UNITED STATES DEPARTMENT OF THE INTERIOR 

HAROLD L. ICKES, Secretary

GEOLOGICAL SURVEY 

W. C. MENDENHALL, Director

Water-Supply Paper 901

SURFACE WATER SUPPLY

of the UNITED STATES

^ * o

1940 \ ! *

PART 11 

PACIFIC SLOPE BASINS

Prepared under the direo&ony-ef 

GLENN L. PARKER, Chief Hydfeujk EjJli

AND OF H. D. McGLASHAN AND G. H.

In cooperation with the States pf

CALIFORNIA AND OREGjON^ 

and other agencies

UNITED STATES

"GOVERNMENT PRINTING OFFICE 

WASHINGTON : 1941

For sale by the Superintendent of Documents, Washington, D. C. - - Price 50 cents (paper cover)

CONTENTS

Scope of work........................................................................ l

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

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

Accuracy of field data and computed results.......................................... 3

Publications......................................................................... 4

Records of discharge collected by agencies other than the Geological Survey.......... 9

Cooperation.......................................................................... 10

Division of work..................................................................... 10

Gaging-statlon records............................................................... 11

Tia Juana River Basin.............................................................. 11

Cottonwood Creek at Morena Dam, Calif............................................ 11

Cottonwood Creek near Dulzura, Calif............................................. 11

Cottonwood Creek above Tecate Creek, near Dulzura, Calif......................... 12

Tia Juana River near Dulzura, Calif.............................................. 13

Tia Juana River near Nestor, Calif............................................... 14

Dulzura conduit near Dulzura, Calif.............................................. 15

Campo Creek near Canipo, Calif.................................................... 16

Otay River Basin................................................................... 17

Otay River at Savage Dam, Calif.................................................. 17

Jamul Creek near Jamul, Calif.................................................... 18

Sweetwater River Basin............................................................. 19

Sweetwater River at Sweetwater Dan, Calif........................................ 19

San Diego Rivar Basin.............................................................. 19

San Diego River at El Capitan Dam, Calif......................................... 19

San Diego River near Santee, Calif............................................... 20

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif.......................... 21

San Vicente Creek at Foster, Calif............................................... 22

San Dieguito River Basin........................................................... 23

Santa Ysabel Creek near Mesa Grande, Calif....................................... 23

San Dieguito River at Lake Hodges, Calif......................................... 24

San Luis Rey River Basin........................................................... 24

San Luis Rey River at Lake Henshaw, near Mesa Grande, Calif...................... 24

San Luis Rey River at Monserate Narrows, near Pala, Calif........................ 25

San Luis Rey River near Bonsall, Calif........................................... 25

San Luis Rey River at Oceanside, Calif........................................... 27

Santa Margarita River Basin........................................................ 26

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 Margarita River at Ysidora, Calif.......................................... 31

Murrieta Creek at Temecula, Calif................................................ 32

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

San Juan Craek Basin............................................................... 34

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

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

Aliso Creek Basin.................................................................. 36

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

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

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

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

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

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

Santa Ana River at Aubxirndale 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, Calif. 46

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

Mill Creek power canals 2 and 3 near Craftonville, Calif......................... 49

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

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

San Timoteo Creek near Redlands, 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

Fontana pipe line near Fontana, Calif............................................ 63

Lytle Creek feast channel) at San Bernardino, Calif.............................. 64

Lytle Creek (west channel) at Colton, Calif...................................... 65

Cajon Creek near Keenbrook, Calif................................................ 66

Meeks & Daley canal near Colton, Calif........................................... 67

Day Creek near Etiwanda, Calif................................................... 68

Cucamonga Creek near Upland, Calif............................................... 69

III
!Y CONTENTS

Gaglng-statlon records Continued.

Santa Ana River Basin Continued. Page

San Jaclnto River near San Jaclnto, Calif........................................ 70

San Jaclnto River near Elslnore, Calif........................................... 71

Elslnore Lake at Elslnore, Calif................................................. 72

Temescal Creek near Corona, Calif................................................ 73

Chino Creek near Prado, Calif.................................................... 74

San Antonio Creek near Claremont, Calif.......................................... 75

Southern California Edison Co.'s conduit near Claremont, Calif................... 77

Santiago Creek near Villa Park, Calif............................................ 78

Santiago Creek at Santa Ana, Calif............................................... 79

Irvlne ranch drainage canal near Tustln, Calif................................... 80

San Gabriel River Basin............................................................. 81

East Fork of San Gabriel River near Camp Bonlta, Calif........................... 81

San Gabriel River near Azusa, Calif.............................................. 82

San Gabriel River at Plco, Calif................................................. 83

San Gabriel River at Spring Street, near Los Alanitos, Calif..................... 84'

West Fork of San Gabriel River at Camp Rlncon, Calif............................. 85

Rogers Creek near Azusa, Calif................................................... 86

Fish Creek near Duarte, Calif.................................................... 87

Sawplt Creek near Monrovia, Calif................................................ 88

San Dlmas Creek near San Dlmas, Calif............................................ 89

Dalton Creek near Glendora, Calif................................................ 90

Little Dalton Creek near Glendora, Calif......................................... 91

San Jose Creek near Whittier, Calif.............................................. 92

Coyote Creek near Artesla, Calif................................................. 93

Brea Creek at Fullerton, Calif................................................... 94

Fullerton Creek at Fullerton, Calif.............................................. 95

Los Angeles River Basin............................................................ 96

Los Angeles River at Los Angeles, Calif.......................................... 96

Los Angeles River near Dovmey, Calif............................................. 97

Los Angeles River at Long Beach, Calif........................................... 98

Pacolma Creek near San Fernando, Calif........................................... 99

Tujunga Creek near Colby ranch, Calif............................................ 100

Tujunga Creek near Sunland, Calif................................................ 101

Little Tujunga Creek near San Fernando, Calif.................................... 102

Halnes Creek near Tujunga, Calif................................................. 103

Arroyo Seco near Pasadena, Calif................................................. 104

Santa Anita Creek near Sierra Madre, Calif....................................... 105

Little Santa Anita Creek near Sierra Madre, Calif................................ 106

Eaton Creek near Pasadena, Calif................................................. 107

Rio Hondo near Montebello, Calif................................................. 108

Rio Hondo near Downey, Calif..................................................... 109

Rio Hondo Slough near Montebello, Calif.......................................... 110

Ballona Creek Basin................................................................ Ill

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

Topanga Creek Basin................................................................ 112

Topanga Creek near Topanga Beach, Calif.......................................... 112

Mallbu Creek Basin................................................................. 113

Mallbu Creek at Crater Camp, near Calabasas, Calif............................... 113

Santa Clara River Basin............................................................ 114

Santa Clara River near Saugus, Calif............................................. 114

Plru Creek near Plru, Calif...................................................... 115

Sespe Creek near Flllmore, Calif................................................. 116

Flllmore Irrigation Co.'s canal near Flllmore, 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

Coyote Creek near Ventura, Calif................................................. 121

Santa Ynez River Basin............................................................. 122

Santa Ynez River at Jameson Lake, near Monteclto, Calif.......................... 122

Santa Ynez River near Santa Barbara, Calif....................................... 122

Santa Ynez River below Gibraltar Dam, near Santa Barbara, Calif.................. 123

Santa Ynez River near Santa Ynez, Calif.......................................... 124

Santa Ynez River at Solvang, Calif............................................... 125

Santa Ynez River near Lompoc, Calif.............................................. 126

Santa Maria River Basin............................................................ 127

Cuyama River near Santa Maria, Calif............................................. 127

Huasna River near Santa Maria, Calif............................................. 128

Arroyo Grande Basin................................................................ 129

Arroyo Grande at Arroyo Grande, Calif............................................ 129

Salinas River Basin................................................................ 130

Salinas River near Santa Margarita, Calif........................................ 130

Salinas River at Paso Robles, Calif.............................................. 131

Salinas River near Spreckels, Calif.............................................. 132

Estrella Creek near Paso Robles, Calif........................................... 133

Nacimiento River near San Miguel, Calif.......................................... 134

San Antonio River at Pleyto, Calif............................................... 135

San Lorenzo Creek near King City, Calif.......................................... 136

Arroyo Seco near Soledad, Calif.................................................. 137

Pajaro River Basin................................................................. 138

Pajaro River near Chittenden, Calif.............................................. 138

Pacheco Creek near Dunneville, Calif............................................. 139

Uvas Creek near Morgan Hill, Calif............................................... 140

Tres Pinbs Creek near Tres Pinos, Calif.......................................... 141

San Benito River near Willow Creek School, Calif................................. 142

San Lorenzo River Basin............................................................ 143

San Lorenzo River at Big Trees, Calif............................................ 143
CONTENTS V

Gaging-station records Continued. Page

Scott Creek Basin.................................................................. 144

Scott Creek near Davenport, Calif................................................ 144

San Francisquito Creek Basin....................................................... 145

San Francisquito Creek at Stafford University, Calif............................. 145

San Francisquito Creek at Palo Alto, Calif....................................... 146

Los Trancos Creek at Stanford University, Calif.................................. 147

Los Trancos canal near Stanford University, Calif................................ 148

Lagunita canal at Stanford University, Calif..................................... 149

Stevens Creek Basin................................................................ 150

Stevens Creek near Cupertino, Calif.............................................. 150

Guadalupe Creek Basin.............................................................. 151

Guadalupe Creek at Guadalupe, Calif.............................................. 151

Guadalupe Creek at San Jose, Calif............~ ................................. 152

Alamitos Creek near Edenvale, Calif.......... ... ................................. 153

Los Gatos Creek at Los Gatos, Calif.............................................. 154

Campbell Creek at Saratoga, Calif................................. .*............. 155

Coyote Creek Basin................................................................. 156

Coyote Creek near Madrone, Calif................................................. 156

Coyote Creek near Edenvale, Calif................................................ 157

Alameda Creek Basin................................................................ 158

Alameda Creek near Niles, Calif.................................................. 158

San Lorenzo Creek Bas in............................................................ 159

San Lorenzo Creek at Haywards, Calif............................................. 159

Kern River Basin................................................................... 160

Kern River near Kernville, Calif................................................. 160

Kern River near Bakersfield, Calif............................................... 162

Kern River No. 3 canal near Kernville, Calif..................................... 163

Borel canal at Tilley Creek, Calif............................................... 164

South Fork of Kern River near Onyx, Calif........................................ 165

South Fork of Kern River at Isabella, Calif...................................... 166

Tulare Lake Bas in.................................................................. 167

Tulare Lake in Kings County, Calif............................................... 167

Tule River near Porterville, Calif............................................... 168

South Fork of Tule River near Success, Calif..................................... 169

Kaweah River near Three Rivers, Calif............................................ 170

North Fork of Kaweah River at Kaweah, Calif...................................... 171

Kings River above North Fork, Calif.............................................. 173

Kings River at Piedra, Calif..................................................... 173

North Fork of Kings River near Cliff Camp, Calif................................. 174

North Fork of Kings River below Rancheria Creek, Calif........................... 175

Los Gatos Creek near Coalinga, Calif............................................. 176

San Joaquin River Basin............................................................ 177

San Joaquin River main stem...................................................... 177

San Joaquin River above Big Creek, Calif....................................... 177

San Joaquin River below Friant, Calif.......................................... 178

San Joaquin River near Newman, Calif........................................... 179

San Joaquin River near Vernalis, Calif......................................... 180

San Joaquin River tributaries above Fresno River................................. 181

Florence Lake near Big Creek, Calif............................................ 181

South Fork of San Joaquin River near Florence Lake, Calif...................... 182

Ward tunnel at intake, Calif................................................... 183

Ward tunnel at outlet, Calif................................................... 184

Bear Creek near Vermilion Valley, Calif........................................ 185

Mono Creek near Vermilion Valley,'Calif........................................ 186

Huntington Lake near Big Creek, Calif.......................................... 187

Big Creek below Huntington Lake, Calif......................................... 188

Pitman Creek below Tamarack Creek, Calif........................................ 189

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

Huntington-Shaver conduit at outlet, Calif..................................... 191

Fine Gold Creek near Friant, Calif............................................. 192

Fresno River Basin............................................................... 193

Fresno River' near Knowles, Calif............................................... 193

Chowchilla River Basin........................................................... 194

Chowchilla River at Buchanan dam site, Calif................................... 194

Merced River Basin............................................................... 195

Merced River at Happy Isles Bridge, near Yosemite, Calif....................... 195

Herced River at Pohono Bridge, near Yosemite, Calif............................ 196

Merced River at Kittridge, Calif............................................... 197

Lake McClure at Exchequer, Calif............................................... 198

Merced River at Exchequer, Calif............................................... 199

Merced River near Livingston, Calif.........:.................................. 200

Tenaya Creek near Yosemite, Calif.............................................. 201

Orestimba Creek Basin............................................................ 202

Orestimba Creek near Newman, Calif............................................. 202

Tuolumne River Basin............................................................. 203

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.................................. 203

Tuolumne River near Hetch Hetchy, Calif........................................ 204

Don Pedro Reservoir near La Grange, Calif...................................... 205

Tuolumne River above La Grange Dam, near La Grange, Calif...................... 206

Falls Creek near Hetch Hetchy, Calif........................................... 207

Cherry Creek near Hetch Hetchy, Calif.......................................... 208

Lake Eleanor near Hetch Hetchy, Calif.......................................... 209

Eleanor Creek near Hetch Hetchy, Calif......................................... 210

South Fork of Tuolumne River near Oakland Recreation Camp, Calif............... 211

Kiddle Tuolumne River near Buck Meadows, Calif................................. 212

Woods Creek near Jacksonville, Calif........................................... 213

Modesto canal near La Grange, Calif............................................ 214

Turlock canal near La Grange, Calif............................................ 215
VI CONTENTS

Gaging-station records Continued.

San Joaquin River Basin Continued. Page

Stanislaus River Basin........................................................... 216

Middle Fork of Stanislaus River at Kennedy Meadows, Calif...................... 216

Middle Fork of Stanislaus River at Sand Bar Flat, near Avery, Calif............ 217

Melones Reservoir at Melones Dam, Calif........................................ 218

Stanislaus River below Melones powerhouse, Calif............................... 219

North Fork of Stanislaus River near Avery, Calif............................... 220

South Fork of Stanislaus River at Strawberry, Calif............................ 221

Philadelphia canal near Strawberry, Calif...................................... 222

Tuolumne canal near Long Barn, Calif........................................... 223

South San Joaquin canal near Knights Ferry, Calif.................'............. 224

Oakdale canal near Knights Ferry, Calif........................................ 225

Calaveras River Basin............. ^............................................. 226

Calaveras River at Jenny Llnd, Calif........................................... 226

Cosgrove Creek near Valley Springs, Calif...................................... 227

Mokelumne River Basin............................................................ 228

Salt Springs Reservoir near West Point, Calif.................................. 226

North Fork of Mokelumne River below Salt Springs Dam, Calif.................... 229

Mokelumne River near Mokelumne Hill, Calif..................................... 230

Mokelumne River at Lancha Plana, Calif......................................... 231

Mokelumne River near Clements, Calif........................................... 232

Mokelumne River at Woodbridge, Calif........................................... 233

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif................... 234

Cold Creek near Mokelumne Peak, Calif.......................................... 235

Bear River at Pardoe Camp, Calif............................................... 236

Middle Fork of Mokelumne River at West Point, Calif............................ 237

South Fork of Mokelumne River near West Point, Calif........................... 238

Woodbridge canal at Woodbridge, Calif.......................................... 239

Sutter Creek near Sutter Creek, Calif.......................................... 240

North Fork of Cosumnes River near El Dorado, Calif............................. 241

Cosumnes River at Michigan Bar, Calif.......................................... 242

Goose Lake Basin................................................................... 243

Drew Creek near Lakevlew, Oreg................................................... 243

Cottonwood Creek near Lakeview, Oreg............................................. 245

Sacramento River Basin............................................................. 246

Sacramento River main stem....................................................... 246

Sacramento River at Antler, Calif.............................................. 246

Sacramento River at Kennett, Calif............................................. 247

Sacramento River near Keswick, Calif........................................... 248

Sacramento River near Red Bluff, Calif......................................... 249

Sacramento River at Butte City, Calif.......................................... 250

Sacramento River at Colusa, Calif.............................................. 251

Sacramento River below Wilkins Slough, Calif................................... 252

Sacramento River at Knights Landing, Calif..................................... 253

Sacramento River at Verona, Calif.............................................. 254

Pit River Basin.................................................................. 255

Pit River near Canby, Calif.................................................... 255

Pit River at Fall River Mills, Calif........................................... 256

Pit River at Big Bend, Calif................................................... 257

Pit River near Ydalpom, Calif.................................................. 258

South Fork of Pit River near Likely, Calif..................................... 259

Hat Creek near Hat Creek, Calif................................................ 260

McCloud River near McCloud, Calif.............................................. 261

McCloud River at Baird, Calif.................................................. 262

Mill Creek Basin................................................................. 263

Mill Creek near Los Molinos, Calif............................................. 263

Elder Creek Basin................................................................ 264

Elder Creek near Henleyville, Calif............................................ 264

Thomas Creek Basin............................................................... 265

Thomas Creek at Paskenta, Calif................................................ 265

Deer Creek Basin................................................................. 266

Deer Creek near Vina, Calif.................................................... 266

Chico Creek Basin................................................................ 267

Chlco Creek near Chico, Calif.................................................. 267

Stony Creek Basin................................................................ 268

Stony Creek above Stony Gorge Reservoir, Calif................................. 268

Grindstone Creek near Elk Creek, Calif......................................... 269

Butte Creek Basin................................................................ 270

Butte Creek near Chlco, Calif.................................................. 270

Feather River Basin.............................................................. 271

Lake Almanor at Prattville, Calif.............................................. 271

North Fork of Feather River near Prattville, Calif............................. 272

North Fork of Feather River at Big Bar, Calif.................................. 273

Feather River near Oroville, Calif............................................. 274

Feather River at Nicolaus, Calif............................................... 275

Butt Creek above tunnel No. 1, near Prattville, Calif.......................... 276

Butt Creek below tunnel No. 1, near Prattville, Calif.......................... 277

Indian Creek near Crescent Mills, Calif........................................ 279

Spanish Creek at Keddie, Calif................................................. 280

Bucks Creek Reservoir near Bucks ranch, Calif.................................. 281

Grizzly Creek near Storrie, Calif.............................................. 282

West Branch of Feather River near Yankee Hill, Calif........................... 283

Concow Creek near Yankee Hill, Calif........................................... 284

Spring Valley ditch near Yankee Hill, Calif.................................... 285

Middle Fork of Feather River near Clio, Calif.................................. 286

Middle Fork of Feather River at Bidwell Bar, Calif............................. 287

South Fork of Feather River at Enterprise, Calif............................... 288

Lost Creek near Clipper Mills, Calif........................................... 289
CONTENTS VII

Gaging-station records Continued. 

Sacramento River Basin Continued.

Feather River Basin Continued. Page

Forbestown ditch near Clipper Mills, Calif..................................... 290

Palermo canal at Enterprise, Calif............................................. 291

Middle Fork of Yuba River at Milton, Calif..................................... 292

Middle Fork of Yuba River near North San Juan, Calif........................... 293

Yuba River at Smartville, Calif................................................ 294

Milton-Bowman tunnel at outlet, Calif.......................................... 295

Oregon Creek near North San Juan, Calif........................................ 296

North Fork of Yuba River near Sierra City, Calif............................... 297

North Fork of Yuba River below Goodyears Bar, Calif............................ 298

Bowman Lake near Graniteville, Calif........................................... 299

Canyon Creek below Bowman Lake, Calif.......................................... 300

Bovvman-Spaulding canal at intake, Calif........................................ 301

Deer Creek near Smartville, Calif.............................................. 302

Bear River near Wheatland, Calif............................................... 305

Bear River canal near Colfax, Calif............................................ 304

American River Basin............................................................. 305

North Fork of American River near Colfax, Calif................................ 305

North Fork of American River at Rattlesnake Bridge, Calif...................... 306

American River at Fair Oaks, Calif............................................. 307

American River at Sacramento, Calif............................................ 308

Middle Fork of American River near Auburn, Calif............................... 309

South Fork of American River near Kyburz, Calif................................ 310

South Fork of American River near Camino, Calif................................ 311

South Fork of American River at Coloma, Calif.................................. 312

Echo Lake flume near Vade, Calif............................................... 313

Medley Lakes outlet near Vade, Calif........................................... 314

Silver Lake outlet near Kirkwood, Calif................................;....... 315

Seepage from Silver Lake near Kirkwood, Calif.................................. 316

Silver Fork of South Fork of American River near Kyburz, Calif................. 317

Twin Lakes outlet near Kirkwood, Calif......................................... 318

El Dorado canal near Kyburz, Calif............................................. 319

Alder Creek near Whitehall, Calif.............................................. 320

Silver Creek at Union Valley, Calif............................................ 321

Silver Creek near Placerville, Calif........................................... 322

South Fork of Silver Creek near Ice House, Calif............................... 323

American River flume near Camino, Calif........................................ 324

Cache Creek Basin................................................................ 325

Clear Lake at Lakeport, Calif.................................................. 325

Cache Creek at Yolo, Calif..................................................... 326

North Fork of Cache Creek near Lower Lake, Calif............................... 327

Putah Creek Basin................................................................ 328

Putah Creek near Guenoc, Calif................................................. 328

Putah Creek near Winters, Calif................................................ 329

Napa River Basin................................................................... 330

Napa River near St. Helena, Calif................................................ 330

Conn Creek near St. Helena, Calif................................................ 331

Russian River Basin................................................................ 332

Russian River near Hopland, Calif................................................ 332

Russian River near Healdsburg, Calif............................................. 333

Russian River at Guerneville, Calif.............................................. 334

Dry Creek near Healdsburg, Calif................................................. 335

Santa Rosa Creek at Santa Rosa, Calif............................................ 336

Eel River Basin.................................................................... 337

Lake Pillsbury at Hullville, Calif............................................... 337

Eel River at Hullville, Calif.................................................... 338

Eel River at Van Arsdale Dam, near Potter Valley, Calif.......................... 339

Eel River at Scotia, Calif....................................................... 340

Potter Valley powerhouse tailrace near Potter Valley, Calif...................... 341

South Fork of Eel River at Garberville, Calif.................................... 342

Van Duzen River at Brldgeville, Calif............................................ 343

Klamath River Basin................................................................ 344

Smaller reservoirs in Klamath River Basin........................................ 344

Williamson River below Sprague River, near Chiloquin, Oreg....................... 345

Upper Klamath Lake near Klamath Falls, Oreg...................................... 346

Link River at Klamath Falls, Oreg................................................ 347

Klamath River at Keno, Oreg...................................................... 348

Klamath River below Fall Creek, near Copco, Calif................................ 349

Klamath River at Somesbar, Calif................................................. 350

Sprague River near Chiloquin, Oreg............................................... 351

Cascade canal near Fish Lake, Oreg............................................... 352

"A" canal at Klamath Falls, Oreg................................................. 353

Keno canal at Klamath Falls, Oreg................................................ 354

Lost River diversion canal near Olene, Oreg...................................... 355

Diversion from Klamath River to Lost River near Olene, Oreg...................... 356

Fall Creek at Copco, Calif....................................................... 357

Keene Creek canal near Ashland, Oreg............................................. 358

Shasta River near Yreka, Calif................................................... 359

Salmon River at Somesbar, Calif.................................................. 360

Trinity River at Lewiston, Calif.................................................. 361

Trinity River near Burnt Ranch, Calif............................................ 362

Trinity River near Hoopa, Calif.................................................. 363
VIII CONTENTS

Gaging-station records Continued. Page 

Smith River Basin................................................................... 364

Smith River near Crescent City, Calif............................................ 364

Miscellaneous discharge measurements................................................. 365

Index................................................................................ 371

ILLUSTRATIONS

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

Joaquin River below Kerckhoff powerhouse, Calif.; C, North Fork of Cache 

Creek near Lower Lake, Calif.............................................

Plate Z. Gaging-station structures: A, Middle Fork of American River near Auburn, 

Calif.; B, Pit River near Uanby, Calif...................................
SURFACE WATER SUPPLY OF PACIFIC SLOPE BASINS IN CALIFORNIA, 1940

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, 1940. The work was begun In 188S 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 8,800 gaging stations In the United States 

and also afe many gaging stations In Alaska and Hawaii. In July 1940, 4,760 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 station affected; cooperation of the second kind Is acknowledged on page 10.

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 run-off Is distributed uniformly both as regards time and area.

"Run-off 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 run-off 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 run-off of 0.0372 Inch from one square mile.

"Stage-discharge relation" Is an abbreviation for the term "relation of gage height to 

discharge."

"Control" Is a term used to designate a feature below the gage that defines the stagedischarge 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
2 EXPLANATION OF DATA

measurements in determining the dally flow. The records of stage are obtained either from 

direct readings on a nonrecordlng 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 1.

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

mean daily discharge, from which the monthly and yearly mean discharge are computed.

For most of the gaging stations 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 run-off. Skeleton rating tables are published except for those stations whose dally 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 

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 daily 

discharge If there Is extensive regulation (also the minimum discharge If useful); and the 

minimum ga'ge 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 nonrecordlng gage read at the time of the crest. Likewise the minimum discharge represents the lowest stage, unless otherwise qualified. The peak discharge for 

the year with the time of its occurrence Is given below the table of monthly discharge for 

some stations. Selected lower peaks are also given If the peak discharge exceeded the 

mean discharge for that day by more than 10 percent. This supplementary Information Is 

generally not given for stations having drainage areas of less than 10 square miles or 

more than 10,000 square miles.

The table of dally discharge gives, for stations equipped with-nonrecordlng gages, the 

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

twice-daily readings. For flashy floods the mean daily discharge is determined from gageheight 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 mean dally gage height. For stations subject to such fluctuation the mean 

daily gage height may not Indicate the true mean daily discharge, which must be obtained 

by averaging the discharge for intervals of the day or by using the discharge integrator, 

an instrument for obtaining the mean dally discharge from a continuous gage-height graph 

and containing as an essential element the rating curve of the station.

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 

or fall In a reach of the stream as a factor In the determination of discharge. Information requisite for determining the slope or fall Is obtained by means of an auxiliary
GEOLOGICAL SURVEY WATER-SUPPLY PAPER 901 PLATE 1

A. FISH CREEK NEAR DUARTE, CALIF. 

Note broad-crested control used in southern California.

B. SAN JOAQUIN RIVER BELOW KERCKHOFF POWERHOUSE, CALIF.

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

GAGING-STATION STRUCTURES.
GEOLOGICAL SURVEY WATER-SUPPLY PAPER 901 PLATE 2

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

B. PIT RIVER NEAR CANBY, CALIF.

GAGING-STATION STRUCTURES.
EXPLANATION OF DATA 3

gage set at some distance from the base gage. The auxiliary gage, If one Is used, Is 

described under "Location." 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 occasional winter discharge 

measurements and gage heights, consideration being given to the available Information on 

temperature and precipitation, no-tes 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.

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

for each month of the figures for that month given In the table of dally discharge. The 

column headed "Maximum" gives the maximum dally discharge and not the Instantaneous discharge when the water surface was at crest stage. Likewise, In the column headed "Minimum" 

the quantity given Is the minimum dally discharge. The column headed "Mean" gives the 

average flow in cubic feet per second during the month.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of stream-flow data depends primarily on (1) the permanency of the stagedischarge relation and (2) the accuracy of observation 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.

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 "second-feet per 

square mile" and "run-off 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 run-off in inches 

are also omitted If the drainage area Includes large noncontrlbutlng 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 gives a general Idea of the flow at the station. The 

table of dally discharge allows more detailed studies of the variation in flow. It should 

be borne in mind, however, that the observations in each succeeding year may be expected
4 ACCURACY OF FIELD DATA AND COMPUTED RESULTS

to throw new light on data previously published, and that greater degrees of refInement 

In computations and records may be warranted with the Increase In data and the use of 

Improved equipment.

14 parts, each 

atures as Indicated

Ivor to

PUBLICATIONS

The results of stream-tlow measurements are now published annually 1: 

part covering an area whose boundaries coincide with natural drainage f 

below:

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

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

	Mississippi River).

3. Ohio River Basin.

4. St. Lawrsnce Rlvsr Basin.

5. Hudson Bay and upper Mississippi River Basins.

6. Missouri River Basin.

7. Lower Mississippi River Basin.

8. Western Gulf of Mexico basins.

9. Colorado River Basin.

10. The Great Basin.

11. Pacific slope basins In California.

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

13. Snake River Basin.

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

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

regard to 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.

Boston, Mass., 945 Post Office Building.

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

Chattanooga, Term., 442 Post Office Building.

College Park, Md., 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., 225 Capitol Building, 410 Asylum Street.

Indianapolis, Ind., 316 Federal Building.

Louisville, Ky., 652 Federal Building.

Madison, Wls., 666 State Office Building.

Montgomery, Ala., 507 Post Office Building.

Ocala, Fla., 302 Post Office Building.

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

South Charleston, W. Va., Armor Park School Building.

Trenton, N. J., 228 Federal Building.

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

West of the Mississippi River:

Austin, Tex., 300 State Highway Building.

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, 508 Hydraulic Laboratory, University of Iowa.

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

Portland, Oreg., 606 Post Office Building.
PUBLICATIONS

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

and Metallurgy.

St. Louis, Mo., 926 New Federal Building. 

Salt Lake City, Utah, 303 Federal Building. 

San Francisco, Calif., 465 Federal Office Building. 

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

Tacoma, Wash., 1100 Washington Building. 

Topeka, Kans., 305 Federal Building. 

Tucson, Arlz., 210 Post Office Building.

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

Director, Geological Survey, Washington, D. C.

Records of flow of streams In the United States have been published In the reports 

tabulated as follows:

Stream-flow data in reports of the Geological Survey 

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

Report Character of data Year

10th A, pt. 2 

llth A, pt. 2 

12th A, pt. 2 

13th A, pt. 3 

14th A, pt. 2 

B 131........

16th A, pt. 2 

B 140........

W 11.........

18th A, pt. 4

Descriptive information only.

Monthly discharge and descriptive Information...

....do.

.do.

W 15.

W 16,

19th A, pt. 4 

W 27.........

W 28.

20th A, pt. 4 

W 35 to 39...

21st A, pt. 4 

W 47 to 52...

22d A, pt. 4 

W 65, 66.....

W 75.........

Monthly discharge (long-time records, 1871-93).. 

Descriptions, measurements, gage heights, and

ratings.

Descriptive information only. 

Descriptions, measurements, gage heights,

ratings, and monthly discharge (also many

data covering earlier years). 

Gage heights (also gage heights for 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 Mississippi River and

Missouri River and tributaries above Kansas

River. 

Descriptions, measurements, and gage heichts 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 heights of

streams west of the Mississippi River except

Missouri River and tributaries. 

Monthly discharge (also for many earlier years). 

Descriptions, measurements, gage heights, and

ratings. 

Monthly di scharge...............................

Descriptions, measurements, gage heights, and

ratings. 

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

Descriptions, measurements, gage heights, and

ratings. 

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

1884 to Sept. 1890. 

1884 to June 30, 1891. 

1884 to Dec. 31, 1892. 

1888 to Dec. 31, 1893. 

1893-94.

1895.

1896. 

1895-96.

1897.

1897.

1897.

1898

1899.

1899.

1900.

1900.

1901.

1901.

Note.- Reports containing records for years after 1901 are given in table on page 6.

The table on the following page gives, by years and drainage basins, the numbers of 

the papers on surface water supply published from 1899 to 1940. 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 data 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 Water-Supply Paper 119.
Numbers of water-supply papers containing results of stream meas

(For basins Included see p. 4)

Year

1899 a... 

1900 g... 

1901 ..... 

1902 ..... 

1903 .....

1904..... 

1905 ..... 

1906..... 

1907-8... 

1909.....

1910..... 

1911.....

1913 ..... 

1914.....

1915..... 

1916 ..... 

1917 ..... 

1918..... 

1919-20..

1921 ..... 

1922..... 

1923 ..... 

1924..... 

1925.....

1926.. . .. 

1927 ..... 

1928..... 

1929..... 

1930.....

1931..... 

1932 ..... 

1933..... 

1934..... 

1935.....

1936. .... 

1937... .. 

1938..... 

1939 ..... 

1940.....

1

35 

47, h48 

65, 75

82 

97

0124, p!25, q!26 

0165, p!66, q!67 

0201, p202, q203 

241 

261

281 

301

351 

381

401 

431 

451 

471 

501

541 

561 

581 

601

641 

661 

681 

696

711 

726 

741 

756 

781

801 

821 

851 

871 

891

2

b35, 36 

48 

65, 75 

b82, 83 

b97. 98

q!26, 127 

q!67, 168 

q203, 204 

242 

262

282 

302

352

382

402 

432 

452 

472 

502

542 

562 

582 

602

642 

662 

682 

697

712 

727 

742 

757 

782

802 

822 

852 

872 

892

3

36 

48, 149 

65, 75 

83 

98

128 

169 

205 

243 

263

283 

303

353 

383

403 

433 

453 

473 

503

543 

563 

583 

603

643 

663 

683 

698

713 

728 

743 

758 

783

803 

823 

853 

873 

893

4

36 

49 

65, 75

m82, 83 

97

129 

170 

206 

244 

264

284 

304

354 

384

404 

434 

454 

474 

504

544 

564 

584 

604

644 

664 

684 

699

714 

729 

744 

759 

784

804 

824 

854 

874 

894

5

36 

49 

k65, 66, 75 

k83, 85 

k98. 99. nlOO

k!28, 130 

171 

207 

245 

265

285 

305

355 

385

405

435 

455 

475 

505

525 

545 

565 

585 

605

625 

645 

665 

685 

700

715 

730 

745 

760 

785

805 

825 

855 

875 

895

6

036, 37 

49, J50 

66, 75 

84 

99

130, r!31 

172 

208 

246 

266

286 

306

356 

386

406 

436 

456 

476

506

526 

546 

566 

586 

606

626 

646 

666 

686 

701

716 

731 

746 

761 

786

806 

826 

856 

876 

896

7

37 

50 

k65, 66, 75 

k83, 84 

k98. 99

k!28, 131 

k!69, 173 

k205, 209 

247 

267

287 

307

357 

387

407 

437 

457 

477 

507

527 

547 

567 

587 

607

627 

647

667 

687 

702

717 

732 

747 

762 

787

807 

827 

857 

877 

897

e

3

5

66, 7

8

9

13

17

21

24

26

28

30

35

38

40

43

45

47

50

52

54

56

58

60

62

64

66

68

70

71

73

74

76

78

80

82

85

87

89

a Rating tables and index to Water-Supply Papers 35-39contained in Water-Supply 

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

b James River only.

c Gallatin River.

d Green and Gunnison Rivers and Colorado River above Gunnison 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 Wissahickon and Schuylkill Rivers to James River.

i Scioto River.

j Loup, Pl

k Tributar

m Lake Ont

n Hudson B

o New Engl

p Hudson R

q Susqueha

r Platte a

s The Grea

Basins.

t Below mo

u Rogue, U
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 seriee 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

298

299

300

447

597-E

636-D

636-E

637-A

74

197

415

£30

370

850

424

492

870

469

395

617

517

61S

198

491

536

279

192

358

491

109

Year 

ending

1903

1912

1912

1912

191S

1927

1927

1927

1927

1900

1905

1915

1906

1910

1937

1916

1919

1935

1921

1914

1927

1920

1926

1906

1917

1920

1909

1906

1913

1917

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

Sacramento River Basin.

California, Water resources of, part 2, Stream measurements

Joaquin River Basin.

California, Water resources of, part 3, Stream measurements

Great Basin and Pacific coast river basins.

California, southern, Surface water supply of Pacific slope

California, Surface water supply of Sacramento River Basin.

California, Surface water supply of San Joaquin River Basin.

California, southern, Surface water supply of Pacific slope

in.

California, Surface water supply of minor San Francisco Bay,

ern 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.

Verwont, Surface waters of.

Washington, Summary of hydrometrlc data in.

Washington, Summary of records of surface watere of.

Wyoming, Surface waters of, and their utilization.

DRAINAGE BASIN

Colorado River (Ariz., 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.

Kennebec River Basin (Maine), Water resources of.

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

New-Kanawha River Basin (N. C., Va., W. Va.), Surface water

of.

Penobscot River Basin (Maine), Water resources of.

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

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

1913.

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

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

in

in San

in the

of.

basins

northsupply

, 1SS8-

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 reports containing compilation of records of discharge

State

Alabama .....

Connecticut. 

Do.......

Georgia. ....

Do .......

a Includes

Year 

ending

1915

1 QPQ

1926

1 Q^^S1920 19 1 1

1934

records

Report

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

Bull. 44, Water resources of 

Connecticut .

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

of monthly discharge in second-feet pe

Issued by

Geological Survey of Alabama. 

Arkansas Geological Survey.

State Geological and Natural 

History Survey.. 

Connecticut State Water

Commission. 

Geological Survey of Georgia. 

Rivers and Lakes Commission.

Division of Waterways.

r square mile for years ] 912-33
PUBLICATIONS

State reports containing compilation of records of discharge Continued

State

Do... ....

Do... ....

Minnesota. . . 

Missouri ....

New Jersey. . 

Do .......

New Mexico. . 

North Carolina.

Ohio........

Do... ....

Do.......

Pennsylvania 

Do .......

Tennessee. . . 

Do .......

Virginia. . .. 

Washington. . 

Wisconsin. . .

Do.......

Year 

ending

1919

1924C

1928d

1939*

1920

1912 

1926

1914

1928 

1934h

1925 

]923

19213

1939k

1914

19241

1930m

1936n

1911 

1932°

1924

1930P

1927 

1933 

1914

1923<5

Report

Indiana.

Indiana.

....do...............................

Water-resources investigation of 

Minnesota. 

Reports of Bureau of Geology and 

Mines, vol. 20, 2d series, Water 

Resources of Missouri.

Bull. 33, Surface water supply of 

New Jersey.

Supply of New Jersey. 

Surface water supply of New Mexico... 

Bull. 34, Discharge records of North 

Carolina Streams

Carolina Streams.

records of Ohio.

of Oregon.

of Oregon.

of Oregon.

of Oregon. 

Report of the Water Supply Commission 

of Pennsylvania.

Bull. 34, Water resources of 

Tennessee.

Tennessee .

Bull. 31, Water resources of Virginia

Bull. 5, Monthly and yearly summaries 

of hydrotietric data. 

1st report of Railroad Commission of 

Wisconsin to Legislature on water 

powers .

Wisconsin to Legislature on water 

powers .

Issued by

Do.

Agriculture. 

Do.

State Drainage Commission.

Missouri Geological Survey 

and Water Resources.

gation, and Drainage. 

Do.

Department of Conservation 

and Development.

Office of the State Engineer. 

Department of Conservation 

and Development. 

Do.

Engineering Experiment Station, Ohio State University. 

Department of Agriculture,

Division of Conservation 

and Natural Resources. 

Office of the State Engineer.

Do.

Do.

Do.

Water Supply Commission of 

Pennsylvania. 

Department of Forests and

Waters . 

Department of Education.

Do.

Conservation and Development 

Commission. 

Department of Conservation 

and Development. 

Railroad Commission of 

Wisconsin.

Do.

b Includes records for years 1927-30.

c Includes records for years 1919-24.

d Includes records for years 1924-28.

e Includes records for years 1928-35.

f Includes records for years 1935-39.

g Includes records for years 1914-28.

h Includes records for years 1928-34.

i Includes records for years 1889-1936; 

records of daily and monthly discharge are not included.

J Includes all'available records prior to 1921.

k Includes records for years 1902-39.

1 Includes records for years 1914-24.

n Includes records for years 1924-30.

n Includes records for years 1930-36.

o Includes records for years 1928-32.

p Includes average weekly discharge for

years 1920-30. 

q Includes records for years 1914-23.

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, Missouri, Montana, Nebraska, New 

Mexico, New York (also New York City Board of Water Supply), North Dakota, Oregon, 

Pennsylvania, Utah, Washington, and Wyoming.
PUBLICATIONS 9

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 Title 

Paper

88 The Passalc flood of 1902.

92 The Passalc 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, California, January 1, 1934.

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.

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.

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, 1940, by agencies other than the Geological Survey. The records for these 

stations are not contained in publications of the Geological Survey.

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

Stream Location Period

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

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

Benedict Canyon Creek..........'

Clear Lake reservoir (elevation

and discharge). 

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

Coyote Creek...................

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

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

Gerber Reservoir (elevation and

discharge). 

"J" canal......................

Short Street, Wllmar, Calif..........................

Sawtelle Boulevard, near Culver City, Calif..........

Westley Street, near Palms, Calif....................

Sec. 8, T. 47 N., R. 8 E., In California, near

Langell Valley, Oreg,

Greenleaf (formerly Cressy) Street, Compton, Calif... 

Del Almo Street Bridge, near Artesla, Calif..........

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

Sunset Avenue, near El Monte, Calif..................

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

Intake near southeast corner of see. 7, T. 41 S.,

R. 11 E., Oreg. 

27O feet telow flood-control dam at Sierra Madre,

Calif. 

Half a mile below flood-control dam near La Verne,

Calif.

Dayton Avenue, above Arroyo Seco, Los Angeles, Calif. 

Marlposa Street, above Verdugo Wash, Los Angeles,

Calif. 

Flrestone Boulevard, above Rio Hondo, South Gate,

Calif.

State Street, below Compton Creek, Long Beach, Calif. 

Van Nuys Boulevard, near Van Nuys, Calif.............

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

*Statlon operated by Los Angeles County Flood Control District.

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

{Unpublished records collected by Bureau of Reclamation.

Little Santa Anita Creek 

Live oak Creek..........

Los Angeles River 

Bo............

Do.

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

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

*1929-40 

t!937-40

*1934-40

J1910-24

1924-40

t!928-40

*192S-40

*1930-40

*1930-40 

t!926-40

t!923-40

*1929-40

t!937-40 

t!937-40

f!937-40

t!938-40

*1928-40

*1938-40

tt. S. Army.

400454 O - 41 - 2
10 RCCORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

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

Stream

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

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

Pacolma Wash. ..................

Ruble Wash. .................... 

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

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

Tujunga Creek. .................

channels) . 

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

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

West Fork of San Gabriel River.

Location

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

Oreg.

Calif. 

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

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

Parthenia Street, near Van Nuys, Calif ..............

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

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

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

Below flood-control dam, near Sunland, Calif ........

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

Covlna Boulevard, at Baldwin Park, Calif ............ 

Half a mile below flood-control dam No. 2, Calif....

Period

*1927-40

*1932-40 

*1932-40 

*1928-40

*1928-40 

*1931-40

*1934-40

*1932-40

*1936-40

*1928-40 

*19 34-40

^Station operated by Los Angeles County Flood Control District.

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

JTJnpubllshed records collected by Bureau of Reclamation.

Note.- The Soil Conservation Service began In 1938 to make studies of run-off from five areas of 

less than 350 acres each In the vicinity of Santa Paula, Calif., and four areas of less than 40 

acres each In the vicinity of Watsonvllle, 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 Works, Frank W. Clark, director, and Edward Hyatt, State engineer; the 

East Bay Municipal Utility District; Stanford University; Santa Clara Valley Water Conservation District; San Bernardino, Ri\erside, Orange, Los Angeles, and Ventura Counties; 

and the cities of San Diego, Santa Barbara, Santa Cruz, and Lodi. In Oregon the work 

was done under cooperative agreement with the State or Oregon, Chas. E. Stricklin, State 

engineer.

Funds were furnished by the Corps or Engineers, U. S. Army, for the construction and 

maintenance of 24 caging stations in the Pacific slope basins in California. The Bureau 

of Reclamation furnished funds for the maintenance of the gaging station on Sacramento 

River at Keswick, Calif.

The entire expense of the stream-flow investigations in the Tuolumne River Basin for 

the Hetch Hetcny project and for Alameda Creek near lilies 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 Southern California Edison Co.,' Ltd., Pacific Gas & Electric Co., 

City of Sacramento, Merced Irrigation District, Emma Rose & Hobart Estate Co., and 

Thermalito and Table Mountain Irrigation Districts, all permittees and licensees of the 

Federal Power Commission; in Oregon, by The California Oregon i-ower Co; in both States, 

by the National Park Service of the United States Department of the Interior.

DIVISION OF WORK

The data Tor 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 (also Fall Creek and Klamath River near Copco, 

Calif.), under the supervision of G. II. Canfield, district engineer. The work in Oregon 

 was done in collaboration with Charles E. Stricklin, State engineer.
GAGING-STATION RECORDS 

TIA JUANA RIVER BASIN

11

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 1940.

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 1939 to September 1940

Month

MflV

Mean 

(second-feet)

22 9

1 92

Run- off 

(acre-feet)

327

Cottonwood Creek near Dulzura, Calif.

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

Barrett dam, 1 mile downstream from confluence with 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 and October 1936 to September 1940.

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 1939 to September 1940

Month

Mnv

Mean 

(second-feet)

3 29

Run-off 

(acre-feet)

£02
12 TIA JUANA 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 mile upstream from confluence with Tecate Creek and 5i miles south 

of Dulzura.

Drainage area.- 316 square miles.

Records available.- October 1936 to September 1940.

Extremes.- Maximum discharge during year, 58 second-feet Apr. 1 (gage height, 3.34 feet), 

rrom rating curve extended above 10 second-feet; no flow for several months.

1936-40: Maximum discharge, 2,780 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 Barrett and Morena Reservoirs, 10 and 18 miles 

respectively, above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

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 

.4 

.3 

.3 

.3

.3 

.6 

.8 

.6 

.5

.4 

.3 

.2 

.2 

.2

.2

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

.2 

.2

.1 

.1 

.1 

.1

Hov.

0.1 

.1

.1 

.1 

.1

.2 

.2 

.3 

.5 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.a

.6 

.5 

.5

Dec.

0.4 

.5 

.5 

.4 

.5

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.7 

.8 

1.2 

1.1

.9 

.9 

.9 

.9 

.9 

.9

Jan.

1.0 

1.0 

1.0 

1.2 

1.5

2.4 

3.4 

2.8 

2.6 

2.5

2.2 

2.0 

1.9

1.8 

1.5

1.4

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.5 

2.4 

1.8

1.5 

1.5 

1.3 

1.3 

1.2 

1.4

Feb.

2.4

5.5 

6.5 

20

11

7 

5 

4.1 

3.2 

3.0

2.8 

2.7 

2.4 

2.4 

2.7

2.5 

2.2 

2.0 

2.0

i.e

1.8 

3.0 

4.3 

3.2 

3.7

14 

8 

6 

5.5

Month

Oot 

Hov

Dec

C

Jan 

Fet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

«

alendar year 1939. .....................

nary

ater year 1939-4

Mar.

5 

4.5 

4.1 

3.4 

3.0

2.6 

2.7 

2.5 

2.4 

2.2

2.0 

1.9 

1.6 

1.5 

1.4

1.3 

1.4 

1.4 

1.5 

1.6

1.6 

1.5 

1.4 

1.4 

1.3

1.3 

1.6 

1.9 

1.6 

1.5 

1.9

Apr.

31.0 

20 

9 

6.5 

5

4.3 

3.9 

3.6 

3.4 

4.3

3.6 

2.5 

1.8 

1.5 

1.4

2.2

1.9 

1.4 

1.2 

1.1

1.0 

1.0 

1.2 

1.5 

1.5

1.8 

2.8 

2.2 

1.5 

1,2

Secondfoot-days

8.7 

7.1 

21.1

3,604.7

52.7 

140.7 

65.2 

125.3 

9.5 

0 

0 

0 

0

430.3

May

1.0 

.6 

.6 

.7 

.7

.6 

.6 

.6 

.5 

.4

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.2

.2

.1 

.1 

.1 

.1

.1 

0 

0 

0 

0 

0

Ma-n^TiinTB

0.8 

.6 

1.2

202

3.4 

20 

5 

31 

1.0 

0 

0 

0 

0

31

June July

Minimum

0.1 

.1 

.4

0

1.0 

1.8 

1.'3 

1.0 

0 

0 

0 

0 

0

0

Aug.

Mean

0.28 

.24 

.68

9.88

1.70 

4.85 

2.10

4.18 

.31 

0 

0 

0 

0

1.18

Sept.

Run-off in 

acre-feet

17 

14 

42

7,150

105 

879 

129 

849 

19 

0 

0 

0 

0

854

Peak discharge.- Feb. 4 (12m.) 25 sec.-ft.; Feb. 86 (10:30 a.m.) 19 sec.-ft.; Apr. 1 (4:30 p.m.) 

58 sec.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
TIA JUANA RIVER BASIN 13 

Tia Juana River near flulzura, Calif.

Location.- Water-stage recorder, lat. 32°33'50", long. 116 0 46'25" > In sec. 33, T. 18 S.,

 R"7~Tr~E., half a mile downstream from confluence of Cottonwood and Tecate Creeks and 

5t miles south of Dulzura. Altitude of gage, about 550 feet.

Drainage area.- 478 square miles, of which 62 square miles Is In Mexico. 

Records available.- October 1936 to September 1940.

Extremes.- Maximum discharge during year, 120 second-feet Apr. 1 (gage height, 2.84 feet); 

no flow during August and September.

1936-40: Maximum discharge, 4,700 second-feet Feb. 7, 1937 (gage height, 8.50 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 except those for periods of doubtful gage-height record, which are

 fair. Flow regulated by Morena and Barrett Reservoirs on Cottonwood Creek.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

2122

23 

24 

25

26 

27 

28 

29 

30 

31

Dot.

dO.9 

d.7 

.6 

.5 

.5

.4 

.9 

.8 

.6 

.5

.4 

.4 

.3 

.2 

.2

.2 

.2 

.2 

.3 

.3

.3 

.2 

.2 

.2 

.3

.3 

.3 

.2

.2 

.2 

.2

Hov.

0.1 

.1 

.2 

.2 

.2

.3 

.3 

.5 

.8 

.8

.6 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.6 

.6

.6 

.7 

2.1

1.2 

1.0

Dec.

O.9 

.8 

.8 

.8 

.S

.8 

.9 

1.0 

1.2 

1.3

1.5 

1.2 

1.0 

1.1 

1.0

1.1 

1.2 

1.2 

1.1 

1.1

1.2 

1.2 

2.6 

6 

3.2

2.4 

2.3 

2.1 

2.0 

2.0 

2.1

Jan.

S.I 

2.3 

2.6 

5.5 

6.5

14 

19 

17 

11 

7,5

5.5 

8 

5.5 

4.2 

3.7

3.5 

3.5 

3.5 

3.2 

3.0

3.2 

3.0 

4.2 

12 

5.5

4.2 

4.0 

3.0 

2.6 

2.6 

3.7

Feb.

14 

31 

38 

64 

41

24 

19 

16 

13 

12

11 

10 

9 

10 

12

10 

9 

9 

8 

7

7 

11 

19 

17 

19

44 

29 

20 

22

Month

Oet 

Hot 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

uary

11.....................................

ater year 1939-4 0. .....................

Mar.

20

17 

16 

14 

13

11 

9.5 

9 

8.5 

S

7 

6.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

4.8 

4.4 

4.1 

3.8

4.8 

7 

6 

5 

4.1 

6.5

Apr.

64 

61 

32 

19 

15

12 

10 

9 

9 

8

8 

6 

4.8 

3.5 

4.8

4.4 

3.5 

3.0 

2.7 

2.5

2.7 

3.5 

3.2 

3.8 

3.8

5 

6.5 

5.5 

4.8 

3.3

Secondfoot-days

11.7 

16.9 

47.9

6,532.6

179.1 

555 

239.5 

324.3 

21.0 

4.8 

.62 

O 

0

1,400.82

Hay

2.1 

1.7 

1.4 

1.4 

1.5

1.4 

1.1 

1.0 

.8 

.8

.7 

.6

.5 

.5 

.5

.5 

.4 

.5 

.4 

.5

.3 

.2 

.2

.2 

.3

.2 

.2 

.3 

.3 

.3 

.2

Mq-fr^flpMfl

O.9 

2.1 

6

304

19 

64 

20 

64 

2.1 

.2

0 

0

64

June

0.2 

.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 

.1

Mininiuiii

0.

.: .(

o

2. 

7 

3.( 

2.,.'

0 

0

0

July

>e0.02

Aug.

Mean

3 0.38 

L .56 

3 1.55

17.9

L 5.78 

19.1 

3 7.73 

3 10.8 

3 .68 

L .16 

.02 

0 

0

3.83

Sept.

Run-off in 

acre-feet

23 

34 

95

13,000

355 

1,100 

475 

643 

42 

9.5 

1.2 

0 

0

2,780

Peak discharge.- Feb. 4 (4 a.m.) 75 sec.-ft.; Feb. 26 (5 a.m.) 53 sec.-ft. ; Apr. 1 (3:30 p.m.) 

12O sec.-ft.

d Doubtful gage-height record; discharge Interpolated.

e Doubtful gage-height record; discharge computed on basis of one discharge measurement and gage 

heights.
14 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. 

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

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

Records available.- January to September 1915, October 1936 to September 1940.

Extremes.- Maximum discharge during year, 109 second-feet Feb. 4 (gage height, 2.79 feet); 

no flow for several months.

1936-40: 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 during part of each year.

Remarks.- Records good except those for period of faulty recorder operation, which are 

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

and Rodriguez Reservoir, operated by Government of Mexico.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

h3.2

h2.8

h2.S

hl.O

hl.O

h.5

6

6

6

3.6

2.8

1.4

.5

.3

.2

0

O

O

0

0

0

0

0

0

0

0

0

0

O

0

0

HOT.

O

O

0

0

0

0

O

0

O

.5

1.4

1.6

2.2

2.0

2.O

.2

 O

0

O

0

O

0

0

O

O

.2

.9

4.4

2.8

2.5

-

Dec.

2.5

2.2

3.2

3.2

3.6

4.0

3.6

3.6

3.6

3.6

3.6

3.6

3.2

2.5

2.5

2.5

2.2

2.5

2.8

.3

0

O

0

.3

.7

1.2

1.4

1.6

1.4

1.6

1.8

Jan.

2.6

4.0

4.4

6

6

6

7.5

7.5

7

6

6

6

6

4.9

4.4

4.0

4.0

4.0

4.0

4.O

3.6

4.0

4.4

4.9

4.4

4.0

4.4

4.0

3.6

2.8

3.2

Feb.

7

26

20

70

72

43

33

26

26

24

22

20

18

18

16

16

14

12

13

9

10

18

20

18

20

38

58

41

38

-

Month

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

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

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

Water year 1939-'10. .....................

liar.

36

29

24

22

18

16

12

hlO

hlO

h9

h8

h7.5

h7.5

7

6

5.5

4.9

4.9

4.9

5.5

5.5

6

2.0

.9

.4

0

.4

.3

0

O

.6

Apr.

9

86

65

44

34

28

26

24

20

18

14

5.5

2.0

.7

.4

.1

O

O

0

0

0

0

0

0

0

0

0

0

0

O

Secondfoot-days

38.1

20.7

68.8

9,870.6

T A* A.rj / .OQ 

766

263.8

376.7

0

0

0

O

0

1,681.9

May

^flTr1iip"fl

6

4.4

4.0

1,080

7.5

72

36

86

0

O

0

0

0

86

June July

Minimum

0

O

0

0

2.8

7

0

0

0

0

0

0

0

0

Aug.

Mean

1 '.6923

2.28

27.0

4.77

26.4

8.51

12.6

0

0

0

0

0

4.60

Sept.

Run-off in 

acre-feet

76

41

136

19,590

293

1,520

523

747

0

0

0

0

0

3,340

Peak discharge.- Feb. 4 (1 to 6 p.m.) 109 sec.-ft.; Apr. 2 (9:30 a.m. to 1 p.m.) 106 sec.-ft. 

h Faulty recorder operation; discharge computed from partial record and staff-gage readings.
TIA JUANA RIVER BASIN 

Dulzura conduit near Dulzura, Calif.

15

Location.- Water-stage recorder and Cippoletti weir, lat. 32°37'05", long. 116°45'50", 

 in SWi sec. 10, T. 18 S., R. 2 £., about 0.1 mile south of State Highway 94 and 2.3 

miles east of Dulzura. Altitude of gage, about 1,500 feet.

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

Extremes.- Maximum daily discharge during the period, 29 second-feet many days in Augus"t 

and September; no flow July 24-29 and Sept. 21-30.

1909-15, 1940: Maximum daily discharge, 65 second-feet Feb. 4, 1911; no flow for. 

periods each year.

Remarks._- Records good.

Discharge, in second-feet, water year October 1939 to September 1940

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. Nov. Dec. Jan. Feb.

Month

Dot 

Nov 

Dec

C

Jan 

Pet 

Mar

Apr 

May 

Jun 

Jul 

Aug 

Sep

T

ember. .................................

 lendar year

il.....................................

he perio

Mar. Apr.

Seoondfoot-days

4S 

569 

467.4 

S94 

516.6

-

May

16 

16 

16

Maximum

16 

25 

25 

29 

29

-

June

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16

16

16 

16 

16 

16 

IS

22 

25 

25 

25 

25

25 

25 

25 

25 

25

July

25 

25 

25 

25 

25

25 

25 

25 

25 

25

24 

24 

24 

24 

14

12 

12 

12 

IS 

13

13 

4.2 

.2 

0 

0

0 

0 

0 

0

11

IS

Minimum

16 

16 

0 

27 

0

-

Aug.

27 

29 

29 

29 

29

29 

29 

29 

29 

S9

29 

28 

28 

28 

29

29 

29 

29 

29 

29

29 

29 

29 

S9 

29

29 

29 

29 

99 

29 

29

Mean

16.0 

19.0 

15.1 

28.8 

17. S

-

Sept.

29 

29 

29 

29

27

26 

29 

29 

29 

29

S9 

29 

29 

29 

29

29 

24 

IS 

15 

6

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Run-off in 

acre-feet

95 

1,130 

927 

1,770 

1,020

4,940

9-232 February 1936

UNITED STATES DEPARTMENT OP TfiE INTERIOR 

Geological Survey
ib TIA JUANA RIVER BASIN

Campo Creek near Campo, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 32°35'20", long. 

116"31'35", In sec. 24, T. 18 S., R. 4 E., on State highway, about 3i miles southwest 

of Campo.

Drainage area.- 84 square miles, of which 4 square miles is in Mexico. 

Records available.- October 1936 to September 1940.

Extremes.- Maximum discharge during year, 87 sacond-feet Apr. 1 (gage height, 1.39 feet), 

from rating curve extended above 45 second-feet on basis of velocity-mean depth relation and cross-sectional area at control.

1936-40: 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-mean 

depth relation and cross-sectional area at control; no flow at times during summer.

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

Discharge, In second-feet, water year October 1939 to September 1940

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 

26 

29 

30 

31

Oct.

0.6 

.7 

.8 

.7 

.6

,7 

1.3 

2.0 

1.5 

1.1

.8 

.7 

.7 

.7 

.7

.6 

.7 

.7 

.8 

.8

.7 

.8 

.8 

1.0 

1.2

1.2 

1.1 

.8 

.7 

f.8 

a. 8

Nov.

fO.8 

.8 

.8 

.7 

.8

.8 

.8 

1.2 

2.6 

2.2

1.8 

1.7 

1.6 

1.5 

1.5

1.5 

1.6 

1.7 

1.7 

1.7

1.7 

1.4 

1.3 

1.7 

2.2

2.3 

2.4 

2.6 

2.6 

2.4

Dec.

2.3 

2.3 

2.2 

2.2 

2.2

2.2 

2.3 

2.3 

2.3

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.3 

2.3

2.4 

2.4 

2.8 

6 

3.8

3.0 

3.0 

3.0 

2.8 

2.8 

2.8

Jan.

3.0 

3.0 

3.0 

3.2 

4.2

5 

13 

9 

9 

7

6 

6 

6 

4.6 

4.2

3.8 

3.5 

3,8 

3.5 

3.5

3.5 

3.5 

3.5 

5 

4.6

4.2 

4.2 

3.8 

3.5 

3.5 

3.5

Feb.

7 

24 

16 

31 

13

9 

8 

7.5 

6.5 

6.5

6.5 

6 

5 

5.5

7

6 

4.6 

5 

4.6 

4.2

4.2 

7.5 

18 

10 

9.5

20 

11 

9 

9

Month

Oot 

Hev 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

H

ua

ater year 1939-4

Mar.

10 

8 

7 

6 

6

5.5 

4.6 

4.6 

4.6 

4.6

4.6 

4.2 

3.8 

3.5 

3.5

3.8 

3.8 

3.8 

3.8 

3.8

4.2 

3.8 

3.5 

3.5 

3.2

3.2 

3.2 

3.8 

3.5 

2.8 

3.2

Apr.

46 

24 

10 

7.5 

6

5 

4.2 

3.8 

3.2 

3.2

2.8 

2.4 

2.3 

2.3 

2.3

2.S 

2.8 

2.4 

2.3 

2.2

2.1 

2.1 

2,2 

2.2 

2.2

2.1 

3.8 

3.8 

3.2 

2.1

Secondfoot-days

27.1 

48.4 

81.3

1,813.8

147.1 

281.1 

137.4 

163.3 

27.9 

8.1 

2.06 

1.78 

2.72

928.26

May

1.7 

fl.4 

2.0 

1.7 

fl.2

fl.4 

fl.3 

fl.l 

.8 

.6

.6 

.6 

f.5 

.8 

.8

.8 

.9 

.8 

.9 

.9

1.0 

.9 

.9 

.8 

.6

.5 

.5 

.5 

.5 

a.5 

a. 4

Maximum

2.0 

2.6 

6

57

13 

31 

10 

46 

2.0 

.4 

.2 

.1 

.2

46

June

aO.4 

a. 4 

a. 4 

a. 3 

f.3

.3

.4 

.4 

.3 

.3

.3 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

,2 

.2

July

0,2 

.2 

.2 

.1 

.1

.1 

.1 

.1

.1

Minimum

0.6 

.7 

2.2

0

3.0 

4.2 

2.8 

2.1 

.4 

.2

-

Aug.

0.1 

.1

.1 

.1

Mean

O.S7 

1.61 

2.62

4.97

4.75 

9.69 

4.43 

5.44 

.90 

.27 

.066 

.057 

.091

2.54

Sept.

0,1 

.1 

.1

.1

.1 

.1 

.1 

,1

.1 

,1 

.1 

,1 

.1

,2 

.2 

.1 

.1 

,1

Run-off in

acre-feet

54 

96 

161

3,590

292 

558 

273 

324 

55 

16 

4.1 

3.5 

5.4

1,840

Peak discharge.- Feb. 4 (1:30 a.m.) 45 sec.-ft.; Feb. 26 (4 a.m.) 27 sec.-ft.; Apr. 1 (12 m.) 87 

aec.-ft.

a No gage-height record; discharge Interpolated.

f Discharge computed from partial gage-height record.

Note.- Discharge leas than 0.1 second-foot on days for which no figures are given.

9-23B February 1936

TOUTED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
OTAY RIVER BASIN 

Otay River at Savage Dam, Calif.

17

Location.- Lat. 32°36'40", long. 116°55'40", NWi sec. 18, T. 18 S., R. 1 E., at Savage 

Dam, at Lower Otay Reservoir (altitude or 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 1940. 

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 1939 to September 1940

Month

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

Mean 

(second-feet)

Rim-off 

(acre-feet)

52
18 OTAY RIVER BASIII

Jamul Creek near Jamul, Calif.

Location.- Water-stage recorder and broad-crested weir control with 5-foot Venturi flume 

 for low-water notch, lat. 32°38'10", long. H6°53'05", in NEi 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 54- miles south of Jamul. Altitude of 

gage, about 500 feet.

Drainage area.- 72 square miles.

Records available.- April to September 1940.

Extremes.- Maximum daily discharge during period, 30 second-feet Apr. 10; minimum daily, 

0.2 second-foot Sept. 28-30.

Remarks.- Records good.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov. Dec. Jan. Feb.

Month

Oct 

Hov

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

T

alendar year

il 21-30 ...............................

he perioa... ...........................

Mar. Apr.

30

29 

23 

2S 

27 

27

27 

26 

26 

25 

25

11 

16 

18 

18 

18

18 

19 

18

17 

17

Secondfoot -days

468 

517 

534 

429.4 

807 

504.4

-

May

17 

16 

17 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

17

17

17 

17 

17 

17 

17

18 

IS 

17 

17 

17

17 

17 

17 

17 

17 

16

MftTrflnn"1

30 

IS 

24 

23 

27 

28

-

June

16 

17 

16 

16 

16

16 

16 

16 

15 

15

15

14 

14 

14 

15

15 

14 

14 

15 

16

19 

22 

23 

23 

24

24 

24 

24 

23 

23

July

23 

23 

23 

23 

23

23 

22 

22 

22 

22

22 

21 

21 

22

17

12 

12 

12 

12 

11

11 

S.5 

f4.0 

a3.0 

s.2.0

al.4 

al.O 

a. 6 

a. 5 

f.4 

9

Minimum

11 

16 

14 

.4 

19 

.2

-

Aug.

19 

24 

25 

26 

26

26 

26 

26 

S& 

26

26 

26 

26 

27 

27

27 

27 

27 

27 

27

27 

27 

27 

27 

26

26 

26 

26 

26 

26 

26

Mean

22.3 

16.7 

17. S 

13.9 

26.0 

16.8

-

Sept.

26 

26 

26 

26 

25

37 

25 

27 

27 

28

2S 

28 

28 

27 

27

27 

25

IS 

17 

7.5

3.0 

1.3 

1.2 

.9 

.6

.4 

.4 

.2 

.2 

.2

Run-off in 

acre-feet

928 

1,030 

1,060 

852 

1,600 

1,000

6,470

a No gage-height record; discharge computed on basis of probable recession curve. 

f Discharge computed from partly estimated gage heights.
SWEETWATER RIVER BASIN 19

Sweetwater River at Sweetwater Dam, Calif.

Location.- Lat. 32°41'20", long. 117°00'35", at Sweetwater Dam, in La Nacion 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.- December 1887 to September 1940.

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 1939 to September 1940

Month

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

Mean 

(second-feet)

0 39

in ft

29 9

23 9

Run-off 

(acre-feet)

31

SAN DIEGO RIVER BASIN 

San Diego River at El Capitan Dam, Calif.

Location.- Lat. 32 053'00n , long. 116°48'40", in NEi sec. 7, T. 15 S., R. 2 E., at El 

Capitan 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 1940.

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.

Ceoperation.- Records furnished by city of San Diego.

Monthly discharge, water year October 1939 to September 1940

Month

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

Mean 

(second-feet)

10.4

Run-off 

(acre-feet)

640

4,200

298

241
SAN DIEGO RIVER BASIN

San Diego River near Santee, Calif.

Location.- Water-stage recorder and unfinished rubble dam control, lat. 32°49'20", long.

 117U 03'25", in Ex Mission San Diego grant, in Mission Gorge, 6 miles west of Santee, 

San Diego County. Altitude of gage, about 205 feet.

Drainage area.- 380 square miles.

Records available.- May 1912 to September 1940 (prior to 1920, incomplete).

Average discharge.- 25 years (1912-15, 1917-19, 1920-40), 35.9 second-feet.

Extremes.- Maximum discharge during year, 1,170 second-feet Feb. 3 (gage height, 3.00

 feet;: no flow at times during summer.

1912-40: Maximum discharge, 70,200 second-feet Jan. 27, 1916 (gage height, 25.1 

feet); 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 those for periods of no gage-height record, which are fair.

 Diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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

.2 

.4 

.3 

.2

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1 

.1

NOT.

0.1 

.2 

.2 

.2 

.2

.2 

.2 

a. 2 

a. 2 

.2

.2 

.2 

.2 

.1

.1

.1 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.4 

.3

.2 

.2 

.5 

.3 

.2

Dec.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.3 

.4 

.2

.2 

.1 

.2 

.1 

.2 

.2

Jan.

0.2 

.2 

.3 

.5 

.6

1.0 

1.0 

2.7 

1.5 

1.0

.9 

1.0 

1.2 

.S 

.5

.5 

.4 

.4 

.4

.4

.4 

.4 

.5

2.7 

1.2

.8 

.7 

.6 

.5 

.5 

.4

Feb.

1.2 

9.5 

ISO 

391 

124

63 

43 

29 

19 

16

14 

12 

10 

10 

11

S.5 

7.5 

7 

7.5 

7

7 

S.5 

9.5 

8 

S.5

32 

31 

IS 

16

Month

Oot 

Hov 

Dec

0

Jan

Feb 

Mar 

Apr 

Ha, 

Jun 

Jill 

Aug 

Sep

V»

ember. .................................

alendar year 1939. .....................

uary

ater year 1939-4

Mar.

14 

12 

12 

11 

9.5

8.5 

7.5 

7 

7 

7

6.5 

5.5 

4.5 

4.5 

4.1

3.3 

3.0 

3.0 

3.0 

2.7

2.7 

2.4 

2.2 

1.9 

1.7

1.7 

2.2 

1.9 

1.5 

1.5 

2.7

Apr.

66 

77 

34 

24 

16

12 

11 

9.5 

S 

7.5

6.5 

4.9 

3.7 

3.3 

2.7

2.7 

2.7 

2.2 

1.9 

1.7

1.7 

1.7 

1.9 

1.9 

1.7

2.4 

3.3 

4.1 

3.0 

2.2

Seoondfoot-days

5.0 

6.0 

5.3

6,373.04

24.2 

1,108.7 

158.0 

323.2 

15.6 

3.0 

.93 

.62 

.90

1,651.45

May

1.5 

1.1 

1.0 

.9 

.9

1.0 

.9 

.9 

.8

.5

.5 

.4 

.4 

.4 

.4

.2 

.2 

.3 

.4 

.4

.5 

.6 

.4 

.2 

.2

.1 

.1 

.1 

.1

.1 

.1

Maximum

0.4 

.5 

.4

608

2.7 

391 

14 

77 

1.5

391

June

0.1.1 .1 .1

.1

.1 

.1

> -1

Minimum

0.

. 

.]

0

1. 1.. 1.'

.]

-

July

> 0.03

Aug.

> 0.02

Mean

L 0.16 

L .20 

L .17

17.5

2 .73 

3 3S.2 

5 5.10 

7 10.8 

L .50 

.10 

.03 

.02 

.03

4.51

Sept.

 0.03

Run-off in 

acre-feet

9.9 

12

11

12,630

48 

2,200 

313 

641 

31 

6.0 

1.8 

 1.2 

1.8

3,280

Peak discharge.- Peb. 3 (9 p.m.) 1,170 sec.-ft.; Peb. 26 (3:30 p.m.) 52 sec.-ft.; Apr. 1 (8:30 

p.m.) 145 sec.-ft.

a No gage-height record; discharge interpolated.

Note^- Mean monthly discharge for period of no gage-height record; June S to Sept. 30, computed 

on basis of five discharge measurements and one field estimate of flow.
SAN DIEGO RIVER BASIN 21

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif.

Location.- Lat. 32°59'15", long. 116°35'10", in NE-J 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 1926 (outflow from Cuyamaca Reservoir), 

October 1935 to September 1940 (inflow to Cuyamaca Reservoir).

Remarks.- Discharge computed by Geological Survey based on records of rainfall, evaporatlon, storage, overflow, and release from Cuyamaca Reservoir. Cuyamaca Reservoir was 

built in 1886 and enlarged in 1894. Its present capacity is 11,600 acre-feet.

Cooperation.- Basic data furnished by La Mesa, Lemon Grove, and Spring Valley Irrigation 

District.

Monthly discharge, water year October 1939 to September 1940

Month

Calendar year 1939. .........

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

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

Water year 1939-40. .........

Mean 

(second-feet)

2.28

6.57

2.30

2.45

Run-off 

(acre-feet)

140

4,760

137

1,780
22 SAN DIEGO RIVER BASIN

San Vicente Creek at Foster, Calif.

Location.- Water-stage recorder and concrete control, lat. 32054'40", long. 116°55'35", 

 in sec. 31, T. 14 S., R. 1 E., half a mile north of Foster. Altitude of gage, about 

750 feet.

Drainage area.- 75 square miles.

Records available.- January to April 1915, October 1936 to September 1940.

Extremes.- Maximum discharge during year, 225 seconci-feet Feb. 4 (gage height, 2.02 feet); 

no flow at times in July, August, and September.

1915, 1936-40: Maximum discharge, 9,400 second-feet, Feb. 7, 1937 (gage height, 

6.80 feet), from rating curve extended above 1,500 second-feet by logarithmic plotting. 

No flow during part of each year.

Remarks.- Records good except those for period June to September, which are fair.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1.1 .1

.1 .1 .1 .1 

.1

.1 .1 .1 .1 .1

.1 .1 .1 .1 

.1

.1 .1 .1 .1.1

.1 .1 .1 .1 .1 .1

HOT.

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

Dec.

0.1.1 .1

.1 .1 .1 .1 

.1

.1 .1 .1 .1 .1

.1 .1 .1 .1 .1

.1 .1 .1 .1 .1

.1 .1 .1 .1 .1 .1

Jan.

0.1 

.1 

.1

.2 

.2 

1.4 

.3 

.5

.8 

3.2 

5 

2.3 

1.5

1.1 

.9 

.8 

.6 

.6

.6 

.6 

.8 

2.8 

1.5

1.0 

1.0

.9 

.8 

.7 

.7

Feb.

5.5 

32 

51 

95 

36

21 

16 

12 

9

7

6 

4.7 

4.1

5 

6

4.1 

3.8 

3.6 

2.9 

2.6

2.8 

4.1 

4.4 

3.8

9.5

33 

20 

14 

13

Month

Dot 

NOT 

Dec

C

Jan 

Fet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

V

uary f t ^ f t

y. .....................................

ust.. ..................................

ater year 1939-4

Mar.

12 

12 

11 

10 

6

5 

4.7 

3.8 

3.8 

3.8

3.6 

3.1 

2.6 

2.4 

2.3

2.3 

2.3 

2.4 

2.6 

2.4

2.1 

2.1 

1.7 

1.6 

1.5

1.5

1.5 

1.6 

1.5 

1.5 

6.5

Apr.

S2 

30 

IS 

15 

13

10 

8.5 

7.5 

7 

6

4.7 

3.6 

3.1 

2.8 

3.1

3.6 

2.9 

2.6 

2.0 

1.9

1.7 

1.7 

2.0 

2.0 

1.9

4.4 

4.1 

2.3 

2.0 

1.6

Seoondfoot-days

3.1 

3.0 

3.1

3,388.9

31.3 

431.9 

121.0 

251.0 

9.9 

1.79 

.62 

.31 

.30

857.32

May

1.3 

1.0 

.8 

.8 

.7

.7 

.6 

.6

.5 

.3

.3 

.2 

.2 

.£ 

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Mq^piMm

0.1.1.1

405

5 

95 

12 

82 

1.3

95

June

,e0.06

Minimum

0.

2. 

1. 

1.

-

July

, eO.02

Aug.

 eo.01

Mean

L 0.10 

L .10 

L .10

I 9.26

L 1.01 

3 14.9 

3 3.90 

5 8.37 

L .32 

.06 

.02 

.01 

.01

2.34

Sept.

> eo.01

Run-off in 

acre-feet

6.1 

6.0 

6.1

6,730

62 

857 

240 

498 

20 

3.6 

1.2 

.6 

.6

1,700

Peak dlscharge.- Feb. 4 (1 a.m.) 325 sec.-ft.j Feb. 26 (3 to 6 a.m.) 44 s 

(10:30 a.m.) 158 sec.-ft.

ee. -ft.; Apr. 1

Mean monthly discharge computed on basis of gage heights and discharge measurements.

9-252 February 19S6

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
SAN DIEGUITO RIVER BASIN 

Santa Ysabel Creek near Mesa Grande, Calif.

23

Location.- Water-stage recorder and broad-crested weir control, lat. 33°07'15", long. 

116"48'30", in NEtNWf sec. 20. T. 12 S., R. 2 E., half a mile upstream from confluence 

with Black Canyon Creek and 4t miles southwest of Mesa Grande. Altitude of gage, about 

2,000 feet.

Drainage area.- 58 square miles.

Records available.- October 1936 to September 1940. December 1912 to September 1928 at 

site 1 mile upstream.

Average discharge.- 19 years (1913-28, 1936-40), 34.6 second-feet.

Extremes.- Maximum discharge during year, 445 second-feet Apr. 1 (gage height, 2.38 feet); 

no flow at times in July, none during August and September.

1912-24, 1936-40: Maximum discharge, 21,100 second-feet Jan. 27, 1916, by slopearea method; no flow at times.

Remarks.- Records good except those for period of doubtful gage-height record, which are

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

5

6 

7 

8 

9 

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

85

26 

27 

28 

29 

90 

31

Oot.

1.6 

2.1 

2.1

1.3

1.6 

3.6 

3.S 

2.5 

1.8

1.1

1.1 

1.0 

1.1 

1.0

1.0 

1.2 

1.3 

1.4 

1.3

1.0 

1.0 

.9 

1.1 

1.6

1.6 

1.6 

1.0 

.7 

.6 

.7

HOT.

0.9 

1.0 

1.2

1.3

1.5 

1.5 

2.2 

8 

3.6

2.5 

2.1 

1.6 

1.6 

1.9

1.8 

1.9 

1.8 

1.8 

1.6

1.6 

1.7 

1.6 

1.8 

2.2

2.2 

2.2 

4.8 

3.3 

2.9

Dec.

2.4 

2.1 

1.7

1.6

1.9 

2.0 

2.2 

2.4 

2.5

2.6 

2.4 

2.1 

2.2 

2.4

2.3 

2.2 

2.1 

2.0 

2.1

2.2 

3.3 

4.0 

8 

4.0

3.1 

3.0 

2.9 

2.7 

2.6 

2.5

Jan.

2.4 

2.4 

2.5

9

14 

21 

26 

18 

26

21 

36 

23 

12 

10

9 

8 

8 

7.5 

6

5.5 

5.5 

7 

14 

8.5

8 

6.5 

6 

5.5 

5 

5.5

Feb.

8.5 

48 

83 

166 

40

24 

21 

16 

14

13

11 

12 

11 

16 

42

17 

15 

15 

13 

12

11 

16 

28 

16 

25

123 

50 

32 

53

Month

Oot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

alendar year 1939. .....................

oary

ater year 1939-4

Peak discharge. -

17 p.m.) 445 sec.-f 

d Doubtful gage-h

Mar.

38 

32 

28 

24 

24

24 

21 

20

18 

17

16 

15 

14 

13 

13

14 

14 

13 

15 

14

13 

12 

11 

11 

11

11 

15 

15 

12

11 

16

Apr.

280 

147 

72 

43

44

40 

38 

38 

38 

32

24 

20 

18 

IS 

20

20 

17 

17 

17 

17

18 

18 

20 

18 

20

26 

34 

26 

23 

20

Seoondfoot-days

45.5 

65.3 

81.1

5,117.3

343.3 

951.5 

525 

1,188 

250.4 

60.1 

4.5 

0 

0

3,514.7

May

16 

13 

12 

13 

14

14 

14 

11 

9 

9

9 

8.5 

8.5 

7.5 

7.5

6 

6.5 

7.5 

8 

7.5

6 

5 

5 

5.5 

4.5

4.2 

3.8 

4.2 

4.0 

3.5 

3.2

Maximum

3.8 

8 

8

226

36 

166 

38 

280 

16 

4.0 

.7 

0 

0

280

June

3.0 

3.3 

3.5 

3.2 

3.5

4.0 

3.0 

3.5 

3.5 

2.9

2.3 

2.4 

2.4 

2.6 

1.9

1.3 

1.4 

1.6 

1.9 

1.3

1.1 

1.0 

1.0 

1.2 

.7

.5 

.6 

.5 

.5 

.5

July

0.4 

.7 

.5

d.5 

A. 4

d.3 

d.2 

.2 

.2 

.2

.1

.1 

0 

0 

0

0 

0 

0 

.2 

.2

.2 

.1 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug. Sept.

iHn^imTm Mean VB QII ui

0.6 1.47 90 

.9 2.13 130 

1.6 2.62 161

0 14.0 10,150

2.4 11.1 681 

8.5 32.8 1,890 

11 16.9 1,040 

17 39.6 2,360 

3.2 8.08 497 

.5 2.00 119 

0 -15 8.9 

00 0 

00 0

0 9.60 6,980

?eb. 3 (11:30 p.m.) 438 sec. -ft.; Feb. 26 (1:30 a.m.) 262 sec. -ft.; Apr. 1 

eight record; discharge interpolated.
SAN DIEGUITO RIVER BASIN

San Diegulto River at Lake Hodges, Calif.

Location.- Lat. 33°02'55", long. 117°07'25", in NW-i sec. 18, T. 13 S., R. 2 W., at Lake 

Hodges dam, 5-i miles southwest of Escondido. Altitude of bed of stream at dam, 200 

feet.

Drainage area.- 303 square miles.

Records available.- January 1916 to September 1940.

Remarks.- Diversions for irrigation in San Pasqual Valley, above Lake Hodges. Some pumping fron 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 1939 to September 1940

Month

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

Calendar year 1939. .........

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

Water year 1939-40. .........

Mean 

(second-feet)

2.24

4S.9

41 5

4 err

0

24.9

Run-off 

(acre-feet)

138

35,380

0

16,070

SAN LUIS REY RIVER BASIN 

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

Location.- Lat. 3o°14'15", long. 116°45'50", in NWt sec. 10, T. 11 S., R. 2 E., at 

Henshaw Dam, 5 miles north of Mesa Grande.

Drainage area.- 209 square miles.

Records available.- October 1911 to September 1940.

Average discharge.- 29 years, 44.8 second-feet.

Remarks.- No diversions above station. Lake Henshaw Reservoir (capacity, 203,000 acre- 

 feet), was completed in 1923, and gaging station formerly maintained 1 mile below dam 

was abandoned.

Cooperation.- Records furnished by Sari Diego County Water Co.

Monthly discharge, water year October 1939 to September 1940

Konth

Calendar year 1939 ..........

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

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

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

Water year 1939-40. .........

Mean 

(second-feet)

14.5

31.2

10.6

25.7

Run- off 

(acre-feet)

890

22,580

5,126

2,931

931

769

630

18,660
SAN LUIS REY RIVER BASIN 25 

Sail Luis Rey River at Mbnserate Narrows, near Pala, Calif.

Location.- Water-stage recorder, lat. 33°20'20", long. l]7°08'20", in Mbnserate grant, 

4 miles southwest of Pala, San Diego County.

Drainage area.- 383 square miles.

Records available.- December 1935 to September 1940 (most years, irrigation season only).

Extremes.- mximum discharge during year, 242 second-feet Apr. 1 (gage height, 1.37 feet); 

minimum daily, 1.6 second-feet Aug. 23 and 27.

1935-40: Maximum discharge not determined; minimum, 0.2 second-foot Sept. 10-18, 

1936.

Remarks.- Records good.

Discharge, in second-feet, water year October 1939 to September 1940

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 

90 

51

Oct.

13 

13 

13

12 

12

12 

12 

12 

12 

12

12 

12 

11 

11 

12

12 

12 

12 

12 

12

11 

9 

9 

9 

10

10 

9 

10 

10 

10 

9

HOT.

10 

10 

10 

9 

9

10 

10 

12 

12 

11

10 

10 

10 

10 

10

9

10 

11 

11 

11

11 

11 

12 

12 

12

12 

12 

17 

15

14

Dec.

13 

14 

13 

12 

13

13 

13 

13 

14 

13

13 

14 

13 

13 

13

12 

12 

12 

12 

13

12 

16 

18 

19 

18

17 

17 

16 

16 

17 

16

Jan.

16 

16 

17 

21 

27

28 

35 

49 

66 

61

42 

55 

62 

45 

34

29 

27 

28 

24 

23

22 

24 

27 

32 

26

22 

20 

23 

20 

18 

20

Feb.

23 

45 

62 

160 

95

68 

57 

50 

49 

44

40 

38 

36 

36 

40

31 

31 

29 

29 

30

27 

34 

34 

31 

33

100 

63 

47 

56

Month

Dot 

No? 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

uary. ....

ater year 1939-40. .....................

Mar.

49 

43 

43 

40 

36

34 

33 

34 

30 

31

26 

25 

29 

30

27

26 

25 

22 

23 

21

22 

21 

21 

20 

18

18 

18 

18 

18 

16 

27

Apr.

182 

162 

95 

70 

56

50 

44 

40 

40 

30

30 

25 

27 

23 

19

18 

15 

15 

14 

13

14 

13 

13 

14 

18

20 

29 

22

18 

18

Seoondfoot-days

347 

333 

440

7,409.3

959 

1,418 

844 

1,147 

227.5 

156.0 

76.8 

58.0 

69.7

6,076

Hay

12 

12 

12 

12 

12

12 

9.5 

8 

9 

7.5

7 

6 

6 

4.9 

6

5.5 

4.9 

4.3 

4.9 

7

6.5 

6 

6 

5.5 

5.5

6 

6 

6 

6 

6 

5.5

Mn-rinmm

13 

17 

19

185

66 

160 

49 

182 

1 12 

6 

3.7 

2.4 

2.8

182

June

5.5 

5.5 

6 

6 

6

5.5 

5.5 

6 

6 

6

6 

5.5 

5.5 

5.5 

5.5

5 

5 

5 

5 

5

5 

5 

4.9 

4.7 

4.3

4.3 

4.3 

4.3 

4.3 

3.9

July

3.7 

3.7 

3.5 

3.5 

3.1

2.7 

2.5 

2.5 

2.4 

2.2

2.3 

2.5 

2.5 

2.0 

2.2

2.0 

2.3 

2.3 

2.4 

2.4

2.7 

2.7 

1.9 

1.9 

2.0

2.0 

2.4 

2.2 

2.3 

2.0 

2.0

Minimum

9 

9 

12

2.0

16 

23 

16 

13 

4.3 

3.9 

1.9 

1.6 

1.9

1.6

Aug.

2.0 

2.0 

2.3 

2.3 

1.9

1.8 

1.7 

1.8 

1.8 

1.8

2.0 

1.8 

1.8 

1.9 

2.0

2.0 

2.0 

1.7 

1.7 

1.7

1.8 

1.7 

1.6 

1.9 

1.8

1.7 

1.6 

1.7 

1.9 

1.9 

2.4

Mean

11.2 

11.1 

14.2

20.3

30.9 

48.9 

27.2 

38.2 

7.34 

5.20 

2.48 

1.87 

2.32

16.6

Sept.

2.4 

2.7 

2.4 

2.4 

2.8

2.8

2.8 

2.7 

2.5 

1.9

2.2 

2.2 

2.2 

2.3 

2.3

2.2 

2.2 

2.0 

1.9 

2.0

2.5 

2.3 

2.7 

2.3

1.9

1.9 

2.3 

2.3 

2.3 

2.3

Run-off in 

acre-feet

688 

660 

873

14,700

1,900 

2,810 

1,670 

2,280 

451 

309 

152 

115 

138

12,050

9. 400454 0-41-3

UBITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
26 SAN LUIS KEY RIVER BASIN

San Luis 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 Fallbrook-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 1940; July 1916 to September 1918 (gage

heights and discharge measurements only). April 1912 to January 1916 at site atBonsalL 

(records not equivalent).

Average discharge.- 11 years, (1929-40), 38.6 second-feet.

Extremes.- Maximum discharge during year, 680 second-feet Feb. 3 (gage height, 2.60 feet); 

no flow Oct. 1-3 and July 6 to Sept. 30.

1929-40: Maximum discharge, 18,100 second-feet Ifer. 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 except those for October, November, and December, which are fair. 

Storage at Lake Henshaw; several diversions above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

19

ao

S3.

22

23

84

25

26

27

28

29

SO

31

Oct.

0

0

0

2.9

6.5

5

9.5

10

7

5

4.1

4.1

3.6

3.6

3.2

3.6

4.1

4.1

4.1

5

6.5

4.1

4.6

4.6

6

5

4.1

4.1

3.6

3.6

3.2

HOT.

2.8

4.1

4.6

4.6

4.6

5

5

7

13

10

9

8

8

S

8

8

8

8

8

8

8

7

8

8

8

8

9

12

13

12

-

Deo.

12

12

11

12

11

11

11

12

13

13

14

13

12

12

13

14

14

14

14

14

14

15

18

25

20

18

17

17

17

17

17

Jan.

17

17

17

26

31

66

79

109

132

107

83

90

97

72

63

53

48

46

43

37

35

32

48

108

52

41

36

35

32

31

31

Feb.

59

113

241

279

147

105

90

79

69

64

58

55

50

50

50

44

36

35

33

32

30

36

44

40

41

98

84

61

64

_

-

Month

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

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

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

Water year 1939-4

Mar.

64

52

46

43

41

38

3S

40

38

36

32

30

28

29

28

23

25

26

25

23

22

22

23

24

22

23

25

29

26

21

31

Apr.

270

230

121

90

78

66

58

52

50

46

40

35

29

28

26

26

23

19

17

17

15

13

15

15

16

28

35

31

25

19

Secondfoot-days

447

9,176.3

973

180.5

0

7,429.0

May

15

12

11

11

12

12

12

9

8

6

5

4.6

4.6

4.1

4.1

3.2

2*8

3.2

3.2

4.1

4.1

3.6

3.2

3.2

3.6

3.2

3.2

2.8

2.5

2.1

2.1

Maximum

25

341

64

15

0

279

June

1.5

1.8

1.8

1.5

1.5

1.5

dl.5

dl.5

dl.5

1.5

.9

.9

.7

.7

1.0

1.3

.9

.5

.3

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

-

July

0.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

IHnjimiM

11

0

21

2.1

0

0

Aug.

Mean

14.4

25.1

31.4

5.82

0

20.3

Sept.

Run-off In 

ao re-feet

887

18,200

1,930

358

0

14,740

Peak discharge.- Feb. 3 (10 p.m.) 680 sec.-ft.; Apr. : 

d Doubtful gage-height record; discharge Interpolated
SAN LUIS REY RIVER BASIN 27 

San Luis Rey River at Oceanside, Calif.

Location.- Water-stage recorder, lat. 33°12'40", long. 117°22'40", in NWi sec. 23, T. 11 

S., R. 5 W., hair a mile upstream from State highway bridge at Oceanside. Altitude or 

gage, about 20 feet.

Drainage area.- 557 square miles.

Records available.- April 1912 to September 1914, January 1916, and October 1929 to 

September 1940.

Average discharge.- 13 years (1912-14, 1929-40), 31.8 second-feet.

Extremes.- Maximum discharge during yjar, 745 second-feet Feb. 3 (gage height, 6.20 feet); 

no flow during part of year.

1912-14, 1916, 1929-40: Maximum discharge, 95,600 second-feet Jan. 12, 1916; no 

flow for several months of each year.

Renarks.- Records good except those for periods of doubtful gage-height record, which are 

fair. Storage at Lake Henshaw; several diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

80

8122as

HI

25

86

27

28

29

SO

31

Oct. Hov. Dec. Jan.

0

0

0

0

0

d.2

1.4

36

74

86

65

51

61

51

42

34

31

30

27

25

24

22

24

101

55

42

37

33

30

26

25

Feb.

29

59

170

376

176

139

117

102

83

72

65

57

53

53

57

47

40

39

36

34

34

37

42

45

47

76

94

72

65

_

-

Month

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

Jan 

Feb

Karen. ."...... ... ..

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

toy.......................................

JulT. ................................. ...

Au« 

Sep

list....................................

Water year 1939-4

Mar.

63

57

51

45 ' 42

39

36

36

36

34

33

30

30

29

26

25

25

26

25

24

22

22

21

19

19

18

20

20

20

17

24

Apr.

172

264

150

10S

83

67

55

49

44

39

34

31

27

24

22

21

17

15

13

11

12

10

10

10

9

20

27

26

19

16

-

Seoondfoot-days

0

0

0

8,174.3

1,033.6 

2,316

934

1,405

62.0

0

0

0 

0

5,750.6

*»y

12

10

8.5

7

6.5

5.5

4.2

2.7

dl.9

dl.3

d.8

d.4

d.2

d.2

d.l

d.l

d.l

d.l

d.l

d.l

d.l

d.l

0

0

0

. o * 0

0

o

0

0

Hajdjnun

0

0

0

264

101 

376

63 ' C4

12

0

0

0 

0

376

June July

!H«^iMim

0

0

0

0

0

29

17

9

0

0

0

0 

0

0

Aug.

Mean

0

0

0

22.4

33.3 

79.9

30 .1

46. S

0

0

0 

0

15.7

Sept.

Run-off In 

acre-feet

0

0

0

16,210

2,050 

4,590

g *70Q 'l23

0

0

0 

0

11,400

Peak discharge.- Feb. 3 (12 p.m.) 745 sec.-ft.; Apr. Apr. 2 2 (5 (5 a.m.) a.m.; 300 3OO sec.-ft. sec.-ft 

<1 Doubtful gage-height record; discharge computed on basis of one discharge 

field estimate, and records for station at Eonsall.

easurement, one
28 SANTA mRGARITA 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 1940.

Average discharge.- 17 years, 15.4 second-feet.

Extremes.- Maximum discharge during year, 252 second-feet Apr. 1 (gage height, 4.73 feet); 

minimum dally, 1.2 second-feet Aug. 6-11.

1923-40: Maximum discharge, 17,000 second-feet (estimated) Feb. 16, 1927 (gage 

height, 19.5 feet); minimum, 0.6 second-foot Aug. 17, 1934.

Remarks.- Records poor. No diversions above station.

Cooperation.- Results of 98 discharge measurements furnished by Santa Margarlta ranch.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6 

5.5 

5.5 

5 

5

5 

5.5 

5 

5 

4.8

4.8 

5 

4.8 

4.5 

4.3

4.3 

3.9 

4.1 

4.3 

4.5

4.8 

5 

5 

5.5 

6.5

6 

5.5 

5 

5 

5 

5

Hov.

5 

5 

5.5 

6 

6

6 6

6 5 

6 5 

6 5

6 5 

6 5 

7 

6.5 

6

6 

6 

6.5 

6 

6.5

6.5 

6.5 

6.5 

7 

6.5

6.5 

7 

16 

11 

9

Dec.

8 

8 

8 

8.5 

8.5

8.5 

8.5 

9 

8.5 

8.5

8.5 

8.5 

8.5 

8 

8

8 

8 

8.5 

8.5 

8.5

9 

9 

11 

10 

10

10 

9.5 

9.5 

9 

9 

9

Jan.

9 

10 

10 

10 

10

11 

11 

51 

35 

28

25 

24 

19 

17 

16

13 

13 

12 

12 

12

12 

12

14 

16 

14

12 

12 

12 

10 

9.5 

9.5

Feb.

21 

41 

33 

73 

42

30 

25 

23 

21 

22

19 

17 

16 

16 

16

15 

13 

13 

12 

12

12 

12 

12 

12 

16

* 40 

30 

26 

26

Month

Dot 

Hot 

Dec

C

Jan 

Pet 

Mar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

1

alendar year 1939 ......................

uary

11.....................................

TISt........ ............................

ater year : 939-4

Mar.

24 

21 

19 

18 

16

15

14 

13 

12 

12

12 

11 

11 

10 

10

9.5 

9.5 

9.5 

10 

9.5

9 

9.5 

9.5 

9 

10

10 

10 

9.5 

9.5 

10 

23

Apr.

144 

67 

3£ 

26 

26

26 

24 

21 

17

15

12 

11 

11 

12 

12

12 

11 

11 

9.5 

9

9.5 

9 

9 

"9.5 

11

18 

21 

16

15 

14

Secondfoot-days

155-1 

205.0 

272.0

3,794.4

481.0 

666 

385-0 

647.5 

172.7 

105.6 

60.9 

45.1 

67. 2

3,263.1

May

12 

10 

9.5 

9.5 

9

9 

8.5 

7.5 

5.5 

4.8

4.8 

4.3 

4.3 

3.9 

3.9

3.5 

3.5 

3.5 

3.5 

3.5

3.2 

3.2 

3.2 

3.5 

4.2

4.5 

4.9 

5.5 

5.5 

5-5 

5.5

ttgyj^flpltfl

6.5 

16 

11

57

51 

73 

24 

144 

12 

6 

2.1 

1.9 

3.2

144

June

5.5 

5.5 

5.5 

6 

4.9

4.2 

3.9 

4.2 

3.9 

3.9

4.2 

3.2 

3.2 

3.2 

2.9

2.9 

2.9 

2.6 

2.6 

2.6

2.9 

2.9 

2.9 

2.9 

2.9

2.9 

2.6 

2.6 

2.6 

2.6

July

2.1 

2.1 

2.1 

2.1 

2.1

1.9

2.1 

2.1 

2.1 

1.9

1.9 

1.6 

1.6 

1.6 

1.6

1.9 

1.9 

2.1 

1.9 

1.9

1.9 

2.1 

2.1 

1.9 

1.9

2.1 

2.1 

2.1 

2.1 

2.1 

1.9

HHTi^imim

3.9 

5 

8

1.5

9 

12 

9 

9 

3.2 

2.6 

1.6 

1.2 

1.6

1.2

Aug.

1.6 

1.9 

1.6 

1.4 

1.4

1.2 

1.2 

1.2 

1.2 

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 

1.6 

1.6

1.6 

1.9 

1.9 

1.6 

1.6 

1.4

Keen

5.00 

6.83 

8.77

10.4

15.5 

23.0 

12.4 

21.6 

5.57 

3.52 

1.96 

1.45 

2.24

8.92

Sept.

1.6 

1.6 

1.6 

1.9 

1.9

2.1 

1.9 

1.9 

1.9 

1.9

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

2.4

2.4 

2.6 

2.6 

2 .9 

2.9

2.9 

2.9 

3.2 

2.6 

2.6

Run-off In 

acre-feet

308 

407 

540

7,530

954 

1,320 

764 

1,280 

343 

209 

121 

89 

133

6,470

Peak discharge.- Jan . 8 (13:30 a. 

(2:30 a.m.) 75 see.-ft.; Apr. 1 (6

.) 112 sec.-ft.; Feb. 4 (12:30 

.m.) 252 sec.-ft.

.m.) 141 sec.-ft.; Pet. 20
SANTA MRGARITA RIVER BASIN 29 

Temecula Creek at Railroad Canyon, near Temecula, Calif.

Location.- Water-stage recorder, lat. 33°28'25", long. 117°08'35", in Temecula grant, at 

upper end of Temecula or Railroad Canyon, an eighth of a mile downstream from confluence with Murrieta Creek, and li miles south of Tenecula, Riverside County. Altitude of gage about 950 feet.

Drainage area.- 592 square miles.

Records available.- January 1923 to September 1940.

Average discharge.- 17 years, 27.2 second-feet.

Extremes.- Maximum discharge during year, 7,620 second-feet Jan. 8 (gage height, 7.75 

feet); minimum daily, 4.6 second-feet July 12-15, Aug. 19.

1923-40: Maximum discharge, about 27,600 second-feet Feb. 16, 1927 (gage height, 

15.00 feet); minimum, 0.4 second-foot July 16, 1925.

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

Pumping diversions affect flow considerably during irrigation season.

Cooperation.- Gage-height record and results of discharge measurements furnished by Santa 

Margarita ranch.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

Z 

S 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

11 

11 

11 

11 

11

11

14 

11 

10 

9.5

9 

9 

9.5 

9 

9

9 

9 

10 

9 

9

9.5 

9 

9 

10 

10

10 

10 

9.5 

9 

9 

9.5

.Hov.

1011

1011 11

11

10

11 

11

10

11

10 

9.5 

10 

10

10 

10 

9.5 

9.5 

9.5

9.5 

10

10 

10 

IE

12 

12 

17 

13 

13

Dec.

13 

13 

11 

11 

11

12 

12 

11 

11

11

13 

12 

12 

11 

11

11 

12 

11 

13 

12

IE 

11 

15 

15 

13

12 

12 

12 

12 

12 

12

Jan.

12 

13 

13 

15 

13

18 

17 

1,430 

110 

55

37 

29 

24 

21 

19

17 

16 

16 

15 

15

14 

14 

15 

25 

19

17 

16 

16 

16 

15 

16

Feb.

183 

319 

359 

E42

61

42 

32 

26 

22 

2E

22 

22 

19 

20 

2E

20

19 

17

15 

15

15 

20 

21

19 

27

36 

24 

19 

20

Month

Oot 

Not 

Dec

C

Jan 

Pet 

Mar 

Apr 

Ma, 

Jun 

Jul 

Aug 

Sep

W

alendar year 19£ 9. .....................

ater year 1939-4

Peak discharge. -

(9:30 p.m.) 

Note.- He

measurement

1,280 E 

gage-he 

s and re

Mar.

18 

17 

16 

16 

16

15 

14 

15 

14 

15

14 

14 

13 

13 

12

13 

14 

13 

14 

13

14 

12 

12 

12 

12

11 

11 

11 

9.5 

9.5 

23

Apr.

1E7 

79 

40 

26 

19

17 

15 

14 

13 

13

13

11 

11 

11 

11

12

11 

12 

12 

11

11 

12 

11 

12 

12

22 

15 

14 

13 

12

Secondfoot-days

306.5 

323.5 

372

6,857.5

2,083 

1,700 

426.0 

612 

315.5 

245.5 

174.6 

179.4 

198.5

6,941.5

May

IE 

12 

11 

11 

11

11 

10 

10 

10 

11

11 

11 

11 

9.5 

9

10

10 

11 

11 

11

10 

9.5 

9.5 

9.5 

10

9.5 

9 

8.5 

8 

9 

9.5

Maximum

14 

17 

15

422

1,430 

359 

23 

127 

12 

10 

7.5 

6.5 

8

1,430

June

9.5 

9.5 

9.5 

9.5 

9

9 

10 

10 

9 

S.5

8 

8 

8 

8 

8

S.5 

8.5 

8 

7.5 

7.5

7.5 

7.5 

7.5 

7.5

7.5

7 

7 

6.5 

7 

7

July

7 

7.5 

7-5 

7 

6.5

6 

6 

6 

5.5 

5.5

4.9 

4.6 

4.6 

4.6 

4.6

4.9 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

4.9 

5.5

5.5 

5.5 

5.5 

5.5 

5.5 

5.5

Aug.

5.5 

5.5 

5.5 

5.5 

5.5

6.5 

6.5 

6 

6 

6

6 

6.5 

6.5 

6 

6

6 

5.5 

4.9 

4.6 

4.9

6 

6.5 

6.5 

6 

6

5.5 

5.5 

5.5 

5.5 

5.5 

5.5

Minimum Mean

9 9.89 

9.5 10.8 

11 12.0

6 18.8

12 67 .4 

15 58.6 

9.5 13.7 

11 20.4 

8 10.2 

6.5 8.18 

4.6 5.63 

4.6 5.79 

5.5 6.62

4.6 19.0

Sept.

5.5 

6 

6.5 

7 

6

7 

5.5 

5.5 

5.5 

5.5

5.5 

6 

6 

6 

6.5

6.5

e

7 

8 

7

7.5 

7.5 

7 

7.5 

7.5

7.5 

7 

7 

7 

6.5

Run-off in 

acre-feet

608 

642 

738

13,610

4,140 

3,370 

845 

1,210 

626 

487 

346 

356 

394

13,760

Jan. 8 (9:45 a.m.) 7,620 sec. -ft.; Feb. E (1:30 a.m.) 722 sec. -ft.; Feb. 3 

eo.-ft.; Apr. 1 (2:30 p.m.) 252 sec. -ft. 

ight record Oct. 1-6, Jan. 10-31; discharge computed on basis of discharge 

cords for Murrieta Creek at Temecula.
30 SANTA MARGARITA RIVER BASIN

Santa Margarita River near Fall Brook, Calif.

Location.- Water-stage recorder, lat. 33°24'05", long. 117°15'10", in sec. 12, T. 9 S., 

R. 4 W., 2 miles north of Fall Brook. Altitude of gage, about 350 feet.

Drainage area.- 645 square miles.

Records available.- November 1924 to September 1940.

Average discharge.- 15 years (1925-40), 35.9 second-feet.

Extremes.- Maximum discharge during year, 10,500 second-feet Jan. 8 (gage height, 6.80 

feet); minimum daily, 3.1 second-feet July 24.

1924-40: Maximum discharge, about 33,100 second-feet Feb. 16, 1927 (gage height, 

15.6 feet); minimum, 0.1 second-foot Aug. 30, 1925, Sept. 4, 1926, Sept. 6, 1928, and 

at times during July and August 1929.

Remarks.- Records fair. Several diversions above station.

Cooperation.- Gage-height record and results of most discharge measurements furnished by 

Santa Margarita ranch.

Discharge, in second-feet, water year October 1939 to September

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

12

14 

16 

15 

12 

11

10 

9 

9 

10 

9.5

9.5 

10 

10 

10 

11

10 

9 

9 

10

11

11

10 

1011

9.5 

9

Mov.

11 

11

11 

11 

11

12 

11 

13

14 

13

12 

12 

12 

11 

11

11 

12 

12 

12 

12

12 

11 

11

11 

12

13 

13 

23 

13 

13

Dec.

13 

13 

12

12 

12

12 

12 

13 

14 

15

15 

16 

14 

14 

14

13 

13 

13

13 

12

12 

12

16 

16 

14

14

14 

14 

13 

14 

14

Jan.

14 

13 

14 

19 

16

21 

19 

1,430 

225 

82

51 

44 

37 

29 

23

21 

23 

21 

21

20 

19

35 

26

23 

21 

21 

20 

19 

17

Feb.

151 

434 

395 

473 

113

71 

55 

46 

35 

31

31 

29 

32 

34 

38

30 

29 

27 

25 

22

22 

25 

34 

26 

38

62 

46 

32 

35

Month

Oct 

Nov 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year 193 

nary ,

9................ ......

11.....................................

ater year 1939-4

Peak discharKe.-

(S:30 p.m.) 1,680 s

Mar.

29 

27 

25 

22 

24

22 

22 

22 

22 

23

22 

20 

19 

17 

16

16 

15 

15 

18 

16

16 

17 

16 

14 

14

16 

17 

16 

17 

17 

33

Apr.

132 

107 

55 

42 

32

24 

22 

20 

20 

20

19 

16 

14 

14

12

13 

13

14 

14 

15

14 

14 

14 

12

15

28 

33 

22 

18 

18

Seoondfoot-days

36?' 

418

8,490.5

2,392 

2,421 

605 

806 

354.5 

240.0 

134.8 

149.1 

206-5

8, 431 . 4

May

16 

14 

14 

14 

14

13 

14 

15 

13 

11

11 

11 

11 

11 

11

10 

10 

11

11

11

11 

11 

11 

11 

10

10 

10 

10

9 

8 

7.5

MayJTmiTq

16 

23 

16

445

1,430 

473

132 

16 

10 

7 

5.5 

8.5

1,430

June

8.5 

9 

8.5 

10 

10

9 

9.5 

10 

9.5 

9

8 

8 

7.5 

7.5 

7

8.5 

8 

7 

7 

7

7.5 

7.5 

7 

7.5 

7

7.5 

7.5 

6.5 

6.5 

7

July

7 

7 

6.5 

6 

5.5

4.9 

3.9 

3.9 

3.9

3.7

3.2 

3.7 

4.3 

4.3 

3.9

4.1 

4.3 

4.6 

4.9 

3.9

3.7 

3.3

3.1 

3.3

3.7 

3.9 

4.1 

4.3 

4.3 

4.3

Aug.

4.3 

4.6 

4.3 

4.3 

4.6

4.6 

4.6 

4.6 

4.3 

4.1

4.1 

4.6 

4.9 

5.5 

5.5

5 

5.5 

4.9 

4.6 

4.1

4.3 

4.9 

5 

5

5

5.5 

4.9 

5.5 

5.5 

5.5 

5

Sept.

4.1 

4.6 

6.5

7 

7

7 

6.5 

5.5 

4.9 

4.9

5.5 

7 

6 

6 

5.5

6.5 

7 

8 

8 

8.5

8 

8.5 

8.5 

8.5 

8

8 

8.5 

7 

7 

8.5

Mini* Mean *££%£

9 10.9 669 

11 12.2 728 

12 13.5 829

5 23.3 16,850

13 77.2 4,740 

22 83.5 4,800 

14 19.5 1,200 

12 26.9 1,600 

7.5 11.4 703 

6.5 8.00 476 

3.1 4.35 267 

4.1 4.81 296 

4.1 6.88 410

3.1 23.0 16,720

Jan. 8 (11 a.m.) 10,500 sec. -ft.; Peb. 2 (3:30 a.m.) 870 sec. -ft.; Peb. 3 

ec.-ft.; Apr. 1 (4 p.m.) 182 aec.-ft.
SANTA MARGARITA RIVER BASIN 31 

Santa Margarita River at Ysidora, Calif.

Location.- Water-stage recorder, lat. 33°14'40", long. 117°22'50", In Santa Margarita 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 19E3 to September 1929 and October 1930 to September 1940.

Average discharge.- IE years (1927-E9, 1930-40), 42.6 second-feet.

Extremes.- Maximum discharge during year, 9,650 second-feet Jan. 8 (gage height, 9.10 

feet), from rating curve extended above 500 second-feet; no flow during part of year. 

19E3-29, 1930-40: Maximum discharge, 35,600 second-feet (estimated) Feb. 16, 1927; 

no flow during part of most years.

Remarks.- Records fair except those for high water periods, which are poor. Considerable 

water diverted above station for irrigation on Pauba and Santa Margarita ranches. 

(See p. 33 for records of O'lfeill ditch near Ysido'ra).

Cooperation.- Gage-height record and results of discharge neasurenents furnished oy the 

Santa Margarita ranch.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

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

4.7

4.4

4.4

4.7

13

20

9

6

4.4

4.1

3.0

2.7

2.3

2.3

2.5

2.5

3.0

3.8

4.1

3.2

3.2

4.4

4.7

4.7

4.4

4.1

3.0

3.0

1.9

HOT.

2.1

3.2

4.1

5

5.5

6

6

7.5

17

11

8

7.5

7

7

7

7

7.5

8

7

5

4.7

4.7

4.7

5.5

6

6.5

' 7.5

18

15

12

-

Dec.

11

11

10

9

9

10

10

10

10

8.5

8.5

10

9

8.5

7

5

7.5

8.5

8

8

8.5

8.5

11

24

16

13

13

13

12

12

12

Jan.

12

12

13

27

26

50

52

1,580

502

172

107

99

91

71

57

45

43

39

37

37

33

31

43

100

52

45

37

33

29

29

29

Feb.

57

521

726

1,344

338

185

141

116

99

84

74

65

57

62

71

65

54

50

474-5

45

47

52

45

50

120

99

71

74

-

Month

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

Calendar year 1939 ......................

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

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

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

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

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

Water year I93vw 0...... ................

Mar.

65

57

50

47

41

39

37

37

35

33

33

31

28

24

24

24

24

24

24

24

24

26

24

23

22

23

28

24

20

19

35

Apr.

147

141

94

62

47

37

31

26

26

26

23

20

17

16

17

18

14

16

14

14

14

14

14

16

14

33

76

42

27

21

Secondfoot-days

150-5

223 .0

321.5

9,927.4

3, 533

4,804 

969

1,077

0 

0

0 

0

11,250.2

May

18

16

13

13

12

12

11

11

8.5

7.5

7.5

7.5

7

7

7

6

1.3

1.0

.8

1.3

1.5

1.6

.7

0

0

0

0

0

0

0

0

Maxintum

20

18

24

686

1,580

1,344 

65

147

0

0

0 

0

1,580

June July

Minimum

1.9

2.1

5

0

12

45

19

14

0 

0

0

0 

0

0

Aug.

Mean

4.85

7-43

10.4

27.2

114

166

31 . 3

35.9

5.55

0

0

0

0

30.7

Sept.

Run-off in 

acre-feet

299

442

638

19,690

7,010

9,530

2)l40

342

0

0

0

0

22,320

Peak dlscharge. - Jan. 8 (2:30 p.m. 

2,390 see.-ft.; Apr. 2 (3 a.m.) 210

9,650 sec. -ft. 

ec.-ft.

Feb. 2 (9 a.m.) 853 sec. -ft.; Feb. 4 (3 a.m.)
32 SANTA MARGARITA RIVER BASIN

Murrleta Creek at Temecula, Calif.

Location.- Upper gage: Water-stage recorder, lat. 33°29'00", long. 117°08'50", on 

Temecula grant, 0.6 mile upstream from Temecula Creek and half a mile south of 

Temecula, Riverside County. Altitude, about 1,050 feet.

Lower gage: Water-stage recorder and 24-Inch weir, 100 feet upstream from Temecula 

Creek and 3,000 feet downstream from upper gage.

Drainage area.- 220 square miles.

Records available.- October 1930 to September 1940.

Average discharge.- 10 years, 12.1 second-feet.

Extremes.- Maximum discharge during year, 7,550 second-feet Jan. 8 (gage height, 9.23 

reet); minimum daily discharge, 0.4 second-foot many days.

1930-40: Maximum discharge, 16,800 second-feet (estimated) Mar. 2, 1938 (gage 

height, 13.7 feet at upper gage, ]8.2 feet at lower gage); minimum, 0.2 second-foot at 

times during 1931, 1933, 1934, and 1935.

Remarks.- Records good; collected at site of upper gage.

Cooperation.- Gage-height record and results of discharge measurements furnished by 

Santa Margarita ranch.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

1.6 

1.5 

1.4 

1.4

1.4 

2.2 

1.8 

1.6 

1.5

1.4 

1.2

1.3 

1.2 

1.2

1.2 

1.2 

1.2 

1.4 

1.3

1.2 

1.2 

1.2

1.2 

1.2

1.2 

1.1 

1.1 

1.1 

1.1 

1.1

NOT.

1.1 

1.1 

1.3 

1.3 

1.2

1.2 

1.2

1.3 

1.4

1.1 

1.1 

1.1 

1.2 

1.2

1.1 

1.1 

1.2 

1.2 

1.2

1.2 

1.2 

1.3 

1.3 

1.3

1.3 

1.3 

2.3 

2.1 

1.7

Dec.

1.7 

1.5 

1.5 

1.5 

1.5

1.5

1.4

1.4 

1.4

1.4 

1.4 

1.4 

1.3 

1.3

1.3 

1.4 

1.4 

1.4 

1.4

1.3 

1.5 

1.5 

1.9 

1.7

1.5 

1.5 

1.5 

1.5 

1.6 

1.6

Jan.

1.6 

1.6 

1.6 

1.9 

2.1

2.1 

2.6

81 

29

17 

14 

11 

8 

6.5

5.5 

5 

5 

4.8 

1.4

4.3 

4.1 

4.3 

7 

6.5

5 

4.8 

4.3 

4.1 

3.8 

3.6

Feb.

153 

255 

316 

196 

45

26 

19 

15 

12 

10

10 

9 

7.5 

8.5 

9

6.5 

6.5 

6 

5.5 

5

5 

6 

6.5 

5.5 

8.5

19 

10 

7.5 

7

Month

Oct 

Hov

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

alendar year 193g

il.....................................

ater year 1939-4

Peak dlsoharKe.-

17:15 p.m.) 1,180 a

liar.

6.5 

5.5 

5 

4.4 

3.9

3.8 

3.3 

3.3 

3.3 

3.1

3.1 

2.7 

2.3 

2.2 

2.2

2.1 

1.9 

1.9 

2.2 

2.2

2.1 

2.3 

2.2

1.8 

1.7

1.7 

1.8 

2.2 

1.9 

1.6 

4.4

Apr.

28 

13 

6.5 

5 

4.1

3.3 

2.8 

2.7 

2.3 

2.2

1.8 

1.6 

1.2 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.2 

1.1

1.8 

2.7 

2.2 

1.5 

1.3

Secondfoot-days

41.3 

39.0 

45.6

1,924.1

1,636.5 

1,195.5 

88.6 

97.3 

25.4 

18.8 

14.7 

14.3 

16.4

3,233.4

May

1.1 

1.0 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9

.8 

.8 

.7 

.8

.7 

.7 

.7 

.7 

.8

.8 

.9 

.8 

.8 

.8

.8 

.7 

.7 

.8 

.8 

.6

MflyfTTPTn

2.2 

2.3 

1.9

291

1,380 

316 

6.5 

28 

1.1 

.9 

.6 

.5 

.6

1,380

June

0.6 

.6 

.7 

.7 

.7

.7 

.8 

.8 

.8 

.9

.8 

.8 

.6 

.6 

.6

.6 

.5 

.5 

.5 

.5

.6 

.6 

.5 

.6 

.5

.5 

.6 

.6 

.5 

.5

July

0.6 

.6 

.6 

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4

.4 

.4 

.5

.4 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.4 

.4

Aug.

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.4 

.4 

.4

.4

.4 

.4 

.4 

.4 

.4

.4 

.4

.5 

.5 

.5 

.4

Minimum Mean

1.1 1.33 

1.1 1.30 

1.3 1.47

.4 5.27

1.6 52.8 

5 41.2 

1.6 2.86 

1.1 3.24 

.6 .82 

.5 .63 

.4 .47 

.4 .46 

.4 .55

.4 8.83

Sept.

0.4 

.5 

.5 

.5 

.5

.5 

.6 

.5 

.5 

.5

.6 

.6 

.5 

.5 

 5

.5 

.5 

.6 

.5 

.6

.6 

.6 

.6 

.6

.6

.6 

.6 

.6 

.6 

.6

Run-off in 

acre-feet

82 

77 

90

3,810

3,250 

2,370 

176 

193 

50 

37 

29 

28 

33

6,420

Jan. 8 (9:45 a.m.) 7,550 aec.-ft. 5 Pet. 2 (1:30 a.m.) 632 sec--ft.; Feb. 3 

ec.-ft.; Apr. 1 (6:30 a.m.) 37 aec.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
SANTA MARGARITA RIVER BASIN 33

O'Neill ditch near Ysldora, Calif.

Location.- Water-stage recorder, lat. 33°19'40", long. 117°19'45", 100 feet upstream 

from point of discharge Into O'Nelll Reservoir and 6 miles northeast of Ysldora.

Records available.- October 1930 to September 1940. 

Average discharge.- 10 years, 3.16 second-feet.

Extremes.- Maximum daily discharge during year, 10 second-feet May 21; no flow for 

several months.

1930-40: Maximum daily discharge, 35 second-feet May 24, 1937; no flow during 

parts of each year.

Remarl:s.- Ditch diverts water from Santa Margarlta River. 

Cooperation.- Records furnished by Santa Margarlta ranch.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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

Oot 

Hov 

Dec

C

Jan 

Feto 

Mar 

Apr 

May

JUD

Jul 

Aug 

Sep

H

aler.dar year 1939. .....................

11.....................................

ater year 1939-4

Mar. Apr.

Secondfoot-days

0 

0 

0

730.9

0 

0 

0 

0 

123.0 

153.2 

66.2 

83.9 

120.0

546.3

May

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

3.5 

8 

9 

9 

9.5

10 

9.5 

8.5 

8 

7.5

7.5 

7 

7.5 

7 

6 

5.5

Maximum

0 

0 

0

17.8

0 

0 

0 

0 

10 

8.5 

4.7 

3.5 

4.9

10

June

5.5 

5.5 

6 

6 

6

6.5 

7 

8.5 

7.5 

6.5

5.5 

5.5 

4.6 

4.9 

5

5.5 

5 

4.5 

4.1 

3.6

3.6 

4.4 

4.2 

4.0 

3.9

3.7 

4.2 

3.6 

3.9 

4.3

July

4.4 

4.7 

4.6 

4.3 

3.7

3.0 

2.5

2.2 

1.7 

1.4

.8 

.8 

.9 

1.3 

1.5

1.5 

2.0 

2.3 

2.1 

2.5

2.0 

1.6

1.3 

.9 

.9

1.0 

1.9 

2.0 

2.1 

2.2 

2.1

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

3.6 

.8 

2.0 

2.5

0

Aug.

2.2 

2.4 

2.8 

2.5 

2.3

2.5 

2.5 

2.3 

2.5 

3.2

2.6 

2.7 

3.1 

3.3 

3.0

2.9 

3.2 

2.5 

2.0 

2.3

2.2 

2.5 

2.9 

3.4 

3.5

3.2 

2.9 

2.7 

2.7 

2.7 

2.4

Mean

0 

0 

0

2.00

0 

0 

0 

0 

3.97 

5.11 

2.14 

2.71 

4.00

1.49

Sept.

3.0 

3.6 

4.1 

4.1 

4.0

3.S 

4.1 

3.3 

2.8 

2.5

3.1 

3.9 

3.8 

3.7 

3.7

4.1 

4.3 

4.4 

4.4 

4.8

4.8 

4.9 

4.8 

4.8 

4.7

4.4 

4.1 

4.0 

3.9 

4.1

Run-off In 

acre-feet

0 

0 

0

1,450

0 

0 

0 

0 

244 

304 

131 

166 

238

1,080
SAN JUAN CREEK BASIN

San Juan Creek near San Juan Capistrano, Calif.

Location.- Water-stage recorder, lat. 330 30'50n , long. 117°37'40", in Mission Viejo 

grant, at Ortego State highway bridge, 2i miles east of San Juan Capistrano, Orange 

County. Altitude of gage, about 150 feet.

Drainage area.- 110 square miles.

Records available.- October 1928 to September 1940

Average discharge.- 12 years, 13.9 second-feet.

Extremes.- Maximum discharge during year, 790 second-feet Feb. 3 (gage height, 3.18 feet); 

minimum daily, 0.5 second-foot at times in September.

1929-40: Maximum discharge, 13,000 second-feet Mar. 2, 1938, by slope-area method, 

determined by Corps of Engineers, U. S. Army; no flow at times during most summers.

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

Cooperation.- Results of most discharge measurements furnished by Santa Margarita ranch 

and by Orange County Flood Control District, through M. N. Thompson, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

4.6 

4.6 

4.6

4.6 

4.6 

4.4 

3.9 

3.3

3.0 

2.3 

2.8 

2.8 

2.3

2.3 

2.6 

2.6 

2.6 

2.6

2.1 

2.0 

2.0

2.1 

2.1

2.1 

2.3

2.0 

2.1 

2.0 

1.6

Hov.

1.6 

1.6 

1.6 

1.6 

1.5

1.6 

1.6 

1.7 

1.7 

1.7

1.7 

1.7 

1.7 

1.7 

1.8

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

1.7 

1.6 

1.6

1.5 

1.6 

2.1

1.8 

1.8

Dec.

1.8 

1.8 

2.0 

2.0 

2.1

2.1 

2.1 

2.5 

2.5 

2.5

2.6 

2.5 

2.0 

2.0

2.0

2.0 

2.0 

2.0 

2.0 

2.0

1.8 

1.7 

2.1 

2.5 

2.3

2.3 

2.3 

2.3 

2.1 

2.1 

2.3

Jan.

2.3 

2.3 

2.1 

3.1 

2.3

3.0 

4.4 

114 

21 

11

9.5 

44 

25 

9.5

8

6.5 

5.5 

5.5 

5 

5

4.9 

5 

9.5 

14 

7

6 

5

4.6 

4.9 

4.6 

5.5

Feb.

76 

122 

255 

216 

f 88

f 55 

41 

32 

28 

26

23 

19 

17 

24 

30

22 

20 

19 

18 

17

15 

19 

18 

16 

22

66 

44 

38 

37

Month

Oct 

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

V)

alendar year 193

ater year 1939-4

Peak discharge. -

p.m.) 790 sec. -ft.; 

a No gage-height 

f Discharge corapu

0. .....................

Mar.

32

30 

27 

24 

23

f 22 

f 20 

18 

17 

16

15 

14 

14 

14 

13

13 

12 

12 

13 

12

12 

12 

11 

11 

10

11 

11 

12 

10 

9.5 

39

Apr.

13S 

69 

45 

37 

32

29 

27 

23 

20 

20

19 

17 

16 

a!4 

a!3

a!2 

a!2 

a!2 

a!2 

a!2

a!2 

a!2 

f!2 

12

12

18 

19 

18 

14 

13

Secondfoot-days

94 

52.5 

66.3

2,419.3

360

1,423 

5O9.5 

721 

182.6 

54.6 

35.8 

23.6 

17.1

0

May

12 

11 

10 

10 

10

9.5 

9.5 

9.5 

9 

8

7.5 

7 

6.5 

5

4,4

3.4 

3.2 

3.2 

3.4 

3.9

4.1 

4.1 

3 9 

s'.6 

3.4

3.4 

3.8 

3.0 

2.3 

2.6 

2.5

Maximum

5

2.1 

2.6

130

114 

255 

39 

138 

12 

2.1 

2.6 

1.0 

.7

255

June

2.1

l.s

1.7 

1.8 

1.8

2.0 

2.0 

2.1 

2.1 

2.0

1.7 

1.7 

1.7 

1.7 

1.7

1.7 

1.7 

1.7 

1.7 

1.7

1.7 

1.8 

1.8 

1.8 

1.8

2.0 

2.0 

1.8 

1.8 

1.7

July

1.7 

1.6 

1.6 

1.4 

1.2

1.2

1.1 

1.1 

1.2 

1.1

.9

.9 

.8 

.9 

.9

.9 

.7 

.7 

.8 

.8

1.0 

1.3 

2.3 

2.6

1.8

1.0

.9 

.9 

.8 

.8 

.9

Aug.

1.0 

.9 

.8 

.8 

.8

.8 

.7 

.7 

.8 

.9

.8 

.9 

.8 

.7 

.8

.7 

.7 

.8 

.8 

.3

.7 

.6 

.7 

.7 

.7

.8 

.8 

.7 

,7 

.6 

.6

Minimum Mean

1.6 3.03 

1.5 1.75 

1.7 2.14

.5 6.63

2.1 11.6 

15 49.1 

9.5 16.4 

12 24.0 

2.5 5.89 

1.7 1.82 

.7 1.15 

.6 .76 

.5 .57

.5 9.67

Jan. 8 (12:30 p.m.) 373 sec. -ft.; Feb. 2 (6 p.m.) 164 sec. -ft.; Feb. 

Apr. 1 (12 m.) soo Bee. -ft. 

record; discharge computed on basis of four discharge measurements, 

ted from fragmentary gage-height record.

Sept.

0.6

.7 

.7 

.7 

.7

.6 

.6 

.6 

.5 

.6

.5 

.5 

.5 

.5 

.5

.6 

.6 

.5 

.5 

.5

.5 

.6 

.6 

.6 

.6

.5 

.5 

.5 

.6 

.6

Run-off in 

acre-feet

186 

104 

132

4,800

714 

2,320 

1,010 

1,430 

362 

108 

71 

47 

34

7,020

3 (6:30
SAN JUAN CREEK BASIN -t

Ou

Trabuco Creek near San Juan Capistrano, Calif.

Location^- Water-stage recorder, lat. 33°31'30", long. 117°40'15", in SWi sec. 25, T. 7 

s -> R^ 8 W., on State Highway bridge, M miles north of San Juan Capistrano.

Drainage area.- 36.5 square miles.

Records available.- October 1930 to September 1940.

Average discharge.- 10 years, 6.36 second-feet.

Extremes.- Maximum discharge during year, 358 second-feet Feb. 3 (gage height, 4.15 feet); 

no flow during part of year.

1930-40: Maximum discharge, 9,240 second-feet Feb. 6, 1937; no flow during part of 

each year.

Cooperation.- Record furnished by Orange County Flood Control District, through M. N. 

Thompson, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.8 

0

0 

.5

.7 

.6 

.4 

.3 

.2

.2 

.1 

0 

0

0

0 

0 

1.0 

.6

.2

Dec.

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

Jan.

0

0 

0

0 

0

0 

.5 

45 

.8 

0

0

so

13 

6 

3.6

.1 

0 

0 

0 

0

0 

0

1 6 

4 4 

2 0

1 3 

8 

2 

0 

0 

.1

Feb.

39 

89 

79 

76 

37

24 

15 

12 

8.5 

6

4.9 

3.2 

2.6 

4.9 

6

4.0 

2.6 

1.8

1.8

1.4 

2.0 

1.6 

1.4 

5.5

24 

15 

14 

13

Month.

Oot 

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

»

alendar year 1939......................

ater year 1939-4

Mar.

9 

7.5 

6 

5.5 

5

4.1 

3.8 

3.8 

3.6 

3.3

3.0 

2 9 

2)3 

2.7

2.6 

2.5 

2.4

1.8

1.6 

1.4 

1.2 

1.0

.9

.9 

.9 

.9 

.8 

.8 

15

Apr.

43 

19 

11 

9 

7.5

6.5 

6 

5 5 4)5 3.9

3.6 

3.0 

2.7 

2.4 

2.3

2.8 

2.1

2.0

1.8

1.7 

1.6 

1.5 

1.4 

1.3

3.8 

4.5 

3.2 

2.8 

8.0

Seccndfoot-days

0

5.6 

.1

611.45

99.4 

436.7 

102. & 

163. S 

21.7 

.49 

0 

0 

0

830.29

Hay

1.8 

1.8 

1.8 

1.6 

1.6

1.5 

1.4 

1.3 

1.1 

.9

.8 

.7 

.6 

.6 

.6

.5 

.5 

.4

.3

.8 

.2 

.2 

.8 

.1

.1 

.1 

.1 

.1 

.1 

.1

MaxunJBi

0 

1.0 

.1

88

45 

79 

15 

43 

1.8

0 

0 

0

79

June

ieO.016

July

Minimum

0 

0 

0

0

0

1.4 

.8 

1.3

.1

0 

0 

0

0

Aug.

Mean

0 

.19 

.003

1.68

3.81 

15.1 

3.31 

5.46 

.70 

.016 

0 

0 

0

2.27

Sept.

Run-off in 

acre-feet

0 

11 

.2

1,210

197 

866 

203 

325 

43 

1.0 

0 

0 

0

1,650

e Discharge estimated.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
36 ALISO CREEK BASIN

Aliso Creek at El Toro, Calif.

Location.- Water-stage recorder, lat. 33°37'15", long. 117°41'20", in Canada de Los 

Alisos 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 1940.

Average discharge.- 10 years, 0.89 second-foot.

Extremes.- Maximum discharge during year, 520 second-feet Feb. 3; no flow for several 

montns.

1930-40: Maximum discharge, 1,950 second-feet Feb. 6, 1937; no flow during most 

of each year.

Cooperation.- Records furnished by Orange County Flood Control District, through M. N. 

Thompson, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

S3

24

25

26

27

28

29

30

31

Oct. Hov.

0

0

0

o

0

o

0

0

0

o

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

14

0

0

0-

Dec. Jan.

0

0

O

o

0

0

0

14

.8

.1

0

0

0

0

0

0

0

0

0

0

0

0

8.5

0

0

0

0

0

0

0

0

Feb.

18

7

34

O

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7

0

0

0

0

-

Month

Calendar year 1939. .....................

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

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

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

July ............... 7 ......................

Water year 1939-40...... ................

Mar.

0

o

0

0

0

0

0

0

0

0

o

o

o

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

11

Apr.

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

1.1

2.0

0

0

0

Secondfoot-days

0

14

0

127.4

23.4

66

11

10.1

0

0

0

0

0

124.5

May

Mq-g^ jm-m\

0

14

0

37

14

34

11

7

0

0

0

0

0

34

June July

U^p^imim

0

0

0

0

0

0

0

o

0

0

0

0

0

0

Aug.

Mean

0

.5

0

.35

.75

2.3

.4

.34

0

0

0

0

0

.34

Sept.

Run-off in 

acre-feet

0

28

0

253

46

131

22

20

0

0

0

0

0

247

9-252 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
SANTA ANA RIVER BASIN 37 

Santa Ana River near Mentone, Calif.

Location.- Water-stage recorder, lat. 340 06'4011 , long. 117°06'00", in SWl 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 1896 to September 1940.

Average discharge.- 42 years (1896-1909, 1910-15, 1916-40), 40.4 second-feet. Average 

combined discharge of Santa Ana River and canals, 39 years (1896-98, 1902-15, 1916-40), 

92.7 second-feet.

Extremes (river only).- Maximum discharge during year, 1,390 second-feet Jan. 8, from 

rating curve extended above 650 second-feet by logarithmic plotting and checked by 

velocity-depth studies; no flow at times in August and September.

1896-40: Maximum discharge, 52,300 second-feet Mar. 2, 1938, by slope-area 

method; no flow at times in several years.

Remarks.- Records fair. 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 next page.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

82

83

84

25

26

87

28

29

30

31

Oct.

0.8

1.6

4.2

3.0

4.8

3.7

6.5

3.7

5.5

4.2

1.2

8.0

.4

4.8

3.1

3.4

1.9

.5

3.8

1.7

1.2

2.5

7

5.5

3.0

1.0

1.6

.5

1.1

.3

4.2

HOT.

2.1

1.9

2.3

1.6

1.7

1.4

1.0

1.6

2.1

1.4

1.2

1.1

1.0

3.9

1.7

1.3

1.1

1.0

.8

. .9

.8

.7

.6

.6

.6

.6

1.2

14

4.0

4.9

-

Dec.

1.7

1.1

.9

.8

.7

.6

.6

.5

.6

.5

2.4

.8

.8

.7

.7

.6

.6

.6

.5

.4

.4

.3

6.5

4.6

1.4

1.3

.9

.5

.6

.6

.6

Jan.

0.6

.6

.6

8

6.5

3.5

16

d512

a90

44

39

46

29

a!6

a!2

a9

a7

a5

a5.5

6

9

5

5.5

13

7

7.5

8

7

7

6

5.5

Feb.

24

27

43

39

23

22

17

13

15

12

12

11

10

14

13

7

6

6

5.5

5.5

5

7.5

12

8

d!02

d364

99

21

23

-

Month

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

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

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

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

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

Water year 1939-4 0. .....................

liar.

17

14

12

10

S.5

S

7

7

6

8

8

7

5.5

5

4.8

4.5

4.2

6.5

8.5

5.5

5.5

4.9

4.8

4.3

5

5.5

7.5

6.5

4.5

4.2

79

Apr.

126

50

32

23

15

11

9

8

7

10

8

7

6

6

19

19

9

6

6

6

6

5.5

5.5

5

5.5

31

14

9.5

8.5

7

Seoondfoot-days

88.6

59.1

33.8

3,248.6

936.8

966.5

289.1

480.5

76.8

19.2

8.7

7 8

l!44

2,968.34

May

6.5

6

6

5.5

5

5

5

4.2

3.6

2.9

2.0

1.7

1.7

1.4

al.4

al.3

al.3

al.2

al.2

al.2

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

Mny^ffimm

7

14

6.5

248

53.2

364

79

126

6*5

1.0

.3

.3

.1

518

June

1.0

1.0

1.0

.9

.9

.8

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.4

.4

.4

.4

July

0.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Minimum

0.3

.6

.3

.3

.6

5

4 5' 2

1.1

.4

.2

.1

-

Aug.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

Mean

2.86

1.97

1.09

8.90

3.02

32.6

9 33

ie!o

2.48

.64

28

.25

.048

8.11

Sept.

0.1

.1

.1

.1

» .04

-

Rim-off in 

acre-feet

176

117

67

6,440

1,860

1,920 

573

953

152

3S

17

15

2.9

5,890

peak discharge.- Jan. 8 (8 a.m.) 1,390 sec.-ft.; Feb. 26 (1»30 a.m.) 830 sec.-ft.; Mar. 31 (11 

p.m.) 239 sec.-ft.

a Ho gage-height record; discharge computed on basis of probable shape of recession curve, rainfall records, and records for City Creek near Highland, or interpolated.

d Doubtful gage-height record; discharge computed from records for auxiliary recorder.

Note.- Discharge less than 0.1 second-foot Sept. 5-30, no figures of daily discharge given.
38 SANTA ANA. RIVER BASIN

Combined discharge, in second-feet, of Santa Ana River and canals near Mentone, Calif., water year 

October 1939 to September 1940

Day

1

a

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

50

48

48

48

54

50

52

53

46

46

57

66

68

75

79

79

76

76

77

85

82

84

95

98

89

86

84

82

81

76

66

HOT.

75

78

78

78

70

71

71

75

75

66

66

61

63

64

70

66

69

69

69

71

74

77

74

71

74

70

63

84

61

49

-

Dec.

55

51

51

46

46

46

43

42

43

48

48

49

49

49

49

49

49

49

50

53

58

58

72

54

46

43

43

46

46

49

45

Jan.

43

43

45

65

54

52

64

524

139

117

105

134

91

77

66

55

57

54

52

50

49

50

50

55

49

50

48

45

49

43

46

Feb.

76

83

99

115

89

86

79

74

71

68

65

64

60

67

58

55

54

54

54

50

50

56

62

57

155

364

157

108

108

-

Month

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

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

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

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

Water year 1939-4 0................ ......

Mar.

99

91

84

79

78

72

71

71

70

66

66

63

58

58

R8

58

52

54

58

56

56

55

58

53

53

58

64

60

60

58

115

Apr.

191

136

116

104

97

91

89

82

81

79

77

76

72

72

91

91

73

72

72

70

70

70

70

69

66

110

85

78

74

73

-

Seoondfoot-days

2,156

2,102

1,525

29,182

2,421

2,538

2.052

2,597

2,247

2,015

2,248

2,277

2,154

26,332

May

70

66

66

68

63

63

63

64

72

74

78

81

85

87

87

87

82

82

69

65

70

66

71

71

71

74

74

74

69

66

69

Mn-yjimim

98

84

72

337

524

364

115

191

87

78

81

84

81

524

June

69

66

70

68

70

65

65

62

62

65

65

70

78

73

73

73

73

68

60

62

60

60

61

69

68

70

70

70

65

65

-

July

68

73

70

70

73

73

70

73

70

78

76

81

76

76

81

81

81

81

68

65

68

62

65

73

73

73

73

73

68

68

68

IH TI \imim

46

49

42

42

43

50

52

66

63

60

62

65

60

42

Aug.

68

76

78

73

70

70

73

70

73

76

78

78

76

84

84

81

81

76

68

68

65

68

65

73

70

73

73

73

73

70

73

Mean

60.5

70.1

49.2

79.9

78.1

87.5

66.2

86.6

72.5

67.2

72.5

73.5

71.8

71.9

Sept.

76

78

76

73

73

65

65

68

73

73

81

78

81

78

81

76

76

70

73

68

65

65

60

68

60

68

73

70

70

73

~

Run-off in 

acre-feet

4,280

4,170

3,020

57,890

4,800

5,030

4,070

5,150

4,460

4,000

4,460

4,520

4,270

52,230

9-232 February 1936

UNITED 6TATES DEPARTMENT OP THE INTERIOR 

Geological Survey
SANTA ANA RIVER BASIN 59 

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

Lccatlon.-r Water-stage recorder, lat. 34°04'00", long. 117°17'45", in San Bernardino 

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 Bernardino, San Bernardino 

County. Altitude of gage, about 970 feet.

Records available.- March 1939 to September 1940.

Extremes.- Maximum discharge during the year,'2,960 second-feet Jan. 8 (gage height,

4.90 feet), from rating curve extended above 1,000 second-feet by logarithmic plotting; 

no flow on many days.

1939-40: Maximum discharge, that of Jan. 8, 1940; no flow on many days in 1940.

Remarks.- Records fair. Practically entire flow during the period July 2 to Sept. 9 

was pumped water turned into channel above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6

7 

8 

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

.4 

.4 

.4 

.4

.3 

.6 

.5 

.5

.4

.3 

.4 

.3 

.4 

.5

.4 

.5 

.4 

.5 

.5

.5 

.6 

.8 

.8 

1.0

1.2 

1.2 

1.0 

1.0 

1.0 

.8

HOT.

1.0 

1.0 

1.2 

1.2 

1.2

1.0 

1.2 

1.8 

1.0 

1.0

1.0 

1.0 

1.2 

1.0 

.8

.S 

1.2 

1.5 

1.5 

1.2

1.2 

1.5 

1.5 

1.5 

1.2

1.2 

2.9 

25 

8 

5.5

Dec.

5.5 

5 

5 

4.5 

3.4

2.5 

2.5 

2.5 

2.2 

3.4

3.4 

2.5 

a2.6 

a2.8 

3.0

3.0 

3.0 

3.4 

2.5 

3.0

3.4 

3.0 

5.5 

4.5 

3.0

3.4 

3.0 

2.2 

2.5 

2.5 

2.5

Jan.

2.5 

2.5 

a2.5 

7.5 

a6.5

5.5 

22 

596 

117 a35'

19 

16 

11 

11 

9

7.5 

5.5 

5.5 

5 

4.0

5 

5 

27 

24 

19

16 

a!4 

13 

a!2 

all 

alO

Feb.

58 

a!5 

52 

a34 

12

13 

14 

19 

19 

19

IS 

21 

19 

24 

18

16 

13 

11 

10 

9

8 

10 

9 

9 

32

179 

42 

30 

25

Month

Dot

»OD

Dec 

C

Jan 

Fell 

Mar 

Apr

Jui 

Jul 

Aug

Sep

H

 landar year

y. .....................................

ater year 1939-4

Peak discharge. -

230 sec. -ft.; Feb.

0......................

Mar.

22 

17 

18 

12 

12

11 

11 

11 

9.5

S

8 

7 

6 

5.5 

5.5

5.5 

4.7 

4.1 

3.8 

3.5

3.5 

3.3 

3.3 

3.0 

2.8

2.8 

2.8 

2.8 

2.S 

2.6 

16

Apr.

21 

8 

3.5 

3.3 

3.5

2.S 

2.4 

2.2 

2.0 

1.7

1.7 

1.4 

1.3 

1.3 

1.7

1.7 

1.7 

1.4 

1.3 

1.4

1.4 

1.6 

1.4 

1.6 

2.6

8 

3.8 

3.5 

3.3 

3.3

Seoondfoot-days

18.5 

72.3 

101.2

-

1,046.5 

758 

224.8 

95.8 

88.4 

22.3 

306.0 

259.5 

22.3

3,015.6

May

3.0 

3.0 

2.3 

2.8 

3.0

3.0 

2.8 

2.8 

2«S 

2.8

2.6 

2«S 

2.4 

2.6 

2.8

2.8 

3.0 

3.5 

3.5 

3.3

2.8 

2.2 

2.4 

2.6 

2.6

2.8 

3.3 

3.0 

3.0 

2.8 

2.8

Maximum

1.2 

25 

5.5

-

596 

179 

22 

21 

3.5 

3.5 

12 

9.5 

4.7

596

June

3.3 

3.5 

3.0 

2.4 

2.0

1.8 

2.4 

1.5 

a. 5 

a. 3

a.l 

a.l 

a.l 

a.l 

a.l

a.l 

a.l 

a.l 

0 

0

0 

0 

0 

0 

a. 2

a. 3 

a. 2 

a.l 

0 

0

July

0 

a5.5 

a!2 

a!2 

a!2

a!2 

a!2 

a!2 

12 

11

11 

11 

11 

10 

10

10 

10 

10 

10 

10

10 

10 

10 

10 

9.5

8.5 

8.5 

9 

9 

9 

9

Minimum

0.3 

.8 

2.2

-

2.5 

8 

2.6 

1.3 

2.2 

0 

0 

5 

0

0

Aug.

9.5 

9.5 

9.5 

9

9

9 

9.5 

9.5 

9.5 

9

S.5 

8.5 

8 

8 

8

8 

a8 

a8 

a8 

a7.5

7.5 

7.5 

7.5 

7.5 

8

8 

8.5 

9 

9.5 

8 

5

Mean

0.60 

2.41 

3.26

-

33.8 

26.1 

7.25 

3.19 

2.85 

.74 

9.87 

6.37 

.74

8.24

Sept.

4.7 

4.0 

3.4 

3.1 

2.5

2.1 

1.4 

.7 

.4 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Run-off in 

acre-feet

37 

143 

201

-

2,080 

1,500 

446 

190 

175 

44 

607 

515 

44

5,980

Jan. 8 (9 a.m.) 2,960 sec. -ft.; Feb. 1 (5 p.m.) 290 sec. -ft.; Feb. 3 (4:30 p.m.) 

26 (5 a.m.) 380 sec. -ft.; Har. 31 (11 p.m.) 106 sec. -ft.

a No gage-height record; discharge for Dec. 13, 14, Jan. 3, 5, 27, June 11-18, July 2-8, Aug. 17- 

20 interpolated or extrapolated; that for Jan. 10, 29-31, Feb. 2, 4, June 9, 10 computed from the 

probable shape of recession curve and records for Santa Ana River near Mentone and Warm Creek near 

Colton; and those for June 25-28 computed on basis of one field estimate of flow and ground-water 

fluctuations in recorder well.

BSHSD STATES DEPARTMENT OF THE INTERIOR 

9-832 February 1936 Geological Survey .,»«»..,»«,»««, ,.,.-0.. ,
40 SANTA ANA RIVER BASIN

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

Location.- Water-stage recorder, lat. SS^S'OO", long. 117°26'30", in Jurupa grant, half 

a mile downstream fron Union Paciflo Railroad bridge and 3 miles north of Arlington, 

Riverside County. Altitude of gage, 690 feet.

Records available.- January 1929 to September 1940.

Average discharge.- 10.years (1929-37, 1939-40), 46.4 second-feet.

Extremes.- Maximum discharge during year, 3,000 second-feet Jan. 8, computed on basis of 

records for Chino Creek and Santa Ana River stations near Prado; minimum daily, 22 

second-feet June 29.

1929-40: Maximum discharge, 100,000 second-feet Mar. 2, 1938, by slope-area 

method; minimum, 30 second-feet Aug. 3, 1937.

Remarks.- Records fair. Several diversions above station.

Cooperation.- Results of one discharge measurement furnished by Corps of Engineers, U. S. 

Army.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4. 

S

6

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

a45 

a49 

a45 

41 

37

37 

35 

31 

31 

30

30 

30 

30 

30 

30

31 

31 

30 

29 

29

29 

29 

28 

28 

30

34 

30 

29 

28 

30 

28

Nov.

28 

29 

30 

30 

30

30 

31 

30 

31 

32

32 

32 

32 

31 

d31

d31 

d32 

d32 

132 

32

34 

36 

37 

37 

38

36 

38 

41 

38 

36

Dec.

35 

35 

35 

35 

135

d35 

d35 

136 

d36 

d36

36 

d36 

d36 

36 

37

37 

37 

37 

36 

37

37 

35 

38 

35 

35

36 

d36 

d36 

d36 

d35 

d35

Jan.

35 

35 

37 

37 

35

38 

37 

6758

ellO 

e56

d56 

d55 

155 

154 

54

54 

55 

56 

53 

50

48 

48 

63 

58 

54

d50 

d47 

d44 

41 

d42 

44

Peb.

146 

82 

168 

97 

61

56 

53 

47

45 

d44

d42 

41 

40 

40 

42

d41 

40 

38 

38 

d39

139 

d40 

140 

41 

47

214 

58 

53 

51

Month

Dot 

Nor 

Dec

C

Jan 

Peb 

Mar 

Apr 

Hay 

Jim 

Jul 

Aug 

Sep

W

nary

il. ....................................

ater year 1939-4

Mar.

48 

d46 

d44 

42 

142

d42 

d41 

d41 

41 

41

41 

41 

d40 

d40 

d39

<139 

d38 

38 

38 

d39

141 

42 

42 

44 

d44

144 

d44 

44 

47 

48 

60

Apr.

237 

81 

48 

42 

41

42 

41 

41 

40 

d41

42 

d41 

140 

d39 

38

41 

37 

38 

36 

36

d35 

35 

35 

d36 

36

48 

48 

44 

42 

41

Secondfoot -days

1,004 

989 

1,112

13,956

2,259 

1,783 

1,321 

1,442 

992 

856 

819 

902 

863

14,342

May

d40 

d39 

d37 

136 

35

35 

37 

34 

34 

31

31 

31 

28 

d29 

d30

d30 

30 

31 

32 

30

31 

31 

29 

30 

d30

d30 

30 

31 

30 

29 

31

Mflyj-npvn

49 

41 

38

211

758 

214 

60 

237 

40 

34 

, 30 

34 

32

758

June

32 

34 

31 

30 

31

30 

30 

31 

29 

31

34 

31 

32 

30 

29

30 

30 

29 

28 

28

28 

27 

26 

25 

24

24 

23 

23 

22 

24

July

23 

24 

26 

25 

125

26 

23 

24 

25 

24

25 

25 

25 

25 

25

26 

26 

26 

27 

27

28 

29 

27 

28 

29

29 

29 

29 

30 

30 

29

Minimum

28 

28 

35

24

35 

38 

38 

35 

28 

22 

23 

26 

27

22

Aug.

29 

29 

29 

29 

28

29 

28 

28 

28 

28

28 

28 

29 

29 

29

28 

26 

28 

29 

29

30 

30 

31 

30 

31

34 

29 

29 

29 

30 

31

Mean

32.4 

33.0 

35.9

38.2

72.9 

61.5 

42.6 

48.1 

32.0 

28.5 

26.4 

29.1 

28.8

39.2

Sept.

30 

30 

30 

30 

30

d30 

d29 

d28 

28 

28

28 

28 

28 

d28 

d28

28 

28 

28 

27 

28

28 

28 

27 

28 

28

29 

30 

30 

31 

32

Run-off in 

acre-feet

1,990 

1,960 

2,210

27,680

4,480 

3,540 

2,620 

2,860 

1,970 

1,700 

1,620 

1,790 

1,710

28,450

Peak discharge.- Jan, 8 (9:30 a.m.) 3,000 sec.-ft.j Feb. 3 (8 p.m.) 562 sec.-ft.5 Feb. 26 (8 a.m 

510 sec.-ft.; Apr. 1 (3 a.m.) 492 sec.-ft.

a No gage-height record; discharge computed on basis of one measurement and reeorls for station 

at Hamner Avenue near Corona.

d Doubtful or no gage-height record; liseharge interpolated.

e Doubtful gage-height record; discharge computed on basis of records for Chino Creek anl Santa 

Ana River near Prado.

Geological Surrey " » " "»«»«» "« ' > -» »-~
SANTA ANA RIVER BASIN 41 

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

Location.- Water-stage recorder, lat. 33°56'50", long. 117°33'00", in Jurupa grant, 1 

mile upstream from Hamner Avenue and 5 miles north of Corona, Riverside County.

Records available.- May 1930 to November 1940 (irrigation seasons only).

Remarks.- Records fair. See list of miscellaneous measurements at end of this report for 

measurements made between irrigation seasons.

Cooperation.- Results of 29 discharge measurements furnished by Orange County Flood Control District, through M. N. Thompson, chief engineer.

charge, in second-feet, 1939-40

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

42

53

45

40

3S

35

36

36

37

&

31

28

26

31

27

27

28

26

26

27

23

24

27

34

36

37

37

32

30

34

33

Hov.

33

33

32

36

40

42

42

46

43

39

39

37

39

40

39

37

40

40

39

40

39

39

42

40

42

39

37

37

40

40

-

May

38

36

36

38

37

36

35

32

31

26

28

29

29

26

26

27

28

30

31

29

28

28

27

29

30

28

28

29

29

27

27

June

28

27

26

2S

27

26

26

25

22

26

28

28

26

25

26

25

24

23

20

18

20

19

19

18

18

19

21

20

21

21

-

July

22

23

23

22

23

21

20

18

17

18

17

18

18

21

20

19

21

23

22

21

21

18

18

22

20

22

20

23

20

20

21

Month

1939

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

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

1940 

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

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

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

The period. .............................

Aug.

IS

18

IS

18

18

21

21

21

21

21

18

20

22

23

22

21

23

22

22

20

21

22

22

21

20

21

21

21

19

19

19

Sept.

20

22

21

19

22

22

22

21

22

21

20

18

18

20

22

22

24

22

22

22

24

25

27

24

25

23

23

22

24

23

-

Oct.

25

25

27

28

28

28

26

28

27

27

24

25

27

27

28

25

25

22

22

21

24

24

23

23

31

43

36

34

33

33

33

£££. 

1,020 53

1,171 46

938 38

700 28

632 23

634 23

662 27

851 43

1,201 58

-

Nov.

33

32

33

33

32

32

32

33

32

32

32

36

41

48

41

40

46

56

53

58

58

50

41

38

41

41

37

38

41

41

-

llfifHimynT

23

32

26

18

17

18

18

21

32

-

Run-off in 

*ean acre-feet

32.9 2,020

39.0 2,320

30.3 1,860

23.3 1,390

20.4 1,250

20.5 1,260

22.1. 1,310

27.5 1,690

40.0 2,380

11,140

400454 O - 41 - 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 1940 (irrigation seasons only).

Remarks.- Records fair. See list of miscellaneous measurements at end of this report 

ror measurements made between irrigation seasons.

Cooperation.- Results of 27 discharge measurements furnished by Orange County Flood Control District, through M. N. Thompson, chief engineer.

Discharge, in second-feet, 1939-40

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.

55

63

60

54

55

58

55

56

54

53

54

53

54

51

49

48

48

47

47

50

46

46

46

51

51

49

55

47

48

46

47

HOT.

49

49

51

51

5S

56

56

61

5S

63

64

63

61

60

60

60

59

58

58

56

5S

58

58

58

eo

61

64

63

63

67

May

a63

61

61

a60

a5S

57

54

54

52

49

48

49

48

48

4S

48

52

53

53

49

a49

a49

a4S

a4S

48

47

45

45

45

43

45

June

41

41

41

42

44

45

46

48

47

46

47

a46

a 46

a45

44

48

45

a 43

a41

a39

a37

36

36

35

32

a33

a33

34

36

34

July

33

36

a36

a36

a36

30

29

30

a30

a29

a29

a28

2S

29

29

a50

a31

a32

a32

33

35

31

29

30

30

30

31

32

30

32

32

Month

1939 

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

1940 

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

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

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

The period. .............................

Aug.

32

32

31

30

29

29

ZS

30

30

30

27

29

30

30

30

31

32

31

30

30

28

27

2S

29

30

30

30

29

2S

28

2S

Se

Secondfoot-days

1,594

1,761

1,577

1 231

968

916

952

1*823

-

pt.

30

32

30

30

30

30

30

30

30

30

30

30

30

30

30

33

32

31

34

35

34

35

36

34

33

31

31

30

35

36

-

Oct.

36

36

38

39

3S

39

39

41

43

41

40

41

42

43

44

42

43

37

39

39

41

42

42

41

52

70

55

50

49

48

47

Ha** *,

63

67

63

4S

36

32

36

70

S4

-

Nov.

4S

4S

49

4S

49

49

50

51

51

51

50

52

65

70

58

62

76

S4

70

77

76

70

62

62

65

66

60

64

70

70

-

HxniflEum

46

49

43

32

23

27

30

36

4S

-

if.... Rim-off in ltean acre-feet

51.4 3,160

5S.7 3,490

50.9 3,130

41.0 2,440

31 £ 1 920

29*5 lyS20

43.1 2^650

60. S 3,620

17,470

Doubtful or no gage-height record; discharge computed, from records for station below Prado dam.
SANTA ANA RIVER BASIN 43

Santa Ana River below Prado Dam, 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 Dam and 1 mile southwest of Prado, Riverside 

County. Altitude of gage, about 460 feet.

Records available.- March to September 1940. May 1930 to November 1939 (irrigation

seasons only), at site half a mile downstream, published as Santa Ana River at Atchinson, Topeka & Santa Fe Railway bridge, near Prado.

Extremes.- Maximum discharge during period, 986 second-feet Apr. 1 (gage height, 2.07 

feet); minimum daily, 38 second-feet July 84-26 and Aug. 7, 8, 11, 1£.

Remarks.- Records good. During August and September 107 and 145 acre-feet, respectively, 

were pumped from the spillway excavation at Prado Dam and released down the old river 

channel, which enters the present channel between this station and that near Prado. 

Diversions and regulation above station.

Cooperation.- Results of 30 discharge measurements furnished by Orange County Flood Control District, through M. N. Thompson, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14 

IS

16 

17 

IB 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. HOT. Dec. Jan. Feb.

Month

Oot 

HOT 

Dec

C

Jan 

Peb 

Mar 

Apr 

to, 

Jim 

Jul

f* 

Sep

T

alendar year

le T>erlo i. .............................

Mar.

94 

102

96 

98 

98 

98 

102.

107 

107 

98 

94 

90 

146

Apr.

432 

170 

130 

118 

112

112 

107 

102 

102 

94

90 

94 

90 

90 

94

90 

82 

78 

75 

75

82 

82 

82 

82 

86

107 

102 

9S 

94 

90

Secondfoot-days

1,332 

3,242 

2,162 

1,735 

1,359 

1,290 

1,383

-

May

86 

82 

78 

78 

78

78 

82 

75 

72 

69

66 

72 

69 

69 

69

69 

72 

72 

72 

66

69 

66 

63 

63 

63

60 

63 

63 

60 

58 

60

Maximum

146 

432 

86 

72 

51 

46 

53

-

June

60 

58 

58 

63 

60

60 

66 

69 

72 

69

66 

66 

63 

63 

60

63 

61 

56 

58 

53

51 

51 

49 

51 

49

46 

46 

46 

49 

51

July

49 

49 

49 

51 

49

44 

42 

44 

42 

42

42 

42 

42

44 

44

44 

44 

44 

44 

46

46 

44 

40 

38 

38

38 

42 

42 

42 

46 

46

Minimum

90 

75 

58 

46 

3S 

3S 

42

-

Aug.

44 

46 

46 

42 

40

40 

38 

38 

40 

40

3S 

38 

40 

40 

42

44 

42 

42 

44 

44

40 

40 

42 

42 

42

42 

44 

44 

42 

42 

42

Mean

102 

108 

69.7 

57.8 

43.8 

41.6 

46.1

-

Sept.

44 

46 

46 

44 

44

44 

44 

44 

44 

42

42 

44 

44 

44 

44

46 

46 

44 

46 

49

46 

49 

53 

51

51

49 

49 

44 

49

51

Run-off in 

acre-feet

2,640 

6,430 

4,290 

3,440 

2,700 

2,560 

2,740

24,800
44 SANTA ANA RIVER BASIN

Santa Ana River near Prado, Calif.

Location.- V/ater-stage recorder, lat. 33°52'05", long. 117°40'20", 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 September 1940. 

Average discharge.- 21 years, 145 second-feet.

Extremes.- Maximum discharge during year, 4,060 second-feet Jan. 8 (gage height, 4.55 

feet); ninimum daily, 36 second-feet July 13.

1919-40: Maximum discharge, 100,000 second-feet (estimated) Mar. 3, 1938 (gage 

height, 17.32 feet, from floodmarks in gage well); minimum, 25 second-feet Aug. 18, 

1929, Aug. 24, 1936.

Remarks.- Records fair. Diversions and regulation above station.

Cooperation.- Results of 60 discharge measurements furnished by Orange County Flood Control District, through M. N. Thompson, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

85 

92 

87 

80 

74

74 

78 

78 

72 

67

59 

61 

63 

63 

59

59 

61 

61 

61 

65

59 

59 

63 

67 

67

69 

69 

69 

67 

61 

63

HOT.

67 

67 

69 

78 

83

85 

87 

90 

90 

83

85 

83 

80 

80 

78

76 

80 

80 

85 

83

85 

78 

80 

76 

78

76 

78 

74 

74 

78

Dec.

80 

83 

83 

SO 

80

83 

7S 

76 

80 

85

92 

94 

94 

90 

90

94 

92 

92 

90 

90

90 

83 

92 

94 

92

92 

94 

90 

85 

87 

83

Jan.

S7 

90 

104 

120 

107

107 

110 

1,250 

389 

230

181 

155 

133 

118 

118

118 

116 

116 

118 

114

114 

112 

112 

133 

114

114 

110 

110 

114 

116 

121

Feb.

240 

340 

319 

356

195

a!65 

a!45 

alSO 

121 

125

125 

121 

112 

118 

116

114 

110 

110 

101 

98

98 

105 

105 

105 

128

336 

193 

128 

118

Month

Dot 

HOT 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

8ep

«

11.....................................

ater year 1939-4

Mar.

115 

107 

97 

97 

102

104 

97 

97 

94 

94

94 

90 

90 

90 

92

92 

94 

92 

100 

97

92 

90 

94 

90 

92

100 

100 

97 

87 

90 

134

Apr.

421 

174 

126 

115 

112

110 

100 

97 

97 

92

85 

92 

92 

80 

85

85 

83 

74 

76 

78

78 

76 

74 

76 

80

97 

100 

97 

97 

94

Secondfoot-days

2,112 

2,3S6 

2,708

29,843

5,151 

4,577 

3,001 

3,143 

2,131 

1,761 

1,308 

1,257 

1,378

30,913

May

90 

85 

85 

83 

83

78 

78 

76 

76 

72

65 

65 

67 

65 

63

61 

63 

61 

67 

67

63 

63 

59 

61 

63

63 

63 

61 

63

61 

61

Maxljatun

92 

90 

94

449

1,250 

356 

134 

421 

90 

74 

50 

43 

52

1,250

June

61 

61 

57 

63 

63

63 

69 

74 

74 

69

67 

65 

63 

61 

63

61 

57 

61 

57 

50

50 

52 

52 

48 

50

50 

50 

50 

a50 

a50

July

50 

4S 

48 

48 

46

43 

46 

43 

44

44

42 

40 

36 

40 

40

38 

38 

38 

40 

40

43 

42

40 

40 

40

38 

40 

44 

43 

43 

43

Minimum

59 

67 

76

41

87 

98 

87 

74 

59 

48 

36 

38 

42

36

Aug.

43 

42 

42 

40 

3S

3S 

40 

42 

43 

42

42 

40 

3S 

43 

42

42 

40 

40 

42 

38

40 

3S 

38 

38 

40

42 

40 

42 

42 

40 

40

Mean

68.1 

79.5 

87.4

81.8

166 

15S 

96.8 

105 

6S.7 

58.7 

42.2 

40.5 

45.9

84.5

Sept.

42 

43 

44 

44 

46

48 

44 

44 

43 

43

43 

46 

46 

44 

44

46 

48 

48 

48 

48

48 

52 

52 

48 

48

46 

46 

44 

46 

46

Run-off in 

acre-feet

4,190 

4,730 

5,370

59,200

10,220 

9,080 

5,950 

6,230 

4,230 

3,490 

2,590 

2,490 

2,730

61,300

Peak discharge.- Jan. 8 (2:30 p.m.) 4,060 sec.-ft.; Feb. 3 (12 p.m.) 660 sec.-ft.; Feb. 26 (11:3 

a.m.) 540 sec.-ft.; Apr. 1 (9:30 a.m.) 908 sec.-ft.

a No gage-height record; discharge computed from probable shape of recession curve; June 29, 30, 

discharge interpolated.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeologlcal Survey
SANTA ANA RIVER BASIN 45

Santa Ana River at Santa Ana, Calif.

Location.- Water-stage recorder, lat. 33°45'00", long. 117 0 54'20n , 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 1940. 

Average discharge.- 17 years, 23.4 second-feet.

Extremes.- Maximum discharge during year, 3,510 second-feet Jan. 8 (gage height, 1.80 

feet), from rating curve extended above 350 second-feet by logarithmic plotting; no 

flow for several months.

1923-40: 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 fair except those for periods of fragmentary or no gage-height record, 

which are poor. During irrigation season canal of Anaheim Union Water Co. and canal 

of Santa Ana Valley Irrigation Co. divert entire flow of river at points near Olive, 

about 22 and 26 miles, respectively, above station. Flow also regulated by storage 

and other diversions.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

a

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. HOT. Dec. Jan.

0

0

0

0

0

0

0

698

f206

fll

a4.0

a3.5

a3.0

f8

f!3

a3.0

a2.5

a2.0

al.6

al.2

a. 8

a. 6

f30

f!6

a. 8

a. 5

a. 4

a. 4

a. 2

a. 2

a. 2

Feb.

m

f93

f!36

f!96

as

a2.0

al.O

a. 4

a. 4

a. 4

a. 4

a. 4

a. 4

al.S

a. 4

aS.O

al.O

a. 2

0

0

0

0

0

0

a!2

alO

a8

a2.0

a. 2

-

Month

Jan 

Pet 

Mar

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

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

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

Water year 1939-4tO....... ...............

Mar.

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

18

Apr.

41

a20

a4.0

al.O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

al.S

a. 4

0

0

0

-

Secondfoot -days

0

0

0

811.1

1,006.9 

498.0 

18

67.7

0

0

0

0

0

1,590.6

May

HqX^lffTTTl

0

0

0

244

698 

196 

18

41

0

0

0

0

0

698

June July

M^p^TfliMn

0

0

0

0

0 

0 

0

0

0

0

0

0

0

0

Aug.

Mean

0

0

0

2.22

32.5 

17.2 

.6

2.26

0

0

0

0

0

4.35

Sept.

Run-off In 

acre-feet

0

0

0

1,610

2,000 

938 

36

134

0

0

0

' 0

0

3,160

Peak discharge.- Jan. 8 (7:30 p.m.) 3,510 sec.-ft.; Feb. 3 (6:30 p.m.) 620 see.-ft.

a No gage-helgEt record; discharge computed on baala of occasional measurements, partial gageheight records, and field estimates, records for Santiago Creek at Santa Ana, and probable shape 

of recession curves.

f Fragmentary gage-height record; discharge computed on basis of partial gage-height records and 

records for Santiago Creek at Santa Ana. , ., : -. i
46 SANTA ANA RIVER BASIN

Southern California Edison Co.'s canal and Greenspot pipe line near Mentone, Calif.

Location.- At Southern California Edison Co.'s power plant at mouth of canyon, lat. 34° 

 06*20", long. 117°05'55", in SWi sec. 4, T. IS., R. 2 W., 3 miles northeast of 

Mentone.

Records available.- 1896 to September 1940.

Average discharge.- Southern California Edison Co.'s canal, 38 years (1896-98, 1904-40), 

50.9 second-feet. Greenspot pipe line, 29 years (1911-40), 5.72 second-feet.

Extremes.- 1896-1940: Maximum daily canal discharge, 97 second-feet Mar. 16, 1905; no 

flow during short periods in nearly every year.

Remarks.- Intake of canal is in sec. 34, T. IN., 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 sum of the records as given in the following tables represents total flow of canal 

above forebay.

Cooperation.- Records furnished by Southern California Edison Co.

Discharge, in second-feet, of Southern California Edison Co.'s canal near Mentone, Calif., 

water year October 1939 to September 1940

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

SO 

51

Oct.

40 

37 

35 

36 

40

37 

36 

40 

32 

33

47 

55 

59 

61 

67

67 

65 

67 

64 

74

72 

72 

79 

83 

77

76 

73 

73 

71 

67 

53

HOT.

64 

67 

67 

67 

59

61 

61 

64 

64 

56

56 

51 

53 

51 

59

56 

59 

59 

59 

61

64 

67 

64 

61 

64

60 

53 

61 

48 

39

Dec.

48 

45 

45 

40

40

40 

37 

37 

37 

43

41 

43 

43 

43 

43

43 

43 

43 

45 

48

53 

53 

60 

44 

40

37 

37 

40 

40 

43 

39

Jan.

37 

37 

39 

52 

43

44 

43 

7 

44 

68

61 

83 

57 

56 

49

41 

45 

44 

41 

39

35 

40 

40 

37 

37

37 

35 

33 

37 

32 

36

Pet).

47 

51 

51 

71 

61

59 

57 

56 

51 

51

48 

48 

45 

48 

40

43 

43 

43 

43 

40

40 

43 

45 

44 

48

0 

55 

82 

80

Month

Oot 

No-v 

Dec

C

Jan 

Pet 

Mar 

Apr 

Ma, 

Jim 

Jul 

Aue 

Sep

n

uary

ater year 1939-40. .....................

Mar.

77 

72 

67 

64 

64

59 

59 

59 

59 

53

53 

51 

48 

48 

48

48 

43 

43 

44 

45

45 

45 

48 

43 

43

48 

51 

48 

SI 

49 

31

Apr.

60 

81 

79 

76 

77

75 

75 

69 

69 

64

64 

64 

61 

61 

67

67 

59 

61 

61 

59

59 

59 

59 

59 

55

72 

64 

61 

59 

59

Seoondfoot-days

1,788 

1,775 

1,333

23,197

1,329 

1,433 

1,606 

1,955 

1,919 

1,741 

1,969 

1,998 

1,884

20,730

May

56 

53 

53 

56

51

51 

51 

53 

61 

64

69 

72 

75

77 

77

77 

72 

72 

59 

55

60 

56 

61 

61 

61

64 

64 

64 

59 

56 

59

MflxInHCTi

83 

67 

60

83

83 

82 

77 

81 

77 

69 

72 

75 

72

83

June

59 

56 

61 

59 

61

56 

56 

53 

53 

56

56 

61 

69 

64 

64

64 

64 

59

51 

53

51 

51 

51 

59 

59

61 

61 

61 

56 

56

July

59 

64 

61 

61 

64

64 

61 

64 

61 

69

67 

72 

67 

67 

72

72 

72 

72 

59 

56

59 

53 

56 

64 

64

64

64 

64 

59 

59 

59

Aug.

59 

67 

69 

64 

61

61 

64 

61 

64 

67

69 

69 

67 

75 

75

72 

72 

67 

59 

59

56

59 

56 

64 

61

64 

64 

64 

64 

61 

64

Mlnli1*11 He&n

32 57.7 

39 59.2

37 43 . 0

0 63.6

7 42.9 

0 49.4 

31 51.8 

55 65.2 

51 61.9 

51 5S.O 

53 63.5 

56 64.5 

51 62.8

0 56.6

Sept.

67 

69 

67 

64 

64

56 

56 

59 

64 

64

72 

69 

72 

69 

72

67 

67 

61 

64 

59

56 

56 

51 

59 

51

59 

64 

61 

61 

64

Run-off in 

acre-feet

3,550 

3,520 

2,640

46,020

2,640 

2,840 

3,190 

3,880 

3,S10 

3,450 

3,910 

3,960 

3,740

41,130
SANTA ANA RIVER BASIN

Discharge, In aecond-feet, of Greenspot pipe line near Mentone, Calif., water year 

October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

S2

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

9

9

9

9

 OT.

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

5

Dec.

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

g

5

5

5

5

5

5

5

5

Jan.

5

5

5

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

Feb.

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

0

3.0

5

6

-

Month

Jan 

Feb

March..".................,................

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

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

JlllT. ...... ....

Water year 1939-4O....... ...............

Mar.

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

Apr.

5

5

5

5

5

5

6

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

g

5

6

7

7

7

7

7

-

Seoondfoot-days

279

266

155

2,729

155 

138.0

156

161

254

250.5

279

orro C, IV

270

2,641.5

May

7

7

7

7

7

7

7

7

7

7

7

7

8

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

Maximum

9

9

5

9

5 

5

5

7

9

9

9

9

9

9

June

9

9

8.5

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

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

MinijDUDt

9

5

5

0

5 

0

5

5

7

8

9

9

9

0

Aug.

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

S

9

9

9

9

9

9

9

9

Mean

9.00

8.87

5.00

7.48

5.00 

4.76

5.00

5.37

8.19

8.35

9.00

9.00

9.00

7.22

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

-

Run-off in 

acre-feet

553

528

307

5,410

307 

274

307

319

504

497

553

553

536

5,240

9-232 February 1956

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
48 SANTA ANA RIVER BASIN

Mill Creek near Mentone, Calif.

Location.- Water-stage recorder and concrete broad-crested weir control, lat. 34°05'10", 

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, It miles northeast of Mentone, 

and 5 miles southeast of East Highlands. Altitude of gage, about 1,780 feet.

Records available.- February 1939 to September 1940.

Extremes.- 1939-40: Maximum discharge during period of record, 900 second-feet (estimated) Sept. 25, 1939; no flow during several periods.

Remarks.- Records fair. Mill Creek power canals 1, 2, and 3 divert above station.

Discharge, In second-feet, water year October 1939 to September 194O

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

18 

13 

14 

IS

16 

17 

18 

19 

20

81 

22 

23 

24 

25

26 

27 

88 

29 

30 

31

Oct.

7.5 

9 

7 

3.4 

.4

.2 

.1 

.2 

.1 

O

O 

O 

O 

O 

O

O 

O 

O 

Q 

O

O 

O 

.2 

.5 

.2

.1 

.2 

.2 

.3 

.1 

.1

HOT.

0.2 

.1 

.2 

.1 

O

0 

.1 

.2 

.3 

.2

.1 

.1 

.2 

.1 

.1

.4 

.2 

.8 

.4 

.5

.2 

.6 

.2 

.4 

.1

.3 

2.7 

33 

0 

0

Dec.

O 

O 

0 

0

o 

o

0

o 

o 

o

o 

o 

o

0

o

0

o 

o 

o 

o

o

.2 

.2 

1.7 

.1

.1 

.1 

.1 

.1 

0 

O

Jan.

O 

O 

O 

.2 

.2

.1 

5.5 

e!40 

26 

17

36 

48 

27 

33 

29

22 

23 

f!2 

a. 6 

O

O 

0 

.5 

.5 

O

0 

O 

0 

0 

1.0 

2.1

Feb.

29 

22 

39 

34 

26

20 

16 

2.2 

.3 

.2

.S 

.2 

f.3 

27 

16

9 

2.1 

.2 

.2 

.1

.1 

.2 

.1 

O 

ell

e!18 

43 

38 

36

Month

Dot 

Ho? 

Dec

C

Jan 

Pet 

Mar 

Apr 

Hay 

Jim 

Jul 

Aug 

Sep

«

alendar year

11.....................................

ater year 1939-40. .....................

liar.

18 

4.7 

3.5 

4.0 

1.1

.7 

O 

.4 

12 

S.5

7.5 

3.1 

0 

0 

O

0 

O 

O 

.1 

.1

.1 

.7 

1.1 

.1 

.1

.1 

.1 

0 

O 

O 

29

Apr.

30 

14 

4.6 

3.7 

10

l.O 

0 

O 

O 

0

O 

O 

O 

O 

20

31 

10 

.6 

.2 

.2

.1 

1.3 

32 

21 

3.2

6 

.6 

.2 

.2 

.5

Secondfoot-days

29.S 

41.8 

2.6

.

423.7 

490.4 

95.0 

19O.4 

21.69 

1.82 

2.14 

1.93 

2.89

1,304.17

Hay

O.2 .2' 

.1 

6.5 

12

.3

.2 

.2 

.2 

.1

.2 

.1 

.1

.1 

.1

.1 

.1

^faxlnpm

9 

33 

1.7

-

140 

118 

29 

32 

12 

.1 

.2 

.2 

.2

140

June

0.1 

.1

July

0.1

.1 

.1

.1 

.1

.2 

.1

.1 

.1

Minimum

O 

O 

O

-

O 

O

o 

o

o

0

Aug.

0.1 

.1

.1

.1 

.1

.1

O 

O 

.2

Mean

0.96 

1.39 

.08

-

13.7 

16.9 

3.06 

6.35 

.700 

.061 

.069 

.068 

.096

3.56

Sept.

0.1 

.1

.2 

.2

.2 

.2 

.1 

.2

.1

.S 

.1

.1

Run-off In 

acre-feet

59 

83 

5.2

-

840 

973 

1S8 

378 

43 

3.6 

4.2 

3.8 

5.7

3,590

a Ho gage-height record; discharge computed on basis of measurement, 

e Includes flow around control: Jan. 8, 9 second-feet; Feb. 25, 1 second-foot; Feb. 26, 1O 

second-feet.

f Discharge computed from partly estimated gage heights.

Hote.- Discharge less than O.I second-foot on days for which no figures are given.
SANTA ANA RIVER BASIN 49

Mill Creek power canals 2 and 3 near Craftonville, Calif.

Location.- Weir in tailrace of Southern California Edison Co.'s power plant, lat. 

 34U 03'10", long. 117°02'25", in NEi sec. 13, T. IS., R. 2 W., near Redlands-Bear 

Valley highway, 5 miles northeast of Craftonville.

Records available.- January 1919 to September 1940. 

Average discharge.- 21 years, 21.0 second-feet.

Extremes.- 1919-40: Maximum daily discharge, 36 second-feet Nov. 19, 1923, and June 7, 

1924; no flow May 27, 1923, Feb. 14, 1937, Mar. 3 to June 23, 193S, Aug. 6-7, 1938, 

Sept. 26, 1939, Jan. 8, 1940.

Remarks.- Discharge computed from weir records at tailrace of power plant. Mill Creek 

power canal 2 diverts from Mill Creek in sec. 8, T. IS., R. 1 W.; power canal 3 

diverts in sec. 13, T. IS., R. 1 W., about 3 miles above intake for canal 2. The 

canals serve power plants 2 and 3, which discharge into a common tailrace. 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 1939 tc September 1940

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16

IV 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Got.

16 

16 

15 

13 

13

13 

16 

14 

14 

14

14 

14 

14 

15 

15

18 

20 

20 

20 

21

21 

20 

20 

21 

22

22 

22 

22 

22 

21 

21

Hov.

20 

20 

21 

21 

21

21 

21 

22 

22 

21

21 

21 

21 

21 

21

21 

21 

21 

21 

21

21 

21 

20 

21 

21

20 

19 

15 

17 

17

Dec.

16 

16 

16 

16 

16

16 

16 

16 

16 

15

15 

15 

15 

15 

16

16 

15 

15 

15 

15

15 

15 

15 

14 

15

14 

14 

14 

14 

15 

15

Jan.

14 

14 

14 

18 

13

14 

16 

0 

12 

10

11 

4 

14 

17 

19

19 

19 

19 

19 

18

18 

19 

21 

20 

19

20 

20 

21 

21 

21 

21

Feb.

22 

17 

18 

IS 

20

28 

27 

26 

26 

26

24 

24 

24 

24 

25

26 

25 

24 

24 

24

24 

26 

24 

24 

21

11 

21 

23 

23

Month

Dot 

Hov

Dec

C

Jan 

Pet 

Mar 

Apr «»y

Jim 

Jill 

Aus 

Sep

«

uary

ater year 1939-4

Mar.

27 

27 

26 

27 

29

30 

30 

30 

31 

30

30 

31 

30 

30 

30

30 

30 

30 

30 

30

29 

29 

29 

29 

29

30 

31 

30 

30 

30 

26

Apr.

22 

22 

23 

30 

29

29 

31 

30 

28 

28

28 

28 

27 

26 

24

25 

28 

27 

27 

28

28 

15 

14 

27 

27

25 

25 

28 

28 

30

Secondfoot -days

649 

612 

469

8,287.5

605 

667 

909 

792 

959 

868 

733 

634 

542

8,239

May

29 

30 

30 

29 

30

29 

31 

30 

30 

31

32 

32 

31 

32 

32

32 

32 

3& 

31 

31

31 

31 

31 

32 

31

31 

31 

31 

31 

32 

31

Mq^jjfrniTa

22 

22 

16

31

21 

28 

31 

31 

32 

31 

26 

22 

20

32

June

31 

31 

31 

31 

31

31 

31 

31 

31 

31

31 

31 

30 

30 

29

29 

29 

28 

28 

27

27 

28 

27 

27 

26

26 

26 

26 

26 

27

July

26 

26 

25 

24 

24

24 

24 

20 

20 

24

24 

24 

24 

24 

25

25 

24 

24 

23 

25

25 

23 

23 

23 

23

23 

23 

23 

23 

23 

23

m n^ mmB

13 

15

14

0

0 

11 

25 

14 

29 

26 

20 

19 

17

0

Aug.

22 

22 

22 

22 

22

22 

21 

21 

21 

21

20 

21 

21 

20 

20

20 

20 

20 

20 

19

20 

20 

20 

20 

20

20 

20 

20 

19 

19 

19

Mean

17.7 

20.4

15.1

22.7

16.3 

23.0 

29.3 

26.4 

30.9 

28.9 

23.6 

20.5 

18.1

22.5

Sept.

20 

19 

19 

19 

19

19 

19 

19 

18 

18

18 

18 

18 

18 

18

18 

18 

18 

18 

18

18 

17 

18 

18 

17

17 

17 

17 

17 

17

Run-off In 

acre-feet

1,090 

1,210 

930

16,440

1,000 

1,320 

1,800 

1,570 

1,900 

1,720 

1,450 

1,260 

1,080

16,330
50 SANTA ANA RIVER BASIN

Mill Creek power canal 1 near Craftonville, Calif.

Location.- Water-stage recorder and weir control, lat. 34°05'10", long. 117°02'25" in 

NEt sec. 13, T. IS., R. 2 W., a quarter of a mile downstream from point of diversion 

from Mill Creek and 5 miles northeast of Craftonville.

Records available.- January 1919 to September 1940. 

Average discharge.- 21 years, 2.93 second-feet.

Extremes.- 1919-40: 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 NEi sec. 13, T. 13., R. 2 W., above station on Mill Creek,near Mentone. 

After passing through Mill Creek powerhouse 1, entire flow is at tines distributed 

for irrigation and domestic supply.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

9.

3

4

5

6

7

8

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

9.5

6

3.3

4.0

5

4.0

2.6

2.6

2.S

3.0

2.S

2.6

1.2

3.3

3.3

1.4

0

0

2.7

4.3

3.8

3.4

2.5

3.0

2.8

2.S

2.S

2.1

2.S

Hov.

3.4

3.4

3.0

3.0

3.0

3.0

2.S

3.4

3.3

2.4

3.0

2.S

1.8

.9

3.0

1.1

1.0

3.0

3.0

3.0

2.S

2 S

2^8

3.0

3.0

3.0

2.5

0

0

0

-

Dec.

0.6

1.4

1.4

1.4

1.4

1.4

1.5

1.5

1.7

1.8

l.S

l.S

1.9

2.1

2.2

1.1

1.2

2.2

2.3

2.3

2.3

2.5

2.3

l.S

2.7

3.8

3.8

3.4

2.5

1.4

1.5

Jan.

2.2

2.2

2.2

2.S

5.5

3.6

3.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.6

3.6

2.5

2.3

1.5

1.9

2.3

2.6

Feb.

0.9

0

0

0

0

2.1

4.0

3.3

3.6

4.1

4.0

3.8

3.S

4.3

3.8

3.S

3.4

3.3

3.4

3.4

3.6

3.S

3.4

3.3

2.2

0

0

0

0

-

Month

Calendar year 1939 ......................

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

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

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

Water year 1939-40...... ................

Mar.

0

0

0

0

.6

2.2

3.4

3.3

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.0

3.0

3.1

3.1

3.0

2 S

2\S

2.6

2.6

2.8

3.3

4.5

4.1

4.1

4.0

2.2

Apr.

0

0

0

0

0

.3

3.0

2.0

3.0

2.6

1.3

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Seoondfoot-days

108.4

73.2

61.0

1,295.1

41.1

71.3

S2.2

12.3

79.8

139.3

125.9

74.5

74.3

943.3

May

0

0

0

0

0

0

0

0

1.1

3.2

4.1

3.7

3.0

3.3

3.S

4.5

6

4.5

4.0

2 *3

2.3

2.6

3.3

2.8

3.1

4.0

4.3

4.0

3.4

3.0

3.0

MflXJ^IFF\TTB

9.5

3.4

3.S

9.8

5.5

4.3

4.5

3.0

4.5

7

S

2.6

3.1

9.5

June

3.3

4.5

4.5

4.0

5.5

7

6.5

6

5.5

5.5

5

5

4.9

4.9

4.9

4.9

4.7

4.3

4.1

4.1

4.3

4.0

4.0

4.0

4.0

4.0

3.8

3.8

4.3

4.0

July

3.8

3.6

3.6

3.4

3.4

5

6.5

8

7

6

5.5

5.5

4.9

4.1

4.0

4.1

4.0

4.0

3.8

3.8

3.6

3.3

2.S

3.0

3.0

3.0

2.8

2.6

2.6

2.6

2.6

Minimum

0

0

.6

0

0

0

0

0

0

3.3

2.6

2.2

2.2

0

Aug.

2.5

2.3

2.3

2.2

P. 2

2.2

2.2

2.3

2.3

2.3

2.5

2.5

2.5

2.3

2.5

2.3

2.5

2.5

2.5

2.3

2.5

2.5

2.5

2.6

2.6

2.5

2.5

2.5

2.5

2.3

2.3

Mean

3.50

2.44

1.97

3.55

1.33

2.46

2.65

.41

2.57

4.64

4.06

2.40

2.48

2.58

Sept.

2.3

2.3

2.5

2.5

2.3

2.5

2.2

2.2

2.2

2.2

2.3

2.2

2.5

2.5

2.5

2.6

3.1

2.8

2.6

2.6

2.5

2.5

2.5

2.6

2.5

2.5

2.6

2.6

2.6

2.5

-

Run-off in 

acre-feet

215

145

121

2,570

S2

141

163

24

158

276

250

148

147

1,S70

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
SANTA ANA RIVER BASIN 

Plunge Creek near East Highlands, Calif.

51

Location.- Water-stage recorder and concrete broad-crested weir control, lat. 34°07'10", 

long. 117008'30n , In NEiNEi sec. 1, T. IS., 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 1940.

Average discharge.- 21 years, 6.70 second-feet.

Extremes.- Maximum discharge during year not determined; no flow for several months.

1519-1940: Maximum discharge, 5,340 second-feet Mar. 2, 1938, by slope-area 

method; no flow for several months each year.

Remarks.- Records fair. Diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

1

8

«

10

11

12

13

14

15

16

17

18

19

20

21

24

25

26

Oct.

1.3

1.3

1.4

1.2

al.O

a.S

a2.0

al.O

a.S

a.S

a.2

a.l

I e.02

Hov.

Uo.02

.1

6.5

1.6

.3

-

Dec.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Ve.03

.1

.8

1.1

.4

.2

.1

.1

.1

.1

.1

Jan.

0.1

.1

.1

3.1

2.0

1.3

5

136

33

24

23

33

18

10

9

S.5

8

7.5

7

6

5.5

5.5

5.5

7.5

6

5.5

5

4.7

4.5

4.5

5.5

Peb;

22

30

45

59

2S

20

18

12

9.5

9.5

9.5

9

8

9

10

8.5

7.5

7

6.5

6

5

5.5

6

5

32

99

50

30

26

-

Month

Calendar year 193% .....................

Jan 

Feb 

Ban.

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

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

Water year 1939-4 0 .....................

Mar.

is

14

13

11

11

10

9.5

9

9

8.5

8

7.5

7.5

7

4.3

2.7

3.4

2.7

3.4

2.6

1.6

1.2

1.1

1.0

.9

.8

2.6

5

5

3.9

44

Apr.

101

45

33

26

22

18

16

14

14

12

11

9

9

8.5

20

14

12

S.5

6.5

6

6

6

6

6

6

22

12

11

11

9

-

Secondfoot-days

4.57

1,327.07

394.4 

592.5 

229.2

500.5

.46

0

0

0

1,770.07

May

7.5

6

4.7

2.7

l.S

al.3

al.O

a.S

a. 6

a. 4

a.S

a. 2

a.l

> e.OS

Maximum

1.1

88

136 

99 

44

101

0

0

136

June

V eO.02

0

0

0

0

0

0

0

-

July

Minimum

-

0

.1 

5 

.8

6

0

0

0

0

0

Aug.

Mean

.301

.147

3.64

12.7 

20.4 

7.39

16.7

.015

0

0

0

4.84

Sept.

Run-off in 

acre-feet

23

18

9.1

2,630

782 

1,180 

455

993

.9

0

0

0

3,520

a Ho gage-height recbrdj discharge computed on basis of records for City Creek near Highland, 

e Average for period; daily flow less than 0.1 second-foot.
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", 

in NWtNWi sec. 4, T. 2 S., R. 3 W., 2 miles southeast of Redlands. Altitude of gage, 

about 1,260 feet.

Drainage area.- 118 square miles.

Records available.- October 1926 to September 1940.

Average discharge.- 14 years, 2.14 second-feet.

Extremes.- Maximum discharge during year, 2,620 second-feet Jan. 8 (gage height, 4.0 

feet). from rating curve extended above 170 second-feet by logarithmic plotting; no 

flow during several'months.

1926-40: Maximum discharge, 7,460 second-feet Mar. 2, 1938, by slope-area method; 

no flow during several months each year.

Remarks.- Records poor. Entire flow diverted above station except during high water.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

26

29

30

31

Oct.

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

HOT.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

-

Pec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

f.l f.l

f.l.1.1

.1.1

0

0

0

0

0

0

Jan.

0

0

0

.1 f.l

f.l

1.3

1S8

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1.1

.1.1

0

0

0

0

Feb.

50

0

72

f.S

0

0

0

0

0

0

0

0

0

.7

0

0

0

0

0

0

0

0

0

0

1.1

2.6

0

0

O

_

-

Month

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

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

Water year 1939-40. .....................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.6

Apr.

14

3.1

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

-

Seoondfoot-days

0.1

.1

.7

57.5

190.0

127.2

3.6

17.1

0

0

0

0

0

338. S

May

Xaxijnuni

0.1.1.1

13

138

72

3

f- 

 0

14

0

0

0

0

0

188

June July

FHwHimim

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

0.003

.003

.02

.16

6.13

4.39

.12

.57

0

0

0

0

0

.93

Sept.

Run-off in 

acre-feet

0.2

.2

1.4

114

377

252

7.1

34

0

0

0

0

0

672

Peak discharge.- Jan. 8 (7t30 a.m.) 2,620 sec.-ft.; Feb. 1 (3 p.m.) 316 sec.-ft.; Feb. 3 (6:30 

p.m.; 631 sec.-ft.; Apr. 1 (1 a.m.) 106 see.-ft.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights and one 

field estimate of discharge.
SANTA ANA RIVER BASIN 

Warm Creek near Colton, Calif.

53

Location.- Water-stage recorder, lat. 34°04'00'1 , long. 117°1S'30", In San Bernardlno 

grant, at Colton Avenue Bridge, 1-4 miles east of Colton, San Bernardlno County. 

Altitude of gage, about 970 feet.

Records available.- August 1920 to September 1940.

Average discharge.- 20 years, 49.3 second-feet. Average combined discharge of Warm Creek 

and Meeks & Daley canal, 20 years, 59.9 second-feet.

Extremes.- Maximum discharge during year, 1,440 second-feet Jan. 8 (gage height, 8.75 

reet;, from rating curve extended above 60 second-feet on basis of velocity-depth 

relation; minimum daily, 16 second-feet Sept. 27.

1920-40: 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 except those for days of high water, Jan. 8, Mar. 31, Apr. 1, and 

for periods of doubtful or no gage-height record, which are poor. See p. 67 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 oT San Beriiardlno sewagedisposal plant discharged 3,480 acre-feet Into Warm Creek above station during year.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

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.

33

32

32

31

30

31

37

30

27

31

30

26

24

23

23

26

30

29

31

32

34

37

38

39

3S

38

33

30

25

22

23

Hov.

22

24

27

24

21

21

22

25

24

21

21

20

20

24

34

34

2S

2S

24

36

38

35

34

36

36

35

36

65

49

47

~

Dec.

44

43

43

43

a38

a30

29

33

33

27

29

2S

27

2S

28

2S

27

29

33

33

30

29

44

36

32

33

33

33

32

33

34

Jan.

34

36

38

65

63

58

92

405

73

64

64

57

51

51

52

52

53

55

53

53

52

51

77

74

58

52

d52

d52

d50

d50

d50

-Feb.

124

91

142

S6

64

61

63

56

58

58

60

5S

58

79

61

55

57

58

57

60

65

63

70

68

107

107

d75

d65

70

-

~

Month

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

Calendar year 1939 ......................

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

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

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

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

Water year 1939-40..... .................

Mar.

64

64

58

60

60

63

65

64

65

64

64

61

60

58

56

55

55

49

40

40

40

33

3S

31

40

39

51

37

36

38

1S4

Apr.

133

80

64

63

61

61

58

57

55

53

51

49

4S

44

42

36

36

40

41

42

43

45

47

49

49

aSO

a55

a4S

a46

a44

Seoondfoot-days

945

911

1,022

15,713

2,087

2,101

1,732

1,670

1,158

8S7

738

632

595

14,523

May

a44

d44

d42

d42

d40

d40

d40

d40

d39

39

3S

37

36

35

35

33

35

35

35

36

36

37

36

36

36

35

35

36

36

36

34

Maximum

39

65

44

383

405

142

184

133

44

33

27

25

23

184

June

33

33

33

32

32

31

31

31

31

31

31

32

31

30

29

29

30

30

31

23

27

27

27

2S

27

27

26

26

26

27

July

26

26

27

26

27

26

23

24

24

23

23

22

22

21

20

20

24

23

24

24

23

23

23

25

24

24

24

23

24

25

25

Minimum

22

20

27

20

34

55

31

36

33

26

20

16

16

Aug.

22

22

22

20

23

23

25

23

23

24

23

23

22

23

22

22

23

22

24

23

24

23

22

23

21

20

19

20

19

18

19

Mean

30.5

30.4

33.0

43.1

67 3

72.4

55.9

55.7

37.4

29.6

23.3

22.0

19.S

39.7

Sept.

