Surface Water Supply 

of the United States 

1947

Part 11. Pacific Slope Basins in California

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1091

Prepared in cooperation with the States 

of California and Oregon, and other 

agencies

m m b PUBLIC PROPERTY **

be removed from the official files; PRIVATE PC

IS UNLAWFUL (R. S. Sup. Yd 2, p?. 3U 3« 74i)

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1949
UNITED STATES DEPARTMENT OF THE INTERIOR 

J. A. Krug, 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 .._____________________Portland, Oreg. 

H. D. McGlashan__________________San Francisco, Calif.

m
CONTENTS

Page

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

Definition of terms .................................................................. 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.............. 11

Division of work..................................................................... 13

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

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

Cottonwood Creek at Morena Dam, Calif............................................ 16

Cottonwood Creek at Barratt Dam, near Dulzura, Calif............................. 16

Cottonwood Creek above Tecate Creek, near Dulzura, Calif......................... 17

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

Tia Juana River near Nestor, Calif. ............'.................................. 19

Dulzura conduit near Dulzura, Calif.............................................. 20

Otay River Basin................................................................... 22

Jamul Creek near Jamul, 'Calif.................................................... 22

Otay River at Savage Dam, Calif.................................................. 23

Sweetwater River Basin............................................................. 24

Sweetwater River at Loveland Dam, near Alpine, Calif............................. 24

Sweetwater River at Sweetwater Dam, Calif........................................ 25

San Diego River Basin.............................................................. 26

San Diego River at El Capitan Dam, Calif......................................... 26

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

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif.......................... 28

San Vicente Creek at San Vicente Dam, at Foster, Calif........................... 29

San Dieguito River Basin........................................................... 30

Santa Ysabel Creek near Mesa Grande, Calif....................................... 30

Santa Ysabel Creek near Ramona, Calif............................................ 31

Santa Ysabel Creek near San Pasqual, Calif....................................... 32

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

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

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

Guejito Creek at San Pasqual, Calif.............................................. 36

Santa Maria Creek near Ramona, Calif............................................. 37

San Luis Rey River Basin........................................................... 38

San Luis Rey River at Lake Henshaw, near Mesa Grande, Calif...................... 38

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

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

San Luis Rey River near Bonsall, Calif........................................... 41

San Luis Rey River at Oceanslde, Calif........................................... 42

Santa Margarita River Basin........................................................ 42

Temecula Creek at Nigger Canyon, near Temecula, Calif............................ 42

Temecula Creek at Railroad Canyon, near Temecula, Calif.......................... 43

Santa Margarita River near Fall Brook, Calif..................................... 44

Santa Margarita River at Ysidora, Calif.......................................... 45

Murrieta Creek at Temecula, Calif................................................ 46

O'Neill ditch near Ysidora, Calif................................................. 47

San Juan Creek Basin............................................................... 48

San Juan Creek near San Juan Capistrano, Calif................................... 48

Trabuco Creek near San Juan Capistrano, Calif.................................... 49

Aliso Creek Basin.................................................................. 50

Aliso Creek at El Toro, Calif.................................................... 50

Santa Ana River Basin.............................................................. 51

Santa Ana River near Mentone, Calif.............................................. 51

Santa Ana River at E Street Bridge, near San Bernardino, Calif................... 53

Santa Ana River at Riverside Narrows, near Arlington, Calif...................... 54

Santa Ana River at Hamner Avenue, near Corona, Calif............................. 55

Santa Ana River at Auburndale Bridge, near Corona, Calif......................... 56

Santa Ana River below Prado Dam, near Prado, Calif............................... 57

Santa Ana River near Prado, Calif................................................ 58

Santa Ana River at Santa Ana, Calif.............................................. 59

Southern California Edison Co. 's canal near Mentone, Calif....................... 60

Greenspot pipe line near Mentone, Calif.......................................... 61

Mill Creek near Mentone, Calif................................................... 62

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

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

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

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

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

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

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

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

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

Gaging-station records Continued.

Santa Ana River Basin--Continued.

De/11 Canyon Creek near San Bernardino, Calif................................... 74

Lytle Creek near Fontana, Calif................................................. 75

Lytle Creek (east channel) at San Bernardino, Calif............................. 77

Cajon Creek near Keenbrook, Calif............................................... 78

Weeks & Daley Canal near Colton, Calif.......................................... 79

Day Creek near Etiwanda, Calif.................................................. 80

Cucamonga Creek near Upland, Calif.............................................. 81

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

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

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

Temescal Creek near Corona, Calif............................................... 84

San Antonio Creek near Claremont, Calif......................................... 85

Southern California Edison Co.'s conduit near Claremont, Calif.................. 87

Santiago Creek near Villa Park, Calif........................................... 88

Santiago Creek at Santa Ana, Calif.............................................. 89

San Gabriel River Basin........................................................... 90

East Fork San Gabriel River near Camp Bonita, Calif............................. 90

San Gabriel River near Azusa, Calif............................................. 91

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

San Gabriel River at Pico, Calif................................................ 93

San Gabriel River at Spring Street, near Los Alamitos, Calif.................... 94

West Fork San Gabriel River at Camp Rinoon, Calif............................... 95

Rogers Creek near Azusa, Calif.................................................. 96

Fish Creek near Duarte, Calif................................................... 97

San Bimas Creek near San Dimas, Calif........................................... 98

Dalton Creek near Glendora, Calif............................................... 99

Little Dalton Creek near Glendora, Calif........................................ 100

San Jose Creek near Whittier, Calif............................................. 101

Coyote Creek near Artesia, Calif................................................ 102

Brea Creek below Brea Dam, near Fullerton, Calif................................ 103

Brea Creek at Fullerton, Calif.................................................. 104

Fullerton Creek below Fullerton Dam, near Brea, Calif........................... 105

"ullerton Creek at Fullerton, Calif............................................. 106

Los Angeles River Basin........................................................... 107

Los Angeles River at Sepulveda Dam, Calif....................................... 107

Los Angeles River at Los Angeles, Calif......................................... 108

Los Angeles River near Downey. Calif............................................ 109

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

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

Tujunga Creek near Colby Ranch, Calif........................................... 112

Tujunga Creek near Sunland, Calif............................................... 113

Tujunga Creek below Hansen Dam, Calif........................................... 114

Little Tujunga Creek near San Fernando, Calif................................... 115

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

Arroyo Seco near Pasadena, Calif.............................................*... 117

Rio Hondo near Wontebello, Calif................................................ 118

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

Sawpit Creek near Monrovia, Calif............................................... 120

Santa Anita Creek near Sierra Madre, Calif...................................... 121

Little Santa Anita Creek near Sierra Wadre, Calif............................... 122

Eaton Creek near Pasadena, Calif................................................ 123

Mission Creek near Wontebello, Calif............................................ 124

Ballona Creek Basin............................................................... 125

Ballona Creek near Culver City, Calif. .......................................... 125

Topanga Creek Basin............................................................... 126

Topariga Creek near Topanga Beach, Calif......................................... 126

Walibu Creek Basin. ...........................................'..-.................. 127

Walibu Creek at Crater Camp, near Calabasas, Calif.............................. 127

Santa Clara River Basin........................................................... 128

Santa Clara River near Saugus, Calif............................................ 128

Piru Creek near Piru, Calif..................................................... 129

Hopcer Creek near Piru, Calif................................................... 130

Sespe Creek near Fillmore, Calif................................................ 131

Fillmore Irrigation Co.'s canal near Fillmore, Calif............................ 132

Santa Paula Creek near Santa Paula, Calif....................................... 133

Ventura River Basin............................................................... 134

Watilija Creek at Watilija, Calif............................................... 134

Ventura River near Ventura, Calif. ..... ^ ........................................ 135

North Fork Watilija Creek at Watilija, Calif.................................... 136

Coyote Creek near Ventura, Calif................................................. 137

Carpinteria Creek Basin........................................................... 138

Carpinteria Creek near Carpinteria, Calif....................................... 138

Alascadero Creek Basin............................................................ 139

Alascadero Creek near Goleta, Calif.............................................. 139

San Jose Creek Basin.............................................................. 140

San Jose Creek near Goleta, Calif............................................... 140

Santa Ynez River Basin............................................................ 141

Santa Ynez River at Jameson Lake, near Montecito, Calif......................... 141

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

Santa Ynez River below Gibraltar Dam, near Santa Barbara, Calif................. 143

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

Santa Ynez River near Santa Ynez, Calif......................................... 145

Santa Ynez River at Solvang, Calif.............................................. 146

Santa Ynez River at Narrows, near Lompoc, Calif................................. 147

Santa Ynez River near Lompoc, Calif............................................. 148
CONTENTS VII

Gaging-station records Continued. Page

Santa Ynez River Basin Continued.

Santa Ynez River at H Street, near Lompoo, Calif................................. 149

Santa Ynez River at barrier, near Surf, Calif.................................... 150

Santa Cruz Creek above Stuke Canyon, near Santa Ynez, Calif...................... 151

Santa Cruz Creek near Santa Ynez, Calif.......................................... 152

Santa Agueda Creek near Santa Ynez, Calif........................................ 153

La Zaca Creek at Buellton, Calif................................................. 154

Salsipuedes Creek near Lompoo, Calif............................................. 155

San Antonio Creek Basin............................................................ 156

San Antonio Creek at Harris, Calif............................................... 156

Santa Maria River Basin............................................................ 157

Cuyama River near Ventucopa, Calif............................................... 157

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

Santa Maria River at Guadalupe, Calif............................................ 159

Alamo Creek near Panta Maria, Calif.............................................. 160

Huasna River near Santa Maria, Calif............................................. 161

Sisquoc River nsar Sisquoo, Calif................................................ 162

Sisquoc River near Gary, Calif................................................... 163

Labrea Creek near Sisquoo, Calif................................................. 163

Tepusquet Creek near Sisquoo, Calif.............................................. 164

Arroyo Grande Basin................................................................ 165

Arroyo Grande at Arroyo Grande, Calif............................................ 165

San Luis Obispo Creek Basin........................................................ 166

Steiner Creek near San Luis Obispo, Calif........................................ 166

Salinas River Basin................................................................ 167

Salinas River near Pozo, Calif................................................... 167

Salinas Reservoir near Pozo, Calif............................................... 168

Salinas River above Pilitas Creek, near Santa Margarita, Calif................... 169

Salinas River near Santa Margarita, Calif........................................ 170

Salinas River at Paso Robles, Calif.............................................. 171

Salinas River near Spreokels, Calif.............................................. 172

Toro Creek near Pozo, Calif...................................................... 173

Santa Margarita Creek near Santa Margarita, Calif................................ 173

Tassajera Creek near Santa Margarita, Calif....................................... 174

Nacimiento River near San Miguel, Calif.......................................... 174

San Antonio River at Pleyto, Calif............................................... 175

Arroyo Seoo near Soledad, Calif. .................................................. 176

Pajaro River Basin............................................'........,............. 177

Pajaro River near Chittenden, Calif.............................................. 177

Pacheco Creek near Dunnevllle, Calif............................................. 178

Uvas Creek near Morgan Hill, Calif............................................... 179

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

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

San Lorenzo River Basin............................................................ 182

San Lorenzo River at Big Trees, Calif............................................ 182

Stevens Creek Basin................................................................ 183

Stevens Creek near Cupertino, Calif.............................................. 183

Guadalupe River Basin.............................................................. 184

Alamitos Creek near Edenvale, Calif.............................................. 184

Guadalupe River at San Jose, Calif............................................... 185

Los Capitancillos Creek at Guadalupe, Calif...................................... 186

Los Gatos Creek below Los Gates, Calif. .*........................................ 187

Campbell Creek at Saratoga, Calif................................................ 188

Coyote Creek Basin................................................................. 189

Coyote Creek near Madrone, Calif................................................. 189

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 at Isabella, Calif......................................... 199

Tulare Lake Basin.................................................................. 199

Tulare Lake in Kings County, Calif............................................... 199

White River near Ducor, Calif.................................................... 200

North Fork of Middle Fork Tule River near Springville, Calif..................... 201

Tule River near Porterville, Calif............................................... 202

Pacific Gas & Electric Co. conduit near Springville, Calif....................... 203

South" Pork Tule River near Success, Calif........................................ 204

Kaweah River near Three Rivers, Calif............................................ 205

North Fork Kaweah River at Kaweah, Calif......................................... 206

Sand Creek near Orange Cove, Calif............................................... 207

Kings River above North Fork, Calif.............................................. 208

Kings River at Piedra, Calif..................................................... 209

North Fork Kings River near Cliff Camp, Calif.................................... 210

North Fork Kings River below Rancheria Creek, Calif.............................. 211

San Joaquin River Basin............................................................ 212

San Joaquin River main stem...................................................... 212

San Joaquin River above Big Creek, Calif....................................... 212

San Joaquin River below Kerokhoff powerhouse, Calif............................ 213

Millerton Lake at Friant, Calif................................................ 214

San Joaquin River below Friant, Calif.......................................... 215
VIII CONTENTS

Gaging-station records Continued. 

San Joaquin River Basin Continued.

San Joaquin River main stem Continued. Page

San Joaquin River near Mendota, Calif.......................................... 216

San Joaquin River near Dos Palos, Calif........................................ 217

San Joaquin River near El Nido, Calif.......................................... 218

San Joaquin River at Fremont Ford Bridge, Calif................................ 219

San Joaquin River near Newman, Calif........................................... 220

San Joaquin River near Vernalis, Calif......................................... 221

San Joaquin River tributaries above Fresno River................................. 222

Florence Lake near Big Creek, Calif............................................ 222

South Fork San Joaquin River near Florence Lake, Calif......................... 223

Ward tunnel at intake, Calif................................................... 224

Ward tunnel at outlet, Calif................................................... 225

Bear Creek near Vermilion Valley, Calif........................................ 226

Mono Creek near Vermilion Valley, Calif........................................ 227

Huntington Lake near Big Creek, Calif.......................................... 228

Big Creek below Huntington Lake, Calif......................................... 229

Pitman Creek below Tamarack Creek, Calif....................................... 230

Shaver Lake near Big Creek, Calif.............................................. 231

Huntington-Shaver conduit at outlet, Calif..................................... 232

North Fork Willow Creek below Grans Valley Reservoir, Calif.................... 233

Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif.... 234

Big Sandy Creek near Auberry, Calif............................................ 235

Fine Gold Creek near Friant, Calif............................................. 236

Cottonwood Creek near Friant, Calif............................................ 237

Little Dry Creek near Friant, Calif............................................ 238

Fresno River Basin............................................................... 239

Fresno River near Knowles, Calif............................................... 239

Fresno River near Daulton, Calif............................................... 240

Tributaries and diversions between Fresno River and Merced River.............. .. 241

Chowchilla River at Buchanan dam site, Calif................................... 241

Chamberlain Slough near El Nido, Calif......................................... 242

Salt Slough near Los Banos, Calif.............................................. 243

Merced River Basin............................................................... 244

Merced River at Happy Isles Bridge, near Yosemite, Calif....................... 244

Merced River at Pohono Bridge, near Yosemite, Calif............................ 245

Merced River at Kittridge, Calif............................................... 246

Lake McClure.at Exchequer, Calif............................................... 247

Merced River at Exchequer, Calif............................................... 248

Merced River near Stevinson, Calif............................................. 249

Tenaya Creek near Yosemite, Calif.............................................. 250

Merced River Slough near Newman, Calif......................................... 251

Orestimba Creek Basin............................................................ 251

Orestimba Creek near Newman, Calif............................................. 251

Tuolumne River Basin............................................................. 252

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.................................. 252

Tuolumne River near Hetch Hetchy, Calif........................................ 253

Don Pedro Reservoir near La Grange, Calif...................................... 254

Tuolumne River above La Grange Dam, near La Grange, Calif...................... 255

Tuolunne River at Modesto, Calif............................................... 256

Falls Creek near Hetch Hetchy, Calif........................................... 257

Cherry Creek near Hetch Hetchy, Calif.......................................... 258

Lake Eleanor near Hetch Hetchy, Calif.......................................... 259

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

South Fork Tuolumne River near Oakland Recreation Camp, Calif.................. 261

Middle Tuolumne River at Oakland Recreation Camp',. Calif........................ 262

Woods Creek near Jacksonville, Calif........................................... 263

Modesto Canal near La Grange, Calif............................................ 264

Turlock Canal near La Grange, Calif............................................ 265

Stanislaus River Basin.....................;..................................... 266

Middle Fork Stanislaus River at Kennedy Meadows, Calif......................... 266

Middle Fork Stanislaus River at Sand Bar Flat, near Avery, Calif............... 267

Melones Reservoir at Melones Dam, Calif........................................ 268

Stanislaus River below Melones powerhoase, Calif............................... 269

Stanislaus River at Ripon, Calif............................................... 270

North Fork Stanislaus River near Avery, Calif.................................. 271

South Fork Stanislaus River at Strawberry, Calif............................... 272

South Fork Stanislaus River near Long Barn, Calif.............................. 273

Philadelphia Canal near Strawberry, Calif...................................... 274

Tuolumne Canal near Long Barn, Calif........................................... 275

South San Joaquin Canal near Knights Ferry, Calif.............................. 276

Oakdale Canal near Knights Ferry, Calif........................................ 277

Calaveras River Basin............................................................ 278

Calaveras River at Jenny Lind, Calif........................................... 278

Cosgrove Creek near Valley Springs, Calif...................................... 279

Stockton diverting canal at Stockton, Calif.................................... 280

Bear Creek Basin................................................................. 281

Bear Creek near Lockeford, Calif............................................... 281

Mokelumne River Basin............................................................ 282

Salt Springs Reservoir near West Point, Calif.................................. 282

North Fork Mokelumne River below Salt Springs Dam, Calif....................... 283

Mokelumne River near Mokelumne Hill, Calif..................................... 284

Mokelumne River at Lancha Plana, Calif......................................... 285

Mokelumne River near Clements, Calif........................................... 286

Mokelumne River at Woodbridge, Calif........................................... 287

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif................... 288

Cold Creek near Mokelumne Peak, Calif.......................................... 289
CONTENTS IX

G&ging-station records Continued. 

San Joaquln River Basin Continued.

Mokelumne River Basin--Continued. Page

Bear River at Pardoe Camp, Calif................................................ 290

Middle Fork Mokelumne River at West Point,.Calif................................ 291

South Fork Mokelumne River near West Point, Calif............................... 292

Woodbridge Canal at Woodbridge, Calif........................................... 293

Dry Creek near Gait, Calif...................................................... 294

Cosumnes River at Michigan Bar, Calif........................................... 295

Cosumnes River at McConnell, Calif.............................................. 296

Goose Lake Basin.................................................................... 297

Drew Creek near Lakeview, Oreg.................................................... 297

Cottonwood Creek near Lakeview, Oreg.............................................. 298

Sacramento River Basin.............................................................. 299

Sacramento River main stem........................................................ 299

Sacranento River at Delta, Calif................................................ 299

Shasta Reservoir near Redding, Calif............................................ 300

Sacramento River at Keswick, Calif.............................................. 301

Sacramento River near Red Bluff, Calif.......................................... 302

Sacramento River at Butte City, Calif........................................... 303

Sacramento River at Colusa, Calif............................................... 304

Sacramento River below Wilkins Slough, Calif.................................... 305

Sacramento River at Knights Landing, Calif...................................... 306

Sacramento River at Verona, Calif............................................... 307

Pit River Basin................................................................... 308

Pit River near Canby, Calif..................................................... 308

Pit River at Fall River Mills, Calif............................................ 309

Pit River below Pit No. 4 Dam, Calif............................................ 310

Pit River at Big Bend, Calif.................................................... 311

Pit River near Montgomery Creek, Calif.......................................... 312

South Fork Pit River near Likely, Calif......................................... 313

Hat Creek near Hat Creek, Calif................................................. 314

Squaw Creek above Shasta Reservoir, Calif....................................... 315

McCloud River near McCloud, Calif............................................... 316

McCloud River above Shasta Reservoir, Calif..................................... 317

Clear Creek Basin................................................................. 319

Clear Creek near Igo, Calif..................................................... 319

Cottonwood Creek Basin............................................................ 320

Cottonwood Creek near Cottonwood, Calif......................................... 320

Battle Creek Basin................................................................ 321

Battle Creek near Cottonwood, Calif............................................. 321

Antelope Creek Basin.............................................................. 322

Antelope Creek near Red Bluff, Calif............................................ 322

Mill Creek Basin.................................................................. 323

Mill Creek near Los Molinos, Calif.............................................. 323

Thomas Creek Basin................................................................ 324

Thomas Creek at Paskenta, Calif................................................. 324

Deer Creek Basin.................................................................. 325

Deer Creek near Vina, Calif..................................................... 325

Chico Creek Basin................................................................. 326

Chico Creek near Chico, Calif................................................... 326

Stony Creek Basin................................................................. 327

Stony Creek near Hamilton City, Calif........................................... 327

Butte Creek Basin................................................................. 328

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

Feather River Basin............................................................... 329

Lake Almanor near Prattville, Calif............................................. 329

North Fork Feather River near Prattville, Calif................................. 330

North Fork Feather River at Big Bar, Calif...................................... 331

Feather River near Orovllle, Calif.............................................. 332

Feather River at Nicolaus, Calif................................................ 333

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif.............. 334

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif.............. 335

Indian Creek near Crescent Mills, Calif......................................... 336

Spanish Creek at Keddie, Calif.................................................. 337

Bucks Creek Reservoir near Bucks Ranch, Calif................................... 338

West Branch Feather River near Yankee Hill, Calif............................... 339

Concow Creek near Yankee Hill, Calif............................................ 340

Spring Valley ditch near Yankee Hill, Calif..................................... 341

Middle Fork Feather River near Clio, Calif...................................... 342

Middle Fork Feather River below Sloat, Calif.................................... 343

Middle Fork Feather River at Bidwell Bar, Calif................................. 344

South Fork Feather River at Enterprise, Calif................................... 345

Palermo Canal at Enterprise, Calif.............................................. 346

Middle Fork Yuba River at Milton, Calif......................................... 347

Middle Fork Yuba River above Oregon Creek, Calif................................ 348

Yuba River at Narrows Dam, Calif................................................ 349

Yuba River at Marysville, Calif................................................. 350

Milton-Bowman tunnel at outlet, Calif........................................... 351

Oregon Creek near North San Juan, Calif......................................... 352

North Fork Yuba River below Goodyears Bar, Calif................................ 353

North Fork Yuba River at Colgate diversion dam, Calif........................... 354

South Fork Yuba River near Cisco, Calif......................................... 355

South Fork Yuba River near Washington, Calif.................................... 356

South Fork Yuba River at Jones Bar, Calif....................................... 357

Bowman Lake near Graniteville, Calif............................................ 358

Canyon Creek below Bowman Lake, Calif........................................... 359

Bowman-Spaulding Canal at intake, Calif......................................... 360
X CONTENTS

.Gaging-station records--Continued. 

Sacramento River Basin Continued.

Feather River Basin Continued. Page

Deer Creek near Smartville, Calif................................................ 361

Bear River near Auburn, Calif.......:........................................... 362

Bear River near Wheatland, Calif................................................ 363

Bear River Canal near Colfax, Calif............................................. 364

American R iver Bas in.............................................................. 365

North Fork American River at North Fork Dam, Calif.............................. 365

North Fork American River at Rattlesnake Bridge, Calif.......................... 366

American River at Fair Oaks, Calif.............................................. 367

American River at Sacramento, Calif............................................. 368

Middle Fork American "iver near Auburn, Calif................................... 369

Rubicon River near Georgetown, Calif............................................ 370

Seorgetovm ditch above Pilot Creek, near Georgetown, Calif...................... 371

Pilot Creek nsar Georgetown, Calif.............................................. 372

Georgetown ditch near Georgetown, Calif......................................... 374

South Fork American River near Kyburz, Calif.................................... 375

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

Echo Lake conduit nearVade, Calif.............................................. 377

Medley Lakes Outlet near Vade, Calif............................................ 378

Silver Lake Outlet near Kirkwood, Calif......................................... 379

Twin Lakes Outlet near Kirkwood, Calif.......................................... 380

El Dorado Canal near Kyburz, Calif.............................................. 381

Alder Creek near Whitehall, Calif............................................... 382

Silver Creek at Union Valley, Calif............................................. 383

Silver Creek near Placerville, Calif............................................ 384

South Fork Silver Creek near Ice House, Calif................................... 385

American River flume near Camino, Calif......................................... 386

Webber Creek near Salmon Falls, Calif........................................... 387

Colusa and Yolo Basins............................................................ 388

Yolo bypass near Woodland, Calif................................................ 388

Clear Lake at Lakeport, Calif................................................... 389

Cache Creek near Lower Lake, Calif.............................................. 390

Cache Creek near Capay, Calif................................................... 391

Cache Creek at Yolo, Calif...................................................... 392

Kelsey Creek near Kelseyville, Calif............................................ 393

North Fork Cache Creek near Lower Lake, Calif................................... 394

Putah Creek near Guenpc, Calif.................................................. 395

Putah Creek near Winters, Calif................................................. 396

Napa River Basin.................................................................... 397

Napa River near St. Helena, Calif................................................. 397

Conn Creek near St. Helena, Calif................................................. 398

Novato Creek Basin.................................................................. 399

Novato Creek near Novato, Calif................................................... 399

Russian River Basin................................................................. 400

East Fork Russian River near Calpella, Calif...................................... 400

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

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

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

Dry Creek near Cloverdale, Calif.................................................. 404

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

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

. Lake Pillsbury 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....................... 411

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

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

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

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

Williamson 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

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

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

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

Sprague River 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............................................. 438
Page 

Miscellaneous discharge neasureraents.................................................. 439

Index................................................................................. 443

Page 

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

Joaquin Fiver below Kerckhoff powerhouse, Calif.; C_, North Fork Cache

CreeK near Lower Lake, Calif......................7...................... 3
SURFACE WATER SUPPLY OP PACIFIC SLOPE BASINS IN CALIFORNIA, 1947

SCOPE OF WORK

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

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

water year ending September 30, 1947. 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 11,100 gaging stations 

in the 48 States and also at many in the Territories of Alaska and Hawaii. In July 1947, 

5,810 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 13.

DEFINITION OF TERMS

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

herein are defined as follows:

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

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

whose average velocity is 1 foot per second.

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

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

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

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

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

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, 1947, 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 flov*. The records of stage are obtained either from 

direct readings on a nonrecording gage or from a water-stage recorder that gives a continuous record of the fluctuations. Measurements of discharge are made with a current 

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

discharge. Typical structures in use at gaging stations are shown in figure 1.

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

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

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

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

gage heights to the rating tables. 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 froa 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 shortly 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 

presented 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. JNORTH FORK CACHE CREEK NEAR LOWER LAKE, CALIF.

FIGURE 1. GAGING-STATION STRUCTURES.
4 SURFACE WATER SUPPLY, 1947, 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, its latitude and longitude as 

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

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

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

number of years indicated. It is given onl-y for stations for which there are 10 or more 

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

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

minimum gage height (unless it is of no importance). Unless otherwise qualified, the 

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

recorder or a nonrecording gage read at the time of the crest. Likewise the minimum discharge represents the lowest stage, unless otherwise qualified. Selected peak discharges 

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

some stations. This supplementary information is generally omitted for a station at which 

the drainage area of the stream is less than 10 or more than 10,000 square miles or at 

which, on most days, the peak discharge exceeds the mean discharge by less than 10 percent

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 

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

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

equipped with nonrecording gages, the table of daily discharge gives the discharge corresponding to 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 dally discharge. The column headed "Mean" gives the average flow in cubic 

feet per second during the month.

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

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

but Is omitted from succeeding reports.
SURFACE WATER SUPPLY, 1947, PART 11 s

ACCURACY OP FIELD DATA AND COMPUTED RESULTS

The accuracy of stream-flow data depends primarily on (1) the permanency of the stagedischarge re)ation 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 IS 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.

Many gaging stations on streams in the irrigated areas of the United States are situated above most of the diversions from those streams, and therefore the discharge recorded 

does not show the water supply available for further development, as prior aopropriatlons 

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.

854211 O - 49 - 2
6 SURFACE WATER SUPPLY, 1947, PART 11

Water-supply papers and other publications of ths 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, 

Goverraient 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 division 

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., 105 Engineering Building, University of Maryland.

Columbia, S. C.,207 Creason Building.

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

Harrisburg, Pa., 490 Sducation Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 205 Underwriters Building.

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.

Morgantown, W. Va., 407 Mineral Industries Building.

New Philadelphia, Ohio, Muskingum Watershed Conservancy District Building.

Ocala, Fla., 302 Post Office Building.

Pittsburgh, Pa., 515 Plaza Building.

Raleigh, N. C., 244 Educational Building.

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

Trenton, N. J., 228 Federal Building.

Washington, D. C., Federal Works Agency Building.

Williamsburg, Ky., State Highway Building.

West of the Mississippi River:

Albuquerque, N. Mex., 723 North Second Street.

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 CouncJl Building.

Pierre, S. Dak., 301 Federal Building.

Portland, Oreg., 606 Post Office Building.

Rolla, Mo., 211 Ramsey Building.

St. Louis, Mo., 1004 New Federal Bu-ilding.

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.

Tucson, hriz., 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.
PUBLICATIONS

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 1884-1901, 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 

23th A pt. 3 

14th A pt. 2

16th A, pt. 2 

B 140........

18th A, pt. 4 

W 15... ......

19th A, pt. 4

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. ........

Descriptive information only. 

Monthly discharge and descriptive information. ...............

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.

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

Year

1884 to September 189C. 

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.

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 1939, 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.
Numbers of water-supply papers containing results of stream measurements, 189

Year

1900 g... 

1901..... 

1902 ..... 

1903.....

1905..... 

1906..... 

1907-8... 

1909.....

1910. .... 

1911..... 

1912..... 

1913..... 

1914.....

1915. .... 

1916..... 

1917..... 

1918..... 

1919-20..

1921. .... 

1922..... 

1923..... 

1924..... 

1925.....

1326. .... 

1927..... 

1928..... 

1929..... 

1930.....

1931..... 

1932..... 

1933..... 

1934 ..... 

1935 .....

1936 ..... 

1937 ..... 

1938..... 

1939..... 

1940.....

1941.... . 

1942..... 

1943 ..... 

1944 ..... 

1945.....

1946.... . 

1947.....

1 ,..,..,.._ sg

47, h48 

65, 75 

82 

97

0165, p!66, q!67 

0201, p202, q203 

241 

261

301 

321 

351 

381

401 

431 

451 

471 

501

541 

561 

581 

601

641 

661 

681 

696

711 

726 

741 

756 

781

801

821 

651 

871 

891

951 

971 

1001 

1031

1051 

1081

b35, 36 

48 

65, 75 

b82, 83 

b97, 98

q!67, 168 

q203, 204 

242 

262

302 

322 

352 

382

402 

432 

452 

472 

502

542 

562 

582 

602

642 

662 

682 

697

712 

727 

742 

757 

782

802 

822 

852 

872 

892

952 

972 

1002 

1032

1052 

1082

3

36 

48, i49 

65, 75 

83 

98

169 

205 

243 

263

* 303 

323 

353 

383

403 

433 

453 

473 

503

543 

563 

583 

603

643 

663 

683 

698

713 

728 

743 

758 

783

803 

823 

853 

873 

893

953 

973 

1003 

1033

1053 

1083

4

36 

49 

65, 75 

m82, 83 

97

170 

206 

244 

264

304 

324 

354 

384

404 

434 

454 

474 

504

544 

564 

584 

604

644 

664 

684 

699

714 

729 

744 

759 

784

8O4 

824 

854 

874 

894

954 

974 

1004 

1034

1054 

1084

5

36 

49 

k65, 66, 75 

k83, 85 

k98, 99, nlOO

171 

207 

245 

265

285 

305 

325 

355 

385

405 

435 

455 

475 

505

525 

545 

565 

585 

605

625 

645 

665 

685

700

715 

730 

745 

760 

785

805 

825

855 

875 

895

925 

955 

975 

1005 

1035

1055 

1085

6

c36, 57 

49, J50 

66, 75 

84 

99

172 

208 

246 

266

286 

306 

32S 

356 

386

406 

436 

456 

476 

506

526 

546 

566 

586 

606

626

646 

666 

686 

701

716 

731 

746 

761 

786

8O6 

826 

856 

876 

896

926 

956 

976 

1006 

1036

1056 

1086

7 " '37 

50 

k65, 66, 75 

k83, 84 

k98, 99

k!69, 173 

k205, 209 

247 

267

287 

307 

327 

357 

387

4O7 

437 

457 

477 

507

527 

547

567 

587 

607

627 

647 

667 

687 

702

717 

732 

747 

762 

787

807 

827 

857 

877 

897

927

957 

977 

1007 

1037

1057 

1087

66

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

contained in Water-Supply Paper 39. Monthly discharge for 1899 in 21st Annual Report, part 4. 

b James River only. h 

c Gallatin River. i 

(i Green and Gunnison Rivers and Colorado River above J

Gunnison River.

e Mojave River only. k 

f Kings and Kern Rivers and south Pacific slope basins, m

Rating tables and index to Water-Supply Pa

contained in Water-Supply Paper 52. Mont

for 1900 in 22d Annual Report, part 4.

Wlssahickon and Schuylklll Rivers to James 

Scioto River.

Loup, Platte, and Elkhorn Rivers and tribu

Platte River.

Tributaries of Mississippi River from east

Lake Ontario and tributaries to St. Lawren
PUBLICATIONS

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

^ 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 Period 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

Joaquln 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............................................. 1884-1900

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

Massachusetts, Surface waters of......................................... 1845-1915

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

Oregon, Surface water supply of.......................................... 1878-1910

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

Vermont, Surface waters of............................................... 1875-1916

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. Hex., Utah, Wyo.) and Its utilization... 1888-1914 

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

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

at base stations in. 

Colorado River Basin (Arlz., Calif., Nev., N. Hex., 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 (Mali.e), Water resources of......................... 1890-1906

Milk River. See St. Mary and MllK 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.... j 1895-1920

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

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

Rio Grande Basin (Colo., N. Hex., 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; Mlssour!. and St. Mary

River Basin. 

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

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

107

298

299

300

447

597-E

636-D

636-E

637-A

74

197

415

230

370

850

424

492

870

156

469

395

617

918

916

517

618

198

317

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.

State reports containing compilations of records of discharge

Report Issued by

Alabama.......

Arkansas......

Colorado......

Connecticut...

Do.........

Florida.......

Georgia.......

Do.........

Illinois......

Do.........

Indiana.......

Do.........

Iowa..........

Do.........

Do.

1895-1915 

1857-1928 

1881-1935

1881-1938

1900-J927

1912-33

1898-1946

1895-1906

1907-19

1908-11

1900-1934

1923-27

1927-30

1873-1932

1873-1940

1941-42

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

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

Water resources of Colorado, Appendix 2,

Data on stream-gaging stations of

Colorado.1 

Water resources of Colorado, Appendix 3,

vols. 1 and 2, Stream-flow data of

Colorado. 

Bull. 44, Water resources of Connecticut.

5th biennial report.......................

Bull. 31, Springs of Florida..............

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

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

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

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

Pub. 72, Surface water supply of Indiana.. 

Pub. 112, Surface water supply of Indiana. 

Stream-flow records of Iowa...............

Water-Supply Bull. 1, Summaries of yearly

and flood flow relating to Iowa streams. 

Water-Supply Bull. 2, Surface water

resources of Iowa.

Geological Survey of Alabama. 

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.

Contains records of yearly discharge only.
10

SURFACE WATER SUPPLY, 1947, PART 11 

State reports containing compilations of records of discharge Continued

State

Do .........

Louisiana. ....

Minnesota. .... 

Missouri. ..... 

Do.... .....

Nebraska. ..... 

Do .........

New Hampshire. 

New Jersey ....

New Mexico... . 

North Carolina

North Dakota. .

Do ......... 

Do .........

Pennsylvania..

South Carolina 

Tennessee.. ...

Washington. ... 

Wisconsin. ....

Period

1924-28

1903-38

1929-37

1909-12 

1857-1926 

1927-39

1894-1914

1889-1922 

1892-1928

1888-1925 

1889-1923

1919-21

1882-1938 

1882-1944

1890-1911

1884-1946 

1874-1924

1878-1933 

1888-1914

Report

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

Geol. Bull. 16, Surface water supply of 

Louisiana.

major streams In Maryland.

waters of Maryland and the Potomae 

River Basin. 

Water-resources investigation of Minnesota. 

Vol. 20, 2d series, Water resources of 

Missouri. 

Vol. 26, 2d series, Surface waters of 

Missouri.

sources of Montana. 

1st hydrographic report ....................

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

Bull. 33, Surface water supply i2 New 

Jersey .

New Jersey.

New Jersey. 

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

Bull. 34, Discharge records of North 

Carolina streams.

Carolina streams.^

Basin.

Basin. 

Report to Governor of North Dakota on 

flood control. 

Surface water in North Dakota. ............. 

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

records of Ohio.

flow-duration tables.

Oregon .

Oregon .

Oregon .

Oregon . 

Report 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^. . . .

( Potomae, Rappahannock, and York River 

Basins) .

(James River Basin).

(Roanoke and Chowan River Basins).

(New, 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.

consin to Legislature on water powers.

Issued by

State Board of Agriculture.

Department of Conservation.

Water Resources Commission.

and Water Resources . 

State Drainage Commission.

Missouri Bureau of Geology 

and Mines. 

Missouri Geological Survey 

and Water Resources .

ment Station. 

Bureau of Water Power, Irrigation, and Drainage.

Public Service Commission. 

Department of Conservation 

and Development.

Office of the State Engineer. 

Department of Conservation 

and Development.

Do.

State chief engineer.

State Planning Board. 

State Water Conservation 

Commission.

Ohio State University.

Division of Conservation 

and Natural Resources .

Ohio State University.

Water Supply Commission of 

Pennsylvania .

Waters .

South Carolina Research, 

Planning and Development 

Board . 

Department of Education.

mission.

Department of Conservation 

and Development. 

Railroad Commission of Wisconsin.

2 Contains records of maximum and minimum daily, weekly, and monthly discharge and yearly mean 

discharge.

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

The reports listed in the foregoing tables contain the customary reedrds 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 numbers and titles of these reports:

Water-Supply _. fc . 

Paper Tltle

88 The Passaic flood of 1902.

92 The Passaic flood of 1903.

96 Destructive floods in the United States in 1903.

147 Destructive floods in the United States in 1904.

162 Destructive floods in the United States in 1905.

334 The Ohio Valley flood of March-April 1913.

426 Southern California floods of January 1916.

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

488 The floods in central Texas in September 1921.

520-G Some floods in the Rocky Mountain region.

636-C The New England flood of November 1927.

771 Floods in the United States, magnitude and frequency.

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

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

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

796-G Major Texas floods of 1935.

798 The floods of March 1936, part 1,

799 The floods of March 1936, part 2,

800 The floods of March 1936, part 3,

816 Major Texas floods of 1936.

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

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

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

843 Floods of December 1937 in northern California.

844 Floods of March 1938 in southern California.

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

867 Hurricane floods of September 1938.

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

914 Texas floods-of 1938 and 1939.

966- Minor floods of 1938 in North Atlantic States.

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

967-B Flood of July 5, 1939, in eastern Kentucky.

967-C Flood of August 21, 1939, in town of Baldwin, Maine.

994 Cloudburst floods in Utah, 1850 to 1938.

997 Floods in Colorado.

1046 Texas floods of 1940.

1066 Floods of 1940 in southeastern States.

1080 Floods of May-June 1948 in Columbia River Basin.

New England rivers.

Hudson River to Susquehanna River region.

Potomac, James, and upper Ohio Rivers.

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The following table lists gaging stations for the area covered by this report at which 

records of daily discharge were collected during the water year October 1946 to September 

1947 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.

Records of discharge collected by agencies other than the Geological Survey

Stream

Alameda storm drain. ..... 

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

Allso Wash...............

Azusa conduit diversion . . 

Azusa conduit diversion..

Lo cat Ion

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

Short St . ,_Wilmar , Calif ...............

Nordhoff St., near Northrldge, Calif...

Calif.

near Lake view, Or eg. 

San Gabriel dam 1, Calif. ..............

Garcia Canyon, Calif. . .................

Period

1937-47 

1929-47 

1939-47

1935-47f 

1933-47f

Collected by

'Orange County Flood 

Control District. 

Los Angeles County 

Flood Control District. 

Do. 

Do.

Los Angeles County Flood 

Control District. 

Do.

t Records for some earlier years contained In water-supply papers of the Geological Survey.
12 SURFACE WATER SUPPLY, 1947, PART 11

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

Stream

Azusa Duarte tunnel diversion.

Batavia storm drain....... 

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

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

Calleguas Creek. .......... 

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

Cerritos Channel ..........

Clear Lake Reservoir 

(elevation and discharge) 

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

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

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

Dominguez Channel. ........ 

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

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

Pullerton relief channel..

Gerber Reservoir (elevation and discharge).

La Veta Avenue storm 

drain.

Little Santa Anita Creek.. 

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

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

Lost River. ...............

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

Monrovia storm drain...... 

Montebello storm drain.... 

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

Peters Canyon Wash ........

Rio Hondo diversion. ......

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

San Diego Creek. ..........

* Monthly discharge 1919-

Location

Mouth of San Gabriel Canyon, near Azusa, 

Calif.

Parker St., north of Santiago Creek, near 

Orange, Calif. 

SE£ sec. 7, T. 38 S., R. 20 E., just downstream from Cox Creek, near Lakeview, 

Oreg. 

Below Big Dalton Dam, near Glendora, 

Calif.

Ventura Blvd., near West Los Angeles, 

Calif. 

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

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

SW£ sec. 2, T. 38 S., R. 19 E., 400 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 ............

NE£ 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 ............ 

SW£ sec. 16, T. 41 S., R. 18 E., 

18 miles southwest of Lakeview, Oreg. 

At bridge on Roosevelt Highway, Calif....

Below Eaton Wash debris dam, near 

Pasadena, Calif. 

Brighton Way west of Magnolia Ave., 

Fullerton, Calif. 

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

Lorella, Oreg.

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

2 miles upstream from mouth, near 

Roscoe, Calif.

La Veta Ave., east of Santiago Creek, 

southeast of Orange, Calif. 

Devonshire Ave., near Chatsworth, 

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.

Mariposa St., near Burbank, Calif ......... 

Harpold Dam, in S|- sec. 19, T. 39 S., 

R. ll| 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.

PeckRd., Monrovia, Calif ................ 

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

Parthenia St., near Van Nuys, Calif...... 

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

Below Puddingstone Dam, near San Dimas, 

Calif.

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. 

24; daily discharge 1924-47.

Period

1918-47

1942-47 

1935-47

1945-47 

1929-47

1940-47 

1934-47

1934-47 

1945-47

1945-47 

1946-47

1942-47

1919-47* 

1928-47

1945-47

1941-47

1940-47 

1945-47

1930-47

1930-47 

1940-47

1941-47 

1926-47 

1923-47 

1945-47

1936-47 

1939-47

1929-47

1938-47

1928-47

1929-47 

1938-47 

1945-47 

1923-47

1927-47

1932-47 

1932-47 

1928-47 

1930-47

1927-47

1932-47

1944-47 

1928-47 

1931-47 

1941-47

Collected by

Los Angeles County 

Flood Control District. 

Corps of Engineers. 

Orange County Flood 

Control District. 

Oregon State engineer.

Los Angeles County 

Flood Control 

District. 

Do.

Ventura County Water 

Survey . 

Do. 

Oregon State engineer.

Los Angeles County 

Flood Control 

District. 

Cooperative Snow Investigations Corps 

of Engineers, and 

U. S. Weather Bureau. 

Los Angeles County 

Flood Control 

District. 

Bureau of Reclamation.

Los Angeles County 

Flood Control District and Corps of 

Engineers . 

Oregon State engineer.

Los Angeles County 

Flood Control 

District. 

Do. 

Oregon State engineer.

Los Angeles County Flood 

Control District. 

Do. 

Do.

Orange County Flood 

Control District. 

Bureau of Reclamation.

Do.

Los Angeles County 

Flood Control 

District. 

Orange County Flood 

Control District. 

Los Angeles County 

Flood Control 

District. 

Do.

Do. 

Do.

Do. 

Do. 

Bureau of Reclamation. 

Do.

Los Angeles County 

Flood Control 

District. 

Do. 

Do. 

Do. 

Orange County Flood

Los Angeles County 

Flood Control 

District. 

Do.

Do. 

Do. 

Do. 

Orange County Flood 

Control District.
COOPERATION

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

Stream

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

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

Thomas Creek. .............

Thompson Creek spreading 

ground Intake.

branch) . 

Verdugo storm drain. ......

Villa Park storm drain.... 

Walnut Avenue storm drain.

West Anahelm storm drain..

West Pork San Oabrlel 

River.

Location

San Dlmas, Calif.

Valley Blvd., near El Monte, Calif..... 

Florence St., near Santa Fe Springs, 

Calif.

Olive, Calif.

NW£ sec. 22, T. 38 S., R. 19 E., Just 

upstream from Barnes spring, 7 miles 

northwest of Lakevlew, Oreg.

mont, Calif. 

Thompson Creek Dam near Claremont, 

Calif.

Calif.

Calif.

Estelle Ave., Olendale, Calif ..........

Center Dr. at Lincoln St., near Villa 

Park, Calif. 

Walnut Ave. at Prospect Ave., east of 

Orange, Calif.

Manchester Blvd., west of Anahelm, 

Calif. , 

Half a mile below San Oabrlel dam 2, 

Calif.

Period

1937-47 

1934-47

1934 47

1945-47

1940-47

1936-47

1936-47 

1928-47

1936-47 

1934-47

Collected by

Control District.

Do. 

Do.

Control District.

Control District.

Oregon State engineer.

Control District. 

Do.

Do.

Los Angeles County Flood 

Control District and 

Corps of Engineers. 

Orange County Flood Control District. 

Do.

Control District. 

Orange County Flood Control District. 

Los Angeles County Flood 

Control District.

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; tne East Bay 

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

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

Santa Barbara, Santa Cruz, and Lodi. In Oregon the work was done under cooperative agreement with the State of Oregon, C. E. Stricklin, State engineer.

Financial assistance was furnished by the Corps of Engineers for the operation of 43 

gaging stations and by the Bureau of Reclamation of the United States Department of the 

Interior for the maintenance of 41 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 Alaraeda 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., Emma Rose & Hobart Estate Co., and Merced, Modesto, Table Mountain, 

Thermalito, Turlock, and Woodbrldge Irrigation Districts; in Oregon, by The California 

Oregon Power Co.

DIVISION OF WORK

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
14 SURFACE WATER SUPPLY, 1947, PART 11

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. Canfleld. The work In Oregon was done 

In collaboration with C. E. Strlcklln, State engineer.

The records were reviewed and the manuscript prepared for publication under the direction of B. J. Peterson, chief, annual reports section.
TIA JUANA RIVER BASIN 15

Cottonwood Creek at Morena Dam, Calif.

Location (revised).- Staff gage, lat. 32°41'00", long. 116°32'55", in SW£ sec. 14, T. 17 

a., H. 4 i!. , at Morena Dam. Datura of gage is 2,882.4 feet above mean sea level.

Drainage area.- 120 square miles.

Records available.- January 1916, October 1936 to September 1947.

Remarks.- Records of runoff represent 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. Spillway crest raised 

from gage height, 155.00 feet to 157.00 feet in October 1946. Capacity of reservoir 

at gage height 157.00 feet, 56,870 acre-feet. No diversion above station. Water is 

released down Cottonwood Creek to Barrett Reservoir as required.

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

Revisions - Records given in following table for water year 1946, supersede those 

puDiisned in Water-Supply Paper 1061.

Monthly runoff, October 1945 to September 1947

Month

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

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

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

Water year 1945-46.

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

Calendar year 1946.

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

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

Water year 1946-47.

Morena Reservoir t

Gage height 

(feet)

157.01 

156.50 

156.21

155.66 

155.98 

156.16 

155 ".87 

154.51 

152.90 

152.32 

152.02 

151.42

-

150.98 

150.66 

151.18

-

151.49 

151.53 

151.59 

151.16 

150.42 

149.56 

142.83 

141.51 

139.63 

132.80

-

Contents 

(acre-feet)

56,886 

56,091 

55,639

54,791 

55,281 

55,561 

55,112 

53,046 

50,664 

49,827 

49,395 

48,546

-

47,924 

47,480 

48,206

-

48,644 

48,701 

48,786 

48,178 

47,148 

45,968 

37,302 

35,728 

33,562 

26,567

-

Change 

In 

contents 

(acrefeet)

-795 

-452 

-848

+490 

+280 

-449 

-2,066 

-2,382 

-837 

-432 

-849 

-622

-8,962

-444 

+726 

+438

-6,147

+57 

' +85 

-608 

-1,030 

-1,180 

-8,666 

-1,574 

-2,166 

-6,995

-21,356

Draft 

(acrefeet)

19 

19 

3,951

27 

17 

983 

2,223 

1,686 

0 

0 

O 

0

8,925

0 

0 

0

4,936

O 

96 

791 

602 

606 

6,488 

606 

1,347 

5,717

16,253

Evaporation 

(acrefeet)

629 

396 

346

262 

233 

411 

689 

928 

1,170 

984 

1,080 

834

7,962

500 

220 

222

7,533

263 

274 

402 

600 

791 

884 

1,066 

771 

584

6,577

Spill 

plus 

leakage 

(acrefeet)

225 

229 

168

203 

261 

261 

169 

111 

95 

99 

83 

80

1,984

78 

85 

102

1,627

87 

85 

95 

88 

88 

88 

88 

88 

88

1,060

Runoff 

(acrefeet)

78 

192 

3,617

982 

791 

1,206 

1,015 

343 

428 

651 

314 

292

9,909

134 

1,031 

762

7,949

407 

540 

680 

260 

305 

-1,206 

186 

40 

-606

2,533
18 TIA JUANA RIVER BASIN

Cottonwood Creek at Barrett Dam, near Dulzura, Calif.

Location (revised).- Staff gage, lat. 32°40'45", long. 116°40'20", in NWir sec. 22, T. 17 

S., K. a E., at Barrett Dam, 17 miles northeast of Dulzura. Altitude of permanent 

spillway, 1,607 feet.

Drainage area.- 250 square miles.

Records available (revised).- October 1945 to September 1947. January 1906 to December 

iyi5, 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 rainran 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. 

Gage height of permanent spillway, 160.88 feet; of top of flash gates on spillway, 

168.88 feet. Reservoir capacity, at top of flash gates on spillway, 42,796 acre-feet. 

Regulation at Morena Dam. Dulzura Conduit (see p. 20) diverts water at Barrett Dam 

and carries it out of basin to Lower Otay Reservoir (see p. 23).

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

Monthly runoff, October 1945 to September 1947

Month

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

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

Water year 1945-46..

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

Calendar year 1946..

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

Water year 1946-47 . .

Barrett Reservolrt

Gage height 

(feet)

152.07 

151.19 

146.97

154.02 

152.36 

150.77 

151.00 

153.06 

152.83 

150.51 

146.77 

142.44

-

138.51 

134.26 

131.56

-

127.97 

123.18 

118.88 

114.38 

107.52 

98.90 

115.32 

109.62 

104.95 

116.37

-

Contents 

(acre-feet)

29,654 

29,056 

26,297

31,016 

29,855 

28,774 

28,927 

30,341 

30,181 

28,601 

26,170 

23,501

-

21,222 

18,926 

17,571

 -

15,896 

13,885 

12,283 

10,785 

8,780 

6,646 

11,085 

9,360 

8,103 

11,428

-

Change 

In 

contents 

(acre 

feet)

-598 

-2,759 

+4,719

-1,161 

-1,081 

+153 

+1,414 

-160 

-1,580 

-2,431 

-2,669 

-2,279

-8,432

-2,296

-1,355 

-1,675

-15,120

-2,011 

-1,602 

-1,498 

-2,005 

-2,134 

+4,439 

-1,725 

-1,257 

+3,325

-9,794

Draft 

(acrefeet)

663 

2,908 

2,338

2,127 

1,779 

2,053 

2,032 

2,033 

1,321 

2,259 

2,532 

2,196

24,241

2,367 

1,808 

2,222

24,729

2,474 

2,075 

2,453 

2,762 

2,770 

2,643 

2,389 

2,560 

2,432

28,955

Evaporation 

(acrefeet)

288 

190

161

151 

154 

192 

280 

366 

492 

447 

454 

344

3,519

218 

128 

79

3,305

84 

75 

100 

127 

129 

167 

249 

171 

159

1,686

Spill 

plus 

leakage 

(acrefeet)

2

1 

2

3 

2 

2 

2 

2 

1 

1 

1 

1

20

1 

1

1

18

1 

1 

0 

0 

0 

0 

0 

0 

0

5

Runoff 

(acrefeet)

355 

340 

7,220

1,120 

854 

2,400 

3,728 

2,241 

234 

276 

318 

262

19,348

290 

582 

627

12,932

548 

549

1,055 

884 

765 

7,249 

913 

1,474 

5,916

20,852

t On first day of month.
TIA JUANA RIVER BASIN 17

Cottonwood Creek above Tecate Creek, near Dulzura, Calif.

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

H. a E., 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 1947.

Average discharge.- 11 years, 18.2 second-feet.

Extremes.- Maximum discharge during year, 9.2 second-feet Nov. 23 (gage height, 1.80 

feet); no flow during most of year.

1936-47: Maximum discharge, 2,780 second-feet Feb. 7, 1937 (gage height, 9.65 

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

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

Remarks.- Records good. Flow regulated by Barrett and Morena Reservoirs, 10 and 18

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

conduit (see p. 20).

Discharge, in second-feet, water year October 194,6 to September 1947

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

2b

26

27

28

29

30

31

Oct. Nov.

o

o

o0

o

o

o

0

0o 

0

o

o

.4.1

o

o

o

o

o

o

0

2.0

2.2

.9

.5

.3

.3

.2

.2

-

Dec.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.3

1.0

2.5

2.5

1.5

1.1

.9

Jan.

0.7

.6

.5

.5

.5

.4

.4

.4

.3

.3

.3

.4

.4

.4

.3

.3

.3

.3

.3

.4

.4

.4

.4

.5

.5

.5

.5

.7

1.2

1.1

.8

Feb.

0.5

.5

.5

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.4

.6

.5

.5

.5

.4

.3

.3

.3

.3

.5

.5

_

-

Month

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

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

Calendar year 1946 ..............'.........

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

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

Water year 1946-47 ......................

Mar.

0.4

.4

.4

.8

1.2

.9

.6

.5

.5

.4

.3

.3

.2

.1

.1

.1

.2

.2

.3

.3

.5

.5

.4

.4

.2

.1

.1

.2

.3

.2

.2

Apr.

0.1

.2

.3

.8

.5

.3

.2

.1

.1

.1

0

O

o

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

Secondfoot-daya

13.5

413.3

O

60.1

May

Maximum

2.5

22

O

2.5

June

Minimum

.1

o

o

0

July Aug.

Mean

.24

.44

1.13

.48

0

.16

Sept.

Runoff in 

acre-feet

0

14

27

82O

30

5.4

O

119
TIA JUANA RIVER BASIN

Tia Juana River near Dulzura, Calif.

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

R. 2 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 1947. 

Average discharge.- 11 years, 29.7 second-feet.

Extremes.- Maximum discharge during year, 23 second-feet Nov. 23 (gage height, 2.46 

feet); no flow during several periods.

1936-47: 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 

velocity-mean depth and area studies; no flow during part of most years.

Remarks.- Records fair. Flow regulated by Morena and Barrett Reservoirs on Cottonwood 

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2

3

4 

5

6

Y

8

9

10

11

13 

14

15

16

18

19

20

22

23

24

25

26

2Y

28

29

30

31

Oct.

1\ eO.03

0

0

0

0

0

o

o 

o

0

0

o

o

0

0

0

e.02

Nov.

1

1

V eO.03

J

.1

.2

.1

.1

.1

.1

.4 

3.8

.6

.2

.1

.1

.1

.1

.2

.1

3.9

7.0

2.5

1.5

1.1

.8

.6 

.6

-

Dec.

0.4 

.4

.4

.4 

.4

.4

.6

.4

.4

.4

.2

.2

.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

1.5

8.2

9.5

4.9 

3.2

2.5

Jan.

2.0 

1.5

1.1

1.1 

1.1

.8

.8

.6

.6

.6

.6

.6

.8 

.8

.6

.6

.6

.4

.2

.2

.4

.4

.8

.8

.6

.8

.4

1.1

8.2 

4.9

3.2

Feb.

1.5 

1.5

1.5

1.5 

1.5

1.5

1.5

2.0

2.0

2.0

2.0

1.5

1.1 

.8

.4

.2

2.0

3.2

2.5

2.0

1.5

.8

.6

.2

.4

.8

3.2

2.5

-

Month

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

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

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

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

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

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

Water year 1946-47 .... ...............

Mar.

2.0 

1.5

.6

4.9

11

7.0

2.5

2.0

1.5

.8

.8

.6

.2

.2

.4

.4

.4

.6

.6

.6

.8

.8

.8

.6

.4

.2

.2

.2 

.2

.2

Apr.

0.1 

.1

.1

.2 

.2

.2

.1

.1

.1

.1

.1

> e.04

.1

.2

.2

.2

.2

.2

.2

.1

| e.04

-

Second 

foot-days

37.2

37 2

43 2

0

189.98

May

0.01 

0

0

0

o

0

0

0

> e.02

O

O

0

O

0

0

0

0

0

S e.02

Maximum

7.0

9.5

0

11

June

> e0.04

.

.1

I e.03

Minimum

o

.2

0

0

July

> eo.02

o

o

0

0

o

0

0

0

0

0

o

o

0

0

0

0

0

0

o

0

0

Aug.

Mean

0.012

,819

1.20

4.64

1.51

1.39

.009

.005

0

0

.520

Sept.

Runoff in 

acre-feet

0.8

49

74

3,360

74

84

86

6.4

.6

3.1

.3

0

0

378

e Daily dischar leas thj.n 0.1
TIA JUANA RIVER BASIN 19

Tla Juana River near Nestor, Calif.

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

a ana 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 1947. 

Average discharge.- 12 years (1914-15, 1936-47), 89.1 second-feet.

Extremes.- Maximum discharge during year, 35 second-feet Nov. 14 (gage height, 2.51 feet); 

no now during several periods.

1936-47: Maximum discharge, 17,700 second-feet Feb. 7, 1937 (gage height, 8.20 

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

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

Remarks.- Records good. Flow regulated by 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 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

2fi

27

28

29

30

31

Oct.

2.8

5.2

5.2

5.2

6.1

6.6

5.6

5.2

5.6

5.6

5.2

4.7

3.9

2.5

5.2

5.6

7.1

5.2

5.2

5.6

4.3

3.5

4.3

6.1

7.1

6.6

7.7

11

9.6

7.7

7.7

NoiT

7.1

6.1

6.1

6.1

5.2

4.3

2.5

3.5

7.7

7.7

7.7

8.4

13

28

22

15

13

12

12

12

11

8.4

15

23

17

15

13

12

12

11

-

Dec.

11

11

11

11

10

10

11

11

10

10

11

10

9.6

9.6

10

10

11

10

9.6

9

9

8.4

8.4

9.6

10

16

20

21

14

13

12

Jan.

11

9.6

9.0

9.6

9.6

9.6

9.6

8.4

8.4

7.7

7.1

7.7

10

- 12

9.0

10

7.7

7.7

8.4

8.4

9.0

7.1

6,1

6.6

7.1

7.7

8.4

7.7

8.4

5.2

3.9

Feb.

3.2

3.2

6.6

7.1

6.1

3.5

3.2

2.5

2.3

4.7

4.7

4.7

3.2

2.5

3.5

4.7

10

13

12

11

6.6

5.6

9.6

9.0

6.6

6.1

5.6

4.7

-

-

-

Month

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

Calendar year 1946 ......................

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

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

Water year 1946-47 ......................

Mar.

4.7

4.3

6.1

6.6

7.7

12

10

10

11

12

11

9.6

8.4

6.1

3.2

2.5

2.0

2.. 3

2.3

2.0

1.6

1.2

1.2

3.9

3.9

3.2

2.8

2.8

1.8

.9

1.2

Apr.

0.6

.2

.3

.9

.9

1.4

1.8

1.6

1.2

.8

.2

0

0

0

.3

.4

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

-

Secondfoot-days

347.2

3,584.0

O

1,475.9

May

0

0

0

.1

4.7

5.6

2.8

2.3

2.0

1.6

0

0

1.2

.4

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

Maximum

28

21

154

0

0

28

June

Minimum

2.5

8.4

0

3.9

.9

0

0

0

July Aug.

Mean

11.2

11.2

9.82

8.31

5.11

.67

0

0

4.O4

Sept.

Runoff in 

acre-feet

355

668

689

7,110

511

328

314

21

41

0

0

0

0

2,930
TIA JUANA RIVER BASIN

Dulzura conduit near Dulzura, Calif.

Location.- Water-stage recorder and Cippoletti weir, lat. 32°37'05", long. 1160 45'50", 

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

miles east of Dulzura. Elevation of weir crest, 1,446.41 feet.

Records available.- January 1909 to September 1915, May 1940 to September 1947.

Average discharge.- 13 years (1909-15, 1940-47), 17.4 second-feet.

Extremes.- Maximum daily discharge during year, 48 second-feet on many days; no flow

1909-15, 1940-47: Maximum daily discharge, 65 second-feet Feb. 4, 1911; no flow 

for periods each year.

Remarks.- Records excellent except those for July 8, which are fair. Conduit diverts 

from Cottonwood Creek at Barrett Dam in NW£ sec. 22, T. 17 S., R. 3 E.

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.

34

34

34

34

34

34

33

33

33

33

34

40

40

40

40

39

39

39

39

39

40

39

37

37

37

37

37

37

36

36

36

Nov.

35

35

35

35

35

36

36

36

36

36

36

36

29

.6

.1

.1

.1

4.0

28

38

37

37

30

22

30

37

37

37

36

36

-

Dec.

36

35

35

35

35

35

34

34

34

34

34

33

34

36

39

40

40

40

40

39

39

39

38

38

36

30

25

25

24

16

30

Jan.

39

42

41

41

41

41

41

41

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

38

26

25

9.1

Feb.

26

34

34

34

38

40

40

40

40

40

40

40

40

40

40

39

38

27

27

28

33

33

32

32

32

34

36

37

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

Bay. .......................................

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

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

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

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

Water year 1946-4? ......................

Mar.

37

37

38

37

32

32

32

32

32

32

32

32

32

32

34

35

35

35

37

41

42

42

42

42

44

46

47

46

46

46

46

Apr.

46

48

47

46

46

46

46

47

47

46

48

48

48

48

48

48

47

47

46

46

47

48

47

48

47

46

36

7.9

20

36

Seccndfoot-days

1,134

865. 9

1,062

11,915.4

1,185.1

994

1,175

1^327

1 , 266

1,144.1

1 232

1*164

13,871.0

May

43

47

48

46

43

43

44

45

46

46

46

46

46

46

45

45

44

44

43

42

41

41

41

40

40

39

39

38

37

37

36

Maximum

40

38

40

41

42

40

47

4:8

48

48

44

40

40

48

June

36

35

35

36

37

37

39

40

41

41

42

42

44

45

45

45

45

45

45

46

47

48

46

43

44

45

45

4S

42

42

Minimum

33

.1

16

0

9.1

26

32

7.9

36

35

0

39

30

0

July

41

40

40

40

29,

.1

0

a 10

39

41

41

44

44

44

43

42

41

41

41

41

41

40

40

40

40

41

40

40

40

40

40

Aug.

40

40

40

40

40

40

40

40

40

39

40

40

40

40

40

40

39

39

40

40

40

40

40

40

40

39

39

39

39

40

39

Mean

36.6

28 . 9

34.3

32.6

38.2

35 . 5

37 > 9

44.1

A.tc, 1? .0R

42 . 2

36 . 9

39 . 7

 xo o

 JO .0

38.0

Sept.

40

39

35

30

38

40

40

40

39

40

40

40

39

39

40

39

39

39

39

40

40

39

38

38

39

39

39

38

39

40

Runoff in 

acre-feet

2,250

1,720

2,110

23,650

2 350

1*970

2 330

2*620

2,630

2,510

2,270

2,440

2,310

27,510

a No gage-height record; discharge computed on basis of 

of Jamul Creek near Jamul.

alve settings at Barrett Dam and records
TIA JUANA RIVER BASIN 21

Campo Creek near Campo, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 32 0 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 1947. 

Average discharge.- 11 years, 5.57 second-feet.

Extremes.- Maximum,discharge during year, 26 second-feet Nov. 23 (gage height, 1.04 

feet); no flow during several months.

1936-47: 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 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.

0.2 

, e.04

.1

.1 

.1 

.1

> e.04

.2 

.3 

.3 

.2 

.2

Nov.

0.2 

.2 

.1

.1

.1 

.1 

1.8 

.2

.1

.2

1.4 

2.4 

.5

.2 

.1 

.1 

.1 

.2

.4 

.4 

6.2 

5.0 

1.9

1.0 

.7 

.7 

.6 

.6

Dec.

0.6 

.6 

.6 

.6

.8 

.8 

.8 

.8 

.8

.7

.7 

.7 

.7

.8 

.7 

.7 

.7 

.6

.6 

.7 

.7 

.7 

.8

2.9 

9.1 

4.7 

3.5 

2.1 

1.5

Jan.

1.3 

1.2 

.9 

.8

1.2

1.0 

1.0 

.9 

.7

.8

1.3 

1.2 

1.0

1.0 

1.1 

1.0 

1.2 

1.3

1.0 

1.1 

1.2 

1.3 

1.3

1.4 

1.2 

1.7 

3.8 

2.8 

2.4

Feb.

1.9 

1.8 

1.7 

1.5

1.6 

1.6 

1.6 

1.7 

1.7

1.5

1.5 

1.5 

1.4

1.4 

1.8 

2.2 

2.0 

1.8

1.7 

1.5 

1.5 

1.3 

1.0

.8 

.8 

.9

Month

Octo 

Nove 

Dece

Ca

Jami 

Febri 

Haro 

Apri 

Hay.

June 

July 

Augu 

Sept

Wa

liber.. ..................................

endar year 1946 

iry -

L. .....................................

st .....................................

ter year 1946-47 ...............

Mar.

0.8 

.8 

.8 

1.9

1.2 

1.0 

I.O 

1.0 

1.0

1.1

.8 

.8 

.8

.7 

.7 

.7 

.7 

.8

.8 

.7 

.6 .5' 

.4

.4 

.5 

.5 

.5 

.5 

.4

Apr.

0.4 

.4 

.5

.6

.4

.4 

.3 

.4 

.4

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1

Seoondfoot days

2.64 

25.8 

40.4

786.54

40.1 

43.0 

24.8 

7.2 

2.90 

.90 

0 

0 

0

187.74

May

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.2

.1

.1 

.2 

.1

.1 

 e.06

.1 

.1 

.1 

.1 

.1

Maximum

0.3 

6.2 

9.1

19

3.8 

2.2 

1.9 

.6 

.2

0 

0 

0

9.1

June

. eO.06 

, e.02 

, e.Ol

Uinimum

0.1 

.6

0

.7 

.8 

.4 

.1

0 

0 

0

0

July Aug.

Mean

0.085 

.86 

1.30

2.15

1.29 

1.54 

.80 

.24 

.094 

.050 

0 

0 

0

.514

Sept.

Runoff in 

acre-feet

5.2 

51 

80

1,560

80 

85 

49 

14 

5.8 

1.8 

0 

0 

0

372

e Daily discharge less than 0.1 sec.-ft.

854211 O - 49 - 3
OTAY RIVER BASIN

Jamul Creek near Jamul, Calif.

Location.- Water-stage recorder and broad-crested weir with 5-foot venturi flume for 

 low-water notch, lat. 32°38'10", long. 116°53'05", in NE^ sec. 4, T. 18 S., R. IE., 

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 Jamul. Altitude of 

gage, about 500 feet.

Drainage area.- 72 square miles.

Records available.- April 1940 to September 1947.

Extremes . - Maximum daily discharge during year, 48 second-feet on many days in April; 

minimum daily discharge, 2.0 second-feet Nov. 18.

fee

c, . secon-ee ov. .

1940-47: Maximum discharge, 890 second-feet Feb. 23, 1944 (gage height, 3.45 

et); minimum daily, 0.1 second-foot Oct. 12-23, 1940, Oct. 19-27, 1944.

Remarks . - Records good. Water diverted from Cottonwood Creek by Dulzura conduit discharges to Jamul Creek via Dulzura Creek and is included in records for this station 

(see p. 20) .

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

23 HA

25

26

27

Jtt»

29

30

31

Oct.

33

33

33

32

32

32

32

32

32

31

32

38

38

38

38

39

38

38

38

38

38

39

37

36

36

36

37

37

37

36

36

Nov.

36

35

35

35

35

37

37

39

37

37

37

36

38

12

5.4

3.5

2.5

2.0

16

34

35

36

36

23

27

35

36

36

36

35

-

Dec.

35

35

34

34

34

34

34

34

34

33

33

32

32

34

37

38

39

39

38

38

38

37

37

37

37

32

29

26

25

17

28

Jan.

35

40

40

40

40

40

40

40

40

40

40

40

41

40

40

40

40

40

39

39

39

39

39

39

39

38

38

40

29

27

15

Feb.

22

34

34

35

38

40

41

41

41

41

40

40

40

40

40

40

40

29

28

28

33

33

33

5Z

33

33

36

37

_

-

Month

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

Calendar year '1946 ......................

May

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

Water year 1946-47 ......................

Mar.

37

37

38

39

34

33

33

33

33

33

33

32

32

32

33

36

36

36

36

41

43

43

43

43

44

46

47

47

47

47

47

Apr.

47

48

48

48

48

47

48

48

48

48

48

48

48

48

47

47

47

47

47

46

46

48

48

48

48

48

46

12

16

31

-

Secondfoot-days

1,044

12,419.2

342

1 082

1,123

13,481.7

Hay

39

44

46

45

42

41

43

44

44

45

45

44

45

45

44

44

43

43

42

42

41

41

41

40

39

39

39

38

37

36

35

Maximum

39

39

39

92

4.0

42

48

June

34

34

34

34

35

36

37

38

39

40

41

41

41

43

43

43

43

43

43

44

44

44

44

41

41

41

41

41

39

38

Minimum

17

.7

32

2 8

34

28

2.0

July

38

37

36

36

33

8.8

4.7

2.8

27

36

38

40

41

40

41

39

38

37

37

36

36

36

36

36

36

35

35

35

35

35

35

Aug.

35

36

35

35

35

34

35

35

35

35

35

35

36

36

35

35

35

35

35

35

35

35

35

35

35

35

34

34

34

34

34

Mean

29 5

33.7

34.0

33 4

34 9

37.4

36.9

Sept.

34

34

32

28

37

39

39

39

39

39

39

38

38

38

38

38

38

37

38

38

38

38

36

37

38

38

. 38

38

40

42

-

Runoff in 

acre- feet

2,070

24,610

2,230

26,750
OTAY RIVER BASIN 23

Otay River at Savage Dam, Calif.

Location (revised).- Staff gages at dams of two contiguous reservoirs, the lower ons being 

at iat. 3H"3t>'3t>", long. 116°55'30", in NW-J sec'. 18, T. 18 S., R. 1 E., at Savage Dam, 

at Lower Otay Reservoir. Datum of gage at Upper Otay Dam is 477.50 feet above mean sea 

level. Datum of gage at Savage Dam is 347.20 feet above mean sea level.

Drainage area..- 98 square miles at Savage Dam.

Hecords available.- October 1945 to September 1947. October 1936 to September 1946, computea runoff rrom Otay River Basin above Savage Dam.

Correction.- Records published in previous water-supply papers for water years 1937 to 

1946, were intended to represent computed runoff from Otay River Basin above Savage 

Dam, and not total flow into Lower Otay Reservoir as stated in those papers.,

Remarks.- Records of runoff given herein 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. 

Capacity and area ratings for Upper Otay Reservoir are dated June 1916; for Lower Otay 

Reservoir, October 1922. Capacities of reservoirs at spillway levels, as shown by 

these ratings, are 2,590 acre-feet in upper reservoir and 56,310 acre-feet in lower 

reservoir. Gage height of spillway of upper reservoir, 72.02 feet; gage height of 

tops of flash gates on main spillway of lower reservoir, 143.50 feet. Dulzura Conduit 

(see p. 20) carries water from Barrett Reservoir on Cottonwood Creek (see p. 16) to 

Dulzura Creek, whence the water is carried to Lower Otay Reservoir by Jamul Creek (see 

p. 22). No diversions above reservoirs. Water from these reservoirs is used for 

municipal supply by city of San Diego.

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

Monthly runoff, October 1945 to September 1947

Month

October 1945. ....

December. ........

January 1946 .....

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

September ........

Water year 

1945-46...... .

October'1946. ....

December. ........

Calendar 

year 1946.....

January 1947 .....

Water year 

1946-47.......

Vpper Reservoirt

Gage 

height 

(feet)

64.77 

64.34 

64.05

67.32 

68.83 

68.85 

68.83 

68.79 

68.32 

67.53 

67.07 

66.47

.

65.83 

65.45 

65.47

.

65.42 

65.29 

65.16 

64.90 

64.45 

63.97 

63.39 

62.71 

62.05 

61.56

-

Contents 

(acrefeet)

1,725 

1,678 

1,647

2.OO2 

2,167 

2,169 

2,167 

2,162 

2,111 

2,025 

1,975 

1,910

.

1,840 

1,799 

1,801

.

1,796 

1,782 

1,768 

1,739 

1,690 

1,638 

1,575 

1,501 

1,430 

1,376

-

Lower Reservoirt

Gage 

height 

(feet)

136.67 

134.44 

134.43

136.15 

136.18 

135.67 

135.41 

135.19 

134.20 

132.35 

131.33 

130.49

.

129.52 

128.78 

128.12

.

128.09 

127.76 

127.31 

126.98 

126.76 

126.45 

125.92 

124.83 

123.91 

123.26

-

Contents 

(acrefeet)

48,197 

45,767 

45,756

47,619 

47,652 

47,093 

46,810 

46,571 

45,511 

43,585 

42,553 

41,724

.

40,778 

40,068 

39,442

.

39,414 

39,106 

38,687 

38,382 

38,181 

37,899 

37,417 

36,445 

35,639 

35,080

-

Total 

contents 

(acrefeet)

49,922 

47,445 

47,403

49,621 

49,819 

49,262 

48,977 

48,733 

47,622 

45,610 

44,528 

43,634

.

42,618 

41,867 

41,243

.

41,210 

40,888 

40,455 

40,121 

39,871 

39,537 

38,992 

37,946 

37,069 

36,456

-

Change 

in 

contents 

(acrefeet)

-2,477 

-42 

+2,218

+198 

-557 

-285 

-244 

-1,111 

-2,012 

-1,082 

-894 

-1,016

-7,304

-751 

-624 

-33

-8,411

-322 

-433 

-334 

-250 

-334 

-545 

-1,046 

-877 

-613

-6,162

Draft 

(acrefeet)

2,657 

2,483 

2,588

2,579 

2,368 

2,617 

2,554 

2,621 

2,554 

2,652 

2,610 

2,557

30,840

2,594 

2,397 

2,245

30,348

2,598 

2,351 

2,540 

2,531 

2,543 

2,504 

2,679 

2,659 

2,524

30,165

Evaporation 

(acrefeet)

329

240 

239

207 

200 

311 

366 

428 

497 

484 

483 

386

4,170

294 

223 

136

4,015

159 

153 

245 

371 

392 

442 

508 

467 

356

3,746

Spill 

plus 

leakage 

(acrefeet)

0 

0 

O

0 

0 

0 

0 

0 

0 

0 

0 

0

0

o

0

o

0

0 

0

o

0 

0 

0 

0 

0

o

0

Runoff 

(acrefeet)

509 

2,681 

5,045

2,984 

2,011 

2,643 

2,676 

1,938 

1,039 

2,054 

2,199 

1,927

27,706

2,137 

1,996 

2,348

25,952

2,435 

2,071 

2,451 

2,652 

2,601 

2,401 

2,141 

2,249 

2,267

27,749

t On first day of month.
24 SWEETWATER RIVER BASIN

Sweetwater River at Loveland Dam, near Alpine, Calif.

Location (revised).- Staff gage, lat. 32°46'50", long. 116°47'40", in SW^NE^ sec. 17, T.

16 s., K. 8 l£., at Loveland Dam, 4 miles southwest of Alpine. Datum of gage is

1,215.0 feet above mean sea level. 

Drainage area.- 100 square miles. 

Kecords available.- October 1944 to September 1947. 

Hemarlcs.- Kecords of runoff represent water reaching reservoir, including rainfall on

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

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

Reservoir capacity at spillway level, at gage height 140.00 feet, 25,387 acre-feet. No

diversion above station. Water is released down Sweetwater River as required. Staff

gage read daily at 8 a.m.

Cooperation.- Basic records furnished by California Water & Telephone Co. 

HevislonsT^~Records given in following table for water years 1945 and 1946, supersede those

puDiished in Water-Supply Papers 1041 and 1061.

Monthly runoff, October 1944 to September 1947

Month

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

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

Water year 1944-45

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

Calendar year 1945

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

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

Water year 1945-46

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

Calendar year 1946

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

Water year 1946-47

Loveland Reservolrt

Gage height 

(feet)

:

61.50 

70.80 

72.85 

73.70 

73.23 

73.42

-

73.05 

72.86 

73.20

-

82.10 

85.32 

87.07 

70.37 

68.57 

69.53 

69.13 

68.70 

68.11

-

67.76 

67.56 

68.74

-

65.70 

7.35 

17.99 

24.18 

26.60 

26.56 

26.49 

26.11 

25.92 

25.81

-

Contents 

(acre-feet)

0

3,927 

5,414 

5,777 

5,930 

5,845 

5,879

-

5,812 

5,778 

5,840

-

7,546 

8,215 

8,591 

5,340 

5,033 

5,196 

5,128 

5,055 

4,957

-

4,899 

4,866 

5,062

-

4,566 

241 

484 

699 

803 

801 

798 

781 

773 

768

-

Change in" 

contents 

(acrefeet)

'-

+1,487 

+363 

+153 

-85 

+34 

-67

+5,812

-34 

+62 

+1,706

-

+669 

+376 

-3,251 

-307 

+163 

-68 

-73 

-98 

-58

-913

-33 

+196 

-496

-2,980

-4,325 

+243 

+215 

+104 

-2 

-3 

-17 

-8 

-5

-4,131

Draft 

(acrefeet)

:

27 

27 

27

0 

0 

0

-

0 

0 

0

-

0 

0 

3,957

1,053 

0 

0 

O 

0 

0

5,010

0 

0 

779

5,789

4,486

0 

0 

0 

0 

0 

0 

0 

0

5,265

Evaporat Ion 

(acrefeet)

:

46 

75 

71 

112 

110 

79

-

66 

49 

31

-

45 

44 

52 

57 

68 

80 

74 

99 

66

731

52 

32 

25

694

19 

5 

9 

17 

21 

24 

32 

26 

24

286

Spill 

plus 

leakage 

(acrefeet)

:

0 

0

0 

0

o

0

-

0

o

0

-

0

0 

0 

0 

0 

0 

0 

0 

0

0

0 

0

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Runoff 

(acrefeet)

0 

830 

160

175 

500 

4,000 

1,560 

465 

251 

27 

144 

12

8,120

32

111 

1,737

9,010

714 

420 

758 

803 

231 

12 

1 

1 

8

4,828

19 

228 

308

3,503

180 

248 

224 

121 

19 

21 

15 

18 

19

1_,420

t On first day of month.

Note.- Reaervolr gage flrat read Mar. 5, 1945; gage height, 20.OO feet; contents, 546 acre-feet. 

Computed runoff Mar. 5-31, 1945, 3,416 acre-feet. Runoff Oct. 1, 1944, to Mar. 4, 1945, computed 

on basla of records for Sweetwater River at Sweetwater Dam and Cottonwood Creek at Morena Dam.

For months when Inflow to the reservoir was small and other elements were large, negative or 

discordant figures of runoff may appear. To the extent that such discrepancies may be attributed 

to changes In reservoir capacity since the time of the rating used, or to uncertainties In the 

rating, quantities too small for periods of falling stage In the reservoir are compensated by 

quantities too large for periods of corresponding rising stage.
SWEETWATER RIVER BASIN 

Sweetwater River at Sweetwater Dam, Calif.

25

.

from mouth. Datum of gage is 149.41 feet above mean sea level. 

Drainage area.- 181 square miles. 

Records available.- October 1887 to September 1947.

reaching Sweetwater R-erv?ir including

 raTnTall on reservoir surface and water released at Loveland Dam, computed on basis 01 

records of storage, release (draft), spill, leakage, and evaporation Capacity and 

area ratings for reservoir are dated December 1947 Rfervoir capacity at spillway 

level (gage height, 89.70 feet), 27,689 acre-feet (revised). No diversion abo/e station. 

Regulation at Loveland Dam (see preceding page).

ter Telehone Co. Coo 

Rev

Regulation at Loveland Dam (see preceding page).

iperation.- Basic records furnished by California Water & Telephone Co. 

'isions.- Records given in following table for water years 1944, 1945, 

sfirifi those published^ in Water-Supply Papers 1011, 1041, and 1061.

and 1946, superMonthly runoff, October 1943 to September 1947

Month

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

MBV

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

Water year 1943-44 . . .

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

Calendar year 1944...

UB V

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

Water year 1944-45...

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

Calendar year 1945...

Mav

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

Water year 1945-46...

Calendar year 1946 . . .

UBV

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

Water year 1946-47 . . .

Sweetwater Reservolrt

Gage height 

(feet)

81.83 

80.18 

78.70

78.41 

77.96 

85.24 

89.73 

89.73 

89.08 

87.76 

86.08 

84.32

-

82.75 

81.30 

80.68

-

80.01 

79.67 

80.00 

81.33 

8O.45 

78.67 

76.95 

75.06 

73.24

-

71.18 

69.25 

67.71

_

67.40 

66.81 

66.14 

72.10 

73.13 

71.24 

69.25 

67.13 

64.86

-

62.66 

61.10 

60.46

-

59.89 

66.86 

66.08 

64.63 

62.60 

60.26 

57.56 

54.53 

51.19 

47.80

-

Contents 

(acre-feet)

20,898 

19,634 

18.54O

18,334 

18,014 

23,676 

27,718 

27,718 

27 , 1O7 

25,887 

24,397 

22,904

-

21,624 

20,488 

20,010

-

19,506 

19,251 

19,499 

20,511 

19,837 

18,584 

17,312 

16,059 

14,915

-

13,683 

12,586 

11,749

_

11,587 

11,279 

10,939 

14,225 

14,848 

13,718 

12,586 

11,446 

10,304

-

9,262 

8,557 

8,275

-

8,027 

11,306 

10,908 

10,192 

9,234 

8,188 

7,060 

5,916 

4,784 

3,770

-

Change 

In

contents 

(acrefeet)

-1,264

-1,094 

-206

-320 

+5,662 

+4,042 

0 

-611 

-1,220 

-1,490 

-1,493 

-1.28O

+726

-1,136 

-478 

-504

+1,172

-255 

+248 

+1,012 

-674 

-1,253 

-1,272 

-1,253 

-1,144 

-1,232

-7,941

-1,097 

-837 

-162

-7,919

-SOS 

-34O 

+3,286 

+623 

-1,130 

-1,132 

-1.14O 

-1,142 

-1,042

-4,421

-705 

-282 

-248

-3,560

+3,279 

-398 

-716 

-958 

-1,046 

-1,128 

-1,144 

-1,132 

-1,014

-5,492

Draft 

(acrefeet)

972

824

595 I

505 

438 

541 

7S8 

936 

898 

958 

980 

885

9,290

887 

604 

589

8,979

539 

537 

603 

729 

952 

882 

909 

843 

914

8,988

973 

747 

529

9,157

394 

442

551 

605 

915 

882 

934 

942 

910

8,824

683 

386

347

7,991

451 

488 

660 

827 

903 

975 

974 

932 

925

8,551

Evaporation 

(acrefeet)

231 

197

93 I

98 

106 

252 

340 

385 

421 

523 

492 

339

3,477

246 

130 

116

3,448

115 

115 

130 

261 

338 

299 

356 

331 

263

2,700

186 

154 

86

2,634

129 

93 

129 

186 

243 

314 

285 

299 

241

2,345

152 

83 

50

2,204

86 

95 

130 

194 

205 

205 

231 

199 

139

1,769

Spill 

plus 

leakage 

(acrefeet)

1 

1 

1

1 

1 

1,093 

615 

109 

1 

1 

1 

1

1,826

2 

2 

2

1,829

2 

2 

2 

2 

2 

2 

3 

3 

3

27

2 

2 

2

27

2 

2 

2 

2 

3 

3 

3 

3 

3

29

3 

3 

3

32

3 

3 

3 

3 

3 

3 

3 

3 

3

36

Runoff 

(acrefeet)

-60 

-72 

483

284 

6,207 

5,928 

1,713 

819 

100 

-8 

-20 

-55

15,319

-1 

258 

203

15,428

4O1 

902 

1,747 

318 

39 

-89 

15 

33 

-52

3,774

64 

66 

455

3,899

217 

197 

3,968 

1,416 

31 

67 

82 

102 

112

6,777

133 

190 

152

6,667

3,819 

188 

77 

66 

65 

55 

64 

2 

53

4,864

t On first day of month.

Note.- For months when Inflow to the reservoir was small and other elements were large, negative 

or discordant figures of runoff may appear. To the extent that such discrepancies may be attributed 

to changes In reservoir capacity since the time of the rating used, or to uncertainties In the 

rating, quantities too small for periods of falling stage In the reservoir are compensated by 

quantities too large for periods of corresponding rising stage.
26 SAN DIEGO RIVER BASIN

San Diego River at El Capitan Dam, Calif.

Location (revised).- Staff gage, lat. 32°53'00", long. 116°48'30", in NE£ sec. 7, T. IS

 S. , R. y K., at El Capitan Dam, 7 miles east of Lakeside. Datum of gage is 553 feet 

above mean sea level.

Drainage area.- 190 square miles.

Records available (revised).- October 1945 to September 1947. October 1936 to September

 iy4ti, records computed rrom 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

 5T~San Diego River above El Capitan Dam, including rainfall on reservoir surface and 

water passing down Boulder Creek from Cuyamaca Dam, computed on basis of records of 

storage, release (draft), spill, leakage, and evaporation. Capacity and area ratings 

for reservoir are dated April 1935. Reservoir capacity at spillway level (gage height, 

197.00 feet) is 116,448 acre-feet. Practically no diversion above station. Partial 

regulation on Boulder Creek at Cuyamaca Dam (see p. 28).

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

Monthly runoff, October 1945 to September 1947

Month

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

Mav

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

Water year 1945-46...

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

Calendar year 1946...

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

Water year 1946-47...

El Capitan

Gage height 

(feet)

150.14

132.74

-

123.32

.

92.00

-

Heservoirt

Contents 

(acre-feet)

56,642

54 993

40,867

-

33,564

_

33 659

29 297

15,156

-

Change 

In

contents 

(acrefeet)

+2,137

-3,551

-25,082

2 937

+95

-25,120

452

2 597

2 731

-3 234

-22,160

Draft

(acrefeet)

2,139

2 595

3,302

32,695

2 755

1 *79S

627

30,593

2 235

2 311

2 '-302

23,094

Evapo-

(acrefe«rt)

260

312 070

332

559

5,695

167

5^219

4,009

Spill 

plus

leakage 

(acrefeet)

29

25

25

17

275

19

248

153

Runoff

(acrefeet)

4,565

273

327

13,583

_908_

10,940

79

5,096

t On first day of month.

Note.- For months when Inflow to the reservoir was small and other elements were large, negative 

or discordant figures of runoff may appear. To the extent that such discrepancies may be attributed 

to changes in reservoir capacity since the time of the rating used, or to uncertainties in the 

rating, quantities too small for periods of falling stage in the reservoir are compensated by 

quantities too large for periods of corresponding rising stage.
SAN DIEGO RIVER BASIN 27

San Diego River near Santee, Calif.

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

117°03 I 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 1947 (incomplete prior to 1920).

Average discharge.- 32 years (1912-15, 1917-19, 1920-47), 36.4 second-feet.

Extremes.- Maximum daily discharge during year, 0.4 second-foot Nov. 24, Dec. 27; 

practically no flow during several months.

1912-47: 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 1946 to September 1947

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.

 eO.Ol

Nov.

. eO.Ol

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

.3

.2

.3

.3

.3

.2

-

Dec.

0.2

.2

.2

.2

.2

.2

.2 

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.4

.3

.3

.2

.2

Jan.

0.2

.2

.2

.2

.2

.2

.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

Feb.

0.2

.2

.2

.2

.2

.2

.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

0.2

.2

.2

.2

.3

.3

.3 

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.

I

V e.06

'

Apr.

I

> eO.05

1

.

> e.03

'

> e.02

, e.Ol

Seccndfoot-days

0.31

4.03

5.9

526.39

5.1

5.6

4.70

.70

.31

.13

0

0

0

26.78

May

, eO.Ol

Maximum

.4

.4

34

.2

.2

.3

_

_

0

0

0

.4

June

.

> eO.Ol

(

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

0.01

.134

L .19

1.44

L .16

2 .20

.152

.023

.01

.004

0

0

0

.073

Sept.

Runoff in 

acre- feet

0.6

8.0

12

1,040

10

11

9.3

1.4

.6

.3

0

0

0

53

e Daily discharge less than 0.1 sec.-ft.
2H SAN DIEGO RIVES BASIN

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif.

Location (revised).- Staff gage, lat. 32°S9'20", long. 116°35'10", In NEjj sec. 5,-T. 14 S., 

K. 4 E., at Cuyamaca Dam, 7 miles south of Julian. Altitude of spillway crest, 4,633 

feet,

Drainage area.- 12.0 square miles.

Records available.- June 1912 to September 1926 (outflow from Cuyamaca Reservoir), October 

lacib to aeptemoer 1947 (Inflow to Cuyamaca Reservoir).

Remarks.- Records of runoff represent 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 for current year on basis of coordination of measured draft In 

April and corresponding reduction in reservoir gage height. Reservoir capacity at 

spillway level (gage height, 35.42 feet) was 11,600 acre-feet in 1894. Small diversions 

for local use near dam. Water is released down Boulder Creek as required. In the 

computations of runoff during period October 1939 to September 1944, rainfall on water 

surface of reservoir was deducted; for other periods, it was not.

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

Monthly runoff, water year October 1946 to September 1947

Month

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

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

Water year 1946-47 . .

Cuyamaca Reservolrt

Gage height 

(feet)

15.17 

15.00 

16.67

"17.50 

17.71 

17.83 

17.96 

15.46 

14.75 

13.83 

12.75 

12.04 

11.33

-

Contents 

(acre-feet)

217 

195 

465

645 

696 

726 

759 

257 

165 

80 

30 

13 

4

-

Change 

in 

contents 

(acrefeet)

-22

+270 

+180

+51 

+30 

+33 

-502 

-92 

-85 

-50 

-17 

-9

-213

Draft 

(acrefeet)

0 

0 

0

0 

0 

0 

4 IS 

3 

5 

4 

2 

1

433

Evaporation 

(acrefeet)

54 

40 

46

60 

62 

84 

92 

75 65 ' 

46 

18 

8

650

Spill 

plus 

leakage 

(acrefeet)

1

1

1

1 

1 

1 

1 

1 

1 

1 

1 

1

12

Runoff 

(acrefeet)

33

311 

227

112 

93 

118 

9 

-13 

-14 

1 

4 

1

832

t On first day of month.

Note.- For months when Inflow to the reservoir was small and other elements were large, negative or discordant figures of runoff may appear. To the extent that such discrepancies may be 

attributed to changes in reservoir capacity since the time of the rating used, or to uncertalnies 

in the rating, quantities too small for periods of falling stage in the reservoir are compensated 

by quantities too large for periods of corresponding rising stage.
SAN DIEGO RIVER BASIN 29 

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

Location (revised).- Staff gage, lat. 32°54'40", long. 116°55'35", in sec. 31, T. 14 S., 

H. i E., at san~Vicente Dam, 0.5 mile north of Foster. Datum of gage is 460 feet above 

mean sea level.

Drainage area.- 75 square miles.

Records available.- October 1942 to September 1947. January to April 1915 and October 

lyatj to jieptemoer 1941 at same site prior to construction of dam, published as San 

Vicente Creek at Foster. October 1941 to January 1943 at site 1 mile (revised) upstream, published as San Vicente Creek near Foster.

Remarks.- Records of runoff represent water reaching reservoir from basin of San Vicente 

ureeK, 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 1943. Reservoir capacity at spillway level (gage height, 190.00 feet) 

is 90,230 acre-feet. No diversion above station. Water is released as required for 

municipal use.

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

Monthly runoff, water year October 1946 to September 1947

Month

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

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

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

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

Water year 1946-47

San Vicente

Qage height 

(feet)

92.71

92 75

92.65

91 32

89.58

-

Reservolrt

Contents 

(acre-feet)

13,967

13,939

13,920

12,546

-

Change 

In

contents 

(acrefeet)

+74

+19

-19

-162

229

308

-1,486

Draft

(acrefeet)

0

-14

0

-81

Evapo-

(acrefeet)

119

78

136

225

2,526

Spill 

plus

leakage 

(acrefeet)

0

0

0

0

0

Runoff

(acrefeet)

70

179

97

103

63

_

959
30 SAN DIEGUITO RIVER BASIN

Santa Ysabel Creek near Mesa Grande, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 330 07'25", long. 116°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 SeptembeT 1947. December 1912 to September 1928 at 

site 1 mile upstream.

Average discharge.- 26 years (1913-28, 1936-47), 30.7 second-feet.

Extremes.- Maximum discharge during year, 385 second-feet Nov. 23 (gage height, 2.30 

feet); no flow during several months.

1912-24, 1936-47: 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 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.

3.6 

2.0 

.4 

.5 

.3

.3 

.2 

.2

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.7

4.1 

3.0 

2.0 

1.6

Nov.

1.5 

1.4 

1.2 

1.2 

1.1

1.0 

1.1 

3.4 

2.7

2.0

2.1

2.4:

8.4 

38 

12

5.5 

4.0 

3.5 

3.3 

6.1

26 

11 

103 

60 

24

15 

11 

7.9 

6.9 

5.9

Dec.

5.1 

4.5 

3.8 

3.8 

3.6

4.0 

6.4 

4.0 

3.6 

3.6

3.5 

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 

4.0

6.9 

32 

26 

11 

7.9 

6.9

Jan.

6.9 

5.9 

4.2 

3.8 

4.2

4.2 

4.2 

3.8 

3.8 

3.8

4.0 

4.2 

5.1 

5.5 

4.5

3.3 

3.8 

3.8 

3.6 

3.8

3.8 

3.6 

3.8 

3.8 

3.6

3.6 

3.6 

10 

23 

9.2 

7.4

Feb.

5.9 

5.5 

5.1 

4.5 

4.8

4.5 

4.5 

4.8 

5.1 

6.9

5.1 

4.8 

4.8 

4.5 

4.2

4.0 

8.2 

14 

10 

7.9

6.4 

5.5 

4.8 

4.5 

4.2

4.0 

5.9 

6.4

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

lendar year 1946 

ary

h. .....................................

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

St. ....................................

ter year 1946-47 ...............

Peak discharge.- N(

68 aee.-ft.

Mar.

4.8 

4.5 

4.2 

10 

3.2

6.9 

5.1 

4.5 

4.5 

4.5

4.5 

4.0 

3.5 

3.8 

3.8

3.8 

3.8 

3.8 

4.5 

5.9

39 

18 

12 

11 

7.4

6.4 

5.9 

6.4 

6.4 

5.5 

5.1

Apr.

4.5 

4.5 

5.9 

11 

7.4

5.1 

4.2 

3.8 

3.6 

3.6

3.2 

2.9 

2.6 

2.6 

2.7

2.7 

2.7 

2.7 

2.8 

2.8

3.1 

4.5 

4.8 

4.0 

2.2

2.2 

2.5 

2.7 

2.6 

2.1

Secondfoot-days

22. 6 

372.6 

183.5

2,404.3

161.8 

160.8 

222.8 

112.0 

18.2 

2.6 

0 

0 

0

1,256.9

>v. 14 (9 a.m.) 78 sec. -ft. 5 Nov. 23

May

1.3 

.7 

.5 

.3 

.2

.2 

.2 

.2 

.3 

.6

.9 

1.0 

1.1 

.9 

.8

1.0 

.8 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.3

.3 

.5 

1.3 

1.0 

.7 

.8

Maximum

4.1 

103 

32

103

23 

14 

39

11 

1 0 3 

.6 

0 

0 

0

103

June

0.6 

.3 

.2 

.2 

.2

.2 

' .2 

.1 

.1 

.1

.1 

.2 

.1

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

0.1 

1.0 

3.3

0

3.3 

4.0 

3.6 

2.1 

.2 

0 

0 

0 

0

0

July Aug.

Mean

0.73 

12.4 

5.92

6.59

5.22 

5.74 

7.19 

3.73 

.59 

.09 

0 

0 

0

3.44

Sept.

Runoff in 

acre-feet

45 

739 

364

4,770

321 

319 

442 

222 

36 

5.2 

0 

0 

0

2,490

(7:15 p.m.) 385 sec. -ft. ; Mar. 21 (12 m.)
SAN DIEGUITO RIVER BASIN ' 31 

Santa Ysabel Creek near Ramona, Calif.

Location.- Water-stage recorder, lat. 33°06'20", long. 116 0 51'30'!, in NE£ sec. 27, T. 12 

a., K. 1 E., 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 

Dept. ).

Drainage area.- 110 square miles.

Records available.- February 1912 to February 1923, October 1943'to September 1947.

Average discharge.- 14 years (1912-22, 1943-47), 41.1 second-feet.

Extremes.- Maximum discharge during year, 544 second-feet Nov. 2$ (gage height, 3.84 

reet); no flow during several periods.

1912-23, 1943-47: Maximum discharge, 28,400 second-feet Jan. 27, 1916 (gage 

height, 14.0 feet); no flow during several months 1921, 1946, 1947.

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

Small diversions above station.

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.

3.6

.9

.5

.2

.1

.1

0

0

0

0

0

0

o

0

0

o

0

0

0

0

0

.1

.2

.3

.3

.3

.6

1.6

2.3

a2.1

al.9

Nov.

al.7

al.5

al.3

al.l

al.O

.9

1.3

3.8

3.8

1.6

1.6

1.8

4.4

50

25

14

10

7.4

5.7

6.3

23

12

134

139

30

]6

al 3

an

a.8.8

a.7.2

-

Dec.

a6.8

6.1

5.8

5.5

5.5

5.5

7.2

7.2

6.8

6.1

5.8

5.5

5.5

6.4

7.6

6.8

5.8

4.9

4.9

4.9

4.6

4.6

4.6

4.6

5.2

7.6

37

59

19

13

12

Jan.

10

9.

7 .

6.

6.

6.

6.

6.

6.

6.

6.

6.

7.

7 .

7.

6.8

6.8

6.8

6.8

6.8

6.4

6.1

6.1

6.4

6.1

5.8

5.8

6.7

31

12

10

Feb.

8.4

7.6

7.2

6.4

6.1

5.8

6.1

6.1

6.4

7.2

6.8

6.8

6.8

6.8

6.8

6.8

9.2

14

12

10

10

9.2

8.8

8.4

8.0

8.4

9.2

9.6

-

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

April ................. ; ....................

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

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

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

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

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

Water year 1946-47 ......................

Mar.

9.2

9.2

8,8

13

14

12

10

9.2

8.B

8.4

8.0

7.2

6.4

6.1

5.8

5.8

5.8

5.8

6.1

6.8

45

27

17

14

12

11

9.6

9.2

8. a

8.4

8.4

Apr.

8.4

8.0

8.8

15

12

10

10

9.2

9.2

8.8

7.6

6.4

5.5

5.2

5.2

5.2

4.9

4.9

4.9

4.9

4.9

6.4

6.8

5.8

4.9

4.3

4.0

4.0

4.0

4.0

Secondfoot-days

15.1

518.2

£91.8

3,380.4

242.6

224 9

336 . 8

203.2

34 1

3. 9

0

0

0

1,870.6

May

3.0

2.2

1.9

1.6

al.3

al.O

a. 7

a. 6

a. 6

a. 8

al.O

al.2

al.5

al.7

a2.0

al.7

al.4

al.O

a. 6

a. 5

.5

.4

.4

.4

.3

.3

.3

.9

1.9

1.4

1.0

Maximum

3.6

134

59

134

31

14

45

15

3.0

1.0

0

O

0

134

Juhe

1.0

.7

.5

.2

a, 2

a. 2

a.l

a.i

a 1

.1

.2

.1

.1

0

0

(!)

O

0

0

0

.2

.1

0

(!>

0

p

0

0

0

0

Minimum

o

.9

4.6

0

5' 5 88

s' a

4.0

.3

0

0

0

0

0

July Aug.

Mean

0.49

17.3

9.41

9.26

7 83

8 . 03

10 . 9

6.77

1.10

.13

0

O

O

5.12

Sept.

Runoff in 

acre-feet

30

1,030

579

6,710

'481

446

668

403

68

7.7

0

0

O

3,710

a No gage-height record; discharge computed on basis of records for stations near Mesa Grande 

near San Pasqual.
32 SAN DIEGUITO RIVER BASIN

Santa Ysabel Creek near San Pasqual, Calif.

Location.- Water-stage recorder and concrete control, lat. 33°0b'0p", long. 116°6b'00", 

in Sf£ sec. 31, T. 12 S., R. 1 E., 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.

Records available.- April to December 1947 (irrigation season only). December 1906 to 

September lyia at site 0.25 mile downstream, published as Santa Ysabel Creek near 

Escondido.

Remarks.- Records good. Small diversion above station.

Discharge, in second-feet, April to December 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

Jan. Feb. Mar.

t!2

Apr.

_

-

-

-

-

_

-

-

-

-

-

-

-

-

-

t4.4

4.5

4.1

4.4

4.5

4.9

6.0

6.8

6.4 

5.6

4.5

4.5

4.5

4.4 

3.8

May

2.6

1.6

1.1

1.0

.7

.6

.5

.5

.5

.6

1.0

1.4

1.6

1.9

2.1

1.8

1.6

1.1

.8

.6

.6

.5

.5

.4 

.4

.4

.8

.8

2.1 

1.6

1.1

Month

April 17-30 ................................

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

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

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

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

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

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

December 1-7 ...............................

The period .......... .....................

June

1.0

.7

.4

.2

a.l

V

> e.04

/

\

> e.Ol

/

0

o

0

0

o

0

0

0

0

o

0

o

0

0

0

0

o

0

July

Seoondfoot-days

68.9

32.8

2 59

0

0

0

.31

54

25.0

-

Aug.

Maximum

6.8

2.6

1.0

0

0

O

9.9

-

Sept.

Minimum

3.8

.4

O

0

0

0

0

.1

-

Oct.

0

o

0

0

o

e.Ol

.02

. e.Ol

Nov.

>e0.01

 e.O2

,e.03

-

Mean

4.92

1.06

.086

O

0

0

.010

.018

3.57

-

Dec.

0.1

.2

.1

1.5

9.9

7.6

5.6

t4.8

_

_

_

_

_

_

-

_

_

_

-

_

_

_

_

_

_

-

-

Runoff in 

acre feet

137

65

5.1

0

O

0

.6

1.1

50

259

t Result of discharge measurement.

a Ho gage-height record; discharge Interpolated.

e Daily discharge less than 0.1 sec.-ft.
SAN DIEGUITO RIVER BASIN 

Sa.n Dieguito River near San Pasqual, Calif.

33

Location.- Water-stage recorder, lat. 33°04'00", long. 117"02'0b"i in San Bernardo Grant, 

1.5 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 326 feet (from 

topographic map).

Drainage area.- 250 square miles.

Records available.- April to December 1947 (irrigation season only).

Remarks.- Records good. Diversions for irrigation and pumping from wells along river in 

San Pasqual Valley. There is an undetermined amount of underflow at tnis station.

Day

1

2

3

4

5

6

7

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. Pub . Mar.

tl.l

Apr.

.

-

-

-

-

.

-

-

-

-

.

-

-

-

fO.5

.4

.4

.2

.2

.2

.1

.2

.2

.2

.2

.2

.2

.2

.1

.2

-

May

0.2

.1

0

.1

0

0

0

o

0

 e.02

.1

.1

.1

.1

.1

.1

.02

0

0

0

0

0

0

0

0

Month

April 15-30 ................................

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

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

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

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

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

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

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

December 1-8 ...............................

The period ...............................

June July

Seoondfoot-days

3.7

1.16

0

0

0

0

0

0

0

-

Aug.

Maximum

0.5

.2

0

0

0

0

0

0

0

-

.">ept.

Minimum

b.i

p

b

0

0

0

0

0

0

-

Oct. Nov. Dec.

O

0

0

0

0

0

0

0

-

-

_

_

-

_

-

.

_

-

_

-

_

-

-

-

-

_

-

-

-

_

-

 _ Runoff in Mean acre-feet

0.23 7.3

.037 2.3

0 0

0 0

0 0

0 0

0 0

0 0

0 0

9.6

t Result of discharge measurement.

e Daily discharge less than 0.1 sec.-ft.

f Computed on basis of partly estimated gage-height record.
H

SAN DIEGUITO RIVER BASIN 

Sari DieguLto River at Lake Hodges, Calif.

(revised).- Staff gage, lat. 33°02'40", long. 117°07'40", in NW£ sec. 18, T. 13 

y W . , at Lake Hodges Dam, 5.5 miles southwest of Escoridido. Altitude of spillway 

crest, 315 feet.

Drainage area.- 303 square miles.

Records available (revised).- October 1931 to September 1947. January 1916 to December 

I9ia, records rrom 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 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 same as have 

been used since dam was built in 1919. Reservoir capacity at spillway level (gage 

height, 115.00 feet), 37,530 acre-feet. Diversions for irrigation above Lake Hodges.

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

Revisions.- Records given in following table for water year 1946, supersede those published 

in Water-Supply Paper 1061.

Monthly runoff, October 1945 to September 1947

Month

October 1945

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

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

Water- year 1945-46.

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

Calendar year 1946.

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

Water year 1946-47.

Lake Hodgest

Gage height 

(feet)

108.81 

107.43 

106.32

114.06 

114.98 

115.00 

115.30 

114.72 

113.44 

111.86 

110.14 

108.39

-

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

-

Contents 

(acre-feet)

29,936 

28,392 

27,190

36,309 

37,507 

37,534 

37,930 

37,166 

35,514 

33,541 

31,475 

29,460

-

27,803 

26,346 

25,993

-

25,602 

25,337 

25,073 

2b,003 

23,845 

22,129 

20,322 

18,351 

16,522 

14,920

-

Change 

in 

contents 

(acrefeet)

-1,544 

-1,202 

+9,119

+1,198 

+27 

+396 

-764 

-1,652 

-1,973 

-2,066 

-2,015 

-1,657

-2,133

-1,457 

-353 

-391

-10,707

-265 

-264 

-70 

-1,158 

-1,716 

-1,807 

-1,971 

-1,829 

-1,602

-12,883

Draft 

(acrefeet)

1,057 

864 

510

348 

349 

731 

689 

1,097 

1,192 

1,268 

1,252 

1,181

10,538

1,081 

547 

483

10,218

246 

427 

856 

892 

1,161 

1,184 

1,271 

1,201 

1,129

10,478

Evaporation 

(acrefeet)

373 

289 

290

248 

250 

346 

338 

468 

697 

672 

637 

532

5,140

387

216 

213

5,004

163 

156 

253 

350 

404 

443 

530 

460 

316

3,891

Spill 

plus 

leakage 

(acrefeet)

-1 

2 

2

34 

607 

271 

1,379 

2 

2 

2 

1 

1

2,304

1

1 

2

2,303

2 

2 

2 

2 

2 

1 

1 

2 

2

20

Runoff 

(acrefeet)

-113 

-47 

9,921

1,828 

1,233 

1,744 

1,642 

-85 

-82 

-124 

-125 

+57

15,849

12 

411 

307

6,818

146 

321 

1,041 

86 

-149 

-179 

-169 

-166 

-155

1,506

t On first day of month.

Note.- For months when Inflow to the reservoir was small and other elements were large, negative 

or discordant figures of runoff may appear. To the extent that such discrepancies may be attributed to changes in reservoir capacity since the time of the rating" used, or to uncertainties 

in the rating, quantities too small for periods of falling stage in the reservoir are compensated 

by quantities too large for periods of corresponding rising stage.
SAN DIEGUITO RIVER BASIN

Guejito1 Creek near San Pasqual, Calif.

Location.- Water-stage recorder and concrete control, lat. 33°06'55", long. 116°57'10" 

in NEt sec. 23 (unsurveyed), T. 12 S., R. 1 W., 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 1947.

Extremes.- Maximum discharge during period, 10 second-feet Dec. 28, Mar. 21; no flow 

during several periods.

Remarks.- Records good. Diversion for irrigation about a quarter of a mile above 

station.

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. Nov. Dec.

_

_

-

-

-

_

-

_

_

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.5

2.1

7.1

7.1

2.7

1.9

1.5

Jan.

