Surface Water Supply 

of the United States 

1948

Part 11. Pacific Slope Basins in California

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1121

Prepared in cooperation with the States 

of California and Oregon and other 

agencies

 * copy is PUBLIC PROPERTY and is not to

* recoved froa the official files. PRIVATE

POSSESSION is UNLAWFUL <R. s< sup. vol. 2, PP . sso,

Sec. 749}

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1950
UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

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

.Washington 25, D. C. - Price $1.25 (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation 

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

C. G. Paulsen___________________Chief Hydraulic Engineer 

J. V. B. Wells_________________Chief, Surface Water Branch 

B. J. Peterson_________________Chief, Annual Reports Section

DISTRICT ENGINEERS (SURFACE WATER)

G. H. Canfield (succeeded by K. N. Phillips)_______Portland, Oreg. 

H. D. McGlashan_____________________San Francisco, Calif.

m

Page

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

Definition of terns................................................................... 1

Explanation of data................................................................... 2

Accuracy of field data and computed results........................................... 5

Publications.......................................................................... 6

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

Cooperation........................................................................... 14

Division of work...................................................................... 14

Gaging-station records................................................................ 15

Tia Juana River Basin............................................................... 15

Cottony/cod Creek at Morena Dam, Calif............................................. 15

Cottonv/ood Creek at Barratt Dam, near Dulzura, Calif.............................. 15

Cottonwood Creek above Tecate Creek, near Dulzura, Calif.......................... 16

Tia Juana River near Dulzura, Callf............................................... 17

Tia Juana River near Nestor, Calif................................................ 18

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

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

Otay River Basin.................................................................... 21

Jamul Creek near Jamul, Calif..................................................... 21

Otay River at Savage Dam, Calif................................................... 22

Sweetwater River Basin.............................................................. 22

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

Sweetwater River at Sweetwater Dart, Calif......................................... 23

San Diego River Pasl n............................................................... 24

San Diego River at El Capitan Dan, Calif................. i........................ 24

San Diego River near Santee, Calif................................................ 25

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif........................... 26

San Vlcente Creek at San Vicente Dam, at Foster, Calif............................ 27

San Diegulto River Basin................................................. ....<...... 28

Santa Ysabel Creek near Mesa Grande, Calif........................................ 28

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

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

San Dieguito River near San Pasqual, Calif........................................ 30

San Diegulto River at Lake Hodges, Calif.......................................... 31

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

Guejito Creek at San Pasqual, Calif............................................... 33

Santa Maria Creek near Ramona, Calif.............................................. 34

San Luis Rey River Basin............................................................ 35

San Luis Rey River at Lake Henshaw, near Mesa Grande, Calif....................... 35

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

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

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

Santa Margarita River Basin......................................................... 39

Temeoula Creek at Nigger Canyon, near Temecula, Calif............................. 39

Temecula Creek at Railroad Canyon, near Temecula, Calif........................... 40

Santa Margarlta River near Fall Brook, Calif...................................... 41

Santa Margarita River at Ysldora, Calif........................................... 42

Murrieta Creek at Temecula, Calif................................................. 43

O'Nelll ditch near Ysidora, Calif................................................. 44

San JUEI n Creek Pas In................................................................ 45

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

Trabuco Creek near San Juan Caplstrano, Calif..................................... 46

Aliso Creek Basin................................................................... 47

Aliso Creek at El Toro, Calif..................................................... 47

Santa Ana River Basin............................................................... 48

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

Santa Ana River at E Street Bridge, hear San Bernardino, Calif.................... 50

Santa Ana River at Riverside Narrows, near Arlington, Calif....................... 51

Santa Ana River at Hamner Avenue, near Corona, Calif.............................. 52

Santa Ana River at Auburndale Bridge, near Corona, Calif.......................... 53

Santa Ana River below Prado Dam, near Prado, Calif................................ 54

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

Santa Ana River at Santa Ana, Calif............................................... 56

Southern California Edison Co.'s canal below power plant Ho. 2, near Mentone, Calif. 57

Southern California Edison Co.'s canal near nentone, Calif........................ 58

Greenspot pipe line near Mentone, Calif........................................... 59

Mill Creek near Craftonvllle, Calif............................................... 60

Mill Creek power canals 2 and 3 near Craftonvllle, Calif.......................... 63

Mill Creek power canal 1 near Craftonville, Calif................................. 64

Plunge Creek near East Highlands, Calif........................................... 65

San Tlmoteo Creek near Redlands, Calif............................................ 66

Warm Creek near Colton, Calif..................................................... 67

Strawberry Creek near Arrowhead Springs, Calif.................................... 69

Waterman Canvon Creek near Arrowhead Springs, Calif............................... 70

City Creek near Highland, Calif................................................... 71

City Creek Water Co. 's canal near Highland, Calif................................. 73

V
Gaging-station records Continued.

Santa Ana River Basin Continued. Page

..............'......'. 75

..................... 77

	78 

Meel-s f- Daley Canal near Colton, Calif. .....................I .I!!!!!!!!........!.. 79

Day Creek nenr Ktiwanda, Calif.................................................... 80

Cucanonga Creel; near Upland, Calif................................................ 81

San Jacinto River near San Jadnto, Calif......................................... 82

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

Elsinore Lake at Ulstnore, Calif. ................................................. 83

Temescal Creek near Corona, Calif................................................. 34

San Antonio Creek near Cla'remont, Calif......'..................................... 86

Southern California Edison Co.'s conduit near Claremont, Calif.................... 88

Santiago Creek at Santiago Uam, near Villa Park, Calif............................ 89

Santiago Creek near Villa Park, Calif............................................. 94

Santiago Creek at Santa Ana, Calif................................................ 95

San Gabriel River Basin............................................................. 96

East Fork San Gabriel River near Camp Bonita, Calif............................... 96

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

San Rabriel River below Santa Fe Dan, near Baldwin Park, Calif.................... 98

San Gabriel River at Pi-co, Calif..................................................

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

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

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

Fish Creek near Duarte, Calif..................................................... 102

San Dinas Creek near San Dimas, Calif............................................. 103

Dalton Creek near Glendora, Calif................................................. 104

Little Dalton Creek near Glendora, Calif.......................................... 105

San Jose Creek near Whittier, Calif............................................... 106

Coyote Creel; near Artesia, Calif.................................................. 107

Brea Creek belov/ Brea Dam, near Fullerton, Calif.................................. 108

Brea Creek at Fullerton, Calif.................................................... 109

Fullerton Creek below Fullerton Dan, near Brea, Calif............................. 110

Fullerton Creek at Fullerton, Calif............................................... 110

Los Angeles River Basin............................................................. Ill

Los Angeles River at Sepulveda Dan, Calif......................................... Ill

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

Los Angeles River near Downey, Calif.............................................. 113

Los Angeles River at Long Beach, Calif............................................ 114

Pacoima Creek near San Fernando, Calif............................................ 115

Tujunga Creek near Colby Ranch, Calif............................................. 116

Tujunga Creek near Sunland, Calif................................................. 117

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

Little Tujunga Creek near San Fernando, Calif..................................... 119

Haines Creek near Tujunga, Calif.................................................. 120

Arroyo Seco near Pasadena, Calif : ................................................. 123

Rio Hondo near riontebello, Calif.................................................. 124

Rio Hondo near Downey, Calif...................................................... 125

Sawpit Creek near Monrovia, Calif................................................. 126

Santa Anita Creek near Sierra Tladre, Calif........................................ 127

Little Santa Anita Creek near Sierra Tladre, Calif................................. 128

Raton Creek near Pasadena, Calif.................................................. 129

Mission Creek near riontebello, Calif............................................... 130

Ballona Creek Basin................................................................. 131

Ballona Creek near Culver City, Calif............................................. 13J.

Topanga Creek Easin................................................................. 132

Topanga Creek near Topanga Beach, Calif........................................... 132

Malibu Creek Basin.................................................................. 133

Malibu Creek at Crater Camp, near Calabasas, Calif................................ 133

Santa i^lara River Basin............................................................. 134

Santa Clara River near Saugus, Calif.............................................. 134

Piru Creek near Piru, Calif....................................................... 135

Hopper Creek near Piru, Calif..................................................... 136

Sespe Creek near Wheeler Springs, Calif........................................... 137

Sespe Creek near Fillmore, Calif.................................................. 138

Fillnore Irrigation Co.'s canal near Fillmore, Calif.............................. 139

Santa Paula Creek near Santa Paula, Calif......................................... 140

Ventura River Basi n................................................................. 141

Matilija Creek above Reservoir, near Matilija, Calif.............................. 141

Matlllja Reservoir at Matilija, Calif............................................. 142

Matili.la Creek at Matilija, Calif................................................. 143

Ventura River near Ventura, Calif................................................. 144

North Fork Matllija Creek at Matilija, Calif...................................... 145

Coyote Creek near Ventura, Calif.................................................. 146

Carpinteria Creek Basin............................................................. 147

Carpinteria Creek near Carpinteria, Calif......................................... 147

Atascadero Creek Basin.............................................................. 148

Atascadero Creek ne=r Goleta, Calif............................................... 148

San Jose Creek Basin................................................................ 149

San Jose Creek near Goleta, Calif................................................. 149

Santa Ynez River Basin.............................................................. 150

Santa Ynez River at Jameson Lake, near Montecito, Calif........................... 150

Santa Ynez River above Gibraltar Dan, near Santa Barbara, Calif................... 150

Santa Ynez River below Gibraltar Dan, near Santa Barbara, Calif................... 151

Santa Ynez River below Los Laureles Canyon, near Santa Ynez, Calif................ 152

Santa Ynez River near Santa Ynez, Calif................................. 152
CONTENTS VII

Gaelng-statIon records Continued.

Santa Ynez River Basin Continued. Page

Santa Ynez River at Solvang, Calif............................................... 153

Santa Ynez River near Buellton, Calif............................................ 154

Santa Ynez River at narrows, near Lompoc, Calif.................................. 155

Santa Ynez River near Lompoc, Calif.............................................. 156

Santa Ynez River at H Street, near Lompoc, Calif................................. 157

Santa Ynsz River at barrier, near Surf, Calif.................................... 157

Santa Cruz Creek above Stuke Canyon, near Santa Ynez, Calif...................... 158

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

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

La Zaca Creek at Buellton, Calif................................................. 160

Salsipuedes Creek near Lcwpoc, Calif.............................................. 161

San Antonio Creek Basin. ....'........................................,.............. 161

San Antonio Creek at Harris, Calif............................................... 161

Santa Maria River Basin............................................................ 162

Cuyama River near Ventacopa, Calif............................................... 162

Guyana River near Santa Maria, Calif............................................. 163

Santa Maria River at Guadalupe, Calif............................................ 164

Alamo Creek near Santa Maria, Calif............................................... 164

Huasna River near Santa Maria, Calif............................................. 165

Sisquoc River near Sis^uoc, Calif................................................ 166

Sisquoc River near Garsy, Calif.................................................. 166

La Brea Creek near Sisquoc, Calif................................................ 167

Tepusquet Creek near Sisquoc, Calif.............................................. 167

Arroyo Grande Bas in................................................................ 168

Arroyo Grande at Arroya Grande, Calif............................................ 168

Salinas River Basin................................................................ 169

Salinas River near Pozo, Calif. .^................................................. 169

Sallnas Reservoir near Pozo, Calif............................................... 170

Salinas River above Pilitas Creek, near Santa Margarita, Calif................... 171

Salinas River near Santa Margarita, Calif........................................ 172

Salinas River at Paso Robles, Calif.............................................. 173

Salinas River near Spreckels, Calif.............................................. 174

Toro Creek near Pozo, Calif...................................................... 175

Nacimiento River near San Miguel, Calif.......................................... 176

San Antonio River at Pleyto, Calif............................................... 177

Arroyo Seco near Soledad, Calif.................................................. 178

Pajaro River Basin................................................................. 179

Pajaro River near Chittenden, Calif.............................................. 179

Pacheco Creek near Dunneville, Calif............................................. 180

Uvas Creek near Morgan Hill, Calif............................................... 180

San Berilto River near Willow Creek School, Calif................................. 181

Tres Pinos Creek near Tres Pinos, Calif.......................................... 182

San Lorenzo River Basin............................................................ 183

San Lorenzo River at Big Trees, Calif............................................ 183

Stevens Creek Basin................................................................ 184

Stevens Creek near Cupertino, Calif.............................................. 184

Guadalupe River Basin............................................................... 185

Alamitos Creek near Edenvale, Calif.............................................. 185

Guadalupe River at San Jose, Calif............................................... 186

Lcs Capitanoillos Creek at Guadalupe, Calif...................................... 187

Los Gates Creek below Los Gatos, Calif........................................... 188

Campbell Creek at Saratoga, Calif................................................ 189

Coyote Creek Basin................................................................. 190

Coyote Creek near Madrone, Calif................................................. 190

Coyote Creek near Edenvale, Calif................................................ 190

Alameda Creek Basin'................................................................ 191

Alameda Creek near Niles, Calif.................................................. 191

San Lorenzo Creek Basin............................................................ 192

San Lorenzo Creek at Hayward, Calif.............................................. 192

Kern River Basin................................................................... 193

Kern River near Kernville, Calif................................................. 193

Kern River below Isabella dam site, Calif........................................ 195

Kern River near Bakersfield, Calif............................................... 196

Kern River No. 3 Canal near Kernville, Calif..................................... 197

Borel Canal at Tilley Creek, Calif............................................... 198

South Fork Kern River near Onyx, Calif........................................... 199

South Fork Kern River at Isabella, Calif......................................... 200

Tulare Lake Basin..........i....................................................... 201

Tulare Lake in Kings County, Calif............................................... 201

White River near Ducor, Calif.................................................... 201

North Fork of Middle Fork Tule River near Springvllle, Calif..................... 202

Tule River near Portervllle, Calif............................................... 203

Pacific Gas & Electric Co. condui*- near Springville, Calif....................... 204

South Fork Tule River near Succe^o, Calif........................................ 205

Kaweah River near Three Rivers, Ca?if............................................ 206

North Fork Kaweah River at Kaweah, Calif......................................... 208

Sand Creek near Orange Cove, Calif............................................... 209

Kings River above North Fork, Calif.............................................. 210

Kings River at Piedra, Calif..................................................... 211

North Fork Kings River near Cliff Camp, Calif.................................... 212

North Fork Kings River below Rancheria Creek, Calif.............................. 213

San Joaquin River Basin............................................................ 214

San Joaquin River main stem...................................................... 214

.?an Joaquin River above Big Creek, Call f....................................... 214

San Joaquin River below Kerckhoff powerhouse, Calif............................ 215

Millerton Lake at Friant, Calif................................................ 216

3an Joaquin River below Friant, Calif.......................................... 217
VIII CONTENTS

Gaglng-statlon records Continued. 

San Joaquln River PasIn Continued.

San Joaquln River naln stem Continued.

San Joaquln River near Mendota, Calif.........................................

San Joaquln River near Dos Palos, Calif.......................................

San Joaauln River near El Uldo, Calif.........................................

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

3an Joaquln River near Newman, Calif.

San Joaquin River tributaries above Fresno

South Fork San Joaquln River near Florence Lake, Calif

Ward tunnel at outlet, Calif.................................................. 227

Bear Creek near Vermilion Valley, Calif....................................... 228

Pitman Creek below Tamarack Creek, Calif.

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

Huntington-Shaver conduit at outlet, Calif. ................................... 234

North Fork Willow Creek below Crane Valley Reservoir, Calif. .................. 235

Pacific Gas ft Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif... 236

Big Sandy Creek near Auberry, Calif. .......................................... 237

Fine Gold Creek near Frlant, Calif ............................................ 238

Cottonwool Creek near Friant, Calif. .......................................... 239

Little Dry Creek near Friant , Calif. .......................................... 240

Janes bypass near San Joaquln, Calif .......................................... 241

Fresno River Basin . ............................................................. 242

Fresno River near Knowles, Calif. ............................................. 242

Fresno River near Daulton, Calif. ............................................. 243

Tributaries and d Iverslons between Fresno River and Merced River. ............... 244

Chov;chilla River at Buchanan dam site, Calif. . ................................ 244

Chamberlain Slough near El Nldo, Calif. . ...................................... 245

Salt Slough near Los Banos, Calif ............................................. 246

Merced River Basin. ............................................................. 247

Merced River at Happy Isles Bridge, near Yosenlte, Calif ...................... 247

Merced River at Ponono Bridge, near Yoseriite, Calif. .......................... 248

Merced River at Bagby , Calif . ................................................. 249

Lake McClure at Exchequer, Calif . ............................................. 250

Merced River at Exchequer, Calif. ............................................. 251

Merced River near Stevlnson, Calif ............................................ 252

Tenaya Creek near Ygsemlte, Calif. ............................................ 253

Merced River Slough near Newman, Calif. ....................................... 254

Orestlmba Creek Basin. ........................................................... 254

Orestimba Creek near Newman, Calif. ........................................... 254

Tuolunne River Basin. ........................................................... 255

Hetch Hetchy Reservoir at Hetch Hetchy , Calif ................................. 255

Tuolumne River near Hetch Hetchy, Calif. ...................................... 256

Don Pedro Reservoir near La Grange , Calif. .................................... 257

Tuolumne River above La Grange Dam, near La Grange, Calif ..................... 258

Tuolumne River at Modesto, Calif. ............................................. 259

Falls Creek near Hetch Hetchy, Calif. . ........................................ 260

Cherry Creek near Hetch Hetchy, Calif. ........................................ 261

Lake Eleanor near Hetch Hetchy, Calif. ........................................ 262

Eleanor Creek near Hetch Hetchy, Calif ........................................ 263

South Fork Tuolumne River near Oakland Recreation Camp, Calif ................. 264

Middle Tuolumne River at Oakland Recreation Camp, Calif ....................... 265

Woods Crook near Jacksonville, Calif .......................................... 266

Modesto Canal near La Grange, Calif. .......................................... 267

Turlock Canal near La Grange , Calif . .......................................... 268

Stanislaus River Basin. ......................................................... 269

Middle Fork Stanislaus River at Kennedy Meadows, Calif. ....................... 269

Middle Fork Stanislaus River at Sand Bar Flat, near Avery, Calif .............. 270

Melones Reservoir at Melones Dam, Calif. ...................................... 271

Stanislaus River below Melones powerhouse, Calif. ............................. 272

Stanislaus River at Rlpon, Calif. ............................................. 273

North Fork Stanislaus River near Avery. Calif. ................................ 274

?ou* Fork Stanislaus River at Strawberry, Calif. ............................. 275

Sc-r.rn Fork Stanislaus River near Long Barn, Calif ............................. 276

Philadelphia Canal near Strawberry, Calif. .................................... 277

T'lolumne Canal near Long Barn, Calif .......................................... 278

South San Joaquin Canal near Knights Ferry, Calif. ............................ 279

Oakdale Canal near Knights Ferry", Call f . ...................................... 280

Calaveras River Basin. .......................................................... 281

Calaveras River at Jenny Lind, Calif. ......................................... 281

Cosgrove Creek near Valley Springs, Calif. .................................... 282

Sto-ir.:! d^erting canal at Stockton, Calif ..............

Bear oraek Puoin ...........................................

Bear Crctl. near Lockeford, Calif .........................

Fnkolunne River Basin ......................................

Salt Spring Reservoir near V/est Point, Calif ............

North Fork Mokelumne River below Salt Springs Dan, Calif . 

Mokelumne River near Mokelumne Hill, Calif .

Mokelumne River near Clements , Call f .

Mokelumne River at Woodbrldge, Calif. . ........................................ 290

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif .................. 291
CONTENTS IX

Gaging-station records Continued. 

San Joaquin River Basin Continued.

Mokelumne River Basin Continued. Page

Cold Creek near MokelMmne Peak, Calif......................................... 292

Pear Ri ver at Pardoe Camp, Calif.............................................. 293

Middle Fork Mokelumne River at Wast Point, Calif.............................. 294

South Fork Mokelumne River near West Point, Calif............................. 295

Woodbridge Canal at Woodbridge, Calif......................................... 296

Dry Creek near Gait, Calif.................................................... 297

Cosumnes River at Michigan Bar, Calif......................................... 298

Cosumnes River at McConnell, Calif............................................ 299

Goose Lake Basin'. .............................................\.............'...... 300

Drew Creek near Lakeview, Oreg.................................................. 300

Cotton- 'ood Creek near Lakeview, Oreg............................................ 301

Sacramento River Basin............................................................ 302

Sacramento River main stem...................................................... 302

Sacramento River at Delta, Calif.............................................. 302

Shasta Reservoir near Redding, Calif.......................................... 303

Sacramento River at Kaswick, Calif............................................ 304

Sacramento River near Red Bluff, Calif........................................ 305

Sacramento River at Batte City, Calif......................................... 306

Sacramento River at Colusa, Calif............................................. 307

Sacramento River below Wilkins Slough, Calif.................................. 308

Sacramento River at Knights Landing, Calif.................................... 309

Sacramento River at Vsrona, Calif............................................. 310

Pit River Basin................................................................. 311

Pit River near Canby, Calif................................................... 311

Pit River at Fall River Mills, Calif.......................................... 312

Pit River below Pit Ho. 4 Dan, Calif.......................................... 313

Pit River at Big Bend, Calif.................................................. 314

Pit River near Montgomery Creek, Calif........................................ 315

South Fork Pit River near Likely, Calif....................................... 316

Hat Creek near Hat Creek, Calif............................................... 317

Squaw Creek above Shasta Reservoir, Calif..................................... 318

McCloud River near McCloud, Calif............................................. 319

McCloud River above Shasta Reservoir, Calif................................... 320

Clear Creek Basin............................................................... 321

Clear Creek near Igo, Calif................................................... 321

Cottonwood Creek Basin.......................................................... 322

Cottonwood Creek near Cottonwood, Calif....................................... 322

Battle Creek Basin.............................................................. 323

Battle Creek near Cottonwood, Calif........................................... 323

Antelope Creek Basin............................................................. 324

Antelope Creek near Red Bluff, Calif.......................................... 324

Mill Creek Basin................................................................ 325

Mill Creek near Los Molinois, Calif........................................... 325

Thories Creek Basin.............................................................. 326

Thomes Creek at Paskenta, Calif............................................... 326

Deer Creek Basin...........'..................................................... 327

Deer Creek near Vina, Calif................................................... 327

Chlco Creek Basin............................................................... 328

Chico Creek near Chico, Calif................................................. 328

Stony Creek Basin............................................................... 329

Stony Creek near Hamilton City, Calif.......................................... 329

Butte Creek Basin............................................................... 330

Butte Creek near Chico, Calif................................................. 330

Feather River Basin............................................................. 331

Lake Almanor near Prattville, Calif........................................... 331

North Fork Feather River near Prattville, Calif............................... 332

North Fork Feather River at Big Bar, Calif.................................... 333

Feather River near Oroville, Calif............................................ 334

Feather River at Tlicolaus, Calif.............................................. 335

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif............ 336

Butt Creek below AlmE.nor-Butt Creek tunnel, near Prattville, Calif............ 337

Indian Creek near Crescent Mills, Calif....................................... 338

Spanish Creek at Kertdie, Calif................................................ 339

Bucks Creek Reservoir near Bucks Ranch, Calif................................. 340

West Branch Feather River near Yankee Hill, Calif............................. 341

Concow Creek near Yankee Hill, Calif.......................................... 342

Spr'.ng Valley ditch near Yankee Hill, Calif................................... 343

Middle Fork Feather River near Clio, Calif.................................... 344

Middle Fork Feather River below Sloat, Calif.................................. 345

Middle Fork Feather River at Bidwell Bar, Calif............................... 346

South Fork Feather River at Enterprise, Calif................................. 347

Palermo Canal at Enterprise, Calif............................................ 348

Middle Fork Yuba River at Milton, Calif....................................... 349

Middle Fork Yuba River above Oregon Creek, Calif.............................. 350

Yuba River-at Narrows Dam, Calif.............................................. 351

Yuba River at Marysv^lie, Calif............................................... 352

MJIton-Bowman tunnel at outlet, Calif......................................... 353

Oregon Creek near North San Juan, Calif....................................... 354

North Fork Yuba River below Cfoodyears Bar, Calif.............................. 355

North Fork Yuba River at Colgate diversion dam, Calif......................... 356

South Fork Yuba River near Cisco, Calif....................................... 357

South Fork Yuba River near VJashington, Calif.................................. 358

South Fork Yuba River at Jones Bar, Calif..................................... 359

Bovman Lake near Gran it evi lie, Calif........................................... 360

Canyon Creek below Bowman Lake, Calif......................................... 361

Bownan-Spaulding Canal at Intake, Calif....................................... 362

Deer Creek near Smartville, Calif...............'.............................. 363
flaging-station records Continued. 

Sacramento River Basin Continued.

Feather River Basin Continued. Page

Bear River near Auburn, Calif.................................................. 364

Bear River near Wheatland, Calif............................................... 365

Bear River Canal near Coifax, Calif............................................ 366

American River Basin............................................................. 367

North Fork American River at North Fork Dam, Callf............................. 367

North Fork American River at Rattlesnake Bridge, Calif......................... 368

American River at Fair Oaks, Calif............................................. 369

American River at Sacramento, Calif............................................ 370

Middle Fork American River near Auburn, Calif.................................. 371

Rubicon River near Georgetown, Calif........................................... 372

Georgetown flitch above Pilot Creek, near Georgetown, CaD if..................... 373

Pilot Creek near Georgetovm, CalJf............................................. 374

Georgetovm ditch near Georgetovm, Calif........................................ 375

South Fork American River near Kyburz, Calif................................... 376

South Fork American River near Camlno, Calif................................... 377

Echo Lake conduit near Vade, Calif............................................. 378

Medley Lakes Outlet near Vade, Calif........................................... 379

Silver Lake Outlet near Kirkwood, Calif........................................ 380

Twin Lakes Outlet near Kirkwood, Calif......................................... 381

Cl Dorado Canal near Kyburz, Calif............................................. 382

Alder Creek near Whitehall, Calif.............................................. 383

Silver Creek at Union Valley, Calif............................................ 384

Silver Creek near Placerville, Calif........................................... 385

South Fork Silver Creek near Ice House, Calif................................... 386

American River flume near Camino, Calif........................................ 387

Vfebber Creek near Salmon Falls, Calif.......................................... 388

Colusa and Yolo Basins........................................................... 389

Yolo bypass near Woodland, Calif............................................... 389

Clear Lake at Lakeport, Calif.................................................. 390

Cache Creek near Lower Lake, Calif............................................. 391

Cache Creek near Capay, Calif.................................................. 392

Cache Creek at Yolo, Calif..................................................... 393

Kelsey Creek near Kelseyvllle, Calif........................................... 394

North Fork Cache Creek near Lower Lake, Calif.................................. 395

Putah Creek near Guenoc, Calif................................................. 396

Putah Creek near Winters, Calif................................................ 397

Napa River Basin................................................................... 398

Napa River near St. Helena, Calif................................................ 398

Conn Creek near St. Helena, Calif................................................ 399

Novato Creek Basin................................................................. 400

Novato Creek near Novato, Calif.................................................. 400

Russian River Basin................................................................ 401

Russian River near Hopland, Calif................................................ 401

Russian River near Healdsburg, Calif............................................. 402

Russian River at Guerneville, Calif.............................................. 403

East Fork Russian River near Calpella, Calif..................................... 404

Dry Creek near Cloverdale, Calif................................................. 405

Laguna de Santa Rosa near Graton, Calif.......................................... 406

Eel River Basin.................................................................... 407

Lake Plllsburv at Hullville, Calif............................................... 407

Eel River at Hullville, Calif.................................................... 408

Eel River at Van Arsdale Dam, near Potter Valley, Calif.......................... 409

Eel River at Scotia, Calif....................................................... 410

Potter Valley powerhouse tailrace near Potter Valley, Calif v ..................... 411

South Fork Eel River near Branscomb , Calif....................................... 412

South Fork Eel River near Miranda, Calif......................................... 413

Van Duzen River at Brldgevllle, Calif............................................ 414

Klamath River Basin................................................................ 415

Willianson River below Sprague River, near Chiloquin, Oreg....................... 415

Upper Klamath Lake near Klamath Falls, Oreg...................................... 416

Link River at Klamath Falls, Oreg................................................ 417

Klamath River at Keno, Oreg...................................................... 418

Klanath River below Fall Creek, near Copco, Calif................................ 419

Klamath River at Somesbar, Calif................................................. 420

Smaller reservoirs in Klamath River Basin, Oreg.................................. 421

Sprague R1_ver near Chiloquin, Oreg............................................... 422

Cascade Canal near Fish Lake, Oreg............................................... 423

"A" Canal at Klamath Falls, Oreg................................................. 424

Keno Canal at Klamath Falls, Oreg................................................ 425

Lost River diversion canal near Olene, Oreg...................................... 426

Diversion from Klamath River to Lost River near Olene, Calif..................... 427

Fall Creek at Copco, Calif....................................................... 428

Little Beaver Creek at Pinehurst, Oreg........................................... 429

Keene Creek near Lincoln, Oreg................................................... 430

Keene Creek Canal near Ashland, Oreg............................................. 431

Shasta River near Yreka, Calif................................................... 432

Scott River near Fort Jones, Calif............................................... 433

Salmon River at Somesbar, Calif.................................................. 434

Trinity River at Lewiston, Calif................................................. 435

Trinity River near Douglas City, Calif........................................... 436

Trinity River near Hoopa, Calif.................................................. 437

Smith River Basin.................................................................. 438

Smith River near Crescent City, Calif............................................ 439
CONTENTS

Page 

439 

443

Page

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

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

Creek near Lower Lake, Calif......................................... 3

SURFACE WATER SUPPLY OF PACIFIC SLOPE BASINS IN CALIFORNIA, 1948

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 

'ater year ending September 30, 1948. The work was begun in 1888 in connection with 

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

stage and contents of lakes and reservoirs have been made at about 11,370 gaging stations 

in the 48 States and also at many in the Territories of Alaska and Hawaii. In July 1948, 

5,960 gaging stations, including those in Hawaii, were being maintained by the Geological 

Survey and cooperating organizations. Miscellaneous discharge measurements were made 

during the water year 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, under the heading "Cooperation," in the introductory matter that precedes the gaging-station records in each volume. In the present 

volume, the section on cooperation of the second kind appears on page 14.

DEFINITION OF TERMS

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

nerein are defined as follows:

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

rate of discharge of a stream whose channel is 1 square foot in cross-sectional area and 

whose average velocity is 1 foot per second.

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

second from each square mile of area drained, on the assumption that the runoff is distributed uniformly both as regards time and area.

"Runoff in inches" is the depth to which an area would be covered if all the water 

draining from it in a given period were uniformly distributed on its surface. It is used 

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

An "acre-foot"' is the quantity of water required to cover an acre to the depth of 

1 foot and is equivalent to 43,560 cubic feet. The term is commonly used in connection 

with storage for irrigation.

"Second-foot-day" is the volume of water represented by a flow of 1 second-foot for 24 

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

represents a runoff of 0.0372 inch from 1 square mile.

"Stage-discharge relation" is an abbreviation 'for the term "relation between gage height 

and discharge."

"Control" is a term used to designate a feature downstream from the gage that determines the stage-discharge relation at the gage. This feature may be a natural section, 

a reach of the channel, or an artificial structure.

1
2 SURFACE WATER SUPPLY, 1948, PART 11

"Contents" is a term applied to the volume of water in a reservoir. It is computed on 

the basis of a level pool and does not include bank storage unless otherwise indicated.

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 

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

direct readings on a nonreoording 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 in figure 1.

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

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

If the stage-discharge relation is subject to change because of frequent or continual 

change in the physical features that form the control, the daily mean discharge is determined by the "shifting-control method," in which correction factors based on individual discharge measurements and notes by engineers and observers are used in applying the 

gage heights to the rating tables. At times the stage-discharge relation for a station 

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

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

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

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

method," in which the slope or fall in a reach of the stream is a factor in the determination of discharge. Information requisite for determining the slope or fall is obtained 

by means of an auxiliary gage set at some distance from the base gage. At some stations 

the stage-discharge relation is affected by changing stage, and for them the rate of 

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

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

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

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

occasional winter discharge measurements, consideration being given to the available information on temperature and precipitation, notes by gage observers and engineers, and 

comparable records of discharge for stations in the same or nearby basins. For those 

stations at which the stage-discharge relation is affected by ice, the days included in 

the periods of ice effect either are indicated in the table by symbols referring to a 

footnote that states this fact or are given in a general note following the table. The 

days on which discharge measurements were made during or between periods of ice effect, 

shortly before the first period, or snortly after the last period are similarly indicated 

by a footnote.

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

oresented comprise a description of the station, a table showing the daily discharge of
EXPLANATION OF DATA

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 CACHE CREEK NEAR LOWER LAKE, CALIF.

FIGURE 1. GAGING-STATION STRUCTURES.
4 SURFACE WATER SUPPLY, 1948. PART 11

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

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

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

or other special methods.

The description of the station gives the type of gage, location, drainage area, records 

available, average discharge, extremes of discharge, general remarks, and notations of revisions of previously published record. The location of the gaging station and the drainage area are obtained from the most accurate maps available. Under "Average discharge" is 

given the average discharge for the number of years indicated. It is not given for stations having less than 10 complete years of record or for stations where changes in water 

development during the period of record cause the figure to have little significance. 

Under "Extremes" are given the maximum discharge and gage height; the minimum discharge if 

there is little or no regulation; the minimum daily discharge if there is extensive regulation (also the minimum discharge if useful); and the minimum gage height (unless it is 

of no importance). Unless otherwise qualified, the maximum discharge corresponds to the 

crest stage, obtained by use of a water-stage recorder or a nonrecording gage read at the 

time of the crest. Information pertaining to the accuracy of the records and conditions 

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

For some stations previously published records have been found to be in error on the 

basis of data or information obtained subsequently. Revisions of such records are usually 

published along with the current records in one of the annual reports. In order to make 

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

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

published. Listed therein are all the reports in which revisions appear, each followed by 

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

number, W. means Water-Supply Paper. In listing the years, water years are indicated by 

only 1 year, for instance, 1933 stands for the water year October 1, 1932, to September 30, 

1933. If there were no dally, monthly, or annual figures of discharge involved in the 

revision, that fact is brought out by notations after the year dates as follows: (M) means 

that only the instantaneous maximum discharge was revised; (m) that only the instantaneous 

minimum was revised; and (P) that only peak discharges we're revised. If the drainage area 

has been revised, the report in which the revised figure was first published is given. It 

should be noted that for all stations for which second-feet per square mile and runoff in 

inches are published, a revision of the drainage area necessitates corresponding revision 

of all figures based on the drainage area. Revised figures of second-feet per square mile 

and runoff in inches resulting from a revision of the drainage area only are usually not 

published in the annual series of reports.

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

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

gage height. For stations subject to such fluctuation the daily mean gage height may not 

indicate the true daily mean discharge, which must be obtained by averaging the discharge 

for parts of the day or by using the discharge integrator, an instrument for obtaining the 

dally mean discharge from a continuous gage-height graph and containing as an essential 

element a curve representing the stage-discharge relation at the station. For stations 

equipped with nonrecording gages, the table of daily discharge gives the discharge
ACCURACY OF FIELD DATA AND COMPUTED RESULTS 5

corresponding to either once-daily readings of the gage, the mean of twice-daily readings, 

or the mean gage .height determined from gage-height graphs based on gage readings. For 

periods of rapidly changing stage, the daily mean discharge is determined from gage-height 

graphs based on gage readings, the frequency of which is stated in the station description.

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

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

"Maximum" gives the maximum daily discharge, not the momentary discharge when the water 

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

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

feet per second during the month.

Peak discharges with the times of their occurrence are listed below the table of monthly 

discharge for most stations. All independent peaks above the selected base are given. The 

base discharge, which is given in parentheses, is selected so that an average of about 

three peaks a year will be presented. Peak discharges are not published for canals, 

ditches, drains, or for any stream for which the peaks are subject to substantial control 

by man.

For most gaging stations on lakes and reservoirs the data presented comprise a description of the station and a monthly summary table of stage and contents. For some reservoirs a table showing daily contents or stage is given. A skeleton table of capacity at 

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

but is omitted from succeeding reports.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of stream-flow data depends primarily on (1) the permanency of the stagedischarge relation or, if the control is unstable, the frequency of discharge measurements 

and (2) the accuracy of observations of stage, measurements of flow, and interpretation of 

records.

The station description gives a statement in regard to the general accuracy of the records. "Excellent" indicates that, in general, the error in the daily records is believed 

to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and 

"poor," probably more than 15 percent. The records of monthly and yearly mean discharge 

and runoff are, in general, more accurate than the daily records.

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

owing to diversion, consumption, regulation by storage, increase or decrease in evaporation 

due to artificial causes, or other factors. For such stations figures of "second-feet per 

square mile" and "runoff in inches'" are not published unless storage or diversion records 

are included indicating the extent "of the regulation or diversion or unless satisfactory 

adjustments can be made for changes in contents or reservoirs or for other changes incident 

to use and control. Evaporation from a reservoir is not included in the adjustments for 

changes in reservoir contents, unless its inclusion is indicated. Even at those stations 

where adjustments are made, in some instances large errors in computed yields may occur 

when relatively large negative adjustments are applied or when evaporation is large in 

comparison with the observed discharge. Figures of second-feet per square mile and runoff 

in inches are also omitted if the drainage area includes large noncontributing areas or if 

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

889419 0-50-2
6 SURFACE WATER SUPPLY, 1948, PART 11

Many gaging stations on streams in the Irrigated are.as of the United States are situated 

above most of the diversions from those streams, and therefore the discharge recorded does 

not show the water supply available for further development, as prior appropriations below 

the station must first be satisfied.

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

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

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

throw new light on data previously published, it should be borne In mind that such data are 

subject to revision in succeeding water-supply papers.

PUBLICATIONS

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

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

below:

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

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

	River).

3. Ohio River Basin.

4. St. Lawrence River Basin.

5. Hudson Bay and upper Mississippi River Basins.

6. Missouri River Basin.

7. Lower Mississippi River Basin.

8. Western Gulf of Mexico basins.

9. Colorado River Basin.

10. The Great Basin. 

11. Pacific slope basins In California.

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

13. Snake River Basin.

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

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

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

1. Copies may be purchased at nominal cost from the Superintendent of Documents, Government Printing Office, Washington, D. C., who will, on application, furnish lists giving 

prices.

2. Sets of the reports may be consulted in the libraries of the principal cities in 

the United States.

3. Sets are available for consultation In the offices of the water resources branch of 

the Geological Survey as follows:

East of the Mississippi River:

Albany, N. Y., 526 Federal Building.

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

Atlanta, Ga., 411 Grand Theater Building.

Augusta, Maine, 420 Statehouse.

Baton Rouge, La., 538 Florida Street.

Boston, Mass., 939 Post Office Building.

Champaign, 111., 605 South Nell Street.

Charleston, W. Va., 408 Union Building.

Charlottesville, Va., Cabell Hall, University of Virginia.

Chattanooga, Tenn., 442 Post Office Building.

College Park, Md., 106 Engineering Building, University of Maryland.

Columbia, S. C., 207 Creason Building.

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

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 311 West Washington Street.

Jackson, Miss., 208 Millsaps Building.

Knoxville, Tenn., 337 Post Office Building.

Louisville, Ky., 531 Federal Building.

Madison, WIs., 666 State Office Building.

Montgomery, Ala., 507 Post Office Building.

New Philadelphia, Ohio, Muskingum Watershed Conservancy District Building.

Ocala, Fla., 302 Post Office Building.

Pittsburgh, Pa., 515 Plaza Building.

Raleigh, N. C., 908 Capitol Club Building.

St. Paul, Minn., 1427 New Post Office Building.

Trenton, N. J., 228 Federal Building.

Washington, D. C., General Services Administration Building.
PUBLICATIONS 7

West of the Mississippi River:

Austin, Tex., 302 West Fifteenth Street.

Bismarck, N. Dak., 7 Eltinge Building.

Boise, Idaho, 429 Federal Building.

Denver, Colo., 126 New 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.

Lincoln, Nebr., 510 Rudge-Guenzel Building.

Los Angeles, Calif., 429-F United States Post Office and Courthouse.

Oklahoma City, Okla., 203 Council Building.

Pierre, S. Dak., 207 Federal Building.

Portland, Oreg., 606 Post Office Building.

Rolla, Mo., 211 Ramsey Building.

St. Louis, Mo., 1004 New Federal Building.

Salt Lake City, Utah, 303 Federal Building.

San Francisco, Calif., 702 Appraisers Building.

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

Tacoma, Wash., 207 Federal Building.

Topeka, Kans., 305 Federal Building.

Tueson. Ariz., 210 Post Office Building.

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

Geological Survey, Washington, D. C.

Prior to publication, records of discharge in provisional form for individual stations 

may usually be obtained from the district offices listed above.

Early records of the flow of streams in the United States are published in the reports 

listed below. In many of these reports records for years earlier than those indicated 

have been included for some streams.

Stream-flow data for the years 18S4-1901, In reports of the Geological Survey 

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

Report

loth 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

18th A, pt. 4

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.........

Character of data

Descriptive Information only.

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

Descriptive Information only. 

Descriptions, measurements, gage heights, ratings, and 

monthly discharge.

Descriptions, measurements ratings, and monthly discharge... 

Descriptions, measurements and gage heights of streams east 

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

Descriptions, measurements and gage heights of stream west 

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

Descriptions, measurements, ratings, and monthly discharge. 

Measurements, ratings, and gage heights of streams east of 

the Mississippi River, and Missouri River and tributaries. 

Measurements, ratings, and gage heights of streams west of 

the Mississippi River, except Missouri River and tributaries.

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

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

Year

1884 to September 1890. 

1884 to June 30, 1891. 

1884-92. 

1888-93. 

1893-94.

1895.

1896. 

1895-96. 

1897.

1897.

1897. 

1898.

1898.

1898. 

1899. 

1899. 

1900. 

1900. 

1901. 

1901.

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

and drainage basins, are listed by number on page 8. The data for any particular gaging 

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, and 503, which contain records for the. Ohio River Basin for those years.
Numbers of water-supply papers containing results of stream measurements, 1899-1

Year

1899 a. .................

1903. ...................

1904. ...................

1909. ...................

1910. ...................

1913

1914. ...................

1915... .................

1919-20... ..............

1921. ...................

1924

1925. ...................

1926. ...................

1930. ...................

1931. ...................

1935. ...................

1936. .................... 

1937. ...................

1940....... .............

1941. ...................

1944. ...................

1945......... ...........

1948. ...................

1

3S 

47, h48

65, 75

82

97

0201, p202, q203

241

261

261

301

321

381

401 

431

451

471

501

541

561

581

601

641

661

681

696

711

781

801 

821

891

921

1031

1651

1111

2

b35, 36 

48

65, 75

b82, 83

b97, 98

q!67, 168

q203, 204

242

262

262

302

322

382

402 

432

452

472

502

542

562

582

602

682

697

712

782

802 

822

892

922

1032

1652

1112

3

36

48, 149

65, 75

83

98

169

205

243

263

283 

303

323

383

403 

433

453

473

503

563

603

698

713

783

803 

823

893

9Z3 

953

973

1033

1113

4

36 

49

65, 75

97

170

206

264

284

324

384

404 

434

454

504

544

564

604

699

714

784

804 

824

894

9Z4 

954

1034

1654

1114

5

36 

49

k65, 66, 75

k98, 99. nlOO

207

265

285

32b

385

405 

435

455

505

5Z5 

545

565

605

625

700

715

785

805 

825

895

325 

955

1035

1655

1115

6

' 036, 37

66, 75

99

130, r!31

208

266

286

386

406 

436

506

526 

546

566

606

626

701

716

786

806 

826

896

826

1036

16S6

1116

7

37

k65, 66, 75

k98, 99

k!28, 131

267

287

387

407

507

527

607

627

702

717 

732

787

807 

827

897

927

1007

1037

1657

1117

81 

66, 

1

2

2

2

3

3

3

4

4

5

5

5

6

6

7

7

7

8

8

8

9

10

16

ii
PUBLICATIONS

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.

Each of ths reports on surface water supply for ths year 1938, issued as Water-Supply 

Papers 871 to 884 (see table on p. 8), contains, for the area covered by that report, a 

summary of yearly discharge at gaging stations at which 10 or more complete years of record 

have been collected. These summaries are available also as separate reprints.

Reports have been published that are compilations of records for various areas, usually 

a single State or drainage basin. These reports contain records previously published 

(some of which have been revised), as well as some records not contained in the annual 

series of water-supply papers. The following table gives the numbers and titles of these 

reports, arranged alphabetically, some by States and some by drainage basins.

Reports containing compilations of records of discharge by States and drainage basins

Report Water-supply 

Paper

STATE 

Alabama, Water powers of, with an appendix on stream measurements In 1895-1903

Mississippi. 

California, Water resources of, part 1, Stream measurements in Sacra- 1887-1912

mento River Basin. 

California, Water resources of, part 2, Stream measurements in San 1878-1912

Joaquin River Basin. 

California, Water resources of, part 3, Stream measurements in the Great 1891-1912

Basin and Pacific Coast river basins. 

California, southern, Surface water supply of Pacific slope of........... 1890-1918

California, Surface water supply of Sacramento River Basin............... 1895-1927

California, Surface water supply of San Joaquin River Basin.............. 1895-1927

California, southern, Surface water supply of Pacific slope basins in.... 1894-1927

California, Surface water supply of minor San Francisco Bay, northern 1895-1927

Pacific, and Great basins in. 

Colorado, Water resources of............................................. 1884-19OO

Georgia, Water resources of.............................................. 1895-1905

Massachusetts, Surface waters of......................................... 1848-1915

Massachusetts, Hydrology of, Part 1, Summary of stream-flow and precipl- 1863-1945

tation records. 

Nebraska, Surface water supply of........................................ 1894-1906

Oregon, Surface water supply of.......................................... 1878-191O

Texas, Summary of records of surface waters of........................... 1898-1937

Vermont, Surface waters of............................................... 1S75-1916

Washington, Summary of hydrometric data In............................... 1878-1919

Washington, Summary of records of surface waters of...................... 1919-35

Wisconsin, northern, Water power of...................................... 1895-1905

Wyoming, Surface waters of, and their utilization........................ 1894-1921

DRAINAGE BASIN

Colorado River (Ariz., Colo., N. Mex., Utah, Wyo.) and its utilization... 1888-1914 

Colorado River, upper (Colo., Utah), and its utilization................. 1897-1927

Colorado River Basin (Ariz., Calif., Colo., Utah, Wyo.), Surface waters 1891-1938

at base stations in. 

Colorado River Basin {Ariz., Calif., Nev., N. Mex., Utah), Surface waters 1888-1938

at stations on tributaries in lower. 

Columbia River Basin, upper (Mont., Idaho), Surface waters of............ 1898-1938

Great Salt Lake Basin, Water powers of................................... 1889-1920

Green River (Colo., Utah, Wyo.) and its utilization...................... 1894-1926

Kennebec River Basin (Maine), Water resources of......................... 1890-19O6

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

Missouri and St. Mary River Basins (Mont.), Surface waters of............ 1881-1938

New-Kanawha River Basin (N. C., Va., W. Va.), Surface water supply of.... 1895-1920

Penobscot River Basin (Maine), Water resources of........................ 1904-9

Potoraac River Basin (D. C., Md., W. Va.) 1................................. 1895-1906

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

St. Mary and Milk Rivers (Mont., Canada), Water supply of................ 1898-1917

St. Mary River. See St. Mary and Milk Rivers; Missouri and St. Mary

River Basin. 

Sevier Lake Basin (Utah), Utilization of surface water resources of...... 1889-1937

Susquehanna River Basin (Pa., Md.) Hydrography of........................ 1890-1904

298

299

300

447

597-E

636-D

636-E

637-A

74

197

415

1105

230

370

850

424

492

870

156

469

395

617

918

916

517

618

198

917

536

279

192

358

491

920

109

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.
10 SURFACE WATER SUPPLY, 1948, PART 11

State reports containing compilations of records of discharge

State

Do ......... 

Connecticut . . .

Illinois...... 

Do.........

Kansas ........

Do.........

Kentucky. ..... 

Louisiana. ....

Maine .........

Minnesota. .... 

Missouri. ..... 

Do .........

Nebraska......

Mew Hampshire. 

New Jersey. . . .

New Mexico. . . . 

North Carolina

North Dakota.. 

Do .........

Oregon ........

Do. ........

Period

1895-1915

1904-47

1857-1928 

1881-1935

1881-1938

1900-1927

1912-33 

1898-1946 

1895-1906 

1907-19 

1908-11 

1900-1934 

1923-27 

1927-30 

1873-1932 

1873-1940

1941-42

1895-1919 

1919 24

1924-28 

1928-35 

1935 39

1910-20 

1903-38

1887-1920 

1929-37

1892-1943

1909-12 

1857-1926 

1927-39

1889-1911 

1881-1938

1894-1914

1914-28 

1889-1922 

1892-1928

1928-34 

1934-40

1888-1925 

1889-1923

1889-1936

1866-1945 

1820-1945

1866-1945 

1872-1945 

1919-21

1882-1938 

1882-1944

1898-1921

1898-1944 

1902-39

1898-1939 

1878-1914 

1914-24 

1924-30 

1930-36 

1936-41

Report

Special Report 20, Water Resources and Hydrology of southeastern Alabama.

Water resources of Colorado, Appendix 2, 

Data on stream-gaging stations of 

Colorado. 1 

Water resources of Colorado, Appendix 3, 

vols. 1 and 2, Stream-flow data of 

Colorado. 

Bull. 44, Water resources of Connecticut...

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

Water resources of Illinois ................

Pub. 72, Surface water supply of Indiana... 

Pub. 112, Surface water supply of Indiana..

Water-Supply Bull. 1, Summaries of yearly 

and flood flow relating to Iowa streams . . 

Water-Supply Bull. 2, Surface water 

resources of Iowa. 

Surface waters of Kansas ...................

Report of Division of Water Resources ......

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

Oeol. Bull. 16, Surface water supply of 

Louisiana. 

1st annual report ..........................

Flow data and draft storage curves for 

major streams in Maryland. 

Bull. 1, Summary of records of surface 

waters of Maryland and the Potomac 

River Basin. 

Water-resources Investigation of Minnesota. 

Vol. 20, 2d series, Water resources of 

Missouri. 

Vol. 26, 2d series/ Surface waters of 

Missouri.

Special Rept. 10, vols. 1-4, Water resources of Montana.

Annual and statistical report, vol. 12..... 

Bull. 33, Surface water supply of New 

Jersey. 

Special Rept. 5, Surface water supply of 

New Jersey. 

Special Rept. 9, Surface water supply of 

New Jersey. 

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

Bull. 34, Discharge records of North 

Carolina streams. 

Bull. 39, Discharge records of North 

Carolina streams. 2 

Hydrologie Data on the Neuse River Basin. 

Hydrologic Data on the Cape Fear River 

Basin. 

Hydrologic Data on the Yadkln-Pee Dee River 

Basin . 

Hydro logic Data on the Catawba and Broad 

River Basins 

Report to Governor of North Dakota on 

flood control. 

Surface water In North Dakota. ............. 

Supplement B, 4th biennial report ..........

Bull. 200, Compilation of stream-flow 

records of Ohio.

Bull. Ill, Ohio stream-drainage areas and 

flow-duration tables. 

Bull. 4, Water resources of the State of 

Oregon. 

Bull. 7, Water resources of the State of 

Oregon . 

Bull. 8, Water resources of the State of 

Oregon . 

Bull. 9, Water resources of the State of 

Oregon.

Oregon .

Issued by

Geological Survey of Alabama. 

Do

Arkansas Geological Survey. 

State Planning Commission, 

Water Conservation Board, 

State engineer. 

Do.

State Geological and Natural 

History Survey. 

State Water Commission. 

Florida Geological Survey. 

Geological Survey of Georgia. 

Do. 

Rivers and Lakes Commission. 

Division of Waterways. 

Department of Conservation. 

Do. 

State Planning Board. 

Iowa Geological Survey.

Do.

Kansas Water Commission. 

Do. 

State Board of Agriculture. 

Do. 

Do. 

Kentucky Geological Survey. 

Department of Conservation.

Maine Water Power Commission. 

State Planning Commission and 

Water Resources Commission. 

Department of Geology, Mines, 

and Water Resources.

State Drainage Commission.

Missouri Bureau of Geology 

and Mines. 

Missouri Geological Survey 

and Water Resources. 

Office of the State Engineer. 

Montana Agricultural Experiment Station. 

Bureau of Water Power, Irrigation, and Drainage. 

Do. 

Public Service Commission. 

Department of Conservation 

and Development. 

State Water Policy Commission.

Do.

Office of the State Engineer. 

Department of Conservation 

and Development.

Do. 

Do.

Do.

Do. 

Do. 

State chief engineer.

State Planning Board. 

State Water Conservation 

Commission. 

Engineering Experiment Station, 

Ohio State University. 

Do. 

Department of Agriculture, 

Division of Conservation 

and Natural Resources. 

Engineering Experiment Station, 

Ohio State University. 

Office of the State Engineer.

Do. 

Do. 

Do. 

Do.

1 Contains records of ye;

2 Contains records of raa. 

discharge.

:arly discharge only.

.xlmum and minimum dally, weekly, and monthly discharge and yearly mean
PUBLICATIONS 11

State reports containing compilations of records of discharge Continued

State

Pennsylvania . .

South Carolina

Tennessee. .... 

Do.........

Washington. . . . 

Wisconsin. ....

Period

1890-1911

1884-1946

1874-1924 

1920-30

1927-42

1878-1933 

1888-1914

Report

Keport of the Water Supply Commission of 

Pennsylvania .

Bull. 17, Summary of records of surface 

water supply of South Carolina.

Bull. 34, Water resources of Tennessee^.... 

Bull. 40, Surface waters of Tennessee......

(Potomac-, Rappahannock, and York River 

Basins).

(James River Basin).

(Roanoke and Chowan River Basins).

(Hew, Tennessee, and Big Sandy River 

Basins ) . 

Bull. 5, Monthly and yearly summaries of 

hydrometrlc data. 

1st report of Railroad Commission of Wisconsin to Legislature on water powers.

consln to Legislature on water powers.

Issued by

Water Supply Commission of 

Pennsylvania.

Waters .

South Carolina Research, 

Planning and Development 

Board . 

Department of Education. 

Do.

mission.

Department of Conservation 

and Development. 

Railroad Commission of Wisconsin.

3 Includes records of discharge for all stations In North Carolina In the Tennessee River Basin.

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, Kansas, Maine, Missouri, Montana, Nebraska, Nevada, New 

Mexico, New York (also New York City Board of Water Supply and city of Rochester), North Dakota, 

Oregon, Pennsylvania, Rhode Island, Washington, and Wyoming.

The reports listed in the foregoing tables contain the customary records of discharge 

collected during the systematic operation of gaging stations. Detailed information on 

the stage and discharge of many streams during major floods has been included in special 

reports on these floods published by the Geological Survey. The more recent of these 

special reports also contain other pertinent hydrologic information and analyses and compilations of data relating to earlier noteworthy floois. The following list gives the numsrs and titles of these reports:

Water-Supply 

Paper

88

92

96 

147 

162 

334 

426

487

488

520-G

636-C

771

773-E

796-B

796-C

796-G

798

799

800 

816 

836-A 

838

842

843

844

847

867

869

914

966

967-A

967-B

967-C

994

997 

1046 

1066 

1080

Title

The Passaic flood of 1902.

The Passaic flood of 1903.

Destructive floods In the United States in 1903.

Destructive floods in the United States in 1904.

Destructive floods in the United States in 1905.

The Ohio Valley flood of March-April 1913.

Southern California floods of January 1916.

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

The floods in central Texas in September 1921.

Some floods in the Rocky Mountain region.

The New England flood of November 1927.

Floods in the United States, magnitude and frequency.

The New York State flood of July 1935.

Flood on Republican and Kansas Rivers, May and June 1935.

Flood in La Canada Valley, Calif., January 1, 1934.

Major Texas floods of 1935.

The floods of March 1936, part 1, New England rivers.

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

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

Major Texas floods of 1936.

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

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

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

Floods of December 1937 in northern California.

Floods of March 1938 in southern California.

Maximum discharges at stream-measurement stations through September 1938.

Hurricane floods of September 1938.

Flood of August 1935 in Muskingum River Basin, Ohio.

Texas floods of 1938 and 1939.

Minor floods of 1938 in North Atlantic States.

Floods of September 1939 in Colorado River Basin below Boulder (Hoover) Dam.

Flood of July 5, 1939, in eastern Kentucky.

Flood of August 21, 1939, in town of Baldwin, Maine.

Cloudburst floods in Utah, 1850 to 1938.

Floods in Colorado.

Texas floods of 1940.

Floods of August 1940 in the southeastern States.

Floods of May-June 1948 in Columbia River Basin.
The following table lists gaging stations for the area covered by this report at which 

records of daily discharge were collected during the water year October 1947 to September 

1948 by agencies other than the Geological Survey. The records for these stations are not 

contained in publications of the Geological Survey. Not listed are gaging stations on 

many canals for which records were collected in connection with the operation of irrigation 

projects .

Stream

Alameda storm drain. ..... 

Alhambrs Wash. ...........

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

Anderson Creek. ..........

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

Auger Creek. ............. 

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

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

Batavia storm drain......

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

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

Calabasas Creek. ......... 

Camp Creek. ..............

Castaic Creek. ........... 

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

Cerr itos Channel .........

Clear Lake Reservoir 

(elevation and discharge 

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

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

Dalton Wash. .............

Dominguez Channel. ....... 

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

Dry Creek. ............... 

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

East Etiwanda Creek......

Fullerton relief channel.

vation and discharge).

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

Laguna Dominguez. ........ 

La Tuna Creek. ...........

La Veta Avenue storm 

drain. 

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

Location

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

Short St., Wilmar, Calif ...............

Nordhoff St., near Northridge, Calif... 

NWtSEi sec. 25, T. 37 S., R. 9 E., 12 

miles northeast of Klamath Falls, 

Oreg. 

Below Devils Gate Dam, near Pasadena, 

Calif. 

SEiSE-J- sec. 3, T. 38 S., R. 19 E., near 

Lakeview, Oreg. 

Sepulveda Blvd., near Cvlve~ City, 

Calif.

Below Culver Blvd., near Venice, Calif. 

Parker St., north of Santiago Creek, 

near Orange, Calif. 

SEj sec. 7, T. 38 S. , R. 20 E. , just 

downstream from Cox Creek, near 

Lakeview, Oreg. 

Below Big Dalton Dam, near Glendora, 

Calif.

Ventura Blvd., near West Los Angeles, 

Calif.

feet upstream from road bridge, near 

Lakeview, Oreg. 

State Highway 126 near Castaic, Calif..

Above Lake van Norden, near Soda 

Springs, Calif.

Seventh St., near Long Beach, Calif....

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

Greenleaf St. , Compton, Calif ..........

NEi sec. 8, T. 38 S. , R. 20 E., about 

half a mile upstream from confluence 

with Bauers Creek, near Lakeview, 

Oreg.

Merced Ave., near Baldwin Park, Calif.. 

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

SWi sec. 16, T. 41 S., R. 18 E., 18 

miles southwest of Lakeview, Oreg. 

At bridge on Roosevelt Highway, Calif..

Pacific Electric Railroad bridge near 

Etiwanda, Calif.

Pasadena, Calif. 

Brighton Way west of Magnolia Ave., 

Fullerton, Calif.

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

Lorella, Oreg.

Intake, near southeast corner of sec. 

7, T. 41 s., R. 11 E. , Orei. 

Harbor Blvd., near Torrance, Calif.....

2 miles upstream from mouth, near 

Roscoe, Calif. 

La Veta Ave., east of Santiago Creek, 

southeast of Orange, Calif. 

Devonshire Ave., near Chatsworth, Calif.

Period

1937-48 

1929-48

1939-48 

1946-48

1942-48 

1945-48 

1948 

1942-48

1940-48

1948 

1935-48

1945-48 

1929-48

1940-48

1945-48 

1945-48 

1946-48

1942-48 

1919-48t 

1928-48 

1945-48

1941-48

1938-48 

1942-48

1945-48 

1930-48 

1947-48

1941-48

1926-48

1923-48 

1942-48 

1945-48 

1936-48 

1939-48

Collected by

Orange County Flood 

Control District. 

Los Angeles County Flood 

Control District. 

Do. 

Oregon State engineer.

Los Angeles County Flood 

Control District. 

Oregon State engineer.

Los Angeles County Flood 

Control District. 

Corps 01 Engineers.

Los Angeles County Flood

Control DiTtrlct. 

Do. 

Orange County Flood Control District. 

Oregon State engineer.

Los Angeles County Flood 

Control District.

Flood Control District. 

Los Angeles County Flood 

Control District.

Oregon State engineer.

Los Angeles County Flood 

Control District. 

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

Bureau. 

Los Angeles County Flood 

Control District. 

Bureau of Reclamation.

Los Angeles County Flood 

Control District. 

Oregon State engineer.

Flood Control District. 

Los Angeles County Flood 

Control District. 

Do. 

Do.

Oregon State engineer.

Los Angeles County Flood 

Control District. 

San Bernardino County 

Flood Control District.

Do.

Orange County Flood ConBureau of Reclamation.

Flood Control District. 

Bureau of Reclamation.

Los Angeles County Flood 

Control District. 

Do.

Orange County Flood Control District. 

Los Angeles County Flood 

Control District.

t Monthly discharge 1919-24; daily discharge 1924-48.
KECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 13

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

Stream

Little Sand Creek. .......

Little Santa Anita Creek.

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

Live Oak Creek. ..........

Los Angeles River. .......

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

Lost River. ..............

Do.

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

Monrovia storm drain.....

Montebello storm drain...

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

Peters Canyon Wash.......

Placevita Creek. ..........

Potato Creek. .............

Puddingstone Creek. .......

Reche Canyon Creek. .......

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

Rio Hondo diversion. ......

Rubio Wash. ...............

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

San Diego Creek. ..........

San Dimes Wash. ...........

San Gabriel River. ........

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

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

San Gabriel-Azusa conduit

diversion.

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

San Gabriel-Azusa-Duarte

tunnel diversion.

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

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

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

Sawpit Creek. .............

Sepulveda Creek. ..........

Sycamore Canyon channel

(formerly upper storm

drain) .

Sycamore Canyon channel

(formerly lower storm

drain) .

Thomas Creek. .............

Thompson Creek. ...........

Thompson Creek spreading

ground intake.

Timber Creek. .............

Towne Creek. ..............

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

Tujunga Wash. .............

Tujunga Wash (central

branch) .

Verdugo storm drain. ......

Villa Park storm drain....

Walnut Avenue storm drain.

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

Location

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

270 feet below Sierra Madre Dam at

Sierra Madre, Calif.

Woodlawn Ave., near Sierra Madre, Calif.

Half a mile below Live Oak Dam, near La

Verne, Calif.

Below Sepulveda Dam, Calif. .............

Mariposa St., near Burbank, Calif .......

Harpold Dam, in S| sec. 19, T. 39 S., R.

Ill E. , 4 miles southwest of Bonanza,

Oreg.

Stone bridge below diversion dam near

corner of sees. 7, 8, 17, and 18, T.

41 S., R. 11 E., near Merrill, Oreg.

Above confluence with Sawpit Creek, near

Monrovia, Calif.

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

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

Parthenla St., near Van Nuys, Calif ......

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

Ridge Route Highway, near Sangus, Calif..

Bryant Street, near Yucaipa, Calif.......

Below Puddingstone Dam, near San Dimas,

Calif.

Pigeon Pass Road, near Loma Linda, Calif.

Lower Azusa road, l| miles north of El

Monte, Calif.

Below Santa Fe Dam, Calif. ...............

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

Mouth of canyon, near Claremont, Calif...

Harcrow Road at Culver Road, southwest of

Irvine, Calif.

Below Puddingstone diversion dam, near

San Dimas, Calif.

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

Valley Blvd., near El Monte, Calif .......

Florence St., near Santa Fe Springs,

Calif.

San Gabriel dam 1, calif. ................

Garoia Canyon, Calif. ....................

Mouth of San Gabriel Canyon near Azusa,

Calif.

Yorba Bridge, northeast of Olive, Calif..

Below Big Santa Anita Dam, near Arcadia,

Calif.

Foothill Blvd., near Arcadia, Calif ......

Below Sawpit Dam, near Monrovia, Calif...

Charnock Road, Albright City, Calif ......

Above Solway St., Olendale, Calif ........

Adams Square, Glendale, Calif ............

NWi sec. 22, T. 38 S., R. 19 E. , just upstream from Barnes spring, 8 miles

northwest of Lakeview, Oreg.

Below Thompson Creek Dam, near Claremont,

Calif.

Thompson Creek Dam near Claremont, Calif.

Waterman Ave., near San Bernardino, Calif.

Mountain View Ave., near San Bernardino,

Calif.

Below Big Tujunga dam 1, near Sunland,

Calif.

Magnolia Blvd., North Hollywood, Calif.

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

Estelle Ave., Glendale, Calif ............

Center Dr. at Lincoln St., near Villa

Park, Calif.

Walnut Ave. at Prospect Ave., east of

Orange, Calif.

Covina Blvd., at Baldwin Park, calif.....

Period

1947-48

1929-48

1938-48

1928-48

1929-48

1938-48

1945-48

1923-48

1927-48

1932-48

1932-48

1928-48

1930-48

1947-48

1947-48

1927-48

1947-48

1932-48

1944-48

1928-48

1931-48

1941-48

1945-48

1932-48

1937-48

1934-48

1935-48*

1933-48*

1918-48

1934-48

1948

1938-48

1941-48

1932-48

1927-48

1927-48

1945-48

1943-48

1940-48

1945-48

1942-48

1932 -48

1930-48

1930-48

1936-48

1936-48

1928-48

1926-48

Collected by

San Bernardino County

Flood Control

District.

Los Angeles County

Pl.rod control

DiatrJct.

Do.

Do.

Do.

Do.

Bureau of Reclamation.

Do.

Los Angeles County

Flood Control

District.

Do.

Do.

Do.

Orange County Flood

Control District.

Los Angeles County

Flood Control

District.

San Bernardino County

Flood Control

District.

Los Angeles County

Flood Control

District.

San Bernardino County

Flood Control

District.

Los Angeles County

Flood Control

District.

Do.

Do.

Do.

Orange County Flood

Control District.

Los Angeles County

Flood Control

District.

Do.

Do.

Do.

Do.

Do.

Do.

Orange County Flood

Control District.

Los Angeles County

Flood Control

District. 

Do.

Do.

Do.

Do.

Do.

Oregon State engineer.

Los Angeles County

Flood Control

District.

Do.

San Bernardino County

Flood Control

District.

Do.

Los Angeles County

Flood Control

District. 

Do.

Do.

Do.

Orange County Flood

Control District.

Do.

Los Angeles County

Flood Control

District.

* Records for some earlier years contained in water-supply papers of Geological Survey.
SURFACE WATER SUPPLY, 1948, PART 11

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

Stream

Warm Creek. .............. 

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

West Anahelm storm drain.

West Pork San Gabriel 

River. 

Do.

Wilson Creek. ............

Location

Sterling Ave., near San Bernardino, 

Calif.

Calif. 

Manchester Blvd., west of Anaheira, 

Calif. 

Half a mile below San Gabriel dam Z, 

Calif.

Douglas Street, near Yucaipa, calif...

Period

1946-48

1936-48 

19J4-48

1942-48

Collected by

San Bernardino County Flood 

Control District.

Orange County Flood Control 

District. 

Los Angeles County Flood 

Control District.

Control District. 

Do.

COOPERATION

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

of Public Works, C. H. Purcell, director, and Edward Hyatt, State engineer; Riverside and 

San Bernardino Counties. In Oregon the work was done under cooperative agreement with the 

State of Oregon, C. E. Stricklin, State engineer.

Financial assistance was furnished by the Corps of Engineers for the operation of 44 

gaging stations and by the Bureau of Reclamation of the United States Department of the 

Interior for the maintenance of 42 gaging stations. The entire expense of the investigation of stream flow in the Tuolumne River Basin made for the Hetch Hetchy project and of 

the flow of Alameda Creek near Niles was borne by the city and county of San Francisco.

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

California, by The California Oregon Power Co., Southern California Edison Co., Pacific 

Gas & Electric Co., and Merced, Modesto, Table Mountain, Thermalito, Turlock, and Woodbridge Irrigation Districts; in Oregon, by The California Oregon Power Co.

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

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

surface water branch. The data for the gaging stations were collected and prepared for 

publication under supervision of district engineers as follows: In California (except for 

Fall Creek and Klamath River near Copco), H. D. McGlashan; in Oregon and for Fall Creek 

and Klamath River near Copco, Calif., G. H. Canfield prior to September 1, 1948, and K. N. 

Phillips, thereafter. The work in Oregon was done in collaboration with C. E. Stricklin, 

State engineer.

The records were reviewed and the manuscript prepared for publication under the direction of B. J. Peterson, chief, annual reports section.
GAG ING-STATION RECORDS 15

TIA JUANA RIVER BASIN 

Cottonwood Creek at Morena Dam, Calif.

Location.- Staff gage, lat. 32°41'00", long. 116°32'55", in SW^ sec. 14, T. 17 S., R. 4 E., 

at Morena Dam. Datum of gage is 2,883.4 feet above mean sea level.

Drainage area.- 130 square miles.

Records available.- January 1916, October 1936 to September 1948.

Remarks.- Heeords of runoff represent all water reaching reservoir, including rainfall 

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

leakage, and evaporation. Capacity and area ratings for reservoir have been used since 

prior to 1916 without change; date of surveys unknown. Capacity of reservoir at 

permanent spillway level (gage height, 157.00 feet), 56,870 acre-feet. Dead storage, 

138 acre-feet below lowest outlet at gage height 32.5 feet, included in these records. 

Gage read daily about 7 a.m. No diversion above reservoir. Water is released duwn 

Cottonwood Creek to Barrett Reservoir as required.

Cooperation.- Records computed in cooperation with city of San Die'go.

Revisions (water year).- W 1091: 1946.

Monthly runoff, water year October 1S47 to September 1S>48

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

Calendar year 1947

Mair

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

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

Water year 1947-48

Morena Res

Gage height 

(feet)

130.43

-

68.22

-

ervolrt

Contents 

(acre-feet)

25 391

24,455

-

1,828

-

Change

contents 

(acrefeet)

-5S8

-24,787

-24,739

Draft

(acrefeet)

404

17,524

18,235

Evaporation

(acrefeet)

ISO

6,397

2,675

Spill 

plus

leakage 

(acrefeet)

88

1,05S

88

495

Runoff

( ac re - 

feet)

-284

84

193

-485

40

-456

-3,330

t On first day of month.

Note.- For months when Inflow to reservoir was small and other elements were large, 

negative or discordant figures of runoff may appear. To the extent that such discrepancies may be attributed to changes In reservoir capacity since the time of rating 

used, or to uncertainties In the rating, quantities too small for periods of falling 

stage In reservoir are compensated by quantities too large for periods of corresponding rising stage.

Cottonwood Creek at Barrett Dam, near Dulzura, Calif.

Location.- Staff gage, lat. 33°40'45", long. 116°40'30", in NW£ sec. 22, T. 17 S., R. 3 E.

 at Barrett Dam, 17 miles northeast of Dulzura. Datum of gage is 1,446.12 feet above

mean sea level.

Drainage area.- 250 square miles. 

Records available.- October 1945 to September 1948. January 1906 to December 1915, river

 gaging station at Barrett dam site. October 1936 to September 1946, record .at Barrett 

Dam computed to represent runoff from cottonwood Creek Basin below Morena Dam (drainage area, 130 square miles).

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

rainfall on reservoir surface and water passing down Cottonwood Creek from Morena 

Dam, computed on basis of records of storage, release (draft), spill, leakage, and 

evaporation. Capacity and area ratings for reservoir date from 1922, when Barrett 

Dam was completed. Capacity of reservoir at permanent spillway level (gage height, 

160.88 feet) 36,180 acre-feet. Dead storage, 1,060 acre-feet below lowest outlet at 

gage height 58.88 feet, included in these records. Gage read daily about 7 a.m. 

Regulation at Morena Dam. No diversion above reservoir. Dulzura conduit (see p.19) 

diverts water at Barrett Dam and carries it out of basin to Lower Otay Reservoir (see 

p. 22) for municipal use.

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

Monthly runoff, water year October 1947 to September 1948

Month

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

Calendar year 1947..

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

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

Water year 1947-48..

Barrett Reservolrt

Gage height 

(feet)

116.37 

110.66 

104.58

.

103.22 

104.08 

113.17 

107.03 

116.74 

110.55 

104.06 

104.60 

102.51 

101.25

-

Contents 

(acre-feet)

11,428 

9,658 

8,009

_

7,668 

7,882 

10,407 

8,647 

11,551 

9,626 

7,877 

8,014 

7,494 

7,191

-

Change 

contents 

(acrefeet)

-1,770 

-1,650 

-340

-8,228

+214 

+2,525 

-1,760 

+2,904 

-1,925 

-1,749 

+137 

-520 

-303

-4,237

Draft 

(acre-, 

feet)

2,583 

2,349 

1,100

28,590

1,678 

1,860 

2,034 

2,273 

2,367 

2,100 

641 

1,737 

2,347

23,069

Evaporation 

(acrefeet)

122 

67 

50

1,500

57 

56 

71 

115 

174 

157 

193 

176 

147

1,385

Spill 

plus 

leakage 

(acrefeet)

0 

0 

0

2

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Runoff 

(acrefeet)

935 

766 

810

21,864

1,949 

4,441 

345 

5,292 

616 

508 

S71 

1,393 

2,191

20,217

t On first day of month.
16 TIA JUANA RIVER BASIN 

Cottonwood Creek above Teoate Creett, near Dulzura, Calif.

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

H. a K., 0.5 mile upstream from confluence with Tecate Creek and 5.5 miles south of

Dulzura.

Drainage area.- 316 square miles.

Records available.- October 1936 to September 1948.

Average discharge.- 12 years, 16.7 second-feet.

Extremes.- Maximum discharge during year, 43 second-feet Dec. 5 (gage height, 2.39 feet); 

no 1'low during most of year.

1936-48: 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. Plow regulated by Barrett and Morena Reservoirs, 10 and 18 miles 

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

(see p. 19).

Discharge, in second-feet, wster year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

1.5

3.9

.2

.1

7.0

5.1

2.7

1.6

1.1

.8

.7

.6

'.5

.4

.4

.4

.4

.4

.3

.3

.3

.3

.2

.1

.1

.1

.1

.1

.2

.2

.1

Jan.

0.1

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

' e.06

.1

Feb.

0.1

.2

.2

.2

.7

3.1

.5

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.2

.3

_

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

0.2

.2

.2

.1

e.06

.2

.2

.1

) e C6 r 1.3

2.3

1.2

1.0

1.5

1.1

1.0

.8

.6

.5

.5

1.6

1.2

.8

.7

.7

.7

.6

Apr.

0.5

.5

.5

.6

.5

.4

.4

.3

.2

.2

.2

.2

.2

.1

e.03

0

0

0

0

-

Secondfoot-days

0

0

30.2

69.7

3.08

9.2

19.74

5.16

0

0

O

0

0

67.38

May

Maximum

o

0

7.0

7.0

.2

3.1

2.3

.6

O

O

0

0

O

7.0

June

Minimum

0

0

.1

0

.1

_

0

0

0

0

0

0

July Aug.

Mean

0

0

.97

.19

.099

.32

.64

.17

0

0

0

0

0

.184

Sept.

Runoff in 

acre-feet

0

0

60

138

6.1

18

39

10

0

0

0

0

0

133

e Dally discharge less than 0.1 second-foot..
TIA JUANA RIVER BASIN 17

Tia Juana River near Dulzura, Calif.

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

K. ii E., 0.5 mile downstream from confluence of Cottonwood and Tecate Creeks and 5.5 

miles south of Dulzura. Altitude of gage, about 550 feet (from topographic map).

Drainage area.- 478 square miles, of which 62 square miles is in Mexico.

Records available.- October 1936 to September 1948.

Average discharge.- 12 years, 27.2 second-feet.

Extremes. - Maximum discharge during year, 110 secondr-feet Dec. 1 (gage height, 3.15 feet); 

no now during several periods.

1936-4^: 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 during part of most years.

Remarks.- Records fair. Flow regulated by Morena and Barrett Reservoirs on Cottonwood 

UreeTt.

Discharge, in second-feet, water year October 1947 to September 1946

Day

1

2

3

4

5

6

7

8

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.

, dd.Ol

> d.03

> d.06

-

Dec.

16

8.8

.6

.2

14

4.5

2.6

2.0

1.4

1.2

1.2

1.0

.8

.8

.8

.8

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.4

.4

Jan.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

.2

.2

.4

.6

.6

Feb.

0.8

.8

1.0

1.0

1.4

4.5

1.7

.8

.6

.4

.4

.2

.2

.2

.2

.2

.2

.2

.2

.4

.4

.4

.6

6

.6

.6

.8

1.0

1.4

-

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

1.2

1.2

1.2

.6

.2

.2

.6

.4

1.7

2.0

1.0

.4

.4

3.7

14

6.0

6.0

6.0

3.7

3.7

3.3

2.6

2.3

3.3

7.4

4.1

2.3

1.7

2.0

2.0

1.2

Apr.

1.0

.8

.8

1.2 I'.O

.8

.8

.6

.4

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.2

.1

-

Secondfoot-days

0

1.00

65.3

194.12

9.6

21.8

86.4

9.8

4.4

1.00

0

0

0

199.3

May

0.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.2

.2

.2

.2

.1

.1

.1

.2

.4

.4

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Maximum

0

16

16

.6

4.5

14

1.2

.4

0

0

0

16

June

I

y dO. 08

I

J

.

]

I d.05

[

)

j

I d.03

1

1

.

1L d.02

[

1

, d.Ol

~

Minimum

0

.2

0

.2

.2

.2

.1

.1

0

0

0

0

July Aug.

Mean

o

.033

2.11

.532

.31

.75

2.79

. 33

.14

.033

0

0

0

.54

Sept.

Runoff in 

acre-feet

0

2.0

130

386

19

43

171

19

8 . 7

2.0

0

0

0

395

d Doubtful gage-height record; discharge computed on basis of 1 discharge measurement, 1 observation of no flow, and interpolation.
18 TIA JUAHA RIVER BASIN

Tia Juana River near Nestor, «alif.

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

J and 4, T. 19 S., R. 2 W., 1.5 miles south of Nestor and 3 miles upstream from mouth 

Datum of gage is 18.07 feet above mean sea level (levels by California Water & Telephone Co. ).

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

Records available.- October 1914 to September 1915, October 1936 to September 1948. 

Average discharge.- 13 years (1914-15, 1936-48), 82.4 second-feet.

Extremes.- Maximum discharge during year, 510 second-feet Dec. 5 (gage height, 3 67 feet)- 

no now during several periods.

1936-48: Maximum discharge, 17,700 second-feet Feb. 7, 1937 (gage height 8.20 feet) 

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

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

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

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

by Rodriguez Reservoir, operated by Government of Mexico.

Discharge, in second-feet, water year October 1947 to September

Day

1

2

7,

4

5

6

7

R

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

12

11

9.6

172

65

31

22

17

15

14

13

12

11

11

10

9.6

9.6

9.6

9.1

8.2

7.7

7.7

7.7

6.8

5.6

5.3

5.3

6.0

5.6

5.0

Jan.

5.0

6.4

5.5

6.3

5.6

5.0

4.4

4.6

3.3

a2.6

g2.0

1.6

1.2.7'

g-6

g-6

g-6

.6

1.0

gl.7

g-4

g-5

gl.O

1.8

gl.3

gl.O

0 9

a. 7

g-6

g-6

g-6

Feb.

gO.5

g-7

f .6

.6

3.0

30

12

8.7

7.7

6.4

5.3

4.4

4.1

3.8

3.5

3.5

2.4

1.7

1.3

1.4

1.2

1.0

.9

.9

.9

1.0

1.0 1.1

1.0

-

-

Month

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

Calendar year 1947 .....................

Febr 

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

MAV

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

Water year 1947-48 ......................

Mar.

0.7

.6

.6

.4

.3

.3

.3

.2

.5

1.7

1.1

.6

.3

.4

9.6

8.2

6.8

11

7.7

6.8

5.6

5.3

4.4

3.8

5.3

3.5

3.3

3.3

3.5

3.3

3.3

Apr.

3.3

2.8

2.2

1.8

1.7

1.6

1.3

.7

.2

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

~

Secondfoot-days

534.4

1,147.4

110.6

0

830.8

May

Maximum

0

172

172

30 

11

0

0

0

0

172

June

Minimum

0

0

0

0

.4

.5 

.2

0

0

0

0

0

0

0

July Aug.

Mean

0

0

17.2

3.14

2.18

3.81

3.31

.52

0

0

0

0

0

2.27

Sept.

Runoff in 

acre-feet

0

0

1,060

2,280

134

219 

204

31

0

0

0

0

0

1,650

a No gage-height record; discharge interpolated.

f Computed on basis of partly estimated gage-height record.

g Discharge computed from graph based on twice-daily gage-height readings.
TIA JUANA RIVER BASIN 19

Dulzura conduit near Dulzura, Calif.

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

in swir sec. 10, T. 18 S., R. 2 E., 0.1 mile south of State Highway 94 and 2.3 miles 

east of Dulzura. Elevation of weir crest, 1,446.41 feet.

Records available.- January 1909 to September 1915, May 1940 to September 1948. 

Average discharge.- 14 years (1909-15, 1940-48), 18.3 second-feet.

Extremes.- Maximum dally discharge during year, 41 second-feet Oct. 27, 28; no flow Dec. 

1U-1H, July 11 to Aug. 8.

1909-15, 1940-48; Maximum daily discharge, 65 second-feet Feb. 4, 1911; no flow for 

periods each year.

Remarks.- Records good. Conduit diverts from Cottonwood Creek at Barrett Dam in NW£ sec. 

S27~T7 17 S., R. 3 E.

Discharge, in second-feet, water year October 1947 to September 1S48

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

39

39

39

41

40

40

40

Nov.

40

40

39

39

38

38

38

38

38

38

38

39

39

38

38

37

37

37

36

36

36

37

37

36

36

36

36

Dec.

34

18

21

25

18

12

12

12

12

7.9

.1

0

0

0

0

0

0

0

6.6

24

27

31

31

30

30

30

30

30

30

30

29

Jan.

29

29

28

27

27

27

26

26

26

26

26

26

26

26

26

26

25

25

25

25

25

25

24

24

24

Z5

26

26

26

26

26

Feb.

26

25

21

32

35

25

25

25

Z8

34

34

35

35

33

31

31

32

32

32

32

32

32

32

32

33

33

32

33

32

-

-

Month

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

Calendar year 1947 ......................

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

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

Water year 1947-48 ......................

Mar.

32

32

32

32

32

35

35

35

35

34

34

34

34

33

27

30

28

25

29

29

30

34

36

35

29

29

32

34

34

34

34

Apr.

34

34

34

34

35

35

35

36

36

37

37

34

34

35

35

36

36

36

36

37

37

38

38

39

39

39

39

38

38

f38

-

Secondfoot-days

530.6

13,702.7

1,093

11,044.5

May

f37

37

37

37

37

36

36

36

36

36

36

36

36

36

36

36

36

36

35

35

37

39

39

38

24

35

39

39

39

38

38

Maximum

41

40

34

48

29

40

41

June

38

38

38

38

37

37

37

36

36

36

35

35

35

35

36

36

36

35

35

35

34

34

34

34

33

33

32

7.5

7.2

31

~

Minimum

39

36

0

0

24

21

25

24

7.2

32

0

July

35

36

36

35

35

34

35

35

28

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

0

0

0

0

2.1

21

33

39

39

39

38

39

39

39

39

39

39

39

Mean

39.9

37.6

17.1

37.5

25.9

30.8

32.2

36.3

36.4

33.5

9.97

36.4

30.2

Sept.

39

40

39

38

38

38

38

39

38

37

36

32

32

40

Runoff in 

acre-feet

2,450

2,240

1,050

27,170

1,590

1,770

1,980

2,160

2,240

1,990

613

1,650

2,170

21,900

f Computed on basis of partly estimated gage-height record.
20 TIA JUANA RIVER BASIN

Campo Creek near Campo, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 32°35'20", long. 116°31'35", 

in sec. 24, T. 18 S., R. 4 E., just downstream from bridge on State Highway 94, about 

3.5 miles southwest of Campo.

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

Records available.- October 1936 to September 1948. 

Average discharge.- 12 years, 5.11 second-feet.

Extremes.- Maximum discharge during year, 0.8 second-foot Dec. 1 (gage height, 0.27 foot); 

no flow during several months'.

1936-48: 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 most summers.

Remarks.- Records good.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

0

0

O

0

O

0

0

0

O

0

0

0

0

0

0

O

0

0

0

0

0

0

O

.1

.2

.2

.2

.2

.2

.2

-

Dec.

0.4

.3

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

Jan.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Feb.

0.1

.1

.1

.1

.4

.4

.3

.2

.2.2'

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

-2

.2

_

-

Month

Octo 

Nove 

Dece

ber. ...................................

mber. ........................ .........

mber. ..................................

Calendar year 1947 ......................

Janu 

Febr 

Marc 

Apri 

May. 

June

July 

Augu 

Sept

ary ....................................

uary. ................. i ................

h. .....................................

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

St. ....................................

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

Water year 1947-48 ......................

Mar.

0.2

.2

.2

.1

.1

.1

.1

.1

.3

.2

.2

.2

.2

.3

.4

.2

.2

.2

.2

.2

.2

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

Apr.

0.1

.1.1.

.2

.2

.1

May

".1 0.1

f.l

f.l

f.l

^ .2 1

.1:i 1 * <*

.2 I

.2 U

.2 ft

 1

.1 |

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

\ e.03

\ e.05

'

.1 K

f.l

f.l > e.06

.1 I .1 y

.1

Secondfoot-daya

0 

1.3 

5.3

125.5

4.2 

4.8 

5.4 

3.7 

1.76 

.66

0 

O 

O

27.12

Maximum

0 

.2 

.4

3.8

.2 

.4 

.4 

.2 

.1 

.1

0 

0 

0

.4

June

0.1

>

e.07

 e.03

t e.O?

, e.Ol

0

O

-

Minimum

0 

0

.1

0

.1 

.1 

.1.1

0

0 

0 

0

0

July Aug.

Mean

0 

.043 

.17

.34

.14 

.17 

.17 

.12 

.057 

.022

0 

0 

0

.074

Sept.

Runoff in 

acre-feet

0 

2.6

11

249

8.3 

9.5 

11 

7.3 

3.5 

1.3

0 

0 

0

54

Peak discharge (base, 2O sec.-ft.- No peak above base.

e Dally discharge less than O.I second-foot.

f Computed on basis of partly estimated gage-height record.
OTAY RIVER BASIN 21 

Jamul Creek near Jamul, Calif.

Location.- Water-stage recorder and broad-crested--weir with 5-foot venturi flume for lowwater notch, lat. 32°38'10", long. 116°53'05", in NE^- sec. 4, T. 18 S., R. 1 E., 300 

feet upstream from county road crossing at upper end of Lower Otay Reservoir, 1.4 miles 

downstream from Dulzura Creek, and 5.5 miles south of .Tamul. Altitude of gage, about 

500 feet.

Drainage area.- 72 square miles.

Records available.- April 1940 to September 1948.

Extremes.- Maximum discharge during year, about 4,000 second-feet Dec. 1 (gage height, 

5.4a feet); minimum daily discharge, 0.1 second-foot July 24 to Aug. 9.

 1940-47: Maximum discharge, that of Dec. 1, 1947; minimum daily discharge, 0.1 

second-foot Oct. 12-23, 1940, Oct. 19-27, 1944, July 24 to Aug. 9, 1948.

Remarks.- Records good except those above 200 second-feet, which are poor. Water diverted 

rrom Cottonwood Creek by Dulzura conduit discharges to Jamul Creek via Dulzura Creek 

and is included in records for this station (see p. 19).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

?

4

5

6

7

fi

9

10

11

12

13

14

15

16

17

Ifi

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

42

42

42

42

41

41

41

41

41

41

41

40

40

40

40

40

40

40

39

39

39

39

39

39

38

39

40

40

40

40

40

Nov.

40

40

40

40

39

38

38

38

38

38

38

40

39

38

38

38

38

37

37

37

37

37

37

37

38

38

38

38

38

38

-

Dec.

325

f!25

f23

28

68

20

16

16

14

13

g6

g4

S3

gz

fl.7

1.4

1.4

1.5

1.1

20

26

30

32

31

31

31

32

32

32

32

32

Jan.

32

32

32

30

30

30

30

29

29

28

28

28

28

28

27

27

27

26

26

26

26

26

25

25

25

26

26

26

26

26

26

Feb.

26

26

23

29

38

37

28

26

27

34

34

35

35

34

32

31

31

31

32

32

32

32

32

32

32

32

32

32

32

_

-

Month

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

Calendar year 1947 ......................

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

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

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

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

Water year 1947-48 ......................

Mar.

32

32

32

33

33

34 '

35

34

35

34

34

34

34

36

29

30

31

24

30

29

29

32

36

37

31

29

32

35

35

35

34

Apr.

35

34

35

35

35

35

35

35

36

36

37

33

33

33

33

33

33

33

33

34

35

35

36

36

36

36

36

37

37

36

-

Secondfoot-days

1,031.1

13,873.4

909

320 2

1,114

11,517

May

38

36

36

35

35

35

35

34

34

34

34

34

34

34

33

33

33

34

34

34

34

58

58

38

33

25

36

35

34

35

35

Maximum

325

325

42

325

June

35

35

34

34

33

33

33

33

33

33

33

33

32

32

34

34

34

33

33

33

33

33

32

32

32

31

30

19

7.1

25

-

Minimum

1.1

1.1

23

25

32

.1

July

31

34

34

34

34

33

33

34

34

f9.2

a3.0

al.S

al.O

a. 8

a. 6

a. 5

a. 4

a. 3

a.Z

a. 2

a. 2

f .2

.2

.1

.1

.1

.1

.1

.1

.1

.1

Aug.

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.7

26

37

39

40

40

40

40

41

41

42

41

41

41

40

41

40

4039'

38

38

38

Mean

33.3

38.0

34 9

37.1

31.5

Sept.

38

40

39

38

38

38

38

38

39

39

38

36

37

35

34

33

33

33

32

32

32,

32

35

39

41

42

42

41

41

41

-

Runoff in 

acre-feet

2,050

27,530

2,210

22,830

^ No gage-height record; discharge computed on basis of probable discharge recession and by comparison with records for Dulzura conduit near Dulzura.

f Computed on basis of partly estimated gage-height record, 

g Computed from graph based on gage readings.

889419 O - 50 - 3
22 OTAY RIVER BASIN

(">tay River at Savage Dam, Calif.

Location.- Staff gages at dams of two contiguous reservoirs, the lower one'being at

 lat. 32°36'35", long. 116°55'30", in NWi: sec. 18, T. 18 S., R. 1 E. , at Savage Dam, 

at Lower Otay Reservoir. Datum of gage <jt Upper Otay Dam is 477.5 feet above mean 

sea level. Datum of gage at Savage Dam is 347.2 feet above mean sea level.

Drainage area.- 98 square miles at Savage Dam.

Records available.- October 1945 to September 1948. October 1936 to September 1946, computed runorr rrom Otay River Basin above Savage Dam.

Remarks.- Records of runoff represent all water reaching both Otay Reservoirs, including

 rainfall on reservoir surfaces and water brought in by Dulzura Conduit, computed on 

basis of records of storage, release (draft), spill, leakage, and evaporation. Gage 

height of spillway of upper reservoir, 72.02 feet; gage height of permanent spillway 

of -lower reservoir, 137.50 feet. Capacity and area ratings for Upper Otay Reservoir 

are dated June 1916; for Lower Otay Reservoir, October 1922. Capacities of the reservoirs at spillway levels, as shown by these ratings, are 2,590 acre-feet in the upper 

reservoir and 49,130 acre-feet in the lower reservoir. Dead storage, 270 acre-feet 

below lowest outlet of upper reservoir at gage height, 43.32 feet, and 1,896 acre-feet 

below lowest outlet of lower reservoir at gage height, 47.85 feet, a total of 2,166 

acre-feet dead storage, included in these records. Gages read daily about 7 a.m. 

Dulzura Conduit (see p. 19) carries water from Barrett Reservoir on Cottonwood Creek 

(see p. 15) to Dulzura Creek, whence the water is carried to Lower Otay Reservoir by 

Jamul Creek (see p. 21). No diversion above reservoirs. Water drawn from these resei 

voirs is used for municipal supply by city of San Diego.

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

Monthly runoff, water year October 1947 to September 1948

Month

December. .......

Calendar year

May

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

Water year 

1947-48. ......

Upper Reservoirt

Gage 

height 

(feet)

61.56 

61.17 

60.88

_

62.45 

62.28 

62.24 

62.18 

61.78 

61.25 

60.71 

60.01 

47.14 

45.01

-

Contents 

(acrefeet)

1,376 

1,334 

1,302

_

,473 

,455 

,450 

,444 

,400 

,343 

,284 

,208 

400 

328

-

Lower Reservoirt

Gage 

height 

(feet)

123.26 

122.74 

122.29

_

121.98 

120.71 

119.94 

119.15 

118.37 

117.50 

116.37 

113.13 

112.46 

111.92

-

Contents 

(acrefeet)

35,080 

34,636 

34,256

.

33,995 

32,947 

32,323 

31,693 

31,077 

30,396 

29,524 

27,097 

26,612 

26,224

-

Total 

contents 

(acrefeet)

36,456 

35,970 

35,558

.

35,468 

34,402 

33,773 

33,137 

32,477 

31,739 

30,808 

28 , 305 

27,012 

26,552

-

Change

contents 

(acrefeet)

-486 

-412 

-90

-5,742

-1,066 

-629 

-636 

-660 

-738 

-931 

-2,503 

-1,293 

-460

-9,904

Draft 

(acrefeet)

2,641 

2,474 

2,586

30,630

2,681 

2,532 

2,654 

2,597 

2,554 

2,522 

2,631 

2,357 

2,274

30,543

Evaporation 

(acrefeet)

271 

208 

169

3,741

144 

178 

227 

312 

378 

354 

389 

342 

299

3,271

Spill 

plus 

leakage 

(acrefeet)

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Runoff 

(acrefeet)

2,426 

2,270 

2,665

28,629

1,759 

2,081 

2,285 

2,249 

2,194 

1,945 

517 

1,406 

2,113

23,910

t On first day of month.

SWEETWATER RIVBR BASIN

Sweetwater River at Loveland Dam, near Alpine, Calif.

Location.- Staff gage, lat.. 32°46'50", long. 116°47 I 40", in SW^NEij sec. 17, T. 16 S., R. 

a K., at Loveland Dam, 4 miles southwest of Alpine. Datum of gage is 1,215 feet above 

mean sea level.

Drainage area.- 100 square miles.

Keeords available.- October 1944 to September 1948.

KemarKs.- Heeoras of runoff represent all water reaching reservoir, including rainfall on 

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

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

1946. Capacity of reservoir at spillway level (gage height, 140.00 feet), 25,387 acrefeet. Dead storage, 123 acre-feet below lowest outlet at gage height, -1.5 feet, 

included in these records. Gage read daily about 8 a.m. No diversion above reservoir. 

Water is released down Sweetwater River to Sweetwater Reservoir as required.

Cooperation.- Basic records furnished by California Water Sc Telephone Co.

Kevisions (water years).- W 1091: 1945, 1946.

Monthly runoff, water year October 1947 to September 1948

October. .. .^ ........

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

Calendar year 1947

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

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

Water year 1947-48

t On first day of

Gage height 

(feet)

25.81

25.92

-

27 52

32 22

7.84

-

nonth.

Contents 

(acre-feet)

768

773

-

245

252

250

250

-

In

contents 

(acrefeet)

+1

+35

-3,758

518

Draft

(acrefeet)

0

0

4,486

997

(acrefeet)

16

10

214

132

Spill

plus

leakage 

(acrefeet)

0

0

0

0

Runoff

(acrefeet)

17

45

942

611
SWEETWATER RIVER BASIN 2J 

Sweetwater River at Sweetwater Dam, Calif.

Location.- Staff gage, lat. 32°41'20", long. 117°00>35", at Sweetwater Dam, in La Nacion 

urant, 6 miles east of National City, San Diego County, and 8 miles upstream from mouth. 

Datum of gage is 149.08 feet (revised) above mean sea level.

Drainage area.- 181 square miles.

Records available.- October 1887 to September 1948.

Average discharge.- 61 years, 23.4 second-feet.

Re_marK:s.- Records of runoff represent all water reaching Sweetwater Reservoir from basin 

oT~Sweetwater River, including rainfall on reservoir surface and water passing down 

Sweetwater River from Loveland Dam, but not including imported Colorado River water, 

computed on basis of records af storage, release (draft), spill, leakage, and evaporation. Colorado River water delivered to this reservoir during year, as shown in 

monthly table, is deducted in computation of runoff. The first water from Colorado 

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

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

feet), 27,689 acre-feet. Dead storage, 4 acre-feet below lowest outlet at gage height 

19.7 feet, included in these records. Gage read daily about 8 a.m. No diversion above 

reservoir. Regulation at-Lo/eland Dam (see preceding page). Water is released as 

required for irrigation and domestic use in Chula Vista, National City, and contiguous 

areas.

Cooperation.- Basic records furnished by California Water & Telephone Co. 

Revisions (water years).- W 811: 1928-32. W 1091: 1944-46.

Monthly runoff, water year October 1947 to Septe

Month

Calendar year 1947

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

Water year 1947-48

Sweetwater 

Reserve Irt

Gage 

height 

(feet)

47.80 

43.91 

41.01

-

41.21 

40.99 

41.23 

41.34 

40.79 40.67 ' 

40.28 

39.91 

39.61 

38.71

-

Contents 

(acrefeet)

3,770 

2,760 

2,087

-

2,131 

2,083 

2,136 

2,160 

2,039 

2,013 

1,931 

1,854 

1,792 

1,615

-

Change 

In 

contents 

(acrefeet)

-1,010 

-673 

+44

-5,896

-48 

+53 

+24 

-121 

-26 

-82 

-77 

-62 

-177

-2,155

Draft 

feet)

948

603 

340

9,026

64 

49 

-26 

425 

889 

942 

930 

959 

1,000

7,123

Evaporation 

(acrefeet)

86 

57 

41

1,668

47 

42 

51 

82 

103 

102 

126 

112 

91

940

Spill 

plus 

leakage 

(acrefeet)

3

3 

3

36

4 

3 

1 

2 

1 

1 

1 

2 

2

26

Colorado 

River water 

excluded 

(acre-feet)

0 

0 

0

0

0 

0 

0 

314 

921 

951 

956 

986 

898

5,026

Runoff 

(acrefeet)

27 

-10 

428

4,834

67 

147 

50 

74 

46 

12 

24 

25 

18

908

t On first day of month.

Note.- Emergency water from city of San Diego ente 

system causing negative figure of draft for March.

through interconnected outlet
24 SAN DIEGO RIVER BASIN

San Diego River at El Capitan Dam, Calif.

Location.- Staff gage, lat. 32°53'00", long. 116°48'30", in NE^ sec. 7, T. 15 S., R. 2 E., 

at El Capitan Dam, 7 miles east of Lakeside. Datum of gage is 553.0 feet above mean 

sea level.

Drainage area.- 190 square miles.

Records available - October 1945 to September 1948. October 1936 to September 1946, records computed from same basic data excluded greater part of flow released from Cuyamaca 

Reservoir.

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

or san Diego River above El r'apitan Dam. including rainfall on reservoir surface and 

water passing down Boulder Creek from Cuyamaca Dam, computed on basis of lecords of 

storage, release (draft), spill, leakage, and evaporation. Capacity and area ratings 

for the reservoir are dated April 1935. Capacity of reservoir at spillway level (gage 

height, 197.00 feet), 116,448 acre-feet. Dead storage, 147 acre-feet below lowest outlet at gage height 16.0 feet, included in these records. Gage read daily about 7 a.m. 

Practically no diversion above this reservoir. Partial regulation on Boulder Creek at 

Cuyamaca Dam (see p. 26). Water is released as required for municipal use and irrigation.

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

Monthly runoff, water year October 1947 to September 1948

Month

Calendar year 1947,.,.

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

Water year 1947-48....

El Capitan

Gage height 

(feet)

-

54.41

-

Reservoirt

Contents 

(acre-feet)

-

5,550

-

Change

in

contents 

(acrefeet)

2 371

-23,694

-9,505

Draft

(acrefeet)

2 134

1 ' 213

22,895

1 437

10,159

Evapo-

(acrefeet)

3,575

1,753

Spill 

plus

leakage 

(acrefeet)

132

57

Runoff

(acrefeet)

3.OO8

54

2,493

t On first day of the month.

Note.- For months when inflow to reservoir was small and other elements were large, negative or 

discordant figures of runoff may appear. To the extent that such discrepancies may be attributed tc 

changes in reservoir capacity since the time of rating used, or to uncertainties in the rating, 

quantities too small for periods of falling stage in reservoir are compensated by quantities too 

large for periods of corresponding rising stage.
SAN DIEGO RTVER BASIN 25

San Diego River near Santee, Calif.

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

11V"U3'25", in the 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 1948 (incomplete p^ior to 1920).

Average discharge.- 33 years (1912-15, 1917-19, 1920-48), 35.3 second-feet.

Extremes.- Maximum discharge during year, 190 second-feet Dec. 1 (gage height, 1.21 feet); 

practically no flow during several months.

1912-48: Maximum discharge, 70,200 second-feet Jan. 27, 1916 (gage height, 25.1 

feet, site and datum then in use); practically no flow for several months each year 

except for a small amount of ground water that was forced to surface.

Remarks.- Records fair. Storage and diversions above station for city of San Diego water 

supply and La Mesa, Lemon Grove, and Spring Valley Irrigation District.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

>e0.01

Nov.

>e0.01

 e.02

e .03

-

Dec.

31

41

4.5

2.4

95

18

9.1

4.5

3.8

3.0

2.4

1.8

1.4

1.4

1.0

.7

.7

.5

.5

.5

.4

.4

.5

.5

.4

.4

I ..

1

Jan.

. aO.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

"Feb.

0.4

.2

.2

.4

.5

9.1

4.5

1.8

1.0

1.0

1.0

.7

.7

.7

.4

.2

.5

.7

.7

.7

.7

.7

.5

.4

.4

.2

.2

.2

.4

_

-

Month

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

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

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

Calendar year 1947. .....................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

0.4

.4

.4

.5

.5

.4

.4

.2

.2

.4

.4

.4

.2

.4

2.4

.7

.4

.5

.4

.2

.2

.1

.1

.2

.4

.2

.2

.2

.2

.2

.4

Apr.

0.2

.2

.2

.4

.5

.5

.5

.5

.5

.4

.4

.2

.2

.2

.2

.2

.2

.2

.2

a.l

-

Secondfoot-days

0.31

.52

227.8

245.17

7.9

29.1

12.2

7.0

.62

.30

0

0

O

285.75

May

, aO.O2

Maximum

_

'95

95

9.1

2.4

.5

_

0

0

0

95

June

.

1

\ aO.Ol

|

j

, e.Ol

-

Minimum

.

_

_

0

.2

.1

_

_

0

0

o

0

July Aug.

Mean

0.01

.017

7.35

.67

.25

1.00

.39

.23

.02

.01

O

0

O

.78

Sept.

Runoff in 

acre feet

0.6

1.0

452

486

16

58

24

14

1.2

.6

0

O

0

567

a No gage-height record: discharge computed on basis of 2 discharge measure 

e Dally discharge less than 0.1 second-foot.

ents and Interpolation.
26 SAN DIEGO RIVER BASIN

Boulder Creek at Cuyamaca Reservoir, near Julian Calif.

Location.- Staff gage, lat. 32°59'20", long. 116°35'10", in NE^ sec. 5, T. 14 S., R. 4 E., 

at Uuyamaca Dam, 7 miles south of Julian. Altitude of spillway, 4,633 feet.

Drainage area.- 12.0 square miles.

Records available.- October 1935 to September 1948 (inflow to Cuyamaca Reservoir; rainfall 

on reservoir surface deducted October 1939 to September 1944). June 1912 to September 

1926 (outflow from Cuyamaca Reservoir).

Remarks.- Records of runoff represent all water reaching reservoir, including rainfall on 

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

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

made about 1894: modified on basis of coordination of measured draft in April 1947 and 

April 1948 and corresponding reduction in reservoir gage height. Capacity of reservoir 

at spillway level (gage height, 35.42 feet), 11,600 acre-feet in 1894. No dead storage 

remains below level of outlet gate. Gage read daily about 7 a.m.; read three times 

daily Apr. 15-19, when reservoir was emptied. Small diversions for local use near dam. 

Water is released" down Boulder Creek as required.

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

District.

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

Monthly runoff, water year October 1947 to September 1948

Month

Calendar year 1947. . . .

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

Water year 1947-48....

Cuyamaca Reservoir t

Gage height 

(feet)

11.33 

10.88 

10.67

-

11.29 

11.08 

12.67 

15.58 

12.67 

12.17 

11.50 

10.71 

9.67 

9.00

-

Contents 

(acre-feet)

4 

2

1

-

4 

3 

25 

299 

25 

13 

5 

1 

0 

0

-

Change 

in 

contents 

(acrefeet)

-2 

-1 

+3

-641

-1 

+22 

+274 

-274 

-12 

-8 

-4 

-1 

0

-4

Draft 

(acrefeet)

0 

0 

0

433

0 

0 

0 

347 

0 

0 

0 

0 

0

347

Evaporation 

(acrefeet)

2

1 

1

514

1 

4 

26 

35 

15 

8 

4 

] 

0

98

Spill 

plus 

leakage 

(acrefeet)

0 

0 

0

9

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Runoff 

(acre"- 

feet)

0 

0 

4

315

0 

26 

300 

108 

3 

0 

0 

0 

0

441

t On first day of month.
SAN DIEGO RIVER BASIN 27 

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

Location - Staff gage, lat. 32°S4'40", long. 116°55'35", In sec. 31, T. 14 S., R. 1 E., at 

:ian Vicente Dam, 0.5 mile north of Foster. Datum of gage is 460.0 feet above mean sea 

level.

Drainage area.- 75 square miles.

Records available.- October 1942 to September 1948. January to April 1915 and October 1936 

to September it)41 at same sjte prior to construction of dam, published as San Vicente 

Creek at Poster. October 1941 to January 1943 at site 1 mile upstream, published as San

RpmarkE.- Record? of inflow represent all water reaching San Vicente Reservoir, not only 

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

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

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

table, is included in figures of Inflow. The first water from Colorado River reached 

this reservoir Nov. 26, 1947. Capacity and area ratings for reservoir are dated 1943. 

Capacity of reservoir at spillway level (gage height, 190.00 feet), 90,230 acre-feet. 

Deid storage, 206 acre-feet below lowest outlet at gage height 29.0 feet, included in 

these records. Gage read daily about 7 a.m. No diversion above reservoir. Water is 

released as required for municipal use.

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

Monthly inflow, water year October 1947 to September 1948

Month

Calendar year 1947....

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

Water year 1947-48....

San V 

Rese

Gage 

height 

(feet)

-

133.13

-

rvoirt

Contents 

(acrefeet)

-

38,477

-

Change

contents 

(acrefeet)

+3,410

-

+25,931 '

(acrefeet)

-67

17,025

Evap'oaorefeet)

2,554

443

548

3,790

Spill

leakage 

(acrefeet)

0

0

Total

inflow 

(acrefeet)

339

5,897

5 521

3 923 -

46,746

Colorado

River water 

included 

(acre-feet)

5,260

47,362

t On first day of month.

Mote.- The outlet systems of San Vicente and El Capitan Reservoirs are interconnected and water 

from El Capitan is sometimes transferred into San Vicente. Draft here shown is the algebraic sum of 

quantities of water leaving and entering San Vicente through the outlet system.

Colorado River water, conducted to San Vicente Reservoir by the San Diego aqueduct, is measured at 

the head of the aqueduct rather than at the point of discharge into the reservoir.

The runoff from the basin of San Vicente Creek is equal to the algebraic sum of (1) change in contents, (2) draft, (3) evaporation, and (4) spill plus leakage, minus (5) the quantity imported from 

Colorado River. However, computation of runoff from San Vicente Creek Basin using the figures in the 

above table give results that may be seriously in error, frequently being negative. This arises 

primarily from the difficulty of computing the runoff from San Vicente Creek Basin as the residual of 

several larger quantities which are not susceptible of measurement with a precision necessary to produce a final answer within reasonable limits of accuracy. The natural runoff from this basin during 

the current year was small.
28 SAN DIEGUITO RIVER BASIN

Santa Ysabel Creek near Mesa Grande, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 33°07 I 25", long. 116 0 47'45", 

about on line between sees. 17 and 20, T. 12 S.-, R. 2 E., 0.5 mile upstream from Black 

Canyon Creek, 1 mile downstream from unfinished Sutherland Dam, and 4 miles southwest 

of Mesa Grande. Altitude of gage, about 1,700 feet.

Drainage area.- 58 square miles.

Records available.- October 1936 to September 1948. December 1912 to Septembei- 1928 at 

site 1 mile upstream.

Average discharge.- 27 years (1913-28, 1936-43), 29.6 second-feet.

Extremes.- Maximum discharge during year, 75 second-feet Feb. 6 (gage height, 1.73 feet); 

no flow during several months.

1912-24, 1936-48: Maximum discharge, 21,000 second-feet Jan. 27, 1916, by slopearea method; no flow at times.

Remarks.- Records good. Small diversions above station.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.5

.5

.5

.5 .

.6

.6

.6

-

Dec.

1.2

3.2

1.6

2.1

11

6.4

3.3

3.0

3.0

2.2

1.3

1.6

1.5

1.5

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.2

1.1

1.0

.9

.9

1.0

1.0

1.1 1.1

Jan.

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.0

.0

.0

.0

.0

.1

.1

.1

.1

.2

.2

.2

.2

.3

.4

.3

.3

.3

.3

Feb.

1.3

1.6

1.9

1.6

4.5

40

12

5.5

4.2

4.0

4.0

3.3

2.3

2.8

2.5

2.4

2.2

2.2

2.2

2.2

2.1

2.1

2.2

2.3

2.0

1.9

1.9

2.1

2.9

_

-

Month

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

Calendar year 1947. ......................

Janu 

Febr

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

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

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

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

Water year 1947-48 .... ...................

Mar.

2.4

2.2

2.3

2.1

1.3

1.6

1.7

1.6

4.0

3.3

2.7

2.1

2.0

9.2

21

9.2

6.9

7.9

5.5

10

5.1

4.2

3.8

6.4

18

7.9

5.9

5.1

5.1

4.8

4.5

Apr.

4.2

4.0

3.7

23

11

10

3.5

7.4

7.4

6.9

7.9

7.9

5.9

4.5

3.6

3.3

3.1

3.0

7.9

2.9

2.9

3.1

3.5

3.2

2.7

2.4

2.0

2.3

4.8

3.8

-

Secondfoot-days

63.9

745.9

36.0

£K i

0

606.6

May

3.1

2.7

2.4

2.0

1.9

1.6

1.6

1.8

1.3

.9

.7

.5

.5

.5

.3

.2

.2

.5

.3

.3

.0

.4

.3

.3

.2

.3

.3

.2

.1

.1

.1

Maximum

11

39

1.4

0

40

June

0.5

2.9

2.0

1.3

1.0

1.0

1.0

.7

.3

.2

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

Minimum

.9

0

1 0

0

0

July Aug.

Mean

2.06

2.04

1.16

0

1.66

Sept.

Runoff in 

acre-feet

127

1,480

71

52

0

1,200

Peak discharge (base, 110 sec.-ftJ.- No peak above base.
SAN DIEGUITO RIVER BASIN

Santa Ysabel Creek near Ramona, Calif.

Location.- Water-stage recorder, lat. 33°06'20", long. 116°51'30", in NE-jj sec. 27, T. 12 S. 

K. IK., 1.5 miles downstream from Temescal Creek and 4.5 miles north of Ramona. Datum 

of gage is 847.88 feet above mean sea level (levels by city of San Diego Water Department ).

Drainage area.- 110 square miles.

Records available.- February 1912 to February 1923, October 1943 to September 1948.

Average discharge.- 15 years (1912-22, 1943-48), 38.5 second-feet.

Extremes.- Maximum discharge during year, 96 second-feet Feb. 6 (gage height, 1.83 feet); 

no now during several periods.

1912-23, 1943-48: Maximum discharge, 28,400 second-feet Jan. 27, 1916 (gage height, 

14.0 feet); no flow during several months 1921, 1946, 1947, and 1948.

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

Small diversions above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

R

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

?R

29

30

31

Oct. Nov.

0

0

o

0

0

0

0

0

0

0

o

o

0

0

0

0

0

o

o

0

o

.1

.1

.1

.1

.1

.2

.2

.2

.2

-

Dec.

.5

1.5

3.0

4.O

11

8.4

6.1

4.3

3.8

2.8

2.2

2.0

1.7

1.4

1.4

1.4

1.3

1.3

1.4

1.4

1.4

1.6

1.4

1.1

.8

.7

.6

.7

.8

1.4

1.7

Jan.

.7

.9

.0

.0

.0

.0

.9

.9

.7

.7

.7

.7

.6

.4

.3

.4

.4

.4

.4

.3

.3

.3

.6

.6

.7

.9

.9

.0

.9

.0

.2

Feb.

2.2

2.6

3.0

3.0

5.6

55

21

12

7.6

6.O

6.3

5.4

4.6

4.3

4.3

4.1

3.6

3.6

3.4

3.4

3.4

3.2

3.2

3.2

3.0

2.8

2.6

3.2

4.6

-

-

Month

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

Calendar year 1947 ......................

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

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

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

Water year 1947-48 ......................

Peak discharge (base, 110 second- feet ).- N

Mar.

4.3

3.6

3.6

3.4

2.8

2.6

2.6

2.6

4.3

7.6

4.8

3.4

3.0

10

30

16

8.7

8.4

6.0

8.4

5.7

4.3

3.8

4.1

23

12

9.7

8.1

7.8

7.6

7.3

Apr.

6,7

6.5

8.4

29

14

11

9.0

9.0

6.7

6.2

7.0

7.6

6.2

5.8

5.5

5.1

4.4

4.2

4.2

4.2

4.0

4.2

4.6

4.9

4.2

3.7

3.3

3.3

5.3

6.0

-

Secondfoct-days

0

73.1

1,119.9

190.2

204.2

43.2

14.3

0

0

0

808.6

May

4.4

4.0

3.8

3.3

2.9

2.6

2.3

2.3

2.3

1.9

.

1^ al.l

1

J

["

1

1

I"

Maximum

o

ll

45

29

0

0

0

55

3 peak above base.

June

aO.4

1.2

3.7

2.0 \

( al.4

J

.9

\

1 a. 6

;

(..,

,,

0

0

0

0

0

0

o

o

0

0

-

Minimum

.5

O

2.2

3.3

O

0

0

July Aug.

Mean

2.36

3.07

6.81

O

O

2.21

Sept.

Rnnoff in 

acre feet

145

2,220

0

1,600
30 SAN DIEGUITO RIVER BASIN

Santa Ysabel Creek near San Pasqual, Calif.

Location^- Water-stage recorder and concrete control, lat. 33°05'00", long. 116°65'00", 

ln S&t- ''ec. 31, T. 12 S., R. IE., 1.5 miles downstream from Roden Canyon and 2 miles 

east of San Pasqual. Altitude of gage, about 500 feet (from topographic map).

Drainage area.- 128 square miles.

Hec ? r,? s avalla*)le -- April 1947 to December 1948 (irrigation seasons only). December 

I9ut> to September 1912 at site 0.25 mile downstream, published as Santa Ysabel Creek 

near Escondido.

Remarks.- Records good.

Discharge, in second-feet, April to December 1948

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Jan. Feb. Mar.

t3.5

Apr.

_

_

_

-

.

_

-

_

-

_

_

_

_

-

_

_

f3.5

3.3

3.3

3.6

4.4

4.7

3.9

3.2

2.9

2.8

6.0

7.1

May

5.2

4.2

3.8

3.1

2.4

2.1

2.1

2.0

2.2

1.6

1.2

.8

.6

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

Month

April 19-30 ................................ 

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

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

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

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

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

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

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

December 1-7 ...............................

The period ...............................

June

0.2

.7

3.9

2.6 

1.4

1.1

.9

.7

.4

.3

.2

.1

I e.05

 e.02

fO

0

0

0

0

0

0

0

0 -

July

Secondfoot-days

48.7

12.77

0

0

0

3.10

.53

.21

.

Aug.

Maximum

7.1 

5.2

3.9

0

0

0

2.3

-

-

 1

Sept.

Minimum

2.8 

.1

0

0

O

O

0

-

-

Oct. Nov.

0 L

0 1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.3

.2

. e.05

> eO.04

1-

. e.Ol

-

Dec.

^

I eO.03

1

-

-

-

_

_

_

7

Mean Runo" in 

acre-feet

4.06 97 

1.12 69

.426 25

0 0

0 0

0 0

.100 6.1

.018 1.1

.030 .4

199

t Result of discharge measurement.

e Dally discharge less than 0.1 second-foot.

f Computed on basis of partly estimated gage-height recond.

San Dieguito River near San Pasqual, Calif.

Location.- Water-stage recorder, lat. 33°04'00", long. 117°02'05", in San Bernardo Grant,

 lib miles downstream from Bach Creek, 4.5 miles southeast of Escondido and 5 miles 

west of San Pasqual, San Diego County. Altitude of gage, about 325 feet (from topogr^phic map).

Drainage area.- 5>50 square miles.

Kecords available.- April 1947 to December 1948 (irrigation seasons only).

Hemar¥sT- No flow during period Apr. 19 to Dec. 7, 1948. Diversions for irrigation and

 pumping from wells along river in San Pasqual Valley. There is an undetermined amount 

of underflow at this station.
SAN DIEGUITO RIVER BASIN 31 

San Dieguito River at Lake Hodges, Calif.

Location - Staff gage, lat. 33°02'40", long. 117°07'40", in NW£ sec. 18, T. 13 S., R. 2 

w., at Lake Hodges Dam, 5.5 miles southwest of Escondido. Datum of gage is 200.0 feet 

above mean sea level.

Drainage area.- 303 square miles.

Records available.- October 1931 to September 1948. January 1916 to December 1918, records 1'rom river gaging station at site of Hodges Dam. January 1919 to September 1931, 

records of runoff excluded rainfall on reservoir surface.

Remarks.- Records of runoff represent all water reaching the reservoir, including rainfall 

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

leakage, and evaporation. Capacity and area ratings for reservoir are same as have 

been used since dam was built in 1919. Capacity of reservoir at spillway level (gage 

height, 115.00 feet), 37,530 acre-feet. Dead storage, 1,370 acre-feet below lowest 

outlet at gage height, 54.0 feet, included in these records. Gage read daily about 

7 a.m. Diversions for irrigation above Lake Hodges. Water drawn from Lake Hodges 

passes through a conduit to San Dieguito reregulating reservoir, from which it is released as required for municipal use.

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

Revisions (water year).- W 1091: 1946. Revised figures for the water year 1947, superseeling tnose published in Water-Supply Paper 1091, are given in the following table:

Monthly runoff, water year October 1946 to September 1948

Month

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

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

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

Water year 1946-47...

Calendar year 1947...

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

Water year 1947-48...

Lake Hodgest

Gage height 

(feet)

106.89 

105.52 

105.18 ,

104.80 

104.54 

104.28 

104.21 

103.04 

101.22 

99.20 

96.83 

94.45

-

92.21 

90.41 

88.92

-

88.73 

87.45 

86.20 

84.87 

82.68 

79.99 

77.15 

73.72 

69.73 

65.40

-

Contents 

(acre-feet)

27,803 

26,346 

25,993

25,602 

25,337 

25,073 

25,003 

23,845 

22,129 

20,322 

18,351 

16,522

-

14,920 

13,712 

12,765

-

12,648 

11,878 

11,159 

10,432 

9,317 

8,088 

6,934 

5,705 

4,458 

3,317

-

Change 

in 

contents 

(acrefeet)

-1,457 

-353 

-391

-265 

-264 

-70 

-1,158 

-1,716 

-1,807 

-1,971 

-1,829 

-1,602

-12,883

-1,208 

-947 

-117

-12,954

-770 

-719 

-727 

-1,115 

-1,229 

-1,154 

-1,229 

-1,247 

-1,141

-11,603

Draft 

(acrefeet)

1,087 

593 

515

245 

430 

850 

910 

1,146 

1,137 

1,204 

1,168 

1,131

10,416

912 

759 

266

10,158

599 

661 

697 

885 

938 

893 

920 

956 

893

9,379

Evaporation 

(acrefeet)

387 

216 

213

163 

156 

253 

350 

404 

443 

530 

460 

316

3,891

190 

131 

158

3,554

101 

94 

135 

157 

230 

203 

231 

171 

137

1,938

Spill 

plus 

leakage 

(acrefeet)

1 

1 

2

2 

2 

2 

2 

2 

1 

1 

2 

2

20

2 

1

1

20

1 

1 

1 

1 

1 

1 

1 

0 

0

11

Runoff 

(acrefeet)

18 

457 

339

145 

324 

1;035 

104 

-164 

-226 

-236 

-199 

-153

1,444

-104 

-56 

308

778

-69 

37 

106 

-72 

-60 

-57 

-77 

-120 

-111

-275

t On first day of month.

Mote.- For months when Inflow to reservoir was small and other elements were large, negative or 

discordant figures of runoff may appear. To the extent that such discrepancies may be attributed to 

changes in reservoir capacity since the time of the rating used, or to- uncertainties in rating,

large for periods of corresponding rising stage.
32 SAN DIEGUITO RIVER BASIN

Guejito Creek near San Pasqual, Calif.

Location.- Water-stage recorder and concrete control, lat. 33"OS<55", long. 116°57'10", in 

nEtfsec. 23 (unsurveyed), T. 12 S., R. 1 W., and 2 miles north of San Pasqual. Altitude of gage, about 700 feet (from topographic map).

Drainage area.- 24 square miles.

Records available.- December 1946 to September 1948.

Extremes.- Maximum discharge during year, 8.5 second-feet Dec. 5 (gage height, 2.18 feet); 

no now during several months.

1946-48: Maximum discharge, 10 second-feet Dec. 28, 1946, Mar. 21, 1947; no flow 

during several periods.

Remarks.- Records good below 7.5 second-feet, fair above. Diversion a quarter'of a mile 

above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

,e0.03

.1

.2

.3

.4

. C

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

Nov.

0.2

.2

.2

.2

.2

.2

.1

.1

.5

.5

.4

.4

.3

.4

.4

.4

.4

.4

.4

.4

.4

.7

.6

.5

.4

.4

.4

.4

.4

.4

"

Dec.

0.7

1.0

.4

2.5

5.5

2.0

1.0

1.0

.7

.6

.5

.4

.4

.5

.5

.5

.5

.5

.4

.4

.5

.5

.3

.4

.3

.3

.3

.4

.4

.4

.2

Jan.

0.3

.5

.5

.5

.5

.2

\

I e.02

/

.3

.4

.3

.3

.3

.4

.4

.4

.4

.1

}-«

.2

.5

.4

.3

.4

.4

.4

Feb.

0.4

.5

.5

.4

2.0

4.0

1.0

.7

.6

.7

.6

.5

.5

.5

.5

.5

.4

.4

.4

.5

.5

.3

e.03

,

.5

.8

_

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

0.6

.6

.6

.5

.4

.4

.4

.5

1.0

.7

.5

.4

.6

2.0

1.8

.8

.7

.6

.8

.8

.6

.6

.5

1.5

2.0

.8

.6

.6

.7

.6

.6

Apr.

0.6

.6

1.4

1.6

.8

.6

.6

.5

.5

.5

.5

.5

.4

.2

 e.04

'.1

.1

.1

-

Second 

foot-days

3.70

10.9

24.0

207.29

8.52

17.85

23.8

10.12

6.1

3.57

.07

0

O

108.63

May

0.1

.3

.4

.3

.2

.2

.2

.3

.3

.3

.3

.2

.2

.2

.1

.1

.1

.1

.2

.2

.2

.2

.1

.2

.2

.2

.2

.2

.1

.1

.1

Maximum

0.4

.7

5.5

8.3

.5

4.0

2.0

1.6

.4

.6

0

0

5.5

June

0.3

.6

.4

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

.

V e.07

/

 e.04

-

Minimum

0.1

.2

0

.4

.1

0

0

0

0

July

. eO.Ol

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

0.119

.36

.77

.568

.275

.616

.77

.337

.20

.119

.002

0

0

.297

Sept.

Runoff in 

acre feet

7.3

22

48

412

17

35

47

20

12

7.1

.1

0

0

216

e Daily discharge less than 0.1 second-foot.
SAN DIEGUITO RIVER BASIN 33

Guejito Creek at San Pasqual, Calif.

Location.- Water-stage recorder, lat. 33°05'35", long. 116°57'45", in Nlrf^ sec. 35, T. 12 

5., K. 1 W., at mouth, at highway bridge 1 mile west of San Pasqual. Altitude of gage, 

about 410 feet (from topographic map).

Drainage area.- 28 square miles.

Records available.- February to September 1915, October 1916 to September 1917, October 

1946 to September 1948.

Extremes.- Maximum discharge during year, 4.1 second-feet Dec. 5 (gage height, 2.70 feet); 

no 1'low during most of year.

1915, 1916-17, 1946-48: Maximum daily discharge, 118 second-feet Feb. 10, 1915, 

estimated; no flow during several months of each year.

Remarks.- Records fair. Diversion about 2 miles above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 194S

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

0

0

0

.3

1.1

.1

.1

.1

0

0

o

0

0

0

0

o

0

o

0

0

0

0

0

0

0

0

o

0

0

0

0

Jan. Feb.

o

0

0

0

.3

.8

.1

f .1

a.l

f .1

0

0

o

0

o

0

0

0

0

0

0

o

0

0

0

0

o

.1

0

-

-

Month

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

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

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

Calendar year 1947 ......................

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

Februarv. ........... ...... _ . _ . . _ . _ .

Hare 

Apri

h. .....................................

1 .

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

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

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

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

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

Water year 1947-48 ......................

Mar.

> eo.05

Apr.

. eO.07

-

Secondfoot-days

0

0

1.7

90.65

0

1 . 6

1.55 

2.10

.20

0

0

0

0

7.15

May

, e0.02

O

0

0

0

O

D

0

0

o

0

0

o

0

0 '

0 , o"

'0

0 -

0 i

0o .

Maximum

0

0

1.1

5.2

0

-'

0

0

0

0

1.1

June

Minimum

0

0

0

0

0

o

0

0

0

0

0

0

July Aug.

Mean

0

0

.05

.248

0

.06

.050 

.070

.006

O

0

0

0

.020

Sept.

Runoff tn 

acre-feet

0

0

3.4

180

0

s'.i 3.2

4^2

.4

O

0

0

0

14

a No gage-height record; discharge interpolated.

e Daily discharge less than O.I second-foot.

f Computed on basis of partly estimated gage-height record.
34 SAN DIEGUITO RIVER BASIN

Santa Maria Creek near Ramona, Cilif.

Location - Water-stage recorder and concrete control, lat. 33°03'15", long. 116°56'55", 

IrTSEf sec. 11, T 13 S., R. 1 W., 4 miles above mouth and 5 miles west of Ramona. 

Altitude of gage, about 1,280 feet (from topographic map).

Drainage area.- 58 square miles.

Records available.- November 1912 to September 1920, October 1946 to September 1948.

Extremes.- Maximum discharge during year, 0.3 second-foot Mar. 24 (gage height, 1.05 

reet); no flow during several months.

1912-20, 1946-48: Maximum discharge, 7,140 second-feet Jan. 27, 1916 (gage height, 

15.9 feet, datum then in use), by slope-area method; practically no flow during severa." 

months of each year.

Remarks.- Records good. City of Ramona pumps water from stream above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7 

8 

9 

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28 

29

30

31

Oct. Nov. Dec. Jan.

0

0

0

0

0

0

0 

0 

0

0

0

0 

0

0

o

I e.02

V e.03

Feb.

.

> eO.05

I

>

> e.09

i

I e.08

J[ "

L e.OS

1

\ 6.05

_

-

Month

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

Calendar year 1947 ......................

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

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

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

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

Water year 1947-48 ......................

Mar.

.

I

> eO.03

I

'

.

1 e.02 

I e.07

I e.04

' .1

.1

|

L e.OS

|

)

) 6.03

' .1

.1

 e.OS

Apr.

L

I

> eO.05

I

'

>

> e.02

\ e.Ol

, e.02

-

Secondfoot-days

0

0

0

5.98

0

4.70

May

. eO.Ol

0

0

0

0

0

0

0 

0

o

0

0

0 

0 

0

0

0

Maximum

0

0

.6

0

.1

June

Minimum

0

0

0

0

July Aug.

Mean

0

.016

0

.013

Sept.

Runoff in 

acre-feet

0

12

0

9.3

e Daily discharge less than 0.1 second-foot.
SAN LUIS REY RIVER BASIN 35

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

Location.- Staff gage, lat. 33°14'15", long. 116°45'50", in NW£ sec. 10, T. 11 S., R. 2 E. 

J at Henshaw Dam, 5 miles north of Mesa Grande. Altitude of spillway, 2,787 feet. Gage 

height of spillway, 107.00 feet.

Drainage area.- 209 square miles at Henshaw Dam.

Records available.- January 1923 to September 1948. October 1911 to January 1923 at station 1 mile Beiow dam site.

Average discharge.- 11 years (1911-22), 60.4 second-feet, below dam site; 26 years (1922-

 4B1 ), 3b'.i> second-feet, streamflow into Lake Henshaw.

Remarks.- Records of runoff represent inflow to Lake Henshaw, exclusive of 90 percent of

 rainfall on lake surface, computed on basis of records of storage, release (draft), 

spill, leakage, evaporation, and rainfall. Capacity and area ratings for this reservoir are based on surveys made in 1923. Capacity of reservoir at spillway level was 

203,581 acre-feet at that time. Dead storage, 100 acre-feet below lowest outlet at 

gage height 10.5 feet included in these records. Gage read daily. Since storage of 

water was begun, runoff as computed has been exclusive of 90 percent of computed rainfall on water surface of reservoir. During current year rainfall on reservoir surface 

amounted to 3,140 acre-feet. No diversion above Lake Henshaw. No flow over spillway 

since dam was completed. Water is released down San Luis Rey River for diversion downstream for irrigation, power, and domestic use.

Cooperation.- Basic records furnished by Vista Irrigation District.

Monthly runoff, water year October 1947 to September 1948

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

Calendar year 1947. ....

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

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

Water year 1947-48. ....

At end o

Gage height 

(feet)

80.06

-

68.54

-

r month

Contents 

(acre-feet)

82,605

-

52,815

-

Change

In

contents 

(acrefeet)

+595

-32,938

-4,717

-32,246

Draft

feet)

0

0

23,352

3,296

24,862

Net

evapo-

(acrefeet)

-159

+17,434

+1,684

+13,231

Spill 

plus

(acrefeet)

0

0

0

0

0

0

0

Runoff

feet)

142

436

7,848

189

1,086

787

484

260

469

263

5,847

Note.- Net evaporation, as us»d in computing this record, Is total evaporation less 90 percent 

of rainfall on water surface of reservoir.
36 SAN LUIS KEY RIVER BASIN

San Luis Key River below Pala diversion dam, near Pala, Calif.

Location.- W^ter-stage recorder, lat. 33°21'30", long. 117°02'50". in Sw£ sec. 25, T. 9 

B., K. 2 W., below Pala diversion dam, 1.8 miles east of Pala. Altitude of gage, about 

500 feet (from topographic map).

Drainage area.- 326 square miles.

Records available.- May 1944 to December 1948 (irrigation seasons only).

Remarks.- Records good. Flow regulated by Lake Henshaw. Diversions above station, mainly 

by Escondido Mutual Water Co. U. S. Indian Irrigation Service diverted about 800 acrefeet during period May 1 to Nov. 30 at Pala diversion dam. In accompanying table are 

shown discharge measurements of San Luis Key River above Pala diversion dam mads during 

1948.

asurements of San Luis Hey Hlver above Pala diversion dam, 

near Pala, Calif , 1848

Date

Feb. 4

Mar. 30

Apr. 5

29

Discharge

sec. -ft.

1.6

5.1

7.4

3.5

Date

May 28

June 14

July 12

Aug. 2

Discharge 

sec. -ft.

2.6

2.6

1.5

1.1

Date

Aug. 17

Sept. 7

20

Oct. 4

Discharge 

sec. -ft.

1.4

1.3

1.2

1.3

Date

Oct. 26

Nov. 17

Dec. 3

DischarRe 

sec. -ft.

2.0

2.1

2.4

April to Decembe

Day

1 

2 

3 

4

5 

6

7

8 

9

10

11

12 

13

14

15

16 

17 

18 

19

20

21

22

23

24

25 

26

27

28 

29 

30 

31

Feb.

tl.6

Mar.

:

-

:

-

_

-

_

-

:

-

-

-

-_

_

5.2 

5.2

Apr.

5.2 

5.4 

5.7 

12

9.5

8.5

4.3

1.0

.6

.6

.6

.5

.3

.2

.1

^ e.06

' e.08

Month

May 1 June

> eO.05

> e.08

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

The period ........... ....................

> eO.05

> e.04

1

e.04

r

1L e.05

0 

1 e.02

July

I eO.03

0 

0

| e.02

0

0 

.02

0

f "

0

0

0 

0 

0 

0

0

0

0

0 .

0

0 

0

0

L e.02

0

Aug.

I e.02 

0

0

> e.04

/

0

0 

0

0

0

0 

0 

0 

0

0

0

0

0

0

0 

0

0

0 

0 

0 

0

£££. M~i

1 23 2

-

-

Sept.

Minimum

-

-

Oct.

O 

0 

0 

0

0 

0

0

0

0

0

0

0 

0

0

0

0 

0

.1

0

0

0

0

. e.Ol

0 

0 

0 

0

Nov.

\ eO.Ol

. e.02

> e.05

.1

.1

^ e.05

.1

.2 

.1 

.1

Mean

-

Dec.

1 eO.05

"

-

-

-

_

-

_

-

1

-

-

-

-

-

-

1

Runoff in 

acre-feet

2 3

120

t Result of discharge measurement.

e Daily discharge less than 0.1 second-foot.
SAN LUIS KEY RIVER BASIN 37 

San Luis Key River at Monserate Narrows, near Pala, Calif.

Location.- Water-stage recorder, lat. 33°20'15", long. 117°08'10", in NE-q; sec. 6, T. 10 3. 

H. aw., 4 miles southwest of Pala and 6 miles northeast of Bonsall. Altitude of gage, 

about 270 feet (from topographic map).

Drainage area.- 383 square miles.

Records available.- December 1935 to November 1941 (fragmentary), October 1946 to Septemoer ia4b.

Extremes.- Maximum discharge during year, 12 second-feet Dec. 5 (gage height, 1.41 feet); 

no flow Aug. 21 to S,ept. 30.

1935-41, 1946-48: Maximum gage height, 8.7 feet Feb. 7, 1937, datum then In use 

(discharge not determined); no flow Aug. 21 to Sept. 30, 1948.

Ffema'rks.- Records good.

Discharge, In second-feet, water year October 1547 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.6 

.8 

.9 

1.0

1.0 

1.0 

1.0

.9

1.2 

1.5 

1.4 

1.4 

1.2

1.8 

1.8 

1.6 

1.5 

1.6

1.7

1.6 

1.8 

1.6

1.8 

1.8 

2.0 

2.5 

2.2 

2.1

Nov.

2.1 

2.2 

3.0 

3.0

2.4

2.2 

2.1 

2.0

2.4

2.5 

2.5 

2.4 

2.5 

2.7

2.8 

2.8 

2.8 

3.1 

3.3

3.5

3.9 

3.7 

3.7

3.5 3.5' 

3.5 

3.7 

3.9

Dec.

4.4 

4.4 

4.3 

4.7 

5.4

4.7 

4.3 

4.1

4.1

3.9 

3.7 

3.7 

3.9 

4.1

4.1 

4.1 

4.3 

4.4 

4.3

4.4

4.4 

4.4 

4.3

4.3 

4.3 

4.4 

4.4 

4.4 

4.4

Jan.

4.4 

4.4 

4.3 

4.3 

4.3

4.3 

4.3 

4.3

4.4

4.4 

4.4 

4.4 

4.3 

4.3

4.3 

4.3 

4.3 

4.3 

4.3

4.3

4.3 

4.3 

4.3

4.3 

4.3 

4.3 

4.3 

4.3 

4.3

Feb.

4.4 

4.4 

4.4 

4.4 

5.3

5.6 

5.4 

4.9

4.7

4.4 

4.4 

4.4 

4.7 

4.9

4.9 

4.9 

5.2 

5.4 

5.4

5.9

6.4 

5.9 

5.6

5.6

5.6 

5.6

5.6

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ..................................

lendar year 194.7 

ary

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

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

ter year 1947-48 ......................

Mar.

5.4 

5.4 

5.4 

5.4 

5.2

5.2 

5.4 

5.9

6.1

5.9 

5.9 

6.1 

6.6 

6.9

6.6 6.4' 

6.4 

6.4 

6.4

6.1

5.9 

6.1 

6.9

6.6 

6.6 

6.4 

6.4 

6.1 

6.1

Apr.

6.1 

6.4 

7.1 

8.3 

9.9

8.9 

8.0 

5.6

3.9

3.7 

3.7 

3.5 

3.5 

3.3

3.3 

 3.3 

3.3 

3.3 

3.3

3.3

3.3 

3.3 

3.5

3.5 

3.5 

3.7 

3.7 

3.7

Secondfoot-days

44.4 

88.0 

133.4

1,988.8

134.0 

149.1 

188.2 

137.5 

76.3 

48.7 

23.6 

8.7 

0

1,031.9

May

3.5 

3.3 

3.3 

3.1 

3.0

3.0 

3.0 

3.1

2.8

2.8 

2.8 

2.5 

2.4 

2.5

2.5 

2.5 

2.5 

2.8 

2.8

2.5

2.2 

2.0 

1.6

1.6 

1.7 

1.5 

1.2 

1.2 

1.4

Maximum

2.5 

4.1 

5.4

26

4.4 

6.4 

6.9 

9.9 

3.5 

2.2 

1.2 

1.2 

0

9.9

June

1.8 

2.2 

1.8 

2.0 

1.7

1.6 

1.4

1.5

1.6

1.7 

1.7 

1.8 

1.8 

1.8

1.8 

1.7 

1.5 

1.4 

1.6

1.6

1.5 

1.4 

1.4

1.2 

1.4 

1.6 

1.6 

1.4

Minimum

0.4 

2.0 

3.7

.1

4.3 

4.4 

5.2 

3.3 

1.2 

1.2 

.5 

0 

0

O

July

1.2 

1.0 

1.0 

1.0 

1.2

1.2 

1.0 

1.0 

.7 

.6

.6 

.6 

.7 

.6 

.6

.6 

.6 

.6 

.6 

.7

.7 

.7 

.6 

.7 

.8

.8 

.8 

.7 

.6 

.6 

.5

Aug.

0.5

.5 

.6 

.5 

.6

1.2 

.6 

.5 

.5 

.4

.4 

.4 

.4 

.3 

.3

.3 

.3 

.2 

.1 

.1

0 

0 

0 

0 

O

0 

O 

0 

0 

0 

0

Mean

1.43 

2.93 

4.30

5.45

4.32 

5.14 

6.07 

4.58 

2.46 

1.62 

.76 

.28 

0

2.82

Sept.

Runoff in 

acre feet

88 

175 

265

3,940

266 

296 

373 

273 

151 

97 

47 

17 

0

2,050

889419 O - 50 - 4
38 SAH LUIS KEY RIVER BASIH

San Luis Key River near Bonsali, Calif.

Location.- Water-stage recorder, lat. 33°15'05", long. 117°14'5b", in NE£ sec. 1, T. 11 S.,

 K. 4 W., 0.8 mile dawnstream from bridge on Pall Brook-Escondido road and 3 miles southwest of Bonsali. Datum of gage is 108.10.feet atove mean sea level, datum of 1929.

Drainage area.- 514 square miles.

Records available.- October 1929 to September 1948. July 1916 to September 1918 (gage

 heights ana discharge measurements only) at site 0.8 mile upstream.

Average discharge.- 19 years (1929-48), 36.0 second-feet.

Extremes.- Maximum discharge during year, 225 second-feet Dec. 5 (gage height, 4.82 feet); 

no now during several months.

1929-48: Maximum discharge, 18,100 second-feet Mar. 3, 1938 (gage height, 12.60 

feet, datum then in use), from rating curve extended above 2,400 second-feet; no flow 

part of each year.

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

Regulation at Lake Henshaw; several diversions above station.

Revisions [water year).- W 881: 1938.

Discharge, in second-feet, water year October 1947 to September 194

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

0

0

0

.7

18

.5

.1

.2

.2

.2

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

.2

.3

.5

.4

Jan.

0.4

.4

.5

.5

.6

.5

.4

.5

.5 ' .5

.5

.5

.3

.3

.3

.3

.3

.3

.3

.2

.3

.3

.3

.4

.4

.4

.5

.5

.5

.5

.6

Feb.

0.6

.6

.6

.7

16

9.5

1.0

.8

.8

 .8

.8

.8

.8

.8

.1

.1

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

-

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Peak discharge (base, 100 sec. -ft.).- Dec.

Har.

0.6

.8

.6

.6

.5

.5

.5

.6

.6

.6

.5

.6

.6

.8

.9

.9

.8

.8

.8

.8

.8

.8

.8

1.3

3.5

1.3

.9

.8

.8

.8

.6

Apr.

0.6

.8

1.1

1.2

1.2

1.2

1.0

.8

.8

.7

.8

.6

.5

.5

.3

.3

.2

.2

.2

.2

.2

.1

.1

0

0

0

0

0

0

0

-

Secondfoot-days

0

0

21.9

1 , 226 . 9

12.8

43.8

25.6

13.6

0

0

0

0

0

117.7

May

Maximum

0

0

la

35

.6

16

3.5

1.2

0

0

0

0

0

18

June

Minimum

0

0

0

0

.2

.6

.5

0

0

0

0

0

0

0

July Aug.

Mean

0

0

.71

3 . 36

.41

1.51

.83

.45

0

0

0

0

0

.32

Sept.

Runoff in 

acre-feet

0

0

43

2 * 430

25

87

51

27

0

0

0

0

0

233

5 (1:15 a.m.) 225 sec. -ft.; Feb. 5 (9:30 p.m.) 125 sec.-

Note.- No gage-height record Jan. 25 to Feb. 4, Feb. 27 to Mar. 3, Mar. 22-30; discharge computed 

on basis of interpolation, recorded range in stage, and records for San Luls Key River near Pala 

at Monserate Narrows, and Santa Ysabel Creek near Mesa Grande.
SAN LUIS KEY RIVER RASIN 39 

San Luls Key River at Ooeanside, Calif.

Location.- Water-stage recorder, lat. 33°1K'40", long. 117 0 22'40", in NWj sec. 23, T. 11 S.

 FTmr., 0.5 mile upstream from State nighway bridge, 0.7 mile above mouth, and 1 mile

north of Ooeanside. Altitude of gage, about 30 feet. 

Drainage area.- 557 square miles. 

Kecoras available.- April 191? to September 1914, January 1916, October 1929 to January

1942, October 1946 to September 1948.

Average discharge.- 16 years (1912-14, 1929-41, 1946-48), 33.0 second-feet. 

Extremes.- No flow during year.

 1512-14, 1916, 1929-42, 1946-48: Maximum discharge, 95,600 second-feet Jan. 12,

191l"; no flow for several months of each year. 

Remarks.- No flow during year. Storage at Lake Henshaw; several diversions above station.

Location.- Water-stage recorder, lat. 33°29'40", long. 116 0 59'00", in Pauba Grant, at 

upper end of Nigger Canyon, 0.2 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 1948.

Average discharge.- 25 years, 14.6 second-feet.

Extremes.- Maximum discharge during year, 41 second-feet Mar. 26 (gage height, 1.48 feet); 

minimum daily,1.2 st"'und-l't;ft O't. 1, ;>.

1923-48: Maximum discharge, 17,100 second-feet Feb. 16, 1927 (gage height, 19.5 

feety, by slope-area method; minimum, 0.6 second-foot Aug. 17, 1934.

Remarks.- Records good. No diversion above station. Flow regulated for short periods beginning this year by construction at site of Nigger Canyon Dam above station.

Cooperation.- Gag

rita Kanch (U. 

Disc

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.2 

1.4

1.5 

1.4

1.2

1.4 

1.5 

1.5 

1.6

1.6 

1.6 

2.0 

1.8 

1.8

2.0 

1.8 

1.8 

1.8 

1.8

1.8 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.8 

2.0 

1.8 

1.6

Nov.

1.8 

2.0 

2.0 

2.0 

1.8

2.0 

2.0 

2.0 

2.1

2.3 

2.3 

2.3 

2.3 

2.3

2.3 

2.3 

2.3 

2.5 

2.5

2.5 

2.6 

2.6 

2.6 

2.6

2.5 

2.5 

2.5 

2.5 

2.5

3-height record and 154 discharge measurements furnished by Pa 

S. Navy) and Pauba Ranch.

harge, in second-feet, water year October 1947 to September 1943

Dec.

2.6 

2.8 

2.6 

3.5 

9.4

8.0 

5.8 

5.8 

5.2

4.9 

4.7 

4.4 

4.7 

4.4

4.4

4.7 

4.4 

4.7 

4.7

3.9 

3.7 

3.5 

3.2 

3.9

4.2 

4.4 

4.4 

4.7 

4.7 

4.7

Jan.

4.9 

4.9 

4.9 

4.7 

4.4

4.4 

4.2 

3.9 

3.7

3.7 

3.5 

3.5 

3.7 

3.7

3.7 

3.7 

3.7 

3.7 

3.9

3.9 

3.9 

4.2 

3.9 

3.7

3.9 

3.7 

3.9 

4.2 

4.7 

4.4

Feb.

4.2 

4.2 

4.2 

4.2

16

36 

15 

9.6 

7.7

7.0 

6.7 

6.1 

5.8 

5.5

5.2 

5.2 

5.2 

5.5 

4.7

4.4 

4.4 

4.7 

4.9

4.7

4.7 

4.7 

4.9

5.5

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

lendar year 1947 ......................

ary . .

h. .....................................

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

ter year 1947-48 ...............

Mar.

4.9 

4.9 

4.7 

4.2 

4.2

3.9 

3.9 

3.9 

4.2

3.7 

3.9 

3.9 

4.4 

5.2

5.8 

5.2 

5.2 

4.7 

4.4

4.4 

4.1 

3.9 

10 

12

9.4 

6.1 

4.9 

4.7 

4.7 

4.7

Apr.

3.9 

4.2 

3.9

5.2 

6.1

5.5 

3.9 

3.9 

3.9

3.9 

3.7 

3.7 

3.5 

3.7

3.7 

3.7 

3.9 

3.7 

3.9

3.7 

3.4 

3.5 

3.2 

3.2

3.5 

3.2 

3.0 

3.7 

3.5

May

3.5 

3.2 

3.5 

3.0 

2.8

3.0 

3.2 

3.2 

2.8

3.2 

2.8 

2.8 

2.6 

2.5

2.5 

2.6 

2.5 

2.8 

3.0

2.8 

2.8 

3.0 

3.2 

3.2

3.2 

3.2 

3.5 

3.0 

2.6 

2.8

June

3.5 

4.2 

3.0 

3.0 

3.2

3.2 

3.0 

2.8 

2.8

2.5 

2.3 

2.3 

2.5 

2.5

2.6 

2.4 

2.5 

2.5 

2.5

2.5 

2.6 

2.5 

2.4 

2.4

2.4 

2.3 

2.3 

2.3 

2.2

foo^ays Maxinun Mininun

50.9 2.0 1.2 

68.8 2.6 1.8 

141.9 9.4 2.6

1,253.3 20 1.1

124.9 4.9 3.5 

207.9 36 4.2 

157.8 12 3.7 

115.5 6.1 3.0 

91.8 3.5 2.5 

79.8 4.2 2.2 

60.3 2.2 1.6 

49.0 1.7 1.4 

45.4 1.8 1.3

1,194.0 36 1.2

July

2.2 

2.2 

2.2 

2.1 

2.1

2.1 

2.0 

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

1.9 

2.0 

2.0 

2.0

2.0 

1.9 

1.9 

1.9 

1.8

1.8 

1.8 

1.6 

1.6 

1.6 

1.6

ota MargaAug.

1 

1 

1

1 

1

1 

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

1.64 

2.29 

4.58

3.43

4.03 

7.17 

5.09 

3.85 

2.96 

2.66 

1.95 

1.58 

1.51

3.26

.7 

.5 

.4 

.7 

.7

.6 

.6 

.7 

.7

.6 

.6 

.6 

.7 

.6

.5 

.4 

.4 

.4

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.5 

.4

Sept.

1,6 

1.5 

1.4 

1.4 

1.5

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.3 

1.4

1.4 

1.4 

1.4 

1.4 

1.6

1.6 

1.6 

1.6 

1.8 

1.8

1.8 

1.8 

1.7 

1.6 

1.7

Runoff in 

acre-feet

101 

136 

281

2,490

248 

412 

313 

229 

182 

158 

120 

97 

90

2,370

Peak discharge (base, 60 sec.-ft.).- No peak above base.
40

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, 0.1 mile downstream from Murrieta Creek and 

1.5 miles south of Temecula, Riverside County. Altitude of gage, about 950 feet.

Drainage area.- 592 square miles.

Records available.- January 1923 to September 1948.

Average discharge.- 25 years, 28.2 second-feet.

Extremes.- Maximum discharge during year, 79 second-feet Feb. 5 (gage height, 1.91 feet); 

minimum daily, 3.4 second-feet Sept. 10, 11.

1923-48; Maximum discharge, 25,000 second-feet Feb. 16, 1927 (gage height, 14.6 

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

Remarks.- Records good. Pumping diversions affect flow during Irrigation season.

Cooperation.- Gage-height record and 292 discharge measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1947'to September 1S4B

Day

1

2

3

4

5

6

7

8

9

10

611

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.6

6.6

6.6

6.2

6.2

7.0

7.0

6.6

7.5

6.6

6.6

6.4

7.0

7.0

7.0

7.5

8.0

8.0

8.0

7.5

7.0

7.0

7.0

7.5

8.0

8.5

7.0

6.6

7.5

7.5

7.5

Nov.

8.0

8.5

8.5

8.5

8.0

8.5

8.5

8.5

8.5

8.0

8.5

8.5

8.5

9.0

9.0

9.0

8.5

8.5

8.5

9.0

9.0

9.6

8.5

8.5

8.5

9.0

9.0

9.0

9.0

9.0

Dec.

10

9.0

9.6

14

28

23

15

12

11

11

10

11

11

11

10

9.7

10

10

10

10

9.2

9.2

8.8

9.7

9.7

9.2

9.7

9.7

10

9.7

11

Jan.

10

10

11

11

11

10

9.7

10

10

10

9.7

9.2

8.8

8.8

9.2

8.4

8.8

8.8

9.2

10

11

11

9.7

9.2

9.7

9.7

9.2

8.8

8.8

8.8

9.7

Feb.

9.7

11

11

11

34

39

20

14

14

12

14

14

13

12

12

11

11

11

11

12

12

14

12

11

11

10

10

9.7

9.7

_

-

Month

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

Calendar year 1947 ......................

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

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

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

Water year 1947-48 ......................

Mar.

9.

9.

9.

9.

9.

9.

9.

9.

9.

10

9.

9.

9.

11

11

11

9.7

10

9.7

9.7

9.2

9.2

9.7

10

13

12

10

9.7

10

10

9.7

Apr.

9.7

10

11

11

11

10

9.2

8.8

8.8

9.2

9.2

8.8

9.2

9;2

8.8

8.8

8.8

9.2

9.2

9.7

9.2

9.2

9.2

8.8

9.2

10

8.4

8.0

9.7

8.8

-

Secondfoot-days

221.0

259.6

351.2

'3,^96.8

299.2

309.0

130.2

2,982.4

May

8.8

9.2

8.0

8.0

7.6

8.0

8.0

8.0

8.0

8.4

8.4

8.0

7.6

7.2

6.8

6.4

6.4

6.4

6.0

6.4

7.6

8.4

8.0

7.6

7.6

8.0

7.6

7.6

7.2

7.2

7.2

Maximum

8.5

9.6

28

28

11

39

13

11

5.3

39

June

8.0

8.0

7.6

7.6

6.8

6.8

7.2

8.0

6.8

6.8

6.8

6.8

6.0

5.7

5.7

6.0

6.0

5.7

5.7

6.0

6.0

6.4

6.8

6.8

6.8

6.0

6.4

6.0

5.3

6.8

-

Minimum

6.2

8.0

8.8

3.5

8.4

9.7

9.2

8.0

6.0

4.3

4.0

3.4

3.4

July

5.

5.

6.

6.

6.

5.

5.

4.

4.

5.

4.

5.

5 .

4.

5.

5.3

5.0

5.3

5.0

6.4

5.

5.

5.

5.

5.

5.

4.

5.

4.

4.

5.

Aug.

.0

'. .3

.3

.3

.0

.3

.3

'. .5

.0

.0

.3

.3

.3

'. .3

5.3

5.3

4.7

4.3

4.7

4,7

4.3

5.0

5.3

4.3

4.0

4.7

4.3

4.3

4.7

4.3

4.0

Mean

7.13

8.65

11.3

9.31

9.65

13.7

9.97

9.34

7.60

5.32

4.46

4.34

8.15

Sept.

4.3

4.7

4.3

4.0

4.3

4.3

4.0

4.0

3.7

3.4

3.4

4.3

4.3

3.7

3.7

4.0

4.0

4.7

4.7

3.7

4.0

4.7

4.7

5.3

5.0

5.0

5.0

4.7

5.0

5.3

-

Runoff in 

acre feet

438

515

697

6,740

593

786

613

556

467

391

327

274

258

5,920

Peak discharge (base, 70 sec-ft.).- Feb. 5 (5 p.m.) 79 sec.-ft.
SANTA MARGARITA RIVER BASIN 41 

Santa Margarita River near Fall Brook, Calif.

Location.- Water-stage recorder, lat. 33°24'35", long. 117°14"50", in NE£ sec. 12, T. 93., 

 H. 4 W. , 2 miles north of Pall Brook. Altitude of gage, about 290 feet. Auxiliary 

water-stage recorder on opposite bank about 2,000 feet downstream.

Drainage area.- 645 square miles.

Records available.- November 1924 to September 1948.

Average discharge.- 23 years (1925-48), 36.7 second-feet.

Extremes.- Maximum discharge during year, 320 second-feet Dec. 5 (gage height, 1.61 feet); 

minimum daily, 2.2 second-feet Sept. 11, 12.

1924-48: Maximum discharge, 33,100 second-feet Feb. 16, 1927 (gage height, 15.6 

feet) by slope-area method; minimum, 0.1 second-foot Aug. 30, 1925, Sept. 4, 1926, Sept. 

6, 1928, and at times during July and August 1929.

Remarks.- Records good. Several diversions for irrigation above station.

Cooperation.- Gage-height record and 293 discharge measurements furnished by Santa 

Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

.10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.5

6.5

6.3

6.5

6.3

6.7

6.7

6.7

6.7

7.2

7.2

7.5

7.8

8.0

7.8

8.0

8.0

8.0

7.8

7.8

7.8

7.2

7.0

7.2

7.0

7.2

7.2

7.2

7.5

7.2

7.5

Nov.

7.5

8.0

7.8

7.5

7.8

7.8

7.8

8.0

8.5

8.8

8.8

9.1

8.8

8.5

8.8

9.1

8.8

9.1

9.4

9.7

9.1

9.4

9.7

9.7

9.4

9.4

9.4

9.4

9.4

9.4

-

Dec.

11

11

10

17

77

29 ris

f!6

14

13

12

12

11

11

11

11

11

11

11

11

11

11

11

11

12

11

11

11

12

12

12

Jan.

12

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

13

13

12

12

12

12

12

12

12

12

Feb.

12

12

12

12

54

57

27

f21

fl7

17

17

17

14

14

14

14

14

14

14

14

14

14

14

14

13

13

13

13

13

_

-

Month

October. ......

Nove 

Dece

mber. ..................................

mber. ..................................

Calendar vear 10/17

Janu 

Febr

ary

uarv ...................................

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

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

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

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

July 

Auguat. ....... . . ....

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

Water year 1947-48 ......................

Mar.

13

12

12

13

12

12

12

12

13

12

12

11

13

18

16

1?

14

13

13

14

13

12

12

21

19

15

13

12

12

12

12

Apr.

12

12

16

17

14

13

12

12

11

12

12

12

11

12

11

10

10

10

11

11

11

11

11

10

9.4

9.4

9.4

9.7

13

11

-

Secondfoot-days

224.0

263.9 

453

3,530.2

364 

508

413

345.9 

246.0

189 . 8

131.1

110.4 

96.3

3,345.4

May

10

10

9.4

8.8

8.5

8.5

8.8

9.1

9.1

8.5

8.5

8.2

8.0

.8

.2

_ 7

5.5

t 7

.5

.8

.8

.2

.0

.0

.0

.5

.5

.5

.2

.2

.5

Maximum

8.0

9.7 

77

77

13 

57

21

17

10 

10

5.2

3.9

4 . 2

77

June

8.2

10

9.4

8.5

7.8

7.2

6.7

6.5

6.5

6.3

6.1

6.3

S.I

5.9

5.8

5.6

5.4

5.2

5.2

5.2

5.4

5.8

5.9

5.6

5.6

5.6

5.6

5.6

5.6

5.2

-

Minimum

6.3 

7.5 

10

2 . 8

11

12

11

9.4

6.5 

5. 2

2.'2

2.2

July

5.2

5.2

5.2

.2

.9

.7

.5

.8

.6

.6

.4

.4

.6

:s

.0

.2

.1

.1

.4

.5

.2

.4

.5

.5

.2

.4

.2

.1

.0

.8

.4

Aug.

3.3

3.2

3.0

3.4

3.7

3.7

3.7

3.4

3.6

3.6

3.4

3.7

3.9

3.8

3.7

3.7

3.7

3.6

3.4

3.5

3.8

3.7

3.8

3.8

3.7

3.7

3.8

3.8

3.4

3.1

2.8

Mean

7.23 

8.80 

14.6

9.67

11.7

17.5

13.3

11.5

7.94

6.33 

4.23

3 . 56

3.21

9.14

Sept.

2.7

2.7

2.9

2.7

2.8

2.7

3.1

3.0

2.8

2.6

2.2

2.2

2.5

2.6

2.6

2.6

2.8

3.2

3.3

3.8

3.7

3.8

4.0

4.2

4.2

4.2

4.1

4.0

4.1

4.2

Runoff in 

acre feet

444 

523 

899

7,000

722

1,010

819

686

488

376 

260

219

191

6,640

Peak discharge

f Computed on basis of partly estimated gage-height record.
42 SANTA MARGARITA RIVER BASIN

Santa Margarita River at Ysidora, Calif.

Location.- Water-stage recorder, lat. 33°14'40", long. 117°22'50", in Santa Margarita Las

 j«'iores Grant, 1 mile downstream from Ysidora, San Diego County, and about 2 miles upstream from mouth. Altitude of gage, about 15 feet.

Drainage area.- 740 square miles.

Records available.- February 1923 to September 1929, October 1930 to September 1948.

Average discharge.- 20 years (1927-29, 1930-48), 44.6 second-feet.

Extremes.- Maximum discharge during year, 37 second-feet Feb. 6 (gage height, 6.31 feet); 

no flow during several months.

1923-29, 1930-48: Maximum discharge 33,600 second-feet Feb. 16, 1927, by slope-area 

method; no flow during part of most years.

Remarks.- Records good. Diversions above station for irrigation on Santa Margarita Ranch

 and Pauba Ranch. (See p. for records of O'Neill ditch near Ysidora.)

Cooperation.- Gage-height record and 49 discharge measurements furnished by Santa Margarita 

Ranch (u. S. Navy) and Pauba Ranch.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

0

0

0

0

0

13

26

12

7.1

5.3

3.5

2.6

2.2

2.4

6.3

5.6

4.1

3.1

2.4

1.7

1.0

1.3

1.0

.2

.1

0

0

.2

1.0

-

Month

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

Calendar year 1947 ......................

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

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

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

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

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

Water year 1947-48 ......................

Mar.

1.0

.6

.3

0

0

0

0

.5

.4

.9

.5

3.8

5.6

4.3

5.9

5.6

4.6

4.6

3.8

3.3

2.2

3.1

7.6

5.6

5.6

4.3

3.5

Apr.

2.7

2.6

8.0

13

9.8

9.1

8.0

8.6

9.1

6.6

5.6

4.3

2.9

1.7

.8

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Secondfoot-days

0

1,720.4

0

283.4

May

Maximum

0

48

0

26

June

Minimum

0

0

0

0

July Aug.

Mean

0

4.71

0

.77

Sept.

Runoff in 

acre-feet

0

3,420

203

0

562

Peak discharge ibase, 50 see.-ft.) . - No peak above base
SANTA MARGARITA RIVER BASIN 43 

Murrieta Creek at Temecula, Calif.

Location.- Water-stage recorder, lat. 33°29iOO", long. 117°08'50", in Temecula Grant, 0.6 

 mile upstream from Temecula Creek and 0.5 mile south of Temecula, Riverside County. 

Altitude of gage, about 1,050 feet.

Drainage area.- 220 square miles.

Records available.- October 1930 to September 1948.

Average discharge.- 18 years, 13.0 second-feet.

Extremes.- Maximum discharge during year, 57 second-feet Feb. 5 (gage height, 1.61 feet); 

minimum daily, 0.3 second-foot on many days.

1930-48: Maximum discharge, 17,500 second-feet Jan. 23, 1943 (gage height, 13.82 

feet); minimum, 0.2 second-foot at times during 1931, 1933, 1934, 1935.

Remarks.- Records good. No appreciable diversion above station.

Cooparatlon.- Gage-height record and 293 discharge measurements furnished by Santa 

wargarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.5 

.5 

.5 

.5 

.5

,6 

.6 

.6 

.6 

.6

.6 

.6

,7

.6

.6 

.7 

.7 

.7 

.7

.8 

.7 

.6 

.7 

.7

.7 

.7 

.8 

.8 

.8 

.8

Nov.

0.8

.8 

.8

.8 

.8 

.8

.8

.8 

.8 

.8 

.8 

.9

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 .8' 

.8

Dec.

1.1 

1.1 

.8 

1.5

13

7.8 

2.1 

1.6 

1.3 

1.2

1.2 

1.1 

1.1

1.1

1.1 

1.0 

1.0 

1.0 

1.0

1.1 1.1 

1.1 

1.1 1.1

1.0 

1.0

1.1 1.1

1.2

1.2

Jan.

1.2 

1.2

1.2 

1.2

1.2

1.2 

1.2 

1.2 

1.2 

1.1

1.1 

1.0 

1.0

.9

1.0 

1.0 

.9 

1.1 

1.0

1.9 

3.9 

1.5 

1.3 

1.3

1.2 

1.1 

1.1 

1.1 

1.2 

1.1

Feb.

1.2 

1.2 

1.2 

1.1

14

18 

3.7 

2.1 

1.7 

1.6

1.5 

1.6 

1.4

1.3

1.3 

1.3 

1.2 

1.2 

1.7

1.3 

1.3 

1.3 

1.3 

1.3

1.2 

1.2 

1.2 

1.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

ffa

mber. ..................................

mber. ..................................

lendar year 1947 

ary

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

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

ter year 1947-48 ......................

Peak discharge (base, 55 sec. -ft.).- Feb.

Mar.

1.2 

1.3 

1.3 

1.3

1.1

1.1 

1-1 

1.1 

1.1 

1.1

1.0 

1.0 

1.0

1.9

1.5 

1.2 

1.3 

1.1 

1.3

1.3 

1.1 

1.0 

1.2 

3.4

2.2 ' 

1.3 

1.3

1.1 

1.1

,1.1

Apr.

1.0 

1.0 

1.2 

1.6

1.1 

1.0 

1.0 

1.0 

1.0

.9

.8 

.9

.8

.7 

.7 

'.9 .8 

.8

.d 

.7 

.8 

.8 

f .7

f .7 

.7 

1.0 

1.2 

1.2

Secondfoot-days

20.2 

23.4 

54.3

421.2

38.6 

70.9 

40.7 

28.0 

20.0 

15.5 

11.8 

12.2 

10.2

345.8

Hay

fl.l 

a. 9 

f .8 

a. 8

1.0 

.7 

.7 

.7 

.7

.6 

.6 .6'

.5

.5 

.5 

.7 

f .7 

f.6

f.6 

.6 

.5 

.5 

.5

.7 

.6 

.5 

.5 

.5 

.6

Maximum

0.8 

.9 

13

13

3.9 

18 

3.4 

1.6 

1.1 

.8 

.5 

.4 

.4

18

June

0.6 

.8 

.8 

.7

.6 

.6 

.5 

.5 

.5

.5 

.5 

.4

.5 

.5

.5 

.5 

.4 

.4 

.4

.5

.5 

.5 

.5 

.4

.5 

.5 

.4 

.4 

.4

Minimum

0.5 

.7

.3

.9 

1.1 

1.0 

.7 

.5 

.4 

.3 

.3 

.3

.3

July

0.5 

.5 

.4 

.4

.4 

.4 

.4 

.3 

.3

.3 

.4 

.4

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4

.4

.4 

.3 

.3 

.3 

.3 

.3

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

.4 

.4 

.3 

.4 

.4 

.3

Mean

0.65 

.78

1.15

1.25 

2.44 

1.31 

.93 

.65 

.52 

.38 

.39 

.34

.94

Sept.

0.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

.3 

.3

.3 

.3 

.3 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

Runoff in 

acre-feet

40 

46 

_10_§_

836

77 

141 

81 

56 

40 

31 

23 

24 

20

687

5 (8 p.m.) 57 sec. -ft.

a No gage-height record; discharge interpolated.

f Computed on basis of partly estimated gage-height record.
44 SANTA MARGARITA RIVER BASIN 

O'Neill ditch near Ysidora, Calif.

Location.- Water-stage recorder, lat. 33°19'40", long. 117°19'45", 100 feet upstream from 

 point of discharge into O'Neill Reservoir, and 6 miles northeast of Ysidora, San Diego 

County.

Records available.- October 1930 to September 1948. 

Average discharge.- 18 years, 3.43 second-feet.

Extremes.- Maximum daily discharge during year, 24 second-feet Feb. 6; no flow during 

several periods.

1930-48: Maximum daily discharge, 35 second-feet May 24, 1937; no flow during 

parts of each year.

Remarks.- Records good. Ditch diverts water from left side of Santa Margarita River about 

fci miles above station on'Santa Margarita River at Ysidora.

Cooperation.- Gage-height record and 246 discharge measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

?

3

4

5

R

7

R

3

10

11

1?.

IB

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.0

3.1

3.6

4.1

4.4

4.1

4.4

4.0

4.3

4.5

5.6

5.9

5.9

6.1

5.5

5.7

5.6

5.7

5.6

5.3

5.9

4.9

4.8

4.4

4.9

5.3

5.1

5.2

4.8

5.4

5.0

Nov.

5.5

6.0

5.6

5.2

5.6

5.5

5.4

6.3

7.4

6.8

6.8

6.7

6.7

6.7

7.2

6.9

6.6

6.4

6.6

6.8

6.8

7.5

7.8

8.2

8.1

7.8

8.0

8.1

8.2

8.2

-

Dec.

9.9

11

10

11

16

18

17

16

14

14

13

13

12

12

12

12

12

12

11

12

12

12

11

11

11

11

11

11

11

12

12

Jan.

12

12

12

12

12

12

12

12

11

12

11

11

9.9

9.5

9.8

9.9

10

11

11

10

1011

12

12

12

12

11

11

11

11

11

Feb.

11

12

12

12

15

24

21

19

17

17

16

16

16

15

15

14

14

14

14

14

14

14

14

13

12

12

12

13

13

_

-

Month

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

Calendar year 1947 ......................

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

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

Water year 1947-48 ......................

Mar.

13

12

12

12

11

11

11

11

12

11

11

11

11

14

14

13

13

13

12

13

12

12

11

11

14

14

14

13

13

13

13

Apr.

12

12

15

17

16

15

14

13

12

11

12

12

11

10

9.7

8.9

8.8

9.0

9.1

9.1

9.3

9.3

9.1

9.0

8.3

7.7

7.6

7.8

10

10

Secondfoot-days

152 1

382.9

1,366.8

425

324 7

12 5

2.3

2,490.9

May

9.7

8.7

7.6

6.7

6.3

5.8

6.2

7.0

6.7

5.6

4.9

4.8

4.8

4.1

4.5

4.4

3.6

3.3

3.8

4.2

4.4

4.9

4.8

4.6

4.1

4.1

4.2

4.5

4.8

5.1

5.8

Maximum

18

18

.5

24

June

5.6

7.0

7.0

6.4

6.1

5.0

4.2

3.3

2.7

2.7

3.1

3.9

3.6

2.9

2.4

2.1

1.5

1.2

1.7

1.9

1.8

2.2

2.4

2.1

1.7

2.0

2.2

1.9

1.5

1.3

Minimum

9.9

0

9 5

0

0

July

1.4

1.1

1.2

1.4

1.3

.8

.3

0

0

0

0

0

0

0

0

0

0

.3

.6

.1

.2

.3

.4

.7

.9

.6

.3

.3

.2

.1

0

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.2

.2

.4

.4

.1

0

Mean

12.4

3.74

5 29

.08

6.81

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1 -.2

.4

.5

.3

.3

.2

.3

Runoff in 

acre-feet

759

2,710

325

4.6

4,940
SAN JOAN CREEK BASIN 45 

San Juan Creek near San Juan Capistrano, Calif.

Location.- Water-stage recorder, lat. 33°30'50", long. 117°37'40", in Mission Viejo Grant, 

at Ortega State Highway bridge, 2.5 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 1948.

Average discharge.- 20 years,' 15.8 second-fpet.

Extremes.- Maximum discharge during year, 9.4 second-feet Feb. 5 (gage height, 1.99 feet); 

minimum daily, 0.1 second-foot on many days.

1929-48: Maximum discharge, 13,000 second-feet Mar. 2, 1938, by slope-area method, 

determined by Corps of Engineers; no flow at times during most summers.

Remarks.- Records fair. San Juan Mutual Water Co. diverted about 1,000 acre-feet above 

gage.

Cooperation.- Fifty discharge measurements furnished by Orange County Flood Control

District, through J. A. Bradley, flood-control engineer, and ten discharge measurements 

furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

?.4

25

26

27

28

29

30

31

Oct.

0.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.3

.4

.5

.5

.6

.5

.6

.5

.4

.5

.3

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

Nov.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.3

.2

.3

.3

.3

.3

.4

.4

.3

.3

.3

.3

.3

.3

.2

.2

.3

.3

.3

~

Dec.

0.3

.3

.3

.5

3.7

3.5

3.2

3.2

3.1

3.1

3.0

2.8

2.6

2.5

2.5

2.5

2.4

2.4

2.4

2.5

2.6

2.8

2.8

2.7

2.7

2.7

2.7

2.7

2.9

2.8

2.8

Jan.

2.7

2.7

2.6

2.6

2.6

2.5

2.4

2.3

2.2

2.1

2.1

1.5

.7

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

Feb.

0.5

.6

.5

.5

3.7

5.0

4.1

3.7

3.5

3.5

3.4

3.4

3.2

3.2

3.2

2,8

2.6

1.7

.9

.9

.8

.8

.8

.8

.7

.7

.7

.7

.7

-

-

Month

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

Calendar year 1947 .......................

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

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

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

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

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

Water year 1947-48 ... ..................

Mar.

0.6

.6

.5

.5

.5

.6

.6

.6

.3

.3

.3

.3

.3

.4

.4

.3

.4

.3

.3

.3

.2

.2

.4

1.6

2.1

2.0

1.9

2.0

2.0

2.0

2.0

Apr.

1.6

.6

1.9

2.2

.8

.8

.7

.6

.6

.6

.6

.6

.6

.5

.4

.4

.4

.4

.4

.4

.4

.5

.4

.4

.4

.4

.4

.4

.5

.4

-

Secondfoot-days

9.2

77.0

458.0

6.2

265.0

May

0.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.2

.2

Maximum

0.6

3.7

5.8

.3

5.0

June

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

-

Minimum

.3

.1

.1

.1

July

0.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

a. 2

a. 2

a. 2

a. 2

a. 2

.2

a. 2

.1

.1

.1

Aug.

0.1

.2

.2

.2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

a.l

a.l

a.l

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.2

.2

.2

Mean

O.3O

2.48

1.25

.21

.72

Sept.

0.2

.2

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

-

Runoff in 

acre-feet

18

153

907

9 5

12

524

Peak discharge (base, 2O sec.-ft.).- No peak above base.

a No gage-height record: discharge computed on basis of 10 discharge measurements and Interpolatlc
SAN JUAN CREEK BASIN

Trabuco Creek near San Juan Caplstrano, Calif.

Location.- Water-stage recorder, lat. 33°31'30", long.-117° 40'15", In SWij sec. 25, T. 7 

S., H. 8 W., on State highway bridge, 1.5 miles north of San Juan Capistrano.

Drainage area.- 36.5.square miles.

Records available.- October 1930 to September ,1948.

Average discharge.- 18 years, 6.71 second-feet.

Extremes.- Maximum discharge during year, 6.7 second-feet Dec. 5 (gage height, 1.86 feet); 

no now during most of year.

1930-48: Maximum discharge, 9,240 second-feet Feb. 6, 1937; no flow during part of 

each year.

Cooperation.- Records furnished by Orange County Flood Control District, through J. A.

Bradley, flood-control engineer.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1

0

0

0

.1

0

.1

0

.1.1.1

0

0

Nov.

0

0

0

0

o

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

Dec.

0

o

0

.2

.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.2

.1

0

0

.1

.1.1

.1

0

0

.2

Feb.

0

.1.1

0

.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

o

_

-

Month

October. ............................. j-. ....

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

Angus t .....................................

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

Water year 1947-48 ......................

Mar.

0

0

0

0

0

0

J

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

.1 o 

0

0

0

0

0

0

Apr.

Secondfoot-days

0.7'.1

.7

4.5

1.1

.5

.1

0

0

o

0

0

0

3.2

May

Maximum

0.1.1

.5

3.0

.2

.3

.1

0

0

0

0

0

0

.5

June

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jnly Aug. Sept.

Moor, Runoff in 

Mean acre-feet

0.02 1.4

.003 .2

.02 1.4

.01 9.0

.04 2.2

.02 1.0

.003 .2

0 0

0 0

0 0

0 0

0 0

0 0

.01 6.4
ALISO CREEK BASIN 47

Aliso Creek at El Toro, Calif.

Location.- Water-stage recorder, lat. 33°37'15", long. 117 0 41'20", in Canada de los Allsos 

Urant, 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 1948.

Average discharge.- 18 years, 0.94 second-foot.

Extremes.- Maximum discharge during year, 103 second-feet Dec. 5 (gage height, 6.90 feet); 

no flow during most of year.

1930-48: 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 J. A. 

Bradley, flood-control engineer.

Revisions (water year).- W 961: 1941(M).

Discharge, in second-feet, water year October 1917 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

0.5

0

0

0

o

0

o

0

2.1

0

0

0

0

0

0

o

0

o

0

o

o

0

0

0

0

0

0

0

0

0

-

Dec.

0

o

0

6.2

19

0

0

0

0

o

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan. Feb.

0

0

0

0

7.7

4.8

0

o

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

_

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

0

o

0

0

0

0

0

0

0

0

0

0

1.9

2.6

0

0

4.1

0

0

0

0

0

0

6.0

0

0

0

0

0

0

0

Apr.

0

0

' 110

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-

Secondfoot-days

0

2.6

25.2

66.4

0

12.5

14.6

11

0

0

0

0

0

65.9

May

Maximum

0

2.1

19

21

0

7.7

6.0

11

0

0

0

0

0

19

June

Minimum

0

0

0

0

0

o

o

0

0

0

0

0

0

0

July Aug.

Mean

0

.09

.81

.18

0

.43

.47

.4

0

0

0

0

0

.18

Sept.

Runoff in 

acre-feet

0

5.2

50

132

0

25

29

22

0

0

0

0

O

131
SANTA ANA RIVER BASIN

Santa Ana River near Mentone, Calif.

Location- Water-stage recorder, lat. 34"06'40", long. 117°06'00", in SWi sec. 4, T. IS., 

IT! ST., near mouth of canyon, 0.4 mile upstream from Southern California Edison Co.'s 

Santa Ana River No. 3 power plant, 2 miles upstream from Mill Creek, and 3.5 miles 

northeast of Mentone. Datum of gage is 1,984.28 feet (corrected) above mean sea level, 

datum of 1929. Auxiliary water-stage recorder at Greenspot Bridge, 1 mile downstream.

Drainage area.- 202 square miles, at present site; 195 square miles, at former site. These 

figures include area tributary to Baldwin Lake at head of Bear Valley.

Records available.- October 1914 to September 1948. July 1896 to September 1914 at site

1.5 miles upstream above Warm Spring Canyon.

Average discharge.- 34 years (1914-48), 38.8 second-feet. Average combined discharge of 

Santa Ana Hiver and canal, 34 years (1914-48), 97.0 second-feet.

Extremes (river only).- Maximum discharge during year, 157 second-feet Apr. 3 (gage height, 

s.bb reet j; no now during several months.

1896-1948: Maximum discharge, 52,300 second-feet Mar. 2, 1938, by slope-area method 

(gage height, 14.3 feet); no flow at times in some years.

Remarks.- Records good. Storage at Bear Valley Reservoir (capacity, 72,000 acre-feet) and 

diversions above station-. Sum of discharge of river at this station and of canal bypassing this station is given in table on following page. For October to May, canal 

discharge is computed as the sum of the two records, Southern California Edison Co.'s 

canal and Greenspot pipe line near Mentone (see pp. 58 , 59). For June to September, 

record from the new station, Southern California Edison Co.'s canal below power plant 

No. 2 (see p. 57) is used.

Revisions (water year).- W 931 : 1940.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

0

0

0

5.2

34

8.5

2.8

.3

.1

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan. Feb.

0

0

0

0

4.3

7.4

1.1

.5

.2

.1

.1

0

0 - o

0

0

0

0

0

o

o

0

0

0

0

0

0

0

0

_

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

1.5

8.2

2.5

3.3

2.0

2.0

6.4

2.5

1.3

.7

6.9

11

4.0

2.1

1.6

1.3

1.0

.6

Apr.

0.2

.4

46

53

f!3

a8

a5

f2.7

1.9

1.9

2.1

1.9

1.3

1.0

.8

.8

.7

.7

.7

.7

.9

.9

.9

.8

.7

.6

-.6

.8

23

5.1

Secondfcot-days

0

0

50.9

1,979.9

0

13.7

58.9

177.1

74.2

7.7

0

0

0

382.5

May

6.9

2.7

9.3

33

2.8

fl.4

1.2

1.0

.9

.9

.9

.8

.7

.7

.7

.7

.7

.8

.9

.8

.7

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

Maximum

0

0

34

44

0

7.4

11

53

33

.6

0

0

0

53

June

0.5

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

0

0

0

Minimum

0

0

0

0

0

0

0

.2

.5

0

0

0

0

0

July Aug.

Mean

0

0

1.64

5.42

0

.47

1.90

5.90

2.39

.26

0

0

0

1.05

Sept.

Runoff in 

acre feet

0

0

101

3,930

0

27

117

351

147

15

0

0

0

758
SANTA ANA RIVER BASIN

Combined discharge, in second-feet, of Santa Ana River and canalsnear Mentone, Calif., 

water year October 1947 to September 194R

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

44

42

44

43

42

43

43

47

46

48

45

42

44

44

36

33

31

34

35

34

34

34

34

36

36

37

37

37

36

38

36

Nov.

36

37

34

32

36

36

33

32

31

31

36

36

34

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

29

-

Dec.

31

32

27

52

75

34

33

30

28

26

27

32

32

32

32

32

32

30

31

31

29

29

29

28

28

28

29

29

29

30

28

Jan.

30

30

32

32

31

32

30

32

32

32

32

32

31

29

30

29

30

30

29

28

29

28

29

28

28

30

26

24

27

27

32

Feb.

28

30

26

25

33

32

30

30

30

33

30

28

28

32

31

32

34

35

34

32

32

33

33

32

30

31

33

34

33

-

Month

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

Calendar year 1947 ......................

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

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

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

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

Water year 1947-48 ......................

Mar.

31

28

31

32

31

31

32

32

32

32

32

32

31

40

49

44

50

44

43

48

46

43

43

48

51

49

47

45

44

44

43

Apr.

45

48

106

119

74

64

55

53

52

60

60

54

49

48

50

54

55

55

53

51

48

49

49

47

48

45

46

48

69

51

Secondfoot-days

995

16,869

1,709

15,750

May

52

48

35

49

49

45

45

46

45

43

42

42

41

39

41

48

48

48

51

43

41

39

39

46

44

40

45

46

46

46

46

Maximum

75

79

32

52

62

119

June

44

44

42

42

41

39

39

38

43

45

47

47

47

49

54

53

53

54

54

52

47

46

4S

46

51

54

54

54

54

54

Minimum

26

26

52

24

July

52

51

54

56

56

54

54

54

54

56

56

56

59

58

58

57

57

56

56

53

50

48

42

39

43

51

55

57

54

52

48

Aug.

47

50

54

52

52

52

47

44

49

52

53

52

52

52

52

52

52

55

56

58

55

55

55

55

55

56

55

58

58

58

58

Mean

39 2

32 3

32.1

46.2

31 2

57.0

43.0

Sept.

58

57

57

57

57

57

57

57

58

60

62

61

61

61

59

60

62

62

62

58

53

52

52

53

54

52

52

54

52

52

Runoff in 

acre-feet

1,970

33,450

3,390

31,220
SANTA ANA RIVER BASIN

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

Location.- Water-stage recorder, lat. 34°04'00", long. 117°17'45", in San Bernardino Grant, 

at K street Bridge, 0.8 mile downstream from San Timoteo Creek, 1 mile upstream from 

Warm Creek, and 3 miles south of San Bernardino, San Bernardino County. Altitude of 

gage, about 970 feet.

Records available.- March 1939 to September 1948.

Extremes.- Maximum discharge during year, 270 second-feet Feb. 5 (gage height, 4.42 feet); 

no flow during August, September, and parts of October and July.

1939-48: Maximum gage height recorded, 6.50 feet Jan. 23, 1943; maximum discharge 

uncertain; no flow on many days each year.

Remarks.- Records poor. Many diversions above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

o

o

.1

.2

.2

.1

.4

.9

1.1

1.3

1.5

1.7

2.0

2.0

1.7

1.5

1.7

1.7

1.4

1.7

1.7

1.7

1.2

1.1

1.7

1.2

1.4

1.2

Nov.

1.2

1.1

1.2

1.4

1.3

1.2

1.1

.8

.7

.8

.9

1.1

1.0

.9

.8

.8

.8

1.2

1.2

1.3

2.0

1.3

1.3

1.4

1.5

1.4

1.7

1.7

2.7

2.7

Dec.

2.2

1.4

1.7

3.1

29

5.5

4.0

6.6

4.4

3.7

5.1

7.6

7.0

6.0

5.5

4.0

3.2

2.7

2.7

2.9

2.4

2.4

2.2

2.7

2.9

3.4

2.9

2.9

2.4

3.2

3.4

Jan.

2.7

2.2

2.2

2.0

1.8

1.7

1.7

1.3

1.3

1.3

1.3

1.3

1.4

1.8

1.7

2.0

2.0

2.0

1.8

2.0

2.7

2.2

2.0

3.2

2.4

2.4

2.4

1.5

1.7

1.4

1.4

Feb.

1.4

1.7

1.5

1.7

50

f34

d25

d24

d23

d22

d21

d20

f20

21

18

14

8.8

11

11

11

12

12

12

11

10

9.4

9.4

8.8

9.4

_

-

Month

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

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

Calendar year 1947 ......................

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

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

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

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

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

Water year 1947-48 ......................

Mar.

9.0

3.8

3.6

3.3

2.9

2.9

2.7

2.5

3.3

2.9

2.7

2.3

6.0

11

f3.8

f3.0

3.9

3.1

2.9

4.1

4.4

3.6

4.7

9.6

5.4

4.1

5.4

6.1

5.4

4.4

5.0

Apr.

3.3

3.6

15

f!6

dlO

f7.8

5.7

7.8

7.8

7.8

8.3

6.5

f5.5

d3.0

f7.0

d3.0

d3.0

d3.0

2.9

d2.0

d2.0

d2.0

fl.7

1.6

1.7

1.2

1.4

1.4

12

2.7

-

Secondfoot-days

33.5

38.5

139.1

-

58.8

137.8

23.4

0

1,056.6

May

1.4

1.2

1.1

1.1

1.2

1.2

1.1

.7

.6

.6

.6

.5

.6

.5

.6

.4

.6

.9

1.5

1.7

1.7

1.0

.6

.7

.5

.5

.6

.6

.6

.5

.9

Maximum

2.0

2.7

29

-

3-: 2

50

11

16

1.7

8.5

.9

0

50

June

3.6

3.5

1.1

1.0

.6

.6

.6

.6

.4

.4

.3

.3

.2

.3

.2

.2

.1

.2

.3

.2

.3

.6

.3

.3

.3

.6

.3

.4

.3

.3

-

Minimum

0

.7

1.4

0

1.3

1.4

2.3

1.2

.4

.1

0

0

0

0

July

0.2

.3

.5

.2

.2

.1

0

0

0

0

.1

.7

.5

.4

 6

.1

.2

0

O

0

.2

.9

O

0

0

.1

.6

.9

.9

.7

0

Aug.

Mean

1.08

1.28

4.49

4.90

1.90

15.0

4.45

5.22

.85

.78

.27

0

0

2.89

Sept.

Runoff in 

acre-feet

66

76

276

3,540

117

861

273

311

52

46

17

0

O

2,100

d Doubtful gage-height record; discharge Interpolated, or computed on basis of normal recession, 

f computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN

Santa Ana Rii/er at Riverside Narrows, near Arlington, Calif.

Location.- Water-stage recorder, 1st. 33°57'55", long. 117°27'55", in Jurupa (Stearns)

Grant, at Pedley Road Bridge, 3.3 miles northwest of Arlington, Riverside County. Datum 

of gage, 669.87 feet above mean sea level (levels by Riverside County engineer).

Records available.- January 1929 to September 1948.

Average discharge.- 18 years' (1929-37, 1938-48), 63.0 second-feet.

Extremes.- Maximum discharge during year, 720 second-feet (gage height, 3.34 feet) Apr. 4; 

minimum daily discharge, 22 second-feet on many days during July to September,.

1929-48: Maximum discharge, 100,000 second-feet Mar. 2, 1938, by slope-area method; 

minimum daily, 20 second-feet on several days during August, September 1947.

Remarks.- Records in general are fair; for many individual days they are poor. Considerable 

diurnal fluctuation occurs throughout season of low flow, but it is unlikely that variation in discharge from day to day is as great as that indicated by daily figures. 

There are many diversions for irrigation and power development in basin above this station. Local diversions affected by flow in April.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

34

42

38

34

31

34

31

34

31

38

42

38

38

46

46

42

42 ,

38

34

38

34

31

34

34

34

42

38

42

42

42

50

Nov.

38

34

38

31

38

31

34

42

42

34

42

46

50

55

55

60

60

55

55

60

55

46

50

42

50

55

46

50

46

46

Dec.

60

55

42

55

150

55

50

42

46

42

42

42

42

38

46

42

42

42

50

70

75

70

70

65

70

70

70

70

65

65

65

Jan.

60

55

55

50

55

60

60

55

55

55

75

60

50

46

50

50

50

50

46

50

50

50

55

55

55

55

50

50

50

55

42

Feb.

38

42

42

38

170

195

46

42

55

55

42

42

46

55

50

60

60

60

55

70

91

91

85

70

65

60

60

55

60

_

-

Month

Qctober. ...................................

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

50

42

46

42

42

46

50

50

50

50

46

38

55

65

55

42

46

46

42

38

50

50

55

90

106

70

70

70

7O

60

50

Apr.

38

34

146

280

133

109

70

55

60

70

70

50

46

31

28

28

28

28

28

28

28

28

31

31

28

28

28

28

54

38

-

Secondfoot-days

1,174

1,386

1,808

'

1,654

1,900

1,682

1,682

1 , 186

915

954

788

16,396

May

38

42

38

38

34

42

38

34

38

34

28

31

31

34

34

34

38

38

42

42

42

42

46

38

42

50

42

38

38

38

42

Maximum

50

60

150

75

195

106

50

70

42

42

34

280

June

70

65

46

42

42

38

38

34

50

46

46

46

46

42

42

34

3<>

34

42

42

34

42

38

42

42

42

38

42

34

34

-

Minimum

31

31

38

20

42 

38

28

34

22

22

22

22

July

38

31

28

25

22

25

31

28

28

22

28

34

34

28

28

34

42

31

38

38

31

34

31

22

22

25

28

31

31

25

22

Aug.

28

28

31

31

28

28

31

31

31

34

31

38

31

34

31

28

22

22

28

28

38

42

31

31

22

31

34

34

38

34

25

Mean

37.9

46.2

58.3

54 * ?

65 5

54. 3

sell

38.3

42.2

29.5

30 . 8

26.3

44.8

Sept.

22

25

28

28

31

25

28

31

31

34

31

31

25

25

25

25

22

22

25

28

28

28

25

25

25

22

25

22

22

24

~

Runoff in 

acre feet

2,330

2,750

3,590

39,270

3, 280

3,770

3,340

3,340

2,350

2,510

1,810

1^560

32,520

Peak discharge (base, 500 sec.-ft.)- Dec. 5 (3:15 a.m.) 620 sec.-ft.; Feb. 6 (6 a.m.) 520 sec.-ft. 

Apr. 4 (1 a.m.) 720 sec.-ft.
52 SANTA ANA RIVER BASIN

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

Location.- Water-stage recorder, lat. 33"56'50", long. 117"33'30", in Jurupa Grant, at 

Hamner Avenue Bridge, 5 miles north of Corona, Riverside County. ' Altitude of gage, 

about 570 feet (from topographic map).

Records available.- May 1930 to November 1948 (irrigation seasons only). 

Remarks ._- Records, fair.

Cooperation.- Twenty-one discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, January to De

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Jan.

t52

Feb.

t63

Mar.

t51

Apr.

.

t56

-

_

-

.

_

_

_

-

.

_

_

_

-

-

-

-

-

-

_

-

-

-

-

t46

44

46

67

54

-

May

46

46

42

39

39

42

44

46

46

51

44

42

37

37

37

42

42

37

39

42

39

39

48

44

44

48

48

48

39

42

48

Month

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

June ..........................."............

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

Anp-iT^f

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

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

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

The period .......... .....................

June

56

62

48

46

46

42

42

37

42

44

42

42

39

39

39

36

37

36

36

44

44

42

37

34

29

32

34

32

29

30

July

36

34

30

29

26

26

29

28

28

29

30

32

32

28

28

26

30

30

30

30

30

32

34

26

26

26

25

26

26

23

21

Aug.

24

2

2

2

6

5

6

28

30

- 3

3

3

0

0

0

29

34

3

3

2

2

D

9

28

26

2

2

2

3

?

3

25

23

3

2

3

t

3

1

28

28

3

3

2

3

2

D

3

?

29

SeOOnd- Ma-»-i,ni,n, foot-days Maximum

' 1,327 51

1,198 62

886 36

882 34

808 34

1,297 60

1,448 59

-

Sept.

25

23

25

24

22

25

26

25

25

24

24

25

25

26

26

28

28

28

26

30

30

29

29

29

30

29

28

28

32

34

Minimum

37

29

21

22

22

32

36

-

Oct.

36

34

32

34

39

37

36

34

36

37

37

36

37

39

39

39

42

59

51

48

44

46

44

44

44

44

44

a 45

a50

a60

a 50

Nov.

46

46

48

46

44

46

59

54

54

56

54

59

54

51

51

54

56

51

56

56

46

39

44

44

44

44

36

36

37

37

-

Dee.

t41

t58

-

_

_

_

-

.

_

_

-

-

.

_

-

_

-

.

-

_

_

-

_

-

_

_

-

t54

 .__ Runoff in Mean aore-feet

42.8 2,630

39.9 2,380

28.6 1,760

28.5 1,750

26.9 1,600

41.8 2,570

48.3 2,870

15,560

t Result of discharge measurement.

a Ho gage-height record; discharge computed on basis of records at related stations.
SANTA ANA RIVER BASIN 53 

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, 2 miles upstream from Temescal Creek and 4 miles northwest of Corona, 

Riverside County.

Records available.- May 1930 to November 1948 (irrigation seasons only). 

Remarks.- Records fair.

Cooperation.- Twenty-one discharge measurements furnished by Orange County Flood Control 

iiistrict, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, January to Dece

Day

1

2

3

4

5

6

7

8

9

10

11

12

1314'

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Jan.

t70

Feb.

t!05

Mar.

t81

Apr.

_

t73

-

-

_

-

_

-

_

-

-

-

-

_

-

-

-

-.

_

-

-

_

-

t54

50

54

71

61

-

May

61

64

56

54

58

58

56

61

56

61

61

54

50

48

48

46

45

45

46

48

48

54

58

54

58

64

61

64

54

56

56

Month

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

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

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

Augus t .....................................

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

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

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

The period ...............................

June

58

71

56

54

50

45

45

45

45

52

50

50

46

43

45

46

42

43

42

48

45

48

46

46

43

46

46

46

42

43

-

July

45

45

43

40

37

37

37

39-

36

39

40

42

42

40

40

42

45

46

45

43

42

36

34

32

33

33

34

33

34

33

32

Aug.

34

37

35

33

32

31

32

34

36

36

36

36

36

36

35

34

32

30

31

32

32

37

37

40

39

39

42

40

40

39

37

£££. -* 

,703 64 

,427 71

199 46

: |ioo 42

,202 48

,620 64

,648 64

-

Sept.

36

35

34

34

34

35

36

37

37

37

37

37

37

37

37

39

39

42

45

45

46

45

45

46

46

45

43

45

46

43

-

Minimum

4S 

42

32

3C

3<

4C

46

-

Oct.

43

42

4O

43

48

50

46

45

48

52

54

54

52

46

48

45

48

64

56

54

58

56

56

56

61

58

61

56

58

64

56

Nov.

54

56

58

56

52

50

56

48

52

54

58

61

56

54

56

64

58

52

56

58

52

52

56

58

56

61

50

52

52

50

-

Dec.

t54

_

t69

-

-

_

_

-

_

-

.

_

-

_

-

_

_

-

-

-

_

-

-

-

-

_

-

-

_

-

t57

 _ Runoff in Mean acre-feet

54.9 3,380 

47.6 2,830

48.7 2,380

35.5 2,180

40.1 2,380

52.3 3,210

54.9 3,270

19,630

t Result of discharge measurement. 

889419 O - 50 - 5
54 SANTA ANA RIVER BASIN

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, 

1,750 feet downstream from Prado Dam and 1 mile southwest of Prado, Riverside County. 

Datum of gage is approximately 449 feet above mean sea level (Corps of Engineers survey) .

Records available.- March 1940 to September 1943. January 1919 to November 1940, and for 

irrigation seasons, May to November 1941, 1942, 1945-1948 at site 3 miles downstream, 

published as Santa Ana River near Prado (see following page).

Average discharge.- 29 years,(1919-48), 145 second-feet.

Extremes.- Maximum discharge during year, 860 second-feet Feb. 6 (gage height, 3.60 feet); 

minimum daily discharge, 35 second-feet Aug. 18, Sept. 1.

1940-48: Maximum discharge, 2,260 second-feet (regulated) Dec. 24, 1940 (gage height, 

3.20 feet); minimum daily, 35 second-feet Aug. 18, Sept. 1, 1948.

Remarks.- Records fair. Many diversions above station for irrigation. Discharge re^ulated by Prado flood-control -lam.

Cooperation.- Thirty-one discharge measurements furnished by Corps of Engineers; nineteen 

by orange County Flood Control District, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

58

59

58

56

58

59

61

61

63

66

68

70

70

72

68

68

70

70

66

66

66

66

66

68

68

68

68

68

72

74

74

I

Nov.

74

76

76

74

74

72

70

74

80

84

80

80

80

84

84

82

78

80

82

84

90

86

84

82

84

88

90

88

92

94

Dec.

96

99

94

105

200

154

124

111

103

92

86

84

80

88

94

94

96

92

92

99

111

116

111

106

108

113

113

118

121

134

124

Jan.

124

108

99

101

105

106

94

92

94

101

108

103

94

94

96

99

C98

C96

C94

92

90

94

96

96

99

92

95

90

94

101

96

Feb.

96

103

106

99

195

46O

215

127

116

113

103

96

113

121

129

132

126

118

113

129

137

140

129

108

111

103

99

96

99

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 194^-48 ......................

liar.

103

108

101

96

90

99

101

101

101

96

96

99

99

132

132

106

116

106

103

108

106

106

103

127

170

118

106

118

126

118

106

Apr.

103

99

143

370

195

151

134

118

113

124

137

118

99

92

88

84

82

76

80

86

90

90

88

82

76

78

76

80

101

88

-

Secondfoot-days

2,045

2,446

3,358

34,579

3,041

3, 832

3 341

s!l06

2,018

1 524

l!347

1,344

29,799

Hay

84

76

76

74

74

76

78

74

72

70

70

70

61

56

61

61

a60

a59

a59

a60

a60

a60

a61

a62

a70

a75

a74

72

63

66

72

Maximum

74

94

200

257

124

460

170

370

84

92

50

54

460

June

78

92

84

80

72

68

70

70

74

80

66

64

61

61

61

63

63

63

63

66

66

66

70

68

59

59

58

61

58

54

-

Minimum

56

70

80

36

90

96

90

76

56

54

39

35

35

35

July

58

56

54

54

51

47

47

48

47

45

48

51

51

48

47

47

50

56

54

54

53

51

53

51

47

48

45

41

43

40

39

Aug.

39

41

44

36

40

43

44

43

43

41

44

45

45

45

45

44

39

35

36

39

40

47

48

48

48

47

48

50

47

48

45

Mean

66.0

81.5

108

94.7

132

110

111

67 . 3

49 . 2

43)5

44.8

81.4

Sept.

35

36

40

39

39

40

39

40

40

39

41

44

45

43

39

43

45

48

51

51

53

53

54

53

53

50

51

48

45

47

-

Runoff in 

ao re-feet

4,060

4,850

6,660

68,580

6,030- 

7,6OO

6,740

6,630

4,180 

4,000

3,020

2,670

2,670

59,110

- a Ho gage-height record; discharge computed on basis of 4 discharge measurements and recorded 

In stage.

c Backwater from construction work; discharge Interpolated.
SANTA ANA RIVER BASIN 

Santa Ana River near Prado, Calif.

Location.- Water-stage recorder, lat. 33°52 I 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 November 1940; irrigation seasons, May to November 

1941, 1942, T335-1948.

Average discharge.- 21 years (1919-40), 145 second-feet.

Extremes.- 1919-48: Maximum discharge, 100,000 second-feet (estimated) Mar. 3, 1938 

(gage height, 17.3 feet, site and datum .then in use, from floodmarks in gage well); 

minimum, 25 second-feet Aug. 18, 1929, Aug. 24, 1936.

Remarks.- Records fair. Diversions for irrigation and regulation by Prado flood-control 

dam above station.

Cooperation.- Twenty-two discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Revisions (water year).- W 881: 1938.

Discharge, In second-feet, January to Decembe

Day

1

2

3

4

5

6

7

8

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Jan.

t89

Feb.

t!13

Mar.

tl09

Apr.

.

tl!4

_

_

-

.

_

-

_

-

.

_

_

.

-

.

_

_

-

_

_

_

-

83

83

81

100

89

-

May

81

75

73

68

68

68

71

75

68

73

73

71

66

66

68

71

64

60

64

64

64

64

68

68

71

78

83

78

66

66

75

Month

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

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

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

Septemter. .................................

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

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

The period .............. .................

June

75

100

81

78

73

71

71

68

64

71

71

71

66

64

62

60

54

56

56

64

64

64

66

68

64

64

66

60

56

54

July

52

49

52

54

52

47

49

47

44

41

47

52

54

50

46

45

44

49

49

52

52

49

52

47

41

46

45

43

45

39

35

Aug.

35

40

39

41

43

44

49

44

41

39

43

44

43

41

40

43

37

35

39

41

40

41

45

46

49

43

44

44

43

41

36

Sept.

35

35

35

39

40

43

43

41

45

44

44

47

46

44

41

41

43

44

50

54

56

56

56

54

54

54

52

50

49

47

-

foo^ays -Uaximu" «inimu*

2,168 83 60

2,002 100 54

1,469 54 35

1,293 49 35

1,382 56 35

2,085 87 49

2,213 89 56

-

Oct.

52

49

54

56

68

68

60

56

56

64

64

68

68

71

68

73

83

87

83

78

75

73

64

62

60

62

68

66

68

78

83

Nov.

81

78

78

78

62

56

62

62

60

66

68

68

71

73

71

75

81

81

83

86

78

66

73

83

89

83

78

75

73

75

-

Dec.

t78

_

t88

_

-

.

-

-

_

-

_

_

_

-

-

.

-

-

-

-

_

-

-

_

-

_

-

-

-

-

t83

Mean Runof J *? *"*" acre-feet

69.9 4,300

66.7 3,970

47.4 2,910

41.7 2,560

46.1 2,740

67.3 4,140

73.8 4,390

^5,010

t Result of discharge measurement.
56 SANTA ANA RIVER BASIN

Santa Ana River at Santa Ana, Calif.

Location.- Water-stage recorder, lat. 33 0 45'00", long. 117°54'20", in Las Bolsas Grant, 

at Fifth Street Bridge in Santa Ana, Orange County, and 2 miles downstream from Santiago Creek. Prior to June 21, 1948, at site 600 feet upstream. Altitude of gage, about 

80 feet.

Records available.- January 1923 to September 1948. 

Average discharge.- 25 years, 25.6 second-feet.

Extremes.- Maximum discharge during year, 25 second-feet Apr. 3 (gage height, 1.12 feet); 

no flow during several months.

1923-48: Maximum discharge, 46,300 second-feet Mar. 3, 1938 (gage height, 10.20 

feet), by slope-area method; no flow for several months each year.

Remarks.- Records poor. During irrigation season canal of Anaheim Union Water Co. and

canal of Santa Ana Valley Irrigation Co. divert entire flow of river at points near Atwood, 19 and 16 miles, respectively, above station. Regulation by Prado flood-control 

dam 23 miles above station. At times there are small amounts of return irrigation water 

from Santa Ana Valley Irrigation Co.'s drain at Ninth Street above station.

Cooperation.- One discharge measurement furnished by Orange County Flood Control District, 

through J. A. Bradley, flood-control engineer.

Discharge,' in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

y

10

11

12

14

16

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.2

.1

0

0

Nov.

0

0

0

0

o

0

0

0

.1

0

.1

0

0

0

0

0

0

0

o

.2

.1

.1

.1

.1

0

0

0

Dec.

0

0

.1

.1

0

0

0

o

0

O

0

o

o

0

0

0

.2

.2

.1

.1

0

0

0

.2

.3

.4

.2

.2

.2

Jan.

0.2

.1

.2

.3

.3

.3

.3

.3

.2

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

o

0

.1

0

Feb.

0

0

0

.2

.2

.1

0

O

0

0

00'

0

0

0

0

0

0

0

0

0

.3

.4

.3

.2

.3

.4

.2

0

_

-

Month

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

Calendar year 1947 ......................

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

May

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

Water year 1947-48 ......................

Mar.

0.1

0

0

.1

.1

0

0

0

0

0

0

0

0

.1

.4

.4

0

0

al.O

aS.O

0

al.O

0

0

0

0

0

0

O

Apr.

0.2

.4

4.7

.1

.1

.1

0

0

0

0

0

0

0

.2

0

0

r.o

.2

0

.2

.3

.3

.4

.1

0

0

.2

.3

.3

.6

Secondfoot-days

2.2

2.6

267.9

2 5

0

39.1

May

0.3

.4

.3

.5

.1

0

0

0

.1

0

0

0

0

0

o

.1

.4

.1

0

0

o

0

0

0

0

0

0

0

o

.2

o

Maximum

0.2

.4

14

0

8.0

June

0

0

0

0

0

o

0

0

0

.2

0

0

o

0

0

0

0

0

0

.2

.3

.1

0

0

0

0

0

0

0

0-

Minimum

0

0

0

0

July Aug.

Mean

.08

.73

0

.11

Sept.

Runoff in 

acre- feet

 5. "2

532

5 2

0

77

Peak discharge (base, 150 see.-ft.).- No peak above base.

a No gage height record; discharge computed on basis of records for Santiago Creek at Santa Ana.
SANTA ANA RIVER BASIN 57

Southern California Edison Co.'s canal below power plant No. 2, near Mentone, Calif.

Location.- Water-stage recorder, lat. 34°07'40", long. 117°04'25", in SE^NE^- sec.34, T. 1 

h., K. 2 W., 75 feet downstream from tailrace of Southern California Edison Co.'s Santa 

Ana River power plant No. 2, 3 miles upstream from plant No. 3, and 5.5 miles northeast 

of Mentone.

Records available.- June to September 1948.

Extremes.- Maximum daily discharge during period, 62 second-feet Sept. 11; minimum daily, 

3b second-feet June 8.

Remarks.- Records good. Canals of Southern California Edison Co. divert water from Santa 

Ana Kiver and tributaries for use successively in three power plants, of which No. 2 is 

the middle one and No. 3 is the lowest. This canal receives water from plant No. 2, 

from a bypass around plant No. 2, and from ground water pumped into canal above this 

station. There are no wastevrays nor artificial additions of water between this station 

and the forebay of plant No. 3 where water is diverted into Greenspot pipe line (see 

P. 5P).

Cooperation.- Gage-height record and four discharge measurements furnished by Southern 

California Edison Co.

Discharge, in second-feet, water year October 1947 to September 194

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

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

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

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

Calendar year ......................

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

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

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

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

Hay

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

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

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

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

The period ..............................

Mar. Apr.

Secondfoot-days

_

1,428

1,646

1,651

1,709

.-

May

Maximum

_

54

59

58

62

-

June

a44

43

42

42

41

39

39

38

43

45

47

47

47

49

54

53

53

54

54

52

47

46

42

46

51

54

54

54

54

54

-

Minimum

_

_

_

_

_

38

39

44

52

-

July

52

51

54

56

56

54

54

54

54

56

56

56

59

58

58

57

57

56

56

53

50

48

42

39

43

51

55

57

54

52

48

Aug.

47

50

54

52

52

52

47

44

49

52

53

52

52

52

52

52

52

55

56

58

55

55

55

55

55

56

55

58

58

58

58

Mean

.

_

_

_

_

47.6

53.1

53.3

57.0

-

Sept.

58

57

57

57

57

57

57

57

58

60

62

61

61

61

59

60

62

62

62

58

53

52

52

53

54

52

52

54

52

52

-

Runoff in 

acre feet

_'

_

_

_

_

2,830

3,260

3,270

3,390

12,750

a No gage-height record; discharge estimated same as total of flow through No. 3 power plant plus 

Greenspot pipe line.
58 SANTA ANA RIVER BASIN

Southern California Edison Co.'s canal near Mentone, Calif.

Location.- Rated electrical output of Southern California Edison Co.'s Santa Ana River No. 

 3 plant, lat. 34°06'20", long. 117°05'55", in SW£ sec. 4, T. 1 S., R. 2 W. , 3 miles 

northeast of Mentone.

Records available.- July 1896 to September 1898 (monthly discharge only); March 1901 to 

May J.yua, fragmentary; January 1904 to September 1948, when publication of record is 

discontinued.

Average discharge.- 44 years (1904-48), 53.2 second-feet.

Extremes.- Maximum daily discharge during year, 60 second-feet Apr. 4; minimum daily, 10 

second-feet May 4.

1896-1948: Maximum daily discharge, 97 second-feet Mar. 16, 1905; no flow for 

short periods in most years.

Remarks.- Canals of Southern California Edison Co. divert water from Santa Ana River and 

tributaries for use successively in three power plants, of which plant No. 3 is lowest. 

This canal, which heads at tailrace of plant No. 2 in SE^NE^ (corrected) sec. 34, T. 1 

N., R. 2 W., about 3 miles upstream from plant No. 3, also receives canal water which 

bypasses plant No. 2, and some ground water pumped into this canal near its head, but no 

water by surface diversion from river or tributaries. There are no wasteways between 

head of this canal and forebay of plant No. 3. Greenspot pipe line (see following page) 

diverts from forebay. Discharge record given here is computed from twice-daily readings of electrical output of plant No. 3, supplemented by estimates of discharge over 

emergency spillway at plant, which normally discharges no water. Some water also is 

used for domestic supply at this plant.

Cooperation.- Records furnished by Southern California Edison Co.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

35

33

35

34

33

34

34

38

37

39

36

33

35

35

27

24

22

25

26

26

27

27

27

29

29

30

30

30

29

31

29

Nov.

29

30

27

25

29

29

26

25

24

24

29

29

27

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

22

-

Dec.

24

25

20

40

38

25

30

30

28

26

27

31

29

29

29

29

29

27

28

28

26

26

26

25

25

25

26

26

25

24

22

Jan.

24

24

26

26

25

26

24

26

26

26

26

26

25

23

24

23

24

24

23

22

23

22

23

22

22

24

20

18

21

21

26

Feb.

22

24

20

19

23

19

23

23

24

27

24

22

22

26

25

26

28

29

28

26

26

27

27

26

24

25

27

28

27

_

-

Month

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

Calendar year 1947 ......................

Mnv

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

Water year 1947-48 ......................

Mar.

25

22

25

26

25

25

26

26

26

26

26

26

25

33

35

36

41

36

35

36

37

36

36

35

34

39

39

37

37

37

36

Apr.

39

42

54

60

55

50

44

44

44

52

52

46

42

41

43

47

48

48

46

44

41

42

42

40

41

38

39

41

40

40

-

Second 

foot-days

959

759

848

12,316

1 159

1,220

12,128

May

39

39

20

10

40

38

38

39

38

36

35

35

34

32

34

41

41

41

42

33

31

29

29

36

34

30

35

36

36

36

37

Maximum

39

40

65

47

60

June

35

34

33

32

31

29

27

26

31

32

36

36

36

36

40

40

41

41

42

12

36

35

31

33

38

41

44

41

41

41

-

Minimum

20

2

18

28

36

10

July

39

36

42

43

44

44

43

43

43

42

42

42

46

46

45

46

45

43

44

40

40

34

30

28

29

36

38

42

41

39

32

Aug.

28

35

37

37

36

36

32

30

34

38

39

37

38

38

36 

36

37

39

42

41

40

38

40

39

39

37

36

42

42

41

39

Mean

30 9

25 3

27.4

33.7

40.7

33.1

Sept.

40

38

42

39

39

40

41

41

41

44

45

46

46

, 45

42

45

44

47

41

39

36

36

39

38

36

36

38

37

36

~

Runoff in 

acre-feet

1,680

24,420

2,420

24,050
-SANTA ANA RIVER BASIN

Greenspot pipe line-near Mentone, Calif.

Location.- Staff gage and sharp-crested weir, lat. 34°06'20", long. 117°05'55", in SW£ sec. 

4, T. 1 S., R. 2 W., at point of diversion from forebay of Southern California Edison 

Co.'s Santa Ana River No. 3 power plant, 3 miles northeast of Mentone.

Records available.- September 1911 to September 1948. August 1897 to December 1901, April 

19U3 to December 1904 (fragmentary) about 1 mile upstream near former point of diversion 

from Santa Ana River; records not entirely comparable.

Average discharge.- 37 years (1911-48), 6.00 second-feet.

Extremes.- Maximum daily discharge .during year, 9.0 second-feet Oct..1-19, May 20 to 

Sept. 30; no flow Dec. 6-11.

1911-48: Maximum daily discharge, 11 tocond-feet June 12, 1943; no flow for at 

least short periods each year.

For long periods during most years, daily discharge has been reported as 9.0 secondfeet.

Cooperation.- Records furnished by Southern California Edison Co.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

! .0

.8

.0

.0

.0

.0

.0

.0

.0

.0

.0

7.0

7.0

' Nov.

7.0

7.0

7.O

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.O

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.O

7.0

7.0

7.0

-

Dec.

7.0

7.0

7.0

7.0

2.7

O

0

0

0

0

0

1.2

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

3.0

3.0

3.0

4.2

6.0

6.0

Jan..

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

Feb.

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

_

-

Month

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

Calendar year 1947 .......................

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

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

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

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

Hater year 1947-48 ......................

Mar.

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0 6>.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6,0

6.0

Apr.

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

Secondfoot days

96.1

2,575.7

270.0

2,610.0

May

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

8.1

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

Maximum

7.0

9.0

9.0

9.0

June

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

-

Minimum

0

o

9.0

0

July

9.0 -9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

Aug.

9.0

9.0

9.0

9.0

9.0

9.Q

9.0

9.0

3.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

Mean

3.10

7.O6

9.00

7.13

Sept.

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0.

9.0

9.0

9.0

9.0

9.0

Runoff in 

acre feet

191

5,110

536

5,180
60 SANTA ANA RIVER BASIN

Mill Creek near Graftonville, Calif.

Location.- Water-stage recorder, lat. 34°05'20", long. 117°02'25", in NE^NEi sec. 13, T. 

1 a., K. 2 W., at State highway "bridge, 0.2 mile northeast of Southern California 

Edison Co. ' s Mill Creek Nos. 2 and 3 powerhouse, 5 miles upstream from mouth and 

5 miles northeast of Craftonville. Datum of gage, 2,915 feet above mean sea level 

(Southern California Edison Co. datum).

Drainage area.- 39.9 square miles.

Records available.- January 1919 to September 1938, October 1947 to September 1948.

A/erage discharge.- 20 years (1919-38, 1947-48), 15.4 second-feet. Average combined discharge, river and canals, 20 years (1919-38, 1947-48), 38.5 second-feet.

Extremes.- Maximum discharge during year, 4.5 second-feet Feb. 5 (gage height, 6.61 feet); 

minimum daily, less than 0.1 second-foot at times.

1919-38, 1947-48: Maximum discharge, 18,100 second-feet Mar. 2, 1938; all water 

diverted into Mill Cree.k power canal No. 1 at various times.

Remarks.- Records fair. Mill Creek power canals Nos. 1, 2, and 3 divert from points 100 

feet above, 3 miles above, and 6 miles above station, respectively. Sum of discharge 

of creek, Mill Creek power canal 1, and Mill Creek power canals 2 and 3, near Craftonville, is given in table on following page.

Discharge, in second-feet, water year October 1947 to baptember 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

 aO.l

Nov.

. aO.l

-

Dec.

. aO.l

Jan.

. aO.l

I

'

Feb.

0.1

.1

.1

.1

1.5

al.5

a. 6

a. 4

a. 3

a. 2

. .1

-

Month

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

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

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

Calendar year ......................

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

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

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

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

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

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

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

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

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

Water year 1947 48 .......................

Mar.

> 0.1

.2

Apr.

0.2

.2

.5

a. 6

a. 5

a. 4

a. 3

.2

.1

.5

a. 4

-

Secondfoot-days

3.1

3.0

3.1

-

3.1

6 . 8

4.7

6 . 5

5.1

4.5

3.1

3.1

3.0

49.1

May

aO.3

a. 2

a. 2

> .1

.2

Maximum

_

-

-

1.5

.6

.3

_

-

1.5

June

0.2

,

.1

t

-

Minimum

_

-

-

_

_

_

_

-

-

July

0.1

Aug.

. 0.1

Mean

0.1

.1

.1

-

.1

.23

.15

.22

.16

.15

.1

.1

.1

.13

Sept.

 0.1

Runoff in 

acre-feet

6.1

6.0

6.1

-

6.1

13

9.3

13

10

8.9

6.1

6.1

6.0

97

Peak discharge (base, 10 sec.-ft.).- No peak above 

a J)o gage -he ightre cord 7 discharge interpolated.
SANTA ANA RIVER BASIN 61

Combined discharge, in second-feet, of Mill Creek and canals near Craftonvllle, Calif., 

water year October 1947 to September 1948

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.

 14.1

16.0

15.4

15.6

15.3

15.2

15.2

15.5

15.7

15.8

16.0

16.1

16.8

16.7

16.3

15.9

15.8

15.6

15.6

15.2

15.3

15.4

15.6

15.6

15.4

14.7

14.7

14.9

15.2

15.2

15.2

Nov.

15.2

15.0

15.1

13.6

12.1

12.0

11.8

13.7

15.4

15.3

15.2

15.2

15.2

15.6

15.6

15.4

15.2

15.2

15.4

15.6

15.2

14.8

14.5

14.2

14.7

14.7

14.2

13. -8

13.8

13.8

-

Dec.

14.6

14.6

14.2

18.0

15.9

14.9

17.9

16.6

15.6

15.6

15.8

15.8

15.5

16.0

16.3

16.1

16.0

15.9

16.0

16.3

16.0

15.9

16.3

16.2

15.9

16.7

17.1

16.9

17.1

15.1

14.8

Jan.

15.5

16.0

16.1

15.2

15.8

15.6

15.6

16.0

16.0

16.0

16.1

16.0

16.0

15.6

15.7

15.6

15.4

15.2

15.3

15.2

15.2

14.9

15.1

14.7

14.7

15.3

15.1

13.9

14.2

14.5

14.7

Feb.

14.9

14.8

14.3

14.9

15.9

10.8

12.9

14.3

15.6

17.2

15.9

15.3

15.1

16.3

16.9

16.8

16.4

17.5

18.4

18.1

17.7

17.7

17.7

18.3

16.9

16.7

16.3

16.7

16.5

_

-

Month

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

Calendar year ......................

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

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

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

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

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

Water year 1947-48 ......................

Mar.

16.3

16.3

15.8

15.8

15.8

15.6

15.6

15.6

15.7

15.7

15.7

15.7

15.8

17.0

17.3

17.4

17.9

17". 6

17.4

17.0

16.7

17.1

18.4

18.5

19.3

19.9

21

20

19.8

19.1

19.2

Apr.

19.6

20

23

24

23

21

21

19.9

20

23

24

22

22

21

22

24

26

27

24

25

24

24

24

22

22

23

24

23

27

25

Secondfcot-days

495.6

.

300.1

5,917.5

May

25

24

24

24

25

26

26

25

25

24

24

25

24

25

25

25

23

24

23

23

23

22

23

22

22

22

19.1

22

22

20

20

Maximum

18.0

-

12.2

27

June

20

21

20

20

19.5

19.7

19.0

19.1

19.1

18.5

18.7

18.7

17.8

17.8

17.4

17.4

17.4

16.8

17.4

16.9

16.1

16.7

16.3

16.2

16.4

16.0

16.0

15.8

15.0

14.9

Minimum

14.2

-

7.6

7.6

July

14.7

14.6

14.7

14.5

13.4

14.0

. 14.0

12.9

13.8

13.5

13.5

13.5

12.9

12.9

12.5

12.0

12.3

12.7

Aug.

11.9

11.7

11.8

16.2

15.1

15.1

14.7

13.2

13.8

13.8

12.8

12.8

12.8

13.0

11.8

12.3

12.6

11.9

12.5 10.4

12.2

12.2

15.7

13.1

12.9

12.3

12.3

12.0

11.9

11.8

11.8

11.7

10.6

11.0

11.6

11.2

10.4

10.4

10.6

10.3

10.4

9.9

9.6

9.6

Mean

16.0

'-

23 0

10.0

16.2

Sept.

10.0

10.0

7.9

9.5

10.3

9.2

7.7

7.6

9.2

9.2

10.2

8.2

9.4

9.8

10.2

10.4

11.2

12.2

11.3

11.3

11.3

' 8.4

12.0

11.4

11.2

11.0

10.6

10.0

9.8

9.6

Runoff in 

acre-feet

954

983

-

595

11,730
62 SANTA ANA RIVER BASIN

Mill Creek near Mentone, Calif.

Location.- Water-stage recorder and concrete broad-crested weir, lat. 34°05'10", long. 

nnjS'55", in SEijNWij sec. 17, T. 1 S., R. 2 W., at Bear Valley pipe-line crossing, 

0.2 mile upstream from Santa Ana River, 1.5 miles northeast of Mentone, and 5 miles 

southeast of East Highlands. Altitude of gage, about 1,780 feet.

Records available.- February 1939 to September 1948.

Extremes.- Maximum discharge during year, 3.0 second-feet Dec. 5 (gage height, 2.71 feet); 

no flow during several months.

1939-48: Maximum discharge, 1,500 second-feet Dec. 23, 1945 (gage height, 6.5 

feet), by slope-area method; no flow during several periods each year.

Remarks.- Records poor. Mill Creek power canals 1, 2, and 3 divert above station.

Discharge, in second-feet, water year October 1947 to September!948

Day

1

2

3

4

5

6

7

8

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

.3

.2

.2

.2

.2

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan. Feb.

0

0

0

0

.2

.2

.2

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

_

-

Month

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

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

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

Calendar year 1947 ......................

Januarv ... ... . . . .-..._

Febr 

Marc

uary. ..................................

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

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

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

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

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

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

Water year 1947 -48 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1

Secondfoot-days

0

0

1.4

5.68

0

1.0 

.2

.2

0

0

0

0

0

2.8

May

Maximum

0

0

.3

1.2

0

.2 

.1

.1

0

0

0

0

0

.3

June

Minimum

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

July Aug.

Mean

0

0

.05

.016

0

.03 

.01

.01

0

0

0

0

0

.01

Sept.

Runoff in 

acre- feet

0

0

2.8

11

0

2.C

.4

.4

0

0

0

0

0

5.6

Peak discharge (base, 10 sec.-ft.).- No peak above base.
SANTA ANA RIVER BASIN 63

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

Location.- At Southern California Edison Co.'s power plant, lat. 34°05'10", long.

 117 0 02'25", in NE^ sec. 13, T. 1 S., R. 2 W.,-near Redlands-Bear Valley highway, 5 

miles northeast of Craftonville.

Records available.- January 1919 to September 1948. 

Average discharge.- 29 years, 21.7 second-feet.

Extremes.- Maximum daily discharge during year, 26 second-feet Apr. 18; minimum daily,

 7.4 second -feet Sept. 7, 8.

1919-48: Maximum daily discharge, 36 second-feet Nov. 19, 1923, June 7, 1924; no 

flow at times during 1923, 1937-40, 1943, 1945-47.

Remarks.- Discharge computed from record of kilowatt output 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. 1 S., R. 1 W., 3 miles above intake for canal 2. The canals 

serve power plants 2 and 3, which discharge into a common tailrace which discharges 

into power canal 1 just below gaging station on that canal.

Cooperation.- Records furnished ty Southern California Edison Co.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

i>

6 1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13.9

15.8

15. Z

15.4

15.1

15.0

15.0

15. Z

15.4

15.5

15.8

15.8

16.5

16.4

16.0

15.6

15.6

15.4

15.4

15.0

15.1

15.2

15.4

15.4

15. Z

14.6

14.6

14.8

15.0

15.0

15.0

Nov.

15.0

14.8

15.0

13.5

11.9

11.8

11.6

13.6

15.2

15.1

15.0

15.0

15.0

15.4

15.4

15.2

15.0

15.0

15. Z

15.4

15.0

14.6

14.4

14.1

14.6

14.6

14.1

13.7

13.7

13.7

-

Dec.

 14.4

14.4

14.0

17.6

15.8

14.6

17.6

16. .4

15.4

15.4

15.6

15.6

15.3

15.8

16.0

15.8

15.8

15.7

15.8

16.0

15.8

15.6

16.0

16.0

15.6

16.4

16.8

16.6

16.8

14.8

14.6

Jan.

15.3

15.8

15.9

15.0

15.6

15.4

15.4

15.8

15.8

15.8

15.9

15.8

15.8

15.4

15.5

15.4

15. Z

15.0

15.1

15.0

15.0

14.6

14.8

14.4

14.4

15.0

14.7

13.5

13.8

14.0

14. Z

Feb.

14.4

14.4

13.8

14.4

13.8

9.3

11.9

13.4

15.0

16.8

15.6

15.0

14.8

16.0

16.6

16.5

16.1

17. Z

18.1

17.8

17.4

17.5

17.5

18.1

16.6

16.4

16.0

16.4

16. Z

-

Month

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

Calendar year 1947 ......................

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

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

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

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

Water year 1947-48 ......................

Mar.

16.0

16.0

15.5

15.6

15.6

15.4

15.4

15.4

15.4

15.4

15.4

15.4

15.4

16.4

16.0

16.6

16.8

16.8

16.4

16.0

16.0

16.5

17.9

18.1

18.5

19.1

19.9

19.3

19.1

18.3

18.5

Apr.

18.9

19.8

ZZ

22

Zl

ZO

19.9

19.1

19.3

Z2

23

Zl

Zl

zo

Zl

Z3

Z5

Z6

Z3

Z4

Z3

Z3

Z3

Zl

ZZ

ZZ

23

ZZ

Z6

Z4

-

Secondfoot-days

498.0

7,593.9

Z93. y

5,765.9

May

24

Z3

Z3

Z3

Z4

Z5

Z5

Z4

Z4

Z3

23

24

Z3

Z4

24

Z4

ZZ

Z3

ZZ

ZZ

ZZ

Zl

ZZ

21

Zl

Zl

18.4

21

21

19.9

19.9

Maximum

17.6

30

19 9

P6

1Z.O

Z6

June

19.6

20

19.4

19.5

18.9

19.2

18.6

18.6

18.6

18.0

18.2

18.2

17.3

17.3

16.9

17.1

17.1

16.5

17.1

16.6

15.8

16.4

16.0

15.9

16.1

15.6

15.6

15.5

14.7

14.6

Minimum

13.9

14.0

11.6

9

-z

7.4

7.4

July

14.4

14.3

14.4

14.2

13.1

13.7

13.7

12.6

13.5

13.2

13.2

13.2

12.6

12.6

12.2

11.7

12.0

12.4

12.2

11.9

11.9

15.4

12.8

12.6

12.0

12.0

11.7

11.6

11.5

11.5

11.5

Aug.