IS

18

19

21

19

18

18

19

19

19

21

a20

a20

a20

a20

a20

20

21

20

20

22

22

23

22

23

19

16

20

19

19

Run-off in 

acre-feet

1,870

1,310

2,030

31,190

4,140

4,170

3,440

3,310

2,300

1,760

1,460

1,350 

1,180

28,320

Peak discharge.- Jan. 8 (5:30 a.m.) 1,440 sec.-ft.j Feb. 1 (11:30 a.m.) 402 sec.-ft.; Feb. 3 

(3r30 p.m.) 499 aeo.-ft.; Mar. 31 (11 p.m.) 798 sec.-ft.

.i-ug uuys.

d Doubtful gage-height record; discharge computed on basis of combined discharge of City Creek 

and City Creek Water Co.'s canal near Highland.
54 SANTA ANA RIVER BASIN

Combined discharge, In second-feet, of Warm Creek and Heeks & Dale; canal near Colton, Calif., 

water year October 1939 to September 1940

Day

1

8

3

4

5

6

7

B

9

10

11-

lS

13

14

IS

16

17

18

19

20

21

22

83

24

85

26

87

28

89

30

31

Oct.

e33

e32

e32

32

31

32

38

32

28

32

35

43

44

43

43

46

50

49

49

51

53

56

58

58

56

56

52

49

44

41

42

HOT.

41

43

46

43

40

40

40

45

44

41

41

40

40

44

54

54

48

48

44

56

58

53

54

56

56

55

56

69

50

49

-

Dec.

47

47

48

48

a48

a49

49

53

52

46

48

47

46

47

47

48

46

49

53

53

50

49

64

56

52

53

53

53

52

53

54

Jan.

54

56

58

76

64

59

93

e406

73

64

64

57

51

51

52

52

53

55

53

53

52

51

77

74

58

52

52

52

50

50

50

Feb.

el24

91

e!42

86

64

61

63

56

58

58

60

58

58

79

61

55

57

58

57

60

65

68

70

68

e!07

107

75

65

70

_

-

Month

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

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

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

Mar......... ..... .. .....

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

Water year 1939-4 0......................

Mar.

64

64

58

60

60

63

65

64

65

64

64

61

61

60

58

58

59

61

59

59

59

51

56

50

49

58

69

55

55

57

193

Apr.

183

80

64

63

61

61

58

57

57

56

54

52

53

52

57

55

55

59

60

61

62

64

66

67

68

99

74

67

65

63

-

Seoondfoot-days

1.340

1,448

1,560

20,248

2,162

2,101

1,979

1

QQV I JTSrO

1^746

1,452

1,327

1,290

1,172

19,570

*ay

63

62

61

61

59

59

60

60

58

58

58

56

56

54

53

53

55

55

55

56

56

55

54

54

54

53

53

54

54

54

53

MflylmiCTi

58

69

64

390

406

142

193

183

63

52

46

44

42

406

June

52

52

51

50

50

51

50

50

50

50

50

48

50

49

48

48

49

49

49

47

46

47

47

47

46

45

45

45

45

46

July

45

45

46

45

44

45

42

42

43

42

41

40

41

40

40

39

41

42

43

43

43

42

43

43

43

44

44

43

44

45

44

Wpjlfl^fll

28

40

46

28

5O

55

49

52

53

45

39

O xrf f

35

28

Aug.

42

42

42

40

43

43

44

43

42

43

42

43

42

42

42

42

43

42

43

43

43

43

42

43

41

39

38

37

39

38

39

Mean

43.2

48.3

50.3

55.5

69.7

72.4

63i8

66.4

56.3

48.4

42.8

41.6

39.1

53.5

Sept.

38

38

39

40

38

3V

38

38

38

39

40

40

39

40

39

39

39

39

39

39

41

41

42

41

41

38

35

40

38

39

-

Run-off in

acre-feet

2,660

2,870

3,090

40,150

4,290

4,170

3,930

3,950

3,460

2*880

2,630

Sf 560

2,320

38,810

a Ho gage-height record; discharge interpolated, 

e Canal flow estimated.

B-S32 February 1936

UNITED STATES DEPARTMEHT OP THE IHTHUOR 

Geological Surrey
SANTA ANA RIVER BASIN 

Strawberry Creek near Arrowhead Springs, Calif.

55

Location.- Water-stage recorder and broad-created weir control, lat. 34°10'45", long. 

117"15'55", in SEJ sec. 11, T. IN., 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 1940.

Average discharge.- 20 years (1920-40), 4.56 second-feet.

Extremes.- Maximum discharge during year, 292 second-feet Jan. 8 (gage height, 3.70 

feet), from rating curve extended above 50 second-feet on basis of control formula; 

minimum, 0.2 second-foot Sept. 9-10, 13, 28, 30.

1919-40: Maximum discharge, 3,360 second-feet Mar. 2, 1938, by rainfall-run-off 

studies; practically no flow at times during 1929 and 1931-35.

HemarkS.- Records fair. During the year Del Rosa Water Co. diverted about 91 acre-feet 

above station. There is another small diversion for domestic supply above station.

Discharge, ID second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

84

25

26

27

28

29

SO

SI

Oct.

3.5

3.5

6.5

3.8

2.7

8

7.5

a5.5

a4.5

a3.8

a3.2

a2.8

a2.6

f2.4

2.0

1.8

1.6

1.7

1.5

1.4

1.3

1.5

1.5

1.9

2.2

1.9

1.6

1.6

1.8

1.4

1.6

HOT.

1.6

1.9

1.8

1.8

2.0

2.2

2.0

2.3

2.5

2.3

2.3

2.3

2.2

1.9

1.9

1.9

2.2

2.2

2.0

1.9

1.8

1.7

2.0

2.2

2.3

2.4

4.0

7

3.3

3.1

-

Dec.

2.7

2.5

2.4

2.4

2.3

2.2

2.2

2.4

2.7

2.7

2.5

2.4

2.4

2.3

2.2

2.4

2.3

2.3

2.0

2.0

2.2

2.2

7.5

4.0

2.9

2.8

3.1

2.8

2.7

2.9

2.7

Jan.

2.5

2.5

2.5

8

5

4.1

18

58

20

18

17

15

11

8

8

6.5

6

5.5

5

4.8

4.4

4.3

6

5.5

4.1

3.8

3.5

3.2

3.1

2.8

3.2

Feb.

16

16

20

15

10

7.5

6

5.5

5.5

5.5

5.5

5

4.8

5.5

4.7

4.6

4.6

4.4

4.1

3.8

4.1

5

4.4

4.3

21

37

11

8.5

14

_

-

Month

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

Calendar year 1939.... ..................

Jtaroh.....................................

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

Ifer........ ...............................

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

Water year 1939-40....... ...............

Bar,

e.5

8

7.5

7

7

6

6

6.5

6.5

7

6.5

6

5.5

5

5

5

5.5

5

5.5

5

4.8

4.8

4.8

4.6

5

6

8.5

5.5

4.6

4.3

42

Apr.

32

16

10

10

9.E

8

7.5

7

7.5

7

6

6

6

5

14

5.5

4.6

5

5

4.8

4.4

3.8

3.8

3.8

3.8

23

8.5

7

6.5

6

Seoondfoot-daye

88.6

71.0

83.1

1,721.3

269.3

263.3

218.9

247 ,0

126.9

72.8

32.8

27.0

19.8

1,520.5

May

5

5

5

5

5.5

5.5

5

.3

.0

.0

.0

.0

3.6

3.8

3.8

3.8

3.8

4.3

4.0

3.8

3.6.

3.6

3.5

3.3

3.5

3.t>

4.0

4.0

3.8

3.5

3.3

Mmfiffpim

8

7

7.5

53

58

37

42

32

5.5

3.3

1.6

1.2

.8

58

June

3.1

3.1

3.2

3.3

3.2

3.1

2.9

3.1

3.1

2.4

2.3

2.3

2.4

2.5

2.9

3.3

2.8

2.7

2.0

1.9

1.8

1.8

2.0

1.7

1.7

1.6

1.6

1.5

1.7

1.8

July

1.6

1.5

1.2

1.2

1.0

.9

1.0

.8

.8

.8

,8

.8

.9

1.0

.8

1.0

1.2

1.2

1.2

1.1

1.2

.9

.9

.9

.9

1.2

1.2

1.4

1.2

1.2

1.0

IK T*lwffB

1.3

1.6

2.0

.3

2.5

3.C

4.3

3.8

3.3

1.5

.8

.6

.4

.4

Aug.

1.1

1.0

1.0

1.2

1.0

.9

.9

.9

.9

.9

1.0

.7

.9

.8

1.1

1.1

.9

1.0

.7

.7

.6

.7

.7

.7

1.1

.8

.7

.9

.7

.7

.7

Mean

2.86

2.37

2.68

4.72

8.69

9.08

7.06

8.23

4.09

2.43

1.06

.87

.66

4.15

Sept.

0.8

.8

.8

.8

.8

.7

.8

.8

.6

.6

.7

.6

.6

.6

.8

.6

.6

.6

.7

.7

.7

.7

.7

.7

.5

.5

.5

.5

.6

.4

-

Run-off in 

acre-feet

176

141

165

3,420

534

522

434

490

252

144

65

54

39

3,020

Peak discharge.- Jan. 8 (4 a.m.) 292 sec.-ft.; Feb. 26 (Ir45 a.m.) 125 sec.-ft.; Mar* 31 (9 p.m.) 

107 sec.-ft.; Apr. 26 (4j30 a.m.) 161 sec.-ft.

a No gage-height record; discharge computed on basis of records for City Creek near Highland and 

partial record for Waterman Canyon Creek near Arrowhead Springs.

f Discharge computed from partial gage-height record. ,
Springs.

00 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 

117U 16'35", In SWiSWi sec. 2, T. 1 N., R. 4 W., 1 mile northwest of Arrowhead Spri 

Altitude of gage, about 2,125 feet.

Drainage area.- 4.55 square miles.

Records available.- November 1911 to October 1914, December 1919 to September 1940.

Average discharge.- 22 years (1912-14, 1920-40), 2.86 second-feet.

Extremes.- Maximum discharge during year, 122 second-feet Jan. 7 (gage height, 2.SO 

feet); minimum, 0.2 second-foot Aug. 20-22.

1920-40: Maximum discharge, 2,350 second-feet Mar. 2, 1938, based on rainfallrun-offstudies; no flow at times during summers of 1924-26, 192S, 1929, 1931, and 

1934.

Remarks.- Records good except those for days of no gage heights, which are fair. One 

small diversion for domestic use above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

S 

9 

10

11 

18 

13 

14 

IS

16 

17 

IS 

19 

80

81 

88 

83 

24 

25

86 

27 

28 

29 

30 

31

Oct.

al.3 

al.2 

2,4

1.6 

al.4

f2.6 

2.4 

1.8 

1.6 

1.5

1.4 

al.3

fl.l 

1.1

.8

.a 

.a

.9

.8

.6 

.7 

,9 

1.2 

1.2

.9 

.9 

.8 

.7 

.8 

.8

HOT.

o.s

.8

.7 

.8

.9 

.8 

1.1 

1.2 

1.0

.9 

.9

.8 

.8

,8

.a

.7 

.7 

.8

.8 

.8 

.9 

.9 

.9

1.0 

1.2 

2.7 

1.2 

1.2

Dec.

0.9 

.8

.8 

.8

.8 

.9 

1.1 

1.1 

1.0

1.1 

l.l

1.2 

1.2

1.0 

.9 

.9 

.9 

1.0

1.2 1.8

2.3 

1.5 

1.3

1.2 

1.1 

1.1 

1.1 

1.0 

1.0

Jan.

0.9 

.9

4.7 

1.9

1.5 

10 

22 

8.5 

S

6.5 

7

3.6 

3.1

2.9 

2.7 

2.7 

2.5 

2.2

2.1 

2.0 

3.2 

2.7 

2.5

2.2 

2.1 

1.8 

1.8 

1.8 

2.0

Feb.

8 

7

8 

5.5

5 

4.6 

4. S 

3.6 

3.4

3.1 

3.0

3.6 

3.0

2.7 

2.7 

2.6 

2.6 

2.5

2.4 

2.9 

2.7 

2.5

10

11 

5 

4.0

7

Month

Dot 

HOT 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

V

eofoer .... 

alendar year 1939 ......................

uary

ater year 1939-4

Mar.

4.4 

4.2

3.6 

3.4

3.3 

3.1 

3.1 

3.1 

3.3

3.3 

3.1

3.0 

3.0

2.9 

2.7 

2.7 

2.9 

2.7

2.5 

2.4 

2.2 

2.2 

2.2

2.7 

3.6 

2.6 

2.5 

2.2 

13

Apr.

10 

6

4.6 

4.4

4.2 

4.0 

4.0 

3.9 

3.9

3.4 

3.1

2.9 

5.5

3.4 

2.9 

2.5 

2.4 

2.4

2.2 

2.4 

2.4 

2.4 

2.4

7.5 

4.2 

3.4 

3.1 

2.9

Seoondfoot-days

37.5 

28. S 

33.5

814.4

121.0 

133.8 

102.6 

113.9 

61.5 

39.3 

22.7 

15.0 

15.4

724.7

May

2.6 

2.5

2.5 

2.5

2.5 

2.4 

2.1 

1.9 

1.9

1.9 

1.9

1.8 

1.8

1.9 

2.0 

2.1 

1.9 

1.9

1.9 

1.9 

1.8 

1.6 

1.6

1.6 

1.9 

1.9 

1.8 

1.6 

1.5

Kfnflimim

2.6 

2.7 

2.3

35

22 

11 

13 

10 

2.6 

1.7 

.9 

.7 

.6

22

June

1.5 

1.6

1.7 

1.7

1.6 

1.6 

1.6 

1.5 

1.4

1.4 

1.3

1.3

1.4

1.4 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2

1.2 

1.0

1.0 

1.1 

.9 

1.0 

.9

July

0.9 

.9

.9 

.9

.8 

.8 

.8

.6 

.6

.7 

.8 

.8 

.8 

.7

.7 

.6 

.6 

.5 

.6

.6 

.7 

.8 

.8 

.7 

.7

mT»4m 

0.6 

.7 

.8

.4

.8 

2.4 

2.2 

2.2 

1.5 

.9 

.5 

.4 

.4

.4

Aug.

0.7 

.6

.5

.6

.5 

.5 

.5 

.4 

.4

.4 

.4

.4 

.6

.6 

.5 

.5 

.5 

.4

.4 

.4 

.5 

.5 

.5

.5 

.5 

.5 

.4 

.4 

.4

Mean

1.21 

.95 

1.08

2.23

3.90 

4.61 

3.31 

3.80 

1.98 

1.31 

.73 

.48 

.51

1.98

Sept.

0.5 

.5

.6 

.6

.5 

.5 

.4 

.5 

.5

.5 

.5

.5 

.5

.5 

.5 

.6 

.6 

.6

.6 

.6 

.5 

.5 

.4

.4 

.4 

.5 

.5 

.5

Run-off in

acre-feet

74 

57 

66

1,610

240 

265 

204 

226 

122 

78 

45 

30 

31

1,440

Peak discharge.- Jan. 7 (11:30 p.m.) 122 sec.-ft.5 Feb. 1 (10 a.m.) 38 sec.-ft.; Feb. 25 (5:30 

p.m.) 43 sec.-ft.; Mar. 31 (11 a.m.) 37 sec.-ft.

a No gage-height record; discharge computed on basis of probable shape of recession curve, 

f Discharge computed from partly estimated gage-height record. , : - 
SANTA ANA RIVER BASIN 57 

City Creek near Highland, Calif.

Location.- Water-stage recorder, lat. 34°08'35", long. 117°11'25", In SWiNWi sec. 27, T. 

IN., R. 3 W., 14 miles northeast of Highland. Altitude of gage, about 1,550 feet.

Drainage area.- 19.8 square miles.

Records available.- October 1919 to September 1940.

Average discharge.- 21 years, 8.97 second-feet.

Extremes.- Maximum discharge during year, 378 second-feet Jan. 8 (gage height, 3.00 

feet); minimum, less than 0.1 second-foot for several periods.

1919-40: Maximum discharge, 6,900 second-feet Mar. Z, 1938, by slope-area method; 

no flow for several months most years.

Remarks.- Records good except those for periods of missing or fragmentary gage heights 

ana of extreme low flow, which are fair. 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 1939 to September 1940

Day

1

Z

S

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

1.3

1.9

2.9

1.9

1.4

.6

10

3.1

1.4

1.2

1.1

1.0

.9

.S

.7

.6

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

SOT.

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

.2

15

5.5

4.6

-

Dec.

l.B

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

l.B

.7

.1

.1

.1

.1

.1

.1

.1

Jan.

0.1

.1

.1

7

7.5

6.5

13

140

42

41

36

44

30

23

IB

16

12

10

9

7.5

7.5

7

6.5

9.5

6.5

4.S

3.B

4.4

3.6

3.4

3.4

Pet).

26

39

47

42

24

IS

13

11

9.5

6.5

7.5

7

7

S.5

7

6

4.6

3.S

3.2

2.9

3.0

3.6

4.4

4.6

30

104

37

25

88

_

-

Month

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

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

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

Water y»ar 1939-40. .....................

Mar.

20

17

15

15

14

12

11

10

9.5

6.5

6.5

7.5

7.5

6

5.5

5

4.S

4.6

6

4.6

4.6

4:2

6

6

6

6.5

10

9

6.5

6.5

60

Apr.

90

47

36

30

25

22

20

17

12

10

9

S

7

6.5

17

16

14

13

12

12

12

12

12

12

12

34

16

12

11

12

Seoondfoot-days

33.6

27.9

7.1

1,673.1

570.5

.62 

.62

2,173.39

May

12

12

12

12

12

12

11

a6.5

a4.2

a3.7

a3.3

a3.0

a2.2

fl.3

1.2

1.2

1.2

1.3

1.2

1.2

1.2

1.2

.9

.5

.4

.4

a. 3

a.5

2.2

a.2

.2

Maximum

10

15

1.6

71

140

90

140

June

0.2

.2

.2

.1

.1

.1

.1

> .06

July

Minimum

0.1

.1

.1

.1

6.5

.2

_

-

Aug.

Mean

1.06

.23

4.58

19.0

3.95

.020 

.020

5.94

Sept.

Run-off In 

acre-feet

67

55

14

3,320

1,130

243

1.2 

1.2

4,310

a No gage-height record; discharge computed on basis of changes in flow as shown by City Creek 

canal cr Interpolated.

f Fragmentary gage-height record; discharge computed from partly estimated gage height. 

Note.- Discharge less than 0.1 second-foot on days for which nc figures are given.

400454 O - 41 - S
58 SANTA ANA RIVER BASIN

Combined discharge, In second-feet, of City Creek and canal near Highland, Calif., water year 

October 1939 to September 1940

Day

1 

2 

9

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

90 

91

Oct.

3.7 

4.5 

6 

4.5 

3.8

3.4 

12 

6 

5 

4.4

3.9 

3.7 

3.5 

3.5 

3.4

3.5 

3.5 

3.6 

3.4 

3.4

3.1 

2.9 

3.1 

3.4 

4.0

3.6 

3.4 

3.0 

2.9 

3.0 

3.0

HOT.

3.2 

3.4 

3.5 

3.4 

3.5

3.6 

3.5 

4.0 

4.4 

4.2

4.2 

4.0 

3.8 

3.7 

3.6

3.6 

3.6 

3.4 

3.3 

3.3

3.4 

3.4 

3.4 

3.6

3.8

3.8 

4.4 

15 

5.5 

4.6

Dec.

4.7 

4.1 

4.2 

4.2 

4.2

4.2 

4. .3 

4.3 

4.4 

4.4

4.4 

.3 

.4 

.1 

.2

.1 

.0 

.0 

4.1 

4.1

4.1 

4.1 

7 

6.5 

5

4.8 

4.6 

4.6 

4.6 

4.6 

4.5

Jan.

4.5 

4.5 

4.6 

9 

7.5

6.5 

13 

140 

42 

41

36 

44 

30 

23 

18

16 

13 

12 

11 

9

8 

7.5 

8.5 

10 

8

7.5 

6.5 

6.5 

6 

6.5 

6.5

Feb.

27 

39 

47 

42 

27

22 

17 

15 

13 

11

10 

9.5 

9.5 

10 

9

8.5 

7.5 

7.5 

7 

7

7 

8 

8.5 

7.5 

32

104 

40 

29 

31

Month

Dot 

HOT 

Dec

C

jaa 

Fet> 

Mar 

Apr 

*»y 

Jan 

Jul 

tag 

Bep

11

uary

ater year 1939-4

Bar.

23 

21 

19 

19 

18

15 

15 

14 

13 

12

12 

11 

11 

10 

10

9.5 

9.5 

9.5 

11 

9.5

9.5 

9 

8.5 

8 

8

8.5 

10 

9 

8.5 

8.5 

80

Apr.

90 

47 

36 

30 

25

22 

20 

20 

18 

16

15 

14 

13 

12 

21

16 

14 

13 

12 

12

12 

12 

12 

12 

12

34 

20 

16 

15 

13

Secondfoot-days

124.1 

124.1 

139.1

2,627.8

566.1 

612.5 

439.5 

624 

256.5 

114.9 

48.5 

29.3 

36.8

3,115.4

May

12 

12 

12 

12 

12

12 

11 

11 

11 

10

9.5 

8.5 

8 

7.5 

7

6.5 

7 

7.5 

6.5 

6.5

6.5 

6.5 

6 

6 

6

6 

6.5 

6.5 

6 

5.5 

5.5

Maximum

12 

15 

7

74

140 

104 

80 

90 

12 

5.5 

2.4 

1.3 

1.7

140

June

5.5 

5.5 

5.5 

5.5 

5.5

5 

5 

5 

4.8 

4.6

4.4 

4.2 

4.0 

3.8 

3.8

3.8 

3.4 

3.0 

3.0 

3.0

3.0 

3.0 

2.8 

2.6 

2.4

2.4 

2.4 

2.4 

2.8 

2.8

July

2.4 

2.4 

2.3 

2.0 

1.9

1.7 

1.7 

1.7 

1.7 

1.6

1.4 

1.4 

1.4 

1.3 

1.3

1.4 

1.7 

1.9 

1.6 

1.5

1.4 

1.3

1.2 

1.2 

1.2

1.1 

1.3

1.5 

1.5 

1.3 

1.2

Minimum

2.9 

3.2 

4.0

.7

4.5 

7 

8 

12 

5.5 

2.4 

1.1 

.7 

.8

.7

Aug.

1.2 

1.1 

1.1 

1.0 

1.0

1.0 

1.0 

.9 

.9 

.8

.8 

.8 

.9 

1.0 

1.2

1.3 

1.2 

1.0 

.9 

.8

.7 

.8 

.8 

.9 

.9

1.0 

1.0 

.9 

.9 

.8 

.7

Mean

4.00 

4.14 

4.49

7.20

18.3 

21.1 

14.2 

20.8 

8.27 

3.83 

1.56 

.95 

1.23

8.51

Sept.

0.8 

1.0 

1.3 

1.5 

1.5

1.3 

1.6 

l.S 

1.2 

1.0

1.0 

1.2 

1.2 

1.2 

1.2

1.3 

1.3 

1.4 

1.6 

1.7

1.3 

1.3 

1.3 

1.2 r.l

1.0 

1.0 

1.0 

1.0 

1.0

Run-off in 

acre-feet

246 

246 

276

5,210

1,120 

1,210 

872 

1,240 

509 

228 

96 

58 

73

6,170
SANTA ANA RIVER BASIN 5S 

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., 1& miles northeast of Highland.

Records available.- May 1924 to September 1940. 

Average discharge.- 16 years, 2.12 second-feet.

Extremes.- Maximum dally discharge during year, 6.5 second-feet May 9, 10; no flow at 

times.

1924-40: Maximum discharge, 10 second-feet May 30, 1927; no flow at times.

Remarks.- Records good. This canal diverts from City -Greek 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 1939 to September 1940

Day

1

3

3

4

S

6

7

S

9

10

11

12

13

14

IS

16

17

IS

19

130

81

22

23

24

25

26

27

28

29

30

31

Oct.

2.4

2.6

3.9

2.6

2.4

2.6

1.7

3.0

3.7

3.3

2.S

a2.7

f2.6

2.7

2.7

3.0

3.3

3.3

3.3

3.2

3.9

2.7

3.9

3.2

3.8

3.4

3.3

3.9

2.S

2.9

2.9

HOT.

3.1

3.3

3.4

3.3

3.4

3.5

3.4

3.9

4.3

4.1

4.1

3.9

3.7

3.6

3.5

3.5

3.5

3.3

3.2

3.2

3.3

3.3

3.3

3.5

3.7

3.7

4.2

0

0

0

-

Dec.

2.9

4.0

4.1

4.1

4.1

4.1

4.2

4.2

4.3

4.3

4.3

4.3

4.3

4.0

4.1

4.0

3.9

3.9

4.0

4.0

4.0

4.0

5

6

4.9

4.7

4.5

4.5

4.5

4.5

4.4

Jan.

4.4

4.4

4.5

2.2

0

0

0

.1

0

0

0

0

0

0

0

0

.9

1.6

1.6

1.5

.4

.3

.2

.5

1.3

2.5

2.9

2.0

2.6

3,0

3.2

Feb.

1.4

0

0

0

2.9

4.2

4.0

3.7

3.2

2.9

3.5

2.4

2.3

1.9

1.9

2.7

3.1

3.9

4.0

4.3

4.1

4.4

3.9

2.9

2.3

0

2.6

3.6

2.S

_

-

Month

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

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

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

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

Water year 1939-4 0. .....................

Mar.

2.9

4.4

4.0

3.7

3.6

3.4

3.6

4.0

3.8

3.S

3.7

3.5

3.5

4.3

4.7

4.6

4.6

4.7

5

4.9

4.S

4.7

2.4

»°

0

0

0

0

0

0

.1

Apr.

0

0

0

0

0

0

0

2.S

5.5

6

6

6

6

6

4.2

.1

0

0

0

0

0

0

.3

.5

.5

.1

3.1

4.2

4.1

1.4

-

Seoondfoot-days

90.2

96.2

133.0

963.0

40.1

77 8

92 7

55*8

134.8

113 9

4S« 5

29 S

36^8

94S.1

May

0

0

0

0

0

0

0

4.3

6.5

6.5

6

5.5

6

6

6

5.5

6

6

5.5

5.5

5.5

5.5

5

5.5

5.5

5.5

6

6

4.0

5.5

5.5

Maximum

3.8

4.3

6

7.5

4.5

4.4

5

6

6.5

5. 5

2.4

' 1.3

1.7

6.5

June

5.5

5.5

5.5

5.5

5.5

5

5

5

4.8

4.5

4.4

4.1

3.9

3.S

3.7

3.7

3.4

3.0

3.0

3.9

2.9

3.9

2.8

2.6

2.4

2.4

3.4

2.4

2.7

3.7

July

2.4

3.4

2.3

2.0

1.9

1.7

1.7

1.7

1.7

1.6

1.4

1.4

1.4

1.3

1.3

1.4

1.7

1.9

1.6

1.5

1.4

1.3

1.2

1.2

1.2

1.1

1.3

1.5

1.5

1.3

1.2

Minimum

1.7

0

3.9

0

0

0

0

0

0

2.4

1.1

.7

.8

0

Alig.

1.2

1.1

1.1

1.0

1.0

1.0

1.0

.9

.9

.S

.8

.8

.9

1.0

1.2

1.3

1.2

1.0

.9

.8

.7

.8

.S

.9

.9

1.0

1.0

.9

.9

.8

.7

Mean

2.91

3.31

4.26

2.64

1.29

2» 63

n QQ

i'.s6

4.35

3.80

! 56

.95

1.23

2.59

Sept.

0.3

1.0

1.3

1.5

1.5

1.3

1.6

1.3

1.3

1.0

1.0

1.3

1.2

1.2

1.2

1.3

1.3

1.4

1.6

1.7

1.3

1.3

1.3

1.2

1.1

1.0

1.0

1.0

1.0

1.0

-

Run-off in 

acre-feet

179

191

362

1,910

SO 1 CJ, j.Qt

184 innan a&f

226

Qft wo

CD DO

73

1,SSO

a Interpolated.

f Computed from partly estimated gage height.
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. 

IIV'SU'IO", In Muscuplabe grant, 7.3 miles northwest of San Bernardino, 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, and 

uecemoer 1919 to September 1940.

Average discharge.- 21 years (1913-14, 1920-40), 2.21 second-feet.

Extremes.- Maximum discharge during year, 40 second-feet Jan. 8 (gage height, 2.55 feet); 

no flow for several months.

1913-14, 1919-40: Maximum discharge, 3,320 second-feet Mar. 2, 1938, based on 

ralnfall-run-offstudies; no flow for several months during summers of 1924-37, 1939, 

and 1940.

Remarks.- Records good. City of San Bernardino diverted 1,247 acre-feet above station 

during year for municipal supply and to spread over canyon floor for ground-water 

recharge.

Cooperation.- Results of several discharge measurements furnished by city of -San 

bernaraino.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

3

4

5

6

7

8

9

10

11

18

13

14

16

16

17

18

19

80

81

88

£3

84

85

86

87

88

89

30

31

Dot.

0.2

.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

 or.

0

0

0

0

0

0

0

0

. .01

-

Dec.

> 0.02

Jan.

0.02

.6

13

4.7

5

4.3

4.6

3.1

1.4

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Feb.

1.8

5

8.5

6.5

4.2

3.0

.9

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

a

.2

.2

.2

2.8

7

3.3

2.9

3.1

-

Month

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

Jan

Pet

March..*..... ............. .

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

*iy.. .....................................

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

Water year 1939-41)......................

Mar.

2.0

.8

.5

.4

.3

.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.2

Apr.

6.5

3.9

3.1

3.0

2.0

.4

.4

.2

.3

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

1.7

1.8

1.3

.1

.1

Seoondfoot-days

0.64

Ojj> '.62

99.28

38.52 

52.6

11.1

27.2

2

Aa 

 Tt9

.30

0

0

0

133.66

Hay

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

 .06

Ka-Himim

0.2

-

8.5

13

a.s

4.2

6.5

.1

0

0

0

13

June

 0.02

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

July

M\njnmm

0

0

.2

.1

.1

0

0

0

0

0

Aug.

Mean

0.021

.007

.020

.272

1.24 

1.81

.36

.91

.079

.010

0

0

0

.365

Sept.

Run-off In 

acre-feet

1.3

.4

1.2

197

76 

104

Ojj>

54

4.9

.6

0

0

0

264

Peak discharge.- Jan. 8 (1 a.m.) 40 sec.-ft.; Feb. 3 (4:30 p.m.) 17 sec.-ft.; Feb. 26 (10 p.m.) 

14 seo.-ft.; Mar. 31 (12 m.) 14 sec.-ft. ,,. . .
SANTA ANA RIVER BASIN 

Lytle Creek near Fontana, Calif.

61

Location.- Water-stage recorder, lat. 34 0 12'0511 , long. 117°26'50", In NWi sec. 6, T. 1 

N., R. 5 W., unsurveyed, a quarter of a mile downstream from Lytle Creek power plant 

of Southern California Edison Co. and 7$ miles north of Fontana. Altitude of gage, 

about 2,200 feet.

Drainage area.- 47.9 square miles.

Records available.- October 1918 to September 1921, October 1922 to September 1940.

Average discharge.- 16 years (1919-20, 1925-40), 9.37 second-feet. Average combined discharge of creek and Fontana pipe line, 19 years (1919-20, 1922-40), 36.4 second-feet.

Extremes.- Maximum discharge during year not determined; no flow during parts of year. 

1518-21, 1922-40: Maximum discharge, 25,200 second-feet Mar. 2, 1938, by slopearea method; no flow during most of each year.

Remarks.- Records poor. Table on following page shows total flow of Lytle Creek and 

Fontana pipe line. See p. 63 for records for Fontana pipe line.

Cooperation.- Records furnished by Fontana Union Water Co.

Discharge, In seoond-feet, water year October 1939 to September 1940

Day

1

9

3

4

5

6

7

S

9

10

11

18

IS

14

IS

16

17

18

19

80

81

22

85

84

85

86

87

88

sa

80

31

Oct.

1.6

3

2.5

3.4

3.6

3.5

3.6

3.5

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

3.6

4.0

3.9

2.2

0

0

0

1.0

0

0

0

0

0

1.4

KOT. Dec. Jan.

0

0

0

0

0

0

26

317

36

10

8

7.5

7

6.5

3.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

4.5

e

11

7

6.5

6

6

6.5

4.5

3.2

.9

0

.2

0

0

0

0

.1

0

0

1.6

e

3.8

3.0

29

6.5

4.0

4.0

6.5

_

-

Month

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

Deooriber. .................................

Calendar year 1939......................

Pet

|fay

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

»ay.. .....................................

£t Bei

Water year 1939-4 0..... .................

Mar.

4.0

4.0

4.0

4.0

7

6.5

7.5

11

10

11

10

9

8.5

S.5

5.5

5.5

6.5

4.5

4.7

4.8

1.8

1.4

0

.4

33

1.2

.9

1.1

.1

0

14

Apr.

5.5

4.0

1.3

.2

.3

0

0

0

0

0

.3

0

0

0

1.9

1.2

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

Seoondfoot-days

76. S

0

0

689.6

421.9

124.8 

189.4

14. S

1.3

0

0

0 

0

829.6

May

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

.1

0

0

0

Mtt-rflMlBI

4.0

0

0

646

317

29 

S3

5.5

1.7

0

0

0 

0

317

June July

HlpVnwa

0

0

0

0

0

0 

0

0

0

0

0

0 

0

0

Aug.

Mean

2.48

0

0

1.89

13.6

4. SO 

6.11

.49

.06

0

0

0 

0

2.27

Sept.

Run-off in 

acre-feet

152

0

0

1,370

837

248 

376

29

3.6

0

0

0 

0

1,660
62 SANTA AM RIVER BASIN

Combined discharge, In second-feet, of Lytle Creek and Fontana pipe line near Fontana, Calif., 

water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

28

31

32

38

40

40

40

38

38

38

38

38

37

37

36

36

36

36

36

36

36

36

36

36

36

35

35

35

35

35

35

HOT.

33

32

33

35

35

34

34

35

34

34

33

33

31

30

30

29

29

29

28

26

30

31

30

31

30

31

30

31

31

31

-

Dec.

30

30

30

30

30

29

29

28

29

29

28

28

28

26

28

27

27

27

26

26

27

27

29

25

23

25

26

26

26

25

26

Jan.

25

25

25

22

26

20

53

325

44

31

30

32

30

26

31

35

35

37

39

39

36

38

42

41

38

38

38

38

37

37

37

Feb.

48

56

61

63

56

52

50

50

46

45

45

45

45

46

45

44

45

45

44

44

44

45

44

43

74

52

46

45

52

.

-

Month

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

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

Bay.. .....................;. ..............

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

Water year 1939-40. .....................

Mar.

46

49

49

47

50

50

52

52

51

52

51

50

48

48

46

46

46

44

45

45

42

41

40

40

42

41

43

42

40

40

62

Apr.

50

42

41

42

41

41

40

40

41

41

40

40

43

42

43

41

40

40

39

39

39

39

38

39

38

46

40

38

38

37

Secondroot-days

1,119

945

852

11,825

1,352

1 422

1J442

1, 218

1« 1S5

1,010

864

820

800

12, 989

Hay

36

36

36

36

36

36

36

35

36

39

38

38

38

38

37

37

37

37

36

37

36

36

36

35

35

36

36

35

35

35

35

^fly 1 imm

40

35

30

568

325

74

62

50

39

35

32

28

27

325

June

35

35

35

35

35

35

34

34

34

34

34

34

34

34

34

34

34

34

34

33

33

33

33

33

33

32

32

32

32

32

July

32

31

31

31

31

31

30

30

29

29

29

29

29

29

29

28

26

28

27

27

27

27

27

27

27

27

27

28

27

26

26

Minimum

28

28

23

15

20

43

40

37

35

32

26

25

26

20

Aug.

26

26

26

26

26

25

25

25

25

25

27

27

26

27

27

27

27

27

27

27

27

26

26

26

27

27

27

27

27

27

27

Mean

36. 1

31.5

27.5

32.4

43.6

49.0

46.5

40.6

36 .3

33.7

28. 5

26. 5

26.7

35.5

Sept.

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

26

26

26

26

26

26

26

26

26

26

Run-off in 

acre-feet

2,220

1,870

1,690

23,440

£, 680

2,820

2* 860

2,420

2,230

2,000

1,750

1,630

1,590

25,760
SANTA ANA RIVER BASIN 63

Fontana pipe line near Fontana, Calif.

Location.- Water-stage recorders, lat. 34°12'05", long. 117°27'05", In sec. 6, T. 1 N., 

K. 5 w., at weirs of Fontana Union Water Co., 8 miles north of Fontana.

Records available.- October 1918 to September 1921, October 1922 to September 1940. 

Average discharge.- 21 years, 28.4 second-feet.

Extremes.- 1918-21, 1922-40: Maximum dally discharge, 82 second-feet July 9, Aug. 5, 

 1937; no flow Apr. 8, 1935, Feb. 13, 27, 1936.

Remarks.- Pipe line diverts practically entire flow of Lytle Creek in NWi sec. 6, T. 1 

N., R. 5 W., which flow passes through Fontana powerhouse and Is then used for Irrigation and domestic supply. Discharge of pipe line added to discharge of Lytle Creek 

near Fontana gives total discharge of creek.

Cooperation.- Records furnished by Fontana Union Water Co:

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

S

9

10

11

IS

13

14

15

16

17

18

19

SO

SI

22

23

24

85

26

27

28

29

30

31

Oct.

26

2S

29

35

36

36

36

34

34

34

34

34

33

33

32

32

32

32

32

32

34

36

36

36

35

35

35

35

35

35

34

HOT.

33

32

33

35

35

34

34

35

34

34

33

33

31

30

30

29

29

29

28

28

30

31

30

31

30

31

30

31

31

31

-

Dec.

30

30

30

30

30

29

29

2S

29

29

2S

28

28

26

28

27

27

27

26

26

27

27

29

25

23

25

26

26

26

25

26

Jan.

25

25

25

22

26

20

27

8

S.5

21

22

24

23

SO

27

35

35

37

39

39

38

38

42

41

38

38

3e

38

37

37

37

Feb.

44

51

50

56

49

46

44

44

43

42

44

45

45

46

45

44

45

45

44

44

42

40

40

40

45

46

42

41

46

_

-

Month

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

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

Water year 1939-40........... ...........

Mar.

44

45

45

43

43

44

44

41

41

41

41

41

40

40

40

40

40

40

40

40

40

40

40

40

8.5

40

42

41

40

40

48

Apr.

45

38

40

42

41

41

40

40

41

41

40

40

43

42

41

40

40

40

39

39

39

39

38

39

38

46

40

38

38

37

-

Seoondfoot-days

1,040

945

852

11,134.4

930.5

1,297

1,252.5

1,205

Ij 123

1,010

884

820

800

12, 159

May

36

36

36

36

36

36

36

35

34

39

38

38

38

38

37

37

37

37

36

37

36

36

36

35

35

36

36

35

35

35

35

Ito-riimmi

36

35

30

47

42

56

48

46 XQ 

O»

35 xn OiC

Oft go

27

56

June

35

35

35

35

35

35

34

34

34

34

34

34

34

34

34

34

34

34

34

33

33

33

33

33

33

32

32

32

32

32

-

July

32

31

31

31

31

31

30

30

29

29

29

29

29

29

29

28

2S

28

27

27

27

27

27

27

27

27

27

28

27

26

26

Minimum

26

28

23

4.4

8

40

8« 5

37

34

32

26

25

26

8

Aug.

26

26

26

26

26

25

25

25

25

25

27

27

28

27

27

27

27

27

27

27

27

26

26

26

27

27

27

27

27

27

27

Mean

33.5

31.5

27.5

30.5

30.0

44.7

40.4

40,2

36. 2

33.7

28. 5

26.5

26.7

33.2

Sept.

27

27

2.7

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

26

26

26

26

26

26

26

26

26

26

-

Run-off in 

acre-feet

2,060

1,870

1,690

22,080

1,850

2,570

2,480

2» 390

2 230 2)000 1,750

1,630

1,590

24, 110
64 SANTA ANA RIVER BASIN

Lytle Creek (east channel) at San Bernardlno, Calif.

Location.- Water-stage recorder, lat. 34°05'45", long. I17°I9'50", In San Bernardlno 

grant, at Mount Vernon Avenue Bridge, San Bernardlno, San Bernardlno County. Altitude of gage, about 1,050 feet.

Records available.- January 1929 to September 1940.

Extremes.- Maximum discharge during year, 1,180 second-feet Jan. 8 (gage height, 3.65 

feet), from rating curve extended above 190 second-feet; minimum dally, 0.1 secondfoot for several periods.

1929-40: 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 for irrigation (see p. 63).

Diachargc, in second-feet, water year October 1939 to September 1940

Day

1

%

3

4

5

6

7

8

9

10

11

18

13

14

IS

17

18

19

20

81

22

23

24

25

26

27

28

29

30

31

Oct.

> 0.15

 or.

> 0.20

Dec.

> 0.20

Jan.

0.2

.2

.2

.S

.2

.2

S

160

.S

.4

.3

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

1.0

2.0

.2

.2

.2

.2

.2

.2

.2

Teh.

7.5

10

16

1.0

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

3.3

6

.8

.5

3.4

_

-

Month

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

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

Water year 1939-4()......................

Mar.

0.4

.2

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.8

.2

.2

.2

.2

8

Apr.

10

2.0

.5

.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

3.5

.3

.2

.2

.2

-

Secondfoot-days

6.2

-

176.8

13.9

6.0

4.66 

6.0

308.25

Hay

.> 0.15

HqTy^mum

_

-

-

160

8

-

_

160

June

.

> 0.20

J 

1Hn\mnm

_

-

-

0.1

.]

-

_

-

July

V 0.20

Aug.

> 0.15

'

Mean

.20

-

5.70

.45

.20

.15 

.20

.84

Sept.

> 0.20

Run-off in 

acre-feet

9.2

12

12

-

3S1

28

12

9.2 

12

612

Note.- Discharge except for Jan 

basis of one field estimate and n

.... .,8, Feh. 1-3, 25, 26, 29, Mar. 31, Apr. 1, 26, computed on 

records for Warm Creek near Colton.
SANTA ANA RIVER BASIN 

Lytle Creek (west channel) at Colton, Calif.

65

Location.- Water-stage recorder, lat. 34°04'00", long. 117°19'1511 , in San Bernardino 

grant, on F Street near Colton Avenue at Colton, San Bernardino County. Altitude of 

gage, about 980 feet.

Records available.- January 1929 to September 1940. 

Average discharge.- 11 years, 0.76 second-foot.

Extremes.- Maximum discharge during year, not determined; no flow during most of year.

1529-40: 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 for irrigation (see 

P. 63).

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

22

29

SO

SI

Oct. MOT.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

a.l

0

0

-

Dee.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

a.l

0

0

0

0

0

0

0

0

Jan.

0

0

0

a.l

0

0

a. 8

a. 8

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

Feb.

0.3

0

a. 2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

-

-

Month

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

Calendar year 1939 .....................

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

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

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

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

Water year 1939-40. .....................

Mar.

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.5

Apr.

0.4

0

0

0

0

0

0

0

0

0

0

0

0

0

a.l

0

0

0

0

0

0

0

0

0

0

a. 2

0

0

0

0

Seoondfoot-daya

0

.1.1

.2

1.8

.7

.5

.7

0

0

0

0 

0

3.9

May

Ma* .

0

.1.1

.1

.3

.5

.4

0

0

0

0 

0

.8

June

'

July

Mini .

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

Aug.

Mean

0

.003

*003

.001

 06

.02

.02

.02

0

0

0

0 

0

.01

Sept.

Run-off in 

acre-feet

0

.2

.2

.4

3.6

1.4

1.0

1.4

0

0

0

0 

0

7.8

9-2S2 February 19S6

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
00 SANTA ANA RIVER BASIN

Cajon Creek near Keenbrook, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°16'00", long. 

117"Z7'Z5", in SWtSEi sec. 12, T. 2 N., R. 6 W., 1,800 feet upstream from Lone Pine 

Creek and li miles north of Keenbrook. Altitude of gage, about 2,'630 feet.

Drainage, area.- 40.9 square miles.

Records available.- December 1919 to September 1940.

Average discharge.- 20 years (1920-40), S.78 second-feet.

Extremes.- Maximum discharge during year, 2,560 second-feet Jan. 8 (gage height, 7.25 

reet), from rating curve extended above 600 second-feet by logarithmic plotting; 

minimum, 2.3 second-feet Sept. 27, 28, 29.

1919-40: 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 periods of no gage-height record, which are fair, 

wo diversions or regulation above station.

Cooperation.- Results of 18 discharge measurements furnished by city of San Bernardino.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

3

4

S

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

SO

S3.

SSS

S3

24

25

26

27

28

29

30

31

Oct.

6

6.5

6.5

6

6.5

6.5

6.5

6.5

6

5.5

5

4.9

4.7

4.7

4.7

4.7

4.5

4.5

5

5

4.9

4.9

5.5

6

5.5

5.5

5.5

5.5

5.5

5

5

Nov.

5

5.5

4.9

4.9

4.9

4.5

4.4

4.9

4.7

4.7

4.5

4.5

4.5

4.4

4.5

4.5

4.5

4.5

4.7

4.7

4.9

5

5

5

5

5

5.5

5.5

5

5

-

Dec.

5.5

5.5

5

4.9

4.7

4.5

4.4

4.2

4.2

4.2

4.1

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

6.5

4.1

4.1

4.1

4.1

4.1

3.9

3.9

3.9

Jan.

4.1

4.4

4.4

4.2

4.1

4.2

60

f273

aS

a7

f6.5

6.5

» 6

5.5

6

6

6.5

7

7

7

7.5

7.5

14

9.5

f7.5

f7.5

f7

f7

7

6.5

6.5

Feb.

ill

40

58

f!7

a!5

a!3

f!2

11

10

9.5

9.5

9

8.5

9

8.5

7.5

a7

a7

a7

a7

a7

a7

a7

a6.5

f22

11

8

8

9.5

_

-

Month

Calendar year 1939......................

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

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

Mar. ........................... . .

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

Water year 1939-4

Bar.

9

9

8.5

a8

f7

6.5

7.5

7

7

7

7

6.5

7

7.5

7.5

7.5

8

8.5

8.5

8

8

7.5

7.5

7

7.5

7

7

7

7

6.5

33

Apr.

15

8.5

S

8

8

7.5

6.5

6.5

7

7

6

6

6

6

6

6

5.5

6

6

6

5.5

6

6

6

6

7.5

6

5.5

5.5

5.5

-

Secondfoot-days

169.0

144.6

132.6

2,565.5

525.9

462.5

257.5

201.0

152.7

111.0

92» X

QO B O

81.' 2

2,422.5

May

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

4.7

4.7

4.5

4.4

4.4

4.5

4.5

4.7

4.7

4.7

4.5

4.4

Vtaf^mnn

6.5

5.5

6

285

273

111

33

15

5.5

4.5

3.4

3.1

3.1

273

June

4.5

4.2

4.2

4.2

4.2

4.2

4.1

4.1

3.9

3.9

4.1

4.1

3.9

3.8

3.8

3.6

3.6

3.4

3.3

3.3

3.3

3.4

3.3

3.3

3.3

3.1

3.1

3.1

3.3

3.4

-

July

3.3

3.3

3.3

3.4

3.1

3.0

3.0

3.0

3.0

2.8

2.8

2.8

2.S

3.0

2.8

2.8

3.0

3.0

3.0

3.0

2.8

2.8

2.8

2.8

2.8

2.8

3.0

3.0

3.0

3.0

3.1

Minljsun

4.5

4.4

3.1

3.1

4.1

6.5

6.5

5.5

4.4

3.1

2 Q O

2.7

2.4

2.4

Aug.

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.0

2.S

2.8

2.8

2.8

2.8

3.0

3.0

3.0

2.8

2.7

2.7

2.8

2.8

3.0

3.1

3.1

3.1

3.1

3.1

3.0

3.0

Mean

5.45

4.82

4.26

7.03

17.0

15.9

8.31

6.70

4

Qv 

 VO

3.70

2.97

2.97

2.71

6.62

Sept.

3.0

3.0

3.0

3.0

3.1

3.0

3.0

3.0

2.8

2.7

2.6

2.6

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.6

2.6

2.6

2.

2.

2.

2.

2.

2.

2.6

-

Run-off in 

acre-feet

335

287

263

5,090

1,040

917

511

399

303

220

183

133

161

4,800

Peak discharge.- Jan. 8 (3 a.m.) 2,560 sec.-ft.; Feb. 1 (11:30 a.m.) 

- ' 118 sec.-ft.; Mar. 31 (10:30 a.m.) 246 sec.-ft.

sec.-ft.; Feb. 25 (6:30

jwo discharge measureid on one discharge

i ) til" 1
SANTA ANA RIVER BASIN 67

Meeks & Daley canal near Colton, Calif.

Location.- Water-stage recorder, lat. 34°04'00", 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 1940. 

Average discharge.- 20 years, 10.6 second-feet.

Extremes.- Maximum dally discharge during year, 20 second-feet on many days; no flow on 

many days.

1920-40: Maximum dally discharge, 25 second-feet Mar. 2, 1938; no flow at times.

Remarks.- Records fair. Canal diverts water from right bank of Warm Creek li miles 

northeast of Colton for Irrigation in vicinity of Colton, Rlverelde, and Corona.

Discharge, in second-feat, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

28

23

84

85

26

27

28

29

90

31

Oct.

cO.2

c.3

c.2

.6

.9

1.3

1.4

1.5

1.5

1.0

4.6

17

80

80

20

20

20

20

16

19

19

19

80

19

IS

IS

19

19

19

19

19

HOT.

19

19

19

19

19

19

16

20

20

20

20

20

80

20

80

20

80

20

80

20

20

IS

80

20

20

20

20

4.0

1.5

l.S

-

Dec.

2.7

4.3

4.5

5

10

19

20

20

19

19

19

19

19

19

19

20

19 20

20

20

20

20

80

20

20

20

20

20

20

20

80

Jan.

20

20

20

11

.6

.6

.9

cl.O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

CO. 2

0

C.4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

e.l

0

0

0

0

_

-

Month

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

Hovember .

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

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

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

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

Vater year 1939-40.... ..................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

.7

1.5

2.3

2.5

4.4

12

19

19

19

IS

16

19

19

19

IS

IS

19

19

9

Apr.

0.4

.3

.3

.3

.3

.4

.4

.4

1.9

2.S

2.6

3.1

4.6

S

15

19

19

19

19

19

19

19

19

18

19

19

19

19

19

19

-

Secondfoot-days

395.5

537.3

537.5

4,533.6

74.1

.7

OCA A £OO. t

325.0

588

565

589

60S

577

5,053.5

May

19

16

19

19

19

19

20

20

19

19

20

19

20

19

16

20

20

20

20

20

20

IS

IS

IS

IS

16

18

IS

IS

IS

19

Maximum

20

20

20

80

20

.4

1 Q -lo

19

20

20

20

20

20

20

June

19

19

16

IS

IS

20

19

19

19

19

19

16

19

19

19

19

19

19

16

19

19

20

20

19

19

16

19

19

19

19

July

19

19

19

19

17

19

19

IS

19

19

IS

16

19

19

20

19

17

19

19

19

20

19

20

18

19

20

20

20

20

20

19

Minimum

0.2

1.5

2

rj

 1

0

0

0

0

.3

18

16

17

17

16

0

Aug.

20

20

20

20

20

20

19

20

19

19

19

20

20

19

20

20

20

20

19

20

19

20

20

20

20

19

19

17

20

20

20

Mean

12.8

17.9

 in « J. ( »O

12.4

2*39

.02

6«2V

10. S

19 0

ie!e

19.0

1O A J.0*O

19.2

13.6

Sept.

20

20

20

19

19

19

20

19

19

20

19

20

19

20

19

19

19

16

19

19

19

19

19

19

IS

19

19

20

19

20

Run-off in 

acre-feet

7S4

1,070

1,070

9,200

147

1.4

509

645

1,170

1,120

1,170

1,210

1,140

10,040

c Very low flow and backwater from debria in canal; discharge estimated.
68 SANTA ANA RIVER BASIN

Day Creek near Etiwanda, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 340 11'0011 , long.

 117°3Ji'2511 , in SWi 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 Etiwanda. Altitude of gage, about 

2,940 feet.

Drainage area.- 4.8 square miles.

Records available.- January 1929 to September 1940.

Average discharge.- 11 years, 4.62 second-feet.

Extremes.- Maximumdischarge during year, 286 second-feet Jan. 8 (gage height,3.25 feet), 

from rating curve extended above 80 second-feet; minimum, 0.7 second-foot Sept. 30. 

1929-40: Maximum discharge, 4,200 second-feet Mar. 2, 1938, by rainfall-run-off 

studies; minimum, 0.1 second-foot Dec.. 19, 20, 1933.

Remarks.- Records good except those for days of high water, Jan. 8 and Feb. 25, and those 

for period of no gage-height record, which are fair. Etiwanda Water Co. diverted 

1,200 acre-feet above station.

Discharge, In second-feet, water year October 1939 to September 194O

Day

1 

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 

90 

31

Oct.

6 

5.5 

5.5 

, 5 

4.6

5 

5.5 

4.9 

4.6 

4.6

4.3 

4.2 

4.0 

4.0 

3.9

3.9 

3.8 

3.8 

3.8

3.7

3.7 

3.6 

3.6 

3.9 

3.9

3.8 

3.8 

3.6 

3.8 

3.8 

3.8

HOT.

3.7 

3.7 

3.7 

3.7 

3.7

3.7 

3,6 

3.9 

3.6

3.7

3.7 

3.6 

3.6 

3.6 

3.5

3.5 

3.5 

3.4 

3.4 

3.2

3.2 

3.2 

3.2 

3.2 

3.3

3.4 

3.4 

3.6 

3.4 

3.4

Dec.

3.4 

3.3 

3.3 

3.3

3.2

3.1 

3.1 

3.1 

3.1 

3.1

3.2 

3.2 

3.1 

3.1 

3.1

3.0 

3.1 

3.1 

3.1

3.1

3.1 

3.2 

3.6 

3.2 

3.1

3.1 

3.1 

3.0 

3.0 

3.0 

3.0

Jan.

3.0 

3.0 

3.0 

3.6 

3.4

3.8 

13 

58 

13 

11

14 

12 

9.5 

6 

7

6 

5,5 

5 

4.8 

4.S

4.6 

4.6 

5.5 

5 

4.7

4.6 

4.6 

4.4 

4.4 

4.3 

4.3

Feb.

a6

aS 

all 

12 

11

9.5 

8.5 

S.5 

7.5

6.5 

6 

6 

6 

5.5

5.5 

5 

6 

5 

4.7

4.7 

5.5 

5.5 

5 

24

17 

12 

9 

12

Month

Dot 

Hov 

Dec

C

Jan 

Peb 

Mar 

Apr

Juz 

Jul £*Sep

WDber ..................................

alendar year 1939 ......................

uary

ust.. ................ ..................

ater year 1939-4

Mar.

11 

10 

9 

6.5 

5.5

5 

4.S 

4.7 

4.4

4.0 

3.7 

3.4 

3.3 

3.2

2.S 

2.4 

2.4 

2.4 

3.5

.3

.2 

.1 

.1 

.2

.4 

.7 

.O 

2.9 

2.8 

9.5

Apr.

9 

6.5

3.1

2.7

2.5 

2.4 

2.2 

1.9

1.4 

1,4 

1.2 

1.2 

1.4

1.4 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

9.5 

7.5 

6.5 

6.5 

6

Seoondfoot-days

132.0 

105.5 

97.5

1,287.8

242.4 

240.9 

145.4 

90.7 

35.7 

29.3 

30.1 

30.5 

26.2

1,206.2

May

2.6

1.4

1.4 

1.4

1.4 

1.3 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0 

1.0

HfrTriTmiPi

6 

3.9 

3.6

103

58 

24 

11 

9.5 

2.6 

1.2 

1.1 

1.0 

.9

58

June

1.0 

.9

.9 

.S

.8 

.9 

.8 

.8

.8 

.9 

.9 

1.0 

.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 

1.2

July

1.1 

1.1

1.1 

1.1

1.1 

1.1 

1.0 

1.0

1.0 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

1.0 

1.0 

1.0 

1.0

Mfr^i^nfl^fl

3.6 

3.2 

3.0

1.7

3.0 

4.7 

2.4 i.i

1.0 

.8 

.9 

.9 

.8

.8

Aug.

1 

1

1

1

1 

1 

1 

1

1 

1 

1 

1

1

1 

1

1 

1 

1

1 

1 

1 

1 

1

1

Mean

4.26 

3.52 

3.15

3.53

7.82 

S.31 

4.69 

3.02 

1.15 

.98 

.97 

.98 

.87

3.30

.0 

.0 

.0 

.0 

.0

.0 

.0

.0 

.0 

.0

.0

.0

.0

.0

.0

.0 

.0 

.0

.0

.0 

.0

.0 

.0 

.0

.0

.0 

.9 

.9 

.9 

.9 

.9

Sept.

0.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

..9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.S 

.9 

.6

.S

.9 

.9 

.9 

.9 

.9

.3 

.3 

.8 

.8 

.S

Run-off in 

acre-feet

262 

209 

193

2,550

481 

478 

288 

180 

71 

58 

60 

6.0 

52

2,390

Peak discharge.- Jan. 8 (3 a.m.) 286 sec. -ft.: Feb. 25 (8 D.m.) 110 see. -ft.

a Ho gage -"height record; discharge computed on basis of records for Cueanonga Creek near Upland.
SANTA ANA RIVER BASIN 69

Cucanonga Creek near Upland, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 340 10'15B , long. 

 IT7t'37'5511 , In NEt sec. 17, T. IN., 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 1940.

Average discharge.- 11 years (1929-40), 7.98 second-feet.

Extremes.- Maximum discharge during year, 628 second-feet Jan. 8 (gage height, 4.25 

feet), from rating curve extended above 350 second-feet; minimum, 2.0 second-feet 

Sept. 27.

1928-40: Maximum discharge, 10,300 second-feet, Mar. 2, 1938, from rainfall-run-off 

study; minimum, 0.8 second-foot July 16, 17, Aug. 28 to Sept. 15, Oct. 2-6, 1934.

Remarks.- Records good except those for period of high water, Jan. 7-9 and Feb. 25-26, 

wnicn are fair. No diversion or regulation above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

18

13

14

15

16

17

18

19

20

SI

22

23

24

25

26

27

28

29

SO

SI

Oct.

9

. S.5

S

7

6

6.5

6.5

6

5.5

e

4.7

4.6

4.5

4.5

4.4

4.4

4.4

4.4

4.4

4.2

4.1

4.0

4.1

4.4

4.5

4.5

4.4

4.2

4.1

4.0

4.0

HOT.

4.1

4.0

3.9

3.8

3.9

3.9

3.9

4.6

4.7

4.5

4.2

4.0

4.0

4.0

4.0

4.0

3.9

3.7

3.5

3.5

3.6

3.5

3.5

3.6

3.6

3.6

3.6

3.7

3.7

3.7

-

Dec.

3.7

3.7

3.6

3.6

3.5

3.6

3.6

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.4

3.4

3.3

3.3

3.1

2.9

2.9

3.0

4.2

4.0

3.6

3.6

3.6

3.5

3.4

3.4

3.4

Jan.

3.4

3.4

3.4

3.8

3.8

3.7

15

115

26

16

13

10

9

9

S

8

8

7.5

7

7

7

7

8

7

6

6

6

6

6

6

6

Pet.

13

13

IS

19

14

13

12

11

11

10

10

9.5

9

9

S.5

8

S

7.5

7

7

7

7

7.5

7

54

42

26

19

24

-

Month

Calendar year 1939. .....................

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

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

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

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

Water year 1939-40......................

Mar.

19,0

17

14

13

13

18

18

18

11

11

11

10

9.5

9.5

9

9

9

9

9

8.5

8.5

8

8

7.5

7.5

8

8

8

7.5

7.5

14

Apr.

13

11

9.5

9

S.5

8.5

8

8

7.5

7.5

7

7

6.5

6.5

7

7

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

11

9

8

7.5

7

Seoondfoot-days

158.8

116.2

107.8

2,105.8

351.0

411.0

320.0

238.5

172.4

m

-i 

 J.

101.2

86.5

75.5

2,261.0

May

7

6.5

6.5

6.5

6.5

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

5

4.9

4.8

4.8

4.9

5

5

6

4.8

4.7

Ma-r-lnrVH

9

4.7

4.2

398

115

54

19

13

7

4.7

4.1

3.0

2.9

115

June

4.6

4.6

4.6

4.7

4.7

4.6

4.6

4.6

4.5

4,4

4.4

4.4

4.2

4.2

4.2

4.4

4.1

4.1

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.1

4.1

-

July

4.1

4.0

4.0

3.8

3.8

3.8

3.8

3.6

3.5

3.3

3.3

3.2

3.1

3.0

3.0

3.0

3.2

3.2

3.0

a. 9

2.9

8.8

2.8

8.8

2.9

3.0

3.1

3.3

3.1

3.0

2.9

mi^imim

4.0

3.5

2.9

8.0

3.4

7

7.5

6.5

4.7

4.0

g a

Z\b

2.2

2.2

Aug.

2.9

-2.9

3.0

3.0

3.0

3.0

2.9

2.9

2.8

2.8

8.8

2.8

2.8

2.8

2.9

2.9

2.8

2.8

2.7

2.6

2.6

2.7

2.7

2.8

2.8

2.8

2.7

2.7

2.6

2.5

2.5

Mean

5.12

3.87

3.48

5.77

11.3

14.2

10.3

7.75

5.56

4.27

3* 26

2.79

8.. 52

6.18

Sept.

2.5

2.6

2.8

2.8

2.7

2.6

2.5

2.5

2.5

2.4

2.4

2.5

2.6

2.6

2.7

2.7

2.7

8.8

2.9

2.8

2.5

2.4

2.3

2.3

2.2

2.2

2.2

2.2

2.3

2.3

Run-off in 

acre-feet

315

230

214

4,170

696

815

635

461

<VAQ o*«

254

201

178

150

4,480

Peak discharge.- Jan. 8 (3 a.m.) 628 sec.-ft.; Feb. 25 (8 p.m.) 239 sec.-ft.
70 SANTA ANA RIVER BASIN

San Jaclnto River near San Jaclnto, Calif.

Location.- Staff gage, lat. 33°44'05", long. 116°49'45", In SEt sec. 13, T. 5 S., R. 1 

E., at highway bridge, Si miles southeast of San Jaclnto. Altitude of gage, about 

1,980 feet.

Drainage area.- 140 square miles.

Records available.- October 1920 to September 1940.

Average discharge.- 17 years (1921-25, 1927-40), 24.5 second-feet.

Extremes.- Maximum discharge during year, 470 second-feet Jan. 8 (gage height, 3.1 feet 

from floodmarks); flow less than 0.1 second-foot for several months.

1920-40: Maximum discharge, 45,000 second-feet (estimated) Feb. 16, 1927; no flow 

for several months of each year except 1940.

Remarks.- Records fair except those for period of doubtful gage-height record, which are 

poor. Gage read once dally. Several diversions above gage. Flow regulated by Lake 

Hemet.

Cooperation.- Gage-height record furnished by Lake Hemet Water Co. Results of 35 dlscharge measurements furnished by Metropolitan Water District.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

g

3

4

5

6

7

a

9

10

ii

12

13

14

15

16

17

18

19

20

81

22

23

84

85

26

87

88

89

SO

31

Oct.

2.0

.1 *

> .03

HOT.

 0.03

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

1.4

1.4

.8

-

Dec.

0.7

.5

.5

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.3

.3

.3

.3

.9

.5

.3

.2

.2

d.4

d.6

d.8

Jan.

dl.O

1.1

1.1

1.4

4.9

1.4

2.7

338

122

83

70

210

83

53

37

33

28

23

IS

15

IS

10

10

17

14

13

12

11

10

10

10

Feb.

11

42

44

147

76

60

51

43

36

32

26

26

23

18

24

19

16

16

14

13

9.5

11

17

16

12

220

93

58

61

_

-

Month

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

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

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

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

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

Water year 1939-4 0..... .................

Mar.

52

43

37

30

26

19

10

7

.1

.1

.1

.1

.1

.2

.3

14

14

14

13

15

14

13

13

13

14

14

14

17

12

11

11

Apr.

96

99

89

76

70

6S

64

59

69 '67

48

43

38

34

24

33

33

29

20

16

12

8.5

1.7

.4

.2

2.0

12

11

11

S.5

-

Seoondfoot-days

2.97

6.34

11.6

4, 560. 20

1,255.6

1,225.5

441.0

1,121.3

7.75

1.50

1.55

1.24

.90

4, 077. 25

May

4.0

1.4

.4

.2

.2

.1

.1

.1

.1

.1

. .06

Mn-rtTiim.

2.0

1.4

.9

180

338

220

52

99

4.0

_

_

-

338

June

.

> 0.05

.

' "

HinljBmB

_

_

0.

.

1.

9.

_

_

_

_

-

-

July

. 0.05

Aug.

»

 0.04

'

Mean

0.096

.211

2 .37

12.5

3 40.5

5 42.3

I 14.2

2 37.4

.250 .06'

.05

.04

.03

11.1

Sept.

. 0.03

~

Run-off in 

aore-feet

5.9

13

23

9,040

2,490

2,430

S76

2,220

16

3.0

3.1

8.5

1.8

8,080

d Doubtful gage-height record; discharge Interpolated.

Note.- Discharge for Oct. 2 to Nov. 27 and Hay 11 to Sept. 30 based on gage heights and field 

estimates.
SANTA ANA RIVER BASIN 71

San Jacinto River near Elsinore, Calif.

Location.- Water-stage recorder, lat. 33°39'4S", long. 117°17'45", n6ar east line of sec. 

9, T. 6 S., R. 4 W., 2 miles east of Elsinore and 2i 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 1940.

Average discharge.- 24 years, 19.S second-feet.

Extremes.- Maximum discharge during year, 38 second-feet Feb. 3 (gage height, 3.39 feet); 

no now for several months.

1916-40: 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 fair. Storage and diversion above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

S

4

5

6

7

a

9

10

11

12

13

14

16

16

IV

18

19

SO

S3.

W

S3

84

85

86

27

28

29

90

51

Oct.

0.3

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

a.2

a.2

a.2

a.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.2

.2

.2

.3

HOT.

0.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.3

.3

.3

.2

.2

.2

,2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.a

f.3

a. 3

-

Dec.

aO.3

a.3

a. 3

a.2

a.2

a.2

a.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

Jan.

0.3

.3

.3

.3

.3

.4

.5

3.4

1.1

.7

.6

.5

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.a

.4

.3

.3

.3

.3

.2

.2

Feb.

2.5

1.2

17

16

7.5

6

2.4

.6

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

.

-

Month

Pet 

Mar

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

lUf....... ................................

Water year 1939-4 0....... ...............

Mar.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

.4

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

Apr.

0.7

.4

.2

.2

.2

,2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

.3

.3

.2

Seoondfoot-days

8.4

7.4

2,543.5

5S.9

6

Q

6.5

0

113.4

Hay

0.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.7

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

*fflirlBrvn

0.3

.5

.3

129

17

.7

0

17

June July

KinijEunt

0.2

.2

.2

0

.2

.1

0

0

Aug.

Mean

0.22

.26

.24

6.97

2.03

.22

0

.31

Sept.

Run-off In 

acre-feet

14

17

15

5,040

117

13

0

226

a No gage-height record; discharge Interpolated.

f Discharge computed from partly estimated gage-height record.
72 SANTA ANA RIVER BASIN 

Elslnore Lake at Elsinore, Calif.

Location.- Staff gage fastened to pier, lat. 33°40'35", long. 117°21'30", on northeast

 snore, in La Laguna grant, at Aloha Beach Club, Elslnore, Riverside County. Datum of 

gage Is 1,200 feet above mean sea level.

Records available.- December 1915 to September 1940.

Remarks.- Elslnore Lake overflows only during and after years of heavy rainfall, such as

 that of 1916. Temescal Creek Is Its high-water outlet. Surface of lake lias been 

below outlet since July 1917. History of lake Is published In Water-Supply Papers 

426, 429, and 441.

Capacity table (elevation, In feet, and contents, In acre-feet)*

1,225 3,500

1,230 11,500

1,235 23,000

1,240 37,000

1,245 54,000

1,250 72,000

1,255 95,000

1,260 123,000

 Hording, S. T., Report on San Jaclnto River Hydrographic Investigation, State of California, Division of 

Mater Rights, 1922, p. SO.

Slevatlon, In feet, water year October 1939 to September 1940

D«y

3

6

7

9

12 

IS

IS

16

17

18

19

SO

21

22

23

24

26

26

27

30

51

Oct.

-

-

-

54.7

 ,

_

-

_

.,

_

54.6

-

_

-

HOT.

-

-

54.4

_

_

_

-

_

54.3

_

-

_

54.3

.

_

-

Dec.

-

54.3

-

_

_

_

54.2

_

M

_

_

-

_

_

54.2

_

-

Jan.

-

-

54.4

-

-

54.4

_

-

_

,.

_

-

54.4

_

_

54.4

Feb.

-

54.7

-

54.6

_

_

-

54.6

_

_

-

_

54.6

_

-

Mar.

-

54.6

-

54.5

_

_

-

54.5

 ,

..

_

-

_

_

54.4

-

Apr.

54.4

-

-

_

_

54.2

_

_

_

54.4

_

_

M

_

-

May

54.1

-

54.1

-

-

_

_

H

_

-

53.7

_

_

-

_

-

_

_

-

June

-

-

53.4

-

_

_

_

_

-

_

_

_

_

-

_

_

»

_

-

July

53.0

-

-

-

_

52.6

_

-

_

_

.

.

-

_

_

«

H

_

52.3

Aug.

-

52.2

-

-

_

_

.

_

-

_

M

_

_

-

_

_

51.7

_

_

-

Sept.

-

51.5

-

51.4

-

_

_

_

-

_

 .

_

_

-

_

_

.

.

v

-

Hote.- Add 1,200 feet to obtain elevations above sea level.
SANTA ANA RIVER BASIN 

Temescal Creek near Corona, Calif.

73

Location.- Water-stage recorder, lat. 33°50'30", long. 117°30'45", In El Sobrante de 

San Jacinto grant, half a mile upstream from site of old Blue Diamond Quarry and 4 

miles southeast of Corona, Riverside County. Altitude of gage, 730 feet.

Records available.- January 1929 to September 1940. 

Average discharge.- 11 years, 4.62 second-feet.

Extremes.- Maximum discharge during year, 46 second-feet Feb. 3 (gage height, 2.17 feet), 

from rating curve extended above 7 second-feet; no flow during several periods.

19.29-40: Maximum discharge, 14,900 second-feet Mar. 2, 1938, by slope-area method; 

no flow during- large part of most years.

Remarks.- Records fair. Many diversions and three reservoirs above station.

Discharge, In second-feet, water year October 1939 to September 1940

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 

90 

31

Oct.

2.S 

2.7 

2.S 

3.1 

3.0

3.2

3.6 

3.3 

2.7

2.5 

2.4

2.0 

l.S

2.0

1

Q

1 ft

1.3 

1.4

1.5 

1.4 

1.4 

1.4 

1.4

1.4 

1.6 

1.7 

1.7 

1.9 

2.0

BOY.

2.5 

2.2 

1.9 

1.9 

2.2

2.5

2.5 

2.4

2.0

1.9 

1.6

2.2 

2.3

1.9 

1 9

1

Q

1.6 ati

2.2

2.5 

2.1 

2.0 

a2.0

aE.l 

aE.l 

a2.1 

a2.2 

a2.2

Dec.

a2.1 

a2.0 

al.9 

fl.8 

1.7

2.1

1.5 

1.7 

1.5

1.5 

1.6

1.2 

1.4

1.5

1.9 

2.0

2.0 

1.9 

1.8 

2.2 

2.4

2.4 

2.4 

2.3 

2.1 

2.3 

2.5

Jan.

2.3 

2.5 

2.0 

2.3 

2.5

2.8

3

TJ

13 

6.5 

6

5.5 

5

4.2

3.8

3.7

3.3 

3.4

3.4 

3.4 

4.1 

6 

4.2

4.2

4.3 

4.4 

4.4 

4.6 

4.8

Feb.

13 

s 

17 

8.5 

5.5

4.7

4.2 

4.2 

4.3

4.3 

4.3

4.3 

4.1

4.0

4.1 

3.S

3.8 

3.S 

3.7 

3.7 

4.1

4.3 

4.1 

4.0 

3.8

Month

Oct 

HOT 

Dec

C

Jan 

Fel 

Mar 

Apr 

May 

Jim 

Jul

£* 

Sep

«

uary

ater year 1939-40. .....................

Mar.

3.7 

3.7 

3.8 

3.8 

3.7

3.6

3.6 

3.7 

3.7

3.7 

3.4

3.0 

3.1

3.0

2.3

2.2

2.2

2.4 

2.1 

2.2

2.2

2.0 

1.5 

1.0 

1.0 

1.3 

2.4

Apr.

2.9 

2.3 

2.3 

2.3 

2.4

2.5

2.6 

2.5 

2.2

2.0 

1.6

1.6 

1.6

1.7

I

P

1.9 

1.5

.8 

.8 

1.1 

1.2 

1.2

1.5 

1.2 

1.4 

1.4 

1.1

Seoondfoot-days

66.9 

62.9 

58.8

2,122.3

131.7 

150.3 

86.5 

53.3 

22.7 

10.2 

2.2 

6.5 

4.0

656.0

May

0.9 

1.0 

.8 

.9 

.9

.9

.6 

.6 

.S

.8 

.8

.6 

.5

.6

.5 

.4

.6 

.7 

.8 

1.1 

1.1

1.1 

1.0 

.8 

.6 

.4 

.4

XmdiBUDi

3.6

2.5 

2.5

54

13 

17 

3.8 

2.9 

1.1 

.9 

.4 

.6 

.3

17

June

0.6 

.9 

.9 

.7 

.6

.5

.5 

.3 

.3

.4 

.3

.2 

.2

.2

.2 

.4

.2

.1 

.1 

.1 

.1

.2 

.2 

.3 

.4 

.3

July

0.3 

.4 

.2 

.1 

.2

.1

0 

0 

0

.1 .1

0

.1 

.1

.1.1

0

0

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mfrp-faiflTpa

1.3 

1.6 

1.2

1.2

2.0 

3.7 

1.0 

.8 

.4 

.1 

O 

0 

0

0

Aug.

0 

0 

0 

0 

0

0

.2 

.2

.3

.1 

.1

.2 

0

.1 

.2

.1

a. 2 

a. 3

a. 3 

a.4 

a. 4 

a.4 

a. 5

a. 5 

a. 5 

f.6 

.2 

.1 

.1

Mean

2.16 

2.10 

1.90

5.81

4.25 

5.18 

2.79 

1.78 

.73 

.34 

.07 

.21 

.13

1.79

Sept.

0.1 

.1 

0

.1

0 

0

.2 

0 

.1

.2 

.1

.1 

.1

.1

.1

.2 

.2

.1 

.1 

.2 

.3 

.2

.2 

.2 

.3 

.2 

.2

Run-off in 

acre-feet

133 

125

117

4,210

261 

298 

172 

.106 

45 

20 

4.4 

13 

7.9

1,300

a Ho gage-height record; discharge computed on basis of discharge 

f Discharge computed from partly estimated gage-height record.

easurements or Interpolated.

9 ~2 400454 O - 41 - 6

TOTTED STATES DEPARTMEHT OF THE IMTERIOR 

Geological Surrey
74 SANTA ANA RIVER BASIN

Chino Creek near Prado, Calif.

Location.- Water-stage recorder, lat. 33°53'40", long. 117°38'40", in El Rlncon grant, 

on Chlno-Rincon road, 1 mile west of Prado, Riverside County. Altitude of gage, 460

IGGt 

Records available.- January 1929 to September 1940 (discontinued). 

Average discharge.- 11 years, 9.40 second-feet.

Extremes.- Maximum discharge during year, 722 second-feet Jan. 8 (gage height,9.12 feet) 

from rating curve extended above 250 second-feet by logarithmic plotting; minimum 

dally, 0.4 second-foot on several days in July. minimum

1929-40: Maximum discharge, 5,200 second-feet Mar. 2, 1938, by slope-area method; 

minimum, 0.1 second-foot at times during 1935-37.

Remarks.- Records good except those for periods of backwater from construction, which are 

fair; and periods of backwater from the Santa Ana River, which are poor. Many diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

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.

0.6 

.5 

.5 

.5 

.5

.6 

.6 

.7 

.7 

.6

.6 

.6 

.6 

.6 

.7

.6 

.7 

.7 

.8 

1.0

1.1 

1.1 

2.6 

2.6 

1.9

1.8 

1.6 

1.9 

1.8 

1.7 

2.0

Hov.

2.2 

2.3 

2.6 

4.6 

5

4.8 

4.7 

5 

6 

4.8

4.4 

4.2 

4.2 

4.2 

4.2

4.4 

6 

7 

9 

7.5

6.5 

3.6 

2.5 

2.2 

2.0

2.2 

2.5 

2.8 

2.9 

2.9

Dec.

2.9 

3.1 

3.0 

3.0 

3.2

3.7 

3.9 

4.1 

6.5 

6.5

6 

6.6 

4.8 

4.2 

3.9

3.6 

3.6 

3.7 

3.7 

3.8

4.1 

4.1 

4.3 

6.6 

5

4.8 

4.8 

4.8 

4.8 

5 

6

Jan.

6 

6 

5 

6.6 

7

6 

7.6 

330 

41 

21

16 

16 

12 

10 

8.5

8 

8 

8.6 

8.6 

8

8 

8 

8.5 

19 

11

9.6 

9 

8.6 

8 

8 

8.5

Feb.

28 

70 

77 

125 

26

17 

16 

13 

12 

11

11 

11 

10 

11 

12

11 

10 

9.6 

8.6 

7.B

7.6 

7.5 

7.6 

7 

7.6

20 

11 

10 

11

Month

Oot 

Hov 

Dec

C

Jan 

Pet 

Mar 

Apr

3SJui £*Bep

fl

11..............

Si:::::::::::::

star year 1939-4 0......................

Mar.

11 

10 

10 

9.6 

9.6

9.6 

9 

9 

9.6 

9.6

9 

9 

6.6 

8 

9

7.5 

6.5 

06.6 

06 

06

6.5 

5.5 

5.5 

6.5 

6

6.6 

6.5 

5.5 

6 

5 

16

Apr.

74 

25 

11 

10 

10

10 

9.5 

8 

7.6 

7.5

7 

6 

5.5 

6.6 

6

6 

6.5 

6.6 

6.6 

6

6 

4.7 

5 

5 

4.7

8 

10 

7 

6.5 

6

8eoondfoot-days

32.6 

124.1 

135.9

2,303.5

642.5 

583.6 

246.0 

291.9 

112.8

14.6 

19.2 

21.0

2,276.7

May

6.6 

6 

6.6 

6.5 

6.6

5 

06 

o4.5 

04.6 

04.0

3.8 

4.1 

3.8 

3.7 

3.6

3.3 

3.2 

3.0 

2.9 

2.7

3.0 

2.7 

2.6 

2.5 

2.6

2.6 

2.5 

2.6 

2.6 

2.6 

2.6

Ma^immi

2.6 

9

6.6

123

330 

126 

16 

74 

6.5

.7 

.7

330

June

2.6 

2.5 

2.6 

2.6 

2.6

2.6 

2.6 

2.7 

2.6 

2.5

2.3 

2.3 

2.2 

2.1 

2.0

1.9 

2.2 

1.6 

1.4 

1.1

1.2 

1.1 

.9 

.9 

.9

.9 

.7 

.7 

.7 

.7

July

0.6 

.6 

.6 

.7 

.6

.6 

.6 

.6 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4

.4 

.4 

.4

.4 

.4 

.5 

.5 

.5 

.6

mninmni

0.5 

2.0 

2.9

.2

5 

7 

5 

4.7 

2.5

.4 

.6

.4

Aug.

0.5 

.6 

.5 

.6 

.6

.6 

.6 

.6 

.5 

.6

.5 

.5 

.5

.6 

.6

.7 

.6 

.6 

.7 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7 

.7

Mean

1.05 

4.14 

4.38

6.31

20.7 

20.1 

7.90 

9.73 

3.64

.47 

.62 

.70

6.22

Sept.

0.7 

.7 

.7

. e.7

Run-off in 

acre-feet

64

246 

270

4,660

1,270 

1,160 

486 

579 

224

29 

38 

42

4,520

Peak discharge.- Jan. 8 (11 a.m.) 722 sec.-ft.; Feb. 3 (11:30 p.m.) 416 sec.-ft.j Apr. 1 (10a.m.) 

141 sec.-ft.

c Backwater from construction at Prado Dam; discharge interpolated, 

e Backwater from Santa Ana River; discharge estimated.
SANTA ANA RIVER BASIN 

San Antonio Creek near Claremont, Calif.

75

Location.- Water-stage recorder and broad-crested weir control, lat. 34 0 12'50", long. 

117"40'00", in NWtSEi sec. 36, T. 2 N., R. 8 W., at highway bridge, half a mils 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.

Records1 available.- March 1901 to September 1940.

Average dl scharge.- 23 years (1917-40), 10.0 second-feet. Average combined discharge of 

creeK ana conduit, 23 years (1917-40), 22.5 second-feet.

Extremes.- Maximum discharge during year, 102 second-feet Jan. 8 (gage height, 2.55 feet) 

fromrating curve extended above 30 second-feet on basis of broad-crested weir control formula; minimum, 1.4 second-feet Aug. 29, 30, and 31.

1917-40: Maximum discharge, 17,800 second-feet Mar. 2, 1938, by rainfall-run-off 

studies; minimum, less than 0.1 second-foot for several days during October 1934.

Remarks.- Records good, 

station (see p. 77).

Southern California Edison Co.'s conduit diverts water above

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

SO

21

22

23

24

25

26

27

26

29

30

31

Oot.

14

10

9

8

7

9

7

6.5

6

4.8

4.2

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.6

2.6

2.7

2.7

2.7

2.6

2.6

2.6

2.5

2.4

2.4

HOT.

2.4

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.6

2.6

2.5

2.5

2.4

2.6

2.5

2.7

2.7

2.7

2.7

2.6

2.6

2.5

2.4

2.4

2.3

2.3

2.3

2.2

2.2

2.2

-

Dec.

2.0

2.0

1.9

1.7

1.9

1.9

1.9

1.9

1.9

1.8

1.8

2.1

1.8

1.8

1.8

1.3

1.8

l.S

1.8

1.8

1.9

1.9

2.4

2.1

2.0

1.8

1.9

1.9

2.0

1.9

1.8

Jan.

l.S

1.8

1.8

2.0

1.8

1.8

5.5

37

15

6

5.5

5

4.4

3.7

3.3

3.2

3.2

3.3

3.1

3.1

3.2

3.1

4.3

3.6

3.1

2.7

2.6

2.5

2.4

2.3

2.6

Feb.

18

13

7.5

7

7

6.5

6.5

6.5

5.5

4.5

4.7

4.8

5

6

6

5

4.7

4.5

4.5

4.3

4.0

4.4

4.3

3.6

23

37

32

14

20

-

-

Month

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

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

Mav. ....... ..... . . . ...

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

Water year 1939-

Mar.

21

23

26

28

26

26

24

22

22

21

20

19

18

17

16

16

16

15

22

14

14

13

12

12

12

14

10

9.5

9.5

8.5

16

Apr.

13

11

9.5

9

S

8

S

7.5

7

7

7

7

7

7.5

9

9.5

9.5

8.5

8

7.5

7.5

7.5

7

7

7

12

9.5

S.5

7.5

7

-

Secondfoot-days

1 ^fi 9 .LOO. 6

74.4

58.8

4,190.5

144.7

273.8

542.5

249.0

155.S

71.3

62.2

54.0

55.9

1,880.6

May

7

6.5

7

7

7

6.5

6.5

6

6

6

5.5

5.5

5

5

5

5

5

5

4.7

4.4

4.3

4.0

4.0

3.7

3.6

3.7

3.6

3.6

3.4

3.2

3.1

Maximum

14

2

rf 

 (

2.4

12.2

37

37

28

13

7

2.9

2.2

1.9

2.1

37

June

Z'A2 9

2.7

2.7

2.6

2.5

2.5

2.5

2.5

2.4

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.3

2.3

2.2

2.0

2.2

2.3

2.3

2.3

2.3

2.3

July

2.2

2.2

2.2

2.2

2.1

2.0

2.0

2.0

1.9

1.9

1.9

1.9

l.S

1.8

1.9

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.9

1.9

2.0

2.0

2.0

2.1

2.2

2.1

2.0

IHpjflpTm

2.4

2.2

1.7

.9

l.S

3.6

6.5

7

3.1

2.0

l.S

1.6

1.6

1.6

Aug.

1.9

1.9

1.9

1.9

1.8

1.8

l.S

1.9

1.9

1.8

l.S

1.7

1.7

1.7

1.8

l.S

1.3

l.S

1.7

1.7

1.7

1.6

1.6

1.6

1.7

1.7

1.6

1.6

1.6

1.6

1.6

Mean

4#46

2.48

1.90

11.5

4.67

9.44

17.5

8.30

5.03

2.38

2.01

1.74

1.S6

5.14

Sept.

1.6

1.6

1.7

1.7

1.8

1.8

1.8

1.8

1.8

2.0

2.1

2.1

2.1

2.1

2.1

2.1

2.0

2.0

2.0

2.0

2.0

1.9

1.8

1.8

1.7

1.7

1.7

1.7

1.7

1.7

Run-off in 

acre-feet

274

148

117

S,310

287

543

1,080

494

309

141

123

107

111

3,730
76 SANTA ANA RIVER BASIN

Combined discharge, in second-feet, of San Antonio Creek and Southern California Edison Go's conduit 

near Claremont, Calif., water year October 1939 to September 1940

Day

1

8

3

4

S

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

2P

26

27

88

29

30

31

Oct.

28

26

27

26

25

27

25

24

24

23

22

20

21

20

23

23

23

23

19

18

18

18

17

17

17

17

17

19

18

17

17

Sov.

17

14

14

14

14

14

14

14

15

14

16

16

15

16

16

15

15

15

15

15

14

14

12

12

12

12

12

12

13

14

-

Dec.

14

14

13

13

14

15

14

14

13

13

13

12

13

13

13

12

12

13

12

12

12

12

14

12

12

12

12

12

12

11

11

Jan.

11

11

12

12

11

11

15

37

20

18

18

19

18

19

19

19

20

21

22

23

23

23

24

24

22

21

21

20

20

20

21

Feb.

26

25

28

26

27

26

26

26

26

26

26

26

26

27

27

26

26

26

26

25

25

25

25

25

37

37

36

35

41

_

-

Month

Karch .....................................

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

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

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

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

Water year 1939-4 0........... ...........

Mar.

42

43

46

48

47

47

45

43

43

41

40

39

38

37

36

36

36

35

35

34

34

33

32

32

32

31

32

32

30

30

37

Apr.

34

32

30

30

29

29

29

28

28

28

28

28

28

28

30

30

30

30

29

28

28

28

28

28

28

33

30

30

28

27

Secondfoot-days

659

425

394

5,963.5

595

809

1,166

874

800

580

470

393

344

7,509

Hay

27

28

28

28

28

28

28

27

27

27

26

26

26

26

25

26

26

26

26

25

25

25

25

25

25

24

24

24

23

23

23

Mflyjunim

28

17

15

131

37

41

48

34

28

23

17

13

12

48

June

23

23

22

21

22

20

20

20

20

20

20

20

20

20

19

19

19

19

19

19

18

18

18

18

18

17

17

17

17

17

July

17

17

17

16

17

16

16

16

15

16

16

15

16

16

16

16

15

15

15

15

15

14

14

14

14

14

14

14

13

13

13

H1i?1npTO

17

12

11

9

11

25

30

27

23

17

13

12

10

10

Aug.

13

13

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

12

12

12

12

13

13

13

13

13

13

13

12

12

12

Mean

on T fiJ.«G

14.2

12.7

16.3

19.2

27.9

37.6

29.1

25.8

19.3

15.2

12.7

11.5

20.5

Sept.

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

10

10

10

Run-off in 

acre-feet

1,310

843

781

11,820

1,180

1,600

2,310

1,730

1,590

1,150

932

780

682

14,890
SANTA ANA RIVER BASIN V7 

Southern California Edison Co.'s conduit near Claremont, 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 1940. 

Average discharge.- 23 years, 12.5 second-feet.

Remarks.- Conduit diverts water from San Antonio Creek in SEi sec. 25, T. 2 N., R. S W., 

1 mile upstream from gaging station on San Antonio Creek near Claremont. Water is 

used for power developnent 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 1939 to September 1940

Day

1

S

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

S2

23

24

25

26

27

28

29

SO

51

Oct.

14

16

18

18

18

18

IS

18

18

18

IS

17

18

17

20

20

20

20

16

15

15

15

14

14

14

14

14

16

16

15

15

Hov.

15

12

12

12

12

12

12

12

12

11

13

13

13

13

13

12

12

12

12

12

11

11

10

10

10

10

10

10

11

12

Dec.

12

12

11

11

12

13

12

12

11

11

11

1O

11

11

11

10

10

11

10

10

10

10

12

10

10

10

10

10

10

9.5

9.5

Jan.

9.5

9.5

10

10

9.5

9.5

9.5

O

4.6

12

13

14

14

15

16

16

17

18

19

20

20

20

20

20

19

18

18

18

18

18

18

Feb.

7.5

12

20

19

20

20

20

20

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

14

O

3.5

21

21

-

Month

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

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

Calendar year 1939 ......................

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

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

toy.......................................

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

Water year 1939-4

Mar.

21

20

20

20

21

21

21

21

21

20

20

20

20

20

20

20

20

20

13

20

20

20

20

20

2O

17

22

22

21

21

21

Apr.

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

20

20

-

Seoondfoot-days

517

352

333.0

1,775.2

453.1

534.0

623

628

643

515

408

331

2S4.0

5,621.1

May

20

21

21

21

21

21

21

21

21

21

21

21

21

21

20

21

21

21

21

21

21

21

21

21

21

20

20

20

20

20

20

Haxijnuai

20

15

13

20

20

21

21

21

21

20

15

11

10

21

June

20

20

19

18

19

18

18

18

18

18

18

18

18

18

17

17

17

17

17

17

16

16

16

16

16

15

15

15

15

15

-

July

15

15

15

14

15

14

14

14

13

14

14

13

14

14

14

14

13

13

13

13

13

12

12

12

12

12

12

12

11

11

11

lUn^miTH

14

10

9.5

O

0

O

13

20

20

15

11

10

8.5

0

Aug.

11

11

11

11

11

11

11

11

11

11

11

11

11

11

1O

10

10

10

10

10

1011111111

111111

10

10

10

Mean

16.7

11.7

10.7

4.86

14.6

18.4

20.1

20.9

20.7

17 2

13 2

iol?

9.47

15.4

Sept.

10

10

10

10

10

10

10

10

10

10

10

10

10

10

9.5

9.5

9.5

9

9

9

9

9

9

9

9

9

9

8.5

8.5

8.5

-

Run-off in 

aore-feet

1,030

698

660

3,520

899

1,060

1,240

1,250

1,280

1,020

809

657

563

11,170
76 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. 4 

S., R. 9 W., five-eighths 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 1940.

Average discharge.- 20 years, 8.04 second-feet.

Extremes.- Maximum discharge during year, 50 second-feet (estimated) Feb. 3 (gage height, 

1.60 feet); no flow for several months.

1920-40: 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 pCor. Irvine Co. and Serrano and Carpenter Irrigation Districts 

divert above gage. Flow completely regulated by Santiago Reservoir.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

S

9

10

11

12

13

14

15

16

17

18

19

20

2128

23

24

25

26

27

28

29

30

31

Oot.

0.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Hov. Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

Jan.

0.1

.1

.1

.2

.2

.2

.3

.8

.4

.3

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.7

.6

.4

.3

.2

.2

.2

.1

.1

Feb.

0.3

.3

3.0

.8

.6

.5

.4

.3

.2

.2

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.4

.3

.3

.2

.2

_

-

Month

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

Calendar year 1939 ......................

Peb 

Mar

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

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

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

Water year 1939-40. .....................

Mar.

0.2

.2

.2

.2

.2

.2

.2

.2

.3

.5

.5

.4

.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.9

Apr.

1.0

.5

.5

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

.4

.4

.3

.2

.1

-

Secondfoot -days

1«8

0

2.1

48.62

7.3

9.7 

6.4

5.3

.5

0

0

0

0

33.1

May

0.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maxdjnum

0.2

0

.2

7.5

.8

3.0 

.9

1.0

.1

0

0

0

0

3.0

June July

Minimum

0

0

0

0

.1

.1 

.1

0

0

.0

0

0

0

0

Aug.

Mean

0.06

0

.07

.13

.24

.33 

.21

.18

.OS

0

0

0

0

.09

Sept.

Run-off in 

acre-feet

3.6

0

4.2

96

14

19 

13

11

1.0

0

0

0

0

66

Hpte.- Discharge computed on basis of one measurement, field estimate of flow, records for 

Santiago Creek at Santa Ana and rainfall records at Santa Ana.
SANTA ANA RIVER BASIN 79

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 1929 to September 1940. 

Average discharge.- 11 years, 5.37 second-feet.

Extremes.- Maximum discharge during year, 376 second-feet Feb. 3 (gage height, 2.S5 feet); 

no flow during most of year.

1929-40: 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 poor. Irvine Co. and Serrano and Carpenter Irrigation Districts divert water above gage.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

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. HOT. Dec. Jan.

0

0

0

0

0

0

0

6

0

0

0

0

0

12

13

.5

0

0

0

0

0

0

30

12

0

0

0

0

0

0

0

Feb.

20

15

70

4.5

.5

0

0

0

0

0

0

0

0

l.S

0

3.0

1.0

0

0

0

0

0

0

0

15

.S

0

0

0

-

Month

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

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

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

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

Water year 1939-4

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

22

Apr.

11

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.9

.7

0

0

0

Secondfoot-days

0

0

0

47S.O

73.5

131.6

22

13.6

0

0

0

0

0

240.7

May

Maximum

0

0

0

36

30

70

22

11

0

0

0

0

0

70

June July

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

0

0

0

1.31

2.37

4.54

.7

.45

0

0

0

0

0

.66

Sept.

Run-off in 

acre-feet

0

0

0

948

146

261

44

27

0

0

0

0

0

47S

Hote.- Discharge computed on basis of partial gage-height records, discharge measurements, and 

records for Santa Ana River at Santa Ana.
SANTA ANA RIVER BASIN

Irvlne ranch drainage canal near Tustin, Calif.

Legation.- Water-stage recorder, lat. 33°40'30", long. 117°50'05" (revised), In San 

 joaquin grant, on Lane Road Bridge, 5 miles south of Tustin, Orange County. Altitude 

of gage, about 26 feet.

Drainage area.- 93 square miles.

Records available.- November 1930 to September 1940.

Extremes.- Maximum discharge during year, 1,150 second-feet Feb. 3 (gage height, 11.30 

reet ); no flow for several periods.

1930-40: Maximum discharge, 5,710 second-feet Mar. 2, 1938; no flow for several 

periods during 1932-40.

Remarks.- This canal carries storm run-off from foothills and drains the soil In a small 

area between Tustin and the ocean.

Cooperation.- Records furnished by Orange County Flood Control District, through M. N. 

Thompson, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

SO

81 

28 

83 

24 

25

26 

27 

88 

89

30 

31

Oct.

0.2 

.1

.1

.2

.2 

.2 

.1

Hov.

0.2 

.4

.2 

.2 

.1 

.1

.1

Dec. Jan.

0.4 

.5 

.3 

.3 

.3

.2

1.1 

28 

3.5 

2.5

21 

9.5 

.S

Feb.

42 

12 

159 

10

.2 

.2

.1

.1

3.1

.2

.1 

.1 

.1

Month

Dot 

Hov 

Dec

C

Jan 

Pet 

Mar 

Apr

Jun 

Jul 

Aug 

Sep

W

alendar year 

uapy. . » . .

11................ .....................

ater year 1939-4

Mar.

0.1 

.2 

.2 

.2 

.2

.2

.1 

.1

.1 

20

Apr.

32 

.5 

.5

.4 

.4

.3 

.3 

.2 '.2 

.2

.2 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

1.9 

1.1

Seoondfoot-days

1.37 

2.11 

1.68

_

70.4 

227.95 

22.58 

39.85 

1.85 

2.30 

6.9 

1.90 

.44

379.33

May

0.1

.1

.1 

.1 

.1 

.1

Mqx^Tff11^

0.2 

.4

_

28 

159 

20 

32 

.1 

.1 

.3 

.2 

.1

159

June

0.1.1

.1 .1 .1 .1 .1

.1 .1 .1 .1 .1

.1 .1

.1 .1

July

0.2 

.2 

.2 

.2 

.2

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

IHTHimim

0

_

0 

0

.2 

0 

0

0

Aug.

0.2 

.2

.1

.1

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Mean

0.044 

.070 

.054

_

2.27 

7.86 

.73 

1.33 

.060 

.077 

.22 

.061 

.015

1.04

Sept.

0.1 

.1

Run-off in 

acre-feet

2.7 

4.2 

3.3

_

140 

452 

45 

79 

3.7 

4.6 

14 

3.8 

.9

753

Note.- Ho flow, or discharge less than 0.1 second-foot on days for vfalch no figures are given.
SAN GABRIEL RIVER BASIN 81

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

(Formerly published as San Gabriel River near Camp Bonita, Calif.)

Location.- Water-stage recordery lat. 34014'12", long. 117°48'30", in SEi sec. 22, T. 2 

N., K. 9 W., 1,000 feet upstream from mouth of Graveyard Canyon, 2fc miles upstream 

from confluence with west fork,and 2i miles west of Camp Bonita, Calif.

Records available.- December 1932 to September 1940.

Extremes.- Maximum discharge during year, 1,360 second-feet Jan. 8 (gage height, 8.73 

reetj; minimum daily, 14 second-feet Sept. 30.

1932-40: 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. fc. Meager, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

8

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17ie

19

20

81

as

23

£4

85

86

27

86

29

SO

31

Oct.

36

34

32

29

27

 28

31

28

26

24

25

25

25

25

26

25

25

26

26

26

25

25

25

25

25

25

25

25

24

23

23

Hcv.

23

22

22

22

22

21

20

22

23

22

22

21

21

21

20

21

22

21

21

20

20

20

20

20

20

21

21

22

21

21

-

Dec.

21

22

21

20

20

20

21

23

22

22

21

21

20

19

19

19

19

19

20

19

19

19

28

23

21

21

21

20

20

19

19

Jan.

18

17

16

25

28

27

57

430

100

80

62

62

54

48

46

42

42

40

40

42

45

49

62

45

38

37

35

34

34

34

35

Feb.

74

93

131

130

100

85

80

75

71

69

67

64

60

62

60

54

52

51

52

49

49

52

56

54

139

315

154

122

168

_

-

Month

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

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

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

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

Water year 1939-4 0. ....... .

Mar.

155

140

129

120

112

106

100

95

91

88

85

82

80

78

76

73

71

73

71

67

64

62

62

60

60

60

62

62

58

56

98

Apr.

100

80

78

78

78

78

75

73

71

69

67

64

67

69

73

73

71

69

69

67

64

67

64

62

60

75

80

78

73

71

-

Seoondfoct-days

819

635

638

14,255

1,724

2,588

2,596

2 t 163

1, 521

949

705

553

484

15,375

May

69

67

67

62

60

60

58

54

52

51

51

51

49

48

48

48

46

48

45

43

42

42

40

40

40

40

42

42

40

37

37

Kfiyl-flmm

36

23

28

190

430

315

155

100

69

37

28

20

18

430

June

37

36

36

35

35

35

36

35

34

34

32

32

31

31

31

31

31

31

30

30

30

29

29

28

28

29

28

28

29

28

July

28

26

26

26

25

25

25

24

24

23

23

23

23

23

23

23

23

23

22

22

21

21

20

20

20

20

21

21

21

20

20

Minimum

23

20

19

14

16

49

56

60

37

28

20

15

14

14

Aug.

20

19

18

18

18

19

19

18

18

18

18

19

19

19

19

19

19

18

17

17

17

17

17

17

17

17

17

17.

17

16

15

Mean

26.4

21.2

20.6

39.1

55.6

89.2

83.7

72.1

49.1

31.6

22.7

17*8

16.1

42.0

Sept.

15

17

17

17

18

IS

18

17

17

17

17

17

16

16

16

16

16

16

16

16

15

15

16

16

15

15

15

15

15

14

Run-off in 

acre-feet

1,620

1,260

1,270

28,280

3,420

5,130

5,150

4,290

3,020

1,880

1,400

1,100

960

30,500
82 SAN GABRIEL RIVER BASIN

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.

Drainage area.- 211 square miles.

Records available.- 1894 to September 1940.

Average discharge.- 44 years (1896-1940), 111 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, 45 years (1895-1940), 158 second-feet.

Extremes.- Maximum daily discharge during year, 506 second-feet June 24; no flow Aug. 28 

to aept. 30.

1894-1940: 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, 

and 1940.

Remarks.- Records good. During the year, flow at station was completely regulated by 

Morris Reservoir of Pasadena Water Department. Azusa canal (formerly power canal of 

Southern California Edison Co.) diverts above high-water line of Morris Reservoir at 

point about 3 miles above station.

Cooperation.- Results of 43 discharge measurements furnished by Los Angeles County Flood 

control District, through H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

30 

30 

30 

30

30 

30 

30 

30 

41

57 

56 

56 

56 

56

56 

57 

57 

57 

57

57 

57 

57 

57 

57

57 

57 

57 

57 

56 

56

Kov.

56 

56 

56 

56 

56

56 

56 

57 

57 

56

56 

54 

54 

54 

54

54 

54 

54 

56 

58

60 

60 

60 

61 

61

61 

61 

61 

61 

61

Dec.

61 

60 

60 

60 

60

60 

60 

56 

S3 

53

53 

53 

53 

53 

53

53 

53 

53 

52 

51

51 

51 

52 

52 

52

52 

52 

52 

52 

52 

52

Jan.

52 

52 

52 

53 

52

52 

57 

64 

110 

129

129 

129 

129 

129 

100

77 

77 

77 

77 

75

75 

75 

75 

75 

75

75 

75 

77 

77 

77 

77

Month

Oct 

Kov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

ember. .......................

alendar year 193

ater year 1939-4

Feb.

82 

80 

SO 

79 

77

77 

77 

77 

77 

77

77 

78 

78 

78 

7S

78 

78 

78 

78 

80

SO 

7S 

78 

78 

82

80 

80 

82 

80

Mar.

7S 

73 

80 

77 

75

77 

77 

77 

77 

77

77 

77 

77 

77 

78

78 

78 

78 

7S 

78

78 

78 

78 

78 

78

7S 

78 

77 

77 

a77 

a40

Secondfoot-days

1,501 

1,717 

1,680

18,423.5

2,505 

2,281 

2,366 

34.9 

13.6 

3,818.1 

1,799.6 

757.4 

0

18,473.6

Apr.

a6 

a4.0 

f2.8 

1.6 

1.1

1.0 

.8 

.7 

.6 

.6

.5 

.5 

.4 

.5 

.5

.5 

.5 

.5 

.6 

.6

.7 

1.2 

3.1 

1.1 

.6

.8 

.8 

.8 

.8 

.7

Maximum

57 

61 

61

316

129 

82 

80 

6 

.6 

506 

406 

52 

0

506

May

0.6 

.6 

.5 

.5 

.5

.4 

.4 

.4 

.5 

.5

.5 

.5 

.5 

.5 

.4

.4 

.4 

.3 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Minimum

30 

54 

51

6.5

52 

77 

40 

.4 

.3 

.3 

.7 

0 

0

0

June

0.4 

.4 

.5 

.6 

.5

.4 

.4 

.4

.4 

.3

.3 

.3 

.3 

.8 

1.1

1.4 

113 

190 

316 

344

339 

355 

432 

506 

497

159 

4.0 

2.6 

213 

333

July

344 

406 

24S 

4.0 

2.2

1.6 

1.2 

.9

.7 

24

43 

48 

51 

53 

53

52 

51 

48 

46 

46

46 

25 

4.0 

2.6 

2.0

1.4 

4.0 

48 

48 

47 

a48

Mean

48.4 

57.2 

54.2

50.5

80.8 

78.7 

76.3 

1.16 

.44 

127 

58.1 

24.4 

0

50.5

Aug.

a49 

a 50 

f50 

50 

51

51 

52 

52 

52 

52

52 

52 

52 

51 

26

3.7 

2.6 

2.0 

1.7 

1.4

1.3 

1.0 

.7 

.4 

.3

.2 

.1 

0 

0 

0 

0

Run-off in 

acre-feet

2,9SO 

3,410 

3,330

36,530

4,970 

4,520 

4,690 

69 

27 

7,570 

3,570 

1,500 

0

36,640

Sept.

Run- off In 

acre-feett

3,509 

2,520 

2,455

56,315

7,648 

13,337 

9,375 

7,105 

4,785 

2,717 

2,079 

1,573 

1,513

58,616

tComblned run-off 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. These figures of run-off are equivalent to combined records of San Qabrlel 

River and Southern California Edison Co.'s canal as published from 1894 to 1933.

a No gage-height record; discharge computed on basis of records of release and leakage from 

Morris Reservoir furnished by city of Pasadena.

f Discharge computed from partly estimated gage-height record.
SAN GABRIEL RIVER BASIN 83 

San Gabriel River at Plco, Calif.

Location.- Water-stage recorder, lat. 34°00'20", long. 118004'05", In Paso de Bartolo 

grant, at Beverly Boulevard Bridge, half a mile east of Pioo, Los Angeles County. 

Altitude of gage, about 180 feet.

Records available.- October 1928 to September 1940.

Average discharge.- 12 years, 26.S second-feet.

Extremes.- Maximum discharge during year, 2,110 second-feet Feb. 1; no flow for several

1928-40: Maximum discharge, 22,700 second-feet 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.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

S

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

23

27

28

29

30

31

Oct.

38

32

26

34

38

46

49

46

38

32

42

49

38

34

46

38

33

46

34

42

53

49

49

49

46

38

33

34

38

29

19

HOT.

19

24

24

21

24

29

32

26

21

15

11

12

11

11

IS

16

19

19

21

19

15

16

18

12

15

16

15

10

10

8

Dec.

9

7.5

10

13

16

16

16

24

24

34

19

13

13

15

21

29

34

29

38

34

29

21

16

19

19

19

21

21

21

19

21

Jan.

26

29

29

26

29

34

47

544

78

73

91

144

124

104

97

46

38

46

46

53

S3

53

63

91

63

73

84

68

53

49

53

Feb.

346

341

434

17S

7S

53

58

53

49

42

42

46

49

53

58

53

53

58

53

49

53

63

46

42

61

125

63

63

63

-

Month

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

Ihy..... ..................................

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

Water year 1939-4 0...... ................

Mar.

53

46

42

5S

53

49

46

49

49

53

53

49

53

49

49

53

58

63

53

49

49

53

46

5S

46

42

49

46

46

49

58

Apr.

84

49

53

49

46

42

42

38

42

34

29

9

1.8

.5

.8

4.3

10

24

19

11

8

7.5

10

5.5

2.1

10

29

21

24

26

Seoondfoot-days

1,228

527

634.5

12,768.6

2,422

2,740

1,574

731.5

315.2

0

0

0

0

10,172.2

May

29

24

21

21

19

13

9

10

11

12

13

9

11

16

16

7.5

8

10

24

8

4.7

3.4

3.S

3.0

2,9

4.3

1.6

0

0

0

0

M^Y^^mni

53

34

672

544

434

63

84

29

0

0

0

0

544

June July

Minimum

19

8

7.5

0

26

42

42

.5

0

0

0

0

0

0

Aug.

Mean

39.6

17.6

20.5

35.0

78.1

94.5

50.8

24.4

10.2

0

0

0

0

27.8

Sept.

Run-off in 

acre-feet

2,440

1,050

1,260

25,340

4,800

5,430

3,120

1,450

625

0

0

0

0

20,180
84 SAN GABRIEL RIVER BASIN

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

Location.- Water-stage recorder, lat. 33°48'40", long. 118 005'30", In Los Alamitos grant, 

on spring Street Bridge, l£ miles west of Los Alamltos, Orange County. Altitude of 

gage, about 22 feet.

Records available.- October 1936 to September 1940 In reports of Geological Survey;

1928-36, in rues of office of Los Angeles County Flood Control District, Los Angeles, 

Calif.

Extremes.- Maximum discharge during year, 1,400 second-feet Feb. 3; no flow during most 

of year.

1936-40: Maximum discharge, 27,300 second-feet (estimated) Mar. 2, 193S; no flow 

during most of each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Bay

1

2

3

4

5

6

7

S

9

10

11

18

13

14

IS

16

17

18

19

20

2188

83

84

85

86

27

28

29

SO

31

Oct. Hov. Dec. Jan.

0

0

0

0

0

0

0

166

6.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

74

146

192

129

2.S

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

_

-

Month

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

Calendar year 1939. .....................

Jan 

Pet 

Mar

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

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

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

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

Water year 1939-4 0....... ...............

Mar. Apr.

Seoondfoot-days

0

0

0

193. S

192.5 

543. S 

0

0

0

0

0

0

0

736.3

May

Mfly<fimm

0

0

0

75

186 

192 

0

0

0

0

0

0

0

192

June July

Minimnn

0

0

0

0

0 

0 

0

0

0

0

0

0

0

0

Aug.

Mean

0

0

0

.53

6.21 

IS. 8 

0

0

0

0

0

0

0

2.01

Sept.

Run-off in 

aero-feet

0

0

0

383

382 

1,080 

0

0

0

0

0

0

0

1,460
SAN GABRIEL RIVER BASIN 85 

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

Location.- Water-stage recorder, lat. 34°14 I 3011 , long. HVSl'SO", near center of sec. 19, 

T. 2 N., R. 9 W., a quarter of a mile upstream from Camp Rincon, hal f a mi le downstream 

from North 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 1940.

Average discharge.- 13 years, 60.6 second-feet.

Extremes.- Maximum discharge during year, 1,220 second-feet Jan. 8; minimum daily, 6.5 

second-feet Aug. 23-25, Aug. 28 to Sept 1, Sept. 12.

1927-40: Maximum discharge not determined, occurred 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. HeOger, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

20

21 

28 

83 

84 

25

26 

87 

28 

29 

SO 

31

Oct.

50 

44 

37 

39 

33

32 

32 

31 

31 

29

2S 

26 

26 

25 

25

24 

24 

24 

22 

20

20 

20 

19 

20 

20

19 

14 

13 

13 

14 

16

lor.

18 

19 

19 

IS 

16

15 

14 

22 

25 

17

12 

14 

15 

18 

19

19 

19 

18 

15 

14

15 

16 

16 

16 

16

16 

17 

17 

18 

IS

Dee.

17 

17 

18 

IS 

19

19 

19 

19 

19 

19

21 

19 

18 

17 

18

18 

18 

17 

15 

16

16 

16 

21 

22 

21

21 

20 

19 

19 

19 

19

Jan.

20 

20 

20 

20 

20

19 

45 

363 

234 

278

48 

47 

109 

109 

83

88

52 

44 

41 

41

34 

36 

42 

37 

24

22 

20 

18 

18 

20 

23

Feb.

106 

204 

369 

340 

252

229 

222 

151 

103 

97

91 

86 

82 

86 

81

62 

3S 

36 

73 

121

35 

29 

34 

23 

132

192 

99 

81 

110

Month

Dot 

HOT 

Dec

0

Jan 

Fet 

Mar 

Apr 

May 

Jim 

Jul 

lug 

Sep

1

alendar year 1939 ......................

nary

11.....................................

ater year 1939-4

Mar.

86 

94 

198 

168 

65

5S 

54 

52 

50 

88

125 

97 

44 

40 

39

39 

38

76 

120 

117

115 

111 

S7 

33 

51

155 

85 

42 

42 

41 

82

Apr.

82 

56 

50 

47 

50

61

59 

5S 

56 

52

36 

34 

33 

31 

34

34 

32 

31 

30 

29

28

27 

27 

27 

27

60 

44 

37 

37 

34

Seoondfoot-days

790 

511 

574

13,766.0

1,995 

3,564 

2,492 

1,243 

769 

541 

618 

640.0 

229.5

13,966.5

"ay

33 

32 

31 

31 

30

30 

30 

28 

27 

26

25 

25 

24 

23 

23

23 

24 

25 

25 

23

22 

22 

21 

20 

20

21 

22 

22 

21 

20 

20

Maximum

50 

25 

22

1,140

363 

369 

198 

82 

33 

20 

26 

96 

8.5

369

June

19 

19 

19 

19 

19

20 

20 

20 

20 

19

19 

19 

19 

19 

20

19 

19 

IS 

18 

16

16 

16 

17 

16 

16

16 

16 

16 

16 

16

July

16 

16 

16 

15 

15

14 

14 

14 

16 

22

23 

21 

21 

21 

20

20 

20 

21 

23 

22

21 

21 

20 

21 

24

23 

23 

23 

23 

23 

26

iiyp^ifflyfl

13 

12 

15

7.5

18 

23

33 

27 

20 

16 

14 

6.5 

6.5

6.5

Aug.

26 

24 

24 

23 

22

22 

21 

21 

20 

35

70 

96 

85 

25 

12

9.5 

8 

8 

7.5 

7.5

7 

7 

6.5 

6.5 

6.5

7 

7 

6.5 

6.5 

6.5 

6.5

Mean

25.5 

17.0 

18.5

37.7

64.4 

123 

80.4 

41.4 

24.8 

18.0 

19.9 

20.6 

7.65

38.2

Sept.

6.5 

7.5 

8 

8.5 

8.5

8

7.5 

7.5 

7 

7

7 

6.5 

7 

7.5 

7.5

7.5 

7.5 

8 

8 

8

8 

8 

8 

8.5 

8

8 

8 

7.5 

7.5 

7.5

Run-off in 

acre-feet

1,570 

1,010 

1,140

27,300

3,960 

7,070 

4,940 

2,470 

1,630 

1,070 

1,230 

1,270 

455

27,720

9-838 February 1936

UNITED 8TATES DEPARTMENT OP THE INTERIOR 

Geological Survey
86 SAN GABRIEL RIVER BASIN

Rogers Creek near Azusa, Calif.

Location.- Water-stage recorder, lat. 34°09'55", long. 117°54'20", in NWiNWt sec. 23, T. 

IN., R. 10 W., half a mile upstream from mouth and 2& miles north of Azusa. Altitude 

of gage, about 800 fee"t.

Drainage area.- 6.4 square miles.

Records available.- May 1916 to June 1917 (discharge measurements only), October 1917 to 

September 1940.

Average discharge.- 23 years, 2.87 second-feet.

Extremes.- Maxtoum discharge during year, 196 second-feet Jan. 8 (gage height, 6.25 

feet): from rating curve extended above 30 second-feet by logarithmic plotting; no 

flow for part of year.

1917-40: Maximum discharge, about 2,600 second-feet Apr. 7, 1926; no flow for 

several months of each year.

Remarks.- Records fair. Entire flow diverted above station at times.

Cooperation.- Results of seven discharge measurements furnished by Los Angeles County 

Flood control District, through H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

8

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

SSS

stz

24

25

26

27

88

29

30

31

Oct.

0.6

.9

.6

.5

.4

.5

1.2

.8

.7

.6

.5

.4

.4

.4

.4

.4

.4

.4

f.4

a. 4

a. 3

a. 3

a. 2

a. 2

a.l

f.l

.1

.1

.1

.1

.1

HOT.

0.1.1

.1.1.1

.2

.2

.4

.6

.4

.3

.2

.2

.1

0

0

0

0

0

0

aO

aO

aO

aO

a.l

a.l

a.l

f.l

.1

.1

-

Dec.

0.1.1

0

0

 1

.1.1.1

.2

.2

.3

.3

.2

.2

.2

.1

.1

.1

.1

.2

.2

.1

.6

.6

.3

.3

.2

.2

.2

.2

.2

Jan.

0.2

.2

.2

.6

.4

.3

5.5

38

6

4.0

3.0

3.4

2.9

2.4

2.3

2.2

1.7

1.1

.9

a. 8

a. 7

a. 6

fl.2

1.0

.6

.6

.6

.7

.7

.7

.8

Feb.

18

24

19

f!5

8

5

3.9

3.0

2.5

f2.5

a2.2

al.9

fl.7

1.8

1.6

1.5

1.5

1.5

1.5

1.5

1.2

1.3

1.3

1.1

18

12

6.5

5

8.5

_

-

Month

Jan 

Feb

March. ."..................,................

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

Mav

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

Water year 1939-40......................

Mar.

5

4.4

3.8

3.3

3.1

3.0

2.6

2.5

2.3

2.2

2.0

1.8

1.7

1.6

1.5

1.4

1.3

1.3

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.3

1.1

1.1

1.0

7

Apr.

5.5

2.8

2.2

2.0

1.8

1.7

1.6

1.6

1.5

1.2

1.0

1.0

.7

.4

.8

1.3

.7

.4

.4

.4

.4

.4

.4

.5

.5

7

2.8

1.8

1.4

1.3

Secondfoot-days

12.6

3*7

5.9

375.2

84.3 

172.5

66.1

45.5

17.0

.3

0

0 

0

407.9

May

1.0

.s

.8

.8

.8

.8

.8

.8

.6

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.5

.5

.4

.4

.4

.4

.5

.5

.2

.1

.1

Ma*^

1.2

.6

.6

27

38 

24

7

7

1.0

0

0

0

38

June

>d0.01

July

Wn-tntifln

0.1

0

0

0

.2 

1.1

1.0

.4

.1

0

0 

0

0

Aug.

Mean

0.41

12

!l9

1.03

2.72 

5 95

2.13

1.52

.55

.01

0

0

0

1.11

Sept.

Run-off in 

acre-feet

257 3 12*

745

167 

342

131

90

34

.6

0

0 

0

809

Peak discharge.- Jan. 8 (2 a.m.) 196 see.-ft.5 Feb. 1 (4 p.m.) 69 sec.-ft.j Feb. 25 (5:30 p.m.) 

61 see.-ft.

a Ho gage-height record; discharge computed by interpolation and checked by comparison with records for Fish Creek near Duarte.

d Doubtful gage-height record; mean flow computed on basis of two discharge measurements.

f Discharge computed from partly estimated gage-height records
LOS ANGELES RIVER BASIN 97

Los Angeles River near Downey, Calif.

Location.- Water-stage recorder, lat. 33°57'05", long. 118°10'25", In San Antonio grant, 

on FI re stone Boulevard Bridge, 1 mile upstream from Rio Hondo and 2$ miles west of 

Downey, Los Angeles County. Altitude of gage, about 100 feet.

Drainage area.- 614 square miles.

Records available.- March 1928 to September 194Q.

Average discharge.- 12 years, 62.6 second-feet.

Extremes.- Maximum discharge during year, 7,610 second-feet Jan. 8 (gage height, 6.80 

reetj; minimum dally, 14 second-feet Aug. 1.

1928-40: 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. Heager, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

S

9

10

11

18

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

33

33

33

33

33

32

31

30

30

29

28

29

29

30

31

31

32

33

33

33

33

33

34

34

34

34

32

30

28

26

24

MOT.

22

20

23

26

29

32

35

38

41

40

39

38

37

36

35

33

32

32

31

30

30

29

30

32

33

34

36

37

39

40

-

Dee.

39

3S

37

37

36

35

34

35

36

38

39

40

41

42

42

42

42

41

41

41

41

41

173

84

66

52

45

40

40

40

40

Jan.

40

40

40

441

71

99

924

2,300

884

256

233

231

197

224

231

190

97

58

63

68

58

56

354

212

70

70

82

S8

116

141

21S

Feb.

1,590

1,570

S72

40S

259

237

252

130

106

106

123

142

183

299

168

114

95

79

66

55

47

194

114

49

765

236

108

96

368

_

-

Month

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

lorember. .................................

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

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

toy.......................................

MLy.. ....................................

 ater year 1939-4

Mar.

77

67

57

47

36

39

38

41

55

40

58

60

55

56

68

5S

53

65

83

76

63

74

58

47

41

47

120

62

67

78

841

Apr.

446

122

116

110

75

73

67

66

70

69

69

63

63

63

136

US

61

67

68

5S

4S

44

39

35

30

665

117

64

92

32

-

Seoondfoot-days

96S

989

1,433

25,324.1

7,548

8, 771

2,627

3,146

1,400

622

675

621

540

29,345

Hay

26

32

80

34

21

36

68

89

42

73

78

44

70

81

6S

17

70

90

87

66

24

15

18

19

20

81

82

23

84

24

24

Ma-Hpnnn

34

41

173

5,090

8,300

1,590

S41

665

90

25

29

27

22

2,300

June

24

83

23

23

23

23

23

23

24

24

24

25

25

24

23

22

21

20

19

19

 is

IS

17

17

17

16

16

16

16

16

July

16

16

16

17

17

17

18

18

18

19

19

20

22

23

25

86

26

29

29

28

2S

87

87

26

26

24

23

21

19

17

16

Minimum

24

20

34

0

40

47

36

30

15

16

16

14

16

14

Aug*

14

16

18

20

21

23

25

87

26

25

24

22

21

20

19

19

IS

18

IS

18

17

17

IS

IS

19

20

20

21

80

20

19

Mean

31» 2

33.0

46.4

69.4

243

3Q2

84.7

105

45 2

So!?

21*8

20.0

1S.O

80.2

Sept.

19

18

18

17

18

18

19

20

80

21

22

21

20

20

19

18

IS

17

17

17

17

17

16

16

16

16

16

16

16

17

Run-off in 

aere-feet

1,920

1,960

2,850

50,220

14,970

17,400

5,210

6,240

2« 780

1

O-TA t cOU

1,340

1 230

1)070

58,200
98 LOS ANGELES RIVER BASIN

Los Angeles River at Long Beach, Calif.

Location.- Water-stage recorder, lat. 33°47'25", long. 118 0 12'20", on State Street Bridge 

at Long Beach, Los Angeles County.

Drainage area.- About 1,060 square miles.

Records available.- December 1928 to September 1940.

Average discharge.- 11 years (1929-40), 110 second-feet.

Extremes.- Maximum discharge during year, 8,440 second-feet Feb. 2; minimum dally, 15 

second-feet Sept. 3.

1928-40: Maximum discharge, 99,000 second-feet Mar. 2, 1938; no flow at times In 

1929, 1930, 1934.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. B. Hedger, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

IS

14

15

16

17

1fl

19

80

81

28

25a*

85

86

8V

88

89

30

31

Oct.

33

30

26

ZZ

IS

18

19

19

19

20

20

21

ZZ

23

24

25

26

27

28

ZS

27

27

26

26

25

25

25

25

25

24

24

Hcv.

24

24

26

28

30

31

33

35

37

25

20

17

16

17

19

23

26

30

25

22

30

30

30

28

33

32

30

34

39

38

-

Dec.

36

36

34

34

33

34

34

36

36

36

36

39

38

38

36

38

38

39

40

39

39

39

79

132

83

66

52

44

42

42

40

Jan.

40

38

40

401

142

86

567

2,830

332

258

291

221

154

120

122

88

68

57

57

57

48

42

392

441

101

83

63

52

48

48

66

Feb.

1,780

2.470

1,590

9S4

374

222

191

154

117

114

110

114

114

244

181

110

76

66

61

63

68

142

1S6

120

930

507

167

128

477

_

-

Month

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

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

Water year 1939-4

liar.

101

SO

73

68

63

59

55

48

50

50

46

52

57

57

59

66

70

68

SO

SO

78

80

78

78

76

83

114

120

101

94

867

Apr.

803

228

167

133

104

83

7S

66

63

59

50

48

42

40

39

96

57

44

40

40

22

20

23

27

26

776

279

83

73

73

Seoondfoot-days

1,388

28, 784

3

AOO

811

600

33,247

May

55

55

63

57

40

34

4C

48

42

40

4S

42

44

50

48

42

30

48

46

36

36

26

22

23

27

26

26

34

33

33

26

**»

132

6,220

39

23

2,830

June

27

23

22

34

39

39

39

39

34

30

2S

27

26

26

26

23

21

25

23

21

23

23

22

22

23

26

25

25

25

25

July

23

23

22

26

20

25

27

27

28

28

30

27

28

27

28

2S

30

34

36

2S

28

27

27

27

25

26

26

25

25

30

32

M^p-flfltfi^m

33

3.5

Ac

gg

21

15

15

Aug.

32

2S

28

22

21

21

21

23

30

34

33

30

26

30

28

28

2S

25

25

27

33

34

34

34

32

27

26

26

25

23

26

Mean

44.8

78.9

27.0

20.0

90.8

Sept.

23

17

15

19

20

21

23

21

21

21

21

22

22

21

16

19

19

17

19

21

20

17

21

17

20

20

21

22

22

22

-

Run-off in 

acre-feet

2,750

57,080

1,610

1,190

65,930
LOS ANGELES RIVER BASIN 99

Pacoima Creek near San Fernando, Calif.

Location.- Water-stage recorder, lat. 34°20'0211 , 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.- 27.9 square miles.

Records available.- March 1916 to September 1940.

Average discharge.- 23 years (1917-40), 7.32 second-feet.

Extremes.- Maximum discharge during year, 169 second-feet Feb. 4; no flow during several 

periods. 1916-40: 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.

Discharge, In second-feet, water year October 1939 to September

Day

1

a

3

4

S

6

7

8

9

10

11

IS

IS

14

15

16

17

18

19

SO

21

22

S3

S4

25

26

27

SB

29

30

31

Oct.

2.2

2.6

1.4

1.3

1.3

2.0

2.5

2.5

2.5

2.4

2.4

2.5

2.5

2.5

2.5

2.4

2.4

2.4

2.5

2.5

2.5

2.5

2.5

2.5

2.4

2.4

2.4

2.4

2.3

2.3

2.3

HOT.

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

1.0

2.2

2.4

1.3

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

-

Dec.

1.2

1.3

.3

.6

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

.6

.6

.6

.6

.6

.6

.6

Jan.

0.6

.6

.6

.7

.6

.6

.7

.9

.8

.7

.8

.8

.7

.7

.7

.7

.7

.8

.8

.S

.8

.8

.8

.S

.S

.8

.7

.7

2.7

4.2

3.9

Feb.

3.5

2.8

2.5

119

136

31

6

5.5

5

5

5

5.5

6

5.5

5.5

5.5

5.5

5.5

4.9

4.8

4.S

4.S

4.8

4.8

4.S

4.7

4.7

4.6

4.6.

_

-

Month

Calendar year 1939 ......................

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

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

Mav. ......

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

Water year 1939- ia...... ...............

Mar.

4.5

97

122

41

7

6.5

6

6

6

6

6

2.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.3

.1

0

0

0

.1

Apr.

0.6

1.2

1.1

1.1

1.1

.1

.3

1.4

1.1

.1

0

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

Seoondfoot-days

71. S

56,9

20.4

1,545.0

31.3

412.6

317.0

10.0

300.3

76.3

74.3

96. S

132. S

1,602.5

May

0.1

.1

.1

.1

.1

1.7

5.3

3.8

2»9*.9

2.9

2.9

3.0

3.0

3.0

3.0

3.0

102

123

20

2.1

.2

.1

.1

.1

.6

2.9

2.9

2.S

2.8

2.8

Maximum

2.6

2.4

1.3

49

4.2

136

122

1.4

1S5

2.9

3.5

3.9

14

136

June

2.S

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.S

1.4

.1

.4

2.8

2.8

2.9 2.'8

2.8

2.S

July

2.1

.1

0

0

0

0

0

.6

2.7

2.8

2.S

2.8

2.7

2.8

2.8

2.7

2.7

2.7

3.1

3.5

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

Mj.ntnn 

1.3

1.0

.3

0

.6

2.5

0

0

.1

.1

0

1.9

1.9

0

Aug.

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.5

3.9

3.0

1.9

2.3

2.9

2.S

3.1

3.1

3.0

3.0

3.0

2.S

2.9

3.0

3.1

Mean

2.32

1.90

.66

4.23

1.01

14.2

10.2

.33

9*69

2.61

2.40

3. 18

4.43

4.3S

Sept.

3.1

3.1

3.1

2.8

3.0

2.9

2.8

2.8

2.6

2.5

2.5

2.5

2.5

2.6

2.7

2.5

2.5

2.4

2.5

4.9

13

14

6

l.S

1.8

1.8

4.6

13

14

6.5

Run-off in 

aore-feet

142

113

40

3,060

62

818

629

20

596

155

147

192

263

3,180
100 LOS ANGELES RIVER BASIN

Tujunga Creek near Colby ranch, Calif.

Location.- Water-stage recorder, lat. 34°18'10", long. 118°09'35", 25 feet upstream from 

crossing of Edison Road, 300 feet downstream from Lucas Creek, 3$ miles west of Colby 

ranch, and 4 miles upstream from Tujunga flood-control dam 1, Los Angeles County.

Drainage area.- 66.9 square miles.

Records available.- October 1930 to September 1940.

Average discharge.- 10 years, 15.0 second-feet.

Extremes.- Maximum discharge during year, not determined; minimum dally, 0.2 second-foot

1930-40: Maximum discharge not determined, probably occurred Mar. 2, 1938; no flow 

parts of most years.

Cooperation.- Records furnished by the Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

a

9

10

11

12

13

14

IS

16

17

IS

19

80

81

82

83

84

85

86

87

28

29

80

SI

Dot.

4.6

4.6

4.3

4.0

4.0

4.6

4.9

4.3

3.7

2.9

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.4

2.4

2.7

2.9

3.2

3.2

3.2

2.9

2.7

2.7

2.7

Mov.

2.7

2.9

2.9

2.9

2.9

2.9

2.9

5

5

4.6

4.0

4.0

3.7

3.7

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.5

3.2

3.2

3.2

3.2

3.2

-

Dec.

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

4.3

4.0

3.7

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

9

7

6

4.6

4.3

4.3

4.3

4.3

4.3

Jan.

4.3

. 4.3

4.3

5.5

4.6

4.9

9

276

27

18

16

16

10

8.5

8.5

9

9

8.5

8.5

8.5

8.5

8.5

11

10

8.5

8.5

6.5

6.5

6.5

6.5

7

Feb.

60

68

125

84

62

41

24

26

27

26

25

24

24

25

24

21

14

9

10

10

10

10

12

16

38

52

36

25

31

_

-

Month

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

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

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

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

Water year 1939-4 3......................

Mar.

25

21

19

19

21

17

14

13

13

12

11

10

9.5

9.5

8.5

9

9.5

10

10

10

9

8.5

8.5

8.5

7.5

8

8

8

8

7.5

34

Apr.

25

22

18

14

13

12

11

11

10

9.5

8.5

8

8.5

9

10

10

9.5

8.5

8.5

8

8

6.5

7.5

7.5

7.5

19

14

12

9.5

8

Seoondf cot-days

99.9

101.6

123.6

2,868.9

546.4

959

366 . 5

333.5

135.9

49 8

21*3

12 7

17 '.5

2,789.7

May

7

6

6

6.5

7

6.5

6

5.5

4.9

4.9

4.6

4.3

4.0

3.7

3.5

3.5

4.3

5

5

4.0

3.5

3.5

3.2

2.9

2.7

2.7

3.2,

3.2

3.2

2.9

2.7

Mo^T^im

4.9

5

9

197

276

126

34

26

7

2.9

1.0

.6

.8

276

June

2.7

2.7

2.9

2.9

2.9

2.9

2.7

2.4

2.2

1.9

1.7

1.5

1.2

1.2

1.2

1.2

1.2

1.2

 1.2

1.2

1.2

1.2

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.0

July

1.0

.S

.7

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.6

.5

.7

.S

1.0

.9

.8

.6

.6

.7

.6

.6

.6

.8

.9

.9

.7

.6

Hln^"1""

2.4

2.7

3.2

.9

4.3

9

7.5

6.5

2.7

1.0

.5.'4g

.2

Aug.

0.6

.6

.5

.5

.5

.5

.5

.5

.4

.3

.3

.3

.3

.4

.5

.5

.5

.4

.3

.2

.2

.3

.4

.4

.4

.4

.5

.5

.4

.3

.3

Mean

3.22

3.39

3.99

7.86

17.7

33.1

12*6 11.1 4

«o oo 

1.66

 ow AO

.41

.58

7.62

Sept.

0.4

.5

.6

.7

.6

.6

.5

.4

.5

.5

.5

.5

.6

.6

.6

.7

.6

.8

.8

.8

.7

.6

.6

.6

.5

.5

.S

.5

.6

.6

Run-off In 

acre-feet

198

202

245

5,690

1,090

1 900

767

661

270

99

42

25

35

5,530
LOS ANGELES RIVER BASIN 101

Tujunga Creek near Sunland, Calif.

Location.- Water-stage recorder, lat. 34°17'55", long. 118°16'10", near center of sec.

 32, T. 3 N., R. 13 W. (unsurveyed), a quarter of a mile downstream from a partly constructed and abandoned dam, 2 miles upstream from mouth of canyon, and 4 miles northeast of Sunland.

Drainage area.- 106 square miles.

Records available.- October 1916 to September 1940.

Average discharge.- 23 years (1917-40), 26.3 second-feet.

Extremes.- Maximum discharge during year, not determined; minimum, 1.4 second-feet Oct.

1916-40: Maximum discharge, 50,000 second-feet Mar. 2, 1938; minimum, 0.1 secondfoot at times In summers of 1919, 1924, 1928-31.

Remarks.- Flow regulated by flood-control dam 7 miles above station. Two or three small 

diversions above station for Irrigation.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. fc. Hedger, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

57

56

55

52

51

42

28

57

51

27

38

27

12

9

8

7.5

7.5

7

7

7

6.5

6.5

6.5

6.5

7

3.9

2.7

2.0

1.6

1.8

2.3

HOT.

2.3

2.3

2.3

2.3

2.3

2.5

2.9

2.9

2.9

2.3

2.3

1.9

1.9

1.3

1.9

2.3

1.9

1.9

1.9

1.9

2.0

2.0

2.0

1.9

1.3

1.8

1.9

1.9

1.9

2.0

-

Dec.

2.0

2.0

2.0

1.9

1.9

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.3

2.3

2.0

2.0

2.3

2.3

2.3

2.3

2.3

6.5

5.5

3.9

3.4

3.1

2.7

2.7

2.5

2.3

Jan.

2.3

2.3

2.3

6

4.1

3.4

9.5

320

96

50

42

39

38

34

30

26

26

22

25

18

18

17

13

14

19

18

19

19

17

12

9.5

Feb.

53

97

161

234

200

350

300

70

35

40

40

36

34

35

33

27

19

16

14

9

S.5

9

8

S

34

31

14

13

22

.

-

Month

Calendar year 1939 ......................

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

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

 ay......... ..............................

Jiily......................................

Water year 1939-4

Mar.

13

11

11

10

10

9.5

12

22

31

28

28

29

30

30

30

28

29

31

30

30

29

19

9

8

7.5

7.5

7

6.5

6.5

6.5

20

Apr.

16

11

11

9

7.5

7

7

7.5

7.5

6.5

6

6

5.5

5.5

5.5

5

4.7

4.2

4.1

4.0

3.8

4.2

4.4

4.4

4.5

20

9

9.5

8

6

-

Seoondfoot-days

653.3

63.9

78.5

4,935.1

971.4

1,955.5

579.0

214.3

93. 13

77.7

243.5

162.5

441.5

5,534.3

May

5

4.1

3.5

3.5

3.S

3.8

3.8

3.5

3.3

3.3

2.8

2.7

2.5

2.4

2.3

2.4

2.6

3.2 3.-1

2.6

3.0

2* 9 2!? 2.6

2.6

2.6

2.8

2.7

2.6

2.3

2.2

Maximum

57

2.9

6.5

64

320

350

31

20

5

3.4

9.5

5.5

20

350

June

2.2

2.1

1.9

1.9

1.8

1.8

1.8

1.8

l.S

1.7

1.6

1.7

1.6

2.4

2.5

2.8

3.0

3.2

3.3

3.4

3.4

3.4

3.4

3.3

3.3

3.3

3.3

3.3

3.3

3.3

-

July

3.2

4.9

9.5

8.5

8

S

8

8

7.5

S.5

9

8.5

9

9

9

9

9.5

9.5

9

9

9

9.5

9

9

9

9

5

4.7

4.7

5

5

Minimum

1.6

1.8

1.9

1.6

2.3

8

6.5

3.8

2* 2

lie

3*2

5

5

1.6

Aug.

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

5

Mean

21.1

2.13

2.53

13.5

31.3

67.4

18.7

7.14

3.01

2.59

V« 85

5.24

14.7

15.1

Sept.

5

5

5

5

5

5.5

11

12

12

12

15

20

20

20

19

19

19

19

19

19

18

18

18

18

18

17

17

17

17

17

-

Run-off in 

acre-feet

1,300

127

156

9,780

1,930

3» 880

1,150

425

186

154

483

322

876

10,990
102 LOS ANGELES RIVER BASIN

Little Tujunga Creek near San Fernando, Calif.

Location.- Water-stage recorder, lat. 34°16'30", long. 118°22'20", In Tujunga grant, on 

FooTHTll Boulevard Bridge, 4 miles east of San Fernando, Los Angeles County.

Drainage area.- 21.0 square miles.

Records available.- December 1928 to September 1940.

Average discharge.- 12. years, 2.28 second-feet.

Extremes.- Maximum discharge during year, 2,090 second-feet Jan. 8 (gage height, 5.90 

feetl; no flow during most of year.

1928-40:' Maximum discharge, 8,500 second-feet Mar. 2, 1938; no flow during most 

of each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Meager, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

a

9

10

u

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. HOT. Dec.

0

0

0

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

Jan.

0

0

0

13

5

.2

18

148

7.5

6

3.2

2.7

2.2

l.S

1.3

.8

.5

.2

.2

.1

.1

,1

.8

.1

0

0

0

0

0

0

0

Feb.

20

27

IS

15

12

9

6.5

1.4

.6

.2

.1

0

0

0

.1

0

0

0

0

0

0

0

0

0

17

10

2.1

3.S

10

.

-

Month

Calendar year 1939.... ..................

Jan 

Pet

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

Mav. ......................................

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

Water year 1939-40... ...... ..

Mar.

3.S

3.9

3.4

2.8

2.3

1.8

1.2

.7

.6

.5

.4

.3

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

38

Apr.

S

.4

.3

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

19

.5

0

0

0

-

Seoondfoot-days

0

0

.4

116.0

211.8 

152.8

60.0

2S.3

0

0

0

0

0

453.3

May

Mqytnmwi

0

0

.4

17

148 

27

38

19

0

0

0

0

0

148

June July

U4T.<mnm

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

Aug.

Mean

0

0

.01

.32

6.83 

5.27

1.94

.94

0

0

0

0

0

1.24

Sept.

Run-off in 

aore-feet

0

0

.8

230

420 

303

119

56

0

0

0

0

0

899
LOS ANGELES RIVER BASIN 

Halnes Creek near Tujunga, CaMf.

103

Location.- Water-stage recorder and broad-crested weir control, lat. 34°15'50lt , long. 

118"16'15", In W&NWi sec. 17, T. 2 N., R. 13 W., 800 feet upstream from mouth of 

canyon and 14 miles northeast of Tujunga. Altitude of gage, about 2,200 feet.

Drainage area.- 1.2 square miles.

Records available.- February 1917 to September 1934, October 1935 to September 1940.

Average discharge.- 22 years, 0.130 second-foot.

Extremes.- Maximum gage height during year, 4.3 feet Jan. 0 (discharge not determined); 

no flow at times In September.

1917-34, 1935-40: Maximum gage height, 11.0 feet Jan. 1, 1934 (discharge not determined); no flow for periods In nearly every year.

Remarks.- Records good except those for periods of no gage-height record or backwater, 

which are fair.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

Z

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

81

28

83

84

85

86

27

28

89

SO

31

Oct.

0.02

.02

.02

.02

.03

.02

.01

.01

.01

.01

.02

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.02

.02

.01

.01

.01

.01

.01

.01

.01

HOT.

0.01

.01

.01

.01

.02

.02

.02

0.01

0.01

c.Ol

o.Ol

e.Ol

c.Ol

o.Ol

o.Ol

e.Ol

.01

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.04

.02

.02

-

Dec.

00.02

0.02

0.02

c.02

c.02

c.02

0.02

c.02

0.02

0.02

.03

.02

0.02

.02

.02

.02

.02

.02

.03

.03

.03

.03

.09

.06

.06

.04

.04

.03

a. 03

a. 03

a. 02

Jan.

a0.02

f.02

.01

.OS

.11

.11

.50

7.5

.60

a. SO

.40

.35

.30

.25

.20

.15

.10

.09

.09

.11

.13

.13

.78

.39

.19

.15

.12

.11

.11

.10

.10

Feb.

2.1

2.4

2.3

f.78

.26

.24

.21

.24

.21

.21

.24

.21

.24

.32

.32

.32

.32

.29

.29

.29

.29

.26

.26

.24

1.4

.36

.17

.24

.78

-

-

Month

Calendar year 1939 ......................

Fell 

Mar

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

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

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

Water year 1939- ia. ....................

Mar.

0.35

.32

.29

.26

.24

.24

.24

.21

.19

.19

.19

.19

.19

.15

.15

.13

.13

.11

.09

.09

.09

.09

.11

.11

.13

.13

.13

.11

.11

.09

.60

Apr.

0.28

.19

.17

.15

.13

.13

.11

.09

.OS

.08

.06

.OS

.06

.06

.08

.08

.OS

.06

.06

.06

.06

.06

.06

.06

.06

.50

.11

.08

.06

.06

Secondfoct-days

0.41

.48

.88

23.724

13.60

15.79 

5.65

3.20

1.12

.325

.155

.062

.030

41.702

May

0.05

.05

.05

.05

.05

.05

.05

.05

.04

.03

.02

.02

.01

.01

.01

.02

.03

.04

.05

.05

.05

.04

.03

.03

.05

.04

.03

.03

.03

.03

.03

^flnflHnni

0.03

.04

.09

1.4

7.5

2.4 

.60

.50

.05

.02

_

-

7.5

June

0.02

.02

0.02

0.02

c.02

0.02

0.02

0.02

e.Ol

o.Ol

o.Ol

e.Ol

o.Ol

o.Ol

o.Ol

o.Ol

e.Ol

o.Ol

o.Ol '

, o.OOS

i

~ 

n^^imim

0.0

.0

.0

-

.0.1

.0

.0

.c

_

_

-

-

July

.CO. 005

Aug.

.CO. 002

Mean

1 0.013

1 .016

2 .028

.065

1 .439

7 .544 

9 .182

6 .107

1 .036

.011

.005

.002

.001

.114

Sept.

,00.001

Run-off in 

acre-feet

0.81

.95

1.7

46.8

27

31 

11

6.3

2.2

.64

.31

.12

.06

82

a No gage-height record; discharge computed on basis of comparative hydrographs and rainfall 

records of nearby stations.

o Backwater from moss and debris, discharge estimated Nov. S-16; Interpolated Dec. 1-10, 13; and 

computed on basis of field estimates of flow from June 3 to Sept. 30.

f Discharge computed from partly estimated gage-height record.
104 LOS ANOELES RIVER BASIN

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., li miles upstream from 

mouth of Millard Canyon and 5& miles northwest of Pasadena. Altitude of gage, about 

1,400 feet.

Drainage area.- 16.4 square miles.

Records available.- December 1910 to September 1939.

Average discharge.- 26 years (1913-15, 1916-40), 9.37 second-feet.

Extremes.- Maximum discharge during year, 452 second-feet Jan. 8 (gage height, 7.92 

reet), from rating curve extended above 100 second-feet; minimum daily, 0.3 secondfoot on several days during August and September.

1910-40: Maximum discharge, 8,620 second-feet Mar. 2, 1938, by slope-area method; 

practically no flow for several months in most years.

Remarks.- Records poor Oct. 1 to Apr. 30, fair May 1 to Sept. 30. No diversions above 

station.

Cooperation.- Results of 20 discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4 

5

6 

7 

8 

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 

7 

6 

5.5

5 

4.5 

4.0 

3.5 

3.1

3.1 

3.1 

2.S 

2.8 

2.6

2.4

2.4 

2.2 

1.6 

1.6

1.4 

1.4 

1.4 

1.6 

1.6

1.4 

1.4 

1.3 

1.3 

1.3 

1.4

HOT.

1.4 

1.6 

1.4 

1.4 

1.6

1.8 

1.6 

2.2 

2.2 

1.6

1.4 

1.4 

1.4 

1.4 

1.6

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.6 

1.6 

1.6

1.4 

1.3 

1.3 

1.3 

1.3

Dec.

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

2.2 

1.8 

1.4 

1.4 

1.4

1.3 

1.4 

1.4 

1.4 

1.4

1.4 

1.6 

4.5 

3.6 

2.6

2.6 

2.2 

2.2 

2.0 

l.S 

1.8

Jan.

l.S 

l.S 

1.8 

9 

4.2

3.1 

21 

114 

27 

24

22 

18 

13 

11 

9

8 

7 

6.5 

6.5 

6.5

6 

6 

8 

8 

7

6.5 

6.5 

6 

6 

6 

6

Feb.

55 

99 

100 

54 

32

25 

20 

18 

16 

15

14 

13 

12 

12 

11

10 

9 

8.5 

8.5 

8

8 

9

9 

8.5 

60

49 

21 

18 

26

Mouth

Out 

Ho*

Dec

C

Jan 

Pel 

Mar 

API

Jui 

Jul 

Aug 

Sej

1 ater year 1939-40......................

Mar.

18 

15 

12 

11 

10

9.5 

9 

9 

8.5 

8.5

8 

S 

8 

7.5 

7.5

7.5 

7 

7 

7 

7

6.5 

6.5 

6.5 

6 

6

6 6 

5.5 

5.5 

5.5 

30

Apr.

18 

10 

S.5 

7.5

6.5 

6.5 

6.5 

6 

5.5

5 

5 

4.8 

4.8 

5

5 

5 

4.6 

4.6 

4.6

4.4

4.6 

4.8 

5 

4.S

25 

14 

9 

6.5 

6

Seeondfoot-days

95.7 

45.2 

54.4

1,496.4

387.2 

748.5 

275.0 

214.5 

93.2 

45.7 

18.6 

13.4 

9.5

2,000.9

Hay

5 

4.6 

4.6 

4.4

4.3 

4.0 

3.8 

3.2 

3.0

2.9 

2.7 

2.6 

2.5 

2.4

2.4 

2.6 

2.9 

2.6 

2.6

2.5 

2.5 

2.5 

2.4 

2.2

2.4 

2.6 

2.5 

2.2 

2.0 

2.0

Hoy! HP .T

9 

2.2 

4.5

85

114 

100 

30 

25 

5 

2.4 

1.0 

.6 

.4

114

June

2.0 

2.0 

2.1 

2.2

2.2 

2.2 

2.1 

2.0 

2.0

1.9 

1.8 

1.7 

1.6 

1.5

1.5 

1.5 

1.3 

1.2 

1.1

1.1 

1.0 

1.0 

1.0 

1.0

1.0 

.9 

.8 

.8 

.8

July

0.9 

1.0 

.9 

.8

.6 

.6 

.6 

.4 

.4

.5 

.4 

.4 

.5 

.5

.5 

.6 

.8 

.7 

.7

.7 

.6 

.6 

.5 

.5

.5 

.6 

.6 

.6 

.6 

.6

H^nlimnq

1.3 

1.3 

1.3

.4

1.8 

8 

5.5 

4.4 

2.0 

.8 

.4 

.3 

.3

.3

Aug.

0.6 

.6 

.6 

.4

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3 

.3

Mean

3.09 

1.51 

1.75

4.10

12.5 

25.8 

8.87 

7.15 

3.01 

1.52 

.60 

.43 

.32

5.47

Sept.

0.3 

.3 

.4 

.4

.3 

- .3 

.3 

.3 

.3

.4 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.4

Run-off In 

aore-feet

190 

90 

108

2,970

768 

1,480 

545 

425 

185 

91 

37 

27 

19

3,960

Peak discharge.- Jan. 8 (2 a.m.) 452 sec.-ft.; Feb. 3 (4 p.m.) 155 aee.-ft.j Feb. 25 (10 p.m.) 

191 aee.-ft.

Note.- Discharge for period cf no gage-height record Oct. 1-9, and for periods of extremely unstable rating, Jan. 9-31, Feb. 6-21. 24. Feb. 2S to Mar. 30, computed on basia of discharge measurements, Mount Wilson rainfall record, and records for nearby stations.
LOS ANGELES RIVER BASIN 105 

Santa Anita Creek near Sierra Madre, Calif.

Location.- Water-stage recorder, lat. 34°11.'30", long. 118°01'00", in SWtNEt sec. 10, 

TT~ni., R. 11 W., at head of Hermits Falls, 4 miles northeast of Sierra Madre. 

Altitude of gage, about 1,400 feet.

Drainage area.- 10.5 square miles.

Records available.- July 1916 to September 1940.

Average discharge.- 24 years, 5.43 second-feet.

Extremes.- Maximum discharge during year, 349 second-feet Jan. 8 (gage height, 4.10 

reet;; minimum, 0.3 second-foot at times in August and September.

1916-40: 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 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

30

31

Oct.

3.6

3.5

3.4

3.0

2.9

3.S

4.1

3.1

2.9

2.6

2.5

2.2

2.1

2.0

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

2.0

2.1

2.1

2.1

2.1

2.0

2.0

2.1

HOT.

2.2

2.2

2.2

2.4

2.5

2.5

2.4

2.9

3.0

2.6

2.5

2.5

2.5

2.5

2.5

2.4

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.4

2.4

2.4

2.4

2.4

2.4

2.4

-

Dec.

2.4

2.2

2.2

2.2

2.2

2.2

2.4

2.4

2.4

2.4

2.7

2.5

2.5

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.2

2.2

3.2

3.2

2.7

2.6

2.6

2.6

2.5

2.5

2.5

Jan.

2.5

2.5

2.5

4.5

3.6

3.4

11

55

14

11

10

9.5

7.5

6.5

5.5

4.8

4.6

4.2

3.9

3.9

3.6

3.5

4.1

4.1

3.8

3.6

3.6

3.5

3.4

3.4

3.5

Feb.

18

35

44

30

18

12

10

8.5

7.5

6.5

6.5

6

6

7

6

6

5.5

5.5

4.9

4.S

4.6

4.8

4.6

4.4

32

29

14

12

19

-

-

Month

January. .« ».«.« *

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

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

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

 T-".... ...............................

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

Water year 1939-40. .......... ...........

Mar.

12

11

10

9

8.5

S

7.5

7

7

6.5

6

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5

5

4.9

4.9

5

4.9

4.9

4.8

4.8

12

Apr.

9.5

6.5

6

6

5.5

5

5

4.8

4.6

4.2

4.2

4.1

3.9

3.9

4.2

4.2

4.1

3.9

3.8

3.8

3.8

3.9

3.9

3.9

3.9

9

5.5

4.8

4.2

4.1

-

Seoondfoot-days

75.3

72.2

75.7

1.1S7.0

210.5

372.1

204.7

144.2

99.8

53.0

23.3

12.7

12.6

1,356.1

May

3.9

3.8

3.S

3.6

3.6

3.6

3.5

3.5

3.2

3.2

3.2

3.2

3.2

3.1

3.1

3.1

3.2

3.2

3.2

3.2

3.2

3.2

3.1

2.9

2.9

3.0

3.0

2.9

2.9

2.7

2.6

Ma-8-lifm^

4.1

3.0

3.2

74

55

44

12

9.5

3.9

2»6

1.3

.5

.5

55

June

2.6

2.6

2.5

2.5

2.5

2.4

2.4

2.2

2.1

1.9

1.9

1.8

1.7

1.7

1.7

1.7

1.6

1.6

1.4

1.4

1.3

1.3

1.2

1.2

1.3

1.3

1.3

1.3

1.3

1.3

-

July

1.3

1.3

1.3

1.1

1.1

1.0

1.0

.9

.9

.8

.8

.7

.6

.6

.7

.6

.7

.8

.7

.6

.6

.5

.5

.5

.5

.5

.6

.6

.6

.5

.4

IMn^imim

1.9

2.2

2.2

.4

2.5

4.4

4.8

3.8

2.6

1.2

.4

.4

.4

.4

Aug.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.4

.4

.4

.4

Mean

2.43

2.41

2.44

3.25

6.79

12.8

6.60

4. SI

3.22

1.77

.75

.41

.42

3.71

Sept.

0.4

.4

.4

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.4

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

-

Run-off in 

aore-feet

149

143

150

2,350

418

Y38

406

286

198

105

46

25

25

2,690

Peak dIscharge.- Jan. 8 (3 a.m.) 349 sec. 

sec. -ft".

-ft.; Feb. 1 (11 a.m.) 78 sec.-ft.; Feb. 25 (9 p.m.) 135
106 LOS ANGELES RIVER BASIN

Little Santa Anita Creek near Sierra Madre, Calif.

Location.- Water-stage recorder and control, lat. 340 11'15", long. 118°02'35", near

center of MWi sec. 9, T. IN., R. 11 W., 2 miles northeast of Sierra Madre. Altitude 

of gage, about 2,200 feet.

Drainage area.- 1.9 square miles.

Records available.- April 1916 to September 1940.

Average discharge.- 23 years (1916-25, 192G-40), 0.94 second-foot.

Extremes.- Maximum discharge during year, 35 second-feet Jan. S (gage height, 1.85 feet); 

minimum dally, 0.1 second-foot July 13 to Sept. 30.

1916-40: 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 except those for period of no gage heights, which are fair. No 

diversions above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

1 

8 

9

10

11 

12 

15 

14 

15

16 

IV 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

SB 

29 

SO 

31

Oct.

0.4 

.4 

.4 

.4 

.4

.5 

.5 

.4 

.4 

.4

.4

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

HOT.

0.3 

.3 

.3 

.3 

.3

.3

!s

.3 

.3

.3

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.3

.3 

.3 

.3 

.3 

.3

Dec.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.4 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Jan.

0.3 

.3 

.3 

.7 

.4

.4 

1.2 

5 

2.3 

1.8

2.0

1.6 

1.2

.9 

.8 

.S 

.7 

.7

.6 

.6 

.7 

.6 

.6

.5 

.5 

.5 

.5 

.5 

.5

Feb.

2.0 

4.3 

4.3 

3.2 

2.4

2.0 

1.6 

1.5 

1.2 

1.1

1.1

Q

.9 

.9

.S 

.7 

.7 

.6 

.6

.6 

.6 

.6 

.6 

2.6

2.5 

1.5 

1.4 

2.2

Month

Got 

Hoi 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

«

uary

atar year 1939-4

Mar.

1.5 

1.4 

1.3 

1.2 

1.2

1.1 

1.1 

1.0

1.0 

.9

.9

.8 

.7

.7 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6 

1.5

Apr.

1.4 

1.1 

.9 

.8 

.8

.7 

.6 

.6 

.6 

.6

.5

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

1.3 

.8 

.7 

.6 

.5

Seoondfoot-days

10.6 

8.8 

S.8

125.8

30.6 

44.2 

26.2 

18.1 

13.4 

8.3 

4.3 

3.1 

3.0

179.4

Hay

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.4

'.4

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Maximum

0.5 

.3 

.4

1.5

5 

4.3 

1.5 

1.4 

.5 

.4 

.2 

.1 

.1

5

June

0.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3

.3

.2 

.2

.3

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

July

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

g

.1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Minimum

0.3 

.2 

.2

.1

.3 

.6 

.6 

.4 

.4 

.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 

.1

.1 

.1 

.1 

.1 

.1 

.1

Mean

0.34 

.29 

.28

.34

.99

1.52 

.85 

.60 

.43 

.28 

.14 

.10 

.10

.49

Sept.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

Run-off in 

acre-feet

21 

17 

17

248

61 

88 

52 

36 

27 

16 

8.5 

6.1 

6.0

356

Peak discharge.- Jan. 6 (2:15 a.m.) 35 sec.-ft.; Feb. 2 (8 p.m.) 8 sec.-ft.; Feb. 25 (8 p.m.). 11 

sec.-ft.

Note.- No gage-height record June 18 to July 17; discharge Interpolated.

9-2S2 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
LOS ANGELES RIVER BASIN 107

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. IN., R. 12 W., at mouth of canyon, Just upstream from 

site of former Mount Wilson toll bridge, and 4 miles northeast of Pasadena. Altitude 

of gage, 1,230 feet.

Drainage area.- 6.5 square miles.

Records available.- March 1918 to September 1940.

Average discharge.- 22 years, 2.31 second-feet. Average combined discharge of creek and 

diversion, '&. years, 3.33 second-feet.

Extremes.- Maximum discharge during year, 220 second-feet Jan. 8 (gage height, 2.40

reetj, from rating curve extended above 40 second-feet on basis of computed rating for 

broad-crested control; no flow for several months.

1918-40: Maximum discharge, 2,400 second-feet Mar. 2, 1938, from record of inflow 

to Eaton flood-control reservoir; no flow for some periods in each year.

Remarks.- Records good. Records do not include water diverted above station by city of

Cooperation.- Results of three discharge measurements furnished by Los Angeles County 

Flood Control District, through H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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

.1 

.1

.2.1

0 

0

Jan.

0

.1 .1 .1 .1

.1

6.5 

36 

12 

6

5.5 

6 

4.3 

3.1 

1.6

.8 

0 

0 

0 

0

0 

0 

.7 

.3 

0

0 

0 

0 

0 

0 

0

Month

Oct 

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year 19!

ater year 1939-4

Feb.

15 

25 

26 

22 

12

6 

5 

5 

1.5 

.5

.5 

0 

0 

.1 

.2

0 

0 

0 

0 

0

0 

.1 

0 

0 

15

16 

5.5 

4.2 

14

Mar.

4.6 

2.4 

2.7 

2.8 

1.6

.8 

.5 

.2 

.4 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

11

Secondfoot-days

0 

0 

.5

165.5

83.3 

175.6 

27.1 

1S.1 

0 

0 

0 

0 

0

304.6

Apr.

6 

.2 

.1 

- .4 

.4

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

9 

2.0 

0 

0 

0

Maximum

0 

0 

.2

64

36 

28 

11 

9 

0 

0 

0 

0 

0

36

May

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

June July

Mean

0 

0 

.02

.45

2.69 

6.06 

.37 

.60 

0 

0 

0 

0 

0

.83

Aug.

Run-off in 

acre-feet

0 

0

1

328

165 

348 

54 

36 

0 

0 

0 

0 

0

604

Sept.

Dlversloi In

99 

54 

53

1,195

144 

174 

228 

ISO 

126 

74 

45 

32 

27

1,240

Peak discharge.- Jan. S (2:45 a.m.) 220 sec.-ft.; Feb. 1 (10 a.m.) 50 sec.-ft.; Feb. 25 (S:30 

p.m.) 59 sec.-ft.

^Diversion by city of Pasadena. Records furnished by that city.
108 LOS ANGELES RIVgR BASIN

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 fron Mission Bridge, and 2 

miles northeast of Montebello, Los Angeles County. Altitude of gage, about 200 feet.

Records available.- October 1928 to September 1940. 

Average discharge.- 12 years, 59.0 second-feet.

Extremes.- Maximum discharge during year, 2,380 second-feet Jan. 7 (gage height, 7.45 

feet); minimum, 5 second-feet Sept. 4.

1928-40: Maximum discharge, 28,000 second-feet Mar. 2, 1938; minimum, 0.3 secondfoot Dec. 1, 1933.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

8

3

4

5

6

7

a

9

10

11

12

13

14

IS

16

17

18

19

20

81

28

23

24

25

26

27

28

89

30

31

oot.

31

36

31

33

28

30

60

26

31

27

26

23

20

24

21

23

27

27

30

28

28

31

27

33

33

30

33

30

27

2S

24

Hov.

24

£4

23

26

23

24

28

37

2S

28

31

28

27

27

28

28

2S

26

27

24

21

24

23

22

23

21

23

22

IS

23

-

Dec.

21

22

22

22

23

26

27

22

24

23

34

27

26

26

27

27

22

27

28

27

27

22

66

31

26

28

30

31

33

36

33

Jan.

31

27

31

103

27

40

410

372

64

S6

S3

56

45

31

33

34

31

2S

28

2S

26

28

92

35

31

33

31

26

2S

27

44

Feb.

505

444

300

77

63

47

37

30

23

24

21

23

23

56

37

37

33

27

30

28

27

24

24

22

335

51

33

32

106

_

-

Month

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

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

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

Mav. .. .......

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

Water year 1939-40......................

Mar.

34

27

26

30

30

31

31

33

31

28

30

30

30

30

24

28

26

26

23

22

26

23

26

24

2S

31

37

28

2S

2S

222

Apr.

100

33

33

30

30

31

27

27

27

27

26

23

26

21

26

27

24

26

24

22

22

23

26

23

24

252

34

22

27

26

-

Secondfoot-days

906

759

866

13,113

1,989

2,519

1,071

1,089

775

1.708

1,075

565

61S

13,940

May

28

2S

27

24

23

27

26

26

24

26

26

26

24

26

26

27

27

26

23

27

24

22

22

24

27

26

26

23

22

22

20

MqX^T"11 "!!

60

37

66

1,060

410

505

222

252

28

220

190

21

26

505

June

22

21

IS

23

23

21

23

26

22

20

IS

17

21

22

23

23

IS

20

34

116

132

135

171

217

220

104

20

IS

17

143

-

July

172

190

166

29

16

IS

18

17

17

18

21

le

20

IS

18

17

17

17

16

IS

18

17

18

IS

IS

20

20

21

22

21

21

Minimum

20

IS

21

14

26

21

22

21

20

17

16

13

13

13

Aug.

18

16

20

IS

20

20

IS

17

16

21

18

16

17

14

13

17

IS

18

16

15

18

20

18

21

21

20

IS

20

21

21

21

Mean

29.2

25.3

27.9

35.9

64.2

86.9

34.5

36.3

25.0

56.9

34.7

18.2

20.6

3S.1

Sept.

15

14

17

13

20

20

22

21

21

20

IS

IS

21

23

21

22

21

22

20

22

26

22

23

21

20

21

20

26

24

24

-

Run-off in 

acre-feet

1,800

1,500

1,720

26,010

3,950

5,000

2,120

2,160

1,540

3,390

2,130

1,120

1,230

27,660
LOS ANGELES RIVER BASIN 109

Rio Hondo near Downey, Calif.

Location.- Water-stage recorder, lat. 33°56'40", long. 11SC09'50", In San Antonio grant, 

on Stewart and Gray Road Bridge, half a mile upstream from mouth and It miles west 

of Downey, Los Angeles County. Altitude of gage, about 95 feet.

Drainage area.- 374 square miles.

Records available.- March 1928 to September 1940.

Average discharge.- 12 years, 31.3 second-feet.

Extremes.- Maximum discharge during year, 1,930 second-feet Jan. 8 (gage height, 7.75 

reetj; no flow during several periods.

1928-40: Maximum discharge, 24,400 second-feet Mar. 3, 1938 (gage height, 13.5 

feet); no flow during part of each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

80

31

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

.4

1.6

0

0

1.0

0

0

0

0

.6

2.S

.2

.7

.1

1.6

1.4

.4

.S

 OT.

2.1

1.6

2.3

1.5

.2

.4

1.6

.7

0

0

X.S

3.0

2.X

2.5

3.0

2.S

3.8

2.5

2.1

1.1

2.1

3.0

2.8

2.5

2.5

5

6

8

7.5

6

~

Dec.

4.7

3.4

6

5.5

6

5

6

5

6.5

6.5

5.5

3.7

5.5

5

6

6.5

6

6

6

6

6.5

7

6.5

0

0

.6

4.7

4.7

3.9

3.9

3.7

Jan.

2.5

0

0

.6

0

0

107

442

6.5

3.7

14 

3.5

0

0

0

0

0

0

0

0

0

0

.4

3.3

0

0

0

0

0

0

.1

Feb.

238

329

256

38

2.8

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

104

25

0

0

5.5

.

-

Month

Calendar year 1939 ......................

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

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

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

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

Water year 1939-40. ............... . ...

Mar.

0.1

0

0

.1

0

0

0

1.5

.3

0

0

1.2

0

0

0

1.4

.1

1.3

.2

0

.6

.7

.5

0

0

.9

3.0

2.0

.7

.5

15

Apr.

35

.2

.9

l.S

.2

.3

1.2

1.2

.3

1.6

1.8

1.2

.1

1.6

2.S

1.8

2.1

.3

1.6

.8

.8

1.1

3.9

4.7

4.3

SO

12

.1

0

.6_

Seoondfoot-days

11.6

79.5

152.3

2,342.4

5S3.6

99S.3

30.1

164.3

86.1

74.7

106.6

73.1

S2.9

2,443.3

May

3.9

2.4

2.1

2.1

3.2

3.4

1.8

2.8

3.0

2.3

1.3

2.8

2.3

1.7

1.1

1.6

2.5

2.8

3.1

2.9

3.7

3.8

4.3

3.7

3.6

3.3

3.2

3.0

2.7

3.2

2.5

Maximum

2.8

S

7

879

442

329

15

80

4.3

4.3

7

5.5

S

442

June

1.7

.7

1.9

2.2

2.5

2.S

3.1

3.3

4.3

2.8

3.1

1.8

4.2

2.3

2.5

1.7

1.6

2.5

.6

3.0

3.1

2.6

3.7

2.5

1.4

2.1

1.5

2.S

2.1

4.3

July

6

.7

6

5.5

4.9

7

7

3.4

3.6

7

3.5

1.6

1.6

3.9

3.7

2.6

1.2

2.2

2.2

1.2

5

4.3

3.3

2.S

2.6

2.0

2.0

1.0

3.2

2.7

3.1

H»in4Tinim

0

0

0

0

0

0

0

0

1.1

.6

.7

.6

1.4

0

Aug.

2.3

2.5

2.1

3.2

2.3

2.1

2.2

2.0

1.4

.6

1.8

.6

.8

1.5

1.2

1.6

1.6

.6

2.1

.6

1.2

1.5

1.2

3.6

5.5

4.1

3.4

3.7

7

4.7

3.9

Mean

0.37

2.65

4.91

6.42

18.8

34.4

.97

5.46

2.78

2.49

3.45

2.36

2.76

6.68

Sept.

2.8

2.3

3.2

2.5

1.5

3.2

3.9

8

5

2.3

2.1

2.3

1.6

1.4

2.8

3.4

1.6

2.8

4.3

1.6

2.1

2.5

1.4

1.6

1.5

2.1

2.5

2.5

3.4

4.7

Run-off in 

acre-feet

23

158

302

4,640

1,160

1,960

60

326

171

14S

212

145

164

4,850
110 LOS ANGELES RIVER BASIN

Rio Hondo Slough near Montebello, Calif.

Location.- Water-stage recorder, lat. 34°01'45", long. 118°04'0711 , In Paso de Bartolo 

grant, at San Gabriel Boulevard Bridge, 2 miles northeast of Montebello, Los Angeles 

County.

Records available.- October 1932 to September 1940.

Extremes.- Maximum discharge during year, 74 second-feet Jan. 8; minimum dally, 15 

second-feet Aug. 19.

1932-40: Maximum discharge not determined, occurred on Mar. 2, 1938; minimum, 4.S 

second-feet Oct. 4, 1935.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

25

25

24

24

23

24

24

24

23

23

22

22

22

22

23

23

22

23

22

21

21

22

22

22

22

20

20

20

21

21

20

HOT.

22

21

22

22

22

22

22

23

22

20

22

22

23

22

23

23

22

23

22

22

22

22

22

22

23

24

24

24

24

24

-

Dec.

22

23

23

23

23

23

22

22

22

22

23

24

24

24

25

25

25

25

25

24

24

24

26

27

27

24

25

24

24

25

25

Jan.

25

25

26

28

28

27

33

52

33

32

32

29

27

27

26

26

26

26

26

26

27

26

28

29

28

27

27

27

27

27

28

Feb.

41

43

44

35

30

29

28

27

26

26

27

27

26

27

27

27

26

26

26

25

24

25

25

25

30

28

27

26

27

.

-

Month

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

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

Calendar year 1939 ......................

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

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

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

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

Water year 1939-4

Mar.

25

25

25

24

24

24

24

24

24

24

23

24

23

23

23

23

24

23

23

23

23

23

23

23

23

23

24

23

22

22

27

Apr.

2S

24

22

22

22

22

24

24

23

23

22

22

22

22

22

22

22

22

22

22

23

23

23

23

24

26

25

23

22

22

-

Secondfoot-days

692

673

744

8,197

881

830

731

688

676

576

582

558

546

8,177

May

22

22

22

22

22

22

22

22

22

21

21

22

22

22

22

22

21

22

22

22

22

22

22

22

22

22

22

22

21

21

21

Maximum

25

24

27

77

52

44

27

28

22

21

20

20

20

52

June

21

21

21

21

21

21

21

21

21

21

20

20

20

20

20

20

20

20

17

18

16

16

16

18

18

17

18

18

17

17

-

July

18

18

18

19

19

19

20

20

18

18

20

19

18

20

20

20

19

19

17

17

18

18

18

19

19

19

19

20

19

19

18

Minimum

20

20

22

19

25

24

22

22

21

16

17

15

17

15

Aug.

IS

19

20

19

18

19

18

17

16

17

17

17

18

16

17

20

20

18

15

18

20

18

18

1C

18

19

19

18

18

17

18

Mean

22.3

22.4

24.0

22.5

28. 4

28.6

23. 6

22.9

21 . 8

19 2

18.8

18.0

18.2

22.3

Sept.

18

20

19

18

18

18

17

18

18

17

17

17

18

17

17

17

17

18

18

19

19

20

19

19

19

18

19

19

19

19

-

Run-off in 

acre-feet

1,370

1,330

1,480

16,250

1,750

1,650

1,450

1,360

1,340

1,140

1,150

1,110

1,080

16,210
BALLONA CREEK BASIN 

Ballona Creek near Culver City, Calif.

Ill

Location.- Water-stage recorder, lat. 33°59'50", long. 118°24'10", In La Ballona grant, 

on Sawtelle Boulevard Bridge, about li miles south of Culver City, Los Angeles County. 

Altitude of gage, about 40 feet.

Drainage area.- 112 square miles.

Records available.- February 1928 to September 1940.

Average discharge.- 12 years, 33.0 second-feet.

Extrenes.- Maximum discharge during year, 9,730 second-feet Feb. 3 (gage height, 12.05 

feet); no flow May 2.

1928-40: 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. t;. Hedger, chief engineer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Oct.

10

s

10

6.5

8.5

20

16

8

9.5

9.5

7

9.5

7

6

3.9

8

9.5

7

7.5

9.5

8.5

6.5

8.5

8

9

8

6.5

8

8

7.5

8

HOT.

7

7.5

10

10

7.5

8.5

10

26

11

6.5

5

2.8

6.5

8

8

9.5

8.5

11

3.9

5.5

9

7.5

6.5

7

7.5

4.5

6

6

8

5

-

Dec.

7.5

7.5

4.2

5.5

12

11

7.5

7

9

4.8

47

7.5

4.5

5

3.1

3.5

2.8

3.3

9

5.5

3.3

3.9

157

6.5

4.8

4.5

6.5

4.2

3.7

3.9

3.5

Jan.

4.2

10

8

296

4.8

56

1,160

254

70

248

58

8

7

6.5

6

8.5

9.5

6

6

4.2

3.3

3.9

681

11

6.5

7

5.5

5

5

5

69

Feb.

1,270

883

S72

22

14

10

7.5

6.5

6.5

6

5

6

7

183

8.5

6.5

7

6

7

7.5

6.5

39

8

6

615

19

11

44

140

-

-

Month

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

Calendar year 1939 ......................

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

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

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

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

Mav. ...

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

Water year 1939-4 D...... ................

Mar.

13

9

6.5

10

8

6.5

5.5

6

4.2

3.5

3.7

3.9

3.3

2.8

3.1

3.1

2.8

3.3

3.9

4.2

4.5

3.5

3.5

3.3

3.9

3.5

15

5.5

4.2

4.8

773

Apr.

113

9.5

6.5

5.5

6

6

5

5.5

4.8

3.9

4.8

5

4.5

3.7

43

7.5

7

5

3.3

3.7

1.7

3.7

4.8

6

12

404

8

5.5

4.8

3.5

-

Secondfoot-days

267.4

239.7

369.0

10,103.1

3,032.9

4,229.5

931.0

707.2

168.3

164.9

191. 3

173.2

165.8

10,640.2

May

2.0

1.3

2.0

2.6

2.2

4.2

3.9

5

6

6

6.5

3.7

3.9

6.5

7

6

7.5

8.5

5.5

6.5

6.5

7

9

6.5

6.5

5

6

7.5

6.5

5

6

Max* 

20

26

157

3,080

1,160

1,270

773

404

9

9.5

10

9.5

9.5

1,270

June

6

3.3

4.2

4.2

3.7

4.8

3.5

6

3.3

6

5.5

6

6

6

5

3.9

5

4.5

5

4.2

6.5

6

4.8

7

8.5

7

6.5

9.5

7

6

-

July

10

9.5

8

6

S

4.8

4.8

8

5

4.8

5.5

5

5

4.2

6.5

5.5

4.5

3.9

5

4.2

6.5

4.8

5.5

7

4.8

6

7.5

7

8

8

8

Minimum

3.9

2.8

2.8

1.8

3.3

5

2.8

1.7

1.3

3.3

3.9

3.3

2.6

1.3

Aug.

7

9.5

7

5

6.5

7

7

7

6.5

6

3.9

5.5

5.5

3.9

5.5

7

4.2

3.3

4.5

4.8

6

6

7

6

3.3

6

4.2

4.2

3.9

5

5

Mean

8.63

7.99

11.9

27.7

97.8

146

30.0

23.6

5.43

5.50

6.17

5» 59 5)53

29.1

Sept.

8

4.S

6.5

5

6

5

6.5

6.5

6

4.5

3.3

3.7

5.5

5

3.9

7

5

6.5

6.5

6.5

6

6

9.5

8

6

4.5

3.9

2.6

3.1

4.5

-

Run-off in 

acre-feet

530

475

732

20,030

6,020

8,390

1,850

1,400

334

327

344

329

21,110

9-232 February 1936

UNITKD STATKS DEPARTMENT OF THE INTERIOR 

Geological Survey
112 TOPANGA CREEK BASIN

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 September 1938, October 1939 to September 1940.

Extremes.- Maximum discharge during year, 1,280 second-feet Feb. 1 (gage height, 9.65 

feet); no flow July 5 to Aug. 10, Sept. 18-30.

1930-38, 1939-40: 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.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

e 

s

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

80

81 

88 

83 

84 

85

86 

27 

88 

89 

30 

31

Oct.

0.1.1 .1 .1 .1

.1 .1 

.1 .1 .1

.1 .1 .1 .1

.1 .1 .1

.1 .1 .1 .1 .1

.1.1 .1 .1 .1 .1

HOT.

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

Dec.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1 

.5 

.2 

.1

.1 

.1 

.1 

.1 

.1 

.1

Jan.

0.1 

.1 

.1 

.5 

.2

.2 

3.0 

54 

12 

13

'4.9 

3.8 

2.9 

2.2

1.3 

1.0 

1.0

1.0 

1.2 

15

10 

3.2

2.9 

2.5

2.3 

2.0 

1.8 

1.8

Feb.

172 

183 

116 

30 

21

15 

10

e

6 

5.5

3.9 

3.7 

4.6 

3.1

2.1 

1.9 

1.9

1.7

3.0 

2.6 

2.1 

72

26 

15 

10 

12

Month

Got 

Xoi 

Dec

C

Jan 

Pet 

Max 

Apz

Jui 

Jul 

Au« 

Sei

«

alendar year

ater year 1939-40 ......................

Mar.

8 

6.5 

5.5 

4.4 

3.9

3.4

3.2 

2.9

2.7 

2.4

2.0 

1.8 

1.6 

1.4

1.4

1.4 

1.4 

1.4

1.6 

1.4 

1,3

1.2 

1.1

1.1 

1.0 

1.0 

1.0 

1.5 

13

Apr.

7.5 

3.1 

2.6 

2.1 

2.0

1.9 

1.7 

1.6 

1.3 

1.2

1.0 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9

.8 

.8 

.9

2.8 

.8 

.7 

.6 

.6

Seoondfoot-days

3.1 

3.0 

3.6

-

153.2 

740.6 

84.4 

44.1 

9.0 

4.5 

.4 

2.1 

1.7

1,049.7

May

0.5

.5

*4 

.4

.3 

.3

.3

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.2

.2

.2 

.2 

.2 

.2 

.2

Kajdanm

0.1.1

.5

.

54 

183 

13 

7.5 

.5 

.2 

.1 

.1 

.1

183

June

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

July

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

0.1 

.1 

.1

.

.1 

1.7 

1.0 

.6 

.2 

.1 

0 

0 

0

0

Aug.

0 

0 

O 

0 

0

0 

0 

0 

0 

0

.1 .1 .1 .1 .1

.1 .1 .1 .1 .1

.1 .1 .1 .1.1

.1 .1 .1 .1.1 .1

Mean

0.10 

.10 

.IS

.

4.94 

25.5 

2.72 

1.47 

.89 

.15 

.01 

.07 

.06

2. 87

Sept.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Run-off in 

acre-feet

6.1 

6.0 

7.1

.

304 

1,470 

167 

87 

18 

8.9 

.8 

4.2 

3.4

2,080

9-238 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
MALIBU CREEK BASIN 113

Mallbu 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 1940.

Extremes.- Maximum discharge during year, 690 second-feet Feb. 2 (gage height, 7.15 

reet); no flow July 30 to Aug. 2, Aug. 26, 27.

1931-40: Maximum discharge, 10,000 second-feet Mar. 2, 1938 (gage height, 15.90 

feet); no flow during periods In some years.

Coo Deration.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

Bay

1

8

3

4

5

6

7

8

9

10

11

18

IS

14

15

16

17

18

19

80

81

88

83

84

85

86

87

88

89

30

31

Oct.

1.1

.3

.1

.4

.4

.4

.3

.6

.4

.2

.4

.4

.4

.4

.4

.4

.2

.4

.6

.6

.4

.4

.4

.4

.4

.4

.2

.1

.1

.1

.1

HOT.

0.2

.6

1.1

1.1

1.4

1.4

1.4

2.1

2.9

1.7

1.4

1.4

1.4

1.1

1.1

1.1

1.1

.8

.3

.6

.6

.6

.4 -.2

.2

.4

.6

.6

.6

.3

-

Dec.

10

2.9

.3

.6

.6

.6

.3

1.1

1.1

1.1

1.7

1.4

1.4

1.4

1.1

1.4

1.4

1.4

1.4

1.4

1.4

1.7

4.0

1.7

1.4

1.1

1.4

1.4

1.1

.8

.8

Jan.

0.6

.4

.6

2.1

1.7

1.4

6

64

51

23

41

17

12

9

6.5

4.9

4.1

2.9

2.9

2.9

2.9

3.3

IS

25

7

5.5

4.5

4.1

3.7

3.3

3.3

Feb.

246

335

294

188

86

56

42

34

27

25

23

20

19

30

16

10

13

13

13

12

12

25

38

9.5

56

32

50

45

45

_

-

Month

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

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

fcj.............. .........................

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

Water year 1939-40..... .................

Mar.

31

32

30

24

23

21

20

18

17

15

15

14

13

12

12

11

11

10

10

10

9

3

S.5

S

7.5

8

3.5

7.5

7.5

S

16

Apr.

15

10

9

9

S.5

S.5

6.5

6

6

6

5.5

4.9

4.9

4.1

4.9

4.9

4.9

5.5

5.5

4.9

4.9

4.9

4.9

4.9

6

10

9

7

6

5.5

-

Seoondfoot-days

12.4

29.7

50.4

1,756.9

334* 6

1,844.5

445.5

197.6

37.7

47.7

8.4

4.7

11.8

3,075.4

Hay

5.5

4.9

4.1

4.1

3.7

3.3

3.3

2.9

3.3

3.7

3.3

3.3

3.3

3.3

3.3

3.3

2.9

2.5

1.7

1.7

1.7

1.7

2.1

2.1

1.7

1.7

1.7

1.7

1.7

1.7

2.5

Maximum

1.1

2.9

10

139

64

335

32

15

5.5

2.9

.6

.4

.6

335

June

2.5

2.5

2.1

2.5

2.9

2.1

2.1

2.1

2.0

1.4

1.4

1.4

1.4

1.4

1.4

1.7

1.4

1.4

1.9

1.4

1.1

1.1

1.1

1.4

1.4

1.1

1.1

.8

.S

.S

-

July

0 6

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.2

.2

.2

.1

.1

.1

.1

.1

.1

0

0

Minimum

0.1

.2

.6

0

.4

9*5

7.5

4.1

1.7

.8

0

0

.1

0

Aug.

0

0

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.2

.2

.2

.1

.1

0

0

.1

.2

.4

.4

Mean

0.40

.99

1.63

4. SI

10.8

63* 6

14.4

6. 59

2. 83

1. 59

.30

.15

.37

3.40

Sept.

0.4

.4

.4

.4

.4

.4

.6

.6

.4

.4

.6

.6

.6

.6

.6

.6

.6

.6

.4

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

-

Run-off in 

acre-feet

25

59

100

3,430

664

3,660

884

392

174

95

1Q itf

9*3

22

6,100
114 SANTA CLARA RIVER BASIN

Santa Clara River near Saugus, Calif.

Location.- Water-stage recorder, lat. 34°25'42", long. 118°35'23", in San Francisco 

grant, on pier of old highway bridge, 3 miles west of Saugus, Los Angeles County.

Drainage area.- 355 square miles.

Re cords ava ilable.- October 1929 to September 1940.

Average discharge.- 11 years, 6.93 second-feet.

Extremes.- Maximum discharge during year, 676 second-feet Feb. 1 (gage height, 6.47 

feet}; minimum, 0.3 second-foot Sept. 20-30.

1929-40: Maximum discharge, 24,000 second-feet Mar. 2, 1938; no flow at times in 

each year 1935-39.

Cooperation.- Record furnished by Los Angeles County Flood Control District, through 

H. E. Heflger, chief engineer.

Discharge, In second-feet, water year October 1939 to September 1940

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 

SO 

31

Oct.

1.4 

1.4 

1.4

1.4 

1.2 

1.2 

1.1 

1.2

1.0 

1.1 

1.1 

1.1

1.1

1.1 

1.0 

1.0 

1.1 

1.1

1.0

1.1

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

.9 

.9 

1.0

Hov.

1.0 

.9 

.9

.9

1.0 

1.1 

1.0 

.9

1.0 

1.0 

1.0 

1.0 

1.0

1.0 1.1 1.1 1.1 1.1

1.2 

1.2 

1.2 

1.2 

1.4

1.4 

1.6 

1.6 

1.6 

1.6

Dec.

1.2 

1.1

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.1 

1.1

1.2 

1.2 

l.S 

1.6 

1.6

1.4 

1.4 

1.4 

1.6 

1.4 

1.4

Jan.

1.6 

2.0

1.2 

1.3 

19 

3.2 

2.9

2.2 

2.2 

2.2 

2.2 

2.2

2.2 

2.5 

2.5 

2.7 

2.7

2.9 

3.1 

13 

4.8 

1.6

1.4 

1.4 

1.2 

1.1 

1.0 

.8

Feb.

36 

9.5

2.2 

1.8 

2.0 

2.0 

1.8

1.8 

2.0 

2.0 

2.4 

1.6

1.8 

1.8 

1.6 

1.6 

1.6

1.8 

2.0 

2.0 

2.0 

16

8 

3.0 

2.4 

4.7

Month

Oot 

Ho\ 

Dec

C

Jan 

Pet 

Mai 

API 

Maj 

Jur 

Ju3

Auj

Set

V'ater year 1939-

Mar.

2.6 

2.2 

2.2

2.2 

2.2 

2 2 

Z. 2 

2.2

12 

25 

24 

22 

11

3.4 

3.4 

3.4 

3.0 

3.0

3.0 

3.0 

3.0 

2.6 

2.6

2.6 

2.6 

2.4 

2.4 

3.0 

7.5

Apr.

2.0 

1.8 

l.S

1.8 

1.8 

1.8 

.9

1.3 

1.8 

1.6 

1.3 

2.0

1.8 

1.6 

1.6 

1.6 

1.6

1.6 

1.8 

2.0 

1.8 

1.8

8 

3.9 

2.4 

2.2 

1.8

Seoondfoot-days

34.3 

34.1 

41.9

4,137.1

91.9 

206.9 

167.5 

63.6 

34.0 

36.3 

49.2 

21.2 

10.9

791.8

May

1.6 

1.6 

1.3

1.1 

1.1 

1.1 

.7

1.3 

.7 

.9 

.9 

.9

.9 

1.1 

1.3 

1.3 

.9

.9 

.9 

.9 

1.1 

.7

1.1 

1.1 

1.1 

1.3 

1.1 

1.1

IfflTHnnim

1.4 

1.6 

1.8

82

19 

79 

25 

8 

1.6 

1.8 

2.2 

1.3 

.4

79

June

.9 

1.1 

1.6

1.3 

1.3 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.3 

1.3 

1.1 

.9 

.9

1.1 

1.1 

1.1 

1.1 

1.3

1.1 

1.3 

1.6 

1.6 

1.1

July

1.1 

1.1 

1.1

1.3 

1.6 

1.6 

1.6

1.6 

1.3 

1.6 

1.6 

1.6

1.8 

1.6 

1.8 

1.8 

2.0

2.0 

1.6 

l.S 

1.8 

1.8

2.2 

2.2 

1.6 

1.3 

2.0 

1.3

lHn<nnim

0.9 

.9 

1.1

.8

.8 

1.6 

2.2 

.9 

,7 

.9 

1.1 

.4 

.3

.3

Aug.

.9 

.9 

1.3

1.1 

1.3 

1.3 

.7

.7 

.5 

.5 

.5 

.7

.7 

.7 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.4

.4 

.4

.4 

.4 

.4 

.4

Mean

1.11 

1.14 

1.35

11.3

2.96 

7. IS 

5.40 

2.12 

1.10 

1.21 

1.59 

.68 

.36

2.16

 Sept.

.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

.3

Run-off in 

acre-feet

68 

68 

83

8,210

182 

410 

332 

126 

67 

72 

98 

42 

22

1,570
SANTA CLARA RIVER BASIN 

Piru Creek near Piru, Calif.

115

Location.- Water-stage recorder, lat. 34°25'30n , long. 118°45'45", in southern part of 

'I'emescal grant, about If miles northeast of Piru, Ventura County, and 2 miles upstream 

from mouth. Altitude of gage, about 780 feet.

Drainage area.- 432 square miles.

Records available.- October 1911 to September 1913 and October 1934 to September 1940. 

uctober 1927 to September 1934, at site at Piru, li miles downstream.

Average discharge.- 13 years (1927-40), 44.6 second-feet.

Extremes.- Maximum discharge during year, 1,470 second-feet Feb. 1; minimum daily, 0.4 

second-foot Aug. 14, 22, 23.

1911-13, 1927-40: Maximum discharge, 35,600 second-feet Mar. 2, 1938, by slopearea method; no flow during parts of some years.

Remarks.- Records fair. Doheny ditch diverts above station and Piru Water Co.'s ditch 

Deiow.

Discharge, in second-feet, water year October 1939 bo September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

34 

32 

28 

24 

18

18 

18 

16 

15 

13

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

11 

11 

11

Hov.

12 

13 

12 

13 

13

13 

13 

16 

18 

16

15 

14 

14 

14 

13

13 

13 

13 

13-

13

13 

13 

13 

13 

14

15 

15 

15 

15 

14

Dec.

14 

13 

13 

12 

13

13

14 

14 

14 

16

19 

16 

16 

14 

14

14 

13 

13 

13 

14

a!4 

a!4 

a22 

a24 

a20

a!9 

a!8 

a!8 

a!8 

a!7 

al6

Jan.

a!5 

a!4 

a!4 

a!8 

a!7

a!7 

a40 

166 

66 

43

39 

45 

36 

a 29 

a25

a22 

a20 

-a20 

a!9 

a!9

a!8 

a!8 

83 

69 

37

a28 

a26 

a24 

a22 

a22 

a25

Feb.

596 

182 

298 

283 

132

71 

68 

60 

54 

52

49 

45 

43 

47 

49

40 

39 

37 

a36 

a35

a34 

91 

82 

39 

340

649 

a240 

a!80 

161

Month

Oot

NO'8

Dec 

C

Jan 

Feb 

Mar 

Apr 

toy 

Jun 

Jul 

Aug 

Sep

W

alendar year 193 9......................

11.....................................

ater year 1939-4 0......................

Mar.

116 

93 

77 

73 

68

a63 

a58 

54 

52 

50

47 

43 

40 

39 

39

37 

37 

36 

36 

33

33 

33 

34 

33 

33

33 

34 

34 

33 

33 

83

Apr.

99 

68 

54 

50 

47

42 

40 

40 

39 

37

34 

33 

32 

30 

30

29 

26 

26 

25 

25

23 

22 

23 

23 

23

45 

29 

24 

24 

23

Seoondfoot-days

465 

414 

482

14,221.6

1,056 

4,032 

1,507 

1,065 

461 

173.9 

51.2 

30.7 

54.7

9,792.5

May

23 

22 

22 

20 

19

19 

17 

16 

16 

14

14 

16 

14 

15 

15

15 

15 

17 

18 

14

12 

12 

12 

12 

12

11 

11 

10 

10 

9 

9

M^y^ppmi

34 

18 

24

497

166 

649 

116 

99 

23 

8.5 

4.4 

2.4 

3.2

649

June

S.5 

S 

8 

6.5 

8.5

8.5 

8 

8 

7.5 

7.5

6 

5.5 

5 

5 

5

5 

4.8

4.9 

4.8 

4.8

4.6 

4.4 

4.0 

4.0

3.6

4.0 

4.4 

4.4 

4.4 

4.4

July

4.4 

3.6 

3.6 

2.4 

1.8

1.8 

2.1 

3.2 

2.8 

2.4

1.5 

1.2 

1.2 

1.2 

1.2

1.5 

1.5 

1.2 

1.0

.8

.8 

.8 

.8 

.9 

1.0

1.0 

.8 

1.2 

1.2 

1.5 

.8

Minimum

11 

12 

12

24

14 

34 

33 

22 

9 

3.6 

.8 

.4 

1.0

.4

Aug.

0.8 

1.0 

2.1 

1.2 

1.2

1.2 

.6 

1.5 

1.5 

2.4

2.4 

2.1 

.6 

.4 

.6

.8 

1.2 

.8 

.5 

.6

.5 

.4 

.4 

.5 

.5

.5 

.6 

.5 

.6 

1.2 

1.5

Mean

15.0 

13.8 

15.5

39.0

34.1 

139 

38.6 

35.5 

14.9 

5.80 

1.65 

.99 

1.82

26.8

Sept.

1.8 

1.0 

1.2 

2.4 

3.2

2.1 

2.1 

2.1 

1.8 

1.5

1,5 

1.2 

1.5 

1.5 

al.6

al.6 

al.7 

al.7 

al.8 

al.8

al.9 

al.9 

a2.0 

a2.0 

a2.1

a2.1 

a2.2 

a2.2 

a2.0 

al.8

Run-off in 

acre-feet

922 

821 

956

28,210

2,090 

8,000 

2,990 

2,110 

914 

345 

102 

61 

108

19,420

Peak discharge.- Jan. 7 (12 p.m.) 543 sec.-ft.; Jan. 23 (7t30 p.m.) 543 sec.-ft.; Feb. 1 (12 m.) 

1,470 sec.-ft.j Feb. 3 (3:45 p.m.) 668 sec.-ft.; Feb. 26 (2:30 a.m.) 1,130 sec.-ft.

a No gage-height record; discharge computed on basis of discharge measurements, probable shape 

of recession curve, and records for Sespe Creek near Flllmore.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
116 SANTA CLARA RIVER BASIN

Sespe Creek near Flllmore, Calif.

Location.- Water-stage recorder, lat. 34°26'55", long. 118°55'35", In NEi sec. 12, T. 4 

N., R. 20 W., 0.1 mile downstream from Little Sespe Creek and 3i miles north of Flllmore. Altitude of gage, about 590 feet.

Drainage area.- 254 square miles.

Records available.- November 1934 to September 1940. September 1911 to September 1913 

ana October 1927 to November 1934 at site at Sespe, 3 miles downstream.

Average discharge.- 13 years (1927-40), 85.9 second-feet.