1.6

1.4

1.3

1.3

1.4

1.4

1.4

1.3

1.2

1.2

1.3

1.4

1.5

1.4

1.3

1.2

1.2

1.2

1.2

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

2.4

3.4

1.7

1.5

Feb.

1.3

1.2

1.4

1.1

1.0

1.0

1.3

1.2

1.3

1.5

1.3

1.3 1.°

1.2

1.1

1.2

1.7

1.8

2.2

1.4

1.2

1.1

.9

.9

.8

.8

1.2

1.1

_

-

Month

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

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

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

Calendar year ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

1.2

1.2

1.0

2.0

2.2

1.8

1.3

1.2

T . 2

1.2

1.1

.8

.6

.8

.8

1.0

1.0

1.0

1.2

1.3

8.3

3.9

2.4

1.6

1.3

1.2

1.2

1.2

1.3

1.2

1.2

Apr.

1.1

1.1

1.2

2.5

1.5

1.2

l!5

1.0

1.0

.9

.7

.5

.4

.4

.5

.4

.4

.4

.5

.6

.7

1.3

.8

.8

.7

.8

.7

.7

.6

.5

Secondfoot-days

_

42.1

-

43.9

34.7

48.7

24.9

8.7

6.2

.69

.29

.61

210.79

May

0.3

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.4

.4

.4

.4

.3

.3

.2

.2

.4

.3

.2

.1

.2

.6

.4

.3

.3

.2

Maximum

.

_

-

-

3.4

2.2

8.3

2.5

.6

.4

.1

.2

-

June

0.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

 4

.4

.2

.2

.2

 .1

.1

.1

.2

.3

.4

.2

.2

.2

.3

.2

.1

.1

.1

.1

Minimum

_

_

-

-

1.2

.8

.6

.4

.1

.1

0

0

0

-

July

0.1

.1

' e.04

> e.02

» e.Ol

o

0

0

0

Aug.

0

0

0

0

o

0

0

0

0

0

o

o

 e.02

, e.Ol

. e.02

o

Mean

_

_

-

-

1.42

1.24

1.57

.83

.28

.21

.022

.009

.020

-

Sept.

0

0

0

0

0

0

0

. e.Ol

0

0

&

e.04

' .2

e.03

0

0

0

Runoff in 

acre-feet

_

_

84

-

87

69

97

49

17

12

1.4

.6

1.2

418

e Dally discharge less than 0.1 sec.-ft.
36 SAN DIEGUITO RIVER BASIN

Guejito Creek at San Pasqual, Calif. 

(Formerly published as Guejito Creek near Escondido, Calif.)

Location.- Water-stage recorder, lat. 33°05'35", long. 116°57'45", in NW£ sec. 35, T. 12 

 S., R. 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 

I94b to September 1947.

Extremes - Maximum discharge during year not determined, occurred Nov. 23 (gage height, 

3.30 feet); no flow during several months.

1915, 1916-17, 1946-47: Maximum daily discharge, 118 second-feet Feb. 10, 1915, 

estimated;'no flow during several months of each year.

Remarks.- Records fair. Diversion for irrigation about 2 miles above station.

Cooperation.- One discharge measurement furnished by California State Division of Water 

Kesources.

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. Nov.

0

0

0

o

o

0

0

o

0

0

0

0

.7

1.4

.2

a.l

 e.05

8.5

2.1

.2

.2

.2

.2

.2

.2

-

Dec.

0.2

.2

.2

.2

.2

.2

2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

f .3

a. 3

a. 2

f .2

.2

.2

.2

1.8

2.0

a. 8

a. 7

a. 6

Jan.

aO

a

f

li

al.O

a. 9

Feb.

aO,8

a. 7

a. 6

a. 5

a. 5

a. 4

.4

.4

.4

.4

.5

.5

.5

.4

.4

.5

.6

.7

1.1

.7

.5

.5

.5

.5

.5

.6

.7

.7

_

-

Month

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

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

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

Calendar year ......................

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

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

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

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

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

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

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

Augu 

Sept

st... ..................................

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

Water year 1946-47 ......................

Mar.

0.7

.8

.9

1.5

1.4

1.0

.8

.9

.8

.7

.7

.7

.6

.6

.5

.4

.4

.4

.4

.6

5.2

al.O

al.O

a. 9

a. 9

a. 9

.9

.8

.7

.6

.5

Apr.

0.4

.4

.4

.9

.4

.2

.2

.3

.3

.3

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.5

.5

.5

.4

.4

Secondfoot-days

o

14.50

12.1

_

18 . 5

15.5

28.2

10.6

10.6

4.6

o'. 95

0

115.55

May

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

.3

.2

.2

Maximum

0

8 . 5

2.0

_

1.6

1.1

5.2

.9

.4

.2

.1

0 

0

8.5

June

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Minimum

0

0

.2

_

.4

.4

.4

.2

.2

.1

0

0 

0

0

July

0.1

.1

. e.Cto

O

O

O

0

0

0

0

0

0

0

0

0

0

o

Aug.

Mean

0

483

.39

_

.60

.55

.91

.35

. '.1534

.031

0 

0

.317

Sept.

Runoff in 

acre feet

0

29

24

_

37

31

56

21

21

9.1

1.9

0 

O

230

No gage-height record; discharge computed on basis of probable discharge recession curves and 

interpolation.

e Daily discharge less than 0.1 see.-ft.

f Computed on basis of partly estimated gage-height record.
SAN DIEGUITO RIVER BASIN 37

Santa Maria Creek near Ramona, Calif.

Location.- Water-stage recorder and concrete control, lat. 33°03'15", long. 116°56'55", 

in SE£- 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 1947.

Extremes.- Maximum discharge during year, 1.2 second-feet Mar. 21 height, 1.26

feet); no flow during several months.

1912-20, 1946-47: 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 several months of each year.

Remarks.- Records good. City of Ramona pumps water from stream above station. 

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. Nov.

0 

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

, e.02

-

Dec.

, eO.02

1

V e.05

|

1

.1

^ e.06

Jan.

> eO.05

, e.04

. e.05

Feb.

> eO.05

> .e.04

, e.03

_

-

Month

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

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

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

Calendar year ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar. 1 Apr.

I eO.03 1 

J > eO.05

. e.06

, e.04

.1

.6

.2

.1

. 3.05

J

 e.03

> e.03

> e.02

i

-

Secondfoot-days

0

.16

1.04

_

1.45

l!l4

2.27

.95

!l7

0

0

0

0

7.18

May

, eO.Ol

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

.1

_

.6

0

0

0

0

.6

June

Minimum

Cc

Cc

c

c

c

c

July Aug.

Mean

0

.005

.034

_

.047

.041

.073

.032

.005

0

0

0

0

.020

Sept.

Runoff in 

acre- feet

0

.3

2.1

-

2.9

2.3

4.5

1.9

.3

0

0

0

0

14

e Daily discharge less than 0.1 sec.-ft.

854211 0-49-4
38 SAN LUIS KEY RIVER BASIN

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

Location.- Staff gage, lat. 33°14'15", long. 1160 45'50", in NW£ sec. 10, T. 11 S., R. 2 E., 

at Henshaw Dam, 5 miles north of Mesa Grande. Altitude of spillway crest, 2,727 feet.

Drainage area.- 209 square miles at Henshaw Dam.

Records available.- January 1923 to September 1947. October 1911 to January 1923 at 

station 1 mile below dam site.

Average discharge.- 11 years (1911-22), 60.4 second-feet, below dam site; 25 years 

(iyaa-4 1 /), 37.B second-feet, inflow to 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. Reservoir capacity at spillway crest (gage 

height, 107.00 feet) was 203,581 acre-feet at that time. Since storage of water was 

begun, runoff as computed has been exclusive of 90 percent of computed rainfall on 

reservoir surface. Statements in some of the earlier water-supply papers to the effect 

that ths rainfall on the reservoir surface was included in the computed runoff, are 

incorrect. During current year rainfall on reservoir surface amounted to 5,180 acrefeet. No diversion above Henshaw Dam. 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 1946 to September 1947

Month

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

Calendar year 1946

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

Water year 1946-47

Lake Henshawt

Gage height 

Tfeet)

88.83 

88.50 

89.18 

89.45

-

89.54 

89.42 

88.95 

87.99 

86.86 

85.39 

83.98 

82.39 

SO. 87

-

Contents 

(acre-feet)

113,067 

111,766 

114,460 

115,543

-

115,907 

115,422 

113,544 

109,779 

105,480 

100,100 

95,166 

89,866 

85,O61

-

Change 

in 

contents 

(acrefeet)

-1,301 

+2,694 

+1,083

-22,878

+364 

-485 

-1,878 

-3,765 

-4,299 

-5,380 

-4,934 

-5,300 

-4,805

-28,006

Draft 

(acrefeet)

1 

0 

0

19,980

373 

1,152 

2,444 

3,012 

2,E95 

3,297 

2,439 

3,353 

3,317

22,083

Net 

evapo- 

"ration 

(acrefeet)

+1,341 

-1,295 

-184

+18,248

+208 

+417 

+689 

+1,573 

+2,169 

+2,525 

+3,337 

+2,442 

+1,945

+lb,167

Spill 

plus 

leakage 

(acrefeet)

0 

0 

0

0

0 

0

o

0 

0 

0

o

0 

0

0

Runoff 

(acrefeet)

41 

1,399 

899

15,350

945 

1,084 

1,255 

820 

565 

442 

842 

495 

457

9,244

t At end of month.

Note.- Net evaporation, as used in computing this record, is total evaporation less 

of rainfall. »
SAN LUIS KEY RIVER BASIN

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

Location - Water-stage recorder, lat. 33°21'30", long. 117°02'bO", in SWj sec. 2b. T. 

y S., R. 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 1947 (irrigation seasons only).

Remarks.- Records good. Flow regulated by Lake Henshaw. Diversions above station, mainly 

By Escondido Mutual Water Co. 0. S. Indian Irrigation Service diverted about 660 

acre-feet during period May 1 to Nov. 30 at Pala diversion dam. In accompanying table 

are shown discharge measurements of San Luis Rey River above Pala diversion dam made 

during 1947.

Discharge measurements of San Luis Rey River above Pala diversion dam, near 

Pala, Calif.

Date

Mar. 24 

Apr. 7 

21 

May 5

Discharge 

(sec. -ft 7)

9.6 

5.1 

3.2 

2.6

Date

May 19 

June 5

11 

July 7

Discharge 

(sec. -ft.-)

2.4 

*2.1 

*2.9 

*2.3

Date

July 16 

Aug. 5 

18 

Sept . 8

Discharge 

(sec. -ft.)

2.6 

1.9 

2.4 

1.9

Date

Sept. 18 

Oct. 6 

16 

30 

Dec. 5

Discharge 

(sec. -ft.)

1.9 

2.2 

2.8 

2.2 

7.4

Mean of 2 discharge measurements.

Discharge, in second-feet, ch 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

Jan. Feb. Mar.

-

-

-

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

6.0

5.2

4.3

4.0

4.6

4.3

4.0

3.4

Apr.

3.8

3.8

4.0

4.6

4.0

3.5

3.0

3.0

2.5

2.1

1.4

1.2

1.3

1.5

1.5

1.1

1.0

1.0

.9

.9

1.0

1.4

1.4

1.5

1.5

1.5

1.5

1.4

1.2

1.0

~

Maj

0.8

.6

.5

.4

.4

.4

.4

.4

.4

.8

.6

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.3

.4

.3

.2

.2

.2

Month

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

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

March 24-31 ................................

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

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

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

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

August

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

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

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

December 1 4 ............................

The aeriod ...............................

June

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.7

.5

.5

.5

.2

.2

.2

.2

.2

.2

.2

.2

.2

~

July

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Sect.

0.1

.1

.1

.1

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

~

foot-days SeCOnd- Il.v1i.iii. *""»»» Uin-inrnm Minimum

_

-

35.8

59.5 4.6 .9

11.8 .8 .2

7.4 .7 .2

4.4 .2 .1

3.1 .1 .1

2i9 .1 0

4.5 .2 .1

15.1 .9 .2

5.0

-

Oct.

0.1

.1.1.1.1

.1.1

.1.1.1

.1.1.1

.1

.2

.2

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Nov.

0.2

.2

.2

.2

.2

.2

.2

.2

.4

.3

.4

.4

.4

.4

.4

.5

.6

.6

.7

.7

.8

.9

.7

.8

.7

.7

.7

.7

.8

.9

-

Dec.

1.4

1.2

1.0

1.4

-

_

-

-

-

-

_

- .

-

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

-

H Runoff in 

acre-feet

_

71

1.98 118

.38 23

.25 15

.14 8.7

.10 6.1

.10 5.8

.15 8.9

.50 30

9.9

296
40 SAN LUIS REY RIVER BASIN

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

Location.- Water-stage recorder, lat. 33°20'15" long. 117°08'10", in NW£ sec. 6, T. 10 

S., H. 2 W., 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 SeptemDer 1947.

Extremes.- Maximum discharge during year 30 second-feet Dec. 27 (gage height, 2.39 feet)- 

minimurr, daily, 0.1 second-foot Aug. 23, 25, Sept. 15-22.

1935-41, 1946-47: Maximum stage, 8.7 feet Feb. 7, 1937, datum then in use (discharge not determined); minimum daily discharge, that of Aug. 23, 25, Sept. 15-22,

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

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.

> 2 * 5

3.0

3.0

3.0

3.0

2.9

2.9

2.9

2.9

2.9

Nov.

3.0

3.0

3.1

3.1

3.2

3.3

3.4

3.4

3.6

3.8

4.1

4.8

6.6

13

16

11

8.6

6.6

5.7

5.9

7.9

8.6

16

35

24

21

18

15

13

11

-

Dec.

10

9.7

9.3

8.9

8.6

8.3

8.3

8.3

8.7

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.0

8.0

8.0

8.3

12

33

61

44

37

30

Jan.

26

23

19

19

18

17

16

16

16

15

15

14

14

14

13

13

13

13

13

13

13

13

14

14

14

13

13

13

17

17

16

Feb.

15

15

15

14

15

13

13

12

12

15

17

16

15

15

15

15

16

18

20

20

19

17

15

15

14

13

13

13

_

-

Month

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

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

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

Calendar year ......................

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

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

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

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

Hay

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

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

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

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

Water year 1946-47 ......................

Mar.

13

13

13

13

14

15

15

14

14

13

13

11

11

9.6

9.2

9.2

9.2

9.2

9.2

10

16

20

17

15

13

12

11

11

11

10

9.6

Apr.

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.2

8.3

7.9

6.7

5.9

5.9

5.5

5.5

5.5

5.5

5.5

5.5

5.9

6.3

6.3

6.3

5.9

5.9

5.9

5.5

5.2

4.9

-

Secondfoot-days

77.1

284.7

429.0

477

425

383.2

211.8

115.0

56.9

35.4

11.4

7.3

2,513.8

May

4.5

3.9

3.9

3.9

4.0

3.9

3.9

3.6

3.9

3.9

3.9

3.6

3.6

3.6

3.6

3.6

3.3

3.6

3.6

3.0

2.8

3.3

3.3

3.6

3.9

4.2

4.9

4.2

3o9

3.3

2.8

Maximum

3.0

35

61

26

20

20

9.6

4.9

3.0

2.0

1.0

.4

61

June

3.0

3.0

2.8

2.5

2.5

2.8

2.5

2.3

1.8

1.6

1.4

1.2

.9

1.8

2.0

2.0

1.8

1.8

.9

.8

1.6

2.0

1.4

1.0

1.1

1.4

1.4

2.0

2.8

2.8

-

Minimum

3.0

8.0

13

12

9.2

4.9

2«Q

.8

.6

.1

.1

.1

July

2.0

1.6

1.0

.6

.9

1.2

1.2

.9

.8

.8

.8

.9

1.0

1.2

1.2

1.2

1.2

1.0

.9

1.0

1.2

1.2

1.2

1.2

1.4

1.6

1.6

1.2

1.2

1.2

1.0

Aug.

1.0

1.0

.9

.8

.5

.6

.5

.4

.4

.5

.5

.3

.2

.3

.3

.3

.2

.2

.3

.4

.2

.2

.1

.2

.1

.2

.3

.2

.2

.2

.3

Mean

2*49 g!49

13.8

15.4

15.2

12.4

7.06

3.71

1.90

1.14

*7 O I

.24

6.89

Sept.

0.4

.4

.4

.4

.4

.4

.4

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.3

.3

.3

.3

.3

.3

.2

-

Runoff in 

acre-feet

153

565

851

946

843

760

420

228

113

70

23

14

4,990

Note.- No gage-height record Oct. 1-22, Oct. 24 to Nov. 8, Dec. 4-6; discharge computed on basis 

of 5 discharge measurements, recorded range in stage, and interpolation.
SAN LUIS REY RIVER BASIN 41

San Luis Rey River near Bonsall, Calif.

Location.- Water-stage recorder, lat. 33°15'05", long. 117°14'55", in NE£ sea. 1, T. 11 

S., K. 4 W., 0.8 mile downstream from bridge on Fall Brook-Escondido road and 3 miles 

southwest of Bonsall. Datum of gage is 108.10 feet above mean sea level, datum of 

192-9. Prior to Oct. 31, 1946, at datum 1.44 feet higher.

Drainage area.- 514 square miles.

Records available.- October 1929 to September 1947. July 1916 to September 1918 (gage 

neignts ana discharge measurements only) at site 0.8 mile upstream. April 1912 to 

January 1916 at site at Bonsall (records not equivalent).

Average discharge^- 18 years (1929-47), 38.0 second-feet.

Extremes.- Maximum discharge during year, 54 second-feet Mar. 21 (gage height, 4.15 feet); 

no now during several months.

1929-47: 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 

during part of each year.

Remarks- Records good except those for Nov. 14, 23, 24, which are fair. Regulation at 

LakeTtenshaw; several diversions above station.

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. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

.9

0

0

0

0

0

0

0

0

.6

.1

0

0

0

0

0

0

-

Dec.

0.1

.4

.3

.3

.4

.6

.6

.7

.7

.8

.9

.9

1.3

1.7

2.0

2.2

2.3

2.2

2.2

1.7

1.4

1.9

2.2

2.2

1.9

11

11

20

23

16

13

Jan.

11

9.5

8.6

9.3

9.8

10

10

11

11

11

12

12

12

12

12

11

12

12

12

11

11

10

10

10ir

11

11

12

17

16-

16

Feb.

15

14

14

14

14

13

14

13

13

22

19

18

16

14

13

14

16

16

17

19

18

14

13

12

12

11

10

9.8

_

_

r

Month

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

Calendar year 1946 ......................

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

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

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

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

Water year 1946-47 ......................

Mar.

9.5

9.3

9.3

10

11

11

11

12

12

10

10

9.8

8.0

8.0

6.7

5.3

5.1

4.2

3.8

6.1

35

26

19

14

13

12

10

9.5

9.8

9.2

8.2

Apr.

7.7

7.4

7.2

7.0

6.2

6.0

5.7

5.1

4.8

3.6

2.8

2.1

1.6

1.4

1.4

1.3

1.9

2.4

2.4

2.3

2.1

1.9

2.2

2.1

2.2

2.0

1.7

1.4

1.2

1.0

-

Seccndfoot-days

1.6

125.9

2,985.0

354 2

407.8

0

1,332.5

May

0.6

.4

.3

.3

.3

.3

.3

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Maximum

23

86

0

35

June

0.1.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Minimum

.1

0

0

0

July Aug.

Mean

4.06

8.18

0

3.65

Sept.

Runoff in 

acre-feet

250

5,920

703

0

2,640
42 SAN LUIS REY RIVER BASIN

San Luis Key River at Oceanside, Calif.

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

 y., "R. 5 W., 0.5 mile upstream from State highway bridge, 0.7 mile above-mouth, and

1 mile north of Oceanside. Altitude of gage, about 20 feet. 

Drainage area.- 557 square miles. 

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

1942, October 1946 to September 1947.

Average discharge.- 15 years (1912-14, 1929-41, 1946-47), 35.2 second-feet. 

Extremes.- Mo now during year.

1912-14, 1916, 1929-42, 1946-47: Maximum discharge, 95,600 second-feet Jan. 12,

1916; no flow for several months of each year. 

Remarks.- No flow during year. Storage at Lake Henshaw; several diversions above station.

SANTA MARGARITA RIVER BASIN 

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

Location.- Water-stage recorder, lat. 33°29'40", long. 116°59'00", in Pauba Grant, at 

upper end of Nigger Canyon, 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 avaliaDle.- January 1923 to September 1947.

Average discharge.- 24 years, 15.0 second-feet.

extremes.- Maximum discharge during year, 100 second-feet Nov. 23 (gage height, 2.04 

feet); minimum daily, 1.1 second-feet Sept. 2-5, 28, 29.

1923-47: Maximum discharge, 17,100 second-feet Feb. 16, 1927 (gage height, 19.5 

feet), by slope-area method; minimum, 0.6 second-foot Aug. 17, 1934.

Remarks.- Records fair. No diversion above station.

cooperation.- Gage-height record and 153 discharge measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

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

Dot.

5.5 

5.1 

4.0 

3.0 

2.5

3.3 

2.8 

3.0 

2.5 

2.5

2.5 

3.3 

3.0 

2.3 

2.5

2.5 

3.3 

2.5 

1.9

3.0

2.5 

2.8 

3.0 

2.1 

J..3

1.2 

1.5 

2.1 

1.7 

2.5 

 2.3

Nov.

3.0 

3.0 

2.8 

2.5 

2.3

1.9 

2.3 

2.5 

2.3

3.0

4.3 

4.0 

19 

46 

f!8

flo

7.0 

5.5 

5.2 

5.0

5.0 

5.2 

20 

36 

15

9.0 

6.7 

5.0 

3.9 

3.9

Dec.

4.7 

4.4 

3.9 

3.9 

4.4

5.5 

5.0 

4.4 

4.4 

4.7

4.7 

4.2 

4.4 

4.2 

4.2

4.4 

4.2 

3.5 

3.3 

3.3

3.1 

3.3 

3.1 

3.7

5.0

6.1 

24 

40 

15 

11 

10

Jan.

9.4 

9.0 

7.8

7.0

7.0 

7.8 

7.0 

7.0 

7.0

6.7 

6.1 

5.5 

5.5 

6.1

6.1 

5.5 

5.8 

6.1 

6.1

5.2 

4.4 

4.7 

4.7 

4.4

4.7 

4.7 

6.7 

20 

11 

8.2

Feb.

7.8 

6.4 

5.5

7.0

6.7 

6.7 

6.1 

5.8 

6.7

7.4 

6.4 

f5.5 

f5.5 

f5.8

f6.4 

f6.7 

8.6 

9.0 

7.4

6.4 

6.4 

6.4 

6.1

5.0

3.9 

4.2 

4.4

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

nber.. .................................

lendar year 1946 

ary

h. .............................. ......

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

St.. ...................................

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

ter year 1946-47 ......................

Mar.

5.2 

5.5 

5.2

7.0

6.4 

5.8 

5.8 

6.1 

6.1

5.8 

4.9 

4.4 

4.2 

3.9

4.H 

4.2 

4.4 

4.7 

6.2

11 

.8.8 

7.7 

6.4 

5.5

5.2 

5.5 

5.8 

5.5 

4.9 

4.2

Apr.

4.4 

4.7 

4.4

4.4

3.9 

3.9 

4.2 

4.2 

3.9

3.5 

3.2 

3.0 

3.2 

3.2

3.0 

3.0 

3.0 

2.8 

3.2

3.5 

3.5 

3.5 

3.2 

3.2

3.0 

3.0 

3.0 

3.0 

2.8

Secondfoot-days

84.0 

259.3 

210.0

2,320.9

214.6 

176.6 

176.6 

105.2 

89.7 

68.9 

55.1 

65.4 

39.6

1,545.0

May

2.8 

2.6 

2.8

2.6

2.6 

2.6 

2.5 

2.5 

4.3

6.1 

3.9 

3.7 

3.2 

3.2

3.0 

2.8 

2.6 

2.6 

H.5

2.5 

2.6 

2.8 

2.6 

2.5

2.6 

2.6

2.r6

2.3 

2.5 

2.6

Maximum

5.5 

46 

40

175

20 

9.0 

11 

4.7 

6.1 

2.6 

2.1 

6.5 

1.6

46

June

2.5 

2.6 

2.6

2.5

2.5 

2.5 

2.3 

2.3 

2.5

2.5 

2.1 

2.0 

2.1 

2.3

2.3 

2.3 

2.1 

2.3 

2.3

2.3 

2.1 

2.1 

2.1 

2.1

2.3 

2.5 

2.3 

2.0 

2.0

Minimum

1.2 

1.9 

3.1

.7

4.4 

3.9 

3.9 

2.8 

2.3 

2.0 

1.2 

1.2 

1.1

1.1

July

2.0 

2.0 

2.0

2.0

2.0 

2.0 

2.0 

2.1 

2.1

2.0 

2.0 

2.0 

1.8 

2.0

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.6 

1.5 

1.5 

1.4

1.4 

1.2 

1.4 

1.4 

1.4 

1.4

Aug.

1.4 

1.4 

1.4

1.2

1.2 

6.5 

6.3 

4.2 

3.2

3.0 

2.3 

2.0 

2.1 

2.0

2.0 

1.8 

1.6 

1.6 

1.8

1.8 

1.6 

1.5 

1.4 

1.5

1.5 

1.6 

1.6 

1.6 

1.5 

1.4

Mean

2.71 

8.64 

6.77

6.36

6.92 

6.31 

5.70 

3.51 

2.89 

2.30 

1.78 

2.11 

1.32

4.23

Sept.

1.2 

1.1 

1.1

1.1

1.2 

1.2 

1.4 

1.4 

1.4

1.4 

1.4 

1.2 

1.4 

1.4

1.4 

1.4 

1.5 

1.5 

1.5

1.6 

1.6 

1.5 

1.4 

1.4

1.2 

1.2 

1.1 

1.1 

1.2

Runoff In 

acre- feet

167 

514 

417

4,600

426 

350 

350 

209 

178 

137 

109 

130 

79

3,070

Peak discharge.- Nov. 13 (8 p.m.) 65 sec. -ft.; Nov. 23 (9:15 P.m.) 100 sec. -ft. s Dec. 27 (9 p.m.)

74 seo.-rt.; Aug. 7 (7:30 p.m.) 44 sec.-ft.

f Computed on basis cf partly estimated gage-height record.
SANTA MARGARITA RIVER BASIN 43 

Temecula Creek at Railroad Canyon, near Temecula, Calif.

i££nK^;Jatf-; Stage1 reCOrn e^' lat " 33 ° 28 '25", long. 1I7°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 960 feet.

Drainage area.- 592 square miles.

Records available^- January 1923 to September- 1947.

Average discharge.- 24 years, 29.0 second-feet.

Extremes . - Maximum discharge during year, 180 second-feet Dec. 26 (gage height 1 73 

J'eet ) ; minimum daily, 3.5 second-feet Aug 3 4 ' '

14 ' 6

Remarks -- Records fair. Pumping diversions affect flow during irrigation season.

"B«^h Ranch lg9 t MeC °^d a^do 28Z d^ schar£ e measurements furnished by Santa 

. S. Navy) and Pauba Ranch.

Discharge, in seocnd-fset, 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.

13

11

9.0

9.0

9.0

9.0

9.0

3.0

9.6

8.5

7.0

7.0

7.0

7.0

7.5

9.0

9.0

8.5

7.5

7.5

7.0

7.5

8.5

9.0

8.0

9.0

9.6

11

10

10

9.0

Nov.

9.6

9.0

8.5

8.5

8.5

9.0

10

11

9.6

11

13

16

26

43

21

13

11

11

13

17

30

16

36

58

17

15

15

15

14

13

~

Dec.

14

15

15

14

12

14

14

13

11

13

12

13

12

13

13

13

13

13

11

12

12

13

13

13

13

68

70

46

25

22

19

Jan.

17

16

16

16

16

17

15

16

14

16

13

16

16

15

13

12

13

12

14

15

13

13

13

13

13

13

13

14

16

11

12

Feb.

13

13

13

12

13

11

12

14

14

15

13

13

13

12

11

13

14

15

13

14

13

13

13

13

13

12

13

13

_

-

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

Angust .....................................

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

Water year 1946-47 ......................

Mar.

11

11

11

15

12

10

11

13

11

11

12

9.6

9.6

10

11

11

11

10

11

13

15

14

13

13

12

12

12

11

11

12

12

Apr.

10

11

11

9.6

9.0

9.6

9.6

11

11

10

10

8.5

9.0

9.6

8.5

8.5

8.5

8.5

9.6

10

11

11

10

9.6

9.6

10

9.6

9.0

9.0

9.0

-

Secondfoe t-days

271.7

50774' 7

4 ' 95"^ J * 9

442

364

361. 2

290.3

285.4

268.5

205.9

153.3

194.4

3,918.4

May

9.0

8.0

8.5

9.0

9.0

8.5

9.0

8.5

7.5

10

11

11

9.0

11

9.0

8.5

8.5

9.0

9.6

9.0

9.0

9.6

8.5

8.0

7.5

11

11

11

9.6

8.0

9.6

Maximum

13

70

420

17

15

15

11

11

12

9*6

6.6

7.5

70

June

9.0

9.0

9.0

9.6

9.0

8.0

8.5

9.6

8.0

8.0

9.0

10

9.6

9.0

9.6

9.6

8.5

9.0

9.0

9.0

8.0

8.0

7.0

7.0

8.5

10

9.0

12

10

9.0

-

Minimum

7.0

8.5 11

5.0

11

11

9*6

8« 5

7.5

7.0

5.0

3.5

4.7

3.5

July

9.6

8.0

7.5

7.5

6.6

6.6

6.6

5.4

5.0

6.2

6.2

6.6

6.2

6.2

6.2

8.0

5.4

6.6

7.0

6.6

6.6

6.6

7.0

7.5

6.6

6.2

6.2

6.6

6.2

6.2

6.2

Aug.

4.7

3.8

3.5

3.5

4.1

4.1

5.4

5.0

4.4

4.4

4.4

4.4

5.0

5.0

4.7

4.7

5.0

5.0

5.4

5.4

5.4

5.0

5.0

5.0

5.4

5.8

6.6

5.8

5.4

6.2

5.8

Mean

8« 76

16 «9

18.5

13.6

14 3

13!o

11.7

9* 68

9.21

8. 95

6.54

4.95

6.48

10.7

Sept.

5.0

5.0

4.7

4.7

5.8

6.6

7.0

7.0

7.0

6.2

6.2

6.6

7.0

7.5

7.0

6.6

7.5

7.0

6.2

6.6

7.0

7.0

6.6

6.2

6.6

6.2

7.0

7.0

6.6

7.0

Runoff in 

acre feet

539

1,010

1,140

' "^

877

722

716

576

56S

533

408

304

386

7,780

Peak discharge.- Nov. 14 (8 a.m.) 60 sec.-ft.j Nov. 21 (1:30 a.m.) 45 aeo.-ft.; Nov. 24 (2 a.m.) 

150 sec.-ft.fD5o. 26 (1:15 p.m.) 180 aec.-ft.j Dec. 27 (10 a.m.) 130 sec.-ft.
44 SANTA MARGARITA RIVER BASIN

Santa Margarita River near Fall Brook, Calif.

Location.- Water-stage recorder, lat. 33°24'35", long. 117°14 I 50", in NEj sec. 12, T. 9 

S., K. 4 W., 2 miles north of Fall Brook. Altitude of gage, about 290 feet. Auxiliary 

water-stage recorder on opposite bank about 2,000 feet downstream.

Drainage area.- 645 square miles.

Records available.- November 1924 to September 1947.

Average discharge.- 22 years (1925-47), 37.9 second-feet.

Extremes.- Maximum discharge during year, 500 second-feet Nov. 13 (gage height, 1.87 

feet; 2.23 feet on auxiliary gage); minimum daily, 2.8 second feet Aug. 3.

1924-47: 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 fair. Several diversions for irrigation above station.

Cooperation.- Gage-height record and 287 discharge measurements furnished by Santa MargarIta Ranch (U. S. Navy) and Pauba Ranch.

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.

10 

9.0 

7.5 

6.6 

7.5

7.5

s'.z

6.6 

6.2

5.4 

5.4 

5.8

6.2 

7.0

9.0 

9.0 

9.0 

9.0 

7.5

7.0 

7.5 

8.5 

8.5 

7.5

9.0 

10 

12 

12 

10 

10

Nov.

11 

9.0 

8.5 

9.0 

9.5

10 

10 

14 

13 

13

12 

17 

38 

58 

39

20 

18 

16 

17 

27

46 

27 

65 

90 

25

20 

19 

19 

16 

17

Dec.

15 

14 

14 

15 

16

27 

20 

16

14 

15

12 

15 

14 

17 

15

14 

14 

15 

14 

14

15 

15 

15 

16 

16

140 

110 

60 

35 

29 

26

Jan.

23 

23

21 

18 

18

17 

19 

17 

18 

18

16 

15 

15 

17

16

15 

14 

14 

14 

14

14 

14 

16 

15 

16

19 

15 

19 

20 

17 

17

Feb.

17

15 

14 

13 

13

12 

13

13 

15

16

13

14 

14 

14 

14

14 

27 

19 

16 

15

14 

14 

13 

14 

12

12 

13 

12

Month

Octo 

Nove 

Dece

Ca

Janu 

Febn 

Marc 

Apri 

Hay.

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1946 

ary

h. .....................................

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

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

ter year 1946-47 ......................

Peak discharge.- H

(3:30 p.m.) 155 360.

Mar.

13 

13 

13 

19

14

14 

12 

12 

12 

11

12 

11

11 

10 

10

11

12 

12 

11 

12

24 

17 

14 

13 

12

12 

12 

12 

12 

12 

11

Apr.

12 

13

12 

11 

12

11 

12 

12

12 

10

10 

9.6 

9.6 

9.6 

7.3

7.3 

6.8 

8.4 

9.5 

11

11 

13 

11 

10 

10

9.5 

9.5 

9.5 

9.0 

8.4

Secondfoot-days

247.6 

763.0 

787

5,349.8

524 

405 

396 

307.0 

242.2 

231.6 

168.7 

138.7 

175.1

4,386.9

May

6.8 

8.4 

6.3 

7.3 

7.1

6.2 

6.6 

5.8 

7.1 

7.7

7.7 

7.7 

8.5 

9.8 

3.1

6.9 

6.9 

7.7 

8.5 

7.7

6.6 

8.9 

8.5 

7.3

6.6

7.7

11 

10 

9.3 

9.8 

7.7

Maximum

12 

90 

140

480

23 

27 

24 

13 

11 

9.8 

7.8 

5.8 

7.2

140

June

8.1 

8.9 

8.1 

7.3 

8.9

6.2 

6.6 

8.9 

7.7 

7.3

7.7 

8.9 

8.1 

6.9 

7.3

7.7

8.1 

8.1 

8.5 

9.8

7.7 

7.3 

7.3 

6.9 

7.8

7.8 

7.8 

7.8 

8.4 

7.8

Minimum

5.4 

8.5 

12

2.5

14 

12 

10 

6.8 

5.8 

6.2 

4.4 

2.8 

3.8

2.8

July

7.8 

7.5

6.2 

5.7

" 5.2

5.7

6.2

d5.0 

d4.4

4.4

4.6 

5.2 

5.5 

5.7 

5.2

6.8 

6.8 

6.0 

5.2 

5.2

5.5 

5.2 

5.5 

5.0 

5.2

4.8 

4.8

4.6 

4.6 

4.6 

4.6

Aug.

4.8 

d4.0 

d2.8 

d2.9 

3.2

3.2 

3.6 

4.2 

3.8 

3.8

3.7 

4.1 

4.2 

4.5 

4.7

4.5 

4.5 

4.7 

5.0 

4.7

4.9 

5.0 

5.2 

5.2 

5.2

5.4

5.6 

5.8 

5.2 

5.4 

4.9

Mean

7.99 

25.4 

25.4

14.7

16.9 

14.5 

12.8 

10.2 

7.81 

7.72 

5.44 

4.47 

5.87

12.0

3V. 13 (2 p.m.) 500 sec. -ft. ; Nov. 14 (12:30 p.m.) 140 sec. -ft,; Nov. 

-ft.; Nov. 24 (8 a.m.) 150 sec. -ft.; Dec. 26 (5:30 a.m.) 385 sec. -ft.

Sept.

4.5 

4.4 

3.8 

3.8 

3.8

5.2 

5.6 

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

5.9 

5.9

5.8 

6.1 

7.2

6.5 

6.3

7.0 

7.0 

6.5 

6.3 

6.3

5.9 

6.1 

6.1 

7.0 

6.5

Runoff in 

acre-feet

491 

1,510 

1,560

10,610

1,040 

803 

785 

609 

480 

459 

335 

275 

349

8,700

23

; Dec. 25

d Doubtful gage-height record; discharge computed on basis of 4 discharge measurements.
SANTA MARGARITA RIVER BASIN 45 

Santa Margarita Rive^r at Ysidora, Calif.

Location - Water-stage recorder, Iflt. 33<14'40", long. 117C 22'50", in Santa Margarita Y 

Las Flores Grant, 1 mile downstream from Yfiidora, 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 1947.

Average discharge. - 19 years (1927-29, 1930-4''), 46.9 second-feet.

Extremes.- Maximum discharge during year, 422 second-feet Dec. 26 (gage height, 7.39 

reet) no flow for several months.

1923-29, 1930-47: Maximum discharge, 33,600 second-feet Feb. 16, 1927, by slopearea 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. 47 for records of O'Neill ditch near Ysidora.)

Cooperation.- Gage-height record and 129 discharge measurements furnished by Santa 

Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water yoar 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. Nov.

0

0

0

0

0

0

0

0

o

0

0

0

0

61

41

18

7.6

4.3

3.1

5.0

60

48

43

162

35

43

29

22

19

16

-

Dec.

15

15

13

12

11

12

26

21

16

14

12

12

12

11

12

12

12

12

12

10

5.9

4.8

5.6

6.3

10

154

239

183

101

69

56

Jan.

48

41

37

33

31

30

28

26

24

24

23

23

23

23

22

20

20

19

18

18

18

18

16

16

16

16

18

20

41

30

24

Feb.

19

18

18

16

16

15

16

16

18

20

19

18

16

16

16

16

18

26

22

19

18

16

15

14

14

14

14

14

^

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Peak discharge.- Hov. 14 (4:15 a.m.) 106 a 

2i6~ seo.-fET;" Dec. 26 (9 p.m.) 422 see,. -ft.

Mar.

14

14

15

16

19

16

13

12

13

13

12

10

8.6

7.2 6.;.

8.0

8,£.

8.0

9.1

10

30

21

13

9.H

8.0

5.9

5.S!

5.9

8.0

7.6

7.6

Apr.

7.1

7.6

7.6

10.0

8.0

7.6

6.6

5.9

5.6

4.6

3.8

2.9

2.2

1.4

1.0

.8

.9

.4

1.1

2.2

3.3

3.8

4.6

4.1

3.5

3.1

3.5

3.5

3.1

2.2

-

Secondfoot clays

0

1567

1,106.6

5,323.5

764

177

355.4

122.0

2.0

0

0

0

0

3,494

May

1.3

.6

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

162

239

700

48

26

30

10

1.3

0

0

0

0

239

June

Minimum

0

0

4.8

0

16

14

5.9

.4

0

0

0

0

0

0

July Aug.

Mean

0

22.2

35.7

15.4

24.6

17.0

11.5

-4.07

.07

0

0

0

0

9.60

Sept.

Runoff in 

acre- feet

0

1,320

2,190

11,200

1,520

946

705

242

4.0

0

0

0

0

6,930

eo.-ft,; Nov. 21 (5 p.m.) 88 sec. -ft.; Nov. 24 (5:30 a.m.)
46 SANTA MARGARITA RIVER BASIN

Murrieta Creek at Temecula, Calif.

Location.- Water-stage recorder, lat. 33°29 I 00", long. 117°08'SO", in Temecula Grant, 0.6 

mile upstrea-n from Temecula CreeK and 0.5 mile south of Temecula, Riverside County. 

Altitude of gage, about 1,050 feet.

Drainage area.- 320 square miles.

Records available.- October 1930 to September 1947.

Average discharge.- 17 years, 13.7 second-feet.

Extremes.- Maximum discharge during year, 125 second-feet Dec. 26 (gage height, 2.25 

1'eet); minimum daily, 0.3 second-foot July 27, 28, Aug. 4.

1930-47: 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 fair. No appreciable diversion above station.

Cooperation- Gage-height record and 287 discharge measurements furnished -by Santa Margarita Kanch (U. S. Navy) and Pauba Ranch.

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.

0.8 

.7

.5 

.6 

.6

.6 

.6

.6 

.6

.6

.6 

.6 

.6

.6 

.6

.7

.7

.7 

.7

.7 

.6 

.6 

.7 

.6

.7 

.7 

.9 

.9

.8 

.8

Nov.

0.8 

.8

.7 

.7 

.7

.8

.9 

.9

.9

1.6

10 

4.3

1.2

1.1 

2.5

19 

2.9 

17 

22 

3.7

2.3 

1.8 

1.7 

1.6 

1.6

Dec.

1.6 

1.6

1.5

1.4 

1.4

2.1

1.8

1.4 

1.5

1.4 

1.4

1.5 

1.3

1.5 

1.5 

1.5 

1.5 

1.7

48 

60 

25 

12 

8.5 

5.8

Jan.

5.2

3.8 

3.8 

3.5

3.5

3.3

2.9 

3.2

3.2

2.3 

2.3

2.4 

2.2 

2.2 

2.2 

2.3

2.3 

2.2 

3.2 

4.7 

3.2 

2.8

Feb.

2.4

2.3 

2.3 

2.3

2.2

2.2

2.4 

2.4

2.0

2.8 

2.5

2.0 

2.0 

2.6 

1.9 

1.7

1.7 

1.7 

1.9

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May. 

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber ...................................

lendar year 1946 

ary .

h. .....................................

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

ter year 1946-47 ......................

Mar.

1.6

1.8 

2.6 

2.8

2.2

1 Q

1.5

1.5 

1.4

1.2

1.3 

1.5

2.9 

2.8 

2.3 

1.9 

1.6

1.4 

1.3 

1.2 

1.2 

1.2 

1.1

Apr.

1.0

1.1 1.1

1.0 

1.0

1.0

.9

.8

.7

.8

.8

.8 

.8 

.9 

.9 

.9

.9 

.9 

.9

.9 

.8

Second 

foot-days

20.7 

112.2 

197.4

1,249.5

93.7 

62.7 

51.0 

.26.6 

26.2 

21.6 

13.6 

13.9 

14.0

653.6

May

3.8

.7 

.7

.8

.8

.8

.8 

.8

.8

.8 

.7

.9 

1.2 

1.2

1.0 

.8

.8 

1.0 

1.0 

.9 

.9 

.8

Maximum

0.9 

22 

60

240

5.2 

3.5 

2.9 

1.1 

1.2 

.8 

.6 

.9 

»7

SO

June

0.8

.8

.8 

.8

.8

.7

.8 

.8

.6

.8 

.8

.8 

.7 

.6

.8 

.8

.8 

.7 

.6 

.6 

.6

Minimum

0.5 

.7 

1.2

.4

2.2 

1.7 

1.1 

.7 

.7 

.6 

.3 

.3 

.4

.3

July

0.6

.5 

.5 

.5

.5

.5

.5 

.5

.4

.4

.4

.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.4 

.4 

.4

Aug.

0.4

.4 

.3 

.4

.4

.4

.4 

.4

.4

.4

.5 

.5 

.4 

.4 

.4

.5 

.5 

.6 

.9

.6 

.5

Sept.

0.7

.4 

.4 

.4

.4

.4

.5 

.5

.4

.4

.5 

.5

.5 

.6 

.6 

.5 

.5

.5 

.4 

.4 

.4 

.5

u»an Runoff in Mean acre-feet

0.67 41 

3.74 223 

6.37 392

3.42 2,480

3.02 186 

2.24 124 

1.6S 101 

.89 53 

.85 52 

.72 43 

.44 27 

.45 28 

.47 28

1.79 1,300

Peak discharge.- Nov. 14 (5 p.m.) 25 sec. -ft. j Nov. 21 (1 a.m.) 40 sen. -ft.; Nov. 23 (9:15 p.m.) 

80 sec. -ft.; "Dec. 26 (12:15 p.m.) 125 sec. -ft.; Dec;. 27 (10 a.m.) 95 sec. -ft.
SANTA MARGARITA RIVER BASIN 47 

O'Neill ditch near Ysidora, Calif.

Location.- Water-stage recorder, lat. 33°19'40", long..117°19'4b", 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 1947. 

Average discharge.- 17 years, 3.23 second-fe'et.

Extremes.- Maximum daily discharge during year, 13 second-feet Nov. 9; no flow during 

several periods.

1930-47: Maximum daily discharge, 35 second-feet May 24, 1937; no f^ow during parts 

of each year.

Remarks.- Records good. Ditch diverts water from left side of Santa Margarita River about 

b miles above station on Santa Margarita River at Ysidora.

Cooperation- Gage-height record and 186 discharge measurements furnished by Santa Margarita Kanch (U. S. Navy) and Pauba Ranch.

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.

8.9 

12 

9.8 

8.2 

8.5

8.2 

6.9 

6.7 

6.9 

6.7

6.4 

6.3 

6.4 

6.3 

6.2

8.2 

9.5 

8.8 

8.6 

8.8

8.3 

8.0 

8.0 

8.8 

7.9

7.6 

9.5 

12 

12 

11 

11

Nov.

10 

9.8 

9.5 

9.9 

9.6

9.8 

9.8 

12 

13 

12

11 

3.4 

.2 

0

0

0 

0 

0 

0 

0

0 

0 

.1 

.1

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

3.8

3.0 

7.7 

7.3 

7.3 

7.7

3.5 

.9 

.2 

0

0 

0

Jan. Feb.

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1946 

ary

h. .....................................

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

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

ter year 1946-47 ......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

3.1 

8.2 

7.2 

6.4 

6,0

5.3 

4.9 

5.3 

4.8 

4.0 

3.5

Apr.

Secondfoot-days

262.4 

120.2 

51.4

1,122.0

0 

0 

58.7 

30.7 

184.3 

163.7 

62.9 

40.7 

85.4

1,060.4

3.2 

3.3 

2.9 

3.1

2.0

1.9 

1.7 

1.2 

.9 

.7

.5 

.5

.4 

.2

0 

0 

0 

.5 

.6

.6 

1.1 

1.2 

1.1

1.0

1.0 

.7 

.2 

.1

0

May

0

4.3 

5.1 

5.2

5.1 

4.6 

4.5 

4.9 

5.5

6.4 

5.9 

5.3 

6.4

5.8 

5.7 

5.7 

5.5 

5.6

6.2 

7.7 

7.7

7.0 

6.3

6.8 

9.0 

9.3 

7.9 

8.5 

7.9

Maximum

12 

13 

8.5

19

0 

0 

8.2 

3.3 

9.3 

6.9 

5.1 

3.2 

4.6

13

June

6.9

6.0 

5.3 

4.9

5o3 

5.5 

5.7 

5.8 

5.2

5.8 

5.6 

4.9 

5.2

4.5 

5.0 

5.1 

5.1 

6.2

6.7 

5.6 

4.6 

4.9 

5.1

5.3 

5.3 

5.6 

5.6 

5.5

Minimum

6.2

0 

0

0

0 

0 

0 

0 

0 

4.5 

0 

0 

.3

0

July

5.1

3.9 

3.1 

3.2

3.2 

3.0 

3.1 

1.3 

.6

.9 

1.8 

2.2 

1.9

1.7 

1.4 

2.2 

2.4 

2.2

2.4 

2.0 

1.6 

1.7 

.4

1.4 

1.9 

1.3 

.4 

.6 

0

Aug.

0.5

1.4 

.5

.1

0 

0 

0 

.2 

.7

.5 

.1

.2 

.4

1.3 

1.8 

1.9 

1.2 

1.6

1.5 

2.0 

1.9 

2.4 

2.4

2.6 

3.2 

2.9 

2.1 

2.4 

2.5

Mean

8.46 

4.01 

1.66

3.07

0 

0 

1.89 

1.02 

5.95 

5.46 

2.03 

1.31 

2.85

2.91

Sept.

2.3

.5 

.3 

.5

1.1 

2.6 

2.8 

2.8 

2.8

2.8 

3.1 

3.5

3.5

2.6 

2.9 

3.4 

4.0 

4.1

4.6 

4.4 

3.4 

2.9 

2.6

2.7 

2.8 

3.8 

4.2 

3.7

Runoff in 

acre feet

520 

238 

102

2,220

0 

0 

116 

61 

366 

325 

125 

81 

169

2,100
48 SAN JUAN CREEK BASIN

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 1947.

Average discharge.- 19 years, 16.6 second-feet.

Extremes.- Maximum discharge during year, 59 second-feet Nov. 13 (gage height, 2.42 

reet); minimum daily, 0.1 second-foot on many days.

1929-47: Maximum discharge, 13,000 second-feet Mar. 2, 1938, by slope-area method, 

determined by Corps of Engineers, War Department, no flow at times during most summers.

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

San Juan Mutual Water Co. diverts water about 500 feet above gage.

Cooperation.- Fifty-three discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer, and eleven discharge measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

4

5

6

7

11

16

17

19

21

23

25

26

29

30

Oct.

0.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

.3

.4

.3

.2

.2

Nov.

0.2

.2

.2

.2

.2

.2

.4

.5

.3

.2

.4

7.8

21

13

9.8

8.4

7.8

6.0

4.5

5.8

6 3

5.0

9.0

7.5

5.0

4.1

4.1

4.1

4.1

4.1

-

Dec.

4.1

4.3

4.5

4.5

4.3

4.1

3 9

3.7

3.7

3.5

3.3

3.1

3.1

3.3

3.3

3.3

3.1

3.1

3.3

3.1

3.1

3.3

3.3

3.5

4.1

15

17

20

11

7.2

S.O

Jan.

5.8

5.5

5.5

4.7

4.5

4.5

4.5

4.5

4.3

4.3

4.3

4.3

4.3

4.1

4.1

4.3

4.3

4.3

4.5

4.7

4.7

4.5

4.3

4.3

4.1

4.1

4.1

4.7

4.5

4.1

3 9

Feb.

4 1

4.1

4.1

3.9

3.7

3.7

3.9

3.9

4.1

4.1

4 1

4.1

4.1

4.5

4.5

4.3

5.8

5.2

4.3

4 1

3.7

3.5

3.1

a2.8

a2.4

a2 .8

a3.2

a3.3

.

_

-

Month

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

Calendar year 1946 ......................

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

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

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

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

Water year 1946-47 ......................

Mar.

a3.4

a3.5

a3.7

3.3

3.0

2.8

2.6

2.5

2.5

2.5

2.5

2.0

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.6

2.0

1.8

l.fi

1.4

1.2

1.0

.9

.9

.9

.9

.9

Apr.

0 9

.9

.9

.9

.7

.8

.9

.9

.8

.8

.6

.2

.1

.1

.1

.1

.1

.2

.2

2

.4

.4

.4

.4

.5

.6

.7

.8

.8

Second 

foot-days

166.1

1,062.8

4.0

676.0

May

0.8

.6

.6

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.4

.4

.3

.3

.3

.3

.6

1.9

.8

.2

Maximum

20

55

5

S fi

.2

21

June

0.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.4

.6

.8

.8

.9

.5

2

.2

.2

.2

.2

.2

.2

.3

.2

Minimum

3.1

.1

3

.1

.1

July

0.2

.2

.2

.2

.3

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.4

.4

.5

.5

.5

.5

.5

.5

.3

.?

.2

.2

.1

.1

.1

Aug.

0.1

.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

.2

.2

.2

.2

.1

Mean

5.36

2.91

3 ' o91

32

32

.13

1.85

Sept.

0.1

.2

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.2

.2

2

.1

.1

.1

.2

.2

.1

Runoff in 

acre-feet

329

2,110

32

7.9

1,340

Peak discharge.- Nov. 13 (l p.m.) 59 sec. -ft.: Nov. 23 (3 p.m.} 16 sec. -ft.; T)ec. 26 (S a.m.)

29 sec.-ft.

a No gage-height record; discharge interpolated or computed on t>asis of 2 discharge measurements.
SAN JUAN CREEK BASIN 49

Trabuco Creek near* San Juan Capistrano, Calif.

Location.- Water-stage recorder, lat. 33°31'30", long. 117°40'15", in SW£ sec 25 T 7 

b - K - 8 w -> °n State highway bridge, 1.5 miles north of San Juan Capistrano. '

Drainage area.- 36.5 square miles.

Records available.- October 1930 to September 1947.

Average discharge.- 17 years, 7.11 second-feet.

Extremes.- Maximum discharge during year, 92 second-feet Nov. 23 (gage height 2 43 

reetj; no flow during most of year.

1930-47: Maximum discharge, 9,240 second-feet Feb. 6, 1937; no flow during part 

of each year. e r

Cooperation. - Rec

israaiey, riood 

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. Nov.

0 

0 

0 

0 

0

0 

0

0 

0 

0

0 

.2 

2.0 

3.6 

0

0 

0 

0 

0 

0

0 

0 

33 

30

7.0

1.5 

0 

0 

0 

0

ords furnished by Orange County Flood Control District, through J A 

-control engineer.

;harge, in seccnd-feet, water year October 1946 to September 1947

Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o 

o

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

13 

32 

32 

15 

8.0 

6.6

Jan.

3.0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o

Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

lendar year 1946 

ary

h. ................. ...................

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

St. ....................................

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

ter year 1946-47 ......................

Mar. Apr.

Secondfoot-days

0 

77.3 

106.6

190.0

3.0 

0 

O 

0

o

0 

0 

0 

0

186.9

May

Maximum

0 

33 

32

33

3.0 

0 

0

o

0 

0 

0 

0 

0

33

June

Minimum

0 

0 

0

0

0

§ 

0

o

0 

0 

0 

0

o

July Aug. Sept.

 _ ._ Runoff in 

Mean acre-feet

0 0 

2.58 153 

3.44 211

.52 376

.10 6.0 

0 0 

0 0

o o

0 0 

0 0 

0 0 

0 0

o o

.51 ' 370
50 ALISO CREEK BASIN

Aliso Creek at- El Toro, Calif.

Location.- Water-stage recorder, lat. 33°37'15", long. 117°41 l aO", in Canada do los 

Alisos Grant, on Ce 'un1 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 1947.

Average discharge.- 17 years, 0.99 second-foot.

Extremes.- Maximum discharge during year, 90 second-feet Nov. 23 (gage height, 6.70 

feet); no flow during most of year.

1930-47: 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. 

Braciiey, flood-control engineer.

Discharge, in second-feet, water year October i94ti to September 1947

Day

1

2

3

4

5

6

1

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. Nov.

0

0

0

0

0

0

0

0

0

0

0

o

4.2

5.3

0

0

0

0

0

0

0

0

14

0

O

0

0

0

0

oDec.

0

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

8.6

0

0

0

0

Jan. Feb.

Month

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

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

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

Calendar year 1946 ......................

January. ................ it. ............... . February. ..................................

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

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

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

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

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

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

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

Water year 1946 47 ......................

Mar. Apr.

Secondfoot-days

0

23.5

16.6

61.7

0

0

0

0

38.6

0

0

0

0

78.7

May

0

0

0

0

0

0

0

4.6

21

13

O

0

0

0

0

0

o

0

0

0

0

0

o

0

0

o

0

0

0

0

0

Maximum

0

14

8.6

21

0

0

0

0

21

0

0

0

0

21

June

Minimum

0

0

0

0

0

0

0

o

0

0

0

0

0

0

July Aug.

Mean

0

. 78

.54

.17

0

0

0

0

1.24

0

O

0

0

.22

Sept.

Runoff in 

acre-feet

47

33

123

0

0

0

0

77

0

0

0

0

157
SANTA ANA RIVER BASIN 51 

Santa Ana River near Mentone, Calif.

Location - Water-stage recorder, lat. 34°06'40", long. 117°06'00", in SW£ sec. 4, T. 1 S., 

m 2~¥., near mouth of canyon, 0.4 mile upstream from Southern California Edison Co.'s 

Santa Ana River No. 3 power plant (formerly called Mentone power plant), 2 miles upstream from Mill Creek, and 3.5 miles northeast of Mentone. Datum of gage is 1,984.3 

feet above mean sea level, datum of 1929. Auxiliary water-stage recorder at Greenspot 

Bridge 1 mile downstream.

Drainage area.- 202 square miles (revised), at present site; 195 square miles (revised), 

at rormer site. These figures include the area tributary to Baldwin Lake at the head 

of Bear Valley.

Records available.- October 1914 to September 1947. 

1.5 miles upstream above Warm Spring Canyon.

July 1896 to September 1914 at site

Average discharge.- 33 years (1914-47), 40.0 second-feet. Average combined discharge of 

Santa Ana Kiver and canals, 33 years (1914-47), 98.7 second-feet.

Extremes (river only).- Maximum discharge during year, 1,450 second-feet Nov. 23 (gage 

neight, Y.Y5 I'eet); no flow at times during several months.

1896-1947: 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 fair. Storage at Bear Valley Reservoir (capacity, 72,000 acre-feet) 

and diversions above station. Sum of discharge of river, Southern California Edison 

Co.'s canal, and Greenspot pipe line near Mentone, is given in table on following page.

Discharge, in second-feet, water year October 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.

12

.5

o

0

0

0

0

0

0

0

0

0

0

0

0

o

o

0

0

0

0

0

0

0

0

o

0

33

3.5

0

0

Nov.

0

1.0

.2

.3

0

0

0

14

2.0

.1

1.5

3.5

111

f95

a5.O

a3.0

a2.5

a2.0

fl.5

207

f!75

f!5

f560

a275

a70

f35

22

16

14

7.0

Dec.

2.0

5.2

6.0

5.2

5.2

25

13

9.0

8.5

4.1

5.2

4.8

4.5

4.5

5.2

5.2

5.2

5.6

5.6

5.6

4.8

4.1

3.8

3.5

6.0

33

123

110

29

15

alZ

Jan.

all

flO

9.0

8.0

7.0

.0

.0

.6

5. 3

.8

.6

.6

.4

.2

.2

.6

.4

.4

.6

.4

.4

.6

.8

.4

.2

.2

.O

34

21

13

9.5

Feb.

6.4

6.1

5.6

5.3

4.8

4.6

4.4

4.4

4.4

5.3

4.6

4.4

4.2

4.2

4.0

4.0

29

44

44

42

44

42

42

36

31

31

33

33

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

September. ..............................."..

Water year 1946-47 ......................

Mar.

33

33

33

39

36

38

38

35

35

34

39

42

40

40

36

29

30

33

33

35

36

35

35

34

34

33

34

44

39

35

31

Apr.

fZE

al.O

al.O

al.O

al.O

al.O

fl.O

1.0

1.0

1.0

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

.9

.8

.8

.8

.7

Secondfoot-days

49.0

1 , 638 . 6

478.8

4,204.7

226 . 2

527.7

 1,101

47.5

15 2

3)2

0

3.2

0

4,095.4

May

0.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.6

.5

.4

.4

.4

.4

.4

.3

.3

.3

.3

.4

.3

.3

.3

.3

Maximum

33

560

123

560

34

44

44

22

.7

.3

0

3.5

0

560

June

0.3

.3

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0-

Minimum

0

0

2.0

0

4.0

4.0

29

.7

.3

0

0

0

0

0

July Aug.

0

O

0

0

0

0

3.5

1.2

1.1

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

O

0

0

Mean

1.58

54.6

15.4

11.5

7.30

18 .8

35.5

1 .58

.49

.11

0

. 26

0

11.2

Sept.

*

Runoff in 

acre-feet

97

3,25O

950

8,340

449

1,050

2, ISO

94

3O

6.3

0

16

0

8,120

Peak discharge.- Nov. 15 (4:50 p.m.) 550 see.-ft.; Nov. 2O (6 p.m.) 430 sec.-ft.; Nov. 23 (2 p.m.) 

1,450 see.-ft.J Dec. 27 (7:30 p.m.) 290 see.-ft.

a No gage-height record; discharge computed on basis of normal recession and interpolation. 

f Computed on basis of partly estimated gage-height record.
53 SANTA ANA RIVER BASIN

Combined discharge, in second-feet, of Santa Ana River and canals near Mentone, Calif., 

water year October 1946 to September 1947

Day

1

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

19

21

23

24

26

27

28

29

30

31

Oct.

95

44

39

63

55

47

48

55

57

57

55

54

55

55

55

55

47

46

43

41

41

41

46

47

51

51

57

111

64

44

41

Nov.

42

42

38

36

40

44

44

68

44

35

40

46

158

149

66

57

50

48

48

263

227

94

591

314

146

110

97

89

85

77

-

Dec.

67

66

57

56

58

70

69

62

58

53

54

55

54

50

49

48

47

48

47

47

46

43

42

66

66

110

201

175

107

90

81

Jan.

79

77

68

65

63

62

59

59

56

55

53

50

51

50

48

45

45

43

43

43

44

44

42

43

41

41

39

63

62

53

49

Feb.

45

43

44

43

44

44

43

43

43

48

48

42

42

43

43

43

45

46

46

44

46

44

44

42

40

40

42

42

-

_

-

Month

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

Calendar year 1946 ......................

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

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

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

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

Water year 1946-47

Mar.

42

42

42

48

45

47

47

44

44

43

44

44

42

42

40

38

39

42

42

44

45

44

44

43

43

42

43

53

48

44

40

Apr.

39

44

44

46

44

44

44

44

44

55

46

44

44

44

43

43

42

42

42

42

42

47

45

44

44

45

45

45

44

42

-

Secondfoot-days

2,142

25,353

1

1,447

20,680

May

39

70

64

60

54

52

52

52

54

65

66

64

61

63

57

56

56

51

49

49

49

51

49

51

50

51

55

52

53

50

53

Maximum

591

201

591

59

59

591

June

51

50

56

57

57

57

57

55

59

58

58

58

56

51

51

48

52

51

51

54

56

56

55

55

51

51

51

51

49

49

-

Minimum

42

35

39

39,Q

38

35

July

55

55

64

66

63

59

61

57

58

58

63

63

61

59

61

61

56

56

57

57

55

51

55

53

53

53

51

51

53

56

55

Aug.

56

55

56

56

54

54

72

46

66

61

54

46

53

55

56

56

54

49

46

51

55

47

48

47

47

51

54

48

47

47

41

Mean

69.1

69.5

52 7

52 5

48.2

56.7

Sept.

41

47

51

54

53

53

53

58

59

55

51

50

51

45

45

45

46

44

39

38

42

45

45

46

47

48

51

52

49

44

-

Runoff in 

acre- feet

4,250

50,300

2,870

41,010
SANTA ANA RIVER BASIN 5; 

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

Location.- Water-stage recorder, lat. 34°04'00" long. 117 0 17'45", in San Bernardino 

Grant, at E Street Bridge, 0.8 mile downstream from San Timoteo Creek, 1 mile 

upstream from Warm Creek, and 3 miles south of San Bernardino, San Bernardino County. 

Altitude of gage, about 970 feet.

Records available.- March 1939 to September 1947.

Extremes.- Maximum discharge during year not determined; no flow during parts of August 

and September.

1939-47: Maximum stage recorded, 6.50 feet Jan. 23, 1943; maximum discharge 

an2ertain; no flow on many days each year.

Remarks.- Records poor. Many diversions above station.

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.

_

tO. 2

-

_

-

_

-

_

-

-

_

-

-

-

-

_

-

t . 3

.3

5

5

4

4.0

2.5

2.1

2.5

4.0

11

1.5

1.2

.5

Nov.

0,1

.1

.1

,5

,1

.5

..5

t37

_

-

_

t21

.-

..

t!8

_

-.

..

-.

t!72

..

-.

..

..

*20

..

_.

..

_.

_.

-

Dec.

_

-

-

_

-

tie

_

_

_

-

_

-

te

-

-

_

-

_

-

t8

_

-

-

-

-

t73

_

-

_

_

-

Jan.

_

-

tie

_

-

_

_

_

_

t20

_

-

_

_

-

_

t!5

_

-

-

_

-

-

t21

-

_

_

_

_

_

-

Feb.

_

-

t23

_

-

_

-

_

-

-

_

-

_ n~>

-

_

-

_

_

t!4

_

_

-

_

t2.8

_

_

_

_

_

-

Month

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

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

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

Calendar wftar T Q.1R

Janu 

Febr

ary. ...................................

larv

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

Apri 

Hay

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

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

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

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

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

Water year 1946-47 ......................

liar.

.

_

t!2

_

-

_

_

.

_

-

_

t4.7

_

_

-

_

_

_

t3.6

-

_

_

-

t7.2

-

.

_

_

_

_

t3.5

Apr.

_

_

_

_

-

.

_

_

tl.2

-

_

_

_

_

t .2

_

-

_

_

-

_

_

t2.3

_

-

.

_

t3.7

_

-

Secondfoot-days

_

-

-

_

-

_

_

_

-

-

May

.

_

_

-

tO. 5

_

_

_

_

-

_

_

t3.0

_

-

_

_

_

t2.0

-

_

.

_

_

-

_

_

_

tl.O

-

Maximum

_

-

2,ooo

-

_

-

_

_

_

-

-

June

_

_

tl.5

.

-

_

_

_

_

-

_

t.2

_

_

-

_

_

_

_

t2.3

_

_

_

_

-

t2.9

_

_

_

-

Minimum

July

tO. 3

-

-

.

-

_

-

_

-

-

t2.2

-

_

-

-

_

-

t.6

_

-

_

_

-

tl.3

-

.

_

_

.

_

t.9

Aug.

_

-

-

-

-

_

-

tl.3

_

-

_

_

_

_

to

_

-

-

_

-

_

to

_

.

-

.

_

_

to

-

Mean

1.5

42

25

D 8.42

20 

18

7.0

2.0 

2.0

2.0

1.2

.4

.1

10.0

Sept.

_

-

-

-

to

_

-

_

_

-

_

to

_

.

-

_

_

_

t.2

-

_

_

_

_

-

t.2

_

_

_

-

Runoff in 

acre- feet

92

2,500

1,540

6,090

1,230 

1,000

430

119 

123

119

74

25

6

7,260

t Result of discharge measurement.

Note.- No daily discharge record except Oct. 19 to Nov. 7. Monthly discharge computed on basis of 

49 discharge measurements and records for nearby stations.

854211 O - 49 - 5
54 SANTA ANA RIVER BASIN

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

Location.- Water-stage recorder, lat. 33°57'55", long. 117°27'55", in Jurupa (Stearns) 

want. at Pedley Road Bridge, 3.3 miles northwest of Arlington, Riverside County. 

Datum of gage is 669.87 feet above mean sea level {levels by Riverside County engineer) 

Auxiliary high-water gage at site 1.2 miles upstream.

Records available.- January 1929 to September 1947.

Average discharge.- 17 years (1929-37, 1938-47), 64.1 second-feet.

Extremes - Maximum discharge during-year not determined; maximum gage height, 3.fa8 feet 

Dec7~Z6; minimum daily, 20 second-feet Aug. 5-7, Sept. 5.

1929-47: Maximum discharge, 100,000 second-feet Mar. 2, 1938, by slope-area 

method; minimum daily, that of Aug. 5-7, Sept. 5, 1947.

Remarks - Records in general fair except those for Nov. 13, 14, 23, 24, Dec. 26 to Jan. 12, 

wnicn are poor. For many other individual days, records 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.

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.

34

35

35

35

34

35

34

32

35

31

28

26

26

29

29

34

34

34

31

31

32

32

31

29

31

32

37

41

41

39

39

Nov.

37

34

32

35

39

37

34

105

43

39

46

96

eSOO

6350

85

66

59

49

49

165

155

85

eSOO

e300

132

127

118

109

105

105

-

Dec.

93

101

123

114

123

143

127

114

123

118

118

118

127

123

127

132

132

109

109

105

114

114

118

127

153

eSOO

eSOO

e300

e240

e200

e!90

Jan.

e!90

e!90

e!85

e!85

e!85

e!85

e!90

e!8o

e!6o

e!55

e!55

elSO

154

154

154

115

109

109

133

121

133

140

121

133

115

103

121

147

127

121

115

Feb.

97

127

133

121

115

115

109

97

97

200

175

168

161

140

140

133

127

133

109

109

97

65

65

65

80

65

55

65

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

55

65

70

107

91

70

70

80

91

91

85

48

55

55

46

42

46

38

55

70

65

46

46

42

38

38

38

60

46

34

43

Apr.

55

46

55

50

46

38

38

46

50

50

50

55

46

50

55

50

50

55

46

46

38

46

38

42

38

34

28

38

34

34

-

Secondfoe t-days

1,026

3, 636

4,935

26,622

4,535

1 829

1 347

l)l40

982

814

7*7A 1 to

844

25,029

Itoy

31

31

25

25

28

28

28

31

31

28

34

25

31

42

42

38

42

50

50

46

46

42

42

46

34

42

42

46

38

42

34

Maximum

41

500

500

500

190

200

107

55

50

42

31

34

34

500

June

34

42

38

38

38

38

38

38

38

34

38

31

38

38

38

34

34

34

34

31

31

22

25

28

22

25

22

31

25

25

-

Minimum

26

32

93

22

103

55

34

28

25

22

22

20

20

20

July

22

28

31

28

22

28

28

28

28

25

31

22

25

28

25

28

25

25

25

28

25

28

31

28

25

28

22

25

22

22

28

Aug.

25

25

25

28

20

20

20

25

22

22

25

22

22

22

25

31

22

25

22

22

25

28

22

28

31

28

28

28

31

34

25

Mean

33.1

121

159

72.9

146

113

59.0

44 9

we" a

32 7

26 .3

25.1

28.1

68.6

Sept.

22

22

22

22

20

25

31

31

28

28

28

31

34

28

31

28

31

31

28

28

28

31

28

28

25

31

28

28

34

34

-

Runcff in 

acre-feet

2,040

7,210

9,790

52,790

9 OOD

6^270

2^670 2 j 260

1 950 i)eio

1,540

1,670

49,640

e Stage-discharge relation uncertain; discharge computed on basis of Individual discharge measurements at this station, records of discharge at stations above and below In Santa Ana River Basin, 

and weather records.
SANTA ANA RIVER BASIN 55

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 1947 (irrigation seasons only). 

Remarks.- Records fair.

Cooperation.- Twenty discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer_

Discharge, In second-feet, January to December 1947

Day

I

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Jan.

t!28

Feb.

tllO

-

-

-

Mar.

t71

Apr.

_

_

_

_

-

_

_

_

_

-

_

_

_

-

-

_

_

_

_

-

_

_

_

-

t56

_

_

t58

68

58

-

May

46

41

41

36

44

46

41

52

46

39

39

34

36

46

49

49

46

46

52

49

52

49

46

39

39

41

46

36

32

39

39

Month

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

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

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

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

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

October. .

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

The period. ..............................

June

41

41

46

44

44

46

49

46

39

34

32

27

27

36

36

34

36

34

32

39

36

32

30

36

39

34

25

22

29

29

-

July

25

22

34

32

25

29

30

29

24

29

29

30

27

30

27

29

32

29

20

a2o

a22

a24

27

27

22

20

19

20

21

19

22

Aug.

22

22

22

27

25

24

24

30

25

27

29

25

25

30

34

30

25

25

21

20

20

25

25

27

3O

29

34

34

36

39

34

Second- .... , foot-days ««i»»»

1,336 52

1,075 49 795 34

845 39

861 41

1,340 55

1,509 68

-

Sept.

30

19

17

18

20

24

27

29

29

27

36

41

36

30

27

22

25

29

25

27

27

27

29

30

32

32

34

34

39

, 39

-

Minimum

32

22

IS 

2C

17

3,

36

-

Oct.

39

41

39

36

34

36

36

36

39

49

55

52

49

44

41

44

49

49

44

44

44

44

46

52

46

44

41

33

41

41

46

Nov.

41

44

41

44

49

44

46

55

58

52

52

52

49

61

61

61

52

52

52

58

68

55

46

36

41

49

46

46

46

52

-

Dec.

t52

-

_

.

t!85

_

-

-

-

-

.

_

_

-

-

.

-

_

-

-

.

-

-

-

-

.

-

-

-

-

-

 _ Runoff in "ean acre-feet

43*1 2,65O

35*8 2,13O

25.6 1,580

27.3 1,680 

28. 7 1 , 71O

43.2 2,66O 

5O.3 2,99O

15,40O

t Result of discharge measurement.

a No gage-height record; discharge computed on basis of records for stations at Riverside Narrows, 

at AuburndaK Bridge, and below Prado Dam.
56 SANTA ANA RIVER BASIN

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

Location.- Water-stage recorder, lat. 33°55'30", long. 117°35'40", in Jurupa Grant, at 

AuDurndale Bridge, 2 miles upstream from Temescal Creek, and 4 miles northwest of 

Corona, Riverside County.

Records available.- May 1930 to November 1947 (irrigation seasons only). 

Remark:s.- Records fair.

Cooperation.- Twenty discharge measurements furnished by Orange County Flood Control 

District, through J. A. IJpadley, flood-control engineer.

Discharge, in second-feet, January to December 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

Jan.

t!67

Feb.

t!30

_

_

-

Mar.

t!07

Apr.

_

_

_

_

-

_

.

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

t56

_

_

t64

72

66

-

May

59

53

57

55

53

52

52

55

53

52

50

48

48

57

55

57

55

53

57

55

55

55

59

55

55

53

55

55

52

50

52

Month

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

June ..... 

July. ................. ' ' ' '

Augu 

Sept

octo 

Nove

st...

ember

3er. .

Tiber.

The period. .............:................

June

52

52

53

55

55

57

59

55

53

57

50

44

42

48

50

45

44

48

53

57

50

50

4$

48

52

45

39

41

41

37

July

38

33

41

41

36

36

37

34

33

32

32

34

34

37

34

34

37

38

32

32

33

34

34

34

33

32

30

29

29

32

29

Aug.

30

28

32

33

32

36

36

34

36

36

37

37

38

41

37

37

36

37

32

30

31

33

37

37

38

39

44

42

41

39

38

Seccnd u foct-days Maximum

1,672 59

1,480 59 

1,054 41

1,114 44 

X 213 52

l!696 68 

1,809 77

-

Sept.

34

30

27

28

30

32

37

39

39

38

45

52

44

44

44

44

44

41

42

42

42

42

41

42

44

42

44

47

48

45

-

Minimum

4£

37 

2£

28 

21

47 

5J

Oct.

47

47

48

53

53

57

52

47

48

48

57

59

68

63

57

53

59

59

55

52

50

55

57

57

61

55

55

53

53

57

61

Nov.

57

53

53

52

55

52

57

53

52

52

52

52

52

53

63

63

63

63

68

70

77

70

66

61

57

63

70

72

68

70

-

Dec.

t74

-

_

-

t250

_

_

-

.

-

_

_

.

-

-

_

_

-

-

-

_

_

-

_

-

_

_

.

_

-

-

.. Runoff in *ean acre-feet

53.9 3,320

49.3 2,940

34.0 2,090 

35.9 2,210 

40.4 2,410

54.7 3,360

60.3 3,590

19,920

t Result of discharge measurement.
SANTA ANA RIVER BASIN 5 

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 1947. January 1919 to November 1940, and 

for irrigation seasons May to November 1941, 1942, 1946-47 at site 3 miles downstream 

published as Santa Ana River near Pradc (see following page).

Average discharge.- 28 years (1919-47), 147 second-feet.

Extremes.- Maximum discharge during year, 650 second-feet Nov. 15 (gage height, 3.64 

reet); minimum daily, 36 second-feet Aug. 1, 2.

1940-47: Maximum discharge, 2,260 second-feet (regulated) Dec. 24, 1940 (gage 

height, 3.20 feet); minimum daily, 36 second-feet Aug. 1, 2, 1947.

Remarks.- Records fair. Many diversions above station for irrigation. Discharge regulated by Prado flood-control dam.

Cocperaticn - Fifteen discharge measurements furnished by Cor (J s of Engineers; twenty 

furnished by Orange County Flood Control District, through J. A. Bradley, flood control engineer.

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.

74

72

68

74

66

64

63

61

63

61

61

59

61

61

64

70

76

74

72

72

63

66

66

64

S4

63

78

84

86

84

82

Nov.

80

80

74

74

82

86

86

154

126

83

100

224

380

624

556

277

129

127

158

171

374

168

232

541

386

188

180

173

173

173

-

Dec.

173

170

175

195

198

180

206

173

168

1S3

170

160

175

173

168

170

163

168

185

195

193

200

190

200

240

530

625

620

515

285

263

Jan.

e257

e250

e246

e242

6239

6235

6234

6232

e231

e229

e223

6226

6225

220

220

203

200

203

205

205

205

200

208

193

6190

e!90

188

198

250

195

205

Feb.

e20'j

6195

190

190

180

176

171

elVO

6170

e225

e200

6190

e!80

e!75

e!75

173

162

162

164

169

162

152

143

134

145

136

138

129

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

131

141

134

183

174

154

138

136

136

138

138

126

111

111

107

105

107

113

118

131

141

122

118

111

109

107

103

101

106

99

99

Apr.

94

94

92

94

92

90

88

88

94

90

94

80

72

70

74

74

76

82

as

88

88

88

88

84

80

80

84

84

82

78

-

Second 

foot-days

2,146

6,134

7,389

44 813

6,752

4,753

3,848

2,548

2,402

1,969

1,435

1,413

1,606

42,449

May

72

70

70

72

74

76

76

78

78

74

76

76

76

82

84

as

80

78

82

82

82

84

86

80

74

76

82

80

74

72

70

Maximum

86

624

625

715

257

225

183

94

86

76

58

56

59

625

June

74

74

76

74

74

68

70

72

68

74

74

66

66

70

68

58

55

59

64

70

64

63

59

51

63

63

58

56

5i

**

Minimum

59

74

160

43

188

129

99

70

70

53

37

3S

43

36

July

53

50

58

55

54

51

50

50

47

47

45

44

43

44

45

44

48

47

44

45

51

50

50

47

43

41

39

37

39

37

37

Aug.

36

36

39

44

44

41

41

44

44

43

45

41

40

39

40

43

43

47

47

45

45

45

48

50

54

56

56

56

54

54

53

Mean

<59.2

206

238

123

218

170

124

84.9

77.5

65 . 6

46.3

45.6

53.5

116

Sept.

51

48

44

43

47

51

54

56

56

54

51

50

51

56

58

53

56

58

56

58

58

59

54

53

54

54

56

54

54

54

Runoff in 

acre-feet

4,260

12,270

14,660

88, 890

13,390

9,430

7,630

5,050

4,760

3,910

2 , 850

2,800

3,190

84,200

e Stage-discharge relation uncertain; discharge computed on basis of frequent discharge measurements and interpolation.
58 SANTA ANA RIVER BASIN 

Santa Ana River near Prado, Calif.

Location.- Water-stage recorder, lat. 33°52'05", long. 117°40'20", in Lomas de Santiago 

urant, 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, 1945-1947.

Average discharge.- 21 years (1919-40), 145 second-feet.

Extremes.- 1919-47: 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 good. Diversions for irrigation, and regulation by Prado flood-control 

dam aoove station.

Cooperation.- Nineteen discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, January to December 1347

Day

1

2

3

4

5

6

7

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.

_^

T195

Feb.

t!64

-

-

-

Mar.

t!28

Apr.

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

.

,_

_

_

-

_

_

_

_

t96

_

_

t95

92

90

-

May

83

75

72

71

74

77

75

75

77

75

72

69

69

82

86

85

85

80

80

80

78

82

86

83

78

82

88

82

77

69

69

Month

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

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

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

August ......... i ...........................

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

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

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

The period. ...............................

June

73

71

74

73

74

69

68

66

66

69

66

57

54

59

63

59

61

62

64

68

68

66

61

62

65

69

64

62

61

57

-

July

55

48

48

47

46

46

52

50

47

47

44

46

44

44

46

46

50

54

43

42

46

47

45

46

43

39

37

36

35

34

33

Aug.

37

4

4

4

1

1

1

41

37

3

3

3

7

8

8

37

41

3

3

3

9

6

7

39

41

4

4

4

3

4

2

38

40

4

4

4

3

6

6

50

51

5

4

4

5

1

3

7

3

49

Second- u-.j ,., foot-days "Miw>»

2,416 88

1,948 74

1,386 55

1,310 51

1,497 57

2,017 73

2,363 98

-

Sept.

46

41

37

36

38

43

47

49

52

52

55

57

54

49

49

46

47

50

51

53

54

 56

54

54

54

53

53

55

56

57

-

Minimum

69

54

53

36

36

59

64

-

Oct.

60

64

64

62

61

61

64

60

59

59

67

68

68

73

65

62

64

64

60

60

60

59

65

71

73

70

68

70

70

73

73

Nov.

71

71

69

71

73

71

64

69

77

77

73

73

69

75

83

85

75

79

83

79

88

85

81

79

81

90

93

88

93

98

-

Dec.

t!07

_

_

_

t!43

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

_

-

 ,_, Runoff in 1188111 acre-feet

77.9 4,790

64.9 3,860

44.7 2,750

42.3 2,600

49.9 2,970

65.1 4,000

78.8 4, 690

25,660

t Result of discharge measurements.
SANTA ANA RIVER BASIN 59

Santa Ana River at Santa Ana, Calif.

Location.- Water-stage recorder, lat. 33°45'00", long. 117°54'20", In Las Bolsas Grant,

 0.1 mile upstream from Fifth Street Bridge In Santa Ana, Orange County, and 2 miles 

downstream from Santiago Creek. Altitude of gage, about 80 feet. Auxiliary waterstage recorder on opposite bank removed Jan. 27, 1947.

Records available.- January 1923 to September 1947. 

Average discharge.- 24 years, 26.7 second-feet.

Extremes.- Maximum discharge during year, 243 second-feet Nov. 14 (gage height, 1.51 

reet); no flow during several months.

1923-47: 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.- Thirty-eight discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, water year October 1946 tc 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. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

f3.7

100

f!8

.5

0

0

0

5.2

18

f7.9

f7.6

105

47

a2.S

al.O

a2.S

a4.0

a3.4

.

Dec.

a2.8

2.2

1.9

2.1

3.1

2.8

8.8

5.0

3.5

4.1

f5.5

a4.2

a3

a2.2

al.4

f.7

f.7

fl.O

f.7

f.2

1.4

2.1

f2.1

2.6

23

57

117

82

f53

f!8

8.9

Jan.

10

9.6

2.9

2.6

4.5

7.6

8.3

7.0

5.5

4.5

6.0

7.0

7.6

all

al4

a!2

a9

a6

a3

aO

aO

a2.8

a2.4

a2

al

ao

1.0

4.8

12

10

10

Feb.

8.3

5.5

4.1

4.1

3.3

1.8

1.2

1.2

1. 2

2.8

8.3

2.9

2.6

fl.Z

.2

1.4

3.3

2.4

fl.O

3.1

5.5

1.4

.9

.2

.1

.1

0

0

_

 _

-

Month

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

Calendar year 1946 ......................

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

Bay........................................

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

Water year 1946-47 ......................

Mar.

1.1

0

0

0

.2

.4

.2

.2

.2

.3

.1

0

.2

.2

f.2

.2

f.l f.l-

.1

.3

.1

0

0

0

0

.1

.3

.4

.2

.1

0

Apr.

0.1

.1

.2

.2

.2

.1

0

0

.1

.4

.1

0

0

.2

0

0

0

0

0

0

0

.2

 .1

0

0

0

0

0

0

-

Seccndfcct-days

423.0

1,042.5

184 1

0

1,011.6

May

0

0

0

0

0

0

0

0

.7

.3

0

0

0

0

0

0

0

0

0

0

0

.1

.4

.2

0

.1

0

0

0

0

0

Maximum

0

117

117

8 3

0

117

June

0o-

.1

0

0

0

0

.1

.2

0

0

0

.1

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

-

Minimum

0

.2

0

0

0

July Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

Mean

13.6

2.86

5 94

0

2.77

Sept.

Runoff in 

acre-feet

0

839

2,070

1 8

0

2,010

a No gage-height record; discharge computed on basis of 7 discharge measurements, an observation 

of no flov, probable discharge recession curves, interpolation, and records for Santiago Creek at 

Santa Ana.

f Computed on basis of partly estimated gage-height record.
60 SANTA ANA RIVER BASIN

Southern California Edison Co.'s canal near Mentone, Calif. 

(Previously published in conjunction with Greenspot pipe line near Mentone, Calif.)

Location.- Rat.pr} electrical output of Southern California Edison Co.'s Santa Aria River 

No. 3 olant (formerly called Mentone Power plant), lat. 34°06'20", long. 117°0o'5b" 

in SW-jfaec. 4, T. IS., K. 2 W., 3 miles northeast of Mentone.

Records available.- July 1896 to September 1898 (monthly discharge only), March 1901 to 

May J.903 (fragmentary), January 1904 to September 1947.

Average discharge.- 43 years (1904-47), 53.6 second-feet.

Extremes.- Maximum daily discharge during year, 76 second-feet Nov. 22; minimum daily, 

a second-feet Feb. 18 to Mar. 31.

1896-1947: Maximum daily discharge, 97 second-feet Mar. 16, 1905; no fiow 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 SW^SEi 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 -Janal 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 Canal (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; a discharge of 2 second-feet was reported as carried in 

canal for this purpose when plant was shut down Feb. 18 to'Mar. 31, 1947, and is included In the record.

Cooperation.- Records furnished by Southern California Edison Co.

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

Z\

22

23

24

25

26

27

28

29

30

31

Oct.

74

34

30

54

46

38

39

46

43

48

46

45

46

46

46

46

38

37

34

32

32

32

37

38

42

42

48

69

54

44

41

Nov.

39

35

32

30

34

38

37

45

33

26

30

34

40

51

58

51

45

43

44

53

50

76

30

37

73

72

72

70

68

67

-

Dec.

62

58

48

48

50

42

53

50

47

46

46

47

46

43

41

40

39

39

38

38

38

36

35

59

57

74

75

62

75

72

66

Jan.

65

64

56

54

53

52

50

50

48

47

45

42

44

43

41

37

38

36

35

36

37

36

34

36

34

34

32

26

38

37

35

Feb.

32

30

31

31

32

32

32

32

32

36

36

31

31

32

32

32

14

2

2

2

2

2

2

2

2

2

2

2

_

_

-

Month

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

Calendar year 1946 .............. ,-. ......

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

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

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

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

Water year 1946-47 ......................

Mar.

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

22~~

2

2

2

2

Apr.

10

36

36

38

36

36

36

36

36

47

38

36

36

36

35

35

34

34

34

34

34

39

37

36

36

37

37

37

36

34

-

Secondfoot-days

1 352

1,570

18,599

1,403

1,341

1,343

1,177

14,085

May

30

60

54

50

44

42

42

42

44

55

56

54

51

53

47

46

46

42

40

40

40

42

40

42

41

42

46

43

44

41

44

Maximum

75

76

36

60

50

50

76

June

42

41

47

48

48

48

48

46

50

49

49

49

47

42

42

39

43

42

42

45

47

47

46

46

42

42

42

42

40

40

-

Minimum

35

14

2

10

30

39

32

29

2

July

46

46

55

57

54

50

52

48

49

49

54

54

52

50

52

52

47

47

48

48

46

42

46

44

44

44

42

42

44

47

46

Aug.

47

46

47

47

45

45

59

36

56

52

45

37

44

46

47

47

45

40

37

42

46

38

39

38

38

42

45

39

38

38

32

Mean

50.6

51.0

42.4

19.6

35.4

45.3

44.7

39.2

38.6

Sept.

32

38

42

45

44

44

44

49

50

46

42

41

42

36

36

36

37

35

30

29

33

36

36

37

38

39

42

43

40

35

-

Runoff in 

acre-feet

3,110

36,890

1,090

2,110.

2,780

2,660

2,660

2,330

27,920

Mote.- Power plant shut down Feb. 17 to Apr. 1; 2 see.-ft. passed through canal for domestic use at 

plant.
SANTA ANA RIVER BASIN 61

Greenspot pipe line near Mentone, Calif. 

(Previously published in conjunction with Southern 

California Edison Co.'s-canal near Mentone, Calif.)

Location - Staff gage and sharp-crested weir, lat. 34°06'20", long. 117°05 I 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 1947. August 1897 to December 1901, 

April lyua to December 1904 (fragmentary), about 1 mile upstream near former point of 

diversion from Santa Ana River; records no't entirely comparable.

Average discharge.- 36 years (1911-47), 5.97 second-feet.

Extremes.- Maximum daily discharge during year, 9.0 second-feet for 33 days during October, 

November, and continuously from May 1 to Sept. 30; no flow several days in October, 

February, March.

1911-47: Maximum daily discharge, 11 second-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 1946 to September 1947

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.

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

6.7

0

0

Nov.

2.6

6.0

6.0

6.0

6.0

6.0

7.3

9.0

9.0

9.0

9.0

9.0

6,9

3.0

3.0

3.0

3.0

3.0

3.0

3.0

2.,3

3,0

1.4

1.5

3.0

3.0

3.0

3.0

3.0

3.0

-

Dec.

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

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

Jan.

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

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

4.8

Feb.

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

7.0

2.0

0

0

0

0

0

0

4.0

7.0

7.0

7.0

7.0

_

_

-

Month

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

Calendar year 1946 ......................

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

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

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

Water year 1946-47 ......................

Mar.

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

3.0

0

0

0

2.0

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

7.0

7.0

Apr.

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

7.0

.0

.0

.0

.0

.0 1 .0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

-

Secoudfoot-days

139.0

93.0

2,559.2

210 0

270.0

2,504.5

May

8.0

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

Maximum

9.0

3.0

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

1.4

3.0

0

9.0

o

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

9.0

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

Mean

4.63

3.00

7.01

5 21

9 00

9.00

6.86

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

276

184

5,080

536

4,970
63 SANTA ANA RIVER BASIN

Mill Creek near Mentone, Calif.

Location.- Water-stage recorder and concrete broad-crested weir, lat. 34°05'10", long. 

117-06'55", In SEtNW^ sec. 17, T. 1 S., R. 2 W., at Bear Valley pipe-line crossing, 

0.2 mile upstream from mouth, 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 1947.

Extremes.- Maximum discharge during year, 400 second-feet Nov. 33 (gage height, 4.55 

feet); no flow during several months.

1939-47: Maximum discharge, 1,500 second-feet Dec. 33, 1945, by slope-area 

method; no flow during several periods each year.

Remarks.- Records poor. Mill Creek power canal's 1, 2, and 3 divert above station.

Discharge-, in second-feet, water year October 194,6 to September 1947

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.

6

f7

0

fl

0

0

0 

0

0

0

0

0

0

5

5

0

0

0

0

0

0

0

0

0

0

0

0

14

a3

al

0

Nov.

0

0

1

0

0

0

0

f7

0

0

al

a2

12

flO

a2

0

0

0

0

f3

f4

0

150

f50

a5

0

0

0

0

0

-

Dec.

0

0

0

0

0

0

0 

0

0

0

0

f.l f.l

0

0

0

0

0

0

0

0

0

0

0

12

43

53

35

13

5

fO

Jan. Feb.

 o.i

> .05

.04

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

I 0.03

.1

.1

f.3

> a. 05

j

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

Secondfoot-days

42

247

161.2

630.6

0

1 82

!76

.4

0

0

0

1.3

0

454.48

Peak discharge.- Nov. 8 (7:50 a.m.) 40 aec.-ft.} Nov.

p.m.) 400 sec. -ft.; Dec. 25 (5:30 p.m.) 65 sec. -ft. 5 Dec

100 sec. -ft.

a Ho gage-height record; discharge estimated, or compv

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

.1

.1.1.1

0

0

0

0

0

0

0

0

0

0

-

May

Maximum

14

150

53

150

0

.3

.1

0

0

0

1.2

0

150

June

Minimum

C

C

c

C

c

c

c

c

c

c

c

c

c

July Aug.

0

0

0

0

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

Sept.

u_._ Runoff in Mean acre-feet

) 1.4 83

) 8.2 490

) 5.20 320

) 1.73 1,2ED

) 0 0

.065 3.6

) .025 1.5

) .01 .8

) 0 0

0 0

) 0 0

) .04 2.6

) 0 0

) 1.25 902

13 (1:15 p.m.) 50 sec. -ft.; Nov. 23 (4:30

. 26 (6 a.m.) 110 see. -ft.; Dec. 27 (4 p.m.)

ited on basis of normal recession.

f Computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN 63

Mill Creek power canals 2 ^nd 3 near Craftonville, Calif.

Location.- Weir in tailrace of Southern California Edison Co.'s power plant, lat. 

34°05'10", long. 117°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 1947.

Average discharge.- 28 years, 21.9 second-feet.

Extremes.- Maximum daily discharge during year, 31 second-feet Dec. 27-29; no flow

1919-47: Maximum daily discharge, 36 second-feet Nov. 19, 1923, June 7, 1924; 

no flow at tiroes during 1923, 1937-40, 1943, 1945-47.

Remarks.- Discharge computed from weir records at tailrace of power plant. Mill Creek 

power canal 2 diverts from Mill Creek in sec. 8, T. 1 S., R. 1 W.; power canal 3 

diverts in sec. 13, T. 1 S., R. 1 W., 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 by Southern California Edison Co.

Discharge, in second-feet, water year Oeteber 1946 to September 1947

Day

1

Z

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.

20

14

20

21

21

21

20

19

19

18

20

20

20

20

20

21

21

20

20

20

20

20

20

20

20

20

21

17

24

21

20

Ncv

20

19

20

19

19

19

19

17

20

16

21

20

23

19

21

22

22

21

2118

21

2214

0

19

22

23

22

22

23

-

Dec.

24

23

23

23

23

25

25

24

24

24

24

23

24

24

25

25

25

25

25

25

24

25

24

23

15

14

31

31

31

30

28

Jan.

27

27

26

50

50

29

29

29

29

29

' 29

29

29

29

29

29

29

29

29

29

26

29

29

29

29

29

26

50

27

27

29

Feb.

29

26

26

27

26

28

26

27

27

30

29

26

12

26

26

27

28

27

27

27

27

26

25

25

25

25

26

25

-

-

Month

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

Calendar year 1SI46 ......................

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

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

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

Water year 1946-47 ......................

Mar.

25

24

24

13

23

24

22

24

23

23

23

23

23

23

23

25

26

26

26

26

26

26

26

26

25

25

26

27

23

27

26

Apr.

26

26

26

26

26

24

25

25

25

26

25

25

25

25

25

25

25

26

25

26

26

28

26

26

26

26

26

26

25

25

-

Seccndfcct-days

759

6,774.4

483

6,163

May

27

23

24

24

24

24

24

25

24

26

26

25

24

25

25

24

26

26

23

24

23

24

23

23

22

23

23

23

22

22

22

Maximum

*>2

31

32

SO

25

16

31

, June

22

22

23

23

23

23

22

21

22

22

22

21

21

21

20

20

21

22

21

21

21

21

21

21

22

22

21

21

21

21

Minimum

14

c

J_*

11

c

July

21

20

20

20

20

19

19

19

19

19

19

16

19

19

16

16

17

16

16

18

16

17

18

16

16

17

17

17

17

17

16

Aug.

17

17

17

17

17

16

20

23

22

24

22

22

21

21

21

21

21

21

20

20

20

20

19

20

19

16

19

19

19

16

16

Mean

24.5

24.0

25 6

24 O

21 5

16.1

22.4

Sept.

17

16

17

14

17

17

17

17

17

17

17

16

16

15

16

16

16

17

17

16

16

16

16

16

16

15

14

16

15

13

Runoff in 

acre-feet

1,510

17,390

1 20O

958

16,200
64 SANTA ANA RIVER BASIN

Mill Creek power canal 1 ne_ar Craftonville, Calif.

Location.- Water-stage recorder and weir control, lat. 34°05'10", long. 117°02 ! 25", in 

H&t sec. 13, T. 1 S., R. 2 W., 0.9 mile downstream from point of diversion from Mill 

Creek and 5 miles northeast of Craftonville.

Records available.- January 1919 to September 1947. 

Average discharge.- 28 years, 2.96 second-feet.

Extremes.- Maximum daily discharge during year, 5.2 seco~nd-feet Jan. 30; no flow several 

days in many months.

1919-47: Maximum daily discharge, 29 second-feet Apr. 21, 22, 1932; no flow for 

several days of most yea^S.

Remarks.- Records good. Discharge determined by weir formula. This canal diverts from 

Mill Creek in NE£ 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 power canal 1. After passing 

through Mill Creek powerhouse 1, entire flow is used for irrigation and domestic 

supply.

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.

0

0

0

0

o

0

0

0

.1

.4

.7

.5

.2

0

0

0

0

o

0

0

o

0

0

0

.2

.4

.6

.1

.1

.1

0

Nov.

0

0

o

.3

.2

0

.2

.1

0

.5

.7

0

0

0

0

.2

.7

.7

.7

.4

1.3

2.6

.9

.1

.1

.1

0

0

0

0-

Dec.

0

1.5

1.9

2.2

2.5

1.6

1.9

3.1

3.3

3.3

3.3

3.3

3.1

3.1

3.1

3.1

3.0

3.0

3.1

3.1

3.0

3.0

3.0

3.7

3.1

 .1

O

o

3.2

.4

0

Jan.

0

0

0

2.2

3.1

3.1

3.0

2.8

2.8

2.8

2.8

3.0

3.1

3.3

3.3

3.3

3.3

3.6

4.0

4.0

4.0

4.1

4.3

4.3

4.5

4.5

4.5

2.9

4.0

5.2

4.0

Feb.

3.8

3.8

3.6

3.3

3.3

3.1

3.1

3.3

2.8

2.6

3.0

3.0

1.2

0

O

0

0

0

0

0

0

o

0

o

0

0

0

0

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

July. ....................................'..

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

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

Water year 1946-47 ......................

Mar.

0

0

0

1.9

.1

.2

0

0

0

0

0

0

1.6

2.8

2.6

2.8

2.8

3.1

4.0

4.5

4.9

4.1

4.1

3.8

3.6

3.4

4.0

4.9

4.1

4.1

4.0

Apr.

4.0

4.1

4.3

4.5

4.7

4.3

4.0

3.6

3.4

3.4

3.3

3.0

2.6

3.0

2.8

2.8

2.8

3.0

3.0

3.0

3.3

3.4

3.3

3.1

3.4

3.6

3.4

3.1

3.0

2.6

Secondfoot-days

3.4

72.0

81?. 6

39 . 9

71.4

101.8

86 .6

39 *0

9.7

7.3

4.0

544.7

May

2.5

2.5

2.5

2.5

2.6

2.6

2.6

2.8

2.8

3.1

3.0

3.0

3.0

3.3

3.1

3.0

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.6

2.6

3.1

2.8

2.6

2.8

2.8

Maximum

0.7

3^7

7.5

5.2

3.8

4.9

4.7

3.3

2.6

. 6

.6

.2

5.2

June

2.6

2.5

2.1

1.9

1.9

1.7

1.4

1.4

1.4

1.3

1.3

1.2

1.0

1.0

.9

.9

1.2

1.2

1.2

1.3

1.3

1.2

1.0

1.0

1.0

.9

.9

.9

.7

.7

Minimum

0

0

0

0

0

0

0

2.6

2.5

.7

.1

0

0

0

July

0.6

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.2

.2

.2

.2

.3

Aug.

0.3

.2

.2

.2

.2

.2

.2

0

.2

.6

.5

.5

.6

.3

.2

.2

.2

.2

.2

.3

.2

.2

.2

.1

.1

.2

.2

.2

.2

.2

.1

Mean

0.11

2.52

2.23

3.22

1.42

2.30

z'.79

1.30

.31

.24

.13

1.49

Sept.

0.1

.1

.1

.1

.2

.1

.1

.1

.2

.1

.1

.1

0

0

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

Runoff in 

acre-feet

6.7

19

143

1,610

198

79

142

202

172

77

19

14

7.9

1,080
SANTA ANA RIVER BASIN 65

Plunge Creek near East Highlands, Calif.

Location.- Water-stage recorder and broad-chested weir, lat. 34°07'10", long. 117°08'30", 

TnTEpE^ ses. 1, T. 1 S., R. 3 W., at mouth of canyon at crossing of North Fork ditch 

siphon, 2 miles northeast of East Highlands. Altitude of gage, about 1,625 feet.

Drainage area.- lo.9 square miles.

Records available.- January 1919 to September 1947.

Average discharge.- 28 years, 6.77 second-feet.

Extremes.- Maximum discharge during year, 500 second-feet Nov. 20 (gage height, 1.70 

feet); no flow during several months.

1919-47: Maximum nicchar^o, 5,340 second-feet Mar. 2, 1938, by slope-area method; 

no flow for long periods each year.

Remarks.- Records fair. Diversions above station for irrigation.

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.

0

o

0

o

0

0

0

0

0

0

o

0

o

0

0

0

0

o

0

0

o

0

o

o

0

o

0

3.4

r.4

1.0

.2

Nov.

aO

aO

aO

aO

aO

aO

a. 5

9.5

3.2

1.5

.6

1.6

44

24

13

7.4

5.1

4.2

4.0

222

85

22

180

74

20

15

11

9.6

8.6

7.0

-

Dec.

5.8

5.1

3.8

3.2

2.9

6.3

6.5

3.8

3.4

3.2

3.4

3.8

3.6

3.4

2.7

2.8

3.0

2.6

1.1

1.3

3 .6

1.5

1.6

1.8

3.5

19

134

53

15

9.6

8.2

Jan.

7.4

7.O

6.7

6.4

6.1

5.8

5.3

5.1

5.1

4.8

4.8

4.6

4.6

4.6

4.2

3.8

3.4

3.4

3.2

3.0

2.5

1.9

1.8

1.7

1.2

.9

.8

9.0

6.7

4.4

3.8

Feb.

3.4

3.2

3.2

3.0

2.9

2.9

2.2

1.7

2.9

6.2

4.4

4.0

3.8

3.6

3.6

3.6

4.0

5.1

3.6

2.4

2.3

2.1

1.9

1.1

.8

.8

1.2

1.1

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

1.4

1.5

.7

2.3

1.1

1.0

.9

1.0

1.1

1.0

.7

.6

.4

.3

.2

.2

.1

> .02

.3

.2

.1

.1

Apr.

> 0.01

-

Seoond 

foot-days

8.0

772.8

32O.5

1,761.2

134.0

81. 0

15.40

.30

.31

O

0

0

0

1,332.31

May

> 0.01

Maximum

222'3.4

134

222

9.0

6.2

2 3

^

_

0

0

0

0

222

June

Minimum

0

0

1.1

0

.8

.8

_

_

0

0

0

0

o

July Aug.

Mean

0.26

25.8

10.3

4.83

4.32

2.89

.497

.01

.01

0

0

0

0

3.65

Sept.

Runoff in 

acre-feet

16

1,530

636

3,490

266

161

31

.6

.6

0

0

0

0

2,640

Peak discharge.- Nov. 13 (5 p.m.) 20O see.-ft.; Nov. 2O (2:15 p.m.) 500 sec.-ft.; Nov. 23 

(3:30 p.m.) 450 sec.-ft.; Dec. 27 (6 p.m.) 350 see.-ft.

a Gage-height record Incomplete; discharge computed on basis of weather records and 1 discharge 

measurement.

Note.- Dally discharge less than O.05 sec.-ft. Mar. 18-27. Slight flow during most of April and 

May; dally discharge not computed; monthly discharge computed on basis of complete gage-height 

record and 3 field estimates of very small discharge.
66 SANTA ANA RIVER BASIN

San Timoteo Creek near Redlands, Calif.

Location.- Water-stage recorder and concrete control, lat. 34°01"55", long. 117°12'30", 

in NW£NW£ sec. 4, T. 2 S., R. 3-W., 2 miles southwest of Redlands. Altitude of gage, 

about 1,260 feet.

Drainage area.- 123 square miles.

Records available.- October 1926 to September 1947.

Average discharge.- 21 years, 1.93 second-feet.

Extremes.- Maximum discharge during year, 620 second-feet Nov. 23 (gage height, 2.95 

feet); no flow during most of year.

1926-47: 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 1946 tc 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.

0 1

0

0

1.6

.1

.1

.1

.2

.1

.1

.1

0

o

0

0

0 ,

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

0

0

0

0

0

0

0

f9

al

0

0

o

f60

f25

al

0

O

0

0

.1

0

0

flOO

a5

al

0

0

0

0

0

-

Dec.

0

0

0

0

0

fl.O

0

0

o

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

f!3

al5

a2

0

0

0

Jan. Feb.

Month

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

Calendar year 1946 ......................

February

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

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

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

July *

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

Water year 1946-47 ......................

Mar. Apr.

0

0

0

0

o

0

0

0

o

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

f .2

0

0

0

0

0

-

Secondfoot-days

31.0

247.6

0

237.6

May

0

0

0

0

0

0

0

0

0

f.l

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

100

15

100

0

100

June

Minimum

0

0

0

0

July Aug.

0

0

0

0

0

0

1.0

.7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

1.00

.68

0

.65

Sept.

Runoff in 

ao re-feet

61

491

3 4

0

471

Peak discharge.- Nov. 8 (11 a.m.) 120 sec.-ft.; Nov..13 (3:30 p.m.) 460 sec.-ft.; Nov. 14 

(10:30 a.m.) 265 sec.-ft.; Nov. 23 (3:30 p.m.) 620 sec.-ft.; Dec. 26 (9:15 a.m.) 9O sec.-ft. 

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 Bernardino 

urant,- at Colton Avenue Bridge, 0.4 mile upstream from mouth and 1.2 miles east of 

Colton, San Bernardino County. Altitude of gage, about 970 feet.

Records available.- August 1920 to September 1947.

Average discharge.- 27 years, 54.2 second-feet. Average combined discharge of Warm 

ureeK ana weeks & Daley Canal: 27 years, 65.1 second-feet.

Extremes.- Maximum discharge during year, 1,350 second-feet Nov. 20 (gage' height, 5.35 

feet ); maximum gage height, 6.40 feet Nov. 13; minimum daily discharge, 26 secondfeet Sept. 14.

1920-47: 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 Creek, 35,000 second-feet Mar. 2, 1938.

Remarks.- Records fair. See p. 79 for records of Meeks & Daley Canal near Colton,

whicn diverts above station, and p. 68 for records of combined flow of canal and Warm 

Creek. City of San Bernardino sewage disposal plant discharged 7,060 acre-feet into 

Warm Creek above station during year. In seasons of high water table, there is flow 

in a depression about 500 feet east of and paralleling Warm Creek; based on 13 discharge measurements (see p. 440), the amount of runoff during year is estimated to 

have been 500 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 secondfeet), 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).

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.

46

46

45

46

45

43

45

44

44

44

43

43

42

44

44

46

48

49

51

49

50

46

47

46

47

52

63

64

49

47

46

Nov.

45

45

43

44

13

13

14

115

66

69

38

Ii2

356

225

100

36

79

30

79

320

a!25

alOO

175

a!2O

110

104

101

98

96

96

-

Dec.

96

96

95

95

95

 96

92

88

89

89

87

84

87

84

82

8O

80

76

75

74

75

73

76

8O

108

370

230

160

a!25

al05

allO

Jan.-

aloo

alOO

100

99

97

99

97

91

95

99

95

93

91

88

83

78

76

80

81

81

76

76

76

73

66

61

64

84

9O

88

91

Month

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

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

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

Calendar year 1946 ............

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

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

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

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

Kfav nay ..............................

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

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

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

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

Water year 1946-47 ............

Feb.

81 '

80

83

80

78

78

68

60

70

80

74

76

74

71

60

58

71

74

69

69

65

64

58

64

64

57

60

62

_

-

Secondfoot-days

1,464

3J252

24,475

2» 668

1,948

1,765

Ij 692

1,744

1.37O

1,093

1,024 

958

22,215

Mar.

64

62

70

80

73

62

58

64

6O

60

62

57

55

51

50

48

51

53

58

60

64

53

50

51

50

46

48

58

51

46

50

Apr.

53

53

60

58

46

45

45

48

53

53

50

50

50

55

57

53

55

55

57

57

58

60

64

62

76

62

62

65

65

65

Maximum

64

356

370

370

83

80 

76

68 

51

41 

35

37

370

Hay

62

58

55

55

55

55

57

60

6O

62

62

64

64

68

62

60

58

55

55

55

53

53

53

55

50

48

51

51

50

48

50

Minimum

42

43

73

36

61

57

46

45

48

41

32

30

26

26

June

50

SO

50

51

50

50

48

45

48

48

48

46

46

45

43

45

43

43

43

46

45

43

45

43

41

41

45

43

43

43

Mean

47.2

108

105

67.1

86 . 1

69 .6

eg q

56 !4

56.3

45.7

35.3

33.0

31.9

60.9

July

41

40

4O

38

38

36

36

36

35

35

35

35

33

36

36

36

36

36

35

35

35

34

33

33

35

53

32

33

32

32

33

Aug.

32

33

32

33

33

32

33

33

33

33

33

32

33

32

33

32

32

35

35

33

35

35

33

32

33

35

33

33

35

33

30

Runoff 

in 

acre-feet

2,900

6,420

6,450

48,560

5,290

3 j86O

3,500

3,360

3,460

2,72O

2,170

2,03O

1,900

44,060

Sept.

30

32

30

30

30

30

27

30

3O

32

30

29

27.