11.7

11.6

11.6

16.0

14.9

14.9

14.5

13.0

13.6

13.6

12.6

12.6

12.6

12.8

11.5

12.0

12.4

11.7

10.2

10.4

10.8

11.3

11.0

10.2

10.2

10.4

10.2

10.2

9.7

9.4

9.4

Mean

15.3

15.7

20.8

9.80

15.8

Sept.

9.8

9.8

7.7

9.3

10.1

8.9

7.4

7.4

9.0

9.0

10.0

8.0

9.2

9.6

10.0

10.2

11.0

12.0

11.1

11.1

11.1 8'.2

11.8

11.2

11.0

10.8

10.4

9.8

9.6

9.4

-

Runoff in 

acre-feet

941

968

15,060

899

583

11,440
SANTA ANA RIVER BASIN

Mill Creek power canal 1 near Craftonvllle, Calif.

Location.- Water-stage recorder and weir control, lat. 34°05'10", long. 117 0 02'25", in 

NKir sec. 13, T. 1 S., R. 2 W., 0.2 mile downstream from point of diversion from Mill 

Creek andi5 miles northeast of Craftonville.

Records available.- January 1919 to September 1948.

Average discharge.- 29 years, 2.87 second-feet.

Extremes.- Maximum daily discharge during year, 1.4 second-feet Apr. 4; no flow on many

1919-48: Maximum daily discharge, 29 second-feet Apr. 21, 22, 1932; no flow for 

several days of most years.

Remarks. - Records good. Discharge determined "by weir formula. This canal diverts from 

 Mill Creek in NE-j sec. 13, T. 1 S., R. 2 W. , above station on Mill Creek near Mentone.

The combined discharge of power canals 2 and 3 enters (jower canal 1 below station.

After passing through Mill Creek power-house 1, entire flow is used for irrigation and

domestic supply.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

.1.1.1

Nov.

0.1

.1

0

0

.1

.1

0

.1

.1

.1

.1

.1.1

.1

.1

.1

.1.1

.1

.1

.1

0

0

0

0

0

0

0

0

-

Dec.

0.1

.1.1

.3

0

.2

.1

.1.1

.1

.1

.1.1

.2

.2

.1

.1

.1

.2

.1

.2

.2

.1

.2

.2

.2

.2

.2

.2

.1

Jan.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.3

.3

.3

.4

.4

Feb.

0.4

.3

.4

.4

.6

0

.5

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.2

.2

.2

.2

.2

_

-

Month

Octo 

Nove 

Dece

ber. ...................................

mber. ..................................

mber. ...................................

Calendar year 1947 .................. ...

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

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

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

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

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

Water year 1947-48 ......................

Mar.

0.2

.2

.2

.1

.1

.1

.1

.2

.2

.2

.3

.5

1.2

.6

.9

.6

.8

.8

.5

.4

.3

.2

.6

.6

.5

.5

.5

.6

.5

Apr.

0.5

.5

.9

1.4

1.3

1.0

.6

.6

.6

.7

.6

.6

.5

.5

.5

.5

.5

.4

.5

.5

.6

.6

.5

.4

.5

.5

.7

.7

.9

-

Secondfoot days

3.6 

1.9 

4 5

469.5

3 2

3.2

91.3

May

0.8

.7

.6

.6

.6

.5

.6

.6

.6

.6

.5

.5

.5

.5

.4

.4

.5

.6

.6

.6

.5

.4

.4

.5

.5

.5

.4

.4

.4

.4

Maximum

o.z 

.1

5.2

1.4

.2

1.4

June

0.5

.6

.5

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

-

Minimum

0 

0

0

.4

.1

.1

0

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

.1

Aug.

0.1

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

0

.1

.1

.1

.1

Mean

0.12 

.06

1.29

.15

.41

.65

.53

.20

.11

.25

Sept.

0.1.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Runoff in 

acre-feet

7.1 

3.8 

8.9

931

9.5

25

38

12

6.3

180
SANTA ANA RIVER BASIN 65

Plunge Creek near East Highlands, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°07'10", long. 117 0 08'30", 

in WE^NE^- sec. 1, T. IS., R. 3 W. , at mouth of canyon at crossing of North Pork 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 1948.

Average discharge.- 29 years, 6.57 second-feet.

Extremes.- Maximum discharge during year, 195 second-feet Apr. 3 (gage height, 1.83 feet), 

cy slope-area method; no flow during several months.

1919-48: Maximum discharge, 5,340 second-feet Mar. 2, 1938, by slope-area method; 

no flow for long periods each year.

Remarks.- Records good except those for Apr. 3, 4, which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 1948

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. Nov. Dec.

0

0

0

.6

.02

0

O

o

0

0

0

0

0

Jan.

,e0.02

Feb.

.

\ eo.01

1

6.1

8.3

3.0 

1.9

1.4

1.1

.9

.8

.8

.8

.8

.7

.9

1.0

1.7

1.6

.9

.9

.6

.4

.3

.

\ e.02

1

_

-

Month

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

Calendar year 1947 .......................

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

May

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

Water year 1947-48 ......................

Mar.

, eO.Ol

2.0

11.4

4.8

5.2

3.6

4.3

8.4

3.5

3.8

3.4

6.2

9.3

4.4

3.6 

3.6

3.6

1.9

.4

Apr.

0.5

46

60

18

14

11 

9.6

8.6

9.1

9.1

7.4

6.1

5.5

5.8

6.1

5.0

4.8

3.1

2.4

2.4

1.9

1.2

1.2

.5

I e.02

5.1

.7

-

Secondfoot-days

0

.81

231.82

.62

35.02

249.44

0

0

0

0

369.78

May

0.2

e.Ol

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

Maximum

o

.6

9.0

8.3

11.4

60

.2

0

0

0

60

June

Minimum

0

0

0

_

_

_

0

0

0

0

0

0

July Aug.

Mean

0

.026

.635

.020

1.21

2.69

0

0

0

1.01

Sept.

Runoff in 

acre-feet

0

0

1.6

461

1.2

69

166

495

.7

0

0

0

734

Peak discharge (base, 130 see.-ft.).- Apr. 3 (11 p.m.) 195 

e Dally discharge less than 0.1 second-foot.
66 SANTA ANA RIVER BASIN

San Timoteo Creek near Redlands, Calif.

Location.- Vhter-stage recorder and concrete control, lat. 34°01'55", long. 117°12'30", in 

NW-plw£ sec. 4, T. 2 S., R. 3W.,2 miles southwest of Redlands. Altitude of gage, 

about 1,260 feet.

Drainage area.- 123 square miles.

Records available.- October 1926 to September 1948.

Average discharge.- 22 years, 1.85 second-feet.

Extremes.- Maximum discharge during year, 450 second-feet Feb. 5 (gage height, 2.60 feet); 

no now during most of year.

1926-48: Maximum discharge, 7,460 second-feet Mar. 2, 1938, by slope^area method; 

no flow during several months each year.

Remarks.- Records fair. Entire low flow normally diverted above station for irrigation, 

occasionally slight amounts of unmeasured irrigation waste water flow past this station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

0

0

0

0

f27

a4.0

a3.0

fl.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.

0

0

0

0

0

Jan. Feb.

0

0

0

0

31

f9.1

0

0

Q

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Month

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

Calendar year 1947 ............ .........

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

Hay

July

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

Water year 1947-48 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

.1

.6.1

0

0

0

0

cr

0

0

0

.8

0

0

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0o0

0

0

0

o

0

0

0

0

fl.O

0-

Secondfoot-days

35.5

 37.5

0

78.3

May

0

0

0

0

.1

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

27

27

0

31

June

Minimum

0

0

0

0

July Aug.

Mean

1.15

.10

0

.21

Sept.

Runoff in 

ao re-feet

70

74

0

155

Peak discharge (base, 50 sec.-ft.).- Dec. 5 (6:45 a.m.) 158 sec.-ft.; Feb. 5 (10:45 p.m.) 450 sec.-

a No gage-height record; discharge computed on basis of normal recession, 

f Computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN 67

Warm Creek near Colton, Calif.

Location.- Water-stage recorder, lat. 34°04'00", long. 117°18'30", in San Bornardino 

Grant, at Colton Avenue Bridge, 0.4 mile upstream from mouth and 1.2 miles east of 

Colton, San Bernardinn County. Altitude of gage, about 970 feet.

Records available.- August 1920 to September 1948.

Average discharge.- 28 years, 53.9 second-feet. Average combined discharge of Warm Creek 

and Meeks & JJaley Canal, 28 years, 65.0 second-feet.

Extremes.- Maximum discharge during year, 780 second-feet Dec. 5 (gage height, 4.32 feet); 

minimum daily, 22 second-feet Aug. 22, Sept. 5, 19.

1920-48: Maximum discharge, 27,500 second-feet Mar. 2, 1938 (gage height, 11.2 

feet), by slope-area method; minimum, 2.0 second-feet Sept. 8, 1936. Maximum discharge 

including west channel of Lytle Cresk, 35,000 second-feet Mar. 2, 1938.

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

see page 79 for records of Meeks & Daley Canal near Colton, which diverts above 

station, and page 68 for records of combined flow of canal and Warm Creek. City of 

San Bernardino sewage disposal plant discharged 6,990 acre-feet into Warm Creek above 

station during year. In seasons of high water table, there is flow in a depression 

paralleling Warm Creek about 500 feet east of station; based on 17 discharge measurements (see p.439), the amount of runoff during year is estimated to have been 110 

acre-feet. During greater part of year, low stage flow of Warm Creek passing this 

station is diverted into Riverside Water Co.'s canal (capacity, 100 second-feet) 0.3 

mile downstream. Lytle Creek flood channel (capacity, 30,000 second-feet), completed 

in fall of 1945, enters Warm Creek above this station and includes any flow which 

formerly might have been recorded at station on Lytle Creek (west channel).

Revisions (water years).- W 1061: 1944, 1945.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26

27 

28 

29 

30 

31

Oct.

34

36 

29 

27 

24

24 

25 

26 

28 

30

31 

28 

32 

33 

32

32 

32 

31 

30 

28

27 

27 

27 

27 

26

26 

26 

27 

28 

30 

31

Nov.

32 

34 

39 

36 

37

36 

36 

36 

37 

37

a39 

a40 

f41 

41 

40

39 

41 

41

45 

46

a46 

a45 

a44

a43 

a42

a41 

a 40

f40 

37 

37

Dec.

85 

49 

34 

39

140

59 

59 

74 

57 

57

59 

60 

62 

63

66

63 

70 

70 

64 

66

66 

69 

63 

63 

64

66 

64 

60 

57 

55 

55

Jan.

55 

57 

56 

52 

49

46 

46 

45 

45 

45

46 

45 

48 

50 

44

37 

49 

49 

49 

46

48 

48 

49 

48 

50

50 

49 

49 

50 

50 

49

Feb.

46

50 

48 

46 

f200

f!20 

70 

67 

70 

67

67 

67 

67 

69 

67

67 

67 

64 

66 

67

66 

64 

62 

63 

64

64 

63 

68 

66

unr,th SeoondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Da

mber. ........................

mber .........................

lendar year 1947 

ary ....

894 

1,186 

l,97fi

18,322

uary

h.. ........................ .

st ...........................

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

1.49E 

2,032 

2,041 

1,992 

1,366 

1,224 

943 

74£ 

746

ter year 1947-48 ............ 16,652

Peak discharge (base, 290 sec. -ft.).- Dec.

ft.; Feb. 5 (10:45 a.m.) 460 sec. -ft.; Mar. 

550 sec. -ft. 

t Discharge from sewage plant of city of S 

ceding columns. Records furnished by that c 

a No gage-height record; discharge compute 

trol District's station at Mill Street, weatl 

f Computed on basis of partly estimated ga

Mar.

67 

61 

50 

45 

44

40 

37 

49 

55 

55

50 

49 

f70 

f90 

f91

62 

73 

81 

81 

94

80 

77 

67 

fllO 

86

71 

67 

62 

63 

62 

52

Apr.

44

52 

f220 

f!25 

f90

f89 

79 

70 

67 

69

60 

53 

54 

62 

59

55 

54 

51 

52 

52

52 

52 

52 

50 

47

48 

46 

48 

82 

58

Maximum

36 

46

140

140

57 

200 

110 

220 

51 

68 

34 

27 

29

220

May

50 

50 

50 

48 

48

48 

48 

48 

48 

49

51 

50 

48 

49 

45

43 

44 

43 

44 

43

42 

39 

38 

39 

39

38 

38 

37 

35 

35 

39

June

63 

68 

53 

50 

55

46 

45 

43 

43 

41

40 

38 

38 

38 

38

37 

37

36 

34 

34

35 

35 

35 

35 

35

34 

34 

34 

35 

35

Minimum Mean

24 28.8 

32 39.6 

34 63.8

24 50.2

37 48.4 

46 70.1 

37 65.8 

44 66.4 

35 44.1 

34 40.8 

27 30.4 

22 24.2 

22 24.9

22 45.5

July

34 

32 

31 

30 

30

31 

31 

31

30 

30

29 

31 

31 

30 

30

29 

30 

30 

32 

32

31 

31 

32 

31 

30

31 

30 

29 

27 

f28 

a27

Aug.

a27 

326 

a26 

a 25 

a25

f24 

24 

f24 

a25 

a26

f26 

25 

f24 

a24 

a24

a24 

a23 

a23 

a23 

f23

23 

22 

f23 

a23 

a24

324 

f24 

24 

23 

24 

24

Runoff In 

acre-feet

1,770 

2,360 

3,920

36,340

2,970 

4,030 

4,050 

3,950 

2,710 

2,430 

1,870 

1,490 

1,480

33,030

Sept.

24 

23 

24 

23 

22

23 

25 

25 

25 

25

24 

24 

24 

23 

24

23 

23 

23 

22 

26

27 

27 

27 

27 

26

26 

27 

28 

29 

29

Inflow In 

acre-feett

591 

551 

589

7,070

600 

577 

616 

576 

579 

560 

579 

584 

584

6,990

1 (2:30 p.m.) 380 sec . -f t . ; Dec. 5 (2:45 a.m.) 780 sec. 

3 4 (about 4 p.m.) 490 sec. -ft.; Apr. 3 (about 8 p.m.)

an Bernardino; Included In runoff figures given In preUy. 

I on basis of records of San Bernardino County Flood Con 

ler records, and Interpolation, 

ge-helght record.
SANTA ANA RIVER BASIN

Combined dally discharge, in econd-feet, of Warm Creek and Meeks 8c Dal< 

er year October 1947 to September 1948

 y Canal near Colton, Calif

Day

I

?

fc

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

54

56

49

46

43

44

45

46

48

50

51

48

51

52

51

51

51

50

49

47

46

46

46

46

45

45

46

46

48

50

50

Nov.

52

54

59

55

56

55

55

56

57

56

58

59

60

60

59

59

61

61

65

66

65

64

63

62

61

60

59

59

56

56

-

Dec.

104

67

53

58

144

61

61

76

57

57

59

60

62

63

66

63

70

70

64

66

66

69

63

63

64

67

67

64

61

59

59

Jan.

59

62

61

57

54

51

51

51

51

49

51

50

RT

55

56

57

69

68

68

65

67

67

68

67

70

69

68

69

70

70

69

Feb.

66

70

67

65

211

125

73

70

73

70

70

70

70

72

70

70

70

67

69

70

69

67

65

64

64

64

65

72

69

-

-

Month

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

Calendar year 1947 ......................

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

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

Water year 1947-48 ......................

Mar.

72

73

69

64

62

58

56

69

75

74

68

68

89

107

103

80

85

89

89

99

85

80

76

125

89

74

71

66

68

67

65

Apr.

64

71

233

128

93

92

82

72

69

70

70

70

71

79

76

72

71

68

68

69

69

70

70

67

64

66

64

67

101

76

-

Seoondfoot-days

2,082

23,839

1,334

22,197

May

67

69

69

67

67

66

67

66

67

67

69

68

66

68

62

62

64

63

63

62

61

58

57

58

59

58

58

56

54

54

58

Maximum

144

144

48

233

June

82

86

70

68

74

65

64

62

62

59

58

56

57

57

57

56

56

55

54

54

54

54

54

54

54

53

53

53

54

54

-

Minimum

52

53

43

49

42

42

July

53

51

50

49

49

50

50

50

49

49

48

50

50

48

49

48

49

49

51

51

50

50

51

50

49

50

49

48

46

47

46

Aug.

46

46

46

45

44

43

43

43

45

45

45

44

43

43

43

43

42

42

42

42

43

42

42

42

43

44

44

44

43

44

43

Mean

67.2

65.3

43 5

44.5

60.6

Sept.

43

42

44

43

42

43

45

45

44

44

43

43

43

42

43

42

42

42

42

47

4,8

47

46

47

46

46

47

47

48

48

-

Runoff in 

acre feet

3,510

4,130

47,290

4,760

2,650

44,040
SANTA ANA RIVER BASIN 69

Strawberry Creek near Arrowhead Springs, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°10'45", long. 117°15'55", 

in SK$ sec. 11, T. IN., R. 4 W., upstream from Del Rosa Water Co.'s lower diversion 

dam, 0.5 mile south of Arrowhead springs. Altitude of gage, about 1,650 feet.

Drainage area.- 8.6 square miles.

Records available.- December 1919 to September 1948.

Average discharge.- 28 years (1920-48), 4.99 second-feet.

Extremes.- Maximum discharge during year, 174 second-feet Apr. 3 (gage height, 3.46 feet); 

minimum daily, 0.3 second-foot on several days in September.

1919-48: Maximum discharge, 3,360 second-feet Mar. 2, 1938, by rainfall-runoff 

studies; practically no flow at times during 1929, 1931-35.

Remarks.- Records good. One small diversion above station for domestic supply.

Discharge, in second-feet, water year October 1947 .to Septemberl948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Ib

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Oct.

0.8

.8

.8

.7

.8

.8

.8

.8

1.0

1.1

1.3

1.4

1.4

1.4

1.2

1.2

1.2

1.1

1.1

1.0

1.1

1.0

1.1

1.0

1.0

1.0

1.1

1.0

1.2

1.0

Nov.

1.2

1.4

.2

.2

.2

.0

.2

.3 '.4

.1

1.1

1.1

1.1

1.2

1.3

.6

.5

.4

.5

.4

.5

.0

.8

.6

.4

.4

.3

.3

1.4

-

Dec.

1.8

1.9

1.6

2.0

5.6

3.4

2.8

2.8

2.4

2.3

2.1

2.0

2.1

2.0

1.8

1.8

1.9

1.9

1.8

1.9

1.9

1.8

1.7

1.4

1.6

1.3

1.5

1.6

1.6

1.6

Jan.

1.7

1.7

1.9

1.8

1.5

1.6

1.5

1.6

1.4

1.4

1.3

1.2

1.2

1.4

1.4

1.4

1.4

1.4

dl.4

dl.4

dl.4

dl.3

dl.3

dl.3

dl.3

dl.2

dl.2

dl.2

1.2

1.2

Feb.

1.1

1.9

1.7

1.6

7.0

4.6

2.9

2.6

2.5

2.5

2.3

2.1

1.8

2.0

2.1

2.2

1.9

2.0

2.1

1.8

1.9

2.0

1.8

1.7

1.8

1.9

2.0

2.5

2.3

-

Month

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

Calendar year 1947 ......................

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

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

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

Water year 1947 -48 ......................

Mar.

2.3

2.1

1.9

1.8

2.0

1.9

2.0

1.8

1.8

1.9

1.8

1.6

2.7

7.5

7.1

4.0

4.2

3.2

4.4

5.9

4.0

3.4

2.5

3.6

4.0

3.5

3.0

2.6

2.5

2.4

Apr.

2.2

2.2

34

18

9.1

8.0

6.0

4.7

4.0

3.8

4.2

3.8

3.2

2.8

2.6

2.4

2.2

2.2

2.2

2.2

2.3

2.3

2.2

2.1

2.2

2.3

2.3

3.2

8.8

-

Secondfoot-days

32 5

63.3

.850.4

43 4

73 7

15.4

665.4

May

4.2

3.9

3.2

3.1

3.0

2.8

2.8

3.1

3.0

2.8

2.4

2.3

2.2

2.0

1.7

1.9

1.7

1.8

2.4

2.3

1.8

1.8

1.8

1.8

1.7

2.0

2.2

2.0

1.7

2.3

Maximum

5.6

10

.7

34

June

2.9

3.8

2.5

2.4

2.2

2.0

1.7

1.6

1.7

1.7

1.4

1.6

1.5

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.2

1.2

1.0

1.0

1.0

1.2

1.0

.8

Minimum

1.3

.4

.3

.3

July

0.8

.8

.8

.9

.8

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.4

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

Aug.

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.5

.5

.5

.5

.6

.6

.5

.4

Mean

2.04

2.33

1 54

62

.51

1.82

Sept.

0.4

.5

.6

.6

.6

.5

.6

.6

.5

.4

.3

.3

.3

.4

.4

.4

.4

.4

.4

.6

.6

.6

.6

.6

.7

.7

.6

.6

.6

Runoff in 

acre feet

126

1,690

132

31

1,320

Peak discharge (base, 4o see.-ft.).- Apr. 3 (7:15 p.m.) 174 sec.-ft.; Apr. 29 (12:50 a.m.) 48 sec. 

ft.

d Doubtful gage-height record; discharge interpolated.

889419 0-50-6
SANTA ANA RIVER BASIN

Waterman Canyon Creek near Arrowhead Springs, Calif.

Drainage area.- 4.55 square miles.

Records available.- November 1911 to October 1914, December 191-' tc September 194S.

Average discharge.- 30 years (1912-14, 1920-46), 3.00 second-feet.

Extremes.- Maximum discharge during year, 126 seoona-feet Apr. 3 (;ape height, 3.18 feet);

 no flow Sept. 9-17.

1920-48: Maximum discharge, 2,350 second-feet Mar. -2, 1939, baser! on rainfallrunoff studies; no flow at times during summers of 1924-26, 1928, 1929, 1931, 1934, 

1948.

One small diversion

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.5 

.4 

.4 

.4

.4

.5 

.6

.6 

.7

1.0

.9 

.8

1.0

.7 

.6

.7

.7 

.7 

.7 

.6 

.5

.6 

.6 

.5 

.7 

.7 

.5

Nov.

0.5 

.6 

.6 

.6 

.6

.6 

.6 

.7

.7

.6

.6

.7

.7

.7 

.7

.7 

1.3 

1.2 

1.1 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

Dec.

.4

.2 

.0 

.4 

.6

.7 

.5 

.5 

.3

.1

.1 

.1

.O 

.0 

.9 

.9

.9 

.9

.9 

.9 

.9

.8 

.7 

.8 

.8 

.8 

.8

Jan.

0.8 

.8 

.9 

.9 

.9

1.0 

1.0 

.9 

1.0 

.9

.9

-] Q

1.0 

.9

.9

1.0 

.9 

1.0

1.0 

1.0 

1.0 

.9 

1.0

1.0 

1.0 

1.0 

1.0 

1.0 

1.0

Feb.

1.0 

1.2 

1.0 

1.0 

4.4

2.6 

1.7

1.6 

1.5 

1.4

1.2

1.2 

1.1

1.2 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1

1.0

1.1 

1.1 

1.4 

1.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

her. ...................................

mber. ..................................

lendar year 1947 

ary

h. .....................................

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

ter year 1947-48 ......................

Peak discharge (base, 35 se>:.-ft. ).- Apr. 3

Mar.

l.l 

l.l

1.0 

1.0 

1.0

1.0 

1.0 

1.0

1.0

4 .6 

2.8

2.2 

1.7 

2.4 

2.4

1.9

1.7 

1.6 

3.2 

2.3

1.8 

1.6 

1.6 

1.6 

1.6 

1.5

Apr.

1.4 

1.6

8.4 

5.6

5.3

f4.5 

d4.2 

d3.9 

dl.fi

d3.1

d2.7 

d2.5

d2.2 

a2.1 

d2.0

dl.9 

dl.9 

dl.8 

dl.8 

dl.7

dl.7 

dl.7 

3.7 

4.2

2.7

Second 

foot-days

20.1 

23.1 

35.4

576.1

29.4 

39.3 

52.2 

104.1

42.2 

26.9 

7.8 

2.91 

1.66

385.07

(6:15 p.m.)

May

2.3 

2.3 

2.1 

1.9 

1.8

1.7

1.8 

1.8 

1.7

1.4

1.2 

1.0

.9

1.0

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.2 

1.1 

1.0 

1.0 

1.3

Maximum

1.0 

1.3 

3.6

6.8

1.0 

4.4 

4.8 

17 

2.3 

2.3 

.4 

.2 

.2

17

June

1.9 

2.3 

1.6 

1.5 

l.Z

1.0 

1.0 

.9 

.9 

.&

.9

.3

.7 

.7

.7 

'.7 .7 

.7

.8 

.9

.8 

.7

.7

.6 

.4 

.4 

.4

Minimum

0.4 

.5

.7

.1

.8 

1.0 

1.0 

1.4 

.9 

.4 

.1 

.01 

0

C

July

0.4 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3

.3

. 5 

.3

.2 

.2 

.3 

.3

.2 

.2 

.3 

.2 

.2

.1 

.1 

.1 

.1 

.1 

.1

Aug.

0.1

.1

.2 

.1 

.1

.1 

.1

 1

.1

.1

.1

.1 

.1

.1

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

.04 

.04 

.02 

.01

Mean

0.65 

.77 

1.14

1.58

.95

1.36 

1.68 

3.47 

1.36 

.90 

.25 

.094 

.055

1.05

Sept.

, 0.01

0

0 

0

0

.03 

.03

.1 

.1 

.1 

.2 

.2

.2 

.1 

.2 

.1 

.2

Runoff in 

acre-feet

40 

46 

70

1,140

58 

78 

104 

206 

84 

53 

15 

5.8 

3.3

763

126 sec. -ft.

d Doubtful gage-height record, discharge c'otr.puted 

Arrowhead Springs and City Creek near Highland. 

f Gage height partly estimated.
SANTA ANA RIVER BASIN "1 

City Creek near Highland, Calif.

Location.- Water-stage recorder, lat. 34°08'35", long. 117°11'25", in SW£tJW£ sec. 27, T. 

I N., K. 3 W., 1.5 miles northeast of Highland. Altitude of gage, about 1,550 feet.

Drainage area.- 19.8 square miles.

Records available.- October 1919 to September 1948.

Average discharge.- 29 years, 9.04 second-feet. Average combined discharge of City Creek 

and City Creek Water Co. 's canal, 24 years (1924-48), 10.8 second-feet.

Extremes.- Maximum discharge during year, 250 second-feet Apr. 3 [gage height, 2.93 feet); 

minimum daily, less than 0.05 second-foot during several periods.

1919-48: Maximum discharge, 6,900 second-feet Mar. 2, 1938, by slope-area method; 

no flow for several months ' many years.

l-'i =-48: Minim im combined daily discharge of City Creek and canal, less than 0.05 

second-foot Sept. 1-11, 1948.

Remarks.- Records fair. For records of combined discharge of City Creek and City Creek 

Water Co 's canal, which diverts above station, see following page; for records of 

City Creek Water Co.'s canal, see page 73. During year, a total of 23 acre-feet of 

water was pumped from creek and canal above gaging stations for use in highway 

construction.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Oct.

, eo.02

.1

.1

.1

.2

.2

. e.04

Nov.

0.

> e.03

.1

»

> e.02

1

-

Dec.

0.1

.1

.1

3.6 

16

7.7

5.4

5.1

4:8

2.0

.9

.7

.5

.5

.5

.5

.5

.5

.5

.6

.8

.8

.7

.7

.7

.8

.5

.2 

.2

.2

.2

Jan.

0.2

. 3

. 3

.2 

.2

.2

.2

.1

.2

.3

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1 

.1

.1

.1

Feb.

0.2

.8

.1

.1 

17

15

8.0

6.5

5.4

3.9

2.2

1.8

1.7

1.7

1.8

2.0

2.8

2.8

2.2

1.7

1.7

1.7

1.5

.8

.5

.4

.5

.5 

.7

_

-

Month

October. ..................... ...... . November. ........................ .........

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

Calendar year 1947 .....................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

O.4

. 3

.2

.1 

.1

.1

.1

.1

.2

.2

.2

.2

.3

8.4

20

10

9.8

8.0

11

17

10

8.0

7.6

16

22

14

10

8.0 

6.9

5.1

4.5

Apr.

4.3

4.0

7.5

6.0 

27

23

18

14

13

12

12

12

10

9.3

8.8

8.4

7.6

7.6

7.2

4.9

4.0

2.3

1.2

1.0

.9

.8

.6

.7 

5.6

1.2

-

Secondfoot-days

2 . 26

1.91

56.4

679.49

5.2

86.0

198.8

234.9

9.4

2.05

. 62

.62

.30

598.46

May

0.8

.7

.6

.5

.3

.1

.3

.5

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.3

.3

.3

.2

.2

.2

.2

.1

.1 

.1

.1

.1

Maximum

0.2

.1

16

25

.3

17

22

27

.8

.2

27

June

0.1

.2

.1

.1 

.1

. e.03

-

Minimum

0.1

.1

.1

.1

.6

.1

-

July

. e0.02

Aug.

. eO.02

Mean

O.O73

.064

1.82

1.86

.17

2.97

6.41

7 . 83

.30

. 068

.020

.020

.010

1.64

Sept.

. eO.Ol

-

Runoff in 

acre-feet

4 5

3!s

112

1,350

10

17-1

394

466

19

4.1

1.2

1.2

. 6

1,190

Peak discharge (base, 150 sea.-ft.).- Apr. 3 

e Dally discharge less than 0.1 second-foot.

3:30 p. 250 sec.-ft.
72 SANTA ANA RIVER BASIN

Combined discharge, In second-feet, of City Creek and canal near Highland, 

water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.4

.5

.5

.4

.3

.4

.6

.9

1.2

1.3

1.7

1.8

2.0

2.1

2.0

2.0

2.0

1.9

1.4

1.2

1.6

1.6

1.5

1.3

1.2

1.2

1.3

1.3

1.6

2.0

1.8

Nov.

1.7

1.9

1.7

1.7

1.8

1.5

1.6

1.6

1.7

1.7

1.7

1.7

1.7

1.9

2.1

1.9

2.0

2.7

2.2

2.1

2.2

2.3

2.2

2.2

2.0

2.0

1.9

1.9

1.9

2.0

-

Dec.

2.6

3.3

2.9

5.8

16

7.8

5.5

5.2

4.9

3.5

3.2

3.0

2.9

2.9

3.0

3.0

3.1

3.2

3.2

3.2

3.4

3.3

3.3

3.3

3.1

3.3

3.4

3.3

3.2

3.1

3.1

Jan.

3.1

3.6

3.3

3.1

3.0

2.8

2.7

2.5

2.7

2.7

2.8

2.5

2.4

2.4

2.4

2.3

2.5

2.5

2.5

2.3

2.2

2.2

2.2

2.3

2.6

2.9

2.7

2.5

2.4

2.3

2.4

Feb.

2.6

3.8

3.1

2.5

17

15

8.0

6.5

6.4

6.9

4.7

3.9

3.8

3.8

4.1

4.4

5.4

5.7

5.4

4.8

4.7

4.8

4.6

4.3

4.1

3.8

3.8

4.2

4.4

-

Month

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

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

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

Calendar year 1947 ........... ..... ...

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

3.6

3.4

3.2

3.0

2.9

3.0

3.0

3.2

3.6

3.5

3.4

3.4

4.0

13

20

12

14

12

16

22

15

12

11

18

22

14

11

10

10

9.1

8.5

Apr.

8.2

7.9

10

6.0

27

23

18

14

13

12

12

12

10

9.3

8.8

8.4

7.6

7.6

7.2

7.0

7.3

7.0

6.5

6.2

5.7

5.8

5.5

5.6

12

6.8

-

Second 

foot-days

41.0

57.5

124.0

1,668.30

80.8

156.5

292.8

297.4

144.1

90.1

15.2

3.3

3.41

1,306.71

May

6.2

6.1

5.6

5.3

5.0

5.0

4.7

4.5

5.3

5.3

5.2

5.0

4.6

4.4

4.2

4.1

4.0

4.3

5.1

5.0

4.7

4.1

3.8

3.8

4.0

3.9

4.1

4.2

4.0

3.9

4.7

Maximum

2.1

2.7

16

28

3.6

17

22

27

6.2

6.8

1.0

.2

.2

27

June

5.3

6.8

5.0

4.4

4.1

3.9

3.7

3.5

3.4

3.3

3.1

3.1

3.0

2.9

2.7

2.7

2.5

2.5

2.5

2.4

2.4

2.5

2.4

1.9

1.9

1.9

1.9

1.8

1.4

1.2

-

Minimum

0.3

1.5

2.6

.1

2.2

2.5

2.9

5.5

3.8

1.2

.3

.1

-

July

1.0

1.0

1.0

.9

.8

.8

.7

.7

.6

.5

.5

.5

.5

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.3

.3

.3

.3

.3

.3

Aug.

0.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Mean

1.32

1.92

4.00

4.57

2.61

5.40

9.45

9.91

4.65

3.00

.49

.13

.114

3.57

Sept.

, 0.04

.01

.05

.05

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

-

Runoff in 

acre-feet

81

114

246

3,310

160

310

581

590

286

179

30

7.7

6.8

2,590
SANTA ANA RIVER BASIN 73

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

Location.- Water-stage recorder, lat. 34°08'35", long. 117°11'25", in NW£ sec. 27, T. 1 

 fl., H. 3 W., 1.5 miles northeast of Highland.

Records available.- May 1924 to September 1948. 

Average discharge.- 24 years, 2-.35 second-feet.

Extremes.- Maximum daily discharge during year, 6.6 second-feet June 2; no flod on several 

days.

1924-48; Maximum discharge, 10 second-feet May 30, 1927; no flow at times.

Remarks.- Records good Feb. 13 to Sept. 30, poor Oct. 1 to Feb. 12. This canal diverts 

from City Creek, 0.2 mile above gage on that stream. (See preceding page for records 

of combined discharge of City Creek and canal.)

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.4

.5

.5

.4

.3

.4

.6

.8

1.1

1.2

1.5

1.6

2.0

2.1

2..0

2.0

2.0

1.9

1.4

1.2

1.5

1.5

1.4

1.2

1.1

1.1

1.2

1.2

1.5

1.9

1.7

Nov.

1.6

1.8

1.6

1.6

1.7

1.5

1.6

1.6

1.7

1.7

1.7

1.7

1.7

1.9

2.1

1.9

1.9

2.6

2.1

2.0

2.1

2.2

f2.1

f2.1

1.9

1.9

1.9

1.9

1.9

2.0

-

Dec.

2.5

3.2

2.8

2.2

.3

f.l

.1

f.l

a.l

al.5

a2.3

a2.3

a2.4

a2.4

a2.5

a2.5

a2.6

f2.7

2.7

2.6

Z.6

2.5

2.6

2.6

2.4

2.5

2.9

3.1

3.0

f2.9

2.9

Jan.

f2.9

f3.3

3.0

2.9

2.8

2.6

2.5

2.4

2.5

2.4

2.5

2.3

2.2

2.2

2.2

2.1

2.4

2.4

2.4

2.2

2.1

2.1

2.1

2.2

2.4

2.7

a2.6

a2.4

f2.3

a2.2

a2.3

Feb.

a2.4

a3.0

a3.0

a2.4

aO

aO

aO

aO

al.O

a3.0

a2.'5

f2.1

2.1

2.1

2.3

2.4

2.6

2.9

3.2

3.1

3.0

3.1

3.1

3.5

3.6

3.4

3.3

3.7

3.7

-

Month

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

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

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

Calendar year 1947 ......................

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

February .......'............................

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

3.2

3.1

3.0

2.9

2.8

2.9

2.9

3.1

3.4

3.3

3.2

3.2

3.7

4.6

fO

1.5

4.5

4.3

4.5

4.8

4.6

4.3

3.5

1.8

0

0

1.2

2.4

3.1

4.0

4.0

Apr.

3.9

3.9

2.8

|

> e.02

I

0

0

0

0

0

0

0

0

0

ff

0

o

0 «

2.1

3.3

4.7

5.3

5.2

4.8

5.0

4.9

4.9

6.0

5.6

Secondfoot-days

56.0

67.9

992.5

75.6

70.5

93.8

62-. 46

134.7

88.5

15.2

3.9

3.28

711.04

May

5.4

5.4

5.0

4.8

4.7

4.9

4.4

4.0

5.0

5.0

4.9

4.7

4.3

4.1

3.9

3.8

3.7

3.9

4.8

4.7

4.4

3.8

3.6

3.6

3.8

3.7

4.0

4.1

3.9

3.8

4.6

Maximum

2.1

2.6

3.2

8.5

3.3

3.7

4.8

6.0

5.4

6.6

1.0

.2

.2

6.6

June

5.2

6.6

4.9

4.3

4.0

3.8

f3.6

a3.4

a3.3

f3.2

3.0

3.0

2.9

2.8

f2.6

f2.7

2.5

2.5

2.5

2.4

2.4

2.5

2.4

1.9

1.9

1.9

1.9

1.8

1.4

1.2

Minimum

0.3

1.5

.1

0

2.1

0

0

0

3.6

1.2

.3

.1

0

0

July

1.0

1.0

fl.O

.9

.8

.8

.7

.7

.6

.5

.5

.5

.5

.4

 .4

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.3

.3

.3

.3

.3

.3

Aug.

0.

Mean

1.26

1.87

2.19

2.72

2.44

2.43

3.03

2.08

4.35

2.95

.49

.13

.109

1.94

Sept.

, e0.03

0

1 e.04

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Runoff in 

acre feet

78

111

135

1,970

150

140

186

124

267

176

30

7.7

6.5

1,410

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

City Creek near Highland.

e Daily discharge less than 0.1 second-foot.

f Discharge computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN

Location.- Water-stage recorder and broad-crested weir, lat. 34°12'05", long. 117°20'10" 

in Muscupiabe Grant, '7.3 miles northwest of San Bernardino, San Bernardino County. 

Altitude of gage, about 1,800 feet.

Records available.- November 1911 to September 1912, October 1913 to September 1914, 

December 1919 to September 1948.

Average discharge.- 29 years (1913-14, 1920-48), 2.03 second-feet.

Extremes.- Maximum discharge during year, 27 second-feet Apr. 3 (gage height, 2.27 feet); 

no flow for several months.

1913-14, 1919-48: Maximum discharge, 3,320 second-feet Mar. 2, 1938, by rainfallrunoff studies; no flow for periods in most years.

Remarks.- Records good. City of San Bernardino diverted 1,210 acre-feet above station 

during year for municipal supply.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

u^o+h SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

her ..........................

mber .........................

lendar year 1947 

ary .....

0 

0 

0

............ 81.il

h. ........ ..................

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

st... .........................

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

0 

0 

.3 

26.21 

.44 

0 

0 

0 

0

ter year 1947-48 .......... . 26. 9E

Peak discharge (base, 25 sec. -ft.).- Apr. 3

t Diversion by city of San Bernar3ino. Rec

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

.1

.2

0 

0 

0 

0 

0 

0

Apr.

0 

0 

10 

6.5 

3.1

2.7 

.9 

.2

.1

I .04

, a. 01

0

1.8 

.6

Maximum

0 

0 

0

6.5

0 

0 

.2

10 

- 

0 

0 

0 

0

10

May

> 0.02

01

0 

0

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

o

June

Mean

0 

0 

0

.222

0 

0 

.01 

.874 

.014 

0 

0 

0 

0

.074

July Aug. Sept.

Runoff in Diversion 

acre-feet acr^feett

0 86 

0 92 

0 105

160 1,680

0 105 

0 114 

.6 139 

52 167 

.9 142 

0 101 

0 66 

0 50 

0 47

54 1,210

(6 p.m.) 27 sec. -ft. 

ord furnished by that city.

a No gage-height record; discharge interpolated.
Extremes. - Maximum discharge during year, 140 second-feet Apr. 1 3; no flo/f during most of 

year.

lalb-21, 1952-48: Maximum discharge, 25,200 second-feet Mar. ", 1938, "by slope-area 

method; no flow during most of each year.

Remarks. - Ke:ords ^cod. _- _ :: x Fjntana pipe line Incluie Breed pipe line in.1 other 

minor diver:-'one in addition to main pine line flow which passes throafh Font via pcwerhc'ise and Is then used for irrigation ana domesti" supply. Table on following pa.'e 

shows combined flow of Lytlc f.i-ee': and Fontana pine line, v.'h'.ch '.~ lutal flr;v; ji Lyti-i 

Creek.

Discharge, in second-feet, water year October 1347 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. Nov. Dec.

 

o

0

3.1

0

j

Jan

0

. ^

.4

0

0

T

3

 3

)

i

3

0

\ ' '

Feb.

0

l

i.o

. R

3

0

n

14

' 0 | 0 l..~

^

1

1

0

0

o

0

0

,

c

3

0

0

o

0

o

0

'i 0

n

0

0

0

0

0

r,

T

3

0

0

3

0

0

0

0

Month

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

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

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

Calendar year 1347 .... ... . .

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

0

Q

0°

0

0

J

D

0

0

0

0

0

-

Second-- 

foot-days

n

^

3.1

1,217.2

. 7

February ...... ..... ........ ... IF , 4

March.. ....... ............ .| F.2

April ...... ........... . . ... .1 ', ? ^

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

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

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

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

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

Water year 1947-48

r '

^

J

43.1

Mar

";

0

n

Q

0

0

0

.b

-2

.1

.2

.2

.2

.3

.1

3

0

1.9

1.1

.4

.2

[2

.1

0

 1 

Apr.

o

.1

5. 0

l.S

1.3

_(-

. 2

.1

1.3

1.0

.5

_ 3

,. 1

3

0

0

0

0

0

3

0

0

0

0

.8

10

0

-

Maximum

0

3.1

Cl

. 4

1.?

10

^

0

0

14

May

Minimum

n

3

3

_,

^

2

Q

0

0

3

r)

June

Mean

0

.10

3.33

.02

.57

.20

.76

0

0

0

3

.13

July Aug

* ?£'.'.' ..4

0

0

2,420

1.4

33

12

45

0

0

0

0

98

Sept.

K^'^

1,500

1,420

1,273

23,470

1,180

1,350

1,470

1,640

1 , 730

1,240

950

355

789

15,390

t Diver-lor
SANTA ANA RIVER BASIN

Discharge, In second-feet, of Lytle Creek and Fontana pipe line 

water year October 1947 to September 1948

near Pontana, Calif.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

25

21

20

24

25

25

25

25

25

25

25

25

25

25

25

25

25

24

24

24

25

25

25

24

24

24

24

24

25

24

24

Nov.

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

23

23

23

-

Dec.

25

22

21

25

30

26

24

24

23

22

22

21

21

21

20

20

20

19

19

19

19

19

18

18

18

18

18

18

18

18

18

Jan.

18

18

18

18

18

18

19

19

, 19

19

19

19

19

19

19

19

20

20

20

20

20

20

20

20

19

20

20

20

20

20

20

Feb.

20

21

21

21

35

30

27

26

28

26

25

24

24

24

23

23

23

23

23

23

24

23

23

23

23

23

22

23

23

_

-

Month

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

Calendar year 1947 ......................

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

May..................................:.....

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

Water year 1947-48 ......................

Mar.

23

23

23

23

23

23

22

22

22

22

22

22

23

25

24

23

25

24

24

24

24

24

24

28

29

27

26

26

26

26

25

Apr.

25

25

36

39

33

31

30

29

27

28

28

27

26

26

26

25

25

25

25

25

25

26

26

26

26

26

26

27

49

34

Secondfoot-days

644

13,048

597

398

7,817

May

30

29

29

28

28

28

31

31

30

31

32

31

30

30

29

29

28

28

28

28

28

27

27

26

26

26

26

25

25

25

25

Maximum

25

30

106

32

25

1 A

14

49

June

25

25

24

24

24

23

22

22

22

21

22

21

21

21

21

21

20

20

20

20

20

20

19

19

19

18

18

18

18

18

Minimum

23

18

18

25

25

12

12

July

18

18

17

17

17

17

17

16

16

15

15

15

14

14

14

15

16

16

16

16

15

15

15

15

15

15

14

14

14

14

14

Aug.

14

14

14

14

13

13

14

14

14

14

15

15

15

15-

14

14

14

14

14

14

14

14

14

14

14

14

13

13

13

13

13

Mean

23 9

20.8

35.7

19 3

13 9

13.3

21.4

Sept.

13

13

13

13

13

13

13

13

12

13

13

13

13

13

13

13

13

13

13

13

13

14

14

14

14

14

14

14

14

14

-

Runoff in 

acre-feet

1,280

25,890

950

789

15,490
SANTA ANA RIVER BASIN 77

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

Location.- Water-stage recorder, lat. 34°05'45", 117°19'50", in San Bernardino Grant, at 

Mount Vernon Avenue Bridge in San Bernardino, San Bernardino County. Altitude of gage, 

about 1,050 feet.

Records available.- January 1929 to September 1948.

Extremes . - Maximum discharge during year, 12 second-feet Dec. 1 (gage height, 1.45 feet); 

minimum daily, 0.2 second-foot July 17.

1929-48: Maximum discharge, 21,500 second-feet Mar. 2, 1938, by computation of flow 

through contracted opening; no flow during parts of many years.

Maximum total discharge of Lytle Creek (east and west channels combined), 29,400 

second-feet Mar. 2, 1938.

Remarks.- Records poor. Water diverted from Lytle Creek above station by Tontana pipe 

line and minor diversions for irrigation, and to debris cone for ground-water recharg 

Since 1945, Lytle Creek flood-control dam 1.5 miles above station, has diverted flood 

flow away from this channel and carried it direct to Warm Creek. Capacity of floodcontrol channel, 30,000 second-feet. A maximum of 300 second-feet of low-stage flow

rge.

, , .

can be diverted to east channel at dam when desired. 

enter this channel.

Water over spillway of dam would

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2'6

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

3L

Oct.

0.6

.8

.8

.7

.6

.7

.6

.5

.6

.5

.5

.5

.6

.8

.8

.7

.7

.7

.4

.3

.3

.3

.4

.4

.5

.5

.5

.6

.6

.6

.6

Nov.

0.6

.6

.8

.7

.6

.6

.7

.7

.6

.6

.8

.8

.8

.8

.8

.1

.2

.2

.3

.3

.4

.4

.1

.9

1.0

.8

.8

.8

.8

.6

-

Dec.

1.3

.8

1.1

1.4

1.7

.9

.8

.9

.7

.6

.5

.6

.6

.6

.6

.6

.8

.7

.8

.8

.6

.8

.7

.7

.8

.8

.9

.8

.9

.9

.8

Jan.

0.7

1.0

1.0

.7

.8

.6

.6

.6

.6

.6

.5

.5

.6

.8

.5

.4

.4

.4

.4

.5

.8

.0

.1

.0

.1

.3

.6

.2

.8

1.1

.9

Feb.

0.6

1.2

1.6

2.0

3.4

1.6

1.3

.8

1.1

.9

.9

.9

.8

.9

.7

.7

.8

.8

.7

.8

.8

.8

.8

.8

1.0

1.1

.8

.9

.7

-

Month

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

Calendar year 1947 ......................

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

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

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

Water year 1947-48 ......................

Mar.

0.7

1.0

.8

a. 7

.6

.4

.4

.6

.6

.6

1.2

.1

.3

.6

.6

.6

.5

.3

.4

.4

.4

.4

.2

.0

.4

.1

.1

.8

.9

.1

.0

Apr.

1.0

.9

2.3

.7

.6

.8

.7

.8

.7

.8

a. 8

a. 7

a. 7

a. 7

a. 6

.6

.6

.7

.9

1.2

1.0

1.2

1.3

.9

.6

.7

.8

1.1

1.7

1.3

Secondfoot-days

25.5

255.4

19.0

296.2

May

1.5

1.5

1.1

.8

.8

.7

.7

.7

.7

.8

.7

.6

.6

.7

.8

1.1

1.4

1.2

1.2

1.3

1.8

1.5

1.4

1.5

1.7

1.4

1.4

1.1

1.1

1.3

.1.0

Maximum

1.7

2.8

1.7

3.4

June

1.2

1.0

.9

.9

.8

.9

.6

.7

.8

.8

.8

.9

.9

.7

.6

.5

.5

.7

.6

.5

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

-

Minimum

0.3

.5

.3

.4

.3

.2

July

0.6

.6

.5

.4

.4

.5

.5

.4

.4

.4

.4

.6

.6

.4

.4

.3

.2

.4

.7

1.2

1.0

.9

.8

1.2

1.1

1.1

.8

.7

.7

.7

.7

A'lg.

0.6

.6

.8

.6

.6

.7

.7

.6

.6

.4

.6

.4

.5

.4

.4

.5

.4

.3

.4

.5

.5

.4

.8

.7

.7

.8

.8

.5

.3

.8

.7

Mean

.82

.70

.63

.81

Sept.

0.5

.3

.3

.4

.4

.4

a. 4

a. 4

a. 4

.4

.4

.4

.4

.4

.4

.5

.5

.6

.7

.8

1.1

.9

1.3

1.7

.8

.8

.6

1.0

1.1

. 7

-

Runoff in 

acre-feet

35

52

51

508

38

589

Peak discharge (baae, 12 aee.-ft.).- No peak above base. 

a No gage-height record; discharge interpolated.
Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.R 

3.4 

3.? 

3.4

3.4 

3.6 

3.6 

3.9

3.9 

4.2

4.4 

4.4

4.4 

4.4 

4.1 

4.2 

3.9

4 . L

 $'.6 

3.6

Nov.

3.R

3.3 

3.9

3.9

3. '9

4.2

4.4 

4.4 

4.4 

4 .2 

4.4

4.4 

3.9 

4.2 

4.2 

4.2

 ) .2 

4 . 2

1 .?

4.2 

4.2

Dec.

5.5 

5.2 

S.6 

39

10 

fi.l 

5.8 

5.5

4.9

4.9 

i.J 

5.2 

5.2

5.5 

5.5 

5.8

5.8

f > . 5 

i.9

5.2 

1.9

4 , 9 

4.9 

5.2 

5.2

5.8

5, a

Jan.

5.8 

5.2 

5.2 

5.2

5.2

4.9 

4.9

4.6 

4. r 

4.6 

1.6 

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 

1.4 

4.4

 =.4

Feb.

4.6 

4.6 

4.f

15 

9.5 

7 . 5 

7.5

e.8

6.1 

6.1 

6.1 

6.1

6.1 

6.1 

6.4

6.4

b.l 

f.4

e.i

C.I 

5.B

5.8 

 T.i 

fi.4 

6.4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

ber. .......... .......... .........

mber. . . . 

lendar year 1947

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

ter year 1947-48 . . . .....

Mar.

6.4 

5.8 

5.2 

5.2

5.2 

4.9 

4.9 

4.6 

4.6

4.6 

4.9 

5.5 

6.1 

5.5

5.5 

6.4 

6.1 

6.4 

6.4

e!i

6.1 

9.8 

9.6

7 .5 

7 .1

7 .1 

0.4 

6.H 

RA

Apr.

K.I 

9.9 

9.2 

7.8

7.5 

7.1 

7.1 

6.S 

6.8

7.1 

6.8 

6.4 

5.8 

5. -5

5.5 

5.5 

5.5 

5.2 

4.9

5.2 

5.2 

4.9 

4.6 

4.6

4.9

4.6 

6.2 

7.4 

4.9

Secondfoot-days

119.3 

123.4 

203.3

2 ,087.6

146. C 

L'14.0 189.- 

185.1 

140.0 

118.4 

94.4 

89.2 

39.6

1,717.9

May

4.9 

4.9 

4.9 

4.6

4.6 

4.P 

4.6 

4.6 

4.9

4.9

4.6 

4.6 

4.4 

4.4

4.4

4.4

4.4 

4.6 

4.6

4.4 

4.2 

4.4 

4.4 

4.4

4.4 

4.4 

i.4 

4.2 

4.2 

4.4

Maximum

4.4 

4.4 

39

39

,^.3

9.6 

9.9 

4.9 

5.2 

3.6 

3.2 

3.2

39

June

4.6 

4.4 

4.4 

4.2

4.2 

4.2 

4.2 

3.9 

3.9

3.9 

3.9

3.9 

3.9 

3.9

3^9

3.9 

3.9

4.2 

4.2

3.6 

3.6

3.6 

3.4 

3.4 

i.2 

5.4

Minimum

3.2

3.6 

4.9

3.2

4.4 

4.4 

4.6 

4.6 

4.2 

3.2 

2 . 6 

2.6 

2.8

?.6

July

3.6 

3.6 

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

'.8 

2.6 

2.8 

2.8 

2.8

2.8 

2.8

2.e 

2.9 

3.0

Aug.

3.0 

3.0 

2.8 

2.8

2.8 

2.6 

2.8 

2.6 

2.8

2.6 

2.8 

3.0 

2.8 

2.8

2.8

2.8 

2.6 

2.8 

2.8

2.8

2.8 

o.C

3.0

5.0 

3.2 

3.2 

3.2

Mean

3.85 

4.11 

6.72

5.72

4.71 

7.38 

6.12 

6.17 

4.54 

3.95 

3.05 

2.88 

2.99

4.69

Sept.

3.0 

3.0 

2.8 

2.8

2.8 

2.8 

2.8 

2.8 

2.8

2.S 

2.8 

3.0 

3.C

3.0

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.2

3.2

3.2 

3.0

Runoff in 

acre-feet

237 

245 

413

4,140

290 

424 

376 

367 

279 

235 

187 

177 

178

3,410
SANTA ANA RIVER BASIN 

Weeks & Daley Canal near Colton, Calif.

Location.- Water-stage recorder and sharp-crested weir, lat. 34°04'45", long. 117°18'00", 

in San Bernardino Grant, at point of diversion from Warm Creek and 1.6 miles northeast 

of Colton, San Bernardino County. Altitude of gage, 965 feet (from topographic map).

Records available.- September 1920 to September 1948. 

Average discharge.- 28 years, 11.0 second-feet.

Extremes.- Maximum daily discharge during year, 20.9 second-feet Sept. 20; minimum daily, 

'i.a second-foot Dec. 9-17.

1920-48: Maximum daily discharge, 25 second-feet Mar. 2, 1938; no flow at times.

Remarks.- Records good. Canal diverts water from right bank of Warm Creek 1.6 miles northeast of Colton for irrigation in vicinity of Colton, Riverside, and Corona.

r evlsloi:s (wi f er years).- W ICV'.i:

Discharge, in second-feet, wster year October 1947 to September 1948

D?y

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

19.6

19.5

19.6

19.4

19.4

19.6

19.6

19.8

19.6

19.6

20.0

19.6

19.4

19.5

19.4

19.4

19.4

19.2

19.1

19.2

19.2

19.3

19.3

19.3

19.2

19.4

19.5

19.5

19.8

19.6

19.5

Nov.

19.6

19.6

19.6

19.4

19.5

19.4

19.4

19.6

19.6

19.0

19.1

19.3

19.3

19.4

19.4

19.6

19.6

19.6

19. 7

19.5

19.4

19.5

19.4

19.3

18.8

18.9

19. 6

19.4

19.4

19.5

-

Dec.

19.4

18.4

19.il

19.2

4.1

2.3

2.3

.9

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

1.0

2.8

3.7

4.2

3.9

4.0

Jan.

4.3

4.9

4.7

4.9

4.9

4.6

4.6

5.9

5.6

4.1

5.1

5.3

5.2

5.2

12.3

19.9

20.2

19.4

19.4

19.3

19.3

19.3

19.4

19.4

19.5

19.4

19.4

19.6

19.6

19.6

19.6

Feb.

19.6

19.6

19.4

19.3

11.0

4.6

3.4

3.1

3.0

3.1

3.0

2.9

3.0

3.1

3.1

3.1

3.2

3.2

3.3

3.4

3.4

3.4

3.2

1.3

.5

.4

2.3

3.5

3.4

_

-

Month

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

Novembe r ......................... .........

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

Calendar year 1947 .......................

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

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

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

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

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

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

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

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

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

Water year 1947 -48 ... ..................

Mar.

4.5

12.4

19.1

18.5

18.5

18.5

18.8

19.7

19.6

18.5

18.5

19.2

18.6

17.1

17.9

18.0

11.9

7.6

7.9

4.6

4.7

2.7

8.7

12.6

3.3

3.4

4.4

4.4

4.7

4.6

13.2

Apr.

19.5

19.0

12.7

3.4

2.8

2.7

2.6

2.5

2.4

1.2

10.2

16.7

16.9

16.6

16.6

16.5

16.6

16.6

16.5

16.6

17.4

18. 0

17.7

17.4

17.1

17.6

18.3

19.2

18.9

17.8

Secondfoot-days

603.5

582.3

109.6

5,548.8

i93.9

158.8

376.1

408.0

586.4

563.7

589.1

601.7

586.7

5,559.8

May

17.3

18.7

19.4

19.4

19.2

18.3

18.8

18.5

18.6

18.2

18.3

18.1

18.5

18.5

17.3

18.6

19.8

19.6

19.4

19.4

19.3

19.4

19.3

19.4

19.6

19.6

19.6

19.2

IB. 9

19.0

1S.1

Maximum

20.0

19.8

19.4

20.4

20.2

19.6

19.7

19.5

19.8

19.7

19 3

19.6

20 . G^

20.9

June

18.6

17.8

17.3

18.5

19.1

18.6

18.9

18.7

18.6

18.4

18.5

18.5

18.6

19.0

18.8

18.6

18.6

19.2

19.7

19.5

19.3

19.2

19.0

18.7

18.9

19.4

19.3

19.2

18.7

18.5

Minimum

19.1

18.8

.2

r,

4.1

.4

2.7

1.2

17.3

17. 5

18.4

19.0

"

.2

July

18.9

19.2

19.0

19.2

19.1

18.9

18.9

18.8

19.0

18.9

18.9

19.1

18.8

18.4

19.3

19.2

19.2

19.1

19.2

19.1

19.1

18.0

18.9

19.0

18.9

18.9

19.0

19.0

19.1

19.0

19.0

Aug.

19.2

19.5

19.6

19.6

13.4

19.4

19.4

19.4

19.6

19.3

19.3

19.5

19.4

19.4

19.4

19.3

19.2

19.2

19.1

19.0

19.6

19.6

19.4

19.2

19.3

19.6

19.6

19.6

19.6

19.6

19.4

Mean

19.5

19.4

3.54

15.2

12.7

5.48

12.1

13.6

18.9

18.8

19.0

19 4

19.6

15.2

Sept.

19.4

19.4

19.6

19.6

19.8

19.7

19.6

19.6

19.5

19.4

19.0

19.2

19.3

19.0

19.1

19.2

19.4

19.5

20.3

20.9

20.7

19.6

19.5

19.6

19.6

19.6

19.6

19.4

19.3

19.3

Runoff in 

acre-feet

1,200

1,150

217

11,000

781

313

74f

809

,160

,120

,170

,190

3 160

11,020
au SANTA ANA RIVER BASIN

Day Creek near Etiwanda, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°11'00", long. 117°32'25", 

 in yil-j sec. 8, T. 1N.,R. 6 W. , 0.2 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 1948.

Average discharge.- 19 years, 5.03 second-feet.

Extremes.- Maximum discharge during year, 81 second-feet Apr. 28; minimum daily, 0.2 secona-root on many days.

1929-48: Maximum discharge, 4,200 second-feet Mar. 2, 1938, by rainfall-runoff studies; minimum, 0.1 second-foot Dec. 19, 20, 1933.

Remarks. - Records good. Etiwanda Water Co. diverted 1,490 acre-feet above station during 

year. Flow of bypass channel 75 feet west of gaging station, amounted to about 25 acrefeet during year.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.5

.4

.4

.4

.5

.5

 5

.5

.6

.8

.9

1.1

1.1

1.0

.8

1.2

.9

.7

1.0

1.0

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Nov.

0.5

.6

.6

.5

.5

.5

.5

.5

.4

.4

.5

.5

.5

.5

.6

.9

.8

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.8

.8

-

Dec.

1.4

.3

.3

.4

6.2

4.0

3.4

3.2

2.1

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.6

.6

.7

1.2

.8

.4

.4

.4

.4

.4

Jan.

0.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.8

1.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Feb.

0.

3.

2.

-

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.7

2.3

1.6

.6

.6

.6

.6

.5

.5

.5

.4

2.0

4.5

5.2

2.7

1.8

2.0

2.0

4.8

Apr.

6.1

6.3

17

1.5

6.5

5.4

3.3

2.8

3.5

3.9

3.9

1.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

3.7

9.4

2.5

~

Secondfoot-days

20.3

15. 3

32J5

804.8

11.2

16.4

37.5

80.2

14.2

10.7

9.3

y . d.

266.5

May

1.8

1.5

1.6

.6

.3

.3

.3

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

Haximum

1.2

.9

6.2

17

1.3

3.8

5.2

17

1*8

.5

.5

.3

.4

17

June

0.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.3

.3

.3

.3

.3

.3

.2

.2

.5

.3

.3

.3

-

Minimum

0.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.3

.3

.3

.2

July

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.5

.5

.4

a. 4

a. 4

a. 4

f .4

.4

.4

.4

.4

Aug.

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

Mean

0.65

.51

1.05

2.20

. 36

.57

1.21

2.67

.46

. 32

.35

.30

.31

.73

'Sept.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

. o

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.3

.4

~

Runoff in 

acre feet

40

30

64

1,600

22

33

74

159

28

19

21

18

18

526

Peak discharge (base, 25 sec.-ft.).- Apr. 3 (5:30 p.m.) 46 sec.-ft.; Apr. 28 (11:30 p.m.) 81 sec.-ft.

a No gage-height record; discharge Interpolated.

f Computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN 81

Cucamonga Creek near Upland, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°10'15", long. 117°37'55", 

 in NE£ sec. 17, T. 1 N., R. 7 W., 6 miles north of Upland. Altitude of gage, about 

2,550 feet.

Drainage area.- 10.1 square miles.

Records available.- December 1928 to September 1948.

Average discharge.- 19 years (1929-48), 9.18 second-feet.

Extremes.- Maximum discharge during year, 48 second-feet Apr. 3 (gage height, 2.59 feet); 

minimum daily, 1.1 second-feet on several days.

1928-48: Maximum discharge 10,300 second-feet Mar. 2, 1938, from rainfall-runoff 

study; minimum, 0.8 second-foot July 16, 17,'Aug. 18 to Sept. 15, Oct. 2-6, 1934.

Remarks.- Records fair. No diversion or regulation above station. 

Revisions (water year).- W 1041: 1944.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.4

2.4

2.3

2.2

2.3

2.3

2.4

2.5

2.4

2.5

2.6

2.5

2.5

2.5

2.5

2.5

2.6

2.5

2.3

2.3

2.5

2.6

2.6

2.6

2.6

2.6

2.6

2.7

3.0

3.1

2.8

Nov.

2.8

2.9

2.9

2.8

2.9

2.7

2.7

2.6

a2.6

a2.6

a2.6

a2.7

a2.7

a2.8

32.8

a2.8

2.8

2.9

2.9

2.8

2.8

2.9

2.8

2.7

2.7

2.7

2.7

2.6

2.7

2.8

Dec.

3.4

3.6

3.5

6.3

8.1

5.2

4.3

3.9

3.8

3.6

3.5

3.5

3.5

3.5

3.5

3.5

3.6

3.6

3.5

3.5

3.6

3.6

3.4

3.4

3.4

3.5

3.4

3.4

3.5

3.5

3.5

Jan.

3.4

3.2

3.2

3.1

3.1

3.1

3.2

3.2

3.4

3.4

3.5

3.5

3.6

3.5

3.6

3.5

3.6

3.6

3.6

3.6

3.7

3.6

3.6

3.6

3.6

3.8

3.8

3.8

3.7

3.8

3.7

Feb.

3.7

3.9

3.9 3.8-

7.5

6.0

5.1

4.9

5.1

5.1

4.8

4.6

4.3

4.3

4.3

4.0

4.0

3.9

3.7

3.4

3.1

2.9

2.9

2.9

2.9

2.9

2.9

4.0

4.3

_

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

Mnv May ........................................

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

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

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

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

Water year 1947-48 ......................

liar.

4.0

4.0

3.9

3.9

3.8

3.7

3.7

3.7

3.8

3.8

3.7

3.7

4.1

5.1

4.4

3.9

4.7

4.1

4.3

4.1

3.9

3.8

4.3

5.9

4.9

4.5

4.3

4.0

4.0

4.0

4.0

Apr.

3.9

4.0

15

13

10

9.1

8.3

7.2

6.4

5.9

5.5

5.1

4.7

4.4

4.0

3.7

3.4

3.1

2.8

2.7

2.8

2.8

2.7

2.6

2.5

2.5

2.4

2.9

7.4

6.0

Secondfoot-days

78.2

82.7

119.1

2,134.1

108.6

119.1

128.0

156.8

119.2

71.7

58.2

38.9

42.5

1,123.0

May

5.6

5.6

5.3

5.2

4.9

4.7

4.5

4.5

4.4

4.3

4.0

3.9

3.8

3.7

3.6

3,5

3.5

3.5

3.6

3.5

3.4

3.0

3.0

3.0

3.0

2.9

3.0

3.1

3.0

3.1

3.1

Maximum

3.1

2.9

8.1

25

3.8

7.5

5.9

15

5.6

3.5

2.3

1.4

2.0

15

June

3.5

3.5

3.0

3.0

2.9

2.7

2.6

2.5

2.4

2.4

2.4

2.4

2.4

2.4

2.3

2.1

1.9

1.9

1.9

1.8

2.0

2.0

2.1

2.3

2.3

2.3

2.3

2.2

2.1

2.1

-

Minimum

2.2

2.6

3.4

2.2

^i.l

2.9

3.7

2.4

2.9

1.8

1.4

1.1

1.2

1.1

July

2.1

2.1

2.1

2.2

2.2

2.3

2.3

2.2

2.1

2.2

2.1

2.2

2.0

2.0

1.9

1.9

1.8

1.8

1.8

1.8

1.6

1.7

1.7

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.4

Aug.

1.4

1.4

1.3

1.3

1.2

1.2

1.2

1.3

1.2

1.3

1.4

1.4

1.3

1.2

1.2

1.2

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.3

1.4

1.4

1.3

1.3

1.2

1.2

1.2

Mean

2.52

2.76

3.84

5.85

3.50

4.11

4.13

5.23

3.85

2.39

1.88

1.25

1.42

3.07

Sept.

1.2

1.2

1.2

1.2

1.3

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.6

1.6

1.6

1.6

1.6

1.7,

1.8

2.0

1.9

1.8

1.6

1.5

1.4

1.3

-

Runoff in 

acre-feet

155

164

236

4,230

215

236

254

311

236

142

115

77

84

2,220
SANTA ANA RIVER BASIS

San Jaointo River near San Jacinto, Calif.

Location.- Water-stage recorder, lat. 33°44'05", long. 116°49'45", in SE£ sec. 13, T. 5 S., 

FT1 E., at highway bridge 1 mile downstream from North Fork and 8.2 miles southeast of 

San Jaointo, since Jan. 23, 1948; preceded by two staff gages at same location. Altitude of gages, about 1,980 feet.

Drainage area.- 140 square miles.

Records available.- October 1920 to September 1948.

Average discharge. - 25 years (1921-25, 1927-48), '^-1 £C.?or.a-f'ect.

Extremes.- Maximum discharge during year, 60 second-feet Apr. 4 (gage height, 4.10 feet); 

no flow during most of year.

1920-48; Maximum discharge, 45,000 second-feet Feb. 16, 1927, by slope-area method; 

no flow during several months of most years.

Remarks - Records poor. Diversion and storage above station for irrigation. Partial regulation by Lake Hemet.

Cooperation.- Gage-height record prior to Jan. 23, 1948, furnished by Lake Hemet Water Co. 

Revisions (water year).- '' "SI: 1 '- ".

Discharge, in second-feet, water year October 1117 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30,~1

Oct. Nov. Dec.

0

0

0

£.5

16

9.4

3.2

.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan. Feb.

r>

0

0

o

7.7

7.1

.5

.01

.01

.01

.01

.01

.01

0

0

0

0

0

.01

.01

.01

.01

.03

.01

.01

.01

.01

.01

.01

c

Month

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

Calendar year 1S47 ...................

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

Water year : 947- 45 ...... ......... .....

Mar.

0.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.1

.01

.01

.06

.01

.01

.01

.01

.01

.01

2.4

.0

.0

.01

.01

.01

.01

Apr.

O.Cl

.01

13

46

LI

4.1

.01

0

0

0

.2

.01

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Secondfoot-days

31.6

309.4

0

134. E7

May

Maximum

16

17

0

K

June

Minimum

0

0

0

0

July Aug. Sept.

Mean

1.02

.85

.3f 7

Runoff in 

acre-feet

63

614

0

r:s7
Lj'jatlcn.- Water-stage recorder, lat. JL'°a ol i5", long. 117°17'45", near 

2, T. 6 S., R. 4 W. , 2 miles east o*' Zlsinore and 2.2 miles upstream 

(low-water stage). Altitude of J'^H, about 1,270 feet.

Drainage area.- 717 Lqaare miles.

Records available.- January l~J ]i to September 1948.

Average aisohargeV- 32 yeart, 17.2 second-feet.

Extremes . - Maximum discharge daring year, " 

no flow i'rj'nr: several month.1-.

131G-48: KsAimjc dip'\ji"-r . ^ ,': :.(. s°cona-fpet Pel. 17, 3 CO 

feet), ty cloce-ai'ea m^-thoa; iio fl^w ijring several months 1:. rr

Remarks.- 3>;:",r.i;- p-ool. storage and d;versions above station iur ' 

!''. T "rv f.pilroa

Si 

10 .

October.. 

November. 

December.

Calendar year

January... 

February.. 

March.....

April ... 

May... ...

June......

July. .....

August....

September.

Water year rj47~ia

Secondfoot-daysiff in 

-feet

co-nputed on basis of 1 discha
84 SANTA ANA RIVER BASIN

Temesoal Creek near Corona, Calif.

Location.- Water-stage recorder, lat. 33°50'30", long. 117°30'45", in El Sobrante de San 

jacinto Grant, 0.5 mile upstream from Blue Diamond Quarry and 4 miles southeast of Corona, Riverside County. Altitude of gage, about 730 feet.

Records available.- January 1929 to September 1948. 

Average discharge.- 19 years, 5:44 second-feet.

Extremes.- Maximum discharge during year, 5 second-feet Feb. 5 (gage height, 4.15 feet); 

no flow during most of year.

1929-48: Maximum discharge, 14,900 second-feet Mar. 2, 1938, by slope-area method; 

no flow during parts of some years.

Remarks.- Records poor. Many diversions and several storage reservoirs in basin above this 

station, principally above Elsinore Lake.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

0

0

0

0

.6

.2.

.1

0

0

.4

.1

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

_

-

Month

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

Calendar year 1947 .....................

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

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

Water year 1947-48 ......................

Mar. Apr.

Seoondfcot-days

0

0

0

1.4

Hay

Maximum

0

0

0

.6

June

Minimum

0

0

0

0

July Aug.

Mean

0

0

0

0

.004

Sept.

Runoff in 

acre feet

0

0

0

0

0

0

0

0

0

2.8

Note.- No flow during year except on a few days in February, vhen gage-height record was incomplete 

and uncertain; discharge partly estimated.
SANTA ANA RIVER BASIN 85

Bautista Creek near Hemet, Calif.

Location.- Water-stage recorder, lat. 33°41'40", long. 116°51'00", in NE^SWi sec. 35, T. 

 5 S., R. 1 E., 6 miles above mouth, and 8 miles southeast of Hemet. Altitude of gage, 

about 2,250 feet (from topographic map).

Drainage area.- 39.4 square miles.

Records available.- October 1947 to September 1948.

Extremes.- Maximum discharge during year, 10 second-feet (estimated) Dec. 5, Feb. 5 (gage 

height, 2.82 feet). No flow during most of year.

Remarks.- Records poor. Dne diversion above station for irrigation; no water diverted

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

 1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

0

0

0

.2

1.0

.5

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan. Feb.

0

0

0

0

.9

.4

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Month

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

Calendar year ......................

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

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

Water year 1947-48 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

0

0

0

0

0

.03

.1

0

0

0

0

0

Apr.

Secondfoot-days

0

0

1.9

-

0

3.53

May

Maximum

1.0

-

0

1.0

June

Minimum

0

-

0

0

July Aug.

Mean

.06

_

0

.01

Sept.

Runoff in 

acre-feet

3.8

_

0

7.1

889419 O - 50 - 7
San Antonio Greek near Claremont, ;ali:.

Location.- Water-stage recorder and tread-crested weir, lat. 34 C1 12'50", long. HVMJ'O'j",

n NWrSE£ sec. 36, T. 2 H. , H. 8 W. , v. ;ile v-jsti-eam from Southern California Ediso

Co.'s Sierra power plant and 8 pi IPS northeast of Claremont. Altitude of g'iee, ao<jut

ire dis?hur£te.- 31 years (lyl?-49), 11.1 second-leet. Average combined discharge of

creel: and conduit, 31 years (1917-43), 24.2 second-feet

Extremes.- Maximum discharge during year, 20 second-feet Apr. 28 (gage height, 1.59 feet)

minimum daily, 0.2 second-foot Aug. 30 to Sept. 15.

jna-feet Ma.-. 2, i!

RemarKS - Records fair. Southern California Edison Co.'s conduit diverts water above 

station (see p.88).

Cooperation - One discha-ge measurement furnished by Los Angeles County Flood Control 

DiFtr-lct, through H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October1S4? to Septenbi

Day| Oct.

x

2

a

4

6

7

9

10

11

12

13

14

15

16

17

18

.7

 ?

.8

' 

Nov.

..-. . s

.7

 £

p

1.1

Dec.

. 0

j. .4

i .4

I- 7

1 .4

i._

.8 1.1

.8 , 1.0

;Bi.-j

 \

1.1

1 .2

. 3

.9

1.'

1.0

1.0

_ 0

.J

19

20

21

22

2,i

24

2b

26

27

28

29

30

31

.7

.8

.3

.8

.8

.9

1.0

1.0

l.ri

1.0

. ;.»

.9

l.l

1.1

l.J

i .r i.;

i . j

1.0

.9

1.1

1.2

-

.13

.^

.fl

.fl

.8

.d

.9

1 .0

1 .1

1.1

.8

7

.7

.8

1.1

Jan.

'.*

.d

^

.^

.9

 9

;;

.d

.9

3

.,-

Feb.

5

^

1 .-

Q

f-

~

3 '<' . a

q

.d-C:'

."

.^

-,

^

.7."

.7

.8

.8

.8

.7

 e

,

T

-

.y

.M

.0

.p

.9

1.0

.8

.9

-

Month

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

Calendar year 1947 ................ ....

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

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

Water year 1947 48 ................. . . .

Mar. Apr. May

, i L-l 1.'

^

 --

' (

."

7

1.

1. H

1..

.8

<- . -

i ^

l'.Z

1 .4

^

1.3

. j ! . J

. 5

4

. 1

1 r

T_ T_

n

K i 4 1 "'

.,-- j . 1 .3

P ^

a

.,

a

.9 1 . 'J

-

1.1

rj i ' n

l.C,

1.,

1.4

1.3

1.2

1.1

1.1

.9

.8

f

.7

2.n

2.1

-'- \

Secondfoot-days

2* a

33. i

1 , 503 . 7

29 5

'' .8

T '' 7 . I :

,q

June July

1

.3

1 . C:

l.f

 ^

.8

" 7

.7

.6

.8

.6

.7

'q

.a

a

.7

.7

.7

.6

^

L -s

Maximum

2.9

74

.4

t.=>

.f

fi

.7

.8

.n

g

7

- .6

-

Minimum

.7

.5

0

.2

.2

r

.6

'1

.5

-4.

4

. G

. 1

.

4

, E

B

.4

4

.4

.3

.3

3

5

.3

.-

.3

Aug.

, ,

Sept.

;-. |

 ".

,

 ^ >;

.'-'

 , -

.4

a

4

^

. r

j

4

. 1

.4

. 5

.4

.4

.4

.4

3

.3

3

~

.2

Mean

1.07

4.12

_ r

.E6

. ,'C

.4

4

.^

*

^

- 

.4

.4

.4

.3

.2

-

Runoff in 

acre-feet

66

2,980

59

15

549
SANTA ANA RIVER BASIN

Combined discharge, i,- second-feet, of San Antonio Creek and Southern California Edison Co. 1 conduit near Claremont, Calif., watei> year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.6

9.6

9.7

9.0

9.0

9.8

3.7

9.7

9.7

9.8

10

9.8

10

9.8

9.5

9.8

9.7

9.7

9.0

9.3

9.4

9.4

9.5

9.5

9.5

9.5

9.6

9.7

9.4

9.4

9.4

Nov.

9.2

9.1

9.0

9.0

9.0

9.2

9.5

9.4

9.2

9.4

9.4

9.5

9.6

9.3

9.3

9.4

9.2

9.3

9.0

9.0

9.1

9.2

9.4

9.4

9.4

9.1

8.8

8.7

8.9

9.0

-

Dec.

9.1

9.2

9.2

13

14

12

9.7

9.8

9.5

10-

9.3

9.4

9.4

9.2

9.2

8.9

8.9

8.9

8.9

8.9

8.9

9.0

9.0

9.1

9.1

8.7

8.6

8.5

8.5

8.4

8.7

Jan.

8.5

8.6

8.6

8.5

8.5

8.7

8.7

8.5

8.5

8.5

8.5

8.4

8.4

8.5

8.5

8.5

8.4

8.4

8.3

8.3

8.3

8.2

8.2

8.3

8.0

7 .7

8.0

8.1

8.1

8.1

8.0

Feb.

8.0

8.1

8.1

8.1

9.2

8.5

8.5

8.5

8.9

8.9

8.6

8.5

8.4

8.4

8.4

8.5

8.5

8.5

8.9

8.9

8.9

8.7

8.7

8.4

8.1

8.5

S.r

8.6

8.7

_

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

nay. Ua tr .......................................

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

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

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

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

Water year 1947 -48 ... ..................

Mar.

8.7

8.6

8.6

8.6

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

9.0

9.0

9.0

9.2

8.8

9.3

9.3

9.3

9.0

8.9

10

10

10

9.9

9.8

9.5

9.5

9.7

Apr.

9.6

9.6

13

11

11

11

10

9.8

9.7

9.7

9.7

9.6

9.6

9.6

8.9

10

10

11

11

12

11

12

12

12

12

12

13

14

18

18

-

Secondfoot days

296.5

276.0

293.0

258 . 8

247.6

280.2 

339 .8

458

340.6

2 58 . 2 

205^8

177.9

3,432.4

May

17

16

15

15

15

15

16

16

16

16

16

16

15

15

15

15

15

16

16

15

15

15

14

13

13

13

13

13

12

13

1.

Maximum

10

9.6

14

95

9.2

10 

18

17

14

9 . 8

7.0 

6.2

18

June

13

14

12

12

12

12

11

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

10

10

10

9.9

9.8

9.6

9.3

-

Minimum

9.0

8.7

8.4

8.4

7.7 

8 . 0

8 . 9

12

7.3

6 . 1 

5.8

5.8

July

9.4

9.6

9.8

9.6

9.3

8.8

9.0

9.0

8.9

8.9

8.8

8.5

8.6

8.5

8.2

8.2

8.2

8.2

8.1

8.2

.9

.7

.7

.7

.6

.3

.3

.3

.3

.3

.3

Aug.

7.0

7.0

7.0

6.

6.

6.

6.

6.

6.

6.

6.8

6.8

6.8

6.6

6.6

6.6

6.6

6.K

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.5

6.5

6.5

6.1

6.1

Mean

9.56

9.20

9.45

18 . 8

8 35

8 54

9.04 

11.3

11^4

® ^

6.64 

5.93

9.38

Sept.

6.1

6.1

6.1

6.1

6.1

6.1

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.9

5.9

6.0

6.0

5.9

5.9

5.9

6.2

5.9

6.0

6.0

6.0

5.9

5.8

5.8

-

Runoff in 

acre feet

588

547

581

13,580

513

491

55R

674

908

67 6

512

408 

353

6,810
88 SANTA AHA RIVER BASIN

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

Location.- At Southern California Edison Co.'s Sierra power plant, lat. 34°12'45", long.

 IIVMO'IS" , in NW^-SE^- sec. 36, T. 2N..R. 8W., 1.5 miles downstream from intake and 

8 miles northeast of Claremont. Altitude of gage, about 3,160 feet.

Records available.- January 1917 to September 1948. 

Average discharge.- 31 years, 13.1 second-feet.

Remarks.- Conduit diverts water from San Antonio Creek in SE^ sec. 25, T. 2 N., R. 8 W.,

 1 mile upstream from gaging station on San Antonio Creek near Claremont. Water is 

used for power development and then for irrigation. Discharge is comouted from record 

of kilowatt output of Sierra power plant.

Cooperation.- Records furnished by Southern California Edison Co.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.0

9.0

9.0

8.4

8.4

9.0

9.0

9.0

9.0

9.0

9.5

9.0

9.0

9.0

8.7

9.0

9.0

9.0

8.4

8.7

8.7

8.7

8.7

8.7

8.7

8.7

8.7

8.7

8.4

8.4

8.4

Nov.

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

7.8

7.8

7.8

7.8

-

Dec.

7.8

7.8

7.8

11

11

11

8.4

8.4

8.4

9.2

8.4

8.4

8.4

8.4

8.4

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.0

7.6

7.8

7.8

7.8

7.6

7.6

Jan.

.6

.8

.8

.8

.8

.8

.8

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.3

.0

.3

.3

.3

.3

.3

Feb.

7.3

7.3

7.3

7.3

7.8

7.3

7.3

7.6

8.1

8.1

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

8.1

8.1

8.1

7.8

7.8

7.6

7.3

7.6

7.6

7.8

7.8

_

-

Month

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

Calendar year 1947 ......................

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

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

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

Water year 1947 48 ......................

Mar.

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

8.4

8.4

8.4

8.4

8.1

8.4

8.4

8.4

8.1

8.1

9.0

9.0

8.7

8.7

8.7

8.4

8.4

8.4

Apr.

8.4

8.4

11

9.5

9.2

9.5

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

8.5

10

10ID10

11

9.8

11

11

11

11

11

12

12

16

16

-

Secondfoot-day s

259.9

5,340.7

3O9 9

170.1

3,150.1

May

15

15

14

14

14

14

15

15

15

15

15

15

14

14

14

14

14

15

15

14

14

14

13

12

12

12

12

12

11

12

12

Maximum

11

23

5.9

16

June

12

13

11

11

11

11

10

11

11

11

11

11

11

11

11

11

11

10

10

10

10

10

9.8

9.8

9.5

9.4

9.2

9.2

9.0

8.7

-

Minimum

7.6

7.6

5.6

5.6

July

8.7

9.0

9.0

9.0

8.7

8.2

8.4

8.4

3.4

8.4

8.4

8.1

8.1

8.1

7.8

.8

.8

.8

.6

.6

.3

.3

.3

.3

.3

.0

.0

.0

7.0

7.0

7.0

Aug.

6.7

6.7

6.7

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

5.9

5.9

Mean

8.38

14.6

5.67

8.61

Sept.

5.9

5.9

5.9

5.9

5.9

5.9

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.9

5.6

5.6

5.6

5.6

5.6

5.6

5.6

Runoff in 

acre-feet

516

10,600

337

6,250
SANTA ANA RIVER BASIN 89 

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

Location.- Staff gage, lat. 33°47'10", long. 117°43'35", in Lomas de Santiago grant, at 

Santiago Dam, 1.5 miles east of Irvine Park, and 5 miles east of Villa Park, Orange 

County. Datum of gage is mean sea level.

Drainage area.- 63 square miles.

Records available.- October 1931 to September 1948.

Average runoff.- 15,660 acre-feet per year (81.6 second-feet).

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

rainfall on reservoir, computed on basis of records of storage, draft, spill, waste, 

leakage, and evaporation. This earth-fill dam was completed in December 1931. Capacity 

and area ratings for reservoir are dated December 1930. Capacity of reservoir at spillway level (gage height, 790.0 feet), 25,000 acre-feet. Dead storage below lowest outlet 

included in these records. Gage read daily about 5 p.m. Water released to conduits as 

required for irrigation is called draft; water released back to creek is called waste. 

Evaporation since January 1946 computed from records of a U. S. Weather Bureau pan on 

crest of dam; evaporation prior to January 1946 estimated on basis of records at four 

nearby evaporation stations in Los Angeles County.

Spill, waste, and leakage combined, represent all water passing down Santiago Creek 

from Santiago Dam. There are no separate records of these three elements except for 

period Mar. 2-11, 1938, for which discharge over spillway has been computed from a 

spillway rating and a continuous record of height of water surface above spillway crest, 

obtained from a water-stage recorder. It has been assumed that during this period there 

was no waste and negligible leakage. For all other periods for which values are given 

in table for these three elements combined, the values are computed on basis of discharge at gaging station 4 miles downstream on Santiago Creek near Villa Park (see p.94) 

and the estimated runoff from intervening drainage area of 21 square miles. For the 

purpose of these records, the quantity of water diverted 3.5 miles downstream by Serrano 

and Carpenter Canal is presumed negligible after January 1932.

There are no gates on spillway, but each year on or about Apr. 1, sandbags are placed 

on spillway to prevent further spill during that year. At such times water is wasted 

through outlet conduit to prevent spill while sandbags are being placed. No leakage is 

assumed.

Cooperation.- Records of reservoir operation and draft furnished by the Serrano and 

carpenter Irrigation Districts and Irvine Ranch. Spillway rating furnished by Orang 

County Flood Control District. Water-stage recorder record used for Mar. 2-11, 1938, 

furnished by Corps of Engineers.

Revisions - Revised monthly records for the water years 1932 to 1936, superseding thot,- 

published in Water-Supply Papers 736, 751, 766, 791, and 811, under the station name, 

Santiago Creek at Santiago Reservoir, near Villa Park, are given on the following pages. 

Records of runoff and peak discharge for the March 1938 flood, superseding those published in Water-Supply Paper 844, are given herewith.

Daily inflow and outflow, in second-feet, 1938

Feb. 28 

Mar. 1 

2 

3 

4 

5

Inflow

285 

590 

3,850 

1,680 

575 

315

Outflow

0 

0 

1,370 

2,420 

822 

408

Mar. 6 

7 

8 

9

10 

11

Inflow

220 

167 

155 

139 

121 

102

Outflow

265 

193 

164 

145 

133 

110

Feb. 28 to Mar. 11, 1938: Inflow, 16,260 acre-feet; outflow, 11,960 acre-feet.

second-feet, at indicated time, 1938

Hr.

1

2

3

4

5

6

7

8

9

10

11

N

1

2

3

4

5

6

7

8

9

10

11

M

Feb. 28

90

92

92

92

105

150

205

190

185

190

210

250

370

660

1,050

1,420

Mar. 1

1,600

1,700

1,410

1,000

870

760

650

570

550

510

405

340

320

315

310

300

270

240

225

210

210

220

230

250

Mar. 2

330

460

580

750

920

1,100

1,330

1,900

H,800

3,150

3,650

4,100

5,100

6,500

7,100

7,900

8,700

8,200

6,700

6,100

5,100

4,500

3,800

3,300

Mar. 3

3,000

2,500

2,200

2,100

2,200

2,200

2,150

2,050

1,940

1,820

1,700

1,600

1,500

1,430

1,370

1,300

1,250

1,180

1,110

1,050

980

910

870

850

Mar. 4

800

740

680

630

600

560

5ZO

480

450

440

410

390

Mar. 5

380

380

370

350

320

290

280

280

280

280

260

260

Mar. 6

260

250

240

230

225

215

210

200

195

195

190

185

Mar. 7

185

180

180

175

170

165

160

155

155

150

155

155

Mar. 8

155

155

155

155

150

145

Mar. 9

145

140

135

135

135

130

Mar. 10

130

125

120

115

110

105

Peak discharge.- Mar. 2 (5:40 p.m.) 8,900 sec.-ft.
Outflow from Santiago Reservoir, In second-feet, at Indicated time, 1938

Hr.

1

2

3

4

5

6

7

8

9

10

11

N

1

2

3

4

5

6

7

8

9

10

11

H

Mar. 2

0

0

0

0

0

0

0

30

544

1,360

2,390

3,450

4,140

4,560

4,740

4,740

4,630

4,420

Mar. 3

4,190

3,920

3,620

3,370

3,140

2,990

2,850

2,730

2,610

2,490

2,380

?,270

2,160

2,050

1,950

1,860

1,770

1,690

1,620

1,540

1,450

1,380

1,320

1,270

Mar. 4

1,210

1,160

1,110

1,070

1,020

983

937

910

873

846

819

793

758

732

698

681

656

640

E24

607

583

567

552

536

Mar. 5

521

505

490

483

468

" 461

453

446

431

417

410

403

389

382

375

361

354

348

348

342

335

328

322

316

Mar. 6

309

296

290

284

272

266

253

247

241

235

224

218

Mar. 7

213

207

190

179

174

169

Mar. 8

166

166

166

1G6

159

154

Mar. 9

148

143

143

143

143

143

Mar. 10

138

138

133

128

128

124

Peak discharge.- Mar. 2 (9:30 p.m.) 4,800 sec.-ft.

Monthly runoff, October 1931 to September 1948

"onth

August ... ...

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

Water year 1931-32...

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

Calendar year 1932. . .

May

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

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

Water year 1932-33...

September 1933. .... .

December. ........

Calendar year 1933...

January 1934. .......

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

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

September. .......

Water year 1933-34...

Santiago

Gage 

height 

(feet)

747.7

-

738.5

-

42 5

734 2

730.5

-

718.0

-

732.5

731.5 

731 £

719.0

-

Reservoirt

Contents 

(acrefeet)

6,590

-

4,380

-

2,980

-

1,430

-

3,280

3,120

1,530

-

Change

contents 

(acrefeet)

-820

+6,590

1 290

-110

+3,780

-580

-3,610

+280

-2,950

+300

-160

-410

-1,450

Draft

(acrefeet)

1,044

5,222

912

177

7,807

954

1 °4b

832

8,038

114

7,954

9

472

557

5,897

Evapo-

(acrefeet)

152

1,314

C8

1,619

1 39

86

1,324

28

1,153

62

76

64

769

Spill,

leakage 

(acrefeet)

100

0

. 40

0

0

0

n

0

0

0

0

0

0

Runoff

(acre-

^feet)

37e

13,460

233

322

135

13,206

549

425

338

5,752

422

6,157

371

388

Cll

5,216

t On last day of month.

Note.- No actual records of reservoir operation prior to February 1932; 

on basis of records and estimates of monthly runoff of Santiago Creek neai 

San Juan River, Temecula Creek, and Serrano and Carpenter canal.
September 1I4S-- ntinu

July..... 

August.. . 

September

Water year 1934-35.

September 1935. 

October........

November. ......

December. ......

Calendar year 1935.

July......

August. . . .

September.

Water year 1935-36

Calendar year 1936.

July.... 

August. . 

Septembe

Water year 1936-37.

September 1937. 

October........

November.......

December.......

Calendar year 1957.

July......

August....

September.

Water year 1937-38.

October 1938. 

November..... 

December.....

Calendar year 1938.

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

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

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

Water year 193S-39..... 

T On last day of month.

733.

738.

780.0

777.7

779.6

780.7

783.7

785.3

785.4

783.5

780.5

776.6

774.6

773.6

19,380

18,210

19,170

(acrefeet)

+570

+1,630

+900

+60

-1,070

-1,620

-1,980

-970

-470

1,479

1,308

771 

700 

L76

0

0

103

1,733

2,200

1,792

1,611

10,173

10,539

399 

3P4

180

120

178

242

286

320

381

397

345

277

251

173

20,000

1,500

929

818

,019

810

517

345

467

485

393

434

409

437

302

227

1.132

19,729

724

1.804

1,070

S53

643

535

518

345

522

9,154
SANTA ANA RIVER BASIN

Monthly runoff from Santiago Reservoir, October 1931 to September 1948--Continued

Month

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

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

Calendar year 1939. .......

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

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

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

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

October 1940. ...............

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

Calendar year 1940. ............

January 1941 .............

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

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

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

Water year 1940-41. ............

September 1941 .............

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

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

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

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

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

October 1942 .................

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

Calendar year 1942 .............

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

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

Water year 1942-43. ........

September 1943. .............

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

Calendar year 1943. .........

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

Water year 1943-44. ............

t On last day of month.

Santiago

Gage

height 

(feet)

770.2

_

768.8

_

767.4

_

793 9

793 6

786.0

_

784.5

_

771.8

_

767.8

_

784.5

_

781.5

_

792 5

781.9

_

Reservoir

Contents 

feet)

16 220

14,690

.

14,050

_

13,430

_

22 500

22,670

_

21,820

_

15,400

_

13,610

_

21,820

_

20,170

.

25 120

23 720

20,380

_

Change 

in

content 

(acrefeet)

-490

'-4,480

-990

-2,170

+690

-1,260

-1,050

+8,620

+280

+8,390

-780

-7,270

-400

-8,210

-1,200

+6,420

+160

+6,560

+4 750

-1,270

1,440

Draft

(acrefeet)

509

9,282

5

589

2 397

1,032

8,248

240

8,208

2 192

1,276

7,316

208

7,416

2 322

769

10,262

407

0,402

1 952

1,365

9,021

318

9,512

2 273

2 219

1,377

0,039

Evapo-

(acrefeet)

148

2,790

254

249

2,508

137

2,475

324

287

2,777

245

135

2,864

295

237

2,740

140

2,651

328

2,963

254

117

3,039

269

2,805

Spill, 

waste and

leakage 

(acrefeet)

0

0

0

0

0

0

0

30,050

0

30,050

0

0

0

0

3 525

25

0

16,400

0

16,400

0

5,980

Runoff

(acrefeet)

245

167

7,592

415

291

8,586

215

1,067

9,423

21 291

513

48,763

623

48,720

729

226

5,732

147

4,843

2 543

493

34,804

323

595

35,511

376

7,384
3ANTA ANA RIVER BASIN 93

Monthly runoff from Santiago Reservoir, October 1931 to September 1948--Continued

Month

October 1944. ...........

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

Calendar year 1944. ..........

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

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

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

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

Water year 1944-45. ..........

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

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

Calendar year 1945. ..........

January 1946. ................

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

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

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

Water year 1945-46. ..........

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

Calendar year 1946. ..........

January 1947...... ... .. ...

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

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

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

Water year 1946-47. ..........

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

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

Calendar year 1947 ...........

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

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

Water year 1947-48. ..........

Gage 

height 

(feet)

782.2

_

793 1

-

780.2

_

774 5

772.6

-

772 9

775.2

_

775 2

766.2

-

761.8

-

740.7

Contents 

(acrefeet)

20,540

_

-

19,480

_

15,760

_

16,970

_

12,910

_

11,150

_

4,850

in

contents 

(acrefeet)

+210

+370

+220

+1,120

-1,060

+50

-880

-4,840

+1,070

-2,510

-1,010

-2,850

0

-5,820

-550

-8.060

Draft

(acrefeet)

59

9,102

2 327

1 923

10,105

623

11,853

2 392

1 '984 235

11,065

159

4

8,845

959

7,849

41

8,873

524

617

9.229

Evaporation 

(acrefeet)

161

2,726

259

334

341

2,737

205

148

2,759

152

299

250

2,492

91

2,345

192

223

234

2,229

113

2,229

132

152

123

1.623

waste and

leakage 

(acrefeet)

0

5,980

2,750

0

2,750

0

0

0

0

0

0

0

0

0

0

Runoff

(acrefeet)

430

18,178

15,812

1,891

16,302

245

354

8,717

1,165

8,680

434

183

7,228

154

5,282

190

2.792

t On last day of month.
y4 SANTA ANA RIVBR BASIN

Santiago Creek near Villa Park, Calif.

Location.- Water-stage recorder and concrete control, lat. 33°49'10", long. 117°46'30", 

in swf sec. 13, T. 4 S., R. 9 W., 0.6 mile downstream from diversion dam of Serrano 

and Carpenter Irrigation Districts and 1.3 miles northeast of Villa Park. Altitude of 

gage, about 420 feet.

Drainage area.- 83.8 square miles.

Records available.- June 1920 to September 1948.

Average discharge.- 28 vears, 8.94 second-feet.

Extremes.- Maximum discharge during year, 1.1 second-feet Dec. 4 (gage height, 1.18 feet;; 

no 1'Iow during several months.

1920-48: Maximum discharge, 11,000 second-feet Feb. IP, U27 (gage heignt, 8.4 

feet), by slope-area iiethod; no flow during several months each year.

Remarks.- Records good. Diversions above station by Irvine Co. and Serrano and Carpenter 

Irrigation Districts. Flow completely regulated by Santiago Reservoir.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4

5 

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

0 

0

0

e . ol

e.02

I'"

Dec.

k eO.OZ

.1

.2

.1

Jan.

> eO.Ol

Feb.

0 

0 

0

0

I e.04

I

1

> e.ol

)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

_-

Month

Decembe r ...................................

Calendar year 1947 ......................

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

Water year 1947-48 ... . . . . ....... . .

Mar.

e i.Ol

0

0

0

0

0

/

1f e.OS

f"»

0

0

0

0

0

0

Apr.

0 

0 

.2

.1

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Secondfoot-days

1.37

20.06

0

2.99

May

Maximum

0

.2

1.0

0

.2

June

Minimum

0

0

0

0

July Aug.

Mean

.044

.055

0

.008

Sept.

Runoff in 

acre-feet

0

1.0

2.7

40

0

5.9
Santiago Creek at Santa Ana, Calif.

Location.- Water-stage recorder, !&'- 33"46'10" (revised), long. 117°.b2'-jb' 1 

Santiago de Santa Ana Grant, at end of Baker Street, Santa Ana, Orange i\ 

feet upstream from mouth. Altitude of gage, about 120 feet.

Records available.- January 1929 to September 1948. 

Average discharge.- 19 years, 7.11 second-feet.

Extremes.- Maximum discharge during year, 28 second-feet Apr. 3 (gage height 

no flow during most of year.

1929-48: Maximum discharge, 4,400 second-feet Mar. 2, 1938 (gage Lei,' 

from rating curve extended above 1,200 second-feet ry logarithm!-' plutt.1:". 

ing most of each year.

;/ ji-ai.ge bounty Flood 

Discharge, in second-feet, water year October . to September .0

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct. Nov. Dec. Jan. Feb.

0

f&.2

C 

0 

G

0

0 

0

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

Mn V

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1947

ember.*. ......................... ......

ter year 1947-48 ......................

Peak discharge (base, 120 sec. -ft.).- No pe

f Computed on basis of partly estimated gag

Mar.

0 

0 

0 

0

0

0 

0 

0

0 

0

0 

0

0 

0 

0

10

.1

5.8 

0 

1.8 

0

0 

0 

0 

0 

0 

0

Apr.

0

5.1

0

0 

0

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

May

£££. Maxi"-

0 0 

0 0 

0 0

130.7 10

0 0

19!? 10 ""

5.1 5.1 

0 0 

0 0 

0 0 

0 D 

0 0

25.0 10

June

Minimum

0

0

0

0

0 

0 

0 

0 

0 

0

0

July Aug. Sept.

.. __ Runoff in Mean acre-feet

0 0 

0 0 

0 0

.36 259

0 0 

.01 .4 

.64 39 

.17 10 

0 0 

0 0 

0 0 

0 0 

0 0

.O"7 4S

ak above base, 

e-height record
SAN GABRIEL RIVER BASIN

East Fork San Gabriel River near n amp Bonita, Calif.

Location.- Water-stage recorder, lat. 34°14'12", long. 117°48'30", in SE^ sec. 22, T. 2 N., 

 K. 9 W., 1,000 feet upstream from mouth of Graveyard Canyon, 2.5 miles upstream from 

confluence with West Fork, and 2.5 miles west of Camp Bonita.

Records available.- December 1932 to September 1948. 

Average discharge.- 15 years (1933-48), 89.2 second-feet.

Extremes.- Maximum discharge during year, 210 second-feet Apr. 29 (gage height, 10.05 

reet); minimum dally, 6.9 second-feet Sept. 7, 8.

1932-48: 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 

Hedger, Chief engineer.

?eles County Flood Control District, through H. E.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

Z

3

4

5

6

7

R

9

10

11

12

13

14

15

1R

17

1R

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13

12

12

12

12

12

12

13

13

13

14

14

15

15

15

15

14

14

14

14

14

14

14

14

13

13

13

13

14

14

14

Nov.

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

15

15

15

15

15

14

14

14

14

14

14

~

Dec.

14

14

14

36

50

28

25

21

20

19

18

18

18

18

18

18

18

18

18

18

18

18

17

17

17

18

18

18

18

18

17

Jan.

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

16

16

16

17

17

17

17

16

16

16

16

16

16

17

Feb.

17

17

17

17

40

30

26

24

23

21

21

20

20

20

20

20

21

23

24

25

25

26

27

27

26

25

25

26

26

-

-

Month

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

Calendar year 1947 ......................

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

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

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

Bater year 1947-48 ......................

Mar.

24

24

23

23

23

23

22

22

21

21

21

21

24

34

31

28

32

30

30

30

28

27

26

38

42

36

34

34

34

35

33

Apr.

33

35

50

67

57

52

46

42

40

47

49

46

44

42

42

46

47

47

47

47

46

46

44

42

40

40

44

51

133

74

-

Secondfoot-days

425

615

14,620

395

246.5

7,809.1

May

57

54

51

49

49

47

49

46

44

42

40

40

40

40

39

39

37

37

36

35

34

32

31

31

30

30

30

30

29

29

29

Maximum

50

250

9.6

133

June

30

33

30

29

28

26

24

24

24

23

23

23

22

21

21

21

21

20

20

19

19

19

18

18

17

17

17

16

16

15

Minimum

 14

12

6.9

6.9

July

16

16

16

16

15

15

14

14

14

14

14

14

13

12

12

12

12

12

12

12

11

12

12

12

11

10

10

10

10

1111

Aug.

11

10

10

10

10

10

10

10

10

10

9.6

9.6

9.3

9.3

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.3

9.3

9.3

9.3

9.0

9.0

9.0

9.0

9.0

8.6

Mean

19.8

40.1

21 8

8.22

21.3

Sept.

8.2

7.6

7.3

7.3

7.3

7.3

6.9

6.9

7.3

7.3

7.6

7.9

7.9

8.2

8.6

9.0

9.3

9.6

9.3

9.3

9.0

9.0

9.0

9.0

9.0

8.6

8.2

8.2

8.2

8.2

Runoff in 

acre- feet

1,220

29,000

580

489

15,490
3AN GftBRIEL RIVER BASIN 97

Location.- Water-stage recorder, lat. 34°10'10", long. 117°53'16", in SWi sec. 13, T. IN.,

K. 1U W., 1 mile downstream from Morris Dam and 3 miles northeast of Azusa. Altitude

of gage, alout 870 feet. 

Drainage area.- 211 square »niles. 

Keeoras avalla'ble.- 1894 to September 1948. 

Average Qiscnarge.- 52 years (1896-1948), 115 second-feet. Average combined discharge of

river ana diversions, adjusted for storage and evaporation in Morris Reservoir and San

Gabriel River flood-control reservoirs 1 and 2, 53 years (1895-1948), 165 second-feet. 

Extremes.- Maximum discharge during year, 1,320 second-feet June 2 (gage height, 3.30

reet); no flow during most of year.

1894-1948: Maximum discharge, 65,700 second-feet Mar. 2, 1938, by computation of

flow over spillway at Morris Dam; no flow for several months in each year 1894-1936,

1940, 1941, 1947, 1948. 

Remarks - Records good. Flow regulated by San Gabriel flood-control reservoirs 1 and 2,

ana by Morris Reservoir of Metropolitan Water District of Southern California. 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.- Eighteen discharge measurements furnished by Los Angeles County Flood Control

IJlstrlct, through H. E. Hedger, chief engineer. 

Revisions (water year).- W 961: 1941.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

Month

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

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

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

Calendar year 1947.....

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

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

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

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

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

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

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

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

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

Water year 1947-48. ....

Jan. Feb.

Secondfoot-days

0

0

0

6,221.7

0

0

0

256.7

135.0

6,244.9

0

0

0

6,636.6

Mar.

Maximum

0

0

0

1,500

0

0

0

29

5.3

1,170

0

0

0

1,170

Apr.

0

o

0

13

27

28

28

29

29

24

.3

.8

.6

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.5

.3

.7

.9

-

Minimum

0

0

0

0

0

0

0

0

3.8

0

0

0

0

0

Hay

5.3

5.3

5.3

5.3

5.3

5.3

5.3

4.9

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

Mean

0

0

O

17.0

0

0

0

8.56

4.35

208

0

0

0

18.1

June

3.8

' 732

1,170

1,120

1,020

1,050

1,080

68

.8

a. 2

a.l

o

0

0

0

0

0

0

0

0

0

b

0

0

0

0

0

0

0

0

L_

July Aug. Sept.

Runoff in acre-feet

San Gabriel San Gabriel River

River and Aausa canalt

0 1,560

0 1,570

0 2,460

12,350 58,050

0 2,040

0 3,190

0 3,610

509 5,640

268 3,860

12,390 2,300

0 1,310

0 835

0 728

13,170 29,100

t Combined runoff of river 

Res

T uomoinea runorr or river and Azusa Canal, adjusted for storage and evaporation ratioIn ±11 Morris PIUI-I-IO 

:servoir and San Gabriel River flood-control reservoirs 1 and 2 using record furnished by Metropolitan Water District of Southern California. These figures of runoff are equivalent to combined 

records of San Gabriel River and Southern California Edison Co.'s canal as published from 1894 to 

1933.

a No gage-height record; discharge computed on basis of 1 discharge measurement, 1 »bservatlon 

of no flow, engineer's notes, interpolation, and records of release from Morris dam.
SAN GABRIEL RIVER BASIN 

San Gabriel Paver below Santa Fe Dim, near Baldwin Park, Calif.

LoeatJon.- Water-stage recorder, lat. 34°06'40", long. 117°58'20", at stilling basin of

;tlet of Santa Fe Da";, 0.3 -nile north of Arrow Highway and 1.5 miles north of

Baldwin Park, Los Angeles County. Datum of gage, 400.00 feet above mean sea level

discharge during year, 822 second-feet June 4; no flow most of year

2-48: Haximjir, discharge, 6,700 second-feet Jan. 24, 1943; no flow during

several morJ hs of eafh veai

Remarks.- Records excelled above 150 second-feet and fair below. Flow regulated by 

San "A oriel flood-control reservoirs 1 and ?. by Morris Reservoir of Metropolitan 

Water District of southern ^alifornla, and during high discharge by Santa Fe flood- 

"ontrcl basin. Canal diversions upstream. Records include 7,840 acre-feet diverted 

to Rio Hondo as shown in *he monthly table.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30

31

Oct Nov. Dec. Jan.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber . . ...... .........

lendar ji

ary . . . 

uary . 

h

ear 194'

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

ter year 1947-48 . . ... ...

Sec 

foot

Feb

-days

0 

0 

0

1,568.8

0 

0 

0 

0 

0 

4,094 

0 

0 

0

4,094

Mar

Maximum

0 

0 

0

1,560

0 

0 

0 

0 

0 

809 

0 

0 

0

809

Apr. May

Minimum

0 

0 

0

0

0

0 

0 

0 

0 

0 

0 

0 

0

0

June

0 

67 

784 

809 

726

741 

773 

194 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

O

0 

0 

0 

0 

0

0 

0 

0 o

0

Mean

0 

0 

0

4.30

0 

0 

0 

0 

o

136

0 

0 

0

11.2

July Aug. Sept.

Runoff in acre-feet

San Gabriel Diversion to 

River Rio Hondo

0 0 

0 0 

0 0

3,110

0 

0 

0 

0 

0 

8,120 

0 

0 

0

0

0 

0 

0 

0 

0 

7,880 

0 

0 

0

8,120 7,880

t Records furnished by Los Angeles County Flood Control District, through H. D. He^'.ger. chief 

engineer.
19?--4d- Maxlrur discharge, 5",70U second-fee* Kar. 2, 1938; no flow for periods

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

0

3.0

6.0

9.9

17

24

31

39

45

48

48

47

46

45

45

45

47

46

45

44

43

42

40

<" !

42

4£

43

46

41

41

Jan.

43

43

43

45

48

48

48

47

44

41

43

41

40

40

40

38

36

40

40

38

28

16

11

12

17

'0

14

12

12

13

17

Feb.

26

19

8.5

7.8

21

42

25

22

21

20

21

27

28

28

29

31

32

31

31

32

32

35

32

33

32

32

32

32

28

-

Month

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

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

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

Calendar year 1947 ............ ....... .

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

28

28

18

11

10

8.8

8.5

10

19

16

3.4

2.8

5.4

13

9.7

8.2

17

15

20

16

14

14

28

29

16

18

24

23

25

26

Apr.

26

26

34

37

28

31

38

26

26

28

29

27

30

29

32

28

25

26

25

32

21

20

19

17

17

9.7

7.8

9.2

12

11

-

Secondfoot-days

0

0

1,143.9

9,554.9

1,018

790.3

500.8

706.7

168 . 9

0

0

0

0

4,328.6

May

13

15

17

18

16

16

17

14

12

10

8.0

5.7

4.9

2.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

0

48

1,200

48

42

29

37

0

0

0

0

48

June

Minimum

0

0

0

0

11

7.8

2.8

7.8

0

0

0

0

0

0

July Aug.

Mean

0

0

36.9

26.2

32.8

27.3

16.2

23.6

5.45

0

0

0

0

11.8

Sept.

Runoff in 

acre-feet

0

0

2,270

18,950

2,020

1,570

S93

1,400

335

0

0

0

0

8,590
Location.- Water-stage recorder, lat. 33°48'40", long. 118°05'30", in Los Alamitos Grant,

 at Spring Street Bridge, 1.5 miles west of Los Alamitos, Orange County. Altitude of

gage,,about 22 feet. 

Records available.- October 1936 to September 1948 in reports of Geological Survey; .

 1927-36 inTiles of Los Angeles County Flood Control District. 

Average discharge.- 21 years, 33.6 second-feet. 

Extremes.- Mo now during year.

 ITJ36-48: Maximum discharge, 27,300 second-feet (estimated) Mar. 2, 1938; no flow

during several months of each year. 

Remarks.- No flow since Mar. 25, 1947. Figures for calendar year 1947 are as follows:

 Total second-foot-days, 3,626.8; maximum daily, 2,100 second-feet; minimum dally, no

flow; mean, 9.94 second-feet; runoff, 7,200 acre-feet. 

Cooperation.- Records furnished by Los Angeles County Flood Control District, through

H. K. Meager, chief engineer.

West Fork San Gabriel River at Camp Rincon, Calif.

Location.- Water-stage recorder, lat. 34°14'30", long. 117°51'50", near center of sec. 19, 

 T. y N., R. 9 W., 0.2 mile upstream from Camp Rincon, 0.5 mile downstream from North 

Pork San Gabriel River, and 6 miles downstream from San Gabriel dam No. 2.

Drainage area.,- 102 square miles.

Records available.- October 1927 to September 1948.

Average discharge.- 21 years, 77.6 second-feet.

Extremes.- Maximum discharge during year, 329 second-feet Apr. 29 (gage height, 8.71 feet); 

minimum daily, 3.0 second-feet Sept. 14.

1927-48: Maximum discharge, 34,000 second-feet (estimated) Mar. 2, 1938; no flow at 

times in 1928, 1929.

Remarks.- Plow partly regulated by San Gabriel dam No. 2, 6 miles 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 1947 to September 194E

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

.9

.9

.6

.3

.O

.3

.6

.9

8.2

8.2

8.6

8.6

8.6

8.9

8.9

8.9

8.9

9.2

9.2

8.9

8.6

8.6

8.6

8.6

8.6

8.6

8.6

8.6

8.9

8.9

8.9

Nov.

8.9

9.2

9.2

8.9

9.2

8.9

8.9

8.9

9.2

9.2

9.2

9.2

9.2

9.2

9.2

ib

10

10

10

10

10

10

10

10

10

10

10

10

10

10-

Dec.

11

12

12

18

46

32

21

17

16

15

16

16

16

16

16

16

16

16

15

15

15

15

15

15

16

16

16

15

17

19

15

Jan.

15

15

15

15

15

14

13

13

13

13

13

13

13

17

16

16

16

15

15

17

17

17

17

17

17

17

17

17

17

17

17

Feb.

17

17

17

17

89

87

58

42

32

26

24

25

25

24

23

25

26

26

26

26

26

26

25

25

24

24

24

26

2ff

-

Month

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

Calendar year 1947 ......................

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

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

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

Water year 1947 48 ......................

Mar.

24

24

24

23

22

22

21

21

20

20

19

19

27

41

36

30

35

33

33

32

28

26

26

48

50

48

44

42

42

41

39

Apr.

37

33

58

61

46

42

41

41

38

41

41

38

33

30

29

29

28

28

27

27

27

27

26

26

26

26

26

43

135

58

-

Secondfoe t-days

532

14,209.4

960

125.7

6,276.0

May

44

36

33

36

44

41

41

41

38

38

33

25

23

21

21

21

20

21

22

22

21

19

19

19

19

19

19

18

18

18

18

Maximum

10

46

353.

8 2

6.3

135

June

18

20

19

18

17

16

15

15

15

15

15

15

15

14

14

13

12

12

12

11

11

11

11

11

10

10

9.7

9.2

8.9

8.2

-

Minimum

11

7.0

3.0

3.0

July

8.2

8.2

8.2

7.9

7.9

7.9

7.6

7.6

7.6

7.3

6.6

6.6

6.0

6.0

6.0

5.8

5.5

5.5

5.5

6.3

6.3

6.0

6.0

5.8

5.5

5.8

5.5

5.2

5.0

4.8

4.8

Aug.

5.0

.8

.8

.0

.0

.8

.8

.8

.8

.8

.8

.0

.6

.3

.8

.2

.0

.0

.8

.8

.8

.8

.5

.2

.2

.4

.0

.5

5.2

Mean

17.2

38.9

5 09

4.19

17.1

Sept.

6.3

5.0

4.5

4.5

4.2

4.2

4.0

4.0

3.8

3.5

3.5

3.3

3.2

3.0

3.2

3.5

3.8

3.8

4.0

4.2

4.5

5.0

4.8

4.5

4.5

Runoff in 

acre-feet

1,060

28,190

249

12,450
SAN GABRIEL RIVER BASIN 101

Rogers Creek near Azusa, Calif.

Location.- Water-stage recorder, lat. 34°09'55", long. 117°54'20", In NW^NW^- sec. 23, T. 

1 N., R. 10 W., 0.5 mile upstream from mouth and 2.5 miles north of Azusa. Altitude 

of gage, about 800 feet.

Drainage area.- 6.4 square miles.

Records available.- May 1916 to September 1917 (discharge measurements only), October 1917 

to September 1948.

Average discharge.- 31 years, 3.31 second-feet.

Extremes.- Maximum discharge during year, 13 second-feet Apr. 29 (gage height, 3.01 feet); 

no now during several periods.

1917-48: Maximum discharge, about 2,600 second-feet Apr. 7, 1926; no flow during 

part of each year.

Remarks.- Records fair. One small diversion above station for irrigation.

Cooperation.- Eight discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

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

28

29

30

31

Oct.

0 

0 

0

0

0

0

0

0

0

0

0 

0

0

0

0

0 

0

0 

0

0

0

0

0 

0 

0

0

0 

0

0

Nov.

I eO.Ol

.1 

.1

I e.05

J

.

1

y e.02

,

I e.03

1

J

-

Dec.

J. eO.03

a.l

2.2

1.3

.6

.5

.4

.3

.3 

.3

.3

.3

.1

| e.05

' a

.2

.2

.2

.2

.2 

.2

.2

.2 

.2

.2

.2

.2

Jan.

0.1 

i e.06

}

.1

.1

.2

.2

.2

.2

.1

I e.04

j

.08

.1

.1 

.1

.1

.1

.1

I e.07

J

.1 

.1

.1

.2

.2

Feb.

0.2 

.2 

.2

.1

4.4

2.9

1.8

1.1

.7

.6

.5 

.4

.3

.1

.1

I e.06

' .1 

.1

.1

.1

.1

.3 

> e.05

1

.1 

.2

.3

-

-

Month

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

Calendar year 1947 ......................

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

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

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

Water year 1947-48 ......................

Mar.

0.3 

.3 

.2

.2

.2

. 2

.2

.2

.2

.2

I e.04

. 6

2.8

2.7

1.3 

1.7

1.1 

1.0

1.1

.8

.6

.3 

3.0 

2.9

1.5

. 1.2 

.9

.8

.8

.5

Apr.

0.3 

.3 

3.8

3.1

1.8

2.2

1.5

1.2

1.1

1.3

1.5 

1.3

1.1

.9

.7

.7 

.6

.5 

.3

.3

.3

.3 

.2 

.2

.2

.2 

.3

4.9

1.3

-

Secondfoot-days

9.44

454.73

0

96.14

May

1.0 

.8 

.5

.3

.3

.2

.2

.3

.2

.2

.2 

.2

.1

.1

\ e.03

L e.06

 e.08

.1 

.1

}

e.07

Maximum

2.2

16

0

4.9

June

0.1 

.2 

.2

.1

.1

]

I e.04

|

J

0 

0

, e.Ol

0

0

0

> e.03

I e.02

0

0

Minimum

-

0

0

0

July Aug.

Mean

.305

1.25

0

.263

Sept.

Runoff in 

acre-feet

19

904

2 3

0

190

Peak discharge (base, 55 sec.-ft.).- No peak above base.

a Ho gage-height record: discharge computed on basis of records for Fish Creek near Duarte.

e Daily discharge less than 0.1 second-foot.

889419 0-50-8
102 3AK GABRIEL RIVER EASIH

Location.- Water-stage recorder and broad-crested weir, lat. 34°10'00", long. 117°55'25", 

 in SWfew-j- sec. 15, T. 1 N. , R. 10 W., 0.8 mile upstream from mouth of canyon dnd 3 

3 miles northeast of Daarte. Altitude of gage, atout 1,000 feet (from topographic

Extremes.- Maximum discharge during year, 28 second-feet Apr. 28 (gage height, 1.42 feet); 

minimum daily, less than 0.1 second-foot during July, August, September.

1916-48- Maximum discharge, atout 2,130 second-feet Apr. 4, 1925; no flow during 

periods in 1919-21, 1924, 1929-30.

 les County Flood Control

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.2

.2

.2

a. 2

a.l

.1

.1

.2

.2

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.4

.4

.4

.4

Nov.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.6

.5

.4

.5

.6

.6

.6

.6

.5

.5

.4

.4

.4

.4

-

Dec.

0.6

.6

.6

1.5

3.7

1.8

1.0

.8

.8

.8

.8

.7

.7

.7

.7

.7

. 5

.6

.7

.7

.7

.7

.6

. 7

.7

.7

.7

.6

.7

.6

.6

Jan.

0.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

_ g

.r

.e

Feb.

0.6

.6

.7

.7

7.4

3.8

1.6

1.3

1.1

1.1

.9

.9

.8

.8

.3

.8

'.1

.7

.8

.9

.9

Month

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

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

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

Calendar year 1947 .................. ...

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

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

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

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

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

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

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

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

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

Water year 1947-48 ......................

Mar.

0.8

.3

.8

.8

.8

.8

.8

.8

.7

.7

7

.7

2.4

4.6

3.E

1.5

2.6

1.7

1.6

1.7

1.4

1 3

1.2

6.5

4.4

2.5

2.0

1.7

1.5

1.5

1.4

Apr.

1.2

I.I

6.6

E.I

3.2

3.2

2.3

2.0

1.7

3.0

2.6

2.2

1.8

1.6

1.2

1.1

1.1

1.0

1.1

1.0

.1.0

1.3

1.2

.8

.8

.8

.8

3.8

8.8

3.2

Secondfoot-days

9.8

13.5

26.6

630.4

19.5

J3.3

54 2

66.8

29.0

14.6

1.16

.72

.55

269.73

May

2.3

2.0

1.6

1.2

1.1

1.0

1.0

1.0

1.0

1.0

1.0

.9

.8

.8

.7

.7

.6

.7

.8

.8

.7

.7

.6

.6

.7

.7

.8

.8

.8

.8

.8

Maximum

0.4

.6

3.7

17

.7 

7.4

6.5

8.8

2.3

1.1

.2

_

8.8

June

0.3

1.1

.8

.7

7

.6

.5

. 5

. 5

.5

.5

.5

.5

, 5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.3

.3

. 3

.3

.3

.2

-

Minimum

0.1

.4

.6

.1

.6

.6

' .7

.6

.2

_

-

July

0 2

.1

. \

.1

> e.06

. e.02

Aug.

 eO.02

\ e.04

1

> e.02

Mean

0.32

.45

.86

1.73

. 63 

1.15

1.75

2.23

.94

. 49

.037

.023 

.018

.737

Sept.

. eo.Ol

V g Qg

e.04

e.02

-

Runoff in 

acre-feet

19

27

53

1,250

39 

66

132

58

29

2.3

1.4 

1.1

536

Peak discharge (base, 60 sec.-ft.).- No peak abov 

a No gage-height record; discharge Interpolated, 

e Dally discharge less than 0.1 second-foot.
Location.- Water-stage recorder and broad-crested weir, lat. 34°03'45", long. 117°4iJ '35 1 ' 

in SW^-NEj sec. 25, T. 1 N., R. 9 W., at mouth of San Dimas Canyon, 0.7 mile downstream 

from San Dimas Dam and 3 miles northeast of San Dimas. Altitude of gage, about 1,245 

feet.

Records available.- April to September 1916 (discharge measurements only), December 1916 

to September 1948 .

Extremes.- Maximum discharge during year, 55 second-feet July 27 (gage height, 0.52 feet); 

minimum daily, less than 0.1 second- foot on many days.

1916-43: Maximum discharge, 5,000 second-feet Mar. 2, 1938, from records of release 

at San Dimas Dam and computed inflow between dam and gaging station; no flow for several 

months during most years prior to 1937.

Cooperation - Fifty-four discharge measurements furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer.

Revisions (water year).- W 1061: 1938(K).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

«

> eo.04

1

e.03

. e.04

> e.02

Nov.

> eo.03

> e.02

> e.03

-

Dec.

\ eo.04

I

> e 0^

f

J

,

> e.O3

1

\

j

> e.07

)

1

y e.08

I

J

1 0. t

Jan.

.

j

V eO.05

J

\

j

> e . O5

f

>

|

\ e.07

f

|

> e.08

. *

2.1

2.4

3.4

3.0

1.8

1.8

1.8

1.8

Feb.

1.

1.

1.

1.

2.

1.

_

-

Month

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

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

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

Calendar year 1947 ................. ....

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

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

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

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

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

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

July

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

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

Water year 1947-48 .... .................

Mar.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.1

.2

.2

.2

.2

.2

.3

.4

.3

.3

.2

.2

.2

.2

Apr.

0.2

.2

.4

.4

. 3

.4

.4

'.2 t 3

.2

2

.2

.2

.1

.1

.1

.2

.2

.2

.2

- .2

.2

.2

.2

.2

.2

.2

.2

.4

.3

Secondfoot-days

0 97

. 80

1.65

820 . 48

19.81

13.3

5.3

7.0

46.9

84.1

93 4

84.8

24.60

382.63

May

0.2

.2

.2

. 1

.1

.1

.2

.1

.1

.2

.2

.1

.1

2.0

2.7

2.7

2.7

2.6

2.6

2.6

2.6

2.5

2.6

2.6

2.5

2.5

2.4

2.3

2.3

2.4

2.4

Maximum

0.1

21

3 4

2 . 3

.4

.4

2.7

3.0

4.6

4.7

1.5

4.7

June

2.5

2.5

2.7

2.8

2.8

2.8

2.8

2.8

2.8

3.0

3.0

3.0

3.0

3.0

2.8

2.7

2.8

2.8

2.8

2.8

2.7

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

Minimum

-

0.1

.1

.1

.1

2 5

2 . 6

1.3

-

July

2.8

2.8

2.7

2.7

2.7

2.

2.

2 . £

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

4.1

4.6

4.6

4.5

4.5

Aug.

4.5

4.5

4.6

4.7

4.7

4.2

2.8

2.8

3.0

2.8

2.7

2.6

2.8

2.8

2.7

2.6

2.6

2.6

2.4

2.3

2.3

2.3

2.3

2.0

2.0

1.8

1.7

1.6

1.4

1.3

1.4

Mean

0.031

.027

.053

2.25

639

.46

.17

.23

1.51

3.01

2.74

.820

1.05

Sept.

1.4

1.5

.4

,4

.5

.5

.5

.5

.5

. 5

. 5

.4

.4

.2

.0

1.0

.8

. 5

.2

.1

.2

.1

.1

.1

e.05

-

Runoff in 

acre-feet

1.9

1.6

3.3

1,630

39

26

11

14

93

167

185

49

759

Daily discharge less than 0.1
104 SAN GABRIEL RIVER BASIN

Dalton Creek near Glendora, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°09'30", long. 117°48'40", 

in center of sec. 21, T. 1 N., R. 9 W., 0.6 mile upstream from mouth of canyon, 1.7 

miles downstream from Big Dalton Dam, and 2.6 miles northeast of Glendora. Altitude 

of gage, about 1,170 feet (from topographic map}.

Drainage area.- 7.5 square miles.

Records available.- December 1919 to September 1948.

Average discharge.- 28 years (1920-48), 1.22 second-feet.

Extremes.- Maximum discharge during year, 23 second-feet Feb. 5 (gage height, 1.17 feet); 

no flow 'during several months.

1919-48: Maximum discharge, about 850 second-feet Mar. 2, 1938, from record of release from Big Dalton Reservoir; no flow during several months each year.

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

Klow regulated by Big Dalton flood-control dam. Glendora Irrigating Co. diverted zero 

acre-feet during water year at diversion dam 1.5 miles above station.

Cooperation.- Twenty-four discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Eedger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30 

31

Oct. Nov. Dec.

0

0 

0

0

> e.04

.6

1

I e.05

I

1.8

1.3

!^ e.04

0

0

0 

I e.03

Jan.

L

V e0.02

j

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0 

0

o

Feb.

0

0 

0

0

1.6

a. 3

a. 2

a.l

a.l

a.l

a.l

a.l

a.l

ae.08

 ae .07

,

I ae.05

' -

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

 ay. ........................................

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

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

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

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

Water year 1947-48 ......................

Mar.

>

laeO.05

1

> e.04

j

1

V

> e.03

f

I

L e.07

.1

.1

.2

.1

.2

.2

.1

.1

.1

.3

.2

.1

.1

.1

.1 

.1 

.1

Apr.

0.1

.1 

.3

.3

.2

.3

.3

.2

.2

.2

.1

.1

.1

.1

, e.07

.2

L e.05

Secondfoot-days

0

0

4.54

112.50

.08

3.78

2.91

3.81

.61

.05

0

0

0

15.78

May

, eO.03

> S.O2

> e.Ol

Maximum

o

0

1.8

11

1.6

.3

.3

0

0

0

1.8

June

I

eO.Ol

0

0

O

0

0

0

0

0

o

0

0

o

0

0

0

0

o

0

0

0

0

0

0

0 

0-

Minimum

0

0

0

0

0

0

_

_

0

0

0

0

o

July Aug.

Mean

0

0

.146

.308

.003

.130

.094

.127

.020

.002

0

8

0

.043

Sept.

Runoff in 

acre-feet

0

0

9.0

223

.2

7.5

5.8

7.6

1.2

.1

0

0

0

31

a No gage-height record; discharge computed on basis of 1 discharge measurement, weather records, 

and normal recession curve.

e Dally discharge less than 0.1 second-foot.
SAN GABRIEL RIVER BASIN 105 

Little Dalton Creek near Glendora, Calif.

Location.- Water-stage recorder, lat. 34°10'05", long. 117°50'15", in SE^ sec. 17, T. 1 

N., K. 9 W., 0.8 mile upstream from mouth of canyon and 2.5 miles northeast of Glendora. 

Altitude of gage, about 1,330 feet.

Drainage area.- 2.7 square miles.

Records available.- December 1938 to September 1948. January 1929 to November 1938 at 

site u.B mile downstream -(drainage area, 3.3 square miles).

Average discharge.- 10 years (1938-48), 0.98 second-foot.

Extremes.- Maximum discharge during year, 4.0 second-feet Apr. 3 (gage height, 0.40 feet); 

no now part of year.

1929-48: Maximum discharge, 960 second-feet (estimated) Mar. 2, 1938; no flow for 

several periods in each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. K. Hedger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

6

4

b

6

7

8

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.

0

0

0

0

.3

.5

.2

.09

.07

.05

.06

.06

.05

.04

.04

.04

.04

.04

.04

.04

.02

.04

.01

0"0

0

0

.04

.02

-

Month

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

Calendar year 1947 ......................

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

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

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

Water year 1947 48 ......................

Mar.

o.ol

.01

0

0

o

o

0

0

o

0

o

o

.01

.3

.5

.3

.3

.1

.2

.2

.1

.1

.1

.5

.4

.2

.2

.3

.3

.3

.3

Apr.

0.2

.3

1.6

1.1

.8

1.1

.8

.6

.5

.7

.6

.6

.5

.5

.3

.2

.3

.4

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.7

.3

-

Secondfoot-days

o

90.6

0

20.78

May

0.2

.2

.1

.1

.07

.07

.08

.06

05

.01

.01

.01

o

0

0

0

0

0

o

0

0

o

0

o

0

0

o

o

o

0

0

Maximum

0

3.2

0

1.6

June

Minimum

o

0

0

0

July Aug.

Mean

0

.25

0

.057

Sept.

Runoff in 

acre-feet

o

ISO

, 

0

41
106 SAN GABRIEL RIVER BASIN

San Jose Creek near Whlttler, Calif.

Location.- Water-stage recorder, lat. 34°01'25", long. 118°02'05", In Paso de Bartolo 

Grant, at Workman-Mill Road Bridge, 3 miles north of Whittier. Altitude of gage, 

about 230 feet.

Drainage area.- 85.2 square miles.

Records available.- January 1929 to September 1948.

Average discharge.- 19 years, 9.43 second-feet.

Extremes. - Maximum discharge during year, 160 second-fett L'ec. 6 (gage height, 2.16 feet);

minimum daily, 0.6 second-foot July 5, 6.

1929-48: Maximum discharge, 13,100 second-feet Jan. 1, 1934; no -low at times.

1 strict, through H. E.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Oct.

1.8

1.8

1.8

1.8

1.8

1.8

2.0

2.2

2.2

2.4

2.4

2.2

1.8

1.8

1.5

1.6

17 ' 1.5

181 l.R

19

20

21

22

23

24

25

26

27

28

29

30

31

1.8

l.c

2.0

Z.i)

2.0

2.0

2 . cj

2.0

1.8

1.8

2.2

2.4

2.4

Nov.

2.4

2.4

2.2

1.8

1.8

2.0

1.8

1.8

1.8

1.8

2.0

1.8

1.8

1.8

1.8

1.6

1.6

2.0

1.6

1.4

1.4

1.4

1.2

1.2

1.2

1.4

1.2

1.2

1.4

1.6

-

Dec.

1.6

1.6

1.6

2.4

9. 3

21

2.0

2.0

2.0

2.0

3.1

2.7

2.9

3.1

3.1

3.3

3.3

3.8

3.3

3.8

4.0

3.8

3.8

4.0

4.0

5.5

3.8

3.8

3.5

4.0

3.8

Jan.

4.0

4.0

4.0

4.2

4.2

4.5

4.5

4.2

4.0

3.8

3.8

3.8

3.3

3.5

3.3

0.1

3.8

4.0

4.0

4.5

4.5

4.2

4.2

4.0

4.0

3.8

3.5

7.3

3.8

4.0

3.8

Feb.

3.8

3.8

3.8

4.0

13

12

4.7

3.1

2.7

3.3

3.3

3.3

3.3

3.5

3.8

3.3

3.8

3.8

3.5

4.2

3.8

3.5

3.3

3.5

4.0

4.L,

4.2

4.0

4 5

_

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947 48 ......................

Mar.

3.5

3.5

3.1

2.9

2.9 

3.5

3.3

3.5

4.0

4.0

4.0

4.0

4.2

9.0

7.8

5.8

12

5.2

6.8

10

2.7

1.8

3.5

18

9.1

2.7

1.6

1.8

1.8

2.7

3.5

Apr.

3.8

4.5

7.1

11

3.1

5.0

4.0

4.2

4.0

4.5

5.8

3.8

4.0

4.0

3.8

3.8

4.2

3.8

3.1

3.3

3.5

4.0

4.2

4.2

3.8

2.7

3.3

3.3

6.8

4.5

-

Secondfoot-days

60.4

50.4

120.4

1,497.0

121

125 3

iszlz

131.1

so!?

42.8

37.0

37.0

1,009.1

May

3.8

3.3

2.4

3.1

2.9

1.8

3.3

4.7

4.0

3.3

4.0

4.0

3.3

2.7

3.1

1.4

1.6

2.2

2.2

2.4

1.8

1.4

1.6

1.0

1.6

2.7

3.1

3.1

2.2

1.0

1.2

Maximum

2.4

2.4

21

21

4.5

13

18

11

4.7

3.1

2.2

2.0

2.4

21

June

1.8

2.4

1.4

1.2

1.4

1.0

1.4

1.4

1.8

2.0

2.2

2.2

2.0

1.8

2.0

3.1

1.6

1.4

1.6

1.6

1.0

2.4

2.4

2.4

1.6

1.2

1.4

.8

.8

1.4

Minimum

1.6

1.2

1.6

1.2

3.1

2.7

1.6

2.7

1.0

. 3

. 6

.8

.6

July

1.6

1.4

1.6

1.2

.6

.6

1.0

1.6

1.2

1.0

1.2

.8

1.0

1.4

2.0

2.0

1.4

2.0

1.8

2.2

1.8

1.6

1.8

1.6

1.4

1.0

1.0

1.0

1.4

1.6

1.0

Aug.

l.i

1.2

.8

1.4

1.8

1.2

1.8

1.2

.8

1.0

1.2

1.4

1.2

1.0

1.0

1.0

.8

.8

.8

1.0

1.0

1.0

1.2

1.2

1.4

1.4

1.4

1.6

2.0

1.2

1.0

Mean

1.95

I.o8

3.88

4.10

3.92

4 32

4^91

4.37

iie9

1.19

1.23

2.76

Sept.

1.0

.8

1.4

1.4

1.6

1.8

2.0

2.4

1.6

1.8

1.6

1.6

1.6

1.6

1.6

1.0

.8

1.2

1.4

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

Runoff in 

acre-feet

120

100

239

2,970

241

249

302

260

159

101

85

73

73

2.000
SAN GABRIEL RIVER BASIN 107

Coyote Creek near Artesia, Calif.

Location.- Water-stage recorder, lat. 35°50'45", long. 118°03 1 30", in Los Coyotes Grant, 

 on Del Amo Street Bridge, 1.8 miles southeast of Artesia, Los Angeles County. Altitude of gage, about 35 feet.

Drainage area.- 110 square miles.

Records available.- October 1939 to September 1948 in reports of Geological Survey; December I9a« to September 1939 (weekly discharge measurements only prior to January 1930) 

in files of Los Angeles County Flood Control District.

Average discharge.- 18 years (1930-48), 8.84 second-feet.

 Extremes.- Maximum discharge during year, 23 second-feet Dec. 13 (gage height, 4.00 feet); 

no now on many days.

1930-48: Maximum discharge, 4,190 second-feet Feb. 6, 1937 (gage height, 10.1 feet); 

no flow at times.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through H. E. 

Meager, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.2

1.6

2.0

2.2

1.8

1.9

1.6

1.8

1.9

1.9

2.2

1.9

Nov.

1.0

1.1

2.2

2.6

1.4

1.4

3.0

1.3

1.6

2.6

2.1

1.9

2.0 1.8

1.1 1.7

1.2

1.5

2.2

1.7

1.2

1.0

2.2

1.4

1.0

1.3

1.8

.9

.9

.8

.5

.3

.5

1.4

.9

1.3

1.2

.7

.8

.7

1.5

2.0

1.9

1.8

2.1

2.2

1.7

2.2

2.2

-

Dec.

1.9

2.7

3.0

3.1

3.8

4.9

5.4

4.0

3.5

3.2

3.6

5.5

9.3

4.9

4.9

4.7

4.5

5.1

4.4

4.6

5.0

4.2

4.7

4.6

4.3

4.0

3.8

3.7

3.7

3.7

3.5

Jan.

3.3

3.3

3.3

3.2

3.1

3.1

3.0

3.2

3.3

3.5

3.6

3.8

4.0

4.1

4.3

2.9

2.8

2.8

3.2

3.5

3.4

3.4

3.4

1.9

2.1

1.8

1.4

1.5

1.6

1.8

2.3

Feb.

2.7

3.3

5.6

5.5

6.3

7.6

6.3

5.7

5.0

5.0

5.1

5.2

5.6

4.7

4.7

4.4

4.3

3.5

3.3

3.3

3.8

4.0

4.0

3.1

2.3

2.4

3.4

3.0

3.6

-

-

Month

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

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

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

Calendar year :; ~ ... .. ... .. ......

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

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

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

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

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

June ............... , . . ... .......

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

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

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

Water year 1947-43 .... .. . ... . ....

Mar.

3.7

3.4

3.7

3.6

3.3

3.1

3.7

3.6

2.1

1.1

.8

.9

I."

5.3

6.7

6.5

7.0

7.3

6.5

6.5

6.9

6.3

5.3

6.2

7.7

6.7

5.3

5.0

4.9

4.9

4.9

Apr.

4.8

4.6

4.3

4.8

3.8

3.7

3.4

2.3

2.6

3.1

2.8

2.7

2.8

1.3

2.8

6.2

3.6

3.0

3.3

3.7

2.4

1.6

1.4

1.4

2.2

2.0

1.3

.5

.4

.2

-

Secondfoot-days

51.5

50.3

132 2

766.1

91.9

126.7

144.8

83.0

25 . 4

9.7

18 . 6 

23.0

2.0

759.1 -\

Hay

0.8

3.2

2.9

2.4

.9

.7

.8

1.1

1.0

.9

1.1

1.4

.9

.6

.6

.6

.9

1.1

.9

.1

.1

.2

.2

.3

.3

.3

.3

.3

.3

.2

Maximum

2.2

9 5

9.3

4.3

7.7

6 . 2

3.2

1.0

1.0

1.0

.5

9.3

June

0.2

.2

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.3

.4

.6

.7

.9

1.0

1.0

1.0

1.0

1.0

1.0

Minimum

1.0

.7

1.9

.1

1.4

2 5

.B

.2

0

0

.2

.5

0

0

July

1.0

1.0

1.0

.9

.8

.7

.6

.5

.5

.5

.5

..4

.4

.4

.4

.4

.4

.3

.3

.2

.2

.2

.3

.5

.6

.7

.9

1.0

1.0

1.0

1.0

Aug.

1.0

1.0

1.0

1.0

1.0

1.0

.9

3

 7

.8

.5

.5

.5

.6

.7

.8

.9

1.0

1.0

1.0

.9

.8

.7

.6

.5

.5

.5

.5

.5

.5

.5

Mean

1.66

1 . 68

4.26

2.10

2 . 96

4.37

4.67

2.77

. 82

. 32

.60

.74

.07

2.07

Sept.

0.5

.5

.4

.3

.2

.1

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Runoff in 

acre-feet

102

100

262

1 , 520

182

251

287

165

50

19

37

46

4.0

1,500
108 SAN GABRIEL RIVER BASIN

Brea Creek below Brea Dam, near Fuller-ton, Calif.

Location.- Water-stage recorder, lat. 33°53'15", long. 117°55'30", 0.2 mile downstream

 rrom area Dam, east of U. S. Highway 101, 1 mile north of Fullerton, Orange- County.

Datum of gage is 197.70 feet above mean sea level (levels by Corps of Engineers).

Drainage area.- 23.4 square miles

Records available.- January 1942 to September 1948.

Extremes.- Maximum discharge during year, 4.1 second-feet Dec. 5 (gage height, 0.90 feet); 

no now Aug. 1-4, 31.

1942-48: Maximum discharge, 655 second-feet Feb. 29, 1944 (gage height, 5.10 feet); 

no flow during parts of most years.

Remarks.- Records good. Flow regulated by Brea Dam. 

Cooperation.- Gage-height record furnishfd by Corps of Engineers. 

Revisions (water year).- W 1041: 1944(M).

Discharge, in second-feet, water year October 1947 to September 1948

Day

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

2?

23

24

25

26

27

28

29

30

31

Oct.

0.03

.05 

.1

.1

.04

.07

.2

.1

\ .1

.08

.08

.06

.08

.1

.1

.07

.05

Nov.

0.05

.07 

.06

.1

.1

.07

.08

.07

.06

.05

.05

.06

.06

.06

.05

.05

.04

.05

.07

.07

.06

.07

.05

.04

.05

.05

.05

.05

.05

.05

-

Dec.

0.08

.Oo 

.Oc

.2

.5

.2

.06

.05

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.03

.03

.03

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

Jan.

0.02

.02 

.02

.02

.02

.02

.02

.03

.03

.02

.02

.03

.02

.02

.02

.03

.03

.03

.03

.02

.02

\ .02

Feb.

.

> 0.02

/

.5

.4

.05

.04

.03

.03

.02

.02

.02

.02

.03

.02

.02

.02

.02

.04

.04

.03

.03

.04

.07

.08

.07

.08

.08

-

-

Month

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

Calendar year 1947 ......................

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

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

Water year 1947-48 ......................

Mar.

0.05

.05 

.04

.03

.03

.05

.04

.04

.03

.03

.05

.05

.1

.09

.05

.05

.5

.1

.1

.07

.05

.05

.05

.4

.1

.07

.05

.05

.05

.06

.05

Apr.

0.06

.05 

.5

.06

.02

.02

.01

.01

.01

.05

.02

.01

.01

.01

.01

.01

.01

.01

.01

.02

.02

.03

.04

.02

.02

.02

.02

.1

.1

.03

-

Secondfoot-days

2.81

1.88

39.09

1.60

19.36

May

0.02

.03 

.02

.03

.02

.02

.04

.05

.05

.04

.1

.09

.05

.03

.03

.03

.02

.03

.05

.1

.2

.2

.02

.06

.04

.05

.06

.07

.05

.05

.06

Maximum

0.2

.5

.5

.2

.5

June

0.08

.2

.2

.1

.07

.05

.05

.08

.04

.03

.02

.03

.03

.04

.02

.07

.05

.02

.01

.01

.02

.02

.03

.02

.02

.02

.02

.02

.01

.02

-

Minimum

.02

0

.01

0

July

0.02

.02 

.03

.03

.01

.01

.01

.02

.02

.02

.02

.03

.03

.03

I'

.03

.02

.02

.01

.01

.01

.02

.1

.02

.01

Aug.

0

0 

0

0

.02

.03

.03

.01

.01

.05

.05

.09

.04

.1

.04

.03

.1

.2

.04

.02

.02

.01

.01

.01

.01

.02

.02

.02

.01

.01

0

Mean

.061

.107

.053

.053

Sept.

0.01

.03 

.08

.08

.01

.01

.01

.01

.01

.02

.02

.01

.01

.03

.02

.05

.08

.2

.07

.1

.2'

.1

.2

.1

.05

.02

.02

.02

.01

.02

'-

Runoff in 

acre feet

3.7

78

3.2

59
SAN GABRIEL RIVER BASIN 109

Brea Creek at Fuller-ton, Calif.

Location (corrected).- Water-stage recorder, lat. 33°52'25", long. 117°55'30", In San Juan 

Cajon de Santa Ana Grant, between Maiden Avenue and U. S. Highway 101 at Pullerton, 

Orange County. Altitude of gage, about 250 feet. Gage moved from Ford Avenue Bridge 

to present site in 1940.

Drainage area (corrected).- 26.2 square miles at site used since 1940.

Records available.- October 1930 to September 1948.

Average discharge.- 17 years (1930-38, 1939-48), 1.46 second-feet.

Extremes.- Maximum discharge during year, 30 second-feet Dec. 5 (gage height, 0.30 foot); 

no now during most of year.

1930-48: Maximum discharge, 3,700 second-feet Mar. 14, 1941 (gage height, 5.45 

feet); no flow during most of each year.

Cooperation.- Records furnished by Orange County Flood Control District, through J. A. 

Bradley, flood-control engineer.

Discharge, in seoond-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

0

0

0

.6

2.0

O

O

0

0

0

0

0

0

D

0

0

0

0

O

0

0

O

0

0

O

O

O

0

0

0

O

Jan. Feb.

o

0

0

o

1.8

.6

0

0

0

0

0

0

o

0

0

0

0

0

o

o

0

0

0

0

0

0

0

0

0

-

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

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

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

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

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

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

Water year 1947 48 ......................

Mar.

0

0

o

o

0

0

0

0

0

0

o

0

.3

0

0

0

2.7

0

o

0

o

0

0

1.8

0

0

0

0

0

0

0

Apr.

0

o

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

8

0

0

-

Secondfoot-days

0

0

2.6

15 . 8

0

2 . 4

4.8

1.9

0

.9

O

0

0

12.6

May

Maximum

0

0

2.0

2.0

O

2.7

1.1

0

.9

O 

0

0

2.7

June

0

Q

.9

0

0

o

0

0

0

0

0

0

0

0

0

o

0

0

o

0

0

0

0

0

0

0

0

0

0

0

-

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

July Aug.

Mean

0

0

.08

.04

0

. 08

.15

.06 

0

.03

0

0

0

.03

Sept.

Runoff in 

acre-feet

0

0

5.2

32

0

4.8

9.5

0

1 . 8

O 

0

0

25
aear Brea , Ual'f.

Local loii.- Water-::.* age recur,ler, Lat . SS^sSMU'1 , long. 117°53'05", on outlet 'hai,nel jf

 Fu-Uei'Loi, Sarr:, 1.6 ::i n es southeast of Brea, Ora;.ge Cour.ty. Alt 3 t-.de of gage, abjin

2CO feet (fror ^ jpograiJii^ tap;. 

Drainage area.- 3.05 square nilles. 

Records' available.- October "941 to September 1948. 

Extremes.- No 1'low during year.

 TF51-18; Kaxitrur, discharge, 298 second-feel Mar. 16, 1943 (gage height, 3.80 feet);

r.o fujw ffiosi of ea h "-ear. 

Tenarks.- Xo flow since Jan. 5, 1947. 7 lev; regulated D,v Fallerton Dan. Figures for

 .--L-tlendv \'car 1947 are as follows: Total second-foot-da/s, 3.53; fiaximui;, daily d'j- 

:harge, 2.6 second-feet, minimair. daily, no flDW; i.iean, 0.10 se -or.d-feet; r.inoff, 7.U 

acre-feet;.

cooperation.- Gage-height record furnished b: .'oros of Engineers.

Location.- Water-stage recorder, lat. 33°52' 20" / long. 117°54'20", in San Juan Ca.ion de 

Santa Ana Grant, on Raymond Avenue Bridge, at Fullerton, Orange County. Altitude of 

gage, about 170 feet.

Drainage area.- 6.2 square mi-les.

Records available.- October 1939 to September 1948 in reports of Geological Survey. October 1931 to September 1935 at site at Cypress Avenue (drainage area,4.3 square miles) 

and October 1935 to September 1939 in files of Orange County Flood Control District.

Average discharge.- 13 years (1935-48), 0.82 second-foot.

Extremes.- Maximum discharge during year, 11 second-feet Oct. 23 (gage height, 0.37 foot); 

no flow during most of year.

1935-48: Maximum discharge, 1,600 second-feet Mar. 14, 1941 (gage height, 10.05 

feet); no flow for several months each year.

Cooperation.- Records furnished by Orange County Flood Control District, through J. A. 

Bradley, flood-control engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

?fi

27

28

29

30

31

Oct.

0

0

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

o

o

0

.8

0

.6

0

0

0

.3

0

o

0

0

Nov. Dec. Jan.

o

0

0

o

o

0

0

0

0

0

o

0

o

0

.4

.6

0

o

0

0

0

0

o

0

0

o

0

0

0

0

0

Feb.

o

0

.4

.4

z.z

1.4

.2

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 1947 ......................

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

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

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

Water year 1947 48 ......................

Mar.

0

0

0

0

0

.2

.2

.2

.4

0

0

0

.5

.4

0

0

1.5

0

.2

0

0

0

0

1.0

0

0

0

0

0

0

0

Apr.

0

o

1.5

0

0

0

0

0

0

.2

0

0

0

0

0

0

0

0

0

.4

0

0

0

0

0

0

0

.4

.2

0-

Secondfoot-days

0

6.7

0

15.6

May

0

O

0

0

0

0

.2

.4

0

.2

0

0

0

0

0

o

0

0

.2

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

3.6

0

2.2

June

Minimum

0

0

0

0

July Aug.

Mean

0

.02

0

.04

Sept.

Runoff in 

acre-feet

0

13

5 4

0

31
LOS ANGELES RIVER BASIN

Lus Angeles River at Sepulveda Dam, Calif.

Location.- Water-stage recorder, lat. 34°09'50", long. 118°28 1 10", on outlet channel of 

Sepulveda Dam, in Ex Mission San Fernando Grant, 0.2 mile upstream from Sepulveda 

Boulevard in city of Los Angeles, and 2 miles southwest of Van Nuys, Los Angeles County. 

Altitude of gage, about 675 feet (from topographic map).

Drainage area.- 155 square miles.

Records available.- May 1943 to September 1948.

Extremes.- Maximum discharge during year, 300 second-feet Mar. 24 (gage height, 3.38 feet); 

minimum daily, 4.5 second-feet Sept. 20, 24-27.

1943-48: Maximum discharge, 4,800 second-feet Feb. 22, 1944 (gage height, 7.90 

feet); minimum daily, 4.5 second-feet Sept. 20, 24-27, 1948.

Remarks.- Records fair. Storage of imported water in San Fernando Reservoir, and diversions above station. Flow regulated by Sepulveda flood-control dam.

Cooperation.- Gage-height record and 56 discharge measurements furnished by Corps of Engineers.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5.9

5.7

7.6

5.9

fS.5

f5.5

a5.5

f5.5

5.7

5.6

5.6

6.0

5.9

6.1

6.5

6.7

6.1

6.3

6.1

6.1

6.0

5.9

5.6

5.5

5.6

5.7

5.9

6.0

6.1

6.4

Nov.

6.0

5.7

5.6

6.4

6.0

5.9

5.7

6.0

5.9

5.9

5.7

5.7

5.7

5.9

6.4

6.1

6.0

6.0

6.0

5.9

5.7

5.7

5.9

6.1

6.1

5.9

6.0

5.9

6.1

-

Dec.

6.0

6.0

6.0

16

13

7.2

6.4

6.3

6.3

6.1

6.0

5.9

6.0

6.0

6.0

6.1

6.1

6.3

6.3

6.3

6.5

6.1

6.4

6.5

6.4

6.4

7.2

6.5

6.1

6.4

Jan.

7.2

7.2

6.5

6.4

6.6

7.1

55

55

55

55

55

55

55

53

32

13

8.0

7.5

7.0

7.0

7.3

40

54

54

54

54

54

54

54

54

Feb.

53

52

51

62

58

54

54

54

54

55

44

11

8.1

7.8

7.5

7.2

7.0

7.0

6.8

6.7

6.5

6.3

6.8

6.8

8.8

15

13

7.2

_

-

Month

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

Calendar year 1947 ......................

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

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

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

Water year 1947 48 ......................

Mar.

6.8

7.5

7.0

7.3

7.2

7.2

7.2

7.0

7.2

7.2

7.2

7.7

10

10

7.6

12

8.c

7.6

7.6

7.0

6.8

6.7

65

22

8.6

7.8

7.5

7.5

7.3

7 .0

Apr.

7.0

7.0

7.6

7.O

6.8

6.8

7.0

7.0

7.0

7.O

6.8

6.8

6.7

6.4

6.7

6.8

6.7

May

6.7

6.4

6.4

6.0

6.0

6.0

6.0 <i.l .: 

5.9

6.4

5.7

5.7

5.9

.5

5.5

5.5

6.7 5.7

6.7

6.5

6.8

6.7

6.4

6.4

6.8

7.O

8.0

9.5

e.*

-

5.7

5.6

6.0

6.1

6.4

6.0

6.1

6.0

6.0

June

6.3

6.8

6.4

6.3

6.1

6.4

6.3

^ . 5

b.3

6.4

6.7

6.5

6.5

6.5

6.4

5.9

6.1

6.7

6.0

5.9

6.1

6.0

6.0

6.0

6.0

6.0

6.0

5.7 5.6

July

5.9

5.9

5.7

5.4

5.2

5.5

5.4

5.7

5.6

5.9

6.4

7.O

6.0

6.4

6.1

6.4

6.5

5.7

5.6

5.2

5.4

5.6

5.9

5.5

5.6

5.9

6.0

6.0

'.7 3.3 ' 6.O

6.0

forays »--

211.6 16

5,919.6 103

152.3 5.9

3,795.2 65

Minimum

5.9

5.5

4.5

4.5

Aug.

6.1

6.5

6.1

5.6

5.5

6.0

5.6

5.5

5.1

a5.2

a5.2

a5.3

a5.3

a5.4

a5.4

5.5

5.5

5.5

5.6

5.6

5.5

5.9

6.3

6.3

5.7

5.6

5.6

5.5

5.1

5.2

Mean

6.83

16.2

5.08

10.4

Sept.

5.6

5.9

5.9

5.4

5.1

5.4

5.5

5.4

5.4

5.4

5.7

5.0

4.9

5.0

5.0

5.0

4.7

4.9

4.5

4.7

4.8

4.7

4.5

4.5

4.5

4.5

4.8

4.9

5.0

Runoff In 

acre-feet

420

11,750

302

7,530

a Incomplete gage-height record; discharge Interpolated, 

f Computed on basis of partly estimated gage-height record.
112 LOS ANGELES RIVER BASIN

Los Angeles River at Los Angeles, Calif.

Location.- Water-stage recorder, lat. 34°04'50", long. 118°13'35", near Figueroa Street, 

Los Angeles, 0.1 mile upstream from Arroyo Seco.

Drainage area.- 510 square miles.

Records available.- October 1929 to September 1948.

Average discharge.- 19 years, 64.8 second-feet.

Extremes.- Maximum discharge during year, 4,900 second-feet Mar. 24 (gage height, 3.15 

 feet); minimum daily, 3.6 second-feet on many days in November.

1929-48: Maximum discharge, 67,000 second-feet Mar. 2, 1938; no flow for several 

periods in earlier years.

Cooperation- Records furnished by Los Angeles County Flood Control District, through H. E. 

Hedger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17in

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

.2

' .2

.2

.2

.6

.2

.9

.9

. .9

.9

.2

' .2

' .2

.2

.2

.2

. .2

' .2

 .2

.2

.2

.6

.6

.2

.2

.6

.6

.9

.9

.9

.9

Nov.

4.9

4.2

3.9

3.9

3.9

3.6

3.9

3.9

3.6

3.9

3.9

4.2

4.2

4.2

4.6

4.2

4.2

3.6

3.6

3.6

3.6

12

5.6

4.2

4.2

4.9

4.6

4.2

4.6

4.6

-

Dec.

8.4

4.9

4.9

81

228

99

29

8.4

5.6

5.9

5.9

6.4

6.4

6.9

6.9

8.4

8.4

9.0

9.0

9.5

10

10

10

10

10

10

10

11

10

1011

Jan.

10

12

11

9.0

14

15

14

21

56

47

52

57

57

59

57

56

25

16

10

12

15

16

17

43

42

43

45

45

45

46

43

Feb.

42

43

43

45

309

209

88

81

63

45

54

54

48

9.0

13

13

16

16

16

16

16

15

15

15

- 15

15

19

29

16

_

-

Month

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

Calendar year 1947 ......................

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

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

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

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

Water year 1947-48 ......................

Mar.

13

15

17

16

16

19

16

16

19

19

21

20

127

149

84

43

178

56

65

39

32

32

34

498

106

52

42

38

42

42

40

Apr.

42

45

55

39

40

46

38

39

39

64

38

37

38

35

37

37

38

39

40

37

33

35

35

35

35

33

9.5

49

101

34

-

Secondfoot-days

132.5

663.9

8,085.5

161.0

7,512.0

May

21

4.6

5.2

6.9

7.4

9.0

10

10

10

10

10

9.5

10

9.5

8.4

7.9

7.9

8.4

9.0

8.4

7.4

6.9

6.9

6.9

7.4

8.4

9.5

9.0

9.0

7.9

8.4

Maximum

12

228

228

30 9

6.4

498

June

12

22

10

9.5

9.0

8.4

9.0

21

7.9

7.9

7.4

7.4

5.9

6.4

6.9

6.4

6.9

6.9

6.9

5.9

5.6

6.4

6.4

7.4

7.9

8.4

7.4

7.4

7.4

7.4

-

Minimum

3.6

4.9

1.6

9 5

4.2

3.6

July

6.9

6.9

6.9

6.4

5.6

5.6

5.9

5.6

5.9

4.9

4.9

5.6

6.4

6.9

S.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

7.4

7.4

6.4

5. a

7.4

5.9

4.2

4.9

4.9

Aug.

5.6

6.9

7.9

7.4

6.9

7.4

6.9

5.6

4.9

5.2

4.9

4.9

4.9

4.9

4.9

4.6

4.9

5.2

5.6

5.9

5.9

5.6

5.6

5.9

6.4

6.9

6.9

6.4

5.9

5.6

5.6

Mean

4.42

21.4

22.2

47 5

5.37

20.5

Sept.

5.9

5.9

5.9

6.4

5.9

4.9

4.6

4.9

5.2

5.2

5.2

5.2

5.2

5.9

6.4

5.9

5.9

5.9

5.6

5.2

5.2

5.2

5.2

4.9

4.6

4.2

4.9

5.2

5.2

5.2

-

Runoff in 

acre- feet

263

1,320

16,040

319

14.890
LOS ANGELES RIVER BASIN 113

Los Angeles River near Downey, Calif.

Location.- Water-stage recorder, lat. 33°57'05", long. 118°10'25", in San Antonio Grant, 

at t'irestone Boulevard Bridge, 1 mile upstream from Rio Hondo and 2.5 miles west of 

Downey, Los Angeles County. Altitude of gage, about 100 feet.

Drainage area.- 614 square miles.

Records available.- March 1928 to September 1948.

Average discharge.- 20 years, 102 second-feet.

Extremes.- Maximum discharge during year, 8,980 second-feet Mar. 24 (gage height, 6.95 

feet); minimum daily, 10 second-feet July 5.

1928-48: Maximum discharge, 79,700 second-feet Mar. 2, 1938; no flow during parts 

of some years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. K. Hedger, chief engineer.

Discharge,'in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

22

24

26

22

16

19

22

21

21

22

24

19

21

21

22

22

24

21

18

18

19

18

21

22

24

21

21

21

24

24

19

Nov.

21

19

18

19

19

18

18

18

16

16

19

19

21

19

21

16

16

18

18

16

15

29

21

16

18

19

18

18

21

21

-

Dec.

99

21

15

217

1,090

228

88

52

36

28

22

20

20

19

22

25

28

28

30

30

30

31

32

30

22

22

28

26

28

30

32

Jan.

28

28

28

25

31

38

36

36

59

64

56

64

64

70

73

67

49

38

38

32

30

28

26

47

49

59

64

70

76

81

81

Feb.

73

81

84

81

1,000

465

152

133

124

88

100

96

92

59

47

45

41

36

32

31

30

28

26

25

28

30

30

41

38

-

-

Month

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

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

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

Calendar year 1947 ......................

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

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

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

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

MAV may. .......................................

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

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

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

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

Water year 1947-48 ......................

Mar.

32

32

34

36

32

34

31

34

38

36

36

34

291

350

231

88

582

124

225

133

92

88

92

1,280

307

147

129

120

112

104

100

Apr.

96

92

187

129

124

173

112

112

104

138

88

78

73

67

62

56

54

52

52

52

52

54

49

47

45

49

41

96

320

96

-

Secondfoot-days

659

561

2,429

17,071

1,535

5^004

2,750 

848

680

612

596

527

19,337

May

76

34

25

30

31

28

30

24

19

25

26

26

26

25

20

24

30

28

28

25

25

25

25

25

25

25

25

26

25

22

20

Maximum

2629'

1,090

1,090

31

1,000

1 , 280

320

76

47

24

22

20

1,280

June

32

47

26

25

24

20

22

30

25

22

24

22

17

18

19

20

20

20

19

15

18

22

22

24

24

20

16

19

24

24

-

Minimum

16

15

15

14

25

25

31

41

IS

15

10

17

15

10

July

24

24

20

15

10

13

17

19

19

17

15

17

20

22

24

24

22

18

20

22

24

22

20

22

19

22

24

22

17

20

18

Aug.

17

19

20

22

20

20

19

19

17

18

19

19

19

20

20

20

22

22

20

19

20

20

19

20

19

18

18

18

18

18

17

Mean

21.3

18.7

78.4

49 . 5

108

161

91.7

27.4

22.7

19.7

19.2

17.6

52.8

Sept.

17

17

17

17

17

17

17

17

17

17

17

17

18

18

18

18

19

19

19

19

20

20

20

19

18

17

16

15

15

15

-

Runoff in 

acre-feet

1,310

1,110

4,820

33,880

3,040

' _.,

^'4. SO

1 ,' 680

1 350

l',210

1,180

1,050

38,350
114 LOS ANGELES RIVER BASIN

Los Angeles River at Long Beach, Calif.

Location.- Water-stage recorder, lat. 33°47'25", long. 118°12'20", at State Street Bridge 

at Long Beach, Los Angeles County.

Records available.- December 1928 to September 1948. 

Average discharge.- 19 years (1929-46), 158 second-feet.

Extremes.- Maximum discharge during year, 9,310 second-feet Mar. 24 (gage height, 6.45 

feet); minimum daily, 19 second-feet July 28 to Aug. 1.

1928-48: Maximum discharge, 99,000 second-feet Mar. 2, 1938; no ilow at times in 

1929, 1930, 1934.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. .hi. Hedger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

29

'9

29

28

28

28

27

27

26

26

27

28

28

29

30

31

30

22

28

27

26

25

24

24

25

25

26

26

27

27

27

Nov.

26

25

24

23

22

21

21

22

22

23

23

24

24

24

24

24

24

24

24

24

28

36

28

24

24

24

24

24

24

24

-

Dec.

120

54

24

81

1,540

500

123

53

40

30

25

27

30

32

34

36

39

41

40

39

38

37

36

35

30

24

27

29

32

34

37

Jan.

33

31

31

28

35

42

39

47

64

69

72

76

80

81

87

80

74

87

81

54

48

41

48

56

63

71

78

86

93

93

93

Feb.

93

93

93

93

1,050

756

148

138

128

100

102

97

90

84

77

71

64

58

51

44

39

36

35

36

40

47

47

47

47

-

-

Month

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

Calendar year 194? ......................

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

Water year 1947 -48 ......................

Mar.

46

46

46

46

48

46

46

47

47

47

47

47

350

684

288

114

1,030

154

115

331

130

96

100

1,350

869

306

200

154

136

128

122

Apr.

120

110

611

490

118

633

160

115

110

131

162

92

89

82

75

75

74

73

72

72

71

70

72

74

76

78

80

82

525

136

-

Secondfoot-days

728

3,267

22,790

876

26,627

May

78

53

40

34

32

31

31

31

31

31

31

31

31

32

32

33

34

35

35

36

36

36

36

37

37

37

37

37

36

36

35

Maximum

36

1,540

1,540

93

33

1,540

June

35

34

33

33

32

32

31

31

30

30

30

30

29

29

29

29

29

29

29

29

29

29

29

29

29

28

28

27

26

25

-

Minimum

21

24

18

35

22

19

July

24

24

24

24

23

23

23

23

23

24

26

28

29

30

32

32

32

31

31

30

30

30

28

26

24

22

20

19

19

19

19

Aug.

19

20

20

20

20

21

22

23

24

25

26

27

26

25

24

23

22

21

20

20

20

20

20

21

21

21

21

21

21

21

22

Mean

27.3

24.3

105

62.4

131

29.2

72.8

Sept.

22

22

24

26

28

30

32

32

32

32

32

32

32

32

32

32

32

32

30

28

26

24

24

25

27

28

30

32

33

33

-

Runoff in 

acre feet

1,440

6,480

45,210

3,810

1,740

52,820
LOS ANGELES RIVER BASIN

Pa^oima Creek near San Fernando, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°20'02", long. 118°23'55", 

 in SE-jNE-f sec. 24, T. 3 N., R. 15 W., 500 feet dwonstream from Pacoima Dam, 600 feet 

upstream from mouth of canyon, and 4 miles northeast of San Fernando.

Drainage area.- 28.2 square miles.

Records available.- March 1916 to September 1948.

Average discharge.- 31 years (1917-48), 8.90 second-feet.

Extremes.- Maximum discharge during year, 6.4 second-feet June 12 (gage height, 1.46 feet); 

no flow during several months.

1916-48: Maximum discharge, 2,440 second-feet Mar. 3, 1938; no flow for several 

months in most years.

Remarks.- Flow regulated by Pacoima flood-control dam.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through H. E 

Hedger, chief engineer.

Revisions (water years).- n 861:

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.4

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.3

.3

.3

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Nov.

0.3

.3

. 3

.2

.1

.1

.1

0

0

0

cr

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

u -

Dec. Jan. Feb.

Month

October. ...................................

November. ........................ .........

December ........................... .......

Calendar year 1947 ......................

January .................................. .

February ...................................

March. .......................... ..........

April ......................................

May........................................

June .......................................

July..... ..................................

August .....................................

September. ..............................

Water year 1947-48 . ....................

Mar. Apr.

Secondfoot-days

11.8

1.4

0

1,695.5

0

0

0

0

0

123.5

£5 . 9

4^0

2.3

168.9

May

Maximum

0

.3

rj

230

0

0

6.4

5 . 8

.5

.2

6.4

June

0

0

0

0

0

0

0

0

0

4.3

6.4

6.4

G'.Z

6.2

6.2

6.0

5.9

5.9

5.8

5.7

5.8

5.7

5.6

6.0

5.8

5.6

5.4

6.0

6.3

-

Minimum

0.3

0

0

0

0

0

0

0

0

0

0

0

July

5.8

5.1

2.2

1.5

1.2

.8

.6

.6

.4

0

0

.1

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

,4

.4

.4

.4

.4

.4

.4

Aug.

0.4

.4

.5

.4

.4

.3

.3

.3

.3

.3

.3

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

0 38

. 05

0

4.65

0

0

0

0

4. 12

.84

.13

.08

.46

Sept.

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

.2

-

Runoff in 

acre-feet

23

2 . 8

0

3,360

0

0

0

0

0

245

51

7.9

4.6

334
116 LOS ANGELES RIVER BASIN

Tujunga Creek near Colby Rancn, Calif.

Location.- Water stage recorder, lat. 34°18'10", long. 118°09'35", just downstream from 

Lucas Creek, 400 feet upstream from crossing of Edison Road, 3.5 miles west of Colby 

Ranch, Los Angeles County, and 4 miles upstre'am from Big Tujunga Dam.

Drainage area.- 66.9 square miles.

Records available.- October 1930 to September 1948.

Average discharge.- 18 years, 21.3 second-feet.

Extremes.- Maximum discharge during year, 140 second-feet Apr. 29 (gage height, 7.23 feet); 

minimum daily, 0.1 second-foot on many days.

1930-48: Maximum discharge not determined, probably occurred Mar. 2, 1938. A discharge of 14,800 second-feet occurred Jan. 23, 1943 (gage height, 15.40 feet); no flow 

parts of some years.

Cooperation - Records furnished by Los Angeles County Flood Control District, through 

H. EHeUger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

a

9

10

11

12

1.3

14

15

16

17

18

19

20

21

?.?.

23

24

25

26

27

28

29

30

31

Oct.

0.6

.7

.7

.6

.7

.8

.9

1.1

1.1

1.2

1.2

1.1

1.2

1.5

1.4

1.2

1.1

1.1

1.0

1.0

1.0

1.1

1.2

1.1

1.1

1.0

1.0

1.1

1.4

1.5

1.4

Nov.

1.2

1.2

1.1

1.2

1.2

1.1

1.2

1.2

1.4

1.2

1.2

1.4

1.4

1.4

1.4

1.5

1.5

1.5

1.5

1.4

1.4

1.5

1.5

1.5

1.5

1.5 1.5s

1.5

1.5

1.5

-

Dec.

1.9

2.0

1.8

5.2

10

5.4

3.9

3.4

3.1

2.9

2.7

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

Jan.

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.7

Feb.

2.7

2.9

3.1

3.1

18

13

7.0

5.6

5.4

5.4

4.8

4.4

4.1

4.1

4.1

4.1

4.1

4.6

4.6

4.4

4.1

3.9

3.9

3.3

3-6

3.6

3.8

3.8

3.9

-

-

Month

December. ..................................

Calendar year 1947 ......................

September. .................................

Water year 1947-48 ... .................

Mar.

3.3

3.8

3.6

3.6

3.4

3.4

3.4

3.4

3.6

3.4

3.2

3.2

5.5

9.4

7.4

6.1

9.4

7.4

6.6

7.0

6.1

5.8

5.6

12

13

9.0

7.4

7.0

7.0

6.6

6.1

Apr.

5.8

5.8

6.6

6.6

6.1

6.1

5.8

5.6

5.6

5.6

5.4

5.1

4.8

4.8

4.8

4.6

4.4

4.1

3.9

3.9

3.9

4.1

3.9

3.8

3.6

3.4

3.2

9.1

49

13

-

Secondfoot-clays

94.3

2,175.0

143 9

49 2

4.9

964.7

May

9.0

7.4

6.4

5.6

5.4

4.6

4.6

4.4

4.4

4.4

4.1

3.9

3.6

3.4

3.2

2.9

2.7

2.9

3.4

3.4

3.4

3.1

2.7

2.7

2.7

2.7

2.9

3.1

2.9

2.9

2.9

Maximum

1.5

10

54

.4

49

June

3.2

3.8

3.4

3.1

2.9

2.6

2.3

2.0

1.9

1.8

1.9

1.8

1.6

1.5

1.4

1.2

1.1

1.1

1.0

1.0

1.0

1.2

1.1

1.0

.9

.8

.8

.7

.6

.5

-

Minimum

0.6

1.1

1.8

.1

.1

.1

July

0.5

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Aug.

0.

.1

Mean

1.37

3.04

5.96

.16

2.64

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.4

.4

.4

.4

.3

.3

.2

.2

-

Runoff in 

acre feet

66

82

187

4,320

9.7

1,910
LOS ANGELES RIVER BASIN 117

Tujunga Creek near Sunland, Calif.

Location.- Water-stage recorder, lat. 34°17'55", long. 118 0 16'10", near center of sec. 32, 

T. 3 N. , R. 13 W. (unsurveyed), 0.2 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 1948.

Average discharge.- 31 years (1917-48), 32.1 second-feet.

Extremes.- Maximum discharge during year, 53 second-feet Feb. 5 (gage height, 7.05 feet); 

minimum daily, 0.7 second-foot Sept. 13-16.

1916-48: Maximum discharge, 50,000 second-feet Mar. 2, 1938; minimum, 0.1 secondfoot at times during summers of 1919, 1924, 1928-31.

Remarks.- Flow regulated by Big Tujunga 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. K. Hedger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

PR

27

2R

29

so

31

Oct.

5.7

5.8

5.7

5.5

5.7

5.7

6.0

6.0

5.8

5.7

5.5

5.8

5.8

S.8

5.7

5.7

5.7

5.5

5.3

5.5

5.5

5.8

6.2

6.7

6.4

6.2

6.2

6.2

6.2

6.2

6.0

Nov.

5.2

5.2

5.2

5.2

5.3

5.0

4.9

4.9

4.9

5.0

4.9

4.9

S.O

5.3

5.5

5.7

5.7

5.8

5.8

5.8

5. -8

5.7

5.5

5.5

5.3

5.3

S.3

5.3

5.5

5.5

-

Dec.

5.7

5.8

5.8

7.9

14

9.0

7.5

7.1

6.9

6.7

6.6

6.4

6.4

6.4

6.4

6.4

6.2

6.2

6.2

6.0

6.0

5.8

5.8

6.0

6.0

6.0

6.2

6.2

6.2

6.2

6.0

Jan.

6.2

6.4

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.0

5.8

5.8

5.8

5.8

5.8

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.2

6.0

6.0

6.0

6.0

5.8

Feb.

5.8

5.8

6.0

6.0

22

14

8.4

7.5

6.9

5.7

4.9

4.5

4.2

3.7

3.8

3.5

3.5

3.4

3.4

3.3

3.0

2.8

2.8

2.9

2.8

2.8

2.8

2.8

2.8

-

-

Month

December ...................................

Calendar year 1947 ......................

April ......................................

May. .......................................

September ..................................

Water year 1947-48 ......................

liar.

2.7

2.6

2.6

2.5

2.5

2.6

2.6

2.6

2.6

2.6

2.6

2.6

3.9

10

8.4

6.4

10

8.6

7 .5

7.3

S.9

6.7

6.6

13

11

8.2

6.9

6.2

5.7

5.2

4.9

Apr.

4.6

4.7

5.2

4.9

4.5

4.3

4.0

4.0

3.9

4.2

4.3

4.2

3.8

3.6

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.6

3.4

3.4

3.4

3.4

5.7

12

8.6

-

Secondfoot-days

206.0

4,221.3

233 1

33.0

2,340.4

May

6.9

6.7

6.4

6.2

5.8

5.5

5.3

5.2

4.9

4.9

5.0

6.9

7.3

7.9

8.2

8.2

8.4

8.6

8.8

9.0

8.8

8.4

8.6

8.6

8.6

9.0

9.4

9.4

9.2

9.2

9.0

Maximum

14

176

1.7

25

June

9.0

9.2

9.0

9.0

9.0

8.8

8.6

8.6

8.6

8.6

8.2

8.2

7.7

7.9

7.7

7.5

7.3

7.5

7.5

7.3

7.1

7.1

7.1

7.1

7.1

6.9

6.7

6.4

6.2

6.2

-

Minimum

5.7

4.0

.7

.7

July

6.2

6.2

6.0

6.2

6.2

6.0

5.8

5.8

6.0

5.8

6.0

6.0

6.0

13

25

25

24

24

23

23

21

14

13

13

13

13

13

13

12

12

Aug.

12

11

11

11

11

11

11

10

10

11

13

13

13

12

11

11

10

9.7

11

10

8.4

7.1

6.0

5.2

4.5

3.6

3.0

2.6

2.3

2.1

1.9

Mean

6.65

11.6

5 23

1.10

6.39

Sept.

1.5

1.2

1.1

1.1

1.0

1.0

.9

.9

.9

.9

.9

.8

.7

.7

.7

.7

.8

.9

1.1

1.2

1.3

1.5

1.7

1.6

1.5

1.5

1.4

1.3

1.2

1.0

-

Runoff in 

acre- feet

409

8,373

261

65

4,640

889419 O - 50 - 9
118 LOS ANGELES RIVER BASIN

<.j-f! Hansen Dam, Calif.

Location.- Water-stage recorder and sharp-crested weir, lap. 34°15 I 31", long. 118°23 I 11",

 at lower end of outlet structure of Hansen Dam, in Ex Mission San Fernando Grant, in 

city of Los Angeles, 3 miles southeast of San Fernando, Los Angeles County. Datum of 

gage is 963.29 feet above mean sea level, datum of 1929 (Corps of Engineers bench mark).

Drainage area.- 148 square miles.

Records available.- October 1940 to September 1948 in reports of Geological Survey. April

 19yy to September 1940 (fragmentary) and OctoDer 1940 to September 1948 in Annual 

Reports of Los Angeles County Flood Control District.

Extremes.- Maximum discharge during year, 34 second-feet Feb. 5 (gage height, 1.40 feet); 

no now on many days .

1940-48: Maximum discharge, 1,780 second-feet Jan. 23, 1943; no flow during parts 

of each year.

Remarks,- Records good. Storage and diversions above station. Flow regulated by Hansen 

1'lood-control dam.

Cooperation.- Gage-height record furnished by Corps of Engineers.

Discharge, in second-feet, water year October 1947 to September 1948

Day

5

6

7

8

9

10

11

12

13

14

Ib

16

1Y

18

19

20

21

22

23

24

2$

26

27

28

29

30

Oct. Nov. Dec.

0

0

0

0

.07

.03

.02

.01

.01

.01

.01

.01

0

J

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

Jan.

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

Q

n^

.01

.01

.01

0

.01

0

0

0

0

Feb.

0

0

.01

.05

2.3

.11

.05

.03

.02

.03

.02

.02

.02

.03

.03

.02

.03

.05

.05

.04

.02

.03

.01

.01

.01

.01

.01

.01

.01

Month

December . . .....:................. ...... .

Calendar year 1947 ......................

May. .......................................

September .................... .............

Water year 1947-48 ... ... ..............

Mar.

0.01

.01

.01

.01

.03

.02

.02

.02

.02

.02

.02

.01

.05

.04

.04

.04

.06

.02

.02

.02

.03

.02

.03

.08

.07

.03

.02

.02

.02

.02

Apr.

0.03.

.04

.03

.02

.01

.02

.01

,01

.01

.01

.01

.01

.01

.01

.01

0

.01

.01

.01

0

.01

.01

0

0

0

.02

.03

.r>2

-

Secondfoot-days

.17

2,448.77

0

4.61

May

0.01

.01

.02

.02

.02

.01

.01

.01

.01

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

.07

175

0

2.3

June

Minimum

0

0

0

0

July Aug.

Mean

.005

6.71

0

.013

Sept.

Runoff in 

acre-feet

.3

4,850

0

9.1
LOS ANGELES RIVER BASIN 119 

Little Tu.iunga Creek near San Fernando, Calif.

Location.- Water-stage recorder, lat. 34°16'30", long. 118°22'20", in Tajunga Grant, on 

Koothill Boulevard Bridge, 4 miles east of San Fernando, Los Angeles County.

Drainage area.- 21.0 square miles.

Records available.- December 1928 to September 1948.

Average discharge.- 20 years, 3.15 second-feet.

Extremes.- Maximum discharge during year, 16 second-feet Mar. 24 (gage heignt, 3.33 feet); 

no flow for man,.' montlis .

l°28-48: Maximum discharge, 8,500 second-feet Mar. 2, 1938; no flow for several 

months each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

o

0

o

0

.1

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan. Feb.

Month

October. ...................................

November. ........................ .........

December ........................ ..........

Calendar year 1947 ...................

January. ................................. .

February. ..................................

March ......................................

April. .....................................

May. .......................................

June .......................................

July. ............. ........................

August .....................................

September .................................

Water year 1947-48 ......... ....... ....

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

c

0

0

0

0

0

2.6

.6

0

0

0

0

0

0

Apr.

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.3

0-

Secondfoot-days

0

0

.1

58 . 7

0

0

3.2

1.3

0

0

0

0

0

4.6

May

Maximum

0

0

.1

6.4

o

0

2.6

1 .3

o

0

0

0

0

2.6

June

Minimum

0

o

0

o

0

0

o

0

0

0

0

0

0

o

July Aug.

Mean

o

0

.003

.16

0

0

.10

0

0

0

0

o

.01

Sept.

Runoff in 

ac 'e-feet

0

0

.2

116

0

0

6.3

0

0

0

0

0

9.1
120 LOS ANGELES RIVER BASIN

Haines Creek near Tujunga, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°15'50", long. 118°16'15", 

in NW-jrNWir sec. 17 T. ? N. , R. 13 W. , 0.5 mile upstream from mouth of canyon and 1.5 

miles northeast of Tujunga. Altitude of gage, about 2,430 feet (from topographic map).

Drainage area.- 1.2 square miles.

Records available.- l.f square miles. 917 to September 1934, October 1935 to September 

J.y4B.

Diversion: January 1931 to September 1948; some incomplete figures prior to 1931 

in files of Southern California Water Co.

Average discharge.- 30 years, 0.169 second-foot. Average combined discharge of creek ant? 

diversion, 16 years (1931-34, 1935-48), 0.525 second-foot.

Extremes.- Maximum discharge during year, 0.3 second-foot Feb. 5 (gage height, 1.32 feet); 

no 1'low during September.

1917-34, 1935-48: Maximum discharge, 265 second-feet Mar. 2, 1938 (gage height, 

4.6 feet); maximum gage height, about 11 feet Jan. 1, 1934 (caused by debris wave 

commonly called a mud flow); no flow at times during 1921, 1930, 1933, 1936, 1937, 

1938, 1948.

Remarks - Records fair. Southern California Water Co. has two infiltration gallery diversions upstream from station. Records of monthly diversion January 1931 to September 1947 are shown on the following pages.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

10-9

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

'eO.O03

.01 

.02 

a. 02 

a. 01

I e.006 

 e.003

Nov.

 eO.002 

> e.002

Dec.

>e0.002 

.02

> e.006 

> e.006

Jan.

>e0.006 

. e.008

Month f^®!

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1947

Feb.

0.01 

.01 

.01 

.01 

.07

.02 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01

.01

-days

0.153 

.060 

.188

......... 14.474

ember .....................

.218 

.36 

.39 

.33 

.226 

.150 

.046 

.031 

0

ter year 1947 48 .......... 2.132

Mar.

0.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01

.01

.01 

.01 

.01 

.05 

.04

,02

.01 

.01 

.01

.01 

.01

Maximum

0.02 

.02

.26

.07 

.05 

.04 

.01

0

.07

Apr.

0.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.04 

.01 

.01

May

0.01 

.01 

.01 

.01 

.01

. e.008 

i e.006

Minimum Mea

June

 eO.006 

> e.003

July

 eO.002 

> e.OOl

Aug.

 eO.OOl

, a. 001 

, e.OOl

Sept.

flunof-f in acre-feet

Creek verjftoni Total

0.005 0.3 9.9 10 

.002 .1 11 11 

.006 .4 11 11

.040 29 183 211

.007 .4 12 12 

0.01 .012 .7 13 14 

.01 .013 .8 12 13 

.01 .011 .7 13 14 

.007 .4 12 12 

.005 .3 11 11 

.001 .09 8.6 8.7 

000 

.001 .06 7.1 7.2 

7.0 7.0

0 .0059 4.2 128 151

t Diversion by Southern California Water Co. Records furnished by that company, 

a No gage-height record; discharge computed on basis of weather records and normal discharge 

recession curves, 

e Dally discharge less than O.01 second-foot.
LOS AWGELES ,RIVER BASIW

Monthly runoff of Haines Creek near Tunjunga, Calif., 1930-47

Month

November. ............

December. ............

Calendar year 1930.

March... .............

August ...............

September. ...........

Water year 1930-31. 

October 1931. ........

November. ............

December. ... ........

Calendar year 1931. 

January 1932. ........

February. ............

March. ...............

April. ...............

May...... ............

June .................

July... ..............

August ... ...........

September. ...........

Water year 1931-32. 

October 1932. ........

November. ............

December. ............

Calendar year 1932. 

January 1933. ........

February. ............

March. ...............

April. ...............

May. .................

June .................

July. ................

August. ..............

September. ...........

Water year 1932-33. 

October 1933.. .......

November. ............

December. ............

Calendar year 1933. 

January 1934. ........

February. ............

March. ...............

April. ............... 

May. .................

July. ................ 

August ............... 

September. ...........

Water year 1933-34.

Runoff In acre -feet

Creek

0.04 

.03 

.04

.82

.06 

.07 

.09 

.06 

.06 

.04 

.03 

.02 

.02

.56

.04 

.05

.31

.85

.31 

13.9 

9.16 

3.75 

1.29 

.24 

.06 

.03 

.02

29.2

.02 

.02 

.31

29.1

11.3 

3.17 

2.01 

.30 

.05 

.02 

.01 

0 

0

17.2

.12 

.16 

18.6

35.7

66.6 

12.8 

3.97 

.97 

.61 

.30 

.18 

.12 

.06

104

Diversiont

-

-

4.3 

5.7 

6.2 

6.0 

6.3 

6.2 

5.7 

6.6 

4.8

-

4.3 

3.9

4.1

64

5.4 

6.4 

21 

19 

12 

9.3 

6.7 

5.0 

4.3

101

3.9 

4.0 

3.7

101

4.2

15 

12 

12 

9.4 

7.4 

5.5 

4.4 

3.9

85

3.6 

3.4 

2.8

84

.9 

3.6 

6.7 

8.3 

7.7 

6.7 

4.4 

4.8 

4.0

57

Total

-

4.4 

5.8 

6.3 

6.1 

6.4 

6.2 

5.7 

6.6 

4.8

-

 4.3 

4.0 

4.4

65

5.7 

20 

30 

23 

13 

9.5 

6.8 

5.0 

4.3

130

3.9 

4.0 

4.0

129

16 

18 

14 

12 

9.4 

7.4 

5.5 

4.4 

3.9

102

3.7 

3.6 

21

119

68 

16 

11 

9.3 

8.3 

7.0 

4.6 

4.9 

4.1

162

Month

Idctober 1934.. .......

December. ...........

Calendar year 1934

September. ..........

Water year 1934-35

December. ...........

Calendar year 1935

Ms V

September. ...........

Water year 1935-36.

December. ............

Calendar year 1936.

July. ................

September. ...........

Water year 1936-37.

December. ............

Calendar year 1937.

April. ............... 

May. .................

June ................. 

July. ................ 

August ...............

Water year 1937-38.

Runoff In acre -feet

Creek

1

_

1

-

.31 

.36 

.31

-

.25 

8.15 

1.24 

.42 

.29 

.18 

0 

0 

0

11.5

.99

0 

14.8

26.3

2.74 

20.3 

40.1 

22.1 

3.39 

.42 

0 

0 

0

105

0 

0 

0

89.1

1.15 

25.9 

48 

45.5 

35.9 

20.7 

18.3 

7.60

06

Diversiont

3.6 

3.8 

3.2

58

4.8 

6.3 

6.2 

7.8 

7.3 

7.2 

7.8 

6.7 

6.4

71

4.0 

3.9 

6.6

75

6.2 

6.2 

8.2 

8.8 

7.7 

6.9 

5.4 

4.8 

3.6

72

3.3 

3.9 

3.9

68

4.8 

12 

15 

21 

21 

13 

7.5 

1.9 

1.7

109

1.5

1.4 

1.4

102

1.5 

1.5 -.6 

.05 

.03 

3.0 

16 

2.9

56

Total

:

_

1

-

4.3 

4.3 

6.9

_

6.4 

14 

9.4 

9.2 

8.0 

7.1 

5.4 

4.8 

3.6

83

4.3 

3.9 

19

95

7.5 

32 

55

43 

24 

13 

7.5

1.9 

1.7

213

1.5 

1.4 

1.4

190

2.6 

27 

349 

46 

36 

24 

34 

10

562

t Diversion by Southern California Water Co. Records furnished by that company.
Monthly runoff in Haines Creek near Tunjunga, Calif., 1930-47 Contin

Month

December. ............

Calendar year 1938.

July.................

September. ...........

Water year 1938-39.

December. ............

Calendar year 1939.

September. ...........

Water year 1939-40.

December. ............

Calendar year 1940.

April

July. ................

September. ...........

Water year 1940-41.

December. ............

Calendar year 1941.

September. ...........

Water year 1941-4?.

Calendar year 1942.

June

Runoff In acre-feet

Creek

3.2

3.0 19 -

531

13 

7.1 

13 

.5.4 

1.5 

.30 

.31 

.25 

2.5

69

.81 

.95 

1.7

46.8

27 

31 

11 

6.3 

2.2 

.64

.12 

.06

82

.18 

.30 

6.5

86

.61 

123 

185 

130 

62 

32 

25

12

593

7.0 

4.5 

11

R08

b.B 

2.3

1.7 

.8 

.4 

.2

40

.1 

.2 

.5

18

135 

107

16 

12 

4.2

September. ........... .6

Water year 1342-43. 370

Diverslont

22 

21 

14

109

18 

20 

19 

64 

26 

22 

14 

11 

9.2

260

4.0 

7.8 

13

228

12 

9.6 

9.6 

15 

16 

14 

9 4

8.1 

7.4

126

6.9 

7.4

122

7.2

7."' 

17 

22 

30 

17 

37 

30 

47

256

45 

46 

41

3H7

43 

40 

35 

37

35 

28 

27 

21

429

19 

21 

20

157

2?

36 

48 

47 

54 

49 

43 

41

43S

Total

25

24 

33

640

31 

27 

32 

69 

28 

22 

14 

11 

12

328

4.8

8.8 

15

275

39 

40 

21 

21 

18 

15 

9 7

8.2

7.5

208

7.1 

7.7 

13

207

7.8 

131 

202 

152 

92 

69 

62 

46 

59

849

52

50

975

49 

43 

37 

40 

38 

36 

28 

22 

21

468

IS 

21 

20

374

157 

96 

143 

80 

63 

66 

53 

45 

42

80S

Month

December. ............

Calendar year 1943.

September. ...........

Water year 1943-44.

December. ............

Calendar year 1944.

September. ...........

Water year 1944-45.

December. ............

Calendar year 1945.

September. ...........

Water year 1945-46.

December. ............

Calendar year 1946.

September. ...........

Water year 1946-47.

Runoff In acre-feet

Creek

1.2 

2.1 

7.9

381

9.0 

132 

83 

22 

13 

12 

7.7 

3.5 

2.4

296

2.1 

9.1

8.6

304

8.5 

16 

12 

9.1. 

4.9 

3.6 

.7 

.5 

.3

75

.3

.5 

9.6

66

6.0 

6.2 

14 

15 

9.9 

2.2 

.5 

.2 

.2

65

1.1 

5.6 

13

74

14 

7.5 

3.6 

1.9 

.6 

.3 

.1 

.06 

.06

48

Diversiont

38 

40

39

492

40 

41 

47 

55 

54 

55 

54 

43 

43

549

43 

44 

47

566

47

44 

44 

48 

44 

39 

30 

25 

23

478

20 

23 

27

414

32 

36 

32 

39 

42 

28 

21 

18 

11

329

10 

15 

24

308

23 

23 

21 

20 

17 

15 

12 

9.9 

10

200

Total

39 

42 

47

873

49 

173 

130 

77 

67 

67 

62 

46 

45

844

45 

53 

56

870

56 

60 

56 

57 

49 

43 

31 

26 

23

555

20 

24 

37

482

38 

42 

46 

54 

52 

30 

22 

18 

11

394

11 

21

37

382

37 

30 

25 

22 

18 

15 

12 

10 

10

248
Extremes.- Maximum discharge during year, 45 second-feet Apr. 29 (gae;e height, 1.84 

reet) ; mininurn daily, 0.1 secjt.d-foot Sept. 3-11.

1910-48: Maximum discharge, 8,620 second-feet Mar. 2, 1933, by slope-area method; 

practically no flow for several months in some years.

Discharge, in second-feet, water year October 1947 tp Septemberl948

Day

1

2

3

4

5

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.7

. 7

.7

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.8

.8

Nov.

0.7

.7

.7

.7

.7

.7 

.7

.8

.8

.8

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

Dec.

1.0

1.0

.9

1.3

8.6

2.4 

1.8

1.7

1.7

1.7

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.2

1.2

1.2

1.4

1.4

1.4

1.5

Jan.

1.5

1.5

1.5

1.5

1.5

1.5 

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

.4

.4

.2

.2

.2

1.2

1.2

1.2

1.2

Feb.

1.2

1.2

1.2

1.2

7.3

4.3 

2.7

2.4

2.2

2.2

2.1

2.0

2.0

2.0

2.0

2.0

2.1

2.1

2.2

2.2

2.2

2.1

2.1

2.0

2.0

2.0

2.4

2.4

_

-

Month

Calendar year 1947 ......................

April ......................................

September ..................................

Water year 1947-48 ......................

Mar.

2.2

2.2

2.2

2.2

2.2

2.4

2.6

2.7

2.9

2.9

2.9

4.7

9.1

6.4

3.4

5.8

6.4

4.6

4.6

3.8

3.3

2.9

5.9

11

9.0

4.7

3.6

3.4

3.3

3.1

Apr.

3.1

3.6

5.0

3.8

3.3

2.9

2.7

2.7

4.8

3.6

3.1

2.7

2.7

2.6

2.4

2.2

2.2

2.6

2.6

2.7

2.9

2.6

2.2

2.0

1.8

1.7

3.2

32

8.5

-

Secondfoot-days

21.9

23.1

56.0

1,336.2

43 5

72 5

5.7

603.2

May

5.6

4.6

3.6

2.7

2.4

2.1 

2.0

1.8

1.8

1.8

1.7

1.5

1.4

1.4

1.4

1.5

1.5

1.7

1.7

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.7

1.5

1.5

1.5

Maximum

0.8

.9

8.6

36

32

.3

32

June

1.5

1.5

1.5

1.7

1.7

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.0

1.0

1.0

-

Minimum

0.6

.7

.9

.5

.1

.1

July

1.0

.9

.9

.9

.8

.7 

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

Aug.

0.4

.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

.3

.3

.2

.2

Mean

0.71

.77

1.81

3.66

1 32

.19

1.6J

Sept.

0.2

.2

.1

.1

.1

.1 

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.2

.2

.2

~

Runoff in 

acre feet

43

46

111

2,650

11

1,200

Peak discharge (base, 150
LOS ANGELES RIVER BASIN

Location.- Water-stage recorder, 1-t. 34°01'55", long. 118

(*rant, at Montebello oil field, about 1,000 feet upstream from Mission Bridge 

t miles northeast of Montebello, Los Angeles County. Altitude of gage, about

discharge during y-ar, 4,240 second-feet Mar. 24 (gage height 7 45 

daily, 6.6 second-feet Sept. 18, 13. ' '

: Maximum discharge, 28,000 second-feet Mar. 2, 1938; minimum, 0.3 secondDischarge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

33

30

30

30

29

33

34

34

34

35

35

33

36

36

34

35

35

34

33

34

32

30

32

32

34

29

34

33

33

35

33

Nov.

33

32

34

32

32

32

32

33

33

34

35

35

34

34

34

33

36

36

35

35

36

49

33

35

34

34

32

32

35

35

-

Dec.

81

43

46

217

448

69

40

33

38

41

43

43

40

38

38

36

36

35

35

38

38

44

44

46

41

43

44

41

47

43

41

Jan.

41

39

39

38

40

39

38

38

38

38

36

40

38

36

36

38

39

39

39

39

39

38

38

38

36

40

39

38

38

38

36

Feb.

35

36

36

36

326

103

46

41

46

44

41

40

38

39

38

38

39

40

36

38

38

36

38

38

38

36

29

23

15

-

Month

October. ............................. .....

November . ........................ .

December. ..................................

Calendar year 1947 ........

January ............................. .

February ....................................

March. ...................... ........ . . .

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Hater year 1947-48 ......................

Mar.

15

15

14

13

11

9.9

9.9

12

12

12

12

11

136

48

23

31

174

18

5320'

17

16

16

500

25

16

15

15

15

15

15

Apr.

18

22

67

24

20

31

15

15

16

90

20

16

16

14

14

14

14

14

13

13

13

14

14

18

18

18

18

165

56

15

-

Seoondfoot-days

1,024

1,029

1,910

15,482

1 , 186

1,427

1,314.8

815

457

2 , 851 . 5

279.0

260.0

234.0

12,787.3

May

15

16

14

14

14

12

13

14

12

12

13

14

13

14

12

12

12

13

16

14

14

12

16

21

21

14

14

17

20

20

19

Maximum

36

49

448

448

41

326

500

165

21

548

12

12

9.0

548

June

27

27

293

533

481

506

548

210

16

14

13

12

11

8.2

8.6

9.0

11

11

9.9

9.0

8.6

11

11

9.9

9.9

9.0

8.6

8.6

8.6

8.6

-

Minimum

29

32

33

22

36

15

9.9

13

12

7.0

7.8

6.6

6.6

July

8.6

8.6

8.6

8.2

8.2

8.1

8.2

8.2

7.8

7.0

7.0

7.4

8.2

8.6

9.9

9.9

12

12

12

11

9.9

9.0

9.0

8.6

9.0

9.0

11

8.6

8.6

8.6

8.2

Aug.

8.2

8.2

7.8

7.8

8.6

8.6

8.6

8.2

8.2

8.2

8.2

8.6

8.6

8.6

3-. 2

8.2

8.2

8.2

7.8

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.6

8.6

12

8.2

8.2

Mean

33.0

34.3

61.6

42.4

38

49.2

42.4

27.2

14.7

95.0

9.00

8.39

7.80

34.9

Sept.

8.2

8.2

8.2

8.2

a. z

.8

.8

.8

.4

.0

.0

.6

.6

.0

.0

.0

.4

.6

.4

.4

7.8

8.2

8.2

8.6

8.6

9.0

8.2

7.8

7.8

9.0

-

Runoff in 

acre-feet

2,030

2,040

3,790

30,700

2,350

2,830

2,610

1,620

906

5,660

553

516

464

25,370
LOS ANGELES RIVER BASIN 125

Location.- Water-stage recorder, lat. 33°56'40", long. 118°09'50", in San Antonio Grant, 

on Stewart and Gray Road Bridge, 0.5 mile upstream from mouth and 1.5 miles west of 

Downey, Los Angeles County. Datum of gage is 90.20 feet above mean sea level (levels 

by Los Angeles County Flood Control District).

Records available.- March 1928 to September 1948. 

Average discharge.- 20 years, 33.1 second-feet.

Extremes.- Maximum discharge during year, 2,880 second-feet Mar. 24 (gage height, 8.15 

feet); no flow during several days.

1928-48: 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. 

ttedger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.7

1.1

.4

.4

.7

.8

.8

1.3

2.4

1.7

1.0

1.3

1.3

2.1

5.5

4.8

1.4

2.4

3.4

.7

0

1.1

1.4

1.0

1.7

1.4

2.1

1.7

3.8

4.1

3.4

Nov.

1.7

.6

1.0

1.4

1.3

2.4

4.8

3.8

3.8

5.5

5.5

3.8

6.2

4.5

5.5

4.5

3.8

0

0

0

0

2.1

0

0

2.4

4.5

0

0

3.1

2.1

-

Dec.

3.8

0

0

2.2

425

53

15

6.7

3.3

1.6

.4

.3

.2

.2

.1

.1

.1

.1

.1

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

0

0

0

0

0

0

0

0

1.0

2.0

2.5

3.1

2.6

2.5

2.3

2.8

2.6

2.5

2.8

Feb.

2.6

1.6

1.6

2.6

209

67

6.0

1.8

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.8

5.0

4.8

4.5

0

_

-

Month

October. ...... .^. ........ ^ ................

November. ......................... ^ .*... ,.

December ...................................

Calendar year 1947 ......................

January. ................................. .

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1947-48 ......................

Mar.

0

3.1

4.5

4.3

3.3

2.6

2.2

2.6

2.0

1.3

1.2

1.0

3.9

18

3.8

.6

83

.4

1.5

3.0

.6

.3

0

237

6.0

0

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.3

1.9

2.8

3.8

5.0

4.5

2.8

.9

.2

.4

.4

50

4.3

-

Secondfoot-days

56 9

74.3

SI'S". 2

1,686.3

26.7

310.3

386.2

146 ! 7

81.8

57.1

23.8

15.1

1,769.4

May

2.0

2.3

3.8

4.8

6.0

7.7

7.7

6.7

6.4

6.4

5.3

4.0

7.4

7.0

6.4

4.0

3.8

4.5

4.8

5.7

4.8

4.0

3.3

4.0

4.3

3.3

3.3

3.8

3.6

3.1

2.5

Maximum

5.5

425"

425

3.1

209

237

50

7.7

4 5

3 4

1.6

1.6

425

June

2.5

2.3

2.3

3.3

3.3

3.1

3.8

3.1

2.3

2.8

3.1

4.0

3.3

3.6

4.0

4.0

4.5

3.3

2.8

2.2

1.8

1.8

2.0

1.9

1.8

1.8

1.6

1.8

1.9

1.8

-

Minimum

0

&

0

0

0

0

0

0

2.0

1 . 6

1.1

0

0

0

July

1.3

1.2

1.3

1.8

2.3

2.5

2.3

2.3

2.3

1.6

1.6

2.5

2.6

1.9

2.3

1.9

1.9

1.8

1.8

1.6

1.5

3.4

1.6

2.0

2.3

1.8

1.2

1.2

1.1

1.1

1.1

Aug.

1.5

1.6

1.2

1.2

.6

.9

.2

0

.2

1.0

1.1

.8

.9

1.2

1.2

1.5

1.5

.8

.3

.5

.8

.9

1.1

1.0

.6

0

.4

.1

.4

.1

.2

Mean

1.84

2 . 4*8

16.5

4.62

.86

10.7

12.5

2.61

4.73

2 73

l!84

.77

.50

4.83

Sept.

0.'

0

!i

1.0

.2

0

0

0

.8

.8

.2

.2

1.6

.7

.9

1.5

.7

.3

.6

1.1

Runoff in 

acre feet

113

147

1,020

3,350

53

615

766

155

291

162

113

47

30

3,510
Location.- VJater-stage recorde^ and broad-crested weir, lat. 34 C 10'2;:", long. 117°s9 l 20 1 ', 

in flKfSWir se3. 13, T. 1 N. S. 11 W., 0.1 mile downstream from Monrovia Creek, 0.3 

nile downstream from Cawp ' Dan, and 1.5 miles north of Monrovia. Altitude of gage, 

about 1,100 feet (from topographic map).

ies.- Maximum discharge during year, 0.8 EPco-Ti-foot Mar. 14 (gage height, 0.16 l\w> 

1") ; no flow daring se /eral periods.

1916-48: Maximum discharge, about 2,030 second-feet Apr. 7, 192d, estimated from 

'T of Fogers "reek; i'O flow during parts of most years.

JIB' rl ; f , Srcugn H. E. Hedger, chlei engineer

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

6

Oct.

4 i

5

6

7

9

10

11

13

14

15

16

17

18

19

20

21

22

23

24

2t>

26

27

28

29

40

31

Nov. Dec. Jan. Feb Ifei

-(

T C

C, 0

.2 1

.2 .1

.1 .1

n o

0 0

0 0

0 0

0 0

1

0 0

',

^ 0

0 0

0 ^

n i o

0 &

0

-! 0

I :

Q

0

0

Q

0

0

0

0

0

o

0

.1

.4

Apr

;,

.1

May June j July Aug.

Q

0

0

0

0

0

0

0

0

T

.2 0

0

0 0

0 0 ,'J 3

J

0

0

.1

0

0

Q

3

0

Q

T-.J.' 0

0 0

j 0

0 I

^ i

0 '

0

0

0

_

1 1 !

Month

Calendar year 1947 ... . . .

March ....... ......

June ... . . , . , . .....

September ............

Water year 1947-48 . . ...

Secondfoot-days

51.71

0

1.7

Maximum Minimum

d.5

.4

.-,

0

.4

J

C

,--1

0

0

1

Mean

.142

^"

0

0

.005

Sept

a: re--'

Q

102

l.B

^

3.4

Diversion 

acre-feett

77

1,150

43

315
LOS ANGELES RIVER BASIN

Santa Anita Creek near Sierra Madre, Calif.

Drainage area.- 10.5 square miles.

Records available.- July 1916 to September 1948.

Average discharge.- 32 years, 6.29 second-feet.

Extremes.- Maximum discharge during year, 47 second-feet Apr. 28 (gage height, 1.64 feet); 

minimum daily, 0.1 second-foot Sept. 3-5, 10-12.

lttlG-48: Maximum discharge, about 5,200 second-feet Mar. 2, 1938, based on inflow 

to Big Santa Anita flood-control reservoir; practially no flow Aug. 18 to Sept. 14, 

1329.

Remarks.- Records good. No diversion above station.

Discharge, in second-feet, water year October 1947 to Septemberi948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

Oct.

0.7

.8

.7

. 6

.5

.6

.6

.7

.7

.7

.8

.9

.9

.9

.9

.9

.9

.9

.7

.7

.8

.8

. 7

.7

7

. 7

28 .9

29

30

31

1.0

1.1

1.0

Nov.

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

9

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.1

1.1

1.1

1.1

1 . 0

1.0

1.0

1.0-

Dec.

.1

.3

.2

.9

.0

.9

.9

. . 7

.7

.6

.5

.5

.4

.4

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

. 3

1.3

Jan

1.3

1.4

1.5

1.5

1.5

1.5

1 . 5

1.4

1.4 i.;;

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1 . 2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

Feb.

1.1

1.2

1.2

1.2.

8.4

6.5

3 . 7

2.7

2.6

2 . L

2.0

1.9

1.9

1.8

1.7

1.7 1.-

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.8

1.9

Month

October. ....... ... . ........... .... ....

November ... ... ................. ........

December. . . .......... ...................

Calendar year Ia4 / ...... .......... ...

January ...... ... ........... ...... .... .

February ..... ............... ..........

March. . . . .......... ....... .............

April . ....... ... .............. . . . .

May. . ....... .................. . . ....

June. . . ... .... ...... ... ... ...........

July. .... . ............... ...............

August ........ ........ ... . . ...........

September. . . . . . . . . .... . . . . .... . .

Water year 134 /-48 .... . .... .........

Mar.

1.7

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

0

4.R

4.3

2.3

4.7

3.6

3.4

3.1

2.8

2 . 6

2.4

7.6

5.3

4.1

3.4

2.9

2.8

2.7

2 . 6

Apr.

2.4

P. 7

5.0

4 . 5

3.7

3.4

3.4

3.1

2.9

3.7

3.4

3.1

2.3

S.f

? .:

2.0

1.9

1.9

1.9

l.S

1.8

1.7

1.5

1.4

1.4

1.4

6.9

12

4.3

-

Secondfoot-days

2<i , 2

29.3

51.4

1,17,4.3

39 5

63.8

93.5

58.5

40.7

17.4

10.2

7.2

523."

May

3.6

3.2

2.8

2.6

2.3

2.U

2.2

2.2

2.0

2.'J

i.y

1.9 I.'7

l.S

1.5

1.4

1.4

1.5

1.6

1.6

1.6

1.6

1.5

1.6

1.7

1.7

1.7

1.6

1.5

1.5

1.5

Maximum

1.1

1.1

6.0

28

1.5

8.4

7.6

12

z'.i

.5

.4

12

June

1.6

?.l

1.9

l.S

1.8

1 6

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.2

1 . 2

1.2

1.3

1.3

1.3

1.2

1.1

1.1 i.:

.9

_ ,q

-

Minimum

0 '.35

1.1

.5

1.1

1.1

1.4

1.4

1.4

. 8

.4

.2

.1

.1

July

0.8

.7

.7

.7

.7

., !s

.6

.6

.6

.C

.6

.6

.5

.5

- p

G

.5

.5

.4

.4

.4

.4

.5

.4

.4

Aug.

0.4

.4

.4

.5

.4

.4

.4

.4

.4

.3

. 3

.4

.3

. 3

.5f ^

m ;

.3

,

. 3

_ 5

.3

.4

.3

t 2

.2

Mean

0.78

.98

1.65

3.11

1.27

2 . 20

2 . 82

3.12

1 . 89

1.36

.56

.33 

.24

1.43

Sept.

0.2

.2

.1

.1

.1

.2

.2

.2

.2

.1

.1

.1

.2

.2

.2

.2

. ^

. ~j

.4

.4

.4

.4

^

. 5

.-

. 3

-

Runoff in 

acre feet

48

58

2,250

127

173 

185

116

35

20

14

1,040
128 LOS ANGELES RIVER BASIN

Little Santa Anita Creek near Sierra Madre, Calif.

Location.- Water-stage recorder and concrete control, lat. 34°11'15", long. 118°02'35", 

near center of NW^ sec. 9, T. 1 N., R. 11 W., 1.3 miles upstream from Sierra Madre 

Dam and 2 miles north of Sierra Madre. Altitude of gage, about 2,200 feet (from topographic map).

Drainage area.- 1.9 square miles.

Records available.- April 1916 to September 1948.

Average discharge.- 31 years (1916-25, 1926-48), 0.97 second-foot.

Extremes.- Maximum discharge during year, 13 second-feet Apr. 28 (gage height, 1.27 

feet); minimum daily, less than 0.1 second-foot on many days.

1916-48: 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, 

1925.

Remarks.- Records good. No diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

 8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.1

.1.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.2

.2

.2

Nov.

0.2

.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

.1

-

Dec.

0.1

.1.1

.5

.9

.5

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Jan.

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

Feb.

0.2

.2

.2

.2

.9

.7

.5

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

-

Month

October ....................................

November. ........................ .........

December. ..................................

Calendar year 1941 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July. ..... ... ...............

Augu 

Sept

St. ....................................

ember. .................................

Water year 1947-48 ......................

Mar.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.5

.5

.5

.4

.6

.4

.4

.4

.4

.3

.3

1.1

.8

.6

.5

.5

.5

.5

.4

Apr.

0.4

.5

.8

.6

.5

.5

.5

.5

.4

.5

.5

.4

.4

.4

.3

3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

2.0

1.4

.8

^Xs

4.8

4.7

8.5

197.8

6 . 2

7 . 8

12.0

14.7

9 . 3

6.4

2.33

1.59 

1.25

79.57

May

0.6

.6

.5

.5

.4

d.4

d.4

d.4

d.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Maxima,.

0.2

.2

.9

5.1

.2

.9

1.1

2.0

.6

.4

.1

2.0

June

0.3

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

. 'g2

'I

.2

.2

'I

:

Hini.ua

0.1

.1 

.1

.1

.2

.2

.2

.2

.2

.1

-

-

July

0.1

.1

.1

.1

. e.07

, e.08

^ e.07

e.06

Aug.

 eO.06

e.04

. e.05

> e.06

, e.04

'

Mean

0.15

.16

.27

.54

.20

.27

!49

.30

.21

.075

.051 

.042

.217

Sept.

 eO.C3

 e.04

e.05

\ e.06

1

.

> e.05

[

-

Runoff in 

acre-feet

9 5

9 . 3

17

394

12

15

24

29

18

13 

4.6

3.2 

2.5

157

Peak discharge (base, 7.0 sec.-ft.).- Apr. 28 (8:15 p.m.) 12 sec.-ft. 

d Doubtful gage-height record: discharge interpolated, 

e Daily discharge less than 0.1 second-foot.
LOS ANGELES RIVER BASIS 129

Eaton Creek near Pasadena, Calif.

Location- Water-stage recorder and broad-crested weir, lat. 34°11'40", long. 118°06'15", 

in SKi;- sec. 2, T. IN., R. 12 W., at mouth of canyon, just upstream from bridge on old 

Mount Wilson toll road and 4 miles northeast of Pasadena. Altitude of gage, about 

1,230 feet (from topographic map).

Drainage qrea.- 6.5 square miles.

Records available.- March 1918 to September 1948.

Average discharge.- 30 years, 2.68 second-feet, 

diversion, au years, 4.01 second-feet.

Average combined discharge of creek and

Extremes.- Maximum discharge during year, 42 second-feet Apr. 29 (gage height, 1.10 feet); 

no now during most of year.

1918-48: 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. City of Pasadena has two surface diversions upstream and one innitration gallery diversion downstream from this station. The upstream diversions are 

shown in the monthly table. The downstream diversion is not included in this record. 

For some past years it has been included. In the current year it amounted to 13.8 percent of the upstream diversions.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. ' Dec.

o

0 

0 

0 

1.2

1.0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

ffa

her. .........................

mber .........................

lendar year 1947 

ary

h.. ..........................

1 ............................

st ...........................

ember ........................

ter year 1947-48 ............

Feb.

0 

0 

0 

0 

1.9

1.2

0 

O 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o

0

o

0

0 

0

D 

0

. Secondfoot-days

0 

0 

2.2

80.7

0 

3.1 

5.3 

15.3 

0 

0 

0 

0 

0

25.7

Peak discharge (base, 55 see. -ft.).- No pel

Mar.

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

3.5

1.8

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

.7 

13

1.4

Maximum

0 

0 

1.2

8.4

0 

1.9 

3.5

13 

0 

0 

0 

0 

0

13

k above base

t Diversion by city of Pasadena. Records furnished by

May

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

.

that city.

June

Mean

0 

0

.07

.22

0 

.11 

.17 

.50 

0 

0 

0 

0 

0

.07

July Aug. Sept.

Runoff In Diversion in 

acre-feet acre-feett

0 35 

0 38 

4.4 54

160 1,240

0 43 

6.1 67 

11 92 

30 90 

0 88 

0 44 

0 22 

0 16 

0 13

52 602
rer.es .- Maxlmm discharge during 7 ar , 51 se^or.d-feet Dec. 4 (gage height, 7.05 feet

1319-48: Vxiru'i dis-n- rge not determined, occurred Kar. 2, 1938. A discharge o

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

16

16

16

17

17

18

18

18

18

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

Nov.

17

17

17

17

17

17

17

18

18

18

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

18

19

Dec.

20

20

19

20

33

39

22

21

20

20

19

19

19

18

18

18

18

18

18

18

18

17

17

18

18

17

18

18

19

19

20

Jan.

21

21

21

21

21

22

£2

21

20

20

20

20

20

21

21

21

21

21

20

20

19

19

18

19

19

20

19

19

19

19

19

Feb.

19

20

19

20

26

26

25

24

21

20

20

20

20

20

20

19

19

19

19

18

18

18

18

17

17

16

17

17

17

-

Month

October. ...................................

November ...................... . .

December ...................................

Calendar year 1947 ..........

January. ......................... ....... .

February. ......................

March. ....................................

April. ................................... .

May. ....................... ...... .

June. ... ..................................

July. ......................................

August ..................... .............

September. .................................

Water year 1947 48 ... ..................

Mar.

17

17

17

17

17

17

17

17

17

16

16

16

17

17

18

17

20

. 18

19

18

18

17

17

20

19

19

19

19

19

19

19

Apr.

19

20

21

21

20

21

21

20

20

20

20

20

19

19

19

19

19

19

19

19

19

19

1?

19

19

19

19

19

18

18

-

Secondfoot days

528

552

606

6,817

624

569

550

583

550

508

483

425

408

6,386

May

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

17

17

17

17

17

17

17

18

18

18

18

18

18

18

17

Maximum

18

19

33

33

22

26

20

21

18

18

17

15

14

33

June

17

17

17

17

17

17

18

18

18

18

18

18

17

17

16

16

16

16

16

16

16

16

17

17

17

17

17

17

17

17

-

Minimum

16

17

17

15

18

16

16

18

17

16

14

13

13

13

July

17

17

17

17

16

16

16

16

16

16

16

16

16

16

15

15

15

15

15

15

15

15

15

15

15

15

15

16

15

15

14

Aug.

14

14

14

14

13

13

13

13

14

13

13

13

13

13

13

14

14

14

14

14

14

14

14

14

14

14

14

14

15

14

14

Mean

17.0

18.4

19.5

18.7

20.1

19.6

17.7

19.4

17.7

16.9

15.6

13.7

13.6

17.4

Sept.

14

14

14

14

13

13

13

13

13

13

13

14

14

14

14

14

14

14

14

14

14

14

14

14

14

13

13

13

13

13

-

Runoff in 

acre-feet

1,050

1,090

1,200

13,520

1,240

1,130

1,090

1,160

1,090

1,010

958

843

809

12,670
BALLONA CREEK BASIN 131

Ballona Creek near Culver City, Calif.

Location.- Water-stage recorder, lat. 33°59'50", long. 118°24'10", in La Ballona Grant, on 

Sawtelle Boulevard Bridge, 1.5 miles south of Culver City, Los Angeles County. Altitude of gage, about 40 feet.

Drainage area.- Ill square miles.

Records available.- February 1928 to September 1948.

Average discharge.- 20 years, 36.0 second-feet.

Extremes.- Maximum discharge during year, 12,700 second-feet Mar. 24 (gage height, 13.47 

I'eet); minimum daily, 3.5 second-feet on many days

1928-48: Maximum discharge, 19,000 second-feet Mar. 2, 1938; no flow during parts 

of some years.

Cooperation- Records furnished by Los Angeles County Flood Control District, through H. E. 

Hedger,chief engineer.

Revisions (water' year).- \/l J81: 1938.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

7

8

y

10

11

12

13

14

Ib

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.0

5.6

7.0

6.3

4.9

7.0

10

9.0

10

10

11

7.0

9.0

8.0

11

8.0

11

7.0

5.6

8.0

8.0

8.0

8.0

9.0

7.0

6.3

8.0

8.0

8.0

10

9.0

Nov.

8.0

5.6

7.0

8.0

7.0

7.U

8.0

10

7.0

8.0

8.0

12

10

10

8.0

7.0

8.0

7.0

6.3

6.3

6.3

15

4.2

6.3

6.3

6.3

4.9

6.3

9.0

4.2

-

Dec.

68

10

10

384

406

79

4.2

5.6

4.9

4.9

10

8.0

10

9.0

7.0

6.3

6.3

6.3

5.6

8.9

16

7.0

8.0

6.3

5.6

6.3

6.3

5.6

7.0

6.3

5.6

Jan.

6.3

7.0

8.0

4.2

5.6

6.3

8.0

8.0

7.O

7.0

5.6

8.0

5.6

4.9

5.6

6.3

7.0

4.9

7.0

7.0

6.3

4.9

7.0

6.3

4.2

11

4.9

4.9

5.6

5.6

5.6

Feb.

4.9

4.9

5.6

6.3

577

261

9.0

5.6

4.9

4.9

4.2

4.9

5.6

6.3

6.3

6.3

9.0

7.0

5.6

6.3

6.3

6.3

9.0

8.0

8.0

5.6

5.6

22

4.9

-

-

Month

December. ..................................

Calendar year 1947 ......................

Aprn. .....................................

July. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

4.9

4.2

4.2

3.5

6.3

5.6

3.5

4.9

5.6

5.6

4.9

6.3

389

76

10

26

539

7.0

94

9.0

5.6

4.2

3.5

L,OCO

13

8.0

6.3

6.3

6.3

7.0

6.3

Apr.

7.0

8.9

61

4.2

11

54

8.0

8.0

7.0

47

5.6

3.5

4.9

4.9

6.3

6.3

6.3 5.6'

5.6

7.0

12

9.0

5.6

5.6

5.6

7.0

6.3

131

52

7.0

-

Secondfoot-days

1,134.0

5,210.6

244.2

6,871.0

May

5.6

4.2

4.9

7.0

8.0

10

8.0

5.6

7.0

8.0

8.0

6.3

8.0

6.3

5.6

4.2

6.3

8.0

4.2

4.9

4.9

7.0

4.2

5.6

7.0

6.3

6.3

8.0

6.3

5.6

4.9

Maximum

406

440

13

1,000

June

14

118

7.0

8.0

6.3

6.3

7.0

6.3

5.6

6.3

8.0

7.0

6.3

8.0

7.0

7.0

8.0

7.0

6.3

4.9

5.6

8.0

8.0

8.0

7.0

6.3

7.0

11

13

8.0

Minimum

.2

.8

.9

3.5

July

9.0

6.3

6.3

7.0

6.3

8.0

6.3

8.0

12

12

9.0

18

16

11

11

12

12

10

16

7.0

6.3

5.6

6.3

4.2

5.6

11

6.3

7.0

8.0

9.0

7.0

Aug.

5.6

8.0

8.0

8.0

4.9

7.0

5.6

3.5

8.0

6.3

5.6

3.5

4.9

4.2

4.2

7.0

7.0

8.0

6.3

9.0

6.3

3.5

6.3

5.6

5.6

7.0

6.3

8.0

5.6

6.3

9.0

Mean

36.6

14.3

8.14

18.8

Sept.

9.0

11

12

7.0

5.6

6.3

6.3

6.3

9.0

5.6

4.9

5.6

7.0

8.0

8.0

8.0

7.0

7.0

6.3

9.0

8.0

6.3

8.0

13

11

9.0

11

13

9.0

7.0

Runoff in 

acre- feet

503

450

2,250

10,340

484

13,630
132 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 Monies- 

 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 1948.

Average discharge.- 17 years (1930-38, 1939-48), 6.24 second-feet.

Extremes.- Maximum discharge during year, 276 second-feet Mar. 24 (gage height, 4.36 feet); 

no now Aug. 1, 6, Sept. 19-29.

1930-38, 1939-48: 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 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.05

.05

.05

.05

.06

.06

.06

.06

.07

.07

.07

.07

.08

.08

.08

.07

.07

.05

.05

.03

.02

.03

.05

.04

.04

.02

.04

.04

.03

.04

.04

Nov.

0.04

.04

.04

.04

.04

.04

.04

.05

.05

.05

.05

.03

.03

.04

.05

.05

.05

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.2

.2

.2

-

Dec.

0.2

.2

.2

.9

1.1

1.0

.8

.7

.6

.3-

.1

.07

.05

.07

.1

.1

.1

.1

.2

.2

.1

.1

.07

.04

.05

.05

.05

.05

.05

.07

.2

Jan.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

Feb.

0.2

.2

.2

.2

.7

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

_

-

Month

October. ............................... ...

November. ..................................

December. ..................................

Calendar year 1947 .....................

January. ...................................

February ...................................

March. .....................................

Hay

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

1.6

.9

.3

2.3

7.3

1.5

1.0

.8

.5

.4

.4

23

1.0

.6

.2

.2

.2

.2

.1

Apr.

0.1

.1

.5

.4

.3

.4

.3

.2

.2

.4

.2

.2

.1

.05

.05

.04

.04

.04

.04

.04

.05

.05

.05

.05

.04

.04

.04

.2

.2

.1

-

Secondfoot-days

1 . 62

2.03

7.92

109.01

6.0

6.4

44.7

4.52

5.2

4.1

.73

.78

.39

84.39

May

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Maximum

0.08

.2

1.1

8.9

.3

.7

23

.5

.2

.6

.1

.05

.03

23

June

0.2

.6

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Minimum

0.02

.03

.04

.02

 1

.2

.1

.04

.1

.1

.01

0

0

0

July

0.1

.1

.05

.05

.04

.03

.02

.01

.01

.01

.01

.01

.01

.02

..02

.02

.02

.02

.02

.02

.02

.02

.02

.01

.01

.01

.01

.01

.01

.01

.01

Aug.

o

.01

.02

.02

.02

0

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.03

.03

.03

.03

.03

.03

.04

.04

.04

.04

.05

.04

.03

.03

Mean

0.052

.068

.255

.299

.19

.22

1.44

.151

.17

.14

.024

.025

.013

.231

Sept.

0.02

.03

.03

.03

.03

.03

.03

.03

.03

.03

.01

.01

.02

.01

.01

.01

.01

.01

0

0

0

0

0

0

0

-0

0

0

0

.01

Runoff in 

acre feet

3.2

4.0

16

216

12

13

89

9.0

10

8.1

1.4

1.5

.8

168
MALIBU CREEK BASIN 133 

Malibu Creek at Crater Camp, near Calabasas, Calif.

Location.- Water-stage recorder, lat. 34°04'30", long. 118°42'10", in SWi sec. 18, T. IS., 

 K . 17 tf., 0.2 mile dovmstream from Crater Camp and 6 miles southwest of Calabasas.

Drainage area.- 103 square miles.

Records available.- January 1931 to September 1948.

Average discharge.- 17 years, 22.6 second-feet.

Extremes.- Maximum discharge during year, 113 second-feet Mar. 24 (gage height, 5.26 feet); 

minimum daily, 0.03 sectmd-foot on many days.

1931-48: Maximum discharge, 12,200 second-feet Jan. 22, 1943 (gage height, 18.31 

feet); no flow for periods in some years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through H. E. 

Hedger, chief engineer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2

.2 

.2

.2

.2

.1 

.1

.1 

,1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.04 

.1 

.1 

.1

.1 

.1

Nov.

0.1

.1

.1

.1

.1

.1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

Dec.

0.1 

.1

.9

.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

.2 

.2

.2

.3 

.2 

.2 

.2

.2 

.2 

.2

.3 

.2

.2 

.2

.3 

.3 

.3 

.3

Feb.

0.2 

.2

.2

.4

.3

.3 

.3

.4

.4 

.3 

.4 

.3

.3 

.2 

.2 

.2 

.2

.3 

.3 

.3 

.3

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

Unu

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1947 

ary

1. ............... ... ...... ....

ember . .................................

ter year 1947-48 ......................

Mar.

0.4 

.4

.3

.3

.4

.4 

.4

.6

1.1

.6 

.6 

.5

.5 

.5 

.5 

15 

2.4

3.1 

2.7 

.8 

.6 

.6 

.5

Apr.

0.5 

.5

.5

.5

.5

.3 

.2

.4

.3 

.2 

.2 

.3

.3 

.4 

.4 

.3 

.2

.2 

.2 

.4 

.3 

.4

May

0.4 

.2

.2

.2

.2

.2 

.2

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1 

.1

Second- u=_4_,._ foot-days M"1"" 

4.04 0.2 

3.0 .1 

4.9 1.1

733.64 31

6.4 .3 

8.6 .4 

36.4 15 

11.3 .6 

6.2 .4 

4.7 .2 

2.98 .1 

1.28 .1 

1.32 .1

91.12 15

June

0.1 

.2

.2

.2

.2

.2 

.2

.2

.2 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Minimum

.04 

.1 

.1

.04

.1

.2 

.2 

.2 

.1 

.1 

.04 

.03 

.03

.03

July

0.1 

.1

.1

.1

.1

.1

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.04 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.04

Aug.

0.04 

.04

.04

.04.

.04

.

. 

.

.

34

04 

04 

34 

34 "M

.03 

.04 

.04 

.04

.04 

.04 

.04 

.04 

.03

.04 

.04 

.04 

.04 

.04 

.04

Mean

0.13 

.10 

.16

2.01

.21

.30 

1.17 

.38 

.20 

.16 

.096 

.041 

.044

.249

Sept.