Extremes.- Maximum discharge during year, 4,400 second-feet Feb. 25 (gage height, 9.70 

reet), from rating curve extended above 1,000 second-feet by logarithmic plotting; 

mlninum, 0.1 second-foot Nov. 22-24.

1927-40: Maximum discharge, 56,000 second-feet Mar. 2, 1938, by slope-area method; 

no flow at times during most years.

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

About 4.580 acre-feet diverted by Flllmore Irrigation Co. 1 mile above station. (See 

p. 117 ).

Revisions.- Flllmore Irrigation Co. diverted from Sespe Creek above the station about 

6,630 a ere-feet in ],938 and 6,290 acre-feet In 1939; these figures supersede those 

published in Water-Supply Papers 861 and 881 respectively.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

S

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

SO.

ES

S3

24

25

26

27

28

29

80

31

Oct.

22

f20

al8

a!7

f!6

16

18

17

13

11

9.5

6

4.2

4.0

4.0

3.8

al.O

a. 4

a. 3

a. 3

a. 3

a. 2

f.2

.2

.2

.2

8

12

7

1.8

.3

HOT.

0.2

.2

.2

.2

.2

.2

.2

3.5

9

8

6.5

6

6

6

6

6

4.2

3.2

3.0

1.5

.2

.1

.1

.1

1.6

3.5

1.6

1.5

1.6

1.7

Dec.

1.5

1.5

1.4

1.6

.6

.2

.9

1.6

1.8

2.5

12

11

7

5.5

5

5

5

5

4.8

5

4.8

4.8

20

28

18

15

12

8

7

7

7

Jan.

9

12

13

19

19

19

146

382

74

49

49

48

a44

a 40

a36

a32

a30

a28

f27

27

27

27

109

76

43

33

31

29

27

27

28

Feb.

609

266

502

378

180

124

94

81

71

65

60

55

53

65

57

51

47

46

45

43

42

364

352

163

1,530

1,160

396

294

294

_

-

Month

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

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

Mav....... ...

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

Water year 1939-40...... ................

Mar.

245

206

171

149

130

113

100

90

82

78

71

64

60

60

58

57

57

55

53

51

50

48

46

43

43

43

45

43

43

41

166

Apr.

168

92

78

73

66

57

53

50

46

42

40

36

34

34

35

34

32

31

30

31

28

24

24

24

24

90

78

50

42

36

Seoondfoot-days

231.9

82.3

210.5

16,077.3

1,560

7,487

2,561

1 482

*428 9

13 . 6

7.3

6.2

6.0

14,076.7

May

32

30

29

28

27

26

24

23

21

19

16

15

11

7.5

6.5

5.5

5

15

24

13

9

7.5

6.5

5

4.0

3.8

3.8

4.2

3.3

2.4

1.9

Mmr4nnim

22

9

28

939

382

1,530

245

168

32

1.0

.3

.2

.2

1,530

June

1.0

.6

.5

.5

.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

-

July

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

,2

.2

IHTi^imm

0.2

.1

.2

.1

9

42

41

24

1.9

.4

.2

.2

.2

.1

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Mean

7.48

2.74

6.79

44.0

50.3

2S8

82.6

49.4

13.8

.45

.24

.20

.20

38.5

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

-

Run-off in 

acre-feet

460

163

418

31,880

3,090

14,850

5,080

2,940

851

27

14

12

12

27,920

Peak discharge.- Jan. 7 (11 o.m.) 1,230 sec.-ft.; Jan. 23 (6:20 c.m.) 406 see.-ft.; Feb. 1 (12m.) 

1,440 sec.-ft.; Feb. 3 (2 p.m.) 1,880 sec.-ft.; Feb. 22 (2:30 p.m.) 952 s«c.-ft.; Feb. 25 (4 p.m.) 

4,400 sec.-ft.

a No gage-height record; discharge computed on basis of probable shape of recession curve.

f Discharge computed from partly estimated gage-height record.
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 FUl^cre. Altitude of gage, about 660 feet.

Records available.- October 1927 to September 1932 (monthly figures only), October 1935 

to September 1939 (annual figures only), and October 1939 to September 1940.

Average discharge.- 10 years, 5.39 second-feet.

Remarks.- Records good. Staff gage read, once daily. Canal diverts from Sespe Creek in 

SEt sec. 1, T. 4 N., R. 20 W., 1 mile above gaging station on Sespe Creek near Fillmore.

Cooperation.- Gage-height record furnished by Fillmore Irrigation Co.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

Z 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. HOT. Dec. Jan. Feb.

Month

Oot

Nov 

Dec

C

Jan 

Fell 

Max 

Apr 

May 

fan 

Jul 

Aug 

Sep

W

alendar year

11.....................................

ater year 1939-4

Mar. Apr.

2.5 

2.2 

2.0 

1.6 

1.9

1.9 

1.7 

1.7 

2.0 

1.9

1.9 

2.8 

2.8 

3.4 

3.1

6 

5.5 

5.5 

6 

6

9 

10 

8 

8 

3.6

6 

1.3 

1.3 

2.5 

2.5

Secondf cot-days

273.5 

371 

326.0

-

48.5 

29 

51.5 

114.6 

339.7 

322.0 

168.1 

140.4 

127.6

2,311.9

May

3.6 

3.1 

3.1 

3.4 

3.4

3.6 

3.6 

4.2 

4.8 

3.9

9 

11 

14 

14 

14

14 

15 

15 

15 

14

14 

15 

15 

15 

16

15 

16 

15 

16 

16 

15

Mftyi ppiiri

:

-

10 

16 

15 

7 

5 

4.4

-

June

15 

15 

15 

15 

15

14 

14 

14 

13 

13

12 

12 

10 

10 

10

10 

10 

9.5 

9.5 

9.5

8.5 

8 

8 

8 

8

7.5 

'7.5 

7 

7

7

July

7 

7 

7 

7 

7

6 

6 

5.5 

5 

5.5

5.5 

5 

4.8 

4.8 

4.8

5 

5 

5.5 

5.5 

5

5.5 

5 

5 

4.4 

4.4

4.4 

5 

5.5 

5 

5 

5

m^imum

:

-

1.3 

3.1 

7 

4.4 

4.2 

4.1

-

Aug.

4.6 

5 

5 

4.8 

5

4.8 

4.8 

4.6 

4.6 

4.6

4.6 

4.6 

4.6 

4.6 

4.2

4.2 

4.2 

4.2 

4.2 

4.2

4.2 

4.2 

4.6 

4.6 

4.6

.6 

.6 

.2 

.6 

.6 

4.2

Mean

8.82 

12.4 

10.5

-

1.56 

1.0 

1.66 

3.82 

11.0 

10.7 

5.42 

4.53 

4.25

6.32

Sept.

4.2 

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

4.4 

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

Run-off in 

acre-feet

542 

736 

647

-

96 

58 

102 

227 

674 

639 

333 

278 

253

4,580

Note.- Monthly discharge October to March computed on basis of discharge 

in flow as Indicated by Sespe Creek recorder graph.

urementa and changes
-L-LB SANTA CLARA RIVER BASIN

Santa Paula Creek near Santa Paula, Calif.

Location.- Water-stage recorder, lat. 34°23'40", long. 119°04'35", near east boundary of 

L'x Mission San Buenaventura grant, 50 feet upstream from Santa Paula Water Works diversion dam and about 3 miles north of Santa Paula, Ventura County. Altitude of gage, 

about 650 feet.

Drainage area.- 39.8 square miles.

Records available.- October 1927 to September 1940. April 1912 to September 1913, at 

site about £t miles upstream. October 1927 to February 1931, at site 500 feet downstream, below diversion of Santa Paula Water Works.

Average d1scharge.- 13 years (1927-40), 17.3 second-feet.

Extremes.- Maximum discharge during year, 364 second-feet Feb. 25 (gage height, 3.34 

feet); minimum, 0.2 second-foot Sept. 2.

1927-40: Maximum discharge, 13,500 second-feet Mar. 2, 1938 (gage height, 10.56 

feet), by slope-area method; minimum, that of Sept. 2, 1940.

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

A.Dout 346 acre-feet diverted above station during year.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

7 

6 

6 

5.5 

5

5.5 

6 

4.S 

3.7 

3.0

3.0 

2.4 

2.1 

3.2 

3.4

3.6 

3.2 

3.0 

2.3 

1.3

1.0 

.9 

1.1 

1.8 

2.1

3.1 

3.3 

3.1 

3.1 

3.0 

2.5

Hov.

3.0 

3.5 

3.5 

3.6 

3.5

3.4

2.4 

3.1 

3.6 

3.5

3.5 

3.5 

3.5 

3.6 

3.5

3.4 

2.8 

2.3 

2.1 

1.9

2.0 

2.0 

2.3 

3.3 

4.2

4.2 

4.3 

4.6 

4.1 

3.7

Dec.

3.8 

3.S 

3.8 

3.8 

3.8

3.8 

3.8 

4.0 

4.1 

4.1

4.6 

3.4 

3.2 

2.7 

2.2

2.2 

3.6 

3.4 

3.8 

3.4

2.0 

2.1 

4.6 

4.6 

4.3

4.3 

4.1 

4.0 

4.0 

3.8 

3.7

Jan.

3.5 

3.3 

3.4 

4.3 

3.6

3.7 

10 

30 

15 

15

15 

14 

11 

9.5 

8.5

8.5 

7.5 

7.5 

7.5 

8.5

10 

11 

16 

8.5 

7

8 

9 

9.5 

9.5 

9.5 

14

Feb.

74 

20 

76 

47 

27

24 

21 

16

13 

12

11 

11 

10 

13 

11

10 

9.5 

9.5 

9.5 

9.5

9.5 

41 

40 

32 

151

131 

50 

30 

35

Month

Dot

Hov 

Dec

0

Jan 

Pet 

Mar 

Apr 

May

JUD

Jul

Aug 

Sep

W ter year 1939-4

Mar.

18 

a!7 

a!6 

a!6 

a!5

a!5 

a!4 

a!4 

a!4 

a!4

f!4 

13 

13 

13 

12

12 

12 

11 

11 

10

9.5 

9 

9 

8.5 

8.5

9 

flO 

a9.5 

a9.5 

a9 

a35

Apr.

a30 

f!3 

10 

12 

14

11 

11 

11 

9 

S

7.5 

7 

7

7

7 

6.5 

6 

6 

6

6 

6.5 

6 

7 

S.5

33 

15 

10 

8 

6.5

Seoondfoot-days

105.0 

97.9 

112.8

3,354.0

301.3 

953.5 

400.5 

302.5 

165.6 

105.8 

45.5 

39.5 

43.5

2,673.4

May

6.5 

6 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.5 

5

4.9 

5.5 

7

4.3

4.7 

5 

5.5 

6 

5.5

5.5 

5.5 

5.5 

5 

5

6 

6.5 

5 

4.9 

3.9 

3.7

Mfl-y^iffimi

7

4.6 

4.6

134

30 

151 

35 

33 

7 

5 

3.5 

1.9 

2.3

15i

June

3.3 

3.3 

3.5 

4.7 

4.7

4.5 

4.5 

3.1 

2.6 

3.1

3.3 

3.3 

3.5

3.7

5 

3.5 

3.5 

3.7 

3.7

3.5 

3.3 

3.3 

3.1 

2.5

3.0 

3.0 

3.1 

3.3 

3.5

July

3.5 

2.3 

2.5 

2.5 

2.6

1.9 

1.9 

1.5 

1.6 

1.2

1.0 

.8 

.8

1.1

.8 

.8 

.9 

1.1 

1.1

1.1 

.8 

.6 

.6 

.9

.8 

2.0 

3.0 

2.0 

1.7 

1.5

Minimum

0.9 

1.9 

2.0

.9

3.3 

9.5 

8.5 

6 

3.7 

2.6 

.6 

.8 

.5

.6

Aug.

1.0 

.9 

1.0 

.9 

1.1

1.1 

1.2 

1.8 

1.9 

1.2

1.6 

1.9 

1.8

1.2

1.5 

1.6 

1.4 

1.2 

.8

1.0 

1.1 

1.4 

1.5 

1.5

1.5 

1.6 

.9 

.9 

.9 

.9

Mean

3.39 

3.26 

3.64

9.19

S.72 

32*9 

12.9 

10.1 

5.34 

3.53 

1.47 

1.27 

1.46

7.30-

Sept.

0.9 

.6 

.6 

.5 

1.2

1.4 

1.2 

1.5 

1.2 

.9

1.5 

1.8 

1.4

1.6

2.2

1.5 

1.5 

1.8 

2.3

2.3 

2.3 

1.9

1.2 

1.1

1.4 

1.4 

1.1 

1.8 

2.0

Run-off in 

acre-feet

208 

194 

224

8,640

598 

1,890 

794 

600 

328 

210 

90 

78 

86

5,300

Peak discharge.- Jan. 8 (1:45 a.m.) 90 sec.-ft.; Feb. 1 (11:45 a.m.) 208 sec.-ft.; Feb. 3 

(2 p.m.) 287 sec.-ft.; Feb. 22 (4 p.m.) 104 sec.-ft.; Feb. 25 (4 p.m.) 364 sec.-ft.

a No gage-height record; discharge computed on basis of rainfall records and records for Sespe 

Creek near Fillmore.

f Discharge computed on basis of partly estimated gage-height record.
VENTURA RIVER BASIN 

Matlllja Creek at Matlllja, Calif.

119

Location.- Water-stage recorder, lat. 34°28'50", long. 119°18'06", In SWf sec. 28, T. 5 

N., R. 23 W., 0.1 mile southeast of Matlllja. Altitude of gage, about 950 feet.

Drainage area.- 55 square miles.

Records available.- October 1927 to September 1940.

Average discharge.- 13 years, 26.9 second-feet.

Extremes.- Maximum discharge during year, 792 second-feet Feb. 25 (gage height, 5.12feet) 

from rating curve extended above 200 second-feet on basis of velocity-mean deptli relation; minimum, 0.5 second-foot Sept. 27 (gage height, 1.97 feet).

1927-40: Maximum discharge, 15,900 second-feet Mar. 2, 1938, by slope-area method; 

minimum, 0.4 second-foot Oct. 28, 1930.

Remarks.- Records good. No diversions above station.

Cooperation.- Results of four discharge measurements furnished by Ventura County Water 

survey.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Si

22

S3

24

25

26

27

28

29

SO

51

Oct.

7

7

7

6.5

6.5

6.5

7

6.5

6

6

6

5

5

5

5

5

5

5

5

5

4.7

4.7

5

5

5

5

5

5

5

5

5

HOT.

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

6

6

6

6

-

Dec.

6

6

6

6

6

6

6

6

6

6.5

7

6.5

6

6

6.5

6

6

6.5

6.5

6.5

6.5

6.5

8

8

7

7

7

7

7

7

6.5

Jan.

7

6.5

6.5

8.5

8

8

15

29

17

17

22

17

15

13

12

12

12

12

11

10

9.5

9.5

17

15

12

11

10

10

10

10

11

Feb.

49

34

80

60

35

29

24

22

21

20

17

16

17

20

17

15

15

15

15

14

13

58

44

29

255

192

96

78

80

_

-

Honth

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

Calendar year 1939. .....................

Jan 

Fob

Un,.

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

1U7.. .....................................

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

Water year 1939-40. .....................

Mar.

62

53

50

45

41

38

36

34

31

30

29

27

26

25

24

24

24

22

22

22

21

20

18

18

17

17

17

17

16

17

41

Apr.

29

22

21

20

18

16

16

15

15

14

14

14

14

14

14

14

13

13

12

12

12

12

12

12

12

20

15

13

12

11

Secondf dot-days

171.4

163.5

201.5

5,548.8

383.5 

1,380 

884

451

263.0

154.1

88.9

65.9

60.8

4,267.6

May

10

10

10

10

9.5

10

9.5

9

8.5

8.5

S.5

8.5

8.5

8

8

7.'5

8.5

9

8.5

8

8

8

8

7.5

7.5

7.5

8

8.5

8

7

7

VflTT^miim

7

6

8

207

29

255 

62

29

10

6.5

3.8

2.5

2.5

265

June

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6

6

6

5.5

5

5

4.8

4.8

4.6

4.6

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

3.8

4.0

3.8

3.8

July

3.S

3.8

3.S

3.5

3.5

3.2

3.2

3.2

3.0

2.7

2.7

2.7

2.7

2.7

3.0

3.0

3.0

3.0

3.0

2.7

2.7

2.5

2.5

2.3

2.3

2.3

2.3

2.5

2.5

2.5

2.3

H»ift4mmM

4.7

5

6

4.0

6.5 

13 

16

11

7

3.8

2.3

1.3

1.5

1.3

Aug.

2.3

2.3

2.3

2.3

2.5

2.5

2.5

2.5

2.5

2.3

2.3

2.3

2.1

2.1

2.1

2.5

2.1

2.1

2.1

1.7

1.3

1.7

1.9

1.9

2.1

2.1

1.9

2.1

1.9

1.9

1.7

Mean

5.53

5.45

6.50

15.2

12.4 

47.6 

28.5

15.0

8.48

5.14

2.87

2.13

2.03

11.7

Sept.

1.9

2.1

2.1

2.1

2.1

2.3

2.1

2.1

2.1

1.9

1.9

2.1

2.1

2.3

2.3

2.5

2.1

2.1

2.1

2.1

2.1

1.9

1.9

1.9

 1.9

1.9

1.5

1.7

1.7

1.9

Run-off in 

aore-feet

340

324

400

11,020

761 

2,740 

1,750

895

522

306

176

131

121

8,470

Peak discharge.- Feb. 1 (3 p.m.) 78 aec.-ft.; Feb. 3 (5 p.m.) 164 sec.-ft.j Feb. 

sec.-ft.; Feb. 25 (4 p.m.) 792 sec.-ft.

(6 p.m.) 132-

9-832 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
120 VEWTURA RIVER BASIN 

Ventura River near Ventura, Calif.

Location.- Water-stage recorder, lat. 34°20'55", long. 119°18'20", in southeast corner 

or Santa Ana grant, at highway bridge at entrance to Foster Memorial Park, a quarter 

of a mile downstream from Ventura diversion dam and Coyote Creek and 5 miles north 

of Ventura, Ventura County. Altitude of gage, about 210 feet.

Drainage area.- 187 square niles.

Records available.- September 1911 to January 1914, October 1929 to September 1940.

Average discharge.- 13 years (1911-13, 1929-40), 55.7 second-feet.

Extremes.- Maximum discharge during year, 4,330 second-feet Feb. 25 (gage height, 6.98 

feet) from rating curve extended above 200 second-feet on basis of shape of previous 

high-water curve; no flow for several periods.

1911-13, 1929-40: Maximum discharge, 39,200 second-feet Mar. 2, 1938, by slopearea and contracted-opening methods; no flow for periods In. each year except 1937-39.

Remarks.- Records good Jan. 8 to Apr. 30 and fair the remainder of the year. Water dlverted from Ventura River and tributaries for Irrigation and municipal supply.

Cooperation.- Results of eight discharge measurements furnished by Ventura County Water 

Survey.

Discharge, in second-feet, water year October 1939 to September 194O

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.

4.5 

4.3 

3.2 

3*2 s'.5

3.2 

3.2 

2.9 

2.5 

2.0

1.5 

1.2 

1.0 

.8 

.6

.4 

.2 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

HOT. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1 

.1 

.1 

.1

.1 

.1

.4 

.3 

.2

.2 

.1

.1 

.1 

.1 

.1

Jan.

0.1 

.1 

.1 

1.0 

.7

.8 

1.5 

19 

9 

2.9

9 

4.S 

1.9 

1.2 

2.2

1.4 

.8 

.8 

.8 

.7

.6 

.7 

1.9 

14 

4.3

2.9 

3.2 

3.2 

2.5 

2.2 

4.7

Feb.

90 

52 

142 

122 

62

41 

25 

23 

22 

22

22 

21 

20 

28 

28

22 

22 

16 

14 

14

15 

45 

85 

56 

1,180

596 

188 

122 

137

Month

Oot 

Nov 

Dec

0

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

H

alendar year 1939 ......................

vary

ater year 1939-40. .....................

Mar.

93 

82 

71 

58 

52

48 

43 

39 

38 

33

33 

33 

30 

28 

25

23 

23 

23 

21 

20

20 

20 

17 

18 

18

18 

20 

18 

14 

12 

78

Apr.

62 

36 

30 

30 

34

30 

26 

22 

20 

18

14 

13 

12 

9.5 

8.5

8 

6.5 

9.5 

9.5 

8.5

8.5 

9.5 

11 

14 

14

39 

26 

11 

10 

9.5

Secondfoot -days

38.1 

0 

2.2

7,128.1

99.0 

3,232 

1,069 

559.5 

292.5 

154.5 

54.5 

10.6 

4.3

5,516.2

May

8.5 

9.5 

12 

10 

9

9 

8 

9.5 

10 

7.5

7.5 

9.5 

11 

9.5 

8.5

9.5 

10 

10 

9 

8.5

10 

10 

9.5 

10

11

9

8 

11 

10 

9 

9

Mqyjunya

4.5 

0 

.4

642

19 

1,180 

93 

62 

12 . 

9.5 

6 

3.9 

.5

1,180

June

9.5 

6.5 

3.9 

6 

5.5

5 

5.5 

4.6 

4.6 

7

4.9 

3.2 

2.8 

5 

4.9

8 

6.5 

4.6 

3.7 

3.7

2.8 

2.4 

6 

8.5 

6

1.6 

1.8 

6 

8 

6

July

6 

5.5 

2.4 

2.0 

1.8

2.6 

2.5 

4.4 

2.8 

2.6

2.8 

.8 

.8 

1.0 

1.6

1.1 

.6 

.3 

.2 

.3

.3 

.2 

.3 

.2 

.2

.4 

.7 

2.0 

3.7 

3.7 

.7

Minimum

0 

0 

0

0

.1

14 

12 

6.5 

7.5 

1.6 

.2 

0 

0

0

Aug.

0.3 

.2 

.1 

1.0 

3.9

1.8 

.2 

.1 

.1 

.2

.2

.2 

.2

.1 

.1

O

0 

0 

0 

.3

.4 

.4 

.3 

.2

.2

.1 

0 

0 

0 

0 

0

Mean

1.23 

0 

.07

19.5

3.19 

112 

34.5 

18.6 

9.44 

5.15 

1.76 

.34 

.14

15.1

Sept.

0 

0 

.3 

.5 

.5

.3

.3 

.3 

.3

.2

.2 

.2 

.2 

.2 

.1

.1 

,1 

.1 

.1 

.1

.1 

.1 

0 

0 

0

0 

0 

0 

0 

0

Run-off in 

acre-feet

76 

0 

4.4

14,140

196 

6,410 

2,120 

1,110 

580 

306 

108 

21 

8.5

10,940

Peak discharge.- Feb. 1 (12 m.) 188 sec.-ft.; Feb. 3 (5 p.m.) 346 sec.-ft.; Feb. 25 (5:45 

4,330 sec.-ft.

Note.- Discharge during periods of doubtful or no gage-height record computed on following 

bases: Oct. 4 to 6, one measurement and interoolationj Oct. 9 to 23, probable shape of recession 

curve and field estimate of no flow on Oct. 23; Oct. 24 to Jan. 7, on basis of several field estimates, two measurements, and records for Coyote Creek near Ventura; Aug. 9 to 15, one field estimate and report of no flow prior to rise of Aug. 20.
VENTURA RIVER BASIN 121

Coyote Creek near Ventura, Calif.

Location.- Water-stage recorder, lat. 34°21'20", long. IIQ^IB'SO", near southeast corner 

or Banta Ana grant, 200 feet downstream from highway bridge, half a nile upstream from 

Ventura River, and 5i miles northwest of Ventura, Ventura County.

Drainage area.- 41.1 square miles.

Records available.- October 1927 to September 1932, October 1933 to September 1940.

Average discharge.- 12 years, 11.0 second-feet.

Extremes.- Maximum discharge during year, 1,220 second-feet Feb. 25 (gage height, 5.39 

feet;, from rating curve extended above 530 second-feet; minimum, less than 0.1 secondfoot on many days.

1927-32, 1933-40: Maximum discharge, 11,500 second-feet Har. 2, 1938, by slopearea nsthod; no flow Aug. 19 to Sept. 18, 1929.

Remarks.- Records good.

Cooperation.- Results of six discharge measurements furnished by Ventura County Water 

Survey.

Discharge, in second-feet, water year October 1939 to September 1940

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.

0.1 

.1

Nov.

0.1

.1 .1

.1

Dec.

0.1

.1

.2 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.4 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Jan.

0.1 

.1 

.2 

.3 

.2

.2 

.8 

.5

.4 

.7

.6 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.2 

.2 

.4 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.4

Feb.

11 

9 

74 

32 

14

9.5 

6.5 

5.5 

4.3 

3.8

3.8 

3.6 

3.4 

6 

6

4.5 

3.6 

3.4 

3.2 

3.1

3.1 

12 

20 

9.5 

284

148 

57 

33 

33

Month

Oot 

Nov 

Dec

0

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

ember. .................................

11.....................................

ater year 1939-4

Mar.

21

17 

15 

13 

11

10 

9.5 

9 

a8.5 

a8

7.5 

6.6 

6.6 

6 

6

6 

6 

6 

6 

5.6

5 

4.7 

4.3 

4.6 

4.6

4.7 

4.7 

4.5 

4.0 

4.5 

14

Apr.

12 

7 

5.5 

4.7 

5

4.0 

3.6 

3.1 

2.6 

2.3

2.1 

1.7 

1.5 

1.9 

1.7

1.6 

1.7 

1.5 

1.5 

1.6

1.6 

1.7 

1.6 

1.6 

1.8

5 

4.7 

3.2 

2.8 

2.3

Secondfoot-days

1.37 

2.07 

4.25

1,258.29

10.2 

808.8 

243.4 

92.8 

36.7 

15.0 

7.06 

2.48 

2.25

1,226.38

May

1.9 

1.7 

1.7 

1.7 

1.6

1.6 

1.6 

1.4 

l.S 

1.3

l.S

l.S 

l.S 

1.2 

l.S

1.1 

1.1 

1.1

1.0 1.1

1.0 

.8 

.8 

.9 

.9

1.0 

1.1 

.9 

.8

.7 

.7

Maximum

~

144

.8 

284 

21 

12 

1.9 

.9 

.3

284

June

0.8 

.8 

.8 

.8 

.9

.7 

.7 

.7 

.6 

.6

.5 

.4 

.4 

.4 

.4

.4 

.4 

.6 

.5 

.4

.4 

.4 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.3

July

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1

.2 

.2 

.2

.1

Ulnlmum

:

-

0.1 

3.1 

4.0 

1.5 

.7 

.3

-

Aug.

Mean

0.044 

.069

.137

3.45

.33

27.9 

7.36 

3.09 

1.18 

.50 

.228 

.080 

.075

3.35

Sept.

Run-off in 

acre-feet

2.7 

4.1 

8.4

2,490

20 

1,600 

483 

184 

73 

30 

14 

4.9 

4.6

2,430

Peak discharge.- Feb. 3 (3 p.m.) 240 sec.-ft.; Feb. 25 (4 p.m.) 1,220 sec.-ft.

a Ho gage-height record; discharge interpolated.

Note.- Discharge less than 0.1 second-foot on days for which no figures are shown.

400454 O - 41 - 9
122 SANTA YNEZ RIVER BASIN

Santa Ynez River at Jameson Lake, near Monteclto, Calif.

Location.- Water-stage recorder, lat. 34029'30", long. 119°30'50", In sec. 28, T. 5 N., 

R. 25 W., at Juncal Dam, 8.5 miles northeast of Monteclto. Altitude of gage, about 

1,950 feet.

Records available.- December 1930 to September 1940.

Remarks.- During year Monteclto County Water District diverted 1,400 acre-feet from 

Jameson Lake for municipal supply of city of Monteclto.

Cooperation.- Records furnished by Monteclto County Water District.

Discharge, In second-feet, water year October 1939 to September 1940

Month

Calendar year 1939. .....

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

'.Vater year 1939-40. .....

Maximum

1.1

51

6.0

5

O

0 3

1.1

64

Minimum

.3

.04

g

.1

.1

Mean

.50

2.10

.20

1.33

Run-off In 

acre-feet

31

1,520

12

og

12

969

Note.- Discharge Is change In storage plus diversion to city plus 

release to river plus spillway overflow plus bank storage plus 

evaporation minus precipitation.

Santa Ynez River near Santa Barbara, Calif.

Location.- Lat. 34°31'40", long. 119C 41'00", about on line between sees. 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 1307, October 1907 to January 1908, February 

1910 to November 1918, April 1920 to September 1940.

Average discharge.- 26 years (1004-6, 1911-14, 1916-17, 1920-40), 50.6 second-feet.

Remarks.- Discharge represents inflow to Gibraltar Reservoir and is computed from reservoir records. Flov, regulated by Jameson Lake. Durlrg year Monteclto County Water 

District diverted 1,400 acre-feet from Jar.eson Lake.

i;e. in second-feet, water year October 1939 to September 1940

Konth

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

Calendar year 1939......

Water year 1939-40......

Kaximum

0

5SO

9 5

0

540

Minimum

0

0

0

0

Mean

0

16.8

0

11.2

Run-off in 

acre-feet

0

12,130

0

8,150

tlote.- Discharge is change in storage plus diversion to city plus 

release to river plus spillway overflow plus evaporation minus 

precipitation.
SANTA YNEZ RIVER BASIN 123

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

Location.- Lat. 34U31'40", long. 119°41'00", about on line between sees. 10 and 11, T. 5 

N., R. 27 W., just downstream from Gibraltar Dam, 7 miles north of Santa Barbara. 

Altitude of gage, about 1,200 feet.

Records available.- April 1920 to September 1940.

Average discharge.- 20 years, 31.0 second-feet (19-years 1920-39, 32.3 second-feet; 

figure published in Water-Supply Paper 881 in error).

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 4,240 acre-feet from Gibraltar Reservoir and Wontecito County Water 

District diverted 1,400 acre-feet from Jameson Lake.

Cooperation.- Records furnished by city of Santa Barbara.

Discharge, in second-feet, water year October 1939 to September 1940

Month

Calendar year 19S9. .....

Water year 1939-40. .....

Maximum

.5

670

.5

261

Minimum

.5

0

.5

0

Mean '

.50

14.3

10 9

50

.50

5.79

Run-off in 

acre-feet

31

10 , 380

30

4,800

Note.- Discharge Is spillway overflow plus release to river.
^ SANTA YNEZ RIVER BASIN

Santa Ynez River near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°35'20", long. 120°01'25", In Canada de los 

Plrios grant, at San Marcos Road Bridge, 4 iriiles 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 1940.

Average discharge.- 10 years (1929-31, 1932-40), 77.8 second-feet.

Extremes.- Maximum discharge during year, 710 second-feet Feb. 26 (gage height, 6.18 

feet), from rating curve extended abov^ 500 second-feet by logarithmic plotting: no 

flow Oct. 1-3.

1929-31, 1932-40: Maximum discharge, 43,700 second-feet Mar. 2, 1933 (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 Oct. 1 to Jan. 9 and May 16 to Sept. 30, which 

are fair. Flow regulated by Jameson Lake and Gibraltar Reservoir; water diverted 

above station to cities of Monteclto and Santa Barbara.

Cooperation.- Results of 45 discharge measurements furnished by city of Santa Barbara.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

£ 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0

.1 

.1

.1

.2

.2

.3

.3 

.3 

.4 

.4 

.4

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.4

.4

.4 

.4 

.4 

.4 

.4 

.3

HOT.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.3

Dec.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.4 

.4 

.5 

.5 

.6

.6 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7 

.7

Jan.

0.7 

.7 

.7 

.7 

.S

.8 

.8 

.9 

1.0 

33

230 

80 

25 

13

8.5

6.5 

4.9 

3.9 

3.9 

3.9

3.5 

3.5 

6.5 

10 

8.5

7.5 

6 

4.9 

4.4 

4.4 

4.4

Feb.

4.9 

4.9 

9 

90 

33

22

17 

13 

13 

11

11 

10 

10 

15 

28

SI 

18 

17 

15 

14

13 

13 

21 

23 

63

551 

334 

197 

297

Month

Got 

HOY 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year 1939......................

11.....................................

ater year 1939-4 0. ...... ...............

Mar.

286 

177 

133 

106 

S6

76 

68 

60 

56 

53

50 

48 

44 

41 

39

36 

34 

33 

33 

33

29 

28 

27 

25 

24

23 

26 

27 

27 

29 

56

Apr.

81 

62 

48 

43 

39

36

34 

33 

30 

29

26 

24 

22 

20

18

18 

15 

13 

13 

11

10 

10 

11 

10 

10

13 

20 

21 

26 

21

Secondfoot-days

10.1 

7.1 

16.5

9,098.7

483.3 

1,888.8 

1,813 

767 

185.2 

54.9 

23.4 

16.3 

7.1

5,272.7

May

18 

15 

13 

11 

10

9 

8 

6.5 

5.5 

5

5 

5.5 

5.5 

4.4 

4.4

4.3 

4.2 

4.1 

4.0 

3.9

3.9 

3.8 

3.3 

3.7 

3.6

3.5

3.4 

3.3 

3.3 

3.3 

3.3

Maximum

0.5

.3 

.7

825

230

551 

286 

81 

18 

3.3 

1.0 

.6 

.4

551

June

3.3 

3.2 

3.2 

3.2 

3.2

3.0 

2.7 

2.4 

2.2 

2.0

1.8 

1.7 

1.6 

1.6 

1.5

1.5 

1.4 

1.4 

1.3 

1.3

1.3 

1.2 

1.2 

1.2 

1.1

1.1

1.1 

1.1 

1.1 

1.0

July

1.0 

1.0 

1.0 

1.0 

.9

.9

.9 

.8 

.8 

.8

.8 

.8 

.8 

.7 

.7

.'s

.6 

.6 

.6 

.6 

.6

Minimum

0 

.2 

.3

0

.7 

4.9 

23 

10 

3.3 

1.0 

.6 

.4 

.1

0

Aug.

0.6 

.6 

.6 

.6 

.6

.6 

.6 

.5 

.6 

.6

.6 

.6 

.5 

.6 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4 

.4

Mean

0.33 

.24 

.53

24.9

15.6 

65.1 

58.5 

25.6 

5.97 

1.83 

.75 

.53 

.24

14.4

Sept.

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.1

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

Run-off in 

acre-feet

20 

14 

33

18,050

959 

3,750 

3,600 

1,520 

367 

109 

46 

32 

14

10,460

Peak discharge.- Jan. 11 (5 p.m.) 320 sec.-ft.; Feb. 4 

LO sec.-ft.; Feb. 29 (11:30 a.m.) 431 sec.-ft.

Xpte.- Discharge for Oct. 1 to Jan. 9 computed on basi 

> to Sept. 30 on basis of discharge measurements adjust 

iz section.

.-ft.; Feb. 4 (2 a.m.) 163 sec.-ft.; Feb. 26 (1 a.m. 

-ft.

.

16 to Sept. 

ing section

of discharge measurements, that for May 

d for losses between the gage and measur9-232 February 1936

UMITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
SANTA YNEZ RIVER BASIN 125

Santa Ynez River at Solvang, Calif.

Location.- Water-stage recorder, lat. 34°35'10", long. 120°08'40", in San Carlos de 

Jonata grant, at Mission Bridge, 25 feet downstream from Alisal Creek, and 0.9 mile 

south of Solvang, Santa Barbara County.

Drainage area.- 585 square miles.

Records available.- October 1928 to November 1940. (June 1937 to November 1940, irrigatlon seasons only).

Remarks.- Records good.

Cooperation.- Gage-height record and results of 15 discharge measurements furnished by 

city of Santa Barbara.

Discharge, in second-feet, 1939-40

Day

1

2

3

4

5

6

7

8

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

6

6

6

6

6

6

6

6

5.5

6

6

6

6

5.5

5.5

5.5

5.5

5.5

5

5

5

4.8

4.7

4.6

HOT.

4.7

5.5

5.5

5

4.8

5

4.S

4.8

4.7

4.7

4.8

4.8

5

5.5

5.5

5.5

5.5

5.5

5.5

6

6

6

6

6

6.5

7

7

7

7.5

S

-

Month

1939

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

1940

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

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

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

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

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

The Derlod. .............................

June

6

5.5

5.5

5.5

6

6

6

6

6.5

6.5

6

6

6

5.5

5

4.7

4.4

4.0

3.9

4.0

3.9

3.8

3.8

3.8

3.7

3.7

3.7

3.7

3.7

3.5

-

July

3.7

3.7

3.7

3.7

3.7

3.7

3.S

3.9

3.9

3.8

3.S

3.7

3.5

3.4

3.4

3.4

3.4

3.5

3.5

3.7

3.7

3.7

3.7

3.5

3.7

3.7

3.S

3.S

3.S

3.S

3.7

£££. « 

174.1 6

170.1 S

146.3 6.5

113.8 3.9

9S.4 3.7

94.6 3.4

99.0 4.2

153.6 5.5

Aug.

3.7

3.7

3.5

3.5

3.4

3.3

3.2

3.2

3.1

3.1

3.1

3.0

3.0

3.0

3.1

3.1

3.0

3.1

3.0

2.9

2.8

2.8

2.9

3.1

3.2

3.3

3.3

3.3

3.3

3.2

3.2

Sept.

3.2

3.2

3.2

3.3

3.3

3.2

3.1

3.0

3.0

3.0

2.9

2.S

2.7

2.9

3.1

3.1

3.1

3.2

3.2

3.3

3.3

3.4

3.3

3.3

3.3

3.3

3.3

3.2

3.2

3.2

-

Oct.

3.2

3.3

3.3

3.2

3.2

3.2

a3.2

a3.2

a3.2

3.2

3.1

3.0

3.0

2.9

2.9

2.8

2.7

2.6

2.6

2.7

2.7

2.S

2.S

3.0

3.5

3.7

3.8

4.0

4.0

4.0

4.2

IIov.

4.2

4.3

4.3

4.5

4.5

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

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

Mini * Hean *££%£

4.6 5.62 345

4.7 5.57 337

3.5 4.S8 290

3.4 3.67 226

2.8 3.17 195

2.7 3.15 1S8

2.6 3.19 196

4.2 5.12 305

1,400

No gage-height record; discharge interpolated.
LtX> SANTA YNEZ RIVER BASIN

Santa Ynez River near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°38'30", long. 180°25.'50", near boundary of La 

MisIon Vleja La Purlslma grant, at highway bridge, It miles east of Lonpoc, Santa Barbara County. Altitude of gage, about 100 feet. Prior to Dec. 1, 1939, water-stage 

recorder at site at old highway bridge, about 600 feet upstream.

Drainage area.- 790 square miles.

Records available.- November 1906 to September 1918 (1909, gage heights only), April 1925 

to September 1940.

Average discharge.- 24 years (1907-8, 1910-18, 1985-40), 813 second-feet.

Extremes.- Maximum discharge during year, 752 second-feet Feb. 88 (gage height, 8.42 

reet); no flow Oct. 84 to Nov. 3, July 13 to Sept. 30.

1906-18. 1985-40: Maximum discharge, 50,100 second-feet Mar. 3, 1938 (gage height, 

88.10 feet), from rating curve extended above float measurement of 38,000 second-feet; 

no flow at times In 1989-31, 1934, 1936, 1937, 1939, 1940.

Remarks.- Records fair. Water diverted by city of Santa Barbara at Gibraltar Dam, and 

some water for Irrigation pumped from wells along banks of river.

Cooperation.- Results of 41 discharge measurements furnished by city of Santa Barbara.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

?.

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

81

22

23

PA

25

26

Oct.

0.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.1

.1

.1

.1

0

0

0

0

0

0

o

0

Nov.

0

0

0

.1

.1

.2

.2

.3

.3

.3

.3

.3

.4

.4

.4

.5

.5

.5

.6

.6

.6

.7

.7

.7

.8

.8

1.0

1.1

1.2

1.2

* -

Dec.

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.4

1.7

1.5

1.4

1.3

1.3

1.3

1.4

1.4

1.4

1.4

1.4

1.9

2.6

2.5

2.7

3.1

4.2

5

5

5

Jan.

5.5

7

9

10

12

12

14

30

30

58

150

197

143

83

64

53

48

44

39

35

34

31

80

96

68

53

46

44

40

38

36

Feb.

40

50

116

96

96

83

68

59

53

50

45

45

48

64

59

51

50

46

44

42

39

38

39

36

131

222

523

485

406

_

-

Month

Calendar year 1939. . ....................

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

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

Water year 1939-4

Mar.

475

374

877

817

180

158

138

127

117

114

107

100

93

87

82

82

80

74

68

66

64

59

52

49

49

49

50

52

52

54

70

Apr.

91

102

100

89

82

76

78

74

64

59

54

52

50

46

42

40

37

34

32

29

28

27

26

24

23

25

27

25

25

25

Seoondfoot-days

7.2

14.8

61.0

15,518.0

3.124

420.3

46.9

0 

0

10,391.1

May

24

25

25

22

22

22

21

21

19

17

16

15

15

14

13

12

12

11

11

10

9

9

8

7.5

7.5

7.5

6.5

5.5

4.9

4.4

3.5

Mmr^flfiim

0.5

1.2

5

927

197

523

475

102

3.1

0

0

523

June

3.1

3.1

2.8

d2.8

d2.7

2.7

2.3

1.9

1.9

1.9

1.6

1.6

1.6

1.6

1.6

1.3

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

.9

.7

.5

.5

d.5

d.5

July

dO.5

d.5

d.5

d.5

d.5

d.5

d.5

d.5

d.4

d.4

d.4

d.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

MJTjiintfl1!

0

0

1.2

0

36

49

23

3.5

.5 

0

0 

0

0

Aug.

Mean

0.23

.49

1.97

42.5

108

117

49.5

13.6

1.56

0 

0

28.4

Sept.

Run-off in 

aore-feet

14

29

121

30,780

3,190

6,200

2,950

834

93 

11

0 

0

20,610

Peak discharge.- Jan. 12 (4 p.m.) 228 sec.-ft.; Jan. 23 (6:30 p.m.) 289 sec.-ft.; Feb. 3 (6:30 

p.m.) 300 see.-ft.; Feb. 25 (7:30 p.m.) 434 sec.-ft.; Feb. 28 (7 p.m.) 752 sec.-ft.

d Gage-height record missing or doubtful; discharge interpolated.

Note.- Gage-height record missing or doubtful, Oct. 1-23, Nov. 4-30;'discharge computed on basis 

of discharge measurements and weather records.
SANTA MARIA RIVER BASIN 127

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 of gage, about 610 feat.

Drainage area.- 902 square miles.

Records available.- December 1929 to September 1940.

Average discharge.- 10 years, 24.2 second-feet.

Extremes.- Maximum discharge during year, 224 second-feet Feb. 26 (gage height, 3.78

feet), from rating curve extended above 50 second-feet; minimum dally, 0.1 second-foot 

Sept. 11-30.

1929-40: 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 good except those for periods of no gage-height records, 

fair. No diversion.

which are

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

Z

4

S

6

7

8

9

10

11

18

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

all

a8

a6

5.5

5.5

5.5

8

7.5

7

6

4.8

4.3

4.0

4.0

4.0

3.5

3.5

3.3

3.5

3.5

3.5

3.3

3.3

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

HOT.

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.8

a3.8

a3.8

a3.8

a3.8

a3.8

a3.8

a3.S

a5

a7

a6. 5

a6

a6

a5.5

-

Dec.

5.5

5

5

5

5

5

5.5

5

5

5.5

5.5

5.5

5.5

5.5

6

6.5

6.5

6.5

6.5

6.5

6.5

6.5

11

13

15

12

9.5

9.5

9

8.5

8.5

Jan.

9

11

12

18

13

12

12

13

16

35

71

49

47

29

24

20

19

18

17

16

16

16

22

50

48

38

37

34

31

29

29

Feb.

30

70

59

52

56

26

19

16

16

15

ISIS

15

29

23

19

15

15

14

14

13

13

13

13

20

54

82

28

36

.

-

Month

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

Calendar year 1939 ......................

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

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

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

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

Water year 1939-40......... .............

Mar.

30

25

21

19

18

15

14

13

13

12

12

12

11

11

9.5

9.5

9.5

9.5

9.5

9.5

9.5

8

7,5

7.5

6.5

7.5

9.5

9.5

11

12

21

Apr.

32

39

49

27

20

20

16

15

13

12

11

10

9

8.5

8

8

7

7

6

6

6

5.5

5.5

6

9.5

10

9

10

12

8.5

-

Seoondfoot-days

143.3

120.6

221.0

3,934.7

811

805

392.5

405.5

111.4

40.6

16.9

9.4

4.4

3,081.6

Hay

7

6.5

6

6

5.5

5

5

4.7

4.1

3.9

3.9

3.6

3.4

3.1

2.9

2.7

2.9

2.7

2.7

2.7

2.9

2.9

2.5

2.5

2.5

 2.3

2.3

2.3

2.3

2.3

2.3

Haziiffuai

11

7

15

85

71

82

30

49

7

2.3

1.0

.4

.3

82

June

2.3

2.3

2.3

2.1

2.1

2.1

2.1

1.7

1.6

1.4

1.4

1.3

1.1

1.1

1.1

1.1

1.1

1.1

1.0

1.0

.9

.9

1.0

1.0

1.0

.9

.9

.9

.9

.9

-

July

1.0

.9

.9

.9

.8

.8

.7

.7

.6

.5

.4

.4

.4

.5

.5

.5

.6

.6

.6

.5

.4

.4

.4

.3

.3

.3

.4

.4

.4

.4

.4

^T^nnim

3.1

3.3

5

.4

9

13

6.5

5.5

2.3

.9

.3

.2

.1

.1

Aug.

0.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.3

.3

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Mean

4.62

4.02

7.13

10.8

26.2

27.8

12:7

13.5

3.59

1.35

.55

.30

.15

8.42

Sept.

0,3

.2

.2

.3

.3

.3

.2

.2

.2

.2

a.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Run-off in 

acre-feet

284

239

436

7,800

1,610

1,600

779

S04

221

81

34

19

8.7

6,120

Peak discharge.- Jan. 11 (12 m.) 100 sec.-ft.j Jan. 24 (6 p.m.) 130 see.-ft.; Feb. 2 (4 p.m.) 183 

sec.-ft.; Feb. 4 (9 p.m.) 128 sec.-ft.; Feb. 26 (9 p.m.) 224 see.-ft.

a No gage-height record; discharge for Oct. 1-3 computed on basis of discharge measurements and 

probable shape of recession curve, that for NOT. 18-30 computed on basis of records for Huasna 

RlTer near Santa Maria, that for Sept. 11 Interpolated.
128 SANTA MARIA RIVER BASIN

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 1940.

Average discharge.- 10 years (1930-40), 2.04 second-feet.

Extremes.- Maximum discharge during year, 493 second-feet Jan. 10 (gage height, 3.24 

feet); no flow Oct. 14, 15, 22-24.

1929-40: Maximum discharge, 11,400 second-feet Feb. 11, 1938 (gage height, 11.26 

feet), by slope-area method; no flow during parts of several years.

Remarks.- Records fair. No diversion above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.6 

.5 

.4 

.3

.2 

.1 

.1 

O 

0

.1 

.1 

.1 

.1 

.1

.1 

0 

0 

0

.1

.2 

.1 

.1 

.1 

.1 

.1

Hov.

0.2 

.3

.4 

.4 

.4

.5 

.5 

.6

.7 

.7

.S 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.S 

.S 

.9 

.9 

1.1

2.0 

1.3 

1.2 

1.1 

1.1

Dec.

1.1 

1.1 

1.2 

1.2 

1.2

1.2 

1.3 

1.2 

1.2

1.7

2.3 

1.7 

1.5 

1.5 

1.5

1.4 

1.4 

1.3 

1.3 

1.2

1.2

1.3 

2.5 

2.7 

2.0

1.8 

1.6 

1.6 

1.5 

1.5 

1.7

Jan.

1.9 

2.9 

3.4 

7 

4.1

3.5 

3.2 

4.1 

4.3 

39

192 

110 

26

12 

8

6.5

5.5 

5 

4.6 

4.2

4.0 

4.0 

4.6 

4.4 

3.8

4.2 

4.0 

3.4 

3.2 

3.2 

3.2

Feb.

5.5 

4.4 

5 

63

45

34 

27 

24 

21 

19

18 

16 

15 

24 

35

28 

24 

24 

22 

20

19 

20 

19 

18 

23

72 

78 

68 

227

Month

Dot 

Hov 

Dec

C

Jan 

Pet 

Mar 

Apr 

Ma; 

Jun 

Jul 

Aug 

Sep

V

ua

ater year 1939-4

Bar.

164 

109 

81

60 

4S

39 

32 

28 

25 

22

19 

17 

15 

14 

13

13 

11 

10 

9.5 

9.5

8.5 

8 

7.5 

6.5 

6

6 

9.5 

8 

9 

12

Apr.

48 

45 

f37 

f32 

f28

28

19 

16 

14

13 

12 

10 

9.5 

9

8 

7 

6 

6 

5.5

5.5 

5 

4.6

4.4 

5

7.5 

6 

4.9 

4.4 

4.2

Secondfoot-days

4.9 

23.9 

46.9

547.1

489.2 

1,017.9 

842 

426.5 

79.8 

30.0 

14.2 

7.7 

7.9

2,990.9

May

4.0 

4.0 

4.0 

4.0 

3.S

3.4 

3.2 

2.9

2.5

2.7 

2.7 

2.5 

2.1 

1.9

2.1 

2.1 

2.1 

2.1 

2.5

2.9 

2.9 

2.5 

2.1 

1.9

1.7 

1.9 

1.7 

1.7 

1.6 

1.6

MqyjjiflTm

0.6 

2.0 

2.7

12

192 

227 

164 

48 

4.0 

1.6 

1.1 

.5 

.3

227

June

1.6 

1.6 

1.6 

1.6 

1.2

.9 

.8 

.9 

1.2 

1.6

1.2 

.9 

.9 

.8 

.8

1.1 

1.2 

.9 

.8 

.6

.9 

.8 

.8 

.9 

.8

.6 

.6 

.6 

.9 

.9

July

0.8 

1.1 

.9 

.8 

.8

.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.4 

.4

.5 

.5 

.6 

.5 

.5

.4 

.4 

,3 

.3 

.2

.2 

.2 

.3 

.4 

.3 

.3

HHn^l^nmi

0 

.2 

1.1

0

1.9 

4.4 

6 

4.2 

1.6 

.6 

.2 

.1 

.2

0

Aug.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.1 

..1 

.2 

.2

.3 

.3 

.2 

.2 

.2

.2 

.2 

.4

.4 

.5

.5 

.4 

.4 

.3 

.2 

.2

Mean

0.16 

.80 

1.51

1.50

15.8 

35.1 

27.2 

14.2 

2.57 

1.00 

.46 

.25 

.26

8.17

Sept.

0.2 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3 

.3

.3 

.3 

d.3 

d.3 

d.3

d.3 

d.3 

d.3 

d.3 

d.3

d.3 

d.3 

d.3 

d.3 

d.3

Run-off in 

acre-feet

9.7 

47 

93

1,080

970 

2,020 

1,670 

846 

158 

60 

28 

15 

16

5,930

Peak discharge.- Jan. 10 (11 p.m.) 493 sec.-ft.5 Feb. 4 (7 a.m.) 82 sec.-ft.j Feb. 29 (10 a.m.) 

374 sec.-ft.

d Doubtful gage-height record; discharge interpolated.

f Discharge computed from partial gage-height record and recorded range of stage.

9-232 February 1936

TOITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
ARROYO GRANDE BASIN 129

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 Luis Obispo County, a quarter 

or a mile upstream from Pacific Coast Railway bridge. Altitude of gage, about 100 

feet.

Drainage area.- 106 square miles.

Records available.- December 1939 to September 1940.

Extremes.- Maximun dIscharge during period, 426 second-feet Jan. 10 (gage height, 3.77 

feet), from rating curve extended above 75 second-feet; minimum, about 0.1 second-toot 

July 31 (gage height, 0.09 foot).

Remarks.- Records good except those for period of low flow, June to September, which are 

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

5

6 

7 

8 

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

84 

85

86 

27 

28 

29 

30 

31

Oct. HOT. Dec.

6 

6

5.5 

5.5 

8 

8 

6.5

6 

6 

6.5 

6.5 

6.5 

6.5

Jan.

7 

8 

S.5 

11 

8.5

8.5 

7.5 

7 

7 

76

14E 

46 

16 

13

11 

11 

11 

10 

10

11 

11 

14 

14 

14

19 

17 

16 

16

17 

19

Feb.

E5 

21 

3E 

73 

50

39 

36 

32 

£6 

23

21 

20 

19 

39 

3S

31 

28 

2S 

24 

2E

19 

IS 

ES

81 

68 

100 

E40

Month

Oot 

Hon 

Dec

C

Jan 

Pel 

Mar 

Apr 

Jfaj 

Jun 

Jul 

Aug 

Sep

T

ember 19-31 ............................

alendar year

/

he perlo

Mar.

1E8 

86 

69 

59 

5E

48 

44 

40 

36 

34

32 

3E 

30

ES

2S 

E6 

26 

25 

E4

E4 

23 

2E 

EE 

22

22 

23 

22 

£E 

£5 

31

Apr.

35 

3E 

28 

26 

E5

24 

23 

2E 

22 

22

El 

19 

17 

18 

17

16

16 

15 

14 

14

16 

18 

17 

16 

EO

24 

El 

20 

19 

18

Seoondfoot-days

83.5

_^

599.0 

1,223 

1,134 

615 

350.5 

1S7.4 

130.4 

102.3 

89.3

-

May

18 

17 

17 

17 

17

15 

14 

IE 

IE 

11

10 

11 

11 

10 

11

11

11 

10 

S.5 

9.5

10 

9.5 

9 

9 

7.5

9 

9 

9.5 

8 

S.5 

8.5

MqyTm^Tfl

8

_

142 

E40 

128 

35 

IS 

8 

7 

4.5 

3.9

-

June

8 

8 

6.5 

7 

6.5

6 

7 

6.5 

7.5 

7

6 

5 

4.4 

4.5 

5.5

7.5 

6.5 

6.5 

6 

5.5

5.5 

5.5 

6.5 

6 

5.5

5 

6 

6

7 

7

July

6.5 

6 

6 

6.5 

6.5

5.5 

7 

6 

4.5 

3.8

4.2 

4.7 

4.1 

4.7 

4.1

3.S 

4.1 

3.8 

3.5 

3.0

3.S 

E.7 

3.5 

2.5

E.S

2.S

z'.s

3.1 

E.7 

2.1

mTiTimmi

5.5

_

7 

IS 

2E 

14 

7.5 

4.4 

2.1

l.s

1.9

-

Aug.

2.6

l.s

2.4 

2.8

E.S

2.0 

E.O 

2.6 

3.1 

3.1

3.4 

2.6

3.'4 

3.4

3.8 

3.5 

3.S 

4.E 

3.7

4.4 

3.9 

4.4 

4.5 

4.5

4.4 

S.8 

3.7 

3.1 

2.6 

3.E

Mean

6.4E

_

19.3 

42. E 

36.6 

E0.5 

11.3 

6.E5 

4.21 

3.30 

E.98

-

Sept.

3.9 

3.0 

3.0 

3.8 

3.7

3.9 

3.S 

3.5 

3.5 

E.S

E.4 

3.0 

1.9 

1.9 

2.5

3.1 

3.1 

3.0

E°.5

Sil 

3.1 

2.6

E.6

3.0 

3.1 

E.7 

3.E 

2.8

Run-off in 

acre-feet

166

_

1,190 

£,430 

E,250 

1,2EO 

695 

372 

£59 

203 

177

8,960

9-832 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
130 SALINAS RIVER BASIN

Salinas River near Santa Margarita, Calif.

Location.- Water-stage recorder, lat. 35°24'20", long. 102°34'05", in N& sec. 15, T. 29 

B., K. 13 E., 250 feet downstream from Calf Canyon highway bridge, 250 feet upstream 

from Morano Creek, and 2$ miles northeast of Santa Margarita. Altitude of gage, about 

960 feet (from topographic map).

Drainage area.- 148 square miles (revised).

Records available.- April to September 1922, February 1932 to September 1940.

Extremes.- Maximum discharge during year, 1,040 second-^feet Feb. 29 (gage height, 8.73 

reet;; no flow Oct. 1 to Dec. 13 and June 13 to Sept. 30.

1932-40: 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.

Remarks.- Records fair.

Cooperation.- Results of three discharge measurements furnished by Corps of Engineers, 

U. B. Army.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

81

22

S3

24

25

26

27

28

29

30

31

Dot. HOT. Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

.6. 2.4

2.7

2.8

2.S

3.0

3.0

3.0

3.0

5.0

26

15

S

7.5

6.5

6

5.5

5.5

Jan.

5.5

1

6.5

15

25

12

9

32

73

303

405

195

67

37

23

18

15

13

11

9.5

8.5

7.5

8

8

8

17

19

11

9.5

8.5

9.5

Feb.

23

22

103

148

64

36

25

19

14

13

12

10

9.5

75

82

38

31

25

20

17

15

15

16

73

302

162

286

691

_

-

Month

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

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

toy.......................................

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

Water year 1939-40..... .................

Mar.

252

148

105

78

63

52

43

36

31

26

23

19

18

16

17

16

16

15

15

14

14

12

12

11

10

10

11

10

9

13

60

Apr.

129

85

51

38

44

29

24

19

16

15

15

13

11

11

10

9.5

8

8

8

7

7

7

7

6.5

7.5

12

26

15

11

9

Seoondfoot-days

0

0

108.3

1,114.3

1,396.0

2,368.5

1 175

658.5 94 7

llU

0

0

0

5,812.4

May

6.5

5.5

5

5

5

4.6

4.2

3.S

3.5

3.3

3.1

3,1

2.7

2.5

2.3

2.3

2.5

2.7

2.5

2.1

2.1

2.3

2.3

2.3

1.9

1.7

1.9

2.1

2.1

1.9

1.9

MflTr^iffwn

0

0

26

39

405

691

252

129

6.5

1.7

0

0

0

691

June

1.7

1.7

1.5

1.3

1.2

1.0

.8

.7

.7

.4

.3

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

July

Minimum

0

0

0

0

5.5

9.5

9

6.5

1.7

0

0

0

0

0

Aug.

Mean

0

0

3.49

3.05

45.0

SI. 7

37 9

£2.0 3)05

 38

0

0

0

15.9

Sept.

Run-off in 

acre-feet

0

0

215

2,210

2,770

4,700

2,330

1,310

188

23

0

0

0

11,540

Peak discharge.- Jan. 10 (6 p.m.) 898 sec.-ft.; Jan. 12 (1 a.m.) 378 sec.-ft.; Feb. 3 (11 p.m.) 

297 sec.-ft.; Feb. ~ " ' ' " ' _. .- .

1,040 sec.-ft.

14 (5 p.m.) 251 sec.-ft.; Feb. 26 (6 a.m.) 499 sec.-ft.; Feb. 29 (5 a.m.)

9-232 February 1936

UNITED STATES DEPARTMENT OF THE IHTERIOR 

Geological Surrey
SALINAS RIVER BASIN 131

Salinas River at Paso Robles, Calif.

Location.- Wire-weight gage, lat. 35°37'40", long. 120°41 1 05", at bridge on State Highway 

No. 41 in Paso Robles and about 3i miles upstream from Huerhuero Creek. Altitude of 

gage, about 700 feet (from topographic map).

Drainage area.- 389 square miles.

Records available.- October 1939 to September 1940.

Extremes.- Maximum discharge during year, 4,420 second-feet Jan. 10 (gage height, 11.32 

feet); no flow Oct. 1 to Jan. 3 and June 10 to Sept. 30.

Maximum stage known, 16.9 feet during flood of Feb. 10-13, 1938.

Remarks.- Records fair except those for period of low water, May 15 to June 9, which are 

poor. Gage read twice daily with extra readings during periods of high flow. Small 

diversions above gage.

Cooperation.- Results of 19 discharge measurements furnished by Corps of Engineers, U. S. 

Army.

Discharge, In second-feet, water Tear October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

84

25

26

27

28

29

90

31

Oct. Hov. Dec. Jan.

0

0

0

22

18

6

13

160

373

1,590

2,940

1,220

628

325

232

165

111

97

78

64

62

58

54

48

42

347

498

295

200

155

148

Feb.

399

408

705

1,160

638

420

305

237

192

175

154

128

115

280

354

237

196

189

164

134

128

124

144

134

381

1,240

1,080

1,780

3,300

_

-

Month

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

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

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

Aug 

Sep

Water year 1939-40..... .................

liar.

1,550

668

605

493

426

371

315

265

219

187

180

149

134

134

125

114

111

103

103

100

95

90

78

71

71

69

65

73

69

71

362

Apr.

37S

327

255

203

175

161

140

128

109

99

91

83

81

78

78

69

65

58

54

54

49

49

49

44

46

57

65

58

52

41

Seoondfoot-days

0

0

0

_

9,949

14,901

7,466

3,196

386.0

4.3

0

0 

0

35,902.3

May

40

34

30

28

27

27

22

21

18I1?

16

15

11

9

8

7.5

7

6.5

6

5.5

5

4.5

4

3.5

3

2.5

2

2

1.5

1.5

1

MmHunim

0

0

0

_

3*300

1,550

40

1

0

0 

0

3,300

June

1.0

.8

.5

.5

.5

.4

.3

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

July

Minimum

0

0

0

_

0

115

65

41

1

0

0 

0 

0

0

 Aug.

Mean

0

0

0

_

321

514

241

107

12.5 

.14

0

0 

0

98.1

Sept.

Run-off in 

acre-feet

0

0

0

_

19,730

29,560

14,810

6,340

766

8

C

 O

0 

0 

0

71,210

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
132 SALINAS RIVER BASIN

Salinas River near Spreckels, Calif.

Location.- Water-stage recorder, lat. 36°37'50", long. 121°40'40", In El Tore grant, at 

Dridge on Salinas-Monterey highway, half a mile upstream from Toro Creek, 2 miles west 

of Spreckels, Monterey County, and 4 miles south of Salinas, Zero of gage Is 22.64 

feet above mean sea level.

Drainage area.- 4,231 square miles (revised).

Records available.- January 1900 to August 1901, December 1929 to September 1940.

Average discharge.- 10 years (1930-40), 543 second-feet.

Extremes.- Maximum discharge during year, 26,700 second-feet Feb. 28 (gage height, 15.0 

feet); maximum gage height, 15.65 feet, Jan. 12; no flow Oct. 1 to Jan. 8.

1929-40: 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 oll-pumplng station 

opposite gage (discharge not determined).

Remarks.- Records good Jan. 11 to Mar. 27; fair Mar. 28 to July 31; poor Jan. 9, 10, Aug. 

1 to Sept. 30. Small diversions above station for irrigation.

Cooperation." Gage-height record May 11 to July 29 and results of 15 discharge measurements furnished by Corps of Engineers, U. S. Army.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

IS

16

17

IS

19

20

21

22

83

24

25

26

27

28

29

30

31

Oct. HOT. Dec. Jan.

0

0

0

0

0

0

0

0

5

20

9,930

14.30O

5,940

3,210

2,O60

1,440

1,060

805

610

467

376

308

269

230

191

220

2,500

4,280

2,550

1,800

1,440

Feb.

1,52O

1,980

2,810

4,910

6,230

3,800

2,750

2,110

1,720

1,460

1,2SO

1,120

1,000

958

1,120

1,550

1,690

1.48O

1,310

1,420

1,230

1,140

1,870

3,370

4,190

4,920

9,740

19,400

21,600

_

-

Month

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

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

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

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

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

Water year 1939-4 0................ ......

Mar.

17,300

10,200

7,200

5,380

4,090

3,250

2,760

2,370

2,050

1,840

1,690

1,580

1,460

1,340

1,280

1,180

1,080

1,030

980

930

S55

794

730

674

642

626

586

640

626

744

2,090

Apr.

2,710

3,310

2,480

2,O10

1,730

1,490

1,280

1,160

1,050

1,070

932

770

754

706

626

561

49S

450

416

373

345

333

317

288

2SO

333

294

264

240

264

Secondfoot -days

0

0

0

6,359

54,011

109 67fl

ri *Q

27J334

2 958

*230.6

91.1

31

111

272,441.7

May

261

231

213

19S

180

165

156

146

138

136

113

105

98

89

81

7O

64

59

55

51

47

44

43

38

33

30

26

25

23

20

20

Maxima

0

0

0

8S2

14,300

21,600

-17,300

3,310

261

18

4.5

_

21,600

June

IS

15

13

13

11

11

10

alO

10

9

8

7.5

7

7

7

6.5

6

5.5

5.5

4.9

4.9

a4.S

a4.6

.5

.5

a .5

.5

a .5

.5

.4

July

4.5

4.5

a4.5

4.5

4.5

4.2

4.2

3.9

3.7

a3.6

3.4

3.1

3.1

a3.1

3.1

3.1

a3.1

3.1

2.5

2.3

2.3

2.3

2.3

a2.0

1.7

1.7

1.6

1.4

al.3

al.3

al.2

mtt^imim

0

0

0

0

0

958

586

240

20

4.4

1.2

_

0

Aug.

. al.O

Mean

0

0

0

17.4

1,742

3, 782

2, 516

911

95.4

7.69 

2.94

1.0

3.7

744

Sept.

 aS."?

Run-off in 

acre-feet

0

0

0

12,610

107,100

217; 500

154^700

54,220

5,870 

457

181

61

220

540,300

Peak discharge.- Jan. 12 (2 a.m.) 19,000 sec.-ft.; Jan. 27 (11 p.m.) 6,000 sec.-ft.; Feb. 4 

.1 p.m.) 10,200 sec.-ft.; Feb. 24 (9 p.m.) 5,790 sec.-ft.; Feb. 28 (7 to 9 p.m.) 26,700 sec.-ft.; 

ib. 29 (3 p.m.) 25,700 sec.-ft.

a No gage-height record; discharge Interpolated except Aug. 1 to Sept. 30, which was computed o 

basis of discharge measurements on Aug. 17 and Sept. 27.

Note.- Discharge computed from recorder record Jan. 9 to Feb. 27, Mar. 28 to May 10; from stage

f

raph based on frequent staff-gage readings Feb. 28 to Mar. 27; from daily staff-gage readings Ma 

0 to July 29.
SALINAS RIVER BASIN 

Estrella Creek near Paso Robles, Calif.

133

Location.- Wire-weight gage, lat. 35°39'10", long. 120°30'25", In NEi sec. 19, T. 26 S., 

R. 14 E., at Fifteenmile Bridge on State Highway 41, 9 miles downstream from Cholame 

Creek and 10 miles east of Paso Robles. Altitude of gage, about 850 feet (from 

topographic map).

Drainage area.- 816 square miles.

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge during period, 1,000 second-feet Feb. 26 (gage height, 8.8 

feet from floodmarks); minimum observed, 0.6 second-foot July 13. 

Maximum stage known, 19.2 feet, from floodmarks, Feb. 11, 1938.

Remarks.- Records fair except those for periods of variable stage and shifting control, 

which are poor. Gage read twice dally with extra readings during periods of high 

water. One small diversion above station for Irrigation.

Cooperation.- Results of seven discharge measurements furnished by Corps of Engineers, 

u. s. Army.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

SO

21

22

23

24

25

26

27

28

29

30

31

Oct. Hov. Dec.

_

-

-

-

_

_

-

-

-

_

-

-

6

6.5

6

6

6

6

6

6

10

10

7

6.5

6

6

6

6

6

Jan.

8

9.5

8

10

7.5

8.5

8.5

15

10

12

649

41

13

7.5

7

7

7

7

7.5

7

7

6.5

6.5

9

9

10

9

7.5

7.5

7.5

10

Feb.

13

e37

e41

72

22

13

12

11

10

10

10

10

10

18

12

9.5

8

7.5

7

7

7

8

8.5

7.5

e41

409

59

76

333

_

-

Month

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

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

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

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

The period.. ............................

Mar.

110

49

24

15

12

10

10

9

8

7.5

8

7.5

7.5

7.5

7.5

7

7

7

7

6.5

6.5

6.5

6

6

6

5.5

6

6.5

6.5

8

31

Apr.

15

12

9

8

7

5.5

5.5

5.5

5.5

5.5

5

4.5

4.2

3.9

3.9

3.9

3.3

3.6

3.9

3.9

3.3

3.6

3.9

3.6

3.9

5

5

4.8

4.5

3.9

-

Seoondfoot-days

112

_

339 5

1 289.0

*421.5

160.1

63 . 1

35.0 

59.5

-

May

3.6

3.6

3.6

3.6

3.3

4.2

4.5

4.5

3.9

3.9

3.3

3.6

3.9

3.6

3.6

4.5

4.5

4.5

4.2

4.2

4.2

4.2

3.9

4.5

3.9

3.9

4.2

4.2

3.6

3.6

3.3

Maxn 

10

_

49

409

110

15

4.5 

3.6

1.6

1*8 

5.5

-

June

3.3

3.3

3.6

3.0

3.0

2.8

3.0

3.0

2.8

2.6

2.6

2.2

1.2

1.8

1.6

1.8

2.2

2.2

2.2

1.4

1.8

1.6

2.0

1.4

1.4

1.0

1.2

1.0

1.2

.9

-

July

1.0

1.4

1.2

1.4

.9

1.2

.7

1.0

1.0

.9

1.0

1.0

.7

.8

.9

.9

1.0

1.4

].6

1.0

1.0

.8

.7

.9

.9

.9

.8

.9

.9

1.0

.9

MAplnmr1!!

6

_

6.5

7

5.5 

3.3

3.3

.9

.7

 8 

.9

-

Aug.

0.9

1.2

1.2

1.4

1.2

1.0

1.2

1.0

1.0

1.0

1.0

.8

.8

.8

1.0

1.4

1.4

1.6

1.8

1.4

1.2

.9

.9

1.0

1.2

1.2

1.2

1.2

1.2

1.0

.9

Mean

6.6

_

11.0

44.4

13 » 6 

5.34

3.94

99

l!l3

1.98

-

Sept.

1.0

1.0

1.0

1.0

.9

.9

1.0

1.6

1.6

1.6

2.0

1.8

2.0

1.8

2.0

1.8

1.6

2.C

2.0

1.6

1.6

2.0

2.2

2.6

2.6

2.8

2.8

3.0

4.2

5.5

-

Rim-off in 

acre- feet

222

_

2,560

836 

318

343

T O^ L&O

61

69 

118

5,220

e Variable stage and shifting control, discharge computed by subdividing day and using shifts and 

transition curves.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
134 SALINAS RIVER BASIN

Naclmiento River near San Miguel, Calif.

Location.- Water-stage recorder, lat. 35°47'00", long. 12p°47'24", in SEt sec. 4, T. 25 

S., R. 11 E., about 4 miles upstream from mouth and 5.5 miles northwest of San Miguel. 

Altitude of gage, about 560 feet (from topographic map).

Drainage area.- 354 square miles.

Records available.- October 1939 to September 1940.

Extremes.- Maximum discharge during year, 17,100 second-feet Feb. 28 (gage height, 6.74 

feet); no flow for several months.

Flood of February 1938 reached a stage of 9.2 feet, from floodmarks (discharge 

41,000 seconrt-feet, by slope-area method).

Remarks.- Records fair. No large diversions.

Cooperation.- Results of four discharge measurements furnished by Corps of Engineers, 

U. S. Army.

Rating table, water year 1939-40 (gage height, In feet, and discharge, in second-feet)

0.15 3.5

.2 

.25 

.3 

.35 

.40

2.2

3.2

6.5

14

24

37

0.5 

.6

1.0 

1.2

73

123

181

247

410

620

1.4 

1.6 

1.8 

2.0 

2.5 

3.0

850

1,125

1,420

1,750

2.630

3,570

4,550

4 5,600

4.6 7,000

5 8,800

6 13,200

7 13,700

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

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. HOT. Dec. Jan.

0

20

736

1,820

709

322

504

3,900

6,330

8,240

10,500

3,400

1,530

904

620

450

357

292

247

207

1S1

158

152

207

188

4,980

2,480

1,270

826

620

1,040

Feb.

1,920

1,680

4,750

3,460

l.SOO

1,240

931

719

576

490

420

357

322

1,580

1,330

83S

766

931

664

587

521

500

3,690

1,630

2,530

4,820

8,590

10,500

7,830

-

Month

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

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

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

Aug 

Sep

Water year 1939-4

Mar.

3,870

2,590

1,920

1,400

1,120

958

814

708

631

543

460

401

34S

322

307

284

270

247

234

221

214

194

175

175

169

164

194

284

247

986

3,160

Apr.

1,460

S77

653

543

460

392

348

307

277

254

234

214

201

188

175

164

152

146

135

129

123

118

US

113

10S

135

181

129

113

98

Secondfoot -days

0

0

0

_

53,190

65,972

23,610

l|563

318.1

31 

1.55 

0

153,230.65

May

93

88

83

83

83

78

73

69

66

62

59

55

51

48

44

41

41

41

41

37

37

34

31

31

31

31

28

26

26

26

26

Maximum

0

0

0

_

10,500 

10,500

3» S70 

1,460

93

34

0

10,500

June

28

34

28

24

22

20

18

16

14

10

10

10

9

9

6.5

6.5

6.5

5.5

5.5

4.6

4.6

4.0

4.0

3.2

3.0

3.0

2.6

2.4

2.2

2.0

Minimum

0

0

0

_

0

164

9S

26

g C

0

0

July

1

Aug.

 0.05

Mean

0

0

0

_

1,716

'762

50.4

10. 6

1 

.05 

0

419

Sept.

Run-off in 

acre-feet

0

0

0

_

105,500

150 t 900

46,830

16,950

3,100

631

61 

3.1 

0

304,000

Peak discharge.- Jan. 10 (Ili30 p.m.) 16,200 sec.-ft.; Feb. 27 (6 p.m.) 16,400 see.-ft.; Feb. 28 

(3{30 p.m.) 17,100 sec.-ft.

Note.- Ho gage-height record July and August; discharge computed on basis of discharge measurements made on July 11, 19, and Aug. 16 and weather records.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
SALINAS RIVER BASIN 135

San Antonio River at Pleyto, Calif.

Location.- Water-stage recorder, lat. 35°51'55", 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.

Drainage area.- 282 square miles.

Records available.- April to September 1922, December 1929 to September 1940.

Extremes.- Maximum discharge during year, 10,300 second-feet Feb. 28 (gage height, 5.47 

feet), from rating curve extended above 8,000 second-feet; no flow Oct. 1 to Jan. 1 

and July 6 to Sept. 30.

1929-40: Maximum discharge, 10,700 second-feet Feb. 11, 1938 (gage height, 6.10 

feet present datum), from rating curve extended above 7,500 second-feet; no flow for 

several months each year.

Remarks.- Records fair. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

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. HOT. Dec. Jan.

0 

.2 

.2 

.5

.3

.2 

10

291 

878 

1,140

2,470 

1,100 

578 

388 

256

196 

168 

142 

115 

105

84 

68 

54 

68 

63

2,060 

1,050 

618 

455 

331 

359

Feb.

674 

508 

1,570 

1,410 

840

627 

492 

407 

314 

276

250 

216 

199 

349 

394

286 

288 

388 

281 

250

224 

232 

1,300 

829

776

1,270 

3,760 

5,180 

3,060

Month

Dot 

NOT 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

uary

il.....................................

ater year 1939-4

Mar.

1,770 

1,260 

990 

805 

670

586 

520 

460 

425 

380

335 

290 

261 

235 

222

207 

203 

196 

199 

196

184 

170 

159 

156 

145

142 

149 

145 

136 

203 

680

Apr.

504 

380 

325 

286

270

266 

252 

239 

222 

207

188 

166 

170 

159 

145

139 

136 

129 

122 

116

114 

106 

96 

89 

64

89 

91 

78 

73 

67

Secondfoot-days

0 

0 

0

3,354.5

13,048.4 

26,650 

12,479 

5,308 

1,077 

247.5 

2.1 

0 

0

58,812.0

May

58 

58 

60 

62 

63

56 

54 

53 

46 

42

37 

36 

36 

34 

33

30 

30 

29 

27 

26

23 

22 

22

21 

20

18 

18 

17 

16 

14 

16

Maxim 

0 

0 

0

227

2,470 

5,180 

1,770 

504 

63 

20 

.6 

0 

0

5,180

June

20 

20 

18 

17 

16

15

14 

13 

12 

10

10 

8.5 

7.5

7 

7

6.5 

6 

6 

5.5 

5

4.5 

4.1 

3.4 

3.4 

3.1

1.6 

1.0 

.9 

.S 

.7

July

0.6 

.5 

.4 

.3 

.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

Minimum

0 

0 

0

0

0 

199 

136 

67 

14 

.7 

0 

0 

0

0

Aug.

Mean

0 

0

0

9.19

421 

919 

403 

177 

34.7 

8.25 

.07 

0 

0

161

Sept.

Run-off in 

acre-feet

0 

0 

0

6,660

25,880 

52,860 

24,750 

10,530 

2,140 

491 

4.2 

0 

0

116,700

Peak discharge.- Jan. 10 (1 p.m.) 3,000 sec.-ft.; Jan 

(7p.m.) 4,770 sec.-ft.; Feb. 23 (9 a.m.) 2,180 sec.-ft 

(4 p.m.) 10,300 sec.-ft.

26 (11 a.m.) 3,060 sec.-ft.; Feb. 3 

; Feb. 27 (8 p.m.) 9,100 sec.-ft.; Feb. 28

9-238 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeological Survey
136 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 miles upstream from mouth. Altitude 

of gage, about 600 feet (from topographic map).

Drainage area.- 215 square miles.

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge during period, 2,810 second-feet Feb. 25 (gage height, 6.8 

feet,from floodmarks), from rating curve extended above 1,200 second-feet; minimum 

observed, 0.6 second-foot July 4-6.

Maximum stage known, about 11.0 feet, from floodmarks, probably during flood of 

February 1938.

Remarks.- Records fair except those for periods of variable stage and shifting control, 

which are poor. Gage read once daily with extra readings during periods of high water. 

Small diversion above station for irrigation.

Cooperation.- Results of 20 discharge measurements furnished by Corps of Engineers, U. S. 

Army.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

S

9

10

11

12

13

14

15

16

17

18

IB

20

21

22

23

24

25

26

27

28

29

50

31

Oct. HOT. Dec.

_

_

-

-

-

_

-

-

_

-

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.4

3.9

4.1

3.0

2.4

2.4

2.4

2.4

2.4

2.6

Jan.

2.8

3.9

3.4

4.3

6.5

6.5

68

109

27

e471

e584

e!03

29

14

8

6

4.9

4.4

4.3

4.3

4.3

4.2

4.3

4.4

4.3

16

13

6.5

4.6

4.7

156

Feb.

137

66

465

e613

40

19

15

14

9

7

7

7

6.5

e98

e50

20

14

7

5.5

5.5

5.5

9

252

e44

e706

354

397

976

784

-

Month

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

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

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

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

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

The period..... .........................

Mar.

153

101

82

62

41

21

16

14

14

11

9

9

8

8

9

8

7.5

7

7.5

7.5

7.5

7

6

6

6.5

8

19

18

11

e27

6248

Apr.

e285

59

13

9

8

9

9

8

8

7.5

7

6

4.6

4.0

3.8

4.0

3.8

3.8

3.6

3.6

3.4

3.4

3.2

3.2

3.6

7.5

3.8

3.4

3.0

3.0

Secondfoot-days

_

52.2

_

1,686.6

5,133.0

959.5

497 .2

53.0

28.8

25 .0

26 .7

34.9

-

May

2.4

1.9

2.0

2.2

2.0

2.0

2.0

2.0

1.9

1.9

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.3

1.1

Maximum

_

4.1

_

584

976

248

OOK COO

2.4

1.1

1.0

1.1

1.2

-

June

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

1.1

.7

.8

.7

.7

.7

.7

.9

-

July

0.7

.7

.7

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.8

.8

.8

.7

.8

.8

.8

.9

.9

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

Minimum

_

_

2.2

_

2.8

5.5

6

3.0

1.1

.7

.6

.8

1.1

-

Aug.

1.0

.9

.9

1.0

.9

 S

.8

.8

.8

.8

.9

.8

.8

.8

.8

.3

.8

.8

.8

.8

1.0

.8

.8

.8

.9

.9

.9

1.1

.9

.9

.9

Mean

_

_

2.49

-

54.4

177

31.0

16.6

1.71

 96

 81

 86

1.16

-

Sept.

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

-

Run-off in 

acre-feet

_

_

104

_

3,350

10,180

1.800

986

105

57

50

53

69

16,850

e Variable stage and shifting control; discharge computed by subdividing day and using shifts 

and transition curves.

9-232 February 1936

tnjITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
SALINAS RIVER BASIN 

Arroyo Seco near Soledad, Calif.

137

Location.- Water-stage recorder, lat. 36°16'05", long. 121°19'55", In NWi sec. 21, T. 19 

S., R. 6 E., half a mile downstream from Vaquero Creek and 11 miles south of Soledad. 

Altitude of gage, about 370 feet.

Drainage area.- 238 square miles.

Records available.- November 1901 to September 1940.

Average discharge.- 38 years (1902-40), 174 second-feet.

Extremes.- Maximum discharge during year, 13,600 second-feet Feb. 27 (gage height, 15.0 

feet); no flow Oct. 1 to about Nov. 10.

1901-40: Maximum discharge observed, about 22,000 second-feet Feb. 21, 1917, and 

Nov. 25, 1926 (page height, 16.5 feet), from rating curve extended above 7,500 secondfeet; no flow at times during several years.

Remarks.- Records good except those for periods of doubtful, or no gage-height record, 

which are poor. No large diversions above station.

Cooperation.- Results of nine discharge measurements furnished by Corps of Engineers, U. S. 

Army.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. HOT.

> al

Dec.

2.e

3.4

4.6 

4.9 

5

4.9 

4.9 

4.6 

4.6 

4.6

96 

29 

20 

15 

14

12 

12 

10 

9.5 

9

9.5 

9.5 

11 

20 

29

22 

19 

16 

15 

15 

14

Jan.

14 

. 561 

282 

771 

241

194 

349 

1,400 

2,200 

3,220

4,790 

1,520 

792 

532 

3S8

316 

265 

232 

202 

182

166 

147 

149 

190 

182

2,230 

1,060 

680 

517 

422 

481

Feb.

594 

501 

1,090 

940 

690

563 

493 

416 

366 

327

302 

278 

260 

654 

453

376 

469 

441 

387 

350

318 

474 

2,260 

1,050 

1,240

1,460 

6,830 

6,660 

4,490

Month

Oct 

No? 

Dec

C

Jan 

Fel 

Mar 

Apz 

May 

Jun 

Jul 

Aug 

Sep

1

uary

11.....................................

ater year 1939-4

Peak dls charge. -

110:30 a.m.) 3,010 

Mar . 30 ( 3 : SO p.m.! 

a No gage-height 

July 11, SZ, Aug. ] 

d Doubtful gage-l 

Pleyto, weather ree

Mar.

2,670 

1,930 

1,490 

1,160 

958

800 

705 

630 

568 

524

486 

448 

416 

381 

350

336 

311 

287 

275 

263

245 

230 

220 

212 

205

202 

314 

250 

281 

1,400 

1,690

Apr.

956 

665 

552 

490 

444

409 

378 

356 

328 

300

284 

269 

255 

245 

238

230 

218 

210 

198 

195

192 

185 

178 

168 

178

198 

175 

162 

149 

145

Seoondfoot-days

0 

30 

450.8

10,676.7

24,675 

34,734 

20,237 

8,950 

3,020 

1,342 

372 

139.5 

120

94,070.3

May

145 

134 

129 

134 

131

124 

118 

115 

113 

110

106 

102 

98 

96 

92

91 

91 

90 

85 

83

80 

79 

78 

75 

73

70 

70 

71 

71 

70 

96

Maximum

0 

96

789

4,790 

6,830 

2,670 

956 

145 

78

6,830

June

78 

71 

68 

63 

60

58 

55 

55 

54 

53

51 

49 

47 

45 

45

45 

45 

45 

44 

d40

d37 

d33 

d30 

029 

028

026 

024 

622 

d21 

d21

myHmiTm

0

2.

0

14 

260 

202 

145 

70 

21

0

July

. a!2

Aug.

> a4.5

Sept.

a4

M Run-off in 

118811 acre-feet

0 0 

1 60 

B 14.5 894

29.3 21,180

796 48,940 

1,198 68,890 

653 40,140 

298 17,750 

97.4 5.990 

44.7 2,660 

12 738 

4.5 277 

4 238

257 186,600

Jan. 4 (9 a.m.) 2,620 sec. -ft. j Jan. 11 (5 a.m.) 8,530 sec. -ft.; Jan. 26 

sec. -ft.} Feb. 23 (2 a.m.) 4,240 sec. -ft. j Feb. 27 (2:30 p.m.) 13,600 sec. -ft.; 

3,540 sec. -ft. 

record; discharge computed on basis of discharge measurements made on Hov. 29, 

6, and Sept. 27 and weather records. 

eight record; discharge computed on basis of records for San Antonio River at 

ords, and measurement a made on June 26.

400454 0-41-10
138 PAJARO RIVER BASIN

Pajaro River near Chittenden, Calif.

Location.- Wire-weight gage, lat. 36°54'00", long. 121°35'50", at State highway bridge 

0.6 mile downstream from Pescadero Creek, one mile southeast of Chittenden, and 2.5 

miles downstream from San Benito River. Altitude of gage, about 90 feet (from topographic map).

Drainage area.- 1,188 square miles (Corps of Engineers, U. S. Army). 

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge during period, 9,880 second-feet Feb. 28 (gage height, 25.5 

feet); minimum discharge observed, 3.8 second-feet July 24.

Remarks.- Records fair. Gage read twice daily with extra readings during storm flows. 

Numerous diversions above station for irrigation.

Cooperation.- Results of 27 discharge measurements furnished by Corps of Engineers, U. S. 

Army.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

J.O

11

12

13

14

15

16

17

18

19

20

21

24

25

26

27

30

31

Oct. HOT. Dec.

.

-

-

-

-

_

-

-

_

-

_

_

-

_

-

_

10

11

11

11

11

11

11

11

11

11

11

11

11

11

11

Jan.

12

23

35

78

76

34

25

156

1,110

1,140

3,080

1,710

818

476

322

238

175

134

111

92

80

72

64

62

113

1,260

1,160

768

437

265

390

Feb.

1,010

1,110

856

1,520

917

655

531

431

358

313

271

238

219

619

846

482

582

700

418

328

305

276

422

635

619

1,960

5,340

9,530

8,620

-

Month

December 17-31 ............................

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

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

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

The perio

Mar.

5,180

2,760

1,760

1,220

915

747

624

521

462

a 420

a386

a354

a318

a285

a255

228

206

184

165

147

141

123

103

90

90

92

245

219

226

1,500

3,450

Apr.

2,590

1,610

1,080

622

649

520

448

382

334

284

248

213

200

190

165

160

144

133

127

116

112

113

108

101

101

114

96

88

84

82

Seeondfoot-daye

_

164

-

23,416 

11,414

1,201 

388.0 

ggg 0

205.0

-

Hay

77

73

69

68

69

60

58

53

49

47

44

41

39

36

33

32

31

30

28

27

26

25

24

22

21

18

20

23

21

19

18

Haxljnuni

_

11

_

9 530

5,180 

2,590

18

9

-

June

16

18

17

IS

16

15

14

14

15

15

14

15

14

14

14

13

a!2

a!2

all

all

alO

' 10

10

10

10

9

10

9.5

10

9.5

-

July

10

10

10

9

8

8

a7.5

7.5

7

7

7

7.5

7

7

7

7

7

6.5

6.5

6

6

6

6

6

6

6

7

7

7

7

6.5

Minirom

_

10

-

Ol Q

90 

82

9

5

-

Aug.

6

5.5

5.5

5

5

6

6

6

6

6

6

5

6

6.5

6.5

6

5

4.5

5

5.5

5.5

6

6

6

6.5

6

6.5

6

6

6

6

Mean

_

10.9

-

755 

380

12.9

5 79

6.83

-

Sept.

5

5.5

6

6

6.5

6.5

6.5

6

6

6

6

6

6

6.5

6

6

6.5

7

7.5

8

7

8

7.5

8

8

8

8.6

9

8.5

8

Run-off in 

acre-feet

_

325

-

46,440 

22,640

2,380 

-770

- 407

182,100

a Ho gage-height recordj discharge interpolated.

9-832 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
PAJARO RIVER BASIN 139

Pacheco Creek near Dunneville, Calif.

Location.- Staff gage, lat. 36058'50", long. 121°22'50", in Ausaymas y San Felipe land 

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 (Corps of Engineers, U. S. Army). 

Records available.- January to September 1940.

Extremes.- Maximum discharge during period, 3,650 second-feet Feb. 27 (gage height, 9.90 

feet); no flow Jan. 1-7, June 12-26 (result of regulation).

Remarks.- Records fair Jan. 1 to Apr. 16, poor Apr. 17 to Sept. 30. Gage read twice daily 

with extra readings during storm flows. A detaining reservoir (capacity, about 6,000 

acre-feet) several miles upstream stores flood water for gradual release during lowflow periods.

Cooperation.- Results of 21 discharge measurements furnished by Corps of Engineers, U. S. 

Army.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

a

9

10

11

12

IS

14

IS

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. HOT. Dec. Jan.

0

0

0

0

0

0

0

.5

44

516

649

206

59

30

15

9.5

45

36

2S

24

23

23

25

27

4S

261

99

57

37

28

72

Pet).

226

142

335

398

215

150

112

87

62

4S

39

31

28

21S

145

110

13S

135

95

76

57

50

29S

217

186

743

2,690

1,640

1,530

-

-

Month

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

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

toy.. .....................................

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

The perio d. .............................

Bar.

983

545

174

32

86

33

76

72

62

56

50

42

37

33

32

30

29

27

21

18

14

14

14

12

12

14

126

60

64

458

1,050

Apr.

286

199

125

87

70

54

44

43

42

31

30

26

26

£5

22

17

16

15

15

14

13

11

10

9

9

12

11

9.5

8

6.5

-

Seoondf dot-days

2,364.0

10,201

4^276

1,286

65.7

go ,3

267 *5

J.OO i an QW

111.5

-

Hay

6.5

6

5.5

4.5

4.5

4.2

4.0

3.8

3.5

3.5

3.0

3.0

2.2

2.0

2.0

1.9

l.S

1.8

l.S

1.8

1.8

l.S

1.8

1.8

1.8

1.8

1.8

1.6

1.6

1.3

1.3

MttTHnnim

649

2,690

1,050

286

6.5

20

2.9

7

5

-

June

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

16

20

18

14

-

July

12

19

16

14

12

12

12

12

11

11

9

9

e.5

S.5

8.5

e

8

7.5

7

6.5

6

5.5

5.5

4.5

4.5

4.5

5

5

5

5

5.5

M1 ffll wwi

0

28

12

6.5

1.3

0

4.5

4.2

2.8

-

Aug.

5.5

5.5

5.5

6

6

6

6

6.5

5.5

4.5

4.5

5

5

4.5

5.5

7

6.5

6.5

5.5

4.5

4.2

4.2

6

S

5.5

5.5

5.5

5.5

5

5

5

Mean

76»3

352

13S

An Q *<& y

2.76

2.74

8 »63 5.45

3.72

-

Sept.

5

4.0

4-0

4.5

4.5

4.5

4.5

4.2

4.2

4.2

4.2

4.0

4.0

4.0

4.0

3.8

3.S

3.8

3.5

3.0

3.0

3.0

3.0

3.0

3.2

3.2

3.0

2.8

2.8

2.8

-

Run-off In 

acre-feet

4,690

20,230

8 480

2^550

170

165

531

336

221

37,370

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
140 PAJARO RIVER BASIN

Uvas Creek near Morgan Hill, Calif.

Location.- Water-stage recorder and concrete control, lat. 37 0 04'00", long. ISl^l'SO", 

in Las Uvas grant, 500 feet upstream from Uvas Dam, 0.6 mile downstream from Eastman 

Canyon, and 4.8 miles southwest of Morgan Hill, Santa Clara County. Altitude of gage, 

about 390 feet (from topographic map).

Drainage area.- 30.2 square miles.

Records available.- December 1930 to September 1940.

Extremes.- Maximum discharge during year, 5,720 second-feet Feb. 27 (gage height, 11.37 

feet); no flow Oct. 1 to Dec. 3.

1930-40: 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 times in each 

of years 1931-34, 1939 and 1940.

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

poor. No regulation or large diversion above station. Water diverted at Uvas Dam 

for municipal supply of Gilroy.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

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. Hov. Dec.

0

0

0

.3

.4

.4

.4

.3

3.0

10

5

1.4

1.2

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.1

1.0

1.2

1.2

1.1

1.1

1.2

1.2

1.1

1.1

Jan.

4.4

197

32

322

49

60

123

650

750

400

300

150

100

80

60

50

45

40

35

30

30

30

25

25

200

700

250

152

113

91

128

Feb.

236

139

338

224

166

135

113

93

81

71

61

54

63

171

97

79

204

127

106

93

81

86

125

110

174

454

3,390

1,460

810

_

-

Month

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

Fell

Mar

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

Kay.. .....................................

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

Water year 1939-40. .....................

Mar.

422

294

231

183

150

130

112

101

91

86

76

71

64

58

55

55

50

46

44

40

38

35

33

33

32

52

82

53

202

1,340

691

Apr.

330

226

174

143

120

105

91

85

75

68

61

55

50

48

45

41

38

37

34

33

33

33

32

31

34

33

30

30

26

25

Secondfoot-days

0

0

41.9

2,211.6

5,226.4

9,341 

4,950

2,166

439.0

164.6

55.0

21.0

15.7

22,420.6

May

22

21

21

26

21

19

19

18

17

15

15

14

14

13

13

13

12

12

12

11

11

10

10

10

9.5

9

9.5

9.5

9.5

11

12

MaxtaM

0

0

10

380

750

3,390 

1,340

330

26

10

3.1

3.8

.8

3,390

June

10

9

8.5

8.5

8

8

7

7

7

6.5

6

5.5

5.5

4.7

4.4

4.7

4.4

5

5

4.7

4.2

4.0

4.0

3.8

3.8

3.6

3.1

2.9

2.9

2.9

July

2.9

2.9

2.3

2.0

1.3

1.7

1.7

1.5

1.5

1.4

1.4

1.4

1.5

1.4

1.4

1.5

1.7

1.8

1.5

1.4

1.2

1.2

1.1

2.5

3.1

2.9

2.7

2.3

1.2

1.1

1.0

m^tfli^wi

0

0

0

0

4.4

54 

32

25

9

2 9

ilo

.4

.4

0

Aug.

1.0

.9

.8

1.8

3.8

1.0

.9

.8

.8

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

Mean

0

0

1.35

6.06

169

322 

160

72.2

14.2

5.49

1.77

.68

.52

61.3

Sept.

0.4

.4

.4

.4

.5

.6

.8

.8

.8

.6

.6

.6

.5

.5

.6

.5

.5

.5

.6

.5

.5

.4

.5

.4

.4

.4

.5

.5

.5

.5

-

Rim-off in 

acre-feet

0

0

83

4,380

10,370

18,530 

9,820

4,300

871

326

109

42

31

44,480

Peak discharge.- Jan. 4 (3 a.m.) 1,740 sec.-ft.; Feb. 27 (2:30 p.m.) 5,720 sec.-ft.} Mar. 3O 

(10 a.m.J 2,380 sec.-ft.

Note.- Ho gage-height record Dec. 5-11 and Jan. 8-27] discharge computed on basis of records 

for Los Qatos Creek at Los Gatos.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
PAJARO RIVER BASIN 141

Tres Plnos Creek near Tres Pinos, Calif.

Location.- Wire-weight gage, lat. 36°45'55", long. 121°17'45", in Santa Ana y Quien Sabe 

land grant, 2.2 miles southeast of settlement of Tres Pinos, San Benito County, and 

about 4i miles upstream from mouth. Altitude of gage, about 530 feet (from topographic 

map).

Drainage area.- 210 square miles (Corps of Engineers, U. S. Army). 

Records available.- December 1939 to September 1940.

Extremes.- Ifeximum discharge during period, 4,480 second-feet Feb. 25 (gage height, 6.75 

feet); no flow Aug. 30-31 and parts of other days in August and September.

Flood of February 1938 reached a stage of 8.7 feet, gage datum, from floodmarks.

Remarks.- Records poor. Gage read twice daily with extra readings during storm flows. 

Diversion above station for irrigation.

Cooperation.- Results of 22 discharge measurements furnished by Corps of Engineers, U. S.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

£4

25

26

27

28

29

30

31

Oct. Her. Dec.

_

-

-

.

-

_

-

_

.

-

_

-

-

-

-

_

_

_

0.4

.3

.2

.5

1.0

.9

.3

.9

.6

.5

.4

.2

.1

Jan.

0.1

1.0

1.3

1.6

1.2

1.3

1.1

1.0

1.0

20

1,400

424

463

16

3.6

3.1

£.9

2.6

2.4

2.3

2.2

2.2

2.2

2.3

2.3

2.3

2.3

2.2

2.1

2.2

2.9

Feb.

190

126

147

110

59

34

38

26

19

16

13

12

10

174

14S

42

41

42

26

20

17

18

72

41

335

746

717

442

566

_

-

Month

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

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

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

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

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

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

The perlod. .............................

Mar.

241

125

87

65

51

48

35

34

20

19

22

17

16

15

14

13

12

U

9

6

6.5

6

5

6

5.5

6

50

38

35

47

320

Apr.

138

84

53

47

36

29

23

20

13

14

13

11

10

3

7.5

7

5

5

5

4.5

4.5

4.5

4.5

4.0

6

10

3

4.5

5

4.5

Seoondfoot-days

_

_

6.3

-

2 379.7

4)767'

1,385.0 

59S.5

99.0

65.3

45.1

29*2

53 '.9

-

May

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4-0

4.5

4-0

4.5

4.5

3.6

2.5

1.3

2.2

2.4

1.6

2.2

2.8

1.5

1.2

1.0

1.1

1.7

3.2

2.8

3.6

3.6

3.6

3.6

MgyliHiim

_

.

1.0

-

1 '835 400

133

4.5

3-6

1*7 g ^g

Z.I

-

June

3.2

3.6

3.6

3.2

3.6

2.5

1.9

1.9

3.2

1.9

1.9

2.2

2.2

2.2

1.6

2.9

£.0

£.0

2.1

1.7

1.5

.3

2.7

1.0

1.0

2.0

1.5

1.3

1.9

2.2

July

1.9

2.2

1.9

1.7

1.8

l.S

1.9

1.9

1.9

1.0

1.6

.9

1.5

1.7

1.4

1.7

1.5

1.4

.5

.9

1.5

1.0

.6

.9

.9

1.2

1.7

1.7

1.7

1.6

1.2

Nlnlirfl !

_

.

0.1

_

.1

10

5

4.0

1.0

 3

.5

0

.2

-

Aug.

1.3

1.6

1.5

1.2

1-0

.S

.7

.7

.8

.7

1.0

1.6

1.6

1.0

1.3

1.7

1.7

1.7

1.0

.1

1.4

.8

.2

.1

1.0

.6

.5

1.0

.6

0

0

Mean

_

_

0.52

.

76.8

164

44 V

20.0

3*1.9

2* IS

1.45

.94

1.80

-

Sept.

0.6

.S

.S

.4

.6

.5

1.4

1.9

2.1

2.1

2.4

2.1

2.1

2.4

2.2

2.4

£.4

2.4

2.6

2.2

2.7

2.4

1.4

1.4

1.4

1.9

2.4

2.7

2.4

2.1

Run-off in 

acre-feet

_

_

13

_

4,720

9,460

2. 760

1 'l96190

130

S9

S3

107

18,710

9-232 February 1936

OTITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
142 PAJARO RIVER BASIN 

San Benlto River near Willow Creek School, Calif.

Location.- Water-stage recorder, lat. 36°36'55", long. 121°12'50", In SWi sec. 21, T. 15 

S., R. 7 E., If miles downstream from Willow Creek, If miles northwest of Willow Creek 

School, and 10 miles northwest of San Benlto. Altitude of gage, about 900 feet (from 

topographic map).

Drainage area.- 250 square miles (Corps of Engineers, U. S. Army). 

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge during period, 1,750 second-feet Feb. 25 (gage height, 4.45 

feet); minimum, 1.2 second-feet Aug. 10-13, 20, 21.

Highest stage known, about 9.0 feet (present gage datum) from floodmarks made 

during 1937-38.

Remarks.- Records fair. Small diversions above station for Irrigation..

Cooperation.- Results of nine discharge measurements furnished by Corps of Engineers,U. S.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

S 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

81 

28 

23 

84 

85

26 

27 

88 

89 

30 

31

Oct. Nov. Dec.

1.8 

2.0

2.3 

2.0 

2.0 

2.0 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.9 

2.5 

2.7 

2.1

2.0 

1.9 

1.9 

1.9 

1.9 

1.9

Jan.

2.5 

4.0 

3.2 

5.5 

3.8

8 

13 

124 

81 

300

431 

202 

114 

51 

30

22

16 

13 

11 

9

e

7 

7 

7 

10

20 

41 

27 

20 

16 

73

Feb.

275 

144 

303 

315 

128

80 

62 

50 

41 

34

30 

27 

25 

56 

91

52 

42 

39 

33 

29

26 

29 

366 

130 

220

728 

673 

908 

882

Month

Dot

HM 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

T

ember 9- 

alendar

31 ......----.-.----------------

year

ust...................

he perio

Mar.

414 

259 

195 

154 

126

108 

98 

86 

63 

77

69 

63 

57 

53 

51

49 

44 

42 

40 

49

43 

36 

32 

31 

31

32 

51 

49 

41 

54 

281

Apr.

220 

110 

74 

62 

60

56 

48 

44 

42 

38

36 

34 

31 

31 

31

31 

30 

28 

27 

26

24 

24 

24 

23 

23

34 

32 

27 

23 

20

Secondfoot-days

46.1

-

1,680.0 

5,818 

2,798 

1,313 

313.9 

102.9 

57-5 

49.3 

51.6

-

May

19 

19 

18 

18 

17

16 

15 

14 

13 

12

12 

11 

10 

9 

8.5

8.5 

8-5 

8 

7 

7

6.5 

6 

6 

6 

6

5.5 

5.5 

5.5 

5.5 

4.9 

6

Maximum

2.7

-

431 

908 

414 

220 

19 

5.5 

2.4 

1.7 

1.8

-

June

5.5 

4.9 

4.4 

4.4 

4.4

4.0

3.7 

3.7

3.7 

3.3 

3.3 

3.3 

3.3

3.3 

3.3 

2.8 

3.3 

2.8

2.8 

2.6 

2.8 

2.8 

2.8

3.7 

2.4 

2.2 

2.4 

2.8

July

2.4 

2.4 

2.2 

2.0 

2.0

1.9

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.9

1.9 

1.9 

1.9 

1.9 

1.8

1.8 

1.7 

1.7 

1.6 

1.6

1.6 

1.7 

1.8 

1.8

1.8 

1.7

Minimum

1.8

-

2.5 

25 

31 

20 

4.9 

2.2 

1.6 

1.3 

1.6

-

Aug.

1.7 

1.7 

1.7 

1.7 

1.7

1.7

1.6 

1.5

1.3 

1.3 

1.5 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.5

1.5 

1.5 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6 

1.6

Mean

2.00

-

54.2 

201 

90.3 

43.8 

10.1 

3.43 

1.85 

1.59 

1.72

-

Sept.

1.6 

1.6 

1.6 

1.6 

1.7

1.7

1.6 

1.7

1.7 

1.7 

1.7 

1.7 

1.7

1.8 

1.8 

1.8 

1.8 

1.7

1.7 

1.7 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.7

Run-off in 

acre-feet

91

-

3,330 

11,540 

5,550 

2,600 

623 

204 

114 

98 

102

24,250

Peak discharge.- Feb. 23 (6s30 a.m.) 1,440 sec.-ft.; Feb. 25 (12 p.m.) 1,750 sec.-ft.; Feb. 27 

(7l30 p.m.) 1,49O sec.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
SAN LOREN20 RIVER BASIN 

San Lorenzo River at Big Trees, Calif.

143

Location.- Water-stage recorder, lat. 37°01'40% long. 1220 03'30n , in Canada del Rincon 

grant, half a mile south of Big Trees, Santa Cruz County, 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.

Records available.- April 1937 to September 1940.

Extremes.- Maximum discharge during year, 24,000 second-feet Feb. 27 (gage height, 21.1 

feet, from floodmarks); minimum, 9.5 second-feet Oct. 15.

1937-40: Maximum discharge, that of Feb. 27, 1940, from rating curve extended 

above 5,000 second-feet on basis of slope-area studies and logarithmic plotting; 

minimum, 0.8 second-foot (regulated) June 25, 1939.

Remarks.- Records good except for period of fragmentary gage-height record, which are 

fair. Many small diversions above station for domestic supply.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

81

22

es

24

25

26

27

28

29

SO

31

Oct.

11

10

10

10

10

12

15

15

14

12

12

12

11

11

11

12

12

11

11

12

11

10

11

10

12

12

13

13

12

11

11

HOT.

12

10

10

10

10

11

12

12

12

12

12

13

13

13

13

13

12

13

13

13

13

13

13

13

19

19

15

14

13

13

-

Dec.

13

13

13

13

13

13

13

13

14

24

46

21

16

14

13

13

13

13

12

12

12

12

16

17

15

14

14

14

14

14

16

Jan.

193

555

142

596

202

96

392

1,030

97S

1,240

1,100

420

247

ISO

146

122

108

98

90

84

79

76

72

71

1,540

2,900

731

428

310

249

220

Feb.

351

2S9

1,330

652

483

385

318

266

231

209

190

173

1S2

552

360

276

985

662

414

332

284

276

26&

240

824

1,850

f 13, 700

f6,430

2,390

_

-

Month

Calendar year 1939. .....................

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

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

Mav ....

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

Water year 1939-4 a.....................

Mar.

1,250

SS5

694

573

495

429

3S2

352

315

2S9

266

247

229

216

205

205

192

ISO

171

164

157

150

142

139

139

211

390

295

916

7,580

2,490

Apr.

1,140

787

649

555

483

435

394

368

335

308

284

271

249

238

231

216

205

196

186

180

173

169

164

157

182

165

152

144

141

134

-

Seoondfoot-days

360

384

473

10,433.0

14,695

34,370

20,348

9,291

2,857

1,627

1,027

689

651

87,272

May

130

125

121

12S

115

113

103

106

101

99

94

93

91

89

S6

86

85

83

80

80

80

79

79

77

70

68

69

74

74

89

85

Mn *K"i,nftvn

15

19

46

532

2,900

13,700

7,580

1,140

130

76

40

28

26

13,700

June

76

71

69

66

65

64

65

63

60

61

59

59

50

53

53

54

54

54

50

50

44

44

46

43

44

43

42

42

42

41

-

July

40

39

37

36

34

34

35

34

33

34

34

34

30

33

32

36

36

37

34

30

36

32

32

32

30

26

28

30

31

30

28

Minimum

10

10

12

7.5

71

173

139

134

68

41

26

18

18

10

Aug.

28

26

26

24

25

25

27

24

23

22

21

21

21

18

19

21

21

21

19

20

19

20

20

22

23

25

23

22

21

21*

21

Bean

11.6

12.8

15.3

28.6

474

1,202

656

310

92.2

54.2

33.1

22.2

21.7

238

Sept.

21

21

20

19

21

23

24

23

23

22

22

22

23

23

23

23

23

23

23

26

26

23

20

20

20

19

19

19

19

18

-

Run-off in 

acre-feet

714

762

938

20,700

29,150

69,160

40,360

18,430

5,670

3,230

2,040

1,370

1,290

173,100

Peak discharge.- Jan. 10 (9 p.m.) 2,240 sec.-ft.; Jan. 25 (12 p.m.) 6,380 sec.-ft.; Feb. 3 

(11:30 a.m.) 2,790 sec.-ft.; Feb. 17 (9 a.m.) 2,010 sec.-ft.; Feb. 27 (2s30 p.m.) 84,000 sec.-ft.; 

Mar. 30 (9 a.m.) 12,200 sec.-ft.

f Fragmentary gage-height record; discharge computed from graph based on partial record and 

floodmark.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
144 SCOTT CREEK BASIN

Scott Creek near Davenport, Calif.

Location.- Water-stage recorder, lat. 37°03'35", long. 122°13'40", in Agua Puerca y Las 

Trancas land grant, about 1,000 feet downstream from mouth of Little Creek and 3& 

miles northwest (revised) of Davenport, Santa Cruz County. Altitude of gage, about 50 

feet (from topographic map).

Drainage area.- 27.6 square miles.

Records available.- February 1939 to September 1940.

Extremes.- Maximum discharge during year, 7,550 second-feet Feb. 27 (gage height, 12.96 

reet), from rating curve extended above 1,400 second-feet by logarithmic plotting; 

minimum, 0.2 second-foot (regulated) several days in October.

1939-40: Maximum discharge, that of Feb. 27, 1940; minimum, that in October 1939.

Remarks.- Records good except those above 1,500 second-feet, which are fair, 

latea by power plant- upstream.

Flow reguDischarge, in second-feet, water Tear October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.5 

.6 

.6 

.8 

.7

.8 

.9 

.6 

.5 

.3

.6 

.5 

.5 

.6 

.5

.3 

.4 

.3 

.5 

.5

.6 

.4

.4

1.0 

.8

.7 

.8 

.7 

.4 

.5 

.6

HOT.

0.8 

.7 

.7 

.8 

.5

.8 

.8 

.7 

.8 

.8

.8 

.7 

.7 

.7 

.8

.8 

.7 

.7 

.8 

.8

.8 

.7 

.8 

.8 

1.2

1.4 

1.3 

1.2 

l.S 

1.2

Dec.

1.0 

l.S 

1.2 

2.1 

2.1

2.0 

2.1 

S.3 

3.0 

S.5

4.6 

4.2 

3.9 

1.4 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.4 

1.4 

1.4 

1.6 

1.6

1.5 

1.4 

1.5 

1.4 

1.5 

1.6

Jan.

41 

130 

42 

167 

43

31 

34 

132 

144 

265

312 

155 

110 

a90 

a75

a65 

a60 

a55 

a50 

a45

a40 

a40 

a35 

a35 

al50

a700 

250 

17S 

131 

107 

94

Feb.

107 

105 

357 

S36 

177

153 

137 

122 

110 

101

92 

84 

84 

179 

141

118 

164 

147 

123 

110

103 

98 

94 

96 

386

696 

3,020 

1,160 

77S

Month

Dot 

Hov 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

«

alendar year

ater year 1939-4

Mar.

476 

384 

338 

274 

230

196 

167 

162 

157 

155

153 

148 

143 

136 

129

184 

116 

105 

97 

87

79 

69 

60 

56 

54

78 

157 

110 

S79 

2,190 

599

Apr.

338 

294 

276 

S56 

23 S

S19 

208 

197 

182 

166

153 

140 

131 

117 

10S

90 

82 

77 

73 

69

67 

65 

61 

59 

62

58 

55 

53 

5S 

49

Seoondfoot-days

17.9 

S5.5 

57.7

_

3,800 

9,272 

7,508 

3,983 

945 

480 

257.0 

1S1.0 

7S.3

26,539.4

May

47 

46 

44 

45 

42

41 

38 

37 

34 

3S

30 

30 

29 

28 

28

28 

28 

28 

26 

S5

24 

24 

S3 

S3 

2S

21 

S2 

22 

S2 

28 

28

MaxJjBuni

1.0 

1.4 

4.6

_

700 

3,020 

2,190 

338 

47 

25 

11 

4.9 

3.3

3,020

June

25 

21 

SI 

SO 

20

20 

19 

18 

17 

18

17 

17 

17 

16 

16

14 

16 

15 

15 

15

14 

13 

12 

13 

13

13 

13 

11 

11 

10

July

11 

10 

alO 

alO 

alO

alO 

a9.5 

a9.5 

a9.5 

a9.5

a9.5 

a9 

a9 

a9 

a9

a8.5 

8.5 

8.5 

8.5 

8.5

7 

7 

7 

7 

6.5

6 

6 

5 

6.5 

5 

7

Minimum

0.3 

.5 

1.0

-

31 

84 

54 

49 

SI 

10 

5 

2.9 

1.6

.3

Aug.

4.9 

4.6 

4.9 

4.3 

4.9

4.3 

4.3 

4.3

3.7 

3.7

3.7 

4.3 

4.0 

4.0 

4.3

4.9 

3.7 

3.5 

3.5 

3.7

4.0 

4.0 

3.5 

3.5 

3.5

3.7 

3.3 

3.1 

3.1 

2.9 

S.9

Mean

0.58 

.85 

1.86

-

123 

320 

242 

133 

30.5 

16.0 

8.29 

3.90 

2.41

72.5

Sept.

2.8 

2.8 

3.3 

2.8 

2.9

3.1 

3.3 

3.1 

2.9 

2.6

2.6 

2.8 

2.8 

2.2 

2.4

2.6 

2.8 

2.4 

2.2 

1.8

1.7 

1.7 

2.2 

1.8 

2.0

1.7 

2.0 

1.6 

1.6 

1.8

Run-off In 

acre-feet

36 

51 

114

-

7,540 

18,390 

14,890 

7,900 

1,870 

95 S 

510 

240 

143

52,640

Peak discharge.- Feb. 27 (2:30 p.m.) 7,550 sec.-ft.; Mar. 30 (5 p.m.) 3,760 sec.-ft.

a No gage-height record; discharge Interpolated or computed on basis of peak flow determination 

over a weir Jan. 25, discharge measurement Jan, 36, and records for station on San Lorenzo River at 

Big Trees,

9-232 February 1936

UNITED STATES DEPARTMENT OP THE IHTERIOR 

Geological Surrey
SAN FRANCISQUITO CREEK BASIN 145

San Francisquito Creek at Stanford University, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°25'20", long. 122°11'25", 

in Rinconada del Arroyo de San Francisquito grant, at golf course, three-quarters 

of a mile downstream from Los Trancos Creek, and 1.2 miles west of Stanford University 

post office, Santa Clara County. Altitude of gage, about 120 feet (from topographic 

map).

Drainage area.- 37.7 square miles.

Records available.- January 1931 to September 1940.

Extremes.- Maximum discharge during year, 3,100 second-feet Feb. 27 (gage height, 9.4 

feet); no flow for several months.

1931-40: Maximum discharge, that of Feb. 27, 1940; practically no flow for several 

months in each year.

Remarks.- Records good. There was a very small unmeasured discharge at times in August 

and September, owing to return flow from irrigation of golf course. Flow regulated 

by Searsville Lake and diversion to Los Trances and Lagunita canals.

Rating table, water year 1939-40 ge height, in feet, and discharge, in second-feet)

0.0 0.0 

.3

.8 

1.8

0.8 

1.0 

1.2 

1.4

12.V

22.2

35

51

70

2.5 

3.0 

3.5 

4.0

200

320

464

620

5.5 

6.0

1,210

1,430

1,655

1,880

7.5 2,120

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov. Dec. Jan.

0 

.2 

.2 

28 

.2

3.6 

16

58 

166 

178

167 

65 

38 

.9 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

151

339 

61 

20 

.6 

6.5 

12

Feb.

30 

26 

128 

85 

35

35 

14 

4.5 

.3 

9.5

12 

.3

14 

104 

53

14 

121 

80 

26 

.4

13 

55 

55 

9 

125

384 

2,120 

1,000 

832

Month

Oct 

NOD 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul

Aug

Sep 

«

uary'

il................ .....................

ate* year 1939-4

Mar.

248 

160 

116 

77 

60

63 

48 

32 

40 

42

30 

28 

23 

24 

22

22 

19 

18 

17

14

9.5 

3.5 

1.3 

2.4 

4.2

89 

178 

87 

212 

1,570 

400

Apr.

187 

127 

100 

89 

53

28 

41 

41 

44 

39

34 

27 

24 

22 

20

16 

10 

8.5 

9.5 

10

14 

7 

8.5 

8 

10

15 

12 

11 

8 

2.7

Seoondf cot-days'

0 

0 

0

293.7

5,385.1 

3,659.9

19.4 

5.2 

2.3 

0 

0

11,411.4

May

1.4 

.7 

.6 

1.1 

2.6

3.0 

2.0 

.6 

.3 

.3

.3 

.3 

.3 

.2 

.3

.3 

.3 

.3

.4 

.4

.4 

.4 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.3 

.3

Maximum

0 

0 

0

73

339 

2,120 

1,570 

187 

3.0 

.3 

.1 

0 

0

2,120

June

0.3 

.3 

.3 

.2 

.2

.2 

.2 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

July

0.1

.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 

0

.1 

.1 .1

Minimum

0 

0 

0

0

0 

.3 

1.3 

2.7 

.2 

.1 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.80

42.4 

186 

118 

34. S 

.63 

.17 

.07 

0 

0

31.2

Sept.

Run-off in 

acre-feet

0 

0 

0

582

2,600 

10,680 

7,260 

2,040 

33 

10 

4.6 

0 

0

22,630

Peak discharge.- Feb. 27 (4 p.m.) 3,100 sec.-ft.; Feb. 29 (12:30 a.m.) 1,780 sec.-ft.; Bar. 3O 

(7:30 a.m.) 2,480 sec.-ft.
SAN FRANCISQUITO CREEK BASIN

San Francisqulto Creek at Palo Alto, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°27'10", long. 122°08'20", 

in Rancho de las Pulgas grant, 175 feet upstream from Nswell Avenue Bridge, in Palo 

Alto, Santa Clara County, and about 2 miles upstream from mouth. Altitude of gage, 

about 5 feet (f^om topographic map).

Drainage area.- 38.6 square miles.

Records available.- January 1931 to September 1940.

Extremes.- Maximum discharge during year, 3,100 second-feet Feb. 27 (gage height, 17.22 

feet); no flow for several months.

1931-40: Maximum discharge, that of Feb. 27, 1940; no flow for several months of 

each year.

Remarks.- Records good. Flow regulated by Searsville Lake and ctiversion into Los Trances 

and Lagunita canals.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet)

1.0 

1.4

0.0

1.3

6.9

14.5

28

2.4 

3.0 

4,0 

5.0 

6.0

178

282

396

7.0

8.0

9.0

10.0

11.0

864

1,060

1,280

12.0

13.0

14.5

1,520

1,790

2,230

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Hov. Dec. Jan.

0

0

0

18

.8

.6

4.2

52

176

161

187

64

36

5.5

0

0

0

0

0

0

0

0

0

0

114

360

60

24

.2

0

14

Feb.

28

18

127

82

37

30

11

5.5

0

0

14

.1

.2

109

55

19

116

83

33

.1

.8

50

58

7.5

120

320

2,220

983

314

_

-

Month

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

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

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

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

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

Water year 1939-40......................

Mar.

254

164

117

77

55

58

46

28

32

37

27

23

18

19

18

17

14

12 ' 13

9

7

1.5

.1

0

0

55

190

82

152

1,570

439

Apr.

207

136

107

92

60

23

38

35

42

35

31

24

20

17

15

12

6.5

5.5

5.5

6

10

3.5

4.9

4.7

4.2

10

8

7

5

4

-

Secondfoot -days

0

0

0

228.6

1 , 2VV.3

5,441.2

3,534.6

975 o'.2

0

0

0

0

11,228.3

May

Maximum

0

0

0

66

360

2,220

1,570

207

0

0

0

0

0

2,220

June July

Minimum

0

0

0

0

0

0

0

.4

0

0

0

0

0

0

Aug.

Mean

0

0

0

.63

41.2

188

114

32 .5

0

0

0

0

0

30.7

Sept.

Run-off in 

acre-feet

0

0

0

454

2,530

10,790

7,010

1,930

0

0

0

0

0

22,260

Peak discharge.- Feb. 27 (5:30 p.m.) 3,100 sec.-ft.; Feb. 29 (2:30'a.m.) 1,820 sec.-ft.; Mar. 30 

9:30 a.m.J 2,600 sec.-ft.
SAN FRANCISQUITO CREEK BASIN L* f 

Los Trancos Creek at Stanford University, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°24'35", long. 122°11'35", 

in El Corte de Madera grant, about 800 feet upstream from mouth and 1.6 miles southwest of Stanford University post office, Santa Clara County. Altitude of gage, about 

160 feet (from topographic map).

Drainage area.- 7.5 square miles.

Records available.- January 1931 to September 1940.

Extremes.- Maximum discharge during year, 647 second-feet Feb. 27 (gage height, 4.07 

feet) from rating curve extended above 320 second-feet by logarithmic plotting; no 

flow for several months.

1931-40: Maximum discharge, that of Feb. 27,- 1940; no flow for several months 

in each year.

Remarks.- Records fair. Water diverted above station by Los Trancos canal; during some 

years part is returned to creek above station, through Felt Lake spillway.

Discharge, in second-feet, water year October 1939 to September 194O

Day

1

S

3

4

S

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. HOT. Dec. Jan.

0.1

.1

.1

.3

.1

.1

.3

.5

1.0

11

5

.7

.3

.2

.1

.1

0

0

0

0

0

0

a

0

3.1

5

1.1

.6

.4

.3

.5

Feb.

3.8

1.2

6

2.4

1.2

1.0

.7

.5

.4

.3

.3

.3

5

2.4

.8

.5

8

1.6

1.2

1.0

.9

1.5

2.8

3.8

21

80

368

272

199

-

Month

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

Jan 

Fet 

Mai

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

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

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

Water year 1939-4 D ......................

Mar.

66

41

30

23

20

17

15

14

13

12

11

11

10

10

9.5

9

9

8.5

8

7.5

7.5

5.5

.9

.5

.4

6.5

23

12

25

244

94

Apr.

101

27

22

18

15

14

13

12

11

11

10

9.5

9

9.5

9.5

6.5

1.3

1.2

2.6

3.9

6'. 5

5,5

5

4.8

5

5.5

4.8

4.6

2.8

.8

Secondfoot-days

0

0

0

30.5

31.0 

987.6 

763.8

352.3

13.3

2.1

0

0

0

2,150-1

May

0.6

.4

.5

.6

.5

.5

.9

1.1

1.0

.9

.6

.8

.9

.6

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

Maxii&uffl

O

0

0

3.3

11 

368 

244

101

1.1

.1

0

0

0

368

June

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

o

.1

0

0

0

0

0

-

July

Minimum

0

0

0

0

0 

.3

.4

.8

.1

0

0

0

0

0

Aug.

Mean

0

O

0

.08

1.00 

34.1 

24.6

11.7

.43

.07

0

0

0

5.87

Sept.

Run-off in 

acre-feet

0

0

0

60

61 

1,960 

1,510

699

26

4.2

0

0

0

4,260

Peak discharge.- Feb. 27 (2:30 p.m.) 647 sec.-ft.; Mar. 30 (4:30 p.m.) 370 sec.-ft.
148 SAN FRANCISQUITO CREEK BASIN

Los Trancos canal near Stanford University, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°23'20n , long. 122°11'10", 

in El Corte de Madera grant, half a mile downstream from intake and 3 miles southwest of Stanford University post office, Santa Clara County. When Felt Lake is full, 

recorder is moved to Cippoletti weir at canal intake. Altitude of gage, about 360 

feet (from topographic map).

Records available.- October 1931 to September 1940.

Extremes.- Maximum daily discharge during year, 42-second-feet Jan. 10; no flow at times. 

 1951-40: Maximum daily discharge, that of Jan. 10, 1940; no flow at times in each 

year.

Remarks.- Records excellent except those for period of no gage-height record, which are 

fair. Canal diverts water from Los Trancos Creek 2 miles above mouth and conveys it 

to Fell; Lake, an irrigation reservoir on Stanford University campus.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. HOT. 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 

0 

0 

0 

0

Jan.

0.2 

.4 

3.1 

6.5 

.5

.7 

8.5 

16 

26 

42

32 

10 

5.5 

3.6 

2.6

2.1

1.8 

1.6

1.4 

1.2

1.2 

1.1 

1.0 

1.0 

12

29 

8.5 

5.5 

3.3 

2.6 

2.5

Feb.

8.5 

4.9 

16 

8.5 

6

5.5 

4.5 

3.7 

3.0 

2.8

2.5 

2.3 

2.7 

14 

6

4.2 

20 

9

' aV

0

0 

0 

0

Month

Oot 

Hov

Dec

C

Jan 

Fel) 

Mar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

W

ua

11.....................................

ater year 1939-4

Mar.

0 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

1.6 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0

0 

- 0 

0

0 

0 

0 

0 

0

3.0 

5 

4.9 

4.8 

2.0

0 

0 

0 

0 

0

0 

0 

0 

2.0 

3.4

Secondfoot-days

0 

0 

.3

168.7

233.4 

173.1 

1.6 

25.1 

69.9 

28.6 

16.3 

10.2 

6.9

565.4

May

3.4 

3.2 

3.2 

3.4 

3.0

3.0 

2.8 

2.6 

2.6 

2.6

2.5 

2.4 

2.4 

2.3 

2.3

2.2 

2.2 

2.2 

2.2 

2.0

1.8 

1.7 

1.7 

1.7 

1.6

1.5 

1.6 

1.6 

1.4 

1-4 

1.4

MaTc^ntvpp

0 

0 

.2

17

42 

20 

1.6 

5 

3.4 

1.6 

.9 

.6 

.5

42

June

.4 

.3 

.3 

.2 

.1

1.0 

1.0 

.9 

.9 

.S

.8 

.8 

.8 

.7 

.7

.7 

.6 

.6 

.6 

.6

.6 

.6 

.6

.8 

1.2

1.1 

1.4 

1.6 

1.6

1.3

July

0.9 

.6 

.S 

.7 

.6

.5 

.5 

.8 

.5 

.5

.5 

.5 

.5 

.5

.&

.5 

.5 

.5 

.5 

.5

.5 

.8 

.4 

.4

.4

.3 

.3 

.3 

.6 

.3 

.3

minium

0 

0 

0

0

.2 

0 

0 

0 

1 4 

6 

3 

3 

1

0

Aug.

0.3 

.3 

.3 

,3 

.6

.3 

.3 

.3 

.3 

.3

.3 

.6 

.3 

.3 

.3

.3 

.3 

.3 

.6 

.3

.3 

.3 

.3 

.5 

.3

.3 

.3 

.3 

.3 

.3 

.3

Mean

0 

0 

.01

.46

7.53 

5.97 

.05 

.84 

2.25 

.95 

.53 

.33 

.23

1.54

Sept.

0.3 

.3 

.3 

.3 

.3

.3 

.3

.3 

.5 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1

.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Run-off in 

acre-feet

0 

0 

.6

335

463 

343 

3.2 

50 

139 

57 

32 

20 

14

1,120

a No gage-height record; discharge computed on basis of increase in contents in Pelt Lake.
SAN FRANCISQUITO CREEK BASIN 149

Lagunlta canal at Stanford University, Calif.

Location.- Water-stage recorder, lat. 37°25'05", long. 122°11'15", in Rinconada del

Arroyo de San Francisquito grant, 500 feet downstream from intake, at Stanford University, Santa Clara County. Altitude of gage, about 150 feet (from topographic map).

Records available.- January 1931 to September 1940.

Extremes.- Maximum daily discharge during year, 20 second-feet Jan. 4, 8 and Mar. 8; no 

flow for several months.

1931-40: Maximum daily discharge, 23 second-feet Feb. 13, 1936; no flow for 

several months of each year.

Remarks.- Records good except those for periods of very low flow, which are fair. Canal 

diverts water from San Francisquito Creek below Los Trancos Creek, to supply the 

Lagunita, an irrigation reservoir on Stanford University campus.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

S 

9 

10

11 

12 

IS 

14 

IS

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. HOT. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

.4

.8 

.4 

.3 

.3 

.5

.3 

.3 

.4 

.3

.3

.4 

.3 

.4 

.4 

.3

.4 

.4 

.4 

.4 

.4 

.5

Jan.

1.0 

1.7 

1.1 

20 

3.9

11 

11 

20 

18 

18

17 

16 

17 

6.5 

3.3

2.8 

2.1 

2.3 

1.6 

1.4

1.3 

1.3 

1.6 

1.8 

13

19 

17 

15 

11 

9 

12

Feb.

10 

12 

.3 

.3 

1.8

0 

0 

4.6 

8.5 

15

14 

3.8 

2.0 

0 

9

14 

.8 

0 

11 

14

4.6 

0 

0 

5.5

0

.2 

7 

1.2 

.6

Month

Oot 

Ho?

Dec

G

Jan 

Pet 

Mar 

Apr 

May 

Jus 

Jul

AUg

Sep 

«

alendar year 1939......................

ater year 1939-4

Mar.

0.5 

.4 

0 

0 

0

0 

S.5 

20 

6.5

0

7 

5.5 

5 

5 

4.9

5.5 

7 

6 

5.5 

5

5 

4.9 

4.1 

4.1 

4.5

3.7 

0 

0 

0 

4.9 

0

Apr.

0 

0 

0 

0 

6

14 

12 

6

1.9 

1.7

1.6 

4.1 

5.5 

5 

5.5

5.5 

6 

6 

6 

6

6 

4.9 

4.2 

4.3 

4.3

4.8 

5.5 

5.5 

6.5 

7

Secondfoot-days

0 

0 

8.6

277.5

277.7 

140.2 

123.5 

145.8 

94.1 

4.1 

0 

0 

0

794.0

May

6.5 

6.5 

6.5 

6 

5.5

5 

5.5 

5.5

4.8 

4.3

3.4 

3.7 

3.2 

2.2 

3.6

3.2 

2.0 

1.9 

1.7 

1.8

1.9 

1.3 

1.4 

1.0 

1.1

1.1 

1.0 

.8 

.6 

.6 

.5

Maximum

0 

0 

.8

15

20 

15 

20 

14 

6.5 

.6 

0 

0 

0

20

June

0.6 

.5 

.5

.4 

.4

.2 

.2 

.2 

.2 

.2

.2

.1 

.1 

.1 

.1

.1

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

0 

0

0

1.0 

0 

0 

0 

.5 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.28

.76

8.96 

4.83 

3.98 

4.86 

3.04 

.14 

0 

0 

0

2.17

Sept.

Run-off in 

acre-feet

0 

0 

17

551

551 

278 

245 

289 

187 

8.1 

0 

0 

0

1,580
150 STEVENS CREEK BASIN

Stevens Creek near Cupertino, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°18 I 20", long. 122°04'25", 

in SRi sec. 22, T. 78., 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 nap).

Drainage area.- 18.1 square miles.

Records available.- January 1930 to September 1940.

Average discharge.- 10 years, 10.6 second-feet.

Extremes.- Maximum discharge during year, 2,390 second-feet Feb. 28 (gage height, 7.05 

feet; from rating curve extended above 350 second-feet; practically no flow Oct. 1 to 

Dec. 9.

1930-40: Maximum discharge, that of Feb. 28, 1940; no flow at times each year 

except 1938.

Remarks.- Records good. Storage in Stevens Creek Reservoir (capacity 4,000 acre-feet) 

above station began in 1936; water released during summer.

Rating table, water year 1939-40 (gage height, Iti feet, and discharge, in second-feet)

1.2

1.3

1.4

1.5

1.6

2.1 

4.2 

7.2

1.7 

l.S 

2.0 

2.2 

2.4

11,6

17

31.5

51

76

2.6 

2.8 

3.0 

3.3 

3.6

117

165

220

308

406

3.9 

4.2 

4.5 

4.S

510

630

770

920

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

50 

31

Oct. HOT. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

.3

.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Jan.

0.2 

7.5 

12 

22 

22

14 

13 

37 

49 

42

46 

42 

40 

38 

32

28 

21 

14 

11 

12

11 

9 

8.5 

8.5 

9

25 

41 

46 

43 

39 

32

Feb.

39 

32 

33 

30 

2S

21 

22 

20 

20 

13

11 

13 

13 

16 

13

13 

16 

15

14 

14

14 

14 

14

14 

15

23 

49 

876 

467

Month

Oot 

HOD 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

VI

alendar year 193 3 ......................

11.....................................

ater year 1939-4

Mar.

206 

145 

111 

87 

74

66 

5S 

49 

48 

48

41 

38 

3S 

34 

33

32 

32 

29 

29 

28

24 

24 

24 

24 

22

28 

50 

31 

62 

664 

252

Apr.

13S 

96 

80 

54 

58

53 

50 

4S 

44 

41

39 

36 

32 

32 

32

30 

29 

28 

27 

24

24 

24 

23 

22 

24

22 

21 

20 

19 

18

Seoondfoot-days

0 

0 

4.4

911.4

774.7 

1,882 

2,431 

1,188 

382 

277 

383.5 

340.3 

458.2

8,121.1

May

17 

18 

17 

18 

16

15 

14 

14 

14 

13

13 

13

12 

12 

12

12 

10 

9 

9.5 

9

11 

12 

12 

10 

10

10 

9.5 

9.5 

9.5 

10 

11

Maximum

0 

0 

.3

34

49 

876 

664 

138 

18 

13 

20 

20 

20

876

June

11 

11 

12 

12 

12

12 

12 

12 

12 

13

13 

13 

13 

13 

13

13 

12 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5 

5

5 

5 

5 

5 

5

July

5.5 

7 

9 

6.5 

8

11 

11 

11 

9 

8

8 

8 

8 

S 

8

8 

7.5 

10 

14 

14

14 

14 

16 

20 

20

20 

20 

20 

20 

20 

20

Minimum

0 

0 

0

0

.2 

11 

22 

18 

9 

5 

5.5 

1.3 

1.6

0

Aug.

20 

20 

15 

6

6

14 

2.0 

1.3 

1.3 

11

20 

20 

20 

18 

17

17 

17 

17 

17 

17

16 

15

15 

7.5 

1.6

1.4 

1.4 

1.4 

1.4 

1.4 

1.6

Mean

0 

0 

.14

2.50

25.0 

64.9 

78.4 

39.6 

12.3 

9.23 

12.4 

11.0 

15.3

22.2

Sept.

1.6 

1.6 

12 

20 

20

17 

16 

16 

16

16

16 

17 

17 

16 

16

16

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16

Run-off in 

acre-feet

0 

0

8.7

1,810

1,540 

3,730 

4,820 

2,360 

758 

549 

761 

675 

909

16,110

Peak discharge.- Feb. 28 {7 a.m.) 2,390 sec.-ft.; Mar. (9:30 a.m.) 1,400 sec.-ft.
GUADALUPE CREEK BASIN 

Guadalupe Creek at Guadalupe, Calif.

151

Location.- Water-stage recorder and concrete control, lat. 37°13'05", long. 121°54'35", 

In SWi sec. 19, T. 8 S., R. IE., 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 1940.

Average discharge.- 10 years, 10.5 second-feet.

Extremes.- Maximum discharge during year, 705 second-feet Feb. 27 (gage height, 3.20 feet); 

no flow Oct. 30 and part of Oct. 31.

1930-40: 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 and 1938.

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

Snail diversions above station. Flow regulated by Guadalupe Reservoir (capacity 3,500 

acre-feet); water released during suramer.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in aecond-feet) 

(Shifting-control method uaed June S to Sept. 30)

.5 

1.3

2.9

5.6

9.6

14.4

1.0 

1.2 

1.4 

1.6

l.S 

2.0 

2.3 

2.7

122

170

270

440

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

Z 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

81

28 

83 

84 

25

26 

27 

28 

29 

30 

31

Oct.

aO.2 

a. 2 

a. 2 

a.l 

a.l

.3 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2

.2 

.2 

.3 

.4 

0 

.1

Hov.

0.3 

.3 

.3 

.3 

.3

.3 

.2 

.3 

.3 

.3

.3 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.5 

.2

.4 

.5 

.3 

.4 

.6

.5 

.5

.5 

.5

.5

Dec.

0.5 

.5 

.5 

.5 

.5

.5 

.6 

.5 

.6 

3.5

1.0 

.6 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5 

.5

Jan.

0.8 

4.3 

1.8 

8.5

2.7

3.3 

10 

63 

70 

31

22 

15 

11 

8 

11

16 

15 

18 

19 

21

21 

20 

21 

24 

33

33 

32 

39 

36 

38 

36

Feb.

29 

17 

21 

18 

2S

39 

40 

38 

42 

44

43 

44 

42 

24 

32

40 

27 

14 

34 

42

40 

30 

28 

37 

34

65 

401 

239 

125

Month

Oot 

NOD 

Dec

C

Jan 

Fet 

Mar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

M

alendar year 193

ater year 1939-4

Mar.

73 

50 

37 

31 

26

23 

24 

31 

27 

26

24 

21 

25 

24 

30

30 

29 

31 

37

37

37 

39 

33 

30 

33

38 

24 

33 

38 

131 

172

Apr.

112 

72 

56 

43 

37

33

29 

25 

24 

21

21 

20 

18 

17 

17

15 

16 

19 

21 

21

21 

29 

26 

18 

20

22 

18 

15 

17 

20

Secondfoot-days

4.4 

11.4 

18.1 5

S30.2

684.4 

1,657 

1,244 

843 

572 

267.1 

260 

247 

91.6

5,900.4

May

20 

24 

24 

24 

23

23 

22 

22 

22 

21

21 

21 

21 

21 

21

21 

21 

21 

21 

21

20 

20 

20 

20 

14

6.5 

7

7 

7 

8 

7.5

Maximum

0.4 

.6 

3.5

40

70 

401 

172 

112 

24 

13 

10 

8.5 

8

401

June

7 

6 

6.5 

6.5 

6.5

6.5 

6.5 

6 

6 

6.5

7 

12 

13 

13 

13

13 

12 

11 

11 

11

11 

8.5 

4.6 

5.5 

10

9.5 

9.5 

9.5 

9.5 

9.5

July

9.5 

9.5 

10 

9.5 

9

S.5 

8.5 

8.5 

8.5 

8.5

8.5 

S.5 

8.5 

S.5 

S.5

S.5 

8.5 

8.5 

8.5 

8.5

8.5 

8.5 

8 

7.5

7.5

7.5 

7.5 

7.5 

7.5 

7.5 

7.5

Minimum

0

.2

.4

0

.8 

14 

21 

15 

6.5 

4.6 

7.5 

5.5 

.2

0

Aug.

7.5 

7.5 

7.5 

7.5 

7.5

8 

8 

5.5 

5.5 

S.5

S.5 

8.5 

S.5 

8.5 

8.5

8.5 

8.5 

8.5

8.5 

S

8 

8.5 

8.5 

8.5 

S

8 

S 

8 

8 

8 

8

Mean

0.14 

.38 

.60

2.27

22.1 

57.1 

40.1 

28.1 

18.5 

8.90 

8.39 

7.97 

3.05

16.1

Sept.

8 

8 

7.5 

8

5

.6 

.5 

.2 

.2 

.3

.S 

2.0 

2.0 

2.0 

2.0

2.0 

2.3 

2.3 

2.1 

2.3

2.3 

2.3 

2.3 

2.1 

2.1

2.1 

3.3 

6 

5.5 

5.5

Run-off in 

acre-feet

8.7 

23 

37

1,650

1,360 

3,290 

2,470 

1,670 

1,130 

530 

516 

490 

182

11,710

a No gage-height record; discharge computed on basis of records for Campbell Creek at Saratoga.
152 GUADALUPE CREEK BASIN

Guadalupe Creek at San Jose, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°20'00", long. 121°54'00", 

100 feet downstream from Los Gatos Creek, In city of San Jose, Santa Clara County. 

Altitude of gage, about 80 feet (from topographic map).

Drainage area.- 131 square miles.

Records available.- January 1930 to September 1940.

Average discharge.- 10 years, 33.2 second-feet.

Extremes.- Maximum discharge during year, 8,680 second-feet Feb. 27 (gage height, 11.88 

feet) from rating curve extended above 3,200 second-feet by logarithmic plotting; no 

flow during several months.

1930-40: Maximum discharge, that of Feb. 27, 1940; no flow during most of each 

year.

Remarks.- Records excellent. Small diversions above station. Flow regulated by several 

reservoirs.

Rating table, water year 1939-40 (gage height, in feet, and discharge In second-feet)

0.45 

.5 

.6 

.7 1.4 

2.5

1.0 

1.2 

1.4 

1.6 

1.8

6.4

12

19

29

49

2.2 

2.6 

3.0 

3.5 

4.0

130

300

565

950

1,350

5.0 

6.0

2,200

3,100

7.0 4,000

8.0 4,950

9.0 5,900

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

a

4

5

6

7

8

10

11

la

13

14

Ib

16

IV

18iy

20

21

24

2!>

26

27

31

Oct. Nov. Dec.

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

Jan.

0

0

0

17

0

0

9

236

425

220

190

44

24

4.3

0

0

0

0

0

0

0

0

0

8

46

580

130

17

11

4.9 

0

Feb.

160

52

165

125

49

7.5

0

0

0

0

0

0

0

124

45

5.5

199

80

17

1.5

0

59

25

8.5

348

619

5,560

4,270

2,160

-

Month

Calendar year 1939. .....................

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

Water year 1939-4

Mar.

954

595

412

284

198

140

112

94

79

61

52

40

28

24

17

14

15

4.9

4.1

2.3

0

0

0

0

0

.3

6.5

5.5

146

2,270 

lJ/80

Apr.

806

467

318

229

175

137

120

98

68

50

49

21

17

19

19

19

17

2.6

.2

0

0

0

0

0

0

6.5

.5

0

0

0

Secondfoot-days

0

.1

185.6

2,638.8

0

26,523.9

May

0

0

0

0

0

0

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

Maximum

0

0

.1

166

0

5,560

June July

Minimum

0

0

0

0

0

0

Aug.

Mean

0

0

.003

.51

0

72.5

Sept.

Run-off in 

aore-feet

0

0

.2

368

0

52,610
GUADALUPE CREEK BASIN 153 

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 ml]e upstream from mouth and 4 miles southwest of Edenvale. 

Altitude of gage, about 200 feet (from topographic map).

Drainage area.- 35 square miles.

Records available.- January 1930 to September 1940.

Average d1scharge.- 10 years, 18.4 second-feet.

Extremes.- Maximum discharge during year, 2,440 second-feet Feb. 28 (gage height, 6.60 

feet); no flow for several months.

1930-40: Maximum discharge, 2,670 second-feet Dec. 27, 1931 (gage height, 6.60 

feet), from rating curve extended above 1,800 second-feet; no flov; for several months 

each year.

Remarks.- Records fair. Small diversions above station. Flow regulated by Calero

Reservoir (capacity, 9,000 acre-feet) anrt Almaden Reservoir (capacity, 2,500 acre-feet); 

water released during summer.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7

a

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

20 

94 

26

21 

22 

39 

46 

46

46 

34 

14 

11 

15

14 

12 

11 

11 

16

35 

16 

14 

16 

15 

14

Feb.

31 

16 

24 

15 

12

10 

8 

7.5 

6.5 

6.5

6 

5.5 

5.5 

11 

9.5

8 

20 

12 

9.5 

8

8 

8 

7.5 

7 

15

90 

1,180 

1,180 

493

Month

Oot 

Hoi

Dec

C

Jan 

Fell 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

ember. .................................

alendar year 1939 ......................

il.. ...................................

ater year 1939-4

Mar.

238 

1V1 

97 

50 

32

25 

18 

15 

15 

14

14 

13 

12 

12 

12

11 

10 

9 

8.5 

8

8 

8 

8 

8 

8

8 

8 

15 

20 

508 

384

Apr.

164 

99 

61 

45 

62

62 

56 

47 

44 

39

36 

33 

30 

2V 

25

23 

21 

20 

19 

18

IV 

17 

16 

16 

IV

15 

14 

14 

14 

15

Seeondfoot-days

0 

0 

0

627.7

608 

3,220 

1,767.5 

1,086 

613 

976.5 

1,081 

921 

701

10,974

May

15 

14 

14 

14 

13

12 

12 

11 

10 

11

14 

14 

15 

22 

23

24 

24 

23 

25 

24

23 

21 

21 

23 

22

22 

24 

32 

31 

30 

30

Maximum

0 

0 

0

30

94 

1,180 

508 

164 

32 

52 

3S 

40 

25

1,180

June

29 

32 

30 

29 

32

33 

32 

31 

30 

32

34 

35

3V 

31 

V

8.5 

8 

18 

51 

52

34 

3V 

40 

40 

41

42 

38 

33 

39 

41

July

38 

33 

31 

33 

34

36 

3V 

36 

36 

35

33 

34 

35 

36 

3V

36 

36 

35 

35 

34

34 

34 

34 

33 

33

35 

35 

36 

35 

35 

3V

Minimum

0 

0 

0

0

0 

5.5

8 

14 

10 

7 

31 

18 

21

0

Aug.

39 

39 

39 

39 

40

40 

40 

39 

38 

37

38 

38 

37 

35 

20

18 

23 

23 

23 

22

22 

22 

22 

22 

22

24 

24 

24 

24 

24 

24

Mean

0 

0 

0

1.V2

19.6 

111 

57.0 

36.2 

19.8 

32.6 

34.9 

29.7 

23.4

30.0

Sept.

24 

24 

24 

24 

23

23 

22 

21 

21 

21

21 

22 

21 

24 

25

25 

25 

25 

25 

25

25 

24 

23 

23 

22

23 

25 

25 

24 

22

Run-off in 

acre-feet

0 

0 

0

1,250

1,210 

6,390 

3,510 

2,150 

1,220 

1,940 

2,140 

1,830 

1,390

 21,780
154 GUADALUPE CREEK BASIN

Los Gates Creek at Los Gates, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°13'15", long. 121°59'00", 

in swt 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 topographic map).

Drainage area.- 40.0 square miles.

Records available.- January 1930 to September 1940.

Average discharge.- 10 years, 37.5 second-feet.

Extremes.- Maximum discharge during year, 7,110 second-feet Feb. 27 (gage height, 14.71 

reet) from rating curve extended above 2,600 second-feet uy logarithmic plotting, 

verified by area-velocity study and slope-area computation; no flow parts of several 

months.

1930-40: Maximum discharge, that of Feb. 27, 1940; no flow during part of most 

years.

Remarks.- Records good except those for very low flow, which are fair. Several small 

reservoirs and diversions above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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

.1 

0 

0 

0 

0

0 

0 

0 

0 

0

.5 

.2 

.1 

0 

0

.2 

.2 

.1 

.1 

0

0 

0 

0 

0 

0 

0

Hov.

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

3 

2

1 

1 

1

Dec.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

1.3 

16

15 

7 

3 8 

l!4 

.8

.4 

.3 

.2 

.2 

.2

.2 

.2 

.4 

2.2 

.4

.3 

.3 

.2 

.2 

.3 

.3

Jan.

19 

158 

44 

163 

47

41 

140 

575 

616 

353

286 

166 

110 

82 

62

51 

46 

42 

35

31

29 

28 

26 

27 

174

590 

228 

150 

117 

97 

90

Feb.

172 

120 

255 

191 

148

129 

111 

98 

88 

82

74 

68 

97 

150 

105

92 

264 

150 

128 

112

100 

105 

110 

101 

285

804 

4,160 

2,180 

1,040

Month

Dot 

Kov 

Deo

C

Jan 

Fet> 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

ember. .................................

alendar year 1939 ......................

uapy

«ter year 1939-40......................

Mar.

638 

473 

349 

300 

252

208 

178 

160 

142 

126

115 

106 

96 

91 

84

82 

78 

74 

70 

68

64 

62 

58 

61 

60

97 

104 

75 

391 

1,860 

917

Apr.

501 

342 

268 

221 

186

160 

147 

133 

117 

99

96 

92 

86 

82 

81

77 

73 

65 

52 

50

51 

50 

45 

44 

54

54 

48 

46 

43 

43

Secondfoot-days

1.5 

.9 

52.4

1,670.2

4,623 

11,519 

7,439 

3,406 

859 

334.1 

57.5 

3.5 

11.5

28,307.4

May

43 

40 

40 

40 

35

34 

32 

31 

31 

29

27 

27 

28 

24 

22

25 

25 

23 

22 

21

22 

22 

22 

24 

22

20 

20 

24 

23 

32 

29

May^Tiiiiq

0.5 

.3

16

293

616 

4,160 

1,860 

501 

43 

23 

7 

.6 

1.7

4,160

June

23 

22 

21 

20 

20

19 

18 

16 

12 

9

10

13 

12 

7.5 

7.5

13 

10 

8 

7.5 

10

10 

8 

7 

5.5 

6.5

4.0 

6 

1.9 

2.9 

3.8

July

3.3 

4.6 

2.9 

2.3 

2.3

1.2 

.4 

3.4 

7 

5.5

5 

3.4 

1.0 

.3 

.3

.4 

1.2 

g 9 

4.*0 

.8

1.2 

1.0 

.3 

.2 

.8

.3 

.3 

.3 

.3 

.3 

.3

Minimum

0 

0 

.1

0

19 

68 

58 

43 

20 

1.9 

.2 

0 

0

0

Aug.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.1 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

.3

.2 

.2 

.6 

.2 

.2

0 

0 

0 

0 

0 

0

He an

0.05 

.03 

1.69

4.58

149 

397 

240 

114 

27.7 

11.1 

1.85 

.11 

.38

77.3

Sept.

0 

0 

0 

0 

0

1 

.3 

.2 

.3 

.3

.4 

.3 

.2 

.2 

.3

.2 

.3 

.3 

.9 

.3

.2 

.2 

.8 

.4 

.3

.3 

.3 

.8 

1.7

1

Run-off in 

acre-feet

3.0 

1.8 

104

3,310

9,170 

22,850 

14,760 

6,760 

1,700 

663 

114 

6.9 

23

56,160

Peak discharge.- Jan. 8 (9 p.m.) 1,040 sec.-ft.; Jan. 26 (2 a.m.) 1,000 sec.-ft.; Feb. 3 (10 

a.m.) 439 sec.-ft.; Feb. 17 (4 a.m.) 735 see.-ft.; Feb. 27 ( 1 p.m.) 7,110 sec.-ft.; Mar. 30 (9 

a.m.) 2,640 sec.-ft.
GUADALUPE CREEK BASIN 155

Campbell Creek at Saratoga, Ca.llf.

Location.- Water-stage recorder and concrete control, lat. 37°15'15", long. 122°02'25", 

in Quito grant, half a mile southwest of Saratoga post office, Santa Clara County. 

Altitude of gage, about 500 feet (from topographic map).

Drainage area.- 8.8 square miles.

Records available.- October 1933 to September 1940.

Extremes.- Maximum gage height during year, 5.35 feet Feb. 27 (discharge not determined); 

no new on many days during October and November.

1933-40: Maximum discharge computed, 910 second-feet Feb. 13, 1937, from rating 

curve extended above 430 second-feet; discharge probably greater on Feb. 27, 1940; 

maximum gage height, that of Feb. 27, 1940; no flow part of each year.

Remarks.- Records fair October to April; poor May to September, 

above station by San Jose Water Works.

Diversion and regulation

Discharge, In second-feet, water year October 1939 to September 1940

Day

1a 

s

4 

5

6 

7 

8 

9 

10

11 

18 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

50 

51

Oct.

0.2 

.1 

0 

0 

0

.4 

.6 

.2 

.1 

0

0 

0 

0 

0 

0

.1

.1 

.1 

.1

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

HOT.

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

.5 

.3 

.2 

.1

.9

Dee.

0.2 

.1 

.3 

.3 

.2

.1 

.2 

.1

.6 

8

2.8 

1.3 

.9 

.4 

.6

.7 

1.0 

.8

.8 

.7

.8 

.8 

.9 

.9 

.8

.8 

.8 

.8 

.8 

.8 

.9

Jan.

8 

26 

9 

33

10

8.5 

54 

133 

110 

89

74 

34 

20 

15 

13

10 

8.5 

8 

7 

7

8.5 

6 

6 

5.5 

95

96 

42 

27 

21 

17 

15

Feb.

28 

18 

43 

32 

24

22 

18 

16 

14 

13

12 

11 

16 

29 

21

18 

67 

38 

29 

25

21 

20 

18 

17 

60

250 

800 

500 

200

Month

Oct 

Hov 

Dec

C

Jan 

Pet 

Mar 

Apr 

»?y 

Jim 

Jul 

Aug 

8ep

H

uary

y......................................

ater year 1939-4

Mar.

160 

120 

65 

66 

45

40 

36 

32 

26 

26

24 

22 

20 

18 

17

15 

15 

13 

12 

11

13 

12 

12 

12 

12

17 

20 

14 

80 

380 

260

Apr.

128 

81 

69 

51 

45

41 

40 

37 

34 

30

27 

23 

23 

22

20

19 

17 

16 

15

15

14 

14 

IS 

12

14

13 

12 

11 

11 

11

Seoondfoot-days

2.0 

2.0 

29.2

665.2

954.0 

2,380

1,584 

870 

219.0 

92.0 

SI 

9.3 

9.0

6,176.5

Hay

11 

11 

10 

11 

10

9

8 

S 

8 

7

7 

7 

7 

6.5

6.6

6.5 

6.5 

6.5 

6 

6

6 

6 

5 

5 

5

5 

4.6 

4.5 

4.5 

4.6 

4.5

Mq-rli^nm

0.6 

.6 

8

63

133 

800 

380 

128 

11 

4

800

June

4 

4 

4 

4 

4

4 

4 

4 

3.6 

3.5

3.5 

3.5 

3.5 

3 

3

3 

3 

3 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

2 

2 

2 

2 

2

1HT»4imii«

0 

0 

.]

0

6.E 

11 

11 

11 

4.S 

2

0

July

> 1

Aug.

 0.3

Mean

0.06 

.07 

.94

1.55

30.8 

82.1 

51.1 

29,0 

6.87 

S.07 

1 

.3 

.3

16.9

Sept.

 0.3

Run-off In 

acre-feet

4.0 

4.0 

68

1,120

1,890 

4,720 

3,140 

1,730 

422 

182 

61 

18 

18

12,260

Kote.- Rating doubtful or gage-height record not usable Feb. 25 to Mar. 7, Mar. 27-31, Apr. 19- 

28, Hay 16 to Sept. 30; discharge computed on basis of several discharge measurements and records 

for Los Oatoa Creek at Los Oatos.

9-292 February 1936

TOITKD STATES DEPARTMENT OF THE IHTERIOR 

Geological Surrey
156 COYOTE CREEK BASIN

Coyote Creek near Madrone, Calif.

Location.- Water-stage recorder, lat. 37°10'001', long. 121°37'4011 , In northwest corner 

of San Jose grant, a quarter of a nile upstream from highway bridge at mouth of 

canyon, a quarter of a mile downstream from Las A.nlmas Creek, and 2.8 miles northeast 

of Madrone, Santa Clara County. Altitude of gage, about 420 feet (from topographic 

map).

Drainage area.- 193 square miles.

Records available.- October 1902 to September 1912, December 1916 to September 1940.

Average discharge.- 34 years, 74.6 second-feet.

Extremes.- Maximum discharge during year, 3,920 second-feet Feb. 29 (gage height, 10.28 

feet); minimum, 0.1 second-foot Oct. 13.

1902-12, 1916-40: Maximum discharge, about 25.000 second-feet, probably on Mar. 7, 

1911 (record furnished by Duryea, Haehl, & Oilman); no flow at times.

Remarks.- Records excellent except those for period of no gage-height record, which are 

good. No large diversion. Flow regulated by Coyote Reservoir (capacity, 30,000 acrefeet); water released during summer.

Discharge, In second-feet, water year October 1939to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

15 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

89 

30 

31

Oct.

0.4 

.3 

.3 

.2 

.4

1.0 

.6 

.3 

.3 

.2

.2 

.2 

.2 

.2 

1.0

.7 

.6 

.5 

.5 

.5

.4 

.3 

.3 

.4 

.5

.4 

.4 

.3 

.3 

.4 

.3

Hov.

0.3 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

Dec.

0.3 

.3 

.3 

.3 

.3

.3 

.4 

.4 

.4 

.8

1.0 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.4 

.4

.4

.5 

.6 

.8 

.7

.6 

.6 

.6 

.6 

.6 

.6

Jan.

1.0 

5.5 

2.3 

7.6 

34

S7 

27 

49 

136 

320

265 

63 

42 

54 

48

43 

22 

20 

20 

19

19 

19 

20 

18 

18

97 

97 

117 

102 

66 

106

Feb.

167 

SO 

94 

73 

50

42 

36 

36 

55 

42

41 

40 

40 

125 

60

41 

70 

51 

40 

40

48 

50 

50 

45 

82

191 

1,330 

2,810 

3,320

Month

Dot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul

AU£

Sep

H

alendar year 19 59. .....................

y......................................

ate* year 1939-4 0..... .................

Mar.

1,570 

S06 

459 

342 

276

238 

135 

83 

98 

100

98 

90 

83 

78 

70

68 

66 

63 

56 

52

51 

49 

47 

46 

60

51 

127 

117 

114 

1,260 

2,490

Apr.

1,190 

651 

420 

22S 

109

135 

137 

130 

116 

107

98 

88 

81 

80 

70

62 

59 

55 

51 

48

48 

46 

42 

40 

45

49 

45 

41 

38 

36

Secondfoot-days

12.6 

8.1 

15.9

4,652.4

1,884.3 

9,149 

9,233 

4,346 

1,838 

1,865 

1,477 

1,663 

1,489

32,979.9

May

34 

32 

37 

48 

42

40 

40 

39 

46 

62

83 

88 

89 

83 

76

69 

59 

59 

5S 

58

58 

57 

59 

66 

71

71 

71 

71 

63 

55 

54

Mayjjpmi

1.0 

.3 

1.0

195

320 

3,320 

2,490 

1,190 

89 

69 

69 

59 

66

3,320

June

53 

53 

53 

55 

59

64 

69 

69 

69 

69

68 

68 

68 

64 

64

64 

64 

63 

63 

62

62 

61 

61 

61 

60

60 

60 

60 

60 

59

July

59 

59 

59 

58 

58

58 

58 

58 

58 

58

58 

58 

52 

53 

57

45 

31 

31 

30 

32

37 

37 

36 

43 

42

41 

40 

40 

40 

43 

48

Mip"lni\ini

0.2 

.2

.1

1.0 

36 

46 

36 

32 

53 

30 

41 

47

.2

Aug.

48 

57 

58 

58 

58

a58 

a58 

a58

a57 

a57

57 

57 

58 

58 

59

58 

58 

57 

50 

52

52 

53 

49 

42 

41

41 

46 

62 

52 

52 

52

Mean

0.41 

.27 

.51

12.7

60.8 

315 

298 

145 

59.3 

62.2 

47.6 

53.6 

49.6

9Q.1

Sept.

52 

52 

50 

49 

48

48 

48 

48 

48 

48

48 

48 

48 

48 

48

48 

48 

48 

47 

52

55 

55 

55 

55 

61

49 

49 

49 

49 

48

Run-off in 

acr«-feet

26 

16 

32

9,230

3,740 

18,150 

18,310 

8,620 

3,660 

3,700 

2,930 

3,300 

2,960

66,420

a Ho gage-height record; discharge interpolated.

9-832 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeological Survey
COYOTE CREEK BASIN 157

Coyote Creek near Edenvale, Calif.

Location.- Water-stage recorder and concrete control, lat. SVie'lS", long. ISl^V'SS", 

at east boundary of Santa Teresa grant, at "The Narrows," 1& 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 1940.

Average discharge.- 24 years, 34.5 second-feet.

Extremes. Maximum discharge during year, 3,230 second-feet Feb. 29 (gage height, 6.72 

reet); no flow for several months.

1916-40: Maximum discharge, 10.000 second-feet (unregulated) Feb. 10, 1922 (gage 

height, 12.8 feet, from floodmarks), from rating curve extended above 4,900 second-feet 

parallel to 1917 curve defined by current-meter measurements to 8,400 second-feet; no 

flow during several periods In each year.

Remarks.- Records excellent except those for Jan. 27 to Feb. 24, which are fair. 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.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

z

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

90

31

Oct. HOY. Dec. Jan.

o

o

0

0

0

0

0

0

0

0

222

22

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

9

14

5.5

Feb.

106

93

40

59

20

4.7

.6

0

0

0

0

0

0

3.7

48

15

7.5

27

10

3.0

.9

4.4

6.5

1.7

6.5

101

1,810

2,430

2,910

-

Month

Noyoinber .« « , 

March, ....................................

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

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

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

Water year 1939-40............... .......

Mar.

1,610

887

523

348

270

219

158

60

60

67

65

56

47

42

34

29

24

19

16

11

9

6

4.3

2.8

5

5

43

7S

67

745

2,240

Apr.

1,330

738

465

272

101

115

118

112

101

S3

50

24

36

37

33

27

22

18

14

11

S.5

7.5

4.4

2.7

2.7

6.5

4.7

1.6

.1

0

Secondfoot-days

0

0

0

1S4.2

272.6

7,708.5

7,750.1

3,745.7

352.5

350.0

236.5

297.7

228.2

20,941. S

Hay

O

0

0

0

0

0

0

0

0

0

0

17

27

29

25

21

17

12

16

15

14

14

13

16

20

25

20

19

IS

9.5

5

Hfl Tt"1 Tffiim

0

0

0

79

222

2,910

2,240

1,330

29

19

16

20

10

2,910

June

7

S.5

6

16

18

16

18

19

16

7

6

5.5

8

9.5

14

18

16

14

13

16

13

11

11

10

10

8.5

8.5

8.5

S.5

9.5

-

July

s

8

9.5

16

15

15

16

16

16

14

13

15

11

4.4

2.7

.2

3.7

5

4.1

8.5

2.7

.3

6.5

6.5

4.4

1.0

0

0

2.0

5.5

6.5

M< T>-^ TTPTBJ

0

0

0

0

0

0

2.S

0

0

5.5

0

.2

4.7

0

Aug.

4.7

8.5

19

20

20

16

13

11

12

13

13

12

11

11

10

9

8

9

10

7.5

7

7

4.7

2.3

.7

.2

1.1

7

13

11

6

Mean

0

0

0

.50

8.79

266

250

125

11.4

11.7

7.63

9.60

7.61

57.2

Sept.

5.5

5.5

6

5.5

4.7

8

8.5

8.5

S.5

S.5

7.5

7

7.5

7.5

7.5

7

6

5.5

6.5

7.5

10

10

10

10

10

9.5

8,5

7.5

7

7

-

Run-off in 

acre-feet

0

0

0

365

541

15,290

15,370

7,430

699

694

469

590

453

41,540

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
158 ALAMEDA CREEK BASIN

Alameda Creek near Miles, 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 Miles, Alameda County. Altitude of gage, about 100 feet (from 

topographic map).

Drainage area.- 633 square miles.

Records available.- October 1916 to September 1940.

Average discharge.- 23 years (1916-19, 1920-40), 77.8 second-feet.

Extremes.- Maximum discharge during year, 8,600 second-feet Feb. 27 (gage height, 10.60 

feet); minimum, 0.7 second-foot Oct. 12, 13.

1916-40: Maximum discharge, 13,900 second-feet Feb. 10, 1922 (gage height, 12.44 

feet, former site and datum), from rating curve extended above 7,600 second-feet; no 

flow during periods in 1918, each year of 1924-35, and possibly 1920.

Remarks.- Records good. Flow regulated by Calaveras Reservoir (capacity 100,000 acrereet). Diversions for San Francisco water supply and other uses above station.

Cooperation.- Gage-height record collected in cooperation with city of San Francisco. 

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.5 

.4 

.3 

.3

.5 

.5 

.4 

.3 

.3

.3 

.2 

.2 

.5 

.8

.9 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.2 

1.6 

1.6

1.4 

1.4 

1.4 

1.4 

1.3 

1.9

HOV.

2.2 

2.3 

2 = 3 

2.3 

2.3

2.3 

2.5 

2.5 

2.5 

3.2

3.3 

3.5 

3.5 

3.5 

4.1

4.4 

4.4 

4.1 

4.6 

4.6

4.4 

4.4 

4.4 

4.4 

4.8

4.6 

4.4 

4.3 

4.4 

4.4

Dec.

4.3 

4.1 

4.1 

4.1 

3.2

2.9 

3.6 

4.3 

4.4 

5

4.6 

4.1 

3.9 

4.1 

4.1

4.1 

4.1 

4.1 

3.9 

3.9

3.9 

3.9 

4.1 

4.3 

4.1

4.1 

4.1 

4.1 

3.9 

3.2 

3.0

Jan.

4.6 

6.5 

6.5 

12 

8

12 

17 

270 

618 

772

2,180 

618 

238 

117 

66

55 

30

17 

12 

11

9.5 

8.5 

8 

7.5 

20

650 

450 

206 

119 

78 

78

Feb.

192 

292 

514 

776 

346

238 

189 

136 

104 

77

62 

49 

42 

229 

198

129 

256 

216 

153 

112

93 

84 

102 

104 

260

663 

4,860 

5,860 

5,040

Month

Oct 

HOT 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

V

uary

ater year 1939-4

Mar.

1,860 

910 

567 

444 

370

269 

214 

172 

175 

157

139 

125 

115 

108 

101

97 

93 

87 

83 

80

73 

64 

59 

56 

59

110 

328 

200 

178 

2,180 

3,100

Apr.

1,220 

629 

422 

332 

257

237 

184 

157 

151 

148

130

118 

103 

91 

85

80 

82 

78 

65 

64

58 

53 

46 

40 

39

44 

40 

35 

31 

28

Seoondfoot-days

26.8 

108.9 

123.6

7,418.2

6,705.1 

21,376 

12,573 

5,047 

455.5 

74.8 

40.9 

125.1 

19.8

46,676.5

May

26 

24 

24 

25 

24

23 

21 

20 

19 

18

17 

16 

15 

15 

14

13 

12 

12 

10 

10

10 

9.5 

9.5 

6.5 

8

8 

8.5 

9.5 

9 

8.5 

8.5

Mq-|yH|piim

1.9 

4.8 

5

446

2,180 

5,860 

3,100 

1,220 

26 

7.5 

2.7 

35 

1.3

5,860

June

7.5 

7 

7 

7 

7

4.2 

2.4 

1.9 

1.4 

1.3

1.2 

1.2 

1.1 

1.0

1.0 

.9 

1.0 

1.0 

.9

.9 

2.0 

2.3 

2.1 

8.1

2.0 

1.6 

1.3 

1.2 

2.0

July

2.7 

2.1 

1.9 

1.6 

1.0

.7 

.7 

.7 

1.2 

1.2

1.6 

1.9 

2.1 

2.3

2.1 

2.0 

1.6 

1.0 

.7

.4 

.7 

.6 

.4 

.7

1.0 

1.2 

1.6 

1.6 

1.3 

.9

M^T^nunn

0.2 

2.9 

2.9

.2

4.6 

42 

56 

28 

8 

.9 

.4 

.4 

.3

.2

Aug.

1.0 

1.3 

1.9 

.9 

.6

.5 

.4 

.4 

1.0 

2.3

3.3 

2.6 

2.4 

2.4

2.6 

3.2 

3.2 

4.0 

7.5

4.6 

3.8 

3.8 

16 

35

7.5 

2.4 

1.9 

2.3 

2.0 

1.6

Mean

0.86 

3.63 

3.99

20.3

216 

737 

406 

168 

14.7 

2.49 

1.32 

4.04 

.66

128

Sept.

1.1 

1.3 

1.2 

.9 

.7

.7 

.6 

.6 

.6 

.5

.4 

.3 

.4 

.5

.5 

.6 

.8 

.9 

.8

.6 

.6 

.6 

.6 

.7

.7 

.6 

.6 

.6 

.4

Run-off in 

acre-feet

53 

216 

245

14,710

13,300 

42,400 

24,940 

10,010 

903 

148 

81 

248 

39

92,580

Peak discharge).- Jan. 11 (7 a.m.) 3,080 sec.-ft.; Feb. 27 (11 p.m.) 8,600 sec.-ft.; Mar. 31 

(1 a.m.) 4,540 sec.-ft.

9-838 February 1936

UNITED STATES DEPARTMENT OF THB INTERIOR 

Geological Surrey
SAN LORENZO CREEK BASIN 159

San Lorenzo Creek at Haywards, Calif.

Location.- Wire-weight gage, lat. 37°41'05", long. 122°03'50", at highway bridge on B 

Street, 0.5 mile downstream from Palomares Creek and half a mile northeast of Haywards. Datum of gage is 133.16 feet above mean sea level (general adjustment of 1929).

Drainage area.- 38 square miles.

Records available.- January to September 1940 (discontinued).

Extremes.- Maximum discharge during period, 3,440 second-feet Feb. 27 (gage height, 13.13 

feet), from rating curve extended above 2,000 second-feet; practically no flow Sept. 

19, 20, 22, 23.

Remarks.- Wire-weight gage read twice dally, with many extra readings during periods of 

high water. Records good except those for days of no gage-height record, which are 

fair. A few very small diversions above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

84

25

26

27

28

29

30

31

Oct. HOT. Dec. Jan.

.

-

.

20

5.5

11

19

114

154

220

224

65

31

22

16

12

11

11

9

8

7.5

7

7

6.5

80

151

52

32

26

22

21

Feb.

26

22

85

55

38

35

34

28

25

24

a:

19

22

121

44

39

118

52

39

35

a32

30

28

26

106

329

1,470

795

595

_

-

Month

March, ....................................

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

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

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

The period..............................

Mar.

186

132

100

80

69

62

52

48

42

37

34

30

28

28

27

27

25

24

22

22

20

20

20

18

18

59

44

26

62

978

304

Apr.

Secondfoot-days

1,364.5

4,293

2,644

1,073

255.9

67.8

23.4

6.5

4.8

-

144

95

78

66

59

52

48

43

39

36

33

30

28

27

25

24

23

21

19

18

19

18

16

16

22

16

16

14

14

14

May

12

12

a!3

14

11

11

10

10

9.5

9.5

9

a9

a8.5

a8.5

a8

8

7.5

7

6.5

6

6

7

6.5

7.5

7

4.7

4.7

5.5

5.5

6

5.5

MqyfrTTPVTi

224

1,470

978

144

14

4.7

1.6

.4

.5

-

June

4.7

4.4

4.7

4.2

3.8

3.3

2.9

2.9

2.9

2.4

2.2

1.8

1.8

1.8

1.6

1.8

1.8

1.8

1.4

1.8

1.8

1.6

1.6

1.6

1.3

1.3

1.3

.8

1.2

1.3

July

1.6

1.4

1.4

1.2

1.8

.6

.8

.7

.7

.7

.7

.7

.8

.8

 7

.7

.5

.7

.8

.8

.7

 S

.5

.3

.3

.4

.5

.3

.5

.5

.5

Aug.

0.2

.2

.1

.2

.2

.2

.1

.2

.2

.2

.2

a. 2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

,2

.4

.3

.3

.2

.2

.2

Sept.

0.1

.1

.1

.1

.2

.2

.2

.3

.3

.2

a. 2

.2

.4

.5

.2

.2

.3

.1

0

0

.1

0

0

.2

.1

.1

.1

.1

.1

.1

 Ud-. Mean *£.£*.£»

5.5 4S.7 2,710

19 148 8,520

18 85.3 5,240

14 35.8 2,130

4.7 8.25 508

.8 2.26 134

.3 .75 46

.1 .21 13

0 -16 9.5

19,310

a. Ho gage-height record; discharge interpolated*

9-232 February 19S6

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
160 KERN RIVER BASIN

Kern River near Kernvllle, Calif.

Location.- Water-stage recorder, lat. 35°56', long. 118°29', in NEi sec. 14, T. 23 S., 

R. 32 E., 3 miles upstream 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 1940.

Avei §

e discharge.- 28 years, 691 second-feet, combined flow of Kern River near Kernville 

Kern River No. 3 canal.

Extremes..- Maximum discharge during year, 3,480 second-feet May 25 (gage height, 9.62 

feet); minimum, 0.8 second-foot Aug. 30.

1912-40: Maximum discharge. 9,690 second-feet (unregulated) Jan. 17, 1916 (gage 

height, 8.8 feet, former datum), from rating curve extended above 4,100 second-feet; 

no flow at times during period July 31, 1924, to Feb. 7, 1925.

Remarks.- Records excellent except those for extreme low water, which are fair. Kern 

River No. 3 canal, (p. 163), diverts water 1 mile above station.

Cooperation.- Water-stage recorder graph and results of 15 discharge measurements furnisnea by Southern California Edison Co. in connection with a Federal Power Commission 

project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

Z

4 

5

6

7 

8 

9 

10

11 

18 

13 

14 

IS

16 

17 

18 

19 

20

81 

22

ea

84 

85

86 

87 

SB 

29

80 

51

Oct.

1.1

1.3 

1.2 

1.3 

1.2

1.2

1.3 

1.3 

1.2

1.2 

1.2 

1.2 

1.1 

1.0

1.0 

1.0 

1.1 

1.1 

1.2

1.3 

l.S 

1.3 

l.S 

1.6

1.4 

l.S 

1.3 

l.S 

1.3 

l.S

HOT.

1.3 

1.3 

1.3 

1.3 

1.3

1.3

1.3 

1.3 

1.3

l.S 

1.3 

1.3 

1.4 

1.4

1.4

1.3 

1.3 

1.2 

1.6

1.4 

1.5 

1.5 

1.3 

1.4

1.5 

1.5 

1.4 

1.4 

1.4

Dec.

1.5 

1.5 

1.5 

1.5 

1.5

1.4

1.6 

1.6 

1.5

1.5 

1.5 

1.4 

1.4 

l.S

1.3 

1.5 

1.6 

1.7 

1.7

1.7 

1.7 

1.8 

1.9 

1.7

1.7 

1.8 

1.8 

1.8 

1.7 

1.7

Jan.

1.7 

43 

143 

79 

12

1.6

15 

1.6 

224

696 

304 

6.5 

2.3 

1.8

1.6 

1.6 

1.6 

1.6 

1.5

1.3 

1.3 

1.4 

1.4 

4.3

428 

88 

S.O 

2.1 

1.8 

1.6

Feb.

2.6 

2.9 

284 

248 

32

4.3

2.9 

2.5 

2.2

1.9 

1.8 

1.9 

2.7 

2.7

2.6 

2.6 

2.7 

2.6 

2.5

2.3 

3.0 

320 

111 

247

900 

425 

306 

380

Month

Dot 

Hov 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jill 

Aug 

Sep

« ter year 1939-40......................

Mar.

196 

146 

106 

74 

68

88 

115 

170 

218 

196

135 

57 

31 

21

24

31 

71 

91 

115 

130

183 

256 

331 

396 

467

542 

1,090 

771 

599 

542 

604

Apr.

506 

399 

339 

325 

284

279 

308 

336 

405 

479

566 

696 

853 

1,010 

1,100

886 

793 

862 

1,020 

1,100

1,210 

1,420 

1,380 

1,390 

1,340

1,190 

1,020 

929 

929 

996

Seoondfoot-days

38. 2 

40.7 

49. S

49,704.5

2,075.3 

3,304.0 

7,864 

24,350 

68,860 

48,425 

5,928.5 

31.9 

35.6

161,002.5

May

1,160 

1,480 

1,590 

1,480 

1,390

1,400 

1,460 

1,600 

1,920 

2,310

2,570 

2,550 

2,590 

2,770 

2,950

2,940 

2,480 

2,040 

1,820 

1,930

2,340 

2,550 

2,610 

2,950 

3,170

2,910 

2,730 

8,680 

2,420 

2,160 

1,910

lla-«-<iinmi

1.6 

1.5 

1.9

1,090

696 

900 

1,090 

1,420 

3,170 

2,570 

1,020 

1.2 

1.3

3,170

June

2,080 

2,140 

2,020 

2,110 

1,950

2,000 

2,070 

2,150 

2,570 

2,140

2,070 

2,120 

2,190 

2,150 

2,050

1,900 

1,840 

1,510 

1,320 

1,080

1,010 

1,030 

938 

914 

914

821 

749 

775 

784 

1,030

July

1,020 

714 

599 

554 

502

463 

415 

383 

328 

271

200 

148 

115 

84 

65

36 

15 

2.9 

l.S 

1.2

1.1 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0 

1.0

Wtllimim

1.0 

1.2 

l.S

.7

l.S 

1.8 

21 

279 

1,160 

749 

1.0 

.9 

1.0

.9

Aug.

1.1 

1.0 

.9 

1.0 

1.0

1.1 

1.1 

1.2 

1.2 

1.2

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.1 

1.1 

1.1

1.0 

1.0 

1.1 

1.0 

1.1

1.0 

1.0 

.9 

.9 

.9 

.9

Mean

1.23 

1.36 

1.59

136

66.9

114 

254 

812 

2,221 

1,614 

191 

1.03 

1.19

440

Sept.

1.0 

1.1 

1.0

1.1

1.2

1.1 

1.0 

1.0 

1.0 

1.0

1.0 

1.1 

1.1 

1.1 

l.S

l.S 

l.S 

l.S 

l.S 

l.S

l.S 

1.3 

l.S 

1.3 

1.3

l.S 

1.3 

1.3 

1.3 

1.3

Run-off In 

acre-feet

76 

81 

98

98,590

4,120 

6,550 

15,600 

48,300 

136,600 

96,050 

11,760 

63 

71

319,400

9-232 February 1936

TOUTED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
KERN RIVER BASIN 161

Combined discharge, in second-feet, of Kern River and Kern River No. 3 canal 

near Kernville, Calif., for water year October 1939 to September 1940

Day

1

2

S

4

5

6

7

e

9

10

11

18

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

236

246

264

270

262

257

277

2B5

280

277

267

258

254

250

246

242

236

231

225

222

218

215

812

210

213

208

211

215

208

204

201

Nor.

199

197

194

193

193

192

189

191

198

197

193

191

189

186

189

186

187

19.7

183

180

178

180

178

177

184

188

184

180

179

176

Dec.

178

184

184

182

180

184

194

189

188

184

192

188

174

176

181

1B3

180

178

178

176

169

165

167

181

167

171

179

184

188

190

190

Jan.

188

300

468

395

293

229

254

366

360

650

1,280

893

482

371

352

332

317

300

290

278

270

269

275

267

348

1,020

670

498

444

485

414

Feb.

466

454

801

841

620

556

534

466

432

422

420

409

386

423

406

400

412

407

385

388

401

433

913

701

838

1,490

1,020

900

979

_

-

Month

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

Calendar year 1959 ......................

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

tfiril.. ...................................

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

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

Water year 1959-40......................

Mar.

795

744

704

673

666

686

711

765

815

793

732

656

628

615

619

629

671

690

710

724

771

844

919

984

1,060

1,130

1,680

1,360

1,190

1,130

1,190

Apr.

1,100

988

927

914

872

867

894

919

989

1,070

1,150

1,280

1,430

1,590

1,680

1,470

1,370

1,440

1,600

1,680

1,790

2,000

1,960

1,960

1,920

1,770

1,600

1,500

1,500

1,570

Seoondfoct-days

7,400

5,628

5,604

182,169

13,292

17,303

26,284

41,800

86,400

65,700

22,296

8,865

6,182

306,756

May

1,730

2,050

2,160

2,050

1,960

1,970

2,030

2,170

2,490

2,880

3,140

3,120

3,160

3,340

3,520

3,510

3,050

2,610

2,390

2,500

2,900

3,110

3,170

3,510

3,730

3,470

3,290

3,240

2,980

2,710

2,460

MgyJBfmn

285

199

194

1,670

1,280

1,490

1,680

2,000

3,730

8,800

1,620

386

285

3,730

June

2,630

2,690

2,570

2,660

2,500

2,550

2,620

2,700

2,780

2,740

2,670

2,730

2,800

2,760

2,660

2,500

2,440

2,110

1,920

1,680

1,610

1,630

1,540

1,520

1,520

1,420

1,350

1,380

1,390

1,630

-

July

1,620

1,310

1,200

1,150

1,100

1,050

1,000

968

910

850

776

722

686

654

633

600

577

553

524

501

478

461

447

444

469

478

458

440

429

412

398

Minimum

201

176

165

165

188

385

615

867

1,730

1,350

398

220

192

165

Aug.

386

379

365

348

337

327

319

316

313

307

303

302

308

299

294

288

280

273

265

258

258

248

245

243

241

241

234

228

227

225

280

Bean

239

188

181

499

429

597

848

1 9 393

8,787

2,190

719

286

206

838

Sept.

222

221

223

225

225

222

215

210

810

206

204

206

206

206

204

206

205

206

206

202

199

198

198

197

194

198

198

192

194

196

-

Run-off in 

acre-feet

14,680

11,160

11,180

361,300

26,360

34,380

58,130

82,910

171,400

130,300

44,230

17,580

12,260

608,400

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
162 KERN RIVER BASIN

Kern River near BakersfieId, Calif.

Location.- Water-stage recorder, lat. 35°25'54", long. 118°56'43", in SWi sec. 2, T. 29 

S., R. 28 E., at mouth of lower canyon, 5 miles northeast of Bakersfield. Altitude 

of gage, about 470 feet (from topographic map).

Drainage area.- 2,420 square miles.

Records available.- October 1893 to September 1940.

Average discharge.- 45 years (1893-1906, 1908-40), 959 second-feet.

Extremes.- Maximum discharge during year, 5,454 second-feet Feb. 26 (gage height, 4.55 

feet); minimum, 188 second-feet Dec. 21.

1896-40: Maximum discharge, 20,000 second-feet Feb. 7, 1937 (gage height, 9.12 

feet); minimum, 57 second-feet (regulated) in November 1924.

 i 

Remarks.- Many diversions for irrigation and four paver plants above station.

Cooperation.- Complete record, except run-off, in acre-feet, and annual figures, furnlshed by Kern County Land Co.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

278 

270 

274 

291 

298

301 

308 

321 

322 

317

515 

307 

297 

289 

280

276 

264 

256 

252 

248

251 

250 

251 

247 

244

245 

247 

248 

254 

242 

240

HOT.

243 

233 

231 

23V 

237

237 

237 

238 

238 

235

233 

229 

226 

225 

223

221 

224 

225 

227 

227

226 

227 

228 

229 

229

230 

234 

231 

226 

221

Dec.

220 

220 

220 

2P1 

222

222 

223 

226 

228 

228

229 

225 

222

217 

217

219 

221 

222 

221 

218

211 

218 

217 

220 

225

225 

225 

230

244 

257 

271

Jan.

286 

300 

331 

439 

420

419 

359 

365 

414 

482

2,827 

2,460 

1,544 

998 

782

662 

580 

507 

480 

453

434 

422 

425 

425 

438

534 

1,506 

1,088 

874 

773 

702

Feb.

693 

756 

833 

1,908 

1,630

1,151 

1,041 

964 

886 

838

805 

790 

776 

753 

819

780 

747 

767 

785 

773

776 

795 

878 

1,463 

1,249

2,891 

2,672 

1,751 

1,816

Month

Oot 

Hov 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year 1939......................

ater year 1939-40...... ................

Mar.

1,965 

,503 

,362 

,367 

,355

,246 

,177 

,183 

,186 

,229

,226 

,155 

,071 

993 

972

961 

959 

960 

972 

969

974 

1,014 

1,066 

1,140 

1,196

1,235 

1,461 

2,270 

1.796 

1,653 

1,612

Apr.

1,891 

1,736 

1,589 

1,450 

1,399

1,344 

1,301 

1,354 

1,379 

1,453

1,535 

1,623 

1,853 

2,011 

2,192

2,367 

2,105 

1,967 

2,054 

2,227

2,357 

2,569 

2,838 

2,741 

2,708

2,677 

2,485 

2,232 

2,094 

2,049

Secondfoot-days

_

-

_

-

May

2,114 

2,326 

2,621 

2,665 

2,526

2,439 

2,446 

2,507 

2,713 

3,023

3,354 

3,565 

3,536 

3,596 

3,754

3,945 

3,885 

3,457

3,014 

2,823

2,946 

3,340 

3,472 

3,657 

3,976

4,091 

3,760 

3,651 

3,570 

3,283 

2,996

Ma^nniM

325 

249 

279

2,028

4,749 

5,454 

2,735 

2,930 

4,438 

3,271 

1,905 

429 

250

5,454

June

2,780 

2,929 

2,973 

2,873 

2,969

2,786 

2,882 

2,885 

2,933 

3,075

2,967 

2,913 

2,979 

3,009 

2,950

2,828 

2,714 

2,609 

2,290 

2,113

1,880 

1,791 

1,809 

1,729 

1,683

1,675 

1,583 

1,572 

1,589 

1,588

July

1,800 

1,625 

1,425 

1,268 

1,186

1,140 

1,127 

1,083 

1,001 

942

950 

910 

841 

784 

729

692 

667 

629 

617 

595

573 

544 

528 

499 

469

473 

507 

489 

467 

451 

435

Minimum

226 

220 

188

178

279 

673 

948 

1,282 

2,048 

1,483 

4E9 

225 

197

188

Aug.

426 

419 

407 

393 

382

373 

359 

354 

344 

330

325 

316 

313

307 

304

302 

300 

293 

280 

271

265 

261 

259 

265 

256

250 

240 

239 

242 

234 

230

Mean

274 

230 

225

637

733 

1,131 

1,265 

1,986 

3,195 

2,445 

821 

308 

222

1,068

Sept.

239 

241 

240 

240 

234

231 

230 

234 

229 

228

218 

217 

218 

217

217

21G 

222 

223 

219 

220

221 

222 

221 

220 

217

213 

208 

201 

204 

208

Run- off in 

acre-feet

16,830 

13,700 

13,850

461,100

45,080 

65,030 

77,810 

118,200 

196,500 

145,500 

50,470 

18,920 

13,230

775,100

Note.- The figures of maximum and minimum discharge as shown for each month represent the Instantaneous values.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
KERN RIVER BASIN 

Kern River No. 3 canal near Kernville, Calif.

163

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.- March 1921 to September 1940. 

Average discharge.- 19 years, 352 second-feet.

Extremes.- Maximum daily discharge during year, 606 second-feet June 12 and 28; minimum 

daily, 163 second-feet Dec. E2.

1921-40: Maximum daily discharge, 689 second-feet May 28, 1938; no flow at times.

Remarks.- Records excellent except those for period of no gage-height record, which are 

ralr. Canal diverts from 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 12 discharge measurements furnisned by Southern California Edison Co. in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

S3.

22

23

24

25

26

27

28

29

30

31

Oct.

235

245

263

269

261

256

278

284

279

276

266

257

253

249

245

241

235

230

224

221

217

214

211

209

211

207

210

214

207

203

200

Sov.

198

196

193

192

192

191

188

190

197

196

192

190

188

185

188

185

1S6

196

182

178

177

179

177

176

183

]87

182

179

178

175

-

Dec.

177

182

182

180

178

183

192

187

186

182

190

187

173

175

180

182

178

176

176

174

167

163

165

179

165

169

177

182

1B6

188

188

Jan.

186

257

325

316

281

827

252

351

358

426

589

589

475

369

a350

a330

a315

298

288

277

269

268

274

266

338

588

582

495

442

423

412

Feb.

463

451

517

593

5S8

552

530

463

429

420

418

407

384

420

403

397

409

404

382

386

399

430

593

590

591

594

592

594

599

-

-

Month

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

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

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

Water year 1939-40......................

liar.

599

598

598

599

598

598

596

595

597

597

59-

599 59 1?

594

5So

598

600

599

595

594

588

588

568

588

588

586

585

592

592

592

589

Apr.

5S9

589

568

589

588

588

586

583

584

537

585

593

580

580

579

580

581

581

580

578

578

576

575

575

576

576

575

575

575

574

-

Seoondfoot-days

7,368

5,596

5,549

132,489

11,216

13,998

18,419

17,433

17,532

1 7 9 2 88

16,368

8*834

6,152

145,753

Hay

573

570

569

570

570

570

571

568

567

566

568

572

572

571

570

569

570

569

560

567

564

562

562

560

557

558

558

558

556

554

553

Maximum

284

198

192

612

589

599

600

589

573

606

601

385

224

606

June

553

551

550

550

548

547

546

545

213

605

602

606

605

605

605

604

604

603

603

603

602

603

605

605

605

604

604

606

604

602

-

July

601

599

596

594

593

590

588

585

582

579

576

574

571

570

568

564

562

550

523

500

477

460

446

443

468

477

457

439

428

411

397

Minimum

200

175

163

163

186

382

585

574

553

213

39V

219

191

163

Aug.

385

378

364

347

336

326

318

315

o!2

306

302

301

301

298

293

287

279

272

264

257

251

247

244

242

240

240

233

227

226

224

219

Mean

238

187

179

363

362

483

594

581

566

576

528

285

205

398

Sept.

221

220

222

224

224

221

214

209

209

205

203

205

205

205

203

205

204

205

205

201

198

197

197

196

193

191

191

191

193

195

"

Run-off in 

acre-feet

14,610

11,100

11,010

262,800

22,250

27,760

36,530

34,580

34 770

34 290

32^470

17,520

12,200

289,100

a No gage-height record; discharge interpolated.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
164 KERN RIVER BASIN

Borel canal at Tllley Creek, Calif.

Location.- Water-stage recorder, lat. 35°42', long. 118°27', In NWt 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 map).

Records available.- January 1910 to September 1914, October 1925 to September 1940. 

Average discharge.- 15 years (1925-40), 342 second-feet.

Extremes.- Maximum dally discharge during year, 555 second-feet July 9, 10; minimum 

aaiiy, 5.5 second-feet Apr. 13.

1925-40: Maximum dally discharge, 605 second-feet June 3-5, 1927, and May 22, 

1936; no flow at times.

Remarks.- Records good. Canal diverts water from Kern River half a mile below Kernvllle 

to supply Borel hydroelectric plant of Southern California Edison Co., 10 miles below 

station, at which polnc water Is returned to Kern River.

Cooperation.- Water-stage recorder graph and results of 14 discharge measurements furnlshea cy Southern California Edison Co. In connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

81

82

23

84

25

26

27

88

29

30

31

Oct.

234

238

259

270

266

260

276

284

282

282

'271

260

262

244

238

231

226

220

216

211

209

206

202

202

207

202

202

210

192

198

198

HOT.

190

187

187

1S7

186

1S5

184

183

194

194

190

187

184

181

180

186

178

187

182

175

171

172

172

166

171

183

177

172

171

167

-

Dec.

169

174

177

175

173

173

185

180

177

175

178

182

165

163

169

171

171

166

163

163

157

154

157

165

161

157

167

181

181

183

186

Jan.

1S3

218

463

379

432

266

271

365

415

426

531

530

531

489

426

407

386

373

338

322

311

299

313

310

329

532

534

532

529

612

503

Feb.

517

536

532

53S

539

539

639

538

632

525

521

498

474

608

508

493

505

518

484

476

487

510

541

641

541

538

541

541

540

_

-

Month

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

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

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

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

SvHj... ...................................

Water year 1939-4

Mar.

540

539

539

539

540

541

541

543

544

543

544

546

546

547

548

548

549

549

549

549

550

550

550

550

549

549

547

546

547

548

548

Apr.

548

549

549

549

549

550

650

551

551

551

551

476

5.5

115

546

647

547

647

647

547

547

547

546

547

548

544

546

548

548

548

Seoondfoot-days

7,247

5,428

5,298

131,568

12,455

15,100

16,918

15,394.5

16,996

16,507

15,771

8 688

5,' 806

141,508.5

May

549

561

551

549

549

549

549

549

549

548

548

548

548

548

548

548

548

548

548

548

548

548

548

547

547

547

546

547

548

548

549

Vfixijnufli

284

194

186

567

534

541

550

551

551

551

555

377

213

555

June

549

549

549

549

549

550

561

551

561

551

551

551

551

561

551

561

550

550

550

549

550

560

550

550

560

551

551

551

550

550

-

July

551

553

553

554

554

554

554

554

555

555

554

554

553

553

552

550

550

547

522

499

475

459

438

427

446

463

448

430

421

405

388

IHntimm

192

166

154

115

183

474

539

5.5

546

549

388

211

180

5.5

Aug.

377

366

361

334

333

323

316

308

301

297

293

292

293

290

286

280

270

262

268

253

244

236

235

232

230

232

228

219

214

214

211

Mean

234

181

171

360

402

521

546

513

548

650

609

194

387

Sept.

213

213

212

212

210

207

200

194

196

192

189

192

193

190

1S5

193

191

191

193

192

189

187

185

186

183

180

183

183

185

187

-

Run-off in 

acre-feet

14,370

10,770

10,510

261,000

24,700

29,950

33,560

30,530

33,710

32,740

31 280

17^030

11,520

280,700

9-2S2 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeologlcal Survey
KERN RIVER BASIN 165

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 Iyl4, January 1919 to September 1940.

Average discharge.- 19 years (1911-13, 1919-25, 1929-40), 98.7 second-feet.

Extremes.- Maximum discharge during year, 651 second-feet Apr. 15 (gage height, 3.72 

feet); minimum, 3 second-feet Aug. 17.