26

29

30

30

35

35

33

32

36

35

35

36

35

36

36

37

35

Inflow 

in 

acre-feet t

580

558

585

6,830

628

565

592

550

579

614

631

593

584

7,060

Peak discharge.- Nov. 8 (7:30 a.m.) 35O sec.-ft.; Nov. 13 (2:30 p.m.) 1.2OO see.-ft.; Nov. 14 

(8 a.m.) 530 sec.-ft.5 Nov. 20 (2:15 p.m.) 1,350 see.-ft.; Nov. 23 (12 m.) 3OO see.-ft.; Dec. 26 

(6:15 a.m.) 1,100 sec.-ft.

t Discharge from sewage-disposal plant of city of San Bernardino, included in figures given in 

preceding columns. Records furnished by that city.

a No" gage-height record; discharge computed on basis of records at related stations.

Note.- No gage-height record except range in stage July 16 to Aug. 15; discharge computed on 

basis of 5 discharge measurements and records of diversions and additions downstream.
68 SANTA ANA RIVER BASIN

Combined discharge, In second-feet, of Warm Creek and Meeks & Daley Canal near Colton, Calif., 

water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

10

11

12

13

15

16

17

18

20

21

22

24

25

26

27

28

30

Oct.

65

65

65

66

65

62

65

64

63

63

62

62

61

64

66

68

69

68

69

65

66

65

66

72

84

83

67

Nov.

64

64

62

63

62

62

64

125

70

73

91

144

357

226

100

86

79

80

79

320

125

100

175

120

110

104

101

98

96

96

-

Dec.

96

96

95

95

95

96

92

88

89

89

87

84

87

84

82

80

80

76

75

74

75

73

76

80

108

370

230

160

125

105

110

Jan.

100

100

100

99

97

99

97

91

95

99

95

93

91

88

83

78

76

81

87

92

88

88

88

85

78

73

76

93

94

92

95

Feb.

85

84

87

84

83

83

73

65

75

84

78

79

82

83

70

70

86

86

80

80

75

75

68

77

79

72

75

77

_

-

-

Month

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

Calendar year 1946 ......................

March...... ........:.......................

Hay

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

Water year 1946-47 ......................

Mar.

79

77

85

94

86

74

71

78

74

74

76

70

68

64

63

61

63

65

74

76

80

68

64

65

65

62

65

74

67

63

67

Apr.

70

70

76

72

62

61

62

65

70

70

67

67

68

73

75

70

72

72

74

74

75

77

81

79

94

79

79

82

82

82

Secondfoot-days

3,252

28,862

2 200

1,534

27 , 209

May

78

75

73

73

73

73

75

78

78

80

80

82

82

86

79

78

76

72

72

72

71

71

72

72

68

68

71

71

70

68

69

Maximum

370

370

94

56

370

June

69

69

69

70

69

69

67

65

67

67

67

65

65

64

62

64

62

62

62

65

64

62

64

62

61

61

65

62

62

62

-

Minimum

73

55

73

45

45

July

60

59

59

57

57

55

55

55

54

54

54

54

52

55

55

55

55

55

54

54

54

53

52

52

54

52

51

52

51

51

52

Aug.

51

53

52

53

52

51

52

53

53

53

53

51

52

51

53

52

52

54

54

53

55

55

52

51

52

55

53

53

54

52

49

Mean

105

79.1

73 3

54 3

52 5

51.1

74.5

Sept.

49

51

49

49

49

49

46

50

50

52

49

48

46

45

48

49

50

55

54

52

51

55

54

54

55

54

55

55

56

55

Runoff in 

acre-feet

4,100

6,740

6,450

57,260

4,350

4,360

3,860

3,040

53,970 -
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°lfa'55",. 

in t>Jj£ sec. 11, T. 1 N., R. 4 W., upstream from Del Rosa Water Co.'s lower diversion 

dam, 0.5 mile south of Arrowhead Springs. Altitude of gage, about 1,660 feet.

Drainage area.- 8.6 square miles.

Records available.- December 1919 to September 1947.

Average discharge.- 27 years (1920-47), 5.10 second-feet.

Extremes.- Maximum discharge during year, 162 second-feet Nov. 20 (gage height, 3.37 feet); 

minimum dally, 0.4 second-foot several days In July.

1919-47: Maximum discharge,_3,360 second-feet Mar. 2, 1938, by rainfall-runoff 

studies; practically no flow at times during 1929, 1931-35.

Remarks.- Records fair. One small diversion above station for domestic supply.

Discharge, in second-feet, water year October 1946 to September 1947

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.

5.6

1.9

1.4

1.3

1.3

1.3

1.3

1.2

1.0

1.2

.9

.8

.9

.9

1.2

2.0

1.4

1.3

1.2

1.0

1.0

.9

1.0

.8

.9

.9

4.4

10

5.2

3.1

2.8

Nov.

2.3

2.1

1.8

1.7

1.7

1.7

2.2

3.8

2.1

1.8

2.7

8.0

23

1!)

9.5

6.1

4.6

3.9

3.6

54

24

14

39

22

14

11

8.8

7.6

7.0

6.3

-

Dec.

5.9

5.4

4.8

4.4

4.2

5.2

4.6

a4.0

a3.3

a3.1

3.0

3.1

6.0

23

40

20

14

alZ

alO

Jan.

5.0

4.8

4.6

4.6

5.0

5.2

5.0

4.8

4.6

4.6

4.4

4.2

4.1

3.9

3.8

a3,7

a3.6

a3.,5

a3,5

a4..0

alO

a6.,5

5., 7

5.4

Feb.

5.2

4.8

4.6

4.4

4.4

4.6

4.4

4.8

6.0

A. 6

4.1

4.1

4.1

3.9

3.8

4.1

6.5

7.3

6.1

5.4

5.0

4.4

4.1

3.8

3.6

3.9

4.2

4.1

_

_

-

Month

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

Calendar year 1946 ......................

Mas........................................

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

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

Water year 1946-47 ......................

Mar.

4.1

3.9

4.3

5.7

4.6

4.2

3.9

4.2

4.1

4.1

3.6

3.4

3.3

3.1

3.1

3.3

3.1

3.3

3.9

4.2

4.2

4.2

4.1

3.9

4.0

3.6

4.0

7.6

5.2

4.6

4.6

Apr.

4.4

4.4

4.6

4.4

4.4

4.2

3.9

3.8

3.8

3.6

3.8

3.1

3.0

2.5

2.6

2.5

2.6

3.0

2.8

3.1

3.6

4.1

3.6

3.6

4.2

3.6

3.4

3.3

3.1

2.8

-

Secondfoot days

308.3

219.5

1,379.6

 JA Q

52 0

24.7

1,302.0

May

2.3

2.1

1.9

1.9

1.9

2.1

2.2

2.3

2.5

2.5

3.0

2.6

2.5

3.1

3.1

2.8

2.5

2.3

2.2

2.1

2.3

2.5

2.3

2.2

2.1

2.1

3.6

2.8

2. 1

2.3

2.5

Maximum

40

54

1.5

54

June

2.3

2.2

2.2

2.1

2.3

2.1

1.9

2.1

2.2

1.9

1.9

1.4

1.2

1.4

1.6

1.2

1.1

1.1

1.2

2.1

2.3

1.8

1.5

1.6

1.8

1.4

1.6

1.6

1.6

1.3

-

Minimum

.3

2 5

1 9

.6

.4

Peak discharge.- Nov. 13 (12:45 P.m.) 84 sec. -ft. i Nov. 20 (11:30 a.m.) 162

July

1.2

1.1

1.0

.8

.8

1.2

1.1

1.0

1.0

1.1

1.2

1.2

1.3

1.1

.9

.8

.8

.7

.5

.7

.7

.6

.6

.6

.6

.4

.8

.6

.4

.4

.4

Aug.

0.5

.5

.6

.6

.6

.6

.6

.6

.7

.9

.8

.8

.7

.7

.6

.6

.7

.6

.5

.5

.6

.8

.7

.7

.5

.7

.8

.7

.8

.7

.7

Mean

7.08

3.78

.82

3.57

Sept.

0.6

.6

.7

.6

.6

.7

.8

.8

1.1

1.0

.8

.8

.7

.9

.8

.8

1.1

1.5

1.2

1.0

1.0

.8

.8

.7

.7

.6

.6

.8

.8

.8

-

Runoff in 

acre-feet

1 1 Q

435

2,740

49

2,580

sec. -ft.; Nov. 23

. ... .._.._....) 65 sec.-ft.

a Ho gage-height record; discharge computed on tasi's of 5 discharge measurements, weather records, 

and interpolation.

854211 O - 49 - 6
70 SANTA ANA RIVER BASIN

Waterman Canyon Creek near Arrowhead Springs, Calif.

Location,- Water-stage recorder and broad-crested weir, lat. 34°11'35", long. 117<> 16'35" 

IfTSWfSW^ sec. 2, T. 1N..R. 4W..1 mile northwest of Arrowhead Springs. Altitude 

of gage, about 2,125 feet.

Drainage area.- 4.55 square miles.

Records available.- November 1911 to October 1914, December 1919 to September 1947.

Average discharge.- 29 years (1912-14, 1920-47), 3.07 second-feet.

Extremes.- Maximum discharge during year, 185 second-feet Nov. 20 (gage height, 3.40 

reet); minimum daily, 0.1 second-foot Sept. 1-6.

1920-47: Maximum discharge, 2,350 second-feet Mar. 2, 1938, based on rainfallrunoff studies; no flow at times during summers of 1924-26, 1928, 1929, 1931, 1934.

Remarks.- Records fair. One small diversion for domestic use above station.

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

??

?J5

?4

25

26

27

?fl

29

30

31

Oct.

4.6

1.0

.7

.6

.6

.5

.4

.4

.4

.4

.3

.3

.3

.4

.4

.8

.6

.5

.4

.4

.4

.4

.4

.3

.3

.4

3.1

5.9

2.4

1.4

1.0

Nov.

1.0

.7

.8

.8

.8

.7

1.1

 3.4

1.3

1.0

2.7

7.1

14

10

6.2

4.4

3.3

3.1

3.0

52

16

12

21

13

10

8.3

7.8

7.5

7.2

6.6

-

Dec.

6.2

6.0

5.6

5.2

5.0

5.8

5.2

4.9

4.6

4.4

4.2

4.0

3.8

3.6

3.4

3.3

3.2

3.1

3.1

3.0

3.0

3.0

3.0

3.1

5.7

11

14

8.9

7.2

6.6

6.4

Jan.

6.2

6.0

5.8

5.6

5.4

5.2

5.0

4.9

4.7

4.5

4.4

4.4

4.5

4.2

4.1

4.0

3.9

3.8

3.7

3.6

3.5

3.4

3.3

3.2

3.1

3.0

3.0

6.8

4.9

4.2

3.9

Feb.

3.8

3.6

3.4

3.3

3.2

3.1

3.1

3.0

3.7

3.6

3.2

3.1

3.0

3.0

3.0

3.0

4.5

3.3

3.0

2.8

2.8

2.8

2.7

2.7

2.7

2.7

2.8

2.8

_

_

-

Month

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

Calendar year 1946 ......................

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

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

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

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

Water year 1946-47 ......................

Mar.

2.8

2.7

2.8

2.7

2.6

2.5

2.5

2.5

2.5

2.4

2.3

2.2

2.2

2.1

2.1

2.1

2.1

2.2

2.4

2.7

2.7

2.6

2.6

2.4

2.3

2.2

2.5

5.9

3.3

3.0

2.8

Apr.

2.8

2.8

2.9

2.S

2.7

2.6

2.4

2.3

2.3

2.3

2.2

2.0

1.9

1.9

1.8

1.8

1.8

1.9

2.0

2.1

2.5

2.7

2.5

2.4

2.9

2.3

2.2

2.0

1.9

1.6

Secondfoot-days

30 0

159.5

875.1

136 2

11 6

9.2

913.8

Hay

1.5

1.5

1.4

1.4

1.3

1.5

1.5

1.6

1.6

1.7

1.8

1.7

1.6

1.8

1.8

1.7

1.6

1.6

1.6

1.6

1.7

1.6

1.7

1.6

1.5

1.5

2.3

1.8

1.6

1.7

1.7

Maximum

5 9

52

14

52

6 8

5 9

2 3

.8

52

June

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.4

1.1

1.1

1.1

1.0

.9

.9

1.0

1.0

1.4

1.3

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.8

-

Minimum

3.0

.1

0

.1

.1

July

0.7

.6

.6

.6

.6

.6

.7

.6

.6

.6

.7

.7

.7

.7

.7

.6

.6

.5

.4

.4

.4

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

Aug.

0.4

.4

.3

.3

.3

.2

.3

.4

.4

.5

.4

.3

.3

.2

.2

.3

.3

.3

.3

.4

.4

.4

.5

.5

.5

.6

.7

.6

.4

.3

.2

Mean

7 CO

5.15

2.40

2 28

.31

2.50

Sept.

0.1.1.1.1

.1

.1

.2

.3

.4

.5

.4

.2

.2

.2

.2

.2

.6

.8

.5

.4

.4

.4

.4

.3

.3

.3

.3

.3

.4

.4

Runoff in 

ao re-feet

450

316

1,740

23

18

1,810

Peak discharge.- Oct. 1 (11 a.m.) 25 sec. -ft.; Nov. 13 (12:30 D.m.) 47 see. -ft. i Nov. 20 (10:45
SANTA ANA RIVER BASIN 

City Creek near Highland, Calif.

Location.- Water-stage recorder, lat. 34°08'35", long. 117°11'25", in SW£nw£ sec. 27, 

T. IN., R. 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 1947.

Average discharge.- 28 years, 9.31 second-feet. Average combined discharge of City 

Creek and CiEy Creek Water Co.'s canal, 23 years (1924-47), 11.2 second-feet.

Extremes.- Maximum discharge during year, 285 second-feet Nov. 13 (gage height, 3.03 

feet); no flow Oct. 3-12.

1919-47: Maximum discharge, 6,900 second-feet Mar. 2, 1938, by slope-area 

method; no flow for several months of many years.

1924-47: Minimum combined daily discharge of City Creek and canal, 0.1 secondfoot several days in 1929, 1931, 1934-37.

Remarks.- Records fair. For records of combined discharge of City Creek and City Creel 

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 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.9

1.0

O

0

0

0

0

O

O

O

O

O

.1

V

I .05

1

2.7

24

14

5.8

3.2

Nor.

1.5

.8

.1

.3

.3

.3

.4

15

8.0

6.5

8.0

18

98

28

18

14

10

7.0

127

68

31

80

60

35

26

20

17

14

12

-

Dec.

11

9.3

8.8

8.4

7.6

10

11

9.7

8.0

6.8

6.5

6.1

5.8

5.4

4.5

4.0

3.7

3.7

3.7

6.0

7.2

6.5

7.2

10

49

118

69

43

32

29

Jan.

25

21

19

18

17

14

12

11

11

9.7

9.7

9.3

8.8

10

10

10

9.3

8.8

8.4

8.0

7.6

8.0

8.0

8.0

8.0

8.4

25

19

13

8.8

Feb.

8.8

8.4

7.2

5.8

5.4

5.1

4.3

4.O

4.8

11

7.2

6.5

6.1

2.9

1.8

2.7

3.8

2.4

2.6

2.8

2.4

2.2

2.2

2.2

2.4

3.0

2.8

_

_

-

Month

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

Calendar year 1946 ......................

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

kf««

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

Water year 1946-47 ......................

Mar.

2.6

2.6

3.0

7.8

9.7

6.8

5.4

5.1

5.1

3.0

1.8

1.5

1.5

1.5

1.4

1.1

1.1

1.2

1.2

1.2

1.2

1.4

1.2

1.0

1.0

1.2

3.0

2.0

1.7

1.7

Apr.

1.5

1.5

1.7

1.8

1.8

2.0

1.7

1.1

1.1

1.0

.8

.6

.5

.2

.3

.3

.4

.5

.5

.9

1.0

.5

.5

.6

.3

.3

.3

.3

.3

Seocndfcot-days

56.25

786.2

516.3

2, 555. OS

81.4

.47

.45

1,977.67

May

0.3

.3

.3

.2

.2

.4

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.3

.1

Maximum

24

127

118

127

9.7

2.0

.1

-

127

June

0.1

.1

.2

.2

.3

.3

.3

.3

.2

.1

I

1

.8

.3

.2

'I ;

 }.1

.1.1.1.1i1

Minimum

0

.1

3.7

0

7.6

1.8

1.0

.2

.1

_

-

O

July

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.03

Aug.

' O.O1

Mean

1.81

26.2

16.7

7.0

12.0

4.52

2.63

.82

.16

.02

.02

5.42

Sept.

> 0.01

Runoff in 

acre-feet

112

1,560

1,020

5.O60

741

251

161

49

9.9

11

3.0

.9

.9

3,920

Peak discharge.- Noy. 13 (4:20 p.m.) 285 sec.-ft.; Noy. 20 (1:45 p.m.) 265 seo.-ft.; Nov. 23 

(2 p.m.J 180 sec.r-ft.; Dec. 26 (7 a.m.) 115 sec.-ft.; Dec. 27 (6 p.m.) 175 seo.-ft.

Note.- No flow Oct. 3-12; only slight flow during part at each day Oct. 13-22, 24-26, July 12 to 

Sept. 30.
SANTA ANA RIVER BASIN

Combined discharge, in second-feet, of City Creek and canal near Highland, Calif., water year 

October 1945 to September 1947

Day

1

2

3

4

b

6

7

8

9

1U

11

12

13

14

Ib

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7.4

3.0

2.0

1.7

1.7

1.6

1.4

1.3

1.2

1.1

1.0

1.0

1.1

1.0

1.4

2.6

2.4

2.2

2.1

2.1

1.9

2.0

2.0

1.8

1.8

1.9

4.1

27

16

7.3

5.5

Nov.

4.9

4.6

4.0

3.8

3.7

3.7

3.7

15

8.1

6.5

8.1

18

99

62

28

13

14

12

10

130

68

32

81

60

36

28

22

19

16

15

-

Dec.

14

12

12

11

10

12

11

10

9.7

5.8

8.4

8.1

7.8

7.4

7.4

6.9

6.9

6.6

6.6

6.6

7.2

7.4

7.8

9.2

12

51

120

70

43

32

30

Jan.

26

22

20

19

18

16

16

15

15

13

13

13

12

12

11

11

11

10

11

11

10

10

10

10

10

11

11

28

19

15

13

Feb.

13

12

11

9.5

9.1

8.9

.1

7.8

8.7

15

11

10

10

9.7

9.1

9.1

11

12

11

10

10

9.5

9.0

8.9

8.9

9.1

10

9.8

_

_

-

Month

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

Calendar year 1946 ......................

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

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

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

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

Water year 1946-47 ......................

Mar.

9.6

9.4

10

13

9.7

8.0

7.8

7.5

7.5

7.7

7.1

6.7

6.5

6.3

6.3

6.3

6.1

6.3

6.5

6.7

6.9

6.7

6.8

6.2

5.8

5.7

6.0

9.0

7.5

7.0

6.7

Apr.

6.5

6.7

7.2

7.7

7.7

7.6

7.6

7.1

7.2

7.1

6.9

6.7

6.6

6.4

6.1

6.2

6.2

6.6

6.7

7.0

7.7

8.3

7.5

7.3

7.1

7.3

7.1

6.9

6.8

6.2

-

Secondfoot-clays

110.6

834.1

572.8

3,451.8

442

229.3

210.0

11.6

14.1

2,963.3

May

5.6

5.3

5.0

4.5

4.5

4.6

4.8

5.0

5.2

5.7

5.8

5.4

5.0

5.5

5.7

5.0

4.5

4.2

4.0

4.0

4.1

4.4

4.2

4.0

3.9

4.0

5.6

5.1

4.3

4.5

4.8

Maximum

27

130

120

130

28

15

13

8.3

4.4

1.0

1.8

130

June

4.4

4.0

4.3

4.0

4.3

4.2

4.1

4.2

4.4

4.2

3.8

3.0

2.6

2.7

2.6

2.5

2.0

2.0

2.1

2.8

3.3

2.5

1.9

1.9

2.0

2.0

2.0

2.0

1.9

1.8

-

Minimum

l.C

3.7

6.6

.2

10

7.8

5.7

6.1

3.9

1.8

.1

.1

.2

.1

July

1.7

1.4

1.2

1.3

1.1

1.2

1.0

.9

.8

.8

.8

.9

.8

.6

.7

.6

.6

.5

.4

.4

.2

.3.3'

.2

.3

.3

.2

.1

.1

.1

.1

Aug.

0.1

.2

.1

.1

.1

.1

.1

.?.

.3

.4

.3

.3

.4

.5

.7

.7

.6

.5

.7

1.0

.8

.8

.7

.5

Mean

3.57

27.8

18.5

9.46

14.3

10.0

7.40

7.00

4.78

2.98

.64

.37

.47

8.12

Sept.

0.4

.2

.2

.2

.2

.2

.2

.2

.3

.8

.7

.4

.3

.3

.2

.2

.4

1.8

1.2

.9

.9

.9

.7

.4

.3

.3

.3

.3

.3

.4

-

Runoff in 

ao re-feet

219

1,650

1,140

6,840

877

558

455

417

294

178

39

23

28

5,880
SAN1A ANA RIVER BASIN 73

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

Location.- Water-stage recorder, lat. £4°08'35", long. 117°ll'2b" J in NW£ sec. 27, T. 1 

JN. , K. 3 W., 1.5 miles northeast of Highland.

Records available.- May 1924 to Septemter 1947. 

Average discharge.- 23 years, 2.37 seccnd-feet.

Extremes - Maximum daily discharge during year, 8.5 second-feet Feb. 18; no flow on 

occasional days during several montt s.

1924-47: Maximum discharge, 10 Eecond-feet May 30, 1927; no flow at times.

Rema-rks.- Records fair except those for period of no gage-heignt record, which are poor. 

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, rater year October 1946 to September 1347

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.5

2.0

2.0

1.7

1.7

1.6

1.4

1.3

1.2

1.1

1,0

1.0

1.1

1.0

1.3

2.5

2.3

2.1

2.1

2.1

1.9

1.9

2.0

1.7

1.7

1.9

1.4

3.2

1.7

1.5

2.3

Nov.

3.4

3.8

3.9

3.5

3.4

3.4

3.3

.3

.1

0

.1

.3

.9

.1

0

0

0

1.5

3.5

2.4

.2

1.5

.9

0

.9

2.1

2.2

2.2

2.1

2.5

-

Dec.

3.1

2.9

2.8

2.6

2.5

1.6

0

.6

1.7

2.0

1.9

2.0

2.0

2.0

2.0

2.4

2.9

2.9

2.9

2.9

1.2

.2

1.3

2.0

2.5

2.3

2.0

1.0

.2

.2

.5

Jan.

0.7

.8

.8

.6

.5

1,8

3.7

3.6

3.7

3.7

3,7

3.7

3.6

2.3

1.4

1.0

.9

1.2

1.9

2.4

2.4

2.4

2.4

2.4

2.5

2.6

2.6

2.9

0

1.9

3.9

Feb.

3.9

3.8

3.8

3.7

3.7

3.8

3.8

3.8

3.9

4. 3

4.1

4.0

4.0

3.9

6.2

7.3

8.1

8.5

8.4

7.7

7.1

7.1

6.8

6.7

6.7

6.7

7.1

7.0

-

-

-

Month

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

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

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

Calendar year 1946 ......................

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

February .................................. .1

March. .................................... j

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

May.............................,..........|

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

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

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

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

Water year 1946-47 ................. ....

Mar.

7.0

6.8

7.0

5.6

0

1.2

2.4

2.4

2.4

4.7

5.3

5.2

5.0

4.9

4.8

4.9

5.0

5.2

5.3

5.5

5.7

5.5

5.4

5.0

4.8

4.7

4.8

6.0

5.5

5.3

5.0

Apr.

5.0

5.2

5.5

5.9

5.9

5.6

5.9

6.0

6.1

6.1

6.1

6.1

6.1

6.0

5.9

5.9

5.9

6.2

6.2

6.5

6.8

7.3

7.0

6.8

6.5

7.0

6.8

6.6

6.5

5.9

-

Secondfoot-days

54.2

48.6

57.1

900.2

58.0

155 . 9

143 '.3

185.3

143.2

84.2

18.8

11.6

14.1

983.3

May

5.3

5.0

4.7

4.3

4.3

4.2

4.6

4.8

5.0

5.5

5.7

5.3

4.9

5.4

5.6

4.9

4.4

4.1

3.9

3.9

4.0

4.3

4.1

3.9

f3.8

f3.8

5.4

5.0

4.2

4.2

4.7

Maximum

3.2

3.9 s!i

6.2

3.9

8.5

7.0

7.3

5.7

4.3

1.6

1.0

1.8

8.5

June

4.3

3.9

4.1

3.8

4.0

3.9

3.8

3.9

4.2

4.1

3.7

2.9

2.5

2.6

2.5

1.7

1.7

1.8

1.9

2.6

3.2

2.4

1.8

1.8

1.9

1.9

1.9

1.9

1.8

1.7

-

minimum

1.0

0

0

0

0

3.7

0

5.0

3.8

1.7

.1

.1

.2

0

July

1.6

1.3

1.1

1.2

1.0

1.1

.9

.8

.7

.7

.7

.9

.8

.6

.7

.6

.6

.5

.4

.4

.2

.3

.3

.2

.3

.3

.2

.1

.1

.1

.1

Aug.

0.1

.2

.1

.1

.1

.1

.1

, a. 2

.3

.4

.3

.3

.4

.5

.7

.7

.6

.5

.7

1.0

.8

.8

.7

.5

Mean

1.75

1.62

1.84

2.47

2.19

5 ".57

4.78

6.18

4.62

2.81

.61

.37

.47

2.71

Sept.

0.4

.2

.2

.2

.2

.2

.2

.2

.3

.8

.7

.4

.3

.3

.2

.2

.4

1.8

1.2

.9

.9

.9

.7

.4

.3

.3

.3

.3

.3

.4

-

Runoff in 

acre-feet

108

96

113

1,790

135

309

294

368

284

167

37

23

28

1,960

a No gage-height record; discharge Interj 

f Discharge computed on basis of partly

olated.

jtimated gage-halght re
74 ' SANTA ANA RIVER BASIN

Devil Canyon Creek near San Bernardino, Calif.

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.

Drainage area.- 6.16 square Miles.

Records available.- November 1911 to September 1912, October 1913 to September 1914, 

December iyia to September 1947.

Average discharge.- 28 year's (1913-14, 1920-47), 2.10 second-feet.

Extremes.- Maximum discharge during year, 162 second-feet Nov. 20 (gage height, 3.10 

reet); no flow for several months.

1913-14, 1919-47: 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 1,810 acre-feet above station 

during year for municipal supply.

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. Nov.

0 

0 

O 

0 

O

0 

0 

0 

0 

0

0 

1.9 

16 

8.8 

4.4

2.4 

1.5 

1.0 

.6 

53

20 

11 

24 

22 

12

7.8 

6.1 

4.5 

3.3 

2.7

Dec.

2.4 

2.2 

1.8 

1.7 

1.4

3.3 

3.9

3.0 

2.0 

.8

1.1

.8

.2 

.2

.2 

.2 

.2 

.3

.2

.3

.4 

.2 

.2 

2.8

15 

19 

12 

8.5 

7.6 

7.0

Jan.

6.5 

4.1 

3.0 

3.2 

2.1

2.4 

4.5 

5.0 

5.0 

4.7

3.0 

1.6

1.4 

1.0

1.3 

1.3 

.8 

.7 

.7

.7 

.7 

.8 

.7 

.6

,6 

.6 

1.6 

1.3 

.8 

.7

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hav

June 

July 

Augu 

Sept

Wa

mber .........................

lendar year 1946 

ary

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

st ...........................

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

ter year 1946-47 ............

Peak discharge.- Nov. 13 (12:30

Feb.

0.7 

.6 

.6 

.6 

.5

.6 

.7 

.3 

.3

.7

.7 

.5

.4 

.2

.2 

.2 

,2 

.2 

.2

.2 

.1 

.1 

.1 

' .1

.1 

.1 

.1

Secondfoot-days

0 

203.0 

99.3

389.09

63.1 

9.7 

6.2 

1.65 

.46 

0 

0 

0 

0

383.41

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 

.1

.1 

.1

1.4 

1.4 

.6 

.1

Apr.

 0.06 

 .05

Maximum

0 

53 

19

53

6.5 

.7 

1.4

0 

0 

0 

0

53

p.m.) 41 sec. -ft.; Nov

May

. 0.02 

' .01

Minimum

0 

0- 

.2

0

.6 

.1 

.1

0 

0 

0 

0

0

20 (12 m

June

Mean

0 

6.77 

3.20

1.07

2.04 

.35 

.20 

.055 

.015 

0 

0 

0 

0

1.05

) 162 sec.

July Aug.

Runoff 

in 

acre-feet

0 

403 

197

773

125 

19 

12 

3.3 

.9 

0 

0 

0 

0

760

Sept.

Diversion 

acre-feett

88- 

124 

199

1,690

214 

185 

202 

193 

190 

153 

106 

89 

66

1,810

-ft.; Nov. 23 (4 p.m.)

47 sec.-ft.; Dec. 26 (5:45 a.m.) 36 sec.-ft.

t Diversion by city of San Bernardino. Record furnished by that city.
SANTA ANA RIVER BASIN 75

Lytle Creek near Pontana, Calif.

Location.- At Intake of Pontana pipe line, lat. 34°12'05", long. 117°27'05", In NW£ sec: 

6, T. 1N..R. 5W., unsurveyed, Just downstream from Lytle Creek power plant of 

Southern California Edison Co. and 8 miles north of Pontana. Altitude of gage, about 

2,200 feet.

Drainage area.- 47.9 square miles.

Records available.- October 1918 to September 1921, October 1922 to September 1947.

Average discharge.- 28 years, 9.92 second-feet. Average combined discharge of creek and 

Pontana pipe line, 28 years, 41.9 second-feet.

Extremes.- Maximum discharge during year 1,000 second-feet Nov. 20; no flow during most 

of year.

1918-21, 1922-47: Maximum discharge, 25,200 second-feet Mar. 2, 1938, by slopearea method; no flow during most of each year.

Remarks.- Records good. Records for Pontana pipe line Include Breed pipe line and 

other minor diversions In addition to main pipe line flow which passes through 

Pontana powerhouse and Is then used for Irrigation and domestic supply. Table on 

following page shows combined flow of Lytle Creek and Pontana pipe line, which is 

total flow of Lytle Creek.

Cooperation.- oper "coT Records of flow through diversion works furnished by Pontana Union Water

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. Nov.

0

0

0

0

0

0

0

0

O

0

0

27

112

18

1

O

0

0

0

200

79

39

173

154

88

46

30

25

26

21

-

Dec.

16

IS

14

12

10

23

14

7

6

3

.3

.4

.1

.1

7

11

9

7

8

7

6

5

7

7

124

436

170

116

71

65

78

Jan.

61

50

37

34

35

31

28

27

30

35

35

35

35

32

36

30

2826'

27

25

24

22

21

21

19

17

16

27

221

21

19

Month

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

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

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

Calendar year 1946 ............

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

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

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

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

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

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

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

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

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

Water year 1946-47 ............

Feb.

18

17

IS

15

14

12

11

10

18

16

11

20

10

10

9

10

17

21

14

10

5

3.8

3.2 z'.i

2.2

2.2

1.3

_

-

Seoondf cot-days

O

1,039

1,255.9

3,495.0

906

301.8

5.0

1.3

O

0

0

0

0

3,509.0

liar.

0.2

.1

.3

1.3

1.6

.4

.2

.3

0

0

0

.6

0

0

0

O

O

0

0

0

0

O

0

0

O

0

0

0

0

0

O

Apr.

O

0

O

0

0

O

O

0

0

0

0

0

0

O

0

O

0

O

0

0

O

O

0

O

0

0

O

1.3

O

O

Maximum

O

200

436

562

61

21

1.6

1.3

0

0

0

0

O

436

Hay

Minimum

0

0

.1

O

16

1.3

0

O

0

0

O

0

0

0

June

Mean

o

34.6

40.5

9.5C

29.2

10.8

.If

.04

O

0

0

0

O

9.6]

July Aug.

Runoff in 

acre -feet

O

2,060

2,490

J 6,930

1,800

599

> 9.9

L 2.6

0

0

0

0

0

L 6,960

Sept.

Diversion 

[acre-feet) t

2,020

1,890

2,580

26,600

2,660

2,310

2,220

2,180

2,500

2,250

1,950

1,690

1,520

25,770

t Diversion through Fontana pipe line.
76 SANTA ANA RIVER BASIN

Combined discharge, In second-feet, of Lytle Creek and Fontana pipe line near Fontana, Calif., 

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

2b

26

27

28

29

30

31

Oct.

33

33

33

33

33

33

33

33

33

33

: ' :-)

33

33

33

33

33

33

33

33

33

33

33

33

33

32

33

33

33

33

32

32

NOV.

32

32

32

32

32

32

32

31

29

28

28

55

118

45

41

35

32

33

34

218

102

77

195

177

122

87

75

70

70

67

-

Dec.

65

64

62

61

62

66

60

58

57

56

55

55

53

52

51

51

49

48

48

47

46

46

48

48

152

440

191

136

110

108

113

Jan.

106

96

87

85

83

81

79

78

76

76

76

76

75

72

73

71

69

68

67

66

64

63

63

63

61

59

58

70

65

63

61

Feb.

60

59

58

57

56

54

53

52

60

58

52

52

52

52

51

52

59

63

56

52

47

46

45

45

44

44

44

43

_

-

Month

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

Calendar year 1946 ......................

Hay

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

Water year 1946-47 ......................

Mar.

42

42

42

42

42

41

41

41

40

39

39

39

37

33

33

32

33

34

33

33

33

32

32

32

33

33

33

35

34

34

34

Apr.

33

33

34

34

34

34

34

34

34

34

34

34

34

34

34

34

36

38

39

39

39

40

41

41

41

41

41

41

41

41

Secondfoot-days

1,020

1,993

2,558

16,911

2,250

1,466

1,123

1,101

1,258

981

766

16,503

May

40

 1<>

39

39

38

39

39

39

39

40

40

40

39

40

40

41

42

42

42

42

42

42

42

42

42

42

42

41

41

41

41

Maximum

33

218

440

571

106

63

42

41

42

41

35

29

27

440

June

41

41

41

41

41

40

40

40

39

39

39

39

38

38

37

37

37

37

37

37

37

36

36

35

35

35

35

35

35

Minimum

32

28

46

27

58

. 43

32

33

38

35

29

26

25

25

July

35

34

34

34

34

33

33

33

33

33

33

33

32

32

32

32

31

31

31

31

31

31

30

30

30

30

29

29

29

29

29

Aug.

29

29

29

29

28

28

23

28

28

23

28

28

27

27

27

27

27

27

27

28

28

27

27

27

27

27

27

27

27

27

26

Mean

32.9

66.4

82.5

46.3

72.6

52.4

36.2

36.7

40.6

37.8

31.6

27.5

25.5

45.2

Sept.

26

26

26

26

26

26

26

26

27

27

26

25

25

25

25

25

26

26

26

?.b

25

25

25

25

25

25

25

25

25

25

Runoff in 

acre feet

2,020

3,950

5,070

33,520

4,460

2,910

2,230

2,180

2,500

 2,250

1,950

1,690

1,520

32,730
SANTA ANA RIVER BASIN 

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

77

Location.- Water-stage recorder, lat. 34°05'45", long. 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 1947.

Extremes.- Maximum discharge during year, 13 second-feet Nov. 13 (gage height, 1.64 feet)- 

minimum daily discharge, 0.2 second-foot Oct. 31, Nov. 1, 3.

1929-47; Maximum discharge, 21,500 second-feet Mar. 2, 1938, by computation of 

flow through contracted opening; no flow during parts of some years.

Maximum total discharge of Lytle Creek (east and west channels combined), 29,400 

second-feet Mar. 2, 1938.

Remarks.- Records poor. Water diverted Trom Lytle Creek above station by Fontana pipe 

line and minor diversions for irrigation, and to debris cone for ground-water recharge. 

Since 1945, Lytle Creek flood-control dam, 1:5 miles above station, has diverted flood 

flow away from this channel and carried it direct to Warm Creek. Capacity of floodcontrol channel, 30,000 second-feet. A maximum of 300 second-feet of low-stage flow 

can be diverted to east channel at dam when desired. Water over spillway of dam would 

enter this channel.

Discharge, in second-feet, water year October 1946 tc 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.

0.5 

.4 

.6

.6 

.4

.5

'.5

.5

.7 

.4 

.3 

.4

.5 

.6 

.5 

.5 

.6

.6 

.5 

.6 

.3 

.5

.5 

.8 

.6 

.5 

.3 

.2

Nov.

0.2 

.3 

.2

.3

.4

2.0 

.6 

.6

1.6 

2.4 

2.1 

.6

.5 

.6 

.6 

.6 

1.0

.6 

.6 

2.1 

.7 

.8

.7 

.7 

.6 

.6 

.7

Dec.

0.6 

.6 

.6

.6

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6

.7 

.7 

.7 

.7

.8

.8 

.8 

.9 

1.0 

1.3

3.0 

1.8 

.9 

.8 

.6 

.6

Jan.

0.6 

,6

,8

..7 

,7 

,8 

.8

1.0 

1.1 

1.3 

li.2

1.2 

1.1 

1.2 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

.9

.9 

.8 

.8 

.8 

.8 

.9

Feb.

1.0 

1.3

.8

.9 

.9 

1.0 

1.2

1.0 

.7 

.5

.8

.8 

1.0 

1.3 

1.0 

1.1

1.0 

1.0 

1.4 

.7 

.8

1.0 

.8 

.8

Month

Octc 

Neve 

Deoe

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

her.. ..... ............................

mber. ..... .............................

lendar year 1946 

ary

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

St.. ...................................

ter year 1946-47 ...............

Mar.

0.8 

.8

.3

.6 

.9 

.4 

1.8

1.8 

1.4 

.8 

.6

.4 

.3 

.4 

1.0 

1.6

2.2 

2.7 

.7 

.7 

.7

.7 

.8 

1.0 

.9 

.7 

.9

Apr.

0.9

1.1

.7

.7 

.6

.8 

1.0

.8 

.6 

.6 

.6

.5 

.4 

.4 

.3 

.3

.5 

.7 

.8 

.7 

.6

.6 

.8 

.6 

.5 

.6

Seccndfoct-days

15.7 

24.4 

25.2

293.0

27.9 

27.1 

30.2 

20.8 

18.6 

15.6 

16.5 

13.4 

15.9

251.3

Hay

0.4 

.3

.6

.8 

.7 

.8 

.6

.6 

.4 

.5 

.9

.8 

.6 

.4 

.4 

.6

.6 

.9 

.8 

.8 

.4

.4 

.8 

.6 

.8 

.6 

.6

Maximum

0.8 

2.4 

3.0

3.0

1.3 

1.4 

2.8 

1.1 

.9 

.8 

.7 

.6 

.8

3.0

June

0.6 

.8

.6

.5 

.5 

.6 

.5

.7 

.5 

.4 

.3

.4 

.5 

.4 

.5 

.5

.6 

.4 

.5 

.5 

.4

.4 

.5 

.5 

.4 

.5

Minimum

0.2 

.2

.6

.1

.5 

.5 

.3 

.3 

.3 

.3 

.4 

.3 

.3

.2

July

0.6 

.6

.5

.6 

.5 

.5

.6

c

.5 

.4 

.5 

.6

.6 

.7 

.6 

.6 

.6

.6 

6 

6 

.6 

.7

.5 

.5 

.4 

.4 

.4 

.4

Aug.

0.4 

.4

.4

.6 

.5 

.4 

.3

.4 

.4 

.4 

.4

.4 

.4 

.5 

.4 

.4

.5 

.5 

.5 

.4 

.3

.4 

.4 

.5 

.6 

.6 

.4

Mean

0.51 

.81 

.81

.80

.90 

.97 

.97 

.69 

.60 

.52 

.53 

.43 

.53

.69

Sept.

0.3 

.3

.4

.4 

.5 

.4 

.5 

.5

.5 

.5 

.6 

.4 

.4

.5 

.5 

.5 

.6 

.5

.5 

.7 

.7 

.8 

.8

.7 

.7 

.6 

.6 

.7

Runoff in 

acre-feet

31 

48 

50

581

55 

54 

60 

41 

37 

31 

33 

27 

32

499
78 SANTA ANA RIVER BASIN

Cajon Creek near Keenbrook, Calif.

Location.- Water-stage recorder, lat. 34°16'00", long. 117°27'35", in SWjSE^- sec. 12,

 T. iJ N. , R. 6 W., 1,800 feet upstream from Lone Pine Creek and 1.5 miles north of

Keenbrook. Altitude of gage, about 2,630 feet. 

Drainage area.- 40.9 square miles. 

Records available.- December 1919 to September 1947. 

Average discharge.- 27 years (1920-47), 10.4 second-feet. 

Extremes.- Maximum discharge during year, 750 second-feet Nov. 13 (gage height, B.bO

 feet); minimum daily, 3.4 second-feet several days in October and September.

1919-47: Maximum discharge, 14,500 second-feet Mar. 2, 1938 (gage height, 19.3 

feet), by slope-area method; minimum, 0.05 second-foot June 25, 1920.

Revision.- The maximum discharge for the water year 1946 has been revised to 780 

second-feet Mar. 30 (gage height, 8.67 feet) superseding figure published in WaterSupply Paper 1061. Remarks.- Records fair below 20 second-feet and poor above. No diversion or regulation

above station. . , . Revisions.- Revised figures of discharge, in second-feet, for the high water period in

 March 1946, superseding those published in Water-Supply Paper 1061, are given 

herewith:

Month Serond-foot 

days Maximum Minimum Mean Runoff in 

acre -feet

1 ' 230

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.

3.7

3.7

3.9

3.9

3.7

3.9

3.9

3.9

4.1

4.1

3.9

3.9

3.7

3.5

3.5

3.5

3.4

3.4

3.5

3.5

3.5

3.5

3.7

3.7

3.7

3.9

4.1

4.3

4.3

4.3

4.3

NCT.

4.3

4.1

3.9

3.9

3.9

3.9

3.9

3.9

3.7

3.9

5.0

57

390

92

44

34

30

25

20

94

28

25

42

29

23

22

14

12

12

12

-

Dec.

12

11

12

12

12

13

11

12

11

10

10

10

10

9.2

9.2

8.8

8.8

8.5

8.5

8.5

8.5

8.5

8.8

9.2

. 80

170

53

28

24

20

18

Jan.

17

16

15

14

15

15

14

14

13

14

14

14

14

14

12

11

10

10

11

10

10

9.6

9.2

9.2

8.8

9.2

9.2

9.6

8.8

8.8

8.8

Feb.

8.8

9.2

9.6

9.6

10

10

10

9.6

10

10

9.6

9.6

9.6

9.2

9.2

8.8

8.5

8.2

7.5

7.1

6.8

6.8

6.9

7.1

7.1

7.1

7.5

7.5

_

-

Month

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

Calendar year 1946 ......................

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

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

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

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

Water year 1946-47 ......................

Mar.

7.5

7.5

7.5

7.5

7.5

7.1

6.8

7.1

7.1

7.1

7.1

6.8

6.8

6.4

6.1

6.1

6.1

6.1

5.8

6.1

6.1

6.1

6.1

6.1

6.1

6.4

6.4

6.8

6.4

6.8

6.1

Apr.

6.4

6.4

6.1

6.4

6.1

6.1

6.1

8.4

6.4

6.4

6.1

5.8

5.8

5.5

5.5

5.5

5.5

5.8

5.8

5.1

5.8

S.I

6.1

6.1

6.4

6.4

6.4

6.1

5.8

5.8

Secondfcct-days

949 4

635.5

3,947.6

123 3

110.9

3,339.4

May

5.5

5.2

4.9

4.9

5.2

5.5-

5.5

5.5

5.5

5.2

5.2

5.5

5.2

5.2

5.2

4.9

4.6

4.6

4,6

4.9

4.9

5.3

5.5

5.2

4.9

4.9

5.2

5.2

5.2

5.2

4.6

Maximum

170

310

4.2

290

June

4.6

4.9

4.4

4.4

4.3

4.3

4.2

4.2

4.6

4.6

4.4

4.3

3.9

4.2

3.9

3.9

3.9

3.9

4.2

4.. 4

4.3

4.4

4.4

4.4

4.6

4.4

4.4

4.6

4.6

4.4

-

tUninum

8.5

3.0

5 8

3 9

3.4

3.4

July

4.4

4.2

4.2

3.9

3.9

3.4

3.9

4.2

3.9

3.9

4.2

3.9

3.9

3.6

3,9

4.3

3.9

3.9

3.9

3.9

3.9

4.2

4.2

4.3

4.3

3.9

3.9

3.9

3.9

3.9

3.9

Aug.

3.9

4.3

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.9

3.9

3.9

4.2

3.9

3.9

Mean

20.5

10.8

5 12

3.7O

9.15

Sept.

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

4.2

3.9

3.9

3.9

3.6

3.4

3.4

3.4

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.4

3.4

3.6

3.6

3.6

-

Runoff in 

acre-feet

1,260

7,830

245

230

6,620

Peak discharge.- Nov. 13 (11 a.m.) 750 see.-ft. ; Dec. 26 (3:30 a.m.) 700 sec.-ft.
SANTA ANA RIVER BASIN 79 

Meeki3 & 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 C*reek and 1.6 miles northeast 

of Colton, San Bernardino County. Altitude of gage, 966 feet (from topographic map).

Records available.- September 1920 to September 1947. 

Average discharge ._- 27 years, 10.9 second-feet.

Extremes.- Maximum daily discharge during year, 20.4 second-feet Aug. 3; no flow during 

many days.

1920-47: Maximum daily discharge, 25 second-feet Mar. 2, 1938; no flow at times.

Remarks.- Records excellent. Canal diverts water from right bank of Warm Creek 1.6 miles 

northeast of Colton for irrigation in vicinity of Colton, Riverside, and Corona.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

1?.

13

14

15

16

17

18

19

20

21

22

23

24

25

26

77

28

?<*

30

31

Oot.

19.2

19.4

19.6

19.8

19.6

19.5

19.8

19.6

19.2

19.3

19.3

19.5

19.3

19.5

19.8

19.9

19.9

19.9

19.6

19.4

19.3

19.2

19.5

19.1

19.3

19.5

19.5

19.0

19.1

19.6

19.4

Nov.

19.5

19.4

19.4

19.4

19.4

19.4

19.5

9.6

3.7

3.7

3.2

1.8

.9

.5

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

-

Dec. Jan.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.5

1.4

5.6

11 .,0

12 .,1

12 ,,2

11,5

12 ,,2

11, .9

11.7

11,6

9,0

4.2

4.2

4.2

Month

Feb.

4.4

4.4

4.4

4.4

4.9

5.2

5.0

5.0

4.9

3.8

3.5

3.4

7.9

12.4

10.5

12.3

14.9

12.4

10.6

10.6

10.4

10.6

10.5

12.7

15.3

15.2

15.2

15.1

_

.

-

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

Calendar year 1946 ......................

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

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

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

Water year 1946-47 ......................

Mar.

15.2

15.1

15.3

13.7

12.5

12.3

13.4

14.1

14.0

13.9

14.0

13.5

13.2

13.1

12.8

12.8

11.8

11.7

15.5

16.1

16.2

14.9

14.4

14.4

14.9

16.2

16.7

16.2

16.2

17.4

17.4

Apr.

17.2

17.1

16.5

13.6

16.1

16.2

16.5

17.0

17.5

17.4

17.3

17.1

17.7

18.1

17.6

17.4

17.4

17.5

17.2

17.1

17.2

17.4

17.1

17.3

18.0

16.8

16.7

16.9

16.9

17.1

-

Seoondfoot-days

0

4,408.8

580.9

5,016.4

May

16.5

16.6

17.8

18.2

18.4

18.3

18.0

17.9

18.0

17.9

18.0

18.4

18.3

17.6

17.3

18.2

17.7

17.0

17.1

17.3

17.7

18.3

18.8

16.7

18.4

19.8

20.2

20.1

19.9

19.6

19.4

Maximum

19 5

0

20.4

19.6

20.4

June

18.9

19.2

19.2

18.5

18.7

19.1

19,1

19.6

19.4

19.1

18.9

18.9

19.4

19.4

19.4

19.2

19.3

19.3

19.2

19.2

19.4

19.3

19.3

19.5

19.6

19.6

19.6

19.3

19.0

19.1

-

Minimum

0

0

19.0

0

July

19.2

19.1

19.4

19.3

19.2

19.4

19.4

19.1

19.0

18.9

19.0

19.1

19.1

19.2

18.8

19.1

19.4

19.2

19.0

19.2

19.4

19.4

19.3

19.2

19.1

18.9

18.9

19.0

19.0

19.0

19.1

Aug.

19.3

19.9

20.4

19.9

19.4

19.1

19.4

19.6

19.6

19.9

19.8

19.3

19.3

19.3

19.7

19.8

19.6

19.4

19.4

19.6

19.8

19.6

19.4

19.4

19.5

19.7

19.8

19. &

19.4

19.1

19.0

Mean

0

12.1

19.4

13.7

Sept.

19.2

19.2

19.1

19.2

19.4

19.4

19.4

19.6

19.6

19.5

19.4

19.4

19.4

19.3

19.3

19.4

19.6

19.6

19.4

19.2

19.3

19.4

19.3

19.1

19.0

15.4

19.4

19.4

19.4

19.6

-

Runoff in 

acre-feet

0

8,740

245

1,150

9,950
80 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 sw£ sec. 8, T. 1 N., 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 1947.

Average discharge.- 18 years, 5.27 second-feet.

Extremes.- Maximum discharge during year, 232 second-feet Nov. 20; minimum daily, 0.4 

second-foot Sept. 26-27.

1929-47: Maximum discharge, 4,200 second-feet Mar. 2, 1938, by rainfall-runoff 

studies; minimum, 0.1 second-foot Dec. 19, 20, 1933.

Remarks.- Records poor. Etiwanda Witer Co. diverted 1,400 acre-feet above station during year.

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.

15

5.0

5.3

4.4

4.0

3.b

3.3

3.3

3.3

3.3

3.3

3.3

3.4

3.5

3.5

3.6

3.5

3.4

3.3

3.2

3.1

3.0

3.1

3.1

3.1

3.2

3.8

3.9

3.8

3.8

3.6

Nov.

2.2

.9

.9

.8

1.1

1.1

1.1

1.2

1.3

1.3

4.8

9.5

20

11

8.3

6.6

5.8

5.3

5.0

74

17

12

26

16

12

11

10

9.4

9.0

8.3

-

Dec.

7.9

7.5

7.2

6.8

6.5

6.3

6.0

5.5

5.3

5.2

5.2

5.4

5.4

5.4

5.4

5.4

5.4

5.4

4.9

4.4

4.4

4.4

4.2

4.3

43

51

30

24

21

21

19

Jan.

17

16

15

14

14

13

12

11

10

9.6

9.2

8.8

8.2

8.1

8.1

8.1

.9

.9

.9

.9

.7

.7

.7

.7

.5

.5

.5

1

£ . 1

.3

.0

Feb.

7.0

6.8

6.8

6.6

6.6

6.6

6.6

6.6

7.4

7.2

6.8

6.6

6.3

6.1

6.1

6.3

8.5

7.7

7.0

6.8

6.5

6.3

6.0

6.0

6.0

6.0

6.0

5.8

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

Mnv May. .......................................

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

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

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

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

Water year 1946-47 ......................

Uar.

5.6

5.8

6.0

6.0

6.0

5.8

b.8

5.8

5.6

5.5

5.5

5.6

5.6

5.6

5.6

3.4

1.4

1.4

1.3

1.4

1.4

1.4

1.4

1.2

1.2

1.2

.3

.8

.6

.6

.5

Apr.

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.2

al.l

al.l

al.l

al.l

al.l

al.l

al.l

al.l

al.l

al.l

al.l

al.l

1.0

1.0

.9

.9

.9

-

Secondfoot-days

121.9

292.9

342.8

1,697.7

300.4

185.0

110.3

36 . 6

27.4

23 * 7

17.7

19.1

16.5

1,494.3

May

0.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.9

.9

.9

.9

.9

.9

.9

.9

1.0

1.0

.9

1.0

.9

.9

.9

.9

.9

.9

Maximum

15

74

51

108

17

8.5

6.0

1.5

1.0

.9

.7

.7

.7

74

June

0.9

.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

.7

.7

.7

.7

-

Minimum

3.C

.6

4.2

.-

7.C

5.8

l.Z

e

. f

.1

.5

.5

.4

.4

July

0.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

Aug.

0.6

.6

.6

.6

.6

.6

.G

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.5

.5

.5

Mean

3. 93

9. 76

11.1

4.65

9.69

3 a 56

1.22

. 88

.79

.57

. 62

.55

4.09

Sept.

0.5

.5

.5

.6

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

'.e

.7

.6

.5

.5

.5

.5

.5

.5

.4

.4

.5

.5

.5

Runoff in 

acre-feet

242

581

680

3,370

596

367

219

73

54

47

35

38

33

2,960

Peak discharge.- Nov. 20 (11:30 a.m.) 232 sec.-ft.; Nov. 23 (12 m.) 79 sec.-ft.; Dec. 25 (6:30 p.m.) 

143 sec.-ft.; Dec. 26 (2:30 a.m.) 134 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range in stage and interpolation.
SANTA ANA RIVER BASIN 81

Cucamcnga Creek near Upland, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°10'15", long. 117°37>fafa", 

in Ni;£ se3. 17, T. 1 N. , B. 7 W., 6 miles north of Upland. Altitude of gage, about 

2,550 feet.

Drainage area.- 10.1 square rriles.

Records available.- December 1£28 to September 1947.

Average discharge.- 18 years (1929-47), 9.52 second-feet.

Extremes.- Maximum discharge diring year, 500 second-feet Nov. 20 (gage height, 4.40 

I'eet); miaimum daily, 2.3 second-feet on several days.

1928-47: Maximum discharge, 10,300 second-feet Mar. 2, 1938, from rainfall-runoff 

study; minimum, 0.8 seconc-foot July 16, 17, Aug. 18 to Sept. 15, Oct. 2-G, 1934.

Remarks.- Records fair. No civersion or regulation above station.

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.

21 

7.2 

7.5 

6.0 

5.3

5.0 

4.5 

4.2 

a3.8 

a3.5

a3.2 

a2.9 

a2.6 

2.3 

2.3

3.7 

3.4 

3.4 

3.2 

3.1

3.1 

3.1 

3.1 

3.0 

3.0

3.1 

5.7 

6.2 

4.5 

4.0 

3.8

Nov.

3.7 

3.6 

3.5 

3.4 

6.5

3.5 

3.5 

4.5 

3.8 

3.7

8.0 

22 

51 

18 

13

10 

10 

10 

9.9 

163

74 

36 

89 

55 

42

29 

23 

22 

18 

17

Dec.

17 

15 

14 

13 

13

13 

12 

11 

11 

10

10 

10

9.9 

9.6 

9.6

9.4 

9.4 

9.4 

9.4 

9.1

9.1 

8.8 

8.8 

9.1 

69

144 

117 

69 

38 

36 

28

Jan.

25 

22 

21 

20 

19

18 

17 

19 

19 

18

17 

16 

16 

15 

15

15 

14 

13 

13 

13

13 

13 

13 

13 

12

12 

12 

16 

14 

13 

13

Feb.

13 

12 

12 

12 

12

12 

12 

12 

13 

13

13 

12 

11 

11 

11

10 

12 

12 

11 

11

10 

9:9 

9.6 

9.6 

9.4

9.4 

9.4 

9.4

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

liber. ..................................

lendar year 1946 

ary

h. .....................................

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

St. ....... ............................

smber. .... ............................

ter year 1946-47 ......................

Peak discharge.- H

(12m) 150 sec. -ft.; 

a Ho gage-height r

Mar.

9.1 

8.1 

8.8 

8.8 

8.6

8.3 

8.1 

8.1 

8.1 

7.9

7.9 

7.9 

7.8 

7.9 

7.9

7.9 

7.7 

7.9 

8.1 

8.1

8.6 

8.7 

8.6 

8.3 

8.1

8.1 

8.3 

8.8 

8.6 

8.6 

8.6

Apr.

8.6 

8.6 

8.6 

8.6 

8.3

8.3 

8.3 

8.1 

8.1 

8.1

8.1 

7.9 

7.9 

7.7 

7.5

7.5 

7.5 

7.3 

7.3 

7.3

7.5 

7.5 

7.3 

7.2 

7.2

7.4 

7.3 

7.2 

6.8 

6.4

May

6.0 

5.9 

5.6 

5.5 

5.3

5.2 

5.1 

4.9 

4.7 

5.1

5.1 

4.9 

4.9 

5.3 

5.3

~ 4.7 

4.7 

4.5 

4.4 

4.5

4.8 

4.9 

5.13 

4.7 

4.4

4.7 

5.7 

5.3 

5.1 

5.6 

5.9

June

5.5 

5.6 

5.6 

5.7 

5.7

5.3 

5.1 

5.5 

5.3 

4.8

4.7 

4.0 

4.1 

4.4 

4.5

4.3 

4.3 

4.1 

4.3 

5.3

5.2 

4.5 

4.4 

4.4 

4.4

4.5 

4.4 

4.4 

4.1 

3.9

fooHays MaxiBum MiniBUm

140.7 £1 2.3 

756.6 163 3.4 

761.6 144 8.8

3,549.7 163 2.3

489 25 12 

313.7 13 9.4 

257.0 9.1 7.7 

231.4 8.6 6.4 

157.8 6.0 4.4 

142.3 5.7 3.9 

97.4 3.7 2.9 

86.0 3.1 2.3 

79.5 3.1 2.3

3,513.0 163 2.3

July

3.7

3.7 

3.5 

3.6 

3.5

3.4 

3.2 

3.2 

3.1 

3.1

3.2 

3.2 

3.0 

3.2 

3.2

3.2 

3.0 

2.9 

2.9 

2.9

2.9 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

2.9 

2.9

Aug.

2.9 

2.8 

2.8 

2.8 

2.7

2.8 

2.8 

2.9 

3.0 

3.0

3.1 

3.0 

2.8 

2.7

2.6

2.5 

2.4 

2.3 

2.4 

2.6

2.8 

2.8 

2.8 

2.8 

2.8

2.9 

2.9 

2.9 

2.9 

2.8 

2.7

Sept.

2.7

2.7 

2.6

2.6 

2.7

2.7 

2.8 

2.9 

3.1 

2.9

2.8 

2.6 

2.4 

2.4 

2.3

2.3 

2.8 

2.9 

2.8 

2.7

2.9 

2.8 

2.8 

2.7 

2.5

2.5 

2.4 

2.3 

2.3 

2.5

u <, Runoff in Mean acre-feet

4.54 279 

25.2 1,500 

24.6 1,510

9.73 7,040

15.8 970 

11.2 622 

8.29 510 

7.71 459 

5.09 313 

4.74 282 

3.14 193 

2.77 171 

2.65 158

9.62 6,970

av. 13 (11:30 a.m.) 150 sec. -ft.; Hov. 20 (11:15 a.m.) 500 sec. -ft.; Nov. 23 

Dec. 26 (3:30 a.m.) 260 sec. -ft. 

ecord; discharge interpolated.
82 SANTA ANA RIVER BASIN

San Jacinto River near San Jacinto, Calif.

Location.- Two staff gages, lat. 33°44'05", long. 116 0 49'45", in SE^ sec. 13, T. 5 S., 

R. IE., at highway bridge, 1 mile downstream from North Pork and 8.2 miles southeast 

of San Jacinto. Altitude of gages, about 1,980 feet.

Drainage area.- 140 square miles

Records available.- October 1920 to September 1947. 

Average discharge.- 24 years (1921-25, 1927-47), 24.0 second-feet.

Extremes.- Maximum daily discharge during year, 117 second-feet Nov. 23; no flow during 

several months.

1920-47: Maximum discharge, 45,000 second-feet (estimated) Feb. 16, 1927; no flow 

during several months of most years.

Remarks.- Records poor. Gages read once daily. Diversion and storage above station 

for irrigation. Partial regulation by Lake Hemet.

Cooperation.- Gage-height record furnished by Lake Hemet Water Co.

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. Nov.

O

o

.1.1.1

.1.1.1.1

.1

.1.1.1

1.3

18

16

.6

.1

.1

.1

34

22

117

103

38

34

21

18

18

18

-

Dec.

18

12

12

12

12

12

17

12

12

12

12

12

11

11

11

8.0

7.6

7.6

6.5

6.5

6.0

5.5

4.9

7.5

18

28

41

51

38

29

27

Jan.

17

16

14

11

11

11

11

11

1O

9.4

9.4

9.4

8.5

8.5

8.5

7.9

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.1

6.1

5.9

5.9

5.9

7.4

7.4

4.9

Feb.

2.8

2.8

2.8

0

O

O

O

O

0

O

O

O

O

O

O

O

O

O

0

O

O

0

O

0

0

0

O

0

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

0

460.3

 480 . 1

1,903.5

269.4

8.4

0

O

0

O

0

O

O

1,218.2

May

Maximum

0

117

51

117

17

2.8

0

0

0

0

0

0

O

117

June

Minimum

0

0

4.S

O

4.9

O

O

O

O

O

O

0

0

0

July Aug.

Mean

0

15.3

15.5

5.22

8.69

.30

0

0

0

0

0

0

0

3.34

Sept.

Runoff in 

acre-feet

0

913

952

3,780

534

17

0

0

0

0

0

0

o

2,420
SANTA ANA RIVER BASIN j 

San Jacinto River near Elsinore, Calif.

Location.- Water-stage recorder, lat. 33°39'45", long. 117°17'45", near east line of 

sec. 9, T. 6S..R. 4W.,2 miles east of Elsinore and 2.2 miles upstream from 

Elsinore Lake (low-water sts.ge ). Altitude of gage, about 1,270 feet.

Drainage area,.- 717 square miles.

Kecords available.- January 1916 to September 1947.

Average discharge.- 31 years, 17.8 second-feet.

Extremes.- Maximum discharge during year, 2.3 second-feet Dec. 26 (gage height, 2.71 

reet); no flow during several months.

1916-47: Maximum discharge', 16,000 second-feet Feb. 17, 1927 (gage height, 11.8 

feet), by slope-area method; no flow during several months in most years.

Remarks.- Records good. Storage and diversions above station for irrigation. Low flow 

controlled since 1928 by Railroad Canyon Dam (reservoir capacity, 12,000 acre-feet), 

2 miles above station.

Discharge, in second-feet, water year October 1946 to September 1947

Da;

1

2

3

4

5

6

7

8

9

11

13

14

16

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

.1

.9

.4

.2

.1

.1

.1

.1

.2

.2

.3

.4

.2

.2

.2

.2

.2

.2

-

Dec.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

1.5

.9

.6

.5

.4

.4

Jan.

O.4

.4

.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

Feb.

0.4

.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

_

-

Month

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

Calendar year 1946 ......................

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

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

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

July

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

Water year 1946-4? ......................

Mar.

0.3

.3

.3

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.3

.3

.3

.3

.6

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

Apr.

0.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

0

0

0

0

0

.1.1

.1

.1

.1

.1

.2

.2

.1

Secondfoot-daya

11.0

77.5

8 5

0

48.5

May

0.1

0

0

0

0

0

0

0

0

0

o

0

0

o o

0

o

o

0

o

o

Maximum

1.5

2.7

o

1.5

June

Minimum

.2

0

0

o

July Aug.

Mean

.14

.35

.21

.14

O

.13

Sept.

Runoff in 

acre-feet

0

8.5

22

155

8.1

.2

0

96

Elsinore Lake at Elsinore, Calif.

Location.- Staff gage, lat. 33°40'35", long. 117°21'30", on northeast shore, in La Laguna 

tJrant, at Aloha Beach Club, Elsinore, Riverside County. Datum of gage is 1,230 feet 

above mean sea level. Gage Heights have been reduced to elevations above mean sea 

level.

Records available.- December 1915 to September 1947.

.Extremes.- Maximum elevation observed during year, 1,241.8 feet Oct. 9, 11, Dec. 9, 17; 

minimum observed, 1,238.3 feet Sept. 18.

1915-47: Maximum elevation observed, 1,265.6 feet Mar. 20-25, 1916, during period 

of overflow; maximum observed since cessation of overflow in June 1917, 1,259.8 feet 

May 11-20, 1922; minimum observed, 1,226.6 feet in November and December 1936.

Remarks.- Elsinore Lake overflows into Temescal Creek, which is its outlet, only during 

ana after years of unusually heavy rainfall. There has been no outflow since June 30, 

1917. History of lake prior to 1916 is published in Water-Supply Paper 441. A summary of high stages that have occurred from 1916 to 1942 is contained in Water-Supply 

Paper 961.

Elevation, in fiiet, water year October 1946 to September 1947

Oct. 9

11

Nov. 8

Dec. 9

1,241.8

1,241.8

1,241.5

1,241.8

Dec.

Jan.

Feb.

17

7

3

18

1,241.8

1,341.7

1,241.6

i;241.6

Mar.

Apr.

3

18

31

22

1,241.5

1,241.4

1,241.4

1,241.2

May 7

20

June 2

12

1,241.1

1,240.8

1,240.6

1,240.4

July 2

17

Sept. 3

18

1,240.0

1,240.0

1,239.2

1,238.6

1,238.3
SANTA ANA RIVER BASIN

Temescal Creek near Corona, Calif.

Location.- Water-stage recorder, lat. 33°50'30", long. 117°30'45", in El Sobrante de Sin 

Jacinto Grant, 0.5 mile upstream from site of old Blue Diamond Quarry and 4 miles 

southeast of Corona, Riverside County. Altitude of gage, about 730 feet.

Records available.- January 1929 to September 1947. 

Average discharge.- 18 years, 5.74 second-feet.

Extremes.- Maximum discharge daring year, 100 second-feet Nov. 13 (gage height, 5.24 

feet); no flow during most of year.

1929-47: Maximum discharge, 14,900 second-feet Mar. 2, 1938, by slope-area 

method; no flow during parts of some years.

Remarks.- Records fair. Many diversions and several storage reservoirs in basin above 

this station, principally above Elsinore Lake.

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. Nov.

0

0

o

0

0

0

o

.3

0

0

O

2.1

10

1.7

0

0

0

0

0

0

0

0

1.3

0

o

0

0

0

0

0

-

Dec.

o

0

o

0

o

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

Jan. Feb.

Month

Deo ember. ...................................

Calendar year 1946 ......................

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

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

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

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

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

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

.1

252.4

0

15.7

May

Maximum

0

.1

10

0

0

0

0

10

June

Minimum

Cc

C

c

c

c

c

c

c

c

c

c

c

July Aug.

Mean

0

.52

.003

.69

O

0

0

0

0

0

0

0

) .04

Sept.

Runoff in 

acre-feet

0

31

.2

501

0

0

0

0

0

0

0

0

0

31
SANTA ANA RIVER BASIN 85

San Antonio Creek near Claremont, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°12'50", long. 117°40'00", 

 InTJWijSEi; sec. 36, T. 2 N., R 8 W., 0.5 mile upstream from Southern California Edison

Co.'s Sierra power plant and B miles northeast of Claremont. Altitude of gage, about

3,400 feet.

Drainage area.- 16.9 square miles;.

Records available.- March 1901 to September 1947.

Average discharge.- 30 years (:.9:7-47), 11.5 second-feet. Average combined discharge of 

creek and conduit, 30 years (".917-47), 24.7 second-feet.

Extremes.- Maximum discharge dur. ng year, 225 second-feet Dec. 26 (gage height, 2.98 

reet); minimum daily discharge-, 0.4 second-foot Oct. 22-24.

1917-47: Maxim-am dischai'ge, 21,400 second-feet Mar. 2 1938, by rainfall-runoff 

studies; minimum, less than 0.1 second-foot for several days in October 1934.

Remarks.- Records fair. Southern California Edison Co.'s conduit diverts water above 

station (see p. 87).

Cooperation.- Fifteen discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

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.

2.2

1.4

1.6

1.0

1.0

.9

.7

.6

.6

.6

.6

.6

.6

.5

.5

.7

.6

.6

.6

.5

.5

.4

.4

.4

.6

.6

.9

1.0

1.1

.9

.8

Nov.

0.7

.8

.6

.6

.6

.6

.6

.6

.6

.6

.9

4.3

16

6.1

2.4

2.6

2.4

2.4

2.4

18

9.6

6.9

19

18

17

18

18

20

20

20

~

Dec.

19

18

16

16

15

16

16

16

16

16

16

16

15

14

13

13

12

13

13

14

13

12

12

13

43

155

89

87

85

80

70

Jan.

74

69

56

49

42

38

36

33

32

30

30

29

28

27

27

28

23

23

22

21

20

20

18

16

16

15

14

14

12

11

11

Feb.

11

11

10

10

10

9.7

9.2

8.6

8.6

7.7

7.1

6.7

6.7

6.5

6.5

6.5

6.3

6.3

6.1

5.9

5.7

5.5

5.3

5.1

4.9

4.7

4.5

4.4

-

-

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

Unv May. .......................................

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

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

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

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

Water year 194S-47 ......................

Mar.

4.2

3.7

4.2

4.2

4.O

4.0

4.0

3.9

3.9

3.9

3.7

3.8

2.9

2.7

2.7

2.7

2.7

2.7

2.7

2.9

3.6

3.3

3.2

3.0

2.9

2.9

2.9

3.2

3.2

3.0

2.9

Apr.

2.7

2.9

2.9

2.9

2.7

2.6

2.9

2.9

3.0

3.0

3.0

3.0

2.7

2.4

2.3

4.2

2.1

2.1

2.1

2.1

2.1

2.7

2.9

3.2

2.9

2.3

2.1

2.2

1.3

1.5

-

Secondfoot-days

24.0

230.3

962

2,492.5

884

200.5

103.6

77.7

44.7

34.1

24.8

28.4

20.0

2,634.1

May

1.7

1.7

1.6

1.4

1.7

1.7

1.7

1.8

1.8

1.6

1.6

1.4

1.3

1.3

1.3

1.2

1.2

1.1

1.1

1.3

1.6

1.6

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.4

Maximum

2.2

20

155

155

74

11

4 2

4 2

1 8

1 7

1 2

1 3

9

155

June

1.4

1.4

1.4

1.4

1.7

1.7

1.6

1.6

1.3

1.2

1.1

1.0

1.0

1.0

.9

.7

.8

.8

.9

1.0

1.1

1.1

1.0

.9

1.0

1.1

1.1

1.1

1.0

.8

-

Minimum

0.4

.6

12

.4

11

4.4

2.7

1.3

1.1

.7

.6

.8

.5

.4

July

0.8

.6

.6

.6

.7

.7

.8

1.2

1.2

.8

.8

.8

.8

.8

.9

.8

.8

.8

.7

.7

.7

.7

.9

.9

.9

.8

.8

.8

.8

.8

.8

Aug.

0.8

.9

.9

.9

.9

.9

.9

.9

.8

.9

1.3

1.1

.8

.8

.8

.9

1.0

1.0

1.0

.9

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.8

Mean

0.77

7 .68

31.0

6.83

28.5

7.16

3.34

2.59

1.44

1.14

.80

.92

.67

7.22

Sept.

O.7

.6

.6

.6

.6

.6

.6

.6

.8

.9

.9

.8

.7

.6

.7

.7

.7

.8

.8

.7

.7

.6

.6

.6

.7

.6

.6

.6

.5

.5

-

Runoff in 

acre-feet

48

457

1,910

4,940

1..750

398

205

154

89

68

49

56

40

5,220

854211 O - 49 - 7
SANTA ANA RIVER BASIN

discharge, In second-feet, of San Antonio Creek and Southern California Edison Co 's 

conduit near Claremont, Calif., water year October 1946 to September 1947

Day

1

.2

6

7

9

11

13

14

16

IB

20

21

26

27

28

30

31

Oct.

12

12

14

12

12

12

12

12

12

12

12

12

12

12

12

12

13

13

12

10

10

11

10

10

11

11

12

12

11

11

11

NOT.

12

11

11

12

12

11

11

11

11

11

12

15

29

21

16

16

15

15

15

38

30

27

40

39

39

40

40

42

42

42

-

Deo.

41

40

38

38

37

37

37

38

38

38

38

38

37

36

35

35

34

35

35

36

35

34

34

35

65

155

110

108

106

101

91

Jan.

95

91

77

71

64

60

58

5b

54

52

52

51

50

49

49

50

45

45

44

43

42

42

40

38

38

37

37

37

35

34

34

Feb.

34

34

33

33

33

33

32

32

32

30

29

29

29

28

28

28

28

28

28

28

28

28

27

27

27

27

26

26

.

-

Month

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

Calendar year 1946 ......................

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

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

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

Water year 1946 47 ......................

Mar.

25

25

25

- 25

25

25

25

25

25

25

24

24

23

23

23

23

23

23

23

23

24

23

23

23

22

22

22

22

23

23

23

Apr.

23

22

23

23

23

23

23

23

23

23

23

23

23

22

22

24

22

22

22

22

22

23

23

23

23

25

23

22

22

22

-

Secondfoot-days

362

686

1,615

8,574

392

302.7

8,645.7

May

23

22

22

21

22

22

22

22

22

22

22

21

21

21

21

21

21

20

20

20

20

20

19

19

19

19

19

19

18

19

18

Maximum

14

42

155

155

95

34

25

18

12

11

155

June

18

18

18

18

18

18

17

17

17

17

17

17

16

15

16

16

16

15

15

16

15

15

15

15

15

15

15

14

14

14

July

14

14

13

12

10

10

14

14

14

13

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

12

12

12

12

12

12

Minimum

1011

34

10

34

26

22

22

14

11

8.9

8.9

Aug.

12

12

12

12

12

12

12

12

12

12

11

12

12

12

11

11

11

11

11

12

12

12

12

12

11

11

12

12

11

11

11

Mean

11.6

22.9

52.1

23.5

50.6

29.5

23.6

22.7

20.5

16.1

12.6

11.6

10.1

23.7

Sept.

11

10

10

10

10

10

10

10

1111

1111

10

10

10

10

11

10

11

10

10

10

9.8

9.6

9.7

9.6

9.3

9.3

8.9

9.5

Runoff in 

ao re-feet

718

1,360

3,200

17,000

3,110

1,640

1,450

1,350

1,260

956

778

716

600

17,140
SANTA ANA RIVER BASIN 87

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

Location.- At Southern California Edison Co.'s Sierra power plant, lat. 34°12'45", long. 

 117 U 4U'15", in NWtSEt sec. 36, T. 2 N. , R. 8 W. , 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 1947. 

Average discharge.- 30 years, 13.2 second-feet.

Remarks . - Conduit diverts water from San Antonio Creek in SE-J- 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 computed from record 

of kilowatt output of Sierra power plant.

Cooperation.- Records furnished ty Southern California Edison Co.

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.

10

11

12

11

11

11

11

11

11

11

11

11

11

11

11

11

12

12

11

10

10

11

10

10

10

10

11

11

10

10

10

Nov.

11

10

1011

11

10

10

10

10

10

11

11

13

15

14

13

13

13

13

20

20

20

21

21

22

22

22

22

22

22

-

Dec.

22

22

22

22

22

21

21

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

0

21

21

21

21

21

Jan.

21

22

21

222'2

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

23

23

23

23

23

Feb.

23

23

23

23

23

23

23

23

23

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

_

_

-

Month

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

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

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

Calendar year 1946 ............... ......

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

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

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

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

Hay

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

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

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

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

Water year 1946-47 ......................

Mar.

21

21

21

21

21

21

21

21

21

21

20

20

20

20

20

20

20

20

20

20

20

20

20

20

19

19

19

19

20

20

20

Apr.

20

19

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

22

21

20

21

21

Secondfoot-days

334

453

653

6,074

685

625

626

604

594

448

362 . 6

330

286.1

6,000.7

May

21

20

20

20

20

20

20

20

20

20

20

20

£0

20

20

£0

20

19

19

19

18

18

18

18

18

18

18

18

17

18

17

Maximum

12

22

22

23

g7

23

21

22

21

17

13

11

10

23

June

17

17

17

17

16

16

15

15

16

16

16

16

15

14

15

15

15

14

14

15

14

14

14

14

14

14

14

13

13

13

Minimum

10

10

0

0

21

22

19

19

17

13

9.

10

8.

0

July

13

13

12

11

9.8

9.8

13

13

13

12

12

12

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

Aug.

11

11

11

11

11

11

11

11

11

11

10

11

11

11

10

10

10

10

1011

11111111

10

1011

11

10

10

10

Mean

10.8

15.1

21.1

16.6

22.1

22.3

20! £

20.1

19.2

14.9

3 11.7

10.6

I 9.54

16.4

Sept.

10

9.8

9.8

9.8

9,8

9.8

9.8

9.8

10

10

10

9.8

9.5

9.8

9.2

9.8

10

9.5

9.8

9.8

9.8

9.5

9.2

9.0

9.0

9.0

8.7

8.7

8.4

9.0

-

Runoff in 

acre- feet

662

899

1,300

12,050

1,360

1,240

1,240

1,200

1,180

889

719

655

567

11,910
88 SANTA ANA RIVER BASIN

Santiago Creek near Villa Park, Calif.

Location.- Water-stage recorder and concrete control, lat. 33°49'10", long. 117°46'30", 

in SW-p sec. 13, T. 4 S., R. 9W., 0.6 mile downstream from diversion dam of Serrano 

and Carpenter Irrigation Districts and 1.8 miles northeast of Villa Park. Altitude 

of gage, about 420 feet.

Drainage area.- 83.8 square miles.

Records available.- June 1920 to September 1947.

Average discharge.- 27 years, 9.27 second-feet.

Extremes.- Maximum discharge during year, 40 second-feet Nov. 23 (gage height, 1.97 

feet); no flow during several months.

1920-47: Maximum discharge, 11,000 second-feet Feb. 16, 1927 (gage height, 8.4 

feet), by slope-area method; no flow during several months each year.

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

fair. Diversions above station by Irvine Co. and Serrano and Carpenter Irrigation 

Districts. Flow completely regulated by Santiago Reservoir.

Cooperation.- Five discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2

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.

o

0

0

0

0

0

0

o

0

0

0

0

0

0

0

1-

o

0

o

0

0

0

0

0 

0

0

0

NOV.

0 

0

0

0

e.Ol

1 «»1.7

4.4

10

2.1

.8

.4 

.1

a.l

a8

a.Z

a.l 

9.7 

5.0

.4

.1

^

\ e.06

'

-

Dec.

> eO.05

.3

1.1

3.4

7.7

1.4 

.2

.08

-

Jan.

I eO . 03

. 1

.5

.4

.1

.1

.1

.1

.5

.6

.4

.2

.1

.1

.1

.1 

.1

.1

.2

.3

.2 

.1 

.4

.7

.1

.1

a. 2 

a. 3

a. 3

a. 3

Feb.

aO.3 

a. 3

a. 2

.2

.2

.2

.2

.2

.3

.5

.3

.3

.3

.3

.3

.3

.7 

1.0

1.0

.6

.1

e.O3

_

-

Month

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

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

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

September. .'................................

Water year 1946-47 ......................

Mar.

1 eO.O2

1

\ e.Ol

O

0

0

0

o

0 

0

0

.05

.4

.2

} e.Ol

0

0

0

I .01

0

0

Apr.

0 

0

0

0

0

0

0

0

0

0

) °

' 0

0

o

0 

0

0

o

0

0 

0

0

0

0

0

0 

0

0-

Secondfoot-days

0.05

45.33

15.41

131.31

6.82

8.01

.82

.06

2.49

0

0

0

0

78.99

May

0 

0

0

o

0

0

o

o

0

.2

3

3

4

3

5

.3

) e.03

1

V e.Ol

1

\ e.02

\

\ e.Ol

0

0

0

Maximum

10

7.7

45

.6

1.0

.4

.5

0

O

0

0

10

June

Minimum

0

0

0

_

0

0

0

0

0

0

0

0

July Aug.

Mean

0.002

1.51

.497

.360

.220

.23;

.026

.002

.080

0

0

0

0

.216

Sept.

Runoff in 

acre feet

0.1

90

31

261

14

16

1.6

.1

4.9

0

0

0

0

158

a No gage-height record; discharge computed on basis of 1 discharge measurement, recorded 

stage, interpolation, and comparison with records for station at Santa Ana. 

e Daily discharge less than 0.1 second-foot.
SANTA ANA RIVER BASIN 8 

Santiago Creek at Santa Ana, Calif.

Location.- Water-stage recorder, lat. 33 0 46'00", long. 117°52'45", in Santiago de Santa 

Ana Grant, 2,000 feet upstream from mouth, at end of Baker Street, Santa Ana, Orange 

County, Altitude of gage, Eibout 120 feet.

Records available.- January 1929 to September 1947. 

Average discharge.- 18 years, ?.£>0 second-feet.

Extremes.- Maximum discharge dur'.ng year, 186 second-feet Nov. 14 (gage height, 2.80 

feet); no flow during most of year.

1929-47: Maximum discharge, 4,400 second-feet Mar. 2, 1938 (gage height, 7.40 

feet), from rating curve extended above 1,200 second-feet by logarithmic plotting; 

no flow during most of each year.

Remarks.- Records fair. Diversions above station by Irvine Co. and Serrano and Carpenter Irrigation Districts, During each winter season, some water originally diverted from Santa Ana River by Santa Ana Valley Irrigation Co.'s canal is occasionally wasted into Santiago Creek 3 miles above this station.

Cooperation.- Twenty-six discharge measurements furnished <by Orange County Flood 

Control District, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, water year October 1946 tc September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

o

0

0

o

0

o

o

0

0

0

o

.9

7.0

38

0

0

O

0

1.5

14

14

4.6

3.8

0

0

0

0

0

0

0

-

Dec.

0

0

o

0

0

0

0

0

0

5.0

4.2

o

0

0

o

o

0

0

0

0

0

0

0

0

4.7

4.8

2.2

O

0

o

.2

Jan.

7.6

3.4

1.8

.7

2.1

2.5

1.1

2.6

2.9

4.2

S.I

6.1

5.7

5.7

s.e

2.4

10

S.4

.1

.9

1.0

2.2

1.4

1.4

1.1

O

0

1.1

0

1.1

2.6

Feb.

2.8

2.1

2.8

2.1

2.0

.8

.2

O

0

1.8

3.6

1.9

.8

2.4

.1

0

.7

0

0

3.8

3.8

.5

0

0

0

0

1.8

.9

_

_

-

Month

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

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

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

Calendar year 194S ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ............... ......

Mar.

4.8

.6

0

.2

0

O

0

o

o

0

0

0

o

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

o

Apr.

Secondfoot-days

0

83.8

21.1

242.8

90.2

34.9

5.S

0

0

0

0

0

0

235. S

May

Maximum

o

38

5.0

38

10

3.8

4.8

O

0

0

0

0

0

38

June

Minimum

0

0

0

o

0

0

0

o

0

0

0

0

0

0

July Aug.

Mean

o

2.79

.68

.67

2.91

1.25

.18

0

0

0

0

0

O

.65

Sept.

Runoff in 

acre- feet

0

166

42

482

179

69

11

0

0

0

0

0

0

467
90 SAN GABRIEL RIVER BASIN

East Fork San Gabriel River near Camp Bonita, Calif.

Location.- Water-stage recorder, lat. 34 0 14'12", long. 117°48'30", in SE£ sec. 22, T. 2 

N., h. 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 1947. 

Average discharge.- 14 years (1933-47), 94.0 second-feet.

Extremes.- Maximum discharge during year, 1,900 second-feet Dec. 26 (gage height, 10.40 

reetj; minimum daily, 13 second-feet Sept. 1, 2, 13-16, 27-30.

1932-47: Maximum discharge, 46,000 second-feet Mar. 2, 1938, from rating curve 

extended above 21,300 second-feet by logarithmic plotting (computed by Geological 

Survey); minimum, 1.5 second-feet Oct. 1, 1934.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. &. ttedger, chief engineer.

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.

71

44

34

32

29

28

25

24

23

22

22

23

24

25

27

24

24

24

23

22

22

22

21

20

19

28

29

29

28

26

Nov.

26

25

24

24

24

23

23

27

26

26

31

73

261

122

79

64

61

59

59

504

314

171

516

371

269

204

174

166

158

144

-

Dec.

134

129

124

119

117

134

124

115

106

98

94

89

89

89

87

83

81

75

74

72

72

72

72

81

433

1,160

723

528

452

376

301

Jan.

250

240

225

210

196

1S7

178

174

161

150

150

146

135

132

125

118

118

us

115

109

106

103

100

100

97

94

91

113

91

88

88

Feb.

83

80

74

74

74

74

71

74

80

77

69

69

69

69

66

63

66

69

66

66

63

63

60

60

60

60

60

60

.

_

-

Month

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

Calendar year 1946 ......................

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

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

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

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

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

Water year 1946-47 ......................

Mar.

58

58

58

60

58

55

55

55

53

50

50

. 50

50

50

50

50

50

55

55

58

71

69

63

58

55

50

53

71

69

66

60

Apr.

58

60

60

58

50

53

50

50

53

55

55

50

47

53

53

53

58

58

58

53

58

58

55

55

53

55

53

50

50

47

-

Secondfoot-days

6,303

30,637

416

24,353

May

47

47

47

47

47

47

47

47

45

42

42

42

42

42

40

35

35

35

35

35

35

35

35

32

35

35

40

3T

37

35

35

Maximum

1,160

1,160

250

17

1,160

June

35

35

37

32

30

32

30

27

30

30

27

27

25

20

25

27

27

25

25

27

25

25

25

2323 

23

23

25

25

23

Minimum

19

23

72

19

88

32

13

13

July

23

23

20

20

20

20

20

18

18

18

18

18

20

20

20

18

18

18

18

18

18

18

18

18

18

18

15

15

15

15

15

Aug.

18

18

18

15

15

15

15

18

20

20

18

18

17

17

17

17

17

17

17

17

17

17

16

16

16

16

15

15

14

14

Mean

203

83.9

139

fiR ^

13.9

66.7

Sept.

13

13

14

14

14

14

14

14

14

13

17

16

14

14

14

14

Runoff in 

acre-feet

12,500

60,780

1 130

825

48,300
SAN GABRIEL RIVER BASIN 91

San Cialiriel River near Azusa, Calif.

Location.- Water-stage recorder, lat. 34°10"10", long. 117°53'16", in SW£ sec. 13, 

T. IN., R. 10 W., 1 mile downstream from Morris Dam and 3 miles northeast of 

Azusa. Altitude of gage, about 870 feet.

Drainage area.- 211 square miles.

Records available.- 1894 to September 1947.

Average di seharge.- 51 years (18E(6-1947), 117 second-feet. Average combined discharge 

oi river ana diversions, adjusted for storage and evaporation in Morris Reservoir 

and San Gabriel River flood-control reservoirs 1 and 2, 52 years (1895-1947), 167 

second-feet.

Extremes.-' Maximum discharge durjng-year, 2,980 second-feet Dec. 31 (gage height, 4.87 

feet); no flow during several months.

1894-1947: Maximum discharge, 65,700 second-feet Map. 2, 1938, by computation 

of flow over spillway at Morrj s Dam; no flow for several months in each year 1894- 

1936, 1940, 1941, 1947.

Remarks.- Records good. Plow regulated by San Gabriel flood-control reservoirs 1 and 

2, and by Morris Reservoir of Metropolitan Water District of Southern California. 

Azusa Canal (formerly power csjial of Southern California Edison Co.) diverts above 

high-water line of Morris Reservoir at point about 3 miles above station.

Cooperation.- Twenty-four discharge measurements furnished by Los Angeles County 

Flood Control District, through H. E. Hedger, chief engineer.

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.

O.5

.3

.1

0

0

0

0

0

0

0

o

o

0

o

0

o

0

o

0

0

0

0

0

0

0

o

0

0

0

o

0

Nov.

0

0

0

o

0

0

o

0

0

0

0

2.2

38

43

43

43

43

47

50

60

51

50

54

50

50

65

612

589

498

468

Dec.

468

468

468

468

468

437

421

421

421

421

421

421

426

426

426

372

44

44

43

43

43

48

52

52

62

64

64

1,970

2,920

2,92O

2,930

Jan.

1,500

54

525'2

5:2

5S

57

585'i3

58

58

58

57

53

5S

56

56

57

57

513

56

56

56

54

54

54

54

54

54

54

3!>

Month

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

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

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

Calendar year 1946 ............

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

February .....................:...

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

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

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

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

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

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

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

Water year 1946-47 ............

Feb.

1.7

.8

.5

.4

a. 2

a.l

a.l

a.l

5.3

51

52

52

52

52

52

52

52

52

54

56

56

54,

54

66

73

73

73

73

_

_

-

Secondfobt-days

0.

2,856.

18,252:

42,687.

3,149

1,108.

1,900.

0

O

O

64.

O

O

27,330.

Mar.

73

71

71

70

70

70

71

73

73

73

73

73

73

73

73

73

73

75

75

75

71

66

66

66

66

66

38

7.2

1.7

1.0

.2

Apr.

Maximum

3 0.5

2 612

2,930

3 2,930

1,500

2 73

1 75

0

0

0

I . 29

0

0

3 2,930

May

Minimum

0

O

43

0

39

.1

.2

0

0

0

0

0

0

0

June

Mean

0.03

95.2

589

1.17

\DZ

39 . 6

61 . 3

O

O

O

2.08

0

0

74.9

July

0

0

O

0

0

o

o

o

0

o

o

o

0

0

14

29

18

2.6

.8

O

0

0

0

O

0

0

0

0

0

o

0

Aug. Sept.

Runoff in acre-feet

San Gabriel 

River

1.8

5,670

36,200

84,660

6,250

2,200

3,770

0

0

0

128

0

o

54,220

San Gabriel River 

and Azusa Canalt

2, 910

22,950

31,050

130,100

18,150

8,320

7,130

5,770

4,470

3,160

2,190

1,770

1,500

109,400

t Combined runoff of river and A::usa Canal, adjusted for storage and evaporation in Morris Reservoir and San Gabriel River flood-control reservoirs 1 and 2 using record furnished by Metropolitan 

Water District of Southern Califomie . 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 interpolated, or computed on basis of 1 discharge measurement.
92 SAN GABRIEL RIVER BASIN

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

Location.- Water-stage recorder, lat. 34°06'40", long. 117°58 I 20", at stilling basin 

of outlet of Santa Fe Dam, 0.3 mile north of Arrow Highway and 1.5 miles north of 

Baldwin Park, Los Angeles County. Datum of gage is 400.00 feet above mean sea level 

(levels by Corps of Engineers).

Drainage area.- 231 square miles.

Records available.- October 1942 to September 1947.

Extremes.- Maximum discharge during year, 2,580 second-feet Dec. 31 (gage-height, 

13.35 feet); no flow most of year.

1942-47: Maximum discharge, 6,700 second-feet Jan. 24, 1943; no flow during 

several months of each year.

Remarks.- Records excellent above 150 second-feet, and fair below. -Flow regulated by 

San Gabriel flood-control reservoirs 1 and 2, by Morris Reservoir of Metropolitan 

Water District of Southern California, and during high flow by Santa Fe flood-control 

basin. Canal diversions upstream. Records include 12,200 acre-feet diverted to 

Rio Hondo as shown in monthly table.

Cooperation.- Gage-height record furnished by Corps of Engineers, and nine discharge 

measurements and records of diversion to Rio Hondo furnished by Los Angeles County 

Flood Control District, through H. E. Hedger, chief engineer.

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. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.5

0

o

0

0

152

50

13

35

30

13

.6

388

449

414

398

-

Dec.

402

411

411

421

426

412

380

375

370

366

362

362

362

362

362

356

48

20

19

18

15

15

16

16

70

259

193

1,490

2,550

2,540

2,540

Jan.

1,560

8.8

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Month

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

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

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

Calendar year 1946 .......... .

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

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

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

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

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

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

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

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

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

Water year 1946-47 ............

Feb.

Secondfoot-days

0

1,946.1

15,949

29,457.6

1,568.8

0

0

0

0

0

0

0

O

19,463,9

Mar. Apr.

Maximum

0

449

2,550

2,550

1,560

0

0

0

0

0

0

0

0

2,550

May

Minimum

0

0

15

0

0

0

0

0

O

0

0

0

0

0

June

Mean

0

64.9

514

80.7

50.6

0

0

0

0

0

0

O

0

53.3

July Aug. Sept.

Runoff In acre-feet

San Gabriel Diversion to 

River . Rio Hondo

0 0

3,860 3,160

31,630 9,040

58,420 34,380

3,110 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

38,600 12,200
,3AN GABRIEL RIVER BASIN 93

San Gabriel River at Pico, Calif.

Location.- Water-stage recorder, lat. 34°00'20", long. 118°04 I 05", in Paso De Bartolo 

Grant, at Beverly Boulevard Bridge, 0.5 mile east of Pico, Los Angeles County. Altitude of gage, about 180 feet.

Records available.- October 1928 to September 1947. 

Average discharge.- 19 years, 58.0 second-feet.

Extremes.- Maximum discharge during year, 3,240 second-feet Dec. 30 (gage height, 6.25 

feet); no flow for several periods.

1928-47: Maximum discharge, 22,700 second-feet Mar. 2, 1938; no flow for periods 

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 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.

o

o

0

0

0

0

0

0

0

0

0

o

o

o

0

0

0

0

0

0

0

0

0

0

0

0

0

1.0

4.7

5.3

4.7

Nov.

5.3

5.O

5.6

5.6

5.0

4.7

4.7

5.3

6.5

8.7

13

67

345

198

77

68

68

62

66

201

112

68

299

136

85

79

77

70

66

68

-

Dec.

68

68

72

83

104

195

SO

77

75

75

77

74

75

77

75

75

74

66

64

64

64

64

64

66

138

494

204

1,330

2,810

2,780

2,560

Jan.

1,200

78

79

77

75

77

75

75

75

74

77

79

79

77

79

81

85

87

89

87

89

f!3

611

85

85

85

«1

101

85''9

HI

Feb.

81

79

81

81

79

81

79

81

89

89

89

87

83

83

83

85

85

83

81

81

77

79

77

74

72

66

68

66

_

-

-

Month

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

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

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

Calendar year 1946 ......................

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

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

Maroh....... ...............................

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

64

66

66

68

79

75

70

70

69

69

69

66

64

62

60

60

60

48

45

45

44

44

45

45

45

44

34

38

36

36

34

Apr.

33

30

30

32

29

30

30

32

32

32

29

22

15

11

8.7

8.2

7.6

8.2

- 8.2

9.8

11

9.8

9.8

9.8

9.8

8.2

10

9.2

8.2

8.2

-

Seoondfoot-days

15.7

2,281.4

12,192

24,700.7

3,640

2,239

1,720

531.7

217.0

58.7

4.6

0

0

22,900.1

May

7.1

2.6

.5

2.4

2.3

O

1.5

2.0

1.4

4.4

6.5

4.4

4.4

4.7

8.2

8.7

8.2

8.7

10

10

11

12

11

11

11

10

11

10

10

11

11

Maximum

5.3

345

2,810

2,810

1,200

89

79

33

12

10

2.9

0

0

2,810

June

1O

8.7

7.6

6.2

4.1

3.8

4.7

5.3

5.0

2.4

0

0

0

0

0

0

O

0

0

0

0

0

0

.3

.1

0

0

.2

.3

0

-

Minimum

0

4.7

64

0

74

66

34

7.6

0

0

0

0

0

0

July

0

0

0

0

0

2.9

1.7

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

 0

0

0

0

0

0

Aug.

Mean

0.51

76.0

393

67.7

117

80.0

55.5

17.7

7.00

1.96

.15

0

0

62.7

Sept.

Runoff in 

acre-feet

31

4,530

24,180

49,000

7,220

4,440

3,410

1,050

430

116

9.1

0

0

45,420
94 SAN GABRIEL RIVER BASIN

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

Location.- Water-stage recorder, lat. 33°48'40", long. 118°05 I 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 1947 in reports of Geological Survey. 

1927-36 in files of Los Angeles County Flood Control District.

Average discharge.- 20 years, 35.3 second-feet.

Extremes.- Maximum discharge during year, 2,740 second-feet Jan. 1 (gage height, 9.40 

feet); no flow during several months.

1936-47: Maximum discharge, 27,300 second-feet (estimated) Mar. 2, 1938; no flow 

during several months of each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 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. Nov.

0

0

0

o

0

0

0

o

0

0

0

0

0

o

.5

0

0

0

0

0

2.4

0

30

42

0

0

0

0

O

0

-

Dec.

0

o

0

0

o

0

24

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

420

78

735

2,330

2,340

2,520

Jan.

2,100

312

80

66

53

44

34

24

17

15

16

17

20

9.7

11

11

15

13

13

17

13

15

11

13

16

8.1

9.2

17

29

19

16

Feb.

12

6.0

3.6

9.2

10

10

12

15

20

30

19

20

18

17

14

16

16

15

14

14

13

12

13

11

11

10

12

11

_

_

-

Month

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

Calendar year 1946 ......................

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

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

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

Water year 1946-47 ......................

Mar.

3 ^

6.0

7.6

9.7

8.6

21

15

12

16

14

10

9.2

8.1

6.6

7.1

2.5

4.0

2.0

.5

0

2.0

5.5

4.0

4.0

2.0

0

0

0

0

0

0

Apr.

Seccndfcct-days

8,447

9,927.7

184.0

O

12,148.7

May

Maximum

42

2,520

2,520

2,100

30

21

0

0

0

2,520

June

Minimum

0

0

0

0

8.1

6.0

0

O

0

o

o

0

July Aug.

Mean

0

2.50

272

27.2

98.5

13.9

5.94

0

0

O

0

33.3

Sept.

Runoff in 

acre- feet

0

149

16,750

19,690

6,060

771

365

0

0

0

0

0

0

24,100
SAN GABRIEL RIVER BASIN 95

West Fork San Gabriel River at Camp Rincon, Calif.

Location.- Water-stage recorder, lat. 34°14'30", long. 117 C 51'50", near center of sec. 

19, T. 2 N., R. 9 W., 0.2 mile upstream from Camp Rincon, O.S mile downstream from 

North Fork San Gabriel River, and 6 miles downstream from San Gabriel dam No. 2.

Drainage area.- 102'square miles.

Records available.- October 1927 to September 1947.

Average discharge.- 20 years, 8C.7 second-feet.

Extremes.- Maximum discharge during year, 4,150 second-feet Dec. 26 (gage height, 11.76 

feet); minimum, 6.3 second-feet Sept. 29.

1927-47: Maximum discharge, 34,000 second-feet (estimated) Mar. 2, 1938; no flow 

at times in 1928, 1929.

Remarks.- Flow partly regulated by San Gabriel dam No. 2, 6 miles above station.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. .K. Meager, c'hief engineer.

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.

32

29

22

25

18

16

15

15

14

14

14

14

14

14

14

18

17

15

15

15

15

15

14

14

15

15

21

25

23

21

21

Nov.

19

17

15

15

15

15

15

20

18

17

29

231

680

250

159

128

114

103

93

754

385

374

970

790

601

434

203

178

156

146

-

Dec.

134

121

116

112

121

156

144

132

115

87

84

80

78

76

74

71

70

68

66

60

51

50

50

62

1,000

2,270

1,390

1,030

906

551

365

Jan.

329

306

287

270

353

296

197

186

180

172

159

155

152

145

138

132

129

127

125

123

122

121

119

113

108

103

98

121

115

106

101

Feb.

98

96

94

95

95

93

91

89

97

97

91

86

80

76

74

76

76

78

76

76

73

71

68

66

66

68

68

68

-

-

-

Month

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

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

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

Calendar year 1946 ............

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

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

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

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

Uav May. .............................

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

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

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

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

Water year 1946-47 ...............

Mar.

66

65

66

68

65

62

60

58

58

57

56

54

52

52

51

51

50

50

52

58

70

63

60

56

52

51

51

70

63

58

56

Apr.

57

58

63

60

57

54

52

51

50

48

46

44

42

41

39

39

39

41

41

39

41

42

41

41

39

41

42

42

41

39

-

Seoondfoot-days

549

6,944

9,690

' 34,346.0

2 282

i|aoi

1,370

919

637

376.4

299. 5

246*9

30,312.8

May

38

35

33

30

30

30

32

32

32

33

33

30

30

33

33

32

29

27

26

26

27

27

27

26

25

25

27

29

27

27

28

Maximum

32

97O

2,270

2,270

353

98

70

38 

27

17

11

10

2,270

June

27

27

27

26

27

27

26

26

26

25

23

21

20

20

19

19

18

18

19

20

20

19

18

17

17

17

17

17

17

17

Minimum

14

15

50

8.0

66

50

39

25

17

9 . 2

8 l'.02

7.0

July

17

15

15

14

14

14

14

13

13

13

13

13

12

12

12

12

12

12

12I'l

11

11

11

11

11

10

10

10

10

9.2

9.2

Aug.

9.2

9.7

9.2

8.9

8 9

8.9

8.9

9.7

10

10

10

9.7

9.7

9 2

9.2

9 2

9.2

8.9

8 9

9.7

10

11

11

11

10

11

11

10

10

9.2

8.2

Mean

17 7

231

313

94.1

Ol c:

58 1

45.7

29.6 

21.2

12.1

9 . 66

8.23

83.0

Sept.

7.6

7.6

7.6

7.6

7.6

7.6

7.9

8.2

8.6

8.9

8.9

8.6

8 2

8.2

7.9

7.9

8 9

10

9.7

8.9

9 2

8, 9

8.6

8.2

8.2

7.9

7.6

7 3

7 0

7.6

Runoff in 

acre-feet

1,090

13,770

1 " 9 * P?O u v

68,110

10,310

4 530

3,570

2,720

1J260

747

594

490

60,120
96 SAN GABRIEL RIVER BASIN

Rogers Creek near Azusa, Calif.

Location.- Water-stage recorder, lat. 340 09'55", long. 117°54'20", in NWfcNWi sec. 23, T. 

IN., K. 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 

iyj.y to aeptemoer 1947.

Average discharge.- 30 years, 3 V 4-1 second-feet.

Extremes.- Maximum discharge during year, 271 second-feet Nov. 20 (gage height, 5.35 

reet); no flow at times.

1917-47: Maximum discharge, about 2,600 second-feet Apr. 7, 1926; no flow during 

part of each year.

Remarks.- Records good. One small diversion above station for irrigation.

Cooperation.- Thirteen discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.8 

al.2 

al.O 

a. 8 

a. 6

a. 5 

a. 4 

a. 3 

.2 

.2

.2 

.1 

.1 

.1 

.2

.3 

.3 

.2 

.2

.1

.1 

.1 

.2 

.2 

.2

.2 

1.0 

1.2 

.7 

.5 

.5

Nov.

0.4 

.3 

.3 

.3 

.3

.3 

.3 

.8 

.5 

.4

1.3 

15 

28 

12 

6.5

4.7 

3.9 

3.3 

2.9 

91

21 

12 

24 

18 

11

8.6 

7.0 

5.9 

5.4 

5.0

Dec.

4.5 

4.1 

3.'5 

3.1 

3.0

3.7 

3.5 

3.1 

3.1 

3.0

2.8 

2.7 

2.7 

2.5 

2.4

2.2 

2.2 

1.9 

1.8 

1.8

1.8 

1.8 

1.8 

2.2

31

94 

70 

46 

28 

22 

18

Jan.

16 

13 

12 

11 

10

9.3 

8.6 

7.9 

7.6 

6.7

6.5 

5.9 

5.7 

5.4 

5.0

4.7 

4.7 

4.5 

.3 

.3

.3 

.3 

.1 

3.9 

3.7

3.7 

3.5 

7.0 

5.0 

4.3 

4.1

Feb.

3.7 

3.5 

3.3 

3.1 

3.0

3.0 

3.0 

3.0 

3.3 

3.5

3.3 

3.0 

3.0 

3.0 

2.8

2.8 

7.3 

6.3 

4.3 

3.9

3.7 

3.5 

3.3 

3.1 

3.1

3.0 

3.0 

3.0

Mcnth

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

ffa

mber. ..................................

 her...................... .............

lendar year 1946 ......................

ary

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

St.... .................................

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

ter year 1946-47 ......................

Peak discharge.- Nov. 20 (11:30 a.m.) 271

(ll a.m.; 104 sec. -ft. 

a No gage-height record; discharge compute 

d Doubtful gage -height record; discharge i 

e Daily discharge less than O.I sec. -ft.

Mar.

2.8 

2.8 

2.8 

2.8 

3.0

2.7 

2.5 

2.5 

2.5 

2.5

2.5 

2.4 

2.2 

2.1 

2.1

2.1 

1.9 

1.9 

1.9 

1.9

2:2 

2.1 

2.1 

2.1 

1.9

1.7 

1.7 

2.8 

2.2 

1.9 

1.9

Apr.

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.8 

1.8 

.7 

.7

.6 

.4 

.4 

.2 

.8

.8 

.8 

1.0 

1.0 

1.0

1.1 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.0

May

0.8 

.7 

.6 

.7 

.7

.6 

.7 

.7 

.7 

.7

.8 

.7 

.7 

.7 

.9

.8 

.7 

.7 

.6 

.7

.7 

.8 

1.0 

d.8 

d.7

d.7 

.7 

.7 

.6 

.7 

.9

June

1.0 

.8 

.7 

.7 

.7

.7 

.7 

.6 

.4 

.3

.3 

.2

:\

.2

.2 

.1 

.1

:l

 t

;| Is

.3 

.2

|

fooW^s "a*^ MinilHU»

14.7 2.8 0.1 

290.4 91 .3 

374.2 94 1.8

1,154.58 94 0

201.0 16 3.5 

97.8 7.3 2.8 

70.5 3.0 1.7 

41.1 1.9 .8 

22.5 1.0 .6 

10.5 1.0 .1 

l.OO - O 

0 0 0 

0 0 0

1,123.70 94 o

July

>e0.05

> o

Aug. Sept.

u.,_ Runoff in 

*ean acre-feet

0.47 29 

9.68 576 

12.1 742

3.16 2,290

6.48 399 

3.49 194 

2.27 140 

1.37 82 

.73 45 

.35 21 

.032 2.0 

0 0 

0 0

3.08 2,230

sec. -ft.; Dec. 26 (12:30 a.m.) 22O sec. -ft.; DeQ. 27

d on basis of probable recession, 

nterpolated.
SAN GABRIEL RIVER BASIN

Fish Creek near Duarte, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°10"00", long. 117°55'25", 

in SW^SW^ sec. 15, T. 1N..R. 10 W., 0.8 mile upstream from mouth of canyon and 

3 miles northeast of Duarte. Altitude of gage, about l.OOOrfeet (from topographic 

map).

Drainage area.- 6.5 square miles.

Records available.- July to September 1916, July 1917 to September 1947.

Average discharge.- 30 years (1917-47), 4.57 second-feet.

Extremes.- Maximum discharge during year, 400 second-feet Dec. 26 (gage height, 3.22 

feet); minimum daily, 0.1 second-foot several periods in July, August, and September. 

1916-47: Maximum discharge, about 2,180 second-feet Apr. 4, 1925; no flow during 

periods in 1919-21, 1924, 1929-30.

Remarks.- Records good. No diversion or regulation above station.

Cooperation.- Twenty discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

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.

5.1 

1.1 

.7 

.8 

.7

.7 

.6 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.6

1.1 

.8 

.8 

.8 

.7

.7 

.7 

.7 

.6 

.5

.5 

1.6

1.7 

1.2 

1.0 

.9

Nov.

0.8 

d.7 

.7 

.7 

.7

.7 

.7 

1.1 

.9 

.8

1.9 

19 

43 

13 

7.0

4.7 

3.2 

2.5 

2.2 

116

26 

11 

31 

24 

15

10 

8.7 

6.5 

5.5 

5.1

Dec.

4.9 

4.6 

4.2 

3.9 

3.8

4.4 

3.8 

3.2 

2.9 

2.6

2.5 

2.6 

2.6 

2.6 

2.6

2.6 

2.7 

2.7 

2.6 

2.5

2.3 

2.2 

2.3 

3.2 

71

140 

84 

47 

31 

26 

20

Jan.

17 

14 

13 

12 

11

10 

9.2 

8.2 

7.8 

7.3

6.9 

6.5 

6.5 

6.1 

6.1

5.9 

5.8 

5.8 

5.7 

5.5

5.3 

4.9 

4.6 

4.4 

4.1

4.1 

3.9 

9.4 

5.7 

5.1 

4.4

Feb.

4.1 

3.8 

3.5 

3.5 

3.3

3.3 

3.2 

3.2 

4.2 

4.1

3.6 

3.5 

3.3 

3.3 

3.3

3.3 

7.0 

7,2 

5.1 

4.2

3.9 

3.8 

3.5 

3.3 

3.3

3.3 

3.3 

3.3

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

nber. ...................................

lendar year 1946 

ary

h. .....................................

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

St. ....................................

ter year 1946-47 ...............

Mar.

3.2 

3.2 

3.3 

3.4 

3.7

3.2

3.0 

3.0

2.9 

2.8 

2.7 

2.7 

2.8

2.8 

2.8- 

3.0 

3.1 

3.1

3.0 

2.9 

2.8 

2.6 

2.4

2.3 

2.4 

3.8 

2.8 

2.7 

2.7

Apr.