0.04 

.04

.04

.04

.04

.03

.03 

.03 

.03 

.04

.03 

.03 

.04 

.04

.04 

.04 

.04 

.04 

.04

.04 

.04 

.04 

.1 

.1

Runoff in 

acre- feet

8.0 

6.0 

9.7

1,450

13 

17 

72 

22 

12 

9.3 

5.9 

2.5 

2.6

180

889419 O - 50 - 10
134 SANTA CLARA RIVER BASIN

Santa Clara River near Saugus, Calif.

Location.- Water-stage recorder, lat. 34°25'30", long. 118°35'10", in San Francisco Grant, 

at bridge on U. S. Highway 99, 3 miles west of Saugus, Los Angeles County. Altitude of 

gage, about 1,030 feet.

Drainage area.- 355 square miles.

Records available.- October 1929 to September 1948.

Average discharge.- 19 years, 18.0 second-feet.

Extremes.- Maximum discharge during year, 350 second-feet Mar. 24; minimum daily, discharge, 0.8 second-foot Sept. 15-20.

1929-48: Maximum discharge, 24,000 second-feet Mar. 2, 1938; no flow at times in 

each year 1935-39.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1947 .to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

1.9 

1.9 

2.0 

2.1 

2.2

2.3 

2.4 

2.5 

2.6 

2.5

2.4 

2.3 

2.1 

2.0 

1.9

1.8 

1.9 

2.1 

2.3 

2.4

2.6 

2.8 

3.0 

3.0 

3.1

3.1 

3.2 

3.2 

3.3 

3.3 

3.3

Nov.

3.2 

3.2 

3.2 

3.1 

3.1

3.1 

3.1 

3.1 

3.1 

3.0

3.0

3.0 

3.1 

3.1

3.2 

3.3 

3.4 

3.5 

3.6

3.6 

3.6 

3.5 

3.5 

3.5

3.4 

3.4 

3. '4 

3.5

3.5

Dec.

3.6 

3.7 

3.7 

3.8 

3.8

3.8 

3.8 

3.9 

3.9 

3.9

3.9

3.8 

3.7 

3.6

3.5 

3.4 

3.4 

3.4

3.5

3.5 

3.6 

3.6 

3.7 

3.7

3.7 

3.9 

4.1 

4.3 

4.5 

4.7

Jan.

4.7 

4.7 

4.7 

4.7 

4.7

4.7 

4.7 

4.7 

4.7 

4.6

4.6

4.5

4.4

4.6 

4.8 

5.0 

5.2 

5.4

5.6 

5.9 

5.7 

5.5 

5.3

5.1 

4.9 

4.7 

4.4 

4.3 

4.1

Feb.

3.9 

3.8 

3.6 

3.4 

3.2

3.2 

3.3 

3.3 

3.4 

3.4

3.4

3.5

3.6

3.7 

3.8 

3.9 

3.9 

3.9

3.9 

3.9 

3.9 

3.8 

3.8

3.8 

3.8 

3.8 

3.8

Month

Octo 

Nove 

Dece

Ca

Janu Febri 

Hare 

Apri

UAV

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

h. .....................................

ember ..................................

ter year 1947-48 ......................

Mar.

3.8 

3.7 

3.7 

3.7 

3.7

3.7 

3.8 

3.8 

3.9 

3.9

3.9

4.1

4.3

4.4 

7.0 

5'. 2 

5.0 

4.8

4.6 

4.4 

4.2 

33 

5.4.

5.3 

5.3 

5.2 

5.2 

5.1 

5.0

Apr.

5.0 

4.9 

4.9 

4.8 

4.7

4.7 

4.6 

4.6 

4.6 

4.7

4.7

4.9

5.0

4.7 

4.3 

4.0 

3.7 

3.4

3.5

3.5 

3.6 

3.6 

3.7

3.8 

3.8 

3.9 

6.9 

4.0

Secondfoot-days

77.5 

98.3 

117.3

4,599.9

149.8. 

105.7 

167.3 

132.2 

86.1 

66.6 

56.9 

52.8 

31.7

1,142.2

May

3.E 3.' 

3. 

2.4 

3.'t

3.] 

3.3 

3.C 

2.E 

2.£

2.£

2.£

)'

t

2.6

2.5 

2.5 

2.5 

2.4 

2.4

2.4 

2.5 

2.5

2.6 

2.7

2.7 

2.6 

2.6 

2.5 

2.5 

2.4

Maximum

3.3 

3.6

4.7

74

5.9 

3.9 

33 

6.9 

3.8 

2.6 

2.7 

2.0 

1.7

33

June

2.4

2.3 

2.2 

2.2 

2.2

2.1 

2.0 

2.0 

1.9 

1.9

1.9 

2.0 

2.0

2.1

2.1 

2.1

2,2 

2.2 

2.3

2.3 

2.3 

2.4 

2.4 

2.4

2.5 

2.5 

2.5

2.6 

2.6

Minimum

1.8 

3.0 

3.4

1.8

4.1 

3.2 

3.7 

3.4 

2.4 

1.9 

1.5 

1.3 

.8

.8

July

2.7 

2.7 

2.6 

2.5 

2.3

2.2 

2.0 

1.9 

1.9 

1.9

1.8 

1.8

1.7

1.7

1.7 

1.7 

1.6 

1.6 

1.6

1.5 

1.5 

1.5 

1.6

1.6

1.7 

1.8 

1.6 

1.5 

1.5 

1.5

Aug.

1.5 

1.5 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.5 

1.5

1.5 

1.5 

1.5

1.6

1/7 

"1.8 

1.9

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

1.9 

1.8 

1.6 

1.5 

1.3

Mean

2.50 

3.28 

3.78

12.6

4.83 

3.64 

5.40 

4.41 

2.78 

2.22 

1.84 

1.70 

1.06

3.12

Sept.

1.2 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

l.C 

l.C 

.9 

.9 

.8

.8 

.8 

.8 

.8 

.8

.9 

.9 

.9 

.9

1.0

1.2 

1.4 

1.5

1.6 

1.7

Runoff in 

acre- feet

154 

195

233

9,120

297 

210 

332 

262 

171 

132 

113 

105 

63

2,270
SANTA CLARA RIVER BASIN 135

Piru Creek near Piru, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34 0 25'30", long. 118°45'45", 

in southern part of Temescal Grant, 1.8 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, October '1934 to September 1948. October J.92Y to September 1934 at site 1.5 miles downstream.

Average discharge.- 21 years (1927-48), 66.2 second-feet.

Extremes.- Maximum discharge during year, 420 second-feet Mar. 24 (gage height, 2.81 

reet); minimum daily, 1.0 second-foot on several (Jays in July and August.

1911-13, 1927-48: 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 water for irrigation above station, and 

firu Water Co.'s ditch diverts below.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.2 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.2

2.2 

2.2

2.2 

2.6 

2.6 

3.4 

3.8

4.2 

4.6 

4.2 

4.2 

4.6

3.4 

3.4 

3.4 

3.0 

i.O

3.0 

3.0 

3.4 

3.4 

3.4 

3.4

Nov.

.8 

.2

.6 

.0 

.0

.0 

.0 

.0 

.0 

.0

.0 

.5 

.5 

.5

8.0

8.0 

8.0 

8.0 

8.5 

9.0

9.5 

9.5 

9.5 

9.5 

9.5

9.5 

9.5 

9.5 

9.5 

9.5

Dec.

9.5 

9.5 

10 

12 

19

22 

16 

14 

14 

13

13 

12 

12 

12 

12

12 

12 

12 

12 

13

13 

13 

12 

11 

11

11 

11 

11 

12 

12 

12

Jan.

11 

15 

13 

12 

12

12

12 

12 

12

12

12 

12 

11 

11 

11

11

11 

10 

9.0

8.5 

10 

11 

12 

12

10 

8.5 

8.0 

7.0 

8.5 

10

Feb.

13 

11 

9.0 

10 

31

39 

24 

19

17 

16

17 

17 

16 

15 

16

14 

14 

15 

15

16

15 

14 

14 

13 

13

12

12 

13 

15

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

her. ...................................

mber ...................................

lendar year 1947 

ary

1. .....................................

St. ....................................

ember ..................................

ter year 1947-48 ......................

Peak discharge (base, 850 see. -ft.).- No p

a No gage -height record; discharge interpo

Mar.

14 

13 

12 

10 

9.6

10 

12 

12 

12 

12

12 

11 

15 

25 

20

17 

27 

21 

19 

19

16 

15 

14 

132 

80

30 

25 

22 

23 

22 

22

Apr.

20 

21 

37 

35 

33

27 

25 

22 

20 

21

19 

19 

19 

18 

17

17 

15 

14 

14 

14

12 

10 

10 

9.5 

10

9.0 

6.5 

9.8 

43 

26

Secondfoot-days

94.2 

236.6 

390.0

6,093.3

335.5 

465.0 

703.6 

572.8 

292.5 

130.7 

44.0 

34.6 

39.6

3,339.1

sak above ba 

lated.

Bay

23

19 

16 

13 

10

9.0 

8.5 

8.5 

9.0 

9.0

10 

8.5 

7.5 

8.0 

8.5

9.0 

9.0 

8.5 

9.0 

9.0

.5

.5 

.0 

.0 

.0

.0 

.5 

.0 

.5 

.5 

8.0

MaximuiD

4.6 

9.5 

22

110

13 

39 

132 

43 

23 

8.5 

2.2 

1.2 

1.5

132

Be.

June

8.5 

8.5 

7.0 

6.5 

6.0

6.0 

a5. 7 

aS. 3 

a5.0 

a4.6

a4.3 

a4.0 

a3.6 

a3.3 

a2.9

2.6 

2.2 

2.6 

3.0 

3.4

3.8 

3.8 

3.8 

3.8 

3.8

4.2

4.2 

3.8 

3.0 

1.5

Minimum

2.2 

3.8 

9.5

1.2

7.0 

9.0 

9.6 

6.5 

7.0 

1.5 

1.0 

1.0 

1.2

1.0

July

1.5 

2.2 

1.9 

1.9 

2.2

1.2 

1.2 

1.9 

1.5 

2.2

1.5 

1.5 

1.5 

1.9 

1.5

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.0 

1.0

1.0 

1.0 

1.2 

1.2 

1.2 

1.2

Aug.

1.2 

1.2 

1.2 

1.0 

1.0

1.0 

1.2 

1.2

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.2 

1.2 

1.0

1.0 

1.2 

1.2 

1.2 

1.2 

1.2

Mean

3.04 

7.89 

12.6

16.7

10.8 

i 16.0 

22.7 

19.1 

9.44 

4.36 

1.42 

1.12 

1.32

9.12

Sept.

1.2 

1.2 

1.2 

1.5 

1.5

1.5 

1.5 

1.5 

1.5 

1.5

1.5

1.5 

1.5 

1.5 

1.2

1.2 

1.2 

1.2 

1.2 

1.5

1.2. 

1.2 

1.2 

1.2 

1.2

1.2

1.2 

1.2

1.2

1.2

Runoff in 

acre-feet

187 

469 

774

12,080

655 

922 

1,400 

1,140 

580 

259 

87 

69 

79

6,630
136 SANTA CLARA RIVER BASIN

Hopper Creek near Piru, Calif.

Location.- Water-stage recorder, lat. 34°P3'55", long. 118°49<40", on south line of NW 

 sec. as, T. 4 N., R. 19 W., at highway bridge 2 miles southwest of Piru.

Drainage area.- 23.0 square miles.

Records available.- October 1930 to September 1933, October 1933 to September 1936, OctoDer lysv to September 1948.

Average discharge.- 16 years (1930-32, 1933-36, 1937-< 5.12 second-feet.

Extremes.- Maximum discharge during year, 100 second-feet Mar. 24; no flow for several 

months.

1930-32, 1933-36, 1937-48: Maximum discharge, 8,000 second-feet Mar. 2, 1938; 

no flow for several months during most years.

Cooperation.- Records furnished by Ventura County Water Survey.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

28

29

31

Oct. Nov. Dec. Jan. Feb.

0

0

0

0

.7

2.6

1.3

.5

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

_

-

Month

December ...................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

1.1

3.2

1.3

1.0

4.6

2.0

1.1

1.1

.6

.4

.3

23

8.4

4.3

3.2

2.8

2.3

2.0

1.5

Apr.

1.0

1.2

10

3.0

2.1

1.7

1.2.9'

.8

.8

.7

.6

.6

.5

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

11

4.3

Secondfoot-days

0

0

0

179.6

9 2

0

128.7

May

1.7

1.2

1.0

.8

.6

.4

.4

.3

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Maximum

0

0

0

7.8

0

23

June

0.1

.3

.2

.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

Minimum

0

0

0

0

0

0

July Aug.

Mean

0

0

0

.49

2.11

1.50

0

.35

Sept.

Runoff in 

acre-feet

0

0

0

356

130

89

0

255
SANTA CLARA RIVER BASIN 137

Respe Creek .near Wheeler Springs, Calif.

Location.- Water-stage recorder, lat. 34°34'40", long. 119°15'25", in SW^SWij sec. 30, T. 

t> N., R. 22 W., at Sespe Gorge, 1.6 miles upstream from Tule Creek, 5 miles upstream 

from Cold Springs dam site, and 5 miles north northeast of Wheeler Springs. Altitude 

of gage, about 3,500 feet.

Drainage area.- 50 square miles.

Records available.- January to July 1948 (discharge measurements only), July to September

J.94H.

Remarks.- Records good. No diversion or regulation above station.

Cooperation.- Gage-height record and 30 discharge measurements furnished by Ventura

County Water Survey.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

_

_

-

_

-

.

_

-

_

-

_

-

_

_

tl.O

_

_

-

_

-

_

t.9

-

_

-

_

_

-

tl.O

-

-

Feb.

_

_

_

_

-

.

_

_

_

-

_

to. 9

_

_

-

_

_

-

tl.3

-

_

_

-

_

-

tl.3

tl.2

-

_

-

-

Month

October. ...................................

November . ..................................

December. ...................................

Calendar year ~ ......................

January ....................................

February ...................................

March ......................................

April ......................................

May. .......................................

June .......................................

July... .....................................

August .....................................

September. .................................

The period ....... ......................

Mar.

_

_

-

tl.3

-

_

_

_

..

-

tl.3

-

_

.

-

.

.

tl.7

_

-

_

_

tl.5

_

-

.

_

-

_

-

-

Apr.

tl.9

_

_

_

-

_

_

t2.o

_

-

.

_

_

_

tl.6

._

_

_

_

tl.5

.

tl.5

_

-

.

_

_

t5.6

_

-

Secondfoot-days

_

_

_

_

_

_

3.1

3.0

-

May

.

_

-

_

-

tl.8

_

_

_

-

_

_

_

tl.3

_

_

tl.l

_

tl.4

_

_

_

-

_

tl.l

_

_

_

-

Maximum

_

_

_

_

_

_

0.1

.1

_

June

tl.O

_

t3.O

_

-

_

_

_

_

tl.2

_

-

_

_

-

_

t.8

_

-

.

_

_

t.8

-

.

_

t.4

_

-

-

Minimum

_

_

_

_

_

_

0.1

.1

_

July

_

_

_

_

-

_

_

to. 3

_

-

_

t.3

_

_

-

.

_

-

_

-

_

t.l

-

_

-

_

_

.1

.1

.1

.1

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

 Runoff in Mean acre-feet

_

_

_

_

_

_

0.10 6.1

.10 6.0

12

t Result of discharge measurement.
138 SANTA CLARA RIVER BASIN

Sespe Creek near Fillmore, Calif.

Location.- Water-stage recorder, lat. 34°26'55", long. 118°55'35", in NE^ sec. 12, T. 4 

N., K. 20 W., 0.1 mile downstream from Little Sespe Creek and 3.5 miles north of 

Pillmore. Altitude of gage, about 590 feet.

Drainage area.- 254 square miles.

Records available.- November 1934 to September 1948. September 1911 to September 1913 

ana October 1927 to November 1934 at site at Sespe, 3 miles downstream.

Average discharge.- 21 years (1927-48), 108 second-feet.

Extremes.- Maximum discharge during year, 748 second-feet Mar. 24 (gage height, 7.53 

reet); minimum daily, CL2 second-foot on many days during July to September.

1927-48: Maximum discharge, 56,000 second-feet Mar. 2, 1938, by slope-area method; 

no flow except slight return seepage from Pillmore Canal during the lowest part of irrigation season in most years.

Remarks.- Records good. Pillmore Irrigation Co.'s canal diverts 1 mile above station 

(see following page).

Revisions (water years).-W 901: 1938, 1939.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.6

.6

.6

.6

.6

.6

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4 '.3

.3

.3

.4

.4

.5

.5

.4

Nov.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

-

Dec.

0.4

.3

.3

.5

6.8

12

7.8

6.7

6.1

5.6

5.6

5.1

4.7

4.3

4.7

4.7

4.3

4.0

4.0

4.0

4.7

4.7

4.7

4.3

4.3

3.6

2.2

1.6

1.2

1.2

1.2

Jan.

1.2

1.2

1.4

1.4

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

1.4

1.6

1.4

1.4

1.4

1.4

1.4

1.3

.6

.3

.3

.3

.3

.6

Feb.

1.8

2.0

2.2

2.2

23

33

28

19

14

13

12

12

11

11

9.5

7.8

7.2

7.8

7.2

6.7

6.7

6.7

6.7

6.7

5.1

4.3

4.3

4.7 5.1'

_

-

Month

December. ...................................

Calendar year 1947 ......................

March ......................................

April ......................................

Hay. .......................................

September. .................................

Water year 1947 -48 ......................

liar.

5.1

5.6

4.0

3.0

2.7

2.7

2.4

2.0

1.1

1.1

.9

.8

5.5

15

12

9.6

28

21

18

17

15

14

13

230

S5

47

33

28

29

,28

32

Apr.

24

26

100

75

52

38

31

28

27

26

27

28

24

23

22

20

19

19

18

18

18

18

17

13

12

8.9

6.1

10

65

41

-

Secondfoot-days

125.6

5,792.3

32 4

8 3

6.0

2,213.5

May

27

21

13

8.3

6.7

5.6

5.6

4.7

4.0

2.4

2.2

2.0

1.4

1.1

.9

.9

.8

.8

.9

.9

.8

.7

.7

.8

.8

.9

.9

.9

.8

.8

.9

Maximum

12

205

.2

230

June

1.1

.9

2.1

7.0

5.6

4.0

2,0

.9

.8

.6

.6

.5

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.3

.4

.4

.4

.4

-

Minimum

.3

.2

.2

.2

July

0.3

.3

.3

.3

.2

.5

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

Mean

45

4.05

15.9

23

.20

6. OS

Sept.

O.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

-

Runoff in 

acre-feet

249

11,490

236

12

4,380

Peak discharge (base, 1,3OO sec.-ft.).- No -peak above base.
SANTA CLARA RIVER BASIN 139

Fillmore Irrigation Co.'s canal near Pillmore, Calif.

Location.- Water-stage recorder and Parshall flume, lat. 34°27'15", long. 118°55'35", in 

SEi;- sec. 1, T. 4N., R.-20 W., 4 miles north of Pillmore. Altitude of gage, about 

660 feet.

Records available.- October 1927 to September 1932 (monthly discharge), October 1935 to 

September 1939 (yearly discharge), October 1939 to March 1940 (monthly discharge), 

April 1940 to September 1948.

Average discharge.- 18 years (1927-32, 1935-48), 5.95 second-feet.

Extremes.- Maximum daily discharge during year, 13 second-feet May 10-12; minimum daily, 

u.y second-foot Mar. 25.

1940-48: Maximum daily discharge, 16 second-feet for several days in occasional 

years; no flow at times during 1941-43.

Remarks.- Records good. Canal diverts water from Sespe Creek in SE-j sec. 1, T. 4 N., R. 

20 W., 1 mile above station on Sespe Creek near Fillmore (see preceding page).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.0

4.1

4.0

3.8

3.9

4.0

4.2

4.3

4.4

4.6

4.7

4.5

4.5

4.5

4.6

4.6

4.7

4.6

4.4

4.4

4.3

4.3

4.3

4.2

4.2

4.2

4.3

4.7

4.8

4.8

Nov.

.7

.6

.5

.4

.5

.2

.2

.2

.4

.4

.4

.4

.4

.5

.6

.7

.7

.7

.8

.8

.9

.9

.8

.8

.8

.8

.9

5.1

5.1

5.1

-

Dec.

5.2

5.2

5.1

6.4

3.8

1.3

1.1

1.5

1.8

1.8

1.7

1.7

2.2

2.6

2.6

2.4

3.2

3.7

3.6

3.7

3.7

3.6

3.5

3.6

3.7

4.3

5.6

6.3

6.6

6.7

6.8

Jan.

.8

.0

.1

.1

.2

.2

.1

.1

.0

.0

.0

.0

.0

.0

.0

.0

.1

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.6

Feb.

7.7

7.7

7.6

7.6

4.0

2.4

1.9

1.5

1.8

2.0

2.1

2.3

2.3

2.3

3.4

4.5

4.4

3.6

5.3

5.2

5.1

4.8

4.5

4.8

5.9

7.0

7.2

7.3

7.4

_

-

Month

December. ..................................

Calendar year 1947 ......................

March. .....................................

Unv

September. .................................

Water year 1947 48 ......................

Mar.

6.6

6.2

7.4

8.3

8.2

8.2

8.2

9.0

9.6

9.6

9.5

9.4

9.2

8.6

8.5

8.4

3.8

1.4

1.6

1.6

1.6

1.1

1.1

1.0

0.7

1.8

1.7

1.4

1.6

1.8

1.8

Apr.

1.9

1.9

1.9

1.8

1.8

1.8

1.8

1.

1.

1.

1.

1.

1.

1.

1.

1.9

2.0

2.0

2.0

1.9

2.0

2.0

2.4

4.1

4.7

7.2

8.9

9.6

8.8

6.4

-

Secondfoot-days

115.0

2,302.4

76.2

1,807,8

May

6.6

5.2

10

11

11

1111

12

11

13

13

13

12

12

12

11

11

11

11

11

11

11

11

10

10

10

9.8

9.7

9.4

9.1

9.5

Maximum

6.8

15

3.0

13

June

9.5

10

11

12

9.6

9.4

10

10

9.4

8.8

8.6

8.3

7.9

7.4

7.1

6.7

6.4

6.0

5.8

5.7

5.5

5.4

5.2

5.1

5.0

5.0

4.8

4.6

4.5

4.2

-

Minimum

1.1

1.1

2.0

.7

July

4.0

3.8

3.7

3.7

3.3

3.2

3.4

3.4

3.3

3.2

3.1

3.1

3.2

3.2

3.1

3.0

3.0

3.1

3.2

3.3

3.2

3.1

3.1

3.2

3.1

3.0

3.0

3.0

3.1

3.0

3.0

Aug.

3.0

3.0

3.0

3.0

3.0

2.9

2.6

2.8

2.8

2.8

2.9

2.9

2.9

2.9

2.9

2.8

2.7

2.6

2.6

2.6

2.6

2.7

2.7

2.7

2.7

2.8

3

2.8

2.6

2.5

2.4

Mean

3.71

6.31

2^54

4.94

Sept.

2.4

2.4

2.3

2.3

2.3

2.4

2.4

2.4

2.4

2.3

2.2

2.2

2.1

2 .0

2.2

2.3

2.4

2.7

2.8

2.8

3.0

3.0

3.0

3.0

3.0

3.0

2.8

2.7

2.7

2.7

Runoff in 

acre-feet

228

4,570

151

3,580
140 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

 Ex Mission Pan Buenaventura Grant, 15 feet upstream from Santa Paula Water Works diversion dam and 3 miles north of Santa Paula, Venttira County. Altitude of gage, about 

650 feet.

Drainage area.- 39.8 square miles.

Records available.- October 1927 to September 1948. April 1912 to September 1913 at site

 a.b miles upstream. October 1927 to February 1931 at site 500 feet downstream, below 

diversion of Santa Paula Water Works.

Average discharge.- 21 years (1927-48), 21.2 second-feet.

Extremes.- Maximum discharge during year, 85 second-feet Mar. 24 (gage height, 2.59 feet); 

minimum daily, 0.4 second-foot Aug. 27, 28.

1927-48- Maximum discharge, 13,500 second-feet Mar. 2, 1938 (gage height, 10.56 

feet), by slope-area method; minimum daily, 0.1 second-foot Aug. 19-21, 26-29, 1942.

Remarks.- Records fair. Diversions for irrigation above station and for municipal use below station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.0- 

.8 

.7 

.9 

1.7

1.7

1.0 

1.0

1.2

1.1

1.4 

1.8 

1.1

1.0 

1.8 

2.2 

1.5

.7

1.2 

2.4 

1.4 

1.0 

.5

1.2 

2.0 

2.2 

2.5 

2.4 

2.2

Nov.

2.2 

2.4 

2.5 

2.4 

2.2

2.0

1.8 

2.0 

2.0

1.5

.9

1.0 

1.0

1.6 

1.8 

2.0 

2.2 

2.2

2.4 

2.4 

2.4 

2.4 

2.2

2.0 

2.7 

2.5 

2.5 

2.7

Dec.

2.0 

2.0 

1.5 

2.8 

3.8

3.1

2.7 

2.7 

2.7

2.7

2.5 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.7

2.9 

2.9 

2.9 

2.9

3.1

3.1 

3.1 

3.1 

3.1 

3.3 

3.1

Jan.

2.4 

2.2 

2.2 

2.4 

2.4

2.4

2.4 

2.2 

2.2

2.0

1.7 

2.0 

2.0

1.8 

1.8 

2.0 

1.8 

1.7

1.5 

1.5 

1.5 

1.8 

2.5

2.5 

2.5 

2.5 

2.7 

2.7 

2.7

Feb.

2.7 

2.0 

1.8 

1.8 

5.8

5.8

3.5 

3.3 

3.1

3.1

3.1 

3.1 

2.9

2.9

2.9 

2.7 

2.4 

1.7

1.4 

2.0 

2.4 

2.4 

2.4

1.7 

1.7 

1.8 

1.7

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

Uflv

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ..................................

lendar year 1947 

ary

1... ...................................

St. ....................................

ember. .................................

ter year 1947-48 ......................

Mar.

.0 

.7 

.5 

.4 

.2

.1

.2

.4 

.2

.1

.9 

.7 

.5

.3 

.5 

.3 

.3 

.1

2.9 

2.5 

2.9 

20 

9.0

5.8 

5.3 

5.3 

5.6 

5.3 

5.0

Apr.

5.0 

5.3 

15 

13 

9.6

8.6

7.1 

6.4 

6.7

5.8

5.0 

4.7 

4.7

4.5 

4.5 

4,5 

4.5

4.5

4.5 

4.5 

4.5 

4.2 

4.2

4.2 

4.0 

5.6 

11 

6.4

Secondfoot-days

43.8 

60.8 

85.1

1,780.2

66.2 

79.4 

115.6 

185.2 

91.7 

40.2 

44.6 

28.7 

24.1

865.4

May

5.C 

4.5 

4.5 

4.2 

4.C

4.C

4.0 

3.8 

3.2

2.9

2.5 

2.4 

2.2

2.0 

2.0 

1.8 

2.2 

2.4

2.5 

2.4 

2.7 

2.9 

2.7

2.5 

2.4 

2.2 

 2.2 

2.4 

2.4

Maximum

2.5 

2.7 

3.8

35

2.7 

5.8 

20 

15 

5.0 

2.2 

1.8 

1.4 

1.1

20

June

2.2 

1.5 

1.2 

1.4 

1.1

1.0 

.9 

.9 

1.4 

1.5

1.4

1.1 

1.2 

1.8

1.8

1.8 

1.8 

2.0 

2.0

1.5 

1.4 

1.4 

1.2 

.8

.9 

1.2 

1.0 

.9 

.8

Minimum

0.5 

.9 

1.5

.3

1.5 

1.4 

1.1 

4.0 

1.8 

.8 

1.0 

.4 

.5

.4

July

1.0 

1.7 

1.8 

1.8 

1.5

1.5

1.2 

1.2 

1.2 

1.0

1.1

1.7 

1.4 

1.4

1.4 

1.5 

1.7 

1.7

1.8

1.7 

1.8 

1.7 

1.5 

1.4

1.4 

1.4 

1.4 

1.2 

1.1 

1.0

Aug.

1 

1

Mean

1.41 

2.03 

2.75

4.88

2.14 

2.74 

3.73 

6.17 

2.96 

1.34 

1.44 

.93 

.80

2.36

.2 

.4 

.4 

.2

.2

.1 

.2 

.2 

.2 

.1

.0 

.0 

.1 

.2 

.8

.8 

.7 

.8 

.9 

.9

.0 

.0 

.9 

.9 

.5

.6 

.4 

.4 

.5 

.5 

.6

Sept.

0.6 

.7 

.5 

.7 

.8

.9 

.9 

1.0 

.6 

.5

.6

.7 

.6 

.7 

.8

l.C 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.0 

.9 

.9

.7 

.6 

.6 

.7 

.5

Runoff in 

acre-feet

87 

121 

IS 9

3,540

131 

157 

229 

367 

182 

80 8'8 

57 

48

1,720

Peak discharge (base, 200 see.-ft.).- Ho peak above base.
VENTURA RIVER BASIN 141

Matilija Creek above reservoir, near Matilija, Calif.

Location.- Water-stage recorder, lat. 34°29'40", long. 119°19'45", in SE^SW^ sec. 19, T. 

 J> N., R. 23 W., 2 miles upstream from Matilija Dam and 1.7 miles west northwest of 

Matilija. Datum of gage is 1,160 feet above mean sea level (Ventura County Survey).

Drainage area.- 51 square miles.

Records available.- May to September 1948.

Remarks.- Records good. No diversion or regulation above station.

Cooperation.- Gage-height record and 26 discharge measurements furnished by Ventura County 

Water Survey.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

December. ...................................

Calendar year ......................

March. ......................................

April ......................................

September. .................................

The period ...............................

Mar. Apr.

.

-

-

~

-

_

-

_

,

-

_

-

_

-

-

_

-

-

-

-

.

t4.8

-

-

-

_

-

-

-

t7.7

-

Secondfoot-days

33 9

25.1

-

May

.

-

t5.7

t5.8

-

t5.1

t5.6

_

-

-

.

-

t4.3

_

.-

_

-

-

-

t3.7

_

-

-

-

-

_

t3.5

f3.2

3.2

3.3

3.3

Maximum

1.1

-

June

3.2

a3.2

f3.3

3.3

3.3

3.2

3.1

3.0

3.0

2.8

2.7

2.7

2.6

2.6

2.6

2.5

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.1

2.0

2.0

-

Minimum

.6

-

July

2.0

2.0

2.0

1.9

1.9

1.8

1.8

1.8

1.8

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.4

1.4

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

Aug.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1 .

Mean

1 54

.84

-

Sept.

0.

1 . 1.

1.

1.

1 . 1.

1.

1.

1.

1.0

1.0

1.0

-

Runoff in 

acre-feet

50

624

Peak discharge (base, 100 sec. -ft.).- No peak above base. 

t Result of discharge measurement.

a No gage-height record; discharge interpolated.

e Computed on basis of 7 discharge measurements, available figures of daily discharge, and weather 

records.

f Computed on basis of partly estimated gage-height record.
142 VENTURA RIVER BASIN

Matilija Reservoir at Matillja, Calif.

Location.- Water-stage recorder, lat . 34°29'00", long. 119°18'30", In SEtr sec. 29, T. 5 

NT, R. 23 W., at Matillja Dam, 0.2 mile northwest of Matillja. Datum of gage is 1,000.0 

feet above mean sea level (Ventura County Survey). Gage height of spillway orest, 125.0 

feet.

Drainage area.- 54.6 square miles.

Records available.- March to September 1948.

.- Maximum contents during year, 351 acre-feet May 8 (gage height, 29.90-feet). 

orage prior to Mar . 14 .

Remarks . - Reservoir is formed by concrete dam. Sluice gate was first' closed and storage 

Began Mar. 14, 1948. Water surface first reached outlet gate Apr. 2, 1948. Capacity 

below sluice gate (gage height, 0.0 foot) is zero; below outlet gate (gage height, 

25.0 feet), 250 acre-feet; below spillway level (gage height, 125,0 feet), 7,018 acrefeet. Capacity and area ratings for reservoir are based on surveys made in 1948. 

Water released from reservoir passes down natural channel of Matillja Creek. Records 

show contents at 12 p.m.

Cooperation.- Reservoir ratings and gage-height records furnished by Ventura County Water 

survey.

Extremes.- Maxi 

NO s

Contents at 12 p.m., in acre-feet, March to September 1948

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. Nov. Dec. Jan. Feb. Mar.

_

_

_

_

-

_

_

_

_

-

_

hO

-

_

_

_

-

_

h60

-

_

_

_

_

-

Apr.

h236

h250

_

_

-

_

_

_

_

-

_

_

_

,

-

_

.

_

_

h270

_

_

_

_

-

_

_

_

h283

Hay

_

_

h320

333

343

348

350

346

337

331

329

329

327

323

319

316

313

310

308

306

304

302

298

296

295

293

291

289

288

288

287

June

286

285

284

283

282

281

279

278

277

275

274

272

271

269

268

265

264

264

263

263

263

263

263

263

263

263

263

262

262

262

-

July

262

261

261

261

261

261

260

260

260

260

259

259

259

259

259

259

259

259

259

259

259

259

259

259

259

259

259

259

259

258

258

Aug.

258

258

258

258

258

258

258

258

258

258

257

257

257

257

257

257

257

257

257

257

257

257

257

257

257

257

257

257

257

257

257

Sept.

257

257

257

256

256

256

257

257

256

256

256

244

238

232

227

225

222

219

215

212

209

207

206

205

204

202

201

200

198

197

-

h Based on single determination of height of water surface earlier than 12 p.m. 

Note.- Storage began Mar. 14, 1948.

Monthly elevation and contents at 12 p.m., March to-September 1948

Date

Sept. 30.. ..................

Gage height 

(-feet)

(a)

21.56

"Contents 

-(acre-feet)

197

Change In contents 

during month 

(acre-feet)

+220

+70

-25

-1

-60

a Below 0.0 foot, 

e Estimated.
VENTURA RIVER BASIN 143

Matlllja Creek at Matillja, Calif.

Location.- Water-stage recorder, lat. 34°28'50", long. 119°18'06", In SW£ sec. 28, T. 5 

N., R. 23 W., 0.1 mile southeast of Matlllja and 0.2 mile upstream from North Pork. 

Altitude of gage, about 950 feet.

Drainage area.- 55 square miles.

Records available.- October 1927 to September 1948.

Average discharge.- 20 years (1927-47, unregulated), 36.7 second-feet.

Extremes.- Maximum daily discharge during year, 12 second-feet Apr. 14; minimum daily, 0.1 

second-foot Nov. 22, 30, Mar. 27 to Apr. 1.

1927-48: Maximum discharge, 15,900 second-feet Mar. 2, 1938, by slope-area method; 

minimum daily, 0.1 second-foot on several days in 1947-48.

Remarks.- Records fair. No" diversion above station. Slight regulation by construction 

activities at Matilija Dam, 0.4 mile above station; full regulation after Mar. 14, 1948.

Cooperation.- Sixty discharge measurements furnished by Ventura County Water Survey. 

Revisions (water years).- W 931: 1939, 1940 .

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

V

8

11

13

15

16

18

21

26

Oct.

1.5

1.5

2.1

1.2

1.2

1.5

2.2

2.6

1.6

2.7

1.6

1.5

1.4

1.8

3.4

1.8

3.1

2.7

.7

2.0

1.9

1.0

1.5

1.5

1.5

1.4

1.6

1.7

1.9

1.9

1.8

Nov.

2.0

1.8

2.0

1.9

2.0

2.0

1.7

2.2

1.9

2.0

2.1

2.2

2.0

2.0

2.1

2.2

1.3

1.3

2.5

1.5

.5

.1

2.0

1.2

2.4

2.0

.3

1.1

.3

.1

Dec.

2.7

3.1

2.9

2.9

2.9

3.3

3.3

3.3

3.3

3.3

3.1

2.3

3.3

4.6

4.3

3.8

3.8

3.3

3.4

4.0

3.8

3.5

3.5

3.3

3.3

3.3

3.3

3.5

3.5

3.5

3.3

Jan.

3.3

3.3

3.3

3.3

3.1

3.1

3.1

3.1

2.9

2.7

2.4

3.5

4.3

3.5

3.5

3.8

3.8

4.0

4.3

4.6

4.6

4.9

4.9

4.9

4.9

3.8

2.3

2.9

3.4

2.8

3.8

Feb.

3.8

3.5

3.3

3.1

3.8

4.6

6.5

4.9

4.9

4.9

4.9

4.6

4.6

4.6

4.0

3.8

3.8

4.O

4.0

4.0

3.8

3.8

3.8

4.0

4.0

4.0

4.0

4.0

4.0

-

Month

December. ..................................

Calendar year 1947 .....................

March. .....................................

April ......................................

Mav

September. .................................

Water year 1947-48 ......................

Mar.

4.6

4.3

4.3

4.0

4.0

3.8

4.0

4.0

4.0

4.3

4.6

4.6

4.9

3.6

1.6

2.. 7

3.1

3.1

3.3

3.8

3.8

4.0

4.0

2.5

.3

.2

.1

.1

.1

.1

.1

Apr.

o.l

.2

1.2

4.6

7.0

7.0

7.5

7.5

7.5

4.8

1.9

2.3

6.6

12

11

8.1

6.5

5.7

5.7

5.7

5.7

5.7

S.I

5.7

5.3

4.9

4.9

6.1

11

6.1

-

Secondfoot-days

55.8

48.7

104.7

2,658.9

112.1

121.0

91.9

174.4

149.9

107.5

55.6

33.4

52.1

1,107,1

May

1.7

1.9

1.7

1.1

.8

2.2

4.3

6.8

9.3

8.1

5.7

4.6

5.3

6.5

6.1

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.3

4.9

4.9

4.9

4.9

4.6

4.6

4.9

4.9

Maximum

3.4

2.5

4.6

55

4.9

6.5

4.9

12

9.3

4.9

2.7

1.2

3.7

12

June

4.9

4.9

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.0

4.0

4.0

3.8

3.8

3.3

3.3

3.3

3.1

3.1

2.9

2.9

2.9

2.9

2.9

3.1

2.7

2.9

2.9

2.9

2.9

-

Minimum

0.7

.1

2.3

.1

2.3

3.1

.1

.1

.8

2.7

1.2

.8

.7

.1

July

2.7

2.7

2.4

2.4

2.3

2.1

2.0

1.9

1.9

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.7

1.7

1.7

1.7

1.9

1.7

1.6

1.6

1.6

1.5

1.5

1.4

1.3

1.3

1.2

Aug.

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.0

1.0

1.0 i.o

1.0

.9

.9

.9

.9

.9

.8

.8

Mean

1.80

1.62

3.38

7.28

3.62

4.17

2.96

5.81

4.84

3.58

1.79

1.08

1.74

3.02

Sept.

0.8

.8

.8

.8

.8

.7

.7

.7

.8

.7

.7

2.8

3.7

3.6

3.5

2.0

2.5

2.5

2.7

2.7

2.7

2.3

1.6

1.7

1.5

1.6

1.6

1.6

1.6

1.6

-

Runoff in 

acre-feet

111

97

208

5,270

222

240

182

346

297

213

110

66

103

2,200
L44 VENTURA RIVER BASIN

Ventura River near Ventura, Calif.

Location.- Water-stage recorder, lat. 34°20'55", long. 119°18'20", in southeast corner 

 of Santa Ana Grant, in Foster Memorial Park, at abutment of former highway bridge 

150 feet downstream from present highway bridge, 500 feet downstream from low-water 

mouth of Coyote Creek, 0.3 mile downstream from Ventura diversion dam, and 5 miles 

north of Ventura, Ventura County. Altitude of gage, about 210 feet.

Drainage area.- 187 square miles.

Records available.- September 1911 to January 1914, October 1929 to September 1948.

Average discharge.- 21 years (1911-13, 1929-48), 71.0 second-feet.

Extremes.- Maximum discharge during year, 2.4 second-feet Mar. 24 (gage height, 2.16 

reet); no flow for several months.

1911-13, 1929-48: Maximum discharge, 39,200 second-feet Mar. 2, 1938 (gage 

height, 19.2 feet), computed by slope-area and contracted-opening methods; no flow 

at times in many years.

Remarks.- Records fair. Water diverted from Ventura River and tributaries for irrigation 

and municipal supply.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Ib

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

3D

31

Oct. Nov. Dec. Jan. Feb.

Month

December ...................................

Calendar year 1947 -. .....................

April ......................................

May. .......................................

September. .................................

Water year!947-48 ......................

Mar.

0

c

0

o

0

0

0

0

0

0

o

0

0

o

0

0

0

0

0 

0

0

0

0

.2

.1

O

0

0

o

0

0

Apr.

O

0

0

0

0

0

0

0

0

0

0

o

0

0

0

P

0

o

0 

0

o

o

.1

.1

.1

.1

.1

.1

.1

.1

Secondroot-days

0

o

2,270.4

0

9.21

1.84

O

23.25

Peak discharge (base, 5OO sec. -ft. .- No peak above b

May

0.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.2

.2

.2

.3 

.4

.4

.4

.4

.4

.4

.4

.2

.1

.1

.1

.1

Maximum

0

o

67

0

.1

.3

0

.9

ase .

June

I

J

.1

.1

.1

.2

.2

.4

.4

.5

.5

.6

.7

.7 

.9

.7

.9

.5

.3

.2

.2

.2

.2

.2

.2

-

Minimum

0

0

0

0

0

o

o

0

o

July

0.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

.1

.1

.1

.2

.2

.2

.2

.3

.3

.3

.3

Aug.

0.3.3'

.3

.3

.2

.1

.1

i e.Ol

Mean

o

0

0

6.22

O

 .03

.31

.06

0

.064

Sept.

Runoff in 

acre-feet

o

0

0

4,500

O

1.6

18

8.9

3.6

0

46
VENTURA RIVER BASIN 145

North Fork Matilija Creek at Matilija, Calif.

Location.- Water-stage recorder, lat. 34°29'15", long. 119°18'20", in NE^ sec. 29, T. 5 

N., K. 23 W., at highway bridge O.b mile upstream from mouth and 0.5 mile north of 

Matilija.

Drainage area.-. 15.5 square miles.

Records available.- October 1928 to September 1932, October 1933 to September 1948.

Average discharge.- 19 years (1928-32, 1933-48), 10.1 second-feet.

Extremes.- Maximum discharge during year, 18 second-feet Apr. 28; minimum daily, 0.3 second-root on several days during July, August, September.

1928-32, 1933-48: Maximum discharge, 5,580 second-feet Mar. 2, 1938; minimum, 0.1 

second-foot Aug. 27 to Sept. 9, 1929, July 27 to Aug. 16, 1931.

Cooperation.- Records furnished by Ventura County Water Survey.

Discharge, in second-feet, water year October 1947 to September 1948

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.

.6 

.6 

. 

.6 

.5

.5 

.6 

.5 

.6 

.6 

.6

Nov.

0.6 

.7 

.8 

.6 

.7

.7 

.8 

.7

.8 

.8

.9

.8 

.8

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.8

Dec.

0.8 

.9

.9

1.1 

1.2

1.1 

1.1 

1.0

.8 

.8

,8

.8 

.8 

.8

.9 

.8 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9 

.9

Jan.

0.9 

.9 

1.0 

1.0

1.1

.9 

.9 

.9

.9

.9

.9

.9 

.9

.8

.8 

.8 

.8 

.9 

.9

.9 

.9 

.9 

.9 

.9 

.9

Feb.

1.0 

.9 

.9

1.0 

3.5

.5

.8

.5

.2

.2

.2

.1 

.1

.1

.1 

.1 

.1 

.2 

.2

.2 

.2 

.2 

.4

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Hare 

Apri 

Bay.

June 

Jnly 

Augu 

Sept

Wa

ber... .................................

mber. ..................................

lendar year 1947 

ary

'

h.. ....................................

ember. .................................

tor year 1947-48 ......................

Mar.

1.2 

1.2 

1.2 

1.2 

1.2

1.3 

1.3

1.3

1.4

2.9

1.8

1.8 

2.1 

1.8

1.8 

1.7 

1.7 

9.2 

5.7

3.0 

2.6 

2.4

2.2 

2.1 

2.1

Apr.

2.0 

2.1 

4.4 

3.4 

2.7

2.6 

2.4 

2.3

2.1 

2.0

1 9

1.9

1.8 

1.7 

1.7

1.7 

1.8 

1.8 

1.8 

1.7

1.7 

1.6 

3.2 

6.4 

2.8

Secondfoot-days

17.7 

22.3 

27.9

720.5

27.7 

38.2 

66.7 

69.8 

47.4 

28.1 

13.5 

11.2 

12.8

383.3

May

.6 

.3 

.2 

.0 

.9

.8 

.8 

.8

.6

.5

.3

.2 

.3 

.3

.3

.2 

.2 

.3 

.2

.2 

.3

1.2 

1.2 

1.2 

1.3

Maximum

0.8 

.9

1.2

14

1.1 

3.5 

9.2 

6.4 

2.6 

1.2 

.6 

.4 

.6

9.2

June

1.2 

1.2 

1.2 

1.2 

1.2

1.1 

1.1 

1.1

1.0 

1.0

.9

.8 

.9 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.7 

.6 

-.6

Minimum

0.4 

.6 

.8

.4

.8 

.9 

1.2 

1.6 

1.2 

.6 

.3 

.3 

.3

.3

July

0.6 

.6 

.6 

.6 

.5

Aug.

0. 4 

4 

3 

3 

3

3 

3 

4

4 

4

.4 

.4

.4

.4 

.3 

.3

.3 

.3 

.4 

.4 

.4

.4 

.4 

.4 

.3 

.3 

.3

Mean

0,57 

.74 

.90

1.97

.89 

1.32 

2.15 

2.33 

1.53 

.94 

.44 

.36 

.43

1.05

Sept.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

.4 

.4

.4

.4 

.4 

.4

.5 

.5 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

Runoff in 

acre-feet

35 

44

55

1,430

55 

76 

132 

138 

94 

56 

27 

22 

25

759
146 VENTURA RIVER BASIN

Coyote Creek near Ventura, Calif.

Location.- Water-stage recorder, lat. 34°21'20", long. 119°18'50", near southeast corner 

or Santa Ana Grant, 200 feet" downstream from highway bridge, 0.2 mile upstream from 

mouth, and 5.5 miles northwest of Ventura, Ventura Cpunty. Altitude of gage, about

240 feet.

Drainage area.- 41.1 square miles.

Records available.- October 1927 to September 1932, October 1933 to September 1948.

Average discharge.- 20 years, 14.3 second-feet.

Extremes.- Maximum discharge during year, 8.0'second-feet Mar. 24 (gage height, 1.53 

reet); minimum daily, about 0.01 second-foot during September.

1927-32, 1933-48: Maximum discharge, 11,500 second-feet Mar. 2, 1938, by slopearea method; practically no flow during parts of several years.

Remarks.- Records good.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

' 0.05

Nov.

> 0.05

-

Dec.

> 0.06

1 .2

.1

.1

.08

.1

.1

.1

.1

.2

.2

.1

.1

\

IS .09

I

.08

Jan.

> 0.08

.07

Feb.

^ 0.07

.1.4'

.3

.1

.1

.1

.08

.07

> .06

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1947 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

Hay. Uftv .......................................

June .......................................

July .......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

 0.06

.08

l!

.1

.1

Apr.

0.1

.1

.4

.2

.1

.2

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

t l

.1

.07

.3

.2

.1

Second 

foot-days

1.55

1.50

2.95

387.91

2.37

2.68

4 . 62

3.75

2.03

1.30

. 87

.62

.30

24.54

May

0.1

.1

.08

 .07

, .06

.05

Maximum

_

.2

13

0.4

1.2

.4

.1

_

-

1.2

June

, 0.05

> .04

Minimum

_

-

_

_

_

_

-

_

July

i- 0.04

, .03

. .02

Aug.

> 0.02

Mean

0.05

.05

.95

1.06

.76

.92

.15

.12

.07

.04

.03

.02

.01

.067

Sept.

 o.oi

Runoff in 

acre-feet

3.1

3.0

5.9

771

4.7

5.3

9.2

7.4

4.0

2.6

1.7

1.2

.6

49

Peak discharge ^base, 450 sec. -ft.).- No peak above base.
CARPINTERIA CREEK BASIN

Carpinteria Creek near Carpinteria, Calif.

Location.- Water-stage recorder, lat. 34°24 I 00", long. 119°29'25", at bridge on State

Highway 150, in El Rincon Grant, 400 feet downstream from Gobernador Creek and 2 4 miles 

northeast of Carpinteria, Santa Barbara County. Altitude of gage, about 150 feet.

Drainage area.- 13.8 square miles.

Records available.- January 1941 to September 1948.

Extremes.- Maximum discharge during year, 22 second-feet Mar. 24 (gage height, 2.64 feet); 

no now during year except on Mar. 24, 85.

1941-48: Maximum discharge, 1,450 second-feet Jan. 22, 1943 (gage height, 7.30 feet) 

from rating curve extended above 600 second-feet; no flow at times each year.

Remarks.- Records good. Small lake above station catches storm runoff from 0.74 square 

mTIeT which is drained past station by pumping; probably no flow from this lake this 

year.

Revisions (water year).- w 1061: 1943.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

2324'

25

26

27

28

29

30

31

Oct. 'Nov. Dec. Jan. Feb.

Month

November. ..................................

December. ...................................

Calendar year 1947 ......................

March. ....................'.................

May. .......................................

September . .................................

Water year 1947-48 ......................

Mar.

o

o

0

0

0

0

0

0

0

0

o

0

0

0

o

0

0

0

0

0

0

0

0

2.3

.1

O

0

0

0

0

0

Apr.

Secondfoot-days

0

4.3

O

2.4

May

Maximum

o

1.5

2 3

0

2.3

June

Minimum

0

0

0

0

July Aug.

Mean

0

.01

0

.01

. Sept .

Runoff in 

acre-feet

o

8.5

0

4.8

Peak discharge (base. 35 see.-ft.).- No peak above base.
Atascadero Creek near Goleta, Calif. 

(Formerly published as Alascadero Creek near Goleta, Calif.)

Location.- water-stage recorder, lat. 34°25'25", long. 119"48'40", in La Goleta Grant, at 

highway bridge just downstream from Maria Ygnacio Creek, 1 mile upstream from mouth 

and 1.3 miles southeast of Goleta, Santa Barbara County. Altitude of gage, about 40 

feet (from topographic map).

Drainage area.- 18.3 square miles.

Records available.- October 1941 to September 1948 (prior to October 1947 published as 

Alascaaero creek near Goleta).

Extremes.- Maximum discharge during year, 60 second-feet Mar. 24 (gage height, 5.72 feet) 

no now during several months.

1941-48: Maximum discharge, 1,300 second-feet Jan. 22, 1943 (gage height, 10.6 

feet, from floodmarks), from rating curve extended above 550 second-feet plus computed 

overflow; no flow during large part of each year.

Remarks.- Records fair. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

0

0

0

0

0

0

0

0

0

0

.1

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

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

Month

October ....................................

November ......................... .........

December. ..................................

Calendar year 1947 ......................

Janu**rv

Febr 

Hare

nary. ..................................

h

April... ...................................

Hay

June .......................................

July.. .....................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

0

0

0

c

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

11

4.1

.4 I-'"1

Apr.

> 0.1

|» .02

.4

.4

.1

.01

.01

0

0

0

0

0

0 ), Secondfoot-days

0

0

. .1

32.76

.1

0 

16.0

2.13

.51

0

.41

.21

.39

19.85

May

. 0.01

1 \ .03

[

} -

l

> .06

1

, .01

0

0

0

Maximum

0

0

.1

2.0

.1

0

11

.4

0

.1

.1

11

June

Minimum

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

July

> 0.02

.1

.1

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 1 . 

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

03

Mean

0

0

.003

.090

.003

0 

.52

.071

.016

0

.013

.007

.013

.054

Sept.

. 0.02

.01

.1

.01

0

0

0

0

0

0

0

0

.01-

Runoff in 

acre feet

0

0

.2

65

.2

0 

32

4.2

1.0

0

.8

.4

.8

40

Peak discharge (base. 60 sec.-ft.).- Mar. 2* (9 a.m.) 60 sec.-ft.

a Incomplete gage-height record; discharge computed on basis of recorded range in stage, 

records, and records for San Jose Creek near Goleta.

Note.- During bracketed periods except (a) daily discharge less than 0.1 second-foot.
SAN JOSE CREEK BASIN 149

San Jose Creek near Goleta, Calif.

Location.- Water-stage recorder, lat. 34°27 I 25", long. 119°48 I 30", in La Goleta Grant, 

at fatterson Avenue Bridge, 1.1 miles downstream from unnamed tributary and 1.7 

miles north of Goleta, Santa Barbara County. Altitude of gage, about 120 feet (from 

topographic map).

Drainage area.- 5.54 square miles.

Records available.- January 1941 to September 1948.

Extremes.- Maximum discharge during year, 23 second-feet Mar. 24 (gage height, 1.93 

feet); no flow during "several months.

1941-48: Maximum discharge, 1,960 second-feet Apr. 4, 1941, from rating curve 

extended above 850 second-feet by logarithmic plotting; maximum gage height, 7.24 

feet Jan. 21, 1943; no flow at times during each year.

Remarks.- Records good. Many small diversions above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

0 

0 

0 

0 

.3

.2 

i e.03

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 0' 

0 

0

0 

0

0 

0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

«a

ber. ...................................

lendar year 1947 

ary

h. .....................................

1. .....................................

ter year 1947-48 ...............

Mar.

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.2 

.2 

.1

.1 

.2 

.1

, e.02

6.8 

1.1

0 

0 

.1 

.1 

.1 

.1

Apr.

0.1 

.1 

.4 

.9 

.3

.2 

.2 

.1 

.1 

.9

.5 

.3 

.3 

.2 

.1

> e.04

0 

0

0 

0

.1

.4 

.1

May

Second- , , foot-days «aximum

0 0 

0 0

o o

27.07 3.6

0 0 

.59 .3 

9.30 6.8 

5.62 .9 

0 0 

0 0 

0 0 

0 0 

0 0

15.51 6.8

June

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

July Aug. Sept.

Mean Runoff in "ean acre-feet

0 0 

0 0 

0 0

.074 54

0 0 

.020 1.2 

.300 18 

.187 11 

0 0 

0 0 

0 0 

0 0 

0 0

.042 30

Peak discharge (base, 100 sec. -ft.).- No peak above base.

e Daily discharge less than 0.1 second-foot. 

889419 O - 50 - 11
150 SANTA YNEZ RIVER BASIN 

Santa Ynez River at Jameson Lake, near Montecito, Calif.

Location.- Water-stage recorder on Jameson Lake at Juncal Dam, lat. 34°2J'32", long.

 iry°3U'25", 6.5 miles north of Carpinteria and 8 miles northeast of Montecito, Santa

Barbara County. Datum of gage is mean sea level. 

Drainage area.-.16.0 square miles (not including Alder Creek). 

Kecoras available.- December 1930 to September 1948. 

Average aiscnarge.- 17 years (1931-48), 7.53 'second-feet (computed from figures of net runorr). 

Remarks.- Records of net runoff represent inflow to Jameson Lake exclusive of rainfall on

 * water surface, computed on basis of records of storage, diversion to city of Montecito, 

spill and release to river, evaporation, and precipitation. Capacity and area ratings 

for this reservoir are of uncertain but probably recent date. Reservoir capacity at 

spillway level (gage height, 2,225 feet), about 7,000 acre-feet. Records are computed 

as of 6 p.m. on the last day of each month. 'No regulation or diversion above Jameson 

Lake.

November 1947 is the only month within the 17 years of records during which there 

was no runoff from basin above Jameson Lake and no rainfall on lake.

Cooperation.- Reservoir-operation records and related data furnished by Montecito bounty 

water District. . , , _.., , _ . .> _ , QJO

I Monthly r

Month

December. ...........

Calendar year 1947

July................

September. ..........

Water year 1947-48

imoff water year October'1947 to September 1948

Jameson Laket

Gage 

height 

(feet)

2,203,02 

2,200.13 

2,197.86 

2,196.78

.

2,195.26 

2,195.10 

2,195.42 

2,195.91 

2,195.71 

2,194.68 

2,192.50 

2,189.95 

2,187.35

-

Contents 

(acrefeet)

4,210 

3,908 

3,686 

3,582

.

3,434 

3,419 

3,450 

3,497 

3,478 

3,380 

3,185 

2,957 

2,745

-

Change 

in 

contents 

(acrefeet)

-302 

-222

-104

-

-148 

-15 

+31 

+47 

-19 

-98 

-195 

-228 

-212

-1,465

Diversion 

(acrefeet)

275 

210 

102

2,557

137 

48 

34 

3 

31 

92 

161 

194 

185

1,472

Spill 

and 

release 

(aorefeet)

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0

o

0

Evaporation 

(acrefeet)

28

12 

8

-

13 

14 

19 

25 

42 

46 

58 

52 

39

356

Total 

runoff 

(acrefeet)

1 

0 

6

-

2 

47 

84 

75 

54 

40 

24 

18 

12

363

Rain on 

reservoir 

(acrefeet)

1 

0 

5

-

0 

26 

41 

27 

4 

1 

0 

0 

0

105

Net 

runoff 

(acrefeet)

0 

0 

1

579

2 

21 

43 

48 

50 

39 

24 

18 

12

258

-t On last day of month.

Santa Ynez River above Gibraltar Dam, near Santa Barbara, Calif.

Loca'tipn.- Water-stage recorder on reservoir at Gibraltar Dam, lat. 34°31'37", long. 

mJTT'lO", 7 miles north 'of Santa Barbara, Santa Barbara County. Datum of gage is 

21.60 feet above mean sea level (Bureau of Reclamation bench mark) and is datum used by 

city of Santa Barbara for works in this vicinity.

Drainage area.- 219 square miles.

Kecoras available.- November 1903 to April 1907, October 1907 to January 1908, February 

iyj.u to wovemDer 1918, April 1920 to September 1948.

Average discharge.- 34 years (1904-06, 1911-14, 1916-17, 1920-48), 55.& second-feet (computea rrom rigures of net runoff).

Remarks.- Records of net runoff represent inflow to Gibraltar reservoir exclusive of rainran on reservoir surface, computed on the basis of records of storage, diversion to 

city of Santa Barbara, spill and release to river, evaporation, and precipitation. Capacity and area ratings for the reservoir are dated 1947. Reservoir capacity at spillway level (gage height, 1,354.85 feet), 7,490 acre-feet. Records computed as of 6 p.m. 

on the last day of each month. Flow regulated and water diverted at Jameson Lake. 

(See preceding page.)

Cooperation.- Reservoir-operation records and related data furnished by city of Santa 

Haroara.

Revisions Jwater years).- W 706: 1921, 1922. W 1041: 1944.

Monthly runoff, water year October _1947 to September 1948

Month

December. ...........

Calendar year 1947

July. ...............

September. ..........

Water year 1947-48

Gibraltar 

ReservoirT

Gage 

height 

(feet)

1,335.94 

1,332.68 

1,329.68 

1,327.50

-

,325.25 

,324.51 

,324.77 

,324.89 

,324.23 

,323.21 

1,321.49 

1,320.82 

1,319.61

-

Contents 

(acrefeet)

4,084 

3,574 

3,120 

2,800

-

2,477 

2,374 

2,410 

2,427 

2,335 

2,194 

1,961 

1,872 

1,713

-

Change 

in 

contents 

(acrefeet)

-510 

-454 

, -320

-4,740

-323 

-103 

+36 

+17 

-92 

-141 

-233 

-89 

-159

-2,371

Diversion 

(acrefeet)

414 

384 

302

4,969

300 

118 

55 

69 

71 

89 

131 

0 

53

1,986

Spill 

and 

release 

(acrefeet)

4 

4 

3

2,819

3

0 

0 

0

o

0 

4 

3

4

25

Evaporation 

(acrefeet)

53 

29 

17

774

23 

26 

31 

39 

58 

61 

81 

77 

70

565

Total 

runoff 

(acrefeet)

-39 

-37 

2

3,822

3

41 

122 

125 

37 

9 

-17 

-9 

-32

205

Rain on 

reservoir 

(acrefeet)

1 

0 

6

66

0 

31 

61 

28 

8 

4 

0 

0 

0

139

Net 

runoff 

(acrefeet)

-40 

-37

-4

3,756

3 

10 

61 

97 

29 

5 

-17 

-9 

-32

66

last day olT the month.

Note.- For months when inflow to reservoir was small and other elements were large, negative or 

discordant figures of runoff may appear. Deduction of precipitation on reservoir reduces the apparent runoff. To the extent that discrepancies may be attributed to changes in reservoir capacity 

since the time of rating used, or to uncertainties in rating, quantities too small for periods of 

falling stage in the reservoir are compensated by quantities too large for periods of corresponding 

rising stage, except for the actual decrease in capacity which remains uncompensated. In the records prior to 1947 net runoff computed as a minus quantity was called zero.
SANTA YNEZ RIVER BASIN 151

Santa Ynez River below Gibraltar Dam, near Santa Barbara, Calif.

Location.- Water-stage recorder on reservoir at Gibraltar Dam, lat. 34°31'37", long. 

119°41 I 10", and water-stage recorder and sharp-crested weir on outlet channel below 

dam, 7 miles north of Santa Barbara, Santa Barbara County. Datum of gage on 

reservoir is 21..60 feet above mean sea level (Bureau of Reclamation bench mark) and 

is datum used by city of Santa Barbara for works in this vicinity. Spillway of dam 

is 1,354.85 feet above datum of gage, or 1,376.45 feet above mean sea level.

Drainage area.- 219 square miles.

Records available.- April 1920 to September 1948 (monthly discharge only prior to 

uctooer 1941).

Average discharge.- 28 years, 40.6 second-feet.

Remarks.- Records of discharge represent flow in Santa Ynez River passing Gibraltar 

l)am, computed on basis of records of spillway discharge and controlled release. 

There was no flow over spillway during current year. Plow regulated'by Gibraltar 

Reservoir and Jameson Lake. Figures of daily discharge are computed on basis of 

24-hour interval ending at 6 p.m. on day for which they are shown. During year, 

city of Santa Barbara diverted 1,986 acre-feet from Gibraltar Reservoir and Montecito 

County Water District diverted 1,472 acre-feet from Jameson Lake for municipal use.

Cooperation.- Records of discharge furnished by city of Santa Barbara. 

Revisions (water years).- W 706: 1921, 1922. W 1041: 1944.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IT

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

O.O5

.05

.05

.05

.05

.05

.05

.05

.05

.03

.04

.04

.05

.05

.07

.07

.07

.07

.08

.07

.07

.07

.07

.07

.07

.05

.04

.05

.06

.06

.05

Nov.

0.05

.05

.04

.05

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.05

.05

.07

.07

.07

.07

.07

.07

.07

.07

.07

-

Dec.

0.07

.06

.06

.06

.08

.06

.06

.06

.06

.06

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

Jan.

0.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.06

.06

.06

.06

.05

.05

.05

.05

.05

.05

.05.

.05

.05

Feb.

0.03

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

_

-

Month

December. ...................................

Calendar year 19.4.7 ......................

March.. ....................................

April ......................................

May........................ ................

September. .................................

Water year 1947-48 .......................

liar. Apr.

Secondfoot-days

1.68

1,423.44

1 59

1.76

12.24

May

Maximum

.08

82

.06

.11

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

0

0

0

0

0

.02

-

Minimum

.05

0

O4

.05

0

July

0.10

.11

.07

.06

.05

.06

.06

.04

.06

.05

.07

.06

.06

.06

.06

.06

.05

.05

.05

.06

.06

.05

.05

.05

..05

.05

.06

.06

.06

.05

.05

Aug.

0.05

.05

.06

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.04

.08

.07

.06

.05

.06

.04

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

Mean

.054

3.90

.059

.033

Sept.

0.05

.05

.05

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.05

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

-

Runoff in 

acre-feet

3.5

3.3

2,820

0

3 2

3.5

24.3
152 SANTA YNEZ RIVER BASIN

Santa Ynez River below Los Laureles Canyon, near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°32'35", long. 119°51'45", in San Marcos Grant, 

0.1 mile downstream from Los Laureles Canyon Creek and 13 miles east of Santa Ynez, 

Santa Barbara County. Datum of gage is 794.52 feet above mean sea level, datum of 

1929 (Bureau of Reclamation bench mark).

Records available.- April 1947 to September 1948.

Extremes.- Maximum discharge during year, 23 second-feet Mar. 24 (gage height, 3.80 feet); 

no now during most of year.

1947-48: Maximum discharge, that of Mar. 24, 1948. No flow during several months 

of each year.

Remarks.- Records fair. Intermittent local pumping for irrigation affected flow. Diversions ana regulation farther instjeam.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

October. ........................... ...

November ......................... ......

December. ........................ . . ....

Calendar year ......................

January .................................. .

February. ...................... ...... ...

March. .....................................

April. .....................................

May. .......................................

June ........................... . . ....

July. .......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.4

.4

.5

.5

.6

7.3

1.5

1.1

.9

.9

.8

.7

.6

Apr.

0.6

.6

.6

.6

.7

.8

.3

.3

.4

.5

.6

.6

.6

.2

.1

.4

.1

.1

.2

.4

.4

.4

.5

.5

.5

.5

.5

.1

0

.1

Secondfoot-days

0

0

0

0

0

16.6

12.2

1.1

0

0

0

0

29.9

May

0.2

.3

.4

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

0

0

0

0

7.3

. 8

.4

0

0

0

0

7.3

June

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

July Aug.

Mean

0

0

0

0

0

.54

.41

.04

0

0

0

0

.08

Sept.

Runoff in 

acre- feet

0

0

0

0

0

33

24

2.2

0

0

0 

0

59

Location.- Water-stage recorder, lat. 34°35'?0", long. 120°01'25", in Canada de los Pinos 

Want, at San Lucas Bridge, 500 feet upstream from Santa Agueda Creek and 4 miles 

southeast of Santa Ynez, Santa Barbara County. Altitude of gage, about 500 feet

Drainage area.- 435 square miles.

Hecoras available.- December 1928 to September 1931, October 1932 to September 1948.

Average aiscnargeT- 18 years (1999-31, 1932-48), 110 second-feet

extremes.- Mo now during year.

"1929-31, 1932-48: Maximum discharge, 43.700 second-feet Mar. 2, 1938 (gage height, 

17.90 feet), from rating curve extended above float measurement of 34,100 second-feetno flow at times in some years.

Remarks.- Ho flow since August 1947. Flow regulated by Jameson Lake and Gibraltar

Reservoir. Water diverted out of basin from these reservoirs to cities of Montecito 

and Santa Barbara. Some water for irrigation pumped from wells along banks of river 

in valley upstream. Figures for the calendar year 1947 are follows: total secondroot-days, 2,337.02; maximum daily discharge, 100 second-feet; minimum daily, no flowmean, 6.40 second-feet; runoff, 4,640 acre-feet.
SANTA YNEZ RIVER BASIN 153

Santa Ynez River at Solvang, Calif.

Location.- Water-stage recorder, lat. lj4°3D l 10", long. 120°08'40", in San Carlos de Jonata 

Urant 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 1936, June 1937 to November 1940 (irrigation 

seasons only). October 1946 to September 1948. 1937 to 1946, many miscellaneous discharge measurements.

Extremes.- Maximum discharge during year, 13 second-feet Mar. 24 (gage height, 4.65 feet)- 

,j now July 30 to Sept. 30.

1946-48: Maximum discharge, 1,250 second-feet Nov. 20, 1946 (gage height, 6.15 

feet) ; . _, flow July 30 to Sept. 30, 1948.

Remarks.- Records fair. Diversions and regulation above station..

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

JLU

11

12

13

14

It)

16

17

18

19

20

21

22

23

24

2t>

26

27

28

29

30

31

Oct.

3.1

3.1

3.3

3.3

3.5

3.5

3.3

i .:

3.8

3.8

3.8

3.8

4. r

4.0

4.0

4.0

4.0

4.0

4.3

4.3

4.0

4.0

3.8

3.8

4.0

S.9

4.0

4.0

4.3

4.3

Nov.

4.3

4.3

4.3

4.3

4.3

4.3

4.6

4.6

4.6

4.6

4.6

4.6

4.9

5.2

5.5

5.8

5 8

5.5

4.9

4.9

4.6

5.5

5.8

5.5

5.8

5.5

4.6

4.6

4.<=

-

Dec.

4.9

5.2

6.1

6.1

6.1

6.1

6.1

6.1

5.8

5.8

5.8

6.1

6.1

6.1

6.5

6.9

6.9

6.5

6.5

6.5

6.5

6.5

6.1

5.8

6.1

6.1

6.1

6.1

6.1

6.1

Jan.

6.1

5.8

5.8

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.2

4.6

4.3

3.8

3.8

4.3

4.o

4.9

4.6

4.0

4.3

4.6

4.9

4.3

4.0

4.0

4.0

4.0

Feb.

4.0

4.0

4.0

5.8

6.9

6.9

6.1

6.5

6.1

6.1

6.1

6.5

6.5

6.5

6.5

6.5

6.9

6.9

«.9

6.9

6.5

6.5

6.1

5.5

5.2

4.9

4.9

4.9

-

Month

Calendar year 1947 ......................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

5.2

4.9

4.0

2.7

2.5

2 5

2.5

2.5

2.5

2.9

3.3

3.8

5.5

5.8

5.5

6.9

6.1

5.8

5.5

5.5

5.5

5.5

9.6

9.0

8.2

7.3

6.9

6.5

6.5

6.5

Apr.

6.9

6.9

6.9

6.5

6.5

6.1

6.1

6 1

6.1

5.8

5.8

5.8

5.5

5.5

5.8

5.5

5.2

4.9

4.3

4.0

3.8

3.5

3.5

3.3

3.3

3.1

3.3

4.6

4.0

Seoondfoot-days

4,576.3

0

1,212.2

Hay

3.8

3.8

3.8

3.5

3.5

3.3

2.9

2.5

2.5

2.5

2.5

2.5

2.3

2.1

2.0

2.0

2.1

2.5

2.3

2.1

1.8

1.8

1.8

1.7

1.5

1.3

1.2

1.1

1.3

1.3

Maximum

4 3

120

0

9.6

June

1.3

1.5

1.7

1.7

1.5

1.4

1.4

1.5

1.5

1.5

1.7

1.8

1.7

1.7

1.7

1.5

1.3

1.1

1.1

1.0

1.0

.9

.8

.8

.7

.7

.7

.7

Minimum

1.5

0

0

July

0.6

.5

.5

.5

.5

.5

.4 ~ .4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

0

0

Aug.

Mean

12.5

29

0

3.31

Sept.

Runoff in 

acre-feet

291

9,080

0

2,400

Peak discharge (base, 150 sec.-ft.).- No peak above base.
154 SANTA YNEZ RIVER BASIN

Santa Ynez River near Buellton, Calif.

Location.- Water-stage recorder, lat. 34°36'50", long. 1SO°14'30", in Nojoqui Grant, 

3 miles west of Buellton, Santa Barbara County.

Records available.- June to September 1948.

Remarks.- Records fair. No record of daily discharge prior to June 8, 1948. No flow 

after June 16. Diversions and regulation above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

.

.

-

_

-

.

_

_

tO. 3

_

t.2

_

-

_

_

_

-

t.3

_

_

-

.

_

_

_

-

Nov.

tO. 4

Dec. Jan. Feb.

Month

December. ...................................

Calendar year ......................

March. .....................................

April . .......... .... . ... .

Hay 

June 8-30... ..... .................... ....

September. .................................

The oeriod ...............................

Mar. Apr.

Secondfcct-days

.

0.6

0

-

May

Maximum

_

_

_

1.2

0

0

0

-

June

_

-

-

-

-

.

-

0.1

.1

.1

.1

0

o

0

.1

.1

0

0

0

0

0

0

o

0

0

0

o

0

o

0

-

Minimum

.

_

.

_

0.1

0

0

0

-

July Aug.

Mean

.

_

_

_

0.03

0

0

0

-

Sept.

Runoff in 

acre-feet

_

_

_

_

1.2

0

o

0

1.2

t Result of discharge measurement.
SANTA YNEZ RIVER BASIN 155

Santa Ynez River at narrows, near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°38'10", long. 120°25'30", in Canada de Salsipuedes Grant, 0.5 mile upstream from Robinson Bridge, 2.0 miles downstream from Salsipuedes Creek, and 2 miles east of Lompoc, Santa Barbara County.

Records available.- April 1947 to September 1948 (fragmentary).

Remarks.- Records good. Diversions and regulation above station. Local pumping from

ground water affects flow at this station. No record Dec. 2 to Apr. 26. No flow after 

June 7.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

. 0.03

(..,

. .05

Nov.

> 0.05

.06

-

Dec.

tO. 06

Jan. Feb.

Month

October. ................................

November. ..................................

December. ...................................

Calendar year ......................

January .................................. .

February ...................................

March. .....................................

April 27-30 ...............................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year ......................

Mar. Apr.

_

-

-

_

_

-

-

-

-

-

_

_

_

-

-

.

-

_

-

_

_

_

_

_

-

.

0.5

8.8

3.4

2.8

-

Secondfoot-days

1.20

1.70

_

7.5

12.2

1.2

0

0

0

-

May

1.7

1.3

1.0

.9

.8

.8

.5

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Maximum

-

_

1.7

.2

0

0

0

-

June

0.2

.2

.2

.2

.2

.1

.1

0

0

0

0

o

0

0

o

0

0

o

0

o

0

0

o

0

o

o

0

0

0

oMinimum

-

_

.2

o

0

o

0

-

July Aug.

Mean

O.O4

. O6

_

. 39

104

0

0

0

.

Sept.

Runoff in 

acre-feet

2.4

3.4'.

_

15

24

2.4

0

0

O

-

t Result of discharge measurement.
156 SANTA YNEZ RIVER BASIN

Santa Ynez River near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°38'30", long. 120°25'50", near boundary of La 

 Mission Vieja de la Purisima Grant, at Robinson Bridge, 1.5 miles east of Lompoc, Santa

Barbara County, and 2.5 miles downstream from Salsipuedes Creek. Datum of gage is

79.28 feet above mean sea level, datum of 1929.

Drainage area.- 790 square miles.

Records available.- November 1906 to September 19ia (1909, gage heights only), April 1925 

to September 1948.

Average discharge.- 32 years (1907-8, 1910-18, 1925-48), 210 second-feet.

Extremes.- Maximum discharge during year, 80 second-feet Mar. 24 (gage height, 5.61 feet); 

no flow during year except Mar. 24-28.

1908-18, 1925-48: Maximum discharge, 45,000 second-feet Mar. 3, 1938 (gage height, 

29.3 feet, site and datum then in use), from rating curve extended above float measurement of 38,000 second-feet. No flow at times in some years.

Maximum daily discharge, roughly estimated as 62,000 second-feet, occurred Jan. 9, 

1907.

Remarks.- Records fair. Flow regulated by Jameson Lake and Gibraltar Reservoir. Water 

diverted out of basin from these reservoirs to cities of Montecito and Santa Barbara. 

Some water for irrigation pumped from wells along banks of river.

Revisions (water years).- W 931: 1914-40(M). W 981: 1938(M).

Discharge, in second feet, water year October 1947 to September 1943

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

December. ..................................

Calendar year 1947 ......................

May. .......................................

September. .................................

Water year 1947 48 ......................

Mar.

0

o

o

0

0

0

0

0

o

o

o

o

0

0

0

o

o

0

o

0

o

0

o

18

5.1

1.4

.6

.1

0

0

O

Apr.

Secondfoot-days

o

4,104.9

O

25.2

May

Maximum

0

147

0

18

June

Minimum

o

0

o

o

July Aug.

Mean

0

11.2

O

.07

Sept.

Runoff in 

acre feet

0

8,130

0

50

Peak discharge (base, 5OO sec. -ft.' .- Ho peak above base.
Location.- Water-stage recorder, lat. 34°40'10", long. 120°27'20", in Lompoc Grant, at H 

Street Bridge on State Highway 1, 2 miles north of Lompoc, Santa Barbara County.

Records available.- April 1947 to September 1948.

Remarks.- Mo flow since May 3, 1947. Flow Mar. 24-28 past the gaging station, Santa Ynez 

Kiver near Lompoc (see preceding page), did not reach this station.

Santa Ynez River at barrier, near Surf, Calif.

Location.- Water-stage recorder and compound broad-crested weir, lat. 34°41'25", long. 120° 

cto'au", in Lompoc Grant, at salt-water barrier, 1.0 mile upstream from mouth and 1.2 

miles east of Surf, Santa Barbara County. Datum of gage is 5.5 feet above mean sea level, datum of 1929.

Records available.- May 1947 to September 1948.

Extremes.- Maximum discharge daring year, 1.9 second-feet Mar. 25 (gage height, 0.77 foot); 

no now daring several months.

1947-48: Maximum discharge, that of Mar. 25, 1948; no flow during several months of 

each year.

Remarks.- Records fair except those for periods of backwater from ocean tides, which are 

poor. The discharge shown in these records may inclade some ocean water returning downstream after periods of submergence of the weir.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

o

o

o

0

0

0

o

o

o

o

o

0

o

0

o

o

0

o

0

0

.1

.1.1

.1

.2

.2

.2

.2

.2

Nov.

0.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

-

Dec.

. 0.3

Jan.

, 0.4

Feb.

0.5

.5

.5

.7

1.5

1.1

.7

.5

.4

.5

.5

.5

.4

.4

.3

.3

.3

.3

.3

.3

.3

.4

.5

.5

.5

.5

.5

.5

.7

_

Month

October ....................................

November . ........................ ........

December. ........ .-^ .......................

Calendar year ......................

January .................................. .

February. ..................................

March. .....................................

April.. ....................................

May........................................

June .......................................

July.. .....................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

0.6

.6

.5

.5

.4

.4

.5

.5

.6

.6

.7

.7

.7

1.1

1.0.

.9

1.0

1.1

1.4

1.4

1.0

.8

.7

1.2

1.5

1.3

1.2

1.0

.9

.9

.8

Apr.

0.8

.8

.8

.7

.7

.6

.6

.5

.5

.4

.4

.3

.3

.3

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.3

.5

.3

~

Secondfoot-days

1.4

7.2

9.3

12.5

14.9

26.5

10.8

2.7

2.7

0

0

0

88.0

May

0.2

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

.1.1

0

.1

.1

.1

.1.1.1

.1

.1.1

.1.1

.2

.2

Maximum

0.2

-

1.5

1.5

.8

.2

.2

0

0

0

1.5

June

0.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

.1

.1.1

.1.1

.1

.1.1

.1

0

0

-

Minimum

0

-

.3

.4

.1

0

0

0

0

0

0

July Aug.

Mean

0.05

.24

.30

.40

.51

.85

.36

.09

.09

0

0

0

0.24

Sept.

Runoff in 

acre-feet

2.8

14

18

25

30

53

21

5.4

5.4

0

0

0

175

Note.- Stage-discharge relation affected by backwater Oct. 29 to Nov. 5, Ko\. 23 to Jan. 18, Jan. 22, 

24-26, Jan. 30 to Feb. 2, Mar. 1-4, 6-11, 15, Mar. 26 to Apr. 13; discharge computed on basis of 

field engineer's notes, 3 discharge measurements, interpolation, probable recession curves, rainfall 

records, and records for Santa Ynez River near Lompoc.
158 SANTA YNEZ RIVER BASIN

Santa Cruz Creek above Stuke Canyon, near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°37 I 40", long. 119 0 51'40", in San Marcos Grant, 

1.5 miles upstream from Stuke Canyon Creek ind 13 miles east of Santa Ynez, Santa 

Barbara County.

Records available.- May 1947 to September 1948 (fragmentary). 

Remarks.- Records fair.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

5 

6

7

8

9

10

11

1?.

13

14

15

17in

19

20

?.l

22

23

24

25

26

27

28

29 

30 

31

Oct.

0.4

.5

.2

.1

.1 

,2

.Z

.Z

.Z

.Z

.Z

.2

.2

.2

.2

.2 

.Z

.Z

.2

.2

.2

.Z

.2

.2

.2

.2

.3

.3 

.4

.3

Nov.

0.3

.3

.3

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.3 

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4 

.4

Dec.

0.4

.4

.4

-

-

-

_

-

_

-

-

_

~

-

-

-

_

-

-

-

-

.

-

-

:

Jan. Feb.

Month

December ...................................

Calendar year ......................

March. .....................................

April ......................................

May. .......................................

September. .................................

Water year ......................

Mar. Apr.

.

-

_

-

_

_

_

-

.

_

-

«

-

-

-

-

_

-

-

-

-

2.3

2.2

2.8

5.0 

3.8

Secondfoot-days

7.0

-

2.3C

-

May

3.4

2.8

2.5

2.3

2.1 

2.0

2.0

2.0

1.9

1.9

2.0

2.0

1.9

1.8

1.6

1.3 

1.4

1.6

2.0

2.0

1.8

1.6

1.5

1.4

1.3

1.2

1.1

1.1 

1.7 

2.3

Maximum

.

.2

-

June

2.3

4.1

4.4

3.2

3.0 

2.6

2.3

2.0

1.9

1.8

1.7

1.6

1.5

1.3

1.2

1.0 

1.0

.9

.8

.7

.7

.6

.5

.5

.5

.4

.4

.4 

.3

Minimum

-

0

-

July

0.3

.3

.3

.4

.4 

.3

.3

.3

.2

.2

.3

.3

.3

.2

.2

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1 

.1 

.1

Aug.

0.1

.1

.1

.1

.1 

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1 

.1 -.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

1 e.04

Mean

.

.77

-

Sept.

0

0

0

0 1-0

0

0

0

0

.1 

.1

.1.1

.2

.2

.2

.2

.2

.2

.1

.1

.1 

.1

Runoff in 

acre-feet

_

4.6

-

Daily discharge less than O.I second-foot.
SANTA YNEZ RIVER BASIN 159 

Santa Cruz Creek near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°34'40", long. 119°55'50", in Tequepis Grant, 0.5 

mile upstream from mouth and 10 miles southeast of Santa Ynez, Santa Barbara County. 

Altitude of gage, about 700 .feet (from topographic map). Prior to Jan. 22, 1943, at 

site 900 feet downstream.

Drainage area.- 77.2 square miles.

Records available.- October 1941 to September 1948.

Extremes.- Maximum discharge during year, 19 second-feet Apr. 10 (gage height, 1.67 feet); 

minimum daily, 0.1 second-foot on many days during January to March.

1941-48: Maximum discharge not determined, occurred Jan. 22,' 1943; minimum daily, 

0.1 second-foot on many days during period January to March 1948.

Remarks.- Records fair. No diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.4

.4

.4

.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

.3

.3

.3

Nov.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

-

Dec.

0.3

.3

.3

.3

.3

.3

.3

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Jan.

0.2

.2

.2

.2

.2

.2

.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

Feb.

0.1.1.1.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

_

-

Month

October ....................................

November ...................................

December ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April. ....'.................................

Hay. .......................................

June - - - - - - - - - -

July 

Augu 

Sept

St. ....................................

anther . .....

Water year 1947-48 ......................

Mar.

0.1.1

.1.1

.1

.1

.1

.1.1

.1

.1

.1

.1

.1

.1

.1

.1

.1.1.1

.1

.1.1

.6

2.0

.5

.4

.4

.3

.3

.3

Apr.

0.3

.3

1.5

6.1

1.0

.5

.5

.5

.5

.8

7.8

2.9

1.3

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

1.0

3.1

1.8

Seoondfoot-days

10.4

9.0

7.1

830.5

5.1

3.2

7.1

39 .4

22 . 6

22.0

19.0 

15.5 

13.4

173.8

May

0.

.8

.9

.8

.8

.8

.8

.8

Maximum

0.4

.3 

.3

17

.2

.2

2.0

7.8

g

1.0 

.7 

.5

.5

7.8

June

0.7

.7

1.0

.9

.8

.8

.8

.8

.8

.7

-

Minimum

0.3

.3 

.2

.2

.1

.1

.1

.3

.6

.7 

.5 

.5

.4

.1

July

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

Aug.

0.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Mean

0 . 34

.30 

.23

2.28

. 16

.11

I'.Zl

.73

.73 

.61 

.50

.45

.47

Sept.

0.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.4

.5

.5'

.5

.5

.4

.4

.4

.4

.4

.4

.4

Runoff in 

acre-feet

21

18 

14

1,650

10

6.3

14

45

44 

38

31

27

346

Peak discharge (base, 100 sec.-ft.).- Mo peak above base.
SANTA YNEZ RIVER BASIN

Santa Agueda Creek near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°35'40", long. 120°01'30", in Canada de los Pinos

Grant, at highway bridge 0.8 mile upstream from mouth and 3.5 miles southeast of Santa

Ynez, Santa Barbara County. Altitude of gage, about 520 feet. 

Drainage area.- 56.4 square miles. 

Kecords available.- January 1941 to September 1948. 

Extremes.- Maximum discharge during year, 5.0 second-feet Mar. 24 (gage height, 0.86 foot);

minimum daily, 0.1 second-foot on many days.

1941-48: Maximum discharge, 1,580 second-feet Mar. 3, 1941 (gage height, 4.60 feet):

minimum daily, 0.1 second-foot on many days in most years. 

Remarks.- Records fair. Small diversions above station for irrigation.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

Nov.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.2

-

Dec.

0.2

.2

.2

.3

.3

.3

.2

.2

.2

.2

.2

.2

.1

.2

.2

.1

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Jan.

0.1

.1

.1

Feb.

0.1

.1

.1

.1

.2

.2

.1

.1

.1

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

_

-

Month

December ...................................

Calendar year 1947 .................

February. ..............................

March. .....................................

April. ................................ . . .

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

.2

.2

.2

.2

.2

.3

.3

Apr.

0.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

-

Second- ' 

foot-days

5.3

142.1

6.8

67.6

Peak discharge (base, 50 sec. -ft. .- No peak above ba

May

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

Maximum

.3

1.5

.3

.4

36 .

June

0.3

.4

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

d.2

d.2

-

Minimum

0.1

.1

.1

.1

.1

.1

.1

.1

.1

July

do. 2

d.2

d.l

d.l

d.l

d.l

.1

.1

.1

.1

.2

.2

.2

d.2

d.l

d.l

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

Aug.

0.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.2

.2

.2

Mean

.18

.17

.39

.10

.15

.23

.18

Sept.

0.2

.1

.1

. 2

.3

.3

.3

. 2

,f

.3

.3

.3

.3

.3

.3

.3

.2

.2

.?

 £

. £

.£

.2

. 2

 £

_ j

. £

. 2

. ^

. 2

-

Runoff in 

acre-feet

10

11

11

282

6.1

8.E

13

10

15

13

13

13

133

d Doubtful gage-height record; discharge interpolated.

La Zaca Creek at Buellton, Calif.

Location.- Water-stage recorder, lat. 34°36'35", long. 120°11'15", in San Carlos de Jonata 

Urant, at culvert on State Highway 150 in Buellton, Santa Barbara County. Altitude of 

gage, about 340 feet.

Drainage area.- 38.7 square miles.

Records available.- January 1941 to September 1948.

Extremes.- Maximum discharge during year, 0.4 second-foot Mar. 24 (gage height, 2.34 feet); 

no flow during most of year.

1941-48: Maximum discharge, 874 second-feet Mar. 3, 1941; maximum gage height, 6.80 

feet Mar. 4, 1941; no flow during most of each year.

Remarks.- No appreciable flow since November 1946. Slight flow for a short time each day 

occurred Feb. 4, 5, 6, Mar. 13, 14, 16, 17, 24, Apr. 6, 28. The greatest flow, on 

Mar. 24, produced a daily mean discharge of less than 0.01 second-foot.
SANTA YNEZ RIVER BASIN 161

Salsipuedes Creek near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°34'55", long. 120°24'35", near northern edge of 

San Julian Grant, at highway bridge on Jalama road, just downstream from El Jaro Creek 

and 5 miles southeast of Lompoc, Santa Barbara County. Altitude of gage, about 230 

feet (from topographic map).

Drainage area.- 46.6 square miles.

Records available.- January 1941 to September 1948.

Extremes.- Maximum discharge dyring year, 200 second-feet Mar. 24 (gage height, 4.61 feet); 

daily discharge less than 0.1 second-foot July 6 to Sept. 30.

1941-48: Maximum discharge, 7,190 second-fe&t Mar. 3, 1941 (gage height, 19.95 

feet); minimum daily, less than 0.1 second-foot on many days in some years.

Remarks.- Records fair. Small diversions for irrigation above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0. .

Nov.

0.2

.2

.2

.2

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

-

Dec.

0.3

.3

.3

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

Jan.

0.3

.3

.4

.4

.4

.5

.5

.5

.6

.5

.6

.5

.5

.5

.5

.6

.6

.6

.5

.5

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.6

Feb.

0.6

.6

.6

.6

1.6

1.5

.9

.7

.6

.6

.6

.5

.5

.6

.6

.6

.6

.6.6'

.6

.6

.5

.5

.5

.5

.5

.5

.6

.8

_

-

Month

October ....................................

November ......................... .........

December. ..................................

Calendar vear 1947 . .

Janu 

Kebr

ary. ...................................

uarv. ..................... ........

March ......................................

April. .....................................

May. .......................................

June. ..............................

July. .................. ... .

Augu 

Sept

St. ....................................

embe r ..................................

Water year 1947-48 ......................

Mar.

0.7

-7

.6

.6

.6

.6

.6

.6

.7

.7

.6

.6

2.0

4.1

3.2

2.2

3.8

1.8

1.2

.9

.8

.7

.6

51

4.1

2.6

1.8

1.3

1.2

1.1

.8

Apr.

0.8

.9

4.5

2.5

1.5

2.7

2.0

1.1

.9

1.1

1.2

1.2

1.0

.9

.7

.6

.6

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

1.9

4.5

1.4

-

Secondfoot-days

3.2

6.5

9.4

268.8

15.2 

19.1

92 . 8

36.3

9 . 8

2.17 

1.84

202.77

May

0.7

.6

.5

.5

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.3

.4

Maximum

0.2

.3

.4

19

.6

1.6

51 

4.5

.7 

.4

.1

51

June

o.«

Minimum

0.1

.1

.2

.1

.3

.5

.6

.4

.2

.1

1

-

.July

0.1

.1

.1

.1

.1

> e.07

, e.06

Aug.

 e0.07

Mean

0.10

.22

.30

.74

.49 

.66

2.99

1.21

32

!l4

.070

.070 

.061

.554

Sept.

> e0.07

, e .U5

> e . OR

Runoff in 

acre feet

6.3

13

19

534

30

0?

72

19

4.3

4.3 

3.6

402

Peak discharge (base, 100 sec.-ft.).- Mar. 24 (9:15 a.m.) 200 

e Dally discharge less than 0.1 second-foot.

Location.- Water-stage recorder, lat. 34°45'45", long. 120°25'40", in Los Alamos Grant, 

at highway bridge 0.25 mile south of Harris, Santa Barbara County. Datum of gage is 

306.56 feet above mean sea level, datum of 1929.

Drainage area.- 101 square miles.

Kecords available.- January 1941 to September 1948.

Extremes.- Maximum discharge during year, 2.1 second-feet Mar. 24 (gage height, 3.00 

feet); no flow except on Mar. 6, 24.

1941-48: Maximum discharge, 1,880 second-feet Mar. 3, 1941 (gage height, 10.1 

feet at site and datum then in use), from rating curve extended above 480 second-feet 

by logarithmic plotting; no flow during a large part of each year.

Remarks.- The only flow during year consisted of estimated daily mean discharge of 0.1 

second-foot on Mar. 6, S4, resulting in a total runoff of 0.4 acre-foot during water 

year. There was no measurable runoff during calendar year 1947. Water was pumped 

from wells above station for irrigation.
162 SANTA MARIA RIVER BASIN

Cuyama River near Ventucopa, Calif.

Location.- Water-stage recorder, lat. 34°41'10", long. 119°21'30", in NE^SWi sec. 19, T.

 V N . , K . 23 W., at Ozena Bridge on U. S. Highway 399, 4.5 miles downstream from confluence of Dry Canyon and Alamo Creek and 12 miles southeast of Ventucopa, Santa 

Barbara County. Altitude of gage, about 3,500 feet.

Drainage area.- 90 square miles . < 

Records available.- November 1944 to September 1948. Miscellaneous discharge measurements, 

June 1943 to September 1944.

Extremes.- Maximum discharge during year, 47 second-feet Mar. 24 (gage height, 4.00 feet);

 minimum daily, 0.2 second-foot on many days during July to September.

Remarks.- Records fair except those for periods of doubtful or no gage-height record, which 

are poor .

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

?,

3

4

5

6

7

8

9

10

U

12

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

Nov.

1.

1.

I.'

1.

1.

1.

1..

1..

1..

1.6

1.6

1.6

1.8

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

1.8

1.8

1.8

1.8

1.8

1.8

1.6

1.6

~

Dec.

1.8

1.8

1.8

2.4

2.4

2.1

2.1

2.1

2.4

2.4

2.4

2.4

2.4

2.4

2.7

2.7

2.7

2.4

2.7

2.7

2.7

2.4

2.1

1.8

1.8

1.8

1.8

1.8

2.1

2.1

Jan.

2.1

2.1

2.1

2.

2.

2.

2.

2.

2.-

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.1

2.1

2.1

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

Feb.

1.8

1.8

2.4

3.3

4.5

2.7

2.4

2.6

2.7

3.7

3.3

3.0

2.4

2.1

2.1

2.4

3.3

3.0

2.7

2.7

2.4

2.4

2.4

2.4

2.4

2.4

2.7

2.7

-

-

Month

December ...................................

Calendar year 194,7 ......................

April ......................................

May........................................

September. .................................

Water year 1947 48 ......................

Mar.

2.7

2.7

2.7

2.7

2.7

2.7

3.0

3.0

3.3

3.3

2.7

2.4

4.1

4.0

3.5

3.0

3.0

3.0

3.0

3.0

2.5

2.5

2.7

7.0

3.5

3.0

3.0

3.0

3.0

3.0

3.0

Apr.

3.0

3.0

3.0

3.0

3.0 .

3.0

3.3

3.3

3.3

3.7

4.0

3.3

3.0

2.7

3.0

3.0

3.0

2.7

2.4

2.4

2.4

2.4

2.4

2.4

2.1

2.1

5.8

4.0-

3.0

-

Secondfoot-days

69.6

932.2

10.0

593.7

Hay

2.0

2.0

2.0

1.8

1.8

1.2

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

1.6

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.8

1.7

Maximum

2.7

15

.5

7.0

June

2.2

2.0

1.9

1.8

1.7

1.6

1.5

1.5

1.4

1.4

1.3

1.3

1.2

1.2

1.2

1.2

1.0

.9

.9

.9

.9

.9

.8

.8

.6

.6

.6

.6

.6

-

Minimum

1.8

.4

.2

.2

July

0.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.2

.2

.2

.2

.2

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.2

.2

.2

Mean

2.25

2.55

.33

1.62

Sept.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

-

Runoff in 

acre-feet

138

1,850

Q^

20

1,180

Peak discharge (base, 50 see.-ft.).- Ho peak above base.

Note.- Ho gage-height" record Mar. 14-22, Mar. 25 to Apr. 5, Apr. 29 to Hay 3, Hay 24-29, Hay 31, 

June Z-14; doubtful gage-height record Feb. 8, 12-13; discharge computed on basis of normal recession curves and rainfall record.
SANTA MARIA RIVER BASIN 163 

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 Alamo Creek and 10 miles northeast of Santa 

Maria, Santa Barbara-County. Datum of gage Is 610.24 feet above mean sea level, unadjusted. A temporary water-stage recorder 150 feet downstream has been used since Feb. 

3, 1945.

Drainage area.- 912 square miles.

Records available.- December 1929-to September 1948.

Average discharge.- 18 years, 24.5 second-feet.

Extremes.- Maximum discharge during year, 23 second-feet Mar. 26; no flow Oct. 1 to Dec. 

Il, Aug. 29 to Sept. 30.

1929-48: Maximum discharge, 17,300 second-feet Mar. 3, 1938 (gage height, 16.6 

feet), by slope-area method; no flow for long periods in some years.

Remarks.- Records fair. Some water for irrigation pumped from wells along banks of river 

station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

0

o

0

0

0

0

o

0

0

0

0

.1

.3

.4

.4

.5

.9

1.4

1.4

1.9

2.6

1.9

1.6

1.6

1.8

1.8

1.8

2.1

2.2

2.6

2.6

Jan.

2.8

3.8

3.6

3.8

4.0

3.8

3.6

3.6

3.4

3.4

4.0

4.3

4.3

4.3

4.3

4.0

4.3

4.5

4.8

4.5

3.8

3.8

4.3

4.0

3.6

3.6

3.4

2.7

2.4

3.9

4.0

Feb.

5.1

4.8

4.5

5.3

11

19

17

13

10

8.6

7.9

7.6

7.2

6.9

6.9

6.5

6.5

6.5

6.5

6.2

6.2

6.2

6.2

6.2

6.2

6.2

E.5

7.2

7.9

-

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

7.6

7.2

6.9

6.5

6.2

6.5

6.5

6.9

7.2

6.9

6.2

5.9

7.7

11

11

12

12

12

11

9.0

7.6

6.9

6.5

12

17

18

13

12

11

9.8

9.0

Apr.

8.6

8.6

10

11

10

11

10

9.0

11

13

10

8.6

7.9

7.2

6.9

5.9

5.0

4.5

4.3

3.6

3.6

3.8

3.8

3.6

2.7

2.4

2.2

2.9

5.9

5.3

-

Secondfoot-days

0

0

29.9

1,274.42

118.6

225 . 8

289.0

202.3

46.5

8 . 6

2.55

.64

0

923.89

May

6.9

5.6

3.6

2.6

2.2

1.6

2.2

2.1

1.5

1.2

1.1

1.0

1.1

1.1

1.0

.8

.7

.9

1.4

1.3

1.2

.7

.5

.4

.4

.3

.2

.2

.3

1.3

1.1

Maximum

0

0

2.6

17

4.8

19

18

13

l'g

!i

0

19

June

0.6

.5

1.2

.7

.5

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

-

Minimum

0

0

0

-o

2.4

4.5

5 9

2.2

.2

.1

0

0

July

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

> e.05

Aug.

. eO.03

1 e.02

. e.oi

0

0

0

Mean

0

0

.96

3.49

3 . 83

7.79

9 32

6.74

1.50

.29

. 08

.02

O

2.52

Sept.

Runoff in 

acre feet _

0

0

59

2,530

235

448

573

401

92

17

5.1

1.3

O

1,830

Peak discharge (base, 2OO sec. -ft.).- No peak above base.

e Dally discharge less than O.I second-foot.
164 SANTA MARIA RIVER BASIN 

Santa Maria River at Guadalupe, Calif.

Location - Water-stage recorder, lat. 34°58'25", long. 120°34'15", in Guadalupe Grant, at

 State highway bridge, 0.5 mile north of Guadalupe, Santa Barbara County. Datum of gage 

is 64.92 feet above mean sea level, datum of 1929, supplementary adjustment oi 19J4 

(Corps of Engineers bench mark).

Drainage area.- 1,763 square miles.

Records available.- January 1941 to September 1948.

Extremes.- No 1'low during year. .

 1951-48: Maximum discharge, 14,700 second-feet Mar. 5, 1941 (gage height, 8.0U

feet); no flow during several months of each year. 

Remarks.- No flow since January 1947. Several small surface diversions and extensive

 pumping from ground water in basin above station for irrigation, and considerable losses 

of surface flow by infiltration to ground water. During wetter years when water table 

is higher, returns from ground water in lower part of basin sometimes caase sari ace 

flow at this station even when there is no flow in intermediate reaches of river . _ 

Figures for the calendar year 1947 are as following: Total second-foot-days, 7.5; maximum daily discharge 2.0 second-feet; minimum daily, no flow; mean, 0.02 second-foot; 

runoff, 15 acre-feet.

Alamo Creek near Santa Maria, Calif.

Location.- water-stage recorder, lat. 35°00'40", long. 120°18'45", in Suey Grant, at 

highway bridge 1.2 miles upstream from mouth and 9 miles northeast of Santa Maria, 

Santa Barbara County. Datum of gage is 581.14 feet above mean sea level, datum of 1929.

Drainage area.- 87.7 square miles.

Records available.- October 1943 to September 1948.

Extremes.- Maximum.discharge during year, 2.6 second-feet Mar. 24 (gage height, 2.33 feet); 

minimum daily, 0.3 second-foot on many days during period July to September.

1943-48: Maximum discharge, 700 second-feet Feb. 2, 1945 (gage height, 4.34 feet); 

minimum daily, 0.3 second-foot on many days during period July to September 1948.

Remarks.- Records fair. No diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

.7

.7

.7

.7

.8

.8

.8

.7

.8

.8

.8

.8

.7

.7

.7

.8

.8

.9

.8

.8

Nov.

0.8

.8

.7

.7

.8

.8

.8

.9

.9

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

-

Dec.

0.9

.9

.9

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

1.0

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

Jan.

0.9

.8

.8

.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

Feb.

0.9

.9

.9

1.0

1.4

1.2

1.0

.9

.8

.8

.8

.8

.8

.8

.8

.8

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

_

-

Month

December ...................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

July- -

Augu 

Sept

St. ....................................

ember ..................................

Water year 1947-48 ......................

Mar.

0.9

1.0

.9

.9

.9

.9

.9

1.0

1.0

1.0

1.0

1.0

1.3

1.2

1.1

1.2

1.1

1.0

.9

.9

.8

.8

.8

1.7

1.1

1.0

1.0

.9

1.0

.9

.8

Apr.

0.8

.8

1.0

.8

.8

.8

.8

.8

1.6

1.4

1.1

1.0

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.9

1.1

.9

-

Secondfoot-days

28.7

346.8

10.5 

10.9

258.4

May

0.9

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.5

.5

.5

1.0

.7

Maximum

1.1

1.8

.4 

.4

1.7

June

0.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.5

.5

.5

.5

.4

.4

.4

.4

-

Minimum

.8

.5

.3 

.3

.3

July

0.

Aug.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

Mean

.93

.95

.34

.36

.71

Sept.

0.3

.3

.3

.3

.3

-

Runoff in 

acre- feet

57

689

21

22

513

Peak discharge (base, 5 see.-ft.).- No peak above base.
SANTA MARIA RIVER BASIN 165

Huasna River near Santa Maria, Calif.

Location.- Water-stage recorder, lat. 35°01'20", long. 120°19'20", in Suey Grant, 0.5 mile 

upstream from mouth and 8 miles northeast of Santa Maria, Santa Barbara County. Altitude of gage, about 600 feet. Temporary gages at different datum about 400 feet downstream used continuously since Mar. 23, 1944.

Drainage area.- 119 square miles.

Records available.- December 1929 to September 1948.

Average discharge.- 18 years (1930-48), 22.5 second-feet.

Extremes.- Maximum discharge during year, 6.5 second-feet Mar. 24 (gage height, 1.73 feet 

at temporary gage currently in use); no flow during several months.

1929-48: 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 good. No diversion above station.

Discharge, in second feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

,27 

28 

29 

30 

31

Oct. Nov.

0

o

0

0

0

0 

0 

0 

0

o 

0

.1.1

.2 

.3

.4 

.5 

.5 

.6

.6 

.6 

.6 

.7 

.8

.8 

.8 

.8 

.8 

.8

Dec.

0.9 

.9 

.9 

.9 

1.0

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 

2.0

2.4 

1.7 

1.4 

1.4

1.3

1.3 

1.2 

1.2 

1.2 

1.2 

1.2

Jan.

1.3

1.3 

1.3 

1.2 

1.2

l.Z 

1.2 

l.Z

1.2 

1.2

1.1 

1.0 

1.0 

1.0 

1.0

.9 

1.0 

1.0 

1.0

1.0 

1.0

1.0 

1.0 

1.0

1.0 

1.0

1.0 

1.0 

1.0 

1.0

Feb.

1.1 

1.1 

1.1 

1.4 

4.2

4.2 

2.5 

2.1

1.7 

1.7

1.4 

1.4 

1.3 

1.2 

1.2

1.1 

1.1 

1.1 

1.0

1.0 

1.1 

1.1 

1.1 

1.1

1.2 

1.2 

1.4 

1.4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

her.. ..................................

mber. ................. ...............

mber. ............ .......

lendar year 1947 

ary . . .

h. .....................................

1. .................... .......... .

ember. .................................

ter year 1947-48" ......................

Mar.

1.3 

l.Z 

1.1 

1.0 

.9

.9 

.9 

.9

1.0 

1.0

.9 

.9 

1.8 

2.9 

1.8

4.3 

2.7 

2.4 

1.9

1.7

1.6 

1.6 

4.1 

4.0

2.5 

2.2 

1.8 

2.1 

1.7 

1.6

Apr.

1.4

1.6 

1.9 

1.7 

1.7

1.6 

1.4 

1.4 

4.3 

4.8

3.1 

2.2 

1.9 

1.7 

1.4

l.Z 

1.2 

1.1 

1.2

1.2 

1.2 

1.1 

1.0 

1.0

.9 

.9 

1.6 

2.9 

2.4

Secondfoot-days

0 

10.4 

37.8

315.2

33.3 

43.6 

57.1 

52.3 

18.5 

6.5 

0 

0 

0

259. 5

Hay

1.4

1.1 

.9 

.7

.6

.6 

.6 

.6 

.6

.5 

.5 

.5 

.4 

.4

.4 

.3 

.3 

.4 

.5

.6 

.5 

.4 

.4 

.4

.3 

.3 

.2 

.2 

.9 

1.3

Maximum

0 

.8 

2.4

4.5

1.3 

4.2 

4.3 

4.8 

1.7 

1.2 

0 

0 

0

4.8

June

l.Z 

.9 

.6 

.5 

.5

.4 

.4

.3 

.3 

.3

.2 

.2 

.2 

.1 

.1

.1 

.1 

.1

0 

0

0 

0 

0 

0 

0

0 

0 

,0 

0 

0

Minimum

0 

0 

.9

0

.9 

1.0 

.9 

.9 

.2 

0 

o01

0

o

July Aug.

Mean

0 

.35 

1.22

.86

1.07 

1.50 

1.84 

1.74 

.60 

.22 

0 

0 

0

.71

Sept.

Runoff in 

acre- feet

0 

21

75

627

66 

86 

113 

104 

37 

13 

0 

0 

0

515

Peak discharge (base, 10 sec.-ft.).- No peak above base. 

889419 O - 50 - 12
166 SANTA MARIA RIVER BASIN

Sisqaoc River near Sisquoc, Calif.

Location.- Water-stage recorder, lat. 34°50'15", long. 120°10'10", in SE£ sec. 20, T. 9 N., 

K. ui ,w. , 2 miles upstream from Labrea Creek and 7 miles east of Sisquoc, Santa Barbara 

County. Datum of gage is 620.60 feet above mean sea level, datum of 1929 (Corps of 

Engineers bench mark). A temporary gage at different datum about 1,000 feet upstream, 

generally used for periods of low flow, was used for entire current year.

Drainage area.- 290 square miles.

Records available.- October 1943 to September 1948. December 1929 to September 1933 at 

site or permanent gage, but below diversions; records comparable for high flow only.

Extremes.- Maximum discharge during year, 2.9 second-feet Apr. 28 (gage height, 0.88 foot); 

minimum daily, 0.5 second-foot on several days in October.

1930-33, 1943-48: Maximum discharge, 6,250 second-feet (including diversions) Feb. 

8, 1932 (gage height, 6.17 feet); minimum not determined (previously published minima 

did not include diversions); minimum daily since 1943, 0.4 second-foot Sept. 14, 19, 21, 

1947.

Maximum discharge known, 11,000 second-feet Mar. 2, 1938 (gage height, 8.1 feet, from 

high-water mark in gage well), from rating curve extended above 2,800 second-feet.

Remarks.- Records fair except those for Oct. 1 to Dec. 18, which are poor. Records show 

discharge of Sisquoc River above all diversions, and -above area of percolation losses. 

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.6

.6 

.6

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.5 

.5

.6

.5 

.5

.6 

.6 

.6

.5 

.6 

.6 

.8 

.9 

.9

Nov.

1.0 

1.0

.9 

.9

.9

.9 

.8 

.8 

.9 

.8

.9 

.9 

.9 

.9 

.8

.8 

.8 

.9 

.9 

.8

.8 

.8 

.8 

.8 

.6

.6 

.6 

.6 

.9 

.9

Dec.

0.9 

.9

.9 

.9

.9

.9 

.8 

.8 

.8 

.8

.8 

.8

.8 

.9 

.9

.0 

.O 

.0 

.O 

.0

.0 

.0 

.0 

.0

.0

.0 

.0 

.0 

.0

.1 

.1

Jan. Feb.

.4 

.4

.3

.0

.0 

.6 

.4 

.3 

.3

.3 

.3

.3 

.3 

.3

.1 

.4 

.6 

.4

.4 

.4 

.4 

.4 

.4

.6 

.6 

.6 

.6

Month

Octo 

Nove 

Dece

Ca

Janu 

Febri 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

rcber. ..................................

lendar year 1947 

ary

ii. .....................................

st .....................................

ember ..................................

ter year 194?--48 ......................

Mar.

1.4

1.3

1.1

1.1 

1.3 

1.3 

1.3 

1.1

1.1

1.3 

1.8

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

2.0 

1.8

1.6 

1.4 

1.4 

1.4 

1.6 

1.6

Apr.

1.6

1.8

1.8

1.8 

1.8 

1.8

1.8 

2.0

2.0

1.8 

1.6

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1..6 

1.8 

2.0 

1.8 .

Secondfoot-days

18.9 

24.9 

29.0

1,643.3

36.4 

41.5 

44.7 

51.2 

40.6 

30.3 

27.3 

25.1 

20.4

390.3

May

1.8

1.4

1.4

1.4 

1.4 

1.4

1.4 

1.4

1.3

1.3

1.3

i.: i.: i.: i.:

i.: i.: i.: i.: i.i

1.1 1.1 1.1 1.1

1.4 

1.3

Maximum

0.9 

1.0 

1.1

40

1.4

2.0 

2.0 

2.0 

1.8 

1.1 

1.0 

.9 

.8

2.0

5 

5 

5 

5

i

June

1.1

1.1

1.1

1.0 

1.0 

1.0

1.0 1.1 

1.1

1.1 1.1

.9.'9 

.9 

1.0 

1.0

1.0 

.9 

.9 

.9 

.9

1.0 

1.0 

1.0 

1.0 

1.0

Minimum

0.5 

.6 

.8

.4

1.1 

1.1 

1.1 

1.4 

1.1 

.9 

.8 

.8 

.6

.5

July

1.0

.9

.9

.8 

.8 

.8 

.8 

.8

.8

.8

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9 

.9

Aug.

0.9

.9

.8

.8 

.8 

.8 

.8 

.8

.8

.8 

.8 

.8

.8

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8 

.8

Mean

0.61 

.83 

.94

4.50

1.17 

1.43 

1.44 

1.71 

1.31 

1.01 

.88 

.81 

.68

1.07

Sept.

0.8

.6

.6

.8 

.8 

.6 

.6 

.8

.8

.6 

.6 

.6

.6 

.6 

.8 

.8 

.8

.8

.8 

.8 

.6 

.6

.6 

.6 

.6 

.6 

.6

Runoff in 

acre-feet

37 

49 

58

3,260

72

82 

89 

102 

81 

60 

54 

50 

40

774

Peak discharge (basej 50 see.-ft.).- No peak above base.

Sisquoc River near Garey, Calif.

Location.- Water-stage recorder, lat. 34°51'40", long. 120°15'45", in NE^ sec. 17, T. 9 

N - R - 32 W., 0.5 mile downstream fro-n Tepusquet Creek and 3.5 miles southeast of 

Gary. Altitude of gage, about 450 feet.

Drainage area.- 442 square miles.

Records available.- February 1941 to September 1948.

Extremes.- Ho 1'iow during year.

IMl-48: Maximum discharge, 13,000 second-feet Jan. 23, 1943 (gage height, 8.46 

feet), from rating curve extended above 2,000 second-feet on basis of records at upstream stations. No flow during several months of each year.

Remarks.- No flow since December 1946. Some water is diverted above station for irrigation.

Revisions (water years).- W 1011: 1941, 1943.
Location.- Water-stage recorder, lat. 34°51'00", long. 120°12'00", in SE^ sec. 13, T. 9

 N . , K. 32 W., 2,100 feet upstream from mouth and 5.5 miles east of Sisquoc, Santa

Barbara County. Altitude of gaga, about 550 feet. 

Drainage area.- 86.7 square miles.*" 

Records available.- October 1943 to September 1948. 

Extremes.- No flow during year.

 T553-48: Maximum discharge, 1,600 second-feet Feb. 22, 1944 (gage height, 5.22 

feet), from rating curve extended above 114 second-feet by logarithmic plotting; no 

flow during most of each year.

Remarks.- No flow since April 1946. No diversion. Perennial low flow from basin above

 sinks beneath stream bed before reaching this station.

Tepusquet Creek near Sisquoc, Calif.

Location.- Water-stage recorder, lat. 34°52'05", long. 120°14'40", in NE£ sec. 9, T. 9 N., 

H. yy W., 1.1 miles upstream from mouth and 3 miles east of Sisquoc, Santa Barbara 

County. Altitude of gage, about 500 feet.

Drainage area.- 28.9 square miles.

Records available.- October 1943 to ?eptember 1948.

Extremes.- Maximum discharge during year, 1.5 second-feet Apr. 28 (gage height, 1.86 feet); 

minimum daily, less than 0.1 second-foot during September.

1943-48; Maximum discharge, 200 second-feet Feb. 21, 1944 (gage height, 3.86 

feet), from rating curve extended above 22 second-feet by logarithmic plotting; practically no flow part of Sept. 30, Oct. 3, 1945.

Remarks.- Records good. No diversion. Station destroyed June 11 by bridge construction. 

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.1

.1

.1.1

.1

.2

.2

.2

.2

.2

.2

.1

.1

1

. 1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

Nov.

0.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

-

Dec.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

Jan.

0.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

Feb.

0.3

.3 '.3

.3

.5

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.3

.3

.3

.3

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1947 ......................

January ....................................

February ...................................

March.. ....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.3

.4

.3

.3

.3

.3

.3

.3

.4

.3

.3

.3

.3

.3

.3

.3

Apr.

0.3

.3

.4

.3

.3

.4

.3

.3

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.4

.3

.3

Secondfoot-clays

4.2

4.6

6.6

102.6

7.1

8.6

9.6

9.0

6.7

6.7

6.2

3.1

2.7

75.1

May

0.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.5

.3

Maximum

0.2

.2

.3

.7

.3

.5

.4

.4

.5

.3

_

-

0.5

June

0.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

> .2

-

Minimum

0.1

.1

.2

.1

.2

.2

.3

.2

.1

_

_

-

-

July

. 0.2

Aug.

 0.1

Mean

0.14

.15

.21

.28

.23

.30

.31

.30

.22

.22

.20

.10

.09

.205

Sept.

0.09

-

Runoff in 

acre-feet

8.3

9.1

13

203

14

17

19

18

13

13

12

6.1

5.4

148

Peak discharge (base, 2 sec.-ft.).- No peak above base. 

Note.- No gage-height record June 11 to Sept. 30; discharge computed 

measurements.

basis of 9 discharge
168 ARROYO GRANDE BASIN

Arroyo Grande at Arroyo Grande, Calif.

'Location.- Water-stage recorder and broad-crested weir, lat. 35°07'25", long. 120°34'20", 

TrTFTsmo Grant at Arroyo Grande, San Luls Oblspb 1 County, 0.25 mile upstream from 

Pacific Coast Railway bridge. Datum of gage is 97.8 feet above mean sea level, datum 

of 1929, supplementary adjustment of 1934.

Drainage area.- 106 square miles.

Records available.- December 1939 to September 1948.

Extremes.- Maximum discharge during year, 31 second-feet Mar. 16 (gage height, 1.50 feet); 

minimum daily, 0.1 second-foot on several days in August and September.

1939-48; Maximum discharge, 3,100 second-feet Mar. 4, 1941 (gage height, 8.80 feet, 

datum then in use); minimum daily, 0.1 second-foot on several days in July and August 

1947 and August and September 1948.

Remarks.- Records good. Many small and intermittent diversions by pumping from stream 

above station for irrigation.

Revisions (water years).- W 331: 1940. W 1011: 1941, 1942(M).

Discharge, in second-feet, water year October 1947 to September 1948

Day

]

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

1R

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.2

1.5

1.4

1.0

1.6

1.5

.9

1.4

1.3

3.0

3.3

2.4

2.1

1.7

1.5

2.3

2.8

2.4

2.5

3.1

2.7

2.6

2.5

1.9

1.1

1.8

1.7

1.9

3.3

3.6

3.1

Nov.

3.6

4.0

3.6

3.2

3.2

3.1

2.6

2.8

1.7

1.6

2.2

2.3

1.6

1.4

1.6

2.4

1.8

1.5

1.9

1.4

1.9

2.5

2.3

2.9

2.6

2.2

2.3

2.5

2.0

2.6

-

Dec.

3.5

2.9

2.3

2.1

1.6

2.2

2.6

2.3

2.9

2.7

3.0

2.3

1.9

1.8

1.7

1.1

1.6

2.3

1.2

3.8

4.6

4.2

4.4

4.4

4.2

3.5

3.3

3.3

3.2

2.8

3.7

Jan.

4.4

4.2

4.2

3.9

4.4

3.4

3.3

3.0

3.3

3.1

3.1

1.9

1.1

.9

.4

.9

1.0

1.1

1.2

.4

.5

.7

1.1

1.1

1.2

1.4

.9

.9

.3

.3

.4

Feb.

0.8

.6.9-

1.5

5.0

6.7

5.8

5.8

5.0

5.2

5.2

4.8

5.2

4.8 4.6'

4.5

2.9

2.1

1.3

1.1

1.2

1.0

1.2

1.0

1.1

1.1

1.0

2.8

3.9

-

Month

December . ..................................

Calendar year 1947 .............. .......

April. .................................. ..

Mnv

September. .................................

Water year 1947 -48 ......... ............

Mar.

3.8

2.4

2.0

2.1

1.6

1.8

1.5

1.2

.9

.7

.8

.8

3.7

5.0

4.6

7.4

7.2

6.0

5.6

5.4

4.8

4.4

3.8

7.4

7.2

6.0

6.0

4.8

5.6

5.8

5.2

Apr.

4.8

5.0

5.0

4.4

4.2

4.6

4.6

4.5

6.2

6.2

6.0

6.0

6.2

5.8

5.3

4.9

4.8

4.0

5.0

4.9

4.2

4.2

3.0

2.2

2.2

3.3 3.'0

3.3

6.2

5.8

-

Secondfoot days

87.4

1,450.7

11,6

902.3

May

6.2

6.4

6.1

4.0

2.6

3.5

2.7

2.5

3.1

1.7

1.6

1.9

1.3

.9

.7

1.6

1.9

1.6

3.2

4.1

3.6

4.2

5.9

4.9

3.4

2.5

2.1

2.4

2.6

6.5

6.9

Maximum

4.6

12

2 3

1.2

7.5

June

7.5

6.9

5.8

6.5

7.4

7.4

6.8

5.3

4.8

4.1

3.2

2.8

3.4

2.6

1.6

2.1

1.1

1.6

al.4

al.3

al.2

1.1

1.0

1.0

.9

1.7

3.5

3.0

1.7

1.1

-

Minimum

2

.]

July

1.0

1.0

1.0

2.4

1.8

2.0

1.6

1.2

1.1

.9

1.2

1.2

1.2

1.2

.8

.6'

.2

.4

.5

.5

.8

1.0

1.2

1.0

.6

.6

.2

.2

.6

.3

.2

Aug.

0.5

.4

.7

1.0

1.4

1.4'

1.9

2.3

1.6

1.1

.9

1.2

.8

1.2

.9

.7

1.0

.6

.5

.2

.7

.6

.7

.6

.4

.3

.2

.1

.4

.2

.1

Mean

2.82

3.97

3 31

92

.39

2.47

Sept.

0.1

.1

.1

.1

.6

.8

.7

.6

1.2

.9

.7

.4

f .7

f .1

.1

.1

.1

.4

.3

.5

.6

.2

.3

.2

.4

.6

.2

.2

.1

.2

-

Runoff in 

acre-feet

173

2,880

23

1,790

Peak discharge (base, 4o sec.-ft.).- No peak above base.

a No gage-height record; discharge interpolated.

f Computed on basis of partly estimated gage-height record.
SALINAS RIVER BASIN 169

Salinas River near Pozo, Calif.

Location.- Water-stage recorder, lat. 35°18', long. 120°24', in SE£ sec. 18, T. 30 S., R. 

ib ti., 1.5 miles downstream from Pozo Creek, 1.7 miles west of Pozo, and 7 miles upstream from Salinas Dam. Altitude of gage, about 1,350 feet (from topographic map).

Drainage area.- 72.5 square miles.

Records available.- July 1942 to September 1948.

Extremes.- Maximum discharge during year, 82 second-feet Apr. 10 (gage height, 4.55 feet); 

minimum, less than 0.1 second-foot at various times August to September.

1942-48; Maximum discharge, 5,800 second-feet Jan. 21, 1943 (gage height, 13.35 

feet), from rating curve extended above 2,500 second-feet on basis of storage increase 

in Salinas Reservoir and by logarithmic plotting; minimum, that of August and September 1948.

Remarks.- Records fair. No storage or diversion above station, 

saunas Reservoir below station.

Water is stored in

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.5 

.4 

.3 

.2 

.2

.3

.4

.4 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5

.5 

.5

.6 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.9 

1.1 

1.4

Nov.

1.4

1.6

1.1 

1.4

.9

.9

.7 

.6 

.7

.9 

.9 

.9

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 .9'

.6 

.7 

.7

Dec.

0.9

1.4

1.4

1.1 

1.1

1.4

1.1

1.1 

1.1 

1.4

2.2

1.6 

1.1 

.9 

.9

1.1

.9

.9 

.9

1.1 

1.1 

1.1

Jan.

1.1

1.4

1.1

1.1 

1.1

1.1 

1.1

1.1

.9 

.9

1.1

1.1

.9 

.9

1.1 

1.1 

1.1

1.1 

.9 

.9 

1.1 

1.1 

1.1

Feb.

1.1

1.1

2.9 

2.2

1.4 

1.4

1.4

.9

1.1 

1.1 

1.1

1.1

1.1- 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.4 

1.4

Month

Ooto 

Nove 

Decs

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

nber. ..................................

lendar year 194"1 

ary

h. .....................................

f

St. ............................... ....

ember. .................................

ter year 1947-48 ......................

Mar.

1.1

1.1

1.1 

1.1

1.1 

1.1

2.9

1.4

2.5 

2.2 

1.6

1.6 

1.4

1.4 

1.4 

1.4 

9.4 

2.9

2.2 

1.9 

1.6 

1.6 

1.4 

1.4

Apr.

1.4

2.2

1.9

13 

31

2.5

1.9

1.9 

2.2

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.9 

2.5 

2.5 

2.5

Secondfoot-days

16.3 

29.2 

36.3

624.0

34.1 

40.3 

55.3 

105.8 

45.1 

27.0 

10. 1 

4.6 

3.0

407.1

May

2.2

1.9

1.6 

1.6 

1.6 

1.6 

1.6

1.6

1.

1.

1. 

1.

6 

4 

4

4

1 

4

1.4 

1.4

1.4 

1.1 

1.1 

1.1 

1.1

1.1 

.9 

1.1 

1.1 

1.9 

1.4

Maximum

1.4 

1.6 

2.2

13

1.4 

3.7 

9.4 

31 

2.2 

1.6 

.5 

.3 

.1

31

June

1.

1.

1.

1. 

1. 

1. 

1.

1.

Minimum

0.2 

.6 

.9

.2

.9 

.9

1.1 

1.4 

.9 

.5 

.2 

.1 

.1

.1

July

0.5 .'4 

.5 

.4 

.5

.4 

.4 

.4 

.5 

.5

.5 

.5 

.5 

.3 

.3

.3 

.2

.2 

.2

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Aug.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

.2 

.2 

.2 

.1 

.1

.1 

.1

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Mean

0.53 

.97 

1.17

1.71

1..10 

1.39 

1.78 

3.53 

1.45 

.90 

.33 

.15 

.10

1.11

Sept.

0.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1

..1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Runoff in 

acre-feet

32 

58 

72

1,240

68 

80 

110 

210 

89 

54 

20 

9.1 

6.0

808

Peak discharge (base, 970 sec.-ft.).- No peak above base.
1*70 SALINAS RIVER BASIN 

Salinas Reservoir near Pozo, Calif.

Location.- Water-stage recorder, lat. 35°20', long. 120°30', in sec. 5, T. 30 S., R. 14 

K., at dam on Salinas River, 2 miles upstream from Pilitas Creek and 7.5 miles northwest of "Pozo. Datum of gage is at mean sea level (levels by Corps of Engineers).

Drainage area.- Ill square miles.

Records available.- December 1941 to September 1948.

Extremes.- Maximum contents during year, 8,220 acre-feet Oct. 1 (elevation, 1,268.77 

1'eet); minimum, 5,690 acre-feet Sept. 30.

1941-48: Maximum contents, 24,120 acre-feet Mar. 19, 1945 (elevation, 1,298.45 

feet); minimum, 1,730 acre-feet Nov. 6-10, 1943.

Remarks.- Reservoir is formed by concrete-arch dam; outlet closed on Dec. 6, 1941. Usable 

capacity, 26,000 acre-feet between elevations 1,220.3 feet (bottom of outlet pipe) and 

1,301.0 feet (spillway crest) above mean sea level. Water diverted at dam into pipe 

line to small reservoir 10 miles below from which it is pumped to Camp San Luis Obispo 

and city of San Luis Obispo for water supply; water is also released down natural 

channel of river. Records show usable contents at 12 p.m.

Contents, In acre-feet, water year October 1947 to September 1948

Day

1

2

3

4

S

6

1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

8,220

8,210

8,200

8,180

8,160

8,150

8,130

8,110

8,100

8,100

8,090

8,080

8,07O

8,060

8,050

3,040

8,030

8,OZO

8,010

8,000

,980

,970

,960

,940

,930

,910

,900

,890

,900

7,890

7,880

Nov.

7,870

7,860

7,850

7,840

7,830

7,820

7,810

7,790

7,780

7,770

7,750

7,740

7,730

7,720

7,720

7,710

7,700

7,630

7,680

7,670

7,660

7,650

7,640

7,640

7,630

7,620

7,600

7,600

7,580

7,580

-

Dec.

7,560

7,560

7,550

7,550

7,540

7,540

7,530

7,530

7,520

7,510

7,510

7,510

7,500

7,490

7,480

7,470

7,470

7,470

7,470

7,500

7,500

7,500

7,500

7,490

7,490

7,480

7,480

7,470

7,470

7,460

7,460

Jan.

7,460

7,450

7,450

7,440

7,440

7,440

7,430

7,420

7,420

7,420

7,410

7,410

7,400

7,400

7,390

7,390

7,380

7,380

7,370

7,360

7,360

7,360

7,350

7,350

7,340

7,330

7,330

7,320

7,310

7,310

7,300

Feb.

7,300

7,290

7,280

7,310

7,340

7,360

7,360

7,360

7,350

7,340

7,330

7,340

7,340

7,330

7,330

7,330

7,330

7,320

7,320

7,320

7,310

7,310

7,300

7,290

7,280

7,280

7,270

7,270

7,270

_

-

Mar.

7,260

7,260

7,250

7,240

7,230

7,230

7,220

7,220

7,210

7,200

7,200

7,190

7,230

7,240

7,240

7,270

7,280

7,280

7,280

7,280

7,280

7,280

7,280

7,430

7,450

7,450

7,460

7,460

7,470

7,460

7,460

Apr.

7,470

7,480

7,490

7,500

7,510

7,520

7,520

7,530

7,600

7,690

7,710

7,720

7,730

7,730

7,730

7,740

7,730

7,730

7,730

7,720

7,720

7,720

7,710

7,700

7,700

7,690

7,690

7,710

7,720

7,710

May

7,700

7,690

7,690

7,690

7,690

7,680

7,660

7,650

7,640

7,63O

7,620

7,610

7,600

7,590

7,570

7,560

7,540

7,540

7,530

7,530

7,510

7,510

7,500

7,490

7,480

7,470

7,450

7,440

7,420

7,430

7,420

June

,420

,400

,400

,390

,380

,370

,360

,350

,340

,320

,310

,300

,280

,270

,260

,250

,230

,210

,200

,180

,170

,150

,130

,110

,100

,080

,060

,050

,030

7,020

July

6,990

6,970

6,960

6,940

6,920

6,900

6,890

6,87O

6,860

6,850

6,830

6,820

6,800

6,79O

6,770

6,760

6,740

6,720

6,700

6,690

6,670

6,650

6,640

6,620

6,610

6,580

6,570

6,550

6,540

6,520

6,500

Aug.

6,480

6,470

6,450

6,430

6,420

6,400

6,380

6,370

6,360

6,350

6,340

6,320

6,310

6,290

6,280

6,260

6,250

6,240

6,220

6,210

6,200

6,190

6,170

6,160

6,150

6,140

6,120

6,100

6,090

6,080

6,070

Sept.

6, 50

6,040

6,030

6,020

6,OOO

5,990

5,980

5,970

5,960

5,940

5,930

5,920

5,900

5,890

5,870

5,860

5,850

5,830

5,820

5,810

5,800

5,790

5,780

5,760

5,750

5,740

5,730

5,720

5,710

5,690

Monthly elevation and contents, water year October 1947 to September 1948

Date

Dec. 31. .................

Calendar year 1947.....

Sept. 30. .................

Water year 1947-48.....

Elevation 

(feet)

,266.59

.

,260.97

-

Contents 

(acre-feet)

7,460

_

5,690

-

Change In contents 

during month 

(acre-feet)

-120

-5,78O

-380

-2,550
SALINAS RIVER BASIN 171

Salinas River above Pilitas Creek, near Santa Margarita, Calif.

Location.- Water-stage recorder and concrete control, lat. 35°21', long. 120°3l', in NE£ 

sec. b, T. 30 S., R. 14 E., immediately upstream from Pilitas Creek and 6 miles southeast of Santa Margarita. Altitude of gage, about 1,150 feet, unadjusted.

Drainage area.- 125 square miles.

Records available.- July 1942 to September 1948.

Extremes.- Maximum discharge during year, 5.0 second-feet Mar. 25 (gage height, 0.75 

root); no flow May 10 to Sept. 30.

1948-48: Maximum discharge, 562 second-feet Jan. 28, 1943 (gage height, 2.49 feet); 

no flow at times during 1944, 1947, 1948.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Flow regulated by Salinas Reservoir beginning in 1941 (see preceding page). Small 

amount of water diverted to Camp San Luis Obispo and city of San Luis Obispo.

Rating table, water year 1947-48 (gage height, In feet,

and discharge In second-feet) 

(Shifting-control method used Apr. 10 to May 3)

Discharge, in second- feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.4

.3

.3

.3

.3

.3

.4

.4

.4

.6

.5

.4

.4

.4

.4

.5

.6

.6

.6

.6

.5

.6

.6

.5

.5

.5

.5

.6

.7

.7

.6

Nov.

0.

-

Dec.

0.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.5

.5

.2

.2

.2

.2

.1

.2

.1

.1

.1

.1

Jan.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

Feb.

0.2

.2

.1

.2

.9-

.7

.3

.2

.3

.3

.4

.3

.3

.3

.3

.2'

.2

.2

.2

.2

.2

.2

.3

.4

.3

.3

.4

.4

.3

-

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1947 ......................

January .....................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

Jnly.. .....................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

0.

a.

a.

a.

a.

a.

a.

a.

a.

a.a.'

a.

a.

al.

a.

a .

a. !

a.

a.

a.

Apr.

aO.l

.2

.4

.3

.4

.4

.3

.3

.5

1.0

.4

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.2

-

Secondfoot-days

15.0

4.3

5.6

1

4.7

6.5

1.1

0

0 

0

0

52.8

May

0.2

.2

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0.7

.6

.5

118

.3

.9

.1.3

1.0

.2

0

0 

0

0

1.8

June

Minimum

0.3

.1

.1

0

.1

.1

.1

.1

0

0

0

0 

0

0

July Aug.

Mean

0.48

.14

.18

4.08

.15

.30

.21

 23

04

0

0

0

0

.14

Sept.

Runoff in 

acre-feet

30

8.5

11

9.3

17

13

13

2.2

0

0 

0

0

104

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

station near Santa Margarita.
SALINAS RIVER BASIN 

Sallnas River near Santa Margarita, Calif.

Location.- Water-stage recorder, lat. 35°24'20", long. 120°34i05", in N| sec. 15, T. 29 

 a., H7 13 E., 250 feet downstream from Calf Canyon highway bridge, 250 feet upstream

from Morano Creek, and 2.5 miles northeast of Santa Margarita. Datum of gage is

959.41 feet above mean sea level, datum of 1929.

Drainage area.- 148 square miles.

Records available.- April to September 1922, February 1932 to September 1948.

Average discharge.- 16 years (1932-48), 44.2 second-feet.

Extremes.- Maximum discharge during year, 91 second-feet Apr. 10 (gage height, 5.99 feet); 

no now during several months.

1932-48; Maximum discharge, 11,000 second-feet Feb. 11, 1938 (gage height, 17.0 

feet), from rating curve extended above 3,000 second-feet on basis of velocity-area 

studies; no flow during several months of each year except 1942-46.

Remarks.- Records fair. Flow regulated by Salinas Reservoir beginning in 1941 (see p.170). 

Small amount of water diverted to Camp San Luis Obispo and city of San Luis Obispo.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

6

4

b

6

7

iO

11

1213

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

o

0

0

0

.8

3.3

2.3

1.2

.9

.9

.5

.4

.5

.5

.4

.4

.4

.4

.3

.3

.3

.3

.3

.2.

.3

.2

.3

.4

-

Month

December. ............................. ....

Calendar year 1947 ......................

April ......................................

May. .......................................

September . .................................

Water year 1947-48 ......................

Mar.

0.5

.5

.3

.3

.2

.2

.3

.3

.3

.3

.3

.3

.9

3.3

2.0

1.9

7.2

3.3

2.0

1.4

1.0

.8

.6

26

11

3.5

2.3

1.5

1.5

1.4

1.2

Apr.'

1.1

1.1

1.2

1.4

1.5

2.0

1.4

1.2

2.0

36

7.8

3.5

1.8

1.6

1.3

.9

.9

.7

.6

.6

.6

.6

.5

.3

.3

.3

.3

.7

2.0

1.6

Secondfoot-days

0

1,538.4

0

171.8

May

1.2

.7

.5

.3

.2

.2

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

o

0

0

0

0

0

Maximum

0

118

0

36

June

Minimum

0

0

0

0

July Aug.

Mean

0

4.21

2 53

0

.47

Sept.

Runoff in 

acre- feet

0

3,060

32

1 S?

150

0

341
SALINAS RIVER BASIN 173

Sallnas River at Paso Robles, Calif.

Location.- Wire-weight gage, lat. 35°37'40", long. 120°41'05", at bridge on State Highway 

41 in Faso Robles, 3.5 miles upstream from Huerhuero Creek. Datum of gage is 670.61 

feet above mean sea level (levels by Corps of Engineers).

Drainage area.- 389 square miles.

Records available.- October 1939 to Se'ptember 1948.

Extremes.- Maximum discharge observed during year, 2,930 second-feet Apr. 10 (gage height, 

10.U feet); no flow during several months.

1939-48: Maximum discharge, 14,200 second-feet Mar. 9, 1943 (gage height, 16.2 

feet), from rating curve extended above 6,000 second-feet on basis of velocity-area 

studies and logarithmic plotting; no flow during several months in each year.

Maximum stage known, 16.9 feet during flood of Feb. 10-13, 1938.

Remarks.- Records fair except those for periods of doubtful or no gage-height record,

which are poor. Gage read twice daily. Small diversion above station. Flow regulated 

by Salinas Reservoir beginning in 1941 (see p.170).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Mcnth

October. ...................................

November. ........................ .........

December. ..................................

Calendar year 1947 ......................

January. ...............................

February ...................................

March. .....................................

April ................................. ....

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

o

o

o

0

o

o

o

0

0

0

0

o

o

0

o

0

0

o

o

o

0

0

0

0

70

93

46

46

45

42

27

Apr.

d26

d24

d22

d20

41

83

69

49

214

1,430

345

156

106

77

56

56

58

a55

a 50

a45

a40

a35

a30

26

23

21

18

17

22

28

Secondf cot-days

0

0

0

2,846.0

0

O

369

3,242

197.1

10.5

0

0

0

3,818.6

May

25

20

20

18

14

12

10

9.2

8.3

a7

a6

a5

a4

a4

a3

a2

1.8

1.8

1.8

1.8

1.5

1.5

1.5

.8

0

O

0

3.0

2.1

Maximum

o

0

0

67

0

O

93

1,430

25

1.5

0

O

O

1,430

June

.2

.0

.5

.3

.0

.0

.0

.8

.4

.2

.3

.3

.3

.2

0

O

0

0

0

0

o

o

0

0

0

0

0

0

0

o

Minimum

0

0

o

L

o

0

0

17

0

0

0

o

o

o

July Aug.

Mean

0

0

0

7.80

0

0

11.9

108

6.36

.35

0

0

0

10.4

Sept.

Rnnoff in 

acre-feet

0

o

0

5,640

O

0

732

6,430

391

21

0

0

O

7,570

Peak diacharge (baae, 1,08O aee.-ft.).- Apr. 10 (4 a.m.) 2,930 aec.-ft.

a No gage-height record; diacharge interpolated.

d Doubtful gage-height record; diacharge interpolated.
174 SAUNAS RIVER BASIN

Salinas River near Spreokles, Calif.

Location.- Water-stage recorder and wire-weight gage, lat. 36°37'50", long. 121°40'40", in 

Ki Toro Grant, at bridge on Salinas-Monterey highway, 0.5 mile upstream from Toro Creek 

Creek, 2 miles west of Spreckels, Monterey County, and 4 miles south of Salinas. Datum 

of gage is 22.64 feet above mean sea level, adjustment of 1912.

Drainage area.- 4,231 square miles.

Records available.- January 1900 to August 1901, December 1929 to September 1948.

Average discharge.- 18 years (1930-48), 593 second-feet.

Extremes.- Maximum discharge observed during year, 20 second-feet Nov. 17 (gage height, 

a.48 feet); minimum observed, 0.5 second-foot (field estimate) May d to Supt 20

1929-48: Maximum discharge, 75,000 second-feet Feb. 12, 1938 (gage height, 25.0 

feet), from rating curve extended above 25,800 second-feet on basis of velocity-area 

studies, verified by slope-area determination; no flow at times during period 1929-40.

Maximum stage known, 26.6 feet Mar. 7, 1911, as indicated at oil pumping station 

opposite gage.

Remarks.- Records poor. Many small diversions above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8-3 

8.6 

9.0 

9.2 

10

11 

12 

12 

12 

12

12 

12 

12 

13 

14

14 

15 

15 

16 

17

16 

17 

17 

16 

16

16 

16 

17 

17 

17 

17

Nov.

16 

17 

16 

17 

16

17 

18 

19 

19

19

18 

18 

18 

19

19

19 

20 

18 

18 

19

18 

18 

17 

18 

17

17 

17 

17 

17 

17

Dec.

14 

14 

15 

16 

13

13 

13 

13 

14 

14

15 

16 

17 

8.3

8.0

8.3 

8.1 

7.8 

6.9

6.9

7.0 

8.6 

9.2 

10 

12

13 

13 

14

13 

10 

6.9

Jan.

5.1 

4.1 

4.0 

4.1 

4.1

3.9 

3.7 

3.9 

3.8 

3.9

3.8 

3.5 

3.4 

3.2 

3.3

3.2 

3.0 

2.9 

2.8 

2.9

3.0 

3.0 

2.5 

2.2 

1.7

1.9 

1.9 

1.7 

1.7 

1.5 

1.7

Feb.

1.9 

1.6 

1.7 

1.9. 

1.7

1.7 

1.7 

1.7 

1.9 

1.7

1.6 

1.6 

1.5 

1.4 

1.6

1.5 

1.2 

1.4 

1.6 

1.6

1.5 

1.5 

1.3 

1.1

1.1

1.1 

1.0 

1.1 

1.1

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

mber. ........................ .........

mber. ............................. ....

lendar year 1947 

ary

h. ................................ ....

St. ....................................

ember ...............................

ter year 1947-48 ......................

Peak discharge (base, 270 sec. -ft.).- No p

e Stage-discharge relation indefinite; dis

Mar.

1.0 

1.1 

1.1 

1.3 

1.3

1.1 

1.0 

1.1 

1.2 

1.5

1.5 

1.5 

1.8 

1.9

1.9

1.9 

1.9 

1.7 

1.8 

1.7

2.0 

2.4 

2.5 

2.8 

2.5

2.3 

2.1 

1.9 

1.9 

2.0 

1.9

Apr.

1.9 

1.8 

1.9 

1.9 

1.9

1.9 

1.8 

1.8 

1.8 

1.7

1.7 

1.7 

1.8 

1.8 

1.6

1.7 

1.8 

1.7 

1.8 

1.5

1.5 

1.6 

1.7 

1.9 

1.6

1.7 

1.5 

1.2 

1.2 

1.3

May

1.3 

1.1 

.9 

.8 

.8

.8

.7

> e .5

fol^ays « ,*"» 

426.1 17 

533 20 

358.0 17

3,640.1 228

95.4 5.1 

43.3 1.9 

53.6 2.8 

50.7 1.9 

18.4 1.3 

15.0 .5 

15.5 .5 

15.5 .5 

20.0 1.0

1,644.5 20

June

 eO.5

Minimum

8.3

16 

6.9

.

1.5 

1.0 

1.0 

1.2 

.5 

.5 

.5 

.5 

.5

_

July

> eO.5

Aug.

 eO.5

Sept.

. eO.5 

. el.O

u=« Runoff in Mean acre-feet

13.7 845 

17.8 1,060 

11.5 710

9.97 7,230

3.08 189 

1.49 86 

1.73 106 

1.69 101 

.59 36 

.5 30 

.5 31 

.5 31 

.67 40

4.49 3,260

Bak above base . 

:harge computed on basis of several field estimates.
SALINAS RIVER BASIN 175

Toro Creek near Pozo, Calif.

Location - Water-stage recorder and 90° V-notch weir, lat. 35°20', long. 130°25', in 

sec. 13, T. 30 S., R. 14 E., immediately upstream from mouth and 3 miles northwest of 

Pozo. Altitude of gage, about 1,310 feet (from topographic map).

Drainage area.- 9.5 square miles.

Records available.- June 1943 to October 1948 (low-water records only).

Extremes.- Minimum discharge during period June to October 1948, 0.03 second-foot Sept. 10,

1942-48: Minimum discharge, that of Sept. 10, 11, 1948. 

Remarks.- Records good. Plow partly regulated at swimming pool upstream.

Discharge, In second-feet, July to November 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

July

0.07

.07

.09

.11

.11

.11

.11

.07

.07

.06

.06

.07

.07

.07

.07

.07

.06

.05

.07

.05

.07

.07

.08

.08

.08

.08

.07

.05

.05

.06

.06

Month

July. .....................................

August ....................................

September. ............. ...................

October. ............... ...................

November ............... ...................

The period. . . . .~ . . ......................

Aug.

0.06

.06

.04

.05

.06

.04

.05

.04

.05

.06

.06

.06

.05

.06

.05

.07

.07

.06

.05

.04

.04

.05

.05

.05

.05

.05

.05

.05

.05

.04

.04

Sept.

0.04

.04

.04

.04

.05

.05

.05

.05

.04

.04

.04

.04

.05

.05

.04

.04

.05

.07

.07

.07

.08

.07

.08

.08

.09

.09

.07

.06

.05

.05

-

Oct.

0.07

.0

.1

.1

7

0

2

.10

.08

.0

.0

.0

7

8

8

.11

.12

.1

.1

.1

2

2

2

.12

.12

.1

.1

.1

2

2

3

.13

.10

.0

.0

.0

7

5

7

.08

.09

.1

.1

.0

.0

1

1

8

7

.11

Second- u.^i foot-days "ax1" 

2.26 0.11

1.60 .07

1.68 .09

3.04 .13

1.00 .18

-

Nov.

0.11

.18

.14

.14

.13

.15

.15

_

_

-

_

_

-

_

-

_

_

-

-

-

_

-

-

_

-

_

_

-

-

_

-

Minimum

0.05

.04

.04

.05

.11

-

4

Mean Runo" i? 

acre-feet

0.073 4.48

.052 3.17

.056 3.33

.098 6.03

.143 1.98

19.0
176 SALINAS RIVER BASIN

Naoimlento River near San Miguel, Calif.

Location.- Water-stage recorder and concrete control,-lat. 35°47'00", long. 120°47'24", in 

 SE-f sec. 4, T. 25 S., R. HE., 4 miles upstream from mouth and 5.5 miles northwest of

San Miguel. Datum of gage is 555.48 feet above mean sea level (levels by Corps of

Engineers).

Drainage area.- 354 square miles.

Records available.- October 1939 to September 1948.

Extremes.- Maximum discharge during year, 9,160 second-feet Apr. 10 (gage height, 6.00 

feet), from rating curve extended above 3,600 second-feet; no flow Oct. 1 to Mar. 16, 

June 28 to Sept. 30.

1939-48: Maximum discharge, 50,800 second-feet Jan. 21, 1943 (gage height, 10.45 

feet), from rating curve extended above 17,000 second-feet bv logarithmic plotting; no 

flow for several months in each year except possibly 1942-44..

Remarks.- Records fair. No storage or large diversion.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

352 

200 

120 

112

80 

66 

56 

1,950 

1,350

474 

248 

160 

128 

104 

84

Apr.

72 

64 

872 

496 

608

566 

325 

228 

3,040 

4,040

1,140 

651 

423 

310 

210

188 

160 

142 

120 

108

101 

94 

90 

84 

77

69 

64 

72 

90 

358

Secondroot-days

0 

0 

0

14,319.3

0 

0 

5,484 

14,862 

1,800 

301.4 

0 

0 

0

22,447.4

May

315 

182 

138

115 

101

90 

75 

64 

58 

53

49 

45 

42 

38 

36

34 

34 

32 

30 

29

27 

27 

26 

26 

22

19 

19 

18 

16 

19 

21

Maximum

0 

0 

0

1,860

0 

0 

1,950 

4,040 

315 

30 

0 

0 

0

4,040

June

30 

30 

26 

22 

19

18 

18 

15 

15 

14

12

11 

11 

9.5 

8.7

6.8 

4.9 

4.9 

4.5 

4.1

4.S 4.1 ' 

3.4 

2.2

1.6

1.0 

.2

0 

0 

0

July

Minimum

0 

0 

0

0

0 

0 

0 

64 

16 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

39.2

0 

0 

177 

495 

58.1 

10.0 

0 

0 

0

61.3

Sept.

Runoff In 

acre-feet

0 

0 

0

28,400

0 

0 

10,880 

29,480 

3,570 

598 

0 

0 

0

44,520

Peak discharge (base, 9,600 sec.-ft.).- Ho peak above base.
SALINAS RIVER BASIN 177 

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 

(from topographic map).

Drainage area.- 282 square miles.

Records available.- April to September 1922, December 1929 to September 1948.

Average discharge.- 18 years (1930-48), 95.4 second-feet.

Extremes.- Maximum discharge during year, 344 second-feet Apr. 10 (gage height, 1.90 

feet); no flow Oct. 1 to Mar. 12, July 4 to Sept. 30.

1929-48: Maximum discharge, 11,400 second-feet Feb. 11, 1941 (gage height, 5.58 

feet), from rating curve extended above 8,000 second-feet; no flow for several months 

each year except possibly 1942, 1943.

Remarks.- Records fair. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 194? to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ...................................

lendar year 1947 

ary

ember ..................................

ter year 1947-48 ......................

Peak discharge (base, 320 sec. -ft.).- Apr

Mar.

o 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

a.l 

a.l 

a.l

a.l 

a.l 

a.l 

a.l 

a.l

a.l 

a.l 

a.l 

a.l 

a.l

a.l 

a.l 

a.l

a'!l 

a.l

Apr.

a.l 

a.l 

a.l 

a.l 

36

111 

93 

72 

129 

256

170 

123 

96 

81 

72

61 

52 

54 

54 

54

51 

47 

42 

39 

37

33 

31 

32 

32 

48

Secondfoot-days

0

o

0

4,096.5

0 

0 

1.9 

1,906.4 

811 

94.9 

.3 

0 

0

2,814.5

10 (8 a.m.

May

69 

58 

51 

50 

45

38 

34 

32 

31 

29

28 

27 

26 

24 

23

22 

21 

20 

20 

20

18 

18 

17 

14 

13

12 

11 

9.8 

9.2 

11 

10

Maximum

0 

0 

0

177

O 

0 

.1 

256 

69 

11 

.1 

0 

0

256

June

11 

10 

9.2 

8.2

7.7

7.3 

6.4 

6.0 

5.2 

4.3

3.7 

3.2 

2.6 

2.1 

1.4

1.1 

1.0 

.9 

.8 

.7

.4 

.3 

.2 

.2

.2 

.2 

.2 

.1 

.1

Minimum

0 

0 

0

0

0 

0 

0

.1

9.2 

.1 

O 

0 

0

0

July

0,1 

,1 

,1 

o

0

0 

0 

0 

0 

0

o

0 

0 

o 

o

o

0 

0

o 

o

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug. Sept.

u<..n Runoff in Mean acre-feet

0 0 

0 0 

0 0

11.2 8_,120

0 0 

0 0 

.06 3.8 

63.5 3,780 

26.2 1,610 

3.16 188 

.01 .6 

0 0 

0 0

7.69 5,580

344 sec. -ft.

a No gage-height record; discharge computed on basis of field estimates
178 SALINAS RIVER BASIN

Arroyo Seco near Soledad, Calif.

Location.- Water-stage recorder, lat. 36°16'50", long. 121°19'20", in sec. 16, T. 19 S. 

K. 6 K., 1.5 miles downstream from Vaquero Creek and 10 miles south of Soledad. Datum of gage is 344.20 feet above mean sea level (Corps of Engineers bench mark).

Drainage area.- 241 square miles.

Records available.- November 1901 to September 1948.

Average discharge.- 46 years (1902-48), 174 second-feet.

Extremes.- Maximum discharge during year, 972 second-feet Apr. 9 (gage height, 5.22 feet); 

no now Oct. 1-19, Aug.. 2 to Sept. 30.

1901-48: Maximum discharge observed, about 22,000 second-feet Feb. 21, 1917, 

Nov. 25, 1926 (gage height, 16.5 feet, site and datum then in use), from rating curve 

extended above 7,500 second-feet; no flow at times during several years.

Remarks.- Records good. No storage or large diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

o

4.9

3.7

3.0

1.8

2.5

3.0

3.4

1.5

3.0

3.9

5.0

7.5

Nov.

9.5

8.7

9.9

11

8.7

7.9

6.6

6.6

6.0

5.0

4.7

4.7

5.3

5.0

6.0

6.6

8.3

8.7

8.3

7.5

7.2

6.9

7.2

7.2

7.2

6.9

6.9

7.2

7.2

7.2

-

Dec.

7.2

6.9

6.9

6.9

8.7

11

7.2

6.0

5.6

6.0

5.6

6.0

6.0

6.3

6.3

6.3

7.2

8.3

12

9.5

40

38

rs

19

16

15

14

13

12

12

11

Jan.

11

11

11

13

12

12

12

12

12

11

11

11

10

9.5

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

Feb.

9.5

9.5

9.5

11

22

50

49

33

26

23

27

24

22

19

18

17

17

19

20

20

19

18

17

16

16

15

15

15

18

-

Month

December. ..................................

Calendar year 1947 .....................

February. .................................

March. .....................................

May. .......................................

July. ......................................

September. .................................

Water year 1947-48 ......................

Mar.

18

16

15

15

14

14

14

13

13

14

13

13

22

138

102

80

152

102

86

84

71

63

56

477

331

180

131

110

101

91

81

Apr.

73

69

106

103

202

210

164

145

515

755

426

280

203

161

133

116

105

96

87

82

76

76

73

66

61

58

56

56

82

181

-

Secondfoot-days

43.2

216.1

360.9

10,623.6

594.5

2,630

80.8

0.1

0

11,290.9

May

123

103

93

85

80

73

68

65

62

60

56

54

51

48

46

43

41

41

42

42

40

38

37

34

32

31

29

29

29

35

50

Maximum

7.5

11

40

541

13

50

477

755

123

38

6.4

.1

0

755

June

38

34

31

29

26

26

26

24

23

22

22

21

19

21

21

20

18

17

16

15

14

13

12

10

9.4

9.4

8.5

8.0

7.4

7.4

-

Minimum

0

4.7

5.6

0

9.5

9.5

13

56

29

7.4

.1

0

0

0

July

6.4

5.2

4.4

5.2

5.5

5.0

5.5

5.2

5.2

4.8

4.6

4.4

3.3

1.7

1.7

1.7

1.5

1.4

1.3

1.3

1.0

.8

.8

.7

.6

.4

.4

.3

.2

.2

.1

Aug.

0.1

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

1.39

7.20

11.6

29.1

10.4

20.5

' 84.8

161

53.5

18.9

2.61

.003

0

30.8

Sept.

Runoff in 

ao re-feet

86

429

716

21,070

637

1,180

5,220

9,550

3,290

1,130

160

0.2

0

22,400

Peak discharge (base. 1.380 sec.-ft.).- No peak above base.
PAJARO RIVER BASIN 179

Pajaro River near Chittenden, Calif.

Location - Wire-weight gage, lat. 36°54'00", long. 121°35i50", at State highway bridge, 

u.b mile downstream from Pescadero Creek, 1 mile southeast of Chittenden, and 2.5 miles 

downstream from San Benlto.River. Datum of gage is 82.06 feet above mean sea level 

(levels by Corps of Engineers).

Drainage area.- 1,188 square miles.

Records available.- December 1939 to September 1948.

Extremes.- Maximum discharge during year, 220 second-feet Apr. 30 (gage height, 6,38 

ree.tjy minimum daily, no flow at times July and August.

1939-48: Maximum discharge, 11,100 second-feet Apr. 4 or 5, 1941 (gage height, 26.2 

feet, from floodmarks); no flow at times.

Flood in February 1938 reached a stage of 31.3 feet, from floodmarks.

Remarks.- Records.fair. Gage read twice daily. Weekly recorder graph available Dec. 19 

to May 6. Small amount of storage and many diversions above station for irrigation.

Cooperation - Water-stage recorder graph furnished by Division of Water Resources, Department or Public Works, State of California.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.2

3,3

3.2

3.3

3.3

3.3

3.3

3.6

3.4

3.8

3.4

3.4

3.2

3.2

3.4

3.8

4.1

4.3

4.5

4.5

4.9

4.9

5.1

4.9

4.9

5.1

5.1

5.3

5.7

5.3

5.5

Nov.

5.8

5.8

5.6

5.5

5.5

5.5

5.4

5.6

5.6

5.8

5.7

6.0

6.1

6.0

6.4

6.6'

6.7

6.7

6.8

7.1

7.2

7.3

7.4

7.5

7.6

7.9

-8.1-

8.2

8.4

8.4

-

Dec.

.9

.2

.6

.5

.6

.6

.8

7.8

7.9

8.0

8.1

8.2

8.4

8.4

8.5

8.7

8:8 8.8-

9.1

9.7

10

9.6

9.4

9.2

9.3

9.4

9.8

9.6

9.4

9.0

10

Jan.

9.4

9.8

9.8

9.8

9.2

9.2

9.3

9.6

9.7

9.9

10

11

11

11

11

11

11

11

11

11

11

11

11

12

12

11

11

11

12

12

11

Feb.

11

11

11

11

13

15

15

13

12

11

10

9.9

9.6

9.4

9.3

9.0

8.8

8.8

8.6

8.6

8.7

8.6

8.6

a. 5

8.5

8.6

8.5

8.8

8.8

_

-

Month

December. ..................................

Calendar year 1947 ......................

April ......................................

Mav

July

September. .................................

Water year 1947-48 ......................

Mar.

8.6

8.2

8.0

7.8

9.0

9.9

9.9

10

11

11

10

9.8

10

12

11

11

11

11

11

11

11

11

10

55

57

47

37

30

25

22

20

Apr.

20

16

18

16

31

29

34

31

29

106

81

59

49

40

34

27

25

21

20

19

17

21

21

21

17

15

13

13

19

138

-

Secondfoot-days

268.3

8,685.2

329 7

12.1

3,662.9

May

168

95

68

54

46

38

43

35

25

21

19

14

11

10

9.1

8.4

8.4

8.8

8.8

9.4

9.1

9.4

7.5

7.3

6.9

6.7

4.2

3.7

3.6

4.7

5.2

Maximum

10

388

.6

' 168

June

5.6

6.1

6.9

5.9

4.8

5.7

5.0

4.1 '3.2

3.0

3.0

3.0

3.6

4.3

3.8

3.5

3.5

3.3

3.2

3.0

2.8

2.7

2.6

2.5

1.7

1.8

1.8

2.0

1.8

1.5

Minimum

7.2

1.1

.1

0 '

July

1.2

1.1

1.0

.8

.6

.6

.2

.5

.5

.6

0

0

.1

.5

.7

.8

.8

1.0

1.3

1.7

1.5

1.2

.8

.7

.6

.8

1.0

1.0

0

O

.6

Aug.

0.6

.5

1.2

1.0

1.2

O

.9

0

0

1.0

.8

0

.6

0

.6

0

0

0

0

O

O

0

0

0

.4

.6

.6

.5

.4

.3

.S

Mean

8.65

23.8

.40

10.0

Sept.

0.3

.4

.4

.4

.4

.5

.5

.5

.5

.5

.6

.6

.5

.6

.3

.1

.2

.3

.1

.2

.5

.6

.5

.4

.5

.3

.4

.3

.3

Runoff in 

acre-feet

532

17,220

24

7,250
lau PAJARO RIVER BASIN

Pacheco Creek near Dunneville, Calif.

Location - Staff gage, lat. 36°58'50", long. 121°22'50", in Ausaymas San Felipe Grant, at 

private road bridge, 3.3 miles northeast of Dunneville, Santa Clara County. Altitude 

of gage, about 240 feet (from topographic map).

Drainage area.- 146 square miles.

Records available.- January 1940 to September 1948.

Extremes.- Ho flow during year.

T9~4~0-48: Maximum discharge, 7,200 second-feet Feb. 2, 1945 (gage height, 15.8 feet, 

from floodmarks), by slope-area method; no flow at various times In 1940, 1943-48.

Remarks.- No flow "ince June 21, 1947. Gage read twice daily with additional readings 

during high water. Detaining reservoir (capacity, about 6,000 acre-feet) several miles 

above station stores flood water for release during low flow. Small diversions above 

station for irrigation. Figures for calendar year 1947 are as follows: total secondfoot-days, 1,632.0; maximum daily discharge, 334 second-feet; minimum daily, no flow; 

mean, 4.47 second-feet; runoff, 3,240 second-feet.

Uvas Creek nea1- Morgan Hill, Calif.

Location.- Water-stage recorder, lat. 37°04'00", long. 121°41'30", in Las Uvas Grant, SOO

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 1948. 

Average discharge.- 17 years, 35.3 second-feet. 

Extremes.- Maximum discharge during year, 305 second-feet Mar. 24 (gage height, 4.26 feet);

minimum, 0.1 second-foot at times Sept. 18-27.

1930-48: 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 during

1931-34, 1943-46. 

Remarks.- Records good. No storage or large diversion above station. Water diverted at

Uvas Dam for municipal supply of Gilroy.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.2

.2

.2

.2

.2

.2

.2

.3

.4

6.1

3.0

1.4

1.0

.9

.9

14

10

3.8

2.1

1.6

1.5

1.5

1.5

1.4

1.3

1.1

1.2

1.4

5.0

6.1

3.2

Nov.

3.5

4.3

3.2

2.6

2.4

2.1

2.1

1.9

1.8

1.8

1.8

1.8

1.8

1.8

2.8

3.5

2.6

2.2

2.1

2.1

2.1

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.8

1.8

~

Dec.

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

.6

.8

.8

.1

.9

.0

.2

.0

.8

.6

.4

.4

.2

.2

Jan.

2.2

4.3

6.4

5.2

4.3

4.0

3.8

3.5

3.2

3.0

3.0

2.8

2.6

2.6

2.6

2.4

2.4

2.2

2.2

2.2

2.1

2.1

2.1

2.1

1.9

1.9

1.8

1.8

1.9

1.9

1.9

Feb.

2.1

2.1

2.1

2.4

6.1

15

11

6.7

5.4

5.8

5.2

4.3

3.8

3.8

3.5

3.2

3.2

3.2

3.0

3.0

2.8

2.6

2.6

2.4

2.4

2.4

2.2

4.3

3.5

_

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 1947 ......................

January. ...................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

2.8

2.6

2.4

2.2

2.2

2.1

1.9

1.9

2.1

2.1

1.9

1.8

4.6

11

8.9

9.7

13

11

12

10

8.1

7.4

34

179

61

31

22

18

15

12

11

Apr.

10

18

48

53

66

54

40

49

109

98

65

50

40

32

28

24

22

20

18

17

16

17

15

14

12

12

11

14

91

166

-

Secondfoot-days

72.1

67.2

74.7

3,892.4

86.4

120.1

504.7

1,229

626 . 3

173 . 2

51.6

24.0

6.6

3,035.9

May

86

57

45

36

31

28

24

22

20

19

18

16

15

14

13

13

12

12

12

12

12

11

9.7

8.9

8.9

8.9

8.5

8.1

9.3

22

14

Maximum

14

4.3

7.1

364

6.4

15

179

166

86

11

2.6

1.1

.4

179

June

9.7

11

10

9.3

8.9

8.5

7.8

7.4

7.1

6.7

6.7

6.4

6.1

5.4

5.2

5.2

4.9

4.9

4.6

4.3

3.8

3.5

3.5

3.5

3.5

3.5

3.2

3.2

3.0

2.4

-

Minimum

0.2

1.8

1.8

.1

1.8

2.1

1.8

10

8.1

2.4

.9

.6

.1

.1

July

2.6

2.6

2.4

2.4

2.6

2.4

2.2

2.2

1.9

1.8

1.8

1.8

1.8

1.5

1.3

1.4

1.4

1.5

1.6

1.5

1.4

1.4

1.4

1.3

1.2

1.2

1.1

1.0

1.0

1.0

.9

Aug.

0.9

.9

.9

.9

.8

.8

.9

.9

1.1

1.1

1.1

1.1

.9

.8

.7

.7

.6

.6

.7

.7

.7

.6

.6

.6

.7

.7

.6

.6

.6

.6

.6

Mean

2.33

2.24

2.41

10.7

2.79

4.14

16.3

41.0

20.2

5.77

1.66

,77

.22

8.29

Sept.

0.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

-

Runoff in 

acre feet

143

133

148

7,720

171

238

1,000

2,440

1,240

344

102

48

13 '

6,020

Peak discharge (base, 970 sec.-ft.).- No peak above base.
PAJARO RIVER BASIN 181 

San Benito River near Willow Creek School, Calif.

Location.- Water-stage recorder, lat. 36°36'30", long. 121°12'0", in NE^- sec. 28, T. 15 

S., K. 7 E., 0.9 mile downstream from Willow Creek, 0.9 mile northwest of Willow 

Creek School, and 10 miles northwest of San Benito. Altitude of gage, about 970 feet 

(from topographic map). Prior to Jan. 28, 1948, at site 0.9 mile downstream.

Drainage area.- 250 square miles.

Records available.- December 1-939 to September 1948.

Extremes.- Maximum discharge during year, 517 second-feet Apr. 10 (gage height, 3.92 

feet) ; no flow Oct. 1-24.

1939-48: Maximum discharge, i-,200 second-feet Apr. 4, 1941 (gage height, 7.8 feet 

at former site and datum), from raring curve extended above 1,600 second-feet; no 

flow Sept. 19-30, Oct. 1-24, 1947.

Maximum stage known', about 9.0 feet (former site and datum), from floodmarks left 

by high water of 1937-38.

Remarks.- Records fair. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0

o

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

.1

.2

.4 

.6

.6 

.6

Nov.

0.6 

.6

.6 

.7

.7 

.7 

.7 

.8 

.9

1.0 

1.0 

1.0 

1.0

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

Dec.

1.2 

1.2

1.2 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.3 

1.3 

1.3 

1.3 

1.3

1.5 

1.6 

1.4 

1.6

2.2 

1.7 

1.5 

1.4 

1.4

1.4 

1.4 

1.4

1,4 

1.4

Jan.

1.4 

1.3

1.2 

1.2

1.2 

1.2 

1.3 

1.3 

1.3

1.3 

1.2 

1.2 

1.1 

al.2

al.3

al.3 

al.3 

al.3

al.4 

al.4 

al.4 

al.4 

al.4

al.5 

al.5 

1.6

1.6 

1.6

Feb.

1.6 

1.6

2.0 

3.2

3.0 

2.6 

2.2 

2.0 

1.8

1.6 

1.5 

1.5 

1.4 

1.4

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.1 

1.0

1.0 

1.0 

1.4

-

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

mber. ..................................

lendar year 1947

1. ................................... .

ember. .................................

Water year 1947 48 ... ..................

Mar.

1.2 

1.1

1.1 

1.1

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

.9 

1.2 

1.6 

1.5

2.2 

1.6 

2.0 

2.2

1.5 

1.2 

1.1 

3.2 

4.3

2.6 

1.8

1.6

1.4 

1.2

Apr.

1.1 

1.1

2.O 

2.4

1.8 

1.8 

1.4 

6.7 

210

56 

15 

6.7 

3.8 

3.0

2.4 

2.2

1.8 

1.8

1.6 

1.6 

1.5 

1.2 

1.2

1.1 

1.0 

2.2

2.2

Secondfoot-days

3.1 

30.0 

43.7

586.9

41.6 

45.7 

48.1 

342.9 

23.2 

11.9 

9.2 

6.2 

6.4

612.0

Peak discharge (baae, 150 seo.-ft.J-- APr - 1° (8:30 a

May

l.S 

1.2

1.0 

1.0

.9

.8 

.8 

.8 

.8

.8 

.8 

.8 

.7 

.6

.7 

.7 

.7 

.8

.8 

.7 

.6 

.5 

.5

.5 

.5 

.4 

.4 

.5 

.6

Maximum

0.6 

1.2 

2.2

32

1.6 

3.2 

4.3 

210 

1.6 

.5 

.4 

.3 

.3

210

June

0.5 

.5

.4 

.4

.4 

.4 

.4 

.4 

.4

.3

.4 

.4 

.4 

.4

.4 

.4 

 .4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.3 

.3

Minimum

0 

.6 

1.2

0

1.1 

1.0 

.9 

1.0 

.4 

.3 

.Z 

.1 

.2

0

July

0.4 

.4

.3 

.3

.3 

.4 

.3 

.3

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3 

.3

Aug.

0.2 

.2

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.3

Mean

0.10 

1.00 

1.41

1.61

1.34 

1.58 

1.55 

11.4 

.75 

.40 

.30 

.20 

.21

1.67

Sept.

0.3 

.3 

.2

.2 

.3

.2 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Runoff in 

ao re feet

6.1

60 

87

1,160

83 

91 

95 

680 

46 

24 

18 

12 

13

1,220

.m.) 517 aeo.-ft.

gage-height record; discharge Interpolated. 

Note-.- Stage-dlacharge relation indefinite Oct. 25 

jomputed on baals of hourly change In gage height.

889419 O - 50 - 13
182 PAJARO RIVER BASIN

Tres Pinos Creek near Tres Pinos, Calif.

Location - Water-stage recorder, lat. 36°45'20", long. 121°17'00", in Santa Ana y Quien 

Sabe Grant, 3.5 miles southeast of Tres Pinos, San Benito County, and 5.5 miles upstream from mouth. Altitude of gage, about 570 feet (from topographic map).

Drainage area.- 209 square miles.

Records available.- December 1940 to September 1948. December 1922 to May 1923 and 

December lyyy to November 1940 at site 1 mile downstream (records of low flow not 

equivalent on account of diversion for irrigation and some subsurface flow at former 

site).

Extremes.- Maximum discharge during year, 62 second-feet Apr. 10 (gage height, 1.61 

reet); minimum, 0.1 second-foot May 17.

1922-23, 1939-48: Maximum discharge, 8,060 second-feet Apr. 4, 1941 (gage height, 

7.75 feet), from rating curve extended above 3,500 second-feet; no flow at times at 

former site; minimum discharge at present site since December 1940, that of May 17.

Flood in February 1938 reached a stage of about 9.0 feet, from floodmarks, present 

site and datum.

Remarks.- Records fair. Diversions above station for irrigation.

Discharge, in second- feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

.8 

.8 

.8 

.8

.8 

.9 

.9 

.9 

.9

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8. 

.7 

.6

.6 

.6 

1.4 

1.8 

1.8 

1.8

Nov.

1.8 

1.8 

1.8 

1.7 

1.7

1.7 

1.6 

1.6 

1.6 

1.6

1.6 

1.5 

1.7

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

l.B 

1. 

1.

1. 

1. 

1. 

1. 

1.8

Dec.

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

1.7 

1.8 

1.8 

1.8 1.9'

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.8 

1.8

Jan.

1.8 

1.8 

1.8 

1.8 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.8 

1.8

1.9 

1.9 

1.9 

1.9 

1.9

1.9

1.9 

1.9 

2.1 

1.9

1.9 

1.7 

1.7 

1.7 

1.7 

1.7

Feb.

1.7 

1.7 

1.8 

1.9 

1.9

1.9 

1.9 

1.8 

1.8 

1.8

1.8 

1.8 

1.8

1.2 

.4 

.4 

.5 

.4

.4 

.4 

.5 

.5 

.5

.5

.6 

.5 

.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

mber... ................................

lendar year 1947 

ary

ember. .........'........................

ter year 1947-48 ......................

Mar.

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.6

.6 

.6 

.5 

.5 

.5

.5 

.5

.5 

.7 

.6

.5 

.5 

.5 

.4 

.4 

.5

Apr.

0.5 

.5 

.5 

.6 

.5

.5 

.5 

.5 

.7 

.7

21

9.0 

5.0

1.8 

1.8 

1.8.

1.7 

1.8

1.7 

1.6 

1.6 

1.6 

1.6

1.5 

1.5 

1.8 

1.8 

1.8

Secondfoot-days

28.1 

51.7 

55.3

553.6

57.4 

34.6 

16.2 

70.8 

33.9 

13.5 

29.2 

9.9 

15.9

416.5

May

1.8 

1.8 

1.7 

1.7 

1.7

1.7 

1.7 

1.7 

1.7 

1.6

1.5 

1.5 

1.5

1.4 

1.1 

1.2

1.3 

.8

.2 

.3 

.2 

.2 

.3

.3

.3 

.4 

.4 

.5 

.4

Maximum

1.8 

1.9 

1.9

4.0

2.1 

1.9 

.7 

21 

1.8 

.6 

1.4 

.4 

1.3

21

June

0.4 

.4 

.5 

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4

.4

.4 

.4 

.4 

.4

.4

.4 

.4 

.4 

.4 

.5

.6 

.6 

.6 

.6 

.6

Minimum

0.6 

1.5 

1-7

.3

1.7 

.4 

.4 

.5 

.2 

.4 

.3 

.3 

.2

.2

July

0.6 

.6 

.7 

.7 

.7

.6 

.6 

.5 

.5 

.4

.4 

.4

1.4

1.4 

1.4 

1.4 

1.4 

U4

1.4 

1.2 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1

.7 

.3

Aug.

0.3 

.4 

.4 

.4 

.3

'.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

.3 

.4 

.3 

.4 

.4

.3 

.3 

.3 

.3 

.3

.3 

..3 

.3 

.3 

.3 

.3

Mean

0.91 

1.72 

1.78

1.52

1.85 

1.19 

.52 

2.36 

1.09 

.45 

.94 

.32 

.53

1.14

Sept.

0.4 

1.1 

1.0 

1.1 

1.1

1.2 

1.2 

1.2 

1.3

.8

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2

.2

Runoff in 

acre-feet

56 

103 

110

1,100

114 

69 

32 

140 

67 

27 

'58 

20 

32

828
SAN LORENZO RIVER BASIN 183

San Lorenzo River at Big Trees, Calif.

Location.- Water-stage recorder, lat. 37°01 1 40", long. 122°03'30", in Canada del Rincon 

Urant, Santa Cruz County, 0.5 mile south of Big Trees station on South- rn Pacific 

Railroad, 1.6 miles downstream from Zayante Creek, and 4 miles north of Santa Cruz. 

Altitude of gage, about 150 feet (from topographic map).

Drainage area.- 110 square miles.

Records available.- April 1937 to September 1948.

Average discharge.- 11 years, 148 second-feet.

Extremes.- Maximum discharge during year, 1,390 second-feet Apr. 29 (gage height, 6.18 

feet) ; minimum, 10 second-feet Oct. 3.

Retrarks. - Records good except those for periods of no gage-height record, which are 

fair. Many small diversions above station for domestic supply.

Discharge, in second-feet, water year October 1947 to September 1946

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12

11

11

11

12

12

13

17

18

69

39

24

18

17

16

130

66

34

26

24

23

22

20

19

19

16

18

20

53

39

28

Nov.

32

34

28

25

24

23

22

22

22

20

20

20

19

20

27

28

24

22

21

21

21

21

20

20

20

20

21

20

20

21

-

Dec.

21

20

20

23

24

23

22

21

21

21

21

21

21

20

20

20

31

29

24

151

132

61

44

36

32

30

28

27

26

25

25

Jan.

26

60

40

35

32

30

35

32

30

28

27

27

26

26

26

26

26

26

26

26

26

25

25

25

25

23

23

23

23

23

23

Feb.

23

25

30

31

53

68

47

38

36

36

34

31

30

29

28

?8

d.1

27

27

27

26

26

26

26

25

25

25

37

31

_

-

Month

October ....................................

November ......................... .........

December ...................................

Calendar year 1947 ......................

January ....................................

February. .............. ^. ..................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

28

27

26

26

25

25

25

26

29

27

26

26

55

57

49

60

61

51

57

46

41

39

66

436

204

121

91

86

77

67

59

Apr.

54

109

240

233

223

171

136

178

296

249

190

151

130

114

101

92

84

77

71

67

71

85

69

61

55

53

52

96

529

549

Secondfoot-days

879

678

1,040

13,502

874

922

2,039

4,586

2,491

1,042

654

472

377

16,054

May

>273

192

156

136

119

107

98

92

86

79

76

71

68

64

61

54

53

53

53

56

55

50

47

46

45

42

41

44

44

73

57

Maximum

130

34

151

587

60

68

436

549

273

51

27

17

15

549

June

51

46

45

44

44

41

40

39

39

39

38

36

35

34

34

34

33

32

32

30

29

26

27

28

28

28

28

28

27

27

Minimum

11

19

20

9.3

23

23

25

52

41

26

17

13

11

11

July

27

27

26

26

25

25

25

23

23

20

22

21

21

20

20

20

20

19

20

19

20

19

19

20

19

18

18

19

18

18

17

Aug.

17

16

17

16

16

17

17

17

16

16

16

16

16

16

15

15

15

15

15

15

15

14

14

14

14

14

14

14

14

13

13

Mean

28.4

22.6

33.5

37.0

28.2

31.8

65.8

153

80.4

34.7

21.1

15.2

12.6

43.9

Sept.

13

12

12

12

13

13

15

13

13

12

13

12

11

11

12

11

12

12

13

13

14

13

13

12

12

14

12

13

13

13

-

Runoff in 

acre-feet

1,740

1,340

2,060

26,760

1,730

1,830

4,040

9,100

4,940

2,070

1,300

936

748

31,830

Peak discharge ("base, 1,400 sec.-ft.).- Ho peak above base. 

Note.- No gage-height record Dec. 24 to Jan. 18, Aug. 18-23; discharge Interpolated, or 

on basis of recorded range in stage and weather records.
STEVENS CREEK BASIN

Stevens Creek near Cupertino, Calif.

Location.- Water-stage recorder and concrete control, lat. 37 0 18'20", long. 122°04'25", in 

SWlj sec. 22, T. 7 S., R. 2 W., at county highway bridge, 0.2 'mile downstream from 

Stevens Creek Dam and 2.5 miles southwest of Cupertino. Altitude of gage, about 385 

feet (from topographic map).

Drainage area.- 18.1 square miles.

Hecoras available.- January 1930 to September 1948.

Average discharge.- 18 years, 12.0 second-feet.

Extremes.- Maximum discharge during year, 42 second-feet Apr. 4 (gage height, 2.07 feet); 

no flow Mar. 4, June 8-26, Sept. 27, 28.

1930-48: Maximum discharge, 2,390 second-feet Feb. 28, 1940 (gage height, 7.05 

feet), from rating curve extended above 350 second-feet; no flow at times during 1930- 

34, 1936, 1939, 1944, 1947, 1948.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Flow regulated by Stevens Creek Reservoir beginning in 1936 (usable capacity 4,000 acrefeet); water released during summer.

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1 to Nov. 18)

Oct. 1 to Dec. 19 Dec. 20 to Sept. 30

1.1 0 1.1 0 1.6 9.6 

1.2 .4 1.2 .5 1.7 15 

1.3 1.1 1.3 1.3 1.8 21 

1.4 2.8 1.4 2.9 1.9 28 

1.5 5.6 2.0 36

Discharge, in second-feet, water year October 1947 to September, 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.1 

.1 

.2

.1 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1

.2 

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.2 

.2 

.2

Nov.

0.2 

.2 

.3 

.3 

.3

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.6

.6 

.5 

.9

1.2 

2.4

2.8 

1.1 

1.1 

1.2 

1.2

1.2 

1.2 

1.2 

1.1 

1.0

Dec.

.1

.1 

.1 

.1

1.1 

1.0 

1.0 

1.0 

.9

.9 

.9 

1.0 

1.0 

1.0

1.0 

1.2 

1.6 

1.2 

5.5

5.3 

2.9 

2.2 

1.9 

1.8

1.6 

1.6 

1.5 

1.5 

1.5 

1.4

Jan.

1.4

1.6 

1.8 

1.8

1.8 

1.8 

2.2 

2.2 

1.9

1.8 

1.6 

1.5 

1.5

1.5

1.5 

1.5 

1.4 

1.4 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.2 

1.2 

1.2 

1.3 

1.4 

1.4

Feb.

1.6 

2.1 

2.9 

4.4

5.0 

3.8 

2.9 

2.6 

3.8

3.6 

2.6 

2.1 

2.1 

1.9

Ir8

1.8 

1.8 

1.6 

1.6

1.5 

1.5 

1.5 

1.5

1.5

1.4 

1.4 

1.9 

1.9

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1947 ......................

ember. .................................

ter year 1947-48 ......................

Mar.

1.6 

1.5 

1.2 

0 

.4

3.4 

1.3 

1.4 

1.6 

1.6

1.5 

1.5 

3.6 

5.9 

4.4

4.7 

7.0 

5.3 

4.1 

3.3

2.9 

2.9 

3.6 

28 

29

24 

20 

19 

8.7 

5.6 

4.7

Apr.

4.1 

3.8 

6.6 

23 

21

20 

15 

13 

16

13

11 

11 

11 

12 

11

11 

11 

11 

11 

11

11 

10 

9.6 

9.2 

8.7

5.0 

3.8 

4.1 

10 

a9

Secondfoot-days

4.4 

24.2 

49.0

1,128.8

47.1 

65.5 

203.7 

326.9 

266.0 

18.3 

16.3 

8.7 

4.0

1,034.1

May

a 

a

a

a 

a 

a

a! 

a 

alO 

alO 

alO

all 

all 

all 

all 

all

alO 

alO 

alO 

alO 

9.6

11 

11 

12 

1.0 

3.1 

3.3

Maximum

0.2- 

2.8 

5.5

16

2.2 

5.0 

29 

ZZ 

12 

4.3 

.8 

.4 

.2

29

June

3.6 

4.3 

2.9 

2.1 

1.2

.7 

.3 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.5 

1.0 

.9 

.8

Minimum

0.1 

.2 

.9

0

1.2

1.4 

0 

3.8 

1.0 

0 

.2 

.2 

0

0

July

0.8 

.7 

.8 

.8 

.8

.8

.8 

.8 

.8 

.7

.6 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.4 

.4

.4 

.4 

.3 

.3 

.3

.3 

.3 

.2 

.3 

.3 

.3

Aug.

0.3 

.4- 

.4 

.4 

.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

Sept.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.1 

.1

.1 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

0 

0

.1 

.1

 Runoff in Mean acre-feet

0.14 8.7 

.81 48 

1.58 97

3.09 2,240

1.52 93 

2.26 130 

6.57 404 

10.9 648 

8.58 528 

.61 36 

.53 32 

.28 17 

.13 7.9

2.83 2,050

a No gage-height record; discharge computed 

by Santa Clara Valley District.

basis of recorded range in stage and data furnished
GOADALOPE RIVER BASIN 

Alamitos Creek near Edenvale, Calif.

185

Location.- Water-stage recorder, lat. 37°14'20", long. 121°52'15", in SWij sec. 16, T. 8 

t> . , K . 1 E., 0.4 mile upstream from confluence with Los Capitancillos Creek and 4 miles 

southwest of Edenvale. Altitude of gage, about 200 feet (from topographic map).

Drainage area.- 35.0 square miles.

Records available.- January 1930 to September 1948.

Average discharge.- 18 years, 18.2 second-feet.

Extremes:- Maximum discharge during year, 45 second-feet Apr. 6 (gage height, 3.68 feet); 

no flow Oct. 1 to Apr. 3, June 9 to Sept. 30.

1930-48: Maximum discharge, 2,670 second-feet Dec. 27, 1931 (gage height, 6.60 

feet), from rating curve extended above 1,800 second-feet; no flow for several months 

each year except 1942, 1943.

Remarks - Records good. Flow regulated by Calero Reservoir beginning in 1935 (capacity, 

a.uuu acre-feet) and Almaden Reservoir (capacity, 2,500-acre-feet); water released 

during summer. Small diversions above station.

Discharge, in second-feet, water year October 1947 ^o September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

2R

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

December ...................................

Calendar year 1947 ......................

March. .....................................

May........................................

July. ......................................

September. .................................

Water year 1947-48 ......................

Mar.

*

Apr.

0

0

0

6.8

21

45

37

22

35

23

18

19

19

22

24

13

16

16

15

15

16

16

16

14

14

11

7.3

6.7

9.1

9.9

-

Secondfoot-days

0

604.0

0

998.8

May

7.6

7.3

7.0

7.3

8.3

14

15

16

15

15

19

19

19

18

18

19

19

22

23

23

23

21

19

19

20

21

19

18

16

7.0

5.2

Maximum

0

29

0

45

June

3.4

2.2

2.0

.8

.6

1.5

1.3

.5

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

July Aug.

Mean

0

1.65

0

2.73

Sept.

Runoff in 

acre feet

0

1,200

0

1,980
1Hb GUADALUPE RIVER BASIN

Guadalupe River at San Jose, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°20'00", long. 121°54'00" 

at San Jose, Santa Clara County, 100 feet downstream from Los Gates Creek. Altitude 

of gage, about 80 feet (from topographic map).

Drainage area.- 131 square miles.

Records available.- January 1930 to September 1948.

Average discharge.- 18 years, 36.3 second-feet; affected by storage and spreading since

Extremes.- Maximum discharge during year, 890 second-feet Apr. 29 (gage height, 4.40 feet); 

no now during most of year.

1930-48: Maximum discharge, 8,680 second-feet Feb. 27, 1940 (gage height, 11.88 

feet), from rating curve extended above 3,200 second-feet by logarithmic plotting; no 

flow during parts of each year.

Remarks.- Records fair. Flow regulated by several reservoirs. Small diversions above 

station.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge In second-feet)

1.5

1.55

1.6

1.65

1.7

1.75

1.4 

2.2

1.8

1.85

1.9

1.95

2.0

2.1

3.3 

4.8

2.2

2.3

2.4

2.5 

2.7 

3.0

140

234

Discharge, in second-feet, water year October 1947 to September 1-948

Day

1

2

3

4

5

6

T

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2b

26

2T

28

29

30

31

Oct. Nov. 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

0

0

.4

1.0

Feb.

Month

December. ..................................

Calendar year!947 ......................

March.... ..................................

April.... ..................................

May........................................

September. .................................

Water year 1947-48 ......................

Mar. Apr.

0

0

0 ' 0

35

.1

0

0

89

57

1.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

174

229

-

Secondfoot-days

0

185.5

0

588.4

May

0.7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

0

0

116

0

229

June

Minimum

Cc

c

c

c

c

July Aug.

Mean

0

0

0

.51

0

1..61

Sept.

Runoff in 

acre feet

0

0

0

368

1,160

0

1,160
GDADALDPE RIVER BASIN 187

Los Capltanclllos Creek at Guadalupe, Calif.

Location.- Water-stage recorder and concrete control, lat. 37Q 13'05", long 121°54'35" 

ln SWt sec. 19, T. 8 S., R. IE., 0.5 mile northwest of Guadalupe and 3.5 miles up-' 

stream from confluence with Alamitos Creek. Altitude of gage, about 325 feet (from 

topographic map).

Drainage area.- 12.6 square miles.

Records available.- January 1930 to September 1948.

Average discharge.- 18 years, 10.6 second-feet.

Extremes.- Maximum discharge during year, 205 second-feet Apr. 29 (gage height, 2.10 feet)- 

no now Oct. 1-7, Sept. 3-5, 11-20.

1930-48: Maximum discharge, 1,160 second-feet Dec. 28, 1931 (gage height, 4.05 

feet), from rating curve extended above 840 second-feet; no flow during part of each 

year except 1937, 1938, 1941-45.

Remarks - Records good. Plow regulated by Guadalupe Reservoir beginning in 1936 (capacity, 

375TJD acre-feet); water released during summer. Small diversions above station.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.3

1.4

1.6 

1.8 

2.1

65

93

129

205

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

0

0

0

0

0

.1

.1

2.6

.8

.4

.3

.3

.3

.a

1.3

.9

1.1

1.2

1.1

.9

.7

.6

.5

.5

.6

.7

.9 i.o1.0

Nov.

1.1

1.1

1.1

1.1

1.0

1.0

1.0

.9

.9

.8

.8

.8

.8

.8

1.1

1.2

1.2

1.2

1.3

1.0

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

"

Dec.

0.8

.8

.8

.9

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.3

1.3

1.0

3.6

2.6

2.2

2.2

2.0

2.0

1.8

1.8

1.6

1.6

1.5

1.5

Jan.

1.3

1.3

1.3

1.3

1.3

1.6

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.0

1.8

1.3

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

Feb.

1.1

1.1

1.2

1.3

2.2

2.6

2.8

1.6

1.5

1.5

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.6

1.1

1.1

1.1

1.1

1.6

1.5

-

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

1.2

1.1

1.1

1.1

1.0

1.0

1.0

1.0 1.1 1.1

1.0 1.1

3.0

4.0

2.8

2.8

3.0

2.6

2.6

2.2

2.2

2.2

12.0

55.0

41.0

15.0

9.3

8.1

7.3

6.5

5.5

Apr.

5.2

6.5

19

39

60

33

21

22

39

28

21

23

21

20

15

11

10

10

11

13

14

13

13

13

12

11

9.3

9.3

48

35

-

Secondfoot-day s

18.7

28.3

42.2

882 . 3

46.1

41.6

605.3

333.3 .

201.9

40.4

8.9

2.5

1,569.1

Hay

21

15

12

10

9.3

8.5

7.7

6.9

6.5

6.9

8.5

8.5

8.1

8.1

8.1

7 .7

8.1

8.9

9.3

9.3

8.9

8.5

8.1

7.7

8.7

19

19

17

16

16

16

Maximum

2 . 6

1.3

3.6

21

2.4

2 . 8

55

60

21

23

2.6

.7

.2

60

June

15

18

20

21

22

21

23

20

5.3

1.0

.9

.8

.8

.8

.8

.8

1.8

2.0

2.2

1.8

1.3

1.8

1.8

2.4

3.0

3.0

2.6

2.2

2.4

2.4

-

Minimum

0

.8

.8

0

1.1

1.1

1.0

5.2

6.5

.4

.1

0

0

July

2.2

2.2

2.2

2.6

2.4

2'. 2

2.4

2.2

2.2

2.0

1.6

1.1

1.6

1.3

1.2

1.2

.8

.8

.8

.8

.7

.6

.7

.7

.6

.6

.6

.5

.4

.5

.7

Aug.

0.7

.4

.4

.4

.5

.3

.3'

.3

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.3

.2

.2

.1

.1

.1

.1

.1

.1

Mean

0.60

.94

1.36

2 .42

1.49

1.43

6.45

20.2

e!73

1.30

.29

.08

4.29

Sept.

0.1

.1

0

0

0

,1

.1

.1.1

.1

0

0

0

0

0

0

0

0

0

0

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

-

Runoff in 

acre-feet

37

56

84

1,750

91

83

396

1,200

661

400

80

18

5.0

3,110
188 GUADALUPE RIVER BASIN

Los Gatos Creek below Los Gatos, Calif.

Location.- Water-stage recorder, lat. 37°14', long. 121°58', in Rinconada de Los Gatos 

 Grant, 0.9 mile northeast of railroad station in Los Gatos, Santa Clara County. Altitude of gage, about 310 feet (from topographic map).

Drainage area.- 43.6 square miles.

Records available.- June 1944 to September 1948. January 1930 to May 1944 at site at 

LOS uatos.

Extremes.- Maximum discharge during year, 1,530 second-feet Apr. 29 (gage height,- 6.76 

reetj; no flow during several months.

1930-48: Maximum discharge, 7,110 second-feet Feb. 27, 1940 (gage height, 14.71 

feet, former site and datum), from rating curve extended above 2,300 second-feet by 

logarithmic plotting; no flow during part of most years.

Remarks.- Records good. Plow regulated by several small reservoirs above station. Several 

diversions above station for irrigation. Vasona percolation reservoir is just below 

station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

2425

26

27

28

29

30

31

Oct.

0

0

0

0

0

0

0

0

0

21

6.0

L6

.5

.6

.6

ZZ

11

1.8

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

6.9

5.9

1.2

Nov.

5.2

5.7

.9

;8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

.9

.9

.9

.9

.9

.9

.9

.8

.9

.8

-

Dec.

0.8

.9

.9

.9

.9

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.0 1.1'

24

31

9.8

1.4

.8

.7

.7

.7

.7

.7

.6

.6

Jan.

0.6

1.6

5.9

.8

.8

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.4

.4

.4

.5

.5

.4

.4

.4

.4

Feb.

0.

3.

13

4.

_

-

Month

December ...................................

Calendar year 194? ......................

Janu 

Febr

Apr! 

May

1. .....................................

September. .................................

Water year 1947 -48 ......................

Mar.

0.4

.4

.4

.3

.3

.3

.3

.4

.3

.3

.3

.3

9.3

15

9.0

4.9

1.4

.9

1.2

.9

.8

.8

38

176

82

46

28

24

16

6.1

4.6

Apr.

2.2

22

80

189

138

99

65

92

202

152

113

83

61

44

36

31

29

23

16

13

11

18

9.2

6.4

4.6

3.8

3.6

39

448

271

- .

Secondfoot days

84.3

34.3

90.2

2,092.9

24.1 

31.2

468.9

2,304.8 

626.2

39.7

8.8

0

0

3,712.5

May

122

78

56

44

36

32

27

24

22

19

18

17

11

9.8

8.4

a7.8

a7.2

a6.6

6.C

6.9

7.7

5.0

4.1

3.9

2.9

2.2

1.9

1.9

l.S

21

15

Maximum

22

5.7

31

295

5.9 

13

.176

448 

122

6.6

.8

0

0

448

June

6.6

4.2

2.6

2.6

1.8

1.4

1.2

1.1

1.0

1.0

1.0

.9

.9

.8

.8

.8

.8

.8

.8

.9

1.0

1.9

.5

.5

.5

.6

.6

.6

.7

.8

-

Minimum

0

,

0

2. 

1.

0

0

0

0

July

0.8

.8

.7

.7

.6

.5

.5

.5

.5

.5

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

0

0

0

0

0

0

0

0

Aug.

Mean

2.72

3 1.14

6 2.91

5.73

4 .78 

3 1.08

3 15.1

2 76.8 

9 20.2

E 1.32

.28

O

0

10.1

Sept.

Runoff in 

acre-feet

167

68

179

4,150

48 

62

930

4,570 

1,240

79

17

0

0

7,360

Peak discharge (base, 580 see.-ft.).- Apr. 29 (6 p.m.) 1,530 sec.-ft. 

a No gage-height record; discharge Interpolated.
GUADALUPE RIVER BASIN 189

Campbell Creek at Saratoga, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°15'15", long. 122°02'25", in 

Quinttf Grant, 0.5 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 1948.

Average discharge.- 15 years, 9.43 second-feet.

Extremes.- Maximum discharge during year, 134 second-feet Apr. 29 (gage height, 2.63 feet); 

no now Oct. 1-6, July 8 to Sept. 30.

1933-48: Maximum discharge, 1,650 second-feet Jan. 21, 1943 (gage height, 4.80 

feet), from rating curve extended above 300 second-feet by logarithmic plotting; maximum 

gage height, 5.35 feet Feb. 27, 1940; no flow during part of each water year, except 

possibly 1941, 1943, 1945.

Remarks.- Records good. Diversion and regulation above station by San Jose Water Works.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.2

1.3

1.4

1.5

1.6

4.1

6.1

8.8

12

16

1.9

2.0

2.1

Discharge, in aeoond-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

23

29

30

31

Oct.

0

0

0

0

o

0

.2

.6

.8

4.1

1.2

.7

.2

.4

.4

5.5

2.6

1.4

1.0

.8

.9

.8

.8

.8

.6

.7

.7

.7

1.7

1.5

1.0

Nov.

.5

.4

.2

.2

.1

1.0

.8

1.0

.9

.8

.8

.8

.8

.8

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.8

.8

.8

.8

.8

.8

-

Dec.

0.9

.9

.8

1.0

1.1

.8

.8

.9

.9

.9

.9

.9

.9

.9

.9

.8

.5

.1

.9

.3

.1

.3

.7

.6

.5

.4

.3

.2

.2

.2

.1

Jan.

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.1

.9

.9

1.0

.9

.8

.8

.7

.7

.7

.7

.7

.6

.7

.7

.6

.7

.5

.4

.4

.5

.5

.5

.5

Feb.

0.5

.8

1.3

1.5

2.3

2.7

2.1

1.7

1.6

1.8

1.5

1.2

.8

1.0

1.0

1.0

.7

.8

1.0

.9

.8

.7

.8

.7

.3

.2

.2

1.6

1.0

-

-

Month

October. ...................................

November . ..................................

December . ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April.. ....................................

May. .......................................

Jnne .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947 -48 ......................

Mar.

0.5

.7

.7

.7

.5

.5

.4

.5

.9

.5

.7

1.0

3.9

3.9

3.1

4.7

4.5

3.5

3.6

2.5

2.0

2.0

12

34

17

10

7.0

6.1

4.7

3.9

3.6

Apr.

3.3

5.2

8.4

15

15

15

11

19

26

22

17

13

11

9.1

7.7

7.0

6.3

5.5

4'. 7

4.3

4.1

4.5

3.8

3.6

3.0

2.6

2.6

9.4

51

37

-

Secondfoot-days

30.1

29.1

42.7

696 . 0

24.8

32 5

139 ' R

347 'l

17o!l

24.4

.3

0

0

841.2

May

24

17

14

11

9.4

8.0

7.4

6.8

6.3

5.3

4.7

4.3

3.9

3.5

3.0

2.7

3.0

3.1

3.1

3.3

3.1

2.7

2.3

1.9

1.6

1.5

1.9

1.9

1.8

2.9

4.7

Maximum

5.5

1.5

6.3

33

1.2

2.7

34

51

24

2.6

.2

0

0

51

June

2.6

1.6

1.5

1.9

2.0

1.7

1.3

1.0

1.0

1.3

1.1

.8

.7

.7

.7

.8

.5

.5

.7

.4

.3

.2

.2

.3

.1

.1

.1

.1

.1

.1

-

Minimum

0

.8

0

.4

.2

.4

i!s.1

0

0

0

0

July

0.

.1

.2

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

0 . 97

.97

1.38

1.91

.30

1.12

4.50

11.6

5.49

.03

0

0

2.30

Sept.

Runoff in 

acre feet

60

58

85

1,380

49

64

277

688

337

1 . 6

0

0

1,670
LJU CQVQTE CREEK BASIN

Coyote Creek near Madrone, Calif.

Location.- Water-stage recorder, lat. 37°10'00", long. 121°37'40", in northwest corner of 

San Jose Grant, 0.2 mile upstream from highway bridge at mouth of canyon, 0.2 mile 

downstream from Las Animas 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 1948.

Average discharge?- 42 years, 74.8 second-feet.

Extremes.- Maximum discharge during year, 221 second-feet Apr. 12 (gage height, 4.97 feet); 

minimum daily, 0.2 second-foot at various times during October and September.

1902-12, 1916-48: Maximum discharge, 25,000 second-feet probably on Mar. 7, 1911 

(record furnished by Duryea, Haehl & Oilman); no flow at times.

Remarks.- Records good except those for period of no gage-height-record, which are fair. 

Regulation by Coyote Reservoir beginning in 1936 (capacity, 24,560 acre-feet, revised); water released during summer. No large diversion.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

3

4

5

6

7

n

9

10

15

16

1R

20

21

22

23

24

25

26

27

?a

29

30

31

Oct.

0.3

.2

.2

.2

.2

.2

.3

.5

.8

.5

> a. 6

Nov.

> aO.6

.6

1.1

1.3

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

-

Dec.

0.8

.8

.8

.8

.8

.8"

.8

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.0

1.0

1.0

1.1

1.2

1.0

.9

.9

.9

.9

.9

.9

.9

.8

.8

Jan.

0.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

Feb.

0.7

.7

.7

.9

2.2

3.4

2.0

1.4

1.4

1.4

1.3

1.1

1.0

1.0

.8

.8

.8

.8

.8

.7

'.8

.8

.8

.8

.8

.8

.8

1.3

1.1

-

Month

December. ...................................

Calendar year 1947 ......................

Janu 

Febr 

Hare

Apri

June

July- ...... ............................

Augu 

September. .................................

Water year 1947-48 ......................

Mar.

0.9

.8

.8

.8

.8

.7

.7

.9

1.3

1.0

.9

.8

1.6

2.3

1.7

1.8

1.6

2.0

2.5

2.1

1.9

1.9

2.3

9.0

6.1

29

9.9

35

54

43

9.8

Apr.

9.1

9.8

12

12

13

54

105

78

57

43

38

73

175

52

24

8.2

7.6

7.1

6.8

6.8

6.8

8.4

11

19

20

20

20

22

24

62

-

Secondfoot days

15.2

27.9

3,134.9

24.4 

31.9 

227.9

1,004.6 

865.6

105.4

55.0

27.0 

10.1

2,417.2

May

110

72

38

22

50

103

89

92

58

12

18

29

28

15

14

10

9.3

8.9

8.8

8.4

7.9

7.3

7.1

6.2

6.1

5.9

5.8

5.6

5.4

7.3

5.6

Maximum

0.8

1.2

71

.9 

3.4 

54

175 

110

5.2

2.7

1.3 

.6

175

June

5.2

5.1

4.9

4.5

4.7

4.8

4.3

4.0

3.9

3.9

5.9

4.0

3.8

3.7

3.7

3.5

3.4

3.2

3.2

3.1

2.9

2.7

2.3

2.4

2.2

2.4

2.6

2.1

2.4

2.6

"

Minimum

0.2

.8

.2

.7 

.7 

.7

6.8

5.4 2.:

1.0

.3

.2

.2

July

2.E

.3

.3

.7

.5

.1

.0

.9

.1

.8

.2

.8

.6

.9

.5

.8

.6

.7

.5

.5

.6

.7

.8

.8

.6

.6

.6

.2

.1

.0

.0

Aug.

1.3

1.1

1.1

1.1

1.0

1.1

1.3

1.3

1.3

1.3

1.2

1.2

1.1

1.0

1.0

.9

.9

.9

.8

.7

.7

.8

.7

.6

.5

.5

.3

.4

.3

.3

Mean

0.49

.90

8.59

.79 

1.10 

7.35

33.5

27.9

3.51

1.77

.87 

.34

6.60

Sept.

0.2

.2

.4

.4

.6

.5

.5

.5

.5

.4

.4

.4

.3

.3

.3

.2

.3

.3

.3

.2

.2

.3

.4

.4

"

Runoff in 

acre feet

30

44

55

6,230

48 

63 

452

1,99O 

1,720

209

1O9

54

20

4,790

range in stage. Coyote Creek near Edenvale, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°16'15", long. 121°47'55", 

at east boundary of Santa Teresa Grant, at "The harrows", 1.5 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 1948.

Average discharge.- 32 years, 39.5 second-feet; affected by storage and spreading since 

i93t>.

Extremes- No flow throughout year.

1916-48: Maximum discharge, 10,000 second-feet 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 at 

times during each year.

Remarks.- No flow since Feb. 17, 1947. Water pumped from wells along creek above station 

for irrigation. Flow regulated by Coyote Reservoir beginning in 1936 (capacity, 

24,560 acre-feet, revised) and by detention in percolating reservoir 6 miles above 

station; water released during summer. Figures for the calendar year 1947 are as 

follows: Total second-foot days, 24.6, maximum daily discharge, 12 second-feet; minimum daily, no flow; mean 0.07 second-foot; runoff, 49 acre-feet.
ALAMEDA CREEK BASIN 

Alameda Creek near Niles, Calif.

191

Location.- Water-stage recorder and concrete control, lat. 37°35'15", long. 121°57'35", in 

Arroyo de la Alameda Grant, 0.1 mile upstream from highway bridge and 1.2 miles northeast of Niles, Alameda County. Altitude of gage, about 100 feet (from topographic) 

map).

Drainage area.- 633 square miles.

Records available.- October 1916 to September 1948.

Average discharge.- 31 years (1916-19, 1920-48), 80.2 second-feet.

Extremes.- Maximum discharge during year, 104 second-feet Mar. 24 (gage height, 3.36 feet); 

no flow Oct. 1 to Nov. 4, July 11 to Sept. 30.

1916-48: Maximum discharge, 13,900 second-feet Feb. 10, 1922 (gage height, 12.44 

feet, site and datum then in use), from rating curve extended above 7,600 second-feet; 

no flow at times.

Remarks.- Records good. Flow regulated by Calaveras Reservoir beginning in 1925 (usable 

capacity, 96,900 acre-feet). Diversions for San Francisco water supply and other uses 

above station.

Cooperation.- Gage-height record collected in cooperation with city of San Francisco.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge in second-feet)

1.6 0 2.0 3.4 2.4 14 2.8 32

1.7 .4 2.1 5.4 2.5 18 2.9 40

1.8 1.0 2.2 7.8 2.6 21 3.0 48

1.9 2.0 2.3 11 2.7 26 3.1 59

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

0

0

0

o

.2

.2

.3

.3

.2

.2

.2

.2

.3

.2

.3

.5

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3.2'

.2

.2

.2

-

Dec.

0.3

.3

.3

.2

.3

.3

.3

.3

.3

.2

.3

.3

.3

.3

.3

.3

.6

.ff

.5

.7

.7

.7

.6

.7

.8

1.0

.8

.6

.5

.5

.5

Jan.

0.6

.6

.7

.7

.6

.5

.5

.8

.7

.7

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.4

.3

.3

.3

.4

.4

.4

.4

Feb.

0.3

.4

.4

.5

.8

1.6

1.5

1.2

1.3

1.3

1.0

.8

.8

.7

.7

.6

.5

.5

.5

.5

.5

.6

.6

.5

.5

.5

.4

.6

.5

-

Month

October ....................................

November ...................................

December ...................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. .....................................

April. .....................................

Mav , j ........................................ 

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

0.5

.5

.5

.5

.5

.5

.4

.5

.7

.6

.5

.5

.8

1.3

1.6

1.6

1.8

1.6

2.0

1.7

1.5

1.4

1.6

16

54

18

10

6.1

4.0

2.8

2.3

Apr.

2.0

2.0

2.7

2.6

3.6

13

16

11

9.9

14

17

14

11

9.0

7.5

6.4

5.6

4.8

4.0

3.4

3.2

3.0

2.8

2.6

2.3

2.0

1.9

2.3

2.8

3.3

-

Hay

.2

.8

.7

.4

.1

.8

.7

.7

.7

.6

.6

.5

.5

.4

.1

.1

.0

.2

.4

.6

.6

.5

.5

.6

.3

.4

.4

1.4

1.4

1.9

1.9

June

.8

.5

.4

.4

.3

.1

.0

.8

.8

.8

.7

.7

.7

.6

.6

.6

.6

.5

.5

.5

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

forays Maxinum «**«"

ooo

6.9 .5 0

14.4 1.0 .2

865.3 82 0

15.0 .8 3

20.6 1.6 3

136.3 54 4

185.7 17 19

52.0 3.2 10

20.6 1.8 2

000

1.3 .2 0

000

452.8 54 0

July

0.2

.1

.1

.2

.2

.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

Aug. Sept.

 Runoff in Mean acre-feet

o o

.23 14

.46 29

.48 30

.71 41

4.40 270

6.19 368

1.68 103

.69 41

.04 2.6

0 0

0 0

1.24. 899
SAN LORENZO CREEK BASIN

San Lorenzo Creek at Hayward, Calif.

Location.- Water-stage recorder, lat. 37°41', long. 122°04 I , at highway bridge on B Street, 

in San Lorenzo Grant, just outside city limits of Hayward, Alameda County, 0.5 mile 

downstream from Palomares Creek. Datum of gage is 133.16 feet above mean sea level, 

datum of 1929.

Drainage area.- 38.0 square miles.

Records available.- January to September, 1940, October 1946 to September 1948.

Extremes.- Maximum discharge during year, 98 second-feet Mar. -23 (gage height, 3.48 feet); 

no flow during several months.

1940, 1946-48: Maximum discharge observed, 3,440 second-feet Feb. 27, 1940 (gage 

height, 13.3 feet, (datum then in use), by slope-area method; no flow during part of 

each year.

Flood of Jan. 24, 1942, reached a stage of 15.7 feet, from floodmarks.

Remarks.- Records good. A few very small diversions above station.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

2.0

2.1

2.2 1.6

2.3 2.4- 

2.5

2.6

2.8

2.9

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

o

0

0

0

0

.1

0

.8

.1

0

0

0

0

0

.4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

0.2

.4

.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.7

1.0

.5

.3

.3

.2

.2

.2

.2

.2

.2

.2'

.2

.3

.3

.3

-

Dec.

0.3

.3

.3

.3

.6

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.9

.7

.3

.6

.6

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

Jan.

0.3

.4

1.1

.7

.5

.5

2.0

5.4

1.4

.8

 6

.6

.5

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.3

.3

.3

Feb.

0.3

.3

.3

1.1

3.2

1.6

.8

.6

1.0

.8

.6

.5

.4

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.4

.3

.3

.3

2.1

1.0

-

Month

October ....................................

November . ..................................

December. ............................... .^. .

Calendar year 194? ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

MAV nay. .......................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1947-48 ......................

Mar.

0.6

.5

.5

.4

.4

.4

.4

.8

1.2

.7

.6

.6

7.2

8.2

5.0

3.2

3.2

1.8

5.4

2.3

1.4

1.4

17

32

10

5.0

3.8

4.7

4.4

2.9

2.3

Apr.

2.1

2.6

4.1

3.8

5.7

12

6.0

5.0

6.0

13

12

7.8

6.3

5.7

5.4

5.4

4.7

4.1

3.8

3.5

3.2

3.5

3.2

2.6

2.3

2.3

2.3

3.2

4.4

6.3

Secondfoot-days

1.4

7.5

11.4

452.0

20.2

21.1

128.3

152.3

51.2

16.8

.1

0

0

410.3

May

3.8

2.6

1.8

2.1

2.1

1.8

1.8

1.6

1.4

1.4

1.2

1.2

1.2

1.1

1.1

1.0

.8

1.0

1.4

3.5

2.9

2.1

1.6

1.6

1.4

1.2

1.1

1.0

1.0

1.8

1.6

Maximum

0.8

1.0

.9

62

5.4

3.2

32

13

3.8

1.2

.1

0

0

32

June

1.2

1.2

1.2

1.2

1.2

1.1

.8

.8

.8

.7

.6

.6

.5

.5

.5

.5

.5

.4

.4

.3

.3

.2

.1

.1

.1

.2

.2

.2

.2

.2

Minimum

0

.1

.3

0

.2

.3

.4

2.1

.8

.1

0

0

0

0

July

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

Aug.

Mean

0.05

.25

.37

1.24

.65

.73

4.14

5.08

1.65

.56

.003

0

0

1.12

Sept.

Runoff in 

acre feet

2.8

15

23

897

40

42

254

302

102

33' .2

0

0

814
KERN RIVER BASIN

Kern River near Kernville Calif.

location.- Water-stage recorder, lat. 35°56', long. 118°29' , in NE^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 1948.

Average discharge .- 36 years, 716 second-feet, combined flow of Kern River near Kernville 

ana Kern Kiver No. 3 canal,

Extremes.- Maximum discharge during year, 1,660 second-feet May 17 (gage height, 7.98 

I'eet ) ; minimum , 0.8 second-foot Dec. 11, Feb. 12.

1912-48: Maximum discharge, 9,690 second-feet (unregulated) Jan. 17, 1916 (gage 

height, 8.8 feet, datum then in use), from rating curve extended above 4,100 secondfeet; no flow at times during period July 31, 1924, to Feb. 7, 1925.

Extremes do not include flow in Kern River No. 3 canal.

Remarks . - Records good except those below 100 second-feet and for period of no gage- 

.height record, which are fair. Kern River No. 3 Canal (see p. 197) diverts 1 mile 

above station.

Cooperation.- Water-stage recorder graph and 14 discharge measurements, furnished by

Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year. October 1947 to September 1948

lay

1

3

4

5

6

7

a

9

10

11lllS

14

15

16

17

18

19

m

21

22

23

24

25

26

27

28

29

30

31

Oct.

.1.9

1.7

1.7

1.6

1.7

1.7

1.7

1.9

1.9

1.9

1.9

1.7

1.7

1.6

1.6

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.5

1.5

1.5

1.6

1.5

Nov.

1.5

1.5

1.6

1.6

1.6

1.5

1.6

1.9

1.9

1.9

1.7

1.7

1.9

2.0

2.0

2.0

2.0

2.1

2.0

2.1

2.1

1.7

1.7

1.7

1.6

1.7

1.7

1.7

1.7

-

Dec.

1.7

1.7

2.4

2.0

1.9

1.9

2.0

2.0

1.9

1.6

1.6

1.7

2.3

2.3

2.1

2.1

2.0

2.0

2.3

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.9

1.7

1.6

1.5

Jan.

1.9

2.0

1.9

1.9

1.7

2.0

2.0

2.0

2.0

2.0

1.9

1.7

1.6

1.7

1.9

1.9

1.9

1.9

1.9

1.9

2.0

2.1

2.1

2.0

2.0

2.0

1.9

1.7

1.9

1.9

Feb.

1.9

1,7

1.5

2.3

2.1

2.1

2.1

2.4

2.5

1.9

1.6

1.6

2.3

2.3

2.3

2.4

2.4

2.5

2.4

2.1

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

-

-

Month

~«cember ...................................

Calendar year 1947 ......................

"nril. .....................................

Jnly ....................................

''eptember. .................................

Water year 1947-48 ......................

liar.

2.1

2.0

2.0

1.9

1.9

1.9

1.9

1.9

1.7

1.7

1.9

2.C

2.4

2.3

2.5

2.5

2.4

2.5

2.4

2.4

2.4

2.4

2.9

2.5

2.5

2.5

2.3

2.3

2.3

2.1

Apr.

2.0

2.5

1.9

1.9

2.0

1.9

1.9

1.7

a550

a!50

a7

2.3

1.9

1.9

1.7

43

115

113

108

135

109

68

11

54

144

192

182

113

39

-

Secondfoot-days

59.9

44,875.9

59 2

57.8

44,197.9

May

5.6

51

172

362

636

841

672

454

371

384

447

627

815

1,060

1,430

1,470

1,290

825

546

400

377

583

951

1,100

1,290

1,410

1,250

940

830

672

Maximum

2.4

1,660

2.1

1,470

June

546

406

567

542

440

447

685

1,000

698

636

813

896

795

721

712

667

614

530

487

588

680

622

571

600

622

558

518

499

499

Minimum

1.5

.7

1.6

1.5

July

328

124

69

21

4.7

3.1

2.9

2.8

2.8

2.7

2.4

2.1

2.1

2.1

2.0

2.1

2.0

2.0

1.9

1.9

1.9

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

Aug.

1.6

1.6

1.6

1.6

1.6

1.6

1.6

2.0

2.1

2.0

2.1

2.1

2.0

2.0

2.0

2.0

2.1

2.1

2.3

2.3

2.3

2.3

2.3

2.3

2.1

2.1

2.1

2.1

2.0

2.0

Mean

1.93

123

1.93

121

Sept.

2.0

2.0

2.0

2.1

2.1

2.0

2.0

2.0

1.9

1.6

1.6

1.9

1.7

1.9

1.7

1.9

1.9

1.9

1.9

2.0

2.0

2.0

2.1

2.0

2.0

1.9

1.9

1.9

1.9

Runoff in 

acre-feet

119

89,010

115

87,660

a No gage-height record; dis 

upstream.

^arge computed on basis of record of spill over diversion dam 1 mile
194 KERN RIVER BASIN

Combined flow, in second-feet, of Kern River and Kern River No. 3 Canal 

water year October 1947 to September 1948

ear Kernvllle, Calif.

Day

1

2

3

4

5

6

7

8

9

10

11

If.

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

142

142

142

140

139

139

142

143

146

159

212

206

198

202

210

214

226

231

230

233

233

228

218

210

203

202

202

202

204

219

214

Nov.

214

225

222

218

210

196

188

194

194

183

183

186

170

174

183

187

185

183

179

170

161

169

162

161

177

182

182

181

182

182

Dec.

180

181

171

178

178

178

177

178

168

162

164

179

182

181

179

178

178

178

178

180

182

178

177

178

179

178

178

177

177

154

136

Jan.

171

181

182

180

181

178

178

185

186

180

178

174

170

166

164

166

163

162

159

156

160

166

170

169

166

167

150

138

154

158

159

Feb.

158

162

132

130

167

159

153

155

182

192

158

147

167

186

178

178

185

190

194

188

187

198

194

179

178

182

182

182

172

-

Month

December ...................................

Calendar year 1947 ......................

March.. ....................................

April ......................................

May. .......................................

September. .................................

Water year 1947 48 ......................

liar.

177

177

177

172

172

176

174

178

186

182

177

177

180

205

206

210

210

204

220

204

202

240

264

279

248

256

258

271

277

279

278

-Apr.

310

336

382

352

308

328*

300

310

317

1,160

771

563

497

476

537

606

661

733

730

725

753

727

686

620

667

745

810

793

722

651

-

Secondfoot-days

5,931

5,422

166,511

3,586

151,973

May

606

622

661

777

967

1,240

1,450

1,280

1,060

978

991

1,050

1,230

1,420

1,660

2,030

2,070

1,890

1,430

1,150

1,000

977

1,180

1,550

1,700

1,890

2,010

1,850

1,540

1,430

1,280

Maximum

233

182

2,250

198

128

2,070

June

1,150

1,130

1,000

1,160

1,150

1,050

1,050

1,290

1,610

1,310

1,240

1,420

1,500

1,400

1,320

1,320

1,270

1,220

1,140

1,100

1,210

1,300

1,240

1,190

1,220

1,240

1,170

1,130

1,110

1,110

-

Minimum

13S

161

136

136

138

130

172

300

114

114

July

936

814

730

675

615

547

508

488

483

501

526

518

498

468

447

448

446

428

411

390

369

360

346

326

307

285

268

258

250

242

239

Aug.

238

233

229

225

218

211

203

197

192

186

180

175

170 

166

160

156

153

150

147

146

141

138

138

138

135

131

128

126

126

123

122

Mean

191

186

175

456

168

173

213

586

1,322

1,225

456

167

120

415

Sept.

12?

121

121

121

122

121

120

119

118

118

118

117

116

115

114

114

115

118

119

119

117

117

118

119

121

125

128

126

124

123

-

Runoff in 

acre-feet

11,760

11,070

10,750

330,300

10,350

9,950

13,120

34,860

81,260

72,890

28,020

10,280

7,110

301,400
KERN RIVER BASIN 195

Kern River below Isabella dam site, Calif.

Location.- Water-stage recorder, lat. 35°39', long. 118°29', in sec. 19, T. 26 S., R. 

33 £., immediately downstream from dam site, 1.2 miles southwest of Isabella and 1.3 

miles downstream from South Fork. Altitude of gage, about 2,400 feet (from topographic 

map).

Drainage area.- 2,080 square miles.

Records available.- April 1945 to September 1948.

Extremes.- Maximum discharge during year, 1,790 second-feet Apr. 10 (gage height, 7.77feet); 

minimum, 7.8 second-feet Aug. 12.

1945-48: Maximum discharge, 3,420 second-feet May 4, 1945 (gage height, 8.78 feet); 

minimum, 7.8 second-feet Aug. 29, 1947, Aug. 12, 1948.

Remarks.- Records good. Borel Canal (see p.198) diverts 5 miles above station; many 

diversions above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

15

15

15

14

14

14

14

12

12

12

12

15

14

13

13

13

13

14

15

15

14

15

15

15

15

15

15

15

15

15

15

Nov.

15

16

16

16

16

16

16

16

16

16

16

17

17

17

17

17

17

17

17

17

17

17

17

17

17

18

18

18

18

18

-

Dec.

18

18

18

18

19

18

18

18

18

18

18

18

18

18

18

18

19

20

20

20

22

24

27

29

30

32

34

36

35

33

32

Jan.

27

27

27

27

27

26

24

23

23

23

24

24

24

22

22

22

22

22

20

20

19

17

17

18

19

16

16

20

20

20

20

Feb.

21

21

20

20

22

22

22

21

22

24

22

22

22

23

24

24

27

27

26

25

24

24

26

24

24

23

2424'

23

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1947 ......................

January. ...................................

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

22

23

24

24

24

26

25

24

26

24

24

24

27

27

27

27

33

31

32

32

32

36

38

44

60

66

66

58

60

62

58

Apr.

56

49

56

70

72

73

62

44

40

761

716

354

158

91

120

160

229

363

417

363

359

328

274

198

160

264

379

363

305

226

Secondfoot-days

438

503

702

69,055.3

678

673

1,106

7,110

25,012

20, 620

1, 718

372. 7

A-Z.K

59,367.7

Hay

165

146

163

238

404

647

918

866

630

515

490

535

652

880

1,070

1,440

1,570

1,440

1,050

740

550

466

565

886

1,120

1,270

1,430

1,350

1,080

918

818

Maximum

15

18

36

1,710

27

27

66

761

1,570

984

434 "14

17

1,570

June

642

614

515

555

636

550

490

664

984

866

716

818

951

899

812

782

764

692

642

560

625

734

722

647

652

692

647

592

576

581

Minimum

12

15

18

8.8

16

20

22

40

146

490

10

9.3

13

9.3

July

434

335

229

175

120

49

28

21

21

21

17

17

15

15

14

13

13

13

13

12

16

16

16

15

12

14

12

11

10

10

11

Aug.

14

13

14

11

12

11

10

10

9.9

10

9.9

9.3

9.6

10

10

11

10

13

13

13

13

13

13

13

13

14

14

14

14

14

14

Mean

14.1

16.8

22.6

189

21. 9

23. 2

35.' 7

237

807

687

55.4

12.0

14.5

162

Sept.

13

13

13

13

13

14

14

14

14

13

13

13

14

13

13

14

15

15

15

16

15

15

16

16

16

17

17

16

16

16

Runoff in 

acre-feet

869

998

1,390

137,000

1,340

1 33O

2^190

14,100

49,610

40,900

3,410

739

863

117,700
196 KERN RIVER BASIN

Kern River near Bakersfield, Calif.

Location.- Water-stage recorder and wooden control, lat. 35°25'54", long. 118 0 56'43", in 

SWf~sec. 2, T. 29 S., R. 28 E., at mouth of lower canyon, 5 miles northeast of Bakers - 

field. Altitude of gage, about 470 feet (from topographic map).

Drainage area.- 2,420 square miles.

Records available.- October 1893 to September 1948.

Average discharge.- 53 years (1893-1906, 1908-1948), 980 second-feet.

Extremes.- Maximum discharge during year, 2,206 second-feet May 28 (gage height, 2.79 

feet); minimum, 46 second-feet Sept. 20.

1896-1948: Maximum discharge, 21,701 second-feet Mar. 9, 1943 (gage height, 10.87 

feet); minimum, that of Sept. 20, 1948.

Remarks.- Pour power plants and many diversions above station for irrigation.

Cooperation.- Complete record, except runoff in acre-feet and annual figures, furnished 

by Kern County Land Co.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

146 

145 

152 

157 

159

151 

145 

143 

154 

153

166 

202 

214 

212 

218

220 

222 

232 

257 

260

257 

254 

252 

245 

239

233 

229 

222 

229 

241 

247

Nov.

253 

267 

282 

282 

264

249 

244 

233 

224 

242

235 

225 

224 

212 

200

218 

227 

225 

219 

213

201 

193 

211 

214 

197

200 

204 

212 

217 

215

Dec.

218 

217 

216 

218 

222

229 

229 

222 

218

218

197 

208 

214 

220 

224

231 

225 

224 

229 

228

236 

236 

237 

236 

242

244 

247 

240 

242 

234 

228

Jan.

207 

218 

236 

240 

240

239 

236 

235 

229 

237

240 

242 

234 

225 

218

215 

212 

209 

206 

207

^205 

204 

212 

218 

214

196 

201 

224 

195 

198 

207

Feb.

211 

208 

212 

201 

187

227 

236 

223 

219 

246

270 

235 

212 

225 

249

242 

240 

252 

250 

245

243 

238 

251 

256 

232

221 

213 

218 

227

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

1................................. ......

ter year 1947 48 .......................

Mar.

217 

214 

211 

211 

205

208 

214 

206 

207 

215

205 

202 

214 

225 

244

264 

270 

280 

266 

277

265 

251 

285 

212 

350

362 

362 

351 

364 

363 

364

Apr.

348 

355 

393 

461 

489

440 

411 

406 

373 

387

1,314 

1,146 

899 

758 

677

693 

748 

843 

982 

1,013

956 

942 

887 

847 

785

766 

895 

996 

1,021 

940

Secondfoot-days

6,356 

6,802 

7,029

205,044

6,799 

6,689 

8,184 

22,171 

43,413 

39,610 

15,796 

5,005 

3,478

171,332

May

851 

775 

753 

775 

866

1,064 

1,341 

1,522 

1,370 

1,198

1,121 

1,095 

1,157 

1,302 

1,536

1,794 

2,061 

2,029 

1,863 

1,520

1,259 

1,112 

1,061 

1,243 

1,660

1,825 

1,979 

2,072 

1,928 

1,700 

1,581

Maximum

261 

288 

253

2,584

245 

272 

369 

1,823 

2,206 

1,797 

1,200 

250 

134

2,206

June

1,463. 

1,333 

1,252 

1,110 

1,240

1,254 

1,145 

1,106 

1,358 

1,681

1,435 

1,313 

1,506 

1,567 

1,480

1,397 

1,394 

1,342 

1,322 

1,233

1,189 

1,283 

1,372 

1,342 

1,273

1,285 

1,306 

1,274 

1,191 

1,164

July

1,163 

1,002 

886 

806 

753

717 

640 

574 

547 

535

532 

541 

532 

513 

488

458 

447 

453 

447 

421

392 

367 

357 

343 

319

301 

273 

259 

248 

243 

239

Minimum

140 

188 

191

135

187 

177 

193 

336 

731 

1,071 

236 

116 

46

46

Aug.

234 

232 

219 

214 

206

200 

198 

189 

186 

173

165 

158 

151 

150 

145

141 

138 

137 

138 

142

144 

142 

143 

144 

141

139 

138 

134 

126 

121 

117

Mean

205 

227 

227

562

219 

231 

264 

739 

1,400 

1,320 

510 

161 

116

468

Sept.

120 

117 

115 

114 

113

114 

118 

116 

113 

112

111 

111 

106 

100 

103

103 

108 

110 

74 

92

118 

130 

152 

130 

131

129 

131 

132 

129 

126

Runoff in 

acre-feet

12,610 

13,490 

13,940

406,700

13,490 

13,270 

16,230 

43,980 

86,110 

78,570 

31,330 

9,930 

6,900

339,800

Note.- The figures of maximum and minimum discharge as show 

values.

for each month are instantaneous
KERN RIVER BASIN 197

Kern River No. 3 Canal near Kernville, Calif.

Location.- Water-stage recorder, lat. 35°54' , long. 118°28', in NE^ sec. 25, T. 23 S., R. 

32 K., 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 1948. 

Average discharge.- 27 years, 368 second-feet.

Extremes.- Maximum daily discharge during year, 621 second-feet Apr. 11, June 21; minimum 

daily, 112 second-feet Sept. 15, 16.

1921-48: Maximum daily discharge, 689 second-feet May 28, 1938; no flow at times.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. 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 13 discharge measurements, furnished by Southern California Edison Co., obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

140

140

140

138

137

137

140

141

144

157

210

204

196

200

208

212

224

229

228

231

231

226

216

208

201

200

200

200

202

217

213

Nov.

212

223

220

216

208

194

187

192

192

181

181

184

168

172

181

185

183

181

177

168

159

167

160

159

175

180

180

179

180

180

-

Dec.