1911-14, 1919-40: Maximum discharge, 3,450 second-feet Mar. 2, 1938 (gage height, 

6.69 feet), from rating curve extended above 1,900 second-feet; maximum gage height, 

7.1 feet Jan. 25, 1914, former site, same datum; no flow several days In July and 

August 1929 and September 1934.

Remarks.- Records fair October to March, good April to September. Lowell and Thomas 

irrigation ditches divert about 2,000 acre-feet yearly above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

51

Oct.

29

29

30

30

29

29

30

31

30

28

27

26

23

22

22

22

22

22

22

22

22

22

22

22

23

24

24

24

24

24

23

HOT.

23

23

22

23

23

24

23

23

26

26

26

24

24

24

26

26

26

25

24

24

24

24

24

25

27

29

30

29

27

27

-

Dec.

26

SB

29

30

28

29

33

32

32

31

30

31

27

25

26

29

30

30

29

29

28

25

24

28

25

23

24

29

29

32

30

Jan.

32

36

59

60

47

36

38

52

42

67

177

125

61

43

37

35

38

41

40

40

39

40

43

43

45

145

100

72

66

62

60

Feb.

71

84

178

162

110

93

90

74

66

66

68

66

63

68

61

59

62

67

61

59

62

67

93

91

100

284

195

189

186

_

-

Month

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

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

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

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

Water year 1939-40......................

Mar.

148

133

127

112

108

106

104

110

112

110

104

93

95

95

96

98

102

108

118

122

133

148

162

183

207

250

391

342

309

323

326

Apr.

298

242

228

225

204

225

250

288

350

406

434

459

504

536

585

464

390

418

482

608

536

570

560

536

500

434

398

349

346

352

-

Seoondfoot-days

779

761

881

31,853

1,821

2,895

4,975

12,077

7,311

2,114

473.0

166.1

339.0

34,572.1

May

360

363

356

328

307

294

288

282

279

276

270

267

261

249

240

235

230

230

212

192

188

190

188

182

175

163

164

148

142

135

127

Mffiyf ymm

31

30

33

615

177

284

391

585

363

121

43

10

16

585

June

121

118

114

111

107

103

99

99

94

90

84

79

76

71

66

64

60

56

62

60

47

45

43

41

40

38

36

35

36

39

-

July

43

38

30

23

21

IS

18

17

15

12

12

' 12

12

12

12

12

12

12

12

11

11

11

11

10

10

9.5

9.5

10

11

13

13

Minimum

22

22

23

8

32

59

93

204

127

36

9.6

3.0

6.5

3.0

Aug.

10

7

7

7

6.5

6.5

5.5

4.9

5.5

6

6

4.9

3.6

3.8

3.8

3.5

3.0

3.1

3.1

3.2

3.2

3.6

4.8

4.6

4.6

4.9

5

5.5

5.5

5.5

5

Mean

25.1

25.0

28.4

87.3

58.7

99.8

160

403

236

70.5

15.3

5.04

11.3

94.5

Sept.

6.5

8.5

9.5

10

10

9

6.6

6.5

7

7

6.5

7

7.5

8

9.5

11

13

15

15

15

15

15

15

15

15

15

16

15

15

16

-

Run-off in 

acre-feet

1,550

1,490

1,750

63,190

3,610

5,740

9,870

23,950

14,500

4,190

938

310

672

68,570

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
166 KERN RIVER BASIN

South Fork of Kern River at Isabella, Calif.

Location.- Water-stage recorder, lat. 35°40', long. 118°28', in NWt 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.

Drainage area.- 985 square miles.

Records available.- October 1910 to September 1913, January 1929 to September 1940.

Average discharge.- 11 years (1929-40), 87.7 second-feet.

Extremes.- Maximum discharge during year, 550 second-feet probably on Apr. 23 (gage 

height, 3.67 feet, from recorded range of stage); minimm, 3.5 second-feet Aug. 14.

1929-40: 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.

RemarTffi._-* -Records good except those for periods of no gage-height record, which are fair. 

Many diversions above gage for Irrigation; some return flow.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

86

27

SB

29

30

31

Oct.

14

14

14

14

14

14

14

14

14

14

14

14

13

14

14

14

14

14

14

14

14

14

14

12

13

13

13

11

12

12

11

HOT.

12

13

15

15

16

}6

16

16

15

12

12

14

15

14

14

14

14

14

14

14

14

14

14

14

14

14

14

15

13

12

Dec.

15

15

15

15

15

15

15

15

15

15

15

14

. 15

15

16

16

16

16

16

16

16

16

16

16

16

16

14

12

11

11

12

Jan.

12

15

15

17

19

17

a!8

a!9

a22

a25

a70

alOO

a85

a70

a60

a55

a62

a62

a 52

a50

a50

a52

a52

54

49

77

120

100

88

73

72

Feb.

76

90

108

176

155

133

124

116

114

108

104

100

98

106

112

99

98

100

102

94

94

96

103

116

118

157

218

196

196

-

Month

Uarch. ....................................

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

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

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

Water year 1939-40......................

Mar.

188

166

157

150

143

138

130

130

130

130

128

124

103

94

86

78

63

50

30

26

22

22

24

26

23

26

40

155

154

147

163

Apr.

190

194

164

155

164

152

166

184

182

211

234

a290

a330

a360

a400

a440

a320

a260

a340

a400

a 430

a460

a490

a460

a400

a360

a330

aSOO

a290

a280

-

Seoondf oot-days .

418

423

461

24,637.0

1,612

3,507

3,046

8,946

6*269

793

3V7« 0

260*.5

368.5

26,481.0

Hay

278

273

278

278

254

242

225

216

207

190

174

178

186

184

182

188

211

230

234

227

205

188

186

182

180

170

163

161

148

133

118

Ma-yjynini

14

16

16

500

120

218

188

490

OITQ & to

94

14

14

16

490

June

94

82

67

57

47

38

29

25

23

23

22

20

18

16

16

15'

14

14

15

15

16

15

16

12

12

12

14

16

16

14

-

July

12

13

12

12

12

13

14

14

14

14

12

14

13

14

12

13

10

12

14

14

14

13

14

11

8.5

S.5

9.5

11

10

10

9.6

Minimum

11

12

11

9.5

12

76

22

152

1 1 ft J.J.O

*) J.JC9 

8.5

6

7.5

6

Aug.

10

9.5

9.5

9

10

10

9.5

8.5

8

9.5

10

10

9.5

6.5

7.5

7.5

6

6

6

6

6.5

6.5

7

7.5

7.5

8

8

9

8.5

9.5

14

Mean

13.5

14.1

14.9

67.5

52.0

121

98.5

298

pnp ifUfi

26.4

IP A«S *!6O 

8.40

12.3

72.4

Sept.

12

16

15

15

15

14

13

13

10

8

8

7.5

9.5

7.5

14

14

14

13

12

12

12

12

12

12

12

12

13

13

14

14

-

Run-off in 

acre-feet

829

839

914

48,860

3,200

6,960

6,040

17,740

12,430

1,570

748

517

731

52,520

a No gage-height record; discharge computed on basis of records for station near Onyx.

9-252 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
TULARE LIKE BASIN 

Tulare Lake in Kings County, Calif.

167

Location.- Staff ga 

T. 21 S., R. 21 

sea level.

lat. 36°03' (revised), long. 119°44', at southwest corner sec. 31, 

about 12 miles southeast of Stratford. Datun of gage is at mean

Records available.- May 1937 to September 1940. March 1906 to September 1920 (incompietej at several other sites.

Extremes.- Maximum elevation recorded during year, 190.6 feet May 29 to June 9.

1537-40: Maximum elevation, 195.5 feet, June 5, 1938.

1906-40: Maximum stage probably occurred June 21, 1907 (gage height, 14.0 feet, 

site and datum then in use); lake dry or practically so during parts of 1906, 1914, 

1916, 1919, each year of 1920-22 and 1924-36, and 1937.

Remarks.- Tulare Lake receives water from Kings, Kaweah, and Tule Rivers during high 

water periods and occasionally from Kern River," Deer Creek, and several small intermittent streams. Its boundaries have been greatly altered in recent years by construction of levees and other reclamation work.

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 1939 to September 1940

D«y

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

80

21

22

23

24

26

26

27

28

29

30

31

Oct.

188.2

1S8.2

1S8.2

1S8.1

168. 1

188.1

188.1

188.1

188.1

188.1

188.1

188.1

1S8.0

18S.O

188.0

188.0

188.0

188.0

188.0

188.0

187.9

187.9

187.9

187.9

187.9

187.8

137. 8

187.8

1S7.8

187.8

187.8

Nor.

187.7

137. 7

187.7

187.6

187.6

187.6

187.6

187.6

187.6

187.6

187.5

187.5

187.5

187.5

187.5

187.5

187.5

187.5

187.5

187.4

187.4

187.4

187.4

187.4

187.4

187.4

187.4

187.4

187.4

187.4

-

Dec.

187.4

187.4

187.4

187.4

187.4

187.4

187.3

187.3

187.3

187.2

187.2

187.2

187.2

187.2

187.2

187.2

187.2

187.2

187.1

187.2

187.1

187.1

187.1

187.1

187.1

187.1

187.1

187.1

187.1

187.1

187.1

Jan.

187.1

187.1

187.1

187.1

187.1

187.1

187.1

187.1

187.1

187.1

187.2

187.2

137. 2

137. 2

137. 2

187.2

187.3

187.3

187.3

187.3

187.3

187.3

187.3

187.3

187.3

187.3

187.3

187.4

187.4

187.4

187.4

Feb.

187.5

187.5

187.5

187.6

187.6

187.7

187.7

187.7

187.7

187.7

187.8

187.8

187.8

187.8

187.8

137. 8

187.8

187.8

187.9

187.9

187.9

187.9

187.9

188.0

188.0

188.2

188.3

188.6

188.9

_

-

Mar.

189.0

189.0

189.0

189.1

189.2

189.2

189.3

189.3

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.3

189.3

189.3

189.3

189.3

189.2

189.2

189.2

189.2

189.2

189.2

Apr.

189.2

189.2

189.3

189.3

189.4

\89.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.4

189.3

189.3

189.3

189.3

189.3

189.3

189.3

189.3

*«y

189.3

189.3

189.3

189.3

189.3

189.3

189.3

189.3

189.3

139.3

189.4

189.4

189.5

189.6

189.7

189. S

189.8

189.9

190.0

190.1

190.2

190.2

190.2

190.2

190.3

190.4

190.4

190.5

190.6

190.6

190.6

June

190.6

190.6

190.6

190.6

190.6

190.6

190.6

190.6

190.6

190.5

190.5

190.5

190.5

190.5

190.5

190.4

190.4

190.4

190.3

ISO. 3

190.3

190.3

190.3

190.2

190.2

190.2

190.2

190.1

190.1

190.0

July

190.0

139.9

189.9

189.8

189.8

189.7

189.7

189.6

189.6

189.5

189.4

189.3

189.3

189.2

189.1

189.1

189.0

188.9

188.7

188.6

188.6

188.5

188.4

188.2

188.2

188.0

187.9

187.8

187.7

187.6

187.5

Aug.

187.4

187.3

187.2

187.2

187.0

187.0

186.9

186.8

186.7

186.6

186.5

186.4

186.3

186.2

186.1

186.0

186.0

185.9

185.8

185.8

185.7

186.6

185.5

186.4

185.4

185.3

185.3

185.3

135. 2

185.2

185.2

Sept.

185.1

185.1

185.1

185.0

185.0

185.0

185.0

185.0

185.0

186.0

185.0

135. 0

184.9

184.9

184.9

184.9

186.0

185.0

184.8

184.9

184.8

184.8

184.7

184.7

184.7

184.6

184.6

1S4.5

184.6

184.5

9-238 September 1937

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
168 TULABE LAKE BASIN

Tule River near Porterville, 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 Porterville. Altitude of gage, about 580 feet (from topographic map).

Drainage area.- 266 square miles.

Records available.- May 1901 to September 1940.

Average discharge.- 39 years, 142 second-feet.

Extremes.- Maximum discharge during year, 7,490 second-feet Jan. 11 (gage height, 9.63 

feet); minimum, 1.1 second-feet Aug. 23.

1901-40: 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 except those for periods of no gage-height record, which are fair. 

Several small diversions above station. Power is developed on Middle Fork and 

tributaries.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

a

3

4

5

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.

2.6

5.5

15

13

9.5

10

30

32

28

22

20

18

16

15

14

11

9.5

9.5

10

9

8

7.5

5.5

2.8

9

8.5

7.5

8

7

6

7.5

HOT.

12

12

12

12

12

12

12

10

9.5

10

10

10

10

9

10

11

9

11

10

9.5

10

11

12

12

12

13

15

15

15

15

-

Dec.

14

14

15

14

14

16

21

21

21

22

30

28

24

22

21

22

22

22

23

23

23

24

24

32

32

30

28

28

29

29

30

Jan.

30

144

305

317

217

116

123

301

246

751

3,410

1,530

548

a340

a250

a210

a!90

a!70

a!50

alSO

118

113

106

105

472

1,770

a620

a 400

a300

a270

0250

Feb.

a300

a350

al,230

1,490

683

525

a450

a350

a300

272

252

236

216

434

382

292

285

323

268

254

250

274

1,640

749

754

2,660

1,110

869

1,140

-

Month

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

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

Ib7........ ...............................

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

Water year 1939-sto. .....................

Mar.

S37

703

619

550

490

455

426

414

396

371

347

318

299

285

279

268

268

268

263

263

270

283

292

301

313

337

847

532

434

400

768

Apr.

1,200

684

564

514

471

429

411

390

388

385

388

408

439

455

484

414

365

360

374

382

402

432

432

423

402

458

385

340

328

313

Secondfoot-days

376.9

343

718

27,548.2

14,002

18,338

12 j 896

13,420

10,077 

3 108

548*5

128.2

74,041.9

May

330

368

379

365

347

342

332

335

355

382

402

382

382

374

371

358

347

333

304

301

308

308

306

308

304

283

268

257

238

216

202

Masi* 

32

15

32

775

3,410

2,660 

847

1,200

402 

200

35

6 

6

3,410

June

200

196

186

180

172

163

157

152

148

143

130

123

116

108

98

91

86

77

72

71

64

54

48

44

41

41

40

36

34

37

-

July

35

34

34

33

32

31

29

29

27

22

22

22

20

20

a20

a!5

a!5

a!5

alO

alO

8

7.5

8.5

7

6.5

5.5

5.5

6

6.5

6.5

6

Minimum

2.6

g

14

.2

30

216

263

313

202

34

5.5 

1.3

2.2

1.3

Aug.

6

5.5

5

4.7

4.9

4.5

4.9

4.2

3.6

3.5

2.8

2.3

1.9

1.9

1.6

1.6

1.6

1.6

1.9

2

1.6

1.4

1.3

1.5

1.9

1.9

2.5

2.2

2

2

2

Mean

12 .2

11.4

23.2

75.5

452

632

416

447

325

104

17.7 

2 .78

4.27

202

Sept.

2.2

2.4

2.4

2.7

3.1

3.6

3.6

3.S

4.3

3.8

3.8

3.8

3.8

4.3

4.5

5

4.5

5

5.5

5.5

5

4.9

4.9

5

4.9

4.9

4.5

5

6

5.5

Run-off in 

acr»-feet

74f

680

1,420

54,650

017 rjnr\ £, I f i f\J

36,370

25,580

26, 62( 

X9 99C

6jX6C

lj09C 

171

254

146,900

Peak discharge.- Jan. 11 (6:30 a.m.) 7,490 sec.-ft.} Jan. 26 (1:30 a-m.) 4,220 sec.-ft.3 Feb. 3 

,^:30 p.m.J 3,340 sec.-ft.; Feb. 23 (9:30 a.m.) 3,000 sec.-ft.j Feb. 26 (3:30 a.m.) 4,930 sec.-ft.; 

Mar. 31 (8:30 p.m.) 1,690 aec.-ft.

a Ho gage-height record; discharge Interpolated or computed on basis of recorded range of stage 

and scattered staff-gage readings.
TULARE LAKE BASIN 169

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 1940.

Average discharge.- 10 years, 42.5 second-feet.

Extremes.- Maximum discharge during year, 2,590 second-feet Jan. 11 (gage height, 6.52 

feet); no flow Oct. 1 and Aug. 8 to Sept. 19.

1930-40: 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 in each year except 1938.

Remarks.- Records good. Several ditches divert water above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

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 

3.4 

6 

3.2 

2.0

1.3 

6 

7 

4.2 

3.2

2.0 

1.2 

.9 

1.0 

1.2

1.1 

1.0 

1.2 

1.2 

1.2

1.2 

1.0 

.7 

.9 

2.8

3.8 

3.2 

3.0 

2.6 

2.2 

1.8

Hov.

2.0 

2.0 

2.2 

2.2 

2.2

2.2 

2.2 

2.1 

2.2 

2.4

2.4 

2.4 

2.2 

1.8 

2.0

1.8 

1.7 

2.2 

2.8 

2.4

l.e

1.6 

1.7 

2.1 

2.0

2.3

3.4 

4.4 

4.7 

4.7

Dec.

4.7 

4.7 

4.4 

3.8 

3.2

3.2

3.2 

4.0 

4.4 

4.4

8 

9 

7 

6.5 

4.2

4.2

4.0 

3.8 

4.0 

4.0

4.2 

4.7 

5.5 

9 

10

8.5 

8 

7.5 

8.5 

9 

9.5

Jan.

9 

19 

71 

63 

45

23 

21 

48 

48 

231

1,100 

555 

208 

US 

83

65 

54 

47 

42 

37

35 

33 

32 

31 

150

470 

203 

134 

105 

88 

77

Feb.

102 

138 

313 

394 

229

203 

182 

142 

123 

110

1-02 

93 

85 

136 

132

110 

116 

142 

118 

109

103 

114 

395 

237 

246

799 

417 

311 

338

Month

Dot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May

JUB

Jul

Aug 

Sep

V

nary

atsr year 19 39-*

Mar.

283

245 

21S 

194 

177

164 

152 

144 

138 

132

127

114 

109 

103 

98

93 

93 

91 

90 

86

85 

83 

82 

82 

88

95 

283 

177 

146 

134 

247

Apr.

510 

344 

274 

262 

229

206 

191 

180 

169 

162

152

146 

138 

134 

146

13S 

129 

121 

119 

116

112 

112 

110 

109 

109

148 

129 

112 

107 

102

Seoondfoot-days

71.5 

 72.1 

179.1

8,401.8

4,245 

6,039 

4,353 

5,016 

2,055 

575 

68.8 

2.4 

1.9

22,678.8

May

96 

93 

93 

91 

91

90 

86 

83

eo

78

77 

75 

72 

69 

68

65 

64

59 

56

52

51 

51 

50 

48

46 

45 

44 

42 

39 

37

Maxi^

7 

4.7

10

257

1,100 

799 

283 

510 

96 

37 

8 

.5 

 2

1,100

June

37 

36 

37 

34 

33

30 

28 

26 

25 

23

22 

20 

20 

19

18

17 

17 

14 

14 

13

12 

12 

10 

9.5 

9

7.5 

7.5 

7 

7-5 

10

July

8 

7.5 

6.5 

5.5 

5

4-0 

3.2 

2.5 

2.0

1.8

1.6 

1.6 

1.8 

1.5

1.5

1.4 

1.4 

1.5 

1.6 

1.5

1.3 

.9 

.8 

.7 

.6

.5 

.5 

.5 

.5 

.5 

.6

Minl*u»

0 

1.6 

3.2

0

9 

85 

82 

102 

37 

7 

.5 

0 

0

0

Aug.

0.5 

.5 

.4 

.4 

.3

.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

Mean

2.31 

2.40 

5.7B

23.0

137 

208 

140 

167 

66.3 

19.2 

2.22 

.08 

.06

62.0

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0

.1

.1 .1

.2 

.2 

.2

.2 

.2

.2 

.2

Run-off in 

acre-feet

142 

143 

355

16,660

8,420 

11,980 

8,630 

9.950 

4,080 

1,140 

136 

4.8 

3.8

44,980

Peak discharge.- Jan. 11 (7:30 a. 

(7 p.m.) 604 sec.-ft.j Feb. 23 (10 

(12 m.) 740 sec.-ft.

n.) 2,590 sec.-ft.; Jan. 26 (2 a.m.) 815 sec.-i't.j Feb. 3 

a.m.) 622 sec.-ft.; Feb. 26 (4 a.m.) 1,200 sec.-ft.j Apr. 1

400454 O - 41 - 12

OTITED STATES DEPARTMENT OF THE INTERIOR 

Beological Survey
170 TULAKE LAKE BASIN

Kaweah River near Three Rivers, Calif.

Location.- Water-stage recorder, lat. 36°£4', long. 118°57', In SWi sec. 33, T. 17 S., R. 

28 E., 2i miles downstream from South Fork and 3 miles southwest of Three Rivers. 

Altitude of gage, about 620 feet (from topographic map).

Drainage area.- 520 square miles.

Records available.- February 1936 to September 1940. April 1903 to January 1936, at 

stafr-gage site 2 miles upstream.

Average discharge.- 37 years, 560 second-feet.

Extremes.- Maximum discharge during year, 8,510 second-feet Feb. 26 (gage height, 9.56 

feet); minimum, 30 second-feet Nov. 21 (gage height, 1.06 feet).

1903-40: 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 except those for periods of no gage-height record, which are 

good. Diversions above station for Irrigation. Power developed on Middle and East 

Forks.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

1.20 

1.3 

1.5 

1.7

55

85

123

1.9 

2.2 

2.6 

2.9

167

244

366

474

3.6 

4.0 

4.5 

5.0

790

1,020

1,320

1,630

5.5 

6.0 

6.5 

7.3

2,100

2,600

3,190

4,320

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IV

18

19

20

81

as

S3

84

85

86

27

28

29

30

31

Oct.

4S

107

187

162

13S

127

222

200

187

167

149

129

125

111

93

89

82

75

71

63

62

61

58

58

72

68

66

66

62

53

55

Hov.

54

53

54

56

53

49

50

50

54

55

53

50

45

43

48

43

48

53

49

48

45

49

47

48

47

47

45

49

49

50

-

Dec.

49

50

49

43

47

47

53

51

50

50

75

79

62

58

55

55

54

54

53

51

51

51

51

56

58

55

54

56

.56

58

53

Jan.

59

4S8

577

1,010

430

250

338

760

537

1,410

2,820

1,750

776

502

393

343

311

290

266

252

239

230

222

225

876

2,230

930

646

543

482

455

Feb.

459

494

1,880

2,060

978

775

67S

578

514

478

463

436

400

721

618

510

502

510

447

444

444

498

2,630

1,170

1,540

4,310

2,000

1,760

3,000

_

-

Month

Oetober. ..................................

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

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

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

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

Water year 1939-43......................

Mar.

1,880

1,540

1,320

1,180

1,070

1,020

9S4

934

990

912

S23

745

702

678

633

67S

706

711

702

711

780

856

930

1,000

1,190

1,150

2,570

1,600-

1,300

1,300

2,440

Apr.

2,140

1,700

1,450

1,350

1,250

1,150

1,150

1,100

1,150

1,200

1,300

1,500

1,700

1,850

1,850

1,450

1,300

1,350

1,600

1,700

1,900

2,100

2,150

2,200

2,000

1,850

1,450

1,250

1,200

1,300

Secondfoot-days

3,223

1,489

1,694

116,731

20,690

31 297

34)l35

46,640

71 040 37)514

7,467

2 002 1)322

258,513

May

1,660

2,030

2,090

1,930

1,850

1,870

1,890

2,100

2,410

2,720

2,760

2,670

2,710

2,790

2,840

2,640

2,220

1,990

2,100

2,320

2,580

2,520

2,610

2,800

2,660

2,370

2,240

2,140

1,950

1,810

1,770

Mq-yTtmim

222

56

79

1,410

2,620

4,310

2 570

2 200

2 840

l)860

556

103

49

4,310

June

1,860

1,810

1,660

1,700

1,560

1,570

1,620

1,700

1,740

1,620

1,620

1,620

1,620

1,580

1,500

1,390

1,300

1,140

1,020

S72

845

818

750

726

697

632

587

609

632

716

July

556

506

451

432

414

386

356

330

302

275

258

239

225

210

200

192

192

ISO

172

160

153

146

140

134

134

131

125

121

121

117

109

Minimum

48

43

47

31

59

400

678

1,100

1,660

58V

109

43

41

41

Aug.

103

99

94

89

S3

80

79

75

74

72

71

66

66

65

63

62

61

58

58

53

51

49

48

46

51

51

49

48

48

45

43

Mean

104

49.6

54.6

320

667

1,079

1,101

1,555

2j292

1 *241 250

64*6

44.1

706

Sept.

43

43

43

45

49

49

47

45

43

41

41

43

44

45

45

47

47

47

4P

48

45

43

41

41

41

41

41

42

42

42

Run-off in 

acre-feet

6,390

2 950

3)360

231,500

41 040

AO OCy Ann UOU

67,710

92 510

140 900 74)410

14, 810

S

QfJf) f v t U

2,620

512,800

, Peak discharge.- Jan. 10 (10:30 p.m.) 4,340 sec.-ft.} Jan. 25 (12 p.m.) 4,720 sec.-ft.} Feb. 3 

(11 p.m.) 4,290 sec.-ft.} Feb. 23 (8 a.m.) 4,370 sec.-ft.} Feb. 26 (3 a.m.) 8,510 sec.-ft.} Mar. 

27 (6:50 a.m.) 5,220 see.-ft.

Hote.- Ho gage-height record Mar. 28-30 and Apr. 2-30} discharge computed on basis of unpublished 

records for McKay Point, 7 miles downstream.

9-2S2 February 1936 Geological Survey
TULARE UKE BASIN 171

North Fork of Kaweah River at Kaweah, Calif.

Location.- Water-stage recorder, lat. 36°29', long. 118°55', In SEi sec. 34, T. 16 S., R. 

28 E., li miles upstream from Mannlkln Creek, Ijr miles north of Kaweah, and 3 miles upstream from mouth. Altitude of gage, about 1,080 feet (from topographic map).

Drainage area.- 128 square miles.

Records available.- October 1933 to September 1940. October 1910 to October 1933, at site 

1 mile downstream.

Average discharge.- 29 years (1911-40), 96.2 second- feet.

Extremes.- Maximum discharge during year, 2,550 second-feet Feb. 26 (gage height, 6.48 

feet); minimum, 4.6 second-feet Sept. 28 (gage helghb, 1.44 feet).

1910-40: 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 January to June and fair remainder of year. 

slons above station for Irrigation.

Several small dlverDischarge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

81

22

23

24

25

26

27

as

29

SO

31

Oct.

7

14

29

21

14

14

34

£4

18

14

11

10

9.5

8.5

8

8

8

7.5

7.5

7.5

7.5

7.5

7

7.5

10

10

9.5

9.5

9

8.5

8.5

Mov.

8

8

8

8

8

8

8

8

8

9

8.5

8.5

8.5

8

8.5

8.5

8.5

8

8

8

8

8

8

7.5

7.5

8

8.5

8.5

8.5

8.5

Dec.

8.5

8.5

8.5

8.5

8.5

8.5

8.5

9

8.5

7.5

14

14

10

9

9

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

10

10

9.5

9.5

9.5

10

8.5

10

Jan.

10

128

123

2S7

112

53

78

210

194

366

640

420

205

131

101

86

77

71

63

5S

55

52

50

50

201

564

245

168

139

122

115

Feb.

113

131

397

481

260

210

184

154

137

126

120

113

104

219

172

141

137

131

119

119

119

129

760

335

472

1,270

624

525

92S

.

-

Month

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

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

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

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

Water year 1939-4

Mar.

570

454

392

346

314

297

2S7

284

281

260

236

216

205

200

200

202

208

210

208

213

827

245

260

266

32S

304

826

432

346

367

739

Apr.

575

432

380

353

324

307

304

297

297

304

321

349

388

400

404

324

300

321

346

356

384

376

376

564

335

342

290

269

260

266

Secondfoot-days

369.0

245.0

286.5

17,179.9

5,174

8j 730 9 923 10)344

7 199

1 '572 902

£34 «0

167.4

45,135.9

May

290

314

321

307

290

287

278

281

287

297

297

284

272

266

260

245

236

219

205

197

197

192

1S4

182

172

163

152

146

135

126

117

Hn^Hipim

34

9

14

404

64O __ Q______

*ope

575

*Q-1

O£J.

115

37

10

6.5

1,270

June

115 lie

109

102

9S

91

85

SO

77

74

71

6S

64

60

56

54

52

50

48

48

46

42

41

39

37

37

35

34

38

39

July

37

34

32

29

27

26

23

23

20

19

19

IS

18

17

17

16

16

16

16

15

14

14

14

13

12

12

11

12

11

11

10

Minimum

7

7.5

7.5

1.8

10

104

260

117

34

10

6

4.9

4.9

Aug.

10

10

9.5

9

9

8.5

e

7.5

7.5

7

6.5

6

6

6

6

6

6

6

6.5

6.5

6

6.5

6.5

7.5

8

8.5

7

7.5

6

6.5

6.5

Mean

11.9

8 «17

9.24

47.1

167

301

320

345

63.4

18 .5

7 .23

5.58

123

Sept.

6.5

6.5

5

6

6

6.5

6.5

6

6

5.5

5

5

4.9

5

5

5.5

5.5

6

6

6

6

5.5

5.5

5.5

5.5

5

5

5

5

5

Run-off in 

acre- feet

732

486

568

34,080

10,260

17, 320

19,680

£0,520 14 2 8O

3,770

1,130 

44^4

332

89,520

Peak discharge.- Jan. 10 (9:30 p.m.) 1.1SO sec.-ft.; Feb. 23 (e a.m.) 1,270 sec.-ft.; Feb. £ 

(2 a.m.) 2,550 sec.-ft.; Feb. 2~9 (5 a.m.) 1,330 sec.-ft.; Mar. 27 (4:30 a.m.) 1,650 sec.-ft.; 

Mar- 31 (6 a.m.) 1,230 sec.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
172 TULARE LAKE BASIN

Kings River above North Fork, Calif.

Location.- Water-stage recorder, lat. 36°52', long. 119°07', in N& sec. 27, T. 12 S., R. 

26 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 1940. March 1927 to December 1928, at site 

half a mile downstream.

Average discharge.- 10 years (1927-28, 1931-40), 1,447 second-feet.

Extremes.- Maximum discharge during year, 9,100 second-feet May 25 (gage height, 6.62 

feet); minimum, 102 second-feet Dec. 26 (gage height, 0.61 foot).

1927-28. 1931-40: Maximum discharge, 42,000 second-feet Dec. 11, 1937 (gage height, 

12.02 feet), from rating curve extended above 10,000 second-feet on bas'is of velocityarea studies; minimum, 79 second-feet Oct. 13, 1934 (gage height, 0.54 foot).

Remarks.- Records excellent. No diversions. Small amount of water released occasionally 

from Hume Lake.

Cooperation.- Gage-height record collected in cooperation with San Joaquln Light & Power 

Corporation.

Discharge, in eeeond-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

246

327

388

364

380

405

466

430

422

357

376

357

338

320

306

290

274

261

249

234

226

214

209

206

214

203

203

206

198

190

183

Hov.

183

178

173

171

168

166

166

283

293

286

173

164

159

155

153

146

146

144

144

142

138

138

136

134

134

136

140

132

128

126

-

Dec.

126

130

132

128

128

126

136

134

134

132

157

159

136

132

132

136

134

128

126

128

121

117

114

123

119

112

126

126

128

132

132

Jan.

130

38S

445

676

384

290

376

650

748

1,190

1,990

1,340

877

678

580

526

492

461

430

405

384

372

353

345

649

1,760

1,050

825

724

678

656

Feb.

635

620

995

1,160

890

818

773

684

630

600

575

555

526

684

635

600

620

625

575

570

560

657

1,650

1,120

1,510

2,910

2,040

1,840

2,560

_

-

Month

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

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

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

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

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

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

Water year 1939-4o. .....................

Mar.

1,860

1,580

1,400

1,260

1,170

1,130

1,130

1,190

1,220

1,160

1,050

946

890

858

858

864

904

911

925

960

1,040

1,160

1,290

1,420

1,640

1,690

2,950

2,140

1,790

1,870

2,860

Apr.

2,360

1,900

1,700

1,560

1,400

1,390

1,380

1,370

1,480

1,620

1,900

2,200

2,650

3,150

3,240

2,560

2/290

2,530

2,990

3,240

3,560

3,980

4,240

4,400

4,040

3,480

2,S80

2,570

2,560

2,860

Secondfoot-days

9,042

4,935

4,024

304,746

£0^852 

28 f 617

42,116

77 480

182*860

152,350

40,948

11,380 

5,295

579,899

May

3,520

4,550

4,710

4,310

3,980

4,140

4,310

4,810

5,600

6,260

6,790

6,590

6,660

7,030

7,440

7,270

6,230

5,300

5,080

5,600

6,460

6,520

6,790

7,340

7,830

6,960

6,660

6,660

6,260

5,810

5,390

Mflxinnvii

466

293

159

3,890

1^990

2,910

2,950

7^830

6,460

3,240 

564

220

7,830

June

6,080

6,080

5,900

6,020

5,540

5,660

5,660

5,990

6,140

6,140

6,140

6,330

6,460

6,420

6,110

5,960

5,960

5,240

4,860

4,140

4,040

4,020

3,580

3,460

3,440

3,130

2,920

3,150

3,330

4,450

July

3,240

2,800

2,500

2,400

2,260

2,130

2,060

1,920

1,740

1,580

1,410

1,320

1,220

1,140

1,090

1,040

967

904

858

792

736

706

67S

694

754

754

700

678

662

625

590

Minimum

183

126

112

112

130

526

858

1,370

3,520 

2 920

590

220

138

112

Aug.

564

5S7

512

4S3

455

435

423

443

516

512

408

400

397

389

382

367

348

330

316

306

296

285

276

266

276

273

254

245

237

229

220

Mean

2Qg

164

130

835

673

987

1^359 

2,583

5

QQQ fOyy

5,078

1,321 

367

176

1,584

Sept.

220

218

215

215

213

215

200

190

182

180

174

172

170

170

170

167

167

165

163

163

167

220

192

149

145

141

138

138

138

138

Run-off in 

acre-feet

17,930

9,790

7,980

604,500

41,360 

56,760

83,540 

153,700

362,700

302,200

22^570

10,500

1,150,000

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
TULARE LAKE BASIN 1A3

Kings River at Pledra, 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 mile 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 1940. 

Average discharge.- 45 years, 2,311 second-feet. 

Extremes.- Maximum discharge during year, 14,800 second-feet Feb. 26 (gage height, 10.51

feet); minimum, 157 second-feet Dec. 27 (gage height, 0.92 foot).

1895-1940: 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, 19S4. 

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.- Results of nine discharge measurements and assistance in collecting gageheight record furnished by Kings River Water Association.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

0.9

1.0

1.1

1.2

154 

16S 

186 

206

1.6 

1.9 

2.2 

2.6

322

434

560

744

3.5 

4-0 

4.5 

5.0

1,240

1,620

2,050

2,540

5.5 3,120

6.0 

7.0 

8.0 

9.0

3,800

5,340

7,260

9,800

3.8 12,260

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

83

24

25

26

27

28

29

30

31

Oct.

302

332

659

582

547

556

730

696

641

600

551

520

487

454

426

394

371

346

325

308

291

276

267

261

273

279

264

273

270

258

244

HOT.

236

228

223

220

225

213

211

250

332

339

282

213

206

198

196

192

188

188

186

186

182

181

179

173

176

175

179

182

175

173

-

Dec.

172

170

173

173

172

172

170

181

182

188

256

322

223

194

188

190

190

168

182

181

179

168

170

168

172

165

164

168

170

181

188

Jan.

192

258

1,440

1,400

1,090

618

560

1,700

1,900

2,830

6,370

3,440

1,950

1,340

1,100

968

884

827

768

710

673

645

618

595

2,270

6,230

2,510

1,720

1,400

1,260

1,190

Feb.

1,130

1,230

2,540

3,250

1,920

1,620

1,560

1,320

1,180

1,110

1,070

1,030

973

1,520

1,460

1,170

1,140

1,170

1,080

1,040

1,020

1,030

5,110

2,740

3,430

8,160

5,230

4,410

6,340

_

-

Month

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

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

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

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

Jtaly... ...................................

Water year 1939-40. .....................

liar.

4,400

3,520

2,980

2,650

2,420

2,300

2,240

2,310

2,380

2,230

2,000

1,760

1,660

1,590

1,580

1,620

1,750

1,730

1,760

1,910

2,060

2,290

2,560

2,840

3,280

3,290

6,630

4,120

3,340

3,330

6,940

Apr.

4,650

3,700

3,250

3,000

2,760

2,580

2,650

2,640

2,&30

3,170

3,650

4,140

4,860

5,480

5,610

4,400

3,910

4,300

5,100

5,410

5,970

6,600

6,780

7,220

6,620

5,660

4,670

4,120

4,090

4,620

Secondfoot -days

12 783

6,286

5,760

462,856

49,456

66,033

85,470

134,440

288, 620 

188 440

46 647 

12^734

5,951

902,620

May

5,750

7,410

7,840

7,220

6,580

6,800

6,960

7,820

9,160

10,600

11,600

11,100

11,000

11,500

12,000

11,900

10,200

8,600

8,230

8,830

10,400

10,300

10,200

11,100

11,900

10,200

9,690

9,600

8,880

7,990

7,260

MffiJCJIlPiMfl

730

339

322

5,780

6,370

8,160

6,940

7 j £20

12,000

8,410

3, 800 

659

233

12,000

June

6,260

8,410

7,890

8,110

7,300

7,330

7,280

7,630

7,870

7,630

,570

,720

,870

,840

,410

7,110

7,060

6,240

5,770

5,040

4,750

4,780

4,330

4,090

4,000

3,730

3,460

3,480

3,660

4,820

July

3,800

3,180

2,840

2,680

2,540

2,410

2,310

2,180

2,000

1,800

1,630

1,490

1,390

1,290

1,230

1,160

1,110

1,030

978

925

868

822

792

773

817

847

812

773

758

725

687

Ifipjjpmi

244

173

164

160

i9£

973

1,580

2,580

5,750

3,460

687 

241

167

164

Aug.

659

622

591

560

529

503

487

478

560

569

508

434

434

426

418

406

390

371

349

336

319

308

302

288

285

295

285

270

261

250

241

Kean

412

£10

186

1,268

1,595

2)757

4,481

9,310

6, £81

1,505 

411

198

2,466

Sept.

233

233

230

230

230

230

228

218

206

202

196

192

190

188

188

188

190

186

188

186

184

202

225

194

173

170

168

167

167

167

-

Run-off in 

acre-feet

25,350

12,470

11,420

918,100

QQp 090

131 ^ 000

169,500

266,700 

572 500

373, 800

25^260

11,800

1,790,000

Peak discharge.- Feb. 26 (1 a.m.) 14,800 sec.-ft.j May 25 (5 a.m.) 14,000 sec.-ft.

9-292 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
L/* 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 1940. August 1921 to November 1922 at

site 1 mile upstream.

Average discharge.- 16 years (1921-32, 1933-35, 1937-40), 333 second-feet. 

Extremes.- Maximum discharge during year, 4,100 second-feet May 10 (gage height, 11.5

feet); minimum, 2.9 second-feet Dec. 22 (gage height, 2.30 feet).

1921-40: 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 good except those for period of no gage-height record, which are fair.

No diversion above station. 

Cooperation.- Water-stage recorder graph and results of 16 discharge measurements furnished

by San Joaquin Power Division, Pacific Gas & Electric Co., in connection with a Federal

Power Commission project.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

2.4 

2.6 

2.8 

3.0 

3.2

3.6 

6.4

10.6

17

28

4.0 

4.4

118

188

4.8 

5.2 

5.6 

6.0 

6.5

274

378

496

622

796

7.0

S.O

9.0

10.0

10.5

984

1,390

1,930

2,650

3,070

Discharge, in second-feet, water year October 1939 to September 1940

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.

23

84

101

86

86

91

112

104

92

80

73

66

57

50

45

40

34

30

27

26

23

22

21

22

23

20

26

26

23

22

20

NOV.

18

17

17

16

16

15

15

15

16

16

15

14

13

13

12

12

12

13

13

12

12

12

11

11

11

14

12

9.5

9.5

9.5

-

Dec.

11

12

11

11

10

15

14

13

12

13

44

15

14

14

15

14

13

13

13

12

10

8.5

11

9.6

8.5

11

11

12

13

15

14

Jan.

15

122

48

57

30

28

31

41

40

40

65

64

60

71

73

69

67

65

60

59

57

56

54

52 95

146

120

105

98

98

98

Feb.

91

85

92

90

85

92

80

73

73

79

81

74

75

80

73

72

72

69

68

72

73

75

91

92

95

1S1

131

178

178

-

Month

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

Karen. ....................................

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

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

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

Water year 1939-4 0......................

Mar.

134

142

152

141

151

173

202

243

241

204

160

134

129

142

165

210

212

214

257

306

358

439

514

558

649

593

a5PO

a480

a450

a490

a500

Apr.

a400

a350

a»10

a280

a250

264

306

356

466

600

707

889

1,120

1,200

984

680

700

995

1,190

1,260

1,430

1,500

1,620

1,600

1,330

954

742

717

862

1,170

Secondfoot-days

1,555

401.5

412.5

68,627.0

2 084

2)610

9,253

25 232

69,420

30 882

2, 587

163.9

144,948.9

May

1,600

1,980

1,910

1,720

1,670

1,750

1,880

2,180

2,530

2,860

2,860

2,790

2,710

2,810

2,810

2,550

2,250

2,190

2,230

2,490

2,620

2,300

2,350

2,590

2,410

2,140

2,140

2,000

1,800

1,620

1,680

Maximum

112

18

44

1,440

146

649

1,630

£ 1 860

1, 880 

331

22

6

2,860

June

1,880

1.760

1,660

1,570

1,450

1,490

1,470

1,490

1,400

1,340

1,370

1,400

1,400

1,300

1,190

1,130

1,020

870

742

632

590

542

466

421

384

329

298

298

401

589

July

321

246

208

180

162

144

129

115

100

87

79

71

65

60

59

55

53

48

43

40

36

34

30

3Q

30

30

30

28

27

24

23

jftp^llpmi

SO

9.5

8.5

4.8

15

68

129

1,600

0*

5.5

4.8

4.8

Aug.

22

20

19

17

15

15

14

14

13

13

12

12

12

11

11

11

10

9.5

9.5

9

8.5

8

7.5

7.5

7.5

7.5

7.5

7

6.5

6

5.5

Mean

50 «2

13.4

13.3

188

67 £

90-0

£98

841

2, £39

1 0£9

83.5

11 «2

5.46

396

Sept.

5.5

5.5

5.5

S.5

6

6

6

6

5.5

5.5

4.9

4.8

4.8

4.9

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

Run-off in 

acre-feet

3,080

796

818

136,100

4,130

5,180

18,350

50,050 

137, 700

61,250

5,130 

690

325

287,500

a No gage-height record; discharge computed on basis of records for station below Rancherla 

Creek.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
TULARE LAKE BASIN 175

North Fork of Kings River below Rancheria Creek, Calif.

Location.- Water-stage recorder, lat. 36°56', long. 119°00', In SE$ sec. 34, T. 11 S., R. 

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 1940 (revised).

Average discharge.- 10 years (1927-36, 1939-40), 349 second-feet.

Extremes.- Maximum discharge during year, 4,560 second-feet May 10 (gage height, 11.24 

feet); minimum, 12 second-feet Dec. 22.

1927-40: 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 good except those for period of no gage-height record, which are fair. 

No diversion above station.

Cooperation.- Water-stage recorder graph and results of 21 discharge measurements furnished by San Joaquin Power Division, Pacific Gas & Electric Co., in connection with a 

Federal Power Commission project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Oct.

33

113

128

108

101

110

137

127

111

93

86

78

68

60

53

48

43

39

36

33

31

30

28

30

34

30

31

34

33

30

29

Bov.

27

26

25

24

23

22

22

22

23

23

22

22

20

20

20

19

19

19

19

19

18

18

18

18

18

20

21

18

16

17

-

Dec.

18

19

19

18

18

19

23

21

21

21

68

30

23

22

22

22

22

21

20

20

18

16

t>16

t>16

16

19

19

20

21

23

23

Jan.

23

205

117

217

74

57

92

166

189

210

295

191

130

124

119

114

106

101

91

88

83

81

78

75

196

342

217

172

161

156

160

Feb.

151

142

234

194

154

163

143

126

120

123

127

117

113

130

119

112

116

111

103

108

112

147

244

174

262

312

293

351

409

-

-

Month

March, ....................................

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

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

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

Water year 1939-4O. .....................

Mar.

260

252

242

237

235

260

287

329

331

292

242

202

192

203

228

278

290

287

329

391

446

534

623

686

826

814

1,370

646

537

610

620

Apr.

485

405

385

366

338

364

410

449

554

702

830

970

1,250

1,350

1,220

830

f730

al.l'OO

al,350

al,500

al,600

al,750

a2,000

f 1,930

1,550

1,150

908

850

970

1,300

-

Secondfoot-days

1 945

618

674

82,619

4 430

s! 010

13 079

r»o i r*rt 78 j 170

31,616

3,275

699 

442

169,554

May

1,810

2,330

2,250

1,990

1,930

2,010

2,130

2,500

2,950

3,250

3,350

3,200

3,150

3,200

3,150

2,860

2,500

2,410

2,460

2,680

2,950

2,590

2,640

2,860

2,680

2,370

2,330

2,210

1,970

1,730

1,730

Masi^m

1 1^ r7 J.O (

27

68

1,580

342

409

1,370

2,000

3,350

2,010

346

37 

16

3,350

June

2,010

1,890

1,770

1,690

1,520

1,580

1,550

1,580

1,440

1,340

1,380

1,410

1,380

1,310

1,160

1,070

990

830

770

620

586

540

459

422

398

346

309

309

336

621

-

July

346

276

239

211

186

165

156

143

129

114

104

95

89

83

82

76

72

67

71

59

55

52

50

48

46

46

46

46

44

41

38

Minimum

28

16

16

11

23

103

192

338

1,730 

309

38

15 

13

13

Aug.

37

35

33

31

29

29

28

26

26

25

24

23

23

22

22

22

20

20

20

19

18

18

18

17

17

17

17

17

16

15

15

Mean

20*6 62 7

21^7

226

143

173

422

987

2 522 

1^054

106

22 «5

14.7

463

Sept.

15

15

15

16

16

16

16

16

15

15

14

14

14

15

15

15

15

15

16

15

14

14

14

14

14

13

14

14

14

14

-

aero foct

3 860

1

0«rt 

m £OU

1,340

163,900

8 j 790 

9 940

25 940

5&f 700

155,000

62,710

6,500

1,390 

877

336,300

No gage-height record; discharge computed on basis of r 

b Stage-discharge relation affected by Ice. 

f Discharge computed on basis of partly estimated gage-height record.

ecords for station at Cliff Camp.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeologlcal Survey
176 TULA.RE LAKE BASIN

Los Gatos Creek near Coalinga, Calif.

Location.- Water-stage recorder, lat. 36°13', long. 120°27', In SWi sec. 4, T. 20 S.,

 R,,14 E., at mouth of canyon, 3 miles downstream from Dlaz Creek and 7* miles northwest of Coalinga. Altitude of gage, about 1,000 feet, (from topographic map).

Drainage area.- 105 square miles.

Records available.- October 1931 to September 1940.

Extremes.- Maximum discharge recorded during year, 792 second-feet Feb. 25 (gage height,

 3.46 feet, well gage), from rating curve extended above 150 second-feot on basis of 

velocity-area study; minimum recorded, 0.2 second-foot parts of May and June, and 

July 1 to Sept. 30.

1931-40: Maximum discharge, 4,520 second-feet Feb. 11, 1938 (gage height, 6.23 

feet, well gage), from rating curve extended above 150 second-feet on basis of 

velocity-area and Intake-drawdown studies; no flow during parts of nearly every year.

Remarks.- Records poor. No diversion or regulation above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22

es

24

es

26 

27 

28 

29 

30 

31

Oct.

-0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3 

.3

.3 

.3- 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

HOT.

. 0.3

Dec.

0.4 

.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 

.4

Jan.

0 4 

4 

4 

4 

4

.4

1.3 

.9 

.9 

.8

.8 

.7 

.8 

.9 

.8

3.6 

4.8 

3.3 

1.7 

1.5 

9

Feb.

41 

26 

179 

43 

13

3.6 

2 

2 

1

1

.5 

.5 

1 

3 

3

2 

3 

3 

2 

2

1.8 

3.5 

63 

1.4 

197

85 

157 

190 

SOS

Month

Oot 

Hon 

Dec

0

Jan 

Pet 

Mar 

Apr 

«ay 

Jun 

Jul 

Av« 

Bep

«

alendar year

ater year

Peak discharge. -

sec. -ft. 

Note,- No or doub 

9; discharge Interp 

determined.

Mar.

57 

32 

24 

31 

19

19 

16 

14 

13 

12

11 

10 

9 

8.5 

8

7.5 

7 

6.5 

6.5 

6.5

6 

5.5 

5 

4.9 

4.9

4.9 

6.5 

6 

6 

7 

28

Apr.

14 

9.5 

9 

9 

9

7 

6.5 

6 

5.5 

4.9

4.6 

4.0 

3.5 

3.5 

3.5

3.8 

3.5 

3.3 

3.2

3.0

2.8 

3.8 

3.8 

3.8 

3.3

4.9 

4.6 

3.5 

3.5 

3.5

Seoondfoot-days

9.3 

9.0 

13.4

_

1,337.3 

393.3 

149.6 

19.7 

9.0

S,'.2 

6.0

-

May

1.6 

.3

.2 

1.0 

S.3

1.3 

1.4 

1.3 

1.0 

.9

.8 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.5 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.5 

.5

Ttffly<Tflmq

0.3 

.4

-

308 

57 

14 

2.3

.2 

.2 

.2

-

June

> 0.3

July

0.2 

.2 

,2 

.2 

,2

.2 

,2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

,2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

Aug.

0.3 

.2 

-2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.2 

.2 

.3 

.3

.3 

.3 

.3 

.3 

.2 

,2

Sept.

0.2 

.S 

.2 

.2 

.2

.3 

.3 

.3 

.3 

.2

.2 

.3 

.3 

.3 

.2

.2

.2 

.2

.2 

.2

.2 

.3 

.2 

.3 

.3

.3 

.3 

.2 

.3 

.3

MinHnu* Mean ^"J/^

0.3 0.30 18 

.3 18 

.4 .40 25

-

.5 42.7 2,450 

4.9 12.7 778 

2.5 4.99 297 

.2 .64 39 

.3 18 

.2 .20 13 

.2 .20 12 

.2 .20 12

.

Feb. 3 (1 p.m.) 505 sec. -ft.; Feb. 35 (7 p.m.) 793 sec. -ft.; Feb. 28 (13 m.) 676

tful gage-height record Oct. 31 to Dec. 2, Jan. 7-16, Feb. 7-20, June 1 to July 

olated or estimated except storm period Jan. 7-16 for which no discharge was
SAN JOAQUIN RIVER BASIN 

SAN JOAQUIN RIVER MAIN STEM

177

San Joaquln River above Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°15'00", long. 119 0 19'10", in NWi 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 1940.

Average discharge.- 15 years (1925-40, period since diversion began through Ward tunnel), 

1,265 second-reet.

Extremes.- Maximum discharge during year, 9,350 second-feet Mar. 27 (gage height, 15.08 

reetj; minimum, 88 second-feet Dec. 26 (gage height, 6.38 feet).

1922-40: 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 good. Flow regulated by large diversions and Florence Lake (p. 181 ).

Cooperation.- Water-stage recorder graph and results of 13 discharge measurements furnished by Southern California Edison Co. in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

?,

3

4

5

6

7

8

9

10

11

18

13

14

15

16

17

1R

19

20

SI82

S3

84

85

8fi

27

88

29

30

31

Oct.

159

378

558

450

469

582

627

534

503

428

424

431

424

413

382

350

299

260

234

214

201

192

185

188

210

216

212 243'

243

223

204

HOT.

192

180

171

162

156

150

142

139

139

138

132

130

124

124

120

117

116

116

116

116

113

112

112

108

106

112

119

111

108

108

Dec.

108

116

120

117

114

112

120

123

120

133

243

182

144

139

132

134

132

126

124

124

119

105

96

109

105

97

114

112

116

120

127

Jan.

134

705

S45

979

574

406

503

1,290

1,680

1,990

2,180

1,740

1,030

765

640

570

530

499

457

431

406

392

382

375

887

2,370

1,510

1,040

896

830

S30

Feb.

S70

770

1,080

1,320

962

896

880

740

676

644

654

619

578

685

649

586

598

632

570

562

562

636

1,540

1,150

1,290

1,870

2,680

2,510

2,750

_

-

Month

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

v«

Water year 1939-4

Map.

1,320

1,550

1,420

1,260

1,170

1,170

1,240

1,410

1,520

1,380

1,180

1,020

962

957

1,010

1,100

1,220

1,230

1,280

1,520

1,670

1,910

2,200

2,390

2,910

3,020

6,390

3,460

2,770

3,770

4,640

Apr.

3,110

2,460

2,180

2,040

1,850

1,810

1,970

1,930

2,160

2,460

2,800

3,210

3,820

4,280

3,960

2,760

2,480

3,010

3,580

3,920

4,260

4,680

4,880

4,830

4,060

3,170

. 2,590

2,430

2,510

2,890

-

Seoondfoot-days

10,436

3,C89

3,883

233,708

29,959

3,425

593,332

May

3,850

5,020

5,230

4,740

4, ISO

4,460

4,460

5,160

6,210

7,150

7,620

7,350

7,220

7,150

7,130

6,930

6,740

6,290

5,940

6,100

6,930

6,890

6,740

7,040

7,150

5,820

5,760

5,860

5,230

4,500

4,070

Marf^

627

192

243

3,070

2,750

140

7,620

June

5,040

5,140

4,630

4,770

4,260

4,510

4,650

6,140

6,960

6,670

6,440

6,630

6,980

6,270

6,270

6,520

5,640

5,600

4,930

4,220

3,890

3,900

3,330

2,930

3,020

2,540

2,340

2,460

2,420

3,710

-

July

2,540

2,410

2,060

1,950

1,820

1,480

1,620

1,340

1,110

830

730

676

632

602

566

562

534

491

465

435

406

389

379

382

438

424

3S9

375

366

340

321

Minimum

159

106

96

77

562

93

93

Aug.

SOS

296

278

266

257

250

243

240

238

238

238

236

234

227

212

201

192

183

175

170

168

163

157

156

157

152

148

145

140

140

Mean

337

130

125

640

899

1,033

114

1,621

Sept.

140

139

136

136

138

134

136

130

123

120

117

116

114

113

113

113

113

112

109

108

105

101

99

97

96

94

93

93

93

94

Run-off in 

acre-feet

20,700

7,710

7,700

463,500

59,420

6,790

1,177,000

Peafc di a charge.- liar. 27 (SiSO a.m.) 9,350 see.-ft.; May 11 (1 a.m.) 8,870 sec.-ft.
178 SAN JOAQUIN RIVER MAIN STEM

San Joaquin River below Friant, Calif.

Location.- Water-stage recorder, lat: 36°59'04", long. 119°43'24", In SWi sec. 7, T. 11 

S., R. 21 E., half a mile west of Friant, li miles downstream from Cottonwood Creek, 

and 2 miles downstream from Friant dam, now under construction. Datum of gage is 

294.00 feet above mean sea level.

Drainage area.- 1,675 square miles.

Records available.- October 1938 to September 1940. October 1907 to December 1913 at 

site 4i miles upstream. December 1913 to September 1938 at site 2i miles upstream.

Average discharge.- 33 years (1907-40), 2,316 second-feet.

Extremes.- Maximum discharge during year, 13,400 second-feet Mar. 27 (gage height, 12.2 

feet;; minimum, 38 second-feet July 29 (regulated).

1907-40: Maximum discharge. 77,200 second-feet Dec. 11, 1937 (gage height, 23.8 

feet, at former site and datum); minimum, that of July 29, 1940.

Remarks.- Records excellent. Flow regulated by four reservoirs and six power plants 

above station. See records for Florence Lake, Huntington Lake, and Shaver Lake. 

Storage in Crane Valley Reservoir was 22,500 acre-feet Sept. 30, 1939, and 25,600 

acre-feet Sept. 30, 1940.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet)

2.6 

2.8 

3.0 

3.3

158

212

275

385

3.6 

4.0 

4.5 

5.0

530

760

1,120

1,530

5.5 

6.0 

6.5 

7.0

2,000

2,540

3,120

3,740

7.5

8.0

9.0

10.0

4,420

5,130

6,720

8,500

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

Z

3

4

5

6

7

8

9

10

11

18

13

14

IS

16

17

18

19

80

21

22

ZZ

24

85

28

87

88

29

SO

31

Oct.

640

536

1,120

968

904

1,010

1,300

858

848

992

890

834

939

862

730

778

760

790

808

772

760

712

712

766

772

925

790

Y78

602

369

718

HOT.

772

911

1,540

1,220

1,110

530

712

700

820

688

700

652

574

682

658

618

450

381

306

296

345

390

394

510

706

568

192

530

736

742

-

Dec.

766

712

658

174

394

590

525

580

580

558

421

470

505

563

568

612

490

558

552

430

525

624

706

530

153

252

206

465

515

546

361

Jan.

345

485

1,790

1,220

1,330

784

712

1,940

2,630

3,780

6,720

4,040

2,520

1,260

1,130

1,170

960

984

883

841

706

520

876

855

1,880

6,960

3,200

2,120

1,670

1,760

1,680

Feb.

1,620

1,640

1,890

3,010

2,110

1,850

2,030

1,760

1,550

1,490

1,220

1,450

1,300

1,780

1,840

1,660

1,610

1,420

1,550

1,590

1,570

1,520

3,050

3,140

2,340

5,110

6,110

6,390

7,340

_

-

Month

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

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

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

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

Water year 1939-40. .....................

Mar.

5,370

3,620

3,260

2,630

2,620

2,520

2,520

2,450

2,550

2,460

2,250

2,240

2,180

1,840

1,930

2,130

2,050

2,000

2,330

2,420

2,750

2,750

2,980

3,190

3,870

4,170

8,200

6,080

4,690

4,110

8,810

Apr.

5,960

4,500

3,820

3,460

3,340

2,980

2,750

2,900

3,260

3,380

3,710

4,170

4,590

4,970

4,950

4,340

3,680

3,910

4,480

4,710

4,770

5,520

5,790

5,960

5,340

4,690

3,740

3,140

3,180

3,680

Secondfoot-days

25,240

19,433

15,589

493,053

57,731

70,990

102,970

125,670

205,160

166,910

57, 714

42,810

32,070

922,287

May

4,500

5,630

6,220

5,710

4,910

5,140

5,440

5,820

6,800

7,800

8,310

7,720

7,760

7,740

7,740

7,670

7,280

7,180

6,350

6,280

7,320

7,560

7,250

7,710

7,990

6,580

5,900

6,600

6,400

5,120

4,730

Maximum

1,300

1,540

766

3,790

6,960

7,340

8,810

5,960

8,310

7,330

3,800

1,500

1,360

8,810

June

5,420

5,900

5,500

5,660

5,340

5,380

5,580

6,250

7,160

7,060

7,300

7,330

7,330

7,30.0

7,060

6,670

6,940

6,310

5,900

5,420

4,980

4,910

4,110

3,990

3,990

3,780

3,430

3,530

3,460

3,920

July

3,800

3,430

3,190

2,830

2,460

2,660

2,400

2,240

2,260

2,100

1,920

1,820

1,680

1,770

1,670

1,460

1,440

1,530

1,220

960

718

918

1,560

1,550

1,500

1,570

1,660

1,620

658

1,530

1,590

IH^imnn

369

192

153

153

345

1,220

1,840

2,750

4,500

3,430

658

1,180

694

153

Aug.

1,500

1,470

1,470

1,180

1,420

1,430

1,420

1,480

1,410

1,460

1,370

1,320

1,410

1,400

1,410

1,440

1,260

1,300

1,280

1,440

1,340

1,420

1,420

1,260

1,260

1,360

1,420

1,410

1,390

1,360

1,300

Mean

814

648

503

1,351

1,862

2,448

3,322

4,189

6,618

5,564

1,86S

1,381

1,069

2,520

Sept.

1,090

1,230

1,360

1,330

1,280

1,250

1,320

1,180

1,130

1,340

1,240

1,100

1,100

992

754

778

960

1,080

1,020

1,040

848

694

798

992

1,040

1,160

1,090

1,100

814

960

-

Run-off in 

acre-feet

50,060

38,540

30,920

977,900

114,500

140,800

204,200

249,300

406,900

331 . 100

\\',MO

84,910

63,610

1,829,000
SAN JOAQUIN RIVER MAIN STEM 

San Joaquin River near Newman, Calif.

179

Location.- Water-stage recorder, lat. 37°21'02", long. 120°58'34", in SWt sec. 3, T. 7 

S., R. 9 E., at bridge on Hills Ferry road, 300 feet downstream from Merced River 

and 3i 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 1940. Prior to Oct. 1, 1937, flow that bypassed station at discharges above about 9,000 second-feet not included in records.

Average discharge.- 28 years, 2,416 second-feet.

Extremes.- Maximum discharge during year, 11,300 second-feet Mar. 7 (gage height, 14.74 

feet); minimum, 166 second-feet Nov. 9 (gage height, 0.98 foot).

1912-40: Maximum discharge, 33,000 second-feet Mar. 7, 1938 (gage height, 18.50 

feet); minimum, 15 second-feet Aug. 9, 10, 1924.

Remarks.- Records good Oct. 1 to Mar. 7, fair Mar. 8 to Sept. 30. Practically entire 

flow of river and tributaries diverted during Irrigation season, low flows comprise 

mainly return water.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

S

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

25

24

25

26

27

28

29

SO

31

Oct.

304

302

297

284

276

268

265

271

263

235

220

223

211

199

199

189

199

211

211

211

213

206

187

182

194

196

196

192

201

192

204

Hov.

225

235

216

201

189

180

175

172

170

170

170

170

170

172

194

184

180

177

180

180

182

187

189

192

196

204

aoe

208

213

216

-

Dec.

218

218

218

220

228

250

333

398

364

330

330

362

406

442

492

512

492

478

478

492

506

512

509

526

548

545

545

562

559

542

508

Jan.

500

562

617

659

653

644

686

844

1,010

1,190

1,700

2,770

3,210

3,610

3,870

4,140

4,250

4,210

3,750

3,010

2,440

2,090

1,880

1,730

1,620

1,520

2,040

2,450

3,020

3,510

3,920

Feb.

4,270

4,550

4,940

4,890

4,850

4,830

5,010

5,240

5,330

5,410

5,350

5,160

4,780

4,350

4,320

4,350

4,230

4,190

4,230

4,230

4,150

3,940

3,350

3,170

3,260

3,400

3,930

5,320

6,440

-

Month

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

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

Mav. ............

Water year 1939-40......................

Mar.

7,540

8,690

9,480

10,300

10,800

11,100

11,200

11,000

10,500

9,900

9,160

8,360

7,560

6,840

6,090

5,480

4,920

4,350

3,830

3,490

3,270

3,040

2,560

2,300

2,300

2,670

3,680

5,110

6,560

7,440

8,160

Apr.

9,020

9,820

10,500

10,900

10,800

10,500

10,200

9,220

7,940

6,750

5,750

5,090

5,000

5,160

5,260

5,490

5,800

5,860

5,520

4,640

4,080

4,390

4,630

4,840

5,300

5,650

5,980

5,520

4,810

4,620

-

Secondfoot-days

7,001

5,705

13,121

257,006

68,105

131,470

207,680

199,040

214,990

163,510

27,989

11,504

11,613

1,061,628

May

4,430

3,830

3,170

3,240

4,310

4,870

5,120

5,350

5,560

5,650

5,590

5,700

6,400

6,880

7,200

7,490

7,780

8,120

8,420

8,720

9,000

9,200

9,200

8,470

7,930

8,530

9,180

9,250

8,940

8,760

8,700

Maximum

304

235

562

3,240

4,250

6,440

11,200

10,900

9,250

8,470

1,900

428

417

11,200

June

8,470

8,120

8,100

8,200

7,980

7,620

7,000

6,260

5,900

5,840

5,730

5,440

5,160

5,020

5,090

5,160

5,190

5,190

5,170

5,110

4,980

4,860

4,750

4,600

4,240

3,670

3,180

2,800

2,480

2,200

-

July

1,900

1,780

1,630

1,560

1,540

1,470

1,360

1,160

962

858

770

680

620

608

602

572

562

550

1,130

1,240

946

822

728

632

538

498

480

472

472

456

451

m^imim

182

170

218

170

500

3,170

2,300

4,080

3,170

2,200

451

340

349

170

Aug.

428

419

404

408

415

395

382

375

375

374

378

375

359

356

354

351

343

a340

a340

a340

a345

a345

a345

346

362

374

361

375

390

380

370

Mean

226

190

423

704

2,197

4,533

6,696

6,635

6,935

5,450

903

371

387

2,901

Sept.

378

395

411

410

402

378

377

385

417

406

395

382

364

364

349

364

388

393

393

385

393

388

411

380

380

372

375

388

390

403

-

Rur-off in 

acre-feet

13,890

11,320

26,030

509 , 700

135,100

260,800

411,700

394,800

426,400

324,300

55,520

22,820

23,030

2,106,000

a No gage-height record; discharge interpolated.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
180 SAN JOAQUIN RIVER MAIN STEM

San_Joaquin River near Vernalis, 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 34 miles 

northeast of Vernalis, San Joaquin County. Altitude of gage, about 10 feet (from topographic map).

Drainage area.- 14,010 square miles.

Records only).available.- July 1922 to September 1940 (1922-23 and 1925-29, low-water records 

 

Average discharge.- 11 years (1929-40), 4,965 second-feet.

Extremes.- Maximum discharge during year, 29,700 second-feet Apr. 2 (gage height, 25.37 

feet); minimum, 972 second-feet Aug. 11.

1922-40: Maximum discharge recorded, 51,200 second-feet Mar. 16, 1938 (gage height, 

26.64 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 all streams in San Joaquin River Basin 

is diverted during irrigation season, low flows comprise mainly return water.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

18

13

14

15

16

17

18

19

80

81

22

83

84

25

86

87

88

29

30

31

Oct.

1,500

1,670

1,720

1,850

1,840

1,770

1,720

1,680

1,670

1,640

1,580

1,520

1,490

1,470

1,470

1,470

1,330

1,270

1,290

1,240

1,220

1,260

1,260

1,260

1,270

1,360

1,420

1,440

1,440

1,450

1,450

HOT.

1,490

1,640

1,700

1,500

1,430

1,420

1,400

1,420

1,410

1,390

1,380

1,400

1,410

1,380

1,410

1,450

1,450

1,440

1,420

1,420

1,410

1,420

1,430

1,420

1,410

1,410

1,410

1,410

1,410

1,380

-

Dec.

,380

,370

,380

,360

,350

1,380

1,470

1,530

1,620

1,630

1,5SO

1,500

1,490

1,580

1,660

1,700

1,740

1,730

1,680

1,660

1,710

1,740

1,760

1,720

1,670

1,650

1,630

1,620

1,620

1,630

1,640

Jan.

1,650

1,670

1,620

1,650

1,780

2,060

2,130

2,200

2,380

3,090

4,460

6,040

6,450

5,580

5,350

5,430

5,540

5,630

5,690

5,580

5,170

4,680

4,320

4,100

3,990

4,020

5,420

5,500

4,970

4,890

5,000

Feb.

5,260

5,530

5,S10

6,220

6,930

6,680

6,510

6,930

7,500

7,690

7,710

7,990

8,100

8,050

8,660

10,100

9,500

8,610

8,640

8,590

9,260

7,860

7,500

7,530

9,820

10,900

11,200

13,800

20,700

-

Month

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

Mav. .... .....

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

Water year 1939-40. .....................

Mar.

26,100

24,800

22,600

20,400

18,600

17,700

17,100

16,800

16,700

16,500

16,200

15,700

14,800

13,700

12,700

11,800

10,900

10,300

9,750

9,350

8,840

8,490

8,110

7,760

7,780

8,050

9,660

13,400

19,100

20,500

20,700

Apr.

26,800

29,400

27,300

24,600

22,500

21,300

20,200

13,900

17,900

17,400

14,800

15,500

14,500

14,000

13,700

13,700

13,800

13,400

12,800

12,500

12,400

12,000

11,700

12,000

12,500

12,800

13,000

12,700

11,800

10,700

-

Seoondfoot-days

46,020

43,070

49 , 180

688,144

128, 060

248 580

454^890

486,600

443 300

325,490

61^840

36 1 766

50,640

2,374,436

May

9,950

9,520

9,630

10,600

10,600

11,300

11,200

11,100

11,000

11,400

12,200

13,300

13,800

14,000

14,600

15,800

16,200

16,200

16,300

16,400

16,200

15,900

15,900

16,000

16,200

16,300

17,200

18,100

18,600

18,800

18,600

Ma*I*u»

1,850

1,700

1,760

5,550

6,450

20,700

26,100

29,400

17 900

3,650

1,420

1,790

29,400

June

17,900

17,200

16,700

16,200

15,800

15,300

14,200

13,300

12,500

11,800

11,800

11,600

11,700

11,500

11,400

11,300

11,200

10,700

10,400

J.0,200

9,480

8,100

7,470

7,110

6,500

5,940

5,220

4,690

4,210

3,870

-

July

3,650

3,360

3,080

3,000

2,960

2,740

2,580

2,430

2,290

2,130

1,990

1,900

1,800

1,690

1,670

1,650

1,590

1,520

1,460

1,680

1,990

1,900

1,720

1,580

1,490

1,350

1,320

1,310

1,380

1,360

1,270

Tmyi3imini

1,220

1,380

1,350

545

1,620

5,260

7,760

10,700

9,520

3^870

1,270

996

1,400

996

Aug.

1,190

1,160

1,090

1,100

1,140

1,150

1,120

1,130

1,050

996

1,000

1,060

1,080

1,100

1,090

1,100

1,140

1,160

1,220

1,250

1,220

1,850

1,250

1,270

1,290

1,420

1,380

1,320

al,330

hi, 340

al,370

Mean

1,485

1,436

1,586

1,885

4,131

8,572

14,670

16,280

14,300

10,850

1,995

1, 186

1,688

6,486

Sept.

hi, 400

al,500

hi, 600

al,600

hi, 600

al,610

hi, 620

al,680

hi, 740

al,690

hi, 640

al,660

hi, 670

f 1,680

1,730

1,790

1,780

1,780

f 1,750

al,740

f 1,730

1,750

1,760

1,780

1,750

1,710

1,670

1,730

1,780

1,720

-

Run-off in 

acre-feet

91,280

85,430

97,550

1,365,000

254,000

493,100

902,300

965,200

879,300

645,600

122 700

72^920

100,400

4,710,000

a No gage-height record; discharge Interpolated.

f Fragmentary gage-height record; discharge computed from partly-estimated gage heights.

h Discharge computed from staff-gage reading.

9-238 February

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 181 

Florence Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°17', long. 118°58', In SE-? sec. 36, T. 7 S., 

R. 27 E., in gatehouse of Ward tunnel Intake, near dam on South Pork of San Joaquin 

River, 16 miles northeast of town of Big Creek. Datum of gage is at mean sea level.

Drainage area.- 171 square miles.

Records available.- November 1925 to September 1940.

Extremes.- Maximum contents during year, 64,700 acre-feet June 30 (elevation, 7,327.8 

feet); minimum, 177 acre-feet Jan. 24 (elevation, 7,223.7 feet).

1925-40: Maximum contents, 65,700 acre-feet July 16, 1935 (elevation, 7,328.8 

feet); no available storage Oct. 2-4, 1926, Nov. 30 to Dec. 2, 1927.

Remarks.- Lake is formed by multiple-arch dam; storage began In April 1925. Usable capaclty, 64,400 acre-feet betv;een elevations 7,220.9 feet (throat of Venturi 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 Big Creek plants. Records show contents at midnight, all of which is available for diversion.

Cooperation.- Record of contents furnished by Southern California Edison Co. In connectlon with a Federal Power Commission project.

Qontents, In acre-feet, water year October 1939 to September 1940

D«y

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

51

Oct.

61,500

61,700

61,900

62,100

62,300

62,600

62,800

63,000

63,200

63,100

62,900

62,800

62,700

62,600

62,400

62,200

62,100

62,000

62,000

61,900

61,900

61,900

61,800

61,800

61,700

61,700

61,700

61,800

61,900

61,900

62,000

Nor.

62,000

62,100

62,100

62,200

62,300

62,300

62,300

62,400

62,400

62,500

62,500

62,600

62,600

62,600

62,700

62,700

62,700

62,700

62,800

62,800

62,800

62,900

62,900

62,900

62,600

62,600

61,900

61,100

60,200

59,400

-

Dec.

58,600

58,100

57,600

56,600

55,300

53,900

52,600

51,300

49,700

47,700

46,300

45,700

45,100

44,500

43,900

43,100

41,100

39,200

37,300

35,300

33,300

31,400

29,500

27,600

25,700

23,800

21,800

19,900

18,000

16,000

14,100

Jan.

12,200

10, 500

8,750

6,980

5,260

3,600

2,260

1,240

770

513

450

335

244

239

232

226

218

206

196

190

186

183

182

177

239

265

254

240

231

227

20.9

Feb.

211

207

212

211

212

210

204

196

195

193

189

185

182

183

188

194

187

183

189

186

181

183

196

196

213

223

242

254

222

-

Mar.

292

316

298

274

265

270

301

328

314

282

251

233

223

224

237

261

259

256

269

294

325

362

405

434

477

514

530

436

386

379

405

Apr.

392

366

346

322

322

346

366

381

424

480

551

643

767

787

685

572

571

685

762

832

929

989

1,080

1,190

1,120

948

787

710

711

806

-

May

1,020

1,590

2,060

2,910

4,290

5,500

5,460

5,650

6,340

7,470

8,720

9,780

10,900

12,200

13,600

15,000

15,900

16,500

17,000

18,300

20,500

22,600

25,000

28,100

31,300

34,100

36,200

38,300

40,800

43,000

45,300

June

48,400

51,300

53,500

55,800

57,900

59,800

61,100

61,300

61,400

61,500

61,600

62,700

63,000

63,200

63,000

63,000

63,700

63,500

62,900

62,600

62,400

62,600

63,300

63,800

63,700

63,500

63,400

63,700

64,500

64,700

-

July

64,500

64,300

64,300

64,600

64,500

64,400

64,500

64,400

64,300

64,200

64,300

64,400

64,400

64,300

64,300

64,300

64,300

64,300

64,300

64,400

64,400

64,200

64,000

63,900

63,800

63,800

63,800

63,800

63,800

63,600

63,500

Aug.

63,200

62,800

62,500

62,000

61,500

60,900

60,300

59,700

59,100

58,600

58,000

57,400

56,800

56,300

55,700

55,200

54,700

54,100

53,500

52,800

52,000

51,100

50,200

49,400

48,500

47,600

46,700

45,700

44,700

43,700

42,700

Sept.

41,700

40,700

39,800

39,000

37,900

36,900

35,800

34,800

33,800

32,700

31,700

30,700

29,700

28,600

27,600

26,600

85,600

24,600

23,600

22,700

21,700

20,600

19,500

18,500

17,500

16,500

15,400

14,300

13,300

12,200

-

Monthly elevation and contents, water year October 1939 to September 1940

Date

Sept. 30. ...................

Klevation 

(feet)

7,261.0

-

Contents 

(acre-feet)

12,200

-

Change In contents 

during month 

(acre-feet)

_

-30,500

-49,200
182 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

South Fork of San Joaquln River near Florence Lake, Calif.

Location.- Water-stage recorder, lat. 37°16'20", long. 118°57'50", In SEi sec. 36, T. 7 

S., R. 27 E., Just downstream from spillway of Florence Lake dam, 6 miles upstream 

from Bear Creek. Altitude of gage, about 7,200 feet (from topographic map).

Drainage area.- 171 square miles.

Records available.- December 1921 to September 1940.

Average discharge.- 17 years (1922-31, 1932-40), 274'second-feet, combined flow of South 

Fork of San Joaquln River and Ward tunne.l at Intake.

Extremes.- Maximum discharge during year, 4,320 second-feet June 6 (gage height, 15.38 

feet;; minimum, 0.1 second-foot, Dec. 31, May 2-15, 18-25.

1921-40: Maximum discharge, that of June 6, 1940; practically no flow at times In 

1924, 1925, and each year of period 1935-37.

Remarks.- Records good. Flow regulated by Florence Lake (p. ) and diversion Into Ward 

tunnel (p. ).

Cooperation.- Water-stage recorder graph and results of 21 discharge measurements

furnished by Southern California Edison Co. In connection with a Federal Power Commission project.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet)

7.71 

8.0 

8.2 

8.4

0.0

.7

1.8

4.4

8.6 

8.B 

9.0 

9.4

11.5

28

54

117

9.8

10.2

10.6

11.0

190

286

420

590

11.5

12.0

12.5

13.0

850

1,140

1,490

1,850

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

IS 

13

14 

IS

16 

17 

18 

19 

SO

21 

S2 

S3 

24 

25

26 

27 

28 

29 

30 

31

Oot.

1.2 

1.2

1.1 

1.1

1.4 

1.3 

1.3 

1.4 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.2 

1.2 

1.2

1.2 

l.S 

1.2 

1.2 

1.1

1.1 

1.1 

1.1 

1.1 

1.1 

1.1

HOT.

1.1 

1.1

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

l.S 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.1 

1.1 

1.1

Dec.

1.1 

1.0

1.0 

.9

.9 

.9 

.S 

.7 

.6

.4 

.4 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.1

Jan.

0.2 

.8

.4 

.2

.2 

.2 

.2 

.2 

.2

.3 

.2 

18 

4.0 

2.2

2.1 

2.0 

1.9 

1.9 

l.S

1.7 

1.7 

1.7 

1.7 

2.8

3.1 

2.2 

2.1 

2.0 

2.0 

1.9

Feb.

1.8 

1.5

.9 

.3

. 5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.5 

.5

.5

.6 

.7 

.8 

.6

Month

Oot 

Hoi 

Dec

C

Jan 

Fel 

Hai 

API 

Jlaj 

Jux 

Jul

£"Sej

V

nary

 UBt..... ...............................

ater year 1939-4

Mar.

0.6 

.8

0

.7 

.7

.8 

.9 

1.0 

.9 

.7

.6 

.5 

.5 

.6 

.6

.8 

.6 

.6 

.7 

.7

.8 

.9 

1.1 

1.2 

1.7

1.9 

2.3 

1.4 

1.1 

1.2 

1.0

Apr.

0.9 

.9

.7 

.8

.8 

.7 

.7 

.S 

.9

.8 

.9

55 

31

2.3 

.7 

.8 

1.9 

.3

.3 

.3 

.2 

.2 

.2

.3 

.2 

.2 

.2 

.2

Secondfoot-days

37.6 

35.4 

14.6

350.9

60.1 

17.1 

28.7 

105.8 

4.1 

16,481.3 

1,527.4 

25.3 

32.3

18,369.7

Hay

0.2 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2 

.3

Maximum

1.4 

1.2 

1.1

17

18 

1.8 

2.3 

55 

.3 

1,530 

550 

1.6 

l.S

1,530

June

0.2 

.5

.7 

.8

150 

636 

1,530 

1,530 

1,360

1,090 

717 

1,060 

1,030 

1,290

1,390 

660 

1,030 

949 

513

275 

280 

223 

168 

 131

.8 

.7 

.S 

84 

3SO

July

207 

71

13

38

550 

393 

221 

4.9 

1.1

1.0 

1.2 

1.7 

2.4 

2.0

l.S 

1.0 

1.0 

2.1 

2.0

1.7 

1.3 

1.1 

.9 

.9

.9 

.9 

.9 

.9 

.9 

.9

Minimum

1.1 

1.1 

.1

.1

.2 

.4 

.5 

.2 

.1 

.2 

.9 

.5 

.9

.1

Aug.

0.8 

.8

.7 

.7

.7 

.7 

.7 

.7 

.6

.6 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.7 

.6

.6 

.5 

1.1 

1.6 

1.3

1.2 

1.2 

1.2 

1.2 

1.2 

1.2

Mean

1.21 

1.18 

.47

.96

1.94 

.59 

.93 

3.53 

.13 

549 

49.3 

.82 

1.08

50.2

Sept.

1.2 

1.2

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

.9

Run-off in 

acre-feet

75 

70 

29

696

119 

34 

57 

210 

8.1 

32,690 

3,030 

50 

64

36,440

9-2S2 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 183

Ward tunnel at Intake, Calif.

Location.- Water-stage recorders, concrete control, and venturi 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 1940.

Average discharge.- 14 years (1925-31, 1932-40), 234 second-feet.

Extremes.- Maximum daily discharge during year, 1,110 second-feet June 21; minimum daily, 

0.2 second-foot May 5.

1925-40: Maximum daily discharge, 1,990 second-feet Apr. 30, 1926; no flow at 

times.

Remarks.- Records good. 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 and rating tables of control and venturi meter 

furnished by Southern California Edison Co. in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1939 to September

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

1.4 

1.4 

1.4 

1.4 

1.5

1.5 

1.5 

1.5 

43 

149

149 

147 

147 

147 

147

147 

147 

98 

62 

62

62 

62 

62 

62 

63

63 

35 

1.5 

1.4 

1.4 

1.5

HOT.

1.5 

1.5 

1.5 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4

1.4

1.4 

1.4 

1.4 

26 

135

17 

329 

464 

429 

393

Dec.

415 

303 

264 

488 

697

693 

690 

683 

789 

1,020

745 

323 

323 

323 

323

462 

996 

983 

1,000 

1,010

998 

988 

975 

963 

950

1,000 

1,020 

1,000 

974 

1,010 

1,000

Jan.

976 

940 

938 

960 

885

804 

709 

593 

328 

234

127 

164 

117 

108 

104

102 

103 

95 

85 

79

73 

71 

68 

64 

75

124 

127 

119 

111 

105 

103

Feb.

94 

88 

90 

91 

91

92 

86 

82 

80 

82

78 

75 

73 

73 

74

76 

80 

76 

70 

74

74 

73 

79 

88 

90

108 

116 

130 

119

Month

Dot 

Hoi

Deo

C

Jan 

Pet 

Mar

Apr

Jin 

Jul

toe

Bep

V

alendar Tear 193 3 ......................

ater year 1939-4

Mar.

124 

173 

170 

154 

142

139 

152 

180 

188 

169

141 

116 

107 

107 

115

126 

135 

133 

133

150

170 

197 

221 

245 

272

278 

344 

286 

236 

221 

222

Apr.

236 

213 

201 

186 

173

17S 

201 

204 

226 

256

300 

355 

427 

493 

465

371 

316 

371 

457 

476

518 

570 

584 

602 

597

532 

446 

387 

362 

394

Secondfoot-dayB

1,871.4 

1,825.5 

23,408

79,990.8

9,492 

2,502 

5,546 

11,097 

18,218.2 

19,789.2 

12,714 

14,080 

16.534

137,077.3

May

484 

503 

526 

209 

.2

J7 

660

736 

754 

792

834 

865 

888 

915 

941

964 

982 

990 

997 

822

536 

551 

427 

267 

278

284 

652 

557 

264 

266 

177

MflXlHTUTl

149 

464 

1,020

1,210

976 

130 

344 

602 

997 

1,110 

1,060 

579 

577

1,110

June

1.2 

66 

425 

428 

432

436 

292 

65 

143 

346

615 

721 

876 

871 

682

546 

895 

713 

854 

934

1,110 

917 

585 

767 

1,020

1,090 

994 

952 

953 

1,060

July

1,060 

1,030 

925 

720 

776

278 

261 

440 

631 

568

439 

387 

398 

396 

373

328 

310 

255 

201 

201

222 

266 

294 

294 

283

230 

201 

201 

216 

266 

264

Minimum

1.4 

1.4 

264

.5

64 

73 

107 

173 

.2 

1.2 

201 

291 

484

.2

Aug.

291 

349 

348 

360 

391

423 

437 

436 

434 

432

430 

430 

428 

428 

410

398 

396 

394 

392 

450

528 

528 

528 

524 

530

549 

544 

568 

568 

579 

577

Mean

60.4 

60.8 

755

219

306 

86.3 

179 

370 

588 

660 

410 

454 

551

375

Sept.

577 

577 

526 

484 

562

556 

575 

572 

570 

568

561 

557 

555 

553 

549

542 

538 

534 

532 

530

538 

566 

559 

549 

540

538 

566 

561 

555 

544

Run-off in 

acre-feet

3,710 

3,620 

46,430

158,700

18,830 

4,960 

11,000 

22,010 

36,140 

39,250 

25,220 

27,930 

32,790

271,900

9-232 February 1936

intlTKD STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
184 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Ward tunnel at outlet, Calif.

Location.- Water-stage recorder, lat. 37°16', long. 119°09', in SEi sec. 5, T. 8 S., R 

2G E., Just upstream from tunnel outlet, at east end of Huntington Lake. 6 miles 

northeast of Big Creak. Altitude of gage, about 7,200 feet (from topographic map).

Records available.- November 1927 to September 1940. 

Average discharge.- 12 years (1928-40), 395 second-feet.

Extremes.- Maximum daily discharge during year, 1,700 second-feet May 19; minimum daily, 

31 second-feet Nov. 24.

1927-40: Maxirnun daily discharge, 2,080 second-feet June 21, 1935; minimum daily, 

2.8 second-feet May 11, 1938.

Reniarks.- Records excellent. 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 and rating table furnished by Southern California 

fdison co. in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

75

105

ISO

118

138

132

114

126

145

253

252

254

253

250

247

242

234

188

144

140

135

132

130

126

120

121

119

69

61

58

55

HOT.

54

52

50

50

46

45

44

46

44

41

42

40

36

37

36

34

35

34

36

33

33

33

32

31

202

40

315

485

456

432

-

Dec.

432

334

290

496

728

730

724

719

804

1,030

844

341

344

344

344

405

1,020

1.010

1,020

1,030

1,010

1,000

990

980

967

1,010

1,050

1,030

1,010

1,040

1,040

Jan.

1,010

984

964

1,000

933

861

750

648

422

261

191

243

214

207

195

182

176

166

153

142

136

132

128

129

133

188

202

205

196

185

178

Feb.

168

160

158

162

167

170

157

154

152

155

148

144

140

137

142

148

153

147

136

144

142

139

146

161

161

184

199

224

221

_

-

Month

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

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

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

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

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

Water year 1939-40. .....................

Mar.

217

272

263

245

235

234

255

305

316

282

243

207

201

202

216

234

246

244

246

281

320

374

425

471

516

496

584

498

427

407

406

Apr.

427

378

357

338

314

324

364

361

414

480

567

674

823

939

877

688

620

755

919

969

1,060

1,170

1,170

1,190

1,140

973

840

759

728

793

-

Seoondfoot-days

4,656

2,894

24,116

138, 550

11,514

4 619

9, 868

21,411

38,684

25,686

20 799

leleee

17, 572

198,485

May

1,000

1,130

1,140

888

634

681

1,270

1,390

1,410

1,450

1,500

1,550

1,580

1,610

1,640

1,660

1.670

1,690

1,700

1,550

1,170

1,180

1,100

926

940

948

1,260

1,310

926

922

859

Mfly^Timnft

254

485

1,050

1,240

1,010

224

584

1,190

1,700

1,160

1,110

629

623

1,700

June

672

694

1,070

1,080

1,080

1,080

986

521

240

322

639

786

897

1,010

725

475

1,010

741

886

955

1,160

966

658

737

1,040

1,130

1,050

988

998

1,090

-

July

1,110

1,070

964

724

958

908

867

940

1,110

1,000

847

759

741

724

681

637

580

520

437

417

' 416

452

476

490

517

449

383

383

385

431

423

Minimum

55

31

290

28

128

136

201

314

634

240

383

431

508

31

Aug.

431

487

476

474

504

522

543

540

538

535

533

532

530

427

506

484

474

466

462

503

591

588

581

580

588

600

583

610

629

623

618

Mean

150

96.5

778

380

371

159

318

714

1,248

856

670

538

586

542

Sept.

615

610

580

508

623

618

613

607

602

597

592

589

586

583

580

576

572

567

564

557

567

599

592

583

575

570

596

591

584

576

-

Run-off in 

acre-feet

9,240

5,740

47, 830

274, 800

22, 840

9,160

19,570

42, 470

76,730

50,950

41,250

33,060

34, 850

393,700

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeological Survey
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 185

Bear Creek near Vermilion Valley, Calif.

Location.- Water-stage recorder, lat. 37°20', long. 118°58', in SWs- 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 map).

Drainage area.- 53.5 square miles.

Records available.- November 1921 to September 1940.

Average, discharge.- 16 years (1922-30, 1932-40), 82.0 second-feet.

Extremes.- Maximum discharge during year, 922 second-feet June 29 (gage height, 5.97 

feet); minimum, 1.8 second-feet Dec. 22.

1921-40: 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 good except those for periods of ice effect, which are fair. No 

storage or diversion above station.

Cooperation.- Water-stage recorder graph and results of 17 discharge measurements furnisnea by Southern California Edison Co. in connection with a Federal Power Commission 

project.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

3.0 

3.2 

3.4 

3.6 

3.8

3.4

10.0

22.5

41

67

4.0 

4.2 

4.4 

4.6 

4.8

133

175

230

302

5.0 

5.2 

5.4 

5.6

390

490

595

705

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

29

42

49

51

54

53

56

48

45

43

42

42

40

39

37

34

31

29

28

25

23

22

21

20

18

18

20

20

18

16

16

HOT.

15

14

14

13

12

11

11

12

10

9.5

9.5

8

S

8.5

8

8

7

7

7

6

6

6

6

6

5

5

5

5

5

5

-

Dec.

6

»6

6

6

6

6

6

6

6

5

5

5

5

5

5

5

5

5

5

4

4

4

5

5

5

5

5

5

5

5

5

Jan.

5

5

5

5

8

10

12

16

18

18

22

25

30

*36

30

25

25

20

20

20

20

20

20

20

20

20

25

25

25

25

25

Feb.

25

25

25

25

25

25

25

»25

25

25

20

20

20

21

26

27

23

24

27

27

23

22

23

24

22

28

30

34

37

-

-

Month

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

Calendar year 1939.. ....................

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

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

«ay.. .....................................

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

Water year 1939-40. .....................

Mar.

35

35

35

33

33

36

45

54

51

42

36

37

32

30

34

36

36

36

37

46

54

64

76

80

79

72

73

60

56

53

60

Apr.

60

53

48

45

42

46

51

51

63

79

96

119

141

139

113

82

85

124

147

151

171

180

178

178

145

113

98

93

93

115

-

Seoondfoot-days

1,029

252.5

161

20,281.5

600

728

1,486

3.099

12, 191

14,822

4,324

935

289

39,916.5

May

133

230

215

185

185

203

224

283

358

410

440

430

445

480

485

505

465

410

405

450

490

480

480

495

540

495

505

485

425

395

410

MoTriimmi

56

15

6

336

36

 try O I

Qf\ O\J

180

540

644

376

51

16

644

June

470

465

470

490

445

460

460

520

515

510

551

606

628

584

568

634

644

568

515

450

480

465

415

405

390

358

345

381

490

540

-

July

376

332

291

272

250

237

227

198

175

157

145

137

126

119

112

108

93

87

80

73

67

66

61

68

SO

74

68

67

63

59

56

Minimum

16

5

4

4

S

20

30

42

1 o* J.OO

345

56

 I ft

J.D

5.5

4

Aug.

51

48

43

41

39

37

36

36

37

37

37

36

36

35

33

30

28

26

26

24

23

22

20

20

24

21

20

19

18

17

16

Mean

33.2

8.42

5.2

55.6

19.4

25.1

47.9

103

4QV ovo

494

139

30.2

9.63

109

Sept.

16

16

15

13

13

13

12

12

11

10

9.5

9.5

9.5

9

9

9

9

8.5

8.6

8.5

8.5

8

8

7.5

7

6.6

6

5.5

5.5

5.5

-

Run-off in 

acre-feet

2,040

501

319

40,230

1,190

1,440

8

Qf£f\

fVOV

6,150

a A i Q fi fSf*l ±O\J

29,400

8,580

1,850

573

79,170

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice HOT. 12, Hov. 17 to Feb. 12, and Mar. 1-4.
186 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Mono Creek near Vermilion Valley, Calif.

Location.- Water-stage recorder, lat. 37°22', long. 118°59', In SWt sec. 35,'T. 6 S., R. 

27 £. (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 map).

Drainage area.- 92.0 square miles.

Records available.- November 1921 to September 1940.

Average discharge.- 16 years (1922-30, 1932-40), 140 second-feet.

Extremes.- Maximum discharge during year, 1,130 second-feet May 24 (gage height, 7.66 

feet;; minimum, 6.5 second-feet Dec. 22.

1921-40: Maximum discharge, 1,760 second-feet June 2, 1938 (gage height, 8.62 

feet); minimum, that of Dec. 22, 1939.

Remarks.- Records good except those for periods affected by Ice, which are fair. No 

storage or diversion above station.

Cooperation.- Water-stage recorder graph and results of 21 discharge measurements furrushed, by Southern California Edison Co. In connection with a Federal Power Commission 

project.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in seoond-feet)

4.7

4.8

4.9

5.0

11 5.1

5.2 

5.4 

5.6

49

65

102

148

5.8 

6.0 

6.2 

6.4

204

272

352

442

6.6 

6.8 

7.0 

7.4

540

640

745

970

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

s 

z

4 

5

6

7 

8 

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

20

21 

28 

83 

84 

85

86 

27 

88 

89 

30 

31

Oct.

35 

49 

54 

55 

60

62 

62 

59 

55 

54

57 

59 

59 

59 

57

54 

49 

45 

42

40

39 

36 

35 

34 

30

30 

40 

37 

34 

38 

30

Kov.

29 

29 

28 

27 

26

25 

25 

26 

24 

23

23 

22 

21 

21 

21

20 

20 

20 

20 

19

19 

19 

IS 

18 

18

17 

17 

17 

17 

17

Dec.

*1S 

17 

16 

15 

14

13 

13 

13 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

13 

13 

14 

14

Jan.

15 

15 

*16 

16 

20

20 

25 

35 

35

40

40 

45 

55 

60 

55

50 

45 

40 

40 

40

40 

35 

35 

35 

35

40 

45 

50 

50 

50 

65

Feb.

45 

40 

39 

36 

35

35 

35 

35 

*35 

34

32 

30 

30 

30 

35

35 

35 

35 

35 

35

35 

30 

32 

36 

35

36 

41 

45 

51

Month

Oot 

Boy 

Dec

C

Jan 

Fefc 

Mar

Apr

Jut 

Jul 

Aug 

Sep

W

alendar year 1939 ......................

ater year 1939-4 a......................

liar.

55 

55 

55 

50

48

45 

45 

55 

60 

55

52 

50 

*50 

55 

55

60 

65 

65 

70 

77

90 

104 

120 

129 

141

134 

143 

186 

117 

115 

111

Apr.

115 

102 

94 

92 

88

92 

100 

100 

113 

129

151 

177 

220 

254 

226

186 

189 

226 

261 

287

318 

348 

365 

370 

327

268 

240 

230 

230 

250

Seoondfoot-days

1,443 

646

401

33,237

1,187 

1,042 

2,455 

6,148 

21.284 

21,848 

6,446 

1,763 

719

65,382

May

314 

405 

419 

383 

378

401 

419 

485 

575 

670

72S 

728 

740 

789 

828

800 

756 

718 

712 

756

850 

872 

888 

894 

964

894 

882 

S55 

778 

718 

685

Maximum

62 

29 

18

433

65 

51 

143 

370 

964 

934 

461 

92 

35

964

June

778 

806 

784 

806 

745

767 

767 

S38 

83S 

S3S

872 

934 

934 

S66 

S28

S88 

899 

789 

71S 

635

670 

660 

575 

540 

510

466 

452 

490 

550 

605

July

461 

410 

378 

365 

352

339 

323 

295 

272 

243

226 

210 

198 

189 

177

171 

153 

143 

141 

131

120 

117 

115 

124 

136

124 

113 

. 113 

111 

100 

96

JHfHTimpa

30 

17 

12

12

15 

30 

45 

88 

314 

452 

96 

34 

18

12

Aug.

92 

84 

80 

75 

74

70 

68 

68 

68 

68

6S 

68 

67 

65 

62

59 

54 

49 

49 

46

45 

45 

41 

41 

45

39 

35 

35 

35 

34 

34

M«an

46.5 

21.5 

12.9

91.1

38.3 

35.9 

79.2 

205 

687 

728 

208 

56.9 

24.0

179

Sept.

35 

35 

33 

32 

29

30 

28 

26 

26 

25

23 

23 

23 

23 

23

23

23 

23 

22 

21

21 

20 

21 

20 

19

19 

19 

18 

18

18

Run-off In 

aore-feet

2,860 

1,280 

795

65,900

2,350 

2,070 

4,870 

12,190 

42,220 

43,330 

12,790 

3,500 

1,430

129,700

 Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice NOT. 13 to Feb. 2, Feb. 5-9, 11, 12, 15-21, Mar. 

1-4, 8-10, 12-17.

9-838 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 187

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 B., In gate tower of dam 1 on Big Creek and 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 1940. 1913 to 1926, summary records only,

in water-supply Paper 881.

Extremes.- Maximum contents during year, 88,900 acre-feet July 2 (elevation, 6,950.0 

feet}; minimum, 3,400 acre-feet Nov. 27 (elevation, 6,846.9 feet).

1913-40: Maximum contents, 90,000 acre-feet May 23, 1926 (elevation, 6,950.8 

feet); minimum, 1,860 acre-feet Mar. 8, 1935 (elevation, 6,839.0 feet).

Remarks.- Lake is formed by four dams; storage began Apr. 11, 1913. Dams were raised 

In 1914 and 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 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. in connectlon with a Federal Power Commission project.

Contents, In acre-feet, water year October 1939 to September 1940

Day

1

Z

5

4

6

6

7

B

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

26

26

27

28

29

SO

31

Oct.

34,900

34,400

33,900

33,400

33,000

32,600

32,200

32,100

31,900

31,800

31,700

31,600

31,500

31,400

31,500

31,4OO

31,300

30,900

30,500

30,000

29,500

29,100

28,600

28,100

27,700

27,200

26,700

26,200

26,100

25,300

24,400

NOT.

23,500

22,700

21,800

20,900

20,300

19,500

13,600

17,600

16,700

15,800

15,000

14,300

13,400

12,500

11,500

10,600

9,690

3,800

3,240

7,330

6,470

5,550

4,370

3,980

3,610

3,700

3,400

3,460

3,430

3,420

-

Dec.

3,420

.3,510

4,080

4,290

4,910

5,560

6,200

6,810

7,930

10,000

11,100

11,000

10,900

10,300

10,700

10,700

12,200

13,500

14,700

15,900

17,100

13,100

19,400

21,200

23., 000

24,200

25,300

26,600

27,900

29,400

31,100

Jan.

33,000

34,900

36,600

33,300

40,500

41,900

43,500

44,900

45,800

46,400

46,600

47,300

47,800

48,200

48,200

48,200

48,200

48,100

48,000

48,100

48,300

48,000

47,700

47,500

47,300

48,300

48,400

43,300

47,900

47,400

46,800

Feb.

46,400

46,000

46,100

46,200

45,900

45,700

45,300

44,900

44,500

44,000

43,700

43,300

42,700

42,400

41,900

41,300

40,900

40,600

40,100

39,600

39,000

38,600

33,400

38,200

33,200

38,100

38,000

37,900

37,900

_

-

Mar.

37,300

33,100

33,500

33,500

38,300

38,300

38,300

38,400

33,700

39,100

39,100

33,900

33,700

58,600

38,400

58,300

33,500

38,400

33,400

33,400

33,500

38,300

39,200

40,200

40,900

41,700

42,600

43,100

43,400

43,700

44,300

Apr.

44,500

44,600

44,700

44,900

45,000

45,200

45,600

45,800

46,000

46,500

47,100

43,100

49,600

51,600

52,800

52,500

51,600

50,300

50,300

50,300

50,900

51,300

51,700

52,300

52,700

52,700

52,400

52,200

51,600

51,300

-

May

51,800

52,700

53,700

54,100

54,200

54,200

55,400

57,000

59,000

61,000

63,000

65,300

67,400

69,500

71,500

73,300

74,300

76,800

73,300

30,400

31,300

82,100

32,600

33,000

33,200

33,400

33,900

34,400

33,300

83,300

32,300

June

32,500

32,200

32,300

84,200

35,300

85,800

36,400

86,600

36,600

86,300

36,500

36,500

36,500

36,900

36,900

36,900

87,300

37,200

37,100

37,200

37,700

88,000

88,000

87,600

87,700

38,000

87,900

33,000

33,300

88,700

-

July

ss.eoo

88,900

33,300

88,300

33,700

83,700

63,800

38,700

88,800

88,700

33,500

33,600

33,500

33,600

33,700

33,700

33,700

33,700

83,600

83,600

33,600

88,500

83,400

38,400

88,500

88,400

88,300

33,100

87,900

37,300

37,600

Aug.

87,500

87,400

87,300

37,300

87,300

87,300

87,400

87,500

87,500

87,600

87,600

87,600

87,800

87,900

87,900

87,800

87,700

87,600

87,500

87,400

87,400

87,300

87,200

87,200

87,200

87,200

87,100

87,100

87,200

87,200

87,200

Sept.

37,300

37,300

37,200

87,100

37,200

87,200

37,300

37,300

37,400

87,300

37,300

37,300

37,300

87,400

37,400

37,300

37,200

37,100

37,000

36,900

36,900

37,000

37,000

87,000

36,900

36,800

36,800

36,700

36,800

36,700

~

Monthly elevation and contents, water year October 1939 to September 1940

Date

P

_>- OQ

Sept. 30. ...................

Elevation 

(feet)

6,943.5

Contents 

(acre-feet)

24 400

36,700

Change in contents 

during month 

(acre-feet)

-500

+51.500
188 SAN JOAQUIII RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Big Creek below Huntington Lake, Calif.

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 

Huntington Lake. Altitude of gage, about 6,600 feet (from topographic map).

Drainage area.- 80.0 square miles.

Records available.- June 1925 to September 1940 (records prior to October 1929 cover only 

periods of spill from Huntington Lake).

Average discharge.- 11 years (1929-40), 1.32 second-feet.

Extremes.- Maximum discharge during year, 16 second-feet July 6 (gage height, 3.43 feet): 

minimum, 0.2 second-foot Dec. 8, 9, 13-31.

1925-40: Maximum discharge, 2,040 second-feet June 23, 1925 (gage height, 10.3 

feet), siphon spillways operating at Huntington 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 Huntington Lake and 

during most of year is diverted for power development through Big Creek powerhouse

No. 1.

Cooperation.- Water-stage recorder graph and results of 10 discharge measurements furnished by Southern California Edison Co. in connection with a Federal Power Commission 

project.

Rating table, water year 1939-40 (gage height, In feet, and discharge. In second-feet) 

Z.Z 0.3

2.3

2.4

2.5

2.6

2.7

2.8

2.9

1.6 

2.1 

2.8 

3.8

3.0

3.1

3.2

3.3

7

9.5

12

Discharge, In eeoond-feet, water year October 1939 to September 1940

Day

1

%

3

4

S

6

7

S

9

10

11

18

13

14

IS

16

17

IS

19

80

S3.

22

89

84

85

86

27

28

29

90

91

Oct.

0.5

.8

.6

.4

.4

.7

.7

.6

.6

.6

.5

.5

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.3

.3

.3

HOT.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.5

.5

.5

.5

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

-

Dec.

0.3

.3

.3

.3

.3

.3

.3

.2

.2

.3

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Jan.

0.3

3.4

.9

1.6

.6

.6

.6

.6

.6

.6

1.1

1.0

.8

.7

.6

.5

.5

.5

.4

.4

.4

.4

.4

.4

.9

1.9

1.2

1.0

.9

.9

.9

Feb.

0.9

.e

.9

1.0

.9

.e

.7

.7

.7

.7

.7

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.6

.7

.9

1.2

1.3

1.6

1.7

-

-

Month

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

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

thj....... ................................

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

Water year 1939-4 0......................

Mar.

1.3

1.2

1.2

1.1

1.2

1.2

1.4

1.5

1.6

1.4

1.2

1.2

1.2

1.2

1.3

1.4

1.5

1.5

1.7

1.9

2.0

2.2

2.4

2.7

3.6

3.8

6.5

4.2

3.8

4.0

3.9

Apr.

3.1

2.8

2.8

2.7

2.5

2.7

2.7

2.8

2.9

3.3

3.6

4.O

4.6

4.9

4.6

4.2

4.2

4.4

4.5

4.5

4.8

4.8

4.6

4.6

4.4

4.2

3.9

3.5

3.5

.3.5

-

Seoondfoot-daye

13.2

10.0

7.3

219.5

25.8

22.9

66.3

113.6

71.3

30.0

72.0

10.4

11.2

454.2

May

3.6

3.8

3.6

3.3

3.1

3.0

3.0

2.9

2.8

2.8

2.6

2.4

2.3

2.3

2.1

2.1

2.0

2.0

1.9

1.8

1.8

1.8

1.7

1.7

1.7

1.6

1.6

1.6

1.5

1.5

1.4

Moyinnmi

0.8

.5

.4

2.7

3.4

1.7

6.5

4.9

3.8

1.4

11

.4

.4

11

June

1.4

1.4

1.3

1.3

1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

-

July

9

11

10

2.7

4.5

6

5

3.5

1.7

1.3

.9

.8

.9

.7

.9

2.5

1.3

1.1

1.2

.9

.7

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

Minimum

0.3

.3

.2

.2

.3

.5

1.1

2.5

1.4

.8

.5

.3

.3

.2

Aug.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Mean

0.43

.33

.24

.60

.83

.79

2.14

3.79

2.30

1.00

2.32

.34

.37

1.24

Sept.

0.3

.3

.3

.3

.4

.4

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

-

Rim-off in 

acre-feet

26

20

14

433

51

45

192

226

141

60

143

21

22

901

9-298 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Pitman Creek below Tamarack Creek, Calif.

189

Location.- Water-stage recorder, lat. 37°12', long. 119°12', in NWi sec. 35, T. 8 S., R 

35 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 1940.

Average discharge.- 12 years (1928-40), 36.3 second-feet.

Extremes.- Maximum discharge during year, 530 second-feet probably on May 9 (gage height, 

5.77 feet); minimum, 0.1 second-foot Aug. 31.

1927-40: Maximum discharge, 2,320 second-feet Dec. 11, 1937 (gagfe 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 durlng-perlod Oct. 15-18, 1931.

Remarks.- Records good, except those for periods of Ice effect and no gage-height record, 

which are fair. No diversion above station; practically all flow diverted to Huntlngton-Shaver conduit below station.

Cooperation.- Water-stage recorder graph and results of 12 discharge measurements furnlshed by Southern California Edison Co. in connection with a Federal Power Commission 

project.

Rating table, water year 1959-40-(gage height, In feet, and discharge, In second-feet)

1.82 0.1 2.2 9.5 2.8 57 4.0 135

1.9 .5 2.5 13.5 5.0 49 4.4 189

2.0 2.7 2.4 17.5 5.3 69 4.8 260

2.1 6 2.6 27 5.6 94 5.6 474

Discharge, in second-feet, water year October 1959 to September 1940

Day

1

a

3

4

S

6

Y

e

9

10

11

18

13

14

IS

16

17

18

19

80

SI

88

23

24

85

86

27

28

29

90

31

Oct.

0.5

2.7

2.2

1.4

1.0

1.6

2.4

5.4

2.7

2.7

2.4

2.2

1.9

1.4

1.0

.e

.e

.5

.5

.4

.4

.4

.4

.5

.8

1.0

1.2

1.6

1.6

1.6

1.4

HOT.

1.2

1.0

1.0

.8

.e

.6

.6

.6

.6

.5

.4

.5

.5

.5

.3

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.5

.5

.5

-

Dec.

0.5

.5

.4

.4

.4

.5

.5

.4

.4

b.6

bS.5

bl.6

bl.2

bl.O

b.e

.S

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.8

1.0

1.0

Jan.

. b6

Feb.

> b7

Month

Calendar rear 1959 ......................

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

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

toy.......................................

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

Water year 1959-4 3 ......................

Mar.

.

 b55

i

Apr.

b54

b46

b44

b42

b40

b42

b48

b50

b62

84

107

155

170

170

141

99

109

152

177

197

226

226

244

256

188

159

108

105

150

190

-

Seoondfoot-days

45.2

13,8

22.2

6,693.0

186

203

1,085

3,759

S 225

1^258

87

6.6

14,896.7

May

275

335

345

500

290

290

500

555

405

580

400

590

370

365

299

260

256

240

238

238

240

226

22V

224

191

165

156

147

127

10S

105

Maximum

5.4

1.2

5.5

172

_

_

244

405

110

10

.5

.3

405

June

110

100

87

S4

77

75

70

66

61

54

51

47

42

58

54

50

28

24

22

20

18

16

16

15

13

12

12

12

12

12

-

July

10

9

7.5

6.5

5.5

4.7

4.4

5.7

5.4

3.0

2.7

2.7

2.4

2.2

2.2

1.9

1.9

1.9

1.6

1.4

1.2

1.2

1.0

.S

.8

.6

.6

.6

.6

.5

.5

Minimum

0.4

.5

.5

.1

_

_

40

105

12

.5

.1

.2

.1

Aug.

0.5

.4

.4

.5

.5

.5

.3

.3

.3

.5

.5

.5

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

Mean

1.59

.46

.72

IS. 9

6

7

55

125

265

41.9

2.81

.25

.25

40.7

Sept.

0.2'.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.5

.5

.2

.3

.5

.5

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

-

Run-off in 

acre-feet

86

27

44

15,670

369

405

2,150

7,460

16,510

2,500

175

15

15

29,550

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Apr. 28 to May 14 and Sept. 16-28; discharge computed on basis of 

recorded range In stage and records for Huntlngton-Shaver conduit at outlet.

9-238 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeological Surrey
190 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

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.- 39.7 square miles.

Records available.- January 1937 to September 1940.

Extremes.- Maximum contents during year, 135,"200 acre-feet June 25, 27, July 5, 8

 (elevation, 5,370.0 feet); minimum, 13,400 acre-feet Dec. 27-31 (elevation, 5,286.9 

feet)1927-40: 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_dpu completed and storage began in January

 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. in con-

 nectlon with a Federal Power Commission project.

Contents, in acre-feet, water year October 1939 to September 194O

Day

1

2

S

4

6

6

1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

28

23

24

26

26

27

28

29

30

31

Oct.

17,100

17,20O

17.20O

17,200

17,300

17,400

17,4OO

17,400

17,30O

17,200

17,100

17,100

17,000

16,900

16,9OO

16,800

16,700

16, 6OO

16,400

16.3OO

16,2OO

16,200

16,000

15,900

15,800

15,300

15,200

15,300

15,3OO

15,300

15,300

Hov.

15,300

15,200

15,3OO

15,300

15,2OO

15, BOO

15,300

15,000

15.OOO

15.OOO

15,100

15,100

15,1OO

15,100

15,100

15,100

15,100

15, 1OO

15,100

15, 1OO

15,100

15,100

15,1OO

15,100

15.2OO

15,2OO

15,200

15,000

14,700

14,3OO

-

Dec.

14,200

14,200

14,200

14,300

14,300

14,300

14.3OO

14.3OO

14,300

14.4OO

14.5OO

14,500

14,500

14,500

14.5OO

14,500

14,50O

14,600

14,6OO

14,600

14,600

14,200

14,1OO

14,100

14,100

13.8OO

13,400

13,400

13,400

13.4OO

13,400

Jan.

13,500

13,800

13,900

14,20O

14,300

14,WO

14,600

15,OOO

15,500

16,20O

16,900

17,2OO

17,300

17,400

17,5OO

17,6OO

17,700

17,300

17,300

17,900

17,900

1S,OOO

13,000

18,100

18,600

19,OOO

19,100

19,3OO

19,40O

19,4OO

19,500

Feb.

19,400

19,200

19,600

19,SOO

19,700

19,7OO

19,500

19,40O

19,200

19.20O

19,2OO

19,100

1S,9OO

13,800

1S.60O

18,30O

18,300

1S,30O

1S,OOO

17,600

17,20O

17,100

17,50O

17,500

1S,1OO

1S,3OO

13,600

13,900

19,100

-

Mar.

19,30O

19,6OO

19,80O

2O,OOO

20,100

20,100

2O.1OO

20.1OO

2O,2OO

2O,40O

2O,3OO

2O,100

2O,OOO

19,SOO

19,5OO

19,50O

19,600

19,2OO

18,800

1S,40O

1S.OOO

17,700

17.7OO

17,600

17.40O

17,300

17,800

17,900

17,9OO

1S.5OO

19,200

Apr.

19,400

19,500

19,500

19,500

19,4OO

19,600

19,90O

2O,OOO

20,100

2O,2OO

20,400

20,600

2O, 900

21,400

21.9OO

23,100

24,7OO

26,800

2S,9OO

31,300

33.8OO

35,900

33,000

4O,10O

42,000

44,OOO

46,20O

48,400

5O,30O

52,300

-

May

54,300

56,50O

53,700

61,000

63.50O

65,4OO

67,3OO

69,40O

71,300

73,6OO

76,600

79,7OO

82,300

84,800

37,400

S9,9OO

92,5OO

95,200

9S,3OO

100,700

103, 3OO

105,700

108,100

110,700

113, 4OO

116,300

118,700

121,000

123,300

126,200

123, 3OO

June

129,800

131,800

132,900

133,000

133,300

133, 9OO

134,500

134,500

134,700

134,600

134.4OO

134,5OO

134,900

135,100

135,100

135,100

135,1OO

135,100

135,1OO

135,100

135, OOO

135,OOO

135,1OO

135,100

135,200

135,100

135,200

135,100

134, 7OO

135,000

-

July

135, 10O

135,100

135,000

135,100

135, 2OO

135, OOO

135,100

135, 2OO

135,1OO

135,1OO

135,000

134,500

134,200

134,200

133, 5OO

132,900

132,200

132,000

132, OOO

132, OOO

131, 9OO

131,000

129, 9OO

128,900

127,700

126, 6OO

125, 7OO

125,100

124,200

123.0OO

121.9OO

Aug.

120.7OO

119,600

113,400

117,400

116,200

115,OOO

113, 8OO

113,700

111,500

11O,3OO

109,100

1O7.9OO

106,700

105.5OO

104,300

103,100

101,900

100,800

99,600

98,400

97,200

96,100

94,900

93,800

92,700

91,500

9O,400

89,2OO

8S.1OO

86,9OO

35,800

Sept.

S4.8OO

83,700

82,600

81,500

80,600

79,400

78,4OO

77,600

76,600

75,600

74,600

73,9OO

73,100

72,700

72,60O

72.1OO

71,600

71,000

70,5OO

7O,OOO

69,8OO

69,700

69,200

68,5OO

67,800

67,000

66,300

65,6OO

65,500

64,900

~

Monthly elevation and contents, water year October 1939 to September 1940

Date

Feb 29

Sept.3O. ...................

Water year 1939-4O. ......

Elevation 

(feet)

5 286 9 * *

5,332.6

-

Contents 

(acre-feet)

17 OOO

64,9OO

-

Change In contents 

during month 

(acre-feet)

 900

-2O.90O

+47,900
SAN JDAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 191

Huntlngton-Shaver conduit at outlet, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°10', long. 119°14', In SWi 

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 1940. 

Average discharge.- 11 years (1929-40), 161 second-feet.

Extremes.- Maximum dally discharge during year, 1,670 second-feet May 11, 12; minimum, 

2.4 second-feet, Dec. 22-28.

1928-40: Maximum dally discharge, 1,700 second-feet June 3, 4, 1938; minimum, 1.5 

second-feet Sept. 12-16, 1934.

Remarks.- Records good. Conduit diverts vjater from Huntlngton Lake to Shaver Lake, picking 

up water diverted from Pitman Creek and seepage en route.

Cooperation.- Water-stage recorder graph and results of one discharge measurement furnished by Southern California Edison Co. In connection with a Federal Power Commission 

project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

S

3

4

5

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

SO

Si

22

S3

24

25

26

27

28

29

SO

51

Oct.

2.6

4.5

4.2

3.6

3 2

3.6

4.2

5

4.8

4.5

4.2

4.2

3.9

3.6

3.4

3.2

3.2

3.0

3.0

3.0

2.8

2.8

2.8

2.8

3.0

3.0

3.2

3.4

3.6

3.9

3.6

HOT.

3.4

3.4

3.2

3.2

3.2

3.0

3.0

3.0

3.0

3.0

3.0

3.0

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.6

2.6

2.6

-

Dec.

2.6

2.8

2.6

2.6

2.6

2.8

3.0

2.8

2,6

2.8

6.5

3.9

3.4

3.0

3.0

3.0

3.0

2.8

2.8

2.6

2.6

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.6

2,8

2.8

Jan.

3.1

34

13

6.5

6

6.5

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

5.5

5.5

7.5

8.5

9

9

9

8.5

Feb.

8.5

8.5

9

9.5

9

9

9

9

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8

8

8

8

8

8

8.5

9

9

10

10

12

16

.

-

Month

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

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

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

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

Water year 1939-40. .....................

Mar.

16

16

15

15

15

16

17

20

22

21

19

18

17

17

18

20

22

24

27

34

42

51

62

70

94

98

136

99

75

76

67

Apr.

59

51

48

47

43

46

52

55

68

90

114

141

179

181

343

741

951

1,170

1,190

1,220

1,270

1,270

1,340

1,330

1,200

1,140

1,110

1,100

1,120

1,170

-

Seoondfoot-days

109.8

87.2

86.8

20,576.2

225.1

S62* 0

1,259

18, 839

47,970

15, 146

5,785.7

94.8

79.0

89,946.4

May

1,260

1,340

1,340

1,320

1,310

1,310

1,330

1,440

1,400

1,520

1,670

1,670

1,660

1,660

1,660

1,640

1,640

1,640

1,650

1,660

1,660

1,650

1,650

1,650

1,640

1,640

1,630

1,630

1,620

1,610

1,470

Mnyimimft

5

3.4

6.5

1,180

34

16

136

1,340

1,670

1,150

545

3.6

2.8

1,670

June

1,150

1,130

896

502

499

773

667

337

264

326

329

482

671

573

440

166

404

402

447

440

420

417

237

466

506

447

558

478

295

424

-

July

545

522

458

235

469

398

338

455

531

502

380

154

230

152

52

170

103

12

11

11

11

9

5

4.8

4.5

4.5

4.2

3.9

3.6

3.6

3.6

If^yi^imirn

2. 6

2.6

2.4

2.4

3.1

8

15

43

1,260

166

3.6

2.8

2.6

2.4

Aug.

3.6

3.4

3.4

3.4

3.2

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

3.0

3.0

3.0

2.8

2.8

2.6

2.8

2.8

2.8

2.8

Mean

3.54

2.91

2.86

56.1

7.26

9.03

40.6

628

1,547

505

187

3.06

2.63

246

Sept.

2.8

2.8

2.8

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

a2.6

a2.6

a2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.8

2.8

-

Run-off in 

acre-feet

218

173

176

40,820

446

520

2,500

37, 370.

95,150

30,040

11,480

188

157

178,400

a No gage-height record; discharge Interpolated.

9-292 February 1936

TJHITKD STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
192 SAN JOAQUIN RIV3R TRIBUTARIES ABOVE FRESNO RIVER

Fine Gold Creek near Frlant, Calif.

Location.- Water-stage recorder, lat. 37°03', long. 119°39', In NWi sec. 14, T. 10 S., 

R. 21 E., 1,000 feet downstream from Willow Creek, 14 miles upstream from mouth, and 

5J miles northeast of Frlant. Altitude of gage, about 680 feet (from topographic nap).

Drainage area.- 89.2 square miles.

Records avallanle.- October 1936 to September 1940.

Extremes.- Maximum discharge during year, 4,550 second-feet Jan. 25 (gage height, 13.53 

 feet); no flow July 26 to Aug. 3 and Aug. 11 to Sept. 30.

1936-40: 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 tines.

Remarks.- Records fair except those for periods of no or doubtful gage-height record, 

which are poor. No storage or diversion above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

81

22

23

84

25

26

27

28

89

30

31

Oct.

1

2

5

2.5

2

2

2

1.9

1.9

1.8

1.8

1.7

1.7

1.6

1.7

1.6

1.6

1.6

1.6

1.7

1.8

1.7

1.6

1.7

2.2

2.2

2.2

2.1

2.0

2.0

2.0

HOT.

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.1

2.1

2.1

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.3

2.4

2.5

2.4

2.3

-

Dec.

2.3

2.3

2.3

2.3

2*3

2.3

2.3

2*3

2.3

2.4

10

7

5.5

5

4.7

4.4

4.4

4.4

4.3

4.3

4.4

4.4

4.4

4.5

4.4

4.4

4.3

4.3

4.2

4.1

4.1

Jan.

4.3

13

29

45

23

13

22

222

203

593

723

332

123

70

46

38

33

32

30

28

28

28

29

30

749

1,260

348

186

87

> 64

65

Feb.

56

69

290

344

192

140

133

92

SO

77

76

71

69

266

174

107

133

136

90

79

75

77

458

270

308

559

851

587

793

_

-

Month

 ?......................... ..............

Water year 1939-4

Mar.

505

356

262

212

178

155

133

123

123

112

104

95

87

83

80

76

71

6S

64

61

58

56

53

52

52

57

306

125

89

113

335

Apr.

153

102

83

75

68

64

61

57

54

53

52

48

46

45

44

44

43

40

40

38

36

34

33

32

32

51

40

32

29

27

Seoondfoot-days

ft A A

124.6

3,005.7

111.4

1.2 

0

18,706.8

May

25

22

20

20

20

19

18

18

17

16

15

14

13

12

11

10

10

10

10

9

8

8

7.5

7

6.5

6.5

6

6

6

6

5.5

Mo-Hnnim

10

128

851

153

6

.3

0

1,260

June

6

6

5.5

5

5

4.7

4.7

4.6

4.4

4.2

4.0

3.8

3.7

3.4

3.3

3.2

3.1

3.1

3.1

3.3

3.2

3.1

2.9

2.8

2.6

2.6

2.4

2.2

2.6

2.9

-

July

2.7

2.2

1.9

1.7

1.4

1.2

1.1

.6

.S

.7

.5

.5

.3

.1

.2

.3

1.1

1.1

1.0

1.2

1.3

.8

1.0

.7

.3

0

0

0

0

0

0

Minimum

2.0

2*3

0

4.3

56

62

27

2.2 

0

0

0

0

Aug.

0

0

0

.3

.2

.2

.2

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

1.94

2.15

4.02

8.23

177

229

137

51.9

12.3

3.71 

.80

.04 

0

51.1

Sept.

Run-off in 

acre-feet

119

128

247

5,960

10,880

13,190

8,420

3,090

758

221 

49

2.4

0

37,100

Peak discharge.- Jan. 10 (9:30 p.m.) 1,750 sec.-ft.; Jan. 25 (11 p.m.) 4,S50 sec.-ft.; Feb. 23 

(IS m.) 707 sec,-ft.; Feb. 26 (12:30 a.m.) 1,070 sec.-ft.; Feb. 27 (12:30 p.m.) 1,450 sec.-ft.; 

Mar. 27 (9 a.m.) 460 sec.-ft.

Mote.- Discharge for periods of no gage-height record, Oct. 1-10, HOT. 20 to Dec. 1, Dec. 3-4 and 

13, and period of doubtful gage-height record, July 13 to Aug. 10, computed on basis of range of 

stage, several staff-gage readings and records for Chowchllla River at Buchanan dan site.
FRESNO RIVER BASIN 

Fresno River near Knowles, Calif.

193

Location.- Water-stage recorder and concrete control, lat. 37°14', long. 119°46', In 

NWt sec. 15,, T. S3., 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 1940.

Average discharge.- 25 years (1911-12, 1916-40), 78.5 second-reet.

Extremes.- Maximum discharge during year, 2,200 second-feet Jan. 26 (gage height, 4.48 

feet); minimum, 1.8 second-feet Aug. 22 (gage height, 0.93 foot).

1911-13; 1915-40: 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. Water is diverted into Fresno River Basin above station from 

""San Joaquin and Merced River Basins. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

S

6 

7 

8 

9 

10

11 

18 

IS 

14 

15

16 

17 

18 

19 

20

81 

88 

83 

84 

85

86 

87 

88 

89 

30 

31

Oot.

11 

28 

46 

26 

19

20 

28

22 

18 

17

14 

14 

13 

12 

12

11 

10 

9.5 

9.5 

9.5

9.5 

9 

8.5 

9.5 

13

13 

12 

12 

11

10 

10

Hov.

10 

9.5 

9.5 

9.5 

10

10 

10 

9.5 

9.5 

10

9.5 

9 

9 

9 

9

9.5 

10 

10 

10 

10

10 

9.5 

9.5 

9 

9

9.5

10 

10 

9.5 

9.5

Dec.

9 

9 

9 

9 

9

9 

9 

9 

9 

9.5

24 

19 

14 

12 

12

11 

11 

11 

11 

11

12 

13 

14 

15 

15

14 

15

15 

16 

16 

16

Jan.

18 

45 

104 

129 

80

48 

62 

473 

503 

1,050

1,110 

584 

260 

161 

124

101 

86 

77 

67 

60

55 

55 

52 

50 

648

1,310 

402 

243 

186 

152 

138

Feb.

138 

130 

465 

434 

238

190 

177 

138 

120 

113

103 

97 

90 

225 

181

130 

145 

148 

127 

110

110 

113 

824 

407 

390

548 

1,270 

910 

1,170

Month

Oot 

HOT

Dec

C

Jan 

Pet 

Mar

Apr

Jui Jill

Aug 

Sep

ember ..................................

alendar year 1939 ......................

mapy . . .

atar year 1939-4

Peak discharge. -

(2:30 p.m. 

31 (3 a.m.

1,860 E 

1,220 E

Mar.

658 

464 

375 

315 

271

243 

220 

203 

181 

169

169 

152 

145 

138 

127

123 

120 

116 

110 

106

106 

148 

156 

156 

169

203

746 

330 

252 

345 

846

Apr.

429 

365 

335 

300 

885

257 

243 

229 

220 

216

207 

203 

203 

198 

203

194 

177 

177 

177 

177

177 

177 

177 

173 

173

225 

190 

173 

165 

156

Seoondfoot-days

467 

288 

387.5

16,465.6

8,433 

9,241 

7,862 

6,571 

4,883 

1,913 

392.0 

111.9 

109.6

40,659.0

May

181 

194 

194 

194 

190

186 

181 

181 

177 

173

169 

165 

160 

160 

152

152 

152 

148 

148 

148

148 

145 

145 

145 

141

138 

130 

127 

123 

120 

116

Iffft-yJTfp-pn

46 

10 

24

381

1,310 

1,270 

846 

429 

194 

116 

28 

5.5 

4.3

1,310

June

116 

116 

110 

106 

100

97 

90 

84 

81 

76

73 

68 

62 

60 

57

55 

53 

51 

49 

49

46 

42 

40 

38 

36

34 

33 

31 

30 

30

July

28

25 

23 

22 

20

20 

16 

11 

12 

12

12 

13 

13 

13 

13

12 

11 

13 

14 

11

10 

9 

8.5 

8 

7

6 

5.5 

6 

6 

6 

6

Aug.

5.5 

5.5 

5.5 

5 

5

4.6 

4.6 

4.3 

4.3 

4.0

4.0 

4.6 

5.5 

4.0 

3.0

3.0 

3.0 

3.0 

2.7 

2.7

2.5 

2.2 

2.2 

2.5 

2.7

2.8 

2.8

2.7 

2.5 

2.5 

2.7

Sept.

2.7 

2.8 

2.8 

3.3 

4.3

4.3 

4.3 

4.0 

3.7 

3.3

3.0 

3.3 

3.3 

3.7 

3.7

3.7 

4.0 

4.0 

4.3 

4.3

4.3 

3.7 

3.7 

3.7 

3.7

3.7 

3.3 

3.3 

3.7 

3.7

Minium Mean *%£%£

8.5 15.1 926 

9 9.60 571 

9 12.5 769

.6 45.1 32,660

18 272 16,730 

90 319 18,330 

106 254 15,590 

156 219 13,030 

116 158 9,690 

30 63.8 3,790 

5.5 12.6 778 

2.2 3.61 222 

2.7 3.65 217

2.2 111 80,640

Jan. 10 (11 p.m.) 1,960 sec. -ft.; Jan. 26 (2 a.m.) 2,200 see. -ft.} Feb. 27 

ec.-ft.} Feb. 29 (9 a.m.) 1,700 sec. -ft.; Mar. 27 (6 a.m.) 1,250 see. -ft.; Mar. 

eo.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

(teologieal Surrey
194 CHOWCHILLA RIVER BASIN

Chowchllla River at Buchanan dam site, Calif.

Location.- Water-stage recorder, lat. 37°13', long. 120°00', in SWi sec. 22, T. 88., 

R. 18 E., 1.4 miles upstream from Raynor Creek and 5 miles west of Raymond. Altitude of gage, about 390 feet (from topographic map).

Drainage area.- 238 square miles.

Records available.- October 1921 to September 1923, October 1930 to September 1940.

Average discharge.- 10 years (1930-40) 121 second-feet.

Extremes.- Maximum discharge during year, 8,750 second-feet Jan. 26 (gage height, 11.58 

feet); minimum discharge observed, less than 0.1 second-foot on Sept. 15.

1921-23; 1930-40: Maximum discharge, 15,000 second-feet Mar. 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, and 1940.

Remarks.- Records good. No large diversions above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

a

3

4

s

6

7

8

9

10

11

IS

IS

14

IS

16

17

18

19

SO

SO. us

S3

24

25

26

27

SB

29

80

31

Oct.

5.5

27

70

29

15

16

15

13

10

8

7

6

5.6

5

4.5

4.2

3.9

3.7

3.8

3.9

5.9

3.9

3.7

4.5

5.5

7

6.5

6.5

6

5.5

5

MOT.

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

5.5

5.5

5.5

5.5

5.5

7

8

9

8

7.5

Pec.

7.6

7.5

7.5

7.5

7.6

7.6

7

7

7

S

30

34

IS

14

11

10

10

9.5

9.5

9

9

9

9

9.5

9

9

9

9

9

9

9

Jan.

11

24

177

2S1

131

62

80

734

1,010

2,090

2,370

1,030

530

263

178

134

110

96

84

73

67

63

60

57

1,260

3,340

755

456

299

242

204

Feb.

216

266

S20

990

592

396

378

284

237

212

191

172

155

404

379

244

263

304

231

204

193

195

999

529

417

695

2,240

1,530

1,390

-

Month

Peb 

Mar

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

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

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

Water year 1939-40. .....................

Mar.

1,040

715

583

a500

a450

390

352

323

304

277

263

246

22S

216

206

197

IS 6

178

167

159

153

147

139

133

137

153

792

339

268

310

1,270

Apr.

606

362

306

275

256

231

218

202

191

133

174

159

160

142

137

147

127

120

117

110

105

99

97

95

96

188

160

119

108

101

Seoondfoot-days

314.0

170.5

323.5

11,208.6

16,341

15,624 

10,826

6,231

1,726

413.5

48.5

7.4

3.0

51,033.4

May

96

92

37

37

86

35

80

77

73

70

64

61

58

54

51

50

49

50

47

43

41

38

36

34

33

32

32

31

30

30

29

|IqyiTBnm

70

9

34

526

3,340

2,240 

1,270

506

96

30

7

.3

.1

3,340

June

29

30

28

26

24

23

21

19

18

17

15

14

12

12

11

10

10

9.5

9.6

9.5

9.5

3.5

7.5

7

6

6

6.5

5

5

6

July

7

6

5

4.1

3.3

2.8

2.2

1.8

1.6

1.2

1.0

.9

.8

.9

.8

.8

.9

.3

1.0

.9

.3

.7

.6

.4

.4

.3

.3

.3

.3

.3

.3

Hintmmn

3.7

5

7

0

11

165 

133

95

29

5

.3

.2

.1

.1

Aug.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

»2

.2

.2

.2

.2

.2

.2

.2

Mean

10.1

6.68

10.6

30.7

527

539

349

174

55.7

13.3

1.56

.24

.10

139

Sept.

aO.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

a.l

a.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Run-off In 

acre-feet

623

338

662

22,240

32,410

30,990 

21,470

10,380

3,420

820

96

15

6

101,200

Peak discharge.- Jan. 10 (9j30 p.m.) 4,850 sec.-ft.; Jan. 26 (12i30 a.m.) 3,760 sec.-ft.; Feb. ; 

(7s30 p.m.J u.Sso sec.-ft.; Feb. 27 (1 p.m.) 4,090 sec.-ft.; Feb. 29 (11«30 a.m.) 2,770 sec.-ft.; 

Mar. 31 (10 a.m.) 2,010 sec.-ft.

a Ho gage-height record; discharge interpolated.

9-838 February 1936

UNITED STATES DEPARTMEHT OF THE IHTERIOR 

Geological Surrey
MERCED RIVER BASIN 195

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

Location.- Water-stage recorder, lat. 37°43'54", long. 119°33'2811 , at Happy Isles Bridge, 

0.4 mile downstream from Illilouette Creek and l£ miles southeast of Yosemite Lodge 

in Yosemite National Park, Mariposa County. Altitude of gage, about 4,000 feet (from 

topographic map).

Drainage area.- 181 square miles.

Records available.- August 1915 to September 1940.

Average discharge.- 25 years, 326 second-feet.

Extremes.- Maximum discharge during year, 2,620 second-feet May 25 (gage height, 6.72 

feet); minimum, 4.2 second-feet Sept. 30.

1915-40: 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 for periods of no gage-height record, which are 

fair. Small diversion above station for water supply of Yosemite Valley.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

1.3 4 2.0 45 2.9 209 4.4 760

1.4 6.5 2.2 67 3.2 294 5.0 1,100

1.5 11 2.4 99 3.5 392 5.5 1,445

1.7 23 2.6 137 3.S 502 6.5 2,360

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

57 

148 

214 

191 

206

191 

176 

155 

141 

133

139 

150 

148 

a!40 

a!25

al!5 

a!05 

a90 

a75 

a70

a65 

a 60 

a55 

a50 

a55

a60 

72 

84 

87 

76 

67

HOT.

60 

54 

48 

44 

41

38 

36 

34 

34 

32

31 

30 

28 

25 

24

23 

22 

22 

22 

21

21 

20 

19 

19 

19

21 

19 

18 

18 

19

Dec.

19 

19 

IS 

18 

19

19 

19 

19 

19 

21

34 

23 

23 

21 

21

20 

20 

19 

19 

19

16 

13 

17 

14 

9.5

13 

12 

14 

15 

15 

16

Jan.

19 

12S 

78 

84 

59

51 

60 

67 

79 

a95

a!30 

al!5 

a!05 

a95 

a85

a80 

a70 

a65 

a65 

a60

a60 

a60 

a60 

a70 

alOO

212 

169 

146 

133 

127 

127

Feb.

125 

115 

113 

131 

115

117 

121 

112 

106 

101

103 

103 

97 

96 

97

87 

96 

90 

80 

87

92 

87 

99 

119 

108

131 

144 

181 

196

Month

Oet 

Hoi 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

II

 lendar year 193 3 ......................

 ter year 1939-4 3......................

Mar.

169 

169 

157 

155 

150

157 

181 

220 

236 

214

186 

155 

148 

144 

152

166 

183 

191 

193 

214

261 

323 

417 

479 

552

576 

820 

597 

475 

442 

521

Apr.

446 

36S 

332 

304 

273

270 

307 

320 

355 

432

532 

671 

825 

969 

882

657 

614 

775 

915 

987

1,080 

1,240 

1,310 

1,230 

1,050

805 

653 

601 

609 

680

Secondfoot-days

3,500 

862 

563.5

70,040.0

2,854 

3,249 

9,003 

20,492 

53,653 

38,492 

8,285 

1,527 

333.8

142,814.3

May

963 

1,300 

1,380 

1,1SO 

1,100

1,180 

1,190 

1,440 

1,740 

2,000

2,200 

2,200 

2,170 

2,120 

2,070

2,040 

1,890 

1,820 

1,740 

1,830

2,070 

2,110 

2,100 

2,280 

2,170

1,690 

1,730 

1,780 

1,600 

1,340 

1,230

Maximum

214 

60 

34

1,070

212 

196 

820 

1,310 

2,280 

1,810 

593 

92 

SO

2,280

June

1,550 

1,460 

1,430 

1,510 

1,360

1,480 

1,510 

1,580 

1,600 

1,570

1,670 

1,750 

1,810 

1,680 

1,520

1,560 

1,570 

1,300 

1,140 

1,020

1,130 

1,130 

882 

845 

825

726 

666 

746 

726 

746

July

593 

556 

564 

548 

487

468 

442 

389 

361 

329

288 

267 

250 

239 

228

214 

199 

173 

157 

146

133 

121 

117 

119 

148

159 

139 

127 

121 

110 

99

Minimum

50 

18 

9.5

8

19 

80 

144 

270 

963 

666 

99 

21 

4.8

4.8

Aug.

92 

87 

79 

72 

67

65 

62 

61 

61 

61

61 

61 

62 

61 

60

56 

52 

a45 

H39 

a36

a33 

a30 

a29 

a28 

a27

h26 

a25 

a24 

a23 

a21 

a21

Mean

113 

28.7 

18.2

192

92.1 

112 

290 

683 

1,731 

1,283 

267 

49.3 

11.1

390

Sept.

a20 

a20 

a20 

a20 

a!9

a!8 

a!7 

a!6 

a!4 

al3

a!2 

all 

10 

9.5 

9.5

9.5 

9.5 

9 

9 

8.5

7.5 

7.5 

6.5 

6 

6

6 

5 

5 

5 

4.8

Run-off in 

acre-feet

6,940 

1,710 

1,120

138,900

5,660 

6,440 

17,860 

40, 650 

106,400 

76,350 

16,430 

3,030 

662

283,300

a No gage-height record; discharge computed on basis of known range of stage and records for stations at Fohono Bridge and Tenaya Creek near Yosemite. 

h Discharge computed from staff-gage reading.

9-832 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
196 MERCED RIVER BASIN

Merced River at Pohono Bridge, near Yosemite, 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 Yosemite Lodge, in Yosemite 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 1940.

Average discharge.- 23 years (1917-40), 563 second-feet.

Extremes.- Maximum discharge during year, 4,750 second-feet May 13 (gage height, 8.45 

reet); minimum 22 second-feet September 28-30.

1916-40: Maximum discharge, 22,000 second-feet Dec. 11, 1937 (gage height, 19.1 

feet), by computation of flow over diversion dam for Yosemite powerhouse, about 1 mile 

downstream; minimum, 3.3 second-feet Sept. 29, Oct. 1, 1924.

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

fair. Small diversion above station for Yosemite Valley water supply.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet)

0.7 

.9

1.1

20

32

49

72

103

1.8 

2.1 

2.4 

2.8 

3.2

159

221

296

420

565

3.6 

4.0 

4.5 

5.0 

5.5

735

930

1,220

1,520

1,870

6.0 

6.5 

7.0 

7.5 

8.0

2,240

2,640

3,100

3,620

4,200

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

82

23

84

25

26

27

88

29

30

31

Oct.

74

a!80

a280

249

282

299

272

226

195

X79

175

181

1S1

177

167

153

136

119

107

95

86

78

74

71

76

86

95

110

119

114

101

HOT.

92

82

75

69

66

59

56

54

52

50

49

47

44

43

42

39

39

39

38

38

38

38

37

37

36

36

36

35

35

35

-

Dec.

35

35

34

34

34

34

34

34

34

38

54

42

38

38

38

34

33

33

32

32

31

30

30

30

30

29

29

29

30

30

30

Jan.

31

324

a205

aSOO

a!70

a!45

a!30

a!65

a200

a270

a350

a 320

a290

a260

a240

a205

a!95

a!86

al70

a!70

a!60

a!55

alBO

a!45

a235

a500

413

357

313

288

274

Feb.

264

252

277

282

254

277

249

235

226

228

228

217

210

219

203

197

208

201

187

193

199

203

272

266

264

313

406

455

469

-

Month

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

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

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

Water year 1939-40. .....................

Mar.

389

383

357

345

339

342

383

476

511

462

396

333

324

321

351

389

420

441

455

553

645

790

950

1,030

1,390

1,390

1,920

1,210

al,090

al,070

al,180

Apr.

al.010

aSBO

a770

aTIO

a620

a620

a720

a740

aSSO

al,010

al,230

al,510

al,830

a2,100

al,910

al,460

al,400

al,730

2,000

2,110

2,300

2,600

2,720

2,580

2,240

1,760

1,440

1,350

1,370

1,550

-

Seoondfoot-days

4,737

1,436

1,048

121,810

7,215

7,454

20,635

45,070

97,960

52,680

10,397

2,298

880

251,810

May

2,140

2,790

2,960

2,630

2,350

2,500

2,530

2,870

3,330

3,800

4,160

4,140

4,080

3,850

3,680

3,640

3,420

3,330

3,100

3,240

3,530

3,520

3,490

3,800

3,590

2,810

2,800

2,860

2,630

2,300

2,090

yqyJBpma

299

92

54

1,940

500

469

1,920

2,720

4,160

2,430

744

130

38

4,160

June

2,430

2,300

2,220

2,300

2,110

2,220

2,160

2,220

2,220

2,160

2,190

2,260

2,300

2,160

2,010

1,960

2,020

1,740

1,540

1,360

1,430

1,470

1,190

1,090

1,070

945

855

915

915

920

-

July

744

690

694

668

597

565

537

490

448

413

367

336

313

299

280

266

249

223

203

189

175

163

157

155

179

195

177

165

163

155

142

HH T*1 Iffflini

71

35

29

24

31

187

321

620

2,090

865

142

38

22

22

Aug.

130

123

114

107

100

' 95

92

89

87

86

87

87

87

86

82

78

71

66

62

58

55

53

50

48

48

48

45

44

42

40

38

Mean

153

47.9

33.8

334

233

257

666

1,502

3,160

1,756

335

74.1

29.3

688

Sept.

38

38

37

38

37

37

35

34

33

31

30

29

29

29

28

28

28

28

28

27

26

25

25

25

24

24

23

22

22

22

-

Run-off In 

acre-feet

9.400

2,850

2,080

241,600

14,310

14,780

40,930

89,390

194,300

104,500

20,620

4.56O

1,750

499,500

a Ho gage-height record; discharge computed on basis of records for station at Happy Isles Bridge 

and Tenya Creek near Yosemite.

9-238 February 1936

TOITED STATES DEPARTMEHT OF THE INTERIOR 

Geological Surrey
MERCED RIVER BASIN 197

Merced River at Klttrldge, Calif.

Location.- Water-stage recorder, lat. 37°39', long. 120°11', In sec-. 26, T. 3 S., R. 

16 E., 0.2 mile downstream from Whites Gulch, a quarter of a mile downstream from 

Klttrldge, and 3i miles downstream from Bagby. Altitude of gage, about 750 feet 

(from topographic map).

Drainage area.- 935 square miles.

Records available.- November 1928 to September 1940. November 1922 to November 1928, at 

site it miles downstream.

Average discharge.- 14 years (1923-27, 1929-30, 1931-40), 1,178 second-feet.

Extremes.- Maximum discharge during year, 13,500 second-feet Feb. 27 (gage height, 13.70 

feet); minimum, 41 second-feet Sept. 29.

1922-40: Maximum discharge, 59,000 second-feet Dec. 11, 1937 (gage 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, 19E5.

Remarks.- Records good. No large diversions above station.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

0.5 

1.0 

1.5 

2.0

40

92

164

266

2.5 

3.0 

3.5 

4.0

390

544

730

950

4.5 

5.0 

6.O 

7.0

1,205

1,500

2,210

3,130

e.o

9.0

10.0

11.5

4,220

5,470

6,900

9,330

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

S

3

4

5

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

129

159

500

433

396

' 430

481

401

349

314

290

290

293

261

266

244

220

200

177

162

148

135

128

188

156

162

161

171

203

210

196

HOT.

175

161

150

140

134

129

122

118

114

113

109

108

105

102

101

98

96

93

92

92

92

91

90

86

91

114

121

108

97

93

-

Dec.

92

92

92

91

90

88

90

90

91

101

242

244

162

134

121

117

110

108

105

104

101

98

93

92

93

90

S7

90

90

92

95

Jan.

101

213

1,340

1,230

846

524

572

2,130

3,390

4,800

6,630

3,410

1,760

1,170

910

770

669

605

551

510

478

454

439

430

2,690

7,150

2,640

1,690

1,300

1,100

995

Feb.

975

928

2,000

2,790

1,750

1,520

1,580

1,270

1,100

990

923

856

792

1,240

1,310

1,080

1,100

1,180

1,040

950

896

S92

3,140

2,680

2,000

2,550

9,300

6,100

6,390

_

-

Month

Hovenber. .................................

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

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

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

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

Water year 1939-40......................

Har.

4,100

2,900

2,310

1,970

1,730

1,570

1,510

1,530

1,560

1,470

1,340

1,180

1,100

1,060

1,O6O

1,090

1,130

1,140

1,140

1,240

1,380

1,540

1,790

1,940

2,350

2,600

5,930

3,320

2,790

4,500

8,820

Apr.

4,340

3,100

2,600

2,280

2,040

1,900

1,940

1,900

1,940

2,12O

2,460

2,860

3,350

3,870

3,790

2,830

2,500

2,910

3,460

3,670

3,940

4,450

4,700

4,560

4,070

3,230

2,63O

2,350

2,280

2,420

Seoondfoot-days

7,812

3,335

3,385

222,666

51,497

59,322

69.O90

90.47O

154,230

71,430

13,476

3,228

1,555

528, SSO

"ay

3,190

4.47O

4,920

4,530

3.79O

4,000

4.01O

4,430

5,290

5,960

6,540

6,480

6,460

6,160

5,77O

5,710

5,300

5,380

4,910

4,960

5,540

5,400

5,380

5,950

5,300

4,400

4,240

4,400

4,110

3,620

3,080

Maxfcnu*

500

175

244

3,300

7,150

9,300

8,820

4.7OO

6,540

3,630

1,02.0

178

64

9,30O

June

3,580

3,630

3,260

3,370

3,070

3,130

3,130

3,120

3,120

2,990

2,930

3.OOO

3,020

2,890

2,670

2,470

2,570

2,300

1,990

1,760

1,740

1,830

1,560

1,370

1,330

1,220

1,090

1,080

1,140

1,120

July

1,020

869

846

833

770

696

673

627

562

527

4S1

433

401

332

365

344

339

317

290

270

262

237

222

212

204

226

242

218

208

206

194

MVnlroviB

128

86

67

31

101

792

1,060

1,900

3,080

1,080

194

61

42

42

Aug.

178

166

158

148

138

132

125

121

118

113

112

112

112

110

109

108

106

101

93

90

84

77

77

74

70

70

68

68

65

64

61

Mean

252

111

109

610

1,661

2,046

3,229

3,016

4,975

2,383

435

104

51.6

1,445

Sept.

59

68

67

68

63

63

64

61

68

56

54

61

60

50

50

51

50

51

51

51

51

48

47

45

44

44

43

42

42

43

-

Run-off in 

acre-feet

15,490

6,610

6,710

441,700

102,100

117,700

137,000

179,400

305,900

141,800

26, 73O

6,400

3,080

1,049,000

Peak discharge.- Jan. 10 (11:30 p.m.) 10,300 sec.-ft.5 Jan. 25 (12 p.m.) 12,600 sec.-ft., Feb. 

(11 a.m.) 13,560 sec,-ft.; Mar. 27 (7 a.m.) S.820 sec.-ft.; Mar. 31 (4j30 a.m.) 12,000 sec.-ft.; 

May 11 (4 a.m.) 7,710 sec.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OF THB INTERIOR 

Geological Surrey
198 MERCED RIVER BASIN

Lake McClure at Exchequer, Calif.

Location.- Indicator In powerhouse, lat. 37°35', long. 120°16', In SWi sec. 13, T. 4

 S., R. 15 E., at Exchequer Dam on Merced River and 5 miles northeast of Merced Falls. 

Datura of gage Is at mean sea level.

Drainage area.- 1,020 square miles.

Records available.- April 1926 to September 1940.

Extremes.- Maximum contents during year, 385,900 acre-feet June 13 (elevation, 708.7

 feet)'; minimum, 4,000 acre-feet Oct. 1 (elevation, 483.0 feet).

1926-40: 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 dam completed In 1926; storage

 began In April 1926. Capacity, 380,900 acre-feet between elevations 442.6 feet (bottom 

of sluice valve) and 707.0 feet (top of spillway gates) above mean sea level. Figures 

herein represent total contents; dead storage, 400 acre-feet, or less. Water passes 

through power plant at dam and down Merced River to diversion dam of Merced Irrigation 

District's main canal. Contents are computed from gage height at midnight.

Cooperation.- Gage-height record furnished by Merced Irrigation District In connection 

with a Federal Power Commission project.

Contents, in acre-feet, water year October 1939 to September 1940

u«y

i

.2

S

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

4,000

4,170

5,060

5.7SO

6,380

7,200

8,050

S,790

9,420

9,960

10,400

10,900

11,400

11,900

12,300

12,600

13,000

13,300

13,600

13,800

14,000

14,200

14,400

14,600

14,800

15,100

15,300

15,600

15,800

16,200

16,600

Mov.

16,800

17,000

17,200

17,400

17,600

17,800

18,000

18,200

18,200

13,400

13,500

18,600

18,700

13,900

19,000

19,100

19,200

19,300

19,400

19,500

19,600

19,700

19,700

19,800

19,900

20,000

20,200

20,300

20,400

20,500

-

Dec.

20,600

20,600

20,800

20,800

20,900

21,000

21,100

21,200

21,300

81,500

21,900

22,400

22,600

22,800

23,000

23,200

23,300

23,400

23,500

23,600

23,300

23,900

24,000

24,100

24,100

24,200

24,300

24,400

24,600

24,600

24,300

Jan.

25,000

25,300

23,200

30,900

32,900

34,100

35,200

40,000

43,500

60,300

77,300

85,600

89,700

92,700

94,700

96,300

97,900

99,100

100,300

101,200

102,200

103,200

103,900

104,900

114,400

131,300

137,100

140,900

143,600

146,000

147,300

Feb.

147,800

147,500

149,700

153,700

155,400

156,400

157,500

157,900

158,100

157,700

157,300

156,800

155,900

157,300

153,100

158,200

158,200

153,400

158,400

158,100

159,900

161,700

168,800

174,900

179,700

133,300

203,400

215,200

227,600

_

-

Mar.

234,100

233,200

240,300

242,500

243,700

243,900

244,600

245,400

246,300

246,800

246, 600

246,100

245,400

245,100

244,600

244,600

244,400

244,400

244,400

244,400

244,600

245,100

246,300

247,500

243,500

243,500

252,000

250,000

247,000

249,500

261,000

Apr.

261,200

253,200

254,000

250,500

247,000

244,600

244,200

244,200

244,200

244,600

245,100

245,400

245,800

246,600

246,600

243,900

241,800

241,000

243,900

246,100

246,100

247,300

248,000

247,500

246,100

244,400

243,900

244,200

244,400

245,100

-

May

243,000

253,000

256,000

256,000

255,200

255,000

254,800

255,000

257,200

261,000

264,600

266,600

269,000

270,800

271,600

272,100

271,300

272,100

271,300

270,300

270,800

273,100

277,300

232,900

234,300

232,900

232,100

282,900

233,200

232,600

232,400

June

233,500

283,700

283,200

232,900

232,600

233,200

284,500

285,100

285,400

285,400

235,400

235,400

2S5, 900

235,600

235,400

285,100

285,100

234,300

284,300

233,700

283,200

233,200

232,600

281,600

230,500

279,100

277,600

276,000

274,700

273,100

-

July

271,300

269,500

267,700

265,600

263,500

261,500

259,000

256,300

854,200

251,800

249,000

246,300

243,700

240,800

237,900

235,000

232,800

229,200

226,200

223,200

220,300

217,300

214,300

212,800

808,200

205,300

202,100

199,200

196,200

193,300

190,100

Aug.

187,300

134,300

131,500

178,700

175,700

172,900

170,100

167,400

164,800

162,000

159,300

156,600

153,900

151,200

143,500

146,000

143,100

140,400

137,600

134,300

132,100

129,200

126,500

183,600

120,800

113,000

115,200

112,600

109,800

109,700

104,600

Sept.

102,100

99,400

96,900

94,500

92,300

90,200

83,100

36,000

34,000

31,900

79,900

77,900

75,800

73,700

71,400

69,200

67,000

64,800

62,600

60,400

58,100

56,000

54,000

51,900

49,800

47,800

45,900

43,900

41,900

40,000

-

Monthly elevation and contents, water year October 1939 to September 1940

Date

Dec. 31...................

Calendar year 1939 ......

Sapt.30.. .................

Water year 1939-40......

Elevation 

(feet)

482.2 

526.1 

533.6 

540.7

-

645.9 

685.4 

699.2 

692.3 

707.4 

703.9 

668.3 

61S.5 

561.7

-

Contents 

(acre-feet)

3,360 

16,600 

80,500 

84,300

-

147,800 

227,600 

261,000 

245,100 

282,400 

273,100 

190,100 

104,600 

40,000

-

Change In contents 

during month. 

Caere-feet)

+12,740 

+3,900 

+4,300

-154,900

+123,000 

+79,300 

+33,400 

-15,900 

+37,300 

-9,300 

-83,000 

-85,500 

-64,600

+36,140
MERCED RIVER BASIN 199

Merced River at Exchequer, Calif.

Location.- Long distance water-stage transmitter, lat. 37°35', long. 120°17', about on 

line between sees. 14 and 23, T. 4 S., R. 15 S., 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 map).

Drainage area.- 1,035 square miles.

Records available.- October 1922 to September 1940. November 1915 to October 1922, at 

site 1 mile upstream. . . ,

Average discharge.- 24 years (1916-40), 1,185 second-feet; affected by storage in Lake 

McClure since Apr. 20, 1926. ,. . 1,4. r, 0 ~

Extremes.- Maximum discharge during year, 5,480 second-feet May 12 (gage height, f.at

 feet); minimum, 8 second-feet Jan. 27-30.

1915-40- Maximum discharge observed, about 22,000 second-feet (unregulated) Jan. 

17, 1916 (gage height, 20.0 feet, former site and datum), from rating curve extended 

above 9,000 second-feet; minimum discharge, 5 second-feet Jan. 5, 1935.

Remarks.- Records good October to March; excellent April to September. No large dlver-

 sTons above station. Flow regulated by Lake McClure, (p. 198).

Cooperation.- Assistance in collecting gage-height record and results of four discharge 

measurements furnished by Merced Irrigation District.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

-0.3 

-.1 

+ .1

0.8 

1.1 

1.5 

2.0 

3.0

146

218

334

510

1,015

4.0 

5.0 

6.0 

7.0 

7.S

1,650

2,430

3,320

4,420

5,400

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

SO

21

22

23

24

25

26

27

28

29

80

31

Oct.

78

7S

74

76

7S

66

50

44

44

43

43

46

47

48

46

47

46

46

46

44

44

44

44

44

44

44

44

44

44

44

44

HOT.

44

44

44

44

44

44

44

44

44

44

44

44

43

42

43

41

41

42

42

43

46

46

47

47

4S

43

50

50

50

51

-

Dec.

51

52

53

53

53

53

53

43

46

50

48

47

47

48

47

48

48

48

48

48

48

48

48

4S

48

48

41

39

41

41

41

Jan.

42

42

41

37

32

31

31

32

29

11

21

S.5

S.5

8.5

8.5

S.5

8.5

10

19

19

19

19

20

20

27

9

S

S

8

S

47

Feb.

1,110

1,120

1,130

1,130

1,140

1,150

1,140

1,140

1,140

1,140

1,140

1,140

1,140

1,150

1,150

1,150

1,150

1,140

1,140

1,140

34

33

26

11

21

1,160

1,210

1,210

1,240

_

-

Month

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

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

toy.. .....................................

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

Water year 1939-40. .....................

Mar.

1,230

1,220

1,200

1,200

1,200

1,200

1,200

1,200

1,210

1,220

1,520

1,500

1,480

1,190

1,190

1,190

1,190

1,190

1,190

1,190

1,190

1,280

1,290

1,360

1,S70

2,960

4,640

4,680

4,620

4,3SO

4,800

Apr.

4,850

4,830

4,820

4,190

3,830

3,030

2,150

1,930

1,930

1,930

2,250

2,790

3,080

3,420

3,S90

4,080

3,610

3,120

1,930

2,700

3,820

3,850

4,400

4,830

4,830

4,120

2,610

2,240

2,240

2,010

-

Secondfoot-days

1,574

1,34S

1,480

301,306

641.0

27,725

57,980

99,310

134,170

74,640

53,920

45,350

31,789

529,927.0

May

1,780

2,040

3,490

4,520

4,090

4,090

4,110

4,150

4,140

4,020

4,680

5,360

5,340

5,320

5,360

5,360

5,350

5,350

5,340

5,350

5,240

4,100

2,S70

3,320

5,170

5,030

4,440

3,860

4,020

3,800

3,080

Mflyi yfimn

7S

51

53

1,670

47

1,240

4,800

4,S50

5,360

3,460

1.S30

1,620

1,270

5,360

June

2,980

3,460

3,430

3,330

3,200

2,670

2,430

2,720

2,970

2,9SO

2,8SO

2,S10

2,870

2,900

2,780

2,600

2,530

2,450

2,250

2,030

1,870

1,850

1,840

1,830

1,830

1.S30

1,830

1,830

1,830

1,830

-

July

1,830

1,790

1,760

1,740

1,730

1,760

1,770

1,780

1,780

1,780

1,780

1,780

1,780

1,780

1,770

1,760

1,740

1,740

1,750

1,710

1,700

1,700

1,700

1,700

1,700

1,720

1,690

1,680

1,680

1,690

1,650

Minimum

43

41

39

37

8

11

1,190

1,930

1,780

1,S30

1,650

1,300

949

S

Aug.

1,620

1,610

1,580

1,560

1,530

1,520

1,490

1,470

1,460

1,460

1,460

1,460

1,460

1,460

1,460

1,460

1,460

1,460

1,460

1,460

1,450

1,450

1,450

1,450

1,440

1,420

1,420

1,370

1,360

1,340

1,300

Mean

50.8

44.9

47.7

825

20.7

956

1,870

3,310

4,328

2,48S

1,739

1,463

1,060

1,448

Sept.

1,270

1,270

1,240

1,190

1,140

1,090

1,050

1,030

1,030

1,030

1,030

1,030

1,030

1,050

1,060

1,060

1,060

1,060

1,060

1,060

1,050

1,050

1,040

1,000

993

988

976

954

949

949

-

Run-off in 

acre-feet

3,120

2,670

2,940

597,600

1,270

54,990

115,000

197,000

266,100

14S.OOO

106,900

89,950

63,050

1,051,000

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
200 MERCED RIVER BASIN

Merced River near Livingston, Calif.

Location.- Water-stage recorder, lat. 37°23'29", long. 120°47'10lt , in SEi sec. 20, T. 6 

S., R. 11 E., 3i miles west of Livington and about 10 miles upstream from mouth. 

Altitude of gage, 82 feet (from topographic map).

Drainage area.- 1,245 square miles.

Records available.- March 1922 to September 1924, October 1925 to September 1940.

Average discharge.- 15 years (1925-40), 670 second-feet.

Extremes.- Maximum discharge during year, 6,540 second-feet Mar. 31 (gage height, 17.10 

feet); minimum, 101 second-feet Nov. 12.

1922-24; 1925-40: Maximum discharge, 11,100 second-feet Feb. 12, 1938 (gage height, 

21.44 feet present datum), from rating ourve extended above 8,500 second-feet; minimum 

observed, 18 second-feet Aug. 30, 1924.

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

Practically entire flow is diverted above station during irrigation season, and return 

flow enters above. Flow regulated by Lake McClure.

Cooperation.- Water-stage recorder graph furnished by Merced Irrigation District.

Discharge, in second-feet, water year October 1939 to September 1940

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.

143

142

141

139

139

144

144

141

134

125

125

120

119

114

113

109

109

109

109

107

106

104

106

106

107

106

108

109

112

113

110

HOT.

109

109

108

108

107

106

104

104

103

106

104

102

108

107

106

107

108

109

109

110

112

110

112

114

118

115

115

114

114

114

-

Dec.

114

113

113

115

118

115

114

115

115

115

121

131

136

137

134

134

132

132

132

132

128

124

127

128

128

128

130

130

130

130

130

Jan.

130

136

a!42

al48

155

165

174

191

206

615

1,340

1,540

618

384

304

256

228

204

186

174

166

159

155

156

159

570

536

313

246

215

196

Feb.

218

857

1,180

1,710

1,430

1,330

1,450

1,380

1,320

1,300

1,320

1,300

1,290

1,370

2,220

1,510

1,390

1,420

1,450

1,360

1,340

629

386

523

379

462

1,530

2,350

1,890

-

Month

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

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

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

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

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

Water year 1939-40. .....................

Mar.

1,950

1,600

1,510

1,450

1,430

1,410

1,390

1,390

1,380

1,390

1,480

1,650

1,640

1,580

1,380

1,360

1,350

1,350

1,360

1,320

1,150

1,120

1,140

1,110

1,090

1,470

3,010

4,440

4,630

4,670

5,460

Apr.

5,980

5,340

5,230

5,210

4,580

4,190

3,430

2,650

2,320

2,300

2,160

2,340

2,800

2,980

3,220

3,490

3,560

3,150

2,550

1,690

2,120

2,920

2,940

3,340

3,660

3,840

3,270

2,080

1,620

1,550

-

Secondfoot-days

3,713

3,272

3,881

107,454

10,167

36,294

58,660

96,510

92,560

32,243

7,166

5,765

5,516

355,747

May

1,340

1,060

1,160

2,500

3,210

2,990

2,960

2,950

2,930

2,820

2,750

3,320

3,790

3,840

3,840

3,850

3,870

3,840

3,840

3,860

3,820

3,720

2,840

1,690

2,160

3,490

3,490

2,980

2,610

2,650

2,390

^^Trlimini

144

118

137

1,590

1,540

2,350

5,460

5,980

3,870

2,150

311

220

254

5,980

June

1,810

1,740

2,150

2,060

1,940

1,780

1,310

1,080

1,260

1,480

1,500

1,380

1,290

1,330

1,310

1,230

1,110

1,050

949

772

615

479

414

372

324

311

298

287

295

317

-

July

311

298

287

276

260

220

228

216

204

200

204

178

a200

a200

a220

a230

a240

a260

a250

a240

a230

a220

234

204

186

204

220

244

254

234

214

IHn^Tmmi

104

102

113

102

130

218

1,090

1,550

1,060

287

178

166

148

102

Aug.

180

186

173

192

190

182

175

175

176

173

188

180

166

173

175

176

180

178

206

198

196

175

176

178

204

220

208

210

194

184

198

Mean

120

109

125

294

328

1,252

1,892

3,217

2,986

1,075

231

186

184

972

Sept.

226

252

252

254

216

178

178

210

198

166

160

155

149

153

158

194

173

148

151

162

155

190

192

176

175

158

171

186

186

194

-

Run-off in 

acre-feet

7,360

6,490

7,700

213,100

20,170

71,990

116,400

191,400

183,600

63,950

14,210

11,430

10,940

705,600

a No gage-height record; discharge for Jan. 3, 4, Interpolated; that for July 13-22 computed on 

basis of recorded range of stage and weather records at Merced.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
MERCED RIVER BASIN 201

Tenaya Creek near Yosemite, Calif.

Location.- Water-stage recorder, lat. 37°44'33", long. 119°33'25", in Yosemite National 

Park, at bridge, 0.7 mile upstream from mouth and 1.9 miles east of Yosemite 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 1940.

Average discharge.- 27 years (1913-40), 103 second-feet.

Extremes.- Maximum discharge during year, 985 second-feet May 12 (gage height, 4.89 

reet); minimum, 0.9 second-feet Sept. 29, 30.

1904-9. 1912-40: 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, 1929.

Remarks.- Records good. No diversions.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6

7 

8 

9

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

51

Oct.

1.6 

7 

21 

29 

34

35 

3S 

31 

24 

20

18 

16 

14 

13

11

9.5 

8 

7 

6 

5

4.9 

4.3 

4.1 

4.3 

6

11 

14 

16 

16 

14 

12

HOT.

10 

9.5 

9 

8 

7.5

7 

6.5 

6.5 

6 

6

5.5 

5.5 

5 

5 

4.9

4.6 

4.3 

4.3 

4.1 

3.8

3.6 

3.5 

3.5 

3.3 

3.3

3.2 

3.2 

3.2 

3.0 

3.0

Dec.

3.0

2J7 

2.7

2.7 

2.7

s'.S

2.7 

2.7 

2.5 

2.5 

2.5

2.7 

2.7 

2.7

2.7

2.7 

2.7 

2.7 

2.7 

2.7

2.5 

2.5 

2.5

2.7 

2.7 

2.7

Jan.

2.8 

56 

43 

44 

34

30 

29 

35 

41 

54

85 

80 

64 

56 

48

43 

40 

38 

35 

34

32 

32 

31 

31 

48

108 

85 

71 

61 

56 

52

Feb.

49 

47 

52 

52 

52

56 

50 

47 

45 

45

44 

42 

39 

39 

38

39 

39 

39 

38 

38

39 

38 

48 

50 

53

61 

82 

98 

94

Month

Oat 

Nov 

Dec

C

Jan 

Pet 

Mar

Apr 

Bay 

Jun 

Jul

Aug 

Sep

H

alendar year 193

11.....................................

ater year 1939-4 0......................

Mar.

85 

79 

71 

68 

62

62 

66 

77 

84 

76

65 

58 

52 

52 

56

58 

66 

68 

73 

92

110 

139 

178 

190 

286

280 

302 

205 

174 

193 

186

Apr.

152 

124 

110 

106 

90

92 

108 

108 

130 

166

214 

268 

351 

403 

358

247 

242 

328 

389 

414

472 

509 

532 

509 

428

315 

245

229 

286

Secondfoot-days

454.7 

155.8 

82.4

19,991.0

1,498.8 

1,453 

3,613 

8,147 

18,496 

7,085 

588.3 

66.4 

36.0

41,676.4

May

436 

585 

612 

547 

479

513 

535 

612 

672 

724

740 

756 

740 

688 

672

664 

648 

624 

582 

608

640 

624 

648 

692 

624

518 

511 

508 

474 

424 

396

ynx1,nn^n

38

10 

3.0

370

108 

98 

302 

532 

756 

419 

59 

2.9 

1.5

756

June

419 

396 

385 

380 

35S

35S 

342 

342 

331 

31S

311 

303 

292 

275 

245

231 

219 

194 

169 

154

144 

138 

132 

117 

117

106 

92 

80 

72 

65

July

59 

58 

50 

46 

40

36

31 

2S 

26

21 

18 

16 

14 

13

12 

11 

10 

9 

8.5

8 

7.5 

7 

6.5 

5.5

4.8 

4.6 

4.2 

3.9 

3.6 

3.2

Minimum

1.6 

3.0 

2.5

1.5

2.8 

38 

52 

90 

396 

65 

3.2 

1.6 

.9

.9

Aug.

2.9 

2.8 

2.6 

2.6 

2.6

2.5 

2.4 

2.4 

2.4 

2.4

2.2 

2.2

2.2

2.1

2.1 

2.1 

2.0 

2.0 

2.0

2.0 

2.0 

2..0 

1.9 

1.9

1.8 

1.8 

1.6 

1.6 

1.6 

1.6

Mean

14.7 

5.19 

2.66

54.8

48.3 

50.1 

117 

272 

597 

236 

19.0 

2.14 

1.20

114

Sept.

1.5 

1.5 

1.5 

1.5 

1.5

1.4 

1.3 

1.3 

1.3 

1.3

1.3 

1.2 

1.2 

1.2 

1.2

1.2 

1.1 

1.2 

1.2 

1.2

1.1 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

.9 

.9

Run-off in 

acre-feet

902 

309 

163

39,680

2,970 

2,880 

7,170 

16,160 

36,690 

14,050 

1,170 

132 

71

82,670

400454 0-41-14

UNITED STATES DEPARTMENT

Geological Survey
202 ORESTIMBA CREEK BASIN 

Orestimba Creek near Newman, Calif.

Location.- Water-stage recorder, lat. 37°19'09", 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 wiles west of 

Newman. Altitude of gage, about 190 feet (from topographic map).

Drainage area.- 129 square miles.

Records available.- January 1932 to September 1940.

Extremes.- Maximum discharge during year, 3,040 second-feet Feb. 27 (gage height, 4.90 

feet); no flow for several months.

1932-40: Maximum discharge, 3,440 second-feet Feb. 8, 1932 (gage height, 5.15 

feet), from rating curve extended above 500 second-feet on basis of slope-area computations; no flow for several months in each year.

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

fair. No large diversions.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

SO

Si

22

23

24

25

26

27

28

29

SO

31

Oct. HOT. Dec. Jan.

aO

alO

a20

a!5

a 10

aO

aO

a50

a200

a450

a 500

a300

a!20

a 50

a20

7

4.5

2.8

1.7

.8

.4

.2

0

0

2.9

288

138

64

43

31

32

Feb.

5S

62

187

1SS

92

60

43

32

24

20

16

12

11

27

32

19

21

31

21

17

16

18

52

39

100

263

740

1,S40

910

-

Month

Calendar year 1939 ......................

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

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

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

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

Water year 1939-40......................

Mar.

341

189

130

97

78

64

55

48

43

38

37

33

30

28

26

26

24

22

21

19

18

17

16

15

16

16

31

23

25

90

183

Apr.

113

70

50

42

36

30

26

24

21

19

17

16

15

14

13

12

11

10

10

9.5

8.5

8

8

e

9

15

13

10

S.5

7

Secondfoot-days

0

0

0

135.3

2 ,361. 3

4,351

1 799

"653.5

^9 "V 1

Q

0

0

9,193.9

May

5

4.5

3.5

3.0

3.0

2.5

l.S

1.3

.9

.8

.5

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Maximum

0

0

0

50

500

1,240

341

113

5

0

0

0

0

1,240

June July

Minimum

0

0

0

0

0

11

15

7

.1

0

0

0

0

0

Aug.

Mean

0

0

0

.37

76.2

150

58.0

21.8

o' 94

0

0

0

25.1

Sept.

Run-off in 

acre-feet

0

0

0

269

4,680

8,630

3,570

1,300

58

0

0

0

0

18,240

Peak discharge.- Probably Jan. 11, 698 sec.-ft.; Jan. 26 (2:30 a.m.) 356 sec.-ft.; 

.m.) 467 sec.-ft.; Feb. 27 (5:30 p.m.) 3,040 sec.-ft.; Mar. 30 (8 p.m.) 240 sec.-ft.

a Ho gage-height record; discharge computed on basis of precipitation records and r 

Chowchilla howchilla River River nt-. at RurVhMTifln Buchanan clam dam Mfcft. site

-ft.; Feb. 3, (5 

records for

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
TUOLUMNE RIVER BASIN 

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.

203

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, 

1& miles downstream from Falls Creek. Datum of gage Is at mean sea level.

Drainage area.- 460 square miles.

Records available.- May 1923 to September 1940 (1923-30, gage heights only).

Extremes.- Maximum contents during year, 348,800 acre-feet May 25 (elevation, 3,800.1 

reet); minimum, 27,400 acre-feet Jan. 1 (elevation, 3,565.5 feet).

1923-40: Maximum contents, 352,500 acre-feet June 4, 1938 (elevation, 3,802.0 

feet); no contents Jan. 5 to Mar. 9, 1939, Jan. 5-18, Jan. 21 to Feb. 13, 1930, Jan. 

22 to Mar. 18, 1931.

Remarks.- Reservoir Is formed by concrete gravity-type dam, completed to crest elevation 

3,726.5 feet In 1923 and raised to 3,812.0 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 mean sea level. 

Water flows down Tuolumne River 15 miles to Early Intake, where part Is diverted 

through Hetch Hetchy aqueduct to Moccasin Creek power plant. At Moccasin Creek diversion dam, water re-enters Hetch Hetchy aqueduct and flows Into Crystal Springs Reservoir, which supplies city of San Francisco. Surplus water Is spilled Into Don Pedro 

Reservoir at Red Mountain Bar. Hetch Hetchy Reservoir Is main storage unit of Hetch 

Hetchy water-supply system for San Francisco. Records show contents at midnight, all 

of which Is available for release.

Contents, in acre-feet, water year October 1939 to September 1940

Day

1

Z

s

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

50

31

Oct.

106,200

106,400

106,600

106,200

105, SOO

105, 500

105,200

104,600

104,100

103,300

102,600

101,800

101,000

100,200

99,400

98,600

97,400

96,500

95,600

94,700

93,800

93,100

92,300

91,300

90,700

90,100

89,400

88,900

38,400

87,900

87,000

Nor.

86,400

85,700

85,000

84,200

83,500

82,300

82,200

81,500

80,700

79,900

79,000

78,200

77,300

76,300

75,400

74,500

73,500

72,600

71,600

70,600

69,700

68,700

67,900

66,800

65,900

65,000

64,100

63,200

62,200

61,300

-

Dec.

60,300

59,400

58,400

57,400

56,600

55,600

54,700

53,800

52,800

51,800

50,800

50,000

49,100

48,100

47,000

45,300

44 , 800

43,600

42,600

41,500

40,300

39,200

38,000

36,800

35,700

34,200

33,000

31,800

30,500

29,500

28,400

Jan.

27,400

29,000

29,400

30,100

30,000

29,700

29,500

29,900

30,800

32,600

35,000

36,400

36,600

36,700

36,500

36,300

35,900

35,500

35,000

34,500

34,000

33,400

32,900

32,300

33,300

36,500

37,400

37,800

38,100

38,100

33,100

Feb.

33,100

33,000

38,200

33,600

38,900

39,300

39,500

39,500

39,400

39,300

39,200

39,100

33,600

38,800

38,600

38,400

38,200

38,000

37,600

37,400

37,000

36,900

38,000

33,500

38,900

39,800

42,400

44,300

45,800

-

-

Mar.

46,700

47,200

47,600

47,900

48,000

48,300

48,700

49,200

49,800

50,000

50,200

50,100

49,900

49,800

49,800

49,700

49,800

49,300

49,900

50,400

51,000

52,000

53,400

55,100

58,200

63,300

68,100

 7f , 400

7^,400

75,300

78,100

Apr.

79,600

80,700

81,500

32,100

32,500

32,900

83,400

84,000

84,900

36,200

S7, 800

90,100

93,100

96,800

100,100

102,400

103,900

106,100

109,100

112,600

116,500

121,400

126,900

131,800

135,700

138,200

140,300

141,700

143,000

144,700

-

May

143,200

153,900

160,100

165,400

169,500

173,800

178,800

185,200

193,700

203,800

215,200

226,200

237,500

248,100

253,000

268,000

277,600

286,500

294,400

303,100

313,800

324,700

336,200

347,000

348,800

348,200

348,200

348,400

348,000

347,200

346,800

June

347,400

347,000

347,200

347,400

347,400

347,600

347,600

347,600

347,600

347,600

347,300

348,000

348,000

347,800

347,400

347,400

347,400

346,800

346,300

346,100

346,300

345,700

345,100

344,900

343,700

341,400

340,600

339,300

340,400

342,200

-

July

343,200

343,400

343,400

343,200

343,000

343,000

342,800

342,600

342,400

342,200

341,300

341,400

340,800

340,300

339,500

338,900

337,900

337,200

336,400

336,000

335,200

334,500

333,700

332,900

332,400

331,600

330,800

329,900

329,300

328,300

327,400

Aug.

326,400

325,300

324,500

323,000

322,100

320,900

320,000

318,800

317,900

317,000

315,800

314,900

313,900

312 , 800

311,700

310,800

309,600

308,300

307,200

306,100

305.000

303,800

302,500

301,400

300,300

299,200

297,900

296,300

295,700

294,400

293,300

Sept.

291,800

290,200

288,200

286,400

284,300

282,300

280,400

273,400

276,400

274,400

272,500

270,500

268,700

267,100

265,400

263,600

261,900

260,100

258,200

256,400

254,700

253,000

251,200

249,300

247,600

245,900

244,200

242,300

240,600

238,900

-

Monthly elevation and contents, water year October 1939 to September 1940

Date

Water year 1939-40. ......

Elevation 

(feet)

_

Contents 

(acre- feet)

28 * 400

346 800

_

Change in contents 

during month 

(acre-feet)

 19 700

2 p. ' 700

 54 400 *

+132.200
204 TUOLUMNE RIVER BASIN

Tuolumne River near Hetch Hetchy, Calif,

Location.- Water-stage recorder, lat. 37°56', long. 119°48', In SEi sec. 17, T. 1 N., R. 

ao £., 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 1940.

Average discharge.- 25 years (1915-40), 937 second-feet.

Extremes.- Maximum discharge during year, 6,200 second-feet May 25 (gage height, 11.43 

reet); minimum, 3.4 second-feet (regulated) Dec. 8.

1915-40: 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 except those for period of doubtful or no gage-height record, 

wnicn are good. No diversions. Flow regulated by Hetch Hetchy Reservoir (p. 203 ).

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

3.3 

3.6 

4.0 

4.5

188

230

292

380

5.0 

6.0 

7.0 

8.0

480

730

1,090

1,640

10.0

11.3

3,570

5,910

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

IS

16

17 die

19

20

21

22

23

24

25

26

27

28

29

SO

SI

Oct.

510

484

472

682

706

745

757

733

712

d710

d720

d740

d750

d750

d730

d720

d710

d690

d640

d620

d620

d620

d610

d600

518

538

550

552

540

540

632

Hov.

524

540

548

545

530

496

500

513

506

528

536

 526

524

530

547

544

544

536

537

542

544

538

536

545

538

522

512

524

534

550

-

Dec.

557

535

518

528

533

543

512

528

550

570

570

514

515

571

621

635

620

608

602

598

602

618

670

643

640

643

667

685

667

608

649

Jan.

585

486

554

496

476

480

470

440

410

290

210

440

500

470

450

490

540

560

560

550

560

570

560

560

520

380

530

520

500

520

530

Feb.

530

530

510

440

430

450

460

480

490

490

490

470

470

480

480

500

500

500

500

500

520

520

360

480

490

420

200

220

240

_

-

Month

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

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

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

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

Water year 1939-40......................

Mar.

250

400

400

400

400

420

450

460

460

490

500

524

522

522

520

520

552

520

520

534

542

545

548

550

534

522

470

434

438

377

303

Apr.

388

386

386

43S

470

468

478

476

472

488

515

524

534

536

528

510

628

736

718

724

715

718

724

733

739

733

733

706

685

679

-

Seoondfoot-days

19,901

15 939

18)320

293,503

207

13!l50

14,627

17,568

54,663

115,551 

24,350

28)554

357,726

May

682

685

691

697

703

709

712

718

727

736

748

760

748

745

760

776

765

771

906

765

742

751

766

1,410

5,670

5,550

5,170

5,470

5,450

4,850

4,030

Mn'jHuimn

757

550

685

2,970

585

530

550

739

5,670 5 290

1 290

709

1,050

5,670

June

,350

,440

,270

,600

,490

,620

,690

,780

,780

,710

,910

,130

,290

,090

,840

,390

,690

,350

,710

,220

,320

,250

,690

,410

2,890

3,070

2,090

2,400

1,120

961

-

July

1,060

1,260

1,290

1,240

1,130

1,030

970

878

797

760

769

766

775

766

760

760

760

760

646

572

590

598

598

598

598

598

598

598

595

595

635

IH t^tmnn

472

496

512

445

210

200

250

386

682

961

572

630

721

200

Aug.

709

640

640

640

638

638

635

635

632

632

632

632

630

630

643

652

652

649

649

649

646

646

643

643

643

640

638

638

635

635

632

Mean

642

531

591

804

491

453

472

586

1,763

3,852

785

642

952

977

Sept.

721

942

1,050

1,040

1,030

1,030

1,030

1,020

994

994

1,010

 1,010

966

950

946

942

942

938

934

930

926

926

923

920

912

909

909

906

906

898

Run-off in 

acre-feet

39,470

31,610

36,340

582,200

30,160

26,080

29,010

34,850

108,400

48)300

39,460

56,640

709,500

d Doubtful gage-height record; discharge computed on basis of records of release from 

O'Shaughnessy Dam.

Note. - No gage-height record Jan. 11 to Mar. 11; discharge computed on basis of records of release from O'Shaughnessy Dam.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
TUOLUMNE RIVER BASIN 205

Don Pedro Reservoir near La Grange, Calif.

Location.- Staff gage, lat. 37°42'48", long. 120°24'1411 , in SWi sec. 35, T. 2 S., R. 14 

fc., at Don Pedro Dam on Tuolumne River, I mile downstream from Rogers Creek and 5.5 

miles upstream from La Grange. Datum of gage is at mean sea level.

Drainage area.- 1,539 square miles.

Records available.- October 1924 to September 1940 (1924-30, gage heights only).

Extremes.- Maximum contents during year, 291,500 acre-feet June 29 (elevation, 605.9 

leetj; minimum, 72,500 acre-feet Jan. 1, 2 (elevation,.516.1 feet).

1924-40: 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. Figures herein show total contents at 8 a.m., of 

which 30,000 acre-feet (mutually agreed-upon minimum) is not available for release. 

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'.

Cooperation.- Records furnished by Turlock and Modesto Irrigation Districts.

Contents, in acre-feet, water year October 1939 to September 1940

D«y

1

2

S

4

e

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

2S

24

25

26

27

28

29

SO

51

Oct.

88, 800

87,200

88,000

88,300

89,200

89,500

90,400

91,000

90,700

90,700

90,900

90,700

90,500

90,000

89,500

88,300

87,400

87,000

86,500

85,800

84,600

84,000

82,500

81,400

81,100

80,700

80,200

80,100

79,900

79,600

79,500

Nov.

79,500

79,600

79,600

79,600

79,600

79,000

79,000

79,000

79,000

78,900

78,700

78,300

77,700

77,400

77,300

77,100

77,000

76,800

76,700

76,700

76,700

76,500

76,200

75,400

75,100

74,800

74,700

74,600

74,600

74,700

Dec.

74,700

74,700

74 , 700

74,700

74,700

74,600

74,400

74,300

74,100

73,700

72,900

74,700

75,200

75,700

75,800

75,800

75,800

75,500

75,400

75,400

75,400

75,200

75,100

74,700

74,400

74,400

74,300

74,000

73,900

73 , 700

73,400

Jan.

72, 500

72,500

78,300

31,600

84,700

88,300

90,000

92,200

100, 100

113,900

131,900

146,000

154,700

158,200

160,700

162,600

164,900

166,200

167,400

168,700

170,000

171,000

172,300

173,600

174,300

190,000

205,400

212,800

216,500

220,500

223,400

_Frt>.

226,300

229, 200

232,100

238,900

243,900

248,100

253,800

258,400

261,100

263,600

264,500

264,500

264,200

264,800

265,800

264,800

264,500

264,800

264,800

264,500

264,200

264,200

264,500

268,600

267,000

267,000

270,700

274,800

273,500

-

Mar.

270,400

263,600

267,000

266,400

266,100

265,800

265,500

265, 500

265,500

265,800

265, 500

265,500

265,100

264,500

263,900

263,900

263,900

263,900

264,200

264,200

264,500

264,500

264,800

265,500

265,800

267,000

276,300

270,700

268,600

271,000

280,700

Apr.

272,600

269,500

267,900

267,300

267,000

266,400

266,100

265,800

266,100

266,100

266,100

266,400

266,700

267,000

267,000

267,000

266,400

266,400

266,700

267,000

267,000

267,000

267,300

267,600

267,300

267,000

266,400

265,500

264,800

265,100

-

M«y

265,500

266,700

267,900

267,900

267,300

266,400

266,400

266,700

267,300

267,900

268,900

268,900

268,900

267,900

267,300

267,300

267,300

267,300

267,000

266,700

266,400

266,700

267,000

267,000

268,600

270,700

270,100

270,100

270,100

270,100

269,500

June

268,900

269,200

268,600

268,600

269,500

270,100

272,300

273,800

276,000

276,300

276,300

276,300

277,000

277,300

277,300

276,700

275,700

276,000

275,400

274,500

276,300

278,200

280,700

282,600

283,300

285,800

288,000

289,600

291,500

290,800

-

July

290,200

289,900

289,900

289,600

288,600

288,300

287,600

286,700

285,800

284,500

283,300

281,700

280,400

273,500

277,000

275,400

274,200

272,600

271,000

269,500

267,600

265,800

263,900

261,800

259,600

257,800

256,000

253,800

252,000

249,900

247,800

Aug.

245,400

243,600

241,600

239,200

236,200

234,200

232,400

230,400

228,300

226,300

224,000

221,100

219,100

216,800

214,500

211,900

203,400

207,100

"204,300

201 , 800

199,500

197,100

194,600

191,900

189,200

185,600

183,300

180,300

177,500

174,600

172,000

Sept.

163,700

166,700

163,100

161,400

159,900

158,200

156,200

154,000

152,300

150,800

149,900

147,400

145, 500

143,800

141,500

139,600

137,700

135,600

133,700

131,900

129,800

127,500

125,500

123,400

121,400

119,200

116,900

114,700

112,600

111,600

-

Monthly elevation and contents, water year October 1939 to September 1940

Date

Dec. 31. ...................

Elevation 

(feet)

527.8 

520.9 

517.7 

516.7

-

583.5 

600.2 

602.5 

597.5 

598.9 

605.7 

591.8 

564.3 

539.1

-

Contents 

(acre-feet)

90,400 

79,500 

74,700 

73,400

-

223,400 

273,500 

280,700 

265,100 

269,500 

290,800 

247,800 

172,000 

111,600

-

Change in contents 

during month 

(acre-feet)

-10,900 

-4,800 

-1,300

-53,000

+150,000 

+50,100 

+7,200 

-15,600 

+4,400 

+21,300 

-43,000 

-75,300 

-60,400

+21,200
306 TUOLUMNE RIVER BASIN

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 Dars, Zk miles upstream from La 

Grange Dam, and 5 miles upstream from La Grange. Altitude of gage, 330 feet (from 

topographic map).

Drainage area.- 1,540 square miles.

Records available.- March 1915 to September'1940. August 1895 to September 1917 at La 

Grange Dam, 3t 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.- 45 years (1895-1940) using 1895-1916 records of combined flow of

river ana canals, and including Hetch Hetchy diversion to San Francisco, 2,558 secondfeet.

Extremes.- Maximum discharge during year, 29.200 second-feet Mar. 31 (gage height, 27.2 

feet;; minimum, 39 second-feet (regulated) Dec. 7.

1895-1940: 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 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 45 second-feet. Flow regulated by Don 

Pedro Reservoir (p. 205 ), Hetch Hetchy Reservoir (p. 203 ), and Lake Eleanor (p.209).

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

81

as

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,250 

1,070 

1,060 

1,050 

1,100

1,090 

1,030 

976 

1,100 

1,090

1,100 

1,090 

1,090 

1,100 

1,140

1,280 

1,220 

1,160 

1,180 

1,200

1,180 

1,000 

1,190 

1,080 

1,010

978 

1,010 

976 

851 

960 

938

Hov.

924 

864 

870 

868 

766

903 

894 

919 

898 

914

851 

798 

938 

942 

910

911 

901 

893 

759 

906

922 

9S8 

767 

874 

921

798 

956 

931 

887 

870

Dec.

878 

858 

761 

887 

880

864 

884 

858 

862 

754

878 

870 

865 

862 

840

848 

748 

848 

880 

851

862 

881 

886 

790 

726

843 

906 

900 

948 

918 

814

Jan.

608 

692 

694 

668 

545

550 

473 

565 

557 

556

664 

660 

660

55S 

684

695 

670 

672 

672 

650

528 

656 

654 

634 

637

591 

564 

682 

777 

789 

786

Feb.

783 

795 

773 

686 

787

808 

773 

760 

788 

1,350

1,700 

1,800 

1,900 

2,900 

3,110

2,510 

2,290 

2,550 

2,340 

2,080

1,940 

1,890 

3,480 

5,680 

4,150

4,650 

13,000 

15,900 

12,500

Honth

Dot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

nary

11.....................................

ater year 1939-4

Mar.

8,250 

5,930 

4,590 

3,970 

3,570

3,220 

3,070 

3,060 

3,130 

2,860

2,790 

2,690 

2,490 

2,280 

2,210

2,200 

2,120 

2,230 

2,360 

2,340

2,460 

2,640 

2,930 

2,980 

3,870

5,310 

14,700 

9,050 

6,990 

12,100 

23,300

Apr.

11,200 

7,310 

5,710 

5,060 

4,440

3,900 

3,420 

3,520 

3,560 

3,570

3,760 

4,040 

4,410 

4,690 

4,920

4,580 

3,860 

3,950 

4,380 

4,690

4,610 

4,940 

5,400 

5,420 

5,010

4,470 

3,780 

3,040 

2,870 

3,030

Seoondf dot-day B

33,639 

26,483 

26,450

555,097

19,791 

94,673 

151,690 

137,540 

182,010 

164,360 

55,780 

60,720 

60,200

1,013,236

May

3,390 

4,580 

5,700 

5,590 

4,700

4,100 

4,240 

4,510 

5,080 

5,700

6,200 

6,290 

6,600 

6,090 

5,630

5,440 

5,680 

5,700 

5,050 

4,860

4,620 

4,890 

4,940 

5,180 

7,060

9,020 

8,660 

8,620 

8,710 

7,990 

7,190

Haxlmun

1,250 

956 

948

5,270

789 

15,900 

23 ,300 

11,200 

9,020 

7,480 

1,870 

2,110 

2,120

23,300

June

7,450 

7,330 

7,100 

7,080 

6,880

6,490 

6,490 

6,350 

6,640

7,020

6,980 

7,010 

7,260 

7,480 

7,380

6,940 

6,640 

6,700 

6,290 

4,580

3,820 

3,750 

2,930 

2,860 

2,830

2,830 

2,670 

1,900 

2,680 

2,000

July

1,830 

1,840 

1,820 

1,780 

1,810

1,830 

1,760 

1,830 

1,820 

1,830

1,810 

1,810 

1,800 

1,740 

1,800

1,790 

1,770 

1,790 

1,800 

1,790

1,740 

1,780 

1,790 

1,790 

1,800

1,700 

1,830 

1,760 

1,830 

1,840 

1,870

Minimum

851 

759 

726

604

473 

686 

2,120 

2,870 

3,390 

1,900 

1,700 

1,830 

1,360

473

Aug.

1,870 

1,830 

1,900 

1,830 

1,870

1,880 

1,900 

1,900 

1,930 

1,910

1,890 

1,920 

1,930 

1,940 

1,950

1,970 

1,950 

1,890 

1,970 

1,990

2,000 

2,000 

2,000 

2,000 

1,950

2,020 

2,080 

2,110 

2,100 

2,090 

2,100

Mean

1,082 

883 

853

1,521

638 

3,265 

4,893 

4,686 

6,871 

5,479 

1,799 

1,959 

2,007

2,768

Sept.

1,990 

1,990 

2,040 

2,010 

2,030

2,060 

2,050 

1,960 

2,030 

2,040

2,060 

2,060 

2,070 

2,040 

1,960

2,050 

2,090 

2,080 

2,080 

2,090

2,060 

1,970 

2,060 

2,1OO 

2,110

2,120 

2,100 

2,110 

1,360 

1,430

Run-off in 

acre-feet

66,620 

52,630 

52,460

1,101,000

39,250 

187,800 

300,900 

272,800 

361,000 

326,000 

110,600 

120,400 

119,400

2,010,000

Note.- Discharge for periods Ji 

Hodesto canals.

ne 24-28 and June 30 to Aug, 18 Is sum of flow in Turlock and

97238, February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
TUOLUMNE RIVER BASIN 207

Falls Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°58', long. 119°46', In NEi sec. 3, T. 1 N., R. 

20 £., in Yosemite National Park, a quarter of a mile upstream from Wamparia Falls, 1 

mile upstream from mouth, and 2 miles northeast of Hetch Hetchy. Altitude of gage, 

about 5,600 feet.

Drainage area.- 45.2 square miles.

Records available.- November 1915 to September 1940.

Average dlsctt&rge.- 24 years (1916-40), 136 second-feet.