Secondfoot-days

28.1 

363.1 

493.3

1,571.2

226.2 

107.7 

91.6 

62.5 

41.5 

31.6 

9.1 

5.5 

4.8

1,465.0

2.8 

2.9 

2.9 

2.7 

2.5

2.2

2.1 

2.1

2.0 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.9 

2.0 

1.9

2.0 

2.2 

2.0 

1.9 

1.9

1.9 

1.9 

1.9 

1.8 

1.7

May

1.6 

1.4 

1.4 

1.4 

1.4

1.5

1.4 

1.5

1.5 

1.4 

1.3 

1.4 

1.5

1.4 

1.3 

1.3 

1.2 

1.2

1.2 

1.3 

1.3 

1.2 

1.1

1.0 

1.4 

1.3 

1.1 

1.3 

1.4

June

1.3 

1.3 

1.3 

1.3 

1.3

1.2

1.3 

1.3

1.2 

1.1 

1.0 

1.0 

.9

.9 

.8 

.9 

.9 

1.0

1.0 

.9 

.9 

.9

1.0

1.0 

.9 

.9 

.9 

.8

Maximum Minimum

5.1 0.5 

116 .7 

140 2.2

140 .1

17 3.9 

7.2 3.2 

3.7 2.3 

2.9 1.7 

1.6 1.0 

1.3 .8 

.7 .1 

.3 .1 

.4 .1

140 .1

July

0.7 

.6

.5 

.4 

.4

.4

.3 

.3

.3 

.4 

.4

.3 

.3

.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.1 

.1 

.1 

.1 

.1

Aug.

0.1 

.1 

.1 

.1

.1

.1

.1

.2

.2 

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.2 

.2 

.2

Sept.

aO.2 

a.l 

a.l

.1 

.1

.1

.1 

.3

.3 

.2 

.1 

.1 

.1

.1 

.2 

.4 

.4 

.2

.2 

.2 

.2 

.2

.1

.1 

.1 

.1 

.1 

.1

Mean Runoff in Mean acre-feet

0.91 56 

12.1 720 

15.9 978

4.30 3,120

7 . 30 449 

3.85 214 

2.95 182 

2.08 124 

1.34 82 

1.05 63 

.29 18 

.18 11 

.16 9.5

4.01 2,910

Peak discharge.- Nov. 13 (1 p.m.) 110 sec. -ft.; Nov. 20 (11:30 a.m.) 380 sec. -ft.; Dec. 26

(12:15 a.m.) 400 sec.-ft.; Dec. 27 (9:30 a.m.) 150 sec.-ft. 

a No gage-height record; discharge interpolated, 

d Doubtful gage-height record; discharge interpolated.
98 SAN GABRIEL RIVER BASIN

San Dlmas Creek near San Dlmas, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°08'45", long. 117°46"35", 

in swijNEt sec. 25, T. IN., R. 9 W., at mouth of San Dlmas Canyon, 0.7 mile downstream 

from San Dlmas Dam and 3 miles northeast of San Dlmas. Altitude of gage, about 

1,245 feet.

Drainage area.- 18.3 square miles.

Records available.- April to September 1916 (discharge measurements only), December 1916 

to beptemoer 1947.

Average discharge.- 30 years (1917-47), 5.09 second-feet.

Extremes.- Maximum discharge during year, 67 seeond-feet Dec. 26 (gage height, 1.86 feet); 

minimum dally, less than 0.1 second-foot on many days.

1916-47: Maximum discharge, 5,000 second-feet Mar. 2, 1938, from records of 

release at San Dlmas Dam and computed Inflow between dam and gaging station; no flow 

for several months during most years prior to 1937.

Remarks.- Records good. Plow regulated by San Dlmas flood-control dam. San Dlmas Water 

uo. diverts water Just below station for Irrigation.

Cooperation.- Forty-nine discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Hedger, chief engineer.

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

Oot.

5.1

4.8

5.4

5.0

4.8

4.3

3.9

3.9

3.7

3.8

3.9

3.9

3.9

4.3

4.6

4.6

4.6

4.6

4.2

2.8

2.8

2.8

3.0

2.8

3.0

3.0

3.2

3.2

3.1

3.1

3.1

Nov.

3.1

3.0

2.8

2.8

2.6

2.8

2.8

2.8

2.8

2.8

2.1

1-1

10

13

30

16

.5

.4

.4

22

36

34

34

25

20

18

7.1

.9

.6

.6

-

Dec.

0.5

.4

.4

.4

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

4.6

7.3

7.3

7.3

7.3

38

59

44

23

23

22

21

Jan.

21

16.

10

9.7

9.0

8.8

8.6

5.2

3.2

3.1

3.1

3.0

2.8

2.8

2.8

3.0

3.0

3.0

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

6.3

10

10

10

Feb.

10

10

6.6

3.8

3.8

3.8

3.8

3.8

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

3.7

3.7

3.7

3.7

3.7

3.7

3.7

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

llaroh. .....................................

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

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

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

Jnly. ......................................

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

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

Water year 1946-47 ......................

Mar.

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.8

3.8

3.8

3.8

3.7

3.7

3.6

3.6

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.9

3.9

3.9

3.9

Apr.

3.8

3.8

3.8

3.9

4.1

4.0

3.9

3.9

3.8

3.7

3.7

3.9

4.2

4.3

4.6

4.5

4.5

4.7

4.6

4.5

4.6

4.6

4.3

4.3

4.2

4.2

4.3

4.3

4.3

4.3

Seoondfoot-days

119.2

318.2

271.4

1,504.4

182 3

m oo 

115.7

125 *6

131.0

93 1

e!34

.62

40.60

1,525.86

' May

4.2

4.2

4.3

4.3

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.3

4.3

4.2

4.1

4.1

4.1

4.1

4.1

4.1

4.3

4.2

4.2

4.1

4.1

4.1

4.1

3.9

3.9

4.1

4.1

Maximum

5.4

36

59

59

21

10

t'.7 3 9

4. -5

4.3

1.0

5.5

59

June

4.2

4.3

4.3

4.3

4.3

4.2

4.2

4.1

4.1

4.1

4.1

4.1

3.9

3.9

3.9

3.8

3.8

3.8

3.7

2.8

1.8

1.7

1.7

1.8

1.6

1.5

1.1

.7

.7

.6

Minimum

2 OO 

.4

.3

.2

2 Q

 O

3.7

3 z'.76

3.9

.6

-

-

July

0.7

.9

1.0

.9

.9

.6

.2

.1

.1

.1

> e.04

Aug.

>e0.02

Mean

3 85

io!e

8.75

4.12

5 .88

4.35

3.73

4.19

4.23 z'.io

.205

.02

1.35

4.18

Sept.

.

I

S eO.02

J

2.3

5.3

5.4

5.5

5.3

5.4

5.3

3.8

.2

.1

1.1

.2

.1

.1

.1

. e.03

-

Runoff in 

ao re-feet

236

631

538

2,980

362

242

229

249

260

185

13

1.2

81

3,030

e Dally discharge less than 0.1 sec.-ft.

Mote.- Incomplete or no gage-height record for most of period July 28 to Sept. 5; discharge 

computed on basis of 3 discharge measurements.
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 1947.

Average discharge.- 27 years (1920-47), 1.27 second-feet.

Extremes.- Maximum discharge during year, 14 second-feet Nov. 20 (gage height, 1.01 

reet); no flow for several months.

1919-47: Maximum discharge, about 850 second-feet Mar. 2, 1938, from record of 

release from Big Dalton Reservoir; no flow for several months each year.

Remarks.- Records good. Plow regulated by Big Dalton flood-control dam. Glendora Irrigating Co. diverted 314 acre-feet during water year at diversion dam 1.5 miles above 

station.

Cooperation.- Thirty-three discharge measurements furnished by Los Angeles County Flood 

uontroi District, through H. E. Hedger, chief engineer.

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.

0

0

.3

a.l

a.l

0

0

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.

0

0

0

0

0

0

0

0

0

0

0

.1

.7

.7

.3

.2

.1

.1

.1

4.8

2.0

1.0

2.8

2.6

1.8

1.1

.8

.7

.6

.5

-

Dec.

0.5

.4

.4

.3

.3

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

1.6

4.0

3.3

3.0

2.6

7.7

11

Jan.

11

9.4

9.0

9.0

8.7

8.7

8.4

4.4

1.0

.8

.8

.7

.7

.6

.6

.6

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

1.2

.6

.5

.4

Feb.

0.4

.4

.3

.3

.3

.3

.3

.3

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

_

_

-

Month

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

Calendar year 1946 ......................

March

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

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

Water year 1946-47 ......................

Mar.

0.2

.2

.2

.2

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

Apr.

0.2

.2

.3

.3

.3

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

Seccndfoct-days

39.6

135.5

0

169.06

May

0.1

.1.1.1

.1

.1.1.1

.1.1

.1

.1

.1.1.1

.1

\ 6.03

Maximum

4 Q

11

11

0

11

June

SeO.Ol

0

0

0

0

0

0

0

0

0

0

0

O

O

O

0

O

0

D

O

Minimum

.2

o

0

0

July

0

0

0

o

0

1.1

1.3

.7

.8

.1

.2

.2

.1

.1

0

0

O

0

O

0

0

0

0

0

0

0

0

o

Aug.

Mean

1.28

.37

2 CA

0

.46

Sept.

Runoff in 

ao re-feet

79

271

1 CO

0

336

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

e Daily discharge less than 0.1 sec.-ft.
100 SAM GABRIEL RIVER BASIN

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., R. 9 W., about 0.8 mile upstream from mouth of canvon and 2.5 miles northeast of 

Glendcra. Altitude of gage, about 1,330 feet. Prior to Nov. 30, 1938, station was 

located three-quarters of a mile downstream.

Drainage area.- 2.7 square miles since Nov. 30, 1933. Drainage area at former site, 3.3 

square miles.

Records available.- January 1929 to September 1947. 

Average discharge.- 18 years, 1.02 second-feet.

Extremes.- Maximum discharge during year, 57 second-feet Nov. 20 (gage height, 1.05 feet) 

no now part of year.

1929-47: 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 

ii. j£. Meager, chief engineer. '

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

2fi

29

30

31

Oct. Nov.

o

0

0

0

0

0

0

0

0

0

0

.2

2.9

1.5

1.0

.6

.3

.2

.2

19

4.6

2.8

6.7

3.6

2.4

1.7

1.4

1.2

1.2

1.1

-

Dec.

1.1

1.0

.8

.7

.7

1.2

1.1

.8

.8

.7

.6

.6

.6

.5

.5

.5

.5

.5

.4

.4

.4

.3

.3

.5

4.5

7.8

8.7

7.4

6.0

4.6

3.6

Jan.

3.2

3.0

2.4

2.2

1.9

1.6

1.5

1.4

1.2

1.2

1.1

1.0

1.0

1.1

1.0

.7

.6

.6

.8

1.0

.8

.8

.7

.7

.6

.6

.7

2.4

1.1

.8

.7

Feb.

0.6

.7

.7

.7

.8

.8

.8

.8

1.1

.8

.6

.5

.5

.4

.4

.4

.9

1.1

.6

.6

.5

.5

.6

.6

.6

.6

.7

.7

_

_

-

Month

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

Calendar year 1946 ......................

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

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

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

September. :................................

Water year 1946-47 ......................

Mar.

0.6

.6

.6

.6

.7

.5

.5

.5

.5

.5

.6

.5

.4

.4

.3

.3

.4

.5

.6

.6

.7

.7

.6

.6

.5

.4

.5

1.5

.8

.7

.6

Apr.

0.5

.5

.5

.5

.5

.4

.4

.3

.3

.3

.2

.1-

.2

.2

.3

.3

.3

.3

.4

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.3

-

Secondfoot-days

0

52.6

58.1

249.6

38.4

17.8

10-. 5

0

0

0

201.3

May

0.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.2

.1

.2

.3

Maximum

19

8.7

19

0

0

19

June

0.2

.1

.1

.1

.1

.1

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Minimum

.3

0

1

0

0

July Aug.

Mean

1.87

.68

1.24

0

0

.55

Sept.

Runoff in 

acre-feet

115

493

0

398
SAN GABRIEL RIVER BASIN 101 

San Jose Creek near Whittier, Calif.

Location.- Water-stage recorder, lat. 34°01'25", long. 118°02'0b", in Paso de Bartolo 

urant, 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 1947.

Average discharge.- 18 years, 9.80 second-feet.

Extremes.- Maximum discharge during year, 833 second-feet Dec. 26 (gage height, 3.41 

reet); minimum, 0.6 second-foot Sept. 9.

1929-47: Maximum discharge, 13,100 second-feet Jan. 1, 1934; no flow at times.

Cooperation - Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

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.

4.0 

4.5 

3.8 

3.8 

3.3

2.9 

2.4 

2.7 

2.9 

2.4

2.2 

2.2 

2.4 

2.7 

2.7

2.7 

3.3 

2.7 

2.7' 

2.9

3.1 

3.3 

3.3 

3.3 

3.8

3.3 

3.5 

3.1 

3.1 

2.9 

2.7

Nov.

2.7 

2.7 

2.4 

2.2 

2.2

2.4 

2.2 

2.7 

1.8 

1.8

2.0 

27 

178 

60 

11

8.1 

9.0 

8.7

51

9.9 

6.0 

131 

17 

9.4

7.8 

6.3 

5.5 

5.0 

5.2

Dec.

5.2 

5.0 

5.5 

6.3 

6.3

9.3 

6.5 

6.0 

6.8 

7.1

6.8 

6.3 

5.2 

5.5 

6.3

6.8 

6.8 

7.4

6.3

6.3 

6.0 

6.0 

6.3 

138

250 

22 

20 

15 

1? 

11

Jan.

10 

8.7 

7.1 

7.1 

7.4

7.4 

7.4 

7.8 

7.8

7.8 

7.8 

7.8 

7.8 

7.8

7.8 

7.8 

7.4

7.4

7.1 

7.1 

7.1 

7.4 

7.1

7.1 

7.1 

9.0 

8.4 

7.1 

7.1

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Maro 

Apri 

Hay.

June 

July 

Augu 

Sept

Ha

Feb.

7.1 

7.1 

7.4 

7.8 

8,1

8.4 

8.4 

8.4 

9.0

8.1 

8.1 

8.1 

8.1 

8.1

8.1 

8.4 

8.4

8.1

8.1 

7.8 

7.4 

7.8 

7.1

6.8 

7.1 

7.4

ber. ...................................

mber. ..................................

lendar year 1946 

ary

h. .....................................

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

ter year 1946-47 ......................

Mar.

8.1 

8.7

9.0 

9.4 

12

9.7 

9.4 

9.4

9.0

8.4 

8.1 

8.1 

8.1 

8.1

8.1 

8.1 

8.1

7.8

8.1 

7.8 

7.4 

6.8 

6.8

6.8 

7.1 

7.4 

7.4 

7.1 

7.1

Apr.

7.1 

7.1 

7.1 

7.8 

6.8

7.8 

8.7 

9.0 

9.4

7.8 

7.1 

8.5 

6.0 

6.0

6.0 

6.0 

5.0 

5.2 

4.7

4.7 

4.7 

4.7 

4.2 

4.5

4.7 

4.0 

3.8 

4.5 

4.2

Secondfoot-days

94.6 

589.7 

621.1

3,176.9

236.9 

221.8 

254.2 

183.8 

96.1 

82.8 

70.8 

73.6 

45.8

2,571.2

May

4.0 

3.5 

3.5 

2.9 

3.3

3.3 

2.7 

3.8 

3.5

4.0 

3.5 

3.5 

3.5 

3.5

3.3 

3.3 

2.4 

2.2 

3.3

3.1 

2.9 

2.7 

2.2 

2.0

2.4 

2.4 

2.4 

2.4 

3.1 

2.4

Maximum

4.5 

178

250

250

10 

9.0 

12 

9.4 

5.1 

3.5 

3.3 

3.3 

2.2

250

June

2.4 

2.7 

3.3 

2.9 

2.9

3.1 

2.9 

3.5 

3.5

2.9 

2.9 

3.3 

3.1 

3.1

2.2 

2.9 

3.3 

2.7

2.0

2.4 

2.4 

1.8 

2.0 

2.4

2.7 

2.4 

2.4 

2.7 

2.9

Minimum

2.2 

1.8 

5.0

1.6

7.1 

6.8 

6.8 

3.8 

2.0 

1.8 

1.6 

1.6 

1.2

1.2

July

3.3 

3.3 

2.9 

2.2 

2.0

2.2 

2.2 

2.4 

1.8

1.8 

1.6 

1.6 

1.6 

2.2

2.9 

2.9 

2.7 

2.9 

2.2

2.0 

2.2 

2.4 

2.4 

2.2

2.4 

1.8 

1.8 

2.2 

2.7 

2.4

Aug.

2.0 

2.7 

2.0 

2.0 

2.7

2.4 

2.7 

2.7 

3.3

2.4 

2.2 

2.7 

2.7 

2.7

2.4 

2.2 

2.4 

2.2 

2.2

2.0 

1.8 

1.6 

2.0 

2.9

2.4 

2.7 

2.2 

2.2 

2.4 

2.4

Mean

3.05 

19.7

20.0

8.70

7.64 

7.92 

8.20 

6.13 

3.10 

2.76 

2.28 

2.37 

1.53

7.04

Sept.

2.2 

2.0 

1.8 

1.8 

1.6

1.2 

1.2 

1.2 

1.4

1.2 

1.6 

1.4 

1.2 

1.2

1.4 

1.8 

1.8 

1.6

1.6

1.6 

1.4 

1.6 

1.2 

1.4

1.4 

1.6 

1.6 

1.6 

1.6

Runoff in 

acre-feet

188 

1,170 

1,230

6,300

470 

440 

504 

365 

191 

164 

140 

146 

91

5.100

854211 O - 49 - 8
102 SAN GABRIEL RIVER BASIN

Coyote Creek near Artesia, Calif.

Location.- Water-stage recorder, lat. 35°50'45", long. 118°03'30", In Los Coyotes Grant, 

at 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 1947 in reports of Geological Survey, 

ueeember lijsja to September 1939 (weekly discharge measurements only prior to January 

1930) In files of office of Los Angeles County Flood Control District.

Average discharge.- 17 years (1930-47), 9.24 second-feet.

Extremes.- Maximum discharge during year, 145 second-feet Nov. 14 (gage height, 5.07 feet); 

minimum dally, 0.1 second-foot June 12.

1930-47: 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 

ti. K. Meager, chief engineer.

Discharge, in second-feet, water year October 1946 tc September 1947

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.

2.6

2.5

2.6

2.8

3.0 

3.1

3.1 

3.2

3.1

2.9

2.9

2.0

1.8

1.6

1.5

1.5

1.4

3.0

2.6

2.3

3.0

3.4

2.6

3.1

1.2

1.7

1.7

2.8

2.8

3.1

3.3

Nov.

3.2

3.1

2.7

2.3

.9

1.4 

1.2

2.7

1.6

1.7

35

65

70

31

6.8

2.8

2.5

2.7

15

33

10

38

49

9.9

3.4

3.0

3.0

3.0

3.1

-

Dec.

3.1

3.2

3.1

3.1

3.0

2.8 

2.6

2.5

2.4

2.3

2.1

2.0

2.0

1.9

1.8

1.8

1.8

1.8

1.9

2.0

2.0

1.9

2.0

3.6

96

36

12

5.6

4.7

5.9

Jan.

9.3

6.5

5.9

5.6

5.4

4.9 

4.6

4.2

4.0

4.0

4.0

3.8

3.9

3.8

3.4

3.3

3.4

3.6

3.6

4.3

4.3

4.0

4.3

4.2

4.4

4.4

5.6

6.5

5.9

5.4

Feb.

5.1

5.1

4.9

4.9

4.6

4.4 

4.2

4.0

3.8

3.6

3.5

3.3

3.1

3.3

3.2

3.1

3.2

3.2

3.1

3.0

3.0

2.8

2.8

2.4

2.4

2.8

3.3

_

-

Month

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

Calendar year 1946 ......................

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

tfau

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

Water year 1946-47 ......................

Mar.

3.3

3.1

2.9

2.8

2.3

3.1 

3.1

2.9

2.8

3.1

3.2

3.1

2.8

2.2

2.0

3.1

2.2

2.3

2.6

3.0

3.1

2.8

2.8

1.6

1.9

3.3

3.2

3.2

3.6

3.1

Apr.

2.8

2.8

2.8

2.6

2.4

1.7 

1.2

.7

.6

.6

.7

1.0

.6

1.3

1.6

1.8

2.1

1.8

1.1

1.2

1.3

.9

1.0

.7

1.0

1.0

1.9

1.7

1.6

Seccndfcct-days

219.9

1,653.2

88 2

45 2

23 3

31.4

1,238.5

Hay

1.4

1.4

1.4

1.6

1.7

1.6 

1.4

1.2

1.0

1.8

1.9

1.2

1.3

1.4

1.0

.9

1.3

1.3

1.2

1.3

1.4

1.2

1.9

2.0

1.9

2.0

2.0

1.6

1.0

.9

Maximum

96

96

9 3

2 0

2 2

i.e

96

June

1.0

2.0

2.1

2.2

2.0

1.3 

1.2

1.0

.7

.4

.1

.2

.2

.7

.9

.8

.8

1.0

1.4

1.3

1.2

1.6

1.4

1.4

1.7

1.6

1.6

1.4

1.3

Minimum

1.8

.2

Q

.6

.1

July

1.3

.6

.8

.7

.7

.7 

.9

.7

.6

.5

.4

.6

.9

.7

.6

.5

.4

.7

.6

.5

.5

.4

.3

.4

.3

.2

.2

.5

.3

.2

Aug.

0.3

.2

.8

1.0

.8

.6 

.5

.4

.5

.7

.7

.7

.6

.5

.6

.6

.7

1.1

1.1

.8

.6

1.1

1.2

.9

1.4

1.4

.9

.6

.6

.7

Mean

7.09

4.53

3 60

1.05

3.39

Sept.

.8

1.4

1.6

1.0

.7

.6 

.9

.9

1.1

.6

.6

.6

.7

.7

1.0

.7

1.2

1.8

1.4

1.1

1.8

1.5

1.0

.9

.8

.9

1.2

1.7

1.6

Runoff in 

acre-feet

436

3,280

62

2,460
SAN GABRIEL RIVER BASIN 103

Brea Creek below Brea Dam, near Fullerton, Calif.

Location.- Water-stage recorder, lat. 33°53'15", long. 117°55 I 30", 0.2 mile downstream 

from Brea 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 1947.

Extremes.- Maximum discharge during year, 56 second-feet Dec. 31 (gage height, 1.98 

feet); no flow Aug. 16, 17.

1942-47: Maximum discharge, 655 second-feet Feb. 29, 1944 (gage height, 5.10 

feet); no flow during several months of most years.

Remarks.- Records good. Flow regulated by Brea Dam.

Cooperation.- Gage-height graph and results of seven discharge measurements furnished 

by Corps of Engineers.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6 

7

10

11

12

15

16

21

22

23

26

28

30

Oct.

0.2

.1

.1

.1

.2

.1 

.1

.1

.2

.2

.2

.2

.1

.1

.2

.1

.1

.2

.1

.1

a.l

a.l

a.l

a.l

.3

.1

.1

.1

.1

.2

.2

NOT.

0.2

.2

.1

.1

.2

.1 

.2

.5

.1

.1

.1

6.5

5.3

1.5

.2

.4

.2

.1

.1

1.0

.8

.4

1.0

1.1

1.0

.7

.4

.3

.2

.2

-

Dec.

0.2

.2

.2

.1

.1

.1 

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.6

1.3

1.2

1.2

1.0

.9

2.9

Jan.

0.2

.1

.1

.1

.1

.1 

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

Feb.

0.1

.1.1.1.1

.1 .1.1

.1.1

.1.1.1

.1.1

.1

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

_

_

-

Month

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

Calendar year 1946 ......................

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

July

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

Water year 1946-47 ......................

Mar.

0.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

.3

.3

.3

.3

.3

.2

.2

.4

.3

.4

.3

.3

.3

.2

.4

.3

.3

.4

.3

.2

.2

Apr.

0.3

.4

.3

.3

.3

.2 

.2

.4

.4

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

-

Second 

f cot-day a

4.3

23.3

11.8

'150.0

3.3

3.8

4.2

4.0

.94

1.80

72.01

May

0.1

.a.1.1.1

.1 .1.1.1

.4

.2

.1

.1

.1

.2

.2

.2

.1

.1

.2

.1

.1

.1

.2

.1

.2

.2

.1

.1

.1

.1

Maximum

0.3

6.5

2.9

36

.2

.2

.4

.4

.2

.1

.1

.2

6.5

June

0.1

.1

.1

.1

.1

.1 

.1

.1

.1

.1

.1

.2

.2

.1

.1

.2

.2

.2

.2

.2

.1

.1

.1

.2

.2

.2

.1

.1

.1

Minimum

0.]

.3

0

0

July

, eO.03

 e.ol

\ e.03

.1

.1

Aug.

.

> eO.04

1

\ e.Ol

P l

.1

L e.05

Mean

L 0.14

.78

L .38

L .41

L .11

L .14

.27

.18

L .14

L .13

.028

.030

.060

.197

Sept.

> eO.03

.1

.1

.1

.1

.1

.2

e.06

.1

.05

-

Runoff in 

acre-feet

8.5

46

23

296

6.5

7.5

17

11

8.3

7.9

1.7

1.9

3.6

143

e Dally discharge less than 0.1 sec.-ft.
104 SAN GABRIEL RIVER BASIN

Brea Creek at Fullerton, Calif.

Location.- Water stage recorder, lat. 33°52'25", long. 117°55'40", In San Juan Cajon de 

Santa Ana Grant, on Ford Avenue Bridge, at Fullerton, Orange County. Altitude of 

gage, about 250 feet.

Drainage area.- 26.4 square miles.

Records available.- October 1930 to September 1947.

Average discharge.- 16 years (1930-38, 1939-47), 1.55 second-feet.

Extremes.- Maximum discharge during year, 57 second-feet Dec. 31 (gage height, 0.39 foot); 

no now during most of year.

1930-47: 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. 

Braaiey, flood-control engineer.

Discharge, in second-feet, water year October 1946 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.

0

0

0

0

0

0

.3

1.7

0

0

.6

13

12

2.0

1.0

0

0

0

0

9.0

1.3

1.2

1.3

1.2

1.2

1.0

.7

.5

.3

0

-

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

4.7

6.S

1.6

1.4

1.3

1.2

3.8

Jan. Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

.3

0

0

0

0

0

0

0

0

0

0

-

_

-

Month

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

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

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

Calendar year 1946 .....................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

.3

.3

.3

0

0

0

0

0

.6

1.0

.6

0

.3

.3

.3

.3

.3

.3

.3

.3

.3

Apr.

0

.9

.3

1.2

.3

.3

.3

.3

.3

.3

.3

0

0

0

0

0

0

0

0

0

0

.6

.5

.4

.2

0

0

0

0

0

-

Secondfoot-days

0

48. 3

21.1

142.0

0

 6

6.2

. 6

0

0

0

0

82.6

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

.2

.1

0

0

0

0

0

0

0

0

0

Maximum

0

13

6.8

42

0

.3

1.0

1.2

.3

0

0

0

0

13

June

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

July Aug.

Mean

0

1.61

.68

 XQ

. fc/J

0

.02

.19

.21

.02

0

0

0

0

.23

Sspt.

Runoff in 

acre-fset

0

96

42

282

0

1.2

12

12

1.2

0

0

0

0

164
SAN GABRIEL RIVER BASIN 105

Fullerton Creek below Fullerton Dam, near Brea, Calif.

Location.- Water-stage recorder, lat. 33°53'40", long. 117°53'05", on outlet channel of 

Fullerton Dam, 1.6 miles southeast of Brea, Orange County. Altitude of gage, about 

260 feet (from topographic map).

Drainage area.- 3.05 square miles.

Records available.- October 1941 to September 1947.

Extremes - Maximum discharge during year, 22 second-feet (regulated) Jan. 3 (gage height, 

STTTTeet); no flow most of year.

1941-47: Maximum discharge, 298 second-feet Mar. 16, 1943 (gage height, 3.80 feet), 

no flow most of each year.

Remarks.- Records good. Flow regulated by Fullerton Dam.

Cooperation.- Gage-height graph and results of six discharge measurements furnished by 

Corps or Engineers.

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. Nov.

0

0

0

0

0

0

O

0

0

0

0

.01

.09

.3

.3

.1

.02

0

0

.1

:2

.1

.3

.3

a. 2

a.l

aO

aO

aO

aO

-

Dec.

aO

0

0

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

0

0

0

0

0

0

.06

.6

.5

.5

.4

.5

.4

Jan.

0.4

.5

2.6

.02

..01

0

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0 e

0

Feb.

Mcnth

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar. Apr.

Seccndfcct days

0

2 .12

2^96

31*18

3.53

0

0

0

0

0

0

0

0

8.61

May

Maximum

0

.3

.6

4.5

2.6

0

0

0

0

0

0

0

0

2.6

June

Minimum

(

(

C

(

C

C(

C

C

C

C

C

C

C

July Aug.

Mean

) 0

) .071

3 .095

) .085

) .114

) 0

) 0

) 0

) 0

) 0

0

) 0

) 0

> .024

Sept.

Runoff in 

acre feet

0

4.2

5.9

62

7.0

0

0

0

0

o

0

0

0

17

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

interpolation.
106 SAN OAHRIEL RIVER BASIN

Fullerton Creek at Pullerton, Calif.

Location.- Water-stage recorder, lat. 33°52'20", long. 117°54'20", in San Juan Cajon de 

Santa Ana Qrant, on Raymond Avenue Bridge, at Pullerton, Orange County. Altitude of 

gage, about 170 feet.

Drainage area.- 6.2 square miles.

Records available.- October 1939 to September 1947 in reports of Qeological Survey. 

Octooer 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, Santa Ana, Calif.

Average discharge.- 12 years (1935-47), 0.89 second-foot.

Extremes.- Maximum discharge during year, '18 second-feet Jan. 3 (gage height, 0.55 

root); no flow most of year.

1935-47: 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 seoond-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

IS

19

20

21

22

23

24

25

26

VI

28

29

30

31

Oct.

0.2

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

.7

.2

.6

.3

.1

o

0

0

0

.4

.2

.6

0

0

0

1.0

Nov.

0.8

.4

O

o

0

o

.3

1.8

.5

.4

1.0

6.1

4.0

2.0

0

0

0

0

0

1.9

0

0

0

0

0

0

0

0

0

0

-

Dec.

0

o

0

0

o

0

0

0

0

o

0

o

o

o

0

0

o

o

0

0

0

o

0

0

3.3

4.8

1.0

0

0

0

0

Jan.

O

0

3.6

1.4

O

O

o

0

0

0

0

0

o

o

0

0

o

o

0

0

0

o

0

o

0

o

o

0

0

0

o

Feb.

Month

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

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

Calendar year 1946 ......................

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

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

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

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

Water year 1946-47 ......................

Mar. Apr.

Secondtoo t-days

19 £

9.1

56.2

O

37.6

May

Maximum

4.8

7.4

0

6.1

June

Minimum

0

0

P

0

0

July Aug.

Mean

.29

.15

0

.10

Sept.

Runoff in 

acre-feet

38

18

111

0

74
LOS ANGELES RIVER BASIN 107

Los Angeles River at Sepulveda Dam, Calif.

Location.- Water-stage recorder, lat. 34°09'50", long. 118°28'10", on outlet channel of 

SepuTveda 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 1947.

Extremes.- Maximum discharge during year, 760 second-feet Dec. $6 (gage height, 4.11 feet); 

minimum daily, 6.1 second-feet Sept. 27-30.

1943-47: Maximum discharge, 4,800 second-feet Feb. 22, 1944 (gage height, 7.90 

feet); minimum daily, 4.8 second-feet July 25, 1943, Feb. 10^ 1944.

Remarks.- Records fair. Storage of imported water in San Fernarldo Reservoir and diversions above station. Flow regulated by Sepulveda flood-control dam.

Cooperation.- Gage-height graph and 48 discharge measurements furnished by Corps of Engineers .

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.

27

26

26

21

16

22

23

23

8.4

7.7

13

24

24

24

23

24

22

23

23

23

23

23

24

24

24

25

26

27

26

19

8.4

Nov.

7.3

7.3

6.9

6.9

6.9

7.3

7.7

8.0

8.0

8.0

" 9.1

19

180

73

11

8.9

8.9

8.9

8.9

32

49

56

155

79

56

58

38

8.0

8.0

8.0

-

Dec.

8.0

8.0

8.0

8.0

8.0

18

16

8.9

8.0

19

51

51

51

51

31

8.9

8.9

8.9

8.9

33

69

41

8.9

17

85

267

100

75

57

29

8.0

Jan.

8.9

8.0

29

69

41

8.9

8.9

10

21

49

86

46

11

10

10

10

41

84

45

8.9

8.9

8.0

8.0

47

92

53

14

12

12

8.9

52

Feb.

103

56

7.2

8.9

10

12

37

84

84

100

103

101

101

101

101

103

101

99

99

99

99

99

99

101

81

53

56

56

_

-

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

56

58

60

62

73

60

58

60

58

54

22

18

18

15

15

15

14

14

11

11

11

13

14

14

13

12

11

12

9.9

9.2

9.2

Apr.

8.8

9.0

9.4

9.9

9.9

10

11

10

10

9.7

8.8

8.5

8.5

9.0

9.4

9.7

10

10

10

10

10

9.4

9.2

9.0

9.0

9.0

9.0

9.0

9.0

9.0

-

Secondfoct-days

672.5

949 O

l,17o!4

7,271.9

921.4

2,154.1

880 3

283. £

254.8

221 !l

227.2

194.6

8,137.5

May

8.5

8.5

8.5

8.3

8.3

8.3

8.5

8.8

8.3

8.5

8.5

8.3

8.3

8.5

8.5

8.5

9.4

8.5

8.1

8.1

8.1

8.1

8.3

8.1

7.4

7.2

7.4

7.6

7.9

7.9

7.6

Maximum

27

180

267

267

92

103

73

11

9 4

?!e

7.9

8.8

7.0

267

June

7.6

7.6

7.4

7.2

7.2

7.0"

6.8

6.8

6.5

6.5

6.5

7.0

6.8

6.8

6.8

6.8

7.0

7.4

7.4

7.2

!T.O

6.5

6.5

7.2

7.0

7.0

6.8

6.8

7.0

6.8

-

Minimum

7.7

6.9

8.0

5.9

I 8.0

7.2

9.2

8.5

7i2

6.5

6.3

6*8

6.1

6.1

July

7.0

7.0

7.6

7.2

6.8

6.5

6.5

6.3

6.3

6.3

6.3

6.3

7.0

7.2

7.4

7.6

7.9

7.9

7.6

7.6

7.2

7.4

7.0

7.0

7.2

7.2

7.6

7.6

7.6

7.6

7.4

Aug.

7.4

7.2

7.2

7.2

7.2

7.2

7.0

7.6

7.4

7.2

7.2

7.2

7.0

7.0

7.0

7.0

6.8

6.8

7.0

7.2

7.4

7.4

7.2

7.0

7.4

7.6

8.3

8.8

8.3

7.6

7.4

Mean

21.7

31.6

37.8

19.9

29.7

76.9

28.4

9.44

8. 22

6*96

7.13

7.33

6.49

22.3

Sept.

6.5

6.3

6.3

6.5

6.5

6.5

6.8

6.8

7.0

6.5

6.8

6.3

6.5

6.3

6.5

6.5

6.3

6.5

7.0

7.0

6.3

6.5

6.5

6.5

6.5

6.5

6.1

6.1

6.1

6.1

-

Runoff in 

acre-feet

1,330

1,880

2,320

14,420

1,830

4,270

1 750

562

505

414

439

451

386

16,140
108 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 1947.

Average discharge.- 18 years, 67.2 second-feet.

Extremes.- Maximum discharge during year, 5,320 second-feet Dec. 2fa (gage height, 3.25 

I'eet); minimum daily, 1.6 second-feet Aug. 6.

1929-47: 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. K. Hedger, chief engineer.

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.

70

10

7.4

8.4

7.4

6.9

5.9

6.9

7.4

6.9

6.9

7.4

7.9

9.0

11

66

14

6.4

7.4

7.4

7.9

6.9

10

11

11

12

34

12

9.5

10

10

Nov.

7.9

6.9

6.4

6.9

7.4

7.4

8.4

34

9.0

7.4

91

563

896

502

113

80

62

48

52

596

88

80

522

185

140

95

88

56

38

38

-

Dec.

38

38

38

38

38

177

83

38

38 "38

55

65

65

65

62

38

37

37

37

37

57

57

41

88

872

824

230

203

150

120

90

Jan.

63

63

70

84

66

42

39

38

50

55

103

91

47

45

43

43

47

75

73

45

43

43

40

40

74

75

42

103

46

43

40

Feb.

71

70

42

42

42

43

42

74

137

104

116

116

116

116

116

116

116

116

116

116

116

116

116

116

116

90

85

85

_

-

Month

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

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

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

Calendar year 1946 .................. ...

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

83

85

90

101

153

94

88

88

88

90

71

59

43

12

12

12

12

12

12

17

48

12

11

11

11

11

15

94

39

10

9.0

Apr.

10

9.5

26

21

13

14

14

15

14

13

11

13

6.9

6.4

7.4

7.9

7.4

7.4

7.9

7.9

8.4

9.5

9.5

9.5

10

9.0

8.4

9.0

8.4

9.0

-

Secondfoot-days

414.9

4,434.7

3,794

20,144.2

1,771

2,667

1,493.0

323 . 4

295 3

199 5

lesig

80 . 6

149.6

15,792.9

May

9.0

9.0

7.9

7.9

6.9

6.9

6.9

6.9

7.9

9.0

9.0

10

13

15

14

13

11

10

10

10

10

10

9.5

9.0

8.4

9.5

18

7.4

6.4

6.9

6.9

Maximum

70

896

872

983

103

137

153

26

18

9.0

6.4

4.0

7.4

896

June

7.4

7.4

8.4

9.0

8.4

7.4

6.9

5.9

5.9

5.9

5.9

6.4

6.9

6.9

6.9

6.9

5.9

6.9

6.9

6.9

6.4

5.6

5.9 '6.4

6.4

6.9

6.4

5.6

4.9

4.9

-

Minimum

5 e'.4. !

37

3.4

38

42

9.C

6.4

6.4

4. e

3. S

1 (

4.1

1.6

July

5.2

5.2

5.2

5.2

4.9

4.9

4.9

5.6

6.4

6.4

6.4

6.4

6.4

5.9

5.6

5.2

5.9

6.4

6.4

5.9

5.6

6.4

6.4

5.6

5.2

5.2

4.6

4.4

4.2

4.0

3.9

Aug.

3.6

2.6

2.4

2.3

1.9

1.6

1.8

1.9

2.1

2.1

2.3

2.6

2.6

2.6

2.5

2.4

2.3

2.2

2.1

2.1

2.1

2.1

2.4

2.9

2.9

3.3

3.6

3.6

3.8

3.9

4.0

Mean

13 4

148 '

122

55.2

57.1

95.2

48.2

10.8

9 .53

6.65

5.48

2.60

4.99

43.3

Sept.

4.1

4.2

4.3

4.4

4.6

4.6

4.2

4.2

4.2

4.6

4.6

4.2

4.6

4.9

5.2

5.6

7.4

5.9

5.2

5.2

5.2

5.2

5.9

5.9

5.6

5.6

5.6

4.9

4.9

4.6

-

Runoff in 

acre-feet

823

8,800

7,530

39,960

3,510

5,290

2 , 960

641

586

396

337

160

297

31,330
LOS ANGELES RIVER BASIN 

Los Angeles River near Downey, Calif.

109

Location.- Water-stage recorder, lat. 33°57'05", long. US'lO'iSS", in San Antonio Grant, 

at Firestone 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 1947.

Average discharge.- 19 years, 105 second-feet.

Extremes.- Maximum discharge during year, 14,900 second-feet Dec. 25 (gage height, 7.30 

feet); minimum, 12 second-feet Sept, 1.

1928-47: 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. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1946 to September 1947

iW

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

233

55

35

35

31

31

31

30

26

25

24

24

24

25

28

146

50

33

30

28

33

33

33

30

30

30

66

48

37

33

31

Nov.

30

3O

28

30

31

31

30

48

39

3O

136

2,360

1,790

1,060

201

154

112

8O

80

1,390

236

331

1,480

484

350

194

180

142

109

102

-

Dec.

87

87

84

77

74

316

148

98

87

8O

87

94

9491:

91

80

63

58

55

55

66

77

60

148

2,850

2,610

1,220

761

304

222

ISO

Jan.

122

105

98

105

98

84

72

66

66

74

94

94

77

63

60

58

58

72

80

63

58

55

55

52

66

77

69

290

102

84

77

Feb.

87

98

77

60

58

55

55

74

414

203

201

2O8

208

208

201

194

215

201

187

194

194

180

167

180

180

142

105

105

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

March. ............... Sly"1 1....... ...............................

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

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

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

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

Water year 1946-47 ......................

liar.

98

91

109

102

256

129

1O2

98

91

91

84

66

55

31

28

26

26

28

26

39

66

39

31

28

26

30

33

124

55

28

26

Apr.

26

28

30

46

2 a

24

26

28

28

28

25

24

24

24

26

26

28

28

28

26

28

35

28

26

28

26

24

26

28

30

-

Secondfoot-clays

1,348

11,298

10,404

45,166.6

2 594

4*451

2,062

830 

886

700

660

564

675

36,472

May

30

28

26

24

28

28

28

26

28

44

30

30

31

33

31

33

31

30

28

28

26

28

28

25

22

26

25

31

26

28

26

Maximum

233

2,360

2,850

2,850

290

414

256

46 

44

28

25

25

30

2,850

June

 

26

28

26

25

25

25

22

22

22

24

22

22

22

22

19

20

24

20

24

24

22

19

24

25

25

25

25

25

24

22

-

Minimum

24

28

55

8.'

52

55

26

24 

22

19

16

14

14

14

July

24

20

22

19

16

18

19

19

20

22

22

22

19

22

24

25

25

25

24

24

18

22

25

22

22

20

16

20

22

22

20

Aug.

2O

20

19

20

22

20

20

25

19

14

16

16

16

18

16

16

15

18

19

20

19

2O

19

19

18

19

18

16

16

16

15

Mean

43.5

377

336

I 124

83.7

159

66.5

27.7 

28.6

23.3

21.3

18.2

22.5

99.9

Sept.

14

15

20

22

24

22

19

20

25

25

25

24

24

19

19

22

30

26

24

25

20

22

25

25

26

25

24

20

22

22

-

Runoff in 

acre-feet

2,670

22,410

20,640

89,580

5,150

8,830

4,090

1,650 

1,760

1,390

1,310

1,120

1,340

72,360
110 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 1947. 

Average discharge.- 18 years (1929-47), 163 second-feet.

Extremes.- Maximum discharge during year, 18,800 second-feet Dec. 26 (gage height, 7: 88 

I'eetj; minimum daily, 18 second-feet Sept. 3.

1928-47: Maximum discharge, 99,000 second-feet Mar. 2, 1938; no flow at times in 

1929, 1930, 1934.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Meager, chief engineer.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

S

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

300

130

53

50

46

42

41

39

39

36

33

32

32

33

35

160

87

55

42

37

42

42

41

40

40

40

76

61

48

42

40

Nov.

40

41

41

42

44

43

45

51

42

35

45

2,610

4,530

2,050

232

197

160

100

350

1,850

481

375

2,080

658

482

442

170

158

150

125

-

Dec.

110

100

98

95

153

427

341

189

130

150

210

234

215

196

180

155

135

114

100

90

86

88

80

150

1,770

5,750

2,150

1,050

623

442

347

Jan.

275

204

160

140

135

130

125

110

96

98

102

100

92

80

84

109

100

95

90

94

100

113

123

115

loo

93

91

279

177

133

119

Feb.

106

113

102

90

80

106

119

124

290

739

184

216

232

194

172

162

162

150

124

106

106

128

132

145

167

156

128

115

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

115

132

132

136

523

246

128

128

128

124

132

119

102

85

52

48

44

52

58

62

162

119

60

50

50

46

50

124

172

68

44

Apr.

48

52

48

71

56

46

35

41

41

39

39

39

39

32

41

41

41

44

46

48

46

66

52

44

48

44

43

39

44

41

Secondf cot-days

1,834

17,669

15, 958

63,984

3, 867

4,648

3,491

1,354

1,044

961

841

868

53,410

May

43

34

32

30

28

30

29

29

29

29

48

32

32

35

35

34

34

32

31

30

30

36

37

34

29

28

39

52

32

37

34

Maximum

3OO

4,530

5,750

5,750

279

739

71

52

41

41

36

35

5,750

June

34

30

35

35

41

39

37

30

27

30

32

30

32

29

27

24

26

25

25

26

26

23

20

24

27

32

32

26

27

24

-

Minimum

35

31

8C

3C

8C

4'

3J

28

2C

23

2C

ie

le

July

27

29

29

28

22

21

21

22

23

32

41

41

37

37

37

35

34

34

35

35

35

34

33

33

33

32

32

28

27

27

27

Aug.

27

26

26

26

26

27

30

29

29

28

20

23

23

26

24

23

22

21

23

24

26

27

29

30

32

33

35

36

33

30

27

Mean

59. 2

589

515

175

125

166

113

45.1

33.7

29.2

31.0

27.1

£9.9

146

Sept.

24

21

18

19

20

21

22

23

24

25

26

28

29

30

31

33

34

34

34

34

35

35

35

35

34

34

33

33

32

32

Runoff in 

acre feet

3,640

35,050

31,650

126,900

7, 670

9 22O

6^920

2 , 690

2,070

1,740

1,910

1,670

1,720

106,000
LOS ANGELES RIVER BASIN 111

Pacoima Creek near San Fernando, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°20'02", long. 118°23'55" 

in SEfNEt sec. 24, T. 3 N., R. 15 W., 500 feet downstream fi?om 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 1947.

Average discharge;- 30 years (1917-47), 9.18 second-feet.

Extremes.- Maximum discharge during year, 237 second-feet Jan. 7 (gage height, 2.30 

feet); no flow on many days.

1916-47; 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 

HT E. Heager, chief engineer.

Discharge, in second-feet, water year October 1946 to September 1947

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.

4.6

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

32

138

149

155

163

125

.5

.4

.4

.4

.3

0

Nov. Dec.

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

4.0

48

172

154

132

0

0

0

0

0

0

0

0

0

0

0

Jan.

0

0

0

0

0

60

226

230

211

176

45

28

15

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.4

2.8

0

0

Feb.

0

0

0

0

0

0

1.4

4.7

5.3

0

3.1

6.0

5.9

5.9

6.0

6.0

6.0

3.6

4.9

6.4

6.3

6.1

6.1

5.4

4.6

4.6

4.6

4.6

_

-

Month

December. ...................................

Calendar year 1946 ......................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

4.6

4.6

4.5

4.5

4.5

4.4

4.5

4.5

3.0

2.4

3.0

4.8

7.0

6.9

7.0

7.1

7.1

7.2

7.2

7,1

7.1

7.1

7.1

6.4

5.7

5.9

5.9

6.0

6.0

6.0

6.0

Apr.

5.9

5.9

5.9

6.0

6.0

6.0

eio

6.0

6.0

6.0

6.1

6.2

6.4

6.4

6.4

3.8

6.6

6.6

6.8

6.8

6.8

6.8

6.8

6.9

6.8

6.8

6.8

6.8

6.8

6.6

Secondfoe t-days

510.0

2,736.8

10.9

3,038.3

May

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.4

6.3

5.9

5.8

5.7

6.6

6.3

6.1

5.4

5.5

5.8

5.7

5.5

4.9

3.6

.8

.8

1.4

1.8

1.6

2.9

1.3

0

Maximum

172

172

D

.4

230

June

0

.6

3.0

.8

.8

.8

 S

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

.9

.9

.8

.8

.8

Minimun

0

0

.2

0

July

0.8

.7

.7

.7

.7

.7

.6

.6

.6

.6

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.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

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

Mean

16.5

7.50

.36

8.32

Sept.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.4

.3

.3

.3

.3

.2

.3

.3

.3

.3

.4

.4

.4

Runoff in 

acre-feet

1,010

5,430

22

6.020
112 LOS ANGELES RIVER BASIN

Tujunga Creek near Colby Ranch, Calif.

Location.- Water-stage recorder, lat. 34°18'10", long. 118°09'35", just downstream from 

Lucas Creek, 400 feet upstream from crossing of Edison Road, 3.5 miles west of Colby 

Ranch, and 4 miles upstream from Big Tujunga Dam, Los Angeles County.

Drainage area.- 66.9 square miles.

Records available.- October 1930 to September 1947.

Average discharge.- 17 years, 22.4 second-feet.

Extremes.- Maximum discharge during year, 1,500 second-feet Dec. 26 (gage height, 10.45 

reet); minimum daily, 0.1 second-foot Aug. 5-7, Sept. 6.

1930-47: Maximum discharge not determined, probably occurred Mar. 2, 1938. A discharge of 14,800 second-feet occurred Jan. 23, 1943 (gage height, lfa.40 feet); no flow 

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 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.

4.2

2.1

2.6

2.4

1.8

1.6

1.5

1.5

1.4

1.2

1.2

1.2

1.2

1.2

1.5

2.6

2.1

2.0

1.9

1.8

1.6

1.6

1.6

1.6

1.6

1.6

2.4

2.6

2.3

2.1

2.1

Nov.

2.0

2.0

2.0

2.1

2.1

2.3

2.3

2.7

2.6

2.6

3.1

26

402

70

33

23

19

19

19

261

90

50

253

113

57

40

34

28

26

23

-

Dec.

20

19

17

16

16

27

24

19

16

15

14

13

13

12

12

11

11

10

10

10

9.8

9.8

10

17

258

634

257

145

97

73

61

Jan.

54

49

43

40

38

36

32

 30

28

27

27

25

24

24

22

20

20

20

19

19

18

17

17

17

16

16

16

22

20

18

17

Feb.

17

17

16

16

16

15

15

14

16

17

15

14

14

13

13

13

13

13

13

13

12

12

12

11

11

11

11

11

_

.

-

Month

November ......................... ...

December. ...................................

Calendar year 1946 ......................

March. .....................................

April. .....................................

Unv

July. ......................................

September. .................................

Water year 1946-47 ......................

Mar.

11

12

12

13

12

12

11

12

12

11

11

11

11

11

11

11

10

9.8

9.8

11

14

13

11

9.8

9.4

9,0

9.4

12

11

9.8

9.4

Apr.

9.4

9.4

9.8

9.8

9.4

9.0

9.0

8.6

8.2

8.2

7.8

7.4

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.4

7.8

7.4

7.4

7.4

8.2

10

8.6

8.2

7.4

Seccndfcot-days

1,611.8

1,876.6

7,521.1

342 4

11.2

5,553.0

May

6.6

6.1

5.8

5.1

4.8

4.8

4.8

5.1

5.1

5.1

5.4

5.4

5.1

5.6

5.6

4.6

4.1

3.6

3.4

3.4

3.6

3.6

3.6

3.2

2.9

2.7

3.4

3.9

3.6

3.6

3.9

Maximum

4.2

402

634

1,330

17

1.1

.9

634

June

3.4

3.4

3.6

3.6

3.6

3.6

3.4

3.2

3.1

2.7

2.6

2.4

2.1

2.0

2.0

1.9

1.8

1.8

1.6

1.9

1.9

1.6

1.6

1.5

1.5

1.6

1.6

1.6

1.6

1.4

Minimum

1.2

2.C

9.£

11

9.C

7.C

.2

.3

.]

July

1.1

.9

.9

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.5

.5

.4

.4

.4

.4

.4

.3

.3

.2

.2

.2

.2

Aug.

0.2

.3

.2

.2

.1

.1

.1

.3

.6

.5

.5

.4

.2

.2

.3

.2

.2

.2

.2

.2

.5

.6

.6

.5

.5

.6

.6

.6

.6

.5

.4

Mean

1.87

53.7

60.5

20.6

.57

.37

15.2

Sept.

0.3

.2

.2

.2

.1

.2

.2

.6

.6

.4

.2

.2

.2

.2

.5

.9

.6

.6

.6

.6

.4

.4

.3

.2

.2

.2

Runoff in 

acre-feet

115

3,200

3,720

14,920

22

11,020
LOS ANGELES RIVER BASIN

Tujunga Creek near Sunland, Calif.

Location.- Water-stage recorder, lat. 34°17'55", long. 118°16'10", near center of sec. 

32, T. 3 N., R. 13 W. (unsurveyed), 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 1947.

Average discharge.- 30 years (1917-47), 32.9 second-feet.

Extremes.- Maximum discharge during year, 745 second-feet Dec. 25 (gage height, 8.76 

feet); minimum daily, 4.0 second-feet Aug. 6.

1916-47: Maximum discharge, 50,000 second-feet Mar. 2, 1938; minimum, 0.1 secondfoot at times in summers of 1919, 1924, 1928-31.

Remarks.- Flow regulated by Big Tujunga flood-control dam, 7 m^les above station. Two or 

three small diversions above station for irrigation.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in second-feet, wster 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.

17

10

11

11

7.5

7.5

7.2

7.2

6.6

6.3

6.3

6.3

5.8

5.8

6.3

9.0

7.5

7.5

7.5

7.2

7.2

7.5

7.8

7.5

7.5

7.5

8.1

9.0

8.1

7.8

7.5

Nov.

6.9

9.0

14

14

7.5

5.0

4.6

6.0

4.6

4.2

7.8

66

191

231

225

194

33

27

26

242

272

157

84

69

117

114

108

99

104

88

-

Dec.

32

29

28

28

28

36

32

31

30

30

30

29

28

27

26

26

26

26

26

23

19

19

19

22

170

644

473

305

296

293

278

Jan.

176

59

91

115

49

46

44

42

41

40

40

38

36

35

34

33

33

32

32

32

45

58

57

57

56

54

50

39

33

31

30

Feb.

30

30

29

29

29

29

29

27

28

26

26

26

26

26

26

26

26

26

26

26

25

25

25

24

21

20

20

20

_

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April................... ...................

May. .......................................

June .......................................

July

August .....................................

September. .................................

Hater year 1946-47 ......................

Mar.

20

20

20

20

22

20

20

20

20

20

19

8.7

6.9

6.0

5.8

6.0

6.3

6.9

7.5

7.8

9.0

7.5

6.9

6.0

5.6

5.2

5.2

10

8.7

7.8

7.2

Apr.

' 6.9

6.6

6.6

6.6

6.6

6.3

6.3

6.0

6.0

5.8

5.6

5.4

5.2

5.0

4.7

4.4

4.4

4.6

5.0

6.0

7.8

7.2

6.6

6.9

6.9

6.9

6.9

6.6

6.6

6.3

-

Seoondfoot-days

246.0

2,530.6

3,109

12,218.3

1,558

726

362.0

182.7

181.8

154.8

155.0

178.0

175.8

9,559.7

May

6.0

6.3

6.0

5.8

5.8

6.0

6.0

6.0

6.0

6.0

6.3

6.6

6.0

6.3

6.3

6.0

6.0

6.0

5.8

5.8

5.6

5.6

5.6

5.8

5.2

5.0

5.6

5.8

5.4

5.4

5.8

Maximum

17

272

644

698

176

30

22

7.8

6.6

6.3

5.4

14

8.6

644

June

5.6

5.0

5.0

5.2

5.0

5.0

4.8

5.0

4.8

4.6

4.8

4.4

4.2

4.6

4.7

4.6

4.6

4.8

5.2

5.4

5.6

5.6

5.6

5.8

5.8

5.8

5.8

5.8

6.3

5.4

-

Minimum

5.8

4.2

19

4.2

30

20

5.2

4.4

5.0

4.2

4.2

4.0

5.0

4.0

July

4.6

4.6

4.6

4.6

4.4

4.8

4.6

4.2

4.8

5.0

5.2

5.0

5.0

5.0

5.0

1

5.0

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.2

5.0

5.2

5.0

5.0

5.0

5.0

Aug.

5.6

6.6

8.7

14

4.4

4.0

4.2

4.8

5.0

5.2

5.0

4.6

4.8

5.0

5.0

4.8

5.0

5.6

5.6

5.8

5.8

5.8

6.3

6.0

6.0

6.0

6.0

6.0

5.8

5.4

5.2

Mean

7.94

84.4

100

33.5

50.3

25.9

11.7

6.09

5.86

5.16

5.00

5.74

5.86

26.2

Sept.

5.4

5.2

5.4

5.4

5.6

5.6

6.0

8.6

7.7

5.2

5.2

5.2

5.2

5.2

5.4

5.6

6.0

6.0

6.0

6.3

6.1

7.9

7.2

6.6

5.4

5.0

5.0

5.2

5.6

5.6

-

Runoff in 

acre- feet

488

5,020

6,170 

24,240

3,090

1,440

718

362

361

307

307

353

349

18,960
114 LOS ANGELES RIVER BASIN

Tujunga Creek below Hansen Dam, Calif.

Location.- Water-stage recorder and sharp-crested weir, lat. 34°15'31", long. 1180 23'11", 

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 1947 in reports of Geological Survey.

April lyaa to September 1940 (fragmentary) and October 1940 to September 1947 in Annual 

Reports of Los Angeles County Flood Control District.

Extremes.- Maximum discharge during year, 900 second-feet Dec. 27 (gage height, 6.11 

reetj; no flow on many days.

1940-47: 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 

riooa-control dam.

Cooperation.- Gage-height record furnished by Corps of Engineers.

Discharge, in second-feet, water year October 1945 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.

0

0

0

0

0

0

0

.1.1.1

.1.1

.1.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

Nov.

0

0

0

0

0

113

107

38

19

12

10

43

143

168

144

123

120

132

76

22

180

208

160

156

148

122

137

119

137

156

-

Dec.

114

53

27

26

36

34

27

28

40

38

32

29

26

25

24

24

24

24

23

22

20

19

18

19

24

360

480

455

230

186

167

Jan.

175

164

155

159

133

75

40

23

27

29

30

31

31

31

30

30

30

29

29

33

34

38

41

43

44

45

45

46

46

44

40

Feb.

36

32

29

28

26

26

25

24

24

26

26

25

24

24

24

23

22

22

22

22

22

22

21

20

20

IS

17

17

_

-

Month

October ....................................

November. ..................................

December . ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March ...................... ...

Say'1. .....................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

16

16

9.5

0

.1

0

0

0

0

0

0

0

0

0.

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

Apr.

Secondfcct-days

0.9

2,793

2,654

6,579.9

1,740

667

41.6

0 

0

0

0

0

0

7,896.5

May

Maximum

0.1

208

480

480

175

36

16

0 

0

0

0

0

O

480

June

Minimum

0

c

18

0

2'

17

C

0

0

0

0

0

0

0

July Aug.

Mean

0.03

93.1

85.6

18.0

56.1

23 .8

1.34

O 

0

0

0

0

0

21.6

Sept.

Runoff in 

acre- feet

1.8

5,540

5,260

13,050

3,450

1,320

0

0

0

0

0

0

15,650
LOS ANGELES RIVER BASIN 115

Little Tujunga Creek near San Fernando, Calif.

Location.- Water-stage recorder, lat. 34°16'30", long. 118°22 I 2Q", in Tujunga Grant, on 

Foothill Boulevard Bridge, 4 miles east of San Fernando, Los lAngeles County.

Drainage area.- 21.0 square miles.

Records available.- December 1928 to September 1947.

Average discharge.- 19 years, 3.31 second-feet.

Extremes.- Maximum discharge during year, 200 second-feet Nov. 20 (gage height, 4.05 feet); 

no now for several months.

1928-47: 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. is. tteager, chief engineer.

Discharge, in second-feet, water year October 1946 tc Septeaber 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. NOT.

0

0

0

0

0

0

0

0

o

0

0

.7

10

1.2

0

0

o

0

0

52

6.0

2.2

35

9.9

3.2

2.0

1.0

.4

.1

O

-

Dec.

o

o

0

o

0

.6

.3

.1

O

0

0

0

0

o

0

0

0

0

0

0

0

0

0

.4

26

54

36

24

17

8.4

7.2

Jan.

6.4

5.2

4.0

2.7

2.0

3.2

2.5

1.8

1.8

2.2

2.2

1.9

1.2

1.2

.7

1.2

1.2

1.0

.8

.6

.2

.3

.4

.2

.1

.1

.2

2.6

1.0

.6

.1

Feb.

0

0

0

0

o

0

o

.6

1.2

1.0

.6.-5

.4

.2

.1

.1

.1

.1

.1

0

o

.1

0

o

0

0

0

o

_

-

-

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

Hay

September. .................................

Hater year 1946-47 ......................

Mar.

0

0

0

0

.6

.1

0

0

0

0

0

0

o

0

0

o

0

0

0

.3

.4

.1

0

.1

o

o

.1

1.3

.5

.2

.1

Apr.

0

0

o

.1

0

0

0

o

0

o

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Secondfee t-days

123 7

174.0

484.9

0

356.3

May

Maximum

52

54

96

0

54

June

'

Minimum

o

0

0

o

July Aug.

Mean

5.61

1.33

0

.98

Sept.

Runcff in 

acre-feet

245

345

962

0

706
116 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 NWr-NWt sec 17, T. 2 N., ft. 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).

pralnage area.- 1.2 square miles.

Records available.- February 1917 to September 1934, October 1935 to September 1947.

Average discharge.- 29 years, 0.175 second-foot.

Extremes.- Maximum discharge during year, 6.2 second-feet Dec. 25 (gage height, 1.88

 feet);' minimum dally, less than 0.01 second-foot on many days.

1917-34, 1935-47: 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); minimum discharge, less thin 0.01 second-foot during 

periods in most years.

Remarks.- Records fair. Diversions above station for domestic use.

Discharge, in second-feat, 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

23

24

25

26

27

28

29 

30

31

Oct.

I eO.003

.01

.05

.07

.05

.05

.05

.05

.04

.01

.01

.01

.01

.01

.01

.01

.01

.01

.03

\

> e.005

'

Nov.

VeO.006

.06

.32

.09

.05

.04

.03

.03

.03

.55

.15

.15

.24

.19

.17

.17

.15

.13

.11 

.11

-

Dec.

0.11 

.09

.08

.08

.11

.13

.11

.09

.08

.08

.08

.09

.11

.11

.13

.13

.13

.13

.13

.13

.13

.13

.13

.17

.88

1.3

.36

.29

.29 

.29

.29

Jan.

0.26 

.26

.26

.26

.26

.26

.26

.26

.24

.24

.24

.24

.24

.24

.24

.21

.21

.21

.21

.21

.19

.19

.19

.21

.19

.17

.17

.24

.19 

.19

.19

Feb.

0.17 

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.15

.13

.12

.09

.08

.08

.09

.09

.09

-

Month

December . ..................................

March. ............................... .....

April ................................. ....

May........................................

July. ......................................

September. .................................

Hater year 1946-47 ......................

Mar.

0.08 

.08

.08

.08

.08

.OS

.08

.08

.08

.08

.08

.08

.06

.05

.05

.04

.04

.05

.04

.04

.04

.04

.04

.04

.04

.04

.05

.06

.05 

.05

.05

Apr.

0.04 

.04

.04

.04

.04

.04

.03

.03

.04

.03

.02

.03

.03

.02

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03 

.02

Secondfoot-days

6.39

6.93

3.79

.94

.150

.062

.031

.030

23.857

May

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

.01

.01 

.01

.01

Maximum

1.3

.26

.17

.04

.01

_

_

-

1.3

June

\e0.005

-

Minimum

0.08

.17

.08

.04

.02

.01

_

_

-

-

July

>e0.002

Aug.

ieO.OOl

Mean

0945

.206

.224

.135

.031

.010

.005

.002

.001

.0654

Sept.

> eO.OOl

-

Runoff in 

acre- feet

13

14

7.5

3.6

1.9

.6

.3

.1

.06

.06

48

e Maximum daily discharge during period less than O.O1 sec.-ft.
LOS ANGELES RIVER BASIN 117

Arroyo Seco near Pasadena, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°13'20" long 

iia-10'40", near north line of sec. 31, T. 2 N., R. 12 W., 1.5 miles upstream from 

Mlllard Canyon and 5.5 miles northwest of Pasadena. Datum of gage, 1,397.88 feet 

above mean sea level (datum of 1929).

Drainage area.- 16.4 square miles.

Records available.- December 1910 to September 1947.

Average discharge^- 33 years (1913-15, 1916-47), 10.7 second-feet.

Extremes.- Maximum discharge during year, 600 second-feet Dec.1 25 (gage height, 4.05 

reet); minimum dally, 0.5 second-foot on many days.

1910-47: Maximum discharge, 8,620 second-feet Mar. 2, ]J938, by slope-area method; 

practically no flow for several months In some years.

Remarks.- Records good except those for period of no gage-height record, which are fair 

no diversions above station. Minor regulation at debris dam 1.5 miles upstream.

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.

4.1 

1.8 

1.4 

2.1 

2.1

2.1 

1.8 

1.8 

1.8 

1.7

1.5 

1.1 

1.0 

1.0 

1.4

1.7 

1.8 

1.9 

2.2 

1.8

1.7 

1.7 

1.8 

1.7 

1.7

1.5 

2.0 

2.1 

2.1 

2.0 

2.0

Nov.

1.8 

1.5 

1.5 

1.5 

1.5

1.7 

1.7 

1.7 

1.7 

1.7

2.2 

18 

140 

57 

28

16 

11 

9.4 

8.4 

181

47 

25 

f59 

a46 

f37

26 

22 

20 

16 

14

Dec.

12 

10 

9.2 

8.6 

8.4

15 

16 

11 

8.4 

7.7

7.7 

7.4 

7.2 

7.2 

7.0

7.0 

6.5 

6.5 

6.3 

6.0

6.0 

6.0 

6.0 

7.2 

103

206 

145 

85 

63 

49 

38

Jan.

36 

35 

32 

28 

25

22 

19

17 

17 

16

15 

15 

14 

14

14

13 

12 

12 

12 

10

10 

10 

9.7 

9.7 

9.4

8.9 

8.9 

18 

16 

9.7 

9.4

Feb.

9.2 

8.9 

8.6 

8.4 

8.4

8.4 

8.1 

7.9 

7.7

7.2 

7.2 

7.0 

7.0 

6.8

6.8 

6.8 

7.7 

7.4 

7.2

7.0 

6.8 

6.5 

6.3 

6.3

6.0 

6.0 

5.8

Month

Goto 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Apri

June 

Jnly 

Augu 

Sept

Ha

 bar.................... ................

lendar year 1946 ......................

ary

1. .....................................

St. ....................................

ember. .................................

ter year 1946-47 ......................

Mar.

5.8 

5.8 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.4

5.4 

5.4 

5.2 

5.2 

5.2

5.2 

5.0 

5.2 

5.4 

5.8

7.2 

7.2 

6.8 

6.0 

5.5

5.2 

5.2 

8.7 

9.8 

7.9 

7.2

Apr.

6.5 

6.2 

6.3 

6.5 

6.0

5.6 

5.4 

5.2 

4.8

4.2 

4.0 

3.8 

3.6 

3.4

3.4 

3.4 

3.6 

3.8

4.0

4.6 

4.8 

4.2 

4.2 

4.2

4.2 

4.2 

4.2

4.0 

4.0

Second 

foot-days

56.4 

799.3 

889.3

3,531.0

497.7 

204.8 

185.7 

136.7 

82.3 

57.9 

35.8 

17.3 

17.0

2,980.2

May

3.3 

3.1 

2.6 

2.4 

2.4

2.6 

2.6 

2.7 

2.7

2.7 

2.9 

2.7 

2.7 

3.1

2.9 

2.6 

2.4 

2.2 

2.2

2.2 

2.4 

2.6 

2.6 

2.8

2.2 

3.1 

3.1 

2.6 

2.7 

3.1

Maximum

4.1 

181 

206

362

36 

9.2 

9.8 

6.5 

3.3 

2.7 

1.5 

.7 

.7

206

Peak discharge.- Nov. 13 (11:45 a.m.) 420 sec. -ft.; Nov. 20 (lo t

June

2.7 

2.6 

2.4 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

2.1 

2.0 

1.8 

1.8 

1.7

1.7 

1.5 

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

Minimum

1.0 

1.5 

6.0

.5

8.9 

5.8 

5.0 

3.4 

2.2 

1.5 

.8 

.5 

.5

.5

July

1.5 

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 

1.1

 1.1 

1.1 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

.9 

.9 

.8

Aug.

0.7 

.7 

.7 

.7 

.7

.7 

.6 

.7 

.6 

.6

.6 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5 

.5

Mean

1.82 

26.6 

28.7

9.67

16.1 

7.31 

5.99 

4.56 

2.65 

1.93 

1.15 

.56 

.57

8.16

Sept.

0.5 

.5 

.5 

.5 

.5

.5 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.5 

.5

.5 

.7 

.7 

.6 

.6

.6 

.6 

.6 

.6 

.6

.5 

.5 

.6 

.6 

.7

Runoff in 

acre-feet

112 

1,590 

1,760

7,000

987 

406 

368 

271 

163 

115 

71 

34 

34

5,930

i.m.) 580 see. -ft.; Nov. 23 (1:45

p.m.) 140 see.-ft.; Dec. 25 (11 p.m.) 600 see.-ft.

a No gage-height record; discharge computed on basis of normal recession curve, 

f Computed on basis of partly estimated gage-height record.

854211 O - 49 - 9
118 LOS ANGELES RIVER BASIN

Rio Hondo near Montebello, Calif.

Location.- Water-stage recorder, lat. 34°01'55", long. 118°04'15", in Potrero Grande 

Grant, at Montebello oil field, about 1,000 feet upstream from Mission Bridge and 2 

miles northeast of Montebello, Los Angeles County. Altitude of gage, ihout 200 feet.

Records available.- October 1928 to September 1947. 

Average discharge.- 19 years, 65.9 second-feet.

Extremes.- Maximum discharge during year, 4,950 second-feet Nov. 13 (gage height, '-i.n? 

reet); minimum, 10 second-feet Aug. 11.

1928-47: Maximum discharge, 28,000 second-feet Mar. 2, 1938; minimum, 0.3 secondfoot Dec. 1, 1933.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. K. Hedger, chief engineer.

Discharge, in seoond-fset, 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.

138

39

37

34

36

34

39

39

41

37

36

37

34

37

37

80

41

41

42

42

42

42

42

41

39

41

57

44

42

41

41

Nov.

41

39

34

36

37

37

39

61

42

39

87

642

86G

276

54

53

50

50

52

657

101

85

348

133

91

81

170

370

348

301

-

Dec.

286

295

288

208

199

193

266

194

185

185

193

190

190

198

208

205

105

47

41

42

41

39

41

60

811

634

426

244

156

76

57

Jan.

53

65

49

23

22

28

33

36

45

45

45

47

49

50

45

50

50

50

39

44

45

47

47

45

45

41

45

100

53

50

47

Feb.

45

44

45

44

49

47

50

52

115

55

57

55

53

53

52

50

64

50

50

50

52

53

45

49

52

52

53

53

.

_

-

Month

October ....................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March.. ....................................

April ......................................

Mav may ........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47. .....................

Mar.

52

49

51

48

79

47

47

45

44

44

42

41

39

39

44

42

49

50

52

57

65

60

53

53

52

49

47

70

47

42

45

Apr.

47

45

63

50

53

47

49

49

44

44

39

44

37

41

39

37

37

37

39

41

44

44

44

42

45

42

41

42

44

42

-

Secondfoot-days

1,373

5,220

6,303

29,986

1,433

1,489

1,544

1,312

1,288

1,144

1,088

1,089

1,132

24,415

May

44

44

42

37

41

41

42

41

41

43

34

41

34

42

41

4242'

41

42

42

42

42

44

44

' 36

42

65

37

41

39

39

Maximum

138

866

811

866

100

115

79

63

35

45

41

42

44

866

June

3642'

37

37

39

39

41

41

42

44

45

41

41

39

36

39

39

37

37

39

36

29

33

34

28

39

42

39

34

39

-

Minimum

5^

34

3£

24

Z'i

44

3£3'

34

2£

2E

22

3]

21

July

37

34

34

33

36

34

39

39

39

41

41

39

37

37

34

33

34

34

34

25

28

25

25

34

36

36

36

39

39

39

37

Aug.

36

39

36

3-7

36

36

34

42

34

23

25

28

33

36

37

36

33

37

36

36

36

41

41

34

39

39

39

34

34

33

29

Mean

44.3

174

203

82.2

46.2

53.2

49.8

43.7

41.5

38.1

35.1

35.1

37.7

66.9

Sept.

31

34

33

34

36

36

34

37

37

37

37

39

37

34

39

37

44

41

39

39

34

39

41

41

39

44

39

37

41

42

-

Runoff in 

acre-feet

2,720

10,350

12,500

59,480

2,840

2,950

3,060

2,600

2,550

2,270

2,160

2,160

2,250

48,410
LOS ANGELES RIVER BASIN 119

Rio Hondo near Downey, Calif.

Location.- Water-stage recorder, lat. 33°56'40", long. 1180 09'5q", In San Antonio Grant, 

on Btewart 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 1947. 

Average discharge.- 19 years, 34.6 second-feet.

Extremes.- Maximum discharge during year, 5,950 second-feet Nov. 13 (gage height, 10.48 

reet); no flow at times.

1928-47: 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. K. Heager, chief engineer.

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 

1.5

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30

31

Oct.

5.4 

3.7 

.7 

1.3 

2.6

4.0 

3.7 

3.2 

3.7 

4.8

4.5 

3.2 

4.5 

3.7 

3.1

2.7 

2.0 

2.4 

2.6 

3.1

3.7 

2.7 

4.2 

3.2

3.1

2.7 

3.2 

2.2 

2.4 

2.6 

2.9

Nov.

2.4 

2.2 

2.0 

1.9 

2.2

2.9 

2.0 

1.9 

1.7 

1.9

1.9 

428 

757 

272 

31

31 

28 

29 

31 

763

98 

31 

561 

62 

9.1

2.3 

5.8 

9.2

13 

16

Dec.

20 

23 

27 

30

33

149 

33 

77 

56 

66

69 

86 

83 

92 

86

92 

83 

28 

15 

15

13 

9.9 

8.2 

12 

726

923 

539 

72 

84 

59 

41

Jan.

37 

29 

28 

26 

18

16 

18 

16 

12 

11

11 

9.9 

11 

12 

9.9

9.9 

9.9 

8.2 

11 

6.5

7.4 

7.4 

7.4 

7.4 

6.0

5.6 

6.0 

50 

13 

6.0 

5.1

Feb.

3.7 

2.7 

1.8 

1.8 

1.0

2.3 

2.7 

3.2 

51 

23

5.1

4.1

.8 

.8

0 

0 

5.1 

.8 

.8

.8 

.8 

.6 

.6 

1.6

1.0 

.6 

1.6

Month

Octc 

Neve 

Deoe

Ca

Janu 

Febr 

Hare 

Apr! 

Hay

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber . ...................................

lender year 1946 

ary

1. .....................................

St. ....................................

ter year 1946-47 ...............

Mar.

2.3 

1.8 

2.7 

4.2 

45

5.6 

2.3 

2.7 

1.6 

1.0

1.4 

1.8

.6 

1.4

.4 

.2 

.4 

.8 

2.7

4.6 

5.6 

5.6 

5.6 

2.7

3.2 

5.6 

5.6 

5.1 

2.3 

1.6

Apr.

1.8 

2.7 

1.6 

3.2

1.4

1.4 

1.4 

2.3 

2.7 

1.8

1.8 

1.8

1.8 

1.8

3.2 

2.3 

2.7 

2.7 

4.2

2.7 

2.3 

2.7 

3.2 

1.8

2.7 

3.7 

2.7

3.7 

4.6

Seccndf cot-days

97.8 

3,200.4 

3,650.1

10,107.0

431.6 

120.1 

127.6 

74.1 

96.7 

57.1 

41.3 

67.6 

26.8

7,991.2

May

5.6 

3.2 

5.1 

3.2 

2.7

1.0 

2.3 

2.3 

2.7 

3.2

2.3 

3.2

2.7 

3.2

5.1

5.6 

4.6 

5.1

4.6 

3.7 

3.2 

1.8 

2.7

3.2 

1.6 

1.2 

3.2 

2.3 

1.6

Maximum

5.4 

763 

923

923

50 

. 51 

45 . 

4.6 

5.6 

3.7 

3.7 

5.6 

5.1

923

June

1.6 

2.3 

2.7 

2.3 

3.2

2.7 

3.7 

3.2 

2.7 

1.6

1.6 

2.7

.6 

1.0

1.0

1.2 

2.3 

2.7

1.0 

2.7 

1.8 

1.8 

2.3

1.8 

1.2 

.6 

.8 

.8

Minimum

0.7 

1.7 

8.2

0

5.1

o

.2

j i:S 1 -.I

0 

0

0

July

2.3 

1.6 

1.2 

.2 

1.0

1.2 

1.0 

.8 

.8 

1.0

1.8

1.4

2.7 

2.3

2.7

1.2 

.8 

2.3

.6 

.6 

2.3 

1.0 

1.8

.4 

.8 

1.6 

.2 

.4 

.2

Aug.

0.4 

.8 

1.0

.s

.6

.8 

1.6 

3.7 

4.6 

3.7

.4 

0

1.6 

1.6

3.2

1.6 

1.6 

2.7

2.3 

3.2 

3.2 

5.6 

5.1

3.2 

2.3 

5.1 

8.9 

-.8 

.6

Mean

3.15 

107 

118

27.7

13.9 

4.29 

4.12 

2.47 

3.12 

1.90 

1.33 

2.18 

.89

21.9

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

.6

.4 

1.0

1.0

1.4

1.2 

0 

1.6 

5.1 

2.3

1.2 

.8 

.8 

.4 

.4

1.6 

.4 

1.0 

3.2 

1.0

Runoff in 

acre-feet

194 

6,350 

7,240

20,050

856 

238 

253

147 

192 

113 

82 

134 

53

15,850
120 10S ANGELES RIVER BASIN

Sawpit Creek near Monrovia, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°10 : 25", long. 117°59 I 20", 

 IrrTJEfSWi sec. 13, T. 1 N., R. 11 W., 0.1 mile downstream from Monrovia Creek, 0.3 mile

downstream from Sawpit Dam, and 1.5 miles north of Monrovia. Altitude of gage, about

1,100 feet (from topographic'map).

Drainage area.- 5.3 square miles.

Records available.- November 1916 to September 1947.

Average discharge.- 30 years (1917-47), 1.33 second-feet; including diversion by Monrovia 

pipe line, au years, 2.85 second-feet.

Extremes.- Maximum discharge during year, 46 second-feet Dec. 26 (gage height, 1.39 feet); 

no flow during several periods.

1916-47: Maximum discharge, about 2,000 second-feet Apr. 7, 1926, estimated from 

flow of Rogers Creek; no flow during parts of most years.

Remarks.- Records good. Flow regulated by Sawpit Dam on Sawpit Creek; diversion by city 

or Monrovia from Monrovia Creek.

Cooperation.- Four discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer. Records of diversion to Monrovia pipe 

line furnished by city of Monrovia.

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.

0.1

r.i

ro

0

0

0

0

0

0

0

0

0

0

6.8

7.6

4.4

4.3 

3.8

.1

e.02

0

0

0

.1.1

I e.Ol

Nov.

0

0

0

0

0

0

0

.2

N

1 e.Ol

j

.8

3.0

1.2

.1

.

V e.Ol

J

11

7.0

f3.3

aS.O

a4.0

f3.5

2.2

2.2

1.3

1.0 

.7

Dec.

0.6

.6

.4

.3

.3

.4

.3

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1 

.1

.1

.1

.1

.1

.1

.1

6.3

24

19

11

8.2 

7.2 

6.4

Jan.

8.5

7.5

7.2

7.0

5.7

.2

.1

.1

. e.02

.2

> e.Ol

Month

October ..........................

November .........................

December .........................

Calendar year 1946 ............

January ..........................

February .........................

March ......... ..................

April ............................

May ..............................

June .............................

July .............................

August ...........................

September ........................

Water year 1946-47 ............

Feb.

 eO.Ol

.3

3.2

6.6

.1

e.06

.2

.2

i

\ e.02

|

0

0

0

0

0

0

0

Second 

foot-days

27 .53

4e!s7

87.3

240.78

36.91

10.98

.2

0

0

0

0

3.0

.12

212.59

Mar.

0

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0 

0

0

Apr.

Maximum

7.6

11

24

24

8.5

6.6

.1

0

0

0

0

1.0

24

May

Minimum

' 0

o

.1

0

0

0

0

0

0

0

0

0

June

Mean

0.887

1.55

2.8-2

.660

1.19

.392

.01

0

0

0

0

.10

.004

.582

July Aug.

0.5

.9

1.0

.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 

0 

0

Runoff in 

acre-feet

55

92

173

477

73

22

.4

0

0

0

0

6.0

.2

422

Sept.

0

0

0

e.02

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

Diversion 

(acre-feet) t

77

103

146

1,330

182

137

131 -

110

98

89

70

67

64

1,270

t Diversion to Monrovia pipe line.

a NO gage-height record; discharge computed on basis of records for nearby stations.

e Daily discharge less than 0.1 sec.-ft.

f Computed on basis of partly estimated gage-height record.
LOS ANGELES RIVER BASIN 

Santa Anita Creek near Sierra Madre, Calif.

121

Location.- Water-stage recorder, lat. 34°11'30", long. 118°01'00", in SW^NE^ sec. 10, 

TTTTT., R. 11 W., at head of Hermits Palls, 1 mile upstream from Big Santa Anita Dam 

and 4 miles northeast of Sierra Madre. Datum of gage is about 1,475 feet above mean 

sea level.

Drainage area.- 10.5 square miles.

Records available.- July 1916 to September 1947.

Average discharge.- 31 years, 6.45 second-feet.

Extremes.- Maximum discharge during year, 346 second-feet Nov. 20 (gage height, 4.32 feet); 

minimum daily, 0.5 second-foot Sept. 2-7, 13-16, 26-28.

1916-46: Maximum discharge, about 5,200 second-feet Mar. 2, 1938, based on inflow 

to Big Santa Anita flood-control reservoir; practically no flow Aug. 18 to Sept. 14, 

1929.

Remarks.- Records good. No diversion above station.

Cooperation.- Thirty-seven discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Hedger, chief engineer.

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.

5.0 

2.0 

1.7 

1.8 

1.5

1.3 

1.2 

1.1 

1.1 

1.0

1.0 

1.0 

1.0 

1.0

1.1

2.2 

1.8 

1.6 

1.5 

1.3

1.3 

1.3 

1.3 

1.2 

1.1

1.1 

2.0 

2.2 

1.7 

1.6 

1.5

Nov.

1.4 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.7 

1.3 

1.3

2.0 

21 

67 

20 

10

6.6 

5.0 

4.1 

3.6 

117

32 

17 

39 

28 

20

15 

13 

11 

9.5 

9.0

Dec.

8.1 

7.3 

6.8 

6.8 

6.6

8.1 

7.1 

6.4 

6.2 

5.9

5.7 

5.5 

5.2 

5.0 

5.0

4.8 

4.6 

4.6 

4.5 

4.5

4.3 

4.1 

4.3 

4.8 

65

124 

100 

69 

51 

40 

33

Jan.

28 

25 

22 

20 '18

18 

16 

15 

14 

14

13 

12 

12 

12

11

11 

10 

9.8 

9.5 

9.3

9.0 

8.7 

8.4 

8.1 

7.9

7.9 

7.6 

14 

9.5 

8.7 

8.1

Feb.

7.6 

7.3 

6.8 

6.8 

6.6

6.4 

6.4 

6.4 

7.2 

6.8

6.4 

6.2 

5.9 

5.7 

5.7

5.5 

5.9 

6.2 

5.9 

5.9

5.5 

5.2 

5.0 

5.0 

5.0

5.0 

5.0 

4.8

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Da

ber. ...................................

mber......... ..........................

lendar year 1946 ......................

ary

1. .....................................

ember. .................................

ter year 1946-47 ......................

Mar.

4.8 

4.8 

5.0 

4.8 

4.8

4.6 

4.6 

4.6 

4.5 

4.5

4.5 

4.3 

4.1 

3.9 

3.9

3.9 

3.7 

3.9 

4.3 

4.5

4.5 

4.3 

4.3 

3.9 

3.7

3.7 

3.9 

7.1 

5.2 

4.6 

4.3

Apr.

4.3 

4.3 

4.3 

4.3

4.1

4.1 

3.9 

3.7 

3.6 

3.4

3.4 

3.1 

3.1 

2.9 

2.9

2.9 

2.9 

3.2 

3.4 

3.4

3.6 

3.7 

3.7 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.2

May

2.8 

2.7 

2.6 

2.4 

2.6

2.6 

2.6 

2.6 

2.7 

2.7

2.7 

2.7 

2.6 

2.8 

2.8

2.7 

2.6 

2.4 

2.3 

2.3

2.3 

2.4 

2.6 

2.4 

2.2

2.2 

2.7 

2.6 

2.6 

2.7 

2.7

fccHtys ""^

47.5 5.0 

462.7 117 

618.2 124

2,166.6 124

397.5 28 

168.1 7.6 

137.5 7.1 

107.0 4.3 

79.6 2.8 

62.4 2.6 

32.6 1.5 

25.8 1.0 

18.9 1.1

2,157.8 124

June

2.6 

2.6 

2.6 

2.6 

2.6

2.4 

2.3 

2.3 

2.4 

2.4

2.3 

2,0 

1.9 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

2.0

2.0 

1.9 

1.8 

1.8 

1.9

1.9 

1.9 

1.9 

1.8 

1.7

Minimum

l.C 

1.2

4.:

7.e

4.E 

3.7 

2.S 

2.2

1.7 

.7 

.7 i

.E

July

1.5 

1.5 

1.4 

1.3 

1.2

1.2

1.1 

1.1 

1.1 

1.1

1.1 

1.2 

1.1 

1.1 

1.1

1.1 

1.1 

1.0 

1.0 

.9

.9

 1.0 

1.0 

1.0 

1.0

.9 

.8 

.7 

.7 

.7 

.7

Aug.

0.7 

.9 

.9 

.8 

.7

.7 

.7 

.8 

1.0 

.9

.9 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.9 

1.0 

.9 

.8 

.8

.8 

1.0 

1.0 

.9 

.8 

.7

Sept.

0.6 

.5 

.5 

.5 

.5

.5 

.5 

.7 

.7 

.8

.7 

.7 

.5 

.5 

.5

.5 

.8 

1.1 

.9 

.8

.7 

.7 

.7 

.7 

.6

.5 

.5 

.5 

.6 

.6

11=,,, Runoff in *ean acre-feet

1.53 94 

15.4 918 

19.9 1,230

5.94 4,300

12.8 788 

6.00 333 

4.44 273 

3.57 212 

2.57 158 

2.08 124 

1.05 65 

.83 51 

.63 37

5.91 4,280

Peak discharge.- Nov. 13 (ll a.m.) 222 sec. -ft.; Nov. 20 (10:30 a.m.) 346 sec. -ft. ; Dec. 26
122 LOS ANGELES RIVER BASIN

Little Santa Anita Creek near Sierra Madre, Calif.

Location.- Water-stage recorder and concrete control, lat. 34 0 11'15", long. 1180 02'35", 

near center of NW? sec. 9, T. IN., 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 1947.

Average discharge.- 30 years (1916-25, 1926-47), 1.00 second-foot.

Extremes.- Maximum discharge during year, 60 second-feet Nov. 13 (gage height, 2.11 

reet); minimum daily, 0.1 second-foot on many days.

1916-47: 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, 

1985.

Remarks.- Records good. No diversion above station.

Cooperation.- Nine discharge measurements furnished by Los Angeles County Flood Control 

JJistrict, through H. E. Hedger, chief engineer.

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.

0.6 

.2 

.2 

.2 

.2

.2

.1 

.1 

.1

.1

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.?.

.1 

.3 

.3 

.2 

.2 

.2

Nov.

0.2 

.2 

.2 

.2 

.2

.2

.4

2.6 

7.8

1.3

.8 

.6 

.5 

.5 

13

4.3 

2.3 

4.3 

4.1 

3.1

2.6 

2.2 

2.0 

1.7 

1.6

Dec.

1.5 

1.3 

1.2 

1.2 

1.1

1.2

.9 

.9 

.-9

.8

.8 

.8 

.8 

.7 

.7

.7 

.7 

.7 

.8 

8.5

15 

15 

11 

9.3 

7.5 

6.2

Jan.

5.1 

4.7 

4.3 

3.7 

3.4

2.8

2 3

2.2 

2.1 

2.1

1.9

1.8 

1.7 

1.7 

1.6 

1.6

1.5 

1.4 

1.4 

1.4 

1.3

1.2 

1.2 

2.1 

1.5 

1.4 

1.3

Feb.

1.2 

1.2 

1.1 

1.1 

1.1

1.1

1.1 

1.0 

1.0

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.8 

.8

.9 

.9 

.9

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri

May

June 

July 

Augu 

Sept

Ha

mber ...................................

lendar year 1946 

ary

h. .....................................

St. ....................................

ember ..................................

ter year 1946-47 ......................

Mar.

0.9 

.9 

.9 

.9 

.9

g

.8

.8 

.8 

.7

.7

.7 

.7 

.7 

.8 

.8

.8 

.8 

.8 

.8 

.7

.7 

.7 

1.0 

.8 

.8 

.8

Apr.

0.8 

.7 

.8 

.7 

.7

.7

.6 

.6 

.6

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.5

Secondfoot-days

6.3 

60.6 

95.6

316.9

68.9 

27.7 

24.7 

19.0 

15.1 

11.4 

5.9 

3.8 

3.3

342.3

May

0.5 

.5 

.5 

.5 

.5

.5

.5 

.5 

.5

.5

.5 

.6 

.5 

.5 

.5

.5 

.5 

.5 

.4 

.4

.4

.5 

.5 

.4 

.5 

.5

Maximum

0.6 

13 

15

15

5.1 

1.2 

1.0 

.8 

.5 

.5 

.3 

.2 

.2

15

June

0.5 

.5 

.5 

.5 

.5

.4

.4 

.4

.3

.3

.3 

.3 

.3 

.3 

.4

.4

.4 

.3 

.3 

.4

.4 

.4 

.4 

.3 

.3

Minimum

0.

.]

l.Z 

.£

.

'.] 

.] 

.]

.]

July

0.3 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2

.2

.2 

.Z 

.2 

.2 

.2

.2 

.2 

.2 

.2

.2

.2 

.2 

.1 

.1 

.1 

.1

Aug.

0.1

.1 

.1

.1

.1 .1

.2

.2 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

!l 

.1

.1 

.2 

.2 

.2 

.1 

.1

Mean

I 0.20 

> 2.02 

r 3.08

L .87

2.22 

.99 

.80 

.63 

I .49 

.38 

.19 

.12 

.11

.94

Sept.

0.1

.1 

.1 

.1 

.1

.1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1

.2 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Runoff in 

acre-feet

12 

, 120 

190

628

137 

55 

49 

38 

30 

23 

12 

7.5 

6.5

680

Peak discharge.- Nov. 13 (1O:15 a.m.) 60 sec.-ft.; Nov. 2O (9:30 a.m.) 37 sec.-ft.; Dec. 25 (ll:3O 

p.m.) 31 see.-ft.
LOS ANGELES RIVER BASIN 133

Eaton Creek near Pasadena, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°11'40", long. 118°06'15", 

in bfit sec. 3, T. IN., R. 13 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 area.- 6.5 square miles.

Records available.- March 1918 to September 1947.

Average discharge- 29 years', 2.77 second-feet. Average combined discharge of creek and 

diversion, 29 years, 4.11 second-feet.

Extremes.- Maximum discharge during year, 230 second-feet Nov. 13 (gage height, 2.10 

feet); no flow during most of year.

1918-4'': Maximum discharge, 3,400 second-feet Mar. 2, 1938, from record of inflow 

to Eaton flood-control reservoir; no flow for some periods in1 each year.

Remarks.- Records good below 70 second-feet and fair above. City of Pasadena has two 

surface diversions upstream and one infiltration 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 6.0 percent of the upstream diversions.

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. Nov.

o

o

o

o

o

0

0

0

o

o

o

18

62

21

6.5

.5

O

O

O

84

33

12

31

17

9.5

6.7

8.6

3.S

1.8

1.6

-

Dec.

1.9

.6

0

O

0

5.8

1.4

O

O

0

0

o

0

0

0

0

o

o

0

o

0

o

o

.4

35

58

53

28

18

14

15

Jan.

8.4

7.2

6.4

4.2

5.8

6.2

5.5

2.6

2.8

1.6

3.6

2.2

2.0

2.8

3.8

2.7

.2

O

0

O

0

O

O

0

0

0

O

6.0

3.3

0

0

Month

October ..........................

November .........................

December .........................

Calendar year 1946 ............

January ..........................

February .........................

March ......... ..................

April ............................

Bay ..............................

June .............................

July .............................

August ...........................

September ........................

Water 'year 1946-47 ............

Feb.

0

O

0

o

0

0

o

0

.6

.6

0

O

O

0

0

o

o

o

0

0

0

0

o

o

0

0

0

o

_

-

Secondfoot-days

o

317. 0

231.1

766.4

77 3

1.2

O

0

0

0

0

O

O

626.6

Mar. Apr.

Maximum

0

nd. O!

58

103

4

. 6

0

0

0

o

0

0

o

94

Bay

Minimum

O

0

o

o

0

0

0

o

0

0

0

0

0

0

June

Mean

0

10.6

7.45

2.10

2 49

.04

O

0

0

o

o

0

0

1.72

July Aug.

Runoff in 

acre-feet

0

629

458

1,520

153

2.4

0

0

0

0

O

0

0

1,240

Sept.

Diversion 

(aore-feet)t

58

158

196

1,32O

307

2O8

177

133

103

79

44

34

31

1,530

Peak discharge.- Nov. 13 (11 a.m.) 230 sec.-ft.; Nov. 2O (9 a.m.)

51 sec.-ft.; Dec. 26 (12:45 a.m.) 16O aec.-ft.s Dec-.. 27 (6:45 a.m.)

t Diversion by city of Pasadena. Records furnished by that city.

210 sec.-ft.; Nov. 23 (12 m.)

861 see.-ft.
124 LOS ANGELES RIVER BASIN

Mission Creek near Montebello, Calif.

Location.- Water-stage recorder, lat. 34°01'45", long. 118°04'07", In Paso de Bartolo 

Grant, at San Gabriel Boulevard Bridge, 2 miles northeast of Montebello, Los Angeles 

County.

Records available.- October 1932 to September 1947 in reports of Geological Survey. July 

ibiib to September 1932 (weekly discharge measurements only prior to September 1929) 

in files of office of Los Angeles County Flood Control District.

Average discharge.- 17 years (1939-37, 1938-47), 19.5 second-feet.

Extremes.- Maximum discharge during year, 80 second-feet Dec. 25 (gage height, 7.76- feet); 

minimum dally, 15 second-feet Apr. 16-18, Aug. 1, 7, Sept. 10-12.

1929-47: Maximum discharge not determined, occurred Mar. 2, 1938. A discharge of 

336 second-feet occurred Feb. 22, 1944 (gage height, 10.75 feet). Minimum discharge, 

4.8 second-feet Oct. 4, 1935.

Cooperation.- Records furnished by Los Angeles County Flood Control Dlstf-lct, through H. 

E. Meager, chief engineer.

Discharge, in second-feet, water year October 1946 to September 1947

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.

19

19

19

19

19

19

19

19

19

19

19

18

19

19

19

19

19

19

20

20

20

20

21

20

20

20

20

20

20

21

20

Nov.

20

20

20

20

20

20

20

20

20

21

21

26

40

31

23

21

20

20

19

28

25

22

36

30

24

23

22

22

22

22

-

Dec.

22

22

22

22

22

24

23

23

23

23

22

22

22

23

23

23

23

22

22

22

22

22

22

23

41

45

26

23

23

22

23

Jan.

23

23

24

24

24

24

24

24

24

23

24

24

23

23

24

24

23

23

23

24

24

23

23

24

24

24

24

25

24

23

23

Feb.

23

23

23

22

22

22

22

22

24

24

23

23

23

23

22

23

23

23

23

23

22

22

22

21

21

21

20

20

_

_

-

Month

December ...................................

Calendar year 1946 ......................

April ......................................

Mav

September. .................................

Water year 1946-47 ......................

Mar.

20

20

20

21

22

21

21

21

21

21

21

21

21

20

20

21

21

20

21

21

22

22

22

21

20

20

21

21

21

21

21

Apr.

20

20

20

20

20

20

20

20

20

19

18

17

17

17

16

15

15

15

16

16

16

17

17

17

17

17

18

18

18

18

Secondfoot-days

742

7,918

482

7,174

May

19

19

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

17

17

17

16

16

16

17

17

17

18

18

18

18

18

Maximum

45

45

17

45

June

18

18

18

18

18

18

18

18

18

19

19

19

18

19

19

19

18

18

18

18

19

19

18

18

18

18

18

18

18

18

Minimum

}C

22

1"

2^

^e

IE

IE

July

17

17

17

17

17

17

17

17

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

Aug.

15

16

16

16

16

16

15

16

16

16

16

16

16

16

16

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

Mean

£3 3

£3.9

£1.7

£2 3

16.1

19.7

Sept.

16

16

16

16

16

16

16

16

16

15

15

15

16

16

16

16

16

17

17

17

17

17

16

16

16

16

16

16

16

16

Runoff in 

acre-feet

1,470

15,690

956

14,230
BALLONA CREEK BASIN 125

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 1947.

Average discharge.- 19 years, 36.9 second-feet.

Extremes.- Maximum discharge during year, 9,630 second-feet Dec. 25 (gage height, 12.42 

reet); minimum, 0.7 second-foot Apr. 13.

1928-47: 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. Meager, chief engineer.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

6

11

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

175

7.8

7.5

6.7

8.3

6.0

6.7

7.O

7.O

7.0

7.2

6.3

6.3

5.4

3.8

100

7.5

6.5

7.0

6.7

7.2

8.0

8.0

7.3

7.3

7.3

43

5.8

5.8

5.8

5.8

Nov.

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

668

1,430

1,090

759

14

9.7

7.5

5.4

44

767

14

8.6

93O

15

15

15

15

14

13

12

-

Dec.

11

10

9.O

8.0

9.2

263

6.5

6.5

6.5

6.5

6.5

6.5

6.3

6.2

6.O

5.9

5.7

5.6

6.0

6.3

6.3

5.6

5.8

244

1,960

334

245

18

12

11

11

Jan.

7.0

10

9.0

1O

5.6

9.0

10

9.0

11

10

10

8.0

9.0

10

7.0

6.3

9.0

1O

7.0

9.0

10

9.O

9.0

10

11

9.0

10

283

12

9.0

10

Feb.

8.0

7.0

5.6

6.3

6.3

6.3

5.6

7.O

440

16

8.0

9.0

8.0

7.0

8.0

5.6

7.0

12

8.0

9.0

11

6.3

7.O

16

12

6.3

9.0

8.0

_

-

-

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

Hay

September. .................................

Water year 1946-47 ......................

Mar.

5.6

3.5

25

11

183

8.0

9.O

6.3

6.3

6.3

8.0

7.0

6.3

7.0

6.3

4.2

7.0

6.3

6.3

32

24

8.0

5.6

8.0

12

18

34

142

7.O

3.5

5.6

Apr.

5.6

5.6

13

8.0

5.6

4.9

5.6

8.O

7.0

8.0

6.3

7.0

4.9

6.3

7.O

7.O

8.O

10

10

6.3

8.0

12

9.0

9.0

7.O

7.0

2.8

7.O

10

9.0

-

Seoondfoot-days

5 9O4 2

3,249.9

14,344.9

266.1

13,257.0

May

10

13

11

7.0

10

10

9.O

9.0

10

17

8.0

11

1O

11

10

11

11

8.0

10

9.0

10

1O

12

8.0

8.0

10

24

11

8.0

7.0

9.0

Maximum

1,960

1,960

Pft «

18

1,960

June

8.0

8.0

10

10

11

11

10

8.O

10

11

11

11

11

11

8.0

10

12

10

9.0

9.0

9.0

8.0

8.0

8.0

9.0

12

11

11

9.O

11

- -

Minimum

3 8

5.6

3.8

4.9

2.8

July

12

9.O

12

10

9.0

7.0

10

12

11

12

10

11

9.0

11

9.0

9.0

1O

12

12

10

8.0

8.0

9.0

10

9.0

11

8.0

10

13

11

13

Aug.

13

11

11

8.0

11

10

10

12

11

9.O

9.0

12

11

13

13

12

7.O

12

10

5.6

7.0

12

13

9.0

13

10

11

9.0

10

12

9.0

Mean

105

39.3

8.87

36.3

Sept.

13

10

11

10

11

7.0

7.0

10

9.0

7.0

9.0

9.0

9.0

7.0

8.0

11

18

16

8.0

7.0

4.9

6.3

7.0

7.0

, 8.0

9.0

7.0

4.9

7.O

8.0

-

Runoff in 

acre-feet

6,450

28,460

1,320

528

26,300
126 TOPANGA CREEK BASIN

Topanga Creek near Topanga Beach, Calif.

Location.- Water-stage recorder, lat. 34°03'50", long. 118°35'10", in Boca de Santa 

Monica Grant, at highway bridge, 2 miles north of Topanga Beach, Los Angeles County.

Drainage area.- 17.9 square miles.

Records available.- January 1930 to September 1938, October 1939 to September 1947.

Average discharge.- 16 years (1930-38, 1939-47), 6.62 second-feet.

Extremes.- Maximum discharge during year, 567 second-feet Nov. 20 (gage height, b.03 

reetJ; minimum daily, 0.02 second-foot Oct. 25, 26.

1930-38, 1939-47: 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. K. Meager, chief engineer.

Discharge, in second-feet, water year October 1946 tc 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.

0.05

.05

.04

.04

.04

.03

.03

.03

.03

.03

.03

.03

.03

.04

.04

.05

.05

.05

.04

.04

.03

.03

.03

.03

.02

.02

.04

.04

.04

.04

.04

Nov.

0.04

.03

.03

.06

.06

.07

.07

.08

.08

.08

.3

.9

36

7.8

.3

.3

.2

.2

.2

86

5.6

1.3

61

9.5

2.8

1.5

.9

.5

.5

.5

-

Dec.

0.5

.4

.4

.4

.4

3.3

1.7

.6

.4

.3

.4

.4

.4

.4

.4

.5

.4

.3

.2

.2

.2

.2

.2

7.1

50

55

32

11

7.1

5.8

4.7

Jan.

3.6

2.4

1.9

1.7

1.5

1.5

1.5

1.3

1.1

1.1

1.3

1.3

1.3

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.2

.1

.1

6.1

1.1

.9

.6

Feb.

0.6

.5

.4

.4

.4

.4

.4

.4

1.1

1.5

.6

.6

.6

.6

.5

.4

.5

.5

.4

.4

.5

.6

.5

.6

.5

.5

.4

.4

_

_

-

Month

December ...................................

Calendar year 1946 ......................

April ......................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

0.

.

.

.5

.5

.5

.5

.6

.3

.2

.2

.2

.2

.2

.2

.2

.6

.6

.6

.5

.3

.2

.5

8.9

2.8

1.7

1.7

Apr.

1.1

.6

.3

1.3

.6

.9

.6

.5

.3

.2

.2

.2

.1

.05

.05

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Secondfoe t-days

1.13

185.3

687.98

15.2

.95

500.77

May

0.1

.1

.05

.05

.1

.2

.2

.2

.05

.05

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

Maximum

55

104

1.3

.05

86

June

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Minimum

0.02

.2

.02

.05

.03

.02

July

0.1

.1

.1

.1

.1

.05

.05

.05

.05

.05

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

Aug.

0.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

Mean

0.036

5.98

1.88

.293

.032

1.37

Sept.

0.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.04

.04

.04

.05

-

Runoff in 

acre-feet

368

1,370

1.9

994
MALIBU CREEK BASIN 127

Malibu Creek at Crater Camp, near Calabasas, Calif.

Location.- Water-stage recorder, lat. 34°04'30", long. 118°42'10", in SWtr sec. 18, T. 1 

B., R. 17 W., 0.8 mile downstream from Crater Camp and 6 miles southwest of Calabasas.

Drainage area.-103 square miles.

Records available.- January 1931 to September 1947.

Average discharge.- 16 years, 24.0 second-feet.

Extremes.- Maximum discharge during year, 820 second-feet Nov. 13 (gage height, 3.86 

reetJ; minimum daily, 0.1 second-foot on many days.

1931-47: 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 

M. K. Meager, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.2

.2

.2

.2

.3

.2

,2

.2

.2

.2

.2

.2

.2

.2

,2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.5

Nov.

0.5

.4

.2

.2

.1

.3

.2

.2

.2

.2

.2

.2

142

53

20

6.8

4.9

3.7

124

40

18

138

68

44

36

19

14

11

9.6

-

Dec.

8.4

6.8

6.1

5.5

4.9

8.7

15

14

13

10

8.8

6.8

6.4

5.8

5.5

4.9

4.9

4.9

4.6

4.0

3.7

3.4

8.9

44

57

50

39

29

27

22

Jan.

20

18

17

16

15

14

13

12

11

10

10

12

10

9.6

8.8

8.0

7.6

7.2

7.2

7.6

7.6

7.2

7.2

6.9

6.1

3.1

11

8.8

7.2

6.8

Feb.

5.8

5.5

5.2

5.2

4.9

5.5 5.5-

5.2

7.2

9.2

8.4

6.4

5.5

31

8.3

4.9

3.7

3.4

3.2

3.0

4.6

3.7

3.2

3.4

3.0

3.2

3.4

_

-

-

Month

December. ..................................

Calendar year 1946 .....................

April ......................................

Bay. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

3.2

3.2

3.4

3.4

4.6

3.4

3.7

4.0

4.3

4.0

3.4

2.7

2.5

2.5

2.7

3.0

3.0

3.2

3.7

4.3

4.6

4.6

3.7

3.4

2.7

2.5

6.1

6.8

5.2

4.6

Apr.

4.3

4.0

4.0

4.3

4.0

3.7

3.4

3.2

3.2

3.0

2.7

2.3

2.3

1.9

1.6

1.9

2.1

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.6

1.6

1.9

2.1

1.9

-

Seccndfcot-days

8.2

757.9

439.1

2,581.9

315.6

165.4

115.8

76.2

27.8

8.2

3.1

3.4

1,926.9

May

1.4

1.4

1.4

1.2

1.2

1.2

1.1

1.1

1.0

.9

1.0

1.0

1.0

1.0

.9

.9

.9

.8

.8

.8

.8

.8

.7

.5

.5

.6

.6

.5

.5

.5

Maximum

0.5

142

57

267

20

31

6.8

4.3

1.4

.1

.2

142

June

0.5

.4

.4

.3

.5

.4

.3

.1

.2

.2

.2

.1

3

.2

.2

.3

.3

.3

.3

.3

,3

.3

.3

.2

.2

.2

.2

.2

-

Minimum

0.

3.

6.

3.<

2..

1.

July

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

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

Mean

2 0.26

1 25.3

1 14.2

1 7.07

I 10.2

) 5.91

5 3.74

3 2.54

5 .90

.27

> .20

L .10

L .11

I 5.H8

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

.2

.2

.2

.2

-

Runoff in 

acre-feet

16

1,500

871

5,120

626

328

230

151

55

16

12

6.1

6.7

3,820
128 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 1947.

Average discharge.- 18 years, 18.8 second-feet.

Extremes.- Maximum discharge during year, 1/620 second-feet Dec. 26 (gage height, 7.77 

reet); minimum daily, 1.0 second-foot Oct. 2, 5, 11, 16.

1929-47: 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. 

K. Heager, chief engineer.

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

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.3

1.0

1.2

1.2

1.0

1.4

1.8

2.

2.

1.

1 .

1.

1.

1.

1.

1..

l.<

l.<

1.

1.4

2.0

1.9

1.6

1.4

1.5

1.8

1.9

1.9

1.6

1.4

Nov.

1.4

1.4

1.6

1.9

2.1

2.4

3.0

4.0

4.4

3.0

3.4

6.6

94

4.4

2.9

2.8

2.7

2.9

28

5.0

4.2

52

9.2

7.7

7.4

7.1

6.8

6.2

6.2

-

Dec.

5.9

5.6

5.3

5.3

5.3

13

11

10

9.8

8.6

7.7

7.1

8.0

10

11

10

10

11

11

13

13

15

20

51

371

67

62

62

62

59

Jan.

59

59

57

57

59

60

62

65

62

68

70

74

74

73

73

73

73

72

72

72

72

72

72

71

71

71

57

18

18

18

Feb.

19

19

19

19

20

20

20

20

21

21

21

21

22

39

39

39

39

44

53

53

54

55

55

56

56

56

56

_

-

Month

December. ...................................

Calendar year 19*6 ......................

March. .......... i ..........................

April. .....................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

55

55

55

54

54

54

52

11

11

11

11

11

11

11

11

10

10

9.7

9.4

9.0

9.0

9.0

9.0

9.0

9.0

9.0

13

13

13

13

Apr.