178

179

169

176

176

176

175

176

166

160

162

177

180

179

177

176

176

176

176

178

180

176

175

176

177

176

176

175

175

152

135

Jan.

169

179

180

178

179

176

176

183

184

178

176

172

168

164

162

164

161

160

157

154

158

164

168

167

164

165

148

136

152

156

157

Feb.

156

160

130

129

165

157

151

153

180

190

156

145

165

184

176

176

183

188

192

186

185

196

192

177

176

180

180

a!80

a!80

_

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July... ....................................

August .....................................

September. .................................

Bater year 1947-48 ......................

Mar.

a!75

a!75

a!75

al70

a!70

174

172

176

184

alSO

a!75

a!75

178

203

204

207

208

202

218

202

200

238

262

276

245

254

255

269

275

277

276

Apr.

308

334

a38O

a350

306

326

298

308

315

608

621

556

495

474

535

604

618

618

617

a617

a618

618

618

609

613

601

618

611

609

612

-

Secondfoot-days

5,870

5,524

5,361

1 ?1 593

5,155

4,958

6,550

15,415

18,713

18,247

13,318

5 119

3^526

107,756

May

a600

a610

a610

a605

3605

604

606

607

607

607

607

605

602

603

602

601

602

604

604

602

602

600

598

602

604

599

600

604

604

603

604

Maximum

231

223

180

605

184

196

277

621

610

621

6 O8

236

126

621

June

600

600

597

597

605

612

607

6O7

607

609

608

606

606

607

604

604

606

607

607

612

621

616

614

615

615

614

611

611

612

610

-

Minimum

137

15 £

13 C

13 C

136

129

17C

298

598

597

237

12C

112

112

July

608

607

606

606

594

542

505

435

480

498

523

516

496

466

445

446

444

426

409

388

367

358

344

324

305

283

266

256

248

240

237

Aug.

236

231

227

223

216

209

201

195

190

184

178

173

168

164

158

154

151

148

145

144

139

136

136

136

133

129

126

124

124

121

120

Mean

189

184

173

333

166

171

211

514

6O4

608

430

165

118

294

Sept.

120

119

119

119

120

119

118

117

116

116

116

115

114

113

112

112

113

116

117

117

115

115

116

117

119

123

126

124

122

121

-

Runoff in 

acre-feet

11,640

10,930

10,630

241,200

10,220

9,830

12,990

30,580

37,120

36,190

26 , 420

10,150

6,990

213,700

a No gage-height record 

889419 0-50-14

; discharge conputed on basis of flow through eters at powerhouse.
198 KERN RIVER BASIN

Borel Canal at Tllley Creek, Calif.

Location.- Water-stage recorder, lat. 35°42', long. 118°27 I , in NW£ sec. 4, T. 26 S., R. 

33 E., at point where canal crosses Tilley Creek, 0.8 mile south of Kernville. Altitude of gapp, about 2,570 feet (from topographic mao) .

Records available.- January 1910 to September 1914, October 1925 to September 1948. 

Average discharge.- 23 years (1925-48), 361 second-feet.

Extremes.- Maximum daily discharge during year, 589 second-feet May 21-24, July 1-4; minimum daily, 101 second-feet Sept. 15, 16.

1925-48: Maximum daily discharge, 605 second-feet June 3-5, 1927, May 22, 1936; no 

flow at times.

Remarks.- Records excellent. Canal diverts from Kern River, 0.5 mile below Kernville, to 

supply Borel power plant of Southern California Edison Co., 10 miles below station, at 

which point water is returned to Kern River.

Cooperation.- Water-stage recorder graph and 12 discharge measurements, furnished by Southern ualirornia Edison Co., obtained in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

6

11

16

21

26

Oct.

132

133

133

130

130

129

131

139

138

147

198

212

199

207

209

218

224

240

233

234

235

230

219

214

204

206

206

203

208

224

Nov.

218

238

229

231

224

210

194

201

208

198

186

194

179

173

193

195

195

191

191

180

166

174

174

166

182

189 .

197

190

189

194

-

Dec.

194

192

188

186

198

190

190

191

189

168

170

186

194

196

195

190

19O

190

188

191

199

194

189

189

190

190

189

189

190

171

142

Jan.

168

196

201

193

194

19O

190

199

198

194

194.

185

178

175

171

174

172

170

169

161

166

174

179

179

176

174

162

142

158

166

168

Feb.

166

170

148

132

174

174

162

158

186

220

171

ISO

170

199

188

186

194

202

208

202

199

209

215

193

184

187

190

193

184

-

-

Month

December. ..................................

Calendar year 1947 ......................

March. .....................................

April ......................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

182

185

182

173

174

176

174

172

186

178

174

174

175

210

224

225

235

223

237

225

212

241

288

296

286

?83

282

296

501

310

298

Apr.

323

354

420

408

343

357

348

336

350

505

543

552

559

544

563

572

570

568

568

574

581

582

585

586

587

586

583

586

585

585

-

Secondfoot-days

5,808

124.034

3,296

107,882

May

585

586

585

585

585

586

586

586

585

585

586

586

586

586

586

586

587

587

586

587

589

589

589

589

587

587

587

587

586

585

583

Maximum

199

575

DO f

foT

f?

124

589

June

585

586

586

586

587

587

587

586

586

585

585

585

583

583

585

585

587

587

587

586

586

586

587

587

587

586

585

587

587

587

-

Minimum

14<

12S

101

101

July

589

589

589

589

587

569

528

508

499

513

540

533

509

485

449

445

447

435

414

393

366

356

348

326

308

285

267

254

246

239

232

Aug.

230

225

218

211

204

198

190

185

178

170

166

162

158

151

146

144

140

140

138

134

130

130

132

132

129

126

120

US

114

115

114

Mean

18.7

340

295

Sept.

112

108

107

111

110

112

112

111

108

107

109

105

104

104

101

101

104

104

109

110

107

106

109

113

112

121

124

121

118

116

Runoff in 

acre-feet

11,520

246,000

214,000
KERN RIVER BASIN 199

South Fork Kern River near Onyx, Calif.

Location - Water-stage recorder and broad.crested weir, lat. 35°44', long. 118°10', in 

 SWir sec. 24, T. 25 S., R. 35 E., three-quarters of a mile north of State Highway 178,

1.4 miles upstream from Canebrake Creek, and 5 miles northeast of Onyx. Altitude of

gage, about 2,900 feet (from topographic map). 

Drainage area.- 531 square miles. 

Records available.- September 1911 to August 1914, January 1919 to September 1942, August

iy4Y to September 1948.

Average discharge.- 22 years (1911-13, 1919-85, 1929-48, 1947-48), 108 second-feet. 

Extremes'.- Maximum discharge during year, 290 second-fieet Apr. 18 (gage height, 3.M

feet) ; minimum, 1.5 second-feet Sept. 8, 9, 10.

1911-14, 1919-42, 1948: 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. 85, 1914,.former site, same datum; no flow for several days in

July and August 1929 and September 1934. 

Remarks - Records excellent. Lowell and Thomas irrigation ditches divert above station;

combined capacity, about 5 second-feet.

Discharge, in second-feet, 1947-48

Day

1

2

4

5

7

8

Aug.

.

_

_

_

_

2.4

Sept.

6.4

6.4

6.0

6.4

6.0

6.0

6.0

6.0

Day

9

10

11

12

13

14

15

16

Aug.

3.1

3.4

3.4

3.1

2.9

2.9

2.9

2.7

Sept.

6.0

6.4

6.4

6.8

6.8

6.8

6.8

6.8

Day

17

18

19

20

21

^^

23

24

Aug.

2.9

3.1

3.1

3.4

3.6

3.8

4.0

4.0

Sept.

7.9

9.0

9.0

10

14

14

14

14

Day

25

26

27

28

29

30

31

Aug.

.0

.0

.2

.5

. .7

4.7

5.3

Sept.

14

14

14

14

14

14

-

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.

14

14

14

14

14

14

15

16

16

16

20

24

31

38

36

33

33

32

31

30

28

28

28

28

28

28

28

28

28

28

30

Nov.

29

29

31

31

31

28

27

27

29

28

27

28

27

26

28

31

31

31

31

28

25

27

25

23

31

33

33

35

36

38

-

Dec.

36

37

31

31

29

30

27

29

30

27

28

29

29

29

29

29

31

30

30

33

33

28

28

31

31

31

31

31

32

27

19

Jan.

27

32

38

36

34

34

35

38

42

40

39

36

33

33

31

31

30

31

31

28

29

35

37

36

33

35

29

20

26

33

36

Feb.

33

33

27

ZZ

33

30

27

24

30

40

28

22

24

37

35

37

39

38

40

40

41

44

46

41

45

44

44

45

38

_

-

Mar.

42

41

39

38

35

39

38

38

40

38

40

39

40

45

38

40

47

37

45

39

39

45

48

53

54

43

45

54

57

58

56

Apr.

62

73

84

68

63

59

57

60

65

142

156

132

119

117

144

187

217

241

214

189

182

171

150

132

130

148

159

148

134

113

Hay

105

102

105

106

112

115

119

110

95

89

88

86

84

88

86

86

83

78

72

67

60

59

56

54

53

53

51

50

48

47

49

June

56

58

58

52

48

44

42

42

42

41

39

37

35

33

31

27

24

23

22

21

21

20

20

19

18

18

18

17

17

19

July

17

17

16

16

16

16

16

15

12

9.9

9.5

9.5

9.0

8.6

7.5

4.7

3.8

3.8

3.8

3.8

3.8

3.8

3.8

4.2

a4.0

a3.9

a3.8

a3.7

a3.6

a3.5

a3.4

Aug.

a3.3

a3.2

a3.3

a3.4

a3.6

a3.8

a4.0

4.2

4.2

4.2

4.2

4.2

4.5

4.5

4.7

4.0

2.7

2.2

1.8

1.8

1.8

2.0

2.0

2.0

2.5

2.5

2.7

2.5

2.0

2.0

2.0

Sept.

2.2

2.5

2.5

2.7

2.9

3.1

3.4

2.2

1.5

1.5

1.8

2.4

2.5

2.5

2.7

2.9

3.1

3.6

3.6

3.8

3.8

4.0

3.8

4.0

5.6

8.2

8.2

8.2

8.2

8.6

a No gage-height record; discharge computed on basis of recorded range In stage and records for 

station at Isabella.

Monthly discharge, in second-feet, 1947-48

Month

September. ..................................

November. ..................

December. ................... ...... . .

March. ......................................

May.........................................

September. ..................................

Water year 1947-48 .......................

Secondfoot-days

277.9

116.0

13,780.2

Maximum

14

8.6

241

Minimum

6.0

1.5

1.5

Mean

3 59

9.2S

43 5

79 £

32 1

3.87

37.6

Runoff in 

acre-feet

551

5O9

230

27,350
200 KERN RIVER BASIN

South Pork Kern River at Isabella, Calif.

Location.- Water-stage recorder, lat. 35°40',-long. 118°28', in NW£ sec. 20, T. 26 S., R. 

33 JS., at Isabella, 0.2 mile upstream from mouth. Datum of gage is 2,484.3 feet above 

mean sea level (rivei'-profile survey).

Drainage area.- 985 square miles.

Records available.- October 1910 to September 1913, January 1929 to September 1948.

Average discharge.- 19 years (1929-48), 111 second-feet.

Extremes.- Maximum discharge during year, 163 second-feet Apr. 12 (gage height, 3.43 feet); 

miriimum, 4.7 second-feet July 29.

1929-48: Maximum discharge, 4,100 second-feet Feb.7, 1937, from rating curve extendied_ above 1,600 second-feet, verified by velocity-area study; maximum gage height, 6.99 

feet Mar. 9, 1943; minimum, 0.3 second-foot July 26, 1931.

Remarks.- Records fair. Many diversions above station for irrigation; considerable return

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12

12

12

12

12

13

12

9.6

9.8

10

11

13

11

11

11

11

10

13

13

13

13

13

13

12

12

12

12

12

12

12

13

Nov.

12

12

13

13

13

13

13

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

15

15

15

15

Dec.

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

16

17

18

18

19

20

22

26

28

31

34

34

34

34

34

31

Jan.

25

24

24

24

24

22

21

20

19

19

18

19

17

16

16

15

15

14

14

14

12

11

10

12

12

10

10

13

14

14

14

Feb.

14

14

14

14

15

16

16

16

16

16

16

16

16

17

17

18

20

20

20

19

18

18

19

18

19

18

19

19

18

_

-

Month

December. ...................................

Calendar year 1947 ......................

April ......................................

May. .......................................

September ..................................

Water year 1947-48 ......................

Peak discharge (base, 160 see. -ft. .- Apr.

liar.

18

18

19

20

20

22

22

21

21

20

21

22

24

22

22

22

28

26

28

28

28

34

34

40

48

68

67

57

58

60

55

Apr.

50

42

46

61

63

60

46

30

28

30

98

143

92

70

61

51

62

82

122

100

58

41

38

31

24

24

28

25

24

24

-

Secondfoe t-days

641

21,915.1

512

451 4

232 1

319.8

7,024.1

12 (5:30 a.

May

29

30

30

26

26

24

25

26

24

24

25

24

23

22

22

20

19

18

19

19

20

19

19

19

19

18

18

16

16

15

16

Maximum

34

326

11

143

June

15

16

15

16

16

15

15

18

20

20

19

19

19

19

18

17

16

16

16

15

15

13

10

9.8

9.8

9.8

9.8

12

13

9.2

-

Minimum

15

6.9

9.8

5.5

July

8.2

8.4

6.6

7.6

10

8.4

7.6

9.4

12

9.6

7.0

6.8

6.6

7.0

5.9

5.9

5.6

5.8

5.8

5.5

9.4

9.8

10

8.8

7.0

8.2

6.6

5.5

5.5

5.6

6.0

Aug.

8.6 8.8'

9.6

8.8

9.0

7.2

6.8

a6.4

5.9

6.2

6.0

5.6

5.7

6.4

6.4

6.6

7.8

11

9.6

10

10

11

. 10

11

11

1111

12

11

11

11

Mean

20.7

60.0

10.7

19.2

Sept.

11

11

10

10

10

11

1111

11

10

10

9.8

10

10

10

10

11

11

11

11

11

11

11

11

11

11

11

11

11

11

~

Runoff in 

acre-feet

728

1,270

43 , 460

540

634

13,930

m.) 163 sec. -ft.

a No gage-height recordj discharge Interpolated.
TULARE LAKE BASIN 201

Tulare Lake in Kings County, Calif.

Location.- Water-stage recorder, lat. 36°05', long. 119°49', at northeast corner sec. 29, 

T. 21 S., R. 20 E., 7.5 miles south of Stratford; water-stage recorder used at other 

locations at times. Datum of gages is at mean sea level.

Records available.- February 1937 to September 1948. March 1906 to September 1920 (incomplete) at several other sites, at different datum.

Extremes.- 1906-48: Maximum elevation, 196.8 feet June 27, 28, 1941; lake dry or practically so during parts of 1906, 1914, 1915-16, 1919, 1937, 1946; lake dry during 

entire years 1920-22, 1924-36, 1947, 1948.

Lake elevation of June 27, 28, 1941, was highest known since about 1890.

Remarks.- Tulare Lake receives water from Kings, Kaweah, and Tule Rivers during high-water 

periods and occasionally from Kern River, Deer Creek, and several small intermittent 

streams. Its natural boundary has been greatly altered by construction of levees and 

other reclamation work. Elevation at lowest point of lake bed is about 179 feet above 

mean sea level.

Lake was dry entire water year of 1947-48.

Cooperation.- Record furnished by Tulare Lake Basin Water Storage District.

White River near Ducor, Calif.

Location.- Water-stage recorder, lat. 35°49', long. 118°56', in NEv sec. 27, T. 24 S., R. 

2B E., 500 feet downstream from bridge at Gilliam Ranch, 3 miles downstream from Coko 

Creek, and 8 miles southeast of Ducor. Altitude of gage, about 695 feet (from topographic map).

Records available.- October 1944 to September 1948.

Extremes.- Maximum discharge during year, 111 second-feet Apr. 10 (gage height, 2.53 

reet); no flow for several months.

1944-48: Maximum discharge, 1,300 second-feet Feb. 2, 1945 (gage height, 6.35 

feet, site and datum then in use), by slope-area method; no flow during several months 

each year.

Flood of Mar. 9, 1943, estimated at 2,300 second-feet by Bureau of Reclamation.

Remarks.- Records fair. Small diversion above station for irrigation.

Cooperation.- Three discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

lb

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

0

0

0

0

0

0

0

0

.2

.6

.8

.0

.0

.1

.3

.3

 3,

.4

.4

.2

.1

.3

.4

.4

.4

.4

.2

.2

.1

.1

1.4

Feb.

1.4

1.4

1.5

1.6

3.0

4.1

3.8

3.2

2.7

2.5

2.5

2.1

2.0

1.8

1.9

1.9

2.1

2.1

2.5

2.8

2.7

2.7

2.5

2.5

2.3

2.1

1.9

2.3

2.5

_

-

Month

December ...................................

Calendar year 1947 ......................

May. .......................................

September ..................................

Water year 1947 -48 ......................

Mar.

1.9

1.7

1.6

1.6

1.7

1.8

1.9

2.0

2.5

3.2

3.2

3.4

3.8

3.6

7.4

7.5

7.7

7.9

6.8

6.8

5.1

4.1

3.8

5.1

9.0

6.8

5.6

5.4

4.8

5.9

5.9

Apr.

5.1

5.1

6.8

12

8.6

9.8

12

8.7

7.9

55

41

27

17

13

11

10

10

10

9.8

9.4

9.4

8.7

9.1

7.9

6.1

6.4

7.5

10

8.3

-

Secondfoot-days

0

875.9

26

139 5

0

822.4

May

6.8

5.9

5.4

5.4

6.4

7.2

7.9

6.8

5'. 6

4.8

4.8

5.1

5.9

6.4

6.1

5.9

5.6

6.4

6.8

5.9

5.1

4.6

4.1

4.1

4.1

4.3

3.8

4.3

4.3

4.6

5.4

Maximum

0

22

0

55

June

5.1

4.6

4.1

3.8

3.6

3.0

2.8

2.7

2.5

2.1

1.8

1.7

1.5

1.4

1.3

1.2

1.0

.9

.8

.6

.6

.4

.1

0

0

0

0

0

Minimum

0

0

0

0

July Aug.

Mean

0

2.40

0

2.25

Sept.

Runoff in 

acre-feet

0

1,740

735

94

0

1,630
202 TULARE LAKE BASIN

North Pork of Middle Pork Tule River near Sprlngvllle, Calif.

Location.- Water-stage recorder, lat. 36°11', long. 118°42', in sec. 23, T. 20 S., R. 30

K., i mile upstream from mouth and 7.8 miles northeast of Springvllle. Altitude of

gage, about 2,850 feet (from topographic map). 

Drainage area.- 39.5 square miles. 

Records available.- November 1939 to September 1948. January 1909 to December 1912 at site

v miles upstream. 

Extremes.- Maximum discharge during year, 460 second-feet Apr. 10 (gage height, 5.10 feet);

minimum, 0.5 second-feet Oct. 1.

1939-48: Maximum discharge, 2,200 second-feet Mar. 9, 1943 (gage height, 7.39 feet),

from rating curve extended above 300 second-feet by logarithmic plotting; minimum, 0.3

second-foot on many days in August and September 1947. 

Remarks.- Records excellent. Pacific Gas & Electric Co. conduit near Sprlngville diverts

a.5 miles upstream (see p. 204). 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project.

Rating table, water year 1947-48 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Sept. 6-30)

1.9

2.0

2.1

2.2

2.3

0.5 

1.2 

2.1 

3.2 

4.6

2.4 

2.6 

2.8 

3.0 

3.2

6.4

11

18

28

38

4.1 128

4.3 168

4.6 264

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

?

3

5

6

7

n

9

10

11

12

13

14

15

16

17

1H

19

20

21

2?.

23

24

25

26

27

28

29

30

31

Dot.

3.2

4.0

3.8

3.5

3.6

1.3

1.1

1.2

1.6

3.6

1.9

1.1

3.6

3.6

1.5

.9

.8

.7

.6

.6

.6

.6

.6

.6

.6

.6

.7

.9

1.0

.8

Nov.

1.1

2.0

1.3

1.1

1.0

.9

.8

.8

.8

.7

3.2

3.5

1.4

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

~

Dec.

1.0

1.1

1.0

1.2

1.3

2.9

1.9

1.3

1.2

1-1

1.1

1.1

1.1

1.0

1.0

1.3

1.3

1.2

1.2

4.7

2.1

1.4

1.3

1.2

1.1

1.1

1.1

1.1

1.1

1.1

Jan.

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.8

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

Feb.

0.8

.7

.7

1.4

1.6

1.5

3.6

2.0

3.5

1.8

1.5

1.5

1.5

1.6

1.6

1.9

2.0

1.8

1.6

1.5

4.2

5.0

4.6

2.3

1.5

1.3

1.7

1.6

-

-

Month

December ....................................

Calendar year 1947 ......................

March. .....................................

April ......................................

May. .......................................

July. ......................................

September. .................................

Water year 1947-48 ......................

Mar.

.6

: .s

.5

.3

.2

.2

.2

.5

.5

.4

.3

.4

.8

.2

.5

.6

.0

 .3

.5

.2

.9

.8

'. .1

.3

.0

.0

.2

.7

.9

.1

Apr.

6.2

7.7

17

8.2

10

7.5

6.8

11

232

68

24

14

11

12

23

35

41

45

50

52

40

26

13

12

19

31

34

28

18

-

Secondroot days

43.0

1,564.9

913 4

2 313

22.6

4,027.9

May

13

12

21

91

125

132

93

60

49

54

70

93

115

132

142

135

112

75

53

42

43

57

70

79

88

84

69

54

47

53

Maximum

4.7

28

232

.9

232

June

44

31

28

24

20

21

27

25

19

16

13

11

9.4

7.5

6.8

6.6

4.6

2.8

2.6

2.5

2.4

2.2

2.1

2.1

2.0

1.9

1.9

1.9

1.8

-

Minimum

1.0

.3

.6

.6

July

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.6

1.6

1.4

1.3

1.3

1.3

1.2

1.2

1.2

1.2

1.1

1.1

Aug.

1.1

1.0

1.0

1.0

1.0

.9

.9

1.0

1.1

1.0

1.0

1.1

1.0

1.0

1.0

.9

.9

.9

.9

.8

.8

1.0

1.0

.9

.9

.9

.8

.8

.8

Mean

1.39

4.29

.75

11.0

Sept.

0.8

.8

.8

.8

.7

.7

.8

.8

.8

.7

.7

.7

.7

.8

.7

.7

.8

.8

.8

.7

.8

.9

.9

.8

.7

Runoff in 

acre fest

85

3,100

45

7,990
TULARE LAKE BASIN 203

Tule River near Porterville, Calif.

Location.- Water-stage recorder, lat. 36°05', long. 118°55', in NW£ sec. 25, T. 21 S., R. 

2a 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 1948.

Average discharge.- 47 years, 145 second-feet.

Extremes.- Maximum discharge during year, 3,600 second-feet Apr. 10 (gage height, 8.63 

reet); minimum, 0.1 second-foot Oct. 1-11, and part of each day Sept. 7-23.

1901-48: Maximum discharge, 13,500 second-feet in main channel plus 2,000 secondfeet (estimated) in overflow channel 0.2 mile east, Mar. 9, 1943 (gage height, 11.3 

feet), from rating curve extended above 4,000 second-feet on basis of velocity-area 

studies and logarithmic plotting; no flow during parts of 1934, 1935, 1947.

Remarks.- Records good. Several small diversions above station for irrigation. Power is 

developed on Middle Fork and tributaries.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.

25'6.

10

6.

3.

3.

3 . )

3. 5

4.

3.

2.

2.

2.

2.

3.

3.

4.

5.

13

16

Nov.

12

28

26

20

19

18

17

19

20

17

17

14

16

19

19

21

21

22

23

23

23

23

23

23

22

22

20

20

21

22

-

Dec.

23

23

23

29

30

26

25

27

28

26

25

26

26

26

26

26

26

31

30

30

31

30

29

27

26

26

27

26

26

26

24

Jan.

25

25

25

24

24

23

23

24

25

25

23

23

23

23

22

20

19

18

17

14

16

14

15

14

14

9.7

10

10

9.2

9.2

9.7

Feb.

9.2

11

10

10

34

38

39

30

31

37

41

36

34

33

33

34

36

40

44

41

38

37

41

37

34

32

32

33

34

-

-

Month

October. ...................................

November. ........................ .........

December . ..................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March ......................................

April.. ....................................

May........................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1947-48 ......................

Mar.

32

30

25

23

22

22

21

20

23

25

21

19

19

56

85

74

123

89

89

86

75

73

78

156

189

122

116

116

125

151

138

Apr.

135

151

280

261

166

191

158

137

140

1,670

750

434

310

- 256

263

287

325

330

328

330

346

310

265

218

195

203

225

247

273

238

-

Secondfoot days

127.1

610

830

15,732.5

575.8

939.2

2,243

9,422

8,106

2,936

289.3

19.7

6.2

26,103.3

May

201

183

173

229

294

393

440

360

263

220

214

240

282

315

343

365

349

346

273

231

203

187

199

227

240

252

256

233

205

193

197

Maximum

25

28

31

175

25

44

189

1,670

440

181

27

1.6

.5

1,670

June

181

173

160

169

156

144

138

144

144

132

123

118

111

102

94

89

80

78

70

66

63

60

55

51

47

44

42

38

33

31

~

Minimum

0.1

12

23

0.1

9.2

9.2

19

135

173

31

1.5

.2

.1

0.1

July

27

25

22

20

19

19

18

17

16

15

13

12

9.2

7.5

6.3

4.9

4.2

3.6

3.4

3.2

3.0

2.7

2.4

2.2

2.4

2.2

1.8

1.6

1.6

1.6

1.5

Aug.

1.6

1.6

1.3

1.2

.9

.9

1.2

.9

.8

.S

.8

.8

.7

.6

.5

.5

.5

.5

.5

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

Mean

4.10

20.3

26.8

43.1

18.6

32.4

72.4

314

261

97.9

9.30

.64

.21

71.3

Sept.

0.2

.2

.2

.2

.2

.2

.2

.1

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.2

.2

.2

.3

.5

.3

.3

.3

.2

.3

~

Runoff in 

acre feet

252

1,210

1,650

31,210

1,140

1,860

4,450

18,690

16,080

5,820

572

39

12

51,780

Peak discharge (base SOO sec.-ft.].- Apr. 10 (9:30 a.m.) 3,60O sec.-ft.
204 TULARE RIVER BASIN

Pacific Gas & Electric Co. conduit near Springville, Calif.

Location.- Water-stage recorder lat. 36°12', long. 118°39'. in NWv sec. 18 T. 20 S., R. 

31 K., 0.5 mile downstream from intake and 10 miles northeast of Springville. Altitude of gage, about 4,000 feet (from topographic map).

Records available.- October 1939'to September 1948.

Extremes.- Maximum daily discharge during year, 70 second-feet Apr. 16; minimum daily, 

'I.'I second-feet Oct. 5.

1940-48: Maximum daily discharge, thit of Apr. 1 , 1948; no flow Jan. 10, 1945.

Remarks.- Records good. Conduit diverts from left bank of North Fork of Middle Fork 

TUJ.P River in sec. 18, T. 20 S., R. 31 E. Water is used for power development at 

Tule River powerhouse of Pacific Gas & Electric Co., 3.5 miles downstream and is then 

returned to river.

Cooperation.- Water-stage recorder grgph, furnished by Pacific Gas 

tained in connection with a Federal Power Commission project.

Electric Co., o'bDischarge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

7.9

8.0

9.0

f9.5

7.7

9.2

11

12

12

17

27

17

12

10

11

13

13

13

12

12

13

13

12

12

12

12

12

12

14

16

14

Nov.

14

18

15

14

14

14

14

14

14

13

12

10

11

13

13

13

13

13

14

13

13

13

13

13

13

13

13

13

13

13

Dec.

14

13

13

14

14

14

11

14

13

13

13

14

14

14

13

13

14

14

14

14

10

14

14

13

14

14

14

13

13

12

13

Jan.

13

13

13

13

13

13

13

14

13

13

13

13

13

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

Feb.

12

12

12

12

12

13

12

12

14

15

14

14

14

14

15

16

18

18

18

18

17

17

15

14

16

16

16

16

15

-

month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1947 ......................

January. ...................................

February. ..................................

March. .....................................

April.. ....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

15

15

15

14

15

15

15

15

16

16

16

16

16

17

17

16

16

18

18

18

17

20

22

23

21

22

24

26

29

29

31

Apr.

36

38

51

38

32

32

29

30

38

65

65

60

55

58

67

70

68

67

68

68

68

67

66

63

64

65

67

67

66

65

-

Secondfoot days

385 . 3

399

414

8,271.6

386

427

583

1,693

2,050

1,610

702

454

364,

9,467.3

May

63

63

64

66

66

67

66

66

66

66

66

67

68

68

68

68

68

68

68

67

67

67

67

68

68

68

68

67

67

67

47

Maximum

27

14

64

14

18

31

70

68

66

31

17

13

70

June

59

65

65

66

65

64

64

65

65

64

63

62

62

61

59

56

53

53

51

49

49

47

44

42

40

39

37

35

34

32

-

Minimum

7.7

10

10

1.4

12

12

14

29

47

32

17

12

12

7.7

July

31

31

30

29

29

28

27

27

26

25

24

24

23

23

22

22

21

21

20

2Q

20

19

19

19

19

18

17

17

17

17

17

Aug.

17

 17

17

17

16

16

15

15

15

15

15

15

15

15

15

14.

14

14

14

14

14

14

14

, 14

14

13

14

14

13

13

12

Mean

12.4

13^4

22.7

12.5

14.7

18.8

56.4

66.1

53.7

22.6

14.6

12.1

25.9

Sept.

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

13

13

13

13

12

12

12

-

Runoff in 

acre feat

764

791

821

16,400

766

847

1,160

3,360

4,070

3,190

1,390

900

722

18,780

f Computed on basis of partly estimated gage-height record.
TULARE LAKE BASIN 

South Fork Tule River near Success, Calif.

205

Locgtion.- Water-stage recorder, lat. 36°03', long. 118°51', in NW£ sec 4 T 22 S R 

29*r-T4 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 1948.

Average discharge.- 18 years, 44.4 second-feet.

Extremes.- Maximum discharge during year, 1,030 second-feet Apr. 10 (gage height 4 31 

reetj; no flow for several months. ' '

1930-48: Maximum discharge, 6,210 second-feet Mar. 9, 1943 (gage height, 8 24 feet) 

from rating curve extended above 1,600 second-feet on basis of velocity-area studies 

and logarithmic plotting; no flow at times during each year except 1938, 1943, 1945.

Remarks.- Records good. Several diversions above station for irrigation.

Discharge, in second feet, water year October 1947 to Septesber 1943

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

0

0

o

0

o

0

o

0

0

2.7

1.2

.5

.3

.2

O

0

0

0

0

.1

.1

.1

.1

.4

.7

1.0

1.4

2.8

3.2

Nov.

2.6

9.9

8.8

4.5

4.0

4.0

3.4

3.2

3.1

2.9

2.9

2.9

2.9

3.2

3.6

4.2

4.5

4.2

4.0

4.2

4.0

4.0

3.8

3.4

3.6

3.8

3.6

3.5

3.4

4.0

Dec.

3.8

4.5

4.0

5.6

7.3

6.8

5.2

6.0

6.4

5.6

5.2

5.0

5.6

5.6

5.6

5.6

6.4

8.8

7.8

7.8

8.8

8.3

7.8

7.3

7.3

7.8

7.8

7.8

7.3

7-: s

5.6

Jan.

6.8

7.3

8.3

6.0

6.0

6.0

5.6

5.6

6.4

6.0

6.0

6.0

5.0

4.0

4.0

4.0

4.0

3.1

3.1

3.1

2.9

2.9

2.2

2.2

2.5

2.4

2.4

2.2

2.0

2.0

2.2

Feb.

2.4

2.2

2.2

1.8

5.0

9.7

9.7

7.3

6.8

9.2

10

7.8

7.8

7.8

7.8

7.8

8.8

11

11

9.7

9.7

10

12

9.2

7.8

6.8

6.4

6.8

8.3

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar vear 1 Q47

Janu 

Febr

ary

larv ...

March. .....................................

April ......................................

May. .......................................

June .......................................

July... ....................................

August .....................................

September ..................................

Hater year 1947-48 ......................

Mar.

6.8

6.4

6.0

6.4

6.0

5.6

5.6

5.6

7.3

6.4

4.5

3.1

3.6

16

25

20

34

22

23

22

18

20

23

37

44

33

33

33

34

41

38

Apr.

39

45

80

74

49

60

52

44

44

491

228

124

92

75

76

80

86

83

81

81

83

76

67

56

52

55

55

58

65

58

-

Seccndfoot-days

14.8

120.1

201.7

3,385.4

132.2

589 . 3

2,609

1 '555 509

54.5

0

O

6,008.4

May

51

4-6

44

47

52

66

74

64

51

47

45

46

49

52

55

57

56

61

55

50

46

42

41

41

40

41

40

38

37

37

38

Maximum

3 . 2

9 9

8.8

51

8.3

12

44

491

74

36

4.0

0

0

491

June

36

34

32

30

29

27

24

24

23

23

22

21

20

19

19

18

16

15

14

14

14

14

12

9.7

9.7

9.7

9.2

6.8

5.2

4.7

-

Minimum

0

2.6

3.8

0

2.0

s'.i

39

37

4.7

0

0

0

0

July

4.0

3.4

3.1

3.1

3.6

3.8

3.8

4.0

3.8

3.2

3.1

2.9

2.6

2.5

1.7

1.2

1.0

.8

.8

.8

.5

.4

.3

.1

0

0

0

0

0

0

0

Aug.

Mean

0.48

4.00 

6.51

9.28

4.26

7 . 68

87 . 0

48 . 7

18 . 5

1.76 

0

0

16.4

Sept.

Runoff in 

acre-feet

29

238 

400

6,720

262

442

1,170

5,170 

2 990

lllOO

0

0

11,910

Peak discharge (base, 200 sec.-ft.).- Apr. 10 (9 a.m.) 1,030 sec.-ft.
TULARE IAKE BASIN

Kaweah River near Three Rivers, Calif.

Location.- Water-stage recorder, lat. 36°24', long. 118°57', in SW£ sec. 33, T. 17 S., R.

HB E. , 2.5 miles downstream from South Fork and 3 miles southwest of Three Rivers post

office. Altitude of gage, about 620 feet (from topographic map). 

Drainage area.- 520 square miles. 

Records available.- February 1936 to September 1948. April 1903 to January 1936 at site

V miles upstream.

Average discharge.- 45 years, 569 second-feet. 

Extremes.- Maximum discharge during year, 7,130 second-feet Apr. 10 (gage height, 8.90

feet) t - minimum, 12 second-feet Oct. 2 (gage height, 0.75 foot).

1903-48: 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 good. Diversions above station for irrigation and power development on

Middle and East Forks.

Revisions.- Revised monthly and annual figures of discharge and runoff for the period 

 April 1918 to March 1921, superseding those published in Water-Supply Papers 481, 511,

531, and 881 are given on the following page. These records were revised because of

unreliable gage readings. Revisions are based on multiple correlation with unpublished

records for Kaweah River at McKay Point and published records for North Fork Kaweah

River at Kaweah. Records for McKay Point, including those for three diversions upstream,

were furnished by H. H. Holley of Visalia, Calif.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

1.0

1.1

1.2

1.4 

1.6 111

156

209

331

2.8 

3.2 

3.6 

4.0 

4.5

476

655

845

1,060

1,380

6.0 

6.5

1,750

2,180

2,680

3,280

4,100

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

21 

20 

23 

21 

19

19 

21 

23 

24 

33

137 

124 

71 

60 

57

SO 

68 

68 

62 

60

58 

67 

62 

59 

56

52

51 

52 

51 

84 

82

Nov.

75 

115 

115 

92 

85

78 

72 

67 

64 

61

60 

59 

57 

56 

58

60 

59 

58 

59 

59

56 

56 

53 

52 

57

57 

56 

57 

58 

59

Dec.

59 

62 

59 

65 

64

64 

64 

65 

65 

62

60 

64 

64 

64 

64

64 

69 

74 

71 

74

77 

71 

68 

67 

68

69 

69 

68 

67 

60 

53

Jan.

62 

64 

62 

65 

67

65 

64 

67 

67 

72

65 

61 

60 

58 

58

57 

56 

53 

53 

51

51 

52 

54 

52 

52

51 

50 

44 

46 

49 

52

Feb.

51 

52 

47 

49 

69

77 

69 

68 

71 

100

80 

74 

74 

77 

75

80 

94 

105 

109 

105

102 

115 

126 

103 

98

94 

90 

102 

92

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

96 

92 

85 

82 

78

84 

82 

82 

89 

87

85 

87 

87 

154 

179

172 

261 

190 

196 

177

149 

166 

209 

390 

339

267 

261 

289 

315 

321 

277

Apr.

315 

382 

581 

465 

334

351 

318 

289 

379 

3,970

1,630 

922 

727 

628 

650

736 

885 

956 

926 

'966..

1,020 

928 

800 

660 

691

830 

972 

1,000 

934 

755

Seeondfoot-days

1,665 

1,970 

2,034

111,184

1,780 

2,448 

5,428 

25,002 

49,898 

32,625 

6,346 

1,570 

981

131,747

May

678 

646 

660 

1,020 

1,480

1,930 

2,100 

1,660 

1,160 

994

1,110 

1,420 

1,750 

2,140 

2,440

2,610 

2,500 

2,180 

1,460 

1,140

1,010 

1,140 

1,620 

1,960 

2,140

2,360 

2,280 

1,920 

1,610 

1,490 

1,290

Maximum

137 

115

77

1,830

72 

126 

390 

3,970 

2,610 

1,850 

498 

75 

39

3,970

June

1,260 

1,290 

1,180 

1,420 

1,110

1,130 

1,350 

1,850 

1,670 

1,330

1,400 

1,440 

1,390 

1,300 

1,200

1,160 

1,070 

1,020 

906 

880

865 

860 

825 

770 

755

718 

678 

632 

601 

565

July

498 

429 

390 

355 

321

293 

273 

264 

252 

246

240 

231 

217 

204 

190

179 

172 

159 

154 

144

134 

126 

119 

113 

109

102 

94 

89 

87 

84 

78

Minimum

19 

52 

53

19

44

47 

78 

289 

646 

565 

78 

36 

28

19

Aug.

75 

72 

69 

67 

64

60 

57 

53 

54 

52

53 

53 

52 

51 

49

48 

47 

46 

45 

45

45 

44 

45 

46 

45

42 

40 

40 

38 

36 

37

Mean

53.7 

65.7 

65.6

305

57.4 

84.4 

175 

833 

1,610 

1,088 

205 

50.6 

32.7

360

Sept.

39 

38 

36 

35 

35

34 

33

33 

31 

31

31 

32 

33 

33 

32

29 

32 

32 

34 

34

32 

28 

31 

32 

33

34 

33

32 

30 

29

Runoff In 

acre-feet

3,300 

3,910 

4,030

220,500

3,530 

4,860 

10,770 

49,590 

98,970 

64,710 

12,590 

3,110 

1,950

261,300

Peak discharge (base, 2,200 see.-ft.).- Apr. 10 (6 a.m.) 7,130 sec.-ft.; May 6 (11 p.m.) 2,660 

see.-ft.; May IS (ll p.m.) 3,380 see.-ft.; May 26 (lOjIT ----- - ....' .

2,440 sec.-ft.

:30 p.m.) 3,250 sec.-ft.; June 8 (11 p.m.)
Revised monthly discharge of Kaweah River near Thr 

October 1917 to September 1921

Rivers, Calif.

Month

December. ....................

Calendar year 1917. ........

September ....................

December. ....................

Calendar year 1918. ........

May..........................

September. ...................

Water year 1918-19. ........

December. ....................

Calendar year 1919. ........

September. ...................

Water year 1919-20. ........

December. ....................

Calendar year 1920. ........

September. ...................

Discharge in 

second-feet 

(mean)

55 4

54.8

601

545

927

54

140

338

1 430

22

358

140

340

342

47

482

155

495

360

829

1,450

43.8

Runoff in 

acre-feet

3,370

436,000

3,200

228 3 000

8,600

245,000

1,300

259,000

3,300

8,600

246,000

7,500

67,000

84,000

21,000

5,000

2,800

350,000

6,600

7,300

9,500

359,000

15,000

20,000

39,000

49,300

89,200

85,100

20,000

4,060

2,610

348,000

342,000

Note.- Figures for October 1917 to March 1918 and April to Sepsmber 1921 are the same as originally published.
SOS TULARE LAKE BASIN

North Fork Kaweah River at Kaweah, Calif.

Location.- Water-stage recorder , 36°29' , long. 118°55', in SE£ sec. 34, T. 16 S., R. 28 

K., 1.2 miles upstream from Mannikin Creek, 1.5 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 1948. October 1910 to October 1933 at site 

1 mile downstream.

Average discharge.- 37 years (1911-48), 99.8 second-feet.

Extremes.- Maximum discharge during year, 2,460 second-feet Apr. 10 (gage height, 6.40 

1'eet); minimum, 2.6 second-feet Sept. 15.

1910-48: 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 July to October 1924.

Remarks.- Records good. Several small diversions above station for irrigation.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.4

3.4

3.6

3.6

3.6

3.6

3.6

3.9

4.2

6.1

16

13

9.6

8.4

7.8

7.8

7.6

7.8

7.6

7.0

6.7

6.8

7.2

7.2

7.2

6.8

6.7

6.8

7.2

9.2

10

Nov.

9.4

13

13

11

10

9.8

9.2

9.0

9.0

9.0

8.8

9.0

9.0

8.8

9.4

9.6

9.6

9.4

9.4

9.6

9.0

9.2

9.0

8.6

8.8

9.0

9.0

9.0

9.2

9.2

Dec.

9.4

9.6

9.6

11

11

10

10

11

11

10

10

10

10

10

10

10

11

12

12

12

12

12

11

11

11

11

11

11

11

11

9.6

Jan.

10

10

1111

11

1111

12

12

11

11

10

10

10

9.8

9.8

9.6

9.4

9.4

9.2

9.0

9.2

9.4

9.4

9.2

9.0

9.0

8.4

8.2

8.6

8.6

Feb.

8.8

8.8

9.2

8.6

13

14

13

13

13

20

15

13

13

13

13

13

16

20

22

21

20

22

25

18

16

16

16

18

18

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1947 ......................

January. ...................................

February ...................................

March. .....................................

April. .....................................

May........................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1947-48 ......................

Mar.

16

16

15

14

14

14

14

14

16

15

14

14

14

31

31

32

50

33

34

30

25

29

43

92

74

58

59

68

72

72

59

Apr.

74

89

159

120

80

89

76

69

121

1,300

517

278

212

175

175

206

246

265

253

262

275

250

212

166

190

228

250

240

228

188

-

Secondfoot-days

LJ 13.4

285.0

331.2

15,811.3

306.2

449.4

1,082

6,993

6,502

2,130

471.6

178.9

107.5

19,O50.2

May

168

155

151

223

288

350

354

285

217

196

203

228

25O

262

272

268

256

262

214

183

162

149

157

162

164

168

166

151

136

138

164

Maximum

16

13

12

151

12

25

92

1,300

354

133

25

9.0

4.6

1,300

June

133

124

116

116

112

103

99

106

96

89

85

83

78

72

68

65

60

57

54

50

48

47

42

39

36

34

33

30

28

27

~

Minimum

3.4

8.6

9.4

3.2

8.2

8.6

14

69

136

27

9.2

3.6

2.8

2.8

July

25

23

22

22

21

20

20

20

18

18

17

17

16

15

15

15

14

13

13

12

12

12

11

11

11

11

10

9.4

9.2

9.6

9.4

Aug.

9.0

8.6

8.4

8.2

8.0

7.6

7.0

6.0

6.1

6.1

6.1

6.0

5.8

5.8

5.7

5.6

5.4

5.2

4.4

4.6

4.6

4.9

5.0

5.0

4.9

4.9

4.6

4.4

3.8

3.6

3.6

Mean

6.88

9.50

10.7

43.3

9.88

15.5

34.9

233

210

71.0

15.2

5.77

3.58

52.0

Sept.

3.4

3.2

3.2

3.1

3.4

3.4

3.6

3.3

3.2

3.2

3.2

3.3

3.2

3.2

2.8

2.8

2.8

3.4

3.6

3.8

3.9

3.8

3.9

4.2

4.4

4.4

4.2

4.6

4.6

4.4

Runoff in 

acre-feet

423

565

657

31,360

607

891

2,150

13,870

12,900

4,220

935

355

213

37,790

Peak discharge (base, 1,100 sec.-ft.).- Apr. 10 (4:30 a.m.) 2,460 sec.-ft.
TULARE LAKE BASIN 209

Sand Creek near Orange Cove, Calif.

Location.- Water-stage recorder, lat. 36°37'35", long. 119°14'45", in NWi sec. 15, T. 15 S. 

RT~Z3~E., 3.8 miles east of Orange Cove. Altitude of gage, about 490 feet (from topographic map).

Drainage area.- 32 square miles.

Records available.- October 1944 to September 1948.

Extremes.- Maximum discharge during year, 19 second-feet Apr. 1C (gage height 1.47 feet); 

no now for several months.

1944-48: Maximum discharge, 410 second-feet Feb. 2, 1945 (gage height, 4:00 feet), 

by slope-area method; no flow for several months each year.

Flood of Mar. 9, 1943, estimated at 1,000 to 1,200 second-feet by Alta Irrigation 

District.

Remarks.- Records fair. No regulation or diversion above.station. 

Cooperation.- Four discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March ......................................

April....... ...............................

May. .......................................

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1947-48 ......................

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

1.0

.5

.3

.2

.2

.2

.2

Apr.

0.2

.2

.3

.4

.3

.3

.3

.3

.4

8.0

2.9

1.7

1.2

'.1

.6

-5

.4

.4

.3

.3

.3

.3

.2

.2

.2

.1

.2

2.0

1.1

Secondfoot-days

0

0

0

175.1

0

0

2.6

25.1

1.9

0

0

0

0

29.6

May

0.6

.4

.2

.2

.2

.1

a.l

a.l

ao

aO

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

0

0

16

0

0

1.0

8.0

.6

0

0

0

0

8.0

June

Minimum

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

July Aug.

Mean

0

0

0

.48

0

0

.08

.84

.06

0

0

0

0

.08'

Sept.

Runoff in 

acre-feet

0

0

0

347

0

0

5.2

50

3.8

0

0

0

0

' 59

a No gage-height record; discharge computed by Interpolation.
210 TDLARE 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. 

Vib JS. (unsurveyed), 1 mile upstream from North Fork 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 1948. March 1927 to December 1928 at site 

naif a mile downstream.

Average discharge.- 18 years (1927-28, 1931-48), 1,447 second-feet.

Extremes.- Maximum discharge during year, 6,540 second-feet May 27 (gage height, 5.90 

reet); minimum, 99 second-feet Feb. 4.

1927-28, 1931-48: Maximum discharge, 42,000 second-feet Dec. 11, 1937 (gage height, 

12.02 feet), from rating curve extended above 11,000 second-feet on basis of velocityarea studies; minimum, 79 second-feet Oct. 13, 1934 (gage height, 0.54 foot).

Remarks.- Records excellent. Flow slightly regulated by small reservoirs above station 

on Ten Mile and Mill Flat Creeks.

Cooperation.- Gage-height record collected in cooperation with Pacific Gas & Electric Co.

Rating .table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

0.4 97 .0 214 2.0

.5 113 .2 268 2.4

.6 130 .4 330 2.8

.7 148 .6 401 3.2

.8 168 .8 483 3.6

576 4.0 2,280

802 4.5 3,040

1,080 5.0 4,040

1,420 5.6 5,600

1,810

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

128

128

128

123

122

122

122

123

123

168

260

237

214

222

232

248

274

292

295

301

314

308

286

271

254

246

243

240

257

314

308

Nov.

324

361

354

330

304

271

248

248

237

212

207

200

181

186

188

190

188

186

183

172

162

168

160

152

170

168

166

166

170

175

-

Dec.

172

170

162

164

160

170

170

166

162

156

148

158

158

162

164

158

166

168

164

164

166

162

158

160

158

158

158

156

156

146

122

Jan.

144

152

164

160

160

156

156

164

168

162

158

152

 150

150

144

146

143

141

137

130

135

139

141

139

137

139

135

120

125

128

130

Feb.

130

134

120

110

150

152

139

139

164

195

156

143

158

175

166

170

183

200

217

200

197

212

240

214

202

200

186

192

188

-

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1947 ......................

January. ...................................

February ...................................

March. ......................................

April ......................................

Hay. .......................................

June .......................................

July. .......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

186

186

181

175

170

175

168

170

181

175

175

175

177

230

243

262

295

262

301

280

265

298

333

476

425

397

417

437

441

429

413

Apr.

2

1

1

1

1

1

1

1

1

1

1

1

1

Secondfoot-days

6,903

6,427

4,962

318,584

4,505

5,032

8,498

33,448

103,140

97,160

30,760

7,464

3,751

312,050

449

506

639

547

488

618

519

510

712

,600

,500

,060

924

846

910

,030

,210

,370

,370

,410

,550

,470

,280

,130

,210

,510

,710

,660

,460

,250

-

May

1,100

1,120

1,300

1,740

2,450

3,470

4,080

3,090

2,350

2,100

2,340

2,680

3,410

4,060

4,760

5,520

5,350

4,530

2,990

2,310

1,940

2,040

2,940

4,040

4,530

5,260

5,400

5,100

4,240

3,890

3,010

Maximum

314

361

172

5,720

168

240

476

2,600

5,520

4,310

2,270

394

144

5,520

June

2,760

2,890

2,820

3,450

2,640

2,480

2,940

3,530

4,130

3,430

3,800

4,310

4,240

3,910

3,760

3,650

3,450

3,240

2,890

2,850

2,940

3,450

3,280

3,090

3,110

3,090

2,990

2,870

2,760

2,410

-

Minimum

122

152

122

122

120

110

168

449

1,100

2,410

405

146

110

110

July

,270

,030

,810

,600

,370

,180

,100

,060

,070

,140

,200

,180

,140

,040

993

965

937

904

872

827

766

725

684

623

571

524

483

449

429

413

405

Aug.

394

;

;

,_

86

79

64

350

333

c

;

;

20

04

89

277

262 '

r

2

51

43

32

224

217

2

2

;

09

02

197

192

186

]

]

83

79

77

172

166

L64

L60

L54

L52

146

Mean

223

214

160

873

145

174

274

1,115

3,327

3,239

992

241

125

853

Sept.

14*

141

141

141

13?

13?

137

134

13?

128

127

12f

123

123

12?

120

120

12C

12C

12 C

lie

115

115

115

HE

lie

12C

lie

113 lie

-

Runoff in 

acre-feet

13,690

12,750

9,840

631,900

8, 940

ie',6eo

66,340

204,600

192,700

61,010

14,800

7,440

619,000

Peak: discharge (base, 5,400 sec.-ft.).- May 27 (2 a.m.) 6,540 see.-ft.
TULARE LAKE BASIN

Kings River at Piedra, Calif.

Location.- Water-stage recorder, lat. 36°49'02", long. 119°23'08", in NW£ sec. 8, T. 13 

5., K. 24 E., 0.5 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.

Hecords available.- September 1895 to September 1948.

Average discharge.- 53 years, 2,314 second-feet.

Extremes.- Maximum discharge during year, 13,000 second-feet Apr. 10 (gage height, 9.80 

reetj; minimum, 124 second-feet Sept. 26 (gage height, 0.80 foot).

1895-1948: 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 studies; minimum, 67 second-feet Oct. 3, 1924.

Remarks.- Records excellent. Flow slightly regulated by small reservoirs on Ten Mile 

and Mill Flat Creeks, and by power plant on North Fork.

Cooperation.- Eleven discharge measurements and assistance in collecting gage-height 

record rurnished by Kings River Water Association.

Revisions (water years).- W 831: 1932(M), 1933(M), 1935(M), 1936(M).

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Backwater corrections applied May 21-23)

Oct. 1 to May 23 May 24 to Sept. 30

1.2 217 3.0 980 5.5 3,310 0.8 124 2.7 760 5 

1.6 318 3.5 1,310 6.0 4,020 1.0 163 3.1 990 6 

2.0 472 4.0 1,710 7.0 5,700 1.3 232 3.6 1,320 7 

2.3 605 4.5 2,160 8.0 7,840 1.7 340 4.1 1,720 8 

2.6 755 5.0 2,680 9.0 10,500 2.1 476 4.6 2,200 9 

2.4 610 5.1 2,760

Discharge, in second- feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

140 

140 

140 

138 

134

132 

132 

134 

136 

158

316 

347 

287 

262 

264

277 

298 

315 

337 

337

347 

358 

344 

312 

296

285 

274 

274 

280 

586 

430

Nov.

409 

507 

507 

459 

396

361 

304 

290 

287 

272

252 

252 

238 

222 

233

238 

242 

231 

233 

224

212 

210 

203 

189 

196

212 

212 

210 

210 

222

Dec.

228 

226 

219 

203 

212

208 

215 

215 

215 

201

199 

192 

203 

203 

203

206 

215 

222 

208 

224

226 

219 

212 

212 

212

210 

210 

210 

206 

203 

180

Jan.

167 

192 

201 

210 

208

215 

212 

215 

254 

250

231 

212 

201 

201 

196

192 

192 

187 

ISO 

176

167 

176 

185 

180 

180

180 

185 

169 

152 

165 

167

Feb.

165 

165 

178 

158 

187

217 

210 

189

206 

259

269 

210 

206 

228 

242

231 

254 

287 

310 

315

324 

285 

365 

337 

296

287 

280 

274 

293

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

ber...... ..............................

mbe r ...................................

lendar year 1947 

ary

ember . .................................

ter year 1947-48 ......................

Peak discharge (base, 8,500 sec. -ft.).- Ap

sec. -ft.; May 17 (3 a.m.) 12,600 sec. -ft.; M 

sec. -ft.

Mar.

269 

274 

269 

254 

242

240 

242 

235 

257 

262

252 

250 

257 

344 

405

405 

645 

551 

538 

574

455 

46S 

578 

1,090 

1,230

821 

735 

794 

876 

865 

799

Apr.

1

7

3 

2

1

1 

1

2 

2 

2 

2 

2

3 

2 

2 

2 

2

3 

3 

3 

2 

2

Secondfoot-days

8,010 

8,233 

6,517

494,935

5,998 

7,227 

15,476 

69,410 

188,660 

143,740 

36,097 

8,428 

4,077

501,873

882 

000 

380 

310 

010

240 

130 

950 

963 

260

680 

370 

920 

670 

760

070 

220 

790 

670 

760

090 

960 

540 

100 

320

000 

420 

480 

970 

490

May

2,130 

2,110 

2,300 

3,190 

4,590

6,340 

7,670 

6,100 

4,550 

3,990

4,490 

5,230 

6,460 

7,720 

8,960

10,400 

10,200 

9,110 

5,640 

4,310

3,410 

3,320 

4,920 

7,120 

7,920

9,240 

9,600 

8,710 

7,000 

6,520 

5,410

Maximum

430 

507 

228

9,580

254 

365 

1,230 

7,260 

10,400 

7,050 

2,780 

444 

157

10,400

June

4,740 

5,090 

4,890 

6,240 

4,610

4,070 

4,850 

5,860 

7,050 

5,760

5,920 

6,500 

6,400 

5,840 

5,520

5,260 

4,850 

4,510 

4,120 

3,950

3,940 

4,360 

4,200 

3,940 

3,880

3,810 

3,680 

3,500 

3,350 

3,050

Minimum

132 

189 

180

132

152 

158 

235 

8S2 

2,110 

3,050 

454 

163 

126

126

July

2,780 

2,510 

2,230 

1,970 

1,690

1,460 

1,310 

1,250 

1,250 

1,280

1,330 

1,330 

1,290 

1,200 

1,130

1,100 

1,060 

1,030 

990 

936

870 

820 

776 

720 

670

610 

562 

521 

492 

476 

454

6 3,360 

2 4,110 

3 5,840 

0 7,260 

0 9,700

Aug.

444 

430 

419 

412 

392

375 

353 

340 

325 

310

296 

285 

274 

267 

257

247 

237 

232 

225 

220

213 

210 

203 

199 

196

192 

187 

181 

174 

170 

163

Mean

258 

274 

210

1,356

193 

249 

499 

2,314 

6,086 

4,791 

1,164 

272 

136

1,371

Sept.

157 

153 

151 

149 

149

149 

149 

145 

141 

139

137 

134 

132 

130 

130

128 

128 

128 

128 

130

130 

128 

126 

128 

130

126 

128 

134 

132 

128

Runoff in 

acre feet

15,890 

16,330 

12,930

981,600

11,900 

14,330 

30,700 

137,700 

374,200 

285,100 

71,600 

16,720 

8,090

995,500

r. 10 (7 a.m.) 13,000 sec. -ft.; May 7 (4 a.m.) 9,100 

ay 27 (3 a.m.) 12,300 sec. -ft.; June 9 (4 a.m.) 8,900
TULARE LAKE BASIN

North Fork Kings River near Cliff Camp, Calif.

Location.- Water-stage recorder, lat. 37°00', long. 118°59', in NW£ sec. 12, T. 11 S., R. 

2Y E., at Cliff Camp Bridge, 1 mile northwest of Cliff Camp and 2.3 miles downstream 

from Woodchuck Creek. Datum of gage is 6,143.95 feet above mean sea level, adjustment 

of 1912 (levels by San Joaquin Light & Power Corp.).

Drainage area.- 174 square miles.

Records available.- November 1922 to September 1948. August 1921 to November 1922 at site 

i mile upstream.

Average discharge.- 24 years (1921-32, 1933-35, 1937-48), 349 second-feet.

Extremes.- Maximum discharge during year, 3,720 second-feet May 15 (gage height, 10.9 feet); 

minimum, 2.2 second-feet Jan. 15.

1921-48: 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. No storage or diversion above station.

Cooperation.- Water-stage recorder graph, furnished by San Joaquin Power Division, Pacific 

Gas & Klectric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

3.7 

4.0 

4.4 

4.9 

5.4 

6.0

120

190

298

430

618

794

7.0 

7.5

982

1,180

1,410

1,700

2,050

2,440

2,870

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

iO

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5.3

5.1

5.1

5.3

5.1

5.0

5.0

5.1

5.4

35

36

28

20

20

20

22

26

24

21

20

24

22

20

18

16

15

14

16

53

49

53

Nov.

66

66

53

39

35

21

22

22

19

15

16

14

11

13

15

14

13

14

14

9.4

11

10

8.7

10

11

12

12

15

15

Dec.

16

12

11

13

11

13

12

13

12

12

12

12

12

12

12

11

12

13

15

14

15

15

15

15

15

15

14

14

12

11

11

Jan.

11

12

13

15

16

15

17

30

24

20

18

16

14

14

13

12

12

12

11

10

11

11

12

11

12

14

10

11

10

9.5

9.2

Feb.

9.3

9.6

8.8

8.9

8.8

10

12

13

16

16

16

16

17

18

18

21

27

27

29

30

34

40

34

28

26

24

23

24

24

-

Month

November. ..............................

December ...................................

Calendar year 1947" ......................

March.. .......................... ...

April. .....................................

May. ................................. .....

September. .................................

Water year 1947 48 ......................

Mar.

24

24

22

22

21

20

21

21

23

22

22

22

23

27

32

30

29

32

35

34

39

53

67

62

51

56

72

84

79

83

106

Apr.

146

130

102

87

84

82

77

73

194

361

177

146

157

188

267

281

417

405

416

481

499

469

351

345

516

642

672

581

451

371

-

Secondfoot-days

402

86,852.6

425 7

1 993

' cc: 1

137.2

90,275.9

May

332

396

561

846

1,190

1,590

1,660

1,230

982

974

1,220

1,510

1,930

2,280

2,600

2,740

2,500

1,860

1,030

794

722

944

1,550

1,960

2,250

2,460

2,340

1,960

1,620

1,440

1,140

Maximum

16

.2,400

5.8

2,740

June

1,130

1,290

1,520

1,470

1,010

958

1,340

1,670

1,630

1,440

1,460

1,480

1,280

1,170

1,090

986

864

787

690

659

601

604

546

478

436

396

348

303

291

286

-

Minimum

11

3.7

9 2

a a

332

3.6

3.6

July

228

194

167

143

120

104

91

82

77

72

70

66

58

54

49

45

41

39

38

34

30

27

26

22

22

19

17

16

15

14

13

Aug.

12

12

11

11

11

10

9.8

9.8

9.6

9.4

9.0

8.8

8.5

8.3

7.9

7.6

7.4

7.3

6.9

6.8

6.6

6.5

6.5

6.5

6.5

6.3

6.2

5.9

5.6

5.3

5.1

Mean

13.0

238

4.57

247

Sept.

4.9

4.8

4.8

4.8

4.6

4.6

4.5

4.3

4.2

4.0

4.0

3.9

3.8

3.6

3.6

3.6

3.8

4.2

4.4

4.6

4.8

4.8

4.9

5.0

5.1

5.4

5.6

5.8

5.5

5.3

~

Runoff in 

acre-feet

797

172,300

3 950

272

179,100
TULARE LAKE BASIN 213

North Fork Kings River below Rancherla Creek, Calif.

Location.- Water-stage recorder, lat. 36°56', long. 119°00', in SE£ sec. 34, T. 11 S., R. 

'd'l &.., 1 mile upstream from Balch diversion dam and 1 mile downstream from Rancheria 

Creek. Datum of gage is 4,153.20 feet above mean sea level, adjustment of 1912 (levels 

by San Joaquin Light & Power Corp.).

Drainage area.- 225 square miles.

Kecoras available.- March 1927 to December 1937, January 1939 to September 1948

Average aiscnargeT- 18 years (1927-36, 1939-48), 392 second-feet.

Extremes.- maximum discharge during year, 3,760 second-feet May 15 (gage height, 10.70 

I'eet); minimum dally, 12 second-feet on several days in October and September.

1937-48; 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 periods of Ice effect or no gage-height record, 

wnicn are fair. No storage or diversion above station.

Cooperation - Water-stage recorder graph, furnished by San Joaquin Power Division of 

raciric uas & Electric Co., obtained in connection with a Federal Power Commission 

project.

Rating tables, water year 1947-48, except period of ice effect 

(gage height, In feet, and discharge. In second-feet)

Oct. 29 to Sept. 30

0.9 

1.1 

1.3 

1.6 

1.9

2.3 

2.7 

3.1 

3.5 

4.0

48

 9

95

125

175

4.5

5.0 

5.5 

6.0 

6.5

239

319

419

553

733

7.0 950

8.0 1,540

9.0 2,260

10.0 3,100

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13

13

IS

13

12

12

12

h!2

14

43

51

36

28

26

26

26

29

30

27

25

28

27

25

23

22

21

20

20

51

83

64

Nov.

75

83

75

59

49

37

32

35

33

26

27

25

22

23

27

27

26

26

26

22

2021-

18

19

22

23

24

25

27

29

-

Dec.

28

26

22

22

22

23

22

25

21

22

24

23

23

22

22

22

24

23

28

27

27

25

26

26

26

27

26

26

25

19

22

Jan.

22

24

26

26

27

26

30

45

37

33

30

26

24

24

22

21

21

21

19

18

19

20

21

20

22

25

19

20

21

20

20

Feb.

19

20

18

bl8

bl8

b20

b22

b24

b25

b27

b27

b27

28

30

30

37

45

47

48

48

51

62

54

43

41

41

37

43

39

-

-

Month

December ...................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

September. .................................

Hater year 1947-48 ......................

liar.

42

41

35

34

34

35

32

35

38

35

36

37

37

44

48

49

46

47

55

47

55

79

101

118

79

82

103

123

119

111

141

Apr.

195

189

201

136

128

140

119

123

333

759

329

240

249

280

374

397

567

544

547

612

641

619

459

429

625

786

820

733

579

472

-

Secondfoot-days

746

101,968

395

105,958

May

415

464

640

981

1,350

1,760

1,880

1,430

1,130

1,080

1,370

1,650

2,030

2,340

2,660

2,810

2,680

2,160

1,270

941

838

1,060

1,720

2,130

2,400

2,630

2,480

2,140

1,820

1,730

1,400

Maximum

28

2,560

14

2,810

June

1,330

1,490

1,740

1,710

1,220

1,110

1,550

1,880

1,830

1,640

1,640

1,660

1,480

1,360

1,250

1,120

965

874

773

745

678

670

626

523

477

431

384

341

310

328

-

Minimum

19

12

32

415

12

12

July

265

210

180

160

140

130

120

110

100

95

90

85

80

75

70

65

60

55

55

50

50

46

44

40

38

36

34

32

30

30

28

Aug.

28

27

h25

24

24

24

23

22

21

21

20

19

19

18

18

17

17

17

16

16

16

16

16

16

16

15

15

15

14

14

14

Mean

24.1

279

34 1

13.2

290

Sept.

14

13

13

13

13

13

13

13

13

13

13

13

12

12

12

12

13

13

13

13

13

13

14

14

14

14

14

14

14

14

-

Runoff in 

acre-feet

1,480

202,300

783

210,100

Peak discharge (base, 2,200 sec.-ft.].- May 6 (9 p.m.) 2,470 sec.-ft.; May 15 (9 p.m.) 3,760 sec.- 

ft.; May 26 (9 p.m.) 3,730 sec.-ft.; June 8 (9:30 p.m.) 2,750 sec.-ft.

b Stage-discharge.relation affected by ice.

h Computed from staff-gage reading.

Note.- No gage-height record Oct. 1-7, 9, Jan. 6-28, July 1-31, Aug. 1, 2, 4-11; discharge computed 

on Dasls of records of flow at Balch powerhouse and records for station near Cliff Camp.

889419 O - 50 - 15
214 SAN JOAQUIN RIVER BASIN

SAN JOAQUIN RIVER MAIN STEM 

San Joaquin River above Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°15'00", long. 119°19'10", in NW£ 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 1948.

Average discharge.- 23 years (1925-48, period since diversion began through Ward tunnel), 

1,334 second-feet.

Extremes.- Maximum discharge during year, 8,460 second-feet May 26 (gage height, 14.70 

reet); minimum, 78 second-feet Sept. 30 (gage height, 6.32 feet).

1922-48: 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 partly regulated by Florence Lake (see p.225) and diversions 

through Ward tunnel (see p.227) beginning in 1925.

Cooperation.- Water-stage recorder graph and seven discharge measurements, furnished by 

Southern California Edison Co., obtained in connection with a Federal Power. Commission 

project.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

6.2 74 7.6 333 10.0 1,570 12.5 4,210 

6.5 107 8.0 473 10.5 1,950 13. O 5.00O 

6.7 134 8.5 700 11.0 2,400 13.5 5,910 

7.0 183 9.0 955 11.5 2,920 14.0 6,910 

7.3 249 9.5 1,240 12.0 3,520 

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

94 

94

93 

91 

87

86 

86 

96 

106 

224

343 

270 

210 

201 

218

244 

457 

450 

346 

303

333 

315 

259 

227 

203

195 

191 

189 

210 

365 

333

Nov.

375 

375 

346 

289 

257

221 

185 

193 

185 

178

165 

160 

152 

149 

157

16O 

157 

152 

154 

146

124 

138 

127 

123 

143

146 

152 

152 

157 

163

Dec.

165 

157 

140 

138 

144

143 

146 

134 

138 

124

133 

136 

133 

130 

131

130 

138 

148 

140 

149

152 

143 

137

142 

142

143 

144 

144 

143 

133 

114

Jan.

127 

138 

169 

163 

187

189 

185 

602 

517 

352

289 

239 

221 

201 

193

187 

179 

176 

169 

154

157 

162 

165 

170 

172

174 

143 

130 

151 

146 

144

Feb.

140 

144 

130 

123 

152

160 

152 

165 

183 

230

181 

154 

179 

176 

170

179 

201 

235 

230 

216

214

242 

275 

232 

212

207 

214 

227 

214

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Pe

mbe r ...................................

lendar year 1947 ......................

ary

ember. .................................

ter year 1947-48 ......................

ak discharge (base, 4,600 sec. -ft.).- Ap

sec. -ft.; May 16 (12 p.m.) 7,980 sec. -ft.; M 

6,990 sec. -ft.

Mar.

216 

210 

207 

193 

187

193 

193 

191 

205 

197

193 

189 

218 

297 

303

318 

330 

295 

355 

321

289 

333 

417 

737 

57O

526 

588 

650 

650 

593 

602

Apr.

1

Secondfoot-days

6,919 

5,581 

4,334

284,537

6,351 

5,537 

10,766 

48,430 

120,310 

114,730 

28,223 

5,970 

2,737

359,888

r. 10 (3:30 

ay 26 (11:30

745 

885 

,110 

820 

730

860 

730 

700 

100 

250

670 

240 

160 

080 

290

610 

890 

210 

990 

080

320 

280 

800 

590 

960

500 

430 

510 

050 

840

May

1,600 

1,610 

1,850 

2,450 

3,380

4,370 

1,920 

3,530 

2,730 

2,580

3,050 

3,560 

4,370 

4,860 

5,580

6,260 

6,220 

5,460 

3,270 

2,420

2,040 

2,050 

3,150 

4,530 

5,430

6,380 

6,210 

5,080 

4,140 

3,880 

3,350

Maximum

457 

375 

165

5,480

602 

275 

737 

3,250 

6,380 

5,240 

2,430 

336 

111

6,380

June

3,110 

3,370 

4,120 

4,500 

3,340

3,000 

3,640 

4,340 

5,240 

4,810

4,720 

4,980 

4,590 

4,620 

4,40O

4,260 

3,960 

3,820 

3,400 

3,440

3,340 

3,810 

3,530 

3,440 

3,480

3,460 

3,200 

3,160 

3,090 

2,561}

Minimum

86 

123 

114

85

127 

123 

187 

700 

1,600 

2,560 

349 

115 

80

80

July

2,430 

2,170 

,770 

,510 

,260

,080 

,020 

,020 

,020 

,060

,130 

,050 

994 

900 

885

870 

860 

795 

725 

680

626 

588 

552 

505 

458

431 

399 

372 

362 

352 

349

Aug.

336 

327 

318 

300 

286

267 

254 

242 

225 

214

205 

197 

189 

183 

178

172 

167 

162 

157 

152

146 

143 

142 

138 

136

128 

127 

124 

121 

119 

115

Sept.

Ill 

108 

107 

107 

107

106 

105 

1OO 

97 

94

93 

91 

90 

90

85

84 

83 

83 

83 

84

81 

80 

80 

81 

81

85 

90

87 

84 

80

u Runoff in Mean acre-feet

223 13,720 

186 11,070 

140 8.6OO

78O 564, 4OO

205 12,600 

191 10,980 

347 21,350 

1,614 96,060 

3,881 238,600 

3,824 227,600 

910 55,980 

193 11,840 

91.2 5,430

983 713,800

a.m.) 4,920 se-.-ft.; May 7 (l a.m.) 6.38U 

p.m.) 8,460 sec. -ft.; June 8 (12 p.m.)
SAN JOAQUIN RIVER MAIN STEM 215

San Joaquin River below Kerckhoff powerhouse, Calif.

Location (revised).- Water-stage recorder, lat. 37°04'45", long. 119°33'35", in NW^ sec. 

10, T. lu s., R. 22 E., 1.1 miles downstream from Kerckhoff powerhouse and 1.4 miles 

upstream from Big Sandy Creek. Datum of gage is 563.4 feet above mean sea level 

(levels by Bureau of Reclamation).

Drainage area.- 1,480 square miles.

Hecords available.- December 1936 to December 1937, December 1942 to September 1948.

Extremes.- Maximum discharge during year, 9,880 second-feet. May 27 (gage height, 21.68 

reet); minimum, 72 second-feet Jan. 16.

1936-37, 1942-48: Maximum discharge, 75,000 second-feet Dec. -11, 1937 (gage height, 

46.5 feet), from rating curve extended above 20,000 second-feet on basis of velocityarea studies, computed flow over Kerckhoff Dam, and peak flow of San Joaquin River near 

Friant; minimum, 7 second-feet Nov. 5, 1944.

Remarks.- Records good. Flow regulated by eleven power plants and six reservoirs above 

station with total usable capacity of about 315,000 acre-feet. Earliest storage began 

in 1901 at Crane Valley Reservoir. See records for Florence Lake, Huntington Lake, and 

Shaver Lake. Contents of Crane Valley Reservoir was 24,500 acre-feet on Sept. 30, 

1947, and 38,200 acre-feet on Sept. 30, 1948.

Rating table, water year 1947-48 (gage height. In feet, 

and discharge, In second-feet)

6.0 

6.5 

7.0 

7.5 

8.0 

8.5

118

166

224

294

380

484

9.0

9.5

10.0

10.5

11.0

12.0

604

738

884

1,050

1,220

1,630

13.0

14.0

15.0

16.0

18.0

20.0

2,120 

2,720 

3,440 

4,210 

5,910 

7)900

Discharge, in second-feet, water year October 1947 to'September 1948

Day

1

f.

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

a850

a870

915

882

670

al.100

978

600

972

986

1,030

548

784

1,030

957

994

1,060

1,360

860

997

1,100

1,130

1,030

1,110

884

616

990

1,040

944

1,140

1,090

Nov.

910

709

824

954

880

818

845

664

408

752

678

850

841

770

758

375

834

860

724

702

730

482

502

806

575

942

276

758

593

453

-

Dec.

833

699

886

644

878

608

527

917

779

510

870

644

554

272

1,000

729

562

822

933

584

417

588

842

473

288

774

326

481

798

754

696

Jan.

189

500

455

368

791

464

490

812

970

544

272

659

488

473

617

602

302

220

542

804

783

610

607

690

221

836

888

672

499

502

490

Feb.

154

990

628

722

315

604

522

221

795

41-10

602

548

482

819

268

554

490

641

645

612

564

418

510

676

708

786

638

709

328

-

-

Month

December. ...................................

Calendar year 1947 ......................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

574

584

666

718

680

645

390

448

536

513

593

627

462

558

648

608

744

688

686

549

288

661

560

1,270

1,330

1,030

890

685

1,070

1,110

996

Apr.

1,140

1,320

1,560

1,540

1,230

1,450

1,660

1,040

1,050

5,090

3,010

1,930

1,700

1,460

1,270

1,690

1,940

2,340

2,300

2,450

2,770

2,640

2,270

1,800

2,000

2,690

2,640

2,900

2,690

2,440

-

Secondfoot-days

20,688

542,105

29,396

575,454

May

2,260

1,530

2,370

2,380

3,500

4,700

5,610

3,940

3,110

2,920

3,510

4,010

4,560

5,280

5,630

6,320

7,050

6,320

4,190

3,610

3,030

2,650

3,140

5,170

5,990

6,930

7,440

6,070

4,880

4,300

4,180

Maximum

1,000

5,880

1.19C

7,440

June

3,990

4,360

4,630

5,460

4,060

3,380

4,340

4,570

6,010

5,490

5,330

5,540

4,960

5,130

5,410

5,070

4,920

4,630

4,170

3,910

4,180

4,870

4,510

4,500

4,520

4,350

3,700

3,880

4,230

3,770

-

Minimum

272

272

i""1 - ( 458

154

July

3,470

3,400

2,990

2,460

2,000

1,770

1,460

1,430

1,520

1,080

1,100

1,540

1,590

1,640

1,750

1,810

1,840

1,750

1,540

1,360

1,750

1,350

1,420

1,120

792

1,390

1,270

1,280

1,280

1,140

1,200

Aug.

305

1,500

1,190

1,180

1,150

1,150

758

636

1,260

1,170

1,140

1,020

1,470

577

440

1,060

1,030

965

1,060

963

921

844

1,190

924

1,030

994

1,150

985

800

1,040

1,210'

Mean

952

709

667

1,485

980

1,572

Sept.

1,070

1,120

1,160

1,050

740

772

1,100

1,070

1,110

1,170

880

458

1,010

1,010

1,190

1,030

1,020

868

549

954

1,090

960

1,130

1,070

880

635

1,110

1,100

980

1,110

Runoff in 

acre-feet

41,030

1,075,000

58,310

1,141,000

a No gage-height record; discharge computed on basis of records for Kerckhoff powerhouse.
216 SAN JOAQUIN RIVER MAIN STEM

Mlllerton Lake at Frlant, Calif.

Location.- Water-stage recorder, lat. 37°00', long. 119°42', in SWir sec. 5, T. 11 S., R. 

21 K. , at Friant Dam on San Joaquin River and immediately upstream from Cottonwood 

Creek. Datum of gage is at mean sea level (levels by Bureau of Reclamation).

Drainage area.- 1,633 square miles

Records available.- October 1941 to September 1948.

Extremes.- Maximum contents during year, 473,300 acre-feet June 29. 30 (elevation, 568.1 

feet); minimum, 87,100'acre-feet Oct. 13 (elevation, 442.5 feet).

1941-48: Maximum contents, that of June 29, 30, 1948; minimum recorded, 20,190 

acre-feet Nov. 3, 1943 (elevation, 379.6 feet).

Remarks.- Reservoir is formed by gravity-type concrete dam with spillway near center, 

completed in December 1942. Control valves installed in February 1944, and spillway 

gates installed in November 1947. Capacity, 503,200 acre-feet between elevations 375.4 

feet (invert of river outlet) and 578.0 feet (top of drum-type spillway gates) above 

mean sea level. Millerton Lake is one of the storage units in Central Valley project. 

Records show contents at 12 p.m.

Cooperation.- Gage-height record furinshed by Bureau of Reclamation.

Contents, In thousands of acre-feet, water year October 1947 to Septembe

Dtp

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

98.9

97.3

95.8

94.3

92.3

91.5

90.7

89.3

88.8

88.7

88.7

87.8

87.1

87.3

87.6

88.4

89.0

90.4

91.1

91.5

91.7

91.7

91.9

92.3

92.3

92.2

92.5

93.0

93.3

94.1

94.9

Nov.

95.3

95.3

95.6

96.4

97.3

97.9

98.6

98.8

98.8

99.3

99.6

100.5

101.3

102.0

102.7

102.5

103.2

104.1

104.9

105.4

105.9

105.0

106.1

106.8

107.0

108.1

107.9

108.6

109.0

109.4

-

Dec.

110. 1

110.7

111.8

112.4

113.3

113.9

114.1

115.2

116.0

116.4

117.5

118.1

118.5

118.3

119.7

120.5

120.9

121.9

123.1

123.6

123.8

124.2

125. 2

125.4

125.4

126.4

126.4

126.8

127.6

128.5

129.3

Jan.

129.1

129.3

129.7

'129.7

130.8

131.0

131.4

132.3

133.6

134.0

134.0

134.7

135.1

135.5

135.8

136.2

135.8

135.3

135.3

136.0

136.6

136.9

137.1

137.5

137.1

138.0

138.8

139.3

139.5

139.5

139.3

Feb.

138.6

139.5

139.8

140.2

140.0

140.0

140.2

139.5

140.2

139.8

140.0

140.0

140.0

140.4

140.0

140.0

140.0

140.2

140.4

140.6

140.6

140.4

140.4

140.6

141.1

141.3

141.1

141.1

140.2

-

Mar.

139.8

139.3

138.8

138.4

138.2

137.7

137.1

136.4

135.8

135.1

134.9

134.4

134.0

133.8

133.6

133.6

133.6

133.8

133.6

132.9

131.6

131.0

130.8

132.1

133.6

134.0

133.8

133.1

133.1

133.4

133.1

Apr.

132.9

133.4

134.2

135.1

135.8

137.5

139.3

140.0

141.3

152.6

158.3

161.7

165.0

167.0

167.7

169.2

171.0

173.3

175.3

176.9

179.0

180.8

181.8

182.4

182.9

184.5

185.9

187.5

189.7

192.6

-

May

195.1

195.9

198.1

200.4

203.8

209.8

216.8

220.4

222.2

223.1

224.6

227.6

231.3

236.8

243.5

252.7

262.8

270.2

273.3

275.0

' 276.0

276.3

277.7

283.9

291.9

301.8

313.4

321.6

328.0

333.3

338.3

June

342.5

347.9

353.4

361.6

366.8

370.4

376.5

383.0

392.6

400.1

406.5

413.0

418.1

423.4

429.0

433.9

439.2

443.2

'446.3

449.0

452.2

457.2

461.3

464.5

467.3

469.6

471.0

472.3

473.3

473.3

-

July

472.8

472.8

471.9

470.5

467.7

464.5

460.4

456.2

452.2

447.2

442.3

438.3

434.7

431.7

428.6

426.0

423.4

420.3

417.3

413.8

410.8

407.0

403.5

399.3

_394.2_

390.9

387.2

383.0

379.4

375.3

370.8

Aue364.8

360.8

356.5

351.8

347.5

343.3

337.9

332.6

328.4

324.3

320.2

315.6

312.3

306.9

301.5

297.6

293.7

289.4

285.6

281.5

277.7

273.3

269.9

265.8

262.2

258.6

255.0

251.4

247.6

244.1

240.9

Sept.

238.1

234.6

231.0

227.3

222.8

218.3

214.4

210.7

207.0

203.5

200.4

196.2

193.2

190.5

188.3

185.9

183.4

180.5

177.2

174.8

172.5

170.4

168.4

166.2

163.7

160.5

158.6

156.9

155.0

153.1

-

Monthly elevation and contents, water year October 1947 to September 1948

'Date

Calendar year 1947 .....

Water year 1947-48. ....

Elevation 

(feet)

451.0 

447.4 

455.7 

465.8

- -

470.4 

470.8 

467.6 

491.9 

536.2 

568.1 

544.5 

508.3 

476.4

-

.Contents 

(acre -feet)

101,000 

94,900 

109,400 

129,300

-

139,300 

140,200 

133,100 

192,600 

338,300 

473,300 

370,800 

240,900 

153,100

-

Change in contents 

during month 

(acre-feet)

-6,100 

+14,500 

+19,900

-150,800

+10,000 

+900 

-7,100 

+59,500 

+145,700 

+135,000 

-102,500 

-129,900 

-87,800

+ 52,100
SAN JOAQUIN RIVER MAIN STEM 217

San Joaquin River below Friant, Calif.

Location.- Water-stage recorder, lat. 36°59'04", long. 119°43'24", in SW-Jr sec. 7, T. 11 

S., K. 21 E., 0.5 mile west of Friant, 1.5 miles downstream from Cottonwood Creek, and 

2 miles downstream from Friant Dam. Datum of gage is 294.00 feet above mean sea level 

(levels by Bureau of Reclamation).

Drainage area.- 1,675 square miles.

Kecords available.- October 1938 to September 1948. October 1907 to December 191$ at site 

4.5 miles upstream. December 1913 to September 1938 at site 2.5 miles upstream.

Average discharge.- 41 years (1907-48), 2,341 second-feet, including diversions to Madera 

uanal, i944-4b.

Extremes.- Maximum discharge during year, 4,220 second-feet June 30 (gage height, 7.29 

reet); minimum, 119 second-feet at times Apr. 11-14.

1907-48: Maximum discharge, 77,200 second-feet Dec. 11, 1937 (gage height, 23.8 

feet, site and datum then in use); minimum, 5.5 second-feet Oct. 20, 1941.

Remarks.- Records excellent. Plow regulated by Millerton Lake beginning in 1944 (see 

preceding page) and by other reservoirs described in "Remarks" for San Joaquin River 

below Kerckhoff powerhouse. Diversion for irrigation through Madera Canal, above station, began June 4, 1944, and for water year 1948, airounted to 75,700 acre-feet.

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Jan. 29 Jan. 30 to Sept. 30

2.9 260 3.7 595 4.4 1,060 2.3 117 3.3 415 5 

3.1 325 3.9 710 4.6 1,220 2.5 158 3.6 565 5 

3.3 400 4.1 840 5.0 1,56O 2.7 204 3.9 745 6 

3.5 490 4.2 910 5.4 1,940 2.9 260 4.3 1,020 

3.1 330 4.7 1,350

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

,800 

,720 

,600 

,600 

,590

,460 

,360 

,300 

,220 

,060

985 

985 

978 

978 

722

562 

562 

568 

568 

662

868

1,090 

928 

775 

775

768 

723 

686 

686 

692 

692

Nov.

692 

692 

569 

440 

440

432 

422 

418 

418 

418

418 

392 

372 

372 

372

372 

372 

376 

376 

376

376 

376 

376 

376 

376

350 

318 

332 

332 

336

Dec.

336 

336 

332 

314 

294

311 

311 

311 

314 

300

297 

297 

297 

297 

297

297 

300 

297 

297 

297

297 

297 

290 

272 

272

272 

272 

272 

272 

272 

272

Jan.

272 

272 

272 

272 

272

272 

272 

272 

272 

272

275 

275 

275 

275 

321

409 

454 

454 

454 

454

454 

454 

436 

364 

364

364 

364 

364 

388 

495 

516

Feb.

516 

516 

516 

516 

516

516 

516 

516 

516 

516

516 

516 

516 

516 

516

516

516 

516 

516 

516

516 

516 

516 

516 

526

560 

626 

626 

626

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ...................................

lendar year 1947 

ary

1. .....................................

St.. ................. .............:...

ter year 1947-48 ...............

Mar.

650 

752 

758 

738 

700

700 

700 

70O 

700 

700

700 

7OO 

700 

693 

693

693 

693 

693 

790 

938

938 

938 

769 

656 

656

838 

1,050 

1,050 

1,050 

1,050 

1,120

Apr.

1 

1 

1 

1

1 

1 

1 

1

1 

1

1 

1

1

1 

1 

1 

1

Secondfoot-days

30,963 

12,287 

9,192

558,864

10,929 

15,348 

24,506 

32,623 

58,818 

61,950 

92,310 

86,610 

71,770

507,306

,150 

,140 

,140 

,140 

956

700 

706 

712 

622 

274

119 

157 

119 

454 

842

960 

,040 

,040 

,220 

,620

,680 

,680 

,670 

,660 

,660

,780 

,880 

,960 

,590 

952

May

968 

1,080 

1,040 

1,130 

1,450

1,560 

1,750 

2,050 

2,050 

2,220

2,360 

2,370 

2,370 

2,400 

2,140

1,540 

1,880 

2,580 

2,590 

2,540

2,380 

_ 2,310 

2,310 

2,010 

1,820

1,830 

1,840 

1,700 

1,500 

1,520 

1,530

Maximum

1^800 

692 

336

3,020

516 

626 

1,120 

1,960 

2,590 

3,330 

3,300 

3,080 

2,920

3,330

June

1,530 

1,530 

1,530 

1,320 

1,130

1,130 

1,140 

1,150 

1,160 

1,370

1,870 

2,090 

2,100 

2,180 

2,310

2,310 

2,330 

2,330 

2,330 

2,340

2,200 

2,100 

2,310 

2,600 

2,680

2,680 

2,680 

2,930 

3,260 

3,330

Minimum

562 

318 

272

272

272 

516 

650 

119 

968 

1,130 

2,720 

2,430 

1,990

119

July

3,240 

3,130 

2,980 

2,980 

2,970

3,OOO 

3,180 

3,300 

3,300 

3,290

3,290 

3,130 

2,980 

2,940 

2,850

2,810 

2,810 

2,810 

2,760 

2,720

2,810 

2,90.0 

2,890 

2,890 

2,880

2,880 

2,870 

2,870 

2,860 

2,920 

3,070

.2 1,830 

.8 2,450 

.6 3,360

Aug.

3,080 

3,070 

3,060 

3,060 

3,050

3,040 

3,020 

3,020 

3,010 

2,930

2,900 

2,9OO 

2,890 

2,890 

2,890

2,840 

2,780 

2,740 

2,690 

2,680

2,670 

2,660 

2,600 

2,540 

2,550

2,540 

2,540 

2,530 

2,530 

2,480 

2,430

Mean

999 

410 

297

1,531

353 

529 

791 

1,087 

1,897 

2,065 

2,978 

2,794 

2,392

1,386

Sept.

2,410 

2,470 

2,750 

2,760 

2,750

2,740 

2,820 

2,920 

2,910 

2,740

2,580 

2,570 

2,490 

2,330 

2,250

2,240 

2,260 

2,320 

2,310 

2,230

2, -120 

2,110 

2,110 

2,140 

2,180

2,180 

2,110 

1,990 

1,990 

1,990

Runoff in 

acre feet

61,410 

24,370 

18,230

1,108,000

21,680 

30,440 

48,610 

64,710 

116,700 

122,900 

183,100 

171,800 

142,400

1,006,OOO
218 SAN JOAQUIN RIVER MAIN STEM

San Joaquin River near Mendota) Calif.

Location.- Water-stage recorder, lat. 36°48'35", long. 120°22'35", in Sj sec. 7, T. 13 

S. , R. IS E., 2.5 miles downstream from Mendota" Dam and 4 miles north of Mendota. 

Datum of gage is 142.53 feet above mean sea level (levels by Bureau of Reclamation).

Drainage area.- 4,310 square miles.

Records available.- October 1939 to September 1948.

Extremes.- Maximum discharge during year, 813 second-feet April 30 (gage height, 3.73 feet); 

minimum, 8.1 second-feet Dec. 29.

1944-48: Maximum discharge, 6,440 second-feet June 19, 1945; maximum gage height, 

10.12 feet Feb. 8, 1945; minimum discharge, that of Dec, 29, 1947.

Remarks.- Records fair. Flow regulated by reservoirs and power plants above station 

(see "Remarks" for stations upstream). Many diversions above station for irrigation.

Cooperation.- Twenty-seven discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

199

188

188

190

190

188

182

157

154

152

146

144

134

131

129

127

124

119

117

111

104

102

102

109

111

115

117

122

122

111

111

Nov.

109

111

112

116

121

121

119

119

116

116

116

116

114

112

110

108

105

103

103

101

99

99

99

95

93

91

89

81

79

Dec.

75

160

175

170

160

151

91

39

93

97

20

16

17

17

20

10

8.8

8.8

9.5

11

12

11

9.5

10

10

Jan.

11

11

12

12

14

16

16

14

14

14

16

16

16

16

16

16

16

16

30

87

116

99

75

70

58

57

55

Feb.

55

60

87

85

93

97

83

81

79

81

79

73

75

81

87

87

87

87

83

79

75

75

9

7

3

3

5

5

5

-

Month

December ...................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

September ..................................

Water year 1947-48 ......................

Mar.

77

79

85

85

87

89

83

77

57

49

27

23

24

23

24

23

23

24

29

46

81

83

97

95

105

144

139

108

108

130

165

Apr.

172

178

158

139

137

114

119

134

114

234

528

539

232

121

66

58

57

60

58

57

70

101

121

134

134

134

146

158

134

459

-

Secondfoot-days

4,296

3,158

1,564.6

130,826.6

2,296

2,289

9,882

69,826.6.

May

352

75

77

116

132

132

134

151

170

198

212

252

268

270

270

294

318

321

315

300

306

297

265

268

265

265

265

250

240

240

238

Maximum

199

121

175

1,220

97

352

393

539

June

205

188

188

185

180

180

175

175

172

165

175

190

192

200

210

242

252

258

258

258

258

265

282

288

306

348

375

372

381

411

~

Minimum

102

79

8.8

8.8

303

8.8

July

411

414

414

411

402

402

402

381

372

411

472

497

476

441

441

466

469

469

411

387

393

408

408

405

Aug.

399

399

396

396

408

427

427

430

430

411

408

411

414

420

438

444

424

390

357

381

402

399

396

396

Mean

139

105

50.5

358

36.9

79.2

73.8

162

234

244

329

191

Sept.

393

387

384

378

372

363

354

339

336

333

318

315

315

315

318

318

315

318

315

312

306

303

306

"

Runoff in 

ao re-feet

3,100

259,500

19,600

138,500
SAN JOAQDIN RIVER MAIN STEM 219

San Joaquin River near Dos Palos, Calif.

Location.- Water-stage recorder, lat. 36°59'40", long. 120°30'00", in N| sec. 12, T. 11 S., 

H. 13 K., 0.7 mile downstream from head of Temple Slough and 7 miles east of Dos Palos. 

Datum of gage is 116.5 feet above mean sea level (Corps of Engineers bench mark).

Drainage area.- 5,630 square miles.

Records available.- October 1940 to September 1948.

Extremes.- Maximum discharge during year, 498 second-feet April 12 (gage height 3.32 feet); 

no flow Feb. 9 to Mar. 8, Mar. 11, 12.

1944-48: Maximum discharge, 5,630 second-feet Feb. 9, 1945 (gage height, 11.97 feet, 

site then in use); no flow July 27, 28, 1945, Nov. 22-27, 1946, Feb. 9 to Mar. 8, Mar. 

11, 12, 1948.

Remarks.- Records fair. Some regulation by reservoirs and power plants above station. 

Bee Remarks" for stations upstream. Practically entire flow of river and tributaries 

diverted during irrigation season.

Cooperation.- 14 discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

6

4

b

6

7

8

9

10

11

13

15

16

21

26

27

29

Oct.

1.7

1.7

1.7

1.5

1.5

1.4

1.3

1.2

1.1

1.2

1.1

.8

. 7

.6

.5

.5

.4

.4

.4

.4

.4

.4

.3

.4

.3

.3

.4

.4

.4

.4

.4

Nov.

0.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

.3

.3

.3

.4

.4

.4

.4.4-

.4

-

Dec.

0.4

.4

.4

.5

.6

.6

.5

.4

.4

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

3.5

14

14

13

17

21

21

21

20

20

Jan.

20

21

22

22

22

22

23

24

24

24

23

23

22

22

22

22

10

.6

.4

.3

.2

.4

.6

.6

.6

.6

.5

.4

.4

.4

.3

Feb.

0.2

.2

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

_

-

Month

December. ...................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

0

0

0

0

0

0

0

0

.2

.1

0

0

.1

.2

.2

.4

.4

.4

.4

.6

.6

.6

.6

.8

.7

.7

.9

.9

.9

1.1

1.1

Apr.

1.3

1.7

1.8

1.4

1.3

1.3

1.1

.9

1.4

33

240

454

394

138

52

4.3

1.1

.8

,8

.8

.8

.7

.7

.7

.8

.8

.9

1.3

1.4

16

Secondfoot'-days

170.7

66,243.3

374.3

1.0

1,355.1

612.3

95.4

185,5

111.2

109.6

3,061.0

May

349

173

19

1.4

1.1

.9

.8

.7

.9

1.2

1.4

1.8

2.4

2.9

3.0

-'3.2

3.8

4.6

3.3

3.2

3.2

3.3

3.3

3.3

3.3

3.2

3.2

3.2

2.9

2.9

2.9

Maximum

21

1,340

24

.2

1.1

454

349

11

8.5

5.4

32 .

454

June

2.5

2.4

2.2

2.1

2.1

1.9

1.9

1.9

1.9

1.8

1.9

2.1

11

2.2

2.4

2.4

2.5

2.9

3.2

3.0

3.2

3.2

-3.2

3.3

3.5

4.0

4.8

5.1

5.1

5.7

Minimum

.1

.1

.2

0

0 .'i

.7

1.8

4.6

2.1

2.1

0

July

6.6

6.6

6.6

6.6

6.6

6.2

6.2

6.2

5.4

5.4

5.9

8.5

8.5

7.3

5.9

5.9

6.6

7.0

7.0

6.2

5.7

5.4

5.1

4.8

5.1

4.8

4.8

4.8

4.6

4.6

4.6

Aug.

4.6

4.0

4.0

4.3

4.6

4.S

5.1

5.4

5.1

5.1

4.6

4.6

4.6

3.5

2.1

2.2

2.4

2.5

^.7

3.0

3.2

3.0

3.0

3.0

8.7

2.7

2.5

2.9

3.0

3.0

3.0

Mean

5.51

181

12.1

.03

.38

45.2

19.8

3..18

5.98;

3.59

3.65

8.36

Sept.

3.0

3.0

2.9

2.9

2.9

2.9

2.9

2.7

2.5

2.5

2.5

2.5

32

8.0

2.7

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2-

2.1

2.2

2.2

-

Runoff in 

acre-feet

339

131,400

742

2.0

24

2,690

1,210

189

368

221,

217

6,070
SAN JOAQUIN RIVER MAIN STEM

San Joaquin Elver near El Nido, Calif.

Location.- Water-stage recorder, lat. 37°06'45", long. 120°35'20", in NE£ sec. 31, T. 9 

t>., K. 13 E., on Chamberlain Slough 100 feet downstream from head, 5 miles southwest of 

El Nido. Datum of gage is 99.14 feet above mean sea level (Bureau of Reclamation bench 

mark). Prior to Nov. 4, at site 70 feet upstream at datum 1.00 foot higher.

Drainage area.- 6,940 square miles.

Records available.- October 1939 to September 1948.

Extremes.- Maximum discharge during year, 281 second-feet April 13 (gage height, 3.36 

feet); no flow during several months (result of irrigation operations).

1944-48: Maximum discharge, 3,120 second-feet Feb. 9, 1945 (gage height, 9.84 feet); 

no flow at times (result of irrigation operations).

Remarks.- Records fair. Some regulation by reservoirs and power plants above station. See 

"Remarks" for stations upstream. Practically entire flow of river and tributaries diverted during irrigation season. Records show flow in main channel of San Joaquin River 

only and do not include flow in sloughs. Same recorder used for Chamberlain Slough near 

El Nido. For records of flow in Chamberlain Slough see p. 245. During period of high 

 water, some flow bypasses this station through Mariposa Slough. No flow in Mariposa 

slough during water year 1947-48.

Cooperation.- Nineteen discharge measurements furnished by Bureau of Reclamation. 

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17ia

19

20

21

22

23

24

25

26

27

29

30

Oct.

0.5

1.0

3.4

3.7

3.1

1.3

1.0

1.3

1.3

Z.Z

4.3 4'.9

4.0

2.2

1.3

1.3

1.9

1.6

.7

.3

.1

0

0

0

0

0

0

0

0

o*o

Nov.

"

Dec.

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

ao

a3.o

33.5

a4.0

4.2

4.6

5.1

6.9

2.8

Jan.

3.2

2.7

3.0

2.8

2.8

3.0

3.4

3.9

3.9

3.2

3.7

4.0

4.0

4.0

3.9

4.0

4.0

2.2

0

0

o

o

0

0

0

0

0

0

0

0

o

Feb.

-

-

Month

December. ..................................

Calendar year 1947 ......................

Janu 

Februarv. ............................ .

March. ."! ...................................

April . . ... ...

May.

July 

Augu 

September. .................................

Hater year 1947-48 ......................

Mar. Apr.

0

0

0

0

0

o

0

0

0

o

31

212

257

121

47

17

5.3

1.4

.1

0

0

0

0

0

o

0

0

0

0

.8

-

Secondroot-days

34.1

42,371.0

61.7

281.0

39.1 

21.4 

25.1

1,204.8

May

71

166

32

7.2

1.2

0

0

O

0

0

o

0

0

0

o

0

o

o

0

0

0

0

0

0

o

.4

0

.8

1.8

.6

 O

Maximum

6.9

851

4.0

166

4.6 

3.5 

3.7

257

June

9-1

.7

0

0

O

0

0

0

0

o

0

0

1.9

1.0

1.5

.8

O

0

0

0

, 9

o

0

o

0

o

0

o

.1

1.4

Minimum

0

0

0

o

0 

0 

o

0

July

0.4

1.8

5.7

3.4

2.8

3.5

3.2

2.7

2.1

2.1

1.5

.1

0

.1

.2

0

0

1.2

4.6

1.7

.4

.4

.4

.2

0

.3

1.7

.6

0

O

o

Aug.

0.2

3.5

2.2

.1

0

O

0

o

0

0

0

o

0

o

0

0

1.4

2.7

1.9

1.0

.9

.1

1.7

.8

2.1

2.8

0

0

0

0

0

Mean

1.10

116

1.99

9.06

1.26 

.69 

.84

3.29

Sept.

o

o

0

o

0

o

0

0

0

0

0

0

0

0

1.1

1.5

1.2

0

1.0

2.1

1.4

3.7

2.7

2.5

1.8

1.9

0

1.0

Runoff in 

acre feet

84,040

122

557

78 

42 

50

2,390

a Ho gage-height record; discharge interpolated.
SAN JOAQUIN RIVER MAIN STEM 221

San Joaquin River at Fremont Ford Bridge, Calif.

Location.- Water-stage recorder, lat. 37°19', long 120°56', in Orestimba Grant, at Fremont Ford Bridge, Merced County, 2 miles downstream from Salt Slough, 5 miles west of 

Stevinson, and 5.7 miles upstream from Merced River.- Datum of gage is at mean sea 

level, unadjusted.

Drainage area.- 8,090 square miles,

Records available - October 1944 to September 194&. February 1937 to September 1948 in 

reports or Division of Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 718 second-feet April 13 (gage height, 61.51 

I'eetj; minimum, 41 second-feet Mar. 11.

1944-48: Maximum discharge, 4,140 second-feet Feb. 12, 1945 (gage height, 68.60 

feet); minimum, that of Mar. 11, 1948.

Remarks.- Records fair. Some regulation by reservoirs and power plants above station. 

See "^Remarks" for stations upstream. Practically entire flow of river and tributaries 

diverted during irrigation season; low flows comprised mainly of'return water. During 

periods of high flow, some water bypasses this station through Mud Slough.

Cooperation.- Twelve discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

105

105

105

111

118

112

118

164

126

112

105

101

92

87

85

84

81

79

73

75

73

65

63

59

57

56

57

56

58

59

62

Nov.

67

68

73

80

81

89

89

78

76

78

79

87

87

81

83

85

87

91

87

85

84

85

85

87

87

89

90

92

94

92

-

Dec.

92

126

122

120

104

98

99

99

100

105

101

100

112

121

117

103

92

103

108

92

85

83

79

75

71

69

73

80

90

92

90

Jan.

90

90

84

76

78

139

146

14a

182

202

197

197

197

192

177

164

154

146

140

132

124

115

107

101

99

96

92

89

80

78

75

Feb.

69

67

66

66

68

69

69

68

67

73

72

68

65

67

67

67

66

65

64

64

60

58

60

57

52

50

49

49

49

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1947 ..................... .

January ....................................

February. ....................... .........

March. .....................................

April.. ....................................

May........................................

June .......................................

July .......................................

August .....................................

September . .................................

Water year 1947-48 ......................

Mar.

47

46

47

47

47

45

43

42

44

43

42

44

46

52

56

59

63

58

59

60

60

58

57

62

63

99

159

128

104

94

85

Apr.

72

65

68

69

74

80

98

121

136

136

178

533

694

613

493

319

224

174

145

122

112

95

87

80

76

69

67

71

80

99

Secondfoot-days

2,703

2,516

3,001

126,776

3,987

1,831

1 959

5^250

4,601

7,215

3 149

4^831

7,856

48,899

May

145

138

201

228

192

166

136

112

105

104

100

94

95

95

94

91

86

90

92

100

130

172

204

204

194

195

194

178

192

304

270

Maximum

164

94

126

1,920

202

73

159

694

270

440

153

392

348

694

June

404

440

392

365

363

416

413

354

287

291

343

334

256

219

185

156

150

136

127,

139

177

208

185

153

128

126

117

118

121

112

Minimum

56

67

6?

56

7 C

4S

4!

6E

86

112

8"

17C

42

July

107

117

101

98

104

112

132

153

121

112

105

101

104

104

104

99

95

95

92

94

92

92

91

90

92

94

90

90

87

91

90

Aug.

87

89

90

98

91

90

91

94

98

105

111

104

100

103

108

115

107

120

121

110

112

133

136

154

172

390

392

343

328

326

313

Mean

87.2

83.9

96.8

347

129

63.1

63.2

175

148

240

102

156

262

134

Sept.

301

283

348

344

285

277

256

258

267

242

206

185

174

170

178

192

204

29°

315

291

297

322

305

273

260

269

279

277

260

246

Runoff in 

acre feet

5,360

4 990

5)950

251,400

7,910

3,630

3,890

10,410

9,130

14,310

6,250

is| 580

96,990
222 SAN JOAQUIN RIVER MAIN STEM

San Joaquin River near Newman, Calif.

Location.- Water-stage recorder, lat 37°21'02", long. 120°S8'34", in SW£ sec. 3, T. 7 S., 

K. y K., at bridge on Hills Ferry road, 300 feet downstream from Merced River and 3.5 

miles northeast of Newman. Datum of gage is 51.0 feet above datum of Corps of Enginners.

Drainage area.- 9,990 square miles.

Records available.- April 1912 to September 1948. Prior to Oct. 1, 1937, and subsequent 

to Oct. i, 1943, flow that bypassed station at discharges above about 9,000 second-feet 

not included in records.

Average discharge.- 36 years, 2,449 second-feet.

Extremes.- Maximum discharge during year, 3,580 second-feet June 11 (gage height, 8.12 feet) 

minimum, 129 second-feet Mar. 2, 8 (gage height, 1.18 feet).

1912-48: Maximum discharge, 33,000 second-feet Mar. 7, 1938 (gage height, 18.50fe*): 

minimum, 15 second-feat Aug. 9, 10, 1924.

Remarks.- Records good. Practically entire flow of river and tributaries diverted during 

irrigation season; low flows comprised mainly of return water. See record for Merced 

River Slough which shows flow bypassing station.

Cooperation.- Thirteen discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

6

11

16

21

26

28

Oct.

236

245

248

233

233

239

279

260

254

227

227

230

221

a205

a2OO

a!95

a!95

a200

Nov.

a210

a215

218

224

227

236

245

239

236

236

236

239

245

245

251

254

260

257

254

260

266

266

266

266

266

266 

266

266

266

-

Dec.

270

289

302

302

286

273

276

270

270

276

270

266

270

286

282

270

257

263

273

266

251

242

236

230

224

221

224 

233

239

245

248

Jan.

245

245

242

230

230

266

305

318

348

381

381

381

384

384

371

361

348

538

325

312

299

286

270

251

245

242

233 

218

212

203

2OO

Feb.

202

203

20C

134

203

218

22]

224

224

227

227

221

218

218

221

218

218

218

218

215

212

206

206

194

179

164

167 

162

167

-

-

Month

December. ...................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

July. ......................................

September. .................................

Water year 1947-48 ......................

Mar.

164

139

150

145

150

156

145

134

150

170

170

173

182

203

212

227

233

233

230

230

224

215

215

227

230

279

398 

345

308

282

263

Apr.

248

233

230

233

239

248

279

328

342

338

371

740

936

860

764

588

472

404

358

322

289

270

251

248

233

212

197 

200

266

325

-

Secondfoot-days

7,423

8,110

203,265

14,301

176,638

May

440

626

792

752

716

665

602

,533

502

461

421

401

378-

358

361

351

338

324

368

411

434

434

465

492

482

461

455 

448

475

1,550

2,480

Maximum

266

302

2,230

227

2,480

672

540

564

3,54®

June

2,800

2,880

2,700

2,560

2,790

3,280

3,200

2,810

2,790

3,240

3,540

3,510

3,150

2,920

2,650

2,450

2,250

2,170

2,080'

1,990

1,840

1,670

1,520

1,480

1,390

1,280

1,140 

1,060

958

780

Minimum

195

210

221

195

200

162

325

197

384

134

July

672

581

506

502

499

438

398

394

335

322

299

299

289

292

282

270

279

292

276

260

236

227

206

197

218 

230

233

233

239

Aug.

266

273

260

242

245

248

266

279

270

270

276

279

315

308

299

295

276

279

312

338

335

468

540- 

499

509

519

489

Mean

229

247

262

557

292

206

212

580

2,296

325

327

477

483

Sept.

519

485

475

431

38«

533

519

482

526

Runoff in 

acre- feet

14,090

14,720

16,090

403,200

17,960

11,830

13,060

21,870

35,660

20,000

20,100

28,370

350,400

a No gage-height record," discharge computed on basis of recorded range In stage and records for 

Merced River near Stevinson.
SAN JOAQUIN RIVER MAIN STEM 223

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 3.4 miles 

northeast of Vernalis, San Joaquin County. Datum of gage is 8.4 feet above datum of 

_Corps of Engineers.

Drainage area.- 14,010 square miles.

Records available.- July 1922 to September 1948 (1922-23, 1925-29, low-water records 

only).

Average discharge.- 19 years (1929-48), 5,224 second-feet.

Extremes.- Maximum discharge during jear, 11,700 second-feet June 13 (gage height, 16.39 

reet); minimum, 313 second-feet Mar. 8.

1922-48: 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 except those for periods of doubtful gage-height record, which are 

fair. Practically entire flow of river and tributaries diverted during irrigation 

season; low flows comprised mainly of return water.

Cooperation.- Twelve discharge measurements furnished by Bureau of Reclamation. 

Revisions (water -years).- W 841, W 881: 1936. W 931: 1940.

Discharge, in seccnd-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

dl,270

dl,450

1,370

1,300

1,290

1,260

1,180

1,250

1,330

1,420

1,460

1,410

1,330

1,230

1,270

1,330

1,330

1,330

1,270

1,170

1,110

1,230

1,320

1,350

1,360

1,370

1,350

1,270

1,290

1,380

1,450

Nov.

,470

,500

,710

,660

,750

,810

,850

,900

,910

,820

,650

,730

,720

,870

,960

,990

,940

,740

,890

,960

,990

,020

,850

,730

,620

,640

,670

,640

,600

,590

-

Dec.

,590

,520

,540

,600

,640

,730

,820

,680

,570

,740

,970

,950

,840

,820

,670

,570

,730

,920

,820

,870

,020

,750

,600

,660

,660

,570

,520

,480

,510

,520

,660

Jan.

1,830

1,830

1,570

1,540

1,490

1,360

1,400

1,440

1,490

1,480

1,450

1,430

1,350

1,380

1,390

1,390

1,380

1,360

1,310

1,170

1,190

1,290

1,320

1,290

1,320

1,190

1,060

1,170

1,310

1,360

1.J560

Feb.

1,290

1,210

990

980

1,050

1,090

1,030

945

895

875

885

900

835

800

780

758

750

754

742

722

694

670

686

634

610

560

575

606

654

-

-

Month

October. ...................................

November. ........................ .........

December. ..................................

Calendar year 1947 ......................

January. ...................................

February ........................... .......

March. ......................................

April.... ..................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

578

453

388

380

352

331

328

324

388

372

345

360

390

511

575

614

662

682

690

714

714

706

710

726

750

920

1,100

1,010

935

830

726

Apr.

682

658

682

698

730

758

785

855

835

825

805

855

d990

dl,140

dl,210

dl,210

1,020

895

805

1,270

2,300

2,370

2,030

1,710

2,820

2,680

2,310

2,300

2,450

3,110

-

Secondfoot-days

40,730

53,180

52,540

572,661

42 , 900

23,970

18,564

41,788

155,020

258,170

41,175

22,479

32,630

783,146

May

3,710

3,680

3,850

3,930

3,900

3,680

3,210

4,080

4,700

4,300

3,660

3,360

3,230

3,290

3,640

4,300

4,890

5,660

6,540

6,920

6,810

6,230

5,330

4,380

4,020

4,970

5,830

6,820

8,570

8,440

9,090

Maximum

1,460

2,020

2,020

3,480

1,830

1,290

1,100

3,110

9,090

11,600

4,290

98b

1,590

11,600

June

9,940

9,950

9,790

10,100

10,300

10,800

11,000

10,100

8,920

8,680

9,860

10,800

11,600

11,600

11,000

10,800

10,700

10,100

8,510

7,350

5,610

5,180

5,170

5,270

5,700

5,970

6,540

6,040

5,620

5,170

-

Minimum

1,110

1,470

1,480

453

1,060

560

324

658

3,210

5,170

606

572

860

324

July

4,290

3,730

3,090

2,820

2,580

2,180

1,810

1,450

1,270

1,160

1,120

1,080

1,020

965

910

845

810

835

830

825

775

746

690

678

690

738

718

674

606

606

634

Aug.

642

666

650

630

614

582

578

630

670

626

600

582

572

600

618

674

698

722

726

790

766

758

850

875

850

835

870

d910

d940

d970

d985

Mean

1,314

1,773

1,695

1,569

1,384

827

599

1,393

5,001

8,606

1,328

725

1,088

2,140

Sept.

h980

d990

d975

d970

d970

d970

d960

d950

950

965

915

860

915

885

880

955

970

dl,000

dl,050

dl,100

dl,080

dl,060

dl,050

hi, 110

dl,300

dl.500

1,580

1,580

1,570

1,590

-

Runoff in 

acre-feet

80,790

105,500

104,200

1,136,000

85,090

47,540

36,820

82,890

307,500

512,100

81,670

44,590

64,720

1,553,000

d Doubtful gage-height record; discharge computed on basis of records for upstream gaging stations. 

h Computed from staff-gage reading.
224 SAN JOAQOIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Florence Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°17', long. 118°58', in SE£ sec. 36, T. 7 S., R.

 y/ K., in gatehouse of Ward tunnel intake, near dam on South Fork 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 1948.

Extremes.- Maximum contents during year, 64,000 acre-feet July 18, 19; maximum elevation,

 77327706 feet July 19; minimum contents, 173 acre-feet Jan. 27, Feb. 1, 3, 4; minimum 

elevation, 7,223.61 feet Feb. 3.

1925-48: Maximum contents,.65 ,700 acre-feet July 16, 1935 (elevation, 7,328.8 

feet); no available contents Oct. 2-4, 1926, Nov. 30 to Dec. 2, 1927.

Remarks.- Lake is formed by multiple-arch concrete dam; storage began in April 1925. Ca-

 pacity, 64,400 acre-feet between 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. 

Additional storage of 168 acre-feet is not available for diversion. Water is diverted 

through Ward tunnel to Huntington Lake and used for power development in Big Creek 

plants. Records show contents at 1? p.m., all of which is available for diversion.

Cooperation.- Record of contents, furnished by Southern California Edison Co., obtained in 

connection with a Federal Power Commission project.

Contents, In acre-feet, water year October 1947 to September 1948

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.

1,540

847

391

254

233

225

220

217

252

361

480

367

327

343

366

405

450

482

506

540

571

592

604

609

610

612

613

620

665

709

761

Nov.

838

901

949

980

628

317

263

249

230

235

229

219

224

229

228

228

226

217

207

201

207

200

199

207

208

208

207

208

210

208

-

Dec.

204

198

196

199

205

208

204

203

201

199

202

202

202

202

201

199

199

200

203

202

201

201

200

199

199

198

199

197

195

190

190

Jan.

193

195

197

200

199

196

209

210

202

199

193

192

191

188

188

187

186

184

182

182

183

187

185

185

183

176

173

178

177

177

175

Feb.

1 3

1 4

1 3

1 3

1 6

1 7

1 8

183

190

191

191

190

189

188

186

188

190

191

191

191

194

196

191

191

191

189

188

186

189

_

-

Mar.

194

190

188

188

191

188

188

188

188

188

188

186

185

196

204

203

211

225

222

221

227

236

235

223

239

257

269

270

258

253

266

Apr.

285

279

269

263

258

269

273

263

387

397

363

359

354

374

421

454

533

527

520

549

538

472

410

411

509

590

593

531

467

429

-

Hay

406

454

596

862

1,320

1,970

2,540

2,710

2,700

2,690

2,780

3,250

4,140

5,350

6,810

8,520

10,500

11,400

11,500

10,700

9,600

8,930

8,760

9,780

11,600

14,100

16,700

19,100

20,600

21,900

22,700

June

23,400

24,500

25,800

27,100

27,900

28,500

29,400

31,100

33,000

34,700

36,600

38,700

40,800

42,700

44,600

46,400

47,900

49,300

50,400

51,700

53,200

54,600

55,800

56,900

57,900

58,600

59,200

59,900

60,500

60,700

-

July

61,000

61,300

61,500

61,600

61,800

62,200

62,500

62,800

63,200

63,600

63,900

64,000

63,900

63,800

63,700

63,700

63,800

63,900

64,000

63,900

63,900

63,800

63,600

63,400

63,100

62.800

62,500

62,100

61,800

61,300

60,600

Aug.

60,000

59,300

58,700

58,000

=7,400

56,700

55,900

55,100

54,300

53,500

52,600

51,800

51,000

50,600

50,700

50,300

49,400

48,500

47,600

46,600

45,500

44,40O

43,300

42,200

41,000

39,900

39,000

38,000

37,100

36,100

35,200

Sept.

34,400

33,600

32,900

32,200

31,700

31,200

30,800

30,300

29 , 900

29,400

29,000

28,500

28,100

27,600

27,200

26,600

26,100

25,600

25,000

24,500

23,900

23,400

22,900

22,300

21,800

21,200

20,700

20,200

19,600

19,000

-

ater ye October 1947 to Septembe

Date

Calendar year 1947....

Aug 31

Water year 1947-48. . . .

Elevation 

(feet)

-

-

Contents 

(acre-feet)

-

-

Change In contents 

during month 

(acre-feet)

-101

+16,700
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 225

South Fork San Joaquin River near Florence Lake, Calif.

Location.- Water-stage recordei, Parshall flume, and concrete control, lat. 37°16'20", 

long. 118°57'50", in SE^ 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 1948.

Average discharge.- 25 years (1922-31, 1932-48), 294 second-feet, combined flow of South 

Fork San Joaquin River and Ward tunnel at intake .-

Extremes.- Maximum discharge during year, 4.5 second-feet Apr. 9 (gage height, 9.20 feet); 

no flow at times November to March.

1921-48: Maximum discharge., 4,320 second-feet June 6, 1940 (gage height, 15.38 

feet); no flow at times.

Remarks - Records good. Flow regulated by Florence Lake beginning in 1925 (see preceding 

page) and by diversion into Ward tunnel (see following page).

Cooperation.- Water-stage recorder graph and several discharge measurements, furnished by 

southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

7.82 

7.9

1.1 

1.5

1.8 

2.6 

3.6 

4.5

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.1

3.0

2.9

2.8

2.6

2.6

2.6

2.5

2.6

3.0

2.7

3.0

3.0

3.0

2.9

2.8

2.8

2.8

3.0

3.3

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.4

2.8

2.2

1.1

Nov.

0.2

.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

Dec. Jan.

o

0

0

0

0

0

.2.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1.1

0

0

0

0

0

0

0

-

-

Month

October ....................................

November. ..................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1

0

0

0

0

0

0

.1

.1.1.1

.1

.1

.1.1

.1

.2

Apr.

0.2

.1

.1

.1

.1

.1

.1

.1

1.0

.6

.2

.2

.2

.3

.4

.4

.5

.3

.3

.3

.2

.2

.1

.1

.1

.1

.1

.1

.2

.1

-

Secondfoot-days

88.9

.4

0

528 . 8

.4

.2

1.3

35 . 8

59 . 3

89 . 7

111.9

117.1

511.9

May

0.1

.6

.9

.9

.9

1.0

1.0

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

1.1

1.1

1.1

1.2

1.2

1.6

1.9

1.9

2.1

2.0

Maximum

3.4

.2

0

4.8

.2

.1

.2

1.0

2.1

2 . 8

3.6

4.0

4.1

4.X

June

2.0

2.2

2.1

2.1

2.2

2.1

2.1

2.1

1.8

1.4

1.4

1.4

1.4

1.5

1.5

1.7

2.0

2.0

2.3

2.7

2.7

2.8

2.2

1.9

1.9

1.9

1.9

1.9

2.1

2.0

-

Minimum

1.1

0

0

0

0

0

0

.1

.1

1.4

1.9

3.1

3.7

0

July

1.9

2.0

2.0

2.0

2.0

2.0

2.5

2.9

3.0

3.1

3.1

3.2

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.0

3.0

3.0

2.9

3.3

3.6

3.6

3.5

Aug.

3.5

3.5

3.4

3.4

3.3

3.3

3.2

3.2

3.1

3.2

3.3

3.6

4.0

4.0

3.9

3.9

3.7

3.7

3.9

3.9

3.8

3.8

3.8

3.8

3.8

3.7

3.7

3.7

3.6

3.6

3.6

Mean

2.87

.01

0

1.45

.01

.01

.04

.23

1.15

2 . 89

3.61

3.90

1.40

Sept.

3.9

4.1

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.7

3.7

Runoff in 

acre-feet

176

0

1,050

.4

2.6

14 

71

118

178

222

232

1.020
226 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 

Ward tunnel at intake, Calif.

Location.- Water-stage recorders, concrete control, and venturi meter, lat. 3V°17', long. 

HB u t)a' , in SE£ sec. 36, T. 7 S. , R. 27 E., in gatehouse at entrance to tunnel. Altitude of gages, about 7,350 feet (from topographic map).

Recsrds available.- April 1925 to September 1948.

Average discharge.- 22 years (1925-31, 1932-48), 259 second-feet.

Extremes.- Maximum daily discharge during year, 902 second-feet June 30; minimum daily, 

 0.4 second-foot Oct. 10, 11.

1925-48: Maximum daily discharge, 1,990 second-feet Apr. 30, 1926; no flow at times.

Remarks.- Records excellent. Ward tunnel diverts from Florence Lake, a reservoir on South 

Fork San Joaquin River, to Huntington Lake for use in Big Creek power plants.

Cooperation.- Water-stage recorder graph and rating table for venturi meter, furnished by 

Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

7

8

9

10

11

12

13

14

ib

16

17

18

19

20

21

22

23

24

2b

26

27

28

29

30

31

Oct.

412

385

258

97

46

37

34

31

11

.4

.4

86

77

48

49

50

52

53

53

54

55

54

54

54

53

51

50

50

50

49

48

Nov.

50

50

50

50

239

188

78

60

49

40

45

39

34

39

40

40

42

44

39

30

33

33

27

31

34

34

33

34

35

36

-

Dec.

34

30

26

29

29

34

32

32

28

29

28

29

29

29

28

28

28

26

29

30

28

27

27

27

27

27

27

27

26

23

22

Jan.

24

a25

a26

a27

28

28

31

44

40

37

32

30

29

27

27

27

26

25

24

24

24

25

26

24

25

24

19

21

22

22

21

Feb.

21

20

19

19

20

21

20

22

26

29

28

28

27

27

26

26

27

28

28

27

28

32

31

28

28

28

27

27

26

-

Month

December. ...................................

Calendar year 1947 ......................

April ......................................

U»v

September . .................................

Water year 1947-48 ......................

Mar.

27

30

27

26

26

26

24

25

25

25

24

26.

26

28

34

37

38

43

53

48

48

54

59

58

53

62

75

83

80

72

72

Apr.

86

93

82

77

74

75

76

78

89

180

152

131

132

135

154

185

210

242

235

241

259

235

188

160

191

256

282

266

213

171

Secondfoot-days

875

86,727.3

1 334

8,474

77,313.6

May

150

152

178

220

302

378

388

383

385

385

385

339

278

368

376

398

4O9

426

604

888

864

839

822

521

375

392

386

369

378

386

392

Maximum

239

34

974

440

902

June

392

392

397

402

408

408

410

413

416

423

428

431

438

443

445

473

508

510

514

514

518

645

699

703

784

895

897

898

901

902

-

Minimum

22

.4

392

240

.4

July

821

70S

65C

542

362

218

22C

220

22C

218

334

435

471

430

409

368

317

276

294

318

318

318

318

318

318

318

317

317

315

402

462

Aug.

460

460

457

457

455

452

484

495

493

491

486

484

484

185

1.8

323

484

484

516

530

568

580

604

620

613

554

516

510

506

502

495

Mean

28.2

238

282

211

Sept.

440

413

386

361

283

252

250

250

247

246

244

242

241

241

240

264

274

276

277

276

276

276

274

274

274

274

271

270

270

312

-

Runoff in 

acre feet

1,740

172,000

1,480

22,920

16,810

153,400

a No gage-height record; discharge interpolated.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 227

Ward tunnel at outlet, Calif.

Location.- Water-stage recorder, lat. 37°16', long. 119°09' , in SE-f sec. 5, T. 8 S., R. 

2b E., just upstream from tunnel outlet at east end of Huntington Lake, 6 miles northeast of Big Creek. Altit.ude of gage, about 7,000 feet (from topographic map).

Records available.- November 1927 to September 1948. 

Average discharge.- 20 years (1928-48), 438 second'-feet.

Extremes.- Maximum daily discharge during year, 1,520 second-feet June 26, 27; minimum 

daily, 50 second-feet Oct. 10.

1927-48: Maximum daily discharge, 2,080 second-feet June 21, 1935; minimum daily, 

0.4 second-foot Dec. 7, 1945.

Remarks.- Records good. Tunnel diverts from Florence Lake to Huntington Lake, receives 

diversions from Bear and Mono Creeks and at times from several other small tributaries 

of Soath Pork San Joaquin River. See record for Ward tunnel at intake on preceding 

page.

Cooperation.- Water-stage recorder graph, furnished by Southern California Edison Co., obtamed in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

11

12

16

17

20

21

23

26

Oct.

424

436

315

158

90

76

72

66

52

50

75

130

165

124

128

135

156

154

152

151

149

148

140

133

129

126

123

122

135

142

155

Nov.

162

157

151

143

289

276

166

128

104

100

95

83

84

99

100

100

101

103

98

68

88

84

71

84

89

90

89

90

93

95

-

Dec.

90

80

66

78

78

90

80

84

72

77

78

77

75

75

74

72

74

72

77

77

75

72

73

72

72

72

71

71

68

60

59

Jan.

62

64

69

75

77

75

81

116

112

101

88

83

78

75

75

74

71

71

62

63

66

69

72

68

68

59

52

58

59

58

55

Feb.

56

54

52

52

54

57

59

65

72

74

74

73

72

71

68

69

74

74

74

72

75

83

77

73

74

75

71

71

70

_

-

Month

December. ...................................

Calendar year 1947 ......................

April ......................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

72

77

71

66

69

72

65

69

68

67

65

72

70

71

88

93

94

104

121

114

116

126

133

128

116

144

162

176

170

154

153

Apr.

181

198

170

163

158

154

162

164

161

266

256

233

238

235

256

291

344

422

422

441

475

429

359

312

406

523

568

540

430

360

Secondfoot-days

2,311

152,578

1,985

9,317

35,784

9,439

140,847

May

323

345

436

568

781

994

1,140

880

782

775

812

838

1,010

1,040

1,050

1,090

1,090

1,080

1,130

1,320

1,230

1,220

1,370

,250

,060

,080

,09O

,050

1,050

1,040

1,040

Maximum

90

1,440

83

568

1,520

481

1,520

June

994

1,050

1,070

1,060

1,050

1,030

1,070

1,100

1,100

1,O90

1,100

1,100

1,100

1,100

1,100

1,120

1,150

1,150

1,150

1,150

1,160

1,240

1,310

1,310

1,360

1,520

1,520

1,510

1,510

1,510

Minimum

59

50

52

52

65

154

323

994

452

67

273

50

July

1,450

1,300

1,240

1,070

818

583

564

579

602

641

755

840

857

779

750

719

651

588

576

584

566

574

545

521

500

484

470

459

452

520

595

Aug.

588

586

579

574

566

556

578

588

578

571

564

557

550

325

67

316

544

5,39

562

581

610

627

644

666

658

603

556

552

544

539

534

Mean

74.5

418

72.8

68.4

102

311

967

1,193

698

545

315

385

Sept.

481

446

423

394

333

290

288

285

283

281

280

278

276

274

273

290

306

306

306

305

303

303

302

301

303

303

302

300

297

327

Runoff in 

acre-feet

4,580

302,600

4,470

3,940

6,280

18,480

59,430

70,980

42,910

33,520

18,720

279,400
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Bear Creek near Vermilion Valley, Calif.

Location.- Water-stage recorder, lat. 37°20', long. 118°58', in SWi sec. 12, T. 7 S., R.

27 E., 2 miles upstream from mouth and 4 miles by trail south of Vermilion Valley.

Altitude of gage, about 7,400 feet (from topographic map). 

Drainage area.- 53.5 square miles. 

Hecords available.- November 1921 to September 1948. 

Average discharge?- 24 years (1922-30, 1932-48), 87.2 second-feet. 

.Extremes.- Maximum discharge during year, 600 second-feet May 26 (gage height, 5.41 feet);

minimum, 1.8 second-feet or less Mar. 4 (during period of ice effect).

1921-48: 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 period of ice effect, which are fair. No storags

or diversion above station. 

Cooperation.- Water-stage recorder graph and several discharge measurements, furnished by

Southern California Edison Co., obtained in connection with a Federal Power Commission

project. 

Revisions (water years).- W 611: 1922(M).

Rating table, water year 1947-48, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

3.0

3.1

3.2

3.3

3.4

3.5

3.6 

3.8 

4.0 

4.4

4.8 

5.0 

5.3

302

390

540

100

176

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

10

9.7

9.2

8.7

8.3

8.3

7.9

7.5

7.5

14

22

21

21

23

24

27

31

30

30

30

31

30

28

26

24

24

23

24

32

33

b34

Nov.

(*)

> b20

-

Dec.

(*)

blO

(*)

Jan.

> blO

Feb.

> blO

(*)

-

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1947 ......................

January. ....................................

February. ..................................

March. .....................................

April... ...................................

Bay. .......................................

June .......................................

July... ....................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

(*)

' b!6

Apr.

b25

32

32

33

45

56

60

63

58

49

41

42

64

84

84

70

51

44

-

Secondfoot-days

659.1

600

310

26,373.6

310

290

496

1,233

6,709

10,162 ,

3 574

'617.2

164.9

25,125.2

Bay

41

56

82

118

176

230

198

130

105

103

118

157

223

268

342

372

350

257

163

123

105

124

223

295

355

436

450

381

298

244

186

Maximum

34

-

500

_

_

84

45O

420

319

40

7.9

450

June

163

23O

272

250

233

178

224

312

354

354

386

420

400

405

405

395

372

368

332

345

358

410

390

390

390

386

372

381

363

324

-

Minimum

7.5

-

5.3

_

_

41

163

41

8 . 3

4.0

4.0

July

319

272

218

174

138

116

111

118

129

148

158

148

138

120

118

118

111

100

96

88

82

88

77

65

57

51

47

44

42

42

41

Aug.

40

40

38

37

35

33

31

26

24

23

22

21

19

18

18

17

16

15

14

14

13

12

11

11

11

11

10

10

9.7

9.2

8.3

Mean

21.3

20

10

72.3

10

10

16

41.1

216

339

115

19.9

5.50

68.6

Sept.

.9

.9

.9

.9

.5

.5

.1

.5

i. 5

 ?

.9

.9

.6

.3

.7

.5

.?

' .?

.?

.?

.0

.0

.0

.?

.,5

.7

t .7

^ ct f c

.£

-

Runoff in 

acre-feet

1,310

1,190

615

52 , 300

615

575

984

2,450

13,310

20,160

7,090

1,220

327

49,85O

Peak discharge (base, 440 sec.-ft.- May 15 (7 p.n 

June 11 (9 p.mT)530 sec.-ft.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

500 sec.-ft.; May 26 (8 p.m.) 600 sec.-ft.j
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 229

Mono Creek near Vermillion Valley, Calif.

Location.- Water-stage recorder, lat. 37°22', long. 118°59', in SW^ sec,. 35, T. 6 S., R.

av Ji. (unsuryeyed), 1 mile dovmstream from lower end of Vermillion Valley and 6 miles

downstream from North Pork. Altitude of gage, about 7,400 feet (from topographic

map).

Drainage area.- 92.0 square miles. 

Keeords available.- November 1921 to September 1948. 

Average dlsenargeT- 24 years (1922-30, 1932-48), 147 second-feet. 

Kxtremes.- Maximum discharge during year, 838 second-feet May 27 (gage height, 7.17

feet); minimum, 12 second-feet or less Jan. 31 (during period of ice effect). 

1921-48: Maximum discharge, 1,760 second-feet June 2, 1938 (gage height, 8.62

feet); minimum, 6.5 second-feet Dec. 22, 1939. 

Remarks.- Records good except those for period of ice effect, which are fair. No storage

or diversion above station. 

Cooperation.- Water-stage recorder graph and several discharge measurements, furnished by

Southern California Edison Co., obtained in connection with a Federal Power Commission

project. 

Revisions (water years).- W 1011: 1943.

Rating tables, water year 1947-48, except period of Ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to May 27 May 28 to Sept. 30

4.9

5.0

5.1 

5.3 

5.5

21 5.7

6.0 

6.3 

6.7. 

7.1

164

266

395

595

800

4.8 

5.0 

5.2 

5.4 

5.6

10

92

137

5.8 

6.0 

6.3 

6.7 

7.1

195

266

395

595

800

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

24

23

23

22

22

21

21

21

12

36

45

41

41

42

44

49

60

57

56

53

55

49

45

42

40

40

39

39

46

53

59

Nov.

64

59

56

52

48

(«)

' b34

-

Dec.

(»)

> b23

Jan.

0

 b23

Feb.

(*)

' b21

_

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1947 ......................

January. ...................................

February. ..................................

March. ....................:................

April ......................................

May... .....................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

C)

 b31

/

Apr.

\

. b45

54

56

62

83

93

96

107

116

107

96

98

121

142

147

144

118

109

-

Secondfoot-days

1,228

1,129

713

43,885

713

609

961

2,334

11,240

15,930

5,908

1,418

583

42,760

May.

102

114

142

186

255

345

354

259

219

219

233

266

349

425

510

580

575

460

328

262

233

236

332

445

530

635

675

620

510

460

381

Maximum

60

64

756

_

_

_

147

675

675

435

81

24

675

June

345

390

440

460

400

354

381

480

550

580

620

665

650

675

660

635

590

570

520

515

545

590

550

555

570

565

555

545

515

455

-

Minimum

21

-

21

.

_

_

_

102

345

82

25

16

16

July

435

386

345

290

240

209

202

212

226

240

248

229

215

192

195

195

189

170

167

150

142

142

130

118

109

100

94

88

84

84

82

Aug.

79

81

79

75

70

66

63

59

53

52

48

47

44

42

41

40

40

38

37

36

34

33

32

31

31

29

28

27

26

26

25

Mean

39.6

37.6

23

120

23

21

31

77.8

363

531

191

45.5

19.4

117

Sept.

24

24

24

24

24

23

81

22

21

21

21

21

21

20

19

18

18

17

17

17

16

16

16

16

16

17

18

18

17

16

-

Runoff in 

acre-feet

2,440

2,240

1,410

87,050

1,410

1,210

1,910

4,630

22,290

31,600

11,720

2,800

1,160

84,820

Peak discharge (base, 540 see.-ft.).- May 16 (10 p.m.) 725 sec.-ft.; May 27 (10 p.m.) 

June 13 (11 p.m.) 828 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 6 to Apr. 13.

889419 O - 50 - 16
230 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Huntington Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°14', long. 119°13', in SW^ sec. 14, T. 83., R. 25 

E., in gate towe^ of dam 1 on Big Creek, 2 miles northeast of town of Big Creek. Datum 

of gage is at mean sea level.

Drainage area.- 79.0 square miles.

Records available.- Ootobe-r 1926 to September 1948. 1913 to 1926, summary records only, 

in Water-supply Paper 881.

Extremes.- Maximum contents during year, 88,700 acre-feet July 14, 15, 17-20, 22, 23; 

maximum elevation, 6,949.68 feet July 15; minimum contents, 18,300 acre-feet Mar. 19 

(elevation, -6,883.27 feet).

1913-48: 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. Capacity, 89,200 acre-feet between elevations 6,819.9 feet 

(invert of outlet tunnel No. 1 and 6,950 feet (spillway crest at dam 1) above mean sea 

level. 600 acre-feet is not available for release. Water is used for power development in Big Creek plants. Records show usable contents at 12 p.m.

Cooperation.- Record of contents, furnished by Southern California Edison Co., obtained in 

connection with a Federal Power Commission project.

acre-feet, water year October 1947 to September 1948

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.

87.100

87,000

86,700

86,000

85,200

84,300

83,500

82,800

82,000

81,400

80,800

80,700

80,100

79,500

78,800

78,200

77,700

77,100

76,700

76,200

75,700

75,000

74,400

73,800

73,000

72,700

72,000

71,400

70,900

70,400

69,900

Nov.

69,600

69,700

69,300

68,900

68,700

68,500

68,000

67,600

67,400

66,800

66,300

65,600

64,900

64,200

63,700

63,500

62,900

62,100

61,600

61,000

60,400

60,000

59,800

59,200

58,500

57,900

57,800

57,100

56,600

56,400

-

Dec.

55,800

55,100

54,500

53,800

53,100

52,500

52,300

51,700

51,000

50,400

49,900

49,400

49,000

48,800

48,400

47,900

47,600

47,200

46,800

46,400

46,100

45,700

45,200

44,900

45,000

44,700

44,300

44,200

43,800

43,400

42,900

Jan.

42,800

42,500

-42,200

42,200

41,900

41,500

41,300

41,100

40.900

40,900

41,000

40,700

40,500

40,200

39,900

39,700

39,700

39.900

39,500

39,100

38,600

38,100

37,800

37,800

37,400

36,800

36.200

35,700

35,100

34,600

34,500

Feb.

34,500

34,000

33,400

32,900

32,400

32,000

31,700

31,800

31,400

31,000

30,600

30,100

29,600

29,200

29,200

28,700

28,300

28,000

27,500

27,100

26,700

26,800

26,500

26,000

25,500

25,000

24,500

24,500

24,500

-

Mar.

24,100

23,700

23,200

22,700

22,200

21,700

21,700

21,300

20,800

20,300

19,800

19,500

19,300

19,400

19,200

19,000

18,800

18,500

18,300-

18,500

18,800

18,800

18,700

18,800

18,800

18,800

18,800

18,900

18,900

18,800

18,700

Apr.

18,600

18,500

19,000

19,000

18,900

18,800

18,700

18,700

18,900

19,600

20,200

20,700

21,200

21,700

22,300

22,900

23,700

24,800

25,700

26,700

27,600

28,600

29,500

30,400

31,400

32,700

34,200

35,600

36,700

37,500

-

May

38,200

39,100

39,900

41,200

42,900

44,700

46,000

47,000

47,900

48,300

48,900

49,500

50,600

52,000

53,200

54,400

55,200

55,400

55,000

54,800

54,300

53,900

54,800

55,400

55,800

56,400

56,900

57,000

56,900

56,900

56,803

June

56,400

56,000

56,000

56,500

57,600

58,800

60,300

61,800

63,200

64,400

65,500

66,600

68,000

68,900

69,600

70,300

70,900

71,500

72,100

72,800

73,400

74,000

74,800

75,400

76,100

77,100

78,400

79,300

80,200

80,900

-

July

81,800

82,500

83,500

84,700

85,900

86,400

86,900

87,400

87,600

88,000

88,500

88,400

88,600

88,700

88,700

88,500

88,700

88,700

88,700

88,700

88,600

88,700

88,700

88,600

88,600

88,400

88,300

88,000

87,800

87,700

87,700

Aug.

87,900

87,900

88,000

88,OOO

87,900

87,900

87,800

88,100

88,100

88,100

88,100

88,100

88,200

88,400

87,600

87,100

87,000

86,900

86,900

86,900

86, .900

87,200

87,400

87,600

87,700

87,800

87,800

87,800

87,800

87,800

88,000

Sept.

88,100

88,200

88,200

88,200

88,400

88,400

88,300

88,200

88,000

87,600

87,600

88,000

87,900

87,700

87,500

87,400

87,300

87,500

88,000

87,900

87,900

87,700

87,600

87,500

87,500

87,800'

87,700

87,400

87,300

87,200

-

Monthly elevation and contents, October 1947 to September 1948

Nov.

Ca

Feb.

June

Sept

Wa

Date

lendar year 1947....

29.. ...............

30...... ...........

.30. ................

ter year 1947-48. . . .

Elevation 

(feet)

-

6,948.61

-

Contents 

(acre-feet)

-

87,200

-

Change in contents 

during month 

(acre-feet)

-32,900

-800

0
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Big Creek below Huntington Lake, Calif.

231

Location.- Water-stage recorder, Parshall flume and concrete control, lat. 37°13'10", 

long. 119 0 12'50", in NW£ 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 1948 (records prior to October 1929 only for 

periods of spill from Huntington Lake).

Extremes.- Maximum discharge during year, 6.7 second-feet May 6 (gage height, 1.63 feet); 

minimum, 0.2 second-foot on many days in January and February.

1925-48: 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. 5-18, 1931.

Remarks.- Records excellent. Flow regulated by Huntington Lake beginning in 1913 (see 

preceding page). During most of year flow is diverted for power development at Big 

Creek powerhouse No. 1.

Cooperation.- Water-stage recorder graph and several 'discharge measurements, furnished by 

southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge. In second-feet)

0.1 

.2 .24

.71

1.30

1.0 

1.2 

1.4

1.98

2.76

3.62

4.56

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1

?

3

4

5

6

7

R

9

10

11

1?,

13

14

15

16

17

IB

19

20

21

2223

24

25

26

27

?fl

29

30

31

Oct.

0.3

.3

.3

.3

.3

.3

.3

.4

.4

.9

.6

.4

.4

.4

.4

.4

.4

.4

.3

.4

.4

.4

.4

.3

.3

.3

.3

.4

.6

.5

Nov.

0.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3-

.4

.4

.3

Dec.

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

Jan.

0.3

.4

.3

.4

.3

.4

.5

.6

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

Feb.

0.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

_

-

Month

December. ....................................

Calendar year 1947 ......................

May........................................

July. ......................................

September. .................................

Water year 1947-48 ......................

Mar.

0.3

.4

.3

.3

.3

.3

.3

.4

.3

.3

.3

.3

.3

.4

.3

.3

.3

.3

.3

.3

.4

.4

.5

.5

.5

.4

.5

.6

.5

.5

.6

Apr.

0.8

.8

.7

.6

.6

.5

.5

.5

.9

1.9

1.2

1.0

1.0

1.0

1.4

1.6

2.1

2.1

2.2

2.5

2.3

2.0

1.8

1-9

2.4

2.7

2.8

2.5

2.2

1.8

-

Secondfoot-days

9.3

209.4

11 9

9.2

283.3

May

1.7

1.9

2.3

3.8

3.6

4.1

3.8

3.2

3.0

3.1

3.2

3.3

3.4

3.4

3.5

3.5

3.4

3.3

2.9

2.6

2.5

2.5

2.6

2.6

2.6

2.5

2.4

2.4

2.2

2.5

2.7

Maximum

.3

1.7

.4-

4.1

June

2.4

2.3

2.2

2.1

2.0

1.9

1.9

1.8

1.7

1.6

1.6

1.5

1.5

1.4

1.4

1.3

1.3

1.2

1.2

1.1

1.1

1.1

1.0

1.0

1.0

.9

.9

.8

.8-

.8

-

Minimum

.3

.2

.3

.2

July

0.8

.5

.5

.5

.5

.5

.5

.5

.5

Aug.

0.

.3

.3

Mean

.30

.57

.31

.77

Sept.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.3

"

Runoff in 

acre-feet

18

415

19

23

18

561
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Pitman Creek below Tamarack Creek, Calif.

Location.- Water-stage recorder, lat. 37°12', long. 119°12', in NWij sec. 35, T. 8 S., R.

25 K., 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 1948. 

Average aisenarge.- 20 years, 38.4 second-feet. 

Extremes.- Maximum discharge during year, 435 second-feet May 16 (gage height, 6.03

feet); minimum, 0.1 second-foot Oct. 3-7.

1927-48: Maximum discharge, 2,320 second-feet Dec. 11, 1937 (gage height, 9.65

feet), from rating curve extended above 1,000 second-feet on basis of velocity-area

studies; no flow part of Nov. 24, 1930, Oct. 15-18, 1931. 

Remarks.- Records good except those for period of ice effect, which are fair. No

diversion above station; practically all flow diverted below station to HuntingtonShaver conduit. 

Cooperation.- Water-stage recorder graph and several discharge measurements, furnished

by Southern California Edison Co., obtained in connection with a Federal Power

Commission project. 

Revisions (water year).- W 931: 1940.

Rating table, water year 1947-48 except perioj of Ice effect 

(gage height, In feet, and discharge, In second-feet)

1.8

1.9

2.0

2.1 

2.3

2.7

5.1

11

2.5 

2.8 

3.1 

3.4 

3.7

18 4.0 

4.4

5.2 

5.5

108

146

192

256

314

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.2

.2

.2

.1

.1

.1

.1

.2

.2

2.5

2.2

.9

.6

.5

.4

.5

.5

.5

.4

.4

.6

.5

.5

.4

.4

.4

.4 *.4

1.3

1.5

.8

Nov.

0.5

Dec.

(*)

0.6

Jan.

(*)

0.8

Feb.

1.0

Month

October. ...................................

November ......................... .........

December. ...................................

Calendar year 1947 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

1.2

Apr.

3

4

4

3

3

3

3

3

3

6

7

7

8

8

10

11

14

17

20

25

54

54

48

45

51

71

81

81

57

48

-

Second 

foot-days

18.0

15.0

18.6

7,990.1

24.8

29.0

37.2

752

5,543

3,194

259.5

24.8

6.0

9,921.9

May

44

45

53

85

142

192

191

142

111

122

151

189

230

258

290

302

292

222

137

109

100

143

220

237

269

283

243

205

184

173

179

Maximum

2.5

-

220

_

_

81

302

208

22

2.0

.2

302

June

184

174

192

180

144

149

199

208

182

163

149

139

127

114

102

92

83

77

67

64

61

56

50

45

41

37

34

30

27

24

-

Minimum

0.1

-

.1

_

_

3

44

24

2.2

.2

.2

.1

July

22

20

18

17

16

14

13

13

12

11

10

9.5

8.6

8.0

7.1

6.2

5.4

5.1

4.9

4.6

4.1

3.8

3.6

3.4

3.1

3.1

2.9

2.7

2.7

2.5

2.2

Aug.

2.0

1.8

1.8

1.6

1.5

1.3

1.1

1.1

1.1

.9

.9

.8

.8

.8

.6

.6

.5

.5

.5

.5

.5

.4

.5

.5

.4

.4

.4

.4

.2

.2

.2

Mean

0.58

.5

.6

21.9

.8

1.0

1.2

25.1

179

106

8.37

.80

.20

27.1

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

-

Runoff in 

acre feet

36

30

37

15,840

49

58

74

1,490

10,990

6,340

515

49

12

19,630

Peak discharge (base, 200 sec.-ft.).- May 6 (8 p.m.) 261 sec.-ft.; May 16 (6 p.m.) 435 sec.-ft.; 

May Z6 (6:30 p7m.j 406 sec.-ft.; June 8 (7:30 p.m.) 269 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 1 to Apr. 28 (no gage-height record Mar. 3 

to Apr. 21); discharge computed on basis of records for Huntington-Shaver conduit at outlet.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 233

Shaver Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°09', long. 119°18', in SE-j sec. T. 9 S., R. 24 

dam on Stevenson Creek and 6 miles southwest of town of Big Creek. Datum of

Extreires. - Maximum contents during year, 134,600 acre-feet July 13 (elevation, 5,369.68 

1'eet); minimum 95,400 acre-feet Feb. 3, 4 (elevation, 5,301.46 feet).

1927-48: Maximum contents, 135,700 acre-feet July 4, 5, 1946 (maximum elevation, 

5,370.2 feet: July 13-18, 1945, July 4, 5, 1946); minimum, 652 acre-feet Mar. 7, 1942 

(elevation, 5,249.4 feet).

Remarks.- Lake is formed by concrete-arch dam; completed and storage began in 1927.

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 IS p.m., all of which is available 

for release.

Cooperation.- Record of contents, furnished by Southern California Edison Co., obtained 

in connection with a Federal Power Commission project.

October 1947 to September 1946

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

52.7

52.1

51.6

51.0

50.8

50.3

49.8

49.3

48.8

48.4

48.2

48.1

47.6

47.1

46.6

46.0

45.6

45.1

45.0

44.5

44. 0

43.4

42.9

42.4

42.0

41.8

41.3

40.8

40.3

39.8

39.3

MOT.

39.3

39.3

39.0

38.7

38.3

38.0

37.6

37.5

37.4

37.2

36.9

36.7

36.4

36.2

36.0

36.0

35.8

35.5

35.2

35.0

34 8

34.7

34.6

34.3

34.1

33.8

33.9

33.6

33.5

33.4

-

Deo.

33.2

33.0

32.7

32.6

32.3

32.2

32.2

31.9

31.7

31.4

31.2

3O.9

30.8

30. i

30.4

30.1

29.9

29.7

29.4

29.2

29.1

28.8

28.6

28.4

28.3

28.1

2 .9

2 .9

2 .6

2 .3

2 .1

Jan.

26.9

26.8

26.6

26.5

26.5

26.4

26.4

26.4

36.4

26.4

26.4

26.3

26.3

26.3

36.2

26.2

26.1

26.2

26.1

26.0

25.9

25.8

25.7

25.7

25.7

25.7

25.6

25.5

25.5

25.5

25.5

Feb.

25.5

25.5

25.4

25.4

25.5

25.5

25.5

25.6

25.6

25.6

25.6

25.6

25.6

25.6

 25.6

25.6

25.6

25.6

25.6

25.6

25.6

25.7

25.7

25.8

25.7

25.7

25.7

25.8

25.8

_

-

Mar.

25.8

25.8

25.8

25.8

25.7

25.7

25.8

25.8

25.8

25.9

25.9

25.7

25.8

25.9

25.9

26.1

26.1

26.1

36.1

26.2

26.2

26.2

26.3

26.4

26.4

26.5

26.5

26.6

26.7

26.7

26.8

Apr.

26.9

27.1

27.3

27.4

27.6

27.7

27.7

27.8

28.2

28.8

29.1

29.3

29.5

2'9.6

29.9

30.1

30.5

30.9

31.2

31.6

32.1

32.5

32.9

33.2

33.6

34.0

34.5

35.1

35.5

35.8

May

36.0

36.4

36.7

37.1

37.7

38.9

40.6

42.6

44.2

45.9

47.7

49.6

51.6

53.6

56.3

59.5

62.6

65.6

68.7

71.3

73.8

76.7

79.7

82.1

84.5

86.8'

89.1

91.7

94.4

97.7

100.7

June

103.2

105.5

108.0

110.0

111.4

112.8

113.9

115.1

H6.1

117.2

118.4

119.8

121.2

122.1

122.8

123.4

124.2

124.8

125.7

126.9

127.5

127.9

128.3

128.7

129.2

130.0

131.3

131.8

132.2

132.6

July

132.8

132.7

132.2

131.7

131.8

131.5

131.4

131.3

131.6

132.5

133.5

134.3

134.6

134.3

134.0

133.9

133.5

133.5

133.0

132.6

132.2

131.7

131.3

131.2

131.2

130.7

130.2

129.6

129.0

128.5

128.5

Aug.

128.5

128.0

127.4

126.8

126.3

125.7

125.7

125.7

125.2

124.4

123.6

122.8

122.2

122.2

122.0

121.4

120.8

120.3

119.7

119.1

118.5

118.0

117.5

116.9

116.4

115.8

115.2

114.6

114.4

113.7

112.8

Sept.

111.9

110.9

109.8

108.7

108.2

107.5

106.4

105.4

104.3

103.3

102.6

101.9

100.9

99.8

98.7

97.6

96.6

95.8

95.2

94.1

93.1

92.1

91.0

89.9

89.0

88.3

87.3

86.2

85.4

84.4

-

Monthly elevation and contents, wate 1947 to September 1946.

Date

Dec. 31. .................

Calendar year 1947 .....

Sept. 30. .................

Water year 1947-48. ....

Elevation 

(feet)

5,303.12

-

5,344.48

-

Contents 

(acre-feet)

27,100

.

84,400

-

Change In contents 

during month 

(acre-feet)

-6,300

-2,000

-28,400

+31,200
234 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Huntington-Shaver conduit at outlet, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°10', long. 119°14', In 

 SW£ 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 1948 

Avprage discharge^ 19 years (1929-48), 198 second-feet.

Extremes.- Maximum dally discharge during year, 1,540 second-feet May 16, 17, 25, 26; 

minimum dally, 1.6 second-feet Oct. 16-20, 22-26.

1928-48: Maximum dally discharge, 1,780 second-feet June 3, 4, 1938; minimum dally, 

1.2 second-feet Dec. 28, 1944, to Jan. 2, 1945.

Remarks.- Records good. Conduit diverts from Huntingten Lake to Shaver Lake, with additions from Pitman Creek and seepage en route.

Cooperation.- Water-stage recorder graph and four discharge measurements, furnished by 

Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Revisions (water years).- W 931: 1940.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

fi

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.9

1.9

1.9

1.9

1.9

1.7

1.7

1.7

1.7

3.3

3.3

2.2

1.9

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.7

1.6

1.6

1.6

1.6

1.6

1.7

2.4

3.1

2.6

Nov.

2.6

2.7

2.6

2.6

2.6

2.2

2.2

2.2

2.2

2.1

2.1

2.2

2.1

2.1

2.1

2.2

2.2

2.2

2.2

2.1

2.1

2.1

1.9

1.9

2.1

2.1

2.1

2.2

2.6

2.7

-

Dec.

2.6

2.4

2.2

2.2

2.4

2.4

2.4

2.2

2.2

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.4

2.4

2.2

2.2

Jan.

2.2

2.2

2.4

2.4

2.4

2.2

2.4

2.9

3.3

2.7

2.7

2.6

2.6

2.6

2.4

2.4

2.4

2.4

2.4

2.2

2.1

2.1

2.4

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.2

Feb.

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.6

2.6

2.6

2.6

2.7

2.9

2.9

2.7

2.7

2.7

2.7

2.7

2.7

-

-

Month

December ...................................

Calendar year 1947 ......................

September ..................................

Water year 1947 48 ......................

Mar.

2.7

2.7

2.7

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.7

2.7

2.7

2.7

2.9

2.9

2.9

3.1

3.3

3.6

3.3

3.3

3.8

4.0

4.5

4.3

4.0

Apr.

4.8

5.9

5.6

5.3

5.3

5.1

5.1

5.3

5.3

7.9

8.6

3.9

10

10

12

13

16

19

22

27

56

56

50

47

53

73

83

83

59

49

-

Secondfoot-days

68.9

49,926.8

7O.4

62,474.8

May

45

46

54

86

138

467

832

786

760

778

818

862

9O4

939

1,280

1,540

1,540

1,500

1,460

1,440

1,440

1,470

1,500

1,520

1,540

1,540

1,510

1,490

1,480

1,47O

1,480

Maximum

2.6

1,460

591

2.4

1,540

June

1,480

1,470

1,480

1,150

686

696

754

778

758

742

734

728

722

714

7O6

698

694

690

686

685

686

685

681

681

679

679

679

681

681

683

Minimum

2.1

1.6

45

2.2

1.6

July

591

478

298

47

46

45

44

43

228

460

568

489

257

159

236

252

37

36

36

36

27

6.9

6.6

6.3

6.3

5.9

5.6

5.6

5.3

5.3

5.1

Aug.

4.8

4.5

4.5

4.5

4.3

4.3

4.0

3.8

3.8

3.8

3.8

3.6

3.

3.

3..

3.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

g

2.

2.4

2.4

Mean

2.22

137

2 53

2.35

171

Sept.

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

?.2

2.2

2.2

2.2

2.2

2.2

 2.2

Runoff in 

acre-feet

137

99,030

185

140

123,900
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 235

North Fork Willow Creek below Crane Valley Reservoir, Calif.

Location.- Water-stage recorder, lat. 37°17', long. 119°32', in SEv sec. 26, T. 7 S., R. 

aa E., 1,500 feet downstream from Crane Valley Reservoir spillway. Altitude of gage, 

about 3,200 feet (from topographic map).

Drainage area.- 50.8 square miles.

Records available.- May 1940 to September 1948.

Extremes.- Maximum discharge during year, 8.3 second-feet Apr. 9 (gage height, 1.35 feet); 

minimum, 0.2 second-foot Feb. 20-22, 23, Mar. 11-13.

1940-48: Maximum discharge, 847 se'cond-feet Feb. 11, 1941 (gage height, 5.85 feet); 

minimum, 0.1 second-foot Nov. 13-16, 1940.

Remarks - Records fair. Flow regulated by Crane Valley Reservoir (capacity, 45,000 acrereet) and diversion into Pacific Gas & Electric Co. conduit No. 3 near Crane Valley 

Reservoir (see following page). Water is diverted from South Fork Willow Creek Into

reservoir.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob 

tained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

8

11

16

21

26

Oct.

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

.7

.7

.8

.8

.8

.8

Nov.

0.7

.7

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

Dec.

0.6

.6

.6

.6

.6

.6

.6

.7

.6

,6

.6

.6

.6

.5

.5

.5

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

Jan.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

Feb.

0.3

.3

.3

.3

.3

.3

.3

.3

.4

.6

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.3

.2

.3

.3

.3

.3

.3

.3

_

-

Month

December . ...................................

Calendar year 1947 ......................

April ......................................

May. .......................................

September . .................................

Water year 1947-48 ...................'...

liar.

0.3

.3

.3

.3

.3

.3

.3

rz

.3

.3

.2

.2

.4

.6

.5

.6

.7

.5

.7

.5

.4

.4

.4

1.8

.9

.7

.5

.4

.8

.5

.4

Apr.

0.4

.5

1.2

.6

1.5

1.6

.8

.6

2.3

2.6

1.2

.8

.6

.5

.5

.5

.4

.4

.4

.4

.4

.5

.4

.4

.4

.3

.3

.4

.9

.9

Secondfoot-days

21.0

17.2

16.9

10,311.4

11.5

8.9

15.1

22.7

19.8

26.7

29.2

27.9

29.1

246.0

May

0.5

.5

.5

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.6

.8

.8

.8

.8

.7

.7

.8

.8

.8

.8

.8

.8

1.3

.9

Maximum

0.8

.7

.7

163

.6

1.8

2.6

1.3

1.0

1.0

1.0

1.0

2.6

June

0.8

.8

.8

.9

.8

.8

.8

.8

.8

.9

.9

.9

.8

.8

.9

.9

.9

.9

.9

.9

.9

1.0

1.0

1.0

1.0

1.0

.9

.9

1.0

1.0

Minimum

0.

f t

L

.6

.<

.£

t e

.;

July

1.0

.9

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

Aug.

0.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

.9

.9

.9

.9

.9

.9

.9

1.0

.9

.9

.9

.9

.9

Mean

3 0.68

5 .57

I .55

t 28.3

.37

> .31

> .49

.76

I .64

.89

.94

.90

.97

.67

Sept.

1.0

1.0

.9

.9

.9

.9

.9

1.0

1.0

1.0

1.0

.9

.9

.9

.9

1.0

1.0

1.0

1 0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

Runoff in 

acre-feet

42

34

34

20,450

23

18

30

4?

39

53

58

55

58

489
236 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif.

Location.- Water-stage recorder, lat. 37°17', long. 119°32', in SE^ sec. 26, T. 7 S., R. 

a a E. , 1,000 feet downstream from Crane Valley Dam and powerhouse. Altitude of gage, 

about 3,300 feet (from topographic map).

Records available.- October 1940 to September 1948.

Extremes.- Maximum daily discharge during year, 145 second-feet Feb. 2; minimum daily, 0.2 

second-foot Mar. 18, 21, 23.

1940-48: Maximum daily discharge, 164 second-feet Sept. 21, 1944; no flow at times 

during each year except 1945, 1946, 1948.

Remarks.- Records good. Conduit diverts from Crane Valley Reservoir in sec. 26, T. 7 S., 

K. 'd a E. Water passes through Crane Valley powerhouse, then to powerhouse No. 3 and 

eventually returns to North Pork Willow Creek.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Ib

16

18

20

21

23

24

25

26

27

29

31

Oct.

0.4

6

.4

.4

6.6

63

80

30

36

.5

7.7

,.4

4.8

.4

.4

8.1

.4

7.4

3.4

.4

.4

7.2

61

14

.5

6.0

79

86

13

.5

7.0

Nov.

0.5

.5

29

78

25

34

29

.5

5.6

24

22

46

89

74

.6

6.2

57

72

29

61

32

.6

.6

53

74

57

.6

28

.6

6.8

-

Dec.

61

47

34

67

78

41

.7

104

113

121

89

87

13

.8

120

124

107

111

114

39

35

113

85

48

.8

17

30

.7

122

118

95

Jan.

0.8

56

.8

7.2

62

57

32

27

29

.7

.7

35

90

85

92

96

33

.6

97

120

131

130

142

140

120

127

138

132

117

111

126

Feb.

122

145

130

133

143

111

.7

6.8

107

60

45

33

83

72

.6

82

76

74

59

40

69

.6

36

114

116

115

109

91

64

_

-

Month

December. ..................................

Calendar year 1947 .......................

September. .................................

Water year 1947-48 ......................

Mar.

loo

62

96

64

94

60

73

36

.4

7.5

.6

7.2

.5

.5

8.3

5.3

3.1

.2

.3

8.1

.2

6.8

.2

5.5

3.2

.3

6.2

.3

6.2

56 -

41

Apr.

78

122

123

138

100

T

6.:

f 4

i

6.2

i

8.C

3

4.3

4.5

3

7.7

3

7.C

Secondfoot-days

2,136.0

13,207.7

123 5

235 3

2,567.9

13,882.0

May

0.3

.3

7.6

.3

.3

7.7

.4

.4

7.5

.4

7.3

.4

.4

7.5

.4

.4

7.5

.4

.4

.5

7.7

.5

4.9

.5

33

.4

7.7

.5

.5

Maximum

124

147

102

145

June

7.6

5

7.6

.6

5.9

.6

6.1

.6

7.8

5

9.7

5

.5

8.7

5

.5

8.8

.5

.5

9.3

36

21

.5

25

.5

.5

17

32

25

Minimum

0.4

0

.£

July

12

.4

6.4

. 5

5

8.4

6.4

19

27

19

IS

32

41

56

18

12

6.4

42

41

15

8.1

e.3

.4

8.2

9.0

7.1

37

21

13

Aug.

13

13

13

9.7

6.6

5.9

6.0

6.6

6.7

34

6.5

.5

6.7

83

77

22

3.5

.6

4.8

3.6

4.9

.6

32

.7

74

94

96

95

.6

97

95

Mean

17.1

68.9

36.2

75.3

77 .2

20.8

85.6

37.9

Sept.

95

97

100

99

1.0

89

98

100

100

97

98

.6

99

98

98

98

99

99

.6

102

99

101

99

98

99

.7

102

101

101

99

-

Runoff in 

acre feet

1,050

1,860

4,240

26,200

4,630

4,440

1,490

1,240

245

970

5,090

27,530
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Big Sandy Creek near Auberry, Calif.

Location.- Water-stage recorder, lat. 37°03'10", long. 119°32'30", in NE^NWij se^. 23,

T. 10 S. , R. 22 E., 1.8 miles upstream from mouth, 3 miles west of Prather, and 4 miles 

southwest of Auberry. Altitude of gage, about 1,240 feet (from topographic map).

Drainage area.- 27.8 square miles (revised). 

Records available.- October 1946 to September 1948.

Extremes.- Maximum discharge during year, 1,120 second-feet Apr. 10 (gage height, 3.49 

1'eet) ; no flow Oct. 1-20, June 23 to Sept. 30.

1946-48: Maximum discharge, that of Apr. 10, 1948; no flow during several monthp 

each year .

Remarks. - Records fair. No storage or diversion above station.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet }

0.9 0 1.5 6.0 2.1 130

.0 .1 1.6 13 2.2 175

.1 .3 1.7 26 2.3 225

.2 .6 1.8 41 2.4 280

.3 1.0 1.9 63 2.5 340

.4 2.5 2.0 92

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Discharge, in second-feet, water year October 1947 to September 1948

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1.1

.1

.1

.1

.1

.1

.1

.1.1

.1

.1

.1

.1

.1

.1

.2

.2

Dec.

0.2

.2

.2

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1f -±

!i

.1.1.1.1.1.1

Jan.

0.

.

Feb.

0.1

.1

.1.2'

.5

.2

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

-

Month

October. ...................................

November. ..................................

December. .................................

Calendar year 1947 ......................

January. ................................. .

February ............................. .....

March.. ....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. ................................

Water year 1947-48 ......................

Mar.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.5

.3

.4

.4

.7

1.7

1.3

.7

.5

.5

24

21

7.6

3.9

2.3

3.5

5.4

2.3

Apr.

1.3

1.0

32

11

8.2

63

18

10

59

332

56

29

15

10

7.6

6.4

5.5

3.9

3.1

2.8

2.5

3.6

3.1

2.5

2.1

2.1

1.9

2.1

15

56

May

16

9.5

7.6

6.4

5.5

4.7

3.9

3.6

3.3

2.8

2.3

1.9

1.5

1.2

1.0

.9

.8

2.1

3.1

2.5

1.9

1.3

.9

.7

.6

.6

.4

.4

.4

2.0

6.0

fSays "-i 

1.1 0.1

3.2 .2

3.5 .2

540.7 22

3.1 .1

3.7 .5

78.4 24

ypq 7 332

QR A T fi

9.1 2.3

o' o'

0 0

0 0

963.6 332

June

2.3

1.2

.9

.7

.7

.5

.4

.4

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

Minimum

0

.1

.1

0

.1

.1

.1

1.0

.4

0

0

0

0

0

July Aug. Sept.

Moan Runoff in Mean acre-feet

0.04 2.2

.11 6.3

.11 6.9

1.48 1,070

.10 6.1

.13 7.3

2!s3 156 -

25.5 1,520

3.09 190

.30 18

0 0

0 0

0 0

2.63 1,910
238 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Fine Gold Creek near Priant, Calif.

Location.- Water-stage recorder, lat. 37°04'00", Iong.ll9°38'50", in HW^HE^ sec. 14, T. 

10 a., R. 21 E., 1,500 feet downstream from Willow Creek and 5.5 miles northeast of 

Priant. Altitude of gage, about 620 feet (from topographic map).

Drainage area.- 92.8 square miles (revised). 

Records available.- October 1936 to 'September 1948. 

Average discharge.- 12 years, 45.7 second-feet.

Extremes.- Maximum discharge during year, 810 second-feet Apr. 10 (gage height, 5.95 feet); 

no flow Oct. 1 to Nov. 13 and June 25 to Sept. 30.

1936-48: Maximum discharge, 10,300 second-feet Mar. 12, 1938 (gage height, 20.4 

feet, from floodmarks), from rating curve extended above 6,500 second-feet; no flow at 

times during each year.

Remarks.- Records fair. No storage or diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

3

4

b

6

7

8

y

10

11

13

16

21

23

26

Oct. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

1.4

2.0

2.0

2.1

Z.I

2.0

2.0

2.0

2.0

2.0

2.0

2.1

2.1 2.3'

2.3

2.3

2.3

-

Dec. ,

2.3

2.3

2.5

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

3.0

3.8

3.2

2.1

2.3

2.1

2.0

2.0

2.0

2.0

2.0

1.8

1.8

1.8

1.8

Jan.

1.8

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.3

1.8

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.6

1.8

1.8

1.8

1.8

1.6

1.6

1.6

1.8

1.8

Feb.

1.8

1.8

2.1

4.9

6.8

5.2

3.2

2.7

3". 8

4.3

3.2

2.7

2.5

2.3

2.3

2.3

2.5

2.5

2.5

2.5

2.5

2.5

. 2.3

2.0

2.0

2.0

2.7

3.8

_

-

Month

December. ..................................

Calendar year 1947 ......................

March ......................................

May

July. ......................................

September. .................................

Water year 1947-48 ......................

Mar.

3.2

2.5

2.3

2.1

2.1

2.0

2.0

2.1

2.3

2.3

2.1

3.0

16

18

12

20

16

20

21

11

7.9

7.6

40

60

36

13

12

14

22

12

Apr.

8.7

22

22

18

94

36

20

37

385

107

67

44

31

22

18

16

14

12

11

10

12

13

9.4

8.5

7.8

7.5

7.2

20

46

Secondfoot days

0

35.0

70.7

2,150.6

54.1

0

2,034.6

May

26

13

11

10

9.1

7.8

7.2

6.6

6.1

5.8

5.1

4.9

4.7

4.2

4.0

3.8

5.1

8.8

7.2

5.8

5.1

4.4

3.8

3.6

3.2

3.0

2.8

2.8

4.7

13

Maximum

0

2.3

3.8

105

60

0

385

June

6.6

4.2

3.8

3.4

3.0

2.5

2.2

1.9

1.8

1.5

1.4

1.2

1.0

.9

.8

.6

.6

.6

.4

.4

.2

.2

.1

0

0

0

0

0

0

Minimum

0

0

1.8

0

1.8

2.0

2.8

0

0

July Aug.

Mean

0

1.17

2.28

5.89

1.75

12.7

37.8

7.08

1.47

0

0

5.56

Sept.

Runoff in 

acre-feet

0

69

140

4,270

107

166

782

2,250

436

88

0

0

0

4,040

Peak discharge (base, 360 see.-ft.).- Apr. 10 (5 a.m.) 810 sec.-ft.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER

Cottonwood Creek near Friant, Calif.

239

Location.- Water-stage recorder, lat. 37 0 00'05 n , long. 119°43'10", in SE£ sec. 6, T. 11 S. 

RT~2T~E., 1 mile upstream from mouth and 1 mile northwest of Priant. Altitude of gage, 

about 355 feet (from topographic map).

Drainage area.- 38 square miles'.

Records available.- October 1941 to September 1948.

Extremes.- Maximum discharge during year, 5.1 second-feet Apr. 10 (gage height, 0.94 foot) 

no flow for several months.

1942-48: Maximum discharge, 569 second-feet Jan. 22., 1943 (gage height, 3.89 feet); 

no flow for several months each year.

Remarks.- Records good. No diversion above station. Creek is tributary to San Joaquin 

Kiver between Friant dam and gaging station downstream.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

10

11

12

13

14

16

17

19

21

22

24

26

27

Oct. Nov. Dec. Jan. Feb.

Month

December. ...................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

July.. .....................................

September ..................................

Water year 1947-48 ......................

Mar.

o

0

0

o

0

0

0

0

0

0

0

0

o

0

0

0

o

.2

0

o

0

o

.5

.6

.1

.1

0

0

0

0

Apr.

0

0

0

.1

.1

.2

.2

.1

.7

3.5

1.9

1.1

.6

.4

.2

.2

.1

.1

0

0

0

0

0

0

o

0

0

.1.1

.3

Secondfoot-days

0

224.7

0

0

11.8

May

0.2

.1

0

0

0

0

0

o

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

Maximum

0

0

20

0

.2

0

0

3.5

June

Minimum

o

0

0

0

0

0

0

o

July Aug.

Mean

0

0

.62

O

.05

.01

0

0

0

.03

Sept.

Runoff in 

acre feet

0

0

0

446

0

0

3.0

20

.6

0

0

0

24

Peak discharge (base, 5 sec.-ft.).- Apr. 1O (2 to 3 p.m.) 5.1 see.-ft.
240 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 

Little Dry Creek near Friant, Calif.

Location.- Water-stage recorder, lat. 36°56 I 25", long. 119°40'55", in SEi sec. 28, T. 11 

i>., K. 21 E., 4 miles upstream from mouth and 3.5 miles southeast of Friant. Datum of 

gage is 357.02 feet above mean sea level (levels by State of California).

Drainage area.- 58 square miles.

Records available.- October 1941 to September 1948.

Extremes.- Maximum discharge during year, 171 second-feet Apr. 10 (gage height, 2.66 feet); 

no flow for several months.

1941-48: Maximum discharge, 1,530 second-feet Feb. 1, 1945 (gage height, 4.58 feet), 

from rating curve extended above 360 second-feet by logarithmic plotting; no flow for 

several months each year.

Remarks.- Records fair.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

17

19

20

21

22

23

24

25

26

27

28

29

30

Oct. Nov. Dec. Jan. Feb.

Month

December ...................................

Calendar year 1947 ...................

January ...................................

March. .....................................

April. .....................................

May. .......................................

July... ....................................

September. .................................

Water year 1947-48 ......................

Peak discharge (base, 170 see. -ft.).- Apr.

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.1

.1

0

0

0

Apr.

0

o

a.l

a.l

ao

a. 5

a. 3

a. 2

a. 2

78

17

9.3

5.2

3.3

2.6

2.0

1.5

1.0

.6

.4

.2

.2

.1

.2

2.0

7.3

Secondfoot-days

0

315.9

0

0

134.1

11.7

0

146.3

May

6.0

2.4

1.4

.8

.5

.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

Maximum

0

15

0

0

.2

78

6.0

0

0

78

June

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

July Aug.

Mean

0

0

.87

0

0

.02

4.47

.38

0

0

0

0

0.40

Sept.

Runoff in 

acre feet

0

0

627

0

0

1.0

266

23

0

0

0

0

290

10(5:30 a.m.) 171 see. -ft.

a No gage-height record; discharge computed on basis of records for Fine Gold Creek near Friant.
241

James bypass near San Joaquin, Calif.

Location.- Water-stage recorder, lat. 36°39', long. 120°11', in SWij sec. 1, T. 15 S., R. 

ib E., 3.1 miles north of San Joaquin. Altitude of gage, 165 feet.

Records available.- October 1947 to September 1948. April 1929 to September 1948 in 

1'lJ.es or Rings River Water Association.

Extremes.- Maximum discharge during year, 605 second-feet May 29 (gage height, 6.78 feet); 

no now for several months.

Maximum flow since April 1929, 4,780 second-feet May 19, 1938, from records of Kings 

River Water Association. Other flood peak discharges from records of same organization, 

3,280 second-feet Feb. 6, 1945, 3,070 second-feet Dec. 15, 1937.

Remarks.- Records good except those below 15 second-feet, which are fair. Diversions 

aBove station for irrigation. James bypass carries overflow from Kings River to San 

Joaquin River.

Cooperation.- Four discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

2.2 2.7 1.8 3.3 20 4.6 135

2.3 .4 2.8 2.7 3.5 30 5.0 198

2.4 .7 2.9 4.7 3.7 42 5.5 296

2.5 1.0 3.0 8.1 4.0 66 6.0 411

2.6 1.4 3.1 12 4.3 96 6.6 560

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year ......................

January ....................................

February ...................,....:..........

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar. Apr. Hay

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

114

24

4.1

1.5

.8

.2

0

0

0

274

565

285

24

£25. - 

0 0

0 0

0 0

-

0 0

0 0

0 0

0 0

1,292.6 565

20.4 7.8

0 0

0 0 -

.6 .4

1,313.6 565

June

7.8

6.7

2.7

1.4

.9

.6

.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

Minimum

0

0

0

-

0

0

0

0

0

0

0

0

0

0

July Aug.

Mean

0

0

0

-

0

0

0

0

41.7

.68,

0

0

.02

3.59

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

D

0

0

0

0

0

0

0

.4.2 ;

0

Runoff in 

acre-feet

0

0

0

-

0

0

0

0

2,560

40

0

0

1.2

2,600
242 FRESNO RIVER BASIN

Fresno River near Knowles, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°14', long. 119°46 I , in NW-Jsec. 15, T. 8 S., R. 20 E., at Fresno Crossing, 0.1 mile downstream from Bean Gulch and 

6 miles northeast of Knowles. Altitude of gage, about 1,140 feet (from topographic nap).

Drainage area.- 132 square miles.

Records available.- September 1911 to December 1913, November 1915 to September 1948.

Average discharge.- 33 years (1911-12, 1916-48), 80.7 second-feet.

Extremes.- Maximum discharge during year, 2,020 seconcf-feet Apr. 10 (gage height, 4.30 

reet); no flow Sept. 2-5, 9-26.

1911-13, 1915-48: 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, 1947, 1948.

Remarks.- Records good. Water diverted into Fresno River Basin above station from San 

Joaquin and Merced River Basins. Small diversions above station for irrigation.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge In second-feet)

1.0

1.1

1.2 

3.0 

6.0

53

80

117

1.8 

2.0 

2.3 

2.6 

3.0

157 

ZiZ 

385 

560 

830 

1,250

Discharge, in second-feet, water year October 1947 to September 1948

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.

1.1

1.1

1.6

2.3

E.3

1.9 1.9'

2.3

2.8

7.2

22

14

8.8

6.4

5.4

5.7

6.8

9.2

8.0

6.8

6.4

8.0

8.0

7.6

7.2

6.8

6.4

6.4

7.6

12

15

Nov.

IE

17

15

13

12

12

11

10

10

10

10

8.8

7.2

6.8

7.2

8.0

8.4

8.0

.6

.2

.2

.6

.6

.2

.2

.2

.2

.2

.2

.2

-

Dec.

7.6

7.6

7.6

7.6

8.8

8.0

7.6

8.8

8.8

8.4

8.4

8.0

8.0

9.2

8.0

8.0

9.E

13

11

10

11

12

12

10

9.2

8.8

8.8

8.8

8.8

8.8

8.0

Jan.

8.8

9.6

9.6

12

10

10

9.6

11

14

12

10

9.6

9.2

8.8

8.8

8.8

8.4

8.4

8.0

8.0

.2

.2

.2

.2

.2

6.8

6.4

5.7

6.0

6.4

6.4

Feb.

7.2

6.8

5.7

5.7

11

14

13

11

12

15

17

12

12

12

11

9.6

10

13

13

13

12

13

15

14

13

12

11

14

16

-

Month

December. ...................................

Calendar year 1947 ......................

March. .....................................

May........................................

September. .................................

Water year 1947-48 ......................

Mar.

14

14

13

12

11

10

10

11

13

14

13

IE

15

39

35

30

66

43

43

49

35

29

30

172

145

98

66

56

77

98

64

Apr.

58

58

141

117

216

362

170

117

E91

1,170

397

229

165

137

121

117

110

106

95

91

84

110

113

80

75

72

69

87

141

145

-

Secondfoot days

E74.0

279.8

10,451.1

1,337

2.7

15,443.0

May

121

102

87

91

113

117

153

145

133

125

125

125

125

1E5

121

121

125

137

133

129

121

113

113

117

117

117

117

113

110

125

149

Maximum

13

28E

172

153

.8

1,170

June

129

121

121

117

113

113

113

113

110

110

110

110

106

102

102

99

95

95

91

91

87

84

84

80

75

72

69

61

58

53

-

Minimum

1.1

6.8

7.6

0

5.7

10

58

87

53

7.2

0

0

July

49

45

41

41

37

35

35

33

32

30

29

26

25

25

23

22

20

18

18

18

17

16

16

15

14

14

13

13

13

11

Aug.

5.4

5.1

5.1

3.9

3.6

3.9

3.9

3.9

3.3

3.3

3.3

3.6

3.9

3.9

2.7

4.8

3.9

2.3

1.4

1.2

1.6

1.7

1.6

1.6

1.6

1.2

.7

.9

.4

.2

7.E .1

Mean

6.74

9.13

9.03

28.6

8.65

11.9

43.1

175

121

96.1

24.2

2.71

.09

42.2

Sept.

0.1

0

0

0

0

.2

.2

.1

0

0

0

0

0

0

o

o

0

0

0

0

0

o

o

0

0

0

.8

.8

.3

.2

-

Runoff in 

acre feet

415

543

555

20,730

532

 682

2,650

10,400

7,470

5,720

1,490

167

5.4

30,630

Peak discharge (base, 56O see.-ft.).- Mar. 24 (5 p.m.) 385 sec.-ft.; Apr. 6 (5:3O a.m.) 574 ser.- 

ft.j Apr. 10 (4 a.m.) 2,02O sec.-ft.
FRESNO RIVER BASIN 243

Fresno River near Daulton, Calif.

Location.- Water-stage recorder, lat. 37°06 I , long. 119°53', in NW£ sec. 3, T. 10 S., R. 

19 K., 0.5 mile downstream from Willow Creek and 5 miles southeast of Daulton. Altitude 

of gage, about 385 feet (from topographic map).

Drainage area,. - 270 square miles.

Records available.- October 1941 to September 1948.

Extremes.- Maximum discharge during year, 2,470 second-feet Apr. 10 (gage height, 4.02 feet) 

no now Oct. 1-11, Aug. 30 to Sept. 30.

1944-48: Maximum discharge, 8,090 second-feet Feb. 2, 1945 (gage height, 7.10 feet); 

no flow at times in September 1945, August, September, October 1947, August, September 

1948.

Remarks.- Records fair. Water diverted into Fresno River Basin above station from San 

Joaquin and Merced River Basins. Small diversions above station for irrigation. Some 

regulation at low flow by mining operations above "station.

Cooperation.- Thirteen discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

9

11

13

16

21

26

Oct.

0

0

0

0

0

0

0

0

0

0

1.6

9.6

7.8

6.0

5.3

4.9

5.5

6.0

7.8

7.2

6.8

6.8

7.5

7.8

7.5

7.8

7.5

7.5

7.5

8.0

11

Nov.

12

12

14

11

10

10

11

10

10

9.6

10

9.6

8.8

.2

.5

.5

.5

.0

.5

.2

.0

.8

.0

.0

.0

.0

.2

.2

.2

.2

-

Dec.

.0

.2

.2

.2

.5

8.4

8.0

7.5

8.4

8.4

8.4

8.0

7.2

8.0

8.1

7.8

8.4

10

13

11

10

11

11

10

9.2

8.0

6.8

7.2

6.8

6.4

6.6

Jan.

6.2

4.2

7.0

7.0

8.4

8.0

8.2

7.6

10

12-

10

10

9.6

9.2

8.8

8.4

S.O

8.0

7.8

7.5

7.2

6.8

6.8

6.8

6.5

6.5

6.5

6.5

6.5

6.0

6.5

Feb.

7.0

7.0

6.8

6.8

8.3

14

16

13

13

14

18

19

14

15

14

12

12

12

13

13

12

12

13

14

13

12

12

13

16

-

-

Hqnth

December. ...................................

Calendar year 194 / ......................

March. .....................................

May. .......................................

June .......................................

July. ......................................

September. .................................

Waxer year 1947-48 ......................

Mar.

16

14

14

13

12

12

12

12

12

13

13

12

14

33

51

44

82

59

61

72

48

37

33

94

286

156

105

79

74

112

79

Apr.

66

64

92

184

195

450

264

139

108

1,450

714

412

288

208

157

136

126

117

106

100

100

102

131

106

92

85

76

76

131

149

Second- - 

foot-days

261.0

259.7

11,443.1

2,983

0

17,237.8

May

144

115

102

96

104

115

131

146

149

144

141

141

141

138

138

138

136

144

155

144

133

126

126

126

128

128

131

128

126

172

Maximum

11

14

13

384

19

146

0

1,450

June

146

133

128

122

122

122

115

115

112

115

110

110

110

106

102

100

100

100

98

98.

92

88

85

77

74

69

62

61

58

53

Minimum

0

6.8

6.4

"o

4.2

6.8

53

8.6

0

0

July

49

46

42

42

40

37

35

34

31

30

28

26

23

22

20

IFr/

17

16

14

14

14

12

11

11

11

10

10 ~10

9.8

8.6

Aug.

6.6

5.0

4.3

4.3

3.6

2.7

2.9

2.7

2.7

2.5

1.3

1.5

2.1

2.1

2.7

1.9

2.1

2.9

1.5

.9

.6

.4

,4

.3

.3

.2

.2

.1

.1

0

0

Mean

4.75

8.70

8.38

31.4

12.6

99.4

22.9

0

47.1 -

Sept.

Runoff in 

acre-feet

292

518

515

22,690

473

724

3,320

12,740

8,170

5,920

1,410

0

34,200

Peak discharge tbaae, 500 see.-ft.).- Apr. 6 (ll:"30 a.m.) 676 sec.-ft.j Apr.10 (8 a.m.) 2,470 sec.-
Chowohilla River at Buchanari dam site, Calif.

Location.- Water-stage recorder, lat. 37°13', long. 120°00' , in SWij sec. 22, T. 83., R. 18 

K., 1.4 miles upstream from Raynor Creek and 5 miles west of Raymond. Datum of gage is 

407.30 feet above mean sea level, adjustment of 1912 (levels by Merced Irrigation District) .

Drainage area.- 238 square miles.

Records available.- October 1921 to September 1923, October 1930 to September 1948.

Average discharge.- is years (1930-48), 110 second-feet.

Extremes.- Maximum discharge during year, 5,660 second-feet Apr. 10 (gage height, 9.90 

feet); no flow Oct. 1 to Nov. 8, July 18 to Sept. 30.

1921-23, 1930-48: Maximum discharge, 18,900 second-feet Mar. 2, 1938 (gage height, 

14.4 feet, from floodmarks), from rating curve extended above 6,000 second-feet by 

logarithmic plotting; no flow for part of each year except 1937, 1938, 1940-43. 

Remarks.- Records good. No storage or large diversion above station. 

Cooperation.- One discharge measurement furnished by Bureau of Reclamation. 

Revisions (water years).- W 931: 1932(P), 1936-38(P).

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Apr. 12 to July 17)

0.4 

.5

.9 

1.5 

2.3 

3.4

1.1 

1.3 1.5" 

1.7 

1.9 

2.1 

2.3

4.7

7.9

12

18

27

38

53

2.6 

2.9 

3.2 

3.6 

4,.0 

4.5 

5.0

82

116

158

235

335

485

680

5.5 

6.0 

6.5 

7.0 

8.0

910

1,190

1,530

1,940

2,920

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6 1

8

10

11

12

13

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

o

0

0

0

0

0

0

.6

1.4

1.5

1.7

1.9

1.9

2.0

2.2

2.7

3.0

2.8

2.8

2.6

2.5

2.5

2.5

3.0

3.1

3.1

3.1

3.1

3.2

3.2

-

Dec.

3.2

3.3

3.2

3.2

3.2

3.2

3.3

3.4

3.7

4.0

3.8

4.0

3.3

3.8

3.9

S.B

4.7

5.9

8.1

7.0

6.7

7.2

7.0

6.5

6.0

5.8

5.4

5.3

5.3

5.2

5.0

Jan.

4.8

5.0

5.4

5.9

6.2

5.9

5.8

5.9

6.0

7.2

6.5

6.0

5.8

5.4

5.3

5.2

5.0

5.0

5.0

4.8

4.4

..8

.2

.6

.7

.0

.6

.6

.4

.6

.6

Feb.

4.7

4.7

4.3

4.7

8.9

13

16

12

9.9

9.7

14

12

9.9

8.7

8.1

7.9

8.5

9.1

9.1

8.5

8.5

8.3

8.7

8.3

7.6

7.2

10

12

_

-

Month

December ....................................

Calendar year 1947 .............. .......

March.. ....................................

April ......................................

Mav

September. .................................

Water year 1947-48 ......................

Mar.

12

10

9.5

8.9

8.1

7.6

7.2

7.2

7.7

7.7

7.7

7.4

10

28

44

36

134

114

104 ;io

54

37

32

405

500

208

115

83

73

144

80

Apr.

60

54

136

154

239

572

264

146

365

 2,490

592

332

227

173

142

125

115

.106

95-

88

81

91

109

79

69

64

59

58

98

122

Secondfoot days

147.4

6,293.6

435 2

0

12,165.1

May

105

83

71

63

59

56

52

49

46

43

41

39

37

34

33

30

29

33

55

50

42

38

34

30

28

26

25

24

24

28

61

Maximum

8.1

598

2 490

0

_2,490

June

48

33

29

26

24

24

23

20

18

16

15

14

14

13

12

11

11

9.9

9.3

8.5

7.9

7.6

7.0

6.4

5.9

5.3

4.8

.4.4

3.9

3.3

-

Minimum

3.2

0

0

0

July

2.7

2.1

1.6

1.3

1.3

1.1

1.1

1.0

.9

.8

.7

.5

.4

.4

.3

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

4.75

17.2

9 03

0

33.2

Sept.

Runoff in 

acre-feet

292

12,470

520

0

24,120

Peak discharge (base, 620 sec.-ft.).- 

t.j Apr. 10 (1:30 a.m.) 5,660 sec .-f t.

- Mar. 24 (10 p.m.) 1,260 sec.-ft. ; Apr. 6 (9 a.m.) 785 see.-
TRIBUTARIES AND DIVERSIONS BETWEEN FRESNO RIVER AND MERCED RIVER 

Chamberlain Slough near El Nido, Calif.

245

Location.- Water-stage recorder, lat. 37°06'45", long. 120°35 I 20", in NE^ sec. 31, T. 9 S., 

K. 13 K., 100 feet downstream from head and 5 miles southwest of El Nido. "Datum of gage 

is 99.14 feet above mean sea level (Bureau of Reclamation bench mark). Prior to Nov. 4, 

at site 70 feet upstream at datum 1.00 foot higher.

Records available.- October 1939 to September 1948.

Extremes.- Maximum discharge during year, 186 second-feet Apr. 13 (gage height, 3.36 feet); 

no now at times.

1944-48: Maximum discharge 2,060 second-feet Feb. 9, 1945 (gage height, 9.84 feet); 

no flow at times (result of irrigation operations).

Remarks.- Records good. Same recorder used for San Joaquln River near El Nido (see p.220); 

add discharge to 'that station to obtain total flow of river at this point.

Cooperation.- Fifteen discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

a

4

b

6

7

9

10

11

12

13

16

17

18

21

22

23

24

25

26

27

29

31

Oct.

S.4

7.6

11

11

10

7.6

7.3

7.6

7.6

8.7

11

12

10

7.9

7.0

7.0

7.6

6.7

5.1

4.1

3.6

3.2

3.0

2.7

2.5

2.4

2.2

2.4

2.7

2.4

2.2

Nov.

2.2

2.2

2.2

2.0

1.8

2.0

1.8

1.8

1.5

1.7

1.5

1.4

1.4

1.4

1.4

1.4

1.5

1.5

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

Dec.

1.3

1.3

al.3

al.2

al.2

al.l

al.l

al.O

1.2

1.0

1.0

1.0

1.0

1.0

al.O

al.l

al.l

al.l

al.2

al.2

al.2

al.3

hi. 3

a8

a9

alO

12

15

17

14

17

Jan.

18

17

18

17

17

18

18

20

20

18

19

20

20

20

20

20

20

16

a8

h5.4

3.7

3.1

2.9

2.6

2.6

2.4

2.4

2.2

1.8

1.7

1.5

Feb.

1.4

1.7

2.9

2.8

2.9

3.1

3.7

4.0

3.5

02.9

3.5

3.1

3.1

3.1

3.1

3.1

3.3

3.1

3.1

2.8

2.4

al.6

f .8

a. 5

.3

.1

.1

.1

0

-

Month

December. ..................................

Calendar year 1947 ......................

January .............................. .....

March. .....................................

April ......................................

May. ........................................

July. ......................................

September ..................................

Water year 1947-48 ......................

Mar. Apr.

0

0

0

1.8

3.5

2.0

0

0

.5

3.3

38

153

175

108

65

36

18

10

7.1

5.7

5.2

5.2

5.4

4.7

4.4

4.0

3.7

4.2

6.5

8.9

Secondfoot-days

192.5

46.4

128.2

24,756.0

679.1

357.2

3,274.8

May

62

133

59

28

14

9.5

7.7

7.1

6.5

6.5

6.2

6.0

5.7

5.7

6.0

6.2

6.2

6.8

8.0

8.0

7.4

7.1

7.1

7.4

9.9

15

13

16

18

15

11

Maximum

12

2.2

17

576

20

4.0

175

24

175

June

13

15

12

9.9

8.0

7.4

6.5

6.5

5.7

5.2

5.0

5.2

14

13

15

12

6.5

4.7

4.0

5.7

12

8.6

8.9

7.4

5.7

5.2

7.1

8.0

8.3

12

Minimum

2.2

1.3

1.0

1.0

1.5

0

0

5.2

4.2

0

July

8.9

13

17

16

15

17

16

15

13

13

11

7.1

6.2

6.5

6.5

6.0

5.2

9.4

18

12

8.6

8.6

8.6

8.0

7.4

8.3

12

8.9

7.1

6.5

6.8

Aug.

8.0

16

14

8.0

7.1

6.5

6.5

5.7

7.1

7.4

7.1

7.4

7.4

7.1

7.4

8.3

16

20

18

15

14

12

16

14

18

20

11

5.7

4.4

4.4

4.4

Mean

6.21

1.55

4.14

67.8

12.1

2.28

0

22.6

16.9

8.58

10.4

10.4

11.9

8.95

Sept.

4.7

4.2

4.2

4.7

5.4

6.5

6.2

5.7

5.4

5.2

5.2

5.2

6.2

7.4

17

18

17

12

16

19

17

24

20

20

18

22

19

14

11

17

Runoff in 

acre-feet

382

92

254

49,100

746

131

0

1,350

1,040

511

640

642

708

6,500

a No gage-height record; discharge computed on basis of records for San Joaquin River near Dos pale 

or interpolated.

c Backwater from wind.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

h Computed from staff-gage reading.

589419 0-50-17
246 TRIBUTARIES AMD DIVERSIONS BETWEEN PRESNO RIVER AND MERCED RIVER

Salt Slough near Los Banos, Calif.

Location.- Water-stage recorder, lat. 37 0 OP'35", long. 120°48'45"., in Sanjon de Santa Rita 

 Grant at San Luis Banch, 7 miles north of Los Banos, Merced County. Altitude of gage, 

about 80 feet (from topographic map).

Records available.- December 1940 to September 1948.

Extremes.- Maximum discharge during year, 712 second-feet Sept. 2 (gage height, 6.51 feet); 

minimum, 25 second-feet Mar. 7.

1944-48: Maximum discharge, 1,200 second-feet May 18, 1945 (gage height, 8.32 feet); 

minimum, 25 second-feet Mar. 7, 1948.

Remarks.- Records fair. Plow regulated by irrigation operations above station. Salt Slough 

is a continuation of Pick Anderson Slough system.

Cooperation.- Twelve discharge measurements furnished hv Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

82

86

93

113

101

106

95

84

85

74

75

71

69

67

64

59

56

52

68

50

41

41

40

40

37

36

37

37

40

41

41

Nov.

43

44

43

41

40

38

37

39

40

37

54

56

51

50

50

50

50

50

50

52

51

51

52

53

56

57

59

59

57

55

Dec.

56

56

58

59

57

56

56

58

62

64

66

65

63

58

56

54

54

54

51

50

50

49

48

44

40

37

37

37

35

33

33

Jan.

33

32

31

30

30

39

55

71

84

93

109

103

101

86

85

80

70

63

57

54

50

46

43

42

41

41

43

44

43

41

37

Feb.

37

36

35

35

37

39

37

36

37

37

36

36

38

39

37

36

36

37

37

37

36

37

37

34

33

33

33

33

30

-

Month

December. ..................................

Calendar year 1947 .....................

March. ............................. .......

May. .......................................

July. ............................... .....

September. .................................

Water year 1947-48 ................... s ..

liar.

29

30

32

29

28

26

28

30

30

31

30

38

45

46

48

45

37

37

37

33

33

34

37

39

33

32

32

35

36

34

Apr.

34

40

46

48

55

84

107

101

107

119

192

164

118

86

78

76

75

73

69

81

56

50

48

44

44

45

49

52

74

98

Secondfoot-days

1,596

41,662

5,882

28,726

Bay

103

101

82

67

66

56

56

54

53

49

50

56

60

67

68

68

69

76

84

111

143

148

156

146

133

119

112

115

117

128

142

Maximum

59

66

417

39

385

385

June

158

148

145

137

127

123

121

101

95

95

79

78

74

84

73

70

61

68

P7

93

118

97

76

71

86

80

86

93

89

83

Minimum

33

33

134

26

July

103

63

66

74

88

115

158

91

81

79

79

85

89

95

94

85

88

86

99

88

84

82

80

84

82

78

81

73

74

71

68

Aug.

69

68

79

73

70

74

79

79

80

81

85

81

84

88

82

83

85

84

74

71

109

101

138

130

280

150

143

148

152

145

148

Mean

51.5

114

196

78.5

Sept.

201

359

385

 2^0

268

234

240

268

234

176

154

143

139

134

148

167

184

202

209

208

195

178

158

151

152

159

155

145

143

143

-

Runoff in 

acre-feet

3,170

82,650

11,670

56,970
MERCED RIVER BASIN 247

Merced River at Happy Isles Bridge, near Yosemite, Calif.

Location.- Water-stage recorder, lat. 37°43'54", long. 199°33 I 28", at Happy Isles Bridge, 

U.4 mile downstream from Illllouette Creek and 2.3 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 1948.

Average discharge.- 33 years, 338 second-feet.

Extremes.- Maximum discharge during year, 3,080 second-feet May 27 (gage height, 6.78 

feet); minimum, 5.6 second-feet Oct. 7.

1915-48: 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. 30r , 1926.

Remarks.- Records good except those for period of ice effect, which are fair. Small diversion above station for. Yosemite Valley water supply.

Rating table, water year 1947-48, except period of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-16 

Aug. 29 to Sept. 30)

1.3

1.4

1.5

1.6

1.7

4.0

6.0

9.0

13

18

1.8

1.9

2.0

2.1 

2.3

34

2.5 

2.8 

3.1 

3.5

4.0

119

186

271

411

635

4.5

5.0 

5.5

6.0 

6.8

_ 910 

1,260 

1,680 

2,160 

3,110

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.9

6,6

6.6

6.3

6.0

5.8

5.8

6.6

6.9

43

71

59

51

48

52

90

230

164

131

115

133

117

97

78

68

64

62

60

82

98

98

Nov.

115

125

117

106

S8

67

65

63

55

47

46

38

35

35

37

39

38

37

33

27

30

24

22

24

25

27

28

30

33

36

-

Dec.

35

30

27

26

24

25

20

22

19

19

21

20

19

19

18

18

19

19

19

21

19

18

19

19

18

18

18

18

17

13

15

Jan.

16

19

28

29

31

27

69

197

108

82

63

58

51

46

42

40

39

36

31

31

31

32

33

34

35

30

25

27

26

25

23

Feb.

23

21

18

19

22

22

21

23

27

26

24

24

27

29

29

31

38

35

32

30

34

45

43

39

37

39

38

38

38

_

-

Month

December. ..................................

Calendar year 1947 ......................

April ......................................

May. .......................................

July .......................................

September ..................................

Water year 1947-48 ......................

Mar.

41

42

37

33

37

36

36

37

38

38

36

36

39

45

46

47

46

b48

b56

b50

52

65

70

70

71

80

95

106

95

92

95

Apr.

129

148

137

119

115

111

104

104

111

131

125

123

129

135

178

250

351

400

415

490

455

373

351

447

534

530

548

435

359

-

Secondfoot days

1,492

632

S9,116.2

1 364

269.1

115,927.6

May

327

351

455

665

977

1,400

1,480

1,050

856

817

922

1,120

1,460

1,720

2,010

2,280

2,270

1,820

1,080

800

640

670

1,160

1,820

2,150

2,560

2,530

2,040

1,490

1,240

1,040

Maximum

35

2,150

10.

2,560

June

1,040

1,320

1,800

1,790

1,270

,200

,610

,920

,290

,090

,920

,970

,800

,820

,710

,640

,550

,540

,380

,400

,320

,470

,400

,360

,420

,400

,270

,230

,240

,240

-

Minimum

13

5.8

327

1 n4o

7.2

5.8

July

1,050

880

696

553

427

348

327

344

362

407

451

411

369

330

327

334

327

287

256

238

221

208

191

171

150

139

125

113

108

104

102

Aug.

100

97

93

88

80

72

67

63

56

52

46

43

39

35

33

31

28

26

24

22

19

19

17

16

16

14

14

14

14

13

12

Mean

20.4

244

' 1 329

1 547

8.97

317

Sept.

11

11

11

11

11

11

11

11

10

9.8

9.8

9.4

9.4

9.4

8.7

8.4

8.1

.8

.8

.5

.8

.5

.5

.2

.5

.5

.8

.5

.5

.2

-

Runoff in 

acre-feet

1,250

176;800

534

229,900

Peak discharge (base 1,400 see.-ft.).- May 6 (11 p.m. 

sec.-ft.; May 27 (1 a.m.) 3,080 sec.-ft June 4 (2 a.m.

ft.

b Stage-discharge relation affected by Iqe.

1,800 sec.-ft.; May 16 (11 p.m.) 2,6_70_ 

2,160 sec.-ft.; June 9 (3 a.m.) 2,550 se
248 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 4.2 miles southwest of 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 1948.

Average discharge.- 31 years (1917-48), 585 second-feet.

Extremes.- Maximum discharge during year, 5,100 second-feet May 27 (gage height, 8.50 

feet]; minimum, 20 second-feet Oct. 7.

1916-48: Maximum discharge, 82,000 second-feet Dec. 11, 1937 (gage height, 19.1 

feet, from floodmarks in gage house), by computation of flow over diversion dam for 

Yosemite powerhouse 1 mile downstream; minimum, 3.3 second-feet Sept. 29, Oct. 1, 19S4.

Remarks.- Records good. Small diversion above station for Yosemite Valley water supply.

Rating.tables, water year 1947-48 (gage height In feet, 

and discharge, In second-feet)

Oct. 17 to Sept. 3o

1.0

1.1

1.2

1.3 

1.5 

1.7

95

132

1.1 

1.3 

1.5

1.7 

2.0 

2.4 

2.8

135

195

293

408

3.2 

3.6 

4.0 

5.0

55O 

720 

920 

1,580

below l.OO foot.

6.0 

7.0 

8.0 

8.5

2,380

3,360

4,500

5,100

Note.- Same as preceding tabl 

Discharge, in seoond-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

23

23

22

22

22

22

22

24

24

52

106

97

78

76

76

128

402

247

191

164

182

170

143

122

107

98

92

90

122

197

180

Nov.

197

223

218

187

164

130

122

117

107

90

87

78

68

66

68

70

70

70

65

55

59

50

46

48

49

51

55

57

64

72

-

Dec.

74

65

56

55

49

Si

44

44

40

41

40

40

40

39

39

38

42

41

41

42

42

40

38

39

39

39

39

39

38

34

33

Jan.

34

40

54

59

74

72

115

516

280

200

152

135

119

110

100

95

90

86

76

74

72

74

76

80

81

74

62

66

59

59

56

Feb.

55

50

43

45

50

50

45

48

56

62

52

51

55

59

61

66

78

84

80

74

78

102

102

94

89

90

90

95

84

_

-

Month

December. ...................................

Calendar year 1947 ......................

April ......................................

May. .......................................

September ..................................

Water year 1947 -48 ......................

Mar.

90

95

81

80

81

82

80

82

84

81

81

81

89

94

97

105

10O

103

122

108

114

137

150

168

144

162

184

213

211

195

191

Apr.

240

306

293

252

250

235

218

225

244

301

277

272

285

293

351

488

711

825

825

904

998

932

760

716

887

1,020

992

1,070

850

738

-

Secondfoot-days

3,324

1,341

148,315

1,988

16,758

73,120

812

195,496

May

666

702

865

1,210

1,710

2,420

2,630

1,880

1,530

1,450

1,660

2,000

2,530

2,920

3,330

3,880

3,930

3,360

2,O70

1,540

1,290

1,350

2,060

3,000

3,570

4,200

4,220

3,330

2,620

2,280

2,000

Maximum

402

74

3,460

516

102

1,070

3,730

33

4,220

June

2,050

2,420

3,080

3,160

2,360

2,320

2,860

3,250

3,730

3,420

3,100

3,100

2,870

2,870

2,650

2,530

2,360

2,320

2,100

2,100

1,950

2,100

1,980

1,910

1,940

1,940

1,760

1,690

1,630

1,570

-

Minimum

22

46

33

22

34

43

80

218

666

1,570

150

23

22

July

1,340

1,140

938

795

657

550

503

499

499

530

566

526

478

434

418

414

402

365

331

312

296

275

257

232

213

195

180

168

160

154

150

Aug.

146

143

137

133

121

114

105

100

92

84

81

74

69

66

62

60

57

56

54

50

48

45

44

42

41

40

39

37

36

35

34

Mean

43.3

406

559

2,437

27.1

534

Sept.

33

32

32

31

30

30

30

30

29

28

28

28

28

27

27

26

26

26

26

26

24

24

24

24

24

24

24

24

24

23

-

Runoff in 

acre feet

6,590

5,560

2,660

294,100

3,940

7,310

33,240

145,000

1,610

387,700
MERCED RIVER BASIN 249

Merced River at Bagby, Calif.

Location.- Water-stage recorder, lat. 37°36'50", long. 120°08'10", in Rancho Mariposa 

Grant, 800 feet upstream from highway "bridge at Bagby, Mariposa County. Altitude at 

gage about 850 feet {from topographic map). Prior to Nov. 4, 1947, at site 4.0 miles 

downstream at different datum (published as Merced River at Kittridge prior to Oct. 1, 

1947).

Drainage area.- 912 square miles. 935 square miles at site at Kittridge.

Records available.- October 1947 to September 1948. November 1922 to November 1928 at 

site 5.2 miles downstream, and November 1928 to September 1947 at site 4.0 miles 

downstream, published as Merced River at Horseshoe Bend prior to October 1931 and 

as Merced River at Kittridge October 1931 to September 1947.

Average discharge.- 22 years (1923-27, 1929-30, 1931-48), 1,239 second-feet.

Extremes.- Maximum discharge during year, 9,090 second-feet May 27 (gage height, 7.13 

reet); minimum, 27 second-feet Oct. 1.

1922-48: Maximum discharge, 59,000 second-feet Dec. 11, 1937 (gage height, 31.0 

feet, from floodmarks, site and datum then in use), from rating curve extended above 

11,000 second-feet on basis of velocity-area studies and records of change in contents 

in Lake McClure; minimum, 13 second-feet Oct. 5, 1925, site then in use.

Remarks.- Records good. No storage or large diversion above station.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

30

30

30

30

3D

29

29

30

32

50

123

178

154

120

109

110

287

466

330

254

224

245

227

191

168

151

136

130

134

197

288

Nov.

268

335

a340

289

277

235

197

188

179

159

a!54

148

138

127

129

138

143

138

136

129

118

118

112

104

102

106

110

116

120

127

-

Dec.

141

141

132

120

118

112

110

112

108

98

98

96

96

96

93

93

100

127

108

112

112

112

104

100

102

102

102

102

102

100

89

Jan.

87

100

122

143

138

151

146

543

656

412

321

256

232

213

200

188

182

170

165

154

146

,143

146

148

151

154

148

134

132

129

125

Feb.

125

122

118

106

138

167

154

129

136

197

194

148

141

143

146

151

170

203

219

200

188

203

259

226

203

197

197

210

219

-

-

Month

December. ...................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

200

203

2O6

191

182

182

179

176

191

185

179

179

197

325

312

308

452

372

452

422

359

350

390

1,480

1,160

831

720

701

740

789

649

Apr.

649

754

1,290

1,O4O

1,320

1,670

1,130

896

952

4,76O

2,300

1,410

1,120

1,000

1,020

1,200

1,480

1,790

1,690

1,750

1,970

2,150

1,760

1,470

1,600

1,970

1,860

2,160

1,870

1,640

-

Second 

foot-days

3,338

248,073

6,135

1,375

340,214

May

1.47C

1,41C

1.52C

1.97C

2,79C

4.0OC

5,OOC

3.52C

2,71C

2,42C

2,71C

3.20C

4,04C

4,85C

5.34C

6.44C

6,58C

6.17C

3,69C

2,66C

2,160

2,050

3,120

4,810

5,620

6,780

7,300

5,460

4,430

3,840

3,420

Maximum

141

5,350

58

7,300

June

3,240

3,920

4,340

5,320

3,9OO

3,490

4,6OO

5,360

6,120

5,46O

4,850

4,900

4,37C

4,430

4,060

3.8OO

3,510

3,470

3,140

3,050

2,840

3,000

2,820

2,680

2,630

2,620

2,340

2,190

2,110

2,010

-

Minimum

89

28

40

29

July

1,760

1,530

1,290

1,O9O

928

796

7O8

688

668

668

701

694

630

580

520

514

502

474

422

394

372

346

325

304

277

£59

239

222

210

203

197

Aug.

191

185

176

170

165

154

143

138

134

122

118

110

104

100

96

91

87

89

89

86

82

80

79

77

76

74

71

66

65

63

60

Mean

147

166

108

680

173

45.8

930

Sept.

58

56

52

51

51

50

50

50

48

47

45

44

42

42

41

40

40

40

41

41

41

41

41

42

44

46

48

50

47

46

-

Runoff in 

acre-feet

6,620

492,000

2,730

674,800
250 MERCED RIVER BASIN

Lake McClure at Exchequer, Calif.

Location.- Indicator in powerhouse, lat. 37°35', long. 120° 16', in SW-J- sec. 13, T. 4 S., 

FT15 E., at Exchequer Dam on Merced River, 5 miles northeast of Merced Falls. Datum 

of gage is at mean sea level (levels by Merced Irrigation District).

Drainage area.- 1,030 square miles.

Records available.- April 1926 to September 1948.

Extremes.- Maximum contents during year, 285,100 acre-feet June 4 (elevation, 708.4 

feet); minimum, 3,580 acre-feet Oct. 9, 10 (elevation, 480.4 feet).

1926-48: Maximum contents, 289,400 acre-feet June 4, 1938 (elevation, 710.0 feet); 

practically no storage at times in 1926, 1930, 1931, 1934.

Remarks.- Reservoir is formed by concrete gravity-type dam completed in 1926; storage

began in April 1926. Capacity, 280,900 acre-feet between elevations 442.6 feet (botto-n 

of sluice valve) and 707.0 feet (top of spillway gates) above mean sea level. Water 

passes through power plant at dam and down Merced River to diversion'dam of Merced 

Irrigation District's main canal. Records show total contents at 12 p.m.; dead storage, 400 acre-feet or less.

Cooperation.- Gage-height record, furnished by Merced Irrigation District, obtained in 

connection with a Federal Power Commission project.

Contents, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

_

-

-

-

-

3,620

3,610

3,610

3,580

3,580

3,750

4,070

4,340

4,510

4,650

4,810'

5,260

6,180

6,800

7,280

7,650

8,050

8,430

8,760

9,030

9,270

9,450

9,630

9,810

10,100

10,600

MOV.

11,100

11,700

12,300

12,800

13,300

13,800

14,100

14,403

14,600

14,900

15,100

15,303

15,503

15,700

15,800

16,000

16,200

16,403

16,600

16,800

16,900

'17,000

17,200

17,400

17,400

17,600

17,700

17,800

18,000

18,200

-

Dec.

18,300

18,500

18,700

18,800

19,000

19,100

19,300

19,400

19,500

19,703

19,800

20,003

20,200

20,300

20,400

20,500

20.600

20,900

21,100

21.300

21,400

21.700

21,800

21,900

22,100

22,200

22,400

22,500

22,700

22,800

23,000

Jan.

23,100

23,200

23,400

23,600

23,900

24,100

24,400

25,200

26,700

27,600

28,200

28,700

29,100

29,500

29,900

30,200

30,500

30,800

31,100

31,300

31,500

31,700

31,900

32,200

32,400

32,700

32,900

33,100

33,300

33,400

33,500

Feb.

33,800

34,000

34,100

34,200

34,603

34,800

35,200

35,400

35,500

35,900

36,200

36,400

35,800

37,003

37,200

37,500

37,800

38,100

28,500

38,900

39,200

39,600

40,100

40,500

40,800

41,200

41,600

42,000

42,500

_

-

liar.

42,800

43,200

43,600

44,000

44,300

44,700

45,030

45,300

45,700

46,000

46,400

46,700

47,103

47,800

48,500

49,100

50,100

51 , 000

52,100

53,200

54,000

54,600

55,300

51,300

64,300

66,400

68,000

69,500

71,000

72,800

74,300

Apr.

75,500

77,100

79,800

82,100

85,300

89,200

91,800

93,700

96,200

107,400

113,200

116,400

119,200

121,200

123,600

126,303

129,400

133,200

136,600

140,400

144,300

148,500

151,100

152,800

154,600

156,800

158,600

160,800

163,100

164,600

-

May

165, OOO.

165,000

165,300

166,500

169,900

173,700

180,300

184,500

186,900

188,900

191,000

194,100

198,300

204,200

210,800

219,300

228,100

236,200

240,300

242,500

243,900

244,900

247,300

253,000

260,200

269,203

279,100

283,200

282,900

282,400

282,400

June

282,100

282,400

284,000

285,100

283,500

282,600

283,700

284,800

284,800

284,000

283,200

283,200

283,200

283,200

283,700

284,300

284,300

284,030

284,000

284,000

284,300

284,500

284,500

284,500

284,500

284,503

284,500

284,300

284,300

284,300

-

July

284,000

283,200

281,600

280,000

278,100

275,700

273,400

271,100

268,500

266,400

264,000

261,500

259,200

256,800

254,030

251,000

248,000

245,100

242,200

239,400

236,000

232,900

229,900

226,500

223,200

219,800

216,600

213,000

209,700

206,400

202..900

Aug.

199,600

196,400

193,100

190,100

186,700

183,300

180,100

176,700

173,303

170,300

157,000

163,800

160,800

157,700

154,600

151,400

148,700

145,600

142,700

139,503

136,600

133,500

130,700

127,600

124,700

121,900

119,000

116,300

113,400

110,600

107,800

Sept.

105,000

102,400

99,600

96,800

94,000

91,400

88,500

85,600

82,500

79,700

76,800

73,800

70,900

67,800

64,900

62,200

59,300

56,600

54,300

51,900

49,500

46,900

44,400

41,700

39,100

36,500

34,100

31,900

29,700

28,103

-

Monthly elevation and contents, water year October 1947 to September 1948

Ca

Sept

Wa

Date

lendar year 1947....

29............. ....

30............ .....

.30. ................

ter year 1947-48. . . .

Elevation 

(feet)

529 3

-

545.9

-

Contents 

(acre-feet)

28,100

-

Change In contents 

during month 

(acre-feet)

-72,900

-79,700

+23,700

Contents estimated by Merced Irrigation District.
MERCED RIVER BASIN 251

Merced River at Exchequer, Calif.

Location.- Long distance water-stage transmitter, lat. 37 0 35', long. 120°17', on line between sees. 14 and 23, T. 4 S., R. 15 E., at Exchequer, 0.5 mile downstream from Lake

McClure, 0.7 mile downstream from Cotton Creek, and 5 miles northeast of Merced Falls;

recording receiver at power plant 0.5 mile upstream. Altitude of gage, about 400 feet

(from topographic map). 

Drainage area.- 1,035 square miles. 

Kecords available.- October 1922 to September 1948. November 1915 to October 1922 at site

 1 milt upstream. 

Average discharge.- 38 years (1916-48), 1,233 second-feet; affected by storage in Lake

McClure since Apr. 20, 1926. 

Extremes.- Maximum discharge during year, 6,310 second-feet June 9 (gage height, 8.48

feet); minimum, 29 second-feet Feb. 10.

1915-48: Maximum discharge observed, about 22,000 second-feet Jan. 17, 1916 (gage

height, 20.0 feet, site and datum then in use), from rating curve extended above 9,000

second-feet; minimum, 5 second-feet Jan. 5, 1935. 

Remarks.- Records excellent Apr. 23 to Sept. 30, good for remainder of year. No large

diversions above station. Flow regulated by Exchequer power plant and Lake McClure

beginning in April 1926 (see preceding page). 

Cooperation.- Assistance in collecting gage-height record and two discharge measurements

furnished by Merced Irrigation District.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.1 

1.5 

2.0 

2.5

148

217

327

498

716

3.5 

4.0 

4.5

5.0

975

1,270

1,610

1,990

2,400

5.5 

6.0 

6.7 

7.4 

8.3

2,850 

3,320 

4,070 

4,9OO 

6,060

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

11

12

13

16

18

19

20

21

23

25

26

27

28

29

Oct.

36

35

37

37

38

36

35

45

50

51

51

51

51

51

51

51

51

51

51

51

50

50

50

50

50

50

50

Nov.

52

51

50

51

52

50

50

52

52

52

52

52

53

53

53

55

55

55

53

53

50

51

51

52

52

52

52

52

53

53

~

Dec.

53

53

53

53

53

53

53

45

41

41

41

41

41

41

41

41

42

42

42

42

42

42

42

42

42

42

42

42

42

42

42

Jan.

42

42

42

42

42

42

43

43

43

43

43

43

43

42

42

41

42

41

41

41

42

42

42

42

42

42

43

43

43

43

43

Feb.

43

43

43

43

43

43

42

41

42

34

32

32

32

32

32

33

33

33

33

33

33

33

34

34

34

34

34

35

34

-

-

Month

December ....................................

Calendar year 1947 ......................

April ......................................

May. .......................................

September ..................................

Water year 1947-48 ......................

Mar.

32

33

33

33

33

33

33

33

33

33

33

33

34

34

34

33

33

33

33

32

33

33

33

f40

35

32

32

34

33

33

32

Apr.

32

32

33

33

34

33

33

34

36

38

35

34

32

32

32

32

32

32

32

66

123

117

606

726

721

975

1,030

1,080

926

1,250

-

Second 

foot-days

1,461

1,564

1,374

283,128

8,251

38,324

331,932

May

1,460

r,460

1,470

1,470

1,460

1,480

1,500

1,500

1,510

1,510

1,590

1,680

1,740

1,780

1,810

1,830

1,850

1,830

1,800

1,650

1,600

1,630

1,670

1,690

1,700

1,730

1,770

3,480

4,720

3,930

3,610

Maximum

51

53

3,150

1,430

6,050

June

3,510

3,340

3,530

4,820

4,710

3,880

3,770

4,900

6,050

5,920

5,260

4,790

4,360

4,140

3,750

3,590-

3,540

3,460

3,190

2,840

2,700

2,720

2,800

2,720

2,540

2,500

2,480

2,280

2,130

2,030

-

Minimum

35

50

41

34

32

32

774

32

July

1,990

1,980

1,990

1,990

1,990

1,970

1,940

1,890

1,870

1,860

1,850

1,870

1,880

1,880

1,900

1,930

1,940

1,950

1,940

1,930

1,930

1,930

1,930

1,930

1,930

1,930

1,910

1,890

1,890

1,880

1,850

Aug.

1,830

1,800

1,770

1,770

1,780

1,780

1,770

1,760

1,740

1,730

1,730

1,680

1,640

1,640

1,620

1,590

1,560

1,560

1,560

1,560

1,570

1,570

1,530

1,480

1,450

1,440

1,410

1,400

1,370

1,370

Mean

47.1

52.1

44.3

776

42.3

36.1

275

1,277

907

Sept .

1,370

1,360

1,330

1,330

1,340

1,330

1,430

1,430

1,430

1,390

1,390

1,390

1,390

1,350

1,250

1,180

1,130

1,160

1,220

1,260.

774

Runoff in 

ao re- feet

2,900

3,100

2,730

561,600

2,080

76,010

658,400

f Computed on basis of partly estimated gage-height record.
252 MERCED RIVER BASIN

Merced River near Stevinson, Calif.

Location.- Water-stage recorder, lat. 37°22', long. 120°56', in sec. 36, T. 6 S., R. 9 E., 

5 miles upstream from mouth and 6 miles northwest of Stevinson. Datum of gage is 56.09 

feet above mean sea level (levels by Bureau of"Reclamation).

Drainage area.- 1,274 square miles.

Records available.- October 1940 to September 1948.

Extremes.- Maximum discharge during year, 4,210 second-feet June 11 (gage height, 12.16 

feet); minimum, 68 second-feet Mar. 8.

1944-48: Maximum discharge, 4,960 second-feet May 10, 1945 (gage height, 13.15 feet); 

minimum, that of Mar. 8, 1948.

Remarks.- Records good. Practically entire flow is diverted above station during irrigation 

season; some return flow enters above. Flow regulated by Lake McClure (see p. 250).

Cooperation.- Fourteen discharge measurements furnished by Bureau of Reclamation. 

Discharge, in seoond-feet, water year October 1947 to September 1948

Day

1

?.

.1

4

5

6

7

8

9

10

11

12

13

14

15

16

17

1R

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

127

138

130

118

114

109

119

128

126

124

130

135

132

127

124

123

alZS

a!30

a!35

a!30

130

130

130

130

130

127

126

126

130

131

a!33

Nov.

a!35

a!38

140

f!40

f!40

147

148

153

153

156

156

154

154

156

158

161

162

165

162

165

173

175

175

175

173

171

167

167

165

164

-

Dec.

164

165

165

166

161

160

162

156

154

154

152

150

149

150

149

150

153

157

158

160

158

156

156

152

152

152

152

153

152

152

153

Jan.

150

148

148

147

147

143

147

145

145

145

145

148

148

145

145

145

145

149

149

148

145

143

135

130

128

128

121

119

114

108

110

Feb.

122

126

124

119

130

139

140

141

140

136

136

136

134

134

135

136

135

138

136

135

132

132

131

124

114

109

108

112

117

_

-

Month

December. ..................................

Calendar year 1947 ......................

April. .....................................

May. .......................................

September . ...................!.............

Water year 1947-48 ......................

Mar.

110

92

102

90

100

97

90

78

93

102

109

108

119

128

134

144

148

147

145

141

144

139

140

144

148

201

232

196

179

166

156

Apr.

152

145

148

152

152

154

175

190

175

169

222

328

278

249

225

201

190

180

173

164

157

156

152

158

144

135

127

131

211

252

-

Secondfoot-days

4,823

68,664

14 745

5,785

132,088

May

404

650

690

568

556

528

468

412

380

340

308

288

267

246

247

247

240

232

270

310

293

263

273

290

277

256

247

252

333

1,970

2,640

Maximum

166

1,140

193

263

4,200

June

2,780

2,690

2,460

2,380

2,910

3,470

3,140

2,640

2,960

3,810

4,200

3,940

3,430

3,170

2,810

2,540

2,300

2,180

2,050

1,920

1,670

1,430

1,270

1,270

1,190

1,080

a920

a870

a695

a545

-

Minimum

109

135

149

109

108

78

127

144

78

July

h454

a370

a315

a320

a335

a290

251

233

213

222

215

198

194

181

183

170

166

176

al80

164

156

147

140

157

175

169

144

137

145

146

156

Aug.

174

189

165

152

140

160

157

173

182

169

159

167

173

155

165

189

184

172

160

158

165

182

193

181

156

155

153

153

176

176

154

Mean

127

158

156

188

133

182

210

193

361

Sept.

157

164

147

146

184

213

176

174

154

144

164

177

175

168

175

184

206

233

240

223

197

190

188

199

216

219

263

251

224

234

-

Runoff in 

acre feet

7,830

9,420

9,570

136,200

8,550

7,440

8,180

10,800

29,250

12,900

10,290

11,470

262,000

a No gage height record; discharge interpolated, or computed on basis of recorded range in stage 

f Fragmentary gage-height record; discharge computed from partly estimated gage heights, 

h Computed from staff-gage reading.
MERCED RIVER BASIN 253

Tenaya Creek near Yosemite, Calif.

Location.- Water-stage recorder, lat. 37°44'33", long. 119°33'25", In Yosemite National 

fark, at bridge 0.7 mile upstream from mouth and 2.2 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 1948.

Average discharge.- 35 years (1913-48), 104 second-feet.

Extremes.- Maximum discharge during year, 1,220 second-feet May 26 (gage height, 4.73 

reet); minimum daily, 1.2 second-feet Oct. 5-7.

1904-9. 1912-48: 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, Dec. 2, 6-15, 1940.

Remarks.- Records good except those for periods of no gage-height record, which are fair-. 

No storage or diversion.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.5

1.5

1.5

1.5

1.2

1.2

1.2

1.5

1.5

1.7

7.4

7.2

7.2

9.2

10

102

98

41

29

24

33

23

38

14

12

10

9.2

9.2

36

50

48

Nov.

56

66

53

44

40

33

29

26

24

20

18

16

15

14

15

16

15

14

14

12

12

11

10

10

10

11

13

13

15

17

-

Dec.

17

15

13

12

11

11

10

10

9.2

9.2

8.2

8.2

8.2

8.2

7.7

.7

.7

.2

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.2

.6

Jan.

6.6

7.7

8.2

11

17

18

50

119

74

50

40

33

28

25

23

22

20

19

17

16

15

15

16

17

18

16

15

14

12

11

11

Feb.

10

9.2

3.2

3.2

8 2

3.2

7.7

3.2

10

11

11

10

10

11

12

13

15

15

13

13

14

13

20

17

IS

17

17

18

18

-

-

Month

October. ...................................

x'ovember ...................................

December. .................. ................

Calendar year 1947 ......................

January ....................................

February. ..................................

''arch ......................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1947-48 ......................

Mar.

19

19

18

17

17

18

17

18

18

18

17

17

18

19

22

24

20

24

29

26

30

36

37

36

29

34

47

5.3

48

44

44

Apr.

56

71

62

58

56

52

54

53

59

62

66

69

69

71

86

116

183

224 Sis

232

249

235

188

183

229

237

229

235

202

175

Secondfoot-days

611.7

662

279.0

26,766.7

76i.5

366.9

833

4,079

14,956

13,434

1,626

121.5

49.6

37,783.2

May

152

160

202

293

395

549

573

398

308

395

345

428

557

654

740

825

816

658

420

299

261

292

454

S13

748

861

743

597

497

435

377

Maximum

102

66

17

712

119

20

53

249

861

712

193

9.5

1.9

861

June

446

553

681

613

497

533

613

668

712

640

580

560

540

525

497

458

420

391

362

338

328

325

305

299

295

276

264

252

240

223

Minimum

1.2

10

6.6

1.0

6.6

7.7

17

52

152

223

10

1.9

1.5

1.2

July

193

162

136

112

91

73

58

54

60

64

70

65

60

54

50

48

38

30

24

22

21

19

18

17

15

14

13

12

12

11

10

Aug.

9.5

8.5

3.0

7.4

6.8

6.2

5.8

5.3

4.9

4.5

4.1

3.8

3.5

3.2

3.0

2.8

2.8

2.6

2.3

2.3

2.6

2.3

2.3

2.3

2.3

2.1

2.1

2.1

2.1

2.1

1.9

Mean

19.7

22.1

9.00

73.3

24.7

12.7

26.9

136

482

448

52.5

3.92

1.65

103

Sept.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1. -

1.

1.

1.

1.7

1.7

1.5

1.5

1.5

1.5

1.7

1.5

1.5

1.5

1.5

Runoff in 

acre-feet

1,210

1,310

553

53,O80

1,520

728

1,650

8,090

29,66O

26,650

3,230

241

98

74,940
254 MERCED RIVER BASIN

Merced River Slough near Newman, Calif.

Location.- Water-stage recorder, lat. 37°22', long. 120°58', in NE£ sec. 3, T. 7 S., R. 