Extremes.- Maximum discharge during year, 1,440 second-feet Mar. 26 (gage height, 6.22 

feet); minimum, 0.1 second-foot Sept. 25-30.

1915-40: 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 summers of several years.

Remarks. Records good. No diversions.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet)

1.2

1.3

1.4

1.5

1.6

1.7

0.1 

.1 

.1 

.2 

.3 

.4

1.8

1.9

2.0 

2.2 

2.4 

2.6

0.8

1.5

2.2

4.0

8

15

2.8 

3.0 

3.3 

3.6 

3.9 

4,2

24

41

85

145

218

307

4.5 

4.8 

5.1 

5.4 

5.6

409

521

655

820

955

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

36

130

115

96

111

138

132

113

94

82

82

85

78

70

59

49

40

33

28

24

22

19

17

18

31

34

43

62

65

54

43

HOT.

35

29

25

22

20

18

16

15

15

14

13

11

10

9.5

9

8

7.5

7

6.5

6

6

5.5

5.5

5

5.5

7

6.5

6

5.5

5.5

-

Dec.

5

5.5

5.5

5.5

5.5

5.5

6

6.5

7

11

24

21

17

14

12

11

10

9.5

9.5

9.5

9

7.5

7

7

6.5

6.5

6.5

6.5

7

11

15

Jan.

23

442

342

292

123

82

85

111

107

147

232

163

107

82

73

71

70

62

58

53

51

49

47

43

178

409

210

150

119

101

96

Pet).

89

80

103

96

.82

101

82

68

60

64

65

58

53

58

59

58

54

56

56

56

53

60

187

94

111

130

193

170

119

-

-

Month

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

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

Hav. ....... ...

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

Water year 1939-4 0...... ................

Mar.

98

98

89

80

78

87

105

123

130

117

90

75

66

71

83

94

96

98

92

141

163

195

229

252

427

676

646

307

285

313

226

Apr.

156

123

109

98

87

96

121

125

147

185

235

298

363

427

427

301

258

298

373

420

453

517

579

553

464

323

218

180

173

1BO

-

Secondfoot-days

2,003

354.5

290.0

31,208.9

4,178

2 515

5^630

21 520

lejeei

1,916 

145.0

12.6

63,512.1

May

298

529

645

592

384

366

441

533

670

772

885

920

913

826

760

738

878

732

690

680

778

808

796

913

927

690

675

749

73S

645

549

MmH^mim

138

35

24

516

442

193

676

579

0017 y«; r

749

197

13

1 2

927

June

655

655

645

700

655

700

695

665

670

 6S5

716

732

732

749

744

610

700

640

561

475

525

491

359

336

346

285

24S

255

224

213

-

July

197

175

161

147

1S7

113

103

90

82

75

64

58

52

47

42

41

39

34

30

28

25

23

22

20

20

20

18

17

16

15

15

Minijllum

17

5

5

0

"3

53

66

87

298

213

15

1.4

.1

.1

Aug.

13

11

9.5

8.5

7.5

7

7

7

6.5

6

5.5

5

4.8

4.6

4.4

4.0

3.8

3.4

3.0

2.8

2.5

2.3

2.1

2.0

1.8

1.8

1.8

1.8

1.7

1.5

1.4

Mean

64.6

11.8

9.35

85.5

135

86.7

182

276

694

555

61. 8

4.68

.42

174

Sept.

1.2

1.1

.9

.9

.8

.S

.7

.6

.6

.5

.4

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

Run-off in 

acre-feet

3,970

703

575

61,880

8,290

4 990

Il!l70

16,440

42,680

33,050

3,800

288

25

126,000

Peak discharge.- Jan. C (6 p.m.) 760 sec.-ft. 

1,440 sec.-ft.; May 25 (8 a.m.) 1,080 sec.-ft.

Jan. 26 (9 a.m.) 502 sec.-ft.; Mar. 26 (11 p.m.)

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
208 TUOLUMNE RIVER BASIN

Cherry Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 38°00', long. 119°54', In SWi sec. 28, T. 2 N., R. 

19 K.. 2tj miles northwest of Lake Eleanor Dam, 4 miles upstream from Eleanor Creek, 

and 7* miles northwest of Hetch Hetchy. Altitude of gage, about 4,500 feet.

Drainage area.- Ill square miles.

Records available.- April 1910 to September 1940.

Average d1scharge.- 30 years, 358 second-feet.

Extremes.- Maximum discharge during year, 5,200 second-feet Mar. 26 (gage height, 10.40 

reet); minlnum, 3.4 second-feet Sept. 4, 10, 13, 14. Minimum gage height, 1.04 feet 

Aug. 22-24 and Sept. 29-30.

1910-40: 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.

Remarks.- Records excellent except those for August and September which are good. No 

diversions above station. Release from small reservoirs Increases normal summer flow.

Rating table. ater year 1939-40 except periods of backwater (gage height. In feet, and

discharge, in second-feet) 

(Shifting-control method used Aug. 25 to Sept. 30)

0.9 2 1.9 84 3.5 662 5.5 1,655 9.0 4,120 

1.1 7 2.3 188 4.0 885 6.0 1,950 10.4 5,200 

1.3 18 2,7 342 4.5 1,130 7.0 2,630 

1.6 41 3.1 502 5.0 1,380 8.0 3,370

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

209 

786 

530 

362 

346

554 

410 

278 

202 

159

142 

134 

126 

114 

96

82 

70 

59 

51 

45

39 

35 

31 

39 

136

106 

126 

156 

139 

111 

90

Hov.

76 

61 

53 

46 

41

36 

33 

30 

30 

29

26 

24 

23 

22 

21

20 

19 

18 

17 

17

17 

16 

16 

15 

34

159 

79 

53 

51 

39

Dec.

45 

43 

38 

34 

31

40 

56 

45 

45 

474

428 

150 

100 

76 

64

56 

49 

47 

46 

45

37 

26 

31 

30 

- 28

31 

28 

29 

79 

92 

82

Jan.

163 

2,270 

656 

812 

306

232 

311 

598 

626 

578

111 

506 

282 

217 

192

178 

172 

172 

162 

156

156 

153 

145 

142 

468

1,260 

638 

402 

322 

274 

266

Feb.

254 

224 

362 

314 

258

342 

243

195 

182 

195

195 

166 

156 

172 

182

166 

162 

162 

156 

162

172 

188 

542 

282 

366

445 

845 

884 

476

Month

Dot

Nov 

Dec

C

Jan 

Fell 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

«

ember. .................................

ua

11.....................................

y........ ..............................

ater year 1939-4 3 ......................

Mar.

346 

306 

270 

247 

243

266 

318 

386 

398 

338

270 

217 

199 

213 

247

266 

282 

294 

338 

426

494 

598 

715 

786 

T.,500

2,150 

1,830 

780 

1,070 

1,710 

865

Apr.

1, 

1, 

1,

1, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot-days

5,763 

1,121 

2,405

79,467.1

13,592 

8,448 

18,368 

23,715 

58,205 

34,312 

2,695 

235 

118.6

168,977.6

540 

402 

358 

326 

282

310* 

402 

390 

478 

622

777 

950 

160 

260 

060

715 

706 

955 

140 

180

240 

420 

570 

450 

100

732 

518 

474 

510 

688

May

1,300 

1,990 

1,900 

1,540 

975

1,100 

1,320 

1,670 

2,000 

2,300

2,490 

2,550 

2,450 

2,160 

2,020

2,070 

2,420 

1,960 

1,770 

1,890

2,160 

1,980 

2,050 

2,330 

2,060

1,690 

1,680 

1,840 

1,690 

1,420 

1,430

Maximum

786 

159 

474

1,200

2,270 

884 

2,150 

1,570 

2,550 

1,870 

306 

16 

5.5

2,550

June

1,870 

1,500 

1,460 

1,540 

1,470

1,620 

1,520 

1,430 

1,440 

1,460

1,500 

1,480 

1,450 

1,460 

1,340

1,210 

1,340 

1,160 

1,020 

894

1,050 

890 

646 

654 

658

514 

458 

502 

426 

350

July

306 

282 

258 

232 

195

159 

142 

126 

109 

96

84

76 

67 

60 

53

48 

47 

45 

39 

36

32 

29 

26 

24 

22

20 

18 

17 

16 

15 

16

Aug.

16 

15 

14 

14 

13

11 

10 

10 

9.5 

8.5

8 

7.5 

6.5 

6.5 

6.5

6 

5.5 

5.5 

5.5 

5.5

5.0 

4.9 

4.9 

4.9 

4.9

4.6 

4.6 

4.6 

4.2 

4.2 

4.2

Sept.

3.8 

3.5 

3.5 

3.4 

3.8

4.6 

4.2 

3.8 

3.5 

3.4

3.5 

3.5 

3.4 

3.4 

3.5

3.5 

3.8 

4.9 

5.5 

5.5

5.0 

4.6 

4.6 

4.2 

3.8

3.8 

3.8 

3.8 

3.5 

3.5

Minimum Mean ^-feet"

31 186 11,430 

15 37.4 2,220 

26 77,6 4,770

2.4 218 157,600

142 438 26,960 

156 291 16,760 

199 593 36,430 

282 790 47,040 

975 1,878 115,400 

350 1,144 6S, 060 

15 86.9 5,350 

4.2 7.58 466 

3.4 3.95 235

3.4 462 335,100

Peak discharge.- Jan. 2 (4 p.m.) 4,400 sec.-ft.; Jan. 26 (6 p.m. 

.m.) 5,200 sec.-ft.; Mar. 30 (3 p.m.) 2,460 sec.-ft.; May 12 (10

1,620 sec.-ft.; Mar. 26 (11 

.».) 3,370 sec.-ft.

9-232 February 1936

UNITED STATES DKPARTMENT OF THE INTERIOR 

Geological Survey
TUOLUMNE RIVER BASIN 209

Lake Eleanor near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°58', long. 119°53', in NWt sec. 3, T. IN., R. 

19 E., at dan on Eleanor Creek, 1.7 miles upstrean from Miguel Creek and 54 miles 

northwest of Hetch Hetchy. Datum of gage is at mean sea level.

Drainage area.- 79 square miles.

Records available.- October 1919 to September 1940 (1919-30,'gage heights only).

Extremes.- Maximum contents during year, 28,800 acre-feet June 12 (elevation, 4,661 1 

reetj; minimum, 2,850 acre-feet Dec. 27-29 (elevation, 4,627.4 feet).

1919-40: Maximum contents, 29,400 acre-feet Mar. 25, 1928 (elevation, 4,661.7 

feet); no usable contents Nov. 28 to Dec. 20, 1921, Feb. 21 to liar. 3, Nov. 21 to 

Dec. 10, 1929, Dec. 18-24, 1930.

Remarks.- Reservoir is formed by multiple-arch dam completed in 1918; storage began June 

23, 1918. Usable capacity, 27,500 acre-feet 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. 

Figures given herein represent total contents at midnight, of which 350 acre-feet is 

not available for release. Water is released down Eleanor Creek and ultimately used 

for power development and domestic supply as part of Hetch Hetchy system of city of 

San Francisco.

Contents, in acre-feet, water year October 1939 to September 1940

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.

9,890

10, 400

10,800

11,100

11,400

11,800

12,200

12,500

12,800

12,900

13,100

13, 200

13,300

13,400

13, 500

13,600

13,600

13,600

13,600

13,500

13,400

13,300

13, 200

13,200

13,000

12,900

12,800

12,800

12, 800

12,700

12,700

Nov.

12, 700

12, 500

12,400

12,100

12,000

11,700

11,500

11,200

10,900

10, 700

10,400

10,200

9,890

9,620

9,340

9,060

8,790

8,510

8,170

7,900

7,550

7,210

6,880

6,600

6,310

6,260

6,200

6,030

5,800

5,520

-

Dec.

5,240

4,960

4,630

4,400

4,110

3.S20

3,480

3,140

2,710

3,050

3,440

3,630

3,770

3,820

3,820

3,770

3,680

3,580

3,440

3,290

3,140

3,140

3,050

3,000

2,950

2,900

2,850

2,850

2,850

2,900

2,900

Jan.

3,000

6,480

7,900

9,550

10.100

10, 500

11,100

12,000

13,000

14, 200

15,600

16,600

17, 200

17, 500

17,900

18, 100

18,400

13,600

18, 800

19, 100

19,400

19,600

19,700

19,900

21,000

23,400

24,800

25,600

25,800

25,800

25,800

Feb.

25,300

25,700

26,000

26,000

25,800

25,900

25,800

25,300

25,700

25,700

25,700

25,600

25,600

25,700

25,700

25,600

25,600

25,600

25,600

25,600

25,600

25,700

26,100

26,000

26,000

26,100

26, 500

26,500

26,200

-

-

Mar.

26,000

25,900

25,800

25,800

25,800

25,800

25,900

25,900

25,900

25,800

25,800

25,600

25,600

25,600

25,600

25,600

25,700

25,700

25,800

25,900

26,000

26,000

26,100

26,200

26,900

28,200

27,500

26,800

27,100

27,300

26,800

Apr.

26,400

26, 200

26,100

26,000

26,000

25,900

25,900

26,000

26,000

26,100

26, 200

26,400

26,600

26,700

26,400

26,200

26,100

26,300

26,500

26, 500

26,600

26,700

26,700

26,600

26,300

26,100

26,000

26 , 000

26,000

26,000

-

Hay

26, 400

26,800

26,700

26,500

26 , 300

26,300

26,300

26, 500

26,700

26,900

27,000

27,000

26,900

26,800

26,700

26,700

26,800

26,700

26,500

27, 200

27,800

27,800

27,800

27,900

27,300

27,600

27,600

27, 500

27, 500

27,400

27,400

June

27,400

27,400

27,400

27,400

27,400

27,400

27,400

27,400

27, 500

27,700

28,500

23, 800

28,700

28,700

28,700

28,700

28,700

28,600

28,600

28,600

28,600

23,700

28,700

28,700

28,600

28,600

28,600

28,600

28,600

28,600

-

July

23,600

28,700

23,600

23,600

28,700

28,700

28,700

28,700

28,700

28, 700

28,600

28,600

28,600

28,400

28,200

28,000

27,800

27,700

27,500

27,300

27,200

27,000

26,800

26,500

26,300

26,000

25, 800

25,500

25,200

24,900

24,700

Aug.

24,600

24,500

24,400

24,200

24,000

23 , 800

23,600

23,400

23,300

23,200

23 , 000

22,700

22,500

22,300

22,100

21,900

21,700

21,500

21,400

21 , 200

20,900

20,700

20 , 500

20,300

20,100

19,900

19,700

19,600

19,400

19,200

18,900

Sept.

18,700

18, 500

18, 200

IS, 100

17,900

17,700

17, 500

17,400

17,100

16,800

16,500

16,200

15,900

15,600

15,300

15,000

14,700

14,300

14,100

13,900

13,600

13,300

13,000

12,800

12,400

12,000

11,700

11,400

11,200

10,800

-

Monthly elevation and contents, water year October 1939 to September 1940

Date

Sept. 30.. ..................

Water year 1939-40. ......

Elevation 

(feet)

4,640.6

-

Contents 

(acre-feet)

27 400

24 700

18*900

10,800

-

Change in contents 

during month 

(acre-feet)

-8,100

+700
210 TUOLUMNE RIVER BASIN

Eleanor Greek near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°58', long. 119°53', In SWi sec. 3, T. 1 N., R. 

19 E., In Yosemite National Park, 0.6 mile downstream from Lake Eleanor Dan, 1.1 miles 

upstream from Miguel Greek, and 5-i miles northwest of Hetch Hetchy. Altitude of gage, 

about 4,600 feet.

Drainage area.- 80 square miles.

Records available.- November 1915 to September 1940. June to October 1901 and November 

1909 to November 1915, at site 1 mile upstream.

Average discharge.- 30 years (1910-40), 216 second-feet.

Extremes.- Maximum discharge during year, 3,300 second-feet Mar. 27 (gage height, 7.87 

reet;; nlnlmum, 1.5 second-feet (regulated) Dec. 11 (gage height, 1.06 feet).

1909-40: 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. No diversions. Flow regulated by Lake Eleanor (see p. 209).

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

1.2

1.3

1.4

1.5

2.8 

4.0 

5.5 

7.5

1.7

1.9

2.0 

2.2

13 2.6 

2.8 

3.0 

3.2

73

133

178

3.6 

3.8

4.0

4.4

295

365

435

590

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

S

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

135

94

2.2

2.2

2.1

2.2

2.3

2.1

2.0

1.8

1.7

1.7

1.7

1.7

1.7

1.7

1.7

8

53

53

53

53

50

70

117

80

98

89

73

54

30

Nov.

72

89

110

128

133

133

139

141

141

144

141

141

139

146

150

152

154

154

156

159

159

161

159

161

161

74

49

99

124

133

-

Dec.

141

144

141

141

141

141

144

144

139

70

9.5

8.5

24

24

36

56

69

72

72

72

71

46

39

39

a39

a39

a25

a!7

a!7

a!7

a!7

Jan.

a!7

a7.5

a3.4 1

. a4.0

i

3.0

3.0

3.2

7

13

9

4.9

140

215

282

288

Feb.

285

262

295

372

323

312

336

259

£10

186

178

168

156

191

191

166

171

171

152

144

141

154

410

452

376

435

643

789

686

-

-

Month

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

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

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

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

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

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

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

Water year 19S9-4 3 ......................

Mar.

474

376

316

278

259

250

265

312

344

334

292

244

210

191

199

218

244

265

278

326

372

428

510

562

916

j.,380

2,600

1,250

944

1,380

1,170

Apr.

745

558

449

393

351

323

344

365

396

449

546

630

750

860

855

652

542

578

684

745

770

835

912

865

750

606

482

410

390

414

-

Secondfoot -days

1,138.8

4,002

2,155.0

46,281.7

1,064.0

8,594

17,187

17, 649

9*464

2* 8fiO

2, 581

3,910

94,493.8

May

534

815

990

918

716

652

670

735

845

978

1,110

1,140

1,110

996

912

860

990

882

765

384

474

730

730

770

775

662

594

582

570

534

466

Maximum

135

161

144

720

288

2,600

912

1,140

482

141

93

150

2,600

June

466

482

463

463

442

446

463

446

435

322

21

249

446

442

442

396

382

376

348

295

215

241

212

164

173

166

150

105

101

112

-

July

107

99

93

89

52

26

36

42

43

37

43

62

72

77

86

86

95

99

102

113

113

117

126

126

124

129

137

137

137

141

114

M^ ip 1 nrwffi

1.7

49

8.5

1.7

3.0

141

191

,0 .

21

26

92

1.7

Aug.

37

73

75

79

79

79

81

84

83

81

81

81

80

81

86

86

85

85

85

86

86

88

89

89

91

91

91

91

92

93

93

lie an

36.7

133

69.5

127

34.3

296

554

588

771

315

83 3

130

258

Sept.

92

92

92

92

92

92

92

92

120

148

148

146

146

144

144

144

144

141

141

141

141

144

146

146

146

146

148

150

150

150

-

Run-off in 

acre-feet

2,260

7,940

4,270

91,790

2,110

17,050

34,090

35,010

18, 770

5,670

5,120

7,760

187,400

Peak discharge.- Mar. 27 (4 a.m.) 3,300 sec.-ft.; Mar. 30 (8 p.m.) 1,530 sec.-ft.; May 12 (5:30 

a.n.) 1,210 sec.-ft.

a Ho gage-height record; discharge computed on basis of record of release from Lake Eleanor.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
TUOLUMNE RIVER BASIN 211

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

Location.- Water-stage recorder, lat. 37°49', long. 120°00', in 8E£ sec. 29, T. IS., R. 

18 E., 75 feet downstream from highway bridge on Big Oak Flat road, half a mile southwest of Oakland Recreation Camp, and O.G mile upstream from confluence v/Ith Middle 

Tuolunne River. Altitude of gage, about 2,800 feet (from topographic map).

Drainage area.- 87.6 square miles.

Records available.- March 1923 to September 1940.

Average discharge.- 17 years, 81.4 second-feet.

Extremes.- Maximum discharge during year, 1,460 second-feet Mar. 30 (gage height, 5.65 

feet); minimum, 8 second-feet Dec. 22.

1923-40: Maximum discharge, 6,950 second-feet Dec. 11, 1937 (gage height, 10.00 

feet), from rating curve extended above 1,000 second-feet on basis of velocity-area 

studies; minimum, 0.3 second-foot Aug. 23, 1934.

Remarks.- Records good. No diversions.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

33 

35 

22 

21

27 

31 

24 

20 

18

17 

16

Ib 

14

14

14 

13 

13 

13 

13

12 

12 

12 

14 

18

17 

16 

17 

19 

18 

16

Hov.

16 

15

14 

14 

14

14 

14 

14 

14 

14

14

13 

13 

13 

13

13 

13 

13 

13

13

13

13 

13 

13 

15

31 

19 

16 

15 

14

Dec.

14

14 

14 

14 

14

14 

14 

14 

14 

18

47 

24 

19

17 

16

16 

15 

15 

14 

14

14 

13 

15 

14 

13

14 

14 

14 

15 

15 

15

Jan.

16

109 

95 

167 

74

50 

76 

324

478 

549

527 

402 

196 

129 

98

83 

74 

66 

61 

58

54

53 

51 

50 

169

481 

251 

164 

131 

111 

104

Feb.

102 

94 

245 

249 

176

189 

174 

140 

123 

111

105 

96 

92 

113 

104

96 

108 

108 

96 

S3

93 

124

444 

318 

265

327 

1.030 

807 

715

Month

Dot 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

w

ember. .................................

11.....................................

ater year 1939-4

Mar.

479 

364 

305 

263 

235

214 

204 

202 

194 

180

170 

155 

146 

140 

138

138 

140 

142 

138 

148

157 

173 

190 

194 

246

335 

796 

426 

394 

870 

979

Apr.

591 

447 

379 

340 

308

288 

279 

266 

260 

272

295 

322 

344 

358 

336

266

252 

288 

305 

305

322 

340 

336 

316 

288

252 

221 

209 

197 

204

Secondfoot-days

558 

436

497

17,372

5,251 

6,737 

8,855 

9,186 

7,456 

1,821 

709 

423 

362

42,291

May

266 

322 

312 

295 

243

252 

249 

279 

312 

336

340 

333 

305 

279 

260

260 

279 

243 

221 

227

221 

204 

219 

209 

180

150 

150 

144 

131 

122 

113

Maximum

35 

31 

47

285

549 

1,030 

979 

591 

340 

124 

32 

17 

14

1,030

June

124 

110 

102 

98 

92

91 

88 

81 

77 

73

68 

64 

60 

56

53

50 

47 

45 

43 

43

41 

39 

38 

36

35

34 

33 

32 

33 

35

July

32 

31 

30 

29 

28

27 

26 

25 

24 

24

24 

23 

23 

23 

23

22 

22 

22 

22 

22

21 

21 

20 

19 

19

18 

18 

18 

18 

18 

17

Minimum

12 

13 

13

6.5

16 

92 

138 

197 

113 

32 

17 

12 

11

11

Aug.

17 

16 

16 

16 

16

16 

15 

15 

15 

14

14 

14 

13 

13 

13

13 

14 

13 

13

13

12 

12 

12 

12 

13

13 

12 

12 

12 

12 

12

Mean

18.0 

14.5 

16.0

47.6

169 

232 

286 

306 

241 

60.7 

22.9 

13.6 

12.1

116

Sept.

12 

12 

12 

14 

13

13 

12 

12 

12 

12

12 

12

12 

12 

12

12 

13 

13 

13 

12

12 

12 

12

11 

11

11 

11 

11

12 

12

Run-off in 

acre-feet

1,110 

865 

986

34,460

10,420 

13,360 

17,560 

18, 220 

14,790 

3,610 

1,410 

839 

718

83,890

Peak discharge.- Jan. 9 

660 sec.-ft.; Feb. 27 (8 

1,460 sec.-ft.

(6:30 p.m.) 801 sec.-ft.; Jan. 10 (8 p.m.) 891 sec.-ft.; Jan. 25 (12 p.m.) 

a.m.) 1,320 sec.-ft.; Mar. 27 (2 a.m.) 1,350 sec.-ft.; Mar. 30 (9:30 p.m.)

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeological Survey
212 TUOLUMNE RIVER BASIN

Middle Tuolumne River near Buck Meadows, Calif.

Location.- Water-stage recorder, lat. 37°50', long. 120°00', In NWi sec. 28, T. IS., R. 

18 E., half a mile upstream from confluence with South Fork of Tuolumne River arid 4 

miles east of Buck Meadows. Altitude of gage, about 2,800 feet (from topographic 

map).

Drainage area.- 71.0 square miles.

Records available.- November 1916 to September 1940.

Average discharge.- 23 years (1917-40), 67.6 second-feet.

Extremes.- Maximum discharge during year, 890 second-feet Mar. 30 (gage height, 6.17 

feet); minimum, 0.5 second-foot (regulated) Sept. 30 (gage height, 0.50 foot).

1917-40: 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 gage for Irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

7,

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

28

83

24

85

86

27

28

H9

30

31

Oct.

3.3

8.5

15

10

8

11

12

10

8.5

7.5

6.5

6

6

5.5

5

4.6

4.3

4.1

4.0

3.9

3.7

3.6

3.5

4.5

7

6.5

h6

h5.5

a5.5

h5.5

h8

HOT.

h6.5

h6

h5.5

5

4.8

4.7

4.5

4.5

4.4

4.4

4.3

4.2

4.1

4.0

4.0

4.0

3.6

3.8

4.0

4.1

4.0

4.0

4.1

4.1

4.7

9.5

7

5

4.5

4.3

-

Dec.

.3

' .4

' .5

 .3

.2

.2

 .6

 .4

 .6

6

15

12

8

7

6

6

5.5

5.5

5.5

5

4.7

4.1

4.8

4.8

3.9

4.4

4.3

5

4.8

5

5.5

Jan.

5.5

26

58

66

32

22

31

115

192

225

202

131

63

42

32

28

26

24

22

22

19

20

19

18

87

199

108

66

52

44

41

Feb.

41

39

81

85

62

66

60

48

44

41

39

36

35

51

46

39

51

46

39

40

40

47

163

118

94

124

415

534

354

.

-

Month

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

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

Kay... ....................................

Water year 1939-40......................

Mar.

182

140

115

100

92

87

85

88

87

83

76

67

66

64

65

66

69

71

71

77

83

93

102

113

154

244

522

283

262

556

531

Apr.

304

237

206

185

169

160

162

157

160

173

189

217

251

278

272

217

202

237

272

282

304

334

345

334

304

257

223

211

206

225

-

Seoondfoot-days

203.0

141.6

172.3

11,924.8

4,694

7,073

2,298

84.2

65.5

30,825.2

May

289

36S

373

356

307

327

322

363

409

447

472

477

450

423

399

409

464

387

361

375

373

331

345

361

304

257

259

247

229

206

182

MaxljnuiiL

15

9.5

15

210

225

556

345

198

22

4.3

2.7

556

June

198

. 180

160

157

140

140

132

119

112

99

91

82

73

65

58

51

48

44

40

40

36

34

30

28

26

24

23

22

22

24

-

July

22

20

18

17

16

15

14

13

12

11

10

10

9.5

9

8.5

8.5

8

8

8

8

7.5

7

6.5

6

5.5

5

4.8

4.7

4.6

4.5

4.5

M^y^nnim

3.3

3.6

3.9

.6

5.5

35

64

157

22

4.5

1.8

1.6

1.6

Aug.

4.3

4.1

3.9

3.9

3.5

3.5

3.4

3.3

3.0

3.0

3.0

2.8

2.4

2.5

2.5

2.5

2.6

2.4

2.4

2.4

2.2

2.1

2,2

2.4

2.1

1.8

2.0

2.1

2.0

2.0

1.9

He an

6.55

4.72

5.56"

32.7

65.7

99.2

151

236

76.6

9.87

2.72

2.18

*84.2

Sept.

1.9

1.9

2.7

2.2

2.2

2.5

2.7

2.5

2.4

2.4

1.6

1.7

1.7

1.8

2.0

2.2

2.2

2.4

2.5

2.4

2.4

2.2

2.2

2.1

2.0

2.1

2.2

2.4

2.4

1.6

Run-off in 

acre-feet

403

281

342

23,650

4,04*0

5,710

9,310

14,030

4,560

607

167

130

61,140

Peak discharge.- Jan. 10 (5:30 p.m.) 472 sec.-ft.; Feb. 27 (6 a. 

p.m.) 850 sec.-ft.; Kar. 27 (3 a.m.) 805 sec.-ft.; Kar. 30 (6 p.m. 

p.m.) 698 sec.-ft.

a No gage-height record; discharge Interpolated.

h Discharge computed from staff-gage reading.

.) 623 sec.-ft.; Feb. 28 (10:30 

890 sec.-ft.; May 16 (11:30

9-838 February 1936

UNITED STATES DEPARTMEHT OP THE INTERIOR 

Geological Survey
TUOLUMNE RIVER BASIN 213

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., 1& miles upstream from mouth and 1% 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 1940.

Average discharge.- 15 years, 59.6 second-feet.

Extremes.- Maximum discharge during year, 5,500 second-feet Mar. 31 (gage height, 8.80 

feet); no flow Oct. 1-3.

1925-40: Maximum discharge, 13,500 second-feet Feb. 9, 1938 (gage height, 10.5 

feet), _rom rating curve extended above 1,000 second-feet on basis of velocity-area 

studies; no flow at times during summers In period 1929-36, and In 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 1939 to September 1940

Day

1

2

3

4

S

6

7

a

9

10

11

12

13

14

15

16

17

18

19

SO

SO.

22

SS

24

25

26

27

28

29

50

31

Oct.

0

0

0

2.0

1.5

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1.1

1.1

1.1

1.1

1.7

2.6

4.5

3.6

2.5

1.9

2.6

2.6

HOT.

4.3

3.8

3.2

2.7

2.7

2.7

2.7

2.9

3.2

3.0

3.0

2.6

3.0

2.3

2.3

2.3

2.9

3.2

3.3

3.3

3.5

3.2

2.6

2.5

2.5

3.5

6

4.3

4.2

4.0

-

Dec.

3.6

3.5

3.6

4.3

4.2

4.2

4.3

4.7

4.3

5

17

13

8

6

5.5

5.5

6

6

6

6

5.5

5

5.5

6

6.5

6

6

6.5

6

7

7

Jan.

8.5

2S

55

189

91

64

57

345

1,150

910

865

459

218

98

61

48

46

41

32

33

59

41

32

24

L,150

L,260

343

141

94

82

114

Pel).

S3

97

362

466

1S2

303

240

141

93

79

62

64

69

476

252

125

218

273

141

112

103

116

728

340

198

342

3,270

1,260

906

_

-

Month

Calendar year 1939 ......................

Jan 

Pet

frfflT

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

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

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

Water year 1939-40........... ...........

Mar.

390

25S

207

16S

139

118

107

112

88

79

79

69

67

41

44

70

57

50

45

42

33

31

30

31

55

344

1,260

279

408

2,200

2,500

Apr.

492

324

157

234

168

145

131

118

107

91

78

69

67

42

57

43

36

48

53

50

46

44

41

37

42

74

57

45

42

39

Secondfoot -days

43.9

95.7

187.7

6,910.2

8,138.5 

11,101 

9,401

2,977

558.0

326.6

42.9

16.1

23.5

32,911.9

May

36

33

31

35

40

33

29

27

25

24

22

22

19

18

15

14

12

11

9.5

9

9

8.5

7.5

8

8.5

8.5

8.5

7.5

8.5

9

10

Ma-rinnim

4.5

6

17

311

1,260 

3,270 

2,500

492

40

43

5

.9

2.1

3,270

June

11

11

9.5

9.5

8.5

7.5

6.5

5.5

5

4.5

4.5

3.9

3.2

2.7

1.8

7.5

9

10

10

11

12

11

10

9

11

21

43

40

19

8.5

July

5

3.4

2.5

1.8

1.6

1.3

1.2

1.3

1.2

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.3

1.8

1.6

1.2

1.1

1.0

1.0

1.0

.9

.9

.9

.9

.8

.8

Minimum

0

2.3

3.5

0

8.5 

62 

30

36

7.5

1.8

.8

.4

.3

0

Aug.

0.8

.8

.9

.7

.7

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.6

.6

.6

.5

.5

.5

Mean

1.42

3.19

6.05

18.9

263 

383 

303

99.2

18.0

10.9

1.38

.52

.78

89.9

Sept.

0.4

.5

.5

.4

.5

.7

.5

.4

.3

.3

.4

.5

.5

.5

.5

.5

.6

.6

.8

.9

1.0

1.1

1.2

1.2

1.2

1.2

1.2

2.1

1.6

1.4

-

Run-off in 

acre-feet

87

190

372

13,700

16,140 

22,020 

18,650

5,900

1,110

648

85

32

47

65,280

Peak discharge.- Jan. 9 (3r30 p.m.) 2,900 sec.-ft.; Jan. 25 (8 p.m.) 4,420 sec.-ft.; Feb. 4 

(10 p.m.) 1,150 sec.-ft.; Feb. 27 (10 a.m.) 5,080 sec.-ft.} Har. 27 (2:30 a.m.) 3,230 sec.-ft.; 

Mar. 31 (3 a.m.) 5,500 sec.-ft.

Note.- Discharge for period of no gage-height record, Oct. 4-19, computed on basis of one estimate of flow and recorded range of stage.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
214 TUOLUMNE RIVER BASIN

Modesto canal near La Grange, Calif.

Location.- Water-stage recorder, lat. 37°40'04", long. 120°27'26", In SW£ sec. 17, T. 3 

S., R. 14 E., a half a mile northeast of La Grange and about a mile downstream from 

intake at La Grange Dam on Tuolunne River. Datum of gage is 272.4 feet above mean 

sea level.

Records available.- April 1903 to September 1940. 

Average discharge.- 37 years, 342 second-feet.

Extremes.- Maximum daily discharge during year, 1,560 second-feet June 15, 17, 18; no 

now at times.

1903-40: Maximum dally discharge, 1,820 second-feet July 1, 1935; no flow at 

times.

Remarks.- Records good except those for period of no gage-height record, v/hich are fair. 

Canal diverts water from right bank of Tuolumne River at La Grange Dam for irrigation 

in Modesto and Waterford irrigation districts.

Cooperation.- Gage-height record furnished by Modesto Irrigation District.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

548

371

324

325

322

314

322

306

308

308

292

281

276

277

284

277

272

272

287

271

284

272

281

209

266

268

270

271

268

264

329

HOT.

313

263

262

268

204

267

190

265

269

270

269

261

134

5

0

0

0

5

5

0

0

0

0

0

0

5

0

0

0

0

"

Dec.

0

2

2

0

0

0

0

0

2

2

0

0

0

0

0

0

0

0

0

4

0

0

2

11

136

219

237

238

241

237

236

Jan.

228

235

236

240

194

238

232

244

248

258

227

200

162

110

165

203

194

156

192

173

66

174

168

151

216

141

114

147

224

224

225

Feb.

225

72

3

3

3

5

4

4

4

3

3

3

3

3

3

3

3

3

3

3

3

3

3

4

4

3

4

4

3

-

-

Month

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

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

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

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

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

Water year 1939-40. .....................

Mar.

3

3

3

3

3

3

3

3

3

3

119

190

193

192

192

192

192

190

191

190

182

530

701

704

699

693

704

468

398

390

353

Apr.

365

384

383

382

383

386

384

386

386

386

386

389

390

388

383

390

392

398

398

398

502

620

588

850

1,040

1,030

1,040

1,030

1,050

1,070

-

Seoondfoot-days

9,219

3,255

1 * 569

161,217

5,985

387

7,693

16,557

29 849

34! 893

18,698

22,927

17,862

168,894

May

1,070

1,090

1,080

1,080

1,070

1,070

1,080

1,080

958

896

901

901

901

899

894

894

868

894

891

891

894

899

904

904

914

927

925

964

1,030

1,040

1,040

MajcinusL

548

313

241

1,470

258

SS5

704

1,070

1,090

1,560

836

826

730

1,560

June

1,040

1,040

1,040

1,030

1,030

1,030

1,040

1,160

1,430

1,390

1,340

1,350

1,350

1,470

1,560

1,550

1,560

1,560

1,330

1,200

1,180

1,170

1,140

1,120

1,100

992

871

518

616

686

-

July

570

548

540

538

534

534

534

532

528

568

594

594

588

588

582

582

582

580

580

580

580

574

572

572

580

701

732

728

728

819

836

M1n1rniTin

209

0

0

0

66

3

3

365

868

518

528

640

536

0

Aug.

826

800

795

790

783

764

761

749

744

742

740

761

776

780

771

768

761

740

715

699

719

740

744

726

693

693

671

640

653

690

693

Me»n

297

108

50.6

442

193

13.3

248

552

963

1,163

603

740

595

461

Sept.

688

717

730

728

723

688

642

612

584

578

580

580

582

560

540

540

536

536

546

548

546

554

564

566

566

566

566

564

564

568

-

Run-off in 

acre-feet

18,290

6,460

3,110

319,800

11, 870

768

15,260

32,840

69J210

37 090

45)480

35, 430

335,000

Hote.- No gage-height record Nov. 

by Modesto Irrigation District.

14 to Dec. 23, Feb. 3 to Mar. 10; record of discharge furnished

9-232 February 1936

UNITED STATES DEPARTMENT OF THE IHTERIOR 

Geological Survey
TUOUIMNE RIVER BASIN 215

Turlock canal near La Grange, Calif.

Location.- Water-stage recorder and concrete control, lat. o7°40'0011 , long. 120°26'2511 , 

near north line of NWt sec. 21, T. 3 S., R. 14 £., 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 1940. 

Average discharge.- 42 years, 471 second-feet.

Extremes.- Maximum daily discharge during year, 2,060 second-feet June 16-19; minimum 

daily, 3.3 second-feet Nov. 12.

1898-1940: Maximum dally discharge, 2,110 second-feet May 2, 1939; no diversion 

for irrigation during some periods of each year. Previous to 1939, unmeasured small 

discharge during winter, called zero.

Remarks.- Records excellent except those for very low stages, which are good. Canal 

diverts water 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 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

72

155

152

150

16S

1S3

178

45

203

192

196

193

199

212

532

615

631

586

5SO

59S

551

414

555

325

137

163

164

93

24

82

9.5

Hov.

13

11

11

10

8.5

S.5

134

52

41

40

9

3.3

167

353

315

319

313

296

188

338

344

346

193

297

342

210

376

341

315

302

-

Dec.

302

280

1S2

332

344

318

360

320

308

236

367

311

297

303

2S7

277

181

314

312

297

308 '

316

312

208

28

56

77

90

150

97

8.5

Jan.

4.9

9.5

9

8.5

S.5

7.5

4.4

5.5

15

6

5

5

8

7

7

8

8

7

8

8

6

5.5

5.5

4.8

5.5

6

7

589

508

521

530

Feb.

523

676

753

655

592

321

224

219

219

235

227

211

211

230

235

230

227

227

315

367

373

373

274

180

74

74

39

9.5

6

-

-

Month

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

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

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

Mav. ....... .. . ..

Water year 1939-40..... .................

Mar.

7.5

9

8

7.5

7

7.5

7.5

22

32

32

155

221

234

330

512

551

512

500

506

593

688

685

710

730

744

719

741

638

601

335

161

Apr.

154

159

271

372

506

632

624

624

624

624

621

61S

727

817

1,110

1,200

1,300

1,380

1,560

1,630

1,590

1,660

1,710

1,700

1,690

1,690

1,680

1,680

1,500

1,400

-

Secondfoot-days

8,357.5

5,696.3

7,578.5

266,487.8

2,338.1

8,304.5

11,006.0

31, 853

48,202

55, 230

37, 100

34,810

25,516

275,991.9

May

1,430

557

965

1,600

1,5SO

1,610

1,600

1,620

1,660

1,640

1,620

1,600

1,600

1,590

1,560

1,600

1,620

1,610

1,600

1,590

1,590

1,610

1,600

1,590

1,620

1,620

1,610

1,620

1,700

1,710

1,680

Mq-^THillll

631

376

367

2,110

589

753

744

1,710

1,710

2,060

1,300

1,260

975

2,060

June

1,690

1,710

1,700

1,710

1,700

1,760

1,820

1,820

1,810

l.SSO

1,920

1,950

2,000

2,030

2,060

2,060

2,060

2,060

2,060

1,980

1,940

1,920

1,810

1,740

1,730

1,840

1,800

1,380

1,980

1,310

-

July

1,260

1,290

1,230

1,240

1.E80

1,300

1,230

1,300

1,290

1,260

1,220

1,220

1,210

1,150

1,220

1,210

1,190

1,210

1,220

1,210

1,160

1,210

1,220

1,220

1,220

1,000

1,100

1,030

1,100

1,020

1,030

Minimum

9.5

3.3

8.5

3.3

4.4

6

7

154

557

1,310

1,000

910

444

3.3

Aug.

1,040

1,080

1,100

1,040

1,090

1,120

1,140

1,150

1,190

1,170

1,150

1,160

1,150

1,160

1,180

1,200

1,190

1,150

1,040

1,070

1,090

1,070

1,080

1,100

1,050

1,160

1,210

1,260

1,260

1,050

910

Mean

270

190

244

730

75.4

286

355

1,062

1,555

1,841

1,197

1,123

851

754

Sept.

301

79 S

780

672

734

774

844

740

892

886

924

934

938

914

806

928

972

966

960

957

916

778

882

942

953

975

958

964

484

444

-

Run-off in 

acre-feet

16,580

11,300

15,030

528,600

4,640

16,470

21,830

63, 180

95,610

109,500

73, 590

69,040

50,610

547,400

9-2S2 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
216 STANISLAUS RIVER BASIN

Middle Fork of Stanislaus River at Kennedy Meadows, Calif.

Location.- Water-stage recorder, lat. 38°18', long. 119°45', in NEt sec. 11,- T. 5 N., R. 

20 D., at upper end of Kennedy Meadows, 1 mile upstream from Deadman Creek and 2 milss 

downstream from Relief Reservoir. Altitude of gage, about 6,450 feet (from topographic 

map).

Drainage area.- 49.5 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 880 second-feet May 25 (gage height, 5.60 feet); 

minimum, 15 second-feet Nov. 16-21.

1938-40: Maximum discharge, that of May 25, 1940; minimum, 11 second-feet Jan. 5, 

1939.

Remarks.- Records good except those for period of doubtful gage-height record, and those 

affected by Ice, which are fair. Flow regulated by Relief Reservoir (capacity, 15,000 

acre-feet); no diversions.

Cooperation.- Water-stage recorder graph and results of four discharge measurements furnIshed by the Pacific Gas & Electric Co., in connection with a Federal Power Commission project.

Rating table, water year 1939-40, except periods of ice effect (gage height, in feet, 

and discharge, in second-feet)

1.2 

1.4 

1.6 

1.8 

2.0

2.3 

2.6 

2.9 

3.2 

3.5

59

81

111

150

198

3.8 

4.1 

4.4 

5.0 

5.6

251 

322 

412 

628 

8SO

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

50 

31

Oct.

31 

42 

40 

39 

38

40 

35 

33 

31 

31

31 

42 

75 

110

181 

178 

175 

173 

178

186 

183 

190 

198 

196

195 

196 

196 

193 

191 

191

Nov.

191 

193 

205 

201 

198

208 

215 

212 

d210 

d210

d205 

d205 

d200 

137 

16

15 

15 

15 

15 

15

15 

135 

210 

205 

201

215 

249 

306 

273 

25

Dec.

21 

20 

19 

18 

18

20 

20 

19 

19 

27

29 

22 

21 

20 

20

20 

19 

19 

18 

18

17 

17 

17 

17 

17

17 

17 

17 

17 

17 

17

Jan.

20 

104 

60 

52 

40

36 

34 

31 

31 

35

40 

35 

34 

33 

32

30 

30 

30 

30 

29

28 

28 

28 

27 

38

75 

58 

46 

43 

40 

38

Feb.

40 

36 

35 

38 

36

35 

33 

33 

31 

31

31 

31 

30 

29 

29

29 

29 

29 

29 

29

29 

28 

28 

28 

29

29 

29 

29 

29

Month

Oot 

Not 

Deo

C

Jan 

Fet 

Mar 

Apr 

Ma, 

Jun 

Jul 

Aug 

Sep

H

nary

y. .....................................

ater year 1939-40. .....................

Mar.

30 

31 

32 

34 

34

36 

44 

54 

56 

51

46 

42 

40 

40 

42

44 

46 

48 

54 

65

75 

89 

111 

122 

188

195 

210 

104 

65 

75 

62

Apr.

52 

44 

40 

38 

35

35 

38 

39 

43 

52

63

80 

109 

132 

124

101 

96 

110 

127 

139

150 

168 

179 

170 

143

117 

98 

87 

82 

87

Secondfoot-days

3,780 

4,715 

594

28,368

1,215 

901 

2,165 

2,778 

15,113 

15,505 

4,319 

1,930

58,981

May

113 

170 

191 

167 

142

137 

150 

181 

220 

259

284 

306 

432 

680 

660

676 

763 

664 

613 

725

784 

771 

750 

827 

796

664 

620 

680 

652 

556 

480

Mazlmum

198 

306 

29

377

104 

40 

210 

179 

827 

716 

270 

168

827

June

628 

601 

560 

586 

590

502 

439 

523 

586 

624

668 

680 

692 

716 

668

636 

692 

538 

415

406

487 

505 

446 

419 

377

347 

299 

289 

304 

282

July

270 

264 

266 

253 

224

208 

205 

191 

183 

170

153 

146 

132 

126 

128

131 

119 

109 

100 

87

84 

86 

83 

86 

86

81 

74 

75 

72 

67 

60

Minimum

31 

15 

17

15

20 

28 

30 

35 

113 

282 

60 

25

15

Aug.

57 

52 

50 

51 

52

50 

49 

48 

46 

46

45 

44 

43 

40 

36

34 

33 

31 

29 

28

28 

27 

26 

25 

26

94 

168 

168 

168 

168 

168

Mean

122 

157 

19.2

77.7

39.2 

31.1 

70.0 

92.6 

488 

517 

139 

62.3

161

Sept.

167 

165 

165 

170 

175

173 

171 

170 

168 

188

220 

219 

217 

215 

213

212 

213 

219 

213 

210

206 

203 

201 

198 

195

201 

206 

203 

231 

259

Run-off in 

acre-feet

7,500 

9,350 

1,180

56,270

2,410 

1,790 

4,290 

5,510 

29,980 

30,750 

8,570 

3,830

117,000

Peak discharge.- May 25 (1 a.m.) 88 sec. -ft.

Note.- Stage

9-832 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
STANISLAUS RIVER BASIN *if

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 N., 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 1940.

Average discharge"?- 34 years (1905-8, 1909-39), 683 second-feet.

Extremes.- Maximum discharge during year, 4,690 second-feet Mar. 27 (gage height, 10.6 

feet); minimum, 68 second-feet Nov. 22.

1905-40: 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 velocity-area studies; minimum discharge, 30 second-feet Aug. 24, 1924.

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

Flow regulated by Relief Reservoir (capacity,_15,800 acre-feet). Water diverted by 

Philadelphia canal from South Fork of Stanislaus River through Spring Gap powerhouse 

.into Middle Fork above station (see p. 222).

Cooperation.- Water-stage recorder'graph and results of four discharge measurements furnlshed by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet)

2.9

3.0 

3.2 

3.4

68

79

104

130

3.6 

3.8 

4.0 

4.4

15S 

190 

228 

318

4.S 

5.2 

5.6 

6.0

426

548

685

840

6.5 

7.0 

7.5 

S.O

1,080

1,340

1,650

2,000

S.5

9.0

9.5

10.6

2,410 

2,S60 

3,360 

4,690

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

OR CO

29

30

31

Oct.

105

232

203

161

17S

226

2.34

194

185

1S2

200

211

224

252

289

339

347

336

277

263

296

331

334

354

362

354

373

390

381

370

362

HOT.

354

347

354

357

352

344

365

367

365

357

352

349 '339

336

242

96

7S

76

76

76

75

72

236

326

344

352

367

420

462

324

-

Dec.

152

140

137

133

130

129

136

134

131

136

170

161

143

141

13S

138

136

134

134

133

131

120

121

133

121

121

133

127

133

151

147

Jan.

145

S69

687

666

444

347

321

456

564

564

SS5

930

564

474

409

381

360

349

328

323

306

304

299

239

3S7

1,560

1,210

796

682

629

594

Feb.

601

570

654

760

671

740

702

61S

574

558

545

510

495

510

480

459

4SO

459

435

438

450

459

S40

S24

720

S28

1,410

1,700

1,400

_

-

Month

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

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

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

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

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

Water year 1939-40 .....................

Mar.

1,100

990

S76

S12

7SO

772

S50

930

930

850

SOO

700

700

670

685

699

706

720

720

SOO

950

1,080

1,200

1,300

2,000

3,600

3,800

2,300

2,700

3,160

2,770

Apr.

2,080

1,700

1,500

1,370

1,250

1,190

1,220

1,210

1,230

1,320

1,470

1,680

1,990

2,200

1,950

1,500

1,500

l.SOO

2,100

2,100

2,200

2,350

2,500

2,460

2,250

1,770

1,500

1,410

1,350

1,370

Secondfoot-days

3,545

8,560

4,224

142,242

17,162

19,890

40,950

51,520

89,140

49,803

13,371

5,365

9,650

318,680

May

1,S20

2,480

2,580

2,390

1,380

1,900

2,030

2,370

2,720

3,200

3,490

3,560

3,560

3,640

3,400

3,330

3,750

3,300

3,060

3,160

3,390

3,350

3,300

3,540

3,330

2,820

2,610

2,600

2,450

2,180

1,950

KRyliimm

390

462

170

1,670

1,560

1,700

3,800

2,500

3,750

2,260

760

2S7

3S4

3,300

June

2,260

2,150

1,950

2,020

1,970

2,010

1,840

1,680

1,920

2,000

2,140

2,160

2,130

2,140

2,070

1,820

1,960

1,780

1,460

1,300

1,410

1,390

1,190

1,160

1,120

1,000

950

912

903

SOS

July

760

743

736

713

650

615

59S

574

548

519

495

465

404

401

390

404

392

365

352

326

304

292

2S4

277

2SO

270

259

252

246

232

220

Minimum

105

72

120

72

145

435

670

1,190

'sos

220

143

2S2

72

Aug.

215

209

203

200

196

196

19S

193

190

1S5

ISO

173

172

166

164

161

157

152

148

145

143

144

145

147

151

155

224

2S7

287

2S7

2S7

Mean

276

235

136

390

554

686

1,321

1,717

£ S75

l)660

431

1S9

322

871

Sept.

2S2

282

234

287

296

299

296

292

292

289

31S

344

344

341

336

336

341

349

347

341

341

336

334

328

326

321

328

323

328

384

Run-off in 

acre-feet

16,950

16,980

S.3SO

232,100

34,040

39,450

81,220

102,200

176,800

98,780

26, 520

11,630

19,140

632,100

Peak discharge.- Mar. 27, 4,690 sec.-ft.5 May 12 (11:30 p.m.) 4,470 sec.-ft.

 Hote.- No gage-height record Mar. 7-14, 18-29, Apr. 14-23; discharge computed on basis of records 

for Horth Pork of Stanislaus River near Avery.
218 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. IN., R. 13 E., at Melones Dam on Stanislaus River, 0.1 mile downstream 

from Bear Creek. Datum of gage is at mean sea level.

Drainage area.- 897 square miles.

Records available.- June 1927 to September 1940.

Extremes.- Maximum contents observed during year, 112,600 acre-feet June 9-24 (elevation,

 735.0 feet); minimum observed, 6,830 acre-feet Dec. 22 (elevation, 629.2 feet).

1927-40: Maximum contents, 114,800 acre-feet June 8, 1936 (elevation, 736.8 feet); 

minimum, 5,820 acre-feet Oct. 12, 1929 (elevation, 625.7 feet).

Remarks.- Reservoir is formed by concrete overflow dam; storage began Aug. 21, 1926; dam 

completed in December 1926. Capacity for power development 1 mile below dam is 

106,100 acre-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 2,630 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 Pacific Gas & Electric Co. in connection 

with a Federal Power Commission project.

Contents, in acre-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

30

31

Oct.

7,550

7,450

7,450

7,850

7,910

8,020

7,9SO

8,150

8,190

8,190

*B,020

7,880

7,740

7,520

7,680

7,810

7,880

7,810

7,880

8,050

7,980

7,910

7,910

7,850

7,980

8,190

8,320

8,500

8,750

8,890

9,000

NOT.

9,150

9,260

9,380

9,340

9,300

9,190

9,110

9,040

9,000

9,000

8,970

8,890

8,790

8,640

8,530

8,190

7,610

7,260

7,290

7,360

7,360

7,420

7,390

7,740

8,050

8,860

9,410

10,000

10,600

11,300

-

Dec.

11,500

11,800

11,900

12,100

11,800

11,400

10,800

10,300

9,870

10,000

10,500

10,400

10,200

9,870

9,410

9,000

8,930

8,750

8,250

7,780

7,550

6,830

7,290

7,490

7,880

8,250

8,320

8,430

8,460

8,610

8,890

Jan.

9,110

9,720

14,200

16,400

18,300

19,600

19,400

19,900

23,600

31,900

38,500

45,500

50,400

52,000

52,700

52,900

53,000

52,700

52,300

51,900

51,400

50,700

50,100

49,500

48,900

54,900

65,100

70,100

72,300

74,100

75,400

Feb.

76,500

77,400

78,600

82,700

36,900

39,400

93,000

93,600

93,300

93,300

93,100

93,000

92,700

93,000

93,300

92,800

92,800

93,100

93,300

92,800

92,700

92,700

93,500

95,300

94,300

94,500

97,200

98,400

97,800

_

-

Mar.

96,200

95,300

95,000

94,500

94,100

94,000

94,000

93,800

94,000

94,100

94,000

93,500

93,300

93,100

93,100

93,100

93,100

93,100

93,300

93,300

93,600

94,100

94,600

95,000

95,500

96,700

104, 600

101,600

99,700

101,900

108,700

Apr.

103,300

105,100

105,800

105,300

104,400

103,500

104,400

105,100

103,300

102, 600

102,400

102,800

103,500

105,300

106,700

105, 600

103,800

103,100

103,800

104,900

105,600

106,200

107,100

107,500

107,100

106,000

104,600

103,500

103,000

102,100

-

May

101,400

102,800

106,400

107,100

106,700

105, 600

104,400

104,400

105, 600

105, 600

106,200

112,600

112,600

112,600

110,800

109,700

109,100

109,300

108,600

108,000

107 , 500

108,000

108,000

107,800

108,200

107,600

107,100

105,600

105,100

104,400

104,000

June

102,800

103,600

104,000

102,800

102,800

105,800

108,200

110, 900

112, 600

112, 600

112,600

112,600

112, 600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,400

112,100

111,700

111,100

110,800

111,400

-

July

109,800

109,100

108,600

107,600

106,900

106,000

105,100

104,000

102,800

101,800

100,400

99,200

97,800

96,500

95,000

93,600

92,200

90,700

89,100

87,700

86,300

84,700

83,200

81,500

79,900

78,300

76,900

75,100

73,300

71,600

70,000

Aug.

68,000

66,400

64, 600

62,800

61,100

59,500

57,600

55,500

54,300

52,300

50,600

48,700

47,000

45,100

43,500

41,800

40,100

38,400

36,600

35,000

33,300

31,600

29,800

28,300

26,500

24,800

23,200

21,900

20, 600

19,400

18,300

Sept.

17,200

16,000

14,600

13,400

12,400

11,700

11,000

10,400

9,570

9,300

9,110

8,890

8,860

6,750

8,680

8,570

8,500

8,430

8,350

8,350

8,350

8,430

8,350

8,250

8,220

8,080

8,080

8,020

7,950

7,950

-

Monthly elevation and contents, water year October 1939 to September 1940

Date

Dec. 31.... ...............

Calendar year 1939 ......

Jan. 31..... ..............

Water year 1939-40......

Elevation 

(feet)

632.3 

635.7 

641.5 

635.4

-

712.2 

726.7 

732.9 

729.2 

730.3 

734.3 

708.4 

654.9 

632.7

-

Contents 

(acre-feet)

7,810 

9,000 

11,300 

8,890

-

75,400 

97,800 

108,700 

102,100 

104,000 

111,400 

70,000 

18,300 

7,950

-

Change in contents 

during month 

(acre-feet)

+1,190 

+2,300 

-2,410

-13,500

+66,500 

+22,400 

+10,900 

-6,600 

+1,900 

+7,400 

-41,400 

-51,700 

-10,350

+140
STANISLAUS RIVER BASIN

Stanislaus River below Melones powerhouse, Calif.

219

Location.- Water-stage recorder, lat, 37°56'50", long. 120°31'45", near line between sees. 

10 and 15, T. IN., 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 map).

Drainage area.- 898 square miles.

Records available.- January 1931 to September 1940.

Extremes.- Maximum discharge during year, 22,800 second-feet Mar. 31 (gage height, 17.6 

feet)'; minimum, 4 second-feet Dec. 29'.

1931-40: Maximum discharge, that of Mar. 31, 1940; minimum, about 1 second-foot 

Feb. 6, 1933, Dec. 9, 1937.

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

good. Flow regulated by Melones Reservoir (p. 218 ), several smaller reservoirs, and 

diversions above station.

Cooperation.- Water-stage recorder graph and results of five discharge measurements furnlshed by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

12 

IS 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

81

Oct.

214 

211

217 

214 

218

252 

261 

258 

256 

293

286 

294 

299 

298 

295

294 

335 

350 

352 

352

344 

349 

357 

350 

358

356 

364 

366 

356 

356 

358

HOT.

350 

352 

420 

438 

438

430 

426 

428 

421 

425

427 

432 

429 

436 

432

434 

280 

111 

116 

120

132 

127 

119 

131 

169

208 

165 

172 

167 

285

Dec.

127 

172 

40 

373 

428

443 

448 

447 

109 

48

443 

443 

454 

448 

432

398 

161 

444 

443 

422

422 

44 

90 

10 

10

177 

149 

159 

149 

95 

110

Jan.

64 

249 

490 

800 

792

873 

860 

865 

914 

943

970 

976 

970 

975 

1,010

1,000 

1,000 

1,000 

1,000 

975

975 

975 

975 

955 

950

990 

965 

960 

1,000 

1,000 

1,020

Feb.

1,020 

1,020 

1,040 

821 

1,030

1,040 

1,700 

2,100 

1,890 

1,700

1,570 

1,440 

1,340 

1,660 

1,700

1,460 

1,410 

1,340 

1,700 

1,420

1,290 

895 

2,370 

3,760 

2,820

3,190 

10,400 

10,900 

8,710

Month

Oct 

Hov 

Dec.

C

Jan

Feb 

Mar 

Apr 

Hay 

Jun 

Jul 

Aug 

Sep

H

ember. .................................

alendar year 19

11.....................................

ater year 1939-4

Mar.

5,630 

3,900 

3,300 

2,250 

2,500

2,100 

2,300 

2,300 

2,200 

2,350

2,280 

1,880 

1,760 

1,580 

1,590

1,770 

1,640 

1,780 

1,690 

1,710

1,890 

2,090 

2,470 

2,800 

3,650

5,230 

14,000 

7,570 

6,370 

11,600 

17,300

Apr.

7,720 

4,630 

4,630 

4,300 

3,800

3,530 

1,690 

4,160 

3,670 

3,500

3,570 

3,870 

4,000 

4,450 

5,330

4,790 

4,050 

3,940 

4,160 

4,630

4,790 

5,100 

5,450 

5,550 

5,300

4,460 

3,850 

3,220 

3,410 

3,400

Seoondfoot-days

9,463 

9,020 

8,138

255,424

27,491 

72,736 

121,480 

128,950 

168,390 

70,450 

36,400 

32,790 

15,117

700,425

May

3,340 

4,060 

5,200 

5,560 

4,680

4,740 

4,290 

4,400 

5,310 

6,510

5,540 

4,000 

7,550 

8,310 

7,200

6,450 

6,400 

6,420 

5,680 

5,780

5,800 

5,970 

5,850 

5,920 

5,970

5,020 

5,330 

4,780 

4,550 

3,760 

4,020

Maximum

366 

438 

454

2,880

1,020 

10,900 

17,300 

7,720 

8,310 

4,090 

1,240 

1,140 

914

17,300

June

3,470 

3,510 

4,090 

3,390 

2,150

1,800 

1,850 

1,820 

2,730 

2,840

3,150 

3,090 

3,110 

3,100 

3,110

2,730 

2,650 

2,600 

2,190 

1,870

1,750 

1,780 

1,760 

1,630 

1,540

1,460 

1,420 

1,340 

1,260 

1,260

July

1,240 

1,200 

1,200 

1,200 

1,200

1,190 

1,190 

1,180 

1,180 

1,180

1,180 

1,180 

1,180 

1,180 

1,180

1,180 

1,170 

1,170 

1,170 

1,170

1,160 

1,160 

1,160 

1,160 

1,150

1,150 

1,160 

1,150 

1,150 

1,140 

1,140

Minimum

211 

111 

10

10

64 

821 

1,580 

1,690 

3,340 

1,260 

1,140 

914 

373

10

Aug.

1,140 

1,140 

1,140 

1,140 

1,130

1,130 

1,130 

1,130 

1,120 

1,120

1,120

1,080 

1,060 

1,060 

1,060

1,060 

1,060 

1,060 

1,060 

1,060

1,060 

1,060 

1,030 

1,020 

1,010

1,000 

946 

922 

914 

914 

914

Mean

305 

301 

263

700

887 

2,508 

3,919 

4,298 

5,432 

2,348 

1,174 

1,058 

504

1,914

Sept.

914 

906 

898 

810 

706

685 

678 

664 

535 

424

424 

424 

418 

407 

407

407 

407 

407 

390 

373

373 

379 

384 

384 

379

379 

379 

379 

379 

418

Run-off in 

acre-feet

18,770 

17,890 

16,140

506,600

54,530 

144,300 

241,000 

255,800 

334,000 

139,700 

72,200 

65,040 

29,960

1,389,000

Hote^- No gage-height record Jan. 13 to Feb. 2, Mar. 2-8, Apr. 3-9; discharge computed on basis 

of flow through Helones power plant and unpublished record of flow above power plant.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
220 STANISLAUS RIVER BASIN

North Fork of Stanislaus River near Avery, Calif.

Location.- Water-stage recorder, lat. 38°14', long. 120°17', in sec. 35, T. 5 N., R. 15 

E., 700 feet upstream from intake of Utica Mining Co.'s canal, 3-J 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 1923 to September 1940.

Average discharge.- 19 years (1914-22, 1929-40), 410 second-feet.

Extremes.- Maximum discharge during year, 7,880 second-feet Mar. 26 (gage height, 9.82 

reet); minimum, 26 second-feet Dec. 25 (gage height, 0.85 foot).

1914-22, 1928-40: Maximum discharge, 17,700 second-feet Dec. 11, 1937 (gage 

height, 14.1 feet, from flooclmarks), from rating curve extended above 3,400 secondfeet on basis of AI/5" studies; minimum, 5.5 second-feet Dec. 6, 7, 1929.

Remarks.- Records good. Flow regulated by three reservoirs above station and diversion 

from Beaver Creek.

Rating tatle, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

1.0 

1.2 

1.4 

1.6

1.8 

2.0 

2.6 

3.0

102

125

224

318

3.5 

4.0 

4.5 

5.0

470

655

900

1,230

5.5 1,650

6.0 2,140

7.0 3,340

8.0 4,800

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

92 

79 

42 

38

42 

123 

62 

56 

48

44 

42 

41 

55 

54

53 

53 

53 

52 

52

50 

54 

58 

61 

76

80 

78 

80 

77 

72 

68

HOT.

65 

63 

60 

56 

51

46 

45 

49 

49 

51

50 

48 

46 

46 

49

48 

47 

47 

48 

49

49 

49 

49 

48 

49

67 

61 

57 

49 

53

Dec.

47 

48 

48 

47 

46

49 

51 

53 

52 

53

141 

111 

81 

80 

65

61 

58 

56 

56 

55

53 

45 

52 

46 

37

47 

40 

41 

47 

73 

65

Jan.

80 

1,190 

442 

594 

285

204 

196 

435 

536 

484

830 

756 

388 

305 

256

237 

224 

220 

208 

200

193 

191 

185 

180 

320

1,470 

884 

558 

467 

444 

428

Feb.

451 

406 

533 

568 

451

599 

540 

412 

364 

361

367 

332 

310 

326 

300

278 

282 

273 

259 

261

268 

280 

631 

536 

491

662 

1,460 

1,730 

1,130

Month

Dot

Nov 

Dec

C

Jan 

Feti 

Mar 

Apr 

May 

jun 

Jill 

Aug 

Sep

«

uaz*y ....

TtSt. ...................................

ater year 1939-4 3....... .......

Mar.

757 

678 

591 

530 

522

522 

583 

704 

736 

619

516 

441 

422 

416 

457

494 

522 

558 

554 

709

795 

942 

1,120 

1,160 

2,070

3,540 

3,830 

1,750 

2,210 

4,740 

2,370

Apr.

1, 

1, 

I,

1, 

1,

1, 

1, 

2, 

2,

1,

1, 

1, 

1, 

2, 

2,

2, 

2, 

2, 

2, 

1,

1, 

1, 

1, 

1, 

1,

Seoondfoot-days

1,912 

1,544 

1,804

72,978

13,390 

14,861 

35,858 

44,743 

58,804 

13,470 

1,829 

1,402 

1,337

190,954

Peak discharge.- Mar. 26 (11:30 p.m.) 7,880 sec. -ft.-

(10 p.m.) 3,790 aec 

Note.- Discharge

.-ft. 

computed from once-daily staff-gage

570 

200 

060 

930 

820

795 

924 

924 

060 

250

470 

720 

020 

180 

920

280 

310 

740 

020 

010

120 

350 

420 

240 

820

270 

060 

020 

060 

180

May

1,830 

2,680 

2,550 

2,230 

1,510

1,500 

1,680 

2,060 

2,390 

2,600

2,770 

2,700 

2,570 

2,300 

2,150

2,060 

2,180 

1,930 

1,740 

1,800

1,900 

1,840 

1,770 

1,790 

1,630

1,360 

1,190 

1,170 

1,090 

973 

856

Maximum

123 

67 

141

1,410

1,470 

1,730 

4,740 

2; 420 

2,770 

1,070 

96 

52 

61

4,740

June

1,070 

918 

780 

770 

736

760 

691 

664 

595 

568

583 

558 

530 

505 

470

397 

397 

361 

308 

256

247 

224 

183 

163 

154

135 

120 

113 

110 

104

July

96 

94 

67 

81 

75

68 

61 

57 

52 

49

53 

49 

47 

48 

62

61 

59 

54 

53 

53

52 

51 

50 

49 

49

50 

52 

55 

55 

54 

53

Av«.

52 

51 

51 

51 

49

49 

48 

47 

48 

49

49 

48 

46 

46 

44

47 

49 

47 

46 

44

43 

43 

44 

43 

40

38 

34 

45 

39 

34 

38

Minimum Mean

38 61.7 

45 51.5 

37 58.2

33 200

80 432 

259 512 

416 1,157 

795 1,491 

856 1,897 

104 449 

47 59.0 

34 45.2 

36 44.6

34 522

Sept.

41 

52 

60 

61 

53

48 

46 

46 

46 

46

45 

43 

39 

40 

39

40 

40 

42 

46 

49

37 

36 

39 

44 

44

43 

43 

43 

43 

43

Run-off in 

acre-feet

3,790 

3,060 

3,580

144,800

26,560 

29,480 

71,120 

88,750 

116,600 

26,720 

3,630 

2,780 

2,650

378,700

Mar. 30 (1 p.m.) 6,300 sec. -ft.; May 2 

readings Oct. 3-18, Nov. 22 to Dec. 18.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
STANISLAUS RIVER BASIN 221

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. 

18 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 tq September 1940. October 1911 to January 1917, at site 

1 mile downstream .

Extrenes.- Maximum discharge during. year, 1,150 second-feet May 12 (gage height, 5.32 

feet): minimum, 2.2 second-feet Nov. 18-22.

1911-17, 1938-40: 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 except those for periods of ice effect or no gage-height record, 

which are fair. Flow regulated by Strawberry Reservoir.

Cooperation.- Water-stage recorder graph and results of five discharge measurements furnishecl by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

1.3

1.4

1.5

1.6 

1.8

4.0

8

13

20

2.0 

2.2 

2.4 

2.6 

2.8

126 

16O

3.0 

3.2 

3.4 

3.6 

3.8

200

244

290

340

398

4.0 

4.4 

4.8 

5.4

845

1,200

Discharge, in second-feet, water year October 1939 to September 194O

Day

1

2

3

4

5

6

7

8

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

30

10

9.5

20

29

26

26

33

49

63

68

67

66

65

64

63

50

7

7

42

55

57

59

60

61

62

64

65

65

65

HOT.

64

63

a61

59

59

59

60

60

60

59

59

59

59

58

46

3.4

3.4

3.2

3.2

3.2

3.2

3.2

36

55

6O

60

6O

60

60

6O

Dec.

60

60

60

60

60

61

61

61

61

63

67

63

61

6O

60

60

6O

60

60

59

58

58

58

58

58

58

58

58

58

59

59

Jan.

60

133

44

46

53

54

55

55

55

35

38

56

52

52

52

59

59

60

59

59

55

54

55

55

55

63

46

47

52

50

48

Feb.

47

49

55

55

54

40

38

53

52

52

52

51

50

50

49

49

51

50

50

49

b47

b45

b43

b41

b40

b38

b37

b35

b34

H

-

Month

Calendar year 1939 ......................

Jan 

Pet 

Mar

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

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

£*Sep

 ust. ....... ........

Water year 1939-40......................

Mar.

32

31

40

48

49

50

52

56

59

56

52

49

48

50

53

54

54

55

56

63

70

70

73

82

142

165

183

95

94

128

102

Apr.

85

allS

115

82

69

92

126

126

139

174

237

295

365

44O

420

266

248

315

414

434

481

370

454

481

465

322

226

196

186

240

-

Secondfoot-days

1,434.5

1,358.8

1,867

24,553.3

1,716 

1,356 

2,211

7,978

22,4O8

11,543

1,636

1,643 

1,672

56,813.3

May

427

705

715

660

362

348

424

590

752

872

960

972

930

862

784

774

966

845

740

784

918

878

845

948

862

710

675

680

622

384

414

Maximum

68

64

67

387

133

55 

183

481

972

762

66

55 

58

972

June

762

599

554

558

541

590

581

558

568

594

568

545

529

545

448

392

338

253

164

244

295

24O

190

176

158

128

120

12O

106

79

July

66

63

59

54

55

60

57

53

51

51

52

46

30

42

5O

53

53

52

52

53

53

53

53

52

52

53

53

53

54

54

54

Minimum

7

3.2

58

3.0

35 

34 

31

69

348

79

30

50 

53

3.2

Aug.

54

53

53

54

54

53

53

53

52

51

50

50

51

51

52

53

53

53

53

53

53

53

53

53

54

54

54

55

55

55

55

Mean

46.3

45.3

59.9

67.3

55.4 

46.8 

71.3

266

723

385

52.8

53.0 

55.7

155

Sept.

65

55

65

55

55

55

55

55

55

55

54

54

a54

a54

a54

a 53

a53

h53

55

58

58

58

58

58

58

58

58

58

58

58

Run-off in 

acre-feet

2,850

2,700

3,680

48,710

3,400 

2,690 

4,390

15,820

44,450

22,900

3,240

3,260 

3,320

112,700

a Ho gage-height record; discharge interpolated or based on records of regulation at Strawberry 

Reservoir. (servolr.

b Stage-discharge relation affected by ice. 

h Discharge computed from staff-gage reading

9-232 February 1936

UHITED STATES DEPARTMENT OP THE IHTERIOR 

Geological Survey
222 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 from diversion dam on South Fork of 

Stanislaus River and 3 miles southwest of Strawberry post office. Altitude of gage, 

about 4,800 feet (from topographic map).

Records available.- October 1939 to September 1940.

Extremes.- Maximum daily discharge during year, 60 second-feet Sept. 21-30; no flow Oct. 

3, 4, 20, May 28 to June 8.

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 and Electric Co.; 

tailrace empties into Middle Fork of Stanislaus River above station at Sand Bar Flat.

Cooperation.- Water-stage recorder record and results of several discharge measurements

 furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1939 to September 194O

Day

1 

2 

3 

4 

5

6

7

a

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

as

24 

25

26

27 

28 

29 

30 

31

Oct.

a21 

a6 

aO 

aO 

a5

a20 

a20 

a20 

a24 

32

49 

55 

56 

57 

57

58 

59 

51

3.0 

0

30 

49 

54 

55 

54

54 

56 

57 

57 

56 

56

HOT.

56 

56 

56 

56 

56

56 

56 

56 

56

56

56 

56 

56 

56 

54

4.0 

1.3 

1.2 

2.7 

3.9

3.9 

3.9 

30 

54 

57

56 

56 

56 

56 

56

Dec.

56 

56 

56 

56 

56

56 

56 

56 

56 

57

58 

57 

56 

56 

56

56 

57 

57 

57 

56

56 

56 

57 

56 

56

56 

56 

56 

56 

57 

57

Jan.

57 

57 

43 

46 

49

57 

57 

57 

56 

55

49 

58 

56 

56 

57

57 

57 

57 

57 

57

56 

56 

57 

57 

57

59 

56 

52 

57 

57 

57

Feb.

57 

57 

59 

58 

57

51 

46 

59 

59 

59

58 

58 

57 

57 

57

57 

b56 

b55 

b54 

b53

«b53 

b51 

b49 

b47 

b45

b44 

b43 

b41 

b40

Month

Dot 

Hot

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

alendar year 

uapy ..... .

il.....................................

ater year 1939-4

Mar.

b36 

b37 

b46 

56 

56

57 

58 

58 

57 

58

58 

56 

56 

57 

58

57

57 

57 

57 

57

57 

56 

55 

57 

57

55 

52 

53 

52 

48 

46

Apr.

48 

51 

52 

48 

49

56 

55 

53 

55 

56

56 

55 

54 

55 

54

54 

57 

57 

54 

53

56 

57 

56 

55 

56

54 

54 

56 

56 

57

Seccndfoot-days

1,171.0 

1,279.9 

1,746

.

1,716 

1,537 

1,679 

1,629 

1,349 

1,128 

1,551 

1,575 

1,691

18,051.9

May

57 

54 

54 

51 

48

51 

52 

52 

51 

52

47 

48 

52 

49 

48

51 

54 

50 

50 

52

53 

51 

51 

51 

51

50 

19 

0 

0 

0 

0

Mfl-^npini

59 

57 

58

_

59 

59 

58 

57 

57 

58 

55 

54 

60

60

June

0 

0 

0 

0 

0

0 

0 

0 

19 

42

54 

58 

58 

53 

54

53 

56 

58 

55 

58

58 

55 

54 

54 

55

55 

54 

54 

54 

17

July

42 

55 

54 

52 

50

55 

52 

50 

49

50

51

48 

27 

40 

47

52 

51 

51 

52 

52

52 

52 

52 

52 

52

52 

52 

52 

52 

51 

52

Minimum

0 

1.2 

56

_

43 

40 

37 

48 

0 

0 

27 

46 

53

0

Aug.

52 

52 

52 

52 

52

52 

52 

51 

51 

50

48 

48 

48 

48 

50

50 

50 

50 

50 

50

50 

50 

50 

50 

51

51 

52 

54 

53 

53 

53

Mean

37.8 

42.7 

56.3

-

55.4 

53.0 

54.2 

54.3 

43.5 

37.6 

50.0 

50.8 

56.4

49.3

Sept.

53 

53 

53 

54 

55

55 

55 

55 

55 

55

55 

54 

54 

54 

54

54 

54 

54 

56 

59

60 

60 

60 

60 

60

60 

60 

60 

60 

60

Run-off in 

acre-feet

2,320 

2,540 

3,460

-

3,400 

3,050 

3,330 

3,230 

2,680 

2,240 

3,080 

3,120 

3,350

35,800

sWinter discharge measurement made on this day.

a No gage-height record; discharge furnished by Pacific 3as & Electric Co.

b Stage-discharge relation affected by Ice.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE IHTERIOR 

Qeological Survey
STANISLAUS RIVER BASIN 223

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 west of Long Barn, and 14 

miles northeast of Sonora. Altitude of gage, about 4,100 feet (from topographic map).

Records available.- October 1937 to September 1940.

Extremes.- Maximum daily discharge during year, 51 second-feet Feb. 11; minimum daily, 

3.2 second-feet May 21.

1937-40: Maximum daily discharge, 54 second-feet June 26, 27, July 1, 1938; no 

flow at times.

Remarks.- Records excellent. Canal 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 results of two discharge measurements furnished by the Pacific Gas & Electric Co., under general supervision of the Geological 

Survey in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

IS

16

17

1 iOA 

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

14

14

13

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

Hov.

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

10

1O

10

-

Dec.

10

6.5

e

e

8

9.5

8.5

8

S

8

8

8

8

S

8

8

8

8

8

8

S

8

8

8

8

8

8

S

8

8

8

Jan.

8

8

9

8.5

10

14

14

11

11

12

11

10

1O

10

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

Feb.

11

11

11

11

11

11

11

20

32

46

51

5O

46

16

15

15

18

20

23

32

31

31

32

31

31

31

34

31

22

-

Month

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

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

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

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

Water year 1939-40. .....................

Mar.

15

15

15

15

15

14

15

15

15

15

15

15

15

25

31

31

3O

31

30

32

32

19

14

14

13

13

14

13

13

13

13

Apr.

13

13

13

13

13

13

13

13

12

11

11

11

11

12

12

11

11

11

11

11

12

9

8.5

8.5

8.5

S

8.5

8.5

10

11

Seoondfoot-days

377

344

252.5

6,249.0

333.5

735

575

331.5

425.9

1,165

659

784

624

6,6O6.4

May

12

13

13

13

12

12

13

13

13

13

13

14

13

13

13

13

13

13

13

3.2

4.7

13

13

13

13

13

13

13

17

30

35

MflTflnrrfln

14

12

10

38

14

51

3S

13

35

42

37

OQ CO

28

51

June

36

36

36

36

36

37

37

37

36

36

37

37

38

38

40

41

40

40

40

41

41

4O

40

4O

40

41

42

42

42

42

July

37

23

22

22

22

22

22

22

22

22

21

21

22

22

22

22

16

21

20

20

20

20

20

20

20

20

20

20

16

20

20

Minimum

12

10

S

O

8

11

13

8

3.2

36

16

20

17

3.2

Aug.

20

21

22

22

22

23

24

24

24

24

24

25

26

26

26

26

26

26

26

27

27

27

28

27

28

2S

27

27

27

27

27

Mean

12.2

11.5

8.15

17.1

10.8

25.3

18.5

11.0

13.7

38.3

21.3

25 3

soie

18.1

Sept.

27

28

27

27

27

26

25

25

24

23

22

20

19

19

19

18

18

18

18

18

18

18

18

18

18

18

17

17

17

17

Run-off in 

acre-feet

748

682

501

12,410

661

1,460

1,140

658

845

2,310

1,310

1,560

1,240

13,120

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
224 STANISLAUS RIVER BASIN

South San Joaquin canal near Knights Ferry, Calif.

Location.- Water-stage recorder, lat. 37°51'20", long. 120°38'15", In sec. 15, T. 1 S., 

R. 12 E., three-quarters of a mile downstream from head gate at Qoodwln 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 1940.

Average discharge.- 21 years (1914-30, 1931-32, 1936-40), 353 second-feet.

Extremes.- Maximum dally discharge during year, 1,010 second-feet June 19, 20, 22, 23, 

27; no flow Dec. 25, Jan. 11 to Mar. 20, Apr. 1, 2, 4-7.

1914-40: Maximum dally discharge, 1.Q70 second-feet July 1-3, 1921; no flow at 

times In each year.

Remarks.- Records good. Canal diverts water from right bank of Stanislaus River at 

 Goodwln Dam for Irrigation In Oakdstle and South San Joaquin Irrigation districts.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

Z

3

4

S

6

7

8

10

11

12

13

16

18

Si

26

Oct.

154

150

147

155

156

172

212

199

202

215

229

215

214

216

214

218

227

254

242

250

264

258

256

259

259

256

258

266

268

207

219

 or.

234

232

240

247

258

264

262

259

233

234

286

348

354

357

354

353

323

125

58

55

57

59

64

66

78

142

142

126

124

143

-

Dec.

208

84

103

46

130

182

182

184

160

104

111

184

182

181

181

181

158

172

182

182

182

166

58

53

0

9.5

128

118

115

109

72

Jan.

77

64

188

204

201

201

206

221

245

89

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

Month

Calendar year 1939 ......................

Mai. ................

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

Water year 1939-4

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

162

369

488

712

762

747

735

690

681

443

51

Apr.

0

0

3

0

0

0

0

149

271

270

271

130

319

664

802

868

911

949

992

991

994

992

997

1,000

970

802

756

748

748

750

See endfoot -days

6,811

6,077

4,107.5

132,043.4

0

16,347

29,068

21,650

8,541

151,969.5

Hay

747

780

826

845

848

h842

h858

h858

h890

h890

h660

439

911

986

981

983

989

991

984

975

984

991

989

984

975

973

930

901

893

893

903

Jifly^imim

268

357

208

949

0

1,000

834

768

584

1,010

June

951

959

954

940

943

948

950

960

960

945

962

962

962

989

984

997

1,000

1,000

1,010

1,010

1,000

1,010

1,010

1,000

1,000

1,000

1,010

962

845

845

July

834

802

802

802

798

794

789

781

781

781

779

781

779

778

762

771

774

771

766

766

765

765

770

771

771

768

770

770

768

762

762

HHi-i^Tniim

147

55

0

0

0

0

845

762

585

156

0

Aug.

765

768

766

765

762

762

760

760

758

757

755

726

699

701

701

699

699

698

690

686

688

685

677

662

652

643

616

588

586

586

585

Mean

220

203

132

362

0

188

969

778

698

285

415

Sept.

584

580

579

516

437

425

423

418

338

213

244

236

232

226

224

224

223

201

175

159

157

156

157

157

157

157

213

243

243

244

Rim-off in 

acre-feet

13,510

12,050

8,150

261,900

3,360

0

32,420

54,940

57,660

47,870

42,940

16,940

301,400

h Discharge computed from staff-gage readings.

9-238 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeologlcal Survey
STANISLAUS RIVER BASIN 225

Oakdale canal near Knights Ferry, Calif.

Location.- Water-stage recorder, lat. 37°51'30n , long. 120?38'00n , in SEi sec. 10, T. 1 

S., R. 12 E., half a mile downstreym from head gate at Qoodwln 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 September 1940.

Average discharge.- 22 years (1914-32, 1936-40), 99.3 second-feet.

Extremes.- Maximum daily discharge during year, 385 second-feet June 14, 21, 22; no flow 

Nov. 19 to Mar. 23, Mar. 27 to Apr. 8.

1914-40: Maximum dally 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 

Gooawln Dam for irrigation In Oakdale irrigation district.

Cooperation.- Gage-height record furnished by Oakdale Irrigation District.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

19

20

81

25

26

27

Oct.

66

66

64

65

64

71

73

69

68

74

85

90

94

94

94

96

108

116

117

117

110

110

112

113

112

114

108

106

112

HOT.

109

108

114

124

125

120

129

140

152

153

96

31

27

29

29

29

22

8

0

0

0

0

0

0

0

0

0

0

0

-

Dec. Jan. Feb.

Month

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

fay.......................................

Water year 1939-4

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

22

58

23

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

41

88

139

220

264

299

319

321

343

343

346

354

352

352

352

357

351

311

313

296

296

316

Secondfoot-days

2 914

0

49,874

6,130

62,104

May

340

363

364

366

364

363

362

362

364

361

364

152

379

379

378

376

381

379

378

377

381

382

380

381

382

381

376

378

377

376

378

Mo-^nnifn

118

0

377

303

385

June

379

379

379

379

378

379

379

382

381

383

382

381

384

385

380

379

381

383

384

384

385

385

382

384

382

382

382

381

380

381

July

382

382

381

383

382

382

381

384

383

382

382

382

381

378

377

377

376

374

373

376

377

372

370

369

368

368

368

368

366

366

365

IHwii'mnfli

0

0

152

______Q

123

0

Aug.

364

365

366

364

364

364

364

364

363

363

363

355

350

347

346

345

344

343

340

339

340

339

326

325

325

322

308

305

304

304

304

Mean

0

137

212

204

170

Sept.

303

302

300

274

256

226

224

222

195

157

161

166

171

174

174

174

173

193

213

215

215

217

222

222

222

221

158

123

125

132

Run-off in 

aore-feet

0

98,920.

204

12,160

123,200

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
226 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 mile south of Jenny Lind and 6& miles 

downstream from Cosgrove Creek. Altitude of gage, about 220 feet.

Drainage area.- 395 square miles.

Records available.- January 1907 to September 1940.

Average discharge.- 31 years (1908-23, 1924-40), 260 second-feet.

Extremes.- Maximum discharge during year, 5,990 second-feet Mar. 31 (gage height, 8.01 

feet); no flow Oct. 1 to Dec. 4 and Sept. 4-30.

1907-40: 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, 1924-40.

Remarks.- Records good. Flow partly regulated by Hogan Reservoir at Stockton floodcontrol dam, by small reservoir on North Fork of Calaveras River, by diversion from 

North Fork into Mokelumne River Basin, and by diversion from North Fork of Stanislaus 

River into Calaveras River above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

ZZ

25

24

25

26

27

28

29

90

SI

Oct. HOT. Dec.

0

0

0

0

4.3

6

1.8

.8

.5

2.5

12

15

30

33

30

29

26

23

21

20

18

17

17

17

16

15

15

15

14

14

14

Jan.

16

21

147

410

529

216

178

938

2,490

2,580

2,680

2,190

1,130

467

281

20S

170

144

122

113

102

98

90

84

321

2,850

2,490

1,220

509

332

262

Feb.

251

224

289

848

634

473

521

416

314

262

227

204

184

563

752

438

438

608

433

323

273

248

590

1,180

908

1,140

3,850

5,500

5,390

-

Month

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

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

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

Water year 1939-4

Mar.

4,160

3,200

2,320

1,110

630

501

414

362

322

294

272

255

235

219

206

203

222

194

175

160

149

146

133

126

184

278

2,320

1,920

1,160

1,950

5,730

Apr.

5,050

3,500

2,730

1,650

805

595

507

450

404

357

322

298

272

255

238

238

219

204

193

184

176

168

160

155

150

160

196

176

155

146

-

Secondfoot-days

0

0

426.9

14,346.9

23; 3 88

27,481

20 ) 113

g 559

789.5

353 4 

39^4

1.3

104,701.5

May

136

129

125

118

121

125

116

110

104

99

93

85

84

82

78

78

76

74

71

67

64

60

56

56

56

56

53

50

46

44

47

MflTT^flttim

0

0

33

968

2 f 850

5,500

5,730

5,050

156

54

3

.8

5,730

June

50

54

54

53

49

44

41

35

31

27

26

27

25

25

27

24

23

20

16

14

18

18

16

12

12

12

10

8.5

9

9

-

July

8.5

8.5

7

7.5

14

9.5

6

7

7

6

5.5

5.5

5

4.9

4.7

4.7

4.5

17

25

25

24

23

23

23

22

£1

20

8

3.4

1.9

1.3

Minimum

0

0

0

0

16

184

126

146

44

8 5

i!s o' o

0

Aug.

1.2

1.9

2.0

2.0

1.9

1.8

1.7

1.6

3.0

1.5

1.3

1.3

1.2

.7

.2

.2

.9

1.1

l!2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.0

.7

.6

Mean

0

0

13.8

39.3

754

948

953

670

82 .5

26.3

11.4

1.27

.43

286

Sept.

0.8

.3

.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

-

Run-off in 

acre-feet

0

0

847

28,450

46,390

54,510

58,610

39 9 &QO

5,080

1,570

701

78

2.6

207,700

Peak dlacharge.- Jan. 4 (11 p.m.) 780 sec.-ft.; Feb. 15 (1 to 3 a.m.) 915 sec.-ft.; Mar. 

(1 p.m.) 2,600 sec.-ft.; Mar. 31 (11:30 a.m.) 5,990 sec.-ft.

9-238 February 1936

UHITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
CALAVERAS RIVER BASIN 227

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.

Drainage area.- 20.6 square miles.

Records available.- October 1929 to September 1940.

Average discharge.- 11 years, 7.86 second-feet.

Extremes.- Maximum discharge during year, 1,330 second-feet Mar. 31 (gage height, 6.04 

reetj; no flow for. several months.

1929-40: Maximum discharge, 2,600 second-feet Feb. 22, 1936 (gage height, 7.80 

feet), from rating curve extended above 1,000 second-feet on basis of velocity-area 

studies; no flow for several months 'each year.

Remarks.- Records good. No diversions above station.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet)

1.9 6.0

2.0

2.1

2.2

2.3

0 

.2

.6 

1.5 

3.3

2.4

2.5

2.6 

2.S 

3.0

3.2 

3.5 

3.8 

4.2 

4.6

85

142

215

338

510

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

ie

17

18

IB

20

81

22

23

24

25

26

27

28

29

30

31

Oct. HOT. Dec. Jan.

0

.3

.3

16

2.4

9.5

36

94

174

175

124

57

18

11

7

5.5

4.4

3.8

3.1

2.8

2.4

2.2

2.0

1.9

224

139

32

14

10

8

8.5

Feb.

11

8

47

18

12

23

16

9

7

5.5

4.6

3.8

3.6

94

24

11

62

30

12

9

7,5

7.5

153

46

115

129

378

164

128

..

-

Month

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

Jan 

Fet

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

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

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

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

Water year 1939-4

Mar.

36

22

14

11

9

7.5

6

5.5

4.6

4.1

3.8

3.3

2.9

2.8

2.6

2.6

2.4

2.2

2.0

1.9

1.9

1.9

1.7

1.9

4.1

58

75

22

30

335

34S

Apr.

39

ie

13

16

9.5

8

7

6

5.5

4.9

4.4

3.8

3.6

3.3

2.9

2.8

2.4

2.2

2.2

2.0

1.9

1.5

1.5

1.4

1.5

2.4

2.6

2.0

1.7

1.4

Secondfoot-days

0

0

0

483.1

1,188.1 

1,538.5

1.0S5.7

174 2

g!s

.2

0

0

0

3,936.2

May

1.2

1.0

.9

.8

.7

.6

.6

.5

.4

.4

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

.1

Maximum

0

0

0

63

224 

378

348

39

1.2

.1

0

0

0

378

June

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-

July

Minimum

0

0

0

0

0 

3.6

1.7

1.4

0

0

0

0

0

0

Aug.

Mean

0

0

0

1.32

38.3 

53.1

33 .1

5. 81

 31

.01

0

0

0

10.8

Sept.

Run-off In 

acre-feet

0

0

0

959

2,360 

3,050

2,030

346

19

.4

0

0

0

7,810

ik discharge.- Jan. 10 (5 p.m.) 506 sec.-ft.; Jan. 25 (8 p.m.) 888 sec.-ft.; Feb. 27 (4 a.m.) 

sec.-ft.; Feb. 28 (9:30 a.m.) 640 sec.-ft.; Mar. 26 (lO»30 p.m.) 447 sec.-ft.; Mar. 31 (1:30 

I 1,330 sec.-ft.

Pea 

a.m.) 1,330 sec.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
228 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 1940.

Extremes.- Maximum contents observed during year, 130,800 acre-feet June 1 (elevation, 

3,y4«.3 feet); minimum observed, 32,500 acre-feet Jan. 1 (elevation, 3,813.4 feet).

1931-40: Maximum contents, 130,800 acre-feet June 25, 1938, and June 1, 1940 

(elevation, 3,948.3 feet); no contents Jan. 30 to Feb. 5, Feb. 18-26, 1932, Mar. 1-25, 

J.9oo.

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 (srest 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. Figures given herein show contents available, at 3 p.m., for release through power plant Intake.

Cooperation.- Record of contents furnished by Pacific Gas & Electric Co. In connection 

witn a Federal Power Commission project.

Contents, in acre-feet, water year October 1939 to September 1940

D«y

1

2

S

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

50

SI

Oct.

36,000

86,100

86,000

85,600

86,300

85,000

84,800

84,500

84,000

83,500

83,100

82,600

82,300

81,700

31,200

80,700

80,200

79,600

79,100

78,500

78,000

77,700

77,100

76,700

76,200

75,600

75,400 

74,900

74,300

73,900

73,500

Hov.

73,000

72,500

72,100

71, 500

70,900

70,300

69,800

69,200

68,700

68,100

67,500

67,000

66,400

65,800

65,200

64,700

64,000

63,500

62 , 800

62,300

61,700

61,000

60,400

59,800

59,200

58,600

53,100 

57,400

56,900

56,300

"

Dec.

55,700

55,000

54,500

53,900

53,300

53,500

52,000

51,000

50,?00

49,300

48,700

47,900

47,200

46,300

45,500

44 , 600

43,700

42,300

41,900

41,100

40 , 200

39,300

38,500

37,600

36,900

36,000

35,200 

34,300

33,500

33,000

32,600

Jan.

32,500

33,900

36,200

37,300

37,300

37,900

38,200

38,900

39,900

40,800

42,300

44,100

44,800

45,200

45,500

45,600

45,800

45,900

45,900

45,900

45,300

45,800

45,800

45,800

45,900

48,100

50,100 

51,000

51,300

53,300

52,800

Feb.

53,300

53,300

54,300

55,200

55,800

56,500

57,200

57,800

58,100

58,600

59,000

59,300

59,500

59,600

59,300

59 , 000

58,800

59,000

59,000

58,600

58,400

53,200

58,500

58,900

59,400

59,700

61,600 

63,500

64,600

-

-

Mar.

65,000

65,600

66,300

66,300

67,300

68,000

68,700

69,600

70,600

71,400

71,300

71,700

71,400

70,700

70,300

69,700

69,300

68,900

69 , 000

69,500

70,100

70,900

-71,900

73,200

75,300

77,500

83,000 

84,300

84,000

84,800

86,000

Apr.

86,900

84,900

83,900

83,400

83,100

83,000

83,000

83,100

83,200

83,600

84,300

35,200

86,700

39,000

90,600

92 , 000

92,500

93,500

93,700

97,400

99,200

98,700

99,600

100,600

100,300

100,200

99,500 

99,100

93,700

99,200

-

May

100,400

103,900

108,200

11-1,400

111,300

110,700

111,400

113,000

114,700

116,300

113,000

119,900

120,800

120,100

120,100

120,200

120,900

121 , 000

121,000

121,400

123,500

126,400

128,200

129,800

130,200

130,100

130,100 

130,300

130,500

130,400

130,500

June

130,800

130,500

130,300

130,400

130,500

130,500

130,500

130,500

130,500

130,500

130,500

130, 500

130,400

130,400

130,400

130,200

130,200

130,100

129,900

129,600

129,700

129,600

129,400

129,300

129,100

123,700

128,300 

123,000

127,500

127,000

-

July

126,300

126,100

125,500

124,600

124,000

123,300

122,500

121,600

120,700

119,700

119,300

119,000

113,900

118,800

119,100

119,200

119,300

119,400

119,300

119,100

118,900

118,800

118,300

117,700

117,100

116,400

115,700 

115,000

114,300

113,400

112,600

Aug.

111,700

110,900

110,500

109,300

109,400

103,400

107,400

106,400

105,300

104,400

103,700

102,900

101,800

100,700

99 , 700

98,600

97,500

97,200

96,700

95,600

94,400

93,400

92,300

91,200

90,200

89,600

38,600 

87,500

86,400

85,300

84,500

Sept.

84,200

83,900

83,800

82,100

81,000

79,900

78,900

77,800

76,800

75,700

74,600

73,500

72,500

71,400

70,300

69,400

68,400

67,300

66,300

65,200

64,200

63,800

62,900

61,900

60,800

59,700

58,600 

57,800

56,900

55,800

Monthly elevation and contents, water year October 1939 to September 1940

Date

Dec. 31..... ...............

Elevation 

(feet)

3 879 9

3,813.6

-

3 849 8

-

Contents 

(acre-feet)

32,600

-

-

Change in contents 

during month 

(acre-feet)

 12 900

-23,700

+14,600

+20 200

-30,600
MOKELUMNE RIVER BASIN 229

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. 

16 E., 0.3 mile downstream from Salt Springs Dam and 1.7 miles upstream from Cold 

Creek. Altitude of gage, about 3,600 feet.

Drainage area.- 160 square miles.

Records available.- September 1926 to September 1940.

Average d 1 scharge.- 13 years 0-927-40) 403 second-feet, combined flow of North Fork of 

MOKeiumne River and Tiger Creek powerhouse conduit.

Extremes.- Maximum discharge during year, 3,160 second-feet May 13 (gage height, 7.5 

reet); minimum, 1.3 second-feet Dec. 22-31.

1926-40: Maximum discharge, 8,740 second-feet Mar. 25, 1928 (gage height, 13.62 

feet), 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 (p. 228), and diversion 

in Tiger Creek powerhouse conduit (p. 234).

Cooperation.- Water-stage recorder graph and results of three discharge measurements 

furnished by Pacific Gas & Electric Co. In connection with a Federal Power Commission 

project.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

0.2 !

.4 ;

.6 E

0.9 

2.7

0 13 .8 68 

Discharge, in second-feet,

1.0 

1.2 

1.6 

2.0

116

184

280

2.4 

2.8 

3.2 

3.6

400

536

690

860

4.0 

4.5 

5.5 

6.5

1,040

1,280

1,800

2,450

ater year October 1939 to September 1940

Day

1

2

3

4

S

6

7

S

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

8

S.5

7.5

7

7

7.5

7.5

7

7

7

7

7

6.5

7

6.5

6.5

6.5

6.5

6.5

6

6

6

6

6

6

6

5.5

5.5

5.5

6

6

Her.

6

5.5

5

5

5

5

5

5

5

5

4.8

4.8

4.8

4.8

4.8

4.5

4.5

4.3

4.1

4.1

4.1

4.0

4.0

3.8

4.1

3 8

3.4

2.3

2.2

2.5

Dec.

2.0

2.0

2.0

2.0

2.0

1.9

1.9

1.7

1.7

2.0

2.0

1.9

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.5

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

Jan.

1.4

3.2

2.3

6

3.4

2.7

6

11

12

11

9.5

7.5

4.8

4.3

4-0

3.4

3.1

2.7

2.5

2.3

2.3

2.3

2.2

2.0

4.1

8

5.5

4.3

4.1

4.0

3.4

Feb.

3.2

3.1

4.1

5

5

5

5

4.3

4.0

3.8

3.6

3.6

3.8

133

176

174

174

4.1

168

129

167

38

296

279

104

254

163

180

291

_

-

Month

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

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

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

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

Water year 1939-40......................

Mar.

271

34

19

133

6

5

5

4.8

4.3

4.1

251

390

473

558

558

561

561

366

198

167

185

173

156

189

192

200

288

834

1,250

1,340

995

Apr.

1,120

1,360

918

618

654

511

514

536

543

529

580

583

511

507

568

558

561

565

572

466

1,140

1,620

1,150

1,030

1,030

851

587

507

237

60

-

Seoondfoot-days

204.5

131.2

50.4

2,666.8

145.3

2,783.6

10, 371. 2

45)586

19,104 289 * 0

93!l

99,948.1

Hay

65

68

71

424

1,000

S94

561

723

1,410

2,090

2,240

2,420

2,380

2,380

1,980

2,100

2,070

2,080

2,080

1,680

1,180

1,040

1,740

1,660

2,170

1,300

1,580

1,540

1,530

1,300

1,330

MmHTniim

8.5

6

2.0

170

12

296

1,340

1,620

2,420

1, 730

12

8

4.8

£,4EO

June

1,730

1,380

1,200

1,260

1,160

1,280

1,220

1,080

910

932

972

882

838

815

722

610

630

493

341

206

188

123

51

12

11

11

11

11

12

13

July

10

10

10

10

10

12

12

10

9.5

9

9

9

9.5

10

9

9

9

9

9

9

9

9

9

9

9

9

8.5

8.5

8

8

8

Minimum

5.5

2.2

1.3

.6

1.4

3.1

4.1

60

65

11

8

4.8

1.9

1.3

Aug.

8

8

8

8

7.5

7.5

7.5

7.5

7.5

7.5

7.5

7

7

7

7

7

6.5

6.5

6

6

6

6

6

6

5.5

5

5

5

5

5

4.8

Mean

6.60

4.37

1.63

7.31

4.69

96.0

335

700

1,471

637

9 .32

6.57

3.10

273

Sept.

4.8

4.5

4.3

4.3

4.1

4.1

4.0

4 .0

4.0

3.6

3.4

3.2

3.2

3.1

3.1

3.1

2.9

2.7

2.5

2.5

2.3

2.3

2.3

2.3

2.2

2.2

2.1

2.1

2.0

1.9

-

Run-off in 

ao re-feet

406

260

100

5,290

288

5,520

20,570

41,630

90 420

 ' f,QQ '573

404

185

198,200

9-232 February 1956

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
230 MOKELUMNE RIVER BASIN

Mokelumne River near Mokelumne Hill, Calif.

Location.- Water-stage recorder, lat. 38°18'40", long. 120°43'10lt ,. in sec. 1, T. 5 N., R. 

11 B., 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.

Drainage area.- 538 square miles.

Records available.- November 1927 to September 1940.

Average discharge.- 12 years (1928-40), 805 second-feet.

Extremes.- Maximum discharge during year, 13,000 second-feet Mar. 31 (gage height, 12.50 

feet); minimum, 63 second-feet Aug. 1.3 (gage height, 1.50 feet).

1927-40: Maximum discharge, 23,300 second-feet Mar. 25, 1928 (gage height, 1-6.10 

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 Reservoir, several smaller reservoirs, three 

power plants, and several diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

227

218

319

359

340

314

378

303

355

390

355

362

3S8

321

218

310

496

332

296

343

233

227

234

321

386

343

355

343

194

343

382

HOT.

328

336

370

307

252

315

347

326

351

343

359

206

289

351

398

336

336

312

321

406

359

359

268

362

382

317

366

374

406

355

-

Dec.

347

351

281

351

349

501

3S6

456

483

515

596

596

565

570

544

580

435

530

554

554

506

530

534

492

4S3

492

501

534

580

549

452

Jan.

321

616

1,300

1,050

696

611

423

1,230

1,820

1,360

1,S10

2,040

990

783

623

618

607

650

634

5S6

461

560

575

539

864

2,620

2,060

1,150

1,090

939

867

Feb.

S61

837

95S

1,080

1,160

1,130

1,240

1,140

a983

a878

a637

a690

a822

971

984

933

97S

867

701

S97

1,020

771

1,670

2,050

1,350

1,520

5,290

5,470

4,670

_

-

Month

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

Calendar year 1939 ......................

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

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

Mav. .... . . . . ...

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

Water year 1939-4 0......................

Mar.

3,030

2,310

1,740

1,920

1,540

1,290

1,130

1,090

1,010

1,030

990

1,220

1,150

1,260

1,200

1,320

1,240

1,180

997

885.

854

903

964

861

1,250

3,190

6,210

3,330

4,090

7,990

8,750

Apr.

5,190

4,560

3,630

3,030

2,600

2,160

2,040

2,040

1,960

1,9SO

2,100

2,110

2,160

2,220

2,310

1,860

1,690

1,860

2,050

2,010

2,240

3,640

3,310

3,160

3,010

2,580

2,200

1.S40

1,740

1,440

Seoondf cot-days

9,925

10,137

15,207

149,064

30,493

42,558

65,924

100*320

44,654

17,482

15,342 

14,942

441,704

May

1,670

2,370

2,490

2,250

2,440

2,500

2,140

2,310

3,080

3,700

4,130

4,100

4,560

4,740

4,180

4,080

3,810

3,810

3,630

3,510

3,210

2,730

3,470

3,550

3,900

3,550

3,130

3,080

3,000

2,720

2,4SO

Maximum

496

406

596

1,230

2,620

5,470

8,750

5,190

4,740 

3,200

725

649 

605

8,750

June

3,200

2,740

2,380

2,450

2,280

2,410

2,380

2,110

1,840

1,820

1,920

1,830

1,670

1,620

1,520

1,300

1,350

1,280

1,130

914

793

751

590

710

644

627

627

638

595

535

July

491

545

585

486

550

565

8480

a620

a725

a600

595

580

535

500

600

610

660

590

575

555

402

545

535

600

5SO

605

590

463

580

575

560

1H rH mum

194

206

281

74

321

637

854

1,440

1,670 

535

402

208 

186

186

Aug.

590

585

486

286

283

464

595

649

580

427

343

359

600

580

560

555

550

327

208

523

580

560

seo

585

520

330

505

565

560

540

467

Mean

320

33 S

491

40S

984

1,468

2 127

2)491

3,236

1,488 

564

495

498

1,207

Sept.

308

186

253

5TO

555

555

560

555

545

550

550

570

560

560

477

472

565

555

555

586

530

350

290

605

560

545

555

423

463

535

Run-off in 

acre-feet

19,690

20,110

30,160

295,700

60,480

84,410 

130,800

148,200

199,000

88,570

34.680

30,430 

29,640

876,200

Peak discharge.- Jan. 26 (9:30 p.m.) 3,380 sec.-ft.; Feb. 23 (11 p.m.) 3,100 sec.-ft.; Feb. 27 

(10.-30 p.m.) 7,340 sec.-ft.j Mar. 27 (2 a.m.) 11,100 sec.-ft.; Mar. 31 (2 a.m.) 13,000 sec.-ft.; 

Hay 14 (2 a.m.) 5,300 sec.-ft.

a No gage-height record; discharge computed on basis of records for Pardee Reservoir.

^-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
MOKELUMNE RIVER BASIN 

Mokelumne River at Lancha Plana, Calif.

231

Location.- Water-stage recorder, lat. 38°13'2511 , long. I20°53'20't , in SWi sec. 4, T. 4 

N., R. 10 E., 1 mile east of Lancha Plana, 3 miles downstream from Pardee Dam, and 5 

miles upstream from Camanche Creek. Datum of gage is 158.95 feet above mean sea level 

(bench mark of East Bay Municipal Utility District).

Drainage area.- 584 square miles.

Records available.- June 1926 to September 1940.

Average discharge.- 11 years (1929-40, since start of East Bay aqueduct diversion), 766 

second-reet.

Extremes.- Maximum discharge during year, 5,270 second-feet Mar. 30 (gage height, 8.57 

feet;; minimum, 39 second-feet (regulated) Dec. 11.

1926-40: 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 1939 to September 1940

Day

1

Si

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

S3.

82

83

84

85

86

27

88

29

30

31

Oct.

177

420

423

576

434

42S

427

182

412

459

576

432

371

349

153

381

374

368

369

367

366

191

366

402

421

427

420

429

169

373

270

HOT.

427

452

576

576

376

481

571

571

571

571

567

567

346

562

562

567

494

51

63

307

295

301

62

127

56

52

484

562

442

383

-

Dec.

247

227

4S

224

222

22S

221

222

82

45

212

254

2S4

254

218

223

48

224

229

231

335

207

232

46

45

328

210

224

118

43

121

Jan.

4S

235

236

250

380

185

141

338

263

256

405

43S

387

481

494

599

608

60S

608

608

458

491

608

608

608

413

54

120

386

242

276

Feb.

410

628

633

628

623

623

628

628

628

628

62S

628

633

658

638

628

674

648

638

638

638

638

648

643

684

700

777

721

700

_

-

Month

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

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

 tar.......................................

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

Water year 1939-4

Mar.

819

1,160

1,670

1,790

1,770

1,760

1,760

1,760

1,670

1,270

1,160

1,160

1,040

843

837

849

861

849

843

855

754

648

658

668

658

684

846

1,520

2,470

4,590

4,840

Apr.

5,060

5,050

5,040

4,770

4,110

3,020

2,180

1,960

1,980

1,970

1,930

2,170

2,450

2,460

2,450

2,440

2,100

1,820

1,850

2,200

2,090

2,610

3,690

3,490

3,290

3,050

2,140

1,870

1,590

1,410

Seoondfoot-days

11,512

12,022

5,852

173,445

11,712

18,617

43,062

82 340

85 , 812

42, 387

15J939

16,260

361,132

Hay

1,410

2,170

2,510

2,310

2,120

1,720

640

832

1,520

2,690

3,120

3,340

3,390

4,040

3,550

3,230

3,240

3,570

3,450

3,670

3,330

2,520

2,960

3,810

3,660

3,380

3,010

2,820

2,790

2,770

2,240

HaxlnunL

576

576

335

671

608

777

4,840

5,060

4,040

*620

630

645

5,060

June

2,970

2,920

2,440

2,140

2,130

2,420

2,240

2,110

1,920

1,640

1,720

1,780

1,700

1,620

1,560

1,280

1,080

1,320

1,100

774

670

686

611

457

575

563

534

536

510

381

-

July

534

550

620

331

511

532

345

518

620

62Q

620

620

620

334

502

499

493

496

504

455

317

532

532

528

519

532

528

375

523

503

504

IHn^Tfliiro

153

51

43

43

48

410

648

1,410

640

381

321

355

43

Aug.

530

518

520

331

520

630

630

630

630

611

321

488

525

520

517

517

478

324

529

535

559

545

538

530

368

525

527

524

529

518

490

Mean

371

401

189

475

378

642

1,389

2,741

2,768

1,413

507

514

542

987

Sept.

382

393

530

640

640

640

640

355

496

606

630

592

587

554

372

530

564

564

563

630

645

416

544

555

541

556

557

543

466

529

-

Run-off In

acre-feet

22,830

23,850

11,610

344,000

23,230

36,930

85,410

163,100

170,200

84,070

31, 170

31,610

32,250

716,300

9-838 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
232 MOKELUMNE RIVER BASIN 

Mokelumne River near Clements, Calif.

Location.- Water-stage recorder, lat. 38°12'25", long. 121°05'20", In NWi seo. 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. Altitude of gage, about 80 feet.

Drainage area.- 630 square miles.

Records available.- October 1904 to September 1940.

Average discharge.- 24 years (1904-28), 1,110 second-feet; 11 years (1929-40, since start 

of East Bay aqueduct diversion), 772 second-feet.

Extremes.- Maximum discharge during year, 6,760 second-feet Mar. 31 (gage height, 12.82 

feet); minimum, 41 second-feet Dec. 11.

1904-40: Maximum discharge, 25,600 second-feet Mar. 25, 1928 (gage height, 22.45 

feet at site and datum then In use), from rating curve extended above 4,600 secondfeet and verified by comparison with records for Mokelumne River at Lancha Plana; no 

flow July 9, Aug. 15, 20-23, 1924.

Remarks.- Records excellent except those for period of no gage-height record, which are 

good. Diversions and storage above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

?.

3

4

S

6

7

8

9

10

11

1?.

IS

14

15

in

17in

19

20

21

22

83

24

25

86

27

2R

29

SO

51

Oct.

268

296

427

574

443

423

429

308

284

378

567

429

404

362

228

269

368

375

357

355

358

236

315

359

408

425

413

418

285

290

264

HOT.

379

442

563

567

456

383

563

563

563

567

567

570

437

484

567

563

567

171

66

158

318

287

227

69

135

63

331

563

531

359

Dec.

249

226

185

95

215

221

223

214

186

83

82

244

284

285

215

225

181

105

224

226

318

231

232

184

57

190

237

a214

a!79

a!28

a57

Jan.

al38

a98

a259

276

342

253

211

354

604

406

482

488

404

423

484

604

620

616

620

616

458

492

612

612

698

639

265

86

272

277

276

Feb.

372

627

719

654

646

670

658

646

642

642

639

639

662

870

674

650

826

715

674

658

654

654

690

674

955

965

1.630

1,070

950

_

-

Month

Calendar year 1939 ......................

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

Mav.. ..

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

Water year 1939-4

Mar.

846

1,090

,630

,790

,790

,780

,780

,780

1,760

1,380

1,210

1,200

1,150

870

860

865

870

865

860

865

807

666

666

690

682

732

866

1,460

2,150

4,750

5,700

Apr.

4,980

5,200

5,180

5,000

4,400

3,260

2,330

2,050

2,030

2,030

1,990

2,120

2,470

2,480

2,470

2,470

2,270

1,920

1,890

2,170

2,240

2,390

3,560

3,630

3,330

3,240

2,280

1,970

1,750

1,610

-

Secondfoot-days

12,079

5,995

173,594

84,660

43,579

16,119

370,130

Hay

1,440

2,010

2,520

2,430

2,160

2,060

700

806

1,260

2,590

3,020

3,330

3,330

3,910

3,790

3,190

3,300

3,420

3,480

3,630

3,400

2,780

2,630

3,890

3,490

3,530

3,060

2,830

2,760

2,800

2,390

Itq-ftHlllMlM

570

318

812

5,200 

3,910

3,020

644

5,700

June

2,780

3,020

2,480

2,250

2,130

2,350

2,370

2,160

2,020

1,730

1,740

1,820

1,770

1,680

1,640

1,410

1,090

1,370

1,200

880

692

720

672

458

570

581

547

632

513

404

-

July

501

558

628

415

434

532

416

457

628

632

628

632

632

426

437

505

493

500

516

495

339

449

528

532

532

516

535

414

497

506

503

IHri^imim

63

57

57

1,510 

700

404

 Z-ZQ

381

354

57

Aug.

509

505

513

412

445

632

632

628

628

628

389

426

482

505

505

497

446

381

442

532

562

554

528

520

399

476

513

513

505

516

490

Mean

365

403

193

476

2,822

1,463

537

1,011

Sept.

390

354

490

632

636

636

636

409

429

608

628

596

586

570

404

486

573

554

551

628

644

437

509

554

547

S47

551

639

480

516

~

Run-off In 

acre-feet

22,440

23,960

11,890

344,300

42,690

167,900 

170,500

86,440

31,970

734,200

a No gage-height record; discharge computed on basis of records for station at Lancha Plana.

9-E32 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeologlcal Surrey
MOKELUMNE RIVER BASIN 333

Mokelumne River at Woodbridge, Calif.

Location.- Water-stage recorder, lat. 38°09'30n , long. 121°18'10", In NEi sec. 34, T. 4 

N., K. 6 E., at Woodbrldge, three-eighths of a mile downstream from dam of Woodbrldge 

Irrigation District. Altitude of gage, about 30 feet.

Drainage area.- 644 square miles.

Records available.- May 1924 to September 1940 (for 1924 and 1925, low-water records only).

Average discharge.- 13 years (1926-27, 1928-40), 637 second-feet.

Extremes.- Maximum discharge during year, 5,100 second-feet Apr. 4 (gage height, 22.32 

reet); minimum, 22 second-feet Dec. 11.

1924-40: Maximum gage height, 26.58 feet, former datum, about 30.6 feet, present 

datum, Mar. 26, 1928 (discharge not determined); minimum discharge, 0.9 second-foot 

Sept. 3, 1924.

Remarks.- Records excellent. Flow regulated by storage, power plants, and many diversions 

above station.

Discharge, in second-feat, water Tear October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

IS 

14

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

SI

Oct.

301 

97 

171 

256 

346

283 

282 

278 

114 

202

291 

375 

286 

248 

218

69 

141 

195 

203 

221

228 

232 

109 

202 

251

277 

286 

304 

304 

136 

192

lov.

167 

267 

346 

468 

490

298 

357 

402 

434 

486

464 

468 

464 

205 

518

951 

642 

468 

177 

115

246 

297 

296 

158 

126

118 

84 

411 

523 

413

Dec.

372 

261 

236 

135 

169

213 

220 

220 

217 

138

58 

30 

113 

228 

234

390 

252 

196 

181 

216

222 

308 

229 

226 

123

74 

229 

216 

219 

149 

101

Jan.

92 

110 

177 

253 

276

363 

232 

220 

478 

485

438 

513 

474 

404 

442

531 

597 

612 

614 

617

579 

470 

537 

614 

634

698 

566 

208 

157 

311 

277

Feb.

300 

467 

643 

689 

645

650 

674 

652 

647 

647

647 

645 

647 

782 

736

672 

698 

816 

694 

672

665 

665 

678 

694

734

950 

1,290 

1,190 

1,050

Month

Dot 

Hov 

Dec

C

Jan 

Fet 

Mar 

Apr 

May 

Jim 

Jul 

£6 

Sep

11

uary

ater year 1939-4

Mar.

864 

926 

1,220 

1,540 

1,620

1,630 

1,640 

1,640 

1,650 

1,550

1,260 

1,190 

1,170 

1,020 

903

886 

881 

879 

872 

862

862 

746 

693 

700 

700

693 

750 

1,020 

1,460 

2,120 

3,650

Apr.

4,890 

4,880 

5,060 

5,100 

4,970

4,540 

3,590 

2.6TLO 

2,170 

2,060

2,000 

1,950 

2,110 

2,320 

2,380

2,250 

2,050 

2,050 

1,780 

1,720

1,960 

1,940 

2,180 

3,100 

3,370

3,280 

3,090 

2,330 

1,920 

1,540

Seoondfoot-days

7,098 

10,859 

6,175

111,955

12,979 

20,939 

37,597 

85,190 

76,254 

33,658 

4,989 

5,434 

8,845

310,017

May

1,400 

1,270 

1,780 

2,100 

2,120

1,950 

1,440 

654 

750 

1,350

1,930 

2,520 

2,870 

2,970 

3,470

3,500 

2,970 

2,980 

3,200 

3,240

3,320 

3,190 

2,460 

2,490 

3,420

3,370 

3,300 

2,820 

2,460 

2,460 

2,500

Mn-rfimm.

375 

951 

390

951

698 

1,290 

3,650 

5,100 

3,500 

2,640 

609 

258 

380

5,100

June

2,190 

2,3SO 

2,640 

2,190 

1,880

1,770 

1,910 

1,890 

1,740 

1,540

1,350 

1,340 

1,330 

1,270 

1,170

1,100 

885 

815 

885 

729

393 

358 

356 

278 

205

234 

235 

210 

197 

188

July

609 

51 

138 

255 

74

100 

162 

72 

94 

195

221 

233 

287 

233

74

100 

153 

144 

136 

140

141 

66 

144 

163 

160

146 

153 

201 

88 

108 

148

Minimum

69 

84 

30

24

92 

300 

693 

1,540 

654 

188 

51 

71 

121

30

Aug.

137 

167 

194 

172 

71

155 

258 

254 

246 

244

221 

75 

84 

113 

140

149 

158 

142 

74 

108

180 

230 

221 

218 

208

127 

243 

230 

209 

203 

203

Mean

229 

362 

199

307

419 

722 

1,213 

2,840 

2,460 

1,122 

161 

175 

295

847

Sept.

221 

121 

152 

305 

346

351 

344 

336 

164 

220

310 

318 

322 

356 

358

203 

286 

320 

324 

349

380 

370 

214 

305 

312

318 

32S 

337 

322 

256

Run-off In

acre-feet

14,080 

21,540 

12,250

222,100

25,740 

41,530 

74,570 

169,000 

151,200 

66,760 

9,900 

10,780 

17,540

614,900
234 MOKELUMNE RIVER BASIN

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°30', long. 1200 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 1940.

Extremes.- Maximum dally discharge during year, 552 second-feet Sept. 29; no 'flow Apr.

1931-40: Maximum daily discharge, 558 second-feet July 11, 1938; no flow at times 

in each year.

Remarks.- Records good. Conduit conveys water of North Fork of Mokelumne River from tailrace of Salt Springs powerhouse to forebay of Tiger Creek powerhouse, picking up water 

from Bear River and several small creeks en route.

Cooperation.- Water-stage recorder graph and results of four discharge measurements furnlshed by Pacific Gas & Electric Co. in connection with a Federal Power Commission , 

project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

e

3

4

S

6

1

S

9

10

11

12

IS

14

16

16

IV

IS

19

20

Si

22

83

84

85

86

27

88

29

30

31

Oct.

0.1

290

261

259

286

283

293

291

296

302

304

303

303

303

302

302

301

303

299

301

300

180

2SO

294

297

231

282

299

291

296

300

HOT.

300

301

302

302

301

303

304

303

304

304

304

302

306

304

305

304

305

305

306

314

318

317

315

315

311

308

310

316

310

309

Dee.

313

a313

a313

315

313

311

422

494

496

490

465

471

485

486

488

490

490

486

481

457

455

457

455

433

457

451

447

443

434

352

280

Jan.

88

59

107

US

252

133

122

143

91

95

22

12

109

.2

149

151

170

169

17S

184

190

188

198

185

112

.3

.2

.2

63

86

99

Feb.

99

103

58

.3

89

38

44

96

115

.2

.2

157

143

145

171

173

163

34

195

226

183

184

67

90

18

46

1.9

1.9

2.5

-

Month

Karob .....................................

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

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

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

Water year 1939-40. .....................

Mar.

2.3

.7

.7

2.3

.3

.2

.2

.2

.2

.2

1.9

2.5

2.5

2.3

2.3

2.1

2.1

75

52

3.8

3.5

3.5

3.2

3.2

3.2

3.2

3.2

3.0

.5

.7

.7

Apr.

0.9

2.1

1.9

1.9

1.9

.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

218

451

352

537

536

534

536

536

536

536

-

Seoondfoot-days

8,632.1

9,208

13,243

80,956.6

3,473.9

2,644.0

181.7

4,781.6

12,527.5

13,758

16,019

14,739

14,840

114,047.8

Hay

536

537

537

513

506

526

534

536

225

4.8

4.5

1.2

245

53S

538

366

412

305

309

371

447

450

454

454

455

454

453

454

454

454

454

Mmrtimim

304

318

496

552

252

226

75

537

537

489

532

546

552

552

June

454

454

453

454

453

453

455

457

460

461

461

461

464

462

464

465

464

462

460

451

444

451

46S

479

482

486

489

486

479

326

-

July

502

486

510

513

513

512

510

513

518

518

514

467

520

522

522

522

522

522

522

523

523

524

526

526

529

532

532

492

528

526

530

Minimum

0.1

300

280

0

.2

.2

.2

0

1.2

326

467

65

110

0

Aug.

529

467

357

236

466

538

536

538

538

458

336

492

541

541

542

542

452

65

502

546

544

£44

544

544

336

483

538

544

546

451

443

Mean

278

307

427

222

112

91.2

5.86

159

404

459

517

475

495

312

Sept.

110

173

484

548

550

548

548

546

546

546

548

548

548

550

492

544

540

544

550

550

4S7

183

504

550

548

548

550

361

552

544

-

Rim-off in 

acre-feet

17,120

18,260

26,270

160,600

6,890

5,240

360

9,480

24,850

27,290

31,770

29,230

29,430

226,200

a No gage-height record) 

Electric Co.

discharge computed on basis of unpublished records of the Pacific Gas &

9-232 February 1936

TOUTED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
MOKELUMNE RIVER BASIN 

Cold Creek near Mokelumne Peak, Calif.

235

Location.- Water-stage recorder, lat. 38°31', long. 120°13', In sec. 28, T. 8 N., R. 16 

E., 2.4 miles upstream from mouth and 6 miles southwest of Mokelumne Peak. Altitude 

of gage, about 6,000 feet (from topographic map).

Drainage area.- 23 square miles.

Records available.- July 1927 to September 1940.

Average discharge.- 13 years, 55.0 second-feet.

Extremes.- Maximum discharge during year, 1,570 second-feet Mar. 26 (gage height, 6.01 

feet); minimum recorded, 0.2 second-foot Aug. 31, probably lower in September.

1927-40: Maximum discharge, 4,100 second-feet Dec. 11, 1937 (gage height, 8.98 

feet), from rating curve extended above 1,000 second-feet on basis of velocity-area 

and Al/d~studies; practically no flow Aug. 17 to Oct. 7, 1931.

Remarks.- Records good except those for periods of ice effect or doubtful gage-height 

record, which are fair.

Cooperation.- Water-stage recorder graph and results of three discharge measurements 

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, In second-feet, water year October 1959 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

1112

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.7

12

12

11

1O

16

17

13

8

5

3.8

3.8

3.4

2.8

2.2

1.7

1.3

1.0

.8

.6

.6

.5

.5

.6

1.4

4.5

8.5

18

13

9

6

HOT.

4.2

3.4

2.8

2.2

1.8

1.6

1.4

1.1

1.0

1.0

.9

.8

.7

.6

.6

.6

.6

.5

.5

.5

.5 .

.5

.5

.5

.6

2.0

b3

b2

b2

b2

-

Dec.

b2

b2

b2

b2.5

b2.5

6

8.5

6

6

8.5

36

16

10

8

7

6.5

6

6.5

6

5.5

b4

b3

b3.5

b2.5

b2

b2.5

b2

b2

b!5

20

17

Jan.

31

540

107

87

51

39

34

39

38

44

167

108

64

52

51

53

55

46

38

32

31

30

26

23

45

269

144

87

72

61

57

Feb.

57

52

51

49

45

66

54

44

40

44

43

38

35

37

38

34

33

b30

b30

b30

b30

31

56

54

49

58

61

88

63

_

-

Month

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

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

Mav ......

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

Water year 1939-40. .....................

liar.

51

51

47

44

51

56

76

95

90

71

55

48

44

48

59

61

69

74

79

107

128

159

180

196

385

733

510

178

217

312

162

Apr.

119

100

91

83

77

85

106

102

125

166

202

254

311

311

226

151

175

258

294

286

328

365

346

294

218

143

122

116

114

152

-

Seoondfoot-days

188.7

40.4

227

11,113.2

2,521

1,340

4,436

5,720

10,149

2,861

77.8

11.0

6

27,577.9

May

308

501

384

284

176

178

229

340

416

450

478

450

403

371

358

358

334

331

300

352

384

352

355

365

294

249

251

244

222

176

256

K&jdjmini

18

4.2

36

233

540

88

733

365

501

249

8.5

.5

733

June

249

176

182

167

173

190

175

162

149

154

145

132

121

112

89

79

70

58

48

39

39

30

24

22

18

14

12

11

11

10

-

July

8.5

7.5

7

6

5.5

4.4

4

3.6

3.1

2.7

2.4

2.1

1.9

1.8

1.6

1.5

1.5

1.4

1.3

1.2

1.1

] .0

1.0

.9

.8

.7

.7

.7

.7

.6

.6

Minimum

0.5

.5

2

.1

23

30

44

77

176

10

.6

.2

.2

Aug.

0.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

Mean

6.09

1.35

7.32

30.4

81.3

46.2

143

191

327

95.4

2.51

.35

.2

75.3

Sept.

> dO.2

,

Run-off in 

acre-feet

374

80

450

22,040

5,000

2,660

8,800

11,350

20,130

5.67O

154

22

12

54,700

Peak discharge.- Jan. (4 p. 1.350 sec.-ft.; Mar. 26 (11 p.m.) 1,570 sec.-ft.; May 10 (8 p.m.)

814 sec.-ft.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge based on two field estimates of flow.

9-232 February 1936

TJUITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
236 MOKELUMNE RIVER BASIN

Bear River at Pardoe Camp, Calif.

Location.- Water-stage recorder, lat. 38°32', long. 120°15', in sec. 18, T. 8 N., R. 16 

E., 2 "miles downstream from Bear River Reservoir of Pacific Gas & Electric Co. Altitude of gage, about 5,650 feet (fron topographic nap).

Drainage area.- 33.0 square miles.

Records available.- July 1927 to September 1940.

Average discharge.- 13 years, 90.6 second-feet.

Extremes.- Maximum discharge during year, 2,700 second-feet Mar. 26 (gage height, 7.78 

feet;; minimum, 4.2 second-feet Dec. 8.

1927-40: 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 results of four discharge measurements furnistiea Dy the Pacific Gas & Electric Co., under general supervision of the Geological 

Survey in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1959 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

6.5 

8.5 

6 

5.5 

5.5

8 

6.5 

6.5 

6 

6

6 

6 

6 

6 

5.5

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5 

6.5 

6.5

6 

6 

6.5 

6 

6 

6

Hov.

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

' .8 

.8

.6 

.6 

.6 

.4 

5.5

5.5 

5 

5 

5 

4.8

Dec.

4.8 

4.8 

4.6 

4.4 

4.4

4.6 

4.4 

4.4 

4.4 

5.5

9.5 

6.5 

6 

5.5 

5.5

5.5 

5.5 

5.5 

10 

40

40 

40 

40 

40 

40

40 

40 

40 

40 

40 

40

Jan.

47 

374 

182 

248 

106

101 

101 

128 

130 

146

223

165 

123 

110 

108

120 

154 

151 

148 

144

143 

j.40 

136 

135 

210

349 

194 

172 

167 

163 

165

Feb.

159 

152 

186 

167 

158

192 

161 

148 

143 

140

136 

135 

132 

130 

128

124 

123 

120 

119 

117

116 

116 

215 

146 

143

163 

230 

227 

154

Month

Oot 

HOY 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

V

uary

ater year 1939-4

Mar.

138 

132 

126 

124 

122

120 

124 

128 

' 126 

120

98 

20 

18

18 

19

31 

31 

28 

31 

34

36 

44 

49 

66 

116

1,320 

1,080 

368 

542 

851 

365

Apr.

232 

182 

159 

144 

126

128 

159 

152 

180 

245

302 

376 

453 

474 

388

223 

238 

365 

441 

430

471 

542 

539 

478 

368

232 

180 

159 

156 

219

Seoondfoot-dayB

187.5 

154.6 

585.8

21,708.8

4,983 

4,380 

6,425 

8,741 

16,935 

3,959 

220 

178.1 

137.2

46,886.2

May

468 

780 

625 

494 

282

306 

393 

542 

664 

723

810 

770 

689 

656 

636

595 

566 

577 

532 

588

640 

613 

598 

580 

500

432 

410 

396 

351 

304 

404

^ "fl TTl BUM

8.5 

6 

40

447

374 

230 

1,320 

542 

810 

390 

11 

6 

4-8

1,320

June

390 

287 

273 

258 

245

249 

236 

216 

198 

192

186 

172 

154 

141 

120

105 

94 

78 

66 

51

51 

40 

31 

27 

24

19 

16 

14 

14 

12

July

11 

8.5 

8 

7.5 

7.5

7.5 

7.5 

7.5 

7.5 

7.5

7 

7 

7 

7 

7

7 

7 

7 

7 

7

6.5 

6.5 

6.5 

6.5 

6.5

6.5 

6.5 

6.5 

6 

6 

6

Minimum

5 

4.4

4.4

4.4

47 

116 

18 

126 

282 

12 

6 

4.8 

4.4

4.4

Aug.

6 

6 

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 

5.5 

5 

5 

4.8 

4.8

Mean

6.05 

5.15 

18.9

59.5

161 

151 

207 

291 

546 

132 

7.10 

5.75 

4.57

128

Sept.

4.8 

4.8 

4.8 

4.8 

4.8

4.8 

4.8 

4.6 

4.6 

4.6

4.6 

4.6 

4.6 

4.6 

4.6

4.6 

4.6 

4.6 

4.6 

4.4

4.4 

4.4 

4.4 

4.4 

4.4

4.4 

4.4 

4.4 

4.4 

4.4

Run-off in 

acre-feet

372 

307 

1,160

43,060

9,880 

8,690 

12,740 

17,340 

33,590 

7,850 

436 

353 

272

92,990

Peak discharge.- Jan. 2 (5 p.m.) 1,330 sec.-ft.; Mar. 26 (10 p.m.) 2,700 sec.-ft.; May 11 (10 

n.) 1,300 sec.-ft.

9-2S2 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
MOKELUMNE RIVER BASIN 237

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. 13 E., 200 feet downstream from highway bridge, 1 mile south of West Point, and 3 

miles upstream from confluence with South Fork. Altitude of gage, about 2,500 feet.

Drainage area.- 67.2 square miles.

Records available.- October 1926 to September 1940. October 1911 to October 1926, at

site about 1,200 feet upstream.

Average discharge.- 28 years (1912-40), 52.5 second-feet.

Extremes.- Maximum discharge during year, 1,900 second-feet Mar. 31 (gage height, 6.40 

feet;; minimum, 3.0 second-feet Oct. 1.

1911-40: Maximum discharge observed, 2,550 second-feet Jan. 23, 1914 (gage height, 

10.0 feet, former site and datum), from rating curve extended above 490 second-feet; 

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 period of backwater which are fair. Several 

small diversions above station. Storage In Calaveras Reservoir (capacity, 1,740 acrefeet), 6 miles above station, began in January 1940. Some water diverted from river 

above station to South Fork of Mokelumne River.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

18

13

14

IS

16

17

18

19

20

SI

28

25

24

85

26

27

28

29

30

51

Oct.

4.9

10

7

5

4.6

8.5

7

5.5

4.9

4.4

4.0

3.8

3.8

3.8

3.8

3.8

3.6

4.0

4.0

4.0

4.0

3.8

3.6

6

12

8.5

7.5

7

7.5

7.5

7.5

HOT.

6

4.4

4.2

4.0

4.0

3.8

3.6

3.4

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.6

3.6

3.6

3.6

3.6

3.6

3.8

3.8

3.8

7

14

7.5

6

5

4.9

-

Dec.

4.6

4.6

4.6

4.6

4.4

5

5

4.9

4.6

7

18

12

10

9.5

8.5

8

7.5

7

7

5

4.6

4.4

4.4

4.6

4.6

4.6

4.9

4.6

4.9

5

5

Jan.

6.5

42

25

77

29

20

45

160

246

152

182

178

101

96

78

64

55

49

43

39

36

34

32

29

122

400

246

162

130

109

101

Feb.

93

93

132

186

180

184

174

145

125

109

98

88

84

111

90

81

98

98

86

80

74

81

308

257

209

248

950

935

783

.

-

Month

Calendar year 1939 ......................

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

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

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

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

Water year 1939-40. .....................

Mar.

515

400

h324

h298

h266

h216

199

190

182

176

170

164

158

154

149

158

147

141

136

132

128

127

121

125

139

266

410

300

371

1,080

1,310

Apr.

742

536

441

384

330

290

263

240

222

205

190

ISO

174

170

168

162

156

152

150

143

141

139

136

134

134

139

132

127

123

120

-

Seoondfoot-days

175.?

133.2

193.4

6,951.5

3,090.5

6,180

8,652

6,623

1,499

613

373

176.5

154.2

27,863.1

May

116

113

109

114

109

88

44

42

39

38

37

36

35

35

34

32

33

30

31

31

30

30

29

29

29

30

33

34

34

35

40

Maximum

12

14

18

128

400

950

1,310

742

116

46

15

12

6.5

1,310

June

46

44

43

41

41

40

40

33

16

14

14

12

12

12

12

14

14

14

14

14

13

12

12

12

12

11

11

11

14

15

-

July

13

12

12

12

11

10

10

11

10

10

10

1111

15

15

14

14

13

13

13

12

12

13

12

12

12

12

12

12

12

12

IHi-^immi

3.6

3.2

4.4

1.0

6.5

74

121

120

29

11

10

4.0

4.0

3.2

Aug.

12

11

10

9

8.5

8

7.5

7

6.5

6

5

4.5

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

Mean

5.65

4.44

6.24

19.0

99.7

213

279

281

48.4

80.4

12.0

5.69

5.14

76.1

Sept.

4.9

4.9

5

6

6

5.5

5.&

5

4.2

4.0

4.2

4.0

4.0

4.9

5

6

6

6.5

6

6

5.5

5

4.9

4.9

4.9

4.9

4.6

4.9

5.5

5.5

-

Run-off in 

acre-feet

348

264

384

13,790

6,130

12,260

17,160

13,140

2,970

1,220

740

350

306

55,270

Peak discharge.- Jan. 9 (2:30 a.m.) 365 sec.-ft.; Jan. 26 (1 p.m.) 452 sec.-ft.; Feb. 23 (2 p.m.) 

512 sec.-ft.; Feb. 28 (12 m.) 1,150 see.-ft.; Mar. 26 (12 p.m.) 597 sec.-ft.; Mar. 31 (1 a.m.) 

1,900 sec.-ft.

h Discharge computed from staff gage read twice dally.

Hote.- Backwater from obstructions on control June 13 to Sept. 30; discharge computed on basis 

of gage-height record and discharge measurement.

9-292 February 1936 Geological Surrey
238 MOKELUMNE RIVER BASIN 

South Fork of Mokelumne River near West Point, Calif.

Location.- Water-stage recorder, lat. 38°22', long. 120°33', in SWs sec. 16, T. 6 N., R. 

13 K., 600 feet downstream from Sawyer Bridge, 2 miles upstream from confluence with 

Middle Fork, and 24 miles southwest of West Point. Altitude of gage, about 2,000 

feet.

Drainage area.- 73.8 square miles.

Records available.- October 1933 to September 1940.

Extremes.- Maximum discharge during year, 3,440 second-feet Mar. 31 (gage height, 9.55 

feet); minimum, 7.5 second-feet Oct. 1.

1933-40: 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 good. Small diversions above station. At times as much as 12 secondfeet are diverted from the Middle Fork into the South Fork above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

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

29

20

13

12

18

20

14

12

11

10

9.5

9.5

9.5

9

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

12

18

12

10

10

9.5

9

8.5

HOT.

9.5

10

11

11

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

15

30

18

15

14

13

-

Dec.

13

13

12

12

12

13

13

13

12

17

40

20

14

12

12

12

11

11

10

10

9.5

9.5

9.5

10

10

10

10

9.5

10

10

10

Jan.

14

96

71

159

73

55

99

308

458

323

430

427

210

145

112

94

82

73

66

60

57

53

50

49

179

570

348

230

179

151

136

Feb.

126

123

192

228

228

230

216

181

158

142

132

119

112

150

122

110

127

122

109

101

96

102

279

262

240

308

1,650

1,460

1,100

_

-

Month

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

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

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

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

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

Water year 1939-4 0......................

Mar.

688

500

400

326

280

248

228

210

197

181

170

156

145

138

130

138

126

119

114

109

105

102

100

106

144

364

750

438

496

1,400

1,960

Apr.

953

645

495

420

352

312

284

262

244

225

209

197

185

177

172

164

149

142

134

126

122

116

112

109

110

120

109

104

99

95

-

Secondfoot-days

363.5

346.5

390.0

9,112.8

5,357

loisee

6,943

1,944

987

562

361

342.0

36,689.0

May

90

86

83

95

88

82

78

74

69

66

63

60

60

59

59

59

59

55

55

54

52

51

50

51

51

50

49

50

48

48

50

Mflnrtnnm

29

30

40

136

570

1,650

1,960

953

95

47

27

12

14

1,960

June

47

44

42

42

41

39

38

37

35

36

33

32

32

32

32

31

31

31

30

30

29

28

28

27

26

26

27

26

27

28

-

July

27

26

26

26

C24

C22

C21

C20

C19

17

17

17

17

17

17

17

17

17

17

17

16

16

16

15

15

14

15

15

14

14

14

Minimum

8.5

9.5

9.5

2.9

14

96

100

95

48

26

14

11

9.5

8.5

Aug.

12

12

12

12

12

12

12

12

11

11

12

12

12

12

12

12

12

12

12

12

11

11

11

12

11

12

11

11

11

11

11

Mean

11.7

11.6

12.6

25.0

173

294

341

231

62.7

32.9

18.1

11.6

11.4

100

Sept.

11

11

12

12

12

12

12

12

11

11

11

11

11

9.5

11

11

12

14

12

11

11

10

9.5

10

10

10

10

14

14

14

-

Run-off in 

acre-feet

721

687

774

18,080

10,630

16,910

20,960

13,770

3,860

1,960

1,110

716

678

72,780

Peak discharge.- Jan. 11 (10 p.m.) 664 sec.-ft.; Jan. 26 (7 p.m.) 664 sec.-ft.; Feb. 23 (1 p. 

415 sec.-ft.; Feb. 27 (5 p.m.) 2,170 sec.-ft.; Mar. 27 (12:30 a.m.) 1,300 sec.-ft.; Mar. 31 

(1 a.m.) 3,440 sec.-ft.

c Backwater from obstructions on control; discharge interpolated.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
MDKELUMNE RIVER BASIN 239

Woodbridge canal at Woodbridge, Calif.

Location.- Differential water-stage recorder and gate-opening recorder, lat. o8°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.

Records available.- April 1926 to September 1940. 

Average discharge.- 14 years, 102 second-feet.

Extremes.- Maximum daily discharge during year, 346 second-feet June 16; no flow Nov. 

17 to Dec. 11, Dec. 17 to Apr. 16.

1926-40: Maximum daily discharge, 368 second-feet June 30, 1937; no flow during 

part of each year.

Remarks.- Records excellent except those for periods of doubtful or no gage-height 

records, which are fair. Discharge computed from records of gage openings and 

effective head as shown by recorders. Canal diverts water from Woodbridge Reservoir 

on Hokelumne River in sec. 34, T. 4 N., R. 6 E., in Woodbridge for irrigation of lands 

south and west of Woodbridge.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

80

21

22

as

24

25

26

27

28

29

SO

31

Oct.

162

151

170

174

157

137

134

125

125

141

151

148

145

143

143

145

152

147

136

133

132

145

118

dllS

dl!7

dl!7

3116

dl!6

d!04

91

104

Hcv.

99

100

S7

79

76

86

99

1O4

100

95

86

86

85

90

93

32

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Dec.

0

0

0

0

0

0

0

0

0

0

0

Bl

a4

a7

a7

a3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan. Feb.

Month

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

Calendar year 193% .....................

March. ............. ... , . .

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

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

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

Water year 1939- 10, .....................

Mar. Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

41

53

58

62

41

89

125

133

142

86

67

51

51

60

Secondfoot-days

4 197

1 397

22

50,378

0

0

0

1,059

6,250

9^063

6^197

46,199

May

59

90

113

109

98

112

114

129

183

204

223

192

235

263

260

241

241

242

222

254

238

233

226

263

242

226

236

235

280

263

244

Majrirnnm

174

104

7

347

0

0

0

142

280

346

343

330

250

346

June

217

223

224

238

246

262

295

302

2S9

296

294

295

310

315

333

346

328

333

339

325

308

335

335

323

307

312

311

317

315

303

July

35

166

312

315

293

315

319

286

325

343

342

328

310

280

280

307

319

314

312

298

262

247

278

314

316

316

314

286

291

328

312

M^nlmim

91

0

0

0

0

0

0

0

217

35

240

163

0

Aug.

330

315

266

264

286

300

315

312

313

310

2S8

288

313

324

322

319

305

295

286

315

315

303

280

275

264

242

240

244

268

275

266

Mean

135

46.6

.7

138

0

0

0

35.3

202

299

292

207

126

Sept.

240

233

222

244

244

242

248

220

210

244

250

242

220

195

163

177

193

198

195

194

198

190

184

184

191

184

176

175

171

170

Run-off in 

acre-feet

8,320

2,770

44

99,920

0

0

0

2,100

12,400

17 ,800

17 980

17 930

12J290

91,630

a No ga^e-height record; discharge estimated.

d Doubtful gage-height record; discharge computed on basis of partial gage-height records and 

one discharge measurement.

9-832 February 1936

TOUTED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
£40 MDKELUMNE SIVER BASIN

Sutter Creek near Sutter Creek, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°23'30", long. 120°46'50", 

 in sec. 9, T. 6 N., R. 11 E., 1.3 miles east of Sutter Creek post office. Altitude 

of gage, about 1,150 feet.

Drainage area.- 50.6 square miles.

Records available.- January 1956 to September .1940. February 1922 to December 1935, at 

site 1.7 miles downstream. Flow fron mine drainage and town sewers enters between 

the two sites.

Extremes.- Maximum discharge during year, 2,050 second-feet Mar. 31 (gage height, 5.74 

feet); no flow Aug. 22 to Sept. 3.

1936-40: Maximum discharge, 3.,900 second-feet Feb. 22, 1936 (gage height, 8.0 

feet, present datum), which exceeds maximum recorded at former site downstream; no 

flow at times in each year exrept 1938.

Remarks.- Records good. Small diversions above station for irrigation.

Discharge, in secend-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

1920

21

22

25

25

26

Oct.

0.2

.4

.4

.4

.5

.9

3.9

3.2

2.3

1.8

1.3

1.1

1.1

.9

1.1

1.5

1.8

1.8

1.8

1.8

1.8

1.5

1,6

1.8

3.6

4.0

3.2

2.9

2.6

2.6

2.9

SOT.

2.6

1.8

1.8

1.5

1.8

1.8

1.8

1.8

1.8

1.8

1.6

1.3

1.1

1.1

.9

.7

1.1

1.1

1.1

.9

1.5

1.8

1.8

1.5

2.0

3.2

5

4.4

4.0

4.0

-

Dec.

4.4

4.4

4.8

5

5

6.5

7

6

6

6.5

12

9.5

6.5

5.5

4.4

4.0

3.6

3.2

3.2

2.9

2.9

2.6

2.3

2.3

2.3

2.6

2.6

2.6

2.6

2.9

3.6

Jan.

4.8

32

30

87

30

22

24

116

368

118

130

150

64

40

28

23

22

21

21

19

16

14

12

12

98

342

126

70

60

40

36

Feb.

33

3£

57

66

70

74

72

53

44

37

33

30

28

78

69

44

7C

91

62

48

42

40

107

87

85

136

932

604

488

-

Month

March. ......... .. . . ... ,

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

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

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

Water year 1939-40. .................. ,

Mar,

274

180

135

107

87

72

64

67

48

46

41

37

33

31

30

31

28

25

23

21

20

20

20

20

33

149

269

126

171

831

1,110

Apr.

404

240

177

167

121

106

92

83

73

66

60

55

62

48

47

45

39

36

34

30

28

26

26

24

26

36

33

28

26

24

-

Secondfoot-days

66.6

138.7

2,845.0

16.3

15.3

12,874.1

May

22

22

22

26

24

22

22

21

20

18

16

14

14

13

12

13

11

9.6

8

8

7.5

6,6

6.6

6.6

6.6

6.6

6.6

7

7.6

8

11

Maximum

12

102

404

1.1

.9

1,110

June

11

9.6

9

8

7.6

7

6.6

6.6

6.6

6.5

6

4.8

4.4

4.4

3.6

2.9

2.3

2,0

2.0

2.0

2.0

1.5

1.1

.9

.7

.6

.7

.7

.9

.9

-

July

1.1

1.1

1.1

1.1

1.1

1.1

.9

.9

1.1

1.1

.9

.7

.6

.5

.4

.4

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

Minianra

0.2

2.3

0

24

.1

0

0

Aug.

0.1

.2

.2

.2

.2

.3

.3

.3

.3

.2

.2

.2

.2

.2

.1

.2

.2

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

Mean

4.47

7.79

74.7

.63

.61

36.2

Sept.

0

0

0

.1

.1

.1

.2

.2

.3

.4

.6

.6

.6

.7

.7

.9

.9

.9

.9

.9

.7

.7

.7

.6

.6

.6

.6

.6

.6

.7

-

Run-off in 

acre-feet

112

276

6,650

4,300

6,940

4,440

826

32

30

26,530

Peak dlacharge.- Jan. 4 (8:30 a.m.) 227 see.-ft.; Jan. 9 (9 a.m.) 682 see.-ft.; Jan. 26 (1 a.m.) 

459 see.-ft. Feb. 27 (11 a.m.) 1,520 sec.-ft,; Mar. 26 (11:30 p.m.) 768 see.-ft.; Har, 31 (1:30 

a.m.) 2,050 sec.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
MOKELUWE RIVER BASIN 241

North Fork of Cosumnes River near El Dorado, Calif.

Location.- Water-stage recorder, lat. 38°36', long. 120°51', In NEi sec. 35, T. 9 N., 

R. 10 E., 1 mile north of Nashville, 2.7 miles upstream from mouth, and 6 miles 

south of El Dorado. Altitude of gage, about 910 feet (from topographic map).

Drainage area. 202 square miles.

Records available.- October 1933 to September 1940. August 1911 to September 1933, at 

site It miles upstream.

Average discharge.- 29 years, 195 second-feet.

Extremes.- Maximum discharge during year, 8,350 second-feet Mar. 31 (gage height, 10.12 

feet), from rating curve extended above 4,000 second-feet: minimum, 0.4 second-foot 

Aug. 15, 16, 21.

1911-40: Maximum discharge, that of Mar. 31, 1940; no flow during part of 1924, 

1926, 1931, 1933, 1934.

Remarks.- Records £ood. Diversions above station for Irrigation.

Discharge, IB second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

5

6

7

a

9

10

11

18 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

89

30 

31

Dot.

7.5 

9.5 

16 

20 

16

15 

40 

28 

20 

16

14 

12 

12 

11 

10

10 

10 

10 

10 

1O

10 

9.5 

9.5 

12 

27

27 

20 

16 

16 

16 

16

HOT.

16 

15 

15 

14 

14

14 

14 

13 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

15

31 

33 

23 

19 

18

Dec.

16 

16 

16 

16 

16

18 

20 

19 

18 

25

43 

55 

30 

23 

20

19 

16 

16 

14 

14

14 

14 

14 

14 

14

14 

13 

14 

14 

15 

18

Jan.

23 

191 

298 

420 

248

129 

116 

476 

1,490 

818

1,630 

1,950 

780 

481 

356

280 

232 

196 

168 

148

132 

127 

119 

114 

336

1,780 

1,500 

858 

622 

498 

430

Feb.

385 

348 

435 

712 

773

870 

818 

640 

530 

450

395 

343 

316 

700 

460

356 

445 

455 

366 

320

294 

280 

730 

925 

897

1,130 

3,860 

4,230 

3,660

Month

Dot 

Hot 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

H

eaber. .................................

uary

ater year 1939-4

Peak discharge. -

p.m.) 2.640 seo.-ft 

(2 a. IT.) 8,350 sec

Mar.

2,200 

1,570 

1,190 

953 

799

694 

616 

569 

536 

486

460 

415 

380 

356 

334

338 

334 

316 

302 

289

284 

280 

276 

289 

420

1,090 

3,320 

1,860 

2,230 

5,190 

5,570

Apr.

2,970 

2,020 

1,550 

1,340 

1,080

925 

838 

754 

682 

622

569 

536 

514 

498 

514

460 

420 

405 

395 

375

366 

361 

361 

352 

343

352 

330 

298 

280 

264

Seoondfoot-days

476.0 

446 

588

20,474.4

16,946 

26,123 

33,946 

20,774 

6,520 

1,525 

246.7 

27.4 

57.7

107,675.8

Jan. 9 (12m.) 2,040 seo.-ft.; Jan. 

.; Feb. 28 (2 p.m.) 4,940 see. -ft.; 

-ft.

May

260 

268 

276 

302 

284

260 

244 

240 

240 

248

256 

260 

260 

244 

232

220 

224 

204 

196 

186

186 

182 

168 

161 

158

148 

132 

124 

119 

116 

122

Ma*^

40. ' 

33 

55

390

1,950 

4,230 

5,570 

2,970 

302 

122 

20 

2.0 

6

5,570

June

122 

111 

101 

94 

87

80 

75 

73 

67 

62

58 

53 

50 

46 

43

40 

39 

36 

35 

33

32 

28 

27 

24 

22

19 

18 

17 

16 

17

July

20 

16 

14 

14 

12

11 

10 

9,5 

9 

8

7.5 

7.5 

7.5 

7.5 

7.5

7.5 

7.5 

6.5 

5 

5

4.8 

5.5 

10 

9 

5.5

4.8 

3.5 

3.2 

2.9 

2.5 

2.5

Aug.

2

1 

1 

1 

1

1 

1 

1 

1

1 

1

i»T^Mn«i Mean

7.5 15.4 

12 14.9 

13 19.0

.2 56.1

23 547 

280 901 

276 1,095 

264 692 

116 210 

16 50.8 

2.5 7.96 

.4 .88 

.6 1.92

.4 294

11 (10 p.m.) 3,500 sec. -ft. ; Jan 

Mar. 27 (3 a.m.) 5,170 seo.-ft.;

.0 

.S 

.6 

.4 

.4

.2 

.2 

.0 

.0 

.8

.7 

.6 

.6 

.6 

.4

.4 

.5 

.5 

.5 

.5

.4 

.6 

.6 

.6 

.6

.9 

.2 

.7 

.7 

.7 

.7

Sept.

0.8 

.8 

.7 

.6 

.7

.7 

1.0 

1.0 

1.0 

1.0

1.0

- i.o

.8 

1.0 

1.2

1.2 

1.3 

1.4 

1.4 

6

4.8 

3.8 

3. '2 

2.5 

2.0

1.9 

2.0 

4.2 

3.2 

5.5

?£?-"£

944 

885 

1,170

40,610

33,610 

51,810 

67,330 

41,200 

12,930 

3,020 

489 

54 

114

213 ,600

. 26 (8 

Mar. 31

9-832 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
242 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. 

8 N., R. 8 E., at highway bridge at Michigan Bar, 54 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 1940.

Average discharge.- 33 years, 462 second-feet.

Extremes.- Maximum discharge during year, 26,200 second-feet Mar. 31 (gage height, 11.66 

feet), from rating curve extended above 10,000 second-feet; minimum, 0.5 second-foot 

Sept. 19.

1907-40: Maximum discharge observed, that of Mar. 31, 1940; no flow during part 

of 1908, 1918, 1919, 1924-26, 1931, 1934, 1939.

Flood in March 1907 reached a stage of 16.3 feet.

Remarks.- Records good. Diversions above station for Irrigation.

Rating table, water year 193g-40 (gage height, in feet, and discharge, in second-feet)

1.5 0.4 2.7 gi 4.4 i,ogo 7.8 g,8oo

1-7 1.1 2.9 140 4.8 1,610 8.4 12,200 

l.g 5.5 3.1 204 5.4 2,560 g.O 14,700 

2.1 17 3.4 326 6.0 3,790 g.5 16,800 

2.3 35 3.7 490 6.6 5,400 

2.5 57 4.0 710 7.2 7,440

Discharge, In second-feet, watep year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

ie

17 

18 

19 

20

81 

SS 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

11 

16 

38 

35

30 

31 

63 

43 

33

28 

22 

19 

17 

16

14 

13 

12 

12 

13

13 

12 

12 

14 

18

45 

43 

34 

29 

29 

34

BOV.

29 

26 

24 

23 

23

22 

22 

20 

19 

19

18 

18 

18 

17 

17

17 

17 

17 

17 

17

17 

17 

17 

17 

19

21 

62 

52 

40 

33

Dec.

30 

27 

27 

28 

a28

28 

30 

33 

33 

38

66 

106 

82 

56 

46

42 

37 

34 

32 

30

31 

30 

29 

28 

30

30 

29 

28 

23 

28 

32

Jan.

40 

148 

734 

880 

694

376 

361 

1,210 

4,300 

2,110

2, goo 

3,gio

1,800 

1,100

79g

63B 

522 

448

sgs

361

321 

298 

280 

268

ago

4,160 

3,380 

1,920 

1,390 

1,090 

920

Feb.

844 

750 

940 

1,460 

1,710

i.goo i,gso

1,460 

1,190 

1,000

880 

782 

774 

2,540 

1,280

g20 

1,250 

1,240 

930 

799

718 

670 

1,570 

2,020 

2,400

2,890 

10,800 

10,500 

9,200

Month

Dot 

Koi 

Dec

C

Jan 

Fet 

Mar 

Apr

J\n joi Au« 

Sep

11

uary

ater year 1939-4

Mar.

4,870 

3,470 

2,670 

2,150 

1,810

1,580 

1,400 

1,300 

1,210 

1,110

1,020 

950 

871 

808 

758

742 

758 

710 

678 

646

630 

622 

615 

622 

853

1,910 

7,280 

3,600 

4,550 

13,500 

16,700

App.

7,190 

4,540 

3,470 

3,030 

2,450

2,080 

1,900 

1,740 

1,570 

1,430

1,310 

1,220 

1,190 

1,130 

1,130

1,040 

g40

ago

871 

835

 799 

790 

 790 

774 

742

782 

750 

678 

622 

585

Seoondfoot-days

761 

695 

1,151

43,14g.9

38,646 

65,347 

80,393 

47,268 

14,309 

3,476 

834.5 

56.0 

47.8

252,984.3

May

570 

570 

600 

622 

66£

585 

542 

522 

522 

529

548 

555 

555 

536

516

496 

478 

448 

425 

408

398 

3g2 

381 

366 

351

331 

308 

285 

276 

264 

268

Maxdjnun

63 

62 

106

1,500

4,300 

10,800 

16,700 ?,igo

662

280

log

5.5 

4.5

16,700

June

280 

256 

236 

218 

201

184 

173 

164 

155 

140

12g 

118 

111 

102 

91

83 

82 

78 

72 

68

68 

66 

62 

57 

55

49 

49 

45 

43 

41

July

43 

43 

59 

36 

109

102 

95 

25 

23 

23

22 

21 

21 

17 

18

14 

16 

18 

18 

14

14 

14 

13 

15 

15

11

g

8 

6.5

e

6

Aug.

5.5 

5 

4.8 

4.5 

3.8

3.2 

2.5 

2.2 

2.2 

1.6

1.6 

1.6 

1.6 

1.1 

al.O

al.l 

al.2 

1.2 

1.0 

.8

a. 8 

a. 7 

a. 7 

a. 6 

a. 7

a. 7 

a. 8 

h.9 

a. 9

a.g

a. 8

Minimum Mean

11 24.5 

17 23.2 

23 37.1

0 118

40 1,247 

670 2,253 

615 2,5g3 

585 1,576 

264 462 

41 116 

6 26. g 

.6 18.1 

.5 1.59

.5 691

Peak discharge.- Jan. g (11 a.m.) 6,280 sec. -ft.: Jan. 12 (12:30 a.m.) 5,620 sec. -ft.

Sept.

aO.8 

h.9 

al.O 

al.O

a.g

a. 8

a.g 

a.g

al.O 

1.1

1.1 

1.1 

1.0 

.9

1.0

1.1 

.8 

.6 

.5

.g

1.0

1.1

4.2 

4.2 

4.5

4.2 

3.5 

2.5 

2.2 

2.1

Run-off in 

acre-feet

1,510 

1,380 

2,280

85 ,580

76,650 

129,600 

159,500 

93,750 

28,380 

6,890 

1,660 

111 

95

501,800

; Jan. 26

(9 to 11 a.m.) 5,500 sec.-ft,; Feb. 27 (8 a.m.) 12,000 sec.-ft.5 Mar. 27 (2 a.m.) 11,400 sec.-ft.j 

Mar. 31 (3 a.m.) 26,200 sec.-ft.

a No gage-height record; discharge Interpolated or computed on basis of recorded range of stage.

h Discharge computed frop staff-gage reading.

,,9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeologlcal Survey
GOOSE LAKE BASIN 243

Drew Creek near Lakeview, Oreg.

Location.- Staff gage, lat. 42°07', long. 120°36', In SEi sec. 4, T. 40 S., R. 18 E., 

at highway bridge, half a mile downstream from Willow Creek, 1 mile downstream from 

Drew Creek Dam, and 13 miles southwest of Lakeview.

Drainage area.- 211 square miles.

Records"available.- January 1909 to September 1921 and October 1925 to September 1940 in 

reports of U. S. Geological Survey, January 1909 to September 1936 In reports of 

State engineer.

Average discharge.- 23 years (1909-30, 1937-38, 1939-40), 66.3 second-feet, including 

diversion by North Drew canal.

Extremes.- Maximum discharge during year, 707 second-feet Mar. 31 (gage height not observed), computed from gage reading Mar. 30 and reservoir data; minimum not determined.

1909-40: Maximum discharge, 3,000 second-feet (estimated) Mar. 1, 2, 1910; no 

flow at times.

Remarks.- Records fair except those for days on which no gage reading was obtained, which 

are poor. Considerable regulation caused by Drew Creek Reservoir, 1 mile above station. Since March 1914 North Drew canal of Goose Lake Valley Irrigation Co. has 

diverted water around station (see following page).

Rating table, water year 1939-40 (gage height, In feet, and discharge, in second-feet)

0.4 

.6 

.8

1.0

14

22

34

47

1.3 

1.6 

1.9 

2.2

69

94

122

155

2.5 

3.0 

3.5 

4.0

2OO 

297 

418 

56O

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

S

6 

V 

8 

9 

10

11 

12 

13 

14 

IS

16 

IV 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5

Hov.

> 5

Dec.

5

Jan.

> 5

Feb.

5

Month

Oot 

Hov< 

Dec

C:

Jam 

FelM 

Mar< 

Apr 

May

Jun<

JulAugl 

Sep

Us

ilendar year

»ter year 1939-4C

liar.

> 5

h322

h707

Apr.

672 

h642 

615 

59O 

571

h554 

546 

h536 

h404 

94

94 

94 

h94 

hl61 

h255

255 

255 

255 

h255 

255

255 

h!83 

183 

183 

183

h!22 

h!20 

121 

h!22 

122

Seoondfoot-days

155 

150 

155

-

155 

145 

1,174 

8,791 

2,409 

2.1O4 

1,874 

1,038 

375

18,525

May

122 

122 

h!03 

103 

103

h94 

94 

h52 

h22 

22

h22 

22 

h35 

83 

83

83 

83

h83 

84 

84

h85 

85 

85 

85 

h94

94 

94 

h72 

72 

72 

72

Maximum

~

-

7O7 

672 

122 

79 

74 

47 

28

707

June

h72 

72 

72 

h64 

64

64 

64 

h57 

57 

57

h61 

61 

h71 

72 

h72

72 

72 

h72 

72 

72

72 

h79 

79 

79 

h79

78 

76 

74 

h74 

74

July

h74 

h72 

72 

72 

72

h61 

60 

h6O 

60 

60

60 

6O 

h64 

61 

h58

h58 

58 

58 

58 

h58

58 

59 

h6O 

6O 

60

h6O 

60 

6O 

h47 

47 

47

Minimum

_

-

94 

22 

57 

47 

22

-

Aug.

47 

h40 

40 

4O 

h46

44 

43 

42 

h40 

38

36 

h34 

34 

34 

34

h34 

32 

30 

h28 

33

h33 

33 

33 

h22 

22

22

h24 

24 

24 

24

h28

Mean

5 

5 

5

-

5 

5 

37.9 

293 

77.7 

7O.1 

60.5 

33.5 

12.5

50.6

Sept.

28 

28 

h22 

22 

22

22 

h22 

22 

h21 

21

19 

17 

15 

h!4

5

;

Rim- off in 

acre-feet

3O7 

298 

3O7

-

3O7 

288 

2,330 

17.44O 

4,780 

4,170 

3,720 

2.O60 

744

36,750

h Staff-gage reading! discharge computed from reading and observer's notes of gate changes at 

reservoir above station.

Note.- Discharge for days on which no staff-gage reading was obtained interpolated or computed 

on basis of information furnished by county watermaster, data for Drew Creek Reservoir, and known 

or assumed time of changing control gates.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
244 GOOSE LAKE BASIN

Monthly gage height and contents, of Drew Creek Reservoir near Lakeview, Oreg. 

water year October 1939 to September 1940

pate

Feb 29

Gage height 

(feet)

40.7 

40.5 

40.3 

40.9

-

43.3 

49.7 

55.7 

55.0 

53.6 

51.3 

48.6 

46.4 

45.6

-

Contents 

(acre-feet)

17,200 

16,800 

16,400 

17,600

-

23,050 

41,780 

65,750 

62,500 

56,390 

47,370 

38,120 

31,360 

29,080

-

Change in contents 

during month 

(acre-feet)

-400 

-400 

+1,200

-14,630

-1-5,450 

+18,730 

+23,970 

-3,250 

-6,110 

-9,020 

-9,250 

-6,760 

-2,280

+11,880

Hote.- Maximum contents observed during year, 65,750 acre-feet Mar. 31 (gage 

height, 55.7 feet).

Diversion, in acre-feet, of Horth Drew canal near Lakeview, Oreg. 

water year October 1939 to September 1940

May................... 2,080

June.................. 4,000

July.................. 3,560

August................ 3,250

September............. 912

The water year...... 13,800

Hote.- Ho flow during months omitted.
GOOSE LAKE BASIN 245

Cottonwood Creek near Lakeview, Oreg.

Location.- Water-stage recorder, lat. 42°14', long. 120°30', in SWi 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.- November 1908 to September 1919 and October 1925 to September 1940 

in reports of U. S. Geological Survey. November 1908 to September 1919 and October 

1924 to September 1936 in reports of State engineer.

Average discharge.- 23 years (1909-19, 1924-35, 1938-40), 20.1 second-feet.

Extremes.- Maximum discharge during year, 376 second-feet Mar. 28 (gage height, 4.49 

feet); minimum recorded, 0.8 second-foot Aug. 30 to Sept. 2 (gage height, 1.25 feet).

1908-19, 1924-40: Maximum discharge, between 500 and 1,000 second-feet during 

period Apr. 26 to May 1, 1927, when natural flow, estimated as 170 second-feet, was 

augmented by water escaping from reservoir through break in outlet conduit above 

control gate; no flow at times.

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 tables, water year 1939-40 (gage height, in feet, and discharge, in second-feet) 

Oct. 1 to Nov. 28 Mar. 15 to Sept. 30

1-2 0.6 1.2 0.5 2.0 12.9 3.2 117

1.3 1.4 2.0 2.3 23 3.5 170

1.4 2.3 

Discharge, in second-feet, water year October

1.6 

1.8

4.4 

8.1

4.0 

4.5

272

378

to September 1940

Day

1 

2 

3 

4 

S

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.

1.4 

1.6 

1.7 

1.9 

2.2

2.4 

2.1

1.9 

1.7 

1.6

1.6

1.5 

1.4 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.4

1.5 

1.5 

1.6 

1.9 

2.1

2.2 

2.5 

2.8 

2.8 

2.7 

2.5

HOT.

2.5 

2.5 

2.5 

2.4 

2.3

2.3 

2.3 

2.2 

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.0

2.1 

2.4 

2.4 

2.3 

2.5

2.5 

2.5 

2.4 

2.4 

2.4

2.5 

2.7 

2.5 

2.5 

2.5

Dec.

> a3

Jan.

a3

i

F'Jj

> a3

z

Konth

Dot 

Not 

Dec

C

Jan

Pet 

Mar 

Apr 

Ma, 

Jun 

Jul 

Aug 

Sep

Water year 1939-4C

Mar.

. a!5

29

29 

29 

27 

22 Z-i

24 

38 

49 

74 

123

180 

322 

304 

196 

232 

304

Apr.

308 

177 

112 

106 

64

51 

58 

66 

64 

42

42 

42 

88 

73 

68

84 

82 

64 

62 

74

90 

52 

45 

59 

68

68 

46 

22 

18 

58

Secondfoot-days

56.3 

69.6 

93

3,266.4

93 

87 

2,214 

2,253 

1,178 

773.5 

691 

355.5 

42.8

7,906.7

May

42

28 

27 

26

41

38 

25 

24 

30 

34

41 

42 

40 

36 

32

36 

45 

45 

46 

25

35 

35 

35 

35 

36

39 

48 

53 

53 

53 

53

Maximum

2.8

2.7

36

322 

308 

53 

50 

27 

19 

2.7

322

June

50 

38 

37 

37 

37

35 

35 

30 

30 

34

36 

35 

35 

34 

33

32 

24 

10 

25 

23

18 

15 

12 

12 

12

11 

8.8 

9.7 

12 

13

July

15 

15 

15 

15 

15

17 

21 

23 

23 

24

24 

24 

24 

25 

25

25 

23 

24 

24 

23

21 

23 

23 

24 

27

27 

27 

26 

24 

24 

21

M^p^mimi

1.3 

2.0

.3

18 

24 

8.8 

15 

.8 

.6

.8

Aug.

19

19 

19 

18 

19

18 

17 

17 

16 

16

16 

15 

15 

16 

15

15 

14 

13 

12 

12

10 

9.7 

4.0 

1.7 

1.7

1.6 

1.6 

1.5 

1.0

.9 

.8

Mean

1.82 

2.32 

3

8.95

3 

3 

71.4 

75.1 

38.0 

25.8 

22.3 

11.5 

1.43

21.6

Sept.

0.9 

.8 

.9 

.9 

.9

1.1 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.4 

1.3 

1.9 

2.7 

2.0

1.8 

1.7 

1.6 

1.6 

1.6

1.6 

1.6 

2.0

1.9 

1.8

Run-off in 

acre-feet

112 

138 

184

6,480

184 

173 

4,390 

4,470 

2,340 

1,530 

1,370 

705 

85

15,680

a No gage-height record; discharge computed on basis of Information furnished by county watermaster.

9-232 February 19 3<=

UNITED STATES DEPARTMEHT OP THE INTERIOR 

Geological Survey
246 SACRAMENTO RIVER BASIN 

SACRAMENTO RIVER MAIN STEM

Sacramento River at Antler, Calif.

Location.- Staff gage, lat. 40°53', long. 122°2.3', in SEi sec. 13, T. 35N., R. 5 W., 

200 feet upstream from highway bridge at Antler, 400 feet upstream from Gregory 

Creek, and 14 miles upstream from Pit River. December 1930 to Feb. 19, 1940, waterstage recorder a quarter of a mile downstream. Altitude of gage,about 938 feet (from' 

topographic map).

Drainage area.- 461 square miles, at site above Gregory Creek.

Records available.- November 1910 to December 1911, April 1919 to September 1940.

Average discharge.- 21 years (1919-40), 1,000 second-feet.

Extremes.- Maximum discharge during year, 58,000 second-feet Feb. 28 (gage height, 21.0 

feet, from floodmarks, recorder datum; 25.4 feet, from floodmarks, staff-gage datum), 

from rating curve extended above 10,000 second-feet on basis of slope-area and 

velocity-area studies; minimum, not determined.

1910-11; 1919-40: Maximum discharge, that of Feb. 26, 1940; minimum, 95 secondfeet Aug. 19, 28, 29, Sept. 3, 4, 1931.

Remarks.- Records good except those for periods of no gage-height record and varying 

backwater which are fair. No diversions. Recorder station below Gregory Creek 

destroyed by flood on Feb. 2£.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

85

86 

27 

28 

89 

30 

31

Oct.

164 

169 

169 

161

171

184 

177 

166 

161 

158

156 

153 

153 

153 

153

153 

153 

156 

158 

156

156 

156 

156 

177 

179

171 

171 

171 

169 

166 

166

Hov.

164 

164 

164 

164 

164

164 

164 

164 

164 

164

164 

164 

166 

166 

166

169 

169 

169 

169 

169

166 

169 

166 

169 

182

292 

228 

200 

190 

184

Dec.

184 

184 

184 

182 

182

182 

184 

341 

4',380 

9,640

3,700 

1,550 

1,020 

782 

650

600 

860 

710 

616 

575

515 

478 

460 

428 

402

386 

370 

382 

478 

1,010 

2,710

Jan.

6,240 

9,330 

6,400 

7,500 

4,040

2,640 

2,160 

4,190 

8,200 

5,990

4,660 

3,230 

2,380 

1,940 

1,650

1,460 

1,310 

1,200 

1,090 

1,010

946 

890 

878 

1,040 

3,810

7,540 

4,690 

3,200 

2,480 

2,150 

1,950

Feb.

1,800 

1,860 

7,230 

6,740 

5 ,320

6,470 

5,380 

3,910 

3,080 

2,590

2,260 

1,990 

2,020 

2,000 

1,900

1,820 

4,420 

3,180 

2,380 

2,000

1,900 

1,850 

1,800 

1,800 

4,000

11 ,000 

33 ,000 

50,000 

22,000

Month

Oct 

Hot

Dec

C

Jan

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

«

uary

ater year 1939-40. .....................

Mar.

10,000 

6,500 

4,600 

3,500 

3,200

3,000 

2,700 

2,500 

2,400 

2,S50

2,170 

2,050 

1,950 

1,850 

1,750

1,720 

1,680 

1,580 

1,510 

1,510

1,540 

1,680 

1,640 

1,990 

2,230

4,820 

4,420 

4,580 

13,200 

26 ,300 

14,500

Apr.

7,560 

5,630 

5,000 

4,910 

4,420

3,670 

4,020 

4,500 

4,260 

3,600

3,170 

3,000 

3,000 

2,840 

2,490

2,190 

2,130 

1,880 

1,780 

1,740

1,880 

1,850 

1,780 

1,840 

2,310

1,840 

1,740 

1,630 

1,560 

1,510

Seoondfoot-days

5,062 

5,257 

34,325

202,338

106,194 

195,700 

135,320 

89,730 

39,910 

16,379 

8,106 

5,014 

6,054

647,051

May

1,540 

1,780 

1,710 

2,070 

1,680

1,590 

1,520 

1,460 

1,480 

1,650

1,650 

1,650 

1,580 

1,500 

1,390

1,280 

1,280 

1,200 

1,140 

1,120

1,060 

1,020 

962 

950 

902

846 

808 

770 

705 

755 

862

MnyJBnWl

184 

292 

9,640

9,640

9,330 

50,000 

26,300 

7,560 

2,070 

1,180 

346 

222 

246

50 ,000

June

1,180 

980 

862 

740 

670

632 

623 

595 

595 

577

542 

508 

468 

460 

441

441 

430 

422 

422 

452

452 

441 

441 

422 

422

430 

430 

430 

441 

430

July

346 

346 

333 

314 

314

314 

296 

290 

278 

278

278 

272 

278 

266 

266

260 

245 

236 

245 

236

230 

230 

233 

219 

219

219 

219 

208 

208 

208 

222

Wjjn^miim

153 

164 

182

117

878 

1,800 

1,510 

1,510 

705 

422 

208

-

Aug.

222 

219 

219 

197 

197

197 

197 

197 

192 

192

169 

169 

152 

148 

146

144 

142 

140 

140 

140

138 

138 

136 

136 

136

136 

135 

135 

135 

135 

135

Mean

163 

175 

1,107

554

3,426 

6,748 

4,365 

2,991 

1,287 

546 

261 

162 

202

1,768

Sept.

135 

135 

160 

198 

210

198 

198 

190 

190 

190

190 

198 

243 

237 

225

205 

200 

205 

213 

219

205 

205 

190 

190 

195

205 

246 

240 

231 

208

Run-off in 

acre-feet

10 ,040 

10,430 

68 ,080

401,300

210,600 

388,200 

268,400 

178,000 

79,160 

32,490 

16,080 

9,950 

12,010

1,283,000-

Note.- Ho gage-height record Feb. 20 to Mar. 16, gage-height record affected by baolcwater from 

bridge construction Augo 14 to Sept. 2; discharge for these periods computed on basis of discharge 

measurements and records for McCloud River at Balrd.
SACRAMENTO RIVER MAIN STEM 

Sacramento River at Kennett, Calif.

247

Location.- Water-stage recorder, lat. 40°44', long. 122°24', In SWt sec. 2, T. 33 N. f 

R. 5 W., at highway bridge at Kennett. Datum of gage Is 618.26 feet above mean sea 

level. Datum of gage Is 2.00 feet lower than wire-weight gage of U. S. Weather 

Bureau at same location.

Drainage area.- 6,600 square miles, not Including Goose Lake Basin. 

Records available.- November 1925 to September 1940. 

Average discharge.- 14 years (1926-40), 6,474 second-feet.

Extremes.- Maximum discharge during year, 182,000 second-feet Feb. 28 (gage height, 38.2 

feet), from rating curve extended above 70,000 second-feet on basis of velocity-area 

studies and logarithmic plotting; minimum, 2,880 second-feet Sept. 2 (gage height, 

1.07 feet); minimum gage height, 0.98 foot Oct. 20.

1925-40: Maximum discharge, that of Feb. 28, 1940; minimum, 2.290 second-feet 

Oct. 4, 1934.

Remarks.- Records excellent. Flow regulated by storage and many diversions In Pit River 

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7 

9 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oot.

3,080 

3,000 

2,990 

3,040 

3,060

3,160 

3,220 

3,200 

3,120 

3,110

3,060 

3,010 

3,060 

3,140 

3,140

3,050 

3,040 

3,050 

3,040 

2,990

3,000 

3,050 

3,110 

3,370 

3,410

3,260 

3,230 

3,150 

3,100 

3,080 

3,090

HOT.

3,150 

3,150 

3,140 

3,080 

3,080

3,100 

3,100 

3,150 

3,190 

3,180

3,160 

3,150 

3,110 

3,100 

3,110

3,170 

3,160 

3,150 

3,100 

3,090

3,110 

3,140 

3,150 

3,120 

3,170

3,410 

3,310 

3,230 

3,150 

3,110

Dec.

3,110 

3,160 

3,200 

3,270 

3,170

3,140 

3,150 

3,520 

14,100 

22,400

16,000 

7,710 

6,030 

5,260 

4,580

4,240 

4,860 

4,580 

4,340 

4,230

4,090 

3,940 

3,900 

3,810 

3,820

3,700 

3,580 

3,720 

3,940 

4,720 

8,240

Jan.

20,000 

31,400 

22,000 

27,500 

17,000

12,900 

11,700 

19,700 

36,800 

34,900

24,600 

17,400 

13,900 

11,800 

10,200

9,080 

8,200 

7,210 

6,670 

6,420

6,120 

5,920 

5,850 

6,350 

14,100

32,000 

24,300 

16,800 

13,700 

11,900 

10,900

Feb.

9,800 

9,500 

28,000 

30,400 

27,000

30,200 

27,200 

21,100 

17,700 

15,000

13,100 

11,900 

12,300 

13,100 

12,000

11,200 

21 ,800 

17,300 

14,600 

12,200

11,100 

10,600 

10,200 

11,000 

20,800

46 ,300 

120,000 

159,000 

89,200

Month

Oct 

Hoi 

Dec

C

Jan 

Pel 

Mar 

Apr 

May

JUD 

Jill

Aug 

Ses

«

uary

ater year 1939-4

Mar.

56,200 

41 i 300 

31,700 

25,900 

22,100

19,700 

17,500 

16,200 

15,100 

13,800

13 ,400 

12,400 

11,500 

11,100 

10,300

10,500 

9,800 

8,800 

8,760 

9,240

8,930 

8,760 

8,600 

8,820 

10,000

21,400 

24,400 

19 ,800 

51 ,800 

.92,100 

64,100

Apr.

40 ,800 

31,000 

27,300 

26,200 

22,900

20,100 

20,200 

20,200 

19,200 

17,700

16 ,000 

15,400 

14,400 

13,700 

13,000

12,400 

11,900 

11,200 

11,000 

10,600

10,200 

9,940 

9,850 

9,240 

9,480

9,000 

8,680 

8,500 

8,140 

7,900

Secondfoot-days

96 ,410 

94,520 

171,510

1,658,770

497,320 

833,600 

684,010 

466,130 

208,970 

135,590 

112,380 

102,650 

100 ,070

3,503,160

May

7,660 

8,020 

8,240 

8,840 

8,700

8,100 

7,920 

7,920 

7,780 

7,720

7,560 

7,090 

6,840 

6,540 

6,540

6,690 

6,650 

6,440 

6,250 

5,910

5,840 

5,910 

5,890 

5,670 

5,540

5,500 

5,400 

5,340 

5,200 

5,430 

5,840

MQV<^lflWH

3,410 

3,410 

22,400

33,800

36 ,800 

159,000 

92,100 

40,800 

8,840 

5,670 

3,920 

3,530 

3,590

159,000

June

5,640 

5,670 

5,360 

5,240 

5,160

4,980 

4,800 

4,760 

4,720 

4,620

4,520 

4,520 

4,520 

4,490 

4,370

4,340 

4,250 

4,230 

4,160 

4,330

4,340 

4,340 

4,210 

4,080 

3,990

3,970 

3,970 

4.0SO 

4,010 

3,980

July

3,920 

3,900 

3,850 

3,710 

3,710

3,710 

3,850 

3,720 

3,680 

3,880

3,820 

3,840 

3,680 

3,360 

3,260

3,540 

3,780 

3,810 

3,710 

3,600

3,340 

3,240 

3,530 

3,720 

3,640

3,600 

3,530 

3,240 

3,150 

3,490 

3,570

Minimum

2,990 

3,080 

3,110

2,660

5,850 

9,500 

8,600 

7,900 

5,200 

3,970 

3,150 

2,950 

2,920

2,920

Aug.

3,420 

3,450 

3,350 

3,180 

3,160

3,490 

3,530 

3,530 

3,530 

3,310

3,100 

3,110 

3,270 

3,460 

3,420

3,480 

3,260 

3,020 

3,120 

3,270

3,400 

3,350 

3,370 

3,240 

2,950

3,110 

3,280 

3,350 

3,450 

3,430 

3,260

Mean

3,110 

3,151 

5,533

4,545

16,040 

28,740 

22,060 

15,540 

6,741 

4,520 

3,625 

3,311 

3,336

9,571

Sept.

3,090 

2,920 

3,180 

3,590 

3,510

3,450 

3,320 

3,150 

3,130 

3,460

3,520 

3,450 

3,470 

3,250 

3,080

3,170 

3,470 

3,540 

3,540 

3,580

3,280 

3,020 

3,300 

3,470 

3,470

3,450 

3,510 

3,360 

3,130 

3,210

Run-off in 

acre-feet

191,200 

187,500 

340,200

3,290,000

986,400 

1,653,000 

1,357,000 

924,600 

414,500 

268,900 

222,900 

203,600 

198,500

6,948,000

Peak discharge.- Jan. 9 (5 a.m.) 42,400 sec.-ft,; Jan. 26 (10 a.m.) 35,300 sec.-ft.; Feb. 3 

(6 p.IT.) 39,100 sec.-ft.; Feb. 6 (3 p.m.) 35,000 sec.-ft.; Feb. 28 (9 a.m.) 182,000 see.-ft.; 

Mar. 30 (6 p.m.) 98,200 sec.-ft.

Note.- Discharge Feb. 28 to Mar. 5 computed from wire-weight gage readings.

9-252 February 1936

UNITED STATES DEPARTMENT OF THB INTERIOR 

Geological Survey
248 SACRAMENTO RIVER MAIN STEM

Sacramento River at Keswick, Calif.

Location.- Water-stage recorder, lat. 40°37', long. l££°£7 r , In SEiSEi sec. 17, T. 

32 N., R. 5 W., at Keswick, half a mile downstream from Spring Creek and 9 miles 

downstream fron Shasta dam, now under construction. Datum of £,ace Is 495.0 feet 

above mean sea level (revised).

Drainage area.- 6,700 square miles.

Records available.- October 1938 to September 1940.

Extremes.- Maximum discharge during year, 186,000 second-feet Feb. 28 (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, about 2,950 

second-feet Sept. 2, on basis of records for station at Kennett.

1938-40: Maximum discharge, that of Feb. 28, 1940; minimum, 2,730 second-feet 

Aug. 22, 1939.

Remarks.- Records excellent except those for periods of no gage-height record which 

are good. Flow regulated by storage reservoirs and many diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

S 

3 

4 

5

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.

3,140 

3,060 

3,060 

3,070 

3,110

3,200 

3,260 

3,260 

3,180 

3,170

3,130 

3,090 

3,110 

3,200 

3,190

3,120 

3,100 

3,120 

3,140 

3,070

3,080 

3,100 

3,160 

3,340 

3,430

3,290 

3,260 

3,200 

3,130 

3,110 

3,120

Hov.

3,170 

3,200 

3,200 

3,140 

3,150

3,170 

3,130 

3,230 

3,270 

3,260

3,250 

3,240 

3,200 

3,190 

3,210

3,250 

3,240 

3,230 

3,200 

3,190

3,180 

3,230 

3,220 

3,200 

3,210

3,470 

3,360 

3,270 

3,190 

3,150

Dec.

3,130 

3,160 

3,220 

3,290 

3,200

3,190 

3,200 

3,620

14,000 

21,900

17,600 

8,150 

6,300 

5,360 

4,680

4,320 

4,910 

4,680 

4,410 

4,300

4,130 

3,980 

3,920 

3,820 

3,820

3,700 

3,600 

3,730 

3,960 

4,790 

7,890

Jan.

17,300 

33,800 

24,300 

29 ,400 

17,800

13,200 

11,800 

18 ,400 

40,300 

38,400

26,200 

17,700 

13,800 

11 ,700 

10,200

9,200 

8,420 

7,520 

7,030 

6,680

6,390 

6,110 

6,050 

6,500 

15 ,000

33,700 

27,100 

18,100 

14,300 

12,400 

11,300

Feb.

10,300 

9,980 

27,400 

32,700 

28 ,700

29,900 

27,900 

21,300 

17,700 

15,400

13,300 

12,100 

12,700 

13,600 

12,600

11,700 

22,800 

18,200 

15,100 

12,700

11,600 

10,900 

10,600 

11,100 

18,900

42,700 

120,000 

160,000 

91,100

Month

Oct 

Hov 

Dec

C

Jan 

Feb 

Mar

Apr 

Kay 

Jun 

Jul 

Aug 

Sep

W

nary 

11.....................................

ater year 1939-4

Mar.

59 ,400 

43 ,400 

32,300 

26,700 

22,200

19 ,600 

17,600 

16,400 

15,400 

14,300

13 ,700 

12,700 

12,000 

11,500 

10,900

10,800 

10,300 

9,450 

9,150 

9,420

9,340 

9,150 

8,940 

8,860 

9,490

17,100 

23,700 

17,500 

47,500 

95,200 

70,000

Apr.

42,600 

32,000 

28,100 

26,900 

23,400

20,400 

19,800 

19,700 

18,700 

17,300

15,900 

15,200 

14,400 

13,700 

13,100

12,500 

12,100 

11,600 

11,200 

11,000

10,700 

10,300 

10,200 

9,880 

9,940

9,610 

9,230 

8,940 

8,660 

8,280

Seoondfoot-days

98,000 

96,650 

173,960

1,696,150

520,100 

842,980 

694,000 

475,340 

214,620 

139,390 

114,460 

103 ,870 

100,270

5,573,640

May

8,100 

8,010 

8,380 

8,510 

S,S90

8,360 

8,030 

7,920 

7,870 

7,760

7,670 

7,400 

7,160 

6,940 

6,750

6,750 

6,750 

6,680 

6,540 

6,360

6,120 

6,020 

6,000 

5,970

5,850

5,750 

5,670 

5,590 

5,510 

5,510 

5,800

Maximum

3,430 

3,470 

21,900

37,400

40,300 

160,000 

95,200 

42,600 

8,890 

5,830 

4,000 

3,540 

3,580

160, OO(l

June

5,300 

5,830 

5,690 

5,480 

5,350

5,190 

5,040 

4,950 

4,890 

4,830

4,610 

4,610 

4,610 

4,580 

4,460

4,430 

4,340 

4,310 

4,240 

4,420

4,430 

4,430 

4,290 

4,160 

4,070

4,050 

4,050 

4,100 

4,090 

4,060

July

4,000 

3,980 

3,860 

3,780 

3,730

3,780 

3,930 

3,790 

3,750 

3,960

3,900 

3,920 

3,750 

3,430 

3,330

3,640 

3,860 

3,890 

3,780 

3,670

3,410 

3,300 

3,600 

3,750 

3,660

3,640 

3,530 

3,300 

3,270 

3,600 

3,620

Minimum

3,060 

3,140 

3,130

2,750

6,050 

9.9BO 

8,860 

8,280 

5,510 

4,050 

3,270 

3,030 

2,980

2,980

Aug.

3,490 

3,520 

3,400 

3,230 

3,190

3,460 

3,540 

3,540 

3,530 

3,340

3,120 

3,120 

3,260 

3,480 

3,410

3,510 

3,310 

3,100 

3,150 

3,310

3,430 

3,420 

3,410 

3,320 

3,030

3,130 

3,350 

3,420 

3,520 

3,500 

3,330

Mean

3,161 

3,222 

5,612

4,647

16,780 

29,070 

22,390 

15,840 

6,923 

4,646 

3,692 

3,351 

3,342

9,764

Sept.

3,150 

2,980 

3,240 

3,580 

3,550

3,480 

3,360 

3,180 

3,130 

3,430

3,500 

3,460 

3,480 

3,290 

3,100

3,160 

3,430 

3,530 

3,540 

3,560

3,320 

3,040 

3,240 

3,460 

3,450

3,440 

3,490 

3,410 

3,140 

3,150

Run-off in 

acre-feet

194,400 

191,700 

345 ,000

3,364,000

1,032,000 

1,672,000 

1,377,000 

942,800 

425,700 

276,500 

227,000 

206,000 

198,900

7,089,000

Peak discharge.- Jan. 4 (10:30 a.m.) 35,600 sec.-ft.; Jan. 9 (8 a.m.) 46,500 sec.-ft.; Jan. 26 

(12 p.m.) 38,400 sec.-ft.; Feb. 3 (9 p.m.) 41,600 sec.-ft.; Feb. 28 (9:30 a.r.) 186,000 sec.-ft.; 

Har. 30 (5 p.m.) 100,000 sec.-ft.

Note.- No gage-height record June 11 to July 2, July 4-15, 17-23, 28, Aug. 1, 2, Aug. 27 to 

Sept. 3; discharge computed on basis of records for station at Kennett. Discharge computed from 

staff-gage readings July 3, 16, 24-27, 29-31.
SACRAMENTO RIVER MAIN STEM 249

Sacramento River near Red Bluff, Calif.

Location.- Water-stage recorder, lat. 40°13'55", long. 1E2°10'50", in SE£ sec. 34, T. 28

 N., R 3 W., at lower end of Iron Canyon, half a mile downstream from Sevenmile Creek 

and 4 miles northeast of Red Bluff. Datura of gage is 252.6 feet above mean sea level.

Drainage area.- 9,300 square miles, not including Goose Lake Basin.

Records available.- January 1902 to September 1940. April 1895 to June 1902, at site at 

Jellys Ferry7^2 miles upstream from Red Bluff..

Average discharge.- 44 years, 11,270 second-feet.

Kxtremes.- Maximum discharge during year, 291,000 seoond-feet Feb. 28 (gage height, 08.9

 feet), from rating curve extended above 200,000 second-feet by logarithmic plotting 

and on basis of velocity-area studies; mininum, 3,160 second-feet Oct. 13 (gage height, 

0.39 foot). J ^

1895-1940: Maximum discharge, that of Feb. 28, 1940; nlnlnum, 2,400 second-feet 

Aug. 13, 1931, Sept. 9, 1934.

Correction.- The correct figure of maximum discharge for flood of Feb. 3, 1909, is 252,000

 second-reet (revised). This figure vfas erroneously published in Water-supply Papers

843 (p. 199) and 861 (p. 258). 

Remarks.- Records excellent. Some storage and many diversions above station.

Rating tables, water year 1939-40 (gage height, in feet, 

Oct. 1 to Mar. 31

.5

1.0 

2.0

3

4

2,400

2,360

3,350

4,260

6,470

9,150

12,100

15,300

18,700

22,400

26,500

31,000

35,800

40,800

45,800

56,800

set

1.

1.

1.

2

3

4

, and disch

0

2

5

Apr

3

3

4

5

7

10

. 1 t

,200

,540

,100

,160

,760

,740

.arge, ii

o Sept.

5

6

7

S

9

i sec

30

14

18

22

26

31

ond-ff

,100

,000

,100

,440

,000

et)

Mote.- Same as preceding table 

above 9.0 feet.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3,330 

3,330 

3,260 

3,230 

3,250

3,420 

3,540 

3,490 

3,420 

3,350

3,320 

3,210 

3,200 

3,250 

3,330

3,320 

3,260 

3,260 

3,280 

3,260

3,210 

3,250 

3,300 

3,420 

3,940

3,750 

3,590 

3,500 

3,440 

3,400 

3,370

Hov.

3,380 

3,420 

3,400 

3,370 

3,350

3,350 

3,370 

3,380 

3,440 

3,470

3,450 

3,450 

3,490 

3,440 

3,440

3,560 

3,700 

3,740 

3,660 

3,610

3,610 

3,630 

3,650 

3,660 

3,660

3,790 

3,960 

3,830 

3,750 

3,660

Dec.

3,650 

3,650 

3,6SO 

3,770 

3,750

3,680 

3,660 

3,750 

11,100 

23,500

29 , 400 

13,100 

8,790 

7,210 

6,220

5,570 

5,660 

6,120 

5,660 

5,390

5,260 

5.0SO 

4,980 

4,910 

4,330

4,720 

4,660 

4,580 

5,060 

6,700 

14,700

Jan.

30,800 

62,700 

44,800 

57,600 

33,100

22,500 

21,600 

33,600 

50,700 

52,300

45,000 

28,900 

21,500 

17,700 

15,200

13,200 

11,300 

10,600 

9,720 

9,150

8,730 

3,320 

3,130 

8,320 

26,600

77,600 

48,600 

29,700 

22,100 

13,700 

16,700

Feb.

15,300 

14,100 

25,900 

50,300 

45,400

42,700 

43,000 

32,700 

26,300 

22,900

19,700 

17,600 

18,400 

33,300 

21,900

18,700 

40,400 

36,700 

25,100 

20,500

18,200 

16,800 

16,000 

15,600 

21,800

38.400 

150,000 

261,000 

173,000

Honth

Dot 

Hoi

Dec

C

Jan 

Fel 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year 1939......................