12

12

12

12

11

11

11

10

10

9.6

9.3

8.8

8.3

7.2

6.7

6.2

6.1

6.0

5.9

5.8

5.8

5.7

5.6

5.6

5.6

5.6

5.6

5.6

5.6

Secondfoot-days

971.6

3,614.8

239 4

64.5

5,624.3

May

5.6

5.6

5.4

5.3

5.1

4.9

4.8

4.6

4.6

4.7

4.7

4.8

4.8

4.9 

4.9

4.9

4.9

4.8

4.8

4,. 8

4.7

4.7

4.7

4.7

4.8

4.8

4.8

4.9

4.9

4.8

4.7

Maximum

371

371

2.5

371

June

4.6

4.4

4.3

4.2

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.8

4.7

4.6

4.6

4.5

4.5

4.3

4.1

3.9

3.7

3.5

3.3

3.1

3.3

3.5

3.7

4.0

Minimum

5.!

.4

1.8

l.C

July

4.2

4.4

4.6

4.3

4.0

3.7

3.4

3.1

2.9

2.8

2.7

2.6

2.5

2.3

2.2

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.6

2.6

2.5

2.4

2.4

2.3

2.2

2.2

Aug.

.2.2

2.3

2.4

2.4

2.5

2.6

2.6

2.6

2.6

2.5

2.5

2.5

2.5

2.5

2.4

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.4

Mean

31.3

I 9.90

2 40

2.15

15.4

Sept.

2.4

2.5

2.5

2.5

2.5

2.4

2.3

2.3

2.2

2.1

2.1

2.1

2.2

2.2

2.3

2.3

2.3

2.2

2.1

2.0

2.0

1.9

1.8

1.8

1.8

1.8

1.9

1.9

1.9

Runoff in 

acre-feet

1,930

7,170

128

11,150
SANTA CLARA RIVER BASIN 129

Piru Creek near Piru, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°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 1947. 

uctover iyav to September 1934 at site 1.5 miles downstream, at Piru.

Average discharge.- 20 years (1927-47), 69.1 second-feet.

Extremes.- Maximum discharge during year, 2,500 second-feet Dec. 25 (gage height, 4.93 

feet); minimum dally, 1.2 second-feet July 30 to Aug. 5.

1911-13, 1927-47: Maximum discharge, 35,600 second-feet Mar. 2, 1938, by slopearea method; no flow during parts of some years.

Remarks.- Records fair except those above 50 second-feet, which are poor. Doheny ditch 

diverts water for irrigation above station, and Piru Water Co.'s ditch diverts below.

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.

5.5

12

13

12

10

9.0

7.0

7.0

6.5

6.0

6.0

6.0

6.0

6.5

7.5

12

13

10

9.0

8.5

8.0

7.5

10

11

10

10

10

9.5

9.5

9.5

9.5

Nov.

9.5

10

10

10

10

10

11

12

12

12

15

44

f550

f!50

a60

f50

43

39

38

360

230

75

350

f310

140

95

72

60

f51

f49

-

Dec.

f47

f45

f43

f42

a41

a 40

a50

a40

a36

334

f33

34

35

f33

34

35

34

33

33

33

33

33

33

110

2,000

1,200

615

365

285

210

135

Jan.

110

100

95

90

86

80

75

71

68

66

65

65

63

60

55

50

48

49

48

48

47

47

47

45

44

42

41

51

48

43

41

Feb.

40

39

38

38

38

37

37

38

43

55

48

41

40

37

37

37

39

41

37

37

35

35

33

31

30

30

30

30

_

-

Month

October ....................................

November. ..................................

December. ...................................

Calendar year 1S46 ......................

January. ...................................

February. ..................................

March............ ..........................

April ......................................

May........................................

June .......................................

July........... ............................

August .....................................

September. .................................

Water year 1946-47 ......................

Peak discharge.- Nov. 13 (7:30 a.m.) 1,500

Mar.

29

29

29

29

30

31

30

30

30

30

29

27

27

27

27

27

27

27

28

29

35

34

29

27

25

25

27

42

35

31

29

Apr.

28

28

28

28

28

27

27

26

26

26

26

25

24

24

24

20

19

19

19

19

20

22

22

22

30

34

30

f20

19

17

Seoondfoot-days

277.0

2,887.5

5,774

20,729.7

1,883

1,051

911

727

430.5

174.4

75.8

51.9

62.9

14,311.0

May

17

16

15

14

15

16

17

17

16

17

17

16

17

17

16

15

14

14

12

12

13

13

13

13

12

9.5

10

10

8.0

9.0

10

Maximum

13

550

2,000

2,000

110

55

42

34

17

10

3,8

1.8

2.6

2,000

June

10

8.5

8.5

9.0

8.5

8.0

7.5

9.0

9.0

6.5

5.5

5.0

5.0

5.0

5.5

5.5

5.0

4.6

3.4

3.8

4.2

3.8

3.8

4.2

3.4

3.4

4.2

5.0

5.0

4.6

-

Minimum

5. 33'9»

2.

41

30

25

17

8.

3.

1.

1.

1..

1.

July

3.4

3.0

3.0

3.8

3.4

3.4

3.4

2.6

2.6

2.6

2.2

2.2

2.6

1.8

1.8

1.8

1.8

1.8

2.6

3.4

2.2

2.2

2.2

2.6

2.2

1.8

2.6

2.6

1.8

1.2

1.2

Aug.

1.2

1.2

1.2

1.2

1.2

1.5

1.5

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.5

Mean

5 8.94

5 96.2

186

3 56.8

60.9

37.5

29.4

24.2

D 13.9

1 5.81

2 2.45

I 1.67

5 2.10

2 39.2

Sept.

1.5

1.8

1.8

2,0

2.2

2.6

2.6

2.6

2.6

2.6

2.2

1.8

1.5

1.8

1.5

1.8

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

1.8

1.8

2.2

2.2

2.2

-

Runoff in 

acre-feet

549

5,730

11,450

41,110

3,740

2,080

1,810

1,440

854

346

150

102

125

28,380

sec. -ft. ; Nov. 2O (6 p.m.) 850 sec. -ft.; Nov. 23 (8:30

a No gage-height record; discharge computed on basis of wea 

terpolation.

f Computed on basis of partly estimated gage-height record.

or In-
130 SANTA CLARA RIVER BASIN

Hopper Creek near Plru, Calif.

Location - Water-stage recorder, lat. 34°23'55", long. 118M9I40", on south line of NW£ 

sec."25, T. 4 N., R. 19 W., at highway bridge, 2 miles southwest of Piru.

Drainage area.- 23.0 square miles.

Records available.- October 1930 to September 1932, October 1933 to September 1936, 

uccooer lyiiv to September 1947.

Average discharge.- 15 years (1930-32, 1933-36, 1937-47), 6.51 second-feet.

Extremes^- Maximum discharge during year, 578 second-feet Nov. 13; no flow for several 

months.

1930-32, 1933-36, 1937-47: 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 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. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

2.3 

202 

40 

2.4

.3 

0 

0 

0 

118

4.8 

.2 

58 

9.5 

1.1

.2 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

.1

.1 .1

.2 

.2

.z

.2

.2

.2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

33 

216

56 

58 

9.1 

5.3 

3.8 

3.2

Jan.

2.6 

2.6 

2.1 

2.6 

2.1

1.7

1.7 

1.7

1.7 

2.1 

2.1 

1.7 

2.1

1.7 

1.6 

1.6 

1.6 

1.4

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

5.4 

5.5 

2.5 

2.3

Feb.

2.1 

1.9 

1.9

1.6

1.6

3.2

4.6

3.2 

3.0 

2.8 

2.3 

2.3

1.9 

1.9 

1.7 

1.6 

1.6

1.6 

1.4 

1.2 

1.1 

1.1

1.2 

1.2 

1.1

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. .................. ........ ......

nber. ...................................

lendar year 1946 

ary

h. .....................................

1. ............................. .

St. ....................................

ember. ......."..........................

ter year 1946-47 ......................

Mar.

1.2 

1.1 

1.1

1.7

1.2

1.1 

1.2

1.0 

1.0 

.9 

1.0 

.9

.9 

.8 

.9 

.9 

1.1

1.2 

1.1 

1.0 

.8 

.8

.7 

.9 

7.8 

2.9 

2.7 

2.4

Apr.

2.2 

1.9 

1.7

1.1

1.1 

.9 

.9 

.9

.8 

.5 

.4 

.3 

.2

.2 

.1 

.1 

.2 

.2

.2 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1

Seoondfoot-days

0 

438.8 

386.8

1,310.60

62.6 

53.7 

44.6 

18.2 

.5 

0 

0 

0 

O

1,005.2

May

0.1 

.1 

.1

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

202 

216

227

5.5 

4.6 

7.8 

2.2 

.1 

0 

0 

0 

0

216

June

Minimum

0 

0 

0

0

1.2 

1.1 

.7 

.1

0 

0 

0 

0 

0

0

July Aug.

Mean

0 

14.6 

12.5

3.76

2.02 

1.92 

1.44 

.61 

.02 

0 

0 

0 

0

2.75

Sept.

Runoff in 

acre-feet

0 

870 

767

2,600

124 

107 

88 

36 

1.0 

0 

0 

0 

0

1,990
SANTA CLARA RIVER BASIN 131

Sespe Creek near Plllmore, Calif.

Location.- Water-stage recorder, lat. 34°26'55", long. 118°55'35", In NE£ sec. 12,

T. 4 N., R. 20 W., 0.1 mile downstream from Little Sespe Creek and 3.5 miles north of 

Flllmore. Altitude of gage, about 590 feet.

Drainage area.- 254 square miles.

Records available.- November 1934 to September 1947. September 1911 to September 1913 

ana octooer 1927 to November 1934 at site at Sespe, 3 miles downstream.

Average discharge.- 20 years (1927-47), 113 second-feet.

Extremes.- Maximum discharge during year, 4,850 second-feet Dec. 25 (gage height, 10. bZ 

feet}; minimum dally discharge, 0.2 second-foot on several days In October and August. 

1927-47: Maximum discharge, 56,000 second-feet Mar. 2, 1938, by slope-area method; 

no flow except slight return seepage from Flllmore Canal during latter part of Irrigation season In most years.

Remarks.- Records good. Flllmore Irrigation Co.'s canal diverts 1 mile above station 

(see following page).

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.

1.8

1.4

.4

.3

.3

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.7

.5

.4

.4

.3

.3

.3

.3

.3

.2

.3

.4

.4

.4

.4

.3

Nov.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

4.4

41

1,130

225

79

52

41

34

31

1,380

330

170

890 44-0

215

150

109

92

81

71

-

Dec.

65

61

57

55

53

52

53

49

44

41

38

38

38

38

38

38

38

37

37

35

35

35

35

385

3,730

1,610

1,030

610

400

300

240

Jan.

205

176

153

137

128

120

112

102

95

92

88

86

83

81

79

75

71

69

69

65

64

62

59

58

58

55

55

59

58

53

50

Feb.

49

49

47

46

44

44

44

44

60

65

58

52

49

49

47

46

46

46

 43

41

40

38

37

34

34

34

34

33

.

_

-

Month

Octcber. ...................................

November. ..................................

December ....................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April........... ...........................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

32

32

32

32

32

30

29

28

27

27

25

23

22

22

22

22

21

21

21

21

26

29

25

21

18

18

19

58

62

46

41

Apr.

38

35

34

33

34

32

28

24

21

18

17

16

15

14

14

13

12

12

12

11

10

11

11

11

11

11

16

14

12

11

-

Seccndfoot-days

12.9

5,568.4

9,315

35,874.8

2,717

1,253

884

551

147.1

A A 0 ** O

16.4

13.0

13.3

20,535.9

May

10

8.5

6.9

6.5

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.3

5.3

5.3

5.3

5.3

4.9

4.6

4.6

4.6

4.2

3.6

2.5

2.3

2.1

2.1

1.9

1.7

1.9

2.1

Maximum

1.8

1,380

3,730

6,250

205

65

62

38

10

2.1

.7

1.5

.6

3,730

June

2.1

2.1

2.1

1.9

1-7

1.7

1.9

1.9

1.9

1.9

1.7

1.6

1.6

1.6

1.6

1.6

1.6

1.4

1.4

1.6

1.4

1.4

1.2

1.0

1.0

.8

.8

.8

.8

.7

Minimum

0.2

.3

35

.2

50

33

18

10

1.7

.7

.4

.2

.4

.2

July

0.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.7

.7

6

.6

.6

.7

.5

.4

.4

Aug.

0.3

.4

.6

.5

.4

.4

.4

.4

.4

.4

1.5

.4

.2

.2

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

Mean

0.42

186

300

98.3

87.6

44.8

28.5

TO A J.O. 4

4.75

1 49 iss

.42

.44

56.3

Sept.

0.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.5

.6

.6

Runoff in 

acre-feet

26

11,040

18,480

71,160

5,390

2,490

1 750

1^090

292

89

33

26

26

40,730

Peak discharge.- Nov. 13 (9:30 a.m.) 3.150 sec. -ft.: Nov. 2O (7 a.m.l 3.040 see. -ft.: Nov. 23

(lo:30 a.m. j 1,720 sec. -ft.; Dec. 25 (3 a.m.) 4,850 sec. -ft.
132 SANTA CLARA RIVER BASIN

Fillmore Irrigation Co.'s canal near Fillmore, Calif.

Location.- Water-stage recorder and Parshall flume, lat. 34°27'15", long. 118°55'35", in 

SKfr sec. 1, T. 4N..R. 20W..4 miles north of Fillmore. Altitude of gage, about 

660 feet.

Records available.- October 1927 to September 1932 (monthly discharge), October 1935 to 

septemoer isas (yearly discharge), October 1939 to March 1940 (monthly discharge), 

April 1940 to September 1947.

Average discharge.- 17 years (1927-32, 1935-47), 6.01 second-feet.

Extremes.- Maximum daily discharge during year, 15 second-feet Apr. 26; minimum daily, 

tf.u second-feet on several days during November to January and on Apr. 1.

1940-47: Maximum daily discharge, 16 second-feet for several days in occasional 

years; no flow at times during 1941-1943.

Remarks.- Records good. Canal diverts water from Sespe Creek in SE^ sec. 1, T. 4 N., R. 

2TTY7, 1 mile above gaging station on Sespe Creek near Fillmore.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7.2

7.3

7.1

6.7

6.2

6.0

5.7

5.7

5.6

5.5

5.5

5.4

5.4

5.5

5.7

7.3

6.6

6.4

6.0

5.9

5.8

5.8

5.8

5.6

5.5

5.6

5.8

5.9

6.3

6.4

6.6

Discharge, in second-feet, water year October 1946 to September 1947

Nov.

6.6

6.6

6.6

6.7

7.0

7.1

7.3

7.7

7.8

8.0

8.2

5.3

2.8

2.2

2.0

2.0

2.0

2.1

2.0

2.0

3.2

3.7

3.9

3.8

3.1

3.0

3.0

3.4

3.8

3.8

-

Dec.

3.4

3.3

3.3

3.3

3.0

2.9

2.8

2.8

2.6

2.6

2.6

2.6

2.6

2.6

2.5

2.5

2.5

2.4

2.4

2.4

3.0

3.5

3.5

3.7

3.1

2.0

2.0

2.1

2.1

2.0

2.0

Jan.

2.0

2.0

2.0

2.0

2.0

2.8

3.6

3.4

2.9

3.0

3.0

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

.8

.4

.4

.4

.5

3.2

5.3

7.6

7.4

Feb.

7.2

7.2

7.2

7.2

7.3

7.3

7.3

7.3

7.3

4.5

3.5

4.3

4.2

4.1

4.1

4.1

4.1

5.0

6.6

6.6

6.6

6.5

7.2

8.3

8.5

9.0

9.3

9.2

_

_

-

Month

October ....................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

Hay. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

9.H

9.2

9.3

9.3

9.2

9.2

9.5

9.5

9.4

9.4

10

10

11

11

11

11

11

11

11

11

11

11

11

12

12

13

12

7.7

6.0

7.1

.3.9

Apr.

2.0

3.0

4.6

3.6

2.3

4.9

6.4

10

12

13

13

13

13

13

12

12

12

12

12

12

14

14

14

14

14

15

14

13

12

12

-

Seoondfoot-days

187.8

136.7

84.1

2,341.3

107.8

181.0

307.9

321.8

345 2

246 ! 6

147.3

131.4

123.9

2,321.5

May

12

13

13

12

12

12

12

12

12

11

12

12

12

12

12

11

11

10

9.6

9.2

9.2

9.2

11

11

10

10

10

11

10

11

11

Maximum

7.3

8.2

3.7

16

7.6

9.3

13

15

13

11

6.0

4*8

4.6

15

June

11

11

11

11

11

11

11

10

9.8

9.4

8.6

8.2

7.8

7.7

7.4

7.1

6.8

6.6

6.5

6.6

6.7

6.5

6.5

6.6

6.8

7.0

6.8

7.0

6.8

6.4

-

Minimum

5.4

2.0

2.0

.7

2.0

3.5

3.9

2.0

9.2

6.4

3.9

3. 8

3.7

2.0

July

6.0

5.8

5.6

5.4

5.3

5.2

5.2

5.0

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.8

4.6

4.5

4.4

4.3

4.3

4.4

4.5

4.4

4.2

3.9

4.0

4.1

4.1

4.1

Aug.

3.9

3.8

4.1

4.2

4.1

3.9

3.8

4.1

4.8

4.0

4.0

4.4

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.4

4.3

4.3

4.3

4.3

4.4

4.5

4.4

4.5

4.2

Mean

6.06

4.56

2.71

6.41

3.48

6.46

9*93

10!? 11.1

8. 22

4.75

4.24

4.13

6.36

Sept.

4.0

3.9

3.8

3.8

3.7

3.7

3.9

4.1

4.4

4.5

4.6

4.4

4.2

4.1

4.1

4.1

4.3

4.5

4.5

4.4

4.5

4.5

4.3

4.3

4.1

3.9

3.8

3.8

3.8

3.9

Runoff in 

acre- feet

372

271

167

4,640

214

359

611

638

685

489

292

261

246

4,600
SANTA CLARA RIVER BASIN 133

Santa Paula Creek near Santa Paula, Calif.

Location.- Water-stage recorder, lat. 34°23'40", long. 119°04'35", near east boundary of 

EX Mission San Buenaventura Grant, 15 feet upstream from Santa Paula Water Works 

diversion dam, 3 miles north of Santa Paula, Ventura County. Altitude of gage, about 

650 feet.

Drainage area.- 39.8 square miles.

Records available.- October 1927 to September 1947. April 1912 to September 1913 at site 

2~.t> miles upstream. October 1927 to February 1931 at site 500 feet downstream, below 

diversion of Santa Paula Water Works.

Average discharge.- 20 years (1927-47), 22.1 second-feet.

Extremes.- Maximum discharge during year, 850 second-feet Nov. 20 (gage height, 3.90 

ieet); minimum daily, 0.3 second-foot Aug. 6, 15.

1927-47: 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 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.

3.8 

3.3 

3.3 

3.3 

3.5

3.5 

2.9 

2.5 

2.5 

2.4

2.0 

2.0 

2.0 

2.0 

2.0

2.2 

1.1 

2.4 

2.4 

4.0

2.6 

2.0 

2.2 

1.5 

1.7

2.5 

2.5 

2.9 

3.1 

3.3 

3.1

Nov.

2.7 

2.2 

2.2 

2.1 

2.2

2.2 

2.0 

2.2 

2.2 

2.3

4.5 

5.6 

120 

f27 

f!3.

9.3 

8.3 

7.1 

8.3 

325

47 

31 

115 

53 

35

26 

21 

17 

16 

15

Dec.

14 

13 

11 

11 

11

11

10 

10 

9.6 

9.3

8.9 

8.6 

8.3 

7.7 

7.4

7.1 

6.7 

6.4 

6.1 

5.S

5.6 

5.3 

5.0 

13 

325

155 

170 

85 

55 

44 

37

Jan.

35 

32 

30 

29 

28

28 

27 

24 

19 

15

15 

15 

14 

14 

14

14 

14 

13 

13 

13

13 

12 

12 

12 

12

12 

12 

14 

13 

12 

12

Feb.

12 

12 

11 

11 

11

11 

11 

11 

13 

12

11 

11 

11 

11 

9.6

8.9 

8.9 

9.3 

9.3 

9.3

9.3

8.9 

8.6 

8.6 

S.6

8.6 

8.6 

8.6

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc

&

June 

July 

Augu 

Sept

Wa

mber. ..................................

mber. ..................................

lendar year 1946 

ary

1.. ....................................

St. ....................................

ember ..................................

ter year 1946-47 ......................

Mar.

S.6 

8.6 

8.3 

8.3 

8.0

7.7 

7.4 

7.1 

7.1 

6.9

6.7 

7.4 

7.4 

7.1 

6.7

7.1 

6.7 

f7.4 

f7.7 

f7.7

f7.7 

7.4 

7.7 

7.1 

6.7

5.8 

6.1 

IS 

11 

10 

9.6

Apr.

9.3 

8.9

8.6 

8.3 

8.0

8.3 

8.0 

7.7 

7.7

6.4 

5.8 

5.6 

5.0 

4.2

4.2 

4.5 

5.3 

5.8 

5.8

6.1 

5.8 

5.3 

4.7 

5.6

6.4 

5.8 

5.6 

5.6 

5.3

May

4.7 

4.5 

4.2 

5.0 

5.3

5.6 

5.3 

5.3 

5.0

5.O 

5.3 

5.0 

4.7 

5.0

4.2 

4.2 

4.5 

4.2 

4.2

4.5 

4.5 

4.5 

4.2 

4.0

3.8 

4.0 

3.5 

3.1 

3.5 

4.0

June

3.5 

2.9 

2.9 

2.7

2.0

2.0 

1.8 

2.0 

1.8

1.8 

1.5 

1.4 

1.7 

2.2

2.2 

2.5 

2.5 

2.5 

2.5

2.4 

2.4 

2.4 

2.5 

2.7

2.9 

2.5 

2.7 

2.5 

2.4

ffoWaye "axi»UB ttinil"»n

80.5 4.0 1.1 

926.4 325 2.1 

1,082.8 325 5.0

6,214.5 650 1.0

542 35 12 

2S4.1 13 8.6 

247.0 18 5.8 

190.7 9.3 4.2 

139.5 5.6 3.1 

69.5 3.5 1.4 

41.4 2.2 .4 

27.1 1.8 .3 

49.2 2.2 1.1

3,680.2 325 .3

July

2.2 

1.8 

1.5 

1.4 

2.0

2.2 

1.7 

1.1 

1.1

1.5 

1.6 

1.1 

1.1 

1.1

1.0 

1.1 

.9 

.8 

1.1

1.0 

1.0 

.4 

.8 

.5

1.1 

1.8 

2.0 

1.8 

1.8 

1.8

Aug.

1.7 

1.7 

1.8 

.9 

.8

.3 

.4

.5 

.6

.4 

.4

.5 

.8 

.3

.8 

1.0 

1.0 

1.1 

.9

.9 

.7 

.5 

.6 

.7

.8 

.9 

.9 

1.4 

1.7 

1.7

Sept.

1.5 

1.4 

1.4 

1.2 

1.4

1.8 

2.0 

2.0 

2.0

1.3 

1.2 

1.1 

2.0 

2.0

1.8 

2.2 

2.2 

2.0 

1.7

1.7 

1.7 

1.7 

1.7 

1.7

1.5 

1.4 

1.5 

1.8 

1.1

u .. Runoff in *ean aore-feet

2 . 60 160 

30.9 1,840 

34.9 2,150

17.0 12,330

17.5 1,080 

10. 1 564 

7.97 490 

6.36 378 

4.50 277 

2.32 138 

1.34 82 

.87 54 

1.64 98

10.1 7,310

Peak discharge.- Nov. 13 (9:30 a.m.) 530 sec. -ft. i Nov. 20 (6:45 a.m.) 850 sec. -ft.! Nov. 23

"sec.-ft.j Dec. 25 (2:45 a.m.) 470 sec.-ft.; Dec. 25 (l:15 p.m.) 470 seo.-ft.; 

Dec. 27 (8:3O a.m.)265 seo.-ft.

t Computed on basis of partly estimated gage-height record.

854211 O - 49 - 10
134 VENTURA RIVER BASIN

Matilija Creek at Matilija, Calif.

Location.- Water-stage recorder, lat. 34°28<50", long. 119°18'06", in SW£ sec. 28, T. 5 

N., H. 23 W., 0.1 mile southeast of Matilija and 0.2 mile upstream from North Fork. 

Altitude of gage, about 950 feet.

Drainage area.- 55 square miles.

Records available.- October 1927 to September 1947.

Average discharge.- 20 years, 36.7 second-feet.

Extremes.- Maximum discharge during year, 3,500 second-feet Nov. 20 (gage height, 6.7 

reetj; minimum daily, 1.0 second-foot Aug. 12, Sept. 27, 28.

1927-47: Maximum discharge, 15,900 second-feet Mar. 2, 1938, by slope-area method; 

minimum daily, 0.4 second-foot Oct. 28, 1930.

Remarks.- Records fair. No diversion above station. Slight regulation by construction 

activities at Matilija dam site, 0.4 mile above station.

Cooperation.- Forty-seven discharge measurements furnished by Ventura County Water Survey.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

12 

13

14

16

17

18

19

20

21

22

 23

24

25

26

27

28

29

30

31

Oct.

4.3

3.8

3.6

3.6

3.4

3.4

3.2

3.2

3.2

3.0

2.7 

2.7

2.7

3.2

4.0

3.6

3.2

3.4

3.2

3.2

3.2

3.2

3.2

3.0

3.2

3.6

3.8

4.0

3.8

3.8

Nov.

3.6

3.4

3.4

3.4

3.4

3.4

3.6

3.6

3.8

3.8

5.7 

50

22

12

9.5

9.0

8.0

10

200

37

22

85

44

30

25

20

18

16

14

-

Dec.

13

13

14

16

15

15

14

14

13

12

14 

14

14

14

14

13

12

12

12

11

11

11

60

560

220

140

97

77

66

57

Jan.

55

51

48

47

44

42

40

38

36

34

27 

25

24

24

24

24

23

22

22

20

19

20

21

20

20

19

22

22

21

19

Feb.

18

18

18

17

17

16

16

16

22

22

17 

16

16

16

14

16

16

14

14

14

12

12

12

12

12

13

12

_

_

-

Month

December. ..................................

March. .....................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

12

12

12

12

12

12

12

12

11

11

11 

11

9.5

10

10

10

10

11

12

14

12

12

10

10

10

11

25

12

12

11

Apr.

10

10

10

10

9.5

9.5

9.5

10

9.6

9.6

7.S 

7.4

7.4

7.4

7.5

7.3

8.£

7.4

7.8

8.6

9.0

8.2

7.8

8.2

8.6

9.0

9.5

8.8

7.7

-

Seoondfoot-days

1,582

52.1

4,813.5

May

6.8

6.2

5.3

5.5

6.5

6.1

5.8

6.0

5.6

5.3

7.1 

5.5

5.8

6.0

5.6

5.7

5.0

5.5

5.0

5.8

5.8

6.0

6.6

5.8

5.2

6.0

5.2

4.6

4.5

5.7

Maximum

200

560

2.6

560

June

4.5

5.3

4.5

4.5

4.5

4.6

4.O

4.0

5.7

4.6

4.5 

4.3

3.6

3.8

4.O

3.7

3.3

3.4

3.6

3.0

2.8

4.3

3.8

4.4

4.1

4.1

4.O

3.8

4.0

-

Minimum

11

p Q

1.0

1.0

July

3.7

3.7

3.7

3.2

3.3

3.9

Z.B

3.1

2.6

3.0

2.5 

2.1

2.8

2.2

2.9

3.O

2.5

2.1

2.2

2.8

2.6

2.7

2.5

2.3

1.5

1.4

2.3

2.0

2.4

2.9

Aug.

2.3

1.1

2.4

1.6

1.2

1.2

1.2

1.5

1.9

1.1

1.0 

1.2

2.5

2.3

1.5

1.5

Z.I

2.0

2.0

1.6

2.8

1.3

1.6

1.6

2.0

2.2

1.9

2.1

1.4

1.4

Mean

51.0

1.74

13.2

Sept.

1.3

1.9

1.8

1.3

1.5

1.1

1.4

1.9

2.0

1.8

2.4 

1.3

1.2

1.7

1.9

2.4

2.6

2.3

1.4

2.5

1.3

2.0

1.9

1.1

1.3

1.0

1.0

2.1

2.2

-

Runoff in 

acre-feet

207

3,140

719

103

9,540
VENTURA RIVER BASIN 135

Ventura River near Ventura, Calif.

Location.- Water-stage recorder, lat. 34°20'55", long. 1190 18'20", in southeast corner 

or 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 (revised) 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 1947.

Average discharge.- 20 years (1911-13, 1929-47), 74.5 second-feet.

Extremes.- Maximum discharge during year, 2,400 second-feet Nov. 20 {gage height, 4.87 

reet); no flow during parts of July, August, September.

1911-13, 1929-47: 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 

during many years.

Remarks.- Records fair. Water diverted from Ventura River and tributaries for irrigation 

and municipal supply.

Cooperation.- Four discharge measurements furnished by Venturgi County Water Survey.

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.

0.6

.5

.7

.6

.7

.6

.6

.6

.5

.4

.4

.4

.4

.4

.5

.6

.5

.4

.4

.4

.4

.3

.4

.4

.3

.3

.3

.3

.3

.2

.2

Nov.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

..3

40

15

6.6

4.5

3.5

2.1

3.1

670

40

11

245

64

18

9.5

6.7

7.3

6.6

5.5

-

Dec.

4;s

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.0

4.0

4.0

4.0

3.5

3.5

3.5

3.5

3.5

a3.5

a3.5

a3.5

a3.5>

aS.O

a880

a430

a350

190

135

132

80

Jan.

67

62

52

47

46

44

39

39

37

37

36

37

37

36

34

32

32

30

30

28

26

26

26

25

25

24

24

26

26

25

24

Feb.

22

21

21

17

14

11

10

10

15

26

22

18

15

12

12

12

12

12

11

11

11

11

12

14

12

12

12

12

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

« * 

September. .................................

Water year 1946-47 ......................

Peak discharge.- Nov. 13 (11:30 a.m.) 185

Mar.

12

12

12

12

12

12

12

12

12

11

11

11

11

12

12

14

14

11

10

9.5

9.5

1O

10

9.5

8.7

8.0

8.7

23

19

21

14

Apr.

12

11

11

10

9.5

9.5

8.7

7.3

6.6

6.0

5.5

5.5

5.5

5.0

7.O

8.0

5.0

5.0

6.0

6.0

9.5

10

5.5

5.5

9.5

7.5

5.0

6.5

9.0

7.5

Seccndfcot-days

2,297.5

12,150.2

400

375.9

92.4

14.3

.4

5,744.5

May

5.0

5.0

4.0

4.5

5.0

2.4

2.1

2.4

2.1

2.1

2.1

2.4

2.7

2.7

2.7

2.7

3.1

3.1

3.1

3.1

2.7

2.7

2.7

2.7

2.7

2.7

3.1

2.7

2.7

2.7

2.7

Maximum

880

2,700

26

23

12

5.0

2.1

.3

.2

880

sec. -ft. i Nov. 20 (7 a.

June

3.1

3.1

3.1

3.1

3.1

2.7

3.1

3.1

3.1

2.7

2.7

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

2.7

2.4

2.4

2.1

2.1

1.8

1.8

1.8

1.8

1.8

Minimum

3.5

.2

24

10

8.0

5.0

2.1

0

0

0

0

July

1.8

1.5

1.3

1.3

1.3

2.1

1.5

1.3

.9

.6

.4

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

O

O

0

0

0

0

0

0

0

o

0

o

0

0

0

0

0

o

0

o

0

0

0 .1-

.2

.2

.3

.2

.1

.1

.1

Mean

74.1

33.3

34.8

14.3

12.1

7.52

2.98

2.72

.46

.04

.01

15.7

Sept.

0.2

.1

.1

O

O

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

o

0

0

0

0

0

0

0

0

Runoff in 

acre-feet

4,560

24,100

2,140

793

746

447

183

162

28

2.6

.8

11,400

m.) 2,400 sec. -ft.; Nov. 23

sec.-ft.i Dec. 27 (about 11:30 a.m.) 490 sec.-ft.

a Gage-height record incomplete; discharge computed on basis of partial gage-height record, 2 discharge measurements, weather records, and discharge at related stations in basin.
136 VENTORA RIVER BASIN

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., R. 23 W., at highway bridge, 0.5 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 1947.

Average discharge.- 18 years (1928-32, 1933-47), 10.6 second-feet.

Extremes.- Maximum discharge during year, 415 second-feet Dec. 25; minimum daily, 0.4 

second-foot on several days in August and September.

1928-32, 1933-47: 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 1946 to September 1947

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

25

27

28

29

30

31

Oct.

1.6

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.4

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.2

Nov.

1.2

1.2

1.1

1.2

1.2

1.2

1.2

1.3

1.4

1.8

2.0

17

5.7

3.0

2.5

2.3

2.3

2.3

56

10

5.5

44

14

9.3

7.5

6.3

5.5

5.1

4.8

-

Dec.

4.6

4.4

4.1

4.1

4.0

4.3

4.0

3.8

3.6

3.6

3.5

3.5

3.5

3.5

3.3

3.3

3.3

3.3

3.3

3.2

3.2

3.2

59

241

70

60

33

24

19

16

Jan.

14

13

12

11

10

9.6

8.7

8.7

8.3

7.8

7.4

7.4

7.0

7.0

6.7

5.9

5.9

5.7

5.4

5.4

5.2

5.2

4.9

4.9

4.9

4.9

5.7

5.4

5.2

4.9

Feb.

4.7

4.5

4.1

4.1

4.1

4.1

4.1

5.8

5.0

4.3

4.1

4.1

3.9

3.9

3.7

4.1

4.1

3.9

3.9

3.9

3.9

3.7

3.7

3.7

3.7

3.7

3.5

_

-

Month

December ....................................

Calendar year 1946 ....................

January. .................................

March. ..................... ...............

Mav

July............... ........................

September. .................................

Water year 1946-47 ......................

Mar.

3.5

3.5

3.5

3.5

3.5

3.4

3.4

3.4

3.2

3.4

3.2

3.2

3.1

3.1

3.1

3.0

3.0

3.0

4.0

3.9

3.4

3.2

2.9

2.8

2.5

3.3

9.6

5.4

4.3

3.7

Apr.

3.5

3.5

3.4

3.1

3.1

2.9

2.8

2.8

2.6

2.6

2.6

2.6

2.5

2.2

2.2

2.2

2.2

2.1

2.2

2.2

2.0

2.0

2.0

2.1

2.1

2.2

2.2

2.2

2.2

-

Secondfoot-days

606.7

2,769.6

227.3

15.5

1,514.9

May

2.1

1.9

1.8

1.8

1.8

1.8

2.1

1.9

1.7

1.7

1.5

1.2

1.2

1.1

r.i

1.2

1.2

1.1

1.0

1.2

1.3

1.3

1.3

1.2

1.2

1.4

1.4

1.3

1.4

1.4

Maximum

56

241

367

14

.7

241

June

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.0

1.0

.9

.8

.7

.7

.8

.8

.8

.8

.8

.7

.8

.9

.9

.9

.8

.8

-

Minimum

3.2

.9

.4

.4

July

0.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Aug.

0.5

.5

.5

.5

.4

.4

.5

.5

.5

.5

.4

.5

.5

.5

.5

.6

.6

.6

.6

.6.

.6

.6

.6

.6

.5

.6

.6

.6

.6

.5

Mean

19.6

7.59

.57

.52

4.15

Sept.

0.5

.5

.4

.4

.4

.5

.6

.6

.7

.7

.6

.6

.6

.6

.5

.6

.6

.6

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

Runoff in 

acre-feet

72

1,200

5,490

31

3,000
VENTURA RIVER BASIN 

Coyote Creek near Ventura, Calif.

137

Location.- Water-stage recorder, lat. 34°21'20", long. 119°18'50", near southeast corner 

or Santa Ana Grant, 200 feet dovmstream from highway bridge, 0.2 mile (revised) upstream from mouth, and 5.5 miles northwest of Ventura, Ventura County. Altitude of 

gage, about 240 feet.

Drainage area.- 41.1 square miles.

Records available.- October 1927 to September 1932, October 1933 to September 1947.

Average discharge.- 19 years, 15.1 second-feet. -

Extremes.- Maximum discharge during year, 1,800 second-feet Nov. 20 (gage height, 5.30 

reetj; minimum daily, less than 0.1 second-foot on many days.

1927-32, 1933-47: Maximum discharge, 11,500 second-feet Mar. 2, 1938, by slopearea method; no flow Aug. 19 to Sept. 18, 1929.

Remarks.- Records good below 100 second-feet, fair 100' to 500 second-feet, and poor above 

bou second-feet.

Cooperation.- Six discharge measurements furnished by Ventura County Water Survey. 

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

e7

8

9

11

13

15

16

17

18

20

22

23

24

25

26

27

28 

29

30

31

Oct.

0.1

.1 \ 

.06

y .08

jy .oe

1'

Nov.

> 0.08

.1

.3

.2-

.2

.2

.2

.2

.6

350

f!2

f3.8

f85

20

8.O

5.8

4.8

3.9 

3.3

3.1

Dec.

2.9

2.8

2.8

2.4

2.1

2.0

2.0

2.O

1.9

1.9

1.9

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

f4.0

f200

f90

f93

a40 

a3O

a22

a!7

Jan.

13

-11

9.1

8.4

7.7

7.4

6.7

6.4

6.1

5.8

5.5

5.3

5.O

4.5

4.3

4.3

4.1

4.1

4.1

3.9

3.9

3.9

3.7

3.7

3.5

3.3

4.3 

4.8

3.9

3.5

Feb.

3.3

3.1

2.9

2.9

2.8

2.8

2.6

2.6

3.3

4.1

3.5

3.1

a3.0

a2.8

a2.7

a2.6

a2.5

2.4

2.4

2.6

2.6

2.4

2.3

2.2

2.1

2.1

2.1

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April........... ...........................

Ufa*. 

July. ......................................

September. .................................

Hater year 1946-47 ......................

Mar.

2.O

z.o

2.0

1.9

1.9

1.7

al.7

al.7

al.7

fl.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.7

1.7

1.7

1.6

1.5

1.5

1.6

4.4 

4.1

2.6

2.1

Apr.

2.0

2.0

1.9

1.7

1.6

1.5

1.5

1.5

1.5

1.5

1.5

fl.4

al.4

al.4

al.4

al.4

al.4

al.4

al.4

fl.4

1.4

1.3

1.3

1.2

1.2

1.2

1.1 

1.0

.9

Seoondfoot-days

540.0

2,249.77

59 3

42 9

1.50

1,426.68

May

0.8

.8

.7

.7

.7

.7

.7

.7

.6

.6

.6

.5

.5

.5

.4

.4

.4

. .5

.5

.5

.5

.5

.4

.4

.5

.5

.5 

.4

.5

.4

Maximum

200

440

* g

.

350

June

0.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

 3

.3

.2

.3

.2

.2

.3

.5

 3

.2

:P_

Minimum

1.6

_

g

-

-

July

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

> .06

Aug.

> 0.07

y .04

j.

Mean

17.4

6.16

5 SO

2 75

.050

3.91

Sept.

.

1

y 0.05

J

.06

N

I .05

J

.04

y .05

' -

Runoff in 

acre-feet

1,070

4,460

153

3.0

2,830

Peak discharge.- Nov. 2O (7 a.m.) 1,80O sec.-ft. ) Nov. 23 (10:15 a.m.) 38O sec.-ft.; Dec. 2 

(6 p.m.) 600 sec.-ft.

a Ho gage-height record; discharge computed on basis of normal recession, or interpolation.

f Computed on basis of partly estimated gage-height record.

Note.- Dally mean discharge less than O.I sec.-ft. Oct. 3 to Nov. 1O, July 26 to Sept. 30.
138 CARPINTERIA CREEK BASIN

Carpinteria Creek near Carpinteria, Calif.

Location.- Water-stage recorder, lat. 34 0 24'00", 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 1947.

Extremes.- Maximum discharge during year, 700 second-feet Nov. 20 (gage height, 5.25 

feet); no flow during several months.

1941-47: 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 

mile, which is drained past station by pumping.

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.

0

0

0

0

0

0

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

Nov.

0.2

0

0

0

0

0

0

0

0

0

0

0

3.8

.4

0

0

0

0

6.0

130

1.3

.2

9.5

2.0

.2

0

0

0

0

0

-

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.5

42

17

36

11

5.1

3.0

2.0

Jan.

1.5

.8

.5

.4

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

0

0

0

Feb.

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

_

-

Month

October. ...................................

December. ...................................

Calendar year 1946 ......................

February. .................................

March.. ....................................

April. .....................................

May. .......................................

July

September ..................................

Water year 1946-47 ......................

Mar. Apr.

Secondf cot-days

0.8

153.6

116.6

346.8

.5

0

0

275.3

May

Maximum

0.8

130

42

130

1.5

.4

0

0

0

0

130

June

Minimum

cc

c

c

c

c

c

c

c

c

c

c

c

c

July Aug.

Mean

0.03

5.12

3.76

.95

.12

.02

0

0

0

0

0

.75

Sept.

Runoff in 

acre-feet

1.6

305

231

688

7.5

1.0

0

0

0

0

546

Peak discharge.- Nov. 20 (5:30 a.m.) 700 see.-ft.; Dec. 25 (6 p.m.) 110 see.-ft.
ALASCADERO CREEK BASIN 

Alascadero Creek near Goleta, Calif.

139

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 1947.

Extremes.- Maximum discharge during year, 750 second-feet Nov. 20 (gage height, 8.60 

reetj; no flow during several months.

1941-47: 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 1946 tc September 1947

Day

1 

2 

3 

4 

5

6 

7

a

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct. Ncv.

0.4 

0 

0 

O 

0

0 

0 

O 

O 

0

.1 

1.0 

26 

9.5

f3.0

fl.5 

f.4 

f.l 

15 

f!70

f!4 

fl.5 

f58 

fl3 

fl.5

.3 

.4 

.3 

.2 

.2

Dec.

0.2 

.1 

.1 

.1 

.1

2.2 

.3 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.3 

.1 

.1

.1 

.1 

.1 

4.2 

54

43 

f70 

flO 

3.5 

3.0 

2.5

Jan.

2.0 

1.5 

2.0 

.5 

.4

.4 

.3 

.3 

.2 

.2

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

1.3 

.3 

.1 

.1

Feb.

> 0.05

.9 

.7

.2

.1 

.1 

.1 

.1

.2

.1 

.1 

.1 

.1

.1 

.6 

.2 

.1 

.1

.2

.4 

.4

Month

Octc 

Neve 

Dece

Ca

Janu 

Febr 

Marc

June 

July 

Augu 

Sept

ffa

her.................... ................

mber. ...................................

lendar year 1946 

ary

1. ...................... ..............

ember ..................................

ter year 1946-47 ......................

Peak discharge.- H

a.m.) 130 sec. -ft. 5 

f Computed on basl 

Note.- For periods 

charge was less than

ov. 13 (5:30 a.m.) 19O s 

Dec. 25 (5:30 p.m.) 80 s 

s of partly estimated ga, 

of very low flow, for w 

0.1 sec. -ft.

Mar.

O.3 

.2 

.2 

.1 

.2

.3 

.1

\ .05

.2

.1

.05

.2 

.3

> .05

.1 

.2 

.5 

.2 

.1 

.05

Apr.

I O.02

.2

1.5 

1.5 

1.7 

1.7

1.5 

.1

> .02 

.01

Seccndfcct-daya

O 

316.4 

195.1

612.7

11.3 

5.30

a'. 62

2.46 

.30 

.24 

.39

0

544.16

ec.-ft.; Ho\ 

ec.-ft.; Dec 

5e -height re 

ilch means 1

May

> 0.02

> .01

.5 

l.O 

.5 

.1 

f.05

June

> 0.01

Maximum Minimum

0 0 

170 0 

70 , .1

170 0

2.0 .1 

.9 

.5 

1.7 

1.0 !

O 

.2 0 

O O

170 0

r. 20 (5:30 a.m.) 750 

. 26 (9:30 p.m.) 140 

cord, 

"or periods are shown

July

' 0.01

. o

, .01

Aug.

 0.01 

f.2

 .01

> 0

Sept.

 _ Runoff in llean acre-feet

0 0 

10.5 628 

6.29 387

1.68 1,220

.36 22 

.189 11 

.131 8.0 

. 287 17 

.079 4.9 

.010 .6 

.008 .5 

.013 .8 

0 0

1.49 1,080

sec. -ft.; Nov. 23 (S:30 

sec. -ft.

in brackets, dally dls-
140 SAN JOSE CREEK BASIN

San Jose Creek near Goleta, Calif.

Location - Water-stage recorder, lat. 34°27'25", long. 119°48'30" In La Goleta Grant, 

at Patterson Avenue Bridge, 1.1 miles downstream from unnamed tributary and 1.7 

miles north of Goleta, Santa Barbara County. Altitude of gage, about 120 feet (from 

topographic map).

Drainage area.- 5.54 square miles.

Records available.- January 1941 to September 1947.

tremes.- Maximum discharge during year, 500 second-feet Nov. 20 (gage height, 4.48 

feet); no flow during several months.

1941-47: 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 below 100 second-feet and fair above, 

above station for Irrigation.

Many small diversions

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. Nov.

0

0

0

0

0

0

0

0

0

0

.1

0

12

fl.O

a.l

a.l

a.l

f.l

13

80

f4.0

f.l

31

6.8

2.4

.8

.1

.1

.4

.6

r

Dec.

0.4

.4

.4

.4

.6

2.6

1.5

.8

.6

.3

.1

0

0

0

.2

.4

.4

.4

.4

.4

.4

.4

.4

1.8

27

24

31

11

4.2

.8

.4

Jan.

0.3

.2

.2

.2

.1

.1

.1

.1

.1

> e.04

.1

.1

.1

.1

.2

*

1

> e.06

1

.3

1.1

.1

.1

.1

Feb.

j

1

I

V eO.05

1'

.3

.2

> e.06

.1

.1

.1

.1

_

_

-

Month

October. ...................................

November. ...................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

0.1

.1

.2

.2

.1

.4

.1

.1

.2

.2

.2

.2

.4

.3

.3

.3

.2

.2

.2

.3

.2

.3

.2

.3

.2

.2

.4

3.6

.9

.6

.3

Apr.

0.1

.1

.3

.3

.3

.5

.4

.2

.2

.1

.2

.1

.1

.1

.1

J

^ e.06

J

.1

.2

.2

.2

.2

.2

.2

.2

.1

.1

Secondfoot-days

0

153.4

111.7

403.8

4.28

2.14

11.5

5.10

3.9

.15

0

0

0

292.17

May

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

'.2 .1

.1

.1

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

Maximum

0

80

31

80

1.1

.3

3.6

.5

.2

.1

0

0

0

80

June

0.1

.04

.01

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Minimum

0

0

0

0

_ . 

. 

0

0

0

0

0

July Aug.

Mean

0

5.11

3.60

1.11

.138

.076

L .37

.170

L .13

.005

O

0

0

.80

Sept.

Runoff in 

ao re-feet

0

304

222

801

8.5

4.2

23

10

7.7

.3

0

0

0

580

Peak discharge.- Hoy. 13 (5 a.m.) 50 sec.-ft., Nov. 20 (4 a.m.) 500 sec.-ft., Nov. 23 (6:15 a.m.) 

90 sec.-ft., Dec. 25 (2 a.m.) 47 sec.-ft., Dec. 25 (5 p.m.) 50 sec.-ft., Dec. 26 (7:30 p.m.) 75 sec.- 

ft.

a No gage-height record; discharge estimated.

e Dally discharge less than 0.1 sec.-ft.

f Computed on basis of partly estimated gage-height record.
SANTA YNEZ RIVER BASIN 141

Santa Ynez River at Jameson Lake, near Montecito, Calif.

Location.- Water-stage recorder on Jameson Lake at Juncal Dam, lat. 34°29'32", long. 

119°30 I 2511 , 6.5 miles north of Carpinteria and 8 miles northeast of Montecito, Santa 

Barbara Counvy. Altitude of spillway crest is about 2,225 feet. Datum of gage is 

mean sea level.

Drainage area.- 16.0 square miles (not including Alder Creek).

Records available.- December 1930 to September 1941 (monthly discharge), October 1941 

to September i947.

Average discharge.- 16 years (1931-47), 7.96 second-feet.

Remarks.- Records of discharge represent flow into Jameson Lake (capacity, about 7,000 

 acre-feet at spillway elevation), computed on basis of records of storage, spillway 

discharge, controlled releases, evaporation, and rainfall. Part of flow of Alder 

Creek, which enters Santa Ynez River 2 miles downstream from Juncal Dam, is diverted 

from above elevation 2,250 feet to Jameson Lake, and is included in discharge records. 

Records do not include S49 acre-feet of rainfall on water surface of the reservoir 

during this year. During year Montecito County Water District diverted 2,270 acrefeet from Jameson Lake for municipal supply of city of Montecito.

Cooperation.- Records furnished by Montecito County Water District.

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.

 0.05

.06

Nov.

. 0.06

.2

.2

10

1.2

 .9

.6

.5

.7

3.2

76

5.9

3.6

5.3

4.2

2.9

i.a

1.8

1.7

1.9

1.8

-

Dec.

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1,2

1.4

1.2

1.9

1.8

1.8

1.9

2.1

2.1

2.1

1.9

1.7

1.7

1.7

1.6

1.3

3.8

102

55

25

18

12

10

8.6

Jan.

5.4

5.8

4.7

3.9

4.1

3.7

3.7

3.4

3.4

2.7

2.7

2.7

2.7

2.7

2.3

. 2.0

2.6

2.6

2.6

2.6

2.7

2.6

1.8

1.7

1.7

1.7

1.7

1.4

1.9

1.8

1.8

Feb.

2.7

2.7

2.7

2.7

2.7

2.7

2.6

2.4

1.7

2.6

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2.3

3.7

2.4

2.4

1,7

1.7

2.3

1.6

1.7

1.7

1.7

_

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

 arch. .....................................

April................ ......................

May........................................

June .......................................

July. ......................................

August

September. .................................

Water year 1946-47 ......................

Mar.

1.6

1.8

1.5

1.5

1.5

1.5

1.5

1.7

1.5

1.4

1.5

1.6

1.5

1.5

1.5

1.6

1.8

1.7

1.4

1.5

1.5

1.4

1.5

1.4

1.5

1.4

1.4

2.9

2.2

1.4

1.5

Apr.

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

,.1-2

1.2

1.3

1.2

1.2

1.3

1.2

1.2

1.2

1.3

1.2

1.3

1.2

1.1

1.1

1.1

1.1

1.0

1.0

1.0

1.0

1.0

-

Secondfoot-days

1.67

125.00

270.2

1,748.99

87.1

65.0

49.2

35.0

2S. 9

9.5

6.2

5.3

5.1

688.17

May

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

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

Maximum

76

102

603

5.8

3.7

2.9

1.3

1.0

.4

.2

.2

.2

102

June

0.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Minimum

3

1.2

1.4

l.«

1.4

l.C

.£

!J

.]

.]

-

July

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

Mean

0.054

4.17

8.72

4.79

2.81

2.32

I 1.59

) 1.17

.93

5 .32

.20

.17

.17

1.89

Sept.

0.1

.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

Runoff in 

acre-feet

3.3

248

536

3,470

173

129

98

69

57

19

12

11

10

1,360
142 SANTA YNEZ RIVER BASIN

Santa Ynez River above Gibraltar Dam, near Santa Barbara, Calif.

Location.- Water-stage recorder on reservoir at Gibraltar Dam, lat. 34°31'37", long.

 Iiyu 41'10" , 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.

Records available.- November 1903 to April 1907, October 1907 to January 1908, February

 1910 to November 1918, April 1920 to September 1947 (monthly discharge only April 

to September 1941, October 1946 to September 1947).

Average discharge.- 33 years (1904-6, 1911-14, 1916-17, 1920-47), 56.7 second-feet.

Remarks.- Records of runoff represent inflow to Gibraltar Reservoir exclusive of rainfall

 orPreservoir surface, computed on basis of records of storage, diversion to city of 

Santa Barbara, spill and release to river, evaporation, and precipitation. Capacity 

and area ratings for reservoir are dated 1947. Reservoir capacity at spillway level 

(gage height, 1,354.85 feet), 7,490 acre-feet. Records are based on 6 p.m. readings. 

Plow regulated and water diverted at Jameson Lake (see preceding page).

Cooperation.- Records computed in cooperation with city of Santa Barbara.

Monthly runoff, water year October 1946 to September 1947

Month

Calendar year 1946

MAV

September ...........

Water year 1946-47

Gibraltar Reservoirt

Oage height 

(feet)

1,342.55 

1,339.58 

1,349.40 

1,355.07

_

1,354.87 

1,354.84 

1,354.86 

1,353.91 

1,351.42 

1,348.02 

1,343.86 

1,339.84 

1,335.94

-

Contents 

(acre-feet)

5,175 

4,674 

6,411 

7,540

_

7,498 

7,492 

7,496 

7,299 

6,800 

6,152 

5,402 

4,717 

4,084

-

Change 

In 

contents 

(aerefeet)

-501 

+1,737 

+1,129

_

-42 

-6 

+4 

-197 

-499 

-648 

-750 

-685 

-633

-1,091

Diversion 

(acre-feet)

403 

267 

167

_

212 

210 

338 

383 

504 

538 

626 

554 

504

4,706

Spill 

plus 

release 

(acrefeet)

25 

15 

3,410

_

2,010 

461 

210 

104 

5 

7 

4 

4 

3

6,258

Evaporation 

(acrefeet)

60 

25 

13

_

22 

28 

43 

68 

87 

104 

121 

105 

92

773

Precipitation 

(acrefeet)

12 

144 

66

I .

8 

14 

34 

2

1 

0 

0 

0 

0

281

Runoff 

(acre-" 

feet)

-25

1,900 

4,653

24,077

2,194 

679 

566 

356 

96 

1 

1 

-22 

-34

10,365

t On last day of month.

Mote.- Runoff equals change in contents, plus diversion to city of Santa Barbara, plus spill 

and release to river, plus evaporation, and minus precipitation.

For months when inflow to the reservoir was small and other elements were large, negative or 

discordant figures of runoff may appear. To the extent that such discrepancies may be attributed 

to uncertainties in reservoir capacity rating, those runoff quantities too small during periods 

of falling stage In the reservoir are compensated by quantities too large during corresponding 

rising stages.
SANTA YNEZ RIVER BASIN 

Santa Ynez River below Gibraltar Dam, near Santa Barbara, Calif.

143

Location.- Water-stage recorder on reservoir at Gibraltar Dam, lat. 340 31'37", long. 

ii9"4i'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 1947 (monthly discharge only prior to October

1941}.

Average discharge.- 27 years, 42.1 second-feet.

Remarks.- Records of discharge represent flow in Santa Ynez River passing Gibraltar Dam, . 

computed on basis of records of spillway discharge and controlled release. Flow 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, the city of Santa Barbara diverted 4,710 acre-feet from Gibraltar Reservoir and 

Montecito County Water District diverted 2,270 acre-feet from Jameson Lake for municipal 

use.

Cooperation.- Gage-height records furnished by, and records of discharge computed in conjunction with, city of Santa Barbara.

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

IS

19

20

21

22

23 

24

25

26

27

28

29

30

31

Dot.

0.4

.4

.4

.4

.4

.4

.4

4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4 

.4

.4

.4

.4

.4

.4

.4

.4

NOT.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

0

0

0

0 

0

0

0

0

0

o

0

-

Deo.

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

o

0

3.9

640

373

282

181

136

103

Jan.

S2

74

67

60

54

50

46

44

44

42

40

40

40

38

34

30

28

26

24

22

22

19

13 

9.0

7.2

7.2

8.O

10

13

12

10

Feb.

9.0

6.5

4.6

4.0

4.0

4.0

4.0

4.0

9.0

18

16

13

11

12

13

12

12

11

9.0

S.O

8.0

7.2

6.5 

5.8

5.2

5.2

5.2

5.2

-

_

-

Month

October. ...................................

.November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February

Haroh. .....................................

April............. .........................

May. .......................................

June .......................................

July

August . . . . ...

September. .................................

Water year 1946-47 ......................

Mar.

4.6

4.6

5.2

5.8

5.8

4.6

3.5

3.0

3.0

3.0

2.6

1.8

1.2

1.0

.8

.4

.2

.1

.2

.6

1.2

1.5

1.2 

.8

.4

.3

.4

11

16

12

9.0

Apr.

7.2

5.8

5.2

4.0

3.0

3.0

3.0

3.0

3.5

3.5

3.5

4.0

3.0

.8

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

-

Secondfoot-days

12.4

7.6

1,718.9

9,631.7

1,015.4

232.4

105.8

52.5

2. 5

3. 61

2.17

2.01

1.65

3,156.94

May

O

0

0

0

0

o

0

o

o

0

0

0

0

0

o

0

0

0

0

o

0

0

o

0

0

o

.5

.5

.5

.5

.5

Maximum

0.4

.4

640

2,870

82

18

16

7.2

.5

.4

_

-

640

June

0.4

.3

.3

.2

.2

.3

.3

» .07

-

Minimum

0.4

0

0

0 .

7.2

4.0

.1

0

0

_

_

-

0

July

 O.O7

Aug.

 0.07

> .06

Mean

0.40

.25

55.4

26.4

32.8

S.30

3.41

1.75

.08

.120

.07

.065

.055

8.65

Sept.

 O.06

.05

-

Runoff in 

acre-feet

25

15

3,410

19,110

2,010

461

210

104

5.0

7.2 -4.3

4.0

3.3

6,260
144 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 to September 1947.

Remarks.- Records good. Intermittent local pumping for irrigation affected flow throughout period. No appreciable flow July 16 to Sept. 30.

Discharge, In second-feet, water year October 1946 to September 1947

Das

1

2

3

4

5

6

7

8

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.

to. 2

-

Dec. Jan. Feb. Mar.

t6.4

Apr.

_

_

_

_

-

_

_

_

-

.

_

_

_

t2.4

_

_

_

_

-

_

_

tl.7

tl.7

1.2

1.4

_

.

_

-

Hay

tl.2

_

_

_

-

_

_

tl.l

-

-

_

_

.9

1.0

1.0

.8

.7

.8

.6

.6

.6

.6

.6

.6

.7

.5

.7

.5

.6

.6

.6

June

0.6

.6

.6

.2

.4

.5

.5

.6

.2

.4

.4

.4

.5

.1

.2

.4

.2

_

_

-

_

,

.1

0

-

_

-

_

_

_

-

July

_

-

0

.1

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

Aug. Sept.

"

t Result of discharge measurement.
SANTA YNEZ RIVER BASIN 145

Santa Ynez River near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°35'20", long. 120°01 I 25", in Canada de los 

Pinos Grant, 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.

Records available.- December 1928 to September 1931, October 1932 to September 1947.

Average discharge.- 17 years (1929-31, 1932-47), 116 second-feet.

Extremes.- Maximum discharge during year, 1,300 second-feet Nov. 20 (gage height, 5.73 

feet); no flow Sept. 1-30.

1929-31. 1932-47: Maximum discharge, 43,700 second-feet Mar. 2, 1938 (gage height, 

17.90 feet), from rating curve extended above float measurement of 34,100 secondfeet; no flow at times in some years.

Remarks.- Records fair. Plow regulated by Jameson Lake and Gibraltar Reservoir. Water 

diverted out of basin from these reservoirs to cities of Montecito and Santa Barbara.

Discharge, in seoond-fset, 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.

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

Nov.

0.1

.1.1 .1 .1

.1 .1 .1 .1 

.1

.1 .1 

.1 .1 .1

.1 .1 .1 

.1

340

50 

8.0 

250 

93 

30

14 

7.5 

5.0 

3.7 

3.1

Dec.

2.7 

2.5 

2.3 

2.3 

2.5

11 

34

13 

12 

10

9.0 

8.0 

7.0 

6.6 

5.8

5.4

5.0 

5.0 

5.0 

5.0

4.7 

4.3 

4.O 

5.0 

163

510 

510 

360 

225 

159 

- 126

Jan.

100 

84 

73 

65 

59

54

50 

47 

44 

43

42

39 

38 

36 

34

30 

29 

28 

27 

26

26 

25 

25 

26 

22

20 

20 

20 

23 

23 

22

Feb.

19 

18 

17 

16 

16

15 

15 

14 

19 

22

28 

28 

25 

22 

22

23 

22

21 

21 

21

21 

20 

19 

19 

19

18 

17 

16

Month

Octo 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

mber ...................................

lendar year 1946 ......................

ary. .......

uary

h.. ....................................

St. ....................................

ember ..................................

ter year 1946-47 ......................

Peak discharge.- N

a.m.) 300 sec. -ft. 3

liar.

15 

15 

15 

16 

15

14 

15 

15 

14 

14

13 

13 

12 

12 

11

11 

11 

10 

9.0 

8.5

9.0 

8.0 

8.0 

8.5 

8.5

7.5 

6.6 

9.0 

11 

15 

18

Apr.

16 

14 

13 

13 

12

11 

11 

9.5 

8.0 

7.5

6.2 

5.8 

5.4

5.0 

4.0

3.1 

2.7 

2.3 

1.9 

1.9

2.1 

2.1 

1.7 

1.6 

1.6

1.6 

1.4 

1.4 

1.4 

1.4

Seocndf cot-day s

3.1 

806.2 

2,231.1

17,165.5

1,200 

553 

367.6 

169.6 

21.4 

13.5 

10.5 

1.42 

0

5,377.42

May

1.4 

1.3 

1.2 

1.0 

.9

.9 

.9 

.9 

.8 

.8

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.5 

.5

> .5

Maximum

0.1 

340 

510

4,830

100 

28 

18 

16 

1.4

O

510

June

. 0.5

> .4

_

Minimum

0.3 

.] 

2.2

.]

20 

14 

6.6 

1.4

O

O

July

' 0.4 

.3

 

Aug.

> 0.1 

. .06

> .02 

. .01

Mean

0.10 

26.9 

72.0

47.0

38.7 

19.8 

11.9 

5.65 

.69 

.45 

.34 

.046 

0

14.7

Sept.

Runoff in 

acre-feet

6.1 

1,600 

4,430

34.06O

2,3SO 

1,100 

729 

336 

42 

27 

21 

2.8 

O

1O, 670

ov. 20 (8:45 a.m.) 1,300 sec. -ft.; Nov. 23 (2 p.m.) 800 sec. -ft.; Dec. 25 (10:30 

Dec. 26 (12:30 a.m.) 330 sec. -ft.) Dec. 26 (1O:15 a.m.) 8OO sec. -ft.
146 SANTA YNEZ RIVER BASIN

Santa Ynez River at Solvang, Calif.

Location.- Water-stage recorder, lat. 34°35'10", long. 120°08'40", in San Carlos de 

Jonata Grant at Mission Bridge, 25 feet downstream from Alisal Creek and 0.9 mile 

south of Solvang, Santa Barbara County.

Drainage area.- 585 square miles.

Records available.- October 1928 to November 1936, June 1937 to November 1940 (irrigation seasons only). October 1946 to September 1947. 1937 to 1946, many miscellaneous discharge measurements.

Extremes.- Maximum discharge during year, 1,250 second-feet Nov. 20 (gage height, 6.15 

feet); minimum daily, 1.5 second-feet Aug. 31 to Sept. 3.

Remarks.- Records fair. Diversions and regulation above station.

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.

y 4.0

4.0 

4.5 

5.0

) 

5.1 

} 5.0

Nov.

\-

4.9 

5.0

11 

L 8.0

7.8 

f325

f87 

f28 

22O 

120 

52

31 

22 

17 

15 

13

Dec.

f!3 

' a!2 

f!2 

12 

12

14 

25 

20 

18 

16

15 

15 

15 

15 

15

15 

15 

15 

15 

15

14 

14 

13 

15 

95

390 

490 

350 

225 

170 

135

Jan.

120 

105 

94 

86 

81

76 

70 

65 

61 

59

57 

55 

54 

52 

5P

48 

47 

47 

45 

43

42 

40 

39 

40 

37

36 

35 

36 

37 

37 

37

Feb.

35 

32 

32 

31 

31

30 

30 

28 

34 

35

36 

36 

34 

31 

30

30 

30 

30 

28 

30

28 

28 

28 

27 

28

30 

30 

30

Month

Ootol 

Nove 

Dece

Ca

Janu 

Febn 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

aber ...................................

Lender year 

& ry

L. .....................................

saber. .................................

ter year 1946-47 ......................

Peak discharge.- 1

(1:45 p.m.} 636 sec.

Mar.

28 

28 

30 

30 

28

26 

26 

26 

26 

25

24 

23 

22 

21 

20

19 

18

' 18 

17 

16

15 

15 

15 

14 

13

13 

12 

20 

21 

23 

27

Apr.

26 

25 

24 

22 

20

20 

19 

18 

16 

15

12 

9.5 

7.3 

8.6 

7.8

7.3 

7.7 

8.2 

8.2 

8.2

7.3 

8.5 

7.3 

6.9 

6.9

9.0 

9.0 

8.2 

7.7 

6.9

Secondfoot-days

140.1 

1,045.7 

2,215

_

1,731 

862 

659 

367.5 

170.5 

118.8 

79.7 

69.4 

64.4

7,523.1

May

6.5 

5.2 

5.8 

7.3 

7.3

5.8 

5.8 

5.5 

5.5 

5.8

6.1 

6.5 

6.5 

6.5 

6.5

6.0 

3.8 

5.2 

4.0 

4.3

4.3

4.6 

4.6 

f4.3 

f4.0

f4.9 

5.5 

5.2 

4.9 

5.8 

6.5

Maximum

325 

490

_

120 

36 

30 

26 

7.3 

6.5 

3.1 

2.9 

2.9

49O

June

6.5 

6.1 

5.5 

4.6 

a4.5

a4.4 

a4.3 

a4.3 

a4.2 

a4.1

a4.0 

f4.0 

3.8 

3.5 

3.8

3.8 

3.8 

3.5 

3.3 

3.8

3.5 

3.3 

3.1 

3.1 

3.3

3.5 

3.5 

3.3 

3.1 

3.3

Minimum

12

_

35 

27 

12 

6.£ 

3.6 

3.3 

2.C 

l.S 

l.E

1.5

July

3.1 

2.9 

2.9 

2.7 

2.5

2.5 

2.5 

2.5 

2.3 

2.3

2.5 

2.7 

2.7 

2.9 

2.5

2.3 

2.1 

2.1 

2.O 

2.O

2.1

2.3 

2.7 

3.1 

3.1

2.9 

2.9

2.7 

2,7 

2.7 

2.5

Aug.

2.3 

2.1 

2.1 

2.0 

1.8

1.8 

2.0 

2.3 

2.7 

2.9

2.9 

2.9 

2.7 

2.3 

2.5

2.5 

2.5 

2.5 

2.5 

2.3

2.0 

1.8 

2.O 

2.0 

2.1

2.5 

2.5 

2.0 

1.7 

1.7 

1.5

Mean

4.52 

34.9 

71.5

-

55.8 

30.8 

21.3 

12.2 

5.50 

3.96 

2.57 

2.24 

2.15

20.6

Sept.

1.5 

1.5 

1.5 

1.7 

1.7

1.8 

1.7 

1.8 

2.O 

1.8

2.0 

2.1 

2.1 

2.1 

2.0

2.1 

2.3 

2.7 

2.7 

2.5

2.1 

2.1 

2.3 

2.3 

2.3

2.5 

2.7 

2.9 

2.7 

2.9

Runoff in 

acre-feet

278 

2,070 

4,390

-

3,430 

1,710 

1,310 

729 

338 

236 

158 

138 

128

14,920

ov. 20 (11:30 a.m.) 1,250 sec. -ft.; Nov. 23 (5:15 p.m.) 620 sec. -ft.; Dec. 26

-ft.

a No gage-height record; discharge interpolated, 

f Computed on basis of partly estimated gage-height record.

Note.- Mo gage-height record Oct. 1 to Nov. 19; discharge computed on basis of 6 discharge 

measurements and weather records.
SANTA YNEZ RIVER BASIN 147 

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 to September 1947. 

Remarks.- Records good.

Discharge, in second-feet, water year October 1946 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. Jan. Feb.

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year ......................

January. ...................................

February. ..................................

March........................... ...........

April........... ...........................

Itar........................... .............

June .......................................

July.......................................

August .....................................

September. .................................

The period. ........ ......................

Mar. Apr.

_

_

_

_

-

1-16

-

_

_

_

t6.7

-

_

_

_

_

-

t4.2

_

_

_

-

t2.6

2.6

2.4

2.4

2.2

-

Seoondfoot-days

_

_

_

_

_

2.15

2.16

1.20

-

May

2.2

-

_

_

-

tl.2

_

_

1 _

tl.l

1.0

1.0

-

_

-

_

tl.2

-

_

_

-

_

-

_

_

tl.O

.9

_

-

Maximum

_

_

_

_

_

_

_

-

-

June

,t0.6

.6

.6

t.2

.3

.2

.2

.2

.2

 3

.3

.3

.3

.3

.3

.3

.3

 3

.3

.3

.3

.3

.3

.3

.3

-

Minimum

~

_

_

_

_

_

_

-

-

July

> 0.2

\ "

..

.01

. .

.1

.1

.1

.1

.1

.1

Aug.

0.1

.1

.1

.1

.1

.1

.1 

.1

.1

.1

 1

}-

> .06

.1

.1

.1

.1

.1

.03

Mean

_

_

_

el. 2

e.33

.07

.07

.04

-

Sept.

.

> 0.03

'

, .05

. .04

}-

-

Runoff in 

acre-feet

_

_

_

74

20

4.3

4.3

2.4

105

t Result of discharge measurement.

e Computed on basis of frequent discharge measurements, 4 days of dally discharge in Hay and 23 

days in June.
148 SANTA YNEZ RIVER BASIN

Santa Ynez River near Lompoe, 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 Lompoe, 

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 1918 (1909, gage heights only), April 

1925 to September 1947.

Average discharge.- 31 years (1907-8, 1910-18, 1925-47), 217 second-feet.

Extremes.- Maximum discharge during year, 575 second-feet Dec. 26 (gage height, 6.75 

reet); no flow during several months.

1908-18, 1925-47: 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 62,000 second-feet, occurred Jan. 9, 1907.

Remarks.- Records fair. Plow regulated by Jameson Lake and Gibralter 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.

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. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

26

180

50

52

210

80

42

35

29

26

22

-

Dec.

19

17

17

17

18

20

21

23

26

26

25

23

23

22

22

21

21

21

20

20

20

20

20

20

25

150

460

390

275

205

17O

Jan.

147

124

107

95

87

80

74

69

66

65

64

63

62

60

59

58

57

56

55

54

51

50

49

48

48

47

46

48

47

46

46

Feb.

46

45

44

44

43

42

41

40

55

58

48

47

47

44

42

41

41

40

36

36

35

33

33

32

32

32

32

32

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

May........................................

July *

September ..................................

Water year 1946-47 ......................

Mar.

31

29

30

32

32

30

29

28

28

27

27

27

26

25

24

23

23

22

21

19

18

17

15

14

13

12

11

18

16

15

15

Apr.

15

16

16

16

16

15

15

14

13

11

8.9

f8.0

a7.0

f6.0

5.3

4.8

4.2

3.8

3.6

3.4

3.2

3.0

2.7

2.7

2.5

2.4

2.Z

2.0

1.9

1.7

-

Seccndfoct-days

2,177

19,633.8

2 028

697

0

7,033.9

May

1.4

1.3

al.Z

1.1

al.O

.9

.9

a. 8

a. 7

a. 6

a. 5

a. 4

a. 4

a. 3

a. 3

a. 2

a. 2

a.l

a.l

a.l

a.l

0

0

0

0

0

0

0

0

0

0

Maximum

460

2,800

0

460

June

Minimum

17

0

0

0

July Aug.

Mean

70.2

53.8

0

19.3

Sept.

Runoff in 

acre-feet

4,320

38,920

25

0

13,940

Peak discharge.- Nov. 21 (1:30 a.m.) 330 sec. -ft.: Hoy. 23 (1 p.m.) 107 see. -ft.; Nov. 24 (5 a.m.)

400 sec.-ft.; Dec. 26 (11:30 p.m.) 575 see.-ft.

a Incomplete or no gage-height reccrd; discharge computed on basis of 2 discharge measurements and 

interpolation.

f Computed on basis cf partly estimated gage-height record.
SANTA YNEZ RIVER BASIN 149 

Santa Ynez River at H Street, near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34"40'10", long. 120°27"SO", in Lompoc Grant, at 

H street Bridge on State Highway 1, 2 miles north of Lompoc< Santa Barbara County.

Records available.- April to September 1947.

Remarks . - Records good.

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. Ncv. Dec.

tie

Jan. Feb.

Month

October. ...................................

November ...................................

December. ...................................

Calendar year ......................

January ....................................

February. ..................................

March. ....................................

April Z6-30 

May

June .......................................

July. .......... . . ....

Augu 

Sept

St..... ................................

ember. .................................

The period. ..............................

Mar. Apr.

_

_

_

_

-

_

t7.6

-

_

_

tZ.7

_

_

_

-

t.3

_

_

-

.1

.1

.1

.1

.1

Seccndfcot-days

0.5 

.3

O

O

O 

0

-

May

0.1

.1

.1

O

0

O

0

O

O

O

O

O

O

O

O

0

O

O

O

0

0

0

0

0

O

O

O

O

O

O

O

Maximum

0.1

.1

O

0

0 

0

-

June

Minimum

0.1 

0

0

O

O 

O

-

July Aug.

Mean

o.lo

.01

o

o

o 

o

-

Sept.

Runoff in 

acre-feet

1.0 

.6

O

0

0 

0

1.6

t Result of discharge measurement.

854211 O - 49 - 11
150 SANTA YNEZ RIVER BASIN

Santa Ynez River at barrier, near Surf, Calif.

Location.- Water-stage recorder and compound broad-crested weir, lat. 34°41'25lf , long. 

i2U"3b'30 , 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 to September 1947. 

Remarks.- Records fair.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

b

6

7

8

10

11

12

13

14

15

16

17

IS

19

20

21

23

25

26

27

28

29

30

31

Oct.

to. 3

Nov.

to. 4

-

Dec.

.

_

_

h!4

.

_

_

_

t22

_

_

-

-

_

_

_

_

-

_

_

_

_

-

Jan. Feb.

Month

Decenber. ...................................

Calendar year ......................

July. ......................................

Septenber. .................................

The period ..............................

Bar. Apr.

_

_

_

-

_

h6.5

-

_

hl.l

_

_

-

hi. 9

h.4

-

_

_

h.3

Seccndfoot-daye

0

-

Hay

_

_

-

fl.l

.6

.2

.4

.7

'.6

.6

.6

.2

.2

.2

.2

.2

.2

.1

.1

.1

Maximum

0

-

June

0.1

.1.1

.1.1

.1

0

0

0

0

0

0

0

0

0

0

o

0

0

Jlininum

0

-

July Aug.

Mean

0

-

Sept.

Runoff in 

acre-feet

1 o

0

19

t Result of discharge measurement.

f Computed on basis of partly estimated gage-height record.

h Computed on basis of 1 gage reading.
SANTA YNEZ RIVER BASIN 

Santa Cruz Creek above Stuke Canyon, near Santa Ynez, Calif.

151

Location.- Water-stage recorder, lat. 34°37'40", long. 119°51'40'', in San Marcos Grant, 

1.5 miles upstream from Stuke Canyon Creek and 13 miles east of Santa Ynez, Santa 

Barbara County.

Records available.- May to September 1947. 

Remarks.- Records good.

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

2b

26

2V

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

December. ..................................

Calendar year ......................

April ......................................

May. .......................................

September ..................................

The period

Mar. Apr.

_

-

_

-

-.

_

_

_

-

.

_

_

t3.3

_

^

_

_

_

t3.5

_

t3.5

_

..

_

_

_

-

Seccndfcot-days

~

_

_

_

47.5

14.3

5.6

3.5

3.69

-

May

t2.2

a2.2

a2.1

a2.1

a2.1

a2.1

a2.O

t2.0

1.9

}..9

1.8

1.9

2.1

2.1

1.9

1.7

1.6

1.4

1.2

1.0

1.0

.9

.9

.8'.8

.8

1.1

1.0

1.0

1.0

.9

Maximum

~

_

_

_

2.2

.9

.2

.3

-

June

0.9

.9

.8

.7

.7

.7

.7

.7

.7

.6

.5

.5

.4

.4

.3

.3

.2

.3

a. 3

a. 3

a. 3

a. 3

.3

.3

.3

.4

.4

.4

.4

.3

Minimum

~

_

_

_

0.8

.2

.1

.1

-

July

0.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

Aug.

O.I

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.1

Mean

_

_

_

1.53

.48

.18

.11

.123

-

Sept.

0.1

.1

B l

.1

\

I

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.2

.3

Runoff in 

acre-feet

_

_

_

94

23

11

6.9

7.3

147

t Result of discharge measurement.

a No gage-height records discharge Interpolated.
152 SANTA YNEZ RIVER BASIN

Santa Cruz Creek near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°34'40", long. lig^S'SO", in Tequepls 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).

Drainage area.- 77.2 square miles.

Records available.- October 1941 to September 1947.

Extremes.- Maximum discharge during year, 910 second-feet Nov. 20 (gage height, 4.05 

1'eet); minimum daily, 0.4 second-foot on many days during November and September. 

1941-47: Maximum discharge not determined, occurred on Jan. 22, 1943; minimum 

daily, 0.4 second-foot in 1947.

Remarks.- Records good. No diversion above station.

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.

0.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.5 

.5 

.5

Nov.

0.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

2.6 

3.0 

1.0

d.7 

d.7 

d.6 

f.6 

183

18 

3.8 

161 

36

11

5.6 

3.0 

1.7 

dl.5 

dl.3

Dec.

dl.l 

dl.O 

fl.O 

1.0 

1.0

20 

18 

8.4 

5.9 

4.8

4.0 

3.7 

3.4 

3.0 

2.9

2.7 

2.7 

2.9 

2.9 

3.0

2.9 

2.9 

2.7 

4.1 

145

83 

83 

50 

33 

25 

20

Jan.

17 

15 

13 

13 

12

11 

11 

10 

9.5 

9.1

8.5 

8.2 

8.2 

8.2 

7.9

7.9 

7.6 

7.9 

7.6 

7.6

7.3 

7.3 

7.3 

7.3 

7.3

7.3 

7.3 

8.5 

9.8 

8.2 

7.9

Feb.

7.0 

7.0 

6.7 

6.7 

6.4

6.1 

6.1 

6.1 

7.0 

8.5

7.6 

7.3 

7.0 

6.7 

6.4

6.1 

6.1 

6.7 

6.4 

6.1

5.9 

5.7 

5.4 

5.4 

5.4

5.2 

5.2 

5.2

Mcnth

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

lendar year 1946 

ary

St. ....................................

ember. .................................

ter year 1946-47 ......................

Peak discharge.- N

(6 a.m.) 350 sec. -ft 

d Doubtful gage-he 

f Computed on basJ

Mar.

5.2 

5.4 

5.4 

6.7 

5.7

5.0 

5.0 

4.8 

4.6 

4.4

4.4 

4.2 

4.2 

4.0 

3.9

3.9 

3.9 

3.9 

3.9 

3.9

3.9 

3.9 

3.7 

3.7 

3.5

3.5 

3.7 

5.0 

5.2 

4.8 

4.6

Apr.

4.4 

4.2 

4.2 

4.4 

4.0

3.9 

3.5 

3.5 

3.2 

3.0

2.9 

2.6 

2.3 

2.2 

2.1

2;0 

2.0 

2.0 

2.0

2.1

2.3 

2.4 

2.6 

2.4 

2.3

2.7 

2.4 

2.3 

2.1 

2.0

Second 

foot-days

17.8 

440.4 

545.0

3,578.1

285.7 

177.4 

137.9 

84.0 

42.7 

27.4 

20.4 

15.6 

12.9

1,807.2

ov. 20 (6:45 a.m.) 910 sec. -ft.; Ho 

.; Dec. 25 (9:15 p.m.) 200 sec. -ft. 

ight record; discharge computed on 

s of partly estimated gage-height r

May

1.8 

1.8 

1.7 

1.6 

1.6

1.5 

1.5 

1.5 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2 

1.1

Maximum

0.6 

183 

145

563

17 

8.5 

6.7 

4.4 

1.8 

1.1 

.8 

.6 

.5

183

r. 23 (11:3C 

; Dec. 27 (] 

>asis of noi 

scord.

June

1.1 

1.1 

1.1 

1.1 

1.1

1.0 

1.0 

1.0 

1.0 

1.0

.9 

.9 

.9 

.9 

.9

'.9 

.9 

.9 

.9 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

Minimum

0.,

,2

l.C

.4

7.: 

5.;

3.E 

2.C

1.]

.£

.e

'."4

.4

July

0.8 

.8 

.7 

.7 

.7

.7 

.7 

.8 

.8

.7

.7 

.7 

.7 

.7 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6- 

.6 

.6 

.6 

.6

Aug.

0.6 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

* .5 

.5 

.5 

.5 

.5 

.5

Sept.

0.5 

.5 

.4 

.4 

.5

.5 

.5 

.5 

.4 

.4

.4 

.4 

.4 

.4 

.5

.5 

.5 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 .

.4 

.4 

.4 

.4 

.4

Maan Runoff in Mean acre-feet

> 0.57 35 

I 14.7 874 

) 17.6 1,080

I 9.80 7,100-

9.22 567 

' 6.34 352 

> 4.45 274 

) 2.80 167 

1.38 85 

.91 54 

.66 40 

.50 31 

I .43 26

4.95 3,580

) a.m.) 625 sec. 'ft. j Dec. 25 

p.m.) 110 sec. -ft." 

*mal recession.
SANTA YNEZ RIVER BASIN

Santa Agueda Creek near Santa Ynez, Calif.

153

Location.- Water-stage recorder, lat. 34°35'40", long. 120°01'3|)" , in Canada de los Pinos 

urant , at highway bridge 0.8 mile upstream from mouth and 3.6 miles southeast of Santa 

Ynez, Santa Barbara County. Altitude of gage, about 520 feetDrainage area.- 56.4 square milas.

Records available.- January 1941 to September 1947.

Extremes.- Maximum discharge during year, 250 second-feet Nov. 20 (gage height, 1.90 

reet ) minimum daily, 0.1 second- foot on many days.

1941-47: Maximum discharge, 1,580 second-feet Mar. 3, 19fll (gage height, 4.60 

feet); minimum daily, 0.1 second-foot on many days in 1942, 1947 and several days in 

1945, 1946. *

Remarks . - Records poor. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1945 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.

fO.7 

.7 

.7 

.7

.7 

a. 6

f.6 

a. 6 

a. 6

a. 6 

a. 6 

a. 6 

f .fi

.6 

f.6 

a. 6 

a. 6

a. 5

a. 5 

f.5 

.4 

.4 

.5

.6 

f.6 

f.5 

.5 

.5 

.5

Nov.

0.5 

.5 

.5 

.5

.6 

.7

.7 

f.7 

a. 7

a. 7 

a. 7

a2.0 

al.5

1.0 

1.0 

.9 

f.8

29

1.3 

1.1 

37 

f2.0 

2.0

1.5 

1.3 

1.3 

1.1 

1.1

Dec.

1.1 

1.1 

1.1 

1.1

2.2 

2.0

1.7 

1.5 

1.3

1.1 

1.1 

fl.l 

al.l

fl.l 

1.1 

1.1 

1.0

1.0

1.0 

1.0 

1.0 

1.3 

2.0

1.5 

5.0 

1.5 

1.1 

1.1 

1.1

Jan.

1.1 

1.1 

1.1 

1.3

1.0

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0 

1.0

Feb.

1.0 

1.0 

1.0 

1.0

1.0

1.0 

1.5

1.1

1.0 

.9 

.9 

.9

.9 

.9 

.9

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9

Uonth

Ooto 

Hove 

Decs

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

her. ............ .......................

mber. ...................................

lendar year 1946 

ary

1. .....................................

ember. .................................

ter year 1946-47 ......................

Mar.

0.9 

.9 

.9 

.9

.9 

.8

.8 

.8 

.8

.8 

.8 

.8 

.8

.8 

.8 

.8

.8

.8 

.8 

.8 

.8 

.3

.8 

.9 

.9 

.9 

.8 

.8

Apr.

0.7 

.7 

.7 

.7

.7 

.6

.6 

.6 

.6

.5 

.5 

.5 

.5

.5

.5 

.4 

.4

.3

.3 

.3

.3

.3 

.3

.3 

.3 

.3

.3 

.3

Secondfoot-days

18.0 

94.4 

42.8

595.0

31.7 

26.9 

" 25.6 

14.0 

6.6 

3.0 

4.7 

8.2 

5.5

281.4

May

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 

.2 

.2 

.2 

.2

Maximum

0.7 

37 

5.0

122

1.3 

1.5 

.9 

'.3 .7 

.1 

.3 

.4 

.2

37

June

0.1 

.1 

.1 

.1

.1 

f.l

a.l 

a.l 

a.l

.1 

.1 

.1 

.1

.1

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Minimum

0.4 

.5 

1.0

.1

1.0 

.9 

 8 

.3 

.2 

 1 

.1 

.2 

.1

.1

July

0.1 

.}

.: .1

.1 

.1

.1 .1 

.1

.1 .1 

.1 .1

.1

.1 

.1 

.1

.1 

.1

.2 

.2 

.2 

.2

.3 

.3 

.3 

.3 

.3 

.3

Aug.

0.

.4

.3 

.3

.3

.3 

.3 

.3 

.2

.2

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Mean

0.58 

3.15 

1.38

1.63

1.02 

.96 

.83 

.47 

.21 

.10 

.15 

.26 

.18

.77

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

.1 

.1 

.1 

.1 

.1

Runoff in 

acre-feet

36 

187 

85

1,180

63 

53 

51 

28 

13 

6.0 

9.3 

16 

11

558

Peak discharge.- Hov. 20 (6s30 a.m.) 250 sec. -ft.; Nov. 23 (11:30 aim.) 150 sec. -ft.

or interpolation.

f Computed on basis of partly estimated gage-height record.

Note.- For daily discharge of 1.0 sec.-ft. or less, after Dec. 18, jiischarg 

of discharge measurements, gage heights, diurnal fluctuation, and weather reci 

application of stage-discharge rating.

je is computed on basis 

icords, without direct
154 SANTA YNEZ RIVER BASIN

La Zaca Creek at Buellton, Calif.

Location.- Water-stage recorder, lat. 34°36'35", long. 120°11'15", in San Carlos de

Jonata Grant, at culvert on State Highway 150 in Buellton, Santa Barbara County. Altitude of gage, about 340 feet.

Drainage area.- 38.7 square miles.

Records available.- January 1941 to September 1947.

Extremes.- Maximum discharge during year, 8 second-feet Nov. 20 (gage height, 2.51 feet); 

no now during most of year.

1941-47: 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.- Records poor. No diversion. In addition to discharge shown in tables, a very 

slight flow occurred for an hour or less each day on many days during period Nov. 11 

to Mar. 4.

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. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

.2

.5

0

0

0

0

.1

.4

0

0

.4

0

0

0

0

0

0

0 -

Dec. Jan. Feb.

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. ................................. ...

April. .....................................

May. .......................................

June .......................................

July .......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

0

1.6

0

11.46

0

0

0

0

0

0

0

0

0

1.6

 May

Maximum

0

.5

0

5.1

0

0

0

0

0

0

0

0

0

.5

June

Minimum

0

0

0

0

0

0

0

0

o

0

0

0

0

0

July Aug.

Mean

0

.05

0

.031

0

0

0

0

0

0

0

0

0

.004

Sept.

Runoff in 

acre-feet

0

3.2

0

22 '

0

0

0

0

0

0

0

0

0

3.2
SANTA YNEZ RIVER BASIN 155

 Salsipuedes Creek near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°34 I 55", long. 120 0 24'&5", near northern edge of 

ban 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 1947.

Extremes.- Maximum discharge during year, 96 second-feet Nov. B3 (gage height, 3.99 

reetj; minimum daily, 0.1 second-foot on many days.

1941-47: Maximum discharge, 7,190 second-feet Mar. 3, 1941 (gage height, 19.95 

feet); minimum daily, 0.1 second-foot on many days 1945-47.'

Remarks.- Records good. Small diversions for irrigation above station.

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.

0.1

.1 

.1

.2 

.2

.2 

.2 

.2 

.2 

.1

.1 

.1 

.1 

.2 

.2

.3 

.3 

.3 

.3

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3 

.3

Nov.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.4 

.6 

2.2 

3.1 

1.2

.7 

.6 

.5 

2.1 

25

2.2 

1.4 

26 

5.'9 

3.3

2.2 

2.0 

1.5 

1.3 

1.1

Dec.

1.0 

1.0 

1.1 

1.1 

1.4

2.2 

2.2 

1.5 

1.3 

1.2

1.2 

1.2 

1.2 

1.2

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.1 

1.2 

10

18 

17 

8.5 

5.2 

3.9 

2.9

Jan.

2.7 

2.4 

2.1 

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

2.2 

2.0 

2.0

2.0 

2.0 

2.1 

2.1 

2.1

2.0 

2.0 

2.0 

1.8 

1.8

1.8 

1.8 

3.2 

3.0 

1.6 

1.4

Feb.

1.4 

1.4 

1.4 

1.3 

1.3

1.3 

1.3 

1.3 

19 

8.8

3.9 

2.9 

2.6 

2.1 

2.0

2.0 

2.1 

2.0 

1.8 

1.7

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.7

Month

Octo 

Neve 

Decs

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

iber. ...................................

lendar year 1946 ......................

ary

h....................... ...............

1. .....................................

St............... ......................

ember. .................................

ter year 1946-47 ......................

Peak discharge.- Hov. 2O

Mar.

1.6

2.2 

3.4 

2.0

1.6 

1.6 

1.6 

1.6 

1.5

1.5 

1.4 

1.4 

1.5 

1.6

1.5 

1.5 

1.6 

1.6 

1.6

1.6 

1.5 

1.3 

1.3 

1.2

.7 

.8 

dlo 

d6.0 

4.7 

2.7

Apr.

2.0

2.0 

2.0 

1.5

1.4 

1.1 

.7 

.6 

.6

1.0 

.7 

.5 

.5 

.5

.4 

.3 

.4 

.6 

.6

.4 

.2 

.5 

.5 

.6

.7 

.7 

.7 

.7 

.6

Seccndf cot-days

6.2 

86.3 

96.2

952.0

64.1 

75.9 

65.8 

24.7 

7.0 

3.0 

3.1 

3.1 

3.0

438.4

May

0.4

.3 

.3 

.3

.3 

.3 

.3 

.3

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1

.2

.2 

.2 

.1 

.2 

.1

Maximum

0.3 

26 

18

142

3.2 

19 

10 

2.0 

.4 

.1 

.1 

.1 

.1

26

June

0.1

.1 

.1 

.1

.1 

.1 

.1 

 1 

.1

.1 

.1 

.1 

.1 

.1

.1 

,1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Minimum

0.1 

.3 

1.0

.1

7 

1.4 

1.3 

.7 

.2 

.1 

.1 

.1

:i

.1

July

0.1

.1 .1 

.1

.1 .1 .1 .1.1

.1 .1 

.1 .1 .1

.1 

.1 

.1 .1 .1

.1 

.1 .1 

.1 .1

.1 .1 

.1 .1 .1 .1

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

Mean

0.20 

2.88 

3.10

2.61

2.07 

2.71 

2.12 

.82 

.23 

.10 

.10 

.10 

.10

1.20

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

Runcff in 

acre-feet

12 

171 

191

1,890

127 

151 

131 

49 

14 

6.0 

6.1 

6.1 

6.0

870

7:15 a.m.) SO see. -ft.; Hov. 23 (8:15 a.m.!) 96 sec. -ft.; Dec. 25 /7:15

60 see.-ft. ]

d Doubtful gage-height record for part of day; discharge computed on basis of partly estimated 

gage-height record.
J5° SAN ANTONIO CREEK BASIN

San Antonio Creek at Harris, Calif. 

Location.- Water-stage recorder, lat. 34°45'45", long. 120°25 I 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.

Records available.- January 1941 to September 1947.

Extremes.- Maximum discharge during year, 7.0 second-feet Nov. 20 (gage height, 3.28 

reet); no flow except on four days in November.

1941-47: 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 large part of each year.

Remarks.- Records fair. Water pumped from wells above station for irrigation. Some 

irrigation water wasted into creek above station on Apr. 24 is not included in this 

record.

Discharge, in seccnd-feet, water year October 1946 tc September 1947

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

228

29

30

31

Oct. Nov.

o

0

0

0

o

0

0

0

o

0

0

o

0

o

0

0

0

o

.1

1.6

0

0

.2

.1

0

0

0

0

0

0

Dec. Jan. Feb.

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

Mnv

September ..................................

Water year 1946-47 ......................

Mar. Apr.

Seocndfoot-days

o

150.3

O

2.0

Hay

Maximum

o

45

O

1.6

June

Minimum

0

0

o

0

July Aug.

Mean

0

.41

0

.005

Sept.

Runoff in 

acre-feet

0

299

0

0

4.0
SANTA MARIA RIVER BASIN 157

Cuyama River near Ventucopa, Calif.!

Location.- Water-stage recorder, lat. 34°41'10", long. 119°21'3d", in NE&SW^ sec. 19, 

T. V N., R. 23 W., at Ozena Bridge on U. S. Highway 399, 4.5 jmiles downstream from 

confluence of Dry Canyon and Alamo Creek and 12 miles southeast of Ventucopa. Altitude of gage, about 3,500 feet.

Drainage area.- 90 square miles.

Records available.- November 1944 to September 1947. Miscellaneous discharge measuremenra, June 1943 to September 1944.

Extremes.- Maximum discharge during year not determined; minimuty daily, 0.4 second-foot 

on many days during June to September.

Remarks.- Records poor.

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

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

Ui t2.0

U1 tl.7

> 2.0

t2.2

. 2.5

t2.8

} 2 ' 8

Ncv.

.

1 2.8

t2.8

) 

t3.3

3.5

150

. t!2

1 . ;f t5.6

5

100

15

t!3

100

15

t!3

t8

},

Dec.

4.2

4.2 

4.9

5.7

6.8

6.8

4.2

4.9

4.2

4.2

4.6

4.2

3.9

3.6

3.6

3.3

> 3.5

100

450

175

75

54

30

18

17

Jan.

15

12 

11

11

10

9.8

9.3

8.8

8.3

7.8

6.4

6.0

6.0

5.7

5.7

5.7

5.7

6.0

5.7

6.0

6.0

6.0

5.7

5.7

5.3

4.9

4.6

6.8

6.0

' 5.7

5.7

Feb.

5.3

> 5.3

12

8.3

6.8

4.6

4.6

4.6

5.7

4.6

4.6

» 4.5

t4.4

4.2

4.3

4.5

4.6

-

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March.......... ............................

April......................................

May. .......................................

June .......................................

July............... ........................

August .....................................

September. .................................

Water, year 1946-47 ......................

Mar.

4.6

4.2 

4.2

4.6

6.8

4.9

4.6

4.2

3.8

3.3

'4.9

4.9

6.0

4.2

3.6

3.6

3.3

3.3

3.0

6.5

7.5

5.0

4.0

3.6

3.9

3.9

3.9

11

V

I 6.0

'

Apr.

},.

4.9

4.6

4.6

4.2

3.3

3.0

3.3

4.9

4.9

3.9

4.2

3.9

3.6

3.3

3.3

3.9

3.9

3.9

11

>

1

\ 3.5

I

)

~

Secondf cot-days

69.9

514.6

1,016.8

4,251.0

224.3

146.1

149.3

130.1

47.2

34.6

14.0

14.7

18.9

2,380.5

May

2.2

t2.0

1.8

2.4

1.8

1.8

1.8

1.8

2.1

J,

tl.O

1.0

1.2

.9

.9

.8

.8

.6

.9

1.4

1.4

1.4

1.6

Maximum

_

150

450

450

15

12

11

11

2.4

2.4

.5

.8

.9

450

June

1.8

1.7 

1.8

2.1

2.4

2.1

1.8

1.8

1.8

1.6

1.0

.9

.9

.9

.9

.9

1.0

1.0

.9

.9

.9

.8

.8

.8

.6

.6

.5

.5

.5

.4

~

Minimum

_

_

__i_3J 3_

1.2

4.6

4.2

3.0

3.0

.6

.4

 4

.4

.4

.4

July

0.4

.4 

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

Aug.

0.4

,4 

.4

.4

.4

.4

.4

.5

.8

.6

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.4

.4

.5

.6

.6

.8

.6

Mean

2.25

17.2

32.8

11.6

7.24

5.22

4.82

4.34

1.52

1.15

.45

.47

.63

6.52

Sept.

0.5

.5 

.5

.4

.4

.4

.4

.4

.5

.5

.6

.5

.5

.5

.5

.5

.6

.8

.8

.8

.9

.9

.6

.8

.8

.8

.8

.8

.8

.9

~

Rune ft in 

acre-feet

139

1,020

2,020

8,430

445

290

296

258

94

69

28

29

37

4,720

t Discharge measurement made on this day.

Note.- Prior to June there were many periods of fragmentary or no gag^-height record for which 

discharge was Interpolated or estimated on basis of frequent discharge measurements and- weather 

records.
158 SANTA MARIA RIVER BASIN

.Cuyama River near Santa Maria, Calif.

Location.- Water-stage recorder, lat. 35°00 I 50", long. 120°16'45", in Suey Grant, at 

nignway 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 at different datum 

has been used since Feb. 3, 1945.

Drainage area.- 912 square miles.

Records available.- December 1929 to September 1947.

Average discharge.- 17 years (1930-47), 25.8 second-feet.

Extremes.- Maximum discharge during year, 500 second-feet Nov. 13, Dec. 2b, from-rating 

curve extended above 30 second-feet; no flow Sept. 11-30 and during parts of many other 

days.

1929-47: 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 except those above 50 second-feet, which are poor. Some water for 

irrigation pumped from wells along banks of river above station.

Discharge, in second-feet, water year October 1946 to September 1947

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.

10

f25

fIZ

f8.0

a7.0

a6.0

a5. 5

f4.9

4.7

4.7

4.2

3.7

3.5

3.5

3.9

4.4

4.2

4.2

4.2

4.4

4.4

3.9

3.9

3.9

4.4

4.4

4.7

4.9

4.9

4.9

4.9

Nov.

5.2

5.2

5.2

5.2

5.5

5.8

6.1

6.4

6.7

6.1

6.7

8.7

f50

a250

a50

f20

13

12

15

f50

f43

20

20

f70

f24

16

f!5

d!4

d!3

d!2

-

Dec.

dll

dll

flO

11

11

14

18

15

13

12

12

11

11

11

11

11

11

10

10

10

10

11

11

13

f!65

a200

a40

f!7

13

12

12

Jan:

12

13

12

12

11

11

11

flO

10

10

10

10

111111

1111

12

12

12

12

12

11

11

11

12

12

14

15

13

12

Feb.

12

12

11

11

11

11

11

11

12

15

12

12

12

12

11

11

11

11

11

11

10

10

10

10

10

10

10

10

_

_

-

Month

October. ...................................

November. ...................'...............

December. ...................................

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March. .....................................

April ......................................

June .......................................

July .......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

10

10

10

12

14

14

13

12

11

11

10

10

10

10

10

10

10

10

9.7

10

10

12

11

10

8.9

8.5

8.9

9.7

9.7

8.9

8.2

Apr.

8.2

7.8

9.3

10

10

8.9

d8.3

d7.7

d7.0

d6.4

f5.8

5.5

5.2

4.2

4.0

3.5

3.1

3.1

2.9

3.3

3.5

3.3

3.5

5.0

5.5

17

13

f7.5

6.1

5.2

-

Seccndfoct-days

177.2

779.8

738

3 J* 920 1

358

311

322 5

193 .8

51 . 6

6.5

.71

.31

.10

2,939.52

May

3.7

3.3

d3.0

d2.7

d2.4

d2.1

fl.8

1.8

2.2

2.7

2.4

2.4

2.5

2.5

2.2

2.0

1.9

1.4

1.1

.8

.8

.6

.6

.6

.6

.6

.7

.5

.5

.6

.6

Maximum

25

250

200

250

15

15

14

17

3.7

.5

250

June

0.5

.4

.5

f.4

.4

.4

.3

.3

.3

.4

f .2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

» .1

.1

.1

.1

.1

.1

.1

-

Minimum

3.5

5.2

10

.2

10

10

8 z'.s2

.5

.1

0

0

July

>e0.06

e.03

> e.02

. e.Ol

Ang.

> eO.Ol

Mean

5.72

26.0

23.8

10.7

11.5

11.1

10.4

6.46

1*66

.22

023 !oio

.003

8.05

Sept.

> eO.Ol

' 0

-

Runoff in 

acre-feet

351

1,550

1,460

7,780

710

617

640

384 -102

13

1.4

.6

.2

5,830

a No gage-height record; discharge computed on basis of normal recession.

d Doubtful gage-height record; discharge interpolated.

e Daily discharge less than 0.1 sec.-ft.

f Computed on basis of partly estimated gage-height record.
SANTA MARIA RIVER BASIN 

Santa Maria River at Guadalupe, Calif).

159

Location.- Water-stage recorder, lat. 34°58'25", long. 120C 34'1|5", 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 of 

1934 (Corps of Engineers, bench mark).

Drainage area.- 1,763 square miles.

Records available.- January 1941 to September 1947.

Extremes.- Maximum discharge during year not determined; no flow for several months.

1931-47; Maximum discharge, 14,700 second-feet Mar. 5, 1941 (gage height, 8.00 

feet); no flow during several months of each year.

Remarks ± - Records poor. Several small surface diversions and ejxtensive pumping from

ground water in basin above station for irrigation, and considerable losses of surface 

flow by infiltration to ground water. During wet years wherJ water table is high, 

returns from ground water in lower part of basin cause surface flow at this station.

Discharge, in second-feet, water year October 1946 tc 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.

0

.5

tl.4

.1.0

t.4

NOT.

y

10

100

50

ZO

7.0

7.Z

15

200

30

3.8

9.Z

250

24

11

4.6

Z.5

1.0

.5

-

Dec.

0

0

o

0

.z

.3

3.0

2.0

tl.4

1.2

1.0

.8

.6

.4

.2

.1

0

0

0

0

0

0

0

.3

.1

350

100

30

13

5.0

3.0

Jan.

2.0

1.5

.7

.5

.3

.1

0

O

0

0

.1

.3

.4

.6

.4

.3

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

Month

Octet 

Novel 

Decei

liber. ..................................

iiber.................... ................

Calendar year 1946 ......................

March. .....................................

May. .......................................

September. .................................

Hater year 1946-47 ......................

Bar. Apr.

Seccndfoot-days

9.7 

745.8 

512.6

2,733.4

0

0

0

1,275.6

May

Maximum

1.4 

250 

350

850

2.0

0

0

0

0

Z50

June

Minimum

0 

0 

0

0

0

0

0

0

0

0

0

0

0

0

July Attg.

Mean

0.31 

24.9 

16.5

7.49

.24

0

0

0

0

0

0

0

0

3.49

Sept.

Runoff in 

acre-feet

19 

1,480 

1,020

5,430

15

0

0

0

0

0

0

0

0

2,530

t Discharge measurement made on this day.

Note.- Dally discharge computed on basis of fragmentary gage-height|record. Stage-discharge 

relation very uncertain above 50 sec.-ft.
160 SANTA MARIA RIVER BASIN

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 1947.

Extremes.- Maximum discharge during year, 8.7 second-feet Nov. 20 (gage height, 2.13 

feet); minimum daily, 0.5 second-foot Aug. 1.

1943-47: Maximum discharge, 700 second-feet Feb. 2, 1945 (gage height, 4.34 feet); 

minimum daily, that of Aug. 1, 1947. *

Remarks.- Records fair. No diversion above station.

Discharge, in second-feet, water year October 1946 tc September 1947

Day

2 

3

5

6

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.3

1.1

1.0 

.9

.9

1.0 

1.1 

1.4

1.8 

1.4

1.4 

1.6 

1.4 

1.4 

1.4

1.6 

1.6 

1.6 

1.4 

1.4 

1.4

Nov.

1.3

1.4

1.3 

1.3

1.4

3.2

1.6

1.4 

1.3

2 5

2.7 

2.3 

2.9 

2.3 

2.1

2.0 

1.8 

1.8 

1.6 

1.6

Dec.

2.0

1.3 

1.3

1.4

1.4

1.6 

1.6

1.6 

1.6 

1.6 

1.8 

2.0

2.0 

2.3 

1.8 

1.4 

1.4 

1.4

Jan.

1.4

1.4

1.3

1.4

1.4

1.4

1.4

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.3

1.3 

1.3

Feb.

1.4

J..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

Month

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ...................................

lendar year 1946 

ary

I......................................

st... ..................................

ember. .................................

ter year 1946-47 ......................

Mar.

1.1

1.3

1.3

1.3

1.3

1.3

1.3 

1.3 

1.3 

1.3 

1.2

1.3 

1.3 

1.8 

1.4 

1.5 

1.1

Apr.

1.3 

1.3

1.1

1.0 

1.0 

1.0

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0

1.1 

1.1 

1.1

Seccndfoot-days

40.2 

56.0 

48.8

61S.8

43.3 

39.2 

40.4 

32.4 

28.5 

23.2 

22.2 

19.5 

20.2

413.9

May

1.

1. 

1.

J 

0 

0 

0 

3

3

.9

.9 

.9 

.9 

.9 

1.0

1.0 

3.0 

.8 

.8 .'9

.9 

.9 

.8 

.9 

.9

.9 

1.0 

.8 

.8 

.8 

.8

Maximum

1.8 

4.8 

2.3

5.7

1.6 

1.4 

1.8 

1.4 

1.0 

1.0 

1.0 

.7 

.8

4.8

June

0.8 

.8 

.8 

.8 

.9

.9

.8

.8

.8 

.8 

.S 

.8 

.S

.8 

.8 

.8 

.8

.7

.7 

.6 

.6 

.6

.7

.7 

.7 

.7 

.7

.7

Minimum

0.9 

1.3 

1.3

.9

1.3 

1.4 

1.1 

1.0 

.8 

.6 

.6 

.5 

.6

.5

July

0.8 

.9 

.8 

.8 

.9

1.0 

1.0 

.9 

.9 

.9

.8 

.8 

.7 

.7 

.6

.6 

.6 

.6 

.6 

.6

.6 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6 

.6

Aug.

0.5 

.6 

.6 

.6 

.6

.6 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.7 

.7

.7 

.6 

.6 

.6 

.7

.7

.7 

.7 

.7 

.7 

.6

Mean

1.30 

1.87 

1.57

1.68

1.40 

1.40 

1.30 

1.08 

.92 

.77 

.72 

.63 

.67

1.13

Sept.

0.6 

.7 

.7 

.7

.7

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.7

.8 

.8 

.8 

.7 

.6

.6 

.7 

.7 

.7 

.7

.7 

.7 

.8

.r

.7

Runcff in 

acre-feet

80 

111 

97

1,220

86 

78 

80 

64 

57 

46 

44 

39 

40

822
SANTA MARIA RIVER BASIN 

Huasna River near Santa Maria, Calif.1

161

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 Mar^a, 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 1947.

Average discharge.- 17 years (1930-47), 23.7 second-feet.

Extremes.- Maximum discharge during year, 32 second-feet Nov. 20 (gage height, 2.01 feet 

at temporary gage currently In use); no flow June 22 to Seplf. 30.

1929-47: Maximum discharge, 11,400 second-feet Feb. 11, 1938 (gage height, 11.26 

feet), by slope-area method; no flow during parts of several years.

Remarks.- Records fair. No diversion above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

10

11

12

13

15

16

17

18

19

21

23

24

25

26

27

29

30

31

Oct.

fO.2

.3

.3

.4

.4

.5

.4

.4

-,3

.3

.2

.2

.2

.5

1.7

1.3

1.1

.8

.8

.6

.6

.5

.5

.3

.4

.6

.8

.9

.9

.9

Nov.

0.8

.8

.8

.3

.9

.9

.9

1.1

1.1

1.1

1.5

2.0

6.0

3.1

2.2

1.7

1.5

3.5

23

10

5.2

6.5

13

4.8

2.8

2.0

d2.0

d2.0

d2.0

-

Dec.

dl.9

dl.9

fl.9

1.9

2.3

3.3

3.0

2.5

2.3

2.3

2.3

2.1

2.1

2.1

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

2.5

3.3

4.2

4.8

3.9

3.0

2.5

2.3

Jan.

3.3

2.3

2.3

2.3

2.3

2.3

2.1

2.1

2.1

2.1

2.1

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

2.1

2.1

1.9

1.9

2.1

2.3

3.9

3.0

2.3

2.1

Feb.

1.9

1.9

1.9

2.1

2.1

2.1

2.1

2.1

2.3

2.5

2.4

2.8

2.8

2.5

2.5

2.5

2.3

2.3

2.3

2.1

2.1

1.9

1.9

1.9

1.9

1.9

1.7

_

-

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April ......................................

May. .......................................

Water year 1946-47 ......................

Mar.

1.7

2.1

2.1

3.0

2.1

1.7

1.5

1.5

1.5

1.7

1.9

2.1

2.1

2.3

2.3

2.3

2.1

2.1

d2.1

d2.0

d2.O

dl.9

dl.9

dl.9

1.9

1.9

4.5

3.3

d2.5

1.7

Apr.