9 K., 0.1 mile downstream from bridge, 0.2 mile downstream from head of slough between 

Merced and San Joaquin Rivers, and 4.5 miles northeast of Newman. Datum of gage is 

54.44 feet above mean sea level (levels-by Bureau of Reclamation). Prior to July 21, 

at site 0.1 mile upstream, at datum 2.00 feet higher.

Records available.- October 1941 to September 1948.

Extremes.- Maximum discharge during year, 628 second-feet June 11 (gage height, 6.23 feet) 

no flow for several months.

1944-48: Maximum discharge, 990 second-feet" May 10, 12, 1945 (gage height, 7.50 

feet); no flow for several months each year. ,

Remarks.- Records good. Slough flows from Merced River to San Joaquin River, bypassing 

gaging station on San Joaquin River near Newman.

Cooperation.- Three discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

fl

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

December. ...................................

Calendar Jear 1947 ......................

March. .....................................

Hav.

September. .................................

Water year 1947-48 ......................

Mar. Apr.

Seoondfoot-days

0

0

0

123.9

0

0

7,579.5

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

128

283

Maximum

0

0

0

40

0

0

283

0

620

June

319

305

253

232

343

473

405

298

354

534

620

570

466

416

336

270

209

184

157

131

85

53

37

37

30

23

13

9.8

4.3

.8

-

Minimum

0

0

0

0

0

0

0

0

0

July

0.3

.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

0

Aug.

Mean

0

0

0

.34

0

0

0

o-zq

0

20.7

Sept.

Runoff in' 

acre-feet

0

0

0

246

0

0

0

15,040

ORESTIMBA CREEK BASIN 

Orestimba Creek near Newman, Calif.

Location.- Water-stage recorder, lat. 37°19'09", long. 121°07'14", in NW£ sec. 20, T. 7 S., 

E~! B E. , at highway bridge 3 miles downstream from Oso Creek and 5 miles west of Newman. 

Datum of gage is 191.86 feet above mean sea level (unadjusted). 

Drainage area.- 129 square miles.

Records available.- January 1932 to September 1948. 

Average discharge.- 16 years, 17.5 second-feet. 

Extremes.- No now during year.

1932-48: Maximum discharge, 4,900 second-feet Jan. 21, 1943 (gage height, 5.95 feet), 

from rating curve extended above 1,200 second-feet by logarithmic plotting on basis of 

slope-area computations at gage heights 4.26 and 5.24 feet; no flow during several 

months each year.. 

Remarks.- No flow since May 19, 1946. No storage or large diversion.
TUOLUMNE RIVER BASIN 255 

Ketch Hetchy Reservoir at Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°57', long. 119M7 1 , in NW^ sec. 16, T. IN., R. 20 

E., at O'Shaughnessy Dam on Tuolumne River at Hetch Hetchy in Yosemite National Park, 

1.5 miles downstream from Falls Creek. Datum of gage is at mean sea level (levels by 

city of San Francisco).

Drainage area.- 460 square miles.

Records available.- May 1923 to September 1948 (1923-30, gage heights only).

Extremes.- Maximum contents during year, 347,800 acre-feet June 14-16 (elevation, 3,799.6 

feet); minimum, 39,000 acre-feet Feb. 21 (elevation, 3,579.4 feet).

1923-48: Maximum contents, 354,100 acre-feet June 1, 1943 (elevation, 3,802.8 feet); 

no contents at times in 1929, 1930, 1931.

Remarks.- Reservoir is formed by concrete gravity-type dam, completed to crest elevation 

3,72b.5 feet in 1923 and raised to 3,812.0 feet in 1937; storage began Apr. 6, 1923. 

Capacity, 340,400 acre-feet between elevations, 3,518.0 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 reenters 

Hetch Hetchy aqueduct and flows into Crystal Springs Reservoir, which supplies city of 

San Francisco. Surplus water is spilled into Don Pedro Reservoir at Red Mountain Bar. 

Hetch Hetchy Reservoir is main storage unit of Hetch Hetchy water-supply system for San 

Francisco. Records show contents at 12 p.m., all of which is available for release.

Contents, in acre-feet, water year October 1947 to Septembe

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IB

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

157,700

156,400

155,200

153,800

152,400

150,800

149,400

148,000

146,800

145,800

144,800

143,930

142,800

141,930

140,800

140,800

141,500

141,500

141,200

140,800

140,400

139,900

139,400

138,500

137", 800

137,000

136,100

135,000

134,300

133,900

133,200

Nov.

133,000

132,600

132,100

131,400

130,700

130,400

129,500

128,500

127,500

125,800

124,500

123,400

122,100

120,900

119,800

118,600

117,600

116,500

115,300

114,200

113,000

111,800

110,500

109,400

108,200

107,100

106,100

105,000

103,900

102,900

-

Deo.

101,800

100,500

99,400

98,200

97,000

95,800

94,700

93,600

92,400

91,100

89,900

88,600

87,400

86,200

85,000

83,900

83,000

82,000

80,800

79,800

79,600

78,600

77,500

75,800

75,000

74,000

73,000

72,800

71,700

70,700

69,800

Jan.

68,800

68,000

67,200

66,400

65,800

65,100

64,400

65,400

66,900

67,000

66,600

65,600

65,000

64,200

63,700

62,800

62,100

61,200

60,300

59,500

58,600

57,900

56,900

56,200

55,400

54,700

53,800

53,000

52,200

51,500,

50,700

Feb.

50,000

49,200

48,500

47,800

47,200

46,500

45,800

45,300

44,900

44,300

43,800

43,100

42,500

41,900

41,300

40,600

40,200

39,800

39,400

39,100

39,000

39,500

39,900

39,900

39,700

39,500

39,300

39,300

39,500

-.

-

Mar.

39,700

39,700

39,600

39,500

39,400

39,200

39,200

39,400

39,300

39,200

39,200

39,300

39,500

39,900

40,100

40,500

40,8OO

41,300

41,700

42,100

42,700

43,100

43,500

44,300

44,600

44,800

44,800

45,000

45,000

45,000

45,000

Apr.

45,100

45,600

46,000

46,200

46,500

46,900

47,000

47,000

47,400

48,500

48,800

49,000

49,000

49,000

49,700

51,000

53,300

55 , 100

56,800

58,600

60,700

62,800

64,200

65,700

67,500

69,500

71,300

73,100

' 74,600

75,500

-

Hay

76,400

77,300

78,800

81,300

84 , 800

90,900

96,600

100,400

103,200

105,800

108,900

113,000

118,800

126,200

134,700

144,800

154,700

162,700

167,200

170,100

172,300

174,900

179,600

187,500

198,100

210,600

222,900

231,200

237,200

242,500

246,400

June

250,700

257,300

266,100

274,600

280,400

286,200

293,300

301,800

312,600

323,000

332,000

341,200

346,800

347,800

347,800

347,800

347,600

347,400

347,000

347,000

347,200

347,200

347,000

347,400

347,600

347,600

347,400

347,200

346,800

346,500

-

July

346,300

345,700

345,100

344,500

343,900

343,500

343,500

343,500

343,500

343,500

343,500

343,500

343,400

343,200

343,000

343,000

342,800

342,600

342,000

341,600

340,800

340,300

339,700

338,900

337,900

337,000

336,200

335,400

334,700

333,900

332,900

Aug.

332,200

331,200

330,400

329,500

328,500

327,600

326,800

325,900

324,900

324,000

323,000

322,100

321,100

320,200

319,200

318,300

317,300

316,400

315,400

314,500

313,400

312,400

311,500

310,400

309,300

308,300

307,400

306,300

305,300

304,400

303,100

Sept.

301,800

300,300

298,800

297,500

296,100

294,800

293,500

292,200

290,900

289,500

288,200

286,700

285,400

284,200

282,700

281,300

280,000

278,600

277,100

275,800

274,200

272,800

271,400

270,100

268,500

267,300'

265,900

264,500

263,100

261,700

-

Monthly elevation and contents, water year October 1947 to September 1948

Date

Calendar year 1947 

AUK 31

Sept. 30. ...............

Water year 1947-48. . .

Elevation 

(feet)

3,689.2 

3,670.4 

3,645.3

3,613.0

-

3,592.6 

3,580.0 

3,586.3 

3,619.0 

3,744.4 

3,798.9 

3,791.9 

3,776.1 

3,753.2

-

Contents 

(acre-feet)

159,100 

133,200 

102,900 

69,800

-

50,700 

39,500 

45,000 

75,500 

246,400 

346,500 

332,900 

303,100 

261,700

-

Change in contents 

during month 

(acre-feet)

-25,900 

-30,300 

-33,100

-50,600

-19,100 

-11,200 

+5,500 

+30,500 

+170,900 

+100,100 

-13,600 

-29,800 

-41,400

+102,600
256 TUOLUMNE RIVER BASIN

Tuolumne River near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°56', long. 119°48', in SEij sec. 17, T. IN., R. 

HU K., in Yosemite National Park, 1 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 1948.

Average discharge.- 33 years (1915-48), 977 second-feet.

Extremes.- Maximum discharge during year, 5,190 second-feet June 15 (gage height, 10.95 

feet); minimum, 4.2 second-feet Jan. 27.

1915-48: Maximum discharge, 12,900 second-feet June 1, 1943 (gage height, 13.90 

feet), from rating curve extended above 10,000 second-feet; reservoir full and 

spilling; minimum, 1JL second-feet Jan. 18, 1931.

Remarks.- Records excellent. Flow regulated by Hetch Hetchy Reservoir beginning in 

April 1923 (see preceding page): no diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

742

745

736

733

742

745

754

754

745

742

694

658

691

703

697

700

670

635

625

625

622

622

620

625

628

622

638

769

763

760

754

Nov.

754

751

748

742

751

760

751

748

739

733

736

748

763

760

760

757

754

751

751

748

745

745

742

739

736

733

733

730

727

745

-

Dec.

757

754

751

748

745

742

739

751

754

748

745

742

739

733

736

718

667

646

630

620

620

615

600

590

588

585

580

578

575

572

570

Jan.

568

565

565

562

560

558

555

560

562

562

562

560

558

555

552

565

572

570

568

552

555

552

550

548

545

496

505

514

516

494

484

Feb.

480

480

478

474

472

456

420

404

380

380

406

450

464

462

440

414

412

410

362

308

176

9.9

9.6

201

276

276

276

200

71

-

Month

December ...................................

Calendar year 1947 .......................

March. .....................................

April. .....................................

May. .......................................

July. ..................:...................

September. .................................

Water year 1947-48 ......................

Mar.

147

208

208

208

208

208

79

151

208

208

136

90

91

95

97

102

109

76

21

19

18

74

191

213

245

-426

448

434

446

466

476

Apr.

476

476

436

460

442

375

408

476

502

305

476

555

605

633

649

646

655

664

655

652

658

670

540

474

496

502

486

504

514

518

Secondfoot days

22,380

20,938

289,706

16,990

10,051.5

6,L06

15,907

16,738

34,213

17,487

21,564

284,033.5

May

520

516

522

510

506

514

524

528

532

534

530

516

522

530

542

542

555

545

536

545

550

555

562

550

558

582

582

560

555

565

550

Maximum

769

763

757

2,270

572

476

670

582

3,220

61*

760

4,890

June

522

518

526

534

540

545

532

530

536

545

673

769

2,060

4,620

4,890

4,710

4,490

4,330

4,000

3,980

3,840

4,110

3,890

3,980

4,330

4,510

4,190

4,110

3,820

3,470

-

Minimum

620

727

570

'565

484

9.6

18

305

506

518

620

540

685

9.6

July

3,220

2,830

2,380

1,990

1,580

1,270

1,130

1,090

1,080

1,090

1,130

1,090

1,010

909

846

800

784

775

784

784

772

745

745

745

745

745

664

620

620

620

620

Aug.

618

618

608

602

600

582

575

575

572

572

555

548

548

548

548

545

545

545

542

542

542

540

548.'

550

548

548

545

545

560

578

595

Mean

695

746

675

794

548

347

197

530

540

2,670

1,104

564

719

776

Sept.

685

760

748

730

721

709

706

706

703

700

709

715

712

709

706

712

724

730

727

724

721

721

721

727

727

724

724

724

721

718

-

Runoff in 

acre feet

42,760

44,390

41,530

574,700

33,700

19,940

12,110

31,550

33,200

158,900

67,860

34,680

42,770

563,400
TUOLUMNE RIVER BASIN

Don Pedro Reservoir near La Grange, Calif.

Location.- Water-stage recorder, lat. 37°42'48", long. 120°24'14", In Sw£ sec. 35, T. 2

 a., H. 14 E., at Don Pedro Dam on Tuolumne River, 1 mile downstream from Rogers Creek 

and 5.5 miles upstream from La Grange. Datum of gage is at mean sea level (levels by 

Turlock Irrigation District).

Drainage area.- 1,539 square miles.

Records available.- October 1924 to September 1948 (1924-30, gage heights only).

Extremes.- Maximum contents during year, 290,500 acre-feet June 24 (elevation, 605.6

 feet); minimum, 42,400 acre-feet Dec. 31 (elevation, 490.5 feet).

1924-48- Maximum contents, 392,100 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. Capacity, 260,000 acre-feet between elevations 476 feet 

(mutually agreed-upon minimum) and 605.55 feet (top of drum-type spillway gates) above 

mean sea level. Water pisses through power plant at dam and down Tuolumne River to La 

Grange Dam, 4 miles downstream, where it is diverted into Turlock and Modes to Canals 

for irrigation. This reservoir is operated jointly by Turlock and Modesto Irrigation 

Districts. Records show total contents at 12 p.m., of which 30,000 acre-feet (mutually 

agreed-upon minimum) is not available for release.

Cooperation.- Water-stage recorder graph furnished 

Districts.

Turlock and Modesto Irrigation

Contents, in 3-feet, water year October 1947 to. September 1948

-,,

1

2

3

4

5

6

7

8

9"0

'I

'2

'3

"4

"5

"8

"7

' J3

"9

 V

 >i

xl»

'"*3

"4

"5

 ^

"7

- f^

"^

"0

~\

Got.

44,200

44,200

44,200

44,400

44,800

44,800

44,900

45,200

45,600

46,600

48,503

49,600

50,200

50,600

51,400

51,900

55,100

57,200

58,400

58,900

59,400

60,000

60,600

61,100

61,600

62,100

62,400

62,800

63,400

65,300

66,600

Nov.

67,000

37,800

68,400

68,600

68,800

68,800

68,800

68,800

69,000

68,800

68,800

63,500

68,200

68,000

67,700

67,700

37,400

55,900

66,600

66,200

65,800

65,500

65,300

64,600

63,900

63,300

63,300

62,800

62,600

62,600

-

Dec.

62,100

31,600

61,100

60,600

59,600

59,000

58,600

57,500

56,600

55,600

54,600

53,700

53,200

52,800

51,900

51,300

50,400

49,800

48,700

48,000

47,500

46,600

46,100

45,500

45,600

44,900

44,400

44,400

43,600

43,000

42,400

Jan.

42,800

42,800

43,700

44,800

45,500

46,300

47,100

49,700

52,100

53,500

54,600

55,100

55,800

56,500

57,100

57,700

58,400

59,100

59,600

60,200

60,900

61,400

62,000

62,600

63,400

63,900

64,300

64,900

65,300

65,500

65,900

Feb.

66,300

66,600

68,900

.67,300

67,800

68,500

69,300

69,900

70,400

71,400

72,100

72,900

73,700

74,400

75,100

75,800

76,400

77,100

77,900

78,400

78,700

78,900

78,900

79,300

79,600

80,100

80,500

80,800

81,100

_

-

Mar.

81,600

82,200

82,600

82,900

83,600

83,900

84,200

84,500

84,700

85,100

85,600

86,400

86,900

87,800

88,500

89,500

91,500

92,400

93,800

95,200

95,900

96,600

97,700

105,100

110,100

113,900

116,600

118,800

121,200

123,900

126,400

Apr.

128,900

131,900

137,000

140,500

147,000

153,300

157,200

159,900

163,400

174,100

179,800

184,000

188,300

191,600

195,400

199,800

205,200

211,400

215,600

219,400

224,000

228,600

231,800

234,200

237,100

240,100

241,900

243,600

244,500

245,700

-

Hay

245,700

245,400

245,100

245,400

246,900

250,500

256,300

258,700

259,600

259,600

259,300

259,900

261,800

264,800

266,700

268,900

271,000

272,000

271,700

270,400

268,900

267,600

267,000

268,600

271,300

274,800

276,700

275,400

275,400

275', 100

274,800

June

274,800

276,000

276,000

277,300

275,700

274,800

277,600

280,400

282,600

282,600

279,200

275,400

271,000

272,300

274,800

275,700

275,700

275,400

277,900

281,000

284,500

288,300

289,900

290,500

289,900

289,900

289,600

289,300

289,600

289,600

-

July

289,900

289,900

288,600

287,400

285,500

284,500

283,600

282,300

281,000

279,500

277,900

276,700

275,100

273,200

271,300

269,200

266,700

264,200

261,803

259,300

256,600

254,100

251,400

248,700

245,700

243,000

240,400

237,400

234,500

231,500

228,600

Aug.

225,100

222,000

218,800

215,300

211,900

209,000

205,700

202,400

198,500

195,200

191,300

187,800

183,800

180,100

176,200

172,300

168,400

164,600

160,900

156,900

153,300

149,100

145,000

141,200

137,200

133,200

129,300

125,200

121,000

116,600

112,600

Sept.

109,300

106,100

103,200

100,900

98,700

96,500

94,000

91,500

89,200

86,700

84,700

83,400

81,300

79,200

77,100

74,800

72,800

70,800

69,200

66,700

63,900

61,400

59,500

57,700

56,400

55,300

53,400

51,600

49,900

48,000

-

Monthly elevation and contents, water year October 1947 to September 1948

Cal

Mar.

Hay

July

Sept.

Wat

Date

endar year 1947. . . .

31..... ............

31.. ...............

30. ................

31....... ..........

31...... ...........

30.... .............

er year 1947-48. . . .

Elevation 

(feet)

-

591 1

496.1

-

Contents 

(acre-feet)

-

48,000

-

Change In contents 

during month 

(acre-feet)

-37,200

-64,600

+3,900
Location - Water-stage recorder, lat. 37°42'35", long. 120°24'45", in NE£ sec. 3, T. 33., 

H. 14 E., 0.5 mile downstream from Don Pedro Dam, 3.5 miles upstream from La Grange 

Dam, and 5 miles upstream from La Grange. Altitude of gage, about 330 feet (from topographic map) .

Drainage area.- 1,540 square miles.

Records available.- March 1915 to September 1948. August 1895 to September 1917 at La 

Grange Uam, 3.5 miles downstream; records equivalent if flow of Yosemite Power Co. 

canal (abandoned in 1926) and Modesto and Turlock Canals is added to flow at La Grange 

Dam.

Average discharge.- 53 years (1895-1948), 2,559 second-feet, using 1895-1916 records of

combined flow of river and canals, and including Hetch Hetchy diversion to San Francisco.

Extremes.- Maximum discharge during year, 7,260 second-feet June 26 (gage height, 13.47 

feet); minimum, 22 second-feet Mar. 7.

1895-1948: Maximum discharge, 60,300 second-feet 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; maximum gage height at 

present site, 29.6 feet Mar. 25, 1928; minimum discharge, 0.5 second-foot on many days 

in October and November 1931.

Remarks.- Records excellent. Flow regulated by Don D edro power plant, Don Pedro Reservoir 

(see preceding page), Hetch Hetchy Reservoir (see p. 255), and Lake Eleanor (see p. 262). 

A small amount of water is diverted above station for irrigation. Diversion through 

Hetch Hetchy aqueduct to San Francisco began Oct. 19, 1934; for present year it 'amounted 

to an average of 95 second-feet.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

4.5 62 5.8 340 7.0 860 9.5 2,780 

4.7 90 6.1 445 7.5 1,170 10.0 3,230 

4.9 125 6.3 525 8.0 1,530 11.0 4, ISO 

5.2 187 6.5 615 8.5 1,930 12.0 5,300 

5.5 257 6.8 755 9.O 2,330 13.3 7,O2O

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

649

660 

659 

591 

368

613 

674 

560 

586 

487

416 

344 

467 

476 

449

487 

374 

354 

249 

495

580 

581 

566 

581 

485

397

537 

601 

566 

494 

525

Nov.

898 

705 

932 

958 

945

959 

982 

841 

641 

907

782 

963 

978 

922 

965

677 

998 

1,050 

1,010 

1,030

985 

927 

724 

1,050 

1,060

1,080 

710 

949

882 

684

Dec.

1,130 

1,090 

1,130 

1,130 

1,280

1,090 

830 

1,250 

1,270 

1,250

1,360 

1,240 

1,030 

820 

1,160

1,150 

1,250 

1,190 

1,250 

1,190

805. 

1,110 

1,090 

1,070 

625

1,040 

1,030 

675 

1,110 

1,050 

1,100

Jan.

429

712 

540 

398 

633

637 

590 

480 

503

436

307 

523 

545 

485 

481

510 

398 

302 

483 

467

447 

475 

477 

385 

274

472 

502 

497 

488 

472 

417

Feb.

311 

419 

432 

485

451

409

318 

173 

382 

380

409 

338 

326 

270 

156

298 

350 

378 

373 

329

231 

168 

233 

362 

356

352

341 

210 

140

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febri 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1947

r: ......................................

ter vear 1947 48 .......................

Mar.

378 

230 

267 

256 

262

197 

90 

206 

283 

242

234 

221 

217 

129

191

296

260 

196 

187 

115

66 

161 

240 

256 

223

170 

138 

379 

238 

217 

186

Apr.

1,

1, 

1,

1 

1, 

1,

1, 

1,

z, 

z, 

z,

Secondfoot-days

15,871 

27,194 

33,795

523,426

14,765 

9,380 

6,731 

24,693 

115,460 

155,660 

77,510 

74,810 

52,600

608.469

206 

260 

203 

145 

213

196 

169 

249 

241 

200

215 

157 

198 

210

208

228 

205 

150 

890 

020

240 

340 

470 

500 

370

620 

940 

750 

950 

950

May

2,930 

2,770 

2,930 

2,960 

2,960

2,960 

2,960 

2,960 

2,930 

3,190

3,340 

3,360 

3,350 

3,590 

4,280

4,600 

5,300 

5,180 

4,330 

3,920

3,720 

3,510 

3,320 

3,470 

3,780

4,270 

5,460 

5,220 

4,020 

3,950 

3,940

Maximum

674 

1,080 

1,360

3,130

712 

485 

379 

2,950 

5,460 

6,940 

4,500 

2,550 

2,150

6.940

June

3,360 

3,410 

4,000 

4,300 

4,830

4,260 

3,320 

3,070 

4,040 

4,950

5,760 

6,310 

6,260 

6,220 

6,590

6,870 

6,940 

6,890 

5,000 

4,160

4,180 

4,400 

5,440 

5,630 

6,420

6,400 

6,060 

6,050 

5,430 

 5,110

July

4,500 

4,240 

4,170 

3,460 

3,170

2,530 

2,180 

2,190 

2,190 

2,190

2,190 

2,190 

2,200 

2,200 

2,210

2,210 

2,220 

2,210 

2,200 

2,200

2,200 

2,210 

2,220 

2,240 

2,240

2,240 

2,250 

2,250 

2,270 

2,260 

2,280

Minimum

249

641 

625

249

274 

140 

66 

145 

2,770 

3,070 

2,180 

2,240 

1,130

66

Aug.

2,280 

2,290 

2,300 

2,340 

2,350

2,250 

2,240 

2,250 

2,390 

2,420

2,440 

2,460 

2,470 

2,490 

2,500

2,530 

2,550 

2,430 

2,410 

2,420

2,440 

2,450 

2,420 

2,440 

2,460

2,470 

2,460 

2,450 

2,460 

2,470 

2,480

Mean

512

906 

1,090

1,434

476 

323 

217 

823 

3,725 

5,189 

2,500 

2,413 

1,753

1.662

Sept.

2,150 

2,070 

2,120 

2,010 

1,600

1,720 

1,930 

1,960 

2,000 

2,040

1,690 

1,320 

1,840 

1,820 

1,840

1,830 

1,760 

1,690 

1,310 

1,870

1,980 

1,950 

1,650 

1,570 

1,420

1,130 

1,560 

1,590 

1,590 

1,590

Runoff In 

acre-feet

31,480 

53,940 

67,030

1,038,000

29,290

18,600 

13,350 

48,980 

229,000 

308,700 

153,700 

148,400 

104,300

1.207.000

Note.- Discharge for periods Feb. 1 to Apr. 18, Apr 

urlock and Modesto Canals

22-3O and July 5 to Sept. 22 Is sum of flow
TUOLUMNE RIVER BASIN 259

Tuolumne River at Modesto, Calif.

Location.- Water-stage recorder, lat. 37°37i40", long. 120°59'20", in SWij sec. 33, T. 3 

5., K. 9 E., at railroad bridge at Modesto, 0.3 mile downstream from Dry Creek. 

Datum of gage is mean sea level, unadjusted (levels by Modesto Irrigation District).

Records available - 1878-84, 1891-97 (gage heights only); October 1943 to September

Iy4H.March 1940 to December 1948 in reports of Division of Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 4,570 sacond-feet June 18 (gage height, 46.58 

reet); minimum, 203 second-feet Mar. 6, 8, 10.

1943-48: Maximum discharge, 8,070 second-feet Feb. 5, 1945 (gage height, 51.32 

feet); minimum observed,189 second-feet July 5, 1947.

Remarks.- Records fair. Flow regulated by reservoirs and power plants above station. 

Many diversions above station for irrigation. See "Remarks" for Tuolumne River above 

La Grar:ge Dam, near La Grange.

Cooperation.- Records collected and prepared in cooperation with Division of Water

Kesources, Department of Public Works, State of California. Twelve discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.0 9.0 2.1 63 4.5

1.1 12 2.3 79 5.0

1.2 15 2.6 108 5.5

1.3 18 2.9 140 6.0

1.5 26 3.3 188 6.5

1.7 36 3.7 245 7.0

1.9 48 4.0 292 7.5

380 8.0 1,640

480 8.5 2,010

590 9.0 2,440

730 9.5 2,930

895 10.0 3,570

1,090 10.5 4,350

1,330 11.0 5,290

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

986

882

844

844

830

724

763

830

840

910

844

727

604

727

772

739

775

721

604

517

682

850

861

861

861

833

709

721

850

850

847

Nov.

819

1,160

1,050

1,220

1,290

1,270

1,280

1,310

1,160

954

1,160

1,070

1,190

1,250

1,330

1,290

1,030

1,290

1,370

1,330

1,360

1,090

946

872

868

875

861

844

847

836

-

Dec.

836

858

864

889

900

903

854

833

847

833

826

833

830

826

822

816

847

830

868

889

854

844

840

840

833

826

819

822

822

830

826

Jan.

833

730

787

787

649

760

778

778

742

733

703

607

685

694

703

703

721

679

543

658

700

703

703

691

625

506

613

658

667

664

658

Feb.

643

408

314

288

282

282

266

266

257

255

247

244

240

232

228

226

228

226

228

228

226

226

226

230

228

224

224

232

224

-

Month

October. ...................................

November. .......................... ......

December. ........... ......................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

Hay. .......................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1947-48 ......................

Mar.

220

220

216

214

212

208

206

212

212

208

208

208

242

242

247

255

257

257

284

284

259

266

253

262

288

667

457

329

284

259

247

Apr.

Secondfoot-clays

24,408

33,222

26,160

216,232

21,461

7,628

8,183

9,757

43,848

90,980

15,944

9,171

11,260

302,022

236

234

251

244

298

314

430

362

312

282

275

457

354

305

270

249

234

222

216

379

718

503

324

273

264

251

234

251

509

506

-

May

424

563

872

861

844

830

819

861

836

850

840

844

844

772

878

1,330

1,700

2,510

2,400

1,780

1,450

1,340

1,160

1,010

1,280

1,960

2,360

3,810

2,820

2,160

2,840

Maximum

986

1,370

903

1,370

833

643

667

718

3,810

4,540

2,460

352

822

4,540

June

3,080

2,440

2,580

2,920

3,220

3,410

2,640

1,540

1,190

2,010

2,590

3,480

3,730

3,850

3,850

4,150

4,450

4,540

4,400

2,210

1,740

1,720

2,080

2,980

3,040

3,880

3,610

3,460

3,440

2,750

Minimum

517

819

816

189

506

224

206

216

424

1,190

253

262

255

206

July

2,460

1,,660

1,460

1,410

950

589

457

379

356

324

319

324

288

293

298

279

277

277

282

266

273

270

259

259

262

253

275

273

279

291

302

Aug.

322

3

 3

3

12

00

05

302,

307

7

7

3

17

52

44

334

324

3

3

3

19

22

02

295

298

2

2

2

84

86

86

284

268

2

2

2

70

88

79

268

268

2

2

2

2

62

66

64

70

273

Mean

787

1,107

844

592

692

263

264

325

1,414'

3,033

514

296

375

825

Sept.

268

264

264

264

277

268

268

268

262

262

259

262

262

266

264

270

262

262

288

273

266

259

255

411

742

799

787

778

808

822

Runoff in 

acre- feet

48,410

65,890

51,890

428,900

42,570

15,130

16,230

19,350

86,970

180,500

31,620

18,190

22,330

599,100
260 TUOLUMNE RIVER BASIN

Falls Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder, let. 37°58', long. 119°46', in NE-jj sec. 3, T, IN., R. 

20 E., in Yosemite National Park, 0.2 mile upstream from Wampana Falls, 1 mile upstream from mouth, and 2 miles northeast of Hetch Hetchy. Altitude of gage, about 

5,600 feet (from topographic map).

Drainage area.- 45.2 square miles.

t> Records available.- November 1915 to September 1948.

Average discharge.- 32 years (1916-48), 140 second-feet.

Extremes.- Maximum discharge during year, 1,100 second-feet May 27 (gage height, 5.80 

 i'eet); no flow Oct. 1-9, Sept. 12-30.

1915-48: Maximum discharge, 6,300 second-feet Dec.'11, 1938 (gage height, 8.90

feet), from rating curve extended above 1,250 second-feet on basis.of velocity-area

studies; no flow at times during several summers.

Remarks.- Records good. No storage or diversion. 

Revisions (water year).- W 531: 1917(M): W 931: 1938.

Hating table, water year 1947-48, except period of Ice effect 

(gage height, In feet, and discharge, in second-feet)

1.35 0

1.4 .1

1.5 .2

1.6 .3

1.7 .5

2.0 

2.2 

2.4 

2.6

0.8 

2.1 

4.6 

9.5 148

220

4.2 

4.5 

5.0 

5.3 

5.6

307

409

605

780

955

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0

0

0

0

0

0

0

0

0

22

39

22

12

12

12

64

282

159

99

81

83

71

53

40

34

31

30

30

93

146

115

Nov.

135 46

19

92 ,

73

53

48

-42

40

32

30

*27

23

21

24

27

26

26

24

21

20

18

17

16

16

19-

24

28

29

33

-

Dec.

34

28

24

23

21

19

18

b!7

b!8

*b!8

16

16

14

14

13

13

14

2020 "

19

17

16

16

16

16

17

17

16

16

b!4

15

Jan.

13

38

44

55

54

45

124

424

220

121

74

56

45

*39

34

31

28

27

24

23

21

21

21

22

22

21

19

19

17

16

16

Feb.

15

15

b!4

b!4

b!6

b20

25

24

24

27

26

26

27

27

28

34

40

40

35

35

38

59

49

38

34

36

36

38

41

_

-

Month

December. ...................................

Calendar year 1947 .......................

March. .....................................

April. .....................................

May. .......................................

July.. .....................................

September ..................................

Water year 1947-48 ......................

Mar.

39

37

32

31

30

30

28

*30

32

30

30

28

32

38

43

42

44

50

45

45

46

56

66

59

50

62

80

85

71

64

71

Apr.

109

117

96

78

70

60

66

64

80

18

68

71

83

105

155

184

301

276

288

301

310

307

217

212

247

256

273

276

204

163

Secondfoot-days

1,249

555

36,160.6

1,734

881

1,426

3.4

47,741.4

May

148

166

207

282

380

521

605

441

317

273

307

395

525

650

695

820

840 722'

431

267

197

199

317

570

744

906

955

570

491

431

329

Maximum

282

146

34

885

424

59

85

310

955

820

.6

955

June

307

472

596

749

506

445

615

655

796

820

695

732

610

710

640

596

579

541

525

541

483

529

487

513

561

579

533

545

475

438

Minimum

0

16

13

0

13

14

28

60

148

307

15

0

0

July

427

356

270

223

168

131

121

121

119

121

125

113

98

83

76

71

66

56

48

43

39

35

33

30

26

23

21

19

17

16

15

Aug.

14

13

12

12

10

9.8

9.2

8.1

7.3

6.4

5.8

5.4

4.6

4.1

3.6

3.2

2.9

2.7

2.5

2.3

2.1

1.9

1.8

1.6

1.5

1.4

1.2

1.1

1.0

.8

.7

Mean

49.4

41.6

17.9

99.1

55.9

30.4

46.0

171

474

576

100

4.97

.11

130

Sept.

0.6

.5

.4

.4

.4

.3

.2

.2

.2

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Runoff in 

acre- fee t

3,030

2,480

1,100

71,720

3,440

1,750

2,830

10,170

29,160

34,260

6,170

305

6.7

94,700

Peak discharge (base, 690 sec.-ft.).- May 17 (6 a.m.) 920 sec.-ft.; May 27 (7 a.m.) 1,100 sec.-ft. 

June 10 [8 a.mTj 955 sec.-ft.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
TUOLUMNE RIVER BASIN 261

Cherry Creek near Hetoh Hetchy, Calif.

Drainage area.- Ill square miles.

Records available.- April 1910 to September 1948.

Average discharge.- 38 years, 366 second-feet.

Extremes.- Maximum discharge during year, 3,200 second-feet May 26 (gage height, 8.06 

reet); minimum, 0.6 second-foot Sept. 11, 14, 15.

1910-48: 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 good. No diversion above station. Release from five small reservoirs 

[total capacity 2,990 acre-feet) has increased normal summer flow since 1931.

Rating table, water year 1947-48 (sane height, in feet,

and discharge, in second-feetj 

(Backwater corrections applied Sept. 6-29)

0.7 0.3 1.5 24 2.4 194 

.8 .7 1.7 39 2.7 343 

.9 1.5 1.8 48 3.4 610 

1.0 2.8 1.9 60 4.0 850 

1.1 5.3 2.0 76 5.0 1,320 

1.2 9.1 2.1 96 6.0 1,880 

1.4 18 2.2 124 6.8 2,360

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

.8 

.8 

.8 

.8

.8 

1.0 

87 

20 

63F

316 

96 

60 

55 

49

975 

791 

282 

158 

116

176 

134 

96 

78 

65

58 

55 

56 

472 

425 

276

Nov.

351 

425 

282 

207 

190

138 

118 

104 

92 

71

63 

52 

47 

44 

58

96 

80 

78 

62 

49

47 

40 

37 

41 

42

52

54 

59 

80 

102

Dec.

84 

62 

55 

54 

47

43

38 

38 

35 

34

34 

32 

31 

29 

28

27 

33 

50 

65 

52

43 

39 

39 

39 

44

47 

44 

41 

40 

29 

32

Jan.

32 lie

165 

249 

207

155 

456 

1,080 

429 

238

148 

118 

94 

80 

76

66 

62 

60 

50 

49

49 

50 

62 

60 

59

43 

44 

43 

40 

38 

34

Feb.

34 

31 

30 

34 

33

39 

50 

62 

60 

62

59 

58 

63 

74

74

96 

131 

121 

102 

96

118 

190 

131 

94 

92

104 

102 

96 

102

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

ffa

mber. ...................................

lendar year 1947 

ary

h. ....................................

1.. ....................................

ember. .................................

ter year 1947-48 ......................

Mar.

96 

94 

71 

63

71

74 

65 

78 

88 

78

73 

73 

86 

104 

116

116 

104 

104 

107 

99

110 

180 

198 

172 

138

190 

234 

234 

194 

183 

216

Apr.

1

Secondfoot-day s

5,536.8 

3,161 

1,308

88,128.8

4,454 

2,338 

3,809 

14,739 

37,207 

40,140 

5,185 

185.1 

150.0

118,212.9

338 

356 

288 

220 

194

180 

187 

187 

293 

288

216 

216 

225 

303 

429

'510 

000 

948 

842 

870

912 

818 

547 

529 

706

710 

758 

722 

518 

429

May

405 

445 

525 

714 

1,010

1,460 

1,390 

935 

730 

682

842 

1,090 

1,460 

1,670 

1,850

2,100 

1,990 

1,560 

930 

642

533

638 

1,040 

1,580 

1,960

2,310 

2,050 

1,400 

1,200 

1,200 

866

June

1,010 

1,390 

1,620 

1,690 

1,160

1,610 

1,650 

1,780 

2,040 

1,850

1,630 

1,600 

1,510 

1,590 

1,400

1,320 

1,240 

1,230 

1,170 

1,140

1,020 

1,140 

1,050 

1,100 

1,180

1,160 

1,060 

1,080 

886 

834

Maximum Minimum

975 0.8 

425 37 

84 27

1,960 0.8

1,080 32 

190 30 

234 63 

1,000 180 

2,310 405 

2,040 834 

786 18 

16 1.9 

14 .6

2,310 0.6

July

786 

642 

469 

389 

298

229

207 

212 

203 

198

194 

169 

148 

124

113

104 

94 

86 

73 

63

56 

50 

45 

42 

38

04 

30 

27 

23 

21 

18

Aug.

16 

15

14 

12 

11

10 

9.1 

8.3 

7.9 

7.1

6.7 

6.4 

5.7 

5.3 

4.6

4.3 

4.0 

3,3 

3.6 

3.4

3.0 

3.0 

2.8 

2.7 

2.5

2.2 

2.3 

2.2 

2.2 

2.1 

1.9

Sept.

1.8 

1.7 

1.6 

1.6 

1.5

1.4 

1.2 

1.0 

.8 

.7

.6 

.7 

.7 

.6 

.6

1.8 

3.8 

5.7 

6.7 

6.7

7.1 

7.5 

7.9 

8.3

11

14 

14 

13 

13 

e!3

 ... Runoff in Mean acre-feet

179 10,980 

105 6,270 

42.2 2,590

241 174,800

144 8,830 

80.6 4,640 

123 7,560 

491 29,230 

1,200 73,800 

1,338 79,620 

167 10,230 

5.97 367 

5.00 298

323 234,500

Peak discharge (base, ,2,400 sec. -ft.).- May 16 (8:30 p.m.) 2,870 sec. -ft.; May 26 (9 p.m.) 3,200

sec. -ft.; June 8

e Stage-discha

889419 O - 50 - 18

,650 sec. -ft. 

elation indefinite; discharge computed by interpolation.
262 TUOLUMNE RIVER BASIN

Lake Eleanor near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°58', long. 119°53' , in NW^- sec. 3, T. IN., R. 

19 K., at dam on Eleanor Creek, 1.7 miles upstream from Miguel Creek and 5.5 ailes 

northwest of Hetch Hetchy. Datum of gage is at mean sea level (levels by city of 

San Francisco).

Drainage area.- 79 square miles.

Records available.- October 1919 to September 1948 (1919-30, gage heights only).

Extremes.- Maximum contents during year, 26,900 acre-feet June 20 (elevation, 4,660.8 

feet); minimum, 820 acre-feet Oct. 8, 9 (elevation, 4,626.6 feet).

1919-48: Maximum contents, 29,400 acre-feet Mar. 25, 1928 (elevation, 4,661.7 

feet); no usable contents at times in 1921, 1929, 1930.

Remarks.- Reservoir is formed by multiple-arch dam completed in 1918; storage began 

June 23, 1918. Capacity, 26,100 acre-feet between elevations 4 620.9 feet (natural 

outlet of old lake) and 4,6.60.0 feet (top of 5-foot flashboards) above mean sea 

level. Water is released down Eleanor Creek for power development and domestic 

supply as part of Hetch Hetchy system of city of San Francisco. Records show available 

contents at 12 p.m.

Contents, In-acre-feet, water year October 1947 to September 1948

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.

1,040

1,000

1,000

950

910

910

860

820

820

1,000

1,290

1,380

1,430

1,430

1,480

2,010

3,300

3,690

3,920

3,970

4,030

4,080

4,080

4,080

3,970

3,800

3,530

3,580

4,080

4,760

5,100

Nor.

5,480

6,020

6,370

S,S40

5,920

7,060

7,130

7,260

7,330

7,330

7,470

7,470

7,470

7,540

7,510

7,580

7,740

7,810

7,880

7,880

7,880

7,950

7,950

8,020

8,020

8,090

8,090

8,160

8,150

8,160

-

Dec.

8,290

8,290

8,290

8,350

8,360

8,430

8,430

8,430

8,500

8,570

8,570

8,570

8,640

8,640

8,570

8,500

8,430

8,290

8,230

8,160

8,020

7,950

7,810

7,680

7,470

7,260

6,990

6,780

6,580

6,370

6,160

Jan.

5,890

5,820

5,890

5,890

5,960

5,960

6,440

8,160

8,870

9,260

9,420

9,500

9,500

9,500

9,420

9,340

9,180

9,020

8,790

8,640

8,500

8,290

8,160

7,950

7,810

7,610

7,330

7,190

6,920

6,780

6,510

Feb.

6,300

6,090

5,820

5,540

5,410

5,270

4,930

4,700

4,590

4,480

4,310

4,140

3,9TO

3,800

3,690

3,580

3,580

3,630

3,690

3,750

3,800

4,030

4,250

4,370

4,370

4,370

4,370

4,370

4,370

_

-

Mar.

4,420

4,370

4,310

4,250

4,140

4,030

3,860

3,750

3,690

3,580

3,520

3,460

3,410

3,460

3,520

3,690

3,800

3,920

4,030

4,080

4,250

4,420

4,700

5,100

5,480

5,890

6,230

6,580

6,990

7,260

7,680

Apr.

8,160

8,710

9,260

9,580

10,100

10,400

10,800

11,000

11,600

12,100

12 , 500

12,900

13,200

13,700

14,500

15,400

16,900

18,400

19,800

21,000

22,400

23,600

24,100

24,200

24,400

24,400

24,600

24,500

24,300

24,200

May

24,100

24,200

24,300

24,500

24,800

25,100

24,800

24,500

24,300

24,300

24,500

24,700

24,800

25,000

25,100

25,200

25,000

24,800

24,600

24,400

24,300

24,400

24,700

24,800

25,000

25,100

24,900

24,700

24,600

24,600

24,500

June

24,400

24 , 500

24,600

24,800

24,600

24,700

24,800

24,800

24,800

25,000

25,200

25,600

26,000

26,200

26,200

26,100

26,200

26,500

26,700

26,900

26,800

26,500

26,100

26,000

25,900

26,000

26,100

26,100

26,100

26,100

July

26,100

26,100

26,000

26,000

26,000

25,100

26,100

26,100

26,200

26,300

26,300

26,300

26,300

26,400

26,400

26,300

26,300

26,300

26,200

26,100

26,100

26,000

25,900

25,800

25,600

25,500

25,300

25,100

24,900

24,800

24,600

Aug.

24,400

24,200

24,000

23,700

23,500

23,400

23,200

22,800

22,500

22,300

22,100

21,900

21,700

21,400

21,200

21,000

20,800

20,500

20,300

20,100

19,900

19,600

19,300

19,100

18 , 900

18,700

18,400

18,200

18,000

17,800

17,500

Sept.

17,300

17,100

16,800

16,600

16,400

16,100

15,900

15,700

15,400

15,200

15,000

14,700

14,500

14,300

14,300

14,200

14,200

14,200

14,200

14,200

14,200

14,200

14,100

14,100

14,100

14,100

14,100

14,100

14,100

14,100

- '

Monthly elevation and cont

Date

Calendar year 1947.....

Sept. 30. .................

Water year 1947-48.....

ents , water y

Elevation 

(feet)

-

,646.6

-

;ar October 194

Contents 

(acre -feet)

-

14,100

-

7 to September 1948.

Change In contents 

during month 

(acre-feet)

-2,000

-12,100

-3,400

+13,000
TUOLUMNE RIVER BASIN 263

Eleanor Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°58', long. 119°53' ; In SW-Jsec. y, T. IN., R. 19 E., In Yosemlte National Park, 0.6 mile downstream from Lake 

Eleanor Dam, 1.1 miles upstream from Mlguel Creek, and 5.5 miles northwest of Hetch 

Hetchy. Altitude of gage, about 4,600 feet (from topographic map).

Drainage area.- 80 square miles.

Records available.- November 1915 to September 1948. June to October 901 and November 

19U9 to November 1915 at site 1 mile upstream.

Average discharge.- 38 years (1910-48), 219 second-feet.

Extremes.- Maximum discharge during year, 1,270 second-feet May 17 (gage height, 5.67 

reet); minimum, 1.9 second-feet Nov. 19.

1909-48: 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 at times during 1910, 1930, 1931, 1933.

Remarks.- Records good. No diversion. Flow regulated by Lake Eleanor beginning In 

19lb (see preceding page).

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

Oct. I to Jan. 13 Jan. 14 to Sept. 3O

1.5 5.4 ,2.5 71 4.1 45O 1.5 7.6 1.9 23.5 2.6 84

1.6 8.6 2.7 94 4.5 635

1.7 12.4 2.9 124 4.9 835

1.8 16.7 3.2 176 5.2 1,OOO

2.0 27.5 3.5 242 5.6 1,230

1.6 10.7 2.0 29.5 2.8 HO

1.7 14.2 2.2 44.0 3.0 141

1.8 18.4 2.4 63

Note.- Same as preceding table above

2.2 42.5 3.8 333 3.0 feet.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

15

15

15

15

15

15

15

15

15

10

7.6

7.6

7.6

7.6

7.6

8.3

8.3

8.3

17

56

71

71

54

67

86

110

118

. 33

8.0

8.0

8.0

Nov.

8.6

8.6

8.6

8.6

8.3

8.0

.6

.3

.3

.3

.3

.3

.3

.3

.3v

.3

.0

.0

.O

.6

.3

.3

.3

.3

.3

.3

.6

.6

.6

.6

-

Dec.

7.6

7.6

7.6

8.0

7.6

7.6

7.6

7.6

7.6

7.3

7.3

7.3

7.3

6.0

38

7O

80

79

79

78

78

76

106

126

129

129

129

129

129

131

138

Jan.

148

151

144

127

127

127

105

57

38

26

41

71

79

90

113

125

127

127

127

127

125

131

135

133

135

135

135

131

131

133

131

Feb.

131

131

141

146

146

146

148

148

133

114

118

124

130

124

114

107

86

64

61

62

60

38

23

39

75

81

81

73

74

_

-

Month

October. ...................................

November. ..................................

December. ........... .......................

Calendar year 1947 ......................

January. ...................................

February

March. .....................................

April ......................................

May. .......................................

June .......................................

July.. .....................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

88

91

97

106

118

125

127

122

109

103

99

94

94

82

67

48

42

57

61

58

59

44

15

11

9.6

9.3

9.3

9.6

10

10

10

Apr.

11

3

]

]

1

2

1

11

12

]

3

]

1

0

3

13

11

3

3

]

]

]

0

0

9.9

9.9

9,9

0

1

1

11

12

=

2e

37

8

5

8

459

554

54

ee

57

44

Secondfoot-days

914.9

226.8

1,828.0

53,126.7

3,532

2,918

1,984.8

4,150.7

23,288

15,442

2,795

3,623

1,769.8

62,473.0

4

0

6

6

May

352

333

382

495

670

934

1,100

790

595

495

536

645

795 "972

1,010

1,150

1,190

1,070

790

585

468

442

549

755

906

1,070

1,150

884

755

710

710

Maximum

lie

8.6

138

710

151

148

127

650

1,190

785

282

124

120

1,190

June

625

665

655

780

725

715

770

765 ,

785

645

540

460

359

490

540

518

415

282

264

276

450

585

531

490

468

348

310

323

333

330

-

Minimum

7,6

7.0

6.0

6.0

26

23

9.3

9.9

333

264

51

106

7.6

6.0

July

282

230

220

155

76

71

60

55

57

60

60

59

59

57

57

56

55

51

55

6i

69

68

67

82

89

89.

94

94

99

103

102

Aug.

106

107

106

107

107

106

119

124

122

122

122

122

120

120

120

119

118

118

118

118

118

119

118

118

118

118

118

118

118

119

120

Mean

29.5

7.56

59. 0

146

114

101

64.0

138

751

515

90.2

117

59.0

171

Sept.

120

120

120

120

119

119

119

119

119

119

119

119

119

88

8.7

8.

8.

8.

8.

8.

8.

8.

8.4

7.8

7.6

7.6

7.6

7.8

7.8

7.8

-

Runoff in 

acre-feet

1,810

450

3,630

105,400

7,010

5,790

3,940

8,230

46,190

30,630

5,540

7,190

3,510

123,900
TUOLUMNE RIVER BASIN

South Fork Tuolumne River near Oakland Recreation Camp, Calif.

Location.- Water-stage recorder, lat. 37°49', long. 120°00', in SEv sec. 29, T. IS., R. 

18 E., at Cliff House, 75 feet downstream from highway bridge on Big Oak Flat road, 0.5 

mile southwest of Oakland Recreation Camp, and 0.6 mile upstream from Middle Tuolumne 

River. Altitude of gage, about 2,800 feet (from topographic map).

Drainage area.- 87.6 square miles.

Records available.- March 1923 to September 1948,.

Aver age dls charge.- 25 years, 91.2 second-feet.

Extremes.- Maximum discharge .during year, 570 second-feet Apr. 9 {gage height, 4.39 feet); 

minimum, 5.8 second-feet Dec. 30.

1923-48: 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 storage or diversion.

Hating ta61e, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

0.9 6.2 1.4 16 1.9 36 3.1 173

1.0 7.5 1.5 19 2.0 42 3.4 223

1.1 9.0 1.6 23 2.2 60 3.7 300

1.2 11 1.7 27 2.5 91 3.9 365

1.3 13 1.8 31 2.8 128 4.1 440

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

?.

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

2?.

23

24

25

26

27

28

29

30

31

Oct.

6.7

7 .0

7.1

6.8

6.5

6.4

7.0

12

11

30

24

17

12

11

11

13

24

19

15

13

14

15

13

13

12

12

12

12

18

24

19

Nov.

20

27

23

20

19

17

15

15

15

14

14

14

13

14

16

18

16

15

15

13

14

13

12

14

14

d!4

d!4

d!4

15

16

-

Dec.

16

16

14

14

14

13

14

14

12

14

14

14

14

14

13

14

16

16

15

16

17

15

14

14

14

14

14

14

15

9.6

a!2

Jan.

a 14

22

27

21

21

18

21

41

38

28

23

19

19

18

16

17

16

16

15

15

15

16

16

15

15

*14

11

613

613

614

1)14

Feb.

613

612

611

613

B13

614

613

616

618

25

618

617

618

617

18

19

22

24

24

22

23

29

*31

24

23

23

23

25

22

_

-

Month

December ...................................

Calendar year 1947 ......................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

24

23

21

20

22

22

21

23

23

23

22

23

30

37

31

34

34

29

38

32

30

35

40

178

84

66

68

69

77

80

75

Apr.

87

103

195

125

135

131

96

87

188

414

217

145

123

115

136

157

195

189

181

183

191

268

202

171

171

176

170

197

179

170

-

Secondfoot-days

439.6

17,330

1 334

905

250.6

22,764.1

May

160

157

157

181

223

279

291

219

189

175

189

214

248

276

303

334

327

300

223

191

170

167

219

273

300

334

312

243

219

248

219

Maximum

17

286

10

414

June

210

236

227

250

218

227

252

276

260

236

216

202

186

186

170

165

151

144

132

125

115

114

104

97

91

84

77

72

65

60

-

Minimum

12

9.6

6.2

11

7.3

6.4

July

53

48

45

42

41

40

38

36

35

34

32

31

30

29

28

27

25

25

24

23

23

22

21

21

20

20

19

19

18

18

18

Aug.

17

17

16

16

15

15

14

14

14

14

14

14

14

13

13

13

12

12

12

12

12

12

12

12

12

11

11

10

10

9.8

9.6

Mean

15.8

14.2

47.5

8.35

62.2

Sept.

9.2

9.0

8.8

8.6

8.6

8.4

8.4

8.1

8.0

7.7

.6

.5

.5

.4

.3

.3

.4

.5

.8

8.0

8.0

8.1

8.6

9.0

9.6

10

10

9.6

9.0

8.6

-

Runoff in 

acre-feet

938

872

34,370

497

45,160

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on 6asis

6 Stage-discharge relation affected 6y ice.

d Doubtful gage-height record; discharge computed on

cords for Middle Tuolumne River.

of records for Middle Tuolumne River.
TUOLUMNE R-IVER BASIN 265

Middle Tuolumne River at Oakland Recreation Camp, Calif.

Location.- Water-stage recorder, lat. 37°50', long. 120°00', in NWy sec. 28, T. IS., R.

l« £~, at Oakland Recreation Camp, 0.5 mile upstream from South Fork Tuolumne River and

4 miles east of Buck Meadows post office. Altitude of gage, about 2,800 feet (from

topographic map).

Drainage area.- 71.0 square miles. 

Kecords available.- November 1916 to September 1948. 

Average discharge?- 31 years (1917-48), 71.9 second-feet. 

Extremes_.- Maximum discharge during year, 623 second-feet May 26 (ga'ge height, 5.26 feet);

minimum, 0.9 second-foot Oct. 1.

1917-48: Maximum discharge, 2,910 second-feet Dec. 11, 1937 (gage height, 10.4

feet, from floodmarks), from rating curve extended above 1,000 second-feet on basis of

velocity-area studies; no flow Sept. 4-14, 1924, Aug. 12 to Oct. 5, 1931, Sept. 11-17,

1934. 

Remarks.- Records good. Small diversion above station for irrigation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

.9

1.0

1.1

0.6 

1.3 

2.2 

3.2 

4.4 

5.8

1.2

1.3

1.4

1.5

1.6

7.3

9.0

11

14

17

25

3.6 

4.0 

4.3 

4.6

230

315

382

454

Discharge, in second-feet, water year October 1947 to September 1948

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.

0.9

1.0

1.1

1.1

1.1

1.3

1.4

2.3

2.6

8.1

14

9.2

6.2

4.5

3.6

3.9

6.4

12

7.3

5.3

5.0

6.0

4.9

4.8

4.4

4.0

3.7

3.7

4.6

6.8

8.5

Nov.

8.6

11

9.8

8.1

8.0

6.8

5.2

5.8

5.4

4.6

4.4

5.0

3.8

4.6

5.8

6.5

5.9

5.2

5.0

4.2

3.8

4.3

3.7

4.2

4.9

4.6

4.8

4.9

5.3

5.9

-

Dec.

6.5

6.6

5.9

5.2

4.9

4.3

4.4

4.5

3.5

4.2

4.5

3.8

4.2

4.5

4.3

4.6

6.0

5.3

5.3

5.6

5.8

4.9

5.3

5.1

5.3

5.3

5.2

5.6

5.4

3.0

4.4

Jan.

6.6

8.2

13

13

11

10

10

28

35

22

16

14

12

11

9.6

9.6

9.0

8.6

7.5

7.3

7.6

8.6

8.6

7.9

7.8

6.8

3.9

6.0

5.8

6.0

6.2

Feb.

6.5

5.9

4.6

5.5

7.0

7.3

6.4

6.8

8.1

12

8.3

8.1

8.0

8.1

8.1

9.0

10

11

11

10

10

13

13

11

11

11

11

11

9.4

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1947 ......................

January .................................. .

February ...................................

March. .....................................

April ......................................

May........................................

June .......................................

July .......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

11

11

10

8.9

10

10

9.8

11

11

10

9.8

10

13

16

14

17

16

14

20

16

14

17

20

108

41

29

29

30

33

34

32

Apr.

34

38

77

58

68.

66

44

40

90

191

88

59

50

46

47

51

62

85

93

91

97

a!20

alOO

91

98

104

98

17

112

112

-

Secondfoot-days

149.7

170.1

153.4

14,326.2

336.6

262.1

635.5

2,427

7,508

7,226

861.6

139.6

46.1

19,915.7

May

99

98

94

112

147

199

232

184

151

138

151

187

246

275

306

359

377

366

242

201

174

171

242

337

370

440

435

337

300

286

252

Maximum

14

11

6.6

307

35

13

108

191

44O

420

66

8.8

3.1

440

June

258

315

306

355

302

308

380

420

413

370

341

326

393

289

260

246

228

216

194

187

174

167

147

134

125

116

103

94

85

74

-

Minimum

0.9

3.7

3.0

.8

3.9

4.6

8.9

34

94

74

9 . 6

2.0

1.1

.9

July

66

59

53

49

47

44

41

40

38

36

32

31

29

27

25

22

22

20

19

18

17

16

15

14

14

13

12

12i;

10

9.6

Aug.

8.8

8.3

7.8

7.3

6.8

6.4

6.2

5.9

5.6

5.4

5.2

5.Z

4.8

4.5

4.3

4.2

3.9

3.6

3.7

2.6

3.1

2.8

2.8

2.9

2.8

2.8

2.6

2.5

2.3

2.5

2 .0

Mean

4.83

5.67 

4.95

39.2

10.9

9.04

20.5

80.9

242

241

27 .8

4 50

] ci *

54.4

Sept.

.8

.9

.6

.6

.6

.6

.1

.9

.6

.5

.5

.4

.3

.3

.2

.1

.1

.1

.1

.1

.2

.3

.3

.3

.5

.7

.8

.9

.9

.8

Runoff in 

acre-feet

297

337 

304

28,400

668

520

1,260

4,810

14,890

14,330

1,710

277

91

39,490

Peak discharge (base, 57O see.-ft.).- May 18 (2 a.m.) 466 sec.-ft.; May 26 (11:30 p.n 

ft.; June 9 (12:30 a.m.) 589 sec.-ft.

a No gage-height record; discharge computed from range in stage and partial graph.
266 TUOLUMNE RIVER BASIN

Woods Creek near Jacksonville, Calif.

Location.- Water-stage recorder, lat. 37°51', long. 120°24', in SW£ sec. 12, T. IS., R.

14 E. , 1.5 miles upstream from mouth and 1.5 miles northwest of Jacksonville. Prior

to Oct. 1, 1947 at datum 2.00 feet higher. Altitude of gage, about 645 feet (from

topographic map).

Drainage area.- 98.4 square miles. 

Keeords available.- October 1925 to September 1948. 

Average discharge . - 23 years, 60.4 second-feet. 

Extremes . - Maximum discharge during year, 2,150 second-feet Mar. 24 (gage height, 8.59

reet); no flow July 24 to Sept. 30.

1925-48: Maximum discharge, 13,500 second-feet Feb. 9, 1938, from rating curve

extended above 1,000 second-feet on basis of velocity-area studies; maximum gage height,

11.5 feet Feb. 3, 1945; no flow at times during summers of 1929-36, 1939, 1940, 1947,

1948. 

Remarks . - Records good except those for periods of no gage-height record and those above

2UU second-feet, which are fair. At times small amounts of water from Stanislaus River

Basin are spilled into Woods Creek above station.

Rating tables, water yeai 

and dlscharg

Oct. 1 to Mar. 24

r 1947-48 (gage height, In feet, 

e, In second-feet)

Mar. 24 to Sept. 30

1.6 

3.0 

5.0 

7.6

2.0 

2.2 

2.4 

2.7 

3.0 

3.5

76

128

5.5 

6.0 

6.5

282

410

562

745

960

2.5 

2.8 

3.2

3.6 162

4.0 222

4.5 312

5.0 430

5.5 590

6.0 775

Note.- Same as'preceding table

Discharge, in second-feet, water year October 1947 'to September 1948

Day

1

?

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

??

23

24

25

?fi

27

za

29

30

31

Oct.

0.5

.6

.5

.4

.2

.2

.6

1.6

4.2

4.2

7.2

3.8

2.4

2.0

2.6

2.3

6.5

5.0

3.8

3.6

3.6

3.8

4.0

4.0

4.0

3.8

3.6

3.6

5.7

8.2

7.3

Nov.

8.4

18

11

9.0

7.9

7.0

6.8

6.8

6.3

6.0

5.4

5.7

6.0

6.3

7.6

11

9.6

7.6

7.3

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

-

Dec.

7.0

7.3

a7.5

a7.5

a7.5

a7.5

a7.5

a7.5

a7.5

a7.5

7.6

7.6

7.6

7.6

7.3

7.3

13

18

13

10

9.9

9.6

9.0

9.3

9.0

8.6

8.2

8.2

8.2

7.9

7.6

Jan.

7.3

7.9

20

13

11

9.9

9.6

12

12

11

9.9

9.3

8.6

8.6

8.2

8.2

8.2

8.2

.9

.6

.6

.6

.6

.6

.3

.0

.0

.8

.8

.5

.5

Feb.

6.5

6.5

6.3

6.5

16

40

34

20

17

107

55

30

24

22

21

23

24

22

21

18

16

15

18

16

14

12

11

15

22

-

-

Month

December. ...................................

Calendar year 1947 ......................

Mnv

September. .................................

Water year 1947-48 ......................

Mar.

24

17

13

11

9.3

8.6

7.9

7.9

11

9.9

9.3

9.0

19

146

104

114

335

124

230

109

70

55

49

858

440

256

166

112

84

67

53

Apr.

47

49

319

224

648

585

225

132

127

711

253

156

109

89

71

61

56

51

46

39

34

66

48

37

31

28

27

32

86

264

-

Secondfoot-days

268.8

7,792.6

3 528 9

41 3

0

11,799.7

May

125

90

74

64

60

57

53

53

50

46

44

40

39

38

37

34

42

27

62

35

26

30

39

39

38

37

35

35

34

40

48

Maximum

18

937

0

858

June

38

36

35

36

34

31

30

33

28

27

25

24

21

21

22

9.9

7.6

14

15

14

14

14

8.6

5.0

3.8

5.0

4.2

3.6

3.8

5.2

-

Minimum

7.0

0

0

0

July

3.0

1.8

1.8

4.2

5.7

5.2

3.2

2.8

2.4

2.0

1.8

1.8

1.6

1.2

1.0

a. 6

a. 4

a. 2

a. 2

a.l

a.l

a.l

a.l

aO

aO

aO

aO

aO

0

0

0

Aug.

Mean

8.67

21.3

47 5

O

32.2

Sept.

Runoff in 

acre-feet

533

15,470

549

0

23,420

Peak discharge (base, 700 sec.-ft.).- Mar. 24 (5 p.m.) 2,150 sec.-ft.; Apr. 4 (ll p.m.) 923 seo.- 

ft.; Apr. 10 (12:30 p.m.) 1,040 sec.-ft.

a No gage-height record; discharge Interpolated Dec. 3-10, computed from a recession curve July 16- 

28.
TUOLUMNE RIVER BASIN 267

Modesto Canal near La Grange, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°40'04", long. 120°27'26", in 

sw£ sec. 17, T. 3S..R. 14 E., 0.5 mile northeast of La Grange and 1 mile downstream 

from intake at La Grange Dam. Datum of gage is 272.4 feet above mean sea level (levels 

by Modesto Irrigation District).

Records available.- April 1903 to September 1948. 

Average discharge.- 45 years, 370 second-feet.

Extremes.- Maximum daily discharge during year, 1,340 second-feet May 4-9; no flow Oct. 2 

to Dec. 1.

1903-48: Maximum daily discharge, 1,820 second-feet July 1, 1935; no flow at times.

Remarks.- Records excellertt. Canal diverts from right bank of Tuolumne River at La Grange 

l)am for irrigation in Modesto and Waterford Irrigation Districts.

Cooperation.- Gage-height record furnished by Modesto Irrigation District.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov. Dec.

0

309

454

476

580

527

273

579

661

680

701

671

438

300

497

554

628

9.9

al.5

1.5

1.1

1.3

1.9

1.9

1.3

1.0

1.1

1.1

1.1

1.1

1.3

Jan.

0.6

1.0

.4

.6

.8

.8

.8

.6

.4

.4

.2

.4<

.4

.4

.4

.4

.3

.4

.4

.4

.4

.4

.3

.2

.2

.2

.2

.2

.3

.2

.2

Feb.

0.2

0

:2

.3

.4

.2

.2

.1

.1

.4

.3

.1

0

.1

.1

.z

.2

.2

.3

.6

1.9

1.5

1.3

1.9

1.5

1.5

3.5

2.7

2.4

-

Month

October ....................................

November ...................................

December ...................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

May........................................

June ................................'.......

July.... ...................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

3.8

167

267

256

262

197

89

2O6

283

242

234

221

217

129

191

161

58

63

71

41

15

64

93

104

93

68

52

218

97

89

72

Apr.

78

88

73

52

66

57

55

85

163

190

205

147

188

200

199

210

187

138

234

388

386

483

656

660

656

669

740

1,170

1,230

1,300

Secondfoot-days

5.2

0

8,355.1

146,129.8

12.9

22.4

4,323.8

10,953

38,450

35,880

25,970

26,930

16,124

167,026.4

May

1,280

1,300

1,320

1,340

1,340

1,340

1,340

1,340

1,340

1,320

1,220

1,170

1,190

1,240

1,240

1,240

1,240

1,240

1,230

1,230

1,160

1,160

1,150

1,160

1,160

1,160

1,180

1,200

1,210

1,210

1,200

Maximum

5.2

0

701

1,260

1.0

3.5

283

1,300

1,340

1,260

1,320

1,080

659

1,340

June

1,190

1,200

1,210

1,210

1,250

1,260

1,260

1,180

1,170

1,160

1,200

1,200

1,200

1,200

1,200

1,200

1,210

1,180

1,200

1,180

1,180

1,180

1,180

1,170

1,180

1,180

1,160

1,170

1,180

1,240

Minimum

0

0

0

0

.2

0

3.8

52

1,150

1,160

726

731

467

0

July

1,280

1,320

1,320

1,300

1,300

930

745

750

748

740

738

738

738

738

726

748

745

743

740

740

738

738

743

740

738

738

740

740

743

745

740

Aug.

736

738

738

738

738

736

731

731

996

1,080

1,080

1,030

1,020

1,020

976

934

903

872

859

862

864

859.

851

854

856

856

854

849

854

856

859

Mean

0.17

0

270

400

.42

.77

139

365

1,240

1,196

838

869

537

456

Sept.

659

598

598

598

598

590

598

602

551

524

520

520

522

474

467

472

475

472

472

526

553

556

536

517

524

526

520

518

518

520

-

Runoff in 

acre feet

10

0

16,570

289,800

26

44

8,580

21,720

76,260

71,170

51,510

53,410

31,980

331,300

a No gage-height record; 

District.

discharge computed on basis of information furnished by Modesto Irrigation
268 TUOLUMNE RIVER BASIN

Turlock Canal near La Grange, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°40'00", long. 120°26'25", 

near north line of NWy sec. 21, T. 3 S., R. 14 E., 2,400 feet downstream from intake at 

La Grange Dam and 1.2 miles east of La Grange. Altitude of gage, about 265 feet (from 

topographic map).

Records available.- October 1898 to September 1948. 

Average discharge.- 50 years, 520 second-feet-.

Extremes.- Maximum daily discharge during year, 2,040 second-feet May 17; no flow Oct. 21 

to Nov. 20.

1898-1948: Maximum daily discharge, 2,150 second-feet July 2-4, 1942; no diversion 

for irrigation during some periods in each year. Prior to 1939, unmeasured small discharge during winter called zero.

Remarks.- Records excellent. Canal diverts from left bank of Tuolumne River at La Grange 

jJam ror irrigation in Turlock Irrigation District and to supply town of La Srange. 

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 1947 to September 1948

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.

83

111

95

23

2.8

41

115

5.7

27

3.9

2.2

2.8

5.2

2.1

3.5

5.4

2.5

2.3

4.3

1.8

O

0

0

0

O

0

0

0

0

O

0

Nov.

0

0

O

0

0

0

0

0

O

0

0

0

0

0

O

O

0

0

0

O

207

314

134

470

463

471

167

353

319

115

-

Dec.

546

186

6.7

5.4

54

15

3.6

26

19

18

25

5.3

9.6

2.4

1.7

2.4

21

561

603

588

211

518

483

466

58

438

431

109

533

451

518

Jan.

4.7

153

4.8

6.2

123

115

74

6.4

11

4.2

3.8

50

96

30

13

19

3.8

4.8

8.6

6.7

4.4

5.8

5.9

3.6

6.2

5.8

11

12

10

5.4

3.6

Feb.

310

419

431

484

450

408

317

173

382

379

408

338

326

270

155

297

349

377

372

327

227

164

230

358

353

349

335

205

135

_

-

Month

December. ..................................

Calendar year 1947 ......................

May........................................

September ..................................

Water year 1947-48 ......................

Mar.

372

62

.3

.£

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2

135

202

133

115

73

48

96

147

152

130

102

86

161

141

128

114

Apr.

128

172

130

93

147

139

114

164

78

9.8

9.8

9.8

10

10

9.2

18

18

12

38

54

879

853

814

842

718

956

1,200

1,580

1,720

1,650

-

Secondfoot-days

539 5

 6,915.1

262,526.6

2 399 9

32,224

253,455.8

 May

1,270

842

1,070

1,06O

1,100

1,090

1,050

1,060

926

1,270

1,460

1,550

1,650

1,730

1,960

1,990

2,040

2,030

1,960

1,910

1,860

1,800

1,710

1,430

1,130

1,30O

1,320

1,270

1,430

1,200

920

Maximum

603

1,960

372

1,520

2,O4O

June

914

937

940

934

982

965

979

1,120

1,350

1,620

1,770

1,810

1,700

1,630

1,640

1,580

1,520

1,560

1,690

1,770

1,690

1,720

1,810

1,860

1,870

1,880

1,880

1,890

1,870

1,860

-

Minimum

1.7

O

74

0

July

1,840

1,850

1,840

1,750

1,870

1,600

1,430

1,440

1,440

1,450

1,450

1,450

1,460

1,460

1,480

1,460

1,470

1,470

1,460

1,460

1,460

1,470

1,480

1,500

1,500

1,500

1,510

1,510

1,530

1,520

1,540

Aug.

,540

,550

,560

,600

,61O

,510

,510

1,520

1,390

1,340

1,360

1,430

1,450

1,470

1,520

1,600

1,650

1,560

1,550

1,560

1,580

1,590

1,570

1,590

1,600

1,610

1,610

1,600

1,610

1,610

1,620

Mean

223

719

1 432

1 525

1,074

.693

Sept.

1,490

1,470

1,520

1,410

1,000

1,130

1,330

1,360

1,450

1,520

1,170

803

1,320

1,350

1,370

1,360

1,230

1,220

838

1,340

1,430

1,390

730

419

319

74

521

512

536

522

-

Runoff in 

acre-feet

13,720

520,700

63,920

502,700
STANISLAUS RIVER BASIN 269

Middle Fork Stanislaus River at Kennedy Meadows, Calif.

Location.- Water-stage recorder, lat. 38°18', long. 119M5', in NE^ sec. 11, T. 5 N., R. 20 

E., at upper end of Kennedy Meadows, 1 mile upstream from Deadman Creek and 2 miles 

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 October 1945, May 1946 to September 1948.

Extremes.- Maximum discharge during year, 796 second-feet May 27 (gage height, 5.41 feet); 

minimum, 5.0 second-feet Feb. 11.

1938-48: Maximum discharge recorded 1,160 second-feet June 1, 1943 (gage height, 

6.17 feet); minimum, that of Feb. 11, 1948.

Remarks.- Records good. Flow regulated since beginning of record by Relief Reservoir (usable capacity, 15,550 acre-feet). No diversion.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.0 

1.2 

1.4 

1.6 

1.8 

2.0

7.0

12

18

26

34

43

2.5

2.6 

2.9 

3.2 

3.5 

3.8

83

114

154

202

260

4.1 

4.4 

4.7 

5.0 

5.3

332

416

516

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

45

45

44

44

44

45

46

48

47

55

50

48

48

48

48

65

81

66

60

59

60

58

56

54

53

52

52

52

55

54

53

Nov.

55

56

54

54

53

50

51

51

50

48

50

49

48

49

49

49

48

48

47

47

46

46

46

47

47

46

46

46

46

46

~

Dec.

46

46

46

46

45

44

44

43

43

44

44

43

42

42

42

42

43

42

42

42

41

40

41

40

40

40

40

40

40

38

40

Jan.

40

42

42

43

42

42

64

69

52

48

46

44

43

43

42

42

42

42

40

40

40

40

4O

40

40

36

37

39

38

38

29

Feb.

11

12

14

13

13

15

14

13

13

12

7.2

16

15

12

10

10

11

11

11

11

11

12

12

10

14

13

12

13

13

-

-

Month

December. ...................................

Calendar year la47 ...................

March. .....................................

Hay. .......................................

July.. .....................................

September . .................................

Water year 1947-48 ......................

Mar.

13

10

12

15

12

12

12

11

11

11

11

11

12

12

12

12

12

11

12

12

11

13

13

12

15

16

15

16

15

14

15

Apr.

19

22

20

18

18

17

17

16

16

18

17

16

17

23

36

49 '77

64

63

73

81

69

58

59

76

80

81

77

62

54

-

Seoondfoot-days

1,311

33,614

1 325

354 2

391

604

35,308.2

May

49

51

61

81

116

163

156

110

90

86

91

107

133

154

178

207

211

176

121

94

83

88

122

181

355

640

696

506

395

332

267

Maximum

81

46

500

60

696

June

267

392

506

527

364

372

492

560

676

672

598

586

548

590

527

516

489

462

445

472

384

342

354

432

489

538

556

552

462

509

-

Minimum

38

20

16

7.2

July

469

398

327

278

209

168

159

181

186

191

216

197

181

175

176

172

160

139

125

116

110

106

100

88

81

78

72

66

64

62

59

Aug.

56

54

51

49

48

45

44

42

40

40

38

37.

36

36

35

34

32

28

24

24

23

22

22

22

21

20

20

20

19

19

18

Mean

42.3

92.1

20.1

96.5

Sept.

18

18

18

18

17

17

17

17

16

17

17

re

16

16

16

16

16

16

16

16

16-

16

16

16

17

17

16

36

60

60

Runoff in 

acre-feet

2,600

66,670

1,200

70,030
270 STANISLAUS RIVER BASIN

Middle Fork Stanislaus River at Sand Bar Flat, near Avery, Calif.

Location.- Water-stage recorder, lat. 38°11', long. 120°09', in sec. 19, T. 4N., R. 17 E.,

I mile upstream from diversion dam of Pacific Gas & Electric Co. at Sand Bar Plat, and

II miles southeast of Avery. Altitude of gage, about 2,650 feet (from topographic map)

Drainage area.- 318 square miles.

Kecords available.- September 1905 to September 194S.

Average discharge?- 42 years (1905-8, 1909-48), 690 second-feet.

extremes.- Maximum discharge during year, 5,180 second-feet May 26 (gage height, 11.01 

feet); minimum, 53 second-feet Feb. 12.

1905-48: Maximum discharge recorded, 26,500 second-feet Dec. 11, 1937 (gage height, 

21.0 feet, from floodmarks), from rating curve extended above 6,000 second-feet on basis 

of logarithmic plotting; minimum discharge, 30 second-feet Aug. 24, 1924.

Remarks.- Records good. Flow partly regulated by Relief Reservoir beginning in 1909 (capacity, 15,550 acre-feet). Water diverted by Philadelphia Canal (see p. 277) from 

South Fork Stanislaus River through Spring Gap powerhouse into Middle Fork above station. Stanislaus Tunnel diverts 1 mile downstream.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Revisions (water years).- W 831: 1935, 1936.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

3.0 81 5.2 540 8.0 2,000 

3.3 116 5.6 680 8.5 2,400 

3.6 157 6.0 840 9.0 2,84O 

4.0 223 6.5 1,080 9.5 3,330 

4.4 308 7.0 1,340 10.1 3,990 

4.8 412 7.5 1,650

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

129 

128 

89 

90 

89

88 

98 

143 

144 

175

153 

119 

106 

108 

109

121 

348

200 

154

142

146 

142 

 132 

125 

120

119 

116 

132 

170 

183 

153

Nov.

153

162 

168 

160 

166

144 

143 

136 

132 

133

126 

133 

128 

129 

129

132 

133 

133 

130 

124

122 

111 

108 

126 

129

130 

121 

128 

124

132

Dec.

139 

136

132 

133 

13O

115 

115 

124 

112 

132

157 

150 

111 

111 

126

151 

156 

147 

135 

124

120 

125 

125 

125 

117

119 

115 

115 

124 

116 

106

Jan.

119 

139 

177 

193 

223

177 

211 

747 

406 

285

223 

218 

195 

185

178

174 

163 

160 

160 

162

185 

190 

180 

146 

149

174 

147

168 

175 

166 

124

Feb.

120 

132 

121 

136 

143

142 

135 

137 

147 

139

99 

99 

125

139 

143

151 

153

140 

143 

135

135 

162 

177 

146 

136

153 

174 

163 

154

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1947 ......................

ary

1. .....................................

ember . .................................

ter year 1947-48 ......................

liar.

153 

153

147 

139 

142

137 

114 

114 

116 

114

111 

112 

122 

132 

125

130 

129 

126 

132 

125

121 

146 

177 

227 

169

178 

219 

247 

233 

221 

227

Apr.

l 

l 

l 

l

1 

1 

1

l

l 

1 

l 

l

Secondfoot-days

4,271 

4,025 

3,943

155,629

6,299 

4,079 

4,738 

22,611 

65,560 

62,830 

17,450 

5,340 

3,613

204,759

Peak discharge (base, 1,900 sec. -ft.).- May 6 (12 p.m

290 

390

376 

318 

303

290 

267 

274 

302 

439

371 

34O 

353 

368 

537

673 

,070 

,260 

,160 

,260

,370 

,370 

,060 

980 

,160

,300 

,220 

,390 

,140 

980

May

862 

903 

995 

1,240 

1,710

2,500 

2,570 

1,660 

1,470 

1,380

1,570 

1,840 

2,230 

2,500 

2,760

3,270 

3,170 

2,600 

1,820 

1,520

1,320 

1,320 

1,890 

2,540

3,080

3,890 

3,780 

2,830 

2,340 

2,160 

1,840

Maximum

348

168 

157

2,300

747 

177 

247 

1,390 

3,890 

3,070 

1,490 

239 

154

3,890

) 3,610 see

June

1,840 

2,300 

2,650 

2,710 

2,090

2,180 

2,460 

2,620 

3,070 

2,970

2,650 

2,570 

2,340 

2,410 

2,200

2,060 

1,940 

1,860

1,730 

1,780

1,710 

1,560 

1,470 

1,590 

1,750

1,790 

1,740 

1,730 

1,530 

1,530

Minimum

88 

108 

106

88

119 

99 

111 

267 

862 

1,470 

247 

130 

115

88

July

1,490 

1,300 

1,120 

985 

816

728 

673 

676 

670 

659

684 

642 

592 

547 

530

509 

480 

436 

395 

368

348 

330 

313 

290

270

270 

290 

274 

263 

255 

247

Aug.

239 

229 

221 

214

210

205 

200 

195 

191 

188

185

180 

177 

174 

170

168 

166 

163

157 

153

150 

149 

149 

147 

146

142 

139 

136 

135 

132 

130

Mean

138 

134 

127

426

203 

141 

153 

754 

2,115 

2,094 

563 

172 

120

559

.-ft.; May 16 (9:30 p.

Sept.

129 

126 

125 

124 

124

122 

122 

120 

120 

119

117 

116 

117 

116 

115

115 

115 

116 

115 

116

117 

115 

116 

116 

117

120 

121 

122 

126

154

Runoff in 

acre-feet

8,470 

7,980 

7,820

308,700

12,490 

8,090 

9,400 

44,850 

130,000 

124,600 

34,610 

10,590 

7,170

406,100

ra.) 4,340

3,670 see.-ft-
STANISLAUS RIVER BASIN 271

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 1948.

Extremes.- Maximum contents observed during year, 112,600 acre-feet June 21 to July 3 

(elevation, 735.0 feet); minimum observed, 7,17t) acre-feet Oct. 7 (elevation, 630.3 

feet).

1927-48: Maximum contents observed, 115,200 acre-feet May 25, 26, June 1, 1943 

(elevation, 736.4 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; capacity for irrigation, 110,000 acrefeet between elevations 610.0 feet (floor of outlet tunnel) and 735.0 feet above mean 

sea level. Figures given herein represent total contents at 5 p.m., of which 2,630 acrefeet is not available for release. Released water flows down Stanislaus River to Goodwin 

Dam, where it is diverted into Oakdale and South San Joaquin Canals for irrigation.

Cooperation.- Record of contents, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Contents, in acre-feet, of year October 1947 to September 1948

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.

7,200

7,230

7,360

7,360

7,290

7,260

7,170

7,230

7,200

7,420

7,650

7,980

8,390

7,710

8,080

8,390

8,390

9,300

9,990

10,500

10,800

11,100

11,400

11,700

11,800

12,200

12,700

12,900

13,000

13,200

13,700

Nov.

14,000

14,700

15,300

15,700

16,000

16,400

16,800

16,900

17,300

17,700

17,900

18,100

18,100

18,000

18,100

18,500

18,800

19,100

19,300

19,300

19,200

19,200

a!9,500

19,900

19,500

19,600

19,600

19,900

19,800

20,100

-

Dec.

20,500

a20,700

20,900

21,000

20,600

20,300

20,500

21,000

19,800

18,500

17,700

17,300

17,000

17,400

17,700

16,900

15,800

15,600

15,100

14,000

14,500

14,800

14,100

14,100

14,400

14,800

14,900

14,900

15,300

14,400

13,400

Jem.

12,800

13,000

13,400

14,500

15,300

16,200

16,800

16,800

19,300

20,500

22,000

23,000

23,500

23,600

23,500

23,400

23,200

23,900

24,600

24,300

23,500

22,500

21,500

20,700

21,400

21,800

20,800

19,900

18,900

18,000

17,600

Feb.

18,300

18,600

17,700

16,500

15,600

15,700

16,000

16,800

17,200

16,600

17,200

17,000

17,200

17,000

17,700

18,100

18,300

18,700

18,900

19,400

19,800

20,500

21,100

22,000

21,800

21,400

20,800

20,200

21,000

-

-

Mar.

21,500

22,200

22,800

23,600

24,100

24,700

25,200

25,600

25,600

25,600

25,400

25,300

25,300

25,600

26,000

26,200

26,500

27,000

27,500

27,900

28,100

28,100

28,200

29,300

34,000

36,100

37,000

39,500

41,000

41,600

42,300

Apr.

42,900

43,600

46,300

49,600

52,800

55,600

58,100

59,600

60,100

63,800

68,700

71,900

74,500

77,000

79,200

82,100

85,600

91,200

93,800

94,500

97,000

100,700

105,600

102,600

100,600

100,100

99,900

100,100

100,700

100,100

-

Hay

99,400

98,400

97,800

97,300

98,000

101,800

105,600

106,000

103,600

102,600

101,600

101,400

102,300

104,200

104,900

106,900

108,900

109,300

107,500

106,000

101,800

100,600

99,900

103,000

105,300

108,200

110,800

109,700

107,100

104,900

104,600

June

3104,000

103 , 500

104,000

105,500

106,200

104,400

104,400

104,700

105,300

106,200

106,200

105,800

105,300

106,600

104,700

103,100

101,900

104,700

108,200

111,500

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

-

July

112,600

112,600

112,600

112,400

112,100

111,500

110,800

109,800

109,100

108,400

107,400

107,100

106,200

105,300

104,200

103,100

a!02,000

100,900

99,600

98,200

96,800

95,300

93,600

92,500

90,400

88,700

86,900

85,400

83,800

82,000

80,200

Aug.

78,600

77,100

75,500

74,100

72,500

70,900

69,400

68,000

66,200

64,600

63,100

61,600

60,000

58,500

56,900

55,100

53,800

52,200

50,600

48,500

47,300

45,700

44,000

42,400

40,700

39,000

37,400

35,700

34,200

32,600

31,100

Sept.

30,000

28,900

27,900

26,400

25,700

24,700

23,600

22,500

21,500

20,500

19,400

18,300

17,300

16,300

15,100

14,100

13,000

11,900

10,800

9,990

9,380

8,82O

8,350

7,780

7,610

7,610

7,580

7,710

7,710

7,880

-

a No gage-height record: contents interpolated on basis

Monthly elevation and contents, water year October 1947 to September 1948

Date

Calendar year 1947 ........

May 31

AUK 31

Sept.30 % ....................

Water year 1947-48

Elevation 

(feet)

-

632.5

-

Contents 

(acre-feet)

-

7,880

-

Change in contents 

during month 

(acre-feet)

-6,400

-49 100

1 -23,200

+810
STANISLAUS RIVER BASIN

Stanislaus River below Melones powerhouse, Calif.

Location.- Water-stage recorder. lat_. 37_°56'50" ,_long. 120°31'45". near'line between sees. 

10 an~3 15, T. 1 N., R. 13 E., 300 feet downstream from powerhouse, 0 J5 mile upstream 

from Bear Gulch, _and 1 mile downstream from Melones Dam. Altitude of gage, about 500 

feet (from topographic map).

Drainage area.- 898 square miles.

Records available.- January'1931 to September 1948.

Average discharge.- 17 years, 1,504 second-feet.

Extremes.- Maximum discharge during year, 8,850 second-feet_Mav 27 fgage height, 11.43 

feet); minimum, 1.1 second-feet Mar. 5.

1931-48: Maximum discharge, 22,800 second-feet'Mar. 31, 1940 (gage height, 17.6 

feet); minimum, 0.4 second-foot Jan. 19, 20, 1943.

Remarks.- Records excellent. Flow regulated by Melones powerhouse, Melones Reservoir

(see preceding page), and several smaller reservoirs above station. Several diversions 

above station.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric jCo., obtained in connection with a Federal Power Commission project.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

3.2 0.9 3.7 30 4.5

3.3 2.5 3.8 48 4.8

3.4 "5.1 3.9 71 5.1

3.5 9.9 4.1 129 5.5

3.6 17 4.3 201 6.0

287 7.0 2,450

449 8.0 3,630

645 9.0 4,950

945 10.0 6,420

1,390 11.1 8,260

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

129

130

137

148

146

142

144

145

P17

146

130

17

312

136

114

96

95

92

17

94

100

103

109

162

20

19

119

213

110

105

198

Nov.

20

19

127

158

143

129

228

20

19

142

124

276

268

176

19

19

136

160

205

265

153

19

19

376

170

14783'

243

18

18

-

Dec.

162

165

139

386

470

19

19

740

814

606

336

470

19

19

574

751

356

481

722

17

17

538

175

76

17

145

176

17

600

612

495

Jan.

17

168

17

17

161

175

516

289

295

18

19

226

358

441

423

455

21

21

466

766

776

841

836

23

23

798

806

792

747

491

21

Feb.

21

805

786

705

203

152

18

18

655

151

310

147

259

18

18

218

139

179

100

113

28

19

19

525

558

602

660

18

18

-

Month

October. ...................................

November ...................................

December. ....................................

Calendar year 19.47 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947 -48 ......................

Mar.

18

19

15

2.3

2.1

2.1

2.5

314

322

318

317

308

304

296

343

436

420

420

420

4 2O

420

420

369

13

12

9.3

13

15

325

420

420

Apr.

414

L39

9.9

9.3

442

473

i

;

£

2,£

132

552

9.3

11

10

9.9

10

10

11

12

1265'

00

2,100

1,590

l,£

5,4

3,6

>30

80

90

3,150"

3,290

3,2

3,2

3,2

2,5

Secondfoot-days

3,775

3,899

10,133

294,556

11,023

7 ,462

7-.135.3

~3B,131.4

146.390

117,030

40,820

31,960

16,186

433,944.7

80

90

70

90

May

2,690

2,450

2,480

2,690

2,640

3,260

6,000

6,040

3,780

3,800

3,620

3,700

4,180

4,990

5,520

6,170

7,180

7,010

5,900

4,820

3,940

3,220

2,660

4,540

5,560

6,850

8,130

7,450

6,180

5,100

3,840

Maximum

312

376

814

4,660

841

805

436

3,890

8,130

6,180

2,27a

1,060

7?g

8,130

June

4,6lO

4,570

5,050

5,450

5,370

5,090

5,300

J5,430

J5,800

6,180

5,840

5,290

4,370

5,030

4,770

4,540

2,670

1,650

1,670

1,780

2,670

2,600

2,530

2,660

2,810

2,900

2,840

2,690

2,520

2,350

Minimum

17

18

17

15

17,

18

2.1

9.3

2,450

i_f 650

1J.80

730

129

2.1

July

2,270

2,060

1,810

1,680

1,510

1,360

1,340

1,230

1 ,220

1,210

1,210

1,210

1,200

1,200

1,190

1,190

1,200

1,190

1,190

1,180

1,190

1,200

1,200

1,200

1,200

1,200

1,200

1,200

1,200

1,190

1,190

Aug.

1,

1,

1,

\!

1,

1,

1,

1,

1,

v 1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

Mean

122

130

327

'_ 807

356

257

230

1,271

4,722

3,901

1,317

1,031

' 540

- 1,186

050

050

050

040

050

050

050

060

050

050

040

040

030

030

030

030

040

040

040

030

040

040

040

040

050

050

030

030

030

030

7 3d

Sept.

715

715

715

715

715

708

72?

71S

708

708

701

701

694

694

687

680

680

680

673

443

397

391

397

332

172

172

158

137

132

129

-

Runoff in 

acre-feet

7,490

7,730

20,100

584,300

21,860

14,800

14,150

75,630

290,400

232,100

63*390

32,100

860,700
STANISLAUS RIVER BASIN 273

Stanislaus River at Ripon, Calif.

Location.- Water-stage recorder, lat. 37°43 I 50", long. 121°06'35", in SE£ sec. 29, T. 2 

B., K. 8 E., at highway bridge 1 mile southeast of Ripon and 15 miles upstream from 

mouth. Datum of gage is at mean sea level, unadjusted (levels by Modesto Irrigation 

District).

Records available.- October 1940 to September 1948 in reports of Geological Survey. April 

I94U to December 1947 in reports of Division of Water Resources, Department of Public 

Works, State of California.

Extremes. T Maximum discharge during year, 6,490 second-feet May 29 (gage height, 54.57 

feet); minimum observed, 130 second-feet Feb. 17, Mar. 9-11.

1940-48: Maximum discharge, 19,700 second-feet Mar. 11, 1943 (gage height, 59.83 

feet); minimum, that of Feb. 17, Mar. 9-11, 1948.

Flood of Feb. 12, 1938, reached a stage of 64.4 feet, from floodmarks. Flood of 

Apr. 1, 1940, reached a stage of 61.1 feet, from floodmarks.

Remarks.- Records fair. Flow regulated by reservoirs and power plants above station (see 

"Kemarks" for Stanislaus River below Melones powerhouse). Many diversions above station 

for irrigation.

cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California, and others. Fifteen dis.- 

charge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

.Oct.

160

168

164

158

152

145

146

154

162

164

164

177

168

164

179

193

184

171

163

160

168

168

164

169

177

196

193

179

171

263

260

Nov.

251

310

255

212

219

263

276

270

319

241

201

222

248

339

363

323

245

204

221

270

321

335

292

228

222

344

306

287

248

326

-

Dec.

236

196

234

270

312

468

427

256

346

766

731

630

575

462

305

370

658

619

544

709

552

317

335

446

344

272

240

260

294

319

586

Jan.

632

450

279

287

229

195

177

177

265

193

168

160

157

152

154

212

241

248

188

164

234

416

435

452

385

231

224

402

440

425

374

Feb.

263

195

209

387

418

366

224

185

171

174

274

187

160

151

al50

a!40

a!30

a!40

a!50

also

a!60

also

also

also

also

203

279

317

303

_

-

Month

October. ...................................

November . ..................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

200

164

169

162

a!40

alSO

alSO

alSO

a!30

a!30

a!30

h!33

alSO

157

166

164

179

180

179

S163

Sl56

g!48

S145

g!46

g248

384

240

188

169

158

146

Apr.

142

144

146

184

195

226

255

214

179

162

209

272

246

217

198

187

179

169

308

2,020

1,970

1,600

1,330

2,040

2,8OO

2,160

2,030

2,030

2,220

2,730

-

Secondfoot-days

5,404

8 , 161

13,079

147,342

8,746

6 , 086

5,274

26,762

109,246

90,917

10,591

5 495

4)920

294,675

May

3j020

2,760

2,530

2,420

2,350

2,190

2,180

3,660

3,620

2,760

2,500

2,280

2,300

2,590

3,140

3,630

3,880

4,440

5,090

5,060

4,470

3,620

2,840

2,140

2,920

3,570

4,360

5,520

6,390

5,840

5,170

Maximum

263

363

766

2,680

632

418

384

2 ,800

6,390

4,790

1,130

212

179

6,390

June

,240

,080

,250

,510

,600

,630

,330

,140

,240

,370

,640

,790

,410 "

,840

,750

,710

,560

,330

1,240

1,050

987

1,440

1,520

1,360

1,410

1,530

1,640

1,590

1,440

1,290

-

Minimum

145

201

196

136

152

130

130

142

2,140

987

182

164

142

130

July

1,130

1,020

903

750

641

544

406

330

287

278

250

233

231

211

217

208

204

204

209

201

208

195

190

195

201

195

204

182

184

193

187

Aug.

212

180

172

172

174

169

172

184

185

177

169

166

176

171

182

184

179

164

164

200

168

180

190

177

171

180

172

169

169

177

190

Mean

174

272

422

404

282

210

170

892

3 524

3!o31

342

177

164

805

Sept.

177

169

166

176

179

176

179

166

157

176

158

152

156

142

152

156

157

163

164

168

160

171

162

160

157

164

166

169

154

168

Runoff in 

acre-feet

10,720

16,190

25,940

292,300

17,350

12,070

10,460

53,080

216,700

180,300

21,010

10,90O

> "

584,500

a No gage-height record; discharge computed on basis 

records for Stanislaus River at Orange Blossom Bridge, 

g Computed from graph based on gage readings, 

h Computed from staff-gage reading.

>f 1 discharge measurement and unpublished
274 STANISLAUS RIVER BASIN

North Pork Stanislaus River near Avery, Calif.

Location.- Water-stage recorder, lat. 38°14', long. 120°17', in sec. 35, T. 5 N., R. 15 E., 

YUU feet upstream from intake of Utica Canal, 3.5 miles upstream from Beaver Creek, and 

5 miles northeast of Avery. Altitude of gage, about 3,400 feet (from topographic map).

Drainage area.- 163 square miles.

Records available.- July 1914 to September 1922, November 1928 to September 1948.

Average discharge.- 27 years (1914-22, 1929-48), 415 second-feet.

Extremes.- Maximum discharge during year, 4,550 second-feet May 16 (gage height, 7.82 feet) 

minimum, 11 second-feet Oct. 16.

1914-22, 1928-48: Maximum discharge, 17,700 second-feet Dec. 11, 1937 (gage height, 

14.1 feet, from floodmarks), from rating curve extended above, 3,400 second-feet on basis 

of A\/d~ studies; minimum, 5.5 second-feet Dec. 6,'7, 1929.

Remarks.- Records good. Plow partly regulated by four reservoirs (total capacity now 16,200 

acre-feet). Diversion from Beaver Creek into river, above station.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 tc September 1948

Day

1

2

3

4

5

6

7

8

10

11

12

13

14

16

17

18

19

21

22

23

24

25

26

27

28

29

30

31

Oct.

34

34

33

32.

30

25

22

27

18

37

62

41

26

17

13

39

190

74

54

66

76

69

94

103

81

72

66

64

89

162

115

Nov.

106

124

124

106

113

103

39

83

79

72

65

64

59

57

64

71

70

69

68

61

54

52

51

55

53

55

SI

63

66

83

-

Dec.

83

80

72

71

66

57

53

54

49

53

54

52

49

48

47

48

50

48

49

52

51

47

45

45

46

46

45

46

47

35

46

Jan.

46

100

165

213

252

209

319

683

362

256

202

187

167

158

152

145

140

138

130

127

130

127

127

126

126

117

103

106

101

96

91

Feb.

88

68

68

62

64

64

62

64

60

SI

55

54

54

54

60

75

98

109

114

114

116

149

152

126

116

120

126

125

108

_

Month

December. ..................................

Calendar year 1947 ......................

May. .......................................

September. ..................................

Water year 1947-48 ......................

Mar.

109

109

103

95

97

96

96

100

102

100

99

99

115

115

107

114

110

100

117

102

103

143

178

210

161

151

194

214

202

202

220

Apr.

265

333

269

216

194

176

164

164

228

322

254

234

249

282

451

543

1,140

1,200

1,070

1,200

1,250

1,160

919

799

1,110

1,250

1,340

1,410

1,000

769

Secondfoot-days

2,245

1,634

91,088

5,403

2,586

54,032

1,717

136,192

Hay

640

703

856

1,203

1,730

2,480

2,350

1,320

1,110

1,070

1,360

1,720

2,200

2,350

2,550

3,070

2,730

2,000

1,300

1,050

913

1,060

1,660

2,240

2,740

3,150

2,580

1,740

1,510

1,450

1,250

Maximum

190

124

83

1,920

683

152

220

3,150

84

3,150

June

1,400

1,920

2,060

2,030

1,530

1,880

1,970

1,930

2,090

1,930

1,640

1,550

1,350

1,380

1,220

1,110

1,000

955

890

862

769

769

683

676

680

649

590

543

491

436

-

Minimum

13

51

35

13

46

54

95

164

640

436

53

50

39

13

July

390

333

287

250

218

190

174

163

152

145

137

129

117

109

97

89

82

76

70

64

60

56

53

61

59

57

55

53

56

65

64

Aug.

61

61

59

57

56

55

58

63

62

61

61

60

59

58

57

56

56

55

54

54

53

53

53

53

53

51

51

51

50

50

50

Mean

60.2

74.8

52.7

250

174

89.2

131

1,745

1,233

126

55.8

57.2

372

Sept.

52

56

56

56

55

55

55

55

57

58

58

58

57

57

56

56

58

60

60

59

58

56

53

49

46

39

46

78

84

74

-

Runoff in 

acre feet

3,700

4,450

3,240

180,700

10,720

5,130

8,060

39,590

107,300

73,370

7,770

3,430

3,410

270,200

Peak discharge (base. 2.000 sec.-ft.).- May 6 (10:30 p.m.) 3,660 sec.ft.; May 16 (10:30 p.m.) 4,55O 

sec.-ft.; May 26 (ll p.m.) 4,540 sec.-ft.; June 3 (12 p.m.) 2,570 sec.-ft.
STANISLAUS RIVER BASIH 275

Location.- Water-stage recorder, lat. 38°12', long. 120°01', in SW^ sec. 16, T. 4 M. , R." 

Ib K. at Strawberry, 0.1 mile downstream from bridge on State Highway 108 and 0.5 mile 

downstream from Herring Creek. Altitude of gage, about 5,350 feet (from topographic

map) .

Extremes.- Maximum discharge during year, 1,180 second-feet May 26 (gage height, 5.38 

1'eetJ; minimum, 2.7 second-feet Mar. 21.

1511-17, 1938-48: Maximum discharge, 1,870 second-feet June 4, 1945 (gage height, 

6.3 feet), from rating curve extended above 1,000 second-feet on basis of logarithmic 

plotting; minimum, 1.3 second-feet Nov. 22, 23, 1946.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. Flow regulated "by Strawberry Reservoir beginning in 1916 (capacity, 18,300 acrefeet); no diversion.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

gating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.3

1.4

1.5

1.6

4.0 

7.0

200

244

294

348

410

4.0 

4.4

478

634

830

1,060

Discharge, in second-feet, water year October 1947 to Septemberi948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

21

lib

26

27

29

30

Oct.

61

46

9.8

12

13

29

74

95

95

64

36

36

35

31

h30

h30

alS

h9.0

nil

nil

12

12

11

11

10

10

9.8

42

22

17

Nov.

11

11

19

22

19

19

21

11

10

22

12

20

20

22

12

12

21

20

20

20

20

9.8

9.8

21

20

24

11

22

13

16

Dec.

24

34

40

43

40

12

12

39

33

86

139

88

13

12

85

106

55

45

36

27

27

35

36

30

23

22

22

22

30

30

29

Jan.

21

21

21

20

29

21

26

S3

35

29

25

31

30

30

30

28

23

23

47

60

107

137

90

19

33

60

61

60

59

42

11

Feb.

28

56

56

56

55

55

64

81

82

50

18

28

72

68

56

56

36

23

22

22

22

23

23

23

23

42

50

38

39

-

Month

October. ......................... . . ......

December. ..................................

Calendar year 1947 ......................

March. .....................................

May..............'. .........................

September. .................................

Water year 1947-48 ......................

Mar.

38

38

37

36

36

19

4.6

4.3

4.3

4.3

4.0

4.0

4.3

4,3

4.0

4.0

4.6

4.0

4.0

4.0

4.0

4.9

5.5

8.2

6.7

5.5

6.1

7.0

7.0

a8

a9

Apr.

alO

all

12

11

9.8

10

9.4

9.0 '

10

11

9.8

9.8

10

12

15

20

29

38

52

68

92

82

62

54

68

78

69

84

60

51

-

- Secondfoot-days

1,275

26,238.3

1,755

38,153.6

May

45

48

53

76

112

168

173

108

96

95

121

160

208

232

269

556

626

485

334

246

198

198

340

624

800

948

846

533

434

451

334

Maximum

139

740

59

948

June

358

548

654

666

492

689

740

758

874

820

720

680

633

671

569

556

525

522

471

458

351

410

410

434

454

424

378

357

342

294

-

Minimum

12

3.8

56

4.0

July

256

204

134

80

62

61

62

63

59

53

49

45

40

36

31

32

27

23

17

15

14

13

12

11

11

38

55

58

58

58

58

Aug.

56

56

56

56

-56

56

58

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

Mean

41.1

71.9

58.5

104

Sept.

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

58

58

58

58

58

58

58

58

58

58

58

58

56

~

Runoff in 

acre-feet

1,870

1,010

2,530

52,050

2,540

2,510

664

3,440

3,480

75,670

a No gage-height record; discharge Interpolated on basis of record of gate' operations 

h Computed from staff-gage reading.
276 STANISLAUS RIVER BASIN

South Fork Stanislaus River near Long Barn, Calif.

Location.- Water-stage, recorder and masonry control, lat.' 38°05', long. 120°ll", in sec. 

25, T. 3 N., R. 16 E., 600 feet downstream from Lyons Dam, 2 miles west of Long Barn, 

and 14 miles northeast of Sonora. Altitude of gage, about 4,100 feet (from topographic map) .

Drainage area.- 67.2 square miles.

Records available.- November 1937 to September 1948.

Average discharge.- 10 years (1938-48), 84.8 second-feet.

Extremes.- Maximum discharge during year, 985 second-feet May 26 (gage height, 5.09 feet); 

minimum, 0.1 second-foot Apr. 4, Aug. 15.

1937-48: Maximum discharge, 2,070 second-feet June 2, 1938 (gage height, 7.14 feet) 

from rating curve extended above 1,400 second-feet; no flow at times during 1938-39, 

1946.

Remarks.- Records excellent above 30 second-feet, poor below. Flow regulated by Lyons 

and Strawberry Reservoirs since beginning of record (total usable capacity, 23,800 

acre-feet). Tuolumne Canal (see p.278) diverts at Lyons Dam; Philadelphia Canal (see 

following page) diverts 12 miles above station into basin of Middle Fork Stanislaus 

River.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

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.

3.2

3.2

3.2

3.7

3.7

3.7

3.7

3.4

3.4

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.4

3.4

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.4

3.4

3.4

3.4

3.4

Nov.

3.7

3.7

3.4

3.4

3.7

3.7

3.9

3.9

4.1

4.1

4.1

3.7

3.7

3.7

3.7

3.4

3.4

3.4

3.7

4.1

3.7

3.4

3.2

3.2

3.2

3.2

3.2

3.4

3.4

3.4

-

Dec.

3.7

3.4

3.4

3.4

3.4

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

3.2

3.2

3.2

3.2

3.0

3.0

3.0

3.0

3.0

Jan.

3.0

3.0

3.0

3.0

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

3.4

3.4

3.4

3.4

3.4

3.4

3.2

3.2

3.2

3.2

3.2

3.2

Feb.

3.2

3.0

3.0

3.2

3.2

3.2

3.2

3.0

3.0

3.0

3.0

3.0

3.0

2.8

2.8

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

2.6

1.4

-

Month

December. ...................................

Calendar year 1947 ......................

May. .......................................

September ..................................

Water year 1947 48 ......................

Mar.

3.4

2.6

2.4

2.8

3.0

3.0

3.0

3.0

3.0

3.0

2.8

3.2

3.4

3.4

3.4

3.2

3.0

2.8

3.0

3.0

3.2

3.4

4.1

3.4

2.1

1.3

1.2

2.6

3.7

3.0

Apr.

2.8

e.5

e.2

e.l

e.2

e.2

e.2

e.2

el. 5

3.0

3.0

2.8

1.2

1.9

2.6

2.8

2.8

3.2

5.5

43

121

197

151

110

96

1O6

84

81

68

49

-

Secondfoot days

100.0

10,195.2

85.6

90.6

48.1

23,955.2

May

43

56

63

7£

11C

172

197

111

80

62

75

107

147

192

194

304

598

468

316

237

174

170

27^

540

722

871

8OO

496

37^

376

318

Maximum

3.7

4.1

3.7

664

3.4

3.2

4.1

197

871

756

194

3.2

2.6

871

June

251

432

52O

626

465

512

678

640

756

743

594

552

476

54O

453

423

404

421

398

388

144

46

320

340

358

360

312

284

23S

246

-

Minimum

3.2

3.2

3.0

1.4

3.0

1.4

1.2

.1

43

46

1.2

.1

1

.1

July

194

134

72

17

6.0

3.2

2.8

2.4

2.2

2.1

1.7

2.6

2.8

2.1

1.9

1.9

2.1

2.2

2.1

2.6

2.2

2.1

2.1

1.2

1.2

1.9

1.9

1.7

1.7

1.7

a2

Aug.

a2

a2

a2

a2

a2

1.7

1.6

1.9

2.1

1.9

2.2

2.2

1.5

e.2

e.l

e.2

el

el

1.3

1.9

2.6

2.4

3.2

3.2

3.0

2.6

1.9

1.1

.7

1.5

1.9

Mean

3.56

3.59

3.23

27.9

3.21

2.95

2.92

38.0

281

431

15.4

1.77

1.60

65.5

Sept.

1.9

1.9

1.6

1.6

1.6

1.3

1.6

1.7

1.9

1.9

1.9

1.9

1.7

1.7

el

el

el. 5

2.6

1.9

1.3

1.3

1.3

1.5

1.5

1.6

1.7

1.6

1.5

1.3

1.3

~

Runoff in 

acre-feet

219

214

198

2O,220

198

170

180

2,260

17,300

25,620

947

109

95

47,510

a No gage-height record; discharge interpolated.

e Stage-discharge relation Indefinite; discharge computed on basis of trend of page-height
STANISLAUS RIVER BASIN

Philadelphia Canal near Strawberry, Calif.

277

Location.- Water-stage recorder and concrete control, lat. 38°11' , long. 120°03', in sec. 

30, T. 4 N., R. 18 E., 250 feet downstream from diversion dam on South Fork Stanislaus 

River and 3 miles southwest of Strawberry post office. Altitude of gage, about 4,800 

feet (from topographic map).

Extremes - Maximum daily discharge during year, 61 second-feet May 5; no flow May 23-25. 

T9~o9-48: Maximum daily discharge, 64 second-feet Dec. 11, 1941; no flow at times 

during each year except 1943, 1946, 1947.

Remarks.- Records excellent. Canal diverts from right bank of South Fork Stanislaus 

Kiver for power development in Spring Gap power plant of Pacific Gas & Electric Co., 

tailrace empties into Middle fork Stanislaus River above station at Sand Bar Flat.

Cooperation.- Water-stage recorder record, furi.ished by Pacific Gas & Electric Co.-, obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

60

53

8.5

13

13

13

28

59

59

46

10

10

10

10

10

10

10

9.3

7.0

9.6

9.9

9.9

9.9

9.9

9.9

9.9

9.9

37

47

23

18

Nov.

9.3

9.1

19

21

21

20

20

10

i 9.9

21

11

21

19

21

12

12

20

21

20

20

20

9.3

9.1

21

20

20

9.6

21

10

10

-

Dec.

20

23

24

25

24

13

12

25

24

37

59

46

14

14

36

58

56

47

38

25

23

32

36 29

22

23

21

21

30

23

28

Jan.

20

23

21

20

29

24

26

53

37

30

26

33

31

30

30

28

21

20

30

38

57

59

48

18

25

58

59

58

58

47

11

Feb.

21

57

57

57

57 .

57

57

58

58

32

18

30

42

52

58

57

41

23

23

22

21

21

21

21

21

39

52

40

38

_

-

Month

October ....................................

November ...................................

December ........................ ..........

Calendar year 1947 ......................

January. ................................. .

February. ..................................

March ......................................

April ......................................

MAV may. ............ ..........................

June .......................................

July. ......................................

August. ....................................

September. .................................

Water year 1947 -48 ......................

Mar.

38

38

38

38

38

25

3.2

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

3.1

2.3

2.5

2.3

2.3

2.3

2.3

2.6

2.5

2.5

2.5

2.8

2.8

2.8

Apr.

2.2

9.0

16

14

14

12

12

12

15

17

16

15

16

16

17

17

33

54

58

57

58

55

56

58

60

59

58

59

58

56

-

Secondfoot-days

642.7

487.3

914

13,856.3

1,068

1,151

276.8

999 2

1,509

1,704

1,307

1,804 

1,744

13,607.0

May

54

57

58

60

61

60

57

55

56

56

58

58

58

57

57

59

54

55

52

53

54

16

0

0

0

23

55

56

57

58

55

Maximum

60

21

59

61

59

58_P

60

61

59

60

59

59

61

June

58

58

56

54

50

53

57

58

59

56

53

55

58

59

57

57

58

58

58

58

58

59

57

57

56

57

57

58

58

57

-

Minimum

7.0

9.1

12

5.3

11

18

2 3

2.2

0

50

13

57

58

0

July

57

57

57

57

58

59

60

59

59

55

52

47

42

38

33

35

29

26

18

16

15

15

14

13

13

36

57

58

58

57

57

Aug.

57

57

57

57

58

57

58

58

58

58

58

58

58

58

58

58

58

58

59

59

58

58

59

59

59

59

59

59

59

59

59

Mean

20.7

16.2

29.5

38.0

34 5

39 7

8.93

33.3

48.7

56 . 8

42.2

58 . 2

58 . 1

37.2

Sept.

59

59

59

59

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

-

Runoff in 

acre-feet

1,270

967

1,810

27,480

2,120

2,280

549

1,980

3^380

2,590

3,580

3,460

26,980

889419 O - 50 - 19
278 STANISLAUS RIVER BASIN

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, 25.0 feet downstream from Lyons 

Reservoir on ."outh Fork 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 1948. 

Average discharge.- 11 years, 21.7 second-feet.

Extremes.- Maximum daily discharge during year, 54 second-feet June 16-20, 22, 25; minimuir 

daily, 2.9 second-feet Mar. 10.

1937-48: Maximum daily discharge, 54 second-feet June 26, 27, July 1, 1938, June 16- 

20, 22, 25, 1948; no flow at times.

Remarks.- Records excellent. Canal diverts from left bank of South Fork Stanislaus River 

for power and domestic supply in vicinity of Sonora.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

' 1

?

a

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

2?

23

24

25

26

27

28

29

30

31

Oct.

20

19

19

18

18

22

19

19

17

16

16

16

14

13

13

12

12

11

11

11

11

11

11

10

10

10

11

11

10

10

10

Nov.

10

10

10

11

11

6.4

5.6

7.1

6.9

6.9

6.9

7.1

7.1

6.7

6.5

6.5

6.5

6.3

6.3

6.1

11

12

12

12

12

12

12

12

12

12

Dec.

12

12

12

12

12

12

12

11

11

12

12

12

12

12

12

10

10

10

10

10

9.9

9.9

8.7

8.2

8.2

8.0

8.0

8.5

8.2

8.2

Jan.

8.5

8.5

8.5

8.5

8.5

8.5

8.2

8.2

8.2

8.2

8.0

8.0

hS.O

h8.2

h8.2

hS.O

a7.9

a7.7

7.6

7.4

7.8

8.5

8.5

8.5

8.5

8.5

8.2

8.0

8.0

8.0

7.8

Feb.

7.6

8.0

8.2

11

18

21

21

20

18

13

11

11

11

12

12

12

12

12

12

11

10

11

11

9.9

9.9

10

16

16

-

Month

December. ..................................

Calendar yea^-194? ......................

March ................ r .....................

May. .......................................

September. ........... .....................

Water year 1947-48 ......................

Mar.

9.9

10

10

9.9

10

10

10

10

6.4

2.9

3.5

4.8

8.0

17

9.6

8.8

16

16

14

12

12

11

10

21

14

11

11

10

10

11

Apr.

11

9.1

11

11

11

11

9.6

9.6

9.6

10

10

10

11

11

11

10

10

10

6.0

,4.4

6.5

7.1

5.3

5.0

5.1

5.1

15

27

31

30

-

Secondfoot days

431

322.3

7,816.9

253.1

333.8

333.4

826

7,250.1

May

30

31

31

32

32

32

33

32

32

32

32

32

32

32

33

52

43

39

38

38

38

38

39

39

39

39

39

38

38

38

38

Maximum

22

12

39

8.5

21

21

31

52

54

32

54

.June

37

39

39

39

39

39

38

38

38

38

38

38

38

38

49

54

54

54

54

54

52

54

53

53

54

45

39

39

39

39

-

Minimum

10

5.6

8.0

5.4

7.4

7.6

2.9

4.4

30

37

21

21

2.9

July

39

39

39

36

24

21

21

21

21

21

21

23

23

22

22

21

21

21

21

20

21

21

21

15

22

21

21

21

21

21

21

Aug.

21

26

27

26

26

28

29

29

33

35

35

35

31

38

38

37

36

33

35

33

32

32

29

28

29

29

29

30

30

30

30

Mean

13.9

9.00

10.4

21.4

8.16

12.6

10.8

11.1

35.8

44.0

23.3

31.0

27.5

19.8

Sept.

30

30

30

30

30

29

29

31

32

31

31

31

30

29

28

28

27

26

26

26

27

27

27

25

24

24

24

22

21

21

-

Runoff in 

acre-feet

855

535

639

15,500

502

725

662

661

2,200

2,620

1,430

1,910

1,640

14,380

a No gage-height record; discharge interpolated, 

h Computed from staff-gage reading.
STANISLAUS RIVER BASIN 279

South San Joaquin Canal near Knights Ferry, Calif.

Location.- Water-stage recorder and concrete control, lat. 37° 51 '20", long. 120° 38 '15", 

in sec. 15, T. 1 S., R. 12 E., 0.8 mile downstream from head gate at Goodwin Dam and 

4 miles upstream from Knights Ferry. Altitude of gage, about 345 feet (from topographic map ) .

Records available.- May 1914 to September 1948.

Average discharge.- 29 years (1914-30, 1931-32, 1936-48), 369 second-feet.

Extremes . - Maximum daily discharge during year, 1,070 second-feet June 25, 26, 29, 30, 

 July 1-3; no flow Apr. 10-21, 30, May 3.

1914-48: Maximum daily discharge, 1,070 second-feet July 1-3, 1921, June 25, 26, 

29, 30; July 1-3, 1948; no flow at times each year.

Remarks . - Records good except those for periods of no gage-height record, which are fair. 

uanai diverts from right bank of Stanislaus River at Goodwin Dam for irrigation in 

Oakdale and South San Joaquin Irrigation Districts.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

58

68

69

77

84

79

62

54

61

82

104

95

44

134

108

106

68

40

41

39

40

53

52

56

49

18

Nov.

2.9

2.9

2.9

2.9

2.6

2.6

2.6

2.6

2.6

2.6

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.2

3.2

3.2

3.2

3.5

3.5

3.5

3.5

3.2

3.2

3.2

2.9

-

Dec.

aO.5

a. 5

a. 5

2.6

4.4

4.4

2.6

4.1

5.9

5.9

5.9

4.1

4.4

3.5

1.6

1.6

2.0

3.8

3.8

3.8

3.8

3.8

3.5

3.5

3.5

3.5

3.5

3.8

3.8

3.8

3.8

Jan.

2.6

3.5

46

38

77

193

278

318

306

217

26

92

254

299

304

319

234

a25

a!20

339

380

412

426

227

38

181

374

410

417

383

149

Feb.

25

218

387

379

313

210

144

30

165

288

238

313

225

137

22

56

192

102

109

145

118

29

20

182

348

390

410

196

22

-

Month

October ....................................

November ...................................

December. ..................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947 -48 ......................

Mar.

19

13

2.3

2.0

2.9

4.4

4.1

126

309

317

312

300

291

328

3«8

412

525

468

466

448

425

417

369

366

332

100

35

46

251

446

410

Apr.

409

333

330

60

411

623

516

443

21

O

0

O

0

O

0

0

O

0

O

0

0

226

442

660

821

883

957

973

502

O

Secondfoot-days

1,763.9

94.5

106.2

138,166.4

6,888.1

5,413

7,884.7

8,610,

23,746.6

25,610

22^040

10 ,918

140,357.0

May

2.0

2.6

0

98

234

258

853

1,030

1,030

1,040

1,040

1,040

1,040

1,040

1,050

1,030

1,040

1,020

1,000

873

776

774

915

1,030

984

921

829

744

734

684

635

Maximum

134

3.5

5.9

959

426

410

525

973

1,050

1,070

1,070

746

482

1,070

June

354

218

222

441

666

758

765

766

833

881

859

857

864

873

878

885

877

963

,020

,020

,040

,060

,050

,060

,070

,070

,060

,060

,070

,070

-

Minimum

4.1

2.6

.5

-

2.6

20

2.0

0

0

218

814

539

87

0

July

,070

,070

,070

,050

,030

957

939

869

848

840

840

832

832

832

830

829

829

825

819

814

822

835

843

846

843

840

840

845

849

848

846

Aug.

746

730

728

730

730

732

732

74O

736

726

718

714

712

710

710

708

718

707

708

708

7OO

702

708

713

710

708

707

7O4

704

702

539

Mean

56.9

3.15

3.43

379

222

187

2 54

287

766

854

880

711

364

383

Sept.

482

476

476

480

480

479

75

82

79

79

76

75

473

469

465

466

453

455

452

321

257

248

248

248

149

97

102

98

91

87

Runoff in 

acre-;feet

3,500

187

211

274,000

13,660

10,740

15,640

17,080

47,100

50,800

54,110

43,720

21,660

278,400

a No gage-height record; discharge Interpolated.
280 STANISLAUS RIVER BASIN

Oakdale Canal near Knights Perry, Calif.

Location.- Water-stage recorder, lat. 37°51'30", long. 120°38'00", in SE-f sec. 10, T. 1 S., 

K7~nr~E., 1,800 feet downstream from head gate at Goodwin Dam and 4 miles upstream from 

Knights Perry. Altitude of gage, about 350 feet" (from topographic map).

Records available.- May 1914 to September 1948.

Average discharge.- 30 years (1914-32, 1936-48), 116 second-feet.

Extremes.- Maximum daily discharge during year, 410 second-feet June 25, July 1; no flow 

Oct. 14 to Apr. 20, Apr. 20 to May 1.

1914-48: Maximum daily discharge, 410 second-feet May 26, 194V, June 25, July 1, 

1948; no flow during periods in each year.

Remarks.- Records good. Canal diverts water from left bank of Stanislaus River at Goodwin 

JJam for irrigation in Oakdale irrigation district.

Cooperation.- Gage-height record and 11 discharge measurements furnished by Oakdale Irrigation District.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

59

50

47

54

55

52

58

72

73

33

17

14

1.7

0

0

0

0

O

0

0

O

O

0

0

0

0

0

0

0

0

0

Nov. Dec. Jan.

o

0

0

0

0

o

o

0

0

0

0

0

0

o

0

0

0

0

o

o

0

o

7.2

0

0

0

0

o

0

0

0

Feb.

0

0

0

o

0

0

0

0

0

o

0

0

0

o

0

0

0

0

4.2

0

0

o

o

0

0

o

0

0

0

-

Month

October. ...................................

November . ........................ .........

December . ..................................

Calendar year 1947 ......................

January. ...................................

February. ..................................

March ......................................

April .................................... .

May........................................

June .......................................

July....... ................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar. Apr.

0

O

0

O

0

0

0

0

0

0

0

0

o

o

0

0

0

0

0

0

16

89

104

203

256

341

241

53

0

0-

Secondfoot days

585.7

0

0

54,304.7

7.2

4.2

0

1,303

9,920

11,824

11,489

9,693

5,089

49,920.1

May

0

32

226

339

368

393

397

397

397

395

401

397

401

402

403

400

391

395

373

185

86

89

233

335

390

401

399

401

400

310

184

Maximum

73

0

0

410

7.2

4.2

0

341

403

410

110

333

215

410

June

194

355

403

397

396

402

403

405

403

400

403

397

396

397

399

401

400

403

403

4,01

401

403

406

403

410

409

406

407

407

409

-

Minimum

0

0

0

0

0

0

0

0

0

194

353

237

38

0

July

410

409

409

409

406

405

406

371

355

353

353

354

356

354

353

353

354

360

355

356

359

364

365

365

364

364

364

365

366

366

365

Aug.

333

316

317

316

316

317

317

320

317

315

317

316

315

314

313

311

313

313

313

311

317

319

317

316

314

313

312

311

311

311

237

Mean

18.9

0

0

150

.23

.14

0

43.4

320

394

371

313

170

136

Sept.

208

212

213

214

214

213

211

215

214

212

212

211

208

206

203

203

205

211

209

170

149

145

144

146

84

62

62

52

43

38

-

Runoff in 

acre feet

1,160

0

0

108,700

14

8.3

0

2,580

19,680

23,450

22,790

19,340

10,090

99,010
CALAVERAS RIVER BASIN 281

Calaveras River at Jenny Lind, Calif.

Location.- Water-stage recorder, lat. 38°05', long. 120"52', in SW^ sec. 22, T. 3 N., R. 

1U K., at bridge on Milton road, 0.2 mile south of Jenny Lind and 6.5 miles downstream 

from Cosgrove Creek. Altitude of gage, about 220 feet (from topographic map).

Drainage area.- 395 square miles.

Records available.- .-January 1907 to September 1948.. 

Average discharge.- 39 years (1908-23, 1924-48), 247 second-feet.

es.- Maximum discharge during year, 3,890 second-feet Apr. 

tJ; no flow during several months.

1907-48: Maximum gage height observed, 21.0 feet, (present 

charge uncertain; no flow during late summer of most years.

Extremes.- Maximum discharge during year, 3,890 second-feet Apr. 5 (gage height, 8.72 

IT no flow during several months.

307-48: Maximum gage height observed, 21.0 feet, (present datum) Jan. 31, 1911, 

large uncertain; no flow during late summer of most years.

Remarks.- Records good. Flow regulated by Hogan Reservoir at Stockton flood-control dam 

beginning in 1930 (usable capacity, 75,000 acre-feet), by small reservoir on North 

Fork Calaveras River, by diversion from North Fork into Mokelumne River Basin, and 

by diversion from North Fork Stanislaus River into Calaveras River above station.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge,_ir ^eoond^feetj 

(Shifting-control method used Nov. 4 to Mar. 14)

-- - " * Apr. 7 Apr.

1.6

1.7

1.8

1.9

2.0 

2.2 

2.5

2.4

2.5

2.6 

2.8 

5.1 

5.4 

5.7

49

64

82

126

215

512

425

4 0

6 5

7.0

545

760

1,010

1,500

1,660

1,950

2,520

1.75

1.8

1.9

2.0

2.1

0

1.0 

4.0 

8.0

2.5

8 toJSept. 

2 22 2.9 

5.1 

5.4 

3.7

146

198

505

425

Note.- Same as preceding table above

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

31

41

52

29

25

24

25

22

20

18

18

18

19

20

20

21

21

20

18

18

18

18

18

17

17

17

17

-

Dec.

17

17

17

17

17

17

18

19

20

21

22

22

22

22

22

22

24

28

32

33

51

28

26

24

22

22

22

22

22

22

22

Jan.

22

22

25

62

71

58

49

47

50

58

55

48

42

59

56

35

52

51

29

27

27

26

26

26

25

25

24

25

22

22

21

Feb.

21

21

21

21

23

37

104

102

80

114

207

148

102

77

69

66

69

78

78

73

64

56

52

50

52

48

45

44

45

_

-

Month

December ...................................

Calendar year 1947 ......................

April ......................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

48

48

45

43

42

41

59

59

59

42

44

45

45

255

475

337 445"

371

519

421

502

226

177

1,650

2,850

1,710

656

413

305

248

207

Apr.

183

171

803

970

2,510

2,710

2,040

925

555

817

1,150

841

567

459

561

309

286

262

237

214

201

248

525

274

224

195

182

175

208

597

Secondfoot-days

0

580

692

19,947.1

1,101

1,967

11,905

18,757

4,708

1,450

0

0

41,329.9

May

491

366

278

230

204

188

177

169

159

146

156

115

110

108

101

95

88

95

127

159

169

154

127

108

97

88

82

78

74

76

115

Maximum

0

41

55

1,580

71

207

2,850

2,710

491 -136

0

0^

2,850

June

156

106

86

78

75

87

64

62

60

58

54

50

46

43

43

42

38

37

54

55

31

29

27

26

24

25

21

20

20

19

Minimum

0

0

17

0

21

21

59

171

74

19

0

o

0

0

July

17

13

8.0

4.8

5.6

6.8

9.2

10

10

11

11

11

11

9.8

8.0

7.2

6.4

6.0

4.0

1.9

.2

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

0

19.5

22.5

54.6

55.5

67.8

384

625

152

48.5

5.55

0

0

113

Sept.

Runoff in 

acre^feet

0

1,150

1,570

59,550

2,180

5,900

25,610

57,200

9,340

2,880

341

0

0

81,970
282 CALAVERAS RIVER BASIN

Cosgrove Creek near Valley Springs, Calif.

Location.- Water-stage recorder, lat. 38°09', long. 120°50', in SE£ sec. 35, T. 4 N., R.

l(J K., 0.4 mile upstream from mouth and 2.5 miles south of Valley Springs. Altitude

of gage, at out 580 feet (from topographic map).

Drainage area.- 20.6 square miles.

Records available.- October 1929 to September 1948.

Average discharge.- 19 years, 7.44 second-feet.

Extremes.- Maximum discharge during year, 1,300 second-feet Apr. 5 (gage height, 6.20 

1'eet); no flow for several months.

1929-48: Maximum discharge, 3,180 second-feet Dec. 21, 1945 (gage height, 8.38 

feet), from rating curve extended above 1,400 second-feet on basis of velocity-area 

studies and logarithmic plotting; no flow for several months each year.

Remarks.- Records good. No storage or diversion above station.

Discharge, in second-feet, water year Octoberl947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

0.1

o

0

0

0

o

0

0

0

0

0

0

0

o

o

0

0

0

0

0

0

o

o

0

o

0

0

0

0

0

-

Dec. Jan. Feb.

0

o

0

o

0

0.1

. .9

1.2

4.8

11

2.6

1.4

.8

.6

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.2

.3

_

-

Month

October. ......................... .........

November ............................ ...

December ...................................

Calendar year 194? ......................

January ....................................

February ...................................

March. .....................................

April ................................ ....

May. .......................................

June .......................................

July. ......................................

August ..................................

September ................. ............. .

Water year 1947-48 ......................

Peak discharge (base, 31o sec. -ft.).- Mar.

Mar.

0.2

.2

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.4

4.9

7.3

5.9

28

7.3

24

7.0

3.4

2.3

8.2

263

59

20

10

11

10

8.6

7.3

Apr.

6.6

6.3

17

26

262

93

32

20

16

66

53

21

12

8.2

5.6

4.7

4.5

4.0

3.2

2.8

2.6

3.8

3.4

2.5

2.2

1.8

1.6

2.0

5.3

7.3

-

Secondfoot-days

0

.1

o

558 . 8

0

26.6

489.5

697.0

31 s'.G. 2

0

0

0

1,250

24 (5 p.m.)

May

3.2

2.3

1.9

1.5

1.2

1.1

.9

.8

.8

.6

.5

.4

.4

.4

.3

.2

.2

.4

1.8

3.2

2.0

1.4

.9

.7

.4

.4

.4

.3

.3

.8

1.5

Maximum

0

.1

0

154

0

11

263

262

3.2

1.4

0

0

0

263

June

1.4

.8

.6

.4

.3

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

e

o

o

0

0

0

0

0

0

0

0

0-

Minimum

0

0

0

0

0

0

.1

1.6

.2

0

0

0

0

0

July Aug.

Mean

o

.OO3

0

1.53

0

92

15.8

23 2

1.01

. 19

0

o

o

3.42

Sept.

Runoff in 

acre- feet

0

.2

0

1,110

0

53

971

1,380

62

11

0

O

0

2,480

489 sec. -ft.; Apr. 5 (5:30 p.m.) 1,300 'sec. -
CALAVERAS RIVER BASIN 283 

Stockton diverting canal at Stockton, Calif.

Location.- Water-stage recorder, lat. 37°59', long. 121°17', in Campo De Los Franceses

Urant, 200 feet downstream from bridge on Sanguinetti Lane, at north edge of Stockton, 

San Joaquin County. Altitude of gage, about 21 feet (from topographic map).

Records available.- January 1944 to September 1948.

Extremes.- Maximum discharge during year, 3,820 second-feet Apr. 6 (gage height, 6.39 feet); 

no flow for several months.

1944-48: Maximum discharge, 7,820 second-feet Feb. 3, 1945 (gage height, 9.9 feet, 

from flotfdmarks); no flow for several months each year.

Remarks. - Records good. Canal carries practically entire flow of Calaveras River (seep. 281) 

aTveJrting from Mormon Slough at lat. 37°57'36r', long. 121°12'06", and discharging into 

Calaveras River 0.2 mile below station. Mormon Slough diverts from Calaveras River at' 

Bellota.

Cooperation.- Five discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

0

0

0

0

0

0

20

8.8

3.0

3.4

7.0

7.0

1.4

.1

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

Feb.

0

0

0

0

0

0

0

3.8

71

52

91

147

100

62

42

34

25

29

35

34

29

23

23

9.1

7.7

8.1

5.7

5.7

6.6

-

-

Month

Ictober. ...................... ............

' ovember. ........................ .........

December. ..................................

Calendar year 1947 ......................

.January. ...................................

^bruary ........................ .........

"<irch. .....................................

April. .....................................

'«ay.... ....................................

June. ......................................

July... ....................................

August .....................................

September. .................................

Hater year 1947-48 ......................

Mar.

6.2

4.3

6.6

5.7

3.2

.9

0

0

.3

0

a. 3

h2.6

a6

12

274

380

303

411

277

327

323

231

169

342

2,830

2,150

973

495

331

245

196

Apr.

164

142

247

979

1,670

3,190

2,350

1,300

684

574

1,060

960

672

480

380

315

277

256

231

208

190

184

266

266

228

190

169

161

164

235

-

Secondfoot-days

0

0

0

14,543.0

50.7

843.7

10 , 305 . 1

18,192

4,112

627.2

0

0

0

34,130.7

May

429

389

292

238

205

181

167

153

142

130

115

104

89

83

79

74

67

67

87

118

142

147

120

98

72

60

56

52

46

52

58

Maximum

0

0

0

1,480

20

147

2,830

3,190

429

98

0

0

0

3,190

June

81

98

78

61

50

44

39

36

33

30

27

22

17

7.6

.1

0

2.4

1.1

0

0

0

0

0

0

0

0

0

0

0

0-

Minimum

0

0

0

0

0

0

0

142

46

0

0

0

0

0

July Aug.

Mean

0

0

0

39.8

1.64

29.1

332

606

133

20.9

0

0

0

93.3

Sept.

Runoff in 

acre-feet

0

0

0

28,850

101

1,670

20,440

36,080

8,160

1,240

0

0

0

67,690

a No gage-height record; discharge computed on basis of interpolated gage heights. 

h Computed from staff-gage reading.
BEAR CREEK BASIN

Bear Creek near Lockeford, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°09'15", long. 121°08'15", in 

NWijSE-f sec. 31, T. 4 N. , R. 8 E., at county road bridge 0.8 mile southeast of Lockeford. 

Altitude of gage, about 90 feet (from topographic map).

Drainage area.- 48.4 square miles.

Records available.- November 1930 to September 1933, October 1943 to September 1948. 

October 19^6 to November 1930 at site 3 miles downstream.

Extremes.- Maximum discharge during year, 129 second-feet Apr. 6 (gage height, 4.25 feet); 

no now for several months.

1930-33. 1943-48: Maximum discharge, 2,260 second-feet Feb. 2, 1945 (gage height, 

14.45 feet), from rating curve extended above 1,900 second-feet; no flow for several 

months each year.

Remarks.- Records good except those for period of no gage-height recdrd, which are fair. 

No storage or diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

3 

4 

5

6 

7 

8

10

11 

12

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

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

Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ........................ . . .....

mber. ..................................

lendar year 1947 .......... . ... .

ary

h. .....................................

St. ....................................

ember . .................................

ter year 1947-48 ......................

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 

28

5.6 

2.0 

1.0 

.6 

.4 

.2

Apr.

0.1

.1 

.1 

2.4

27

61 

19 

7.3 

3.9

17

19 

9.1 

5.0 

2.8 

2.0

1.2 

.9 

.7 

.4 

.4

.2 

.2 

.2 

.1

0

0 

0 

0 

0 

0

May

2.4 

1.2 

.5 

.2 

.1

.1 

0 

0 

0 

0

0 

0

.1 

.1

0

0 

.4 

.2 

.4 

.4

.3 

.1

0 

0 

0

0 

0 

.2 

.3 

1.2 

.2

fooHays »axi 

0 0 

.2 .1

0 0

194.1 46

0 0 

0 0 

59.8 28- 

180.1 61 

8.4 2.4 

.6 .2 

2.1 .2 

.4 .1 

0 0

251.6 61

June

0.1

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

.1

0 

0 

0 

0 

0

0 

0

.1

.2 

.1

0 

0 

0 

0 

0

Minimum

0 

0 

0

0

0 

0 

0

o

0 

0 

0 

0 

0

'0

July

0 

0 

0 

0 

0

0 

0 

0 

0

o 

.1

0

.1

0

.1

0 

a.l 

a. 2

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

a. 2

a.l

aO 

aO 

aO 

aO 

aO

Aug.

ao 

aO 

0 

0 

.1

.1 

.1 

0 

0 

0

0 

0 

0

.1

0

0 

0 

0 

0 

0

0 

0 

0

0 

0

0 

0 

0 

0

0 

0

Sept.

Mean Runo" i? 

acre-feet

0 0 

.01 .4

0 0

.53 384

0 0 

0 0 

1.93 119 

6.00 357 

.27 17 

.02 -1.2 

.07 4.2 

.01 .8 

0 0

.69 500

Peak discharge (base, 210 see. -ft.).- Ho peak above base.

a No gage-height record;discharge computed on basis of recorded range In stag<
MOKELUMNE RIVER BASIN 285

Salt Springs Reservoir near West Point, Calif.

Location. - Staff gage, lat. 38°30', long. 120°12', in SEij sec. 33, T. 8 N., R. 16 E., at 

Salt Springs Dam on North Pork Mokelumne River, 2 miles upstream from Cold Creek and 18 

miles northeast 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 1948.

Extremes.- Maximum contents observed during year, 140,000 acre-feet July 1, 4, 5, 7, 8, 10- 

12(elevation, 3,958.0 feet); minimum observed, 5,910 acre-feet Feb. 14 (elevation, 

3,742.1 feet).

1931-48: Maximum contents observed, that of July 1, 4, 5, 7, 8, 10-12, 1948; no contents Jan. 30 to Feb. 5, Feb. 18-26, 1932, Mar. 1-25, 1933, Jan. 29-31, 1945.

Remarks.- Reservoir is formed by concrete-faced rock-fill dam, completed in 1931; storage 

began in March 1931. Capacity, 139,000 acre-feet between elevations 3,707.25 feet 

(powerhouse intake) and 3,957.0 feet (upper operating limit, 1 foot below top of radial 

ga*5es) 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 

(see p. 291). Records show contents available at 5 p.m., for use through powerhouse.

Cooperation.- Record of contents, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Contents, in acre-feet, water year October 1947 to September 1948

Day

1

2

5

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

Dot.

62,600

61,600

6O.7OO

59,700

59.OOO

58,500

57,600

56,800

55.6OO

54,700

54,100

53,500

52,800

51,800

5O,8OO

5O,OOO

51,000

51,000

50,800

50,200

49,600

48,800

49,300

49,4OO

49,300

48,800

48,OOO

47,OOO

46,200

45,8OO

45,300

Nov.

44,500

44,100

43,600

43,OOO

42,300

41,400

4O,7OO

39,90O

39,000

38,500

37,800

37,100

36,OOO

35,2OO

34,500

33,800

33,000

32.3OO

31,500

31,000

30,300

29,600

28,800

28,OOO

27,100

26,300

25,9OO

25,600

25,300

25,100

-

Dec.

24,900

24,60O

24,200

23,200

22.5OO

21,900

21,40O

20,7OO

20,100

19,300

18,5OO

18,OOO

17,600

17,300

16,900

16.0OO

15,300

14 , 800

14,300

13,700

13,600

13,200

12,700

12,300

11,900

11,600

11,500

11.5OO

11,100

1O,4OO

9,700

Jan.

9,670

9,520

9,760

1O.1OO

1O,50O

1O,8OO

11,400

13,700

14,700

15,300

15,800

16,OOO

15,900

15,5OO

 15,2OO

14,700

14,400

14,600

14,6OO

14,200

13.8OO

13,300

12,800

12,300

11,7OO

11,100

10,500

9,870

9,200

8,6OO

7,920

Fab.

7,790

7,550

7,390

7,21O

7,010

6,830

6,680

6,56O

6,390

6,290

6,2OO

6,100

6,OOO

5,910

6,150

6,050

6,050

6,080

6,120

6,240

6,510

6,96O

7,370

7,390

7,260

7,O8O

6,860

6,930

7,160

_

-

Mar.

7,060

6,760

6,44O

6,O5O

6,O5O

6,17O

6,220

6,220

6,340

6,560

6,560

6,560

6,710

6,910

6,980

7.O6O

7,160

7,710

8.OOO

8,190

8,410

8,710

9,OOO

9,430

9,990

10,6OO

10,7OO

11,300

11,800

12,300

12,900

Apr.

13,400

14,000

14,800

15,400

16,000

16,600

17,200

17,500

18,100

18,9OO

19.6OO

20,200

2O.8OO

21,500

22,800

24,200

26,400

29,200

31,400

33,500

36,000

38,100

39,800

41,2OO

42,600

44,700

46,800

48,200

5O.OOO

51,700

May

52,3oo

53,500

55,000

56,6OO

58,9OO

62.3OO

66,9OO

69,6OO

71,500

72,800

74,30O

76,2OO

79,300

81,900

85,300

90,4OO

95,800

99,500

101,400

102,700

103,6OO

1O4,7OO

107,100

110,9OO

115,100

120,400

125,700

127,900

127,900

127,500

127,500

June

127,600

129,500

132,200

134,900

135,400

135,700

137,400

137,100

137,700

137,700

137,300

137,800

138,000

138,500

138,100

137,800

138,300

138,500

138, 6OO

138, 5OO

138", 300

138,700

138,700

139.0OO

139.5OO

139,100

139, 3OO

139,400

139,300

139,800

-

July

140,000

139,900

139.9OO

140,000

140,000

139,900

140,000

140,OOO

139,900

14O,OOO

14O,OOO

140,000

139,800

13.9,200

138, 8OO

138,500

138,500

138,600

138,400

138,000

137,600

137,400

137,000

136,800

136, 9OO

136,600

135,800

135,400

135,300

134,800

134,300

Aug.

134,400

134,700

134,300

134,300

134,200

134,200

133,800

134,100

133,600

133,100

132,600

132,200

131,400

130,800

130,200

129,400

128,500

127.8OO

127,200

126,700

126,400

126,200

125,700

125,200

124,500

123,800

122,900

121,9OO

121,400

120,600

119,700

Sept.

119,100

118,000

117,100

117,100

117,100

117,100

116,100

115,100

114,200

113,200

112,200

111,100

110,000

108,900

107,800

106,800

1O5,7OO

104,7^0

1O3,6OO

102,600

101,600

100,500

99,4OO

98,400

97,400

96,300

95,300

94,200

93,20O

92,200

-

Monthly elevatlc ntents, water year October 1947 to September 1948

Date

Oct 31

Calendar year 1947

Aug 31

Sept. 30. ....................

Elevation 

(feet)

-

3,904.1

Contents 

(acre-feet)

-

92,20O

Change In contents 

during month 

(acre-feet)

-5,7OO

-27,500
MOKELUMNE RIVER BASIN

North Pork Mokelumne River below Salt Springs Dam, Calif.

Location.- Water-stage recorder, lat. 38°29', long. 120°13', in SW^ sec. 33, T. 8 N., R. 16 

K7TOT3 mile downstream from Salt Springs Dam and 1.7 miles upstream from Cold Creek. Altitude of gage, about 3,600 feet (from topographic map).

Drainage area.- 160 square miles.

Records available.- September 1926 to September 1948.

Average discharge.- 21 years (1927-48), 435 second-feet (combined flow of North Fork Mokelumne Kiver and Tiger Creek powerhouse conduit).

Extremes.- Maximum discharge during year, 2,970 second-feet June 10 56 height, 8.81 feet); minimum, 0.5 second-foot Mar. 6.

1926-48: Maximum discharge, 8,740 second-feet Mar. 25, 1928,(gage height, 15.62 feet, 

present datum), from rating curve extended above 4,000 second-feet; minimum, 0.2 secondfoot Mar. 31, 1931.

Remarks.- Records good. Plow regulated since 1931 by Salt Springs Reservoir (see preceding 

page) and diversion in Tiger Creek powerhouse conduit (see p.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Apr. 2-23)

Oct. 1 to Apr. 23 Apr. 24 to Sept. 30

1.5 2.0 1.8 9.8 1.6 5.0 2.4 50 3.5 211 6.0 1,170

1.6 3.8 2.0 19 1.7 8.0 2.6 69 4.0 329 7.0 1,740

1.7 6.3 2.2 30 1.9 16 2.9 108 4.5 485 8.0 2,400

2.1 .27 3.2 155 5.0 675 9.0 3,110

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

OT *SO

24

25

26

27

28

30

31

Oct.

9.4

9.4

9.1

9.1

8.8

9.1

9.4

8.8

9.1

9.4

8.4

7.7

8.0

8.8

9.4

10

8.8

8.8

9.1

8.8

8.8

21

3.6

5.8

7.0

7.7

9.4

8.8

8.8

8.8

8.4

Nov.

2.8

3.0

3.6

3.4

3.2

3.2

3.2

3.0

3.0

3.2

3.4

3.4

3.2

3.0

3.0

3.0

3.2

3.4

3.6

3.4

3.2

3.2

3.2

3.4

3.2

3.0

2.7

2.8

2.3

2.3

Dec.

2.7

3.0

3.0

3.0

2.8

2.8

2.7

2.8

2.7

2.8

2.7

2.7

2.3

2.3

5.0

3.0

2.8

2.7

2.5

2.2

2.0

2.8

2.7

2.5

2.0

2.5

3.2

4.0

2.8

3.0

3.2

Jan.

3.2

4.0

3.6

3.6

3.8

3.8

4.6

5.0

5.0

5.8

4.8

5.6

4.8

4.3

4.3

4.0

4.0

4.3

4.3

4.O

3.8

3.6

3.4

3.4

3.2

4.6

4.8

4.8

4.8

4.6

4.6

Feb.

4.6

4.6

4.8

4.8

4.8

4.8

4.6

4.6

4.8

5.0

4.8

4.8

4.6

4.3

4.8

5.3

6.0

6.3

6.0

5.8

5.6

5.8

6.3

6.0

5.8

5.3

4.8

4.8

4.8

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1947 .....................

January. ...................................

February ...................................

March.. ....................................

April ......................................

Unu May. .......................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1947 48 ......................

Mar.

4.8

4.8

4.6

3.4

3.6

2.7

3.8

3.6

3.2

3.2

3.2

3.2

4.0

4.6

4.6

5.0

5.3

5.3

5.8

5.6

5.6

6.6

7.7

9.4

7.4

5.3

5.8

4.6

4.3

4.0

3.4

Apr.

3.0

4.3

7.7

6.0

5.3

5.3

5.0

5.8

8.4

12

7.7

5.0

5.0

5.3

5.8

6.0

6.3

6.0

6.0

6.0

6.0

7.4

7.4

5.9

5.6

5.6

6.5

6.5

7.4

9.2

-

May

9.6

12

13

13

13

13

14

14

13

218

204

292

305

319

146

13

377

366

306

329

322

14

14

404

408

429

772

1,200

1,630

1,440

1,140

forays Maximu»

277.5 21

93.5 3.6

85 . 2 4.0

5,699.9 496

132.4 5.8

149.3 6.3

148.4 9.4

189.4 12

10,762.6 1,630

42,935 2,810

1,760 661

605 21

440 17

57,578.3 2,810

June

1,000

1,130

1,140

1,360

1,570

1,640

1,950

2,540

2,620

2,810

2,390

2,120

1,980

2,210

2,290

1,820

1,190

1,090

1,400

1,420

1,080

835

795

652

824

1,150

688

693

454

94

-

Minimum

3.6

2 3

2.0

2.0

3.2

4.3

2.7

3.0

9.6

94

21

18

12

2.0

July

661

254

168

52

24

24

24

24

24

24

24

25

26

24

24

24

23

23

23

23

23

22

22

22

22

22

22

22

22

22

21

Aug.

21

21

21

21

21

20

20

20

20

20

20

20

20

20

20

20

20

20

19

19

19

19

19

19

18

18

18

18

18 18

18

Sept.

17

16

16-

16

16

16

16

16

16

16

15

15

15

15

15

15

14

14

15

15

14

14

14

13

13

13

13

13

12

12

"

.. .. Runoff in Mean acre-feet

8 . 95 550

3.12 185

2.75 169

15.6 11,310

4.27 263

5.15 296

4.79 294

6.31 376

347 21,350

1,431 85,160

56.8 3,490

19.5 1,200

14.7 873

157 114,200
MOKELUMNE RIVER BASIN 287

Mokelurane River near Mokelumne Hill, Calif.

Location.- Water-stage recorder, lat. 38°18'40", long. 120°43'10", in sec. 1, T. 5 N., R. 

11 K., at highway bridge, 1.2 miles northwest of Molfielumne Hill and 8 miles downstream" 

from confluence of North and South Forks. Altitude of gage, about 650 feet (from 

topographic map).

Drainage area.- 538 square miles.

Records available.- November 1927 to September 1948.

Average discharge.- 20 years (1928-48), 877 second-feet.

Extremes.- Maximum discharge during year, 5,810 second-feet June 10 (gage height, 8.08 

feet); minimum, 30 second-feet Sept. 5.

1927-48: Maximum discharge, 23,300 second-feet Mar. 25, 1928 (gage height, 16.10 

feet), from rating cur,ve extended above 11,000 second-feet on basis of velocity-area 

studies; minimum, 14 second-feet Oct. 27, 1929.

Remarks.- Records excellent. Flow regulated by Salt Springs Reservoir beginning in 1931 

(see p. 285), several smaller reservoirs and three power plants. Diversions above 

station for irrigation and domestic use.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, In second-feet)

Oct. 1 to June 10 June 11 to Sept. 30

1.9 114 3.1 550 5.5 2,410 1.4 34 2.4 262 4.

2.0 138 3.4 705 6.O 2,970 ]

2.2 191 3.8 945 6.5 3,570 ]

2.4 255 4.2 1,220 7.O 4,220 ]

2.6 326 4.5 1,460 7.3 4,64O 2

.5 47 2.6 334 5.

1.6 62 2.9 462 5.

.8 98 3.2 615 6.

.0 142 3.6 850 6.

2.8 408 5.0 1,900 2.2 196 4.0 1,12O

5 1,620

0 1,970

5 2,460

1 3,090

8 3,960

Discharge, in second- feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

50O

540

540

525

417

404

630

661

650

645

661

443

370

575

585

694

1,010

412

486

486

500

540

286

209

183

252

495

555

625

710

640

Nov.

625

661

430

536

645

570

535

545

535

462

520

515

520

505

520

530

525

520

515

500

448

481

471

462

45T

443

319

412

326

297

-

Dec.

269

443

471

462

443

430

395

391

439

462

462

400

315

266

276

457

409

511

386

387

231

248

408

408

221

183

169

131

148

387

412

Jan.

273

249

531

350

466

312

408

9OO

778

408

400

417

555

570

580

575

565

387

334

434

569

590

615

477

564

582

575

570

575

595

580

Feb.-

319

297

555

462

462

490

286

235

248

486

330

 294

294

286

248

266

379

412

434

379

221

221

228

347

490

490

495

370

283

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1947- ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

Ua ay. v .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

liar.

294

417

417

391

272

304

293

103

174

177

174

174

231

490

379

319

362

308

362

334

290

252

255

1,U<?

784

525

434

457-

476

412

374

Apr.

1

1

1

1

i

11

1

1

1

1

1

1

1

1

1

1

1

Secondfoot-days

16,229

14,830

11,020

190,458

15,784

10,307

11,344

32,057

59 250

82,'740

14,809

16,010

15,229

299,609

366

490

802

778

,200

,160

868

700

610

,290

,150

850

749

678

744

952

,080

,390

,140

,130

,280

,580

,540

,280

,230

,370

,410

,500

,510

,230

-

May

1,110

1,040

1,010

1,100

1,480

1,9OO

2,250

1,550

1,220

1,230

1,470

1,650

2,040

2,340

2,190

2,260

2,560

2,220

1,780

1,620

1,440

1,280

1,280

1,980

2,490

2,770

3,130

2,580

3,110

2,840

2,330

Maximum

1,010

661

511

1,310

900

555

1,110

1,580

3,130

4,570

1,200

761

636

4,570

June

2,290

2,870

2,900

3,010

2,890

3,050

3,410

4,080

4,360

4,570

3,870

3,470

3,110

3,340

3,340

2,970

2,550

2,470

2,520

2,560

2^370

2,150-

2,060

2,010

1,930

2,290

1,860

1,750

1,610

1,080

-

Minimum

183

297

131

96

249

221

103

366

1,010

1,080

81

300

43

43

July

1,200

1,110

716

861

677

569

495

511

528

460

373

420

378

504

540

434

308

230

215

352

487

296

243

336

81

232

519

440

281

579

434

Aug.

338 546"

336

371

598

761

564

570

566

616

614

584

578

530

458

558

542

558

128

453

322

e

500

104

>02

517

549

i

4

t

>72

68

137

36

534

Mean

524

494

355

522-

509

355

366

1,069

1,911

2,758

478

516

508

819

Sept.

472

556

608

191

50

43

428

568

551

599

525

636

513

531

546

590

547

572

608

519

525

564

582

618

572

540

577

545

620

433

-

Runoff in 

ao re- feet

32,190

29,410

21,860

377,800

31,310

20,440

22,500

63,580

117,500

, 164,100

29,37ff

31,760

30,210

594,200
288 MOKELUMNE RIVER BASIN

Mokelumne River at Lancha Plana, Calif.

Location.- Water-stage recorder, lat . 38°13'25", long. 120°53'20", in SW£ sec. 4, T. 4 N., 

K . it) K . , 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 (levels 

by East Bay Municipal Utility District)

Drainage area.- 584 square miles.

Records available . - 19 years (1929-48), since start of East Bay aqueduct diversion, 817 second-feet .

Extremes.- Maximum discharge during year, 4,180 second-feet June 8 (gage height, 7.58 feet); 

minimum, 44 second-feet several times January to February.

1926-48: Maximum discharge, 27,300 second-fee't 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 Reservoir beginning Mar. 9, 1929 

(total capacity, 210,000 acre-feet), Salt Springs Reservoir beginning March 1931 (see 

p. 385), several smaller reservoirs and four power plants . Of several diversions above 

station, East Bay Municipal Utility District aqueduct is largest not returned to river.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.1 44 1.6 113 2

1.2 55 1.7 132 2

1.3 67 1.8 152 2

1.4 81 1.9 174 3

1.5 96 2.1 221 3

.3 274 4.0 1,090

.5 338 5.0 1,810

.7 410 6.0 2,660

.0 534 7.0 3,600

.4 735 7.6 4,200

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

249

248

188

211

201

208

256

175

172

171

119

56

125

128

129

130

128

129

56

402

412

409

410

389

450

63

408

413

412

409

421

Nov.

140

62

127

201

139

138

132

122

56

160

121

136

170

147

124

57

122

170

151

156

168

126

118

- 400

281

345

126

238

170

164

Dec.

174

161

176

312

389

188

161

401

424

354

236

277

132

55

409

384

369

430

437

185

107

387

296

337

329

442

401

184

291

314

357

Jan.

132

175

125

54

130

123

280

262

330

246

56

231

213

227

355

346

158

56

332

407

273

234

201

138

55

82

96

120

73

6946'

Feb.

48

284

325

236

48

51

47

46

81

48

47

51

50

46

46

46

46

48

53

50

48

51

50

50

50

48

61

50

48

-

Month

October. ...................................

November . ..................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

MAV nay. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947 48 ......................

liar.

72

89

48

50

50

50

50

139

131

128

269

332

100

55

160

263

224

171

219

51

51

137

226

317

650

645

645

645

486

397

393

Apr.

1

1

1

1

1

1

1

1

1

1

1-

Secondfoot-days

7,677

4,767

9,099

133,200

5,625

2 153

7*243

51,679

74,772 

14,800

13,034 

13,033

231,410

393

394

395

404

414

453

645

650

640

655

650

645

645

645

645

645

645

645

740

080

360

430

480

600

600

600

660

600

620

610

-

May

1,510

1,040

917

851

851

1,060

1,810

1,810

1,730

1,090

1,010

1,210

1,580

1,720

1,720

1,720

1,730

1,730

1,730

1,830

1,890

1,880

1,880

1,660

1,750

2,200

2,400

2,150

2,410

2,410

2,400

Maximum

450

400

442

686

407

325

650

1,620

2,410

4,160

724

504

523

4,160

June

2,410

2,410

2,410

2,670

2,880

2,900

2,910

3,730

4,160

4,150

4,150

3,320

2,880

2,880

2,880

2,880

2,230

1,890

2,200

2,400

2,200

1,680

1,730

1,670

1,380

1,690

1,890

1,720

1,490

982

~

Minimum

56

56

55

47

46

46

48

393

851

982

184

197

257

46

July

635

691

724

645

640

635

635

635

635

214

184

458

451

497

429

439

217

203

436

500

521

542

640

419

196

452

443

440

439

427

378

Aug.

297

497

496

494

480

486

486

197

471

456

453

451

437

297

215

468

489

474

467

470

290

210

432

419

496

440

449

425

385

504

403

Sept.

436

435

487

377

390

324

447

452

504

523

301

273

491

476

464

478

480

459

302

450

450

476

479

488

436

257

486

486

504

422

M an Runoff in 

acre feet

248 15,230

159 9,460

294 18,050

365 264,200

181 11,160

74.2 4,270

234 14,370

918 54,600

1,667 102,500

2,492 148,300

477 29,360

420 25,850

434 25,850

632 459,000
MOKELUMNE RIVER BASIN 289

Mokelumne River near Clements, Calif.

Location.- Water-stage recorder, lat. 38°12'25", long. 121°05'20", in NW-j sec. 15, T. 4 N. , 

R. BE., 700 feet upstream from highway bridge, 1 mile north of Clements, and 3 miles 

downstream from Murphy Creek. Datum of gage is 67.16 feet above mean sea level (levels 

by East Bay Municipal Utility District).

Drainage area.- 630 square miles.

Hecords available.- October 1904 to September 1948.

Average discharge?- 24 years (1904-28), 1,110 second-feet; 19 years (1929-48), 823 secondfeet.(storage and diversion by East Bay Municipal Utility District began March 1929).

Extremes.- Maximum discharge during year, 4,240 second-feet June 12 (gage height, 10.47 

feet); minimum, 6.5 second-feet Jan. 5.

1904-48: Maximum discharge, 25,600 second-feet Mar. 25, 1928 (gage height, 22.45 

feet, site and datum then in use), from rating curve extended above 4,600 second-feet 

and verified by comparison with records for Mokelumne River at Lancha Plana; no flow 

July 9, Aug. 15, 20-23, 1924.

Remarks. - Records good. Concerning regulation and diversions, see. "Remarks" for Mokelumne 

Hiver near Lancha Plana.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge in second-feet) 

(Shifting-control method used Dec. 22 to Apr. 25)

Oct. 1 to June IS June 17 to Sept. 30

1.3 40 2.6 238 5.8 1,48O 2.3 168 3.5 512 5.8 1,510

1.4 50 3.0 343 6.6 1,920

1.6 72 3.4 461 7.0 2,160

1.8 97 3.8 588 8.O 2,760

2.0 125 4.4 810 9.0 3,36O

2.3 175 5.0 1,080 10.5 4,260

2.5 212 4.0 700 6.6 1,95O

I. B 288 4.6 940 7.5 2,460

5.1 376 5.2 1,210

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

380

240

343

183

199

310

225

187

171

169

148

118

71

119

122

130

124

148

102

306

384

384

390

380

370

355

324

384

395

390

386

Nov.

271

123

72

123

198

136

134

138

110

66

163

120

139

164

150

110

63

146

146

149

147

159

103

273

333

316

213

190

160

146

-

Dec.

190

158

160

269

344

254

186

318

409

409

293

378

153

133

227

430

380

382

445 

291

174

360

300

368

356

413

431

331

246

284

313

Jan.

234

119

162

98

53

124

169

291

317

233

217

96

275

210

259

383

252

146

176

381

35?

293

220

161

128

75

84

132

101

87

66

Feb.

54

117

342

242

195

64

51

50

53

87

51

50

50

50

49

47

48

49

54

63

51

53

50

49

53

54

53

68

54

-

Month

October. ...................................

November. ..................................

December ...................... ... .........

Calendar year 1947 ......................

January. ...................................

February. ..................................

March ......................................

April. ..................... . i ..............

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947 48 ......................

Mar.

60

83

76

54

53

51

53

62

135

133

163

394

341

115

124

331

334

167

178

160

56

107

174

252

663

646

642

642

625

315

397

Apr.

1

1

1

1

1

1

1

1

1

1

Secondfoot-days

7,336

4,736

8,973

133,305

5,893

2,249

7,184

27,505

51,614

75,580

14,976

13,017

13,076

232,138

398

400

413

418

464

478

653

646

639

674

660

642

636

636

636

636

633

639

660

985

,320

,440

,450

,610

,610

,630

,630

,630

,630

,640

-

May

1,630

1,110

962

846

842

864

1,740

1,820

1,830

1,340

1,010

1,090

1,510

1,730

1,740

1,740

1,740

1,740

1,750

1,820

1,900

1,890

1,890

1,770

1,640

2,050

3,380

3,150

3,330

2,440

2,420

Maximum

395

332

445

690

383

342

663

1,640

3,440

4,230

768

497

513

4,220

June

2,430

2,410

3,410

2,530

2,870

2,900

2,930

3,400

4,210

4,310

4,220

3,700

2,890

2,890

2,890

3,890

2,460

1,900

2,100

2,380

2,280

1,850

1,670

1,750

1,450

1,530

1,960

1,740

1,580

1,170

Minimum

71

63

132

57

53

47

51

398

843

1,170

171

215

304

47

July

668

692

768

673

660

649

649

649

649

346

190

338

456

538

436

426

278

218

356

466

497

537

639

576

171

351

430

434

438

434

375

Aug.

370

375

493

497

474

480

487

330

353

485

443

459

454

327

354

383

487

484

468

463

374

215

352

437

430

473

443

434

384

447

474

Sept.

412

433

440

480

304

429

358

458

476

513

333

330

413

480

444

482

477

474

456

333

463

447

500

484

472

390

340

489

497

480

-

uoan Runoff in Mean acre-feet

337 14,550

158 9,390

289 17,800

363 362,200

190 11,690

77.6 4,460

232 14,250

917 54,560

1,665 102,400

2,519 149,900

483 39,700

420 35,830

436 25,940

634 460,500
290 MOKELUMNE RIVER BASIM

Mokelumne River at Woodbridge, Calif.

Location.- Water-stage recorder, lat: 38°09 I 30", long. 121 0 18'10", in NE^ sec. 34, T. 4 

N., H. 6 E., at Woodbridge, 0.4 mile downstream from dam and canal intake of Woodbridgs 

Irrigation District. Datum of gage is 14.9 feet above mean sea level (levels by East 

Bay Municipal Utility District).

Drainage area.- 644 square miles.

Records available.- May 1924 to September 1948 (for 1924 and,1925, low-water records 

only).

Average discharge.- 19 years (1929-48), since, start of diversion through East Bay Municipal Utility District aqueduct, 659 second-feet.

Extremes.- Maximum discharge during year, 4,030 second-feet June 12 (gage height, 19.57); 

minimum, 8.2 second-feet Mar. 6-9.

1924-48: Maximum gage height, 26.58 feet, datum then in use (about 30.6 feet, 

present datum), Mar. 26, 1928 (discharge not determined); minimum discharge, 0.9 seconifoot Sept. 3, 1924.

Remarks.- Records good. Concerning regulation and diversions see "Remarks" for Mokelumne 

Kiver near Lancha Plana; between Woodbridge and Lancha Plana are many additional diversions for irrigation, including Woodbridge Canal (see p. 296).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

7

8

9

10

11

12

13

14

15

16

17

18

21

22

23

24

25

26

27

28

29

30

31

Oct.

142

86

58

37

36

36

36

37

37

39

43

39

34

31

30

29

28

29

33

35

96

284

281

295

289

308

131

174

332 "332

313

Nov.

327

174

92

162

481

297

168

145

131

107

107

136

123

140

148

al45

al30

$100

a!30

134

138

154

126

108

289

268

303

158

201

a!60

-

Dec.

alSO

a!60

alSO

155

251

326

212

172

326

379

343

247

261

154

109

272

363

343

379

408

229

146

297

279

318

284

402

373

211

264

292

Jan.

318

179

164

145

101

90

117

213

241

292

229

136

152

212

202

292

319

201

124

224

359

281

248

199

145

101

74

75

98

78

66

Feb.

52

43

145

274

227

116

52

41

39

4O

54

36

26

12

11

13

11

11

11

9.6

10

10

9.0

8.8

9.0

9.0

8.8

9.0

9.0

-

Month

December. ............. .....................

Calendar year 1947 ......................

Hay........................................

September. .................................

Water year 1947-48 ......................

liar.

9.0

9.0

8.8

8.5

8.5

8.5

8.2

8.2

8.2

9.3

10

11

12

12

12

12

12

14

12

13

12

11

9.9

9.9

176

422

422

450

448

377

91

Apr.

137

192

246

278

225

346

346

498

496

494

518

496

476

486

488

494

508

514

532

633

873

1,090

1,140

1,230

1,330

1,320

1,290

1,240

1,350

1,400

-

Secondfoot-days

8,255

63,140

40 539

2,470

lSO,182.2

May

1,400

1,240

839

730

633

516

964

1,370

1,410

1,200

603

600

934

1,170

1,240

1 ,~Z90

1,300

1,300

1,320

1,490

1,560

1,600

1,630

1,630

1,340

1,430

1,790

1,890

1,750

2,180

2,190

Maximum

332

408

643

359

210

3,920"

June

2,220

2,220

2,210

2,250

2,400

2,560

2,460

2,670

3,010

3,480

3,750

3,920

3,290

2,760

2,640

2,500

2,530

1,940

1,630

1,880

1,990

1,760

1,230

1,330

1,150

986

1,450

1,380

1,170

933

-

Minimum

109

10

8 2

933

25

r 8.2

July

455

247

389

304

215

190

165

169

162

141

49

32

26

27

28

27

25

20

15

14

16

17

20

95

89

21

21

22

23

23

PI

Aug.

20

19

19

21

21

21

25

88

23

20

22

22

22

22

20

19

20

21

23

&,

106ei

22

21

21

22

23

2.4

24

23

36

Mean

266

173

82.3

438

Sept.

39

25

25

74

77

29

46

52

54

68

93

42

34

34

49

64

88

95

154

74

60

99

111

134

153

122

61

104

210

1 200

-

Runoff in 

acre-feet

16,370

125,200

2 590

4,900

317,700

a No gage-height record; discharge computed on basis of records for Station near Clements.
MOKELUMNE RIVER BASIN 291

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°30', long. 120°13', in SW-Jsec. 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 1948. 

Average discharge.- 17 years, 252 second-feet.

Extremes.- Maximum daily discharge during year, 559 second-feet June 22, 24, 25, 29; no 

flow at times.

1931-48: Maximum daily discharge, 577 second-feet June 22, 1945; no flow at times 

in each year.

Remarks.- Records excellent. Conduit conveys water of North Fork Mokelumne River from 

tallrace of Salt Springs powerhouse to forebay of Tiger Creek powerhouse, picking up 

water en route from Bear River and several small creeks.

Cooperation.- Watf

tained in conn* 

Disc

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

451 

462 

462 

412 

268

408 

470 

475 

520 

481

390 

282 

429 

514

516

424

229 

280 

299 

329

S80 

232 

0 

29 

166

343 

456 

496 

480 

462 

493

Nov.

476 

378 

443 

481 

t84

482 

478 

474 

460 

415

466 

462 

458 

452 

450

442

440 

439 

436 

408

426 

420 

415 

412 

408

376 

301 

333 

229 

160

;r-stage recorder graph, furnished by Pacific Gas & Electric Co., obsction with a Federal Power Commission project.

harge, in second-feet, water year October 1947 to September 1948

Dec._

371 

385 

382 

381 

375

370 

330 

414 

419 

407

356 

380 

173 

174 

426

385 

363 

357 

389 

186

99 

399 

366 

270 

20

272 

20 

24 

371 

365 

346

Jan.

26 

143 -25 

25 

88

41 

6.2 

4.7 

a4.4 

a4.4

5.5 

219 

276 

286- 

298

300 

227 

11 

276 

339

349 

357 

363 

370 

371

374 

384 

393 

392 

392 

354

Feb.

13 

358 

350 

299 

307

242

26 

26 

233 

117

149 

204 

217 

85 

26

250 

214 

204

187 

142

2.4

3.7 

25 

263 

278

281 

306 

32

25

Month

CHo 

K"re 

I "56

Ca

Janu 

F-br 

H .»ro 

Anri

June 

July 

Augu 

S«pt

Wa

mber. ...................................

lendar year 1947 

ary

ember. .................................

ter year 1947-48 ......................

Mar.

270 

280 

286 

176 

176

25 

12 

117 

48 

.2

98 

131 

20 

28 

28

28 

18 

10 

14 

12

9.1 

9.0 

6.6

20 

19

4.0 

.4 

.4

.3 

.3 

.2

Apr.

0.2 

.3 

1.9 

2.5

2.5

12 

2.8 

.3 

2.5 

11

13 

5.1 

.2 

.2 

.2

.2

.2 

.2 

.2

.1

1.1 

80 

82 

83

52

79 

78 

75 

75 

29

Secondfoot-days

11,638 

12,504 

9,575

107,922.7

6,704.2 

4,865.1 

1,846.5 

689.7 

447.9 

7,160.0 

8,795.4 

13,173 

14,417

91,815.8

May

0.2 

.2 

.2 

.2 

.2

.1 

.1 

.2

.5 

31

43 

42 

38 

44

21

0 

17 

3.6 

63 

52

59 

.5 

.5 

3.5 

3.5

3.5 

4.8 

3.5 

4.2 

4.2 

4.2

Maximum

520 

484 

426

554

393 

358 

286 

83 

63 

559 

427 

517 

541

559

June

122 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

4.8 

4.8 

4.8 

4.8

4.8 

439 

502 

302 

295

514 

559 

558 

559 

559

558 

556 

558 

559 

446

Minimum

0 

160 

20

0

4.4

2.4 

.2 

.1 

0 

4.8 

.7 

88 

.5

0

July

368 

364 

398 

426 

378

318 

299 

302 

266 

239

225 

213 

369 

427 

287

270 

77 

60 

233 

366

261 

111 

374 

.7 

.7

383 

388 

278 

336 

410 

368

Aug.

88 

450 

431 

367 

364

364 

331 

277 

516 

516

516 

516 

502 

402 

414

517 

482 

454 

418 

410

200 

201 

475 

516 

516

516 

516 

500 

451 

516 

431

Sept.

516 

517 

372

262 

524 

528 

534 

534

534 

534

536 

538 

538

536 

535 

536 

538 

540

540 

540 

541

540 

536

529 

528 

512 

499 

499

Moan Runoff in "ean acre-feet

375 23,080 

437 24,800 

309 IS.,.990

296 214,000

216 13,300 

168 9,650 

59.6 3,660 

23.0 1,370 

14.4 888 

239 14,200 

284 17,440 

425 26,130 

481 28,600

251 182,100

a No gage-height record: discharge 

1-ig of operations .

computed on basis of partial gage-height record and po
MOKELUMNE RIVER BASIN

Cold Creek near Mokelumne Peak, Calif.

Location.- Water-stage recorder, lat. 38°31' , long. 120°13', in sec. 28, T. 8 N., R. 16

K., a.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.

Hecord's available.- July 1927 to November 1942, October 1943 to September 1948. 

Average discharge.- 20 years (1927-42, 1943-48), 58.3 second-feet. 

.Extremes.- Maximum discharge during year, 930 second-feet May 26 (gage height, 4.98

reet); no flow Sept. 26-30.

1927-48: 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 Av/d" studies; no flow Aug, 17 to Oct. 7, 1931, and Sept. 26-30, 1948. 

Remarks.- Records good except those for periods of ice effect or doubtful or no gageheight record, which are poor. No storage or diversion above station. 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co.,

obtained in connection with a Federal Power Commission project.

Rat-ing table, water year 1947-48, 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 

3.6 

4.0 

4.5

122 

177 

242 

344 

476 

1.0 6.2 2.3 85 £90

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

t>

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

40. 2

d.2

d.2

.2

.1

.1

.3

.8

.4

4.9

25

5.4

2.1

1.2

1.6

245

73

22

14

12

26

23

13

8.4

7.1

6.0

5.1

4.6

31

50

43

Nov.

45

44

34

26

24

23

18

19

17

14

12

blO

b9

b8

b8

13

16

15

14

bll

9

8

6

7

10

16

18

20

30

35

Dec.

30

20

15

13

10

9

8

6

7

7

b7

b7

b7

b7

b7

b6

b6

b6

b8

b7

b6

5.4

5.2

5.2

5.8

6.8

6.8

6.6

b6

b5

b5

Jan.

5.1

19

95

167

103

67

280

270

111

61

44

36

33

b30

b28

b26

b25

b24

b20

b20

b!9

18

21

22

22

b!5

b!5

b!5

b!4

b!4

bl3

Feb.

b!2

blO

b!2

b!2

bll

bll

12

12

12

11

11

12

12

12

15

20

28

32

25

28

28

45

38

30

25

30

30

24

23

-

Month

December. ...................................

Calendar year 1947 ......................

April ......................................

May........................................

July. ......................................

September ..................................

Water year 1947-48 ......................

Mar.

20

19

bl8

18

20

20

20

20

20

20

20

20

20

20

19

19

18

18

17

17

20

30

40

30

25

30

b40

50

40

30

35

Apr.

60

80

60

50

40

30

32

30

32

35

30

30

35

45

90

100

120

100

110

140

189

130

85

88

150

143

137

126

83

66

-

Secondfoot-days

625.9

256.8

15,123.7

3.2

23,603.1

May

61

71

98

163

277

398

293

143

107

114

181

256

353

362

426

500

373

234

143

107

98

152

324

434

515

574

387

273

216

185

163

Maximum

245

45

30

436

.2

574

June

322

423

429

339

229

447

388

437

518

405

346

301

341

317

290

266

253

242

225

213

217

200

190

199

180

158

140

122

104

86

-

Minimum

0.1

6

5

.1

10

30

1.0

0

0

July

68

50

40

34

28

24

23

21

19

18

16

1311'

8.9

7.6

6.4

5.4

4.4

3.7

3.2

2.7

2.4

2.1

1.9

1.8

1.6

1.5

1.3

1.2

1.1

1.0

Aug.

0.9

.9

.8

.8

.8

.8

.8

.7

.7

.6

.6

.6

.5

.4

.4

.4

.3

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Mean

20.2

18.0

8.28

41.4

20.1

24.3

81.5

257

13.7

.42

.11

64.5

Sept.

0.1

.1.1

.1

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

Runoff in 

acre-feet

1,240

1,070

509

30,000

3,280

1,160

4,850

26

6.3

46,820

Peak discharge (base,500 sec.-ft.).- Oct. 17 (4 p.m.) 740 sec.-ft.; Jan. 7 (9 p.m.) 604 sec.-ft.; 

May 7 (9:30 p.m.) 69O sec.-ft.; May 16 (8:30 p.m.) 830 sec.-ft.; May 26 (7:30 p.m.) 930 see.-ft.; 

June 9 (9 p.m.) 855 sec.-ft.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge interpolated.

Hote.- No gage-height record Nov. 21 to Dec. 10, Feb. 7-26, Mar. 4 to Apr. 20; discharge computed 

on basis of 1 discharge measurement, ranges in stage, weather records, and records on nearby strea-ns.
MOKELUMNE RIVER BASIN 293

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., 

at Fardoe Camp, 2 miles downstream from Bear River Reservoir of Pacific Gas & Electric 

Co. Altitude of gage, about 5,-650 feet (from topographic map).

Drainage area.- 33.0 square miles.

Records available.- July 1927 to September 1948.

Average discharge.- 21 years, 99.8 second-feet.

Extremes.- Maximum discharge during year, 1,390 second-feet May 26 (gage height, 5.80 feet); 

minimum, 3.0 second-feet Oct. 28.

1927-48: 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.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. About 6,000 acre-feet is stored each year ,at reservoir above station 

and usually released during late summer and early winter. No diversion above station.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Revisions (water years).- W 861: Drainage area.

Rating table, water year 1947-48, except periods of Ice effect 

(gage height, In feet, and discharge, In second feet)

2.6 

4.1 

6.2 

9.1

1.2

1.4 

1.6 

1.9

2.2 

2.6

3.0 

3.4

loo

163

244

344

3.8 

4.2 

4.6 

5.0

460

588

738

925

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Ib

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

77

72

66

60

53

46

37

21

8.8

40

52

47

37

20

7.1

54

95

90

84

80

64

22

74

70

65

61

48

4.3

12

8.4

4.3

Nov.

4.9

7.1

6.2

5.8

7.9

5.6

4.5

4.3

4.1

3.8

3.6

3.6

3.4

3.5

3.8

5.8

5.4

5.2

4.9

4.7

.7

.5

.5

.5

.5

4.7

4.9

5.2

5.6

6.0

Dec.

6.2

5.8

5.2

5.6

5.4

5.4

5.4

5.4

5.4

5.6

5.6

5.6

5.6

5.6

5.6

5.8

5.8

5.8

5.8

5.8

5.8

5.8

6.0

6.0

6.0

6.0

6.0

6.0

6.5

6.5

6.5

Jan.

6.8

80

67

57

47

93

255

256

224

208

194

184

172

165

158

151

144

140

133

128

124

119

114

113

108

106

103

*100

96

95

92

Feb.

90

80

70

70

65

60

55

50

50

40

44

32

21

20

21

31

39

43

42

42

41

51

53

48

43

44

44

40

37

-

Month

December ....................................

Calendar year 1947 ......................

April........ ..............................

May. .......................................

July. ......................................

September. .................................

Water year 1947-48 ......................

Mar.

35

35

30

30

30

30

30

30

30

30

30

30

30

30

30

30 .

30

30

30

30

30

35

42

37

37

35

30

30

30

30

35

Apr.

55

65

50

40

35

30

30

30

40

50

45

45

45

60

70

80

100

80

85

91

113

153

128

136

154

292

334

341

216

153

-

Secondfoot-days

1,479.9

179.5

24,084.8

4 032 8

312.1

41,308.5

May

127

128

151

258

415

617

594

285

210

204

313

451

588

654

682

832

715

454

290

226

194

247

487

693

804

897

759

525

448

415

318

Maximum

6.5

680

341

14

897

June

525

724

726

600

409

714

670

714

812

683

608

543

542

529

468

433

400

383

344

339

305

297

266

273

258

235

212

198

180

148

Minimum

5.2

3.1

6

7.4

5.4

July

122

95

74

61

53

51

51

49

48

48

47

46

46

44

44

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

30

Aug.

30

30

30

30

30

27

27

27

26

26

26

25

24

24

23

22

21

20

20

19

18

18

17

17

16

16

15

15

14

14

14

Mean

5.79

66.0

451

10.4

113

Sept.

14

13

13

13

13

13

13

13

13

12

12

11

11

10

10

9.8

9.4

9.4

9.1

8.8

8.8

6.8

8.5

8.5

8.5

8.2

7.9

7.6

7.4

7.4

-

Runoff in 

acre-feet

356

47,770

619

81,940

Winter discharge measurement made on this day.

Note._- Stage-discharge relation affected by Ice Dec. 8-31, Feb. 2-10, Feb. 28 to Mar. 22 Mar 26 

^i?1"' 12 ' N° sage-height record Apr. 13-19, Aug. 16 to Sept. 13; discharge computed on basis of u 

ublished record at Tiger Creek Canal Junction and weather records at Salt Springs Dam.
MOKELUMNE RIVER BASIN 

Middle Fork Mokelumne River at West Point, Calif.

Location.- Water-stage recorder, lat. 38°23'15", long. 120°31'40", in sec. 10, T. 6 K,, 

K. 13 K., 200 feet downstream from highway bridge, 1 mile south of West Point, and 

3.5 miles upstream from South Fork. Altitude of gage, about '2,500 feet (from topographic map).

Drainage area.- 67.2 square miles.

Records available.- October 1926 to September 1948. October 1911 to October 1926 at 

site about 1,^00 feet upstream.

Average discharge.- 36 years (1912-48), 54.7 second-feet.

Extremes.- Maximum discharge during year, 317 second-feet Apr. 5 (gage height, 2.98 feet); 

minimum, 0.8 second-foot Nov. 25.

1911-48: Maximum discharge observed, 2,550 second-feet Jan. 23, 1914 (gage height, 

10.0 feet, site and datum then in use), from rating curve extended above 490 secondfeet; practically no flow Aug. 23 to Sept. 14, 1931, and no flow during part of day 

Sept. 9, 10, 1934.

Remarks.- Records good except those for Jan. 29 to Feb. 2, which are fair. Beginning in 

January 1940 flow slightly regulated by Calaveras Reservoir (capacity, 1,740 acre-feet), 

6 miles above station. Several small diversions above station.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.4 

2.9 

5.0 

8.5

1.1

1.2

1.3

1.5

1.7 

2.0 

2.4 

2.8

105

180

270

Discharge, in second-feet, water year October 1947 to September 194

pay

1

2

3

4

5

6

7

- 10,

11

13

14

16

18

21

26

Oct.

3.0

3.4

2.9

3.2

2.7

3.0

4.0

8.5

6.2

13

13

7.7

12

 53

52

64

63

50

46

44

43

39

35

30

13

7.0

6.6

7.0

16

26

15

Nov.

20

26

15

13

13

12

10

9.4

8.5

7.7

7.3

7.0

7.3

6.2

8.9

12

8.9

7.7

7.3

7.0

6.6

6.6

6.6

6.2

7.0

7.0

7.0

7.0

7.0

7.0

-

Dec.

7.0

7.7

8.5

9.4

8,9

8.5

8.5

7.7

7.0

7.3

7.0

6.6

6.6

6.6

6.6

7.0

9.4

10

8.1

8.1

8.1

8.1

8.1

7.3

6.2

6.6

6.6

6.6

6.6

6.2

6.6

Jan.

5.9

19

34

24

19

17

20

37

26

22

20

17

16

15

14

14

14

13

13

12

12

12

11

10

11

17

31

13

dlO

dll

d!2

Feb.

dll

dll

7.7

8.5

8.5

11

13

17

21

44

24

17

17

17

19

23

25

22

20

18

17

20

21

17

26

41

37

30

20

-

Month

Deo ember. ..................................

Calendar year 1947 .......................

February. ............................... .

March

April ......................................

May

'September. .................................

Water year 1947 48 ......................

Mar.

18

14

13

13

14

13

12

15

16

15

13

13

33

48

39

43

45

37

48

39

34

33

37

173

86

77

79,

68

59

54

49

Apr.

47

59

106

114

213

178

115

94

111

271

225

165

138

124

131

138

150

156

146

144

150

209

216

180

162

156

148

164

176

190

Secondfoot-days

233.5

7,552.4

521 9

449 2

109.6

15,710.6

May

172

160

146

144

150

172

195

176

160

146

138

136

142

148

150

160

168

170

160

158

142

131

131

136

138

146

148

135

122

124

127

Kaximu,

10

179

195

4.2

271

June

114

114

114

115

112

108

108

107

102

100

92

87

82

75

70

64

61

58

54

51

48

44

41

40

38

36

34

32

29

27

Minimum

6.2

1.5

5 9

3.2

2.7

July

26

25

24

22

20

18

18

17

17

15

15

15

16

17

15

14

13

12

12

12

13

13

13

13

12

8.5

7.7

8.1

5.0

5.9

7.0

Aug.

7.0

7.7

8.9

11

11

9.8

9.8

11

13

12

9.4

9.4

8.1

8.9

8.1

7.3

6.6

6.2

7.3

5.9

4.5

4.2

4.5

4.8

4.8

4.5

4.2

3.8

3.4

3.6

3.6

Mean

7.53

20.7

3.65

42.9

Sept.

3.4

3.4

3.2

3.2

3.4

3.4

3.2

3.4

3.4

3.4

3.4

3.6

3.6

3.6

3.6

3.6

3.6

3.8

3.8

3.8

3.8

3.8

3.8

4.0

4.2

4.2

4.0

4.0

4.0

4.0

Runoff in 

acre feet

463

14,980

445

217

si.isa

(base, 160 see.-ft.).- Mar. 24. (3:3O a.m.) 227 see.-ft.; Apr. 5 (10 p.m.) 317

23 (5 a.m.) 245 sec.-ft.; Apr. 30 (6 p.m.) 207 sec.-

mputed from recorded gage height corrected for effect

&

Peak discharge (base, 16O see. _. 

sec.-ft.; Apr. 10 (12 m. J 309 sec.-ft.; Ap 

ft.; May 7 (7 p.m.) 199 sec.-ft.

d Doubtful gage-height record; discharge 

of partly clogged intake.
MOKELUMNE RIVER BASIN 295

South Pork Mokelumne River near West Point, Calif.

Location.- Water-stage recroder, lat. 38°22', long. 120°33', in Sw£ sec. 16 T. 6 N., R. 

13 K., 600 feet downstream from Sawyer Bridge, 2 miles upstream from Middle Pork, and 

2.5 miles southwest of West Point. Altitude of gage, about 2,000 feet (from topographic 

map).

Drainage area.- 73.8 square miles.

Records available.- October 1933 to September 1948.

Average discharge.- 15 years, 8o'.6 second-feet.

Extremes.- Maximum discharge during year, 538 second-feet Apr. 5 (gage height, 6.27 feet): 

minimum, 3.2 second-feet Oct. 2.

1933-48: Maximum discharge, 3,760 second-feet Feb. 2, 1945 (gage height, 9.55 feet), 

from rating curve extended above 2,600 second-feet; no flow Aus. 6, 7, Aug. 12 to 

Sept. 26, 1934. '

Remarks.- Records good. Small diversions above station.

Discharge, in second-feet, water year October 1947 to September 194a

Day

1

?

3

4

5

fi

7

8

9

10

n

12

13

14

15

16

17

18

19

20

21

??

?3

?4

25

26

27

?R

29

30

31

Oct.

4.6

5.5

5.5

5.5

5.2

5.5

8.6

14

12

22

22

14

12

12

13

38

42

24

19

19

20

19

17

16

14

13

13

14

26

44

22

Nov.

29

34

23

21

21

19

18

17

17

17

16

17

16

16

19

23

20

18

18

17

17

17

17

17

17

17

16

16

16

15

-

Dec.

15

15

15

16

16

15

15

15

15

14

15

15

15

15

15

15

21

21

17

17

17

17

16

16

16

16

15

15

15

14

15

Jan.

16

34

59

39

32

28

32

50

38

32

28

26

24

22

22

21

20

19

19

18

18

18

18

17

16

16

17

16

15

15

16

Feb.

17

*b!2

b!3

b!4

b!4

b!4

b!5

b20

47

b28

b24

b24

b24

26

39

37

38

35

31

29

32

35

29

28

29

27

32

29

-

-

Month

December. ..................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

26

*22

22

22

23

21

21

24

29

26

24

23

62

103

74

70

75

55

81

65

54

48

57

352

164

122

111

103

95

89

85

Apr.

87

118

202

219

401

328

198

149

164

337

256

189

162

149

161

173

188

194

185

188

198

276

248

206

192

190

185

206

210

232

-

Seoondfoot-days

521.4

561

489

11,980.2

272.3

20,550.7

May

201

181

171

173

190

228

245

206

183

170

164

164

170

173

168

185

185

179

171

177

161

144

149

157

159

164

161

146

138

149

144

Maximum

44

34

21

320

352

245

11

401

June

129

128

122

113

111

107

104

102

99

94

88

85

80

75

70

65

63

59

56

54

52

51

49

47

44

43

40

39

37

36

-

Minimum

4.6

15

14

3.7

6.6

4.6

July

34

32

32

32

31

31

31

31

29

29

28

27

27

26

26

25

26

22

22

21

21

21

21

21

22

23

22

22

22

21

21

Aug.

18

17

16

17

17

18

17

16

17

16

15

13

13

13

13

13

14

14

15

15

15

16

13

15

14

13

12

12

14

11

11

Mean

16.8

18.7

15.8

32.8

24 5

9.08

56.1

Sept.

9.7

9.3

9.7

9.0

9.7

9.7

.8.6

8.6

8.3

8.0

8.0

8.3

8.3

8.3

7.3

6.6

7.3

9.0

9.7

10

9.0

9.3

9.3

10

11

11

11

10

9.3

9.0

~

Runoff in 

acre-feet

1,030

1,110

9-70

23,760

899

540

40,750

Peak discharge (base, 500 sec.-ft.).- Apr. 5 (9 p.m.) 538 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
296 MOKELUMHE RIVER BASIN

Woodbridge Canal at Woodbridge, Calif.

Location.- Differential water-stage recorder and gate-opening recorder, lat. 38°09'10", 

long. 121°18"00", in SE^ sec. 34, T. 4 N., R. 6 E., at Woodbridge. at point of diversion. 

Datum of gage is 32.18 feet above mean sea level (levels by East Bay Municipal Utility 

District).

Records available.- April 1926 to September 1948. 

Average discharge.- 22 years, 120 second-feet.

Extremes.- Maximum daily discharge during year, 415 second-feet July 24; no flow' for 

several months.

1926-48: Maximum daily discharge, 454 second-feet July 4, 1947; no flow during part 

of each year.

Remarks.- Records fair. Discharge computed from records of gate openings and effective 

head as shown by recorders. Canal diverts from Woodbridge Reservoir on Mokelumne River 

in sec. 34, T. 4 N., R. 6 E., for irrigation of lards south arid west of Woodbridge.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

S

4

5

6

7

R

9

10

11

1?

15

16

21

26

Oct.

284

 219

194

180

148

159

166

144

142

123

124

115

108

116

112

110

95

17

0

80

99

92

75

61

60

59

69

63

28

33

43

Nov.

43

.35

19

23

12

0

O

0

0

0

0

o

o

0

o

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

-

Dec. Jan. Feb.

Month

December. ...................................

Calendar year 1947 ......................

March. .....................................

May

July. ......................................

September. ..................................

Water year 1947-48- ......................

Mar.

0

0

0

0

0

0

0

0

0

0

15

24

79

62

62

64

100

110

119

122

113

97

93

92

130

146

143

132

136

112

1 135

Apr.

176

152

127

118

117-

118

117

113

104

105

102

110

114

110

110

99

90

88

100

127

IS?'

184

181

174

159

173

204

215

196

161

-

SecondToo t-day s

132

0

54,679

8,810

56,062

May

127

102

122

137

173

249

268 '270

266

306

372

386

390

370

364

332

337

345

339

259

221

198

180

183

214

292

323

350

328

225

170

Maximum

0

454

215

353

415

June

160

164

163

166

165

169

199

228

318

327

328

280

244-

252

268

327

343

331

325

305

333

365

370

406

393

361

336

347

399

407

-

Minimum

0

0

180

229

0

July

392

391

369

337

370

381

390

387

392

370

302

233

274

323

364

347

337

256

217

287

332

376

414

415

340

263

282

308

340

346

339

Aug.

309

283

326

369

396

393

371

331

289

316

342

352

347

336

293

253

295

338

362

369

331

251

253 286'

323

355

354

342

337

325

342

Mean

0

150

^9R

294

153

Sept.

333

348

340

330

290

286

289

292

329

353

342

297

283

316

307

317

326

309

296

261

264

279

282

274

265

254

233

237

229

249

Runoff in 

acre-feet

0

108,400

c of rt

17,470

111,200
MOKELDMNE RIVER BASIN 297

Dry Creek near Gait, Calif.

Location.- Water-stage recorder, lat. 38°15', long. 121°13', in NE£ sec. 32, T. 5 N., R. 

7 K., 2 miles downstream from Coyote Creek and 4 miles east of Gait.

Drainage area.- 325 square miles.

Records available.- October 1944 to September 1948. December 1926 to September 1933 at 

site 4 miles downstream.

Extremes.- Maximum discharge during year, 1,360 second-feet Mar. 25 (gage height, 12.47 

feet); no flow at various times.

1926-33, 1944-48: Maximum discharge, 13,200 second-feet Feb. 2, 1945 (gage height, 

13.84 feet, present datum); no flow for several months each year.

Remarks.- Records fair. Many small diversions above station for irrigation. Flow July to 

September was return water from irrigation Just upstream.

Cooperation.- Twelve discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Oct. Nov. Dec. Jan. Feb.

0

0

0

0

0

0

9.0

21

15

73

88

55

39

29

22

23

26

27

23 '21

15

10

7.2

7.7

6.2

.9

0

0

6.1

_

-

Month

December. ..................................

Calendar year 1947 ......................

April ......................................

May. .......................................

September ..................................

Hater year 1947 -48 ......................

Mar.

16

9.9

5.8

1.6

.4

.1

0

0

0

0

3.4

2.5

2.2

150

252

161

291

292

288

292

166

120

101

438

1,100

574

366

246

196

166

147

Apr.

147

130

291

293

482

855

672

402

302

496

602

426

298

245

216

200

195

202

175

162

153

220

230

192

166

154

145

140

186

297

-

Secondfoot-days

0

6,498.1

13.2

17,633.4

May

277

206

162

136

120

106

94

86

86

72

64

56

51

44

40

33

29

34

68

102

126

104

76

60

51

43

37

32

32

39

74

Maximum

0

726

1.7

1,100

June

69

53

39

34

32

29

26

24

24

19

16

14

13

12

12

12

12

11

8.8

7.4

6.4

3.7

1.6

.9

.7

.2

.2

1.7

1.1

1.1

-

Minimum

0

0

0

0

July

1.3

.4

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

0

0

.1

0

0

0

0

0

.2

.3

.6

.4

0

0

.1

.2

.2

0

0

0

0

0

.2

.5

.7

.7

.3

0

0

.1

1.0

Mean

0

17.8

.44

48.2 .

Sept.

0.1

.1

.7

.6

1.3

1.7

1.4

.8

.1

0

0

0

0

.2

.7

1.2

1.7

1.6

1.0

0

0

0

0

0

0

0

0

0

0

0-

Runoff in 

acre-feet

0

12,900

26

34,970
298 MOKELUMNE RIVER BASIN

Cosumnes River at Michigan Bar, Calif.

Location.- Water-stage recorder, lat. 38°30 I 00", long. 121°02'45", In SE^ sec. 36, T. 8 

N., H. 8 E., at highway bridge at Michigan Bar, 5.5 miles southwest of Latrobe and 12 

miles downstream from confluence of North and Middle Forks. Altitude of gage, about 

190 feet (from topographic map).

Drainage area.- 537 square miles.

Records available.- October 1907 to September 1948.

Average discharge.- 41 years, 470 second-feet.

Extremes.- Maximum discharge during year, 6,240 second-feet Mar. 24 (gage height, 6.86 

feet); no flow Oct. 3, 4.

1907-48: Maximum discharge, 26,200 second-feet Mar. 31, 1940 (gage height, 11.66 

feet), from rating curve extended above 9,000 second-feet; no flow during parts of 

many years.

Flood in March 1907 reached a stage of 16.3 feet.

Remarks.- Records good. Diversions above station for irrigation.

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Aug. 13 to Sept. 30)

1.4

1.5

1.6

1.7

1.8

0.6

1.4

3.2

6.0

10

2.2

2.3

2.4 

2.7 126

2.9 

3.2 

3.5 

3.8 

4.1

176

272

395

590

840

4.5 

5.0 

5.5 

5.8

1,270

1,940

2,740

3,340

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

18

21

22

26

Oct.

1.3

1.3

1.1

.9

1.4

1.6

2.0

3.6

3.4

6.0

22

83

61

41

31

30

101

228

97

66

55

61

54

45

39

33

31

31

34

41

86

Nov.

90

120

122

86

75

73

72

61

55

52

48

46

45

43

45

54

83

72

61

54

51

a 48

45

a44

a44

46

45

45

43

43

-

Dec.

43

43

43

43

48

55

48

45

43

43

41

a41

a41

a41

41

42

50

68

80

64

58

56

55

52

50

48

48

48

46

47

46

Jan.

39

a45

a215

a330

a260

a240

a210

a310

360

265

219

185

166

145

133

122

116

107

97

92

86

84

83

81

80

75

72

61

55

66

66

Feb.

67

68

64

54

72

111

140

107

145

301

265

179

145

140

138

160

200

2O3

206

200

179

173

235

228

191

173

166

189

225

_

-

Month

December ...................................

Calendar year 1947 ......................

April ......................................

September ..................................

Water year I947r48 ......................

Mar.

179

173

163

158

145

143

138

136

166

179

158

148

171

458

598

431

617

494

821

620

419

345

414

3,140

1,970

1,090

813

690

605

590

562

Apr.

548

612

1,480

1,330

2,120

2,750

1,610

1,150

1,040

2,330

1,940

1,480

1,220

1,080

1,140

1,320

1,710

1,970

1,740

1,620

1,630

2,360

2,160

1,870

1,660

1,590

1,560

1,650

1,860

1,900

-

Secondfoot-days

1,517

65,521.3

4 723

157.3

135,615.7

May

1,630

1,420

1,310

1,260

1,330

~1,490

1,720

1,580

1,370

1,230

1,160

1,140

1,150

1,200

1,190

1,260

1,330

1,270

1,250

1,290

1,200

1,030

984

1,040

1,080

1,140

1, 180

1,070

951

930

1,010

Maximum

80

2,610

32

10

3,140

June

840

831

831

822

777

716

733

724

759

750

682

628

576

541

494

455

419

390

365

345

326

312

290

276

265

252

238

228

212

200

-

Minimum

41

0

39

3.9

.9

July

182

168

155

145

136

131

124

118

111

96

96

90

86

81

78

73

67

54

67

51

52

48

43

46

43

41

39

36

34

29

30

Aug.

32

29

27

24

22

24

25

22

19

18

14

8.4

9.6

13

12

11

13

13

12

9.2

9.2

9.6

10

9.6

9.2

9.6

10

12

11

8.8

7.6

Mean

48.9

180

1 232

5.24

371

Sept.

6.4

6.4

5.7

5.7

5.7

5.4

5.4

4.8

4.8

4.2

3.9

4.2

3.9

3.9

3.9

4.2

3.9

4.5

3.9

4.2

4.8

5.1

5.4

5.4

4.8

6.0

6.0

6.4

8.4

10

-

Runoff in 

acre feet

3,010

130,000

312

269,000

Peak discharge (base, 1,900 sec.-ft.).- Mar. 24 (6:30 p.m.) 6,240 sec.-ft.; Apr. 6 (2 a.m.) 

3,470 sec.-ft.; Apr. 10 (2 p.m.) 2,990 see.-ft.; Apr. 18 (8 a.m.) 2,100 see.-ft.; Apr. 22 (7 a.m.) 

2,690 sec.-ft.; Apr. 30 (4 a.m.) 2,120 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range in stage and records for

station at McConnell.
MOKELUMNE RIVER BASIN 299

Cosumnes River at McConnell, Calif.

Location.- Water-stage recorder, lat. 38°22i, long. 121°21', in Qmochumnes Grant at bridge 

on U. S. highway 99, 0.2 mile south of McConnel, 1 mile downstream from Deer Creek and 

7 miles north of Gait, Sacramento County. Altitude of gage, about 32 feet (from topographic map).

Drainage area.- 730 square miles.

Records available.- October 1943 to September 1948 in reports of Geological Survey. 1942- 

4« in reports of Division of Water Resources, Department of Public Works, State of 

California.

Extremes.- Maximum discharge during year, 3,560 second-feet Mar. 25 (gage height, 38.30 

reet); no flow Oct. 1-16, Aug. 12 to Sept. 30.

1943-48: Maximum discharge, 15,800 second-feet Feb. 3, 1945 (gage height, 43.20 

feet);'no flow during parts of each year.

1934-44: Maximum stage recorded, 45.94 feet Feb. 23, 24, 1936.

Remarks.- Records good. Diversions above station for irrigation.

Cooperation.- Twenty-five discharge measurements furnished by Bureau ofi Reclamation.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, In second-feet) 

(Shifting-control method used Mar. 14, 15, July 13-24)

Oct. 1 to Mar. 24 Mar. 25 to Sept. 30

29.8 0 30.5 17 32.4 308 30.5 0 31.4 58 34.0 775 

29.9 1.0 30.6 23 32.8 414 30.6 1.9 31.7 94 34.5 1,000 

30.0 2.0 30.8 37 33.2 541 30.7 4.8 32.0 143 35.0 1,250 

30.1 3.6 31.0 54 33.6 690 30.8 8.7 32.4 231 35.5 1,530 

30.2 5.8 31.3 90 34.0 866 30.9 15 32.8 337 36.0 1,840 

30.3 8.8 31.6 138 34.5 1,110 31.0 22 33.2 465 37.0 2,540 

30.4 12 32.0 217 35.0 1,400 31.2 38 33.6 615 38.0 3,300

Discharge, in aecond-feet, water year October 1947 to 'September 1948

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

f9 

89 

168 

80

52 

43 

45 

40 

36

29 

23 

18 

19 

19 

26

Nov.

75 

84 

114

101 

75

63 

63 

62 

51 

48

44 

41 

39 

34 

39

43 

45 

69 

58 

52

46 

40

41 

39

39

39 

39 

41 

38 

38

Dec.

38 

37 

37 

36 

34

38 

45 

43 

39 

37

36 

36 

36 

38 

35

34 

38 

44 

65 

73

57 

51 

49 

48 

39

40 

41 

43 

42 

41 

41

Jan.

41 

37 

40 

335

291

254 

209 

224 

375 

318

246 

204 

174 

154 

138

127 

114 

109 

98 

91

65 

80 

73

71 

69

22 

42 

55 

67 

54 

61

Feb.

32 

50 

52 

37 

38

54 

117 

122 

104 

194

318 

224 

166

142 

133

125 

151 

182 

182 

184

170 

156 

168 

232 

198

166 

152 

149 

174

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

mber. ...................... ..........'..

lendar year 1947

1. .....................................

st... :.................................

ember ..................................

ter year 1947-48 ......................

liar.

196 

162 

151 

143 

136

127 

112 

109 

118 

152

149 

138 

140 

228 

598

507 

475 

576 

569 

874

552 

411 

359 

1,380 

3,230

1,670 

960 

761 

663 

595 

571

Apr.

1 

1 

I

3 

2

1 

1 

1

2

1 

1 

I 

1

1

1 

2 

1

1

1 

2 

2 

2 

1

1 

1 

I 

I 

I

Secondfoot days

696 

1,600 

1,311

67,120.4

4,258 

4,172 

16,812 

50,568 

39,506 

16,125 

1,407.3 

85.9 

0

136,541.2

Peak discharge (base, 3,600 sec. -ft.).- No peak above

543 

555 

080 

420 

880

120 

380 

400 

100 

780

520 

800 

360 

180 

110

280 

510 110- 

900 

700

640' 

140 

410 

110 

790

640 

590 

650 

880 

990

Bay

1,800 

1,540 

1,380 

1,300 

1,330

1,460 

1,700 

1,720 

1,480 

1,310

1,200 

1,160 

1,160 

1,200 

1,22P

1,240 

1,320 

1,320 

1,300 

1,320

1,300 

1,100 

1,020 

1,040 

1,090

1,140 

1,200 

1,150 

1,020 

946 

1,040

Maximum

168 

114 

73

3,740

375 

318 

3,230 

3,120 

1,800 

923 

147 

14 

0

3,230

June

923 

851 

860 

851 

833

763 

767 

759 

755 

807

743 

683 

639 

587 

555

518 

476 

440 

414 

386

355 

326 

304 

279 

244

236 

229 

193 

186 

163

Minimum

0 

34 

34

0

22 

32 

109 

543 

946 

163 

8.3 

0 

0

0

July

147 

119 

61 

100 

115

97 

84 

76 

68 

67

64 

62 

36 

30 

27

8.3 

17 

18 

17 

19 .

16 

21 

19 

10 

15

18

17 

15

15 

15 

14

Aug.

14 

12 

9.3 8.7' 

10

6.8 

5.6 

6.4 

6.8 

5.2

1.1 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sept.

u Runoff in "ean acre-feet

22.5 1,380 

53.3 3,170 

42.3 2,600

184 133,100

137 8,450 

144 8,280 

542 33,350 

1,686 100,300 

1,274 78,360 

538 31,980 

45.4 2,790 

2.77 170 

0 0

373 270,800

base.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights
300 GOOSE LAKE BASIN

Drew Creek near Lakeview, Oreg.

Location.- Water-stage recorder, iat. 42°07', long. 120°35', in NW^ sec. 10 or SW^ sec. 3,

 T. 4U S. , R. 18 E., at highway bridge \\ miles downstream from Willow Creek, 2 miles 

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 1948 in

 reports or U. a. Geological Survey. January 1909 to September 1936 in reports of 

State engineer.

Average discharge.- 25 years (1909-30, 1937-38, 1939-41, 1946-47), 64.3 second-feet, ineluding diversion by North Drew Canal.

Extremes.- Maximum discharge during year, 132 second-feet Jan. 7 (gage height, 2.45 feet); 

minimum discharge, 0.4 second-foot sometime during Oct. 1-7.

1909-48; Maximum discharge, 3,000 second-feet Mar. 1, 2, 1910, from rating curve 

extended above 1,200 second-feet; no flow at times.

Remarks.- Recol-ds good April to September; fair October to March, except those for periods 

or ice effect or no gage-height record, which are poor. Considerable regulation caused 

by Drew Creek Reservoir, "2 miles above station. Since March 1914, North Drew Canal of 

Lakeview Water Users has diverted water around station.

Discharge, in second-feet, water year October 1947 to Septembe

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

' aO.5

h.5

 a. 6

.8

2.1

1.2

.8

.5

.8

1.2

1.0

1.0

.6

.8

.8

.8

.8

.8

.6

.8

Nov.

1.0

.2

.0

.4

.4

.4

.2

.2

.0

.0

1.0

.8

1.0

.8

1.0

1.0

1.0

1.0

1.0

.8

.8

1.0

1.4

1.7

1.4

.6

.6

.8

1.6

.6

Dec.

0.8

.6

1.0

.8

1.4

.6

.8

.8

*1.6

1.4

.4

.9

.5

.6

.2

.2

.8

.0

.7

.6

.4

.2

.2

1.2

1.2

1.4

1.4

1.6

1.6

1.7

1.9

Month

October. .................

December. ................

Calendar year 1947.....

January. .................

February. ................

March. ...................

April.. ...................

May. .....................

June .....................

July......... ............

August ...................

September. ...............

Water year 1947-48.....

Jan.

1.4

bl.5

1.6

3.5

2.5

30

62

13

b6. 2

b4.5

t>3.5

b3.2

b3.0

b3.0

b2.8

b2.5

b2.8

b2.8

b2.8

b2.8

b2.8

2.8

2.8

2.5

b2.5

b2.5

b2.3

b2.3

b2.3

b2.1

b2.1

Feb.

2.1

b2.1

b2.1

b2.5

b2.5

b2.5

b2.5

b3.0

b3.0

b3.0

b3.0

b3.0

b4.0

b5.0

6.5

5.9

5.3

8.8

b3.5

2.8

4.8

14

b4.5

4.0

4.5

5.0

4.0

4.0

3.8

-

Secondfoot-days

23.1

31.7

42.5

5,633.9

182.4

121.7

128.7

424.3

851

1,298

1,818

1,276

366.1

6,563.5

Mar.

3.8

3.0

2.8

2.8

2.5

2.5

2.5

2.5

2.5

2.5

2.3

2.5

2.8

2.8

2.5

2.5

2.8

2.8

2.8

2.3

3.2

4.8

4.5

4.2

3.5

4.2

10

14

12

8.0

6.8

Maximum

1.7

3.0

55

62

14

14

28

39

57

64

60

23

64

Apr.

7.7

7.4

6.2

5.3

5.3

6.5

8.8

7.1

15

15

12

13

11

16

18

16

18

15

16

17

17

18

18

17

16

16

17

18

23

28

-

Minimum

0.6

.6

-

1.4

2.1

2.3

5.3

20

35

46

13

2.3

-

Heart

0.75

1.06

1.37

15.4

5.88

4.20

4.15

14.1

27.5

43.3

58.6

41.2

12.2

17.9

May

20

20

22

22

22

23

22

22

21

22

22

22

21

22

23

24

26

27

30

30

39

35

34

35

35

35

34

34

35

36

36

June

36

36

35

36

36

36

36

36

36

36

36

36

36

36

36

39

49

53

53

52

50

49

49

49

51

53

54

57

53

48

L

Runoff in 

acre-feet

46

63

84

11,170

362

241

255

842

1,690

2,570

3,610

2,53.0

726

13,020

July

47

47

47

46

47

49

55

58

59

61

61

60

59

61

61

61

64

64

64

63

63

63

62

63

63

64

64

61

61

60

60

Aug.

60

59

58

58

58

58

58

57

57

57

55

53

51

46

39

36

52

38

38

36

36

32

30

29

28

23

24

23

18

13

16

North Drew

Canal 

(diversion in

acre-feet)

_

-

-

_

e35

237

1,490

3,630

3,090

1,050

9,530

Sept.

20

23

23

22

23

23

23

23

23

23

19

13

18

20

20

9.2

6.5

4.0

3.2

3.0

2.3

2.5

2.3

2.3

2.3

2.5

2.5

2.5

2.5

2.5

-

Drew Creek

Reservoir 

(contents in

acre-feet)t

16,000

16,200

19,900

-

22,000

24,600

27,300

40 , 8OO

53,900

58,070

51,900

4,0,700

36,200

-

* Wi.iter discharge measurement made on this day.

t Contents at end of month, interpolated from occasional staff gage readings.

a No gage-height record; discharge interpolated.

b Stage-discharge relation affected by ice.

e Apr. 29, 30 only, no canal record Oct. 1 to Apr. 28.

h Computed from staff-gage reading.
GOOSE LAKE BASIN

Cottonwood Creek near Lakeview, Oreg.

Location.- Water-stage recorder, lat. 42°14', long. 120°30', In SW£ sec. 29, T. 38 S., R.

19 K., 200 yards downstream from Cottonwood Reservoir and 10 miles northwest of Lake-'

view.

Drainage area.- 30 square miles. 

Records available.- November 1908 to September 1919 and October 1925 to September 1948 in

reports or Ueological Survey. November 1908 to September 1919 and October 1924 to

September 1936 in reports of State engineer.

Average discharge.- 27 years (1909-19, 1924-35, 1938-42, 1946-48), 19.4 second-feet, 

extremes.- Maximum discharge during year, 192 second-feet May 17, 18 (gage height 3 86

t'eetj; minimum, 0.4 second-foot between Oct. 31 and Nov. 12, Nov. 13, Dec. I. 

1908-19, 1924-48: 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 fair except those for periods of ice effect or no gage-height record,

which are poor. Since 1923 considerable regulation caused by Cottonwood Reservoir, 200

yards above station.

Rating tables, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Jan. 8 Jan. 10 to Sept. 30

1.3

1.4

1.5

1.6

1.7

1.9

2.0

2.1

2.2

2.3 

2.5

9.6

11.9

14.4

17.3

21

31

2.7 

2.9 

3.2 

3.4

46 1.3

1.4

1.5

1.6

1.7

1.4 

2.3 

3.4 

4.7 

6.2

1.9 9.7 3.0 

3.3 

3.6 

3.9

102

146

200

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.8

.8

.8

.8

.7

.7

.9

1.2

1.1

3.7

5.1

2.5

1.9

1.7

2.2

13

5.8

3.4

2.5

3.2

4.0

2.9

2.4

2.2

1.8

1.7

1.7

2.0

4.3

4.2

2.9

Nov.

> aS.O

2.6

1.7

3.3

a4.0

a4.5

a3.5

a2.5

 b2.0

3.2"

3.4

4.3

3.2

t.O

-

Dec.

3.9

b3.0

3.4

3.9

2.9

b2.5

b3.0

*b3.0

b2.5

b2.5

b3.0

2.5

b2.3

b2.5

2.7

2.3

2.6

2.5

2.5

2.4

2.6

2.5

2.6

2.5

2.7

b3.0

3.2

5.1

b2.5

b2.0

b2.0

Jan.

b2.0

b2.0

2.2

18

38

45

97

117

a60

*10

10

10

10

10

10

10

9.9

6.7

2.4

2.3

2.2

2.2

2.2

2.1

2.1

2.1

2.1

2.1

2.0

2.0

2.0

Feb.

2.0

40

 40

35

27

> b5.0

4.7

2.2

1.3

1.8

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.1

-

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 1947 ......................

January. ...................................

February ....................................

March. .....................................

April. .....................................

May........................................

June .......................................

July. .......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

.1

.0

.0

.9

.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.6

.6

.6

Apr.

J..5

1.5

1.4

1.4

1.5

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.4

1.4

1.4

1.5

1.5

1.5

1.5

1.6

l.S

3.7

11

11

7.9

5.6

5.8

6.2

6.2

-

Secondfoot-days

82.9

87.2

86.6

3,888.1

495.6

221.1

53.1

88.9

2,369.1

1,550

1,060

727

191.2

7,012.7

May

6.4

6.4

6.4

6.4

6.5

11

39

49

49

49

49

53

76

88

81

73

143

190

185

105

63

65

86

105

115

126

135

141

110

86

65

Maximum

13

5.1

59

117

40

2.1

11

190

107

69

35

17

190

June

66

67

68

71

107

107

46

55

71

74

64

30

30

43

45

45

43

42

41

41

37

26

32

32

32

32

37

50

52

64

Minimum

0.7

-

2.0

.4

2.0

1.3

1.6

1.3

6.4

26

27

12

2.0

0.7

July

69

64

54

51

45

36

35

30

28

28

28

28

27

27

30

30

30

30

30

30

30

30

30

.30

30

30

30

30

30

30

30

Aug.

30

35

34

34

28

25

25

24

24

24

25

28

28

28

27

26

26

25

25

25

21

18

18

18

17

17

16

16

15

12

13

Mean

2.67

2.91

2.79

10.7

16.0

7.62

1.71

2.96

76.4

51.7

34.2

23 . 5

6.37

19.2

Sept.

17

16

16

15

14

13

12

5.9

2.3

2.1

2.0

2.0

2.0

2.0

2.1

2.3

3.8

5.8

3.8

3.3

3.1

3.1

4.7

4.6

5.6

5.9

5.2

5.6

5.6

5.4

Rnnoff in 

ao re-feet

164

173

172

7,720

983

439

105

176

4,700

3,070

2,100

1,440

379

13,900

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of recorded range in stage, when available, 

and records for Drew Creek near Lakeview. 

b Stage-discharge relation affected by ice.
SACRAMENTO RIVER BASIN

SACRAMENTO RIVER MAIM STEM

Sacramento River at Delta, Calif.

Location.- Water-stage recorder, lat. 40°56'20", long. 122°24i55", in NWtr sec. 35, T. 36 

N., K. 5 W., 0.2 mile downstream'from Dog Creek and 0.6 mile southeast of Delta. Datum 

of gage is 1,075.00 feet above mean sea level (levels by Bureau of Reclamation).

Drainage area.- 427 square miles.

Records available.- December 1944 to September 1948.

Extremes.- Maximum discharge during year, 24,200 second-feet Jan. 7 (gage height, 15.16 

feet), from rating curve extended above 14,300 second-feet on basis of logarithmic 

plotting; minimum, 155 second-feet Oct. 1-6.

1944-48: Maximum discharge, that of Jan. 7, 1948; minimum, 148 second-feet Sept. 13, 

1945.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. Small diversions above station for irrigation.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Jan. 6 Jan. 7 to Sept. 30

5.6 

6.0 

6.5 

7.0 

7.5 

8.0 

9.0

1,020

1,510

1,750

2,300

2,920

3,620

5,340

10.0

11.0

12.0

13.0

14.0

7,470

9,950

12,800

15,800

19,600

4.0 

4.2 

4.6

196

252

398

5.0 

5.5 

6.0

590

900

1,260

6.5 1,700

7.0 2,270

7.5 2,920

Note.- Same as preceding table above 7.5 

feet.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

?.

3

4

5

6

7

R

9

10

11

12

13

14

15

16

17

1R

19

20

21

2?

23

24

25

2fi

2.7

2R

2.9

30

31

Oct.

alSS

a!55

a!55

a!55

a!55

a!55

alSO

267

400

684

479

304

257

238

801

3,470

998

618

484

497

497

418

382

351

336

322

308

346

1,400

985

707

Nov.

846

755

640

580

535

488

456

435

409

393

378

366

355

347

355

344

332

322

314

308

304

294

287

287

287

283

283

280

277

287

-

Dec.

314

290

290

290

280

274

270

274

267

a260

a260

a260

a260

a260

a260

a255

a270

a260

a255

a300

a600

a700

a560

a480

a430

a390

a370

a360

3350

332

325

Jan.

355

479

502

3,300

5,670

14,900

18,600

7,800

4,040

2,840

2,160

1,780

 1,520

1,340

1,200

1,110

1,030

963

900

848

809

770

740

716

692

650

620

602

584

574

557

FeV

546

530

515

525

520

495

476

525

535

510

476

462

467

462

500

500

510

568

579

540

525

620

596

552

535

525

520

574

535

-

-

Month

December. ...................................

Calendar year 1947 ......................

April. .....................................

Bay. .......................................

July. ......................................

September. .................................

Water year 1947-48 ......................

liar.

530

515

500

485

485

480

472

476

472

454

444

480

590

590

562

674

674

680

668

632

608

907

32,400

32,150

1,880

1,490

1,390

1,410

1,450

1,470

1,450

Apr.

1,460

1,880

2,160

2,270

2,190

1,920

1,690

1,660

2,540

2,840

2,310

2,030

1,910

5,030

7,060

6,360

5/240

4,070'

3,500

3,260

3,260

2,930

2,620

2,360

2,200

2,090

2,080

3,290

3,300

3,150

-

Secondfoot-days

10,346

232,057

15 223

7,117

388,362

Bay

3,110

2,970

2,950

2,97O

3,010

3,220

3,050

2,540

2,270

2,100

2,080

2,160

2,150

2,080

2,040

2,170

2,460

2,140

1,840

],650

1,610

1,650

1,820

2,080

2,300

2,370

2,320

1,900

1,680

1,620

\1,490

Maximum

700

6,610

390

18,600

June

1,470

1,590

1,770

2,480

2,460

'2,720

2,170

1,880

1,720

2,150

2,250

1,770

1,560

1,400

1,280

1,200

1,140

1,070

1,010

970

949

874

822

783

740

704

674

644

614

584

-

Minimum

255

155

199

155

July

574

562

579

552

614

632

557

515

495

476

458

444

432

415

398

390

386

370

366-

354

350

339

328

320

316

313

316

313

313

313

313

Aug.

328

313

299

292

285

282

275

272

268

265

262

259

255

252

249

249

246

246

259

252

246

246

265

255

249

240

235

232

229

229 '226

Mean

394

334

636

2 537

237

1,061

Sept.

223

220

218

215

218

215

212

212

210

207

204

204

204

201

199

207

262

390

313

265

252

252

275

265

255

252

246

243

240

238

-

Runoff in 

acre feet

20,520

460,300

14,120

770,300

Peak discharge (baae, 5,600 aec.-ft.).- Oct. 16 (4 a.m.] 6,110 sec.-ft.; Jan. 4 (4 p.m.) 4,780 sec 

..; Jsn. 7 (8:30 a.m.) 24,20O aec.-ft.; Apr. 14 (10:30 p.m.) 7,900 sec.-ft.; Apr. 28 (l p.m.) 4,140

a No gage-height record; discharge computed on basis of range in stage and records for Squaw Creek 

above Shasta Reservoir.
SACRAMENTO RIVER MAIN STEM 30J 

Shasta Reservoir near Redding ,_Calif.

Location.- Water-stage recorder, lat. 40°43', long. 122°25', in S| sec. 15, T. 33 N., R. 

5 W., at Shasta Dam on Sacramento River, 2 miles downstream from Squaw Creek and 9.5 

miles north of Redding. Datum of gage is at mean sea level (levels by Bureau of 

Reclamation).

Drainage area.- 6,665 square miles (excluding Goose Lake Basin). 

Records available.- November 1942 to September 1948.

Extremes.- Maximum contents during year, 3,746,000 acre-feet May 1 (elevation, 1,038.22 

 feet); minimum, 2,267,000 acre-feet Oct. 14 (elevation, 972.22 feet).

1942-48: Maximum contents, that of May 1, 1948; minimum, 1,960 acre-feet Dec. 21, 

1942 (elevation, 616.5 feet).

Remarks.- Reservoir is formed by concrete gravity-type dam not yey completed; regulation 

of discharge from reservoir began Dec. 30, 1943. Temporary usable capacity, 3,583,000 

acre-feet between elevations 737.75 feet (bottom of lowest set of river outlets) and 

1,036.42 feet (top of temporary wooden crest) above mean sea level. 115,700 acre-feet 

is not available for release. All water passes down Sacramento River, some first 

passing through power plant at dam. Records show total contents at 12 p.m.

Capacity was increased in April 1948 by installation of temporary wooden flashboards .

Cooperation.- Record of contents furnished by Bureau of Reclamation.

In thousands of acre-feet, water year October 1947 to September 1948

Day

1

2

3

4

S

S

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

2,289

2,287

2,283

2,278

2,272

2,270

2,270

2,269

2,271

2,277

2,275

2,271

2,270

2,267

2,270

2,288

2,291

2,290

2,287

2,287

2,286

2,285

2,284

2,283

2,280

2,276

2,275

2,275

2,285

2,289

2,290

Nor.

2,294

2,295

2,296

2,298

2,298

2,299

2,300

2,300

2,298

2,298

2,297

2,296

2,296

2,296

2,295

2,293

2,292

2,292

2,291

2,290

2,290

2,288

2,285

2,285

2,284

2,283

2,282

2,281

2,279

2,277

-

Dec.

2,278

2,278

2,278

2,278

2,2,78

2,277

2,275

2,276

2,276

2,276

2,276

2,276

2,274

2,272

2,272

2,272

2,272

2,273

2,273

2,273

2,275

2,277

2,279

2,280

2,279

2,280

2,281

2,280

2,280

2,281

2,282

Jan.

2,283

2,289

2,293

2,324

2,364

2,449

2,565

2,620

2,651

2,671

2,685

2,697

2,705

2,712

2,718

2,721

2~,723

2,723

2,725

2,730

2,734

2,738

2,742

2,745

2,745

2,748

2,750

2,752

2,754

2,756

2,757

Feb.

2,757

2,758

2,759

2,759

2,760

2,758

2,758

2,762

2,766

2,758

2,770

2,771

2,773

2,773

2,774

2,778

2,781

2,786

2,791

2,795

2,800

2,802

2,805

2,810

2,815

2,819

2,824

2,828

2,830

-

Bar.

2,834

2,838

2,841

2,845

2,848

2,848

2,847

2,850

2,853

2,854

2,857

2,862

2,866

2,869

2,874

2,883

2,892

2,900

2,909

2,915

2,921

2,934

2,982

3,023

3,052

3,072

3,089

3,106

3,121

3,140

3,156

Apr.

3,171

3,195

3,219

3,246

3,270

3,290

3,306

6,323

3,350

3,382

3,413

3,436

3,458

3,497

3,544

3,577

3,605

3,634

3,658

3,679

3,696

3,700

3,703

3,704

3,700

3,696

3,694

3,707

3,725

3,741

-

Hay

3,746

3,743

3,737

3,730

3,720

3,709

3,698

3,685

3,668

3,656

3,647

3,638

3,628

3,632

3,646

3,651

3,663

3,672

3,680

3,687

3,695

3,702

3,710

3,719

3,726

3,731

3,737

3,738

3,738

3,734

3,730

June

3,728

3,724

3,720

3,720

3,720

3,724

3,728

3,727

3,724

3,724

3,726

3,725

3,723

3,722

3,718

3,711

3,703

3,696

3,687

3,685

3,683

3,678 "

3,673

3,667

3,660

3,652

3,642

3,636

3,632

3,626

-

July

3,621

3,616

3,610

3,601

3,593

3,587

3,582

3,576

3,570

3,564

3,555

3,548

3,542

3,536

3,529

3,523

3,514

3,505

3,498

3,492

3,485

3,474

3,462

3,448

3,433

3,420

3,408

3,395

3,383

3,370

3,355

Aug.

3,340

3,327

3,314

3,301

3 , 288

3,274

3,259

3,242

3,229

3,216

3,204

3,191

3,177

3,164

3,148

3,134

3,121

3,108

3,094

3,081

3,066

3,051

3,039

3,026

3,013

3,OOO

2,987

2,972

2,957

2,944

2,930

Sept.

2,918

2,904

2,890

2,876

2,860

2,844

2,831

2,818

2,805

2,793

2,780

2,768

2,757

2,748

2,739

2,732

2,727

2,722

2,716

2,711

2,705

2,699

2,694

2,690

2,686

2,680

2,676

2,672

2,669

2,666

-

Monthly elevation and contents, water year October 1947 to September 1948

Date

Calendar year 1947 .....

Sept. 30. .................

_Water year 1947-48.....

Elevation 

(feet)

-

992.36

-

Contents 

(acre-feet)

-

2,666,000

-

Change In contents 

during month 

(acre-feet)

+71,000

-264,000

+374,000
304 SACRAMENTO RIVER MAIM STEM

Sacramento River at Keswick, Calif.

Location.- Water-stage recorder, lat. 40°36', long. 122°27', in W| sec. 28, T. 32 N., 

K. b W., 0.6 mile downstream from Keswick Dam, 0.6 mile upstream from Middle Creek, 

1.5 miles downstream from Keswink, and 10 miles downstream from Shasta Dam. Datum 

of gage Is 479.81 feet aliove mean sea level, datum of 1929.

Extremes.- Maximum discharge during year, SI.900 second-feet Apr. 30 (gage height, 19.17 

feet); minimum, 154 second-feet May 15 (gage height, 2.00 feet).

1938-48: Maximum discharge, 186,000 second-feet Feb. 28, 1940 (gage height, 47.2 

feet, site and datum then in use), from rating curve extended above 75,000 second-feet 

on basis of peak discharge at Kennett plus 4,000 second-feet estimated inflow; minimum, 

that of May 15, 1948.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4,730

4,700

4,700

4,720

4,720

4,710

4,730

4,700

4,900

5,000

4,790

4,770

4,760

4,740

4,820

5,370

4,810

4,770

4,740

4,770

4,770

4,730

4,720

4,700

4,680

4,680

4,660

4,710

5,230

e4,800

4,700

Nov.

4,410

4,220

4,210

4,190

4,170

4,160

4,160

4,130

4,120

4,110

4,120

4,110

4,110

4,120

4,120

4,120

4,120

4,110

4,130

4,130

4,110

4,120

4,130

4,140

4,130

4,150

4,140

4,150

4,150

. 4,150

Dec.

3,860

3,720

3,710

3,730

3,730

3,730

3,730

e3,750

e3,750

3,760

3,750

3,730

3,760

3,510

3,760

3,820

3,850

3,840

3,930

3,860

3,840

3,940

3,800

3 , 73u

3^760

3,730

3,750

3,750

3,780

3,760

3,740

Jan.

3,760

4,160

3,870

4,090

4,390

5,890

6,330

4,550

4,230

5,690

5,460

5,380

5,360

5,250

5,250

5,250

5,080

4,910

5,020

4,290

3,840

3,820

3,690

3,570

3,520

3,940

4,000

4,210

4,120

4,030

3,610

Feb.

3,680

4,150

4,380

5,300

4,420

4,760

3,660

2,920

3,410

4,070

4,150

3,970

3,680

3,750

3,340

3,350

2,880

3,010

3,040

3,060

3,000

2,980

2,980

3,000

3,000

2,960

2,920

2,860

2,880

_

-

Month

October. ...................................

November. ........................ .........

December. ...................................

Calendar yearl947 ......................

January ....................................

February. ..................................

March ......................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

2,940

2,960

2,960

2,960

3,700

3,630

3,630

3,630

3,720

3,610

3,650

3,710

3,780

3,700

3,680

3,910

3,500

3,400

3,360

3,390

2,760

4,250

4,420

4,160

3,840

3,610

3,660

2,690

4,580

3,620

3,450

Apr.