11.....................................

"USfc ........ . *

ater year 1939-4

Mar.

97,300 

69,500 

54,200 

43,900 

36,100

31,500 

28,200 

25,700 

23,900 

22,000

20,600 

19,400 

18,200 

17,200 

16,600

16,000 

15,800 

14,400 

13,700 

13,800

13,500 

13,100 

12,300 

12,700 

14,500

19,600 

41,200 

30,800 

55,200 

131,000 

149,000

Apr.

75,600 

51,800 

42,300 

43,200 

36,500

31,700 

29,800 

31,000 

29 , 400 

26,800

24,700 

22,500 

21,600 

20,200 

19,400

13,200 

17,200 

16,400 

15,600 

15,200

14,700 

14,000 

13,700 

13,200 

13,500

13,200 

12,500 

11,900 

11,500 

11,000

Secondfoot-days

104,480 

106,570 

222,790

1,954,610

365,970 

1,236,700 

1,091,400 

718,800 

273,960 

159,080 

121,960 

109,110 

109,460

5,170.330

May

10,600 

10,500 

12,100 

12,400 

13,600

11,600 

10 , 700 

10,500 

10,300 

10,100

9,920 

9,440 

3,990 

8,600 

3,320

8,320 

8,320 

3,120 

7,930 

7,650

7,230 

7,200 

7,230 

7,090 

6,370

6,740 

6,600 

6,500 

6,370 

6,530 

7,430

Mq-y^Pfl1*?

3,940 

3,960 

29 , 400

33,200

77,600 

261,000 

149,000 

75,600 

13,500 

7,200 

4,360 

3,760 

3,990

261,000

June

7,120 

7,200 

6,760 

6,430 

6,300

6,060 

5,780 

5,660 

5,620 

5,500

5,330 

5,280 

5,260 

5,210 

5,090

5,050 

4,940 

4,870 

4,790 

4,900

4,940 

4,870 

4,310 

4,640 

4,510

4,430 

4,360 

4,400 

4,470 

4,450

July

4,360 

4,320 

4,260 

4,140 

4,080

4,030 

4,100 

4,140 

4,040 

4,080

4,140 

4,120 

4,080 

3,850 

3,610

3,650 

3,910 

4,080 

4,060 

3,950

3,800 

3,580 

3,610 

3,910 

3,950

3,850 

3,320 

3,670 

3,420 

3,520 

3,7SO

Minimum

3,200 

3,350 

3,650

2,700

3,130 

14,100 

12,700 

11,000 

6,370 

4,360 

3,420 

3,220 

3,280

3,200

Aug.

3,760 

3,590 

3,650 

3,510 

3,390

3,440 

3,720 

3,720 

3,720 

3,670

3,440 

3,320 

3,340 

3,540 

3,610

3,580 

3,650 

3,400 

3,250 

3,390

3,460 

3,540 

3,540 

3,540 

3,370

3,220 

3,400 

3,520 

3,530 

3,670 

3,530

Mean

3,370 

3,556 

7,137

5,355

27,930 

44,370 

35,210 

23,960 

8,837 

5,303 

3,934 

3,520 

3,649

14,130

Sept.

3,420 

3,300 

3,230 

3,700 

3,910

3,800 

3,720 

3,540 

3,420 

3,490

3,720 

3,720 

3,740 

3,680 

3,490

3,390 

3,530 

3,390 

3,990

3,930

3,330 

3,560 

3,420 

3,680 

3,780

3,780 

3,330 

3,320 

3,610 

3,440

Run-off In 

acre-feet

207,200 

211,600 

441,900

3,876,900

1,713,000 

2,552,000 

2,165,000 

1,426,000 

543,400 

315,500 

241,900 

216,400 

217,100

10,256,000

Peak discharge.- Jan. 2 (8:30 a.m.) 71,000 sec.-ft.; Jan. 4 (9 a.m.) 70,600 sec.-ft.; Jan. 26 

(7 a.m.) 89,500 sec.-ft.; Feb. 17 (5 p.m.) 59,400 sec.-ft.; Feb. 23 (2 p.m.) 291,000 sec.-ft.; Mar. 

31 (3 a.m.) 197,000 sec.-ft.

400454 0-41-17

.9-252 February 1936

UNITED STATES DEPARTMENT OP THE IHTERIOR 

Geological Survey
250 SACRAMENTO RIVER MAIN STEM

Sacramento River at Butte City, Calif.

Location.- Water-stage recorder, lat. 39°27'35", long. 121°59'35n , in NEi sec. 32, T. 19 

N., R. 1 W., half a mile south of Butte City. Zero of gage is set to datura of Corps 

of Engineers, U. S. Army.

Records available.- April 1921 to October 1940 (low-water periods only) in reports of 

Geological Survey. 1914-17, 1920-21, 1929-40 (gage heights for high-water periods) 

in reports of Division of Water Resources, Department of Public Works, State of 

California.

Extremes.- Minimum discharge during period June to October 1940, 1,890 second-feet Aug. 

27 (gage height, 69.41 feet).

1921-40: Minimum discharge recorded, 1,050 second-feet July 15, 25, 26, 1931 (gage 

height, 67.49 feet).

Remarks.- Records good except those for June 23 to July 3, which are fair. Storage and 

many diversions above station for irrigation.

Discharge, in second-feet, 1939-4O

Day

1

2

S

4

S

6

7

S

9

10

11

IS

13

14

15

16

17

IS

19

SO

81

88

83

84

85

86

87

88

89

30

31

Oct.

3,040

3,140

3,180

3,160

3,150

3,260

3,340

3,630

3,640

3,400

3,280

3,210

3,160

3,060

3,100

3,210

3,240

3,220

3,210

3,200

3,100

3,100

3,160

3,210

3,300

3,600

3,640

3,510

3,460

3,390

3,340

Month

1939 

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

1940

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

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

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

The perioa. .............................

Seoondfoot-days

101,640

144,260

83,370

65,010

36, 160

119,160

-

June

7,140

7,360

7,120

6,900

6,530

6,260

6,020

5,670

5,360

5,190

4,960

4,760

4,660

4,540

4,420

4,260

4,160

4,060

3,960

3,850

3,870

3,940

3,880

3,810

3,740

3,69O

3,630

3,660

3,610

3,450

Mo^iminfr

3,640

7,360

3.38O

2 240 sUeo

7,620

-

July

3,380

3,340

3,290

3,210

3,140

2,930

2,780

2,830

2,880

2,800

2,760

2,830

2,800

2,830

2,730

2,570

2,460

2,650

2,670

2,660

2,620

2,560

2,330

2,280

2,390

2,400

2,39O

2,350

2,290

2,160

2,110

Aug.

2,240

2,240

2,170

2,200

2,180

2,080

2,020

2,150

2,180

2,170

2,180

2,070

1,960

1,940

2,020

2,100

2,110

2,230

2,150

2,060

1,970

2,040

2,080

2,090

2,100

2,030

1,910

1,970

2,070

2,120

2,180

Sept.

2,170

2,

2,(

2,

L1O

340

)30

2,250

2,500

2,1 2,e

g

520

>00

520

2J 480

2,490

2,

2,!

2» c

750

310

10

3,010

2,930

2, c

3, 3,:

)30

380

500

3,430

3,460

3,'

3,J

3,

160

J60

)50

3,220

3,340 3,:

3,C

Z,'

3,:

Minimum Mean

3 040 3 279

' '

3,460 4,809

S f 110 2 f 689

1,910 2,097

2,030 2,872

3,160 3,844

-

570

580

150

520

Oct.

3,3SO

3,480

3,300

3,380

3,530

3,56O

3,420

3,160

3,220

3,370

3,400

3,370

3,340

3,190

3,180

3,270

3,340

3,380

3,480

3,460

3,370

3,810

3,160

3,700

5,360

7,620

5,780

6,060

4,560

4,940

5,190

Run-off in 

acre-feet

201,600

286, 100

165,400

128,900

170,900

236,400

987,700
SACRAMENTO RIVER MAIN STEM 

Sacramento River at Colusa, Calif.

251

Location.- Water-stage recorder, lat. 39°12'50", long. 121°rj9'55n , at north end of Jlmeno 

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 1940 (low-water periods only) in reports of 

tJeologlcal Survey. 1920-40 (gage heights for high-water periods) in reports of Divisionof Water Resources, Department of Public Works, State of California.

Extremes.- Minimum discharge during period June to October 1940, 2,020 second-feet Aug. 

28~Tgage height, 37.38 feet).

1921-40: Minimum discharge recorded, 820 second-feet July 25, 26, 1931 (gage 

height, 34.79 feet).

Remarks.- Records excellent except those for period of no gage-height record, which are 

good. Flow regulated by storage and nany diversions above station for irrigation.

Discharge, in second-feet, 1939-40

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

51

Oct.

3,070

3,120

3,190

3,200

3,200

3,250

3,300

3,450

3,650

3,600

3,400

3,290

3,260

3,230

3,150

3,200

3,260

3,290

3,280

3,270

3,250

3,190

3,200

3,240

3,270

3,410

3,640

3,610

3,530

3,460

3,400

Month

1939

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

1940

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

Augus t .............. ......................

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

The period.. ............................

Seoondfoot-days

102,860

147,530

83,150

67,810

86 , 690

119 180 '

-

June

7,020

7,510

7,280

7,110

6,690

6,350

6,140

5,810

5,450

5,240

5,060

4,910

4,780

4,700

4,620

4,540

4,420

4,330

84,200

a4,000

4,020

4,080

4,010

3,950

3,830

3,690

3,530

3,460

3,370

3,380

-

Maximum

3,650

7,510

3,340

2,310

3,430

7 ' 000

-

July

3,340

3,260

3,170

3,160

3,090

3,050

2,900

2,860

2,380

2,300

2,680

2,740

2,740

2,770

2,740

2,570

2,440

2,450

2,560

2,620

2,620

2,560

2,420

2,330

2,370

2,420

2,410

2,420

2,360

2,230

2,190

Aug.

2,260

2,310

2,260

2,260

2,280

2,210

2,200

2,200

2,250

2,260

2,260

2,220

2,160

2,110

2,090

2,120

2,140

2,190

2,130

2,140

2,110

2,120

2,170

2,180

2,190

2,180

2,130

2,040

2,130

2,200

2,260

Sept.

2,280

2,£

2,3

2,]

20

90

SO

2,240

2,490

2,E2,e

2,6

90

30

30

2,580

2,570

2,6

2,1

2,£

90

50

00

3,020

3,010

2,6

3,C

3,£

60

40

00

3,390

3,420

3,4

3,2

3,1

30

10

10

3,100

3,270 3,;

3,2

3,2

3,2

Minimum Mean

3,070 3,318

3,370 4,918

2,190 2,632

2 040 2 187

2,180 2,890

3,160 3,845

-

20

3D

SO

60

Oct.

3,260

3,500

3,480

3,400

3,520

3,530

3,530

3,320

3,260

3,400

3,460

3,420

3,420

3,300

3,130

3,260

3,370

3,390

3,470

3,500

3,430

3,270

3,160

3,440

4,240

7,000

6,430

5,390

4,820

4,740

5,220

Run-off in 

aore-feet

204,000

292,600

164,900

134 500

171^900

236,400

1,000,000

a No gage-height record; discharge computed on basis of records for station at Butte City.
252 SACRAMENTO RIVER MAIN STEM

Sacramento River below Wilkins Slough, Calif.

Location.- Water-stage recorder, lat. 39°00'35", long. 121°49'25", In Jlmeno grant, 1,500

feet downstream from Wilklns Slough, 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 1940 (low-water periods only) In reports of 

Geological Survey. 1931-40 (gage heights for high-water periods) In reports of Division of Water Resources, Department of Public Works, State of California.

Extremes.- Minimum discharge recorded during period June to October 1940, 1,280 secondfeet Aug. 13 and 14 (gage height, 19.53 feet), probably lower on Aug. 15.

1931-40: Minimum discharge recorded, 100 second-feet Aug. 1, 1931 (gage height, 

14.20 feet).

Remarks.- Records excellent except those for period of no gage-height record, which are 

good. Flow regulated bv storage and many diversions above station for Irrigation.

Rating table for period June 1 to Oct. 31, 1940 (gage height, in feet, and discharge, 

in second-feet)

19.5

20.0

20.5

21.0

21.5

1,270

1,470

1,670

1,890

2,130

22.0

22.5

23.0

24.0

25.0

2,410

2,710

3,020

3,670

4,320

26.0 4,970

27.0 5,620

28.0 6,300

29.4 7,280

Discharge, in second-feet, 1939-40

Day

1

2

Z

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

25

24

25

26

27

28

29

SO

31

Oct.

3,090

3,160

3,180

3,220

3,210

3,220

3,300

3,420

3,630

3,640

3,470

3,340

3,270

3,210

3,130

3,160

3,240

3,270

3,260

3,250

3,230

3,160

3,180

3,220

3,270

3,360

3,600

3,630

3,550

3,510

3,420

Month

1939

1940

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

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

The period...... ........................

June

6,550

7,160

7,270

7,130

6,7SO

6,390

6,100

5,S30

5,480

5,150

4,8SO

a4,800

a4,600

a4,400

a4,300

a4,200

a4,000

a3,900

a3,700

a3,600

3.410

3,440

3,420

3,380

3,300

3,050

2,870

2,690

2,520

2,520

fOTt^ys "a** *

102,800 ' 3,640

58 t 770 2,520

43,820 1,540

80, S30 3,570

122,180 6,590

-

July

2,520

2,410

2,340

2,210

2,210

2,160

2,100

2,050

2,OSO

2,070

1,940

1,920

1,950

1,950

1,9SO

1,8SO

1,690

1,600

1,670

1,800

1,850

1,890

1,790

1,630

1,560

1,630

1,620

1,640

1,640

1,530

1,460

Aug.

1,440

1,540

1,530

1,490

1,520

1,460

1,360

1,330

1,450

1,470

1,470

1,470

1,370

al,310

al,310

al,310

al,350

al,390

al,470

al,470

al,350

al,350

1,370

1,380

1,410

1,450

1,440

1,330

1,320

1,410

1,500

Sept.

1,560

1,E

1,6

1,E

90

00

80

1,550

1,700

1,9

2,1

2,J

70

40

00

2,410

2,260

2,2

2,E

2,6

70

10

60

2,860

2,930

3,C

3,C

3,2

60

70

20

3,390

3,500

3,E

3,E

3,3

70

10

10

3,160

3,240

3,4

3,4

3,E

3,E

m«4nnim Mean

3,090 3,316

2,520 4,561

1,460 1,896

1,310 1,414

1,550 2,694

3,370 3,941

-

00

70

10

30

Oct.

3,420

3,450

3,600

3,510

3,550

3,640

3,660

3,560

3,370

3,420

3,560

3,600

3,600

3,570

3,420

3,400

3,530

3,600

3,670

3,760

3,750

3,620

3,510

3,550

3,990

5,410

6,590

5,770

5,300

4,800

5,000

Run-off in 

acre-feet

203,900

271,400

116,600

86,920

160,300

242,300

877,500

a No gage-height record; discharge computed on basis of records for station at Coluaa.
SACRAMENTO RIVER MAIN STEM 253

Sacramento River at Knights Landing, Calif.

Location.- Water-stage recorder, lat. 38°48'10", long. 121°42'55", in NEi sec. 14, T. 

11 N., R. 2 E., Just upstream from Southern Pacific Railroad bridge at Knights LandIng. Zero of gage is set to datum of Corps of Engineers, U. S. Army.

Records available.- April 1921 to October 1940 (low-water periods only) in reports of 

Geological survey. 1926-40 (gage heights for high-water periods) in report of Division of Water Resources, Department of Public Works, State of California.

Extremes.- Minimum discharge during period June to October 1940, 1,490 second-feet Aug. 

16 (gage height, 10.99 feet).

1921-40: Minimum discharge recorded, 250 second-feet July 23, 1931 (gage height, 

7.80 feet).

Remarks.- Records good. Flow affected by reservoirs, many diversions for irrigation, 

and return water. Backwater from Feather River taken into account in computing records for the period June 1 to Oct. 31.

Discharge, in aecond-feet, 1939-40

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

80

51

Oct.

3,370

3,400

3,460

3,510

3,540

3,550

3,580

3,670

3,780

3,740

3,680

3,550

3,430

3,360

3,360

3,310

3,300

3,310

3,330

3,330

3,350

3,310

3,250

3,220

3,270

3,420

3,590

3,730

3,610

3,540

3,480

Month

1939

1940

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

The period......... .....................

Seoondfoot-days

107,330

143,760

66,120

54,590

96, 620

125,950

-

June

6,840

7,750

3,480

3,160

7,630

7,140

6,680

6,320

5,790

5,250

4,800

4,530

4,410

4,270

4,120

4,070

4,020

3,890

3,810

3,630

3,590

3,490

3,520

3,460

3,500

3,250

3,050

2,880

2,790

2,640

-

Maximum

3f 780

8,480

2,660

2,050

3,960

6 » 810

-

July

2,660

2,580

2,480

2,480

2,360

2,320

2,290

2,260

2,240

2,320

2,240

2,140

2,180

2,180

2,200

2,180

1,960

1,790

1,800

1,950

2,040

2,190

2,180

2,030

1,870

1,850

1,870

1,880

1,930

1,890

1,780

Aug.

1,700

1,760

1,830

1,800

1,830

1,840

1,770

1,690

1,720

1,820

1,830

1,830

1,780

1,640

1,540

1,530

1,630

1,710

1,810

1,850

1,740

1,620

1,670

1,730

1,790

1,850

1,860

1,770

1,740

1,860

2,050

Sept.

2,220

2,£

2,J

2,f

:oo

240

ISO

2,180

2,300

2,i

2,£

3,]

>80

360

70

3,210

3,070

3,C

3,C

3,£

)30

)90

60

3,610

3,530

3,.

3,. 3, r

560

>90

rso

3,700

3,800

3,S

3,£

3,«

60

)30

50

3,570

3,410

3,« 3, r

3,S 3, r

M4n<mnm Mean

3,220 3,462

2,640 4,792

1,780 2,133

1,530 1,761

2,180 3,221

3,420 4,063

-

50

'30

00

'80

Oct.

3,670

3,570

3,700

3,660

3,620

3,680

3,680

3,630

3,420

3,430

3,610

3,710

3,730

3,720

3,640

3,540

3,600

3,860

3,990

3,550

3,930

3,850

3,730

3,660

3,940

4,900

6,810

6,320

5,690

5,060

5,050

Run-off in 

acre-feet

212,900

285,100

131,100

108 300

191,600

249,800

965,900
254 SACRAMENTO RIVER MAIN STEM

Sacramento River at Verona, Calif.

Location.- Water-stage recorder, lat. 38°46'50", long. 121°36'15", In SEi sec. 23, T. 11 

N., R. 3 E., three-quarters of a mile southeast of Verona and 1 mile downstream from 

Feather River. Zero of gage Is set to datuti of Corps of Engineers, U. S. Army.

Drainage area.- 21,400 square miles, excluding that of Goose Lake Basin.

Records available.- May 1926 to September 1940 (1926-29, low-water periods only).

Average discharge.- 11 years (1929-40), 15,230 second-feet.

Extremes.- Maximum discharge during year, 79,200 second-feet Mar. 1 (gage height, 41.20 

feet); minimum, 2,230 second-feet Aug. 16 (gage height, 8.37 feet).

1926-40: Maximum discharge, that of Mar. 1, 1940; minimum, 281 second-feet July 

24, 1931 (gage height, 6.93 feet).

Remarks.- Records good. Stage at Verona slightly affected by tide during periods of 

lowest flow, July to September. Storage, many diversions, and considerable return 

water affect flow. When discharge Is larger than about 55,000 second-feet, unmeasured 

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 1939 to September 1940

Day

I 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5,040 

4,940 

5,020 

5,170 

5,220

5,250 

5,330 

5,480 

5,540 

5,180

5,240 

5,030 

4,940 

4,850 

4,940

4,720 

4,490 

4,490 

4,660 

4,620

4,720 

4,680 

4,520 

4,340 

4,390

4,850 

5,040 

5,120 

5,020 

4,790 

4,740

Hov.

4,870 

4,810 

4,790 

4,620 

4,540

4,460 

4,360 

4,300 

4,490 

4,560

4,720 

4,730 

4,610 

4,420 

4,390

4,760 

5,040 

5,180 

5,370 

5,290

5,040 

5,020 

5,110 

5,290 

5,240

5,080 

5,120 

5,210 

5,440 

5,520

Dec.

5,4SO 

5,460 

5,580 

5,330 

5,310

5,870 

6,100 

6,360 

6,360 

6,640

9,570 

19,700 

24,600 

21,500 

16,300

13,200 

11,500 

9,800 

8,890 

9,080

9,070 

8,870 

8,420 

8,250 

7,800

7,500 

7,230 

7,340 

7,490 

7,600 

7,980

Jan.

9,230 

17,400 

34,700 

42,400 

46,800

51,100 

53,700 

54,600 

55,800 

57,900

58,800 

58,400 

58,600 

57,800 

55,900

53, 500 

50,000 

44,900 

38,900 

33,400

29,300 

25,200 

22,100 

20,300 

19,300

26,400 

41,800 

52,900 

57,300 

57,400 

56,200

Feb.

54,600 

52,200 

49,100 

48,100 

51,300

55,800 

57,200 

58,000 

58, 100 

57,400

56,500 

55, 200 

53,300 

53,200 

54,900

55,000 

54,000 

54,000 

54,600 

54,800

54,900 

53,800 

51,400 

47,900 

45,900

47,200 

53,200 

68,400 

75,200

Month

Oct 

Hot 

Dec

C

Jan 

Pet 

Mar 

Apr 

Mas 

Jim 

Jul 

Aug 

Sep

«

uary

11.....................................

ater year 1939-4

Mar.

76,300 

69 , 600 

69,500 

69,100 

66,300

64,100 

62,200 

60,700 

59,500 

58,600

57,700 

56,500 

55,400 

53,800 

51,000

48, 500 

45,800 

43,300 

40,900 

38,200

36,100 

34,500 

33,400 

32,600 

32,000

33,400 

42,400 

56,300 

57,900 

61,100 

70, 100

Apr.

69,700 

68,400 

67,500 

66,000 

64,300

62,700 

61,200 

60,200 

59, 400 

58,700

58,000 

57, 500 

56,700 

56,600 

56,300

54,700 

53,100 

51,500 

49,900 

48,300

46,600 

44,500 

43,100 

42, 500 

41,300

39,400 

37,700 

36,100 

34,700 

33,300

Seoondfoot-days

152,410 

146,380 

290,120

2,726,828

1,342,030 

1,585,200 

1,636,800 

1,579,900 

707,900 

272,910 

104,340 

82, 750 

154,020

8,054,760

May

31,500 

29,300 

28,200 

29,800 

31,000

31,200 

30,200 

27,900 

25,900 

25,600

26,000 

26,400 

26,400 

25,800 

24,500

23,400 

22,000 

21,200 

20,600 

19,200

17,800 

17,700 

18, 100 

17,800 

17,300

17,200 

16,200 

15,400 

14,700 

14,800 

14,800

Maximum

5,540 

5,520 

24,600

30, 200

58, 800 

75,200 

76,300 

69,700 

31,500 

17,800 

4,450 

3,150 

6,440

76,300

June

16,100 

17,800 

17,300 

16,300 

15,000

14,300 

13,300 

12,600 

11,900 

10, 700

9,300 

9,100 

S,730 

8,150 

7,400

7,010 

6,630 

6,080 

6,300 

6,220

6,080 

5,850 

5,940 

5,540 

5,270

5,030 

4,980 

4,840 

4,640 

4,520

July

4,450 

4,310 

4,190 

4,290 

3,970

3,370 

3,920 

3,740 

3,630 

3,640

3,530 

3,420 

3,420 

3,580 

3,350

3,330 

3,150 

2,970 

2,870 

2,910

3,120 

3,050 

3,170 

3,000 

2,840

2,790 

2,730 

2,790 

2,790 

2,790 

2,680

Minimum

4,340 

4,300 

5,310

965

9,230 

45,900 

32,000 

33,300 

14,700 

4,520 

2,680 

2,400 

3,250

2,400

Aug.

2,590 

2,570 

2,650 

2,800 

2,630

2,630 

2,530 

2,410 

2,450 

2,520

2,710 

2,630 

2,600 

2,510 

2,410

2,400 

2,480 

2,800 

2,740 

2,750

2,620 

2,600 

2,710 

2,770 

2,970

2,840 

2,880 

2,660 

2,770 

2,970 

3,150

Mean

4,916 

4,879 

9,359

7,471

43,290 

54,660 

52, 800 

52,660 

22, 840 

9,097 

3,366 

2,669 

5,134

22,010

Sept.

3,590 

3,520 

3,290 

3,250 

3,300

3,560 

4,020 

4,810 

5,050 

4,810

4,870 

5,020 

5,050 

5,240 

5,970

5,680 

5,640 

5,850 

6,060 

6,060

6,120 

6,440 

5,980 

5,810 

5,780

5,720 

5,750 

5,780 

6,090 

5,910

Run-off in 

acre-feet

302,300 

290,300 

575,400

5,408,000

2,662,000 

3,144,000 

3,247,000 

3,134,000 

1,404,000 

541,300 

207, 000 

164,100 

305,500

15,980,000

9-252 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
PIT RIVER BASIN 255

Pit River near Canby, Calif.

Location.- Water-stage recorder, lat. 41°24', long. 120°55', in SWt sec. 10, T. 41 N., R. 

9 E., at lower end of Warm Spring Valley, about 4 miles southwest of Canby. Altitude 

of gage, about 4,300 feet (from topographic map).

Drainage area.- 1,430 square miles, excluding that of Goose Lake Basin.

Records available.- January 1904 to December 1905, May 1929 to September 1940 (1929-31 

incomplete).

Extremes.- Maximum discharge during year, 4,280 second-feet probably Feb. 28 (gage height, 

8.72 feet from floodmarks in well); minimum, 3.5 second-feet Oct. 22, 23.

1904-5, 1929-40: 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 no gage-height record, which are fair. 

KIOW regulated by storage and many diversions above station for Irrigation.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in aecond-feet)

(Shifting-control method used Aug. 19 to Sept. 30)

2.0

2.1

2.2

2.3

3.0

5.5

9.5

17

30

2.6 

2.8 

3.0 

3.3 

3.6

125

205

350

510

3.9 

4.2 

4.6 

5.0 

5.5

1,110

1,370

1,710

6.0 

6.5 

7.0 

7.6 

8.2

2,060 

2,410 

2,800 

3,2SO 

3,810

Discllarge, In second-feet, water year October 1939 to September 1940

Day

1

2

Z

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

51

Oct.

8.5

8

7.5

7.5

7.5

7.5

7

6.5

6.5

5.5

5

4.8

4.5

4.2

4.0

3.S

3.8

3.8

3.8

3.8

3.8

3.5

3.5

8.5

29

32

54

49

56

67

51

Hov.

49

35

35

35

33

33

3S

38

37

35

33

33

33

33

32

52

32

30

29

27

27

44

27

27

26

29

25

25

25

25

Dec.

25

25

25

26

30

26

25

29

11B

98

107

98

79

74

62

56

58

56

51

45

42

40

38

38

29

32

33

38

49

82

95

Jan.

151

236

265

270

241

2J 8

175

151

171

214

228

265

232

136

98

90

82

67

72

72

69

72

77

79

85

270

310

385

375

£65

201

Feb.

171

151

171

250

a400

a750

aSOO

a700

a500

385

335

246

192

175

166

175

210

255

236

246

201

179

196

228

a260

a300

a3,000

a3.800

a3,400

_

-

Month

Calendar year 1939 ......................

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

**..... ..................................

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

Water year 1939-4 3. .....................

Mar.

a2,800

al,900

al,300

al.OOO

aSOO

609

499

390

310

285

295

255

228

218

205

196

192

171

171

155

144

132

125

132

147

175

360

a440

aSOO

a700

al,100

Apr.

al,500

956

1,010

938

806

668

526

411

370

350

325

300

275

246

22S

255

265

270

270

193

210

218

192

188

151

136

151

107

95

87

-

Seoondfoot-days

470.8

962

1,629

24,706.5

5,622

18,078

15,934

11,697

2,706

1,551

551.3

1,237.5

1,104

61,542.6

Nay

158

179

151

201

166

155

136

87

45

30

30

29

24

14

9

40

60

113

136

129

136

116

110

87

69

62

67

72

47

27

21

HcLXJJBUOl

67

49

118

854

385

3,800

2,800

1,500

201

107

45

144

175

3,800

June

25

35

40

35

30

26

SO

16

26

62

107

85

S5

95

98

92

72

54

54

38

25

24

25

27

30

26

44

98

85

72

-

July

45

30

25

35

30

32

26

22

27

25

22

20

20

17

16

16

15

15

14

13

14

15

m 7.5 * 5

5

7.5

4.8

5

6.5

7.5

8.5

Minimum

3.5

25

25

2.3

67

151

125

87

9

16

4.8

9

11

3.5

Aug.

9

10

13

16

9

9

9.5

14

16

18

18

17

14

14

12

55

136

144

140

113

85

72

62

47

38

30

26

25

25

21

20

Mean

15.2

32.1

52.5

67.7

181

623

514

390

87.3

51.7

17.8

39.9

36.8

168

Sept.

18

17

12

11

12

15

60

,125

175

101

54

37

30

25

20

21

16

14

14

14

14

16

26

37

40

40

40

35

35

30

-

Run-off in 

aore-feet

934

1,910

3,230

48,990

11,150

35,860

31,600

23,200

5,370

3,080

1,090

2,450

2,190

122,100

a No gage-height record; discharge computed on basis of records for Fit River at Fall River Hills 

and weather records.
256 PIT RIVER BASIN

Pit River at Fall River Mills, Calif.

Location.- Water-stage recorder, lat. 41°00', long. 121°26', In NEi sec. 6, T. 36 N., R.

 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 that of Goose Lake Basin.

Records available.- December 1922 to September 1940. March 1921 to December 1922, at 

site 0.7 mile upstrearn.

Average discharge.- 17 years (1923-40), 407 second-feet (not including flow of Fall River).

Extremes.- Maximum discharge during year, 16,900 second-feet Feb. 29 (gage height, 9.00 

reet); minimum, 48 second-feet Oct. 16.

1921-40: 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 A/T studies; minimum, 12 second-feet Aug. 5, 1926, Oct. 23, 1936.

Remarks.- Records good for discharges above 400 second-feet and fair below. Entire flow

 of 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 and results of four discharge measurements furnlsheci by

Rating

0

1

Pacific Gas & Electric Co.

ta

.4

.6

.8

.0

ble, water year

53

81

US

170

1.4

.1.8

2.2

2.6

1939-40

310

520

795

1,130

(gage

3.0

3.5

4.0

4.5

height.

1,550

2,190

2,950

3,820

In feet,

5.

5

6

6,

.0

.5

.0

.5

and discharge,

4,800

5,950

7,200

8,600

7.0

8.0

9.0

In second

10,100

13,350

16,900

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

S

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.

63

78

72

78

86

86

84

80

78

74

72

68

65

52

50

50

51

53

52

52

53

56

60

86

83

72

65

65

65

61

61

Hov.

60

70

86

90

91

104

116

100

98

96

96

96

98

98

100

96

93

93

95

96

93

91

91

95

98

98

98

98

98

98

Dec.

98

98

98

98

96

96

96

104

375

394

643

496

428

310

f248

a230

a215

a200

 a!90

a!85

a!80

f!79

167

164

150

140

137

140

148

167

241

Jan.

391

780

1,010

1,520

1,370

1,080

848

735

855

918

1,150

1,270

1,04.0

795

597

438

356

310

333

302

298

290

286

278

298

565

650

1,030

1,040

894

848

Feb.

735

624

578

836

1,720

1,960

2,190

2,120

1,730

1,370

1,110

950

825

788

742

788

1,010

1,120

1,040

950

848

795

832

950

1,260

2,050

5,780

11,800

15,600

-

Month

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

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

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

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

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

Hater year 1939-40. .................

Mar.

11,800

f8,150

a6,200

a4,800

a5,800

a3,000

a2,300

f 1,840

1,560

1,370

1,230

1,150

1,080

977

886

848

810

742

713

713

671

630

591

578

591

630

848

1,510

1,820

2,310

3,840

Apr.

4,600

3,940

2,950

2,460

f2,190

a2,000

al,700

al,600

al,500

al,350

al,180

f 1,080

977

870

840

802

735

692

692

685

650

571

472

478

520

460

433

381

391

356

Seoondfoot-days

2,071

2,830

6,511

61,422

22,575

63,101

67,988

37,555

9,006

5 401

2 ,913

2,427

2,659

225,037

Hay

241

234

252

294

376

520

539

449

381

298

207

164

142

137

217

315

306

294

298

270

263

282

294

278

270

259

306

286

282

278

274

Itayiimim

86

116

643

1,500

1,520

15,600

11,800

4,600

539

270

125

91

104

15,600

June

200

245

263

270

256

248

241

227

214

224

234

224

179

200

200

210

176

167

176

217

164

123

100

84

93

88

86

83

84

125

-

July

112

104

86

84

125

116

110

104

108

102

98

96

93

78

80

98

96

96

104

95

96

98

96

90

78

78

80

84

86

68

74

Minimum

50

60

96

49

278

578

578

356

137

83

68

58

54

50

Aug.

90

74

76

78

81

76

70

84

78

74

72

81

91

84

78

78

78

75

68

58

65

81

78

81

84

83

78

68

90

91

84

Mean

66.8

94.3

210

168

728

2,176

2,193

1,252

291

180

94.0

78.2

88.6

615

Sept.

83

83

81

78

75

81

88

81

81

90

88

75

54

76

95

95

90

93

95

95

95

95

95

98

98

95

102

104

100

100

-

Run-off in 

acre-feet

4,110

5,610

12,910

121,800

44,780

125,200

134,900

74,490

17,860

10,710

5,780

4,810

5,270

446,400

a No gage-height record; discharge interpolated.

f Discharge computed on basis of partly estimated gage-height record.
PIT RIVER BASIH 

Pit River at Big Bend, Calif.

257

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 1 mile 

upstream from Koek Creek. Altitude of gage, about 1,700 feet (from topographic map).

Drainage area.- 4,920 square miles, excluding that of Goose Lake Basin. 

Records available.- September 1910 to September 1940. 

Average discharge.- 29 years (1911-40), 2,807 second-feet.

Extremes.- Maximum discharge during year, 24,900 second-feet Feb. 29 (gage height, 14.80 

feet); minimum, 1,540 second-feet Aug. 25 (gage height, 7.62 feet).

1910-40: 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 July 9, 1925.

Remarks.- Records excellent. Flow regulated by storage, power plants, and many diversions 

above station; daily fluctuations usually reluced by automatic regulator at Pit No. 4 

dam.

Rating table, water year 1939-4O (gage height. In feet, and discharge, In second-feet)

7.7 

7.S 

S.O 

S.2 

8.4

1,640 

1,760 

2,O10 

2,230 

2,570

S.6 

8.S 

9.0 

9.3 

9.6

2,SSO 

3,200 

3,550 

4,110 

4,72O

10.0

10.5

11.0

11.5

12.0

5,630

6,970

S,45O

10,050

11,800

12.5

13.0

13.8

14.7

13,700

15,700

19,400

24,300

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

S

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,840

1,S1O

1,840

1,S60

1,880

1,920

2,010

2,010

1,960

1,930

1,890

1,880

1,940

2,000

1,940

1,930

1,890

1,910

1,370

1,840

1,890

1,940

2,010

2,130

2,140

2,080

2,020

1,960

1,920

1,930

1,940

HOT.

2,000

2,010

1,9SO

1,940

1,960

1,970

1,980

2,040

2,060

2,050

2,010

1,9SO

1,960

1,960

1,9SO

2,02O

2,010

1,980

1,960

1,960

1,970

2,010

1,930

1,980

2,000

2,000

2,010

2,000

1,930

1,920

-

Dec.

1,940

1,9SO

2,060

2,060

2,000

1,960

1,940

2,020

2,530

3,420

2,940

2,630

2,580

2,390

2,140

2,090

2,210

2,180

2,140

2,140

2,100

2,100

2,080

2,090

2,090

2,010

2,010

2,060

2,130

2,240

2,350

Jan.

2,540

3,O6O

3,660

4,020

3,940

3,960

3,940

3,710

3,770

3,860

3,680

3,770

3,840

3,590

3,100

2,930

2,570

2,290

2,270

2,340

2,280

2,310

2,350

2,450

2,580

3,420

3,920

3,590

3,590

3,640

3,510

Feb.

3,170

2,850

2,990

3,410

4,350

5,030

5,700

5,56O

5,610

4,370

3,340

3,810

3,730

3,62O

3,530

3,570

3,980

3,550

4,110

3,710

3,550

3,440

3,440

3,570

4,230

6,120

12,400

19,800

23,900

_

-

Month

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

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

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

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

Water year 1939-40. .....................

Mar.

19,600

15,100

11,600

9,790

8,000

6,910

6,090

5,680

5,070

5,010

5,050

4,640

4,170

4,190

3,750

3,920

3,300

2,960

3,480

3,730

3,550

3,340

3,230

3,280

3,4SO

3,650

4,530

4,900

6,750

7,430

9,540

Apr.

10,400

9,660

3,300

7,550

6,S9O

6,220

6,170

5,960

5,760

5,730

4,720

5,090

4,490

4,410

4,410

4,470

4,430

4,000

4,030

4,050

3,790

3,790

3,690

3,250

3,120

3,180

3,250

3,180

2,990

2,960

-

Seeondfoot-days

60,110

59,610

68,660

730,820

100,480

160,940

185,670

150,140

85,960

68,910

64,360

61,340

60,450

1,127,130

"ay

2,880

2,850

2,820

3,060

3,150

3,O6O

3,200

3,320

3,130

3,020

2,770

2,580

2,440

2,420

2,680

2,930

2,930

2,900

2,720

2,540

2,570

2,740

2,680

2,560

2,570

2,630

2,570

2,540

2,500

2,570

2,580

Hn-y^W1 "*1

2,140

2,060

3,420

3,940

4,020

23,900

19,600

10,400

3,320

2,530

2,340

2,210

2,250

23,900

June

2,580

2.58O

2,510

2,540

2,510

2,390

2.32O

2,390

2,380

2,290

2,280

2,310

2,350

2,230

2,250

2,210

2,180

2,110

2,140

2,250

2,360

2,350

2,220

2,130

2,100

2,100

2,200

2,250

2,200

2,150

July

2,150

2,150

2,080

2,010

2,090

2,170

2.22O

2,110

2,210

2,320

2,290

2,250

1,960

1,720

1,370

2,180

2,340

2,270

2,170

1,930

1,740

1,330

2,250

2,290

2,200

2,170

1,930

1,700

1,880

2,200

2,130

Minimum

1,810

1,920

1,940

1,540

2,270

2,350

2,960

2,960

2,42O

2,100

1,700

1,650

1,710

1,650

Aug.

1,970

2,040

1,360

1,720

1,880

2, ISO

2,180

2,180

2,100

1,320

1,720

1,810

2,100

2,140

2,140

2,130

1,SOO

1,710

1,390

2,040

2,090

2,080

2,040

1,770

1,650

1,910

2,040

2,140

2,210

2,110

1,S90

Mean

1,930

1,937

2,215

2,139

3,241

5,550

5,989

5,005

2,773

2,297

2,092

1,979

2,015

3,080

Sept.

1,740

1,710

1,960

2,210

2,110

2,050

1,370

1,780

1,930

2,200

2,180

2,140

2,020

1,780

1,720

2,000

2,200

2,220

2,250

2,170

1.S40

1,760

2,140

2,210

2,210

2,180

2,110

1,940

1,310

2,010

Run-off In 

acre-feet

119,200

118,200

136,200

1,548,000

199,300

319,200

368,300

297,800

170,500

136,700

128,600

121,700

119,900

2,236,000

Peak discharge.- Feb. 29 (10 a.m.) 24,900 sec.-ft.; Har. 31 (10:3O p.m.) 12,100 sec.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
258 PIT RIVER BASIN

Pit River near Ydalpoin, 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 mile downstream from Squaw Creek, li miles 

southwest of Ydalpoin ,and 4 miles upstream from McCloud River. Altitude of gage, about 

735 feet.

Drainage area.- 5,350 square miles, excluding Goose Lake Basin.

Records available.- May 1924 to September 1940. November 1910 to May 1924, at site 400 

feet downstream.

Average discharge.- 29 years (1911-40), 3,905 second-feet.

Extremes.- Maximum discharge during year, 56,000 second-feet Feb. 28 (gage height, 22.25 

feet); minimum, 1,690 second-feet Aug. 25 (gage height, 4.56 feet).

1910-40: Maximum discharge, 65,000 second-feet Dec. 10, 1937 (gage height, 24.20 

feet), from rating curve extended above 22,000 second-feet on basis of velocity-area 

and AVd studies; minimum, 1,000 second-feet (regulated) July 10, 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.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

3

4

S

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

81

22

23

24

25

26

27

28

29

SO

31

Oct.

2,020

1,960

1,960

2,000

2,020

2,O70

2,160

2,160

2,090

2,090

2,040

2,010

2,060

2,140

2,130

2,060

2,040

2,030

2,020

1,960

2,000

2,040

2,090

2,270

2,290

2,190

2,170

2,090

2,060

2,030

2,060

Sov.

2,100

2,130

2,120

2,030

2,070

2,090

2,090

2,140

2,170

2,160

2,140

2,130

2,070

2.O70

2,090

2,140

2,140

2,130

2,080

2,080

2,100

2,130

2,130

2,120

2,120

2,160

2,160

2,150

2,090

2,060

-

Dec.

2,070

2,120

2,170

2,220

2,140

2,100

2,100

2,410

5,360

5,850

5,120

3,330

3,100

2,860

2,510

2,370

2,640

2,510

2,440

2,410

2,390

2,330

2,320

2,290

2,320

2,250

2,190

2,280

2,390

2,670

3,960

Jan.

8,930

11,200

7,660

10,200

6,800

5,860

5,850

9,450

13,000

14,800

9,710

7,380

6,350

5,720

4,950

4,490

4,040

3,540

3,320

3,300

3,180

3,140

3,110

3,330

5,460

13,300

11,100

7,620

6,490

6,040

5,680

Feb.

5,100

4,780

10,200

12,400

12,300

14,100

12,700

10,500

9,410

7,660

6,670

6,350

6,660

7,050

6,480

6,080

9,950

7,820

7,380

6,420

5,990

5,740

5,600

6,170

9,150

19,600

46,700

51,400

40,900

-

Month

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

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

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

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

Water year 1939-4 3......................

Mar.

31,400

24,100

13,700

15,600

12,300

11,100

9,650

8,940

3,200

7,460

7,600

6,950

6,330

6,290

5,790

5,930

5,460

4,600

4,840

5,270

5,030

4,790

4,600

4,690

5,270

11,000

11,400

10,700

27,000

34,100

26,000

Apr.

19,700

16,400

13,300

12,300

11,300

10,100

9,930

9,650

9,270

8,800

7,710

7,880

7,140

6,320

6,650

6,510

6,360

5,860

5,790

5,660

5,440

5,280

5,220

4,720

4,490

4,520

4,490

4,460

4,190

4,090

-

Seoondf cot-days

64,300

63,440

85,720

951,410

215,000

361,260

351,590

235,030

111,310

80,080

70,500

65,310

64,460

1,768,500

May

3,980

4,140

4,090

4,570

4,590

4,270

4,250

4,330

4,200

4,030

3,780

3,470

3,320

3,200

3,340

3,590

3,640

3,590

3,470

3,170

3,140

3,320

3,320

3,160

3,090

3,160

3,090

3,070

3,020

3,160

3,210

Maximum

2,290

2,170

5,860

14,800

14,300

51,400

34,100

19,700

4,590

3,160

2,550

2,330

2,390

51,400

June

3,160

3,140

3,030

3,020

3,000

2,S90

2,760

2,310

2,790

2,710

2,670

2,680

2,720

2,670

2,600

2,560

2,500

2,470

2,430

2,560

2,670

2,670

2,550

2,450

2,380

2,370

2,420

2,520

2,460

2,420

-

July

2,390

2,390

2,320

2,210

2,290

2,300

2,430

2,320

2,300

2,550

2,460

2,480

2,240

1,920

1,920

2,270

2,500

2,480

2,330

2,220

1,930

1,920

2,360

2,500

2,360

2,340

2,190

1,910

1,900

2,330

2,340

Minimum

1,960

2,060

2,070

1,690

3,110

4,730

4,600

4,090

3,020

2,370

1,900

1,740

1,770

1,740

Aug.

2,130

2,190

2,070

1,900

1,920

2,300

2,320

2,320

2,300

2,030

1,830

1,850

2,150

2,230

2,220

2,320

1,930

1,300

1,960

2,110

2,220

2,190

2,190

1,970

1,740

1,930

2,150

2,190

2,330

2,300

2,070

Mean

2,074

2,115

2,765

2,607

6,935

12,460

11,340

7,834

3,607

2,669

2,274

2,107

2,149

4,332

Sept.

1,910

1,770

1,970

2,360

2,290

2,230

2,050

1,920

1,940

2,320

2,340

2,280

2,240

2,000

1,310

2,020

2,300

2,390

2,390

2,390

2,070

1,820

2,210

2,340

2,340

2,340

2,300

2,160

1,920

2,040

-

Run-off in 

acre-feet

127,500

125,800

170,000

1,887,000

426,400

716,500

697,400

466,200

221,800

158,800

139,800

129,500

127,900

3,508,000

Peak discharge.- Feb. 28 (1:30 a.m.) 56,000 sec.-ft. 

(4:30 p.m.) 377200 sec.-ft.

Mar. 26 (5 p.m.) 17,500 sec.-ft.j Mar. 30

9-232 February 1936

STATES DEPARTMENT OF THE IHTERIOR 

Geological Surrey
PIT RIVER BASIN 255 

South Fork of Pit River near Likely, Calif.

Location.- Water-stage recorder, lat. 41°14', long. 120°25', In NEi sec. 11, T. 39 N., 

R. 13 E., 1.3 miles downstream from West Valley Creek and 3i miles east of Likely. 

Altitude of gage, about 4,580 feet (from topographic map).

Drainage area.- 248 square miles.

Records available.- October 1928 to September 1940.

Extremes.- Maximum discharge during year, 233 second-feet May 12 (gage height, 3.31 

feet); minimum, 0.4 second-foot Feb. 19.

1928-40: Maximum discharge, 1,060 second-feet Apr. 27, 1332 (gage height, 5.55 

feet), from rating curve extended above 600 second-feet; minimum, that of Feb. 19, 

1940..

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.

Hating table, water year 1939-40, except periods of ice effect (gage height, In feet, 

and discharge, In second-feet)

1.2

1.3

1.4

1.5

0.5 

1.1 

£.0 

3.5

1.6 

l.V

1.8

1.9

6.0

10.5

15.5

21

2.0

2.1

2.2 

2.4

27

35

44

64

2.6 

2.8 

3.0 

3.2

120

157

204

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

Z

3

4

S

6

1

a

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

14

22

21

19

19

25

21

19

19

18

18

18

18

16

17

16

17

17

18

18

19

18

18

20

20

19

29

26

16

16

16

HOT.

16

16

17

12

9.5

8

8

7

7.5

6

7

6

9

12

14

15

12

6.5

8

5

5.5

3.5

2.4

2.9

4.8

7

M

b5

b4

b2

-

Dec.

3.5

2.0

3.2

3 3

2^0

1.6

1.6

2.6

10

12

9.5

16

10

2,8

4.5

5

2.4

3.4

3.0

1.6

bl.5

b4.5

b6

b7.5

b8

b9

b9.5

blO

26

29

28

Jan.

14

26

19

12

5

bS.6

b2.9

1.7

8.3

3.0

3.0

b4

b6

b9

b!2

b!5

b!8

b20

b20

b!8

b!8

b!8

14

6.5

4.2

39

20

6.5

3.6

2.6

1.8

Feb.

2.5

4.S

4.0

3.5

41

57

28

7.5

4.0

1.7

1.5

4.0

.9

.4

.5

.2

.5

.6

b5

b!3

b8

1.8

1.2

18

33

21

26

28

25

_

-

Month

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

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

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

Kav. ...

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

Water year 1939-4

Mar.

23

33

37

17

10

4.5

2.4

2.6

3.0

2,9

6

b7.5

2.3

1.1

.9

1.1

2.1

.9

.8

.8

1.9

6

12

20

54

49

56

48

37

38

75

Apr.

98

52

39

30

29

25

29

30

30

35

44

55

71

96

139

95

eo

89

107

130

132

151

162

151

135

115

104

98

182

118

-

Secondfoot-days

589

242.6

238.9

17,754.0

347.9

348.4

555.8

2,651

4,341

2 519

P*O9O

3 ,296

848

18,067.6

May

107

110

130

159

164

157

145

130

127

164

207

212

194

202

199

185

164

151

143

139

132

123

112

106

100

95

92

90

89

96

117

Mfl-y^Tmim

29

17

29

190

39

57

75

i82

£12

Xi8

147

155

38

212

June

118

115

112

117

106

96

96

109

117

117

107

86

81

81

85

85

84

82

79

eo

74

66

64

64

62

51

40

47

48

50

-

July

44

40

40

40

35

27

26

24

22

20

20

19

19

34

54

77

85

65

84

82

84

84

84

89

101

107

115

130

147

137

135

Mi-PiBp 1

14

g

1,5

1.5

1.7

1.2

.8

25

89

40

19

19

.8

Aug.

1S7

145

153

155

130

125

123

118

112

114

110

109

109

117

132

132

130

130

110

90

94

95

95

94

92

92

77

42

49

46

39

Mean

19 0

s!o9

7.71

48.6

11.2

12.0

17.9

140* 68 4

84.0

67.4

106

28.3

49.4

Sept.

38

33

30

32

33

33

33

33

36

36

34

33

29

29

25

26

26

35

25

21

19

23

21

21

22

20

23

31

25

23

-

Run-off in 

acre-feet

1,170

481

474

35,200

690

691

1,100

5,260

8,610

5,000

4,150

6,540

1,680

35,850

b Stage-discharge relation affected by ice.

9-232 February. 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
360 PIT RIVER BASIN

Hat Creek near Hat Creek, Calif.

Location.- Water-stage recorder, lat. 40°41', long. 121°25', in SEi sec. 28, T. 33 N., 

R. 5 E., about 1 mile northeast of Old Station post office and 8 miles southeast of 

Hat Creek post office. Altitude of gage, about 4,500 feet (from topographic map).

Drainage area.- 155 square miles.

Records available.- April 1928 to September 1940. July 1926 to April 1928, at site half 

a mile upstream.

Average discharge.- 13 years (1926-29, 1930-40), 107 second-feet.

Extremes.- Maximum discharge during year, 387 second-feet Jan. 2 (gage height, 3.38 feet); 

minimum, 96 second-feet Oct. 19.

1926-40: Maximum discharge, 2,500 second-feet Dec. 11, 1937 (gage height, 7.75 

feet, in well, affected by drawdown), by slope-area method; miriimun, 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 1939-4O (gage height, in feet, and discharge, in second-feet)

2.2

2.3

2.4

2.5

106

125

147

2.6

2.7 

2.S 

2 9

171

197

223

250

3.0 278 

3O6

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

S3 

24 

25

26 

27 

28 

29 

30 

31

Oct.

112 

114 

110 

106 

104

1O6 

104 

103 

101 

101

100 

100 

98 

98 

98

98 

98 

98 

98 

100

101 

103 

104 

108 

106

104 

106 

103 

98 

98 

98

Hov.

98 

98 

98 

98 

96

98 

98 

98 

98 

98

98 

9S 

98 

98 

98

98 

98 

98 

98 

98

98 

98 

98 

98 

98

98 

100 

1OO 

103 

1O3

Dec.

100 

100 

100

100 

100

loo 

100

100 

192 

192

149 

121 

116 

112 

110

110 

116 

110 

108 

1O8

106 

103 

1O6 

104 

103

104 

104 

1O6 

110 

110 

123

Jan.

220 

284 

164 

145 

132

123 

123 

123 

123 

119

119 

116 

108 

104 

106

106 

106 

108 

110 

110

108 

110 

HO 

108 

110

119 

114 

112 

112 

112 

114

Feb.

114 

112 

114 

114 

112

117 

114 

110 

110 

112

108 

106 

1O6 

103 

104

108 

103 

104 

103 

103

103 

1O2 

102 

102 

102

105 

140 

20O 

180

Month

Dot 

Hot 

Dec

C

Jar 

Pel 

Mai 

Apr 

Ma, 

Jim 

Jul 

AUJ 

Sep

11

alendar year 1939 ......................

nary

Fater year 1939- 10 .....................

Mar.

170 

160 

150 

140 

130

120 

115

no 

no 

no

110 

110

no

IDS 

108

108 

107 

106 

105 

105

104 

103 

102 

1O2 

102

103 

105 

110 

120 

140 

170

Apr.

165 

157 

152 

147 

143

140 

140 

140 

140 

140

143 

147 

152 

161 

157

145 

145 

154 

164 

171

171 

174 

174 

171 

164

159 

154 

157 

154 

159

Secondfoot-days

3,176 

2,954 

3,523

42,325

3,878 

3,313 

3,653 

4,640 

5,843 

4,904 

3,596 

3,440 

3,3S4

46,304

Nay

171 

192 

192 

181 

161

157 

157 

164 

176 

197

197 

194 

197 

202 

194

189 

194 

194 

192 

197

194 

194 

200 

2OO 

194

189 

187 

181 

181 

305 

220

Ilo--Hiimm

114 

103 

192

192

284 

200 

170 

174 

220 

2O2 

129 

119 

129

284

June

2O2 

192 

187 

187 

1S1

179 

176 

169 

166 

164

164 

164 

164 

161 

164

166 

164 

159 

159 

159

159 

157 

154 

154 

149

147 

145 

140 

138 

134

July

129 

127 

127 

123 

119

117 

117 

116 

114 

123

129 

127 

123 

121 

121

121 

121 

121 

119 

114

108 

1O6 

104 

104 

104

103 

101 

101 

103 

114 

119

Aug.

119 

117 

117 

117 

117

117 

117 

117

no

103

104 

104 

106 

104 

104

106 

104 

104 

112 

114

114 

116 

116 

114 

114

114 

114 

112 

108 

104 

101

m Turning Mean

98 1O2 

98 98.5 

100 114

91 116

104 125 

102 114 

102 118 

140 155 

157 188 

134 163 

101 116 

101 111 

100 113

98 127

Sept.

101

loo

100 

100 

101

101 

101

no

116 

116

117 

116 

117 

117 

117

117 

117 

129 

121 

116

116 

116 

114 

114 

114

116 

116 

116 

116 

116

Rim-off in 

acre-feet

6,300 

5,860 

6,990

83,970

7,690 

6,c70 

7,250 

9,200 

11,590 

9,730 

7,130 

6,820 

6.71O

91,840

Note.- Ho gage-height record Feb. 2O to Apr. 1; discharge computed on basis of rainfall record 

near Hat Creek, records for Pit River near Canby, and range of stage.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
PIT RIVER BASIN 261

McCloud River near McCloud, Calif.

Location.- Water-stage recorder, lat. 41°11', long. 122°04', in NEi sec. 34, T. 39 N., 

R. 2 W., half a mile downstream from Angel Creek and 6 miles southeast of McCloud. 

Altitude of gage, abcut 2,750 feet (from topographic map).

Drainage area.- 388 square miles.

Records available.- April 1931 to September 1940.

Extremes.- Maximum discharge during year, 8,820 second-feet Feb. 28 (gage height, 8.9 

feet); minimum, 632 second-feet Dec. 28 (gage height, 1.07 feet).

1931-40: Maximum discharge, that of Feb. 28, 1940, from rating curve extended 

above 2,400 second-feet on basis of velocity-area and Ai/3"studies; minimum, "524 

second-feet Nov. 23, 24, 1932.

Remarks.- Records good. Two small diversions above station with a total capacity of 

about 10 second-feet.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

702 

696 

696 

689 

689

689 

689 

689 

682 

682

682 

682 

682 

682 

676

676 

676 

676 

670 

670

670 

670 

670 

682 

670

670 

670 

663 

663 

663 

663

HOT.

663 

663 

656 

656 

656

656 

656 

656 

656 

656

656 

656 

656 

656 

650

650 

650 

650 

650 

650

650 

650 

650 

650 

663

663 

656 

650 

650 

650

Dec.

650 

650 

650 

650

650

650 

656 

689 

880 

1,160

1,070 

812 

734 

70E 

682

682 

689 

689 

676

670

656 

656 

650 

644

644

638 

638 

638 

644 

656 

722

Jan.

859 

1,210 

1,240 

1,170 

1,020

908 

852 

936 

1,470 

1,500

1,330 

1,140 

1,010 

936 

880

845 

819 

806 

786 

767

754 

748 

741 

754 

786

901 

985 

929 

880 

852 

845

Feb.

832 

838 

,150 

,E90 

,200

,480 

,450 

,240 

,130 

1,080

1,080 

1,020 

985 

957 

9E2

894 

894 

873 

845 

838

832 

826 

819 

845

1,190

2,310 

5,900 

7,540 

4,250

Month

Oot 

Box 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

»

ua

ater year 1939-4

Peak discharge. -

p.m.) 1,670 sec. -ft 

(11 a.m.) 4,590 sec

Mar.

2,810 

E.260

1,940 

1,740 

1,580

1,470 

1,390 

1,350 

1,300 

1,260

1,210 

1,160 

1,130 

1,120 

1,100

1,090 

1,080 

1,050 

1,040 

1,040

1,030 

1,020 

1,030 

1,040 

1,180

1,390 

1,710 

1,450 

1,910 

4,140 

3,050

Apr.

2,280 

1,920 

1,790 

1,720 

1,610

1,510 

1,510 

1,570 

1,500 

1,430

1,380 

1,340 

1,310 

1,300 

1,280

1,230 

1,210 

1,190 

1,180 

1,170

1,160 

1,150 

1,150 

1,140 

1,140

1,120 

1,100 

1,090 

1,070 

1,070

Secondfoot-days

21 ,029 

19,630 

21 ,877

274,345

29,659 

45,510 

47 ,070 

40,620 

31,595 

26,967 

25,864 

24,945 

23,431

358,197

May

,070 

,090

,110 

,140 

,120

,090 

,070 

,060 

,060

,060

,060 

,040 

,040

,030 

,020

,020 

,000 

997 

997 

990

964 

978 

971 

964 

958

945 

945 

938 

938 

952 

958

Maximum

702 

663 

1,160

1,160

1,500 

7,540 

4,140 

2,280 

1,140 

952 

844 

826 

809

7,540

June

952 

938 

93E 

926 

919

912 

912 

906 

900 

906

906 

906 

906 

906 

906

906 

900 

900 

900 

893

893 

886 

880 

880 

874

874 

868 

868 

86 E 

850

July

844 

838 

838 

838 

832

832 

832 

826 

826 

826

838 

838 

838 

838 

838

838 

838 

844 

838 

838

838 

832 

832 

832

832

832 

832 

832 

833 

826 

826

Aug.

826 

820 

820 

8EO 

814

814 

814 

814 

809 

809

809 

809 

809 

809 

809

804 

804 

804 

804 

798

798 

798 

798 

798 

792

792 

792 

792 

792 

787 

787

Minimum Mean

663 678 

650 654 

638 706

638 752

741 957 

819 1,569 

1,020 1,518 

1,070 1,354 

938 1,019 

850 899 

S26 834 

787 805 

770 781

638 979

Sept.

787 

792 

809 

792 

792

787 

782 

782 

782 

782

782 

782 

782 

782 

782

782 

782 

782 

776 

776

776 

776 

776 

776 

770

776 

776 

770 

770 

770

Run-off in 

acre-feet

41,710 

38,940 

43,390

544 , 200

58,830 

90,270 

93,360 

80,570 

62,670 

53,490 

51 ,300 

49,480 

46,470

710,500

Dec. 10 (11 p.m.) 1,360 sec. -ft.; Jan. 2 (8 p.m.) 1,390 sic. -ft.; Feb. 6 (8:30 

.; Feb. 2? (8:30 a.m.) 8,820 sec. -ft.; Mar. S7 (1 a.m.) 1,910 sec, -ft.; Mar. 30

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
362 PIT RIVER BASIN

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 fro-n Baird post office and 14 miles upstream from 

mouth. Altitude of gage, about 7CX' feet (from topographic map).

Drainage area.- 668 square miles.

Records available.- December 1930 to September 1940. December 1910 to December 1930 at 

site 1 mile upstream.

Average discharge.- 29 years (1911-40), 1,690 second-feet.

Extremes.- Maximum discharge during year, 50,000 second-feet Feb. 28 (gage height, 29.2 

feet) from rating curve extended above 26,000 second-feet by logarithmic plotting 

and cable-gage ratings at old and present sites: minimum, 820 second-feet Nov. 20-24, 

Dec. 4-5.

1910-40: Maximum discharge, that of Feb. 28, 1940; minimum, 650 second-feet for 

several days during period August to October 1931.

Remarks.- Records excellent except those for period of no water-stage recorder record, 

which are good.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

IS

13

14

15

16

17

18

19

SO

21

22

23

24

25

26

27

28

29

SO

31

Oct.

841

838

834

830

841

855

841

834

834

830

830

827

827

827

827

827

827

827

827

827

827

827

827

883

855

838

838

838

834

830

830

HOT.

830

830

830

830

830

830

830

827

827

827

827

827

827

827

827

824

824

824

824

820

820

820

820

820

844

930

355

834

830

827

~

Dec.

827

827

824

820

820

824

824

1,000

3,110

4,780

4,590

2,180

1,620

1,380

1,250

1,190

1,300

1,210

1,160

1,120

1,030

1,060

1,040

1,010

994

97S

970

978

1,020

1,130

1,680

Jan.

3,750

7,050

5,750

.6,530

4,260

3,100

2,660

4,760

11,000

10,200

7,090

4,760

3,640

3,020

2,620

2,360

2,170

2,020

1,900

1,790

1,710

1,650

1,610

1,700

3,270

6,840

5,620

4,170

3,360

2,910

2,590

Feb.

2,400

2,390

7,100

7,650

6,320

6,930

6,330

4,S20

3,940

3,440

3,140

2,840

2,860

2,900

2,740

2,570

4,270

3,780

3,100

2,750

2,550

2,460

2,360

2,540

4,S90

12,900

34,200

44,000

24,000

_

-

Month

Calendar year 1939. .....................

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

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

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

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

Water year 1939-40......................

Mar.

13,000

9,400

7,200

5,500

5,000

4,500

4,080

3,700

3,580

3,320

3,120

2,920

2,770

2,680

2,540

2,500

2,400

2,310

2,230

2,170

2,120

2,080

2,040

2,O70

2,310

4,860

5,600

4,540

12,400

26,000

16,600

Apr.

9,310

6,980

6,140

6,120

5,4SO

4,S60

4,740

4,960

4,730

4,420

4,040

3,770

3,530

3,370

3,220

3,020

2,860

2,740

2,650

2,570

2,480

2,420

2,370

2,340

2,420

2,290

2,210

2,150

2,100

2,060

Seoondf cot-days

25,878

24 942

43^596

442,994

125,860

212,170

165,540

112,400

55,400

40,300

34,610

31,818

29,961

902,565

May

2,030

2,060

2,080

2,320

2,210

2,110

2,030

1,980

1,940

1,910

1.S90

1,860

1,840

1,800

1,770

1,750

1,700

1,670

1,650

1,630

1,610

1,600

1,580

1,580

1,560

1,540

1,520

1,510

1,500

1,570

1,600

M»-r< mim

oo* OOO

930

4,780

9,920

11 , 000

44,000

26,000

9,310

2,320

1,570

1,200

1,070

1,070

44,000

June

1,570

1,530

1,490

1,470

1,450

1,430

1,410

1,400

1,370

1,370

1,360

1,340

1,340

1,340

1,330

1,330

1,320

1,310

1,340

1,330

1,300

1,290

1,230

1,260

1,250

1,250

1,240

1,230

1,230

1,230

-

July

1,200

1,180

1,1SO

1,160

1,160

1,150

1,150

1,140

1,120

1,120

1,120

1,130

1,130

1,120

1,120

1,120

1,110

1,110

1,110

1,100

1,100

1,090

1,090

1,080

1,080

1,080

1,080

1,070

1,070

1,070

1,070

Minimum

827

820

S20

820

1,610

2,360

2,040

2,060

1,500

1,230

1,070

993

972

820

Aug.

1,070

1,060

1,050

1,050

1,050

1,050

1,050

1,040

1,040

1,030

1,030

1,030

1,030

1,020

1,020

1,020

1,020

1,020

1,020

1,020

1,020

1,020

1,010

1,010

1,010

1,010

1,010

1,010

1,000

1,000

998

Mean

835

831

1,406

1,214

4,060

7,316

5,340

3,747

1,737

1,346

1,116

1,026

999

2,466

Sept.

994

994

1,070

1,050

1,020

1,020

1,020

1,010

1,000

998

998

998

1,010

1,010

998

994

994

998

994

989

984

980

976

976

976

980

998

984

976

972

-

Hun-off in 

acre-feet

51,330

49,470

36,470

373,700

249,600

420,800

323,300

222,900

109,900

60,110

68,650

63,110

59,430

1,790,000

Peak discharge.- Dec. 10 (7 p.m.) 7,640 sec.-ft.; Jan. 2 (4 p.m.) 8,000 sec.-ft.; Jan. 9 (4:30 

a.m.) 12,70O sec.-ft.; Feb. 3 (4:30 p.m.) 10,000 sec.-ft.; Feb. 28 (about 7 a.m.) 50,000 aec.-ft.; 

Mar. 30 (4 p.m.) 27,000 sec.-ft.

Hote.- No water-stage recorder record Feb. 28 to Mar. 18; discharge computed on basla of ataffgage readings Mar. 7, 9-16, 18, and records for Sacramento River at Kennett and Pit River near 

Ydaloom.

9-232 February 1936 (Jeologleal Survey
PULL CREEK BASIN 

Mill Creek near Los Molinos, Calif.

263

Location.- Water-stage recorder, lat. 40°03'20", long. 122°01'15", in N& sec. 6, T. 25 

N., R. 1 W., 5 miles upstream from mouth and 5 miles northeast of Los Molinos. Altitude of gage, about 420 feet (from topographic map).

Drainage area.- 134 square miles.

Records available.- October 1928 to September 1940. September 1909 to September 1913 

(fragmentary), staff gage at site 0.3 mile downstream.

Average discharge.- 12 years (1928-40), 246 second-feet.

Extremes.- Maximum discharge during year, 11,400 second-feet Feb. 28 (gage height, 12.35 

feet); minimum, 84 second-feet Oct. 20-23.

1928-40: 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 fair except those for period of no gage-height record, which are 

poor. No large diversions.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

SI

Oct.

92

109

94

90

92

120

105

94

92

90

88

86

86

86

86

86

86

86

86

84

84

84

84

103

105

92

90

90

90

88

86

Hov.

86

S6

86

86

S6

S6

86

86

86

86

S6

86

86

86

86

86

86

86

86

86

86

86

86

86

90

103

92

90

90

90

Dec.

90

90

88

SS

88

92

92

96

497

612

554

213

156

137

126

120

130

128

118

118

109

105

105

103

101

96

96

99

159

192

540

Jan.

1,840

2,800

898

975

691

614

S74

1,690

1,220

1,420

889

614

438

364

302

260

231

216

201

186

177

169

164

169

747

1,220

614

446

368

330

308

Feb.

29S

291

686

763

76S

826

704

538

438

392

364

316

330

550

3S9

326

1,390

637

422

347

312

302

280

277

446

2,150

7,640

7,560

3,260

-

Month

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

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

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

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

Water year 1939-40......................

Mar.

1,490

1,150

83S

666

574

502

458

450

440

408

373

345

328

314

307

324

324

303

300

303

314

328

345

380

562

1,280

1,510

948

2,160

6,430

3,470

Apr.

1,690

1,070

852

7O8

582

510

510

478

446

432

422

418

436

446

432

394

373

380

398

415

420

420

420

415

410

400

390

390

380

370

Secondfoot-days

2,834

2,619

5,338

54,110

21,425

33,002

27,924

15,407

13,374

9,221

4,582

3,223

3,316

142,265

May

380

390

430

450

450

440

430

420

415

466

498

458

466

466

470

426

446

440

426

432

446

446

443

454

436

408

387

376

366

370

443

Hmf^nnfltn

120

103

612

612

2,800

7,640

6,430

1,690

498

384

203

118

176

7,640

June

384

366

356

368

348

345

334

331

317

317

331

342

338

328

331

338

338

324

314

314

290

276

263

260

250

241

234

222

218

209

-

July

203

191

188

185

179

173

170

167

161

158

155

152

149

146

143

140

140

140

138

135

135

129

129

123

123

123

123

123

123

120

118

Mijiijnuin

84

86

88

72

164

277

300

370

366

209

118

95

92

84

Aug.

118

118

115

115

113

113

113

110

110

107

107

107

107

105

102

102

100

100

97

97

97

97

97

97

100

100

97

97

95

95

95

Mean

91.4

87.3

172

148

691

1,138

901

514

431

307

148

104

111

389

Sept.

95

92

95

110

107

107

105

102

102

100

100

100

100

100

100

100

110

135

176

138

129

126

123

123

123

107

105

102

102

102

~

Run-off in 

acre-feet

5,620

5,190

10,590

107,300

42,500

65,46O

55,890

30,560

26,530

18,290

9,090

6,390

6,580

282,200

Peak discharge.- Jan. 2 (Ir30 p.m.) 4,600 sec.-ft.j Jan. 8 (8 a.m.) 2,800 see.-ft.; Feb. 17 (8 

a.m.) a.m.; 2.360 e.oou sec.-ft.; sec. it.; Feb. pe 28 (5:30 a.m.) 11,400 sec.-ft.; Mar. 26 (9 p.m.) 3,060 see.-ft.; Mar. 30

(9 p.m.) 9,360 sec.-ft.

Note.- No gage-height record Apr. 21 to May 8; discharge computed on basis of records for station on Deer Creek near Vlna.

9-232 February 1936 Geological Surrey
264 ELDER CREEK BASIN

Elder Creek near Henleyvllle, Calif.

Location.- Water-stage recorder, lat. 40°02', long. 122°15', In SEi sec. 10, T. 25 N., R. 

4 W., at bridge on Paskenta-Red Bluff road, 1.2 miles upstream from Spring Branch and 

6 miles northeast of Henleyvllle. Altitude of gage, about 310 feet (from topographic 

map).

Drainage area.- 147 square miles.

Records available.- October 1930 to September 1940.

Average discharge.- 10 years, 68.1 second-feet.

Extremes.- Maximum discharge during year, 13,100 second-feet Feb. 28 (well gage height, 

10.3 feet; outside gage height, 9.7 feet); no flow Oct. 1 to Dec. 8, Aug. 1 to Sept. 

15, Sept. 20-30.

1930-40: Maximum discharge, that of Feb. 28, 1940; no flow for several months each 

year.

Remarks.- Records fair except those for Mar. 15-23, May 14 to Sept. 30, which are poor, 

wo large diversions.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. HOT. Dec.

0

0

0

0

0

0

0

0

100

335

124

37

20

13

10

8

7

7

6

5.5

4.9

4.4

4.9

8

6

5.5

4.9

4.9

7

22

83

Jan.

273

338

466

772

207

172

441

806

547

368

280

203

154

128

113

104

93

88

81

78

74

71

76

86

2,180

1,240

415

265

203

175

172

Feb.

290

232

885

565

443

450

350

270

214

178

152

132

647

725

246

192

1,030

320

222

181

157

144

130

124

172

707

5,820

7,560

2,100

-

Month

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

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

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

Jan 

Pet 

Haz

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

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

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

Water year 1939-40......................

Mar.

1,150

788

574

480

394

319

284

258

228

195

170

147

131

122

100

90

80

75

70

65

60

55

55

92

58

381

170

108

944

1,700

860

Apr.

565

422

380

305

260

218

207

199

175

163

149

142

140

135

128

119

113

109

102

97

93

91

88

86

97

93

84

79

78

74

-

Seoondfoot-days

0

0

828.0

3,756.7

10,669 

24,638 

10,203

4,991

1,305

327.2

62.0

0

42.3

53,065.5

May

70

73

73

73

71

66

65

60

57

54

52

50

47

44

40

36

34

32

30

28

26

24

22

20

18

16

14

12

10

41

47

Ma*^

0

0

335

335

2,180 

7,560 

1,700

565

73

58

0

39

7,560

June

26

58

30

20

15

13

12

11

10

10

9

9

9

e

8

e

7

7

7

6

6

6

5

5

4

4

3.7

3.5

3.5

3.5

Minimum

0

0

0

0

71 

124 

55

74

10

5.1

0

0

0

July

> 2.0

Aug.

Mean

0

0

26.7

10.3

344 

850 

329

166

42.1

10.9

2.0

0

1.41

145

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

39

3.0

.2

.1

0

0

0

0

0

0

0

0

0

0

0

-

Run-off in 

acre-feet

0

0

1,640

7,450

21,160 

48,870 

20,240

9,900

2,590

649

123

0

84

105,300

Peak discharge.- Jan. 25 (7:30 p.m.) 3,780 sec.-ft.; Feb. 3 (9 a.m.) 2,600 see.-ft. ; Feb. 13 

(11 p.m.) 3,860 see.-ft.; Feb. 17 (6:30 a.m.) 3,780 aec.-ft.; Feb. 28 (6:30 a.m.) 13,100 see.-ft.j 

Mar. 30 (6 p.m.) 2,960 aec.-ft.

Note.- Doubtful or no gage-height record Mar. 15-23, May 15-29, June 3-26, June 28 to Sept. IB, 

Sept. 20-30; discharge computed on basis of records for Thomas Creek at Paskenta, precipitation 

records, and known periods of no flow.

 -232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
THOMAS CREEK BASIN 

Thomas Creek at Paskenta, Calif.

265

Location.- Water-stage recorder, lat. 39°52', long. 122°33', In SEi sec. 5, T. 23 N., R. 

 6 W., half a mile upstream from Paskenta and 4i miles downstream from Mill Creek.

Drainage area.- 188 square miles.

Records available.- August 1930 to September 1940. October 1920 to August 1930, at site 

half a mile downstream prior to January 1921 (gage heights only).

Average discharge.- 19 years (1921-40), 231 second-feet.

Extremes.- Maximum discharge during year, 14,500 second-feet Feb. 28 (gage height, 14.3 

feet); minimum, 1.5 second-feet Oct. 3, 4.

1921-40: Maximum discharge observed, about 16,600 second-feet Mar. 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 fair. No diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

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 

1.9 

1.6

1.6 

1.7

1.9 

2.1 

2.1 

2.3 

2.5

2.3 

2.3 

2.3 

2.3 

2.3

2.3 

2.3 

2.3 

2.1 

2.1

1.9 

1.9 

1.9 

1.9 

2.1

2.1 

2.5 

2.5 

2.5 

2.5 

2.5

Rov.

2.8 

2.8 

3.0 

2.8 

2.8

2.8 

2.8 

2.8 

3.0 

2.8

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.2 

3.2 

3.2

3.2 

3.4 

3.4 

3.6 

4.1

4.9 

4.9 

4.6 

4.6 

4.3

Dec.

4.3 

4.6 

4.6 

4.6 

4.6

4.6 

4.9 

5.5 

742 

576

422 

156 

96 

65 

51

42 

97 

88 

62 

53

44 

38 

40 

36 

32

30 

28 

61 

396 

603 

1,330

Jan.

2,360 

1,990 

1,280 

1,940 

786

529 

517 

634 

1,150 

1,300

946 

730 

536 

434

356

309 

269 

244 

224 

203

187 

183 

191 

203 

896

2,260 

1,330 

896 

770 

794 

836

Feb.

992 

824 

1,290 

2,010 

2,010

2,340 

1,580 

1,130 

890 

806

722 

608 

728 

770 

570

515 

830 

602 

520 

470

450 

435 

412 

450 

866

2,970 

10,800 

9,460 

3,100

Honth

Dot 

Rov 

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

alendar year 1939......................

11.....................................

 ter year 1939-4 0...... ................

Ear.

1,860 

1,580 

1,260 

1,100 

999

878 

902 

878 

794 

692

608 

540 

475 

426 

408

431 

440 

412 

412 

435

460 

515 

520 

555 

555

2,420 

1,910 

1,380 

3,790 

4,380 

2,500

Apr.

1,660 

1 , 300 

1,120 

944 

830

740 

770 

776 

698 

662

656 

674 

680 

680 

626

555 

500 

510 

515 

485

460 

460 

445 

422 

394

352 

314 

297 

280 

267

Secondfoot-days

67.6 

100.0 

5,125.7

31,679.1

25,283 

49,150 

34,515 

19,072 

7,807 

2,081 

304.5 

88.6 

124.9

143,719.3

May

290 

314 

297 

365 

322

294 

297 

290 

294 

337

352 

356 

348 

311 

283

254 

251 

235 

222 

212

210 

200 

196 

183 

172

152 

140 

140 

132 

194 

164

Maximum

3.0 

4.9 

1,330

1,330

2,360 

10,800 

4,380 

1,660 

365 

158 

24 

4.0 

6

10,800

June

152 

158 

136 

124 

116

108 

103 

96 

88 

84

80 

75 

71 

67 

62

60 

57 

53 

48 

45

39 

36 

33 

32 

30

28 

27 

25 

24 

24

July

24 

22 

19 

17 

16

13 

12 

12 

11 

9.5

9 

9 

8.5 

8 

7.5

7 

6.5 

6.5 

6.5

7

15 

11 

8.5 

6.5 

5.5

4.8 

4.5 

4.5 

4.5 

4.5 

4.2

Minimum

1.6 

2.8 

4.3

0

183 

412 

408 

267 

132 

24 

4.2 

2.4 

2.4

1.6

Aug.

4.0 

4.0 

3.6 

3.6 

3.4

3.4 

3.4 

3.2 

3.0 

2.8

2.6 

2.6 

2.6 

2.4 

2.6

2.8 

2.8 

2.6 

2.6 

2.6

2.6 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.6 

2.4 

2.4 

2.4

Mean

2.18 

3.33 

165

86.8

816 

1,695 

1,113 

636 

252 

69.4 

9.82 

2.86 

4.16

393

Sept.

2.4 

2.4 

2.6 

3.0 

3.2

3.2 

3.0 

3.2 

3.2 

3.2

3.4 

4.2 

5.0 

4.2 

4.2

5.5 

6 

6 

6 

5.5

5.0 

4.8 

4.8 

4.8 

4.5

4.5 

4.2 

4.5 

4.2 

4.2

Run-off in 

acre-feet

134 

198 

10,170

62,840

50,150 

97,490 

68,460 

37,830 

15,480 

4,130 

604 

176 

248

285,100

Peak discharge.- Jan. 1 (6 p.m.) 4,390 sec.-ft.; Jan. 

a.m.) 3,330 sec.-ft.; Feb. 28 (3 a.m.) 14,500 sec.-ft.j 

(8 p.m.) 6,910 sec.-ft.

26 (10 a.m.) 3,480 sec.-ft.; Feb. 6 (11 

Hap. 26 (5 p.m.) 5,450 sec.-ft.; Mar. 29

400454 O - 41 - 18

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
266 DEER CREEK BASIN

Deer Creek near Vina, Calif.

Locatlon.r 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. 

Prior to Jan. 19, 1939, at datum 2.64 feet higher. 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 1940.

Average discharge ._- 21 years (1912-15, 1920-37, 1939-40), 272 second-feet.

Extremes.- Maximum discharge during year, 18,400 second-feet Feb. 28 (gage height, 13.8 

reet); minimum, 73 second-feet Oct. 1.

1911-15; 1920-40: Maximum discharge, 23,800 second-feet Dec. 10, 1937 (gage height, 

19.2 feet, present datum, from floodmarks), from rating curve extended above 8,000 

second-feet; minimum, 43 second-feet Dec. 13, 1932.

Remarks.- Records good. No diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

I

%

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

ei

W

US

84

25

26

27

28

29

30

31

Oct.

75

95

83

78

SO

90

90

81

78

76

76

75

75

75

75

75

75

75

75

75

75

75

76

93

104

86

83

83

81

80

78

Hov.

78

78

78

78

76

76

76

76

76

76

76

76

76

76

76

76

75

75

75

75

75

76

76

76

80

95

83

80

80

78

-

Dee.

78

78

78

78

78

78

80

84

331

703

530

191

131

112

104

99

106

116

99

99

95

93

91

91

90

86

86

90

124

153

307

Jan.

1,580

1,900

770

1,060

645

508

787

2,080

1,500

1,450

986

712

508

388

321

270

237

213

196

183

170

163

158

165

686

1,320

794

560

445

380

349

Feb.

335

331

1,500

1,240

1,070

1,120

993

740

600

522

472

400

427

655

486

409

1,300

826

605

490

427

396

360

356

522

3,550

11,800

12,300

5,220

_

-

Month

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

V*7.................. .....................

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

Water year 1939-40. .....................

Mar.

2,680

1,870

1,410

1,180

990

870

760

712

673

595

547

480

435

408

391

440

470

408

387

379

375

375

383

421

692

1,460

1,850

1,390

2,760

8,290

5,430

Apr.

3,010

2,020

1,540

1,280

1,060

918

855

810

732

673

621

577

577

559

559

524

491

470

460

445

430

426

408

404

396

391

383

356

356-

333

Seoondfoot-days

4,559

_

7,927

3,298

2,879

163,127

Hay

321

318

344

352

368

325

303

287

274

268

265

265

268

265

262

256

247

236

231

225

220

215

210

208

200

198

195

193

188

205

215

Maximum

703

_

368

122

115

12,300

June

200

193

186

179

174

168

162

157

153

151

147

145

142

138

136

134

134

132

130

130

129

125

124

122

120

120

120

120

120

122

-

July

122

118

117

115

114

112

112

110

110

109

108

108

106

106

106

104

104

104

104

104

103

103

102

100

99

99

100

100

100

100

99

Minimum

75

75

78

-

188

99 

prr

89

75

Aug.

97

97

97

96

96

94

94

93

93

90

90

90

90

90

90

90

90

90

89

87

S7

89

89

90

90

90

90

90

90

89

89

Mean

77.4

147

_

256

106

96.0

446

Sept.

89

89

90

97

96

96

94

93

92

92

92

92

92

99

94

94

99

106

115

102

97

94

94

96

96

97

106

100

94

92

-

Run-off in 

acre-feet

4,610

9,040

-

42,610

98,090

15,720

6,540

5,710

323,600

Peak discharge.- Jan. 1 (6:30 p.m.) 2,820 sec.-ft.; Jan. 8 (7:30 a.m.) 2,880 sec.-ft.; Feb. 3 

(5:30 p.m.) 4,020 sec.-ft.; Feb. 28 (6 a.m.) 18,400 sec.-ft.; Mar. 26 (10:30 p.m.) 2,830 sec.-ft.; 

Mar. 30 (9 p.m.) 10,800 aec.-ft.

9-832 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
CHICO CREEK BASIN 

Chlco Creek near Chico, Calif.

267

Location.- Water-stage recorder, lat. 39°46', long. 181°46', in Arroyo Chico 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.- May 1930 to September 1940.

Average discharge.- 10 years, 181 second-feet.

Extremes.- Maximum discharge during year, 7,040 second-feet Feb. 87 (gage height, 14.58 

feet); minimum, 80 second-feet Oct. 13-83.

1930-40: Maximum discharge, 8,860 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, 1938 and Aug. 15, 1939.

Remarks.- Records good. No large diversion above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

SB

29

30

31

Oct.

21

24

23

21

22

2V

25

22

22

21

21

21

20

20

20

20

20

20

20

20

20

20

20

30

33

24

24

24

23

23

22

Hov.

22

22

22

22

22

22

22

22

23

23

23

23

23

23

23

23

23

23

23

23

23

23

23

23

24

28

24

24

23

23

Dec.

23

23

23

22

23

23

23

25

111

321

225

83

54

43

3V

33

33

32

30

30

29

28

28

28

27

2V

2V

28

33

35

V9

Jan.

1,020

1,750

526

V66

362

246

364

2,000

1,300

1,040

812

494

31V

232

1V9

152

129

116

106

96

39

85

81

S3

506

l.VVO

752

434

299

232

194

Feb.

171

160

636

823

730

665

545

419

322

263

224

196

205

354

289

238

440

440

365

299

259

238

210

203

277

1,690

6,310

5,710

3.2OO

_

-

Month

Haroh. ....................................

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

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

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

Water year 1939-4

Mar.

1,710

1,040

747

577

464

383

321

280

253

226

208

136

16B

157

147

149

142

130

123

116

111

107

103

108

121

537

703

533

2,030

4,840

3,180

Apr.

1,670

1,020

748

589

468

385

340

291

258

230

204

185

171

161

153

145

138

130

124

117

112

107

104

101

103

104

101

98

96

86

-

Secondfoot-days

693

690

1,536

15,691

16,532

25,889

19,900

8,539

1,958

1,108

836

700

711

79,142

May

32

81

35

101

97

86

81

76

73

70

68

67

65

63

62

57

54

52

51

50

49

48

47

46

45

45

44

44

44

58

67

Mnyimqm

33

23

321

321

2,OOO

6,310

4,340

1,670

101

52

33

24

27

6,310

June

52

48

46

46

43

42

41

40

39

38

38

37

36

36

35

34

34

33

33

33

32

32

32

33

33

33

33

30

33

33

-

July

33

31

30

29

29

29

28

28

28

28

28

28

28

27

27

26

27

27

27

26

26

25

25

24

24

25

25

25

25

24

24

Minimum

20

22

22

18

31

160

103

86

44

30

24

22

22

20

Aug.

24

24

24

24

24

24

24

24

23

23

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

Mean

22.4

23.0

51.2

43.0

533

893

642

285

63.2

36.9

27.0

22.6

23.7

216

Sept.

22

22

22

24

24

24

24

26

24

23

23

22

24

24

23

24

24

24

27

24

24

22

23

23

23

23

24

26

25

24

-

Run-off in 

acre-feet

1,370

1,370

3,150

31,130

32 j 790

51.350

39,470

16,940

3,880

2,200

1,660

1,390 

1,410

157,000

Peak discharge.- Jan. 1 (12 .m.) 2,530 sec. -ft.; Jan. 8 (5 p.*.) 2,600 sec. -ft.; Jan. 26 (7 6 to 7 a - m* ) 7 - 040 sec -"- 5 Mar- 26 (6s3° p-> ^ sec -ft- j

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
268 STONY CREEK BASIN 

Stony Creek above Stony Gorge Reservoir, Calif.

Location.- Water-stage recorder, lat. 39°30'05", long. 122°31 I 00", in sec. 15, T. 19 N., 

R. 6 W., 700 feet downstream from road bridge and 6 miles south of Stony Gorge Dam.

Drainage area.- 266 square miles.

Records available.- October 1933 to September 1940.

Extremes.- Maximum discharge during year, 18,100 second-feet Feb. 28 (gage height, 12.40 

feet;; minimum, 9 second-feet Aug. 10.

1933-40: Maximum discharge, 20,800 second-feet Dec. 10, 1937 (gage height, 13.1 

feet), from rating curve extended above 2,100 second-feet on basis of studies of 

change in contents in Stony Gorge Reservoir, 6 miles below station; minimum, 2.4 

second-feet Aug. 22, Sept. 8, 1934.

Remarks.- Records good except those for periods of doubtful gage-height record, which 

are fair. Flow regulated by East Park Reservoir.

Cooperation.- Water-stage recorder graph and results of three discharge measurements 

furnished by E. A. Garland, Federal water-master for Stony Creek and tributaries.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

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

18

17

15

15

19

27

22

18

18

17

16

15

16

16

15

15

15

15

15

15

15

15

15

16

17

17

16

15

16

16

Hov.

15

15

15

42

95

80

57

32

17

16

16

14

15

16

15

15

15

15

15

14

14

15

15

14

16

IS

18

18

18

18

-

Dec.

18

18

18

18

18

18

18

18

87

220

274

101

66

55

45

40

43

43

40

37

36

35

38

36

35

34

34

38

128

152

348

Jan.

84S

1,110

688

1,160

531

386

685

1,400

1,330

1,290

1,030

704

511

386

318

256

212

183

133

103

94

85

95

94

2,150

2,160

3,000

660

492

403

577

Feb.

660

468

1,030

1,250

1,130

1,080

868

660

516

421

355

286

874

1,020

592

472

1,430

775

582

468

399

351

306

286

372

1,680

8,920

13,300

6,250

_

-

Month

Calendar year 1939. .....................

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

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

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

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

Water year 1939- 10 .....................

Mar.

3,760

2,560

1,740

1,310

1,030

S14

677

578

506

464

446

433

424

416

413

406

395

384

378

372

366

363

360

360

360

1,080

1,400

1,020

2,430

4,120

3,180

Apr.

2,100

1,470

1,150

935

790

688

660

647

614

571

535

502

470

449

404

376

349

298

269

259

245

238

231

228

248

302

266

235

219

198

-

Secondfoot-days

517

69S

2,109

41,043.0

21,074

46,301

32,545

15,946

4,654

1,886

795

6,620

7,401

141,046

May

190

1S2

180

225

231

207

195

182

" 175

170

162

155

155

153

150

148

144

133

133

129

123

112

108

106

10O

103

105

105

103

144

146

KfUEJJBUDl

27

95

348

384

2,160

13,300

4,120

2,100

231

133

38

367

409

13,300

June

131

133

118

106

93

8S

80

66

66

64

61

56

53

54

51

48

50

50

51

52

4S

47

43

41

41

41

40

38

38

38

-

July

33

36

34

34

31

26

24

24

21

23

23

23

23

26

24

24

28

28

24

26

26

26

25

25

24

24

24

21

20

19

21

Minimum

15

14

18

5.5

85

286

360

198

100

58

19

11

13

11

Aug.

18

16

15

15

15

15

14

12

11

12

14

14

201

332

328

328

325

328

345

d365

h367

d365

d360

d355

d350

h345

d345

d350

d350

d355

d355

Mean

16.7

23.3

68.0

112

680

1,614

1,050

532

150

62.9

25.6

214

247

385

Sept.

d360

h362

d355

d350

d345

d340

h266

60

h409

d408

d408

d407

d406

d405

d404

h404

d40O

d390

d380

d340

d40

d25

h20

d20

18

15

13

14

18

19

-

Run-off in 

acre-feet

1,030

1,380

4,180

81,410

41,800

92,830

64,550

31,630

9,230

3,740

1,580

13,130

14,680

279,800

d Doubtful gage-height record; discharge computed on basis of staff-gage readings and shape of 

water-stage recorder graph.

h Discharge computed from outside staff-gage reading.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
STONY CREEK BASIN 

Grindstone Creek near Elk Creek, Calif.

269

Location.- Water-stage recorder, lat. 39°41', long. 122°32', in sec. 15, T. 21 N., R. 6 

W., at county road bridge, 0.6 mile upstream from mouth and 5 miles north of town of 

Elk Creek. Former gage at site 0.2 mile downstream at different datum.

Drainage area.- 166 square miles.

Records available.- November 1935 to September 1937, October 1939 to April 1940.

Extremes.- Maximum discharge during period October to April, 13,000 second-feet Feb. 27 

(gage height, 7.55 feet); no flow Oct. 1 to Dec. 8.

1935-37; 1939-40: Maximum discharge computed, that of Feb. 27, 1940; no flow Oct. 

24 to Dec. 23, 1936, Oct. 1 to Dec. 8, 1939.

A stage of 9.55 feet, former site and datum, occurred Dec. 11, 1937 (discharge not 

determined).

Remarks.- Records fair.

Cooperation.- Water-stage recorder record furnished by E. A. Garland, Federal Court Water 

Piaster for Stony Creek and tributaries.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

IS

16

17

IS

19

SO

81

22

23

24

25

86

27

28

OO ev

30

51

Oct. HOT. Dec.

0

0

0

0

0

0

0

0

48

92

109

37

IS

12

9

7.5

7

23

15

12

10

10

9

S.5

7

5.5

6

6.5

96

154

246

Jan.

302

430

293

5SS

242

161

216

424

610

632

456

288

203

153

126

109

92

81

72

62

55

48

52

55

920

1,310

540

307

225

190

215

Feb.

314

230

663

1,220

1,100

1,070

817

570

410

321

258

205

430

540

307

235

874

477

328

252

215

195

174

174

282

1,140

4,870

7,000

1,820

-

Month

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

Jan

Feb 

Har

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

Mav.

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

The perlod.. ............................

liar.

1,170

890

872

783

691

587

488

431

352

285

252

195

171

148

131

127

111

88

61

78

70

70

74

74

84

752

724

651

1,440

2,420

1,680

Apr.

1,430

1,230

1,130

1,000

870

770

750

690

622

584

539

512

476

460

442

408

368

336

320

290

275

260

245

245

282

252

210

166

142

116

-

Seoondfoot-days

0

0

948.0

-

9,457 

26,491 

15,970

15,422

_

_

_

-

-

Hay

UtavJTfnwn

0

0

246

-

1,310 

7,000 

2,420

1,430

_

_

_

-

-

June July

Minimum

0

0

0

-

48 

174 

70

116

_

_

_

-

-

Aug.

Mean

0

0

30.6

-

305 

913 

515

514

_

_

_

-

-

Sept.

Run-off in 

acre-feet

0

0

1,880

-

18,760 

52,540 

31,680

30,590

_

_

.

_

-

135,400

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
270 BUTTE CREEK BASIN

Butte Creek near Chico, Calif.

in sec. 25, T. 22 N., R. 2 

miles east of Chico. Alti28 (gage height, 13.8

Location.- Water-stage recorder, lat. 39°44', long. 121°42'

E., half a mile downstream from Little Butte Creek and 7-

tude of gage, about 350 feet (from topographic map). 

Drainage area.- 148 square miles. 

Records available.- November 1930 to September 1940. 

Extremes.- Maximum discharge during year, 12.400 second-feet Feb

feet); minimum, 30 second-feet (regulated) Nov. 9.

1930-40: 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; minimum discharge recorded, 22 second-feet (regulated) Aug. 19, 1939. 

Remarks.- Records good. Butte Creek receives considerable water above station from

West Branch of Feather River by way of De Sabla and Centerville power plants.

Pacific Gas & Electric Co. has furnished the following record of this flow for

1939-40:

Monthly discharge, water year October 1939 to September 1940

Month Mean 

(aecond-feet)

49.2 

30.3 

46.8 

66.9 

13.8 

.7 

7.2 

46.7 

53.0 

33.6 

35.7 

37.2

35.1

Run-off 

(acre-feet)

3., 020 

1,800 

2,880 

4,110 

793 

44 

428 

2,S70 

3,150 

2,070 

2,200 

2,210

25,580

Discharge, in second-feet, water year October 1.939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

105

140

125

105

112

132

110

121

100

110

110

109

105

116

107

102

109

100

93

81

82

104

112

134

146

105

116

138

138

126

123

Hov.

117

117

92

93

75

100

95

95

76

9S

85

79

93

82

84

97

92

79

87

87

95

87

84

84

110

102

100

97

92

95

Dec.

92

89

95

92

92

87

92

104

305

621

585

243

204

191

174

123

170

154

161

136

136

121

146

132

116

125

121

117

150

157

209

Jan.

1,210

2,490

900

1,230

646

516

593

2,630

1,970

1,710

1,390

1,000

760

624

524

468

426

396

382

356

341

320

320

329

1,060

2,730

1,220

S20

664

585

532

Feb.

501

505

1,490

1,570

1,390

1,430

1,220

94S

80S

715

641

556

572

775

637

548

762

700

6O6

524

501

464

450

440

724

3,740

10,500

10,200

6,060

..

-

Month

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

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

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

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

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

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

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

Water year 1939-40. .....................

Mar.

3,640

2,480

1,900

1/540

1,280

1,120

1,000

900

S04

726

668

587

531

490

448

470

448

402

368

364

356

348

340

372

456

1,610

1,890

1,310

4,730

8,920

5,800

Apr.

3,700

2,830

2,270

1,780

1,470

1,270

1,180

1,060

970

879

S17

752

706

668

680

611

548

553

520

536

548

536

520

500

495

466

438

412

425

407

Secondfoot-days

3,516

2,769

5,340

63,684

29,142

49,974

46,298

28,547

10,769

5,906

3,849

3,489

3,549

193,148

May

402

407

430

495

448

372

352

368

364

448

438

398

343

326

316

316

352

333

326

319

312

305

298

291

284

280

274

267

264

280

356

Mmri-pmm

146

117

621

621

2,730

10,500

3l700

. 495

326

147

115

123

10,500

June

326

302

288

2SO

267

240

220

206

192

184

184

187

184

184

182

182

184

182

179

179

170

167

160

158

158

158

156

151

147

149

July

147

145

138

132

130

128

13O

130

130

128

125

125

123

121

123

123

123

123

123

121

121

119

117

115

115

115

115

117

117

115

115

Minimum

81

75

87

60

320

440

340

407

264

147

115

101

112

75

Aug.

115

115

113

113

113

115

115

115

113

113

112

112

110

112

112

112

112

101

113

113

113

112

112

113

113

113

113

113

113

113

112

Mean

113

92.3

172

174

940

1 Y23

1^493

952

34Y

19Y

124

113

j.18

528

Sept.

112

113

115

119

121

121

119

119

117

117

115

115

117

117

117

119

119

121

123

121

119

117

117

117

119

119

123

121

121

119

Run-off in 

acre-feet

6,970

5,490

10,590

126,300

57,800

99 120

91,830

56,62O

21,360

11,710

7,630

6,920

7,040

383, 10O

Peak discharge.- Jan

__.} 4.18O sec. ..., 

(12 m.) 9,760 sec.-ft

;e.- Jan. 2 (2 a.m.) 3,180 aec.-ft.; Jan. 8 (7:30 p.m.)-3,450 sec.-ft.; Jan. 26 (7 

.-ft.j Feb. 28 (8 a.m.) 12,400 aec.-ft.; Mar. 26 (6i30 p.m.) 3,740 sec.-ft.; Mar. 30

9-232 February 1936

TOUTED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
FEATHER RIVER BASIN 271

Lake Almanor near Prattvllle, Calif.

Location.- Staff gage, lat. 40°10'30", long. 121°05'25", In NWi sec. 28, T. 27 N., R. 8

 E~, at outlet tower at dam 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.

Records available.- October 1913 to September 1940. 1913 to 1930, summary records only.

Extremes.- Maximum contents observed during year, 524,300 acre-feet May 25 and 31 (ele-

 vation, 4,468.0 feet); minimum observed, 294,900 acre-feet Nov. 2 (elevation, 4,455.07

feet).

1913-40: Maximum contents, 798,900 acre-feet June 9, 1928 (elevation, 4,480.5

feet); minimum after Initial filling, 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 In 1927. Storage 

Is no longer carried above 4,468 feet. Capacity, 524,300 acre-feet between elevations 

4,400 feet (bottom of outlet to river) and 4,468 feet above mean sea level. Water is 

diverted by tunnel to Butt Valley Reservoir for use In Caribou power plant and a 

small amount Is released at Almanor Dam down natural channel of river. (See records 

for North Fork of Feather River near Prattvllle). Figures given herein represent 

contents at midnight, 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 Geological Survey, In connection with a Federal Power Commission 

project.

Contents, in acre-feet, water year October 1939 to September 1940

D«y

1

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

SO

31

Oct.

323,700

323,100

321,800

320,700

319,900

319,400

313,400

317,400

316,200

314,900

314,100

313,300

312,300

311,400

310,400

309,400

308,500

307,400

306,400

305,500

304,500

303,400

302,800

302,600

301,400

300,200

299,300

298,400

297,400

296,500

295,700

Hov.

295,100

294,900

295,300

296,300

297,300

298,000

293,800

299,600

300,400

301,000

301,300

302,800

303,900

304,500

304,500

303,600

302,800

302,100

301,400

300,400

299,500

298,700

297,700

296,900

296,800

295,800

295,400

296,000

296,300

297,400

-

Dec.

293,000

298,700

299,300

299,300

298,300

293,700

297,400

297,100

297,900

298,700

299,600

302,000

303,200

304,500

305,600

306,600

307,400

308,200

308,800

309,000

308,200

307,200

306,400

305,500

304,700

303,900

302,800

302,000

301,400

300,900

300,900

Jan.

303,200

309,900

313,300

316,300

313,900

320,800

323,300

326,500

329,300

332,100

333,900

334,800

336,000

336,800

337,300

338,800

340,100

341,600

343,400

344,600

345,300

346,100

347,400

348,900

351,100

353,600

355,700

357,000

358,500

359,900

361,400

Feb.

363,300

365,000

366,900

369,600

371,700

374,600

376,800

373,200

379,600

380,600

382,000

333,600

335,500

388,300

389,900

391,300

394,700

396,400

398,000

399,600

401,200

402,800

403,900

405,300

408,200

414,400

425,300

439,700

450,200

_

-

Mar.

456,900

460,300

463,500

465,100

465,500

465,500

465,500

466,700

467,400

467,800

468,300

468,900

468,900

468,500

468,700

471,400

472,900

474,800

476,300

477,500

479,300

431,300

433,200

436,000

439,100

492,200

493,700

493,900

496,800

504,400

507,800

Apr.

503,700

508,500

507,200

504,300

502,500

500,300

497,300

494,900

492,400

489,700

483,500

433,200

438,000

487,600

437,400

488,000

490,300

493,700

497,000

500,900

503,100

503,500

503,700

503,700

503,700

502,700

500,900

499,400

493,400

498,000

-

May

496,300

497,400

500,300

501,500

504,300

506,200

507,600

509,700

512,100

514,400

517,400

519,600

521,200

521,300

522,000

521,800

521,400

522,000

523,000

523,500

523,500

523,200

523,200

523,700

524,300

523,900

523,500

523,500

523,500

523,400

524,300

June

523,700

523,200

523,000

523,200

523,200

523,000

522,300

523,000

523,700

523,400

523,200

522,800

522,400

522,200

522,600

523,400

523,000

522,600

522,200

521,600

521,000

520,300

521,000

520,000

519,400

518,800

518,200

517,600

516,400

515,400

-

July

514,600

513,700

512,700

511,900

510,900

509,700

508,900

508,000

506,300

505,600

504,400

503,500

502,500

501,500

500,300

499,200

498,000

497,000

496,100

495,300

494,100

493,000

491,600

490,800

439,900

438,700

487,300

487,000

435,300

434,500

433,400

Aug.

482,200

481,400

480,700

479,900

479,900

480,300

479,200

473,000

476,900

475,900

474,800

473,500

472,100

470,800

469,100

467,600

466,100

464,400

462,100

460,100

458,200

456,200

454,300

452,400

451,300

449,800

448,000

446,500

444,800

443,200

441,200

Sept.

439,000

436,900

435,100

432,900

430,900

429,100

426,900

424,700

423,100

421,100

413,700

416,200

414,200

413,000

412,800

411,700

409,800

408,000

406,900

405,700

404,200

402,600

400,500

398,500

396,400

394,500

392,700

391,300

390,600

390,300

~

Monthly elevation and contents, water year October 1939 to September 1940

Date

Calendar year 1939......

Peb 29

Water year 1939-40.....

Elevation 

(feet)

4,456.9 

4,455.1 

4,455.2 

4,455.4

-

4,459.2 

4,464.1 

4,467.2 

4,466.7 

4,468.0 

4,467.6 

4,465.9 

4,463.6 

4,460.8

-

Contents 

(a ere -feet)

324,100 

295,700 

297,400 

300,900

-

361,400 

450,200 

507,800 

498,000 

524,300 

515,400 

433,400 

441,200 

390,300

-

Change in contents 

during month 

(acre-feet)

-28,400 

+1,700 

+3,500

-63,900

+60,500 

+88,300 

+57,600 

-9,800 

+26,300 

-8,900 

-32,000 

-42,200 

-50,900

+66,200
FEATHER RIVER BASIN

North Fork of Feather River near Prattville, Calif.

Location.- Water-stage recorder and compound rectangular concrete weir, lat. 40°10', long.

121"06', in SWt sec. 28, T. 27 N., R. 8 E., 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 1940 (tables of daily discharge for May 1921

to September 1936, include water diverted through Butt Creek tunnel No. 1); June 1905

to March 1914 at site near that of Almanor Dam. 

Average discharge.- 34 years (1905-10, 1911-40), 874 second-feet, including diversion

through Butt creek tunnel No. 1. 

Extremes.- Maximum discharge during year, 2,340 second-feet (regulated) Apr. 1-3 (gage

height, 6.85 feet); minimum, 2.9 second-feet Nov. 25 to Dec. 1 and Mar. 16-24.

Extremes do not Include diversions through Butt Creek tunnel No. 1.

1905-40: Maximum discharge, 10,000 second-feet Mar. 19, 1907, before construction

of dam (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. For -storage record see records for Lake Almanor near Prattville.

Tables of daily discharge show releases from Lake Almanor down North Fork of Feather

River. Tables of monthly discharge show total run-off. Water diverted for power from

Lake Almanor through Butt Creek tunnel No. 1 to Butt Creek. 

Cooperation.- Water-stage recorder graph and results of four discharge measurements furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission

project.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

1.3 2.0 1.6 14 2.0 50 2.6 141 3.5 382 5.3 1,310

1.4 5 1.7 SI 2.2 75 2.9 205 4.1 634 6.0 1,760

1.5 9 1.8 29 2.4 106 3.2 266 4.7 950 6.9 2,370

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

Z

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

31

31

31

31

31

31

31

31

30

30

30

30

30

30

30

25

17

17

17

17

17

15

11

10

9

8.5

8

8

8

8

7

Nov.

5.5

4.7

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.5

3.5

3.5

3.5

3.5

3.2

3.2

3.2

2.9

2.9

2.9

2.9

2 9

2 9

-

Dec.

2.9

3.2

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.8

3.5

3.2

3.2

3.2

3.2

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.8

3.8

3.8

Month

Octobor. .............

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

Calendar year 1939

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

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

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

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

Mater year 1939-40

Jan.

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3'

3

3

3

4

3

3

4.

4

4

S

5

2

5

2

2

2

2

2

2

2

5

2

2

2

2

2

2

2

2

2

A

2

2

5

1

8

8

1

1

1

Feb.

4.1

4.1

4.7

6

7

5.5

4.7

4.4

4.4

4.4

a4.4

a4.4

a4.2

a4.2

a4.2

a4.0

a4.0

a4.0

a3.8

3.8

3.8

3.8

3.8

3.8

4.4

6

12

12

6.5

-

Mar.

372

888

888

888

894

900

1,050

412

203

203

203

203

203

203

86

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2 9

2.9

3.2

469

2,120

2,320

2,320

2,330

2,330

Apr.

2,340

2,340

2,340

2,330

2,310

2,310

2,310

2,160

1,980

1,910

1,120

717

717

722

722

581

509

509

509

563

1,520

1,980

1,580

1,220

1,220

1,380

2,000

2,080

. 1,660

1,010

May

900

614

386

386

386

386

386

386

386

386

411

527

527

577

795

732

484

338

235

407

653

536

281

101

229

322

131

44

25

24

204

June

514

296

34

23

23

23

23

23

23

23

23

23

23

20

15

15

14

12

11

9.5

9

9

9

9

9

9

7

6

9

9

Observed

Secondfoot-davs

660.5

99.5

107.6

17,578.3

105.8

146.4

19,514.3

44,649

12,185

1,255.5

287.0

5,974.0

14,638

99,622.6

Maximum

31

5.5

3.8

494

4.1

12

2,330

2,340

900

514

9.5

396

624

2,340

Minimum

7

2.9

2.9

1.5

3.2

3.8

2.9

509

24

6-9

9.5

338

2.9

Mean

21.3

3.32

3.47

48.2

3.41

5.05

629

1,488

393

41.8

9.26

193

488

272

Run-off in 

acre-feet

1,310

197

213

34,860

210

290

38,710

88,560

24,170

2,490

569

11,850

29,040

197,600

July

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

Diversions 

in

acre-feett

54,750

25,390

32,970

429,000

3,040

1,470

33,360

39,180

42,190

49,080

57,270

56,410

49,300

444,400

Aug.

10

10

10

10

10

10

10

9.5

9.5

9.5

9.5

9.5

9.5

83

396

396

331

145

348

396

396

396

330

136

159

355

396

396

396

396

396

Sept.

396

396

429

509

505

505

505

500

500

500

568

624

615

624

624

554

522

414

338

338

338

338

422

514

514

514

509

509

509

505

Adjusted for 

diversion

Mean

912

430

540

641

52.9

30.6

1,172

2,147

1,079

867

941

1,110

1,317

884

Run-off in 

acre-feet

56,060

25,590

33,180

463,900

3,250

1,760

72,070

127,700

66,360

51,570

57,840

68,260

78,340

642,000

tDiversion through .Butt Creek tunnel No. 1, which was computed as the difference in fl 

Butt creek below tunnel No. 1 (unpublished records) and Butt Creek above tunnel No. 1 (p 

records). There is some unmeasured inflow between the two stations.

ow between 

(published

a No gage-height record; discharge interpolated.

9-234 April 1936
FEATHER RIVER BASIN 273

North Fork of leather River at Big Bar, Calif.

Location.- Water-stage recorder, lat. 39°48', long. 121°27', in NEi sec. 6, T. 22 N., 

R. 5 E., a quarter of a mile downstream from Big Bar and 6 miles upstream from intake 

of power plant at Big Bend. Altitude of gage, about 1,320 feet (from topographic map).

Drainage area.- 1,945 square miles.

Records available.- October 1939 to September 1940. February 1911 to August 1930 and 

October 1931 to September 1937, at site three-fourths mile upstream.

Average discharge.- 24 years (1911-12, 1913-20, 1921-30, 1931-37, 1939-40) 2,540 secondfeet.

Extremes.- Maximum discharge during year, 67,800 second-feet Feb. 28 (gage height, 26.85 

feet); minimum, 188 second-feet Nov. 6.

1911-37; 1939-40: Maximum discharge, 83,000 second-feet Dec. 11, 1937 (gage height, 

29.7 feet at present site, from floodmarks), from slope-area computations verified by 

logarithmic plotting; minimum, that of Nov. 6, 1939.

Remarks.- Records good. Flow regulated by Lake Almanor (see p. 271 ), Bucks Creek Reservoir (see p. 281) and diversions.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

S

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

89

30

31

Oct.

1.360

1,470

1,410

1,440

1,460

1,410

1,080

383

1,240

1,480

1,490

1,570

1,560

1,450

622

1,200

1,470

1,470

1,480

1,500

1,300

505

1,100

1,330

1,390

1,040

905

726

969

1,190

1,210

Hov.

1,170

1,120

696

565

265

712

1,280

1,280

1,330

1,200

609

259

739

1,500

1,480

1,530

1,560

1,290

782

720

1,160

1,140

910

320

438

648

860

914

1,120

1,150

-

Dec.

1,260

796

735

1,410

1,360

1,500

1,530

1,540

2,070

2,640

2,330

1,520

1,640

1,500

1,300

677

656

916

1,220

1,660

1,290

1,110

853

625

525

771

1,070

1,100

986

1,080

1,630

Jan.

5,S10

9,280

4,540

5,820

3,780

2,940

2,260

6,860

8,530

7,030

5,880

4,770

3,610

2,720

2,370

2,430

2,260

2,200

2,160

1,800

1,450

2,170

2,070

2,200

2,760

8,130

5,670

3,860

3,470

3,140

2,870

Feb.

2,760

2,690

4,560

6,410

6,300

7,220

6,500

5,490

4,420

3,810

3,310

3,100

3,000

3,200

2,950

2,700

2,830

2,880

2,770

2,560

2,610

2,190

2,140

2,240

3,780

12,400

51,500

60,900

40,100

_

-

Itonth

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

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

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

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

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

Water year 1939-4

Mar.

23,700

15,200

11,400

9,640

8,730

7,920

7,550

6,770

6,420

6,240

5,950

5,710

5,120

4,830

4,650

4,310

4,970

4,650

3,990

4,720

4,550

4,330

4,090

4,210

5,600

11,200

18,400

18,300

26,800

54,200

41,500

Apr.

27,000

19,000

15,500

13,700

12,200

11,100

10,700

10,200

9,010

8,440

7,410

6,350

6,360

6,770

7,720

7,380

6,560

6,400

6,320

5,700

6,050

7,660

7,380

6,360

6,140

6,360

7,090

7,330

6,850

5,090

-

Secondfoot-days

38,210

28,747

39,300

-

124,840

257,320

345,650

270,130

124,160

58,960

46,950

48,660

58,330

1,441,257

May

4,850

5,120

4,960

4,870

4,510

4,670

4,340

4,450

4,350

4,520

4,390

4,100

4,690

4,670

4,610

4,510

4,240

4,240

3,580

3,520

3,880

3,930

3,540

3,230

3,080

3,330

3,080

2,750

2,630

2,650

2,870

Maximum

1,570

1,56O

2,640

-

9,280

60,900

54,200

27,000

5,120

3,230

1,700

1,880

2,160

60,900

June

3,230

3,120

2,710

2,550

2,480

2,380

2,340

2,230

1,460

1,890

2,060

2,010

1,960

1,890

1,840

1,460

1,540

1,780

1,710

1,730

1,740

1,780

1,320

1,480

1,720

1,740

1,770

1,730

1,720

1,590

-

July

1,650

1,690

1,700

1,510

1,570

1,640

1,500

1,540

1,580

1,610

1,590

1,570

1,480

1,400

1,490

1,500

1,500

1,500

1,520

1,510

1,380

1,490

1,530

1,490

1,470

1,440

1,460

1,330

1,440

1,440

1,430

^Mrlffnini

383

259

525

-

1,4-50

2,140

3,990

5,090

2,630

1,320

1,330

1,260

1,700

259

Aug.

1,41*0

1,390

1,310

1,280

1,410

1,450

1,430

1,430

1,420

1,420

1,260

1,400

1,430

1,430

1,650

1,810

1,710

1,440

1,620

1,850

1,870

1,880

1,840

1,520

1,400

1,620

1,820

1,780

1,840

1,820

1,720

Mean

1,233

958

1,268

-

4,027

8,873

11,150

9,004

4,005

1,965

1,515

1,570

1,944

3,938

Sept.

1,700

1,700

1,750

1,990

2,040

2,060

1,870

1,730

1,860

1,960

2,010

2,150

2,160

2,110

1,870

2,090

2,070

2,020

1,890

1,920

1,860

1,710

1,820

2,070

2,060

2,050

2,060

2,070

1,820

1,860

-

Run-off in 

acre-feet

75,790

57,020

77,950

-

247,600

510,400

685,600

535,800

246,300

116,900

93,120

96,520

115,700

2,859,000

Peak discharge.- Feb. 28 (9 a.m.) 67,800 sec.-ft.; Mar. 30 (11 a.m.) 57,600 sec.-ft.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
2.74 FEATHER RIVER BASIN

Feathar River near Orovllle, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 121°29', In NEi sec. 2, T. 19 N., R. 

4 E., 2 miles downstream from confluence of North and Middle Forks and 3 miles northeast of Orovllle. Datum of gage Is 182.02 feet above mean sea level (general adjustment of 1929).

Drainage area.- 3,611 square miles.

Records available.- October 1934 to September 1940. January 1902 to September 1934 at 

site at Orovllle, 5 miles downstream (different datum).

Average discharge.- 38 years, 5,794 second-feet.

Extremes.- Maximum discharge during year, 152,000 second-feot Feb. 27 (gage height, 68.1 

feet); minimum, 578 second-feet Nov. 6 (gage height, 4.05 feet).

1902-34 at Orovllle: Maximum discharge, 230,000 second-feet (revised on basis of 

1937 rating) Mar. 19, 1907 (maximum gage height observed, 28.2 feet; probably higher 

during the night); minimum, 300 second-feet (estimated, regulated), Nov. 9, 1931 

(gage height, -1.7 feet).

1934-40 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 A d studies and verified by slope-area computations, 

minimum, 462 second-feet Dec. 10, 1934 (gage height, 3.55 feet).

Remarks.- Records excellent. Flow regulated by power plants and storage In Lake Almanor 

(p. 271 ), Bucks (p. 281 ), Butt Valley, and other smaller reservoirs.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

S

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.

1,440 

1,670 

1,640 

1,580 

1,530

1,740 

1,500 

790 

1,240 

1 S 520

1,640 

1,620 

1,630 

1,420 

1,050

1,240 

1,500 

1,530 

1,540 

1,540

1,430 

895 

1,220 

1,650 

1,580

1,320 

1,300 

1,040 

1,190 

1,360 

1,380

HOT.

1,370 

1,260 

954 

912 

615

S92 

1,430 

1,410 

1,380 

1,300

937 

624 

869 

1,590 

1,590

1,630 

1,620 

1,500 

892 

1,030

1,280 

1,350 

1,070 

708 

884

912 

1,170 

1,230 

1,310 

1,340

Dec.

1,340 

1,020 

966 

1,630 

1,570

1,580 

1,740 

1,660 

1,870 

3,530

5,930 

2,410 

2,290 

1,900 

1,730

1,320 

966 

1,280 

1,560 

1,930

1,580 

1,500 

1,330 

966 

772

1,150 

1,250 

1,360 

1,460 

1,780 

2,010

Jan.

7,720 

33,000 

10,100 

12,700 

7,940

6,100 

5,650 

17,900 

20,500 

15,900

15,000 

13,500 

9,260 

7,020 

5,860

5,400 

4,800 

4,470 

4,260 

3.S10

3,300 

3,540 

3,690 

3,630 

6,580

22,100 

15,000 

10,800 

9,260 

7,860 

7,020

Feb.

6,700 

6,280 

11,300 

15,500 

16,600

17,100 

16,000 

13,000 

10,600 

9,OSO

7,940 

7,060 

6,980 

9,040 

7,420

6,380 

7,300 

7,220 

6,320 

5,S20

5,540 

5,200 

4,860 

5,160 

8,020

24,200 

113,000 

120,000 

68,800

Month

Oot 

Hov 

Dec

0

Jan 

Pel) 

Mar 

Apr 

toy 

Jun 

Jul 

tog 

Sep

W

uary

11. ....................................

ater year 1939-4

Mar.

45,400 

31,400 

23,400 

19,100 

16,900

15,200 

14,000 

13,300 

12,400 

11,900

11,300 

10,400 

9,590 

9,010 

8,680

8,620 

8,200 

7,940 

7,860 

7,840

7,890 

8,210 

8,160 

8,420

11,300

27,200 

41,300 

32,500 

62,300 

131,000 

87,300

Apr.

55,200 

38,000 

29,000 

24,600 

21,100

18,300 

17,900 

17,400 

15,900 

15,000

14,000 

12,700 

12,600 

12,300 

13,700

12,900 

11,700 

11,500 

11,200 

10,900

10,800 

12,200 

12,000 

10,900 

10,400

10,400 

10,700 

10,900 

10,700 

8,870

Secondfoot-days

43,725 

35,059 

53,380

796,134

293,670 

548,420 

718,020 

484,770 

211,740 

89,850 

59,300 

56,200 

65,370

2,659,504

May

8,440 

8,630 

9,260 

9,330 

8,640

8,030 

7,680 

7,600 

7,570 

7,840

3,020 

7,510 

7,760 

7,720 

7,570

7,190 

6,960 

6,620 

5,990 

5,750

6,100 

6,150 

5,780 

5,500 

5,120

5,250 

4,980 

4,670 

4,450 

4,360 

5,220

Mfly^wnim

1,740 

1,630 

5,930

7,200

23,000 

120,000 

131,000 

55,200 

9,330 

5,100 

2,180 

2,130 

2,440

131,000

June

5,100 

4,940 

4,550 

4,310 

4,100

83,900 

a3,700 

f3,500 

2,790 

2,900

3,220 

3,100 

2,980 

2,840 

2,760

2,410 

2,380 

2,600 

2,520 

2,500

2,460 

2,450 

2,030 

2,130 

2,350

2,330 

2,340 

2,280 

2,250 

2,130

July

2,0.50 

2,170 

2,180 

2,030 

1,990

2,140 

1,920 

1,910 

1,970 

2,020

2,090 

1,920 

1,950 

1,830 

1,840

1,870 

1,930 

1,S70 

1,930 

1,SSO

1,800 

1,820 

1,860 

1,810 

1,820

1,320 

1,790 

1,750 

1,700 

1,780 

1,760

Aug.

1,700 

1,680 

1,640 

1,600 

1,600

1,700 

1,660 

1,670 

1,720 

1,610

1,630 

1,630 

1,640 

1,700 

1,900

2,130 

1,980 

1,690 

1,730 

2,090

2,120 

2,110 

2,040 

1,670 

1,620

1,940 

1,990 

2,010 

2,000 

2,070 

1,930

Minimum Mean

790 1,410 

615 1,169 

772 1,722

615 2,181

3,300 9,473 

4,860 18,910 

7,840 23,160 

8,870 16,160 

4,360 6,830 

2,030 2,995 

1,700 1,913 

1,600 1,813 

1,820 2,179

615 7,266

Sept.

1,370 

1,320 

1,900 

2,140 

2,310

2,360 

2,160 

1,970 

2,040 

2,190

2,250 

2,330 

2,440 

2,360 

2,100

2,320 

2,230 

2,270 

2,190 

2,220

2,060 

1,970 

2,090 

2,270 

2,280

2,280 

2,270 

2,330 

2,050 

2,250

Run-off in 

acre-feet

86,730 

69,540 

105,900

1,579,000

582,500 

1,088,000 

1,424,000 

961,500 

420,000 

173,200 

117,600 

111,500 

129,700

5,275,000

Peak discharge.- Jan. 2 (8 a.m.) 25,900 sec. -ft.; Jan. S (8 p.m.) 25,000 sec. -ft.; Jan. 26 (1 

p.m.) 30,500 sec. -ft.; Feb. 27 (12 p.m.) 152,000 sec. -ft.; Mar. 26 (9 p.m.) 57,300 sec. -ft.; Mar. 

30 (12 m.) 140,000 sec. -ft. 

a No gage-height record; discharge Interpolated, 

f Discharge computed from partly estimated gage height.

ebruary 1936

UNITED STATES DEPARTMENT OP THB INTERIOR 

Geological Survey
FEATHER RIVER BASIN 275

Feather River at Nicolaus, Calif.

Location.- Water-stage recorder, lat. 38°54'00", long. 121°35'05", at Nicolaus, Sutter 

County, 0.4 mile downstream from highway bridge. Zero of gage is Bet to datum of 

Corps of Engineers, U. 3. Army.

Records available.- June 1921 to October 1940 (low-water periods only) in reports of 

Geological Survey. 1920-21 and 1926-40 (gage heights for high-water periods) in 

reports of Division of Water Resources, Department of Public Works, State of CalExtremes.- Minimum discharge during period June to October 1940, 406 second-feet Aug. 

7 (gage height, 22.67 feet).

1921-40: No flow Aug. 2-18, 1924, July 11-22, 24, 26, Aug. 1, 1931.

jteipartajv- Records good June 1 to July 15, fair July 16 to Oct. 31. Western, Sutter 

Butte, and other canals above station, divert a large amount of water. Hany 

reservoirs and power plants upstream.

Rating table for period June 1 to October 31, 1940 (gage height, In feet, and discharge,

In second-feet)

22.6

23.0

83.5

24.0

24.5

375

S60

835

1,175

1,580

25.0

25.5

26.0

26.5

27.0

2,040

2,550

3,120

3,740

4,400

27.5

28.0

28.5

29.0

29.8

5,100

5,800

6,520

7,270

8,470

Discharge, In second-feet, 1939-40

Day

1

2

S

4

S

6

7

S

9

10

11

12

13

14

IS

16

17

IS

19

20

21

22

28

24

25

26

27

26

29

SO

SI

Oct.

1,370

1,340

1,480

1,580

1,570

1,620

1,740

1,810

1,490

1,020

1,280

1,240

1,300

1,370

1,360

1,140

847

1,010

1,160

1,210

1,220

1,200

980

733

1,060

1,390

1,340

1,140

1,000

669

1,040

Month

1939

1940

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

The perl<>d. .............................

Seoondfoot-days

38, 929

100,870

22,030

18,531

46,501

64,880

-

June

8,350

8,350

7,460

6,440

5,930

5,730

5,420

5,040

4,830

4,200

3,520

3,730

3,400

2,930

2,500

2,130

1,820

1,560

1,870

1,840

1,730

1,690

1,570

1,440

1,120

1,230

1,290

1,270

1,240

1*240

-

Mn-^i^rn

1,810

8,350

1,180

 817

1,920

2,940

-

July

1,180

1,050

1,030

1,030

1,040

889

829

895

770

714

682

731

764

748

687

621

585

595

605

600

654

616

560

525

535

501

506

525

535

530

478

Aug.

478

520

535

590

530

474

438

452

510

515

555

510

501

492

488

515

676

793

748

621

560

720

764

764

742

590

506

616

736

775

817

Sept.

835

764

709

726

817

1,040

1,

1,

1,

510

330

530

1,400

1,520

1,

1,

1,

370

340

770

1,830

1,780

1,

1,!

1,!

720

JOO

920

1,900

1,840

1,1,'

1,1

770

?50

580

1,830

1,850

Iff

1»<

l.«

l,f

Miniaum Mean

733 lp 256

1,120 3,362

478 711

438 598

709 1, 550

1,630 2,093

-

310

320

370

370

Oct.

1,720

1,880

1,930

1,940

1,930

1,920

1,870

1,720

1,830

1,840

1,920

2,030

2,050

1,990

1,970

2,080

2,150

2,170

2,220

2,330

2,280

2,240

2,370

2,410

2,620

2,940

2,350

1,880

1,680

2,210

2,410

Run-off in 

acre-feat

77,210

200,100

43,700

36.76C

92, 23C

128,700

501,600
276 FEATHER RIVER BASIN

Butt Creek above tunnel Vo. l,near Prattville, Calif.

Location.- Water-stage recorder, lat. 40°12', long. 121°12', in NWi sec. 16, T. 27 N., 

R. 7 E., about LJ- miles upstream from outlet of tunnel No. 1 from Lake Almanor to 

Butt Creek and 2-| miles southwest of Prattville. Altitude of gage, about 4,300 

feet.

Drainage area.- 64.3 square miles.

Records available.- October 1936 to September 1937, October 1938 to September 1940.

Extremes.- Maximum discharge during year, 1,500 second-feet Feb. 28 (gage height, 

5.75 feet); minimum, 7 second-feet Dec. 25.

1936-37, 1938-40: Maximum discharge, that of Feb. 28, 1940; minimum, 3.2 secondfeet Dec. 11, 1936.

Remarks.- Records good except those for periods affected by ice and periods of no gage- 

'height'record, which are fair. Wallack ditch» above station, occasionally diverts 

several second-feet into Yellow Creek Basin.

Cooperation.- Water-stage recorder graph and results of five discharge measurements 

furnished by Pacific Gas and Electric Co. in connection with a Federal Power 

Commission project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

es

23

24

25

26

27

28

29

30

31

Oct.

27

23

19

19

18

21

21

18

18

18

18

18

18

18

18

18

18

18

16

18

18

18

18

22

21

19

18

18

18

18

18

Nov.

18

18

18

18

18

18

18

18

19

19

19

18

18

18

18

18

18

18

18

18

18

18

18

18

24

22

19

19

18

18

-

Dec.

18

18

18

18

18

19

19

21

64

79

74

32

27

24

23

22

29

25

22

21

19

17

19

19

16

19

19

21

34

55

66

Jan.

125

170

81

bllO

63

51

39

43

b90

61

55

57

22

51

b60

b60

b45

b40

b35

b30

b30

b30

b30

b30

b30

b80

b80

43

50

45

38

Feb.

53

59

97

112

114

162

134

102

39

89

79

68

a65

a65

a60

a55

a45

a 50

53

51

52

50

49

51

89

164

858

1,220

595

.

-

Month

Calendar year 1939. .....................

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

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

Hav. ................................. .. .

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

Ally. .....................................

Water year 1939-4W. .....................

Mar.

353

278

224

194

176

162

157

164

157

143

133

121

115

114

115

127

127

122

126

132

138

146

157

194

237

481

514

352

504

895

634

Apr.

446

342

278

237

206

191

196

180

168

162

162

162

170

178

178

162

157

159

162

160

157

157

151

146

138

133

127

122

120

115

-

Seoondfoot-days

588

555

875

1J.159

1,774

4,730

7,492

5,422

2,839

1,159

815

700

758

27,707

May

115

120

124

143

128

116

109

105

105

108

109

107

105

104

100

95

91

87

84

80

76

70

69

68

65

64

61

58

54

59

60

|tfly<Tgmm

27

24

79

137

170

1,220

895

446

143

57

23

26

28

1,220

June

57

56

53

53

51

43

47

46

45

44

42

40

37

36

35

34

34

34

34

34

34

33

32

29

29

a.29

a28

a23

28

29

-

July

28

27

27

27

27

27

27

27

27

26

26

26

26

26

26

26

26

26

26

25

25

25

26

26

26

26

26

27

27

26

26

Minimum

18

18

16

12

22

45

114

115

54

28

25

22

22

16

Aug.

26

26

26

25

24

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

23

22

22

22

22

22

22

Mean

19.0

18.5

23.2

30.6

57.2

163

242

181

91.6

38.6

26.3

22.6

25.3

75.7

Sept.

22

22

22

23

24

24

24

24

24

24

24

24

26

a26

27

a27

a27

a27

a27

a27

27

26

26

26

26

26

28

26

26

26

-

Run-off in 

acre-feet

1,170

1,100

1,740

22,150

3,520

9,380

14,860

10,750

5,630

2,300

1,620

1,390

1,500

54,960

Peak discharge.- Dec. 10 (11 p.m.) 179 sec.-ft.; Jan. 1 (10 p.m.) 224 sec.-ft.; Feb. 6 (4 p.m 

236 sec.-ft.; Feb. 28 (2 a.m.) 1,500 sec,.-ft.; Mar. 26 (9 p.m.) 900 sec.-ft.; Mar. 30 (6 a.m.) 

sec.-ft.

a Ho gage-height record; discharge computed on basis of records for station below tunnel and 

Interpolation.

b Stage-discharge relation affected by Ice.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
FEATHER RIVER BASIN 

Butt Creek below tunnel No. 1, near Prattvllle, Calif.

277

Location.- Water-stage recorder and concrete control, lat. 40°10', long. 121°11', In 

NWt sec. 22, T. 27 N., R. 7 E., about 400 feet downstream frora outlet of tunnel No. 1 

from Lake Almanor to Butt Creek, and 3 miles southwest of Prattvllle. Altitude of 

gage, about 4,200 feet (from topographic nap).

Records available.- October 1938 to September 1940.

Extremes.- 1933-39: mxlmum discharge during water year, 1,000 second-feet liar. 14 (gage 

height, 2.79 feet); minimum, 36 second-feet June 13.

1939-40: mxlmum discharge during water year, 2,170 second-feet Mar. 30 (gage 

height, 4.37 feet); minimum, 36 second-feet Dec. 3.

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

The difference In flow at this station and at the station above tunnel No. 1 (see 

preceding page) shows the amount of water diverted from Lake Almanor to Butt Creek and 

Butt Valley Reservoir plus natural local Inflow which may vary from about 5 secondfeet during dry periods to possibly 200 second-feet, momentarily, during floods.

Cooperation.- Water-stage recorder graph and results of several discharge measurements 

furnished by Pacific Gas and Electric Co. In connection with a Federal Power Commission 

project.

Discharge, in second-feet, 1938-40 

1936-39 '

D«y

1

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.

954

946

946

946

946

665

66

62

61

61

67

559

946

946

954

946

946

946

954

970

962

962

954

962

954

962

954

954

962

978

970

HOT.

978

962

954

970

970

962

954

954

954

962

962

954

962

954

954

946

954

946

946

938

938

930

930

930

921

921

758

69

69

69

-

Dec.

70

84

99

88

76

70

69

67

67

66

61

59

61

62

64

62

336

938

946

946

946

954

954

946

946

946

946

946

930

930

930

Jan.

938

938

938

946

994

962

946

946

946

946

938

938

938

930

930

930

938

946

946

946

946

946

946

946

938

946

946

938

946

946

946

Feb.

930

946

954

954

954

596

64

62

61

66

64

62

62

62

62

62

61

61

61

525

938

938

938

938

938

946

946

938

_

-

Mar.

946

938

938

946

962

962

970

946

962

978

986

986

994

1,000

618

70

74

82

86

92

103

109

118

123

128

159

128

114

118

118

111

Apr.

116

114

123

123

114

111

109

114

109

100

96

98

90

a85

80

82

84

84

86

84

84

80

82

78

a 72

66

66

66

66

65

May

62

60

59

57

57

56

a56

a54

a50

a48

a48

a46

a44

a44

382

967

967

967

967

967

980

800

a60

a58

57

57

54

53

52

50

49

June

45

44

44

42

41

40

40

40

40

40

40

39

38

39

39

240

954

954

954

954

954

954

948

948

948

948

948

948

941

934

July

934

922

915

915

915

915

915

922

915

915

908

908

908

915

922

922

922

922

922

922

922

922

922

922

922

922

922

922

922

922

922

Aug.

922

922

915

915

915

915

915

915

915

915

915

915

915

908

908

908

908

908

915

915

908

908

908

908

915

908

908

908

908

908

908

Sept.

908

908

908

908

908

908

908

908

908

908

908

908

906

908

908

908

908

908

908

908

908

908

908

908

908

908

908

908

908

915

a Ho gage-height record; discharge computed on basis of records for station above tunnel No. 

near Prattvllle, and operation records of tunnel No. 1.
278

FEATHER RIVER BASIN

Discharge, in second-feet, of Butt Creek below tunnel No. 1 near Prattville, Calif., 1938-40 Contd.

1939-40

Mar. Apr. Hsy July Aug. Sept.

922

922

915

915

908

908

908

908

908

908

908

a908

a908 

a908 

a908 

a908 

a908 

a908

a908 

590

40

41

40

908

908

908

a908

a908

a908

a908

a860

a40

40

39

502

902

902

902

902

948

994

409

50

46

41

47

44

41

469

908

908

908

908

908

915

934

934

960

857

204

135

132

83

72

66

65

125

92

83 

a83 

a44 

a74 

a90

a62

a60

53

52

50

50

52

54

114

114

83

74

118

137

137

192

161

125

109

111

100

86

83

83

77

72

64

71

71

70

1,360

635

374

295

241

613

1,080

1,070

1,070

1,080

1,070

1,050

1,040

1,030

1,020

1,020

756

144

144

140

140

147

154

164

174

219

728

1,460

1,470

1,280

1,480

2,020

1,640

1,400

1,290

1,220

1,190

1,160

1,130

1,130

1,110

1,110

1,100

1,100

1,100

1,120

1,130

1,120

1,110

781

184

189

195

189

192

680

1,080

1,080

987

161

152

149

634

1,040

1,050

806

171

156

687

954

132

130

122

135

132

606

1,030

1,030

1,020

1,080

1,010

1,010

1,000

1,000

994

994

994

994

994

994

994

987

987

987

987

987

994

994

987

702

309

980

980

980

980

586

204

974

974

974

974

974

613

446

974

974

974

974

974

974

974

987

994

994

994

994

994

994

994

994

994

994

994

994

994

994

994

994

994

987

987

987

987

987

987

987

987

987

987

75

573

994

994

994

987

987

987

987

987

987

987

987

987

987

987

987

987

987

987

980

980

980

980

980

980

980

980

980

974

974

974

974

974

974

974

974

974

600

53

574

987

987

980

974

967

967

967

967

896

57

53

a No gage-height record; discharge computed on basis of records for station above tunnel No. 

near Prattville, and operation records of tunnel No. 1.

Monthly discharge, in second-feet, 1938-40

Secondfoot-days

Run-off in 

acre-feet

October 1938 ........

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

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

Calendar year

January 1939 ........

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

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

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

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

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

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

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

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

Water year 1938-39

October 1939 ........

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

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

Calendar year 1939

January 1940 ........

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

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

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

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

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

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

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

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

Water year 1939-40

24,461

25,671

14,665

29,270

14,189

15,865

2,727

8,228

14,138

28,496

28,274

27,247

233,231

28,190

13,358

17,496

227,478

3,309

5,471

24,313

25,173

24,110

26,371

30,731

29,271

25,616

253,409

978

978

954

954

1,000

123

980

954

934

922

915

1,000

922

908

994

1,000

857

1,360

3,020

1,400

1,050

994

994

994

987

2,020

70

65

44

38

908

908

38

37

64

140

149

130

204

974

75

53

789

856

473

944

507

512

90.9

265

471

919

912

908

639

909

445

564

623

107

189

784

839

778

879

991

944

854

43,520

50,920

29,090

58,060

28,140

31,470

5,410

16,320

28,040

56,520

56,080

54,040

462,600

55,910

26,500

34,700

451,200

10,850

48,220

49,930

47,820

52,310

60,950

58,060

50,810

502,600
FKATHER RIVER BASIN 279

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 14 miles downstream from town 

of Crescent mils. Altitude of gage, about 3,500 feet (from topographic map).

Drainage area.- 7^6 square miles.

Records available.- October 1930 to September 1940. January 1906 to December 1909 and 

September 1911 to March 1918, at site 500 feet upstream.

Average discharge.- 19 years (1906-9, 1911-17, 1930-40), 527 second-feet.

Extremes.- Maximum discharge during year, 14,000 second-feet Feb. 28 (gage height, 16.07 

feet), from rating curve extended above 4,000 second-feet by logarithmic plotting; 

minimum, 3.0 second-feet Aug. 15.

1906-9; 1911-18; 1930-40: Maximum discharge, that of Feb. 28, 1940; minimum, 1.7 

second-feet Aug. 25, 1931.

Remarks.- Records good. Diversions above station for irrigation In Indian and Genesee

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

18

13

14

15

16

17

18

19

80

81

28

83

24

25

26

27

28

29

30

31

Oct.

9

10

13

15

15

le

27

25

24

23

SK

22

22

22

22

22

21

29

29

26.

26

25

25

30

44

44

39

37

40

41

40

HOT.

31

27

28

27

34

37

35

34

34

34

34

35

35

34

35

35

35

35

35

35

35

37

37

38

41

46

45

44

43

42

-

Dec.

41

41

41

41

41

42

42

42

53

81

177

148

114

93

81

73

73

70

68

69

66

61

58

61

57

55

57

57

58

61

72

Jan.

137

544

69O

85O

773

596

446

516

1,240

1,290

1,100

892

695

532

424

337

284

246

226

215

198

184

181

182

228

509

715

790

740

672

622

Feb.

622

640

746

1,050

1,350

1,550

2,110

1,940

1,420

1,080

922

806

690

73O

690

609

636

663

578

509

464

470

470

505

681

1,320

6,920

13,000

11,900

-

-

Month

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

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

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

Water year 1939-4

Mar.

7,120

4,16O

2,910

2,240

1,670

1,610

1,450

1,430

1,570

1,650

1,500

1,290

1,110

1,000

94O

970

1,070

1,180

1,200

1,240

1,340

1,470

1,630

1,830

2,130

2,710

5,610

6,430

5,240

9,450

10,300

Apr.

7,310

4,820

3,64O

3,000

2,510

2,150

1,940

1,860

1,820

1,770

1,730

1,750

1,840

2,030

2,170

2,100

1,820

1,650

1,620

1,670

1,690

1,680

1,660

1,600

1,500

1,400

1,390

1,330

1,220

1,120

-

Seoondfoot-days

807

1,077

2,094

44,904.9

17,054

55, 091

85,650

63,790

24,736

4,162

763

167.3

635.4

256,046.7

May

1,070

1,080

1,150

1,250

1,290

1,220

1,1OO

1,010

964

988

1,040

1,050

1,030

982

934

674

8O6

730

668

622

574

544

516

491

456

433

411

364

366

346

357

lh.-ri.nim

44

46

177

1,160

1,290

13,000

10,300

7,310

1,290

357

55

9.5

47

13, 000

June

357

334

310

297

284

269

241

219

2OO

179

157

130

93

85

82

81

74

68

68

70

67

68

64

64

62

58

52

46

41

42

-

July

51

55

54

46

43

39

40

37

30

24

24

23

22

26

26

24

20

20

20

20

18

15

14

12

12

12

11

11

11

12

11

mT^mviB

9

27

41

2.6

137

470

940

1,120

346

41

11

3.4

4.9

3.4

Aug.

9.5

7.5

e

e

8,5

8

9

9

8

e

4.1

3.7

3.7

3.5

3.4

3.5

3.5

3.7

3.7

3.9

4.1

4.1

4.3

4.3

4.E

4.5

4.7

4.7

4.7

4.5

4.7

Mean

26.0

35.9

67.5

123

550

1,900

2,763

2,126

798

139

25.3

5.40

21.2

700

Sept.

5

4.9

5

6.5

7.5

8

9.5

10

10

11

11

11

12

14

15

16

18

22

26

40

37

32

36

42

47

34

36

37

36

36

-

Run-off in 

acre-feet

1,600

2,140

4,150

89,060

33,830

109,300

169,900

126,500

49,060

8,260

1,550

332

1,260

507,900

Peak discharge.- Feb. 28 (6 p.m.) 14,000 sec.-ft. ; Mar. 27 (11:30 p.m.) 7,350 sec.-ft.) Mar. 31 

3 a.m.) 11,000 sec.-ft.

9-882 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Oeological Surrey
260 FEATHER RIVER BASIN

Spanish Creek at Keddle, Calif.

Location.- Water-stage recorder, lat. 40°00'05", long. 120°57'20", In NEi sec. 27, T. 

25 N., R. 9 E., 200 feet upstream from Blackhawk Creek and 0.9 mile southeast of 

Keddle. Altitude of gage, about 3,250 feet (fron topographic map).

Drainage area.- 184 square miles.

Records available.- October 1933 to September 1940. October 1911 to September 1933 at 

site 1.2 miles downstream.

Average discharge.- 20 years (1911-19, 1921-33), 230 second-feet, at former site.

Extremes.- Maximum discharge during year, 10,600 second-feet Feb. 27 (gage height, 11.80 

feet); minimum 9.5 second-feet Aug. 24.

1911-40: Maximum discharge, 11,500 second-feet Dec. 11, 1937 (gage height, 12.43 

feet), from rating curve extended above 5,000 second-feet OR basis of Ai/3"studies; 

minimum, 3.8 second-feet Aug. 12, 1934.

Remarks.- Records good. Water diverted above station for Irrigation In American Valley.

Rating table, water year 1939-40 (gage height. In feet, and discharge. In second-feet)

0.9 

1.0 

1.2 

1.4 

1.6

1.9 

2.2 

2.5 

2.8

3.1

62

96

158

246

365

3.5 

4.0 

4.5 

5.0 

6.0

565

695

1,330

1,790

2,620

7.0

6.0

9.0

10.0

11.0

3,960 

5,280 

6,540 

7,940 

9,40O

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

16

19

20

21

22

23

24

25

26

27

26

29

30

31

Oct.

30

48

40

35

34

45

50

41

37

36

34

34

33

33

32

32

32

32

32

33

33

33

32

49

65

50

45

43

42

40

39

Hov.

38

37

38

39

39

39

39

39

39

40

39

40

39

39

39

38

3S

38

37

36

36

36

36

36

42

55

46

43

42

41

-

Dec.

40

40

40

39

39

44

42

41

76

161

270

113

83

70

64

60

60

57

55

58

54

50

51

50

46

47

46

47

49

49

66

Jan.

300

1,000

396

769

349

224

190

1,200

1,640

880

771

661

392

285

228

187

168

151

140

131

123

119

- 119

125

212

1,530

959

516

388

337

317

Feb.

329

297

729

1,090

606

872

771

538

420

357

317

274

274

401

325

274

365

374

305

266

245

234

238

313

805

1,930

9,070

9,110

4,550

_

-

Month

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

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

Calendar year 1939 ......................

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

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

toy.......................................

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

Water year 1930-4 0.. ........ ...

Mar.

2,190

1,400

1,010

799

679

589

538

532

526

480

430

378

341

321

3C9

329

353

325

313

321

325

341

365

392

543

1,160

2,330

1,380

3,110

8,240

5,060

Apr.

2,460

1,590

1,230

1,030

635

711

661

643

607

565

538

538

560

589

595

510

465

450

460

470

465

465

460

420

392

388

353

325

313

297

-

Secondfoot -days

1,194

1,103

2,007

29,474.5

14,807

3&.87Q

35,409

19,385

8,456

2,381

947

549

1,041

123,238

Hay

309

337

370

440

378

329

305

301

325

357

365

353

341

321

301

278

270

259

248

238

231

221

211

205

196

184

171

156

146

144

166

MajcJLsnm

65

55

270

490

1,640

9,110

8,240

2,460

440

168

46

22

45

9,110

June

166

151

137

151

131

121

113

105

95

69

81

76

71

64

65

63

60

56

53

54

53

51

50

48

46

46

45

44

44

50

-

July

46

44

40

34

36

35

36

36

34

37

36

34

34

33

33

30

28

28

27

27

27

27

27

24

24

23

23

22

20

21

21

M1n1nflTiB

30

36

39

5.5

119

234

309

297

144

44

20

10

20

10

Aug.

20

20

20

20

19

19

16

17

17

17

17

17

16

16

16

16

17

17

17

16

16

16

14

10

20

22

20

20

20

20

19

Mean

38.5

39.4

64.7

80.8

478

1,237

1,142

646

273

79.4

30.5

17.7

34.7

337

Sept.

20

24

25

26

30

32

36

32

30

30

30

29

32

34

-34

36

37

41

44

41

40

39

38

36

36

37

43

45

42

40

-

Run-off in 

acre-feet

2,370

2,350

3,960

56,460

29,370

71,160

70,230

38,450

16,770

4,720

1 880

l|o90

2,060

244,400

Peak discharge.- Jan. 4 (7 

2,340 sec.-ft.; Feb. 27 (10 a 

9,550 sec.-ft.

i.m.) 1,210 sec.-ft.; Jan. 

,m.) 10,600 sec.-ft.; Mar.

9 (2 a.m.) 2,150 sec.-ft.; Jan. 26 (4 p.m.) 

27 (3 a.m.) 3,260 sec.-ft.; tor. 30 (1 p.m.)

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
FEATHER RIVER BASIN 281

Bucks Creek Reservoir near Bucks ranch, Calif.

Location.- Water-stage recorder, lat. 39°54', long. 121°12', in IJWi sec. 33, T. 24 N., 

R. 7 E., at dam on Bucks Creek, 2 miles northwest of former Bucks ranch and 15 miles 

west of Quincy. Datum of gage is 5,000 feet above mean sea level; gage readings 

have been reduced to elevations above mean sea level.

Drainage area.- 28 square miles.

Records available.- October 1928 to September 1940.

Extremes.- Maximum contents during year, 105,100 acre-feet Mar. 31 (elevation, 5,156.7 

feet}; minimum, 60,800 acre-feet Dec. 21-27 (elevation, 5,130.6 feet).

1938-40: Maximum contents, 105,800 acre-feet June 23, 1938 (elevation, 5,157.1 

feet); minimum, 2,600 acre-feet July 28, 1927 (elevation, 5,075.5 feet).

Remarks.- Reservoir Is formed by concrete-faced rock-fill dam completed In 1927; storage 

began In May 1927. Capacity, 101,400 acre-feet between elevations 5,064.75 feet 

(sill of outlet gate) and 5,154.85 feet (spillway crest) above mean sea level. 

Released water flows down Bucks Creek to diversion dam, where It enters tunnel that 

discharges Into Grizzly Creek, and thence flows to Bucks Creek power plant. Records 

show total contents at midnight of which 274 acre-feet are not available for release.

Cooperation.- Records furnished by the Pacific Gas & Electric Co., In connection with a 

Federal Power Commission project.

Contents, In acre-feet, water year October 1939 to September 1940

D«y

1

2

S

4

5

6

1

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

SO

31

Oct.

72,700

72,500

72,300

72,200

72,200

72,300

72,300

72,300

72,300

72,200

72, 100

71,900

71,700

71,600

71,400

71,200

71,000

70,800

70,600

70,400

70,000

69,800

69,600

69,400

69,300

69,200

69,200

69,100

69,100

69,100

68,900

Hoy.

68, 800

68,600

63,400

68,200

68,000

67,700

67,600

67,400.

67,300

67,300

67,300

67,300

67,200

67,200

67,200

67, 100

66,800

66,700

66,400

66,300

66,000

65,600

64,800

64,200

64,000

63,800

63, 500

63, 300

63, 100

63,000

-

Dee.

62,900

63,000

63,100

63, 100

63, 100

63,000

62,800

62,600

62,700

62,900

63,200

63,300

63,000

62,800

62,500

62,400

62,300

61,600

61,100

60,900

60,800

60,800

60,800

60, 800

60,800

60, 800

60,800

61,000

61,300

61,500

62,100

Jan.

63, 200

64,600

64,800

65,300

66,400

66,600

66,800

68,300

68,500

69,100

69,400

69,700

69,900

70,000

70,100

70,300

70,400

70,600

70,700

70,800

70,900

70,900

71,200

71,800

72,400

73,600

74,000

74, 300

74,500

74,700

75,100

Feb.

75,200

75,900

76,700

77,300

78,000

78, 800

79,300

79,500

79,700

80,000

80,200

80,400

80,800

81,200

81,400

81,600

82,100

82,200

82,400

82,600

82,700

82,800

83,000

83, 200

83,500

85,900

90, 500

95,400

94,500

-

-

Mar.

94,900

95, 100

95,200

95,300

95,200

95,100

94,900

94,700

94,500

94,500

94,300

94,100

93,800

93,600

93,400

93, 300

93, 100

93, 100

93, 500

93,900

94,300

94,600

95,000

95,600

96,300

98,000

99,600

100,000

101,900

104,000

105,100

Apr.

105,000

104, 400

103,900

103, 700

103,300

103,100

103,000

102,900

103,000

103, 200

103, 400

103, 400

103,400

103, 500

103,500

103,600

103,600

103,700

103,800

103,800

103,900

103,900

103,900

103,900

103,900

103, 800

103, 800

103,700

103,700

103,700

-

n«y

103,700

103,700

103,700

103,700

103, 800

103,800

103,800

103,800

103,800

103,800

103,800

103, 800

103,800

103,800

103,800

103, 700

103,700

103,600

103, 500

103, 500

103,400

103,400

103, 300

103, 300

103, 200

103,200

103, 200

103,200

103, 100

103,100

103,300

June

J.03,300

103, 300

103,300

103, 300

103, 300

103, 200

103, 100

103,000

102,900

102,800

102,800

102,800

102,800

102,700

102,700

102,600

102,600

102, 500

102, 500

102, 500

102,400

102,400

102,300

102,300

102, 100

101,900

101,700

101,500

101,200

101,000

-

July

100,800

100,600

100,300

100,000

99,700

99, 500

99,200

98,900

98,700

98,700

98,600

98,300

98,100

97,800

97,600

97,300

97,000

96,900

96,600

96,400

96,200

96,100

96,000

95,700

95,500

95,300

95,300

95,200

95,200

95,000

94,700

Aug.

94,500

94,200

94,100

94,100

94,000

94,000

94,000

94,000

94,000

94,000

94,000

94,000

93,600

93,100

92,500

92,100

91,800

91, 500

91,300

91,000

90,700

90,500

90,100

89,900

89,600

89,400

89,100

88,800

88,800

88,700

88,700

Sept.

88,700

88,700

88,700

88,600

83,400

88, 100

87,800

87, 600

87,400

87,100

86,900

86.600

36,300

86,100

85,900

85,600

85,400

85,200

85,000

84, 700

84,400

84, 200

83,900

83, 700

83,400

83, 200

82,900

82,700

82,400

82, 200

-

Monthly elevation and contents, water year October 1939 to Septeiiber 1940

Date

Dec. 31..................

Calendar year 1939 ......

Water year 1939-40 ......

Elevation 

(feet)

5,131.4

-

-

Contents 

(acre-feet)

62,100

-

*

-

Change In contents 

during month 

(acre-feet)

-900

-12,700

f9,300
282 FEATHER RIVER BASIN

Grizzly Creek near Storrie, Calif.

Location.- Water-stage recorder, lat. 39°52', long. 131°14', In SWi 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 1940.

Extremes.- Maximum discharge during year, 835 second-feet Mar. 26 (gage height, 5.40 

feet); minimum not known.

1929-32; 1933-40: Maximum discharge, 1,570 second-feet Dec. 10, 1937 (gage 

height, 7.20 feet), from rating curve extended above 150 second-feet on basis of 

velocity-area studies; minimum, 0.1 second-foot Sept. 7-14, 1932.

Remarks.- Records fair except those for periods of missing or incomplete gage-height record, 

wnicn are poor. No diversion or regulation above station.

Cooperation.- Water-stage recorder graph and results of three discharge measurements 

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

6

11 

12

16

81

23

26

Oct.

0.6

.6

2.0

1.6

1.2

1.0 

1.0

.8

.6

1.7

1.6

1.4

1.4

1.4

Hov.

1.2

1.2

1.2

1.2

1.2

1.3

1.3

1.3

1.3

1.3

1.3 

1.3

1.3

1.4

1.4

1.6

1.5

1.4

1.4

1.4

1.3

1.7

1.7

1.5

1.4

1.4

1.2

-

Dec.

1.2

1.3

1.6

1.5

1.6

l.S

1.7

2.2

40

91

39 

7

3.8

3.3

3.1

2.9

5

3.4

3.2

3.2

2.6

2.6

2.3

2.2

5.5

2.2

2.2

2.3

4.0

10

53

Jan.

242

252

86

ISO

53

31

26

14S

136

74

128 

78

42

30

22

19

16

14

12

10

9

9

9

11

53

300

101

59

46

44

46

Feb.

51

56

1S1

156

12S

190

101

66

51

48

42 

35

32

37

29

26

27

23

20

19

18

17

17

24

95

322

603

358

152

_

-

Month

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

Calendar year 1939 ......................

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

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

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

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

Water year 1939-4C

Mar.

104

S4

6S

58

SO

50

54

64

62

54

48 

44

43

42

42

62

60

54

53

55

58

65

104

115

398

21S

140

453

501

212

Apr.

138

109

95

32

69

64

75

SO

SO

75

SO 

97

95

95

81

68

70

76

82

81

80

77

63

53

44

41

37

37

42

43

-

Seoondfoot-days

306.7

3,986.1

2,286 

2 924

3,483 

2,209

393. 5 

157.4 

41.1

12.4 

15.0

12,401.2

May

47

59

58

51

39

41

46

47

42 

37

33

30

27

25

24

22

18

18

15

13

11

9.5

9

8.5

8

7.5

15

19

Ma** 

91

91

300

501 

13S

59 

14 

2.3

~

603

June

14

9

7

6.5

5.5 

4.5

4.3

4.1

3.8

3.5

3.4

3.2

3.1

3.0

2.7

2.5

2.4

2.4

July

2.0

1

0

1.6

1.5

1.2

1.0

1.0

.9

.7

.7

Minimum

1.2

.3

9

42 

37

7.5 

2.4 

.7

-

-

Aug.

> 0.4

Mean

1 04

9.89

10.9

73.7

112 

73.6

28.S 

5.25 

1.33

.4 

.5

33.9

Sept.

> 0.5

-

Run-off In 

acre-feet

64

608

7,910

4,530

6,910 

4,380

1,770 

312 

82

25 

30

24,590

Peak discharge.- Jan. 1 (7j30 p.m.) 433 sec.-ft.; Jan. 4 (1 a.m.) 407 sec.-ft.5 Jan. 26 (7 a.m.) 

591 sec.-ft.; Feb. 27 (4 p.m.) 732 sec.-ft.; Bar.«26 (4 p.m.) 835 sec.-ft.; Mar. 29 (5 p.m.) 716

S°te.- Missing or Incomplete gage-height record Oct. 1, 3-5. 9-23. Apr. 7-11, June 25 to Sept. 30; 

discharge computed on basis of partial gage-height record and results of three discharge measure9-238 February 1936 Oeoiogioal Surrey

-TW HHBHSOR
FEATHER RIVER BASIN 283

West Branch of Feather River near Yankee Hill, Calif.

Location.- Water-stage recorder, lat. 39°42', long. 121°34', in SWi 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 1940.

Average discharge.- 10 years, 297 second-feet.

Extremes.- Maximum discharge during year, 17,500 second-feet Feb. 27 (gage height, 26.70 

feet); minimum, 3.8 second-feet Dec. 27.

1930-40: 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 excellent. Spring Valley ditch (see p. ), diverts water-from Concow 

Creek, below Lake Wilenor (capacity 8,000 acre-feet), for power development and irrigation. Dewey, Miners, and Hendricks canals divert from headwaters of West Branch of 

Feather River into Butte Creek Basin (see p. ) for power development in De Sabla 

and Centerville plants of Pacific Gas & 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.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

S

6 

7 

8 

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

20

81 

88 

83 

84 

85

86 

27 

88 

89 

30 

51

Oct.

6.5 

7 

9 

7 

6

S 

10 

8.5 

7 

6

6 

5.5 

5.5 

5.5 

6

6 

6 

6 

6.5 

7

6.5 

6.5 

6 

16 

38

10 

7.5 

7 

7.5 

7 

7

HOT.

7 

7 

7 

7 

6.5

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

11 

16 

9

8 

8.5 

7 

6.5 

6

Dec.

6 

6 

6 

6

13

21 

7 

7 

2S9 

916

SOS 

191 

100 

71 

40

17 

14 

33 

17 

10

9 

6 

4.6- 

4.2 

4.0

4.0 

3.8 

7.5 

38 

50 

312

Jan.

2,230 

3,290 

970 

1,670 

714

524 

672 

3,140 

2,120 

1,690

1,330 

938 

659 

521 

472

418 

368 

331 

296 

240

216 

200 

193 

198 

847

3,220 

1,300 

864 

686 

614 

584

Feb.

575 

542 

1,SSO 

l.SSO 

1,S40

1,990 

1,440 

1,060 

847 

732

644 

587 

644 

1,080 

738

590 

808 

714 

590 

509

462 

435 

408 

410 

903

4,780 

15,600 

12,300 

5,810

Month

Dot 

Hoi 

Dec

C

Jan 

Pet 

Max 

Apr 

Maj 

Jun 

Jul 

Au« 

Sep

V

ember. .................................

ater year 1939-4

Mar.

3,210 

2,440 

1,360 

1,520 

1,320

1,180 

1,050 

974 

922 

829

788 

727 

604 

562 

544

59S 

595 

532 

508 

505

502 

508 

508 

573 

765

3,410 

2,900 

1,950 

7,870 

14,300 

6,640

Apr.

3,470 

2,410 

1,920 

1,540 

1,240

1,090 

1,090 

1,040 

978 

906

840 

795 

77V 

748 

710

611 

574 

568 

568 

562

559 

565 

553 

520 

500

474 

466 

447 

463 

424

Seoondfoot-days

254.0 

208.5 

3,016.1

29,348.1

31,565 

60,798 

61,194 

27,408 

9,628 

1,840 

249.5 

232.5 

214.0

196,607.6

May

439 

474 

560 

620 

556

452 

409 

404 

400 

373

359 

373 

37S 

361 

332

260 

252 

244 

228 

221

202 

193 

191 

180 

167

151 

128 

112 

107 

178 

324

M«JY*imim

38 

16 

916

916

3,290 

15,600 

14,300 

3,470 

620 

186 

10 

8.5 

9

15,600

June

186 

138 

121 

12S 

108

119 

126 

119 

101 

94

S2 

70 

53 

49 

45

42 

36 

31 

26 

25

22 

20

17 

15 

14

12 

11 

10 

10 

10

July

9.5 

9 

S.5 

8 

8.5

10 

S 

7.5 

8 

S

7.5 

7.5 

7.5 

7.5 

S

S 

S 

S 

8 

8

8 

8 

8 

7.5 

7.5

7.5 

8 

8 

8 

8 

8

Aug.

S 

7.5 

7 

7 

6.5

7 

7 

7 

7 

S

8 

8 

8 

S.5 

S.5

S.5 

8.5 

8.5 

8 

8

8 

7.5 

7 

7.5 

7.5

7.5 

7 

6.5 

6.5 

6.5 

6.5

Sept.

6 

6 

6.5 

8 

8.5

9 

S 

7 

6.5 

6

6.5 

6.5 

7 

7.5 

7

7 

8 

8 

8.5 

8

7 

6.5 

6.5 

6.5 

7

7 

7 

7.5 

7 

6.5

Minimum Mean *£££.£

5.5 8.19 504 

6 6.95 414 

3.8 97.3 5,980

3.8 80.4 58,260

193 1,018 62,610 

408 2,096 120,600 

502 1,974 121,400 

424 914 54,360 

107 311 19,100 

10 61.3 3,650 

7.5 8.05 495 

6.5 7.50 461 

6 7.13 424

3.8 537 390,000

Peak discharge.- Jan. 1 (8:30 p.m.) 4,960 sec. -ft.; Jan. 8 (5 p.m.) 4,300 sec. -ft.) Jan. 26 

(9 a.m.] 5,2OO sec. -ft.; Feb. 27 (9 p.m.) 17,500 sec. -ft.; Mar. 26 (7 p.m.) S,450 sec. -ft.; Mar. 3C 

(9 a.m.) 16,000 sec. -ft.
284 FEATHER RIVER BASIN

Concow Creek near Yankee Hill, Calif.

Location.- Water-stage recorder, lat. 39°46', long. 121°32', In NEi sec. 16, T. 22 N., 

R. 4 E., at diversion dam for Spring Valley ditch, 300 feet downstream from Lake 

Wllenor Dam and 4 miles north of Yankee Hill post office. Altitude of gage, about 

1,850 feet (from topographic nap).

Drainage area.- 14.7 square miles.

Records available.- October 1927 to September 1940.

Average discharge.- 13 years, 13.1 second-feet.

Extremes.- Maximum discharge during year, 1,490 second-feet Feb. 27, Mar. 29, 30 (gage 

height, 3.8 feet); no flow most of year.

1927-40: Maximum discharge, 1,840 second-feet Mar. 26, 1928 (gage height, 5.9 

feet); no flow for many months In each year.

Remarks.- Records good. On Sept. 30, 1939, storage In Lake Wllenor (capacity 8,000 acrefeet), was 2,320 acre-feet, and on Sept. 30, 1940, It was. 3,740 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 Thermallto 

Irrigation Districts in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

84

85

26

27

28

29

30

31

Oct. or. Dec. Jan.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.4

18

32

29

Feb.

27

27

125

154

164

142

113

80

77

47

41

33

49

209

124

72

113

105

75

59

49

43

37

35

59

425

1,260

788

458

-

-

Month

Calendar year 1939 ......................

Pet

Mati

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

to....... ................................

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

Water year 1939-4 0......................

Mar.

175

141

116

100

100

98

33

0

0

16

37

41

41

38

37

45

44

35

32

31

31

3C

16

8.5

9

214

273

198

736

1,350

653

Apr.

342

242

216

66

0

1.3

4.1

6.5

11

13

19

0

2.5

0

14

8

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Secondfoot-days

0

0

431.4

79.4

4,990 

4,878.5

949.4

0

0

0

c

0

10,697.3

"»7

MmHumm

0

0

0

122

32

1,260 

1,350

342

0

0

0

0

c

1,350

June July

Minimum

0

0

0

0

0

27 

0

0

0

0

0

0

0

0

Aug.

Mean

0

0

0

1.18

2.56

172 

151

31.6

0

C

0

0

0

29.2

Sept.

Run-off In 

acre-feet

0

0

0

855

157

9,900 

9,280

1,680

0

C

c

f

c

21,220
FEATHER RIV2R BASIN 285

Spring Valley ditch near Yankee Hill, Calif.

Location.- Water-stage recorder, lat. 39°46', long. 121°32 f , in NEi sec. 16, T. 22 N., 

 R. 4 E., Just downstream from diversion dam and 4 miles north of Yankee Hill post 

office. Altitude of gage, about 1,840 feet (from topographic map).

Records available.- October 1927 to September 1940. 

Average discharge.- 13 years, 10.5 second-feet.

Extremes.- Maximum dally discharge during year, 35 second-feet Apr. 9; no flow Nov. 27- 

3o, Dec. 5 to Jan. 12, and Apr. 11.

1927-40: Maximum dally discharge, 49 second-feet Oct. 25-27, 1928; no flow at 

times In each year except 1936, 1938, and 1939.

Remarks.- Records good. Ditch diverts from left bank of Concow Creek 300 feet downstream from Lake Wllenor; water used for power development In Lime, Saddle, and Coal 

Canyon plants of Pacific Gas & Electric Co. and for Irrigation In Table Mountain 

and Thermallto Irrigation districts.

Cooperation.- Water-stage recorder graph furnished by Table Mountain and Thermallto 

Irrigation Districts In connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

SO

31

Oct.

22

22

22

22

26

27

27

28

28

27

27

27

27

27

27

27

26

24

22

22

22

22

22

22

2S

22

22

22

22

22

22

HOT.

21

21

21

21

21

21

21

21

21

21

21

21

21

21

20

20

20

21

20

20

20

20

19

10

2.0

.1

0

0

0

0

"

Dee.

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

Jan.

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2'.2

.2

.6

.2

.2

.2

.2

.2

Feb.

0.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.2

.2

4.9

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

1.2

.6

.2

_

-

Month

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

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

toy.......................................

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

Water year!939-4C) ......................

Mar.

0.1.1.1.1.1

.1

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.9

1.4

.2

Apr.

0.2

.1

.1

.1

.3

.2

.2

19

36

16

0

.3

1.1

1.2

2.2

2.0

1.2

1.3

1.7

1.3

1.2

3.2

23

27

21

20

21

22

26

22

-

Secondfoot-days

749

486.1

.4

4,289.6

4.0

10.6

6.8

267.9

314.4

122.6

562.6

892

791

4,197.3

May

20

20

21

29

27

23

14

6

2.1

2.2

1.4

1.8

3.9

6

8.5

10

11

10

9

9.5

7.5

6.5

6.5

7.5

7.5

6.5

6

5.5

5.5

8

13

Maximum

28

21

.1

36

.6

4.9

1.4

36

29

13

27

34

29

35

June

13

10

9.5

10

9.5

9

9

7

1.9

.7

.7

.7

.8

.9

1.2

3.8

7

5.5

4.4

2.3

1.3

1.4

1.6

1.6

1.7

1.7

1.6

1.6

1.6

1.6

-

July

1.5

1.4

1.3

1.3

8

12

11

15

20

21

20

20

20

20

20

19

18

18

19

19

19

22

24

26

27

26

26

26

26

23

22

mTHmiim

22

0

0

0

0

.1

.1

0

1.4

.7

1.3

22

23

0

Aug.

22

22

22

22

25

28

28

30

34

33

32

33

34

34

33

31

31

31

32

30

28

28

29

29

29

27

27

27

27

27

27

Mean

24.2

16.2

.01

11.8

.13

.37

.22

8.93

10.1

4.09

1 J. *7 /«Oft 

28.8

26.4

11.5

Sept.

27

28

29

29

27

25

23

23

23

25

27

27

27

27

27

27

26

25

24

25

26

26

28

28

27

27

27

27

27

27

~

Run-off In 

acre-feet

1,490

964

.8

8,510

7.9

2113'

531

624

243

1,100

1,770

1,570

8,330

9-232 February 1996

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
286 FEATHER RIVER BASIN

Middle Fork of Feather River near Clio, Calif.

Location.- Water-stage recorder, lat. 39°45', long. 120°36', in Ei sec. 23, T. 22 N., 

R. 12 E., 0.3 mile upstream from Frazier Creek and 1.5 miles northwest of Clio. Altiof gage, about 4,350 feet (from topographic map).

Drainage area.- 699 square miles.

Records available.- October 1925 to September 1940.

Average discharge.- 15 years, 232 second-feet.

Extremes.- Maximum discharge during year, 8,070 second-feet Feb. 28 (gage height, 12.03 

feet); minimum, 12 second-feet Aug. 17.

1925-40: 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. Many small diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

3 

4 

5

6 

7 

8 

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

20

81 

88 

23 

84 

85

86 

87 

88 

89 

90 

31

Oct.

16 

22 

18 

16 

16

22 

17 

16 

16 

15

15 

15 

15 

15 

15

15 

15 

16 

16 

16

17 

17 

17 

22 

24

21 

20 

20 

20 

20 

20

HOT.

20 

20 

20 

20 

20

20 

20 

21 

21 

21

21 

21 

22 

22 

22

22 

22 

22 

27 

33

33

29 

29 

29 

33

35 

32 

31 

31 

31

Dec.

30 

31 

32 

32 

33

35 

34 

36 

52 

65

76 

58 ^45 

41 

41

40 

40 

37 

35 

36

33 

30 

30 

30 

27

27 

28 

28 

30 

32 

44

Jan.

133 

396 

278 

387 

330

330 

325 

494 

740 

585

1,170 

932 

591 

537 

448

301 

199 

157 

130 

124

116 

116 

126 

138 

2O6

623 

812 

1,530 

1,080 

729 

588

Feb.

564 

544 

681 

950 

1,18O

1,500 

1,240 

1,030 

809 

630

544 

442 

385 

385 

346

361 

391 

388 

370 

332

298 

279 

326 

388 

753

1,66O 

4,640 

7,050 

7,180

.Month

Oot 

HOT 

Dec

C

Jan 

Pep 

Mar

Apr

J\DQ

Jul 

Aug 

Sep

W

aleadar year 1939 ......................

uary

ate* year 1939-4(

Bsak discharge. -

1,690 sec. -ft.) Fob 

p.m.) 7,070 sec. -ft

)......................

Mar.

4,870 

2,980 

1,880 

1,340 

1,08O

897 

78O 

758 

762 

712

634 

558 

5O6 

470 

401

502 

562 

566 

538 

546

562 

518 

654 

73O 

982

2,020 

3,570 

3,810 

4,890 

6,640 

6,720

Apr.

5, 

3, 

2,

1, 

1,

1, 

1, 

1, 

1,

Seoondfoot-days

545 

750 

1,168

24,529.5

14,651 

35,646 

52,438 

33,600 

8,769 

2,012 

740 

424 

523

151,166

260 

260 

240 

790 

470

260 

130 

04O 

000 

951

892 

838 

825 

834 

884

343 

834 

807 

762 

712

662 

638 

622 

686 

558

578 

590 

542 

562 

530

May

490 

474 

458 

478 

482

379 

285 

309 

386 

386

390 

365 

333 

304 

285

268 

251 

237 

222 

215

209 

198 

192 

178 

168

155 

144 

134 

130 

125 

139

Ito-r^mm

24 

35. 

76

521

1,530 

7,180 

6,720 

5,260 

490 

137 

35 

16 

24

7,180

June

137 

127 

117 

117 

127

115 

106 

100 

99 

92

86 

80 

73 

62 

56

52 

48 

44 

40 

39

35 

33 

31 

30 

31

29 

27 

25 

25 

29

July

26 

24 

24 

24 

24

24 

24 

24 

35 

34

27 

25 

26 

26 

26

26 

26 

26 

26 

24

23 

22 

22 

21 

20

19 

19 

19 

18 

18 

18

Aug.

16 

14 

14 

13 

13

13 

14 

13 

13 

13

14 

14 

13 

13 

14

14 

13 

13 

13 

14

13 

13 

13 

13 

14

15 

15 

14 

15 

14 

14

M^ ip 4 mum Mo^yi

15 17.6 

20 25.0 

27 37.7

6.5 67.2

116 473 

279 1,229 

401 1,692 

530 1,117 

125 283 

25 67.1 

18 23.9 

13 13.7 

14 17.4

13 413

Sept.

14 

14 

15 

16 

17

17 

17 

16 

16 

16

16 

16 

17 

17 

17

18 

18 

19 

24 

19

18 

18 

18 

18 

18

18 

19 

19 

19 

19

Run-off In 

acre-feet

1,080 

1,490 

2,320

48,650

29,060 

70,700 

104,000 

66.460 

17,390 

3,990 

1,470 

841 

1,040

299,800

Jan. 11 (6 p.m.) 1,430 seo.-ft.; Jan. 28 (1 p.m.) 1,690 see. -ft.} Feb. ft (12 m.) 

. 28 (11 a.m.) 8,070 seo.-ft.; Mar. 27 (2 a.m.) 4,700 seo.-ft.; liar. 30 (3i30

0-892 February 1936

Ittti r& ^

UNITED STATES DEPARTMEHT OF THE IUTERIOR 

Geological Surrey
FEATHER RIVER BASIN 287

Middle Fork of Feather River at Bldwell Bar, Calif.

Location.- Water-stage recorder, lat. 39°33', long. 121°26', in NWi sec. 32, T. 20 N., 

R. 5 E., at highway bridge at Bidwell Bar, 2 miles upstream from junction with North 

Fork and 7 miles 'northeast of Oroville. Altitude of gage, about 290 feet.

Drainage area.- 1,353 square miles.

Records available.- October 1911 to September 1940.

Average discharge.- 29 years, 1,731 second-feet.

Extremes.- Maximum discharge during year, 60,200 second-feet Feb. 27 (gage height, 20.15 

feet); minimum, 142 second-feet Oct. 1.

1911-40: 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 Al/d studies; minimum, 88 second-feet Jan. 8, 1937.

Remarks.- Records excellent except those for period of no gage-height record, which are 

fair. Reservoirs and diversions above station are comparatively small.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

g

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

 26 

27 

28 

29 

30 

31

Oct.

150 

245 

224 

196 

178

289 

360 

251 

208 

190

1S2 

176 

172 

170 

170

168 

164 

162 

164 

164

162 

162 

160 

234 

315

245 

214 

206 

204 

198 

202

Bov.

198 

196 

198 

198 

190

ISO 

180 

178 

17S 

178

178 

178 

178 

17S 

176

176 

176 

17S 

ISO 

ISO

182 

192 

192 

190 

200

260 

238 

222 

210 

208

Dec.

206 

204 

202 

202 

202

222

224 

220 

339 

871

1,700 

770 

509 

406 

351

324 

315 

324 

303 

303

300 

275 

268 

265 

258

247 

245 

242 

278 

342 

469

Jan.

2,520 

8,470 

3,680 

4,840 

2,850

2.020 

1,910 

7,660 

8,990 

6,030

7,000 

6,900 

4,370 

3,190 

2,630

2,210 

1,870 

1,640 

1,470 

1,340

1,240 

1,160 

1,120 

1,140 

2,170

10,000 

6,880 

5,250 

4,610 

3,680 

3,230

Feb.

3,050 

2,890 

5,280 

7,420 

8,120

8,270 

7,460 

5,680 

4,640 

3,910

3,480 

3,020 

2,990 

3,540 

2,920

2,560 

2,880 

2,760 

2,460 

2,270

2,130 

2,020 

1,970 

2,240 

3,630

10,800 

43,900 

49,400 

29,800

Honth

Dot 

Hot 

Dec

C

Jut 

Pet 

M*X

&* 

Maj

Jur 

Jul 

Auj 

2ej

11

ember. .................................

alendar year 1939. .....................

uary

atar year 1939-4

Peak discharge. -

(3 p.m.) 10,300 sec

Mar.

18,900 

13,500 

9,700 

7,540 

6,220

5,360 

4,7SO 

4,540 

4,380 

4,120

3,820 

3,490 

3,230 

3,040 

2,880

2,990 

3,160 

2,980 

2,890 

2,870

2,890 

2,930 

3,060 

3,400 

4,340

12,300 

18, 400 

12,600 

25,300 

52, 800 

33, 800

Apr.

21,000 

14,900 

11,500 

9,440 

7,830

6,760 

6,320 

6,060 

5,680 

5,300

5,050 

4,S80 

4,870 

4,900 

4,930

4,480 

4,180 

4,080 

4,040 

4,050

3,960 

3,880 

3,820 

3,640 

3,460

3,310 

3,170 

2,980 

3,030 

2,890

Seoondfoot-days

6,285 

5,746 

11,386

233,925

122, 070 

231,490 

282, 210 

174,390 

72, 150 

26,518 

11,019 

6,679 

6,500

956,443

Hay

2,870 

3,040 

3,420 

3,500 

3,200

2,920 

2,640 

2,520 

2,620 

2,810

2,920 

2,880 

2,730 

2,570 

2,510

2,310 

2,240 

2,080 

2,000 

1,920

1,910 

1,870 

1,820 

1,800 

1,710

1,630 

1,580 

1,540 

1,480 

1,440 

1,670

Maximum

360 

260 

1,700

3,030

10,000 

49,400 

52, 800 

21,000 

3,500 

1,650 

497 

258 

240

52,800

June

1,650 

1,550 

1,440 

1,350 

1,280

1,210 

1,140 

1,090 

1,030 

981

945 

921 

893 

855 

825

800 

775 

745 

720 

700

670 

633 

606 

584 

561

548 

525 

505 

489 

497

July

497 

473 

453 

434 

424

410 

400 

392 

382

378

382 

372 

360 

357 

35V

351 

348 

342 

342 

339

333 

324 

312 

303 

294

288 

282 

278 

275 

272 

265

Aug.

258 

256 

249 

242 

238

236 

230 

230 

230 

230

230 

220 

220 

220 

220

210

210 

210 

200 

200

200 

200 

200 

200 

200

190 

190 

190 

190 

190 

190

Minimum Mean

150 203 

176 192 

202 367

107 641

1,120 3,938 

1,970 7,982 

2,870 9,104 

2, 890 5, 813 

1,440 2,327 

489 884 

265 355 

215 

217

150 2,613

Sept.

190 

200 

210 

230 

240

230 

220 

220 

220 

220

220 

230 

240 

230 

220

220 

230 

240 

240 

230

230 

220 

220 

210 

200

200 

190 

190 

180 

180

Run-off in 

acre-feet

12,470 

11,400 

22,580

463,900

242,100 

459,200 

559,800 

345,900 

143,100 

52,600 

21,860 

13,250 

12,890

1,897,000

Jan. 9 (5:30 a.m.) 10,900 sec. -ft.; Jan. 26 (12 m.) 14,200 sec. -ft.; Feb. 6 

.-ft.; Feb. 27 (11 p.m.) 60,200 sec. -ft.; Mar. 27 (2 a.m.) 23,900 see. -ft.;

Mar. 30 (9 a.m.) 57,600 sec.-ft.

Hpte.- Ho gage-height record Aug. 7 to Sept. 30; discharge computed on basis of combined flow of 

South Fork of Feather River and Palermo canal at Enterprise, weather records, and records of low 

flow in former years.
288 FEATHER RIVER BASIN

South Fork of Feather River at Enterprise, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 121°21', in SWi sec. 6, T. 19 N., 

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.

Drainage area.- 134 square miles.

Records available.- September 1930 to September 1940. October 1911 to September 1930, 

at site naif a mile downstream.

Average discharge.- 29 years, 291 second-feet.

Extremes.- Maximum discharge during year, 13,800 second-feet Feb. 27 (gage height, 18.3 

feet;; minimum, 0.5 second-foot Oct. 1.

1911-40: Maximum discharge, 17,300 second-feet Dec. 10, 1937 (gage height, 20.4 

feet), from rating curve extended above 4,000 second-feet pn basis of velocitj»-area 

and AVd studies; minimum, 0.2 second-foot Aug. 11, 1917.

Remarks.- Records good except those for period of no gage-height record, which are 

fair. Flow regulated by storage and diversions above station for Irrigation. See 

record for Palermo canal at Enterprise.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

SO

81

22

83

84

25

en

378829

no

31

Oct.

0.6

5.5

7.5

6

4.3

IS

23

14

12

11

10

10

9.5

9.5

9

6.5

5

5

5

5

5

5

5

11

15

11

9

8.5

8

12

20

lOT.

20

20

20

19

11

8

S

7.5

7.5

8

8

8

8

8

8

8

9

12

12

18

12

12

13

\2

17

24

19

16

15

15

-

Dec.

15

15

15

15

15

20

80

20

30

150

290

180

60

50

40

35

35

35

30

30

30

30

85

25

25

25

25

20

25

35

55

Jan.

270

2,000

750

1,000

550

400

350

1,800

2,150

1,300

1,600

1,500

900

632

517

432

372

327

291

263

237

219

208

210

493

8,610

1,500

946

725

616

553

Feb.

532

494

1,280

1,680

1,7SO

1,700

1,360

975

774

673

603

517

547

707

553

463

550

514

444

395

367

346

336

377

6S6

2,780

11,200

9,750

4,680

_

-

Month

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

Calendar year 1939......................

torch.....................................

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

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

Water year 1939-40. .....................

Ma*.

2,540

1,940

1,570

1,340

1,110

959

850

785

739

690

652

598

560

523

501

526

540

492

476

470

459

462

468

484

628

2,600

2,960

1,940

4,990

11, 100

6,140

Apr.

3,110

2,180

1,730

1,520

1,850

1,050

1,000

959

890

792

739

703

680

664

649

592

543

518

501

492

476

464

451

427

414

417

386

359

378

347

Seoondfoot-days

1,360

35,439.9

295.5

79.9

158,680.9

Nay

332

358

39!

42\

386

342

31]

297

299

304

304

284

258

240

236

215

1S£

146

140

135

134 12-;

127

US

122

123

119

126

114

134

182

Ha-rfimmi

290

629

146

23

4.0

11,200

June

146

US

103

97

92

83

78

72

65

63

59

57

54

52

51

47

45

42

39

38

37

35

34

33

32

29

26

25

24

24

-

July

23

20

17

16

16

14

16

18

11

11

10

10

9.5

8.5

9

8.5

8.5

8.5

S

7.5

7

6.5

6

5

4.8

4.5

4.3

4.5

3.9

2.7

2.3

lHy»<imim

15

.5

2.3

1.8

.S

Aug.

2.3

2.5

2.6

2.8

2.9

2.1

2.3

2.4

2.3

2.2

2.2

2.2

2.2

2.0

1.9

1.9

1.9

1.8

1.8

l.S

1.8

1.8

1.9

1.9

l.S

l.S

1.8

i.e

1.8

1.8

1.8

Mean

43.9

97.1

9.53

2.66

434

Sept.

l.S

1.8

1.8

2.5

2.9

2.1

2.0

1.9

1.9

1.9

1.9

1.9

3.2

2.3

2.1

2.3

2.2

2.6

4.0

3.4

3.8

3.5

3.3

3.2

3.0

3.0

3.3

3.5

3.5

3.3

-

Run-off in 

acre-feet

8,700

70, 300

586

158

314,700

Peak discharge.- Jan. 26 (12 m.) 3,850 sec.-ft.; Feb. 27 (9 p.m.) 13,800 sec.-ft.; Mar. 26 (9 

p.m.) 5,840 sec.-ft.; Mar. 30 (8:30 a.m.) 12,900 sec.-ft.

Hpte.- No gage-height record Nov. 29 to Jan. 13; discharge computed on basis of records for Middle 

Pork of Feather River at Bldwell Sar and Palermo canal at Enterprise.
FEATHER RIVER BASIN 289

Lost Creek near Clipper Mills, Calif.

Location.- Water-stage recorder, lat. 39°34', long. 121°09', In sec. 24, T. 20 N., R. 

7 E., 1,000 feet downstream from Lost Creek Dam and 2 miles north of town of 

Clipper Mills. Altitude of gage, about 3,050 feet.

Drainage area.- 30.1 square miles.

Records available.- October 1927 to September 1940.

Average discharge.- 13 years, 58.0 second-feet.

Extremes.- Maximum discharge during year, 2,800 second-feet Feb. 27 (gage height, 6.30 

feet); no flow July 30 and parts of July 29 and 31.

1927-40: Maximum discharge, 3,380 second-feet Dec. 10, 1937 (gage height, 6.80 

feet), computed from peak flow over Lost Creek Dam; no flow July 30 and parts ofJuly 29 and 31, 1940.

Remarks.- Records good except those for period of Incomplete gage-height record, which 

are fair. Storage In Lost Creek Reservoir above station was 1,840 acre-feet on 

Sept. 30, 1940. Forbestown ditch diverts water a quarter of a mile above station 

(see following page).

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

18 

13 

14

15

16 

17 

18 

19 

20

21 

22 

83 

84 

85

26 

27 

88 

29 

30 

31

Oct.

0.2 

.3 

.2 

.2 

.2

.3 

.2 

.2 

.2 

.2

.2 

.2 

.£ 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.4 

.2

.2 

.2

.5 

.9 

.9 

.9

MOT.

0.9 

.9 

.4 

.5 

.4

.4 

.4 

.3 

.3 

.3

.3 

.3

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.5

.4 

.4 

.4 

.4 

.4

Dec.

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.9

.5 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.5 

.6

Jan.

1.7 

2.2 

.8 

1.1 

.6

.5 

.9 

2SO 

636 

394

483 

390 

236 

170 

139

116 

103 

93 

86 

79

74 

69 

67 

73 

189

718 

364 

239 

1S7 

159 

146

Feb.

136 

136 

360 

507 

512

447 

371 

279 

223 

202

1S2 

157 

157 

162 

132

121 

144 

127 

116 

110

109 

105 

110 

125 

266

877 

2,480 

2,180 

1,100

Month

Oct 

Hov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

uary

y. .....................................

ater year 1939-4 0......................

Mar.

600 

500 

460 

400 

360

330 

310 

2SO 

260 

240

220 

210 

200 

190 

ISO

ISO 

170 

140 

130 

130

130 

130 

130 

140 

170

400 

600 

450 

1,000 

2,400 

1,300

Apr.

800 

550 

470 

420 

370

320 

300 

280 

250 

230

210 

200 

190 

170 

160

160 

150 

140 

140 

130

130 

120 

120 

110 

110

110 

110 

110 

110 

100

Secondfoot-days

9.0 

12.7 

13.2

7,253.0

5,497.8 

11,933 

12,330 

6,770 

1,769.5 

299.7 

43.8 

19.9 

19.8

38,718.4

May

100 

100 

100 

110 

110

100 

100 

90 

80 

83

80 

77 

76 

74 

65

67 

26 

6

S.5 

10

12 

13 

15 

13 

29

34 

33 

31 

31 

42 

54

MasiMum

0.9 

.9 

.9

202

718 

2,430 

2,400 

800 

110 

41 

2.3 

.8 

.8

2,480

June

41 

34 

28 

24 

20

15 

13 

12 

12 

12

10 

9 

8 

8.5 

6

4.9 

4.6 

4.2 

3.9 

3.6

3.3 

3.0 

2.7 

2.6 

2.5

2.4 

2.4 

2.4 

2.4 

2.3

July

2.3 

2.3 

2.2 

2.3 

2.2

2.2 

2.1 

2.1 

2.0 

2.0

1.9 

1.8 

1.6 

1.6 

1.5

1.5 

1.4 

1.4 

1.4 

~ 1.2

1.1 

1.0 

1.0 

.9 

.8

.7 

.6 

.4 

.1 

0 

.2

Aug.

0

Minimum Mean

0.2 0.29 

.3 .42 

.3 .43

.1 19.9

.5 177 

105 411 

130 398 

100 226 

6 57.1 

2.3 9.99 

0 1.41 

.5 .64 

.6 .66

0 106

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.7 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.6

.6 

.6 

.6 

.6 

.6 

.6

Sept.

0.6 

.6 

.7 

.8 

.8

.8 

.8 

.8 

.7 

.7

.7 

.7

.6 

.6 

.6

.7

.7 

.7 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

r^eeV

18 

25 

26

14,400

10,900 

23,670 

24,460 

13,430 

3,510 

594 

87 

39 

39

76,800

Peak discharge.- Jan. 8 (6 p.m.) 845 sec. -ft.: Jan. 26 (9 a.m.) 1.020 sec. -ft.; Feb. 27 (10'p.m. )

K.ttuo sec. -ft. 

Mote.- Oage-helglit record Incomplete Feb. 29 to May 7; discharge computed on basis of weekly stafj 

gage readings Feb. 29 to Mar. 25, daily readings Mar. 26 to May 7, and comparison with recoT-ds fop 

South Fork of Feather River at Enterprise.

9-832 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
290 FEATHER RIVER BASIN

Forbestown ditch near Clipper Mills, Calif.

Location.- Staff gage and Parshall flume, lat. 39°34 r , long. 121°09', In SWi sec. 24, T. 

20 N., R. 7 E., at outlet of diversion tunnel, 1,100 feet downstream from Lost Creek 

Dam and 2 miles north of Clipper Mills.

Records available.- October 1927 to September 1940. 

Average discharge.- 13 years, 20.7 second-feet.

Extremes.- Maximum dally discharge during year, 42 second-feet June 5-9, June 12 to Aug. 

2£; no flow at times.

1927-40: Maximum dally discharge, 43 second-feet Aug. 9 to Sept. 9, 1937; no flow 

at times.

Remarks.- Records fair. Staff gage read once daily. The ditch, which Is on left bank of 

Lost Creek, diverts from Lost Creek Reservoir. Water Is used for irrigation in 

Orovllle-Wyandotte Irrigation district, In Butte County.

Discharge, in second-feet, water Tear October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

89 

24 

25

26 

27 

28 

29 

30 

31

Oct.

27 

27 

37 

37 

37

37 

37 

37 

37 

27

37 

37 

27 

37

37

31

31 

31 

31 

31

31 

31 

31 

31 

31

31 

6 

0 

6.5 

9 

9

HOT.

3.7 

0 

0 

0

15

31 

31 

31 

31 

31

31 

21 

31 

31 

21

21 

31 

31 

31 

31

31 

31 

31 

31 

31

31 

31 

31 

31 

31

Dec.

16 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

14

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14 

14

Jan.

14 

14 

14 

7 

7

7 

7 

7 

7 

7

7 

7 

5.5 

5.5 

5.5

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6 

6

Peb.

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

0 

0 

0

Month.

Dot 

Hov

Dec

C

Jan 

Peb 

Mar 

Apr 

Hay 

Jim 

Jul 

Aug 

Sep

W

nary* . 

list....... .............................

ater year 1939-4

Mar. Apr.

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

2.1 

14 

3.8 

3.8

3.8 

3.8 

3.8 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

Seoondfoot-days

666.5 

542.7 

436

8,099.3

317.5 

156 

0 

51.9 

354.4 

1,214 

1,302 

1,342 

1,042

7,125.0

May

3.4 

3.4 

3,4 

3.4 

3.4

3.4 

3.4 

2.4 

3.3 

2.2

2.4 

2.3 

2.3 

2.3 

2.3

2.4 

2.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.4 

35 

35

35 

35 

25 

25 

25 

25

Maximum

27 

21 

16

37

14 

6 

0 

14 

25 

43 

42 

43 

35

43

June

25 

35 

35 

35 

42

42 

42 

42 

42 

38

38 

42 

42 

42 

42

42 

42 

42 

42 

42

42 

42 

42 

42 

42

42 

43 

43 

43 

43

July

42 

42 

42 

42 

43

42 

43 

43 

42 

43

43 

42 

42 

42 

42

43 

43 

43 

43 

43

43 

43 

43 

43 

43

43 

43 

43 

43 

43 

43

Minimum

0 

0 

14

0

5.5 

0 

0 

0 

3.2 

25 

42 

35 

31

0

Aug.

43 

42 

43 

43 

42

43 

43 

43 

43 

43

43 

42 

43 

43 

43

42 

42 

42 

42 

42

42 

43 

36 

36 

36

35 

35 

35 

35 

35 

35

Mean

31.6 

18.1 

14.1

33.2

7.02 

5.38 

0 

1.73 

8. SI 

40.5 

42.0 

40.1 

34.7

19.5

Sept.

35 

35 

35 

35 

36

35 

35 

35 

35 

35

35 

35 

35 

35 

35

35 

35 

35 

35 

35

35 

35 

35 

35 

35

35 

35 

35 

31 

31

Rim-off in 

acre-feet

1,320 

1,080 

665

16,080

431 

309 

0 

103 

505 

2,410 

2,580 

2,460 

8,070

14,130

>--232 February 1936.

UNITED STATES DEPARTMENT OP THE INTER I OH 

Geological Surrey
FEATHER RIVER BASIN 

Palermo canal at Enterprise, Calif.

291

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 mile upstream from McCabe Creek, and 1 mile southeast of 

Enterprise.

Records available.- October 1911 to September 1940. 

Average discharge.- 29 years, 18.6 second-feet.

Extremes.- Maximum daily discharge during year, 32 second-feet July 3; no flow Feb. 29 to 

Mar. G, Mar. 31 to Apr. 16.

1911-40: Maximum discharge recorded, 43 second-feet July 25, 1927; no flow for 

periods in each year except 1939.

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

good. 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 Irrlgation District.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

IS 

14 

IS

16 

17 

18 

19 

20

Si 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

19 

23 

21 

18 

16

27 

18 

13 

12

11 

10 

10 

10 

10

12 

14 

13 

13 

14

13 

13 

13 

20 

23

17 

15 

14 

14 

7 

.5

lov.