1.7

1.7

1.9

1.7

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.3

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.3

1.3

1.1

1.1

1.1

1.3

1.1

1.1

1.1

1.0

Seccndfoct-days

75.7

1,480.2

39 1

469.1

May

0.9

.9

.9

.7

.7

.9 l.'O

l.O

.9

.9

.9

.9

.9

1.0

.9

.7

.7

.6

.6

.7

.9

.9

1.0

1.3

.9

.6

.7

.9

Maximum

4.8

380

3 9

2 8

1 9

g

23

June

O.6

.5

.4

.4

.7

.9

.7

.7

.6

.4

.2

.1

.1

.1

.1

.1

d!l

d.l

d.l

.1

O

0

0

0

0

0

0

0

0

Minimum

1.9 "1"--.!

1 9

0

0

July Aug.

Mean

2.44

4.06

2 1 R

2 19

2 12

1.29

Sept.

Runoff in 

acre-feet

150

2,940

932

d Doubtful gage-height record) discharge Interpolated.

f Computed on basis of partly estimated gage-height record.
162 SANTA MARIA RIVER BASIN

Sisquoe River near Sisquoo, Calif.

Location.- Water-stage recorder, lat. 34°50'15", long. 120°10 I 10", in SEy sec. 20, T. 9 

w., K. 31 W., 2 miles upstream from Labrea Creek and 7 miles east of Sisquoe, 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 about 1,000 feet upstream at dif. 

ferent datum is generally used for periods of low flow.

Drainage area.- 290 square miles.

Records available.- October 1943 to September 1947. December 1929 to September 1933 at 

same site out below diversions; records comparable for high discharge only.

Extremes.- Maximum discharge during year, 1,150 second-feet Nov. 23 (gage height, 3.21 

reet); maximum gage height, 3.37 feet Nov. 20: minimum daily discharge, 0.4 secondfoot Sept. 14, 19, 21.

1930-33, 1943-47: 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, that of 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. Records show discharge of Sisquoe River above all diversions, 

ana above area of percolation losses.

Discharge, in second-fset, water year October 1946 tc 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.

0.8

.8

.8

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

1.0

.8

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

.6

.6

Nov.

0.6

.e

.6

.e

.6

.6

.e

.7

.7

.6

.£

1.4

5.1

2.S i.e

1.6

1.4

1.4

2.5

290

f65

f!6

330

175

55

27

18

13

9.5

7.2

-

Dec.

6.2

5.E

5.C

5.C

5.5

6.8

35

29

21

19

17

15

14

13

12

12

11

11

10

9.5

9.5

9.0

9.0

9.0

215

260

151

126

78

58

47

Jan.

40

34

2£

26

24

23

22

21

2C

19

19

IS

IS

16

17

16

16

15

15

15

14

13

' 1313

13

12

13

15

17

16

14

Feb.

12

IS

12i:

11

111]1]

12

16

16

15

1<

1<

14

14

15

14

13

13

12

11

11

1C

10

10

1C

1C

_

-

-

Month

December.-. ..................................

Calendar year 1946 ......................

March........... ...........................

Hay

September ..................................

Water year 1946-47 ......................

Har.

9.5

9.5

12

14

15

13

13

12

12

11

10

10

9.5

9.5

9.5

10

10

10

9.3

10

10

10

10

9.5

9.0

9.0

8.5

8.5

8.5

8.5

8.5

Apr.

8.0

7.5

8.5

8.5

8.5

8.0

7.0

6.0

5.5

5.5

5.0

4.0

4.0

4.0

3.8

3.8

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.2

-

Seccndf cot-days

20.4

1,234.0

9/837.9

43.1

14.7

3,855.7

Hay

3.2

3.2

3.2

2.9

2.9

2.6

2.6

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.0

2.0

1.8

1.8

1.8

1.8

1.8

2.0

2.0

Maximum

330

260

2,270

40

8

C

1.8

.5

330

June

1.6

1.6

1.6

1.8

1.8

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.1

1.1

1.1

1.3

1.3

1.3

1.3

1.3

1.3

1.3

-

Minimum

0.6

.6

5.0

.6

12

1.1

.4

.4

July

1.3

1.3

1.3

1.4

1.4

1.3

1.3

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.8

.8

.8

.8

.8

.8

.9

.9

1.0

1.0

Aug.

0.8

.8

.8

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

Mean

"f) 66

39.8

27.0

18.7

1.44

.49

10.6

Sept.

0.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.5

.5

.5

.5

.4

.5

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

-

Runoff in 

acre-feet

2,040

2,450

19,510

1,150

29

7,640

Peak discharge.- Nov. 2O (11 a.m.) 1.100 sec. -ft.:1 Nov. 23 (3 p.m.) 1.15O sec. -ft.: Dec. 25

(11 a.m.) 500 sec.-ft.j Dec. 26 (z: a.m.) 46O sec.-ft.

f Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Oct. 1-14, 19-27, Oct. 3O to Nov. 6; discharge computed on basis of 

5 discharge measurements.
SANTA MARIA RIVER BASIN 163 

Sisquoc River near Gary, Calif.

Location.- Water-stage recorder, lat. 34°51'40", long. 120°15'45", in NE£ sec. 17, T. 

9 N., H. 32 W., 0.5 mile downstream from 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 1947.

Extremes.- Maximum discharge during year, 900 second-feet Nov. 23 (gage height, 4.76 

reet); no flow during most of year.

1941-47: 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.- Records poor. Some water is diverted above station for irrigation, 

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. Nov.

0

0

o

0

0

o

0

0

0

0

o

o

o

0

0

0

0

0

0

180

40

0

e200

175

20

0

0

0

o

0

-

Dec.

0

o

0

0

0

0

0

0

o

0

o

o

0

0

o

o

0

0

o

0

o

0

o

0

a!20

200

90

70

22

6.3

.8

Jan. Feb.

Month

October. ...................................

November ...................................

December ....................................

Calendar year 1946 ......................

January. ...................................

February

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar. Apr.

Seoondfoot-daye

0

615

509.1

4,835.9

O

0

0

0

0

0

0

0

0

1,124.1

May

Maximum

0

200

200

1,900

O

O

O

0

0

0

0

0

o

2OO

June

Minimum

0

0

0

0

o

0

0

0

0

0

0

0

o

0

July Aug.

Mean

0

20 5

ie!4

13 2

O

0

0

O

0

0

0

o

0

3.08

Sept.

Runoff in 

acre-feet

0

1,220

1,010

9 * 590

0

0

0

0

0

0

0

0

0

2,230

Peak discharge.- Nov. 20 (2:45 p.m.) 765 sec.-ft.; Nov. 23 (5:30 p.m.) 900 sec.-ft.; Dec. 25 

(about 1 p.m.) 375 see.-ft.; Dec. 26 (3 a.m.) 360 sec.-ft.

a Ho gage-height record; discharge computed on basis of records for upstream stations, 

e Stage-discharge relation uncertain; discharge computed on basis of records for upstream stations.

Labrea Creek near Sisquoc, Calif.

Location.- Water-stage recorder, lat. 34°51'00", long. 120°12"00", in SE* sec. 13, T 9 

TTTTRT 32 W 2,100 feet upstream from mouth and 5.5 miles east of Sisquoc, Santa'

Barbara County. Altitude of gage, about 550 feet. 

Drainage area.- 86.7 square miles. 

rfecoras available.- October 1943 to September 1947 

Extremes.- HO now during year.

1943-47: Maximum discharge, 1,600 second-feet Feb. 22, 1944 (gage height, 5 22

rtn^n; =? rating curve extended above 114 second-feet by logarithmic plotting; no flow during most oi each year. 

Remarks.- No flow during water year. No diversion. During calendar year 1946, total

second-foot-days was 71.1, maximum daily discharge was 37 second-feet, minimum daily

discharge was zero, mean annual discharge was 0.20 second-foot, and total runoff was 141 acre ie6t *
164 SANTA MARIA RIVER BASIN

Tepusquet Creek near Sisquoc, Calif.

Location - Water-stage recorder, lat. 34°52'05", long. 120°14'40", in NE£ sec. 9, T. 9 N. 

RT~32~~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 September 1947.

Extremes.- Maximum discharge during year, 1.8 second-feet Nov. 13 (gage height, 1.83 

reet); minimum daily, 0.1 second-foot for many days.

1943-47: 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. Ho diversion. ~

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

Ji

6

7

8

.9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30ai

Oot.

0.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.1

Nov.

0.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.3

.3

.7

.4

.3

.3

.3

.3

.4

.6

.4

.4

.5

.4

.3

.3

.3

.3

.3

.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

.4

.4

.5

.4

.4

.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

.4

.4

.4

.4

.4

.4

.4

.4

.4

Feb.

0.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April. .....................................

May. .......................................

July. ......................................

September. .................................

Hater year 1946-47 ......................

Mar.

0.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.6

.6

.6

.6

.6

Apr.

0.6

.6

.6

.6

.6

.6

.6

.7

.7

.6

.6

.6

.6

.6

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

Secondfoot-days

 10.1

175.9

3.0

110.6

May

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.4

.4

.4

.3

.3

.4

.3

.3

.3

.3

Maximum

.5

5.2

.1

.7

June

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

-

Minimum

^

0 4

'

.]

.]

July

0.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

Mean

5 .33

\. .48

> 24

.10

.30

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 

acre-feet

20

349

25

35

6.0

219
ARROYO GRANDE BASIN 165

Arroyo Grande at Arroyo Grande, Calif.

Location.- Water-stage recorder and brSad-crested weir, lat. 35°07'25", long. 120°34'20 

in fismo Grant at Arroyo Grande, San Luis Obispo County, 0.25 mile upstream from

Drainage area.- 106 square miles.

Records available.- December 1939 to September 1947.

Extremes.- Maximum discharge during year, 62 second feet Nov. 20 (gage height, 1.56 

reet); minimum daily, 0.1 second-foot on several days in July and August.

1939-47: Maximum discharge, 3,100 second-feet Mar. 4, 1941 (gage height, 8.30 

feet); minimum daily, 0.1 second-foot on several days in July and August 1947.

Remarks.- Records fair. Many small and intermittent diversions by pumping from stream 

for irrigation above station.

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.

5.2

5.6

4.0

4.0

3.4

3.9

3.0

1.5

.4

.6

.5

.6

1.7

3.0

2.0

2.4

1.7

1.9

3.6

5.2

4.6

3.9

4.2

3.6

3.2

6.0

6.8

5.8

4.4

3.8

3.9

Nov.

3.8

2.8

1.7

3.6

2.8

1.8

2.2

1.4

2.2

2.2

5.2

5.6

6.2

5.8

5.4

5.4

5.8

5.2

7.2

18

7.7

7.5

11

7.9

7.5

7.2

7.0

7.0

7.0

7.2

-

Dec.

.5

.5

.9

.9

.9

.3

.9

.9

.7

.5

.5

.8

.8

.5

.9

.9

.7

.7

.5

.O

7.5

8.1

8.3

8.5

9.3

9.8

11

10

10

10

9.8

Jan.

10

10

10

9.8

9.5

9.8

9.3

8.8

8.3

8.3

8.5

8.3

.7

.5

.5

.2

.5

.0

.9

.7

.7

.1

.1

.9

.2

8.8

8.5

11

11

10

9.8

Feb.

9.8

10

9.5

8.3

8.5

8.3

9.0

8.8

11

12

10

11

11

11

11

11

11

11

1O

10

9.3

9.8

10

7.7

6.8

7.0

5.8

5.4

_

_

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July...... .................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

5.5

7.O

9.5

11

10

10

10

10

10

9.5

8.3

8.3

7.8

6.0

5.5

7.8

6.5

6.8

7.O

8.1

7.9

8.1

8.5

7.0

5.9

5.1

7.2

8.8

9.0

9.8

9.5

Apr.

9.5

9.8

10

10

11

10

9.8

8.0

5.4

5.9

4.0

4.0

4.4

4.5

3.9

3.9

3.5

3.2

2.0

2.5

4.2

4.4

3.6

3.3

3.7

4.7

6.4

4.2

4.7

4.2

-

Secondfoot-days

105.4

254le

2,764.2

'66 7

264 5

251 '4

168 . 7

110.2

52 5

°8 9

29.0

45.0

1,758.2

May

2.9

2.9

1.8

2.6

1.9

1.5

1.2

2.2

3.2

4.5

6.2

3.9

3.0

3.5

1.9

3.0

2.9

4.2

3.5

3.8

*3.4

3.9

5.0

4.3

5.4

4.2

5.0

4.8

4.6

4.3

4.7

Maximum

6 . 8

18

11

130

11

12

11

11

6.2

5.4

1.9

3.4

2.8

18

June

5.4

2.2

2.6

2.4

2.7

2.1

2.3

3.8

3.5

2.7

2.4

2.3

2.1

2.0

3.6

3.3

1.8

.9

.5

1.9

1.4

2.0

1.2

1.5

1.2

1.1

.5

.4

.9

1.8

Minimum

0.4

1.4

6.8

.4

7.0

5 4

5.1

2.0

1 ,2

.4

.1

.1

.4

.1

July

1.1

.4

.5

1.4

1.2

1.7

1.9

1.7

1.4

.8

.6

.O

.3

.3

.2

.1

.1

.5

.2

1.1

.9

1.3

1.2

.6

.7

.7

1.0

.7

.3

.1

.9

Aug.

0.4

.1

.1

.1

.7

.2

.3

.2, ?

.2

.2

.3

.2

.2

.4

1.1

1.6

1.1

1.1

1.0

1.1

1.0

1.8

3 4

2.7

2.0

1.4

2.3

1.8

1.6

Mean

3 4o

5^71

8.21

7.57

8 . 60

9.45

5.62

3.55

2.03

. '.94 93

1.50

4.82

Sept.

1,5

1.3

.7

1.9

.7

1.0

2.0

2.1

.5

1.5

1.2

2.0

1.9

2.8

2.2

1.4

1.9

1.8

1.5

1.2

.3

.7

.7

.4

1.9

2.7

.3

1.2

1.5

1.7

Runoff in 

acre-feet

209

340

505

5,480

529

525

499

335

219

124

57

58

39

3,490

854211 O - 49 - 12
166 SAN LUIS OBISPO CREEK BASIN

Steiner Creek near San Luis Obispo, Calif.

Location.- Water-stage recorder and 90° V-notch weir, lat. 35°19', long. 120°41', in El 

Chorro Potrero cte San Luis Obispo Grant, 2 miles upstream from Brizziolari Creek and 

3 miles northwest of San Luis Obispo, San Luis Obispo County. Altitude of gage, about 

440 feet (from topographic map).

Drainage area.- 4.1 square miles.

Records available.- June 1942 to November 1947 (low-water records only, discontinued).

Extremes.- Minimum discharge observed during period June to November, 0.07 second-foot

1942-47: Minimum discharge, 0.07 second-foot Sept.'30, 1946, and June 23, 1947.

Remarks.- Records good except those for periods of indefinite stage-discharge relation 

and no gage-height record, which are poor. There was some release of water into 

creek from Cuesta tunnel.

Discharge, in second-feet, June to November 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

June

_

-

-

_

-

_

-

-

-

-

_

.

_

.

-

to. 10

-

_

_

-

_

-

t.07

_

-

.10

.10

.10

.10

.10

-

July

0.09

.10

.10

.10

.10

.10

.11

.11

.11

.11

.12

.13

.13

.13

.13

.13

.13

.12

.12

.11

* .12

.12

.11

.13

.12

.13

.13

.11

.11

.11

.13

Month

June 26-30. ................................

July .......................................

August .....................................

September ..................................

October. ................................

November 1-3 ...............................

The period

Aug.

0.16

.21

.21

.18

.20

.20

.21

.18

.20

.18

.20

.20

.27

.22

.21

.22

.19

.11

.22

.24

.21

.21

.20

.26

.26

.24

.24

.21

.21

e.21

e.20

Sept.

eO.18

.18

.21

.22

.24

.22

.22

a. 24

.25

.25

.24

.21

.21

.21

.18

.22

.28

.28

.25

e.50

.20

.18

.18

.21

.20

.23

.23

.22

.20

.19

Oct.

0.50

.14

.14

.It

[

I

.18

.15

.16

.16 .ie

.27

.22

.2C

.2C

.22

.23

.37

.33

.26

.23

.22

.23

.25

.2C

.19

.19

.20

1.01

.20

.22

.26

.26

Second- u<,.»im,,m foot-days «a*i"n«°

0.50 0.10

3.60 .13

6.46 .27

6.83 .50

7.71 1.01

-

Nov.

0.25

.26

.25

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

.

_

_

_

_

-

Minimum

0.10

.09

.11

.18

.14

-

Mean .

O.1O

.12

.21

23

'- 25

-

Runoff in 

acre-feet

1.0

7.1

12.8

13.5

15.3

1.5

51.2

t Result of discharge measurement.

a Ho gage-height record; discharge Interpolated.

e Stage-discharge relation indefinite; discharge interpolated.
SALINAS RIVER BASIN 167 

Salinas River near Pozo, Calif.

Location.- Water-stage recorder, lat. 35°18', long. 120°24', in SEtr sec. 18, T. 30 S., 

R. 15 ii. , 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 1947.

Extremes.- Maximum discharge during year, 966 second-feet Nov. 20 (gage height,.7.37 

reet); minimum, 0.1 second-foot Aug. 6.

1942-47: 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 Aug. 6, 1947.

Remarks.- Records fair. No storage or diversion above station. Water is stored in 

Salinas Reservoir below station.

Discharge, in seccnd-feet, water year October 1946 tc September 1947

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.

0.3

.3

.4

.5

.5

.6

.5

.6

.6

.6

.6

.7

.7

.7

1.1

1.1

.9

.9

.7

.9

.7

.7

.6

.7

.9

.9

.9

.9

1.1

1.1

Nov.

0.9

1.1

1.1

1.4

1.4

1.4

1.4

1.1

.9

.9

.7

2.2

.9

.7

.7

.6

.6

38

271

9.5

7.1

224

60

18

9.5

S.5

5.5

5.0

4.5

-

Dec.

4.5

4.1

4.1

4.1

8.4

31

15

10

8.2

7.1

6.5

5.5

5.0

4.5

4.5

4.1

3.7

3.7

3.2

3.2

3.2

3.2

3.7

5.0

12

59

45

27

20

16

Jan.

13

10

8.2

7.6

7.1

6.0

5.5

5.0

4.5

4.5

4.5

4.5

4.1

3.7

3.7

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

7.1

7.1

5.5

5.0

Feb.

4.5

4.5

4.1

3.7

3.2

3.2

2.9

5.0

5.0

4.1

4.1

4.1

3.7

3.7

4.1

4.1

3.7

3.7

3.7

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

May. .......................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

3.2

3.2

4.1

3.2

3.2

3.2

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

5.0

3.7

3.2

2.9

Apr.

2.9

2.5

2.9

2.9

2.9

2.9

2.5

2.5

2.5

2.5

2.5

2.5

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

1.9

Seccndfoot-days

338.2

3,516.2

11.2

1 , 580 . 4

May

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.6

1.4

1.4

1.4

1.6

1.6

1.6

1.6

1.1

1.1

1.1

1.1

1.1

1.4

1.6

1.4

1.4

1.6

1.9

1.4

1.1

1.4

1.1

Maximum

59

831

5.0

2.9

1.6

.5

.5

.5

271

June

1.1

1.1

1.1

1.1

1.1

1.4

1.6

1.4

1.4

1.1

.9

.9

.9

.9

- .9

.7

.6

.7

.9

.9

.9

.9

.7

.9

1.1

.7

.6

.6

.6

Minimum

3.2

.2

3.2

3.2

2.9

1.9

1.1

.2

.2

.3

.2

July

0.5

.5

.5

.4

.4

.5

.5

.5

.5

.5

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.3

.3

.3

.2

.2

Aug.

0.3

.3

.3

.4

.2

.2

.2

.2

.2

,2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.4

.4

.4

.5

.5

.5

Mean

10.9

9.63

5.14

3.74

3.13

2.39

1.52

.96

.43

.29

.37

4.33

Sept.

0.

.4

Runoff in 

acre-feet

44

1,340

671

6,970

316

208

192

142

94

57

26

18

22

3,130

Peak discharge.- Nov. 20 (4 a.m.) sec.-ft.; Nov. 23 (11 a.m.) 4O2 see.-ft.
168 SALINAS RIVER BASIN

Salinas Reservoir near Pozo, Calif.

Location.- Water-stage recorder, lat. 35°20', long. 120 0 30', in sec. 5, T. 30 S., R. 14 

E., at dam on Salinas River, 2 miles upstream from Pilitas Creek and 7.5 miles 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 1947.

Extremes.- Maximum contents during year, 13,900 acre-feet Apr. 5-8 (elevation, 1,282.19 

feet); minimum, 8,240 acre-feet Sept. 30.

1941-47: 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 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.

11,700

11,660

11,630

11,590

11,550

11,530

11,490

11,450

11,410

11,390

11,350

11,320

11,290

11,260

11,240

11,210

11,180

11,160

11,140

11,120

11,100

11,080

11,060

11,030

11,010

10,990

10,970

10,950

10,920

10,900

10,870

Nov.

10,850

10,830

10,810

10,790

10,770

10,750

10,730

10,710

10,690

10,670

10,670

10,660

10,700

10,710

10,700

10,710

10,710

10,710

10,970

11,740

11,770

11,830

12,330

12,460

12,500

12,530

12,550

12,560

12,560

12,570

-

Dec.

12,580

12,580

12,580

12,590

12,610

12,640

12,690

12,720

12,740

12,750

12,760

12,770

12,780

12,790

12,800

12,800

12,800

12,800

12,810

12,820

12,820

12,820

12,830

12,870

12,890

12,950

13,060

13,140

13,190

13,220

13,240

Jan.

13,270

13,280

13,290

13,310

13,320

13,340

13,340

13,360

13,360

13,360

13,380

13,380

13,390

13,390

13,400

13,400

13,400

13,410

13,420

13,420

13,420

13,430

13,440

13,440

13,440

13,450

13,460

13,500

13,500

13,510

13,520

Feb.

13,530

13,540

13,540

13,550

13,560

13,560

13,560

13,560

13,610

13,620

13,620

13,640

13,650

13,660

13,670

13,680

13,680

13,690

13,700

13,700

13,710

13,720

13,720

13,730

13,730

13,730

13,740

13,740

_

_

-

Mar.

13,740

13,750

13,770

13,780

13,780

13,780

13,780

13,780

13,790

13,800

13,800

13,800

13,800

13,800

13,800

13,800

13,800

13,800

13,800

13,800

13,800

13,810

13,820

13,820

13,820

13,810

13,840

13,860

13,880

13,880

 13,880

Apr.

13,880

13,880

13,890

13,890

13,900

13,900

13,900

13,900

13,890

13,880

13,880

13,880

13,870

13,860

13,840

13,840

13,830

13,820

13,820

13,800

13,800

13,790

13,780

13,780

13,780

13,780

13,780

13,770

13,760

13,760

-

May

13,750

13,740

13,720

13,720

13,700

13,680

13,680

13,660

13,650

13,630

13,620

13,600

13,600

13,580

13,580

13,560

13,540

13,540

13,520

13,510

13,500

13,480

13,460

13,450

13,450

13,440

13,420

13,410

13,400

13,380

13,380

June

13,360

13,360

13,340

13,320

13,310

13,300

13,290

13,290

13,270

13,260

13,240

13,220

13,210

13,190

13,170

13,150

13,140

13,120

13,110

13,090

13,080

13,060

13,040

13,020

13,000

12,980

12,940

12,800

12,670

12,540

July

12,320

12,070

11,810

11,640

11,490

11,350

11,200

11,050

10,940

10,910

10,870

10,830

10,800

10,750

10,670

10,580

10,490

10,300

10,050

9,790

9,590

9,510

9,490

9,470

9,450

9,430

9,420

9,400

9,380

9,350

9,330

Aug.

9,310

9,300

9,280

9,270

9,230

9,210

9,190

9,160

9,140

9,130

9,100

9,080

9,060

9,040

9,030

9,010

8,990

8,970

8,950

8,930

8,910

8,890

8,870

8,850

8,830

8,810

8,790

8,770

8,750

8,730

8,720

Sept.

8,710

8,690

8,670

8,650

8,630

8,610

8,590

8,580

8,570

8,550

8,530

8,520

8,500

8,490

8,480

8,450

8,440

8,420

8,400

8,390

8,370

8,360

8,340

8,330

8,310

8,290

8,280

8,270

8,250

8,240

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31... .............

Calendar year 1946...

Feb. 28................

Sept . 30 ................

Water year 1946-47...

Elevation 

(feet)

1,280.87

_

1 279 30

1,268.82

-

Contents 

(acre-feet)

10,870

13,240

-

8,240

-

Change in contents 

during month 

(acre-feet)

-870

+670

-370

+220

-480

-3,500
SALINAS RIVER BASIN 169

Salinas River above Pilitas Creek, near Santa Margarita, Calif.

Location.- Water-stage recorder and concrete control, lat. 35 0 21', long. 120°31', in 

fTEfsec. 6, 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 1947.

Extremes.- Maximum discharge during year, 118 second-feet (regulated) July 19, 20 (gage 

neignt, 1.59 feet); no flow Apr. 14 to June 27, July 27-31.

1942-47: Maximum discharge, 562 second-feet (regulated) Jan. 28, 1943 (gage height, 

2.49 feet); no flow at times during 1944, 1947.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Flow regulated by Salinas Reservoir (see p. 168). Small amount of water diverted to 

Camp San Luis Obispo and city of San Luis Obispo.

Rating table, water year 1946-47 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used June 27 to July 18)

0.4 0 0.8 7.2 1.2 43 

.5 .2 .9 13 1.3 59 

.6 1.1 1.0 20 1.4 76 

.7 3.3 1.1 30 1.6 120

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.

14 

12 

12 

12

11

11 

11 

11 

11 

11

11 

11 

10 

8.7 

6.2

6.2 

6.2 

6.2 

6.2 

6.2

6.2 

6.7 

6.7 

6.7 

6.7

6.7 

6.7 

6.7 

6.7 

6.7 

6.7

Nov.

6.7 

6.7 

6.7 

6.7 

7.2

7.2 

6.7 

7.2 

7.2 

7.7

7.7 

6.7 

2.0 

1.0 

.6

.4 

.3 

.3 

1.1 

5.0

1.1 

.9 

1.8 

1.1 

.8

a. 5 

a. 4 

a. 3 

a. 3 

a. 3

Dec.

aO.2 

a. 2 

.2 

.2 

.3

.4 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.6 

.8

.6 

.8 

.4 

.3 

.3 

.2

Jan.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.5 

.3 

.2 

.2

Feb.

0.2 

.2 

.3 

.4 

.2

.2 

.2 

.2 

.4 

.3

.2 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.1

.1

.1 

.2 

.2

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apri

Man

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ...................................'

lendar year 1946 

ary

1. .....................................

ember ..................................

ter year 1946-47 ......................

Mar.

0.1 

.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 

.2 

.9 

.4 

.3 

.2

Apr.

0.2 

.2 

.3 

.2 

.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

Secondfoot-days

267.1 

102.6 

9.1

2,962.4

6.7 

6.1 

7.2 

2.0 

0 

176.7 

1,254.1 

4.0 

7.9

1,843.5

May 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 

5.7 

53 

59 

59

Maximum Minimum

14 6.2 

7.7 .3 

.8 .2

61 .2

.5 .2 

.4 .1 

.9 .1 

.3 0 

0 0 

59 0 

118 0 

.2 .1 

.4 .1

118 0

July

84 

110 

113 

76 

59

59 

59 

59 

48 

10

10 

10 

10 

14

31

33 

33 

76 

118 

118

90 

33 

.7 

.2 

.1

.1 

0 

0 

0 

0 

0

Aug.

aO.l 

a.l 

a.l 

a. 2 

.2

.1 

.1 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2 

.1

Sept.

0.1 

.1 

.1 

.1 

.2

.3 

.2 

.2 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.3 

.4 

.4 

.3

.3 

.3 

.3 

.4 

.4

.3 

.3 

.3 

.3 

.4

Moan Runoff in Mean acre-feet

8.62 o30 

3.42 204 

.29 18

8.12 5,870

.22 13 

.22 12 

.23 14 

.07 4.0 

0 0 

5.89 350 

40.5 2,490 

.13 7.9 

.26 16

5.05 3,660

a No gage-height record; discharge computed on basis of comparison with records for station near 

Santa Margarita.
170 SALINAS RIVER BASIN

Sallnas River near Santa Margarita, Calif.

Location.- Water-stage recorder, lat. 35°24'20", long. 120°34'05", in Nj sec. 15, T. 29 

S., R. 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 1947.

Average discharge.- 15 years (1932-47), 47.1 second-feet.

Extremes.- Maximum discharge during year, 354 second-feet Nov. 20 (gage height, 7.28 

feet); no flow during several months.

1P32-47: 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. Regulation by Salinas Reservoir (see p. 168). Small amount of 

water diverted to Camp San Luis Obispo and city of San Luis Obispo.

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.

14 

10 

11 

11 

10

10 

10 

10 

10 

10

10 

10 

10 

9.6 

6.7

6.7 

6.4 

6.4 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

6.0 

6. 

6. 

6. 

6. 

6.

Nov.

6.7

6.7 

6.7

6.7 

7.0 

7.4 

7.4

7.7

8.0 

3.9

1.5 

1.4 

3.1 

62

6.7 

4.0 

18 

6.4 

3.4

2.5

2.0 

1.9 

1.7 

1.7

Dec.

1.7

3.2 

3.2

2.0

1.6

1.4

1.4 

1.4

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.7 

4.0

3.0 

6.0 

4.2 

2.7 

2.2 

1.9

Jan.

1.9

1.5 

1.5

1.5

1.4

1.4 

1.2

1.5 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.4 

1.4 

2.7 

2.7 

1.9 

1.6

Feb.

1.6 

1.5

1.5 

1.7

1.6 

1.5

2.5

2.4

2.5 

2.0

1.7 

1.7 

1.6 

1.6

1.6 

1.5 

1.4 

1.4 

1.4

1.2 

1.4 

1.2

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

her. ...................................

mber. ..................................

lendar year 1946 

ary . .

h. .....................................

1. .....................................

ember ..................................

ter year 1946-47 ......................

Mar.

1.2 

1.5

2.4

r.s

1.2

1.2

1.1

1.0 

1.1 

1.1

1.1 

1.1 

1.1 

1.2

1.2 

1.2 

al.2 

al.l 

1.1

1.1 

1.2 

3.6 

2.7 

2.0 

1.6

Apr.

1.4 

1.4

1.4

1.2

1.2

1.0

.8 

.8 

.6 

.6 

.5

.5 

.4 

.4 

.4 

.4

.5 

.6 

.5 

.5 

.5

.7 

.6 

.5 

.5 

.3

Secondfoot-days

253.4 

217.9 

61.5

4,078.7

46.0 

49.1 

43.7 

23.6 

1.6 

136 

1,238.4 

0 

0

2,071.2

May

0.2 

.2 

.1 

.1 

.1

.1 

.1

.1 

.1

.1

.1 

.1 

.1 

0

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0

o

0 

0 

0

Maximum

14 

62 

6.0

308

2.7 

3.6 

3.6

1.7 

0.2 

60 

118 

0 

0

118

June

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0

o 

o 

o

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

18 

58

60

Minimum

6.0 

1.4 

1.2

1.0

1.1 

1.2 

1.0 

.3 

0 

0 

0 

0 

0

0

July

75 

118 

116 

89

60

57 

55 

53 

52 

14

10 

10 

9.7 

9.5 

24

27 

28 

51 

113 

116

97 

45 

5.4 

2.4 

1.4

0 

0 

0 

0 

0 

0

Aug.

Mean

8.17 

7.26 

1.98

11.2

1.48 

1.75 

1.41 

.79 

.05 

4.53 

39.9 

0 

0

5.67

Sept.

Runoff in 

acre- feet

503 

432 

122

8,090

91 

97 

87 

47 

3.2 

270 

2,460 

0 

0

4,110

a No gage-height record; discharge interpolated.
SALINAS RIVER BASIN 

Salinas River at Paso Robles, Calif.

171

Location.- Wire-weight gage, lat. 35°37'40", long. 1200 41'05", at bridge on State Highway 41 in Paso 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 September 1947.

Extremes.- Maximum discharge observed during year, 1,080 second-feet Nov. 23 (gage 

height, 8.30 feet); no flow during several months.

1939-47: 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 below 10 second-feet, which are poor. Gage read 

twice daily with additional readings in periods of high water. Small diversion above 

station. Plow regulated by Salinas Reservoir (see p. 168).

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. Nov.

0

O

o

0

0

0

o

0

o

0

o

o

0

o

o

0

0

o

o

229

96

96

474

218

105

81

61

47

47

41

-

Dec.

33

31

29

26

24

28

57

49

43

41

41

37

35

31

26

25

22

21

2O

19

19

18

18

IS

18

52

89

89

86

78

65

Jan.

57

55

55

50

40

38

36

34

32

31

d30

d28

d26

d24

22

22

22

21

21

21

21

21

21

21

22

22

22

23

24

23

22

Feb.

20

IS

18

16

17

18

17

21

24

30

36

36

53

67

56

50

46

44

40

37

36

34

33

31

28

26

26

26

_

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar vaar 1 94fi

Janu 

Febr

ary. ......... ..........................

uarv- . ..._..

March. .....................................

April. .....................................

May........................................

June .......................................

July.............. .........................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

26

26

28

32

33

33

3O

29

27

28

29

26

23

19

19

18

16

14

14

13

13

13

13

1O

8.3

13

13

16

21

23

25

Apr.

26

24

24

26

26

26

23

20

19

16

15

14

12

12

11

9.8

8.8

8.3

. 6.2

5.2

5.2

5.2

4.8

4.8

4.8

4.8

4.8

4.5

2.4

1.8

-

Secondfoot-days

0

1,495

1,188

12,377.1

907 

904

651.3

375.4

8.3

0

O

O

0

5,529.0

May

1.8

0

0

O

o

0

0

.5

.6

.6

.4

.4

.5

.5

.5

.5

.4

.3

.4

.4

.2

0

0

0

.1

.1

.1

o

0

0

0

Maximum

o

474

89

1,680

57 

67

33

26

1.8

0

0

O

0

474

June

Minimum

o .

o

18

0

21

IS

8.

1.

0

0

0

0

0

o

July Aug.

Mean

0

49.8

38.3

33.9

29.3 

32.3

3 21.0

3 12.5

.27

O

O

0

o

15.1

Sept.

Runoff in 

acre-feet

0

2,970

2,360

24,560

1,800 

1,790

1,290

745

16

0

O

O

0

10,970

d Doubtful gage-height records discharge interpolated.
172 SALINAS RIVER BASIN

Salinas River near Spreckles, Calif.

Location.- Water-stage recorder and wire-weight gage, lat. 36°37'50", long. 121°40'40", 

in El Toro Grant, at bridge on Salinas-Monterey highway, 0.5 mile upstream from Toro 

Creek, 2 miles west of Spreckels, Monterey County, and 4 miles south of Salinas. 

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 1947.

Average discharge.- 17 years (1930-47), 627 second-feet.

Extremes.- Maximum discharge observed during year, 268 second-feet Mar. 10 (gage height, 

3.88 feet); minimum observed, 0.5 second-foot (field estimate) at various times May 

to August.

1929-47: 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. Small diversions above station for irrigation.

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.

3.5

3.9

4.1

4.3

4.9

5.1

6.5

5.8

6.2

6.5

7.0

7.8

8.6

10

10

11

11

11

12

11

14

15

16

16

16

18

16

15

16

18

18

Nov.

30

14

13

14

15

13

14

14

18

19

19

20

21

22

23

26

26

25

35

25

22

21

21

16

18

16

15

13

13

12

-

Dec.

12

11

11

11

10

14

alO,

8.6

8.9

9.8

10

10

10

9.5

9.5

8.6

11

13

9.5

7.8

7.5

7.5

6.5

6.8

7.8

11

10

8.0

5.3

6.2

6.2

Jan.

5.8

2.8

3.7

5.1

4.9

4.5

3.7

3.7

4.1

4.9

4.7

3.7

3.0

2.8

3.0

3.0

3.2

3.5

4.3

5.1

7.5

9.5

6.5

3.9

4.1

2.8

2.0

1.5

1.7

2.6

3.0

Feb.

3.0

2.4

2.0

1.5

1.0

1.7

2.4

3.5

4.9

4.3

4.7

4.9

4.1

4.3

31

116

228

223

181

150

89

58

40

50

46

35

22

_

-

Month

October ....................................

November . ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March...... ................................

April ......................................

May........................................

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

10

9.5

4.3

1.3

1.0

3.4

5.3

9.2

49

228

72

50

30

17

11

6.0

3.0

2.4

1.6

1.1

1.7

1.6

2.0

2.3

2.4

1.9

2.2

2.6

2.3

2.0

1.9

Apr.

2.0

2.9

4.5

6.8

9.2

11.0

7.5

1.6

1.6

2.0

1.8

1.8

1.6

1.6

2.2

1.8

2.2

2.3

1.6

1.6

2.2

2.2

1.6

1.5

1.6

2.2

2.6

.6

1.0

1.5

Secondfoot-days

328.2

573

288.0

32,597.9

124.6

1,320.2

538.0

84.6

31.0

24.0

15.5

30.0

155.1

3,512.2

May

. el.o

Maximum

18

35

14

2,480

9.5

228

228

11

_

2.3

7.5

228

June

.

, eO.8

-

Minimum

3.

12

5.

.

1.

l.C

l.C

.

_

_

_

2.;

-

July

. eO.5

Aug.

. eO.5

1.0

1.2

1.7

1.8

1.8

2.0

1.8

2.0

2.2

2.2

2.3

Mean

5 10.6

19.1

5 9.29

3 89.3

5 4.02

) 47.2

) 17.4

> 2.82

1.0

.8

.5

.97

> 5.17

9.62

Sept.

2.2

2.3

2.3

4.3

4.7

4.7

4.9

4.9

5.1

5.3

5.1

4.9

4.5

5.5

5.3

5.1

5.3

5.3

5.5

5.5

5.8

5.5

5.5

5.8

6.0

5.8

6.5

6.8

7.2

7.5

Runoff in 

acre-feet

651

1,140

571

64,660

247

2,620

1,070

168

61

48

31

60

308

6,980

a No gage-height record, discharge Interpolated.

e Stage-discharge relation Indefinite; discharge computed on basis of gage heights and 7 field 

estimates of discharge.
SALINAS RIVER BASIN 173

Toro Creek near Pozo, Calif.

i

Location.- Water-stage recorder and 90° V-notch weir, lat. 35°20', long. 120°26', in 

sec. 12, 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 1942 to October 1947 (low-water records only).

Extremes.- Minimum discharge during period June to October 1947, 0.06 secund-foot July 21. 

1932-47: Minimum discharge, that of July 21, 1947.

Remarks.- Records good except those for periods of no gage-height record, which are 

iair. Flow partly regulated by swimming pool above station.

Discharge, in second-feet, June to November 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

June

_

.

-

_

-

_

-

-

.

-

_

_

-

..

-

tO. 24

-

_

_

-

_

_

t.14

_

-

.

.16

_

-

-

-

July

0.18

.16

.18

.15

.13

.12

.14

.16

.15

.14

.11

.18

.15

.15

.15

.15

.14

.11

.13

.14

.11

.10

.13

.12

.13

.14

.13

.13

.11

.18

.18

Month

June .......................................

August .....................................

September. . ................................

October ....................................

The period. ..............................

Aug.

0.15

.18

.18

.14

.10

.11

.11

.11

.14

.13

.12

.11

.11

.12

.11

.13

.13

.13

.13

.16

.15

.15

.13

.14

.15

.18

.19

.19

.18

.16

.11

Sept.

0.15

.13

.12

.10

.11

.13

.14

.15

.16

.14

.14

a. 14

a. 13

a. 13

a. 12

.12

.13

.20

a. 18

a. 18

a. 16

.16

.14

.13

.13

.13

.14

.14

.14

.16

-

Oct.

0.18

.If

.IS

.U

)

.15

.18

.2( .2'

.2C

)

)

a. 20

a. 20

a.2<

a.2(

.2<

)

)

)

.16

.22

.2<

.1'.

.2C

)

)

.22

.22

,2J

.22

.22

.22

.22

.2C

.2!

.2E

.2E

)

.25

££&. 

4.38 0.18

4.33 .19

4.23 .20

6.31 .25

-

Nov.

0.26

.26

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

-

Minimum

0.10

.10

.10

.15

-

Mean

0.14

.14

.14

.20

-

Runoff in 

acre-feet

8.69

8.59

8.39

12.5

38.2

t Result of discharge measurement.

a No gage-height record; discharge interpolated.

Santa Margarita Creek near Santa Margarita, Calif.

Location.- Water-stage recorder and 90° V-notch weir, lat. 35°23', long. 120°39' , in 

aanta Margarita Grant, immediately upstream from Tassajera Creek and 2.5 miles southwest of Santa Margarita, San Luis Oblspo County. Altitude of gage, about 1,050 feet 

( from topographic map ) .

Drainage area.- 2.4 square miles.

Records available.- June 1942 to October 1947 (low-water records only, discontinued).

Extremes.- 1942-47: No flow part of each season except 1942.

Remarks.- No flow during season June to October, 1947. No storage or diversion.
174 SALINAS RIVER BASIN

Tassajera Creek near Santa Margarita, Calif.

Location.- Water-stage recorder and 90° V-notch weir, lat. 35°23", long. 120°39 ! , in Santa 

Margarita Grant, 300 feet upstream from mouth and 2.5 miles southwest of Santa Margarita, 

San Luis Obispo County. Altitude of gage, about 1,060 feet (from topographic map).

Drainage area.- 4.4 square miles.

Kecords available.- June 1942 to October 1947 (low-water records only).

Extremes.- 1942-47: No flow part of each season except 1942.

Kemarlcs~ Ho flow during season June to October 1947. Ho storage or large diversion.

Nacimiento River near San Miguel, Calif.

Location.- Water-stage recorder and concrete control, lat. 35°47'00", long. 120°47'24", 

in SKi 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 1947.

Extremes.- Maximum discharge during year, 9,600 second-feet Nov. 23 (gage height, 5.58 

reet), from rating curve extended above 520 second-feet; no flow Oct. 1 to Hov. 19, 

June 7 to Sept. 30.

1939-47: Maximum discharge, 50,800 second-feet Jan. 21, 1943 (gage height, 10.45 

feet), from rating curve extended above 17,000 second-feet by 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 1946 to September 1947

Day

1

2

2

4

!b

6

7

8

10

11

16

17

18

19

20

21

24

26

28

29

30

Oct. Nov.

0

0

c

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2,810

440

219

5,880

1,380

464

228

171

142

115

98

-

Dec.

84

75

66

61

58

66

193

142

104

90

80

75

72

66

61

58

51

47

42

40

42

45

42

59

84

182

321

274

171

124

104

Jan.

94

84

75

69

66

64

58

56

53

51

47

45

42

38

36

36

36

36

32

30

30

30

29

29

27

27

27

56

146

104

77

Feb.

66

58

51

45

42

42

42

40

49

663

316

287

1,860

791

a450

a310

a240

a!80

a!70

a 160

146

133

115

108

101

94

90

87

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April ......................................

May. .......................................

September. .................................

Water year 1945-47 ......................

Mar.

84

101

166

280

280

215

176

156

142

128

112

108

101

94

87

80

77

72

66

64

61

58

56

53

49

49

47

64

124

171

254

Apr.

215

171

156

146

138

115

104

90

84

77

72

64

61

56

49

45

38

36

36

36

34

34

32

32

32

30

29

27

27

27

-

Secondfoot days

2,979

39,328.9

2 093

o

0

29,245.3

May

27

26

24

21

18

15

14

14

11

10

9.5

9.5

9.5

8.7

8.7

8.7

8.0

6.8

5.8

4.5

4.1

3.4

2.8

1.8

.9

.7

2.0

1.9

1.8

1.4

1.0

HaximuB

321

5,880

280

215

0

5,880

June

1.2

1.0

.6

.5

.3

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

 0

0

0

0

0

0

0

0

0

0

0

-

Minimum

40

0

.7

0

0

July Aug.

Mean

96.1

108

52.6

0

80.1

Sept.

Runoff in 

acre-feet

5,910

78,010

0

58,010

a No gage-height record; discharge computed on basis of normal recession graph.
SALINAS RIVER BASIN 175

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 Coutny, 1.1 miles downstream from 

Copperhead Creek and 15 miles west of Bnadley. Altitade of gage, about 720 feet 

(from topographic map).

Drainage area.- 282 square miles.

Records available.- April to September 1922, December 1929 to September 1947.

Average discharge.- 17 years (1930-47), 101 second-feet.

Extremes.- Maximum discharge during year, 909 second-feet Nov. 23 (gage height, 2.87 

feet); no flow Oct. 1 to Nov. 13, May 28 to Sept. 30.

1929-47: 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 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

28

29

30

31

Oct. Nov.

0

0

0

o

o

0

0

0

0

0

o

0

.2

.3

.3

.3

.4

.4

1.8

55

38

9.2

391

245

127

83

55

39

336

d32

-

Dec.

d30

d28

d26

d23

21

25

32

34

d32

d30

d28

25

24

24

23

23

23

22

21

20

20

20

19

22

28

3O

29

30

29

27

25

Jan.

25

24

23

22

21

21

21

20

19

19

19

19

19

18

17

17

17

17

17

17

17

17

17

17

17

17

17

21

28

30

26

Feb.

26

23

22

22

22

21

21

21

27

34

45

48

177

118

94

83

72

69

63

58

54

51

50

47

45

43

39

37

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

Janu 

Febr

Apri 

May

Jnly.. .....................................

September. .................................

Water year 1946-47 ......................

Mar.

36

39

44

50

48

48

52

50

43

43

40

40

39

38

36

36

34

33

33

32

31

31

29

29

27

26

26

30

37

39

43

Apr.

43

43

43

42

42

42

39

a36

a33

29

25

27

28

25

24

25

24

21

20

19

18

17

16

15

15

14

14

14

13

12

Seoondfcot-days

O

1,113.9

793

9,508.4

616 

1,432 

1,162

778 

108.5

O

O

0

O

6,OO3.4

May

10

9.8

9.2

8.6

7.7

7.3

7.3

6.4

6.O

5.6

5.2

4.3

4.0

3.5

3.2

2.6

1.8

1.5

1.0

.8

.7

.7

.5

.3

.2

.2

.1

O

0

0

O

Maximum

0

391

34

391

30 

177 

52

43 

10

0

O

0

0

391

June

Minimum

Cc

IE

C

1" 

2] 

26

12 

C

C

1

C

C

c

July Aug.

Mean

0

37.1

25.6

26.1

19.9 

51.1 

37.5

25.9 

3.50

O

O

O

) 0

) 16.4

Sept.

Runoff in 

acre-feet

o

2,210

1,570

18,870

1,220 

2,840 

2,300

1,540

215

0

O

0

o

11,900

a Ho gage-height record; discharge interpolated.

d Doubtful gage-height record; discharge interpolated.
176 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. b E., 1.5 miles downstream from Vaquero Creek and IP 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 1947.

Average discharge.- 45 years (1902-47), 178 second-feet.

Extremes.- Maximum discharge during year, 3,480 second-feet Nov. 20 (gage height, 7.55

 i'eet); no flow Oct. 1-16, July 11 to Sept. 30.

1901-47: 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 except those for June 28 to July 10, which are poor. No storage 

or large diversion above station.

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

2C

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

.3

1.8

E.5

3.4

3.8

3.6

3.4

3.6

3.E

3.0

3.0

3.6

3.8

3.8

4.4

5.E

Nov.

5.2

5.5

5.8

5.8

3.8

5.8

5.8

5.5

5.5

5.8

6.0

6.6

8.3

9.0

IE

10

9.3

9.0

E31

1,080

151

146

1,530

408

E04

143

112

92

8E

73

-

Dec.

65

60

57

54

51

66

97

74

65

60

57

55

.5E

50

48

46

44

42

41

40

39

38

37

40

56

5E

71

64

56

52

51

Jan.

49

46

44

43

4E

41

40

38

38

37

37

36

36

35

35

34

33

33

3E

3E

32

32

31

31

30

30

30

50

74

63

45

Feb.

4E

40

38

38

36

35

35

34

41

E21

112

455

541

E70

EOO

166

148

130

119

109

101

95

89

83

79

74

71

67

_

_

-

Month

October ....................................

November. ............................. ....

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March .... ........... ....

May*1. .....................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

65

100

100

1E7

115

105

96

91

86

84

88

79

74

72

68

66

64

62

59

58

57

55

53

52

51

48

49

130

118

130

1E5

Apr.

109

100

105

119

IDE

95

89

86

8E

77

7E

67

63

59

56

53

50

49

48

46

44

45

44

4E

41

40

39

38

36

36

Secondfoot-days

52.4

4,376.7

1,680

E4,885.1

1,199

3,469

2 5E7

1.93E

637

234 - 7

4.7

0

0

16, HE. 5

May

34

3E

E9

E9

E7

E6

26

E6

E7

25

E3

E3

E3

E3

EE

El

19

18

17

16

14

13

13

13

13

IE

14

16

16

14

13

Maximum

5.E

1,530

97

1,530

74

541

130

119 

34

16

1.0

0

0

1,530

June

14

16

14

13

13

13

14

13

14

13

12

10

8.8

7.9

6.7

6.4

5.6

4.6

4.1

3.9

3.3

3.5

3.5

3.E

E.8

2.4

3.0

E.5

E.O

1.5

Minimum

0

3.!

37

0

30

34

48

36 

IE

l.E

0

0

0

0

July

1.0

.8

.7

.6

.5

.4

.3

.2

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

1.69

) 146

54. E

68.2

38.7

1E4

81.5

64.4 

20.5

7.82

.15

0

0

44.1

Sept.

Runoff in 

acre-feet

104

8,680

3,330

49,360

2,380

6,880

5,010

3,830 

1,260

466

9.3

0

0

31,950

Peak discharge.- Nov. 20 (E a.m.) 3,480 sec.-ft.; Nov. 23 (7:30 a.m.) 3,370 see.-ft.; Feb. IE 

(9:20 p.m.) 1,090 see.-ft.

Note.- Stage-discharge relation Indefinite June E8 to Sept. 30; discharge Interpolated.
PAJARO RIVER BASIN 177

Pajaro River near Chittenden, Calif.

Location - Wire-weight gage, lat. 36°54'00", long. 121°35'50", at State Highway bridge, 

u.t> mile downstream from Pescadero Creek, 1 mile southeast of Chittenden, and 2. 5 

miles downstream from San Benito River. Datum of gage, 82.06 feet above mean sea 

level (levels by Corps of Eniineers).

Drainage area.- 1,188 square miles.

Records available.- December 1939 to September 1947.

Extremes.- Maximum discharge observed during year, 896 second-feet Nov. 23 (gage height, 

1U.65 feet); minimum daily, 1.1 second-feet Aug. 13.

1939-47: Maximum discharge, 11,100 second-feet Apr. 4 or 5, 1941 (gage height, 

26.2 feet, from floodraarks); minimum daily, that of Aug. 13, 1947.

Flood in February 1938 reached a stage of 31.3 feet, from floodmarks.

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

Gage read twice daily with additional readings in periods of high water. Weekly recorder graph available Dec. 20 to June 11, June 21 to Sept. 23. 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 1946 to September 1947

Day

1

Z

S

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.0

5.4

5.8

5.4

4.9

5.6

5.2

4.9

4.9

5.2

4.9

4.9

4.9

5.2

5.2

6.0

6.5

6.3

5.2

6.3

5.8

5.4

5.8

5.8

5.8

5.4

6.3

5.4

6.5

5.8

5.4

Nov.

a6.0

a6.6

a7.2

a7.8

8.4

8.4

6.5

5.8

5.6

5.4

6.0

8.4

9.0

7.4

5.6

7.0

7.0

8.4

14

44

58

52

446

220

186

50

49

44

39

38

-

Dec.

36

32

30

29

34

254

76

68

46

29

26

26

25

26

26

24

24

24

23

22

22

22

22

24

35

37

40

37

30

28

26

Jan.

26

24

24

24

24

24

24

24

24

24

24

24

24

24

23

22

22

23

24

24

24

25

25

25

26

25

24

29

30

29

27

Feb.

27

26

26

26

26

26

26

24

26

32

33

50

388

214

136

101

88

81

69

62

56

51

46

44

43

42

39

37

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

April. ......................................

May........................................

September .".................................

Water year 1946-47 ......................

Mar.

36

44

85

323

292

180

136

119

106

179

366

246

206

179

160

144

131

116

105

96

88

82

73

66

61

58

55

54

62

63

78

Apr.

68

59

58

55

49

45

43

42

39

37

35

32

29

27

26

24

23

20

19

18

18

18

18

18

17

17

14

15

15

12

Seccndf cot-days

172.1

1,203

13,891.2

81.0

10,832.1

May

14

14

14

14

13

13

12

12

11

11

11

11

10

10

8.5

8.2

6.9

6.2

5.9

5.9

5.3

4.8

4.4

4.1

5.0

5.7

6.6

6.4

6.1

5.8

5.8

Maximum

254

446

3 ?

3.9

446

June

6.0

5.9

5.2

5.3

5.8

4.9

4.8

4.7

4.6

4.6

4.0

2.9

3.2

3.1

3.9

3.2

2.6

2.3

2.2

1.8

1.6

1.8

2.0

2.4

2.6

2.6

2.1

2.0

2.4

2.4

Minimum

22

2.6

1.2

1.1

July

2.1

2.2

1.8

2.2

1.9

2.0

2.5

2.0

1.9

1.8

2.0

2.1

2.0

2.2

2.0

1.6

1.8

1.7

1.7

2.0

2.0

2.5

2.4

2.2

2.0

2.3

2.7

2.5

1.9

1.7

1.8

Aug.

1.9

2.0

1.8

1.8

1.5

1.5

1.4

1.2

1.2

1.2

1.2

1.2

1.1

1.5

2.9

3.0

3.2

2.8

2.8

2.4

2.0

1.8

2.3

2.2

2.2

2.8

2.6

2.5

2.5

2.3

1.7

Mean

38.8

38.1

2.70

29,7

Sept.

2.0

1.6

1.5

1.5

1.4

1.2

1.4

1.9

2.3

2.4

2.3

2.2

2.5

2.8

3.1

3.5

3.8

3.8

3.6

3.6

3.9

3.4

3.3

3.2

3.2

3.2

2.7

3.0

3.3

3.4

Runoff in 

acre-feet

2,390

27,560

161

21,480

a Ho gage-height record; discharge Interpolated.
178 PAJARO RIVER BASIN

Pacheco Creek near Dunneville, Calif.

Location - Staff gage, lat. 36°58'50", long. 121°22'50", in Ausaymas Y San Felipe Grant, 

at private road bridge, 3.3 miles northeast of Dunneville, Santa Clara County. Altitude of gage, about 240 feet (from topographic map).

Drainage area.- 146 square miles.

Records available.- January 1940 to September 1947.

Extremes.- Maximum discharge during year, 890 second-feet Nov. 23 (gage height, 4.3 

reetf; no flow at times.

1940-47: Maximum discharge, 7,200 second-feet Feb. 2, 1945 (gage height, 15.8 

feetj from floodmarks), by slope-area method; no flow at times in 1940, 1943-47.

Remarks.- Records fair. 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.

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.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.7

3.4

3.4

3.4

3.9

3.9

3.9

3.6

3.2

2.7

2.5

2.2

Nov.

2.2

2.3

2.0

2.0

1.7

1.1

1.0

1.2

1.4

1.5

1.8

1.4

1.1

1.0

.9

.9

.7

.5

1.5

59

36

46

558

95

40

20

12

9.1

7.4

3.4

-

Dec.

2.5

1.8

1.7

1.4

1.4

1.2

2.0

3.2

3.4

3.6

3.2

2.5

2.2

1.8

1.8

1.7

1.7

1.7

1.7

1.7

1.5

1.5

1.5

1.5

1.2

1.1

1.1

2.3

6.3

6.0

5.3

Jan.

4.4

3.4

2.9

2.5

2.2

1.8

1.7

1.4

1.2

1.4

1.1

1.1

^ c

. s

.7

 5

.5

.5

.5

.5

.3

.3

.3

.2

.2

.2

.2

.2

.1

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

16

15

13

12

6.3

5.6

5.3

4.7

4.4

3.4

2.7

2.3

2.2

2.2

2.0

1.7

-

.,

-

Month

October ....................................

November. ..................................

December . ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

Auguat .....................................

September. .................................

Water year 1946-47 ......................

Mar.

1.7

1.7

11

254

78

43

40

38

38

334

319

72

38

27

18

12

9.6

8.2

5.3

4.7

3.2

2.7

2.5

2.2

2.0

2.2

2.0

2.2

1.8

1.7

1.4

Apr.

1.4

1.2

.9

.9

.6

.4

.3

.2

.2

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

»

-

Seccndfoot-days

38.8

912.1

71.5

2,955.9

32.2

98.8

1,377.1

6.4

72.0

45.5

0

0

0

2,654.4

Hay

0

0

0

0

0

0

0

0

2.7

3.2

2.7

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.7

2.7

3.2

3.2

3.2

3.6

3.6

4.2

4.4

5.0

5.0

4.2

Maximum

3.9

558

6.3

558

4.4

16

334

1.4

5.0

4.2

0

0

0

558

June

4.2

3.9

3.4

3.4

2.9

2.9

2.9

2.5

2.3

2.2

2.2

1.8

1.8

1.5

1.5

1.2

1.2

1.0

1.0

.9

.8

0

0

0

0

0

0

0

0

-

-

Minimum

0

.5

1.1

0

0

0

1.4

0

0

0

0

0

0

0

July Aug.

Mean

1.25

30.4

2.31

8.10

1.04

3.53

44.4

.21

2.32

1.52

0

0

0

7.27

Sept.

Runoff in 

acre-feet

77

1,810

142

5,860

64

196

2,730

13

143

90

0

0

0

5,260
PAJARO RIVER BASIN 

Uvas Creek near Morgan Hill, Calif.

179

Location.- Water-stage recorder, lat. 37°04"00", long. 121°41"30", in Las Uvas Grant,

5UU reet 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 1947.

Average discharge.- 16 years, 37.0 second-feet.

Extremes.- Maximum discharge during year, 1,700 second-feet Nov. 22 (gage height, 7.53 

reet); minimum, 0.1 second-foot Oct. 10-14, 16, 17, Sept. 27-30.

1930-47: 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. 

Uvas i)am for municipal supply of Gilroy.

Water diverted at

Rating table, water year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Backwater corrections applied Apr. 2-6, 21, 22, Hay 9-15)

2.0 0.0 2.6 14

2.1 .4 2.7 20

2.2 1.4 2.8 27

2.3 3.0 2.9 37

2.4 5.6 3.0 48

2.5 9.1 3.2 73

3.4 105

3.6 142

4.0 234

4.3 316

4.6 410

Discharge, in second-fset, water year Ootober 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.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Nov.

0.2

.2

.2

.3

.3

.3

.4

.4

.4

.4

.4

.5

.6

.8

1.1

1.1

1.1

1.1

182

58

12

160

392

44

22

16

13

11

9.1

8.3

-

Dec.

7.1

6.5

6.2

5.9

9.7

55

31

20

15

13

12

11

9.5

9.1

8.7

8.3

7.5

7.5

7.5

7.1

6.8

6.5

6.2

12

25

17

19

14

13

11

10

Jan.

9.5

8.7

8.7

8.3

7.9

7.5

7.5

7.1

7.1

6.8

6.8

6.8

6.5

6.5

6.2

5.6

5.6

5.6

5.6

5.3

5.3

5.0

4.7

4.4

4.2

4.2

4.2

28

13

9.1

8.3

Feb.

7.1

6.8

6.5

6.2

6.2

5.9

5.9

5.9

47

47

25

364

156

79

56

50

49

39

35

31

27

24

22

20

19

18

17

16

_

-

-

Month

October ....................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March. .....................................

April .........................:............

May. .......................................

June .......................................

July.. .....................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

. 22

64

153

174

95

69

56

48

42

86

68

56

48

45

40

36

33

30

27

25

24

22

21

20

18

18

18

34

25

55

36

 Apr.

31

28

27

24

22

21

20

L8

L8

16

15

L5

L4

L3

12

11

LI

LI

LI

11

11

]

]

]

Secondfoot days

5.5

937.2

398.1

5,020.6

230.0

1,191.5

1,508

445.6

164.4

83.5

34.9

13.6

6.9

5,019.2

LI

LO

LO

9.9

9.5

9.1

9.1

8.7

8.3

-

May

7.9

7.1

6.8

6.5

6.2

5.9

5.9

6.2

5.6

5.6

5.6

5.6

5.6

5.6

5.3

5.3

5.0

5.0

4.4

4.2

4.2

4.0

4.2

4.2

4.0

4.0

6.8

5.3

4.2

4.0

4.2

Maximum

0.2

392

55

392

28

364

174

31

6.5

1.6

.6

.4

392

June

4.4

4.2

4.2

4.0

4.2

4.2

4.7

6.5

4.4

3.7

3.2

2.8

2.4

2.4

2.4

2.2

2.2

1.8

1.6

1.5

1.4

1.1

1.2

1.8

2.0

2.0

1.9

1.9

1.6

1.6

-

Minimum

0.1

.2

5.9

.1

4.2

5 9

18

8.3

4.0

1.1

.6

.3

.1

.1

July

1.6

1.6

1.6

1.5

1.4

1.5

1.5

1.5

1.2

1.4

1.4

1.4

1.4

1.4

1.2

1.2

1.1

1.1

.8

.8

.8

1.0

.8

.6

.7

.7

.8

.8

.7

.7

.7

Aug.

0.6

.6

.6

.6

.6

.6

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.4

.3

.3

Sept.

0.3

.3

.4

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

-

Mean Runoff in "ean acre-feet

0.18 11

31.2 1,860

12 . 8 790

13.8 9,960

7.42 456

42.6 2,360

48.6 2,990

5*30 326

2 78 166

1.13 69

.44 27

.23 14

13.8 9,950

Peak discharge.- Nov. 22 (12 p.m.) 1,700 sec.-ft.; Feb. 12 (2:30 p.m.) 1,280 sec.-ft.
180 PAJARO RIVER BASIN

San Benito River near Willow Creek School, Calif.

Location.- Water-stage recorder, lat. 36°36'55", long. 121°12'50", in SW^ sec. 21, T. 15 

S., R. 7 E., 1.8 miles downstream from Willow Creek, 1.8 miles northwest of Willow 

Creek School, and 10 miles northwest of San Benito. Datum of gage is 896.8 feet 

above mean sea level, unadjusted.

Drainage area.- 250 square miles.

Records available.- December 1939 to September 1947.

Extremes.- Maximum discharge during year, 150 second-feet Nov. 23,24 (gage height, 1.95 

reet); no flow Sept. 19-30.

1939-47: Maximum discharge, 6,200 second-feet Apr. 4, 1941 (gage height, 7.8 feet), 

from rating curve extended above 1,600 second-feet; no flow Sept. 19-30, 1947.

Maximum stage known, about 9.0 feet (present datum , from floodmarks left by highwater of 1937-38. -x & 

Remarks.- Records fair. Small diversions above station for irrigation.

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

262-7

28

29

30

31

Oct.

1.3

1.5

1.5

1.5

l.S

1.5

1.5

l.S

l.S

1.3

1.2

1.2

1.1

1.2

1.5

2.0

1.8

1.6

1.6

l.S

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.5

l.S

1.6

Nov.

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

2.0

2.0

2.0

2.0

3.0

3.0

2.0

1.8

1.8

1.6

7.9

13

32

15

63

83

25

15

11

8.1

5.9

5.4

-

Dec.

4.6

4.3

3.9

3.9

3.9

10

6.9

5.9

5.0

4.3

3.9

3.9

3.6

3.6

3.6

3.6

3.3

3.3

3.3

3.3

3.0

3.0

3.0

3.9

5.9

S.9

10

30

23

16

12

Jan.

10

8.1

6.4

5.4

5.0

4.6

4.3

3.9

3.6

3.6

3.3

3.3

3.3

3.3

3.0

3.6

3.0

3.0

3.0

3.0

2.8

2.8

2.8

2.6

2.4

2.4

2.2

3.3

3.0

2.6

2.6

Feb.

2.4

2.4

2.4

2.2

2.2

2.0

2.0

2.2

2.8

3.0

2.6

11

32

32

20

IS

14

12

10

8.7

6.9

5.9

4.6

3.9

3.0

2.8

2.8

3.0

_

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

April... ...................................

May. .......................................

July. ......................................

September . .................................

Water year 1946-47 ......................

Mar.

3.0

3.0

3.3

3.9

3.9

3.6

3.6

3.0

2.8

3.0

2.8

2.6

2.6

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.0

1.8

1.8

1.8

1.8

1.8

2.0

2.4

2.4

2.4

2.4

Apr.

2.2

2.2

4.6

3.0

2.8

2.6

2.4

2.4

2.3

2.3

2.3

2.2

2.0

1.8

1.7

1.6

l.S

1.4

1.3

1.2

1.1

1.0

.9

.8

.7

.7

.7

.7

.8

.8

-

Seccndfoot-days

203.8

2,505.7

 7Q X

3.8

1,079.4

May

0.8

.8

.8

.8

.8

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

Maximum

30

144

3 9

.3

83

June

0.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2 '

.2

.2

.2

 2

J3

.3

.3

.3

.3

-

Minimum

3.0

.8

0

0

July

0.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

Mean

6.57

6.86

23

.13

2.96

Sept.

0.3

.3

.3

.3

.3

.3

.3

.3

.2

.2.

.2

.2

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0-

Runoff in 

acre-feet

404

4,960

7.S

2,140

Note.- Stage-discharge relation unstable Mar. 31 to Sept. 30; discharge Interpolated between 

measurements.
PAJARO RIVER BASIN 181

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 wrant, 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 1947. December 1922 to May 1923 and Decemoer lyay 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, 7.8 second-feet Nov. 20 (gage height, 1.24 

reet); minimum, 0.3 second-foot July 18, 19.

1922-23, 1939-47: 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 July 18, 

19, 1947.

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 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.

0.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.8

1.4

2.8

2.6

2.6

2.5

2.6

2.5

2.5

2.5

2.3

2.5

2.5

2.5

2.5

2.3

2.3

Nov.

2.3

2.5

2.5

2.5

2.5

2.5

2.6

2.5

2.6

2.6

2.6

2.8

2.8

2.8

2.8

2.8

2.8

2.8

3.4

3.2

2.5

2.5

2.8

2.5

2.3

2.3

2.5

2.5

2.5

2.6

-

Dec.

2.6

2.6

2.6

2.6

2.6

2.8

2.6

2.6

2.6

2.8

2.8

2.S

2.fi

2.6

2.6

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.6

2.6

2.6

3.2

4.0

3.0

3.0

2.8

Jan.

2.8

2.8

2.8

2.8

2.8

2.8

2.6

2.6

2.5

2.5

2.5

2.5

2.5

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.8

2.8

2.8

3.0

2.8

2.8

2.6

Feb.

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.8

2.8

2.8

2.8

3.0

2.8

2.8

2.6

2.6

2.6

2.6

2.6

2.6

2.6

3.0

3.C

3.0

3.0

3.0

2.8

2.8

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April ......................................

Mav

July

September. .................................

Water year 1946-47 ......................

Mar.

2.8

2.8

3.0

3.0

3.0

2.8

2.8

2.8

2.8

3.0

3.2

4.0

3.0

3.0

2.8

2.8

2.8

2.8

2.8

2.5

2.5

2.5

2.5

2.5

2.5

2.3

2.0

1.1

1.0

2.3

2.3

Apr.

2.3

2.3

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.3

2.1

2.1

2.1

2.1

1.9

2.1

2.1

2.1

2.1

1.5

.5

.5

.6

.7

.7

.7

.6

.6

.6

-

Secondfoot days

83.8

1,127.6

25 5

23 ?

18.5

630.7

May

0.

.6

.6

.8

.8

.8

.8

.7

.6

.7

.7

.7

.8

.8

.9

.8

.7

.7

.7

Maximum

3 4

4.0

153

2 5

.7

4.0

June

0.7

.7

.7

.7

.8

.8

.8

.8

.8

.8

.7

.7

.7

1.

1.

1.

1.

1.

1.

Minimum

2 3

2.5

.6

.5

.3

July

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.7

1.7

1.6

1.7

1.7

1.7

.8

.3

.3

.4

.5

.5

.6

.7

.6

.7

.7

.7

.8

.9

.9

Aug.

0.9

.9

.8

.9

.8

.9

.9

1.0

Mean

2.70

3.09

2 74

.62

1.73

Sept.

0.8

.6

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.6

.6

.6

.6

.6

.6

.7

.7

.7

-

Runoff in 

acre- feet

166

2,240

37

1,250

854211 O - 49 - 13
182 SAN LORENZO RIVER BASIN

San Lorenzo River at Big Trees, Calif.

Location.- Water-stage recorder, lat. 37°01'40", long. 122°03"30", In Canada del Rincon 

Urant, Santa Cruz County, 0.5 mile south of Big Trees station on Southern Pacific 

Railroad, 1.6 miles downstream from Zayante Creek, and 4 miles north of Santa Cruz. 

Altitude of gage, about 150 feet (from topographic map).

Drainage area.- 110 square miles.

Records available.- April 1937 to September 1947.

Average discharge.- 10 years, 159 second-feet.

Extremes.- Maximum discharge during year, 1,450 second-feet Nov. 22 (gage height, 6.30 

1'eet J; minimum, 8.9 second-feet Sept. 3.

1937-47: Maximum discharge, 24,000 second-feet Feb. 27, 1940 (gage height, 21.1 

feet, from floodmarks), from rating curve extended above 5,000 second-feet on basis of 

slope-area studies and logarithmic plotting; minimum, 0.8 second-foot (regulated) 

June 25, 1939.

Remarks.- Records good. Many small diversions above station for domestic supply.

Discharge, in second-feet, water year October 1945 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.

15

15

16

17

16

15

15

16

16

19

16

19

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

17

Nov.

22

17

16

16

16

17

17

17

17

17

17

17

19

21

. 20

19

19

19

298

141

52

278

528

101

65

52

46

42

39

37

-

Dec.

36

34

34

33

44

96

84

60

51

46

44

41

39

38

37

37

36

34

34

34

34

33

32

42

48

4O

41

38

36

35

34

Jan.

33

33

32

31

31

31

31

30

30

30

30

30

30

30

29

29

28

28

28

28

28

28

28

28

28

28

28

63

49

39

36

Feb.

34

33

32

31

31

30

30

30

102

105

68

587

290

137

1O1

91

79

71

66

62

58

54

52

50

48

47

46

44

_

-

Month

October. ................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March... ...................................

April. ..................................

May

June .......................................

July. ......................................

August .....................................

September. .............. ..................

Water year 1946-47 ......................

Mar.

53

81

135

153

107

87

77

72

74

248

185

126

1O4

92

84

77

72

68

65

63

60

59

57

54

53

51

56

131

108

225

141

Apr.

no

100

105

92

84

SO

74

70

68

64

61

58

56

53

52

50

47

47

46

44

44

44

43

42

42

41

40

39

39

37

Seoondfoot-days

5OO

2 O02

1^305

22,456

985

2,409

3,O18

1,772

678

473

363

3O9.O

14,712.0

May

36

34

32

32

32

33

33

33

32

31

30

31

30

29

29

28

27

25

25

25

25

25

26

25

25

26

34

29

26

24

26

Maximum

19

52fi

96

528

63

587

248

110

36

39

16

13

13

587

June

28

26

25

25

28

28

30

39

31

27

25

23

23

22

20

21

20

20

19

19

18

17

17

17

18

19

18

19

18

18

Minimum

15

16

32

15

28

30

51

37

24

17

13

11

q*j.

9.

July

18

18

17

16

18

18

18

18

16

16

16

16

15

14

14

14

14

14

14

16

14

14

14

14

14

14

14

14

14

14

13

Aug.

13

13

12

12

12

11

12

12

11

11

11

11

12

11

12

12

12

12

12

12

12

11

12

12

11

11

11

12

12

12

11

Mean

16.1

66 7

42.1

61.5

31 . 8

97. *4

59 . 1

29^0

15.3

11.7

5 10.3

5 4O.3

Sept.

11

13

10

9.8

9.8

9.8

9.3

9.8

9.8

9.8

1O

10

10

9.8

11

11

11

10

10

9.8

9.5

10

10

9.8

10

10

10

10

12

13

Runoff in 

ao re-feet

992

3,970

2,590

44,520

1,950

4,780

5, 99O

3,51O

1,780

1,340

938

720

613

29,170

Peak discharge.- Nov. 22 (11 p.m.) 1,45O sec.-ft.; Feb. 12 (4 p.m.) 1,O90 sec.-ft.
STEVENS CREEK BASIN 183

Stevens Creek near Cupertino, Calif.

Location^- Water-stage^recorder and concrete control, lat. 37°18'20", long. 122° 04'35", m " " " ' .... ... - row

ge,

, sec. 22, T. 7 S., R. 2 ¥,, at county highway bridge, 0.2 mile downstream frc 

Stevens Creek Dam and 2.5 miles southwest (revised) of Cupertino. Altitude of

about 385 feet (from topographic map). 

Drainage area.- 18.1 square miles. 

Records available.- January 1930 to September 1947. 

'Average discharge.- 17 years, 12.5 second-feet.

Extre"!e. s ;." Maxlmum discharge during year, 18 second-feet (regulated) June 17 (gage height, 

1.Y8 feet); no flow Sept. 16, 21, 22.

1930-47: 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.

Remarks.- Records excellent except those for period of no gage-height record which are 

g°ocl - Flow regulated by Stevens Creek Reservoir (capacity, 4,000 acre-feet); water 

released during summer.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

1.1 0 1.5 5.4 

1.2 .4 1.6 8.9 

1.3 1.1 1.7 13 

1.4 2.8 1.8 19

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.

8.1 

8.1 

8.1 

8.1 

8.1

8.1 

8.1 

8.1 

8.1 

8.1

8.1 

8.1 

8.1 

8.1 

8.1

8.1 

7.7 

7.7 

7.7 

7.3

7.7 

7.7 

7.7 

7.7 

7.7

7.3 

7.3 

7.3 

7.3 

7.3 

7.3

Nov.

7.3 

7.3 

7.3 

7.3 

7.3

6.9 

6.9 

6.9 

6.9 

6.6

6.6 

6.6 

6.6 

6.3 

6.0

6.0 

6.0 

6.3 

6.6 

6.6

6.6 

6.6 

6.9 

6.9 

6.9

6.6 

6.3 

6.3 

6.3 

6.3

Dec.

6.3 

6.3 

6.3 

6.3 

6.6

6.6 

6.6 

6.6 

6.6 

6.6

6.6 

6.6 

6.6 

6.6 

6.6

6.6 

6.6 

6.6 

6.6 

6.3

6.3 

6.3 

6.3 

6.3 

6.3

6.3 

6.3 

6.0 

6.0 

6.0 

6.0

Jan.

6.0 

6.0 

5.7 

5.7 

5.7

5.7 

5.7 

5.7 

5.7 

5.7

5.4 

5.4 

5.4 

4.8 

4.8

4.8 

5.1 

5.4 

5.1 

5.1

5.1 

4.8 

4.8 

4.8 

5.1

5.1 

4.1 

1.6 

1.6 

1.6 

1.6

Feb.

1.6 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

2.0 

2.0

2.0 

2.6 

2.4 

2.4 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

3.3 

4.5

4.5 

4.5 

4.8

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

mber. ..................................

lendar year 1946 

ary

ember ..................................

ter year 1946-47 ......................

liar.

4.8 

4.8 

5.1 

5.1 

5.1

5.1 

5.1 

5.1 

5.1 

5.4

5.4 

5.4 

5.4 

5.1 

5.1

5.4 

5.4 

5.7 

5.7 

5.7

5.7 

5.7 

5.7 

5.7 

5.7

5.7 

5.7 

6.0 

6.0 

6.0 

7.3

Apr.

6.3 

6.6 

6.6 

6.6 

6.6

6.6 

6.6 

6.6 

6.9 

7.3

7.3 

7.3 

7.3 

7.3 

7.3

7.3 

7.3 

7.3 

7.3 

7.3

7.3 

6.9 

6.9 

7.7 

8.9

8.5 

8.5 

8.1 

8.1 

5.4

Seoondfoot-days

242.3 

200.0 

198.6

3,548.8

149.1 

69.0 

170.2 

216.0 

76.4 

315.5 

46.6 

5.7 

2.7

1,692.1

May

2.8 

2.8 

2.8 

2.8 

2.8

2.8 

2.4 

2.2 

2.4 

2.2

1.6 

2.6 

2.6 

3.0 

2.4

2.6 

3.0 

3.0 

2.2 

1.6

1.8 

1.6 

2.8 

2.6 

2.4

2.4 

3.0 

3.0 

2.0 

1.6 

2.6

June

2.8 

2.6 

1.8 

1.3 

2.4

2.8 

2.8 

2.8 

7.4 

13

14 

16 

15 

15 

14

14 

16 

16 

16 

16

15 

14 

14 

14 

14

14 

13 

10 

8.1 

7.7

Maximum Minimum

8.1 7.3 

7.3 6.0 

6.6 6.0

23 3.5

6.0 1.6 

4.8 1.6 

7.3 4.8 

8.9 5.4 

3.0 1.6 

16 1.3 

7.7 .1 

.3 .1 

.1 0

16 0

July

7.7 

7.3 

6.3 

6.0 

5.7

5.1 

1.0 

.1 

1.1 

.4

.7 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.2 

.2

Aug.

0.2 

.3 

.3 

.2 

.2

.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 

.1

Sept.

0.1

.1 .1 .1 

.1

.1 

.1 

.1 .1 .1

.1 

.1

* :i .1

0

.1 .1 .1 .1

0

0

.1 .1 

.1

.1 .1 

.1 .1 .1

 _.. Runoff in Mean acre-feet

7.82 481 

6.67 397 

6.41 394

9.72 7,040

4.81 296 

2.46 137 

5.49 338 

7.20 428 

2.46 152 

10.5 626 

1.50 92 

.18 11 

.09 5.4

4.64 3,360

Note.- No gage-height record Dec. 28 to Jan. 8: discharge computed on basis of recorded ran-^e in

stage.
184 GUADALUPE RIVER BASIN

Alamitos Creek near Edenvale, Calif.

Location.- Water-stage recorder, lat. 37°14'20", long. 121°52'15", in SW£ sec. 16, T. 8 

s., 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 1947.

Average discharge.- 17 years, 19.1 second-feet.

Extremes.- Maximum discharge during year, 36 second-feet Feb. 16 (gage height, 3.54 

reet); no flow for several months.

1930-47: 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 and 1943.

Remarks.- Records good. Plow regulated by Calero Reservoir (capacity, 9,000 acre-feet) 

ana Aimaden Reservoir (capacity, 2,500 acre-feet); water released during summer. Small 

diversions above station.

Rating table, water year 1946-47 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Feb. 12-23)

2.6 0

2.65 .1

2.7 .3

2.8 1.1

2.9 2.7

3.0 4.7

3.1 7.2

3.2 12

3.3 18

3.4 26

3.5 36

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.

Jt

Nov. Dec. Jan. Feb.

0

0

0

0

0

0

0

o

0

o

0

9.5

16

21

29

29

27

21

11

7.2

6.8

6.2

5.9

5.9

5.7

5.7

5.7

5.7

_

_

-

Month

December . ...................................

Calendar year 1946 ......................

Maroh. .....................................

April ......................................

May. .......................................

July... ....................................

September . .................................

Water year 1946-47 ......................

Mar.

5.7

5.9

6.5

6.5

6.8

7.2

6.8

6.5

6.2

6.2

8.0

10

9.8

9.8

10

11

11

12

12

14

14

14

13

12

9.8

6.8

5.5

5.9

5.5

5.7

5.1

Apr.

6.2

8.4

8.4

8.0

8.4

8.4

8.4

8.4

8.0

7.6

8.0

6.2

5.7

3.3

2.3

3.0

2.1

1.7

1.2

1.1

1.1

.6

0

O

.0

0

O

0

0

oSecondfoot-days

0

0

2,847.2

0

604.0

May

Maxima

0

39

29

0

29

June

Minimum

0

0

0

0

0

0

0

July Aug.

Mean

o

7.80

7.80

0

1.65

Sept.

Runoff in 

acre-feet

o

o

0

5,650

0

433

231

0

0

0

1,200
GUADALUPE RIVER BASIN 185

Guadalupe River at San Jose, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°20'00", long. 1210 54'00", 

at san Jose, Santa Clara County, 100 feet downstream from Los Gatos Creek. Altitude 

of gage, about 80 feet (from topographic map).

Drainage area.- 131 square miles.

Records available.- January 1930 to September 1947.

Averag. e discharge.- 17 years, 38.4 second-feet; affected by storage and spreading since

J.9clt>.

Extremes.- Maximum discharge during year, 394 second-feet Nov. 23 (gage height, 3.03 

reet j; no flow, for several months.

1930-47: 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 poor. Small diversions above station. Flow regulated by several 

reservoirs.

Day

1

2

3

4

5

6

7

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 1946 to September 1947

Oct. Nov.

0

0

0

0

0

o

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

1.4

194

23

.7

9.S

13

2.0

0

0

-

Dec.

0

o

0

0

0

4.4'

8.2

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

Jan. Feb.

0

0

o

0

0

0

0

o

.6

0

0

116

68

.3

0

.6

0

0

0

0

0

0

0

0

0

0

0

0

_

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March.. ........................."...........

April.. ....................................

Uav ay. .......................................

June .......................................

July.... ...................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar. Apr.

Secondfoe t-days

0

243 4

is!?

786 . 6

0

135* o' 5

O

0

o

0

0

0

442.6

May

Maximum

0

194

8.2

194

0

116

0

0

0

o

0

0

0

194

June

Minimum

cc

c

c

c

c

c

c

(c

(

c

(

c

July Aug.

Mean

) 0

8.11

) .44

2 . 16

) 0

) 6.62

) 0

) 0

) 0

) 0

) 0

) 0

) 0

) 1.21

Sept.

Runoff in 

acre-feet

0

483

27

1,560

O

368

0

0

0

0

0

0

0

878
186 GUADALUPE RIVER BASIN

Los Capitancillos Creek at Guadalupe, Calif.

Location - Water-stage recorder and concrete control, lat. 37°13'05", long. 121°64 I 3&", 

in sw£ sec. 19, T. 8 S., R. 1 E., 0.5 mile northwest of Guadalupe and 3.5 miles upstream 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 1947.

Average fllseharge.- 17 years, 11.0 second-feet.

Extremes.- Maximum discharge during year, 52 second-feet Nov. 23 (gage height, 1.31 feet); 

no now during part or all of many days In October, July, August, and September.

1930-47: 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 except those below 1 second-foot, which are fair. Small diversions 

above station. Plow regulated by Guadalupe Reservoir (capacity, 3,500 acre-feet);water 

released during sunmer.

Rating table, vater year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

0.3 0.03 O.o 3.2 1.0 23

.35 .15 .7 6.2 1.1 31

.4 .5 ' .8 11 1.2 40

.5 1.4 .9 16

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

Discharge, in second-feet, water year October 1946 to September 1947

Oct.

0

0

.1

.2

.1

0

.1

.1

0

0

o

0

0

0

.1

.1

.1.1

.1.1

.2

.2

.2

.1

.1

.2

.2

.3

.3

.3

.3

Nov.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.5

.9

1.1

l-.l

1.1

1.1

1.1

21

12

3.0

5.1

40

29

2.6

6.5

1.0

7.7

2.2

3.4

-

Dec.

2.4

2.2

2.2

2.2

3.0

14

11

5.8

4.8

4.3

4.0

3.5

3.2

3.0

2.8

2.8

2.8

2.6

2.6

2.6

2.4

2.4

2.4

3.0

4.3

3.7

4.0

3.2

3.0

2.8

2.8

Month

Jan.

2.8

2.8

2.6

2.

2.

2.

2.

2.

2.4

2.4

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.0

2.0

2.0

1.8

1.8

1.8

1.7

1.7

1.7

1.7

3.2

1.3

1.1

1.1

Feb.

1.0

1.0

.9

.9

.8

.8

.8

.8

3.4

3.0

4.3

21

14

9.7

9.2

9.2

9.2

9.2

8.7

8.7

8.7

7.4

7.4

7.0

7.0

7.0

6.6

6.6

_

.

-

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

7.0

7.0

9.2

8.7

7,8

7.4

7.4

7.4

7,4

9.7

11

12

12

13

13

13

12

10

10

10

7.8

5.4

5.4

5.1

5.1

4.8

4.8

7.8

9.2

11

9.7

Apr.

9.2

9.2

9.2

9.2

8.7

8.7

8.7

8.7

8.3

8.3

7.8

7.8

7.4

7.4

7.4

7.4

7.0

7.0

7.0

6.6

6.6

6.6

6.2

5.8

5.4

5.4

4.8

2.8

2.8

2.6

-

May

2.4

2.0

2.0

2.0

2.0

1.8

2.0

2.0

1.8

1.7

1.5

1.5

1.5

1.5

1.5

1.4

1.3

1.3

1.2

1.0

1.1

1.1

1.1

1.1

1.1

1.2

1.5

1.4

.9

.8

1.8

June

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.1

2.1

1.1

.8

.7

.6

.5

.5

.5

.5

.5

.3

.3

.2

.1

.1

.2

.3

.3

.4

.4

.3

.3

-

fSfys "a*1"""" MinimuB

3.6 0.3 0

143 .8 40 .3

115.8 14 2.2

2,298.1 40 ' 0

66.1 3.2 1.1

174.3 21 .8

271.1 13 4.8

210.0 9.2 2.6

46.5 2.4 .8

21. 3 2.1 * 1

s'.5 '.5 0*

000

.3 .2 0

1,056.3 40 0

July

0.3

.3

.3

.3

.3

.3

.2

.1

.1

.1

.1

.2

.2

.2

.2

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

0

.2;i

o

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

 _ Runoff in "ean acre-feet

0.12 7.1

4.79 285

3.74 230

6.30 4,560

2.13 131

6.22 346

8.75 538

7.00 417

1.50 92

.71 42

.11 6.9

.01 .6

0 0

2.89 2,100
GUADALUPE RIVER BASIN 187

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 railroac 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 1947. January 1930 to May 1944 at site at 

Los Gatos.

Extremes.- Maximum discharge during year, 664 second-feet Feb. 12 (gage height, 5.74 

feet); no flow during several months.

1930-47: Maximum discharge, 7,110 second-feet Feb. 27, 1940 (gage height, 14.71 

feet, former site and aatim), from rating curve extended above 2,300 second-feet by 

logarithmic plotting; no flow during part of most years.

Remarks.- Records good. Flow regulated by several small reservoirs above station. 

Several diversions above station for irrigation. Vasona percolation reservoir is 

Just below station.

Rating tables, water year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Nov. 19-22)

Oct. 1 to Nov. 18 Nov. 19 to Sept. 30

2.9

3.0

3.1

3.2 .8

3.3 1.8

3.4 3.6

3.1 0

3.2 .2

3.3 .4

3.4 1.4

3.5 3.2

3.6 5.8

3.7 8.7

3.8 13

3.9 18

4.0 24

4.2 38

4.4 56

4.6 85

4.8 130

5.0 191

5.3 325

Discharge, in seoond-fset, 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. Nov.

0

0

0

0

0

0

0

0.1

.1.1

.1.1

.2

.2

.2

.9

1.6

2.7

74

33

8.4

103

197

34

23

39

34

21

6.1

1.8

-

Dec.

1.9

1.6

1.4

4.4

15

47

27

20

8.9

1.9

1.6

1.4

1.3

1.2

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.0

9.8

13

8.4

13

11 '

8.0

1.9

1.6

Jan.

1.3

1.3

1.2

1.0

1.0

.9

.9

.8

.8

.7

.7

.7

.8

.8

.8

.8

.8

21

10

1.9

1.4

Feb.

1.3

1.2

1.0

1.0

1.0

1.0

.9

.8

30

34

19

295

112

60

30

21

17

11

9.5

8.7

7.5

6.1

4.4

4.2

2.8

2.4

2.8

2.3

_

_

-

Month

October. ...................................

November . ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March..... .................................

April ......................................

May........................................

June .......................................

July.... ...................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

4.0

32

50

56

38

27

22

20

19

78

55

38

31

26

20

18

18

17

12

8.4

7.5

7.0

7.5

7.0

4.2

4.2

4.0

48

40

79

49

Apr.

35

30

29

25

23

20

15

13

11

8.1

5.8

3.9

3.4

3.0

2.1

1.8

1.6

1.3

1.3

1.2

1.2

1.2

1.2

1.2

1.0

1.0

1.2

1.0

1.0

.9

-

Seccndfoct-days

0

580.6

210.7

4,908.0

56.6

687.9

846.8

245.4

24.0

20.3

3.1

0

0

2,675.4

May

0.8

.9

.9

.9

1.0

1.0

1.2

1.0

1.0

1.0

1.0

1.2

1.2

1.2

1.0

.9

.8

.6

.6

.5

.4

.4

.4

.4

.4

.4

.4

.6

.6

.7

.6

Maximum

0

197

47

197

21

295

79

35

1.2

5.5

.3

0

0

295

June

0.5

.6

.6

.6

.5

.5

.5

5.5

.7

.7

.7

.6

.6

.6

.5

.5

.5

.5

.6

.7

.5

.4

.4

.4

.4

.4

.4

.3

.3

.3

-

Minimum

0

0

l.C

0

!(

4.(

B 

.

0

0

0

0

July

 0.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

0

19.4

) 6.80

13.4

1.83

3 24.6

) 27.3

J 8.18

I .77

5 .68

.10

0

0

7.33

Sept.

Runcff in 

acre-feet

0

1,150

418

9,720

112

1,360

1,680

487

48

40

6.1

0

0

5,300

Peak discharge.- Nov. 23 (11 p.m.) 604 sec.-ft.; Feb. 12 (2:30 p.m.) 664 sec.-ft.
188 GUADALUPE RIVER BASIN

Campbell Creek at Saratoga, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°IS'IS", long. 122°02"25", 

in Quito Grant, O.S 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 1947.

Average discharge.- 14 years, 9.94 second-feet.

Extremes.- Maximum discharge during year, 100 second-feet Nov. 22 (gage height, 2.46 

feet); no flow for several months.

1933-47: 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 excellent. Diversion and regulation above station by San Jose Water 

Works.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

0.7 0.04

.8 .3

.9 .8

1.0 1.6

1.1 2.6

1.2 4.1

1.3 6.1

1.4 8.8

1.5 12

1.6 16

1.7 21

1.8 27

1.9 34

Discharge, in second-feet, water year October 1946 to September 1947

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

28

29

30

31

Oct.

0

0

.2

.2

0

0

0

0

0

0

0

0

0

o

0

0

0

.1

.3

.2

.3

.4

.3

.3

.2

.2

.2

.3

.3

.4

.5

Nov.

0.5

.4

.2

.3

.3

.3

.4

.4

.2

.3

.3

.2

.6

1.0

.8

.8

.8

.8

17

6.2

2.2

24

20

6.3

3.8

2.6

2.3

2.0

1.9

1.7

Dec.

1.6

. 1.6

1.6

1.6

3.9

11

5.9

4.3

3.3

3.0

2.7

2.5

2.2

2.1

2.0

2.0

1.9

1.8

1.7

1.7

1.6

1.6

1.6

3.1

2.5

2.3

2.9

2.2

2.2

2.2

2.0

Jan.

1.9

1.9

1.8

1.8

1.8

1.7

1.7

1.6

1.6

1.6

1.6

1.8

1.8

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

5.1

3.1

2.3

2.0

Feb.

2.0

1.9

1.8

1.8

1.8

1.7

1.7

1.7

4.7

4.5

3.6

33

17

10

7.7

6.5

5.5

4.9

4.3

3.9

3.6

3.3

3.0

3.0

2.9

2.9

2.7

2.6

_

' -

Month

December. ...................................

Calendar year 1946 ......................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

3.3

5.3

18

18

12

9.4

7.7

7.0

6.3

18

14

12

9.8

8.4

7.2

6.5

5.9

5.5

5.3

4.9

4.7

4.3

4.1

3.9

3.8

3.5

3.8

9.4

9.1

14

11

Apr.

9.4

8.8

8.8

7.2

6.8

6.3

5.9

5.5

5.3

4.9

4.5

3.9

3.6

2.9

Z.I

2.3

2.2

2.1

1.9

1.8

2.0

2.2

1.9

1.6

1.6

1.5

1.5

1.5

1.5

1.3

Secondfoot-days

4.4

98.6

82.6

1,597.3

57.9

16.3

0

779.7

May

1.1

.8

.8

.8

.8

.9

.9

1.0

1.0

.8

.8

1.0

.8

.4

.4

.3

.1

.2

.1

.1

.1

.1

0

0

0

0

1.6

.4

.4

.1

.5

Maximum

0.5

24

11

29

5.1

33

0

33

June

0.7

.4

.1

.1

.5

.8

1.1

1.6

.8

.3

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

Minimum

0

.2

1.6

0

1.6

1.7

i « ,1.3

0

0

July Aug.

Mean

0.14

3.29

2.66

4.38

1.87

5.14

3.78

.53

.21

0

 o

2.14

Sept.

Runoff in 

acre feet

8.7

196

164

3,170

115

286

508

225

32

13

0

0

1,550
COYOTE CREEK BASIN 189

Coyote Creek near Madrone, Calif.

Location.- Water-stage recorder, lat. 3?°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 1947.

Average discharge.- 41 years, 76.4 second-feet.

Extremes.- Maximum discharge during year, 196 second-feet Nov. 23 (gage height, 4.85 

feet); minimum daily, 0.2 second-foot at times during September.

1902-12, 1916-47: 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 poor. 

Mo large diversion. Regulation by Coyote Reservoir (capacity, 30,000 acre-feet); 

water released during summer.

Rating tables, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Nov. 20 Nov. 21 to Sept. 30

2.2 1.4 3.5 31 1.8 0.2 2.4 4.3 3.2 20 4.5 131

2.3 2.3 3.8 49 1.9 .4 2

2.5 5.2 4.1 76 2.0 .9 2

2.8 11 4.5 131 2.1 1.5 2

3.2 20 4.6 148 2.2 2.3 2

.5 5.6 3.4 27 4.7 166

.6 7.1 3.6 36 4.9 2OS

.7 8.7 3.8 49

.8 10 4.1 76

2.3 3.2 2.9 12 4.3 102

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.

a3.4

a3.4

a3.2

a3.2

a3.0

a3.o

a3.o

a2.S

a2.8

a2.8

a2.6

a2.6

a2.6

a2.4

2.4

2.6

2.4

2.3

2.2

2.1

2.0

2.0

2.0

1.9

1.8

1.8

1.8

1.8

1.9

2.0

2.0

Nov.

1.9

1.8

1.8

1.9

1.9

1.9

1.9

1.9

1.8

1.8

1.8

1.8

2.3

2.6

2.4

2.3

2.3

2.4

9.6

142

50

13

152

194

180

136

26

17

14

12

-

Dec.

9.8

8.5

7.4

7.3

8.5

13

28

22

15

12

11

10

9.2

.6

.1

.1

.1

.3

.3

.3

.3

.1

.0

9.8

18

26

25

21

17

14

13

Jan.

12

11

10

9.1

8.7

8.5

8.1

.7

.6

.6

.4

.4

.3

7.3

7.0

6.5

6.2

6.0

5.9

5.9

5.9

5.8

5.6

5.3

5.3

5.3

5.3

8.5

8.9

10

8.7

Feb.

7.7

7.7

7.6

7.6

7.3

7.1

6.8

6.8

12

45

51

71

64

62

62

47

26

26

25

25

25

25

24

24

24

23

23

23

_

-

-

Month

October ....................................

November ...................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ................................../...

May........................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

22

22

26

29

26

25

25

25

25

30

29

29

29

28

27

27

27

27

24

24

24

24

23

23

22

23

23

27

24

23

23

Apr.

Secondfoot-days

75.8

982.1

377.7

15,808.3

231.8

765.6

785

769

392.2

67.6

33.2

17.5

7.7

4,505.2

23

23

23

22

22

21

21

21

21

21

20

20

20

20

20

19

20

22

26

28

30

34

38

37

37

35

32

31

31

31

-

May

30

29

29

28

27

29

36

34

34

12

8.9

7.7

7.3

6.6

6.0

5.6

5.3

5.1

4.7

4.2

3.8

3.8

3.9

3.6

4.0

3.6

5.2

4.2

3.6

3.5

3.6

June

3.6

3.2

3.1

3.0

3.0

2.9

3.2

3.3

2.7

2.5

2.2

2.1

2.1

2.0

2.2

2.0

2.1

1.9

1.7

1.7

1.4

1.7

1.7

1.8

1.7

2.0

1.8

1.7

1.7

1.6

-

Maximum Minimum

3.4 1.6

194 l.£

28 7.C

286 1.6

12 5.3

71 6.6

3O 22

38 19

36 3.E

3.6 1.6

1.7 . )

.7 .4

.4 .2

194 .2

July

1.7

1.6

1.5

1.4

1.4

1.4

1.4

1.4

1.3

1.1

.9

.9

1.2

.9

.9

.8

.9

1.0

.9

.9

1.0

1.0

1.0

.9

.9

.9

.9

.9

.8

.7

.7

Aug.

0.7

.6.4'

.7

.6

.5

.6

.6

.5

.5

.5

.6

.7

.7

.6

.6

.6

.6

.6

.6

.7

.6

.5

.5

.5

.5

.5

.5

.5

.5

.4

Sept.

0.4

.3

3

.3

.3

.3

.2

.3

.3

.3

.3

.3

.2

.2

.2

.2

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

u . Runoff in Mean acre-feet

2.45 150

32.7 1,950

12.2 749

43.3 31,360

7.48 460

27.3 1,520

25.3 1,560

25.6 1,530

12.7 778

2.25 134

1.O7 66

.56 35

.26 15

12.3 8,950

a Ho gage-height record; discharge interpolated.
190 COYOTE CREEK BASIN

Coyote Creek near Edenvale, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°16'15", long. 121°47'55", 

at east boundary of Santa Teresa Grant, at "The Narrows", 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 1947.

Average discharge.- 31 years, 40.8 second-feet; affected by storage and spreading since

Extremes.- Maximum discharge during year, 95 second-feet (regulated) Nov. 25 (gage 

height, 3.14 feet); no flow during most of year.

1916-47: Maximum discharge, 10,000 second-feet (unregulated) Feb. 10, 1922 

(gage height, 12.8 feet, from floodmarks), from rating curve extended above 4,900 

second-feet parallel to 1917 curve defined by current-meter measurements to 8,400 

second-feet; no flow at times during each year.

Remarks.- Records good. Water pumped from wells along creek above station for irrigation. 

Flow regulated by Coyote Reservoir (capacity, 30,000 acre-feet) and by detention in 

percolating reservoir 6 miles above station; water released during summer.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

2.15

2.2

2.3

2.4

0 

.1 

.6

2.2

2.5

2.6

2.7

2.8

5.5

12

20

31

2.9 45

3.0 63

3.1 85

Discharge, in second-fset, wster 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

Oot. Nov.

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

25

76

72

32

.3

0

0

-

Dec. Jan.

.

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

8.4

12

4.2

0

0

0

0

0

0

0

O

0

0

0

_

_

-

Month

December. ....................................

Calendar year 1946 ......................

Janu 

Febr 

Marc

Apri 

May

July- ............... ...... - . -

Augu 

Sept

St. ....................................

ember. .................................

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

0

205.3

0

4,650.4

0 

24.6 

0

0 

0

0

0

0 

0

229.9

May

Maximum

0

76

0

242

0 

12 

0

0 

0

0

0

0 

0

76

June

Minimum

C

i

C

C

C 

C 

C

C 

C1

C

C 

C

C

July Aug.

Mean

0

6.84

) 0

) 12.7

) 0 

) 0.88 

) 0

) 0 

) 0

i 0

) 0

) 0 

) 0

) .63

Sept.

Runoff in 

acre-feet

0

407

0

9,220

0 

49 

0

0 

0

0

0

0 

0

456
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 1947.

Average discharge.- 30 years (1916-19, 1920-47), 82.9 second-feet.

Extremes.- Maximum discharge during year, 167 second-feet Mar. 10 (gage height, 3.61 

feet); no flow Oct. 2, 3, June 22 to Sept. 30.

1916-47: 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 secondfeet; no flow at times.

Remarks.- Records good. Flow regulated by Calaveras Reservoir (capacity, 96,900 acrefeet); 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 1946-47 (gage height. In feet, 

and discharge In second-feet)

1.57 0 2.0 3.45 2.7

1.60 .04 2.1 5.4

1.65 .19 2.2 7.8

1.70 .38 2.3 10.8

1.75 .66 2.4 14.0

1.80 1.00 2.5 17.5

1.9 2.00 2.6 21.3

2.8

2.9

3.0

3.1

3.2

3.3

Discharge, in second-feet, water year October 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.

0.1

0

0

.1.1

.3

.3

.3

.2

.2

.2

.1

.1

.1

.1

.1

.2

.5

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Nov.

0.3

.5

.5

.6

.5

.4

.5

.5

.5

.7

.8

.9

.8

1.0

1.1

1.0

.8

.9

4.2

14

13

10

8.1

7.0

7.2

5.0

4.O

3.2

2.8

2.4

-

Dec.

2.3

2.3

2.1

2.0

2.1

4.4

4.8

8.7

5.O

3.6

3.0

2.7

2.6

2.3

2.1

2.3

2.3

1.9

1.9

1.9

1;9

1.8

1.7

3.2

4.4

6.6

5.9

4.8

5.0

4.0

3.3

Jan.

3.2

2.8

2.8

2.7

2.7

2.6

2.4

2.3

2.1

2.3

2.3

2.1

2.3

2.4

2.3

2.1

2.3

2.1

2.4

2.7

2.7

3.0

2.7

2.4

2.3

2.3

2.6

4.2

4.8

5.9

5.0

Feb.

3.8

3.6

3.4

3.3

3.3

3.3

3.3

3.2

3.8

4.2

4.0

11

20

17

11

8.4

7.2

6.1

5.0

4.6

4.0

3.8

3.6

3.3

3.2

3.2

3.2

3.0

_

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

Maroh. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

2.8

3.2

4.8

8.1

10

8.1

6:1

5.4

5.6

62

82

39

20

15

12

10

9.0

8.1

7.2

6.8

x6.4

6.1

5.6

5.2

4.4

4.2

4.4

6.8

6.4

11

8.4

Apr.

Second 

foot-days

5.9

93.2

1O2.9

5,118.8

86.8

156.8

394.1

136.4

50.4

19.5

0

O

O

1,046.0

7.2

6.8

8.7

9.0

8.4

8.1

7.O

6.1

6.4

5.9

5.0

4.2

4.0

3.6

3.4

3.3

3.3

3.0

3.0

2.8

2.8

2.7

2.6

2.6

2.4

2.3

2.4

3.0

3.3

3.2

-

26.5

32.5

40

48

59

73

91

to September 1947

May

2.6

2.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1

8

5

9

7

7

7

7

8

6

6

6

5

5

1.4

1.

1.

1.

4

5

5

1.7

1.3

1.

1.

1.

5

4

2

1.0

1.3

1.

1.

1.

1.

9

4

5

3

2.3

Maximum

0.5

14

8.7

533

5.9

20

82

9.0

2.6

2.1

0

O

0

82

June

2.1

1.5

1.1

.9

1.1

1.8

1.9

1.6

1.5

1.3

.9

.6

.7

.7

.5

.3

.2

.2

.3

.2

.1

O

O

0

0

0

0

0

O

0

-

Minimum

0 ' 1."

0

2.]

3.C

2.E

Z.I

l.C

O

0

O

O

0

July Aug. Sept.

 ___ Runoff in Mean acre-feet

0.19 12

3.11 185

3.32 204

14.0 10,150

2.80 172

) 5.60 311

12.7 782

5 4.55 271

) 1.63 100

.65 39

0 0

0 0

0 0

2.87 2,080
192 SAN LORENZO CREEK BASIN

San Lorenzo Creek at Hayward, Calif.

Location.- Water-stage recorder, lat. 37°41', long. 122°04', at highway bridge on B 

Street, in San Lorenzo Grant, just outside of 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 1947.

Extremes.- Maximum discharge during year, 432 second-feet Mar. 1G (gage height, 5.30 

reet), from rating curve extended above 140 second-feet by logarithmic plotting; no 

flow Oct-. 1 to Nov. 19, July 7 to Sept. 30.

1940, 1946-47: Maximum discharge observed, 3,440 second-feet Feb. 27, 1940 

(gage height, 13.3 feet, datum then in use), from rating curve extended above 1,300 

second-feet; no flow during part of 1947.

Remarks.- Records good. A few very small diversions above station.

Rating table, water year 1946-47 (gage height, In feet

and discharge, In second-feet) 

(Shifting-control method used Dec. 15-19)

2.0

2.1

2.2

2.3

2.4

0

.4 

2.0 

4.4 

7.8

2.5

2.6 

2.8 

3.0 

3.2

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

16

17

18

20

212'i

26

27

29

31

Oct. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

9

0

9.0

3.0

.4

.5

2.2

.8

.4

.3

.3

.3

.3

.4

-

Dec.

0.4

.5

.6

.6

1.4

4.9

2.0

1.2

.9

.8

.8

.8

.8

.8

.8

.8

.6

.6

.6

.6

.6

.6

.6

2.7

2.0

1.6

2.5

1.4

1.0

1.0

.9

Jan.

0.9

.9

.8

.8

.9

.9

.9

.9

.9

.9

.8

.9

1.0

.9

.8

.8

.8

.8

.9

.9

.9

.9

.9

.9

1.0

1.0

1.0

4.7

2.2

1.4

1.2

Feb.

1.0

1.0

.9

.9

.9

.9

.9

.9

1.4

1.6

1.4

12

5.1

2.5

2.0

2.0

1.8

1.6

1.4

1.4

 1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.0

_

-

Month

December ...................................

Calendar year ......................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

1.8

6.5

6.4

6.8

3.2

2.5

2.2

2.5

4.2

62

23

10

6.8

5.1

4.4

3.9

3.9

3.9

3.7

3.4

3.2

3.2

3.2

2.7

2.7

2.5

3.0

7.1

4.7

12

f9.5

Apr.

fa. 7

9.2

13

6.4

4.4

5.4

5.1

4.7

5.4

3.9

3.7

3.0

2.7

2.7

2.5

2.2

2.2

2.5

2.0

1.8

1.6

1.6

1.6

1.4

1.4

1.4

1.2

1.4

1.2

1.0

Secondfoot-days

35.4

_

5 2

0

485.0

May

0.9

.8

.8

.8

.8

.8

.8

.8

.8

.6

.6

.5

.5

.6

.6

.6

.5

.4

.4

.3

.3

.3

.3

.2

.2

.2

.3

.4

.4

.2

.2

Maximum

4.9

_

a*?

g

0

62

June

0.2

.2

.2

.2

.2

.3

.4

.6

.5

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Minimum

.4

_

0

0

July

0.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

Aug.

Mean

1.14

_

0

1.33

Sept.

Runoff in 

acre- feet

70

_

0

962

f Fragmentary gage-height record; discharge computed on basis of partly estimated gage heights.
KERN RIVER BASIN1

Kern River near Kernville, Calif.

193

Location.- Water-stage recorder, lat. 35°56', long. 118°29 I , in NE£ sec. 14, T. 23 S., R. 

32 K., 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 1947.

Average discharge.- 35 years, 725 second-feet, combined flow of Kern River near Kernville 

ana K.ern Kiver No. 3 Canal.

Extremes.- Maximum discharge during year, 2,770 secohd-feet Nov. 23 (gage height, 9.08 

feet); minimum, 0.3 second-foot (regulated) July 21.

1912-47: Maximum discharge, 9,690 second-feetj (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, 192J1, to Feb. 7, 1925.

Extremes do not include flow in Kern River No. 3 Canal.

Remarks.- Records good except those below 400 secondpfeet, which are fair. Kern River 

No. 3 Canal (see p.197) diverts 1 mile above station.

31 discharge measurements, furnished

by Southern California Edison Co., obtained in co 

Commission project.

Discharge, in second-feet, water year Octo

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.0 

3.3 

2.0 

1.6 

1.7

1.7 

1.7 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.9 

1.9 

1.9 

1.9

1.7 

1.7 

1.7 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.7 

1.7

Nov.

1.9 

1.9 

1.7 

1.9 

1.7

1.9 

1.6 

1.6 

1.6 

1.6

1.7 

1.7 

2.1 

1.9 

1.9

1.9 

1.7 

11 

376

16 

2.4 

1,430 

555 

202

136 

96 

68 

44 

25

Dec.

15 

6.5 

2.5 

2.4 

25

39 

2.1 

1.7 

1.6 

1.7

1.6 

1.6 

1.6 

1.7 

1.7

1.7 

1.7 

1.6 

1.7

1.6 

1.6 

1.6 

1.9 

2.1

2.4 

5.6 

2.9 

2.9 

2.5 

12

Jan.