3,450

3,890

4,060

3,970

4,250

5,740

5,670

5,900

6,060

6,050

3,300

5,530

5,630

6,060

7,950

11,400

13,600

7,980

7,880

7,850

10,300

16,900

16,800

16,800

16,700

16,700

16,800

17,100

17,500

19,400

Secondfoot days

148,330

124,440

116,860

1,879,940

140,560

101,560

110,860

291,220

415,320

309,080

264,370

315,330

234,790

2,572,720

May

21,700

21,600

21,400

21,400

21,400

21,300

21,200

21,200

21,200

19,200

16,500

16,500

16,500

11,100

2,850

7,640

7,650

7,700

7,650

7,650

7,650

7,650

7,650

7,650

8,450

9,240

9,390

10 , 300

11,300

11,300

11,400

Maximum

5,370

4,410

3,940

7,510

6,330

5,300

4,580

19,400

21,700

11,500

10,200

10,300

10,200

21,700

June

11,400

11,400

11,400

11,400

11,200

11,400

11,400

11,400

11,500

11,400

10,200

10,200

10,000

10,300

10,800

11,500

11,500

11,400

11,400

8,080

8,310

9,520

9,520

9,500

9,500

9,490

9,500

8,660

7,910

7,890

-

Minimum

4,660

4,110

3,510

2,790

3,520

2,860

2,690

3,300

2,850

7,890

7,510

9,530

5,280

2,690

July

7,920

7,890

7,910

7,910

7,890

7,890

7,810

7,730

7 , 700

7^50

7,660

7,690

7,730

7,710

7,740

7,750

7,740

7,510

7,800

7,820

7,910

9,310

10,200

10,100

10,200

10,200

10,200

10,200

10,200

10,200

10,200

Aug.

10,20O

10,200

10,300

10,200

10,200

10,200

10,200

10,200

10,200

10,200

10,200

10,200

10,200

10,100

10,100

10,200

10,200

10,200

10,200

10,200

10,200

10,100

9,530

10,200

10,200

10,200

10,200

10,200

10,200

10,200

10,200

Mean

4,785

4,148

3,770

5,151

4,534

3,502

3,576

9,707

13,400

10,300

8,528

10,170

7,826

7,029

Sept.

10,200

10,200

10,200

10,100

10,200

10,100

10,100

10,, 000

9,810

9,570

9,350

8,220

8,510

7,690

7,560

7,560

7,430

6,830

6,670

6,500

6,290

6,320

6,130

5,940

5,840

5,640

5,560

5,400

5,280

5,590

Runoff in 

acre-feet

294,200

246,800

231,800

3,729,000

278,800

201,400

219,900

577,600

823,800

613,100

524,400

625,400

465,700

5,103,000

e Stage-discharge relation indefinite; -discharge Interpolated.
SACRAMENTO RIVER MAIN STEM 305

Sacramento River near Red Bluff, Calif.

Location.- Water-stage recorder, lat. 40°13'55", long. 122°10 I 50", in SE£ sec. 24, T. 28 

N., K. 3 W., at lower end of Iron Canyon, 0.5 mile downstream from Sevenmlle Creek and 

4 miles northeast of Red Bluff. Datum of gage is 252.6 feet above mean sea level '(from 

river-profile survey).

Drainage area.- 9,300 square miles, excluding Goose Lake Basin.

Records available.- January 1902 to September 1948. April 1895 to June 1902 at site at 

Jellys ferry, 12 miles upstream from Red 'Bluff.

Average 'discharge.- 53 years, 11,150 second-feet.

^Extremes.- Maximum discharge during year, 65,900 second-feet Mar. 23 (gage height, 15.50 

reet); minimum, 3,040 second-feet Mar. 22 (gage height, 0.28 foot).

1895-1948: Maximum discharge, 291,000 second-feet Feb. 28, 1940 (gage height, 38.9 

feet), from rating curve extended above 200,000 second-feet by logarithmic plotting and 

on basis of velocity-area studies; minimum, 2,000 second-feet Mar. 29, 1944 (gage 

height, -0.45 foot).

Remarks.- Records excellent except those for Jan. 13 to Feb. 5, which are good. Flow, 

regulated by Shasta Reservoir since Dec. 30, 1943 (see p. 303), Many diversions above 

station for irrigation.

Rating table, water year 1947-48 (gage height, In feet 

and discharge, in second-feet)

1.2 

1.6 

2.0

3,550

3,900

4,660

5,520

6,470

2.5 

3.0 

4.0 

5.0

6.0

7,78O

9,150

12,100

15,300

18,700

7.0

8.0

9.0

10.5

22,400

26,500

31,000

38,300

Discharge, in second-feet, water year October 1947 to. September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4,850

4,720

4,720

4,740

4,740

4,740

4,830

5,150

5,150

5,820

6,050

5,430

5,230

5,170

5,190

7,120

8,050

5,980

5,540

5,430

5,890

5,590

5,370

5,320

5,260

5,210

5,210

5,260

7,430

10,100

6,850

Nov.

9,930

8,200

5,930

,540

,500

,280

,170

,040

,950

,890

,870

,850

,830

,850

,890

,870

,870

,830

,790

,76O

,760

,740

,740

,740

,760

,76O

,740

,740

,740

,720

-

Dec.

,500

,330

,330

,330

,360

,350

,330

,350

,350

,330

,310

,290

,290

,290

,100

,330

,580

,640

,540

,91d

,120

,470

,390

,870

,660

,620

,560

,540

,480

,480

,460

Jan.

4,500

13,300

12,200

1O.3OO

21,100

15,400

23,300

23,700

12,200

10,6OO

9,460

8,590

8,050

7,590

7,320

7,060

6,720

6,500

6,370

6,050

5,280

5,120

4,950

4,830

4,700

4,72\3

4,910

5,020

5,150

5,080

4,890

Feb.

4,400

4,680

5,120

5,960'

5,480

5,590

5,450

4,160

4,810

5,300

5,280

4,930

4,810

4,700

4-, 620

4,620

4,400

4,190

4,210

4,160

4,140

4,010

4,160

4,010

3,990

3,940

3,860

3,900

3,900

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1947 ......................

January. ...................................

February. ..................................

March. .....................................

April. .....................................

Hay

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1947 -48 ......................

Note . - No gage-height record ~Jan. ~13 to Fe

liar.

3,810

3,830

3,77O

3,740

4,030

4,360

4,380

4,400

4,500

4,440

4,360

4,400

4,720

7,O3o

5,750

6,250

10,300

6,620

9,160

6,270

5,100

5,040

35,300

29,800

'16,100

10,500

8,430

7,940

6,790

7,720

6,710

Apr.

6,350

6.3OO

9,620

11,500

11,300

11,400

11,300

11,800

18,000

20,400

17,400

10,800

11,000'

22,400

26,800

21,600

24,700

17-, 900

14,700

13,800

13,500

25,900

25,900

22,800

21,800

21,300

21,500

32,400

38,100

36,8OO

-

Secondfoot-days

176,140

156,280

141,490

2,299,720

274,960 

132,780

245,550

559,070

552 , 830

387 ,870

275,390

323,400 

247,500

3,473,260

May

32,700

29,600

28,200

27,600

27,000

26,600

26,400

25,900

25,400

24,900

20,500

20,000

20,OOO

18,300

8,080

8,850

11,400

12,OOO

11,500

11,200

11,300

11,100

10,400

10,400

10,800

11,600

12,200

13,300

14,400

15,8OO

15,400

Maximum

10,100

9, 930

6,470

31,200

23,700 

5,960

35,300 

38,1OO

32,700

17,200

10,500

10,600 

10,500

38,100

June

14,900

14,600

14,800

14,900

17,200

17,200

15,600

15,000

14,900

14,900

14,600

13,700

13,000

12,700

13,000

13,700

13,600

13,500

13,300

11,500

9,210

10,700

10,800

10,800

10,700

10,700

10,600

10,300

8,760

8,700

Minimum

4,720

4.7EO

4,100

3,950

4,500

3,860

3,740 

6,300

8 ,080

8,700

7,780

1O,30O 

5,520

3,740

July

8,670

8,590

8,590

8,560

8,590

8,650

8,590

8,350

8,270

8,160

8,050

8,020

8,020

,940

,920

,970

,970

,780

,890

,940

7,970

8,400

10,500

10,500

1O.5OO

10,500

10,500

10,500

10,500

10,500

10,500

Aug.

10,500

10,500

10,500

10,500

10,400

10,400

1O.40O

10,400

10,400

10,400

10,400

10,400

10,400

1O,30O

10,300

10,300

10,400

10,300

10,400

10,400

10,400

10,400

10,600

10,300

10,6OO

10,500

10,600

10,500

10,500

10,500

10,500

Mean

4, 682

5,209 

4,564

6,301

8,87O 

4 57 9

7^921

18,640

17 930 

12! 930

10^430

8,250

9,490

Sept.

10,400

10,400

10,500

10,400

10,500

10,400

10,4OO

10,300

10,100

9,890

9,690

8,810

8,590

8,480

7,510

7,860

7,860

7,810

7,320

7,240

6,980

6,930

6,770

6,620

6,420

6,220

6,080

5,840

5,660

5,520

Runoff in 

acre feet

349,400

310,000 

280,600

4,562,000

545,400

263,400

487,000

1,109,000

1,097,000

769, 30O

546 2OO 

641^500

49O.9OO

6,890,000

b. 5; discharge computed on basis of unpublished

record at Table Mountain dam site.
306 SACRAMENTO RIVER MAIN STEM

Sacramento River at Butte City, Calif.

Location.- Water-stage recorder, lat. 39 0 27'35", long. 121°59'35", in ME$ sec. 32, T. 19 

N., K. 1 W., 0.5 mile south of Butte City. Zero of gage is set to datum of Corps of 

Engineers.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 194a in reports of Geological Survey. 1939-48 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 68,000 second-feet Mar. 24 (gage height, 86.44 

feet); minimum, 3,720 second-feet Mar. 5 (gage height, 69.44 feet).

1940-48: Maximum discharge, 170,000 second-feet Feb. 7, 1942 (gage height, 96.87 

feet), from rating curve extended above 100,000 second-feet.

1921-48: Minimum discharge recorded. 1,050 second-feet July 15, 25, 26, 1931 

(gage height, 67.49 feet).

Remarks.- Records good. Flow regulated by reservoirs, and bypassing for flood control. 

Many diversions above station for irrigation.

Cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California. Sixteen discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

a4,440

4,390

4,140

4,290

4,300

4,340

4,410

4,560

4,890

5,340

5,990

6,370

5,950

5,670

5,590

5,690

8,310

8,220

6,370

6,020

5,910

6,410

6,170

5,910

5,800

5,650

5,630

5,880

6,150

8,670

10,600

Nov.

8,360

15,700

10,900

7,930

7,060

6,810

6,460

6,240

6,020

5,910

5,780

5,710

5,710

5,690

5,690

5,690

5,690

5,610

5,550

5,550

5,520

5,500

5,480

5,480

5,500

5,500

5,500

5,480

5,480

5,460

-

Dec.

5,400

5,290

5,170

5,150

5,130

5,110

5,110

5,090

5,090

5,090

5,070

5,030

4,990

4,970

4,950

4,810

5,030

5,270

5,360

5,320

5,690

5,970

6,930

6,210

5,710

5,480

5,360

5,290

5,250

5,210

5,190

Jan.

5,130

5,440

14,100

13,400

13,900

21,700

20,700

31,300

27,800

16,700

14,000

12,200

11,000

10,200

9,560

9,100

8,790

8,360

8,100

7,810

7,480

6,790

6,520

6,300

6,100

5,820

5,820

5,930

5,970

6,080

6,020

Feb.

5,840

5,340

5,590

5,910

6,630

6,520

6,540

6,390

5,360

5,690

6,190

6,100

5,910

5,740

5,596

5,500

5,590

5,480

5,250

5,230

5,170

5,130

5,030

5,150

5,030

4,950

4,890

4,830

4,790

-

Month

December. ..................................

Calendar year 1947 ......................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

4,790

4,640

3,970

3,900

3,970

3,820

4,160

4,210

4,210

4,230

4,270

4,120

4,200

4,560

6,280

6,540

7,860

11,200

8,290

9,540

7,430

6,170

7,160

49,000

46,200

22,100

15,300

12,500

11,200

10,400

10,600

Apr.

9 , 54C

9,200

10,000

12,800

15,700

14,700

14,100

13,800

19,600

23,700

23,900

21,200

15,600

15,100

41,500

57 , 500

35,100

34,100

24,700

20,600

19,500

20,400

31,800

30,900

27,700

26,300

25,500

25,600

41,700

55,300

-

Secondfoot days

164,720

2,356,260

224,620

3,891,240

May

49,800

40,800

35,800

33,500

32,300

31,600

31,000

30,300

29,000

28,100

26,600

23,000

22,200

21,600

19,400

12,200

12,100

14,700

15,200

14,100

13,600

13,200

12,200

11,500

11,400

11,600

12,700

13,200

13,900

15,200

16,400

Maximum

15,700

6,930

47,200

6,630

8,940

57 , 500

June

16,300

15,600

15,300

16,000

17,900

20,400

19,200

17,600

16,600

16,300

16,200

15,500

14,600

14,000

13,500

13,300

13,600

13,400

13,200

13,100

11,400

9,660

10,300

10,200

10,000

9,950

9,820

9,780

9,390

8,240

-

Minimum

4,140

5,460

4,810

4,140

4,790

9,200

6,430

5,550

3,820

July

8,020

7,880

7,690

7,690

7,620

7,570

7,500

7,520

7,300

7,230

7,110

6,970

6,880

6,790

6,700

6,590

6,590

6,610

6,460

6,430

6,460

6,480

6,810

8,360

8,670

8,790

8,820

8,770

8,820

8,790

8,770

Aug.

8,840

8,860

8,820

8,860

8,820

8,820

8,790

8,770

8,770

8,790

8,720

8,670

8,670

8,650

8,650

8,650

8,700

8,720

8,700

8,740

8,740

8,740

8,820

8,860

8,740

8,890

8,910

8,860

8,840

8,860

8,940

Mean

5,873

6,432

5,314

6,456

5,564

9,897

24,570

21,550

13,680

7,506

8,781

7,487

10,630

Sept.

8,940

8,890

8,860

8,860

8,840

8,860

8,840

8,790

8,670

8,620

8,500

8,310

7,640

7,390

7,320

6,790

7,000

7,110

7,110

6,810

6,700

6,680

6,570

6,430

6,320

6,240

6,100

6,020

5,860

5,550

-

Runoff in 

acre-feet

361,100

382,700

326,700

4,674,000

320,100

608,600

1,462,000

1,325,000

813,900

461,500

539,900

445,500

7,718,000

a No gage-height record; discharge computed on basis of records at Colusa.
SACRAMENTO RIVER MAIN STEM 307

Sacramento River at Colusa, Calif.

Location.- Water-stage recorder, lat. 39°12'50", long. 121°59'55", at north end of Jimeno 

Grant, just downstream from highway bridge at Colusa, Colusa County. Zero of gage is 

set to datum of Corps of Engineers.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 1948 in reports of Geological Survey. 1939-48 in reports of Division of 

Water Resources, Department of.Public Works, State of California.

Extremes.- Maximum discharge during year, 35,800 second-feet Mar. 25; maximum gage height ; 

63.42 feet May 1; minimum discharge, 4,070 second-feet Mar. 6 (gage height, 38.53 feet).

1940-48: Maximum discharge, 49,000 second-feet Feb. 8, 1942 (gage height, 69.20 

feet).

1921-48: Minimum discharge recorded, 820 second-feet July 25, 26, 1931 (gage height, 

34.79 feet).

Remarks.- Records good. Flow regulated by reservoirs and bypassing for flood contnol. 

Many diversions above station for irrigation.

Cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California. Twenty discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year Octoberl947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4,470

4,490

4,420

4,450

4,510

4,450

4,480

4,560

4,800

5,080

5,560

6,090

5,920

5,610

5,430

5,440

6,550

8,630

7,020

6,290

6,060

6,370

6,430

6,1 7 0

6,030

5,910

5,820

5,940

6,150

7,010

10,300

Nov.

9,320

11,300

13,900

9,470

7,650

7,040

6,650

6,330

6,210

6,020

5,900

5,820

5,730

5,690

5,690

5,670

5,670

5,640

5,610

5,540

5,520

5,520

5,480

5,480

5,490

5,520

5,540

5,550

5,560

5,560

-

Dec.

5,570

5,520

5,380

5,310

5,300

5,270

5,250

5,240

5,200

5,240

5,220

5,170

5,140

5,130

5,120

4,990

5,130

5,310

5,440

5,440

5,550

5,900

6,540

6,560

5,970

5,660

5,550

5,480

5,440

5,410

5,370

Jan.

5,300

5,340

8,960

14,700

11,800

19,100

19,400

23,700

28,100

21,700

15,800

13,300

11,500

10,400

9,670

9,120

8,710

8,340

8,070

7,800

7,680

7,130

6,740

6,530

6,350

6,110

5,930

6,050

6,030

6,100

6,040

Feb.

' 5,990

5,710

5,610

5,790

6,100

6,600

6,340

6,420

5,830

5,410

6,000

6,070

5,930

5,750

5,550

5,560

5,530

5,660

5,390

5,360

5", 3 40

5,280

5,240

5,280

5,280

5,210

5,130

5,080

5,030

_

-

Month

December ...................................

Calendar year 1947 ......................

April ......................................

May. .......................................

July. ......................................

September ..................................

Water year 1947-48 ......................

Mar.

5,010

4,980

.4,510

4,220

4,270

4,140

4,420

4,570

4,540

4,560

4,610

4,490

4,480

4,690

5,590

6,740

6,780

10,500

9,170

9,160

8,300

7,000

6,32C

22,100

35,000

29,400

20,900

16,100

13,600

11,700

H-,800

Apr.

10,800

10,100

9,970

12,000

13,900

15,600

14,400

13,900

15,000

21,900

23,600

22,300

17,600

15,100

20,400

30,800

29,700

28,700

26,300

21,800

19,400

18,400

23,000'

28,100

26,800

25,100

24,100

23,600

26,600

32,700

-

Secondfoct-days

168,800

2,332,810

218,400

3,665,700

May

33,900

31,500

30,300

29,500

29,100

28,700

28,500

28,200

27,500

26,500

25,600

23,500

21,500

20,700

19,900

15,600

11,100

12,500

13,300

13,000

12,800

12,600

12,300

11,800

11,600

11,700

12,100

12,500

13,100

14,000

15,300

Maximum

6,560

30,500

8,350

35,000

June

15,800

15,500

15,000

15,200

16,200

18,900

19,900

18,700

17,300

16,300

15,900

15,600

14,700

14,000

13,300

12,900

12,900

12,900

12,800

12,600

12,200

10,200

9,950

10,100

9,910

9,780

9,650

9,580

9,380

8,490

-

Minimum

4,99C

4.12C

nqp

5,860

4,140

July

8,010

7,760

7,620

7,510

7,440

7,340

7,270

7,250

7,100

6,980

6,930

6,760

6,680

6,590

6,530

6,400

6,330

6,340

6,250

6,090

6,160

6,190

6,240

7,240

7,850

7,970

8,060

8,050

8,040

8,060

8,080

Aug.

8,200

8,190

8,160

8,140

8,170

8;170

8,190

8,180

3,150

8,220

8,220

8,210

8,270

8,230

8,190

8,220

8,220

8,310

8,280

8,270

8,210

8,230

8,290

8,490

8,150

8,350

8,350

8,380

8,350

8,310

8,380

Mean

5,445

6,391

7,280

10,020

Sept.

8,350

8,310

8,260

8,240

8,230

8,250

8,290

8,220

8,160

8,090

8,050

7,930

7,710

7,140

7,250

6,760

6,700

6,840

7,040

6,850

6,700

6,650

6,600

6,550

6,440

6,400

6,250

6,160

6,120

5,860

-

Runoff in 

acre feet

334,800

4,627,000

433,200

7,270,000
308 SACRAMENTO RIVER MAIN STEM

Sacramento River below Wilkins Slough, Calif.

Location.- Water-stage recorder, lat. 39°00'35", long. 121°49'25", in Jimeno Grant, 1,500 

feet downstream from Wilkins Slough, Colusa County, and & miles southeast of Grimes. 

Zero of gage is set to datum of Corps of Engineers.

Records available.- August 1931 to October 1939 (low-water periods only) and June 1940 to 

September 194b in reports of Geological Survey. 1939-48 in reports of Division of WateResources, Department of Public Works, State of California.

Extremes . - Maximum discharge during year, 23,800 second-feet Mar. 25; maximum gage height, 

feet, May 1; minimum discharge, 3,750 second-feet Mar. 6 (gage height, 24.50 feet). 

1940-48: Maximum discharge, 26,600 second-feet Feb. 8, 1942 (gage height, 52.29

feet).

1931-48: 

14.20 feet).

Minimum discharge recorded, 100 second-feet Aug. 1, 1931 (gage height,

Remarks. - Records good. Plow regulated by reservoirs and bypassing for flood control. 

Many diversions above station for irrigation.

Cooperation. - Records collected and prepared in cooperation with Division of Water resources, Department of Public Works, State of California. Fourteen discharge measurements furnished by Bureau of Reclamation.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

y

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4,820

4,800

4,770

4,70O

4,760

4,750

4,690

4,770

4,920

5,320

5,730

6,290

6,480

6,180

5,860

5,690

5,980

8,000

7,900

6,730

6,170

6,110

6,400

6,240

6,040

5,900

5,770

5,760

6,020

6,320

8,600

Nov.

9,680

9,480

13,100

11,100

8,860

7,860

7,420

7,060

6,860

6,640

6,4-70

6,370

6,260

6,180

6,140

6,130

6,080

6,070

6,020

5,970

5,950

5,920

5,870

5,820

5,800

5,780

5,800

5,800

5,780

5,770

Dec.

5,750

5,710

5,550

5,420

5,380

5,350

5,320

5,290

5,190

5,210

5,230

5,200

5,170

5,140

5,130

5,070

5,090

5,280

5,470

5,520

5,550

5,870

6,280

6,760

6,280

5, -860

5,630

5,540

5,540

5,660

5,610

Jan.

5,450

5,380

6,480

12,600

12,100

14,900

18,200

20,100

22,200

21,200

18,500

15,700

13,700

12,400

11,400

10,600

10,000

9,550

9,080

8,720

8,410

8,020

7,500

7,220

7,000

6,740

6,500

6,530

6,560

6,600

6,620

Feb.

6,530

6,330

6,020

5,990

6,320

6,930

6,920

6,920

6,650

6,030

6,280

6,580

6,520

6,340

6,140

6,020

5,980

6,070

5,890

5,720

5,620

5,590

5,530

5,450

5,390

5,280

5,220

.5,140

5,000

-

Month

December ...................................

Calendar year 1947 ......................

March. .....................................

Hay. .......................................

September . .................................

Hater year 1947-48 ......................

Mar.

4,990

4,830

4,680

4,140

4,000

3,890

3,890

4,100

4,440

4,170

4,080

4,110

4,210

4,470

5,120

6,740

7,040

8,820

10,100

9,080

9,190

7,920

6,870

12,600

23,600

23,300

21,300

18,100

15,300

13,400

12,700

Apr.

12,200

11,300

10,800

11,500

13,300

14,900

14,500

14,300

14,300

18,200

20,300

20,200

18,900

16,700

17,200

21,300

21,300

21,200

20/900

20,000

19,300

18,900

20,000

21,500

21,600

21,500

21,400

21,200

21,600

22 , 500

Secondfoot-days

171,050

2,230,790

542 800

512*900

221,530

3,407,170

Hay

22,600

22,400

22,20O

22,100

21,900

21,800

21,700

21,700

21,500

21,300

21 , 000

20,500

19,800

19,300

18,700

16,100

12,000

11,900

12,700

12,800

12,600

12,200

11,900

11,300

11,000

10,800

10,900

11,100

11,500

12,200

13,400

Maximum

6,760

22,300

22 500

7,900

23,600

June

14,300

14,400

14,000

13,900

14,500

16,200

17,700

17,400

16,500

15,500

15,000

14,600

14,000

13,300

13,600

12,100

11,900

12,000

11,900

11,800

11 , 500

lCk,300

9,230

9,200

9,080

8,930'

8,790

8,650

8,580

8,050

Minimum

5,07C

3,42C

6,76C

3,89C

July

7,190

6,760

6,500

6,400

6,380

6,280

6,370

6,300

6,300

6,140

6,080

5,910

5,830

5,770

5,700

5,510

5,380

5,360

5,300

5,050

5,030

4,960

4,990

5,480

6,620

6,910

6,980

6,980

6,920

6,910

6,830

Aug.

6,890

6,980

6,980

6,920

6,920

,940

,030

,040

,000

,990

,010

,96O

,020

,050

,040

,010

.990

,090

,190

,160

,180

,200

,260

,430

,350

,380

,480

,540

- ,600

,580

,600

Mean

5,518

6,112

7,384

9,309

Sept.

7,670

7,700

7,660

7,640

7,650

7,720

7,850

7,880

7,840

7,880

7,900

7,860

7,760

7,260

7,210

7,100

6,890

6,970

7,260

7,340

7,180

7,160

7,160

7,180

7,140

7,070

7,040

6,940

6,860

6,760

Runoff in 

acre- feet

339,300

4,425,000

345 900

439,400

6,758,000
SACRAMENTO RIVER MAIN'STEM 309

Sacramento River at Knights Landing, Calif.

Location.- Water-stage recorder, lat. 38°48'10", long. 121°42'55", in NE£ sec. 14, T. 11 

M., K. 2 E., Just upstream from Southern Pacific Railroad bridge at Knights Landing. 

Zero of gage is set to datum of Corps of Engineers. Auxiliary gage is water-stage recorder at upstream end of Fremont weir.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to 

September I94b in reports of Geological Survey. -1939-48 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 23,300 second-feet Mar. 26; maximum gage height, 

3b.73 feet Apr. 19; minimum discharge, 3,780 second-feet Mar. 7 (gage height, 15.14 

feet).

1940-48: Maximum discharge, 27,900 second-feet Feb. 9, 1942; maximum gage height, 

41.83 feet Feb. 8, 1942.

1921-48: Miriinum discharge recorded, 250 second-feet July 23, 1931 (gage height, 

7.80 feet).

Remarks.- Records good. Flow regulated by reservoirs and bypassing for flood control.

Many diversions above station for irrigation; considerable return water from irrigation. 

Discharge computed by using fall as a factor.

Cooperation.- Records collected and prepared in cooperation with Division of Water resources, Department of Public Works, State of California. Fifteen discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5,390

5,280

5,300

5,240

5,270

5,310

5,300

5,250

5,390

5,710

6,180

6,640

6,910

6,620

6,230

6,020

5,760

7,080

8,170

7,160

6,410

6,200

6,410

6,450

6,270

6,100

6,060

5,960

6,070

6,280

7,630

Nov.

9,660

9,120

11,800

11,900

9,690

8,370

7,580

7,210

7,010

6,810

6,600

6,570

6,420

6,350

6,370

6,290

6,230

6,280

6,170

6,120

6,120

6,080

6,040

6,020

6,010

5,930

5,900

5,920

5,930

5,880

-

Dec.

5,940

5,930

5,780

5,620

5,580

5,510

5,470

5,510

5,350

5,340

5,330

5,310

5,260

5,230

5,270

5,260

5,110

5,270

5,460

5,540

5,470

5,800

6,060

6,640

6,410

6,020

5,850

5,640

5,690

5,730

5,620

Jan.

5,540

5,470

5,370

10,700

12,200

13,100

17,800

19,600

21,800

21,100

18,900

15,700

13,600

12,100

11,500

10,800

10,300

10,000

9,470

9,150

8,790

8,440

7,890

7,570

7,360

7,100

6,840

6,740

6,830

6,790

6,800

Feb.

6,860

6,580

6, 1OO

5,930

-6,130

6.780

6,900

6,980

6,800

6,090

6,170

6,620

6,630

6,470

6,310

6,170

6,110

6,160

6,070

5,880

5,810

5,900

5,780

5,630

5,570

5,440

5,390

5,310

5,190

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. ............................ .....

April ......................................

May. .......................................

June .......................................

July...... .................................

August .....................................

September. ............................... .

Water year 1947-48 ......................

Mar.

5,090

,950

,820

,320

,060

,940

,780

,980

,480

,390

,210

,230

,370

,720

,930

,590

,210

8,450

10,400

9,300

9,490

8,370

7,400

9,730

21,800

22,800

21,100V

17,700

14,800

13,100

12,400

Apr.

12,300

11,700

10,9OO

1O,8OO

12,300

14,200

14 , 500

14,400

14,200

16,500

19,300

20,40O

20,100

18,000

17,200

20,900

20,300

20,700

21,300

20,800

19,900

19,200

19,600

21,300

21,800

21,400

22,000

20,900

21,300

22,600

Secondfoot days

190 050

212!38O

174,000

2,328,650

335,350

177,760

266,910

540,800

526,500

396,710

195,720

233,140

245,650

3,494,970

May

22,800

22,500

22,300

22,200

22,100

22,OOO

21,6OO

21,600

21,600

21,700

21,600

21,300

20,500

20,100

19,600

17,800

13,100

11,300

12,200

12,800

12,600

12,500

12,600

12,200

11,500

11,200

12,500

11,500

12,100

13,100

14,000

Maximum

8,170

11,900

4,640

21,000

21 800

6J980

2 2 ',600

22,800

19,300

7,460

8,060

9,020

22,800

June

14,800

15,400

14,900

14,500

14,900

16,900

19,300

19,200

17,400

16,000

15,500

15,100

14,800

14,100

13,500

13,100

12,800

12,800

12,900

12,600

12,400

11,500

9,680

9,130

8,920

9,040

9,060

9,040

8,970

8,470

Minimum

5,250

5,880

5,110

3,310

5,370

5,190

3,780

10,800

11,200

8,470

5,190

7,060

7,050

3,780

July

7,460

6,910

6,690

6,520

6,490

6,480

6,640

6,520

6,600

6,430

6,400

6,290

6,170

6,090

5,950

5,840

5,580

5,540

5,470

5,300

5,230

5,190

5,290

5,420

6,320

6,910

7,120

7,170

7,340

7,220

7,140

Aug.

,O60

,300

,230

,160

,180

,220

,280

,380

,510

,520

,500

,510

,520

,480

,480

,460

,430

,380

,580

,510

,530

,480

,630

,720

,780

,620

,820

,860

,940

8,01O

8,060

Mean

6,131

7,079

5,613

6,380

10,820

6,130

8,610

18,030

16,980

13,220

6 314

7 521

8)l88

9,549

Sept.

8,030

8,130

8,170

8,090

&, 160

8,200

8,340

8,500

8,490

8,680

8,740

8,760

8,530

8,120

8,010

8,000

7,850

8,120

8,660

8,700

9,020

8,680

8,350

8,040

8,020

,870

,700

,400

,240

,050

-

Runoff in 

ao re-feet

377,000

421,200

345,100

4,619,000

665,200

352,600

1, 073^000

1,044,000

786,900

388,200

462,400

487,200

6,932,000

889419 O - 50 - 21
310 SACRAMENTO RIVER MAIN STEM 

Sacramento River at Verona, Calif.

Location.- Water-stage recorder, lat. 38°46'50", long. 121°36'15", in SEv sec. 23, T. 11 

N., K. 3 E., 0.8 mile southeast of Verona and 1 mile downstream from Feather River. 

Zero of gage is set 0.06 foot below datum of Corps of Engineers. Auxiliary gage is 

water-stage recorder at Sacramento weir 16 miles downstream; set to datum of Corps of 

Engineers.

Records available.- May 1926 to September 1948 (1926-29, low-water periods only). 

Average discharge.- 19 years (1929-48), 16,640 second-feet.

Extremes.- Maximum discharge during year, 56,600 second-feet Apr. 19 (gage height, 34.07 

feet); minimum discharge, 6,420 second-feet July 23; minimum gage height, 11.79 feet 

Oct. 7.

1926-48: Maximum discharge, 79,200 second-feet Mar. 1, 1940 (gage height, 41.20 

feet); minimum, 281 second-feet July 24, 1931 (gage height, 6.93 feet).

1,934-48: Maximum combined discharge of Sacramento River at Verona and Fremont weir, 

about 315,000 second-feet Mar. 1, 1940.

Remarks.- Records good. Reservoirs, many diversions, and considerable return water affect 

flow. When.discharge is larger than about 55,000 second-feet, flow begins over Premont 

'weir (just upstream) into Yolo Bypass (see p. 389). Elevation of crest of Premont 

weir is 33.5 feet (datum of Corps of Engineers).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

7,

4

5

6

7

fl

9

10

11

12

13

14

15

16

17

18

19

20

21

?2

23

24

25

26

27

28

29

30

31

Oct.

7,170

7,350

7,200

6,950

6,950

6,920

6,710

6,660

7,080

7,780

8,390

9,050

9,040

8,560

8,250

7,990

9,580

12,900

11,900

10,200

8,860

8,950

9,200

9,140

8,930

8,630

8,250

7,990

8,490

9,290

12,300

Nov.

13,500

13,200

16,000

16,200

14,100

12,600

11,500

10,700

9,980

9,310

8,980

8,970

8,710

8,930

9,140

8,930

8,580

8,370

8,590

8,610

8,560

8,470

8,290

7,990

7,880

8,200

8,290

8,250

7,880

8,020

-

Dec.

,810

,620

,970

,920

,890

,040

,910

,670

,400

,620

,910

,760

,670

,510

,380

,090

,240

,600

8,020

8,240

8,340

8,470

8,660

9,390

9,320

8,540

7,760

7,860

7,760

7,680

8,120

Jan.

8,290

8,150

9,800

16,400

20,600

27,000

31,700

36,300

42,800

45,000

41,300

34,200

28,300

24,000

20,400

17,900

16,600

15,500

14,400

13,300

12,800

12,500

11,900

11,500

11,000

10,500

10,000

9,980

10,100

10,300

10,500

Feb.

10,100

9,640

9,590

9,790

10,300

11,100

11,600

11,400

11,000

10,700

10,900

10,800

10,600

10,300

9,970

9,840

9,930

10,100

10,000

9,790

9,680

9,570

9,380

9,450

9,450

9,520

9,370

9,350

9,280

-

-

Month

December. ..................................

Calendar year 19*7 ......................

March. .....................................

May........................................

September. .................................

Water year 1947-48 ......................

Mar.

9,130

8,720

8,450

8,040

7,640

,450

,270

,350

,540

,720

,380

,340

,670

8,920

10,800

12,000

13,100

14,600

15,800

15,500

14,700

13,200

11,700

15,800

34,300

38,900

38,400

34,900

30,700

27,400

25,300

Apr.

24,200

22,600

22,200

24,400

26,500

28,200

28,800

27,300

26,400

32,800

42,200

46,000

45,500

42,000

38,400

41,000

46,700

54,000

56,500

55,700

54,100

53,000

52,800

53,200

53,100

52,400

51,400

50,700

50,300

51,400

-

Secondfoot-days

296,730

246,170

3,858,530

593 020

292 500

304,710

6,260,390

May

52,800

53,300

53,300

53,100

52,600

52,400

52,500

52,700

52,100

50,600

48,700

46,700

44,600

42,900

42,000

40,000

36,500

34,500

34,100

33,400

32,500

31,000

29,300

28,200

28,600

29,600

30,600

30,900

29,800

28,600

29,700

Maximum

16,200

9,390

46,800

11,500

56,500

June

31,200

30,500

31,000

31,600

32,000

32,900

33,500

34,300

34,000

33,700

32,900

31,200

29,900

28,200

26,600

25,100

23,800

22,700

21,800

21,000

20,300

19,300

17,200

15,400

14,700

14,000

13,900

13,400

12,800

12,600

-

Minimum

7,880

7,090

4,000

9,330

6,500

July

11,700

10,700

10,200

9,910

9,640

9,370

9,260

9,260

9,180

8,960

8,790

8', 430

8,180

7,990

7,770

7,620

7,380

7,240

7,060

6,820

6,620

6,560

6,500

6,500

7,290

7,940

8,160

8,240

8,230

8,310

8,140

Aug.

8,240

8,410

8,350

8,350

8,280

8,430

8,430

8,600

8,620

8,790

8,840

8,670

8,720

8,770

8,740

8,840

8,650

8,720

8,860

8,910

8,910

8,890

8,890

8,960

9,040

8,910

9,010

9,160

9,260

9,400

9,380

Mean

9,891

7,941

10,570

10,160

17,100

Sept.

9,330

9,370

9,370

9,350

9,380

9,350

9,500

9,700

9,730

9,840

10,000

10,100

9,950

9,750

9,450

9,640

9,550

9,750

10,500

10,800

11,200

11,500

11,500

11,300

11,200

11,000

10,800

10,700

10,600

10,500

-

Runoff in 

acre feet

588,600

488,300

7,654,000

604,400

12.417.000
PIT RIVER BASIN

Pit River near Canby, Calif.

Location.- Water-stage recorder, lat. 41°24', long. 120°55', in SW-j sec. 10, T. 41 N., R. 

y i. , at lower end of Warm Spring Valley, 4 miles southwest of Canby. Altitude of 

gage, about 4,300 feet (from topographic map).

Drainage area.- 1,430 square miles, excluding Goos_e Lake Basin.

Records available.- January 1904 to December 1905, May 1929 to September 1948 (1929-31 

incomplete).

Average discharge.- 17 years (1931-48), 199 second-feet.

Extremes.- Maximum discharge during year, 1,300 second-feet June 11 (gage height, 4.96 

feet); minimum, 4.0 second-feet Aug. 6.

1904-5, 1929-48; Maximum discharge recorded, 17,000 second-feet Mar. 8, 1904 (gage 

height, 14.0 feet, datum then in use); minimum, 0.1 second-foot Apr. 29, Aug. 5, Sept. 

18, 1934, Aug. 18-21, 1935.

Remarks - Records fair except those for periods of ice effect or no gage-height record, 

wnich are poor. Flow regulated by many small reservoirs since beginning of record 

(total usable capacity now about 100,000 acre-feet). Many diversions above station 

for irrigation.

Rating table, water year 1947-48, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used May 19 to July 2)

2.3

2.4

2.5 47

2.8 

3.0 

3.2

205

300

4.2 

4.6 

4.9

400

620

660

1,110

1,300

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15.

16 

17 

18 

19 

20

21 

22 

23 

24

25

26

27 

28 

29 

30 

31

Oct.

12 

13 

14

15 

17

19 

21 

28 

38 

30

30 

54 

40 

33 

32

40 

54 

45 

27 

18

23 

92

110 

77 

74

67 

62 

65 

58 

62 

69

Nov.

60 

60

56 

65 

a70

a65 

a65 

a65 

a60 

a55

a55 

a60 

a55 

a50 

a55

a60 

a65 

a65 

a60 

a55

a55 

a55 

a60 

a60 

*a60

62 

54 

65 

77 

82

Dec.

90 

101 

87 

85 

85

82

77 

72 

65 

b50

b60 

b60 

b65 

65 

67

51 

74 

67 

74 

74

69

72 

72 

b70 

b70

b70 

*74 

77 

b70 

b65 

b60

Jan.

72 

74 

79 

104 

158

395 

609 

782 

668 

570

340

175 

125 

110 

b85

b85 

b85 

b80 

b70 

b80

b70 

b70 

b70 

b65 

b60

b55 

*b60 

b60 

b60 

b55 

b60

Feb.

b50 

b50 

b45 

b40 

b50

b50 

b50 

49 

51 

b45

b45 

b40 

b50 

49 

67

104 

*132 

122 

110 

132

101 

-- 90 82~ 

82 

79

74 

77 

74 

82

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194"

ter year 1947-48 .......................

Mar.

82 

69 

62 

51 

32

44 

40 

40 

37 

32

22

26 

27 

27 

24

26 

37 

49 

49 

42

44 

45 

--. 125 

315 

466

521 

472 

380 

330 

340 

175

Apr.

116 

79 

77 

85 

113

184 

300 

488 

543 

614

866 

1,120 

1,030 

866 

782

668 

614 

609 

592 

510

444 

428 

438 

406

375

325 

315 

330 

380 

428

Secondfoot-days

1,339 

1,831 

2,220

25,522.5

5,431 

2,072 

4,031 

14,125 

16,880 

19,383 

2,088 

1,239.9 

1,918

72,557.9

May

395 

335 

285 

250 

241

250 

295 

375 

406 

380

345 

265 

205 

158 

214

236 

210 

155 

494 

1,060

130 

110 

110 

170 

120

1,020 

860 

764 

710 

686 

656

Maximum

110 

82 

101

860

782 

132 

521 

1,120 

1,170 

1,290 

250 

110 

175

1,290

June

632 

614 

582 

543 

554

592 

740 

860 

1,050 

1,230

1,290 

1,240 

1,150 

1,050 

944

830 

692 

532 

385 

395

438 

455 

477 

482 

444

360 

290 

223 

162 

147

July

125 

82 

38 

19

16

22 

79 

250 

214 

92

82 

104 

90 

77 

62

101 

79 

67 

62 

60

56 

44 

30 

22

26

33 

32 

30 

32 

32 

30

Minimum

12

50

50

2.4

55 

40 

22 

77 

155 

147 

16 

6.7 

14

6.7

Aug.

28 

27 

26 

21 

17

11 

6.7 

8.9 

11 

10

9.5 

8.9 

7.2 

7.2 

8.9

7.2 

6.7 

7.7 

14 

42

49

110 

107 

92 

90

92 

90 

74 

62 

90 

98

Mean

43.2 

61.0 

71.6

69.9

175 

71.4 

130 

471 

545 

646 

67.4 

40.0 

63.9

198

Sept.

69 

51 

38 

28

14

14 

32

113 

175 

132

98 

98 

82 

42 

40

47 

44 

47 

47 

47

47 

47 

45 

60 

69

65 

77 

92 

79 

79

Runoff in 

acre-feet

2,660 

3,630 

4,400

50,630

10,770 

4,110 

8,000 

28,020 

33,480 

38,450 

4,140 

2,460 

3,800

143,900

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis 

South Fork Pit River near Likely.

b Stage-discharge relation affected by Ice.

of recorded range In stage and records for
312 PIT RIVER BASIN

Pit River at Fall River Mills,-Calif.

Location.- Water-stage recorder, lat. 41°00', long. 121°26', in NE£ sec. 6, T. 36 N., R. £ 

K., U.8 mile downstream from Fall River and town of Fall River Mills. Altitude of 

gage, about 3,235 feet (from topographic map).

Drainage area.- 4,150 square miles, excluding Goose Lake Basin.

Kecords available.- December 1922 to September 1948. March 1921 to December 1922 at site 

U.Y mile upstream.

Average discharge.- 25 years (1923-48), 460 second-feet (excluding flow of Fall River).

Kxtremes.- Maximum discharge during year, 3,830 second-feet Apr. 12 (gage height, 4.54 

teet) ; minimum, 58 second-feet Aug. 11, 12, 20.

1921-48: 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 

Ax/d~ studies; minimum, 12 second-feet Aug. 5, 1926, Oct. 23, 1936.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Flow regulated by many small reservoirs (total usable capacity now about 123,000 acrefeet). Fall River is diverted through Pit No. 1 powerhouse and returned to Pit River 

below station. Many diversions above station for irrigation. River re-ceives return 

flow from McArthur, Knoch, and other diversions above station.

Cooperation.- Water-stage recorder graph furnished by Pacific Gas & Electric Co.

Rating table,- water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

0.4 53 1.3 265

.5 66 1.6 400

.7 98 2.0 630

.9 142 2.4 920

1.1 200 2.8 1,260

3.2 1,690

3.6 2,220

4.0 2,850

4.5 3,750

Discharge, in second-feet, water year October 1947 to 'September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

83

81

81

81

81

81

83

90

88

96

98

96

93

91

93

102

102

143

176

156

153

410

132

132

135

179

173

170

176

215

185

Nov.

203

212

203

194

203

200

203

224

215

212

209

203

194

209

194

185

203

182

176

179

191

188

173

182

179

176

182

224

194

188

-

Dec.

182

194

203

215

221

218

215

212

206

a!90

a 180

179

156

173

176

176

188

200

200

209

215

a220

a220

a220

a220

h224

224

224

224

215

a!90

Jan.

a200

200

209

282

552

618

1,170

2,340

2,920

2,120

1,440

1,080

744

516

411

365

a340

a320

a300

a280

a270

a260

h244

a230

a220

a210

a200

a!90

also

170

173

Feb.

182

182

170

170

179

179

156

153

173

170

156

159

173

173

176

212

254

305

355

346

314

301

314

310

285

273

269

262

254

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1947 ......................

January. ...................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

251

244

234

218

209

206

194

179

179

188

185

179

173

194

197

237

273

273

301

380

450

422

494

810

1,170

1,810

1,770

2,210

2,820

2,750

2,240

Apr.

1

l

l

l

l

1

l

l

1

3

3

3

3

2

2

2

2

2

1

1

1

1

1

1

1

1

1

1

1

Secondfoot-days

3,785

5,880

6,289

92,685

18,754

6,605

21,440

57,132

35,890

38,750

5,662

2,454

3,930

206,571

970

620

230

080

992

100

700

790

740

970

080

660

570

030

800

790

Q40

260 -

080

860

630

560

750

690

480

270

140

160

240

250

-

May

1,160

1,140

1,040

928

848

751

702

688

709

744

758

744

688

643

588

504

499

576

880

1,360

1,850

2,260

2,430

 2,180

1,930

1,790

1,690

1,530

1,450

1,370

1,460

Maximum

215

224

224

3,090

2,920

355

2,820

3,660

2,430

3,140

400

102

191

3,660

June

1,470

1,320

1,220

1,180

2,210

3,140

1,980

1,800

1,850

1,750

1,740

1,740

1,740

1,700

1,620

1,470

1,320

1,220

1,150

968

818

758

570

636

624

624

636

564

504

428

-

Minimum

81

173

156

62

170

153

173

992

499

428

8]

58

84

58

July

360

400

370

301

244

212

176

137

132

118

307

254

194

167

170

176

176

167

170

.170

156

140

110

108

140

116

98

81

102

106

a 104

Aug.

a!02

alOO

a98

a98

a96

95

81

76

75

70

61

61

61

60

65

78

69

68

66

58

60

83

95

78

75

76

84

90

91

93

91

Sept.

93 '

96

118

123

125

106

100

98

84

93

104

132

118

179

191

179

173

153

150

140

135

132

128

123

123

140

140

148

153

153

-

 .._ Runoff in Mean acre-feet

122 7,51'0

196 11,660

2O3 12,47O

254 183,800

605 37,200

-228 13,100

69? 42,530

1/904 ] 13, 300

1,158 71,190

t,292" 76,860

183 11,230

79.2 4,870

131 7,800

564 409.700

a No gage-height record; discharge Interpolated, 

h Computed from staff-gage reading.
PIT RIVER BASIN 313

Pit River below Pit No. 4 Dam, Calif.

Location.- Water-stage recorder, lat. 40°59 I , long. 121°47', in SW£ sec. 17, T. 36 N., R. 2

E., 1 mile downstream from Pit No. 4 Dam and 3 miles downstream from Screwdriver Creek

and Pit No. 3 powerhouse. Altitude of gage, about 2,345 feet (from river-profile map). 

Drainage area.- 4,860 square miles, excluding Goose Lake Basin. 

Hecords available.- July 1927 to September 1948. 

Average discharge?- 37 years (1911-48), 2,594 second-feet. Period 1911-27 extrapolated or

oasis or records for Pit River at Big Bend. 

Extremes.- 'Maximum discharge during year, 7,810 second-feet June 6 (gage height, 10.87

feet); minimum, 422 second-feet Oct. 4.

1927-48: Maximum discharge, 30,200 second-feet Dec. 12, 1937 (gage height, 17.90

feet), from rating curve extended above 8,000 second-feet on basis of velocity-area

studies; minimum, 144 second-feet Apr. 15, 1945. 

Remarks.- Records excellent except those for periods of no gage-height record, which are

good. Flow regulated by reservoirs and power plants. Many diversions above station for

irrigation. 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project. 

Revisions (water years).- W 843: 1935(M).

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

6.1 630 7.3 1,680 9.O 4,020

6.4 850 7.6 2.00C

6.7 1,1OO 8.0 2,49C

9.5 4,970

1O.O 5,950

7.0 1,380 8.5 3,180 10.5 7,000

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2,060

2,200

2,060

943

852

2,010

2,250

2,070

2,220

2,230

1,660

1,220

2,150

2,280

2,190

2,270

2,430

1,640

1,240

2,040

2,230

2,310

2,410

2,400

1,550

1,230

2,130

2,250

2,090

2,320

2,560

Nov.

2,330

1,420

2,280

2,160

2,310

2,320

2,370

2,000

1,410

2,160

1,790

2,240

2,270

2,440

1,590

1,230

2,150

2,190

2,190

2,260

2,250

1,720

1,350

2,270

2,270

2,160

1,930

2,240

1,870

1,420

~

Dec.

2,260

2,120

2,200

2,240

2,440

1,780

1,340

2,300

2,300

2,320

2,220

2,210

1,290

1,110

2,300

2,290

2,240

2,240

2,430

1,530

1,270

2,190

2,290

2,100

1,580

2,320

2,260

1,290

2,410

2,370

2,370

Jan.

1,510

2,380

1,970

1,850

2,66O

3,320

3,470

3,770

5,040

a4,900

a4,000

a3,500

3,420

3,500

3,040

2,230

1,560

1,460

2,480

2,570

2,480

2,450

2,590

1,580

1,140

2,420

2,620

2,590

2,510

a2,500

al,500

Feb.

1,120

2,460

2,450

2,400

2,100

1,650

,al,000

al,100

2,210

2,220

2,360

2,430

2,500

1,210

1,020

2 , 200

2,190

2,340

2,490

2,610

2,250

1,530

1,990

2,450

2,540

2,580

2,550

1,860

1,060

-

-

Month

October ....................................

November ...................................

December ....................................

Calendar year 1947 ......................

January. ....................................

February. ..................................

March................ .......................

April ......................................

Bay........................................

June .......................................

July.............. .........................

August ................. , ...................

September ..................................

Water year 1947-48 ......................

Mar.

2,180

2,430

2,480

2,540

2,410

1,420

1,090

2,280

2,280

2,530

2,440

2,490

1,560

940

2,020

2,310

2,270

2,440

2,680

1,750

1,640

2,580

2,700

3,500

3,520

3,480

3,500

3,550

4,440

5,240

4,630

Apr.

4

3

3

3

3

3

3

3

4

a4,

4,

5,

5,

5,

5,

5,

5,

4,

5,

4,

4,

4,

a4,

5,

4,

4,

4,

4,

4,

4,

Secondfoot-days

61,495

60,590

63,610

768,441

83,010

81, 320

134,320

120,330

112 , 680

59,542

56 1 367 

59,919

952,053

270

950

670

480

450

360

520

690

130

200

890

770

610

490

120

610

570

880

050

860

540

550

200

220

060

710

160

110

140

060

-

May

4,650

4,130

3,670

3/710

3,610

3,510

3,6OO

3,600

2,940

3,870

3,640

3,340

3,280

3,390

3,550

2,750

3,760

3,550

3,820

4,160

4,110

4,610

4,5OO

5,220

4,740

4,500

4,420

4,400

4,170

3,450

.3,680

Maximum

2,560

2,440

2,440

5,310

5,040

2,610

5,240

5,770

5,220

6,240

2,7OO

2,310 

2,570

6,240

June

4,680

4,140~

3,800

4,020

3,900

6,240

5,970

4,750

4,540

4,460

4,650

4,320

3,630

4,520

3,990

4,020

3,750

3 ,-7 50

2,790

2,950

3,620

3,480

3,400

2,920

3,080

2,140

1,900

2,340

2,480

2,450

Minimum

852

1,230

1,110

665

1,140 

1,000

940

3,360

2,750

1,900 

651

848

651

July

2,290

2,70O

1,680

876

1,040

2,150

2,230

2,280

2,310

1,790

651

c.,070

2,310

2,310

2,310

2,300

1,230

834

2,310

2,320

2,300

2,330

2,300

1,540

881

2,060

2,280

2,320

2,320

2,120

1,190

Aug.

2,

2,

2,

1,

700

210

310

240

780

1,620

1,

2,

2,

2,

2,

2,

1,

z,z',

2,

2,

270

932

110

190

160

210

170

740

721

040

100

170

120

2,070

1,

1,

2,

2,

250

784

970

110

170

2,160

2,

1,

1,

2,

260

550

010

050

2,190

Mean

1,984

2,020

2,052

2,105

2,678 

2,030

2 , 623

4,477

3 , 882

3,756

1,921

1, 818 

1,997

2, 601

Sept.

2,250

2,270

2,570

1,770

851

1,OOO

2,220

2,170

2,160

2,280

1,590

848

1,900

1,980

1,940

2,250

2,150

2,040

2,150

2,250

2,170

2,150

2,190

2,220

2,170

1,470

2,030

2,220

2,330

2,330

Runoff in 

acre-feet

122 , OOO 

120,200

126,200

1,524,000

164,600

116,800

161,300

266,400

238,700

118, 1OO

111,800 

118,800

1,888,OOO

discharge computed on basis of unpublished records for station at Red
314 PIT RIVER BASIN

Pit River at Big Bend, Calif.

Location.- Water-stage recorder, lat. 41°01', long. 121°55', in sec. 31, T. 37 N., R. 1 

E., at settlement of Big Bend, 0.5 pile downstream from Nelson Creek and 1 mile upstream from Kosk Creek. Datum of gage is 1,674.47 feet above mean sea level, datum of 

1929.

Drainage area.- 4,920 square miles, excluding Goose Lake Basin.

Hecords available.- September 1910 to September 1948.

Extremes.- Maximum discharge during year, 6,230 second-feet June 6 (gage height, 10.34 

feet); minimum, 50 second=feet Dec. 12, 13, 29, Jan. 1 (gage height, 4.18 feet).

1910-48: 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, that of Dec. 12, 13, 29, 1947, Jan. 1, 1948 (after diversion to Pit 

No. 5 powerhouse).

Remarks.- Records good except those for period of no gage-height record, which are fair. 

tflow regulated by reservoirs and power plants above station. Many diversions above 

station; diversion to Pit No. 5 powerhouse began Mayl, 1944. For record closely comparable with previous record of total flow at Big Bend see Pit River below Pit No. 4 

Dam on preceding page

4.2 

4.4 

4.6 101

131

166

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, In second-feet)

Oct. 1 to Mar. 28

5.3 228

5.6 303

5.9 400

6.2 535

6.5 700

900

1,140

1,380

1,770

5.4 

5.7 

6.0 

6.4

250

330

430

600

r. ?9 to Sept. 30

6.8 840

7.2 1,140

7.6 1,480

8.0 1,860

8.5

9.0

9.5

10.0

2,470

3,260

4,220

5,340

Note.- Same as preceding table below 5.3

Discharge, in second-feet, water year October 1947 to September 1948

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.

134

134

131

128

140

138

143

140

140

185

148

138

138

134

157

233

159

141

133

146

136

140

140

138

136

136

136

138

187

164

150

Nov.

150

109

102

101

97

95

91

90

90

91

87

87

87

87

87

82

86

87

87

87

88

86

84

86

84

87

84

84

86

86

-

Dec.

79

63

62

60

60

59

60

60

60

59

59

57

57

58

59

59

66

61

60

62

79

78

69

61

57

57

57

57

56

56

56

Jan.

59

69

79

227

280

280

634

744

1,690

;,750

882

343

117

104

97

88

84

83

78

77

73

72

70

70

69

69

67

66

66

64

62

Feb.

63

63

62

62

63

60

60

62

66

61

59

59

59

60

66

75

72

82

77

74

72

84

78

75

74

72

73

74

72

_

-

Month

December. ..................................

Calendar year 1947 ......................

May........................................

September . .................................

Water year 1947-48 ......................

Mar.

72

69

67

66

67

64

63

66

66

63

62

66

88

90

84

91

90

88

88

83

79

97

225

263

164

150

148

145

1,010

1,840

1,220

Apr.

903

645

397

266

191

225

172

335

854

1,130

2,060

3,140

2,860

2,610

2,460

3,190

2,840

2,860

2,810

2,670

2,120

2,490

3,240

3,120

2,540

a2,4<30

a2,300

a2,200

2,130

2,780

-

Secondfoot-days

2 735

1,903

58,018

1 979

2,380

206,037

May

3 , 330

,760

,710

,770

,800

,810

,620

,840

,020

,800

,600

,300

,190

,350

786

,390

: ,620

: ,410

: ,560

,870

,340

,090

,260

,090

,500

,150

,140

,070

: ,720

,040

,940

Maximum

79

2,300

91

4,940

June

3,060

2,040

1,820

1,630

2,370

4,940

3,600

2,280

2,120

2,040

2,250

2,400

2,970

2,730

1,850

1,750

1,250

1,180

S92

1,050

1,210

1,080

688

320

179

170

166

166

162

164

-

Minimum

56

56

59

95

70

56

July

164

161

153

148

153

157

153

148

153

148

141

148

145

143

141

140

140

138

138

136

136

134

138

133

128

129

129

128

126

129

125

Aug.

128

128

125

123

123

123

121

115

125

120

121

117

114

117

118

114

100

98

98

97

104

104

107

101 ioo

98

98

100

98

98

95

Mean

61.4

159

79.3

563

Sept.

84

79

79

87

87

83

86

83

7

7

5

8

4

8

78

91

84

80

77

75

78

80

77

79

77

78

79

77

73

70

-

Runoff in 

acre- feet

3,770

115,100

4,720

408,600

a No gage-height record; discharge Interpolated.
PIT RIVER BASIN 315

Pit River near Montgomery Creek, Calif.

Drainage area.- 5,170 square miles, excluding Goose Lake Basin. 

Records available.- December 1944 to September 1948.

Extremes.- Maximum discharge during year, 13,000 second-feet-Jan. 7 (gage height, 8.38 

reet); minimum, 625 second-feet Sept. 6.

1944-48: Maximum discharge, 18,600 second-feet Dec. 28, 1945 (gage height, 10.14 

feet); minimum, 570 second-feet Oct. 21, 1945.

.lemarks.- Records excellent. Flow regulated by many small reservoirs and several power 

plants above station since beginning of record. Many diversions above station for 

irrigation. When Shasta Reservoir is full, this station will be just upstream from it.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, In seaond-feet)

2.5 940 4.5- 3,430 6.5 7,800

3.0 1,410 5.0 4,32C

3.5 1,980 5.5 5,39C

7.0 9,100

7.5 10,500

4.0 2,640 6.0 6,560

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2,220

2,380

2,200

988

968

2,300

2,520

2,410

2,510

2,690

1,950

1,380

2,370

2,440

2,510

3,560

2,860

1,970

1,440

2,410

2,430

2,570

2,670

2,560

1,780

1,350

2,390

2,460

2,930

2,890

2,930

Nov.

2,940

1,980

2,550

2,600

2,630

2,670

2,600

2,290

1,650

2,570

2,080

2,510

2,580

2,590

1,890

1,480

2,510

2,470

2,460

2,520

2,470

1,860

1,640

2,550

2,480

2,420

2,160

2,380

2,120

1,560

-

Dec.

2,550

2,400

2,500

2,540

2,600

1,960

1,550

2,570

2,610

2,540

2,480

2,540

1,500

1,350

2,510

2,600

2,540

2,530

2,610

1,830

1,720

2,670

2,780

2,440

1,840

2,560

2,530

1,640

2,630

2,720

2,650

Jan.

2,780

2,690

2,610

4,800

6,210

,7,800

10,500

8,060

7,150

6,880

5,760

4,950

4,460

4,380

4,120

3,030

2,180

2,040

3,070

3,110

3,060

3,100

2,980

2,090

1,460

2,90Q

2,990

'2,920

2,880

2,850

1,920

Feb.

1,430

2,860

2,800

2,750

2,520

1,870

1,510

1,520

2,870

2,730

2,770

2,820

2,830

1,540

1,450

2,860

2,730

3,000

3,040

3,040

2,700

1,930

2,830

3,040

3,060

3,150

3,070

2,360

1,420

-

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. .....................................

April. .....................................

Usav May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

2,830

2,900

2,910

2,380

2,860

1,760

1,520

2,840

2,770

2,890

2,880

2,920

2,190

1,630

2,800

3,050

3,110

3,300

3,430

2,490

2,350

3,350

6,600

6,320

5,580

5,170

4,990

4,990

5,760

S,850

6,340

Apr.

5,

6,

6,

5,

5,

5,

5,

5,

6,

7,

7,

8,

7,

9,

9,

9,

10,

8,

8,

8,

8,

8,

8,

8,

6,

7,

7,

8,

7,

8,

Secondfoot-day s

71,056

69,210

72,490

955,698

125,730

72,500

112,360

227 , 760

190,100

146,240

74,990

66,910

67,760

1,297,106

920

030

060

920

800

500

460

620

950

180

520

190

830

510

700

800

3QO

890

430

230

070

270

550

320

610

210

020

240

910

720

-

May

8,500

7,370

6,880

6,740

6,500

6,630

6,450

6,090

5,180

6,290

5,860

5,520

5,430

5,400

5,62.0.

4,530

6,530

5,840

5,910

6,140

6,120

6,50O

6,200

7,160

6,550

6,270

6,100

6,100

5,780

4,630

5,280

Maximum

3,580

2,940

2,780

7,580

10,500

3,150

6, 850

10,300

8,500

7,740

3,400

2,670

2,670

10,500

June

6,200

5,570

5,150

5,290

5,350

7,550

7,740

6,120

5,870

5,730

5,650

5,410

4,780

5,900

5,250

5,000

4,770

4,680

4,050

3,800

4,500

4,630

4, 380

4,000

3,810

3,130

2,620

2,980

3,240

3,090

Minimum

968

1,480

1,350

792

1,460

1,420

1,520

5,460

4,530

£ , 620

1,070

1,060

1,180

368

July

* 2,940

3,400

2,320

1,360

1,550

2,820

2,920

2,920

2,700

2,620

1,070

2,600

2,860

2,770

2,800

2,780

1,660

1,250

2,790

2,740

2, -840

2,630

2,810

1,930

1,200

2,570

2,820

2,640

2,660

2,500

1,520

Aug.

1,110

2,

?,

2,

610

670

530

2,250

2,070

1,

1,

2,

630

150

540

2,590

2,540

2,

2,

2,

160

150

140

1,060

2,370

2,

2,

2,

150

190

130

2,360

1,520

1,<

2,'

2,

)80

100

570

2,420

2,450

2,

1,

1,'

2,<

500

570

150

150

2,500

Mean

2,292

2,307

2,338

2,618

4,056

2,500

3, 625

fi'l ^?

4J875

2,419

2,158

2,259

3,544

Sept.

2,510

2,550

2,360

2,010

1,240

1,190

2,670

2,390

2,440

2,540

1,700

1,180

2,190

2,160

2,190

2,520

2,520

2,350

2,460

2,530

2,420

2,450

2,490

2,500

2,460

1,670

2,450

2,450

2,660

2,510

Runoff in 

acre feet

140,900

137,300

143,800

1,896,000

249,400

143,800

222 900

451, 800

377,100

290,100

148,700

132 , 700

134,400

2,573,000
316 PIT RIVER BASIN

Soath Pork Pit River near Likely, Calif.

Location.- Water-stage recorder, lat. 41°14', long. 120°25', in NE£ sec. 11, T. 39 N. , R.

 13 E. , 1.3 miles downstream from West Valley Creek and 3.5 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 1948.

Extremes.- Maximum discharge during year, 625 second-feet June 5 (gage height, 4.54 feet); 

minimum, 1.2 second-feet Feb. 11.

1928-48: Maximum discharge, 1,060 second-feet Apr. 27, 1932 (gage height, 5.55 feet), 

from rating curve extended above 600 second-feet; minimum, 0.2 second-foot Feb. 3, 1941.

Remarks.- Records excellent except those for periods of ice effect, which are fair. Flow

 regulated by West Valley Creek Reservoir. Diversions above station for irrigation.

, water year 1947-48 except periods of ice effeo 

(gage height, in feet, and discharge, in second-feat)

1.7

1.8

1.9

2.0

2.1

93

124

3.0 

3.4 

3.8 

4.2 

4.6

366

502

Discharge, in second-feet, water year October 1947 to September 1948

Day

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12

13

14

12

12

12

13

14

15

19

22

20

22

22

21

30

29

22

23

17

27

24

24

23

23

23

Nov.

12

14

18

40

36

32

33

31

30

26

29

25

22

25

29

35

34

31

27

24

27

b26

b26

b26

*b30

30

33

33

30

30

"

Dec.

32

27

28

28

29

26

26

28

b26

b28

b28

b28

b28

b26

26

24

26

26

27

27

27

28

27

23

23

22

*24

31

29

b30

b40

Jan.

b50

48

38

48

50

52

49

48

34

32

27

b27

b26

b25

b25

b25

b25

b25

b25

b25

b25

b21

b21

22

24

b25

b25

*b25

b25

b25

b30

Feb.

b30

b30

b30

b30

b30

b30

b30

b35

b35

b35

b20

b25

b25

b35

b60

38

25

*30

27

27

27

30

26

25

24

26

24

23

23

-

-

Month

December. ..................................

Calendar year 1947 ...................

Hay . . .

September. .................................

Water year 1947-48 ......................

Mar.

b21

b21

b21

b21

b21

24

24

25

25

b21

b21

b28

b28

58

58

59

60

60

59

58

56

40

*35

35

19

17

16

16

14

15

12

Apr.

15

19

16

14

13

18

41

50

52

56

69

63

41

49

72

78

82

86

86

89

93

83

79

49

40

42

50

48

45

45

Secondfoot-days

848

16,985

972

1,296

24,744

May

52

45

45

49

65

93

126

98

69

65

59

73

102

113

140

158

204

211

162

142

142

158

146

170

217

248

290

279

243

226

271

Maximum

40

152

52

93

574

50

574

June

231

243

325

432

574

574

456

385

432

405

334

293

260

236

2Jj

184

189

186

191

213

284

206

178

154

138

128

110

102

94 " 94

-

Minimum

22

10

23

35

12

July

108

104

83

73

79

74

65

53

42

33

54

62

56

52

50

43

41

40

42

49

47

46

43

45

50

54

54

53

48

48

Aug.

48

48

56

64

72

83

92

114

129

135

137

135

133

131

128

118

110

110

93

77

75

75

75

73

72

71

69

56

44

44

45

Mean

27.4

46.5

29 5

31 9

43.2

67.6

Sept.

44

42

42

43

44

44

45

46

47

47

46

44

45

45 44

42

39

37

37

35

35

39

40

41

50

48

50

50

49

Runoff in 

acre feet

1,680

33,680

2,570

49,080

arge measurement made on this day. 

r-ge relation affected by ice.
PIT RIVER BASIN 317

Hat Creek near Hat Creek, Calif.

Location. - Water-stage recorder, lat. 40° 41, long. 121°25' , in SE^- sec. 28, T. 33 N., R. 

b E. , 1 mile northeast of Old Station post office and 8 miles southeast of Hat Creek 

post office. Altitude of gage, about 4,300 feet '(from topographic map).

Drainage area. - 155 square miles.

Records available.- April 1928 to September 1948. July 1926 to April 1928 at site 0.5 

mile upstream.

Average discharge.- 21 years (1926-29, 1930-48), 120 second-feet.

Extremes . - Maximum discharge during year, 392 second-feet June 5 (gage height, 3.45 feet); 

minimum, 101 second-feet Mar. 15.

1926-48: Maximum discharge, 2,500 second-feet Dec. 11, 1937 (gage height, 7.75 feet, 

in gage well, affected by draw-down), by slope-area method; minimum, 67 second-feet 

Sept. 7, 1934.

Remarks . - Records excellent. Small diversions above station for irrigation.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

2.3 104 2.7 182 

2.4 120 2.8 206 

2.5 138 3.0 259 

2.6 159 3.2 316

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

110 

110 

110 

110 

110

110 

112 

115 

114

117

117 

114 

112 

112 

115

215 

134 

122 

117 

125

127 

122 

120 

117 

117

117 

115 

118 

120 

120 

118

Nov.

127 

124 

120 

120 

118

118 

118 

118

118 

117

118 

117 

118 

118 

118

117 

117 

117 

115 

114

115 

110 

110 

114 

115

115 

115 

115 

115 

115

Dec.

115 

114 

115 

112 

114

112 

112 

112 

112 

112

112 

112 

112 

114

114

114 

115 

114 

114 

114

114 

114 

114 

112 

112

112 

114 

114 

110 

109 

109

Jan.

115 

124 

115 

122 

136

159 

208 

172 

140 

133

125 

124 

122

118 

118

118 

117 

117 

117 

115

117 

117 

117 

115 

114

110 

109 

112 

112 

112 

114

Feb.

114 

112 

112 

112 

112

112 

112 

112 

112 

114

114 

112 

112 

114 

114

115 

114 

112 

112 

110

112 

122 

114 

112 

112

112 

112 

112 

110

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

mber. ..................................

lendar year 1947 

ary

h. .....................................

1. .....................................

ember. .................................

ter year 1947-48 ......................

Peak discharge (base, 170 sec. -ft.).- Oct.

zsi sec. -ft.; Apr. 15 (9 p.m.) 177 sec. -ft.; 

265 sec. -ft.; June 5 (3 a.m.) 392 sec. -ft.

Mar.

110 

112 

110 

110 

110

110 

110 

110 

110 

109

110 

110 

110 

112 

109

110 

110 

109 

109 

107

109 

110 

110 

109 

107

109 

114 

114 

115 

115 

115

Apr.

117 

117 

112 

110 

110

110 

112 

114 

114 

112

112 

114 

114 

134 

173

164 

159 

153 

151 

148

151 

144 

138 

133 

138

136 

134 

136 

131 

129

Secondfoot-days

3,712 

3,506 

3,499

44,713

3,864 

3,271 

3,424 

3,920 

5,331 

6,524 

4,565

;,6aa

3,482

48,786

16 (10 a.m 

May 17 (11

May

127 

127 

131 

136 

146

159 

166 

151 

142 

142

151 

161 

173 

175 

182

206 

259 

204 

166 

155

151 

159 

182 

2O4 

219

229 

222 

189 

170 

170 

177

Maximum

215 

127 

115

215

203 

122 

115 

173 

259 

313 

209 

124 

120

313

June

187 

209 

222 

227 

313

246 

235 

227 

237 

232

222 

224 

211

206 

201

201 

199 

199 

206 

219

219 

214 

211 

211 

214

209 

206 

204 

204 

209

Minimum

110 

110 

109

102

109 

110 

107 

110 

127 

187 

120 

112 

112

107

July

209 

194 

184 

177 

173

168 

155 

151 

151 

155

153 

153 

151 

148 

144

144 

140 

138 

138

136

134 

133 

133 

131 

129

129 

124 

122 

120 

124 

124

Aug.

124 

124 

124 

124 

124

124 

124 

124

124 

120

117 

117 

115 

115 

114

114 

114 

114 

118 

120

120 

120 

120 

120 

120

118 

118 

117 

115 

114 

112

Mean

120 

117 

113

123

125 

113 

110 

131 

172 

217 

147 

119 

116

133

Sept.

112 

112 

112 

112 

112

112 

112 

115 

115 

115

115 

115 

115 

115 

115

115 

117 

118 

118 

118

118 

118 

118 

118 

120

120 

120 

120 

120 

120

Runoff in 

acre feet

7,360 

6,950 

6,940

88,690

7,660 

6,490 

3,790 

7,780 

10,570 

12,940 

9,050 

7,320 

3,910

96,760

) 386 sec. -ft.; Jan. 7 (4:30 to 6:30 p.m.) 

a.m. to 2 p.m.) 279 sec. -ft.; May 26 (11 p.m.
PIT RIVER BASIN

Squaw Creek above Shasta Reservoir, Calif.

Location.- Water-stage recorder, lat. 40°51', long. 122°07', in SWij sec. 29, T. 35 N., 

H. 2 W., 0.5 mile upstream from Salt Creek, about 2 miles upstream from Shasta Reservoir and, 10 miles west of town of Montgomery Creek. Altitude of gage, about 1,170 feet 

(from topographic map).

Drainage area.- 65.3 square miles.

Records available.- December 1944 to September 1948.

Extremes.- Maximum discharge during year, 3,630 second-feet Jan. 7 (gage height, 13.66 

feet); minimum, 14 second-feet Oct. 5, 6.

1944-48: Maximum discharge, 6,150 second-feet Dec. 27, 1945 (gage height, 16.00 

feet); minimum, 12 second-feet Sept. 22 to Oct. 1, Oct. 12-15, 1946.

Remarks.- Records good. No diversion.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, in second-feet)

7.2 

7.5 

7.9 

8.3

100

138

206

290

396

545

9.5 

10.0

10 5

11 0

12.0

13.0

720

950

1,210

1,510

2,220

3,040

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14 

14 

14 

14 

14

14 

23 

47 

34 

186

84 

40 

31 

26 

42

388 

123 

70 

55 

53

49 

43 

39 

37 

35

3? 

32 

37 

253 

181 

106

Nov.

104 

93 

80 

72 

64

58 

54 

51 

47 

45

43 

41 

40 

38 

40

38 

35 

34 

33 

32

31 

30 

30 

29 

28

28 

28 

27 

27 

28

Dec.

31 

2V 

28 

28 

26

26 

26 

26 

25 

24

24 

24 

24

24 

24

23 

32

30 

27 

31

63 

95 

34 

54 

48

44 

41 

40 

38 

36 

35

Jan.

38 

75 

122 

1,400 

1,410

1,890 

2,900 

1,500 

796 

537

393 

319 

270 

238 

210

190 

172 

159 

146 

135

125

119 

114 

110 

105

99 

95 

92 

90 

87 

84

Feb.

81

79 

76 

77 

77

72 

69 

76 

90 

82

72 

70 

69 

68 

80

85 

91 

100 

108 

100

95 

102 

95 

91 

88

85 

83 

94 

86

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

liber . ..................................

lendar year 1947 

ary . .

h. ................................. .

1. .....................................

St. ....................................

amber. .................................

ter year 1947-48 ......................

Peak discharge (base, 1,900 sec. -ft.).- Ja

sec. -ft.; Mar. Z3 ^1:30 p.m.) 3,000 sec. -ft.

Mar.

82

80 

78 

75 

75

73 

71 

74 

72 

68

67 

72 

174 

226 

210

264 

302 

312 

353 

314

270 

346 

2,360 

1,840 

1,260

837 

6BO 

639 

621 

598 

549

Apr.

497 

565 

814 

8S8 

980

1,020 

788 

711 

1,130 

1,500

1,060 

846 

738 

1,080 

1,550

1,310 

1,180 

1,000 

850 

738

702 

796 

814 

716 

616

545 

549 

1,020 

1,250 

1,610

Secondfoot-days

2,131 

1,328 

1,088

45,166

14,020 

2,441 

13,042 

27,843 

12,536 

4,394 

1,773 

930 

671

82,197

May

1,430 

1,100 

960 

832 

723

652 

577 

505 

440 

396

363 

337 

314 

295

277

264 

286 

261 

242 

234

224 

210 

201 

192 

184

177 

179 

175 

172 

168 

160

Maximum

388 

104

95

2,930

2,900 

108 

2,360 

1,610 

1,430 

295 

80 

39 

44

2,900

June

151 

143 

140 

184 

232

295 

255 

226 

206 

197

184 

163 

159 

149

143

134 

123 

123 

118 

117

112

105 

101 

97 

94

92 

88 

87 

84 

82

Minimum

14

27 

23

14

38 

68 

67 

497 

160 

82 

40 

24 

18

14

July

80 

78 

75 

73 

78

77 

72 

68 

SS 

64

63 

51 

59 

57 

55

54 

53 

52 

51 

49

49 

47 

47 

46 

46

45 

44 

42 

41 

41 

40

Aug.

39 

38 

37 

36 

35

34 

34 

33

31 

31

30 

30 

30 

28 

28

28 

28 

28 

28 

28

26 

28 

35 

30 

28

26 

26 

25 

24 

24 

24

Mean

68.7 

44.3 

35.1

124

452 

84.2 

4^1 

928 

404 

146 

57.2 

30.0 

22.4

225

Sept.

23 

22 

22 

22 

21

20 

20 

19 

19 

19

19 

18 

18 

18 

18

18 

30 

44 

30 

24

23 

23 

24 

24 

23

23 

22 

22 

22

21

Runoff in 

acre feet

4,230 

2,630 

2,160

89,600

27,810 

4,840 

25,870 

55,230 

24,860 

8,720 

3,520 

1,840 

1,330

163,000

n. 4 (4:30 p.m.) 2,930 sec. -ft.; Jan. 7 (1 p.m.) 3,630
PIT RIVER BASIN 319

McCloud River near cicCloud, Calif.

Location.- Water-stage recorder, lat. 41°lli , long. 122°04', in NE£ sec. 34, T. 39 N., R. 

Z W. , 0.5 mile downstream from Angel Creek and 6 miles southeast of McCloud. Altitude 

of gage, about 2,750 feet (from topographic map).

Drainage area.- 382 square miles.

Records available.- Anril 19'31 to September 1948.

Average discharge.- 17 years, 836 .second-feet.

Extremes.- Maximum discharge during year, 2,6"00 second-feet Jan. 7 (gage height, 3.68 

I'eet ) ; minimum, 682 second- feet Dec. 30.

1931-48: Maximum discharge, 8,820 second-feet Feb. 28, 1940 (gage height, 8.9 

feet), from rating curve extended above 3,700 second-feet on basis of velccity-area 

and AV3T studies; minimum, 524 second-feet Nov. 23, 24, 1932.

Remarks . - Records excellent. Two, small diversions above station for irrigation.

Rating table-water year 1947-48 (gage height, In feet, 

and discharge. In second -feet)

1.0 670 1.6 965 2.5 1,59O 

1.2 754 1.8 1,080 3.0 1,99O 

1.4 853 2.1 1,290 3.5 2,44o

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

706 

706 

7O6 

706 

706

706 

710 

714 

719 

728

714 

710 

706 

702 

728

828 

754 

728 

719 

719

719 

714 

710 rio

706

706 

702 

706 

732 

741 

728

Nov.

736 

741 

728 

723 

719

714 

710 

710 

710 

706

706 

702 

702 

702 

702

702 

702 

702 

702 

698

698 

694 

694 

698 

698

698 

698 

698 

698 

698

Dec.

698 

698 

698 

698 

694

694 

694 

694 

690 

690

69O 

690 

690 

690 

690

690 

690 

690 

690 

694

694 

694 

690 

690 

690

690 

690 

690 

690 

686 

686

Jan.

690 

690 

694 

768 

995

1,580 

2,430 

1,740 

1,190 

1,020

930 

880 

843 

817 

8O2

788 

778 

768 

759 

750

745 

741 

736 

736 

732

723 

719 

719 

719 

714 

714

Feb.

714 

710 

706 

710 

710

710 

706 

710 

706 

706

702 

702 

706 

706 

706

706 

710 

714 

719 

714

710 

719 

723 

714 

710

710 

710 

710 

706

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ......................:............

nber. ..................................

lendar year 1947 

ary

1. .....................................

ter year 1947-48 ...............

Mar.

706 

702 

702 

702 

702

698 

698 

702 

698 

698

694 

698 

706 

702 

698

702 

698 

698 

698 

694

694 

714 

728 

723 

723

719 

719 

723 

732 

745 

750

Apr.

759 

783 

788 

733 

773

759 

754 

754 

783 

807

797 

797 

792 

930 

1,200

1,270 

1,360 

1,320 

1,240 

1,210

1,210 

1,170 

1,140 

1,080 

1,060

1,060 

1,050 

1,210 

1-.260 

1,170

Secondfoot-days.

22,289 

21,189 

21,442

280,347

27,910 

20,585 

21,966 

30,069 

37,010 

29,965 

25,174 

23,705 

22,507

303,811

Peak discharge (base, 1,000 sec .-ft.) .--Jan. 7 (6 p.m

May

1,120 

1,100 

1,110 

1,150 

1,180

1,250 

1,290 

1,220 

1,170 

1,140

1,140 

1,150 

1,170 

1,170 

1,160

1,180 

1,440 

1,380 

1,260 

1,190

1,170 

1,160 

1,160 

1,180 

1,230

1,260 

1,260 

1,210 

1,160 

1,140 

1,110

Maximum

828 

741 

698

1,260

2,430 

723 

750 

1,360 

1,440 

1,230 

864 

778 

768

2,430

June

1,100 

1,110 

1,130 

1,170 

1,220

1,230 

1~,140 

1,120 

1,100 

1,080

1,060 

1,030 

1,010 

989 

965

953 

942 

930 

919 

913

913

907 

896 

891 

885

880 

880 

869 

869 

864

Minimum

702 

694 

686

686

690 

7,02 

694 

754 

1,100 

864 

778 

754 

745

686

July

864 

858 

853 

843 

848

848 

838 

828 

822 

822

622 

317 

817 

812 

812

812 

812 

812 

802 

797

797 

792 

792 

788 

788

783 

783 

778 

778 

778 

778

Aug.

778 

778 

778 

773 

773

773 

773 

773 

768 

764

764 

764 

764 

764 

764

759 

759 

759 

764 

764

Y64 

764 

759 

759 

759

764 

759 

759 

754 

754 

754

Mean

719 

706 

692

768

900 

710 

709 

1,002 

1,194 

999 

812 

765 

750

830

) 2,600 sec. -ft.; Apr. 17 (7 p.m.

Sept.

754 

754 

754 

754 

750

750 

750 

750 

750 

750

750 

750 

750 

745 

750

750 

764 

768 

754 

750

750 

750 

745 

745 

745

745 

745 

745 

745 

745

Runoff in 

acre- feet

44,210 

42,030 

42,530

556 , 100

55,360 

4O,830 

43,570 

59,640 

73,410 

59,430 

49,93O 

47,020 

44,640

602,600

) 1,390

sec.-ft.; Apr. 28 (10 p.m.) 1,340 sec.-ft.; May 17 (4 p.m.) 1,570 sec.-ft.
320 PIT RIVER BASIN

McCloud River above Shasta Reservoir, Calif.

Location.- Water-stage recorder, lat. 40°57', long. 122_°13' , in'NW^ sec. 28, T. 36 N., R. 

3 W., just upstream from Shasta Reservoir, 0.3 mile downstream from Bollibokka Creek 

and 11 miles east of town of Delta. Datum of gage is 1,100 feet above mean sea level 

(levels by Bureau of Reclamation).

Drainage area.- 606 square miles.

Records available.- October 1945 to September 1948.

Extremes.- Maximum discharge during year, 14,100 second-feet Jan. 7 (gage height, 20.25 

feet), from rating curve extended above 5,000 second-feet by logarithmic plotting: 

minimum, 850 second-feet Oct. 1-7.

1945-48: Maximum discharge, that of Jan. 7, 1948; minimum, 850 second-feet Sept. 14, 

15, 21-30, Oct. 1-7, 1947.

Remarks.- Records excellent. Some very small diversions above station for domestic use.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, In second-feet)

10.8 830 13.0 2,540 17.0 7,800 

11.0 935 14.0 3,600 18.0 9,500 

11.4 1,190 15.0 4,850 19. 0' 11,400 

12.0 1,660 16.0 6,250 19.4 12,200

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

850 

850 

850 

850 

850

850 

918 

924 

957 

1,210

996 

913 

896 

886 

1,130

2,310 

1,350 

1,090 

1,010 

1,010

984 

952 

940 

930 

918

913 

908 

946 

1,420 

1,320 

1,160

Nov.

1,180 

1,130 

1,080 

1,060 

1,030

996 

979 

968 

957 

952

940 

935 

930 

930 

935

924 

918 

913 

908 

902

902 

896 

891 

891 

891

891 

886 

886 

886 

891

Dec.

891 

886 

891 

886 

880

880 

880 

875 

870 

870

870 

865 

865 

870 

870

865 

886 

880 

875 

902

968 

1,010 

952 

930 

908

908 

902 

896 

891 

880 

880

Jan.

908 

979 

1,000 

3,030 

4,550

8,520 

12,100 

6,620 

3,830 

2,880

2,390 

2,090 

1,880 

1,720 

1,620

1,530 

1,470 

1,400 

1,360 

1,310

1,260 

1,230 

1,210 

1,190 

1,170

1,140 

1,120 

1,110 

1,090 

1,080 

1,070

Feb.

1,060 

1,050 

1,040 

1,040 

1,040

1,030 

1,010 

1,040 

1,040 

1,030

1,000 

984 

990 

990 

1,010

1,020 

1,030 

1,080 

1,100. 

1,070

1,050 

1,100 

1,080 

1,060 

1,050

1,040 

1,040 

1,060 

1,030

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

ffa

niber. ............ 1 .....................

nber. ...................................

lendar year 1947 

ary ...... ...

ember. .................................

ter year 1947-48 ......................

liar.

1,020 

1,010 

1,010 

996 

996

990 

990 

996 

990 

979

973 

990 

1-.110 

1,120 

1,110

1,170 

1,170 

1,180 

1,170 

1,140

1,120 

1,390 

3,080 

2,900 

2,460

2,000 

1,840 

1,800 

1,860 

1,920 

1,910

Apr.

1 

2 

2 

2 

2

2 

2 

1 

2 

3

2 

2 

2 

3 

5

5 

4

4 

3 

3

3 

3 

3 

2 

2

2 

2 

3 

3 

3

Secondfoot-days

32,091 

28,478 

27,682

445,479

73,857 

30,164 

43,390 

92,910 

79,330 

51,430 

35,610 

31,133 

28,852

554,927

,880 

,080 

,320 

,400 

,410

,310 

,090 

,990 ,670' 

,460

,840 

,480 

,300 

,550 

,530

,140 

,920 

,230 

,680 

,370

,290 

,200 

,060 

,830 

,660

,560 

,530 

,460 

,940 

,730

May

3,580 

3,360 

3,300 

3,270 

3,220

3,250 

3,150 

2,920 

2,700 

2,560

2,480 

2,450 

2,430 

2,400 

2,330

2,340 

2,620 

2,640 

2,400 

2,260

2,190 

2,140 

2,130 

2,160 

2,220

2,250 

2,280 

2,180 

2,080 

2,040 

1,960

Maximum

2,310 

1,180 

1,010

5,620

12,100 

, 1,100 

3,080 

5,530 

3,580 

2,390 

1,300 

1,030 

1,080

12,100

June

1,910 

1,910 

1,960 

2,170 

2,270

2,390 

2,210 

2,080 

2,020 

1,980

1,910 

1,820 

1,760 

1,710 

1,660

1,630 

1,600 

1,560 

1,540 

1,530

1,500 

1,450 

1,430 

1,400 

1,370

1,360 

1,350 

1,320 

1,320 

1,310

Minimum

850 

886 

865

850

908 

984 

973 

1,880 

1,960 

1,310 

1,030 

968 

940

850

July

1,300 

1,280 

1,280 

1,250 

1,300

1,280 

1,240 

1,210 

1,190 

1,180

1,180 

1,170 

1,170 

1,160 

1,160

1,140 

1,130 

1,130 

1,110 

1,110

1,100 

1,080 

1,070 

1,060 

1,060

1,060 

1,060 

1,040 

1,040 

1,040 

1,030

Aug.

,030 

,030 

,030 

,030 

,030

,020 

,020 

,020 

,020 

,010

,010 

,010 

,010 

,010 

,000

996 

996 

996 

1,010 

1,000

996 

1,000 

1,010 

996

990 

984 

984 

979 

974 

974 

968

Mean

1,035 

949 

893

1,220

2,382 

1,040 

1,400 

3,097 

2,559 

1,714 

1,149 

1,004 

962

1,516

Peak discharge (base, 3,600 see. -ft.).- Jan. 7 (10 a.m.) 14,100 sec. -ft.: Mar. 23 (2 D.

Sept.

962 

962 

957 

957 

957

957 

952 

952 

946 

946

946 

946 

946 

940 

940

946 

1,010 

1,080 

1,000 

974

968 

968 

968 

962 

957

'957 

952 

952 

946 

946

Runoff in 

acre-feet

63,650 

56,490 

54,910

883,600

146,500 

59,830 

86,060 

184,300 

157,300 

102,000 

70,630 

61,750 

57,230

1,101,000

m.) 3,310

4,100 sec.-ft.
CLEAR CREEK BASIN 321

Clear Creek near Igo, Calif.

Location (revised).- Water-stage recorder, lat. 40°30'50", long. 122°31'20", in

sec. vt, T. 31 M., R. 6 W.,_ at highway bridge on Redding-Igo road, 1.0 mile northeast 

of Igo, 8 miles southwest of Redding and 9 miles upstream from mouth. Altitude of 

gage, about 700 feet; (from topographic map).

Drainage area.- 231 square miles.

Records available.- October 1940 to September 1948.

Extremes.- Maximum discharge during year, 4,580 second-feet Jan. 7 (gage height, 7.18 

reetj; minimum, 16 second-feet Oct. 1.

1940-48: Maximum discharge, 19,200 second-fee^ Mar. 1, 1941 (gage height, 12.2 

feet), from rating curve extended above 12,000 second-feet on basis of velocity-area 

studies; minimum, 10 second-feet Sept. 12-15, 1944, Sept. 19, 1945.

Maximum stage known, about 13 feet in February 1940, from information by local 

residents.

Remarks.- Records excellent. Small diversions above station.

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Mar. 22 Mar. 23 to Sept. 30

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0 

3.2 

3.5 

3.8 

4.2

109

134

162

228

350

515

780

4.6 

5.0 

5.5 

5.9 

6.5 

6.8

1,060

1,400

1,930

2,430

3,340

3,860

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

72

91

114

140

3.0 

3.2 

3.5 

3.8

170

236

360

515

Note.- Same as preceding table above 

3.8 feet.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

16

18

19

19

18

18

26

39

89

204

122

69

51

44

107

930

261

145

109

93

104

91

80

73

71

67

65

80

457

298

194

Nov.

201

184

151

134

122

109

102

100

91

86

82

78

76

76

80

80

76

73

71

71

69

69

67

67

67

65

65

65

64

64

-

Dec.

64

62

62

67

64

62

61

61

61

59

59

59

57

56

57

54

67

65

64

114

172

175

142

122

107

98

91

88

86

82

82

Jan.

104

406

286

419

1,160

3,060

3,690

1,920

1,090

780

588

473

400

346

315

286

262

247

228

214

204

194

188

181

175

165

159

151

148

145

142

Feb.

140

140

137

140

140

137

132

154

172

156

137

132

132

129

140

145

145

148

154

151

145

151

151

140

134

132

126

145

134

_

-

Month

December. ...................................

Calendar year 1947 ......................

March, .....................................

April ......................................

t^y. ......... ...............................

September. .................................

Water year 1947-48 ......................

Mar.

126

122

119

114

112

112

109

119

126

112

109

109

162

162

156

282

266

243

236

214

204

587

1,180

1,020

815

'627

510

476

515

466

440

Apr.

415

849

1,110

1,200

1,010

836

710

752

1,200

1,200

990

857

815

1,450

1,790

1,530

1,320

1 , 1-10

934

864

892

878

794

724

668

588

654

892

1,270

1,560

Secondfoot-days

3 977

2,520

56,758

9,950

1,093

102,685

May

1,380

1,200

1,080

997

920

857

787

717

654

594

551

527

493

466

445

435

430

415

405

395

375

356

338

328

315

299

324

342

395

415

351

Maximum

930

175

2,640

172

1,180

1,790

74

3,690

June

324

303

294

290

303

315

290

266

255

485

601

460

395

346

320

303

274

255

244

233

222

202

196

189

180

170

161

155

146

140

-

Minimum

54

16

126

109

415

140

22

16

July

137

137

146

135

135

152

137

130

122

114

114

114

107

102

80

91

89

87

85

82

80

80

76

72

72

72

69

67

65

64

60

Aug.

57

55

54

52

50

49

48

46

48

48

48

44

43

42

42

4,2

40

40

40

40

38

38

44

46

44

40

38

36

36

35

34

Mean

81.3

156

585

142

321

995

567

277

99.1

43.8

36.4

281

Sept.

34

33

30

30

28

28

27

26

26

25

25

24

24

23

22

24

42

74

64

50

44

42

44

48

44

44

44

43

42

39

-

Runoff in 

acre-feet

7,890

5,000

112,600

35,950

8,170

19,740

59; 230

34,880

16,500

6,100

2,690

2,170

203,700

Peak discharge (base, 5,600 see.-ft.).- Jan. 7 (9 a.m.) 4,580 sec.-ft.
322 COTTONWOOD CREEK BASIN

Cottonwood Creek near Cottonwood, Calif

Location.- Water-stage recorder, lat. 40°24', long. 122°13', in NE^ sec. 7, T. 29 N., R. 

3 W., 2 miles east of Cottonwood and 2 miles upstream from mouth. Altitude of gage, 

abi_ut 370 feet (from river-profile map).

Drainage area.- 945 square miles.

Records available.- October 1940 to September 1948.

Extremes.- Maximum discharge during year, 9,870 second-feet Apr. 29 (gage height, 8.40 

reet); minimum, 36 second-feet Oct. 7, Sept. 8, 9.

'1940-48: Maximum discharge, 52,300 second-feet Mar. 1, 1941 (gage height, 15.4 

feet), from rating curve extended above 30,000 second-feet; minimum, 15 second-feet 

on several days during September 1945.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Small diversions above station.

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge. In second-feet)

Oct. 1 to Apr. 28 Apr. 29 to Sept. 30

1.6 36 2.6 420 5.O 2,750 1.5 24 2.3 30O 4.5 1,880 

1-7 60 2.8 54S 5.5 3,440 1.6 44 2.5 4O5 5:0 2,380 

1.8 87 3.0 700 6.0 4,200 1.7 67 2.7 525 5.5 2,940 

2.0 149 3.5 1,130 6.5 5,050 1.8 95 3.O 730 6.0 3,690 

2-2 222 4.0 1,600 1.9 129 3.5 1,080 6.5 4,690 

2.4 310 4.5 2,130 2.1 209 4.0 1,450

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

50 

50 

46 

43 

41

38 

41 

63 

84 

117

152 

93 

71 

60 

55

355 

403 

214 

149

120

102 

93 

102 

96 

90

87 

82 

82 

183 

315 

260

Nov.

226 

243 

222 

195 

174

160 

149 

139 

130

127

120 

117 

111 

111 

114

117 

117 

111 

108 

102

102 

99 

96 

96 

96

96 

96 

93 

93 

90

Dec.

90 

87 

87

87 

87

87 

87 

84 

82 

82

82 

82 

82 

80 

80

80 

79 

96 

92 

90

160 

210 

215 

170 

155

140 

130 

125 

120 

115 

110

Jan.

110 

220 

1,130 

628 

1,160

2,820 

4,810 

4,510 

2,040 

1,350

1,010 

831 

692 

584

515

445 

403 

374 

346 

326

310 

292 

273 

260 

251

235 

230 

222 

218 

214 

214

Feb.

203 

199 

195 

192 

199

199 

195 

195 

256 

243

218 

195 

188 

192 

188

218 

247 

247 

251 

256

239 

230 

256 

251 

239

226 

214 

207 

203

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1947 ......................

ary

ember. .................................

ter year 1947-48 ......................

Mar.

195 

188 

180 

177 

170

166 

160 

160 

174 

170

156 

156 

166 

188 

184

214 

326 

282 

278 

247

226 

222 

2,400 

2,260 

1,360

840 

668 

591 

620 

620 

591

Apr.

570 

598 

968 

1,150 

1,120

942 

848 

1,240 

1,990 

2,570

1,580 

1,210 

1,080 

3,170 

4,600

3,700 

2,830 

2,190 

1,770 

1,530

1,490 

2,370 

1,880 

1,520 

1,320

1,220 

1,130 

1,610 

4,230 

3,490

Secondfoot-days

3,737 

3,850 

3,353

113,383

27,023 

6,341 

14,335 

55,916 

27,683 

14,014 

3,773 

1,513 

2,110

163,648

Peak discharge (base, 6,900 sec. -ft.).- Jan. 7 (11:30

May

,890 

,470 

,320 

,260 

,190

,0.80 

,160 

,080 

989 

919

877 

877 

814 

779 

737

709 

744 

758 

716 

723

716 

660 

618 

597 

611

604 

639 

681 

702 

870 

793

Maximum

403 

243

215

11,900

4,810 

256 

2,400 

4,600 

1,890 

786 

218 

81 

122

4,810

June

695 

674 

660 

667 

653

653 

584 

538 

564 

611

786 

660 

611 

584 

544

477 

429 

400 

356 

330

320 

300 

276 

262 

253

244 

235 

222 

213 

213

Minimum

38 

90 

79

28

110 

188 

156 

570 

597 

213 

46 

40 

42

38

July

193 

188 

193 

197 

188

218 

209 

188 

180 

172

156 

148 

137 

122 

112

105 

102 

95 

87 

78

75 

70 

67 

70 

75

78 

65 

62 

46 

46 

51

Aug.

Mean

121 

128 

108

311

872 

219 

462 

1,864 

893 

467 

122 

48.8 

70.3

447

p.m.) 6,920 sec. -ft.; Apr. 29 (9:

53 

56 

53 

51 

49

46 

44 

44 

42 

40

40 

40 

40 

40 

40

44 

46 

49 

49 

49

49 

53 

81 

60 

53

51 

51 

49 

49 

46 

56

Sept.

49 

53 

53 

46 

46

44 

44 

42 

42 

44

42 

42 

46 

46 

42

49 

65 

95

122 

122

112 

119 

122 

115 

105

95 

85 

80 

75 

68

Runoff in 

acre-feet

7,410 

7,640 

6,650

224,900

53,600 

12,580 

28,430 

110,900 

54,910 

27,800 

7,480 

3,000 

4,190

324,600

30 p.m.)

9,870 sec.-ft.

Note.- No gage-height record Dec. 10 to Jan. 2, Sept. 27-30; discharge computed on basis of range 

in stage and records for Clear Creek near Igo.
 BATTLE CREEK BASIN

Battle Creek near Cottonwood, Calif.

location.- Water-stage recorder, lat. 40°24', long. 122°08', in NWi sec. 6, T. 29 N., R. 

a W., 3 miles upstream from mouth and 9 miles east of Cottonwood. Datum of gage is 

421.47 feet above mean seal level (levels by Bureau of Reclamation).

Drainage area.- 362 square miles.

Records available.- October 1940 to September 1948.

Extremes.- Maximum discharge during year, 10,300 second-feet Mar. 23 (gage neight, 10.48 

feet); minimum, 104 second-feet Sept. 25.

1940-48: Maximum discharge, 12,800 second-feet Feb. 6, 1942 (gage height, 11.85 

feet), from rating curve extended above 10,000 second-feet; minimum, 86 second-feet 

Aug. 11, 1946.

Maximum stage known, 15.8 feet, from floodmarks, Dee. 11, 1937 (discharge, 35,000 

second-feet, by slope-area method).

Remarks.- Records good. Flow regulated by four small power plants and several small reservoirs above station. About 10 second-feet diverted above station for irrigation.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

2-3 141 3.4 487 5.5 1,980 

2-4 159 3.8 655 6.0 2,750 

2-6 207 4.2 850 6.5 3,550 

2.8 268 4.6 1,080 7.0 4,350 

3.0 337 5.0 1,420 7.1 4,520

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

155 

161 

159 

157 

159

155 

166 

219 

186 

271

252 

202 

197 

199 

199

548 

399 

302 

249 

258

418 

309 

271 

252 

242

236 

236 

246 

484 

564 

359

Nov.

1,220 

577 

348 

278 

302

252 

242 

230 

227 

227

224 

227 

224 

224 

227

236 

230 

222 

219 

219

216 

207 

213 

216 

219

216 

210 

219 

213 

216

Dec.

222 

219 

242 

271 

262

255 

258 

268 

255 

242

249 

249 

242 

249 

255

252

288 

278 

265 

330

326 

351 

292 

275 

262

262 

252 

249 

265 

246 

242

Jan.

260 

1,560 

710 

1,540 

1,190

745 

1,230 

1,020 

642 

543

475 

433 

403 

380 

373

359 

348 

337 

334 

323

316 

312 

316 

302 

303

292 

271 

285 

285 

285 

282

Feb.

275 

282 

278 

282 

285

299 

285 

282 

395 

320

268 

265 

255 

249 

258

299 

288 

282 

285 

268

262 

275 

312 

285 

271

249 

249 

246 

262

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1947 

ary

h. .....................................

ember ..................................

ter year 1947 48 ......................

Mar.

249 

239 

242 

230 

233

227 

233 

249 

242 

239

233 

236 

242 

316 

292

282 

465 

351 

373 

312

235 

292 

4,530 

1,900 

999

700 

614 

585 

568 

610 

568

Apr.

1 

1

2

2

1

1 

1

1

1

2

1

1

Secondfoot-days

8,209 

8,300 

8,173

100,469

16,457 

8,111 

17,146 

31,766 

26,267 

24,975 

11,289 

7,054 

6,466

174,213

552 

564 

602 

668 

602

560 

527 

824 

897 

,710

,270 

770 

682 

,260 

,150

,350 

,160 

,000 

906 

865

922 

160 

040 

860 

810

785 

780 

710 

670 

110

May

990 

875 

835 

820 

825

870 

900 

820 

770 

725

715 

725 

725 

750 

745

790 

1,010 

1,060 

900 

890

845 

750 

760 

815 

860

900 

906 

895 

930 

936 

930

Maximum

564 

1,220 

351

2,170.

1,560 

395 

4,530 

2,710 

1,060 

2,540 

519

239

4,530

June

860 

855 

885 

948 

2,540

1,490 

1.17Q 

1,060 

1,120 

1,000

890 

855 

795

780 

735

700 

673 

673 

650 

332

646 

593 

576 

564 

568

568 

552 

539 

527 

531

Minimum

155 

207 

219

148

260 

246 

227 

527 

715 

527 

258 

213 

197

155

July

519 

503 

468 

448 

440

448 

425 

403 

388 

380

384 

384 

373 

366 

359

359 

359 

348 

341 

334

323 

323 

312 

299 

303

302 

292 

282 

285 

278 

258

Aug.

258 

265 

252 

246 

239

230 

222 

227 

236 

227

227 

227 

227 

219 

224

230 

219 

213 

219 

219

219 

224 

249 

227 

216

213 

219 

219 

216

213

Mean

265 

277 

264

275

531 

280 

553 

1,059 

847 

832 

364 

228 

216

476

Peak discharge (base, 2,400 sec. -ft.).- Nov. 1 (4:30 p.m.) 2.620 see. -ft.: Jan. 2 (1? m

Sept.

207 

207 

202 

207 

210

207 

210 

197 

199 

204

207 

210 

202 

199 

202

204 

233 

239 

233 

222

222 

227 

227 

230 

224

230 

224 

224

230 

227

Runoff in 

acre-feet

16,280 

16,460 

16,210

199,300

32,640 

16,090 

34,010 

63,010 

52,100 

49,540 

22,390 

13,990 

12,830

345. BOO

) 3,040

ec.-ft.j Jan. 4 (9:30 p.m.) 6,640 sec.-ft.; Mar. 23 (6 p.m.) 10,300 

.-ft.; Apr. 14 (1 p.m.) 4,290 sec.-ft.; Apr. 28 (3:30 p.m.) 6,480

ec.-ft.; Apr. 10 (11 p.m'.) 3,790 

ec.-ft.; June 5 (3 a.m.) 4,090
324 ANTELOPE CREEK BASIN

Antelope Creek near Red Bluff, Calif.

Location.- Water-stage recorder, lat. 40°12',, long. 122°07', in SE^ sec. 7, T. 27 N., R. 

2 W., 6 miles upstream from mouth and 6 miles east of Red Bluff. Altitude of gage, 

about 340 feet (from topographic map).

Drainage area.- 124 square miles.

Records available.- October 1940 to September 1948.

Extremes.- Maximum discharge during year, 7,690 second-feet Mar. 23 (gage height, 11.66 

reet); minimum, 28 second-feet Oct. 9.

1940-48: Maximum discharge, 10,400 second-feet Feb. 6, 1942(gage height, 13.9 feet); 

minimum, 14 second-feet Oct. 1, 1940.

Flood of December 1937 reached stage of about 22 feet, from floodmarks.

Remarks.- Records good. Small diversion above station for Red Bluff water supply during 

October to June of each year.

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Mar. 23 Mar. 24 to Sept. 3o

1.6

1.7

1.8 

1^9 

2.6 

2.2

2.4 

2.7 

3.0 

3.5 

4.0 

4.5

132

192

260

387

535

730

5^0 1,000

6.O 1,700

7.0 2,600

8.1 3,710

2.9

3.0

3.1

3.2

3.3

3.4 85

3.6 

3.8 

4.0 

4.2 

4.4 

4.7

134

189

254

330

432

620

5.0 

5.5 

6.0 

6.3

825

1,200

1,600

1,840

Discharge, in second-feet, water year October 1947 to. September 1948

Day

I

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.

32

32

32

32

32

32

36

46

36

60

60

43

39

38

36

219

97

55

46

42

70

56

46

41

39

39

38

42

246

143

78

Nov.

912

302

118

86

77

63

56

52

49

47

44

44

43

43

43

43

43

43

42

42

42

42

41

41

41

41

41

41

41

41

-

Dec.

41

40

40

41

41

40

40

40

40

39

39

39

39

39

39

39

57

61

48

63

74

77

o3

56

52

49

45

45

45

43

42

Jan.

45

327

226

250

258

294

670

477

265

184

139

114

loo

89

80

74

68

65

61

59

55

54

53

52

50

49

47

44

44

44

44

Feb.

44

43

43

45

52

53

49

46

55

66

53

48

47

48

49

57

55

55

56

54

52

52

54

52

50

48

47

48

50

_

-

Month

December. ...................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

47

46

45

44

43

43

43

43

47

45

43

43

49

86

106

188

423

192

199

149

118

1OO

3,610

1,840

836

410

286

234

211

240

201

Apr.

177

174

283

405

310

283

217

397

542

410

378

283

240

961

1,200

715

516

394

322

283

290

432

421

318

272

247

251

1,170

1,110

634

-

Secondfoot-days

1,456

25,576

1,089

53., 799

May

432

330

283

261

247

251

254

237

214

198

186

186

189

208

211

227

322

359

290

265

251

217

220

234

254

261

265

261

254

268

279

Maximum

912

77

1,520

3,610

74

40

40

3,610

June

244

237

237

279

1,070

600

405

326

310

265

230

211

189

174

160

150

142

137

129

124

122

112

107

99

97

90

85

81

77

76

-

Minimum

41

39

28

44

43

43

174

36

34

32

July

74

74

66

66

65

66

65

63

59

58

55

53

52

51

50

49

48

47

47

46

45

44

44

44

43

43

42

41

41

40

40

Aug.

40

40

40

40

39

38

38

38

38

38

38

38

38

38

37

37

37

37

37

37

37

37

40

38

38

37

36

36

36

36

36

Mean

86.8

47.0

70.1

141

323

454

255

219

52.3

37.7

36.3

147

Sept.

36

36

36

36

36

36

36

35

35

35

34

34

34

34

34

35

39

40

40

38

37

37

37

37

37

37

37

37

37

37

-

Runoff in 

acre-feet

5,160

2,890

50,710

8,690

2,920

19,850

27,O4O

15,700

13,020

3,220

2,320

2,160

106,700

Peak discharge (base, 2,02O see.-ft.).- Nov. 1 (12:30 p.m.) 2,600 sec.-ft.; Mar. 23 (5:3O p.m.) 

7,69O sec.-ft.; Apr. 28 (5 p.m.) 3,180 sec.-ft.
MILL CREEK BASIN 325

Mill Creek near Los Molinos, Calif.

Location.- Water-stage recorder, lat. 40°03'20", long. 122°01'15", in N| sec. 6, T. 25 N., 

K. 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 1948. September 1909 to September 1913 

(fragmentary) at site 0.3 mile downstream.

Average discharge.- 20 years (1928-4 274 second-feet.

Extremes.- Maximum discharge during year, 7,320 second-feet Mar. 23 (gage height, 10.12 

feet); minimum, 81 second-feet Oct. 5-7.

1928-48: Maximum discharge, 23,000 second-feet Dec. 11, 1937 (gage height, 23.4 

feet, from floodmarks), from rating curve extended above 3,900 second-feet on basis of 

slope-area studies; minimum, 49 second-feet Dec. 13, 1932.

Remarks.- Records good. No storage or large diversion above station.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge in second-feet)

Oct. 1-15 Oct. 16 to Sept. 30

1.3 73 1.3 79 2.4 367 5.0 1,600 

1.4 86 1.4 92 3.0 605 6.0 2,300 

1.5 102 1.5 107 3.5 825 7.0 3,310 

1.7 144 1.7 147 4.0 1,060 7.3 3,650 

1.9 200 2.0 230 4.5 1,310

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

82 

83 

83 

82

81

81 

88 

112 

100

179

165 

108 

100 

100 

102

843 

266 

157 

134 

162

262 

1-72 

147 

134 

125

121 

118 

125 

401 

330 

233

Nov.

837 

432 

256 

224 

215

175 

160 

152 

145 

138

132

129 

125 

125

127

129 

123 

121 

120 

116

116 

114 

112 

112 

114

114 

116 

116 

116 

116

Dec.

118 

116 

116

118 

114

112 

112 

112 

112

111

111 

111 

111 

111 

111

109 

134 

121 

116 

125

132 

147 

129 

121 

120

118 

116 

118 

118 

114 

112

Jan.

118 

456 

348 

337

791

907 

1,730 

1,150 

617 

449

356 

303 

262 

233 

221

203 

192 

180 

172 

164

160 

157 

157 

154 

154

143 

138 

136 

136 

136 

134

Feb.

134 

132 

129 

134 

145

140 

132 

129 

143 

140

129 

125 

125 

125 

129

147 

145 

143 

147 

140

136 

175 

172 

152 

145

145 

140 

143 

138

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ..................................

lendar year 1947 

ary

1... ...................................

St.. ...................................

ember ..................................

ter year 1947-48 ......................

Peak discharge (base, 1,200 sec. -ft.).- Oc

1,800 sec. -ft.; Jan. 7 (1:30 p.m.) 2,670 sec 

1,360 sec. -ft.; Apr. 15 (11 a.m.) 2,170 sec.

Mar.

134 

132

129 

125 

125

125 

125 

129 

134 

129

125 

125 

143 

183 

178

231 

347 

221 

272 

215

183 

178 

3,650 

1,720 

756

461 

382 

341 

323 

367 

330

Apr.

1 

1

1

1 

1

Secondfoot-days

5,276 

5,127 

3,646

68,230

10,794 

4,059 

12,018 

21,839 

18,058 

17,558 

7,371 

4,230 

3,398

113,374

323 

369 

447 

513 

558

465 

341 

608 

962 

759

691 

513 

437 

090 

640

160 

978 

812 

681 

641

699 

884 

740 

577 

533

525 

513 

390 

170 

820

May

645 

553 

517 

525 

585

686 

735 

573 

501

457

469 

497 

505 

553 

557

617 

834 

744 

577 

533

493 

453 

497 

597 

681

704 

690 

597 

549 

581 

553

Maximum

843 

837

147

2,590

1,730 

175 

3,650 

1,640 

834 

J ,600 

417 

150 

123

3,650

June

549 

593 

650

796 

1,600

946

807 

740 

789

712

593 

577 

517 

513 

473

469 

453 

457 

433 

481

481 

441 

429 

441 

453

441 

433 

433 

429

429

Minimum

81 

112 

109

81

118 

125 

125 

323 

453 

429 

152 

120 

107

81

July

417 

386 

345 

313 

296

279 

259 

259 

252 

259

265 

259 

252 

249 

246

240 

230 

224 

218

209

203 

194 

192 

186 

178

172 

164 

162 

157 

154 

152

Aug.

150 

150 

147 

145 

145

145 

143 

143 

140 

143

140 

140 

140 

138 

138

138 

136 

136

136 

136

134 

132 

134

132 

132

127 

125 

123

121 

121 

120

Mean

170 

171 

118

187

348 

140 

388 

728 

583 

585 

238 

136 

113

310

Sept.

118 

116 

116

116 

116

114 

112

112 

112 

111

109 

109 

109 

107 

107

107 

118 

123 

123 

118

116 

114 

116 

114 

114

112 

112 

111 

109 

107

Runoff in 

acre- feet

10,460 

10,170 

7,230

135,300

21,410 

8,050 

23,840 

43,320 

35,820 

34,830 

14,620 

8,390 

6,740

224,900

t. 16 (7:30 a.m.) 1,990 sec. -ft.; Nov. 1 (4:30 p.m.) 

.-ft.; Mar. 23 (5 p.m.) 7,320 sec. -ft.; Apr. 8 (7 p.m.) 

-ft.; Apr. 22 (6 p.m.) 1,380 sec. -ft.; Apr. 28 (3 p.m.)

3,380 sec.-ft.; June 5 (1 a.m.) 2,760 sec.-ft. 

889419 O - 50 -
326 THOMES CREEK BASIN

Thomes Creek at Paskenta, Calif.

Location.- Water-stage recorder, lat. 39°52", long. 122°33', in NW£ sec. 4, T. 23.N., R. 

6 w., 0.5 mile upstream from Paskenta and 4.5 miles downstream from Mill Croek.

Drainage area.- 188 square miles.

Records available.- Octobrr 1920 to September 1948 at various sites close to Paskenta 

(prior to January 1921, gage heights only).

Average discharge.- 27 years (1921-48), 241 second-feet.

Extremes.- Maximum discharge during year, 5,470 second-feet Jan. 7 (gage height, 7.30 

feet); no flow Oct. 1.

1921-48: Maximum discharge, 18,600 second-feet Jan. 21, 1943 (gage height, 10.92 

feet), from rating curve extended above 7,000 second-feet by logarithmic plotting; no 

flow at times during many years.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

No storage or diversion above station.

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

293d

31

Oct.

0..1

.2

.2

.2

.2

1.1

2.1

2.9

20

95

39

23

16

13

1,110

272

112

70

52

77

81

62

52

45

38

34

36

268

258

137

Nov.

171

177

128

104

96

79

68

62

57

50

46

44

39

39

39

53

45

40

38

34

33

32

31

23

29 ,

28

29

28

28

27

-

Dec.

26

26

25

26

25

22

21

21

20

20

19

20

19

18

18

18

19

22

21

39

38

44

42

34

31

31

32

34

40

34

32

Jan.

34

1,000

598

799

2,020

2,560

3,390

1,620

852

570

417

325

258

213

181

162

147

134

121

112

102

96

88

86

81

75

68

66

62

61

61

Feb.

59

53

46

53

53

57

48

52

62

62

48

46

44

52

118

194

158

158

162

141

125

205

231

177

155

147

137

131

118

-

Month

October. ...................... ...........

November. ...................................

December ....................................

Calendar year 1947 ......................

January. ...................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

110

104

96

91

86

84

81

79

81

75

70

68

73

70

66

70

75

73

75

68

66

79

258

226

162

141

170

213

263

296

319

Apr.

392

477

404

354

296

263

231

273

290

330

301

313

361

783

1,560

1,390

1,160

977

905

959

1,260

1,310

969

792

792

719

615

562

548

491

-

Secondfoot days

2,917

1,703

837

 39,540.5

16,359

3,032

3,788

20,076

15,057

5,880

904

219.1

280.0

71,112.1

May

457

437

470

555

663

79E

767

585

498

457

470

491

477

444

430

498

585

491

424

470

373

312

373

450

512

512

498

398

379

398

361

Maximum

1,110

177

44

3,200

3,390

231

319

1,560

792

379

59

11

70

3,390

June

336

342

379

348

342

348

313

290

301

E84

247

222

203

177

166

155

144

137

128

128

131

110

99

93

88

84

77

73

69

62

-

Minimum

0

27

18

0

34

44

66

231

342

62

11

4

2

0

July

 59

55

50

46

50

52

44

40

38

36

33

32

31

29

E8

26

27

25

21

20

19

18

17

16

16

16

14

13

11

11

11

Aug.

11

10

9.4

8.9

8.4

8.4

7.8

7.8

7.8

7.8

7.8

7.8

7.4

7.4

6.9

6.9

6.9

6.4

6,4

6.4

6.0

6.4

6.9

6.4

6.0

6.0

5.6

5.2

4.5

a4.5

a4

Mean

94.1

56.8

27.0

108

528

107

122

669

486

196

29.2

7.07

9.33

194

Sept.

a3.5

a3.5

a3.5

a3.5

a3

a3

a3

a2.5

aE.5

a2.5

a2.5

a2

a2

a2

a2

a2

al5

a30

a70

a 30

12

11

9.4

8.4

8.9

9.4

8.9

8.4

7.8

7.8

-

Runoff in 

acre-feet 

5,790

3,380

1,660

78,420

32,450

6,130

7,510

39,820

29,870

11,660

1,790

435

555

141,000

Peak discharge (base, 1,200 see.-ft.). Oct. 16 (8:30 a.m.) 2,600 sec.-ft.; Jan. 2 (1 p.m.) 1,820 

sec.-ft.; Jan. 7 (Z p.m.) 5,470 sec.-ft.; Apr. 16 (12:30 a.m.) 1,700 sec.-ft.; Apr. 21 (9 p.m.) 

2,020 sec. ft.

a No gage-height record; discharged computed on basis of range in stage and records for nearby 

stations.
DEER CREEK BASIN 327

Deer Creek near Vina, Calif

Location.- Water-stage recorder, lat. 40°01', long. 121°56', in NE£ sec. 23, T. 25 N., R.

1 W., 0.8 mile upstream from concrete diversion dam and 9 miles northeast of Vina.

Altitude of gage, about 480 feet (from topographic map). 

Drainage area.- 200 square miles. 

Records available.- October 1911 to December 1915, March 1920 to December 1937, January

i93y to September 1948.

Average discharge.- 29 years (1912-15, 1920-37, 1939-48), 289 second-feet. 

Extremes.- Maximum discharge during year, 6,860 second-feet Mar. 23 (gage height, 9.29

feet); minimum, 76 second-feet Oct. 5, 6.

1911-15, 1920-37, 1939-48: Maximum discharge, 23,800 second-feet Dec. 10, 1937

(gage height, 19.2 feet, present datum, from floodmarks), from rating curve extended

above 7,000 second-feet on basis of velocity-area studies; minimum, 43 second-feet

Dec. 13, 1932. 

Remarks.- Records good. No storage or large diversion above station.

Rating table, water year 1947-48 (gage height. In feet, 

and discharge, In second-feet)

2.2 70 3.3 338 5.1 1,350 

2.3 84 3.6 458 5.5 1,660 

2-4 101 3.9 606 6.C 2,150 

2.5 120 4.2 770 6.5 2,750 

2.7 162 4.5 950 7.0 3,430 

3.0 240 4.8 1,140 7.3 3,850

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

77 

77 

77 

77 

76

77 

84 

116 

99 

138

158 

101 

87 

84 

86

533

262 

134 

112 

116

194 

142 

116 

107 

101

98 

96 

99 

251 

313 

207

Nov.

544

435 

218 

179 

199

155 

140 

132 

124 

120

116 

112 

110 

109 

112

116 

112 

107 

105 

101

101 

98 

98 

98 

99

99 

99 

99 

99 

99

Dec.

99 

99 

98 

98 

98

96 

94 

94 

92 

92

92 

94 

92 

92 

96

96 

118 

109 

101 

110

112 

122 

116 

107 

103

99 

99 

103 

103 

98 

94

Jan.

101 

406 

345 

357 

902

851 

1,660 

1,050 

590 

424

327 

a290 

a260 

a230 

a200

186 

174 

a!65 

a!55 

al50

a!45 

a!45 

a!45 

a!40 

a!35

a!30 

a!25 

a!25 

a!25 

a!25 

a!25

Feb.

a!25 

a!20 

alls 

a!20 

a!30

a!25 

a!20 

a!20 

a!25 

a!25

a!20 

alls 

112 

114 

118

IS? 

144 

144 

144 

136

130 

149 

169 

138 

132

130 

130 

128 

126

Month

Octo 

Nova 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

mber. ...................................

lendar year 1947 

ary

h. .....................................

ember. .................................

ter year 1947-48 ......................

Mar.

122 

120 

120 

116 

116

114 

114

116 

120 

118

112 

114 

134 

174 

158

207 

276 

218 

237 

204

181 

186 

3,810 

2,150 

954

585 

495 

458 

415 

481 

458

Apr.

449 

556 

707 

760 

633

514 

428 

740 

1,420 

1,200

962 

748 

633 

1,400 

2,390

1,780 

U520 

1,290- 

1,100 

1,010

1,000 

1,090 

986 

830 

776

764 

737 

1,360 

1,480 

1,380

Secondfoot-daya

4,295 

4,335 

3,116

61,736

10,288 

3,740 

13,183 

30,643 

21,958 

11,984 

4,306 

3,330 

2,869

114,047

Peak discharge (base, 1,200 sec. -ft.).- Jan. 7 (4 p.m.

May

1,200 

992 

884 

848 

884

968 

998 

830 

720 

649

622 

622 

622 

655 

628

649 

759 

788 

682 

660

617 

544 

534 

559 

585

596

585 

590 

564 

575 

549

Maximum

533 

544

122

3,050

1,660 

169 

3,810 

2,390 

1,200 

1,150 

181 

120 

107

3,810

June

495 

486 

476 

511 

1,150

842 

688 

606 

617 

529

476 

436 

395 

368 

345

324 

306 

289 

276 

261

264 

240 

229 

220 

212

204 

196 

186 

181 

176

Minimum

76 

98 

92

74

101 

112 

112 

428 

534 

176 

120 

98 

87

76

July

181 

174 

164 

162 

160

162 

160 

155 

151 

147

142 

140 

138 

136 

134

130 

130 

128 

128

126

126

126 

124 

124 

124

124

124 

122 

122 

122 

120

Aug.

120 

120 

118 

116 

114

114 

112 

112 

110 

110

110 

110 

109 

109 

107

105 

105 

105 

105 

105

103 

103 

105 

105 

103

101 

101 

99 

98 

98 

98

Mean

139 

144 

101

169

332 

129 

425 

1,021 

708 

399 

139 

107 

95.6

312

Sept.

96 

96 

96 

94 

94

92 

92 

92 

91 

91

89 

89 

89- 

87 

87

89 

99 

101 

107 

101

99 

99

101 

101 

101

101 

101 

98 

98 

98

Runoff in 

acre-feet

8,520 

8,600 

6,180

122,400

20,410 

7,420 

26,150 

60,780 

43,550 

23,770 

8,540 

6,600 

5,690

226,200

) 2.360 sec. -ft.; Mar. 23 (5:30 p.m.) 6,860

sec.-ft.; Apr. 8 (10 p.ir

2,350 sec.-ft.; June 5 (2'a.ra.) 1,470 sec'.-ft.

a No gage-height record; discharge computed on basis of recorded range In stage and records for 

Mill Creek near Los Mollnos.
328 CHICO CREEK BASIN

Chico Creek near Chioo, Calif.

Location.- Water-stage recorder, lat. 39°46', -long. 121°46', in Arroyo Chico Grant, 1 mile 

upstream from golf clubhouse in Mumicipal Park and 6 miles northeast of Chico, Butte 

County Datum of gage is 296.31 feet above mean sea level (levels by Corps of Engineers) .

Drainage area.- 68.3 square miles.

Records available.- May 1930 to September 1948.

Average aiscnarge.- 18 years, 133 second-feet.

.Extremes.- Maximum discharge during year, 4,370 second-feet Mar. 23 (gage height, 13.10 

reet); minimum, 20 second-feet Oct. 1.

1930-48: Maximum discharge, 8,260 second-feet Dec. 10, 1937 (gage height, 18.7 

feet, present datum), from orating curve extended above 5,000 second-fee't on basis of 

rating at cable gage, velocity-area studies, and logarithmic plotting; minimum, 10 

second-feet Dec. 11, 1932, Aug. 15, 1939, Sept. 18, 1947.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. No storage or large diversion above station.

Rating tables, water year 1947.-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Apr. 7 Apr. 8 to Sept. 30

2.6

2.7

114

154

225

300

425

5.0 

6.0 

7.0 

8.0 

9.0 

10.0

550

850

1,200

1,550

1,950

2,400

2.6

2.7

2.8 

2'. 9

3.0 

3.2 

3.4 

3.7

107

151

225

Note. - Same as preceding table above 3.7 feet. 

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

22

22

22

22

22

22

24

37

29

55

53

30

26

25

27

237

98

49

39

39

96

60

46

39

35

33

32

33

128

167

93

Nov.

173

218

114

f)3

82

64

55

48

44

41

38

36

35

35

34

35

33

33

32

32

31

30

30

30

30

30

30

30

29

29

-

Dec.

29

29

28

31

29

28

28

28

28

28

28

28

27

27

28

28

36

37

32

34

38

51

46

42

38

37

35

35

35

33

32

Jan.

34

325

316

215

492

575

718

555

298

200

146

114

93

80

70

64

58

54

51

47

45

43

42

40

39

38

37

36

36

36

35

Feb.

35

35

35

36

41

44

38

36

39

40

38

37

38

38

38

42

46

47

48

45

43,

43

43

41

39

38

38

41

38

-

Month

December. ..................................

Calendar year 1947 ......................

March. .....................................

April ......................................

May. .......................................

July. ......................................

September. .................................

Water year 1947-48 ......................

Mar.

37

36

36

35

35

35

34

35

37

35

35

35

51

107

105

169

190

172

228

195

156

146

2,350

1,690

834

486

368

315

272

275

255

Apr.

232

254

392

408

390

350

300

361

881

942

725

530

418

532

974

826

654

520

425

360

358

430

455

388

335

302

300

400

600

708

-

Secondfoot-days

1,013

24,517

4 732

692

45,899

May

717

585

502

435

382

345

315

280

250

220

198

180

168

156

146

a!41

a!40

al38

a!35

a!33

a!30

128

118

109

103

98

92

98

94

111

120

Maximum

237

010

51

2,010

235

26

2,350

June

107

99

94

90

188

235

200

163

a!50

a!30

a!20

a 100

a90

a86

83

77

72

70

67

64

62

59

56

53

53

51

50

48

47

47

-

Minimum

27

17

21

21

July

46

46

46

43

43

44

43

43

43

40

40

38

39

36

38

35

35

36

36

35

32

32

33

33

32

32

32

30

29

30

28

Aug.

28

28

28

28

28

28

28

28

27

26

26

27

27

27

26

26

26

25

26

26

27

26

26

26

24

25

24

22

24

24

24

Mean

32.7

67.2

93 7

23.1

125

Sept.

22

24

22

22

22

22

22

22

22

21

21

21

21

21

21

22

26

26

26

26

25

25

25

25-

25

25

24

22

22

22

Runoff in 

acre- feet

3,300

2,010

48,620

1,370

91,050

Peak discharge (base, 720 sec.-ft.).- Oct. 16 (10:15 a.m.) 735 sec.-ft.; Jan. 7 (3l30 p.m.) 1,270 

sec.-ft.; Mar. 23 (3 p.m.) 4,370 sec.-ft.; Apr. 10 (4 a.m.) 1,100 sec.-ft.; Apr. 15 (l p.m.) 1,120 

sec.-ft.; Apr. 30 (11:30 p.m.) 808 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

Butte Creek near Chico.
STONY CREEK BASIN 329

Stony Creek near Hamilton City, Calif.

Location.- Water-stage recorder, lat. 39°43'20", long. 122°03'10", in Capay Grant, 2.5 

miles southwest of Hamilton City, 8 miles east of Orland, Glenn County, and 5 miles 

upstream from mouth. Altitude of gage, about 150 feet (from topographic map).

Drainage area.- 764 square miles at present site.

Records available.- February 1946 to September 1948; January 1941 to January 1946 at site 

3 miles upstream; records comparable except for extremely low flows.

Extremes.- Maximum discharge during year, 1,980 second-feet Apr. 15 (gage height, 9.20 

feet); no flow for several months.

1941-48: Maximum discharge, 37,500 second-feet Mar. 1, 1941 (gage height, 6.35 

feet, site and datum then in use), from rating curve extended above 30,000 secondfeet; no flow part of each year.

Remarks.- Records good. Flow regulated by East Park Reservoir beginning in 1910 (usable 

capacity, 50,620 acre-feet), Stony Gorge Reservoir beginning in 1928 (usable capacity, 

50,100 acre-feet). Many diversions above station for irrigation of Orland project, 

Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

0

o

0

0

o

0

dloo

deoo

d370

d200

d!3o

d90

d70

d5o

d40

d30

d20

dlO

do

0

0

o

0

0

0

o

0

0

o

o

0

Feb.

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1947 ......................

January ....................................

February ...................................

March ......................................

April ......................................

May........................................

June .......................................

July .......................................

August .....................................

September ..................................

Water year 1947 -48 ......................

Mar. Apr.

0

o

0

0

0

0

0

8.3

318

275

267

210

190

34O

1,680

1,270

935

760

616

507

492

602

607

511

436

408

373

366

801

1,210

-

Secondfoot-days

.0

0

0

16,208

1,710

O

0

13, 18£ . 3

6,486

1,536.8

0

0

0

22,915.1

May

983

571

481

415

330

302

297

294

265

E2E

168

164

f!50

114

99

72

62

73

105

126

143

132

123

111

99

86

86

87

89

106

131

Maximum

0

0

0

1,480

600

0

0

1,680

983

129

0

0

0

1,680

June

127

121

117

129

129

120

113

105

98

90

86

79

74

57

33

19

14

21

4.£

0

0

0

O

0

0

0

0

o

o

0

-

Minimum

0

0

0

0

0

0

0

0

62

0

0

o

0

0

July Aug.

Mean

o

o

0

44.4

55 . 2

0

O

439

209

51 o'. 2

0

0

62.6

Sept.

Runoff in 

acre-feet

o

0

0

32,140

3,390

0

O

26,150

IE , 860

3,050

0

0

0

45,450

Peak discharge (base, 2,OOP sec.-ft.).- No peak above base, 

d Doubtful gage-height record; discharge estimated on basis of recorder graph, point of 

nd weather records, 

f Fragmentary gage-height record; discharge computed from partly estimated gage heights
330 BUTTE CREEK BASIN 

3utte Creek near Chico, Calif.

Location.- Water-stage recorder, lat. 39°44', long. 121°42', in NW£ sec. 36, T. 22 N., R.

 ij K., 0.8 mile downstream from Little Butte Creek and 7.5 miles east of Chico. Altlitude of gage, about 350 feet (from topographic map). 

Drainage area.- 148 square miles.

Hecords available.- November 1930 to September 1948. 

Average discharge:- 17 years (1931-48), 385 second-feet. 

Extremes.- Maximum discharge during year, 5,450 second-feet Mar. 23 (gage height, 7.50

 rfeet')), from rating curve extended above 3,900 second-feet; minimum, 30 second-leet

1930-48- Maximum discharge, 17,000 second-feet Dec. 11, 1937 (gage height, 18.9 

feet, site and datum then in use), from rating curve extended above 6,000 second-feet 

by logarithmic plotting; minimum recorded, 22 second-feet Aug. 19, 1939. 

Remarks.- Records good except those for period of no gage-height record, which are fair,

 ^uTfe Creek receives considerable water above station from West Branch Feather River by 

way of De Sabla and Centerville power plants. Pacific Gas & Electric Co. has furnished 

the following record of this flow for 1947-48.

Month

Oetobe 

Novemb 

Decemb 

Januar 

February

July. .--.---..-.-.....

August 

Sept em 

Wate

ber . ............

r year. .........

Mean discharge 

(second-feet)

41.5 

56.6 

55.0 

69.4 

62.8 

63.7 

72.4 

7T.6 

74.4 

62.8 

50.2 

55.0

61.8

Runoff 

(acre-feet)

2,550 

3,370 

3,380 

4,270 

3,610 

3,920 

4,310 

4,770 

4,430 

3,860 

3,090 

3,270

44,830

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

102 

102 

102 

102 

97

102 

94 

122 

136 

244

236 

133 

102 

94 

a!15

a700 

a400 

alSO 

a!40 

a!40

a300 

a220 

168 

142 

136

130 

130 

139 

353 

368 

247

Nov.

418 

385 

278 

250 

247

224 

206 

195 

188 

181

168 

161 

168 

161 

164

152 

164 

155 

149 

146

142 

136 

136 

142 

142

139 

139 

136 

133 

130

Dec.

139 

136 

127 

142 

133

133 

124 

124 

127 

124

116 

124 

122 

119 

124

131 

152 

142 

133 

133

152 

199 

171 

146 

142

152 

138 

126 

138 

130 

136

Jan.

133 

746 

576 

493 

999

773 

1,450 

1,160 

662 

491

393 

344 

312 

278 

266

258 

243 

231 

231 

220

213 

220 

213 

209 

203

202 

199 

202 

188 

195 

202

Feb.

209 

175 

185 

195 

217

209 

217 

206 

206 

209

199 

181 

185 

185 

185

206 

217 

202 

220 

199

199 

202 

213 

188 

192

192 

188 

209 

188

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febn 

Hare 

Apri 

Mav

June 

July 

Augu 

Sept

ffa

lendar year 1947 

ary

4. .............................

St. ...........................

amber. .................................

ter year 1947-48 ......................

Mar.

178 

188 

188 

181 

178

171 

175 

175 

188 

171

175 

171 

254 

358 

317

413 

424 

368 

435 

312

254 

283 

2,760 

2,240 

1,140

761 

648 

608 

570 

602 

582

Apr.

576 

697 

835 

798 

747

683 

608 

714 

1,650 

1,650

1,340 

1,070 

945 

1,250 

2,000

1,810 

1-.680 

1,450 

1,280 

1,190

1,220 

1,360 

1,240 

1,080 

1,000

975 

960 

1,130 

1,350 

1,430

Secondfoot-days

5,776 

5,535 

4,235

85,019

12,508 

5,778 

15,468 

34,718 

26,487 

13,575 

6,198 

4,437 

4,132

138 ,,847

May

1,260 

1,120 

1,080 

1,060 

1,080

1,120 

1,100 

975 

902 

842

812 

798 

835 

850 

912

842 

975 

938 

842 

783

725 

662 

669 

690 

697

711 

704 

669 

622 

690 

622

Maximum

700 

418 

199

3,160

1,450 

220 

2,760 

2,000 

1,260 

880 

258 

161 

155

2,760

June

582 

589 

602 

615 

880

718 

C62 

608 

589 

557

508 

497 

446 

435 

419

398 

383 

378 

363 

330

344 

330 

317 

312 

321

295 

283 

270 

266 

278

Minimum

94 

130 

116

66

133 

175 

171 

576 

622 

266 

152 

124 

110

94

July

220 

258 

243 

250 

250

231 

243 

239 

231 

231

227 

E06 

217 

202 

195

199 

199 

168 

185 

192

181 

168 

168 

175 

158

168 

171 

164 

155 

152 

152

Aug.

139 

149 

149 

142 

133

142 

124 

136 

158

139

124 

133 

158 

149 

139

161 

152 

139 

152 

149

146 

146 

155 

152 

146

139 

142 

1?9 

127 

142 

136

* Bean

186 

184 

137

233

403 

199 

499 

1,157 

854 

452 

200 

143 

138

379

Sept.

136 

136 

130 

136 

136

124

152 

133 

136 

139

142 

119 

146 

139 

130

136 

146 

152 

139 

155

139 

149 

133 

146 

139

149 

146 

146 

113 

110

Runoff in 

acre-feet

11,460 

10,980 

8,400

168,600

24,810 

11,460 

30,680 

68,860 

52,540 

26,930 

12,290 

8,800 

8,200

275,400

Peak discharge (base, 1.100 sec.-ft.).- Jan. 7 (5:30 p.m.) 2,390 sec.-ft.; Mar. 23 (6 p.m.) 5,450 

sec.-ft.; Apr. 9 (11 a.m.) 1,890 sec.-ft.; Apr. 15 (3 p.m.) 2,100 sec.-ft.; Apr. 21 (10 p.m.) 1,530 

sec.-ft.; Apr. 29 (7 p.m.) 1,610 sec.-ft.

a No gage-height' record; discharge computed on basis of recorded range in stage and records for 

Chieo Creek near Chico.
FEATHER RIVER BASIN 331 

Lake Almanor near Prattville, Calif.

Location - Staff gage, lat. 40°10'30", long. 121°05'25", in NW£ sec. 28, T. 27 N., R. 8 

E., at outlet tower at dam on North Fork Feather River and 5 miles southeast of Prattville. 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 1948 (yearly summaries only prior to October 

 T33U~. See Water-Supply Paper 881).

Extremes.- Maximum contents observed during year, 650,900 acre-feet June 26-30 (elevation, 

4,474.05 feet); minimum observed, 368,700 acre-feet Oct. 9 (elevation, 4,459.58 feet).

1913-48: Maximum contents, 798,900 acre-feet June 9, 1928 (elevation, 4,480.5 feet); 

minimum, 5,230 acre-feet Feb. 5, 1918 (elevation, 4,416.1 feet).

Remarks.- Lake is formed by earth-fill dam; storage began in July 1913; dam raised to elenation 4,455 feet above mean sea level in 1917 and to 4,515 feet above mean sea level 

in 1927. Capacity, 649,800 acre-feet between elevations 4,400 feet (bottom of outlet 

to river) and 4,474 feet (present allowable upper storage limit). Water is diverted by 

tunnel to Butt Valley Reservoir for use in Caribou power plant and some is released 

down North Fork Feather River (see following page). Records show contents at 12 p.m. 

interpolated from readings made at 5 p.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 river.

Cooperation.- Records of contents, furnished by Pacific Gas & Electric Co., obtained in 

connection with a Federal Power Commission project.

Contents, In thousands of acre-feet, water year October 1947 to September 1948

Da»

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Got.

376.3

375.1

373.9

373.2

372.2

371.1

370.1

369.3

368.7

369.3

370.1

370.5

371.0

371.7

373.4

376.5

377.9

379.1

380.3

381.5

382.4

383.3

384.1

384.8

385.5

386.6

387.8

391.1

391.0

392.0

393.4

Nor.

396.1

397.0

398.0

398.7

399.3

400.7

402.3

403.2

404.4

405.1

406.0

406.5

407.3

407.8

407.3

406.9

406.2

404.9

404.2

403.5

402.6

401.6

400.7

399.8

398.7

398.0

397.3

396.4

395.7

394.8

-

Dec.

394.8

394.0

393.2

392.0

391.3

390.4

389.6

388.9

388.2

387.3

386.2

385.4

384.3

383.6

382.6

382.0

381.9

381.0

380.3

379.3

378.7

378.2

377.2

376.5

375.6

374.9

374.2

373.6

372.7

372.3

372.9

Jan.

374.9

377.2

37S.6

380.8

383.4

386.8

391.8

395.0

397.3

399.3

400.7

402.3

403.5

404.2

405.5

406.7

408.0

409.0

410.7

411.9

412.6

413.5

414.6

415.7

416.6

417.8

418.4

417.5

415.7

414.1

413.7

Feb.

412.5

411.0

410.3

409.9

409.2

408.3

407.3

406-. 4

405.5

404.6

403.7

402.6

401.4

400.7

399.6

398.4

397.7.

397.0

396.1

395.5

394.7

394,0

393.4

394.0

392.5

392.0

391.3

391.0

390.1

-

-

Nar.

389.2

388.5

387.8

386.9

386.2

385.4

384.7

384.0

382.9

382.2

381.7

381.3

381.9

382.0

381.5

381.0

381.5

382.4

384.1

385.5

386.4

388.3

392.9

396.1

398.2

399.4

400.7

401.9

403.5

405.1

406.5

Apr.

408.0

410.1

412.3

413.9

415.7

417.1

418.6

420.9

424.2

426.3

428.2

430.2

432.2

434.6

437.5

441.5

445.0

448.2

450.8

452.6

455.4

460.1

462.7

464.4

466.8

469.9

474.4

477.1

480.9

485.3

Hay

488.2

491.0

494.1

497.6

500.5

503.1

505.8

509.1

5I27T

514.8

516.8

518.8

522.8

525.7

528.7

532.7

537.9

542.4

548.2

551.5

554.6

557.0

560.3

564.2

567.7

570.4

573.5

577.2

582.0

586.8

590.5

June

594.1

597.7

601.7

60S. 8

611.7

616.6

621.6

626.1

630.6

634.1

636.5

637.8

638.2

638.2

637.6

636.1

635.4

635\6

637.2

639.3

641.7

343.9

646.1

648.3

650.1

650.9

650.9

650.9

650.9

650.9

-

July

650.5

650.1

649.4

649.0

648.1

647.2

646.8

647.4

647.9

648.3

649.4

649.8

649.2

649.2

648.5

647.6

646.8

646.1

645.2

644.4

643.5

642.4

641.3

640.2

639.3

638.2

637.4

636.1

635.0

633.9

632.8

Aug.

631.9

630.9

629.6

628.7

627.6

626.3

625.2

623.9

622.6

621.6

620.3

619.0

618.1

616.8

615.8

614.

613.

612.

611.

610.

608.

607.

606.2

605.1

604.0

603.0

601.9

601.1

599.8

598.8

597.9

Sept.

596.2

595.0

593.9

592.9

591.8

591.0

590.1

588.7

587.6

586.6

585.5

584.9

584.3

583.0

581.4

579.7

579.1

579.7

580.5

581.4

581.8

582.6'

582.2

580.9

579.3

577.2

575.3

573.3

571.0

568.9

-

Monthly elevation and contents, water year October 1947 to September 1948

Date

Sept .SO. ...............

Calendar year 1947...

Sept. 30. ...............

Water year 1947-48. . .

Elevation 

(feet)

,460.10

-

471 59

,470.20

-

Contents 

(acre-feet)

377,700

-

569,900

-

Change In contents 

during month 

(acre-feet)

-59,500

-29,000

+191,200
332 FEATHER RIVER BASIN

North Fork Feather River near Prattville, Calif.

Location.- Water-stage recorder and compound rectangular concrete weir, lat. 40°10', long. 

Lociai"Ut>' , in SW-J sec. 28, T. 27 N., R. 8 E., 0.5 mile downstream from Almanor Dam,

5 miles southeast of Prattville, and 9 miles upstream from Butt Creek. Altitude of

gage, about 4,380 feet (from topographic map). 

Drainage area.- 507 square miles. 

Kecords~avaiiable.- March 1914 to September 1948 (tables of daily discharge for July 1921

to September 1936 include water diverted through Almanor-Butt Creek tunnel). June 1905

to March 1914 at site near that of Almanor Dam. 

Average discharge.- 42 years (1905-10, 1911-48) 876 second-feet, including diversion

tnrougn Almanor-Butt Creek tunnel. 

Extremes.- Maximum discharge during year, 1,030 second-feet June 15 (gage height, 4.82

Fe~eTT7 minimum, 3.7 second-feet on many days in January, February, and June. Extremes

do not include diversions through Almanor-Butt Creek tunnel.

1905-48: Maximum discharge, 10,000 second-feet Mar. 19, 1907, before construction

of dam (gage height, 16.3 feet at former site), from rating curve extended above 3,700

second-feet; no flow Apr. 15, 16, 1914, at times during January to April 1919, and on

Apr. 21, 1923. 

Remarks.- Records excellent except those for doubtful or no gage-height record, which are

fair. Flow regulated by Lake Almanor beginning in 1913 (see preceding page). Figures

of monthly discharge show total runoff also. Water is diverted for power from Lake

Almanor through Almanor-Butt Creek tunnel to Butt Creek. 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas and Electric Co.,

obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

42

12

11

11

11

all

a230

a!70

all

all

all

dll

dll

dll

dll

dll

dll

dll

dll

11

11

11

11

11

11

11

11

11

11

11

11

Nov.

11

11

11

11

11

11

11

11

all

all

alO

alO

a9.5

a9.5

a9

a9

a8.5

a8.5

a8

a8

a7.5

7.2

6.3

5.4

5.4

5.9

6.3

6.3

8.1

7.6

-

Dec.

7.6

* 7.6

7.6

7.6

8.1

a8.1

7.6

7.2

7.2

7.2

6.8

6.3

6.3

7.6

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

6.8

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

Month

October. ...............

November. ..............

December. ..............

Calendar year 1947 . .

January. ...............

February. ..............

March. .................

April ..................

May. ...................

June ...................

July. ..................

August .................

September. .............

Water year 1947-48 . .

Jan.

4.2

4.2

4.2

4.2

4.6

5.4

5.4

5.3

5.9

5.4

5.0

4.6

4.6

4.2

4.2

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3

44

55

21

1

5

E

3

12

Secondfoot-days

751

266.0

218.4

49,845.8

1,372.1

2,422.4

133 . 8

178.3

137.0

4,549.4

586.8

1,956.4

5,946

18,517.6

Feb.

158

266

220

220

220

77

5.0

5.0

alOO

a!20

a60

allO

a5

8.180

307

247

74

4.2

3.7

3.7

3.7

3.7

4.2

4.2

4.2

4.2

4.2

4.2

4.2

_

-

Mar.

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.6

.6

.6

.6

.6

.6

.6

.2

.2

.2

.2

.2

.6

.6

Apr.

4.6

4.6

5.0

5.0

5.0

5.4

5.4

5.9

5.9

5.9

5.9

6.8

7.2

7.2

8.1

7.6

6.3

6.3

6.3

5.9

6.3

6.3

5.9

5.9

5.9

5.9

5.9

5.9

5.0

5.0

-

May

5.0

5.0

5.0

5.0

5.0

5.0

5.0

4.6

4.6

4.6

4,2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

Observed

Maximum

230

11

9.0

976

552

307

4.6

8.1

5.0

1,020

88

146

569

1,020

Minimum Mean

11 24.2

5.4 8.87

4.6 7.05

3.8 137

3.7 44.3

3.7 83.5

4.2 4.32

4.6 5.94

4.2 4.42

3.7 152

4.2 18.9

9.4 63.1

30 198

3.7 50.6

acre-feet

1,490

528

433

98,870

2,720

4,800

265

354

272

9,020

1,160

3,880

11,790

36,710

June

4.2

4.2

4.2

4.2

4.2

4.2

a4.2

a4.2

a4.2

4.2

58

314

552

728

944

1,020

679

164

3.7

3.7

3.7

3.7

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

Diversion

(acrefeet)t

19,690

29,760

51,890

378,700

7,530

52,700

28,670

1,540

1,790

28,790

51,850

58,100

43,030

375,300

July

.2

.2

.2

.2

.2

.2

.2

.2

a .2

a .2

a .2

a .2

a .2

.2

.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

27

84

84

62

23

13

37

88

42

Aug.

42

67

78

47

a60

a95

a90

a50

a80

a90

37

9.4

43

111

68

46

46

44

44

44

66

91

48

47

47

47

46

46

67

146

114

Sept.

55

55

55

55

55

54

54

54

a70

a60

a 50

a 50

a80

a80

a 50

a30

allO

2QO

200

203

205

294

415

415

415

415

460

569

569

569

-

Adjusted for

diversion

 an Runoff in 

Ke acre-feet

344 21,180

509 30,290

851 52,320

660 477,600

167 10,250

1,000 57,500

470 28,940

31.9 1,890

33.5 2,060

635 37,810

862 53,010

1,008 61,980

921 54,820

563 412,000

t Diversion through Almanor-Butt creek tunnel, computed as difference in flow between the two

tations on Butt Creek.. There is some unmeasured inflow between the two stations, 

a No gage-height record; discharge computed on basis of range in stage or records of release from 

Lake .Almanor.

d Doubtful gage-height ecord; discharge interpolated.
FEATHER RIVER BASIN 333

North Fork Feather River at Big Bar, Calif.

Location.- Water-stage recorder, lat. 39°48 I , long. 121°27', in NE£ sec. 6, T. 22 N., R.

b tt., between railroad and highway bridges, 0.2 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 1948. February 1911 to August 1930 and

uctooer 1931 to September 1937 at site 0.8 mile upstream. 

Average discharge.- 32 years (1911-12, 1913-20, 1921-30, 1931-37, 1939-48), 2,680 secondreet. 

Extremes.- Maximum discharge during year, 15,100 second-feet Apr. 17 (gage height, 13.55

reet); minimum, 504 second-feet Dec. 25.

1911-37, 1939-48: Maximum discharge, 66,900 second-feet Dec. 11, 1937 (gage height,

29.7 feet at present s'ite, from floodmarks), from rating curve extended above 34,000

second-feet by logarithmic plotting; minimum daily, 235 second-feet Oct. 31, 1932. 

Remarks.- Records good except those for periods of no gage-height record, which are fair.

Flow regulated by Lake Almanor (see p. 331).Bucks Creek Reservoir (see p. 340), Butt

Valley Reservoir, power plants, and diversions. 

Cooperation.- Water-stage recorder graph furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project. 

Revisions (water years).- W 931: 1940.

Hating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.7 558 3.5 1,330 6.O 3,260 9.5 7,800 

2.1 696 4.0 1,650 6.5 3,780 11.0 10,300 

2.4 808 4.5 2,000 7.0 4,33O 12.0 12,100 

2.7 930 5.0 2,380 7.5 4,930 13.0 14.OOO 

3.0 1,060 5.5 2,790 8.5 6,280

Discharge, in second-feet, water year October 1947 to Septenberl948

Day

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

1,460 

1,260 

1,240 

1,080 

808

1,090 

1,280 

1,570 

1,350 

1,320

802 

646 

948 

1,060 

939

4,530 

1,480 

793 

624 

1,170

1,070 

1,080 

1,300 

1,150 

923

755 

1,200 

1,460 

2,260 

1,770 

1,370

Nov.

1,770 

1,440 

1,460 

1,810 

1,670

1,550 

1,500 

920 

823 

1,260

872 

1,360 

1,610 

1,520 

1,200

830 

1,390 

1,450 

1,470 

1,500

1,440 

1,140 

876 

1,370 

1,370

1,400 

800 

1,100 

974 

735

Dec.

1,310 

1,260 

1,360 

1,500 

1,430

1,340 

973 

1,330 

1,550 

1,560

1,560 

1,430 

1,390 

960 

1,230

1,540 

1,600 

1,590 

1,580 

1,560

1,160 

1,640 

1,610 

1,400 

584

1,080 

1,100 

885 

1,210 

1,600 

1,500

Jan.

1,190 

1,990 

2,110 

3,420 

6,560

4,980 

8,880 

7,580 

4,250 

3,030

2,160 

2,160 

3,000 

1,800 

1,810

1,760 

1,430 

1,130 

al,400 

al,800

al,700 

al,750 

al,750 

al,600 

al,250

al,550 

1,610 

1,810 

2,170 

2,040 

1,550

Feb.

1,600 

2,050 

2,150 

2,140 

2,110

2,030 

1,850 

1,540 

1,870 

1,970

al,850 

a2,000 

al,850 

al,750 

a2,000

a2,100 

2,160 

1,990 

2,000 

1,920

1,520 

1,720 

al,450 

al,850 

a2,100

a2,050 

a2,000 

a2,100 

al,900

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

nber. ..................................

Bber. ..................................

lendar year 1947 ......................

ary

h.. ....................................

1. .....................................

ember. ....... .........................

ter year 1947-48 ......................

Mar.

al,750 

al,900 

a2,000 

al,900 

al,900

al,900 

al,400 

al,600 

al,600 

1,440

1,510 

1,580 

1,350 

1,070 

1,030

1,010 

934 

909 

952 

884

828 

848 

3,480 

4,770 

3,270

2,520 

2,190 

2,130 

2,160 

2,500 

2,560

Apr.

2, 

2, 

3, 

2, 

a2,

a2, 

2, 

2, 

5,

6,

5, 

4, 

4, 

5, 

9,

9, 

13, 

9, 

9, 

8,

7, 

7, 

7, 

7, 

6,

6, 

6, 

6, 

6, 

6,

Seoondfoot-days

39,788 

38,610 

41,832

662,124

80,220 

55,620 

55,875 

181,560 

151,150 

106,2,00 

55,260 

48,980 

47,320

902,405

Peak discharge (base, 9,200 sec. -ft.).- Jan. 7 (4:30

600 

900 

260 

920 

800

800 

500 

450 

630 

580

270 

580 

090 

230 

080

760 

800 

940 

020 

200

120 

980 

820 

000 

270

450 

450 

820 

240

000

May

5,330 

4,860 

4,890 

4,850 

5,290

5,990 

6,380 

5,420 

4,760 

4,650

4,570 

4,700 

5,060 

5,010 

4,82.0

4,910 

6,270 

5,450 

4,970 

4,810

4,550 

3,870 

4,090 

4,790 

5,000

4,960 

4,770 

4,250 

3,780 

4,220 

3,890

Maximum

4,530

1,810 

1,640

11,900

8,880 

2,160 

4,770 

13,800 

6,380 

5,090 

2,230 

1,700 

1,940

13^800

June

3,800 

4,000 

3,990 

3,910 

4,310

4,100 

4,140 

4,400 

5,090 

4,590

4,580 

4,450 

4,590 

4,610 

4,750

4,630 

4,330 

3,690 

3,090 

2,910

2,920 

3,250 

2,160 

2,150 

2,130

1,940 

1,800 

2,270 

2,340 

2,280

Minimum

624 

735 

584

584

1,130 

1,450 

828 

2,450 

3,780 

1,800 

1,610 

1,470 

1,400

584

July

2,230 

2,160 

2,030 

1,960 

1,930

3,000 

3,060 

1,980 

1,760 

1,650

1,710 

1,820 

1,760 

1,800 

1,760

1,730 

1,710 

1,680 

1,650 

1,690

1,620 

1,680 

1,670 

1,680 

1,670

1,640 

1,610 

1,640 

1,630 

1,670 

1,690

Aug.

1,600 

1,660 

1,700 

1,670 

1,620

1,640 

1,640 

1,600 

1,560 

1,640

1,570 

1,480 

1,470 

1,550 

1,620

1,540 

1,560 

1,580 

1,550 

1,570

1,560 

1,570 

1,590 

1,550 

1,540

1,560 

1,550 

1,520 

1,510 

1,550 

1,660

Mean

1,283 

1,387 

1,349

1,814

2,588 

1,918 

1,802 

6,052 

4,876 

3,540 

1,783 

1,580 

1,577

2,466

D.m. 14,700 sec. -ft.; Apr. 17 (l

Sept.

1,520 

1,530 

1,510 

1,510 

1,500

1,490 

1,470 

1,490 

1,500 

1.520

1,500 

1,490 

1,500 

al,550 

al,550

al,550 

al,450 

al,400 

1,570 

al.500

al,600 

al,550 

al,700 

al,700 

al,650

al,650 

al,65tD 

al,850 

1,940 

1,940

Runoff in 

acre feet

78,920 

76,580 

82,950

1, 313,000

159,100 

110,300 

110,800 

360,100 

299,800 

210,600 

109,600 

97,150 

93,860

1,790,000

p.m.)

15,100 sec.-ft.

a No gage-height record; discharge 'computed on basis of ^ecords at Big Bend powerhouse.
FEATHER RIVER BASIN

Feather River near Oroville, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 121°29', in NE£ sec. 2, T. 19 N., R. 

4 E., 75 feet upstream from bridge on Feather River Highway, 2 miles downstream from 

confluence of North and Middle Forks, and 3 miles northeast of Oroville. Datum of 

gage is 182.02 feet above mean sea level, datum of 1929.

Drainage area.- 3,611 square'miles.

Records ayalJLable. - October 1934 'to September 1948. Januarv 1902 to September 1934 at 

site at Oroville; 5 miles downstream.

Average discharge.- 46 years, 5,787 second-feet.

extremes.- Maximum discharge during year, 36,700 second-feet Jan. 7 (gage height, 38.2 

feet); minimum, 753 second-feet Dee. 14 (gage height, 4.56 feet).

1902-34 at Oroville: Maximum discharge observed, 230,000 second-feet Mar. 19, 1907 

(gage height, 28.2 feet, reading on U. S. Weather Bureau staff gage at bridge, equivalent to 39.3 feet at staff gage at cable 1,000 feet upstream; probably had been higher 

during night); minimum, 300 second-feet (estimated) Nov. 9, 1931 (gage height, -1.7 

feet).

1934-48 near Oroville: Maximum discharge, 185,000 second-feet Dec. 11, 1937 (gage 

height, 73.6 feet, from floodmarks), from gating curve extended above 62,000 secondfeet on basis of velocity-area studies and verif iecfby slope-area computation; minimum, 

462 second-feet Dee. 10, 1934 (gage height, 3.55 feet).

Remarks.- Records excellent. Flow partly regulated by power plants and'Lake Almanor (see 

p. atu), Bucks (see p.340j, Butt Valley, and smaller reservoirs.

Revisions (water years).- W 881: 1913-38 (published in summary only).

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

5.2 970 6.8 1,650 13.0 5,370 26. 0 17,700 

5.5 1,080 7.1 1,790 16.0 7,620 30.0 22,900 

5.8 1,200 8.0 2,250 18. 0 9,300 33.0 27,3OO 

6.2 1,380 9.0 2,820 20.0 11,200 36.0 32,400 

6.5 1,520 11.0 4,060 23.0 14,3OO

Discharge. In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,620 

1,400 

1,450 

1,280 

984

1,270 

1,500 

1,820 

1,780 

1,980

1,780 

1,180 

1,370 

1,490 

1,310

7,520 

3,810 

1,710 

1,160 

1,650

1(960 

1,780 

1,780 

1,650 

l',360

1,080 

1,480 

1,750 

3,290 

4,300 

2,470

Nov.

3,330 

3,490 

2,620 

2,600 

2,990

2,550 

2,190 

1,620 

1,450 

1,800

1,420 

1,760 

2,000 

1,930 

1.720

1,280 

1,780 

1,760 

1,880 

1,880

1,830 

1,600 

1,370 

1,610 

1,820

1,700

1,180 

1,520 

1,320

1,090

Dec.

1,590 

1,680 

1,610 

1,870

i;870

1,800 

1,400 

1,630 

1,970 

1,960

1,930 

1,800 

1,830 

1,360 

1,490

1,910 

2,040 

2,060 

1,980 

1,920

1,630 

2,220 

2,160 

1,870 

993

1,430 

1,510 

1,310 

1,540 

2,000 

1,890

Jan.

1,580 

5,950 

5,920 

9,220 

17,500

12,200 

21,000 

20,300 

10,800 

7,280

5,890 

5,070 

4,550 

4,000 

3,770

3,550 

3,090 

2,660 

2,700 

2,990

2,810 

2,790 

2,720 

2,510 

2,240

2,330 

2,400 

2,480 

2,780 

2,830 

2,370

Feb.

2,270 

2,670 

2,780 

2,930 

2,900

2,850 

2,570 

2,220 

2,590 

2,770

2,480 

2,600 

2,460 

2,400 

2,640

2,930 

3,050 

2,900 

2,870 

2,810

2,320 

2,700 

2,600 

2,920 

2,980

2,870 

2,860 

3,040 

2,800

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

_Sept

ffa

nber. ...................................

lendar year 1947 ......................

ary

h.. ....................................

1. ........................ .............

ember ..................................

ter year 1947-48 ......................

Mar.

2,530 

2,680 

2,750 

2,650 

2,590

2,560 

2,150 

2,340 

2,330 

2,180

2,200 

2,270 

3,260 

3,420 

2,540

2,820 

2,920 

2,480 

3,090 

2,520

2,280 

2,210 

8,260 

13,800 

8,430

5,800 

5,000 

4,780 

4,620 

5,150 

5,470

Apr.

5,470 

6,220 

7,960 

7,290 

6,730

6,410 

5,750 

5,580

15,100 

17,900

13,600 

11,100 

9,630 

10,600 

18,200

19,800 

31,100 

25,100 

19,600 

17,600

16,400 

18,200 

17,200 

15,000 

13,800

13,700 

13,900 

15,000 

14,300 

14,200

Secondfoot-days

60,964 

57,090 

54,253

1,105,877

178,280 

78,780 

118,080 

412,440 

345,390 

207,230 

75,710 

57,030 

53,030

1,698,277

Peak discharge (base, 16,800 see. -ft.).- Jan. 5 (2:30

May

12,600 

11,300 

10,900 

10,800 

11,600

13,300 

14,700 

12,600 

11,000 

10,200

10,000 

10,200 

10,800 

11,600 

11,000

11,400 

13,600 

12,800

11,300 

10,700

9,980 

8,710 

9,080 

10,400 

11,500

11,800 

11,800 

10,600 

8,910 

10,500 

9,710

Maximum

7,520 

3,490 

2,220

29,200

21,000 

3,050 

13,800 

31,100 

14,700 

10,200 

3,550 

1,980 

2,160

31,100

June

8,900 

9,270 

9,800 

9,360

10,200

9,27O 

9,280 

9,080 

9,980

9,300

8,610 

8,330 

8,OOO 

7,830 

7,760

7,440 

7,080 

6,310 

5,640 

5,290

5,250 

4,520 

4,330 

4,020 

3,970

3,830 

3,530 

3,490 

3,880 

3,680

Minimum

984 

1,090 

993

984

1,580 

2,220 

2,150 

5,470 

8,710 

3,490 

1,980 

1,750 

1,600

984

July

3,550 

3,440 

3,220 

3,060 

2,820

2,950 

2,960 

2,850 

2,740 

2,370

2,370 

2,440 

2,370 

2,350 

2,320

2,280 

2,250 

2,200 

2,150 

2,140

2,120 

2,130 

2,140 

2,120 

2,110

2,100 

2,120 

2,060 

2,010 

1,990 

1,980

Aug.

1,980 

1,940 

1,950 

1,950 

1,920

1,910

1,900 

1,910 

1,900 

1,880

1,860 

1,850 

1,840 

1,840 

1,810

1,800 

1,810 

IjSOO 

1,800 

1,800

1,790 

1,790 

1,800 

1,800 

1,790

1,780 

1,770 

1,760 

1,790 

1,760 

1,750

Mean

1,967

1,903 

1,750

3,030

5,751 

2,717 

3,809 

13,750 

11,140 

'6,908 

2,442 

1,840 

1,768

4,640

p.m.) 18,700 sec. -ft.; Jan. 7 (6:

Sept.

-1,760 

1,720 

1,730 

1,700 

1,700

1,690 

1,690 

1,680 

1,700 

1,700

1,660 

1,660 

1,650 

1,650 

1,650

1,680 

1,660 

1,600 

1,680 

1,710

1,740 

fl,680 

fl,790 

fl,860 

fl,930

fl,960 

f2,160 

2,020 

2,O8O 

2,140

Runoff in 

acre-feet

120,900 

113,200 

107,600

2,193,000

353,600 

156,300 

234,200 

818,100 

685,100 

411,000 

150,200 

113,100 

105,200

3,368,000

30 p.m.)

(1 p.m.) 32,900 3 ec.-ft. 

f Computed on basis of partly estimated gage-height record.
FEATHER RIVER BASIN 335

Feather River at Nicolaus, Calif.

Location.- Water-stage recorder, lat. 38°54 I 00", long. 121°35'05", at Nicolaus, Sutter 

county, 0.4 mile downstream from highway bridge. Zero of gage is set to datum of Corps 

of Engineers.

Records available.- June 1921 to December 1942 (low-water periods only) and April 1943 

to September 1948 in reports of Geological Survey. 1939-48 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 42,000 second-feet Apr. 19 (gage height, 41.11 

reet); minimum, 225 second-feet Aug. 21 (gage height, 20.25 feet).

1943-48: Maximum discharge, 94,000 second-feet Dec. 30, 1945 (gage height, 45.23 

feet).

1921-48: Minimum discharge, no flow Aug. 2-18, 1924, July 11-22, 24, 26, Aug. 1, 

1931.

Remarks.- Records good except those for periods of backwater or no gage-height record, 

which are fair. Flow partly regulated by reservoirs and power plants. Many diversions 

above station for irrigation. See "Remarks" for Feather River near Oroville.

Cooperation.- Records collected and prepared in cooperation with Division of Water. Resources, Department of Public Works, State of California.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6. 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

1,400 

1,460 

1,320 

1,190 

1,160

1,070 

866 

1,160 

1,530 

1,700

1,860 

1,980 

1,440 

1,360 

1,470

1,510 

4,840 

a4,700 

a3,100 

a2,500

a2 , 400 

a2,700 

a2,700 

a2,600 

a2,500

a2,300 

a2,000 

a2,200 

a2,700 

a3,800 

4,850

Nov.

3,400 

3,890 

4,550 

3,550 

3,270

3,640 

3,350 

3,040 

2,610 

2,250

2,230 

2,280 

2,220 

2,590 

2,680

2,420 

2,050 

2,170 

2,440 

2,540

2,580 

2,560 

2,280 

2,000 

2,060

2,430 

2,400 

2,110 

1,870 

1,930

Dec.

1,780 

1,830 

2,250 

2,220 

2,500

2,590 

2,360 

2,080 

2,100 

2,590

2,660 

2,460 

2,360 

2,180 

1,880

1,820 

2,250 

2,600 

2,770 

2,840

2,920 

2,750 

2,810 

2,920 

2,680

2,030 

1,760 

2,000 

1,930 

1,920 

2,480

Jan.

2,500 

2,240 

5,920 

7,240 

10,400

17,600 

17,100 

23,000 

27,800 

22,600

15,900 

11,400 

8,860 

7,560 

6,680

6,110 

6,010 

5,610 

5,110 

4,600

4,720 

4,580 

4,510 

4,460 

4,260

4,020 

3,940 

3,970 

3,970 

4,240 

4,280

Feb.

,820 

,570 

,04O 

,240 

,640

,880 

,980 

,690 

,34p 

,980

,060 

,500 

,320 

,170 

,990

,070 

,330 

,340 

,200 

,160

,070 

,810 

,990 

,150 

,240

,300 

,210 

,230 

,330

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hay.

June 

July 

Augu 

Sept

Wa

ber. ...................................

nber. ..................................

lendar year 1947 ......................

ary

h. .....................................

1. .....................................

St. ....................................

ember. .................................

ter year 1947-4S ......................

Peak discharge (base, 20,000 sec. -ft.).- Ji

sec. -ft.; Apr. 11 (3 p.m.) 27,800 sec. -ft.; 1

liar.

4,140 

3,890 

3,850 

3,840 

3,750

3,670 

3,620 

3,390 

3,350 

3,400

3,210 

3,230 

3,460 

4,990 

5,990

5,430 

6,380 

6,460 

5,510 

5,890

4,970 

4,360 

4,080 

11,400 

20,500

16,900 

=12 , 000 

c9,300 

c8,500 

8,400 

8,520

Apr.

8,780 

8,720 

10,500 

13,000 

14,100

13,600 

12 , 600 

10,900 

11,400 

21,600

27,500 

25,300 

21,300 

18,000 

17,200

21,300 

27,000 

38,500 

40,200 

34,300

33,800 

29,000 

29,800 

29,300 

27,100

25,200 

24,100 

24,200 

24,800 

25,200

Secondfoot-days

68,366 

79,440 

72,320

1,344,427

261,190 

124,650 

196,430 

668,300 

550,000 

297,560 

37,105 

8,153 

23,287

2,386,801

in. 9 (10 a. 

Vpr. 19 (4 a

May

c23,500 

C21.200 

c!9,600 

c!7,800 

c!7,600

C18.600 

C20.200 

c22-,500 

c21,000 

c 18, 000

c 16, 400 

C15.700 

c!5,600 

c!6,600 

c!7,800

18,000 

18,300 

19,600 

19,400 

18,100

17,200 

15,700 

14,000 

14,300 

15,900

17,200 

18,000 

17,600 

15,600 

13,800 

15,200

Maximum

4,850 

4,550 

2,920

33,100

27,800 

5,060 

20,500 

40,200 

23,500 

15,400 

3,030 

' 312 

1,760

40,200

June

14,600 

13,500 

14,400 

15,300 

15,400

14,900 

13,900 

14,500 

14,600 

15,200

14,500 

13,100 

12,500 

11,400 

10,800

10,100 

9,340 

8,470 

,720 

,120

,760 

,360 

,600 

,910 

,460

,080 

,020 

,640 

,190 

,190

Minimum

866 

1,870 

1,760

158

2,240 

3,570 

3,210 

8,720 

13,800 

3,190 

312 

233 

254

233

July

3,030 

2,790 

2,720 

2,590 

2,330

2,020 

1,850 

1,860 

1,720 

1,490

1,370 

1,210 

1,160 

1,090 

986

937 

895 

797 

727 

624

570 

540 

504 

486 

470

470 

465 

400 

362 

330 

312

Aug.

312 

30S 

281 

250 

254

263 

268 

286. 

299 

299

272 

245 

237 

245 

245

272 

272 

245 

241 

237

233 

237 

245 

237 

237

237 

254 

263 

308 

308 

263

Sept.

268 

268 

276 

281 

254

254 

286 

290 

308 

326

344 

312 

294 

299 

344

380 

420 

666 

832 

965

1,190 

1,42P 

1,500 

1,620 

1,690

1,560 

1,560 

1..640 

1.6SO 

1,760

Mean Runo" ln 

acre-feet

2,205 135,600 

2,648 157,600 

2,333 143,400

3,683 2,666,000

8,425 518,100 

4,298 247,200 

6,336 339,600 

22,280 1,326,000 

17,740 1,091,000 

9,919 590,200 

1,197 73,600 

263 16,170 

776 46,190

6,521 4,735,000

m.) 28,400 sec. -ft.; Mar. 25 (ll a.m.) 21,200 

.m.) 42,000 sec. -ft.

a No gage-height record; dis-charge computed on basis of records for nearby streams, 

c Backwater from Sacramento River; discharge computed on basis "f 1 discharge measurement and unpublished records at Shanghai Bend.
336 FEATHER RIVER BASIN

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif.

Location.- Water-stage recorder, lat. 40°12', long. 121°12', in NW£ sec. 16, T. 27 N., 

HT~T~E., 1.2 miles upstream from outlet of tunnel from Lake Almanor to Butt Creek and 

2.5 miles southwest of Prattville. Altitude of gage, about 4,300 feet (from topographic map).

Drainage area.- 64.3 square miles.

Records available.- October 1936 to September 1937, October 1938 to September 1948-.

Average discharge.- 11 years (1936-37, 1938-48), 65.4 second-feet.

Extremes.- Maximum discharge during year, 468 second-feet Jan. 7 (gage height, 4.55 feet); 

minimum, 10 second-feet Dec. 30.

1936-37, 1938-48: Maximum discharge, 1,500 second-feet Feb. 28, 1940 (gage height, 

5.75 feet); minimum, 3.2 second-feet Dec. 11, 1936.

Remarks.- Records good except those for Feb. 1 to Apr. 20, which are fair. No storage 

aDove station. Wallack ditch, above station, occasionally diverts several second-feet 

into Yellow Creek Basin.

Cooperation.- Water-stage recorder graph, furnished by the Pacific Gas & Electric Co., obtained in connection with a Federal, Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

b

6

7

8

10

11

12

13

14

16

18

21

26

- Oct.

15

15

15

15

16

16

19

22

19

30

24

20

19

18

22

86

32

24

22

26

31

25

23

22

22

22

21

23

43

40

30

Novi

60

39

30

33

31

27

26

26

25

24

24

24

23

24

25

25

24

24

23

22

22

20

22

23

22

22

23

24

24

24

-

Dec.

24

24

23

23

23

22

22

22

20

20

23

21

21

22

22

22

23

22

22

23

24

24

23

22

22

22

22

26

22

20

23

Jan.

24

52

44

79

126

110

248

161

88

67

54

48

44

40

39

37

36

36

34

33

3S

33

33

33

32

25

27

30

30

30

30

Feb.

30

26

25

25

29

29

24

27

30

27

24

24

27

28

32

35

34

34

33

31

32

49

35

31

31

31

30

30

29

-

-

Month

December. ...................................

Calendar year 1947 ......................

May........................................

September. .................................

Water year 1947-48 ......................

Mar.

29

29

28

27

27

27

26

27

27

27

26

26

27

27

26

27

27

26

26

25

27

30

24

21

34

36

38

36

36

46

50

Apr.

55

61

50

44

42

41

39

29

77

71

61

60

61

alSO

a340

a290

&330

a290

a260

a260

270

250

197

181

207

193

181

272

203

176

Second 

foot-days

777

785

694

13X72

1,736

872

915

4,751

5,993

3,628

1,078

763

652

22,644

May

164

158

168

191

230

272

267

205

181

172

176

181

201

199

195

211

258

230

191

177

149

140

155

183

207

220

216

193

168

179

156

Maximum

86

60

26

290

248

49

50

340

2T2

3B5

47

2&

24

340

June

153

168

177

202

325

233

209

201

203

160

142

129

117

107

99

92

87

84

78

77

75

68

66

63

60

56

52

50

48

47

-

Minimum

15

20

20

13

24

24

21

39

140

47

29

22

L 20

15

July

47

44

43

43

42

42

42

40

38

37

37

36

35

3* ,

34L

33

32

32

29

29

30

29

30

31

30

30

31

30

30

29

29

Aug.

29

28

26

25

24

24

24

25

25

24

25

25

24

25

24

24

24

25

25

25

25

2425 '

25

25

24

24

23

23

23

22

Mean

25.1

26.2

22.4

36.9

56.0

30.1

29.5

158

193

121

34.8

24.6

21:7

61.9

Sept.

22

22

22

22

21

21

21

21

21

20

20

20

20

20

20

20

23

23

24

22

21

21

22

22

24

24

24

23

23

23

-

Runoff in 

acre-feet

1,540

1,560

1,380

26,720

3,440

1^730 l.ftio

~5,42T5

11,890

7,200

2,140

"1,510

1,290

44,910

Peak discharge (base, 22O sec.-ft.L- Jan. 7 (7 p.m.) 468 sec.-ft.; Apr. 15 (time unknown) 365 sec 

ft.; May 6 (10 p.m.) 339 sec.-ft.; Hay 17 (lo p.m.) 277 sec.-ft.,- May 26 (ll p.m.) 258 see.-ft.: 

June 5 (1:30 a.m.) 436 sec.-ft.

a No gage-height record; discharge computed on basis of record below tunnel.
FEATHER RIVER BASIN 337

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif.

Location.- Water-stage recorder and concrete control, lat. 40°10 I , long. 121°11', in NV£ 

sec. 22, T. 27 N., R. 7 E., 400 feet downstream from outlet of tunnel from Lake Almanor 

to Butt Creek and 3 miles southwest of Prattville. Altitude of gage, about 4,200 feet 

(from topographic map).

Drainage area.- 67.3 square miles.

Records available.- October 1938 to September 1948.

Average discharge.- 10 years, 706 second-feet.

Extremes.- Maximum discharge during year, 1,120 second-feet June 9 (gage height, 3.12 

reet); minimum, 34 second-feet Mar. 24.

1938-48: Maximum discharge, 2,170 second-feet Mar. 30, 1940 (gage height, 4.37 

feet); minimum, that of Mar. 24, 1948.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. Difference in flow at this station and at station above tunnel (see preceding 

page) shows amount of diversion from Lake Almanor to Butt Creek and Butt Valley Reservoir, plus natural local inflow from 3 square miles of intervening drainage area.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

0.5 38 1.1 144 Z.4 665

.6 50 1.4 ZZ8

.7 64 1.7 33E

2.8 905

3.2 1,180

.9 100 Z.O 464

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

912

912

912

912

912

912

924

924

924

918

104

76

72

71

76

149

92

81

76

78

89

78

76

60

44

45

46

44

66

67

51

NOT.

79

72

56

49

48

48

48

48

46

45

44

44

43

493

950

91Z

91Z

912

912

91Z

912

905

912

905

91Z

91Z

912

912

918

918

-

Dec.

912

91Z

905

898

898

898

898

905

905

898

905

905

905

898

898

898

905

912

905

905

905

912

912

912

912

912

912

91Z

905

550

48

Jem.

49

81

72

100

157

137

256

192

108

90

76

69

64

60

57

56

56

54

51

50

51

51

53

53

51

45

46

527

938

938

944

Feb.

944

944

950

944

957

944

938

944

944

944

931

a 940

a 940

944

950

950

950

950

950

950

950

970

957

950

944

944

944

938

938

_

-

Month

October ....................................

November . ..................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April.. ....................................

Ha? ."* 

June .......................................

July. .......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

944

938

938

931

938

931

931

938

931

931

924

924

924

924

924

561

60

53

48

44

48

50

44

40

56

60

61

61

61

72

78

Apr.

87

92

81

76

71

69

67

69

121

allo

aloo

Secondfoot-days

10,703

15,791

26,857

204 404

5 532

27 443

15^368

5 529

6^893

18,142

27 219

30^055

22 * 348

211,880

aloo

llOO

1180

371

308

371

305

275

272

286

265

219

195

225

210

198

286

225

195

"

May

181

176

187

207

238

286

297

231

213

198

204

210

235

235

225

251

293

268

228

216

187

178

192

216

238

251

244

219

198

207

184

Maximum

924

950

912

1,020

944

970

944

371

297

1,110

998

977

964

1,110

June

176

187

195

208

327

244

225

216

727

1,110

1,090

1,070

1,060

1,050

1,050

1,040

1,030

871

132

126

123

113

108

102

600

998

991

998

991

984

-

Minimum

44

43

48

43

45

936

40

67

176

102

81

964

50

40

July

991

991

998

998

998

998

702

495

783

87

81

513

970

977

970

977

977

977

977

984

984

984

984

984

977

977

977

977

977

977

977

Aug.

977

c

c

i

77

77

70

970

970 i

c

c

70

70

70

970

970

c

I

£

70

64

70

970

970

S

c

c

70

70

70

970

970

c

c

c

70

70

70

970

970

9

9

9

9

64

64

64

64

a964

Mean

345

526

866

560

178

946

496

184

222

605

878

970

745

579

Sept.

964

964

964

964

964

964

964

964

964

964

964

964

964

964

964

964

557

69

67

64

56

50

50

a250

a960

a960

a960

a960

957

964

-

Runoff in 

acre feet

21,230

31,320

53,270

405,400

10,970

54,430

30,480

10,970

13,670

35,980

53,990

59,610

44,330

420,300

a No gage-height record; discharge computed on basis of records for station above tunnel and for 

gate operation.
FEATHER RIVER BASIN

Indian Creek near Crescent Mills, Calif.

Location.- Water-stage recorder, lat. 40°05', long. 120°56', In SWv sec. 25, T. 26 N., R. 

9 E., 0.8 mile upstream from Dixie Creek and 1.5 miles south of town of Crescent Mills. 

Altitude of gage, about 3,500 feet (from topographic map).

Drainage area.- 746 square miles.

Records available.- October 1930 to September 1948. January 1906 to December 1909 and 

September iyjll to March 1918 at site 800 feet upstream.

Average discharge.- 27 years (1906-9, 1911-17, 1930--48), 513-second-feet.

Extremes.- Maximum discharge during year, 4,330 second-feet Apr. 18 (gaga height, 9.73 

feet); minimum, 3.6 second-feet Aug. 15.

1906-9, 1911-18, 1930-48: . Maximum discharge, 14,000 second-feet Feb. 28, 1940 

(gage height, 16.07 feet), from rating curve extended above 4,000 second-feet by 

logarithmic plotting; minimum, 1.7 second-feet Aug. 25, 1931.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Diversions above station for irrigation in Indiana and Genesee valleys.

Rating table, water year 1947-48 (gage height, in feet,

and discharge in second-feet) 

(Backwater corrections applied Oct. 1 to Jan. 2)

2.7

3.8

5.7

8.6

12

20

2.0 

2.2 

2.4 

2.6 

2.8

102

128

3.1 

3.5 

4.0 

4.4 

4.8 

5.2

172

239

350

470

615

800

6.0 

6.5 

7.0 

8.0 

9.3

l.OOO 

1,220 

1,530 

1,900 

2,720 

3.9OO

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

15

16

20

21

23

26

27

28

29

30

31

Oct.

8.3

16

10

8.9

8.0

9.2

11

13

15

27

38

34

31

27

30

84

66

58

62

65

74

62

58

55

52

51

52

53

77

92

84

Nov.

84

92

88

90

107

97

87

80

76

72

70

70

65

64

65

68

68

66

65

65

61

58

53

54

60

62

62

63

64

64

"

Dec.

65

64

64

67

65

61

60

62

62

57

GO

61

57

60

63

62

64

66

66

66

67

68

67

66

63

63

62

65

66

61

53

Jan.

63

176

172

234

390

332

552

851

694

460

310

a210

also

also

a!40

a!30

a!25

a!20

alls

allo

alOS

a!07

alOS

a!04

a!03

96

89

89

94

97

95

Feb.

98

101

89

90

97

100

94

92

102

104

91

82

84

98

131

149

136

135

134

132

128

135

156

139

124

121

120

127

124

-

-

Month

December ...................................

Calendar year 1947 .................

March. ................................. .

April. .....................................

May........................................

July. ......................................

September ..................................

Water year 1947-48 ......................

Mar.

121

118

113

106

104

104

103

106

114

108

106

103

124

153

142

129

131

124

132

127

120

118

310

642

669

484

420

420

420

444

491

Apr.

498

526

591

572

564

620

540

498

820

1,230

,330

.,130

995

,020

,490

,200

,570

,860

,590

,940

,670

,700

,720

,560

,440

,380

,440

,450

,410

,340

-

Secondfcot-days

1,953

72,307.0

317.8

108,390.6

May

1,190

1,070

955

915

945

1,060

t-,230

1,240

1,080

930

830

785

775

820

820

820

875

890

855

825

800

755

723

741

805

875

915

875

785

760

765

Maximum

68

3,880

851

16

3,860

June

732

696

696

692

775

915

940

870

830

820

746

669

595

540

498

432

390

345

314

291

293

270

239

182

159

153

153

131

118

135

Minimum

53

3.8

723

5.1

3.6

July

134

113

102

98

94

90

90

87

74

59

54

49

45

40

34

34

32

30

28

24

22

19

18

19

19

18

18

17

16

16

16

Aug.

15

14

14

14

12

12

12 .

11

11

11

9.9

9.6

9.2

5.7

3.6

6.2

9.6

9.6

9.2

8.9

8.6

7.6

7.6

8.6

8.6

8.6

8.9

9.2

8.6

7.4

6.2

Mean

63.0

198

213

9 59

10.6

296

Sept.

5.3

5.1

5.5

8.6

9.6

11

9.9

8.6

5.7

7.4

8.9

8.9

8.9

8.3

8.6

8.6

9.9

10

12

13

14

13

11

12

16

16

16

15

15

16

-

Runoff in 

acre-feet

3,870

143,400

630

215,000
FEATHER RIVER BASIN 339

Spanish Creek at Keddie, Calif.

Location.- Water-stage recorder, lat. 40°00'05", long. 120°57'20", in NE£ sec. 27, T. 25 

N., K. 9 E., 200 feet upstream from Blackhawk Creek and 0.9 mile southeast of Keddie. 

Altitude of gage, about 3,250 feet (from topographic map).

Drainage area.- 184 square miles.

Records available.- October 1933 to September 1948. October 1911 to September 1933 at 

site 1.2 miles downstream.

Average discharge.- 15 years (1933-48), 247 second-feet.

Extremes.- Maximum discharge during year, 3,860 second-feet Apr. 17 (gage height, 7.00 

feet); minimum, 15 second-feet Sept. 6.

1911-48: Maximum discharge, 12,400 second-feet Dec. 11, 1937 (gage height, 12.43 

feet), from rating curve extended above 4,400 second-feet by logarithmic plotting; 

minimum, 3.8 second-feet Aug. 12, 1934.

Remarks.- Records good. Diversion above station for irrigation in American Valley. 

Revisions (water years).- W 1041: 1938(M).

Rating table water year 1947-48 (gage height, In feet, 

nd discharge, In second-feet)

1.0 14 1.7 46 2.6 179 4.5 1,250 

1.1 17 1.9 61 2.8 238 5.O 1,7OO 

1.2 20 2.1 83 3.1 348 5.7 2,4OO 

1.3 24 2.2 97 3.5 535 6.4 3,150 

1.5 34 2.4 132 3.9 78O

Discharge, in second-feet, water year October , 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

24 

24 

24 

24 

23

23 

25 

44 

38 

52

78

51 

42 

40 

42

259 

141 

87 

69 

55

87 

57 

55 

59 

58

54 

52 

52 

142 

152 

103

Nov.

130 

152 

113 

103 

122

99 

87 

81 

75 

70

59 

55 

63 

52 

53

53 

50 

59 

59 

55

55 

52 

51 

52 

53

54 

55 

54 

54 

54

Dec.

53 

52 

52 

59 

58

55 

54 

54 

50 

47

52 

50 

48 

53 

52

50 

55 

59 

55 

54

55 

58 

55 

55 

52

52 

51 

53 

49 

47 

47

Jan.

54 

338 

238 

531 

558

470 

1,350 

898 

399 

279

210 

176 

154 

139 

128

119 

113 

108 

99 

94

91 

90 

a89 

a87 

85

77 

58 

71 

75 

73 

73

Feb.

78 

75 

67 

70 

78

82 

75 

72 

81 

79

58 

63 

73 

78 

93

122 

130 

132 

124 

115

110 

143 

145 

122 

111

107 

103 

108 

105

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Bay.

June 

July 

Augu 

Sept

ffa

ber... .................................

mber . ..................................

lendar year 19'47 ......................

ary

h. .....................................

ember. .................................

ter year 1947-48 ......................

Mar.

100 

97 

91 

87 

85

85 

83 

87 

93 

85

82 

81 

111 

135 

117

115- 

122 

117 

128 

117

110 

122 

554 

865 

455

328 

317 

321 

321 

445 

417

Apr.

1 

1

1 

1

I 

1 

1 

1

1 

1 

1 

1

1

Secondfoot-days

2,094 

2,197 

1,538

43,111

7,445 

2,811 

5,388 

30,117 

18,412 

7,970 

1,913 

972 

785

82,742

Peak discharge (base, 850 sec. -ft.).- Jan. 4 (11 p.m.)

394 

475 

545 

450 

412

404 

340 

355 

,250 

,290

829 

525 

552 

,010 

,750

,680 

,070 

,820 

,300 

,140

,150 

,380 

,300 

,050 

930

882 

,010 

986 

882 

843

Bay

738 

662 

638 

668 

780

946 

978 

717 

602 

535

530 

546 

602 

608 

57 4

614 

650 

614 

552 

535

475 

440 

460 

505 

552

557 

525 

455 

399 

510 

445

Maximum

269 

162 

59

2,510

1,350 

145 

866 

3,070 

378 

495 

94 

37 

35

3,O70

June

390 

399 

417 

412 

495

470 

417 

399 

408 

373

340 

309 

279 

258 

245

222 

204 

196 

187 

187

182 

162 

156 

150 

141

136 

126 

111 

103 

96

Minimum

23 

51 

47

12

54 

63 

81 

340 

399 

96 

34 

25 

16

16

July

94 

94 

89 

87 

84

87 

89 

83 

79 

77

71 

69 

63 

59 

59

57 

56 

53 

50 

50

48 

47 

39 

45 

46

45 

45 

42 

38 

34 

34

Aug.

34 

32 

32 

32 

30

30 

30 

30 

36 

37

30 

25 

30 

30 

31

30 

31 

30 

32 

34

32 

32 

33 

33 

33

32

32 

30 

30 

30 

29

Sept.

27 

27 

26 

25 

21

16 

16 

16 

17 

17

20 

20 

24 

24 

23

23 

25 

27 

30 

30

29 

29 

33 

34 

34

34 

35 

35 

34 

34

 Runoff in Bean acre-feet

67.5 4,150 

73.2 4,360 

52.8 3,250

118 85,520

240 14,770 

96.9 5,580 

206 12,670 

1,004 59,740 

594 36,520 

266 15,810 

61.7 3,790 

31.4 1,930 

26.2 1,560

226 164,100

922 sec. -ft.; Jan. 7 (6:30 p.m.) 2,46O sec.-

ec.-ft., 

a No gage-height record; discharge Interpolated.
340 FEATHER RIVER BASIN

Bucks Creek Reservoir near Bucks Ranch, Calif.

Location.- Water-stage recorder, lat. 39°54', long. 121°]2', in NWjj sec. 33, T. 24 N., R. 

YE., 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 (levels by Feather River 

Power Co.); gage readings have been reduced to elevations above mean sea level.

Drainage area.- 28 square miles.

Records available.- October 1928 to September 1948.

Extremes.- Maximum contents during year, 103,400 acre-feet June 19 (elevation, 5,155.8 

feet); minimum, 55,500 acre-feet Mar. 15 (elevation, 5,127.0 feet).

1928-48: Maximum contents, 105,800 acre-feet June 23, 1938 (elevation, 5,157.1 

feet); minimum, 12,330 acre-feet Feb. 27, 1929 (elevation, 5,090.7 feet).

Remarks.- Reservoir is formed by concrete-faced rock-fill dam completed in 1927; storage 

began in May 19P7. Capacity, 101,400 acre-feet between elevations 5,064.75 feet (sil 

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, thence to Bucks Creek power plant. Records show total contents at 

12 p.m., of which 274 acre-feet are not available for release.

Cooperation^- Record of contents, furnished by Pacific Gas & Electric Co., obtained in 

connection with a Federal Power Commission project.

Contents, In tho nds of acre-feet, water year October 1947 to September 1948

Daj

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

Oot.

70.2

69.7

69.2

68.9

68.6

68.4

68.4

63.1

68.0

68.0

68.1

68.2

68.2

68.2

68.3

69.2

69.9

70.0

70.0

70.2

70.4

70.5

70.5

70.7

70.7

70.7

70.7

70.8

71.2

71.5

71.6

NOT.

72.0

72.2

72.3

72.5

72.5

72.6

72.6

72.7

72.8

72.8

72.6

72.5

72.1

72.0

71.7

71.6

71.3

71.2

70.9

70.7

70.5

70.3

70.0

69.8

69.6

69.4

69.2

69.0

68.8

68.6

-

Deo.

68.4

68.2

68.0

67.9

67.7

67.5

67.4

67.2

67.0

66.8

66.6

66.4

66.2

66.1

65.8

65.6

65.4

S5..3

65.2

65.1

6'4.6

64.6

64.2

63.8

63.3

63.0

62.8

62.6

62.6

62.7

62.8

Jan.

62.8

62.8

62.9

63.5

64.3

65.0

66.0

66.4

67.0

67.5

67.8

68.0

68.0

68.2

68.3

68.4

68.6

63.8

68.9

69.0

69.1

69.2

69.2

69.0

67.6

67.2

67.6

36. 4

66.1

65.7

65.3

Feb.

65.0

64.7

64.5

64.3

64.0

63.9

63.7

63.5

63.2

63.1

63.0

32.8

62.8

62.6

62.4

62.1

61.8

61.6

61.4

61.2

60.9

60.7

60.6

60.5

60.3

60.2

60.2

60.0

59.8

_

-

Mar.

59.7

59. S

59.2

58.5

58.2

57.8

57.4

57.0

56.8

56.5

56.2

55.8

55. S

55.6

55.5

55.7

55.8

55.9

56.1

56.2

56.4

56. S

56.8

57.1

57.3

57. S

57.5

58.1

58.2

58.3

58.5

Apr.

58.6

59.1

59.2

59.4

59.7

59.8

60.1

60.3

60.6

60.8

61.2

61.8

62.5

63.1

63.7

64.3

65.0

65.4

66.0

66.5

67.0

67.5

68.0

68.5

69.1

.69.2

69.7

70.1

70.5

71.0

Hay

71.4

71.8

72.3

72.8

73.4

73.8

74.3

74.8

75.3

75.9

73.5

77.1

77.7

78.3

78.9

79.5

80.2

80.9

81.6

82.3

83.0

83.8

84.5

85.5

86.3

87.2

88.1

89.1

90.0

90.8

91.6

June

92.4

93.2

94.1

94.8

95.9

97.0

97.8

98.7

99.5

100-. 4

101.2

102.1

102.4

102.5

102.7

102.8

103.0

103.2

103.4

103.3

103.3

103.2

103.2

103.2

103.1

103.0

103.0

102.9

102.8

102.8

July

102.8

102.7

102.6

102.5

102.5

102.5

102.4

102.4

102.3

102.3

'102.3

102.3

102.2

102.2

102.2

102.2

102. '2

102.2

102.2

102.2

102.2

102.2

102.1

102.1

132.0

101.5

101.0

100.6

100.1

99.7

99.2

Aug.

98.7

98.4

98.1

97.8

97.5

97.2

96.9

96.5

96.1

95.8

95.4

95.1

94.7

94.3

93.9

93.6

93.2

93.0

92.6

92.2

91.9

91.5

91.1

90.7

30.2

89.8

89.4

88.9

88.8

88.5

88.3

Sept.

87.8

87.6

87.4

87.1

86.8

86.3

85.9

85.5

85.0

84.6

84.2

83.8

83.4

83.1

82.7

82.4

82.1

81.7

81.6

81.5

81.5

81.4

81.4

81.4

81.3

81.3

81.3

81.3

81.4

81.4

Monthly elevation and contents year October 1947 to September 1948

Date

Calendar year 1947...

Aug . 31 ................

Water year 1947-48.. .

Elevation 

(feet)

-

5 13^ 4

5 129 0

5 149 2

-

Contents 

(acre-feet)

-

-

Change in contents 

during month 

(acre-feet)

-8,900

+10,700
FEATHER RIVER BASIN 341

West Branch Feather River near Yankee Hill, Calif.

Location.- Water-stage recorder, lat. 39°42', long. 121°34', in SW£ sec. 5, T. 21 N., R. 

4 K., 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.

Kecords available.- September 1930 to September 1948.

Average discharge.- 18 years, 331 second-feet.

Extremes.- Maximum discharge during year, 6,470 second-feet Jan. 7 (gage height, 15.30 

feet); minimum, 4.4 second-feet Sept. 4.

1930-48: Maximum discharge, 21,400 second-£eet 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. 343) diverts water from Concow 

creek below Lake Wilenor (capacity, 8,000 acre-feet) for power development and irrigation. Dewey, Miners, and H^ndricks Canals divert from headwaters of West Branch 

Feather River into Butte Creek Basin (see p. 330) 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.

Rating .tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

4.0

Oct. 1 to Apr. 9

25 4.5

38 5.0

61 5.5

89 6.0

135 7.0

216

321

439

576

930

8.0

9.0

10.0

11.0

11.7

1,360

1,830

2,390

3,000

3,500

Apr. 10 to Sept. 30

2.3 4.6 2.6 14

2.4 7.1 2:7 19

2~.5 10

Note.- Same as preceding 

table above 2.7 feet.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

fi

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

??

23

24

25

26

27

28

29

30

31

Oct.

4.6

4.8

5.1

4.8

4.6

4.6

6.3

28

16

88

145

26

8.5

5.7

5.4

1,300

306

97

59

38

197

69

36

24

16

11

8.1

8.1

472

491

176

Nov.

426

376

170

135

180

108

82

69

58

47

42

37

32

29

30

46

37

31

24

22

17

15

11

11

10

12

15

13

11

10

-

Dec.

11

12

9.0

12

14

12

39

38

34

29

23

17

10

7.7

6.6

6.9

21

33

17

16

31

79

55

39

Z&

25

23

22

32

23

16

Jan.

19

891

609

1,060

2,340

1,530

3,470

1,990

978

657

490

397

328

277

237

210

185

167

149

136

127

116

112

107

100

86

74

72

71

68

65

Feb.

70

83

51

159-

116

97

72

65

83

86

66

58

62

59

65

110

111

103

101

91

82

101

116

88

78

74

75

112

103

-

-

Month

December. ..................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

86

72

66

56

52

51

50

51

63

56

51

51

284

412

243

346

360

262

383

295

254

197

2,760

2,240

1,030

585

459

404

374

424

385

Apr.

385

537

782

684

628

512

434

527

,650

,130

,400

,030

842

,120

,120

,960

,140

,740

,400

,300

,380

,580

: ,390

,070

,040

 ,070

998

,260

,370

,480

-

Seoondfoot-days

741.2

59,352.6

2 537

178.1

124,784.9

May

1,180

998

942

942

1,060

1,210

r,240

958

858

792

806

858

982

1,020

986

1,100

1,460

1,220

978

870

778

691

838

962

1,030

1,090

1,070

954

772

1,110

890

Maximum

79

5,010

159

154

10

3,470

June

818

894

942

953

1,310

962

922

874

846

750

644

564

509

472

464

449

432

416

385

397

374

339

317

306

281

260

235

212

182

164

-

Minimum

6.6

3.5

4.6

4.6

July

154

139

122

99

92

97

93

87

76

68

60

53

48

44

40

37

32

30

27

26

24

21

17

16

15

13

14

11

9.4

8.2

7.6

Aug.

7.6

7.1

6.8

7.6

6.6

6.3

6.1

5.8

5.5

5.5

5.5

5.5

6.1

6.3

6.1

5.8

5.5

5.5

5.3

5.3

5.5

5.3

5.5

5.8

5.8

5.5

5.3

4.9

4.9

4.6

4.9

Mean

23.9

163

552

5.94

341

Sept.

4.9

4.9

4.6

1 4.9

5.3

5.5

5.5

5.3

5.3

5.5

5.5

5.8

5.5

5.3

5.5

6.6

7.9

10

10

7.9

7.4

6.6

6.1

5.8

5.5

5.5

5.1

'4.9

4.9

4.6

Runoff in 

acre-feet

1,470

117,700

353

247,500

Peak discharge (base, 1,400 see. -ft.).- Oct. 16 (10:30 

sec. -ft. j Mar. 23 (7 p.m.) 5,750 see. -ft.: Apr. 9 (10 a. m

2,400 sec. -ft.

i.m.) 3,120 see,-ft.; Jan. 7 (3 p.m.) 6,470 

) 3,580 see.-ft.; Apr. 15 {3:30 p.m.)

889419 O - 50 - 23
FEATHER RIVER BASIN

Concow Creek near Yankee Hill, Calif.

Location.- Water-stage recorder above diversion dam of Spring Valley ditch, lat. 39°46' 

long. 121°32', in NE£ sec. 16, T. 22 N., R. 4 E., 300 feet downstream from Lake 

Wilenor Dam and 4 miles north of Yankee HiU post office. Altitude of gage, about 

1,850 feet (from topographic map).

Drainage area.- 14.7 square miles.

ttecords available.- October 1927 to September 1948.

Average discharge?- 21 years, 26.9 second-feet, combined flow of Concow Creek and Spring 

Valley ditch.

Extremes.- Maximum discharge during year, 1,090 second-feet Mar. 23 (gage height, 3 33 

feet); no flow most of year.

1927-48: Maximum discharge, 2,060 second-feet Jan. 21, 1943 (gage height, 5.35 

feet, fr.om floodmark in well], from rating curve extended above 80 second-feet by computations of flow over dam; no flow for many months in each year.

Remarks.- Records good except those for periods of no gage-height record, which are poor 

OnSept. 30, 1947, storage in Lake Wilenoi* (capacity, 8,200 acre-feet), was 3,340 

acre-feet, and on Sept. 30, 1948, it was 6,580 acre-feet. Records show flow passing 

diversion dam; for total flow out of reservoir, add that of Spring Valley ditch (see 

following page).

Cooperation.- Water-stage recorder graph, furnished by Table Mountain and Thermalito 

irrigation Districts, obtained in connection with a Federal Power Commission prelect.

Revisions (water years).- W 931: 1928(M), 1940.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In aeoond-feet)

4.4

12

24

113

174

1.2 

1.4 

1.6 

1.8 

2.0

240

310

382

458

536

Discharge, in second-feet, water year October 1947 to September 1948

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. Nov. Dec.

0

0

0

0

0

0

0

0

0

.2

.2

.2

.2

.3

.4

.4

.5

.4

.4

.5

.5

.5

.6

.6

.6

.6

.7

.7

.7

.7

.7

Jan.

0.8

1.0

.6

.8

.7

.7

1.0

.7

a. 7

a. 7

a. 7

a. 7

a. 7

a. 7

a. 7

a. 8

a. 8

a. 8

a. 8

a. 8

a. 8

.4

.5

.6

.6

.6

.6

.5

.5

.5

.5

Feb.

23

18

.8

117

40

16

9.2

7.6

9.2

9.2

8.4

7.6

6.1

6.1

6.8

7.6

9.2

12

12

9.2

8.4

7.6

6.8

6.1

5.5

5.5

6.8

13

12

_

-

Month

December ...............................:....

Calendar year 1947. ......................

February

March. .....................................

April............. .........................

May. ................................ . v . .....

September ..................................

Water year 1947-48 ......................

liar.

9.2

7.6

7.6

6.8

5.5

5.5

6.1

6.1

8.4

7.6

5.5

6.8

53

102

61

76

86

66

94

64

42

35

533

472

190

100

74

53

44

39

32

Apr.

27

51

113

108

102

81

64

74

411

296

171

108

78

86

136

122

116

89,

68

57

68

102

125

41

32

44

57

87

136

209

-

Secondfoot-days

10.6

542.2

21.3

3,259

739.2

0

6,921.7

May

142

100

76

61

53

44

39

35

30

27

27

24

12

2.8

6

0

0

O

0

0

0

.8

0

0

0

0

1.6

1.0

2.0

31

30

Maximum

.7

37

1.0

117

533

411

142

0

533

June

9.6

a!5

a20

a25

37

25

20

14

.8

2.5

4.4

4.9

6.1

1.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Minimum

0

0

.8

5.5

27

0

0

0

0

0

July Aug.

Mean

.34

1.49

.69

74.2

109

23.8

6.21

0

0

18.9

Sept.

Runoff in 

acre-feet

21

1,080

42

4,560

6,460

1,470

369

0

0

13,730

a No gage-height record; discharge computed on basis of range In stage, weather records, and 

records for West Branch Feather River near Yankee Hill.
FEATHER RIVER BASIN 343

Spring Valley ditch near Yankee Hill, Calif.

Location.- Vfater-stage recorder, lat. 39°46', long. 121°32', in NE£ 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 1948. 

Average discharge.- 21 years, 10.2 second-feet.

Extremes.- Maximum daily discharge during year, 29 second-feet Oct. 7; no flow Oct. 12. 

 1927-48: Maximum daily discharge, 49 second-feet Oct. 25-27, 1928; no flow at 

times during most years.

Remarks.- Records excellent except those for Oct. 17 to Jan. 21, which are poor. Ditch 

diverts from left bank of Concow Creek (see preceding page) 300 feet downstream from 

Lake Wilenor; water used for power development in Lime Saddle and Coal Canyon plants 

of Pacific Gas & Electric Co., and for irrigation in Table Mountain and Thermalito 

irrigation districts.

Cooperation.- Water-stage recorder graph, furnished by Table Mountain and Thermalito 

irrigation Districts, obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

25

25

25

25

25

27

29

16

8.2

6.6

1.2

0

9.4

16

18

6.6

. a. 2

Nov.

> aO.2

Dec.

.aO.2

Jan.

, aO.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

Feb.

0.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March.. ....................................

April ......................................

May. .......................................

June .......................................

July.... ...................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

0.1

.1.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.4

.4

.2

.1

.1

.1

.1

.1

.1

Apr.

0.1

.1

.1

.1

.1

.1

.1

.1

.3

.3

.2

.2

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1.

-

Secondfoot-days

266.0

6.0

6.2

3,048.7

6.3

3.1

4.1

3.7

192.1

287.6

125.2

331.9

397.8

1,630.0

May

0.1.1

.1.1

.1

.1

.1.1

.1

.1

.1.1

.1

.8

2.0

2.0

2.1

2.4

2.9

4.6

12

20

19

19

18

11

16

21

14

12

12

Maximum

29

-

32

.3

.2

.4

.3

21

14

7.4

19

20

29

June

11

11

11

11

11

11

10

10

8.3

8.9

9.0

9.0

9.0

13

14

13

12

11

9.9

9.6

9.0

.9

.6

.5

.6

.2

.1

.1

'6.8.1

-

Minimum

0

-

0

.1

.1.1

.1

6.8

2.4

4.0

6.6

0

July

5.5

4.6

4.4

4.2

3.4

2.7

2.8

3.0

3.1

3.1

3.1

2.6

2.6

3.4

7.4

5.8

5.0

5.1

5.1

5.1

5.1

4.6

4.4

4.5

4.4

3.9

3.9

3.0

2.4

3.0

4.0

Aug.

4.0

4.2

4.3

4.3

4.3

5.7

9.2

12

13

13

12

12

12

12

10

9.9

10

11

11

11

14

15

15

12

10

9.5

9.5

11

14

18

1,9

Mean

8.58

.2

.2

8.35

.2

.11

.13

.12

6.20

9.59

4.04

10.7

13.3

4.45

Sept.

18

18

17

15

14

14

14

14

14

14

14

14

14

14

12

10

8.1

6.7

6.6

6.6

7.8

13

15

14

14

14

14

14

14

20

-

Runoff in 

acre feet

528

12

12

6,05O

12

6.1

8.1

7.3

381

570

248

658

789

3,230

a No gage-height record; discharge computed on basis of observer's notes.
344 FEATHER RIVER BASIN

Middle Fork Feather River near Clio, Calif.

Location.- Water-stage recorder, lat. 39°45', long. 120°36', in Ej sec. 23, T. 22 N., R. 

12 E., 0.3 mile upstream from Frazier Creek and-1.5 miles northwest of Clio. Altitud 

of gage, about 4,350 feet (from topographic map).

Drainage area.- 699 square miles.

Records available.- October 1925 to September 1948.

Average discharge.- 23 years, 247 second-feet.

Extremes.- Maximum discharge during year, 1,840 second-feet Apr. 17 (gage height, 7.24 

feet); minimum, 9.5 second-feet (from recorded range in stage) probably in September.

1925-48: Maximum discharge, 11,000 second-feet Mar. 26, 1928 (gage height, 12.0 

feet), from rating curve extended above 7,000 second-feet; minimum 4.3 second-feet 

Sept. 5, 1934.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Many small diversions above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13

13

13

13

12

12

19

20

IB

31

24

IB

18

17

18

96

32

26

23

2B

30

25

24

23

22

23

24

24

49

34

30

Nov.

31

30

29

31

34

30

2B

32

36

37

38

39

39

39

39

38

3B

38

39

39

3B

37

34

34

34

33

34

35

40

42

Dec.

47

47

46

45

42

40

40

40

36

34

35

33

32

34

34

36

53

46

43

43

43

45

43

41

40

39

39

41

40

36

36

Jan.

43

199

101

241

240

213

759

5B6

321

374

374

270

189

125

122

106

93

87

Bl

69

75

72

74

75

74

65

47

b47

47

47

47

Feb.

b47

b47

b46

b45

b45

b44

44

b44

b44

b44

44

44

43

43

101

75

74

90

144

171

148

152

139

109

101

103

106

103

92

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947 4B ......................

Mar.

87

82

7B

75

71

65

62

64

67

65

67

60

51

48

46

50

68

82

86

81

86

92

120

137

136

127

148

173

230

289

315

Apr.

329

340

329

232

230

270

262

307

646

714

75B

730

62B

711

1,000

1,020

1,540

1,020

818

790

706

675

698

655

614

610

600

564

484

474

Secondfoot-days

772

1,065

1,249

39,492.9

5,263

2 332

3 208

18I754

7,299

4,329

748

434

390

45,343

May

454

377

340

321

313

300

305

274

249

230

228

221

183

163

153

159

163

165

1B3

205

219

209

213

217

234

23B

219

191

165

193

215

Maximum

96

42

53

1,860

759

171

315

1,540

454

284

46

-

1,540

June

197

197

203

209

249

284

232

225

234

219

195

183

165

152

137

127

117

111

104

98

96

86

78

75

72

68

61

56

51

48

Minimum

12

28

32

8.9

43

43

46

230

153

48

16

-

-

July

46

44

40

38

37

35

33

30

26

25

24

22

22

21

21

24

22

20

18

alB

a!8

a!7

a!7

a!7

a!7

a!6

a!6

a!6

a!6

a!6

a!6

Aug.

, a!4

Mean

24.9

35.5

40.3

10B

170

80.4

103

625

235

144

24.1

14

13

125

Sept.

> a!3

Runoff in 

acre- feet

1,530

2,110

2,480

78,320

10,440

4,63O

6,360

37,200'

14,480

3,590

1,480

861

774

90,940

Peak discharge, base, 650 sec.-ft.).- Jan. 7 (3:30 p.m.) 1,530 sec.-ft.; Apr. 9 (6 p.m.) B84 sec.- 

ft.; Apr. 17 (4:30 a.m.] 1,B40 sec.-ft.

a No gage-height record; discharge computed on basis of records for station below Sloat. 

b Stage-discharge relation affected by ice.
FEATHER RIVER BASIN 345

Middle Fork Feather River below Sloat, Calif.

Location.- Water-stage recorder, lat. 39°52', long. 120°46', 0.5 mile west of Bells Bar,

1.2 miles downstream from Rattlesnake Creek, and 1.6 miles west of Sloat, Plumas

County. Altitude of gage, about 4,050 feet (from topographic map). 

Drainage area.- 835 square miles. 

Kecords available.- December 1940 to September 1948. Records published for period November

1910 to February 1928 for Middle Fork Feather River at Sloat (at site 2.0 miles upstream) are not comparable. 

Extremes.- Maxiirum discharge during year, 3,540 second-feet Apr. 17 (gage height, 6.38

reet) ; minimum, 40 second-feet Oct. 6, 7.

1940-48: Maximum discharge, 12,400 second-feet Jan. 21, 1943 (gage height, 12.65

feet); minimum, 35 second-feet Sept. 7, 1947.

Maximum stage known, 13.2 feet, from floodmarks, probably in February 1940 (discharge, 13,300 second-feet, from rating curve extended above 9,000 second-feet). 

Remarks.- Records good except those for periods of ice effect or no gage-height record,

which are fair. Flow slightly regulated by mill pond at Sloat. Many small diversions

above station for1 irrigation.

Rating tables, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Jan 7 to Sept. 30

1.3 

1.6 

2.0 

2.5 

3.0

185

261

400

615

870

1,160

1,490

2,250

3,150

0.3 38 1.2 178

.4 47 1.5 251

.5 58 1.8 342

.7 86 2.1 455

.9 119 2.5 615

Note.- Same as preceding 

table above 2.5 feet.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

42

42

42

42

42

4O

45

64

53

79

83

64

56

54

55

349

160

98

82

79

104

83

76

72

69

68

67

67

136

163

117

Nov.

116

121

104

104

116

99

92

89

93

93

95

93

92

90

90

89

88

88

88

85

83

88

83

78

78

77

77

79

81

83

~

Dec.

88

89

92

93

89

86

86

86

b84

b82

81

81

82

79

81

83

93

100

92

98

108

108

98

95

90

90

89

95

93

b92

b90

Jan.

90

332

291

711

908

745

1,570

1,540

837

7OO

645

527

419

316

297

264

241

222

208

191

187

185

180

178

176

161

149

b!47

bl45

b!43

140

Feb.

138

138

b!35

b!35

b!35

b!35

bl35

b!35

bl35

132

b!30

b!30

b!30

128

156

187

170

174

212

254

235

262

248

215

187

185

182

182

165

-

-

Month

Octo 

Nove 

Dece

ber. ...................................

nber. ..................................

nber. ..................................

Calendar year 1947 .......................

January ....................................

February. ..................................

March. .....................................

April. .....................................

Hay........................................

June .......................................

July .......................................

August .....................................

September . .................................

' Water year 1947-48 ......................

liar.

163

159

151

144

144

140

138

142

146

142

136

136

136

140

130

136

146

163

172

163

165

182

256

319

281

273

300

342

40O

519

531

Apr.

539

571

625

495

455

479

471

507

1,140

1,200

1,090

1,030

958

1,110

1,630

1,810

3,060-

2,140

1,660

1,570

1,490

1,490

1,410

1,310

1,240

1,240

1,290

1,260

1,140

1,080

Secondfoot-days

2,593 

2,732 

2,793

87,017

12,845

4,885

6,495

35,490

26,497

17,178

3,788

1,728

1,497

118,521

May

1,000

903

848

881

947

1,080

1,170

942

815

745

750

775

870

859

815

898

969

881

755

715

675

655

715

805

93O

1,030

992

842

705

775

755

Maximum

349

121 

108

2,750

1,570

262

531

3,060

1,170

870

251

66

62

3,060

June

725

775

859

864

837

a870

a840

a760

a760

785

735

700

625

583

551

515

491

475

463

455

447

415

388

370

360

342

322

303

290

273

Minimum

4O 

77 

79

36

90

128

130

455

655

273

66

49

44

40

July

251

233

212

196

187

176

168

157

148

138

130

123

117

114

109

109

104

97

92

89

86

83

82

79

78

76

75

73

71

69

66

Aug.

66

66

64

61

59

59

58

56

57

57

56

56

56

 57

56

56

55

54

55

55

54

54

55

54

51

51

51

51

50

49

49

Mean

83.6 

91.1 

90.1

238

414

168

210

1,183

855

573

122

55.7

49.9

324

Sept.

47

47

47

48

47

47

47

45

46

45

44

45

45

45

45

45

47

49

51

52

52

52

54

57

62

59

57

56

57

57

Runoff in 

acre-feet

5,140 

5,420 

5_,540

172,600

25,480

9,690

12,880

70,390

52,560

34,070

7,510

3,430

2,970

235,100

Peak discharge (base, 1,600 see.-ft.).- Jan. 7 (7 p.m.) 2,840 sec.-ft.; Apr. 

ft.; Apr. 22 (12:30 a.m.) 1,700 see.-ft.

a No gage-height record; discharge computed on basis of records for station 

b Stage-discharge relation affected by ice.

17 (6 a.m.) 3,540 sec. 

ear Clio.
346 FEATHER RIVER BASIN

Middle Fork Feather River at Bidwell Bar, Calif.

Location.- Water-stage recorder, lat. 39°33', long. 121°26', in NW£ see. 32, T. 20 N., R. 

5 K., at highway bridge at Bidwell Bar, 2 miles upstream from confluence with North 

Fork and 7 miles northeast of Oroville. Altitude of gage, about 290 feet (from topographic map).

Drainage area.- 1,353 square miles.

Records available.- October 1911 to September 1948.

Average discharge.- 37 years, 1,785 second-feet.

.Extremes.- Maximum discharge during year, 16,600 second-feet Apr. 17 (gage height, 12.70 

reet); minimum, 139 second-feet Oct. 6. k

1911-48: Maximum discharge, 93,000 second-feet Dec. 11, 1937 (gage height, 24.0 

feet, from floodmarks), from rating curve extended abov3 25,000 second-feet on .tyasis 

of velocity-area and AtfTstudies; minimum, 88 second-feet Jan. 8, 1937.

Remarks.- Records excellent. Flow slightly regulated by small reservoirs above station. 

Several diversions above station for irrigation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

-1.9 130 2.8 338 5.O 1,510 8.0 5,100 

2-0 148 3.0 398 5.5 1,960 8.5 5,85O 

2.-1 166 3.4 543 6.0 2,460 9.0 6,650 

2-2 187 3.8 720 6.5 3,040 10. O 8.50O 

2-4- 232 4.2 935 7.0 3,680 11.0 10,900 

2-6 282 4.5 1.12O 7.5 4,380 12.3 15,1OO

Discharge, in second- feet, water year October 1947 tc September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21' 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

143 

144 

146 

144 

141

141 

146 

239 

237 

430

583 

346 

256 

218 

213

2,100 

1,270 

563 

408 

385

579 

484 

395 

349 

324

3O7 

293 

296 

1,140 

1,410 

790

Nov.

1,050 

1,100 

745 

677 

893

686 

587 

531 

492 

465

44"! 

424 

408 

' a400 

a390

a380 

a370 

a360 

a355 

a350

a345 

338 

335 

330 

330

330 

327 

324 

324 

324

Dec.

330 

330 

327 

363 

352

330 

324 

330 

316 

307

307 

313 

304 

302 

304

304 

349 

363 

344 

. 335

360 

469 

428 

382 

360

349 

344 

346 

369 

349 

324

Jan.

338 

2,390 

2,620 

4,890 

7,650

5,140 

8,700 

8,960 

4,860 

3,420

2,740 

2,300 

1,960 

1,680 

1,460

1,330 

1,210 

1,120 

1,030 

983

911 

875 

848 

820 

795

745 

682 

663 

658 

658 

626

Feb.

617 

635 

587 

613 

644

686 

604 

592 

686 

658

571 

523 

547 

575 

613

740 

760 

740 

740 

760

780 

915 

1,070 

905 

831

780 

775 

815 

790

Month

Goto 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

JBay.

June 

July 

Augu 

Sept

ffa

mber. ..................................

mber. ...................................

lendar year 1947 ......................

h. .....................................

1. .....................................

-

ember. ............ r. ....................

tor year 1947-48 .................... '. .

liar

730 

710 

686 

663 

654

640 

626 

640 

672 

658

635 

635 

1,030 

1,090 

887

983 

1,060 

959 

1,200 

977

899 

899 

2,280 

3,770 

2,430

1,880 

1,760 

1,770 

1,760 

2,070 

2,260

Apr.

2 

2 

3 

2 

2

2 

2 

2 

5 

7

5 

4 

4 

4 

6

7 

15 

10 

8,

7,

7, 

8, 

7, 

6, 

5,

 5, 

6, 

6, 

5, 

5,

Secondfoot-clays

14,620 

14,411 

10,614

354,877

73,062 

20,552 

37,913 

172,110 

153,890 

79,520 

18,528 

8,991 

6,732

610,943

Peak discharge (base, 5,100 sec. -ft.).- Jan. 5 (l a.m

290 

700 

280 

960 

650

570 

270 

310 

580 

110

360 

450 

020 

320 

670

870 

000 

700 

160 

360

290 

000 

160 

360 

870

800 

190 

300 

870 

640

May

5,160 

4,740 

4,550 

4,620 

5,040

5,820 

6,520 

5,520 

4,860 

4,450

4,370 

4,480 

4,880 

5,220 

4,980

5,320 

5,910 

5,610 

5,020 

4,690

4,350 

4,020 

4,280 

4,760 

5,250

5,550 

5,480 

4,840 

4,200 

4,920 

4,480

Maximum

2,100 

1,100 

469

12,000

8,960 

1,070 

3,770 

15,000 

6,520 

4,520 

1,010 

355 

251

15,000

June

4,140 

4,320 

4,520 

4,410 

4,250

4,020 

3,920 

3,850 

3,900 

3,640

3,300 

3,140 

2,820 

2,620 

2,450

2,300 

2,160 

2,050 

1 , 940 

1,870

1,770 

1,660 

1,550 

1,470 

1,410

1,340 

1,280 

1,200 

1,130 

1,090

Minimum

141

324 

302

134

338 

523 

626 

2,270 

4,020 

1,090 

366 

239 

204

141

July

1,010 

959 

899 

853 

826

810 

785 

755 

715 

682

654 

631 

604 

583 

579

567 

551 

531 

507 

480

465 

451 

441 

431 

421

414 

405 

395 

382 

376 

366

Aug.

355 

352 

344 

335 

330

324 

318 

316 

313 

310

307 

299 

296 

290 

288

290 

285 

282 

277 

272

269 

264 

269 

269 

261

254 

251 

246 

244 

239 

242

Mean

472 

480 

342

972

2,357 

709 

1,223 

5,737 

4,964 

2,651 

598 

290 

224

1,669.

) 8,700 sec. -ft.; Jan. 7 (8 p.m.;

Sept.

244 

239 

237 

222 

220

220 

222 

220 

218 

215

208 

204 

204 

206 

204

204 

213 

227 

232 

232

230 

227 

227 

234 

251

249 

244 

232 

225 

222

Runoff in 

acre feet

29,000 

28,580 

21,050

703,800

144,900 

40,760 

75,200 

341,400 

305,200 

157,700 

36,750 

17,830 

13,350

1,212,000

14,700

see.-ft.; Apr. 10 (5 a.m.) 8,540 see.-ft.; Apr. 17 (7 a.m.) 

sec.-ft.

a No gage-height record; discharge interpolated.
FEATHER RIVER BASIN

South Fork Feather River at Enterprise, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 121°21', in SW£ sec. 6, T. 19 N., R.

b E., 0.8 mile upstream from McCabe Creek and 1 mile upstream from highway bridge at

Enterprise. Altitude of gage, about 550 feet (from topographic map). 

Drainage area.- 134 square miles. 

Records available.- September 1930 to September 1948. October 1911 to September 1930 at

site hair a mile downstream. 

Average discharge.- 37 years, 299 second-feet, 

extremes.- Maximum discharge during year, 3,450 second-feet Apr. 17 (gage height, 10.30

reetj; minimum, 1.5 second-feet Sept. 5.

1911-48: Maximum discharge, 17,300 second-feet Dec. 10, 1937 (gage height, 20.4

feet), from rating curve extended above 5,000 second-feet on basis of velocity-area

studies; minimum, 0.2 second-foot Aug. 11, 1917. 

Remarks.- Records good. Storage'and diversions above station for irrigation. (See following page for records for Palermo Canal).

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Apr. 17 Apr. 18 to Sept. 30

1.8

1.9

2.1 

2.4 

2.7 

3.1 

3.5 

4.O 

4.5

22

97 

145 

234 

34O

5.0 

6.0 

7.0 

8.0 

9.0 

9.8

470

790

1,190

1,720

2,380

3,000

1.0 

1.8 

4.0 

5.5

1.8

1.9

93

144

5.3 

6.0 

6.5

204

276

350

535

780

980

Note. - Same as preceding table above 

6.5 feet.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.4

4.4

3.9

3.7

3.6

3.5

4.0

12

12

37

48

20

11

9.7

9.3

209

136

50

37

36

65

54

39

33

29

27

26

26

175

182

92

Nov.

126

156

95.

78

97

75

66

61

56

51

47

44

41

39

41

47

42

37

34

32

30

30

29

29

28

28

28

28

28

28

-

Dec.

28

28

26

34

32

28

26

28

26

25

24

26

24

24

24

24

33

33

28

28

32

41

44

36

33

31

30

31

34

32

28

Jan.

31

378

423

789

1,200

840

1,520

1,420

790

557

406

359

338

287

244

a210

a!90

a!70

al50

a!40

131

123

117

112

107

98

89

90

88

85

77

Feb.

70

76

68

75

80

90

78

79

89

87

72

66

72

71

79

96

102

100

98

95

94

129

160

130

124

115

115

125

130

-

-

Month

December. ..................................

Calendar year 1947 ......................

March. .....................................

April ......................................

Ifan

July. ......................................

September ..................................

Water year 1947-48 ......................

Mar.

112

108

104

100

96

92

92

96

101

110

106

105

205

23O

173

191

214

191

222

178

154

148

306

703

479

357

331

325

303

338

357

Apr.

383

515

668

584

560

536

453

466

1,370

1,650

1,100

874

766

809

1,030

1,400

3,000

2,090

1,630

1,420

1,420

1,710

1,430

1,180

1,070

1,04O

1,210

1,20D

1,090

1,090

-

Secondfoot-days

921

52,955.5

186.2

100,897.5

Peak discharge (base, 1,400 sec. -ft.).- Jan. 7 (7 p.m.

May

984

888

844

860

928

1,080

1,200

1,020

904

820

800

808

872

936

916

980

1,060

1,070

1,000

976

884

784

812

884

972

1,030

1,010

908

784

976

860

Maximum

44

2,440

93

11

3,000

) 2,960 sec

June

766

784

8OO

788

752

678

658

633

626

577

508

475

412

378

350

322

292

272

249

220

176

161

148

144

140

138

134

124

115

105

-

Minimum

24

3.4

1.6

1.6

July

93

84

78

71

68

67

64

60

56

52

50

46

41

38

35

32

30

28

26

24

23

21

20

17

18

16

15

14

13

12

9.6

Aug.

8.6

8.1

7.4

5.9

5.4

5.2

5.0

4.2

3.9

3.6

3.3

3.2

2.9

3.8

5.5

7.9

6.4

4.2

4.2

3.2

2.9

3.0

3.0

3.9

3.9

3.2

1.6

1.6

1.6

15

Mean

29.7

145

6.2]

276 -

Sept.

6.5

11

4.7

1.6

1.6

4.3

6.4

6.4

6.3

3.3

1.7

1.6

4.0

4.8

4.9

5.0

6.1

7.4

6.8

6.8

6.4

8.1

9.3

9.6

9.3

9.3

8.4

8.4

Runoff in 

acre- feet

l',830

105,000

369

200,100

.-ft.: Apr. 10 (4 a.m.) 2,100 sec.

a No gage-height record; discharge computed on basis of recorded range in stage and records for 1 nearby streams.
348 FEATHER RIVER BASIN

Palermo Canal at Enterprise, Calif.

Location.- Water-stage' recorder and Parshall flume, lat. 39°32 I , long. 121°21i, in SW£ 

sec. 6, T. 19 N., R. 6 E., 400 feet downstream from intake at diversion dam on South 

Fork Feather River, 1 mile upstream from McCabe Creek, and 1 mile southeast of highway 

bridge at Enterprise. Altitude of gage, about 600 feet (from topographic map).

Records available.- October 1911 to September 1948. 

Average discharge.- 37 years, 18.9 second-feet.

Extremes.- Maximum daily discharge during year, 32 second-feet July 13-15, 20, Aug. 1, 5, 

 fi, 8, Sept. 2, 7-9, 13, 17; no flow Apr. 27 to May 7.

1911-48: Maxim'im discharge recorded, 43 second-feet July 25, 1927; no flow for 

periods in each year except 1939, 1941, 1942, 1944-47.

Remarks.- Records excellent except those for Oct. 9-11, 20-31, which are good. Canal diverts from left bank of South Fork Feather River, l^mile above Enterprise. Water is 

used for irrigation near Oroville. ~~

Cooperation.- Gage-height record collected in cooperation with Oroville-Wyandotte Irrigation District.

Discharge, in second-feet, water year October 1947 to Septenber 1948'

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.

a25

24

23

21

20

20

23

25

g!9

g27

g30

24

18

16

16

29

28

25

23

g24

g25

g24

g23

g22

821

g20

g20

g!9

g25

g27

g22

Nov.

16

16

g!6

g!6

g!6

gis

16

16

15

15

15

15

15

15

15

15

15

15

15

15

15

a!4

14

14

14

14

14

14

14

14

-

Dec.

14

14

14

15

15

15

14

14

14

14

14

14

14

14

14

14

14

15

14

14

14

14

15

14

14

14

14

14

14

14

14

Jan.

14

16

16

17

18

17

18

18

17

16

16

16

16

16

16

15

15

15

15

15

15

15

15

15

15

15

15

15

14

14

14

Feb.

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

15

15

15

15

15

15

15

15

-

-

Month

December. ...................................