0.4 

.4 

.3 

.3 

9

17 

13 

13 

13 

a!3

a!3 

a!3 

a!3 

a!3 

a!3

a!3 

al3 

a!3 

a9 

a9

.a8 

S 

7.5 

7 

7

7 

7 

6.5 

6.5 

6.5

Dec.

6 5 

6 5 

6 5 

6 5 

6 5

6.5 

7 

7 

5 

7.5

8 

7.5 

7 

7 

7

7 

7 

7 

7 

7

7 

7 

7 

7 

7

7 

6.5 

6.5 

7 

7 

7

Jan.

a5.5 

a5 

a4.5 

a3.5 

a3.5

a3.5 

3.5 

a4.5 

a5.5 

a5

a5 

a5 

a5 

5 

4.9

4.9 

4.8 

4.8 

4.8 

4.8

4.8 

4.8 

4.8 

4.8 

5

6 

5.5 

5.5 

5.5 

5.5 

5

Feb.

5 

5 

5.5 

6 

6

6 

5.5 

5.5 

5.5 

5.5

5 

5 

5.5 

5.5 

5

a5 

a5 

4 9 

4 9 

4 9

4 9 

4 9 

4 9 

4 9 

5

5.5 

5

.1 

0

Month

Oot 

Hoi 

Dec

0

Jan 

Pet 

Mar 

Apr 

May 

Jan 

Jul 

Aug 

Sep

«

uary

;::::::::::::::::::::::::::::::::::::::

ater year 1939-4 3 ......................

Mar.

0 

0 

0 

0

0

0 

3.7 

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 

8.5

17 

17

15 

10 

8.5 

7.5 

.4 

0

Apr.

0 

0 

0 

0

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0

9'

9 

9

9 

9 

9 

9 

9

9

9 

9 

9 

9

Seoondfoot-days

456.5 

272.4 

215.0

5,319.1

J.50.2 

141.4 

172.1 

121.2 

636.5 

878 

916 

839 

755

5,553.3

May

9 

9 

9 

9 

9

8.5

a 

a

8

8 

13 

24 

28 

28

27 

27 

27 

27 

27

27 

27 

28 

28 

28

28 

30 

30 

29 

30 

30

Majdmun

27 

17 

8

sa

6 

6 

17 

9 

30 

31 

32 

30 

29

32

June

30 

30 

30 

29 

29

29 

28 

28 

29 

31

30 

30 

29 

29 

S9

29 

29 

28

30 

30

29 

29 

29

29 

29 

29 

30 

30

July

29 

30 

32

31 

31

31 

31 

31 

30 

30

30 

30 

30 

30

31

30 

30 

30 

30 

29

29 

29 

28 

28 

28

28 

28 

26 

a28 

a28 

a28

Minimum

0.5 

.3 

6.5

.3

3.5 

0 

0 

0

a

28 

28 

23 

23

0

Aug.

a28 

a28 

a28 

a28 

a28

a28 

30 

30 

29 

29

28

28 

28

28 

28 

28 

28 

27

27 

27 

27 

26 

25

25 

24 

23 

23 

23 

23

Mean

14.7 

9.08 

6.94

14.6

4.85 

4.88 

5.55 

4.04 

20.5 

29.3 

29.5 

27.1 

25.2

15.2

Sept.

23 

23 

23 

27 

23

27 

26 

25 

25 

24

25 

24 

28 

27 

27

27 

27 

28 

29 

26

24 

24 

23 

23 

23

23 

24 

24 

24 

24

Run-off in 

acre-feet

905 

540 

426

10,560

298 

280 

341 

240 

1,260 

1,740 

1,820 

1,660 

1,500

11,010

a Ho gage-height record; discharge computed on basis of observer's notes or interpolated.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
292 FEATHER RIVER BASIN

Middle Fork of Yuba River at Milton, Calif.

Location.- Water-stage recorder, 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, 5,700 feet 

(from topographic map).

Drainage area.- 41 square miles.

Records available.- October 1928 to September 1934, October 1935 to September 1940. 

December 1925 to September 1928, at site 0.2 mile downstream.

Average discharge.- 12 years (1926-30, 1931-34, 1935-40), 103 second-feet (based on com- 

 Dineo now or nlddle Fork at this station and Milton-Bowman tunnel at outlet).

Extremes.- Maximum discharge during year, 2,110 second-feet Mar. 26 (gage height, 2.04 

feet); no flow over dam for long periods.

1925-34, 1935-40: 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 periods of no gage-height record, which are poor. 

Milton-Bowman tunnel diverts water above station to Bowman Lake (see p. 299).

Cooperation.- Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1939-40 (gage height. In feet, and discharge, In second-feet)

0.4 

.5 

.6

143

207

277

354

1.0

1.1

440

535

640

750

1.3 

1.5 

1.8 

2.1

1,000

1,270

1,720

2,210

Discharge, ID second-feet, water year October 1939 to September 1940

 >iy

1

a

a

4

5

6

7

8

9

10

11

12

13

14

15

16 7

 ?

"t

 ^

'"M

~JS

'X(^

"4

" i

"<S

 *»

;"«

;'i

Oct. Hov. Dec. Jan.

a2

alSO

a3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

24

10

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

0

0

0

0

0

0

54

2SS

24

-

-

Month

Calendar year 1939. . ....................

Vj. ......................................

Water year 1939-40. .....................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

15

814

732

126

343

662

182

Apr.

12

0

0

0

0

0

0

0

0

0

0

25

126

169

116

13

16

188

397

431

468

516

506

423

339

270

249

228

214

235

-

Seoondfoot-days

0

0

0

0

2 924

0

18,810

Hay

354

598

640

506

346

323

371

488

640

739

651

468

388

363

2S5

292

300

263

242

256

285

292

285

256

181

132

104

83

39

34

126

KaxUnm

0

0

0

0

0

814

June

54

8

0

0

0

0

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

HinimuD

0

0

0

0

0

0

0

0

0

Aug.

Mean

0

0

0

0

12.5

165

2.07

0

0

51.4

Sept.

Run-off In 

acre-feet

0

0

0

0

720

5,800

9,800

123

0

0

0

37,310

Peak discharge.- Mar. 26 (9 p.m.) 2,110 sec.-ft.; Hay 10 (S p.m.) 1,010 sec.-ft. 

a No gage-height record; discharge computed on, basis of records for nearby streaas and engineer'! 

x tes Of visits to station on Jan. 2, 3.

February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
FEATHER RIVER BASIN 293

Middle Fork of Yuba River near North San Juan, Calif.

Location.- Water-stage recorder, lat. 39°23', long. 121°06', In NEi sec. 32, T. 18 N., 

R. 8 £., 1 mile downstream from Oregon Creek and 1 mile north of North San Juan. 

Datum of gage is 1,400.62 feet above mean sea level (general adjustment of 1929).

Drainage area.- 207 square miles.

Records available.- October 1930 to September 1940. July to October 1900 and October 

1910 to October 1930, at site 0.4 mile upstream.

Average discharge.- 28 years (1911-30, 1931-40) 461 second-feet, Including flow of MlltonBowman tunnel at outlet.

Extremes.- Maximum discharge during year, 13,500 second-feet Mar. 30 (gage height, 10.5 

feet); minimum, 26 second-feet Oct. 1.

1910-40: Maximum discharge, about 26,000 second-feet Mar. 25, 1928 (gage height, 

15.3 feet, former site and datum, from floodmarks),'from rating curve extended above 

1,200 second-feet; minimum, 14 second-feet Aug. 24-28, 1931.

Remarks.- Records good except those for September, which are fair. Milton-Bowman tunnel 

(see p. 295), above station, has diverted water to Bowman Lake since 1928. Some small 

diversions above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

51

Oct.

67

117

71

44

38

132

102

57

46

41

38

35

35

34

34

33

33

33

33

33

33

32

32

58

71

48

43

42

41

40

37

HOT.

36

36

35

35

34

33

34

34

34

34

34

34

34

34

34

34

34

34

34

33

33

34

34

33

43

60

44

40

37

37

-

Dec.

36

36

35

34

34

40

38

36

40

83

227

106

74

60

53

49

48

46

45

46

45

43

44

44

42

41

41

40

49

57

84

Jan.

290

2,100

676

955

520

336

336

1,870

2,190

1,080

2,320

1,720

925

646

490

399

339

300

273

243

220

205

193

193

501

2,860

1,780

1,060

796

65S

574

Feb.

520

471

7S2

1,S70

1,900

1,740

1,560

1,100

855

746

682

5SO

552

841

658

546

612

602

515

462

430

417

495

748

1,430

3,160

8,080

8,630

6,260

-

-

Month

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

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

Iby.. .....................................

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

Water year 1939-40......................

Mar.

3,250

2,230

1,730

1,390

1,160

1,010

889

840

619

750

681

603

546

508

480

524

524

4S6

465

460

455

460

475

497

738

4,070

5,630

2,660

6,310

12,100

7,320

Apr.

3,890

2,510

1,960

1,620

1,350

1,150

1,080

1,040

966

882

840

812

889

990

1,010

764

657

681

1,010

1,100

1,090

1,160

1,200

1,100

958

854

744

681

693

6i,j.

-

Secondfoot-days

1,533

1,079

1,696

49,169

27,050

47,246

60,060

34,332

22,758

3,491

1,582

1,149

1,071

203,047

May

738

1,010

1,270

1,260

926

805

784

854

1,010

1,210

1,270

1,020

942

833

812

657

738

663

615

585

627

609

609

574

497

390

334

298

261

231

326

 a-E^m

132

60

227

1,020

2,860

8,630

12,100

3,890

1,270

321

70

45

44

12,100

June

321

238

198

182

173

162

153

145

135

128

123

114

108

102

97

91

88

84

83

82

77

74

71

70

67

66

65

64

64

66

-

July

63

60

58

57

56

55

54

52

51

51

51

50

50

49

49

49

49

49

49

48

47

46

45

44

44

43

53

70

49

47

44

Minimum

32

33

34

20

193

417

455

651

231

64

43

33

32

32

Aug.

45

44

44

43

42

41

41

40

39

38

38

37

36

36

35

36

36

36

36

35

34

34

34

34

34

34

34

33

33

33

34

Mean

49.5

36.0

54.7

135

873

1,S29

1,937

1,144

734

116

51.0

37.1

35.7

555

Sept.

33

32

33

43

41

3S

36

35

34

33

33

33

36

35

35

36

38

41

44

39

36

34

33

33

33

34

36

35

35

34

-

Run-off in 

acre-feet

3,040

2,140

3,360

97,520

53,650

93,710

119,100

68,100

45,140

6,920

3,140

2,280

2,120

402,700

Peak discharge.- Jan. 9 (5 a.m.) 3,460 sec.-ft.; Jan. 11 (5 p.m.) 3,550 sec.-ft.; Jan. 26 (2 

p.m.) 4,120 sec.-ft.; Feb. 27 (10:30 p.m.) 10,100 sec.-ft.; Mar. 26 (10 p.m.) 11,600 sec.-ft.; 

Mar. 30 (4:30 p.m.) 13,500 sec.-ft.

Bote.- Ho gage-height record Sept. 1-30; discharge computed on basis of range of stage indicated 

by recorder, rainfall records, and records for Horth Pork of Tuba River below Ooodyears Bar.
294 FEATHER RIVER BASIN

Yuba River at Smartville, Calif.

Location.- Water-stage recorder, lat. 39°13', long. 121°18', In SWi sec. 22, T. 16 N., 

K. e £., at Iferrows, 1 mile dovmstream from Deer Creek and 1 mile north of Smartville. 

Datum of gage is 264.17 feet above mean sea level (general adjustment of 1912).

Drainage area.- 1,201 square miles.

Records available.- June 1903 to September 1940.

Average discharge.- 37 years, 2,919 second-feet.

Extremes.- Maximum discharge during year, 64.700 second-feet Mar. 30 (gage height, 20.1 

reetj; minimum, 70 second-feet (regulated) Oct. 11.

1903-40: Maximum discharge, about 120.000 second-feet Mar. 26, 1928 (gage height, 

31.2 feet, present datum, from floodmarks), by slope-area method; maximum gage height, 

29.2 feet, former datum, or 34.4 feet, present datum, Mar. 19, 1907; minimum, that of 

Oct. 11, 1939.

Remarks.- Records good. Several diversions above station for power and irrigation. Flow 

regulated by Lake Spaulding (capacity, 70,500 acre-feet), Bowman Lake (p. 299), 

Fordyce Lake (capacity, 42,000 acre-feet), and many smaller reservoirs. Narrows Dam 

for debris storage is under construction 1 mile above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8

3 

4 

5

6 

7

a

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

SO

81 

88 

83 

84 

85

86 

87 

88 

89 

90 

51

Oet 

lov 

Dec

0

Jan 

Fet 

Max 

API

Sut 

Jul 

Aug 

Bej

1

oot.

192 

300 

313 

300 

266

350 

459 

342 

236 

94

77 

271 

277 

277 

271

243 

232 

232 

227 

216

185 

196 

201 

254 

342

300 

288 

282 

277 

277 

271

lOT.

249 

216 

216 

216 

211

211 

190 

175 

157 

139

190 

222

211 

201 

196

201 

190 

180 

180 

185

190 

196 

206 

201 

211

271 

277 

254 

243 

232

Dec.

232

227 

227 

222 

227

243 

243 

243 

243 

288

548 

463 

324 

277 

271

330 

342 

342 

330

300

324 

306 

312 

324 

312

312

306 

312 

336 

348 

381

Jan.

641 

8,44O 

6,020 

6,060 

3,870

2,320 

2,070 

9,680 

13,300 

7,600

11,300 

10,200 

5,680 

3,930 

3,010

2,500 

2,160 

1,890 

1,710 

1,530

1,380 

1,220 

1,140 

1,110 

2,670

12,600 

10,400 

6,740 

5,350 

4,630 

4,220

Feb.

3,980 

3,780 

4,630 

8,410 

9,400

8,320

e,oso

6,070 

4,970 

4,380

4,200 

3,780 

3,730 

6,410 

4,310

3,680 

4,060 

3,880 

3,340 

2,990

 2,760 

2,640 

2,740 

3,380 

6,300

12,60.0 

48,300 

52,200 

33,100

Month

'ember- ............................. .

ember ..................................

ater year 1939-4

Mar.

17,600 

12,700 

9,850 

8,080 

6,860

5,970 

5,390 

5,130 

5,100 

4,830

4,480 

3,890 

3,530 

3,290 

3,150

3,240 

3,430 

3,150 

3,050 

3,020

3,020 

3,080 

3,210 

3,320 

4,490

13,300 

30,200 

15,200 

25,800 

61,500 

43,300

Apr.

23,500 

13,000 

12,100 

10,100 

8,640

7,660 

7,200 

7,130 

6,780 

6,330

6,380 

6,410 

6,860 

7,460 

7,680

6,620 

5,500 

5,360 

6,250 

6,860

7,250 

7,340 

7,340 

6,850 

5,930

5,070 

4,330 

3,910 

3,730 

3,640

Seoondfoot-days

8,048 

6,217 

9,495

295,364

155,371 

266,370 

322,160

184) 160 

48,253 

12,076 

8,764 

10,613

1,254,747

May

3,780 

5,160 

7,920 

7,780 

6,700

5,680 

4,770 

4,980 

6,270 

7,660

8,100 

8,810 

8,640 

7,130 

6,980

6,270 

6,270 

6,030 

5,710 

4,880

5,550 

6,280 

6,140 

5,490 

5,680

4,940 

4,130 

3,980 

4,060 

4,060 

4,330

,**»»

459 

277 

548

5,040

13,300 

52,200 

61,500 

23,500 

8* 8X0 

4,980 

579 

300 

663

61,500

Peak discharge . - Jan. 2 (8 p.m.) 15,600 sec. -ft.; Jan. 9 (5 a.m. 

p.m.) 17,600 see. -ft.; Feb. 27 (12 p.m.) 59,000 sec. -ft. | Mar. 26

JUDB

4,980 

3,980 

3,190 

2,720 

3,120

2,710 

2,760 

2,550 

2,440 

a2,300

a2,200 

al.800 

al,100 

a900 

a800

650 

774 

893 

893 

830

830 

718 

726 

656 

635

642 

642 

642

600 

572

July

579 

537 

518 

488 

476

470 

458 

458 

446 

394

388 

399 

399 

377 

382

382 

372 

360 

360 

360

355 

345

320 

310 

305

300 

296 

325 

325 

292 

300

Mini. 

77 

139 

222

77

641 

2,640 

3,020 

3,640 

3,780 

572 

292 

274 

177

77

Aug.

300 

300 

296 

296 

292

287 

287 

282 

282 

282

ago

282

278 

278 

278

278 

278 

274 

278 

278

278 

274 

278 

278 

282

292

278 

278 

282 

278 

278

Mean

260 

207 

306

809

5,012 

9,185 

10,390 

7,441 

5,941 

1,608 

390 

283 

354

3,428

Sept.

262 

278 

278 

296 

310

558 

656 

663 

656 

649

600 

305 

296 

296 

292

296 

300 

300 

305 

197

177 

287 

287 

300 

274

287 

296 

300 

296 

296

Run-off in 

ao re-feet

15,960 

12,330 

18,830

585,800

308,200 

528,300 

639,000 

442,800 

365,300 

95,710 

23,950 

17,380 

21,050

2,489,000

16,200 sec. -ft.; Jan. 26 (4 

12 p.m.) 49,500 sec. -ft.; Mar.

30 (10 a.m., 12 m., 4 p.m.) 64,700 sec.-ft.

a Bo gage-height record; discharge computed on basis of unpublished records for North Fork of 

Tuba River at Bullard's Bar.

9-232 February 1936

UHITZD STATES DBPAHTHEHT OF THB UTTHIIOR 

Geological Surrey
FEATHER RIVER BASIN 

Milton-Bowman tunnel at outlet, Calif.

295

Location.- Water-stage recorder, lat. 39°28', long. 120°37', In sec. 3, T. 18 N., R. 12 

K., near upper end of Bowman Lake. Altitude of gage, 5,600 feet (from topographic 

map).

Records available.- May 1928 to September 1930, October 1931 to September 1940. 

Average discharge.- 11 years (1928-30, 1931-40), 65.6 second-feet.

Extremes.- Maximum dally discharge during year, 472 second-feet Mar. 29, 30; minimum 

dally, 2.3 second-feet Oct. 1.

1928-30, 1931-40: Maximum dally discharge, that of Mar. 29, 30, 1940; minimum 

daily, 1.3 second-feet Sept. 28, 29, 1937, and Sept. 24, 1939.

Remarks.- Records good above about 20 second-feet; fair below. 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 Spaulding. During low 

and medium stages practically entire flow of Middle Fork of Yuba River is diverted.

Cooperation.- Water-stage recorder graph and results of nine discharge measurements furnlshed by Nevada Irrigation District.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

2.2

2.4 

2.4 

3.5

7.5 

12 

10 

9 

7.5

6.5 

5.5 

5.5

4.8 

4.8

4.5 

4.5 

4.2 

4.2 

16

17 

7.5 

5.5 

5.5 

5.5

5 

5 

5.5 

6 

5.5 

5.5

Nov.

5 

4.S 

4.5 

4.2 

4.0

4.0 

4.0 

4.1 

4.1 

4.1

4.1 

4.1 

3.8 

3.8 

3.6

3.6 

3.6 

3.6 

3.6 

3.6

3. 

3. 

3. 

3. 

4.

4.8 

4.5 

4.3 

4.1 

4.1

Dec.

4.1 

4.1 

3.8 

3.8 

3.8

4.5 

6 

6.5 

9 

13

25 

19 

14 

11 

8.5

7.5 

7 

6.5 

6 

5.5

5 

4.8 

5 

5 

4.8

5 

5 

5 

7 

11 

14

Jan.

28 

144 

175 

233 

126

72 

59 

57 

67 

63

100 

199 

121 

90 

74

65 

58 

54 

50 

47

44 

42 

40 

39

44

265 

372 

251 

162 

132 

122

Feb.

115 

106 

115 

122 

112

154 

169 

122 

102 

97

92 

83 

79 

70 

74

73 

66 

65 

62 

61

62 

59 

61 

74 

91

137

396 

348

Month

Dot 

Ho\

Dec

C

Jan 

Pet 

Mar 

Apr 

May

JUB

Jul 

Aug 

Bep

«

uary

ater year 1939-4

Mar.

277 

206 

162 

134 

128

122 

121 

132 

142 

130

117 

104 

98 

97 

98

107 

119 

117 

122 

142

159 

210 

243 

281 

380

424 

428 

416 

472 

472 

440

Apr.

400 

324 

340 

285 

247

243 

247 

262 

285 

324

368 

316 

332 

336

324

304 

296 

212 

83 

84

84 

85 

85 

84 

82

80 

79 

78 

78 

79

Seoondfoot-days

193.2 

119.7 

240.2

14,976.5

3,395 

3,429 

6,600 

6,426 

7,340 

4,598 

407.6 

81.5 

107.9

32,938.1

May

80 

86 

88 

87 

84

83 

83 

84 

85 

87

225 

380 

372 

360 

344

328 

312 

308 

304 

300

300 

296 

292 

285 

277

270 

262 

262 

344 

344 

328

Ma*^

17 

5 

25

341

372 

396 

472 

400

3eo

360 

49 

2.9 

5.5

472

June

360 

a335 

312 

312 

285

270 

251 

235 

206 

168

195 

185 

162 

144 

128

121 

113 

101 

91 

83

76 

69 

62 

56

51

48 

43 

40 

37 

39

July

36 

23 

11 

11 

12

12 

12 

11 

11 

13

14 

14 

14 

13 

13

12

11 

11 

11

10 

10 

10 

10 

49

26 

3.4 

3.2 

3.2 

2.9 

2.9

Minimum

2.3 

3.4 

3.8

1.3

28 

59 

97 

78 

80 

37 

2.9 

2.4 

2.4

2.3

Aug.

z'.g

2.7 

S'.7

2.6 

2.6 

2.6 

2.6 

2.6

2. 

2. 

2. 

2. 

2.

2.4

2*. 6

2.7

2.7 

2.7 

2.7 

2.7 

2.6

2.6 

2.4 

2.4 

2.4 

2.4 

2.6

Mean

6.23 

3.99 

7.75

41.0

110 

118 

213 

214

153 

13.1 

2.63 

3.60

90.0

. Sept.

2.4 

2.4 

2.6 

2.7 

2.6

2.6 

2.6 

2.6 

2.6 

2.4

2.4 

2.4 

2.4 

2.6 

2.6

2.6 

2.4 

4.3 

5.5 

5.5

5.5 

5 

4.8 

4.8 

5

4.8 

4.8 

5 

5 

5

Run-off in 

acre-feet

383 

237 

476

29,710

6,730 

6,800 

13,090 

12,750 

14,560 

9,120 

808 

162 

214

65,330

a Ho gage-height record; discharge interpolated.

9-232 February 1956

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
296 FEATHER RIVER BASIN

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. 8 E., 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 1940. October 1910 to September 1933 at 

site 0.7 mile downstream.

Average discharge.- 29 years (1911-40), 71.9 second-feet.

Extremes.- Maximum discharge during year, 2,430 second-feet Mar. 30 (gage height,'8.80 

feet); minimum, 1.6 second-feet Aug. 24, 29 (gage height, 1.50 feet).

1910-40: 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 excellent. Small diversions above station for irrigation and mining.

Discharge, in second-feet, water year October 1939 to September 1940

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

SO

31

Oct.

6.5

16

9

5

4.4

28

18

10

9

7.5

6.5

6.5

7

7

6.5

6.5

6.5

6.5

6.5

6

6

5.5

6

14

15

10

9.5

9

8

V.5

7.5

HOT.

6.5

6.5

6

6

6

5

6.5

7

7.5

7

7

7.5

7

7

7

7

7

7

6.5

6.5

6.5

6.5

6

6

8.5

11

7.5

6.5

6.5

6.5

Dec.

6.5

6.5

5.5

5.5

5.5

6.5

6

5.5

5.5

14

36

17

12

11

9.5

8

8

7.5

8

8

8

7.5

7.5

7.5

7

7

6.5

6.5

S

9

17

Jan.

78

293

103

197

105

66

68

429

525

2S7

542

388

219

152

113

S9

72

62

55

49

44

40

37

38

161

636

367

224

166

132

114

Feb.

97

90

167

572

535

467

385

268

206

174.

160

133

131

206

145

120

137

132

116

103

95

93

113

173

408

883

2,080

1,900

1,480

-

Month

Calendar year 1939 ......................

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

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

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

Jtaly....................... ...............

Water year 1939-40......................

Mar.

786

552

407

318

260

224

196

176

161

148

136

124

113

103

96

102

92

87

82

7S

73

71

68

71

78

683

994

637

1,520

2,330

1,590

Apr.

833

535

404

318

260

224

207

188

170

151

136

124

114

105

102

91

83

78

73

69

64

60

56

54

55

59

54

49

50

46

-

Secondfoot-days

276.9

205.0

283.5

9,250.9

5,851

11,569

12,356

4,812

955

371.5

139.2

77.1

93.2

36,989.4

May

44

42

41

58

49

44

40

38

36

35

31

30

30

31

29

29

30

28

26

24

24

22

21

22

21

21

20

20

19

21

29

Mqy^jmip

2S

11

36

313

636

2,OSO

2,330

833

58

24

7

3

0 «<£

3 9

2,330

June

24

22

20

18

17

17

16

16

15

15

14

14

13

12

11

10

10

10

9.5

9.5.

9

8.5

8.5

8

7.5

7

7.5

7.5

7.5

7.5

-

July

7

6

6

6

6

6

5.5

5.5

4.6

4.4

4.8

4.6

4.8

4.S

4.8

4.S

4.8

4.6

4.4

4.1

3.9

3.9

3.2

3.7

3.2

3.0

3.0

2.9

2.7

3.0

3.2

Minimum

4.4

5

5.5

1.2

37

90

68

46

1 j.yQ

7

2.7

2.1

2.2

2.1

Aug.

3.O

3.2

3.0

2.9

2.7

2.6

2.4

2.6

2.6

2.4

2.6

2.4

2.4

2.4

2.4

2.4

2.6

2.4

2.2

2.2

2.4

2.4

2.2

2.1

2.4

2.4

2.4

2.4

2.4

2.2

2.4

Mean

8.93

6.83

9.15

25.3

189

399

399

160

30. S

12.4

4.49

2.49

3.11

101

Sept.

2.4

2.7

2.6

2.6

2.7

2.4

2.2

2.4

2.6

2.7

2.9

2.9

3.0

3.9

3.7

3.4

3.2

3.7

3.9

3.4

3.4

3.4

3.4

3.4

3.4

3.2

3.4

3.7

3.4

3.2

-

Run-off in 

acre-feet

549

407

562

18,340

11, 610

22,950

24,510

9,540

1,890

737

276

153

185

73,370

9 (5 a.m.) 750 aec.-ft.; Jan. 26 (12:30 p.m.) 792 sec.-ft.; Feb. 4 (7 p.m.) 

p.m.) 2,350 sec.-ft.; Mar. 26 (10 p.m.) 2,060 aec.-ft.; Mar. 30 (9 a.m.)

Peak discharge.- Jan. 

788 aec.-ft.; Feb. 27 (8 

2,430 sec.-ft

9-252 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Qeologlcal Surrey
FEATHER RIVER BASIN 297

North Fork of Yuba River near Sierra City, Calif.

Location.- Water-stage recorder, lat. 39°34', long. 120°40', in NWi sec. 32, T. 20 N., 

R. 12 E., li miles west of Sierra City and 2i miles dov/nstream 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), December 1923 to September 1940.

Average discharge.- 16 years (1924-40), 214 second-feet.

Extremes.- Maximum discharge during year, 3,170 second-feet Mar. 26 (gage height, 5.28 

feet); minimum, 37 second-feet Nov. 20.

1923-40: 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. Small diversions above station for mining.

Discharge, In second-feet, water year October 1939 to September 194o

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

59

6S

53

51

50

70

58

54

52

48

47

45

44

44

43

43

42

42

42

42

42

42

42

47

46

46

51

53

50

48

46

Hov.

44

44

43

43

43

41

41

41

41

41

41

41

41

41

40

40

40

40

39

39

39

39

39

39

46

43

41

42

40

42

Dec.

42

43

42

43

43

49

48

47

65

89

97

64

57

53

52

50

51

51

50

48

46

44

47

47

44

45

44

46

68

68

82

Jan.

228

S87

300

41S

235

169

155

221

294

211

424

400

267

216

183

164

151

141

133

126

120

115

113

111

137

676

516

360

306

276

261

Feb.

249

230

291

318

318

438

370

306

270

249

230

208

201

198

183

169

169

160

149

147

143

141

158

196

276

440

1,200

1,570

899

-

Month

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

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

 .T ..... ...............................

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

Water year 1939-4 0..... .................

Mar.

597

484

410

363

334

309

306

325

328

309

285

261

244

232

232

267

270

258

264

285

309

350

383

462

718

1,650

1,940

1,100

1,490

2,100

1,340

Apr.

967

774

655

575

512

485

498

516

535

560

605

686

796

870

832

691

670

746

820

896

934

1,000

1,000

902

790

691

610

580

600

625

Secondfoot-days

1,510

1,234

1,665

38,431

8,314

9,876

18 205

21 421

3l)l94

11,356

3 , 181

1,774

1,699

111,429

May

779

1,040

1,150

1,010

808

740

762

870

1,040

1,220

1,310

1,340

1,290

1,260

1,150

1,120

1,120

1,090

1,040

1,060

1,070

1,060

1,070

1,050

980

896

832

779

730

708

820

MaxijsunL

70

46

97

500

887

1,570

2, 100

1,000

1,340

155

74

76

2,100

June

730

660

630

610

625

580

550

503

465

449

441

429

402

380

360

350

330

312

295

275

256

234

219

208

196

186

176

169

167

169

July

155

145

138

134

127

123

118

114

109

107

105

103

103

103

103

101

101

99

97

94

92

90

86

82

82

82

80

80

78

76

74

Minimum

42

39

42

36

111

141

232

485

708

167

74

44

41

39

Aug.

747°

70

68

66

66

64

62

62

62

60

60

58

58

58

58

58

56

54

52

50

50

50

52

52

50

50

48

46

44

44

Mean

48.7

41.1

53.7

105

268

341

587

714

1,006

379

103

se'.e

304

Sept.

42

41

46

76

70

62

58

52

50

50

48

48

54

54

54

58

56

76

74

62

58

54

52

52

52

56

60

62

62

60

Run-off in 

acre-feet

3,000

2,450

3,300

76,230

16,490

19 590

36^110

42 490

61^870

22, 520

6,310

3,520

3,370

221,000

Peak dlacharge.- Feb. 27 (11 p.m.) 1,920 

(7r30 p.m.) 1,620 sec.-ft.

ec.-ft.; Mar. 26 (11:30 p.m.) 3,17O .-ft.; May 12

400454 O - 41 - 20

UHITED STATES DEPARTMENT OP THE IHTERIOR 

Geological Survey
298 FEATHER RIVER BASIN

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., 34 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 1940.

Extremes.- Maximum discharge during year, 13,100 second-feet Mar. 26 and 30 (gage 

height, 14.0 feet); minimum, 98 second-feet Nov. 21.

1930-40: 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 except those for period of no gage-height record, which are 

good. Several small diversions above station for Irrigation and mining.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6 

7

a

9

10

11 

12 

13 

14 

IS

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

143 

200 

145 

124 

120

235 

173 

140 

129 

120

116 

113 

111 

10S 

109

108 

107 

107 

107 

106

104 

104 

104 

146 

135

121 

122 

133 

126 

120 

118

Nov.

114 

112 

110 

110 

108

108 

108 

107 

107 

107

107 

106 

106 

106 

105

104 

105 

104 

104 

104

103 

104 

103 

104 

132

126 

114 

111 

109 

110

Dec.

109 

108 

108 

108 

110

120 

119 

116 

213 

291

417 

202 

163 

145 

138

133 

134 

133 

130 

133

123 

118 

122 

122 

116

118 

117 

118 

163 

174 

228

Jan.

a700 

a3,200 

al,700 

a2,400 

a900

587 

598 

1,890 

2,060 

1,240

2,320 

1,850 

1,160 

881 

730

638 

573 

532 

490 

447

419 

400 

389 

378 

702

3,510 

2,100 

1,410 

1,130 

995 

922

Feb.

886 

832 

1,320 

2,020 

1,870

2,130 

1,820 

1,400 

1,170 

1,070

995 

876 

840 

895 

814

746 

818 

774 

706 

667

645 

630 

706 

918 

1,470

3,110 

9,310 

9,740 

5,660

Month

Dot 

Ho? 

Dec

0

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

V ater year 1939-4

Peak discharge. -

4,800 sec. -ft.; Peb 

(2 p.m.) 13,100 sec 

a No gage-height 

Middle Pork of Yuba

0. .....................

Mar.

3,470 

2,580 

2,130 

1,810 

1,590

1,440 

1,350 

1,360 

1,340 

1,250

1,150 

1,050 

990 

945 

920

1,010 

995 

950 

945 

975

1,020 

1,090 

1,170 

1,310 

1,840

5,930 

6,900 

3,900 

7,120 

12,400 

7,670

Apr.

4,

3, 

2, 

2, 

2,

1, 

1, 

1, 

1, 

1,

1, 

1, 

2, 

2, 

2,

1, 

1, 

1, 

1, 

2,

2, 

2, 

2,

1, 

1,

1, 

1,

1, 

1, 

1,

Seoondfoot-days

3,954 

3,258 

4,649

110,301

37,251 

54,838 

78,600 

61,900 

58,220 

21,135 

7,502 

4,913 

4,620

340,840

670 

470 

830 

430 

130

930 

930 

910 

860 

820

850 

950 

120 

220 

160

820 

720 

790 

920 

060

100 

190 

170 

990 

780

600 

430 

340 

360 

350

May

1,580 

2,140 

2,350 

2,130 

1,680

1,530 

1,510 

1,670 

2,000 

2,300

2,510 

2,510 

2,370 

2,300 

2,140

2,050 

2,060 

1,960 

1,870 

1,900

1,940 

1,890 

1,880 

1,830 

1,700

1,550 

1,450 

1,360 

1,290 

1,260 

1,510

Marf^

235 

132 

417

1,370

3,510 

9,740 

12,400 

4,670 

2,510 

1,320 

341 

186 

184

12,400

June

1,320 

1,190 

1,110 

1,080 

1,080

1,020 

980 

925 

854 

826

808 

786 

751 

706 

674

652 

626 

591 

564 

532

498 

465 

439 

419 

401

386 

372 

360 

355 

365

July

341 

324 

313 

302 

294

285 

277 

267 

261 

256

252 

248 

243 

240 

238

233 

233 

231 

229 

224

221 

214 

206 

202 

200

198 

198 

197 

196 

191 

188

Minimum

104 

103 

108

93

378 

630 

920 

1,340 

1,260 

355 

188 

141 

139

103

Aug.

186 

184 

183 

179 

177

174 

171 

170 

166 

164

162 

160 

158 

155 

155

155 

155 

153 

150 

149

148 

147 

148 

149 

150

149 

147 

144 

143 

141 

141

Mean

128 

109 

150

302

1,202 

1,891 

2,535 

2,063 

1,878 

704 

242 

158 

154

931

Sept.

140 

139 

142 

180

171

160

155 

150 

149 

147

146 

144 

158 

153 

153

157 

160 

180 

184 

159

153 

149 

146 

143 

143

146 

159 

152 

152 

150

Run-off in 

acre-feet

7,840 

6,460 

9,220

218,800

73,890 

108, 800 

155,900 

122,800 

115,500 

41,920 

14,880 

9,740 

9,160

676,100

Jan. 2 (6 p.m.) 4,630 sec. -ft.; Jan. 4 (8 a.m.) 4,300 sec. -ft.; Jan. 26 (11 a.m. 

. 27 (10s30 p.m.) 12,400 sec. -ft.; Mar. 26 (8s30 p.m.) 13,100 sec. -ft. J Mar. , 30 

.-ft. 

record; discharge computed on basis of records for station near Sierra City and 

River near North San Juan.

9-238 February 1936

-TJHHQSDJJTASBS

Geological Survey
FEATHER RIVER BASIN 299

Bowman Lake near Graniteville, Calif.

Location.- Staff gage, lat. 39°27', long. 120°39', in SWi sec. 5, T. 18 N., R. 12 E., at

 Bowman Dam on Canyon Creek, 4 miles east of Oraniteville. Datum of gage is 5,000.0 

feet above mean sea level; gage readings have been reduced to elevations above mean 

sea level.

Drainage area.- 30 square miles.

Records available.- December 1926 to September 1940.

Extremes.- Maximum contents during year, 70,100 acre-feet May 23, 24, and 28 (elevation,

 5,565.4 feet); minimum, 8,800 acre-feet Dec. 25-2"? (elevation, 5,466.5 feet).

1926-40: Maximum contents, 70,500 acre-feet June 16, 17, 1937 (elevation, 5,555.9 

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. 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 (see p. 295), and releases it through Bowman-Spaulding 

canal (see p. 301) 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 heiglits furnished by Nevada Irrigation District.

Contents, in acre-feet, water year October 1939 to September 1940

n«y

i

z

3

4

5

6

7

a

9

10

11

12

IS

14

15

16

17

IB

19

SO

21

22

23

24

25

26

27

28

29

30

31

Oct.

15,300

15,300

15,200

15,200

15,200

15,200

15,200

15,200

15,200

15,100

15,100

15,100

15,000

15,000

14,900

14,800

14,600

14,400

14,300

14,200

14,100

14,000

13,900

13,SOO

13,700

13,600

13,400

13,400

13,300

13,200

13,000

HOT.

12,900

12,800

12,700

12,600

12,400

12,300

12,200

12,100

11,900

ll.SOO

11,700

11,600

11,500

-

-

11,500

11,500

11,500

11,500

11,500

11,500

11,400

11,300

11,200

11,000

10,900

-

10,700

10,600

10,400

-

Dec.

10,300

10,200

10,100

10,000

9,800

9,700

9,600

9,500

9,400

-

9,500

9,500

9,500

9,500

9,400

9,300

9,200

9,200

9,100

9,000

_

8,900

8,900

S.900

S.800

8,800

8,800

8,900

S.900

9,000

9,000

Jan.

9,200

10,900

11,500

12,000

12,200

12,500

12,500

12,700

13,100

13,200

13,600

14,700

14,900

15,100

15,200

15,200

15,200

15,200

15,100

15,000

15,000

14,800

14,700

14,600

14,500

15,700

17,200

17,800

18,400

18,800

19,100

Feb.

19,400

19,600

20,000

20,600

21,200

21,800

22,600

23,000

23,200

23,400

23,600

23.SOO

23,900

24,000

24,100

24,100

24,100

24,100

24,100

23,900

23,800

23,600

23,600

23,700

24,000

24,800

26,200

28,700

t30,000

_

-

Har.

31,100

31,900

32,400

32,300

33,200

33,400

33,800

34,100

34 , 500

35,000

35,300

35,400

35,600

35,700

35,900

36,100

36,200

36,400

36,700

37,000

37,300

37,800

38,400

39,000

40,300

42,400

46,800

4S,800

51,000

55,200

57,200

Apr.

53,200

59,000

59,600

60,100

60,400

60,600

60,900

61,300

61,700

62,000

62,600

63,300

63,800

64,800

65,500

65,200

65,000

65,000

64,800

64,700

64 , 700

64,700

64,800

64,700

64,600

64,400

64,300

64,400

64,900

65,300

M«T

65,600

66,000

66,000

65,300

65,400

65,200

65,300

65,500

65,800

66,400

67,200

67,600

67,600

67,300

67,400

67,600

68,000

68,200

69,200

69,600

69,700

69,700

70,100

70,100

69,900

69,900

70,000

70,100

70,000

70,000

70,000

June

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

70,000

69,800

69,600

69,300

69,200

69,200

69,400

69,600

69,700

69,300

July

69,000

68,800

68,400

68,000

67,700

67,300

67,000

66,700

66,300

65,900

65,600

65,200

64,300

64,400

64,000

63,600

63,600

63,200

62,900

62,400

62,000

61,600

61,200

60,800

60,500

60,300

59,800

59,400

59,000

57,800

53,100

Aug.

57,700

57,200

56,800

56,400

56,000

55,600

55,100

54,700

54,200

53,700

53,300

52,300

52,400

52,000

51,600

51,100

50,600

50,100

49,700

49,300

48,900

48,500

48,000

47,600

47,200

46,800

46,400

46,000

45,500

45,100

44,600

Sept.

44,200

43,800

43,400

42,900

42,500

42,100

41,600

41,200

40,700

40,300

40,000

39,600

39,000

38,500

38,000

37,600

37,100

36,800

-

36,100

35,900

35,600

35,400

35,000

34,700

34,400

34,200

33,600

33,300

 ( Interpolated.

Monthly elevation and contents, water year October 1939 to September 1940

Bate

Water year 1939-40. ......

Elevation 

(feet)

""

5,550.4

Contents 

(acre-feet)

Change In contents 

during month 

(acre-feet)

 ( Interpolated.
300 FEATHER RIVER BASIN

Canyon Creek below Bowman Lake, Calif.

Location.- Water-stage recorder and concrete control, lat. 39°26", long. 120°40', in SEi 

sec.~7, T. IS N., R. 13 E., 1 mile downstream from Bowman Lake and 3 miles upstream 

from Texas Creek. Altitude of gage, about 5,100 feet (from topographic map).

Drainage area.- 31.7 square miles.

Records available.- January 1937 to September 1940.

Average discharge.- 13 years, 36.8 second-feet.

Extremes.- Maximum discharge during year, 8C3 second-feet May 24 (gage height, 4.61 feet); 

no flow Aug. 3-31.

1937-40: 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. Flow regulated by Bowman Lake (see p. 399) and diversion into 

Bowrnan-Spaulding canal (see p. 301) 

Cooperation.- Water-stage recorder graph and results of five discharge measurements furnished by Nevada Irrigation District.

Bating table, water year 1939-4O (gage height. In feet, and discharge, In second-feet)

O.O5

.7 

1.7 

2.8 

3.9

1.5

1.6

1.7

5.1

6.5

8.2

1O.5

13.5

2.0

2.1

2.2 

2.4 

2.6

75

116

2.8 

3.O 

3.4 

4.0 

4.6

16O 

205 

306 

536 

875

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6

7

a

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

1.0 

.4 

.3

.2

2.2 

.5 

.2 

.1 

.1

.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.2 

.4

.4

.3 

.3

.4 

.3 

.2 

.2

HOT.

Q.S 

.2 

.1

.1 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.2

.1 

.1 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.2

.3 

.2 

.2 

.2 

.2

Dec.

0.2 

.3 

.3 

.3 

.3

.4 . 4 

.2 

.3 

2.9

2.5 

.7 

.6 

.4 

.4

.4 

.4

.5

.3 

.2 

.4 

.4 

.4

.3 

.2 

.3 

.9 

.7 

1.8

Jan.

9 

20 

3.6 

7 

2.4

1.7 

1.8 

10 

8.5 

5

21 

4.7 

2.7 

2.0 

1.5

1.3 

1.1

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.2

7

21 

4.5 

2.6 

2.1 

2.0 

2.0

Feb.

2.0 

1.9 

8.5 

7 

6

8 

3.2

2.0 

1.7

1.9

1.8 

1.4 

1.3 

1.5 

1.2

1.1 

1.3 

1.3 

1.1 

1.1

1.1 

1.1 

3.9 

3.8 

9

14 

34 

16

4.6

Hon tli

Oct

HOT

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

H

uary

11.....................................

ater year 1939-4

Mar.

2.8 

3.2 

2.6 

2.2 

2.1

2.0 

2.6 

3.1 

2.5 

2.0

1.7 

1.5 

1.4 

1.4 

1.4

3.5 

2.5 

2.2 

2.0 

1.8

1.7 

1.7 

1.6 

3.2 

3.4

34

7 

5.5 

23

30

88

Apr.

233 

257 

255 

247 

245

252 

255 

252 

252 

250

250 

250 

250 

295 

555

662 

574 

536 

477 

438

422 

426 

434 

422 

395

350 

312 

108 

10 

100

Seoondf cot-days

10.9 

5.6 

IB.?,

636.5

151.7 

142.8 

243.6 

9,764 

14,566 

3,448.9 

4.1 

15.2 

39.4

28,410.4

May

170 

419 

645 

629 

508

324 

275 

270 

250 

240

297 

732 

856 

836 

651

518 

624 

468 

171 

480

594 

546 

450 

690 

527

292 

324 

508 

518 

370 

384

Mgxftim-pn

2.2 

.3 

2.9

13

21 

34 

88 

662 

856 

468 

.3 

2.7 

1.9

856

June

464 

422 

468 

377 

324

286 

298 

265 

200 

85

21 

47 

59 

45 

25

13

8 

4.1 

2.8 

8

2.9 

1.7 

.4 

.2 

2.0

5 

3.4 

6.5 

4.3 

.6

July

0.3 

.2 

.3 

.2 

.2

.2 

.2 

.1 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Minimum

0.1.1

.2

0

1.0

1.1

1.4 

10 

170 

.2 

.1 

0 

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 

1.0 

1.7 

1.5 

1.9

2.7 

.9 

1.3 

1.3 

1.4 

1.3

Mean

0.35 

.19 

.59

1.74

4.89 

4.92 

7.86 

325 

470 

115 

.13 

.49 

1.31

77.6

Sept.

1.3 

1.3 

1.6 

1.9 

1.6

1.4 

1.2 

1.2 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.4

1.4 

1.4 

1.4 

1.4 

1.5

1.3 

1.3 

1.1 

1.1 

1.2

1.0 

1.0 

1.4 

1.1 

1.1

Run-off in 

acre-feet

22 

11 

36

1,260

301 

283 

483 

19,370 

28, 890 

6,840 

8.1 

3O 

78

56,350

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
FEATHER RIVER BASIN 301

Bowman-Spaulding canal at intake, Calif.

Location.- Water-stage recorder, lat. 39°27', long. 120°39', in sec. 8, T. 18 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 1940. 

Average discharge.- 13 years, 135 second-feet.

E>:trem.es.- Maximum daily discharge during year, 246 second-feet June 12; no flow April 

6-25, June 27, 28.

1927-40: Maximum dally discharge, 262 second-feet Aug. 2-9, 29, Sept. 10-13, 1928; 

no flow at times in each year.

Remarks.- Records excellent. Canal diverts from left bank of Canyon Creek below Bowman 

Lake. Water is delivered to Fuller Lake, then to Lake Spaulding, and after passing 

through several powerhouses is used for irrigation by Nevada Irrigation District.

Cooperation.- Water-stage recorder graph and results of 14 discharge measurements furnished by Nevada Irrigation District.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

Z

3

4

S

6

7

8

9

10

11

18

13

14

IS

16

17

18

19

SO

21

22

23

24

25

26

27

28

29

30

31

Oct.

141

147

152

124

106

106

105

101

99

100

100

100

100

99

99

99

99

98

85

71

71

56

75

74

73

73

72

72

72

72

72

HOT.

72

72

71

72

72

71

72

73

72

71

72

72

31

7.5

7

7.5

7.5

7.5

7.5

7.5

7.5

49

72

72

73

72

72

72

72

72

-

Dec.

72

72

71

71

71

71

70

70

70

72

71

70

70

70

70

70

70

70

70

70

47

18

49

20

16

16

16

16

16

16

17

Jan.

18

51

156

138

214

226

226

174

134

190

73

113

178

192

202

208

212

217

216

217

219

220

223

222

165

12

86

131

135

148

157

Feb.

158

158

29

84

57

28

77

120

145

150

158

172

185

192

192

198

199

201

208

214

214

214

179

155

85

23

17

10

23

-

-

Month

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

Calendar year 1939.. ....................

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

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

Ma*. ...

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

Water year 1939-40..... .................

Mar.

38

41

93

124

131

131

133

127

111

121

141

161

165

165

165

149

147

158

158

150

134

133

113

91

40

20

13

24

24

20

6

Apr.

1.4

1.5

1.4

8

9

0

0

0

0

0

0-

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.6

.6

.4

.4

.4

-

Seoondfoct-days

2,913

1,578.5

1,658

37,733.7

5,073

3,845

3,227

23.7

1,980.9

4,710.0

7,147

7» 232

6,971

46,359.1

May

0.2

.2

.4

.5

.6

.4

.3

.2

.1

.1

.1

.2

.2

.2

.2

19

25

23

104

75

161

160

137

132

189

189

189

82

101

209

182

Maximum

152

73

72

230

226

214

165

9

209

248

240

236

234

248

June

198

73

62

62

59

59

64

212

230

240

244

248

243

234

236

237

235

201

167

147

141

236

235

235

117

2

0

0

70

223

-

July

228

238

232

234

237

237

237

237

236

235

235

235

238

240

239

188

157

232

231

232

235

234

234

233

235

234

234

234

233

232

231

IHtl^nniM

56

7

16

0

12

10

6

0

.1

0

157

230

230

0

Aug.

234

234

234

234

233

233

232

234

236

235

235

234

234

233

233

232

230

231

234

234

232

233

234

233

232

232

234

234

233

233

233

Mean

94.0

52.6

53.5

103

164

133

104

.79

63.9

157

231

233

232

127

Sept.

232

232

231

230

230

231

231

232

232

231

231

230

232

234

234

234

234

233

232

230

233

234

234

234

233

233

232

234

234

234

-

Run-off in 

acre-feet

5,780

3,130

3,290

74,840

10,060

7,630

6,400

47

3,930

9,340

14,180

14,340

13,830

91,960

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
302 FEATHER RIVER BASIN

Deer Creek near Smartville, Calif.

Location.- Water-stage recorder, lat. 39°13'20", long. 121°16'00", in sec. 23, T. 16 N.,

 R. 6 E., 1 mile upstream from mouth and 2 miles northeast or Smartville. Altitude 

of gage, about 500 feet (from topographic map).

Drainage area.- 83.5 square miles.

Records available.- June 1935 to September 1940.

Extremes.- Maximum discharge during year, 6,210 second-feet Mar. 30 (gage height, 10.44 

reet); minimum, 0.1 second-foot Aug. 4-6, and 15.

1935-40: Maximum discharge, 10,800 second-feet Dec. 11, 1937 (gage height, 13.2 

feet, from floodmarks), from rating curve extended above 3,500 second-feet on basis 

of Ara method and velocity-area studies; minimum, that of Aug. 4-6, and 15, 1940.

Remarks.- Records good except those for period of no gage-height record, which are

 fair".' Storage reservoirs and diversions above station; maximum amount diverted, 

about 40 second-feet. At times, water from South Fork of Yuba River is diverted 

into Deer Creek above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

84

25

26

27

28

29

30

31

Oct.

0.7

1.5

1.9

1.8

1.6

6

6

8

6

1-.2

.6

.6

.7

.7

.5

.5

.4

1.0

2.2

1.0

.7

.4

.4

4.1

4.9

6

2.6

1.6

1.3

1.2

1.5

HOT.

1.3

1.5

1.4

1.2

.8

.5

.4

.4

.3

.2

.4

1.1

.9

.8

.7

.6

.3

.3

.3

.4

1.5

1.6

2.6

3.9

5.5

5.5

9.5

8

9

6.5

Dec.

4.9

4.3

2.8

3.0

5.5

6.5

4.6

6.5

6.5

11

15

20

7

1.8

2.2

2.1

1.5

.5

3.2

4.6

3.5

4.9

6.5

9.5

11

10

9.5

9.5

11

11

16

Jan.

151

1,100

180

390

98

48

187

al,8OO

al,900

aS50

a2,100

a 900

a300

187

113

70

72

62

59

53

50

47

44

47

580

1,190

502

292

230

192

156

Feb.

140

139

222

365

371

446

338

246

196

168

147

142

276

1,440

350

226

519

320

236

181

166

156

187

224

932

1,630

4,810

3,400

2,420

-

Month

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

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

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

Water year 1939-4 1 ......................

Mar.

1,150

777

590

481

415

373

338

298

25S

244

224

222

216

205

196

199

188

176

168

160

145

132

136

125

145

1,470

977

662

2,850

5,140

2,450

Apr.

1,260

752

586

478

400

332

290

258

214

183

144

119

99

90

91

77

64

55

47

45

47

46

42

46

61

49

45

42

58

48

Secondfoot-days

67.6

67.4

215.9

11,032.0

13,950

20,393

21,090

6,068

843 

141.8

11.3

10.3

16.8

62,875.1

May

44

40

40

74

70

43

36

35

38

34

30

27

26

22

20

20

16

14

12

11

11

12

12

13

12

30

20

19

17

18

27

MgyJHnMH

8

9.5

20

1,520

2,100

4,810

5,140

1,260

74 

40

.8

.9

.9

5,140

June

40

20

16

12

11

11

6.5

3.0

2.6

1.8

1.6

2.0

1.1

.9

.9

.9

.9

.8

.8

.7

.6

.7

.7

.7

.7

.8

.9

.7

.7

.8

July

0.8

.6

.6

.5

.5

.4

.4

.4

.5

.5

.6

.4

.3

.3

.3

.3

.4

.3

.2

.2

.2

.3

.2

.2

.2

.2

.2

.4

.3

.3

.3

M^Ti^imim

0.4

.2

.5

.2

44

139

125

42

11 

.6

.2

.1

.3

.1

Aug.

0.3

.3

.2

.1

.1

.1

.2

.2

.2

.3

.2

.2

.2

.2

.1

.2

.2

.2

.2

.2

.4

.3

.5

.6

.5

.5

.6

.5

.7

.9

.9

Mean

2.18

2.25

6.96

30.2

450

703

680

202

27.2 

4.73

.36

.33

.56

172

Sept.

0.9

.6

.5

.6

.6

.4

.3

.3

.4

.5

.5

.5

.6

.4

.3

.3

.5

.8

.8

.5

.5

.6

.6

.6

.5

.6

.8

.8

.8

.7

Run-off in 

acre-feet

134

134

428

21,890

27,670

40,45O

41,830

12,040

1,670 

281

22

20

33

124,700

Peak discharge.- Jan. 2 (1 p.m.) 2,020 aec.-ft.; Feb. 14 (3.-30 a.m.) 3,880 sec.-ft.- Feb. 27 

(8 a.m.) 5,640 aec.-ft.; Bar. 26 (7 p.m.) 4,250 aec.-ft.; Bar. 30 (9 a.m.) 6,210 aec.-ft.

a Ho gage-height record; discharge computed on basia of precipitation recorda and recorda for 

Oregon Creek near North San Juan.
FEATHER RIVER BASIN 

Bear River near Wheatland, Calif.

303

Location.- Water-stage recorder, lat. 39°'00', long. 121 °25', in sec. 3, T. 13 N., R. 5 E., 

100 feet downstream from bridge on U. S. Highway 99 E, 1 mile southeast of Wheatland, 

and 6i miles downstream from Rock Creek. Altitude of gage, about 85 feet (from topographic map).

Drainagei area.- 295 square miles.

Records available.- October 1928 to September 1940.

Average discharge.- 11 years (1929-40), 383 second-feet.

Extremes.- Maximum discharge during year, 16,500 second-feet Mar. 30 (gage height, 14.46 

feet); minimum, 0.5 second-foot Aug. 18.

1928-40: 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 upstream.

Remarks.- Records fair Oct. 1 to May 8, and poor May 9 to Sept. 30. River receives inflow 

from Yuba River Basin above gage; flow regulated by storage reservoirs and many 

diversions.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

S

6

7

a

9

10

11

18

13

14

15

16

17

18

19

80

81

82

83

84

85

86

87

88

89

30

31

Oct.

1.2

2.1

2.S

3.0

2.8

3.1

11

13

12

10

14

10

8

8.5

8.5

8.5

7.5

7.5

8.5

8

7

6

5

7

32

30

27

27

26

22

16

HOT.

21

22

22

24

22

20

16

24

21

16

16

16

10

15

24

24

24

22

22

21

21

24

24

24

24

33

30

24

27

26

-

Dec.

28

28

27

24

22

28

28

32

30

33

78

51

39

36

33

32

35

32

30

33

28

27

28

27

21

20

22

26

33

30

32

Jan.

49

914

580

615

444

362

330

1,410

2,370

1,750

2,410

2,970

1,440

1,000

932

911

890

877

858

838

812

780

766

742

1,210

2,440

1,330

1,030

932

904

884

Pet.

890

870

939

1,000

1,020

1,050

1,060

974

939

925

911

890

911

3,240

2,040

1,500

1,780

1,620

1,300

1,190

1,140

1,070

1,080

1,270

2,090

3,330

13,600

12,000

8,270

-

-

Month

Calendar year 1939. .....................

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

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

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

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

Water year 1939-'10. .....................

Mar.

3,870

2,450

1,900

1,640

1,430

1,310

1,120

956

865

802

781

858

935

963

767

728

708

688

682

669

662

662

643

662

688

1,680

3,680

2,300

4,620

15,600

11,100

Apr.

4,260

2,680

2,080

1,830

1,600

1,420

1,230

1,120

1,210

1,190

1.110

1,060

1,030

984

956

991

1,120

1,080

879

362

58

46

879

779

595

614

488

355

335

350

-

Seoondfoot-days

355.0

659

973

31,695.6

33,780

.68, 899

66,419

32.691

2,568.8

140.7

197.6

135.4

174.7

206,993.2

May

452

394

335

315

305

305

237

108

15

10

9

8

7

6

5

4.5

4.3

4

4

4

4

4

4

4

3

3

3

3

3

3

3

Maximum

32

33

78

2,250

2,970

13,600

15,600

4,260

452

9

12

7.5

8

15,600

June

3

3

3

3

2.8

2.8

3.0

2.4

2.0

5

6

6.5

9

9

9

9

9

3.3

3.8

4.2

3.5

3.5

3.8

3.2

4.2

3.8

4.2

4.6

4.6

6.5

-

July

5.5

6

6

6

4.4

2.6

4.6

3.2

4.8

5

4.5

6

7.5

10

9

12

12

8

8

8

7

6.5

7

6.5

4.6

4.6

4.4

5.5

4.9

6

7.5

Minimum

1.2

10

20

0

49

870

643

46

3

2.0

2.6

2.0

3.3

1.2

Aug.

7

6.5

4.3

7

6.5

7

7.5

5.5

4.2

4.1

6.5

3.9

4

2.8

3.2

2.4

2.1

2.6

2.6

3.2

3.3

4.6

4.6

4.6

3.5

3.4

5

4.5

3.8

3.2

2.0

Mean

11.5

22.0

31.4

86.8

1,090

2,376

2,143

1,090

82.9

4.69

6.37

4.37

5.82

566

Sept.

5.5

3.3

5.5

3.9

4.9

5.5

5.5

4.4

4.7

3.8

4.7

5

6

6.5

6.5

7

6

5.5

6.5

8

7.5

7.5

7.5

7

6.5

6.5

6

6

6

5.5

-

Run-off in 

acre-feet

704

1,310

1,930

62,860

67,000

136,700

131,700

64,840

5,100

279

392

269

347

410,600

Peak discharge.- Feb. 27 (9:30 p. 15,500 sec.-ft.; Mar. 30 (2 p. 16,500 sec.-ft.

9-838 February 1936

TJHITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
304 FEATHER RIVER BASIN 

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, 1-J miles downstream from diversion dam on 

Bear River, and 2 miles northwest of Colfax. Altitude of gage, about 1,950 feet.

Records available.- January 1912 to September 1940. 

Average discharge.- 25 years (1914-40), 222 second-feet.

Extremes.- Maximum dally discharge during year, 469 second-feet July 20; no flow Feb. 

18-23 and Apr. 3-28.

1912-40: 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.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

8

3

4

S

6

7

B

9

10

11

18

IS

14

15

Ifi

17

IB

19

20

81

JW

as

84

85

8fi

87

28

89

30

31

Oct.

165

173

168

122

132

173

121

113

108

105

10S

137

158

155

97

142

176

202

170

215

234

225

210

245

266

260

255

85

43

122

254

HOT.

257

264

273

275

268

270

266

269

261

267

266

161

223

283

289

282

282

288

287

283

290

284

283

276

308

298

295

2S3

297

293

-

Dec.

296

289

277

274

267

270

267

269

228

162

220

235

277

271

266

188

175

274

278

277

277

287

275

224

264

292

298

297

267

241

210

Jan.

233

290

286

354

392

385

370

330

263

320

328

318

362

321

378

410

313

425

433

43E

430

437

452

428

336

330

376

401

402

405

402

Feb.

400

403

398

374

378

369

380

400

480

300

2

1

3

5

2

1

3

0

0

0

0

0

0

53

233

205

109

10

68

-

Month

Calendar year 1939. .....................

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

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

Water year 1939-4 0. .....................

Mar.

151

236

250

305

296

300

360

350

380

220

3

2

2

167

284

290

292

289

290

342

355

361

364

374

354

283

157

328

212

24

12

Apr.

5

4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

166

378

-

Secondfoot-days

8,231

7,992

98,863

4,517

553

11 Q3S

12,739

106,172

May

430

462

464

466

370

227

216

198

187

180

175

167

161

178

186

172

14S

13C

129

377

335

345

342

342

346

337

330

323

309

292

371

Maximm

308

268

450

420

448

469

June

347

345

328

330

340

335

366

334

311

335

376

401

413

443

419

420

427

441

437

430

437

442

441

444

443

445

442

437

438

385

July

441

39S

416

345

361

435 42.'

446

436

435

446

444

450

446

443

445

442

456

463

469

464

458

464

465

463

466

462

467

457

457

457

lUTt^imim

161

16E

40

0

312

288

0

Aug.

457

457

457

457

457

459

463

463

459

446

446

441

444

444

445

448

450

452

444

446

448

445

452

369

368

437

45E

312

452

45E

450

Mean

274

258

271

156

398

425

290

Sept.

445

446

446

407

448

447

431

286

3S1

446

446

443

443

442

351

435

432

433

433

433

438

433

432

432

432

432

43£

373

41£

437

-

Run-off In 

acre-feet

15,850

196,100

8,960

17 ' &50

25, 270

210,600
AMERICAN RIVER BASIN 305 

North Fork of American River near Coifax, Calif.

Location.- Water-stage recorder, lat. 39°03', long. 120°54', in NWi sec. 30, T. 14 N., R. 

10 E., 50 feet downstream from bridge on Colfax-Forest Hill road, 200 feet downstream 

from Shirttail Canyon Creek, and 5 miles southeast of Colfax. Datum of gage is 897.29 

feet above mean sea level (general adjustment of 1929).

Drainage area.- 308 square miles.

Records available.- August 1911 to September 1940.

Average discharge.- 28 years (1911-15, 1914-39), 636 second-feet.

Extremes.- Maximum discharge during year, 17,600 second-feet Mar. 30 (gage height, 14.6 

feet); minimum, 37 second-feet Oct. 1.

1911-40: Maximum discharge, about 37,000 second-feet liar. 25, 1928 (gage height, 

25.2 feet, from floodmarks, present datum), by slope-area method; minimum, 15 secondfeet July 22 to Aug. 7, Aug. 12-15, 1924, Aug. 28, 1931.

Remarks.- Records good. A little storage and a few diversions above station.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

S3.

22

23

24

25

26

27

28

29

30

31

Oct.

46

115

98

69

57

71

132

84

71

63

58

54

52

49

49

48

47

46

46

45

44

43

43

60

74

56

52

50

55

52

49

HOT.

48

47

47

46

45

45

45

46

44

44

43

43

43

43

42

42

42

41

41

41

41

41

41

40

50

73

60

49

46

45

-

Dec.

45

45

45

44

45

52

52

50

49

74

317

151

101

84

74

69

68

66

67

67

66

62

62

62

60

56

56

56

70

128

114

Jan.

206

3.250

1,150

1,570

883

555

592

2,590

3,590

1,730

3,440

3,260

1,580

1,140

900

762

663

595

535

480

444

417

390

377

750

5,820

3,190

1,820

1,410

1,220

1,130

Feb.

1,090

995

1,450

2,210

2,310

2,530

2,210

1,650

1,400

1,240

1,150

1,050

959

1,320

1,270

1,070

1,090

1,150

1,020

935

883

844

1,180

1,750

2,240

3,920

11,400

11,300

8,080

.

-

Month

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

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

30.J.. ............................. .....^.

Water year 1939-40......................

Mar.

5,180

3,900

3,020

2,360

1,960

1,710

1,600

1,580

1,540

1,340

1,220

1,080

1,000

934

910

958

1,010

964

916

970

1,000

1,070

1,160

1,280

1,970

5,760

8,360

4,780

8,290

15,600

10,100

Apr.

5,960

4,310

3,400

2,850

2,360

2,080

2,030

1,970

1,900

1,850

1,880

1,930

2,140

2,240

2,160

1,630

1,460

1,590

1,780

1,850

1,840

2,000

1,980

1,770

1,550

1,360

1,190

1,080

1,090

1,060

-

Secondfoot-days

1,878

1,364

2,357

95,428

46,439

69,696

93,462

62,390

45,684

12,372

3,004

1,508

1,280

341,334

May

1,370

1,970

1,990

1,910

1,420

1,270

1,290

1,480

1,800

2,000

2,160

2,140

1,970

1,780

1,690

1,560

1,540

1,480

1,390

1,360

1,430

1,400

1,360

1,280

1,160

1,000

931

886

832

785

1,030

Maximum

132

73

317

1,590

5,620

11,400

15,600

5,960

2,160

903

167

ep O£

48

15,600

June

903

745

684

674

643

638

607

568

492

476

484

472

444

413

385

354

364

324

305

280

280

252

225

217

214

197

187

185

178

182

-

July

167

154

144

140

132

127

121

114

108

105

103

99

96

95

95

91

88

68

87

84

80

78

74

72

69

67

66

66

65

65

a64

Minimum

43

40

44

28

206

844

910

1,060

785

178

cA D^r

42

40

40

Aug.

a62

a60

a56

257

a55

a54

a52

a51

a51

a 50

a50

50

49

48

48

47

47

47

47

46

45

44

45

45

45

44

43

42

42

42

42

Mean

60.6

45.5

76.0

261

1,498

2,403

3,015

2,076

1,474

412

96.9

48.6

42.7

933

Sept.

41

41

41

48

48

46

45

44

42

41

41

41

42

43

42

43

44

45

45

45

43

42

41

40

40

40

42

42

41

41

~

Run-off in 

acre-feet

3,720

2,710

4,680

189,300

92, 110

138,200

165,400

123,600

90,610

24,540

5,960

2,990

2,540

677,100

Peak discharge.- Jan. 2 (6 p.m.) 6,110 sec.-ft.; Jan. 11 (10 p.m.) 6,060 sec.-ft.; Jan. 26 (2: 

p.m.) 8,220 sec.-ft.; Feb. 27 (11:30 p.m.) 14,000 sec.-ft.; Mar. 26 (11:30 p.m.) 15,600 sec.-ft. 

Mar. 30 (4 p.m.) 17,600 sec.-ft.

a Mo gage-height record; discharge computed on basis of records for Middle Fork of American River 

near Auburn. 

9-282 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeological Surrey
306 AMERICAN RIVER BASIN

North Fork of American River at Rattlesnake Bridge, Calif.

Location.- -Water-stage recorder, lat. 38°49', long. 121°06', in SWi sec. 9, T. 11 N., R. 

8 K., 800 feet downstream .from Rattlesnake Bridge, 3 miles downstream from Pilot Creek, 

and 6 miles south of Auburn. Altitude of gage, about 350 feet (from topographic map).

Drainage area.- 999 square miles.

Records available.- November 1930 to September 1937, December 1938 to September 1940.

Extremes.- Maximum discharge during year, 54,000 second-feet Mar. 30 (gage height, 21.50 

feet); minimum discharge recorded, 86 second-feet Sept. 9, 16.

1930-40: 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 Oct. 14 to Jan. 1 and Apr. 3 to Sept. 30; fair to poor for remainder of year. Storage, diversion, and regulation above station; low flow greatly affected by diversions into North Fork ditch and inflow from Bear and Yuba River Basins 

through South canal of Pacific Gas & Electric Co.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

s

4

S

6

7

8

9

10

11

18

13

14

IS

16

17

18

19

SO

HI

22

as

24,

25

26

27

28

29

30

31

Oct.

130

250

300

320

270

250

470

380

340

280

240

220

220

218

186

200

219

240

254

272

250

298

229

310

394

394

250

196

162

242

328

ROT.

337

366

331

342

342

351

300

342

321

323

320

193

266

348

305

330

377

343

345

310

302

326

314

321

354

358

327

351

333

322

Dec.

301

332

312

300

315

362

360

348

357

330

774

926

688

572

494

428

283

440

454

481

448

478

411

380

316

377

402

422

412

542

654

Jan.

686

7,100

6,660

4,710

3,550

2,170

1,940

6,260

11,000

6,120

8,830

12,300

5,980

4,190

3,170

2,650

2,270

2,160

2,000

1,850

1,720

1,670

1,620

1,580

2,060

14,300

12,300

6,750

5,170

4,430

4,040

Feb.

3,920

3,530

3,950

6,440

7,340

6,820

7,320

5,540

4,650

3,980

3,380

2,960

2,680

4,250

3,760

3,050

3,240

3,320

2,860

2,560

2,380

2,250

3,500

6,270

6,090

9,440

29,800

37,200

25,200

_

-

Month

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

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

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

to......... ..............................

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

Witter year 1939-40......................

Mar.

15,400

10,800

8,250

6,760

5,800

5,290

4,920

5,060

5,060

4,390

3,880

3,430

3,140

2,980

3,040

2,990

3,380

3,290

3,130

3,290

3,400

3,590

3,870

4,040

6,290

12,30C

29,700

14,100

18,100

45,200

36,000

Apr.

19,900

13,500

10,300

8,760

7,520

6,620

6,260

6,280

5,980

5,820

6,000

6,080

6,640

7,180

7,000

5,520

4,780

5,000

5,740

6,020

5,900

6,280

6,600

6,100

5,360

4,640

4,040

3,740

3,620

3,540

-

Seoondfoot-days

8,312

9,800

13,699

331 , 286

151,236

207,680

280,870

200,720

154,260

54,145

14,421

8,063

8,805

1,112,011

May

4,360

6,020

7,100

6,600

5,240

4,340

4,240

4,720

5; 680

6,340

6,800

7,040

6,700

5,900

5,780

5,240

,360

,920

,680

,480

,780

,840

,680

,660

,340

,780

,390

,210

3,130

2,810

3,100

Maximum

470

377

926

5,140

14,300

37,200

45,200

19,900

7,100

3,700

754

342

530

45,200

June

3,700

3,010

2,650

2,620

2,500

2,530

2,500

2,280

2,130

1,960

2,040

2,070

2,040

1,970

1,860

1,740

1,720

1,660

1,550

1,440

1,350

1,240

1,040

1,000

1,050

1,000

916

892

876

811

"

July

754

742

688

580

595

565

530

520

505

540

515

495

460

420

415

420

445

490

500

320

296

378

401

392

383

370

365

296

316

365

360

Minimum

130

193

283

10

686

2,250

2,980

3,540

2,810

811

296

155

153

130

Aug.

316

342

288

262

273

320

316

316

308

252

245

238

256

245

292

256

252

177

245

288

235

232

284

171

155

228

225

235

235

288

288

Mean

268

327

442

908

4,879

7,161

9,060

6,691

4,976

1,805

465

260

294

3,038

Sept.

288

177

242

292

296

259

252

153

203

235

300

245

252

304

238

228

316

393

530

410

378

411

304

329

324

329

276

265

242

334

-

Run-off in 

acre-feet

16,490

19,440

27,170

657,100

300,000

411,900

557,100

398,100

306,000

107,400

28,600

15,990

17,460

2,206,000

Peak discharge.- Jan. 2 (9:30 p.m.) 17,200 sec.-ft.; Jan. 12 (2 a.m.) 17,700 sec.-ft.; Jan. 26 

(6 p.m.) 22,505 sec.-ft.; Feb. 28 (1 a.m.) 43,000 sec.-ft.; Mar. 27 (3 a.m.) 45,000 sec.-ft.} Mar. 

30 (7 p.m.) 54,000 sec.-f,t.

Note.- Ho gage-height record Oct. 1-13) discharge computed on basis of records for station on 

American River at Fair Oaks and stations on other forks of American River.

9-2S2 February 1936 fleological Survey
AMERICAN RIVER BASIN 307

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 bridge). available.- 

 

November 1904 to September 1940 (at several sites near highway 

Average discharge.- 35 years (1905-40), 3,667 second-feet.

Extremes.- Maximum discharge during year, 89,200 second-feet Mar. 30 (gage height, 25.27 

reetj; minimum, 83 second-feet Oct. 1.

1904-40: Maximum discharge, 140,000 second-feet Mar. 19, 1907, Mar. 25, 1928 (gage 

height, 31.4 feet, present datum), from rating curve extended above 75,000 second-feet; 

minimum, 3.6 second-feet (regulated) Aug. 16, 1924.

Remarks.- Records good. Flow regulated by storage, many diversions, and power plants 

above station. Some inflow from Bear and Yuba River Basins.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

SO

21

22

83

84

85

26

87

88

89

50

31

Oct.

172

214

394

628

51S

414

532

876

637

556

488

424

427

402

412

370

372

356

394

398

403

501

359

415

568

664

516

459

378

446

516

HOT.

544

554

531

554

536

559

498

514

516

504

540

510

372

424

465

408

530

446

470

468

494

517

528

501

492

606

736

616

520

516

-

Dec.

572

588

570

510

519

568

565

566

569

562

8S7

1,550

1,130

884

671

700

577

594

682

704

690

707

662

664

566

489

568

642

654

668

1,130

Jan.

1,060

6,820

13,400

6,900

5.720

3,300

2,830

9,390

23,000

11,600

13,600

24,300

10,400

6,470

4,740

3,990

3,310

3,070

2,800

2,600

2,400

2,270

2,210

2,130

2,660

18,900

22,300

10,600

7,400

6,090

5,450

Feb.

5,180

4,710

4,310

6,840

10,700

8,940

11,100

7,840

6,420

5,580

4,760

4,260

3,930

6,980

5,840

4,600

5,090

5,370

4,470

3,970

3,640

3,460

4,730

9,620

9,380

13,400

46,600

57,500

39,700

-

-

Month

Calendar year 1939 ......................

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

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

Kay.. .....................................

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

Water year 1939-40......................

Mar.

23,200

16,600

13,300

11,000

9,380

8,450

.800

,720

,760

,080

,270

,630

,040

,680

,650

,620

,160

,000

,720

,880

5,100

5,320

5,790

6,110

8,490

12,700

47,400

20,200

22,200

69,600

61, BOO

Apr.

29 , 800

20,000

16.000

13,900

12. 200

10,700

10,100

9,990

9,520

9,280

9,400

9,470

10,200

10,900

11,000

9,110

7,800

7,860

8,730

9,140

9,040

9,450

10,000

9,520

8,580

7,620

6,760

6,000

5,760

5,580

-

Seoondfoot-days

14,206

15,471

21,408

518,310

241,740

308,840

427,050

313,410

249,230

96,980

22-, 751

12,002

12,287

1,735,375

May

6,330

8,650

10,800

9,990

8,210

6,780

6,560

7,180

8,540

9,810

10,700

11,300

10,300

9,680

9,350

8,670

8,820

8,180

7,760

7,400

7,800

8,010

7,800

7,720

7,420

6,760

6,110

5,880

5,660

5,320

5,240

Maximum

876

736

1,550

8,500

24,300

57,500

69,600

29,800

11,300

6,240

1,430

486

616

69,600

June

6,240

5,530

4,890

4,620

4,410

4,380

4,240

4,030

3,810

3,480

3,530

3,530

3,480

3,380

3,300

3,150

3,040

2,950

2,800

2,680

2,490

2,440

2,200

2,000

1,980

1,930

1,750

1,640

1,570

1,510

-

July

1,410

1,330

1,200

1,080

962

962

878

830

820

825

785

745

690

642

626

622

642

606

775

558

502

542

570

562

542

538

526

479

482

506

514

Minimum

172

372

489

37

1,060

3,460

4,620

5,580

5,240

1.5DO

479

279

280

172

Aug.

471

486

437

425

414

463

460

467

456

399

384

330

384

384

418

369

351

351

333

406

354

344

387

336

290

279

333

351

344

362

384

Mean

458

516

691

1,420

7,798

10,650

13,780

10,450

8,040

3,233

734

387

410

4,741

Sept.

387

340

297

330

403

384

334

347

f280

f310

422

354

369

410

406

322

425

444

618

578

526

456

482

441

441

437

418

456

326

444

-

Run-off in 

acre-feet

28,180

30,690

42,460

1,028,000

479, 500

612,600

847,000

621,600

494,300

192,400

45,130

23,810

24,370

3,442,000

Peak discharge.- Jan. 9 (8 a.m.) 28,100 aec.-ft.; Jan. 12 (5 a.m.) 32,700 sec.-ft.j Jan. 26 (10 

p.m.) 36,OOS sec.-ft.; Feb. 28 (3 a.m.) 68,100 sec.-ft.; Mar. 27 (7 a.m.) 71,100 aec.-ft.; Mar. 30 

(11 p.m.) 89,200 aec.-ft.

f Discharge computed on baala of partial gage-height record and records for station at Sacramento.

J9-232 February 1936

UNITED STATES DEPARTMEHT OP THE IHTERIOR 

Geological Surrey
308 AMERICAN RIVER BASIN

American River at Sacramento, Calif.

Location.- Water-stage recorder, lat. 38°34'05", long. 121°25'20", at H Street Bridge, 

Just west of Sacramento, Sacramento County, 64 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 

uctober 1940 (low-water periods only) in reports of Geological Survey. 1926-40 (gage 

heights for high-water periods) in reports of Division of Water Resources, Department 

of Public Works, State of California.

Extremes.- Maximum discharge during period June to October 1940, 179 second-feet Oct. 20 

 (gage height, 19.19 feet).

1921, 1929-32, 1934-40: Minimum discharge recorded, 21 second-feet Aug. 14, 1931.

Remarks.- Records excellent except those for days of no gage-height record, which are 

good. Flow regulated by reservoirs, many diversions, and power plants above station. 

Some inflow from Bear and Yubn River Basins.

Discharge, in second-feet, 1939-40

Day

1

a

z

4

5

6

7

S

9

10

11

12

13

14

15

16

17

IS

19

SO

21

82

23

24

25

26

27

28

29

30

31

Oct.

194

204

333

550

5S2

424

439

837

670

576

493

458

444

415

424

401

396

392

410

415

401

463

401

405

498

631

565

45S

401

420

463

Month

1939

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

1940

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

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

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

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

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

The period. ............................

Secondfoot -days

14,103

90 980

2l! 131

11, 520

12, 228

12,840

June

5,820

5,240

4,570

4,330

4,210

4,130

4,040

3,890

3,640

3,370

3,350

3,400

3,350

3,250

3,190

3,070

2,840

2,860

2,600

2,500

2,490

2,280

1,990

1,710

1,700

1,650

1,470

1,390

1,350

1,300

-

Maximum

837

5,820

1,240

450

560

588

.

July

1,240

1,190

1,090

1,010

893

914

S65

754

761

768

735

681

633

59S

6S2

5S2

593

566

693

571

475

495

538

532

516

500

495

465

441

480

475

Aug.

446

450

427

413

386

422

436

441

436

404

376

355

347

351

376

376

339

351

312

372

372

343

347

372

293

274

331

335

335

347

355

Sept.

372

368

293

343

386

399

376

372

293

327

372

390

359

372

404

343

363

422

544

560

516

455

505

a460

a450

a450

413

a480

381

a460

Minimum Mean

194 457

1,300 3,033

441 6S2

274 372

293 408

188 414

_

Oct.

432

417

422

417

432

450

480

460

450

470

475

470

475

386

390

278

224

224

204

188

228

368

490

516

554

465

465

381

465

576

588

Run-off in 

acre-feet

28,090

180,500

41,910

22,850

24,250

25,470

295,000

No gage-height record; discharge computed on basis of records for station at Fair Oaks.
AMERICAN RIVER BASIN 

Middle Fork of American River near Auburn, Calif.

309

Location.- Water-stage recorder, lat. 38°55', long. 121°00', in NWi sec. 5, T. 12 N., R. 

9 E., at Mountain Quarry Co.'s plant, 1.7 miles upstream from confluence with North 

Fork of American River and 3i- miles northeast of Auburn. Altitude of gage, about 580 

feet (from topographic map).

Drainage area.- 619 square miles.

Records available.- December 1930 to September 1940. October 1911 to December 1930, at 

site hair a mile downstream.

Average discharge.- 29 years, 1,342 second-feet.

Extremes.- Maximum discharge during year, 35,600 second-feet Mar. 30 (gage height, 23.2 

reet); minimum, 60 second-feet Oct. 1, Sept. 25, 26, 30.

1911-40: Maximum discharge, about 62,000 second-feet Mar. 25, 1928 (gage 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.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

13 

13 

14 

IS

16 

17 

18 

19 

20

21 

33 

23 

34 

35

36 

27 

28 

29 

30 

31

Oct.

66

114 

178 

200 

146

134 

334 

268 

209 

172

153 

138 

127 

121 

115

107 

104 

100 

96 

92

89 

85 

82 

93 

136

122 

106 

111 

130 

151 

143

HOY.

131 

122 

113 

106 

101

97 

94 

91 

90 

87

84 

83 

82 

81 

79

7S 

77 

76 

75 

73

72 

71 

70 

69

78

122 

130 

104 

95 

92

Dec.

90 

87 

86 

86 

S8

94 

98 

101 

119 

129

449 

464 

291 

212 

178

158 

149 

148 

143 

146

142 

134 

126 

121 

121

114 

108 

111 

114 

288 

350

Jan.

400 

5,700 

4,600 

2,700 

1,900

1,200 

1,200 

3,600 

5,600 

3,350

6,200 

8,200 

3,350 

2,200 

1,650

1,330 

1,120 

992 

912 

835

800 

750 

750 

700 

1,000

11, HOC 

8,600 

4,000 

2,900 

2,400 

2,100

Feb.

2,000 

1,900 

2,400 

3,760 

4,450

4,550 

3,600 

2,650 

2,300 

2,150

2,000 

1,850 

1,750 

2,100 

1,800

1,700 

1,800 

1,900 

1,750 

1,550

1,450 

1,400 

2,600 

4,050 

3,700

5,630 

19,900 

22, 200 

14,000

Month

Oot 

Ho-v 

Dec

C

Jan 

Pel 

Mar 

Apr

Jui 

Jul 

Aug

Sep

W

alendar year 1939 ......................

uary

11.....................................

UBt.................. ..................

ater year 1939-40......................

Mar.

8,140 

6,000 

4,800 

4,040 

3,5SO

3,270 

3,100 

3,160 

3,270 

2,940

2,620 

2,320 

2,140 

2,000 

1,960

2,060 

2,310 

2,200 

2,180 

2,240

2,360 

2,540 

2,770 

2,900 

4,810

12,100 

18,500 

7,880 

13,800 

30,400 

19,800

Apr.

10,900 

7,630 

6,380 

5,480 

4,700

4,180 

4,080 

4,030 

3,890 

3,850

4,020 

4,110 

4,490 

4,870 

4,700

3,680 

3,260 

3,490 

4,000 

4,190

4,190 

4,450 

4,660 

4,370 

3,840

3,280 

2,840 

2,640 

2,580 

2,500

Secondfoot-days

4,222 

2,723 

5,045

200,656

92,839 

122,880 

182,190 

131,280 

109,420 

40,069 

8,796 

2,752 

1,935

704,151

May

2,960 

4,300 

4,730 

4,520 

3,470

3,030 

3,040 

3,3SO 

4,030 

4,520

4,920 

5,140 

4,750 

4,190 

4,OSO

3,710 

3,SOO 

3,480 

3,350 

3,250

3,430 

3,450 

4,410 

3,280 

3,080

2,720 

2,450 

2,340 

2,270 

2,070 

2,320

Mfyylynim

334 

131 

464

3,380

11,800 

22,200 

30,400 

10,900 

5,140 

2,670 

575 

140 

70

30,400

June

2,670 

2,150 

1,940 

1,920 

1,830

1,880 

1,860 

1,770 

1.5SO 

1,470

1,540 

1,550 

1,540 

1,450 

1,390

1,260 

1,300 

1,130 

1,120 

1,020

990 

935 

827 

768 

782

728 

674 

656 

642 

647

July

575 

530 

490 

462 

450

410 

374 

358 

338 

330

310 

294 

2S3 

272 

266

258 

241 

238 

227 

220

213 

199 

188 

185 

173

161 

155 

122 

149 

149 

146

Minimum

60 

69 

86

36

400 

1,400 

1,960 

2,500 

2,070 

642 

146 

66 

60

60

Aug.

140 

131 

125 

122 

120

115 

110 

102 

100 

93

96 

96 

89 

S4 

80

79 

74 

79 

73 

74

74 

73 

70 

68 

70

70 

68 

68 

67 

66 

66

Mean

136 

90.8 

163

550

2,995 

4,237 

5,877 

4,376 

3,530 

1,336 

284 

88.8 

64.5

1,924

Sept.

64 

63 

63 

63 

66

67 

68 

67 

66 

64

64 

63 

63 

63 

66

66 

67 

67 

67 

68

70 

68 

64 

62 

60

60 

62 

62 

62 

60

Run-off in 

acre-feet

8,370 

5,400 

10,010

398,000

184,100 

243, 700 

361,400 

260,400 

217,000 

79,480 

17,450 

5,460 

3,840

1,397,000

Peak discharge.- Jan. 2 (about 8 p.m.) 14,400 sec.-ft.; Jan. 11 (about 12 p.m.) 13,300 aec.-ft.; 

Jan. 26 (about 4 p.m.) 17,900 sec.-ft.; Feb. 27 (11 to 12 p.m.) 27,100 sec.-ft.; Mar. 26 (12 p.m.) 

34,600 sec.-ft.; Mar. 30 (3 to 4 p.m.) 35,600 sec.-ft.

Mote.- Discharge Dec. 31 to Jan. 13 and Jan. 21 to Feb. 23 computed from estimated stage-graph 

based on partial recorder reoord, floodmarks and records for North Fork of American River near 

Coifax and at Rattlesnake Bridge.

9-232 February 193B .Seological Surrey
310 AMERICAN RIVER BASIN

South Fork of American River near Kyburz, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°19', In Si sec. 29, T. 11 N., R. 

15 E., beside Lincoln Highway, 0.5 mile downstream from Silver Fork of South Fork and 

2 miles west of Kyburz. 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 1940.

Average discharge.- 18 years (1922-39), 249 second-feet.

Extremes.- Maximum discharge during year, 4,900 second-feet Mar. 26 (gage height, 7.00 

feet); minimum, 0.4 second-foot Oct. 19.

1922-40: 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 above 10 second-feet and fair below. 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 results of three discharge measurements 

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

Si

22

25

24

25

26

27

28

29

30

31

Oct.

6

44

5.5

3.1

6

11

15

3.2

5

3.7

4.7

3.8

4.0

3.4

2.8

3.1

3.0

10

1.3

1.2

1.1

1.3

1.5

1.9

1.2

1.5

1.4

4.S

1.1

1.2

1.0

HOT.

1.0

.8

1.0

1.0

1.1

1.5

1.4

1.1

1.0

1.2

1.2

1.0

1.2

32

28

24

16

2.2

2.6

3.1

2.5

1.8

1.5

2.0

3.0

2.0

37

20

2.0

2.1

-

Dec.

1.7

1.4

2.0

2.4

2.1

2.4

2.0

1.5

2.0

2.8

61

5.5

2.1

1.6

2.5

2.1

2.0

2.1

2.3

2.4

1.9

1.8

3.4

2.3

2.1

10

2.4

2.6

76

35

3.2

Jan.

21

1,060

282

2S5

160

110

122

192

229

224

374

3S6

216

168

141

127

115

102

90

79

68

62

49

39

175

1,1SO

671

3S2

308

260

237

Feb.

237

204

251

269

237

329

291

224

197

185

177

153

145

143

134

122

123

115

107

102

108

107

206

232

216

268

S19

1,120

723

_

-

Month

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

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

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

Water year 1939-40. .....................

Mar.

501

438

374

336

329

sis

348

412

434

363

31S

275

254

245

257

298

31S

SIS

329

3S2

420

506

593

653

1,130

2,170

2.0SO

1,190

1,420

2,340

1,600

Apr.

1,190

983

999

999

915

87S

90S

670

S76

945

1,030

1,150

1,350

1,410

1,230

908

878

1,060

1,180

1,200

1,230

1,490

1,540

1,470

1,310

1,090

952

87S

843

900

Seeondfoot-days

157.8

196.3

244.6

36,438.2

7 914

7,564

20 999

32^769

51,640

13,142

728 !

64.3

100.1

140,519.2

May

1,280

1,810

1,760

1,610

1,250

1,200

1,230

1,500

1,740

1,960

2,170

2,220

2,110

1,970

1,880

1,900

1,790

1,670

1,630

1,700

1,760

1,790

1,800

1,740

1,750

1,580

1,490

1,440

1,330

1,210

1,300

Maximum

44

37

76

835

1,180

1,120

2,340

1,540

2 220 1)340 130

13

12

2,340

June

1,340

1,250

1,080

1,030

1,020

90S

873

S19

723

723

703

671

653

690

671

653

570

511

476

420

403

355

301

266

209

170

157

160

170

162

July

130

102

94

90

70

59

54

46

24

s.e

1.8

1.7

2.4

2.5

2.0

2.2

13

5

1.4

2.4

2.5

2.4

1.7

1.7

1.9

1.3

2.0

2.2

1.7

1.4

1.6

Minimum

1.0

.3

1.4

.8

21

102

245

S48

1,200

157

1.4

1.0

2.2

.8

Aug.

2.0

2.0

1.9

1.3

1.5

1.1

1.3

1.5

1.8

1.6

1.3

1.0

1.1

1.3

1.6

2.2

1.5

1.6

1.3

1.3

13

2.4

2.2

2.4

1.9

1.8

1.7

2.0

2.0

2.0

o o

Mean

5.09

6.54

7.89

105

255

261

677

1,092

1,666

605

23 .5

2.07

3.34

3S4

Sept.

2.5

3.1

10

12

2.4

3.1

2.4

2.5

2.5

2.9

3.3

3.3

3.4

3.3

3.1

3.1

3.4

3.3

2.4

2.4

2.4

3.3

2.9

2.7

2.5

2.4

2.4

2.4

2.5

2.2

Run-off in 

acre-feet

313

389

435

76,240

15,700

15,000

41,650

65,000

3.02 400

35*980

1,440

128

199

278,700

Peak discharge.- Mar. 26 (10:30 p.m.) 4,900 see.-ft-j Mar. 30 (2 p.m.) 2,970 sec.-ft.; May 11 

(9 p.m.) 2,800 sec.-ft.
AMERICAN RIVER BASIN 

South Fork of American River near Camino, Calif.

311

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 (from topographic map).

Drainage area.- 497 square miles.

Records available.- October 1922 to September 1940.

Average discharge.- 18 years, 721 second-feet.

Extremes.- Maximum discharge during year, 15,400 second-feet Mar. 27 (gage height, 18.55 

feet); minimum, 1.5 second-feet Nov. 17_, is.

1922-40: Maximum discharge, 25,800 second-feet Dec. 11, 1937 (gage height, 25.5 

feet, from floodmark in house), from rating curve extended above 8,000 second-feet; 

minimum, 1.2 second-feet Aug. 24, 1931.

Remarks.- Records excellent. 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 results of four discharge measurements

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet)

0.8

2.5

6

12

21

1.4 

1.8 

2.2 

2.6 

3.0

74

116

170

232

3.5 

4.0 

4.5 

5.0 

5.5

324

436

570

740

970

6.0 

6.5 

7.0 

7.5 

8.0

1,230

1,530

1,830

2,150

2,500

9.0 3,280

4,220

6,460

9,050

11,800

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

IS

14

IS

16

17

IS

19

20

81

22

SS

24

25

26

87

28

29

SO

SI

Oct.

10

53

160

34

23

105

182

109

41

32

36

30

37

42

32

16

15

12

7

9

10

11

5

17

41

25

23

54

67

52

32

HOT.

25

23

21

14

29

17

17

18

18

27

21

7.5

6.5

10

1.9

1.8

1.8

7

12

14

16

13

12

8.5

34

66

15

3.6

14

22

-

Dec.

19

32

15

15

18

26

28

35

26

35

162

160

74

50

33

42

31

27

34

40

29

26

25

26

10

10

23

30

31

255

174

Jan.

142

2,800

1,510

1,350

710

441

405

1,390

2,650

1,660

3,100

3,450

1,610

1,050

756

610

520

473

434

381

333

328

312

298

546

5,040

3,730

2,050

1,510

1,210

1,050

Feb.

1,020

870

1,070

1,890

1,840

1,970

1,930

1,420

1,170

1,020

920

768

732

S52

752

663

740

702

626

600

570

552

1,540

1,900

1,540

2,180

7,840

8,290

5,620

-

Month

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

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

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

Water year 1939-'

liar.

3,600

2,810

2,280

1,910

1,740

1,580

1,550

1,580

1,640

1,460

1,420

1,270

1,210

1,160

1,140

1,220

1,280

1,240

1,130

1,170

1,210

1,340

1,540

1,630

2,920

5,930

9,350

4,950

6,270

11,900

9,550

Apr.

5,990

4,470

3,820

3,550

3,100

2,770

2,700

2,560

2,400

2,440

2,540

2,690

3,070

3,350

3,170

2,270

2,000

2,320

2,690

2,720

2,780

3,050

3,180

3,060

2,620

2,120

1,800

1,670

1,570

1,550

-

Secondfoot-days

1,322

496.6

1,541

108,420.7

41,849

51,587

88, 980

84,020

3l)601

'437.0

356.5

398,123.1

May

2,110

3,440

3,500

3,320

2,270

2,040

2,120

2,600

3,320

3,680

4,160

4,240

4,070

3,660

3,510

3,480

3,370

3,120

2,940

2,940

3,200

3,120

3,090

3,040

2,980

2,600

2,370

2,290

2,120

2,000

2,060

Maximum

182

66

255

2,140

5,040

8,290

11,900

5,990

4,240 

g 290

300

29

21

11, 900

June

2,290

1,990

1,750

1,690

1,630

1,550

1,480

1,450

1,290

1,250

1,280

1,230

1,180

1,190

1,180

1,040

1,010

880

806

710

744

646

543

512

465

401

364

350

350

350

-

July

300

266

252

224

224

184

166

167

133

106

89

64

58

64

71

66

70

79

72

64

54

52

45

48

48

35

38

33

33

35

33

Minimum

5

1.8

10

1.8

142

552

1,130

1,550

2,000 

350

33

8.5

7

1.8

Aug.

27

28

28

29

26

20

18

15

15

12

lo

11

15

9

11

9

11

9.5

9.5

9

9.5

11

11

9.5

8.5

10

11

16

8.5

10

10

Mean

42.6

16.6

49.7

297

1,350

1,779

p'nm 2 870

2 , 992

1,053 

102

14.1

11.9

1,086

Sept.

10

7.5

7

11

15

9 « c 11

10

9

10

9 c

10

11

11

11

11

11

18

20

15

13

10

11

10

11

17

21

13

12

11

-

Run-off in 

acre-feet

2, 620

985

3,060

215,100

83,010

102,300

176, 500

166,700

184,000 

62.680

6,290 

867

707

789,700

Peak discharge.- Jan. 2 (7 p.m.) 6,280 sec.-ft.; Jan. 26 (6 to 7 p.m.) 6,840 sec.-ft.; FeD. 27 

(9 p.m.) 10,500 sec.-ft.; Feb. 28 (12 m.) 9,440 sec.-ft.; Mar. 27 (1 a.m.) 15,400 sec.-ft.; May 30 

(5 p.m.) 14,3OO sec.-ft.
312 AMERICAN RIVER BASIN

South Fork of American River at Coloma, Calif.

Location.- Water-stage recorder, lat. 38°48', long. 120°53', In SW-J- sec. 17, T. 11 N., R. 

10 E., at highway bridge at Coloma and 0.6 mile downstream from Irish Creek. Datum of 

gage Is 730.64 feet above mean sea level (general adjustment of 1929).

Drainage area.- 635 square miles.

Records available.- October 1929 to September 1940.

Average discharge.- 11 years, 946 second-feet.

Extremes.- Maximum discharge during year, 22,000 second-feet Mar. 27 and 30 (gage height, 

18.10 feet); minimum, 77 second-feet Sept. 3.

1929-40: Maximum discharge, 27,000 second-feet Dec. 11, 1937 (gage height, 20.5 

feet), from rating curve extended above 13,000 second-feet; minimum, 17 second-feet Aug. 25, 1931.

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

Flow regulated by four reservlors, diversions for Irrigation, and two power plants above station.

Discharge, In second-feet, water year October 1939 to September 194o

Day

1

Z

3

4

5

6

7

a

9

10

11

12

13

14

IS

16

17ia

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

104

150

274

232

170

181

369

302

226

200

195

195

189

198

209

160

168

158

136

145

158

165

131

158

220

200

187

203

244

220

212

HOT.

189

184

187

176

184

189

184

181

181

187

195

170

138

158

102

95

88

100

160

176

184

173

173

136

189

257

195

133

136

187

-

Dec.

192

195

192

173

181

198

206

203

200

244

358

400

278

244

217

212

217

189

200

209

209

195

195

203

178

133

187

206

206

366

377

Jan.

335

3,110

2,200

1,770

1,080

730

698

2,160

4,360

2,280

4,570

5,260

2,190

1,460

1,110

929

796

736

678

612

555

538

516

495

960

6,170

4,840

2,5OO

1,860

1,530

1,360

Feb.

1,300

1,160

1,390

2,300

2,440

2,430

2,460

1,810

1,520

1,340

1,220

1,080

1,040

1,550

1,260

1,070

1,290

1,300

1,O9O

1,000

929

884

2,110

2,680

2,270

2,960

12,100

21,500

9,160

-

Month

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

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

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

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

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

Water year 1939-4 0. .....................

Mar.

5,180

3,790

3,030

2,540

2,270

2,060

1,980

1,970

2,030

1,840

1,680

1,490

1,420

1,350

1,340

1,380

1,470

1,420

1,390

1,460

1,520

1,660

1,820

1,930

3,160

6,160

13,300

6,060

7,520

18,000

14,700

Apr.

7,860

5,500

a4,500

a4,000

a3,500

3,220

3,160

3,070

2,830

2,880

2,970

3,100

3,440

3,790

3,690

2,740

2,420

2,690

3,1OO

3,140

3,150

3,400

3,620

3,460

3,040

2,550

2,210

2,030

1,910

1,900

-

Secondfoot-days

6,059

4,987

6,963

168, «15

58, 388

75,643

116,920

103)570

8^254

4)879

523,801

May

2,360

3,630

4,060

3,770

2,690

2,400

2,450

2,360

3,620

4,090

4,560

4,680

4,480

4,040

3,930

3,790

3,830

3,470

3,290

3,200

3,490

3,490

3,400

3,360

3,300

2,950

2,680

2,600

2,450

2,320

2,330

Maximum

369

257

400

2,320

6,170

12,500

18,000

7,860

4,680

517

19X

191

18,000

June

2,650

2,310

2,040

1,960

1,910

1,820

1,760

1,720

1,550

1,500

1,510

1,460

1,420

1,410

1,420

1,280

1,270

1,140

1,080

987

987

915

803

748

705

625

575

570

570

595

-

July

517

466

434

414

410

383

327

166

306

306

270

242

233

236

227

227

230

233

242

227

224

200

206

197

197

188

186

194

194

186

186

Minimum

104

88

133

43

335

884

1,340

1 90O

2)320

166

133

128

88

Aug.

177

172

174

174

180

188

191

188

180

166

161

154

177

161

169

152

172

159

152

152

140

142

149

144

142

142

142

152

133

144

149

Mean

195

166

225

462

1,883

2,608

3,772

3,296

3,341

1,310

266

161

163

1,445

Sept.

152

133

12S

161

166

154

166

159

149

156

147

156

166

164

164

166

164

166

186

177

174

161

166

161

164

183

191

174

164

161

-

Run-off in 

acre-feet

12,020

9,890

13,810

334,500

115,800

150,000

231, 900

196,100

205, 400

77,930

16,370

9,870

9,680

1,049,000

__ _ _ _ _ -_.- _ .) 7,250 sec. -ft.} Jan. 11 (10 p.m.) 8,74O sec. -ft.; Jan. 26 

(7 p.m.) 8.600 sec. -ft.; Pel). 27 (lo p.m.) 15,900 sec. -ft.; Mar. 27 (3 a.m.) 22.OOO sec. -ft.; Mar30 (7 p.m.) 22,000 sec. -ft.

a No gage-height record; discharge computed on basis of records for station at Camino and 

American River at Pair Oaks.
AMERICAN RIVER BASIN 313

Echo Lake flume near Vade, Calif.

Location.- Water-stage recorder, lat. 38°50', long. 120°02', in NWi sec. 6, T. 11 N., R.R 

IB 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 November 1940.

Extremes.- Maximum daily discharge during season, 26 second-feet Sept. 12, 13, 15, 16, and 

22; no flow during most of year.

1923-40: 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. Practically no available 

contents in Echo Lake on Nov. 8, 1940.

Discharge, In second-feet, 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Sept.

0

0

0

0

0

0

0

0

0

16

24

26

26

25

26

26

25

25

25

25

25

26

25

24

24

23

22

21

20

19

-

Oct.

18

17

16

15

14

13

12

11

11

10

9

S.5

7.5

7

6-5

6

5.5

5

4.8

4-6

4.1

3.9

3-5

3.3

4.0

3.7

3.3

2.7

2.6

2.3

2.0

llov.

2.0

3.5

3.4

3.2

2 *8

3.4

4.3

2.0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Month

September 1940. ...........................

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

Seoondfoot-days

498

236.8

24.6

-

MflytufMfll

26

18

4.3

-

Minimum

0

2.0

0

-

Mean

16 >6

7.64

.82

-

Run-off in 

aore-feet

988

470

49

1,510

Note.- No flow during 1940 calendar year except as shown.

400454 0-41-21
314 AMERICAN RIVER BASIN

Medley Lakes outlet near Vade, Calif.

Location.- Water-stage recorder, lat. 38°51', long. 120°08', In SWi sec. 29, T. 12 N., R. 

17 E., 1 mile, downstream from main dam at Medley Lakes and 5 miles northwest of Vade 

post office. Altitude of gage, about 8,100 feet (from topographic map).

Drainage area.- 6.2 square miles.

Records available.- September 1922 to September 1940 (None for winter In most years).

Average discharge.- 18 years, 15.9 second-feet.

Extremes.- Maximum discharge during year, 93 second-feet June 16 (gage height, 2.32 feet); 

minimum not determined.

1922-40: Maximum discharge, 202 second-feet June 15, 16, 1929 (gage height, 3.42 

feet); no flow at times In most years.

Remarks.- Records good except those for periods of Ice effect or no gage-height record, 

which are fair. Practically no available contents In Medley Lakes, above station, on 

Sept. 30, 1939, and on Sept. 30, 1940.

Cooperation.- Water-stage recorder graph and results of one discharge measurement furnished 

by Pacific Gas & Electric Co. In connection with a Federal Power Commission project.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

0.1 

.2 

.3 

.4

0.1

.5 

1.0

0.5 1.8 

2.8 

4.5 

6.5

0.9 

1.0 

1.2 

1.4

1.6 

l.S 

2.0 

2.2

40 

52 

67 

S3

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

a

3

t

s

6

7

a

9

10

11

12

13

14

15

18

17

18

19

SO

SI

22

23

24 

25

26

27

28

29

30

31

Oct.

aS

aS

a3

3.3

3.0

3.6

3.5

2.8

6.5

30

30

32

34

35

39

44

37

26

60

58

50

45

44

41 

34

22

15

13

13

12

10

Xov.

8.5

S

e

7

7

6

4.5

4.3

4.0

3.6

3.3

3.0

2.6

2.4

2.3

2.2

2.2

2.1

1.6

al.5

al.5

al.5

al.4

1.4 

1.5

1.8

1.9

1.8

1.7

1.7

-

Dec.

1.7

 1.7

al.6

1.6

1.6

1.9

2.5

2.4

2.4

2.4

5.5

6.5

6.5

6

5.5

5

4.5

4.3

4.2

4.0

3.8

3.6

3.5

3.3 

a3

a3

aS

a3

8.5

12

14

Jan.

15

22

31

28

26

26

26

27

28

28

28

29

28

a27

a26

a25

23

> a20

J

Feb.

. alo

,

-

-

Month

Calendar year 1939 ......................

March. .................... ... ,

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

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

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

Water year 1939-410. .....................

Mar.

i

. all

'

Apr.

, a!4

Secondfoot-days

755.7

100.3

132.5

4,002.5

732

290

341

420

908 *5

1, 693

1,535 

"L r 526 -0

124.5

8,549.5

May

b!8

b20

b22

b24

b26

b28

b30

b32

b34

b36

b3S

b40

31

11

8

9

9.5

9.5

9.5

8

10

21

23

41 

53

52

51

51

53

50

60

Ifa^miiB

60

8.5

14

81

_

_

_

60

82

74

85

4.9

85

June

57

50

51

52

52

52

54

53

54

55

55

55

55

69

80

82

81

81

80

79

79

77

77

39 

6

7

24

424."

47

July

46

45

44

43

40

36

35

33

30

26

24

34

43

37

32

43

53

52

51

51

51

50

64

74 

73

72

72

71

70

70

70

«Hn<nT.im

2.S

1.4

1.6

-

_

_

_

8

6

24

4 -9

2.2

1.4

Aug.

7S

85

S4

82

81

81

80

78

77

77

76

74

73

72

71

69

68

66

65

34

6

4.9

4.9

a4.9 

a4.9

a4.9

a4.9

a4.9

4.9

4.9

4.9

Mean

24.4

33.4

4.27

11.0

23.3

10

11

14

29.3

56.4

49 »5

49.2

4.15

23.4

Sept.

a4.9

a4.9

a4.7

a4.7

a4.7

4.7

4.5

4.5

4.5

4.5

4.3

4.2

4.2

4.2

4.2

4.2

4.3

4.3

4.5

4.5

4.3

4.2

4.2

4.0 

4.0

3.5

2.2

2.5

3.0

3.1

Run-off in 

acre-feet

1,500

199

263

7,930

1,430

575

676

833

1,800

3,360

3,040

3,030

247

16,950

a Ho gage-height record; discharge computed on basis of records for station at Silver Lake outlet, and a discharge measurement on Apr. 30. 

b Stage-discharge relation affected by ice.
AMERICAN RIVER BASIN 315

Silver Lake outlet near Kirkwood, Calif.

Location.- Water-stage recorder, lat. 38°40', long. 120°08', in SWi sec. 32, T. 10 N., R.

17 E., 1,000 feet downstream from Silver Lake Dam and 3 miles southwest of Kirkwood.

Altitude of gage, about 7,200 feet (from topographic map). 

Drainage area.- 14.9 square miles. 

Records available.- September 1922 to September 1940. 

Average discharge.- 18 years, 30.5 second-feet. 

Extremes.- Maximum discharge during year, 321 second-feet May 12 (gage height, 3.92 feet);

minimum, 0.4 second-foot Nov. 14-16.

1922-40: 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 excellent. Contents in Silver Lake was 3,520 acre-feet on Sept. 30,

1939, and 1,850 acre-feet on Sept. 30, 1940. In addition to the 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 Silver Lake near Kirkwood

(see following page) represents practically entire outflow from Silver Lake. 

Cooperation.- Water-stage recorder graph and results of three discharge measurements

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission

project.

Rating table, water yea? 1939-40 (gage height, in feet, and discharge, In second-feet)

0.5 

.6 

.7

0.2 

1.0 

3.0 

6.0

0.9 

1.0 

1.2 

1.4

9.5 

14.0 1.8 

2.0 

2.2

56

74

92

110

2.6 

3.0 

3.4 

3.8

151 

196 

24S 

304

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

Z

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

90

31

Oct.

23

10

.7

.7

.7

.8

.7

.7

.7

5.5

19

19

19

19

19

19

16

19

19

19

19

19

19

19

26

38

46

39

35

40

56

Hov.

67

72

74

72

70

69

67

65

63

61

60

58

38

.4

.4

.4

54

53

50

49

46

44

42

38

37

24

.6

19

31

28

-

Dec.

25

21

18

16

14

13

12

11

11

10

12

12

11

10

10

9.5

9

8.5

8

7.5

5

4.2

6.5

6

5.5

5.5

5

4.8

4.5

5

5.5

Jan.

7

23

34

34

34

33

32

32

32

31

31

31

29

28

28

26

25

24

23

21

21

20

19

18

20

24

28

29

29

23

28

Feb.

28

27

26

26

25

26

25

24

24

23

22

23

21

20

18

16

15

14

13

14

13

14

14

14

14

14

12

27

31

_

-

Month

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

Xuwh............ .........................

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

Uav

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

Hater year 1939-413......................

liar.

IS

18

17

16

16

15

15

15

16

16

16

16

16

16

16

16

17

IS

23

24

24

26

27

29

31

35

42

43

45

46

47

Apr.

48

49

49

48

47

47

46

46

46

46

48

50

52

55

58

58

60

61

64

66

68

71

81

124 139'

118

97

83

76

76

-

Seoondfoot-daya

586.5

1,352.8

306.0

4,989.6

822

583

735

1 9YY

7^235

797.4

44.5

87.4

2,100.4

16,627.0

May

98

194

251

237

176

147

148

184

238

280

301

308

304

293

236

259

254

252

247

251

266

277

279

276

262

235

213

203

188

173

155

n fi T ^ imttB

56

74

25

94

34

31

47

139

308

1643 >6

3.6

109

308

June

164

156

97

53

14

6.5

6

3.9

4.5

5

5.5

4.2

5.5

20

52

40

14

8

6.5

6

21

27

16

13

20

14

4.2

2.0

1.8

1.8

July

1.8

1.6

1.6

2.0

1.4

.9

1.0

1.0

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

.6

.6

.6

2.0

3.6

3.6

3.6

3.6

3.6

Minimum

0.7

.4

4.2

.1

7

12

15

46

98

1.8

.6 

2.4

2.4

.4

Aug.

3.6

3.6

3.6

3.3

3.3

3 .3

3.3

3.0

3.0

3.0

3.0

3.0

3.0

2.8

2.8

2.8

2.6

2.6

2.6

2.6

2.6

2.

2.

2.

2.

2.

2.

2.4

a2.4

a2.4

a2.4

Mean

18.9

45.1

9.87

13.7

26 »5

2o!l

65 »9

233

oe e

feO >o 

1.44

2 »82

70.0

45.4

Sept.

2.4

14

76

109

107

107

106

105

90

83

81

80

78

77

76

74

72

70

69

67

66

63

61

59

57

54

53

50

49

46

Run-off In 

acre- feet

1,180

2,680

607

9,900

1,630

1,160 

1,460

3,920

14,350

1; 580

88 

j. i *Mto

4,170

32,980

a No gage-height record; discharge Interpolated.

9-2S2 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
316 AMERICAN RIVER BASIN

Seepage from Silver Lake near Klrkwood, Calif.

Location.- Staff gage, lat. 38°40', long. 120°07', In SWi sec. 32, T. 10 N., B. 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 1940. 

Average discharge.- 11 years, 3.68 second-feet.

Extremes.- Maximum discharge observed during year, 18 second-feet June 18 to July 5; no 

flow during most of year.

1929-40: Maximum discharge observed, 25 second-feet June 9, 1930; no flow during 

most of each year.

Remarks.- Records good. Gage read once daily. No flow when Silver Lake gage height Is 

below 14.0 feet. This record represents largest amount of seepage from Silver Lake 

through porous rock formation; other seepage from Silver Lake is of little or no consequence. The discharge at this station combined with that for Silver Lake outlet near 

Klrkwood (see preceding page) represents practically entire outflow from Silver Lake.

Cooperation.- Water-stage recorder graph and results of two discharge measurements

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Hating tat>le, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

1.0

1.2

1.3

1.4

.4 

1.0 

2.1

1.5

1.6

1.7

1.8

3.8 

6.0 

9.0

12.4

1.9

2.0

15-8 

19.6

Discharge, in second-feet, water year October 1939 to September 194O

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. Hov. Dec. Jan. Feb.

Month

Dot 

Hov 

Deo

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

tag 

Sep

V

 uary

11.....................................

 ter year 1939-4

Mar. Apr.

Seoondfoot-days

0

O 

O

1,554.9

0 

0 

0 

O 

O 

365.7 

469 

255.5 

34.9

1,125.1

May

Hafnium

O

o

0

15

O 

0 

0 

0 

O 

IS 

IS 

12 

6

18

June

1.1 

1.2 

1.3 

1.3 

2.1

4.2 

5.5 

6 

7 

8.5

9.5 

11 

12 

14 

14

16 

17 

18 

IS 

IS

18 

IS 

18 

18 

IS

18 

18 

18 

IS 

IS

July

IS 

18 

IS 

18 

18

17 

17 

17 

17 

16

16 

16 

a!6 

a!6 

16

a!5 

a!5 

a!5 

14 

a!4

a!4 

14 

a!4 

a!3 

a!3

13 

a!3

a!2 

12 

alE 

a!2

Minimum

O

o

0

0

0 

0 

0

o

0

1.1

12 

6 

0

0

to*.

12 

a!2 

all 

all 

11

all 

alO 

10 

alO 

alO

a9 

9 

a9 

a8 

a8

8 

a8 a?" 

7 

a7

a6.5 

6.5 

a6.5 

a6 

a6

6 

6 

a6 

6 

a6 

a6

Mean

0 

O

o

3.71

0 

O 

0

o

0 

12.2 

15.1 

S.24 

1.16

3.07

Sept.

6 

a6 

5.5 

5 

4.0

3.1 

2.1 

1.7 

1.0 

.5

0 

0 

O 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Run-off In 

acre-feet

0 

0 

0

2,690

0 

0 

0 

0 

0 

725 

930 

507 

69

2,230

a Ho gage-height record; discharge interpolated.

9-2S2 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Qeologlcal Surrey
AMERICAN RIVER BASIN 

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

317

Location.- Water-stage recorder, lat. 38°45', long. 120°17', In MEi sec. 34, T. 11 N., R. 

15 E., 2 miles upstream from mouth and 2 miles southeast of Kyburz. Altitude of gage, 

about 4,850 feet (from topographic map).

Drainage area.- 108 square miles.

Records available.- August 1924 to September 1940.

Average discharge.- 16 years, 191 second-feet.

Extremes.- Maximum discharge during year, 3,400 second-feet Mar. 26 (gage height, 6.70 

feet); minimum, 9.5 second-feet part of Nov. 16 and 17 (gage height, 1.13 feet).

1924-40: Maximum discharge, 5,450 second-feet Dec. 11, 1937 (gage height, 8.30 

feet), from rating curve extended above 2,500 second-feet on basis of velocity-area 

studies; minimum, 1.4 second-feet Dec. 6, 1929.

Remarks.- Records good except those for periods 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 graph and results of three discharge measurements 

furnished by Pacific Gas & Electric Co. In connection with a Federal Power Commission 

project.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In second-feet)

1.0 

1.2 

1.4 

1.6

6

11.5 2.0 

2.4 

2.6

48

69

126

220

3.2 

3.6 

4.5 

5.5

350

525

1,130

2,060

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

s

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

84

25

26

27

28

29

30

31

Oot.

39

58

31

22

18

26

38

24

18

16

24

32

32

32

32

31

31

26

29

29

29

29

29

31

34

47

60

66

54

53

62

 or.

75

79

85

96

97

98

98

100

103

94

91

91

91

32

12

9.5

30

82

103

103

106

104

102

103

106

89

37

36

106

104

-

Dec.

102

97

94

100

98

100

97

96

89

67

124

82

77

91

91

96

94

94

97

98

94

90

91

73

74

104

96

96

103

76

50

Jan.

64

658

184

210

126

102

111

153

168

168

261

264

175

148

140

a!30

a!20

a!05

a95

a85

a 80

a75

a75

71

144

818

476

274

228

202

194

Feb.

204

177

212

220

197

254

228

187

165

156

151

136

130

123

121

114

112

106

112

111

112

104

160

184

170

217

525

755

462

_

-

Month

Calendar year 1939 ......................

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

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

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

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

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

Water year 1939-40......................

Mar.

325

290

254

228

226

226

245

290

290

254

223

199

189

187

192

231

248

248

261

297

325

374

412

444

825

1,530

1,470

790

970

1,770

1,100

Apz*«

776

614

703

722

648

624

654

630

654

716

776

860

978

986

895

602

602

716

762

755

811

874

867

839

748

586

498

453

435

471

-

Seoondfoot-days

1,082

2,462.5

2,831

41,567.5

6,104

5,905

14, 913

21 255

28^348

10,174

2,117

2,372

3,220

100,783.5

"ay

696

1,030

1,030

925

678

642

672

813

1,010

1,140

1,240

1,260

1,200

1,110

1,040

1,020

948

888

839

853

881

932

932

881

955

895

853

832

762

696

690

Hudnuoi

66

106

124

466

818

755

1,770

986

1,260

722

130

133

142

1,770

June

722

a700

a620

a570

a490

a460

a440

a 420

a400

a370

a330

a320

340

380

370

310

280

270

270

251

245

237

207

180

189

180

165

156

156

146

-

July

130

112

108

104

102

98

96

93

81

70

52

49

51

52

61

73

73

61

56

54

54

59

59

46

45

45

46

46

46

46

49

Minimum

16

9.5

50

9.5

64

104

187

435

642

146

45

42

79

9.5

Aug.

50

44

42

42

42

45

47

50

51

53

53

55

56

56

58

59

59

58

60

67

121

114

118

121

121

121

121

121

121

123

123

Mean

34.9

82.1

91.3

114

19*7

204

481

708

914

339

68.3

76.5

107

275

Sept.

123

124

142

140

123

128

121

123

126

124

118

108

106

104

103

102

102

102

98

96

94

102

100

98

98

88

85

82

81

79

Run-off In 

acre-feet

2,150

4,880

5,620

82,440

12,110

11,710

29,580

42 160

56^230

20,180

4,200

4,700

6,390

199,900

Peak dla_____ .- Mar. 26 (10 p.m.) 3,400 sec.-ft.; Mar. 30 (1 p.m.) 2,320 sec.-ft.3 May 11

(10 p.m.} 1,540 sec.-ft.

a Ho gage-height record; discharge computed on basis of records for South Pork of American River 

near Kyburz and regulation at Twin and Silver Lakes.

9-232 February 1956 Geological Survey
318 AMERICAN RIVER BASIN

Twin Lakes outlet near Klrkwood, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°42', long. 120°03', In SWi 

sec. 18, T. 10 N., R. 18 E., 500 feet downstream from main dam and outlet gate of 

Twin Lakes and 1 mile east of Klrkwood. Altitude of gage, about 7,900 feet.

Drainage area.- 12.4 square miles.

Records available.- September 1922 to September 1940 (October 1934 to September 1940 

include flow over Twin Lakes spillway).

Average discharge.- 18 years, 31.0 second-feet (Including flow over Twin Lakes spillway).

Extremes.- Maximum combined dally discharge during year for outlet and spillway, 198 

second-feet Apr. 4; minimum, 1.3 second-feet Oct. 18-22, Nov. 27.

1922-40: Maximum combined dally discharge for outlet and spillway, 269 secondfeet June 9, 10, 1938; minimum, 0.2 second-foot (leakage) at various times.

Remarks.- Records excellent. No diversions. Contents in Twin Lakes was 14,250 acre-feet 

on Sept. 30, 1939, and 15,320 acre-feet on Sept. 30, 1940. No flow over Twin Lakes 

spillway during water year 1939-40.

Cooperation.- Water-stage recorder graph and results of two discharge measurements furnisned by the Pacific Gas & Electric Co., in connection with a Federal Power Commission project.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

0.1 0.4 0.4 7.0 0.7 23.5 1.0 50 1.3 82 1.6 - - - 

1.5 .5 11.5 .8 31.0 1.1 60 1.4 94 1.7

.3 3.S .6 17.0 .9 40 1.2 71 1.5 106 1.8

120

135

151

1.9 167

2.0 135

2.1 203

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

?,

3

4

5

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

21

fif,

88

84

25

26

27

28

29

SO

31

Oct.

1.5

2.0

2.0

2.0

2.0

2.0

2.0

1.7

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.4

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

HOT.

1.5

5

15

20

22

26

2S

33

32

24

26

2S

21

1.5

1.5

1.5

14

51

53

54

57

57

58

63

52

34

1.3

67

69

69

-

Dec.

69

69

73

78

80

80

80

80

50

47

60

50

56

70

72

76

75

76

SI

81

80

84

69

59

76

90

86

86

69

33

23

Jan.

23

16

11

11

10

16

32

31

31

31

31

31

30

30

31

31

25

12

11

10

10

10

10

10

10

10

10

10

S

1.7

1.5

Feb.

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

-

-

Month

Calendar ysar 1939 ......................

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

Water year 1939-4

Mar.

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.7

2.0

2.4

2.0

1.5

1.5

1.5

1.5

Apr.

1.5

36

167

19S

192

187

183

17S

174

171

165

161

157

154

122

59

55

24

1.7

2.0

2.0

2.0

1.7

1.5

1.5

1.5

1.5

1.5

1.5

2.0

-

Seoondfoot-days

48.2

985.3

2,15S

11,563.4

2 404 9

3,298

1,309 

780.5

14,142.3

Hay

2.0

2.0

2.0

1.5

1.5

1.5

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.7

1.7

1.7

1.7

2.0

25

154

159

159

159

157

157

156

jU-riimin

2.0

69

90

110

32

159

157

106 

106

198

June

157

157

156

156

135

120

120

120

120

94

76

76

113

154

141

114

116

126

126

117

106

99

80

68

76

76

76

76

76

71

-

July

55

49

49

49

49

49

49

40

27

9

4.S

9

11

20

31

36

28

20

19

20

27

31

22

17

17

17

17

17

17

22

24

Minimum

1.3

1.3

1.0

68

16 

1.5

1.3

Aug.

19

17

16

17

19

24

24

27

28

31

32

36

36

37

40

40

40

42

4S

7S

105

101

106

106

106

106

105

105

106

106

106

Mean

1.55

32. S

69.6

31.7

37 7

110

58.4 

26.0

38.6

Sept.

106

99

43

1.5

1.5

1.5

5

15

25

31

19

16

16

16

16

19

20

20

20

20

26

30

30

34

30

25

25

25

25

20

-

Run-off In 

acre-feet

96

1,950

4,280

22,920

6,540

3,590 

1,550

28,050

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
AMERICAN RIVER BASIN 319

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 miles west of Kyburz. Altitude of 

gage, about 4,100 feet (from topographic map).

Records available.- October 1922 to September 1940.

Average discharge.- 18 years, 97.4 second-feet.

Extremes.- Maximum daily discharge during year, 156 second-feet July 4; no flow Nov. 15

1922-40: Maximum daily discharge, 165 second-feet June 24, 27, 28, and 30, 1938; 

no flow at times in most years.

Remarks.- Records excellent. Canal diverts from left bank of South Fork of American 

River just below Silver Fork of South Pork and 2 miles below Kyburz; water used for 

power and irrigation.

Cooperation.- Water-stage recorder graph and results of two discharge measurements furnlshed by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

21

22

29

24

25

26

27

28

29

30

31

Oct.

65

104

91

65

54

94

104

74

66

73

92

102

112

111

107

103

99

66

95

107

102

96

92

93

99

102

113

126

109

98

102

HOT.

114

116

123

130

128

129

127

129

130

119

116

114

113

22

0

0

22

92

116

114

117

117

113

114

125

107

26

21

130

125

-

Dec.

122

120

114

120

119

122

123

119

121

86

119

116

107

115

115

121

118

117

120

123

117

108

117

92

84

120

117

119

123

123

117

Jan.

120

104

110

99

98

99

99

99

98

98

98

98

98

98

98

98

98

90

87

87

87

87

95

98

97

88

86

87

87

94

98

Feb.

98

98

98

98

97

98

98

98

98

98

98

98

98

98

98

98

98

98

98

98

98

99

98

98

98

98

93

88

86

-

-

Month

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

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

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

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

Water year 1939-4

Mar.

87

88

88

86

86

86

86

87

86

86

86

86

86

87

87

86

84

84

85

87

86

86

87

87

87

84

76

77

77

69

66

Apr.

67

67

67

67

74

77

84

86

94

98

106

110

110

112

113

112

113

115

114

114

114

31

3

3

3

3

3

3

3

3

-

Secondfoot-days

2,926

2,949

3,574

38,449

2 978

2, 815

2,606

2,069

3, 037

4,334

4,555

4,451 

4,163

40, 457

May

3

3

3

3

3

3

3

52

98

99

107

116

119

126

133

134

134

134

134

134

134

136

137

136

136

136

136

136

136

136

137

MflTfj.ffniTH

126

130

123

152

120

98

88

115

137

155

156

155 

153

156

June

137

137

136

137

137

137

137

136

136

136

137

138

141

147

149

148

149

150

150

.149

149

149

148

148

151

154

154

155

153

149

-

July

151

154

155

156

154

155

155

154

153

152

134

124

139

139

141

149

155

154

149

144

140

145

14 e

151

146

144

144

144

144

140

142

Minimum

64

0

84

0

86

86

66

3

3

136

124

139 

110

0

Aug.

141

147

146

144

142

144

143

144

142

144

143

144

144

141

142

143

142

139

139

139

155

143

142

145

148

146

144

144

144

144

143

Mean

94.4

98.3

115

105

96.1

9V 1

84!l

69.0

98.0

144

147

144 

139

111

Sept.

140

140

150

153

140

148

138

138

143

138

145

146

144

143

142

140

151

150

144

140

137

144

143

140

141

126

120

116

113

110

-

Run-off in 

acre-feet

5,800

5,850

7,090

76,250

5,910

5 580

5^170

4,100

6,020

8,600

9,030

8,830 

8,260

80,240

Hote.- Ho gage-height record Apr. 

ent made Apr. 29.

23 to May 7; discharge computed on basis of discharge measure9-292 February 1936

UNITED STATES DEPARTMENT OF THE INTHIIOR 

Geological Survey
320 AMERICAN RIVER BASIN

Alder Creek near Whitehall, Calif.

Location.- Water-stage recorder, lat. 38°45', long. 120°22', in SWi sec. 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 1940. Published records include diversions 

by pipe line.

Average discharge.- 18 years, 30.1 second-feet.

Extremes.- Maximum discharge during year, 770 second-feet Mar. 26 (gage height, 4.70 

feet); minimum, 0.1 second-foot at times during October, November, December, and 

June.

1922-40; Maximum discharge, about 1,760 second-feet Mar. 25, 1928 (gage height, 

7.1 feet, from floodmark); minimum, 0.1 second-foot at times in 1924, 1926, 1931, 

1933-40.

Extremes do not include flow in feeder pipe line.

Remarks.- Records fair October to December and for June, good for remainder of year. 

Records include computed flow in feeder pipe line that diverted Just above station 

into El Dorado canal, Oct. 2 to June 24.

Cooperation.- Water-stage recorder graph and results of three discharge measurements 

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

g

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

SO

81

22

25

24

25

26

27

28

29

30

31

oot.

0.4

2.4

1.6

3.,

2. )

2.

1.

1.

1.

1.

1.

1.

1.

1.

lov.

1.3

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.3

1.6

1.4

1.3

1.2

1.2

-

Dec.

1.3

1.3

1.3

1.3

1.3

1.4

1.5

1.6

1.6

2.8

9.5

6.5

6.5

6

6

5.5

.5

.5

.5

.5

.5

.5

Jan.

6.5

71

50

98

48

27

31

105

154

144

188

197

116

82

61

48

40

35

32

29

26

24

S3

22

75

355

256

180

142

124

111

Feb.

102

88

120

136

134

160

150

127

109

97

85

75

69

66

58

53

53

47

43

43

43

43

111

124

120

152

3SS

450

338

_

-

Month

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

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

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

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

Water year 1939-

Mar.

254

213

180

156

138

127

125

125

125

116

106

95

38

82

80

95

88

87

85

85

85

87

92

100

166

354

486

357

402

606

492

Apr.

380

313

266

231

198

176

163

154

144

, 136

133

133

134

140

133

124

116

115

115

113

113

115

115

107

101

94

85

77

71

68

-

Seoondf cot-days

28.9

34.4

124.4

3,973.8

2,900.5

3,584

5,679

4,373

1,499

184.9

25.9

8.8

6.4

13,449.2

May

68

74

77

82

77

73

68

66

66

69

69

68

63

58

53

53

46

41

39

35

34

34

28

26

24

21

20

IS

17

16

16

Maximum

2.5

1.6

9.5

106

355

450

606

380

82

14

2.2

.4

.3

606

June

14

14

13

12

11

11

10

10

9

8

7

6

.6

.5

.5

.6

.1

.1

3.6

3.1

3.1

2.6

2.6

2.7

2.7

2.7

2.5

2.5

2.7

2.7

-

July

2.2

1.8

1.5

1.5

1.3

1.3

1.0

1.0

.8

.8

.8

.8

.8

.8

.8

.6

.6

.6

.6

.4

Minimum

0.4

1.0

1.3

.1

6.5

43

80

68

16

2.5

.4

.2

.2

.2

Aug.

0.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Mean

0.93

1.15

4.01

10.9

93.6

124

183

146

48.4

6.16

.84

.23

.21

50.4

Sept.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

-

Run-off in 

acre-feet

57

68

247

7,890

5,750

7,110

11,260

8,670

2,970

367

51

17

13

36,580

Peak discharge.- Jan. 12 (2 a.m.) 252 sec.-ft.; Jan. 26 (1 p.m.) 426 sec.-ft.; Feb. 27 (6 p.m.) 

4S9 sec.-ft.; Feb. 26 (10 a.m.) 492 sec.-ft.; Mar. 26 (10:30 p.m.) 770 sec.-ft.; Mar. 30 (3 p.m.) 

716 sec.-ft.

Note.- Record incomplete and partly estimated, Oct. 10-24, Nov. 3-24, Dec. 14-31, June 3-12, 

16-23, Aug. 4-9.

9-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
AMERICAN RIVER BASIN 

Silver Creek at Union Valley, Calif.

321

Location.- Water-stage recorder, lat. 38°52', long. 120°26', in SEi sec. 20, T. 12 N., 

RTI4E., 1 mile downstream from confluence of North and Middle Forks, near lower end 

of Union Valley. Altitude of gage, about 4,530 feet.

Drainage area..- 82.7 square miles.

Records available.- October 1924 to September 1940.

Average .discharge.- 15 years (1924-27, 1928-40), 190 second-feet.

Extremes.- Maximum discharge during year, 5,800 second-feet Mar. 26 (gage height, 12.0 

feet); minimum, 4.2 second-feet Aug. 30 to Sept. 2.

1924-40: Maximum discharge, 8,560 second-feet Dec. 11, 1937 (gage height, 15.28 

feet), from rating curve extended above 2,200 second-feet on basis of velocity-area 

studies; minimum, 1.9 second-feet Au£. 27, 28, 1931.

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

No diversions above station.

Rating table, water year 1939-40 (gage height, In feet, and discharge, In aecond-feet)

0.4 2.4 1.8 114 4.5 856 

.6 7.2 2.0 144 5.0 1,070 

.3 17 2.4 216 5.5 1,310 

1.0 31 2.S 304 6.0 1,580 

1.2 46 3.2 410 7.0 2,160 

1.4 65 3.6 534 8.0 2,800 

1.6 87 4.0 668 9.0 3,500

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

S 

3

4 

S

6 

7 

8 

9 

10

11 

18 

13 

14 

IS

16 

17 

18 

19 

20

81 

88 

83 

84 

85

86 

27 

88 

29 

30 

31

Oct.

8.5 

37 

41 

40 

45

100 

74 

68 

60 

42

37 

33 

30 

25 

22

19 

16 

15 

13 

12

12 

10 

9.5 

13 

18

23 

31 

60 

44 

35 

28

Bov.

23 

18 

16 

15

14

13 

13 

12 

11 

11

11 

10 

10 

10 

10

9.5 

9.5 

9 

9 

9

9 

9 

9 

8.5

13

19 

16 

17 

15 

16

Dec.

16 

18 

IS 

17 

17

22 

2S 

27 

27 

32

88 

55 

40 

34 

30

30 

29 

30 

29 

28

24 

20 

24 

23 

16

23 

21 

21 

95

111 

77

Jan.

90 

1,410 

434 

426 

214

147 

127 

271 

416 

328

690 

823 

374 

260 

202

178 

165 

154 

142 

136

120 

110 

110 

110 

200

1,750 

1,000 

600 

400 

350 

310

Feb.

309 

269 

401 

502 

402

580 

446 

318 

276 

262

254 

226 

216 

204 

210

192 

189 

183 

17S 

171

171 

171 

434 

440 

365

566 

1,510 

1,680 

877

Month

Dot 

Hov 

Dec

C

Jan 

Fet 

Mar 

Apr

3SJul 

£sBep

«

alondar year 1939 ......................

nary

&::::::::::::::::::::::::::::::::::::

ater year 1939-

Mar.

590 

518 

446 

396 

38S

374 

399 

428 

452 

382

336 

294 

280 

276 

287

338 

354 

344 

351 

402

425 

489 

544 

586 

1,160

2,470 

2,740 

1,140 

1,940 

3,290 

1,620

Apr.

992 

789 

697 

651 

576

540 

603 

590 

573 

627

700 

786 

909 

942 

S16

560 

540 

708 

823 

808

836 

930 

925 

828 

654

505 

434 

407 

388 

434

May

726 

1,120 

946 

828 

550

521 

634 

S16 

1,010 

1,080

1,140 

1,100 

989 

942 

880

938 

836 

789 

736 

767

840 

751 

740 

697 

627

534 

483 

458 

425 

396 

583

foTSays ""^

1,021 100 

374.5 23 

1,070 111

35,129.5 674.

12,047 1,750 

12,002 1,680 

24,039 3,290 

20,576 992 

23,882 1,140 

7,146 512 

813.5 66 

175.8 9 

152.1 7.5

103,298.9 3,290

June

512 

399 

376 

371 

362

362 

354 

344 

306 

321

321 

304 

282 

262 

236

222 

216 

1S7 

180 

155

164 

138 

111 

120 

113

92 

91 

86 

82 

77

July

6& 

59 

53 

51 

45

41 

38 

36 

34 

32

29 

27 

25 

25 

23

22 

20 

20 

19 

IS

16 

15 

14 

13 

12

11 

10 

10 

10 

10 

9.5

Aug.

9 

8.5 

8 

7.5 

7

7 

6.5 

6.5 

6.5 

6

6 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5 

5 

4.8

4.8 

4.5 

4.5 

4.5 

4.5

4.8 

4.5 

4.5 

4.5 

4.2 

4.2

Sept.

4.2

4.2 

4.5 

5 

5.5

5.5 

5 

4.8 

4.5 

4.5

4.5 

4.5 

4.5 

4.8 

4.8

5 

6.5 

7.5 

6.5 

6

5.5 

5.5 

5 

5 

4.8

4.8 

4.8 

4.8 

4.8 

4.8

Mini* Mean %£%£

8.5 32.9 2,030 

8.5 12 . 5 743 

16 34.5 2,120

2.6 96.2 69,680

90 389 23,890 

171 414 23,810 

276 775 47,680 

388 686 40,810 

396 770 47,370 

77 238 14,170 

9.5 26.2 1,610 

4.2 5.67 349 

4.2 5.07 302

4.2 282 204,900

Peak discharge.- Jan. 2 (6 p.m.) 2,770 sec.-ft.; Feb. 27 (9 p.m.) 2,470 sec.-ft.; Feb. 28 (11:30 

a.m.) 2,090 sec.-ft.; Mar. 26 (11 p.m.) 5,800 sec.-ft.; Mar. 30 (3 p.m.) 4,020 sec.-ft.; May 10 

8 p.m.) 1,720 sec.-ft.

Note..- Ho gage-height record Jan. 21-30; discharge computed on basis of records for station near 

Placervllle.

9-838 February 1938

oo jjjErArt'i'ajiftA WA *\Js 

Geological Survey
322 AMERICAN RIVER BASIN

Silver Creek near Placerville, Calif.

Location.- Water-stage recorder, lat. 38°47', long. 120°S5', in SWi sec. 13, T. 11 N., 

RT 12 E., a quarter of a mile upstream from mouth and 12 miles northeast of Placerville. Altitude of gage, about 2,240 feet (from topographic map).

Drainage area.- 176 square miles.

Records available.- December 1921 to September 1940.

Average discharge.- 18 years (1922-40), 364 second-feet.

Extremes.- Maximum discharge during year, 9,040 second-feet Mar. 26 (gage height, 11.1 

feet); minimum, 26 second-feet Nov. 17.

1921-40: 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 excellent. No diversions above station.

Rating table, water year 1939-40 (gage height, in feet, and discharge in second-feet)

1.5 

1.7 

2.0 

2.3 

2.6

65

102

154

3.0 

3.5 

4.0 

4.5 

5.0

246

400

590

820

1,100

6.0 

7.0 

8.0 

9.0 

10.0

1,780

2,730

3,950

5,410

7,050

Discharge, In second-feet, water year October 1939 to September

Day

1

2

3

4

5

6

7

8

9

11

12

13

14

IS

16

17

18

19

20

81

28

SS

24

25

86

27

SO

Oct.

31

82

101

80

84

178

196

147

127

110

95

83

81

75

68

61

58

56

50

47

44

41

39

46

56

53

56

81

88

76

63

HOT.

52

46

41

39

37

34

33

32

31

31

31

31

31

31

31

31

30

31

31

31

31

31

31

31

39

60

47

44

41

42

-

Dec.

42

41

40

39

40

46

46

48

48

57

154

104

76

65

58

58

57

56

56

56

52

41

51

51

42

44

42

44

82

194

138

Jan.

149

1,910

735

810

425

294

288

S20

1,350

930

1,680

1,110

892

607

472

397

356

317

294

274

252

246

230

228

510

3,040

1,880

1,100

830

694

632

Feb.

611

542

745

1,160

1,030

1,180

1,090

845

720

654

611

550

530

538

510

472

491

465

436

418

407

407

979

1,070

898

1,310

4,260

4,350

2,610

_

-

Month

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

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

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

Water year 1939-4

Mar.

1,680

1,380

1,160

1,010

936

860

860

870

881

800

720

645

619

590

598

658

676

650

650

694

720

795

860

925

1,640

3,690

5,000

2,410

3,460

6,620

4,470

Apr.

2,620

1,970

1,660

1,530

1,340

1,220

1,260

1,220

1,160

1,160

1,250

1,310

1,490

1,610

1,480

1,070

980

1,160

1,380

1,380

1,380

1,480

1,550

1,440

1,220

964

830

790

755

755

-

Seoondfoot-days

1,968

69,590

14,204

3,150 

1 225

1,206

206,444

May

1,100

1,720

1,640

1,520

1,020

920

1,000

1,270

1,580

1,720

1,810

1,800

1,700

1,560

1,480

1,540

1,490

1,370

1,300

1,320

1,420

1,350

1,300

1,240

1,210

1,020

914

845

805

775

835

HoTfiimMM

194

1,180

920

215

50

6,620

June

920

730

650

650

619

632

611

603

562

534

590

554

546

518

491

443

468

422

404

366

393

349

288

291

302

296

254

249

236

233

-

July

215

183

168

164

160

143

131

127

118

116

112

101

98

96

95

88

86

82

77

75

74

70

70

68

65

64

63

62

61

60

58

Minimum

31

39

12

233

58

36

30

Aug.

55

54

53

52

49

48

45

44

44

41

39

38

36

34

34

34

34

34

34

34

34

34

34

35

35

36

36

36

36

36

37

Mean

79.1

36.1

63.5

191

1,031

473

102

40.2

564

Sept.

38

38

39

42

43

44

43

43

42

41

40

40

41

41

40

40

39

50

46

41

39

36

36

36

36

36

38

39

39

40

Run-off In 

acre-feet

4,870

2,150

3,900

138,000

59,280

94,270

28,170

6,250

2,390

409,600

Peak discharge.- Jan. 2 (2 p.m.) 3,680 sec.-ft.j Jan. 26 (3 p.m.) 3,810 sec.-ft.; Feb. 27 (9 

.m.) 6.050 sec.-ft.; Feb. 28 (12 m.) 5,110 sec.-ft.; Mar. 26 (11:30 p.m.) 9,040 sec.-ft.; Mar. 

> p.m.) 7,950 sec.-ft.

30

9-888 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
AMERICAN RIVER BASIN 

South Fork of Silver Creek near Ice House, Calif.

323

Location.- Water-stage recorder, lat. 38°49', long. 120°22', in SWi sec. 1, T. 11 N., 

R. 14 E., half a mile upstream from Peavine Creek, 14 miles northeast of Ice House, 

and 8 miles northeast of Riverton. Altitude of gage, about 5,300 feet (from topographic map).

Drainage area.- 28.4 square miles.

Records available.- October 1924 to September 1940. July to October 1922, at site 1 

mile upstream.

Average discharge.- 16 years, 66.9 second-feet.

Extremes.- Maximum discharge during year, 942 second-feet Mar. 26 (gage height, 4.05 

feet); minimum, 1.8 second-feet Aug. 26-29.

1924-40: 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. No diversions.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in second-feet)

0.3 1.0

.4 3.0

.5 6.5

0.6

.8

1.0

11

23

38

1.2 

1.4 

1.6

56

81

116

1.8 

2.0 

2.4

158

206

312

2.8 

3.2 

3.6

428

562

718

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

a

3

4

s

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

El

88

83

84

25

26

87

88

89

30

31

Oct.

4.4

14

13

15

22

38

35

32

28

23

21

19

18

16

15

13

12

11

9.5

9

8

7.5

7

9

9.5

11

13

22

22

18

15

HOT.

13

11

10

9

9

8.5

8

7.5

8

8

8

7.5

7

6.5

6.5

6.5

6

6

6

6

6

5.5

5

5

5.5

6.5

6

7

6

7

-

Dec.

7

7

7.5

8

8.5

7.5

8

8

9

9

16

9.5

10

9

9

8

7.5

8.5

9

6.5

7

7

8.5

7.5

8

8.5

7.5

7.5

26

44

37

Jan.

35

262

143

78

55

41

32

44

50

59

84

103

70

54

48

36

35

35

32

30

28

28

27

26

44

199

227

133

89

73

66

Feb.

66

60

67

71

68

89

78

65

59

57

55

51

50

46

51

49

44

45

45

44

41

41

70

70

67

83

135

165

116

-

-

Month

Hovember ..................................

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

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

Ifay .......................................

Ally......................................

Water year 1939-4 ^. .....................

Mar.

91

87

77

71

70

68

71

78

81

74

67

63

58

58

59

64

65

67

68

80

91

112

133

154

279

537

624

341

389

540

354

Apr.

24S

198

172

156

139

131

141

143

145

165

199

240

304

340

284

199

189

253

312

315

340

380

398

354

284

206

170

152

148

172

-

Secondfoot-days

509 .9

217 is

343.0

13,454.3

2,266

1,948

4 971

e|877

12,240

4,708

106 ! 6

83.4

35,048.4

May

290

457

450

380

240

224

253

362

463

512

548

544

519

492

479

499

479

444

419

434

466

438

425

410

386

326

290

271

250

229

261

Maximum

38

13

44

255

262

165

624

398

548 

290

54

6.5

3.7

624

June

290

237

206

214

219

214

211

206

187

192

206

199

194

162

170

158

160

141

131

116

129

106

86

94

94

78

78

75

73

60

July

54

52

51

51

45

40

39

38

36

32

30

28

26

26

23

22

21

18

17

15

13

13

12

11

11

10

10

9

9

8.5

7.5

IHntimm

4.4

5

7

1.2

26

41

58

131

224 

60

7.5

1 8

Z\Q

1.8

Aug.

6.5

6

6

5.5

5

5

5

4.S

4.8

4.4

4.0

3.7

3.7

3.4

3.0

3.0

2.8

2.8

2.6

2.6

2.4

2.2

2.2

2.0

2.0

1.8

1.8

1.8

1.8

2.0

2.0

Mean

16.4

7.25

11.1

36.9

rit. n Id. ±

67.2

160

229

395 

157

25 1

3. 44

2.78

95.8

Sept.

2.0

2.0

2.2

2.6

2.8

2.8

2.8

2.6

2.6

2.6

2.6

2.6

2.8

2.8

3.0

3.0

3.4

3.7

3.7

3.4

3.0

3.0

3.0

2.8

2.8

2.6

2.6

2.6

2.6

2.4

Run-off In 

acre- feet

1,010

431

680

26,690

4,490

3,860

9,860

13,640

24,280

9,340 

1,540

211

165

69,510

Peak discharge.- Mar. 26 (10 p.m.) 942 sec.-ft.; Hay 11 (10 p.m.) 684 sec.-ft.

9-838 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
324: AMERICAN RIVER BASIN 

American River flume near Camino, Calif.

Location.- Water-stage recorder, lat. 38°46', long..120°42', in SWi sec* 25, T. 11 N., 

P. 11 E., 300 feet upstream from Iowa Canyon Creek, 1 mile downstream from diversion 

dam, and 3 miles northwest of Camino. Altitude of gage, about 1,710 feet (from 

topographic map).

Records available.- November 1922 to September 1940. 

Average discharge.- 18 years, 95.1 second-feet.

Extremes.- Maximum daily discharge during year, 173 seeond-feet Mar. 22 and Apr. 21; no 

flow Mar. 11-18 and Apr. 5.

1922-40: Maximum daily discharge, 176 second-feet June 30, 1938, Feb. 24, 1939; 

no flow at times in each year.

Remarks.- Records good. Flume diverts water from South Fork of American River in SWi 

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 three discharge measurements 

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

alOO

122

134

140

143

151

156

156

160

161

15S

154

158

164

162

140

154

149

127

143

146

153

120

140

162

154

155

165

166

163

158

HOT.

156

158

158

156

166

156

162

160

162

166

164

144

137

124

89

87

86

123

151

164

164

156

152

138

166

166

146

111

138

162

-

Dec.

162

166

152

156

154

163

162

164

158

165

167

167

166

163

156

167

165

160

161

164

157

160

162

161

143

136

166

169

166

168

168

Jan.

16S

16S

167

167

168

164

160

166

165

164

166

165

166

166

166

166

166

167

166

160

156

156

154

154

160

166

167

166

^.66

168

167

Peb.

167

167

168

167

167

167

168

168

16S

167

167

166

166

166

165

165

165

165

166

166

166

166

166

165

165

165

162

156

162

_

-

Month

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

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

Water year 1939-40...... ................

Mar.

164

164

164

164

164

164

164

164

164

144

0

0

0

0

0

0

0

0

78

146

165

173

167

164

150

137

122

107

113

74

33

Apr.

37

3S

43

17

0

38

80

117

130

142

164

171

172

170

170

166

170

172

172

172

173

172

172

172

171

170

170

170

170

170

-

Seoondfoot-daya

4,614

4,368

4,996

49,524

5,091

4 804

3 249

4,' 051

5 117

A ' 7P1

4)582

4,185 

4,443

54,231

May

170

170

170

168

166

16S

168

166

166

164

166

167

166

166

166

165

164

164

163

164

164

163

162

162

162

162

163

163

163

163

163

Maximm

166

166

169

176

168

168

173

173

170

163

161

145

162

173

June

162

162

162

161

161

161

161

161

161

161

162

163

163

162

162

162

162

162

162

160

160

157

152

152

149

145

152

158

161

162

-

July

159

156

154

150

150

145

141

148

157

161

157

150

151

150

150

147 147-

147

148

145

142

139

138

150

142

140

144

146

142

138

148

MiniMua

100

86

136

0

154

156

0

0

162

145

138

124

124

0

Aug.

140

139

142

133

143

142

143

144

144

129

131

128

135

124

138

124

138

128

128

127

127

136

136

132

130

134

138

135

125

142

145

Mean

149

146

161

136

164

166

105

135

165

159

148

135

148

148

Sept.

146

12S

124

162

15S

136

160

154

144

149

144

152

152

154

150

154

150

154

152

148

152

139

147

140

144

160

161

144

144

141

-

Run-off in 

acre-feet

9,150

8,660

9,910

98,230

10,100

9,530

6,440

8,040

10,150

9)090

8,300

8,810

107,700

a Ho gage-height record; discharge computed on basis of records of power-plant output.

9-232 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey .
CACHE CREEK BASIN 

Clear Lake at Lakeport, Calif.

325

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 1,318.59 

feet above mean sea level (general adjustment of 1929).

Drainage area.- 420 square miles, Including water surface of lake (65 square miles). 

Records available.- 1S74-1900 (incomplete) and January 1913 to September 1940.

Extremes.- Maximum gage height during year, 8.40 feet Mar. 2; minimum, -0.35 foot Nov. 

22-29 and Dec. 1-10.

1913-40: Maximum gage height, 11.12 feet Jan. 28, 1914; minimum, -3.50 feet Sept. 

24-27, 1920.

Remarks.- This natural lake Is regulated by a concrete over-flow type clam 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 and diverted for Irrigation.

Cooperation.- Record of dally gage heights furnished by Clear Lake Water Co.

Gage height, In feet, water year October 1939 to September 194O

Day

1

2

S

4

e

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

SO

SI

Oct.

0.10

.10

.05

.02

.00

-.02

-.05

-.02

-.02

-.02

-.05

-.05

-.05

-.08

-.08

-.08

-.08

-.10

-.12

-.12

-.12

-.12

-.12

-.12

-.15

-.15

-.15

-.15

-.18

-.20

-.20

Nor.

-0.2O

-.20

-.20

-.20

-.22

-.22

-.22

-.28

-.28

-.28

-.30

-.30

-.30

-.30

-.30

-.30

-.30

-.30

-.30

-.30

-.30

-.35

-.35

-.35

-.35

-.35

-.35

-.55

-.35

-.30

Dee.

-0.35

-.35

-.35

-.35

-.35

-.35

-.35

-.35

-.35

-.35

-.30

-.20

-.18

-.18

-.15

-.15

-.15

-.15

-.15

-.15

-.15

-.15

-.15

-.15

-.15

-.15

-.15

-.15

-.15

-.12

-'.10

Jan.

O.OO

.32

.40

.52

.60

.65

.90

1.00

1.35

1.55

1.65

1.75

1.82

1.88

1.90

1.95

1.95

1.95

1.95

1.95

1.95

2.00

2.00

2.02

2.05

2. 32

2.50

2.60

2.70

2.70

2.75

Feb.

2.85

2.90

2.95

3.10

3.22

3.30

3.40

3.45

3-50

3.52

3.55

3.58

3.60

3.85

3.95

4.00

4.30

4.55

4.65

4.75

4.78

4.85

4.88

4.90

4.95

5.05

5.92

7.05

8.05

_

-

Mar.

8.30

S.4O

S.30

8.30

S.20

8.10

7.95

7.88

7.70

7.65

7.55

7. -40

7.30

7.20

7.15

7.15

7.12

7.20

7.25

7. £5

7.22

7.25

7.25

7.28

7.30

7.35

7.45

7.50

7.50

7.82

8.15

Apr.

8.20

8.20

8.20

S.10

8.00

7.95

7.8S

7.75

7.65

7.55

7.50

7.50

7.50

7.50

7.50

7.50

7.52

7.52

7.50

7.48

7.45

7.40

7.40

7.35

7.35

7.35

7.35

7.30

7.28

7.25

-

May

7.25

7.25

7.25

7.25

7.28

7.28

7.28

7.28

7.25

7.22

V.2O

7.18

7.15

7.12

7.10

7.08

7.05

7. 02

7.OO

6.98

6.95

6.92

6.90

6.85

6.80

6.78

6.75

6.70

6.68

6.68

6.68

June

6.65

6.62

6.60

6.55

6.50

6.48

6.45

6.40

6.40

6.40

6.32

6.25

6.25

6.22

6.22

6.18

6.12

6.10

6.05

6.00

5.95

5.90

5.9O

5.90

5.88

5.80

5.80

5.75

5.72

5.70

-

July

5.68

5.60

5.58

5.52

5.50

5.45

5.40

5.35

5.30

5.25

5.22

5.18

5.15

5.10

5.05

5.02

4.98

4.95

4.90

4.88

4.82

4.80

4.78

4.78

4.70

4.65

4.60

4.55

4.52

4.50

4.42

Aug.

4.40

4.35

4.35

4.30

4.25

4.22

4.20

4.20

4.15

4.10

4.1O

4.05

4.00

4.00

3.95

3.92

3.90

3.85

3.80

3.75

3.72

3.68

3.68

3.65

3.62

3.60

3.55

3.52

3.50

3.45

3.42

Sept.

3.35

3.28

3.25

3.22

3.20

3.18

3.15

3.15

3.10

3.10

3.08

3.08

3.05

3.05

3.02

3.02

3.02

3.00

3-00

2.98

2.98

2.98

2.98

2.95

2.92

2.9O

2.90

2.88

2.88

2.85

-

9-2S8 September 19S7

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
326 CACHE CREEK BASIN

Cache Creek at Yolo, Calif.

Location.- Water-stage recorder, lat. 38 043 I 30", long. 121°48'25n , 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 1940.

Average discharge.- 37 years, 506 second-feet.

Extremes.- Maximum discharge during year, 28,700 second-feet Feb. 28 (gage height, 29.0 

feet); no flow for several months.

1903-40: Maximum discharge, that of Feb. 28, 1940; 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 discharges above 6,000 second-feet, which are 

fair-. Numerous diversions above station for irrigation; storage in Clear Lake.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

SO

21

22

23

24

25

86

27

28

&

30

51

Oct. HOT. Dec. Jan.

0

186

800

996

896

358

253

2,480

3,020

1,570

1,870

918

522

361

272

210

162

131

106

89

73

61

57

54

57

3,240

1,940

881

582

444

375

Feb.

403

385

485

1,100

876

734

901

713

589

501

449

401

377

2,160

1,560

916

1,S30

2,010

1,160

876

704

604

528

461

446

624

18,200

26,200

17,300

_

-

Month

Calendar year 1939 ......................

Jan 

Pet 

Mar

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

toy.. .....................................

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

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

Water year 1939-4 3 ......................

liar.

8,490

6,500

5,420

4,850

4,510

4,180

4,040

3,900

3,890

3,540

3,430

3,330

3,280

3,220

a2,150

al,050

978

944

911

872

840

807

775

744

713

694

3,270

3,380

3,960

11,100

10,600

Apr.

6,760

5,420

4,860

4,540

4,290

4,100

3,970

3,880

3,770

3,650

3,430

al,450

al,000

a700

578

504

528

762

725

676

744

814

78S

769

769

924

872

807

756

719

-

Seeondfoot-days

0

0

0

3,751.3

22,964 

83,493 

106,168

62,555

6,157

191.3

0

0

0

281,528.2

May

488

276

236

222

240

236

137

151

199

291

287

291

291

287

265

251

244

207

190

173

138

141

128

100

106

103

89

81

41

54

154

Maximum

0

0

0

164

3,240 

26,200 

11,100

6,760

488

95

0

0

0

26,200

June

95

68

28

,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

-

July

i|ipl?BmB

0

0

0

0

0

377 

694

504

41

0

0

0

0

0

Aug.

Mean

0

0

0

10.3

741 

2,879 

3,425

2,085

199

6.37

0

0

0

769

Sept.

Run-off in 

acre-feet

0

0

0

7,440

45,550 

165,600 

210, 600

124,100

12,210

379

0

0

0

558,400

Peak diecharge.- Jan. 8 (11 p.m.) 4,880 sec.-ft.; Jan. 26 (8 p.m.) 4,680 sec.-ft.; Feb. 17 

(8 p.m.) 3,6aO sec.-ft.; Feb. 28 (3 p.m.) 28,700 sec.-ft.; Mar. 27 (1 p.m.) 4,390 sec.-ft.; Mar. 

30 (7.p.m.) 14,900 sec.-ft.

a Incomplete or no gage-height record; discharge computed on basis of partly or wholly estimated 

gage-height graph.

-83B February 1936 Geological Survey
CACHE CREEK BASIN 

North Fork of Cache Creek near Lower Lake, Calif.

327

Location.- Water-stage recorder, lat. 39°01', long. 122°33', in NEi sec. 31, T. 14 N., 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 1,035.43 feet above mean sea level 

(general adjustment of 1929).

Drainage area.- 214 square miles.

Records available.- July 1930 to September 1940.

Average discharge.- 10 years, 151 second-feet.

Extremes.- Maximum discharge during year, 20,000 second-feet Feb. 28 (gage height, 13.9 

reet), by slope-area method and logarithmic plotting; minimum, 0.2 second-foot Oct. 1 

to Dec. 1.

1930-40: Maximum discharge, that of Feb. 28, 1940; no flow at times in each year 

1930 to 1936.

Remarks.- Records good. Several small diversions above station.

Discharge, In eecond-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

IS

16

17

18

19

20

21

82

23

84

85

26

27

88

29

30

31

Oct.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Sov.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.8

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Dec.

0.2

.3

.3

.3

.3

.3

.4

.4

.5

1.2

1.1

.6

.6

.6

.6

.8

.9

.9

1.0

1.0

l.O

1.1

1.4

1.2

1.3

2.3

2.6

3.0

4.0

16

53

Jan.

637

803

340

1,060

299

188

412

1,950

1,330

1,530

986

542

353

266

208

174

149

131

114

100

90

83

84

eo

1,190

1,850

888

560

411

325

386

Feb.

32S

299

674

654

67O

736

670

516

418

36O

307

268

539

1,39O

802

565

1,440

1,000

724

575

476

418

356

316

350

2,300

11,400

12,400

4,880

-

Month

Calendar year 1939 ......................

Jan

Fel

y?-n

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

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

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

Water year 1939-40......................

Mar.

2,820

2,000

1,080

786

625

526

482

450

402

356

321

266

259

244

235

226

205

190

180

172

162

152

148

145

142

936

1,160

916

3,030

6,190

3,620

Apr.

2,120

1,180

906

743

651

560

530

480

424

384

352

324

296

260

255

231

209

194

182

169

161

152

145

141

154

169

152

130

122

118

-

Secondfoot -days

6.2

6.0

99.2

8,375.2

17,519 

46,051 

28,446

11,914

2,547

771.0

115.4

31.1

27.6

107,533.4

May

110

102

100

179

154

124

112

102

102

98

. 94

90

87

81

SO

76

71

68

64

62

59

56

54

53

50

48

47

46

46

64

68

Mn-rimnm

0.2

.2

53

278

1,950 

12,400 

6,190

2,120

179

59

8

1.6

1.5

12,400

June

59

54

50

44

42

40

37

35

32

31

29

27

26

24

22

22

21

20

19

19

17

15

14

1§

12

11

10

9.5

9

8.5

-

July

8

7.5

6.5

6

5.5

4.8

4.5

4.2

4.0

4.0

3.7

3.7

3.5

3.5

3.3

3.3

3.3

3.5

3.5

3.3

3.3

3.1

2.9

2.6

2.4

2.2

2.2

2.0

2.0

1.6

1.5

l*^nlTn"«ii

0.2

.2

.2

.1

80 

266 

142

118

46

8.5

1.5

.7

.6

.2

Aug.

1.6

1.5

1.5

1.4

1.4

1.2

1.2

1.1

1.1

1.1

1.1

l.O

1.0

.9

1.0

1.0

.9

.9

1.0

.9

.8

.8

.8

.9

.8

.7

.7

.7

.7

.7

.7

Mean

0.2

.2

3.20

22.9

565 

1,588 

918

397

82.2

25.7

3.72

1.00

.92

294

Sept.

0.6

.7

.7

.8

.9

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

1.0

1.5

1.3

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

-

Run-off in 

acre-feet

12

12

197

16,610

34,750 

91,340 

56,420

23,630

5.050

1,530

229

62

55

213,300

Peak discharge.- Jan. 8 (11 a.m.) 3.340 sec.-ft.; Jan. 25 (9:30 p.m.) 2,910 sec.-ft.; Feb. 17 

(1(5 a.m.) 2,700 see.-ft.; Feb. 28 (5 am.) 20,000 sec.-ft.; Mar. 26 (8 p.m.) 3,260 aec.-ft.; Mar. 

30 (6 a.m.) 6,640 Bee.-ft.

9-832 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oeologlcal Survey
328 PUTAH CREEK BASIN

Putah Creek near Guenoc, Calif.

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 Sir miles downstream from highway bridge at Guenoc. 

Datum of gage Is 913.4 feet above mean sea level (river-profile survey).

Drainage area.- 112 square miles.

Records available.- February 1904 to July 1906, July 1930 to September 1940.

Average discharge.- 10 years (1930-40) 171 second-feet.

Extremes.- Maximum discharge during year, 21,900 second-feet Feb. 27 (gage height, 21.5 

feet); minimum, 0.8 second-foot July 26 (gage height, 1.05 feet).

1904-6, 1930-40: 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 except those for periods of no gage-height record, which are fair. 

Small diversions above station.

Rating table, ater year 1939-40 (gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Aug. 10 to Sept. 30)

666

1,040

1,660

2,450

3,350

4,370

11.0

12.0

13.0

14.0

15.0

5,500

6,700

8,000

9,400

10,900

17.0 14,100

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.4

2.4

2.3

2.3

2.3

2.3

2.1

2.1

2.0

2.0

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.8

1.8

1.8

1.9

1.9

1.9

1.9

1.9

1.8

1.8

1.8

Hov.

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

 1.7

1.7

1.7

1.8

1.8

2.0

2.1

2.0

2.0

2.0

2.0

-

Dec.

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.1

2.1

402

295

43

18

10

7

5.5

4.7

4.3

4.1

4.1

3.9

4.1

4.8

5.5

5.5

5.5

6

6.5

12

27

174

Jan.

2,190

2,480

838

1,750

510

436

1,470

4,460

2,500

1,600

1,160

763

498

366

286

234

200

174

155

137

124

114

113

108

2,310

3,670

974

600

439

354

442

Feb.

418

326

1,130

669

495

570

458

369

310

269

237

214

1,160

1,830

707

504

2,360

853

610

480

403

347

299

271

390

6,010

14,100

11,200

3,900

_

-

Month

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

Calendar year 1939 ......................

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

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

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

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

Water year 1939-40......................

Mar.

2,400

1,100

800

649

537

455

398

357

317

284

252

230

213

196

185

180

164

149

140

130

121

114

108

105

103

1,470

1,110

710

3,180

5,430

2,190

Apr.

1,070

752

629

510

426

371

376

376

317

280

252

232

214

200

185

173

162

153

142

133

128

121

118

114

137

162

128

113

105

98

Seoondfoot-days

61.5

55.0

1,070.7

12,876.0

31,455

50,889

23,777

8,177

1 ^989

704

276.0

183 .3

122.0

118,759.5

May

92

90

90

142

123

102

91

84

79

74

70

67

63

61

58

56

52

50

48

46

44

42

42

41

38

36

35

34

34

49

56

Maxfcnu*

2.4

2.0

402

652

4,460

14,100

5,430

1,070

142

47

14

7

4.6

14,100

June

47

45

40

36

33

31

29

28

27

26

25

23

22

20

20

20

20

20

20

18

18

17

16

16

16

15

14

14

14

14

-

July

14

13

12

11

10

10

10

9.5

9.5

9.5

9

9

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8

8

7.5

5

7

7.5

7.5

7

7

Hini^

1 o ±*o

1.7

2.0

1.7

108

214

103

98

34

14

5

4.6

3.8

1.7

Aug.

7

6.5

6.5

6.5

6.5

6

6

6

6

6

6

6

6

6

5.5

5.5

5.5

5.5

5.5

5

5

4.8

4.8

4.8

4.8

4.6

Mean

1.98

1.83

34.5

35.3

1,015

1,755

767

273

64.2

23.5

8.90

5 «91

4.' 07

324

Sept.

4.6

4.6

4.6

4.4

4.4

4.4

4.4

4.2

4.2

4.2

4.2

4.0

4.0

4.0

4.0

3.8

3.8

3.8

3.8

3.9

3.9

3.8

3.8

3.9

3.9

3.9

3.9

3.9

3.9

3.8

-

a^-Set"

122

109

2,120

25,530

62,390

100,900

47,160

16,220

3,950

1,400

547

364

242

235,500

Peak discharge.- Jan. 1 (10 p.m.) 5,520 sec.-ft.; Jan. 8 (10 a.m.) 7,920 sec.-ft,; Jan. 26 (6:30 

a.m.) 6,100 sec.-ft.; Feb. 17 (6 a.m.) 5,280 sec.-ft.; Feb. 27 (3 a.m.) 21,900 sec..-ft.; Mar. 30 

(8 a.m.) 7,280 sec.-ft.

Note.- No gage-height record Feb. 27 to Mar. 3, Aug. 24 to Sept. 18; discharge computed on basis 

of discharge measurements made on Mar. 3 and Aug. 27, range of stage, and records for stations near 

Winters and North Fork of Cache Creek near Lower Lake.
PUTAH CREEK BASIN 329

Putah Creek near Winters, Calif.

Location.- Water-stage recorder, lat. 38°31', long. 122°05', in NEi sec. 28, T. 8 N., R. 

<J W., 6 miles west of Winters and 8 miles downstream from Capell Creek. Datum of gage 

is 160.75 feet above mean sea level. Prior to Feb. 29 at datum about 1 foot lower.

Drainage area.- 614 square miles.

Records available.- June 1930 to September 1940. 1905-31 at site at Winters, 6 miles 

downstream; records equivalent except for very low flows.

Average discharge.- 10 years (1930-40), 417 second-feet.

Extremes.- Maximum discharge during year, 70,500 second-feet Feb. 27 (gage height, 30.5 

feet, present datum); minimum, 1.8 second-feet Oct. 13.

1905-40: Maximum discharge, that of Feb. 27, 1940; minimum (at present site), 0.3 

second-foot Aug. 23, 24, 26, 27, 1931, and Aug. 7, Sept. 24, 25, 1939.

Revisions: The maximum discharge for the water year 1937 has been revised to 50,800 

second-feet Feb. 4 (gage height, 25.4 feet), superseding figure published in WaterSupply Papers 831, 843, 861, and 881.

The maximum discharge for the water year 1938 has been revised to 48,100 second-feet 

Dec. 11 (gage height,'24.8 feet), superseding figure published in Water-Supply Papers 

843 and 861.

Remarks.- Records excellent above 10 second-feet and good below, 

tion divert water for irrigation.

Several pumps above staDischarge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

1112

13 

14 

15

16. 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

89 

30 

31

Oct.

.3 

.4 

.6 

.8 

.8

5.5 

5.5 

4.1 

3.1 

2.5

2.2 

1.9 

1.8 

2.3 

2.6

2.8 

3.3 

3.3 

3.0 

3.0

3.0 

3.7 

4.0 

4.1 

3.7

3.1 

3.7 

4.1 

4.0 

3.4 

3.1

Hov.

3.1 

3.4 

3.6 

3.8 

4.6

4.8 

4.8 

4.8 

5 

5

4.8 

5 

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 

6 

4.8 

4.4

Dec.

4.3 

4.1 

4.1 

3.8 

3.8

4.0 

5.5 

6.5 

7 

9.5

161 

197 

79 

39 

23

16 

14 

13 

12 

11

11 

11 

11 

11 

11

10 

10 

10 

11 

11 

11

Jan.

62 

4,900 

2,060 

3,330 

1,240

802 

1,050 

11,400 

7,030 

3,400

3,290 

2,060 

1,220 

844 

648

528 

441 

378 

330 

288

256 

234 

222 

216 

1,990

13,400 

3,530 

1,670 

1,150 

880 

774

Feb.

880 

718 

1,520 

1,970 

1,220

1,070 

1,200 

860 

722 

630

553 

489 

480 

7,400 

2,270

1,400 

4,860 

2,960 

1,660 

1,260

1,040 

896 

778 

690 

718

4,490 

54,500 

43,900 

16,000

Month

Oot 

Nov 

Dec

C

Jan 

Fat 

Mar

Apr

Jim 

Jul 

Aug 

Sep

«

ember. .................................

 nary

ater year 1939-4

Mar.

4,880 

3,140 

2,390 

1,940 

1,620

1,440 

1,240 

1,100 

988 

888

808 

735 

675 

628 

597

573 

536 

488 

458 

428

404 

378 

356 

338 

338

526 

4,310 

1,610 

5,500 

26,100 

9,850

Apr.

4,230 

2,630 

2,110 

1,800 

1,520

1,320 

1,200 

1,200 

1,080 

947

856 

789 

728 

675 

625

577 

533 

498 

473 

437

413 

392 

375 

361 

372

524 

464 

378 

335 

312

Seoondfoot-days

109.7 

150.4 

735.6

18,906.6

69,623 

157,139 

75,262 

28,204 

5,795 

2,063 

461.0 

281.6 

302.5

340,126.8

May

293 

274 

266 

298 

346

300 

262 

244 

232 

217

208 

200 

193 

183 

170

164 

160 

152 

143 

137

132 

128 

126 

122 

120

115 

108 

.106 

101 

122 

173

Mqx^TTnm

5.5 

6 

197

1,140

13,400 

54,500 

26,100 

4,230 

346 

157 

27 

11 

12

54,500

June

157 

136 

126 

117 

107

100 

94 

a90 

a85 

a78

a72 

a70 

a66 

a62

a60

a58 

a57 

a56 

a54 

52

47 

46 

43 

39 

36

34 

33 

30 

30 

28

July

27 

26 

24 

24 

26

23 

22 

21 

19 

17

16 

14 

13 

12 

14

12 

12 

10 

9 

10

11 

11 

11 

9 

9.5

10 

10 

9.5 

11 

10 

8

Minimum

1.8 

3.1 

3.8

.3

62 

480 

338 

312 

101 

28 

8 

4.6 

5.5

1.8

Aug.

8 

8 

7.5 

7 

7

6.5 

6 

5.5 

4.6 

6

6.5 

7 

10 

10 

11

11 

11 

11 

11 

10

10 

10 

11 

11 

11

11 

11 

11 

10 

10

11

Mean

3.54 

5.01 

23.7

51.8

2,246 

5,419 

2,428 

940 

187 

68.8 

14.9 

9.08 

10.1

929

Sept.

11 

10 

10 

11 

11

12 

12 

11 

10 

10

11 

11 

11 

11 

10

11 

11 

11 

10 

10 

10 

10 

10

11 11

10 

8 

6 

6 

5.5

Rim-off in 

acre-feet

218 

298 

1,460

37,500

138,100 

311,700 

149,300 

55,940 

11,490 

4,090 

914 

559 

600

674,700

Peak discharge.- Jan. 8 (5 p.m.) 15,800 sec.-ft.; Jan. 26 (1:30 p.m.) 15,900 sec.-ft. ; Feb. 14 

(6 a.m.) 11,800 sec.-ft.; Feb. 17 (4 p.m.) 10,700 sec.-ft.; Feb. 27 (6 a.m.) 70,500 sec.-ft.; Mar. 

30 (11:30 a.m.) 32,400 sec.-ft.

a Bo gage-height record; discharge computed on basis of records for station near Guenoc.

400454 O - 41 - 22
330 NAPA RIVER BASIN

Napa River near St. Helena, Calif.

Location.- VJater-stage recorder, lat. 38°29'40", long. 122°25'50", In SE£ sec. 32, T. 8 

N., R. 5 W., a quarter of a mile upstream from highway bridge, 1.3 miles northeast of 

ZInfandel, and 2.5 miles east of St. Helena.

Drainage area.- 83.5 square miles.

Records available.- November 1929 to September 1932, November 1939 to September 1940.

Extremes.- Maximum discharge during period November 1939 to September 1940, 11,700 secondfeet Feb. 27 (gage height, 14.5 feet); practically no flow part of July 23.

1929-32, 1939-40: Maximum discharge, that of Feb. 27, 1940; minimum, that of July 

23, 1940.

Peak discharge for Feb. 27, 1940, probably exceeded any discharge during the period 

of no record 1933-38.

Remarks.- Records good. Small diversions above station for Irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

8 

3 

4 

5

6 

7

a

9 

10

11 

18 

13 

14 

16

16 

17 

18 

19 

80

Si 

88 

83 

84 

85

86 

27 

88 

89 

SO 

31

Oct. Hov.

0.1

.1

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Dec.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3 

.7

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3 

.3

Jan.

139 

530 

172 

484 

109

79 

313 

1,490 

868 

531

475 

309 

162 

108 

79

65 

55 

48 

42 

38

35 

33 

57 

33 

738

1,410 

435 

219 

170 

134 

146

Peb.

128 

112 

33S 

291 

227

242 

205 

154 

123 

106

92 

79 

572 

1,270 

387

253 

1,200 

504 

313 

222

177 

148 

127 

116 

170

2,200 

8,520 

4,810 

1,960

Month

Dot 

HOT

Dec

C

Jan 

Fob 

Mar 

Apr 

May 

Jim 

Jul 

Aug 

Sep

T

ember 19

alendar year

he perlo

Mar.

845 

546 

394 

276 

210

175 

150 

129 

113 

104

112 

S6 

76 

71 

68

68 

61 

57 

51 

48

48 

45 

42 

41 

41

767 

685 

S86 

1,990 

5,520 

1,840

Apr.

744 

500 

383 

286 

229

190 

180 

172 

168 

122

109 

97 

86 

82 

76

68 

62 

57 

52 

48

46 

44 

42 

39 

55

71 

52 

40 

38 

34

Seoondfoot-days

2.2 

7.3

-

9,506 

25,046 

15,045 

4,172 

709 

346.0 

147.3 

79.5 

37.5

-

May

31 

31 

30 

48 

36

31 

29 

27 

25 

24

23 

22 

22 

21 

20

21 

20 

20 

19 

19

19 

18 

18 

17 

16

15 

14 

15 

16 

22 

20

Mflir^ nniTq

0.2 

.7

-

1,490 

8,520 

5,520 

744 

48 

20 

7.5 

4.0 

1.4

-

June

20 

18 

17 

16 

15

15 

14 

14 

14 

13

13 

13 

12 

11 

12

11 

11 

11 

9.5 

9.5

8.5 

8.5 

8.5 

8 

8

7.5 

7 

6.5 

6.5 

S

July

7 

7 

7 

7.5 

6.5

6.5 

7 

6 

5 

5.5

4.9 

4.6 

4.6 

4.9 

4.3

4.9 

4.6 

3.2 

4.1 

5.5

4.0 

3.2 

2.6 

3.5 

4.0

3.5 

4.3 

2,6 

3.2 

2.8 

3.0

Minimum

0.1 

.2

-

33 

79 

41 

34 

14 

6.5 

2.6 

1.6 

1.0

-

Aug.

4.0 

3.1 

3.4 

3.7 

4.0

3.5 

2.5 

2.0 

2.0 

2.0

2.5 

3.1 

3.1 

3.4 

3.4

3.4 

3.4 

2.8 

2.5 

2.2

2.0 

2.0 

1.9 

1.8 

1.8

1.8 

1.8 

1.6 

1.6 

1.6 

1.6

Mean

0.18 

.24

-

307 

864 

485 

139 

22.9 

11.5 

4.75 

2.56 

1.25

-

Sept.

1.4 

1.4 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

.3 

.2 

.2

.2 

.2 

.2 

1.2 

1.2

1.3 

1.2 

1.0 

1.0 

1.0

Run-off in 

acre-feet

4-4 

14

-

18,850 

49,680 

29,840 

8,280 

1,410 

686 

292 

158 

74

109,300

Peak discharge.--Feb. 27 (6 a.m.) 11,700 sec.-ft.j Mar. 30 (8 a.m.) 7,070 sec.-ft.

9-838 February 1936

TOUTED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
NAPA RIVER BASIN 

Conn Creek near St. Helena, Calif.

331

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 topographic 

map).

Drainage area.- 52.0 square miles.

Records available.- November 1929 to September 1940.

Average discharge.- 10 years (1930-40) 27. 5 second-feet.

Extremes.- Haxlmum discharge during year, 7,700 second-feet Feb. 27 (gage height, 11.80 

feet), from rating curve extended above 6,000 second-feet; no flow for several months.

1930-40: Maximum discharge, that of Feb. 27, 1940; no flow for several months In 

each year.

Remarks.- Records good. Small diversions above station for Irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

8 

Z 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

80

81 

88 

83 

84 

85

86 

27 

28 

29 

30 

31

Oct. HOT. 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 

0 

0 

.4 

.8

Jan.

20 

156 

36 

132 

27

20 

130 

620 

231 

164

168 

106 

59 

40 

29

23 

19 

16 

14 

12

11 

11 

11 

10 

298

435

144 

83 

58 

45 

44

Feb.

37 

31 

128 

96 

76

75 

61 

50 

43 

37

33 

30 

150 

276

115

84 

293

150 

103 

80

67 

57 

48 

43 

61

985 

3,400 

2,060 

956

Month

Oot 

HOT 

Dec

C

Jan 

Fob 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

V

uary

ust. ...................................

afcer year 1939-4

Peak discharge. -

p.m.) 808 sec.-rt.; 

4,100 sec. -ft. 

a No gage-height

0..... .................

Mar.

396 

250 

169 

146 

118

94 

79 

71 

63 

56

50 

46 

42 

39 

37

37 

34 

30 

29 

27

25 

24 

23 

22 

22

154 

118 

94 

1,050 

2,820 

902

Apr.

432 

266 

207 

158 

128

113 

101 

92 

80 

70

61 

55 

51 

46 

43

40 

36 

34 

32 

30

28 

26 

25 

25 

34

32 

26 

24 

22 

20

Secondfoot-days

0 

0 

1.2

618.8

3,172 

9,625 

7,089 

2,337 

350.0 

112.3 

9.2 

0 

0

22,695.7

Jan. 8 (6 a.m.) 1,580 sec. -ft.; Jan. 

Feb. 17 (7 a.m.) 808 sec. -ft.; Feb.

record; discharge Interpolated.

May

19 

18 

18 

24 

17

16 

14 

13 

12 

12

11 

11 

10 

9.5 

8.5

9.5 

9.5 

8.5 

8 

8

8.5 

8.5 

8.5 

8.5 

8.5

8

7.5 

6.5 

7.5 

12 

9.5

Maximum

0 

0 

.8

82

620 

3,400 

2,820 

432 

24

1^4 

0 

0

3,400

25 (5 p.m. 

27 (3 a.m.

June

7.5 

6.5 

6 

5.5 

5

a5 

a5 

a4.5 

a4.5 

a4.5

a4.0 

a4.0 

3.8 

a3.6 

a3.5

a3.4 

a3.3 

a3.2 

a3.1 

a3.0

a2.9 

a2.8 

a2.7 

a2.6 

2.5

2.3

2.1 

1.9 

1.8 

1.8

July

1.4 

1.2 

.8 

.8 

.7

.5 

.5 

.5 

.5 

.4

.4 

.2 

.1 

.1 

.1

.3

.3 

.2 

.1

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug. Sept.

Minimum Mean *££%£

00 0 

00 0 

0 .04 2.4

0 1.70 1,230

10 102 6,290 

30 332 19,09O 

22 229 14,060 

20 77.9 4,640 

6.5 11.3 694 

1.8 3.74 223 

00 

0 .30 18 

00 

0 

0

0 62.0 45,020

835 sec. -ft.; Feb. 13 (9:30 

7,700 sec. -ft.; Mar. 30 (7 a.m.
332 RUSSIAN RIVER BASIN

Russian River near Hopland, Calif.

Location.- Wire-weight gage, lat. 39°01'35", long. 123°07'45", in Ranclio De Sanel grant, 

at highway bridge, a quarter of a mile downstream from McNab Creek, 4 miles north of 

Hopland, and about 17 miles upstream from Sulphur Creek. Datum of gage is 497.43 

feet above mean sea level (general adjustment of 1929).

Drainage area.- 345 square miles.

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge during period, 34,100 second-feet Feb. 28 (gage height, 24.9 

feet)., from rating curve extended above 30,000 second-feet; minimum, 28 second-feet 

Dec. 4.

Flood of December 1937 reached a stage of about 30.0 feet from floodmarks.

Remarks.- Records good. Gage usually read twice daily. Flow affected by diversion from 

uei Kiver through Potter Valley power plant into East Fork of Russian River (see p. 34]). 

Small diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

S3.

22

S3

84

85

86

87

28

29

30

31

Oct. HOT. Dec.

138

126

57

34

101

118

91

88

112

235

311

184

149

146

202

202

208

196

196

196

190

190

196

196

187

190

193

199

304

411

1,140

Jan.

2,080

2,460

1,350

2,180

1,160

870

964

3,950

3,800

4,830

2,460

1,420

990

734

606

510

458

425

386

351

348

338

338

345

2,110

4,550

1,880

1,340

950

810

1,330

Feb.

1,02O

870

1,500

2,730

2,100

2,370

2,360

1,460

1,160

985

860

765

2,280

5,720

2,520

1,770

7,270

3,480

2,140

1,630

1,340

1,130

972

891

846

3,760

18,800

25,500

9,220

-

Month

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

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

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

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

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

The period..............................

Mar.

4,140

2,870

2,160

1,670

1,420

1,200

1,080

980

845

770

688

652

605

590

570

540

522

491

480

478

465

454

452

452

450

2,450

3,700

2,870

5,890

9,320

5,740

Apr.

2,860

2,090

1,750

1,500

1,360

1,130

1,160

980

856

790

722

682

626

593

576

560

525

498

468

456

442

420

410

399

410

410

374

371

361

351

-

Seoondfoot-days

6,486

.

46,323

107,449

54,994

24,130

V 296

3J 385

4,030

3 573

4^473

-

May

340

334

323

417

368

340

320

296

306

293

244

187

184

248

254

254

241

203

160

148

184

222

222

216

190

114

104

175

175

130

104

Maximum

1,140

_

4,830

25,500

9,320

22,860

417

154

169

136

166

-

June

154

120

109

148

142

151

151

142

139

154

130

1-14

114

120

87

67

54

109

104

104

104

107

109

63

61

a70

82

104

142

130

-

July

148

151

160

157

163

166

169

166

136

120

120

122

133

125

120

109

114

114

117

120

125

1J4

109

125

122

120

122

120

114

117

112

Minimum

_

34

-

338

765

450

351

104

54

109

92

127

-

Aug.

120

114

109

120

120

114

107

112

107

114

120

117

99

99

92

94

104

120

125

120

114

112

125

130

136

136

120

114

125

120

114

Mean

_

209

.

1,494

3,705

1,774

804

235

113

130

115

149

-

Sept.

148

145

142

142

145

148

154

160

151

142

130

130

136

136

139

142

127

166

160

160

157

160

160

160

160

157

154

154

154

154

-

Run-off in 

acre-feet

_

12,860

-

91,880

213,100

109,100

47,860

14,470

6,710

7,990

7,090

8,870

f'19,900

a No gage-height record; discharge interpolated.

9-838 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Surrey
RUSSIAN RIVER BASIN 333

Russian River near Healdsburg, Calif.

Location.- Water-stage recorder, lat. 38°36'45", long. 122°50'05", in SEi sec. 22, T. 9 

N., K. 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 (general adjustment of 1929).

Drainage area.- 766 square miles.

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge during period, 67,000 second-feet Feb. 28 (gage height, 30.0 

feet); minimum, 74 second-feet June 30 and Aug. 18.

Flood of December 1937 reached a stage of 30.8 feet, from floodmarks.

Remarks.- Records excellent except those for period of backwater, which are fair. Flow 

airected by diversion from Eel River through Potter Valley power plant itito East Fork 

of Russian River (see p. 341). Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1959 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Hov. Dec.

_

_

_

_

-

101

107

114

127

1,260

2,580

855

546

407

341

320

30S

301

2S9

278

267

260

260

260

260

256

253

250

267

372

801

Jan.

5,790

12,500

5,740

7,620

4,090

3,130

3,130

11,300

12,400

9,520

S,990

5,000

3,340

2,540

2,020

1,690

1,440

1,250

1,140

1,010

938

860

S24

7S8

2,990

10,800

7,070

3,740

2,750

2,830

3,700

Teb.

3,360

2,530

4,570

5,120

4,690

4,370

4,520

3,460

2,770

2,330

2,020

1,600

3,900

11,000

7,540

4,450

12,700

12,100

6,240

4,520

3,500

2,920

2,490

2,210

2,550

9,340

43,800

62,200

33,900

_

-

Month

December 6-31 .............................

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

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

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

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

The period...... ........................

Mar.

13,900

7,830

5,620

4,460

3,710

3,220

2,830

2,490

2,240

2,010

1,S40

1,670

1,520

1,420

1,340

1,290

1,220

1,160

1,030

1,030

989

945

901

874

S57

2,370

7,330

5,570

9,030

23,800

13,000

Apr.

9,030

5,690

4,450

3,650

3,120

2,650

2,460

2,380

2,100

1,380

1,700

1,570

1,470

1,370

1,270

1,200

1,130

1,040

979

916

867

839

790

766

790

S67

772

702

670

636

-

Secondfoot-days

11,440

-

140,330

266,950

132,546

57,754

14,001

5,958

4,633

3,352

5,211

-

May

615

605

605

736

797

630

615

570

552

533

515

4S4

426

387

406

414

414

402

333

342

320

331

346

346

338

328

292

26S

274

331

346

MaTrimim

_

2,580

-

12,500

62,200

23,800

9,030

797

302

196

130

203

-

June

302

299

278

254

257

257

251

248

245

240

840

235

232

219

209

212

200

196

ISO

154

154

145

124

133

142

127

110

105

113

97

-

July

133

154

163

165

166

172

178

187

196

187

172

154

148

142

151

169

157

14S

145

142

139

136

136

133

122

122

119

119

125

130

122

Minimum

_

101

-

78S

1,800

357

636

26 3

97

1 -L-Ly 1 Q 

81

108

-

Aug.

116

116

116

119

116

122

127

122

113

105

105

102

105

99

99

S9

81

81

86

99

102

99

99

102

110

119

130

130

122

113

108

Mean

_

440

-

4,527

9,205

4,276

1,925

452

199

149

108

174

-

Sept.

108

119

133

142

142

142

151

160

169

17S

178

17S

1S1

1S1

1S4

190

195

203

184

184

1S1

193

196

196

196

193

193

187

187

187

-

Run-off in 

acre-feet

_

22,690

-

273,300

529,500

262,900

114,600

27,770

111,820

9,190

6,650

10,340

1,274,000

Peak discharge.- Jan. 8 (3:30 p.m.) 15,700 sec.-ft.; Feb. 28 (12 m.) 67,000 sec.-ft.; Mar. 30 

(8:3O a.m.) 267400 sec.-ft.

Note.- Backwater from dam at Healdsburg, June 9 to Sept. 30j discharge computed on basis of nine 

discharge measurements, record of gage heights and changes at dam.

9-252 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
334 RUSSIAN RIVER BASIN

Russian River at Guerneville, Calif.

Location.- Wire-weight gage, lat. 38 030'03n , long. 122°59'36", In NWi sec. 32, T. 8 N., 

R. 10 W., at highway bridge In Guernervllle, 6s miles upstream from Austin Creek. Datum 

of gage Is 8.66 feet above mean sea level (general adjustment of 1929).

Drainage area.- 1,330 square miles.

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge observed during period, 88,400 second-feet Feb. 28 (gage 

height, 46.87 feet); minimum observed, 88 second-feet, Aug. 19-20.

Flood of December 1937 reached a stage of 42.5 feet, from floodmarks.

Remarks.- Records good except those for period of backwater, which are fair. Gage read 

twice dally. Flow affected by diversion from Eel River through Potter Valley power 

plant Into East Fork of Russian River (see p. 341). Small diversions above station 

for irrigation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16

17is

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

Ill 

132 

127 

137 

134

111 

109 

125 

127 

200

2,610 

1,380 

786 

554 

434

381 

350 

344 

327 

314

304 

285 

285 

279 

276

272 

269 

272 

282 

350 

516

Jan.

3,510 

14,900 

9,650 

12,100 

8,370

5,890 

5,100 

14,800 

22,200 

15,700

14,900 

9,380 

6,450 

4,630 

3,550

2,910 

2,370 

2,070 

1,850 

1,590

1,440 

1,310 

1,220 

1,150 

5,920

20,300 

16,000 

3,060 

5,420 

4,110 

5,850

Feb.

7,470 

4,340 

7,150 

9,660 

8,130

6,720 

6,830 

5,620 

4,490 

3,770

3,210 

2,750 

3,520 

15,900 

13,900

8,210 

17,200 

21,000 

11,600 

7,530

5,690 

4,630 

3,880 

3,310 

3,510

8,120 

53,000 

81,300 

79,900

Month

Dot 

HOT 

Dec

C

Jan 

Feb 

Mar 

Apr 

Hay 

Jim 

Jul 

Aug 

8ep

T

alendar year

11.....................................

ust........ .... . .

he perio

liar.

44,900 

19,100 

11,100 

8,100 

6,320

5,180 

4,380 

3,800 

3,430 

3,060

2,790 

2,540 

2,320 

2,140 

1,990

1,900 

1,310 

1,650 

1,550 

1,450

1,330 

1,310 

1,230 

1,180 

1,140

2,050 

9,360 

3,340 

11,000 

33,500 

38,100

Apr.

20,300 

10,900 

7,990 

6,420 

5,300

4,460 

4,020 

3,960 

3,420 

3,010

2,720 

2,470 

2,280 

2,030 

1,930

1,310 

1,690 

1,590 

1,490 

1,390

1,320 

1,260 

1,220 

1,150 

1,160

1,300 

1,200 

1,100 

1,030 

974

Secondfoot-days

12,183

_

233,700 

412,840 

238,100 

100,944 

19,250 

6,873 

4,397 

3,198 

4,844

-

May

930 

388 

S66 

938 

1,110

974 

375 

806 

766 

726

694 

670 

617 

562 

549

549 

549 

535 

515 

492

473 

43S 

444 

463 

438

441 

408 

372 

372 

390 

400

Maximum

2,610

22,200 

81,300 

44,900 

20,300 

1,110 

380 

185 

120 

195

-

June

330 

360 

340 

320 

300

290 

280 

275 

270 

260

255 

250 

245 

242 

235

230 

220 

210 

200 

190

170 

160 

155 

150 

155

155 

156 

150 

140 

130

July

120 

130 

140 

160 

170

180 

185 

185 

180 

180

170 

153 

140 

142 

140

142 

133 

138 

136 

120

136 

132 

128 

126 

124

113 

120 

116 

113 

115 

120

^p^imim

109

_

1,150 

2,750 

1,140 

974 

372 

130 

113 

88 

109

-

Aug.

115 

115 

115 

115 

110

102 

95 

102 

103

95

93 

93 

95 

98 

96

98 

95 

98 

SB 

88

90 

95 

100 

105 

110

110 

115 

115 

120 

120 

109

Mean

393

.

7,539 

14,240 

7,681 

3,365 

621 

229 

142 

103 

161

-

Sept.

Ill 

109 

109 

114 

124

144 

144 

150 

152 

154

158 

160 

160 

164 

162

166 

176 

195 

191 

186

184 

188 

193 

134 

184

184 

178 

176 

172 

172

Run-off in 

acre-feet

24,160

_

463,500 

818,900 

472,300 

200,200 

38,180 

13,630 

8,720 

6,340 

9,610

2,056,000

Note.- Backwater from temporary dam, Hay 30 to Sept. 30; discharge computed on basis of eight 

discharge measurements and records for station near Healdaburg.

X-232 February 1936

UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
RUSSIAN RIVER BASIN 

Dry Creek near Healdsburg, Calif.

335

Location.- Wire-weight gage, lat. 38°43'15", long. 122°59'50", near northwest corner of 

Tzabaco Rancho grant, at highway bridge, i mile downstream from Warn 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.

Drainage area.- 148 square miles.

Records available.- October 1939 to September 1940.

Extremes.- Maximum discharge during year, 22,500 second-feet Feb. 28 (gage height, 16.9 

feet); no flow Oct. 1 to Dec. 8.

Remarks.- Records good, except those for short periods of high flow during February and 

low flow during the summer, which are fair. Gage read twice daily. No storage or 

diversions.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

9.

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

SO

SI

22

123

24

125

26

27

128

30

Oct. HOT. Dec.

0 ' 0

0

0

0

0

0

0

15

6S4

259

71

48

32

22

18

24

21

18

16

13

15

16

13

13

12

13

101

101

610

Jan.

2,560

1,410

1,060

2,070

714

596

810

4,040

2,110

1,750

1,320

305

518

376

310

245

207

1S1

153

136

125

102

112

103

2,050

3,070

1,230

734

534

431

1,220

Feb.

753

898

1,640

1,180

938

1,030

734

607

498

390

330

270

1,180

1,480

930

668

3,570

1,550

1,040

755

551

463

364

310

419

3,230

12,100

13,400

3,970

-

Month

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

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

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

Water year 1939-4 0......................

Mar.