2.5 

2.4 

2.0 

1.7 

1.9

2.0 

1.9 

1.7 

1.7 

1.9

al.9 

al.9 

al.9 

a!2 

al.9

al.7 

al.7 

al.7 

al.7

al.7 

1.7 

1.7 

1.7 

1.7

1.7 

1.9 

2.1 

1.9 

2.0 

2.0

Feb.

2.1 

2.0 

2.0 

2.0 

2.0

2.0 

1.9 

1.6 

2.0 

2.0

1.9 

1.7 

1.9 

1.9 

1.9

2.0 

1.9 

1.7 

1.7

1.7 

1.7 

1.6 

1.6 

1.6

1.6 

1.6 

1.6

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

lendar year 1946 

ary

ember. .................................

ter year 1946-47 ......................

Mar.

1.7 

2.0 

1.9 

1.7 

1.7

1.7 

1.7 

1.7 

1.6 

1.6

1.6 

1.7 

1.7 

1.7 

1.7

1.9 

1.9 

1.7 

1.6

1.7 

1.7 

2.0 

1.6 

1.7

1.7 

1.7 

1.7 

1.7 

1.7 

1.7

Apr.

1. 

1. 

1.

i:

I:

I:i.i

i. i.

35 

104 

182

296 

426 

454 

554 

685

694 

526 

393 

307 

247

202 

163 

170 

174 

242

Secondfoot-days

54.4 

2,993.6 

151.2

101,169.5

68.0 

51.1 

53.6 

5,874.0 

31,238 

7,295.9 

33.9 

42.9 

53.1

47,909.7

1

inection with a Federal Power 

ber 1946 to September 1947

May

7 533 

7 973 

9 1,290 

5 1 , 360 

9 1,460

3 1,660 

3 1,550 

3 1,410 

3 1,100 

3 902

3 716 

3 627 

640 

562 

495

640 

820 

912 

1,030 

1,190

1,240 

1,320 

1,490 

1,390 

1,270

1,150 

924 

716 

605 

667 

596

ucimum

3.3 

L,430 

39

2,250

12 

2.1 

2.0 

694 

1,660 

484 

2.0 

1.6 

2.0

1,660

June

484 

480 

4OO 

331 

288

269 

343 

390 

358 

377

403 

334 

305 

349 

390

362 

257 

228 

254 

293

209 

99 

38 

24 

14

5.2 

5.2 

2.9 

2.0 

1.6

Minimum

1.6 

1.6

1.6

1.2

1.7 

1.6 

1.6 

1.6 

495 

1.6 

.7 

1.0 

1.6

.7

July

1.6 

1.6 

2.0 

1.4 

1.2

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.0

1.1 

1.1

1.1

1.0 

1.0 

1.0 

1.0

.7 

.8 

.9 

1.0 

1.0

1.0 

.9 

.8 

1.0 

1.0 

1.0

Aug.

1.0 1.1 1.1 1.1

1.3

1.3 

1.3 

1.4 

1.5 

1.4

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.4 

1.4

1.5

1.5 

1.5 

1.5 

1.6

1.6 

1.6 

1.6 

1.6 

1.6 

1.6

Sept.

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.7 

1.7 

1.9 

1.9

1.7 

1.7 

1.6 

1.7 

1.7

1.7 

1.9 

1.9 

2.0 

1.9

1.7 

1.7 

1.7 

1.9 

2.0

1.9 

1.9 

1.9 

1.9 

1.9

Mean Runoff in 

Mean acre-feet

1.75 108 

99.8 5,940 

4.88 300

277 200,700

2.19 135 

1 . 82 101 

1.73 106 

196 11,650 

1,008 61,960 

243 14,470 

1.09 67 

1.38 85 

1.77 105

131 95,030

a No gage-height record; discharge computed from record of spill at diversion dam 1 mile upstream.
194 KERN RIVER BASIN

Combined discharge, In seoond-feet, of Kern River and Kern River No. 3 Canal near Kernvllle, Calif, 

water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

239

Z93

£53

Z56

Z59

262

Z61

Z55

252

Z40

234

232

229

ZZ6

224

230

240

237

230

229

225

223

222

221

218

217

216

213

210

205

208

Nov. .

209

211

206

203

205

208

213

215

213

205

215

229

247

237

229

236

240

238

266

696

327

311

1,760

889

536

472

433

406

382

364

-

Dec.

354

344

334

339

388

539

465

412

381

369

366

355

348

352

346

341

331

324

311

318

313

311

311

378

457

488

513

422

381

346

353

Jan.

374

347

310

330

348

336

326

317

315

316

320

310

305

265

264

280

293

289

284

288

282

280

278

278

277

279

281

285

244

302

295

Feb.

293

 288

287

289

289

294

296

302

330

354

336

335

349

346

346

344

350

335

335

333

331

329

332

340

353

358

360

351

_

-

Month

December. ..................................

Calendar year 1946 ......................

Hay........................................

September. .................................

Water year 1946-47 ......................

Mar.

347

415

383

365

367

354

352

350

336

341

355

361

368

382

397

420

428

466

464

473

468

484

548

515

493

484

512

535

529

532

535

Apr.

549

533

525

495

496

478

473

482

498

486

511

560

613

697

787

898

1,020

1,040

1,150

1,280

1,280

1,120

983

900

840

793

754

760

762

832

-

Second 

foot-days

7,259

10,801

11,590

250,730

5 923

4,519

179,225

May

1,120

1,560

1,880

1,950

2,050

2,250

2,140

2,010

1,700

1,490

1,310

1,220

1,240

1,160

1,090

1,230

1,410

1,510

1,630

1,790

1,840

1,920

2,090

1,990

1,870

1,750

1,530

1,320

1,210

1,270

1,200

Maximum

293

1,760

539

2,850

374

2 250

177

2,250

June

1,080

1,080

999

930

886

867

941

988

956

975

1,000

931

902

946

987

960

855

828

854

895

810

700

636

618

603

580

584

564

534

497

Minimum

205

203

311

182

244

287

336

473

1,090

218

142

142

July

473

462

449

429

410

402

398

388

373

362

359

339

329

320

312

306

300

296

289

283

284

278

270

262

252

240

232

226

221

218

218

Aug.

214

213

224

220

205

199

197

198

212

220

218

202

200

211

206

195

191

191

191

185

180

180

176

170

165

163

162

160

160

159

156

Mean

234

360

374

687

300

328

753

1,604

833

322

151

491

Sept.

152

150

151

150

148

147

148

149

153

153

149

148

146

145

143

142

146

166

177

168

161

158

152

149

148

145

144

144

143

144

Runoff in 

acre-feet

14,400

21,420

22,990

497,300

0.8,440

18,220

26,500

44,820

98,640

49,560

19,800

11,750

8,960

355,500
KERN RIVER BASIN

Kern River below Isabella dam site, Calif.

195

Location.- Water-stage recorder, lat. 35°39", long. Ii8°29', in sec. 19, T. 26 S., R. 

33 E., immediately downstream from dam site, 1.2 miles southwest of Isabella and 

1.3 miles downstream from South Fork. Altitude ofjgage, about 2,400 feet (from 

topographic map).

Drainage area.- 2,080 square miles.

Records available.- April 1945 to September 1947.

Extremes.- Maximum discharge during year, 3,160 seconi-feet Nov. 23 (gage height, 8.75 

reet); minimum, 7.8 second-feet Aug. 29.

1945-47: Maximum discharge, 3,420 second-feet May 4, 1945 (gage height, 8.78 feet); 

minimum, that of Aug. 29, 1947.

Remarks.- Records good. Borel Canal (see p. 198) diverts 5 miles above the station; 

many diversions above station for irrigation.

Rating table, water year 1946-47 (gag« height. In feet, 

and discharge, In second-l'eet)

(Shifting-control method used Oct. 1 to Nov. 2O,

July 22 to Sept. 30)

3.7

3.8

3.9

4.O

4.1

4.2

7.0

9.0

12

16

21

28

4.3

4.4

4.6

4.8

5.0

5.3

37 5.

48 6,

6

0

76 6J5

113 7Jo

158 7j7

238

343

52O

8OO

1,130

1,770

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.

16

16

17

17

16

15

17

17

17

17

16

16

16

16

16

17

17

17

16

16

16

16

17

16

15

15

15

17

17

17

17

Nov.

17

17

17

17

17

17

17

17

17

17

17

17

20

25

33

36

39

44

46

178

197

117

1,25O

1.26O

421

241

192

168

158

149

-

Dec.

140

133

128

128

128

186

202

153

142

135

133

133

128

126

124

117

115

113

113

109

101

101

1O3

124

158

262

356

318

214

185

168

Jan.

158

156

142

135

142

142

140

133

131

131

131

131

126

117

113

109

105

107

99

99

99

97

97

95

95

99

101

107

103

95

103

Feb.

107

107

105

105

105

105

101

103

105

111

105

107

109

105

97

99

99

105

103

101

101

99

95

81

76

73

66

72

-

-

-

Month

October ....................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

Ifsav «ay. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

66

62

68

68

61

54

42

37

35

32

3O

30

28

29

27

27

27

26

27

30

93

168

205

260

198

135

126

163

217

257

277

Apr.

316

328

27C

244

226

222

20E

177

198

EOZ

192

214

235

284

359

452

550

598

625

740

818

728

6O8

515

485

500

50C

49E

48C

47J

-

Seoondfoot-days

5O6

4,776

145,917

3,638

2,747 

2,905

12,243

35,183

9,452

507.8 

343.2

393 3

77,472.3

Ha

May

630

1,000

1,360

1,480

1,550

1,710

1,690

1,560

1,310

1.1OO

951

830

788

752

686

728

906

1,010

1,110

1.26O

1,350

1,410

1,53O

1,490

1,410

1,270

1.10O

938

752

758

764

imun

1 -7

1 OCrt

356

2,73O

158 

111

277

818

1,710

625 

20

14

15

1,710

June

625

592

555

466

404

375

379

475

43O

43O

461

430

367

383

434

430

363

284

298

332

324

214

128

78

57

37

32

27

22

20

-

Minimum

15

17

101

13

95

66

26

177 

630

20

9 c

8. f

9.6

8.8

July

18

17

17

16

18

20

20

20

20

19

19

19

19

18

18

18

16

13

13

13

14

17

17

17

17

16

16

13

10

9.9

9.9

Aug.

10

9.9

10

9.6

9.6

9.9

11

14

14

13

12

8.8

9.0

9.6

10

10

9.9

9.6

9.6

9.9

10

13

14

14

13

13

13

13

11

9.9

9.9

Mean

16.3

159

154

40O

117 

98. 1

93.7

1,135 

315

16.4

11.1

13.1

212

Sept.

9.9

9.9

9.6

9.9

11

14

14

13

13

13

13

13

13

13

13

13

13

14

14

14

15

15

14

14

14

14

14

14

14

15

Runoff in 

acre-feet

1,000

9^470

£o9 , 4OU

7,220

5,450 

5,760

24,280

18J750

1,010 

681

78O

153,700
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 Bakersfield. Altitude of gage, about 470 feet (from topographic map).

Drainage area.- 2,420 square miles.

Records available.- October 1893 to September 1947.

Average discharge.- 52 years (1893-1906, 1903-47), 990 second-feet.

Extremes.- Maximum discharge during year, 3,814 second-feet Nov. 24 (gage height, 4.15 

I'eet); minimum, 135 second-feet Sept. 18.

1896-1947: Maximum discharge, 21,701 second-feet Mar. 9, 1943 (gage height, 10.87 

feet); minimum, 57 second-feet (regulated) in November 1924.

Remarks. - Four power plants and many diversions above statioTi for irrigation.

Cooperation.- Complete record, except runoff in acre-feet and annual figures, furnished 

t»y Kern County Land Co.

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

16I'/

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

203

243

312

293

270

264

283

282

283

282

286

279

267

260

251

248

257

261

276

273

263

265

268

268

254

248

250

247

236

232

234

Nov.

234

241

250

250

246

239

241

255

263

264

262

266

297

321

330

310

319

331

339

325

632

658

570

2,439

1,426

1,087

991

917

812

698

-

Dec.

633

583

559

547

546

606

755

756

684

637

603

587

582

569

561

553

544

534

510

499

498

494

483

491

563

693

831

914

824

732

679

Jan.

628

638

630

576

552

571

571

555

532

525

525

520

515

518

495

472

472

472

472

457

464

474

467

463

462

448

446

436

448

445

454

Feb.

48"

487

482

482

482

481

48C

487

488

491

55C

531

515

522

527

530

520

516

516

518

518

520

523

495

493

504

519

535

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

May........................................

July .......................................

September ..................................

Water year 1946-47 ......................

Mar.

532

524

553

560

535

511

502

476

471

463

456

453

456

462

491

505

512

523

549

584

600

643

730

767

777

746

717

727

774

832

880

Apr.

912

927

932

924

854

831

809

766

728

755

781

784

802

826

895

982

1,113

1,245

1,261

1,267

1,411

1,405

1,285

1,177

1,123

1,128

1,140

1,121

1,121

1,123

-

Secondfoot-days

19,050

328,053

30 428

4,608

227,858

May

1,135

 1,298

1,780

2,072

2,172

2,342

2,455

2,353

2,203

1,923

1,723

1,564

1,472

1,427

1,371

1,290

1,416

1,610

1,706

1,808

1,949

2,014

2,097

2,226

2,146

2,005

1,919

1,737

1,518

1,436

1,455

Maximum

956

3,814

890

243

171

3,814

June

1,385

1,279

1,256

1,191

1,108

1,057

1,050

1,072

1,132

1,104

1,101

1,120

1,089

1,060

1,078

1,094

1,049

983

890

896

916

913

804

716

677

650

633

629

618

579

Minimum

480

192

1 125

135

135

July

545

505

476

471

460

442

427

421

403

378

366

354

349

328

322

312

303

309

307

304

294

288

284

274

272

271

259

251

238

226

207

Aug.

213

219

216

215

225

212

197

196

202

207

226

226

208

198

198

201'

202

195

197

.197

194

197

199

195

190

181

180

178

183

182

179

Mean

615

899

507

343

154

624

Sept.

156

150

149

149

152

155

165

156

155

156

154

151

147

144

141

147

144

136

142

158

162

169

166

167

166

159

157

158

149

148

Runoff in 

acre feet

37,790

650,700

9,140

451,900

Note.- Figures of maximum and minimum discharge as shown for each month are instantaneous values.
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. 

'6'd 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 1947. 

Average discharge.- 26 years, 370 second-feet.

Extremes.- Maximum daily discharge during year, 605 second-feet Apr. 15; minimum daily, 

J.4U second-feet Sept. 16.

1921-47; Maximum daily discharge, 689 second-feet May 28, 1938; no flow at times.

Remarks.- Records excellent. Canal diverts from left bank of Kern River in sec. 12, T. 

2T~ST, R. 32 E. Water is used for power and returned to river 8 miles below station.

Cooperation.- Water-stage recorder graph and thirteen discharge measurements, furnished by 

southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1946 to September 1947

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.

237

290

251

254

257

260

259

253

250

238

232

230

227

224

222

228

238

235

228

227

223

221

220

219

216

215

214

211

208

203

206

Nov.

207

209

204

201

203

206

211

213

211

203

213

227

245

235

227

234

238

236

255

320

311

309

334

334

334

336

337

338

338

339

-

Dec.

339

337

332

337

363

500

463

410

379

367

364

353

346

350

344

339

329

322

309

316

311

309

309

376

455

486

507

419

378

343

341

Jan.

372

345

308

328

346

334

324

315

313

314

318

308

303

253

262

278

291

287

282

286

280

278

276

276

275

277

279

283

242

300

293

Feb.

291

286

285

287

287

292

294

300

328

352

334

333

347

344

344

342

348

333

333

331

329

327

330

338

351

356

358

349

_

_

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March ......................................

April ......................................

May........................................

June .......................................

July... ....................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

345

413

381

363

365

352

350

348

334

339

353

359

366

380

395

418

426

464

462

471

466

482

546

513

491

482

510

533

527

530

533

Apr.

547

531

523

493

494

476

471

480

496

484

509

558

578

0593

0605

0602

0593

0588

592

591

591

591

590

593

593

591

591

590

588

590

-

Secondfoot-days

7,196

7,808

11,433

149,582

9,226

9 129

13J297

16,712

18,489

17,695

9,946

5,885

4,459

131,275

May

591

592

591

591

590

591

595

597

595

592

592

596

595

596

595

593

593

594

598

601

601

600

599

601

602

601

602

602

601

601

601

Maximum

290

339

507

639

372

358

546

605

602

602

471

223

175

605

June

600

600

599

599

598

598

598

598

598

598

598

597

597

597

597

598

598

600

600

602

601

601

598

594

589

575

579

561

532

495

-

Minimum

203

201

309

0

242

285

334

471

590

495

217

154

140

140

July

471

460

447

428

409

401

397

387

372

361

358

338

328

319

311

305

299

295

288

282

283

277

269

261

251

239

231

225

220

217

217

Aug.

213

212

223

219

204

198

196

197

211

219

217

201

199

210

205

194

190

190

190

184

179

179

175

169

163

161

160

158

158

157

154

Mean

232

260

369

410

298

326

429

557

596

590

321

190

149

360

Sept.

150

148

149

148

146

145

146

147

151

151

147

146

144

143

141

140

144

164

175

166

159

156

150

147

146

143

142

142

141

142

~

Runoff in 

acre feet

14,270

15,490

22,680

296,700

18,300

18,110

26,370

33,150

36,670

35 , 100

19,730

11,670

8,840

260,400

o Backwater; discharge computed on basis of venturi meter record at powerhouse.

854211 O - 49 - 14
198 KERN RIVER BASIN

Borel Canal at Tilley Creek, Calif.

Location.- Water-stage recorder, lat. 35°42', long. 118°27', in NW£ sec. 4, T. 26 S., R. 

33 Ji., at point where canal crosses Tilley Creek, 0.8 mile south of Kernville. Altitude of gage, about 2,570 feet (from topographic map).

Records available.- January 1910 to September 1914, October 1925 to September 194V. 

Average discharge.- 22 years (1925-47), 364 second-feet.

Extremes.- Maximum daily discharge during year, 575 second-feet Apr. 17, May 4; minimum 

daily, 130 second-feet Sept. 14, 17, 30.

1925-47: 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, fit 

which point water is returned to Kern River.

Cooperation.- Water-stage recorder graph and 19 discharge measurements, furnished by 

Southern California Edison Co., obta'nod in connection with a Federal Fower 

Commission project.

Discharge, in second-feet, water year October 1946 to September 1947

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.

210

296

263

262

261

269

259

257

258

248

239

235

234

231

Z28

234

247

245

237

236

235

232

230

228

2Z6

223

225

224

222

217

218

Nov.

224

227

224

219

217

218

227

250

228

223

226

236

270

273

249

257

266

266

265

445

463

355

459

532

552

546

521

491

458

435

-

Dec.

415

404

390

381

404

519

540

485

448

425

424

414

401

403

397

388

376

365

355

355

353

350

350

410

498

554

552

536

482

430

399

Jan.

437

421

371

376

392

388

377

365

361

358

363

360

357

313

307

306

333

330

322

323

321

316

316

315

315

315

318

325

280

340

336

Feb.

335

329

328

327

328

332

335

341

343

411

387

376

388

387

386

393

393

381

376

372

371

36S

369

377

391

399

403

399

_

_

-

Month

December ...................................

Calendar year 1946 ......................

un*>

September ..................................

Water year 1946-47 ......................

liar.

38'1

442

435

414

405

394

382

388

381

378

391

404

404

416

432

455

465

490

522

507

486

490

490

486

519

540

551

552

561

561

560

Apr.

561

565

563

546

558

537

531

536

545

548

558

56B

568

568

568

572

575

572

571

572

571

571

571

571

571

571

571

571

572

571

-

Secondfoct-days

13,203

161,611

4,133

136,929

May

572

574

574

575

574

574

572

574

572

572

572

572

572

574

574

574

574

574

574

571

571

572

572

571

571

568

570

570

568

568

567

Maximum

552

554

604

575

570

161

575

June

570

570

570

570

570

570

568

568

568

568

568

568

570

570

568

568

570

568

568

570

568

570

570

570

570

570

570

558

538

502

-

Minimum

350

18

531

502

130

130

July

471

457

446

427

410

399

397

387

364

359

356

341

330

322

311

301

293

289

280

270

274

267

262

256

245

238

228

219

214

204

210

Aug.

208

203

210

214

202

189

186

189

201

210

217

196

192

200

200

190

186

186

179

178

178

174

173

166

162

154

153

149

147

147

145

Mean

42 S

443

344

563

572

138

375

Sept.

142

140

136

134

134

134

133

138

139

138

136

135

135

130

131

131

130

140

161

156

149

147

143

142

136

132

135

134

132

130

-

Runoff in 

acre-feet

26,190

320,600

33,510

8,?UO

?71,600
KERN RIVER BASIN 199

South Fork Kern River at Isabella, Calif.

Location.- Water-stage recorder,, lat. 35°40', long. 1180 28', in NW^ sec. 20, T. 26 S.,

 R. 33 E., at Isabella, 0.2 mile upstream from mouth. Datum of gage is 2,484.3 feet 

above mean sea level (river-profile survey).

Drainage area.- 985 square miles.

Records available.- October 1910 to September 1913, January 1929 to September 1947.

Average discharge.- 18 years (1929-47), 116 second-feet.

Extremes.- Maximum discharge during year, 748 second-feet Nov. 24 (gage height, 4.59 

reet); minimum, 5.8 second-feet (regulated) Aug. 2.

1929-47: Maximum discharge, 4,100 second-feet Feb. 7, 1937, from rating curve extended 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 flow.

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

16

17

18

21

22

23

24

25

26

27

28

29

30

31

Oct.

13

12

13

13

12

11

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

13

13

13

12

11

12

13

13

13

14

Nov.

14

14

14

13

14

14

14

14

14

14

14

15

16

27

36

39

45

49

51

76

173

113

136

541

249

173

149

143

134

130

-

Dec.

124

122

120

120

124

139

158

147

134

126

124

126

120

116

113

107

105

104

104

97

92

90

93

118

161

276

306

262

202

168

147

Jan.

141

136

124

115

124

124

124

116

116

115

116

116

111

104

100

95

90

95

87

86

87

86

86

87

86

92

92

100

93

87

97

Feb.

100

100

98

98

98

97

97

97

98

104

98

100

105

102

92

95

95

104

100

98

100

97

95

76

71

67

61

67

_

_

-

Month

December. ..................................

Calendar year 1946 ......................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

61

56

62

62

57

47

32

28

25

23

21

20

19

20

20

20

19

19

19

20

61

130

132

183

168

134

124

170

213

262

294

Apr.

314

326

272

246

227

221

199

165

199

207

191

196

202

193

168

170

130

109

90

88

102

120

134

141

163

240

269

302

280

255

-

Seoondfoot-days

393

4,345

40,327.6

3 £28

2 521

Q7A

346.7

27,677.7

May

230

202

188

188

180

165

154

149

158

161

173

158

130

122

122

130

124

130

132

128

124

124

122

107

104

97

105

95

95

92

80

Maximum

541

306

606

294

230

13

541

June

74

86

75

62

51

52

46

36

32

30

25

23

23

22

21

19

18

16

16

16

14

14

14

16

13

13

12

12

12

11

-

Minimum

90

9.0

7.8

6.9

July

11

12

11

11

14

16

15

14

14

14

14

14

15

15

14

16

13

10

11

12

14

16

16

16

16

16

15

11

9.0

8.7

8.7

Aug.

9.0

8.4

8.7

8.4

8.4

8.1

10

14

14

13

9.4

6.9

7.2

8.7

9.0

8.7

7.5

7.5

7.5

8.1

8.7

13

14

14

13

13

13

12

10

9.4

9.0

Mean

140

110

138

11.6

75.8

Sept.

8.7

8.4

7.8

7.8

10

13

13

12

11

12

12

12

12

12

12

12

12

12

12

12

13

13

13

12

12

12

12

12

12

12

-

Runoff in 

acre- feet

8,620

80,000

688

54,900

TULARE LAKE BASIN 

Tulare Lake in Kings County, Calif.

Location.- Water-stage recorder, lat. 36°05', long. 119°4'9', at northeast corner sec. 29,

 T. 'Jl 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 1947. March 1906 to September 1920 (in-

 complete) at several other sites, at different datum.

Extremes.- 1906-47: Maximum elevation, 196.8 feet June 27, 28, 1941; lake dry or prac-

 tically so during parts of 1906, 1914, 1915-16, 1919, 1937, 1946; lake dry during 

entire years 1920-22, 1924-36, 1947.

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 the entire 1947 water year.

Cooperation.- Record furnished by Tulare Lake Basin Water Storage District.
200 TULARE LAKE BASIN

White River near Ducor, Calif.

Location.- Water-stage recorder, lat. 35°49', long. 118°56', in NE£ sec. 27, T. 24 S., 

K. 2M 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). Prior to Oct. 1, 1946, at site 500 feet upstream, at different 

datum.

Records available.- October 1944 to September 1947.

Extremes.- Maximum discharge during year, 71 second-feet Nov. 23 (gage height, 2.11 feet); 

no now for several months.

1944-47: 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. No regulation or diversion.

Cooperation.- Four discharge measurements furnished by Bureau of Reclamation.

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. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

12

17

6.6

4.7

3.8

3.3

3.1

2.9

-

Dec.

2.6

2.6

2.6

2.7

2.9

12

22

10

7.3

5.8

5.4

5.2

4.7

4.2

4.2

4.2

4.0

3.8

3.6

3.6

3.6

3.6

3.5

3.6

6.1

5.6

18

21

10

8.2

7.1

Jan.

6.3

5.4

5.2

4.9

4.9

5.2

4.7

4.5

4.5

4.5

4.5

4.5

4.5

4.2

4.0

3.8

4.0

4.2

4.0

3.8

4.0

3.8

3.8

4.0

3.6

3.8

4.0

4.5

4.5

4.5

4.5

Feb.

4.5

4.5

4.2

4.2

4.2

4.2

4.0

3.6

3.8

6.3

6.6

5.4

5.2

4.9

4.7

4.7

5.8

6.6

5.8

5.6

5.4

4.9

4.7

4.7

4.7

4.7

4.7

4.9

_

-

Month

December. ...............................

Calendar year 1946 .................. ...

January ................................

March. .................................

April ......................................

May. .......................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

4.7

6.6

9.3

9.3

8.5

7.4

6.6

6.3

6.1

5.4

5.4

5.4

5.2

4.7

4.2

4.2

4.2

4.0

1.0

5.2

5.8

5.4

5.4

7.1

5.6

4.9

4.2

4.0

4.0

4.0

4.0

Apr.

4.0

4.2

6.0

8.5

6.8

6.1

5.8

5.4

5.8

6.1

5.4

5.2

4.7

4.5

4.2

4.0

3.8

3.8

3.6

3.3

3.1

3.3

3.3

2.9

2.7

4.2

4.2

4.2

3.8

3.3

Secondfoot-days

203.7

2,057.9

136.6

34 0

3 ^

0

875.9

May

2. ,

2.4

1.3

1.0

.9

.7

.7

.7

2.0

2.9

2.4

2.1

2.1

2.1

1.9

1.5

1.0

.7

.3

0

0

0

0

0

 0

0

0

.7

1.8

1.2

.9

Maximum

22

58

6.3

9.3

2.9

0

0

22

June

0.7

.7

.6

.4

.4

.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

-

Minimum

0

2.

0

3.

4.

0

0

0

0

July Aug.

Mean

0

1.79

3 6.57

5.64

5 4.41

3 5.52

1.10

0

0

0

2.40

Sept.

Runoff in 

acre-feet

0

106

404

4,080

271

273

339

270

67

6.3

0

0

0

1,740
TULARE LAKE BASIN 201

North Fork of Middle Fork Tule River-near Springville, Calif.

Location . - Water-stage recorder, lat . 36°11' , long. 118° 42", in sec. 23, T. 20 S., R. 30 

'60 K. , I mile upstream from mouth and 7.8 miles northeast of Springville. Altitude of 

gage, about 2,850 feet (from topographic map).

Drainage area.- 39.5 square miles.

Records available.- November 1939 to September 1947. January 1909 to December 1912 at

site v miles upstream .

Extremes .- Maximum discharge during year, 545 second- feet Nov. 23 (gage height, jb.28 

reet) ; minimum, 0.3 second- foot on many days in August and September.

1939-47: 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 good except those below 4 second- feet, which are fair. Pacific Gas & 

Electric Co. conduit near Springville diverts 2.5 miles upstream (see p. 203).

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., 

ootained in connection with a Federal Power Commission project.

Rating table, water year 1946-47 (gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-10, Mar. 23 to Apr. 17, Aug. 1 to Sept. 30)

1.8 0.1 2.2 3.2 2.8 18

1.9 .5 2.3 4.6 3.0 28

2.0 1.2 2.4. 6.4 3.2 38

2.1 2.1 2.6 11 3.5 58

3.8 86

4.1 128

4.3 168

4.6 264

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.

5.0

5.0

5.0

5.0

5.1

5.1

5.0

5.0

5.0

4.8

4.8

5.0

5.0

5.0

5.1

6.8

5.7

5.5

5.5

5.3

5.1

5.1

5.3

5.3

5.1

5.1

5.1

5.1

5.1

5.1

5.1

Nov.

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.3

5.3

5.3

5.3

5.1

5.1

19

47

7.9

7.1

248

31

10

8.4

7.5

6.8

6.4

6.2

-

Dec.

6.0

6.0

5.9

6.4

8.4

13

11

9.6

8.9

8.2

7.9

7.7

7.3

7.1

6.6

6.4

6.2

6.0

6.0

6.0

5.9

5.9

6.0

7.3

7.9

7.3

20

12

9.6

8.4

7.9

Jan.

7.5

7.1

6.8

6.6

6.4

6.4

6.2

17

26

26

14

6.6

6.4

6.2

6.2

6.0

6.0

6.0

6.0

6.0

6.0

5.9

5.9

5.9

5.9

5.9

5.9

6.4

6.0

6.0

6.0

Feb.

6.0

6.0

6.0

6.0

5.9

5.9

5.9

5.9

8.0

8.4

7.1

6.6

6.6

6.4 6.4

6.6

8.9

7.9

7.5

7.3

7.1

6.8

6.8

6.6

6.6

6.4

7.5

7.1

«

_

-

Month

October. ....................... ...........

November ...................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April....... ...............................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

7.1

16

10

10

8.9

8.4

.9

.9

.7

.7

.9

.5

.3

.1

6.8

6.8

6.6

6.6

6.8

6.8

6.8

6.6

8.6

7.1

6.6

6.4

6.4

6.8

6.6

6.6

6.6

Apr.

6.6

7.1

8.2

7.5

7.1

7.3

7.7

7.9

8.6

8.4

8.4

7.9

7.7

7.9

9.1

13

18

17

16

18

14

10

7.7

7.1

7.1

7.1

7.5

7.1

6.8

6.6

May

7.

20

27

25

26

28

21

17

11

7.

6.

6.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

8.

6.

5.

5.

5.

Second- «, ,_ foot-days «a*i *

160. 2 6.8

497.9 248

248.8 20

5,514.0 248

251.2 26

190. 2 8.9

236.9 16

280.4 18

310.3 28

126.1 5.5

17.1 .7

15.0 .8

11.5 .5

2,345.6 248

7

7

2

0

9

9

7

5

5

3

3

3

3

3

3

1

1

0

1

6

9

9

7

June

5.5

5.5

5.5

5.5

5.5

5.5

5.3

5.3

5.3

5.3

.8

.6

.6

,5

.5

.5

.5

.5

.3

.3

4.3

4.3

4.2

4.2

4.2

3.2

1.0

.6

.5

.5

Minimum

4.8

5.1

5 . 9j

4.6

5 9

5 9

el4

6*6

5.0

.5

.4

.4

.3

.3

July

0.4

.4

.4

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

Aug.

0.5

.6

.6

.6

.5

.5

.5

.5

.6

.6

.5

.5

.5

.5

.5

.8

.4

.4

.4

.4

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

Sept.

0.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.3

.3

.4

.4

.5

.5

.5

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

-

 _._ Runoff in Mean acre-feet

5.17 318

16.6 988

8.03 493

15.1 10,940

8

6.79 377

7.64 470

9.35 556

10.0 615

4.20 250

.55 34

.48 30

. 38 23

6.43 4,650
202 TOLARE LAKE BASIN 

Tule River near Porterville, Calif.

Location.- Water-stage recorder, lat. 36°05', long. 118°55', in NW£ sec. 25, T. 81 S., 

H. 2B 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 1947.

Average discharge.- 46 years, 146 second-feet.

Extremes.- Maximum discharge during year, 2,390 second-feet Nov. 23 (gage height, 7.69 

reet); no flow part of Sept. 13.

1901-47: 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 above 5 second-feet and fair below. Several small diversions 

a&ove station for irrigation. Power is developed on Middle Fork and tributaries.

Rating table, water year 1946-47, except period of backwater Oct. 17-29 

(gage height, in feet, and discharge, in second-feet)

1.3

2.7

 2.3 

2.7

3.0

3.4 

3.8 

4.3

4.9 

5.7

177

263

365

514

717

1,020

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.

11

28

16

18

14

15

16

14

14

13

12

9.7

7.5

6.7

5.9

14

20

19

18

16

14

14

14

16

15

14

15

16

16

16

16

Nov.

17

18

19

18

17

19

18

20

21

23

25

26

30

35

32

32

32

32

34

314

105

 69

1,000

419

181

133

116

102

93

86

-

Dec.

80

78

74

72

86

241

300

160

133

120

112

110

106

104

100

96

92

89

85

82

79

75

75

89

120

123

469

253

160

133

118

Jan.

112

106

96

93

92

90

87

82

80

80

80

79

79

74

73

70

70

70

69

69

68

68

66

66

65

65

65

72

69

66

66

Feb.

65

66

65

64

64

64

65

66

69

117

96

87

89

89

87

85

108

106

94

93

92

90

89

89

89

87

89

94

-

_

-

Month

December. ..................................

Calendar year 1946 ......................

May. .......................................

September. ..................................

Water year 1946-47 ......................

Mar.

90

175

151

151

133

122

114

114

114

108

114

114

111

108

104

100

99

99

105

111

106

105

120

122

111

105

104

105

108

102

a98

Apr.

93

93

108

106

a!02

alOO

98

102

96

100

98

98

94

96

102

108

114

117

114

112

111

102

96

89

86

85

96

96

89

87

-

Secondfoot-days

4,014

36,343.2

3.0

21,719.2

May

92

102

116

114

106

110

105

105

96

90

80

75

74

70

66

65

64

64

62

58

56

53

51

46

43

. 41

55

74

66

54

50

Maximum

469

1,000

.1

1,000

June

46

44

42

40

36

35

33

31

31

31

28

25

22

20

17

16

14

12

12

9.2

7.9

7.5

6.3

5.2

4.5

3.2

2.7

2.2

1.4

1.3

-

Minimum

72

1 ^

.1

.:

July

0.8

0.8

.9

.9

.5

.5

.4

.4

.3

.3

.3

.3

.4

.5

.5

.5

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.3

.2

Aug.

0.2

.2

.1

.1

.1

.1

.1

.1

.2

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Mean

129

99.6

19 5

.12

.10

59.5

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 

acre-feet

6,960

72,080

6.0

43,070

Peak discharge.- Nov. 20 (1O:30 a.m.) 746 sec.-ft'.; Nov. 23 (3:00 p.m.) 2,390 sec.-ft.; 

(1:00 a.m.] 546 sec.-ft.; Dec. 27 (3:00 p.m.) 1,160 sec.-ft. 

a No gage-height record; discharge interpolated.
TULARE LAKE BASIN 203

Pacific Gas & Electric Co. conduit near Springville, Calif.

Location.- Water-stage recorder, lat. 36°12', long. 118 0 39', in NVf£ sec. 18, T. 20 S.,

K. 31 K., 0.5 mile downstream from intake and 10 miles northeast of Springville.

Altitude of gage, about 4,000 fe'et (from topographic map).

Records available.- October 1939 to September 1947.

Extremes.- Maximum daily discharge during year 64 second-feet May 3-6; minimum daily, 

1.4 second-feet Jan. 10.

1940-47: Maximum daily discharge, 68 second-feet Dec'. 25, 1945; no flow Jan. 10, 

1945.

Remarks.- Records good. Conduit diverts from left bank of North Fork of Middle Fork Tule 

Hlver in sec. 18, T. 20 S., R. 31 E. Water is used for power development at Tule 

River powerhouse of Pacific Gas & Electric Co. 3.5 miles downstream and is then returned to river.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1946 tc September 1947

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.

19

13

13

13

14

14

13

12

12

12

11

11

11

11

11

15

13

12

12

11

11

11

11

11

11

11

11

11

11

11

11

Nov.

11

11

11

11

11

11

11

11

11

11

11

11

12

12

12

12

11

11

19

40

21

19

46

6O

41

35

33

30

28

26

-

Dec.

25

24

23

25

36

43

35

31

29

28

27

28

28

28

27

25

24

23

22

22

21

21

20

30

35

30

35

30

27

25

24

Jan.

24

23

22

22

22

22

21

8.7

1.3

1.4

15

20

2O

18

a!8

a!8

a!8

18

17

17

17

17

17

17

17

17

17

16

18

18

18

Feb.

18

18

18

18

18

18

18

19

22

25

23

24

26

25

25

24

26

24

25

25

24

24

24

25

26

25

26

25

_

_

-

Month

October. ...................................

November. ........................ .........

December ....................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

Ub« May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

24

41

32

30

29

27

26

27

26

27

28

30

31

32

32

32

32

34

34

33

33

34

42

36

35

35

36

39

37

36

35

Apr.

36

36

38

35

35

35

35

36

37

37

39

43

48

54

59

S2

63

63

62

63

62

6O

56

52

49

48

48

47

46

50

Secondfoe t-days

374

600

851

11,367.9

535.9

638

1,005

1 434

i',eoe

666

469

383

336.4

8,898.3

May

58

63

64

64

64

64

63

62

81

58

52

50

49

47

46

49

53

53

53

53

51

51

50

46

43

40

47

43

39

36

34

Maximum

19

60

43

64

24

26

42

63

64

33

18

14

12

64

June

33

32

31

30

28

27

27

27

26

25

24

22

22

21

20

20

20

19

18

18

17

17

17

16

16

18

19

19

19

18

Minimum

11

11

20

9.1

1.4

18

24

35

34

16

13

12

9.4

1.4

July

18

17

17

17

17

a!7

a!6

a!6

a!6

a!6

a!6

a!6

a!6

a!5

a!5

a!5

a!5

a!4

a!4

a!4

a!4

14

14

14

14

14

14

14

14

13

13

Aug.

14

14

14

13

13

12

12

12

13

13

13

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

Mean

12.1

2O. O

27.5

31.1

17.3

22.8

32.4

47.8

51.8

22.2

15.1

12.4

11.2

24.4

Sept.

11

11

11

11

11

11

11

11

12

12

11

12

12

11

11

11

12

12

12

12

11

11

11

11

11

11

11

11

11

9. '4

-

Runoff in 

acre-feet

742

1,190

1,690

22,560

1,060

1,270

1,990

2,84O

3,190

1.32O

930

7 SO

667

17,650

a No gage-height record; discharge computed on basis of powerhouse output.
TULARE LftKE BASIN

South Pork Tule River near Success, Calif.

Location.- Water-stage recorder, lat . 36°03" , long. 118° 51', in NWij sec. 4, T. 22 S., R. 

2V E. , 4 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 1947. 

Average discharge.- 17 years, 46.0 second-feet. 

Extremes .- Maximum Maxi discharge during year, 550 second-feet Nov. 23 (gage height, 3.49 

; no flow for several months .

Remarks.- Records good. Several diversions above station for irrigation. 

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

0.40 

.45 

.50

0.65 

.70 

.75 

.80 

.9

.95 

1.4 

2.5

1.0

1.1 

1.3

1.5 

1.7

4.2

7.8

18

1.9 

2.1 

2.3 

2.5 

2.7

100

138

186

242

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

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

as

a6

3.8

5.2

5.2

5.0

3.8

3.1

2.9

2.8

2.8

2.5

2.2

2.0

1.1

3.0

5.0

3.6

3.4

3.1

2.9

2.8

2.8

2.8

2.8

2.9

3.2

3.4

3.6

3.6

4.0

Nov.

4.2

4.0

4.0

3.8

3.6

3.6

3.6

2.9

4.2

4.7

5.2

6.0

6.4

8.8

7.8

7.3

7.3

6.8

7.3

63

27

17

219

87

38

28

22

21

19

18

-

Dec.

16

15

15

15

17

61

68

3£

32

29

26

26

26

25

25

23

22

22

2C

20

19

19

19

24

33

30

102

64

41

34

30

Jan.

27

26

23

22

22

22

22

20

2C

20

19

19

19

16

18

16

18

17

16

16

16

15

15

15

14

14

14

16

15

16

Feb.

15

15

15

16

16

16

16

16

. 17

3C

24

22

23

22

20

19

26

26

23

23

23

22

22

22

22

21

22

25

-

_

H

Month

December. ..................................

Calendar year 1946 ......................

April. .....................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

23

51

44

44

38

34

32

31

31

30

30

30

27

26

24

23

23

23

25

26

26

25

35

34

28

25

24

24

25

24

23

Apr.

23

23

30

27

26

26

26

26

28

26

23

22

21

20

20

20

20

20

20

20

20

20

19

18

17

18

19

22

18

16

Secondfoot days

956

9,436.6

579

0

4,771.6

May

15

14

14

13

12

12

12

12

13

12

11

11

10

9.7

9.7

9.7

8.3

7.8

6.8

4.0

3.8

3.6

3.4

3.1

2.8

2.8

6.0

14

8.8

6.8

6.4

Maximum

103

227

0

219

June

6.0

5.?

5.2

5.2

4.7

4.5

4.2

4.0

4.0

3.8

3.6

3.2

2.9

2.6

2.5

2.2

1.4

.2

.1

.1

.1

.1

.3

.1

0

0

0

.1

0

0

0

Minimum

15

0

0

0

July Aug.

Mean

30.8

25.9

0

13.1

Sept.

Runoff in 

acre-feet

1,310

1,900

18,730

1,120

1,800

552

0

0

9,480

Peak discharge.- Nov. 20 (12 m.) 150 sec.-ft.; Nov. 23 (3 p.m.) 550 sec.-ft.; Dec. 7 (1 a.m.) 128 

sec.-ft.; Dec. 27 (3 p.m.) 216 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range in stage and knowledge of 

local conditions.
TULARE LAKE BASIN 205

Kaweah River near Three Rivers, Calif.

Location.- Water-stage recorder, lat. 36°24', long. 118°5V, in SW^ sec. 33, T. 17 S., 

K. -m hi. , 2.5 miles dovmstream 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 1947. April 1903 to January 1936 at site 

2 miles upstream.

Average discharge . - 44 years, 574 second-feet.

Extremes . - Maximum discharge during year, 10,200 second-feet Nov. 23 (gage height, 10.25 

feet); minimum, 13 second-feet Sept. 29 (gage height, 0.76 foot).

1903-47: 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.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

O.8 15 1.8 156 4.5 1,380 

.9 22 2.0 209 5.0 1,750 

1.0 30 2.4 331 5.5 2,180 

1.1 40 2.8 476 6.0 2,680 

1.2 50 3.2 655 6.5 3,280 

1.4 75 3.6 845 7.0 3,960 

1.6 111 4.0 1,060 7.4 4,550

. 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.

214 

192 

96 

100 

96

117 

128 

115 

103 

94

89 

84 

72 

72 

69

102 

128 

105 

96 

87

82 

77 

75 

74 

71

68 

68 

67 

65 

64 

62

Nov.

62 

61 

60 

58 

57

57 

56 

59 

59 

59

58 

61 

68 

78 

74

74 

74 

74 

100 

1,490

356 

243 

4,490 

1,440 

709

534 

452 

407 

362 

334

Dec.

315 

299 

286 

280 

530

1,090 

789 

538

452 

407

390 

376 

358 

358 

345

325 

309 

293 

280 

277

267 

261 

258 

286 

472

494 

1,070 

596 

444 

382 

358

Jan.

355 

321 

296 

293 

289

286 

273 

264 

264 

261

267 

261 

258 

231 

231

220 

226 

223 

212 

215

215 

215 

215 

215 

217

217 

223 

243 

215 

231 

229

Feb.

229 

226 

223 

223 

223

226 

229 

234 

249 

368

305 

289 

379 

331

315

312 

440 

368 

328 

334

321 

315 

a31O 

a315 

a320

a 320 

a315 

a31o

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

aber. ..................................

lendar year 1946 

ary

st... ..................................

ember. .................................

ter year 1946-47 ......................

Mar.

a3oo 

a 500 

a410 

a380 

372

338 

334 

338 

325 

334

348 

348 

355 

368 

372

390 

390 

414 

418 

418

407 

436 

565 

507 

456

452 

489 

524 

511 

480 

472

Apr.

1 

1 

1 

1 

1

1

Seoondfoot days

2,932 

12,066 

13,185

180,417

7,681 

8,357 

12,751 

21,507 

37,199 

13,285 

2,781 

1,185 

769

133,698

Peak discharge.- Nov. 20 (7 a.m.) 3,680 sec. -ft.: Nov

502 

464 

524 

476 

452

440 

429 

440 

436 

429

480 

578 

691 

825 

950

,050 

,140 

,110

,220 

,260

090 

922

785 

722 

668

628 

655 

682 

664 

795

May

1,240 

1,730 

,820 

,730 

,810

,830 

,690 

,480 

1,130 

950

820 

815 

950 

880 

815

1,080 

1,160 

1,190 

1,290 

1,260

1,210 

1,280 

1,340 

1,230 

1,150

1,040 

1,020 

890 

825 

830 

714

Maximum

214 

4,490 

1,090

4,490

355 

'440 

565 

1,260 

1,830 

736 

174 

49 

37

4,490

June

673 

736 

637 

610 

570

529 

624 

552 

596 

614

592 

485 

498 

502 

507

460 

400

400 

414 

422

351 

293 

267 

255 

240

234 

226 

212 

201 

185

Minimum

62 

56 

258

28

212 

223 

300 

429 

714 

185 

47 

31 

19

19

July

174 

161 

154 

146 

139

130 

124 

115 

109 

103

100 

96 

90 

89 

85

82 

77 

72 

68

64

51 

59 

58 

58 

57

56 

54 

53 

51 

49 

47

Aug.

47 

48 

48 

46 

43

41 

38 

39 

43 

49

46 

42 

39 

38 

37

36 

37 

36 

36 

34

34 

36 

36 

34 

32

31 

31 

33 

32 

32 

31

Sept.

28 

27 

26 

24 

24

24 

24 

24 

26 

28

26 

25 

24 

23 

22

23 

25 

37 

34 

31

29 

28 

26 

28 

21

24 

23 

24 

19 

22

u««,. Runoff in 

Mean acre-feet

94.6 5,820 

402 23,930 

425 26,150

494 357,800

248 15,240 

298 16,580 

411 25,290 

717 42,660 

1,200 73,780 

443 26,350 

89.7 5,520 

38.2 2,350 

25.6 1,530

366 265,200

23 (12 m.) 10,200 sec. -ft. j Dee. 6 (2 a.m.)

1,500 sec.-ft.; Dec. 27 (l p.m.) 2,050 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range In stage and records for 

nearby streams.
206 TUT.4RE LAKE BASIN

North Fork Kaweah River at Kaweah, Calif.

Location.- Water-stage recorder, lat. 36°29' , long. 118°5t>', in SE£ sec. 34, T. 16 S., 

K- 28 "E., 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 1947. October 1910 to October 1933 at 

sice i mile downstream.

Average discharge.- 36 years (1911-47), 101 second-feet.

Extremes.- Maximum discharge during year, 2,680 second-feet Nov. 23 (gage height, 6.69 

reetJ; minimum, 2.6 second-feet (regulated) Aug. 19.

1910-47: 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.

Rating tables, water year 1946-47 (gage height, in feet, and discharge, 

in second-feet)

Oct. 1 to Mar. 2 Mar. 2 to Sept. 30

1.7 11 2.7 87 4.5 725 1.2 3.1 1.7 10 2.5 

1-9 17 2.9 118 5.0 1,060 1.3 3.9 1.9 16 2.7 

2.1 28 3.2 180 5.3 1,300 1.4 4.9 2.1 28 2.9 

2.3 43 3.5 ?65 1.5 6.2 2.3 46 3.1 

2.5 62 4.0 460

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.

96 

34 

17 

16 

15

18 

16 

15 

14 

13

12 

11 

11 

11 

11

19 

21 

16 

15 

14

14 

13 

13 

13 

13

12 

12 

12 

12 

12 

12

Nov. n

12 

12 

12 

12 

12

12 

12 

13 

13 

13

13 

14 

15 

16 

15

15 

15 

15 

35 

574

94 

55 

1,260 

339 

162

120 

107 

96 

84

77

Dec.

74 

72 

67 

63 

204

328 

209 

149 

123 

108

104 

98 

92 

92

87

80 

77 

72 

68 

66

63 

62 

61 

72 

168

163 

292 

168 

123 

107 

98

Jan.

96 

87 

78 

77 

78

77 

72 

69 

68 

67

67 

S3 

64 

54 

57

55 

55 

54 

54 

55

54 

54 

53 

53 

53

53 

54 

58 

52 

55 

54

Feb.

55 

55 

55 

55 

54

55 

56 

57 

64 

90

74 

77 

131 

98 

88

86 

113 

94 

84 

86

82 

79 

78 

79 

82

80 

83 

78

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber........ ............................

mber

mber. ..................................

lendar year 1946 

ary

h. .....................................

1. ........................... .

st... ..................................

ember. .................................

ter year 1946-47 ......................

Mar.

75 

143 

118 

106 

99

90 

89 

92 

88 

90

96 

94 

94 

97 

96

99 

99

106 

106 

107

104 

110 

138 

125 

113

110 

113 

128 

130

125 

118

Apr.

116 

110 

125 

114 

110

108 

107 

107 

106 

101

106 

113 

119 

127 

135

142 

151 

148 

148 

148

142 

133 

124 

118 

116

113 

122 

125 

110

106

May

107 

114 

122 

124 

124

125 

120 

116 

110 

103

93 

86 

84 

79 

78

74 

72 

69 

66 

65

62 

61 

57 

54 

50

47 

80 

78 

61 

54 

56

June

50 

47 

44 

43 

42

39 

37 

36 

35 

34

31 

29 

27 

24 

22

22 

20 

20 

19 

19

18 

18 

17 

16 

16

16 

15 

15 

14 

14

forays «* «»* 

533 96 11 

3,244 1,260 12 

3,610 328 61

31,027.5 1,260 3.

1,940 96 52 

2,168 131 54 

3,298 143 75 

3,650 151 101 

2,591 125 47 

799 50 14 

275.7 13 5. 

145.4 6.1 3. 

114.6 5.?. 3.

22,368.7 1,260 3.

July

13 

12 

12 

12 

12

11 

11 

11 

10 

10

10 

10 

10 

9.8 

9.4

9.2 

9.0 

8.2 

7.4 

7.8

7.4 

6.4 

6.2 

6.7 

6.7

6.4 

6.4 

5.8 

6.6 

6.2 

6.1

68 

93 

122 

157

Aug.

6.1

6.1 

6.1 

6.1 

5.8

5.3 

5.2 

4.9 

4.6 

4.4

4.4 

4.0 

4.0 

4.6 

4.8

4.8 

4.6 

4.4 

3.4 

4.0

4.2 

4.4 

4.6 

4.6 

4.6

4.2 

4.0 

4.2 

4.2 

4.4 

4.4

Mean

17.2 

108 

116

9 85.0

62.6 

77.4 

106 

122 

83.6 

26.6 

3 8.89 

4 4.69 

2 3.82

2 61.3

Peak discharge.- Oct. 1 (12:30 p.m.) 395 see. -ft.; Nov. 20 (5:30 a.m.) 1,580 sec. -ft.;

Sept.

4.4 

4.2 

4.0 

3.8 

3.6

3.3 

3.3 

3.6 

3.7 

4.0

4.0 

3.9 

3.7 

3.4 

3.4

3.3 

3.2 

4.0 

5.2 

4.6

4.2 

4.2 

4.2 

4.0 

3.9

3.8 

3.6 

3.3 

3.4

3.4

Runoff in 

ao re-feet

1,060 

6,430 

7,160

61,540

3,850 

4,300 

6,540 

7,240 

5,140 

1,580 

547 

288 

227

44,360

Nov. 23

(1 p.m.) 2,680 sec.-ft.; Dee. 5 (11 p.m.) 582 sec.-ft.; Dec. 25 (11:30 p.m.) 250 see.-ft.; Dee. 27 

(12 p.m.) 492 see.-ft.
TULARE LAKE BASIN 207

Sand Creek near Orange Cove, Calif.

Location.- Water-stage recorder, lat. 36°37'35", long. 119°14'45", in NW£ sec. 15, T. 15 

S., R. 25 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 1947.

Extremes.- Maximum discharge during year, 82 second-feet Dec. 27 (gage height, 2.38 feet); 

no now for several months.

1944-47: 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 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. Nov. Dec.

0

0

0

0

0

0

4.8

1.1

.6

.6

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.6

1.6

7.8

31

9.8

4.8

3.4

2.8

Jan.

2.4

2.0

1.7

1.6

1.6

1.6

1.6

1.4

1.4

1.4

1.4

1.4

1.5

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.2

2.1

2.0

1.5

1.4

Feb.

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.4

1.9

1.4

2.0

3.4

2.2

1.9

2.1

16

6.9

4.4

3.7

3.0

2.8

2.4

2.3

2.2

2.0

1.8

1.7

_

_

-

Month

November. ..................................

December ...................................

Calendar year 1946 ......................

March. .....................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

1.6

3.3

2.5

2.4

1.9

1.6

1.6

1.6

1.5

1.4

1.4

1.4

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.2

1.2

1.1

1.2

1.2

1.0

1.0

.9

1.2

1.2

1.0

.9

Apr.

0.9

.9

1.2

1.0

.8

.8

.6

.7

.7

.6

.6

.6

.4

.4

.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

. 0

-

Seoondfoot-daya

74.2

304.3

0

249.3

May

Maximum

31

31

0

31

June

Minimum

o

0

0

0

July Aug.

Mean

2.39

.83

40

0

.68

Sept.

Runoff in 

acre-feet

147

604

0

494
208 TULARE LAKE BASIN

Kings River above North Pork, Ca-lif.

Location.- Water-stage recorder, lat. 36°52', long. 119°07', in Nj sec. 27, T. 12 S., R. 

26E7~(unsurveyed), 1 mile upstream from North Pork 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 1947. March 1927 to December 1928, at site 

nair a mile downstream.

Average discharge.- 17 years (1927-28, 1931-47), 1,482 second-feet.

Extremes.- Maximum discharge during year, 7,580 second-feet Nov. 23 (gage height 6 20 

reet); minimum, 127 second-feet Sept. 16, 30.

1927-28,' 1931-47: 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 except those for Oct. 2-14, which are good. Plow slightly 

regulated by small reservoirs above station on Ten Mile and Mill Plat Creeks.

Cooperation.- Gage-height record collected in cooperation with Pacific Gas & Electric Co.

Rating table, vater year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

0.5 113 1.2 268 2.4 802 4.5 3,040 

.6 130 1.4 330 2.8 1,080 5.0 4,040 

.7 148 1.6 401 3.2 1,420 5.5 5,320 

.8 168 1.8 483 3.6 1,810 6.0 6,880 

1.0 214 2.0 576 4.0 2,280

Discharge, in seoond-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.

794 

a550 

a500 

a410 

390

a420 

a380 

a350 

a360 

a350

a340 

a320 

a320 

a300 

269

324 

337 

324 

304 

292

280 

274 

268 

262 

254

246 

240 

235 

230 

219 

212

Nov.

212 

212 

200 

195 

190

192 

197 

204 

212 

202

212 

214 

222 

232 

230

235 

235 

230 

414 

1,370

470 

538 

4,440 

1,840 

1,160

937 

815 

736 

667

612

Dec.

586 

547 

533 

519 

936

1,420 

1,100 

884 

778 

725

684 

639 

607 

602 

581

562 

538 

514 

492 

496

483 

470 

462 

475 

736

760 

1,040 

784 

673 

586 

571

Jan.

586 

528 

496 

492 

496

479 

462 

449 

441 

441

441 

429 

425 

390 

379

382 

390 

382 

375 

371

364 

361 

357 

357 

354

357 

364 

382 

357 

390 

397

Feb.

394 

390 

382 

386 

382

386 

390 

394 

433 

524

470 

538 

656 

557 

533

538 

576 

538 

528 

519

501 

492 

488 

492 

510

506 

510 

492

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apri

"ay.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ...................................

lendar year 1946 

ary ^*

1. .....................................

St.. ...................................

ter year 1946-47 ...............

Mar.

492 

645 

562 

538 

542

506 

510 

519 

492 

510

514 

506 

519 

533 

557

607 

645 

707 

736 

754

* 748 

796 

1,010 

904 

865

852 

937 

986 

944 

937 

917

Apr.

1 

1

1

2 

2 

2 

2 

3

2 

2

1 

1 

1

1

1 

1 

1 

2

Secondfoot-days

10,374 

17,825 

20,783

503,419

12,874 

13,505 

21,290 

46,285 

118,900 

57,450 

17,855 

7,512 

4,621

349,274

944 

891 

944 

859 

852

815 

778 

772 

772 

766

872 

,010 

,200 

,510 

830

180 

490 

450 

790 

180

870 

350 

920 

720 

600

460 

440 

440 

570 

010

Hay

3,320 

4,840 

5,430 

5,260 

5,490

5,720 

5,400 

4,930 

3,470 

2,770

2,360 

2,320 

2,600 

2,410 

2,310

3,020 

3,300 

3,570 

4,080 

4,310

4,500 

4,790 

5,070 

4,600 

4,310

4,110 

3,490 

2,730 

2,620 

3,110 

2,660

Maximum

794 

4,440 

1,420

6,710

586 

656 

1,010 

3,180 

5,720 

2,580 

979 

308 

262

5,720

June

2,240 

2,450 

2,110 

2,000 

1,860

1,700 

2,190 

2,200 

2,270 

2,490

2,580 

2,230 

2,150 

2,320 

2,460

2,380 

2,050 

2,070 

2,140 

2,350

1,920 

1,500 

1,380 

1,320 

1,260

1,230 

1,230 

1,220 

1,130 

1,020

Minimum

212 

190 

462

158

354 

382 

492 

766 

2,310 

1,020 

311 

160 

128

128

July

979 

944 

898 

840 

802

784 

778 

742 

713 

678

645 

612 

597 

576 

557

547 

528 

510 

492 

483

479 

454 

437 

413 

390

364 

347 

330 

314 

311 

311

Aug.

304 

295 

286 

280 

271

268 

262 

260 

268 

308

'295 

277 

277 

292 

280

262 

254 

246 

240 

232

224 

217 

207 

195 

188

181 

177 

172 

168 

166 

160

Mean

335 

594 

670

1,379

415 

482 

687 

1,543 

3,835 

1,915 

576 

242 

154

957

Sept.

154 

148 

156 

214 

262

220 

146 

144 

144 

146

143 

139 

137 

134 

132

128 

132 

177 

186 

170

160 

154 

146 

144 

141

139 

135 

132 

130 

128

Runoff in 

acre-feet

20,580 

35,360 

41,220

998,500

25,540 

26,790 

42,230 

91,800 

235,800 

114,000 

35,410 

14,900 

9,170

692,800

Peak discharge.- Nov. 23 (11 a.m.) 7,580 sec. -ft.: May 6 (2 a.m.) 6,810 sec. -ft.

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

Kings River at Pledra and North Pork Kings River belov Raneheria Creek.
TULARE LAKE BASIN 209

Kings River at Piedra, Calif.

Location.- Water-stage recorder, lat. 36°49'02", long. 119°23'08", in NW£ sec. 8, T. 13 

S., R. 24 E., 0.5 mile downstream from highway bridge at Piedra, 2 miles downstream 

from Mill Creek, and I?, miles northeast of Sanger. Altitude of gage, about 500 feet 

(from topographic map).

Drainage area^- 1,694 square miles.

 

Records available.- September 1895 to September 1947.

Average discharge.- 52 years, 2,332 second-feet.

Extremes.- Maximum discharge during year, 17,300 second-feet Nov. 23 (gage height, 11.00 

ieetj; minimum, 138 second-feet Sept. 16, 17, 30 (gage height, 0.84 foot).

1895-1947: 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. Plow slightly regulated by small reservoirs on Ten Mile and 

Mill Plat Creeks, and by power plant on North Pork.

Cooperation.- Assistance in collecting gage-height record furnished by Kings River Water 

Association.

Rating tables, water year 1946-47 (gage height, In feet, 

and discharge, in second-feet)

Oct. 1 to Hay 6 May 7 to Sept. 30

1.2 218 3.0 980 5.5

1.6 318 3.5 1,310 6.0

2.0 472 4.0 1,710 7.0

2.3 605 4.5 2,160 8.0

2.6 755 5.0 2,680 9.0

3,310 0.8 130

4,020 1.0 171

5,700 1.3 240

7,840

10.50C Note.- Same as

preceding table

above 1.3 feet.

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.

930

1,1SO

615

582

516

564

468

438

459

438

409

396

405

384

369

388

464

451

405

377

358

340

337

331

321

304

296

290

282

274

262

Nov.

259

262

254

245

238

236

240

250

257

254

257

264

274

293

296

285

293

293

340

3,870

1,080

804

8,190

4,090

2,120

1,660

1,450

1,290

1,160

1,060

-

Dec.

1,000

956

898

870

1,700

3,440

2,260

1,620

1,410

1,230

1,170

1,100

1,050

1,030

1,020

950

920

882

838

826

810

794

766

794

1,560

2,050

2,970

2,010

1,430

1,230

1,080

Jan.

1,080

1,020

938

887

904

876

854

816

799

794

804

788

772

730

690

665

675

670

660

645

640

635

630

630

635

645

650

715

685

695

710

Feb.

695

700

700

705

705

700

726

745

755

1,030

926

914

1,640

1,210

1,110

1,060

1,140

1,140

1,040

998

980

950

944

956

998

1,030

1,010

1,000

_

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

Uo-tr ay. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

944

1,270

1,230

1,090

1,050

986

962

962

909

986

1,050

1,020

992

1,060

1,120

1,220

1,330

1,470

1,550

1,540

1,560

1,660

2,070

1,880

1,690

1,650

1,830

1,930

1,980

1,850

1,830

Apr.

1

1

1

1

1

1

1

1

1

1

1

1

2

2

3

4

4

4

5

5

5

4

3

3

2

840

69O

720

640

580

490

440

410

420

410

590

970

350

950

520

140

790

570

090

740

430

350

460

170

860

2,620

2

2,

2,

3

Seoondfoot-days

13,583

31,864

40,664

791,085

23,337

26,501

42,671

85,700

186,150

73,480

20,908

8,160

5,268

558,286

560

550

800

550

-

May

5,570

8,100

9,530

8,840

9,000

9,560

8,760

8,150

5,650

4,540

3,940

3,740

4,170

3,980

3,800

4,740

5,290

5,560

6,100

6,500

6,440

6,740

7,450

6,590

6,140

5,880

4,940

4,280

3,900

4,250

4,000

Maximum

1,130

8,190

3,440

11,600

1,080

1,640

2,070

5 740

9^580

3,390

1,170

334

304

9,580

June

3,280

3,390

3,040

2,810

2,600

2,420

2,760

3,090

2,980

3,180

3,300

2,910

2,700

2,840

2,960

2,880

2,560

2,480

2,530

2,720

2,400

1,930

1,670

1,590

1,520

1,450

1,450

1,440

1,350

1,250

-

Minimum

262

236

766

187

630

695

909

1,410

3,740

1,250

337

182

140

140

July

1,170

1,110

1,060

1,010

950

920

904

870

832

794

760

730

70S

690

660

645

630

600

574

556

547

534

507

481

451

426

396

369

350

340

337

Aug.

334

3

3

3

28

12

04

298

290

2

2

2

87

80

77

298

321

3

2

2

01

87

96

304

285

2

2

2

74

64

57

252

242

2

2

2

35

31

24

215

206

2

1

1

1

01

96

92

87

182

Mean

438

1,062

1,312

2,167

753

946

1,376

2; 857

6,005

2,449

674

263

176

1,530

Sept.

176

167

163

304

252

269

201

160

158

160

160

156

152

148

144

140

140

152

224

222

196

182

173

167

160

158

154

148

142

140

-

Runoff in 

acre- feet

26,940

63,200

80,660

1,569,000

46,290

52,560

84,640

170,000

US', 700

41,470

16,190

10,450

1,107,000
210 TULARE LAKE BASIN

North Pork Kings River near Cliff Camp, Calif.

Location.- Water-stage recorder, lat. 37°00', long. 118°59', in NW£ sec. 12, T. 11 S., R.

<=' E. , at Cliff Camp Bridge, 1 mile northwest of Cliff Camp and 2.3 miles downstream

from Woodchuck Creek. Altitude of gage, about 6,150 feet (from topographic map). 

Drainage area.- 174 square miles. 

Kecoras available.- November 1922 to September 1947. August 1921 to November 1922 at site

I mile upstream.

Average discharge.- 23 years (1921-32, 1933-35, 1937-47), 353 second-feet. 

extremes.- Maximum discharge during year, 3,600 second-feet May 2 (gage height, 11 J> feet,

rrom high-water mark); minimum, 3.5 second-feet Sept. 16.

1921-47: Maximum discharge, 14,000 second-feet Dec. 11, 1937 (gage height, 18.0

feet, from floodmarks), from rating curve extended above 4,500 second-feet on basis

of velocity-area studies and by logarithmic plotting; minimum, 0.6 second-foot Dec. 30,

1930. 

Remarks.- Records good except those for periods of no gage-height record, which are fair.

MO storage or diversion above station. 

Cooperation.- Water-stage recorder graph, furnished by San Joaquin Power Division, Pacific

was & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, vater year 1946-47 (gage height, in feet, 

and discharge, In second-feet)

2.3 2.9 3.7 78 7.0 982 

2.4 3.8 4.0 120 7.5 1,180 

2.6 6.3 4.4 190 8.0 1,400 

2.8 9.8 4.9 298 8.5 1,660 

3.0 16 5.4 430 9.0 1,980 

3.2 28 6.0 618 9.5 2,360 

3.4 45 6.5 794 10.0 2,760

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

Dot.

348 

92 

87 

62 

58

42 

41 

49 

47 

43

44 

44 

42 

38 

34

44 

50 

39 

39 

34

32 

30 

30 

29 

27

24 

24 

22 

19 

16 

16

Nov.

16 

16 

14 

14 

12

14 

16 

16 

13 

15

17 

18 

18 

20 

20

21 

22 

21 

30 

75

36 

86 

1,060 

327 

224

198 

180 

162 

141 

128

Dec.

126 

116 

108 

111 

522

232 

166 

139 

117 

110

110 

105 

100 

105 

100

90 

85 

80 

75 

70

70 

65 

65 

80 

250

180 

150 

130 

110 

105 

100

Jan.

105 

95 

90 

90 

90

90 

88 

87 

88 

94

97 

88 

83 

74 

71

70 

66 

66 

66 

66

66 

70 

73 

74 

76

82 

81 

77 

83 

83 

79

Feb.

81 

83 

86 

90 

88

98 

104 

105 

106 

112

104 

138 

157 

150 

143

133

120 

112 

105 

106

105 

108 

118 

138 

150

151 

148 

128

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

lendar year 1946 

ary. ...

h.. ....................................

1........... ...........................

ember. .................................

ter year 1946-47 ......................

Mar.

126 

162 

133 

125 

120

110 

114 

118 

105 

138

133 

139 

162 

192 

226

267 

298 

338 

310 

320

353 

416 

499 

351 

327

366 

422 

424 

351 

369 

353

Apr.

1

1

1 

1

1 

1

1

Secondfoot-days

1,546 

2,950 

3,972

141,067.8

2,508 

3,267 

7,867 

22,116 

39,950 

8,297 

802.4 

230.3 

184.4

93,690.1

Peak discharge.- Nov. 23 (7 a.m.) 1,840 sec. -ft.; May

356 

303 

320 

270 

261

254 

241 

256 

261 

284

122 

542 

708 

898 

,060

,280 

,340 

390 

,580 

610

400 

030 

808 

772 

666

621 

618 

649 

816 

100

May

1,600 

2,300 

2,400 

2,200 

2,300

2,200 

1,900 

1,500 

1,100 

900

850 

850 

900 

900 

950

1,200 

1,300 

1,300 

1,400 

1,300

1,300 

1,400 

1,300 

1,200 

1,100

950 

800 

700 

600 

650 

600

Maximum

348 

1,060 

522

2,960

105 

157 

499 

1,610 

2,400 

550 

60 

9.4 

20

2,400

June

500 

550 

480 

436 

396

374 

499 

466 

442 

436

396 

325 

305 

298 

286

254 

220 

210 

206 

200

166 

131 

114 

105 

98

91 

87 

82 

76 

68

Minimum

16 

12 

65

5.9

66 

81 

105 

241 

600 

68 

9.6 

5.6 

3.7

3.7

July

60 

55 

51 

48 

45

41 

39 

35 

34

31

29 

28 

26 

23 

22

22 

20 

19 

18 

17

16 

16 

15 

14

14

12 

12 

11 

10 

9.8 

9.6

Aug.

9.2 

8.8 

8.7 

8.5 

8.5

8.1 

7.7 

7.4 

7.9 

9.2

9.4 

8.7 

8.1 

7.7 

7.6

7.4 

7.3 

7.3 

7.1 

7.6

7.1 

6.8 

6.6 

6.5 

6.2

6.0 

5.9 

5.8 

5.8 

5.8 

5.6

Sept.

5.4 

5.3 

5.1 

4.8 

4.5

4.3 

4.2 

4.3 

4.5 

4.8

4.8 

4.6 

4.5 

4.2 

3.9

3.7 

6.4 

20 

12 

9.4

8.1 

7.3 

7.1 

6.6 

6.3

6.2 

5.9 

5.5 

5.4 

5.3

11=0,, Runoff in "ean acre-feet

49.9 3,070 

98.3 5,850 

128 7,880

386 279,800,

80.9 4,970 

117 6,480 

254 15,600 

737 43,870 

1,289 79,240 

277 16,460 

25.9 1,590 

7.43 457 

6.15 366

257 185,800

2 (time unknown) 3,600 sec. -ft. Mote.- No gage-height record Dec. 10 to Jan. 6, Apr. 30 to June 3j discharge computed on basis of 

record for station below Rancherla Creek.
TULARE LAKE BASIN 211

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.

VI K., 1 mile upstream from Balch diversion dam and 1 mile downstream from Rancheria

Creek. Altitude of gage, about 4,150 feet (from topographic map). 

Drainage area.- 225 square miles.

Kecoras available.- March 1927 to December 1937, January 1939 to September 1947. 

Average aiscnargeT- 17 years (1927-36, 1939-47), 398 second-feet. 

Extremes.- Maximum discharge during year, 3,630 second-feet May 2 (gage height, 10.57

reet); minimum dally, 13 second-feet Sept. 6-9, 14-16.

1927-47: 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 no gage-height record, which are fair.

No storage or diversion above station. 

Cooperation.- Water-stage recorder graph, furnished oy San Joaquin Power Division of

faciric lias & Electric Co., obtained in connection with a Federal Power Commission

project.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

1.1 12 3.0 80 6.0 553 

1.3 14 3.5 118 6.5 733 

1.6 19 4.0 165 7.0 950 

1.9 26 4.5 225 8.0 1,540 

2.2 36 5.0 307 9.O 2,260 

2.6 54 5.5 415 9.4 2,580

Discharge, in seccnd-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.

467 

144 

104 

91 

83

70 

61 

65 

66 

59

58 

59 

58 

54 

50

65 

72 

62 

55 

52

50 

48 

47 

46 

43

41 

40 

39 

37 

34 

32

Nov.

32 

32 

30 

30 

29

29 

31 

33 

31 

29

31 

33 

36 

36 

36

40 

40 

39 

174 

329

93 

118 

1,900 

547 

331

282 

255 

228 

200 

182

Dec.

177 

166 

156 

158

920

456 

276 

222 

191 

180

179 

172 

167 

175 

167

157 

151 

141 

135 

135

132 

132 

130 

172 

433

305 

263 

200 

185 

166 

160

Jan.

164 

148 

137 

137 

141

141 

135 

133 

136 

139

142 

136 

132 

118 

112

109 

108 

106 

104 

104

104 

104 

107 

108 

110

113 

116 

110 

117 

116 

115

Feb.

116 

118 

120 

124 

122

131 

139 

140 

155 

160

149 

258 

252 

215

200

191 

176 

163 

156 

159

154 

156 

163 

182 

198

197 

197 

173

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ........................ .........

mber. ..................................

lendar year 1946 

ary

h. .....................................

1. .....................................

St. ....................................

ember. .................................

ter year 1946-47 ......................

Mar.

173 

257 

197 

174 

173

157 

160 

165 

148 

189

184 

184 

203 

231 

263

305 

339 

393 

369 

367

398 

464 

609 

420 

384

413 

487 

515 

423 

441 

418

Apr.

1 

1

1 

1

1

1

1

Secondfoot-days

2,252 

5,236 

6,759

160,059

3,802 

4,664 

9,603 

24,661 

45,045 

9,473 

1,230 

484 

434

113,643

Peak discharge.- Nov. 23 (9 a.m.) 2,940 sec. -ft.; May

420 

360 

391 

325 

314

307 

291 

305 

311 

325

475 

612 

794 

985 

160

380 

450 

470 

670 

750

540 

160 

896 

882 

757

705 

697 

721 

878 

330

May

2,030 

2,540 

2,560 

2,400 

2,450

2,390 

2,110 

1,830 

1,240 

1,020

955

\ 930 

9 980 

980 

1,050

1,420 

1,410 

1,470 

1,550 

1,500

1,410 

1,490 

1,470 

1,290 

1,230

1,130 

1,030 

860 

770 

840 

710

Maximum

467 

1,900 

920

3,050

164 

258 

609 

1,750 

2,560 

648 

82 

19 

24

2,560

June

633 

648 

547 

492 

449

408 

541 

517 

484 

481

446 

365 

337 

327 

312

284 

250 

236 

228 

222

192 

160 

140 

131 

124

116 

109 

105 

99 

90

Minimum

32 

29 

130

14

104 

116 

148 

291 

710 

90 

19 

14 

13

13

July

82 

75 

70 

66

62

58 

55 

51 

48 

46

44 

43 

41 

38 

37

35 

34 

32 

30 

29

28 

26 

26 

25 

24

23 

22 

21

20 

20 

19

Aug.

19 

18 

18 

18 

17

17 

16 

16 

17 

18

18 

17 

16 

16 

15

15 

15 

14 

14

14

15 

15 

14 

14 

14

14 

14 

14 

14 

14 

14

Sept.

14 

14 

14 

14 

14

13 

13 

13 

13 

14

14 

14 

14 

13 

13

13 

14 

24 

21 

17

15 

14 

14 

14

14

14 

14 

14 

14

14

.. Runoff in Mean acre-feet

72.6 4,470 

175 10,390 

218 13,410

439 317,400

123 7,540 

167 9,250 

310 19,050 

822 48,910 

1,453 89,350 

316 18,790 

39.7 2,440 

15.6 960 

14.5 861

311 225,400

2 (9 p.m.) 3,630 sec. -ft.

Note.- No gage-height record May 12-31, Sept, 2-16, 26-30; discharge computed on basis of flow at 

Baloh powerhouse or records for station near Cliff Cai.ip.
212 SAN JOAQUIN RIVER BASIN

SAN JOAQUIN RIVER MAIN STEM

San Joaquln River above Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°15'00", long. 119°19 I 10", in NWt sec. 11, T. 8

a., H. 24 E., 3 miles upstream from Big Creek. Altitude of gage, about 2,500 feet

(from topographic map). 

Drainage area.- 1,042 square miles. 

Kecords available.- March 1922 to September 1947. 

Average discharge"?- 22 years (1925-47, period since diversion Degan through Ward tunnel),

l,35U second-feet. 

Extremes.- Maximum discharge during year, 6,890 second-feet Nov. 23 (gage height, 13.99

feet); minimum, 84 second-feet Sept. 16 (gage height, 6.30 feet).

1922-47: Maximum discharge, 52,500 second-feet Dec. 11, 1937 (gage height, 24.05

feet), from rating curve extended above 14,000 second-feet on basis of velocity-area

studies; minimum, 52 second-feet Sept. 24, 25, 1931. 

Remarks.- Records excellent. Flow regulated by Florence Lake (see p. 222) and diversions

through Ward tunnel (see p. 225). 

Cooperation.- Water-stage recorder graph and eleven discharge measurements, furnished by

Southern California Edison Co.,ootained in connection with a Federal Power

Commission project.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, In second-feet)

6.3 84 8.0 473 11.0 2,400

6.5 107 8.5 70

6.7 134 9.0 95

7.0 183 9.5 1,24

7.3 249 10.0 1,57

D 11.5 2,920

5 12.0 3,520

~> 12.5 4,210

D 13.0 5,000

7.6 333 10.5 1,950 13.5 5,910

Diacharge, In seccnd-feet, water year October 1946 to September 1947

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.

865

852

509

428

375

312

262

252

252

230

218

212

207

199

189

218

227

225

207

203

193

187

185

205

187

178

176

167

162

169

165

Nov.

154

154

136

131

140

137

143

148

143

138

146

148

160

170

163

155

163

167

656

1,710

458

481

4,370

1,790

972

770

685

612

552

505

-

Dec.

489

469

443

424

1,530

2,090

1,180

895

740

655

607

565

534

534

513

489

458

435

410

421

410

399

396

454

1,250

1,460

1,360

999

815

710

636

Jan.

645

579

505

513

522

509

485

465

465

465

473

465

450

403

385

392

385

382

375

368

365

362

365

372

375

379

392

406

389

406

410

Feb.

403

406

410

413

424

435

458

477

539

640

565

818

1,230

916

825

785

735

690

660

640

616

602

612

645

700

735

740

675

_

.

-

Month

October. ...................................

November. ........................ .........

Decembe r ...................................

Calendar year 1946 ......................

January. ................................. .

February. ............................ .....

March. ............................... ... .

April. .....................................

May........................................

June ......... .............................

July. ......................................

August ................................... . September. .................................

Water year 1946-47 ......................

Mar.

640

938

830

730

675

626

621

607

574

690

745

700

705

745

820

922

1,030

1,160

1,180

1,200

1,280

1,360

1,590

1,330

1,200

1,220

1,360

1,420

1,400

1,540

1,420

Apr.

1

1

1

1

1

1

1

1

1

1

2

2

3

2

3

270

140

160

060

060

010

950

950

938

933

120

300

520

950

340

680

010

960

070

3,270

2,930

2 t

1,

1,

1,

1,

1,

1,

1,

2,

Secondfoot days

8,416

16,257

22,770

474,432

13,452

17,794

31, 258 

52 731

100^660

34,604

9,635 

4 295

3^274

315,146

330

810

830

680

560

500

490

660

250

-

May '

3,520

4,750

5,480

5,120

5,020

5,220

4,720

4,300

2,880

2,230

1,890

1,730

1,760

1,750

1,980

2,510

2,820

3,020

3,340

3,820

3,950

4,080

4,200

3,660

3,370

3,170

2,510

2,050

1,800

2,000

2,010

Maximum

865

4,370

2,090

6,970

645

1,230

1,590 

3,270

5,480

1,590

522

172

193

5,480

June

'1,560

1,520

1,400

1,250

1,200

1,140

1,320

1,590

1,470

1,480

1,580

1,320

1,230

1,320

1,460

1,460

1,270

1,200

1,200

1,340

1,140

850

740

720

700

675

670

650

602

547

Minimum

162

131

396

J.U9

362

403

574

933

1 730

547

167

103

85

85

July

522

505

477

450

428

417

410

396

372

355

346

327

318

312

303

297

292

286

281

275

267

249

242

227

212

197

187

178

170

167

170

Aug.

172

165

159

154

157

154

152

152

154

163

162

152

144

152

151

148

143

140

137

138

136

130

123

116

110

106

106

106

105

105

103

Mean

271

542

735

1,300

434

636

1,008 

I* 758

3 247

l',153

311

139

109

863

Sept.

99

95

94

97

102

102

100

99

97

96

94

91

88

87

86

85

96

185

193

162

142

127

119

116

111

108

106

102

99

96

Runoff in 

acre-feet

16, 690

32 250

45 ) 160

941 100

26,680

35,290

62,000

104,600 

199,700

68, 640

19,110

8,520 

6,490

625,100
SAN JOAQUIN RIVER MAIN STEM 213

San Juaquin River below Kerckhoff powerhouue, Calif.

Location.- Water-stage recorder, lat. 37°0fa', long. 119°34', in NW£ sec. 10, T. 10 S., R. 

22 E. , 0.8 mile downstream from Kerckhoff powerhouse and 2 mi Its 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.

Records available.- December 1936 to December 1937, December 1942 to September 1947.

Extremes.- Maximum discharge during year, 16,600 second-feet (regulated) Nov. 23 (gage 

height. 26.15 feet); minimum, 83 second-feet (regulated) June 30.

1936-37, 1942-47: 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 ol' velocityarea studies, computed flow over Kerckhoff Dam, and peak flow of San Joaquin River 

near Friant; minimum, 7 second-feet (regulated) Nov. 5, 1944.

Remarks.- Records good. Flow regulated by six reservoirs and eleven power plants abuve 

station. See records for Florence Lake, Huntington Lake, and Shaver Lake. Contents 

of Crane Valley Reservoir was 32,500 acre-feet on Sept. 30, 1946, and 24,500 acre-feet 

on Sept. 30, 1947.

R-ititig tabl

8.5

9.0

9.5

10.0

, witer 

-ind disc

484

604

738

884

194K-47 (gage height, In feet,

11.0

12.0

13.0

14.0

10.5 1,050

1,220

1,630

2,120

2,720

et)

16.0

18.0

20.0

4,210

5,910

7,900

15.0 3,440

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.

1,360

1,630

1,320

1,280

1,140

683

874

1,000

890

854

997

812

517

976

871

1,070

903

1,O70

1,070

581

870

1,070

1,060

1,080

1,080

1,030

864

1,000

1,040

1,120

1,130

Nov.

1,050

926

741

932

1,020

1,050

1,100

1,060

994

647

9O6

1,020

1,060

1,030

1,130

935

731

912

1,170

4,080

1,440

1,220

5,980

3,100

1,970

1,700

1,860

1,630

1,440

1,460

-

Dec.

1,350

1,380

1,540

1,630

1,960

3,990

2,520

2,060

1,690

1,940

1,680

1,460

1,520

1,390

1,480

1,420

1,570

1,490

1,380

1,460

1 , 540

1,490

1,440

1,630

?,I':'0

3,000

3,380

2,530

2,060

1,850

2,020

Jan.

1,720

1,630

1,740

1,800

1,730

1,600

1,620

1,570

1,620

1,590

1,420

1,220

1,480

1,360

1,270

1,390

1,380

1,250

1,170

1,280

1,280

1,180

1,200

1,210

1,040

937

1,110

1,210

1,280

1,220

1,210

Feb.

1,070

846

1,190

1,270

1,140

1,130

1,300

1,230

1,180

1,380

1,390

1,520

2,310

1,900

1,700

1,580

1,390

1,740

1,580

1,600

1,270

1,280

1,490

1,430

1,430

1,490

1,530

1,540

_

_

-

Month

October. ...................................

November ......................... .........

December. ..................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. .....................................

April. .....................................

May........................................

June ............................... .......

July .......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

1,440

1,580

1,590

1,780

1,520

1,430

1,520

1,490

1,320

1,550

1,490

1,660

1,550

1,550

1,410

1,740

1,670

1,750

1,880

1,940

1,950

2,160

2,220

2,020

2,050

1,960

2,020

2,130

2,260

2,050

1,880

Apr.

2,140

2,060

1,940

1,840

1,810

1,230

1,460

1,650

1,740

1,630

1,630

1,730

1,820

1,960

2,940

3,290

3,590

3,660

3,630

3,660

3,570

3,O10

2,610

2,430

2,330

2,140

2,110

1,870

2,140

2,800

-

Secondfoot-days

31,242

44,344

57,970

835,157

42,717

54^560

70,420

113,150

51,202

37 , 618

32,017

29,037

604,183

May

3,780

4,870

5,880

5,510

5,310

5,710

5,380

4,950

3,660

2,580

2,250

2,170

2,270

2,120

2,510

2,850

3,140

3,080

3,600

4,210

4,370

4,490

4,750

4,100

3,6*0

3,580

3,080

2,720

2,220

2,000

2,370

Maximum

1,630

5,980

3,990

7,500

1,800

2,310

2 , 260

3,660

5,880

2 200

1^400

1,290

1.1RO

5,980

June

2,190

1,770

1,760

1,760

1,770

1,770

1,720

1,770

1,770

1,860

2,200

2,130

1,940

1,810

1,880

1,920

2,120

1,920

1,990

1,830

1,890

1,270

1,510

1,460

1,510

1,430

1,100

1,230

832

1,090

Minimum

517

647

1,350

517

937

846

1,320

1 230

2,000

832

712

674

492

492

July

1,380

1,390

1,360

958

913

777

1,300

gl,370

gl,400

gl,370

,350

,110

,010

,190

,330

1,350

1,400

1,380

1,350

838

1,280

1,370

1,380

1,360

1,270

1,240

712

1,240

1,110

1,050

1,080

Aug.

968

774

674

1,170

1,070

1 , 0! 0

1,120

,040

,11 >

904

,290

,180

,170

1,150

al , 200

1,140

72f.

1,220

1,220

1,140

1,140

1,090

745

784

1,040

1,220

984

1,090

1,120

7S6

722

Mean

1,008

1,478

1,870

2,288

1,378

1,425

1,760

2,347

3,650

1,707

1,213

1,033

968

1,655

Sept.

770

1,060

1,140

1,050

1,OGO

1,08O

af.60

1,060

1,080

fiGB

1,160

1,060

1,000

783

1,110

1,O30

964

988

97 C,

1,040

872

1,140

sal

1,030

872

1,010

871

492

1,030

al , 000

-

Runoff in 

acre-feet

61,970

87,960

115,003

1,657,000

84,730

79,150

108,200

139,700

224,400

101,600

74,610

63,500

57,590

1,198,000

a No gage-height record; discharge computed on basis of records at Kerckhofr powerhous 

g Computed from graph based on hourly telemark readings.

854211 O - 49 - 15
SAN JOAQUIN RIVER MAIN STEM

Millerton Lake at Friant, Calif.

Location.- Water-stage recorder, lat. 37°00', long. 119°42', In SW-£ sec. 5, T. 11 S., 

R. 21 E., 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 1947.

Extremes.- Maximum contents during year, 404,800 acre-feet May 27, 28 (elevation, 552.7 

feet); minimum, 101,000 acre-feet Sept. 30 (elevation, 451.0 feet).

1941-47: Maximum contents 441,800 acre-feet June 5, 1946 (elevation, 561.£ feet); 

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 (except for control valves and spillway drum gates) in December 1942. Total 

usable capacity, 419,100 acre-feet between elevations 375.4 feet (invert of river outlet) and 560.0 feet iscillway crest elevation) 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 furnished by Bureau of Reclamation.

Contents, in acre-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.

193,400

192,900

191,600

190,200

188,600

186,200

184,300

182,600

181,100

179,200

177,700

175,900

173,500

172,000

170,200

169,000

157,210

166,000

164,700

162,400

160,700

159,500

158,1 lu

156,900

155,700

154,500

152,800

151,400

150,200

149,300

148,800

Nov.

148,800

148,600

148,100

147,600

147,900

147,900

148,100

148,300

148,600

148,300

148,600

149,300

150,000

150,900

151,900

152,600

152,800

153,500

155,000

162,200

164,000

165,700

176,900

182,600

185,600

188,000

190,700

193,200

194,800

196,800

-

Dec.

198,400

200,100

202,100

204,400

207,200

214,400

218,600

221,600

224,000

226,700

229,100

230,600

232,800

234,600

236,500

238,400

240,300

242,200

244,100

246,000

247,900

250,100

251,700

254,000

256,900

261,800

268,500

272,600

275,300

277,700

280,100

Jan.

282,200

283,900

286,000

288,000

290,200

291,600

293,300

294,700

295,100

297,600

298,600

299,300

300,800

301,500

302,200

303,300

304,400

305,100

305,800

305,500

307,200

308,000

308,300

309,100

309,400

309,800

310,200

310,900

312,000

313,10'i

314,200

Feb.

314,900

314,900

316,000

317,200

317,900

318,600

319,800

320,900

322,000

323,500

324,600

326,500

329,900

332,200

334,100

336,000

337,500

339,400

341,000

341,700

342,100

342,100

342,900

343,300

344,000

344,400

345,200

346,000

_

_

-

Mar.

346,400

347,500

348,300

349,100

349,100

349,100

349,500

349,500

349,500

349,500

349,500

349,900

349,900

350,300

349,900

350,700

350,700

jil,400

352,200

353,000

354,200

355, 700

357,300

3bO,l; '"

358,500

353,100

358,500

358,500

358,800

358,500

358,100

Apr.

357,300

356,500

355,300

353,800

352,200

349,100

345,800

344,800

343,300

341,400

339,400

337,900

336,400

335,600

336,400

337,900

339,800

342,100

344,000

345,600

347,20Q

347,500

346,400

344,400

342,500

340,200

337,500

334,800

332,600

331,400

-

May

332,600

336,000

341,400

346,000

350,700

356,500

361,600

365,000

367,600

367,600

366,400

366,000

366,000

3SS.OOO

367,200

368,800

371,200

373,700

37G,9UJ

381,400

385,900

390,500

395,500

393,300

401,800

404,000

404,800

404,800

404,400

404,000

403,500

June

403,500

402,200

401,000

400,100

399,300

398,400

397,600

396,800

395,900

395,100

394,700

394,200

393,000

391,300

389,700

388,400

387,200

385,900

384,300

382,600

380,600

377,300

374,500

372,000

359,200

356,400

362,800

359,600

355,300

351,800

-

July

348,300

345,200

342,100

338,700

335,200

331,400

328,800

325,800

323,200

320,500

317,500

313,800

310,200

306,900

303,600

300,000

296,800

293,700

290,500

286,000

282,500

278,700

275,300

271,900

268,200

264,800

260,200

256,600

253,400

549,500

!46,300

Aug.

242,500

238,400

234,000

231,000

227,600

224,000

221,000

217,700

213,600

209,800

207,000

204,400

201,500

198,700

195,600

192,900

188,800

185,900

182,900

179,800

176,100

172,700

1.68,400

164,700

131,700

158,800

155,900

153,300

150,900

148,100

145,400

Sept.

142,900

140,900

139,100

137,500

136,000

134,400

132,300

130,600

129,300

127,400

126,600

12.3, r.OO

124,300

123,300

122,700

122,300

121,700

120,900

119,900

119,100

117,900

117,100

115,800

114,100

112,000

109,700

107,600

104,500

102 , 500

101,000

-

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31. ...............

Calendar year 1945...

Sept. 30.. ..............

Water- /ear 1946-47. ..

Elevation 

(feet)

520.2

.

534 4

55° 4

451.0

-

Contents 

(acre-feet)

280,100

-

101,000

-

Change In contents 

dirlng month 

(acre-feet)

-45,800

+83,300

-18,200

-100,900

-44,430

-93,600
SAN JOAQUIN RIVER MAIN STEM' 215

San Joaquin River below Friant, Calif.

Location.- Water-stage recorder, lat. 36°b9'04", long. 119°43i24", in SW£ 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.

Records available.- October 1938 to September 1947. October 1907 to December 1913 at 

site 4 t> miles upstream. December 1913 to September 1938 at site 2.6 miles upstream.

Average discharge.- 40 years (1907-47), 2,362 second-feet, including diversions to Madera 

canal, iy44-4Y.

Extremes.- Maximum discharge during year, 3,020 second-feet (regulated) Apr. 23-26 (gage 

nelgnt, 6.38 feet); minimum, 368 second-feet (regulated) Nov-. 13.

1907-47: 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 (regulated) Oct. 20, 1941.

Remarks.- Records excellent. Flow regulated by Millerton Lake (see preceding page), six 

other reservoirs, and eleven power plants above station. (See ".Remarks" for station 

below Kerckhoff powerhouse.) Diversion for irrigation through Madera Canal, above 

station, began June 4, 1944, and for the water year 1947 amounted to 101,800 acre-feet.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

3.3 400

3.5 490

3.7 595

3.9 710

4.1 840

4.2 910

4.4 1,060

4.6 1,220

5.0 1,560

5.4 1,940

5.9 2,470

6.4 3,040

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.

1,580

1,570

1,560

1,560

1,550

1,550

1,590

1,430

1,430

1,420

1,430

1,420

1,420

1,420

1,430

1,420

1,420

1,420

1,420

1,420

1,410

1,410

1,400

1,400

1,400

1,400

1,400

1,400

1,330

1,200

1,060

Nov.

756

756

756

736

716

710

710

710

650

595

595

540

436

414

414

414

414

414

418

422

422

422

427

432

432

432

432

432

436

436

-

Dec.

436

436

436

440

440

445

445

445

450

454

454

454

454

454

454

454

454

454

454

454

454

458

458

578

692

692

710

704

704

704

704

Jan.

704

704

704

704

704

704

730

808

840

840

840

840

840

840

840

840

840

847

847

847

847

847

847

840

840

840

840

801

680

680

630

Feb.

680

680

680

680

680

686

686

686

692

704

692

698

698

698

698

698

698

698

955

1,190

1,180

1,180

1,180

1,180

1,180

1,180

1,180

1,180

_

-

Month

October. ...................................

November ......................... .........

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. ......................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

1,150

1,180

1,180

1,320

1,450

1,450

1,450

1,450

1,450

1,460

1,460

1,460

1,450

1,450

1,450

1,450

1,460

1,460

1,470

1,470

1,470

1,470

1,480

1,480

1,560

1,760

1,760

1,810

1,840

1,840

1,840

Apr.

2,060

2,230

2,230

2,220

2,330

2,430

2,430

2,340

2,270

2,230

2,230

2,230

2,230

2,230

2,230

2,230

2,240

2,240

2,370

2,440

2,430

2,570

2,910

3,020

3,020

3,020

3,000

3,000

2,990

2,990

Secondfoot-days

44,270

15,879

15,825

774,014

24,605

24,017

46,460

74,390

65,510

68,460

80,120

73,970

48,890

582,396

May

2,880

2,770

2,770

2,780

2,590

2,300

2,300

2,320

2,300

2,300

2,300

2,130

1,910

1,720

1,570

1,570

1,580

1,580

1,580

1,590

1,590

1,730

1,900

1,950

2,030

2,180

2,440

2,380

2,230

2,120

2,120

Maximum

1,590

756

710

6,560

847

1,190

1,840

3,020

2,880

2,640

2,780

2,620

2,020

3,020

June

2,120

2,120

2,040

1,940

1,910

1,880

1,940

1,930

1,930

1,990

2,060

2,110

2,210

2,340

2,340

2,340

2,340

2,340

2,400

2,490

2,550

2,550

2,550

2,540

2,540

2,520

2,560

2,640

2,620

2,620

Minimum

1,060

414

436

414

680

BOO

1,180

2,060

1,570

1,880

2,370

2,020

1,140

414

July

2,620

2,620

2,560

2,420

2,400

2,390

2,380

2,380

2,370

2,370

2,430

2,540

2,520

2,520

2,600

2,720

2,700

2,700

2,690

2,690

2,720

2,780

2,770

2,760

2,740

2,730

2,730

2,670

2,540

2,540

2,520

Aug.

2,510

2,500

2,500

2,500

2,490

2,470

2,460

2,450

2,440

2,440

2,390

2,300

2,220

2,220

2,260

2,330

2,330

2,330

2,350

2,440

2,520

2,510

2,580

2,620

2,520

2,360

2,340

2,330

2,210

2,030

2,020

Mean

1,428

529

510

2,121

794

858

1,499

2,480

2,113

2,282

2,585

2,386

1,630

1,596

Sept.

2,010

2,000

1,830

1,730

1,720

1,710

1,710

1,700

1,670

1,510

1,500

1,450

1,360

1,360

1,300

1,140

1,200

1,330

1,330

1,400

1,430

1,430

1,570

1,820

1,940

1,960

2,020

2,020

1,920

1,820

Runoff in 

acre-feet

87,810

31,500

31,390

1,535,000

4-8,800

47 , 640

92,150

147,600

129,900

135,800

158,900

146,700

96,970

1,155,000
216 -SAN JOAQUIN RIVER MAIN STEM

San Joaquin River near Mendota, Calif.

Location.- Water-stage recorder, lat. 36°48'35", long. 120°2?'35", In S^ sec. 7, T. 13 

S., K. 15 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 1947.

Extremes.- Maximum discharge during year, 2,450 second-feet Nov. 27 (gage height, 6.18 t 

reet); minimum, 39 second-feet (regulated) Nov. 10, Dec. 24.

1944-47: Maximum discharge, 6,440 second-feet June 19, 1945; maximum gage height, 

10.12 feet Feb. 8, 1945; minimum discharge, 12 second-feet (regulated) Oct. 26, 1944.

Remarks.- Records fair. Flow regulated by reservoirs and power plants above station. 

Many diversions above station for Irrigation.

 Cooperation.- Twelve discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

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 m

28

29

30

31

Oct.

270

267

270

270

276

261

26J.

270

264

261

267

267

267

267

267

267

267

264

255

249

246

237

240

234

228

225

222

216

216

216

216

Nov.

225

188

139

127

109

98

96

81

47

45

41

45

64

67

69

71

74

74

86

92

92

134

188

193

193

216

1,220

2,080

1.23O

759

-

Dec.

577

469

380

341

355

344

362

561

908

934

862

754

693

629 557

505

465

421

4O6

395

850

1,020

393

137

216

855

834

714

1,060

1,490

1,580

Jan.

1,220

1,080

1,060

1,020

952

898

867

854

858

890

872

862

854

836

813

8O4

790

782

777

772

768

777

813

818

777

768

777

8OO

8O4

768

701

Feb.

669

657

653

657

551

288

298

314

341

362

453

533

537

573

605

605

605

613

601

581

718

836

867

867

858

822

782

736

_

_

-

Month

October. ..................................

December ...................................

Calendar year 1946 ......................

March. .....................................

April ......................................

Unv

September. .................................

Water year 1946-47 ......................

Mar.

714

669

653

629

613

645

673

681

685

693

693

705

693

665

609

569

569

449

395

344

216

127

124

124

136

193

208

243

237

237

240

Apr.

243

276

341

334

311

314

295

258

249

273

279

282

279

273

258

243

237

279

337

410

383

324

317

337

398

387

373

380

387

398

-

Secondfoot-days

20,067

322,942

14 431

11 392

7,011

157,821

May

421

414

383

327

351

609

342

344

351

365

383

369

324

337

365

358

365

380

376

376

365

355

362

365

362

358

398

417

355

362

365

Maximum

276

1,580

4,810

304

2,080

June

369 395-

429

425

425

402

380

373

369

38O

391

387

398

425

421

421

433

441

445

437

433

441

449

449

441

441

449

461

461

461

-

Minimum

216

137

41

237

324

152

41

July

433

437

429

317

311

311

311

307

324

320

317

314

314

314

331

348

373

441

441

441

433

425.

433

437

437

437

437

429

425

421

421

Aug.

429

457

453

457

441

410

406

376

369

358

358

355

331

344

369

380

380

376

376

373

358

348

348

344

337

324

327

320

314

298

276

Mean

252

271

647

885

606

234

432

Sept.

276

226

282

298

298

301

304

298

295

298

288

264

258

252

231

210

202

168

154

154

152

152

168

185

219

231

216

216

21O

205

-

Runoff in 

acre feet

15,480

16,150

39,800

640,500

33,680

18,750

13,910

313,000
SAN JOAQUIN RIVER MAIN STEM 217 

San Joaquln River near Dos Palos, Calif.

Location.- Water-stage recorder, lat. 36°59'40", long. 120°30'00", in N| sec. 12, T. 11 

S., R. 13 E., 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). Prior to Nov. 27, 1946, water-s'tage recorder at site 0.6 mile upstream at same 

datum.

Drainage area.- 5,630 square miles.

Records available.- October 1940 to September 1947.

Extremes (regulated).- Maximum discharge during year, 1,720 second-feet Nov. 28 (gage 

 height, t>.Si4 i'eet), from rating curve extended above 900 second-feet by logarithmic

plotting; no flow Nov. 22-27.

1944-47: 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.

Remarks.- Records fair. Practically entire flow of river and tributaries diverted during 

irrigation season.

Cooperation.- Seventeen discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

37

35

35

33

33

31

33

34

36

19

.8

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.5

.5

.5

.5

.4

.5

.5

.4

.3

.4

Nov.

0.6

.4

.3

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

142

1,440

1,420

876

-

Dec.

618

488

406

361

343

349

385

421

660

840

864

816

768

716

666

610

576

544

520

502

509

1,020

815

353

313

361

959

752

812

1,120

1,460

Jan.

1,340

1,130

1,060

1,050

1,000

940

896

876

868

884

896

880

880

868

852

844

836

332

824

816

816

812

836

856

840

804

800

812

820

808

756

Feb.

712

691

674

674

677

474

385

385

388

397

436

509

551

558

596

621

618

628

624

614

604

756

816

848

824

792

760

722

-

_

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

698

660

607

554

540

534

558

576

586

600

610

624

635

604

565

498

481

454

349

292

166

52

39

33

31

35

36

49

60

55

55

Apr.

58

60

62

62

58

54

58

58

60

60

60

55

54

52

46

45

48

48

50

60

85

60

48

45

48

50

49

48

50

52

-

Secondfoot-days

337.9

3,881 .7

19,927

251,081.5

27 532

17 354

1 1 , 6 36

1,643

3,648

'SOS 8

82 0

56 . 8

90,185.2

May

50

68

67

39

26

111

289

128

137

157

168

190

159

124

126

124

109

109

111

109

107

103

103

124

122

124

126

139

107

92

100

Maximum

37

1,440

1,460

3,740

1 340

848

85

289

148

117

4.0

2.4

1,460

June

105

103

107

107

103

100

94

94

94

98

115

96

96

120

130

132

132

137

143

148

148

132

137

137

134

132

130

130

132

132

Minimum

0.3

0

313

0

756

385

31

45

26

94

2 5

i!?

1.2

0

July

117

100

98

67

13

6.2

5.4

3.3

2.5

3.0

3.3

2.7

2.7

2.7

2.5

3.8

4.0

5.1

6.2

5.9

5.9

5.9

5.7

5.7

5.7

5.7

5.7

5.7

3.3

2.7

2.5

Aug.

2.4

3.0

4.0

3.0

3.0

3.2

3.0

3.0

3.0

3.2

3.0

2.9

2.9

2.5

2.7

2.9

3.0

2.9

2.9

2.2

1.7

1.9

2.1

2.2

2.4

2.2

2.2

2.1

2.2

2.2

2.1

Mean

10.9

129

643

688

888

ei Olaq 

375

CA 3* . QO

118

120

16.4

2 . 65

1 89

247

Sept.

2.1

2.1

1.9

2.3

2.2

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.2

2.1

1.9

1.8

1.8

1.7

1.4

1.3

1.3

1.3

1.2

1.3

1.5

1.7

1.8

1.8

1.8

1.7

-

Runoff in 

acre- feet

670

7,700

39,520

498,000

54,610

34, 380

23,080

3,260

7 240

7^140

1,010

163

113

178,900
218 SAN JOAQUIN RIVER MAIN STEM 

San Joaquln River near El Nldo, Calif.

Location.- Water-stage recorder, lat. 37°06 I 45", long. 120°35'20", in NEij sec. 31, T. 3 

S., R. 13 E., on Chamberlain Slough 30 feet downstream from head, 5 miles southwest of 

El Nido. Datum of gage is 100.14 feet above mean sea level (Bureau of Reclamation 

bench mark).

Drainage area.- 6,940 square miles.

Kecoras available.- October 1939 to September 1947.

Extremes.- Maximum discharge during year, 953 second-feet Nov. 29 (gage height, 5.56 

reet); no flow Oct. 12 to Nov. 27 (result of irrigation operations).

1944-47: 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. Practically entire flow of river and tributaries diverted during 

irrigation season. Record shows flow in main channel of San Joaquin River only and 

does not include flow in sloughs. Same gage used for Chamberlain Slough near El Nido. 

For record of flow in Chamberlain Slough see page 242. During period of high water, 

flow bypasses this station through Maripbsa Slough. The following table gives the 

annual runoff, in acre-feet, through Mariposa Slough near El Nido as furnished bv 

Bureau of Reclamation:

Water year

1939-40 

1940-41 

1941-42 

1942-43 

1943-44 

1944-45 

1945-46 

1946-47

Runoff

122,000 

811,000 

268,000 

226,000 

0 

34,000 

100 

0

Cooperation.- Twenty-three discharge measurements furnished by Bureau of Reclamation.

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.

4.6

3.4

3.4

4.0

4.6

4.9

4.9

5.2

6.7

9.4

1.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

486

872

560

-

Dec.

352

264

206

170

156

152

156

182

262

439

502

499

471

432

394

355

325

301

279

264

254

462

55O

287

148

160

421

456

407

56O

8O3

Jan.

851

710

635

615

590

543

509

495

487

497

511

504

504

499

495

485

485

483

483

478

478

475

485

504

504

480

475

483

490

485

466

Feb.

430

412

401

401

405

333

222

213

220

220

236

279

317

321

339

361

363

366

366

363

352

421

495

519

521

492

475

451

_

_

-

Month

October. ...................................

November ......................... ......

December . ..................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March. .....................................

April. .....................................

May

June .......................................

July .......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

43O

41O

385

344

325

321

333

346

355

363

374

377

388

377

348

317

293

289

226

170

128

60

30

17

14

13

16

16

25

27

27

Apr.

29

29

30

31

29

27

29

31

28

28

30

28

26

27

25

24

24

27

28

32

40

45

33

30

31

33

35

33

34

35

Secondfoot-days

52 4

1,918"

10,669

149,421.4

16,184

10,294

7,144

911

3,431

3,601 

638* 3

33^5

54,934.9

May

36

33

43

35

24

45

257

194

122

138

146

165

173

129

115

115

115

108

110

111

107

104

106

110

117

117

118

122

122

97

97

Maximum

9.4

8O3

2,210

851

521

430

45

257

145

132

5.8

4.3

872

June

102

103

103

108

106

102

101

97

96

97

107

106

108

117

133

135

132

131

136

140

145

138

136

136

133

131

129

129

132

132

Minimum

0

0

148

0

466

213

13

24

24

96

1.9

.2

.1

0

July

132

112

107

104

55

25

16

12

8.6

2.8

1.9

1.9

1.9

2.2

1.9

2.2

2.2

2.8

2.8

3.4

3.

3.

3.

3.

3.

3.

3.

4.0

4.0

4.0

4.0

Aug.

3.7

3.1

4.6

5.8

4.9

4.6

3.4

3.4

3.7

3.4

3.1

2.5 1.6

.7

.5

.4

.3

.2

.3

.3

.5

.4

.3

.4

.7

.8

.9

.9

1.0

1.3

l.O

Mean

1. 69

63.9

344

409

522

368

230

30.4

111

120

20. 6 f 

1. 89

1.12

151

Sept.

1.6

1.0

.7

.7

.7

.9

.8

.8

.8

.9

.9

.9

1.0

2.8

3.4

4.3

3.1

3.1

1.0

.6

.7

1.3

.5

.2

.1

.1

.1

.1

.1

.3

Runoff in 

acre-feet

104

3,800

21,160

296 400

32 , 100 

20,420

14,170

1,810 

6,810

7,140

1,270 

116

66

109,000
SAN JOAQUIN RIVER MAIN STEM

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 1947. February 1937 to September 1947 in

reports or Division of Water Resources, Department of Public Works, State of California. 

Extremes.- Maximum discharge during year, 1,920 second-feet Jan. 2 (gage height, 64.66

reet); minimum. 91 second-feet Aug. 2, 27.

1944-47: Maximum discharge. 4,140 second-feet Feb. 12, 1945 (gage height, 68.60

feet); minimum, that of Aug. 2, 27, 1947. 

Remarks.- Records fair. Practically entire flow of river and tributaries diverted during

irrigation season; low flo<*s 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 and one by

Division of Water Resources, Department of PuMic Works, State of California.

Discharge measurements, in second-feet, of Mud Slough near Fremont 

Ford Bridge during water year 1946-47

Oct.

Hov .

Dec.

22 0

5 .2

19 3.0

20 28.1

4 52

Dec. 24

26

Jan. G

21

85

52

75

47.5

Feb.

Mar.

6

18

14

iih

37.5

51

95

20.1

Apr.

May

June

7

22

6

11

17.8

3.0

.3

0

Discharge, in second-feet, water year October 1945 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.

271

282

301

313

340

368

352

352

355

301

269

264

243

224

204

204

200

202

198

188

180

177

169

158

150

132

120

115

115

115

117

Nov.

120

127

139

148

145

143

165

224

226

208

179

162

160

158

152

152

147

147

152

218

340

348

402

430

509

584

512

445 62"

1,430

"

Dec.