Calendar year 1947- ......................

April. .....................................

May........................................

September. .................................

Water year 1947-48 ......................

liar.

14

14

14

14

14

14

14

14

14

14

14

14

15

15

15

14 .

15

15

15

15

14

14

15

16

16

15

15

15

15

15

15

Apr.

15

15

15

15

14

14

14

14

15

15

15

9.2

1.4

1.3

1.3

1.3

1.0.

.9

.8

2.8

4.4

4.2

4.0

7.9

6.7

1.6

O

0

0

0

-

Secondfoot-days

449

439

7,300.5

209.8

961

918

7,039.8

Bay

0

0

0

0

0

0

o

10

15

15

15

15

15

15

15

16

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

Maximum

30

16

15

30

18

15

15

10

32

32

32

June

18

18

18

18

18

17

17

17

17

17

17

16

16

16

14

17

22

24

26

28

29

30

30

30

30

30

31

31

31

31

-

Minimum

16

14

14

8.4

14

14

14

0

0

14

30

27

28

0

July

31

31

31

31

31

31

31

31

31

31

31

31

32

32

32

31

31

31

31

32

31

31

31

31

31

31

30

30

30

30

31

Aug.

32

31

31

31

32

32

31

32

31

3,1

30

30

30

30

31

31

31

30

30

31

29

27

29

28

27

28

28

29

29

28

30

Mean

22.8

15.0

14.2

20. o

15.6

14.3

14.6

6.99

12.9

22.5

31.0

30.0

30.6

19.2

Sept.

30

32

29

28

29

31

32

32

32

31

30

30

32

31

31

31

32

31

31

31

31

31

30

30

30

30

30

30

30

30

-

Runoff in 

acre-feet

1,400

891

871

14,480

960

821

897

416

795

1,340

1,910

1,840

1,820

13,960

a No gage-height record; discharge Interpolated.

g Computed from graph based on gage readings and record of Intake gate changes.
FEATHER RIVER BASIN 349

Middle Fork Yuba River at Milton, Calif.

location.- Water-stage recorder and concrete spillway control, lat. 39°31'22", long.

1KO"35 I 01", in SW? sec. 12, T. 19 N., R. 12 E., at diversion dam of Nevada Irrigation 

District, at old town site of Milton, 8 miles upstream from South Fork of Middle Fork. 

Altitude of gage, about 5,700 feet (from topographic map).

Drainage area.- 41 square miles.

Records available.- October 1928 to September 1934, October 1935 to September 1948. Decemcer 1925 to September 1928 at site 0.2 mile downstream.

Average discharge.- 18 years (1926-30, 1931-34, 1935-40, 1941-42, 1943-48), 102 secondreet (based on combined flow of Middle Fork at this station and Milton-Bowman tunnel 

at outlet).

Extremes.- Maximum discharge during year, 810 second-feet May 26 (gage height, 1.15 feet); 

no now over dam for long periods.

1925-34, 1935-48: 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 fair except those for April and May 1-14, which are poor. Milton- 

 Bowman tunnel (see p. 353)diverts above station to Bowman Lake (see p. 360).

Cooperation.- Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

O.O 0 O.5 2O7

.1 9 .6 277

.2 42 .7 354

.3 88 .8 440

.4 143 .9 535

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Discharge, in second- feet, water year October 1947 to, September 1948

Oct. Nov. Dec. Jan.

0

0

0

19

55

18

302

270

50

1.8

0

0

O

0

O

0

0

O

0

0

0

o

0

0

0

0

0

0

0

o

0

Feb.'

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1947 ......................

January. ...................................

February ....................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August ............... i ................:....

September. .................................

Water year 1947-48 ......................

Mar. Apr.

0

o

0

o

0

0

o

0

o

0

0

0

0

0

0

10

300

180

30

30

0

0

O

0

0

o

o

0

o

0

May

o

0

o

0

10

60

100

0

o

o

0

10

50

150

166

315

224

32

0

0

0

0

6.1

220

384

469

316

138

22

98

25

forays 1 

0 0

o o

0 0

375.3 133

715.8 302

0 0

0 0

550 300

2,795.1 469

1,607.1 291

0 0

0 0

0 0

5,668.0 469

June

105

261

291

176

5.2

46

131

187

205

110

69

20

0

o

0

o

0

0

0

o

0

0

0

0

0

0

0

o

.9

0

Minimum

0

0

0

0

0

0

0

0

0

o

0

0

0

o

July Aug. Sept.

!!-__ Runoff in "ean acre-feet

o o

o o

0 0

1.03 . 745

23.1 1,420

0 0

0 0

18.3 1,090

90.2 5,540

53.6 3,190

0 0

0 0

0 0

15.5 11,240

Note.- No gage-height record Mar. 17 to May 14; discharge computed on basis of 

above Oregon Creek and Milton-Bowman tunnel at outlet.
350 FEATHER RIVER BASIN

Middle Fork Yuba River above Oregon Creek, Calif.

Location.- Water-stage recorder, lat. 39°23', long. 121°05', in SEv sec. 28, T. 18 N., R. 

UK., 500 feet upstream from Oregon Creek and 2 miles northeast of North San Juan. 

Altitude of gage, about 1,450 feet (from topographic map).

Drainage area.- 170 square miles.

Kecords available.- March 1941 to September 1948. July to October 1900 and October 1910 

to February 1941 at site 1 mile below Oregon Creek (records not equivalent).

Extremes.- Maximum discharge during year, 3,480 second-feet Apr. 17 (gage height, 7.84 

reet); minimum, 21 second-feet Oct. 1, 2, 4, 5, 6, 7.

1941-48: Maximum discharge, 14,200 second-feet Jan. 21, 1943 (gage height, 12.83 

feet), from rating curve extended above 6,000 second-feet by logarithmic plotting; minimum, 20 second-feet Sept. 24, 25, 1947.

Remarks.- Records good except those for Jan. 6-15, which are fair. Milton-Bowman tunnel 

(see p. 353), above station, has diverted to Bowman Lake since 1928; also small diversions above station.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Backwater corrections applied Aug. 10 to Sept. 30)

Oct. 1 to Apr. 17

3.1 

3.3 

3.6 

3.9 

4.2

124

163

206

255

340

450

570

750

950

5.5 

6.0 

6.5 

7.0 

7.5

1,230

1,600

2,020

2,500

3,060

1.9 

2.1 

2.3 

2.6

Apr. 18 to Sept. 30

3.4 270

3.8 394

4.2 538

4.6 702

5.0 S9O

5.5 

6.0 

6.7

1,180

1,530

2,180

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

21

21

22

22

22

21

27

42

34

74

59

56

43

40

40

272

202

124

102

95

101

74

68

65

62

58

55

47

124

178

107

Nov.

112

141

98

86

92

75

68

62

58

54

53

50

48

47

52

57

51

48

45

44

42

41

40

40

40

40

40

40

40

4O

~

Dec.

40

39

39

43

40

39

38

38

37

36

36

36

35

35

35

35

45

41

38

39

40

44

42

39

37

36

36

38

37

34

34

Jan.

51

767

386

943

810

a700

al,200

al,300

a620

a430

a320

a270

a220

a!90

a!65

149

135

128

116

109

104

98

94

91

86

81

75

77

75

73

72

Feb.

72

70

65

69

74

75

65

70

85

86

69

65

72

70

92

121

122

119

117

107

101

141

178

137

124

117

112

122

110

-

-

Month

December. ...................................

Calendar year 1947 ......................

March ......................................

April ......................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

104

101

98

94

91

89

88

94

98

92

88

88

165

220

174

180

184

178

182

159

147

155

241

482

325

270

304

319

313

354

350

Apr.

386

514

646

554

522

550

430

403

1,130

1,450

890

674

588

610

820

1,290

3,060

2,130

1,530

1,370

1,370

1,250

1,140

940

870

870

1,020

989

923

912

-

Second 

foot-days

2,308

1,744

1,181

53,027

9,935

2,827

5,827

29,831

25,243

11,982

1,345

985

95,749

May

826

755

728

751

830

994

1,2DO

821

706

635

622

635

711

887

792

987

1,100

840

728

702

647

582

606

720

1,040

1,240

1,200

850

660

728

720

Maximum

272

141

45

2,310

1,300

178

482

3,060

1,240

885

143

52

36

3,060

June

602

783

885

811

554

496

582

631

689

635

482

468

372

346

324

303

285

270

260

252

244

227

215

206

203

192

181

170

162

152

-

Minimum

21

40

34

21

51

65

88

386

582

152

36

30

21

July

143

133

124

118

113

109

106

102

96

92

88

84

83

80

78

74

72

a70

a70

a66

a64

a62

a58

a58

a61

a59

a58

a56

a 55

a54

a55

Aug.

a52

a49

a50

a51

a49

47

47

46

46

46

46

45

44

44

43

42

42

42

42

41

40

41

42

42

41

39

38

38

37

37

36

Mean

74.5

58.1

38.1

145

320

97.5

188

994

814

399

43.4

32.8

262

Sept.

35

34

34

33

34

34

34

33

33

32

31

31

30

30

30

32

32

32

33

32

32

32

33

34

36

36

34

34

33

32

-

Runoff in 

acre-feet

4,580

3,460

2,340

105,200

19,710

5,610

11,560

59,170

50,070

23,770

5,040

2,670

1,950

189,900

Peak discharge (base, 2,000 sec.-ft.).- Apr. 17 (7,a.m.) 3,480 sec.-ft.

a No gage-height record: discharge computed on basis of recorded range In stage Jan. 6-15 and 

records for Oregon Creek and North Fork Yuba River below Goodyears Bar.
FEATHER RIVER BASIN 

Yuba. River at Narrows Dam, Calif.

351

Location.- Water-stage recorder above spillway of Narrows Dam, flow meter in penstock and 

wattmeters in powerhouse just below dam, lat. 39°14', long. 121°16', in SW^ sec. 14, 

T. 16 N., R. 6 E., 1 mile upstream from Deer Creek and 2.5 miles northeast of Smartville. Datum of gage, 526.99 feet above mean sea level (levels by Corps of Engineers).

Drainage area.- 1,110 square miles.

Records available.- October 1941 to September 1948. June 1903 to September 1941 (including now or ueer Creek) at site 2 miles downstream, published as Yuba River at Smartville.

Extremes.- Maximum discharge during year, 21,800 second-feet Apr. 17, including flow 

through powerhouse; minimum mean daily, 210 second-feet Oct. 10-14.

1941-48: Maximum discharge, 81,100 second-feet Jan. 21, 1943, including flow 

through powerhouse, from rating curve extended above 25,000 second-feet on basis of 

computations of flow over spillway by Creager's method; no flow Nov. 8 to Dec. 2, 1941, 

water being stored at dam.

Remarks.- Records excellent above 1,000 second-feet and fair below. Diversions for power 

and irrigation above station. Plow regulated by Lake Spaulding beginning in 1912 

(capacity. 74,500 acre-feet), Narrows Reservoir beginning in 1941 (capacity, 70,000 

acre-feet), Bowman Lake (see p. 360), Pordyce Lake beginning in 1926 ("apacity, 46,700 

acre-feet), and many smaller reservoirs. Records given herein show total flow over 

Narrows Dam spillway and through and past power plant.

Discharge, in second-feet, water year October 1947 to September 1348

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

420

310

285

280

275

275

430

335

315

210

210

210

210

210

370

565

665

665

665

660

660

660

640

665

670

670

670

570

420

425

390

Nov.

225

220

420

420

420

440

450

470

445

440

440

430

435

460

230

230

425

425

425

450

447

220

220

454

455

455

225

450

225

220

-

Dec.

425

430

425

440

465

220

220

450 s-'o

625

450

420

220

220

440

420

430

475

555

720

720

630

435

445

225

225

225

225

440

450

440

Jan'.

225

575

725

gl,510

g7,340

S4.960

g7,980

512,700

S5.730

3,580

2,770

2,210

1,810

1,600

1,410

1,340

1,210

1,130

1,070

1,020

985

9S5

970

950

925

890

890

880

880

880

767

Feb.

449

730

764

854

900

930

900

83S

791

960

797

741

730

730

730

730

730

744

S22

838

940

910

1,150

1,070

1,010

970

960

9S2

970

-

-

Month

December. ..................................

Calendar year 1947 .......................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

950

830

784

764

753

742

730

730

730

730

730

730

730

1,080

1,370

1,420

1,490

1,340

1,440

1,260

1,180

1,160

1,460

4,000

3,120

2,280

2,100

2,180

2,200

2,340

2,480

Apr.

2,760

2,870

4,500

4,240

3,730

3,730

3,130

2,790

6,030

10,400

6,790

5,010

4,210

4,050

5,300

7,330

18,100

12,600

9,080

8,220

8,220

9,340

8,660

7,080

6,360

6,510

6,920

7,460

7,040

6,730

-

Secondfoot-days

11,271

13,080

443,971

14,320

757,568

Peak discharge (base, 6,600 sec. -ft.).- Jan. 7 (12 p. m

May

6,020

5,480

5,390

5,230

5,770

6,920

8,140

6,740

5,720

5, -180

4,810

5,340

6,130

7,940

6,760.

7,560

8,820

7,340

6,540

6,200

5,600

4,760

5,120

6,580

7,740

8,540

S,420

6,580

5,340

5,780

6,280

Maximum

720

13,600

720

18,100

June

4,960

6,470

7,420

7,660

6,480

5,160

6,640

6,720

7,100

6,910

5,650

5,830

4,840

4,570

4,170

3,730

3,110

3,160

3,290

3,290

2,940

2,850

2,550

2,400

2,340

2,530

2,200

1,930

1,720

1,580

-

Minimum

220

220

210

449

295

210

July

1,470

1,450

1,470

1,280

1,100

1,080

1,040

999

955

920

890

880

773

744

731

715

625

580

525

580

590

595

570

555

555

515

450

420

400

415

420

Aug.

415

410

420

425

445

430

405

405

405

405

405

420

420

420

400

445

460

435

405

405

405

395

385

405

445

425

420

420

400

390

370

Mean

376

422

1,216

851

6,422

414

477

2,070

Sept.

370

41p

397

390

410

410

423

468

487

390

360

355

400

520

480

560

720

720

715

715

715

715

715

575

300

300

415

295

295

295

-

Runoff in 

ao re-feet

22,360

25,940

880,600

48,930

394,800

48,180

28,400

1,502,000

.) 18,100 sec. -ft.; Apr. 10 (7 a. IT.) 12,300

sec;-ft.; Apr. 17 (10:30 a.m.) 21,800 sec.-ft. 

g Computed from graph based on gage readings.
352 FEATHER RIVER BASIN

Yuba River at Marysville, Calif.

Location.- Water-stage recorder, lat. 39°08'40", long. 121°34'35", at Simpson Lane Bridge 

in Marysville,Yuba County, about 2 miles upstream from mouth. Zero of gage is set to 

datum of Corps of Engineers.

Records available.- October 1940 to September 1948 (1940-43, 1945, low-water periods only) 

in reports of Geological Survey. 1939-48 (1939-43, 1945, low-water periods only) in 

reports of Division of Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 19,000 second-feet Apr. 17; maximum gage height, 

60.03 feet Apr. 18; minimum discharge, 95 second-feet Oct. 6 (gage height, 44.97 feet).

1943-44, 1945-48: Maximum daily discharge, 26,000 second-feet Dec. 29, 1945 (gage 

height, 65.78 feet).

1940-48: Minimum discharge recorded, 64 second-feet Nov. 28, 29, 1941.

Remarks.- Records good except those for periods of backwater or no gage-height record, 

which are fair. Flow regulated by several reservoirs. Many diversions above station 

for power and irrigation.

Cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

?

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

?1

22

23

24

25

26

27

28

29

30

31

Oct.

232

203

152

129

120

105

103

184

230

256

220

201

180

161

170

293

712

610

595

572

590

600

590

580

590

580

576

585

472

600

444

Nov.

432

585

402

436

428

444

440

428

428

420

424

420

420

420

381

285

282

374

391

406

416

371

271

277

384

406

358

296

342

232

~

Dec.

230

327

354

381

402

368

250

258

368

580

432

413

345

232

235

324

374

406

406

580

615

620

432

406

354

245

222

213

243

348

345

Jan.

315

460

1,510

1,040

6,490

7,060

6,840

12,000

7,OOO

5,000

3,733

2,910

2,330

1,990

1,770

1,570

1,450

1,350

1,240

1,170

1,140

1,160

1,150

1,130

1,070

1,020

996

970

958

958

904

Feb.

670

670

790

868

958

,070

,110

,000

,030

,310

1,110

922

850

834

828

839

839

828

850

904

946

,020

,150

: ,180

,110

,070

,050

,080

: ,100

_

-

Month

December ...................................

Calendar year 1947 ......................

March. .....................................

May........................................

July.. .....................................

September. ................................

Water year 1947-48 ......................

Mar.

1,050

976

898

850

834

817

300

806

822

817

800

800

976

1,710

1,880

1,900

2,420

1,830

1,970

1,760

1,510

1,400

1,450

5,790

5,100

3,200

2,610

2,460

2,370

2,360

2,540

Apr.

2,520

2,870

4,260

4,640

4,670

4,320

3,640

3,080

4,990

11,600

8,000

6,OOO

5,000

4,820

5,770

8,630

15,900

15,000

12,000

10,000

9,500

10,000

10,000

9,000

7,500

7,200

7,000

7,600

8,000

7,800

~

Secondfoot-days

11,635

11,599

11,308

443,948

8,635

800,250

May

7,200

6,600

6,200

6,000

6,200

7,000

8,200

7,800

7,000

6,000

5,600

6,000

6,700

8,150

7,750

7,900

8,790

8,630

7,990

7,580

6,900

5,900

5,580

6,440

7,650

8,680

8,760

7,820

6,290

5,960

6,860

Maximum

712

585

620

16,000

584

15,900

June

5,660

6,100

6,890

7,340

7,160

5,840

6,170

6,650

6,880

7,070

6,140

5,800

5,280

4,660

4,360

3,880

3,320

3,100

3,180

3,140

3,060

2,900

2,590

2,250

2,120

2,250

2,040

1,830

1,570

1,410

-

Minimum

103

232

213

103

147

103

July

1,300

1,210

1,250

1,170

963

880

823

779

732

695

638

671

579

523

502

506

477

394

318

283

315

321

311

292

299

286

a230

a220

a210

a200

a210

Aug.

a210

a210

h206

a210

a210

a200

a!90

a!80

a!70

a!60

a!55

a!50

149

153

153

149

155

167

157

153

143

149

145

141

147

165

178

IriG

241

178

163

Mean

375

387

365

1,216

288

2,186

Sept.

153

153

151

149

147

161

170

196

235

258

221

174

163

198

261

258

428

510

523

544

579

584

579

579

308

211

208

216

165

153

-

Runoff in 

acre-feet

23,080

23,010

22,430

880,600

17,100

1,588,000

a Ho gage-height record; discharge computed on basis of records at Harrows Dam. 

h Computed from staff-gage reading.

Hote.- Stage-discharge relation affected by backwater from Feather River Jan. 8-10, Mar. 25, 26, 

Apr. 11-13, Apr. 18 to May 12; discharge computed on basis of records at Narrows Dam.
FEATHER RIVER BASIN 353

Milton-Bowman tunnel at outlet, Calif.

Location.- Water-stage recorder and concrete control, lat. 39°28', long. 120°37', in sec. 

3, T. 18 N., R. 12 E., near upper end of Bowman Lake. Altitude of gage, about 5,600 

feet (from topographic map).

Records available.- May 1928 to September 1930, October 1931 to September 1948. 

Average discharge.- 19 years (1928-30, 1931-48), 72.3 second-feet.

Extremes.- Maximum daily discharge during year, 456 second-feet May 16; minimum daily, 

1.4 second-feet Oct. 14-16, 19-26.

1928-30, 1931-48: Maximum daily discharge, 492 second-feet Feb. 11, 1941; minimum 

daily, 0.4 second-foot Oct. 7, 1944.

Remarks.- Records good except those above 300 second-feet and those for periods of no gageheight record, which are fair. Tunnel diverts from Middle Fork Yuba River at Milton, 

in sec. 12, T. 19 N., R. 12 E., and discharges into Bowman Lake. During low and medium stages practically entire flow of Middle Fork Yuba River is diverted.

Cooperation.- Water-stage recorder graph and three discharge measurements furnished-by 

Nevada-irrigation District.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

7

8

9

10

11

12

13

14

Ib

16

17

18

19

20

21

22

23

24

2b

26

27

28

29

30

31

Oct.

1.6

1.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

.4

.4

.4

.6

.6

.4

.4

.4

.4

.4

.4

.4

.4

.6

.6

.6

1.6

1.6

Nov.

1.6

1.6

1.6

1.6

1.8

40

38

19

15

18

15

12

12

11

12

12

12

11

12

11

9.6

9.6

9.2

9.2

9.2

9.6

9.9

9.9

10

11

Dec.

11

11

11

11

10

9.9

9.6

9.2

8.9

9.2

9.2

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

9.2

8.9

8.9

8.6

8.6

8.6

8.9

8.6

8.0

8.2

Jan.

8.6

23

48

90

140

138

150

148

142

134

116

97

80

68

61

56

51

49

44

42

40

40

4O

40

38

30

28

30

28

28

27

Feb.

28

25

23

24

24

25

22

23

24

24

21

21

21

22

24

26

27

27

27

27

26

34

33

32

31

32

32

32

27

_

-

Month

December. ..................................

Calendar year 1947 ......................

April ......................................

September . .................................

Water year 1947-48 ... ..................

Mar.

28

28

26

25

26

26

25

26

26

24

24

25

26

26

25

26

24

23

24

20

20

20

25

30

28

26

28

30

30

30

32

Apr.

40

53

53

45

42

40

38

38

50

80

65

55

50

60

1OO

200

420

420

420

420

280

329

248

211

328

295

267

313

264

?02

Secondfoot-days

355 4

285.5

23,001.5

2,054.6

769

802

5,436

9,868

7,177

1,080

239.2

135.3

28,249.7

May

169

166

179

235

329

438

452

368

278

251

295

348

448

452

452

456

398

321

300

280

260

250

290

300

320

325

3O6

300

3OO

300

302

Maximum

11

450

150

38

32

420

456

302

95

10

6.0

456

June

298

295

298

302

298

295

302

302

292

292

295

288

284

281

257

245

248

245

241

238

226

200

187

182

176

133

108

123

125

121

-

Minimum

8.0

1.4

8.6

21

20

38

166

108

10

6.2

3.5

1.4

July

95

85

82

73

55

48

50

49

46

44

42

39

38

35

34

32

30

27

24

18

17

14

14

13

13

12

11

10

10

10

10

Aug.

10

9.9

9.6

9.2

9.2

8.9

8.6

8.2

8.2

8.2

8.2

8.2

8.2

8.0

7.6

7.6

7.4

7.4

7.O

7.0

6.8

6.8

6.8

6.8

6.8

6.8

6.4

6.4

6.4

6.4

6.2

Mean

1.54

9.21

63. 0

66.3

26.5

25.9

181

318

239

34.8

7.72

4.51

77.2

Sept.

6.O

5.7

5.

5.

5.

5.

5.'

5.

5.

4.

4.

4.

4.

3.!

3.

3.

3.

3.

3.

3.

4.

4.

4.

4.:

4.

4.

4.

4.

4.

4.

-

Runoff in 

acre feet

95

705

566

45,620

4,080

1,530

1,590

10,780

19,570

14,240

2,140

474

268

56,040

Note.- No gage-height record Mar. 20-30, Apr. 4-21, May 19-30; discharge computed on basis of recorded range in stage and records for Middle Fork Yuba River at Milton, Middle Fork Yuba River above 

Oregon Creek, and South Fork Yuba River near Cisco.
FEATHER RIVER BASIN

Oregon Creek near North San Juan, Calif.

Location.- Water-stage recorder, lat. 39°24' , long. 121°05' , in SW£ sec. 22, T. 18 N., R. 

8 K. , 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 1948. October 1910 to September 19S3 at 

site U.7 mile downstream .

Average discharge.- 37 years (1911-4 73.9 second-feet.

Extremes.- Maximum discharge during year, 1,050 second-feet Apr. 17 (gage height, 6.68 

feet); minimum, 2.2 second-feet Oct. 1, 2 (gage height, 1.54 feet).

1910-48: 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, 0.7 second-foot on several days in July, August 1931, September 

1934.

Remarks.- Records excellent. Small diversions above station for irrigation and mining. 

Revisions (water years] .- w 861: 1927(11), 1928.

Rating table, water year 1947-48 (gage height, in feet 

and discharge, in second-feet)

3.0 

3.3 

3.6 

4.0

4.4

128

185

254

4.8 342

5.4 511

5.8 650

6.3 860

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.3 

2.3 

2.5 

2.5 

2.5

2.5 

4.3 

9.2 

6.9 

17

20 

8.2 

5.5 

5 

4.8

91 

33

14 

10 

12

22 

15 

12 

9.5 

8.5

7.5 

6.9 

8.2 

51 

42 

22

Nov.

30 

34 

24 

22 

23

18

16 

14 

12 

11

10 

9.8 

9.2

8.8 

ll

12 

9.8 

9.2 

8.5

7.8

7.5 

7.8 

7.5 

7.8 

7.8

7.5 

7.2 

7.2 

6.9 

6.6

Dec.

6.9 

6.9

6.6 

8.5 

8.2

6.9 

6.9 

6.9 

6.3 

6.3

6.6 

6.3 

6.3 

6.3 

6.6

6.0 

9.8 

8.8 

7.8 

7.8

8.8 

12 

10 

9.5

8.8

8.2 

7.8 

8.5 

8.5 

7.2 

7.2

Jan.

12 

338 

194 

321 

270

176 

376 

404 

202 

138

101 

78 

63 

53 

46

41 

37 

34 

31 

29

27 

25 

24 

22 

21

20 

18 

18 

18 

16 

16

Feb.

17 

16 

14 

16 

18

18 

14 

17 

21 

21

16 

13 

17 

17 

22

28 

29 

30 

30 

29

28 

40 

45 

38 

34

32 

30 

34 

30

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

nber.. ....................... .........

nber.. .................................

Lendar year 1947 

ary

h. .....................................

1. ...................................

ember. .................................

ter year 1947-48 ......................

Peak discharge (base, 600 sec. -ft.).- Jan.

Apr. 17 (4:30 a.m.) 1,050 sec. -ft.; Apr. 22

liar.

29 

28 

27 

26 

25

24 

23 

26 

26 

26

24 

26 

64 

76 

53

59 

57 

56 

64 

53

47 

49 

83 

180 

118

91 

95 

97 

100 

123 

131

Apr.

141 

184 

264 

206 

182

178 

145 

141 

417 

622

344 

254 

217 

219 

260

419 

842 

548 

404 

344

362 

535 

485 

362 

303

268 

377 

362 

323 

307

May

274 

243 

228 

222 

221

230 

237 

209 

184 

160

147 

138 

140 

141 

132

124 

124 

136 

158 

188

172 

145 

131 

123 

117

107 

102 

95

105 

93

forays Maximum

460.1 91 

373.9 34 

239.2 12

13,226.0 880

3,169 404 

714 45 

1,906 180 

10,015 842 

4,912 274 

1,237 81 

355.4 18 

147.6 6.0 

104 . 3 4.3

23,633.5 842

7 (8 p.m.) 842 sec. -ft 

2 a.m.) 608 sec. -ft.

June

81 

76 

70 

69 

68

61 

56 

55 

52 

47

45 

43 

41 

39 

36

35 

34 

32 

31 

29

29 

27 

26 

25 

24

23 

23

21 

20 

19

Minimum

2.3 

6.6 

6.0

1.9

12 

13 

23 

141 

86 

19 

6.0 

3.6 

3.0

2.3

July

18 

18 

17 

16 

17

17 

16 

16 

15 

14

13 

13 

13 

13

12

11 

10 

9.5 

9.5 

9.2

8.5 

8.2 

7.2 

7.2 

7.5

7.2 

6.9 

6.6 

6.6 

6.0 

6.3

Aug.

6.0 

5.2 

5.5 

5.8 

5.5

5.2 

5.2 

5.0 

5.0 

5.0

5.0 

5.0 

5.2 

5.2 

5.0

4.5 

4.3 

4.3 

4.5 

4.5

4.8 

4.8 

4.8 

4.5 

4.3

4.3 

4.0 

4.0 

3.8 

3.8 

3.6

Sept.

3.6 

3.6 

3.4 

3.2 

3.4

3.4 

3.4 

3.4 

3.2 

3.2

3.2 

3.2 

3.0 

3.0 

3.0

3.0 

3.4 

3.6 

3.4 

3.4

3.4 

3.6 

3.8 

3.8

4.0

4.0 

4.0 

4.3 

3.8 

3.6

Moan Runoff in Mean acre-feet

14.8 913 

12.5 742

7.72 474

36.2 26,220

102 6,290 

24.6 1,420 

61.5 3,780 

334 19,860 

158 9,740 

41.2 2,450 

11.5 705 

4.76 293

64.6 46.870

.; Apr. 10 (5-.3Q a.m.) 838 sec. ft
FEATHER RIVER BASIN 355

North Fork Yuba River below Goodyear? Bar, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 120°56", In SWi sec. 11, T. 19 N., 

RTTTE. , 3.5 miles downstream from Goodyears Creek and 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 1948.

Average discharge.- 15 years {1931-37, 1939-48), 707 second-feet.

Extremes.- Maximum discharge during year, 5,720 second-feet Apr. 17 (gage height, 9.88 

feet); minimum, 94 second-feet Oct. 6.

1930-48: Maximum discharge, 26,000 second-feet Dec. 11, 1937 (gage height, 19.0 

feet, from floodmarks), from rating curve extended above 6,000 second-feet on basis of 

drift-velocity measurement at 18,000 second-feet; minimum, 69 second-feet Aug. 26, 1931.

Remarks . - Records excellent. Several small diversions above station for irrigation and 

mining .

Revisions (water years) .- W 1041: 1944.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.4 91 2.7

1.6 107 3.0

1.8 127 3.5

2.1 162 4.0

2.4 207 4.5

260

320

440

588

775

5.0 

5.5 

6.0 

6.5 

7.0

1,000

1,260

1,570

1,950

2,380

2,850

3,370

3,940

4,940

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

99 

101 

101 

100 

98

97 

119 

152 

129 

231

226 

145 

129 

124 

129

913 

403 

221 

182 

186

255 

209 

182 

169 

158

154 

149 

151 

421 

422 

296

Nov.

324

340 

278 

292 

316

260 

238 

228 

216 

199

196 

186 

182 

179 

188

196 

184 

178 

169 

161

160 

156 

155 

157 

158

158 

158 

160 

161 

166

Dec.

168 

158 

157 

163 

156

150 

154 

152 

146 

150

149 

146 

145 

145 

145

143 

152 

146 

145 

145

148 

160 

151 

148 

146

145 

144 

151

146 

138

139

Jan.

150 

866 

708 

1,920 

1,970

1,410 

2,650 

2,830 

1,450 

1,030

787 

666 

582 

520 

479

443 

409 

391 

362 

349

335 

322 

316 

308 

296

262 

262 

266 

262 

255 

249

Feb.

251 

242 

226 

242 

244

238 

224 

228 

240 

229

214 

212 

216 

216 

256

282 

284 

280 

274 

266

258

374 

353 

308 

296

290 

286 

294 

270

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri

MJW

June 

July

Augu 

Sept

Wa

ber.............. ......................

mber....... .............................

lendar year 1947 ......................

ary

h. ................. ...................

1. ......... ...........................

St... ..................................

ember . .................................

ter yeai 1947 48 .......................

Peak discharge (base, 2,300 sec. -ft.). - J

sec. -ft.; Apr. 17 I? a.m.) 5,720 sec. -ft.; M 

sec. -ft.; May 26 (9 p.m.) 3,720 sec. -ft.; Ju

Mar.

264 

264 

253 

244 

246

240 

235 

247 

246 

235

229 

237 

296 

308 

290

314 

314 

314 

327 

296

288 

306 

409 

547 

468

424 

476 

508 

508 

605 

626

Apr.

673 

820 

961 

815 

751

735 

640 

619 

1,350 

1,490

1,110 

896 

838 

955 

1,450

2,370 

4,940 

3,360 

2,520 

2,370

2,330 

2,230 

2,010 

1,720 

1,730

1,750 

1,930 

1,930 

1,740 

1,590

Secondfoot-days

6,451 

6,099 

4,631

150,185

23,105 

7,593 

10,564 

48,623 

61,050 

45,250 

12,212 

6,002 

4,317

235,897

in. 4 (4:30 

iy 6 (10 p.m 

le 2 (9 p.m.

May

1,440 

1,360 

1,360 

1,560 

1,920

2,490 

2,550 

1..880 

1,630 

1,500

1,560 

1,680 

2,160 

2,150 

2,170

2,470 

2,540 

2,140 

1,780 

1,700

1,480 

1,470 

1,720 

2,160 

2,610

2,930 

2,690 

2,160 

1,850 

2, '060 

1,880

Maximum

913 

340 

168

4,260

2,830 

374 

626 

4,940 

2,930 

2,320 

727 

237 

155

4,940

June

1,920 

2,200 

2,320 

2,130 

1,860

1,890 

2,010 

2,140 

2,200 

2,010

1,930 

1,770 

1,610 

1,530 

1,460

1,390 

1,320 

1,280 

1,250 

1,230

1,190 

1,120 

1,080 

1,050 

1,010

965 

918 

860 

824 

783

Minimum

97 

155 

138

97

150 

212 

229 

619 

1,360 

783 

242 

157 

135

97

July

727 

669 

619 

582 

550

526 

511 

490 

468 

443

427 

435 

393 

378 

362

353 

342 

329 

320

312

308 

296 

286 

280 

274

268 

264 

258 

253 

247 

242

Aug.

237 

233 

231 

226 

222

219 

216 

212 

210 

209

205 

202 

197 

194

193

190 

186 

185 

184 

180

178 

179 

184

179 

173

169 

168 

165 

161 

158 

157

Mean

208 

203

149

411

745 

262 

341 

1,621 

1,969 

1,508 

394 

194 

144

645

p.m.) 2,880 sec. -ft.; Jan. 7 (7 p 

.) 3,180 sec. -ft.; May 16 (9:30 p 

) 2,800 sec. -ft.

Sept.

155 

152 

151 

150 

149

149 

146 

145 

144 

143

140 

139 

138 

137 

136

135 

140 

143 

143 

140

139 

140 

142 

149 

152

151 

148 

143 

140 

138

Runoff in 

acre-feet

12,800 

12,100 

9,190

297,900

45,830 

15,060 

20,950 

96,440 

121,100 

89,750 

24,220 

11,900 

8,560

467,900

m.) 4,690 

m.) 3,190
356 FEATHER RIVER BASIN

North Fork'Yuba River at Colgate diversion dam, Calif.

Location.- Water-stage recorders, lat. 39°23', long. 121°09' , near center of sec. 25, T. 

18 N. , R. 7 E.; one recorder 200 feet upstream from Colgate diversion dam, another at 

intake of Colgate tunnel; both 1.5 miles upstream from Middle Fork Yuba River and 1.5 

miles dowstream from Bullards Bar Dam. Altitude of gages, about 1,250 feet (from 

topographic map) .

Drainage area.- 484 square miles .

Records available.- December 1940 to September 1948.

Extremes.- Maximum discharge during year, 15,200 second-feet Apr. 17; minimum daily, 61 

second-feet Oct. 4.

1940-48: Maximum discharge, 44,200 second-feet Jan. 21, 1943, from rating curve 

extended above 23,000 , second-feet - on basis of velocity area studies ana computation

flows over Bullards Bar Dam; minimum daily, 50 second-feet Oct. 8, 1944.

of

Remarks.- Records good. Discharge is combined flow of spill over Colgate diversion dam 

and diversion through Colgate tunnel. Flow slightly regulated by Bullards Bar Reservoir. No large diversion above station.

Cooperation.- Discharge for Colgate tunnel furnished by Pacific Gas & Electric Co. 

Discharge, in second-feet, water year October 1947 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.

254

185

143

61

63

243

220

178

190

144

66

63

136

158

245

464

643

442

326

496

632

632

633

456

335

335

333

318

273

338

502

Nov.

635

643

643

643

480

338

337

315

306

435

630

630

630

426

68

74

274

361

363

361

34O

143

103

298

364

332

70

242

69

65

-

Dec.

296

385

379

385

371

80

73

302

477

389

364

267

73

72

273

262

286

360

440

335

335

348

278

279

79

168

68

69

354

369

353

Jan.

74

607

2,350

3,310

5,460

3,520

5,190

7,150

3,600

2,400

1,780

1,450

1,210

1,060

956

880

803

749

70O

661

653

657

651

651

635

643

643

643

641

607

330

Feb.

330

547

627

627

633

617

625

463

509

561

463

466

458

328

328

460

453

463

474

506

617

615

615

613

619

625

613

589

613

_

-

Month

October ....................................

November . ..................................

December. ..................................

Calendar year 1947 ..................

January ................................. .

February. ..................................

March. ................................ ...

April ......................................

May. .......................................

June .......................................

July. .................... .................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

569

460

453

462

460

180

82

418

470

463

465

473

480

626

633

633

633

641

641

641

633

633

657

1,420

1,390'

1,130

1,100

1,190

1,180

1,320

1,480

Apr.

1,590

1,990

2,620

2,260

2,020

1,940

1,660

1,530

3,710

5,340

3,640

2,740

2,420

2,500

3,480

5,030

11,500

7,760

5,610

5,290

5,290

5,880

5,390

4,360

4,040

4,270

4,580

4,900

4,430

4,080

-

Secondfoot-days

9,507

10,618

8,569

292,508

50,664

15,457

22,016

121,850

121,350

69,440

17,484

11,103

10,252

468,310

May

3,540

3,320

3,320

3,380

3,960

4,920

5,700

4,250

3,660

3,380

3,220

3,400

3,810

4,340

3,960

4,450

4,940

4,380

3,830

3,620

3,360

3,040

3,260

3,770

4,380

4,850

4,830

4,000

3,380

3,540

3,560

Maximum

643

643

477

10,100

7,150

633

1,480

11,500

5,700

3,770

1,050

378

449

11,500

June

3,220

3,520

3,770

3,640

3,240

2,980

3,160

3,220

3,280

3,160

2,790

2', 780

2,430

2,340

2,210

2,090

1,980

1,900

1,820

1,790

1,740

1,660

1,550

1,500

1,440

1,380

1,320

1,240

1,180

1,110

-

Minimum

61

65

68

61

74

328

82

1,530

3,040

1,110

360

320

266

61

July

1,050

985

899

830

780

764

729

704

676

652

644

561

541

550

540

517

485

479

441

416

423

419

415

392

375

374

372

380

364

367

360

Aug.

362

360

358

364

364

364

349

354

378

378

370

360

372

360

360

362

372

369

365

367

370

370

350

339

335

335

335

333

320

36i

364

Mean

307

354

276

801

1,634

533

710

4,062

3,915

2,315

564

358

342

1,280

Sept.

364

383

386

370

365

370

391

440

449

442

374

370

392

373

347

315

294

280

270

272

320

317

299

282

310

295

314

312

290

266

-

Runoff in 

acre feet

18,860

21,060

17,000

580,200

100,500

30,660

43,670

241,700

240,700

137,700

34,680

22,020

20,330

928,900
FEATHER RIVER BASIN 357

South Fork Yuba River near Cisco, Calif.

Location.- Water-stage recorder, lat. 39°19', long. 120°33 T , in sec. 19, T. 17 N., R. 13 

K., 0.5 mile downstream from Rattlesnake Creek, 1 m^le west of Cisco Qrove, and 1.2 

miles northwest of Cisco. Altitude of gage, about 5_500 feet (from topographic map).

Drainage area.- 50.2 square miles.

Kecords available.- April 1942 to September 1948.

extremes.- Maximum discharge during year, 2,120 second-feet Jan. 7 (gage height, 7.82 

feetJ; minimum, 13 second-feet Nov. 23.

1942-48: Maximum discharge, 6,080 second-feet Jan. 21, 1943 (gage height, 12.35 

feet, former site), from rating curve extended above 2,100 second-feet by logarithmic 

plotting; minimum, 0.8 second-foot Oct. 5-8, 1945.

Remarks.- Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. Low flow regulated by Lake Van Norden.

Hating table, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

3.2 

3.5 

4.0 

4.5 

5.0

122

189

322

485

670

5.6 

6.0 

6.6

915

1,100

1,410

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

?,

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

1R

19

20

21

22

23

24

2f>

26

27

28

29

30

31

Oct.

19

19

18

16

16

16

19

20

20

29

30

21

19

19

20

425

82

39

31

36

53

43

32

27

25

24

23

25

88

80

76

Nov.

104

80

66

69

58

49

44

35

32

27

25

21

a20

al9

a28

30

28

27

23

20

18

b!7

16

16

18

23

28

29

34

39

-

Dec.

36

26

25

25

21

21

21

19

18

19

18

18

16

18

17

16

18

b!7

17

17

17

18

17

16

16

17

17

b!8

bl6

b!6

15

Jan.

16

156

184

731

490

368

1,150

800

337

211

147

118

98

88

82

77

70

64

55

52

51

52

68

68

62

b55

b45

42

38

37

34

Feb

34

b30

b29

28

29

29

b28

27

28

28

27

26

26

27

30

39

45

47

44

44

43

76

74

56

50

63

64

56

49

-

-

Month

December ....................................

Calendar year 1947 ......................

March. .....................................

May. .......................................

September ..................................

Water year 1947-48 ......................

liar.

48

45

b40

b40

40

39

39

43

40

39

39

40

43

42

41

40

39

b40

39

b40

39

47

49

42

48

48

58

71

68

64

74

Apr.

130

177

120

82

74

69

68

69

154

111

86

82

86

186

337

575

,150

782

621

647

609

441

310

492

598

535

499

461

334

259

-

Secondfoot-days

586

44,115

1,044

66,658

May

218

236

316

510

798

1,100

909

478

374

397

546

702

1,000

920

996

1,210

942

594

414

340

304

417

784

1,130

1,320

1,410

1,070

738

602

674

3580

Maximum

36

1,030

42

1,410

June

a760

a980

al,050

a950

a700

884

946

1,020

1,060

818

782

682

682

694

651

602

576

532

448

496

499

451

434

424

365

301

313

286

254

220

Minimum

15

15

16

15

July

a!70

a!30

111

92

77

68

62

44

39

32

40

39

32

28

27

27

53

53

52

50

53

52

51

50

49

49

48

47

46

46

45

Aug.

44

44

44

44

43

42

 45

45

44

44

44

43

42

44

44

44

43

42

40

39

47

47

45

43

47

44

41

38

37

36

Mean

18.9

121

34.8

182

Sept.

36

36

35

35

34

34

34

34

34

34

42

42

41

41

40

40

40

40

40

39

39

39

41

42

28

27

18

16

Runoff in 

acre-feet

1,160

87,500

2,070

132,200'

Peak discharge (base, 1,500 sec.-ft.).- Jan. 7 (6:30 p.m.) 2,120 sec.-ft.; May 6 (8:30 p.m.) 1,550 

sec.-ft.; May 16 (8 p.m.).1,800 sec.-ft.; May 25 (9 p.m.) 2,110 sec.-ft.

a No gage-height record; discharge computed on basis of records for Rubicon River near Georgetown, 

b Stage-discharge relation affected by ice.

889419 O - 50 - 24
358 FEATHER RIVER BASIN

South Fork Yuba River near Washington, Calif.

Location.- Water-stage recorder, lat. 39°22', long. 120°46', in sec. 8, T. 17 H., R. HE., 

1 mile downstream from Canyon Creek and 1.7 miles east of. Washington. Altitude of. gage, 

about 2,750 feet (from topographic- map).

Drainage area.- 198 squ&j. mij.es.

Records available.- March 1942 to September 1948.

Extremes.- Maximum discharge during year, 3,780 second-feet June 4 (gage height, 7.79 

feet); minimum, 14 second-feet Sept. 15, 16.

1942-48: Maximum discharge, 20,300 second-feet Jan. 21, 1943 (gage height, 13.8 

feet), from rating curve extended above 6,600 second-feet by logarithmic plotting; minimum, that of Sept. 15, 16, 1948.

Remarks.- Records good. Flow regulated by Lake Spaulding (capacity, 70,500 acre-feet), 

Bowman Lake (see p.360), and by many smaller reservoirs. Diversion for power and irrigation above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

18

19

19

19

18

19

24

28

22

48

58

28

23

22

22

213

73

39

30

41

63

41

33

30

28

27

26

33

149

78

50

Nov.

74

76

56

54

57

46

44

38

35

33

32

30

a30

a3O

a45

42

36

33

31

30

30

30

28

28

29

32

30

28

27

26

Dec.

26

26

26

29

28

28

26

26

27

27

27

26

25

24

24

25

29

28

27

27

25

27

26

25

23

22

22

22

22

22

22

Jan.

23

313

195

"270 401

176

524

436

215

159

124

107

93

86

79

81

77

68

67

66

69

66

65

66

62

65

55

51

54

54

51

-Feb.

46

47

47

49

54

52

49

48

49

54

45

43

42

42

53

71

71

66

64

60

55

102

102

68

58

55

54

55

53

-

Month

October. ...................................

November ...................................

December ....................................

Calendar year 1947 ......................

January. ...................................

February. ..................................

March. ......................................

April ......................................

May. .......................................

June .......................................

July........ ...............................

August .....................................

September ..................................

Hater year 1947-48 ......................

Mar.

53

48

47

46

44

43

42

44

43

43

41

41

62

77

65

71

75

74

78

69

66

77

121

183

135

120

144

151

148

161

159

Apr.

180

237

282

197

173

170

147

164

455

383

262

222

210

262

372

622

1,110

553

412

455

445

579

495

400

386

362

498

430

389

365

Secondfoot-clays

1,341

1,140

789

29,408

4,218

1,654

2,571

11,817

32,150

39,028

1,379

507

478

96,472

May

336

328

328

344

381

430

456

775

415

341

570

958

1,740

1,910

1,660

2,220

2,270

1,390

923

790

543

498

1,100

1,770

2,170

1,840

1,790

867

823

1,260

924

Maximum

213

76

29

1,540

524

102

183

1>110

2,270

2,870

308

19

18

2,870

June

923

1,920

2,380

2,750

1,740

1,520

2,430

2,600

2,870

2,430

1,980

2,120

1,480

1,550

1,210

855

613

838

975

1,100

865

842

461

445

658

604

375

220

152

122

Minimum

18

26

22

17

23

42

41

147

328

122

19

15

14

14

July

131

308

217

54

40

ZT

34

33

31

31

29

28

27

26

25

24

23

22

21

20

20

20

20

20

20

20

20

20

20

19

19

Aug.

19

18

18

17

17

17

17

16

16

16

16

16

15

15

15

15_

15

15

16

16

16

16

16

16

16

16

16

17

17

18

18

Mean

43.3

38.0

25.5

80.6

136

57. 0

82.9

374

1,037

1,301

44.5

16.4

15.9

264

Sept.

18

18

18

18

17

17

17

17

17

16.

15

15

15

15

14

14

15

15

15

15

15

15

15

16

16

16

16

16

16

16

-

Runoff in 

acre-feet

2,660

2,260

1,560

58,320

8,370

3,280-

5,100

22,250

63,770

77,410

2,740

1,010

948

191,400

a No gage-height record; discharge computed on basis of records for station at Jones Bar.
FEATHER RIVER BASIN 359

South Fork Yuba River at Jones Bar, Calif.

Location.- Water-stage recorder, lat. 39°18', long. 121°07', near center of west side of 

sec. 32, T. 17 N., R. 8 E., at Jones Bar Bridge, 250 feet upstream from Rush Creek and 

5 miles northwest of Nevada City. Altitude of gage, about 1,050 feet (from topographic 

map).

Drainage area.- 340 square miles.

Records available.- October 1940 to September 1948 (discontinued).

Extremes.- Maximum discharge during year, 4,160 second-feet June 4 (gage height, 9.88 

reet); minimum, 1.6 second-feet Oct.T., 2, 5, 6, 7.

1940-48: Maximum discharge, 16,500 second-feet Jan. 22, 1943 (gage height, 17.60 

feet); minimum, 1.0 second-foot Sept. 10-13, 1944.

Remarks.- Records good. Discharge not computed for periods of no gage-height record, 

storage and diversion above station for power and irrigation. See "Remarks" for .South 

Fork Yuba River near Washington.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

Z

3

4

b

6

7

9

10

11

12

14

15

16

18

19

21

22

24

26

28

30

31

Oot.

1.6

1.7

1.8

1.8

1.7

1.6

6.4

32

16

47

82

41

21

17

15

289

193

63

41

48

112

78

60

53

48

45

43

43

149

229

100

Nov.

110

178

113

92

100

88

78

76

69

66

66

64

63

62

68

77

69

66

64

63

63

62

62

62

62

62

62

62

62

61

Dec.

61

61

61

62

62

61

61

61

61

61

60

60

60

60

60

60

63

64

62

62

62

63

63

63

62

62

62

62

62

61

61

Jan.

61

483

463

544

616

380

795

1,060

468

-

.

.

_

_

-

_

_

_

120

112

115

115

110

107

102

98

92

80

81

81

87

Feb.

77

77

78

80

89

95

78

81

101

124

95

84

91

88

108

163

165

154

150

136

124

154

224

154

133

122

117

124

120

_

-

Month

December. ..................................

Calendar year ......................

April ......................................

May. .......................................

Jnly. ......................................

September. .................................

Water year ......................

Mar.

113

107

102

96

94

92

89

92

104

96

92

84

186

309

238

268

276

226

255

212

191

196

322

762

477

374

400

414

388

402

383

Apr.

391

491

765

681

630

674

516

493

1,330

1,740

964

705

623

616

730

1,080

2,460

1,320

952

916

938

1,260

1,240

956

840

791

964

908

912

1,000

Secondfoot-days

1,881.6

2,252

1,906

-

.

3,386

7,440

27,886

41,334

_

544

330.9

-

May

884

794

751

730

748

798

832

1,050

780

654

723

1,040

1,500

2,280

1,810

2,520

2,750

1,700 ,

1,270"

1,190

920

712

1,120

2,000

2,460

2,270

2,170

1,170

928

1,400

Maximum

289

178

64

-

.

224

762

2,460

2,750

_

24

18

-

June

889

2,120

2,700

3,140

2,120

1,400

2,670

2,800

2,920

2,970

2,110

2,340

1,700

1,570

1,310

1,060

606

784

1,010

1,050

888

964

592

543

581

748

350

_

_

_

-

Minimum

1.6

61

60

-

_

77

84

391

654

_

12

8.4

-

July

_

_

-

-

-

_

-

_

-

-

_

_

_

_

-

_

_

36.

37

35.

34

33

32

31

31

29

28

2&

26

26

25

Aug.

24

23

21

21

21

20

20

20

20

21

21

20

18

17

17

16

16

16

15

15

15

15

16

17

17

15

14

14

14

13

12

Mean

60.7

75.1

61.5

-

_

117

240

930

1,333

_

_

17.5

11.0

-

Sept.

12

11

10

9.8

9.8

9.8

10

10

9.8

9.8

9.4

3.1

8.8

8.8

8.4

8.8

9.8

9.8

10

10

10

10

12

13

18

18

15

14

13

13

-

Runoff in 

ao re-feet

3,730

4,470

3,780

-

_

6,720

14,760

55,310

81,980

_

_

1,080

656

-

Note.- No gage-height record Jan. 10-18, June 28 to July 17.
360

Location.- Staff gage, lat. 39°27', long. 120°39', in SW^ sec. 5, T. 18 N., R. 12 E., at 

 Bowman Dam on Canyon Creek, 4 miles east of Graniteville. Datum of gage is 5,000.0

feet above mean sea level (levels by Nevada Irrigation District); gage readings have

been reduced to elevations above mean sea level.

Extremes.- Maximum contents observed during year, 69,900 acre-feet June 4 to July 4 (ele-

 vation, 5,565.1 feet); minimum observed, 2,860 acre-feet Mar , 8 (elevation, 5,444.3 

feet)

'l926-48- Maximum contents observed, 70,500 acre-feet June 16, 17, 1937, June 1, 1943 

(elevation, 5,565.9 feet); contents less than 1;000 acre-feet and, therefore, doubtful 

at times during 1926, 1928-31, 1933-35, 1937, 1939, 1944.

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 Yuba River through 

Milton-Bowman tunnel (see p. 353), and releases it through Bowman-Spaulding Canal (see 

p. 362) which conveys it to reservoirs of Pacific Gas & Electric Co. Water is eventually used for irrigation by Nevada Irrigation District. Record of contents, computed 

from gage readings made at odd times, shows total contents, all of which is available 

for release.

Contents, In acre-feet, water year October 1947 to September 1948

Day Jan. Mar. Apr. May July Aug. Sept.

25,603

24,400

24,003

23,200

14,200

13,203

12,600

12,300

12,103

11,90' 

11,700 

11,500

8,430

8,760

9.760

10,400

12,200

13,203

13,403

13,400

3,330

3,260

3,180

3,060

2,900

6,000

5,100

12,500

12,200

12,100

11,493

11,030

3,000

3,030

3,020

3,020

3,040

3,040

3,060

5,250

5,490

5,760

6,090

6,450

6,sio

8,4^3

9,400

10,500

15,030

15,800

16,600

17,500

18,403

19,300

19,

34,100

35,000

36,100

37,300

38,803

40,700

42,500

45,50

47,600

48,000

48,700

49,403

50,

52,200

53,403

56,200 

57,800 

59,803 

61,200 

63,200 

64,4'

69,900

69,903

69,900

69,900

69,900

69,900

69,903

69,900

69,900

39,903

58,800

58,403

58,003

57., 600

57,200

56,200

55,803

55,403

55,030

54,500

54,100

53,500

53,000

52,500

52,030

51,633

51,100

50,800

50,303

49,700 

49,303 

48,300 

48,4_'3 

48,000

Monthly elevation and contents, water year October 1947 to September 1948

Date

Oct. 51. ......... .....

Calendar year 1947.....

Jan. 31. ............... .

Sept. 30. .................

Water year 1947-48.....

Elevation 

(feet)

4 495 5 '

-

5,537.5

-

Contents 

(acre-feet)

-

48,030

-

Change In contents 

during month 

(acre-feet)

-4,160

-12,800

+15,700

e Interpolated.
FEATHER RIVER BASIN 

Canyon Creek below Bowman Lake, Calif.

361

Location,- Water-stage recorder and concrete control, lat. 39°26', long. 120°40', in SE^

 sec. 7, T. 18 N., Rv 12 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 1927 to September 1948.

Average discharge.- 21 years, 33.4 .second-feet.

Extremes.- Maximum discharge during year, 1,480 second-feet June 4 (gage height, 5.40 

feet); minimum, 0.2 second-foot Oct. 3-6.

1927-48: Maximum discharge, 2,030 second-feet June 1, 1943 (gage height, 5.84 feet) 

maximum gage height, 5.98 feet June 6, 1936; no flow at times when there is no leakage 

from dams above station.

Remarks.- Records good. Plow regulated by Bowman Lake beginning in 1926 (see preceding

 page) and diversion Into Bowman-Spaulding Canal (see following page). Bowman Lake 

receives water from Middle Pork Yuba River through Milton-Bowman tunnel (see p. 353).

Cooperation.- Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1947-48 (gage height, in feet 

and discharge, in second-feet)

1.3

1.4

1.7

1.8

1.9

2.0 

2.2

2.7 

3.0

128

194

4.3 

4.7

302

395

520

665

695

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.4

.3

.2

.2

.2

.2

.3

.5

.5

2.5

1.3

.6

.6

.5

.6

12

2.0

1.4

.9

1.9

1.9

1.2

.9

.6

.6

.6

.6

.6

5,2

2.1

1.2

Nov.

1.8

1.8

1.3

1.2

1.2

1.0

.9

.8

;6

.6

.6

.6

.6

.6

.6

.8

.7

.6

.6

.6

.6

.6

.6

.6

.5

.5

.6

.7

.7

.6

-

Dec.

0.6

.5

.5

.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

2.7

.6

Jan.

0.8

20

3.2

11

4.4

4.2

16

4.8

2.5

2.0

1.7

1.6

1.4

1.4

1.3

1.3

1.2

1.1

1.0

1.0

.9

.9

.9

.9

.8

.8

.7

.6

.8

.9

.9

Feb.

0.9

.8

.8

.8

1.0

.9

.9

.8

.6

.6

.6

.7

.6

.6

.9

1.4

1.6

1.5

1.6

1.5

1.5

3.6

1.8

1.2

1.1

1.3

1,3

1.2

1.0

_

-

Month

December. ...................................

Calendar year 1947 ......................

March. .....................................

April. .....................................

May. .......................................

September ..................................

Water year 1947-48 ......................

Mar.

0.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.0

.9

.8

.8

.8

.8

.8

.8

1.0

1.5

2.2

1.5

1.1

1.6

1.6

1.7

2.2

2.3

Apr.

3.1

3.7

2.3

2.0

1.6

1.4

1.1

1.6

7.0

2.9

1.9

1.8

1.9

4.8

7.0

15

15-

3.8

3.5

3.8

3.2

3.2

a3.3

3.4

4.2

3.0

5.7

3.9

2.8

2.2

-

Secondfoot-days

23 5

20.5

363.5

33 1

9.0

13,592.7

May

2.1

2.6

3.4

4.0

4.9

5.0

3.6

2.7

2.4

2.4

2.7

2.8

3.4

2.5

2.4

2.2

2.1

2.3

2.6

3.2

2.5

1.8

1.6

1.4

1.2

1.3

1.4

1.5

1.3

3.4

2.1

Maximum

2.7

36

.3

869

June

1.4

67

114

869

610

502

720

758

720

748

698

687

560

493

534

468

336

378

392

459

395

392

360

342

345

310

167

37

44

66

Minimum

.5

.2

.3

.2

July

116

254

151

12

4.6

2.1

1.1

1.0

.9

.8

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.4

.4

.6

.7

.6

.6

.5

.5

Aug.

0.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Mean

.66

1.00

.30

37.1

Sept.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Runoff in 

acre-feet

41

723

£08

18

26.960

a No gage-height record; discharge interpolated.
362 FEATHER RIVER BASIN

Bowman-Spaulding Canal at Intake, Calif.

Location.- Water-stage recorder, lat. 39°27', long. 120°39', in sec. 8, T. 18 N., R.

12 K., 150 feet downstream from intake and 0.2 mile downstream from Bowman Dam. Altitude of gage, about 5,400 feet (from topographic map).

Records available.- October 1927 to September 1948. 

Average discharge.- 21 years, 146 second-feet.

Extremes.- Maximum daily discharge during year, 240 second-feet July 22, 23, 25; minimum 

daily, 0.2 second-foot June 22 to July 1.

1927-48: Maximum daily discharge, 262 second-feet Aug. 2-9, 29, Sept. 10-13, 1928; 

no flow at times during each year except 1943, 1944, 1945, 1948.

Remarks.- Records good except those below 10 second-feet, which are fair. Canal diverts 

from left, bank of Canyon Creek below Bowman Lake. Water is delivered to Lake Spaulding and, after passing through several powerhouses, is used for irrigation in Nevada 

Irrigation district.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished by 

Nevada irrigation District.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

236

236

235

234

233

233

232

233

234

234

234

235

235

235

236

\rz191

224

224

227

230

233

234

234

233

233

234

234

202

218

233

Nov.

235

235

234

234

235

235

235

234

234

234

234

234

234

234

234

234

235

235

235

235

234-

234

235

235

234

234

234

235

236

235

Dec.

233

234

234

234

219

146

146

146

146

145

146

146

146

145

145

145

145

144

144

145

144

143

144

146

145

146

146

146

145

145

107

Jan.

84

83

82

39

51

123

99

91

156

182

197

206

219

223

224

223

223

223

226

228

228

227

228

228

228

218

206

218

212

214

215

Feb.

213

214

221

226

230

228

213

221

216

216

217

221

222

220

218

218

225

225

227

226

225

218

200

202

166

58

50

58

66

-

Month

December. ...................................

Calendar year 1947 ......................

Maroh. .....................................

May. .......................................

September. .................................

Water year 1947-48 ............. ........

Mar.

82

100

105

100 100'

80

52

50

50

50

51

52

52

62

74

54

54

54

54

54

 54

54

54

76

102

98

80

80

80

80

58

Apr.

4.5

18

42

42

42

42

42

44

47

44

20

4.2

13

20

7.7

10

8.9

4.5

4.5

a6.0

a6.0

a6.5

6.0

6.2

7.0

5.4

8.5

6.8

6.0

5.2

-

Secondfoot-days

7,071

7,035

4,891

52,884.4

5,604

5,660

2,146

529.9

682.0

1,407.8

6,656.2

6,921

7,040

55,643.9

May

5.1

5.8

7.0

7.7

8.7

8.7

7.9

8.3

8.3

7.5

7.5

8.3

9.3

9.9

10

11

12

14

18

19

36

44

46

49

46

28

28

47

65

58

41

Maximum

236

236

234

240

228

230

105

47

65

101

240

227

236

24O

June

59

72

78

68

82

100

100

101

101

75

69

76

78

74

26

27

23

27

57

49

64

e.2

e.2

e.2

e.2

e.2

e.2

e.2

e.2

e.2

-

Minimum

172

234

107

0

39

50

50

4.2

5.1

.2

.2

219

231

.2

July

eO.2

127

126

232

235

235

234

236

236

236

236

236

236

161

237

237

238

238

239

239

239

240

240

239

240

239

232

222

224

224

223

Aug.

223

223

222

222

222

221

219

221

223

223

223

222

.221

220

219

220

224

225

226

224

224

224

227

226

226

225

224

226

227

227

Mean

228

234

158

145

181

.95

69.2

17.7

22.0

46.9

215

223

235

152

Sept . 

232

231

236

236

235

234

234

235

236

235

234

234

235

234

234

235

236

236

236

236

236

236

235

232

233

236

235

234

234

~

Runoff in 

aore-^eet

14,030

13,950

9,700

104,900

11,120

11,230

4,260

1,050

1,350

2,790

13,200

13,730

13,960

110,400

a No gage-height record; discharge omputed on basis of range of stage.

e Intake gates closed; discharge computed on basis of field estimate made on June IS when gater 

were closed.
FEATHER RIVER BASIN 363

Deer Creek near Smartville, CalJf.

Location.- Water-stage recorder, lat, 39 0 13'20", long. 121°16'00". in sec. 23, T. 16 N., 

H. fcj K. , 1 mile upstream from mouth and 2 miles northeast of Smartville. Altitude of 

gage, about 500 feet (from topographic map).

Drainage area.- 83.5 square miles.

Records available.- June 1935 to September 1948.

Average discharge.- 13 years, 152 second-feet.

Extremes.- Maximum discharge during year, 3,440 second-feet Jan. 7 (gage height, 8.17 

feet); minimum, 1.7 second-feet Oct. 5.

1935-48: Maximum discharge, 11,300 second-feet Mar. 9, 1943 (gage height, 13.62 

feet), from rating curve extended above 5',200 second-feet by logarithmic plotting; 

minimum, 0.1 second-foot Aug. 4-6, 15, 1940.

Remarks.- Records good. Flow partly regulated by Deer Creek Reservoir (capacity 1,400 

acre-feet). Diversions above station for power and irrigation. At times water from 

South Fork Yiiba River is diverted into Deer Creek above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.8

1.9

2.0

1.8

1.8

2.2

4.4

9.0

13

36

50

36

23

19

16

195

97

30

21

21

25

20

19

18

14

11

10

12

97

51

36

Nov.

171

144

53

35

45

40

41

35

22

18

23

20

24

31

36

33

25

30

30

29

29

30

22

18

24

30

29

21

25

19

Dec.

18

25

30

33

33

27

24

19

26

31

S.Q

31

33

25

22

27

45

42

35

37

33

28

30

30

29

21

19

18

18

17

24

Jan.

34

408

303

252

267

148

1,100

472

203

137

72

58

56

51

54

48

46

37

33

36

59

83

87

79

31

22

19

19

22

21

21

Feb.

21

19

19

22

26

48

38

30

125

89

42

53

^9

28

29

30

28

27

25

24

24

23

24

22

21

20

20

29

29

_

-

Month

October ....................................

November ...................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

Hav may ........................................

June .......................................

July... ....................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

24

23

22

20

20

19

16

18

28

21

18

19

285

356

199

284

188

92

182

79

59

48

309

1,260

376

195

120

90

74

61

56

Apr.

55

63

215

460

288

316

146

126

612

904

279

165

128

116

116

231

643

189

132

108

262

373

229

140

105

92

105

112

176

313

-

Secondfoot days

894.9

1,132

860

21,121.4

4,278

944

4,561

7,199

4,340

1,411.1

434.1

156.1

173.6

26,383.8

May

154

115

100

92

83

70

6t

98

148

174

188

161

137

99

86

78

78

128

231

405

291

207

150

125

118

124

120

113

113

161

132

Maximum

195

171

45

2,180

1,100

125

1,260

904

405

120

51

7.8

28

1,260

June

120

115

99

84

82

78

74

71

72

64

48

38

33

33

34

34

32

30

28

29

30

20

16

7.1

14

22

23

22

20

39

-

Minimum

1.8

18

17

1.4

19

19

16

55

61

7.1

6.1

2.5

3.0

1.8

July

24

16

14

19

24

16

14

13

11

10

10

12

13

14

22

51

18

9.0

10

12

').4

9.4

9.0

14

14

11

8.7

7.1 6 

6.8

6.6

Aug.

6.3

6.6

6.3

5.9

5.4

5.2

4.5

4.2

5.0

6.8

4.7

3.8

3.3

3.2.

3.0

3.2

3.0

6.7

2.6

2.5

4.8

7.8

7.1

6.1

6.1

6.3

6.6

6.8

4.0

4.7

3.6

Mean

28.9

37.7

27.7

57.9

138

32.6

147

240

140

47.0

14.0

5.04

5.79

72.1

Sept.

3.0

3.8

5.0

5.4

5.2

5.2

5.6

6.6

28

8.4

6.6

5.0

4.5

4.2

3.6

4.0

4.2

3.9

3.9

3.9

3.8 4. '

5.6

6.3

6.8

5.9

5.4

5.2

5.2

4.7

"

Runoff in 

acre-feet

1,780

2,250

1,710

41,920

8,490

1,870

9,050

14,280-

8,610

2,800

861

310

344

52,360

Peak discharge (base, 3.500 sec.-ft.).- No pe^ak above base.
364 FEATHER RIVER BASIN

Bear River near Auburn, Calif.

Location.- Water-stage recorder, lat. 39°01', long. 121°05' , near south line of sec. 33,

 T. 14 N., R. 8 E., 300 feet upstream from bridge on State Highway 49, 3.5 miles upstream from Wolf Creek, and 8 miles north of Auburn. Altitude of gage, about 1,300 

feet (from topographic map).

Drainage area.- 140 square miles.

Records available.- December 1940 to September 1948 in reports of Geological Survey. 1922,

 igyb-yB, 1929-33, incomplete (gage heights for high-water periods only), in reports 

of Division of Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 4,210 second-feet Apr. 10 (gage height, 9.66 

feet); minimum, 1.1 second-feet Oct. 19.

1940-48: Maximum discharge, 20,600 second-feet Jan. 21, 1943 (gage height, 16.45 

feet, present datum), from rating curve extended above 5,000 second-feet by logarithmic 

plotting and on basis of computed flow over Combie Dam, 3 miles above station; minimum, 0.5 second-foot July 14, 1946.

Remarks.- Records good. River receives inflow from Yuba River Basin above station. Flow

 regulated by Combie Reservoir (capacity, 9,000 acre-feet) and other reservoirs. Many 

diversions above station for power and irrigation.

Revisions (water years).- W 981: drainage area.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.2

4.2

4.2

4.2

4.2

4.2

5.1

5.4

4.2

5.1

5.1

2.2

1.6

2.0

2.6

6.4

2.0

1.2

1.3

7.1

23

23

23

23

23

23

23

23

26

25

25

Nov.

30

26

29

30

30

30

30

30

30

30

29

25

29

30

32

32

32

32

32

32

32

32

32

32

31

31

31

31

31

30

~

Dec.

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

31

32

32

32

32

32

32

32

32

34

32

28

8.5

8.5

8.0

Jan.

8.S

13

16

29

30

31

82

1,070

480

230

130

76

73

108

136

337

476

464

212

35

35

36

36

36

36

36

36

36

36

36

36

Feb.

60

182

182

340

464

456

436

420

408

388

370

343

311

212

155

132

78

7.6

7.6

8.0

8.0

8.0

8.5

12

18

18

19

21

20

-

-

Month

October. ...................................

November. ........................ .........

December. ..................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May.. ......................................

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1947-48 .................... .

Mar.

20

19

19

20

20

2O

21

21

22

22

21

21

21

16

13

16

16

13

17

13

12

11

25

554

617

337

522

685

323

332

420

Apr.

377

375

800

852

1,260

1,190

1,060

1,010

1,560

2,800

1,540

1,240

1,080

1,020

972

985

1,450

1,330

1,080

1,110

1,130

1,650

1,790

1,480

1,310

1,220

1,210

1,210

1,230

1,350

-

Seoondfoot-days

336.5

913

886.0

44,417.8

4 431.5

5 092 7

4^209

36,671

19,492.3

5,046

283.6

183.4

120.7

77,665.7

May

,330

,110

,050

,060

,040

1,020

992

1,020

985

998

966

800

615

452

313

296

394

452

476

670

600

488

452

444

196

6.4

8.9

209

317

392

340

Maximum

26

32

34

2,500

1,070

464

685

2, 800

1,330 

324

47

6 . 8

2.8OO

June

324

285

283

272

253

267

231

234

186

190

191

179

303

173

164

180

134

109

118

125

131

135

124

111

67

55

88

27

67

40

-

Minimum

1.2

25

8.0

1.2

8.5

7.6

11

375

6.4

27

2 6

3 . 8

1.6

1.2

July

39

47

38

34

6.1

20

6.8

5.1

3.8

3.6

3.4

3.4

3.6

3.8

4.0

2.6

2.7

3.2

3.4

3.8

4.2

3.8

4.0

4.0

4.0

4.0

4.0

4.2

4.5

4.5

5.1

Aug.

5.4

5.4

4.2

4.5

4.8

5.4

6.1

6.4

6.8

7.2

8.0

8.5

7.6

6.8

7.2

7.6

8.0

6.8

6.4

3.8

4.5

5.1

5.7

6.1

5.4

3.8

4.5

4.8

5.1

5.4

6.1

Mean

10.9

30.4

28.6

122

143

176

1,222

629

9 15

5 . 92

4.02

212

Sept.

6.4

6.8

6.8

6.1

3.6

3.8

4.5

4.5

4.8

4.8

5.1

5.1

5.7

5.4

5.7

5.4

4.8

3.4

3.2

3.2

3.0

3.0

2.6

1.8

1.6

1.6

1.7

1.8

2.2

2.3

Runoff in 

ac re feet

667

1,810 

1,760

88,100

8,790

10,100

8,350

72,74O

10^010

364

239

154,100 .
FEATHER RIVER BASIN

Location.- Water-stage recorder, lat. 39°00', long. 121°25', in sec. 3, T. 13 N., R. 5 E., 

on downstream side of bridge on U. S. Highway 99E, 1 mile southeast of Wheatland and 

6.5 miles downstream from Rock Creek. Altitude of gage, about 85 feet (from topographic map) .

Drainage area.- 295 square miles.

Records available.- October 1928 to September 1948.

Average discharge":- 19 years (1929-48), 418 second-feet.

Extremes . - Maxlmjm discharge daring year, 6,390 second-feet Apr. 10 (gage height, 10.60 

feet) ; minimum, 0.1 second-foot Sept. 12.

1928-48: Maximum discharge, 31,300 second-feet Jan. 21, 1943 (gage height, 16.95 

feet, site and datum then in use), of which 25,600 second-feet was in main channel and 

5,700 second-feet through levee break 0.5 mile upstream, determined by contracted-opening method and other data; no flow May 8, Sept. 18-25, 1939.

Remarks.- Records fair. Flow regulated by reservoirs and power plants above station. 

Kiver receives inflow from Yuba River Basin. Diversions above station for irrigation.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Apr.

100

140

192

256

445

Apr. 22 to Sept. 30

118

153

215

Discharge, in second-feet, water year October 1347 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.4 

4.2 

4.2 

4.? 

3.3

3.9 

6.4 

4.6 

5.0 

8.5

12 

11 

34 

102 

100

96 

110 

167 

195 

110

64 

79 

71 

66 

60

57 

54 

54 

148 

164 

95

Nov.

171 

296 

123 

104 

96

89 

87 

89 

84 

79

77 

72 

69 

72 

84

100 

84 

76 

71 

69

68 

64 

60 

58 

48

50 

48 

50 

51 

52

Dec.

54

56 

52 

56 

63

60 

60 

58 

58 

58

57 

57 

56 

56 

56

57 

68 

84 

68 

69

76 

69 

66 

64 

63

63 

62 

62 

52 

36 

36

Jan.

35

190 

362 

171 

233

142 

776 

1,610 

652 

409

270 

170 

157 

159 

186

245 

494 

486 

411 

102

91 

89 

87 

86 

84

79 

77 

72 

71 

68 

66

Feb.

66 

137 

186 

236 

458

499 

481 

445 

590 

635

486 

421 

377 

314 

223

208 

198 

89 

69 

64

57 

34 

35 

38 

40

37 

36 

43 

13

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May

June 

July 

Augu 

Sept

her. ...................................

mber. .......... .... .... ... ....

mber ...................................

lendar year 1947 

ary . . ,

h. ................................ ....

1. .....................................

St. ....................................

ember. ..... . .................... ....

Water year 1947-48 ......................

Peak discharge (base, 3,100 se= .-ft . ) - Ja

3,690 sec. -ft.; Apr. 10 (7:30 a.m.) 6,390 se

Mar.

10 

10 

10 

5.6 

5.2

5.0 

4.4 

7.2 

6.4 

6.8

4.2 

4.4 

18 

29 

142

246 

377 

243 

348 

246

157 

77 

41 

2,100 

1,780

756 

740 

762 

610 

468 

512

Apr.

1 

1

1 

1 

1 

1 

4

2 

1 

1 

1 

1

1 

1 

1 

1 

1

1

2 

1 

1 

]^

1 

1 

1

1 

1

Secondfoot-days

2,541 

1,852

67,375.4

8,130 

6,515 

9,731.2 

44,379 

22,701 

6,472 

363.1 

82.2 

245.7

104,910.5

n. 7 (10:30 

c.-ft.

508 

433 

908 

030 

570

580 

250 

080 

860 

530

160 

580 

300 

180 

110

160 

940 

620 

250 

150

130 

000 

960 

690 

440

320 

250 

300 

400 

690

May

1,570 

1,280 

1,140 

1,160 

1,120

1,080 

1,030 

1,040 

1,010 

1,000

1,000 

899 

735 

596 

462

362 

374 

532 

635 

904

811 

645 

568 

528 

477

166 

112 

118 

366 

462 

519

Maximum

195 

296 

84

4,640

1,610 

635 

2,100 

4,530 

1,570 

418 

45 

5.2 

31

4,530

June

418 

386 

362 

347 

344

332 

335 

311 

270 

265

268 

252 

250 

286 

190

184 

177 

166 

133 

148

146 

151 

137 

130 

116

85 

88 

84 

52 

59

Minimum

3.9 

48 

36

.2

35 

13 

4.2 

433 

112 

52 

2.8 

.3 

.2

.2

July

45 

31 

31 

19 

10

2.8 

3.9 

4.7 

4.2 

4.8

2.8 

6.5 

18 

20 

16

7.2 

8.6 

15 

13 

11

11 

11 

10 

11 

15

8.1 

4.6 

4.4 

5.6 

4.5 

3.4

Aug.

2.8 

5.2 

3.3 

2.5 

1.2

1.0 

1.4 

.8 

2.0 

4.0

3.7 

2.6 

2.3 

2.3 

.5

.4

.3 

1.0 

3.2 

3.3

2.2 

3.5 

2.0 

4.4 

4.4

3.5

2.7 

4.2 

4.0 

3.8 

3.7

Sept.

3.7 

3.8 

4.0 

1.6 

3.8

1.6 

1.9

2.0 

2.7 

2.7

3.6 

.2 

3.8 

2.8 

4.7

5.2 

7.4 

6.9 

6.9 

3.5

2.9 

6.9 

6.1 

18 

25

29

31 

20 

17 

17

MAJ.T, Runoff in Mean acre-feet

61.2 3,770 

84.7 5,040 

59.7 3,670

185 133,600

262 16,130 

225 12,920 

314 19,300 

1,479 88,020 

732 45,030 

216 12,840 

11.7 720 

2.65 163 

8.19 487

287 208,100

p.m.) 3,520 sec. -ft.; Mar. C4 (10:30 p.m.)
366 FEATHER RIVER BASIN

Bear River Canal near Coifax, Calif.

Location.- Water-stage recorder, lat. 39°08', long. 120°57', in SE-J: sec. 22, T. 15 N., 

W. 9 E., about 500 feet downstream from diversion dam on Bear River and 2 miles north 

of Colfax. Altitude of gage, about 1,980 feet (from topographic-map).

Records available.-.January 1912 to September 1948. 

Average discharge.- 34 years (1914-48), 250 second-feet.

Extremes.- Maximum daily discharge during year, 470 second-feet Jan. 9, May 16-18, 30, 31, 

June 1, 3; no flow Apr. 11 to May 10.

1912-48: Maximum daily discharge recorded, 498 second-feet May 11, 1945; no flow 

at times.

Remarks.- Canal diverts from left bank of Bear River In sec. 22, T. 15 N., R. 9 E. Water 

Is 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 American River.

Cooperation.- Records of daily discharge furnished by Pacific Gas & Electric Co.

Discharge, in second-feet, water year October 1947 to-September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

230

186

225

223

228

217

307

222

260

218

143

123

153

131

276

335

230

13*

109

282

316

298

322

341

149

117

283

329

316

271

177

Nov.

226

208

302

360

329

348

343

170

119

290

347

324

352

314

342

174

323

259

304

328

310

242

133

296

347

322

167

278

237

128

-

Dec.

297

313

332

341

354

345

195

285

449

449

454

379

360

274

348

377

439

375

378

281

245

380

367

337

117

219

300

234

361

377

374

Jan.

185

371

374

414

459

356

326

439

470

463

422

373

355

365

367

344

350

228

331

339

339

401

397

404

414

394

404

414

429

415

419

Feb.

424

424

407

414

434

460

459

386

424

439

420

412

429

419

460

439

447

434

439

425

423

374

433

429

432

424

422

434

427

_

-

Month

October. ...................................

November . ..................................

December. ...................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. .....................................

April. .....................................

May.. ......................................

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

439

433

443

434

437

427

354

414

374

351

365

379

369

421

439

434

434

331

404

305

250

235

280

399

437

308

198

269

392

449

458

Apr.

458

449

434

212

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

Secondfoot days

7,151

8 , 222

10,336

104,890

11,861

12 393

ll) 662

1 559

9, 080

13 399

11^848

11,627

10,791

119,929

May

0

0

0

0

0

0

0

0

0

0

80

266

394

468

369

470

470

470

449

444

458

465

465

463

462

465

460

460

462

470

470

Maximum

341

360

454

464

470

460

458

458

470

470

442

423

465

470

June

470

465

470

467

467

469

460

464

434

457

460

456

369

458

429

457

465

429

467

409

451

454

463

463

437

468

389

404

429

419

Minimum

109

119

117

0

185

374

198

0

0

369

325

295

28 S

0

July

442

.422

414

331

325

357

363

362

365

355

369

384

365

355

379

424

376

380

385

396

400

398

357

374

407

416

384

404

391

389

379

Aug.

295

419

404

384

399

389

396

374

383

343

368

385

374

377

388

386

371

374

423

422

348

409

360

365

350

341

348

318

369

379

386

Mean

231

274

333

287

383

427

376

52.0

293

447

382

375

360

328

Sept.

384

379

399

369

305

337

368

390

369

365

365

292

379

384

379

360

331

369

308

309

336

360

322

308

308

285

360

447

459

465

-

Runoff in 

acre-feet

14,180

16,310

20,500

£08,000

23,530

24,580

23,130

3,090

18,010

26,580

23,500

23,060

21,400

237,900
AMERICAN RIVER BASIN 367

North Fork American River at North Fork Dam, Calif.

Location.- Water-stage recorder above spillway of North Fork Dam, lat. 38°56 T , long. 

iai°01' , in SE£ sec. 30, T. 13 N., R. 9 E., 2 miles upstream from Middle Fork and 4 

miles northeast of Auburn. Datum of gage is 715.0 feet above mean sea level (levels 

by Corps of Engineers).

Drainage area.- 343 square miles.

Records available.- October 1941 to September 1948.

Extremes.- Maximum discharge during year, 6,800 second-feet Apr. 17 (gage height, 4.21 

feet); minimum, 24 second-feet Oct. 1, 2.

1941-48: Maximum discharge, 42,600 second-feet Jan. 21, 1943 (gage height, 9.53 

feet), from rating curve extended above 22,000 second-feet on basis of flow over spillway of dam computed by Craeger's method; no flow Aug. 27-30, Sept. 2-11, 1944.

Remarks.- Records excellent except those for July 26 to Sept. 30, which are good. Some 

storage and a few diversions above station.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

0.10 15 0.5 176 2.5 2,280 

.15 26.5 .7 310 3.0 3,080 

.20 40 .9 460 3.4 4,040 

.25 56 1.3 840 3.8 5,280 

.30 75 1.7 1,270 4.0 6,000 

.4 120 2.1 1,740

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

26 

26 

26 

26 

26

29 

32 

40 

53 

63

101 

106 

63 

46 

46

380 

850 

240 

136 

106

153 

176 

130 

101 

88

75 

71 

67 

115 

396 

261

Nov.

247 

352 

261 

201 

201

182 

153 

141 

130 

130

115 

106 

106 

101 

110

130 

141 

130 

115

106

101 

92 

92 

88 

88

88 

92 

97 

97 

97

Dec.

101 

101 

97 

101 

101

97 

92 

92 

92

88

88 

88 

83 

79 

79

79 

92 

101 

9? 

92

92 

88 

92 

88 

88

83 

83 

88 

88 

83 

79

Jan.

79 

557 

1,520 

1,650 

2,200

1,080 

1,920 

3,860 

1,620 

1,050

78O 

523" 622 

444 

396

366 

338 

317 

289 

268

254 

247 

233 

233 

227

214 

182 

182 

182 

176 

170

Feb.

164 

164 

153 

159 

176

207 

188 

164 

220 

338

268 

214 

194 

194 

201

296 

338 

338 

331 

310

296 

324 550- 

396 

338

317 

317 

338 

310

Month

Octc 

Hove 

Dece

Ca

Jami 

Febr 

Hare 

Apri 

 ay.

June 

July 

Augu 

Sept

Wa

niber. ..................................

lendar year 1947 ......................

ary

ember. .................................

ter year 1947-48 ......................

Peak discharge (base, 3,600 sec, -ft.).- Ji

sec. -ft,.; Apr. 17 (10:30 a.m.) 6,800 sec. -ft

Mar.

289

275 

268 

247 

240

233 

227 

240 

268 

247

240 

240 

303 

541 

541

550

660 

577 

660 

586

496 

487 

550 

1,710 

1,410

995 

920 

920 

890 

930 

900 .

Apr.

973 

1,240 

1,770 

1,680 

1,780

1,640 

1,420 

1,230 

1,720 

3,250

2,320 

1,770 

1,550 

1,550 

2,250

2,800 

5,960 

4,140 

3,100 

2,930

3,000 

3,250 

2,840 

2,380 

2,310

2,520 

2,490 

2,630 

2,420 

2,180

Seoondfoot-days

4,054 

4,090 

2,787

138,907

22,179 

7,803 

17,640 

71,093 

65,590 

37,615 

6,709 

1,922 

1,135

m. 8 (12:30 

.; May 7 (3

Hay

2-, 030 

1,880 

1,820 

1,970 

2,280

2,980 

3,270 

2,150 

1,800 

1,640

1,740 

1,910 

2,150 

2,500 

2,150

2,520 

2,740 

2,100 

1,840 

1,830

1,640 

1,440 

1,640 

2,130 

2,490

2,810 

2,680 

2,030 

1,770 

1,780 

1,880

Maximum

850 

352 ioi

4,540

3,860 

550 

1,710 

5,960 

3,270 

2,170 

496 

91 

43

a.m. 

a.m.

June

1,670 

2,030 

2,170 

2,040 

1,600

1,500 

1,870

1,830 

1,970 

1,780

1,480 

1,520 

1,310 

1,310 

1,230

1,150 

1,050 

995 

940 

951

910 

860 

790 

770 

760

710 

670 

622 

586 

541

Minimum

26

88 

79

26

79 

153 

227 

973 

1,440 

541 

91 

46 

35

26

July

496 

444 

388 

359

331

303 

289 

282 

268 

254

247 

233 

220 

214 

201

194 

182 

176 

170 

159

153

147 

141 

130 

125

118 

104 

100 

95 

95 

91

Aug.

91 

86 

82 

78 

74

74 

70 

70 

70 

66

66 

66 

63 

63 

63

59 

59 

59 

56 

53

53 

53 

56 

53 

54

52

49 

46 

46 

46 

46

Sept.

43 

43 

40 

40 

40

40 

40 

40 

37 

37

35 

35 

35 

35 

35

35 

35

37 

37 

37

37 

37 

37 

37 

40

40 

40 

37 

37 

37

 Runoff in "ean acre-feet

131 8,040 

136 8,110 

89.9 5,530

381 275,500

715 43,990 

269 15,480 

569 34,990 

2,370 141,000 

2,116 130,100 

1,254 74,610 

216 13,310 

62.0 3,810 

37.8 2,250

663 481.200

6,610 sec. -ft.; Apr. 10 (9 a.m.) 3,930 

4,180 sec. -ft.
368 AMERICAN RIVER BASIN

North Fork American River at Rattlesnake Bridge, Calif.

Location.- Water-stage recorder, lat. 38°49', long. 12l°06', in SW£ sec. 9, T. 11 N., R. 

a- B., 800 feet downstream from Rattlesnake Bridge, 3 miles downstream from Pilot Creek, 

and 6 miles south of Auburn. Datum of gage is 343.65 feet above mean sea level (riverprofile survey).

Drainage area.- 999 square miles.

Records available.- November 1930 to September 1937, December 1938 to September 1948.

Average discharge.- 15 years (1931-37^ 1939-48), 2,311 second-feet.

Extremes.- Maximum discharge during year, 16,600 second-feet Apr. 17 (gage height, 9.75 

feet); minimum, 21 second-feet Oct. 5.

1930-48: Maximum discharge, 95,000 second-feet Jan. 21 1943 (gage height, 26.5 

feet), from rating curve extended above 27,000 second-feet minimum, 6.5 second-feet 

Aug. 15, 1931.

Remarks.- Records good. Plow slightly regulated by small reservoirs above station; low 

flow greatly affected by diversions into North Pork ditch and inflow from Bear and 

Yuba River Basins through South Canal of Pacific Gas & Electric Co.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

-0.5 22 0.2 133 1.7 880 5.O 5,320 

-.3 43 .4 191 2.2 1,300 6.4 8,160 

- 2 55 .7 300 2.7 1,830 7.5 10,600 

-.1 70 1.0 440 3.3 2,580 8.8 13,80O 

-0.0 88 1.3 605 4.0 3,600

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

36 

35 

66 

31 

22

26 

122 

91 

164 

296

256 

405 

314 

254 

217

518 

3,800 

1,330 

650 

530

698 

930 

765 

651 

508

368 

352 

540 

621 

1,210 

1,020

Nov.

940 

1,120 

987 

902 

880

902 

763 

670 

475 

512

638 

563 

631 

599 

612

501 

557 

756 

650 

618

551 

546 

373 

375 

512

599 

409 

476 

498 

450

Dec.

436 

618 

569 

618 

605

554

457 

475 

557 

563

581 

624 

618 

565 

481

507 

551 

599 

599 

599

388 

523 

551 

517 

384

339 

443 

364 

446 

488 

492

Jan.

351 

861 

4,530 

3,780 

6,570

3,290 

3,800

11,500 

5,230 

3,320

2,450 

1,950 

1,600 

1,410 

1,280

1,180 

1,080 

963 

858 

902

902 

902 

858 

828 

805

763 

756 

742 

777 

756 

749

Feb.

728 

683 

657 

670 

763

855 

791 

738 

872 

1,150

1,000 

865 

791 

777 

798

979 

1,170 

1,190 

1,190 

1,140

1,040 

1,040 

1,760 

1,470 

1,280

1,140 

1,120 

1,220 

1,150

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1947 

ary

1. ....................... ..... . .....

St. ....................................

ember. .................................

ter year 1947-48 ......................

Mar.

1,020 

1,060 

1,070 

918 

955

948 

835 

880 

1,010 

910

910 

910 

1,040 

1,480 

1,650

1,620 

2,000 

1,710 

1,890 

1,700

1,330 

1,290 

1,560 

4,220 

3,570

2,630 

2,110 

2,170 

2,360 

2,550 

2,570

Apr.

2,670 

3,360 

4,~830 

4,260 

4,240

4,070 

3,350 

2,920 

3,420 

6,980

5,400 

4,120 

3,580 

3,460 

5,230

6,8OO 

13,800 

12,100 

8,750 

8,160

8,,370 

8,880 

7,720 

6,490 

6,250

7,150 

6,980 

7,640 

6,900 

5,910

Second 

foot-days

16,726 

19,065 

16,111

433,312

65,743 

28,997 

50,876 

183,790 

200,700 

123,980 

21,552 

5,383 

3,694

736,617

Peak discharge (base, 10.5OO sec. -ft.).- Jan. 8 (5 a.m

May

5,270 

4,890 

4,820 

5,270 

4,450

8,480 

9,930 

6,670 

5,360 

4,830

5,050 

5,700 

6,490 

8,330 

7,190

8,370 

9,320 

7,110 

5,910 

5,700

5,190 

4,500 

5,120 

6,820 

8,080

9,080 

9,030 

6,730 

5,780 

5,380 

5,850

Maximum

3,800 

1,120 

624

13,100

11,500 

1,760 

4,220 

13,800 

9,930 

6,980 

1,890 

260 

291

13,800

June

5,100 

6,510 

6,980 

6,670 

5,270

4,920 

6,290 

5,780 

6,450 

5,890

4,820 

4,910 

4,06O 

4,310 

3,950

3,580 

3,540 

3,350 

3,120 

3,100

3,040 

2,960 

2,700 

2,590 

2,680

2,550 

2,360 

2,310 

2,190 

2,000

Minimum

22 

373 

339

21

351

657 

835 

2,670 

4,450 

2,000 

268 

114 

81

22

July

1,890 

1,730 

1,380 

1,210 

1,070

963 

910 

902 

850 

791

756 

742 

690 

650 

612

581 

551 

518 

485 

465

440 

415 

395 

376 

363

350 

327 

304 

292 

276 

268

Aug.

260 

253 

242 

232 

222

222 

222 

205 

194 

191

185 

182 

176 

172 

179

160 

163 

157 

157 

157

155 

152 

133 

138 

138

133 

128 

126 

119 

116 

114

Mean

540 

636 

520

1,187

2,121

1,000

1,641 

6,126 

6,474 

4,133 

695 

174 

123

2,01 ~

Sept.

Ill 

109 

105 

103 

103

101 

101 

98 

92 

133

86 

81 

81 

81 

81

84 

83 

128 

157 

141

109 

94 

98 

128 

119

123 

141 

274 

291 

258

Runoff in 

acre- feet

33,180 

37,810 

31,960

859,400

130,400 

57,510 

100,900 

364.500 

398,100 

245,900 

42,750 

10,680 

7,330

1,461,000 ~

.) 15,300 sec. -ft.; Apr. 17 (4 p.m.) 16,600

see.-ft.; May 7 (5 a.ff.) 12,OOO sec.-ft.; May 17 (6 a.m.) 11,400 sec.-ft.; May 2fi (6 a.in ) 10 900 

sec.-ft.
AMERICAN RIVER BASIN 369

American River at Fair Oaks, Calif.

Location.- Water-stage recorder, lat. 38°38'15", long.- 121°15'55",. just upstream from 

highway bridge at Fair Oaks, Sacramento County, and 10 miles downstream from South 

Fork. Altitude of gage, about 72 feet (from topographic map).

Drainage area.- 1,921 square miles.

Records available.- November 1904 to September 1948 (at several sites near highway 

bridge).

Average discharge.- 43 years (1905-48), 3,684 second-feet,

Extremes.- Maximum discharge during year, 21,000 second-feet Apr. 17 (gage height, 10.68 

feet); minimum 105 second-feet Oct. 7.

1904-48: Maximum discharge, 140,000 second-feet Mar. 25, 1928 (gage height, 31.45 

feet, present datum), from rating curve extended above 75,000 second-feet; flood of 

Mar. 19, 1907, reached 'a stage of 31.4 feet, pres.ent datum (discharge probably about 

same as that of Mar. 25, 1928); minimum, 3.6 second-feet Aug. 16', 1924.

Remarks.- Records good. Flow regulated by reservoirs and power plants above station. 

Many diversions above station for Irrigation. Some inflow from Bear and Yuba River 

Basins.

Revisions (waterjyears).- W 861: 1928(M).

Discharge, in second-feet, water year October 1947 to.September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

?o

21

22

23

24

25

26

27

28

29

30

31

,0ct.

146

149

155

166

141

128

111

222

242

380

486

592

537

350

341

430

4,980'

2,820

1,320

881

990

1,070

1,140

926

822

579

555

664

743

1,270

1,660

Nov.

1,360

1,750

1,560

1,370

1,-200

1,300

1,080

1,000

713

699

881

822

804

766

788

773

678

990

847

788

728

728

531

525

598

728

611

618

706

664

-

Dec.

611

788

804

758

773

720

664

585

692

699

692

735

743

678

618

637

678

758

788

750

611

611

671

644 -

604

465

520

579

503

618

624

Jan.

549

520

5j_490

4,540

8,560

4,900

4,380

14,400

7,990

5,040

3,650

2,850

2,400

2,050

1,860

1,740

1,600

1,480

1,350

1,320

1,280

1,320

1,260

1,240

1,230

1,120

1,140

1,010

1,110

1,130

1,110

' Feb.

1,080

1,020

967

949

1,070

1,190

1,200

1,090

1,250

1,960

1,750

1,400

1,240

1,200

1,230

1,360

1,730

1,800

1,760

1,690

1,530

1,470

2,120

2,140

1,810

1,630

1,580

1,690

1,680

_

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 1947 ......................

January. ...................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July... ....................................

August ............................ .......

September . .................................

Water year 1947-48 ......................

Mar.

1,420

1,480'

1,480 "'1,350

1,330

1,360

1,230

1,210

1,500

1,360

1,290

1,230

1,360

1,920

2,630

2,340

3,080

2,670

3,010

2,920

2,190

2,040

2,120

7,130

7,060

4,700

3,700

3,460

3,560

3,800

3,800

Apr.

3,710

4,460

7,180

6,390

7,120

7,380

5,700

4,700

4,720

9,340

8,650

6,500

5,580

5,170

6,570

&.720

15,700

"17,600 12,400''

11,100

11,500

13,100

11,700

9,510

8,870

9,900

9,670

11,100

10,300

8,870

Secondfoot-days

24,996

26,606

20,621

668,576

89,619

42,586

79,730

263,210

314,850

221,440

40,244

9,533

7,207

1,140,642

May

7,940

7,280

7,120

7,420

8,750

11,700

14,900

10,800

8j500

7,650

7,740

8,600

9,880

12,500

11,300

13,000

14,600

11,700

9,830

9,320

8,500

7,410

7,940

10,400

12,500,

14,300

14,800

11,300

9,450

8,500

9,220

Maximum

4,980

1,750

804

20,100

14,400

2,140

7,130

17,600

14,900

11,200

3,840

392

431

17,600

June

8,100

10,100

11,200

11,100

9,100

8,300

10,900

10,100

11,100

10,500

8,850

8,780

7,630

7,780

7,300

6,880

6,520

6,240

5,910

5,790

5,600

5,520

5,100

5,090

5,150

4,940

4,700

4,5ffO

4,440

4,140

Minimum

111

525

465

98

520

949

1,210

3,710

7,120

4,140

384

230

184

111

July

3,840

3,430

2,950

2,520

2,220

1,900

1,750

1,730

1,630

1,500

1,440

1,390

1,320

1,160

1,100

1,050

1,020

912

841

774

728

652

614

584

556

503

480

452

384

417

397

Aug.

392

588

379

374

361

352

344

335

318

323

314

314

314

318

302

306

291

291

280

287

287

280

283

280

280

280

265

268

247

250

230

Mean

806

887

' 665

1,832

2,891

1,468

2,572

8,774

10,160

7,380

1,298

308

240

3,117

Sept.

226

226.

226

217

261

236

214

210

214

214

220

187

187

187

184

187

190

195

230

280

265

236

230

240

272

268

280

310

431

384

Runoff in 

acre feet

49,580

52,780

40,900

1,326,000

177,800

84,470

158,100

522,100

624,500

439,200

79,820

18,910'

14,290

2,262,000

Peak discharge (base. 20,000 see.-ft.).- Apr. 17 (8:15 p.m.) 21,000 sec.-ft.
370 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 east of Sacramento, Sacramento County, 6.5 miles upstream from mouth. Zero of 

gage is set to datum of Corps of Engineers.

Records available.- July to October 1921, October 1929 to October 1932, May 1934 to 

December 194k; (low-water periods only), May 1943 to September 1948.

Extremes.- Maximum discharge during year, 21,700 second-feet Apr. 17; maximum gage 

height, 28.93 Apr. 18; minimum discharge not recorded.

1921, 1929-32, 1934-48: Maximum discharge unknown; minimum discharge recorded, 

21 second-feet Aug. 14, 1931.

Remarks.- Records good. Flow regulated by reservoirs and power plants above station. 

Many diversions above station for irrigation. Some inflow from Bear and fuba River 

Basins.

Cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 z

3

b

6

7

11

16

21

26

28

Oct.

140

150

150

175

150

140

130

190

235

355

563

626

673

468

398

406

3,870

3,150

1,470

964

964

1,060

1,200

1,050

908

702

599

644

793

1,050

1,710

Nov.

1,380

1,620

1,570

1,420

1,250

1,320

1,190

1,080

846

772

888

898

846

846

856

846

762

1,010

964

888

856

846

664

581

617

793

772

654

772

762

-

Dec.

692

846

930

866

846

824

782

626

720

772

762

804

814

751

682

581

740

782

856

835

762

626

751

751

74O

536

528

682

511

692

720

Jan.

654

494

4,550

4,490

8,470

5,340

4,300

12,900

9,990

5,390

3,56O

2,860

2,430

2,090

1,880

1,750

1,640

1,540

1,370

1,320

1,310

1,320

1,280

1,250

1,230

1,140

1,140

1,070

1,120

1,160

1,160

Feb.

1,160

1,100

1,040

1,000

1,070

1,220

1,260

1,120

1,170

1,790

1,760

1,420

1,290

1,280

1,290

1,380

1,740

1,830

1,800

1,790

1,660

1,550

2,010

a2,250

al,870

al,740

al,600

al,650

al,600

-

Month

December. ..................................

Calendar year 1947 .......................

May. .......................................

July. ......................................

September. .................................

Water year 1947-48 ......................

Mar.

al,550

al,550

al,550

1,460

1,440

1,460

1,420

1,290

1,530

1,490

1,430

1,410

1,490

1,800

2,620

2,420

3,000

2,810

2,870

3,050

2,370

2,140

2,190

5,560

8,250

5,O6O

3,840

3,450

3,430

3,660

3,720

Apr.

3,610

4,260

6,940

6,350

6,84O

7,170

5,620

4,470

4,280

8,270

9,440

7,4OO

5,840

5,580

6,230

8,770

14,500

19,500

13,000

11,500

11,900

13,300

12,600

10,400

9,250

10,600

10,200

12,300

11,400

9,680

Secondfoot days

25,083

22,810

678,056

40,594

7,160

1,179,394

May

8,480

7,480

7,280

7,490

9,100

12,300

15,600

11,400

8,430

7,440

7,720

8,880

10,600

13,000

12,100

12,900

14,300

12,800

10,700

10,OOO

9,080

7,760

8,170

10,500

12,700

14,600

15,200

12,400

10,300

9,130

9,950

Maximum

3,870

1,620

930

20,OOO

2,250

8,250

3,800

454

19,500

June

8,680

10,600

11,700

11,700

9,880

8,600

11,400

10,800

11,400

11,300

9,640

9,230

8,220

8,170

7,690

7,120

7,OOO

6,420

6,100

5,880

5,750

5,570

5,120

5,060

5,080

4,960

4,790

4,520

4,320

4,020

-

Minimum

130

511

100

494

1,000

1,290

7,28O

462

176

130

July

3,800

3,380

2,880

2,460

2,160

1,880

1,680

1,630

1,580

1,460

1,410

1,350

1,30Q

1,180

1,100

1,050

1,020

960

91&

840

810

750

691

646

619

585

551

518

470

462

462

Aug.

438

446

431

408

394

394

386

394

386

364

364

364

357

329

336

336

315

315

315

301

301

294

301

294

301

301

282

288

275

268

242

Mean

809

952

736

1,858

1,498

2,623

1,309

239

3,222

Sept.

236

224

230

206

256

249

218

182

200

182

236

182

176

176

.176

176

200

200

236

294

262

249

218

236

256

249

275

288

454

438

Runoff in 

acre-feet

45,240.

1,345,000

86,160

14,200

2,339,000

a No gage-height record; discharge computed on basis of records for American River at Pair Oaks.
AMERICAN RIVER BASIN 371

Middle Pork American River near Auburn, Calif.

Location.- Water-stage recorder, lat. 38°55', long. 121°00', in NW^ sec. 5, T. 12 N., R. 

9 E., at Mountain Quarry Co.'s plant, 1.7 miles upstream from mouth and 3.5 miles 

northeast of Auburn. Datum of gage is 568.5 feet above mean sea level (river-profile 

survey) .

Drainage area.- 619 square miles.

Records available - December 1930 to September 1948. October 1911 to December 1930 at 

site half a mile downstream.

Average discharge.- 37 years, 1,359 second-feet.

Extremes.- Maximum discharge during year, 10,100 second-feet Apr. 17 (gage height, 13.38 

t'eet); minimum, 39 second-feet Oct. 3.

1911-48: 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 and diversions above station. 

Revisions (water years).- W 861: 1928.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

26 

27 

28 

29 

30 

31

Oct.

43 

43 

40 

44 

44

43 

45 

54 

89 

99

158 

272 

178 

122 

99

201

2,840 

792 

409 

287

287 

392 

321 

242 

205

180 

164 

156 

191 

618 

503

Nov.

437 

546 

468 

372 

366

369 

314 

270 

250 

234

217 

193 

182 

172 

176

205 

232 

214

198 

187

172 

156 

151 

142 

145

144 

145 

160 

170 

178

Dec.

193 

205 

193 

185 

191

172 

158 

154 

153

140

138 

147 

142 

140 

140

140

147 

170 

156 

149

149 

147 

147 

144 

140

137 

135 

135 

142 

144 

129

Jan.

121 

583 

2,660 

2,420 

3,590

1,830 

2,530 

6,920 

3,110 

1,950

1,380 

1,050 

880 

760 

675

615

567 

527 

491 

447

426 

412

394 

391 

388

366 

323 

302 

317 

305 

296

Feb.

290 

286 

260 

254 

305

323

311 

290 

360 

483

391 

329 

320 

311 

323

450 

539 

543 

555 

523

499 

515 

1,020 

738 

611

555 

559

583 

543

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

mber ...................................

lendar year 1947 

ary

embe r ..................................

ter year 1947-48 ......................

Peak discharge (base 6,500 sec. -ft.).- Jan

ft., May 7 (3 a.m.) 7,940 sec. -ft.; May 17 ( 

a No gage-height record; discharge Interpo

Mar.

495 

468 

464 

436 

422

419 

416 

416 

461 

433

419 

408 

483 

742 

702

729 

900 

770 

890 

756

647 

635 

806 

2,200 

1,650

1,240 

1,180 

1,270 

1,260 

1,350 

1,350

Apr.

1 

2 

2 

2 

2

2 

1 

1 

1

3

2 

2 

2 

2

3

4 

8 

7 

5 

5

5 

5 

4 

3 

3

4 

4

4 

4 

3

Secondfoot-days

9,161 

7,165 

4,762

262,964

37,026 

13,069 

24,817 

110,020 

130,630 

85,820 

16,197 

3,787 

2,145

444,599

,490

,110 

,830 

,460 

,440

,440 

,970 

,690 

,970 

,600

,880 

,360 

,120 

,110 

.260

,080 

,410 

,020 

,220 

,000

,240 

,520 

,600 

,830 

,830

,460 

500 

,840 

210 

530

May

3,120 

2,960 

2,950 

3,290 

4,040

5_,740 

6,480 

4,240 

3,440 

3,150

3,340 

3,700 

4,390 

5,310 

4,820

5,730 

6,100 

4,620 

3,710 

3,460

3,130 

2,830 

3,320 

4,600 

5,320

6,010 

5,870 

4,310 

3,650 

3,460 

3,540

Maximum

2,840 

546 

205

7,320

6,920 

1,020 

2,200

8,410 

6,480 

4,690 

1,480 

188 

83

8,410

June

3,280 

4,360 

4,690 

4,410 

3,470

3,360 

4,270 

3,960 

4,430 

3,930

3,180 

3,290 

2,850 

2,970 

2,700

2,560 

2,450 

2,360 

2,180 

2,220

2,150 

2,120 

1,930 

1,920 

1,980

1,920 

1,840 

1,750 

1,690 

1,600

Minimum

40 

142 

129

40

121

254 

408 

1,490 

2,830 

1,600 

196 

84 

65

40

July

1,480 

1,290 

1,060 

910 

793

694 

650 

642 

618 

589

561 

a535 

a510 

488 

470

458 

431

404 

374 

355

335 

319 

306 

290 

277

262 

246 

231 

217 

206 

196

Aug.

188 

184 

177 

168 

161

154 

147 

144 

139 

136

133 

128 

124 

120 

116

113 

109 

106 

105 

102

100 

98 

98 

100 

98

97 

94 

90 

88 

86 

84

Sept.

83 

81 

79 

78 

76

76 

75 

74 

73 

71

69 

67 

66 

66 

65

65

66 

67 

68 

69

70 

70 

70 

71 

71

73 

73 

72 

71 

70

 _., Runoff in Mean acre-feet

296 18,170 

239 14,210 

154 9,450

720 521,600

1,194 73,440 

451 25,920 

801 49,220 

3,667 218,200 

4,214 259,100 

2,861 170,200 

522 32,130 

122 7,510 

71.5 4,250

1,215 881,800

. 8 (4 a.m.) 8,900 sec. -ft.; Apr. 17 (3 p.m.) lO.OOOsec.- 

3 a.m.) 7,760 pec. -ft.; May 26 (4 a.m.) 7,220 sec. -ft. 

lated.
372 AMERICAN RIVER BASIN

Rubicon River near Georgetown, Calif.

Location.- Water-stage recorder, lat. 38°58', long. 120°29', in SEj- sec. 23, T. 13 N. , R. 

 IS K., 1 mile downstream from Little South Fork Rubicon River and 20 miles east of 

Georgetown. Altitude of gage, about 3,500 feet (from topographic map).

Drainage area.- 198 square miles (by Bureau of Reclamation).

Records available.- May 1943 to September 1948. November 1909 to June 1914 (published as 

KuDicon Kiver near Quintette).

Extremes.- Maximum discharge during year, 4,160 second-feet May 16 (gage height, 9.52 

feet); minimum 5.7 second-feet Oct. 6, 7.

1943-48: Maximum discharge, 9,620 second-feet Feb. 2, 1945 (gage height, 13.25 

^'eet), from rating curve extended above 2,100 second-feet by logarithmic plotting; 

minimum, 5.4 second-feet Oct. 28, 1944.

Remarks.- Records good except those for period of ice effect, which are fair. Flow reguiated by Loon Lake beginning in 1884 (usable capacity, 8,000 acre-feet, revised), on 

Gerle Creek, where most of stored water is diverted out of watershed in Georgetown 

ditch (see following page)

Rating table, water year 1947-48, except period of ice eff 

(gage height, in feet, and discharge, in second-feet)

1.1

1.2

1.3

1.4 

.1.5 

1.7

1.9 

2.2 

2.6 

3.0 

3.5 

4.0

84

128

206

308

4.5 

5.0 

6.0 

7.5 

8.5 

9.0

438

610

1,080

2,160

3,060

3,580

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

7.9 

7.9 

7.4 

8.7 

7.6

7.5 

7.8 

16 

13 

25

178 

83 

38 

28 

30

1,210 

1,190 

322 

185 

138

262 

219 

148 

115 

95

87 

80 

74 

271 

394 

262

Nov.

258 

310 

222 

188 

222

165 

140 

129 

123 

109

93 

86 

75 

73 

79

115 

107 

95 

86

73

63 

61 

58 

58 

59

67 

78 

86 

93 

115

Dec.

121 

106 

85 

83

77

68 

67 

65 

53 

61

61 

58 

56 

58 

58

55 

58 

57 

58 

58

57 

57 

54 

51 

51

52 

51 

54 

56 

37 

48

Jan.

51 

548 

876 

1,480 

1,080

718 

1,980 

2,570 

990 

598

427 

354 

297 

264 

242

224 

206 

193 

168 

166

160 

154 

158 

161 

155

121 

112 

129 

122 

116 

 112

Feb.

Ill 

97 

b92 

b95 

blOO

blOO 

blOO 

bl05 

blOS 

bllO

bllO 

bllO 

bllO 

bllO 

140

193

204 

210 

204 

197

190 

390 

366 

264 

222

232

240 

221 

195

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

mber. ...................................

lendar year 1947 

ary

1............. .........................

st..... ..:.............................

ember. .................................

ter year 1947 48 ......................

Peak discharge (base, 3,500 sec. -ft.).- Ja

sec. -ft.; May 6 (9 p.m.) 3,730 sec. -ft.; May 

sec. -ft.; May 25 (10 p.m.) 3,980 sec. -ft. 

* Winter discharge measurement made on thi 

b Stage-discharge relation affected by ice

Mar.

183 

186 

168 

157 

157

154 

151 

161 

163 

160

152 

161 

186 

192 

183

193 

186 

186 

188 

169

180 

242 

301 

313 

271

260 

313 

361 

366 

390 

404

Apr.

1

I 

3

2 

1 

2

2 

1 

1 

1 

1

1

1 

1

1

Secondfoot-day a

5,517.8 

3,486 

1,931

121,639.0

14,932 

4,926 

6,837 

36,062 

62,945 

51,870 

9,219 

1,114 

409

199,248.8

534 

748 

606 

459 

404

372 

351 

349 

574 

602

494 

459 

478 

742 

,410

,790 

,390 

,480 

,960 

,010

,010 

,780 

,310 

190 

610

670 

980 

820 

380 

100

May

940 

945 

1,080 1,510" 

2,160

2,860 

2,620 

1,590 

1,300 

1,300

1,580 

1,900 

2,630 

2/600 

2,680

3,200 

2,980 

2,140 

1,590 

1,410"

1,200 

1,280 

1,940 

2,740 

3,050

3,280 

2,850 

2,180 

1,810 

1,940 

1,660

Maximum

1,210 

310 

121

2,430

2,570 

390 

404 

3,390 

3,280 

2,700 

925. 

76 

18

3,390

June

2,110 

2,610 

2,700 

2,380 

1,860

2,360 

2,530 

2,540 

2,660 

2,250

2,020 

1,910 

1,740 

1,790 

1,590

1,530 

1,450 

1,420 

1,310 

1,370

1,350 

1,250 

1,170 

1,240 

1,240

1,200 

1,150 

1,070 

1,070 

1,000

Minimum

7.4 

58 

37

6.6

51

92 

151 

349 

940 

1,000 

80 

19 

11

7.4

July

925 

770 

638 

556 

456

402 

396 

396 

382 

359

361 

334 

297 

284 

279

260 

236 

213 

195 

178

165 

158 

147 

136 

126

116 

106 

96 

90 

82 

80

Aug.

76 

71 

66 

62 

56

52 

49 

45 

43 

41

38 

37 

35 

33 

32

30 

28 

27 

26 

25

24 

23 

23 

24 

24

23 

22 

21 

20 

19 

19

Sept.

18 

18 

17 

16 

16

15 

15 

14 

14 

14

13 

13 

12 

13 

12

12 

12 

12

13 

13

13 

13 

13 

13 

13

13 

13 

13 

12 

11

MB- n Runoff in Mean acre-feet

178 10,940 

116 6,910 

62.3 3,830

333 241,300

482 29,620 

170 9,770 

221 13,560 

1,202 71,530 

2,030 124,800 

1,729 102,900 

297 18,290 

35.9 2,210 

13.6 811

544 395,200

n. 7 (12 p.m.) 3,960 sec. -ft.; Apr. 17 (9:30 a.m 

13 (9 p.m.) 3,570 sec. -ft.; May 1'6 (9':30 p.m.) 4

B day.

) 3,560

,160
AMERICAN RIVER BASIN 373

Georgetown ditch above Pilot Creek, near Georgetown, Calif.

Location - Staff gage, lat. 38°56', long. 120°29', in SW£ sec. 25, T. 13 N., R. 13 E., 

U.5 mile northeast of Uncle Toms Cabin and 20 miles east of Georgetown.

Records available.- May 1947 to September 1948.

Remarks.- Records fair. Ditch diverts from Gerle Creek, Rubicon River Basin, into Pilot 

Creek. Flow is then diverted from Pilot Creek above 8 miles downstream, for domestic 

and irrigation purposes in vicinity of Georgetown (see Georgetown ditch near Georgetown, p. 375).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

a26

25

a24

24

a24

23

a23

a23

23

a23

23

23

a8

e.e -

_

_

-

_

-

_

-

-

-

-

_

-

-

-

-

-

Nov.

to. 2

-

Dec. Jan. Feb.

Month

October 1 14 ...............................

November ...................................

December. ..................................

Calendar year ......................

January ....................................

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June 16-30 ..................................

July.. .....................................

August .....................................

September. .................................

Water year ......................

Mar. Apr.

Secondfoot-days

298 . 6

.

_

_

_

_

_

125.8

610

744

701

-

May

Maximum

_

_

_

_

_

_

15

22

25

25

-

June

_

_

_

-

_

_

_

-

_

_

_

_

-

1.2

1.3

1.3

a4

7.0

6.5

8.4

9.7

11

all

11

8.4

15

15

15

Minimum

6.6

_

_

_

_

_

1.2

16

23

19

-

July

16

17

17

18

a!8

18

a!8

19

19

18

21

20

a20

20

20

19

20

20

a20

21

20

21

21

21

21

20

21

a21

21

22

22

Aug.

23

23

24

24

24

24

24

24

24

a24

23

24

24

25

25

24

24

24

24

24

24

24

24

24

a24

23

24

24

24

25

25

Mean

21.3

_

_

_

_

_

8.39

19.7

24.0

23.4

-

Sept.

a24

24

a24

24

24

a24

24

24

a24

24

a24

24

25

25

25

a25

25

25

25

25

a24

a24

a23

a22.

a22

a21

a20

a!9

19

a!9

Runoff in 

acre-feet

592

_

_

_

_

_

250

1,210

1,480

1,390

-

t Result of discharge measurement.

a No ga^e-height record; discharge interpolated.

889419 O - 50 - 25
J/4 AMERICAN RIVER BASIN

Pilot Creek near Georgetown, Calif.

Location.- Water-stage recorder, lat. 38°54', long. 120°29', in NE^ sec. 10, T. 12 N., R. 

12 K., 1.8 miles upstream from Kuttun Canyon and 12 miles east of Georgetown. Altitude 

of gage, about 4,000 feet (from topographic map)

Drainage area.- 14.5 square miles.

Records available.- January 1946 to September 1948. February 1910 to July 1914 (published 

as Pilot Creek near Quintette).

Extremes.- Maximum discharge during year, 218 second-feet Apr. 17 (gage height, 7.86 feet); 

minimum, 0.5 second-foot Oct. 6, 7.

1946-48: Maximum discharge, that of Apr. 17, 1948; minimum, 0.4 second-foot Aug. 16- 

20, 1946.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Some inflow and diversion above station (see records for Georgetown 

ditch above Pilot Creek, near Georgetown, preceding page, and Georgetown ditch near 

Georgetown, following page, which diverts about 1 mile above station).

Rating table, water year 1947-48, except period of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 11 to Jan. 1, 

July 18 to Sept. 30)

4.9

5.0

5.1 

5.Z 

5.3

0.5 

l.Z 

Z.I 

3.3 

4.7

5.4

5.5

5.6 

5.8 

6.0

6.5 6.3 4Z

6.6 64

7.0 101

7.4 148

7.8 208

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

.9 

.8 

.8 

.8 

.6

.6 

1.7 

5.9 

4.4

15

17 

7.8 

4.8 

3.3 

2.0

Z9 

22 

10 

.3

.0

. 9 

.4

.7 

.0 

.6

.6 

.4 

.6 

1 

.4 

.1

Nov.

2.8 

4.0 

3.4 

3.2 

4.9

4.5 

5.1 

4.6 

4.3

4.1

3.6 

3.1 

Z.6 

Z.3 

3.4

4.3 

4.0 

3.6 

3.Z 

2.3

1.9 

1.8 

1.8 

1.7 

1.7

1.6 

1.6

1.6 

1.6 

1.6

Dec.

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 

1.6

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.4

1.4 

1.4 

1.4 

1.4 

1.7 

Z.I

Jan.

1.8 

Z9 

3Z 

26 

24

16 

17 

33 

Zl 

14

10 

8.3 

6.9

6.0 

5.1

4.3 

3.7 

3.3 

Z.9 

2.6

2.3 

2.1

2.0

1.6 

1.6

1.4 

bl.l 

bl.3 

bl.2 

bl.2 

bl.2

Feb.

*1.2 

bl.l 

bl.l 

b2.1 

8.0

13 

13 

12 

13 

13

13 

9.7 

9.7 

8.3 

9.0

10 

8.7 

4.6 

3.6 

3.3

3.6 

7.8 

8.7 

6.9 

6.3

6.5 

6.3 

6.5 

5.8

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...........................

mber. ............................... .

lendar year 1947 

ary . . . .

\. .............................

1. .......................... .

St. ....................................

ember. .................................

ter year 1947 -48 ......................

Peak discharge (base, 150 sec. -ft. .- Apr.

Apr. 27 (5 a.m.) 158 sec. -ft.

Mar.

5.6 

5.4 

5.Z 

4.7 

5.1

4.9 

4.9 

5.2 

5.2 

5.Z

5.2 

5.6

8.7 

8.7 

7.6

7.2

7.4 

7.Z 

7.8 

6.7

6.5 

7.4 

9.7 

14 

17

14 

15 

15 

16 

ZO 

24

Apr.

30 

45 

64 

56 

50

44 

37 

36 

46 

74

66 

60 

58 

64 

89

111

200 

189 

158 

148

154 

20Z 

162 

14Z 

133

127 

152 

147 

130 

110

Secondfoot-days

185.4 

90.2 

48.9

3,918.9

Z83.9 

Z15.8 

Z82.1 

3,084 

2,218 

400.5 

118.4 

61.2 

50.1

7,038.5

May

93 

87 

85 

86 

a!05

a!30 

12Z 

97 

86 

79

75 

74 

75 

74 

76

73 

71 

66 

66 

66

58 

53 

5Z 

5Z 

51

50 

48 

43 

39 

45 

41

Maximum

29

5.1 

2.1

154

33 

13 

Z4 

ZOZ 

130 

36 

8.0 

Z.7 

Z.3

ZOZ

June

36 

34 

3Z 

30 

Z6

Z4 

ZZ 

Z2 

Zl 

19

16 

14 

13 

11 

8.3

7.2 

7.2 

5.8 

3.9 

5.2

6.0 

5.4 

4.6 

5.4 

4.7

4.0 

Z.7 

3.4

3.6 

3.1

Minimum

0.6 

1.6

1.4

.5

1.1 

1.1 

4.7 

30 

39 

2.7 

1.3 

1.1 

1.1

.6

July

3.4

4.9 

5.4 

5.4 

5.6

7.6 

8.0 

7.8 

3.Z 

5.1

6.0 

5.8 

5.1 

4.9 

4.9

4.7 

3.6 

Z.3 

Z.2 

Z.I

2.1 

2.1 

2.2 

Z.I 

2.1

1.7 

1.6 

1.6 

1.3 

1.5 

Z.I

Aug.

Z.5 

Z.2 

2.Z 

2.3 

2.3

z:7

2.6 

2.5 

Z.3 

2.Z

1.7 

1.9 

Z.O 

Z.O 

2.1

2.1 

2.0 

Z.O 

1.8 

1.8

1.8 

1.9 

2.1 

2.0 

1.6

1.1 

1.1

1.6 

1.6 

1.6 

1.6

Mean

5.98 

3.01 

1.58

10.7

9.16 

7.44 

9.10 

103 

71.5 

13.4 

3.8Z 

1.97 

1.67

19.2

Sept.

1.6 

1.6

1.6 

1.6 

1.6

1.7 

1.6 

1.6 

1.4

1.4

1.3 

1.2

l.Z 

1.5 

1.6

1.6 

1.7 

1.8 

Z.O 

1.8

1.8 

1.8 

1.9 

Z.I 

Z.3

Z.3 

Z.Z 

1.8 

1.4

1.1

Runoff in 

acre feet

368

179 

97

7,770

563 

4Z8 

560 

6,1ZO 

4,400 

794 

235 

121 

99

13,960

17 (9 p.m.) Z18 sec. -ft.; Apr. 22 (4 a.m.) Z14 sec. -ft.;

Winter discharge measurement made on this day. 

a No gage -height record; discharge computed on basis of records for Rubic 

b Stage -discharge relation affected by ice.

River near Georgetown.
AMERICAN RIVER BASIN 375

Georgetown ditch near Georgetown, Calif.

Location.- Water-stage recorder, lat. 38°54', long. ISO0 37', in NE£ sec. 10, T. 12 N., R. 

L'd K. , 12 miles east of Georgetown.

Records available - March 1947 to September 1948. February 1910 to January 1914 (publlshed as Pilot Creek ditch near Quintette).

Extremes.- Maximum daily discharge during year, 30 second-feet Sept. 25-27; minimum daily, 

4.1 second-feet Dec. 16.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Ditch diverts from Pilot Creek, about 1 mile above gaging station or 

Pilot Creek, for domestic and irrigation use in vicinity of Georgetown. (See also 

Georgetown ditch above Pilot Creek, near Georgetown p. 373).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

6

4

b

6

7

8

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

24

23

21

12

8.7

7.7

8.2

a8.5

a?

a9

a9.5

a9

a8

7.2

6.9

7.7

7.4

5.5

7.8

6.5

7.8

5.0

5.8

7.8

7.5

7.3

7.0

7.4

10

11

10

Nov.

9.6

11

10

10

11

8.7

7.2

7.0

6.9

6.8

6.6

6.4

6.0

5.9

6.7

7.2

6.8

7.0

6.9

6.3

6.O

5.6

6.2

6.7

5.3

5.1

5.1

5.0

5.1

5.3

-

Dec.

5.8

5.9

6.0

6.4

5.8

5.5

5.5

5.4

5.4

5.5

5.5

5.3

5.1

5.1

4.7

4.1

4,9

5.

5.

5.

5.

5.

5.

5.0

5.0

5.0

5.0

5.0

5.0

b5.0

*b5.0

Jan.

6.7

11

11

11

10

9.7

9.8

11

10

9.6

9.1

8.8

8.7

8.5

8.4

8.2

8.1

8.0

7.8

7.8

7.7

7.7

7.7

7.5

7.4

7.3

b9

b9

b9

b8

7.7

Feb.

*7.0

7.7

13

15

15

15

15

15

15

15

15

15

15

15

15

15

16

20

14

8.2

8.4

9.0

8.8

8.5

8.5

8.5

8.5

8.7

8.4

_

-

Month

December. ..................................

Calendar year ......................

March ......................................

May. .......................................

September. ................... .............

Water year 1947-48 ......................

Mar.

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.7

8.8

8:5

8.5

8.5

8.5

8.7

8.7

8.4

8.5

9.0

11

13

9.4

9.2

9.1

9.2

9.7

9.8

Apr.

11

11

12

12

12

11

11

11

11

13

13

12

12

12

13

14

16

16

15

15

15

16

16

15

14

14

14

14

14

13

-

Secondfoot-days

162.5

-

271.2

273.6

398

363

497.8

781

894

858

5,357.9

May

13

13

13

13

13

13

13

13

12

12

12

12

12

12

11

12

12

11

11

11

11

11

11

11

11

11

11

11

10

11

10

Maximum

6.4

- -

13

13

29

30

30

June

10

10

10

9.8

12

14

14

14

14

13

14

15

14

15

17

17

17

18

19

20

20

20

19

20

21

21

21

23

23

23

Minimum

4.1

_

21

4.1

July

24

24

24

24

23

23

23

23

23

24

24

24

24

24

24

24

25

26

26

27

27

27

27

27

27

27

27

27

27

27

28

Aug.

29

29

29

29

29

29

29

29

29

29

28

29

29

29

29

29

29

29

29

29

29

29

29

29

28

27

28

29

29

29

Mean

9 39

5.24

.

28.6

14.6

Sept.

29

29

28

29

29

29

29

29

29

29

V 28

28

28

29

29

29

29

29

29

29

29

30

30

Runoff in 

acre feet

322

_

1,700

10,620

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of ra 

near Georgetown.

b Stage-discharge relation affected by ice.

ige in stage and records for Pilot Creek
376 AMERICAN RIVER BASIN

South Fork American River near Kyburz, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°19 I , in S| sec. 29, T. 11 N., R.

15 K. .Reside Lincoln Highway, 0.7 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 1948. 

Average dlscharge.- 26 years (1922-48), 372 second-feet, combined flow of South Fork

American Kiver near Kyburz and El Dorado Canal. 

Extremes.- Maximum discharge during year, 2,950 second-feet May 26 (gage height, 6.14

reet); minimum, 1.2 second-feet Jan. 26.

1922-48: Maximum discharge, 9,700 second-feet Dec. 11, 1937 (gage height, 8.55

feet), from rating curve extended above 4,000 second-feet on basis of velocity-area

studies; minimum, 0.3 second-foot Nov. 9-11, 1929. 

Remarks.- Records good except those below 50 second-feet, which are fair. Flow partly

regulated by four reservoirs since beginning of record (total usable capacity now

35,500 acre-feet). Diversions above station. (See records for El Dorado Canal,

which diverts 0.5 mile above station). 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co.,

obtained in connection with a Federal Power Commission project.

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet)

(Shifting-control method used May 6-13,

Aug. 10 to Sept. 3o)

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

1.3 3.6 1.8 28 2.9 192 4.5 975 

1.4 5.7 2.0 47 3.2 272 5.0 1,420 

1.5 9.0 2.3 83 3.6 420 5.5 1,980 

1.6 14 2.6 130 4.0 628 6.0 2,71O

Discharge, in second-feet, water year October 1947 to September 1948

Oct.

7.4 

7.4 

7.0 

6.7 

7.0

6.7 

9.1 

7.4 

7.4 

37

20 

6.4 

5.7 

5.7 

5.1

370 

218 

15 

5.1 

5.7

22 

61 

99 

90 

86

83 

78 

78 

107 

157 

80

Nov;

25 

14 

6.0 

5.1 

6.7

5.7 

62 

96 

54 

8.3

7.7 

6.0 

8.3

7.4 

6.7

8.7 

6.4 

5.5 

5.3 

5.1

5.1 

5.3 

6.0 

6.7 

5.5

5.7 

5.7 

5.7

6.4 

13

Dec.

5.7 

5.1 

5.5

6.4 

6.5

7.5 

6.9 

7.6 

5.1 

5.3

5.1 

5.3 

5.3 

5.3 

5.3

5.3 

5.7 

5.3 

5.7 

5.7

5.7 

5.7 

5.5 

5.3 

5.1

5.3 

5.3 

5.3 

5.1 

5.5 

6.7

Jan.

5.7 

9.0 

55

121 

92

17 

293 

475 

170 

78

27 

14 

6.4 

7.0 

6.0

5.5 

5.1 

5.1 

5.5 

5.5

5.3 

5.1 

5.3 

5.1

5.1

5.1 

8.3 

5.3 

5.1 

5.3 

5.1

Feb.

5.3 

4.9

4.6 

5.1 

3.1

5.3 

4.4 

6.4 

8.0 

5.7

5.7

11 

16 

14 

12

11 

6.0 

5.1 

5.1 

5.7

6.0 

13 

7.7 

6.0 

6.4

6.4 

6.0 

6.0 

6.0

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

UAV

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber ...................................

lendar year 1947

1. .....................................

ember ..................................

ter year 1947-48 ......................

Peak discharge (base, 1.200 sec. -ft.).- Ap

sec. -ft.; May 16 (10 p.m.) 2,540 sec. -ft.; M 

sec. -ft.

Mar.

6.4 

6.0 

5.1 

5.5 

5.5

5.5 

5.5 

5.3 

5.1 

5.1

5.3 

5.7 

5.7 

5.5 

6.4

5.5 

5.3 

5.1 

5.3 

4.9

5.7 

6.0 

4.6 

5.3 

5.3

12 

5.7 

7.0 

5.3 

5.1 

7.6

Apr. .

62 

136 

94 

52 

30

19 

16 

13 

36 

63

48 

39 

46 

94 

282

467 

983 

833 

640 

710

770 

703 

516 

471 

616

690 

805 

819 

599 

476

Hay

412 

429 

496 

671 

973

1,340 

1,230 

812 

671 

647

777 

969 

,280 

,400 

,550

,870 

,840 

,410 

,060 

893

784 

832 

1,180 

1,550 

1,920

2,190 

1,930 

1,470 

1,190 

1,160 

999

fSays " 

1,700.8 370 

415.0 96 

176.1 7.6

47,582.9 1,480

Ij462.9 475 

209.9 16 

179.3 12 

11,128 983 

35,935 2,190 

40,126 1,910 

4,896.5 736 

176.0 11 

209.2 9.5

96,614.7 2,190

June

1,220 

1,560 

1,710 

,560 

,240

,710 

,720 

,800 

1,910 

1,810

1,700 

1,590 

1,500 

1,460 

1,370

1,310 

1,230 

1,190 

1,130 

1,110

1,080 

1,020 

1,080 

1,110 

1,110

1,060 

1,040 

1,010 

945 

841

Minimum

5.1 

5.1

5.1

4.4

5.1 

4.4 

4.6 

13 

412 

841 

5.3 

4.4 

6.0

4.4

July

73b 

616 

538 

425 

329

?63 

1Z\ 

183 

197 

185

174 

155 

123 

116 

115

107 

97 

82 

68 

56

27 

19 

14 

6.0 

5.3

5.5 

7.0 

8.0 

5.3 

6.4 

7.0

Aug.

8.7 

7.4 

6.0 

5.3 

5.5

5.7 

5.3 

4.9 

4.9 

8.0

8.0 

5.5 

5.3 

4.6

4.4

4.6 

5.5 

5.3 

5.1 

5.3

5.7 

4.9 

4.9 

4.4 

5.1

4.4 

4.4 

6.0 

4.4 

5.5 

11

Sept.

.4 

.7 

.7 

.4 

.4

.7 

.0

.7

.4

.4 

.4 

.4 

.0 

.0

.4

.4 

.7 

.4 

.0

6.7

6.4

6.4 

6.4 

6.4 

6.4

 _ Runoff in Mean acre-feet

54.9 3,370 

13.8 823 

5.68 349

130 94,380

47.2 2,900 

7.24 416 

5.78 356 

371 22,070 

1,159 71,280 

1,338 79,590 

158 9,710 

5.68 349 

6.97 415

264 191,600

r. 17 (8 p.m.) 1,260 sec. -ft.; May 6 (10 p.m.) 1,820 

ay 26 (9 p.m.) 2,950 sec. -ft.; June 9 (9 p.m.) 2,460
AMERICAN RIVER BASIN 377

South Fork American River near Camino, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°42', in SW£ sec. 25, T. 11 M., 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.

Keeords available.- October 1922 to September 1948.

Average discharge.- 26 years, 876 second-feet, combined flow of South Fork American River 

near Uamino and American River flume.

Extremes.- Maximum discharge during year, 6,580 second-feet May 27 (gage height, 12.02 

feet); minimum, 7.3 second-feet Oct. 5, Feb. 3.

1922-48: Maximum discharge, 34,400 second-feel; Dec. 11, 1937 (gage height, 25.5 

feet, from floodmarks in gage house), from rating curve extended above 14,000 secondfeet on basis of velocity-area studies; minimum, 1.2 second-feet Aug. 24, 1931.

Remarks.- Records good except those below 50 second-feet, which are fair. Flow partly 

regulated by four reservoirs s'ince beginning of record (total usable capacity now 

35,500 acre-feet). Two diversions above station; American River flume (see p. 387) 

and El Dorado ?qnal (see p. 382)

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Revisions (water years).- W 931: 1928, 1938, 1940(M).

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

0.7 

.9 

1.2 

1.5 

1.8 

Z.Z

2.6 

3.0 

3.5 

4.0 

4.5 

5.0

156

222

334

466

632

828

6.0

7.0

8.0

9.0

10.0

11.0

1.300

1,880

2,580

3,380

4,300

5,350

Discharge, in second-feet, water year October 1947 to September 1948

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.

15

17

17

18

15

14

17

32

51

76

186

95

28

33

32

459

1,560

309

149

110

125

158

97

67

42

32

28

27

77

256

197

Nov.

225

245

173

140

169

126

86

69

72

64

42

41

30

28

45

47

94

56

52

29

26

17

17

23

44

44

61

70

64

82

-

Dec.

73

79

42

56

28

29

22

25

21

19

22

23

20

16

27

20

36

30

27

27

26

31

16

19

23

15

20

17

15

14

12

Jan.

34

446

849

750

960

530

758

2,390

1,130

643

412

335

266

219

192

169

152

139

105

88

105

112

111

121

95

67

27

83

74

67

74

Feb.

65

48

20

47

36

47

119

219

322

339

241

215

231

268

253

302

246

217

206

173

135

227

325

209

186

193

206

216

142

-

-

Month

December. ..................................

Calendar year 1947 ......................

April. .....................................

May................................../.....

September . .................................

Water year 1947-48 ......................

Mar.

154

168

154

130

147

139

127

157

133

122

113

121

188

257

268

283

261

265

272

177

202

213

306

583

435

423

534

676

683

718

718

Apr.

782

993

1,290

1,010

1,130

1,040

778

679

746

1,530

1,200

969

920

933

1,430

1,940

3,340

3,470

2,890

2,770

2,970

3,360

2,760

2,360

2,430

2,700

2,820

3,080

2,590

2,200

-

Secondfoot days

4 339

850

155,706

5 453

690

284,424

May

1,880

1,830

1,880

2,190

2,770

3,860

4,240

2,830

2,310

2,130

2,340

2,680

3,280

3,800

3,810

4,580

4,780

3,570

2,830

2,520

2,220

2,070

2,650

3,700

4,390

4,980

4,800

3,470

2,990

2,750

2,550

Maximum

245

79

3,110

2 390 ' -~Q

49

4,980

June

2,960

3,750

3,880

3,780

2,890

3,610

3,940

3,830

4,170

3,890

3,330

3,370

2,910

3,060

2,760

2,640

2,500

2,390

2,190

2,220

2,050

2,020

1,950

2,050

2,030

1,950

1,800

1,830

1,760

1,590

-

Minimum

12

12

16

12

July

1,440

1,270

1,100

915

718

607

542

491

470

461

424

406

357

304

294

290

246

231

198

177

160

127

118

120

90

78

77

72

75

66

71

Aug.

79

70

56

51

47

43

50

32

43

33

46

47

51

36

38

35

31

33

31

29

35

38

40

38

32

33

27

30

22

23

17

Mean

27.4

421

_ 

23.0

777

Sept.

22

20

22

20

24

19

26

19

23

18

18

22

23

16

20

19

19

19

18

27

20

20

25

30

32

18

49

32

28

22

-

Runoff in 

acre-feet

1,690

304,900

1,370

564,200

Peak discharge (base, 4,100 sec.-ft.).- Apr. 17 (12 p.m.) 4,260 see.-ft.; May 7 (1 a.m.) 5,240 

sec.-ft.; May 17 (2 a.m.) 6,130 sec.-ft.; Hay 27 (1 a.m.) 6,580 sec.-ft.; June 8 (12 p.m.) 5,350
AMERICAN RIVER BASIH

Echo Lake conduit near Vade, Calif.

Location.- Water-stage recorder, lat. 38°50', long. 120°02', in NWij sec. 6, T. 11 H. , R. 

~"Ib E., 0.5 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 1948.

Extremes.- Maximum daily discharge during season, 26 second-feet Sept. 9, 14, 15; no 

now during most of year.

1923-48: Maximum daily discharge, 27 second-feet Sept. 13-15, 19, 1938, Sept. 9-12, 

1947; no flow during most of each year.

Remarks.- Records good except those for October and November, which are fair. No flow 

except during periods for which discharge is published. Conduit diverts from Echo 

Lake in Truckee River Basin into basin of South Fork American River for power and 

irrigation.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas 

talned in connection with a Federal Power Commission project.

Electric Co., obDiseharge, in second-feet, September to November 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Month

Sep 

Dot __ .......... ...........

tember. ................... ......

ober. ......... ...........

November. ................... ........

The period. ...... r ...... .

Sept.

0

0

0

0

0

0

0

8.5

26

25

25

25

25

26

26

25

25

25

24

25

25

25

25

25

24

23

22

20

20

19

Oct.

17

15

11

11

13

12

11

10

9.0

8.2

7.8

7.3

6.9

6.4

5.9

5.5 '5.0

4.6

4.0

3.6

3.2

2.9

2.7

2.4

2.1

1.8

1.6

1.4

2.4

1.2

1.3

Nov.

3.5

5.5

2.4

.4

.4

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

.5

.7

.7

.3

O

O

0

0

0

0

0

0

O

0

0

-

rooHa^ Maxilttu» Minimum

538.5 26 0 

197.2 17 1.2

15.9 5.5 0

-

Mean

18.0 

6.36

.53

-

Runoff in 

acre-feet

1,070 

391

32

1,490
AMERICAN RIVER BASIN

Medley Lakes Outlet near Vade, Calif.

Location.- Water-stage recorder, lat. 38°51 T , long. 120°08', in SWij sec. 29, T. 12 N. ,

m 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 1948. 

Average discharge.- 26 years, 17.0 second-feet. 

Extremes.- Maximum discharge during year, 115 second-feet Aug. 24 (gage height, 2.57

reet); minimum, 0.3 second-foot Oct. 1-9.

1922-48: Maximum discharge, 202 second-feet June 15, 16, 1929 (gage height,

3.42 feet); no flow at times in some years. 

Remarks.- Records good except those for January to April, which are poor. Practically

no available contents in Medley Lakes, above station, on Sept. 30, 1947, and 174

acre-feet on Sept. 30, 1948. 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co.,

oDta 1 ned in connection with a Federal Power Commission project.

Rating table, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

0.2 

.3

.5

2.8 

4.3 

6.3

40

S3

67

91

118

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

1.0

2.2

2.5

2.9

4.1

5.9

36

28

20

20

21

21

21

21

20

20

20

19

20

22

22

21

Nov.

22

21

20

20

20

19

19

19

19

18

17

17

17

16

16

16

15

14

13

12

12

12

12

12

12

10

7.5

5.5

4.1

4.9

Dec.

4.9

4.7

4.3

4.3

a4

a4

a4

a3.5

a3.5

a3.5

a3

a3

a3

a2.5

a2.5

»2.2

2.3

?.3

2.3

2.3

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.2

2.2

2.2

2.2

Jan.

2.2

2.2

2.2

2.2

2.3

2.4

2.4

2.3

2.3

2.3

> b2

Feb.

. b2

_

-

Month

October . ...................................

November . ..................................

December . ..................................

Calendar year 1947 ......................

January. ...................................

February ...................................

March. .....................................

April. ......................................

May. .......................................

June .......................................

July .......................................

August .....................................

September . .................................

Water year 1947-48 ......................

Mar.

> b4

Apr.

> b5

-

Secondfoot-days

373.3

442.0

90.7

5,448.2

64.8

58

124

150

583 . 1

1, 624

1,038 . 8

2,526.3

86.7

7,161.7

May

a5

a5

35

aS

a6

h6.8

9.7

3.5

2.5

2.4

2.9

4.7

8.6

11

11

17

14

12

32

30

32

32

34

38

40

45

43

32

30

29

33

Maximum

36

22

4.9

90

_

45

73

74

114

5.6

114

June

44

48

44

36

b36

b42

b38

b36

b38

b41

47

b44

b46

52

59

59

62

67

67

b69

b71

b73

b73

69

61

b60

61

59

61

61

~

Minimum

0.3

4.1

2.2

.3

_

_

_

2.4 36'

5.8

7.3

2.6

.3

July

68

74

73

72

66

63

47

5.8

16

16

16

20

27

33

38

40

39

35

30

27

25

25

24

22

21

19

17

19

15

22

24

Aug.

40

36

35

35

34

34

34

34

50

106

104

104

102

101

100

101

103

103

107

110

114

111

109

110

114

110

108

106

99

65

7.3

Mean

12.0

14.7

2.92

14.9

2.09

2

4

5

18.8

54.1

33.5

81.5

2.89

19.6

Sept.

3.2

2.9

3.0

3.2

3.0

3.0

3-0

2.9

2.9

2.9

2.8

2.7

2.7

2.6

2.6

2.6

2.6

2.6

2.7

2.7

2.7

2.7

2.7

2.8

2.9

2.8

2.7

2.6

2.6

5.6

"

Runoff in 

acre-feet

740

877

180

10,810

129

115

246

298

1,160

3,220

2,060

5,010

172

14,210

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of gate opening at dam and weather records, 

or interpolated.

b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading.
380 AMERICAN RIVER BASIN

Silver Lake Outlet near Kirkwood, Calif.

Location.- Water-stage recorder, lat. 38°40>, long. 120°08', in SW£ sec. 32, T. 10 N., R.

17 K., 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.

Keeords available.- September 1922 to September 1948. 

Average discharge.- 26 years, 32.3 second-feet. 

Extremes.- Maximum discharge during year, 289 second-feet June 10 (gage height, 3.86

reet); no flow on many days in February and Manch.

1922-48: Maximum discharge, 504 second-feet Dec. 11, 1937 (gage height, 5.10

feet), from rating curve extended above 190 second-feet; no flow on many days in

February and March 1948. 

Remarks.-

Ci , OOO CL^i^-J-^^v kjt^u. uv-f , J.J-1U. J.11 O.UUJ- \j J.VJ11 UVJ VUCl^ci icJ.tJO.DCU V^lUVJUj

spillway some escapes from Silver Lake through porous rock formation. 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., 

obtained in connection with a Federal Power Commission project.

Rating table, water year 1947-48, except period of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 4 to Dec. 14,

May 6 to July 4)

1.0 

2.5 

5.0

0.9 

1.0 

l.Z 

1.4

1.6 57

1.8 

2.0 

2.2 

Z.4 

2.6

93

111

131

151

Z.8 173

3.0 196

3.3 Z34

3.6 Z76

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

32

3Z

30

27

Z5

2Z

Zl

18

16

16

15

1Z

8.6

8.1

7.Z

10

16

15

15

14

13

13

13

13

12

12

11

11

10

10

10

Nov.

11

11

1Z

1Z

13

1Z

1Z

11

11

11

11

10

9.9

9.9

9.4

9.4

9.4

9.4

9.0

9.0

9.0

8.6

8.6

8.6

8.6

8.1

8.1

8.1

8.1

8.1

-

Dec.

8.1

8.1

7.7

7.Z

7.2

7.2

6.8

6.8

6.8

6.8

6.4

6.4

6.0

6.0

6

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5

5

5

5

5

5

4.5

4.5

Jem.

4.5

10

16

14

12

10

16

14

14

14

14

14

14

14

14

14

14

12

1Z

1Z

1Z

1Z

1Z

1Z

12

12

1Z

1Z

1Z

6.5

.2

Feb.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

0

0

.1

.1

0

0

-

Month

October ....................................

November ...................................

December . ..................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1947-48 ......................

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

.1

.1

.1

0

.1

Apr.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.3

.6

.3

.3'.5

.8

2.1

blO

bZO

b30

b35

b35

b37

39

3.9

Secondfoot-days

487.9

Z96.3

187.5

7,276.8

373.2

2.7

.4

Z51.5

2,786

4,544

314.3

41. Z

1,821.6

11,106.6

May

39

39

39

39

43

60

7Z

73

7Z

71

70

71

74

79

90

129

168

163

134

107

9Z

83

5Z

62

131

183

195

132

79

76

69

Maximum

3Z

13

8.1

248

16

.2

.1

39

195

263

79

1.6

98

Z63

June

70

93

158

185

111

136

Z09

182

195

263

248

Z15

174

160

17Z

163

159

147

135

130

106

115

151

145

136

133

13Z

122

110

89

-

Minimum

7.2

8.1

4.5

.1

.2

0

0

.1

J9

70

1.6

1.0

1.0

0

July

79

77

65

Z9

3.1

Z.7

Z.7

2.7

2.7

2.7

2.7

2.7

Z.7

Z.5

Z.5

Z.5

Z.5

2.5

Z.3

2.3

Z.3

Z.3

Z.3

Z.3

Z.2

2.1

2.0

1.9

1.8

1.7

1.6

Aug.

1.6

1.6

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

l.Z

l.Z

l.Z

l.Z

l.Z

1.2

1.2

1.2

1.2

l.Z

1.1

1.0

Mean

15.7

9.88

6.05

19.9

12.0

.09

.01

8.38

89.9

151

10.1

1.33

60.7

30.3

Sept.

1.0

h7.6

hll

11

11

hll

h35

h88

88

h94

98

98

h98

h98

h98

h90

h88

80

7Z

h66

h65

h64

h61

h61

59

57

h55

h54

h52

50

-

Runoff in 

acre-feet

968

588

372

14,430 .

740

5.4

.8

499

5,530

9,010

623

8Z

3,610

22,030

b Stage-discharge relation affected by ice

h Computed from staff-gage reading. 

Note.- No gage-height record Dec. 15 to Jan. Z6, July Z4-31, Sept. 4, 5, 9, 11, 12, 18, 19, 25, 

1, 30; discharge computed on basis of rafige in stage, record of gate operations, weather records 

 interpolated.
AMERICAN RIVER BASIN 381

Twin Lakes Outlet near Kirkwood, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°42', long. 120°03', in 

sw£ 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 Kirkwood. Altitude of gage, about 7,900 feet (from 

topographic map).

Drainage area.- 12.4 square miles.

Records available.- September 1922 to September 1948 (October 1934 to September 1948, 

except May and June 1945, include flow over Twin Lakes spillway).

Average discharge - 25 years (1922-44, 1945-48), 33.0 second-feet (including flow over 

Twin Lakes spillway).

Extremes.- Maximum discharge during year, 161 second-feet June 25 to July 1; minimum, 0.3 

second-foot May 8.

1922-48: Maximum combined daily discharge for outlet and spillway, 310 second-feet 

June 1, 1943 (possibly exceeded In May 1945); minimum, 0.1 second-foot Mar. 25-31, 1944.

Remarks..-_ Records excellent except those for December to May, which are good, and those 

for June 21 to July 31 which are fair. No diversion. Plow regulated by Twin Lakes; 

contents, 12,000 acre-feet Sept. 30, 1947, and 17,000 acre-feet Sept. 30, 1948. Small 

flows over Twin Lakes spillway occurred at times of high winds during period June 21 

to July 31, but are not included in table below.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co r , obtainea in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

6

11

16

21

25

26 

27 

28 

29 

30

Got.

73

55

80

23

35

22

5.0

5.0

5.3

5.0 

5.0 

5.0 

5.3 

5.3

Nov.

5.0

5.0

5.0

5.0

4.7

4.4

4.4

4.1

4.4

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

17

25

25

'25 

25 

25 

25 

25

"

Dec.

26

26

26

25

24

24

24

24

24

26

31

29

24

29

30

30

30

30

31

31

31

31

26

15 

15

15 

15 

15 

23 

35

41

Jan.

37

25

11

6.2

3.8

3.8

3.8

1 3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8-

3.8

3.8

3.8

5.6

15

26

26

18

3.8 

10

31 

40 

38 

31 

31

34

Feb.

41

41

41

41

41

43

55

55

55

55

55

55

55

55

55

55

46

26

19

5.9

5.9

5.9

5.9

11 

?6

18 

13 

13 

13

-

Month

December. ...................................

Calendar year 1947- .......................

April ......................................

May........................................

September. .................................

Water year 1947-48 ......................

Mar.

19

33

33

33

33

33

25

5.9

5.9

5.9

5.9

5.9

11

19

19

19

10

3.8

3.8

3.8

3.8

3.8

3.8

11 

31

17 

2.4 

2.4 

2.4 

2.4

2.4

Apr.

2.4

2.4

2.6

2.6

2.6

2.6

2.6

2.4

2.4

2.4

2.4

2.4

2.2

2.2

2.2

.2.4

2.9

2.6

2.6

2.6

2.6

2.4

2.4

2.4 

2.4

2.4

2.4 

2.4 

2.4 

2.4

-

Secondfoot-days

806

e9,094.4

1,395

1,168.9

9,842.1

May

2.4

2.4

2.4

2.8

1.9

.9

.6

.9

2.0

2.4

2.4

2.6

2.8

a, 6

2.8

2.8

2.8

2.8

2.8

2.6

2.4

2.6

2.8

3.0 

3.5

3.0 

2.4 

2.4 

2.6 

2.4

2.4

Maximum

41

e!67

100

161

June

2.8

3.0

3.0

3.0

3.0

3.2

26

54

54

55

78

90

89

90

91

91

86

72

73

73

73

81

132

149 

158

161 

161 

161 

161 

161

Minimum

15

2.2

3 8

3.2

.6 .

July

136

116

109

78

63

33

26

38

71

71

71

60

34

34

22

17

17

17 

17

17 

21 

27 

27 

41

46

Aug.

46

46

52

58

58

41

10

5.9

5.6

5.6 

5.3

5.3 

5.3 

5.3 

5.3 

44

104

Mean

30

26.0

e24.9

13 2

*? 4^

2 43

23 5

39.0

26.9

Sept.

100

3.8

3.8

24

44 

44

44

39 

28 

28

Runoff in 

acre- feet

1,600

e !8,030

2,320

19,540

e Include flow over spillway in June 1947.

Note.- A discharge of 7.3 second-feet was measured June 22 at Twin. Lakes spillway. Total spill 

for water year considered negligible.
382 AMERICAN RIVER BASIN

El Dorado Canal near Kyburz, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°19', in SEij sec. 29, T. 11 N., 

IT15 K., 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 1948.

Average discharge.- 26 years, 103 second-feet.

Extremes.- Maximum daily discharge during year, 162 second-feet July 17, Aug. 11; no flow

1922-48: Maximum daily discharge, 165 second-feet June 24, 27, 28, 30, 1938, 

July 2, 1945; no flow at times.

Remarks.- Records excellent except those for period of no gage-height record, which are 

good. Canal diverts from left bank of South Fork American River just below Silver 

Fork of South Fork; water used for power and irrigation.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

118

121

122

104

94

91

93

129

108

137

127

83

88

102

105

125

141

137

114

104

104

50

0

0

0

O

0

0

11

25

57

Nov.

116

133

122

114

114

99

71

58

67

78

78

74

63

68

76

80

77

77

71

58

63

62

76

84

78

81

84

85

88

100

-

Dec.

loo

84

76

76

68

65

63

66

59

70

74

74

69

65

70

69

74

70

72

72

70

70

68

61

52

52

51

51

51

50

94

Jan.

85

100

127

124

124

142

140

136

143

146

147

146

133

123

119

113

108

105

84

92

103

110

109

98

84

68

112

124

111

105

93

Feb.

88

90

102

108

94

94

105

116

108

112

133

128

116

102

108

120

131

119

107

92

80

103

105

86

95

116

106

97

87

_

-

Month

October. ..................................

November . ........................ .........

Decembe r ...................................

Calendar year 1947 ......................

January. ................................. .

February. ....................... ..........

March. .....................................

April ......................................

May. .......................................

June .......................................

July.... ...... ..............................

August .....................................

Septembe r ..................................

Water year 1947-48 ......................

Mar.

87

100

103

102

102

100

100

89

74

68

68

73

80

83

94

95

94

80

74

70

72

92

105

107

104

138

133

138

137

135

138

Apr.

141

132

126

136

138

138

138

138

138

128

128

129

133

136

133

125

114

118

129

130

128

119

118

117

118

125

127

123

122

127

Secondfoot-days

2,490

2,495

2,106

43,844

3,564

3,048

3,035

3,852

4,158

4,569

4,868

4,714

4,140

43,039

May

126

126

127

131

133

133

127

121

125

135

136

136

138

136

136

136

135

135

136

136

136

136

138

138

138

139

142

144

142

133

128

Maximum

141

133

100

159

147

133

138

141

144

158

162

162

150

162

June

144

145

147

149

148

150

148

147

147

147

148

148

149

149

153

155

155

155

154

156

156

156

157

158

158

158

158

158

158

158

Minimum

0

58

50

0

68

80

68

114

121

144

139

131

116

0

July

158

158

157

157

157

158

158

160

161

161

160

161

161

161

161

161

162

161

161

161

160

161

161

159

151

144

141

150

14Q

139

157

Aug.

156

159

154

151

154

154

152

151

148

157

162

161

159

157

154

151

151

151

153

151

155

155

154

151

154

152

148

145

141

131

142

Mean

80.3

83.2

67.9

120

115

105

97.9

128

134

152

157

152

138

118

Sept.

143

137

142

140

140

138

138

140

133

a!30

alSO

a!40

a!40

a!40

a!40

a!40

a!30

140

140

131

]37

146

146

145

145

145

142

127

119

116

Runoff in 

acre-feet

4,940

4,950

4,180

86,960

7,070

6,050

6,020

7,640

8,250

9,060

9,660

9,350

8,210

85,380

a No gage-height record; discharge computed on basis of record of gate operations and observer's 

readings.
AMERICAN RIVER BASIN 383

Alder Creek near Whitehall, Calif.

Location.- Water-stage recorder, lat. 38°45' , long. 120°22', in SW-J sec. 36, T. 11 N., 

m14 K., 0.8 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 1948 (include diversions by pipe line).

Average discharge.- 26 years, 33.7 second-feet.

Extremes.- Maximum discharge during year, 309 second-feet Apr. 17 (gage height, 2.91 

feet); no flow on many days October to January.

1922-48: Maximum discharge, about 1,760 second-feet Mar. 25, 1928 (gage height, 

7.1 feet, from floodmarks), from rating curve extended above 240 second-feet; no 

flow Oct. 5-13, 1946, Jan. 12-24, 1947, and on many days October 1947 to January 1948.

Extremes do not include flow in feeder pipe line.

Remarks.- Records good except those below 5 second-feet, which are f&ir. Records (except 

extremes) include compute'd flow in feeder pipe line that diverted just above station 

into El Dorado Canal Oct. 2-24, Nov. 15 to June 14.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Revisions (water years).- W 861: 1928(M).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

30.3

3.4

a. 6

a.S

a. 6

h.6

3.7

al.2

al.O

3.1

4.2

2.3

hl.O

h.8

a.S

f9.1

15

6.7

4.2

3.5

4.2

5.5

3.3

2.7

2.5

2.3

2.3

2.5

5.5

9.8

7.4

Nov.

7.0

7.8

7.8

7.8

9.5

7.8

6.6

6.3

5.9

5.2

4.8

4.8

4.5

4.2

f4.3

a4.5

h4.5

a4.0

a3.5

a3.0

a2.5

a2.0

al.6

hi. 3

al.O

a. 8

a. 8

a.B

a.B

a.S

-

Dec.

hO.8

a.B

a . 8

a.S

a.S

a.S

a.S

h.8

a.S

a. 8

a.S

a.B

a.B

a.S

h.8

a.S

a .

h.

a.

a.

a.

h.

a.

a .

a.

a.

a .

3.7

h.7

3.7

3.7

Jan.

aO.7

f21

46

41

34

26

35

70

48

36

27

21

18

16

14

12

fll

fio

f8.8

f7.7

f7.4

6.9

a6.0

35.8

a5.8

h5.8

a5.3

a4.3

a3.2

a2.2

hi. 3

Feb.

al.3

hi. 3

al.3

al.3

al.3

al.3

al.3

al.3

hi. 3

al.3

al.3

al.3

al.3

al.3

al.3

hi. 3

al.3

f7.0

14

11

12

17

20

f!5

16

16

16

15

f!3

_

-

Month

October. ...................................

Novembe r ......................... .........

December. ..................................

Calendar year 1947 ......................

January ....................................

February ...................................

March ......................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. ................... .............

Water year 1947-48 ......................

Mar.

f!3

13

f!2

f!2

f!2

fll

flO

flO

10

10

10

10

12

11

12

11

f!2

f!2

flO

fll

fll

14

16

16

f!7

fl8

26

29

29

30

35

Apr.

48

62

60

51

42

37

36

33

41

52

51

48

51

63

106

140

269

237

205

212

217

254

210

191

189

191

232

243

212

178

-

Secondfoot-days

102.7

126.0

23.3

6,844.3

557.2

194.1

465

3,961

5,476

2,137

226.8

46.7

16.2

13,332.0

May

147

139

138

154

188

S34

245

202

175

160

164

169

186

193

204

226

226

202

175

158

142

134

154

175

190

204

197

173

150

142

130

Maximum

15

9.3

.8

158

70

20

35

269

245

132

16

2.7

.8

269

June

126

126

126

123

115

119

117

124

132

117

106

98

88

77

66

59

52

48

40

39

38

33

28

26

24

21

19

17

a!7

16

-

Minimum

0.3

.8

.7

.3

.7

1.3

10

33

130

16

2.7

.9

.4

.3

July

16

15

14

13

12

12

11

10

9.8

8.6

8.6

7.6

7.6

7.1

6.6

6.1

5.7

5.3

5.3

4.9

4.9

4.9

4.5

4.1

3.7

3.4

3.4

3.2

2.9

2.9

2.7

Aug.

.7

.5

.3

.1

.9

.7

.6

.4

.3

.3

.4

.4

.4

.4

.4

.6

.6

.6

.6

.6

.4

.4

.4

.3

.3

.2

.1

.0

.0

.9

.9

Mean

3.31

4.20

.75

18.8

18.0

6.69

15.0

132

177

71.2

7.32

1.51

.54

36.4

Sept.

.8

.8

.7

.6

.6

h.5

a.S

a.S

3.5

3.4

a. 4

a. 4

h.4

a. 4

a. 4

a. 4

a.S

a.S

a.S

h.5

a.S

a.S

a. 6

3.6

a. 6

.6

.7

.7

.6

3.5

-

Runoff in 

acre feet

204

250

46

13,580

1,110

385

922

7,860

10,860

4,240

450

93

32

26,450

Peak dlschsrge (base, 120 sec.-ft.).- Apr.

3.-ft.; May

"(9

Apr. 27 {10 p.m.) 253

(9 p.m.) 219 sec.-ft.

a No gage-height record on creek; discha 

f Computed on basis of partly estimsted 

h Computed from staff-gage reading.

17 (8 p.m.) 309 sec.-ft.; Apr. 22 (5 a.m.) 268 sec.-ft. 

.) 281 sec.-ft.; May 16 (10 p.m.) 256 sec.-ft.; May 26

= interpolated on bssis of records for nearby streams. 

je-height record.
AMERICAN RIVER BASIN

Silver Creek at Union Valley, Calif.

Locatxon.- Water-stage recorder, lat. 38°52', long. 120°26 I , in SE£ sec. 20, T. 12 N., R. 

14 E., 1 mile downstream from confluence of North and Middle Forks, near lower end of 

Union Valley. Altitude of gage, about 4,530 feet (from topographic map).

Drainage area.- 82.7 square miles.

Records available.- October 1924 to September 1948.

Average discharge.- 23 years (1924-27, 1928-48), 199 second-feet.

Extremes.- Maximum discharge during year, 2,160 second-feet May 26 (gage height, 7.00 

feet); minimum, 3.7 second-feet Oct. 1, 2, 4-7.

1924-48: Maximum discharge, 8,560 seconl-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 Aug. 27, 28, 1931.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

So storage or diversion above station.

(water years).- W 861: 1928(M).

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.4 

1.6

410

534

117

.8 18 2.0 144

1.0 31 2.4 216

1.2 48 2.8 304

Discharge, in seoond-feet, water year October 1947 to September 1946

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.7

3.7

4.0

4.0

3.7

3.7

6.4

13

9.7

47

80

37

25

24

20

538

372

100

65

56

96

95

59

46

41

37

33

33

88

141

116

Nov.

126

114

94

87

84

65

58

60

57

47

46

41

35

37

46

62

56

53

47

40

37

33

30

34

38

61

67

66

66

75

-

Dec.

67

52

45

43

37

37

36

35

28

33

35

33

33

33

33

32

33

32

37

36

35

34

32

31

33

33

34

36

31

24

25

Jan.

50

250

300

300

300

200

600

900

350

200

150

130

110

100

100

90

85

85

80

70

70

75

80

80

70

60

50

60

54

56

55

Feb.

55

43

44

50

51

55

53

55

57

59

59

57

58

59

64

80

90

94

89

86

84

126

12 E

98

90

101

104

91

83

-

-

Month

October ....................................

November. ....................'.... .........

December ...................................

Calendar year 1947 :.....................

January .................................. .

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August. ....................................

September. .................................

Water year 1947-48 ......................

Mar.

79

79

72

72

72

71

71

75

75

71

71

75

78

92

81

76

74

76

72

70

71

87

101

147

125

104

114

122

117

113

118

Apr.

155

208

192

152

136

133

125

116

133

162

146

138

146

178

294

399

805

848

722

718

759

733

537

486

580

658

733

704

540

431

-

Secondfoot-days

2,200.9

1^098

46,946.3

5,160

2,160

2,721

12,067

26,749

22,746

2,885

432.7

240.7

80,222.3

May

374

385

422

593

820

1,170

1,070

627

515

528

665

832

,140

,130

,240

,500

,200

812

651

580

512

560

879

1,260

1,400

1,520

1,190

896

763

793

722

Maximum

126

67

878

900

126

147

848

1,520

1,340

304

22

9.7

1,520

June

1,070

1,220

1,150

986

740

1,340

1,120

1,170

1,160

921

904

812

805

805

729

704

661

644

583

569

563

518

508

518

483

455

449

425

396

338

Minimum

3.7

30 

24

3.5

50

43

70

116

374

338

23

9.7

7.4

3.7

July

304

245

208

180

146

137

137

131

124

113

112

101

92

86

83

75

66

60

56

52

48

45

42

37

37

34

31

28

27

25

23

Aug.

22

20

20

19

19

17

17

16

16

15

15

14

14

14

13

13

12

12

12

12

12

11

12

12

11

11

11

11

10

10

9.7

Mean

71.0

35.4

129

166

74.5

87.8

402

863

758

93.1

14.0

8.02

219

Sept.

9.7

8.8

8.4

8.4

8.4

8.4

8.1

8.1

8.1

7.7

.7

.7

.4

.4

.4

.4

.4

.7

.7

.7

.7

.7

.7

8.1

8.4

e.e

8.8

8.1

8.1

7.7

Runoff in. 

acre feet

4 370

3,490

2,183

93,120

10,230

4,280

5,400

23,930

53,060

45,120

5,720

858

477

159,100
AMERICAN RIVER BASIN 385

Silver Creek near Placerville, Calif.

Location.- Water-stage recorder, lat. 38°47>, long. 120°35', in sw£ sec. 13, T. 11 N., 

H. 12 K., 0.2 mile upstream from mouth and 12 miles northeast of Pla;erville. 

Altitude of gage, about 2,250 feet (from topograohic map).

Drainage area.- 176 square miles.

Records available.- December 1921 to September 1948.

Average discharge.- 26 years (1922-48), 387 second-feet.

Extremes.- Maximum discharge during year, 3,110 second-feet May 26 (gage height, 7.34 

feet); minimum, 21 second-feet Oct. 1.

1921-48: Maximum discharge, 14,600 second-feet Dec. 11, 1937 (gage height, 13.8 

feet), from rating curve extended above 3,800 second-feet on basis of velocity-area 

studies; minimum, 5.5 second-feet Sept. 18, 1934.

Remarks.- Records good. No storage or diversion above station. 

Revisions (water years).- W 861: 1928(M).

Rating table, water year 1947-48 (gage height, In feet,

and discharge In second-feet)

1.4 18 2.9 210

1.7 34 3.4 348

1.9 49 4.0 562

2.2 80 4.5 792

2.5 126 5.0 1,080

5.5 1,410

6.0 1,780

6.7 2,420

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IT

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

22

22

22

22

22

22

26

50

38

84

146

88

56

49

47

524

861

262

152

126

168

179

128

98

84

78

73

69

138

239

200

Nov.

210

215

173

146

166

126

111

104

103

91

86

80

70

73

84

111

98

94

88

70

67

66

61

65

72

84

103

108

108

119

Dec.

112

98

80

86

69

66

68

68

56

61

67

61

60

62

64

61

69

61

67

67

66

64

59

60

60

61

62

67

61

47

51

Jan.

73

456

575

598

608

417

745

1,430

653

407

296

268

215

196

1R?

168

158

158

135

130

131

139

148

154

148

119

91

108

104

10O

102

Feb.

104

78

75

90

94

98

91

100

123

126

103

98

104

104

121

154

171

179

173

162

158

226

259

203

182

186

196

186

158

-

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1947 ......................

January. ................................. .

February ...................................

March ......................................

April ......................................

May. .......................................

June .......................................

July.-. .....................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

158

162

142

133

146

137

135

152

148

139

139

148

177

184

173

196

175

182

191

166

168

193

231

276

226

239

290

301

298

304

312

Apr.

1

1

1

1

Secondfoot-days

4,095

3,152

2,061

88,903

9,212

4,102

6,021

28,877

46,264

36,547

6,736

1,706

1,144

147,917

374

495

579

488

470

421

367

342

394

562

492

445

438

466

653

851

,520

,630

,470

,380

,440

590

290

130

16O

3OO

420

460

230

020

-

May

884

862

878

1,060

1,390

1,890

2,000

1,350

1,100

1,O40

1,160

1,370

1,72O

1,880

1,88O

2,250

2,210

1,550

1,280

1,160

1,030

990

1,330

1,890

2,110

2,350

2,140

1,570

1,390

1,310

1,240

Maximum

861

215

112

1,420

1,430

259

312

1,630

2,350

1,860

591

76

41

2,350

June

1,440

1,860

,8OO

,700

,310

,780

,820

,740

,840

,610

,430

,42O

,250

,340

,180

,160

,090

,060

942

966

868

873

819

835

824

111

747

737

694

635

-

Minimum

22

61

47

21

73

75

133

342

862

635

80

42

36

22

July

591

514

441

383

327

296

287

287

279

259

259

239

220

208

203

188

171

162

148

140

131

124

119

111

108

103

96

91

88

83

80

Aug.

76

74

72

70

67

65

63

62

60

59

58

57

55

54

54

53

52

51

50

49

49

48

49

48

47

47

45

44

43

43

42

Sept.

41

40

40

39

39

39

40

40

39

38

38

37

36

36

36

36

36

36

37

37

37

37

37

38

40

40

40

39

38

38

-

Mean Runoff in "ean acre-feet

132 8,120

105 6,250

66.5 4,090

244 176,330

297 18,270

141 8,140

194 11,940

896 53,310

1,490 91,760

1,220 72,490

217 13,360

55.0 3,38O

38.1 2,270

4O4 293,400
386 AMERICAN RIVER BASIN

South Fork Sliver Creek near Ice House, Calif.

Location.- Water-stage recorder, lat. 38°49', long. 120°22', in SW£ sec. 1, T. 11 N., R. 

14 £., 0.5 mile upstream from Peavine Creek, 1.5 miles northeast of Ice House, and 

8 mij.es 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 1948. July to October 1922 at site 1 mile 

upstream.

Average discharge.- 24 years, 70.9 second-feet.

Extremes.- Maximum discharge during year, 689 second-feet May 26 (gage height, 3.53 feet); 

minimum, 0.4 second-foot Oct, 1-7.

1924-48: Maximum discharge, 2,200 second-feet Dec. 11, 1937 (gage height, 5.80 

feet), from rating curve extended above 540 second-feet on basis of velocity-area 

studies; minimum, 0.1 second-foot Aug. 21 to Sept. 6, 1931.

Remarks.- Records good except those for periods of ics effect or no gage-height record, 

which are fair. No storage or diversion above station.

Rating table, water year 1947-48, except period of Ice effect 

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Oct. 1-9)

1.0 

1-2 

1.4 

1.6

152

198

426

598

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2b

26

?7

?8

29

30

31

Oct.

0.4

.4

.4

.4

.4

.4

.5

2.5

2.5

16

15

7.7

4.5

4.5

5.8

134

206

66

44

39

48

44

30

23

20

19

17

16

23

39

40

Nov.

44

44

37

32

31

25

23

25

23

20

19

18

17

18

22

25

23

22

20

18

17

16

15

17

19

25

26

25

25

30

Dec.

25

20

15

15

13

13

13

13

11

12

13

12

12

12

12

12

12

12

14

14

13

13

12

12

12

12

12

13

12

10

12

Jan.

20

100

150

150

150

100

200

250

150

100

80

60

50

40

40

35

35

35

32

30

30

32

35

35

25

20

18

20

20

*19

20

Feb.

20

17

17

19

20

21

20

22

24

25

25

24

25

25

27

30

32

35

31

27

25

30

35

28

25

27

27

25

23

_

-

Month

December. ..................................

Calendar year 1947 ......................

Janu 

Febr 

lAarch

July

Augu 

September. .................................

Water year 1947-48 ......................

Mar.

23

23

21

19

19

19

19

20

21

15

15

16

16

16

16

15

12

11

11

10

9

9

10

12

10

10

11

11

11

12

12

Apr.

15

20

18

17

17

16

16

16

17

20

18

18

20

22

25

30

70

180

179

170

176

156

118

100

116

141

141

147

119

97

-

Secondfoot-days

408

17,394.3

2,081 

731 

454

2,215

8,384

10,970

2,099

270.6 

58.2

29,261.2

May

85

85

86

112

172

-284

331

188

135-

121

150

206

300

358

382

472

458

289

203

162

141

150

256

429

509

573

523

385

303

278

258

Maximum

25

448

250 

35 

23

180

573

555

206

19 

2.5

573

June

381

492

506

468

343

537

509

516

555

492

455

429

404

413

373

358

337

328

292

286

281

267

253

258

258

242

247

245

229

216

-

Minimum

10

.4

18 

17 

9

15

85

216

20

2.5

1.3

0.4

July

206

167

135

116

95

85

85

86

85

82

83

76

70

68

70

64

57

52

48

45

41

39

36

33

31

29

27

25

22

21

20

Aug.

19

18

16

16

14

13

12

12

11

11

10

9.8

9.2

8.7

8.2

7.7

7.7

7.2

6.3

6.3

5.8

5.4

5.4

5.4

4.5

4.5

4.0

3.6

3.2

3.2

2.5

Mean

13.2

47.7

67.1 

25.2 

14.6

73.8

270

366

67.7

8.73 

1.94

79.9

Sept.

2.5

2.5

2.5

2.2

2.2

1.9

1.6

1.9

1.9

1.9

1.9

1.3

1.3

1.3

1.3

1.3

1.6

1.6

1.6

1.6

1.6

1.9

2.2

2.2

2.2

2.5

2.5

2.5

2.5

2.2

-

Runoff in 

acre-feet

809

34,500

4,130 

1,450

900

4,390

16,630

21,760

4,160

537 

115

58,030

Peak discharge (base, 540 sec.-ft.).- Oct. 16 (9 p.m.) 445 sec.-ft.; Apr. 18 (2 p.m.) 416 sec.-ft. 

May 7 (2 a.m.) 394 sec.-ft.: May 16 (12 p.m.) 584 sec.-ft.; May 26 (10 p.m.) 689 sec.-ft.; June 9 

(8:30 p.m.) 672 sec.-ft.

* Winter discharge measurement made on this day.

Note.- No gage-height record Nov. 6 to Jan. 30; discharge computed on basis of range In stage and

Apr. 18. ' SrV S ' ^ y
AMERICAN RIVER BASBl 38 

American River flume near Camino, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 12C°42', in Sw£ sec. 25, T. 11 N., 

RT~n~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 1948. 

Average discharge.- 26 years, 110 second-feet.

Extremes.- Maximum daily discharge during year, 175 second-feet Feb. 26, 27; no flow 

 Mar. 30, 31.

1922-48: Maximum daily discharge, 189 second-feet Aug. 15, 16, 1942, June 28, 1944; 

no flow at times each year.

Remarks. - Records good. Flume diverts from South Fork American River in SW-J- sec. 24, T. 

ii u., R. HE., for power development in SW^ sec. 20, T. 11 N., R. HE., just above 

Rock Creek, at which point water is returned to South Fork.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

?

3

4

5

fi

7

fi

9

10

11

1?.

13

14

15

16

17

Ifi

19

20

21

22

23

24

25

26

27

?fi

29

30

31

Oct.

122

132

126

132

96

120

107

131

157

148

166

163

134

134

140

146

164

165

166

165

164

165

164

164

164

163

158

152

162

163

163

Nov.

163

163

162

162

162

162

162

162

163

162

162

162

160

151

161

160

161

152

150

144

140

138

136

138

162

152

159

161

159

162

-

Dec.

164

164

154

154

155

148

146

145

142

128

141

150

142

144

150

142

146

153

144

146

148

147

138

138

124

126

126

128

136

118

104

Jan.

142

163

168

168

167

167

167

166

166

164

165

165

164

163

166

170

171

170

168

168

170

169

170

171

171

170

154

162

170

167

166

Feb.

163

164

151

151

167

167

98

8.9

9.5

10

12

15

17

9.3

10

50

146

173

173

173

173

174

174

174

174

175

175

173

170

_

-

Month

December. ..................................

Calendar year 1947 ......................

May........................................

September. .................................

Water yeari947-48 ......................

Mar.

169

168

168

168

168

169

170

171

161

172

170

170

170

169

113

165

165

166

166

166

166

166

166

165

166

167

105

6.5

5.3

0

0

Apr.

34

142

164

164

129

164

166

166

166

166

166

166

166

167

166

166

165

165

166

167

166

165

166

166

166

166

166

165

165

165

-

Secondfoot-days

4,596

4,693

4,391

51,408.7

4,994

3,961

54,953.5

May

166

166

166

166

166

166

166

166

166

167

167

167

167

166

166.

166

166

166

166

166

166

166

167

166

166

166

166

166

166

166

166

Maximum

166

163

164

179

152

154

175

June

167

167

167

166

166

166

167

168

168

168

168

167

167

168

168

167

166

166

166

166

166

166

166

166

166

165

165

165

165

165

-

Minimum

96

136

104

0

34

115

0

July

164

165

164

164

165

164

164

164

164

162

161

162

163

166

166

166

166

166

165

166

166

165

164

158

154

155

155

152

151

152

149

Aug.

148

142

140

146

147

147

148

141

152

146

152

152

151

144

144

143

140

141

142

a!40

137

139

140

140

138

138

134

137

131

132

116

Mean

148

141

118

166

162

132

150

Sept.

137

130

124

118

136

115

151

135

139

128

132

138

134

122

135

129

126

122

131

134

122

122

132

131

127

125

154

148

147

137

-

Runoff in 

acre feet

9,120

102,000

6,800

9,910

7,860

109.000

No gage-height record; discharge interpolated.
388 AMERICAN RIVER BASIN

Webber Creek near Salmon Falls, Calif.

Location.- Water-stage recorder, lat. 38°45', long. 121 ' in sec. 32, T. 11 N., R.

, 1 mile upstream from mouth and 3.5 miles east of Salmon Falls

age, about 675 feet (from topographic map).

Drainage area.- 100 square miles (by Bureau of Reclamation

ecords available.- March 1943 to September 1947.

Extremes.- Maximum discharge during year, 2,690 second-feet Mar. 24 (gage height, 11.43 

feet); minimum daily, 0.4 second-foot July 15 to »UK. 31.

1943-48: Maximum discharge, 5.0CO second-feet Feb. 2, 1945 (gage height, 13.70 

feet), from rating curve extended above 2,300 second-feet; no flow Aug. 26, 1945, 

July 16 to Sept. PH, 1947.

Discharge, in second-feet, water year October 1947 to September 1348

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.5 

.6 

.6 

.5

.5

.6 

1.1 

3.0 

5.9

11 

6.2 

4.0 

3.4 

3.4

35

44 

14 

9.5 

8.0

14 

11 

9.2 

9.0 

7.8

7.2 

7.0 

7.5 

13 

19 

12

Nov.

32 

57 

22 

16 

14

12 

13 

14 

13 

12

12 

11 

11 

11 

13

19 

15 

13 

13 

12

12 

11 

11 

11 

11

10 

9.8 

9.8 

9.5 

9.0

Dec.

8.8 

8.0 

7.5 

7.8 

9.0

8.5 

8.2 

8.0 

8.0 

8.0

8.0 

7.8 

7.8 

7.8 

7.8

7.5 

11 

16 

12 

12

11 

9.8 

9.2 

8.8 

8.8

8.5 

8.2 

8.2 

8.2 

8.2 

8.0

Jan.

8.0 

11 

60 

36 

39

32 

30 

98 

56 

36

28 

22

19 

17 

16

14 

13 

12 

12 

12

11

10 

10 

10 

9.8

9.2 

8.8 

8.5 

8.2 

8.2 

8.0

Feb.

8.0 

8.0 

7.8 

8.5 

12

31 

34 

27 

58 

118

69 

48 

40 

35 

34

43 

43 

39 

35 

29

25 

22 

23

19 

16

15 

14 

21 

25

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mbe r ............................ . .

lendar year 1947 

ary

h. ....................... .

1. .....................................

ember. .......................... .....

ter year 1947-48 ... ..................

Peak discharge (base, 2,400 sec. -ft.).- Ma

a No gage-height record; discharge compute

Mar.

20 

18 

16 

14 

14

13 

12 

12 

21 

18

15 

14 

22

97 

158

132

182 

101 

261 

173

118 

90 

107 

1,580 

644

318 

213 

145 

134 

121 

96

Apr.

80 

104 

423 

365 

775

680 

358 

246 

243 

590

418- 

276 

211 

173 

144

126 

150 

130 

110 

96

91 

323 

202 

151 

124

107 

105 

98 

182 

194

Secondfoot-days

269.0 

439.1 

276.4

11,573.9

672.7 

907.3 

4,879 

7,275 

1,961 

424.8 

30.3 

12.4 

71.8

17,219.3

r. 24 (4 p.

d on basis

May

161 

129

110 

96 

83

63 

62 

63 

58 

54

42 

41 

39 

36 

34

32 

30 

38 

72 

130

110 

73 

57 

48 

41

39 

35 

38 

34 

54 

59

Maximum

44 

57 

16

1,160

98 

118 

1,580 

775 

161 

43 

2.4 

.4 

8.0

1,580

June

43 

36 

29 

32

30

27 

24 

21 

18 

16

15 

14

13 

12 

11

10 

9.5 

6.8 

7.8 

7.5

6.8 

6.2 

4.7 

4.5 

4.0

3.7 

3.6 

3.2 

2.9 

2.6

Minimum

0.5 

9.0 

7.5

0

8.0 

7.8 

12. 

80 

30 

2.6 

.4 

.4 

1.4

.4

July

2.2 

2.0 

1.8 

1. 

2.

2. 

2. 

2 .

1. 

a.

a. 

a.

a.'

Aug.

> aO.4

Mean

8.68 

14.6 

8.92

31.7

21.7 

31.3 

157 

242 

63.3 

14.2 

.99 

.40 

2.39

47.0

Sept.

> al.4

2.9 

5.6 

6.0

6.6 

8.0 

6.2 

3.4 

2.3

Runoff in 

acre-feet

534 

871 

548

22,960

1 330 

1 800 

9 680 

14 430 

3 890 

843 

61 

25 

142

34,150

n.) 2,690 sec. -ft. 

af discharge measurements made on July 27,
389

Yolo bypass near Woodlcmu, Calif.

Location.- Water-stage recorder on left bank, lat. 38°40'40", long. 121°38'35", just upstream from Sacramento and Woodland Railroad bridge, 6 miles upstream from Sacr-mentu 

bypass, 7 miles downstream from Fremont weir, and 7 miles east of Woodland, Yolo Cjanty 

Auxiliary water-stage recorder 6 miles downstream. Zero of both gages is set to datum 

of Corps of Engineers.

Extremes.- Maximum discharge during year, 18,500 second-feet Apr. 19 (gage height, 25. 2f 

feet) ; minimum, 4.1 second-feet Feb. 4.

1940-48: Maximum discharge, 272,000 second-feet Feb. 8, 1942 (gage height, 32.00 

feet); minimum daily, 3 second-feet Dec. 17, 1940.

Remarks.- Records good. Flow is that from Cache Creek and Knights Landing Ridge Cut

-lood water passing over Fremont weir; during "low consists largely of

return water from irrigation. Discharge for low flows computed on basis of

record for auxiliary gage

Cooperation.- Records llected and prepared in cooperation with Division of "Water Re

sources, Department of Publi tate of California.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

30

27

24

21

18

17

16

15

14

14

15

14

13

12

12

11

12

11

11

11

11

11

10

10

11

11

11

11111111

Nov.

10

9.9

8.9

8.5

9.1

9.1

8.4

8.0

8.7

7.6

7.8

7.7

6.8

7.0

7.2

7.8

7.5

7.8

8.2

6.8

6.8

7.1

6.8

7.0

7.0

7.2

7.1

7.2

7.3

7.3

-

Dec.

8.0

8.4

7.6

7.8

8.0

7.8

7.7

8.0

7.8

8.4

8.0

8.2

10

10

11

11

11

12

12

15

15

14

13

12

11

11

10

10

11

11

10

Jan.

10

10

15

17

18

17

19

52

63

67

74

80

84

87

92

96

93

77

57

42

32

24

19

16

14

11

8.6

7.6

7.2

6.7

6.3

Feb.

6.3

6.2

6.1

5.4

6.1

6.6

6.4

6.1

6.1

7.9

7.6

6.3

7.0

7.3

7.3

7.9

7.9

8.0

8.2

8.7

8.5

9.0

12

9.4

9.9

11

12

13

14

_

-

Month

October. ...................................

November ......................... .........

December. ..................................

Calendar year 1947 .... ...... . ........

January ....................................

February .............. ..... ... . . ......

March. .....................................

April ......................................

May. .......................................

June .......................................

July .......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

14

15

17

16

17

19

21

21

22

22

22

22

23

24

24

29

48

45

36

31

33

29

23

22

38

134

237

393

504

434

293

Apr.

215

151

107

78

65

64

140

222

310

447

858

1,160

1,030

915

782

1,390

2,470

3,360

13,600

14,500

8,480

5,450

4,220

3,990

4,420

4,190

2,990

1,390

712 880

-

Secondfoot-days

437

233.6

315.7

31,774.3

1,222.4

238.7

2,628

78,586

43,598

21,588

873

821

714

151,255.4

May

2,560

4,120

5,200

5,400

4,880

4,08~D

3,430

3,250

2,960

1,450

480

320

221

157

123

103

95

88

91

149

248

407

525

508

385

289

272

322

410

488

587

Maximum

30

10

15

1,260

96

14

504

14,500

5,400

1,600

37

30

26

14,500

June

877

1,140

1,310

1,350

1,420

1,450

1,520

1,560

1,580

1,600

1,580

1,470

1,290

1,080

717

458

300

214

152

106

78

60

46

39

34

33

31

30

31

32

-

Minimum

10

6.8

7.6

6.8

6.3

5.4

14

64

88

30

20

24

20

5.4

July

33

35

36

37

37

37

36

34

33

32

31

29

29

28

26

25

25

24

24

24

23

22

21

21

20

21

22

27

28

27

26

Aug.

25

25

26

28

28

29

28

29

29

30

29

28

26

28

30

30

28

27

26

25

24

24

24

25

25

25

24

24

24

24

24

Mean

14.1

7.79

10.2

87.1

39.4

8.23

84.8

2,620

1,406

720

28.2

26.5

23.8

413

Sept.

24

24

25

24

24

24

23

23

23

24

24

24

23

23

24

24

26

26

26

26

25

25

25

25

24

23

22

21

20

20

Runoff in 

acre feet

867

463

626

63,030

2,420

473

5,210

155,900

86,480

42,820

1,730

1,630

1,420

300,000

889419 O - 50 - 26 889419
390 COLUSA AND YOLO BASINS

Clear Lake at Lakeport, Calif.

Location.- Water-stage recorder, lat. 39°03', long. 122°55', in SE-j 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, datum of 1929.

Extremes.- Maximum daily gage height recorded during year, 4.62 feet May 11-15, 17 , 27- 

29; minimum, 0.00 foot Oct. 10, Dec. 12-16.

1913-48: Maximum gage height observed, 11.12 feet Jan. 28, 1914; minimum observed, 

-3.50 feet Sept. 24-27, 1920.

Remarks.- This natural Lake is regulated by a concrete overflow dam at outlet, completed 

in 1915. Capacity between gage heights 0.00 and 7.56 feet (limits stipulated by court 

decree of 1920), about 319,000 acre-feet. Water is released down natural channel of 

Cache Creek from which it is diverted for irrigation (see Cache Creek near Lower Lake)

Cooperation.- Mean daily gage-height record furnished by Clear Lake Water Co.

Gage height, in feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

0.13

.13

.13

.13

.13

.10

.09

.08

.06

.00

.23

.22

.22

.17

.16

.19

.20

.19

.18

.17

.17

.16

.15

.14

.14

.12

.11

.18

.18

.18

.18

Nov.

.16

.15

.14

.13

.12

.11

.12

.11

.10

.09

.08

.07

.06

.06

.08

.08

.08

.08

.08

.09

.08

.07

.06

.06

.06

.06

.06

.06

.06

.06

-

Dec.

0.06

.06

.06

.06

.05

.05

.04

.03

.02

.02

.01

.00

.00

.00

.00

.00

.02

.04

.09

.09

.09

.09

.09

.09

.09

.08

.08

.07

.07

.07

.09

Jim.

0.10

.10

.13

.16

.19

.23

.32

.41

.43

.45

.46

.47

.48

.49

.49

.52

.54

.54

.54

.54

.54

.54

.55

.56

.55

.55

.55

.54

.54

.52

.50

Feb.

0.5O

.50

.50

.50

.55

.55

.55

.57

.62

.63

.63

.63

.64

.65

.66

.67

.68

.68

.68

.68

.68

.68

.68

.68

.68

.68

.69

.69

.69

-

Mar.

0.69

.69

.69

.69

.70

.70

.70

.70

.71

.71

.71

.71

.72

.73

.74

.77

.80

.80

.84

.87

.87

.88

.18

.37

.53

.54

.60

.67

.70

.72

.75

Apr.

1.80

1.84

1.90

2.00

2.10

2.20

2.28

2.42

2.54

2.72

2.86

2.94

3.03

3.22

3.39

3.52

3.64

3.71

3.76

3.81

3.91

4.00

4.05

4.08

4.10

4.12

4.13

4.15

4.20

4.32

Bay

4.40

4.45

4.50

4.5C

4.57

4.60

4.60

_

4.60

4.60

4.62

4.62

4.62

4.62

4.62

_

4.62

4.58

-

4.56

4.55

4.56

4.55

4.55

4.55

_

_

4.50

4.50

4.50

June

4.56

.56

.50

.50

.51

.52

.52

.52

.52

.50

.50

.48

.46

.44

.41

.38

.36

.33

.30

.27

.24

.21

.19

.16

.13

!io

.07

.04

.02

.99

July

3.96

3.93

3.88

3.84

3.77

3.74

3.70

3.68

3.66

3.63

3.60

3.57

3.55

3.50

3.40

3.37

3.33

3.29

3.26

3.24

3.20

3.17

3.13

3.09

3.03

3.00

2.94

2.92

2.89

2.85

2.82

Aug.

2.78

2.74

2.70

2.66

2.61

2.56

2.52

2.48

2.44

2.40

2.38

2.36

2.32

2.27

2.22

2.17

2.13

2.09

2.05

2.02

1.98

1.95

1.91

1.88

1.85

1.82

1.79

1.75

1.72

1.69

1.66

Sept.

1.62

.58

.54

.51

.48

.45

.43

.42

.38

.35

.31

.28

.25

.22

.20

.18

.16

.13

.11

.09

.07

.02

.98

.96

.94

.92

.91

.89

.88

.86
COLUSA AND YOLO BASINS 391

Cache Creek near Lower Lake, Calif.

Location.- Water-stage recorder, lat. 38°55', long. 122°34', in sec. 6, T. 12 N., R. 6 W., 

500 feet downstream from Clear Lake Dam, 1.5 miles downstream from Copsey Creek, and 

2.5 miles northeast of Lower Lake. Altitude of gage, about 1,280 feet (from topographic map).

Drainage area.- 528 square miles including water surface of Clerk Lake (65 square miles). 

Records available.- May 1944 to September 1948.

Extremes.- Maximum daily discharge during year, 430 second-feet July 30 (gage height, 3.92 

reet); minimum daily, 1.5 second-feet Mar. 12.

1944-48: Maximum discharge, 4,650 second-feet Jan. 4, 1946 (gage height, 8.34 feet), 

from rating curve extended above 2,000 second-feet on basis of velocity-area studies 

and logarithmic plotting; minimum not determined, but less than 0.5 second-foot.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are fair. Plow completely regulated by Clear Lake Dam.

Rating table, water-year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

0.2 1.4 0.8 6.5 1.6 27 2.9 185

.3 1.8 .9 8.2 1.7 33 3.2 244

.4 2.3 1.0 10 1.8 40 3.5 314

.5 2.9 1.2 14 2.0 57 3.8 394

.6 3.8 1.4 19 2.3 90 4.0 456

.7 5.0 1.5 23 2.6 133

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Discharge, in second- feet, water year October 1947 to September 1948

Oct.

4.2

4.0

4.0

4.0

4.0

4.0

4.0

4-.0

4.0

4.0

4.0

3.8

3.6

f2.8

3.7

f3.0

f2.9

f3.6

3. 7

f3.6

3.8

3.8

3.7

3.7

3.7

f3.7

3.9

3.8

3.9

3.9

3.9

Nov.

3.9

4.0

3.9

3.9

3.9

a3.9

a3. 9

a3.9

aS. 9

a3.9

a2.8

a2.8

a2.8

a2.8

a3.9

a3.9

a2.9

a2.9

a2.9

3.9

3.9

3.8

3.8

3.5

3.8

3.9

3.9

3.9

3.8

3.8

-

Dec.

3.8

3.1

3.4

3.7

3.7

3.6

3.6

3.6

3.6

3.2

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.4

3.6

3.6

3.4

2.4

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

Jan.

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.4

3.4

3.4

3.4

3.0

3.4

3.4

3.4

2.6

3.4

3.4

2.9

3.2

2.6

3.2

3.1

3.2

3.2

3.2

3.1

3.1

2.5

2.0

Feb.

3.4

3.2

3.2

3.4

3.4

3.4

3.4

3.4

3.4

3.4

2.9

2.6

3.2

2.9

3.2

2.6

2.5

3.2

2.5

2.4

2.5

2.7

2.6

2.4

2.3

2.4

2.4

2.3

2.3

-

-

Month

October. ...................................

November. .. i ...............................

December. ...................................

Calendar year 1947 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June. ......................................

July. ......................................

August .....................................

September . .................................

Water year 1947-48 ......................

Mar.

2.4

2.2

2.2

2.3

2.2

2.5

2.7

2.4

2.2

3.2

3.2

1.5

3.1

3.1

2.7

2.3

2.7

2.9

2.5

3.1

2.6

2.9

3.4

3.0

3.4

2.5

3.1

3.2

2.4

2.8

2.8

Apr.

3.4

3.4

3.4

2.9

3.4

3.6

3.6

4.0

3.3

3.8

3.7

3.0

3.4

3.7

3.8

3.8

2.9

2.7

3.0

3.4

3.6

3.6

3.7

2.9

2.9

3.8

3.8

3.8

3.9

3.9

-

May

3.7

3.8

3.2

3.3

3.9

3.9

3.9

3.9

3.8

3.8

42

118

181

244

248

222

242

262

262

182

113

114

143

214

248

237

229

220

193

54

7.2

footways MaXlmUm

116.7 4.2

108.8 4.0

.0 o . o

15,603.0 262

100 .3 3.6

83.5 3.4

83.5 3.4

104.1 4.0

3,812.4 262

6,660.8 366

11,396 430

9,823 391

6,688 340

39,086.4 430

June

6.8

34

74

102

60

62

52

77

163

207

207

190

207

222

226

248

288

312

312

319

348

366

348

322

309

309

309

309

322

350

-

Minimum

? a

2.4

2.4

2.0

2 3

ils

2.7

3.2

6 . 8

330

266

74

1.5

July

363

361

348

345

348

345

340

337

340

345

335

330

343

356

366

374

386

397

400

391

377

369

369

369

369

374

380

388

412

430

409

Aug.

391

372

343

340

340

337

337

337

332

324

300

283

283

290

324

343

361

363

343

319

280

266

278

283

278

280

280

283

297

319

317

Mean

3.76

3.63

3.53

42.7

3 24

? ' aa

2.69

3.47

123

222

368

317

223

107

Sept.

317

335

340

330

319

324

330

322

322

322

317

312

295

285

268

240

209

185

174

152

119

103

119

116

104

98

91

86

80

74

Runoff in 

acre feet

231

216

217

30,940

199

166

166

206

7,560

13,210

22,600

19,480

13,270

77,520

a No gage-height record; discharge computed on basis of record of regulation at dam upstrea 

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
392 COLUSA AND YOLO BASINS

Cache Creek; near Capay, Calif.

Location.- Water-stage recorder, lat. 38°43'40", long. 122°06'15", in SE^ sec. 8, T. 10 

K ., K. 2 W., 2 miles upstream from Clear Lake Water Co.'s diversion dam and 3 miles 

northwest of Capay. Altitude of gage, about 240 feet (from topographic map).

Drainage area.- 1,052 square miles.

Records available.- May 1942 to September 1948.

Extremes.- Maximum discharge during year, 3,500 second-feet Apr. 15 (gage height, 7.20 

feet); minimum, 2.5 second-feet 03t. 1, 3-6.

1942-48: Maximum discharge, 23,000 second-feet Jan. 21, 1943 (gage height, 17.54 

feet), from rating curve extended above 6,300 second-feet on basis of peak flow at Yolo, 

minimum, 2.2 second-feet Sept. 11, 12, 16, 1947.

Remarks.- Records good. Plow regulated by Clear Lake beginning in 1915 (see p. 390). 

Many diversions above station for irrigation.

Hating fea'sles, water-year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Mar

1.65

1.7

1.75

1.85 13 2.4 101

1.9 18 2.6 148

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

37

18

19

20

2]

22

23

24

25

26

27

28

29

30

31

Oct.

2.5

2.9

2.5

2.5

2.5

2.5

3.3

3.8'

4.4

7.0

4.4

2.9

2.9

2.9

2.9

4.4

3.8

3.3

3.3

3.3

3.3

3.8

3.8

3.8

3.8

3.8

3.8

5.0

5.7

5.0

5.0

Nov.

9.3

20

20

22

23

20

18

17

15

15

15

14

15

15

16

15

16

16

15

15

16

15

15

15

16

16

16

16

15

15

-

Dec.

15

15

15

15

15

15

16

16

16

15

15

15

15

15

15

15

17

1818'

20

25

30

34

32

31

28

27

26

25

24

24

Jan.

24

25

60

148

110

418

270

581

375

235

166

131

108

90

80

72

67

61

58

54

52

49

46

44

41

40

40

37

35

34

34

Feb.

32

32

32

32

35

41

41

37

35

43

78

70

61

54

51

49

67

74

69

63

58

54

49

49

47

44

43

43

43

_

-

Month

December. ..................................

Calendar year 1947 ......................

April ......................................

May. .......................................

September ......................... ........

Water year 1947-48 ......................

Mar.

41

38

32

28

26

25

24

24

24

23

23

22

24

27

30

35

41

49

65

74

88

82

238

2,250

1,020

510

416

330

320

304

2S6

Apr.*

233

215

330

504

686

587

519

546

2,200

1,570

1,210

789

600

628

2,850

2,120

1,260

854

646

531

454

439

403

373

327

294

276

260

282

878

-

Seoondfoot-days

622

40,069.6

6,770

80, 7 '2.1

May

610

446

384

343

307

279

254

239

224

210

193

215

282

333

384

363

346

373

391

401

307

248

236

254

327

333

327

314

314

304

210

Maximum

34

2,000

320

2,850

June

137

114

112

154

187

168

171

154

156

236

269

269

248

272

282

285

301

336

350

350

353

387

387

370

343

330

330

327

323

340

-

Minimum

15

2.2

193

327

88

2.5

July

367

367

360

350

353

356

350

346

340

340

343

327

327

336

353

356

3S7

373

384

384

370

360

350

356

356

356

360

367

370

405

416

Aug.

387

373

353

327

323

327

323

323

323

317

307

285

272

269

279

310

323

343

346

327

304

269

260

269

272

269

266

266

269

288

301

Mean

20.1

110

226

221

Sept.

298

298

314

320

314

301

304

307

301

304

304

298

298

282

276

269

254

233

198

171

151

132

112

119

119

112

103

97

93

88

-

Runoff in 

acre feet

1,230

79,470

13,430

160,200

Peak discharge (base, 3,500 sec.-ft.).- No peak above base
COLUSA AND YOLO BASINS

Location.- Water-stage recorder, lat. 38°43'30", long. 121°48'25", in Rio Jesus Maria 

Grant, 800 feet upstream from highway bridge and 0.5 mile south of Yolo, Yolo County. 

Altitude of gage, about 60 feet (from topographic map).

Drainage area.- 1,137 square miles (revised). 

Records available.- January 1903 to September 1948. 

Average discharge.- 45 years, 511 second-feet.

Extremes.- Maximum discharge during year, 2,310 second-feet Apr. 16 (gage height, 5.94 

I'eet); no flow for several months.

1903-48: Maximum discharge, 28,700 second-feet plus overflow on right bank estimated as 10,000 second-feet Feb. 28, 1940 (gage height, 29.0 feet); no flow at times each 

year.

Maximum stage observed, 29.8 feet Feb. 2, 1915, staff gage reading.

Remarks.- Records good. Many diversions above station for irrigation. Flow regulated by 

Clear Lake beginning in 1915 (see p. 390).

ting table, water year 1947-48 (gage height, in feet, 

and discharge, In second-feet)

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

2.2 

2.4 

2.7

119

173

232

298

410

535

775

4.0 1,050

4.5 1,350

5.0 1,650

5.3 1,860

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

0

0

0

0

0

0

0

0

302

208

124

61

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

Month

October. ...................................

November ...................................

December ....................................

Calendar year 1947 ......................

January ....................................

February ...................................

March ......................................

April. .....................................

Hay. qV .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

530

810

349

196

137

129

94

1.6

Apr.

0

0

0

3.8

339

342

342

281

1,090

1-.030

990

650

470

361

1,160.

1,820

1,020

685

490

386

305

264

254

232

193

156

132

114

119

339

-

Secondfoot-days

0

0

0

15, 819 . 7

695

0

2,246.6

13,567.8

2,012.7

0

0

0

0

18,522.1

Hay

508

357

274

235

205

170

119

74

42

25

3.7

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0o0

1,930

302

0

810

1,820

508

0

0

0

0

1,820

June

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

July Aug.

Mean

0

0

0

43.3

22.4

0

72.5

452

64.9

0

0

0

0

50.6

Sept.

Runoff in 

acre-feet

0

0

0

31,380

1,380

0

4,460

26,910

3,990

0

0

0

0

36,740

Peak discharge (base, 2,200 sec.-ft.).- Apr. 16 (2
394 COLUSA AND YOLO BASINS

Kelsey Creek near Kelseyville, Calif.

Location.- Water-stage recorder, lat. 38°55'45", long. 12-2°50'25", in SE^ sec. 34, T.' 

 13 N., R. 9 W., 1.5 miles downstream from Widow Creek and 3.5 miles south of Kelseyville. Altitude of gage, about 1,450 feet (from topographic map).

Drainage area.- 37.4 square miles.

Records available.- October 1946 to September 1948. December 1945 to September 1946 in 

unpublished reports of Bureau of Reclamation.

Extremes.- Maximum discharge during year, 1,860 second-feet Mar. 23 (gage height, 8.06 

1'eet); minimum, 0.6 second-foot Sept. 11-13.

1946-48: Maximum discharge, 2,320 second-feet Nov. 22, 1946 (gage height, 9.38 

feet), from rating curve extended above 1,200 second-feet by logarithmic plotting; 

minimum, that of Sept. 11-13, 1948.

Remarks.- Records good except those for period of no gage-height record, which are 

fair. No storage or diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

a

4

b

6

7

8

9

10

11

12

13

14

Ib

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.8

2.0

2.0

2.0

1.8

2.0

3.3

6.5

6.8

16.0

16.0

7.8

5.6

5.1

5.6

102.0

21. 0

12.0

9.2

8.6

8.6

7.8

7.2

7.2

6.8

6.5

6.5

8.2

40

24

15

Nov.

31

26

17

14

12

11

10

9.6

8.9

8.6

8.6

8.6

8.2

8.2

9.6

9.2

8.6

8.2

7.8

7.8

7.5

7.2

6.8

6.8

6.8

6.5

6.5

6.5

6.5

6.5

-

Dec.

6.5

6.5

6.5

6.5

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

10

9.6

8.9

59

32

20

16

13

12

11

11

10

10

9.6

3.2

Jan.

10

64

41

125

236

105

274

154

73

48

36

30

26

24

22

21

20

18

17

16

15

15

14

14

14

13

12

11

11

11

11

Feb.

11

11

11

12

12

11

11

11

29

21

16

15

14

13

15

17

15

14

14

13

13

13

13

13

12

12

12

14

13

_

-

Month

December . ..................................

Calendar year 1947 ......................

April. .....................................

May........................................

September. .................................

Water year 1947 48 ......................

Mar.

12

11

11

11

11

11

11

11

11

11

10

11

18

24

32

48

52

38

46

33

28

28

944

641

228

130

89

85

77

61

52

Apr.

49

70

91

385

217

190

138

451

404

444

263

190

152

400

510

289

217

172

140

114

112

112

94

77

67

62

57

58

200

340

-

Secondfoot-days

348.9

9,951.6

1,501

6,065

44.4

14,188:4

May

190

146

115

96

81

71

64

59

53

50

46

43

40

38

36

34

34

34

33

32

32

29

28

27

26

24

24

24

27

28

27

Maximum

59

946

2.0

944

June

25

23

22

21

23

28

22

21

20

19

19

18

17

17

17

16

16

15

15

15

15

14

13

13

12

11

11

10

10

10

-

Minimum

6.5

1.2

.8

0.8

July

9.6

a9.0

a8. 5

a8. 5

a8. 5

aS.O

a7.5

a7.5

37.0

36.5

a6.0

a5.5

a5.5

aS.O

a5.O

aS.O

aS.O

a4.5

a4.5

34.5

4.0

4.0

4.0

4.0

4.0

4.0

3.7

3.7

3.5

3.7

3.7

Aug.

3.7

3.5

3.5

3.2

3.2

3.0

3.0

3.0

3.2

3.2

3.2

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.2

3.2

3.0

3.0

3T2

3.5

3.2

3.0

2.8

2.8

2.6

2.3

2.0

Mean

11.3

27.3

5 59

1.48

38.8

Sept.

1.8

1.6

1.5

1.5

1.5

1.3

1.2

1.0

1.0

.9

.8

.8

.8

.8

.9

.9

1.5

3.0

2.0

2.0

1.8

1.8

1.8

1.8

1.8

1.8

2.0

2.0

2.0

1.8

Runoff in 

acre-feet

692

19,750

3 980

795

88

28.160

sec.-ft.; Apr. 8 (4 p.m.) 1,110 

Ho gage-height record; discharge computed on basis of records for Putah Creek nesr Guenoc.
COLOSA AND YOLO BASINS 395

Location.- Water-stage recorder, lat. 39°01 T , long. 122°33', in NEij 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 1,035.60 feet above mean sea level,

preliminary adjustment of 1929. 

Drainage area.- 198 square miles. 

Records available.- July 1930 to September 1948. 

Average discharge.- 18 years, 169 se?ond-feet. 

Extremes.- Maximum discharge during year, 2,880 second-feet Mar. 23 (gage height, 7.18

feet); minimum, 0.1 second-foot Sept. 13-16.

1950-48: Maximum discharge, 20,000 second-feet Feb. 28, 1940 (gage height, 13.9

feet), by slope-area method and logarithmic plotting; no flow at times during each year

1930-36. 

Remarks.- Records good except those above 1,000 second-feet, which are fair. Several small

diversions above station. 

Revisions (water years).- W 831: 1932 (M).-

100

150

208

312

Hote.- Same as preceding table abo-v 

3.7 feet. 

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.2

.2

.2

.2

.2

.2

.2

.2

l.C

2 . 5

1.4

.6

.4

.4

.4

.9

. 6

.5

.6

.7

1.1

1.2

1.5

1.7

1.9

1.9

Z.Z

3.5

21

59

33

Nov.

26

36

30

24

20

17

16

15

14

13

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

11

11

11

-

Dec.

11

11

11

11

12

12

11

11

11

11

11

11

11

11

11

11

13

12

12

19

36

29

25

23

20

19

18

17

16

16

15

Jan.

16

130

204

111

541

306

548

472

217

140

102

78

65

57

52

47

44

40

37

34

32

30

29

28

27

25

24

24

24

24

23

Feb.

23 "23

22

24

25

25

23

23

61

75

54

45

39

37

42

73

64

57

52

47

44

43

44

39

37

36

34

38

35

-

-

Month

October. ................................. .

November. . ................... . . .........

December. . .............................. .

Calendar year 1947 ......................

January. ................................. .

February. ....................... .... .....

March ....... .............. ...............

April ......................................

May. .......................................

June .......................................

July. ......................................

August .............. ......................

September. .......... ...... ...........

Water year 1947-48 ...... ...............

Mar.

32

31

30

29

28

27

26

28

29

28

26

26

31

37

39

46

71

71

92

91

76

70

1,120

1,100

576

371

306

293

277

253

219

Apr.

191

191

406

541

532

570

430

929

1,180

1,280

838

600

482

1,080

1,650

1,120

810

600

468

382

343

350

322

274

240

219

204

212

238

410

-

Secondfoot days

139 7

438

468

17,970.6

3,531

1,189

5,479

17,092

4,188

1,350

339.3

58.7

17.4

34,290.1

May

390

319

277

250

223

202

184

172

159

147

135

124

119

111

103

97

94

94

94

96

91

82

75

70

66

64

63

63

67

82

75

Maximum

59

36

36

1,720

548

78

1,120

1,650

390

88

20

3.5

1.4

1,650

June

65

60

57

58

75

88

69

60

59

57

55

52

48

46

43

42

40

38

36

35

33

31

29

29

27

26

25

24

22

21

-

Minimum

0.2

11

11

.2

16

22

26

191

63

21

3.7

.5

.1

.1

July

20

18

18

18

18

19

18

17

16

15

14

14

13

12

11

10

9.0

8.4

8.1

7.5

6.9

6.0

5.7

5.7

5.4

5.0

4.7

4.2

4.0

4.0

3.7^

Aug.

3.5

3.3

3.1

2.9

2.9

2.7

2.5

2.5

2.5

2.5

2.3

2.1

1.7

1.7

1.6

1.6

1.7

1.7

1.7

1.6

1.4

1.4

1.7

1.7

1.6

1.4

1.1

.7

.6

.5

.5

Mean

4 . 51

14.6

 15.1

49.2

114

41.0

177

570

135

45 . 0

10.9

1.89

. DO

93.7

Sept.

0.4

.4

.4

.4

.4

.4

.4

.4

.5

.4

.2

.2

.2

.1

.1

.2

.6

.6

.5

.6

.6

.6

.7

.9

1.1

1.2

1.4

1.2

1.2

1.1

-

Runoff in 

acre feet

277

869

928

35,640

7,000

2,360

10,870

33,900

8,310

2,680

673

116

35

68,020

;eak discharge (base, 1,500 sec.-ft.).- Mar. 23 (7 p.m. 

:.-ft.; Apr. 15 (12:30 p.m.) 2,230 see.-ft.
396

Location.- Water-stage recorder, lat. 38°46', long. 122°31', In sec. 22, T. 11 N., R. 6 

W., just upstream from Coyote Valley dam site, 2.6 miles upstream from Jerusalem Creek 

and 3.3 miles (revised) 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 1948.

Average discharge.- 18 years (1930-48) 185 second-feet.

Extremes.- Maximum discharge during year, 4,970 second-feet Apr. 8 (gage height, 10.16 

feet); minimum, 2.1 second-feet Sept. 10.

1904-6, 1930-48: 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 secondfeet; minimum, 0.6 second-foot Sept. 30, Oct. 4, 1932.

Remarks. - Records excellent: except those for period of no gage-height record, which are 

goodT Small diversions above station.

Rating table, wate

9.5

13

year 1947-48 (gage height, 

charge, in second-feet)

171

276

404

Discharge, in second-feet, water year October 1947 to September 194E

Day Oct. Dec. Jan. Feb. Mar. Hay July Aug. Sept.

195

93

a!70 

a!40 

a!20 

alOS 

92

216

193

179

163

148

139

129

121

111

105

8.8 

8.5

446

307

274

272

229

191

20

19

18

17

16

5.4 

5.4 

5.2 

5.2 

4.6

4.6 

4.6 

4.2 

4.2

Secondfoot-days

Runoff in 

acre-feet

October.. 

November. 

December.

Calendar year 1947

January. . . 

February.. 

March.....

April.....

May.......

June......

July......

August....

September.

25

167

243

665

150

Water year 1947-48

Peak discharge (base, 5,300 sec.-ft.).- Mar. 23 (7:30 p.m.) 

4,970 see.-ft.

a No gage-height record; discharge computed on basis of rec 

station near Winters.

.-ft.; Afr. 8 (5:30 p.m.) 

2 In stage anu records for
COLUSA AND YOLO BASINS 397

Putah Creek near Winters, Calif.

Location.- Water-stage recorder, lat. 38°31' , long. 122°05', in NEij sec. 28, T. 8 N., R. 2

W., b miles west of Winters and 8 miles downstream from Capell Creek. Datum of gage is

160.75 feet above mean sea level (river-profile survey). 

Drainage area.- 614 square miles. 

Kecoras available.- June 1930 to September 1948. 1905-31 at site at Winters, 6 miles

downstream; records equivalent except for very low flows. 

Average discharge.- 18 years (1930-48), 458 second-feet. 

Extremes.- Maximum discharge during year, 6,540 second-feet Mar. 24 (gage height, 13.70

I'eet); minimum, 1.3 second feet Aug. 15.

1905-48: Maximum discharge, 70,500 second-feet Feb. 27, 1940 (gage height, 30.5

feet, present datum), from rating curve extended above 28,000 second-feet by slope-area

computations; minimum (at present site), 0.3 second-foot Aug. 23, 24, 26, 27, 1931,

Aug. 7, Sept. 24, 25, 1939. 

Remarks.- Records good except those below 10 second-feet, which are fair. Several pumps

above station divert water for irrigation. 

Revisions (water years).- W 901: 1937(M), 1938(M).

Rating tables, water year 1947-48 (gage height, in fe 

and discharge, in second-feet)

Oct. 1 to Jan. 4 Jan. 5 to Sept. 30

4.0 

4.2

4.4 

4.7 

5.0 

5.4 

5.8 

6.1

91

141

203

257

1.3

2.4

3.9

5.8

8.2

11

4.0 

4.2 

4.4 

4.7 

5.0 

5.4

95

140

5.8 

6.2 

6.6 

7.0 

7.5 

8.0

194

258

335

431

580

760

8.5

9.5

10.0

11.0

12.0

12.5

980

1,500

1,800

2,600

3,800

4,530

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.9

4.1

4.1

3.9

3.3

2.4

3.3

6.3

7.2

9.9

10

7.7

6.5

5.6

5.6

7.5

140

103

47

28

19

14

12

11

11

9.9

9.4

9.6

12

12

43

Nov.

63

60

102

86

66

54

47

41

38

37

32

30

28

26

28

27

27

27

26

25

24

23

23

23

23

22

22

22

23

22

-

Dec.

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

23

24

24

27

27

31

51

57

53

47

43

40

38

36

35

Jan.

34

37

212

255

1,040

917

608

1,580

642

376

276

220

186

161

144

132

121

113

105

97

91

86

82

78

74

71

66

63

61

60

57

Feb.

53

51

49

52

55

62

70

65

62

72

118

95

79

71

66

61

77

87

80

75

72

69

63

59

58

55

53

53

53

-

-

Month

October. ...................................

November ......................... .........

December. ...................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July ..................................

Augu 

Sept

St. ....................................

embe r ..................................

Water year 1947-48 ......................

Mar.

55

53

51

44

41

39

37

38

37

36

37

39

43

45

52

59

90

140

126

146

133

117

810

4,500

1,940

885

565

407

399

363

305

Apr.

260

237

773

1,110

1,530

1,200

908

757

3,680

2,390

1,580

1,060

760

629

2.89O

2,360

1,350

945

702

565

478

562

535

431

377

323

295

280

317

2,420

-

Secondfoot-days

572 2

1,09?'

892

57,072.1

8,045 

1 935

n!e32

31,704

1, 858 

229 . 8

86.9 

166.0

67,194.9

May

1,600

908

660

529

440

377

329

299

278

256

237

22O

206

196

184

174

166

162

162

162

162

158

145

134

127

119

108

104

105

124

146

Maximum

140

102

57

9,560

1,580 

118

4,500

3, 680

1,600

163

13 

3.6 

8.2

4,500

June

163

138

119

110

108

107

103

97

87

81

78

74

63

56

52

46

44

43

39

34

36

32

27

24

20

19

18

16

14

10

Minimum

2.4

22 

21

2.3

34 

49

36

237

104

10

3.0 

1.4 

3.6

1.4

July

13

12

12

11

9.6

9.6

8.5

7.2

7.7

7.7

8.2

8.2

7.5

7.0

7.7

7.0

6.3

6.3

7.0

7.0

6.8

6.3

5.8

6.3

6.5

7.0

6.0

4.7

3.9

3.0

3.0

Aug.

3.0

3.4

3.4

2.2

2.7

2.8

2.8

3.2

3.6

3.4

2.7

2.4

2.1

1.7

1.4

2.2

2.8

3.2

3.3

3.0

2.7

2.7

3.2

3.3

3.2

3.3

3.2

3.0

2.8

2.2

2.0

Mean

18 . 5

36.6 

28.8

156

66 . 7

375

1,057

290

7.41 

2.80 

5.53

184

Sept.

3.6

4.1

4.1

4.5

4.8

5.4

5.0

5.2

5.6

5.4

5.2

4.7

4.3

4.3

4.8

5.4

6.8

8.2

8.0

7.5

6.8

6.0

5.6

5.6

5.6

5.8

6.3

6.0

5.6

5.8

Runoff in 

acre-feet

1,130

2, 180 

1,770

113,200

15,960

3,840

23,070

62, 880

17,810

3,690

456 

172 

329

133,300

Peak discharge (base, 4,800 sec.-ft.).- Mar. 24 (1 a.m.) 6,540 sec.-ft.; Apr. 9 (4 a.m.) 6,27O 

ee.-ft.; Apr. 15 (8:30 p.m.) 5,210 sec.-ft.
398 NAPA RIVER BASIN

Napa River near St. Helena, Calif.

Location.- Water-stage recorder, lat. 38°29'40", long. 122°25'50", in SE-J- sec. 32, T. 8 

N., K. 5 W., 0.2 mile upstream from highway bridge, 1.3 miles northeast of Zinfandel, 

and 2.5 miles east of St. Helena. Altitude of gage, about 200 feet (from topographic 

map).

Drainage area.- 83.5 square miles.

Keeords available.- November 1929 to September 1932, November 1939 to September 1948.

Average discharge.- 10 years (1930-32, 1940-48), 75.8 second-feet.

.Extremes.- Maximum discharge during year, 2,310 second-feet Mar. 23 (gage height, 6.12 

feet); no flow Oct. 1-6, and at times Oct. 7-9, arid during August and September.

1929-32, 1939-48: Maximum discharge, 11,800 second-feet Feb. 6, 1942 (gage height, 

14.6 feet); no flow at times during 1940, 1944, 1945, 1947.

Remarks.- Records good except those for October, August, and September, which are fair, 

amall diversions above station-for irrigation.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1 to Nov. 9, July 22 to Sept. 30)

Oct. 1 to Mar. 23 24 to Sept. 30

1.9 126

2.1 170

2.3 224

2.5 281

2.8 377

4.0 94O

1.2

1.3

1.4

1.5

Note.- Same as preceding table above

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

21

23

26

27

28

29

30

31

Oct.

0

0

O

0

0

0

.3

.3

.2

.8

.6

.5

.5

.6

.6

30

14

4.3

2 . 3

1.5

1.3

1.3

1.5

1.6

2.6

3.1

3.0

2.8

8.6

12

6.3

Nov.

5.5

14

9.4

6.3

5.0

4.1

3.5

3.5

3.3

3.1

3.3

3.3

3.3

3.3

3.9

4.5

3.9

3.5

3.3

3.3

3.5

4.1

4.1

4.1

4.3

4.3

4.3

4.3

4.3

4.3

"

Dec.

4.3

4.1

4.1

4.3

4.3

4.3

4.3

4.1

4.1

3.9

3.9

3.9

3.9

3.9

3.9

4.1

4.8

5.2

5.0

7.0

7.8

5.7

5.2

5.2

5.2

5.2

5.5

5.2

5.2

5.2

5.2

Jan.

6.0

24

44

74

242

74

428 -

262

95

88

48

29

23

18

15

15

19

14

12

11

10

10

9.8

9.8

9.4

9.0

9.0

9.0

9.0

8.6

8.6

Feb.

8.6

8.6

8.6

9.4

10 '

9.4

8.2

7.8

14

19

13

10

9.4

9.4

9.4

14

13

12

11

10

10

9.8

9.4

9.4

9.4

9.4

9.4

9.8

9.0

_ .

-

Month

December. ................................ .

Calendar year 1947 ......................

Janu 

Februarv ................................

March. .....................................

April. ....................... .... ... . .

May........................................

July. ................................

Augu 

Sept

St. ....................................

ember ..................................

Water year 1947-48 ......................

Mar.

9.0

9.0

8.6

8.2

8.2

8.6

8.2

9.0

9.0

8.6

8.2

8.2

9.0

9.8

11

12

15

14

17

15

14

14

847

742

300

153

104

93

92

82

66

Apr.

56

144

252

338

269

269

178

256

363

472

281

191

138

212

698

413

305

207

153

122

134

173

124

102

88

80

76

76

216

447

-

Secondfoot-days

148.0

9,774.3

1,643.2

55.4 

25.3

14,419.6

May

275

183

136

113

95

84

71

72

65

58

52

49

45

42

39

37

37

34

34

35

34

31

28

27

26

25

24

24

24

32

43

Maximum

7.8

1,720

428

3.6 

1.3

847

June

30

26

24

23

23

22

20

18

18

18

18

17

16

15

15

14

14

14

13

12

10

9.6

8.7

9.6

12

10

9.2

7.2

7.8

5.4

Minimum

3.9

0

6.0

.5 

.2

0

July

5.1

5.1

9.2

9.2

9.2

7.2

5.3

5.4

5.0

6.4

6.7

3.1

2.9

3.5

2.7

1.1

.9

2.5

2.4

3.0

3.3

3.1

2.4

2.4

3.6

2.6

3.4

3.1

2.4

2.2

2.3

Aug.

2.5

2.3

3.6

2.9

2.3

1.8

2.2

2.2

1.6

1.5

2.7

2.4

1.4

2.5

1.4

1.0

1.1

2.0

1.8

1.8

1.7

1.7

1.7

1.7

1.4

1.8

1.7

.6

.6

1.0

.5

Mean

4.77

26.8

53.0

1.79 

.84

39.4

Sept.

0.5

.8

1.1

.5

.4

1.3

1.3

1.2

1.2

1.1

1.1

.9

.2

.3

.3

.3

.2

.2

.2

1.1

.9

1.0

1.0

.9

.4

Runoff in 

acre-feet

294

19,380

3,260

110

28,600
NAPA RIVER BASIN 399

Conn Creek near St. Helena, Calif.

Location.- Water-stage recorder, lat. 38°29', long. 122°24', in NWir sec. 3, T. 7 N., R. 

5 W., 0.2 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 1948.

Average discharge.- 15 years (1930-45), prior to construction of Conn Valley Dam, 34.7 

second-feet;

Extremes.- Maximum discharge during year, 66 second-feet June 1 (gage height, 2.32 feet); 

no flow for several months.

1930-48: Maximum discharge, 7,700 second r feet Feb. 27, 1940 (gage height, 11.80 

feet), from rating curve extended above 6,000 second-feet; no flow for several months 

each year.

Remarks.- Records good. Plow completely regulated by storage in Conn Valley Reservoir 

beginning in December 1945 (capacity, 31,000 acre-feet); contents, 17,100 acre-feet 

Sept. 30, 1947, and 18,700 acre-feet Sept. 30, 1948. Small diversions for water 

supply and irrigation.

Discharge, in second-feet, water year October 1947 to September 1948

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.

6.7

6.7

6.7

6.7

7.3

8.0

8.0

8.0

8.7

8.7

8.0

8.0

8.0

7.3

8.0

9.5

7.3

7.3

5.1

1.3

6.1

7.3

8.7

10

10

10

9.5

9.5

10

9.5

6.8

Nov.

3.1

.2

.1

0

0

0

0

0

0

0

0

0

0

0

2.6

8.7

11

10

8.7

8.7

8.7

8.7

9.5

9.5

7.0

.6

.2

0

0

.2

-

Dec.

0.5

.5

.2

.2

.2

.3

.3

.3

.3

.5

.5

.5

.5

.5

.6

.6

.6

.4

.4

.6

.5

.5

.8

.5

.5

.5

.5

.4

.4

.4

.4

Jan.

0.2

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

Feb.

Month

October. ............................ ......

November . ..................................

December ...................................

Calendar year 1947 ......................

January. ................................. .

February. ....................... ..........

March. .....................................

April ......................................

May. .......................................

June ........................'...............

July.. .....................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

2

1

.1

0

0

0

0

0

Apr.

Secondroot-days

242.7

97.5

13.9

998.0

.2

0

.5

0

202.9

204.9

231.7

70.2

0

1,064.5

May

0

0

3.3

4.5

4.5

5.0

5.6

5.6

6.7

8.7

6.7

7.3

8.0

8.7

8.7

9.5

9.5

9.5

9.5

8.7

8.7

8.7

8.0

7.3

6.7

6.1

5.6

5.6

5.6

5.6

5.0

Maximum

10

11

.8

11

.2

0

.2

0

9.5

15

13

5.6

0

15

June

5.6

4.0

4.5

4.5

4.5

4.5

4.5

5.0

5.0

5.0

5.6

5.6

5.6

5.6

5.6

7.3

5.6

3.2

3.2

2.8

3.6

7.3

7.3

9.5

11

13

14

15

14

13

-

Minimum

1.3

0

.2

0

0

0

0

0

0

2.8

4.5

0

0

0

July

13

11

10

10

9.5

9.5

9.5

9.5

8.7

8.7

8.7

8.0

8.0

7.3

7.3

6.1

6.1

6.1

5.6

5.6

4.5

4.5

5.0

6.1

6.7

6.7

6.1

6.1

6.1

6.1

5.6

Aug.

5.6

5.6

5.6

5.6

5.0

4.0

3.2

3.2

3.2

2.5

2.2

2.2

2.2

2.2

2.2

2.2

1.9

1.9

1.9

1.9

1.9

1.9

1.7

.3

.1

0

0

0

0

0

0

Mean

7.83

3.25

.45

2.73

.01

0

.02

0

6,55

6.83

7.47

2.26

0

2.91

Sept.

Runoff in 

acre-feet

481

193

28

1,980

.4

0

1.0

0

402

406

460

139

0

2,110
100 NOVATO CREEK BASIN

Novato Creek near Novato, Calif.

Location - Water-stage recorder, lat. 38°07', long. 122°36','in Novato Grant, 500 feet 

downstream from county road bridge and 1 mile west of U. S. Highway 101 in Hovato, 

Marin County. Altitude of gage, about 45 feet (from topographic map).

Drainage area.- 16.9 square miles.

Records available.- October 1946 to September 1948.

Extremes.- Maximum discharge during year, 132 second-feet Mar. 23 (gage height, 2.67 

feet); no flow for several months.

1946-48: Maximum discharge, 239 second-feet Mar. 3, 1947 (gage height, 3.20 feet); 

no flow for several months each year.

lemarks.- Records fair. No storage or diversion.

Discharge, in second-feet, water year October 1947 to September 194

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

2V

28

29

30

31

Oct. Nov. Dec.

0

0

0

0

o

0

0

o

o

0

o

0

0

o

o

0

0

o

0

.3

.7

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

Jan.

0.1

.3

.8

.4

.4

.4

.5

1.4

.6

.4

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Feb.

0.1

.1

.2

.5

.8

.7

.3

.3

.7

.9

.5

.3

.3

.2

.2

.2

.2

.3

.3

.3

.2

.3

.3

.2

.2

.2

.2

.6

.5

_

-

Month

December ...................................

Calendar year 1947 ......................

April ......................................

September ..................................

Water year 1947-48 ......................