2,010

1,320

1,000

910

605

478

416

366

319

296

25S

222

196

178

170

183

160

146

141

132

127

122

108

112

108

1,370

1,140

959

2,950

4,420

2,590

Apr.

1,440

944

788

598

498

416

306

276

248

235

196

190

179

168

158

144

140

120

122

110

110

137

118

102

96

92

38

-

Seoondfoot-days

0

0

2,148

_

31,082

9,157

619

30.1

123,744.8

Hay

S5

83

32

133

96

82

75

71

67

64

62

60

55

53

52

48

47

46

41

40

39

39

39

39

36

33

32

33

32

73

53

^ffiTflllPVB

0

0

684

.

4,040

13,400

4,420

1,440

47

1.3

1.2

13,400

June

47

44

40

37

35

33

31

29

26

23

23

20

18

18

16

14

15

15

15

16

14

13

11

12

11

10

9

8

8

8

-

July

7.5

7.5

7.5

5.5

3.9

3.9

3.6

4.7

4.7

4.2

4.2

4.2

3.9

3.6

2.8

4.2

4.2

5.5

4.2

3.9

4.2

3.3

2.8

2.2

1.9

1.9

1.3

1.3

1.3

1.3

Minimum

0

0

0

_

108

270

108

88

8

1.3

.9

.8

0

Aug.

1.3

1.3

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.1

1.1

1.1

1.2

Mean

0

0

69.3

_

1,003

1,905

758

305

57.9 

20.6

3.83

1.13

1.00

338

Sept.

1.1

1.1

1.1

.9

.9

.9

.9

1.1

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

.9

.8

1.1

"

Run-off In 

acre-feet

0

0

4,260

-

61,650

109,600

46,640

18,160

1,230

236

69

60

245,500

9-232 February 1936

UHITED STATES DEPARTMENT OP THE IHTERIOR 

Qeologlcal Survey
336 RUSSIAN RIVER BASIN

Santa Rosa Creek at Santa Rosa, Calif.

Location.- Staff gage, lat. 38°26'05", long. 122°43'00", in Cabeza de Santa Rosa grant,

 SO feet downstream from A Street bridge in Santa Rosa. Datum of gage Is 137.95 feet 

above mean sea level (general adjustment of 1929).

Drainage area.- 53 square miles.

Records available.- December 1939 to September 1940.

Extremes.- Maximum discharge during period, 9,080 second-feet Feb. 27 (gage height, 19.2

 feet), from rating curve extended above 5,000 second-feet; no flow Dec. 1-7. 

Flood during 1937 reached a stage of about 14.6 feet, from floodmarks.

Remarks.- Staff gage read twice daily, with extra readings during periods of high water. 

Records fair.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

SI

Oct. Hov. Dec.

0 

0 

0 

0 

0

0 

0

.1

.5 

1.0

.3 

.2 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.4 

.2

.1

.1 

.1 

.3 

.2 

.1 

2.0

Jan.

32 

300 

170 

340 

60

70 

300 

1,060 

699 

370

359 

180 

95 

62 

47

36 

30 

25 

19 

16

14 

13 

15 

14 

559

515 

171 

94 

70 

60 

141

Pet.

66 

49 

358 

143

113

133 

102 

66 

52 

46

38 

34 

604 

572 

164

123 

960 

222 

138

104

83 

71 

58

50 

126

1,890 

4,830 

2,890 

948

Honth

Oct 

Hov

Dec

C

Jan 

Fet> 

Mar 

Apr 

Hay 

Jun 

Jul

* «

Sep

T

 lendar year

11.....................................

y.. ....................................

t ember..

he period. ...................... .. ,.

liar.

388 

251 

176 

132 

106

87 

72 

62 

54 

45

42 

36 

32 

30 

28

31 

26 

23 

21 

19

18 

17 

16 

18 

18

425 

254 

212 

1,850 

4,530 

955

Apr.

456 

254 

189 

139 

108

88 

88 

83 

66 

54

46 

41 

36 

33 

31

27 

26 

24 

22 

20

22 

20 

20 

18 

27

57 

26 

23 

20 

20

Seoondfoot-days

6.8

-

5,936 

15,033 

9,974 

2,084 

292.8 

67.9 

20.3 

7.7 

6.1

-

May

17 

17 

17 

26 

17

15 

13 

12 

11 

10

9 

9 

8.5 

8 

7

7 

6.5 

6.5 

6 

6

6 

5.5 

5.5 

5.5 

6

5 

5 

5 

4.3 

9.5 

7

Maximum

2.0

-

1,060 

4,830 

4,530 

456 

26 

5.5 

1.1 

.3 

.4

-

June

5.5 

4.8 

4.5 

3.8 

3.4

3.1 

2.6 

2.6 

2.6 

2.4

2.3 

2.2 

2.1 

2.1 

1.8

1.8 

1.8 

1.6 

1.6 

1.4

1.5 

1.6 

1.5 

1.5 

1.5

1.4 

1.4 

1.2 

1.2 

1.1

July

1.1 

.9 

.8 

.8 

.8

.8 

.9 

.8 

.8 

.7

.7 

.8 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.6 

.6 

.5 

.4 

.4

.4 

.4 

.3 

.4 

.4 

.4

Mlnliimm

0

-

13 

34 

16 

18 

4.3 

1.1 

.3 

.2 

.1

-

Aug.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.3

Mean

0.22

-

191 

518 

322 

69.5 

9.45 

2.26 

.65 

.25 

.20

-

Sept.

0.3 

-3 

.3 

.3

.3

.2 

.2 

.2 

.1

.1

.2 

.4 

.2 

.1 

.2

.2 

.2

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1

Run-off In 

acre-feet

13

-

11,770 

29,820 

19,780 

4,130 

581 

135 

40 

15 

12

66,300

ebruary 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
EEL RIVER BASIN 337

Lake Plllsbury at Hullville, Calif.

Location.- Staff gage, lat. 39°24', long. 122°57', on line between sees. 14 and 23, T. 18 

N., R. 10 W., at Scott Dam on Eel River, at Hullville, 0.3 mile downstream from Rice 

Fork. Datum of gage Is at mean sea level.

Drainage area.- 288 square miles.

Records available.- October 1922 to September 1940.

Extremes.- Maximum contents observed during year, 94,000 acre-feet June 3-6, 9 (elevation, 

1,910.1 feet); minimum observed, 14,500 acre-feet Dec. 8 (elevation, 1,857.9 feet).

1922-40: 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 dam; storage began In December

1921. Capacity, 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, shows contents 

available for release.

Cooperation.- Gage-height records furnished by Pacific Gas & Electric Co., In connection 

with a Federal Power Commission project.

Contents, In acre-feet, water year October 1939 to September 1940

Da7

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

_

34,900

_

34,100

-

_

_

_

32,400

32,100

31,600

31,300

30,900

-

_

29,500

_

_

-

_

28,100

_

-

.

_

_

_

_

23,900

HOT.

23,800

23,600

23,500

-

-

22,500

_

21,700

21,500

21,100

_

_

19,900

19,700

19,300

18,800

_

_

18,100

17,800

17,400

17,200

17,000

16,800

16,800

16,600

16,400

_

-

Dec.

15,500

_

_

15,200

14,900

14,800

14,600

14,500

17,600

22,100

26,600

27,500

88,000

28,100

27,900

_

87,700

27,600

27,500

27,400

27,300

26,900

_

_

-

26,100

25,700

25,600

26,900

29 , 000

33,600

Jan.

41,600

51,100

59,000

66,600

70,300

72,400

73,500

76,300

76,900

76,900

75,700

74,700

74,300

73,900

73,500

73,100

73,100

73,100

72,900

72,900

78,700

72,700

72,900

72,900

75,700

77,200

77,600

75,100

74,100

73,500

74,100

Pet.

75,100

76,300

79,300

83,600

82,50O

84,000

83,600

_

83,100

83,600

83,800

84,200

85,800

86,600

85,800

86 , 400

87,500

86,200

86,200

87,100

87,300

86,20.0

86 , 400

_

-

88,700

89,600

88,400

81,400

.

-

Mar.

78,200

78,000

78,400

79 , 300

79,700

80,100

82,200

84,000

84,600

85,100

85,500

86,200

87,100

88,000

88,700

89,300

89,800

90,300

90,000

89,800

39,600

89,600

-

_

89,300

89,100

79,300

78,800

81,800

81,400

79,300

Apr.

78,000

78,60O

78,800

80,700

81,800

84,000

86,000

87,800

89,100

90,300

91,400

92,600

92.600

98,800

93,000

93,000

93,000

93,300

93,300

93,500

93,300

93,300

92,600

91,900

91,400

91,400

91,600

91,900

92,100

92,100

-

May

92,30O

92,300

_

93,300

93,300

92,800

93,300

91,600

91,200

90,900

91,400

91,900

91,900

92,100

98,100

98,100

98,300

_

-

93,000

93,000

93,000

93 , 000

93,000

93,300

93,300

93,300

93,300

93,000

93,300

93,500

June

93,700

93,700

94,000

94,000

94,000

94,000

.

_

94,000

93,700

93,700

93,700

93,700

93,700

93,500

93,300

93,300

93,000

93,OOO

92,800

92,800

-

-

98,300

92,100

92,100

91,900

91,600

-

.

-

July

90,900

90.5OO

90,000

89,600

89,300

88,900

88,700

88,200

88,000

87,800

87,300

87,100

86,900

86,600

86,400

86,200

86,000

85,800

85,500

85,300

85,100

84,200

84,000

83,800

83,600

83,100

82,900

82,000

81,800

81,400

81,200

Aug.

81,000

80,500

80,300

79,900

79,500

79,000

78,600

78,400

78,200

77,800

77,400

76,700

76,500

76,100

75,700

75,300

74,900

75,900

75,700

75,700

75,600

75,300

73,700

73,300

72,900

72,900

72,900

72,700

72,400

71,600

71,200

Sept.

70,900

70,500

70,300

69,900

-

69,100

-

-

-

-

_

-

-

-

-

65,200

65,000

64,700

-

-

_

-

-

62,800

-

61,900

_

-

-

-

-

Monthly elevation and contents, water year October 1939 to September 1940

Date Elevation 

(feet)

1

-

1 909 3

1 909 9 '

Contents 

(acre-feet)

23 ' 900

-

92 100

Change In contents 

during month 

(acre-feet)

-24,300
338 EEL RIVER BASIN

Eel River at Hullville, 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 Hullville. Altitude of gage, about 1,800 feet (from topographic map).

Drainage area.- 289 square miles.

Records available.- November 1922 to September 1940.

Average discharge.- 17 years (1923-40), 428 second-feet.

Extremes.- Maximum discharge during year, 31,900 second-feet Feb. 28 (gage height, 20.5 

reet from floodmarks), from rating curve extended above 3,000 second-feet on basis of 

computed flow over Scott Dam; minimum, 31 second-feet Nov. 3.

1922-40: Maximum discharge, 38,000 second-feet on basis of computed flow over Scott 

Dam; practically no flow at times.

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

now regulated by Lake Pillsbury (see p.337). No diversion above station.

Cooperation.- Water-stage recorder graph and results of five discharge measurements furnished "by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, la second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

88

29

30

31

Oct.

182

1S4

185

166

184

184

182

182

180

180

180

180

182

182

182

182

184

185

184

184

184

184

185

187

185

185

185

184

184

184

182

HOT.

159

36

113

177

177

177

182

182

170

153

182

182

180

178

189

174

146

46

46

150

156

156

154

144

49

37

146

157

153

153

-

Dec.

114

40

37

133

126

102

79

96

62

62

54

47

90

158

170

169

164

160

161

164

169

177

172

170

170

170

172

126

68

67

66

Jan.

66

66

66

66

67

175

854

3,650

5,430

5,340

3,770

2,250

1,530

1,120

892

736

622

538

473

414

367

334

347

377

2,300

7,200

4,050

2,180

1,530

1,200

899

Feb.

488

268

353

3,960

3,530

3,010

3,170

2,080

1,410

1,010

728

750

1,760

3,860

2,080

1,410

4,640

2,870

1,550

1,100

1,47O

1,190

776

776

874

7,210

aS4,800

a24,600

all, 900

-

-

Month

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

Calendar year 1939 ......................

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

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

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

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

Water year 1939-4O. .....................

liar.

6,3OO

3,7SO

2,490

1,740

1,710

895

252

555

8OO

822

584

361

223

227

231

236

334

514

650

645

590

440

440

440

440

8,290

6,660

3,520

7,510

10,600

7,520

Apr.

3,610

1.86O

1,360

1.O3O

581

227

238

25O

227

212

216

433

590

590

581

568

424

396

472

468

468

540

762

750

630

370

223

216

216

231

-

Seoondfoot-days

5,663

4,304

3,717

72,943

48,909

113,623

69,799

18,739

7,117

3,497

4,916

4,760

5,660

290,704

May

297

245

245

335

558

62O

685

675

610

234

61

110

223

154

156

159

126

58

50

148

173

175

170

130

58

51

143

165

143

80

80

Mqyim^n]

187

189

177

2,330

7,200

24,800

10,600

3,610

685

185

187

208

214

24,800

June

SO

82

100

ioe

110

110

112

110

114

158

111

111

110

108

107

107

108

108

111

117

117

117

116

100

100

119

126

152

185

183

-

July

182

1S7

183

178

178

178

178

154

136

152

153

154

153

153

154

154

153

153

154

154

153

153

152

152

152

152

152

152

152

152

153

Minimum

166

36

37

36

66

268

223

212

50

SO

136

133

145

36

Aug.

148

152

154

152

152

148

146

144

156

164

159

154

150

147

141

139

133

134

164

156

148

141

139

159

152

146

143

176

170

185

208

Mean

183

143

120

200

1,578

3,918

2,252

625

230

117

159

154

189

794

Sept.

210

206

200

198

198

191

183

183

183

183

183

183

183

183

183

159

145

180

185

187

191

191

192

204

214

204

191

191

189

187

-

Run-off In 

acre-feet

11,230

8,540

7,370

144,700

97,010

225,400

138,400

37,170

14,120

6,940

9,750

9,440

11,230

576,600

a No gage-height record; discharge computed on basis of records at Scott and Van Arsdale Dams.

f -232 February 1936

 UNITED STATES DEPARTMENT OF THE INTERIOR 

Geological Survey
EEL RIVER BASIN 339

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

Location.- Water-stage recorder, lat. 39°23', long. 123°07', in NE$ sec. 30, T. 18 N., R. 

il W., 500 feet downstream from 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 1940. 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.- 17 years (1922-26, 1927-40), 288 second-feet.

Extremes.- Maximum discharge during year, 37,700 second-feet Feb. 28 (gage height, 26.6 

feet); minimum, 0.3 second-foot Oct. 16, 17, Dec. 21, 22.

1909-40: 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, that of Oct. 16, 17, Dec. 21, 22, 1939.

Remarks.- Records good. 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 show flow passing dam down Eel River.

Cooperation.- Water-stage recorder graph and results of five discharge measurements furnlsnea by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

Z

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

81

22

S3

24

25

26

27

28

29

SO

SI

Oct.

4.2

2.8

2.2

3.7

2.7

4.2

3.2

2.2

1.2

.8

.7

.6

.6

.S

.5

.3

.5

1.3

1.6

1.6

2.4

1.8

1.2

1.3

2.0

1.4

1.6

1.4

1.2

1.1

3.6

HOT.

4.0

9.5

11

7

2.S

1.8

1.2

.8

.8

2.4

1.8

1.4

1.2

.8

1.2

2.S

1.6

5.5

7

8

7

6

7

5

5.5

5.5

4.4

7

6

5.5

-

Dec.

4.4

5

4.4

3.7

2.2

1.2

1.4

2.2

59

65

40

2.4

1.0

.8

.5

.6

.9

1.2

.5

.4

.3

.3

.4

.5

.5

.5

.5

1.2

49

46

323

Jan.

663

52S

248

344

143

69

598

3,960

6,270

6,270

4,130

2,480

1,520

1,020

724

548

436

362

297

245

221

198

158

213

2,840

6,190

4,140

2.2SO

1,540

1,080

834

Feb.

458

221

400

4,150

3,960

3,380

3,370

2,320

1,410

1,000

573

555

1,760

4,320

2,440

1,410

4,900

3,260

1,790

1,160

1,390

1,230

630

623

700

8,380

28,900

31,100

14,900

..

-

'Month

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

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

Julv. .............. .......

Water year 1939-40. ...... ...............

liar.

7,130

4,160

2,680

1,860

1,680

1,090

341

467

701

689

555

344

197

186

169

238

230

36S

473

464

441

299

312

2SS

301

7,920

7,730

3,680

8,430

13,400

9,190

Apr.

4,430

2,670

1,830

1,020

746

286

329

273

242

202

186

300

480

470

454

441

341

296

344

338

335

350

552

541

503

273

111

92

89

34

-

Secondfoot-days

54.9

131.5

619.0

25,737.9

52,569

330,690

76,033

18,653

3 f 286 7

199.2

111.1

116.9

124.1

282,593.4

May

162

113

107

209

3S9

407

470

457

432

162

185

58

4.6

12

6

10

6.5

4.6

4.3

5

7

9

6.5

5.5

10

18

12

2.4

3.9

3.4

5

Maximum

4.2

11

323

2,850

8,190

31,100

13,400

4,430

470

12

5

5

8.5

31,100

June

6

11

10

8

3

6.5

6

6.5

6

4.5

6.5

4.6

3.9

3.4

4.5

11

12

10

8

7

4.S

4.3

6

10

7

4.8

4.3

5

4.1

5.5

-

July

4.1

3.6

3.4

3.1

3.1

2.5

2.4

2.2

2.4

2.2

2.4

3.6

3.9

3.9

3.7

3.9

4.5

5

4.6

3.9

4.5

4.1

3.6

3*9

4^1

3.9

3.6

3.7

3.7

3.7

3.9

Minimum

0.3

.8

.3

.3

89

221

169

84

2.4

3.4

2.2

2.2

2.2

.3

Aug.

4.1

3.6

3.6

4.1

3.7

3.7

3.9

3.1

2.9

4.3

4.8

4.6

4.1

4.6

4.3

4.1

3.9

2.6

3.9

4.3

5

4.5

2.9

2.2

2.6

2.8

2.2

2.4

4.5

4.1

5

Mean

1.77

4.38

20.0

70.7

1,696

4,507

2,453

622

106

6.64

3.58

3.77

4.14

778

Sept.

7

8.5

7

7.5

6.5

5.5

4.5

4.1

3.7

3.2

3.1

2.9

2.9

2.6

2.6

2.4

2.5

2.5

2.2

2.6

2.6

2.9

3.6

3.2

4.3

5.5

5.5

4.5

4.3

3.9

-

Run-off in 

acre-feet

109

261

1,230

51,150

104,300

259,200

150,800

37,010

6,520

395

220

232

246

560,500

9-232 February 1936

UNITED STATES DEPARTMENT OP THE IHTERIOR 

Geological Survey
340

EEL RIVER BASIN

Eel River at Scotia, Calif.

Location.- Wire-weight gage, lat. 40°29', long. 124°06', In sec. 7, T. IN., R. IE., 

at Wlldwood Bridge, half a mile north of Scotia and 6 miles upstream from Van Duzen 

River. Datum of gage Is 36.21 feet above mean sea level.

Drainage area.- 3,070 square miles.

Records available.- December 1910 to February 1915, October 1916 to September 1940.

Average discharge.- 27 years (1911-14, 1916-40), 5,986 second-feet.

Extremes.- Maximum discharge during year, 305,000 second-feet Feb. 28 (gage height, 52.25 

reet, gage reading of crest); minimum discharge observed, 40 second-feet parts of 

Oct. 1, 2, and 3.

1910-15; 1916-40: Maximum discharge, that of Feb. 28, 1940; maximum stage observed, 55.5 feet Feb. 2, 1915; minimum discharge observed, 10 second-feet Aug. 12-14, 

1924.

Remarks.- Records good. Gage read twice dally, oftener during storm flows. Flow sllghtly regulated by Lake Plllsbury and diversions above station for power and Irrigation 

near Potter Valley In Russian River Basin.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

2627*

28

29

30

31

Oct.

42

42

42

46

51

46

51

51

51

51

46

51

51

51

56

66

66

66

66

90

84

90

90

93

S4

100

125

103

90

87

84

NOT.

77

74

71

6S

6S

71

71

77

71

71

74

74

74

77

77

SI

S4

77

S4

77

77

SI

77

SI

84

125

14S

140

133

133

-

Dec.

129

125

125

125

125

125

125

169

4,810

45,400

43,700

14,400

6,620

4,800

3,470

3,030

5,020

6,420

4,960

4,330

4,140

3,710

3,050

2,790

2,670

2,450

2,100

2,490

13,900

26,500

53,500

Jan.

62,100

71,200

54,700

58,700

42,600

29,100

20,200

23,200

58,600

67,900

51,900

32,900

22,100

16,600

13,100

10,500

8,930

7,680

6,610

5,940

5,210

4,710

4,490

4,510

7,760

46,500

39,200

22,800

17,100

14,000

12,500

Feb.

11,600

9,840

10,100

32,200

53, 900

41,600

42,100

29,500

22,300

17,700

15,300

12,500

21,300

59,600

39,900

27,200

48,300

58,600

33,400

24,500

18,700

16,200

14,700

12,200

13,100

20,400

147,000

261,000

170,000

_

-

Month

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

Calendar year 1939. .....................

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

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

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

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

Water year 1939-40......................

Mar.

76,000

49,800

34,800

25,400

20, 300

17,100

14,800

12,300

11,100

10,100

9,320

8,320

7,210

6,420

5,840

5,730

5,820

5,420

5,000

4,840

4,640

4,490

4,300

4,090

4,140

16,300

72,700

44,200

55,500

126,000

94,600

Apr.

54,000

33,500

24,600

21,800

17,900

15,100

13,700

14,200

11,800

10,400

9,200

8,490

7,790

7,330

6,970

6,420

5,960

5,480

5,020

4,790

4,580

4,260

4,110

4,030

4,010

4,030

3,770

3,280

2,980

2,790

Secondfoot -days

2,112

2,577

265,308

1,202,701

843,540

1,284,740

766,580

322,290

75,780

22,769

7,950

3,825

3,514

3,600,985

May

2,630

2,600

2,630

3,880

6,990

5,210

4,300

3,990

3,730

3,410

3,180

2,810

2,580

2,410

2,190

2,100

1,980

1,870

1,660

1,520

1,530

1,490

1,380

1,350

1,290

1,240

1,130

1,120

1,130

1,160

1,290

Ttffly^TniiTq

125

148

53,500

53,500

71,200

261,000

126,000

54,000

6,990

1,500

401

156

136

261,000

June

1,500

1,500

1,410

1,310

1,190

1,060

985

947

909

856

822

789

757

695

636

636

60S

580

552

531

517

496

510

496

447

427

420

394

401

388

-

July

401

369

345

339

339

321

309

291

286

280

286

291

280

268

251

240

234

234

218

213

218

213

213

202

202

202

202

184

184

170

165

Minimum

42

68

125

42

4,490

9,840

4,090

2,790

1,120

388

165

S3

91

42

Aug.

156

156

156

156

156

152

148

148

148

140

132

124

116

116

128

124

116

116

116

110

104

104

104

104

110

110

104

104

88

88

91

Mean

68.1

85.9

8,558

3,295

27,210

44,300

24,730

 10,740

2,445

759

256

123

117

9,839

Sept.

91

104

113

110

104

116

107

107

104

91

94

100

113

120

124

120

116

124

132

136

132

132

132

132

132

132

124

132

124

116

-

Run-off in 

acre-feet

4,190

5,110

526,200

2,386,000

1,673,000

2,548,000

1,520,000

639,300

150,300

45,160

15,770

7,590

6,970

7,142,000

Note.- Discharge, Dec. 1 to Mar. 31, computed from graph based on gage readings.

(-232 February 1936

UNITED STATES DEPARTMENT <JF THE INTERIOR 

Geological Survey
EEL RIVER BASIN 

Potter Valley powerhouse tailrace near Potter Valley, Calif.

341

Location.- Water-stage recorder and wooden control, lat. 39°21', long. 123°07', In NWi 

sec. 6, T. 17 N., R. 11 W., at powerhouse of Pacific Gas & Electric Co. and 3 miles 

northwest of town of Potter Valley. Altitude of gage, about 1,000 feet (from topographi c map).

Records available.- October 1922 to September 1940. 

Average discharge.- 18 years, 192 second-feet.

Extremes.- Maximum daily discharge during year, 210 second-feet Sept. 17; no flow Mar. 

 31, Hay 12 and 26.

1922-40: Maximum daily discharge, 321 second-feet Aug. 26, 1933; no flow at 

times in several years.

Remarks.- Records good. This water is diverted from Eel River above Van Arsdale dam; 

after passing through power plant, part or it is used for irrigation in Potter 

Valley and remainder flows into East Fork of Russian River. Water for irrigation 

diverted from tailrace just above gage is included in tables of discharge.

Cooperation.- Water-stage recorder graph and results of three discharge measurements 

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

a

3

4

5

6

7

8

.9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

204

199

196

166

203

206

204

202

200

200

19S

199

202

206

202

201

199

200

200

2C1

201

202

200

19S

197

201

205

205

206

202

152

HOT.

206

34

62

205

205

207

206

205

195

164

206

207

206

200

205

193

196

33

34

124

161

158

158

160

64

29

121

161

164

162

Dec.

157

33

25

120

158

98

96

74

184

198

155

97

100

184

£02

200

802

200

200

200

200

 200

201

203

800

197

198

198

199

200

200

Jan.

192

195

194

198

198

200

200

196

196

192

196

195

194

194

198

198

199

199

199

202

201

201

199

202

199

196

192

196

136

191

194

Feb.

194

192

197

195

192

188

188

189

189

194

194

194

194

176

190

190

190

191

191

162

191

192

192

192

197

190

172

94

117

-

Month

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

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

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

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

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

Water year 1939-^ 0......................

Mar.

186

1S6

1SS

186

IS 9

191

190

190

IS 6

191

163

192

189

188

188

127

185

165

186

188

183

185

164

186

177

172

183

188

186

160

0

Apr.

134

194

197

198

200

200

168

200

200

200

203

198

208

201

201

202

200

165

202

200

201

201

202

200

203

198

192

201

199

198

Secondfoot-days

6,157

4.631

5,079

62,994.5

6,042

5,327

5,438

5,866

4,487

3,415

4,698

4,334

( 5,492

60,966

May

196

194

195

196

196

198

197

197

198

200

45

0

141

193

189

190

188

48

28

134

185

194

197

154

17

0

131

185

149

32

120

IfmHimii^

206

207

203

218

202

197

192

208

200

195

204

175

210

210

June

44

46

122

122

134

127

132

130

91

141

12S

132

127

123

33

34

118

120

127

128

121

127

52

S3

117

130

124

145

195

162

-

July

198

189

194

204

198

193

189

170

142

140

152

144

145

141

134

135

137

138

137

138

139

135

136

138

137

133

132

134

133

131

132

Minimum

152

29

25

7

136

94

0

134

0

33

131

117

167

0

Aug.

135

133

130

132

135

134

134

139

144

142

144

136

130

117

140

131

141

140

140

141

140

134

149

148

144

145

144

140

140

157

175

Mean

199

154

164

173

195

184

175

196

145

114

152

140

183

167

Sept.

184

168

168

188

179

167

187

ISO

183

189

184

183

183

186

188

174

210

184

184

186

183

188

177

185

188

182

183

184

183

184

-

Run-off in 

acre-feet

12,210

9,190

10,070

124,900

11,980

10,570

10,790

11,640

S f 900

6,770

9,320

8,600

10,890

120,900

9-25E February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
342 EEL RIVER BASIN

South Fork of Eel River at Garberville, Calif.

Location.- Wire-weight gage (established by U. S. Weather Bureau), lat. 40°05'35", long. 

123"47'55", in NWi sec. 25, T. 4 S., R. 3 E., three-fourths of a mile southwest of 

Garberville and 5 miles downstream from Sast Branch.

Drainage area.- 452 square miles.

Records available.- August 1911 to September 1913, December 1939 to May 1940 (dlscontinuea).

Extremes.- Maximum discharge during period December 1939 to May 1940, 55,600 second-feet 

Feb. 28 (gage height, 19.4 feet); minimum discharge recorded, 22 second-feet Dec. 4.

1911-13, 1939-40: Maximum discharge recorded, that of Feb. 28, 1940; minimum recorded, that of Dec. 4, 1939.

The flood of December 1937 reached a stage of about 22 feet, gage datum, from 

floodmarks.

Remarks.- Records fair. Gage read twice dally, with extra readings during periods of 

high water. Flow regulated to some extent by Benbow power plant. Several small 

diversions.

Rating table period December 1939 to Hay 1940 (gage height, In feet, and discharge, 

In aecond-feet)

0.8 

1.0 

1.5 

2.0

27

41

87

147

2.5 

3.0 

3.5 

4.0

228

340

508

740

5.0 

6.0 

7.0 

8.0

1,360

2,200

3,340

4,880

9.0

10

11.0

12

6,820

9,180

12,100

15,600

20,000

30,000

41,000

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Hov. Dec.

32

28

28

28

28

31

35

143

11,900

10,900

6,850

2,480

1,450

940

650

645

2,110

1,580

1,120

1,050

834

645

603

557

450

400

346

1,600

6,640

10,200

18,200

Jan.

18,600

20,400

11,100

14,100

9,650

7,260

5,240

7,410

15,500

16,900

10,400

6,640

4,740

3,560

2,820

2,210

2,030

1,820

1,590

1,360

1,290

1,160

1,130

1,070

2,690

7,000

3,920

2,910

2,500

2,110

2,060

Feb.

1,750

1,570

2,560

8,950

8,320

8,370

7,480

5,330

4,220

3,620

2,740

2,420

8,590

11,900

7,700

5,780

11,200

99,100

6,230

5,010

3,950

3,080

2,710

2,290

2,720

9,180

35,900

40,800

25,500

_

-

Month

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

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

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

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

The perlod.... ..........................

Mar.

13,000

10,500

7,220

5,620

4,360

3,820

3,160

2,840

2,430

2,240

1,960

1,760

1,640

1,460

1,390

1,460

1,300

1,100

1,030

940

862

784

740

740

740

16,000

15,100

8,540

20,800

30,900

18,200

Apr.

10,100

6,600

5,660

4,740

4,160

3,480

3,560

3,260

2,840

2,510

2,220

1,980

1,770

1,570

1,510

1,380

1,260

1,120

1,050

982

940

817

800

751

730

736

603

557

576

532

Secondfoot-days

_

_

82,503

-

191,070

248,960

182,636

68,793

llf 738

.

-

May

504

566

532

1,460

1,350

910

768

631

585

562

516

476

450

436

400

330

202

147

250

338

325

_

_

_

-

_

-

_

.

..

-

MflTHnnim

_

_

18,200

-

20,400

40,800

30,900

10,100

1,460

I

-

June July

M^p JIB" 

_

_

28

-

1,070

1,570

740

532

147

I

-

Aug.

Mean

_

_

2,661

-

6,164

8,585

5,891

2,293

559

_

-

-

Sept.

Run-off in 

acre-feet

_

_

163,600

-

379,000

493,800

363,300

136,400

23,280

_

_

-

1,558,000

9-252 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
EEL RIVER BASIN 

Van Duzen River at Brldgevllle, Calif.

343

Location.- Wire-weight gage, lat. 40°28'05", long. 123°47 1 55 n , 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 (general adjustment of 1929).

Drainage area.- 200 square miles (revised).

Records available.- September 1911 to August 1913, December 1939 to September 1940.

Extremes.- Maximum discharge during period December 1939 to September 1940, 19,000 secondfeet Feb. 28 (gage height, 23.9 feet); minimum, 7.5 second-feet Aug. 29 to Sept. 2, 

Sept. 10.

The flood of December 1937 reached a stage of about 24.1 feet, from floodmarks.

Remarks.- Records good. Gage read twice dally, with extra readings during periods of high 

water. No large diversions.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

SO

21

22

S3

84

85

86

87

28

89

30

31

Oct. HOT. Dec.

10

10

10

10

11

11

11

96

4,360

6,920

2,920

965

593

477

352

60B

1,700

777

633

697

571

442

390

320

246

227

227

1,060

2,310

5,870

7,770

Jan.

S.OOO

6,950

4,020

4,520

3,120

2,150

1,690

2,770

7,420

6,150

3,340

2,230

1,550

1,180

S70

718

655

602

512

417

375

346

375

379

1,450

5,380

2,370

1,520

1,290

970

945

Feb.

782

695

1,660

3,700

3,190

4,860

3,630

2,430

2,030

1,600

1,260

1,000

2,950

3,560

2,350

1,920

7,220

3,560

2,160

1,670

1,320

1,230

1,000

1,040

1,970

5,740

13,300

14,800

8,850

-

Month

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

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

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

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

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

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

July.

The perlcx3. .............................

Mar.

4,670

3,820

2,510

1,850

1,460

1,180

940

930

825

718

664

584

512

476

436

668

541

444

383

353

310

284

266

297

290

5,840

5,320

3,270

9,080

10,900

5,720

Apr.

3,050

2,040

1,740

1,550

1,280

1,010

1,150

1,080

885

816

741

672

584

562

480

436

406

371

331

304

284

266

260

238

238

254

216

206

182

187

-

Seoondfoot-days

40,604

_

74,264

101,477

65,541

21,819

8,192 

1,830

515

271.0

344.5

-

May

187

196

199

1,300

875

624

484

413

360

317

263

249

222

211

201

187

177

163

151

143

136

127

121

118

114

110

106

104

97

110

127

Maximum

"

7,770

.

8,000

14,800

10,900

3,050

1,300 

132

26

11

25

-

June

132

132

114

101

93

89

82

78

72

68

64

61

58

55

54

50

50

45

44

44

42

42

39

37

34

32

31

30

29

28

-

July

26

26

24

22

20

20

19

19

19

19

18

17

16

16

15

15

15

15

14

14

14

14

14

14

14

13

14

13

12

12

12

Minimum

~

10

_

346

695

266

182

97 

28

12

7.5

7.5

-

Aug.

11

11

10

10

10

S.5

9.5

9

9

9

9

9

9.5

9.5

9

S.5

8.5

B.5

B

S

S

S

B

S

S

S

S

B

7.5

7.5

7.5

Mean

~

1,310

.

2,396

3,499

2,114

727

264 

61.0

16 .6

8. 74

ills

-

Sept.

7.5

7.5

9.5

11

11

10

10

8.5

B

7.5

B

B

9

11

10

10

16

25

17

14

12

11

10

10

10

10

14

IB

17

14

-

Run-off in 

acre-feet

_

BO, 540

-

147,300

201,300

130,000

43,280

16,250 

3,630

1,020

538

6 83

624,500

9-838 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Survey
344 KLAMATH RIVER BASIN

Smaller reservoirs In Klamath River Basin, Or'eg.

Founnlle Lake Reservoir.- Staff gage, lat. 42°27', long. 122°14', In NWi sec. 9, T. 36

 S., R. 5 E., at dam on Founnlle Creek, at outlet of Founnlle Lake, 15 miles northwest 

of Odessa. Gage readings are elevations above mean sea level (datum of Rogue River 

Valley Canal Co.). Records available, June 1923 to September 1930, June 1932 to 

September 1940. Maximum contents observed during year, 11,680 acre-feet May 16 (elevation, 5,998.1 feet); minimum contents, 648 acre-feet (estimated) Sept. 30. Maximum 

contents observed during periods 1923-30, 1932-40, 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 

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, May 16 to July 29, occasionally at other times.

Hyatt Prairie Reservoir.- Staff gage, lat. 42°10', long. 122°28', In sec. 16, T. 39 S.,

 R. S E., at dam of Talent Irrigation District on Keene Creek, 3 miles north of Ashland-Klamath 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 1940. Maximum contents observed during year, 9,371 acrefeet May 11, 13, 14 (elevation, 5,007.4 feet); minimum observed, 210 acre-feet Aug. 

31 (elevation, 4,986.0 feet). Maximum contents observed during period 1922-40, 

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. Figures given herein represent usable contents. Water 

used for Irrigation of lands near Ashland and Talent. Gage read one to three times 

from April to August, occasionally at other times.

Other small reservoirs.- There are six other small reservoirs In Wllllamson River Basin 

and eight in Lost River Basin, having a total capacity of 12,300 acre-feet.

Monthly elevation and contents, water year October 1939 to September 1940

Date

Calendar year 1939

Water year 1939-40

Pourraile Lake Reservoir

Elevation 

(feet)*

-_

-

5,993.0

5,996.1 

5,990.4

-

Contents 

(acrefeet)

5,956 

6,074 

6,085 

6,265

-

7,367 

7,826 

8,198 

10,710 

10,080 

6,085 

1,744 

967 

648

-

Change In 

contents 

during 

month 

(acrefeet)

+118 

+11 

+180

-3,669

+1,102 

+459 

+372 

+2,512 

-C30 

-3, 995 

-4,341 

-777 

-319

-5,308

Hyatt

Elevation 

(feet)*

[

-

5,006.4

4,996.2 

4,986.0

-

Contents 

( acrefeet)

1,294 

1,498 

1,514 

2,243

-

2,929 

4,431 

7,407 

9,125 

8,673 

6,193 

2,884 

210 

606

-

Change in 

contents 

during 

month 

(acrefeet)

+198 

+22 

+729

-7,857

+686 

+1,502 

+2,976 

+1,718 

-452 

-2,480 

-3,309 

-2,674 

+396

-688

*Hour of reading not known.

Hote.- Contents interpolated for days on which gage was not read.
KLAMATH RIVER BASIN

Willtamson 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 Sprague River and three-quarters of a mile 

southwest of Chiloquin. Datum of gage is 4,155.66 feet above mean sea level (general 

adjustment of 1929).

Drainage area.- 3,000 square miles.

Records available.- June 1917 to September 1940.

Average discharge.- 23 years, 837 second-feet.

Extremes.- Maximum discharge during year, 5,550 second-feet Apr. 3 (gage height, 6.14 

feet); minimum, 448 second-feet Aug. 14 (gage height, 2.16 feet).

1917-40: 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.

Rating tables, water year 1939-40 (gage height, In feet, and discharge, in second-feet).

Oct. 1 to Apr. 3 Apr. 4 to Sept. 30

2.4 545 4.2 2,400 2.1 425 4.0 2,170

2.7 750 4.6 2,930 2.4 560 4.5 2,850

3.0 1,010 5.0 3,600 2.8 860 5.0 3,610

3.4 1,410 5.5 4,420 3.3 1,360 5.8 4,940

3.8 1,870 6.1 5,480 3.6 1,695

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

SI

Oct.

599

569

551

557

569

563

557

557

551

551

557

557

581

569

557

593

605

605

581

569

563

569

545

545

612

612

599

593

587

626

605

Hov.

599

593

587

581

575

575

599

593

569

581

581

587

587

587

587

587

587

587

587

587

593

605

593

599

605

605

599

599

569

563

-

Dec.

599

593

587

587

587

587

593

675

675

675

705

705

705

705

698

690

705

675

661

661

661

661

661

661

668

661

647

605

605

661

668

Jan.

698

SO 6

911

1,060

1,220

1,390

1,500

1,500

1,280

1,030

965

1,000

1,060

al,100

992

766

a749

a735

720

668

633

626

619

581

593

640

668

705

742

790

814

Feb.

848

911

983

956

929

992

1,070

1,150

1,290

1,480

1,540

1,400

1,220

1,130

1,060

983

902

857

822

806

782

766

758

758

814

983

1,280

1,770

2,130

_

-

Month

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

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

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

Water year 1939-4 D. .....................

Mar.

3,230

4,500

4,450

3,700

2,940

2,460

2,160

1,990

1,810

1,670

1,590

1,550

1,520

1,440

1,360

1,290

1,240

1,200

1,190

1,130

1,090

1,070

1,060

1,050

1,060

1,140

1,290

1,410

1,600

2,000

2,770

Apr.

3,500

4,780

5,480

4,920

3,990

3,300

3,020

2,850

2,630

2,400

2,220

2,120

2,060

2,000

1,950

1,890

1,860

1,870

1,920

1,930

1,910

1,850

1,800

1,790

1,790

1,800

1,790

1,790

1,780

1,760

-

Secondfoot-days

17,854

17,646

20,227

233,170

27,561

31,370

57,960

74,750

35,571

16,683

16,031

15,376

15,922

346,851

May

1,700

1,640

1,570

1,540

1,490

1,450

1,420

1,420

1,420

1,410

1,360

1,330

1,250

1,200

1,140

1,100

1,080

1,080

1,060

1,020

995

955

926

842

797

788

770

754

698

683

683

llmHuitiHf

626

605

705

1,760

1,500

2,130

4,500

5,480

1,700

683

572

596

662

5,480

June

683

676

669

584

549

602

614

608

602

596

614

614

590

566

549

534

523

523

518

512

512

518

512

498

476

485

489

489

489

489

-

July

489

485

503

494

498

503

507

507

507

507

555

572

555

534

518

512

503

507

518

518

518

512

518

534

539

523

518

523

518

518

518

If^Tl^TglTm

545

563

587

415

581

758

1,050

1,760

683

476

485

452

452

452

Aug.

512

512

512

512

507

507

507

507

498

498

498

489

459

452

467

465

476

481

485

481

476

476

485

485

485

489

489

489

489

494

596

Mean

576

588

652

659

889

1,082

1,870

2,492

1,147

556

517

493

531

948

Sept.

572

539

498

463

458

455

465

476

498

512

507

507

512

518

566

627

662

596

566

560

560

560

555

555

528

481

507

534

544

549

~

Run-off in 

acre-feet

35,410

35,000

40,120

462,500

54,670

62,220

115,000

148,300

70,550

33,090

31,800

30,800

31,580

688,000

a No gage-height record; 

Chiloquin.

discharge interpolated on basis of records for Sprague River near

400454 O - 41 - 

9-252 February 1936

UNITED STATES DEPARTMENT OP THE INTERIOR 

Geological Surrey
346 KLAMATH RIVER BASIN

Upper Klamath Lake near Klamath Falls, Oreg.

Location.- Water-stage recorder, lat. 42°15', long. 121°48', 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 (general adjustment of 1929) or 4,100.00 feet (Bureau of Reclamation datum). All lake elevations 

given are referred to datum of Bureau of Reclamation.

Records available.- May 1904 to September 1940.

Extremes.- Maximum elevation during year, 4,143.31 feet Apr. 28; minimum, 4,135.97 feet 

Dec. 10. Maximum mean daily elevation, 4,143.16 feet May 12, 15: minimum mean daily, 

4,137.51 feet Oct. 4.

1904-40: 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 daily elevations not determined, occurred during 

periods when recorder was not in operation.

Remarks.- Reservoir is formed by concrete dam at 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 feet and 4,143.3 feet. Dead storage below elevation 4,135 feet not known; lake level ordinarily maintained between elevations 4,137 

feet (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 October 1939 to September 1940

Day

1

2

S

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26

2V

28

29

SO

31

Oct.

37.83

37.84

37.73

37.51

37.60

37.82

37. S2

37.72

37.71

37.72

37.74

37.73

37.71

37.73

37.70

37.69

37.75

37.74

37.75

37.76

37.78

37.77

37.79

38.04

37.77

37.53

37.68

37.80

37.82

37.82

37.83

HOT.

37.84

37.90

38.05

36.00

37.90

37. S9

37. 8S

38.00

37.96

37.89

37.90

37.91

37.84

37.92

37.95

37.93

37.93

37.95

37.95

37.95

37.95

37.94

37.96

37.96

37.69

37.98

38.09

38.01

37.98

37.92

-

Dee.

38.00

38.01

38.04

38.04

37.83

38.00

37.77

37.54

37.83

37.70

38.35

38.45

38.42

3S.40

38.41

38.36

38.66

38.66

38.69

38.69

38.73

38.72

38.75

38.80

38.80

38. SO

38.81

38.87

38.93

39.01

39.05

Jan.

39.01

39.22

39.20

39.35

39.45

39.54

39.44

39.58

39.58

39.72

39.85

40.00

39.84

39.88

39.91

39.93

39.94

39.96

39.97

39.99

40.00

40.00

40.01

40.03

40.03

40.00

40.10

40.19

40.22

40.23

40.29

Feb.

40.45

40.32

40.10

40.32

40.38

40.47

40.64

40.63

40.64

40.83

40.83

40.74

40.60

40.97

40.89

40.30

40,85

41.12

41.18

41.19

41.19

41.12

41.14

41.18

41.21

41.21

41.24

41.14

41.66

-

Mar.

41.60

41.92

42.01

42.13

42.22

42.24

42.25

42.46

42.49

42.42

42.44

42.40

42.40

42.41

42.21

42.60

42.68

42.65

42.64

42.65

42.67

42.70

42.68

42.65

42.60

42.57

42.69

42.66

42.62

42.83

42.88

Apr.

42.94

42.80

42.73

42.85

42.87

42. SI

42.74

42.79

42.89

42.80

42.79

42.77

42.82

42.98

43.08

42.76

42.69

42.72

42.83

42.77

42.88

42.94

42.84

42.78

42.83

43.06

42.98

42.99

42.96

42.88

-

May

42.74

42.95

42.74

42.89

43.11

43.15

43.06

43.08

43.00

43.08

43.12

43.16

43.10

43.14

43.16

43.10

43.04

43.01

42.96

42.94

42.92

42.88

42.85

42.85

42.89

42.87

42.77

42.63

42.45

42.12

42.32

June

42.50

42.55

42.62

42.65

42.55

42.53

42.49

42.37

42.33

42.28

42.21

42.20

42.19

42.21

42.13

42.06

42.00

42.00

42.06

41.90

41.91

41.80

41.71

41.66

41.69

41.64

41.64

41.48

41.31

41.37

-

July

41.37

41.35

41.36

41.27

41.24

41.24

41.13

41.07

40.99

40.91

40.81

40.86

40.84

40.77

40.71

40.66

40.59

40.52

40.53

40.40

40.47

40.37

40.37

40.39

40.29

40.25

40.21

40.17

40.06

40. OS

40.00

Aug.

39.99

39.97

39.97

39:94

39.85

39.76

39.67

39.63

39.60

39.55

39.51

39.51

39.57

39.49

39.42

39.33

39.30

39.12

38.95

39.01

39.00

39.03

39.01

38.94

38.84

38.75

38.75

38.72

38.67

38.57

38.58

Sept.

3S.49

3S.51

38.52

3S.48

38.56

38.50

3S.20

38.28

38.30

38.30

38.26

38.15

38.17

38.25

38.19

38.19

38.13

38.35

38.28

38.25

38.20

38.20

38.16

38.16

38.08

37.97

38.0V

38.25

38.14

38.15

-

Note.- Add 4,100 feet to obtain elevation above mean sea level, U. S. Bureau of Reclamation datum.

Monthly elevation and contents, water year October 1939 to September 1940

Date Elevation

(feet)

4,137.73 

4,137.88 

4,137.99 

4,139.07

-

4,140.27 

4,141.60 

4,142.80 

4,142.88 

4,142.43 

4,141.37 

4,140.01 

4,138.56 

4,138.16

-

Contents 

(acre -feet)

162,400 

171,500 

178,100 

243,800

-

324,100 

433,400 

538,500 

545,700 

505,600 

413,800 

304,800 

212,700 

188,400

-

Change In contents 

during month 

(acre-feet)

+9,100 

+6,600 

+65,700

-128,000

+80,300 

+109,300 

+105,100 

+7,200 

-40,100 

-91,800 

-109,000 

-92,100 

-24,300

+26,000

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.
KLAMATH RIVES BASIN 347

Link River at Klamath Falls, Oreg.

Location.- Water-stage recorder, lat. 42°13', long. 121°48', In sec. 32, T. 38 S., R. 9

 E., 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 (general adjustment of 1929) or 4,085.50 feet (Bureau of Reclamation datum).

Drainage area.- 3,812 square miles, Including Crater Lake Basin.

Records available.- May 1904 to September 1940.

Average discharge.- 36 years, 1,581 second-feet (Including Keno canal).

Extremes.- Maximum combined discharge of Link River and Keno canal during year, 6,260

 feet Mar. 31, Apr. 1; minimum, 17 second-feet Dec. 10; minimum dally, 27 second-feet 

Dec. 10.

1904-40: Maximum discharge, 9,400 second-feet May 12, 1904 (gage height at bridge. 

7.30 feet); minimum, 16 second-feet Dec. 155, 1937; minimum daily, 17 second-feet Dec. 

13, 1937.

Remarks.- Records good. Regulation since April 1919'in Upper Klamath Lake. Water di-

 verted 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.- oper Water-stage recorder inspected by employee of The California Oregon Power ~Co7

Discharge, In second-feet, water year October 1939 to September 1940

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.

643

1,320

1,200

1,160

896

733

731

876

1,130

1,020

1,020

1,020

682

S97

765

1,060

1,060

1,260

1,330

1,160

829

S31

1,150

1,360

1,350

1,260

724

479

558

S09

496

Nov.

990

1,000

939

727

509

964

976

1,040

1,330

1,340

1,020

707

1,080

1,120

1,160

1,140

1,070

895

1,090

1,160

1,250

1,250

991

907

675

1,080

1,300

1,110

983

1,100

-

Dec.

931

343

843

1,190

1,280

1,320

1,310

1,130

480

27

486

554

713

899

1,020

440

246

751

864

S64

771

2S2

335

697

954

1,130

957

708

532

432

72

Month

Calendar year 1939

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

April ................

May..................

July.................

Water year 1939-40

Jan.

31

L82

LS3

52

46

30

939

539

370

426

455

S13

S45

L7S

732

692

S89

S89

734

778

1,080

1,

1,

080

080

7S7

788

288

425

594

698

422

581

Feb.

538

392

149

L76

720

123

L94

L68

172

518

208

464

464

91

254

30

341

99

553

553

565

557

474

32

616

520

84

40

42

-

Mar40

38

39

41

42

389

1,

1,

382

100

390

1,390

1,400

1, 320

146

S98

546

535

L71

307

395

715

1,080

368

651

579

824

1,590

2,

2,

3.

4,

340

760

350

370

5,530

Apr.

5,900

4,500

5,320

5,580

5,350

4,820

4,690

4,960

5,040

4,990

4,510

3,820

3,360

3,350

2,330

2,100

2,120

1,730

1,400

1,130

1,900

1,420

91S

641

776

1,130

653

53

691

827

-

River Including Keno canal

Maximum

1,360

1,340

1,320

2,000

1,080

720

5,530

5,900

2,380

1,800

1,980

1,620

1,620

5,900

Minimum

479

509

27

27

30

30

38

53

617

662

556

1,070

768

27

Mean

959

1,032

744

1,063

523

322

1,194

2,917

1,336

1,437

1,430

1,392

1,327

1,226

Run-off 

acre-feet

58,970

61,390

45,740

769,700

32,130

18,520

73,440

173,600

32,130

88,490

91,000

85,590

73,980

890,000

May

617

1,120

942

991

2,250

2,330

2,160

1,820

1,110

816

S21

1,030

1,190

1,350

1,500

1,500

1,250

859

1,120

1,560

1,550

1,530

1,540

1,520

1,530

1,500

1.540

1,360

802

968

1,180

June

S40

662

1,200

1,450

1,450

1,450

1,450

1,440

1,300

1,620

1,790

1,790

1,300

1,760

1,630

1,660

1,660

1,670

1,680

1,670

1,670

1,540

1,230

1,630

1,630

1,560

1,430

1,420

1,420

1,110

-

July

1,430

1,500

1,630

1,570

1,410

556

1,160

1,740

1,760

1,760

1,810

1,970

1,980

1,840

1,740

1,700

1,470

1,400

1,190

991

1,400

1,400

1,400

1,400

1,390

1,380

1,380

1,380

1,380

1,380

1,380

Aug.

1,330

1,220

1,070

1,400

1,410

1,390

1,380

1,340

1,370

1,370

1,370

1,370

1,380

1,440

1,620

1,610

1,460

1,130

1.340

1,350

1,360

1,360

1,480

1,550

1,500

1,530

1,530

1,510

1,490

1,340

1,150

Sept.

1,150

1,200

1,310

1,150

1,150

1,210

1,310

1,520

1,630

1,540

1,540

1,520

1,420

1,140

1,160

1,440

1,540

1,420

1,330

1,320

1,330

1,320

1,320

1,340

1,410

1,530

1,320

768

1,220

1,260

-

Hlver Including Keno and "A" canals

Hun of f 

Maximum Minimum Mean in . 

acre -feet

1,490 479 976 60,000

1,340 509 1,030 61,390

1,320 27 744 45,740

2,630 27 1,374 995,200

1,080 30 523 32,180

720 30 322 13,520

5,530 3S 1,194 73,440

5,900 68 2,920 173,800

2,590 671 1,928 113,500

2,730 1,220 2,331 133,700

2,930 1,280 2,319 142,600

2,340 1,710 2,040 125,400

1,930 862 1,567 93,260

5,900 27 1,493 1,084,000
348

KLAMATH RIVER BASIN

Klamath River at Keno, Oreg.

Location.- Water-stage recorder, lat. 42°08', long. 121°58', In SEi sec. 35, T. 39 S., 

R77E., 2 miles west of Keno and 5 miles upstream from Spencer Creek.

Drainage area.- 3,920 square ml-les, not Including Lost River or Lower Klamath Lake 

Basins.

Records available.- June 1904 to December 1913, January 1930 to September 1940. 

Average discharge.- 19 years, 1,555 second-feet.

Extremes.- Maximum discharge during year, 6,540 second-feet Apr. 5 (gage height, 9.91 

feet); minimum, 115 second-feet Mar. 16 (gage height, 2.10 feet); minimum dally, 186 

second-feet June 2.

1904-13. 1930-40: 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, Oreg.) The following diversions, In acre-feet, through Klamath Strait Into 

Lower Klamath Lake In the year ending Sept. 30, 1940, were computed by Bureau of 

Reclamation from gate openings at Ady: October, 633; November, 381; December, 984; 

January, 56; February, 0; March, 452; April, 653; May, 1,930; June, 3,970; July, 260; 

August, 1,050; September, 906; the year, 11,275. Flow regulated by storage In Upper 

Klamath Lake since 1919 and In Lake Ewauna and Klamath River above Keno since September 1931.

Cooperation.- Water-stage recorder Inspected by employee of The California Oregon Power 

Co.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

a

9

10

11

18

13

14

IS

16

17

18

19

20

21

22

23

84

25

86

27

28

29

30

31

Oct.

601

1,400

1,390

1,370

1,120

875

825

950

1,280

1,140

1,150

1,150

756

889

999

1,200

1,190

1,500

1,590

1,310

962

962

1,220

1,450

1,490

1,440

936

705

627

964

592

HOT.

1,120

1,110

1,110

S45

579

605

605

1,190

1,450

1,530

1,210

785

1,180

1,400

1,290

1,300

1.1SO

956

1,190

1,300

1,440

1,420

1,150

1,030

731

1,150

1,530

1,2SO

1,060

1,170

-

Dec.

1,120

945

860

1,310

1,540

1,580

1,540

1,420

867

434

700

844

1,010

1,120

1,230

705

442

940

950

1,000

1,030

52S

406

86S

1,100

1,260

1,070

S55

695

650

344

Jan.

386

700

745

596

641

641

S04

1,070

SSO

880

962

1,100

1,440

746

1,060

1,170

962

834

923

1,100

1,320

1,370

1,220

1,110

1,070

606

551

S51

1,100

765

964

Feb.

695

494

604

403

922

690

478

660

473

968

756

948

1,070

636

584

448

44S

309

865

S51

S59

784

S52

2SO

666

870

650

1,150

1,S20

-

-

Month

Calendar year 1939 ......................

March. ....................................

April. ....................................

Hay.......................................

July. .....................................

Water year 1939-40.. ....................

Mar.

1,580

1,400

1,450

1,3SO

1,010

1,100

1,750

2,040

1,S20

1,820

1,750

1,360

677

999

1,160

1,180

1,190

S09

1,170

1,120

1,390

1,170

612

740

1,070

1,920

2,660

2,910

3,470

4,190

5,060

Apr.

5,660

5,920

6,070

6,340

6,490

6,300

5,900

5.7SO

5,770

5,300

5,690

5,180

4,660

4,190

3,620

2,79tl

2,940

2,750

2,340

2,890

2,610

616

1,050

1,020

951

1,400

S25

210

607

796

-

Secondfoot-days

34,033

33,396

29,360

376,540

26,567

21,233

52,157

107,165

33,691

32,693

39,352

40,397

44,322

497,366

May

827

S15

976

1,990

2,520

1,030

2,130

1,730

1,090

713

569

794

1,020

1,060

1,150

1,200

S65

373

772

1,390

1,340

1,260

1,210

1,150

1,110

1,OSO

1,160

SS7

436

326

617

Mqy^nmm

1,590

1,530

1,580

2,270

1,440

1,820

5,060

6,490

2,520

1.470

1,670

1,430

1,920

6,490

June

443

186

670

1,060

1,120

1,110

1,100

1,110

l.OSO

1,250

1,470

1,410

1,330

1,190

1,120

1,130

1,130

1,130

1,110

1,130

,130

,030

S5S

,330

,330

,270

,060

,140

,230

9S6

-

July

1,240

1,350

1,530

1,420

1,150

437

984

1,530

1,620

1,540

1,510

1,660

1,670

1,590

1,470

1,420

1,130

1,080

950

631

1,150

1,140

1,160

1,170

1,170

1,210

1,270

1,260

1,260

1,250

1,250

IHTi^miim

592

579

344

129

336

2SO

612

210

322

136

437

88S

852

186

Aug.

1,190

939

888

1,240

1,270

1,310

1,350

1,340

1,340

1,340

1,310

1,290

1,290

1,300

1,390

1,430

1,370

1,110

1,270

1,260

1,240

,220

,340

,460

,470

,4SO

,470

,480

,440

,280

,290

Mean

1,098

1,130

947

1,032

922

732

1,682

3,572

1,087

1,090

1,269

1,303

1,494

1,359

Sept.

1,300

1,350

1,480

1,420

1,310

1,310

1,420

1,650

1,920

1,840

1,730

1,720

1,580

1,2SO

1,280

1,600

1,680

1,650

1,480

1,420

1,530

1,550

1,540

1,510

1,530

1,640

1,560

352

1,160

1,530

-

Run-off in 

acre-feet

67,500

67,230

58,230

746,900

56,660

42,120

103,500

212,600

66,830

64,850

78,050

30,130

88,900

986,600
KLAMATH RIVER BASIN 3*9 

Klamath River below Fall Creek, near Copco, Calif.

Location.- Water-stage recorder, lat. 41°58', long. 122°22', in NEi sec. 36, T. 48 N., 

R. 5 W., 500 feet downstream from Fall Creek, half a nile downstream from Copco No. 2 

plant of The California Oregon Power Co., and 1 mile south of Copco post office. 

Altitude of gage, about 2,310 feet (from river profile map).

Drainage area.- 4,370 square miles.

Records available.- October 1928 to September 1940. October 1923 to September 1928, at 

site above Fall Creek.

Average discharge.- 17 years, 1,401 second-feet (including Fall Creek).

Extremes.- Maximum discharge during year, 8,140 second-feet Apr. 4 (gage height, 6.75 

feet;; minimum, 76 second-feet Oct. 15 (gage height, 1.03 feet); minimum daily, 288 

second-feet Oct. 8.

1923-40: Maximum discharge, 9,660 second-feet Apr. 27, May 3, 1938 (gage height, 

7.39 feet), from rating curve extended above 6,400 second-feet; minimum, about 10 

second-feet at former site several times in 1925 and 1926; minimum daily, 83 secondfeet at present site Aug. 2, 1931.

Remarks.- Records good. Diversion and regulation above station.

Cooperation.- col Water-stage recorder inspected by employee of The California Oregon Power

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

S

6

7 

8 

9 

10

11 

12 

13

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,000 

1,530 

1,810 

1,710 

1,630

1,480 

451 

288 

1,560 

1,610

1,880 

1,510 

1,670 

581 

308

1,670 

2,060 

1,950 

1,520 

1,880

732 

488 

1,880 

1,630 

1,580

1,550 

1,390 

739 

304 

1,090 

1,400

HOT.

1,630 

1,630 

1,500 

446 

2S9

1,690 

1,920 

1,820 

1,810 

1,670

534 

366 

1,700 

1,770 

1,830

1,910 

2,180 

664 

604 

1,960

2,230 

1,900 

458 

1,720 

1,320

337 

1,590 

1,810 

1,640 

1,510

Dec.

1,650 

524 

448 

1,870 

2,020

2,390 

2,290 

2,120 

530 

390

1,290 

1,640 

1,600 

1,700 

1,350

446 

333 

1,470 

1,590 

1,570

1,460 

1,660 

1,000 

476 

458

1,420 

1,520 

1,440 

1,410 

437 

301

Jan.

406 

1,470 

1,450 

1,380 

1,490

1,450 

710 

1,410 

1,420 

1,510

1,350 

1,360 

666 

594 

1,540

1,470 

1,690 

1,750 

1,770 

1,090

544 

1,500 

1,560 

1,490 

1,440

1,300 

539 

483 

1,290 

1,300 

1,020

Feb.

1,340 

1,420 

552 

430 

1,240

1,550 

1,530 

1,290 

1,400 

590

493 

1,290 

1,880 

1,390 

1,320

1,530 

481 

296 

1,300 

1,340

1,460 

792 

1,050 

1,250 

404

1,330 

1,960 

3,040 

3,100

Month

Oot Ho-j

Dec

C

Jan 

Peb 

Mar 

Apr 

Ma, 

Jun 

Jul 

Aug 

Bep

W

alendar year 1939......................

ust ........ .......... . .

ater year 1939-4

Mar.

2,900 

2,530 

1,450 

1,500 

1,480

1,520 

2,200 

3,120 

3,020 

1,960

2,110 

2,090 

1,700 

2,020 

1,700

486 

384 

1,620 

1,720 

2,000

1,910 

1,640 

678 

352 

1,680

2,220 

3,200 

3,440 

3,620 

5,170 

6,660

Apr.

6,560 

5,490 

7,090 

6,660 

6,940

6,580 

6,440 

a6,040 

a6,160 

f5,970

f5,730 

f5,030 

f4,700 

f4,400 

4,140

2,570 

3,170 

f3,460 

a2,510 

al,730

a2,250 

2,000 

1,470 

1,510 

1,530

1,550 

597 

783 

1,560 

1,560

Secondfoot-days

40,881 

42,438 

38,603

475,260

38,442 

36,448 

68,080 

116,180 

42,141 

39,433 

44,897 

46,274 

49,210

603,227

May

1,470 

1,480 

1,490 

593 

1,720

2,510 

1,850 

1,900 

1,680 

1,480

1,410 

495 

1,670 

1,570 

1,490

1,420 

1,460 

853 

470 

1,710

1,540 

1,520 

1,440 

1,430 

1,450

354 

1,340 

1,420 

1,220 

366 

1,340

Maximum

2,060 

2,230 

2,390

2,950

1,770 

3,100 

6,660 

7,090 

2,510 

1,770 

2,050 

1,910 

2,190

7,090

June

454 

302 

1,480 

1,530 

1,530

1,630 

1,700 

974 

470 

1,700

1,770 

1,750 

1,710 

1,730 

al,230

a399 

al,580 

al,620 

al,620 

al,690

1,620 

900 

370 

1,460 

1,610

1,550 

1,540 

1,580 

1,200 

734

July

2,050 

1,900 

1,920 

331 

1,390

1,710 

825 

1,820 

1,880 

1,970

1,900 

1,890 

1.640 

316 

1,860

1,600 

1,520 

1,550 

1,560 

852

289 

1,680 

1,700 

1,740 

1,650

1,520 

1,150 

414 

1,550 

1,510 

1,210

MJ,T>i.np?3

288 

289 

301

252

406 

296 

352 

597 

354 

302 

289 

293 

598

288

Aug.

1,490 

1,600 

1,430 

341 

1,640

1,660 

1,660 

1,730 

1,830 

1,560

293 

1,590 

1,650 

1,670 

1,690

1,560 

916 

388 

1,740 

1,800

1,830 

1,780 

1,900 

1,180 

616

1,830 

1,830 

1,910 

1,900 

1,800 

1,460

Mean

1,319 

1,415 

1,252

1,302

1,240 

1,257 

2,196 

3,873 

1,359 

1,314 

1,448 

1,493 

1,640

1,648

Sept.

706 

921 

1,710 

1,800 

2,090

2,190 

1,680 

598 

1,850 

2,030

2,090 

2,160 

1,880 

1,360 

848

1,740 

2,010 

1,580 

1,810 

2,120

1,550 

916 

1,980 

2,100 

2,080

2,150 

1,610 

972 

879 

1,800

Run-off in 

acre-feet

81,090 

84,170 

76,960

942,600

76,250 

72,290 

135,000 

230,400 

83,590 

78,210 

89,050 

91,780 

97,610

1,196,000

a No gage-height record; discharge computed on basis of records for power plant 2 miles upstream, 

f Discharge computed from partly estimated gage height.
350 KLAMATH RIVER BASIN

Klamath River at Somesbar, Calif.

Location.- Water-stage recorder, lat. 41°23', long. 123°29', in NEi sec. 4, T. 11 N., R. 

6 K., 300 feet downstream from Salmon River and 1 mile west of Somesbar post office. 

Altitude of gage, 450 feet (from topographic map).

Drainage area.- 8,480 square miles.

Records available.- October 1927 to September 1940.

Average discharge.- 12 years (1927-29, 1930-40), 6,183 second-feet.

Extremes.- Maximum discharge during year, 70,300 second-feet Feb. 28 (gage height, 31.1 

reet); minimum, 911 second-feet (regulated) Oct. 17.

1927-40: Maximum discharge, 73,700 second-feet Dec. 11, 1937 (gage height, 32.3 

feet); 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. Storage, large diversions for Irrigation, and considerable regulation by power plants above station.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,710 

2,090 

1,300 

2,390 

2,390

2,510 

2,280 

1,590 

1,180 

1,510

2,190 

2,570 

2,260 

2,170 

1,780

1,130 

1,440 

2,540 

2,570 

2,110

2,440

1,850 

1,400 

1,750 

2,400

2,340 

2,390 

2,260 

1,770 

1,460 

1,150

Hcv.

2,090 

2,130 

2,340 

2,140 

1,640

1,150 

1,570 

2,470 

2,390 

2,420

2,300 

1,830 

1,150 

1,660 

2,500

2,310 

2,600 

2,800 

1,860 

1,310

2,130 

2,880 

2,570 

1,740 

1,710

2,390 

1,440 

1,680 

2,310 

2,440

Dec.

2,190 

2,260 

1,680 

1,240 

1,860

2,500 

3,000 

3,450 

9,340 

14,30O

8,720 

6,390 

4,860 

4,480 

4,640

6,390 

10,900 

6,800 

5,710 

5,400

4,900 

4,280 

4,240 

3,340 

2,880

2,500 

3,000 

5,950 

11,800 

17,000 

19,200

Jan.

17,400 

18,300 

18,000 

22,300 

17,300

12,300 

10,100 

9,290 

15,500 

15,300

12,800 

10,500 

8,920 

7,300 

6,410

6,620 

6,210 

6,060 

5,930 

5,690

4,920 

4,110 

4,720 

4,980 

5,860

10,600 

11,700 

8,860 

8,020 

8,240 

7,810

Feb.

7,260 

7,280 

8,550 

11 ,100 

13 ,800

26,700 

25,100 

18,700 

14,600 

14,900

13,200 

11,700 

13,700 

14,300 

13,300

12,500 

16 ,700 

14,600 

12,100 

11,400

10,400 

10,000 

9,240 

9,970 

15,500

22,400 

43 ,800 

63,100 

57,600

Month

Oot

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

 oh. .................................... 

11 .....................................

ust....................................

ater year 1939-4

Mar.

40,600 

35,400 

28,900 

23,200 

19,800

17,400 

16,200 

18,300 

17,400 

15,500

13,500 

12,800 

12,000 

11,300 

11,100

11 ,700 

10,300 

9,430 

10,200 

10,200

10,600 

10,900 

10,600 

10,400 

10,600

27,000 

35,800 

29,700 

33,200 

39,300 

37,800

Apr.

33,100 

27,800 

24 ,000 

22,900 

21,200

19,800 

20,800 

20,400 

19,700 

19,000

18,300 

18,200 

18,000 

17,800 

16,300

14,800 

12,700 

13,200 

13,300 

12,000

11,800 

11,400 

11,100 

10,300 

9,870

9,510 

9,090 

8,070 

8,020 

9,250

Seoondfoot-days

61,420 

61,950 

185,200

1,662,304

312,550 

523 ,500 

601,130 

481,710 

255,200 

126,770 

79,000 

69,230 

75 ,850

2,833,510

May

9,400 

9,950 

9,530 

10,400 

8,930

9,300 

10,000 

9,190 

9,430 

10,100

9,870 

9,530 

8,520 

9,220 

8,860

8,830 

8,500 

8,240 

7,620 

7,220

8,140 

7,920 

7,870 

7,570 

7,100

6,270 

5,240 

5,780 

6,080 

5,640 

4,950

Maxdjnuni

2,570 

2,880 

19,200

20,900

22,800 

63,100 

40,600 

33,100 

10,400 

6,290 

3,360 

2,720 

3,460

63,100

June

6,290

5,eoo

4,880 

5,510 

5,530

5,350 

5,200 

5,200 

4,400 

3,800

4,620 

4,990 

4,820 

4,580 

4,640

4,060 

3,360 

3,690 

4,080 

3,950

3,820 

3,750 

3,120 

2,640 

2,830

3,380 

3,240 

3,190 

3,190 

2,860

July

2,340 

3,190 

3,240 

3,360 

2,310

1,960 

2,860 

2,400 

2,500 

3,060

3,140 

3,090 

3,010 

3,150 

1,920

2,260 

2,720 

2,590 

2,560 

2,700

2,290 

1,770 

1,820 

2,680 

2,660

2,620 

2,480 

2,350 

1,750 

1,800 

2,420

Mjp^Tffiim

1,130 

1,150 

1,240

959

4,110 

7,260 

9,430 

8,020 

4,950 

2,640 

1,750 

1,450 

1,510

1,130

Aug.

2,340 

2,180 

2,400 

2,320 

1,830

1,650 

2,460 

2,460 

2,540 

2,720

2,560 

1,680 

1,640 

2,420 

2,400

2,420 

2,420 

2,040 

1,450 

1,550

2,480 

2,620 

2,580 

2,540 

2,210

1,520 

1,810 

2,480 

2,4SO 

2,530 

2,500

Mean

1,981 

2,065 

5,974

4,554

10,080 

18,050 

19,390 

16,060 

8,232 

4,226 

2,548 

2,233 

2,528

7,742

Sept.

2,130 

1,750 

1,510 

2,170 

2,410

2,770 

3,120 

2,530 

1,960 

1,900

2,660 

2,960 

2,990 

2,740 

2,410

1,850 

2,460 

2,960 

2,880 

2,700

2,96O 

2,540 

2,080 

2,500 

2,930

2,990 

3,460 

3,240 

2,270 

2,020

Run-off in 

aore-feet

121,800 

122,900 

367,300

3,297,000

619,900 

1,038,000 

1,192,000 

955,500 

506,200 

251,400 

156,700 

137,300 

150,400

5,619,000

Peak discharge.- Dec. 10 (6 p.m.) 17,000 sec.-ft.; Dec. 31 (8 p.m.) 23,200 sec.-ft.; Feb. 6 (2 

p.m.) 32,500 sec.-ft.; Feb. 28 (12:30 p.m.) 70,300 sec.-ft.; Mar. 26 (6:30 p.m.) 41,900 sec.-ft.; 

Mar. 29 (8 p.m.) 40,000 sec.-ft.
KLAMATH RIVER BASIN 351

Sprague River near Chiloquin, Oreg.

Location.- Water-stage recorder, lat. 42°35', long. 121°51', in NEt sec. 35, T. 34 S., R. 

7 E., li miles east of Chiloquin and 4 miles upstream from Modoc Point canal intake.

Drainage area.- 1,580 square miles.

Records available.- August 1931 to September 1940. July 1920 to September 1931, at site 

at ncuready ranch, 12 miles upstream; records equivalent except those for extremely 

low stages.

Average discharge.- 19 years (1921-40), 426 second-feet.

Extremes.- Maximum discharge during year, 4,870 second-feet Apr. 3 (gage height, 6.30 

feet); minimum, 124 second-feet Aug. 14 (gage height, 1.28 feet).

1920-40: Maximum discharge, 6,380 second-feet Apr. 22. 1938 (gage height, 7.34 

feet); minimum daily discharge, 50 second-feet (estimated) May 26, 27, 1926.

Remarks.- Records good except those for Jan. 17, 18, which are fair. Diversions above 

station for irrigation; regulation by ponding at irrigation dams.

Cooperation.- oper ~CoT Water-stage recorder inspected by employee of The California Oregon Power

Rating table, water year 1939-40 except periods of ice effect (gage height, in feet, and 

discharge, in second-feet)

1.2 103 2.4 690 4.C 2,020 

1.4 159 2.8 975 4.5 2,530 

1.7 273 3.2 1,290 5.0 3,110 

2.0 435 3.6 1,640 6.5 5,170

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

2 

3 

4 

5

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 

51

Oct.

268 

22 S 

212 

209 

216

212 

212 

209 

209 

212

212 

212 

236 

220 

209

246

254 

250

209

209 

209 

176 

186 

254

236 

228 

224 

228 

264 

236

HOT.

241 

232 

228 

228 

220

224 

246 

228 

220 

228

228 

228 

232 

232 

232

228 

228 

228 

228 

228

228 

228 

224 

232 

232

236 

228 

224 

201 

205

Dec.

241 

228 

228 

232 

232

232 

236 

302 

287 

292

328 

345 

356 

345 

334

328 

339 

313 

308 

323

313

308 

313 

b300 

b310

b300 

282 

246 

259 

292 

302

Jan.

334 

437 

528 

656 

809

950 

1,040 

1,010 

S23 

688

598 

643 

708 

747 

650

b420 

b400 

b385 

373 

339

308 

313 

302 

250 

282

318 

350 

396 

431 

449 

479

Feb.

528 

565 

610 

578 

565

604 

682 

747 

875 

1,030

1,080 

950 

809 

734 

669

584 

522

485 

461 

437

419 

408 

402 

402 

455

578 

809 

1,210 

1,640

Month

Dot 

Hoi

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jim 

Jul

Al"S 

Sep

w

ember . ...... 

ember. .................................

uary

ater year 1939-4

Mar.

2,850 

4,000 

3,820 

3,020 

2,310

1,870 

1,600 

1,440 

1,270 

1,150

1,070 

1,040 

996 

935 

852

795 

754 

728 

714 

662

636 

624 

617 

617 

643

714 

852 

965 

1,150 

1,520 

2,240

Apr.

2,

4, 

4, 

4, 

3»

2, 

2, 

2,

l!

1, 

1, 

1, 

1,

1,

1, 

1,

1, 

1, 

1,

1, 

1, 

1, 

1,

1,

1, 

1, 

1, 

1, 

1,

Seoondf oo t -days

6,905 

6,825 

9,054

107,607

16,416 

19,838 

42,454 

59,080 

25,173

8,010 

6,147 

5,448 

6,021

211,371

990 

250 

790 

230 

360

710 

430 

270 

060 

840

690 

590 

530 

480 

420

380 

360 

380 

420 

440

400 

360 

330 

330 

330

350 

340 

350 

350 

320

May

1,280 

1,220 

1,160 

1,140 

1,100

1,060 

1,050 

1,060 

1,040 

1,040

1,000 

958 

898 

838 

802

781 

760 

747 

734 

721

688 

656

617 

553 

528

515 

491 

467 

431 

419 

419

Mqyiip^m

268 

246 

356

1,310

1,040 

1,640 

4,000 

4,790 

1,280 

419 

264 

302 

313

4,790

June

419 

40S 

396 

277 

26S

318 

334 

32S 

323 

318

339 

339 

297 

268

254

232 

224 

224 

224 

220

224 

228 

224 

193 

179

193 

193 

190 

190 

186

July

179 

179 

179 

183 

186

186 

186 

186 

183 

193

250 

264 

236 

212 

193

183 

186 

190 

193 

193

190 

190 

193 

224 

216

201 

201 

197 

197 

197 

201

Aug.

201 

197 

197 

193 

190

190 

186 

186 

179 

183

183 

166 

129 

124 

132

150 

162 

166 

169 

162

156 

159 

166 

169 

173

173 

173 

173 

169 

190 

302

lliiHimm Mean

176 223 

201 228 

228 292

111 295

250 530 

402 684 

617 1,369 

1,320 1,969 

419 812 

179 267 

179 198 

124 176 

1^6 201

124 578

Sept.

259 

228 

166 

126 

126

132 

147 

159 

173 

176

176 

176 

179 

190 

236

297 

313 

241 

228 

228

228 

228 

228 

224 

176

141 

179 

209 

220 

232

Run-off in 

acre-feet

13,700 

13,540 

17,960

213,400

32,560 

39,350 

84,210 

117,200 

. 49,930 

15,890 

12,190- 

10,810 

11,940

419,300

b Stage-discharge relation affected by ice.
352 KLAHATH RIVER BASIN

Cascade canal near Fish Lake, Oreg.

Location.- Water-stage recorder, let. 42°24', long. 122°16', In SEi sec. 30, T. 36 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 1939).available.- 

 

June 1924 to September 1940 (irrigation seasons only prior to October 

Extremes.- Maximum discharge recorded during year, 48 second-feet July 5-7 (gage height, 

2.01 feet); practically no flow during periods October to March and Aug. 18 to Sept. 

30.

1924-40: Maximum discharge recorded, 60 second-feet June 5, 1934; no flow at times.

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

Water stored in Fourmile Lake Reservoir was released to canal during period May 16 to 

Aug. 16. Canal diverts water from Fourmile Creek, in Klamath River Basin, and discharges into lava bed li miles above Fish Lake, in Rogue River Basin. Entire flow 

sinks Into lava bed, reappearing in springs at head of Fish Lake.

Discharge, in second-feet, water year October 1939 to September 194O,

Day

1

3

4

5

6

7

fl

9

10

11

12

13

14

15

16

17

IS

19

20

21 

22

25

24

25

26

27

28

29

SO

31

Oct. HOT. Dec. Jan. Feb.

Honth

March. .................. ...................

Hay.......................................

Water year 1939-4

Mar. Apr.

X

a4

h6

-

Seoondfoot-days

o

_

1 317

0

3,698.6

May

H6.2

a5.8

a5.4

a4.9

a4.5

a4.1

a3.7

H3.3

a3.4

a3.4

h3.5

a2.8

H2.2

a2.2

a2.2

f30

a44

f44

44

44

\\

44

44

44

44

44

45

45

45

46

Mmrlimnn

0

0

0

_

0'

0

48

June

46

a46

a46

a46

a46

f46

46

45

45

44

44

f46

f45

44

44

44

44

44

45

45

44 

44

44

44

44

44

46

46

46

46

-

July

45

46

46

42

42

48

47

46

46

46

45

44

46

44

44

45

45

45

45

45

a45 

f45

45

44

44

42

38

a34

a30

a26

f22

Ifiy^imim

0

0

0

_

0

0

o

Aug.

f2O

h!7

f!6

15

13

8.1

6.7

6.2

5.6

6.9

7.1

5.6

a4.9

a4.2

a3.5

H2.8

al.4

0

0

0

8

0

0

0

o

0

0

o

0

0

Mean

O

0

0

_

0

0

0

4.53

0

10.1

Sept.

Run-off In 

acre-feet

O

0

0

-

0

0

 o

27O

1,490

2,680

286

0

7,340

a Ho gage-height record; discharge Interpolated or computed on basis of Information furnished by 

State engineer's office.

f Discharge computed from partly estimated gage height. 

h Discharge computed from staff-gage reading.
KLAMATH RIVER BASIN 353

"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 1940. 

Average discharge.- 30 years (1910-40), 176 second-feet.

Extremes.- Ifexlmum dally discharge during year, 1,060 second-feet June 19 (gage height, 

10.31 feet); no flow Oct. 4 to Apr. 24.

1910-40: mxlmum discharge, 1,100 second-feet July 20, 1937; maximum stage, 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 U. S. Bureau of Reclamation.

Discharge, in second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

297

172

50

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

HOT. Dec. Jan. Feb.

Month

Calendar year 1939. .....................

Fet 

Max

April.....................................

May. ......................................

fal-r. .....................................

Aug 

Sei

Water year 1939-4 0................ ......

Mar. Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

15

15

15

15

20

25

Secondfoot-days

519

0

0

113,659

0

0 

0

106

18,338

25,314

26,020

20,092 

7,201

97,589

May

54

90

97

112

153

212

252

300

405

470

511

543

607

662

683

744

794

807

634

840

868

865

912

942

913

650

612

810

805

716

655

^flirlimiiB

297

0

0

1,030

0

0 

0

25

942

1,060

994

767 

540

1,060

June

642

557

532

585

690

753

781

769

746

627

951

994

979

973

953

876

900

970

1,060

1,040

960

906

834

821

880

916

905

865

640

789

-

July

737

799

795

669

758

722

843

670

942

994

971

958

947

863

871

917

930

953

942

630

768

801

864

847

830

837

762

691

736

766

767

Minimum

0

0

0

0

0

0 

0

0

54

532

669

491 

28

0

Aug.

698

695

709

673

695

767

762

712

713

641

617

695

726

727

720

684

645

584

634

657

621

626

605

550

491

544

581

588

585

571

574

Mean

16.7

0

0

311

0

0 

0

3.5

592

844

639

648 

240

267

Sept.

540

539

507

436

392

401

377

333

301

233

235

255

260

258

254

247

219

193

126

74

71

73

95

119

145

172

165

94

59

28

-

Run-off in 

acre-feet

1,030

0

0

225,400

0

0 

0

208

36.370

50,210

51,610

39,850 

14,280

193,600
354 KLAMATH RIVER BASIN

Keno Canal at Klamath Falls, dreg.

Location.- Watt-hour meter, lat. 42°13', long. 121°48', in SWi sec. 32, T. 38 S., R. 9 

E., In west-side plant of The California Oregon Power Co., a quarter of a mile upstream 

from bridge over Link River at Klamath Falls, with staff gage In canal 200 feet above 

penstock.

Records available.- October 1923 to September 1940. 

Average discharge.- 17 years, 205 second-feet.

Extremes.- Maximum dally discharge during year, 339 second-feet Feb. 1; no flow at times. 

I9"3"3-40: Maximum dally discharge, that of Feb. 1, 1940; no flow at times.

Remarks.- Records good except those above 300 second-feet, which Include a larger proportlon of discharge as measured at spillway and are poor. Discharge determined from 

record of electrical output of power plant combined with spill 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.

Cooperation.- Gage readings and record of electrical output furnished by The California 

Oregon Power Co.

Discharge, In second-feet, water year October 1939 to September 1940

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.

301 

290 

292 

261 

286

288 

286 

286 

272 

280

281 

283 

281

275 

279

263 

271 

258 

269 

262

274 

284 

268 

289 

274

250 

270 

274 

280 

267 

271

Hov.

269 

260 

268 

270 

269

261 

264 

269 

264

265

281 

285 

261 

280 

274

270 

273 

272 

274 

272

263 

268 

270 

271 

253

256 

254 

260 

240 

289

Dec.

231 

289 

292 

271 

262

265 

258 

243 

200 

0

0

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

2 

2

74 

115 

107 

110 

110 

47

Jan.

6

7 

7 

8 

9

9 

9 

9 

10 

10

10 

10 

10 

10 

10

10 

10 

10 

10 

11

11 

11 

11 

11 

11

11 

10 

10 

10 

10 

239

Feb.

339 

261 

47 

42 

36

31 

129 

139 

16 

10

5 

5 

5 

5 

5

5 

5 

5 

5 

5

5 

5 

5 

5 

5

5 

5 

5

5

Month

Dot 

Hov 

Dec

C

Jan 

F«b 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

H

uary

ater year 1939-

Mar.

5 

5 

6 

6

7

7 

126 

282 

281 

280

287 

201 

3 

3 

4

6

7 

80 

190 

8

7 

7 

7 

6 

6

179 

289 

282 

278 

279 

273

Apr.

267 

272 

265 

270 

270

26S 

273 

273 

269 

269

276 

274 

277 

271 

280

275 

276 

277 

280 

284

283 

285 

116 

4 

5

4 

4 

4 

5 

5

Secondfoot-days

8,565 

8,025 

2,890

92,242

530 

1,145 

3,407 

6,181 

8,754 

8,498 

8,897 

8,460 

8,320

73,672

May

97 

287 

287 

287 

292

295 

288 

292 

290 

293

290 

290 

290 

290 

292

290 

292 

287 

288 

287

289 

289 

295 

282 

290

291 

284 

285 

284 

280 

281

Maximum

301 

289 

292

304

239 

339 

289 

285 

295 

290 

300 

297 

299

539

June

2S1 

286 

284 

288 

286

286 

284 

283 

279 

283

279 

279 

285 

283 

283

283 

281 

284 

290 

284

284 

282 

283 

277 

284

282 

286 

284 

284 

281

July

287 

288 

290 

286 

2S7

290 

288 

287 

285 

285

281 

288 

300 

295 

289

291 

290 

288 

289 

288

290 

287 

285 

285 

281

283 

282 

283 

282 

284 

283

Minimum

250 

240 

0

0

6 

5 

3 

4 

97 

277 

281 

229 

249

0

Aug.

229 

284 

294 

295 

297

284 

282 

240 

274 

274

274 

274 

277 

275 

268

267 

270 

263 

261 

267

276 

278 

273 

273 

271

268 

267 

269 

276 

279 

281

Mean

276 

268 

93.2

253

17.1 

39.5 

110 

206 

282 

283 

287 

273 

277

201

Sept.

279 

277 

263 

275 

289

279 

263 

269 

262 

285

275 

264 

276 

292 

297

278 

280 

276 

292 

284

287 

280 

278 

279 

270

249 

264 

299 

285 

274

Run-off in 

acre-feet

16,990 

15,920 

5,730

183,000

1,050 

2,270 

6,760 

12,260 

17,360 

16,860 

17,650 

16,780 

16,500

146,100
KLAMATH RIVER BASIN 

Lost River diversion canal near Olene, Oreg.

355

Location.- Staff gages above and below headgates at intake of canal at Lost River Dam; 

water-stage recorder, lat. 42°09', long. 121°42', in SWi sec. 30, T. 39 S., R. 10 E., 

li niles downstream from intake and 5 miles southwest of Olene.

Records available.- May 1912 to September 1940.

Average discharge.- 24 years (1912-15, 1919-40), 115 second-feet.

Extremes.- Maximum daily discharge during year, 1,190 second-feet Mar. 1-3; no flow at 

times.

1912-40; Maximum discharge, 1,320 second-feet Apr. 11, 1935; no flow at times.

Remarks.- Records fair. Discharge computed from record of openings and head on gates; 

water-stage recorder used to indicate changes between readings. Canal diverts water 

from Lost River in SWi sec. 29, T. 39 S., R. 10 E., and discharges it 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 1939 tc September 194O

Day

1

2

3

4

S

6

7

e

9

10

11

18

13

14

IS

16

17

18

19

20

21

28

S3

84

25

26

27

28

29

SO

31

Oct.

35

101

102

103

161

210

204

196

196

189

182

174

168

162

153

143

132

121

118

112

109

107

106

104

119

128

139

149

149

143

140

HOT.

133

128

124

122

117

117

115

115

112

111

111

111

110

110

110

109

109

107

108

108

109

109

108

108

108

109

109

110

110

108

-

Dec.

107

108

107

107

107

110

110

110

115

193

222

222

227

230

214

193

175

115

117

170

181

174

164

154

142

109

110

115

121

129

192

Jan.

283

490

515

520

532

535

492

455

396

392

422

456

460

426

378

326

231

196

200

200

178

172

168

166

168

176

195

220

270

304

321

Feb.

322

315

302

282

274

259

375

434

472

478

482

465

425

378

335

275

199

221

235

241

235

222

206

196

215

245

466

858

1,180

-

-

Month

March, ....................................

April.....................................

te.. .....................................

July ......................................

Water year 1939-40......................

liar.

1,190

1,190

1,190

1,120

954

770

630

537

436

385

304

241

355

322

283

282

311

313

293

294

259

258

252

208

204

181

199

223

248

412

930

Apr.

1,030

1,100

1,140

1,080

925

759

64S

602

620

70S

699

667

63S

625

607

573

560

504

449

400

335

335

244

281

282

239

183

128

1O7

72

Secondfoot -days

4,405

3,375

4,650

29,909

10,845

10 592

14 779

16^545

511

0

0

457

3,822

69,381

May

59

0

0

46

78

66

49

57

93

63

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

MnT<ppwii

210

133

230

299

535

1,180

1,190

1,140

93

0

0

225

185

1,190

June July

lHT»<nnim

85

107

107

0

166

196

181

72

0

0

0

0

86

0

Aug.

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

36

196

225

Mean

142

112

150

81.9

330

365

477

552

16.5

0

0

14.7

127

190

Sept.

185

161

162

152

152

173

152

149

147

163

163

160

152

148

115

101

92

88

91

109

120

128

120

98

86

87

87

93

91

107

Run-off In 

acre-feet

8,740

6,690

9,220

59,320

20,320

21,010

29,310

32,820

1,010

0

0

906

7,580

137,600
356 KLAMTH RIVER BASIN 

Diversion from Klamath River to Lost River near Olene, Oreg.

Location.- Water-stage recorder, lat. 42°09', long. 121°42', In SWi sec. 30, T. 39 S., R. 

10 E., 5 miles southwest of Olene; staff gage above rectangular gate at wasteway, 0.4 

mile east of recorder.

Records available.- April 1931, when diversion began, to September 1940.

Extremes.- Maximum dally discharge during year, 304 second-feet May 25, 26; no flow at 

times.

1931-40: Maximum dally discharge, 564 second-feet Apr. 13, 1933; no flow at times.

Remarks.- Records fair. Discharge computed from record of gate openings and gage readings 

at wasteway; recorder used as Index of changes between readings. 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 

that empties Into Lost River, from which It Is redlverted for Irrigation of lands near 

Tule Lake.

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

S

6

1

8

9

10

11

12

19

14

IS

16

17

18

19

20

21

22

23

24

25

86

27

28

29

30

31

Oct. HOT.

_

Dee. Jan. Feb.

Month

Calendar year 1939 ......................

March.....................................

April.....................................

May.......................................

July......................................

Water year 1939-40...... ................

Mar. Apr.

Secondfoot -days

0

0

0

25,030

0

0

0

0

4,727

3, 668

869

0

15,201

May

0

31

18

0

0

0

0

0

0

33

97

101

110

14 S

190

217

27S

257

194

140

121

150

236

29 S

304

304

303

303

303

303

2SS

llq-ff^yniifl

0

0

0

532

0

0

0

0

304

SSl

21S

106

0

304

June

245

190

175

175

189

19S

197

183

144

141

23O

281

281

263

239

240

246

262

263

263

235

193

182

1S1

181

1S1

151

93

67

6S

-

July

86

71

18

0

0

0

0

55

114

160

160

161

161

162

162

194

212

210

210

177

132

114

149

165

164

117

84

84

SS

120

138

Minimum

0

0

0

0

0

0

0

0

o

67

0

0

0

0

Aug.

106

85

45

15

14

42

60

32

12

11

11

33

47

54

70

34

19

10

27

40

29

10

10

10

10

10

10

10

3

0

0

Mean

0

0

0

6S.6

0

0

0

O

152

1 J.V9 Qfl 

118

no «

0

41.5

Sept.

Run-off in 

acre-feet

0

0

0

49,640

0

0

0

0

9,380

11,780

7,280

1,720

0

30,160
KLAMATH RIVER BASIN 

Fall Creek at Copco, Calif.

357

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 1940. 

Average discharge.- 12 years, 33.1 second-feet.

Extremes.- Maximum discharge during year, 241 second-feet Feb. 28 (gage height, 2.64 feet, 

observed at peak), from rating curve extended above 80 second-feet; minimum observed, 

26 second-feet on some days In June and August.

1928-40: Maximum discharge, that of Feb. 28, 1940; minimum, 24 second-feet on many 

days In period June to September 1937.

Remarks.- Records good. No diversion above station. Slight diurnal fluctuation caused by 

fish ponds half a mile upstream. Gage read once dally.

Cooperation.- Gage-height record furnished by The California Oregon Power Co. and 

California State Division of Fish and Game.

Rating table, witer year 1939-40 (gage height, in feet, and discharge, in second-feet)

1.0 

1.2

1.4

1.6 

1.8 

2.0

2.3 

2.6

176

233

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

a28 

a2S 

28 

28 

29

28

a2S 

28 

28

27 

27 

27 

a28 

28

27 

27 

28 

27 

28

28 

27 

28 

a28 

a29

29 

29 

29 

29 

29

HOT.

29 

2S 

29 

29 

a2S

28 

28 

29 

29 

a29

a2S 

a28 

28 

29 

29

29 

29 

28 

30

29 

29 

29 

30 

30

30 

30 

29 

30 

a30

Dec.

30 

30 

30 

29 

29

31 

30 

30 

55 

36

38 

32 

31 

32 

31

32 

39 

32 

31 

31

30 

30 

30 

a30 

29

30 

30 

30 

29 

49 

37

Jan.

34 

46 

40 

56 

36

34 

34 

34 

35 

33

32 

32 

32 

32 

30

a30 

30 

31 

a30 

30

30 

29 

29 

30 

30

56 

36 

33 

32 

32 

31

Feb.

32 

30 

a 50 

a40 

a45

53 

38 

36 

33 

36

35 

32 

36 

40 

39

31 

36 

38 

36 

33

33 

34 

34 

35 

32

34 

99 

al50 

a70

Month

Dot 

Ho?

Dec

C

Jan 

Pet 

Mar 

Apr 

May 

Jim 

Jill 

Au« 

Sep

11

iiary

ater year 1939-4

Mar.

56 

853 

49 

43 

41

39 

38 

39 

37 

36

34 

34 

33 

33 

33

33 

a3 2 

32 

31 

30

30 

30 

30 

31 

32

91 

55 

44 

60 

124 

89

Apr.

64 

54 

49 

49 

44

42 

42 

40 

39 

38

36 

35 

35 

33 

33

33 

32 

34 

33 

33

32 

31 

32 

31 

30

32

32 

32 

32

Seoondfoot-days

869 

869 

1,013

10,875

1,059 

1,270 

1,372 

1,114 

904 

816 

862 

848 

858

11,854

May

32 

32 

32 

32 

32

31 

31 

31 

31 

30

29 

30 

30 

30 

28

27 

28 

28 

27 

27

28 

27 

28 

28 

28

28

28 

28 

SB 

27

Max3jnuni

29 

30 

49

80

56 

150 

124 

64 

32 

29 

£9 

29 

31

150

June .

29 

28 

28 

28 

28

28 

26 

27 

26 

27

27 

28 

27 

27 

27

828 

28 

28 

27 

26

26 

26 

27 

26 

26

27 

28 

27 

27 

28

July

28 

27 

27 

27 

28

27 

a26 

26 

29 

28

28 

2S 

28 

29 

28

28 

28 

28 

29 

28

a28 

28 

28 

28 

28

28 

27 

28 

28 

28 

28

Wi^immt

27 

23 

29

26

29 

30 

30 

30 

27 

26 

26 

26 

27

26

Aug.

29 

28 

28 

28 

28

27 

27 

28 

27 

26

a26 

27 

27 

a27 

27

27 

28 

26 

23 

28

28 

28 

27 

27 

26

27 

27 

28 

28 

28 

27

Mean

28.0 

29.0 

32.7

29.8

34.2 

43.8 

44.3 

37.1 

29.2 

27.2 

27.8 

27.4 

28.6

32.4

Sept.

27 

a28 

23 

23 

23

28 

28 

a2S 

a28 

28

27 

23 

28 

29 

a29

a29 

a29 

a29 

29 

29

29 

29 

29 

28 

29

29 

29 

aSO 

30 

31

Run-off In 

acre-feet

1,720 

1,720 

2,010

21,560

8,100 

8,520 

8,720 

2,210 

1,790 

1,620 

1,710 

1,680 

1,700

23,500

a Ho gage-height record; discharge interpolated except Feb. 28 when peak discharge occurred and 

daily discharge is based'on staff-gage reading and weather records.
358 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 3., 

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 1940 (some years Incomplete).

Extremes.- Maximum discharge during year, 57 second-feet Aug. 12 (gage height, 2.36 

reet;; no flow at times.

1923-40: Maximum discharge, 91 second-feet Aug. 2, 3, 1938, July 23, 1939; no flow 

at times.

Remarks.- Records fair. 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.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

S

3

4

5

6

7

S

9

10

U

12

IS

14

15

16

17

18

19

80

Si

S2

S3

84

85

86

87

28

29

SO

SI

Oct. HOT. Dec. Jan. Feb.

Itonth

March. ....................................

April.....................................

Hay.......................................

July. .....................................

Water year 1939-40....... ...............

Mar.

-

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.5

. al.5

1.3

Seoondfoot-days

0

0

0

-

0

0

0

15.3

440. S

1,243

1,465

900.1

6.4

4,072.6

May

1.1

1.1

1.2

l.S

l.S

1.2

.7

.6

.6

.6

.5

.5

.4

3.7

14

20

20

20

20

20

21

25

27

27

26

26

26

26

25

42

40

Ha*,**.

0

0

0

-

0

0

0

42

50

51

56

.9

56

June

36

35

33

29

32

33

33

33

34

34

34

32

29

40

50

49

49

49

49

49

49

48

4S

4S

4S

4S

48

48

4S

46

Jiily

48

48

4S

4S

48

48

48

4S

48

4S

46

46

46

46

46

46

45

45

45

45

45

45

45

45

46

51

50

50

50

50

50

Minimum

0

0

0

-

0

0

0

0

.4

29

45

1.9

.2

0

Aug.

50

52

52

52

50

50

49

4S

49

50

51

56

56

53

50

47

21

8.0

5.3

4.S

5.7

5.7

5.1

4.S

4.5

4.2

4.0

3.S

3.2

3.1

1.9

Mean

0

0

0

-

0

0

0

.51

14.2

41.4

47.3

29.0

.2S

11.1

Sept.

0.9

.5

.4

.4

.4

.4

.4

.4

.3

.3

.2

'

> a. 2

j

-

Run-off in 

acre-feet

0

0

0

-

0

0

0

30

874

2,470

2,910

1,790

17

8.090

a Ho gage-height record; 

office.

discharge computed on basis of Information furnished by State engineer's
KLAM4TH RIVER BASIN 359

Shasta River near Yreka, Calif.

Location.- Water-stage recorder, lat. 41°49', long. 122°35', in NEi sec. 24, T. 46 N., R. 

7 w., 0.6 mile upstream from mouth and 6 miles north of Yreka. Altitude of gage, about 

2,000 feet (from topographic map).

Drainage area.- 804 square miles.

Records available.- October 1933 to September 1940.

Extremes.- Maximum discharge during year, 2,440 second-feet Feb. 29 (gage height, 6.72 

feet), from rating curve extended above 900 second-feet by logarithmic plotting on 

basis of velocity-area studies; minimum, 24 second-feet June 19.

1933-40: Maximum discharge, that of Feb. 29, 1940; minimum, 3.4 second-feet Aug. 

13, 1939, when about 2 second-feet were being diverted around gage.

Remarks.- Records good except those for period of no gage-height record, which are fair, 

storage and many diversions above station for irrigation.

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Si

22

29

84

25

26

27

28

29

80

SI

Oct.

123

125

123

116

116

118

US

116

114

114

107

107

107

111

111

109

107

107

106

106

106

109

109

120

138

140

130

125

123

120

120

HOT.

118

118

118

118

118

118

120

120

120

120

123

125

123

123

120

120

120

123

123

123

123

123

123

123

123

123

123

123

123

123

-

Dec.

123

125

125

125

127

127

123

127

295

473

500

393

266

209

191

194

334

253

209

191

185

174

168

166

160

157

160

163

160

224

338

Jan.

317

375

396

465

368

298

256

240

234

234

215

212

197

185

135

135

177

180

185

138

180

174

174

174

200

224

237

221

206

191

1S2

Feb.

177

182

194

266

321

324

432

341

301

279

276

253

288

345

324

292

292

314

328

282

256

250

263

256

263

301

524

1,220

1,900

_

-

Month

March.....................................

April.....................................

toy.......................................

July. .....................................

Water year 1939-40......................

Mar.

1,170

1,130

882

724

62S

548

491

487

479

434

414

3SO

352

334

SOS

295

295

279

256

266

263

260

247

240

269

359

571

475

462

S04

1,490

Apr.

1,190

S94

768

729

729

668

638

62S

608

557

539

522

496

426

384

366

317

292

276

266

250

231

215

200

247

260

209

188

185

132

-

Secondfoot-days

3,601

3,641

6,565

37,081.3

7,255

11,044

15,592

13,442

3,233

2,208

1,798

1,853

3,343

73,580

Kay

174

203

228

206

215

209

132

154

143

123

106

106

107

86

74

69

65

67

66

67

62

50

42

46

52

45

49

53

49

64

76

Maximum

140

125

500

500

465

1,900

1,490

1,190

22S

154

85

80

146

1,900

June

92

130

154

154

149

146

120

67

87

83

79

76

64

74

64

44

34

34

32

34

34

42

50

51

49

46

51

55

49

44

-

July

56

54

47

44

39

39

41

44

50

58

67

62

66

71

85

75

70

67

62

59

54

56

58

49

48

47

50

55

75

78

78

HHnllmim

106

113

123

4.1

174

177

240

182

42

32

39

42

65

32

Aug.

79

69

52

44

48

59

74

74

69

68

61

54

54

51

45

48

43

56

59

59

67

80

69

60

56

64

58

a60

a65

a65

a65

Mean

116

181

818

108

834

3S1

503

448

104

73.6

58.0

59.8

111

801

Sept.

a65

a65

a75

alOO

allO

alOS

alOO

a90

aS5

a80

a75

72

90

98

118

114

123

143

146

143

136

132

136

132

132

132

132

135

138

143

-

Run-off in 

acre-feet

7,140

7,220

13,020

73,540

14,390

21,910

30,930

26,660

6,420

4,3SO

3,570

3,680

6,630

146,000

Peak discharge.- Feb. 29 (4 a.m.) 2,440 sec.-ft.; Mar. 27 (6 a.m.) 623 sec.-ft. 

a Ho gage-height record; discharge computed on basis of recorded range of stage, rainfall records, and records for Salmon River at Somes Bar.
360 KLAMATH RIVER BASIN 

Salmon River at Somesbar, Calif.

Location.- Water-stage recorder, lat. 41°23', long. 123°28', in NWi sec. 2, T. 11 N., R.

 6 kl., half a mile east of Somesbar post office and li miles upstream from mouth. Altitude of gage, 500 feet (from topographic map).

Drainage area.- 737 square miles.

Records available.- September 1911 to September 1915, October 1927 to September 1940.

Average discharge.- 14 years (1911-13, 1927-29, 1930-40), 1,471 second-feet.

Extremes.- Maximum discharge during year, 21,200 second-feet Feb. 28 (gage height, 12.75

 feet); minimum, 117 second-feet Oct. 1 (gage height, 2.81 feet).

1927-40: 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 below 5,000 second-feet; fair above. No large diversions above

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2 

3

4 

5

6

7 

8 

9 

10

11 

12 

IS 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

SI

Oct.

120 

130 

130 

130 

146

161 

157 

150 

146 

140

136 

133 

130 

130 

127

124 

124 

124 

124 

124

124 

120 

120 

154 

161

150 

180 

189 

180 

169 

161

Bov.

154 

146 

146 

143 

143

143 

143 

143 

140 

140

140 

140 

140 

136 

136

136 

133 

133 

133 

133

133 

133 

130 

130 

130

150 

150 

143 

140 

140

Dec.

140 

140 

140 

140 

136

140 

140 

230 

2,910 

4,300

2,090 

1,060 

770 

680 

671

1,140 

3,260 

1,540 

1,130 

1..020

860 

740 

680 

604 

550

514 

497 

1,080 

3,170 

5,260 

5,550

Jan.

5,480 

5,590 

4,800 

5,680 

3,990

2,880 

2,360 

2,160 

3,210 

3,530

3,000 

2,480 

2,070 

1,790 

1,590

1,430 

1,300 

1,230 

1,150 

1,080

1,010 

978 

945 

956 

1,110

2,240 

2,260 

1,870 

1,830 

1,830 

1,770

Feb.

1,720 

1,680 

1,930 

2,430 

3,400

6,530 

5,950 

4,490 

3.690 

3,870

3,590 

3,170 

3,710 

3,950 

3,440

3,130 

3,950 

3,710 

3,150 

2,720

2,450 

2,340 

2,290 

2,360 

3,280

5,380 

12,000 

17,900 

12,400

Month

Oct 

lov 

Dec

C

Jan 

Peb 

Mar 

Apr

Jun 

Jill 

Aug

Sep

»

uary

ust ........ .. . ..

ater year 1939-4

Peak discharge. -

a.m. J 21,200 sec.-f

0. .....................

Mar.

8,620 

7,640 

6,450 

5,660 

5,020

4,480 

4,200 

4,560 

4,200 

3,780

3,440 

3,100 

2,880 

2,680 

2,570

2,880 

2,700 

2,560 

2,520 

2,570

2,630 

2,810 

2,840 

3,160 

3,440

8,430 

9,470 

7,060 

8,550 

11,000 

9,120

Apr.

7,220 

5,860 

5,130 

4,560 

4,120

3,780 

4,200 

4,260 

4,200 

4,100

4,020 

4,140 

4,360 

4,340 

3,960

3,400 

3,360 

3,190 

3,290 

3,140

3,020 

3,120 

3,060 

2,840 

2,630

2,430 

2,310 

2,320 

2,310 

2,520

Seoondf Dot-days

4,394 

4,180 

41,282

363,866

73,599 

130,610 

151,020 

111,190 

75,800 

30,427 

10,536 

5,107 

5,911

644,056

May

2,660 

3,100 

2,700 

2,790 

2,450

2,340 

2,320 

2,290 

2,610 

3,170

3,080 

2,920 

2,880 

2,770 

2,700

2,750 

2,700 

2,570 

2,540 

2,650

2,540 

2,500 

2,480 

2,360 

2,120

1,750 

1,630 

1,620 

1,690 

1,560 

1,560

Hajdjnuoi

189 

154 

5,550

6,340

5,680 

17,900 

11,000 

7,220 

3,170 

1,900 

499 

231 

350

17,900

June

1,900 

1,840 

1,540 

1,410 

1,320

1,250 

1,180 

1,140 

1,030 

1,100

1,200 

1,220 

1,120 

1,040 

1,060

1,040 

988 

952 

916 

825

740 

700 

690 

670 

660

622 

594 

556 

556 

518

July

499 

499 

472 

463 

446

420 

404 

380 

372 

365

365 

358 

342 

342 

328

314 

307 

300 

300 

320

314 

307 

281 

274 

268

262 

262 

255 

243 

237 

237

TIHTi^iintni

120 

130 

136

100

945 

1,680 

2,520 

2,310 

1,560 

518 

237 

133 

133

120

Aug.

231 

231 

219 

213 

207

201 

190 

185 

180 

175

175 

170 

160 

155 

155

150 

146 

145 

141 

137

137 

137 

141 

155 

150

141 

137 

137 

137 

137 

133

Mean

142 

139 

1,332

997

2,374 

4,504 

4,872 

3,706 

2,445 

1,014 

340 

165 

197

1,760

Sept.

133 

137 

165 

165 

165

165 

165 

170 

165 

155

150 

160 

185 

190 

190

190 

195 

243 

274 

237

213 

195 

185 

175 

175

175 

320 

350 

281 

243

Run-off in 

aero-feet

8,720 

8,290 

81,880

721,700

146,000 

259,100 

299,500 

220,500 

150,300 

60,350 

20,900 

10,130 

11,720

1,277,000

Dec. 31 (6 p.m.) 6,760 sec. -ft.} Feb. 6 (2 p.m.) 7,730 sec. -ft.; Peb. 28 (10 

t.; Mar. 26 (6:30 p.m.) 13,900 sec. -ft.
KLAMA.TH RIVER BASIN 361

Trinity River at Lewlston, 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 Lewlston, 0.8 mile downstream from Deadwood Creek. Datum 

of gage Is 1,794.72 feet above mean sea level (general adjustment of 1929).

Drainage area.- 724 square miles.

Records available.- August 1911 to September 1940.

Average discharge.- 29 years, 1,454 second-feet.

Extremes.- Maximum discharge during year, 40,300 second-feet Feb. 28 (gage height, 20.8

 feet), from rating curve extended above 12,500 second-feet; minimum, 114 second-feet 

Oct. 17-21.

1911-40: Maximum discharge, that of Feb. 28, 1940; minimum, 23 second-feet July 

30, 1924.

Remarks.- Records good Oct. 1 to Feb. 28, fair Feb. 

 station for Irrigation, power, and placer mining.

to Sept. 30. Diversions above

Discharge, In second-feet, water year October 1939 to September 1940

Day

1 

S 

3 

4 

5

6

7 

8 

9 

10

11 

IS 

IS 

14 

15

16

17 

18 

19 

SO

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

117 

117 

120 

123 

126

129 

141 

147 

141 

138

135 

129 

126 

120

117

117 

114 

114 

114 

114

114 

117 

117 

117 

117

123 

129 

135 

141 

141 

135

lor.

129 

126 

123 

123 

123

120 

120 

123 

126 

126

129 

189 

129 

129 

132

132 

132 

132 

135 

135

135 

135 

135 

135 

138

150 

170 

162 

150

147

Dec.

141 

141 

141 

144 

144

141 

138 

150 

4,480 

9,890

4,380 

1,840 

1,240 

960 

810

780 

684 

1,240 

980 

880

750 

657 

603 

558 

495

459 

434 

522 

1,460 

2,390 

6,550

Jan.

10,100 

11,600 

7,510 

7,730 

4,180

2,920 

2,410 

2,480 

3,650 

3,820

3,310 

2,620 

2,120 

1,800 

1,600

1,450 

1,340 

1,240 

1,170 

1,110

1,040 

1,000 

1,000 

1,100 

2,470

5,700 

4,000 

2,900 

2,410 

2,330 

2,440

Feb.

2,620 

2,510 

4,710 

5,130 

4,620

8,410 

6,730 

4,580 

3,610 

3,130

2,830 

2,510 

2,440 

2,270 

2,080

1,960 

2,720 

2,650 

2,290 

2,080

1,960 

1,950 

1,910 

2,270 

6,740

10,500 

24,300 

34,500 

19,500

* Month

Oct 

Xov 

Dec

C

Jan 

Fob 

Mar

fa' 

Jm 

Jill 

Au« 

Bep

11

alendar year 193

atar year 1939-4

Mar.

11,000 

8,150 

6,200 

5,230 

4,660

4,130 

3,940 

4,050 

3,840 

3,420

3,040 

2,720 

2,530 

2,350 

2,230

2,220 

2,120 

2,100 

2,180 

2,300

2,580 

3,020 

3,330 

3,840 

4,410

9,290 

9,520 

6,230 

10,400 

18,500 

13,500

Apr.

8,450 

6,310 

5,600 

5,020 

4,480

4,120 

4,820 

5,080 

4,850 

4,760

4,760 

4,960 

5,360 

5,700 

4,960

4,310 

3,990 

4,140 

4,480 

4,310

4,190 

4,390 

4,480 

4,160 

3,940

3,470 

3,280 

3,230 

3,180 

3,320

Secondfoot-days

3.S85 

4,010 

44,182

287 , 990

100,750 

173,510 

163,030 

138,100 

118,500 

45,010 

11,143 

5,002 

5,954

813,075

May

3,900 

5,340 

4,540 

4,210 

3,350

2,900 

2,890 

3,100 

4,100 

5,500

5,390 

5,080 

4,940 

4,590 

4,280

4,260 

4,130 

3,880 

3,830 

4,100

4,010 

3,930 

4,020 

3,770 

3,340

2,670 

2,470 

2,330 

2,380 

2,370 

2,900

Maximum

147 

170 

9,890

9,890

11,600 

34,500 

18,500 

8,450 

5,500 

3,180 

660 

215 

335

34,600

June

3,130 

2,690 

2,220 

2,040 

1,850

,770 

,770 

,770 

,620 

,670

,800 

,800 

1,640 

1,640 

1,640

1,600 

1,540 

1,440 

1,330 

1,220

1,080 

1,000 

970 

920 

910

860 

820 

790 

750 

680

July

660 

600 

560 

530 

470

450 

430 

410 

400 

390

380 

370 

360 

350 

345

338 

325 

318 

313 

308

302 

293 

279 

268 

261

254 

246 

245 

242 

229 

217

Minimum

114 

120 

138

65

1,000 

1,910 

2,100 

3,180 

2,330 

680 

217 

140 

136

114

Aug.

215 

211 

206 

195 

188

182 

178 

176 

171 

167

163 

165 

163 

158 

155

153 

149 

146 

143 

142

142 

142 

141 

145 

149

146 

145 

142 

142 

142 

140

Mean

125 

134 

1,425

789

3,250 

5,983 

5,259 

4,603 

3,823 

1,500 

359 

161 

198

2,9,22

Sept.

137 

136 

137 

145 

162

169 

166 

160 

160 

156

150 

160 

180 

200 

255

218 

195 

205 

253 

242

238 

235 

210 

200 

172

185 

230 

335 

312 

273

Run-off in 

acre-feet

7,710 

7,950 

87,630

571,200

199,800 

344,200 

323,400- 

273,900 

235,000 

89,280 

22,100 

9,920 

11,810

1,613,000

Peak discharge.- Dec. 10 (6:30 

(12 m.) 87,900 sec.-ft.; Feb. 28 

Mar. 30 (4 p.m.) 21,300 sec.-ft.

i.n.) 15,200 sec.-ft.; Jan. 1 (9 p.m.) 16,800 sec.-ft.} Feb. 27 

11:30 a.m.) 40,300 sec.-ft.j Mar. 26 (8 p.m.) 15,800 sec.-ft.;
362 KLAMA.TH RIVER BASIN

Trinity River near Burnt Ranch, Calif.

Location.- Water-stage recorder, lat. 40°47', long. 123°25', in sec. 29, T. 5 N., R. 7 

E., 2 miles upstream from highway bridge at Cedar Flat and 7 miles upstream from 

Burnt Ranch post office. Datum of gage is 1,007.98 feet above mean sea level (general 

adjustment of 1929).

Drainage area.- 1,429 square miles.

Records available.- October 1931 to January 1940 (destroyed by flood of Feb. 28, 1940).

Extremes.- Maximum discharge during year, 80,700 second-feet Feb. 28 (gage height, 33.8 

reet, from floodmartcs), from rating curve extended above 24,000 second-feet on basis 

of logarithmic extension and velocity-area studies; minimum, October to January, 136 

second-feet Oct. 8 (gage height, 2.30 feet).

1931-40: Maximum discharge, that of Feb. 28, 1940; minimum, 82 second-feet Aug. 

31, 1939.

Remarks.- Records excellent. Slight regulation and several small diversions above station 

for mining and irrigation.

Rating table, October to January (gage height, In feet, and discharge, In second-feet)

2.4 

2.8 

3.2 

3.6 

4.0 

4.5

150

226

337

470

630

S.O 

5.5 

6.0 

6.5 

7.0 

8.5

1,215

1,610

2,070

2,600

3,210

5,400

10.0

12.0

14.0

15.3

8,000 

12,100 

16,800 

20,20O

Discharge, In second-feet, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

89

SO

31

dot.

170

175

175

173

184

253

222

182

228

226

222

194

19S

196

186

ISO

180

179

179

177

186

ISO

175

179

188

180

198

215

238

231

228

Hov.

222

217

208

206

204

198

202

206

206

204

IPS

200

202

204

206

200

202

200

202

208

208

206

204

213

211

2S6

250

283

272

253

-

Dec.

248

S43

245

245

258

253

248

300

2,620

10,700

11,200

3,710

2,210

1,620

1,320

1,240

2,840

2,450

1,790

1,520

1,320

1,160

1,050

980

890

824

791

966

3,100

6,650

9,720

Jan.

14,300

20,000

14,400

16,800

9,270

6,110

4,790

4,310

6,600

7,680

6,880

5,620

4,480

3,750

3,240

2,850

2,540

2,340

2,170

-

_

-

-

-

-

_

-

-

..

_

-

Feb.

Month

Calendar- year 1939. .....................

April .....................................

toy.......................................

The period. ................... .. ... ,

Mar. Apr.

Secondfoot-days

6,421

72,711

495,342

_

_

-

-

May

Maximum

283

11,200

11,200

_

_

_

-

-

June July

Minimum

198

243

93

_

_

_

-

-

Aug.

Mean

196

214

2,346

1,357

_

_

_

_

_

-

-

Sept.

Run-off in 

aero-feet

12,740

144,200

982,400

_

_

-

443,000
KLAMATH RIVER BASIN 363

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 downstream from Campbell Creek and 2 

miles southeast of Hoopa. Altitude of gage, 315 feet (from river-profile map).

Drainage area.- 2,840 square miles.

Records available.- October 1931 to September 1940. October 1911 to January 1914 and 

November 1916 to August 1918 at site at Hoopa, 2 miles downstream.

Extremes.- Maximum discharge during year, 124,000 second-feet Feb. 28 (gage height, 31.2 

reetj from rating curve extended above 60,000 second-feet; minimum, 281 second-feet 

Oct. 1 (gage height, 2.82 feet).

1911-14, 1916-18 1931-40: Maximum discharge, that of Feb. 28, 1940; minimum, 162 

second-feet Oct. 4, 1931.

Remarks.- Records good. Small diversions above station for mining and irrigation.

Discharge, In second-feet, water year October 1959 to September 1940

Day

1

2

3

4

S

6

7

8

9

10

11

12

IS

14

IS

16

17

18

19

20

m

23

24

25

27

28

m

30

SI

Oct.

28S

295

303

303

326

366

406

378

343

381

378

363

329

337

326

321

313

313

310

316

316

323

321

354

357

375

413

410

416

406

400

HOT.

390

3S4

375

369

369

366

363

363

372

366

369

357

366

363

366

360

360

360

354

351

357

354

354

357

366

384

410

433

443

419

Dec.

413

406

403

403

406

410

406

5S1

2,980

13,800

15,500

6,100

3,700

2,720

2,250

2,230

4,560

4,490

3,260

2,900

2,520

2,200

1,990

1,830

1,690

1,540

1,470

2,620

6,800

14,400

20,700

Jan.

25,300

31,000

26,100

32,300

22,400

14,200

10,700

9,550

16,800

22,200

17,800

13,900

11,000

9,080

7,800

6,320

6,100

5,550

5,100

4,680

4,300

4,100

3,940

3,900

4,560

18,000

17,800

12,300

10,200

9.000

8,400

Feb.

e.iso

7.S60

3,920

17,100

20,100

24,100

29,000

21,400

16,500

14,000

12,500

11,100

11,800

14,500

13,200

11,600

18,300

19,000

14,900

,12,600

11,200

10,600

10,400

10,300

15,400

26,600

64,600

110,000

86,700

_

-

Month

December. .................................

April.....................................

May.......................................

Water year 1939-40. .....................

Mar.

55,200

44,800

36,600

31,800

28,300

25,200

22,300

20,500

IS, 700

16,700

14,700

12,900

11,600

10,700

10,100

10,100

9,550

8,920

8,520

8,300

8,280

S,450

S.680

3,920

9,750

16.SOO

32,100

24,600

29,700

51,100

46,800

Apr.

35,200

26,100

21,SOO

19,000

16,600

15,400

14,500

15,100

13,900

13,200

12,600

12,300

12,300

12,500

11,900

10-, 600

9,930

9,500

9,620

9,500

9,050

S.650

8,960

3,600

8,220

7,750

7,050

6,700

6,580

6.5SO

-

Seoondfoot-days

125,698

1,003,697

382,110

207,250

15,409

2,589,973

May

6,700

7.6SO

8,380

8,400

8,050

7.0SO

6,580

6,390

6.5SO

7,800

8,480

8,180

8,050

7,680

7,350

7,200

7,100

6,730

6,440

6,510

6,660

6,440

6,490

6,320

5,950

5,220

4,660

4,440

4,350

4,350

4,970

Maximum

20,700

26,300

35,200

8,4SO

665

110,000

Juno

5,460

5,970

4,990

4,440

4,160

3,940

3,7SO

3,660

3,510

3,3SO

3,450

3,600

3,510

3,320

3,220

3,240

3,150

3,070

2.S70

2,680

2,470

2,260

2,150

2,110

2,060

1,990

1,860

1,750

1,680

1,630

-

July

1,550

1,540

1,480

al,400

1,310

1,280

1,200

1,130

1,070

1,040

1,010

956

951

940

925

SSO

850

635

S20

S60

890

850

805

767

731

704

691

67S

652

652

631

Minimum

403

214

3 900

6,580

4,350

354

288

Aug.

614

606

590

574

563

532

514

504

493

480

466

460

444

437

437

431

425

413

404

398

392

389

389

395

398

398

395

386

SSO

377

368

Mean

4,055

2,750

20 990

12,740

6,635

514

7,076

Sept.

357

354

380

380

395

401

440

490

466

456

434

444

473

480

574

665

652

665

648

610

602

57S

544

525

504

500

566

616

614

594

~

Run-off in 

acre-feet

249,300

1,991,000

757,900

411,100 ie9 100

30,560

5,137,000

Peak discharge.- Jan. 2 (10 a.m.) 33,400 sec.-ft.; Jan. 4 (11 a.m.) 36,200 sec.-ft.; Feb. 7 

(3 a.m.) 32,200 sec.-ft.; Feb. 28 (4 p.m.) 124,000 sec.-ft.; Mar. 27 (6 a.m.) 35,400 sec.-ft.; 

30 (12 m.) 55,100 sec.-ft.

a Ho gage-height record; discharge Interpolated.
364 SMITH RIVER BASIN

Smith River near Crescent City, Calif.

Location.- Water-stage recorder, lat. 41°47', long. 124°04', in SWi sec. 10, T. 16 N., R. 

1 fc., 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 1940.

Extremes.- Maximum discharge during year, 37,200 second-feet Feb. 28 (gage height, 21.22 

reet), from rating curve extended above 23,500 second-feet; minimum, 183 second-feet 

Oct. 1 (gage height, 3.48 feet).

1931-40: 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 period of fragmentary gage-height record, 

which are fair. No diversion or regulation.

Rating table, water year 1939-40 (gage height, in feet, and discharge, in seoond-feet)

3.4 164 5.5 865 9.0 3,940 14.0 13,400 

3.7 236 6.0 1,110 10.0 5,280 15.0 16,040 

4.0 314 6.5 1,430 11.0 6,900 16.0 18,900 

4.5 465 7.0 1,830 12.0 8,850 18.0 25,000 

5.0 650 8.0 2,780 13.0 11,060 20.0 32,300

Discharge, in second-feet, water year October 1939 to September 1940

Day

1 

2

a

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

186 

193 

193 

190 

888

334 

265 

231 

214 

207

202 

195 

193 

190 

188

190 

193 

805 

205 

198

193 

190 

193 

262 

288

275 

465 

362 

272 

241 

226

HOT.

217 

214 

214 

214 

210

205 

202 

205 

205 

202

200 

198 

202 

231 

234

214 

210 

205 

198 

193

190 

190 

190 

188 

190

212 

214 

205 

195 

198

Dec.

214 

231 

234 

217 

212

231 

246 

1,580 

8,480 

19,500

8,620 

3,230 

2,260 

2,470 

2,860

8,580 

13,400 

5,490 

3,960 

6,000

4,990 

3,620 

2,800 

2,840 

1,870

1,640 

1,460 

5,460 

11,200 

18,800 

15,600

Jan.

14,900 

14,000 

10,900 

15,800 

12,600

8,510 

6,330 

7,840 

f 21, 000 

1 18, 000

flO.OOO 

f7,500 

f5,800 

f4,800 

f4,000

f3,400 

f3,000 

f2,700 

f2,400 

f2,200

8,010 

1,860 

1,880 

1,760 

8,060

8,470 

9,580 

5,440 

4,230 

3,560 

3,100

Feb.

8,740 

2,490 

4,360 

11,700 

11,400

81,500 

18,100 

11,600 

8,150 

9,530

8,590 

6,700 

15,200 

15,000 

11,500

9,360 

20,800 

13,400 

9,360 

7,180

5,940 

5,160 

4,680 

6,960 

9,890

18,600 

25,600 

31,800 

24,900

Month

Dot 

Hov

Dec

C

Jan 

Fell 

Mar 

Apr

Jmx 

Jul 

Aug 

8ep

«

ember . « . .

alondar year 1939......................

ater year 1939-4

Mar.

17,500 

18,600 

12,300 

9,160 

7,280

6,000 

5,460 

6,570 

5,550 

4,840

4,270 

3,800 

3,440 

3,140 

3,020

3,820 

3,420 

3,090 

2,840 

2,640

2,510 

2,400 

2,260 

2,420 

2,270

18,500 

82,200 

14,700 

18,900 

16,200 

11,800

Apr.

8 

6 

5 

5 

4

4 

4 

4 

5 

4

4 

3 

3 

3 

2

2 

2 

2 

2 

2

1 

1 

1 

1 

1

1 

1 

1 

1 

2

Seoondfoot-days

7,227 

6,145 

149,695

775,149

219,630 

352,190 

240,900 

101,760 

64,955 

20,269 

11,521 

7,728 

9,063

1,191,083

590 

640 

950 

520 

910

370 

710 

930 

580 

980

260 

810 

440 

120 

820

610 

410 

240 

130

010

880 

780 

710 

640 

610

530 

450 

500 

540 

090

May

2,130 

2,420 

2,500 

8,120 

6,530

4,410 

3,530 

2,980 

2,630 

2,360

2,140 

1,960 

1,820 

1,690 

1,600

1,500 

1,420 

1,340 

1,280 

1,230

1,170 

1,130 

1,100 

1,070 

1,040

1,000 

980 

955 

935 

945 

1,040

Ifo Tritium

465 

234 

19,500

29,500

21,000 

31,800 

22,200 

8,590 

8,120 

1,210 

458 

306 

770

31,800

June

1,210 

1,060 

950 

888 

847

820 

798 

770 

752 

730

710 

690 

670 

654 

642

614 

606 

598 

586 

578

563 

546 

535 

528 

514

504 

490 

479 

472 

465

July

458 

448 

437 

430 

418

409 

403 

400 

397 

394

391 

391 

388 

376 

367

364 

370 

364 

356 

348

356 

348 

336 

328 

322

320 

334 

331 

320 

311 

306

Aug.

306 

304 

293 

283 

278

272 

270 

265 

262

262

259 

257 

254 

246 

241

239 

239 

239 

236 

239

239 

234 

229 

224 

222

222 

222 

222 

224 

224 

222

n^yi^Mtinii Mean

186 233 

188 205 

212 4,829

169 2,124

1,760 7,085 

2,490 12,140 

2,260 7,771 

1,450 3,392 

935 2,095 

465 676 

306 372 

222 249 

819 302

186 3,854

Sept.

219 

226 

254 

265 

252

239 

234 

254 

249 

839

234 

236 

314 

309 

283

293 

267 

314 

353 

280

257 

244 

236 

234 

234

254 

770 

762 

484 

334

Run-off in 

acre-feet

14,330 

12,190 

296,900

1,538,000

435,800 

698,600 

477,800 

201,800 

128,800 

40,200 

22,850 

15,330 

17,980

2,362,000

Peak discharge.- Feb. 28 (10 a.m.) 37,200 sec.-ft.; Mar. 26 (5 p.m.) 33,200 see.-ft. 

f Fragmentary gage-height record; discharge computed from partly estimated gage heights and record for Eel River at Scotia.
MISCELLANEOUS DISCHARGE MEASUREMENTS 365

Measurements of stream flow in the Pacific slope basins in California at points other 

than regular gaging stations for the year ending September 30, 1940, are listed in the 

following table.

STREAMS SOOTH OF SAN FRANCISCO BAY 

Cottonwood Creek at Morena Dam spillway, Calif.

Date

June 14

Discharge 

(sec. -ft.)

3.6

Date

July 19

Discharge 

(sec. -ft.)

2.2

Date

Aug. 14

Discharge 

(sec. -ft.)

3.4

Date

Sept. 11

Discharge 

(sec. -ft.)

2.8

Cottonwood Creek at weir, half a mile below Morena Dam, Calif.

June 14 | 5.1 || July 19 4.2 [| Aug. 14 | 4.5 || Sept. 11 4.5

Tecate Creek at confluence with Cottonwood Creek, near Dulzura, Calif.

* Apr. 17, 2.3 second-feet

San Luls Rey River Just above Pala Indian Reservation diversion, Calif.

Dec. 4 

Hay 3 

15 

22

11.0 

13.2 

9.3 

9.8

Hay 29 

June 5 

12 

20

8.4 

6.9 

6.S 

6.3

June 26 

July 10 

26

31

6.1 

4.4 

4.0 

4.2

Aug. 7 4.2

Moreno ditch 100 feet below Intake at Pala, Calif.

Hay 15 

22

2.2 

2.4

Hay 29

June 5

2.0 

1.9

June 12 2.1 July 10 0.75

San Luls Rey River at crossing at Eons all, Calif.

Oct. 27 

Nov. 13 

22 

Dec. 4 

12 

27

4.9 

7.4 

6.0 

17.9 

15.1 

18.9

Jan. 4 

12 

31 

Feb. 12 

19 

Mar. 4

24.6 

71 2S.2 

47.2 

34.7 

3S.3

Mar. 11 

25 

Apr. 8 

23 

May 6 

20

29.3 

20.8 

44.7 

16.9 

12.1 

5.1

June 3 

17 

26 

July 10

1.9 

1.2 

.50 

.37

San Luls Rey River at Rancho Guajomita, Calif.

Oct. 27 

Nov. 13 

22 

Dec. 4 

12

3.7 

7.9 

7.7 

11.3 

12.5

Dec. 27 

Jan. 4 

12 

31 

Feb. 12

17.7 

20.2 

69 31.0 ' 

54

Feb. 19 

Mar. 4

11 

25 

Apr. 8

37.7 

43.7 

34.6 

21.8 

48.2

Apr. 23 

May 6 

20 

June 3 

17

16.9 

11.6 

2.6 

1.1 

a. 2

a Estimated.

San Luls Rey River at highway bridge at San Luls Rey, Calif. 

Hay 13, 0.91 second-feet

Arroyo Seco at Nigger Canyon, near Temecula, Calif.

Arroyo San Hateo near San Clemente, Calif.

Oct. 2

6

12

16

18

20

24

26

30

Mov. 21

27

29

Dec. 6

11

27

Jan. 3

6

11

17

24

26

30

Feb. 5

8

0.68

.62

.64

.63

.61

.66

.68

.25

.33

.35

.48

.50

.47

.61

.59

.61

.79

1.4

3.0

6.0

3.3

1.9

132

43.0

Feb. 12

15

19

21

23

26

28

Mar. 1

4

6

8

11

14

18

21

25

27

Apr. 1

3

5 .

10

15

18

22

26.3.

22.7

11.8

11.3

11.4

61

27.1

25.7

15.6

14.0

11.6

9.4

7.4

6.4

5.6

3.9

4.4

156

34.5

20.6

10.2

5.8

4.5

4.3

Apr. 25

29

May 2

8

10

13

16

20

23

27

30

June 3

6

10

13

19

21

24

27

July 1

5

8

11

15

3.1

5.9

3.8

2.3

2.1

1.7

1.6

1.6

1.3

1.2

1.1

1.0

1.0

.94

.90

.79

.78

.99

.82

.85

.79

.70

.72

.73

July 25

29

Aug. 1

5

8

12

15

19

22

26

29

Sept. 3

6

11

13

16

18

20

23

26

30

0.78

.70

.69

.71

.73

.62

.59

.50

.61

.58

.68

.63

.54

.63

.64

.58

.57

.60

.59

.73

.68
366 MISCELLANEOUS DISCHARGE MEASUREMENTS

STREAM? SOOTH OF SAN FRANCISCO BAY CONTINUED 

San Juan Creek above Caplstrano diversion near San Juan Capistrano, Calif.

Date

June 27

Discharge 

(sec. -ft.)

5.3

Date

July 15

Discharge 

(sec. -ft.)

4.0

Date

July 25

Discharge 

(sec. -ft.)

3.1

Date

July 29

Discharge 

(sec. -ft.)

3.8

Santa Ana River at Banner Avenue, near Corona, Calif.

Dec. 1

4

8

11

15

18

22

26

58.1

36.2

40.8

38.1

37.7

41.6

37.9

38.6

Dec. 29

' Jan. 2

5

12

19

26

31

Feb. 9

41.1

44.8

50

67

55

55

48.9

52

Feb. 16

23

liar. 1

8

15

22

25

29

46.4

44.9

50

45.5

44.4

40.7

37.3

40.8

Apr. 5

9

12

15

19

22

26

29

49.9

46.3

44.4

38.7

32.4

33.5

47.1

44.5

Santa Ana River at Auburndale Bridge, near Corona, Calif.

Dec. 1

4

8

11

15

18

22

26

61

61

58

64

58

65

60

66

Dec. 29

Jan. 2

5

12

19

26

31

Feb. 9

64

68

77

87

81

76

74

80

Feb. 16

23

liar. 1

8

15

22

25

29

70

68

76

71

69

68

61

63

Apr. 5

8

12

15

19

22

26

29

73

66

64

65

53

60

69

69

Santa Ana River at Atchison, Topeka & Santa. Fe Railway Bridge, near Frado, Calif.

Dec. 1

4

6

8

11

13

15

73

87

103

76

95

93

80

Dec. 18

20

22

26

26

29

Jan. 2

89

98

74

94

99,

85

97

Jan. 3

5

12

19

26

31

Feb. 9

123

98

135

110

103

94

104

Feb. 16

23

liar. 1

8

15

99

94

99

96

81

Hote.- On March 19, 1940, a gaging station was installed at this location and named "Santa Ana 

River below Frado Dam, near Prado, Calif." (see page 43).

Santa Ana River at Yorba Bridge, near Yorba, Calif.

10 

19 

26 

Feb. 1

171 

104 

103 

125

8 

13 

16 

19

111 

90 

77 

61

4 

8 

15 

22

39.6 

42.0 

20.4 

19.3

19 

26 

May 3

13.2 

10.0 

3.0

Santa Ana River at Jefferson Street Bridge, near Atwood, Calif.

Jan. 9 

10 

Feb. 2 

8

175 

56 

182 

31.2

Feb. 13 

16 

23 

Mar. 1

15.4 

17.8 

0 

9.1

Mar. 4 

8 

15 

29

1.3 

1.4 

1.9 

a. 2

Apr. 2 

5 

19 

26

82 

3.8 

0 

0

a Estimated. 

Santa Ana River at Anahelm-Olive Bridge, near Olive, Calif.

Jan. 9 

10 

26 

Feb. 1 

2

113 

27.0 

20.0 

20.1 

156

Feb. 5 

8 

13 

16 

19

39.1 

8.8 

0 

3.2 

.40

Feb. 23 

Mar. 1 

8 

15 

29

a Estimated. 

Santa Ana River at Chapman Avenue Bridge, ne

Jan. 9 

10 

26 

Feb. 1

69 

5.2 

4.8 

15.0

Feb. 2 

5 

8 

13

77 

5.6 

2.7 

0

Feb. 16 

19 

23 

Mar. 29

0 

a. 10 

0 

a. 10 

0

Apr. 2 

5 

19 

26 

May 3

33.7 

0 

0 

0 

0

ar Orange, Calif.

0.45 || Apr. 2 

0 II 5 

0 19 

0 || 26

a Estimated. 

Santa Ana River at Seventeenth Street Bridge, at Santa Ana,

Jan. 9 

10

58 || Feb. 8- 

6.9 || 13

0.90 

.17

Feb. 16 

19

3.0 

0

Calif.

Apr. 5 

19

5.5 

a.l 

a. 5 

0

0 

0

Santa Ana River at Talbert Avenue, near Talbert, Calif.

Jan. 26 0.96 || Feb. 2

a Estimated. 

Mill

Jan. 19 6.2 || May 31

80 || Feb. 8 aO.2 || Feb. 13 | 0

Creek near Craftonvllle, Calif.

II II
MISCELLANEOUS DISCHARGE MEASUREMENTS 

STREAMS SOUTH OF SAN FRANCISCO BAY CONTINUED 

Lone Pine Creek near Keenbrook, Calif.

367

HOT. 14 

Dec. 27 

Jan. 30 

Feb. 23 

Mar. 13 

27 

Apr. 17 

30

2.0 

1.5 

1.8 

1.8 

2.1 

2.1 

2.0 

1.2

31 

June 5 

10 

13 

17 

20 

24 

27

1.4 

1.1 

1.2 

1.5 

1.3 

1.2 

1.4 

1.3

15 

22 

23 

29 

Aug. 1 

5 

6 

12

1.3 

1.2 

1.2 

1.2 

1.2 

1.1 

1.2 

1.1

26 

30 

Sept. 3 

5 

9 

26 

30

1.1 

1.1 

1.1 

1.0 

.99 

.96 

1.0

Day Creek diversion near Etlwanda, Calif.

Feb. 28 

Apr. 2

4.0 

3.1

Apr. 17 

May 6

4.4 || May 22 

4.1 June 25

3.8 

2.9

Sept. 9 

20

2.5 

2.4

Santa Ynez River below Mono Creek, near Santa Barbara, Calif.

Jan. 15 

25 

Feb. 2 

9

5.6 

13.1 

38.1 

19.6

Feb. 16 

23 

May 9 

16

13.7 

43.8 

4.8 

3.2

May 23 

29 

June 6 

13

3.1 

2.2 

1.6 

.34

June 20 0.13

Santa Ynez River at Solvang, Calif.

Dec. 11 

20

7.9 li May 15

8.5 ||

8.4 || May 21 6.6 || May 26 6.2

Santa Ynez River at A Street Bridge, near Lompoc, Calif.

May 3 22.2 || June 3 0.47 || II

Santa Ynez River at E Street Bridge, near Lompoc, Calif.

May 3 22.2 || June 3 0.32 || II

Santa Ynez River at Pine Canyon Bridge, near Lompoc, Calif.

May 3 21.5 || June 3 0.58 || II

Santa Ynez River at Southern Pacific Railway pumping plant, near Surf, Calif.

May 3 18.3 | June 3 0.54 || II

Gldney Creek at confluence with Santa Ynez River, near Santa Barbara, Calif.

Jan. 15 

25 

Feb. 2

0.37 

.73 

' 1.8

Feb. 9 

16 

23

0.67 

.40 

1.0

May 9

16

0.08 

.07

May 23 0.06

Hot Springs at confluence with Santa Ynez River, near Santa Barbara, Calif.

Oct. 12 

Dec. 28

0.27 II Jan. 25 

.37 || Feb. 23

0.65 || Mar. 21 

1.1 || Apr. 18

0.44 II May 23 

.37 || Sept. 26

0.28 

.17

Santa Agueda Creek at confluence with Santa Ynez River, near Santa Ynez, Calif.

Oct. 24 

Dec. 11 

Jan. 12 

29

0.10 

.08 

2.1 

.34

Feb. 15 

20 

Mar. 19

Apr. 1

0.28 

.36 

.27 

12.2

Apr. 17 

May 21 

June 25 

July 24

0.30 

.16 

.12 

.09

Aug. 27 0

Santa Cota Creek at confluence with Santa Ynez River, near Santa Ynez, Calif.

Oct. 24 

Dec. 20 

Jan. 29

3.0 

2.3 

3.4

Feb. 20 

Mar. 19 

Apr. 17

3.5 

2.5 

2.2

May 21

June 25 

July 24

1.7 

1.4 

2.9

Aug. 27 

Sept. 24

1.7 

2.7

Alamo Pintado Creek 1.1 miles above confluence with Santa Ynez River, near Solvang, Calif.

Oct. 24 

Dec. 20 

Jan. 29

0.42 

.31 

.35

Feb. 20 

Mar. 19 

Apr. 17

0.39 

.45 

.29

May 21 

June 25 

July 24

0.27 

.18 

.20

Aug. 27 

Sept. 24

0.18 

.22

Allsal Creek at confluence with Santa Ynez River, near Solvang, Calif.

Oct. 24 

Dec. 20 

Jan. 29

0 

0 

.63

Feb. 20 

Mar. 19 

Apr. 17

0.91 

3.4 

1.8

May 21 

June 25 

July 24

0.11 

.07 

.06

Aug. 27 

Sept. 24

0.04 

0

Nojoqul Creek at confluence with Santa Ynez River, near Buellton, Calif.

Jan. 29 

Feb. 20

0.81 || Mar. 19 

.98 || Apr. 16

1.5 || May 21 

1.0 || Aug. 27

0.06 || Sept. 24

o II

0
368 MISCELLANEOUS DISCHARGE MEASUREMENTS

STREAMS SOUTH OF SAN FRANCISCO BAY CONTINUED 

Salslpuedes Creek 0.9 mile above confluence with Santa Ynez River, near Lompoc, Calif.

Date

Oct. 16 

HOT. 29 

Dec. 18

Discharge 

(sec. -ft.)

0.28 

.94 

1.2

Date

Jan. 26 

Feb. 28 

Mar. 16

Discharge 

(sec. -ft.)

2.6 

3.6 

1.6

Date

Apr. 16 

May 24 

June 21

Discharge 

(sec. -ft.)

1.6 

1.0 

.31

Date

July 19 

Sept. 24

Discharge 

(sec. -ft.)

0.19 

.05

Alamo Creek at confluence with Guyana River, near Santa Maria, Calif.

Oct. 24 

Dec. 18

1.4 

2.0

Feb. 15 

Mar. 29

1.9 

2.2

June 6 

July 11

1.7 

1.3

Sept . 13 1.4

Pajaro River at gaging station about three-quarters of a mile upstream from bridge on 

U. S. Highway 101 at Sargent, Calif."

Jan. 13 

16 

19 

22 

Feb. 8

243 

190 

98 

67 

387

Feb. 17 

23 

26 

26 

Mar. 2

747 

393 

813 

973 

1,940

Mar. 4 

4 

5 

6 

8

914 

902 

724 

634 

434

Mar. 16

Apr. 1 

16 

May 8 

June 10

166 

1,790 

162 

49.2 

16.6

b Results 61' discharge measurements furnished by Uorps of Knglneers, u. b. Army. 

Branolforte Creek at gaging station at Market Street Bridge in Santa Cruz, Calif. b

Jan. 8 

12 

18 

26 

27

231 H Jan. 31 

64 Feb. 1 

11.4 1 

463 1 

101 || Feb. 3

42.2 

295 

165 

134 

1,100

Feb. 3 

S 

S 

25 

28

791 || Mar. 6 

572 30 

493 30 

582 July 3 

455 U

30.1 

2,060 

1,620 

2.0

b Results of discharge measurements furnished by Corps of Engineers, U. S. Army. 

Laguna Creek at gaging station at highway bridge In Coast, Calif.

Oct. 2 

Jan. 28 

Mar. 27

0.1 

23.0 

29.8

Apr. 2 

30 

May 17

53 

11.2 

7.1

June 5 

July 2 

17

6.4 

1.9

1.4

July 31 

Aug. 14

0.6 

.2

SAN JOAQUIN RIVER BASIN

Chinquapin Creek near camp 62, near Florence Lake, Calif. 0

May 26, 15.6 second-feet

c Results of discharge measurements furnished by Southern California Edison Co. 

San Joaquln River at Turner ranch bridge, about 10 miles northeast of Los Banos, Calif. d

 i n i n l n I 

Apr. 18 601 || June 19 _____806 ________^^ 

d Results of discharge measurements furnished by State Engineer.

San Joaquln River at Fremont Ford Bridge, 5 miles west of Stevlnson, Calif. de

Apr. 18 2,460 May 31 3,600 3,300

d Results of discharge measurements furnished by State Engineer, 

e For total flow add flow In Mud Slough.

________ San Joaquln River at Laird Slough Bridge, 1 mile east of Grayson, Calif. d

Apr. 16 6,010 11 May 28 8,820 .5,400

d Results of discharge measurements furnished by State Engineer. 

San Joaquln River at Hetch Hetchy aqueduct crossing, about 5 miles southeast of Vernalls, Calif. d

Apr. 20 8.860 |May 28 14,400 8,880

d Results of discharge measurements furnished by State Engineer.

Mud Slough at Gustlne-Stevlnson-hlghway crossing, near Gustlne, Calif, , d

Apr. 18 May 31

d Results of discharge measurements furnished by State Engineer.

Middle Fork of Mud Slough at Gustlne-Stevlnson highway crossing, near Gustlne, Callf. d

Apr. 18 | May 51

d Results of discharge measurements furnished by State Engineer.

North Fork of Mud Slough at Gustlne-Stevlnson highway crossing, near Gustlne, Calif. d

Apr. 18 [May 31 | 1,380 [June 19 641

 i u - i : u I 

d Results of discharge measurements furnished by State Engineer.

MERCED RIVER BASIN 

Merced River at Yosemlte Valley Railroad crossing, about 4 miles southwest of Snelllng, Callf.d

3,180 ||May 30 2,160 June 20

d Results of discharge measurements furnished by State Engineer.

Merced River at mouth, 300 feet upstream from Hills Ferry bridge and 3j miles 

northeast of Newman, Callf. d

Apr. 18 3,270 May 31 2,320 1,020
MISCELLANEOUS DISCHARGE MEASUREMENTS 

TUOLUMNE RIVER BASIN

369

Date

Apr. 17

Discharge 

(sec. -ft.)

2,110

Date

Hay 29

Discharge 

(sec. -ft.)

6,220

Date

June 20

Discharge 

(sec. -ft.)

1,550

Date

Discharge 

(sec. -ft.)

d Results of discharge measurements furnished by State Engineer.

Tuolumne River at Hickman Bridge, at Hickman, Calif.^

Apr. 19 \ 2,280 |[Hay 29 6,660 | June 20 [ 1,910

d Results of discharge measurements furnished by State Engineer.

Tuolumne River at bridge on U. S. Highway 99 at Modesto, Calif. d

Apr. 16 3,620 ||Hay 30 6,400 | June 19 | 2,960 [[

d Results of discharge measurements furnished by State Engineer.

Tuolumne River 3 miles upstream from mouth, at Tuolumne City, Calif . d

Apr. 16 3,780 May 29 3,500

d Results of discharge measurements furnished by State Engineer. 

__________________________Dry Creek near Modesto, Calif. d

Apr. 16 66 Hay 30 65 June 21

d Results of discharge measurements furnished by State Engineer.

STANISLAUS RIVER BASIN 

Stanislaus River at Orange Blossom Bridge, 5 miles east of Oakdale, Calif. d

Apr. 16 3,250 ay 30 2,470

d Results of discharge measurements furnished by State Engineer. 

____________Stanislaus River at bridge on U. S. Highway 99 at Rlpon, Calif. d

Apr. 15 3,830 Hay 31 3,010

d Results of discharge measurements furnished by State Engineer.

Stanislaus River at Hatmark ranch, about 4 miles southwest of Ripon, Calif.

Apr. 19 3,300 Hay 28 4,760 June 18 1,610

d Results of discharge measurements furnished by State Engineer.

GOOSE LAKE BASIN

Cottonwood Creek above Cottonwood Reservoir, in SW? sec. 18, T. 38 S., R. 19 E., dreg. 

June 10, 13.6 second-feet

Cottonwood Creek at Elamath Falls highway crossing, in NEj sec. 21, T. 39 S., R. 19 E., Oreg. 

June 10, 15.8 second-feet

SACRAMENTO RIVER BASIN 

Sacramento River at Sacramento, Calif. d _____________________

65.300 ||jan. 29 60,100 Feb. 28 | 77,300

d Results of discharge measurements furnished by State Engineer. '

Stillwater Creek at Anderson-Vlola highway crossing, near Anderson, Calif.

Jan. 5 |

June 25 |

May 7 |

538 lljan. 6

Grindstone Creek at

7.1

Yuba

4,530

II

River

||Hay

at Simpsons

27 3,

27S

gaging

Lane

650

|| Jan. 15

station near

||

Bridge, near

|| June 17

1 131 ||

Elk Creek, Calif.

1

farysvlll

1

II

e, Calif. d

577 ||

1

1

1 d Results of discharge measurements furnished by State Engineer.

Plum Creek at former gaging station near Riverton, Calif.

Leakage through Sacramento bypass gates near Sacramento, Calif. d

d Results of discharge measurements furnished by State Engineer.
370 MISCELLANEOUS DISCHARSE MEASUREMENTS

SACRAMENTO RIVER BASIN CONTINUED 

Yolo bypass at Sacramento-Woodland highway crossing, near Woodland, Calif.

Date

Jan. 13

Discharge 

(sec. -ft.)

42,200

Date

Jan. 16

Discharge 

(sec. -ft.)

8,210

Date

Jan. 29

Discharge 

(sec. -ft.)

16,900

Date

Discharge 

(sec. -ft.)

d Results of discharge measurements furnished by State Engineer.

Knights Landing Ridge cut at Knights Landing, Calif.

2,060 Jan. 29 1,930 N Feb - 2,190

d Results of discharge measurements furnished by State Engineer.

NAPA RIVER BASIN

Dry Creek at gaging station a quarter of a mile upstream from bridge on State Highway 

3 miles south of Yountvllle, Calif .*>

Jan. 18

25

26

31

Feb. 3

5

14.1

42.4

249

34.9

95

42.9

Feb. 14

17

27

Mar. 4

23

127

164

1,870

90

13.1

Mar. 26

27

30

30

Apr. 1

16.5

68

1,270

1,510

263

Apr. 22

Hay 10

21

29

June 13

14.2

5.3

3.6

2.8

.3

b Results of discharge measurements furnished by Corps of Engineers, U. S. Army.

RUSSIAN RIVER BASIN

Mark West Creek at gaging station at bridge on U. S. Highway 101 4 miles southeast 

of Windsor, Calif. 6

Feb. 24

26

Bar. 16

26

27

29

50

2,600

27.3

439

221

838

Mar. 29

30

31

Apr. 1

18

26

3,270

3,190

823

397

21.2

50

Bay 9

20

28

June 12

July 5

10.6

5.4

4.9

.4

1.5

July 19

31

Aug. 15

Sept. 6

21

1.1

.7

.5

.7

.6
INDEX

Page 

"A" canal at Klamath Falls, Oreg....... 353

Accuracy of data and computed results.. 3-4 

Acre-foot, definition of............... 1

Agencies other than Geological Survey,

records collected by............. 9-10

Alameda Creek near Niles, Calif........ 158

Alamitos Creek near Edenvale, Calif.... 153

Alamo Creek, Calif., discharge

measurements of.................. 368

Alamo Pintado Creek, Calif., discharge

measurements of.................. 367

Alder Creek near Whitehall, Calif...... 320

Allsal Creek, Calif., discharge

measurements of.................. 367

Aliso Creek at El Toro, Calif.......... 36

American River at Pair Oaks, Calif..... 307

at Sacramento, Calif................. 308

Middle Fork of, near Auburn, Calif... 309 

North Fork of, at Rattlesnake

Bridge, Calif.................... 306

near Coifax, Calif................. 305

Silver Fork of South Pork of, near

Kyburz, Calif.................... 317

South Fork of, at Coloma, Calif...... 312

near Camino, Calif................. 311

near Kyburz, Calif................. 310

American River Basin, Calif., gagingstation records in..............305-324

American River flume near Camino,

Calif............................ 324

Antler, Calif., Sacramento River at.... 246

Arlington, Calif., Santa Ana River

near............................. 40

Arrowhead Springs, Calif., Strawberry

Creek near....................... 55

Waterman Canyon Creek near........... 56

Arroyo Grande at Arroyo Grande, Calif.. 129 

Arroyo San Mateo, Calif., discharge

measurements of.................. 365

Arroyo Seco (Los Angeles River Basin)

near Pasadena, Calif............. 104

Arroyo Seco (Salinas River Basin) near

Soledad, Calif................... 137

Arroyo Seco (Santa Margarita River

Basin), discharge measurements of 365 

Artesia, Calif., Coyote Creek near..... 93

Ashland, Oreg., Keene Creek canal near. 358 

Auburn, Calif., Middle Fork of American

River near....................... 309

Avery, Calif., Middle Fork of

Stanislaus River near............ 217

North Fork of Stanislaus River near.. 220 

Azusa, Calif., Rogers Creek near....... 86

San Gabriel River near............... 82

Baird, Calif., McCloud River at........ 262

Bakersfield, Calif., Kern River near... 162 

Ballona Creek near Culver City, Calif.. Ill 

Bear Creek near Vermilion Valley,

Calif............................ 185

Bear River (Feather River Basin) near

Wheatland, Calif................. 303

Bear River (Mokelumne River Basin) at

Pardoe Camp, Calif............... 236

Bear River canal (Feather River Basin)

near Colfax, Calif............... 304

Bidwell Bar, Calif., Middle Fork of

Feather River at................. 287

Big Bar, Calif., North Fork of Feather

River at......................... 273

Big Bend, Calif., Pit River at......... 257

Big Creek, Calif., Florence Lake near.. 181 

Huntington Lake near................. 187

San Joaquin River above.............. 177

Shaver Lake near..................... 190

Big Creek below Huntington Lake, Calif. 188 

Big Trees, Calif., San Lorenzo River at 143 

Bonsall, Calif., San Luis Key River

near............................. 26

Borel canal at Tllley Creek, Calif..... 164

Page 

Boulder Creek at Cuyamaca Reservoir,

near Julian, Calif............... 21

Bowman Lake, Calif., Canyon Creek

below............................ 300

Bowman Lake near Granitevllle, Calif... 299 

Bowman-Spaulding canal at intake,

Calif............................ 301

Branciforte Creek, Calif., discharge

measurements of.................. 368

Brea Creek at Pullerton, Calif......... 94

Bridgeville, Calif., Van Duzen River at 343 

Buchanan dam site, Calif., Chowchilla

River at......................... 194

Buck Meadows, Calif., Middle Tuolumne

River near....................... 212

Bucks Creek Reservoir near Bucks ranch,

Calif............................ 281

Burnt Ranch, Calif., Trinity River near 362 

Butt Creek above tunnel No. 1, near

Prattvllle, Calif................ 276

Butt Creek below tunnel No. 1, near

Prattville, Calif...............277-278

Butte City, Calif., Sacramento River at 250 

Butte Creek near Chico, Calif.......... 270

Cache Creek at Yolo, Calif............. 326

North Fork of, near Lower Lake,

Calif............................ 327

Cache Creek Basin, Calif., gaglngstation records in..............325-327

Cajon Creek near Keenbrook, Calif...... 66

Calabasas, Calif., Malibu Creek near... 113 

Calaveras River at Jenny Lind, Calif... 226 

Calaveras River Basin, Calif., gagingstation records In..............226-227

Camino, Calif., American River flume

near............................. 324

South Fork of American River near.... 311

Camp Bonita, Calif., East Fork of San

Gabriel River near............... 81

Campbell Creek at Saratoga, Calif...... 155

Camp Creek near Campo, Calif........... 16

Canby, Calif., Pit River near.......... 255

Canyon Creek below Bowman Lake, Calif.. 300 

Cascade canal near Fish Lake, Oreg..... 352

Cherry Creek near Hetch Hetchy, Calif.. 208 

Chlco, Calif., Butte Creek near........ 270

Chico Creek near Chico, Calif.......... 267

Chiloquin, Oreg., Sprague River near... 351 

Williamson River near................ 345

Chino Creek near Prado, Calif.......... 74

Chittenden, Calif., Pajaro River near.. 138 

Chowchilla River at Buchanan dam site.

Calif............................ 194

City Creek near Highland, Calif........ 57-58

City Creek Water Co. 's canal near

Highland, Calif.................. 59

Claremont, Calif., San Antonio Creek

near............................. 75-76

Southern California Edison Co."s

conduit near..................... 74

Clear Lake at Lakeport, Calif.......... 325

Clements, Calif., Mokelumne River near 232 

Cliff Camp, Calif., North Fork of Kings

River near....................... 174

Clio, Calif., Middle Fork of Feather

River near....................... 286

Clipper Mills, Calif., Forbestown

ditch near....................... 290

Lost Creek near...................... 289

Coalinga, Calif., Los Gatos Creek near. 176 

Colby ranch, Calif., Tujunga Creek near 100 

Cold Creek near Mokelumne Peak, Calif.. 235 

Colfax, Calif., Bear River canal near.. 304 

North Fork of American River near.... 305

Coloma, Calif., South Fork of American

River at......................... 312

Colton, Calif., Lytle Creek (west

channel) at...................... 65

Meeks & Daley canal near............. 67

371
372 INDEX

Page 

Colton, Calif., Warm Creek near........ 53-54

Colusa, Calif., Sacramento River at.... 251

Computations, accuracy of results of.. 3-4 

Concow Creek near Yankee Hill, Calif... 284 

Conn Creek near St. Helena, Calif...... 331

Control, definition of................. 1

Cooperation, record of................. 10

Copco, Calif., Fall Creek at........... 357

Klamath River near................... 349

Corona, Calif., Santa Ana River at

Auburndale Bridge, near.......... 42

Santa Ana River at Hammer Avenue,

near............................. 41

Temescal Creek near.................. 73

Cosgrove Creek near Valley Springs,

Calif............................ 227

Cosumnes River at Michigan Bar, Calif.. 242 

North Fork of, near El Dorado, Calif. 241 

Cottonwood Creek (Goose Lake Basin)

near Lakeview, Oreg.............. 245

discharge measurements of............ 369

Cottonwood Creek (Tia Juana River

Basin) above Tecate Creek, near 

Dulzura, Calif................... 12

at Morena Dam, Calif................. 11

discharge measurements of............ 365

near Dulzura, Calif.................. 11

Coyote Creek (San Gabriel River Basin)

near Artesia, Calif.............. 93

Coyote Creek (tributary to San Francisco Bay) near Edenvale, Calif.. 157 

near Madrone, Calif.................. 156

Coyote Creek (Ventura River Basin) near

Ventura, Calif................... 121

Coyote Creek Basin, Calif., gagingstation records in..............156-157

Craftonville, Calif., Mill Creek power

canal 1 near..................... 50

Mill Creek power canals 2 and 3 near. 49 

Crescent City, Calif., Smith River near 364 

Crescent Mills, Calif., Indian Creek

near............................. 279

Cucamonga Creek near Upland, Calif..... 69

Culver City, Calif., Ballona Creek near 111 

Cupertino, Calif., Stevens Creek near.. 150 

Cuyama River near Santa Maria, Calif... 127

Dalton Creek near Glendora, Calif...... 90

Data, accuracy of...................... 3

explanation of....................... 1-3

Davenport, Calif., Scott Creek near.... 144

Day Creek, discharge measurements of... 367 

near Etiwanda, Calif................. 68

Deer Creek (Feather River Basin) near

Smartville, Calif................ 302

Deer Creek (tributary to Sacramento

River) near Vina, Calif.......... 266

Devil Canyon Creek near San Bernardino,

Calif............................ 60

Don Pedro Reservoir near La Grange,

Calif............................ 205

Downey, Calif., Los Angeles River near. 97 

Rio Hondo near....................... 109

Drew Creek near Lakeview, Oreg......... 243

Drew Creek Reservoir near Lakeview,

Oreg............................. 244

Dry Creek, Calif., discharge measurements of......................... 370

Dry Creek near Healdsburg, Calif....... 335

Duarte, Calif., Fish Creek near........ 87

Dulzura, Calif., Cottonwood Creek above

Tecate Creek, near............... 12

Cottonwood Creek near................ 11

Dulzura conduit near................. 15

Tla Juana River near................. 13

Dulzura conduit near Dulzura, Calif.... 15

Dunneville, Calif., Pacheco Creek near. 139

East Highlands, Calif., Plunge Creek

near............................. 51

Eaton Creek near Pasadena, Calif....... 107

Echo Lake flume near Vade, Calif....... 313

Edenvale, Calif., Alamitos Creek near.. 153

Coyote Creek near.................... 157

Eel River at Hullville, Calif.......... 338

at Scotia, Calif..................... 340

at Van Arsdale Dam, near Potter

Valley, Calif.................... 339

South Fork of, at Garberville, Calif. 342

Page 

Eel River Basin, Calif., gagingstation records in..............337-343

El Capitan Ram, Calif., San Diego

River at......................... 19

El Dorado, Calif., North Fork of

Cosumnes River near.............. 241

El Dorado canal near Kyburz, Calif..... 319

El Toro, Calif., Aliso Creek at........ 36

Elder Creek near Henleyville, Calif.... 264

Eleanor Creek near Hetch Hetchy, Calif. 210 

Elk Creek, Calif., Grindstone Creek

near............................. 269

Elainore, Calif., San Jacinto River

near............................. 71

Elsinore Lake at Elsinore, Calif....... 72

Enterprise, Calif., Palermo canal at... 291 

South Fork of Feather River at....... 288

Estrella Creek near Paso Robles, Calif. 133 

Etiwanda, Calif., Day Creek near....... 68

Exchequer, Calif., Lake McClure at..... 198

Merced River at...................... 199

Fair Oaks, Calif., American River at... 307 

Fall Brook, Calif., Santa Margarita

River near....................... 30

Fall Creek at Copco, Calif............. 357

Fall River Mills, Calif., Pit River at. 256 

Falls Creek near Hetch Hetchy, Calif... 207 

Feather River at Hicolaus, Calif....... 275

near Oroville, Calif................. 274

Middle Fork of, at Bidwell Bar,

Calif............................ 287

near Clio, Calif................... 286

North Fork of, at Big Bar, Calif..... 273

near Prattville, Calif............. 272

South Fork of, at Enterprise, Calif.. 288 

West Branch of, near Yankee Hill,

Calif............................ 283

Feather River Basin, Calif., gagingstatlon records in..............271-304

Fillmore, Calif., Fillmore Irrigation

Co.'s canal near................. 117

Sespe Creek near..................... 116

Fillmore Irrigation Co. 's canal near

Fillmore, Calif.................. 117

Fine Gold Creek near Friant, Calif..... 192

Fish Creek near Duarte, Calif.......... 87

Fish Lake, Oreg., Cascade canal near... 352 

Floods, publications on................ 9

Florence Lake, Calif., South Fork of

San Joaquin River near........... 192

Florence Lake near Big Creek, Calif.... 181

Florence Lake tunnel, Calif. See Ward

tunnel.

Fontana, Calif., Fontana pipe line near 63 

Lytle Creek near..................... 61-62

Fontana pipe line near Fontana, Calif.. 63 

Forbestown ditch near Clipper kills,

Calif............................ 290

Foster, Calif., San Vicente Creek at... 22 

Four-mile Lake Reservoir in Klamath

River Basin, Oreg................ 344

Fresno River near Knowles, Calif....... 193

Friant, Calif., Fine Gold Creek near... 192 

San Joaquin River below.............. 178

Fullerton, Calif., Brea Creek at....... 94

Fullerton Creek at Fullerton, Calif.... 95

Garberville, Calif., South Fork of

Eel River at..................... 342

Sidney Creek, Calif., discharge

measurements of.................. 367

Glendora, Calif., Dalton Creek near.... 90

Little Dalton Greek near............. 91

Goodyears Bar, Calif., North Fork of

Yuba River below................. 298

Goose Lake Basin, Oreg., gaging-station

records in...................... 243-245

Granltevllle, Calif., Bowman Lake near. 299 

Greenspot pipe line. See Southern

California Edison Co.'s canal

and Greenspot pipe line. 

Grindstone Creek, Calif., discharge

measurement of................... 369

Grindstone Creek near Elk Creek, Calif. 269 

Grizzly Creek near Storrie, Calif...... 282

Guadalupe Creek at Guadalupe, Calif.... 151

at San Jose, Calif................... 152
INDEX 373

Page 

Guadalupe Creek Basin, Calif.,

gaglng-statlon records In.......151-155

Guenoc, Calif., Putah Creek near....... 328

Guerneville, Calif., Russian River at.. 334

Haines Creek near Tujunga, Calif.......

Hat Creek near Hat Creek, Calif........

Haywards, Calif., San Lorenzo Creek at. 

Healdsburg, Calif., Dry Creek near.....

Russian River near...................

Henleyville, Calif., Elder Creek near.. 

Hetch Hetchy, Calif., Cherry Creek near

Eleanor Creek near...................

Falls Creek near.....................

Lake Eleanor near....................

Tuolumne 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....

Hot Springs Creek, discharge

measurements of..................

Huasna River near Santa Maria, Calif... 

Hullville, Calif., Eel River at........

Lake Pillsbury at....................

Huntington Lake, Calif., Big Creek

below............................

Huntington Lake near Big Creek, Calif.. 

Huntlngton-Shaver conduit at outlet,

Calif............................

Hyatt Prairie Reservoir in Klamath

River Basin, Creg................

Ice House, Calif., South Pork of

Silver Creek near................

Indian Creek near Crescent Mills,

Calif............................

Irvine ranch drainage canal near

Tustin, Calif....................

Isabella, Calif., South Pork of

Kern River at....................

103

260

159

335

333

264

208

210

207

209

204

203

57-58

59

363

332

367

128

338

337

188

187

344

323

279

80

166

Jacksonville, Calif., Woods Creek near. 213

Jamul Creek near Jamul, Calif.......... 18

Jenny Lind, Calif., Calaveras River at. 226

Julian, Calif., Boulder Creek near..... 21

Kaweah River near Three Rivers, Calif.. 170 

North Fork of, at Kaweah, Calif...... 171

Keddie, Calif., Spanish Creek at....... 280

Keenbrook, Calif., Cajon Creek near..., 66 

Keene Creek canal near Ashland, Oreg... 358 

Kennedy Meadows, Calif., Middle Pork

of Stanislaus River at........... 216

Kennett, Calif., Sacramento River at... 247 

Keno, Oreg., Klamath River at.......... 348

Keno canal at Klamath Palls, Oreg...... 354

Kern River near Bakersfleld, Calif..... 162

near Kernville, Calif............... 160-161

South Fork of, at Isabella, Calif.... 166

near Onyx, Calif................... 165

Kern River Basin, Calif., gagingstation records in..............160-166

Kern River No. 3 canal near Kernville,

Calif............................ 163

Kernville, Calif., Kern River near....160-161

Kern River No. 3 canal near.......... 163

Keswick, Calif., Sacramento River at... 248 

King City, Calif., San Lorenzo Creek

near............................. 136

Kings River above North Pork, Calif.... 172

at Piedra, Calif..................... 173

North Fork of, below Rancheria

Creek, Calif..................... 175

near Cliff Camp, Calif............. 174

Kirkwood, Calif., seepage from Silver

Lake near........................ 316

Silver Lake outlet near.............. 315

Twin Lakes outlet near............... 318

Kittridge, Calif., Merced River at..... 197

Klamath Falls, Oreg., "A" oanal at..... 353

Keno canal at.................r...... 354

Link River at........................ 347

Upper Klamath Lake near.............. 346

Klamath River at Keno, Oreg............ 348

at Somesbar, Calif................... 350

below Pall Creek, near Copco, Calif.. 349

Page

Klamath River, diversion from, to

Lost Kiver near Olene, Oreg...... 356

Klamath River Basin, Calif.-Oreg.,

gaging-station records in.......344-363

smaller reservoirs in................ 344

Knights Ferry, Calif., Oakdale canal

near............................. 225

South San Joaquin canal near......... 224

Knights Landing, Calif., Sacramento

River at......................... 253

Knights Landing Ridge cut, Calif.,

discharge measurements of........ 370

Knowles, Calif., Presno River near..... 193

Kyburz, Calif., El Dorado canal near... 319 

Silver. Fork of South Pork of American

River near....................... 317

South Fork of American River near.... 310

La Grange, Calif., Don Pedro Reservoir

near............................. 205

Modesto canal near................... 214

Tuolumne River near.................. 206

Turlock canal near................... 215

Laguna Creek, Calif., discharge

measurement s of.................. 368

Lagunita canal at Stanford University,

Calif............................ 149

Lake Almanor near Prattvllle, Calif.... 271

Lake Eleanor near Hetch Hetchy, Calif.. 209 

Lake Hodges, Calif., San Dieguito River

at............................... 24

Lake McClure at Exchequer, Calif....... 198

Lake Pillsbury at Hullville, Calif..... 337

Lakeport, Calif., Clear Lake at........ 325

Lakeview, Oreg., Cottonwood Creek near. 245 

Drew Creek near...................... 243

Drew Creek Reservoir near............ 244

North Drew canal near................ 244

Lancha Plana, Calif., Mokelumne

River at......................... 231

Lewiston, Calif., Trinity River at..... 361

Likely, Calif., South Pork of Pit

River near....................... 259

Link River at Klamath Falls, Oreg...... 347

Little Dalton Creek near Glendora,

Calif............................ 91

Little Santa Anita Creek near

Sierra Kadre, Calif.............. 106

Little Tujunga Creek near San

Fernando, Calif.................. 102

Livingston, Calif., Merced River near.. 200 

Lompoc, Calif., Santa Ynez River near.. 126 

Lone Pine Creek, Calif., discharge

measurements of.................. 367

Long Barn, Calif., Tuolumne canal near. 223 

Long Beach, Calif., Los AngeleS River

at............................... 98

Los Alamitos, Calif., San Gabriel

River near....................... 84

Los Angeles River at Long Beach, Calif. 98 

at Los Angeles, Calif................ 96

near Downey, Calif................... 97

Los Angeles River Basin, Calif.,

gagins-station records in........96-110

Los Gatos Creek (Guodalupe Creek

Basin) at Los Gatos, Calif....... 154

Los Gatos Creek (Tulare Lake Basin)

near Coalinga, Calif................ 176

Los Molinos, Calif., Mill Creek near... 263 

Los Trancos canal near Stanford

University, Calif................ 148

Los Trancos Creek at Stanford

University, Calif................ 147

Lost Creek near Clipper Mills, Calif... 289 

Lost River diversion canal near Olene,

Ores............................. 355

Lower Lake, Ca-lif., North Fork of

Cache Creek near................. 327

Lytle Creek, east channel of, at

San Bernardino, Calif............ 64

near Pontana, Calif.................. 61-62

west channel of, at Colton, Calif.... 65

Madrone, Calif., Coyote Creek near.. 

Malibu Creek at Crater Camp, near

Calabacas, Calif..............

Mark West Creek, Calif., discharge

measurement s of...............

156
374 INDEX

Page 

Matlllja Creek at Matillja, Calif...... 119

MeCloud River at Baird, Calif.......... 262

near MeCloud, Calif.................. 261

Medley Lakes outlet near Vade, Calif... 314 

Meeks & Daley canal near Colton, Calif. 67 

Melones powerhouse, Calif.,

Stanislaus River below........... 219

Melones Reservoir at Melones Dam,

Calif............................ 218

Mentone, Calif., Mill Creek near....... 48

Santa Ana River near................. 37-38

Merced River at Exchequer, Calif....... 199

at Happy Isles Bridge, near

Yosemite, Calif.................. 195

at Klttrldge, Calif.................. 197

at Pohono Bridge, near Yasemite,

Calif............................ 196

discharge measurements of............ 368

near Livingston, Calif............... 200

Merced River Basin, Calif., gaglngstatlon records In..............195-201

Mesa Grande, Calif., San Luls Rey

River near....................... 24

Santa Ysabel Creek near.............. 23

Michigan Bar, Calif., Cosumnes River at 242 

Middle Tuolurane River near Buck

Meadows, Calif................... 212

Mill Creek (Sacramento River Basin)

near Los Mollnos, Calif.......... 263

Mill Creek (Santa Ana River Basin),

discharge measurements of........ 366

near Mentone, Calif.................. 48

Mill Creek power canal 1 near

Craftonville, Calif.............. 50

Mill Creek power canals 2 and 3 near

Craftonville, Calif.............. 49

Milton, Oalif., Middle Fork of Yuba

River at......................... 292

Milton-Bowman tunnel at outlet, Calif.. 295 

Modesto canal near La Grange, Calif.... 214

Mokelumne Hill, Calif., Mokelumne

River near....................... 230

Mokelumne Peak, Calif., Cold Creek near 235

Mokelumne River at Lancha Plana, Calif. 231

at Woodbrldge, Calif................. 233

Middle Fork of, at West Point, Calif. 237 

near Clements, Calif................. 232

near Mokelumne Hill, Calif........... 230

North Fork of, below Salt Springs

Dam, Calif....................... 229

South Fork of, near West Point,

Oalif............................ 238

Mokelumne River Basin, Calif., gaglngstation records In..............228-242

Mono Creek near Vermilion Valley,

Calif............................ 186

Monrovia, Calif., Sawplt Creek near.... 88

Montebello, Calif., Rio Hondo near..... 108

Rio Hondo Slough near................ 110

Montecito, Calif., Santa Ynez River

near............................. 122

Morena Dam, Calif., Cottonwood Creek at 11 

Moreno ditch, Calif., discharge

measurement of................... 365

Morgan Hill, Calif., Uvas Creek near... 140 

Mud Slough, Calif., discharge

measurements of.................. 368

Middle Fork of, Calif., discharge

measurements of.................. 368

North Fork of, Calif., discharge

measurements of.................. 368

Murrieta Creek at Temecula, Calif...... 32

Nacimlento River near San Miguel,

Calif............................ 134

Napa River near St. Helena, Calif...... 330

Napa River Basin, Calif., gagIngstation records in..............330-331

Nestor, Calif., Tia Juana River near... 14

Newman, Calif., Orestinfba Creek near... 202

San Joaquin River near............... 179

Nicolaus, Calif., Feather River at..... 275

Niles, Calif., Alameda Creek near...... 158

Nojoqui Creek, Calif., discharge

measurements of.................. 367

North Drew canal near Lakeview, Oreg... 244 

North Fork, Calif., Kings River above.. 172

North San Juan, Calif., Middle Fork 

of Yuba River near............

Oregon Creek near.................

Oakdale canal near Knights Ferry,

Calif............................

Oakland Recreation Camp, Calif., South

Fork of Tuolurane River near......

Oceanside, Calif., San Luis Rey

River at.........................

Olene, Oreg., diversion from Klamath

River to Lost River near.........

Lost River diversion canal near......

O'Neill ditch near Ysidora, Calif......

Onyx, Calif., South Fork of Kern River

near.............................

Oregon Creek near North San Juan,

Calif............................

Orestimba Creek near Newman, Calif.....

Oroville, Calif., Feather River near... 

Otay River at Savage Dam, Calif........

Otay River Basin, Calif., gaging3tat ion records in...............

Page

293

296

225

211

27

356

355

33

165

296

202

274

17

17-18

Pacheco Creek near Dunneville, Calif... 139 

Pacolma Creek near San Fernando, Calif. 99 

Pajaro River, Calif., discharge

measurements of.................. 368

Pajaro River near Chlttenden, Calif.... 138

Pajaro River Basin, Calif., gagingstatlon records in..............138-142

Pala, Calif., San Luls Rey River near.. 25 

Palermo canal at Enterprise, Calif..... 291

Palo Alto, Calif., San Franclsquito

Creek at......................... 146

Pardoe Camp, Calif., Bear River at..... 236

Pasadena, Calif., Arroyo Seco near..... 104

Eaton Creek near..................... 107

Paskenta, Calif., Thomas Creek at...... 265

Paso Robles, Calif., Estrella Creek

near............................. 133

Salinas River at..................... 131

Philadelphia canal near Strawberry,

Calif............................ 228

Pico, Calif., San Gabriel River at..... 83

Pledra, Calif., Kings River at......... 173

Pit River at Big Bend, Calif........... 257

at Pall River Mills, Calif........... 256

near Canby, Calif.................... 255

near Ydalpom, Calif.................. 258

South Fork of, near Likely, Calif.... 259

Pit River Basin, Calif., gaglngstation records in.............. 255-262

Pitman Creek below Tamarack Creek,

Calif............................ 189

Piru Creek near Piru, Calif............ 115

Placerville, Calif., Silver Creek near. 322 

Pleyto, Calif., San Antonio River at... 135 

Plum Creek, Calif., discharge

measurement of................... 369

Plunge Creek near East Highlands,

Calif............................ 51

Porterville, Calif., Tule River near... 168 

Potter Valley, Calif., Eel River near.. 339 

Potter Valley powerhouse tailrace near

Potter Valley, Calif............. 341

Prado, Calif., Chlno Creek near........ 74

Santa Ana River below Prado Dam, near 43 

Santa Ana River near................. 44

Prattville, Calif., Butt Creek above

tunnel No. 1, near............... 276

Butt Creek below tunnel No. 1, near.277-278 

Lake Almanor near.................... 271

North Fork of Feather River near..... 272

Publications on stream flow by

Geological Survey................ 4-6

by State agencies.................... 7-8

Information concerning............... 4-9

on floods............................ 9

Put ah Creek near Quenoc, Calif......... 328

near Winters, Calif.................. 329

Putah Creek Basin, Calif., gaglngstatlon records in..............328-329

Rancheria Creek, Calif., North Pork

of Kings River below............. 175

Rattlesnake Bridge, Calif., North

Fork of American River at........ 306
INDEX 37f

Page 

Red Bluff, Calif., Sacramento

River near....................... 249

Redlanda, Calif., San Timoteo Creek

near............................. 52

Rlncon, Calif., West Pork of San

Gabriel River at................. 85

Rio Hondo near Downey, Calif........... 109

near Montebello, Calif............... 108

Rio Hondo Slough near Montebello,

Calif............................ 110

Rogers Creek near Azuaa, Calif......... 86

Run-off In Inches, definition of....... 1

Russian River at Guernevllle, Calif.... 334

near Healdsburg, Calif............... 333

near Hopland, Calif.................. 332

Russian River Basin, Calif., gaglngstatlon records In..............332-336

Sacramento, Calif., American River at.. 308 

Sacramento bypass gates, discharge

measurement of leakage through... 369 

Sacramento River at Antler, Calif...... 246

at Butte City, Calif................. 250

at Colusa, Calif.............'........ 251

at Kennett, Calif.................... 247

at Keswlck, Calif.................... 248

at Knights Landing, Calif............ 253

at Verona, Calif..................... 254

below Wilklns Slough, Calif.......... 252

discharge measurements of............ 369

near Red Bluff, Calif................ 249

Sacramento River Basin, Calif.,

gaging-station records In.......246-329

Sacramento River main stem, Calif.,

gaglng-statlon records on.......246-254

St. Helena, Calif., Conn Creek near.... 331

Napa River near...................... 330

Sallnas River at Paso Robles, Calif.... 131

near Santa Margarlta, Calif.......... 130

near Spreckels, Calif................ 132

Sallnas River Basin, Calif., gaglngstatlon records In..............130-137

Salmon River at Somesbar, Calif........ 360

Salslpuedes Creek, Calif., discharge

measurements of.................. 368

Salt Springs Dam, Calif., North Pork

of Mokelumne River below......... 229

Tiger Creek powerhouse conduit below. 234 

Salt Springs Reservoir near West

Point, Calif..................... 228

San Antonio Creek near Claremont,

Calif............................ 75-76

San Antonio River (Sallnas River

Basin) at Pleyto, Calif.......... 135

San Benlto River near Willow Creek

School, Calif.................... 142

San Bernardlno, Calif., Devil Canyon

Creek near....................... 60

Lytle Creek (east channel) at........ 64

Santa Ana River near................. 39

San Diego River at El Capltan Dam,

Calif............................ 19

near Santee, Calif................... 20

San Diego River Basin, Calif., gagIngstation records in............... 19-2&

San Dlegulto River at Lake Hodges,

Calif............................ 24

San Diegulto River Basin, Calif.,

gaglng-statlon records In........ 23-24

San Dimas Creek near San Dlmas, Calif.. 89 

San Fernando, Calif., Little Tujunga

Creek near....................... 102

Pacolma Creek near................... 99

San Pranclsqulto Creek at Palo Alto,

Calif............................ 146

at Stanford University, Calif........ 145

San Pranclsqulto Creek Basin, Calif.,

gaglng-statlon records In.......145-149

San Gabriel River at Plco, Calif....... 83

at Spring Street, near Los

Alamltos, Calif.................. 84

East Pork of, near Camp Bonlta,

Calif............................ 81

near Azusa, Calif.................... 82

West Pork of, at Camp Rlncon, Calif.. 85 

San Gabriel River Basin, Calif.,

gaglng-statlon records In........ 81-95

San Jaolnto River near Elsinore, Calif. 71

Page 

San Jaclnto River near San

Jacinto, Calif................... 70

San Joaquln River above Big Creek,

Calif............................ 177

below Prlant, Calif.................. 178

discharge measurements of............ 368

near Newman, Calif................... 179

near Vernalis, Calif................. 180

South Pork of, near Florence Lake,

Calif............................ 182

San Joaquln River Basin, Calif.,

gaglng-statlon records In.......177-192

San Jose, Calif., Guadalupe Creek at... 152 

San Jose Creek near Whlttler, Calif.... 92

San Juan Caplstrano, Calif., San Juan

Creek near....................... 34

Trabuoo Creek near................... 35

San Juan Creek above Capistrano 

diversion near San Juan 

Caplstrano, Calif................ 366

discharge measurement of.............. 366

near San Juan Caplstrano, Calif...... 34

San Juan Creek Basin, Calif., gaglngstation records In............... 34-35

San Lorenzo Creek at Haywards, Calif... 159 

near King City, Calif................ 136

San Lorenzo River at Big Trees, Calif.. 143 

San Luls Rey River at Lake Henshaw,

near Mesa Grande, Calif.......... 24

at Monserate Narrows, near Pala,

Calif............................ 25

at Oceanside, Calif.................. 27

discharge measurements of............ 365

near Bonsall, Calif.................. 26

San Luls Rey River Basin, Calif.,

gaging-station records In........ 24-27

San Mlguel, Calif., Bacimiento River

near............................. 134

San Timoteo Creek near Redlands, Calif. 52 

San Vlcente Creek at Poster, Calif..... 22

Santa Ana, Calif., Santa Ana River at.. 45 

Santiago Creek at.................... 79

Santa Ana_ River at Auburndale

Bridge, near Corona, CalifT."..... 42

at E Street Bridge, near San

Bernardlno, Calif................ 39

at Hamner Avenue, near Corona, Calif. 41 

at Riverside Narrows, near

Arlington, Calif................. 40

at Santa Ana, Calif.................. 45

below Prado Dam, near Prado, Calif... 43 

discharge measurements of............ 366

near Mentone, Calif.................. 37-38

near Prado, Calif.................... 44

Santa Ana River Basin, Calif., gagingstatlon records In............... 37-80

Santa Anita Creek near Sierra Madre,

Calif............................ 105

Santa Agueda Creek, Calif., discharge

measurements of.................. 367

Santa Barbara, Calif., Santa Ynez

River below Gibraltar Dam, near... 122 

Santa Ynez River near................ 123

Santa Clara River near Saugus, Calif... 114 

Santa Clara River Basin, Calif.,

gaglng-station records In.......114-118

Santa Cota Creek, Calif., discharge

measurements of.................. 367

Santa Margarita, Calif., Sallnas

River near....................... 130

Santa Margarlta River at Ysldora,

Calif............................ 31

near Fall Brook, Calif............... 30

Santa Margarlta River Basin, Calif.,

gaglng-statlon records in........ 28-33

Santa Maria, Calif., Cuyama River near. 127 

Huasna River near.................... 128

Santa Maria River Basin, Calif.,

f aging-station records In.......127-128 

aula Creek near Santa Paula, 

Calif............................ 118

Santa Rosa Creek at Santa Rosa, Calif.. 336 

Santa Ynez River at Jameson Lake, near

Monteoito, Calif................. 122

at Solvang, Calif.................... 125

below Gibraltar Dam, near Santa

Barbara, Calif................... 123

discharge measurements of............ 367
376 INDEX

Santa Inez River near Lompoc,

Calif............................ 126

near Santa Barbara, Calif............ 122

near Santa Ynez, Calif............... 124

Santa Ynez River Basin, Calif.,

gaging-station records in.......122-126

Santa Isabel Creek near Mesa Grande,

Calif............................ 23

Santee, Calif., San Diego River near... 20 

Santiago Creek at Santa Ana, Calif..... 79

near Villa Park, Calif............... 78

Saratoga, Calif., Campbell Creek at.... 155

Saugus, Calif., Santa Clara River near. 114 

Savage Dam, Calif., Otay River at...... 17

Sawpit Creek near Monrovia, Calif...... 88

Scotia, Calif., Eel River at........... 340

Scott Creek near Davenport, Calif...... 144

Second-feet per square mile,

definit ion of.................... 1

Second-foot, definition of............. 1

Secopd-foot-day, definition of......... 1

Sespe Creek near Fillmore, Calif....... 116

Shasta River near Yreka, Calif......... 359

Shaver Lake near Big Creek, Calif...... 190

Sierra City, Calif., North Fork of

Yuba River near.................. 297

Sierra Madre, Calif., Little Santa

Anita Creek near................. 106

Santa Anita Creek near............... 105

Sliver Creek at Union Valley, Calif.... 321

near Placerville, Calif.............. 322

South Fork of, near Ice House, Calif. 323 

Silver Lake, seepage from, near

Kirkwood, Calif.................. 316

Sliver Lake outlet near Kirkwood,

Calif............................ 315

Smartville, Calif., Deer Creek near.... 302

Yuba River at........................ 294

Smith River near Crescent City, Calif.. 364 

Soledad, Calif., Arroyo Seco near...... 137

Solvang, Calif., Santa Ynez River at... 125 

Somesbar, Calif., Klamath River at..... 350

Salmon River at...................... 360

South San Joaquln canal near

Knighte Ferry, Calif............. 224

Southern California Edison Co. 'a canal 

and Greenspot pipe line near 

Mentone, Calif................... 46-47

Southern California Edison Co.'s

conduit near Claremont, Calif.... 77

Spanish Creek at Keddle, Calif......... 280

Sprague River near Chiloquin, Oreg..... 351

SpreckelS, Calif., Sallnas River near.. 132 

Spring Valley ditch near Yankee Hill,

Calif............................ 285

Stage-discharge relation,

definition of.................... 1

Stanford University, Calif.,

Lagunlta canal at................ 149

Los Trancos canal near............... 148

Los Trancos Creek at................. 147

San Francisquite Creek at............ 145

Stanislaus River below Melones

powerhouse, Calif................ 219

discharge measurements of............ 369

Middle Fork of, at Kennedy

Meadows, Calif................... 216

at Sand Bar Flat, near

Avery, Calif..................... 217

North Fork of, near Avery, Calif..... 220

South Fork of, at Strawberry, Callf.. 221 

Stanislaus River Basin, Calif.,

gaging-station records in.......216-225

Stevens Creek near Cupertlno, Calif.... 150

Stillwater Creek, Calif., discharge

measurements of.................. 369

Stony Creek above Stony Gorge

Reservoir, Callf................. 268

Stony Creek Basin, Calif., gagingstation records in..............S68-269

Storrie, Calif., Grizzly Creek near.... 282

Strawberry, Calif., Philadelphia

canal near.......................... 222

South Fork of Stanislaus River at.... 221

Strawberry Creek near Arrowhead

Springs, Calif................... 55

Success, Calif., South Fork of Tule

River near....................... 169

Page

Sunland, Calif., Tujunga Creek near..... 101 

Sutter Creek near Sutter Creek, Calif... 240 

Sweetwater River at Sweetwater Dam,

Calif............................. 19

Tamarack Creek, Calif., Pitman Creek

below............................. 189

Tecate Creek, Calif., discharge

measurements of................... 365

Temecula, Calif., Murrieta Creek at..... 32

Temecula Creek at Nigger Canyon, near. _28_ 

Temecula Creek at Railroad Canyon, near 29 

Temecula Creek at Nigger Oanyon, near

Temecula, Calif................... 28

at Railroad Canyon, near Temecula,

Callf............................. 29

Temescal Creek near Corona, Calif....... 73

Tenaya Creek near Yosemite, Calif....... 201

Terms, definition of.................... 1

Thomas Creek at Paskenta, Calif......... 265

Three Rivers, Calif., Kaweah River near. 170 

Tia Juana River near Dulzura, Calif..... 13

near Nestor, Calif.................... 14

Tia Juana River Basin, Calif., gagingstation records in................ 11-16

Tiger Creek powerhouse conduit below

Salt Springs Dam, Callf........... 234

Tilley Creek, Calif., Borel canal at.... 164

Topanga Creek near Topanga Beach, Callf. 112 

Trabuco Creek near San Juan Capistrano,

Callf............................. 35

Tres Pinos Creek near Tres Plnos, Calif. 141 

Trinity River at Lewiston, Calif........ 361

near Burnt Ranch, Calif............... 362

near Hoopa, Calif..................... 363

Tujunga, Calif., Halnes Creek near...... 103

Tujunga Creek near Colby ranch, Calif... 100 

near Sunland, Calif................... 101

Tulare Lake in Kings County, Calif...... 167

Tulare Lake Basin, Calif., gagingstation records In...............167-176

Tule River near Porterville, Callf...... 168

South Fork of, near Success, Calif.... 169

Tuolumne canal near Long Barn, Calif.... 223

Tuolumne River above La Grange Dam,

near La Grange, Calif.............. 206

discharge measurements of............. 369

near Hetch Hetchy, Calif.............. 204

South Fork of, near Oakland

Recreation Camp, Calif............ 211

Tuolumne River Basin, Calif., gagingstat ion records in............... 203-215

Turlock canal near La Grange, Calif..... 215

Tustin, Calif., Irvine ranch drainage

canal near........................ 80

Twin Lakes outlet near Kirkwood, Calif.. 318

Union Valley, Calif., Sliver Creek at... 321 

Upland, Calif., Cucamonga Creek near.... 69 

Upper Klamath Lake near Klamath Falls,

Oreg.............................. 346

Uvas Creek near Morgan Hill, Callf...... 140

Vade, Calif., Echo Lake flume near...... 313

Medley Lakes outlet near.............. 314

Valley Springs, Calif., Cosgrove Creek

near.............................. 227

Van Duzen River at Bridgeville, Calif... 343 

Ventura, Calif., Coyote Creek near...... 121

Ventura River near Ventura, Calif....... 120

Ventura River Basin, Calif., gagingstation records in...............119-121

Vermilion Valley, Calif., Bear Creek

near.............................. 185

Mono Creek near....................... 186

Vernalls, Calif., San Joaquln River near 180 

Verona, Calif., Sacramento River at..... 254

Villa Park, Calif., Santiago Creek near. 78 

Vina, Calif., Deer Creek near........... 266

Ward tunnel at intake, Calif............ 183

at outlet, Calif...................... 184

Warm Creek near Colton, Calif........... 53-54

flfaterman Canyon Creek near Arrowhead

Springs, Calif.................... 56

West Point, Calif., Middle Fork of

Mokelumne River at................ 237

Salt Springs Reservoir near........... 228
INDEX 371/

Page 

West Point, Calif., South Fork of

Mokelumne River near.............. 238

Wheatland, Calif., Bear River near...... 303

Whitehall, Calif., Alder Creek near..... 320

Whittier, Calif., San Jose Creek near... 92 

Wilklns Slough, Calif., Sacramento

River below....................... 252

Williamson River below Sprague River,

near Chiloquin, Oreg.............. 345

Willow Creek School, Calif., San

Benito River near................. 142

Winters, Calif., Putah Creek near....... 329

Woodbridge, Calif., Mokelumne River at.. 233 

Woodbridge canal at Woodbridge, Calif... 239 

Woods Creek near Jacksonville, Calif.... 213

Work, division of....................... 10

scope of.............................. 1

Yankee Hill, Calif., Concow Creek near. 284 

Spring Valley ditch near............. 285

West Branch of Feather River near.... 283

Ydalpom, Calif., Pit River near........ 258

Yolo, Calif., Cache Creek at........... 326

Yolo bypass, Calif., discharge

measurements of.................. 370

Yosemite, Calif., Merced River near...195,196 

Tenaya Creek near.................... 201

Yreka, Calif,, Shasta River near....... 359

Ysidora, Calif., O'Neill ditch near.... 33

Santa MargarIta River at............. 31

Yuba River at Smartville, Calif........ 294

discharge measurements of............ 369

Middle Fork of, at Milton, Calif..... 292

near North San Juan, Calif......... 293

North Fork of,below Goodyears Bar,

Calif............................ 298

near Sierra City, Calif............ 297

o

The use of the subjoined mailing label to return

this report will be official business, and no

postage stamps will be required

UNITED STATES PENALTY FOR PRIVATE USE TO AVOID 

DEPARTMENT OF THE INTERIOR PAYMENT OF POSTAGE. «oo

GEOLOGICAL. SURVEY

OFFICIAL BUSINESS

This label can be used only for returning 

official publications. The address must not 

be changed.

GEOLOGICAL SURVEY,

WASHINGTON, D. C.