Mar.

o'.4

.3

.3

.3

.2

.3

.2

.2

.2

.1

.1

.1

.2

.3

.2

1.1

.9

.5

.6

.6

.3

.1

23

38

18

8.4

5.7

5.3

.5.3

3.9

3.1

Apr.

3.1

3.9

5.7

19

12

9.4

7.5

31

25

42

20

12

8.9

9.4

14

8.9

7.1

5.3

4.2

3.6

3.6

3.6

3.1

2.6

2.4

2.2

2.0

2.2

11

8.4

-

Secondfoot-days

o

2.1

915.8

75 2

0

525. 0

May

5.3

3.9

3.3

3.1

3.1

3.1

2.8

2.8

2.2

3.3

3.3

3.1

2.8

2.6

2.4

2.2

2.0

1.9

1.9

2.0

1.9

1.7

1.7

1.7

1.7

1.6

1.7

1.6

1.6

1.9

1.0

Maximum

0

0

.7

95

.9

1.1

0

42

June

1.1

1.1

1.1

1.1

1.0

1.1

.9

.8

.8

.8

.8

.6

.7

.5

.6

.6

.5

.4

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

-

Minimum

0

O

0

0

.1

2.O

o

0

July

0.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

o

o

o

o

0

0

0

0

0

Aug.

Mean

O

0

.07

2.51

.26

.35

9.77

2.43

.54

0

1.43

Sept.

Runoff in 

acre feet

0

0

4.2

1,820

16

20

234

581

149

32

3.6

0

0

1,040

Peak discharge (base, 10O see.-ft.).- Mar. 23 (5 p.m.) 132 sec.-ft.
RUSSIAN RIVER BASIN 

Russian River near Hopland, Calif.

401

Location.- Water-stage recorder, lat. 39°01'35", long. 123°07'45", in Rancho de Sanel 

Urant, at highway bridge 0.2 mile downstream from McNab Creek, 4 miles north of Hopland, and 17 miles upstream from Sulphur Creek. Datum of gage is 497.43 feet above 

mean sea level, datum of 1929.

Drainage area.- 362 square miles.

Records available.- December 1939 to September 1948.

Extremes.- Maximum discharge during year, 11,600 second-feet Mar. 23 (gage height, 16.3 

rest); minimum, 38 second-feet July 27, Aug. 2.

1939-48: Maximum discharge, 34,100 second-feet. Feb. 28, 1940, from rating curve 

extended above 30,000 second-feet; maximum gage height, 26.12 feet Jan. 21, 1943; 

minimum discharge, 24 second-feet Dec. 18, 1943.

Flood of December 1937 reached a stage of about 30.0 feet, from floodmarks.

Remarks.- Records good. Flow considerably affected by diversion into basin; see "Remarks" 

for East Fork Russian River near Calpella. Small diversions above station for irrigation.

Revisions (water years).- W 1041: Drainage area.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Mar. 23 I

4.9 176 6.0 610 9.2 2,730

5.1 246 6.5 875 10.0 3,450

5.4 356 7.0 1,170 12.0 5,5OO

5.7 472 8.0 1,830 14.3 8,46O

4.8 27 5.5 251 7.0 1,080

4.9 48 5.8 370 8.0 l',760

5.0 76 6.1 525 9.2 2,730

5.2 144 6.5 760

Note.- Same as preceding table above

9.2 feet.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

176

179

193

196

200

186

200

217

224

253

271

228

224

221

224

624

356

271

250

246

246

242

239

235

232

228

228

235

383

371

293

Nov.

304

333

286

275

264

253

250

246

242

239

232

232

235

232

242

250

242

239

239

235

235

235

235

232

232

232

228

228

228

210

-

Dec.

179

210

214

217

217

217

210

203

214

210

217

214

214

214

214

210

221

221

221

394

326

307

289

271

257

250

246

242

239

235

232

Jan.

235

2,050

1,070

978

2,110

1,660

4,530

2,090

1,070

765

595

507

456

421

394

375

356

345

333

318

311

304

300

296

293

286

278

278

275

275

275

Feb.

271

271

268

264

275

275

264

286

2,580

1,070

675

542

460

424

1,10O

919

660

565

520

464

432

498

490

444

413

394

379

440

398

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1947 ......................

January ....................................

February ...................................

March.. ....................................

April ......................................

May. .......................................

June .......................................

July

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

379

364

352

341

333

326

322

318

345

329

314

307

333

439

498

1,040

1,040

732

721

595

529

547

8,360

5,310

2,890

1,770

1,320

1,120

1,030

930

790

Apr.

1

2

700

860

,500

,830

2,630

2,940

:

2

,950

,040

.000

siiso

2,350

1

1

2

,680

,350

,280

2,400

1,750

1

1

1

1

1

1

1

2

Secondfoot-days

7,871

7,365

7,325

115,538

23,829

16,041

34,024

51,159

18,137

2 47 2

4*302

5,842

186,306

,440

,220

,070

937

982

,310

,290

,050

892

820

778

790

,390

,750

May

1,700

1,250

1,070

970

859

77B

730

688

640

592

558

530

514

492

470

455

445

430

415

400

415

405

385

361

348

348

339

339

366

410

435

Maximum

624

333

394

6,63O

4,530

2,580

8,360

3,180

1,700

390 1'62

201

229

8,360

June

390

366

352

344

339

335

326

318

311

303

299

296

288

284

277

277

262

244

237

229

190

204

197

197

197

193

193

158

168

165

-

Minimum

176

210

179

235

264

307

700

339

158

44

46

168

44

July

162

162

144

120

110

103

100

79

62

54

48

48

46

46

46

48

96

56

54

93

100

103

86

51

48

46

44

76

79

76

86

Aug.

54

46

70

76

79

79

83

54

48

79

86

137

151

162

179

183

176

168

168

168

172

179

190

186

186

186

183

193

201

201

179

Sept.

176

168

172

179

172

193

176

172

168

172

193

183

193

183

179

183

215

229

222

215

215

211

208

208

211

208

208

211

211

208

-

 Runoff in Mean acre-feet

254 15,610

246 14,610

236 14,530

317 229,200

769 47,260

553 31 ,820

1,098 67,490

1,705 101,500

585 35,970

265 15,750

79.7 4,900

139 8,530

195 11,590

509 369,600

Pealc discharge (base, 9,50O sec.-ft.).- Mar. 23 (6:30 p.m.) 11,600 sec.-ft.
402 RUSSIAN RIVER BASIN

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 3.5 miles upstream from Dry Creek. Datum

of gage is 76.84 feet above mean sea level, datum of 1929 (levels by Corps of Engineers/. 

Drainage area.- 791 square miles.

Records available.- December 1939 to September 1948. 

Extremes.- Maximum discharge during year, 18,400 second-feet Mar. 24 (gage height, 13.05

feet); minimum, 66 second-feet July 16.

1939-48: Maximum discharge, 67,000 second-feet Feb. 28, 1940 (gage height, 30.0

feet), from rating curve extended above 50,000 second-feet; minimum observed, 46

second-feet June 27, 1947.

Flood of December 1937 reached a stage of 30.8 feet, from floodmarks. 

Remarks.- Records good. Several small diversions above station for irrigation. Flow also

affected by diversion into basin; see "Remarks" for East Fork Russian River near

Calpella. 

Revisions (water years).- W 1041: Drainage area.

Rating tables, water year 1947-48 (gage height, In fee

and discharge, in second-feet)

(Backwater corrections applied Oct. 1 to Nov.-17, 

Aug. 15 to Sept. 30)

Oct. 1 to Ma 24 Mar. 24 to Sept. 30

1.8 158 3.5 1,100 8.O 6,400

2.O 214 4.0 1,50O 9.O 8,200

2.2 290 5.0 2,460 lO.o 10,400

2.5 445 6.0 3,560 11.0 12,8OO

3.0 740 7.0 4,880 12.1 15,8OO

1.2 78 2.3 370

1.3 89 2.6 540

1.5 118 3.0 810

1.7 160 3.5 1,170

1.9 210 4.0 1,580

2.1 278 5.0 2,570

6.0 3,73C

7.0 5,10C

8.0 6,82C

9.O 8,900

9.5 10 , OOC

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

163

161

158

161

166

171

181

190

208

269

445

355

265

245

238

960

886

500

385

340

310

295

286

273

269

261

256

265

360

608

494

Nov.

512

644

518

450

406

370

355

340

330

320

310

305

305

305

320

325

330

325

315

310

305

305

305

30O

295

295

295

295

295

290

-

Dec.

286

269

282

286

286

286

286

286

277

282

282

282

273

277

282

282

305

315

310

558

754

590

530

478

440

412

396

380

370

360

355

Jan. 

360

898

2,580

1,820

4,180

3,380

5,930

7,800

3,200

2,030

1,500

1,210

1,030

901

810

734

680

644

608

572

536

518

494

478

462

445

428

418

412

4O6

396

Feb.

390

385

385

385

401

412

396

385

1,340

1,860

1,160

887

754

674

640

1,300

1,020

866

789

722

668

638

698

662

620

584

554

572

614

_

-

Month

October ....................................

November. ..................................

December. ...................................

Calendar year 1947 .......................

January ....................................

February. ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July........ ...............................

August .....................................

September. .................................

Water year 1947 -48 ......................

Uar.

554

524

506

489

462

450

445

440

450

450

423

428

472

512

692

859

1,560

1,280

1,150

1,040

908

838

6,350

15,800

7,910

4,430

3,140

2,550

2,390

2,110

1,780

Apr.

1,540

i,

1,950

5,260

1,380

5,250

5,680

it,530

5,920

),490

9,080

6,340

4

;

1,520

,510

5,120

10,000

6,720

4

2

2

t,670

,610

,920

2,450

2,260

2

2

2

,770

,590

,220

1,900

1,700

]

]

2

6

Seoondfoot days

10,124

10,375

11,057

213,929

45,860

20,761

61 , 392

126,040

38,201

12,361

4,201

4 ,287

5,013

349,672

,560

,510

,450

,140

-

May

4,620

3,300

2,610

2,220

1,920

1,720

1,540

1,430

1,330

1,230

1,130

1,060

1,010

950 908'

866

852

810

782

754

740

726

684

644

618

592

579

566

579

677

754

Maximum

960

644

754

15,700

7,800

1,860

15, 800

10,000

4,620

698

210

170

189

15,800

June

698

631

598

579

566

579

566

534

510

498

480

469

447

430

425

408

392

370

346

327

304

263

259

251

263

255

244

240

216

213

-

Minimum

158

290

269

63

360

385

423

1,510

566

213

88

104

145

88

July

210

207

202

194

184

174

165

158

142

132

122

115

110

105

98

88

96

110

126

118

118

134

145

147

136

120

112

105

102

110

116

Aug.

Mean

327

346

357

586

1 *716 479

1,980

4,201

1,232

412

136

138

167

955

120

120

112

107

108

112

113

116

116

108

104

110

116

138

138

138

149

153

153

153

153

158

162

165

165

165

165

165

165

170

170

Sept.

160

153

147

145

147

149

158

158

153,

151

147

151

156

156

156

153

160

172

184

189

187

187

187

184

184

187

189

187

187

189

-

Runoff in 

acre-feet

20,080

20,580

21,930

424,200

90,960

41,180

121,800

250,000

75,770

24 520

8 |330

8,500

9,940

693,600

Peak discharge (ba 18,000 sec.-ft.).- Mar. 24 (9 a.m.) 18,400 sec.-ft.
RUSSIAN RIVER BASIN 403

Russian River at Guerneville, Calif.

Location.- Wire-weight gage, lat. 38°30'03", long. 122°59'36", in NW£ sec. 32, T. 8 N., 

K. iU W., at highway bridge in Guerneville, 6.5 miles upstream from Austin Creek. 

Datum of gage is 8.67 feet above mean sea level, datum of 1929.

Drainage area.- 1,346 square miles.

Records available.- December 1939 to September 1948.

Extremes.- Maximum discharge during year, 23,400 second-feet Mar. 24 (gage height, 21.6 

feet), minimum, 95 second-feet Aug. 4.

1939-48: Maximum discharge, 88,400 second-feet Feb. 28, 1940 (gage height, 46.87 

feet); minimum observed, 64 second-feet Aug. 7, 1947.

Remarks.- Records good except those for Oct. 1-27, May 28 to June 14, which are fair. 

Gage read twice daily with additional readings in periods of high water except for 

June 15 to Sept. 30 when record from a temporary recorder 4 miles above Guerneville 

was used. Many diversions above station for irrigation. Flow also affected by 

diversion into basin; see "Remarks" for East Fork Russian River near Calpella.

Revisions (water years).- W 1041: Drainage area.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

160

160

155

155

160

165

180

190

200

400

500

450

400

350

300

1,100

1,000

900

700

520

450

400

350

330

310

300

290

315

435

656

673

Nov.

596

712

690

596

530

486

455

425

405

385

375

365

355

350

365

380

;4 85

370

355

345

340

340

335

330

330

330

325

325

320

315

Dec.

310

295

295

300

300

300

300

300

295

295

295

295

295

290

290

295

315

325

340

435

1,040

798

684

607

563

519

492

465

445

430

415

Jan.

415

541

3,160

3,420

5,220

5,580

6,920

12,800

6,280

3,970

2,920

2,280

1,830

1,500

1,250

1,100

986

894

822

762

717

684

656

629

607

585

558

530

519

508

502

Feb.

497

480

475

475

524

524

514

497

552

2,640

1,650

1,180

986

858

792

1,150

1,230

1,060

972

918

840

792

762

792

739

706

678

673

717

-

Month

November ...................................

December ....................................

Calendar year 1947 ......................

March ......................................

April. .....................................

July. ......................... \............

September ........... '. ......................

Water year 1947-48 ......................

Mar.

678

651

618

596

574

563

541

530

541

546

 624

508

541

607

695

958

1,790

1,870

1,570

1,48O

1,240

1,100

3,030

20,600

15,200

8,100

5,400

4,120

4,080

3,620

3,040

Apr.

2,60O

2,800

5,460

5,640

7,820

7,750

6,990

6,520

14,100

13,700

11,100

7,820

5,820

7,450

17,800

15,200

9,800

7,120

5,480

4,460

3,930

4,800

4,300

3,870

3,350

2,950

2,680

2,530

3,060

8,520

Secondfoot-days

12,654

12,215

12,623

306,580

34,673

205,400

5,217

513,197

May

8,240

5,820

4,600

3,880

3,370

2,980

2,650

2,400

2,190

2,010

1,820

1,700

1,620

1,470

1,380

1,300

1,240

1,180

1,130

1,080

1,010

958

906

858

810

774

750

720

780

850

900.

Maximum

1,100

712

1,040

18 , 900

2,640

20,600

17,800

8,240

850

249

168

195

20,600

June

850

780

740

720

700

680

660

650

620

600

580

570

560

550

529

510

492

471

421

399

399

364

312

328

304

300

297

290

274

257

Minimum

155

315

290

-

415

475

508

2,510

720

257

98

100

156

98

July

249

241

233

226

219

190

174

178

168

162

155

148

145

134

134

126

124

120

122

122

119

119

122

128

130

132

131

119

112

100

98

Aug.

103

106

106

103

100

100

103

108

108

107

103

102

105

107

118

130

140

146

154

155

155

156

159

159

165

168

168

168

164

165

165

Mean

408

407

407

840

2,230

851

2,771

6,847

1,980

507

151

132

174

1,402

Sept.

169

164

160

158

158

160

163

167

164

162

158

156

160

160

160

160

165

169

178

190

193

195

195

195

192

193

193

193

195

192

-

Runoff in 

acre-feet

25,100

24,230

25,040

608,100

137,100

48,940

170,400

407,400

121,700

30,160

9,280

8,120

10,350

1,018,000

Hote.- Stage-discharge relation indefinite Oct. 1-27, May 28 to June 14j discharEe^com£Uted_on 

basis oiV records for station near Healdsburg.
404 RUSSIAN RIVER BASIN

East Pork Russian River near Calpella, Calif.

Location.- Water-stage recorder, lat. 39°15', long. 123°09', in sec. 13, T. 16 N., R. 

12 W., 1 mile downstream from Cold Creek and 3 miles east of Calpella. Altitude of 

gage, about 720 feet (from topographic map).

Drainage area.- 94.0 square miles.

Records available.- November'1941 to September 1948.

Extremes.- Maximum discharge during year, 4,980 second-feet Mar. 23 (gage height, 9 84 

feetj; minimum, 29 second-feet July 8.

1941-48: Maximum discharge, 11,200 second-feet Jan. 21, 1943 (gage height, 13.67 

feet), from rating curve extended above 5,000 second-feet by logarithmic plotting; 

minimum, 7 second-feet Dec. 13, 1943.

Remarks.- Records good. Flow greatly affected by diversion from Eel River through Potter 

Valley powerhouse (see p. 411).

Small diversions above station for irrigation.

Revisions (water years).- W 1041: Drainage area.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

0.9 30 1.7 78

1.0 34 2.0 104

1.1 39 2.3 136

1.2 44 2.6 178

1.3 50 3.0 258

1.5 63 3.5 384

4.0 530

4.5

s.o :

6.0 1,3

7.0 2,C

00

05

90

oo

8.5 3,350

Discharge, in second- feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

182

189

198

200

188

196

206

211

221

275

217

215

213

211

213

421

221

215

215

219

217

204

211

211

?11

209

207

217

335

230

217

Nov.

249

215

219

219

217

215

215

213

211

211

209

211

213

211

219

215

211

213

215

213

213

211

211

211

211

211

209

209

209

144

Dec.

209

209

211

211

211

209

198

209

211

209

211

213

213

213

211

207

221

215

215

292

226

226

221

217

215

215

215

217

215

215

213

Jan.

223

872

345

451

732

588

1,500

526

363

306

280

263

251

245

240

236

234

230

228

223

223

221

223

221

221

219

215

219

219

219

219

Feb.

221

221

221

209

228

226

221

408

795

371

292

265

258

?49

517

348

296

284

270

258

254

260

251

243

240

238

238

256

243

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

243

238

234

232

232

230

230

236

234

228

226

223

243

324

292

614

432

342

340

296

282

435

3,350

1,320

709

503

420

395

366

332

309

Apr.

1

1

Secondfoot-days

6,895

6,355

6,693

72,240

10,755

8,381

14,087

18,378

9,029

5,464

2,186

4,535

5,857

98,613

296

539

570

,140

919

869

592

,O80

842

857

676

530

464

9.15

732

560

497

437

404

374

532

564

494

412

340

363

355

371

806

848

-

May

524

37

41

39

3

5

3

363

340

32

31

30

9

3

296

289

28

28

27

7

3

5

270

268

26

25

24

5

3

5

245

272

25

21

22

I

1

3

232

228

23

22

26

27

t>

}

268

Maximum

421

249

292

2,210

1,500

795

3,350

1,140

524

254

127

202

238

3,350

June

254

247

247

245

236

245

230

232

221

217

209

204

206

196

206

196

159

160

163

91

132

137

142

144

141

143

83

124

128

126

-

Minimum

182

144

198

40

215

209

223

296

217

83

33

49

165

33

July

127

105

64

62

66

74

38

33

49

49

46

50

44

46

46

112

60

49

106

115

115

100

52

50

46

48

97

97

94

96

50

Aug.

49

99

89

92

88

94

51

49

98

99

106

170

170

175

189

180

172

170

170

170

175

191

187

191

185

183

183

202

200

183

175

Sept.

167

165

170

167

180

187

172

168

168

187

187

185

194

167

175

191

236

238

219

215

215

213

213

213

215

215

207

215

215

198

-

 _,_ Runoff in Mean acre-feet

222 13,680

212 12,600

216 13,280

198 143,300

347 21,330

289 16,620

454 27,940

613 36,450

291 17,910

182 10,840

70.5 4,340

146 9,000

195 11,620

269 195,600

Peak discharge (base. 3,100 sec.-ft.).- Mar. 23 (3:30 p.m.) 4,980 sec.-ft.
RUSSIAN RIVER BASIN 405

Dry Creek near Cloverdale, Calif.

Location.- Water-stage recorder, lat. 38°45', long. 123"05', in sec. 4, T. 10 N., R. 11 

W . , 500 feet downstream from Smith Creek and 5 miles southwest of Cloverdale. Altitude of gage, about 320 feet (from topographic map).

Drainage area.- 88.3 square miles.

Records available.- November 1941 to September 1948.

Extremes.- Maximum discharge during year, 2,880 second-feet Jan. 7 (gage height, 6.71 

feet) ; minimum, 0.2 second-foot Oct. 1-7.

1941-48: Maximum discharge, 21,900 second-feet Jan. 21, 1943 (gage height, 16.65

fe - -

st 

1944

1311-yo: maximum aiscnarge, ai.yuu second-tees Jan. ai, iy^s (gage neignt, lo.os 

iet), from rating curve extended above 5,000 second-feet on basis of velocity-area 

;udies and logarithmic plotting; minimum, 0.1 second-foot Sept. 14-24, 30, Oct. 1-6, 

)44.

Flood of December 1937 reached a stage of about 18 feet (from floodmarks).

Remarks.- Records fair and at times during high water probably poor. No storage or 

diversion above station.

Revisions (water years).- W 1041: Drainage area.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

7

8

9

10

11

13

15

16

17

18

21

22

23

25

26

28

30

31

Oct.

0.2

.2

.2

.2

.2

.2

.3

.5

2.3

12

9.4

3.7

2.1

1.6

1.7

260

45

23

16

14

13

12

11

10

10

9.4

9.4

12

107

50

29

Nov.

54

45

29

25

21

16

16

15

14

13

12

12

12

12

18

16

14

12

12

11

10

10

10

10

10

10

10

9.4

9.4

9.4.

-

Dec.

9.4

9.4

9.4

8.8

8.8

8.8

8.3

8.3

8.3

8.3

3.3

8.3

8.3

7.8

7.8

7.8

13

12

12

276

88

54

37

29

25

22

20

18

16

16

15

Jan.

21

272

136

415

564

411

1,580

702

336

228

165

129

104

85

77

68

60

54

48

43

41

39

37

34

33

31

28

25

25

23

23

Feb.

23

23

22

31

34

29

23

29

204

90

63

50

47

43

105

85

68

65

65

54

50

50

48

43

39

37

36

63

43

_

-

Month

December. ..................................

Calendar year 1947 . . . .................

March. .....................................

April. .....................................

May. ........................................

September ..................................

Water year 1947-48 ......................

Mar.

39

34

33

31

31

31

29

31

33

28

28

34

45

58

77

215

161

116

107

85

75

108

1,440

974

552

375

296

292

301

241

200

Apr.

176

274

341

645

540

582

466

945

1,010

1,050

726

552

450

1,030

1,510

1,050

738

564

460

380

411

395

346

266

233

208

192

184

787

943

Secondfoot-days

477 2

789.1

20,245.2

24.8

38,635.5

May

606

472

390

328

271

233

204

180

153

132

120

113

102

93

90

35

82

77

75

75

72

65

58

56

52

50

50

50

56

77

72

Maximum

276

1,800

1.6

1,580

June

54

48

45

43

41

43

39

37

36

36

34

33

31

29

28

25

22

22

20

20

18

18

18

16

16

15

15

13

12

12

Minimum

7.8

.2

.6

.2

July

12

12

12

12

12

12

11

10

8.8

8.3

8.3

8.3

8.3

8.3

3.3

8.3

7.3

7.3

7.3

6.5

6. '5

6.5

6.5

6.5

6.1

6.1

5.3

5.3

5.3

4.6

4.6

Aug.

4.6

4.6

4.3

4.3

4.3

4.3

4.3

4.3

4.0

4.0

4.0

4.0

3.5

3.0

2.8

2.8

2.6

2.6

2.6

2.4

2.4

2.3

2.3

2.3

2.3

2.1

2.0

2.0

1.8

1.7

1.7

Mean

15 9

25.5

55.5

.83

106

Sept.

1.6

1.4

1.3

1.2

1.1

1.1

1.0

.9

.9

.8

.8

.7

.7

.7

.7

.7

.7

.7

'.7

.?

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

-

Runoff in 

acre-feet

1,570

40,160

49

76,640

Peak discharge (base, 5,000 see.-ft.).- No peak above baa 

889419 O - 50 - 27
406 RUSSIAN RIVER BASIN

Laguna de Santa Rosa near Graton, Calif.

Location.- Water-stage recorder, lat. 38°27', long. 122°50' , in sec. 14, T. 7 N. , R. 9 W. 

in Ho linos land grant, 0.2 mile downstream from Santa Rosa Creek and 2 miles northeast 

of Graton, Sonoma County. Datum of gage is 40.00 feet above mean sea level (Corps of 

Engineers, reference mark); gage readings have been reduced to elevations above mean sea 

level.

Records available.- February 1940 to September 1948.

Extremes.- Maximum contents during year, 7,530 acre-feet Mar. 24 (elevation, 56.9 feet); 

contents less than 500 acre-feet Oct. 1-9, 13-15, July 2 to Sept. 30.

1940-48: Maximum contents, 61,400 acre-feet Feb. 28, 1940 (elevation, 72.1 feet); 

contents less than 500 acre-feet and not computed for several months each year.

Remarks. 1- The laguna is a natural water channel and overflow basin connecting Santa Rosa 

CreeTt, Mark West Creek, and other smaller creeks with Russian River. During floods 

direction of flow may be either to or from Russian River and the laguna acts as a 

natural regulator of floods on lower Russian River. Contents shown are for 12 p.m. of 

date indicated.

Contents, In acre-1'eet, water year October 1947 to September 1948

Day Apr. Hay July Aug. Sept.

900

900

900

950

950

950

950

950

950

900

950

950

950

950

950

950

950

950

950

950

950

950

950

950

950

1,180

1,180

1,120

1,120

1,060

,000

950

950

950

950

950

950

950

950

950

950

950

950

950

950

950

950

950

950

900

850

850

800

800

600 

550. 

550 

550 

55CMonthly elevation and conten

Date

Calendar year 1947 ........

Aug 31

Sept .30. ....................

Water ear 1947 48

ts, water ye

Elevation 

(feet)

50 9

50 9

51 9

54 0

50.0

_

ar October 19

Contents 

(acre-feet)

500

_

47 to September 1948

Change in contents 

during month 

(acre-feet)

450

_

ntents less than s-feet Oct. 1-9, 13-15, July 2 to Sept.
EEL RIVER BASIN 407

Lake Pillsbury at Hullville, Calif.

Location.- Staff gage, lat . 39°?4', long. 122°57', on line between sees. 14 and 23, T. 18 

W . , H 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 192? to September 1948 (gage; heights only prior to October 

I92H) .

Extremes.- Maximum contents observed during year, 94,200 acre-feet May 31, June 1, 10, 11, 

IB (elevation, 1,910.2 feet)- minimum observed, 43,300 acre-feet Jan. 1 (elevation, 

1,^883.5 feet).

1922-48: Maximum contents, 95,600 acre-feet May :.3, 16, 1925 (elevation, 1,910.8 

feet): minimum, 10 acre-feet Dec. 9, 10, 1931 (elevation, 1,822.5 feet).

ver o an rsae eservor, rom wc s vere roug unne o oer alley 

powerhouse; part is then used for irrigation and remainder flows into East Fork Russian 

River. Records, based on gage readings usually made at 3 p.m., show contents available 

for release.

Cooperation.- Gage-height record, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Contents, In acre-feet, water year October 1917 to September 1948

Day Oot. Deo. Mar. Apr. May July Aug. Sept.

61,700

61,300

60,800

51,900

51,500

51,300

50,900

50,400

71,200

71,100

70,900

70,700

70,500

78,400

78,400

78,400

78,400

78,400

93,500

94,000

94,000

93,000

93,500

93,500

93,700

93,500

93,500

93,300

93,300

93,300

93,300

90,000

89,800

89,600

89,300

89,100

88,900

78,600

78,200

77,800

94,000

93,700

54,100

53,800

46,500

46,100

45,800

45,400

45,500

45,400

45,200

45,100

93,700

94,000

93,700

93,500

93,700

94,000

94,000

94,000

94,000

94,000

94,000

87,800

87,500

86,900

85,500

85,100

84,600

84,200

83,800

Interpolated.

Monthly elevation and contents, water year October 1947 to September 1948

Date

Calendar year 1947...

Aug. 31. ...............

Sept .30. ...............

Water year 1947-48 

Elevation 

(feet)

1,894.9 

1,893.8 

1,889.2 

1,883.6

-

1,909.9 

1,910.1 

1,910.2 

1,910.0

-

Contents 

(acre-feet)

62,200 

60,200 

52,200 

43,400

-

671,600 

678,200 

93,500 

94,300 

94,200 

93,700 

e90,300

e66,SOO

-

Change in contents 

during month 

(acre-feet)

-2,000 

-8,000 

-8,800

-12,600

+ 28,200 

+ 6,600 

+ 15,300 

+ 500 

+ 200 

-500 

-3,400 

-11,300 

-12,200

+ 4,600

e Contents Interpolated.
EEL RIVER BASIN

Eel River at Hullville, Calif.

Location.- Water-stage recorder, lat. 39°24', long. 122°58', in NE^- sec. 22, T. 18 N., B. 

10 W., 0.5 mile downstream from Scott Dam, 0.5 mile upstream from Soda Creek, and 0.5 

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 1948.

Average discharge.- 25 years (1923-48), 464 second-feet.

.Extremes.- Maximum discharge during year, 6,940 second-feet Apr. 15 (gage height, 11.15 

reet), from rating curve extended above 1,900 second-feet on aasis of computed flow 

over Scott Dam at various stages; minimum, 36 second-feet Mar. 19.

1922-48: Maximum discharge, 38,000 second-feet Dec. II, 1937 (gage height, 22.9 

feet, from floodmarks), from rating curve extended above 3,000 second-feet on basis of 

computed flow over Scott Dam; practically no flow at times.

Remarks.- Records good. Plow regulated by Lake Pillsbury (see preceding page). No diversion above station. Coo-- ' '

'peration.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1947-48 (gage height. In feet, 

and discharge, In second-feet)

2.6 39 4.4 478

2.8 61 4.7 594

3.0 89 5.0 716

3.2 124 5.5 950

3. .4 166 6.0 1,250

3.7 246 6.5 1,600

4.0 338 7.0 1,980

7.5 2,400

8.0 2,860

8.5 3,370

9.0 3,930

9.5 4,540

10.0 5,200

11.0 6,700

Discharge, in second-feet, water year October 1947 to September 194B

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

224

221

215

215

215

213

210

202

191

159

159

191

213

213

213

134

70

194

204

196

174

186

202

204

207

210

210

202

142

171

210

Nov.

210

207

196

186

196

202

204

210

216

207

202

204

213

215

210

207

199

024

204

204

210

213

213

213

213

215

213

210

194

151

Dec.

210

213

213

210

210

210

210

210

204

210

213

213

215

215

215

213

194

210

210

207

194

174

196

194

199

202

202

202

207

207

207

Jan.

186

108

49

89

89

86

3,240

3,890

1,930

1,180

818

638

516

435

372

325

288

258

235

210

188

176

168

174

176

159

181

184

184

186

181

Feb.

184

186

188

171

188

188

188

176

109

96

128

151

155

162

122

59

80

96

106

124

132

115

120

138

140

148

146

141

151

-

Month

October ....................................

November ...................................

December ....................................

Calendar year!947 ......................

January ....................................

February ............. r. ....................

March. .....................................

April ......................................

May.. ......................................

June .......................................

July... ....................................

August .....................................

September. .................................

Water year 1947-48 ... ..................

Mar.

164

164

164

166

166

171

174

166

174

174

171

174

174

140

136

101

61

77

42

76

96

98

86

619

1,830

1,280

986

1,500

1,380

1,220

1,080

Apr.

1

2

1

1

1

1

1

3

3

1

1

1

3

6

4

2

2

1

1

1

2

2

1

1

1

1

1

1

1

Secondfoot-days

5,970

6,'389

87,425

16,899

4,088

13,010

62,610

22,285

7,479 i-> 7-Z-Z

C , I OO

5,426

6,178

159,202

920

290

290

930

730

740

610

480

200

800

920

530

690

630

050

200

540

310

8.90

720

710

600

040

740

170

190

150

030

050

460

May

1,710

1,280

890

1,210

1,080

968

,1,150

1,090

935

682

630

630

578

508

512

666' 524

751

505

382

486

505

505

508

508

512

512

505

501

527

535

Maximum

224

215

215

5,240

3,890

188

1,830

6,050

1,710

524

142

218

213

6,050

June

524

501

486

464

438

438

379

273

202

267

328

316

300

249

224

186

134

157

138

142

146

146

140

136

126

110

113

138

138

140

-

Minimum

7C

151

174

53

49

59

42

92C

382

110

40

86

199

40

July

138

108

76

74

78

81

40

44

64

64

64

64

65

65

71

120

70

79

142

142

140

113

64

62

64

65

125

117

128

all8

a88

Aug.

a88

104

120

117

115

108

86

86

110

126

186

218

215

210

210

207

207

207

207

207

207

207

207

204

207

210

210

210

210

210

210

Sept.

210

210

207

204

204

204

207

207

207

210

210

210

210

210

213

213

204

199

199

204

2Q4

204

204

204

204

204

204

204

202

202

-

 , Runoff in "ean acre-feet

193 11,840

204 12,170

20C 12,670

240 173,400

545 33,520

141 8,110

420 25,800

2,087 124,200

719 44,200

249 14,830

88.2 5,420

175 10,760

206 12,250

435 315,800

No gage-height record; discharge computed on basis of record of flow through needle valv
EEL RIVER BASIN 409

Eel River at Van Arsdale Pam, near Potter Valley, Calif.

Location.- Water-stage recorder, lat. 39°23', long. 123°07' , in NE^ sec. 30, T. 18 N. , R. 

11 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 1948. November 1909 to September H'22

(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.- 25 years (1922-26, 1927-48), 527 second-feet, combined flow of Eel 

Hiver at van Arsdale Dam and Potter Valley powerhouse tailrace.

Extremes.- Maximum discharge during year, 7,080 second-feet Apr. 15 (gage height, 13.71 

feet); minimum, 0.2 second-foot Oct. 13.

1909-48: 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 Dec. 11, 1937; no flow 

Nov. 1, 1945.

Remarks . - Records good. Water is diverted from Van Arsdale Reservoir through tunnel to 

fetter Valley powerhouse, after which part is used for irrigation and remainder flows 

into East Fork Russian River. Records given herein represent flow passing dam down 

Eel River.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas 

ed in connection with a Federal Power Commission project.

Electric Co., obtainDischarge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Oct.

6.2

7.2

7.2

7.2

8.1

8.1

8.1

7.6

7.6

7.2

3.0

.5

2.9

2.7

5.0

156

15

2.4

5.8

6.2

10

6.2

5.8

5.8

6.2

7 .6

8.1

9.1

109

6.2

29

Nov.

60

51

26

11

8.6

9.1

9.5

10

12

11

9.1

5.0

4.0

8.6

17

15

10

8.1

6.2

5.8

4.8

6.2

8.6

9.1

8.6

10

11

11

11

9.5

-

Dec.

8.1

8.1

8.1

8.6

7-6

7.2

11

11

9.5

11

8.6

6.7

6.7

7.6

8.6

8.6

10

9.1

11

52

37

12

12

11

12

11

9.1

7.2

7.2

7.6 8. n

Jan.

20

515

122

240

785

548

3,680

4,300

2,110

1,250

840

596

426

016

236

181

138

102

73

5O

33

22

11

8.6

8.1

8.1

1.7

2.2

4.6

c . £

7.2

Feb.

5.8

5.0

4.6

8.8

4.3

4.6

4.6

8.2

63

11

7.2

2.7

4.6

5.8

163

25

11

7.6

4.3

3.3

4.6

8.1

5.3

4.3

5.8

5.8

5.8

3.3

5.3

_

-

Month

December ...................................

Calendar year 194? ......................

March. .....................................

May. .......................................

September. .................................

Water year 1947-48 ......................

Mar.

4.6

5.3

4.8

4.3

0.6

2.8

2.5

3.0

2.5

2.7

2.4

4.3

5.3

14

8.6

25

16

7.6

19

2.8

4.3

60

992

393

2,060

1,560

1,110

1,490

1,530

1,270

1,150

Apr.

948

1,310

2,270

2,230

2,030

2,010

1,790

1,730

3,33O

4,110

2,550

1,760

1,870

3,370

6,160

4,290

2,750

2,330

2,000

1,740

1,760

2,590

2,270

1,810

1,490

963

1.210

1,030

1,070

1,530

-

Secondfoot-days

353.3

42,735.5

81.1

118,643.4

May

1,840

1,530

950

1.150

1,110

956

1,060

1,030

879

606

500

495

453

352

349

359

448

596

398

200

297

316

335

306

306

3OO

310

329

313

352

366

Maximum

52

6,140

3.7

fi.160

June

339

313

294

271

250

238

20O

108

19

61

113

108

96

65

41

18

7.6

7.4

9.0

17

16

10

9.4

8.5

7.4

3.9

2.8

4.8

3.5

3.3

-

Minimum

6.7

.3

1.6

.5

July

2.8

3.3

3.9

4.4

3.0

1.6

5.6

5.1

5.8

6.8

7.1

6.8

6.8

6.8

6.4

5.8

4.8

5.1

5.1

5.8

5.8

6.4

6.1

5.5

4.8

4.4

2.2

3.5

3.9

5.1

6.1

Aug.

7.4

6.4

6.1

5 8

5.1

4.4

4.6

5.8

4.8

4.6

5.1

4.8

5.8

5.8

5.8

5.5

5.1

4.8

4.4

4.1

4.1

3.9

3.7

3.5

3.0

3.0

2.8

2.8

2.8

3.0

3.0

Mean

11.4

117

2.70

324

Sept.

3.0

3.3

3.5

3.7

3.5

3.3

3.0

2.8

2.6

2.6

2.8

2.8

2.8

2.8

3.3

3.3

2.8

3.3

2.8

2.6

2.5

2.3

2.2

2.2

2.0

1.8

2,0

2.0

1.9

1.6

-

Runoff in 

acre-feet

946

701

84,760

161

235,300
410 EEL RIVER BASIN

Eel River at Scotia, Calif.

Location.- Water-stage recorder, lat. 40°29', long. 124°06', in sec. 7, T. 1 N., R. IE., 

at bridge on U. S. Highway 101, 0.5 mile north of Scotia and 6 miles upstream from Van 

Duzen River. Datum of gage is 36.15 feet above mean sea level, datum of 1929.

Drainage area.- 3,070 square miles.

Records available.- December 1910 to February 1915, October 1916 to September 1948.

Average discharge.- 35 years (1911-14, 1916-48), 6,235 second-feet.

Extremes.- Maximum discharge during year, 114,000 second-feet Jan. 8 (gage height, 32.6 

i'eet); minimum, 37 second-feet Oct. 5.

1910-15, 1916-48: Maximum discharge, 345,000 second-feet Dec. 11, 1937 (gage height, 

55.1 feet); maximum stage observed, 55.5 feet Feb. 2, 1915; minimum discharge observed, 

10 second-feet Aug. 12-14,'1924.

Remarks.- Records good. Flow slightly regulated by Lake Pillsbury (see p. 407) and by 

diversion through Potter Valley powerhouse (see p. 411).

Revisions (water year).- W 931: 1938.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

47

50

54

57

50

79

87

94

155

266

380

545

947

632

694

13,300

16,400

5,310

2,880

2,070

2,800

4,270

3,280

2,270

1,720

1,340

1,130

980

1,890

9,180

6,120

Nov.

4,850

,520

,200

,620

,140

,610

,920

,460

,100

,820

,560

,390

,240

,160

,160

,240

,390

,430

,190

,080

992

914

860

810

770

751

732

704

675

650

-

Dec.

694

 694

675

675

641

607

598

607

598

575

560

552

545

530

538

538

790

1,220

1,430

2,990

4,340

4,560

4,120

3,360

2,700

2,290

1,960

1,870

1,980

1,940

1,780

Jan.

1,870

32,000

43,000

29,800

48,200

69,700

91,600

81,900

37,900

23,000

16,000

12,000

9,560

7,960

6,840

6,060

5,380

4,860

4,430

4,010

3,650

3,360

3,110

2,890

2,730

2,550

2,360

2,180

2,050

1,960

1,900

Feb.

1,860

1,760

1,700

1,680

1,700

1,700

1,640

1,850

7,520

10,800

7,340

5,140

4,190

3,670

4,230

13,900

9,590

7,650

7,590

6,500

5,770

7,900

12,700

9,460

7,560

6,470

5,700

5,670

5,550

_

-

Month

November . ................................ .

December. ..................................

Calendar year 1947 ......................

September . .................................

Water year 1947 -48 ......................

Peak discharge (base, 58,000 sec. -ft.).- J

Mar.

5,050

4,500

4,080

3,710

3,500

3,330

3,150

3,150

3,840

3,820

3,360

3,460

4,140

4,450

5,430

6,700

10,800

9,310

8,410

7,960

6,720

7,530

34,800

43,200

33 , 500

23,900

18,800

15,900

15,500

14,500

12,600

Apr.

11,300

10,700

13,400

19,800

28,800

31,000

24,200

20,200

30,400

43,300

38,200

27,500

21,000

20,800

37,700

38,600

28,800

22,900

18,700

16,200

15,800

24,400

28,400

22,900

18,400

16,000

13,300

12,700

12,300

19,300

-

Second 

foot-days

46,957

1,209,728

8,601

2,323,006

May

21,700

16,600

14,100

 12,500

12,000

11,300

10,900

11,000

9,560

8,400

7,610

7.090

7,020

6,680

6,180

5,860

6,290

6,630

6,060

5,500

5,230

4,860

4,590

4,610

4,750

4,770

4,540

4,860

6,600

7,590

7,740

Maximum

4,560

62,500

91

800

91,600

June

6,960

6,110

5,530

5,230

4,890

5,080

4,750

4,230

4,030

4,340

4,070

3,650

3,340

3,060

2,840

2,620

2,400

2,250

2,110

2,030

1,950

1,870

1,750

1,630

1,500

1,440

1,360

1,300

1,200

1,110

-

Minimum

530

47

213

137

47

July

1,040

980

930

900

890

890

900

890

854

809

776

744

720

705

682

660

638

600

570

563

563

535

507

494

480

474

454

442

435

429

411

Aug.

399

393

381

375

370

348

336

326

326

320

315

310

301

296

291

282

272

267

254

244

240

244

254

258

249

240

235

231

226

222

213

Mean

2 551

1,515

3,314

287

6,347

Sept.

208

186

182

182

182

182

178

174

167

163

148

148

144

144

137

152

240

375

468

800

705

549

454

405

375

326

296

310

320

301

-

Runoff in 

acre feet

93,140

2,399,000

502 100

17,060

4,608,000

an. 3 (1 a.m.) 63,600 -sec . -ft .; Jan. 8 (1 a.m.) 114,000
EEL RIVER BASIN 

Potter Valley powerhouse tailrace near Potter Valley, Calif.

411

Location,- Water-stage recorder and electrical output meters, lat. 39°21', long. 123°07i ,

 in fJW^ sec. 6, T. 17 N., R. 11 W., at powerhouse of Pacific Gas & Electric Co., 3 miles 

northwest of town of Potter Valley, altitude of gage, about 1,000 feet (from topographic map).

Records available.- October 1922 to September 1948. 

Average discharge.- 26 years, 190 second-feet.

Extremes.- Maximum daily discharge during year, 227 second-feet May 28; minimum daily, 

54 second-feet July 7.

1922-48: Maximum daily discharge, 321 second-feet Aug. 26, 1933; no flow at times 

in several years.

Remarks.- Records excellent except those obtained from powerhouse output, which are good.

 Water is diverted from Eel River above, Van Arsdale Dam; after passing through powerhouse, part of it is used for irrigation in Potter Valley and remainder flows Into 

East Fork Russian River. Water for irrigation diverted from tailrace is included in 

figures of discharge.

Cooperation.- Record of daily discharge Nov. 30, June 13 to Aug. 11, computed form power-

 house output, furnished by Pacific Gas & Electric Co., obtained in connection with a 

Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

1U

11

1213

14

Ib

16

17

18

19

W

21

22

23

24

25

26

27

28

29

30

31

Oct.

222

215

212

214

202

215

215

215

217

220

211

219

217

217

217

216

216

217

221

221

219

210

217

219

220

219

218

219

219

217

216

Nov.

214

206

218

218

218

218

218

218

218

218

220

219

221

219

219

219

218

218

219

219

220

219

219

220

219

219

219

217

217

122

-

Dec.

218

218

217

218

218

217

205

218

219

216

219

220

220

220

222

218

221

220

220

220

219

220

221

220

220

221

221

221

221

221

220

Jan.

219

218 215'

218

219

218

215

214

214

214

214

215

216

215

215

216

216

215

215

216

215

215

216

216

216

216

215

218

216

216

216

Feb.

219

219

221

2O5

221

220

219

220

219

219

219

218

220

219

219

218

218

218

219

219

218

219

219

219

220

219

220

212

221

_

-

Month

December ...................................

Calendar year 1947 ......................

May. .......................................

September. .................................

Water year 1947 48 .......................

Mar.

225

222

221

220

220

220

221

221

221

221

222

216

222

222

220

221

221

220

221

221

221

221

225

225

221

220

221

220

220

221

222

Apr.

224

222

222

213

218

221

221

220

220

219

218

219

218

218

218

218

2J.8

219

220

221

221

221

221

220

180

224

224

222

224

219

Second 

foot-days

6,789

64,161

5 719

6,527

74,245

May

195

152

221

224

224

220

220

220

219

218

219

219

218

218

218

218

217

219

219

218

219

221

188

225

220

223

226

227

225

222

221

Maxim im

;:22

224

2'23

227

June

222

221

222

222

213

224

222

222

222

220

220

220

220

220

222

221

167

167

158

101

161

165

163

167

167

172

101

161

167

167

Minimum

202

205

69

214

180

101

54

215

54

July

167

132

96

96

96

93

54

60

82

82

82

82

82

82

82

150

82

82

150

150

150

122

82

82

82

82

128

128

128

128

82

Aug.

82

128

134

128

128

128

82

82

128

128

147

226

223

226

226

223

222

223

223

220

221

221

219

222

217

218

219

219

219

219

218

Mean

217

215

219

176

216

218

221

219

217

191

102

184

218

203

Sept.

216

217

217

223

217

219

218

218

219

221

219

218

216

215

216

219

217

217

216

216

'217

219

218

218

216

215

216

218

218

218

-

Runoff in 

ao re feet

13,310

12,790

13,470

127,300

13,270

12,570

13,600

13,020

13,320

11,340

6,300

11,340

12,950

147,300
412 EEL RIVER BASIN

South Pork Eel River near Branscomb, Calif.

Location.- Water-stage recorder, lat. 39°43'30", long. 123°38 I 45", 3 miles downstream 

from Redwood Creek and 6 miles north of Branscomb.

Records available.- October 1946 to September 1948.

Extremes.- Maximum discharge during year, 4,200 second-feet Jan. 7 (gage height, 8.5 feet), 

from rating curve extended above 1,500 second-feet by logarithmic plotting; minimum, 

1.8 second-feet, Oct. 6, 7.

1946-48: Maximum discharge, that of Jan. 7, 1948; minimum, that of Oct. 6, 7, 1947.

Remarks.- Records good. No regulation or diversion.

Rating tables, water year 1947-48 

and discharge, in se<

1.0

1.1

1.2

1.3

28

38

50

79

116

191

282 

390 

550 

78C

(gage height, in feet,

:ond-feet)

1.0

1.1

1.2

1.3

1.5

1.6

4.1

7.5

12.5

20.5

43

56

Oct. 17

1.8

2.0

2.2

2.5

2.8

3.2

to Sept.

88

126

172

257

360

510

30

3.6

4.0

4.5

5.0

6.0

7.0

685

880

1,130

1,430

2,070

2,840

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.9

2.0

2.0

2.0

2.0

1.9

2.5

5.1

5.8

53

38

16

11

8.5

27

864

177

97

66

66

214

126

95

74

60

66

59

63

189

177

133

Nov.

231

206

162

139

116

97

83

71

64

56

52

47

43

41

52

48

42

39

37

35

33

32

30

29

28

28

27

26

24

24

-

Dec.

27

24

22

21

20

20

20

19

19

18

18

18

17

17

17

17

37

43

46

133

114

122

102

90

78

68

62

60

55

51

50

Jan.

99

1,530

686

1,030

1,360

1,730

2,770

1,360

830

474

339

260

206

172

150

133

120

108

99

90

83

76

71

68

65

60

58

55

53

51

50

Feb.

47

44

43

44

44

43

41

182

399

264

201

162

141

124

545

423

318

294

235

201

198

456

384

311

254

209

185

188

155

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1947 ......................

January ....................................

February ...................................

March ......................................

April. .....................................

May. .......................................

June .......................................

July .............. ........................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

137

124

112

104

99

92

86

90

88

78

73

85

101

112

112

184

a250

a200

a!90

a!75

alSO

a300

al,090

a 900

a750

526

420

353

300

251

215

Apr.

188

193

198

361

434

502

438

489

663

920

825

626

470

454

442

442

420

360

308

264

340

462

542

474

392

322

270

235

246

457

-

Secondfoot-days

2,704.7

1,942

1.425

28,402.4

14,236

6 , 135

7,747

12,737

3,822

1,772

593

268.6

265.5

53,647.8

May

350

300

260

226

195

172

158

144

128

116

108

102

97

90

83

88

93

83

78

73

71

68

64

60

58

56

58

78

104

128

133

Maximum

864

231

133

1,530

2,770

545

1,090

920

350

120

28

11

32

2,770

June July

120 1 28

110

102

97

92

90

80

74

71

68

66

64

58

55

52

50

48

46

44

43

42

39

37

36

35

33

32

30

29

29

-

Minimum

1.9

24

17

1.9

50

41

73

188

56

29

12

6.3

4.1

1.9

27

27

27

27

28

26

24

23

22

21

20

20

19

19

18

17

17

16

16

16

as

15

15

14

14

13

13

12

12

12

Aug.

11

11

11

10

10

10

9.7

9.7

9.7

9.7

9.7

9.2

8.7

8.7

8.7

8.3

8.3

8.3

8.3

8.3

7.9

7.9

8.3

8.3

7.9

7.5

7.0

6.6

6.3

6.3

6.3

Mean

87.2

64.7

46.0

77.8

459

212

250

425

123

59 !

19.1

8-66

8.8E

147

Sept.

6.3

6.0

6.0

6.0

6.0

5.6

5.6

5.3

5.0

4.7

4.7

4.4

4.4

4.1

4.1

6.0

32

30

17

12

10

9.7

10

11

9.7

8.7

8.3

7.9

7.5

7.5

-

Runoff in 

acre- feet

5,360

3,850

2,830

56,330

28,240

12,170

15,370

25,260

7,580

3,510

1,180

533

527

106,400
EEL RIVER BASIN 413

South Fork Eel River near Miranda, Calif.

Location.- rtater-stage recorder, lat. 40°12', long. 123°46', in NW£ sec. 30, T. 3 S., R. 

4 E., at Sylvandale camp grounds on U. S. Highway 101, 0.9 mile south of Rocky Glen 

Creek, 6 miles south of Miranda, and 20 miles upstream from mouth.

Drainage area.- 547 square miles.

Pecords available.- May 1940 to September 1948.

Extremes.- Maximum discharge during year, 35,700 second-feet Jan. 7 (gage height, 18.90 

feet); minimum, 19 second-feet Oct. 2, 3.

1940-48: Maximum discharge, 73,200 second-feet Dec. 27, 1945 (gage height, 27.73 

feet), from rating curve extended above 30,000 second-feet by logarithmic plotting; 

minimum observed, 9 second-feet Oct. 17, 1944.

Remarks.- Records good. Flow slightly regulated by Benbow Dam and powerhouse. No 

diversion.

Discharge, in second-feet, water year October 1947 to September 1948

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.

50

30

il

63

48

42

48

65

63

106

207

265

148

88

227

6,980

1,950

864

560

486

945

983

675

528

442

385

339

334

893

1,540

966

Nov.

1,210

1,630

1,160

958

856

690

586

522

469

420

390

366

344

330

339

362

348

316

298

281

269

257

245

238

231

228

220

217

210

210

-

Dec.

214

214

210

204

198

195

192

192

189

183

180

175

172

168

168

165

220

321

348

966

1,110

983

838

682

579

498

442

442

436

395

366

Jan.

678

16,400

8,620

10.3OO

13,8OO

23,300

30 , 500

16,000

8,310

5,410

3,880

3,000

2,470

2,110

1,850

1,650

1,500

1,370

1,260

1,150

1,080

1,020

966

915

881

830

790

750

712

690

668

Feb.

654

633

605

612

612

592

566

940

3,780

2,520

1,800

1,470

1,250

1,130

2,820

3,680

2,530

2,280

2,230

1,800

1,610

2,72O

3,180

2,420

2,050

1,740

1,560

1,610

1,430

_

-

Month

October. ...................................

November . ..................................

December. ..................................

Calendar year 1947 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

Mav way ........................................

June .......................................

July.... ...................................

August .....................................

September .................................

Water year 1947 -48 ......................

Mar.

1,250

1,140

1,050

992

940

906

856

872

932

856

790

932

1,120

1,250

1,290

1,920

2,720

2,030

1,960

1,730

1,520

3,060

11,800

9,840

7,670

5,640

4,340

3,560

3,220

2,670

2,270

Apr.

1,970

1,840

2,300

4,330

5,830

5,890

4,780

4,680

7,080

9,020

7,670

5,780

4,520

4,440

6,040

5,590

4,880

4,020

3,380

2,870

3,340

5,600

5,880

4,380

3,990

3,290

2,790

2,510

2,540

4,650

Secondfoot-days

20,351

14,200

11,645

278,371

162,860

50,834

81,126

136,380

40,160

16,571

6,579

3 294

2^710

546,710

May

3,730

3,OOO

2,600

2,360

2,060

1,820

1,700

1,660

1,420

1,280

1,170

1,100

1,080

990

93O

900

960

900

830

792

792

744

7OO

666

632

551

450

693

1,170

1,290

1,250

Maximum

6,980

1,630

1,110

18,200

30,500

3,780

11,800

9,020

3,730

1,130

280

142

229

30,500

June

1,130

980

890

810

772

772

708

657

666

648

610

580

551

523

502

488

462

450

436

424

418

40O

382

364

354

342

332

320

310

290

Minimum

30

210

165

 28

668

566

790

1,840

450

290

139

60

55

30

July

280

27O

260

26O

260

265

260

252

242

238

234

229

224

220

2 2O

216

204

200

204

212

196

176

172

180

176

172

165

161

150

139

142

Aug.

142

14?

139

135

122

118

122

122

122

115

114

111

108

108

108

102

94

91

91

94

97

100

100

94

94

94

94

94

86

80

60

Mean

656

473

376

763

5,254

1,753

2,617

4,546

1,295

552

212

106

90.3

1,494

Sept.

67

69

69

71

71

71

71

69

55

62

62

60

60

62

62

73

127

229

188

153

135

100

102

97

69

80

108

102

86

80

-

Runoff in 

acre feet

40,370

28 ,170

23,100

552,100

323,000

100,800

160,900

270,500

79,660

32 ,870

13,050

6,530

5,380

1,084,000

Peak discharge (base, 16,000 sec. -ft.).- Jan. 2 (3:30 p.m.) 23,700 sec. -ft.; Jan. 7 (3 p.m.)
EEL RIVER BASIN

Van Duzen River at Bridgeville, Calif.

Location.- Wire-weight gage, lat. 40°28>05", long. 123°47'55", in NW£ sec. 13, T. 1 N., R. 

3 E., at highway bridge at Bridgeville, i mile downstream from Little Larrabee Creek. 

Datum of gage is 590.66 feet above mean sea level, datum of 1929.

Drainage area.- 200 square miles.

Records available.- September 1911 to August 1913, December 1939 to September 1948.

Extremes.- Maximum discharge during year, 16,100 second-fe^t Jan. 7 (gage height, 21.9 

feet from peak-stage indicator); minimum observed, 9.0 second-feet Oct. 1-3.

1939-48: Maximum discharge, 21,600 second-feet Jan. 21, 1943 (gage-height, 25.5 

feet, from floodmarks), from rating curve extended above 12,000 second-feet by logarithmic plotting; minimum observed, 6.0 second-feet Sept. 12-17, Oct. 3, 7, 1945, Aug. 23, 

24, 1946.

Remarks.- Records fair. Wire-weight gage read twice daily, with additional readings in 

periods of high water. No storage or large diversion.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge In second-feet)

Oct. 1 to Jan. 7 Jan. 8 to Sept. 30

3.0 10 3.6 46 5.0 31O 2.6 15 4.4 192 8.0 1,840

3.1 13 3.8 69 5.5 49O 2.7 18 4.7 258 10.

3.2 17 4.1 110 6.0 720 3.O 3o 5.0 345 12.

3.4 29 4.5 180 6.5 970 3.2 41 5.5 525 14.

0 3,140

0 4,630

0 6,380

n a ARA

Mote.- Same as following table above 3 ; 8 IOQ e!s 970 is!o lo^SoO

6.5 feet. 4>1 142 ? _ 2 i^BO 20.0 13^400

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

17' 16

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.0

9.0

9.0

9.2

9.2

9. '2

10

12

18

104

180

76

45

34

169

3,980

941

358

214

730

1,410

553

375

274

202

164

146

149

975

1,060

512

Nov.

1,030

1,860

990

535

558

426

347

298

262

228

212

172

162

156

265

280

216

193

160

147

140

129

120

113

106

102

96

92

90

86

- -

Dec.

116

107

97

104

96

93

93

123

116

107

116

116

110

132

132

121

444

470

450

795

625

745

535

403

334

304

256

396

400

322

304

Jan.

658

7,560

3,700

9,100

6,880

11,600

12,800

5,420

2,940

1,860

1,300

l,02p

821

722

623

517

478

450

429

394

359

332

300

285

268

244

230

221

204

194

188

Feb.

185

176

168

178

174

166

156

282

485

415

300

258

244

221

1,200

875

628

695

672

525

1,O9O

3,210

1,860

1,210

920

758

632

695

605

_

-

Month

October. ...................................

November ............................ ......

December. ...................................

Calendar year 1947 ......................

January .....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July .......................................

August .....................................

September ..................................

Water year 1947 -48 ......................

Mar.

525

485

429

404

408

380

359

505

628

485

429

450

505

585

525

785

830

785

808

852

605

2,510

3,210

2,420

1,740

1,610

1,430

1,440

1,720

1,600

1,380

Apr.

1,160

1,180

1,320

1,660

1,860

1,620

1,420

1,900

3,560

3,280

2,540

2,090

1,860

4,190

6,73O

4,550

3,380

2,640

2,190

1,860

2,840

3,840

3,660

2,540

1,990

1,610

1,260

1,250

1,120

1,400

May

,370

,200

,210

,380

,190

,130

,220

1,270

1,060

940

816

794

785

668

623

641

830

659

581

549

533

493

513

525

521

493

525

915

1,61'C1,420

1,020

ffoTSays «» 

12,745.6 3,980

9,571 1,860

8,562 795

151,522.8 8,890

72,097 12,8OO

18 , 983 ' 3,210

30,827 3,210

72,500 6,730

27,534 1,660

11,483 830

859 36

916 78

268,285.6 12.8OO

June

830

736

668

585

557

704

557

493

545

525

489

154

122

376

345

325

309

282

258

258

251

225

204

188

176

161

148

144

138

130

Minimum

9.C

86

93

8.5

188

156

359

1,120

493

130

37

20

16

9.0

July

121

113

108

105

114

116

108

93" 99

82

78

74

70

67

64

59

57

55

53

52

50

48

47

45

44

42

41

40

39

37

Aug.

Mean

411

319

276

415

2

655

994

2,417

888

383

71.2

27.7

30.5

733

36

3434'

33

33

32

32

31

30

30

30

29

28

27

26

26

25

25

25

25

25

25

28

28

26

29

24

24

22

21

20

Sept.

20

20

20

19

19

19

19

18

17

16

16

16

IS

16

24

71

78

57

42

36

33

37

52

47

40

36

33

32

30

Runoff in 

acre-feet

25,280

18,980

16,980

300,500

143,000

37,650

61,140

143,800

54,610

22,780

4,380

1,700

1,820

532,100
KUMATH RIVER BASIN 415

Wllliamson 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

 K., a quarter of a mile downstream from Sprague River and three-quarters of a mile 

southwest of Chiloquin. Datum of gage is 4,155.55 feet above mean sea level, datum 

of 1929.

Drainage area.- 3,000 square miles.

Records available.- June 1917 to September 1948.

Average discharge.- 31 years? 859 second-feet.

Extremes.- Maximum discharge during year, 2,310 second-feet May 24 (gage height, 4.15

 feet); minimum, 458 second-feet July 29, 30.

1917-48: Maximum discharge, 7,660 second-feet Apr. 1, 1943 (gage height, 7.29 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. 

Revision (water year).- w 981: 1938(H).

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, in second-feet)

2.2 470 3.2 1,190 

2.4 570 3.4 l',38O 

2.6 705 3.6 1,600 

2.8 855 3.9 1,970 

3.0 1,020 4.2 2,380

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

526 

537 

542 

532 

526

526 

532 

526 

554 

583

5S4 

559 

570 

570 

583

583 

590 

649 

622 

616

590 

576 576' 

583 

576

570 

576 

590 

602 

596 

602

Nov.

609 

602 

596 

602 

602

596 

590 

596 

590 

590

596 

590 

602 

609 

609

609 

602 

602 

609 

609

602 

596 

590 

590 

590

642 

616 

602 

602 

602

Dec.

609 

609 

616 

616 

609

602 

609 

602 

596 

583

590 

590 

559 

609 

616

602 

609 

609 

609

609

616 

609 

602 

602 

602

602 

602 

609 

609 

609 

583

Jan.

649 

628 

622 

684 

684

780 

983 

975 

1,090 

1,310

1,460 

1,360 

1,070 

879 

765

705 

691 

684 

684 

691

684 

677 

684

677 

677

677 

609 

609 

622 

663 

663

Feb.

663 

649 

609 

628 

628

590 

583 

635 

635 

576

576 

590 

609 

635 

649

635 

642 

649 

649

656

735 

818 

758 

802 

911

887 

802 

788 

788

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

tfuly 

Augu 

Sept

Wa

her. ...................................

mber. ...................................

lendar year 1947 

ary

h. .....................................

ember ..................................

ter year 1947-48 ......................

Mar.

802 

802 

788 

788 

788

780 

788 

795 

788 

788

780 

772 

765 

765 

765

765 

780 

772 

765 

765

758 

750 

772 

795 

832

855 

863 

887 

895 

959 

1,140

Apr.

1,

1, 

1 

1 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot-days

17,727 

18,042 

18,698

' 239,178

24,636 

19,775 

25,107 

38,070 

47,260 

44,820 

17,782 

15,777 

15,911

303,605

Peak discharge (base, 1,400 sec. -ft.).- Jan. 11 (e tn

320 

420 

460 

460 

390

240 

090 

020 

020 

020

991 

999 

080 

120 

110

170 

310 

420 

470 

470

450 

450 

420 

410 

400

390 

330 

270 

230 

140

May

1,200 

1,190 

1,160 

1,160 

1,110

1,100 

1,140 

1,150 

1,170 

1,220

1,280 

1,300 

1,280 

1,260 

1,250

1,260 

1,310 

1,310 

1,410 

1,500

1,730 

2,000 

2,170 

2,280 

2,230

2,130 

1,980 

1,920 

1,960 

2,000 

2,100

Maximum

649 

642 

616

1,450

1,460 

911 

1,140 

1,470 

2,280 

2,300 

705 

520 

649

2,300

June

2,240 

2,300 

2,240 

2,140 

2,040

1,940 

1,830 

1,770 

1,770 

1,780

1,820 

1,820 

1,760 

1,700 

1,640

1,570 

1,470 

1,360 

1,240 

1,140

1,080 

975 

975 

999 

983

951 

895 

832 

795 

765

Minimum

526 

590 

559

466

609 

S76 

750 

991 

1,100 

765 

466 

497 

497

466

July

705 

635 

663 

677 

684

649 

602 

602 

602 

622

616 

596 

S83 

570

564

559 

554 

559 

548 

548

537 

537 

532 

532 

515

515 

510 

542 

466 

466 

482

Aug.

510 

510 

520 

515 

515

510 

510 

515 

520 

515

502 

502 

502 

506 

506

506 

497 

497 

515 

510

510 

510 

506 

506 

506

510 

510 

510 

510 

510 

506

Mean

572 

601 

603

655

795 

682 

810 

1,269 

1,525 

1,494 

574 

509 

530

830

Sept.

510 

506 

510 

506 

502

497 

497 

502 

506 

502

502 

497 

502 

497 

502

506 

515 

520 

520 

526

554 

649 

628 

576 

559

564 

564 

564 

564 

564

Runoff in 

acre feet

35,160 

35,790 

37,090

474,400

48,860 

39,220 

49,800 

75,510 

93,740 

88,900 

35,270 

31,290 

31,560

602.200

7 p.m.) 1,480 sec. -ft.; May 24 (-2 a.m.)
KLAMATH RIVER BASIN

Location.- Water-stage recorder, lat. 42°15', long. 121°48', in SW£ sec. 19, T. 38 S R 

 9 E.. 1 mile upstream from outlet of Upper Klamath Lake and 3 miles northwest of Klamath 

Falls Datum of gage is 4,098.39 feet above mean sea level, datum of 1929, or 4,10U.uu 

feet above datum of Bureau of Reclamation. Gage readings have been reduced to elevations above Bureau of Reclamation datum.

May 1904 to Peptember 1948.

Maximum elevation, 4,144.98 feet about Apr. 20, 1904, from high-water

minimum recorded, 4,135.55 feet Oct. 30, 1944

Remarks.- Reservoir is formed by c'oncrete dam at outlft of natural lake, completed in 1921, 

 replacing a temporary dam built in 1919: storage began Apr. 15, 1919. Capacity, 584,000 

acre-feet between elevations 4,135.0 and 4.143.3 feet. Dead storage below elevation 

4,135 feet not known: lake level ordinarily maintained between elevations 4,137 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 project of Bureau of Reclamation, or 

released to Link River through dam or power plants at Klamath Falls. Area of lake at 

hiph stapes is partly controlled by diking. Lake elevations, particularly extremes, 

are very"much affected by wind, "ontents given herein represent those above elevation 

4,135 feet.

Cooperation.- Capacity table and water-stage recorder inspections furnished by The CaliI'ornla Oregon Power Co .

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

38.34

38.25

38.25

38.28

38.34

38.14

37.82

37.86

37.70

38.06

38.26

38.34

38.18

37.93

37.53

38.07

37.95

38.07

38.06

38.11

38.25

38.17

38.16

38.21

38.19

38.17

38.10

38.06

37.99

38.14

37.69

Nov.

38.17

38.34

38.23

38.38

58.39

38.32

38.23

38.35

38.36

38.28

38.47

38.24

38.19

38.03

38.23

38.26

38.29

38.38

38.37

38.34

38.33

38.31

38.28

38.29

38.29

38.30

38.36

38.41

38.41

38.33

-

Dec.

38.51

38.44

h38.32

-

-

38.37

38.35

38.41

38.46

38.29

38.35

38.38

38.34

38.38

38.38

38.37

38.35

38.33

38.35

38.37

38.45

38.55

38.55

38.58

38.61

38.64

38.63

38.72

38.79

38.74

38.72

Jan.

38.68

38.79

38.84

38.93

38.94

38.89

39.09

39.24

39.30

39.33

39.38

39.45

39.47

39.50

39.52

39.54

39.55

39.57

39.58

39.59

39.60

39.60

39.62

39.63

39.69

39.68

39.65

39.64

39.64

39.64

39.65

Feb.

39.66

39.66

39.63

39.63

39.65

39.65

39.63

39.61

39.64

39.66

39.64

39.64

39.63

39.63

39.65

39.63

39.64

39.64

39.64

39.62

39.63

40.05

40.06

39.88

39.86

40.09

39.89

40.15

40.08

_

-

Mar.

40.10

40.18

40.13

40.11

 40.11

40.18

40.27

40.22

40.49

40.28

40.21

39.93

40.24

40.37

40.29

40.27

40.46

40.47

40.61

40.48

40.37

40.49

40.54

40.65

40.69

40.76

40.82

40.81

40.91

41.10

40.97

Apr.

40.88

40.89

40.97

40.84

41.10

41.19

41.19

41.09

41.27

41.33

41.55

41.41

41. 12

40.97

41.24

41.43

41.62

41.68

41.73

41.73

41.38

41.75

41.92

41.80

42.11

42.03

41.92

41.83

41.76

42.04

-

May

42.12

42.08

42.06,

42.20

42.20

42.36

42.34

42. ?2

42.36

42.37

42.36

42.16

42.45

42.40

42.30

42.15

42.51

42.77

42.52

42.46

42.61

42.50

42.56

42.61

42.66

42.57

42.46

42.57

42.61

42.67

42.74

June

42.77

42.84

42.85

43.06

42.87

42.82

42.87

42.7-S

42.80

42.77

42.76

42.71

42.78

42.79

42.78

42.80

42.80

43.00

42.75

42.82

42.87

42.73

42.70

42.75

42.72

42.70

42.63

42.56

42.53

42.52

-

July

42.56

42.54

42.43

42.38

42.20

42.30

42.32

42.33

42.31

42.27

42.31

42.26

42.20

42.17

42.12

i2.07

i2.04

42.04

41.98

41.91

41.87

41.77

41.78

41.75

41.70

41.65

41.77

41.54

41.49

41.44

41.36

Aug.

41.37

41.36

41.32

41.34

41.28

41.18

41.15

41.08

41.04

41.04

41.05

41.03

40.97

40.87

40.85

40.77

40.63

40.81

40.72

40.73

40.64

40.61

40.61

40.60

40.58

40.59

40.50

40.46

40.46

40.50

40.44

Sept.

40.35

40.37

40.44

40.46

40.36

40.34

40.27

40.23

40.19

40.12

40.08

40.06

39.96

39.98

39.97

39.86

39.76

39.86

39.87

39.36

39.88

39.84

39.75

39.94

40.02

39.73

39.81

39.86

39.87

39.88

-

h Staff-gage reading.

Note.- Add 4,100 feet to obtain ele above mean sea level, Bureau of Reolamatlc

Monthly elevation a- ntents, water year October 1947 to September 1946

Date

Calendar year 1947....

Feb. 29. .............. .

May 31 .................

June 30. .............

Sept. 30. ............

Water year 1947-48....

Elevation 

(feet)

-

4 142 75

-

Contents 

(acre-feet)

-

-

Change in contents 

during month 

(acre-feet)

+8,600

+86,000
KLAMATH RIVER BASIN 417 

Link River at Klamath Falls, Oreg.

Location.- Water-stage recorder, lat. 42°13', long. 121°48', in NW^ 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, datum of 1929, or 4,085.50 feet above datum of Bureau of Reclamation.

Drainage area.- 3,812 square miles (including Crater Lake Basin).

Records available.- May 1904 to September 1948.

Average discharge.- 44 years, 1,525 second-feet (including Keno Canal).

Extremes . - Maximum combined discharge O f Link River and Keno Canal during year, 2,410 

second-feet June 18; minimum, 25 second-feet Apr. 8, 14.

1904-48: Maximum discharge, 9,400 second-feet May 12, 1904 (gage height at bridge, 

7.30 feet); minimum, 12 second-feet Mar. 22, 1945; minimum daily, 17 second-feet Dec. 

13, 1937.

Remarks.- Records good. Regulation since April 1919 by Upper Klamath Lake. Water diverted above station by main or "A" Canal of Klamath project and Keno Canal (see pp. 

424, 425). Other small diversions above lake. Records of discharge include flow of 

Keno Canal.

Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IT

18

19

20

21

22

23

24

25

26

2T

28

29

30

31

Oct.

1,410

1,400

1,430

1,430

1,430

1,440

1,410

1,420

1,370

1,420

1,430

1.43CT

1,420

1,420

1,330

1,420

1,390

1,400

1,400

1,410

1,400

1,400

1,400

1,400

1,400

1,380

1,390

1,380

1,380

1,320

1,300

NOT.

,310

,290

,380

,380

,380

,380

,360

 1,370

1,370

1,360

1,370

1.36P

1,360

1,320

1,050

1,360

1,250

1,140

1,360

1,360

1,190

1,270

1,100

1,250

l.OflO

1,090

1,060

1,030

679

906

-

Dec.

1,360

1,360

1,350

1,350

1,350

1,340

1,330

1,350

1,370

1,340

1,340

1,350

1,350

1,250

1,200

1,090

993

796

635

615

566

755

610

528

578

4E6

496

663

813

892

865

Month

October. ............

November. ...........

Becerrfber. ...........

Calendar year 1947

January. ............

February. ...........

March. ...............

April ...............

May. ................

June ................

July. ...............

August. .............

September. ..........

Water year 1947-48

Jan.

734

634

783

614

813

875

422

501

503

600

929

1,060

1,080

1,000

1,000

1,100

1,230

970

1,060

1,300

1,020

1,030

1,020

966

924

1,100

1,370

1,380

1,380

1,190

1,220

Feb.

,100

,380

,380

,380

,380

,490

,610

,380

,380

,520

,610

,610

,470

,390

,490

,400

,400

,410

,410

,290

1,250

934

1,140

1,090

947

703

745

487

434

-

-

Mar.

707

824

1,060

1,250

1,090

688

399

588

589

580

583

573

524

256

661

578

586

543

445

444

313

211

37

36

30

28

30

30

30

31

30

Apr.

30

30

30

28

30

31

31

30

31

184

468

1,100

118

114

206

269

254

310

410

362

358

382

356

431

334

448

360

214

164

170

-

Hay

176

171

190

226

236

220

446

446

413

389

314

222

272

316

300

220

231

616

631

528

699

640

74S

1,340

1,430

1,410

1,410

1,420

1,420

1,430

1,430

River including Keno Canal

Maximum

1,440

1,380

1,370

1,870

1,380

1,610

1,250

1,100

1,430

2,350

1,520

1,400

1,380

2,350

Minimum

1,300

679

426

331

422

434

28

28

171

1,190

96

1,150

1,130

28

Mean

1,399

1,239

1,010

900

962

1,249

444

243

643

1,691

1,303

1,264

1,286

1,059

Runoff in 

acre-feet

86,000

73,720

62,100

651,880

59,120

71,820

27,320

14,440

39,550

100,600

80,150

77^710

75,500

769,030

June

1,430

1,410

1,420

1,420

1,410

1,420

1,410

1,410

1,420

1,600

2,190

2,350

2,350

2,350

2,330

2,110

1,850

2,050

2,330

2,290

1,980

1,490

1,350

1,360

1,360

1,370

1,270

1,400

1,190

1,420

-

"A" canal

(runoff in 

acre -feet)

5,510

0

0

218,590

0

0

0

1,580

16,270

31,980

55,360

39,960

21,890

172,550

July

1,380

1,410

1,270

961

96

1,430

1,520

1,420

1,380

1,380

1,410

1,410

1.4EO

1,420

1,42O

1,420

1,420

1,070

1,410

1,270

1,230

1.130

1,300 i.rso

l,28t>

1,390

1,390

1,380

1,400

1,400

1,410

Aug.

1,240

1,230

1,200

1,280

1,380

1,240

1,220

1,280

1,240

1,180

1,170

1,210

1,280

1,250

1,240

1,240

1,250

1,400

1,380

1,380

1,290

1,170

1,290

1,380

1,280

1,230

1,150

1,210

1,250

1,270

1,370

Sept.

1,380

1,370

1,370

1,370

1,270

1,240

1,240

1,200

1,230

1,370

1,260

1,280

1,380

1,250

1,370

1,360

1,350

1,320

1,230

1,270

1,250

1,200

1,130

1,230

1,180

1,130

1,310

1,350

1,340

1,340

-

River including Keno

and "A" canals

Runoff in acre-feet Mean

91,510 1,488

73,720 1,239

62,100 1,010

870,470 1,202

59,120 962

71,820 1,249

27,320 444

16,020 269

55,820 908

132,580 2,228

135,510 2,204

117,670 1,914

98,390 1,653

941,580 1,297
KLAMATH RIVER BASIN

Klamath River at Keno, Oreg.

Drainage area.- 3,920 square miles, not including Lost River or Lower Klamath Lake Basins. 

Records available.- June 1904 to December 1913, January 1930 to September 1948. 

Average discharge.- 27 years, 1,511 second-feet.

Extremes.- Maximum discharge during year, 2,700 second-feet June 20 (gage height, 6.90 

feet); minimum, 104 second-feet Jan. 7, 8 (gage height, 2.03 feet).

1904-13, 1930-48: Maximum discharge, 6,830 second-feet May 1-6, 1938 (gage height, 

10.10 feet); minimum, 35 second-feet Aug. 4, 1934; minimum daily, 60 second-feet May 19, 

1934.

Remarks.- Records excellent. Diversions above station for irrigation. Lost River diversion canal enters or diverts from Klainath River above station. (See records for Lost 

River diversion canal near Olene and diversion from Klamath River to Lost River near 

Olene.) Diversions through Midland Canal beginning July 1, 1947, to Klamath Drainage 

District and through Klamath Strait into Lower Klamath Lake were computed by U. S. 

Bureau of Reclamation from gate openings at Midland and Ady. Pumpage into Klamath 

River at Ady was computed by Bureau of Reclamation from hours of pump operation. Flow 

regulated by dam at outlet of Upper Klamath Lake since 1919 and by low dam on Klamath 

River at Keno since September 193] .

Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

,450 

,410 

,400 

,400 

,410

,410 

,42o 

,460 

,450 

,450

,460 

,470 

,470 

,470 

,460

,480 

,500 

,500 

,510 

,500

,520 

,530 

,530 

,580 

,550

,550 

,560 

,560 

,560 

,560 

,540

Nov.

,340 

,380 

,550 

,550 

,550

,550 

,550 

,480 

,460 

,460

,480 

,500 

,500 

,390 

,240

,430 

,490 

,460 

,480 

,490

,500 

,410 

,42O 

,430 

,330

,330 

,330 

,090 

885 

1,310

Dec.

,69O 

,700 

,620 

,600 

,530

,370 

,270 

,230 

,190 

,190

1,190 

1,100 

934 

870 

870

870 

880 

835 

805 

805

790 

790 

790 

664 

569

532 

473 

587 

664 

672 

686

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Anri

June

July 

Augu 

Sept

lendar year 1947..

Water year 1947-48..

Se 

foo

Jan.

70C

7oe

60C 

445 

482

69C 

332 

296 

48C 

682

84C 

84C 

895 

623 

628

632 

646 

628 

623 

646

672 

628 

628 

574 

548

654 

1,030 

1,080 

978 

967 

840

sondt-days

46,120 

42,365 

30,766

332,818

20,817 

30,839 

18,726 

9,368 

25,972 

56,420 

39,281 

45,490 

49,130

415,294

Feb.

825 

,06O 

,190 

,24O 

,230

,280 

,440 

,180 

,170 

,180

,210 

,240 

,270 

,330 

,370

,280 

,210 

,130 

978 

940

934 

750 

815 

825 

830

825 

820 

713 

574

Mar.

695 

785 

1,270 

1,470 

1,120

614 

646 

82O 

755 

713

713 

646 

574 

704 

695

864 

668 

632

610 

610

618 

444 

195 

195 

212

238 

241 

244 

274 

313 

350

Apr.

414 

448 

476 

456

466

492 

442 

354 

740 

1,140

4OO 

244 

212 

190 

166

174 

174 

174 

179 

174

164 

164 

166 

168 

168

220 

238 

174 

179 

212

Discharge in second-feet

Maximum

,580 

,650 

,700

,080

,080 

,440 

,470 

,140 

,820 

,S80 

,390 

,580 

,800

2,680

Minimum

1,4OO 

885 

473

153

298 

574 

193 

164 

271 

1,220 

780 

1,350 

1,360

164

Mean

1,488 

1,412

992

912

672 

1,063 

604 

312 

838 

1,881 

1,267 

1,467 

1,638

1,135

May

271 

271 

286 

358 

378

378 

438 

587 

592 

473

392 

389 

382 

386

389

386 

396 

565 

845 

880

94O 

,000 

,190 

,750 

,820

,810 

,750 

,710 

,670 

1,660 

 1,630

Runoff

acre-f

June

1,64O 

1,660 

1,7OO 

1,700 

1,700

1,680 

1,680 

1,680 

1,670 

1,710

2,230 

2,450 

2,450 

2,460 

2,430

2,180 

1,860 

2,050 

2,580 

2,680

2,480 

1,920 

1,750 

1,750 

1,580

1,400 

1,400 

1,390 

1,340 

1,220

in 

jet

91,480 

84,030 

61,020

660,100

41,290 

61,170 

37,140 

18,580 

51,510 

111,900 

77,910 

90,230 

97,450

823,700

July

,130 

,140 

923 

780 

918

,03O 

,110 

,260 

,340 

;4

,330 

,330 

,330 

,330 

,320

,330 

,360 

,320 

,360 

,350

,350 

,340 

,360 

,330 

,330

,360 

,360 

,370 

,370 

1,380 

1,390

Aug.

,380 

,38O 

,360 

,350 

,380

,400 

,4OO 

,430 

,460 

,460

,430 

,430 

,430 

,430 

,450

,490 

,480 

,460 

,470 

,480

,480 

,460 

,520 

,650 

,680

,550 

,480 

,480 

,480 

1,530 

1,630

Diversion 

(acre-feet)t

865 

O 

11,300

50,350

21,980 

18,080 

1,590 

714 

1,640 

1,850 

2,780 

1,880 

1,020

63,700

Sept.

,63O 

,630 

,590 

,530 

,770

,360 

,570 

,620 

,630 

,630

,830 

,610 

,610 

,580 

,600'

,600 

,610 

,660 

,660 

,670

,670 

,650 

,620 

,600 

,560

,700 

,8OO 

,780 

1,780 

1,780

Pumpage 

at Ady 

(acre-feet)

331 

2,400

3,840

53,140

2,210 

8,480 

12,060 

11,830 

8,120 

7,55O 

8,880 

6,450 

5,470

77,620

t Includes diversion to Midland canal and diversion at Ady to Klamath Strait.
KLAMATH RIVER BASIN 419

Klamath River below Fall Creek, near Copco, Calif.

Location.- Water-stage recorder, lat. 41°58', long. 122°22', in NE-jj see. 36, T. 48 N., 

K. 5 W., 500 feet downstream from Fall Creek, half a mile downstream from Copeo No. 2 

plant of The California Oregon Power Co., and 1 mile south of Copeo post office. Altitude of .gage,-2,310 feet (from river-profile map).

Drainage area.- 4,370 square miles.

Records available.- October 1928 to September 1948. October 1923 to September 1928 at 

site above Fall '^reek.

Average discharge.- 25 years, 1,488 second-feet (including Fall Creek).

Extremes. -' Maximum discharge during year, 4,770 second-feet May 24 (gage height, 5.46 

 i'eet); minimum, 147 second-feet Sept. 26 (gage height, 1.33 feet); minimum daily, 281

second-feet Mar. 7, Apr. 4, 17.

1923-48: Maximum discharge, 9,660 second-feet Apr. 27, May 3, 1938 (gage height,

7.39 feet); minimum, about 10 second-feet above Fall Creek several times in 1925, 1926;

minimum daily, 83 second-feet at present site Aug. 2, 1931.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Diversion and regulation above station.

Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power ~

Discharge, in second-feet, water year October 1947 to September 1946

Day

1

6

11

16

21

26

Oct.

1,810

1,780

1,780

1,840

230

1,850

1,760

1,840

1,830

1,780

1,730

848

1,800

1,770

1,800

1,930

1,990

1,770

305

1,990

1,990

1,960

1,750

312

1,950

1,970

2,080

Nov.

1,970

295

1.8OO

1,810

2,010

2,140

1,950

1,630

320

1,870

1,450

2,000

2,020

2,040

1,850

30O

1,810

1,860

1,870

al,840

a2 , 000

al,810

a320

al,930

al,890

al,890

294

1,860

1,820

605

-

Dec.

1,650

1,680

1,840

1,920

1,880

1,860

572

1,580

1,470

1,460

1,400

1,280

978

450

1,380

1,330

1,210

1,220

1,230

761

860-

al,290

al,150

a86O

a290

al,140

al,270

a31O

al,190

al,200

1,310

Jan.

344

976

1,160

872

1,180

1,360

2,210

1,280

1,220

996

319

1,070

1,070

1,130

1,100

1,070

742

. 324

1,100

1,040

1,020

956

874

856

394

,080

,610

,620

a ,390

a ,310

634

Feb.

422

1,480

1,670

1,740

1,710

1,680

778

699

1,680

1,530

1,650

1,580

1,540

824

693

1,610

1,640

1,420

1,450

1,450

1,010

852

1,330

1,330

1.260

1,270

1,350

513

307

-

-

Month

December. ...................................

Calendar year 1947 ......................

Maroh. .....................................

May........................................

September ..................................

Water year 1947-48 ......................

Mar.

1,260

1,580

1,500

1,520

1,420

506

281

1,230

1,130

1,140

1,040

1,230

430

448

1,040

1,210

1,020

1,220

1,220

290

285

1,210

569

744

1,020

618

295

406

840

841

1,050

Apr.

944

1,010

922

281

968

1,020

1,020

1,180

818

1,120

378

628

910

744

740

484

281

285

746

727

786

788

792

315

310

836

814

857

808

776

-

Secondfoot-days

37,821

418,094

54,068

508,898

May

295

472

736

868

1,080

1,260

1,270

657

290

916

997

1,020

1,040

1,020

373

308

960

1,090

1,430

1,510

1,750

1,400

454

2,160

2,380

2,370

2,260

2,350

2,320

780

1,580

Maximum

1,920

2,420

? RQA

2,280

2,890

June

2,210

1,910

2,070

2,250

2,460

940

2,260

2,220

2,290

2,240

2,410

2,700

2,660

2,740

2,550

2,450

2,260

2,290

2,890

1,450

2,780

2,100

1,680

2,090

2,130

2,190

392

1,700

1,770

1,860

-

Minimum

290

272

322

281

July

1,510

1,630

1,530

351

4O6

1,580

1,540

1,630

1,680

1,840

378

1,760

1,670

1,650

1,800

1,530

1,720

616

1,480

1,770

1,780

1,820

1,890

1,440

302

1,720

1,890

1,900

1,740

1,900

1,530

Aug.

322

1,890

2,010

1,980

1,810

1,720

1,7OO

318

1,590

1,890

1,820

1,900

1,940

1,600

295

1,950

1,850

1,820

al,680

al,910

al,800

a33O

al,800

al,960

al,980

2,070

2,030

1,980

308

2,020

1,896

Mean

1,220

1,145

1,802

1,390

Sept.

1,980

1,990

1,990

2,070

322

1,240

2,010

2,010

2,030

2,140

502

2,040

2,O6O

2,000

2,010

2,010

1,960

410

2,040

2,020

2,060

2,280

584

2,070

2,090

2,040

1,930

Runoff in 

acre-feet

75,020

829,300

107,200

1,009,000

a Ho gage-height record; 

Creek.

discharge computed on basis of power-plant records and discharge of Pall
Location.- Water-stage recorder, lat. <il°23', long. 123°29', in IJE-j sec. 4, T. 11 N., R.

t> K. , 300 feet downstream from Salmon River and 1 mile west of Semesbar post office

Altitude of gage, about 450 feet (from topographic map). 

Drainage area.- 8,480 square miles. 

Records available.- October 1927 to September 1948. 

Average discharge.- 20 years (1927-29, 1930-48), 6,592 second-feet^

;._- Maximum discharge during year, 9ii,200 second-feet Jan. 7 (gagfe height, 38.4 

"from floodmarks), from rating curve extended above 49,000 second-feet by velocityarea studies; minimum, 874 second-feet Oct. 7.

1927-48: Maximum discharge, 97,000 second-feet probably Dec. 28, 1945 (gage height, 

40.0 feet, from floodmarks), from rating curve extended above 49,000 second-feet by 

velocity-area studies; minimum,- 218 second-feet Aug. 26, 1931.

Flood of Feb. 21, 1927, reached a stage of 50.8 feet.

Remarks.- Records excellent except these for period of no gage-height record, which are 

good. Flow considerably regulated by reservoirs and power plants above station. Large 

diversions above station for irrigation. 

Revisions.- W 811: Drainage area.

4.5 

4.9

Rating table, water year 1947-48 

and discharge,

Discharge, In second-feet, water year October 1947 to Septembe

Day Jan. Feb. Hay June July

11,900

14,000

14,600

13,500

14,400

16,100

13,600

14,200

14,000

14,100

9,790

9,360

8,680

8,440

9,480

7,840

7,150

7,250

7,040

7,000

5,600

5,910

6,110

1,940

1,460

2,800

2,960

2,960

2,950

3,000

1,880

2,240

2,870

2,590

3,180

3,420

3,590

3,450

Secondfoot-days

Runoff In 

acre-feet

October. 

November

141,830

123,520

100,980

1,760

2,720

2,640

4,575

4,117

3,257

Calendar year 1947 1,160 4,423

January.. 

February. 

March....

April....

May......

June.....

July.....

August... 

September

484,500

219,010

203,750

342,330

375,810

316,150

127,070

89,870

86,720

4,460

4,280

5,240

7,890

9,140

5,600

2,560

1,990

1,460

15,630

7,552

6,573

11,410

12,120

10,540

4,099

2,899

7,135

Water year 1947-48 86,500 1,460 7,135 5,180,000
KLAMATH RIVER BASIN 421

Smaller reservoirs in Klamath River Basin, Oreg.

 'ourmile Lake Reservoir.- Staff gage, lat. 42°27', long. 122°14', in NW£ sec. 9, T. 36 

S., R. fa fi. , at dam at outlet of Fourmile Lake, 8 miles west of Recreation. Gage 

readings are elevations above mean sea level, irrigation company datum. Drainage area, 

15 square miles. Records available, June 1923 to September 1930, June 1932 to September 1948. Maximum contents observed during year, 11,600 acre-feet July 3 (e]evation, 

5,998.0 feet); minimum observed, 1,297 acre-feet Oct. 8 (elevation, 5,982.4 feet). Maximum contents observed during periods 1923-30, 1932-48, 16,220 acre-feet May 18, 1938, 

June 17, 20, 21, 23, 1944 (elevation, 6,003.1 feet); no usable contents at times.

Reservoir is formed on natural lake by rock-faced earth dam, completed by Rogue River 

Valley Canal Co. about 1922. Capacity, 13,330 acre-feet between elevations 5,980 feet 

(sill of outlet gate) and 6,000 feet (crest of spillway, on which flashboards are placed 

to increase contents to 18,100 acre-feet at elevation 6,005 feet). Figures given herein 

represent usable contents. Water is used for irrigation of lands near Kedford. Gage 

read one to eight times a month. No reading made during April.

Hyatt Prairie Reservoir.- Staff gage, lat. 42°10', long. 122°28', in sec. 16, T. 39 S., R. 

3 E., at dam or Talent Irrigation District on Keene Creek, 3 miles north of AshlandKlamath Palls 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 1948. Maximum contents observed during year, 11,320 acre-feet June 21, 

25, 28 (elevation, 5,010.1 feet); minimum observed, 351 acre-feet Oct. 21 (elevation, 

4,987.2 feet). Maximum contents observed during period 1922-48, 17,410 acre-feet May 

29, 1933 (elevation, 5,017.37 feet); no usable contents at times.

Reservoir is formed by rock-faced earth dam, completed by Talent Irrigation -District 

in 1923; storage began in December 1922. Capacity, 16,180 acre-feet between elevations 

4,981.7 feet (sill of gate, approximate) and 5,016.0 feet (spillway crest). Dead 

storage negligible. Water used for irrigation near Ashland and Talent. Gage read once 

or twice a week from June to September, occasionally at other times.

Other reservoirs.- There are six other small reservoirs in Williamson River Basin and eight 

in Lost Kiver Basin, having a total capacity of 12,300 acre-feet. (See also Gerber 

Reservoir and Clear Lake Reservoir, in "Records obtained by agencies other than the 

Geological Survey," p. 12).

Elevation and contents, water year October 1947 to September 1948

Date

Dec. 31.. .............

Calendar year 1947 . .

Sept. 30. ..............

Water year 1947-48..

Fourmile Lake Reservoir

Elevation 

(feet)t

5,982:8 

5,983.4

-

5,995.05

-

Contents 

(acre-feet)

1,324 

1,520 

1,856 

1,970

-

2,070 

2,320 

2,370 

2,425 

7,040 

11,350 

9,290 

5,196 

5,200

-

Change In 

contents 

during month 

(acre-feet)

+196 

+336 

+114

-2,426

+100 

+250 

+50 

+55 

+4,615 

+4,310 

-2,060 

-4,094 

+4

+3,876

Hyatt Prairie Reservoir

Elevation 

(feet)t

:

-

'-

-

Contents 

(acre-feet)

2SO 

480 

910 

1,510

-

2,780 

3,220 

3,930 

5,960 

10,060 

11,280 

10,330 

7,020 

5,750

-

Change in 

contents 

during month 

(acre-feet)

+2OO 

+430 

+600

-150

+1,270 

+440 

+710 

+2,030 

+4,100 

+1,220 

-950 

-3,310 

-1,270

+5,470

t Hour of reading not known.

Note.- Contents Interpolated for days on which gage was not

889419 O - 50 - 28
422 KLAMATH RIVER BASIN

Sprague River near Chiloquin, Oreg.

Location.- Water-stage recorder, lat. 42°3S', long. 121°51', in NE^ sec. 35 T. 34 S., R.

 V K., l£ 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 1948. July 1920 to September 1931 at site

 at McOready Ranch, 12 miles upstream; records equivalent except for extremely low stsgee

Average discharge.- 27 years (1921-48), 460 second-feet.

Extremes.- Maximum discharge during year, 1,890 second-feet June 1, 2 (gage height, 3.87 

feet); minimum, 171 second-feet July 29.

1920-48: Maximum discharge, 6,650 second-feet Apr. 1, 1943 (gage height, 7.47 feet); 

minimum daily, 50 second-feet (estimated) May 26=, 27, 1926.

Remarks.- Records good except those for periods of ice effect or no gage-height record, ^

 which are fair. Diversions above station for irrigation; regulation by ponding at irrigation dams .

Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power Co. 

Revisions (water years).- W 1011: 1943(M).

Rating table, water year 1947-48 except periods of_ice effect (gage height, in feeu.

and discharge, in second-feet) 

(Shifting-control method used June 26 to Sept. 30)

1.3 140 2.6 830 

1.5 207 2.9 1,060 

1.7 393 3.2 1,300 

Z.O 450 3.6 1,640 

2.3 630 4.0 2,020

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

215 

236 

236 

232 

228

223 

228 

232 

257 

280

262 

257 

280 

275 

284

275 

303 

364 

323 

308

288 

280 

280 

288 

280

275 

275 

280 

280 

280 

280

Nov.

293 

288 

284 

288 

284

280 

280 

280 

280 

275

275 

270 

275 

280 

280

284 

280 

284 

284 

284

284 

280 

270 

275 

28Q

328 

288 

284 

280 

280

Dec.

280 

280 

233 

293

288

280 

284 

280 

270 

b257

275 

257 

b240 

293 

275

270 

280 

275 

275 

280

280 

280 

280 

280 

280

275 

2'tS 

275 

275 

b275 

b260

Jan.

303 

262 

288 

333 

343

*411 

582 

594 

732 

964

1,080 

1,010 

732 

606 

480

406 

379 

364 

374 

359

328 

303 

313 

318 

318

b303 

b240 

b240 

b260 

293 

288

Feb.

303 

b280 

b250 

b280 

28O

b240 

b230 

318 

284 

b230

b230 

b240 

b260 

b270 

288

293 

323 

323 

318 

333

385 

434 

406 

462 

552

486 

395 a385~ 

a375

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1947

I. .....................................

ember. .................................

ter year 1947-48 ......................

liar.

369 

353 

328 

323 

323

308 

308 

308 

308 

308

313 

313 

308 

308 

313

323 

328 

328 

323 

318

318 

323 

328 

343

385

406 

 406 

417 

428 

522 

684

Apr.

1 

1

1 

1

1 

1

Secondfoot-days

8,384 

8,477 

8,568

112,319

13,816 

9,453 

10,971 

25,504 

35,870 

34,944 

9,557 

7,389 

7,659

180.592

Peak discharge (base, 960 see. -ft.)-- Jar>- n ( 5 P-"1 -)

851 

972 

010 

010 

948

795 

678 

624 

624

630

606 

630 

711 

711 

697

781 

893 

996 

030 

040

020 

000 

996 

996 

996

972 

916 

851 

802 

718

Hay

802 

788 

760 

767 

718

718 

760 

788 

809 

858

908 

932 

932 

916

908

932 

980 

964 

1,060 

1,160

1,370 

1,600 

1,770 

1,860 

1,840

1,730 

1,630 

1,580 

1,630 

1,660 

1,740

Maximum

364 

328 

293

932

1,080 

552 

684 

1,040 

1,860 

1,880 

439 

252 

390

1,880

June

1,860 

1,880 

1,840 

1,760 

1,660

1,580 

1,480 

1,430 

1,440 

1,440

1,450 

1,450 

1,420 

1,360 

al,290

al,220 

al,120 

al.OOO 

a900 

a850

h788 

a700 

a 700 

a720 

a710

666 

618 

582 

540 

a490

Minimum

215 

270 

240

159

240 

230 

308 

606 

718 

490 

175 

219 

211

175

July

439 

379 

390 

390 

385

369 

353 

353 

359

374

369 

338 

318 

308 

308

303 

284 

280 

280 

280

275 

275 

270 

262 

257

252 

252 

266 

175 

182 

232

Aug.

240 

240 

252 

248 

244

236 

244 

244 

248 

244

223 

232 

240 

240 

240

236 

219 

223 

240 

236

232 

236 

240 

236 

236

240 

240 

240 

240 

240 

240

Mean

270 

283 

276

308

146 

326 

354 

850 

1,157 

1,165 

308 

238 

255

493

1,100 sec. -ft.; June 1 (9 p.m.)

Sept.

240 

236 

228 

223 

223

?23 

223 

232 

228 

228

223 

215 

215 

215 

211

219 

228 

240 

244

257

288 

390 

359 

308 

293

288 

293 

293 

298 

298

Runoff in 

acre feet

16,630 

16,810 

16,990

222,800

27,400 

18,750 

21,760 

50,590 

71,150 

69,310 

18,960 

14,660 

15,190

358.200 . to June 2

(4 a.m.) 1,890 sec. -ft.

* Winter discharge measurement made on this day.

a Ho gage-height record,- discharge computed on basis of range 

River below Sprague River, near Chiloquin.

b Stage-discharge relation affected by ice.

h C

in stage and records for Willlamson
KLAMATH RIVEE BASIN 423

Cascade Canal near Fish Lake, Oreg.

Location.- Water-stage recorder, lat. 42°24 I , long. 122°16', in SE£ sec. 30, T. 36 S., R. 

b K., at divide between Rogue River and Klamath River Basins, 3 miles upstream from 

Fish Lake and 10 miles downstream from point of diversion.

Records available.- June 1924 to September 1948 (irrigation seasons only).

Extremes.- Maximum daily discharge during period July to September, 46 second-feet Aug. 

J.B-24; no flow at times.

1924-48: Maximum daily discharge, 54 second-feet June 5-7, July 10, 11, 1934; no 

flow at times.

Remarks.- Records fair. Water stored in Fourmile Lake Reservoir was released to canal 

during period July 2 to Aug. 27. Canal diverts water from Fourmile Creek, in Klamath 

River Basin, and discharges into lava bed 1^ miles above Fish Lake, in Rogue River 

Basin. Also some runoff from melting snow intercepted and diverted. Entire flow 

sinks in lava bed, reappearing in springs at head of Fish Lake.

Cooperation.- Water-stage recorder inspected by employee of Medford Irrigation District.

Discharge, in second-feet, water year October 1947 to -September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year ......................

January. ...................................

February. ..................................

March.. ....................................

April. .....................................

May. .......................................

June .......................................

July 2-31. .................................

August .....................................

September ..................................

The period. ..............................

Mar. Apr.

Secondfoot-days

725

1, 128

0

-

May

Maximum

38

46

0

-

June

Minimum

_

15

0

0

-

July

.

_

15

17

17

17

16

16

16

18

Ifl

17

20

26

26

22

18

26

26

25

26

28

29

31

34

35

36

37

37

38

38

Aug.

38

38

38

38

38

38

39

39

41

42

42

43

44

44

44

44

45

46

46

46

46

46

46

46

44

44

23

0

0

0

0

Mean

_

25.0

36.4

0

-

Sept.

Runoff in 

acre- feet

_

_

_

1,440

2,240

0

3,680
424 KLAMATH RIVER BASIN

"A" Canal at Klamath Falls, Oreg.

Location.- Water-stage recorder, lat. 42,14', long. 121°48', in NE^- sec. 30, T. 38 S., R. 

y E., 300 feet downstream from head gates of canal and 1 mile northwest of Klamath 

Falls. Datum of gage is 4,126.22 feet above mean sea level, Bureau of Reclamation 

datum (levels by Bureau of Reclamation).

Records available.- October 1910 to September 1948. 

Average discharge.- 38 years, 197 second-feet.

Extremes.- Maximum daily discharge during year, 999 second-feet July 2; no flow Oct. 11 

to Apr. 19.

1910-48: Maximum daily discharge, 1,100 second-feet June 22, 1945; no flow at 

times.

Remarks. - Records good. Canal diverts water from Upper Klamath Lake in NEir sec. 30, T. 

3t> U. , R. 9 E., for irrigation of lands east of Klamath River on both sides of Lost 

River. Most of return water reaches Lost River.

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

350

330

305

312

312

297

286

253

227

105

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov. Dec. Jan. Feb.

Month

December. ..................................

Calendar year 1947 ......................

April. .....................................

May........................................

September. .................................

Water year 1947-48 ......................

Mar. Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

18

29

49

88

94

98

95

82

84

83

76

Second 

foot-days

0

110,202

796

11,038

86,996

May

91

109

113

115 11'5

119

142

154

155

199

243

343

393

422

431

465

514

497

348

228

201

157

162

204

226

271

333

388

405

346

314

Maximum

350

0

0

1,070

0

98

551

999

June

345

422

509

537

483

434

453

475

559

596

612

602

556

581

533

742

782

672

381

287

253

234

248

333

465

570

701

880

950

929

-

Minimum

0

0

0

0

0

234

65

0

July

976

999

985

954

913

870

862

852

863

864

852

867

894

894

909

912

90S

894

897

923

939

939

925

901

904

391

901

873

862

841

848

Aug.

836

818

822

822

797

772

769

744

730

705

700

698

672

691

687

666

679

675

666

650

626

591

532

508

501

512

493

452

440

444

450

Mean

89.6

0

0

302

0

26.5

265

537

900

368

238

Sept.

453

476

493

492

460

458

483

483

505

503

513

517

542

551

539

526

446

330

258

247

235

206

194

195

192

175

167

168

161

65

-

Runoff in 

acre feet

5,510

0

0

218,600

0

0

0

1,580

16,270

31,980

55,360

21,890

172,600
KLAMATH RIVER BASIN 425

Keno Canal at Klamath Falls, Oreg.

Location.- Watt-hour meter, lat. 42°13 T , long. li!l°48', in SW-f sec. 32, T. 38 S., R. £ 

K., in west-side plant of The California Oregon Power Co., a quarter of a mile upstream from Link River bridge at Klamath Falls, with staff gage in canal 200 feet 

above penstock.

Extremes - Maximum daily discharge during year, 311 second-feet Jan. 8; no flow at times. 

1923-48: Maximum daily discharge, 339 second-feet Feb. 1, 1940; no flow at times.

Remarks.- Records good except those for Oct. 1 to Mar. &, which are fair. Watt-hour 

meter read daily at 12 p.m.; staff gage read once or twice daily. Discharge determined by combining flow through power plant, as computed from record of electrical 

output, with flow spilled from canal at wasteway above penstock. Canal diverts water 

from Upper Klamath Lake at Link River storage dam in cE-j see. 30i. Water is used for 

developing power and returned to Link River in 3E^ 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 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

264

261

266

266

264

269

244

249

236

256

266

267

260

263

233

271

254

265

263

270

263

26C

258

261

260

254

256

255

251

210 23-7

Nov.

254

276

266

268

267

267

263

266

270

263

273

269

262

258

259

265

260

265

265

260

265

260

252

260

265

266

277

272

268

264

-

Dec.

265

265

260

263

262

256

261

257

276

252

255

257

262

261

261

261

253

252

197

268

262

275

270

274

277

270

284

271

281

268

271

Jan.

268

274

279

279

289

283

297

311

301

282

279

290

290

279

283

281

282

284

221

290

278

272

270

268

272

274

273

273

269

271

267

Feb.

271

274

273

£73

272

274

276

269

272

272

274

271

271

224

283

271

275

278

277

271

268

273

271

269

275

277

276

272

136

-

-

Month

October . ...................................

November. ........................ .........

December. ..................................

Calendar year 1947 ......................

January .................................. .

February ............................. .....

March ......................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1947-48 ... ...... ...........

Mar.

3

104

282

274

276

115

6

6

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

0

0

0

0

O

0

0

Apr.

0

0

0

0

0

0

0

O

0

0

0

90

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

Secondfoot days

7 957

7 945

8^147

86,924

8 , 629

7,738

1,116

90

2 , 161

8 , 280

7,427

8,423

8 , 187

76,100

May

0

O

0

0

0

0

0

0

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

202

288

281

279

280

279

276

276

Maximum

271

277

284

301

311

283

282

90

28 B

282

277

285

311

June

279

276

275

278

280

280

264

277

277

277

276

279

279

282

281

278

282

287

278

284

275

281

274

273

273

270

270

274

246

275

-

Minimum

210

252

197

101

221

136

0

0

0

246

3

262

267

0

July

270

271

268

267

7

3

6

41

207

282

282

279

277

276

277

277

276

276

276

275

278

278

278

274

274

276

276

274

274

273

279

Aug.

276

276

273

270

274

269

269

266

262

269

273

277

275

277

271

271

273

273

269

269

266

264

274

271

275

276

275

274

270

273

273

Mean

257

265

263

238

278

267

36.0

3.0

69.7

240

272

273

208

Sept.

275

274

270

271

274

271

268

269

270

277

275

275

270

270

273

273

273

269

272

273

273

269

267

274

285

278

276

276

274

273

-

Runoff in 

acre feet

15,780

15,760

16,160

172,400

17,120

15,350

2,210

179

4,290

16,420

14,730

16,710

16,240

150,900
426 KLAMATH RIVER BASIN

Lost River diversion canal near Olene, Oreg.

Location.- Staff gage above and below head gates at intake of canal at Lost River Dam, 

lat. 42°09' , long. 121°40>, in SW£ sec. 29, T. 39 S., R. 10 E., 4 miles southwest of 

Olene.

Records available.- May 1912 to September 1948.

Average discharge.- 32 years (1912-15, 1919-48), 128 second-feet.

Extremes.- Maximum daily discharge during year, 313 second-feet Sept. 29; no flow at 

times.

1912-48: Maximum daily discharge, 1,280 second-feet Jan. 30, 1942; no flow at 

times.

Remarks.- Records fair. Discharge computed from daily record of openings and head on 

gates. Canal diverts water from Lost River, and discharges into Klamath River to aid 

in reclamation of bed of Tule Lake. Discharge includes water occasionally wasted from 

"C" Canal flume below intake. At times direction of flow is reversed and water diverted from Klamath River into Lost River. (See record for diversion from Klamath 

River to Lost River near Olene.)

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IT

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

55

59

59

56

56

87

112

133

147

153

165

160

144

139

127

114

133

128

115

117

128

155

178

170

183

186

166

147

144

141

134

Nov.

141

130

128

132

134

133

134

116

129

129

125

126

129

129

135

126

134

161

158

139

138

127

126

124

126

126

126

127

113

114

Dec.

126

129

129

130

137

138

135

135

135

135

130

131

121

110

120

127

125

90

73

75

66

78

84

59

50

33

27

6

0

0

0

Jan.

0

0

0

0

0

123

92

103

178

218

210

159

102

70

61

50

0

47

41

15

36

39

39

23

36

50

0

0

0

0

0

Feb.

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1947 ......................

January .................................. .

February. .................. ...............

March. .....................................

April. .....................................

May........................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

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

36

Apr.

Secondfoot-days

3,992

3,915

2,834

30,742

1,692

0

36

471

2,287

1,621

0

3,511

6,158

26,517

106

112

102

77

60

14

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

May

0

0

0

0

0

0

0

0

0

o

0

0

0

73

117

101

91

73

80

106

151

171

170

180

191

166

162

143

113

99

100

June

107

110

111

101

38

79

103

112

93

8

0

0

0

0

0

0

0

0

74

101

139

159

139

93

4

0

0

0

0

0

Maximum Minimum

186 55

161 113

138 0

452 0

218 0

0 0

36 0

112 0

191 0

159 0

0 0

236 0

313 154

313 0

July Aug.

0

0

0

64

106

97

91

81

74

71

74

74

69

90

118

142

144

115

87

97

112

120

146

199

236

208

189

167

175

183

182

Sept.

155

159

168

167

169

154

166

197

208

190

190

180

164

155

156

155

162

187

218

242

251

248

228

241

266

257

262

278

313

271

H Runoff in Mean acre-feet

129 7,920

130 7,770

91.4 5,620

84.2 60,970

54.6 3,360

0 0

1.2 71

15.7 934

73.8 4,540

54.0 3,220

0 0

113 6,960

205 12,210

72.5 52,600
KLAMATH RIVER BASIN 427 

Diversion from Klamath River to Lost River near Olene, Oreg.

Location.- Staff gage above rectangular gate at wasteway, lat. 42°09', long. 121°42', in 

 SW£ sec. 30, T. 39 S., R. 10 E., 5 miles southwest of Olene.

Records available.- April 1931, when diversion began, to September 1948. 

Average discharge.- 18 years, 35.7 second-feet.

Extremes.- Maximum daily discharge during year, 430 second-feet Apr. 23, 24; no flow at 

times.

1931-48: Maximum daily discharge, 564 second-feet Apr. 13, 1933; no flow at times.

Remarks.- Records fair. Discharge computed from daily record of gate openings and gage 

readings at wasteway. 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.) Beginning in April 1931, water has been diverted at times 

from Klamath River and released into drain which empties into Lost River, from which 

it is rediverted for irrigation of lands near Tule Lake.

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1947 .............. .......

January ....................................

February ........................ ..........

March. .....................................

April ......................................

May. .......................................

June .......................................

Jnly. ......................................

August ....................................

September ..................................

Water year 1947-48 ......................

Mar.

o

o

o

0

0

0

o

0

41

62

59

57

57

57

56

55

55

55

55

55

55

68

85

43

0

O

0

0

o

0

0

Apr.

0

0

0

0

o

0

25

39

38

20

20

44

85

169

256

232

284

303

336

374

394

415

430

430

357

219

226

240

205

143

Secondfoot-days

0

O

o

15,686

0

0

915

5 *242 339

662

2,971

0

0

10,129

May

93

80

53

16

0

0

0

0

o

0

o

o

0

0

0

0

o

0

o

o

0

o

0

o

0

0

0

0

0

0

0

Maximum

0

o

0

461

0

O

85

430

93

191

284

O

O

430

June

o

0

0

0

0

o

o

0

0

0

0

0

o

0

o

o

58

50

0

o

0

0

0

0

o

0

58

146

159

191

-

Minimum

o

o

o

0

0

0

0

0

0

0

0

0

o

o

July

276

284

170

130

203

225

230

230

230

230

230

209

1S9

111

44

0

0

O

0

0

o

o

0

o

0

0

0

0

0

0

0

Aug.

Mean

0

0

0

43.0

0

O

29.5

178

7.8

22.1

95.8

0

0

27.7

Sept.

Runoff in 

acre-feet

0

0

o

31,120

0

0

1,810

10,590

480

1,310

5,990

0

0

2O, 080
KLAHATH RIVER BASIN

Location^- Staff gage, lat. 41°58' , long. 122°22' , in NE^ sec. 36, T. 48 N., R. 5 W., 

l,500~feet upstream from mouth and 0.8 mile south of Fall Creek power plant and Cope 

post office.

Records available.- July 1928 to September 1P48.

Remarks.- Records fair. Gage read once daily. One diversion above station for irrigation. 

Occasional diurnal fluctuation .caused by power plant and fish ponds half a mile above 

station.

Cooperation.- Gage readings furnished by The California Oregon Power Co.

Rating table, water year 1947-48 (gage height, in fe

and discharge, in second-feet) 

(Shifting-control method used May 21 to Aug. 19)

1.1

1.2

2.0 117

2.2 146

2.5 196

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

34

34

34

34

33

33

33

32

32

a32

a33

33

33

33

32

40

33

a32

32

40

34

33

33

33

35

35

35

36

36

36

a37

Nov.

38

36

36

38

36

36

36

36

a36

35

35

33

36

36

35

a35

35

35

35

35

35

35

35

35

35

35

a35

35

35

35

-

Dec.

35

35

35

35

35

35

35

35

35

35

35

34

35

35

35

35

35

34

35

35

35

35

35

35

a35

35

a35

35

35

35

35

Jan.

35

42

39

92

52

92

193

63

49

46

a44

a42

40

39

39

39

39

39

a39

a38

38

38

37

37

37

38

37

37

37

a37

37

Feb.

37

37

36

36

36

36

36

37

37

a37

37

37

36

36

38

37

a38

38

38

38

a38

38

38

40

40

40

40

40

39

_

-

Month

October .................... ...............

November ......................... . . .

December ................................. .

Calendar year 1947 ......................

January ....................................

February ............................. .....

March. ............................ ...

April ......................................

May. .......................................

June. ......................................

July... ....................................

August .....................................

September. .................................

Water year 1947-48 ......................

Mar.

39

39

38

38

39

39

38

38

44

42

40

39

39

39

42

41

41

a41

41

41

a41

40

5fl

53

51

a51

a50

50

49

47

46

Apr.

45

347

a48

49

51

51

50

48

49

49

51

48

47

46

47

47

51

48

47

47

47

48

48

48

46

44

44

47

5]

51

-

Secondfoot-days

1,055

1,063

1,083

12,708

1,511

1,091

1,334

1,440

1,271

1,084

1,067

989

940

13,928

May

51

47

45

45

44

44

a44

a44

44

42

42

41

41

a41

a40

40

39

39

39

40

39

a39

39

38

40

39

37

36

a37

38

37

Maximum

40

38

35

57

193

40

58

51

51

40

36

33

33

193

June

37

36

40

a39

a39

38

38

37

37

37

a37

a36

36

36

36

36

36

a36

a36

36

36

36

36

36

a35

a35

34

a33

3?

32

-

Minimum

32

33

34

31

35

36

38

44

36

32

32

31

30

30

July

34

a34

35

35

35

36

a35

34

a34

a35

35

35

35

35

35

35

a35

35

35

35

34

34

a34

34

34

34

34

34

34

32

32

Aug.

32

33

33

32

33

33

33

33

33

32

a32

32

32

32

32

32

32

32

33

a32

a5 1

31

31

31

31

31

a31

a31

31

31

31

Mean

34.0

35.4

34.9

34.8

48.7

37.6

43.0

48.0

41.0

36 . 1

34.4

31 9

31.3

38.1

Sept.

31

31

a31

a31

31

31

31

30

30

31

31

31

30

30

31

a32

a32

33

32

31

31

31

31

33

32

32

33

32

32

32

Runoff in 

acre- feet

2,090

2,110

2,150

3,000

2,160

2,650

2's20

2,150

2,120

1,960

1,860

27,630

a No gage-height record; discharge interpolated, or uted on basis of weather records
KLAMATH RIVER BASIN 429

Little Beaver Creek at Pinehurst, Oreg.

Location.- Water-stage recorder, lat. 42°07', long. 122°22', in NW-j sec. 4, T. 40 S., R. 

4 K., at Pinehurst, 150 feet upstream from mouth, a quarter of a mile downstream from 

Corral Creek, and 18 miles southeast of Ashland. Datum of gage is 3,348.81 feet 

above mean sea level, datum of 1929 (levels by Bureau of Reclamation).

Records available.- October 1945 to September 1948 in reports of Geological Survey (discontinued). 0c~tober 1943 to September 1945 in files of State engineer.

Extremes.- Maximum discharge during year, 407 second-feet Jan. 7 (gage height, 5.05 feet); 

minimum, 0.2 second-foot Aug. 4-7, Sept. 12-15.

1943-48: Maximum discharge, that of Jan. 7, 1948; minimum, 0.1 second-foot Aug. 17, 

18, 1947.

Remarks.- Records good except those for periods of ice effect, which are poor, 

diversion above station. No regulation.

Dne small

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2b

26

2V

28

29

30

31

Oct.

0.7

.3

.5

.7

.a

.a

1.2

1.3 i.a

2.0

1.8

1.4

1.1

1.1

3.2

13

2.1

1.5

1.3

4.7

2.6

1.8

1.7

1.5

1.4

1.2

1.2

1.8

2.4

2.0

1.6

Nov.

4.3

2.6

3.5

5.7

5.0

5.0

4.0

4.5

3.8

3.0

3.7

3.1

4.3

5.7

5.7

5.0

3. a

3.4

3.0

2.6

2.6

2.5

2.6

2.1

2.1

2.1

2.1

2.0

2.0

2.0

-

Dec.

2.5

2.1

3.2

3.2

2.5

2.3

2.1

2.1

2.1

2.3

2.0

*2.6

3.1

4.2

3.8

2.8

3.4

3.5

3.4

3.1

3. a

3.4

3.1

2.7

2.4

2.3

2.4

3.0

2.7

b2

b2

Jan.

2.4

4.3

5.5

39

30

155

*190

50

34

22

16

10

9.4

*8.2

7.9

7.5

6.3

5.6

b5

b5

4.4

3. 8

3.5

3.a

4.9

b4

b4

b4

b4

5.3

5.3

Feb.

4.6

b4

b4

b4

4.6

5.1

5.3

4.9

4.6

4.6

4.9

4.6

4.4

4.4

9.4

14

7.9

12

7.5

*5.6

29

35

22

18

16

19

16

19

15

_

-

Month

December ...................................

Calendar year 1947 ......................

Septembe r ..................................

Water year 1947-48 ......................

Mar.

13

12

10

9. a

9.4

14

11

12

17

13

12

11

12

14

12

14

14

14

14

14

16

26

22

20ia

18ia

17

17

20

19

Apr.

20

24

23

25

23

20

17

16

17

16

16

14

14

15

20

25

26

26

26

27

28

28

26

27

26

24

24

28

28

25

Seoondfoot-days

86.1

1,390.3

30. a

3,490.0

May

23

21

24

25

26

29

30

28

27

26

26

26

26

26

27

29

31

30

29

26

25

25

25

27

30

28

25

22

21

19

22

Maximum

4.2

49

2.0

190

June

18

16

14

13

12

12

10

9.4

8.5

a. 2

7.9

7.3

6 3

5.3

5.1

4.9

4.6

5.3

5.1

3.1

4.9

4.0

3.8

3.5

3.5

3.3

3.1

2.9

2.9

2.8

-

Minimum

2

.2

.2

.2

July

2. a

2.8

3.3

2.9

3. a

3.8

2.9

2.8

2.6

2.3

1.2

1.2

1.0

.9

.9

.9

1.1

1.1

1.1

1.2

1.2

1.4

1.5

1.5

1.5

1.4

1.4

1.4

1.3

1.3

1.2

Aug.

1.1

.6

.6

.4

.2

.2

.4

.5

.6

.6

.5

.5

.5

.6

1.1

1.0

.9

1.1

3.1

1.4

1.3

1.7 i.a

1.5

1.4

1.3

1.2

1.2

1.2

1.1

1.0

Mean

2.78

3.81

21 3

25 9

1.03

9.54

Sept.

0.9

.8

.a

.9

.9

. .9

.8

.8

.a

.7

.4

.2

.2

.2

.2

.6

1.8

1.8

1.4

1.3

1.2

1.2

1.7

2.0

1.7

1.5

1.3

1.3

1.3

1.2

-

Runoff in 

acre feet

171

2,760

61

6,910

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
430 KLAMATH RIVER BASIN

Keene Creek near Lincoln, Oreg.

Location - Water-stage recorder, lat. 42°08' long. 122°29', In SW£NW£ sec. 33, T. 39 S., 

H. i) E., at bridge on State Highway 66, lj miles downstream from Keene Creek diversion 

dam and 4-j miles northwest of Lincoln.

Records available.- October 1945 to September 1948 In reports of Geological Survey (discontinued).December 1940 to September 1943 at site l| miles upstream, and October 

1943 to September 1945 at present site, in files of State engineer.

Extremes.- Maximum discharge during year, 105 second-feet Jan. 7 (gage height, 2.05 feet); 

minimum, 0.1 second-foot Oct. 1-15.

1940-48: Maximum discharge, that of Jan. 7, 1949; practically no flow at times.

Remarks.- Records fair except those for periods of ice effect, which are poor. Flow 

regulated by Hyatt Prairie Reservoir (p. 421). Water released from that reservoir 

is diverted by Keene Creek Canal into Emigrant Creek Basin (see following page)

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.8

.3

.2

.2

.5

.6

.4

.3

.3

.3

-.2

.2

.3.4'

.4

.4

Nov.

0.7

.8

1.2

1.3

1.0

1.0

1.0

1.9

1.9

2.3

2.4

1.9

1.6

1.8

5.2

5.5

3.4

3.4

2.3

1.9

1.6

1.4

.9

1.0

1.4

1.5

1.4

1.3

1.2

1.4

-

Dec.

3.7

1.9

2.4

1.8

2.6

1.2

1.0

1..1

1.2

bl

1.0

*1.1

1.0

1.7

1.4

1.2

1.1

1.1

1.2

1.3

1.1

2.0

1.0

.9

1.4

1.0-

1.7

3.0

2.5

b2

1.7

Jan.

1.5

1.5

1.6

4.0

6.8

36

*66

30

16

13

11

9.6

8.9

*8.0

8.0

7.7

7.4

6.5

5.5

5.3

5.3

5.3

4.9

4.4

3.7

b3

b3

3.2

b3

3.0

3.0

Feb.

3.2

b3

b3

b3

b3

b3

b3

b3

2.7

2.7

2.5

2.4

2.4

2.3

2.0

2.0

2.2

3.2

2.9

*2.2

8.0

6.3

4.0

4.4

4.9

6.8

4.7

4.4

4.2

_

-

Month

December ...................................

Calendar year 1947 ......................

May. .......................................

July. ......................................

September . .................................

Water year 1947 48 ......................

Mar.

.9

.3

.1

' .7

.4

.9

.4

'. .4

.4

.2

.8

.2

' .2

- .2

.2

.8

' .2

.8

.8

.0

.0

.2

.9

.0

.7

6.2

6.2

8.0

8.9

11

11

Apr.

19

20

16

14

11

10

9.6

9.2

8.6

8.6

8.3

9.2

11

24

58

37

36

40

43

46

42

37

31

33

31

29

27

24

21

19

-

Secondfcot-days

7.4

55.6

48.3

769.8

139 2

14.1

2,352.1

May

22

21

24

24

30

33

30

26

24

23

24

24

22

21

21

22

25

29

25

33

34

30

24

24

24

20

18

16

14

14

15

Maximum

0.8

5.5

3.7

36

8.0

1.1

66

June

13

11

10

9.2

9.6

10

7.4

6.8

5.5

5.5

5.3

3.7

2.4

2.2

1.9

3.0

3.4

4.9

3.4

6.0

4.4

1.9

1.4

1.3

1.0

1.0

1.0

1.0

1.0

1.0

-

Minimum

0.1

.7

.9

.1

1.5

2.0

14

.2

.1

July

1.0

.9

.8

.8

1.0

1.0

.7

.5

.5

.5

.5

.5

.5

.5

.4

.4

.5

.5

.5

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.4

.4

Aug.

0.4

.4

.4

.4

.4

.4

.4.8'

1.0

1.9

1.9

1.8

1.5

1.5

1.8

2.2

2.0

2.5

2.5

1.9

1.9

2.5

2.0

1.8

1.7

1.6

1.1

.9

.6

.5

.5

Mean

0.24

1.85

1.56

2.11

9.55

3.50

5.23

. 23.7

.59

.47

 6.43

Sept.

0.3

.2

.2

.2

.2

.2

.2

.3

.6

.8

.9

.0

.0

.0

.0

.1

.0

.5

.3

.3

.2

.3.4'

.4

.4

.3

.2

.2

.2

.2

-

Runoff in 

acre-feet

15

110

96

1,530

587

201

321

1,460

276

36

82

28

4,660

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
KLAMATH RIVER BASIN ' 

Keene Creek Canal near Ashland, Oreg.

Location.- Water-stage recorder, lat. 42°09', long. 122°30', In NW£ sec. 29, T. 39 S., 

K. 3 E., 400 feet upstream from Cascade Divide, 2 miles north of Ashland-Klamath 

Falls highway, and 16 miles southeast of Ashland.

Records available.- June 1923 to September 1948 (some years incomplete).

Extremes.- Maximum daily discharge during year, 79 second-feet Aug. 18, 21-25; no flow 

at times.

1923-48: Maximum daily discharge, 82 second-feet Aug. 2, 1938, July 23, 1939; 

no flow at times.

Remarka.- Records poor. Water released from Hyatt Prairie Reservoir-is diverted by 

this canal from Keene Creek in SE-J- sec. 20, T. 39 S., R. 3 E., and discharged into 

Emigrant Creek Basin for irrigation of lands near Ashland and Talent. Stored water 

released from reservoir June 30 to Sept. 23.

Discharge, in seccnd feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

October. ...................................

Novembe r ...................................

December . ..................................

Calendar year ......................

January. ................................. .

February. ..................................

March. .....................................

April ......................................

May. .......................................

June 12-30 ........................ ...

July. ......................................

Angust .....................................

September. .................................

The period. ....... ......................

Mar. Apr.

Secondfoot-days

~88

515

1,717

529

-

May

Maximum

20

79

-

June

_

-

_

_

-

.

-

_

_

-

_

4

5

3

1

0

ao

a2

a2

4

5

5

4

3

2

3

3

9

13

20

Minimum

0

_

0

-

July

17

17

14

13

14

10

6

> a!2

17

21

23

23

23

24

> a23

Aug.

ui 22

27

\

*> a48

'

69

69

68

71

73

76

76

79

74

78

79

79

79

79

79

71

90

50

38

38

24

Mean

4.6

16.6

55.4

17.6

-

Sept.

14

18

20

20

20

20

20

23

42

50

' a38

27

8

7

as

a4

a,2

al

0

0

0

O

0

0

0

-

Runoff in 

acre-feet

_

_

175

1,020

3,410

1,050

5,660

a No gage-height record; discharge interpolated.
432 KLAMATH RIVER BASIN

Shasta River near Yreka, Calif.

Location.- Water-stage recorder, lat. 41°49', long. 122°35', in NE£ sec. 24, T. 46 N., 

K. 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 December 1941, December 1944 to September 1948.

Average discharge.- 11 years (1933-41, 1945-48), 153 second-feet.

Extremes.- Maximum discharge during year, 1,060 second-feet Jan. 7 (gage height, 5.02 

feet); minimum, 17 second-feet Aug. 7.

1933-41, 1944-48: Maximum discharge, 2,440 second-feet Feb. 29, 1940 (gage height, 

6.72 feet), from rating curve extended above 900 second-feet by logarithmic plotting 

and velocity-area'Studies; 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, 

i'low partly regulated by reservoir above station. Many diversions above station for 

irrigation.

Rating table, water-year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

1.7 IS 2.6 93 4.0 505 

1.8 20 2.8 128 4.4 695 

2.0 31 3.0 181 4.7 865 

2.2 46 3.3 269 

2.4 66 3.6 365

Discharge, in second-feet, water year October 1947 to September 1948

Oct.

115 

113 

109 

113 

111

109 

122

136 

146 

153

153 

150 

150 

153 

148

170 

161 

153 

153 

159

164 

161 

161 

159 

153

153 

153 

153 

a!60 

a!70 

a!80

Nov.

a!90 

a!98 

a!98 

a!98 

a!98

al98 

a!98 

a!98 

a!98 

198

173 

161 

161 

173 

170

161 

156 

159 

159 

156

156 

153 

150 

153 

153

156 

156 

156 

156 

159

Dec.

159 

159 

161 

167 

161

159 

159 

161 

164 

164

156 

153 

156 

156 

150

146 

140 

140 

146 

148

148 

156 

161 

159 

148

148 

146 

164 

161 

150 

140

Jan.

148 

206 

198 

310 

442

421

828 

721 

545 

362

293 

245 

218 

209 

201

198 

192 

192 

203 

198

192 

184 

181 

181 

184

170 

148 

148 

159 

164 

167

Feb.

187 

181 

173 

167 

167

164 

148 

150 

173 

178

156 

150 

153 

175

178

173 

164 

148 

150 

153

159 

195 

195 

161 

164

164 

161 

178 

184

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber . ..................................

lendar year 1947 

ary

h. .....................................

1. ...............................

St. ....................................

ember. ................... .............

ter year 1947 48 ......................

Peak discharge (base, 300 sec. -ft.).- Jan.

Mar.

178 

170 

148 

140 

146

143 

148 

153 

175 

167

161 

156 

156 

164 

161

164 

167 

167 

176 

167

161 

164 

206 

230 

239

224 

218 

233 

218 

212 

201

Apr.

187 

173 

192 

201 

212

203 

195 

148 

136 

140

140 

126 

128 

133 

138

170 

195 

150 

118 

115

107 

130 

115 

104 

122

120

140 

181 

339 

390

May

362 

332 

287 

257 

224

227 

218 

195 

181 

164

118 

107 

104 

89 

60

51

59 

82 

122 

218

245 

239 

215 

206 

239

140 

148 

167 

153 

136 

138

Says ««* 

4,544 180 

5,149 198 

4,786 167

39,419 347

8,208 828 

4,849 195 

5,507 239 

4,948 390 

5,483 362 

4,638 293 

1,158 85 

1,871 107 

3,378 227

54,519 828

 June

118 

101 

103 

245 

290

293 

260 

215 

181 

159

150 

150 

161 

146 

143

143 

111

146 

178 

181

218 

170 

156 

150 

128

101 

83 

67 

53 

38

Minimum

109 

150 

140

14

148 

148 

140 

104 

51 

38 

18 

19 

44

18

July

38 

32

46 

70 

79

85 

72 

58 

56 

80

46 

31 

33 

32 

29

30 

27 

26 

22 

26

25 

20 

22 

22

20

20 

18 

22 

20 

24 

27

Aug.

29 

34 

53 

46 

29

19 

22

54 

65 

76

95

107 

82 

67 

46

41 

44 

42

63 

60

60 

66 

103 

89 

79

72 

65 

62 

60 

72 

69

Sept.

67 

63 

60 

53 

55

53 

56 

64 

55 

44

46 

46 

46 

44

48

70 

106 

198 

227 

206

184 

187 

187 

187 

189

192 

195 

181 

156 

113

M«an Runoff in 

ean acre-feet

147 9,010 

172 10,210 

154 9,490

108 78,180

265 16,280 

167 9,620 

178 10,920 

165 9,810 

177 10,880 

155 9,200 

37.4 2,300 

60.4 3,710 

113 6,700

149 108,100

5 (2 a.m.) 513 sec . -f t . ; Jan. 7 (11 p.m.) 1,060 sec. -ft.

Apr. 30 (1 to 3 a.m.) 410 sec.-ft.; May 25 (5 a.m.) 306 sec.-ft.; June 6 (2 a.m.) 312 sec.-ft. 

a No gage-height record; discharge computed on "basis of range In stage, weather records, and 

records for Scott River near Port Jones.
KLAMATH RIVER BASIN 433

Scott River near Fort Jones, Calif.

Location.- Water-stage recorder, lat. 41°38 1 35", long. 123°00'35", in NW^ sec. 28, T.

44 N., R. 10 W., 150 feet south of road from Fort Jones to Scotts Bar, 1.8 miles

upstream from Snow Creek, and 10.5 miles downstream from Fort Jones. Datum of gage

is 2,625.80 feet above mean sea level (levels by Corps of Engineers). 

Drainage area.- 656 square miles.

Hecords available.- December 1941 to September 1948. 

Extremes.- Maximum discharge during year, 7,290 second-feet Jan. 8 (gage height, 11.61

reet) , from rating curve extended above 3,600 second-feet; minimum, 36 second-feet

Oct. 3.

1941-48: Maximum discharge, 7,340 second-feet Jan. 22, 1943 (gage height, 11.65

feet), from rating curve extended above 3,600 second-feet; minimum, that of Oct. 3,

1948.

Floodmarks indicate stages of about 14 feet, dates not known. 

Remarks.- Records excellent. Many small diversions for irrigation in Scott Valley during

summer.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1-15 Oct. 16 to Sept. 30

1.2 32 1.5 67 2.9 265 6.0 1,750 

1.3 38 1.7 80 3.4 400 7.0 2,540 

1.4 45 1.9 96 4.0 600 8.0 3,450 

1.6 59 2.1 116 4.5 830 9.0 4,450 

2.3 142 5.0 1,120 10.0 5,52O 

2.5 176 5.5 1,420 11.0, 6,620

Discharge, in second- feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

39 

39 

37 

38 

38

38 

40 

41 

44 

46

45 

48 

52 

51 

56

626 

634 

320 

216 

176

263 

232 

184 

163 

147

134 

122 

121 

132 

167 

176

Nov.

184 

253 

236 

236 

239

205 

182 

167 

160 

153

147 

142 

136 

135 

136

152 

156 

150 

148 

142

135 

128 

121 

120 

120

120

120 

120 

122 

124

Dec.

128 

134 

134 

132 

128

124 

118 

116 

114 

108

105 

102 

100 

100 

102

101 

100 

100 

102 

109

118 

120 

120 

117

114

112 

113 

120 

132 

128 

124

Jan.

132 

330 

508 

1,100 

1,680

3,330 

6,510 

5,590 

2,660 

1,830

1,440

1,170 

976 

845 

760

680 

628 

586 

551 

516

488 

472 

452 

436 

418

394 

365 

357 

351 

349 

335

Feb.

324 

316

295 

303 

293

278 

265 

293 

343 

327

288 

270 

265 

268 

298

338 

338 

330 

332 

313

324 

638 

710 

572 

502

465 

456 

446 

424

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1947 

ary

h. .....................................

1. .....................................

St. ....................................

ter year 1947-48 ...............

Peak discharge (base, 1,400 see. -ft.).- Ja

sec. -ft.; May 7 (12 to 1 p.m.) 1,410 sec. -ft 

(8 to 9 a.m.) 2,260 sec. -ft.; June 6 (9 a.m.

Har.

403 

386 

368 

351 

343

335 

327 

321 

316 

300

290 

282 

290

290 

285

278 

275 

268 

263 

255

251

270 

357 

377 

343

321 

313 

313 

319 

319 

321

Apr.

1 

1

1

1 

1 

1

Secondfoot-days

4,465 

4,689 

3,575

102,057

36,239 

10,614 

9,730 

20,854 

37,220 

37,046 

6,892 

2,727 

2,280

176,331

330 

377 

406 

406 

421

421 

406 

397 

409 

424

424 

418 

415 

451 

892

210 

210 

030 

898 

904

060 

140 

050

865 

880

845

790 

820 

810 

745

May

705 

672 

705 

,010 

,040

,210 

,360 

,200 

,040 

928

870 

892 

970 

946 

940

1,130 

,480 

,370 

,180 

,040

970 

982 

,130 

,440 

,870

,040 

,180 

,860 

,500 

,330 

,230

Maximum

634 

253 

134

2,030

6,510 

710 

403 

1,210 

2,180 

2,100 

475 

113 

86

6,510

June

,230 

,430 

,760 

,810 

,830

,100

,900 

,840 

,830 

,900

,980 

,640 

,520 

,370 

,220

,160 

,040 

946 

875 

910

1,010 

886 

770 

700 

652

600 

565 

544 

526 

502

Minimum

37 

120 

100

37

132 

265 

251 

330 

672 

502 

97 

81 

72

37

July

475 

430 

436 

406 

394

415 

386 

351 

306 

278

258 

236 

216 

203

192

172 

155 

144 

132 

129

124 

121 

115 

110 

106

103 

102 

101 

100 

99 

97

Aug.

96 

95 

92

90 

90

89 

88 

89 

89 

113

99 

93 

87 

86 

84

82 

81 

81 

97 

85

81 

85 

92 

86 

84

84 

82 

82 

83 

81 

81

Sept.

79 

78 

77 

76 

77

76 

76 

76 

75 

74

74 

74 

72 

72 

72

73 

76 

86 

81 

79

77 

76 

76 

76 

76

76 

76 

76 

74 

74

 Runoff in Mean acre-feet

144 8,860 

156 9,300 

115 7,090

280 202,400

1,169 71,880 

366 21,050 

314 19,300 

695 41,360 

1,201 73,820 

1,235 73,480 

222 13,670 

88.0 5,410 

76.0 4,520

482 349,700

n. 4 (12 p.m.) 2,100 sea. -ft.; Jan. 8 (4 a.m.) 7,290 

.; May 17 (11:30 a.m.) 1,590 sec. -ft.; May 27 

) 2,260 sec. -ft.
KLAMATH RIVER BASIN

Salmon River at Somesbar, Calif.

Location.- Water-stage recorder, lat. 41°23', long. 123°28', in NW^- sec. 2, T. 11 N. , R. 

6 K., 0.5 mile east of Somesbar post office and 1.5 miles upstream from mouth. Altitude of gage, about 500 feet (from topographic map).

Drainage area.- 737 square miles.

Records available.- September 1911 to September 1915, October 1927 to September 1948.

Average discharge.- 22 years (1911-13, 1927-29, 1930-48), 1,539 second-feet.

Extremes.- Maximum discharge.during year, 29,500 second-feet Jan. 7 (gage height, 15.68 

feet); minimum, 114 second-feet Oct. 6.

1927-48: Maximum discharge, 29,900 second-feet Dec. 28, 1945 (gage height, 15.82 

feet), from rating curve extended above 15,000 second-feet; minimum, 70 second-feet 

Aug. 25, Sept. 4, 5, 1931.

Remarks.- Records good. No storage or large diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

18

19

20

21

22

23

24

25

26

27

29

30

31

Oct.

121

121

121

117

117

117

136

215

350

670

666

380

298

272

1,150

6,420

1,860

996

719

936

1,230

840

675

575

512

467

432

719

1,040

763

Nov.

1,O4O

1,1*

9

1,01

O

2

0

996

840

7E

6£

62

2

6

0

566

548

s:

s:

52

 d

2

1

642

718

61

57

52

1

5

9

512

476

4<

43

42

9

2

4

416

4

4-!

44

4C

4C

-

7

4

Dec.

503

458

440

440

408

392

376

392

368

360

360

360

352

408

424

384

449

476

566

557

548

575

530

503

476

476

485

763

741

642

602

Jan.

785

4,920

3,410

7,230

6,390

17,300

22,800

11,500

6,980

4,920

3,810

3,120

2,680

2,370

2,120

1,940

1,790

1,660

1,550

1,440

1,360

1,300

1,260

1,200

1,130

1,070

1,030

995

962

940

896

Feb.

874

830

798

820

788

767

725

841

907

820

746

725

725

725

1,120

1,260

1,310

1,400

1,440

1,330

2,310

6,660

4,770

3,350

2,720

2,470

2,280

2,O9O

1,880

_

-

Month

December. ........

Calendar year 1947 ......................

March. ...........

May. .............

July. ............

September. .......

Water year 1947 48 ......................

Peak discharge

Mar.

1,730

1,640

1,520

1,440

1,430

1,360

1,300

1,330

1,330

1,290

1,250

1,260

1,270

1,300

1,250

1,330

1,330

1,330

1,300

1,250

1,210

1,520

2,150

2,200

2,000

1,790

1,800

1,910

1,960

1,970

2,000

Apr.

2,120

2,420

2,280

2,170

2,120

2,080

1,970

1,940

2,150

2,340

2,290

2,180

2,210

2,530

4,540

5,400

5,040

4,390

3,970

4,030

4,710

4,940

4,540

4,120

4,120

3,750

3,450

3,260

2,940

2,730

-

Secondfoot-days

14,814

375,458

7,187

624,210

May

2,580

2,490

2,840

3,83O

3,690

4,200

4,330

3,650

3,240

3,000

3,000

3,200

3,350

3,090

3,160

3,970

4,850

3,930

3,370

3,030

3,030

3,180

3,870

4,960

5,440

5,570

5,750

4,640

3,990

3,690

3,550

Maximum

763

6,930

347

22,800

June

3,750

4,66O

4,940

4,330

4,710

5,350

4,730

4,730

4,710

4,830

4,240

3,750

3,470

3,090

2,800

2,680

2,500

2,310

2,180

2,630

2,680

2,180

1,980

1,970

1,920

1,820

1,800

1,800

1,730

1,660

-

Minimum

352

117

188

117

July

,480

,350

,250

,160

,330

,440

,150

1,030

973

951

940

885

852

809

788

756

746

715

675

635

606

587

558

540

512

503

485

467

449

432

416

Aug.

408

392

376

368

354

347

334

328

328

322

315

309

302

296

296

291

291

285

280

274

269

269

291

285

274

264

253

247

242

237

237

Mean

1,029

240

1,705

Sept.

237

233

224

£24

219

214

210

205

201

196

196

192

188

188

192

210

269

296

291

253

237

247

309

296

2 SO

269

253

247

Runoff in 

acre-feet

744,800

14,260

1,238,000

base, 5,900 sec. -ft.).- Oct. 16 (8 a.m.) 9,290 sec. -ft.; Jan. 2 (l p.m.) 5,950

7,700 sec.-ft.; May 27(l a.nu eOcsec . -ft.; j

(10:30 a.m.) 29,500 sec.-ft.; Feb. 22 (11 a.m.) 

6 (1:30 a.m.) 6,520 sec.-ft.
435

Trinity Ri/er at Lewiston, Calif.

Location - Water-stage recorder, lat . 40°42', long. 122°48', in NE£ sec. 19, T. 33 H., 

FT b K . , at highway bridge at Lewiston, 0.8 mile downstream from Deadwood Creek. 

Datum of gage is 1,794.10 feet above mean sea level, datum of 1929.

Drainage area.- 724 square miles.

Records available.- August 1911 to September 1948.

Average discharge.- 37 years, 1,532 second-feet.

Extremes.- Maximum discharge during year, 39,700 second-feet Jan. 7 (gage height, 21.1 

feet) ; minimum, 94 second-feet Oct. 2.

1911-48: Maximum discharge , 40,300 second-feet Feb. 28, 1940 (gage height, 20.8 

feet), from rating cu ve extended above 13,000 second-feet; minimum, 23 second-feet 

July 30, 1924.

Remarks . - Records excellent. Diversions above station for irrigation, power, and placer 

mining.

les, water year 1947-48 (gage height, 

and discharge, In second-feet)

St. 1 to Jan. 7 to Sept. 30

4.3 

4.6 

4.9

5.2 

5.5 

5.8 

6.2 

6.6

102

133

400

527

665

10,200

13,000

16,000

19,400

23,100

31,000

Discharge, in second-feet, water year October 1947 to September 1948

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

2fi

27

Zfl

?9

30

31

Oct.

106

110

112

111

110

109

113

159

284

900

824

508

419

379

953

7,550

2,300

1,250

956

908

1,100

900

772

662

616

560

521

540

1,020

1,200

964

Nov.

1,060

1,230

1,040

960

896

808

732

686

644

598

570

544

517

514

537

544

505

492

469

444

428

409

388

388

388

394

416

419

412

406

-

Dec,

444

441

412

412

388

370

362

356

348

336

331

331

325

320

320

314

336

345

339

441

540

648

564

505

469

450

444

521

527

4-79

450

Jan.

492

492

630

1,900

4,350

19,200

30,700

12,000

6,460

4,260

3,220

2,620

2,240

1,970

1,780

1,630

1,500

1,390

1,300

1,200

1,130

1,080

1,050

1,030

1,000

938

880

856

826

808

775

Feb.

750

713

671

691

687

663

613

651

667

639

601

584

598

590

651

760

750

775

850

814

802

1,240

1,320

1,130

1,040

1,010

994

1,000

938

_

-

Month

December. ................................ .

Calendar year 1347 ......................

April ................................. ....

May. .......................................

July.. .....................................

September. .................................

Water year 1947 48 ......................

Mar.

892

862

826

785

770

755

731

731

750

718

695

691

765

755

726

785

814

808

820

785

770

862

1,610

1,710

1,550

1,340

1,260

1,320

1,410

1,510

1,550

Apr.

1,780

2,170

2,330

2,110

2,050

1,910

1,750

1,720

1,970

2,210

2,120

1,970

1,910

4,660

9,600

9,120

8,010

6,090

5,170

4,980

5,360

4,680

3,940

3,480

3,530

3,360

3,140

3,330

3,210

3,040

-

Secondfoot-days

12,868

377,107

109,707

6,728

607,698

Peak discharge (base, 5,200 sec. -ft.).- Oct. 16 (8 a.

May

3,060

2,970

3,100

3,710

4,030

5,210

5,440

4,130

3,550

3,210

3,320

3,690

3,720

3,680

3,710

4,590

5,550

4,520

3,600

3,100

3,060

3,320

4,160

5,470

6,520

6,830

6,960

5,040

3,960

3,660

3,330

Maximum

648

7,550

430

30,700

n.) 11,600

June

3,500

4,380

5,440

6,030

6,300

7,020

5,710

5,340

5,320

6,260

5,950

4,560

4,220

3,680

3,220

3,000

2,730

2,500

2,320

2,510

2,550

2,110

1,910

1,870

1,800

1,680

1,630

1,590

1,520

1,440

-

Minimum

314

ioe

o g y£

15"

106

July

1,290

1,200

1,230

1,050

1,070

1,240

1,020

924

868

838

802

755

726

695

671

643

623

601

580

556

533

518

501

484

470

453

440

421

398

385

378

Aug.

365

360

348

334

331

317

312

305

303

299

299

290

280

275

269

256

252

252

254

250

246

240

263

275

263

250

237

227

220

218

212

Mean

415

1,033

3 339

224

1,660

Sept.

207

202

195

191

188

184

179

178

176

173

166

163

160

160

157

160

207

430

405

308

271

248

250

267

269

263

254

246

240

231

-

Runoff in 

acre feet

25,520

748,000

13,340

1,205,000

5 ec.-ft.; Jan. 7 (11 a.m. tc 12 m.

39,700 sec.-ft.; Apr. 15 (5 

6,170 sec.-ft.; May 27 (2 a. 

8,080 sec.-ft.
436 KLAMATH RIVER BASIN

Trinity River near Douglas City, Calif.

Location.- Water-stage recorder, lat. 40°40' , long. 122°59', in Sw£ sec. 34, T. 33 N.

 H IITW 800 feet downstream from Browns Creek and 2.6 miles northwest of Douglas 

City. Datum of gage is 1,520.89 feet above mean sea level (levels by Bureau of Reclamatijn).

Drainage area.- 1,017 square miles.

Records available.- April 1944 to September 1948.

Extremes.- Maximum discharge during year, 41,800 second-feet Jan. 7 (gage height, 30.00

 feet), from rating curve extended above 9,100 second-feet by logarithmic plotting; 

minimum, 105 second-feet Oct. 3.

1944-48- Maximum discharge, that of Jan. 7, 1948; minimum, 93 second-feet Sept. 6, 

1947.

Remarks.- Records good except those for period of doubtful gage-height record, which are

 rair. Diversions above station for irrigation, power, an<1 placer mining.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

b

6

7

a

9

10

11

12

13

14

15

16

IV

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

119

119

121

122

122

121

127

146

225

739

894

573

429

385

417

8,020

2,990

1,490

1,050

876

1,200

964

808

712

634

578

538

538

947

1,390

1,070

Nov.

1,040

1,390

1,140

1,000

938

840

764

708

668

623

588

564

538

529

554

571

538

516

500

478

459

441

420

423

420

420

435

444

441

435

-

Dec.

447

471

441

435

423

405

399

387

384

370

364

367

358

356

356

350

367

384

378

432

564

657

605

548

500

478

474

510

554

516

474

Jan.

522

595

700

1,660

4,700

18,400

33,300

17,300

7,950

4,880

3,530

2,780

2,380

2,090

1,880

1,740

1,610

1,500

1,400

1,300

1,240

1,200

1,160

1,140

1,120

1,060

985

960

941

914

892

Feb.

864

833

784

792

797

770

742

750

792

758

698

682

702

694

762

918

900

923

990

955

950

1,400

1,480

1,280

1,200

1,160

1,140

1,140

1,090

-

Month

December ...................................

Calendar year 1947 ......................

September. .................................

Water year 1947-48 ......................

Mar.

1,040

1,000

960

918

905

892

864

874

896

851

824

815

905

896

869

955

990

970

975

941

918

1,110

2,040

2,070

1,840

1,590

1,470

1,500

1,610

1,700

1,760

Apr.

1,860

2,190

2,590

2,380

2,320

2,170

1,960

1,960

2,280

2,550

2,460

2,260

2,210

6,050

11,700

10,700

9,180

7,080

6,0.10

5,740

6,220

5,480

4,710

4,110

4,070

3,880

3,680

3,850

3,830

3,660

-

Secondfoot-days

13,754

416,425

7,569

675,357

Pe-tk discharge (base, 5,900 sec. -ft.).- Oct. 16 (11 a

May

3,710

3,600

3,640

4,250

4,500

5,550

6,140

5,090

4,150

3,760

3,690

3,960

4,120

4,040

4,010

4,610

5,870

5,140

4,120

3,560

3,340

3,470

4,140

5,330

6,710

7,230

7,710

5,850

4,420

4,110

3,700

Maximum

8,020

657

8,870

474

33,300

June

3,810

4,430

5,740

6,140

6,540

7,730

6,160

5,680

5,720

6,590

6,470

4,910

4,570

3,980

3,510

3,260

2,920

2,660

2,500

2,700

2,680

2,240

2,040

2,000

1,930

1,790

1,710

1,680

1,600

1,540

-

Minimum

119

350

119

180

119

July

1,410

1,300

1,340

1,190

1,150

1,380

1,160

1,060

992

956

920

880

836

801

771

736

714

687

657

625

596

571

549

528

510

497

474

458

436 -

416

404

Aug.

391

379

367

354

343

333

322

315

312

307

307

304

296

289

284

279

272

269

269

269

262

260

272

286

284

267

255

250

248 '

243

240

Mean

444

1,141

252

1,845

Sept.

d235

d230

d225

d220

d215

d210

d205

d205

d205

d200

d!95

d!90

d!85

d!85

d!80

3205

227

302

474

404

330

291

274

281

291

294

289

281

274

267

-

Runoff in 

acre-feet

27,280

826,000

49 590

15,010

1,340,000

m.) 13,000 sec. -ft.; Jan. 7 (3 p.m.) 41,800

15 (3:30 a.m.) 12,200

station at Lewiston.
KLAMATH RIVER BASIN 437 

Trinity River near Hoopa, Calif.

Location.- Water-stage recorder, lat. 41° 0?', long. 123°39' , in Sfii sec. 31 T 8 N R 

S-,n«L0rV ?PS Indlan Reservation, 0.5 mile downstream from Campbell Creek and 2 miles 

southeast of Hoopa. Altitude of gage, about 315 feet (from river-profile map).

Mcordsavailable^- October 1931 to September 1948. October 1911 to January 1914 and 

wovemoer lyib To August 1918 at site at Hoopa, 2 miles downstream.

Average discharge.- 19 years (1911-13, 1931-48), 5,198 second-feet.

Extreme s. _- Maximum discharge during year, 73,000 second-feet probably Jan. 8 (gage height

ho- Jeeo OI]i PfaK- SLage indicator-); mlninun 288 second-feet Oct. 1, 2, 3 C (far- neignt , 6 . /y jee t ) . '~~ '- "

1911-14, 1916-18, 1931-48: Maximum discharge, 124,000 second-feet Feb 28, 1940 

(gage height, 31.2 feet), from rating curve extended above 60,000 second-feet- minimum, 162 second-feet Oct. 4, 1931.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

lair. Small diversions above station for mining and irrigation.

tatle, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

2.7 270 4.7 1,010 11 12,300 

2.8 290 5.3 1,400 13 18,600 

3.0 340 6.0 2,000 15 26,300 

3.2 390 6.6 2,620 17 35,300 

3.B 480 7.4 3,740 19 45,000 

3.8 585 8.0 4,800 21 56,200 

4.2 750 9.0 7,000 23 68,200

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

290 

288 

290 

292 

290

288 

325 

378 

441 

806

1,780 

1,510 

1,090 

894 

938

9,980 

8,890 

3,920 

2,540 

2,090

2,520 

2,610 

2,110 

1,770 

1,540

1,360 

1,260 

1,200 

1,400 

2,730 

2,870

Nov.

2,540 

3,140 

3,020 

2,620 

2,500

2,250 

2,020 

1,820 

1,680 

1,560

1,460 

1,380 

1,320 

1,300 

1,390

1,540 

1,460 

1,360 

1,300 

1,240

1,190 

1,140 

1,100 

1,050 

1,030

1,020 

1,030 

1,030 

1,030 

1,020

Dec.

,080 

,080 

,0.80 

,050 

,020

982 

966 

977 

944 

922

916 

911 

911 

944

966

938 

1,060 

1,200 

1,320 

1,340

1,410 

1,730 

1,780 

1,700 

1,600

1,500 

1,500 

1,550 

1,600 

1,700 

1,600

Jan.

1,500 

1,700 

1,900 

2,500 

9,000

15,000 

50,000 

65,000 

30,000 

15,600

11,000 

8,620 

7,220 

6,280 

5,620

5,160 

4,700 

4,380 

4,100 

3,840

3,540 

3,410 

3,280 

3,140 

3,040

2,900 

2,740 

2,610 

2,530 

2,490 

2,420

Feb.

2,320 

2,270 

2,170 

2,140 

2,160

2,100 

2,030 

2,140 

2,420 

2,380

2,160 

2,000 

1,950 

1,980 

2,360

3,180 

3,530 

3,650 

3,870 

3,700

4,530 

9,570 

9,320 

7,300 

6,100

5,420 

5,000 

4,800 

4,470

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hay

June 

July. 

Augu 

Sept

Ha

mber. ..................................

lendar year 1947 

ary

1. .....................................

ember ..................................

ter year 1947 48 ......................

Mar.

4,150

3,900 

3,700 

3,520 

3,400

3,350 

3,210 

3,290 

3,590 

3,470

3,340 

3,230 

3,220 

3,400 

3,420

3,520 

3,790 

3,840 

3,840 

3,770

3,620 

4,030 

7,380 

8,580 

8,020

6,980 

6,470 

6,620 

7,200 

7,580 

7,500

Apr.

7,380 

7,750 

8,350 

8,080 

8,180

8,320 

7,700 

7,350 

8,450 

9,950

10,200 

9,500 

9,020 

11,400 

29,200

31,000 

26,800 

22,300 

18 , 300 

16,300

16,500 

19,500 

18,200 

15,800 

14,500

13,300 

12,200 

12,000 

11,300 

10,700

Secondfoot-days

58,690 

47,540 

38,277

1,065,970

285,220 

107,020 

144,930 

409,530 

321,340 

222,270 

65,050 

24,503 

19,390

1.743.760

Peak discharge (base, 21,000 sec. -ft.).- Jan 8 (time

May

10,300 

1O,000 

10,200 

11,600 

11,800

12,700 

13,500 

12,600 

10,900 

9,980

9,500 

9,680 

9,880 

9,480 

9,450

9,750 

11,700 

10,900 

9,500 

8,580

8,020 

7,980 

8,550 

9,900 

11,300

12,100 

3:2 , 300 

11,400 

9,850 

9,220 

8,720

Maximum

9,980 

3,140 

1,780

26,700

65,000 

9,570 

8,580 

31,000 

13,500 

12,400 

3,580 

1,080 

1,060

65.000

June

8,350 

8,750 

10,100 

9,950 

10,800

12,400 

11,000 

10,000 

9,950 

10,100

11,900 

9,680 

8,800 

8,100 

7,300

6,760 

6,350 

5,910 

5,510 

5,470

5,840 

5,400 

4,800 

4,550 

4,440

4,26C 

4,080 

4,040 

3,920 

3,760

Minimum

288 

1,020 

911

288

1,500 

1,950 

3,210 

7,350 

7,980 

3,760 

1,110 

597 '444

288

July

3,580 

3,320 

3,120 

3,070 

2,930

3,160 

3,110 

2,700 

2,530 

2,430

2,370 

2,290 

" 2,190 

2,120 

2,060

1,990 

1,920 

1,860 

1,780 

1,690

1,610 

1,540 

1,500 

1,450 

1,380

1,330 

1,290 

1,260 

1,210 

1,150 

1,110

Aug.

1,08O 

1,060 

1,020 

994 

960

938 

900 

872 

856 

850

840 

825 

805 

782 

764

750 

736 

718 

710 

710

697 

689 

697 

718 

718

697 

661 

637 

617 

605 

597

Mean

1,893 

1,585 

1,235

2,920

9,201 

3,690

4,675 

13,650 

10,370 

7,409 

2,098 

790 

646

4,764

unknown) 73,000 see. -ft.; Apr. 15

Sept.

589 

578 

560 

550 

543

532 

522 

512 

498 

487

474 

465 

453 

447 

444

487 

661 

835 

1,030 

1,060

867 

772 

772 

820 

815

772 

741 

714 

701 

689

Runoff in 

acre-feet

116,400 

94,290 

75,920

2,114,000

565,700 

212,300 

287,500 

812,300 

637,400 

440,900 

129,000 

4b,600 

38,460

3,459,000

(6- to 7 p.ra

Trinity

889419 O - 50 - 29
438 SMITH RIVER BASIN

Smith River near Crescent City, Calif.

Location.- Water-stage recorder, lat. 41°47' long. 124°04', in SW£ sec. 10, T. 16 N., R. 

IK., 0.5 mile downstream from South Fork and 9 miles east of Crescent City.

Drainage area.- 613 square miles.

Records available.- October 1931 to September 1948.

Average discharge.- 16 years (1931-37, 1938-48), 3,361 second-feet.

Extremes.- Maximum discharge during year, 83,100 second-feet Jan. 6 (gage height, 29.6 

feet), from rating curve extended above 24,000 second-feet by logarithmic plotting of 

station and cableway ratings; minimum, 265 second-feet Sept. 12-14 (gage height, 3.82 

feet).

1931-48: Maximum discharge, 123,000 second-feet Dec. 28, 1945 (gage height, 35.6 

feet), from rating curve extended above 24,000 second-feet by logarithmic plotting of 

station and cableway ratings; minimum, 168 second-feet Oct. 21, 1931.

Remarks.- Records excellent. No storage or diversion.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1-16 Oct. 17 to Sept. 30

3 -6 278 4.9 637 8.5 3,180 3.8 260 5.7 975 13.0

4-0 332 5.4 85O 9.5 4,300 t

4-1 361 6.0 1,170 ll.o 6,300 4

4.3 423 6.7 1,610 4

4.6 525 7.5 2,230 4

Note.- Same as following table above

11.0 feet.

.0 310 6.5 1 430 15.0

.2 367 7.5 2 150 18.0

.5 463 8.5 3 080 21.0

.8 575 9.5 4 210 24.0

>.2 740 11.0 6 300 28.0

9,460

13,700

22,800

35,000

50,000

73,500

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

313

316

316

310

302

297

318

436

1,660

2,580

2,080

1,190

855

703

12,700

26,900

8,110

5,000

3,620

11,100

7,340

4,770

3,730

3,030

2,540

2,250

2,070

2,480

5,590

6,750

4,420

Nov.

5,530

4,610

3,740

3,560

3,340

3,030

2,730

2,480

2,260

2,060

1,910

1,770

1,780

1,710

2,760

3,490

2,760

2,360

2,090

1,890

1,740

1,610

1,500

1,400

1,330

1,260

1,210

1,150

1,110

1,190

-

Dec.

2,230

1,820

1,700

1,720

1,600

1,510

1,510

1,780

1,800

1,820

1,880

1,880

1,850

3,020

2,820

2,360

3,310

4,170

5,140

3,920

3,510

3,620

3,180

2,730

2,410

2,150

2,090

3,140

3,560

3,050

2,730

Jan.

7,780

36,000

1'4,200

31,600

16,800

71,100

58,400

24,400

13,800

9,640

7,580

6,220

5,280

4,550

4 .020

3,580

3,240

2,950

2,720

2,500

2,350

2,2lO

2,070

1,970

1,880

1,800

1,720

1,660

1,600

1,600

1,510

Feb.

1,460

1,410

1,350

1,420

1,350

1,290

1,230

2,850

5,820

4,340

3,130

2,560

2,270

2,110

7,140

7,650

6,980

8,420

6,980

5,250

24,700

35,900

15,300

9,320

6,980

6,220

5,500

5,030

4,470

_

-

Month

October ...................................

November ......................... ... .....

December ...................................

Calendar year 1947 ......................

January ....................................

February. ..................................

March. ............................... .....

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1947-48 ......................

Mar.

4,070

3,910

3,580

3,250

3,320

3,660

3,400

3,380

3,620

3,440

3,140

2,980

3,040

3,620

3,970

5,690

6,270

4,940

4,520

4,090

4,030

9,510

8,590

7,720

7,050

6,080

5,460

5,340

5,140

5,070

4,830

Apr.

4

5

5

5

6

6

5

5

8

10

8

6

5

8

19

13,

16,

13,

9,

8,

9,

17,

16,

11,

9,

7,

6,

5,

4,

5,

Secondfoot-days

124,076

69 , 360

80,010

951,336

346,730

188,430

146,710

267,370

148,770

51,915

21,189

11,958

9,776

1,466,294

420

000

310

700

900

640

740

350

930

100

270

520

700

340

100

500

100

800

820

210

860

100

300

000

570

800

570

700

960

060

-

May

4,930

4,470

7,120

8,730

6,480

6,090

6,300

6,940

6,030

5,180

4,630

4,730

5,220

4,730

4,340

4,960

6,100

5,140

4,470

3,930

3,600

3,430

3,560

3,780

3,580

3,310

3,180

3,060

3,770

3,700

3,280

Maximum

26,900

5,530

5,140

31,000

71,100

35,900

9,510

19,100

8,730

3,080

1,060

463

575

71,100

June

3,040

3,080

2,980

2,590

2,500

2,570

2,370

2,260

2,150

2,070

1,990

1,830

1,710

1,600

1,530

1,460

1,410

1,370

1,330

1,340

1,310

1,220

1,170

1,110

1,060

1,030

1,000

975

945

915

-

Minimum

297

1,110

1,510

297

1,510

1,230

2,980

4,420

3,06.0

915

470

315

265

265

July

890

857

839

830

857

1,060

985

866

812

785

767

744

722

695

667

647

623

615

603

583

567

563

547

543

535

524

517

503

492

481

470

Aug.

463

4

4

4

53

43

40

430

420

4

4

4

11

04

11

417

404

3

3

3

95

39

79

376

373

3

3

3

73

86

92

370

361

3

3

3

67

98

73

361

343

3

3

3

3

37

32

24

18

315

Mean

4,002

2 312

2^581

2,606

11,180

6,498

4,733

8,912

4,799

1,730

684

386

326

4,006

Sept.

315

313

310

305

297

289

284

282

279

279

274

270

265

232

313

329

373

326

305

292

289

355

575

555

424

352

326

313

305

300

-

Runoff in 

acre-feet

246,100

137,600

158,700

1,887,000

687,700

373,700

291,000

530,300

295,100

103,000

42,030

23j720

19,390

2,908,000
Measurements of stream flow in the Pacific slope basins in California made at points 

other than gaging stations are given in the following table:

ellaneous discharge measurements In the Pacific slope basins In California during 

water year October 1947 to September 1948

STREAMS SOUTH OP SALINAS RIVER BASIN 

Tla Juana River at Boundary at San Ysldro, Calif.

Date

Nov. 3

Dec. 2

15

Jan. 2

Discharge 

(sec. -ft.)

7.6

32

14

11

Date

Jan. 19 

Feb. 3

19

Mar. 2

Apr. 1

Discharge 

(sec. -ft.)

4.38

4.16

4.16

6.5

Date

May 3

13

June 10

July 15

Discharge 

(sec. -ft.)

2.65 

2.15

1.71

1.30

1.71

Date

Aug. 4

16

Sept. 3

21

Discharge 

(sec. -ft. )

1.46

1.29

1.45

Boulder Creek below Cuyamaca Dam, Calif.

Apr. 16 *32 Apr . 16 46 11 Apr. 16 56

Two discharge measurements, both at 32 second-feet, made on this day.

Escondldo Creek at Rancho Santa Fe, Calif. 

Jan. 7, 93 second-feet

Escondido Canal at intake,near Rincon, Calif.

Apr. 22 60 Apr. 22

Arroyo Seco at Nigger Canyon, Calif.

0.056 Apr. 21 0.33

flote.- Measurements furnished by Santa Margarita Ranch (IT. S. Navy) and Pauba Ranch.

Las Flores Creek 0.9 mile below confluence of Las Pulgas and Piedra de Lombre Creeks, near

Oceanslde, Calif.

Oct. 7 

Nov. 4 

Dec. 9

1.03 

1.02 

1.03

Jan. 13 

Feb. 12 

Mar. 23

1.19

1.05 

1.07

Apr. 27 

June 29 

July 27

0.91 

.93 

.76

Sept. 2 0.81

Note.- Measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

San Mateo Creek, near San Clemente, Calif.

Oct. 7, 0.011 second-foot 

Note.- Measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

San Juan Mutual Water Co. 's diversion, near San Juan Capistrano, Calif.

Oct. 7

Nov. 4

Dec. 9

2.61

2.80

3.11

Jan. 13

Feb. 12

Mar. 23

2.70

3.65

2.64

Apr. 27

June 29

July 27

2.26

.64

.56

Aug. 17

Sept. 2

0.10

.23

Note.- Measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

Santa Ana River at Yorba Bridge, near Yorba, Calif.

Dec. 10

12

22

24

26

29

31

Jan. 2

5

9

8.6

4.9

27

32

3.9

4.0

8.7

16

1.2

0

Jan. 21

23

Feb. 4

6

9

13

18

25

Mar. 1

3

0

t.5

0

221

79

42

38

34

16

0

Mar. 5

15

17

19

22

24

25

29

31

Apr. 2

0

t4.0

53

3.0

19

tl.O

167

68

74

19

Apr. 4

5

7

9

12

14

16

19

191.

161

146

132

95

38

32

5.9

t Estimated.

Note . - Measurements furnished by Orange County Flood Control District.

Santa Ana River at Jefferson Street Bridge, near Atwood, Calif.

Dec. 5

10

Trace

0

Feb. 6

13

26

0

Mar. 25

29

6.7

2.2

Apr. Z.

4 \

tl.O

21

t Estimated.

Note.- Measurements furnished by Orange County Flood Control District.

Santa Ana River at bridge on Anahelm-Ollve road, near Olive, Calif.

Feb. 6

Mar. 25

3.1

.9

Mar. 29

Apr. 2

tO. 3

0

t Estimated.

Apr. 4

5

8.6

t2.0

Note.- Measurements furnished by Orange County Flood Control District.

Rising Tteter about 500 feet east of Warm Creek at Colton Avenue, near Colton, Calif,

"Dec. 12

30

Jan. 9

23

30

tO. 05

.30

0

0

.14

Feb. 2

5

13

27

Mar. 5

0.35

3.96

1.63

2.11

.65

Mar. 12

16

19

25

Apr. 6

0.16

.40

.52

.89

1.14

Apr. 9

16

0.43

0

t Estimated.
discharge measurements in the Pacific 

water year October 1947 to Septembe

slope Basins in California during 

1948--Continued

STREAMS SOUTH OF SALIHAS RIVER BASIN--Continu 

Day Creek diversion near Etiwanda, Calif.

Day

Oct. 7

22

Nov. 4

Dec. 3

15

30

Discharge 

(sec. -ft. )

2.36

2.30

2.20

3.05

3.05

2.78

Day

Jan. 12

26

Feb. 9

24

Mar. 8

22

Discharge 

(sec. -ft. )

2.68

2.51

2.35

3.56

2 . 58

3.87

Day

Apr. 19

May 3

25

June 16

29

July 12

Discharge 

(sec. -ft.)

3.68

2.13

2.25

2.20

1.66

1.45

Day

July 27

Aug. 16

30

Sept. 17

Discharge 

(sec. -ft. )

1.13

1.17

1.03

1.13

ersion from effluent of Riverside Sewage T 

on Santa Ana River at Riverside

eatment Plant bypassing gage 

Narrows, Calif.

Apr. 12

20

26

May 4

6.1

1.69

5.7

2.30

May 10

18

24

June 1

2.41

2.44

1.10

.73

June 8

15

21

28

1.03

1.01

1.53

0

July 7

13

0

0

Los Angeles River below Sepulveda Dam, Calif.

NOV. 21

Dec. 3

12

5.9

6.4

6.2

Dec. 30

Jan. 8

30

6.5

50

55

Feb. 11

26

Mar. 10

54

11

6.7

Apr. 7

21

6.2

6.3

Matilija Creek, 1.5 miles above gaging station above reservoir, near Matilija, Calif.

July 12 

27

1.65 

1.23

Aug. 9 

23

1.01 

.84

Sept. 7 

20

0.86 || 

.80

Tecolote Canyon Creek near Elwood. Calif.

Dec. 5

Jan. 9

Feb. 18

0.045

.13

.13

Mar. 18

Apr. 15

May 14

0.21

.27

.061

June 11

July 21

Aug. 19

0.061

.011

0

Sept. 15 0

Eagle Canyon Creek near Elwood, Calif.

Dec. 5

Jan. 9

Feb. 18

0

0

0

Mar. 18

Apr. 15

May 14

0

0

0

June 11

July 21

Aug. 19

0

0

0

Sept. 15 0

Dos Pueblos Creek near Naple

Oct. 2

Dec. 5

Jan. 9

0.29

.49

.58

Feb. 18

Mar . 18

Apr. 16

0.67

.47

.64

May 14

June 11

July 21

0.47

.39

.33

Aug. 19

Sept. 15

0.19

.052

Santa Ynez River at Buellton, Calif.

May 11 3. 67 || June 8 0

Santa Ynez River

Oct. 

Nov.

31 

7

0.33 

.38

Nov. 

|| Dec.

13

17

0.42 

.32

July 20 0 || Aug. 17 0

near Buellton, Calif.

May 27 

28

0.16 

0 ||

Santa Ynez River above Salsipuedes Creek, near Lompoc, Calif. 

Oct. 21, 0.04 second-foot

Santa Ynez River at Rucker's Crossing, near Lompoc, Calif. 

Dec. 1, and May 25, no flow

Santa Cota Creek at mouth, near Santa Ynez, Calif.

Oct. 9

Nov. 5

24

2.57

2.81

4.89

Dec. 17

Jan. 21

Mar. 17

5.0

2.17

5.4

Apr. 12

May 10

June 7

4.88

1.31

1.69

July 21

Aug. 17

Sept. 13

1.29

1.68

.60

Alamo Pintado Creek at Santa Ynez River, near Solvang, Calif. 

Sept. 1, 0.20 second-foot

Santa Rosa Creek near Buellton, Calif.

Oct. 9

Dec. 17

Jan. 21

0.22

.31

.16 '

Feb. 16

19

May 16

5.4

.31

.34

Apr. 15

May 13

June 8

0.30

.29

.26

July 20

Aug. 17

Sept. 13

0.29

.23

.25

Salsipuedes Creek at Santa Ynez River, near Lompoc, Calif.

Dec. 17 

May 13

0.52 || June 8 

.36 | July 20

0.16 || Aug. 17 

.049 || Sept. 13

0

0

Cuyama River below Cottonwood Creek, near Guyana, Calif.

Nov. 17

Dec. 23

29

7.6

6.4

8.5

Mar. 3

May 12

June 10

9.5

5.9

2.90

July 19

Aug. 18

Sept. 14

0

2.05

1.86
441

STREAMS SOUTH OF SALINAS RIVER BASIN--Continued 

Cuyama River beloh Gypsum Creek, near Cuyama, Calif.

Date

Nov. 17 

Dec. 23

Discharge 

(sec. -ft. )

3.08 

5.7

Date

May 12 

June 10

Discharge 

(sec. -ft.)

1.82 

.29

Date

June 19 

Aug. 18

Discharge 

(sec. -ft. )

0 

0

Date

Sept. 14

Discharge 

(sec. -ft. )

0

Cuyama River, 1 mile below Huasna River, near Santa Maria, Calif. 

Feb. 17, 7.6 second-feet

Santa Maria River at confluence of Cuyama and Sisquoc Rivers, near Santa Maria, Calif.

Dec. 11

Jan. 22

Feb. 17

0

0

.21

Mar. 15

25

Apr. 2

5.1

6.8

t . 2

Apr. 14

28

July 20

4.92

0

0

t Estimate.

La Brea Creek, 1.1 miles above gaging station, near Sisquoc, Calif.

Aug. 30

Slough at Guadalupe, Calif. 

June 23, 0.70 second-foot

Arroyo Grande 2.5 miles above Harris Bridge, Calif.

July 8 | 5.67 || July IS | 3.51 || Aug. 16 | 2.54 [JAug. 31

SALINAS RIVER BASIN

Salinas River 4 miles upstream from Atascadero, Calif. 

No flow Oct. 1, 29

Salinas River at bridge, near Atascadero, Calif. 

Oct. Z, 1.7 second-feet; Oct. 29, 1.6 second-feet

Salinas River near Templeton, Calif. 

No flow Oct. 8, 22

Salinas River at San Miguel, Calif. 

No flow Oct. 8, 22

Salinas River above Nacimiento River, near San Miguel, Calif. 

No flow Oct. 8, 22

Salinas River at highway bridge at Bradley, Calif. 

Oct. 8, 2.9 second-feet; Oct. 22, 3.5 second-feet

Salinas River at highway bridge at San Ardo, Calif. 

No flow Oct. 8, 22

Salinas River at bridge near San Lucas, Calif. 

No flow Oct. 8, 22

Salinas River at highway bridge at King City, Calif. 

No flow Oct. 8, 23

Salinas River at highway bridge near Soledad, Calif. 

No flow Oct. 9, 23

Estrella Creek at mouth near San Miguel, Calif. 

No flow Oct. 8, 22

Nacimiento River at mouth near San Miguel, Calif. 

No flow Oct. 8, 22

San Antonio River at mouth near Bradley, Calif. 

No flow Oct. 8, 22

MERCED RIVER BASIN

Merced River at former gaging station at Kittridge, Calif. 

Dec. 10, 96 second-feet

Merced River below diversion dam near Snelling, Calif. 

Aug. 19, 102 second-feet

Aug. 19, 1,390 second-feet 

PIT RIVER BASIN

Kosk Creek near Big Bend, Calif. 

May 6, 800 second-feet

TULE LAKE BASIN

Anderson Creek, tributary to Swan lake in NW£SEi sec. 20,

'T. 37 S., R. 10 E., 200 feet east of Red Top Road, Oreg.

Mar. 30, 2.31 second-feet; Apr. 18, 4.28 second-feet
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In the Pacific slope basins in California during 

water year October 1947 to September 1948 Continued

KLAMATH RIVER BASIN

Beaver Creek, tributary to Jenny Creek In SW-J sec. 19, 

T. 38 S. , R. 4 E. , Ij- miles upstream from

Hoxie Creek, Oreg. 

Apr. 20, 67.9 second-feet

Beaver Creek at Bureau of Reclamation Howard Prairie dam site in SWj 

sec. 32, T. 38 S. , R. 4 E. , 5- mile downstream from

Willow Creek, Oreg. 

Apr. 20, 153 second-feet

Bluff Creek half a mile above mouth, in sec. 30, T. 10 N., R. 5 E. , Calif. 

July 17, 103 second-feet; Sept. 26, 5S second-feet

Browns Creek in sec. 13, T. 32 N., R. 10 W, 1,000 feet above road crossing 

near Douglas City, Calif. 

Mar. 12, 17.6 second-feet

North Fork Trinity River at Hobo Gulch Public Camp in sec. 6, T.

35 N., R. 11 W., Calif. 

Sept. 2, 26.1 second-feet

North Fork Trinity River 1,000 feet above confluence with East

Fork, in SE£ sec. 20, T. 34 N., R. 11 W., Calif.

Sept. 1. 29.5 second-feet

East Fork of North Fork Trinity River 500 feet above confluence

with North Fork, in T. 34 N., R. 11 W., Calif.

Sept. 1, 3.8 second-feet

South Fork Trinity River 1,000 feet below bridge at Forest Glen,

Calif. 

Mar. 10, 176 second-feet; Sept. 3, 25.9 second-feet

South Fork Trinity River half a mile above mouth of Hay Fork,

near Hyampon, Calif. 

Mar. 11, 319 second-feet; Aug. 31, 50 second-feet

South Fork Trinity River 1,000 feet above mouth, near

Salyer, Calif. 

Mar. 12, 843 second-feet; Aug. 30, 137 second-feet

Post Creek half a mile above mouth, near Forest Glen, Calif. 

Mar. 10, Z7.3 second-feet

Post Creek 500 feet above mouth 1, near Forest Glen, Calif. 

Sept. 3, 1.4 second-feet

Hay Fork Trinity River below East Fork in sec. 22, T. 31 N., R.

11 W., Calif. 

Mar. 11, 34.3 second-feet

Hay Fork Trinity River at Hay Fork dam site in NE£ sec. 5,

T. 31 N., R. 12 W., Calif.

Mar. 11, 105 second-feet

Hay Fork Trinity River below Hay Fork dam site in sec. 5,

T. 31 N., R. 12 W., Calif.

Aug. 31, 8.6 second-feet

Hay Fork Trinity River half a mile above mouth near Hyampon,

Calif. 

Mar. 11, 148 second-feet; Aug. 31, 28.8 second-feet
"A" Canal at Klamath Falls, Oreg. ...... 424

Accuracy of field data and computed reAgencies other than Geological Survey,

Alameda Creek near Niles, Calif.. 

Alamitos Creek near Edenvale, Calif....

Alamo Creek near Santa Maria, Calif....

Alamo Pintado Creek, Calif., discharge 

measurements of ...... ...........

Alder Creek near Whitehall, Calif. .....

Aliso Creek at El Toro, Calif. .........

Alpine, Calif., Sweetwater River near.. 

American River at Fair Oaks, Calif... .

at Sacramento, Calif. .............

Middle Fork, near Auburn, Calif......

North Fork, at North Fork Dam, Calif. 

at Rattlesnake Bridge, Calif. ......

South Fork, near Camino , Calif.. ....

near Kyburz , Calif ...............

American River Basin, Calif'., gagingstation records in. ...

American River flume near Camino, Calif 

Anderson Creek, Calif., discharge

measurements of ..................

Antelope Creek near Red Bluff, Calif... 

Arlington, Calif., Santa Ana River near 

Arrowhead Springs, Calif., Strawberry 

Creek near ......................

Waterman Canyon Creek near. . . ......

Arroyo Grande at Arroyo Grande, Calif.. 

discharge measurements of ...... . .

Arroyo Seco (Los Angeles River Basin)

near Pasadena, Calif.. .... .....

Arroyo Seco (Salinas River Basin) near 

Soledad, Calif. ............. ....

Arroyo Seco (Santa Margarita River

Basin), Calif., discharge measurements of. ... ....................

Artesia, Calif., Coyote Creek near.....

Ashland, Oreg., Keene Creek Canal near. 

Atascadero Creek near Goleta, Calif-. . . .

Auberry, Calif., Big Sandy Creek near.. 

Auburn, Calif . , Bear River near ........

Middle Fork American River near. .....

Avery, Calif. , Middle Fork Stanislaus 

River near .......................

North Fork Stanislaus River near. ....

Azusa, Calif., Rogers Creek near.. ....

San Gabriel River near. ..............

440

383

47 Bowman Lake near Graniteville, Calif...

22

369

370

371

367

368

377

376

Calif., Merced River at.........

Bakersfield, Calif., Kern River near...

Baldwin Park, Calif., San Gabriel River 

near....... .....................

Ballona Creek near Culver City, Calif..

Battle Creek near Cottonwood, Calif....

Bautista Creek near Hemet, Calif..... .

Bear Creek (tributary to San Joaquin

River) near Lockeford, Calif.....

Bear Creek (tributary to South Fork San 

Joaquin River) near Vermilion 

Valley, Calif. ...................

Bear River (Feather River Bajin) near

Auburn, Calif. ........... . .....

near Wheatland, Calif................

Bear River (Mokelumhe River Basin) at 

Pardoe Camp, Calif......... .....

Bear River Canal near Colfax, Calif....

Beaver Creek, Oreg., discharge measurements of........... ...... ......

Bidwell Bar, Calif., Middle Fork

Feather River at. ................

Big Bar, Calif., North Fork Feather

River at.........................

Big Bend, Calif., Pit River at. ........

Big Creek, Calif., Florence Lake near.. 

Huntington Lake near.................

San Joaquin River above..............

Shaver Lake near.....................

387

324

51

123

439

148

237

364

371

270

274

196

323

228

366

346

333

314

224

230

214

233

Big Creek below Huntington Lake, Calif. 

Big Sandy Creek near Auberry, Calif.... 

Big Trees, Calif., San Lorenzo River at.

Bonsall, Calif., San Luis Key River

Borel Canal at Tilley Creek, Calif.....

Boulder Creek at Cuyamaca Reservoir,

near Julian, Calif. ...... ......

discharge measurements of ............

Bowman Lake, Calif., Canyon Creek below

Bowman-Spaulding Canal at intake, Calif.

Branscomb, Calif., South Fork Eel River 

near.... .....................

Brea, Calif., Fullerton Creek near.....

Brea Creek at Fullerton, Calif.........

below Brea Dam, near Fullerton, Calif.

Bridgeville, Calif., Van Duzen River at

Browns Creek, Calif., discharge measurement of...... ........... .......

Buchanan dam site, Calif., Chowchilla

Page 

231 

237 

183

442

38

198

26

439

361

360

362

412

110

109

108

414

442

River at.

Buellton, Calif., La Zaca Creek at.....

Santa Ynez, Calif....................

Butt Creek above Almanor-Butt Creek

tunnel, near Prattville, Calif... 

below Almanor-Eutt Creek tunnel,

near Prattville, Calif...........

Butte City, Calif., Sacramento River at 

Butte Creek near Chico, Calif. .........

Cache Creek at Yolo, Calif.............

near Capay, Calif.......... ........

near Lower Lake, Calif....... .......

North Fork, near Lower Lake, Calif... 

Cajon Creek near Keenbrook, Calif......

Calabasas , Calif., Malibu Creek near... 

Calaveras River.at Jenny Lind, Calif... 

Calaveras River Basin, Calif., gagingstation records in..............281-283

Calpella, Calif., East Fork Russian

River near.. .. ................. 404

Camino, Calif., American River flume

near. .........'................... 387

South Fork American River near....... 377

Camp Bonita, Calif., East Fork San

340

160

154

336

337

306

330

393

392

391

395

78

133

281

Gabriel River near. 

Caap Rincon, Calif., West Fork San

Gabriel River at.

ampbell Creek at Saratoga, Calif......

Camp Creek near Campo, Calif...........

Canby, Calif., Pit River near..........

Canyon Creek below Bowman Lake, Calif.. 

Capay, Calif., Cache Creek near....'....

Carpinteria Creek near Carpinteria,

Calif. ...................... ....

Cascade Canal near Fish Lake, Oreg.....

Chamberlain Slough near El Nido, Calif. 

Cherry Creek near Hetch Hetchy, Calif.. 

Chico, Calif., Butte Creek near........

Chico Creek near.....................

Chico Creek near Chico, Calif.

Chiloquin, Oreg., Sprague River near.. 

Williamson River near ...... ....

Chittenden, Calif., Pajaro River near. 

Chowchilla River at Buchanan dam site, 

Calif. .... .....................

Cisco, Calif., South Fork Yuba River

96

100

189

20

311

361

392

147

423

245

261

330

328

328

422

415

179

244

near.

City Creek near Highland, Calif........ 71-72

City Creek Water Co.'s canal near High-

'' ~ .................... 73

Claremont, Calif., San Antonio Creek 

near...........................

Southern California Edison Co.'s 

conduit near...................

Clear Creek near Igo, Calif..........

443
Clear Lake at Lakeport, Calif.......

Clements, Calif., Mokelumne River near. 

Cliff Camp, Calif., North Pork Kings

River near..... . ...............

Clio, Calif., Kiddle Pork Feather River

near.... .....................

Cloverdale, Calif., Dry Creek near... 

Colby Ran^h, Calif., Tujunga Creek near 

Cold Creek near Mokelumne Peak, Calif.. 

Colfax, Calif., Bear River Canal near.. 

Colgate diversion darn, Calif., North

Pork Yuba River at...............

Colton, Calif., Weeks & Daley Canal

near...... ..... ..........

Warm CreeK near.... ................

Colusa, Calif., Sacramento River at.. 

Colusa and Yolo Basins, Calif., gagingstatioa records in...... .......389-397 Dunneville, Calif., Pacheco Creek near.

Computations, accuracy of results of.

Concow Creek near Yankee Hill, Calif.

Conn Creek near St. Helena, Calif

Contents, definition uf. .. ....:.

Control, definition of...........

Cooperation, record of...........

Copco, Calif., Fall Creek at.....

Klamain River near ................... 419

Corona, Calif., Santa Ana River near... 52,53 

Temescal Creek near.................. 84

Cosgrove Creek near Valley Springs,

Calif.'........................... 282

Cosumnes River at McConnell, Calif..... 299 

at Michigan Ear, Calif............... 298

Cottohwood, Calif., Battle Creek near 321 

Cottoriwood Creek near.............. 322

Cottonwood Creek (Goose Lake Basil)

near-Lakevlew, Oreg.............. 301

Cottonwood Creek (Sacramento River

Basin) near Cottonwood, Calif.... 322

Cottonwood CreeK (San Joaquin River

Basin) nearFriant, Calif........ 239

Cottonwood Creek (Tia Juana River

Basin) above Tecate Creek, near 

Dulzura, Calif. .................. 16

at Barrett Dam, near Dulzura, Calif.. 15 

at Morena Dam, Calif................. 15

Coyote Creek (tributary to San Francisco Bay) near Edenvale, Calif..... 190 

near Madrone, Calif. ................. 190

Coyote Creek Basin, Calif., gagingstation records in. .............. 190

Coyote Creek (tributary to San Gabriel

River) near Arlesia, Calif....... 107

Coyote Creek (tributary to Ventura

River) near Ventura, Calif....... 146

Craftonville, Calif., Mill Creek near.. 

Mill Cree/: power canal 1 near. .......

Mill Cree^ power canals 2 and 3 near-.

Crane Valley Reservoir, Calif., Pacific 

Gas & Electric Co. conduit No. 3 

near.............................

Horth Fork Willow Creek below........

Crescent City, Calif., Smith River near

Crescent Mills, Calif., Indian Creek

near. ............................ 338

Cucamonga Creek near Upland, Calif..... 81

Culver City, Calif., Ballona Creek near 131

Cupertino, Calif., Stevens Creek near.. 184

Cuyama River, Calif., discharge measurements of ....................... .440-441

Dalton Creek near Glendora, Calif......

Data, accuracy of......................

explanation of .......................

Daulton, Calif., Fresno River near.....

Day Creek near Etiwanda, Calif.........

Day Creek diversion, Calif., discharge

measurements of..................

Deer Creek (tributary to Sacramento

River) near Vina, Calif. .........

Deer Creek (tributary to Yuba River)

near Smartville, Calif...........

Delta, Calif., Sacramento River at.....

Devil Canyon Creek near San Bernardino

Calif. ...........................

Don Pedro Reservoir near La Grange,

Calif............................

Dos Palos, Calif., San Joaquin River

near.............................

2-5 

243

327

257

440 

436 

113 

Rio Hondo near....................... 125

Drew Creek near Lakeview, Oreg......... 300

Dry Creek (Mokelumne River Basin) near 

Gait, Calif...................

Dry Creek (Russian River Basin) near 

Cloverdale, Calif.............

Duarte, Ca-lif., Pish Creek near.....

Ducor, Calif., White River near........ 201

Dulzura, Calif., Cottonwood Creek

near ............................. 15,16

Dulzura conduit near. 

Tia Juana River near. 

Dulzura conduit near Dulzura, Calif....

19

17

19

180

Eagle Canyon Creek, Calif., discharge

measurements of..................

East Highlands, Calif., Plunge Creek

near.............................

Eaton Creek near Pasadena, Calif.......

Echo Lake conduit near Vade, Calif.....

440

65 

129 

378 

185 

Coyote Creek near.................... -190

Eel River at Hullville, Calif.......... 408

at Scotia, Calif..................... 410

at Van Ardsdale Dam, near Potter

Valley, Calif.................... 409

South Fork near Branscomb, Calif..... 412

near Miranda, Calif................ 413

Eel River Basin, Calif., gaging-station

records in......................407-414

El Capitan Dam, Calif., San Diego River

at. .............................. 24

El Dorado Canal near Kyburz, Calif..... 382

El Nido, Calif., Chamberlain Slough

-near............................. 245

San Joaquin River near............... 220

El Toro, Calif., Aliso Creek at........ 47

Elsinore, Calif., Elsinore Lake at.....

San Jacinto River near...............

Elsinore Lake at Elsinore, Calif.......

Enterprise, Calif., Palermo Canal at... 

South Pork Feather River at..........

Escondido Canal at intake, near Rincon,

Calif............................

Escondido Creek at Rancho Santa Fe,

Calif., discharge measurement of. 

Estrella Creek, Calif., discharge

measurements of..................

Exchequer, Calif., Lake McClure at...., 

Merced River at.....................

Fair Oaks, Calif., American River at... 

Fall Brook, Calif., Santa Margarita

R iver near.......................

Fall Creek at Copco, Calif .............

Fall River Hills, Calif., Pit River at. 

Falls Creek near Ketch Hetchy, Calif...

439

250

251

369

Middle Fork, at Bidwell Bar, Calif...

below Sloat, Calif.................

near Clio, Calif...................

near Oroville, Calif.................

North Pork, at Big Bar, Calif........

near Prattville, Calif.............

South Fork, at Enterprise, Calif.....

West Branch, near Yankee Hill, Calif.

Pillmore, Calif., Fillmore Irrigation 

Co.'s canal near................

Sespe Creek near....................

Fillmore Irrigation Co.'s canal near 

Fillmore, Calif.................

Fine Gold Creek near Friant, Calif.... 

Fish Creek near Duarte, Calif.

139

138

Pish Lake, Oreg., Cascade Canal near... 423 

Floods, special reports on............. 11

Florence Lake, Calif., South Fork San

Joaquin River near............... 225

near Big CreeK, Calif................ 224

Fontana, Calif., Lytle Creek near...... 75-76

Fontana pipe line. See Lytle Creek

near Fontana.
445

Fort Jones, Calif., Scott River near... 

Foster, Calif., San Vicente Creek at... 

Fourmile Lake Reservoir, Oreg., contents 

of.. .............................

Fremont Ford Bridge, Calif., San

Joaquin River at.................

Fresno River near Daulton, Calif.......

near Knowles, Calif..................

Fresno River Basin, Calif., gagingstation records in..............242

Friant, Calif., Cottonwood Creek near..

Fine Gold Creek near.................

Little Dry Creek near................

Millerton Lake at....................

San Joaquin River below..............

Fullerton, Calif., Brea Creek at.......

Brea Creek near....................

Fullerton Creek at...................

Fullerton Creek at Fullerton, Calif....

below Fullerton Dam, near Brea,

Calif. ...........................

Page -433

27

421

110

Gait, Calif., Dry Creek near.........

Garey, Calif., Sisquoc River near....

Georgetown, Calif., Georgetown ditch

373 

372-

373

375

104

105

148

149

355

406

59

187

164

186

Pilot Creek near ...............

Rubicon River near...................

Georgetown ditch above Pilot Creek,

near Georgetown, Calif. ..........

near Georgetown, Calif...............

Glendora, Calif., Dalton Creek near.. 

Little Dalton Creek near .............

Goleta, Calif., Atascadero Creek near.. 

San Jose Creek near..................

Goodyears Bar, Calif., North Fork Yuba 

River below......................

Goose Lake Basin, Oreg., gaging-station

records in...................... 300'

Graniteville, Calif., Bowman Lake near 

Graton, Calif., Laguna de Santa Rosa

near.............................

Greenspot pipe line near Mentone,

Calif............................

Guadalape, Calif., Los Capitancillos

Creek at.........................

Santa Maria River at.................

Guadalape River at San Jose, Calif.....

Guadalape River Basin, Calif., gagingstation records in..............185'

Guejito Creek at San Pasqual, Calif....

near San Pasqual, Calif..............

Guenoc, Calif. , Putah CreeK near .......

Guerneville, Calif., Russian River at..

Haines Creek near Tujunga, Calif......120-122

Hamilton City, Calif., Stony Creek near 329 

Hansen Dam, Calif., Tujunga Creek below 118 

Harris, Calif., San Antonio Creek at... 161 

Hat Creek near Hat Creek, Calif........ 317

Hayward, Calif., San Lorenzo Creek at.. 192 

Healdsourg, Calif., Russian River near. 402 

Hemet, Calif., Bautista Creek near ...... 85

Hetch Hetchy, Calif., Cherry Creek near 261 

Eleanor Creek near ................... 263

Falls Creek near ..................... 260

He ten Hetchy Reservoir at............ 255

Lake Eleanor near .................... 262

Tuoljmne River near .................. 256

Hetch Hetchy Reservoir at Hetch Hetchy,

Calif............................ 255

Highland, Calif., City Creek near...... 71-72

City Creek Water Co.'s canal near.... . 73

Hoopa, Calif., Trinity River near...... 437

Hopland, Calif., Russian River near.... 401

Hopper Creek near Piru, Calif.......... 136

Huasna River near Santa Maria, Calif... 165 

Hullville, Calif., Eel River at........ 408

Lake Pillsbury at.................... 407

Huntington Lake, Calif., Big Creek

below............................ 231

near Big Creek, Calif................ 230

Huntington-Shaver conduit at outlet,

Calif. ........................'... 234

Hyatt Prairie Reservoir, Oreg., contents of..............'........... 421

Ice House, Calif., South Fork Silver

Creek near....................... 386

Igo, Calif., Clear Creek near.......... 321

Page 

Indian Creek near Crescent Mills,

Calif............................ 338

Isabella, Calif., South Fork Kern River

at............................... 200

Isabella dam site, Calif., Kern River

below............................ 195

Jacksonville, Calif., Woods Creek near. 266

James bypass near San Joaquin, Calif... 241

Jamul Creek near Jamul, Calif.......... 21

Jenny Lind, Calif., Calaveras River at. 281 

Jones Bar, Calif., South Fork Yuba

River at......................... 359

Julian, Calif., Boulder Creek near..... 26

Kaweah River near Three Rivers, Calif.206-207 

North Fork, at Kaweah, Calif......... 208

Keddie, Calif., Spanish Creek at....... 339

Keenbrook, Calif., Cajon Creek near.... 78

Keene Creek near Lincoln, Oreg......... 430

Keene Creek Canal near Ashland, Oreg... 431 

Kelsey Creek near Kelseyville, Calif... 394 

Kelseyville, Calif., Kelsey Creek near. 394 

Kennedy Meadows, Calif., Middle Fork

Stanislaus River at.............. 269

Keno, Oreg., Klamath River at.......... 418

Keno Canal at Klamath Falls, Oreg...... 425

Kerckhoff powerhouse, Calif., San

Joaquin River below..............3, 215

Kern River below Isabella dam site,

Calif............................ 195

near Bakersfield, Calif. ............. 196

near Kernville, Calif............... 193-194

South Pork, at Isabella, Calif....... 200

near Onyx, Calif. .................. 199

Kern River Basin, Calif., gagingstation records in..............193-200

Kern River No. 3 Canal near Kernville,

Calif............................ 197

Kernville, Calif., Kern River near .... 193-194

Kern River No. 3 Canal near.......... 197

Keswick, Calif., Sacramento River at... 304 

Kings River above North Fork, Calif.... 210

at Piedra, Calif..................... 211

North Fork, below Rancheria Creek,

Calif............................ 213

near Cliff Camp, Calif. ............ 212

Kirkwood, Calif., Silver Lake Outlet

near....................... ..... 380

Twin Lakes Outlet near............... 381

Klamath Falls, Oreg., "A" Canal at..... 424

Keno Canal at........................ 425

Link River at........................ 417

Upper Klamath Lake near.............. 416

Klamath River at Keno, Oreg............ 418

at Somesbar, Calif ................... 420

below Fall Creek, near Copco, Calif.. 419 

diversion from, to Lost River near

Olene, Oreg...................... 427

Klamath River Basin, Calif.-Oreg., discharge measurements in........... 442

gaging-station records in...........415-437

smaller reservoirs in................ 421

Knights Ferry, Calif., Oakdale Canal

near. ............................ 280

South San Joaquin Canal near......... 279

Knights Landing, Calif., Sacramento

River at......................... 309

Knowles, Calif., Fresno River near..... 242

Kosk Creek, Calif., discharge measurement of.......................... 441

Kyburz, Calif., El Dorado Canal near... 382 

South Fork American River near....... 376

La Brea Creek, Calif., discharge

measurements of.................. 441

near Sisquoc, Calif.................. 167

La Grange, Calif., Don Pedro Reservoir

near............................. 257

Modesto Canal near ................... 267

Tuolumne River near.................. 258

Turlock Canal near................... 268

La Zaca Creek _at Buellton, Calif....... 160

Laguna de Santa Rosa near Graton, Calif. 406 

Lake Almanor near Prattville, Calif.... 331

Lake Eleanor near Hetch Hetchy, Calif.. 262 

Lake Hodges, Calif., San Dieguito River

_jake McClure at Exchequer, Calif....... 250

Lake Pillsbury at Hullville, Calif..... 407
INDEX

Lakeport, Calif., Clear Lake at........ 390 M

Lakeview, Oreg. , Cottonwood Creek near. 

Drew Creek near ......................

Lancha Plana, Calif., Mokelumne River

at.... ...........................

Las Plores Greek, Calif., discharge

measurements of. .... ..... ...

Lewiston, Calif., Trinity River at.....

Likely, calif., South Fork Pit River

near .............................

Lincoln, Oreg. , Keene Creek near. ......

Link River at Klamath Falls, Oreg. .....

Little Beaver Creek at Pinehurst, Oreg. 

Little Dalton Creek near Glendora,

Calif. ...........................

Little Dry Creek near Friant, Calif,....

Little Santa Anita Creek near Sierra

Madre, Calif. ....................

Little Tujunga Creek near San Fernando,

Calif. ...........................

Lockeford, Calif., Bear Creek near.....

Lompoc , Calif., Salsipuedes Creek near.

Santa Ynez River near. ...... r .. .155,156,157

Long Barn, Calif., South Fork Stanislaus River near. .................

Tuolumne Canal near. .................

Long Beach, Calif., Los Angeles River

at. ..............................

Los Alamitos, Calif., San Gabriel River

near ... ......................

Los Angeles River at Long Beach, Calif. 

at Los Angeles, Calif. ...............

at Sepulveda Dam, Calif. .............

discharge measurements of ............

near Downey, Calif. ..................

Los Angeles River Basin, Calif., gagingstation records in. ........ ... .111-130

Los Banos, Calif., Salt Slough near.... 246

Los Capitancillos Creek at Guadalupe,

Calif. ...........................

Los Gatos Creek below Los Gatos, Calif. 

Los Molinos, Calif., Mill Creek near... 

Lost River diversion canal near Olene,

Oreg. ............................

Lower Lake, Calif., Cache Creek near...

North Fork Cache Creek near. ........ .3, 395

Lytle Creek, east channel of, at San

Bernardino, Calif. ................ 77

near Fontana, Calif. ................. 75-76

McCloud River above Shasta Reservoir,

Calif............................

near McCloud, Calif..................

McConnell, Calif., Cosumnes River at... 

Madrone, Calif., Coyote Creek near.....

Malibu Creek at Crater Camp, near

Calabasas, Calif.................

Marysville, Calif., Yuba River at......

Matilija Creek above reservoir, near

Matilija, Calif. .................

at Matilija, Calif...................

discharge measurements of............

North Fork, at Matilija, Calif.......

Medley Lakes Outlet near Vade, Calif... 

Meeks & Daley Canal near Colton,

Calif............................

Melones powerhouse, Calif., Stanislaus 

River below......................

Melones Reservoir at Melones Dam,

Calif............................

Mendota, Calif., San Joaquin River near 

Mentone, Calif., Greenspot pipe line

near.............................

Mill Creek near............... ......

Santa Ana River near.................

Southern California Edison Co.'s

canal near..... .................

Merced Irrigation District main canal,

Calif., discharge measurement of. 

Merced River at Bagby, Calif...........

at Exchequer, Calif..................

at Happy Isles Bridge, near Yosemite, 

Calif............................

at Pohono Bridge, near Yosemite,

Calif........ ...................

discharge measurements of............

near Stevinson, Calif................

Merced River Basin, Calif., discharge 

measurements in

57,58

441

249

251

247

248

441

252

441

gaging-station records in...........247-254

erced River Slough near Newman,

Calif....................... ...... 254

iesa Grande, Calif., San Luis Rey River

near............................. 35

Santa Ysabel Creek near.............. 28

Michigan Bar, Calif., Cosumnes River at 298 

Middle Tuolumne River at Oakland Recreation Camp, Calif................ 265

Mill Creek (Sacramento River Basin)

near Los Molinos, Calif.......... 325

Creek (Santa Ana River Basin) near 

Craftonville, Calif.............. 60-61

near Mentone, Calif............ ..... 62

Mill Creek power canal 1 near Craftonville, Calif..................... 64

Creek power canals 2 and 3 near 

Craftonville, Calif.............. 63

Millerton Lake at Friant, Calif........ 216

Milton, Calif., Middle Fork Yuba River

at.. ............................. 349

Milton-Bowman tunnel at outlet, Calif.. 353 

anda, Calif., South Fork Eel River

near............................. 413

Mission Creek near Montebello, Calif... 130 

Modesto, Calif., Tuolumne River at..... 259

Modesto Canal near La Grange, Calif.... 267

Mokelumne Peak, Calif., Cold Creek near 292 

Mokelumne River at Lancha Plana, Calif. 288

300 M<

439

435

316

430 Mill

417

429

105

240 Mill

128

119 

284 

161 Mir

276

278

114

100 

114 

112 

HI 

440 

113

187 Mi

188

325

426

391

294

289

287

Middle Fork, at West Point, Calif 

near Clements, Calif................

near Mokelumne Hill, Calif..........

North Fork, below Salt Springs Dam, 

Calif...........................

South Fork, near West Point, Calif.. 

Mokelumne River Basin, Calif., gagingstation records in..............285-299

Mono Creek near Vermilion Valley,

Calif............................

onrovia, Calif., Sawpit Creek near....

Montebello, Calif., Mission Creek near. 

Rio Hondo near.......................

Montecito, Calif., Santa Ynez River

near.............................

Montgomery Creek, Calif., Pit River

near.............................

Morena.Dam, Calif., Cottonwood Creek at 

organ Hill, Calif., Uvas Creek near... 

Murrieta Creek at Temecula, Calif......

286

295

229

126

130

124

150

315

15

180

43

Nacimiento River, Calif., discharge 

320 measurement of......'......... ... 441

319 near San Miguel, Calif............... 176

299 Napa River near St. Helena, Calif...... 398

190 Napa River Basin, Calif., gagingstation records in..............398-399

133 Narrows Dam, Calif., Yuba River at..... 351

352 Nestor, Calif., Tia Juana River near... 18

Newman, Calif., Merced River Slough 

141 near............................. 254

143 orestimba Creek near................. 254

440 San Joaquin River near........... ... 222

145 Nicolaus, Calif., Feather River at..... 335

379 Niles, Calif., Alameda Creek near...... 191

North Drew Canal, Oreg., diversion by.. 300 

79 North Fork, Calif., Kings River above.. 210

North Fork Dam, Calif., North Fork

American River at................ 367

North San Juan, Calif., Oregon Creek 

271 near............................. 354

218 Novato Creek near Novato, Calif........ 400

Oakdale Canal near Knights Ferry, Calif. 280 

Oakland Recreation Camp, Calif., Middle

Tuolumne River at................ 265

South Fork Tuolumne River near....... 264

.ceanside, Calif., San Luis River at... 39 

Olene, Oreg., diversion from Klamath

River to Lost River near ......... 427

Lost River diversion canal near...... 426

O'Neill ditch near Ysidora, Calif...... 44

Onyx, Calif., South Fork Kern River

near............................. 199

Orange Cove, Calif., Sand Creek near... 209 

regon Creek, Calif., Middle Fork Yuba

River above...................... 350

near North San Juan, Calif........... 354

Orestimba Creek near Newman, Calif..... 254

Oroville, Calif., Feather River near... 334 

Otay River at Savage Dam, Calif........ 22
INDEX

Otay River Basin, Calif., gagingstation records in............... 21-22

Pacheco Creek near Dunneville, Calif... 

Pacific Gas & Electric Co. conduit near

Springville, Calif...............

Pacific Gas & Electric Co. conduit No.

3 near Crane Valley Reservoir,

Calif............................

Pacoiraa Creek near San Fernando, Calif. 

Pajaro River near Chittenden, Calif... 

Pajaro River Basin, Calif., gagingstation records in..............

Pala, Calif., San Luis Rey River near. 

Palermo Canal at Enterprise, Calif....

Pardoe Camp, Calif., Bear River at....

Pasadena, Calif., Arroyo Seco near....

Eaton Creek near....................

Paskenta, Calif., Thomes Creek at.....

Paso Robles, Calif., Salinas River at. 

Philadelphia Canal near Strawberry,

Calif...........................

Pico, Calif., San Gabriel River at....

Piedra, Calif., Kings River at........

Pilot Creek near Georgetown, Calif....

Pinehurst, Oreg., Little Beaver Creek

180

204

236

115

_ 179

179-182

36,37 Salinas Reservoir near Pozo, Calif.....

348

293

123

129

326

17,

near Spreckels, Calif................ 174

277 Salinas River Basin, Calif., discharge

measurements in.................. 441

211 gaging-station records in...........169-178

374

Piru, Calif., Hopper Creek near.

Piru Creek near..................

Piru Creek near Piru, Calif........

Pit River at Big Bend, Calif.......

at Fall River Mills, Calif.......

below Pit No. 4 Dam, Calif.......

near Canby, Calif................

near Montgomery' Creek, Calif.....

South Fork, near Likely, Calif... 

Pit River Basin, Calif., discharge 

measurement in.

136

135

135

314

312

313

311

315

316

441 

gaging-station records in...........311-320

Pitman Creek below Tamarack Creek,

Calif............................ 232

Placerville, Calif., Silver Creek near. 

Pleyto, Calif., San Antonio River at... 177 

Plunge Creek near East Highlands, Calif. 

Porterville, Calif., Tule River near... 203 

Post Creek, Calif., discharge measurements of.......................... 442

Potter Valley, Calif., Eel River near.. 409 

Potter Valley powerhouse tailrace

near...................... ....... 411

Potter Valley powerhouse tailraoe near

Potter Valley, Calif............. 411

Pozo, Calif., Salinas Reservoir near... 170 

Salinas River near................... 169

Toro Creek near....................... 175

Prado, Calif., Santa Ana River near..,l 54^55 

Prattville, Calif., Butt Creek near.... 336

Lake Almanor near.................... 331

North Fork Feather River near........ 332

Publications on stream flow by Geologi-6-9,11

cal Survey 

by State agencies.................... 10-11

Putah Creek near Guenoc, Calif........

near Winters, Calif.

396

397

Ramona, Calif., Santa Maria Creek near. 34 

Santa Ysabel Creek near.............. 29

Rancheria Creek, Calif., North Fork

Kings River below................ 213

Rattlesnake Bridge, Calif., North Fork

American River at................ 368

Red Bluff, Calif., Antelope Creek near. 324 

Sacramento River near................ 305

Redding, Calif., Shasta Reservoir near. 303

Redlands, Calif., San Timoteo Creek

near............................. 66

Rio Hond'o near Downey, Calif. .......... 125

near Montebello, Calif."."............. 124

Ripon, Calif., Stanislaus River at..... 273

Riverside Sewage Treatment Plant,

Calif., diversion from........... 440

Rogers Creek near Azusa, Calif......... 101

Rubicon River near Georgetown, Calif... 372

Runoff in inches, definition of........ _1

Russian River at Guerneville, -Calif.... 403

East Fork, near Calpella, Calif...... 404

near Healdsburg, Calif............... 402

near Hopland, Calif.................. 401

Russian River Basin, Calif., gagingstation records in..............401-406

Page

Sacramento, Calif., American River at.. 370

Sacramento River at Butte City, Calif.. 305

at tlolusa, CaTTfV. ...... .7 ...... .~.-.~. 307

at Delta, Calif...................... 302

at Keswick, Calif.................... 304

at Knights Landing, Calif............ 309

at Verona, Calif..................... 310

below Wilkins Slough, Calif.......... 308

near Red Bluff, Calif. .......... 305

Sacramento River Basin, Calif., gagingstation records in..............302-310

St. Helena, Calif., Conn Creek near... 

Napa River near.......

Salinas River above Pilitas Creek, near 

Santa Margarita, Calif...........

at Paso Robles, Calif................

discharge measurement of.............

near Pozo, Calif.....................

near Santa Margarita, Calif.

399

398

170

171

173

441

169

172

Salmon Falls, Calif., Webber Creek near 

Salmon River at Somesbar, Calif.

388

434

measurements of. 440 

near Lompoc, Calif................... 161

Salt Slough near Los Banos, Calif...... 246

Salt Springs Dam, Calif., North Fork

Mokelumne River below............

Tiger Creek powerhouse conduit below. 

Salt Springs Reservoir near West Point,

286

291

Calif.

San Antonio Creek (Santa Ana River

285

Basin) near Claremont, Calif..... 86-87

San Antonio Creek (tributary to Pacific 

Ocean) at Harris, Calif.........

San Antonio River at Pleyto, Calif....

discharge measurements of.

San Benito River near Willow Creek

School, Calif.

San Bernardino, Calif., Devil Canyon

Creek near.......................

Lytle Creek (east channel) at'........

Santa Ana River near.

161

177

441

181

74

77

50

River^at^El Capitan Dam.CaliL 24 r " ._._._ Jantee, "Calif 

San Diego River Basin, Calif., gaging25

, ., 

station records in. .............. 24-27

San Dieguito Riv.er at Lake Hodges, Calif. 31 

near San Pasqual, Calif. ............. 30

San Dieguito River Basin, Calif.,

gaging-station records in........ 28-34

San Dimas 'Creek near San Dimas , Calif.. 103 

San Fernando, Calif., Little Tujunga

Creek near ....................... 119

Pacoima Creek near ................... 115

San Gabriel River at Pico, Calif. ...... 99

at Spring Street, near Los Alamitos ,

Calif............................ 100

below Santa Fe Dam, near Baldwin Park,

Calif............................ 98

East Fork, near Camp Bonita, Calif... 96 

near Azusa, Calif. ................... 97

West Fork, at Camp Rincon, Calif..... 100

San Gabriel River Basin, Calif., gagingstation records in. ............. .96-110

San Jacinto River near Elsinore, Calif. 

near San Jacinto, Calif. .............

San Joaquin, Calif., James bypass near. 

San Joaquin River above Big Creek,

Calif. .............. ............ 214

at Fremont Ford Bridge, Calif ........ 221

below Friant , Calif .................. 217

below Kerckhoff powerhouse, Calif.... S, 215

near Dos Palos , Calif. ............... 219

near El Nido , Calif . ................. 220

near Mendota, Calif. ................. 218

near Newman, Calif. .................. 222

near Vernalis , Calif ................. 223

South Fork, near Florence Lake, Calif. 225 

tributaries above Fresno River,

gaging-station records on. ..... .224^241

San Joaquin River Basin, Calif.,

gaging station records in. ..... .214-223

San Jose, Calif., Guadalupe River at..: 186

83

82

241

San Jose Creek (tributary to San Gabriel

River) near Whittier, Calif. 106
Page 

San Jose Creek (directly tributary to

Pacific Ocean) near Goleta, Calif. 149 

San Juan Capistrano, Calif., San Juan

Creek near....................... 45

Trabuco Creek near. .................. 46

San Juan Creek near San Juan Capistrano

Calif......................... . 45

San Juan Creek Basin, Calif., gagingstation records in........... . . 45-46

San Juan Mutual Co.'s diversion, Calif.

discharge measurements of....... 439

San Lorenzo Creek at Hayward, Calif.... 192

San Lorenzo River at Big Trees, Calif.. 183 

San Luis Rey River at Lake Henshaw, near

Mesa Grande, Calif............... 35

at Konserate Narrows, near Pala,

Calif............................ 37

at Oceanside, Calif.................. 39

below Pala diversion dam, near Pala,

Calif............................ 36

near Bonsall, Calif............... .. 38

San Luis Rey River Basin, Calif.,

gaging-station records in. ....... '35-39

San Mateo Creek, Calif., discharge

measurements of.................. 439

San Kiguel, Calif., Nacimiento River

near............................. 176

San Pasqual, Calif., Guejito Creek at.. 33 

Cuejito Creek near ................... 32

San Dieguito River near.............. 30

Santa Ysabel Creek near.............. 30

San Timoteo Creek near Redlands, Calif. 66 

San Vicente Creek at San Vicente Dam,

at Foster, Calif................. 27

Sand Creek near Orange Cove, Calif..... 209

Santa Agueda Creek near Santa Ynez,

Calif............................ 160

Santa Ana, Calif., Santa Ana River at.. 56 

Santiago Creek at.................... 95

Santa Ana River at Auburndale Bridge,

near Corona, Calif............... 53

at E Street Bridge, near San Bernardino, Calif. .................. 50

at Hamner Avenue, near Corona, Calif. 52 

at Riverside Marrows near Arlington,

Calif............................ 51

at Santa Ana, Calif.................. 56

below Prado Dam, near Prado, Calif... 54 

discharge measurements of............ 439

near Mentone, Calif.................. 48-49

near Prado, Calif.................... 55

Santa Ana River Basin, Calif., gagingstation records in............... 48-95

Santa Anita Creek near Sierra Madre,

Calif................ .......... 127

Santa Barbara, Calif., Santa Ynez River

near........................... 150,151

Santa Clara River near Saugus, Calif... 134 

Santa Clara River Basin, Calif., gagingstation records in. ............ .134-140

Santa Cota Creek, Calif., discharge

measurements of.................. 440

Santa Cruz Creek above Stuke Canyon,

near Santa Ynez, Calif........... 158

near Santa Ynez, Calif............... 152'

Santa Margarita, Calif., Salinas River near 171,172

Santa Margarita River at Ysidora, Calif. 42

near Fall Brook, Calif............... 41

Santa Margarita River Basin, Calif.,

gaging-station records in,....... 39-44

Santa Maria, Calif., Alamo Creek near.. 164 

Cuyama River near. ................... 163

Huasna River near.................... 165

Santa Maria Creek near Ramona, Calif... 34

Santa Maria River at Guadalupe, Calif.. 164

discharge measurements of............ 441

Santa Maria River Basin, Calif., gagingstation records in............ 162-167

Santa Paula Creek near Santa Paula,

Calif............ .. ...... .... 140

Santa Rosa Creek, Calif., discharge

measurements of.................. 440

Santa Ynez, Calif., Santa Agueda Creek

near............................. 160

Santa Cruz Creek near...............158,159

Santa Ynez River near................ 152

Santa Ynez River above Gibralter Dam,

near Santa Barbara, Calif........ 150

at barrier, near Surf, Calif......... 157

Page 

Santa Ynez River at H Street, near

^ Lompoc, Calir. ................... 157

at Jameson Lake, near Montecito,

Calif.......................... . 150

at narrows, near Lompoc, Calif....... 155

at Solvang, Calif................. .. 153

below Gibraltar Dam, near Santa

Barbara, Calif................... 151

below Los Laureles Canyon, near Santa

Ynez, Calif. ..................... 152

discharge measurements of............ 440

near Buellton, Calif............... . 154

near Lompoc, Calif.............. ... 156

near Santa Ynez, Calif. .............. 152

Santa Ynez River Basin, Calif., gagingstation records in....... .....150-161

Santa Ysabel Creek near Mesa Grande,

Calif............................ 28

near Ramona, Calif....... ...... ... 29

near San Pasqual, Calif. ............ 30

Santee, Calif., San Diego River near... 25 

Santiago Creek at Santa Ana, Calif..... 95

at Santiago Dam, near Villa Park,

Calif........................ ... 89-93

near Villa Park, Calif............... 94

Saratoga, Calif., Campbell Creek at.... 189

Saugus, Calif., Santa Clara River near. 134 

Savage Dam, Calif., Otay River at...... 22

Sawpit Creek near Monrovia, Calif...... 126

Scotia, Calif., Eel River at........... 410

Scott River near Fort Jones, Calif..... 433

Second-feet per square mile, definition of...... ....:................... i

Second-foot, definition of............. _1

Second-foot-day, definition of......... 1

Sepulveda Dam, Calif., Los Angeles

River at.............. .......... Ill

Sespe Creek near Fillmore, Calif....... 138

near Wheeler Springs, Calif........ . 137

Shasta Reservoir, Calif., McCloud River

above. .......................... 320

near Redding, Calif.................. 303

Squaw Creek above .................... 318

Shasta River near Yreka, Calif......... 432

Shaver Lake near Big Creek, Calif...... 233

Sierra Madre, Calif., Little Santa

Anita Creek near................. 128

Santa Anita Creek near............... 127

Silver Creek at Union Valley, Calif.... 384

near Placerville, Calif....... ..... 385

South Fork, near Ice House, Calif.... 386

Silver Lake Outlet near Kirkwood, Calif. 380 

Sisquoc, Calif., La Brea Creek near.... 167

Sisquoc River near................... 166

Tepusquet Creek near................. 167

Sisquoc River near Garey, Calif........ 166

near Sisquoc, Calif.................. 166

Sloat, Calif., Middle Fork Feather

River below...................... 345

Smartville, Calif., Deer Creek near.... 363

Smith River near Crescent City, Calif.. 438 

Soledad, Calif., Arroyo Seco near...... 178

Solvang, Calif., Santa Ynez River at... 153 

Somesbar, Calif., Klamath River at..... 420

Salmon River at........ ............. 434

South San Joaquin Canal near Knights

Ferry, Calif............... .... 279

Southern California Edison Co.'s canal 

below power plant No. 2, near 

Mentone, Calif................... 57

near Mentone, Calif...... ........ 58

Southern California Edison Co.'s conduit near Claremont, Calif....... 88

Spanish Creek at Keddie, Calif......... 339

Sprague River near Chiloquin, Oreg..... 422

Spreckels, Calif., Salinas River near.. 174 

Spring Valley ditch near Yankee Hill,

Calif............................ 343

Springville, Calif., North Fork of

Middle Fork Tule River near...... 202

Pacific Gas & Electric Co. conduit

near............................. 204

Squaw Creek above Shasta Reservoir,

Calif............................ 318

Stage-discharge relation, definition of 1 

Stanislaus River at Ripon, Calif....... 273

below Melones powerhouse, Calif...... 272

Middle Fork, at Kennedy Meadows,

Calif................ ........ ., 269
INDEX 449

205

117

157

22

23

232

440

43

Stanislaus River, Middle Fork, at

San Bar Flat, near Avery, Calif.. 

North Fork, near Avery, Calif........

South For*, at Strawberry, Calif.....

near Long Barn, Calif. ........... .

Stanislaus River Basin, Calif. , gagingstation records in.... ........ 2t

Stevens Creek near Cupertino, Calif....

Stevinson, Calif., Merced River near... 

Stockton diverting canal at Stockton,

Calif. ...........................

Stony Creek near Hamilton City, Calif.. 

Strawberry, Calif., Philadelphia Canal

near.............................

South Fork Stanislaus River at.......

Strawberry Creek near Arrowhead Springs

Calif. ......................'.....

Success, Calif., Soath Fork Tule River

near.............................

Sunland, Calif., Tu.iunga Creek near....

Surf, Calif., Santa Ynez River near....

Sweetwater River at Love land Dam, near

Alpine, Calif. . . . . ............

at Sv.~eetw.ater Dam, Calif. .........

Sweetwater River Basin, Calif., gagingstation records in....... .... .

Tamarack CreeK, Calif., Pitman Creek 

below. ................. ......

Teeolate Canysn Creek, Calif., discharge measurements of........

Temecula, Calif., Kurrieta Creek at.

Temecila rreek near........ ... .... 39,40

Temecula Creek at Kigger Canyon, near

Temecula, Calif. ................. 39

at Railroad Canyon, near Temecula, 

Calif. ...................... ..

Temescal Creek near" Corona, Calif.. . 

Tenaya Creek near Yosemite, Calif....

Tepusquet Creek near Sisquoc, Calif.. 

Terms, definition of.. ...... ....

Thomes Creek at Paskenta, Calif.....

Three Rivers, Calif., Kaweah River

near............................206-207

Tia Juana River, Calif., discharge

measurements of.................. 439

near Dulzura, Calif. ................. 17

near Nestor, Calif................... 18

Tia Juana River Basin, Calif., gagingstation records in. .............. 15-20

Tiger Creek powerhoase conduit below

Salt Springs Dam, Calif. .........

Tilley Creek, Calif., Borel Canal at... 

Topanga Creek near Topanga Beach, Calif 

Toro Creek near Pozo, Calif. . . ........

Trabuco Creek near San Juan Capistrano, 

Calif................. ...... .

Tres Pinos Creek near Tres Pinos, Calif 

Trinity River at Lewiston, Calif.......

discharge measurements of............

Hay Fork, discharge measurements of., 

near Douglas City, Calif.............

near Hoopa, Calif.................... 437

Tujunga, Calif., Haines Creek near.... 120-122

Tujunga Creek below Hansen Dam, Calif.. 118 

near Colby Ranch, Calif.............. 116

near Sunland, Calif. ................. 117

Tulare Lake in Kings County, Calif..... 201

Tulare Lake Basin, Calif., gagingstation records in..............201-213

Tule Lake Basin, Calif., discharge

measurements in.................

Tule River near Porterville, Calif....

North Fork of Middle Fork, near

Springville, Calif..............

South_Fork, near Success, Calif.....

Tuolumhe Canal near Long Barn, Calif.. 

Tuolumne ^Uver above La Grange Dam,

near La Grange, Calif ...........

at Modesto, Calif...................

near Hetch Hetchy, Calif ............

South Fork, near Oakland Recreation 

Camp, Calif.....................

Tuolumne River Basin, Calif., gagingstation records in..............255-25

Turlgick Canal near La Grange, Calif.... 268

Twin'LaKes Outlet near Kirkwood, Calif. 381

Un^on Valley, Calif., Silver Creek at.. 384

441

203

264

Jpland, Calif., Cucamonga Creek near.., 

Upper Klamath Lake near Klamath Falls, 

Oreg.... . , ...................

Uvas Creek near Morgan Hill, Calif....,

416

180

Vade, Calif., Echo Lake conduit near... 378 

Medley Lakes Outlet near.......... . 379

Valley Springs, Calif., Cosgrove Creek

near. ............................ 282

Van Duzen River at Bridgeville, Calif.. 414 

Ventacopa, Calif., Cuyama River near... 162 

Ventura, Calif., Coyote Creek near..... 146

Ventura River near................... 144

Ventura River near Ventura, Calif...... 144

Ventura River Basin, Calif., gagingstation records in..............141-146

Vermilion Valley, Calif., Bear Creek

near. ............................ 228

Mono Creek near...................... 229

Vernalis, Calif., San Joaquin River

near. ............................ 223

Verona, Calif., Sacramento River at.... 310

Villa Park, Calif., Santiago CreeK

near...........................89-93,94

Vina, Calif., Deer creek near.......... 327

rfard tunnel at intake, Calif..........

at outlet, Calif....................

Warm Creek near Colton, Calif.........

rising water east of, discharge

measurements of.................. 439

rfashington, Calif., South Fork Yuba

River near....................... 358

Waterman Canyon Creek near Arrowhead

Springs, Calif................... 70

Webber Creek near Salmon Falls, Calif.. 388 

West Point, Calif., Middle Fork

Mokelumne River at.....'.......... 294

Salt Springs Reservoir near.......... 285

South "Fork Mokelumne River near...... 295

Wheatland, Calif., Bear River near..... 365

Wheeler Springs, Calif., Sespe Creek

near............................. 137

White River near Ducor, Calif.......... 201

Whitehall, Calif., Alder Creek near.... 383

Whittier, Calif., San Jose Creek near.. 106 

Wilkins Slough, Calif., Sacramento

River below................... .. 308

Williamson River below Sprague River

near Chiloquin, Oreg............. 415

Willow Creek, North Fork, below Crane

Valley Reservoir, Calif.......... 235

Willow Creek School, Calif., San Benito

River near....................... 181

Winters, Calif., Putah Creek near...... 397

Woodbridge, Calif., Mokelumne River at. 29C 

Woodbridge Canal at.................. 296

Woodbridge Canal at Woodbridge, Calif.. 296 

Woodland, Calif., Yolo bypass near..... 389

Woods Creek near Jacksonville, Calif... 266 

Work, division of...................... 14

scope of............................. 1

Yankee Hill, Calif., Concow Creek

near.............................

Spring Valley ditch near. ............

West Branch Feather River near.......

Yolo, Calif., Cache Creek at...........

Yolo bypass near Woodland, Calif.......

Yosemite, Calif., Merced River near...247, 

Tenaya Creek near....................

Ysidora, Calif., O'Neill ditch

near.............................

Santa Margarita River at........... .

Yreka, Calif., Shasta River near.......

Yuba River at Marysville, Calif........

at Narrows Dam, Calif... ............

Middle Fork, above Oregon Creek,

Calif............................

at Milton, Calif...................

North Fork, at Colgate diversion dam, 

Calif............................

below Goodyears Bar, Calif.........

South Fork, at Jones Bar, Calif......

near Cisco, Calif..................

near Washington, Calif.............

U. S. GOVERNMENT PRINTING OFFICE : O 1950