1,410

1,100

911

788

701

671

659

665

841

1,030

1,190

1,320

1,280

1,190

1,110

1,020

950

886

844

816

788

754

876

1,140

1,000

754

820

1,140

1,600

1,750

1,720

Jan.

1,830

1,920

1,800

1,610

1,500

1,450

1,370

1,300

1,250

1,210

1,200

1,190

1,180

1,150

1,130

1,100

1,070

1,050

1,040

1,030

1,010

998

995

1,000

1,020

1,020

998

992

992

995

1,000

Feb.

988

953

925

897

890

886

838

665

6O8

605

596

608

G59

802

922

950

918

897

869

858

838

816

852

956

1,010

1,010

978

942

~

-

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

April. .....................................

u_.r

July. ......................................

September. .................................

Water year 1946-47 ......................

Mar.

914

886

862

848

799

746

726

740

771

799

824

848

908

918

908

862

802

732

690

638

539

470

390

315

271

249

234

232

240

238

253

Apr.

275

271

240 24*5

269

287

335

328

313

315

296

275

273

264

266

282

262

251

234

222

216

230

236

236

232

236

232

234

240

243

-

Secondfoot days

6,979

8,894

31,724

350,638

5,199

166,153

May

243

251

255

258

280

287

271

280

382

348

328

348

360

380

368

338

320

308

294

298

287

273

27;;

264

251

251

271

280

284

287

280

Maximum

368

1,430

1,750

3,280

1 920

269

1,920

June

289

294

301

291

287

282

284

289

280

284

294

273

255

243

232

236

247

243

236

230

228

232-

230

222

228

226

226

224

212

220

-

Minimum

115

120

659

115

992

59fi

104

93

July

226

220

218

212

204

190

167

158

152

154

147

13G

131

131

. 132

124

119

115

114

114

115

117

117

117

114

120

117

117

12?

129

117

Aug.

99

93

96

106

119

114

104

109

12P

101

109

117

119

112

120

120

107

10G

112

131

129

115

104

96

101

107

95

112

111 1"2

141

Mean

 225

296

1,023

961

2S54

173

455

Sept.

175

182

179

147

158

1G9

169

169

171

182

198

206

240

269

216

f'14

?OG

W

? h

;'or,

192

167

152

139

129

119

114

106

109

104

Runoff in 

acre feet

13,840

17,640

62,920

695,400

1O.310

329,600
220 SAN JOAQUIN RIVER MAIN STEM

San Joaquin River near Newman, Calif.

Location.- Water-stage recorder, lat. 37°21 I 02", long. 120°58'34", in SW£ sec. 3, T. 7 

o., R. 9 E., 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 

Engineers.

Drainage area.- 9,990 square miles.

Records available - April 1912 to September 1947. Prior to Oct. 1, 1937, and subsequent 

to Sept. au, 1943, flow that bypassed station at discharges above about 9,000 secondfeet not included.

Averagi discharge.- 35 years, 2,505 second-feet.

Extremes.- Maximum discharge during year, 2,240 second-feet Jan. 2 (gage height, 5.78 

reet); minimum, 224 second-feet Aug. 7 (gage height, 1.40 feet).

1912-47: Maximum discharge, 33,000 second-feet Mar. 7, 1938 (gage height, 18.50 

feet); minimum, 15 second-feet Aug. 9, 10, 1924.

Remarks.- Records excellent except those for October to. November and May to September, 

which are 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.- Twelve discharge measurements furnished by Bureau of Reclamation. 

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.

581

606

654

658

637

626

602

598

584

533

485

468

431

411

398

401

398

378

374

361

348

342

332

318

308

299

286

286

282

282

232

Nov.

282

289

295

305

3O8

312

328

391

394

394

365

345

351

351

355

351

348

348

361

441

634

GS5

760

788

824

896

868

772

776

1,400

-

Dec.

1,570

1,320

1,110

990

909

888

896

892

1,060

1,300

1,450

1,580

1,580

1,490

1,430

1,360

1,300

1,230

1,180

1,140

1,120

1,080

1,120

1,400

1,370

1,140

1,220

1,640

2,140

2,190

2,120

Jan.

2,150

2,230

2,150

1,980

1,850

1,780

1,690

1,610

1,540

1,500

1,480

1,480

1,450

1,450

1,420

1,390

1,360

1,340

al,330

al,310

al,290

1,280

1,260

1,260

1,280

1,280

1,260

1,240

1,240

1,240

1,240

Feb.

1,230

1,190

1,160

1,130

1,120

1,110

1,080

945

860

852

860

896

922

,020

,170

,220

,190

,160

,130

,110

,100

,070

,080

,180

,230

,240

,200

1,160

_

-

Month

October. ...................................

November. ...................... . ...

December. ..................................

Calendar year 1946 ........... ........

January. .......... ............... . . ...

February ........................ ..........

March ............................ . . ......

April ......................................

May........................................

June .......................................

July. ............. ........................

August ............................... .....

September ..................................

Water year 1946-47 ......................

Mar.

1,110

1,070

1,070

1,070

1,040

986

972

981

1,010

1,050

1,090

1,110

1,170

1,190

1,180

1,140

1,070

994

940

880

784

708

637

564

516

489

465

465

475

478

512

Apr.

529

512

482

478

489

509

540

529

506

506

502

455

448

434

417

417

391

368

351

361

358

351

345

351

355

361

371

394

404

411

-

Secondfoot-days

13,549

15,297

41,215

637,831

46,370

30,615

27 ,216

20^125

14,517

10,108

10 ' 005

250,690

May

411

398

384

391

424

444

438

411

502

526

523

546

540

543

536

492

469

448

451

448

421

634

1,150

1,300

1,340

1,240

1,050

994

963

909

800

Maximum

658

1,400

2,190

5,400

2 2 30

1^240

1 , 190

540

1 340

7 32

427

358

438

2,230

June

732

716

693

651

620

588

570

570

536

519

516

475

465

448

427

417

417

404

378

374

378

388

401

394

398

401

401

408

403

424

-

Minimum

282

282

888

282

1,240

852

465

345

384

374

279

236

242

236

July

427

411

374

381

394

394

378

355

305

318

322

322

318

308

312

299

289

295

292

299

283

282

279

295

299

295

328

345

312

302

289

Aug.

254

245

254

273

276

276

236

242

286

299

312

282

270

273

282

292

279

286

276

270

299

286

292

273

270

289

283

292

312

328

358

Mean

437

510

1,330

1,747

1,496

1,093

878

431

649

484

326

282

334

687

Sept.

381

361

351

312

299

328

342

374

355

348

355

351

381

438

421

408

361

342

355

358

348

318

302

289

266

266

254

242

251

248

-

Runoff in 

acre-feet

26,870

30,340

81,750

1,265,000

91,970

60,720

53,980

25,640

39 920

2s!790

20,050

17,350

19,840

497,200

a No gage-height record; discharge computed on basis of recorded range in stage.
SAN JOAQUIN RIVER MAIN STEM 221

San Joaquin River near Vernalis, Calif.

Location.- Water-stage recorder, lat. 37°40'34", long. 121°15'51", in El Pescadero Grant, 

at uurnam Perry 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 1947 (1922-23, 1926-29, low-water records 

only).

Average discharge.- 18 years (1929-47), 5,395 second-feet.

Extremes.- Maximum discharge during year, 4,430 second-feet Dec. 14 (gage height, 10.53 

reet); minimum, 440 second-feet Aug. 2.

1922-47: Maximum discharge recorded, 51,200 second-feet Mar. 16, 1938 (gage height, 

26.64 feet), including flow through break in levee; maximum gage height, 27.06 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 or no gage-height record, 

wmch are fair. Practically entire flow of river diverted during irrigation season; 

low flows comprised mainly of return water.

Cooperation.- Eleven discharge measurements furnished by Bureau of Reclamation.

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

Oot.

1,460

1,520

1,590

1,660

1,730

1,760

1,800

1,800

1,770

1,800

1,910

1,910

1,920

1,930

1,940

2,000

2,090

1,970

1,870

1,820

1,830

1,800

1,810

1,820

1,820

1,810

1,780

1,720

1,710

1,820

2,080

Nov.

2,190

2,210

2,230

2,210

2,200

2,310

2,340

2,310

2,360

2,380

2,360

2,270

2,380

2,560

2,560

2,520

a2,500

a2,500

a2,600

a2,750

a2,900

3,000

3,170

3,310

3,170

2,990

32,900

d3,200

d3,100

d3,000

-

Dec.

d3,400

d3,750

d3,600

d3,550

d3,550

d3,550

d3,550

d3,600

d3,500

d3,700

3,890

4,090

4,270

4,320

4,270

4,150

4,050

4,080

4,050

4,010

3,890

3,650

3,130

2,880

2,950

2,930

2,820

2,780

3,120

3,490

3,560

Jan.

3,470

3,440

3,480

3,440

3,290

3,140

3,050

2,960

2,900

2,830

2,780

2,740

2,720

2,710

2,670

2,640

2,610

2,620

2,650

2,570

2,530

2,480

2,480

2,460

2,460

2,470

2,480

2,500

2,600

2,530

2,550

Feb.

2,560

2,560

2,520

2,510

2,480

2,470

2,430

2,420

2,340

2,270

2,220

2,220

2,250

2,300

2,410

2,520

2,550

2,520

2,460

2,430

2,400

2,390

2,380

2,340

2,340

2,380

2,380

2,350

_

-

Month

October. ...................................

November. ........................ .........

December. ..................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

2,330

2,300

2,260

2,310

82,400

82,300

a2,200

82,100

a2,100

2,070

2,110

2,150

2,260

2,500

2,540

2,580

2,610

2,510

2,440

2,490

2,570

2,380

2,380

2,110

1,880

1,940

2,060

2,150

2,320

2,060

1,640

Apr.

1,950

2,130

2,060

1,970

1,880

1,760

1,620

1,490

1,360

1,330

1,280

1,219

1,140

1,120

1,000

935

990

al,600

al,950

al,900

al,900

al,950

a2,000

al,400

al,200

al,150

al,100

al,050

al,100

al,100

-

Secondfoot-days

56,250

78,480

112,130

1,710,780

86,250

67,400

70,050

44,625

63,420

28,274

16,327

17,651

32,214

673,071

May

1,070

1,240

1,830

2,460

2,890

3,090

3,060

3,150

2,940

2,190

1,970

1,920

1,690

1,510

1,370

1,360

1,380

1,540

1,700

1,670

1,690

1,800

1,920

2,310

2,590

2,560

2,440

2,230

2,080

1,940

1,830

Maximum

2,090

3,310

4,320

16,500

3,480

2 560

Z, 610

2,130

3 150 1)720 617

697

1,390

4,320

June

1,720

1,630

1,490

1,290

1,240

1,180

1,140

1,160

1,150

1,100

1,090

1,180

1,060

984

962

902

790

693

652

626

613

661

666

652

630

609

609

581

584

630

-

Minimum

1,460

2,190

2,780

1,090

2,460

2 220 1)540

935

1,070

581

460

453

750

453

July

596

588

600

596

558

592

617

596

558

518

500

500

54o

565

543

507

500

479

466

469

482

486

469

460

476

482

525

543

536

504

476

Aug.

466

453

476

558

543

525

522

518

504

514

588

577

540

518

547

550

613

648

638

577

522

562

596

656

674

638

600

600

605

626

697

Mean

1,815

2,616

3,617

4,687

2,782

2,407

2,260

1,488

2,046

942

527

569

1,074

1,844

Sept.

780

830

805

830

805

750

825

1,010

957

924

913

874

891

940

1,030

1,200

1,260

1,250

1,270

1,280

1,360

1,390

1,350

1,310

1,300

1,240

dl,210

dl,210

dl,210

dl,210

-

Runoff in 

acre feet

111,600

155,700

222 * 400

3,393,000

171,100

133,700

138,900

88,510

125; 800

56,080

32,380

35,010

63,900

1,335,000

a No gage-height record; discharge computed on basis of records for upstream stations.

d Doubtful gage-height record; discharge computed on basis of records for upstream stations.
222 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER

Florence Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°17', long. 118°58', in SEij sec. 36, T. 7 S.,

R. 27 E., in gatehouse of Ward tunnel intake, near dam on South Fork San Joaquin River, 

16 miles northeast of town of Big Creek. Datum of gage is at mean sea level.

Drainage area.- 171 square miles.

Records available.- November 1925 to September 1947.

Extremes.- Maximum contents during year, 64,000 acre-feet July 3-5; maximum elevation, 

7,327.1 feet July 4; minimum contents, 215 acre-feet Jan. 28 (elevation, 7,224.2 feet).

1925-47: 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. 

Usable capacity, 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. 168 acre-feet is not available for release. Water is diverted through 

Ward tunnel to Huntington Lake and used for power development in Big Creek plants. 

Records show contents at 12 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 Co.miission project.

Contents, in acre-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.

24,400

34,500

24,900

25,100

24,900

24,600

24,300

23,900

23,600

23,300

23,200

23,400

23,500

23,700

23,800

24,000

24,100

24,300

23,100

21,000

20,300

20,400

20,600

20,700

20,800

20,900

21,000

21,100

21,200

20,100

18,400

Nov.

16 , 900

15,600

14 , 500

13,600

12,600

11,700

10,700

9,480

8,310

7,200

6,150

5,400

5,080

5,170

5,250

5,080

4,450

3,850

3,190

2,490

2,270

2,580

3,460

3,940

4,350

4,410

4,100

3,690

3,270

2,860

-

Dec.

2,510

2,040

1,510

924

646

456

37S

350

334

324

314

307

307

304

302

292

287

279

281

280

276

272

271

303

337

330

314

315

303

289

291

Jan.

291

275

272

276

276

272

267

264

253

248

243

240

227

220

222

226

225

222

221

221

222

221

220

219

220

220

213

215

230

235

231

Feb.

229

230

231

231

231

235

236

235

237

241

241

286

278

475

267

258

256

255

257

253

250

249

251

258

263

263

258

252

_

_

-

Mar.

249

258

256

263

253

251

247

244

a244

a249

a253

a248

263

276

297

320

342

356

355

351

359

380

387

360

344

351

363

370

354

343

Apr.

336

321

320

316

305

297

294

293

296

314

354

397

482

608

752

899

974

1,040

1,180

1,300

1,210

926

739

670

623

604

630

607

658

965

339 |

May

2,520

5,340

7,370

9,320

11,900

14,200

16,300

18,000

18,900

19,400

19,600

19,100

18,300

17,600

17,100

17,600

18,800

20,400

22,300

24,400

26,800

29,400

32,000

34,300

36,600

38,500

39,600

40,100

40,800

41,600

41,900

June

42,100

42 , 200

42,100

41,700

41,200

40,800

41,100

41,300

41,600

42,600

44,200

45,700

47,300

49,000

50,900

52,600

54,100

55,700

57,400

59,100

60,400

61,400

62,400

62,900

63,000

62,900

63,000

63,200

63,400

63,500

-

July

63,500

63,800

64,000

64,000

64,000

63,900

63,900

63,900

63,900

63,900

63,800

63,700

63,400

63,100

62,700

52,400

62,000

61,600

61,200

60,700

60,200

59,700

59,200

58,600

58,000

57,300

56,600

55,800

55,000

54,200

53,400

Aug.

52 , 500

51,600

50,700

49,900

49,000

48,200

47,300

4fi,500

45,700

44,900

44,100

43,300

42,600

41,300

41,100

40,300

39,600

38,800

38,000

37,200

36,400

35,600

34,800

34,000

33,200

32,400

31,500

30, 700

29,900

28,900

28,000

Sept.

27,000

26,100

25,300

24,300

23,300

22,300

21,300

20,300

19,300

18,300

17,400

16,400

15,500

14,600

13,700

12,800

12,000

11,200

10,400

9,570

8,770

7,980

7,230

6,480

5,760

5,020

4,280

3,550

2,850

2,290

a Ho gage-height record; contents estimated.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Nov. 30................

Dec. 31.... ............

Calendar year 134S...

Mar. 31................

Sept. 30.'. ..............

Water year 1946-47...

Elevation 

(feet)

,225.1

-

302 5

315 7

' PDA 7

,237.3

-

Contents 

(acre-feet)

24 400

291

-

231

252

339

2,290

-

Change In contents 

during month' 

(acre-feet)

-2,570

-5,330

-25,700

-22,100
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 223 

South Pork San Joaquin River near Florence Lake, Calif.

Location.- Water-stage recorder, lat. 37°16'20", long. 118°57'50", in SE£ see 36 T 7 

fvAm R0fZ n" i A????s$realS from sPnlway 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 1947.

u

' 4>32° secon<J-feet June 6 - "40 (gage height, 15.38

Lake (see precedlng page) by

HoMthnrg fn u several discharge measurements, furnished by boutnern California Edison Co., obtained in connection with a Federal Power 

Commission project.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

7.82

7.9

8.0

8.1

8.2

8.3

8.4

8.5

8.6 

8.8

0.8 

1.1 

1.5 

1.8 

2.6

9.0

9.2

9.3

3.6 

4.5 

5.0

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

Oct.

al.5

a. 9

a. 9

a. 9

a. 9

a. 9

.9

.9

1.5

3.O

3.0

3.0

3.0

3.0

3.0

3.1

3.0

3.1

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

Nov.

2.9

2.9

2.8

2.8

2.8

2.7

3.1

3.3

3.2

3.1

3.1

3.0

3.O

3.0

3.0

3.O

3.0

3.0

3.?

3.2

2.9

3.7

4.4

3.O

3.0

3.O

2.0

.8

.8

.8

-

Dec.

0.8

.8

.8

.5

l.O

.2

.1

.1

.1

O

O

O

O

0

O

O

O

O

O

0

O

O

0

.2

.4

.2

.1

.1

.1

.1

O

Jan. Feb.

0

O

O

O

O

O

O

O

0

.1

0

.3

.2

.1

.1

.1

.1

.1

.1

0

0

O

_

_

-

Month

October. ....................................

December ...................................

Calendar year 1946 ......................

March ....... . . ... . . ....

Apri 

Hay

1.. ....................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

0.1

.1

.1

O

O

O

O

.1

O

.1

.1

.1.1.1

.2

.2

.2

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

.2

.1

.1

.1

Apr.

0.1

.1

.1

.1

O

O

O

0

0

0

0

0

o

0

0

o

0

0

o

o

0

0

.7

1.9

1.9

2.1

2.1

1.9

1.9

1.1

Seoondfoot-days

OA C

5.6

586.4

14.0 

34 4

103.7

6O5.1

May

0.6

.6

.6

.7

.7

.7

.8

.9

.8

.8

.9

.8

.8

.O

.2

.2

.2

.3

1.3

1.3

1.3

1.4

1.4

1.4

1.4

1.5

1.6

1.5

1.5

1.6

1.6

Maximum

1.0

67

2.1

3 2

4.6

4.8

June

1.6

1.6

1.6

1.9

2.2

2.2

2.3

2.2

2.3

2.3

2.3

2.3

2.4

2.4

2.8

3.1

3.2

2.5

2.0

2.1

2.1

2.2

2.3

2.3

2.3

2.6

2.9

2.9

2.9

2.9

-

Minimum

O

0

0

2 8

2.1

O

July

2.9

2.8

2.9

2.9

2.9

2.9

3.0

2.9

2.8

2.8

2.8

2.8

2.8

2.8

2.8

3.2

3.6

3.6

3.5

3.5

3.5

3.5

3.4

3.4

3.4

3.4

3.3

3.3

3.2

3.2

3.2

Aug.

3.2

3.1

3.1

3.6

3.8

3.6

3.6

3.6

3.6

3.5

3.5

3.5

3.5

3.5

3.4

3.4

3.4

3.4

3.3

3.3

3.3

3.3

3.3

3.2

4.2

4.8

4.8

4.8

4.8

4.7

4.7

Mean

.18

1.61

.47

3 70

3.46

1.66

Sept.

4.6

4.6

4.6

4.4

4.0

3.8

3.7

3.7

3.7

3.7

3.6

3.6

3.6

3.5

3.5

3.5

3.6

3.0

2.1

2.1

2.1

2.3

2.7

3.2

3.6

3.5

3.5

3.4

3.3

3.2

-

Runoff in 

acre- feet

11

1,160

28

206

1,200

a No gage-height recordj discharge computed on basis of records of fish-gate operation and weather 

records.
224 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Ward tunnel at intake, Calif.

Location.- Water-stage recorders, concrete control, and venturi meter, lat. 37°17', long. 

liB"t>8' , in SE-J- sec. 36, T. 7 S., R. 27 E., in gatehouse at entrance to tunnel. Altitude of gages, about 7,350 feet (from topographic map).

Records available.- April 1925 to September 1947.

Average discharge.- 21 years (1925-31, 1932-47), 262 second-feet.

Extremes.- Maximum daily discharge during year, 1,080 second-feet Oct. 20; minimum daily, 

U.Y second-foot Nov. 22, 25.

1925-47: Maximum daily discharge, 1,990 second-feet Apr. 30, 1926; no flow at times

Remarks.- Records excellent except those for period of no gage-height record, which are 

good. Ward tunnel diverts from Florence Lake, a reservoir on South Fork San Joaquin 

River, to Huntington Lake for use in Big Creek power plants.

Cooperation.- Water-stage recorder graph and rating table for venturi meter, furnished by 

Southern California Edison Co..obtained in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1946 to September 1947

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

28

30

31

Oct.

205

1.4

1.4

1.4

147

241

241

241

240

238

95

1.6

1.6

1.6

1.6

1.6

1.6

1.6

677

1,080

416

1.3

1.3

1.2

1.2

1.3

1.3

1.4

1.6

577

887

Nov.

787

686

577

506

499

491

597

635

614

591

568

414

204

. £

.8

122

317

306

363

386

202

.7

.6

.6

.7

126

266

301

291

280

-

Dec.

270

323

352

390

366

254

178

138

115

108

102

96

93

95

90

90

85

80

74

76

76

74

74

85

115

110

110

100

90

85

80

Jan.

35

75

70

72

74

74

70

63

72

72

70

67

63

52

SO

54

55

52

52

52

53

54

53

52

52

54

53

51

54

62

61

Feb.

60

57

57

58

58

59

61

61

62

63

65

78

92

89

90

85

79

76

75

75

71

71

72

76

81

84

83

76

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. ............................ .... ...

April ......................................

Hay. .......................................

July.. .....................................

September ..................................

Water year 1946-47 ......................

Mar.

75

78

80

76

80

73

74

72

68

72

73

74

78

86

97

112

128

143

149

146

145

158

177

160

146

143

158

160

152

148

138

Apr.

141

130

123

115

115

110

104

104

104

105

131

157

191

244

317

409

484

497

556

635

650

626

475

380

341

g310

g30B

g309

312

409

-

Secondfoot days

5,311.0

10,113.7

4,374

133,574.7

1,898

2,014

8,891

16,513

10,819

15,104

13,962

101,673.2

Hay

234

178

434

452

475

497

516

484

410

413

514

858

974

969

959

689

448

440

448

460

423

408

418

428

433

443

537

640

640

645

646

Maximum

1,080

767

390

1,140

92

177

650

974

777

506

520

546

1,080

June

645

645

690

777

774

770

708

676

674

360

1.4

.4

.4

.3

.3

.4

.4

.3

.3

.8

.9

.8

.8

219

421

491

379

310

310

286

-

Minimum

1.2

.7

' 74

.7

50

57

68

104

178

1.3

195

455

326

.7

July

270

220

195

246

280

278

252

227

228

228

228

265

501

326

366

364

364

364

392

410

410

410

408

433

452

450

478

493

489

486

506

Aug.

520

516

514

512

508

506

504

502

502

497

493

491

491

489

484

486

482

480

480

473

471

471

466

464

457

457

455

455

475

506

497

Mean

171

337

141

366

61.2

71.9

114

296

533

305

349

487

465

279

Sept.

491

486

484

524

546

539

535

530

524

516

510

506

497

491

484

478

473

471

464

457

448

438

428

418

408

394

381

366

349

326

-

Runoff in 

acre-feet

10,530

20,060

8,680

264,900

3,760

3,990

6,980

17,640

32,750

18,160

21,460

29,960

27,690

201,700

g Computed from graph based on ga 

Note.- No gage-height record Dec. 

of Florence Lake.

;e readings and recorded range in stage. 

15 to Jan. 7j discharge computed on basis of relation to stage
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 225

Ward tunnel at outlet, Calif.

Location.- Water-stage recorder, lat. 37D 16', long. 119°09', in SE£ sec. 5, T. 8 S., R. 

2fc> K. , just upstream from tunnel outlet at east end of Huntington Lake, 6 miles northeast of Big Creek. Altitude of gage, about 7,000 feet (from topographic map).

Records available.- November 1927 to September 1947. 

Average discharge.- 19 years (1928-47), 440 second-feet.

Extremes.- Maximum daily discharge during year, 1,440 second-feet May 13; minimum riaily, 

a.a second-feet Nov. 15.

1927-47: 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 South Fork San Joaquin River. See record for Ward tunnel at intake on preceding 

page.

Cooperation.-Water-stage recorder graph, furnished by Southern California Edison Co. 

obtained in connection with B Federal Power Commission project.

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

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

393

125

128

112

218

331

329

332

323

320

205

88

86

84

81

80

86

73

609

1,140

608

56

52

57

59

67

63

53

35

486

929

Nov.

827

728

636

550

539

536

615

680

658

646

615

489

302

41

3.8

159

357

352

399

416

287

112

162

141

146

230

365

400

383

369

-

Dec.

355

393

432

459

449

367

285

236

206

198

185

178

174

179

174

169

162

150

150

152

150

146

145

154

208

209

200

175

179

167

162

Jan.

172

150

142

146

150

150

142

140

146

150

148

140

135

117

116

120

119

116

115

116

115

116

115

115

115

118

116

112

118

132

132

Feb.

128

128

126

130

129

134

135

137

136

139

141

153

177

178

180

172

 162

163

159

162

151

153

159

169

178

181

178

166

_

-

Month

October ....................................

November ......................... .........

December . ..................................

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March ............:.........................

April ......................................

May. .......................................

June .......................................

Jnly. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Note.- No record from water-stage recorder

liar.

164

167

171

167

171

157

162

158

149

158

158

166

174

187

209

242

268

300

302

294

301

332

353

317

303

307

345

327

313

313

301

Apr.

305

281

272

253

253

247

235

235

234

241

291

346

424

550

678

846

984

990

1,100

1,240

1,140

1,060

844

719

576

610

595

591

617

827

-

Secondfoot-days

7,608

12,153.8

6,948

216,962.8

4,034

4,304

7,436

17,684

35,370

24,750

16,242

17,158

15 t 198

168,885.8

Jan. 31, Pe

May

935

815

1,090

1,100

1,130

1,150

1,160

1,130

1,040

1,020

1,000

1,280

1,440

1,370

1,410

1,330

1,090

1,080

1,090

1,110

1,090

1,070

1,080

1,080

1,030

1,030

1,140

1,240

1,250

1,250

1,240

Maximum

1,140

827

459

1,730

172

181

353

1,240

1,440

1,310

593

605

586

1,440

b. 5 to Mir

June

1,220

1,230

1,170

1,260

1,250

1,230

1,310

1,280

1,280

1,040

625

618

618

620

618

617

613

612

612

612

573

418

388

564

788

355

779

689

651

610

-

Minimum

35

3.8

145

3.8

112

126

149

234

815

388

424

494

360

3.8

July

583

526

468

497

536

532

504

453

440

435

424

450

489

502

537

534

531

523

540

562

552

544

536

544

561

549

565

581

574

576

593

Aug.

605

596

590

590

584

581

574

571

576

579

563

559

568

584

581

569

566

556

550

542

532

524

518

510

505

500

496

494

508

545

537

Mean

245

405

224

594

130

154

240

589

1,141

825

524

553

507

463

Sept.

529

524

521

550

586

579

574

568

561

552

545

539

531

521

513

505

521

545

532

513

499

483

483

465

453

438

422

400

381

360

-

Runoff in 

acre-feet

15,090

24,110

13,780

430,300

8,000

8,540

14,750

35,080

70,160

49,090

32,220

34,030

30,140

335,000

. 10; discharge computed from grap

based on readings every 4 hours.
226 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PHESNO RIVER

Bear Creek near Vermilion Valley, Calif.

Location.- Water-stage recorder, lat. 37°20', long. 118°58', in SW£ sec. 12, T. VS., H.

 27 K., 2 miles upstream from mouth and 4 miles by trail south of Vermilion Valley. 

Altitude of gage, about 7,400 feet (from topographic map).

Drainage area.- 53.5 square miles.

Records available.- November 1921 to September 1947.

Average discharge.- 23 years (1922-30, 1932-47), 88.0 second-feet.

Extremes.- Maximum discharge during year, 683 second-feet May 22 (gage height, 5.56 feet);

 minimum, 5.3 second-feet Sept. 15-17.

1921-47: 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 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 Kedoral Powcjr >.'omiiiit;sio,i 

project.

Rating table, water year 1946-47, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

3.0

3.1

3.2

3.3

3.4

3.0

6.5

12

18

26

3.5

3.6 

3.8 

4.0 

4.4

71

100

176

4.8 

5.0 

5.3

302

390

540

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.

43

51

51

45

42

35

34

37

33

33

36

37

36

34

32

34

34

29

30

28

27

26

25

25

24

24

b21

b!5

b!2

b!2

b!2

Nov.

b22

-

Dec.

(»)

 b27

Jan.

(*)

 b23

Feb.

(»)

. b25

_

-

-

Month

October. ................................

November. ........................ .........

December. ..................................

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March. .....................................

April .....................................

May. .......................................

June .......................................

Jnly. ................................... .

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

>

(*)

> b26

47

50

54

50

47

50

56

54

46

45

50

57

50

46

47 .

46

Apr.

47

43

42

38

37

37

35

»3?

35

38

51

62

81

105

125

154

158

163

190

198

148

121

100

90

90

81

79

78

91

171

Secondfoot-days

962

660

837

36,690

713

700

1,185

2 723

10^199

6,257

1 f 888

799

340.5

27,263.5

May

309

425

450

475

495

485

440

372

233

174

154

138

127

125

152

206

240

279

372

430

460

500

495

455

445

395

315

240

261

302

250

Maximum

51

-

490

57

198

500

311

110

44

22

500

June

206

198

163

158

161

163

240

230

254

298

283

237

264

298

311

279

247

264

291

294

198

154

144

140

136

132

140

140

123

111

-

Minimum

12

-

11

_

_

3S

125

111

3011

5.3

5.3

July

110

105

96

90

88

86

84

77

7,4

71

67

63

62

59

58

57

58

57

54

53

51

50

46

43

39

36

33

31

30

30

30

Aug.

29

27

25

25

25

25

24

24

26

29

27

25

30

44

44

38

40

35

33

30

27

24

22

20

18

17

16

14

13

12

11

Mean

31.0

22

27

101

23

25

38.2

90.8

329

209

60. 9

25.8

11.4

74.7

Sept..

10

10

9.5

9.0

8.5

8.0

7.5

7.5

7.5

7.0

6.5

6.1

6.1

5.7

5.3

5.3

14

22

20

17

16

17

19

17

17

14

13

12

12

11

-

Runoff in 

acre-feet

1,910

1,310

1,660

72,770

1,410

1,390

2,350

5,400

20,230

12,410

3,740

1,580

675

54,060

* Winter discharge measurement made this day. 

b Stage-discharge relation affected by ice.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 227

Mono Creek near Vermilion Valley, Calif.

Location.- Water-stage recorder, lat. 37-°22', long. 118°59', in SW£ sec. 35, T. 6 S., R.

a? E. (unsurveyed), 1 mile downstream from lower end of Vermilion Valley and 6 miles

downstream from North Fork. Altitude of gage, about 7,400 feet (from topographic map). 

Drainage area.- 92.0 square miles. 

Hecords available.- November 1921 to September 1947. 

Average dlscnargeT- 23 years (1922-30, 1932-47), 149 second-feet. 

Extremes.- Maximum discharge during year, 988 second-feet May 22 (gage height, 7.43 feet);

minimum, 20 second-feet Oct. 29, Sept. 15, 16.

1921-47: 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 periods of ice effect or no gage-height record,

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.

Rating table, water year 1946-47, except period of Ice effe 

(gage height, In feet, and discharge, In second-feet)

4.9

5.0

5.1 

5.3 

5.5

164

266

395

595

800

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.

72

59

59

51

50

45

45

48

42

a42

a45

a48

a45

a43

a42

a45

a45

a4O

a42

a41

a40

a39

a38

38

38

37

36

b28

b26

b26

b26

Nov.

. b38

-

Dec.

> b46

Jan.

(»)

 b39

Feb.

(*)

, b43

_

-

-

Month

October. ...................................

November. ........................ .........

December ...................................

Calendar year 1946 ......................

January .................................. .

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

.

(»)

, b50

,

67

74

81

80

SO

85

96

98

85

85

93

102

96

91

96

93

Apr.

93

87

85

80

80

78

76

*76

76

80

93

107

128

164

195

240

274

278

315

349

306

255

219

205

202

180

170

164

176

244

-

Secondfoot-days

1,321

1,140

1,426

59,789

1,209

1,204

2,152

5,075

16,334

9,458

3,264

1, 267

852

44,702

May

390

575

675

685

725

74O

715

655

465

372

319

294

282

266

298

386

455

510

585

635

685

745

756

685

665

610

505

405

420

450

381

Maximum

72

-

772

102

549

756

425

183

53

48

756

June

345

349

306

298

298

286

363

358

381

420

410

349

372

410

425

381

349

354

372

400

298

236

229

226

219

215

219

215

192

183

-

Minimum

26

-

24

76

266

183

53

25

21

21

July

183

170

158

153

150

150

142

134

128

126

118

114

114

109

104

102

102

98

93

^3

85

83

78

72

67

60

1.7

54

b3

57

57

Aug.

53

49

48

49

48

46

45

45

50

51

46

44

51

53

50

46

45

42

42

40

38

34

32

30

29

28

28

27

27

26

25

Mean

42.6

38

46

164

39

43

69.4

169

527

315

105

40.9

28.4

122

Sept.

24

24

25

25

25

26

26

25

25

24

23

23

22

21

21

21

38

48

44

38

34

34

38

33

31

29

28

26

26

25

-

Runoff in 

acre-feet

2,620

2,260

2,830

118,600

2,400

2,390

4,270

10,070

32,400

18,760

6,470

2,510

1,690

88,670

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Bear Creek near Vermilion 

Valley.

b Stage-discharge relation affected by Ice (no gage-height record Dec. 2O to .ran. 6, Jan. 8 to 

Mar. 3; discharge computed (3n basis of records for Ward tunnel at Intake and at outlet).
228 SAN JOAQUIN TRIBUTARIES ABOVE FRESNO RIVER

Huntington Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°14', long. 119°13', in SWi sec. 14, T. 8 S., R.

25 E., in gate tower of dam 1 on Big Creek, 2 miles northeast of town of Big Creek.

Datum of gage is at mean sea level. 

Drainage area.- 79.0 square miles. 

Records available.- October 1926 to September 1947. 1913 to 1926, summary records only,

in Water-supply Paper 881. 

Extremes.- Maximum contents during year, 88,700 acre-feet July 7 (elevation, 6,949.7

feet); minimum, 34,600 acre-feet Mar. 21, 22 (elevation, 6,904.2 feet).

1913-47: Maximum contents, 90,000 acre-feet May 23, 1926 (elevation, 6,950.8

feet); minimum, 1,860 acre-feet Mar. 8, 1935 (elevation, 6,839.0 feet). 

Remarks.- Lake is formed by four dams; storage began Apr. 11, 1913. Dams were raised in

1914 and again in 1917. Usable capacity, 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. Dead storage, 600 acre-feet. Prior to Oct. 1, 1946, usable capacity,

88,800 acre-feet above elevation 6,824.4 feet (center line of outlet tunnel No. 1).

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.

Contents, in thousands of acre-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.

88.6

88.0

87.7

87.3

87.1

87.4

87.5

87.5

87.5

87.5

87.2

86.8

86.5

86.0

85.5

85.0

84.4

83.6

84.0

85.9

86.2

85.4

84.5

83.8

83.1

82.5

82.1

81.4

80.7

80.6

81.6

Nov.

82.3

82.9

83.6

83.8

84.0

84.2

84.6

85.2

85.8

86.5

87.0

87.2

87.2

86.5

85.9

85.6

86.0

86.0

86.8

87.4

87.3

87.0

87.5

87.5

87.2

86.8

'86.8

87.0

87.0

86.9

-

Dec.

87.1

87.0

86.9

86.9

87.4

87.3

87.1

87.0

86.5

86.0

85.4

84.7

84.1

83.4

82.9

82.4

81.6

81.0

80.3

79.6

78.9

78.4

77.8

77.4

77.7

77.6

77.4

77.1

76.7

76.3

75.8

Jan.

75.3

74.8

74.2

73.7

73.3

72.7

72.2

71.5

70.9

70.3

69.8

69.3

68.8

68.3

67.7

67.2

66.6

66.0

65.5

64.9

64.3

63.8

63.2

62.7

62.1

61.5

61.0

60.5

60.0

59.4

58.9

Feb.

58.4

57.8

57.3

56.8

56.3

55.8

55.3

54.9

54.5

54.0

53.5

53.2

52.8

52.3

51.6

51.1

50.5

49.7

49.0

48.2

47.6

47.1

46.7

46.4

45. 0

45.6

45.1

44.5

_

-

Mar.

43.8

43.4

42.8

42.2

41.5

40.8

40.1

39.4

38.8

38.2

37.6

36.9

36.3

35.8

35.4

35.2

35.0

34.8

34.8

34.7

34.6

34.6

35.2

35.3

35.2

35.1

35.3

35.4

35.5

36.0

36.1

Apr.

36.1

36.0

36.0

35.8

35.7

36.0

35.8

35.6

35.3

35.1

35.0

35.2

36.0

36.7

37.6

39.0

40.8

42.6

44.8

47.7

50.2

52.4

53.8

54.9

55.9

56.8

58.0

58.8

59.8

61.3

-

May

63.5

65.0

66.1

67.6

68.5

69.0

69.3

69.4

69.0

68.6

68.6

68.6

68.9

69.1

69.4

69.9

70.0

70.4

70.2

70.5

71.2

71.8

71.9

71.5

71.4

71.1

71.6

72.2

73.0

74.1

74.8

June

75.9

76.5

77.1

77.9

78.7

79.5

80.4

81.7

82.6

83.5

83.9

84.3

84.7

85.0

85.5

85.9

86.2

86.6

87.0

87.4

87.7

87.5

86.9

87.0

87.6

87.9

87.6

87.6

88.2

88.5

-

July

88.5

88.2

88.2

88.2

88.3

88.6

88.7

88.6

88.4

88.2

87.9

87.8

87.8

87.7

87.7

87.6

87.6

87.5

87.4

87.4

87.5

87.4

87.3

87.2

87.2

87.1

87.2

87.2

87.3

87.3

87.3

Aug.

87.3

87.3

87.5

87.6

87.6

87.6

87.6

87.5

87.6

87.6

87.6

87.6

87.6

87.6

87.6

87.5

87.8

87.8

87.7

87.7

87.7

87.6

87.5

87.5

87.5

87.4

87.3

87.1

87.0

87.0

87.2

Sept.

87.4

87.4

87.3

87.3

87.3

87.3

87.4

87.5

87.5

87.6

87.6

87.6

87.6

87.7

87.7

87.6

87.8

87.8

87.8

87.8

87.8

87.8

87.8

87.7

87.6

87.6

87.5

87.6

87.5

87.2

-

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31...... ..........

Calendar year 1946...

Hater year 1946-47...

Elevation 

(feet)

6,940.3

-

-

Contents 

(acre-feet)

75,800

-

*

-

Change In contents 

during month 

(acre-feet)

-11,100

+16,900

-1,400
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVhR

Big Creek below Huntington Lake, Calif.

Location.- Water-stage recorder, Parshall flume and concrete control, lat. 370 13'10", 

 long. 119" 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.- square miles.

Records available - June 1925 to September 1947 (records prior to October 1929 only for 

periods or spill from Huntington Lake).

Extremes.- Maximum discharge during year, 17 second-feet (regulated) Nov. 23 (gage height,

 1.B3 feet); minimum, 0.2 second-foot Aug. 31 to Sept. 7, Sept. 15, 16.

1925-47: Maximum discharge, 2,040 second-feet June 23, 1925 (gage height, 10.3 

feet), siphon spillways operating at Huntington Lake); minimum, 0.1 second-foot 

Sept. 10-13, Oct. 7-18, Dec. 5-16, 1931.

Remarks.- Records excellent except those for periods of Ice effect, which are poor.

 Natural flow of-Big Creek is stored at Huntington Lake and during most of year is diverted for power development at Big Creek powerhouse No. 1.

Cooperation.- Water-stage recorder graph and several discharge measurements, furnished by

 Southern California Edison Co. obtained in connection with a Federal Power Commission 

project.

Rating table, water year 1946-47, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

0.2 0.24

.4 .71

.6 1.30

0.8 

1.0 

1.2

1.98

2.76

3.62

1.4 4.56

1.6 5.6

1.7 9.6

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

'31 30

Oct.

2.

Nov.

0.4

.4

.4

.4

. 4

.4

.4

.5

.4

.4

.4

.4

.4

5

.5

.5

.5

.5

.7

1.0

.7

.9

7.9

1.8

1.3

1.2

1.1

1.0

.9

.9

-

Dec.

0.9

.8

.8

.8

3.5

2.3

1.6

1.3

1.2

1.1

1.0

1.0

.9

.9

.9

.9

.8

.8

.8

.8

.8

.7

.7

1.4

2.4

1.8

1.5

bl.O

b.9

b.8

b.8

Jan.

> tO. 6

Feb.

 t>0.6

i.

_

-

Month

October ....................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July..... ..................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

,

> to. 7

1.0

1.0

1.0

1.1

1.1

1.

1.

1.

1.

1.

1.

1.1.

1.1.

1.

1.1.

1.

1.7

1.5

Apr.

1.5

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.0

1.0

1.0

1.0

-

Secondfoot-days

15 4

2?! Z

35.9

1,027.7

18. 6

16 . 3

35.3

37. 2

23. 8

15 9

io!g

9.2

8.7

254.9

Hay

0.9

.9

.9

.8

.8

.8

.8

1.0

.9

.9

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

1.0

.7

.7

.8

.7

Maximum

2.4

7.9

3.5

143

1.7

1.5

1.0

.7

.4

.3

.6

7.9

June

0.7

.7

.7

.7

.6

.6

.7

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

-

Minimum

0.4

.4

.7

.3

1.0

.6

.4

.3

.2

.2

.2

July

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

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

.2

Mean

0.50

. 91

l!l6

2.82

.6

. 6

1.14

1 . 24 [77

.53

.35

30

!29

.70

Sept.

0.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.2

.2

.6

.5

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

-

Runoff in 

acre feet

31

54

71

2,040

37

33

70

74

47

32

22

18

17

506

b Stage-discharge relation affected by ice.

854211 O - 49 - 16
230 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Pitman Creek below Tamarack Creek, Calif.

Location.- Water-stage recorder, lat. 37°12', long. 119°12', in NWi sec. 35, T. 8 S., R. 

25 E., 500 feet downstream from Tamarack Creek, 3 miles upstream from mouth, and 3 

miles southeast of town of Big Creek. Altitude of gage, about 7,100 feet (from topographic map).

Drainage area.- 22.0 square miles.

Keeords available.- December 1927 to September 1947.

Average discharge.- 19 years, 39.0 second-feet.

Extremes.- Maximum discharge during year, 302 second-feet May 2 (gage height, 5.44 feet); 

minimum, 0.1 second-foot Aug. 29.

1927-47: 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 Nov. 1-22, which are fair. No diversion above

 station; practically all flow diverted below station to Huntington-Shaver conduit. 

Cooperation.- Water-stage recorder graph and several discharge measurements, furnished by

 Southern California Edison Co. obtained in connection with a Federal Power Commission 

project.

Rating table, water year 1946-47, except period 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

4.0 

4.4 

4.8 

5.0

108

146

192

222

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.

20

3.1

1.6

1.5

1.3

1.1

.9

.8

.6

.5

.4

.4

.4

.4

.5

.9

1.1

1.1

.9

.9

.8

*.8

.9

.8

.8

.8

.8

.8

.8

.6

.5

Nov.

0.4

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.7

1

16

27

21

15

11

9

8

7

-

Dec.

7

6

6

6

19

29

20

14

11

10

10

9

8

8

8

8

7

7

6

6

6

6

6

11

30

25

18

15

14

13

11

Jan.

11

9

9

9

9

9

8

8

8

8

8

8

8

7

7

6

6

6

6

6

6

6

6

6

6

6

6

6

7

6

6

Feb.

6

6

6

6

6

6

7

7

8

8

7

8

11

12

11

11

10

9

9

9

9

9

11

13

15

15

15

14

_

_

-

Month

October. ...................................

November . ..................................

December . ..................................

Calendar year 1946 ......................

January. ................................. .

February ............................. ....

Maroh. .....................................

April ......................................

May........................................

June .......................................

July .......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

13

14

13

12

12

11

11

11

11

11

13

13

16

19

22

27

*32

38

37

41

47

51

55

45

45

52

55

50

50

49

49

Apr.

49

44

42

38

36

35

35

36

36

41

57

78

101

124

143

158

*162

162

177

171

148

116

103

100

89

85

85

98

114

151

Secondfoot-days

46

123 7

360

14,358.0

223

264

923

2,814

3,113

530.8

56. 3

7.1

7.3

8,469.0

May

195

220

207

186

186

173

152

138

109

94

85

82

84

81 81

90

93

85

82

79

74

70

63

56

49

44

59

53

45

48

50

Maximum

20

27

30

349

11

15

55

177

220

41

4.3

.5

.6

220

June

41

38

34

32

31

29

30

28

25

24

22

19

18

16

15

14

13

12

11

10

9.2

8.6

8.0

7.4

7.1

6.5

6.0

5.7

5.4

4.9

Minim-am

0.4

.3

6

.1

6

6

11

35

44

4 c

.5

.2

.2

.2

July

4.3

4.1

3.8

3.6

3.4

3.1

2.9

2.7

2.2

2.2

2.2

2.0

2.0

1.8

1.6

1.6

1.5

1.3

1.1

1.1

.9

.9

.8

.8

.8

.8

.6

.6

.6

.5

.5

Aug.

0.5

.4

.4

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Mean

1.51

4.12

11.6

39.3

7.2

29. 8

100

17.7

1. 82

23

!24

23.2

Sept.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.6

.6

.5

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Runoff in 

acre-feet

93

245

714

28,490

442

524

1,830

5,580

6,170

1,050

112

14

14

16,790

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Oct. 31 to Apr. 9.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 231

Shaver Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°09', long. 119°18', in SE£ sec. 13, T. 9 S., R. 

24 E., at dam on Stevenson Creek and 6 miles southwest of town of Big Creek. Datum of 

gage is at mean sea level.

Drainage area.- 29.7 square miles.

Records available.- January 1927 to September 1947.

Extremes.- Maximum contents during year, 95,800 acre-feet June 10, 29; maximum elevation, 

b,35Q.7 feet June 10; minimum contents, 8^960 acre-feet Apr. 11 (elevation, 5,279.6 

feet) .

1927-47: 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 contents, 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.

usable capacity, 135,300 acre-feet between elevations 5,225 feet (trash-rack foundation) 

and 5,370 feet (crest of spillway) above mean sea level. Water is received from Huntington Lake and Pitman Creek through Huntington-Shaver conduit and released for power 

development in Big Creek plants. Records show contents at 12 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.

Contents, In acre-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.

78,600

78,600

78,000

77,200

76,700

76,500

76,000

75,600

75,100

74,700

74,200

73,900

73,700

73,200

72,500

72,000

71,400

70,800

70,400

70,300

69,700

69', 100

68,400

67,700

67,000

66,300

65,800

65,100

64,300

63,500

62,700

Nov.

62,100

61,400

61,100

60,400

59,600

58,800

57,900

57,100

56 , 300

55,900

55,300

54 , 500

53,700

52,900

52,100

51 , 300

50,800

49,900

50,500

50,800

50,500

50,100

51 , 300

51,400

50,700

49,900

49,100

48,400

47 , 600

47,100

-

Dec.

46,400

45,600

44,700

43,800

43,700

43,100

42,500

41,900

41,100

40,700

40,500

40,300

39,900

39 , 500

39,000

38,400

37,900

37,500

37,000

36,400

35,600

35,100

34,200

33,500

33,600

33,000

32 , 400

31,600

30,800

30,000

29,100

Jan.

28,800

27 , 900

27,000

26,100

25,300

24,500

23,800

23,200

22,700

22,200

21,700

21,500

20,900

20,300

19,700

19,100

18,500

18,000

17,700

17 , 200

16,700

16,200

15,800

15,500

15,300

15,400

15,000

14,600

14,400

14,100

13,800

Fab.

13,800

13,800

13,500

13,200

13,000

12,800

12,500

12,300

12,500

12,500

12,300

12,300

12,100

12,100

12,100

12,200

12,200

12,200

12,200

12,200

12,000

11,800

11,700

11,500

11,300

11,000

10,900

10,800

_

_

-

Mar.

10,800

11,000

11,000

11 , 000

11,000

10,900

10,900

10,800

10,900

10,900

10,900

10,800

10,800

10,700

10,700

10,700

10,900

10,900

10,800

10,700

10,500

10,000

10,300

10,000

9,820

9,660

9,490

9,470

9,420

9,660

9,530

Apr.

9,380

9,140

9,050

9,010

9,140

9,310

9,260

9,090

9,030

8,980

8,960

9,190

9,530

9,740

9,940

10,200

10,400

10,600

11,000

11,400

11,600

11,600

11,600

11,700

11,800

11,900

12,200

12,300

12,400

12,500

Hay

12,900

14,100

16,500

18,900

21,400

24,300

27,200

30,000

32,900

25,600

38,500

41,200

44,000

46,700

49,500

52,200

55,000

57,700

60,400

62,700

64,500

66,200 .

68,300

71,000

73,600

75,700

77,500

79,200

80,900

82,700

84,300

June

86,100

87,800

89,100

90,100

91,100

92,000

93,200

94,300

95,400

95,800

95,700

95,500

95,200

95,300

95,300

95,100

94,800

94,500

94,200

94,000

94,000

94,300

94,600

94,200

94,100

94,400

95,200

95,700

95,800

95,600

July

95,200

95,100

94,600

94,600

94,500

94,500

94,000

93 , 400

92 , 800

92,200

91,600

91,100

90,900

90,300

89,600

88,900

88,200

87,500

86,800

86,800

86,100

85,300

84,600

83,900

83,200

82,800

82,800

82,400

81,900

81,700

81,500

Aug.

81 , 400

81,300

81,300

81,100

80,800

80,400

79,800

79,300

78,800

78,500

77,900

77,300

76,800

76,300

75,700

75,300

75,100

74,600

74,000

73,500

72,900

72,300

71,800

71,500

.70,900

70,400

69,900

69,300

68,800

68,400

67,900

Sept.

67,700

67,200

66,700

66,100

65,500

65,000

64,800

64,200

63,700

63,200

62,500

62,000

61,400

61,000

60,400

59,900

.59,500

^9,000

58,500

57,900

57 , 700

57,100

56,600

56,000

55,500

54,900

54,400

54,300

53,700

53,200

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946...

Aug 31

Sept. 30. ...............

Water year 1946-47...

Elevation 

(feet)

-

5,324.7

-

Contents 

(acre-feet)

-

9 530

53,2OO

-

Change In contents 

during month 

(acre -feet)

-3,700

-14,700

-25,100
232 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. 93., 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 1947. 

Average discharge.- 18 years (1929-47), 200 second-feet.

Extremes.- Maxim-am daily discharge during year, 1,460 second-feet May 6; minimum daily, 

1.9 second-feet on many days in November, July to September.

1928-47: Maximum daily discharge, 1,780 second-feet June 3, 4, 1938; minimum daily, 

1.2 second-feet Dec. 28, 1944, to Jan. 2, 1945.

Remarks - Records good. Conduit diverts from Huntington Lake to Shaver Lake, with 

additions from Pitman Creek and seepage en route.

Cooperation.- Water-stage recorder graph and seven discharge measurements, furnished by 

Southern "California Edison Co. obtained in connection with a Federal Power Commission 

project.

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

80

81

82

83

84

85

86

87

88

89

30

31

Oct.

163

20

3.8

3.3

3.1

Z.I

2.6

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.6

2.6

2.6

2.4

2.4

2.4

» 2.2

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

Nov.

2.1

1.9

1.9

1.9

1.9

1.9

1.9

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.2

2.2

2.2

2.2

2.2

2.2

2.4

2.6

19

30

24

18

14

12

11

10

-

Dec.

10

9.3

8.9

8.6

22

32

23

17

14

13

13

12

11

11

11

11

10

9.6

9.3

9.3

9.3

9.3

9.3

14

33

28

21

18

17

16

14

Jan.

14

12

12

12

12

12

11

11

11

11

11

11

11

10

10

9.6

9.3

9.3

9.3

9.3

9.3

9.3

9.3

9.3

9.3

9.3

9.6

9.6

10

9.3

8.9

Feb.

8.9

8.9

8.9

8.9

9.3

9.3

10

10

11

11

1011

14

15

14

14

13

12

12

12

12

12

14

16

18

18

18

17

_

_

-

Month

October. ...................................

November. .......................... ....

December ...................................

Calendar year 1946 ...................

January. .............................

February. .................................

March. .....................................

April ................................... .

May. .......................................

June .......................... ....... .

July. ......................................

August .....................................

September. ..............................

Water year 1946-47 ............. ......

Mar.

16

17

16

15

15

14

14

14

14

14

16

16

19

22

25

30

35

41

40

44

50

54

58

48

48

55

58

53

51

52

52

Apr.

52

47

45

41

39

38

38

39

43

51

67

86

113

132

150

163

165

165

179

177

156

127

115

112

102

98

98

112

125

157

-

Secondfoot-days

253.8

184.4

453.9

107,229.6

321.0

348.2

1,016

3,032

36,538

7,920

439.3

58.9

57.4

50,622.9

May

199

642

1,180

1,170

1,290

1,460

1,440

1,430

1,410

1,400

1,390

1,390

1,400

1,390

1,390

1,400

1,400

1,390

1,390

1,170

902

901

1,150

1,350

1,350

1,130

884

884

878

886

892

Maximum

163

30

33

1,540

14

18

56

179

1,460

890

191

1.9

2.1

1,460

June

890

890

700

562

563

565

568

570

572

266

25

23

21

20

19

18

17

16

14

14

12

163

288

40

39

258

442

282

38

25

Minimum

2.1

1.9

8.6

1.9

8.9

8.9

14

38

199

12

1.9

1.9

1.9

1.9

July

143

191

20

5.3

5.1

4.8

4.5

4.3

4.0

4.0

4.0

4.0

3.6

3.1

3.1

2.9

2.7

2.7

2.6

2.4

2.4

2.2

2.2

2.1

1.9

1.9

1.9

1.9

1.9

1.9

1.9

Aug.

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

Mean

8.19

6.15

14.6

294

10.4

12.4

32.8

101

1,179

264

14.2

1.90

1.91

139

Sept.

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

2.1

1.9

1.9

1.9

2.1

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

Runoff in 

acre-feet

503

ODD Tee

900

212,700

637

691

2,020

6,010

72,470

15,710

871

117

114

100,400
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 233

North Pork Willow Creek below Crane Valley Reservoir, Calif.

Location.- Water-stage recorder, lat. 37°17', long. 119 0 32', in SE£ sec. 26, T. 7 S., 

K. 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 1947.

Extremes.- Maximum discharge during year, 171 second-feet (regulated) Nov. 22 (gage 

neignt, 3.20 feet); minimum, 0.4 second-foot (regulated) Oct. 2-8.

1940-47: Maximum discharge, 847 second-feet Feb. 11, 1941 (gage height, 5.85 

feet); minimum, 0.1 second-foot Nov. 13-16, 1940.

Remarks.- Records good. Flow regulated by Crane Valley Reservoir (capacity, 45,000 

acre-feet) and diversion into Pacific Gas & Electric Co. conduit No. 3 near Crane 

Valley Reservoir (see following page). Water is diverted from South Fork Willow 

Creek into reservoir.

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 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.

0.8

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.6

.7

.6

.6

.6

9.4

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.1

1.1

1.1

Nov.

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.2

61

35

21

1.1

.9

27

26

3.4

70

70

4.0

2.0

1.8

1.8

1.8

1.8

61

48

-

Dec.

49

44

74

102

103

104

103

2.1

99

101

100

100

104

103

102

103

124

166

163

160

163

126

128

160

56

117

105

108

37

133

156

Jan.

68

163

163

150

106

161

161

161

161

163

163

163

147

101

102

103

102

104

78

101

78

80

67

57

21

54

65

70

80

86

86

Feb.

58

55

94

102

103

103

97

89

69

104

100

87

50

80

63

1.3

96

78

86

78

85

98

84

95

96

103

96

96

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July... ....................................

August .....................................

September. .................................

Water year 1946-47 .....................

Mar.

63

1.6

108

98

91

92

118

154

145

131

157

155

155

155

155

158

158

141

99

99

96

94

37

99

99

78

94

75

27

1.1

42

Apr.

106

101

17

1.0

1.0

.9

23

38

51

36

54

1.1

1.0

1.0

29

30

38

41

1.2

1.2

32

38

40

43

41

1.2

1.3

41

41

41

Secondfoot days

30.5

451.1

3,295.1

c j t £29 . 4

3,365

2,346.3

3, 1W5 . 7

891.9

397 . 6

23 . 8

22 . 5

n!i

16.4

14,033.0

May

28

37

30

1.2

62

65

66

49

43

.8

.7

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.9

.8

.7

.8

.8

Maximum

9.4

70

166

166

163

104

158

106

66

.8

.8

.6

.6

166

June

0.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

Minimum

0.4

.9

2\\

.4

21

1.3

1.1

.9

.7

.7

.7

.5

.5

.4

July

0.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

Aug.

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.5

.5

.5

.5

Mean

0.98

15.0

106

14.3

109

83.8

102

29.7

12 . 8

.79

.73

.55

.55

38.4

Sept.

0.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

Runoff in 

acre feet

60

895

6,540

10,370

6,670

4,650

6,300

1,770

789

47

45

34

33

27,830
234 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. VS., 

RT~2TT~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 1947.

Extremes.- Maximum daily discharge during year, 147 second-feet July 23-25, 29-31; no 

flow at times.

1940-47: Maximum daily discharge, 164 second-feet Sept. 21, 1944; no flow at 

times during each year except 1945, 1946.

Remarks.- Records good. Conduit diverts from Crane Valley Reservoir in sec. 26, T. 7 

£>., H. 22 E. Water passes through Crane Valley powerhouse, then to powerhouse No. 3 

and eventually returns to North Fork 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 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.

68

67

65

68

67

24

84

82

82

79

82

84

18

67

71

46

50

50

12

15

52

24

21

37

67

67

17

34

49

21

15

Nov.

23

24

15

24

17

24

20

22

15

20

20

21

.4

l.O

.2

17

23

.4

.4

.2

.?.

.2

.2

.2

.?.

,

.7

1.4

1.7

1.7

-

Dec.

1.7

1.1

0

0

0

0

o

0

o

o

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

.6

0

0

0

0

Jan.

0

0

0

o

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.8

4.4

2.1

.9

Feb.

0.8

.8

.7

.6

.6

.6

.6

.6

.5

.4

.3

.3

.3

.3

.3

.4

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

March. .....................................

April. .....................................

Mnu

September . .................................

Water year 1946-47 ......................

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

.1

.1

.2

.2

.2

i

.2

.3

Apr.

0.3

.3

.2

.2

.2

.2

.2

.2

.1

.1

.2

.3

.4

.4

.2

0

O

O

0

0

0

0

o

0

0

o

0

0

0

0-

Secondfoot-days

3.4

22,053.4

2,033.9

11,487.0

May

0

0

0

0

0

0

1.3

15

8.6

1.5

.7

45

53

29

48

66

.7

8.8

42

80

86

85

82

.6

.6

30

.6

13

.6

7.8

.6

Maximum

1.7

152

126

147

June

0.6

7.2

.5

10

.8

.8

6.6

.8

7.0

.8

.8

8.6

1.0

8.2

1.1

1.1

21

88

81

52

.9

6.4

44

74

80

70

73

.7

.7

81

-

Minimum

O

0

. 4

.t

O

July

91

85

66

.7

6.4

.6

83

77

100

97

87

1.8

.4

99

100

97

100

1OO

80

.7

111

116

147

147

147

139

104

120

147

147

147

Aug.

140

140

122

112

135

134

138

138

139

84

108

138

138

138

134

133

138

132

145

140

117

75

55

.7

104

104

85

80

100

15

1.0

Mean

' 9.81

.11

60.4

.12

.12

22.8

24.3

108

67.8

31.5

Sept.

7.7

102

102

93

103

100

91

36

.7

95

102

111

126

58

97

101

49

19

.6

7.3

21

67

102

98

15

60

79

.6

99

91

-

Runoff in 

acre-feet

584

6.7

43,730

1,400

1,450

6,670

4,030

22,780
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 236

Big Sandy Creek near Auberry, Cdlif.

Location (revised).- Water-stage recorder, lat. 37°03'10", Ions 119°3"'-30" in NF1 ->f 

NWTsecT-^rr-lO S., R. 22 E., 1.8 miles upstream from mouth, 3 miles west of" 

Fratner, and 4 miles southwest of Auberry. Altitude of gage, about 1,300 feet (from 

topographic map).

Drainage area.- 27.8 square miles (revised).

Records available - October 1946 to September 1947. Discharge measurements only June 

Ia44 to June 1946 (published as miscellaneous measurements in this report).

Extremes.- Maximum discharge during year, 626 second-feet Dec. 27 (gage'height, 3 32 

reet); no flow during several months.

Remarks.- Records fair. No storage or diversion above station. Discharge measurements 

in second-feet, made prior to beginning of record, are given herewith:

June

Sept

Nov.

22, 1944

13

18

14

0.1

0

.5

.6

Jan.

Feb.

11, 1945

2

4

6

2.5

258

74

38.6

Feb.

Apr.

May

July

17, 1945

18

24

12

16.0

16.7

2.3

0

Jan.

Mar.

Apr.

May

June

17, 1946

9

3

20

19

1.7

2.6

21.0

.2

.1

Discharge, in second-feet, water year October 1946 to September 1947

Day

I

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

28

29

30

31

Oct.

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

.1.1

.1

.1.1

Nov.

0.1.1.1

.1.1

.1.1

0

0

0

0

0

.1

0

0

0

0

0

:s

52

3.5

1.4

155

16

7.2

2.6

1.7

1.0

.7

.6

-

Dec.

0.5

.5

.4

.4

.9

5.4

20

6.3

3.7

3.0

2.4

2.2

1.8

1.7

1.4

1.3

1.2

1.1

1.0

.9

.9

.8

.8

1.9

46

52

149

36

19

13

10

Jan.

9.7

7.8

6.7

6.3

5.8

5.8

5.4

5.0

4.7

4.7

4.3

4.3

4.7

4.0

3.7

3.5

' 3.5

3.5

3.5

3.5

3.2

3.2

3.2

3.0

2.8

3.0

3.2

6.7

6.3

4.7

4.3

Feb.

4.0

3.7

3.7

3.7

3.7

3.5

3.5

3.2

4.3

16

7.2

16

22

11

9.1

8.5

10

12

8.5

7.2

6.7

6.3

5.8

5.8

5.4

5.0

4.7

4.7

-

-

-

Month

December ...................................

Calendar year ......................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

4.3

16

8.5

6.7

6.3

5.4

5.4

5.4

5.0

6.3

5.8

5.0

4.3

4.0

3.7

3.5

3.2

3.2

3.2

3.2

3.2

3.0

3.0

2.6

2.6

2.3

2.?.

3.7

3.5

2.8

2.6

Apr.

2.4

2.6

3.0

2.8

2.4

2.3

2.2

2.0

2.0

2.0

1.9

1.7

1.4

1.3

1.3

1.1

.9

.8

.8

.7

.7

.7

.7

.6

.5

.5

.5

.6

.5

.4

-

Second 

foot-days

385.5

_

139 9

2 5

0

1,161.9

May

0.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

0

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

.1

.1

.1

0

.1

.1

Maximum

149

_

0

155

June

Minimum

_

g

0

0

July Aug.

Mean

I 12.4

_

0

3.18

Sept.

Runoff in 

acre-feet

765

_

0

2,300
236 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 

Fine Gold Creek near i'l-i-mf, Calif.

Location (revised).- Water-stage recorder, lat. 37°04'00", long. 119°38'60", in NW£ 

wtfr sec. 14, T1 . 10 S., R. 21 E., 1,500 feet downstream from Willow Creek and b.6 

miles northeast of Friant. Altitude of gage, about 620 feet (from topographic map).

Drainage area.- 92.8 square miles (revised). 

Records available.- October 1936 to September 1947. 

Average discharge.- 11 years, 49.3 second-feet.

Extremes.- Maximum discharge during year, 1,480 second-feet Dec. 27.(gage height, 7.93 

reet); no flow Oct. 1-31, June 14 to Sept. 30.

1936-47: Maximum discharge, 10,300 second-feet Mar. 12, 1938 (gage height, 20.4 

feet, from floodmarks), from rating curve extended above 6,faOO second-feet; no flow 

at times during each year.

Remarks.- Records fair. No storage or diversion above station.

i.o 

1.2

1.4

1.7

1.8

Rating tables, water year 1946-47 (gage height, in feet, and discharge,

in second-feet) 

(Shifting-control method used Oct. 31 to Nov. 6; Dec. 28 to Feb. 12)

Oct. 1 to Nov. 20

1.9

2.0

2.1 

2.3 

2.5

2.8 

6.0

10

2.7 

2.9 

3.1 

3.4 

3.7

102

153

212

.5 

1.5 

3.5 

6.4

Nov. 20 to Sept. 30

2.0 14

2.2 26

2.4 41

3.0 

3.3

105

147

3.6 

4.0 

4.4 

4.8

198

283

377

479

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.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0.3

Nov.

0.8 

.8 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.4 

2.1 

2.6 

2.3

1.7 

1.7 

1.7 

12 

178

32 

19 

130 

48 

19

12 

9.6 

8.6 

7.5

7.1

Dec.

6.4 

5.8 

5.8 

5.8 

6.4

59 

76 

30

19 

15

14 

12 

11 

10 

9.3

8.9 

8.6 

8.2 

7.8 

7.8

7.8 

7.5 

7.5 

8.9 

55

109 

459 

143 

80 

58 

47

Jan.

41 

34 

26 ^3 

21

20

17 

14 

14 

14

14 

13 

14 

14 

13

12 

12 

12 

12 

12

11 

11

11 

10 

10

10 

10 

19 

20 

14 

13

Feb.

13

12 

12 

12 

12

11 

11 

10 

12 

45

23 

53 

105 

49 

37

32 

38

41 

31 

28

25 

23 

22 

22 

20

19

18 

18

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

ber. ...................................

mber. ..................................

lendar year 1946 

8.ry

1. .....................................

St. ....................................

ember. .................................

Water year 1946 47 ......................

Peak discharge.- Nov. 20 (9 a.m.) 479 sec.

p.m.) 1,480 sec. -ft.

Mar.

17 

32 

25 

22 

23

20 

18 

18 

18 

23

24 

19 

18 

17 

15

14 

14. 

14 

13 

13

13 

13 

13 

12

12

11 

10

12 

14 

12 

12

Apr.

10 

10 

14 

18 

13

11

10 

9.3 

8.9 

8.6

8.2 

7.8 

7.1 

6.4 

6.4

6.1 

5.8 

5.8 

5.8 

5.5

5.2 

5.2 

5.2 

5.2 

5.2

5.0 

5.0 

 5.0 

5.0 

4.4

Second 

foot-days

0.3 

506.9 

1,309.5

5,127.5

491 

754 

511 

228.1 

49.9 

10.9 

0 

0 

0

3,861.6

May

3.8 

3.1 

2.9 

2.5 

2.5

2.3 

2.1 

1.9 

2.1 

2.3

2.1 

1.9 

1.9 

1.9 

1.7

1.5 

1.4 

1.3 

1.1 

1.0

.7 

.5 

.4 

.4 

.3

.3 

.3 

.9

1.5 

1.4 

1.9

Maximum

0.3 

178 

459

596

41 

105 

32 

18 

3.8 

1.7 

0 

0 

0

459

June

1.7 

1.3 

1.1

1.1 

1.0

.9 

.9 

.8 

.7 

.5

.5 

.3 

.1

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

0 

.£ 

5.«

0

10 

10 

10 

4.4

o"

0 

0 

0

0

July Aug.

Mean

0.01 

16.9 

42.2

14.0

15.8 

26.9 

16.5 

7.60 

1.61 

.36 

0 

0 

0

10.6

Sept.

Runoff in 

acre-feet

0.6 

1,010 

2,600

10,170

974 

1,500 

1,010 

452 

99 

22 

0 

0 

0

7,670

-ft.; Nov. 23 (4:3'i p.m.) 257 sec. -ft.; Dec. 27 (12:15
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 237

Cottonwood Creek near Friant, Calif.

Location.- Water-stage recorder, lat. 37°00'05", long. 119°43'10", in SE£ sec. 6, T. 11 

s., K. ?.l E., 1 mile upstream from mouth and 1 mile northwest of Friant. Altitude of 

gage, about 355 feet (from topographic map).

Drainage area.- 38 square miles.

Records available.- October 1941 to September 1947.

Extremes.- Maximum discharge during year, 60 second-feet Dec. 27 (gage height, 1.61 feet); 

no now for several months.

1942-47: Maximum discharge, 569 second-feet Jan. 22, 1943 (gage height, 3.89 feet); 

no flow for several months each year.

Remarks.- Records good. Nq diversion above station. Creek is tributary to San Joaquin 

Kiver between Friant Dam and gaging station downstream.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

0.4 

.55 

.63

.66 

.7

.9

1.0

1.1

1.0 

1.6 

3.9

1.2

1.3

1.4

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

y.

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.1

0

0

0

0

0

o

0

o

o

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.2

0

.1.1

0

0

0

0

0

0

0

-

Dec.

0

0

0

0

0

.2

.2

0

0

0

0

0

0

o

0

0

.1.1.1

.1

.1

.1.1

.7

f9.2

f9.2

32

20

15

12

9.7

Jan.

8.3

7.0

5.5

4.8

4.5

4.5

3.9

3.0

2.7

2.7

2.7

2.7

X.2

2.5

2.1

1.9

1.8

1.8

1.8

1.6

1.6

1.6

1.5

1.3

1.3

1.3

1.5

2.5

3.0

1.9

1.6

Feb.

1.5

1.3

1.3

1.3

1.5

1.5

1.5

1.5

2.3

d20

4.5

6.2

9.2

5.1

4.5

4.2

3.9

3.9

3.0

3.0

2.7

2.5

2.3

2.3

2.1

2.1

1.8

1.6

_

_

-

Month

October ....................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March. .....................................

April............ ..........................

May........................................

June .......................................

July .......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

1.6

2.7

2.5

2.1

1.8

1.5

1.3

1.3

1.2

1.9

2.5

1.6

1.2

1.0

.9

.8

.7

.7

.7

.7

.7

.7

.6

.5

.5

.4

.4

.5

.7

.6

.5

Apr.

0.4

.2

.5

.7

.4

.3

.2

.2

.1

.1

.1

O

0

0

o

0

0

0

o

0

o

0

0

0

0

0

0

0

0

0

Secondfoot-clays

0.1

.6

108.9

216.6

88. 1

98 .6

34 .8

3.2

0

0

0

0

o

334.3

d Doubtful gage-height record; discharge computed on

May

Maximum

0.1

.2

32

32

8.3

20

2.7

.7

0

0

0

0

0

32

June

Minimum

0

0

0

0

1.3

1.3

.4

0

0

0

0

0

0

0

July Aug.

Mean

0.003

.02

3.51

.59

2.84

1*12 3 52

ill

0

0

0

0

0

.92

Sept.

Runoff in 

acre-feet

0.2

1.2

216

429

175

196

69

6.3

0

0

0

0

0

664

basis of estimated gage-height record.

f Computed on basis of partly estimated gage-height record.
238 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER

Little Dry Creek near Priant, Calif. .

Location.- Water-stage recorder, lat. 36°56'25", long. 119°40'55", in SE£ sec. 28, T. 11 

b., K. 21 E., 4 miles upstream from mouth and 3.5 miles (revised) southeast of Priant. 

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 1947.

Extremes.- Maximum discharge during year, 227 second-feet Dec. 27 (gage height, 2.78 feet); 

no now for several months.

1941-47: Maximum discharge, 1,530 second-feet Peb. 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 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. Nov. Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.8

44

82

34

17

12

8.5

Jan.

7.0

6.0

4.9

4.2

4.2

4.2

4.0

3.6

3.1

3.1

3.1

3.1

3.3

3.3

3.1

2.6

2.5

2.6

2.5

2.5

2.5

2.4

2.4

2.4

2.2

2.2

2.2

3.8

5.7

3.3

3.0

Feb.

2.8

2.6

2.6

2.5

2.5

2.5

2.5

2.4

2.8

9.9

5.7

5.4

15

7.9

6.3

5.4

5.2

5.4

4.5

4.0

3.8

3.3

3.1

3.8

3.0

2.8

2.6

2.5

_

-

Month

October. ................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March....... ...............................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

2.4

2.8

4.7

3.6

3.0

2.8

2.6

2.5

2.6

2.8

2.8

2.6

2.2

2.0

2.0

2.0

1.9

1.8

1.9

1.6

1.8

1.8

1.6

1.4

1.2

1.1

.9

1.2

2.4

2.0

1.6

Apr.

1.4

1.2

1.8

1.9

1.6

dl.5

dl.3

dl.2

dl.l

dl.O

d.9

d.8

d.7

d.6

d.5

.2

.1

.1

.1

0

1.0

1.0

.5

0

0

0

0

0

0

0

Secondfoot-days

0

0

200.3

662.1

105.0

122 . 8

67.6

20.5

0

0

0

0

0

516.2

May

Uaximun

0

0

82

96

7.0

15

4.7

o"1 9

0

0

0

0

82

June

Minimum

0

0

0

0

2.2

2.4

.9

0

0

0

0

0

0

0

July Aug.

Mean

0

0

6.46

1 .81

3 .39

4!39

2 . 18

.68

0

0

0

0

0

1.41

Sept.

Runoff in 

acre- feet

0

0

397

1,310

208

244

134

41

0

0

0

0

0

1,020

d Doubtful gage-height record; discharge interpolated.
FRESNO RIVER BASIN 239

Fresno River near Knowles, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°14', long. 119°46 ! , in NW£ 

sec. 15, T. 85., R. 20 E., at Fresno Crossing, 0.1 mile downstream from Bean Gulch 

and 6 miles northeast of Knowles. Altitude of gage, about 1,140 feet (from topographic 

map).

Drainage area.- 132 square miles.

Records available.- September 1911 to December 1913, November 1915 to September 1947.

Average discharge.- 32 years (1911-12, 1916-47), 81.9 second-feet.

Extremes.- Maximum discharge during year, 934 second-feet Nov. 23 (gage height, 3.13 

i'eet); no flow Aug. 19, 20, Sept. 8-12.

1911-13, 1915-47: 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.

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 1946-47 (gage height, In feet, 

and discharge. In second-feet)

.9

1.0

1.3 

3.0

6.0

10

1.6

1.7

1.8 

2.0 

2.3

111

149

238

385

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.

6.4

29

14

12

12

11

10

9.2

8.7

8.2

7.8

7.4

7.4

7.4

6.4

9.2

12

8.2

6.9

6.4

6.0

5.4

5.4

5.7

5.7

6.0

6.0

6.0

6.0

6.4

6.0

Nov.

6.4

7.4

6.9

6.4

6.9

6.9

7.4

7.4

7.8

8.2

8.2

9.6

10

12

12

9.6

9.6

9.2

18

310

57

32

349

130

52

37

29

25

22

20

-

Dec.

18

17

17

17

19

128

122

62

48

39

35

32

30

27

27

25

25

22

20

20

19

19

19

23

85

138

384

153

88

68

55

Jan.

50

46

41

37

35

33

32

30

29

29

29

29

30

26

26

25

25

26

26

25

25

25

25

23

23

23

23

32

32

29

29

Feb.

27

26

26

26

26

25

25

25

29

55

41

113

282

115

78

65

65

65

57

52

48

44

42

42

41

39

37

39

_

_

-

Month

October ....................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

Harch. .....................................

April ......................................

May. .......................................

June .......................................

July....... ................................

August .....................................

September ..................................

Water year 1946-47 ......................

'Mar.

37

83

68

57

60

55

48

48

48

73

78

57

50

46

42

57

73

73

73

73

73

73

73

70

68

68

68

78

81

91

88

Apr.

75

75

98

91

81

81

78

78

75

75

73

73

75

78

78

75

75

78

73

68

68

68

68

65

65

65

68

73

68

65

Secondfoot days

264.2

1,232.9

1,801

20,149.2

918

1,555

2,030

2,226

1,927

776

202.4

28.7

25 " £

12,986.4

Hay

70

78

78

75

75

73

73

75

78

73

68

65

65

65

62

62

62

60

57

57

55

52

50

48

44

41

48

62

50

46

60

Maximum

29

349

384

842

50

282

91

98

78

50

14

2.7

3.0

384

Peak discharge.- Nov. 20 (6:3O a.m.) 760 sec. -ft.: Nov. 23 (3:30

June

50

44

42

41

39

37

35

37

35

32

29

27

25

23

22

20

20

20

18

18

18

17

16

16

16

15

16

16

16

16

Minimum

5.

6.

17

B

23

25

37

65

41

15

2.

0

0

0

July

14

13

10

10

10

9.6

9.6

9.6

9.6

9.2

8.7

8.2

7.4

6.0

6.0

5.4

5.4

5.7

5.1

4.8

3.6

3.3

3.0

3.9

4.2

3.9

3.6

2.5

2.2

2.2

2.7

Aug.

2.7

2.3

2.2

1.8

1.8

1.5

1.3

1.0

.4

.2

.2

.1

.6

1.0

1.0

.9

.3

.1

0

.2

.6

.6

.8

.9

.5

.2

.8

1.0

1.0

1.2

1.5

Mean

t 8.52

t 41.1

58.1

3 55.2

29.6

55.5

65.5

74.2

62.2

25.9

6 .53

!93

.84

35.6

Sept.

1.1

.6

.3

.2

.1

.1

.1

0

o

0

0

.2

.4

.4

.5

.2

.2

.1

1.4

3.0

2.8

1.8

1.5

1.2

1.6

1.6

1.5

1.5

1.5

1.3

Runoff in 

acre feet

524

2,450

3,570

39,960

1,820

3,080

4,030

4,420

3,820

1,540

401

57

50

25,760

p.m.) 934 sec. -ft.; Dec. 6 (7:30

a.m.) 271 sec.-ft.5 Dec. 26 (4:30 a.m.) 220 sec.-ft.; Dec. 27 (7 a.m.) 774 

(2 a.m.) 482 sec.-ft.

.-ft.; Feb. 13
240 FRESNO RIVER BASIN

Fresno River near Daulton, Calif.

Location.- Water-stage recorder, lat. 37°06', long. 119°53', in NW£ sec. 3, T. 10 S., R. 

iy E., 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 1947.

Extremes.- Maximum discharge during year, 1,600 second-feet Dec. 27 (gage height, 3.18 

feet); no flow Aug. 14 to Sept. 30.

1944-47: Maximum discharge, 8,090 second-feet Feb. 2, 1945 (gage height, 7.10 

feet); no flow at times in September 1945, August, September 1947.

Remarks.- Records fair. Water is diverted into Fresno River Basin aboife station from 

San Joaquin and Merced River Basins. Small diversions above station for irrigation. 

Some regulation at low flow by raining operations above station.

Cooperation.- Twelve discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

30

Oct.

1.4

21

31

19

13

13

12

11

7.9

7.0

6.5

6.0

5.5

5.5

5.5

9.7

11

15

7.9

6.5

6.0

5.5

5.5

5.0

5.0

4.5

5.0

5.0

4.5

4.5

4.5

Nov.

4.5

4.5

5.5

5.5

5.0

5.5

t-.O

5.5

4.5

5.5

6.5

7.9

12

12

14

12

9.7

9.7

15

284

131

55

275

234

105

64

41

34

31

28

-

Dec.

25

24

22

20

19

88

220

111

68

55

46

43

41

39

39

38

36

36

32

29

28

25

25

29

70

211

794

414

202

153

114

Jan.

90

73

59

48

44

41

44

44

44

43

43

43

43

44

41

38

38

39

39

39

38

38

36

32

32

31

32

36

44

43

41

Feb.

41

41

43

43

44

43

43

43

46

82

87

90

384

189

114

95

90

90

87

82

73

61

53

53

53

44

43

43

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March.. ....................................

April ......................................

May. .......................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

43

61

101

71

73

73

61

55

50

64

111

92

76

66

57

55

79

87

98

92

84

84

87

90

76

68

68

71

82

84

95

Apr.

90

90

98

114

98

98

95

82

84

82

87

90

84

79

76

71

82

82

76

66

64

66

66

66

66

66

66

66

66

64

-

Secondfoot-days

3,096

25,428.4

2 354

3 9

0

15,573.2

May

64

73

73

71

68

68

68

68

73

71

68

61

57

59

57

55

53

50

50

50

48

48

44

41

38

34

34

48

46

41

43

Maximum

794

1,840

0

794

June

48

39

36

34

32

32

32

34

36

31

29

28

25

24

21

21

20

19

16

12

9.7

8.8

8.8

7.9

8.8

8.8

9.7

8.8

8.8

8.8

-

Minimum

4

19

7

0

0

July

8.8

7.0

6.5

6.0

4.0

3.5

4.5

4.5

5.5

6.0

6.5

7.0

7.9

5.0

4.0

4.0

3.0

3.5

3.5

3.5

3.0

1.8

.8

.6

.8

2.0

1.4

1.2

1.0

.2

.2

Aug.

0.2

.4

.6

.6

.6

.4

.2

.2

.2

.2

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

99.9

I 69.7

43 2

75 9

3 01 Q

0

42.7

Sept.

Runoff in 

ao re-feet

6,140

50,440

232

0

30,890

Peak discharge.- Nov. 23 (8:30 p.m.) 1.040 sec. -ft.: Dee. 27 (12:30 p.m.) 1.600 sec. -ft.
TRIBUTARIES ANT. DIVERSIONS BETWEEN FRESNO RIVER AND MERCED RIVER 241

Chowchilla River at Buchanan dam site, Calif.

Location.- Water-stage recorder, lat. 37°13', long. 120°00', in SW£ sec. 22, T. 8 S., 

R. IB 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 1947.

Average discharge.- 17 years (1930-47), 114 second-feet.

Extremes.- Maximum discharge during year, 2,870 second-feet Nov. 23 (gage height, 7.93 

feet); no flow Oct. 1-17, June 21 to Sept. 30.

1921-23, 1930-47: 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.

Discharge, in second-feet, water year October 1946 to September 1947

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.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.1

2.1

1.8

1.7

1.6

1.5

1.4

1.5

1.6

1.6

1.6

1.7

1.8

1.9

Nov.

2.1

2.2

2.3

2.4

2.5

2.7

2.7

2.8

2.7

2.8

2.9

3.6

4.4

6.3

6.6

6.6

5.4

5.7

9.4

352

94

42

649

227

74

46

34

28

24

22

-

Dec.

20

18

17

16

18

82

340

120

69

50

43

36

33

31

28

26

25

24

22

21

20

20

20

24

90

101

641

273

126

91

70

Jan.

60

54

48

44

42

41

39

36

33

32

31

31

36

34

30

29

28

28

28

27

26

26

25

24

24

24

24

31

42

36

32

Feb.

32

31

30

29

29

28

27

26

28

78

65

141

598

187

121

92

82

81

71

63

58

53

49

46

45

43

41

41

-

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

Ifav

September. .................................

Water year 1946-47 ......................

Mar.

39

61

73

58

61

54

49

47

50

69

124

76

64

57

53

49

47

45

44

42

42

40

39

41

37

35

34

35

46

44

49

Apr.

41

38

52

75

54

46

43

41

39

37

34

34

31

29

27

25

23

22

22

21

20

20

20

20

19

19

19

18

18

17

Seoondfoot-days

2,515

18,450.9

0

10,295.8

May

16

14

13

12

11

10

9.4

9.7

11

12

11

9.9

8.9

8.4

7.8

7.4

6.8

5.7

5.4

4.6

3.5

3.0

2.7

2.4

2.2

1.9

2.8

3.8

7.8

7.2

7.0

Maximum

641

1,990

0

649

June

7.4

6.8

5.7

5.2

5.0

4.6

4.7

4.7

4.4

4.1

3.1

2.3

1.8

1.3

1.0

.6

.4

.2

.1

.1

0

0

0

0

0

0

0

0

0

0

-

Minimum

16

0

0

0

July Aug.

Mean

81.1

50.6

0

28.2

Sept.

Runoff in 

acre-feet

45

4,990

36,600

0

20,400

Peak discharge.- Nov. 20 (10 a.m.) 1,130 sec.-ft.; Nov. 23 (2 p.m.) 2,870 sec.-ft.; Dec. 7 

(5:30 a.m.) 620 sec.-ft.; Dec. 27(12 m.) 1,380 sec.-ft.; Feb. 13 (3:30 a.m.) 1,110 sec.-ft.; Mar. 11 

(l a.m.) 178 sec.-ft.
242 TRIBUTARIES AND DIVERSIONS BETWEEN PRESNO RIVER AND MERCED RIVER

Chamberlain Slough near El Nido, Calif.

Location.- Water-stage recorder, lat. 37°06'45", long. 120°35'20", in NE-J- sec. 31, T. 9 

3. , R. 13 E. , 30 feet downstream from head and 5 miles southwest of El Nido. Datura 

of gage is 100.14 feet above mean sea level (Bureau of Reclamation bench mark).

Records available.- October 1939 to September 1947.

Extremes.- Maximum discharge during year, 685 second-feet Nov. 29 (gage height, 5.66 

feet ) ; minimum, 0.5 second-foot July 9 (result of irrigation operations).

1944-47: 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 Joaquin River near El Nido

(see p. 218 ) add discharge to that station to obtain total flow of river at this 

point.

Cooperation.- Twenty-two discharge measurements furnished by Bureau of Reclamation.

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.

'39

36

35

36

36

36

35

36

39

44

28

16

12

11

9.9

14

14

14

14

14

13

12

11

9.6

9.3

9.0

8.7

8.4

8.4

9.6

9.3

Nov.

8.4

8.0

7.7

8.0

8.0

8.0

7.4

6.8

6.3

5.8

5.8

5.0

5.5

5.8

5.2

4.7

4.2

4.0

4.5

6.0

5.8

4.7

5.2

5.0

4.5

3.8

3.8

371

628

419

-

Deo.

288

230

193

170

161

159

161

177

222

321

344

328

305

285

264

244

228

216

206

199

195

320

374

215

131

139

301

326

296

401

547

Jan.

576

485

436

423

407

378

358

346

340

342

350

344

341

337

331

324

321

319

316

312

310

309

314

326

326

312

309

312

316

313

302

Feb.

281

270

263

263

264

222

158

153

156

156

164

188

208

210

220

232

232

233

233

231

225

264

306

320

321

305

293

279

_

_

-

Month

October. ...................................

November ...................................

December . ..................................

Calendar year 1946 ..................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July.... ...................................

Auguat .....................................

September. .................................

Water year 1946-47 ......................

Mar.

267

254

240

216

206

202

209

216

221

226

232

233

240

233

218

200

187

185

154

127

106

64

41

30

27

25

29

29

37

39

39

Apr.

40

40

41

41

39

36

38

40

37

37

38

35

33

33

32

30

30

32

33

36

42

46

36

33

33

35

37

35

36

36

Seoond 

foot-days

627.2

1,575.9

7,946

101,685.3

10,835

6,650

4,732

1,090

341.6

120.2

178.1

219.3

222.7

34,538.0

May

37

36

46

39

29

17

8.3

7.9

6.5

6.9

7.O

7.4

7.6

6.7

6.4

6.4

6.4

6.2

6.2

6.2

6.2

5.0

3.3

3.3

3.4

3.4

3.5

3.5

3.5

3.2

3.2

Maximum

44

628

547

1,510

576

321

267

46

46

6.6

7.0

9.1

12

628

June

3.2

3.3

3.3

3.4

3.3

3.3

3.2

3.2

3.2

3.2

3.3

3.3

3.3

3.4

3.6

3.6

3.6

3.6

3.6

3.7

3.7

2.4

2.4

4.7

6.6

6.6

6.5

6.5

6.6

6.6

Minimum

8.'

3.!

131

0

302

153

25

30

3.2

2.4

l.C

5.4

4.C

l.C

July

6.6

6.2

6.1

6.0

4.4

2.6

1.5

1.0

4.1

7.0

6.0

5.7

5.7

5.7

5.7

5.7

5.7

6.0

6.0

6.7

6.7

6.7

6.7

6.7

6.7

6.7

6.7

6.7

6.7

6.7

6.7

Aug.

6.0

5.4

7.0

8.3

7.3

7.0

6.4

6.4

6.7

6.7

6.7

6.0

6.8

7.0

6.4

6.4

6.4

6.4

6.7

6.7

7.3

7.0

6.7

7.0

7.6

7.9

8.3

8.3

8.7

9.1

8.7

Mean

I 20.2

52.5

256

279

350

238

153

36.3

11.0

4.01

5.75

7.07

7.42

) 94.6

Sept.

9.1

8.3

7.3

7.3

7.3

7.6

7.3

7.3

7.3

7.3

7.3

7.3

7.6

9.5

10

12

10

10

7.6

6.7

7.3

9.1.

7.0

5.7

5.1

5.1

4.8

4.8

4.6

5.1

Runoff in 

acre-feet

1,240

3,130

15,760

201,700

21,490

13,190

9,390

2,160

678

238

353

435

442

68,510
TRIBUTARIES AND DIVERSIONS BETWEEN FRESNO RIVER AND MERCED RIVER 243

Salt Slough near Los Banos, Calif.

Location.- Water-stage recorder, lat. 37°09'35" (revised), long.120"48'45" (revised), in 

banjon de Santa Rita Grant at San Luis Ranch, 7 miles north of Los Banos, Merced County. 

Altitude of gage, about 80 feet (from topographic map).

Records available.- December 1940 to September 1947.

Extremes.- Maximum discharge during year, 420 second-feet Jan. 2 (gage height, 4.86 feet); 

minimum, 60 second-feet Feb. 12.

1944-47: Maximum discharge, 1,200 second-feet May 18, 1945 (gage height, 8.32 feet); 

minimum, 40 second-feet Oct. 9, 1944.

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 by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 tc 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.

159

159

156

152

156

155

153

147

152

148

148

147

141

138

138

141

149

154

149

142

141

137

130

118

100

91

93

94

92

90

99

Nov.

110

117

120

120

118

120

128

131

132

120

110

109

103

96

95

92

88

86

89

105

111

116

122

120

122

123

121

117

127

263

-

Dec.

235

172

138

128

123

125

127

125

121

137

193

224

228

220

198

188

173

167

164

166

158

143

214

230

171

154

159

226

223

218

282

Jan.

371

417

374

314

300

292

268

244

230

222

219

220

215

206

200

193

187

182

177 172'

168

166

164

165

167

164

154

155

156

155

153

Feb.

143

128

120

114

113

113

90

69

66

65

62

67

79

86

88

91

95

96

98

98

96

95

121

140

149

148

140

136

_

_

-

Month

October. ...................................

November . ........................ .........

December . ..................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

133

134

133

138

123

115

117

131

132

138

153

161

168

173

167

156

149

131

131

117

112

109

106

103

103

81

84

101

92

94

103

Apr.

110

105

110

127

140

154

177

176

178

161

158

155

159

172

166

162

161

150

140

134

153

160

159

158

173

168

174

174

174

174

Seccndfoot-days

4,169

3,530

5,530

80,661

6,770

3 ,888

4, 662

5,102

3,410

2 999 

3)068

3,815

49,849

May

183

194

190

215

233

216

209

196

182 IT'6

187

187

187

179

173

167

156

149

144

146

144

150

143

122

117

116

112

132

128

128

141

Maximum

159

263

915

417

149

173

178

233

140

118

173 

180

417

June

131

127

133

140

128

132

134

127

122

132

120

125

134

117

112

116

106

104

99

102

101

94

91

103

103

98

98

87

95

99

Minimum

90

86

121

79

153

62

81

105 

112

87

82

72 

80

62

July

91

95

103

96

86

84

90

104

114

112

96

96

102

110

99

92

89

87

84

87

92

92

94

93

103

100

99

105

113

104

82

Aug.

78

82

98

121

109

98

99

130

89

95

106

101

94

103

100

82

80

87

113

114

89

79

73

80

98

72

104

93

105

123

173

Mean

134

118

178

221

218

104

125

155

165

114

96 . 7

99.0

127

137

Sept.

180

164

110

101

115

124

136

141

143

164

178

176

170

148

154

149

135

138

135

129

109

106

100

94

89

88

80

88

88

83

Runoff in 

acre-feet

8, 270 

7,000

10,970

160,000

13,430

5,760

7,710

9 250 

lo'l20

6,760

5,950

6, 090 

7,570

98.880
244 MERCED RIVER BASIN

Merced River at Happy Isles Bridge, near Yosemite, Calif.

Location.- Water-stage recorder, lat. 37°43'54", long. 119°33'i!d", at Happy Isles Bridge, 

U.4 mile downstream from Illilouette 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 1947.

Average discharge.- 32 years, 338 second-feet.

Extremes.- Maximum discharge during year, L; ,4bO second-feet May 3 (fage height, 6.33 

feet] ; minimum, 6.6 second-feet Sept. 29, 30.

1915-47: Maximum discharge, 10,600 second-feet Dec. 11, 1937 (gage height, 10.4 

feet), from rating curve extended above 4,000 second-feet on basis of velocity-area 

studies; minimum, 1.5 second-feet Sept. 30, 1926.

Remarks.- Records good except those for PFriods of ice effect and those for July 1? to 

Aug. 12, which are fair. Small diversion above station for Yosemite Valley water 

supply.

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.

297

348

216

ITS

146

1D7

S>8

£18

£12

V2

«;a

f>3 e;o ,'JS

53

62

68

63

60

56

54

52

52

51

48

45

42

40

37

32

30

Nov.

30

28

24

24

23

22

25

28

23

24

24

25

26

29

27

30

30

29

56

88

60

81

462

265

189

166

148

135

125

115

-

Dec.

Ill

106

104

100

186

189

157

137

121

117

115

108

104

106

106

100

97

86

88

90

86

86

83

100

176

166

159

131

119

111

111

Jan.

113

100

95

98

100

98

95

93

93

95

95

92

86

b82

b80

b84

76

76

71

70

68

*68

70

70

70

72

71

70

b68

b72

71

Feb.

71

72

76

80

80

86

92

97

98

. 100

95

135

137

131

127

121

115

110

106

104

98

97

102

111

123

131

129

117

_

.

-

Month

October. ................................. .

November. ................... .... . ......

December ............................ ......

Calendar year 1946 ................... .

January. ........................ ... ... .

February ...................................

March. ....................... ... .....

April .............................. ....

May................ ................ ......

June ......... ...................... ......

July. .................................... .

August .............................. ... . .

September .................. ...............

Water year 1946-47 ... ..................

Mar.

119

139

127

111

104

97

97

95

90

113

108

110

119

137

161

189

219

253

256

259

287

327

359

281

256

259

297

284

253

253

233

Apr.

1

1

1

1

Secondfoot-days

2 734

2^361

3,656

148 j 628

2, 562

2,941

5 992

15^503

39,641

3,287

307.7

93,U74.7

227

208

210

189

181

174

166

164

166

168

221

297

415

590

729

880

,000

977

100

220

030

778

610

595

521

490

477

435

485

800

-

May

1,430

1,940

2,150

1,990

1,890

2,000

1,710

1,510

970

768

696

635

655

685

850

1,140

1,210

1,300

1,430

1,650

1,620

1,630

1,640

1,540

1,380

1,170

946

740

702

880

784

Maximum

348

462

189

2,460

113

137

359

 1,220

2 150

702

189

39

17

2,150

June

615

585

490

423

400

373

645

702

595

600

600

490

516

580

615

605

508

521

580

640

419

297

268

265

271

265

256

256

230

202

-

Minimum

30

22

83

12

68

71

90

164

635

202

36

12

7.2

7.2

July

189

181

171

157

150

150

146

139

129

123

121

117

117

115

113

111

108

106

102

98

93

86

77

68

63

55

48

43

S9

36

36

Aug.

37

35

33

31

30

30

30

30

30

30

32

30

30

31

33

34

35

39

38

39

37

32

28

23

19

16

15

14

13

12

12

Mean

88 2

78. 7

118

407

82 6

105

193

517

1,279

460

106

28. 3

10.3

257

Sept.

11

9.8

9.4

8.7

9.0

9.4

9.4

9.8

10

9.8

9.4

9.0

8.7

8.1

7.8

7.8

9.4

11

14

17

16

14

14

12

11

10

9.4

8.1

7.5

7.2

Runoff in 

acre-feet

5,420

4,680

7,250

294, 800

5,080

5,830

11, 880

30,750

78,630

27,400

6, 520

l,74o

610

185,800

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
MERCED BIVER BASIN 245

Merced River at Pohono Bridge, near Yosemite, Calif.

Location.- Water-stage recorder, lat. 37°43'01", long. 119°39'55", 0.4 mile downstream 

TronTSrtist 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.

Kecoras available.- November 1916 to September 1947.

Average aiscnargeT- 30 years (1917-47), 587 second-feet.

Extremes.- Maximum discharge during year, 3,930 second-feet May 3 (gage height, 7.62 feet); 

minimum, 23 second-feet Sept. 30.

1916-47: Maximum discharge, 22,000 second-feet Dec. 11, 1937 (gage height, 19.1 

feet, from floodmarks in gage house), by computation of flow over diversion dam for 

Yosemite powerhouse, 1 mile downstream; minimum, 3.3 second-feet Sept. 29, Oct. 1, 

1924.

Remarks.- Records good. Small diversion above station for Yosemite Valley water supply.

Rating tables, vater year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Aug. 11-14)

Oct. 1 to Nov. 23 Nov. 24 to Sept. 30

1.0 40 2.4 312 0.8

1.1 50 2.8 440 .9

1.3 75 3.2 590 l.O

1.5 106 3.6 770 1.1

1.8 164 4.0 97O 1.2

2.1 234 5.0 1,590 1.4

24 1.7 132 4.0 920

29 2.0 195 5.0 1,580

35 2.4 293 6.0 2,380

43 2.8 408 7.1 3,470

53 3.2 550

79 3.6 720

Discharge, in seoond-f eet , 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.

382

377

267

232

188

158

134

120

113

101

92

86

81

76

72

81

88

88

81

78

75

71

71

70

68

65

62

60

57

56

51

Nov.

50

50

47

a44

a42

a41

a43

a45

a42

a43

a43

a43

a45

a44

45

46

48

47

119

205

124

132

994

558

371

320

283

262

250

230

-

Dec.

220

209

197

186

374

399

312

267

232

225

218

206

202

204

202

193

182

167

169

171

167

162

158

177

317

326

309

250

230

213

211

Jan.

213

191

177

182

186

186

177

175

175

177

180

169

162

156

140

144

140

138

136

136

134

136

138

142

140

146

144

140

138

142

138

Feb.

140

146

148

156

162

169

182

193

197

195

182

254

315

306

260

252

232

220

202

204

200

202

211

237

262

£85

£85

250

-

-

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May...... ..................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

250

304

280

247

232

218

223

223

202

254

260

262

280

315

362

421

471

534

542

578

618

684

775

606

550

574

662

618

566

602

542

Apr.

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

Seoondfoot-days

3,601

4,656

7,055

241,222

4,880

6,047

13,255

30,368

60,360

19,164

4

C-7JS jO tti

1, 596

79 ' ***)

156,159

518

471

467

421

418

396

374

377

383

389

496

644

850

140

390

650

850

800

960

130

860

450

200

200

080

OOO

O20

974

OlO

450

-

May

2,320

3,090

3,460

3,250

3,070

3,140

2,750

2,480

1,780

1,400

1,260

1,130

1,150

1,170

1,350

1,690

1,830

1,860

2,010

2,190

2,160

2,140

2,150

1,980

1,830

1,620

1,400

1,150

1,030

1,230

1,290

June

1,020

926

795

706

662

618

848

1,020

850

820

805

698

680

738

756

747

657

 644

684

747

566

427

374

362

365

362

342

340

320

285

-

Maximum Minimum

382 51

994 41

399 158

4,130 28

213 134

315 140

775 2O2

2,130 374

3,460 1,030

1,020 285

262 60

59 30

vie. «p ?4, £.1

3,460 24

July

262

252

240

225

211

209

200

191

177

171

165

158

154

150

146

142

140

138

134

130

128

119

111

104

95

87

79

73

66

61

60

Aug.

59

58

55

52

50

51

51

50

49

49

51

51

49

45

45

45

45

47

48

47

46

44

42

40

37

34

33

32

31

30

30

Sept.

28

28

27

26

26

26

26

26

26

26

26

26

25

24

24

24

26

26

28

31

32

31

30

28

28

26

26

25

24

24

-

Ma-n Runoff in Mean acre-feet

116 7,140

155 9,240

228 13,990

661 478,400

157 9 , 680

216 11; 990

428 26 290

1,012 60^230

1,947 119,700

639 38,010

148 9,O80

45. 0 2,77O

26.6 1,580

428 309,700

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

Merced River at Happy Isles Bridge, near Tosemite, and Tenaya Creek near Yosemite.

8S4211 0-49-17
246 MERCED RIVER BASIN

Merced River at Kittridge, Calif.

Location.- Water-stage recorder, lat. 37°39', long. 120°11', in sec. 26, T. 3 S., R. 16 

K., 0.2 mile downstream from Whites Gulch, 0.3 mile downstream from Kittridge, and 

3.5 miles downstream from Bagby. Altitude of gage, about 750 feet (from topographic 

map).

Drainage area.- 935 square miles.

Hecorgs available.- November 1928 to September 1947. November 1922 to November 1928 at 

site J. a miles downstream.

Average discharge.- 21 years (1923-27, 1929-30, 1931-47), 1,254 second-feet.

Extremes.- Maximum discharge during year, 9,040 second-feet Nov. 23 (gage height, 11.15 

reet); minimum, 27 second-feet Sept. 16, 17.

1922-47: Maximum discharge, 59,000 second-feet Dec. 11, 1937 (gage height, 31.0 

feet, from floodmarks), from rating curve extended above 11,000 second-feet on basis 

of velocity-area studies and records of storage increase in Lake McClure; minimum, 

13 second-feet Oct. 5, 1925.

Remarks.- Records good. No storage or large diversion above station.

Rating tables, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Nov. 23 Nov. 24 to Sept. 30

0.9 56 3.0 510 6.0 2,100

1.2 96 3.5 675 7.0 3,040

1.6 160 4.0 670 6.0 4,300

2.0 246 4.5 1,100 8.4 4,660

2.5 366 5.0 1,400

0.5 26 1.8 189 5.5 1,620

.7 42 2.2 278 6.5 2,610

.9 62 2.6 364 7.5 3,670

1.1 64 3.2 576 8.5 5,000

1.3 109 3.6 615 6.6 5,420

1.5 136 4.5 1,180

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

Oot.

60

514

455

358

316

273

239

200

162

168

158

147

136

129

124

140

153

162

160

147

142

132

129

131

128

126

116

112

115

115

110

Nov.

107

106

104

103

100

97

92

95

103

106

99

106

115

123

124

123

115

118

274

2,710

610

396

4,800

2,090

1,060

784

671

587

542

502

-

Dec.

466

454

423

402

496

1,530

1,370

935

761

644

590

556

522

498

489

473

441

423

396

390

364

376

367

405

1,010

1,160

1,700

1,220

885

761

663

Jan.

626

594

528

495

498

495

457

438

432

423

423

423

417

364

362

346

351

346

343

336

333

330

330

335

335

335

346

417

396

364

381

Feb.

373

376

361

384

390

393

406

423

450

623

532

1,180

2,150

1,190

945

626

764

716

659

634

601

580

569

587

630

659

671

644

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

 aroh. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

liar.

594

833

836

714

694

637

605

606

596

970

1,080

690

626

833

675

930

990

1,080

1,110

1,140

1,180

1,290

1,460

1,280

1,100

1,070

1,220

1,240

1,220

1,250

1,220

Apr.

1,

1,

1,

1,

1,

1,

2,

2,

2,

2,

3,

3,

3,

2,

2,

1,

1,

1,

1,

1,

1,

2,

Secondfoot-clays

5,577

16,962

21,190

440,397

12,641

16,762

30,377

51,376

68,100

25,395

5,681

1,864

1,015

278,942

080

010

040

965

940

670

828

802

806

802

895

120

410

650

230

560

940

900

000

430

080

440

010

940

790

670

650

650

640

010

-

May

3,230

4,590

5,350

5,060

4,520

4,720

4,330

3,670

2,930

2,250

2,020

1,630

1,660

1,660

2,000

2,430

2,700

2,660

2,730

2,980

2,970

2,840

2,860

2,560

2,440

2,170

1,670

1,790

1,460

1,480

1,900

Maximum

514

4,800

1,700

6,570

626

2,150

1,460

3,430

5,350

1,540

335

61

42

5,350

June

1,540

1,400

1,180

1,040

950

915

935

1,440

1,210

1,090

1,060

960

856

890

925

920

651

766

764

846

792

608

496

454

441

436

426

406

399

373

-

Minimum

60

92

367

43

330

373

594

802

1,480

373

64

41

28

26

July

335

312

299

263

266

252

245

236

224

211

203

193

187

180

175

169

166

162

156

152

149

144

136

129

123

116

106

100

94

86

84

Aug.

61

80

77

74

71

70

66

64

63

63

63

62

63

63

60

60

60

60

59

59

59

56

52

55

53

50

46

46

43

41

41

Sept.

40

39

36

36

33

32

31

32

32

32

32

32

31

30

29

26

26

29

31

34

39

42

42

41

38

37

34

32

31

30

-

u..n Runoff in *ean acre-fest

160 11,060

565 33,640

684 42,030

1,207 673,500

408 25,070

670 37,210

980 60,250

1,713 101,900

2,842 174,700

646 50,370

163. 11,270

60.1 3,700

33.6 2,010

764 553,200

Peak discharge.- Nov. 20 (6 a.m.) 5,210 sec.-ft.; Nov. 23 (12 m.) 9,040 sec.-ft.
MERCED RIVER BASIN 247

Lake McClure at Exchequer, Calif.

Location.- Indicator in powerhouse, lat. 37°35', long. 120°16', in SW^ sec. 13, T. 4 S., 

K. ib E., at Exchequer Dam on Merced River, 5 miles northeast of Merced Palls. Datum 

of gage is at mean sea level (levels by Merced Irrigation District).

Drainage area.- 1,020 square miles.

Records available.- April 1926 to September 1947.

Extremes.- Maximum contents during year, 284,300 acre-feet May 21 (elevation, 708.1 feet); 

minimum, about 4,300 acre-feet during period of no record Sept. 17-30.

1986-47: 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. Usable capacity, 280,900 acre-feet between elevations 442.6 feet 

(bottom of sluice valve) and 707.0 feet (top of spillway gates) above mean sea level. 

Water passes through power plant at dam and down Merced River to diversion dam of 

Merced Irrigation District's main canal. Records show total contents at 12 p.m.; dead 

storage, 400 acr'e-feet or less.

Cooperation.- Gage-height record, furnished by Merced Irrigation District, obtained in 

connection with a Federal Power Commission project.

Contents, in acre-feet, water year October 1946 to September 1947

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12,600

11,200

10,700

11,200

11,700

12,100

12,500

12,800

13,100

13,400

13,600

13,800

14,000

14,200

14,300

14 , 600

14,800

15,100

15,300

15,600

15,800

16,000

16,200

16,400

16,600

16,800

17,400

17 , 600

17,800

17,900

18,000

NOT.

18,200

18,300

18,000

17,800

17,400

17,400

17,400

17,600

17,600

17 , 800

17,800

18,000

18,200

18,300

18,400

18,600

18,700

18,900

19,400

25,900

27,300

28,000

37,600

42 , 300

44,600

46,200

47,700

48,800

49,800

50,900

-

Deo.

51,800

52,700

53,600

54,300

55,300

58,700

62,100

64,200

65,700

66,900

68,100

69,200

70,400

71,400

72,500

73,300

74,300

75,100

75,800

76,500

77,400

78,000

78,700

79,400

81 , 600

84,100

88,600

91,400

93,200

94,500

95,900

Jan.

97,200

98,300

99,400

100,300

101,200

102,200

103,100

103,900

104,700

105,600

106,400

107,300

108,000

108,800

109,600

110,200

110,900

111,500

112,200

112,800

113,400

114,000

114,600

115,200

116,000

116,600

117,200

118,100

118,700

119,400

120,000

Feb.

120,600

121,400

122,000

122,800

123,500

124,300

125,100

125,900

126,800

128,100

129,100

131,600

136,100

138,600

140,500

142,200

143,800

145,300

146,500

147,700

148,800

149,900

150,900

152,100

153,400

154,600

155,900

157,200

-

-

-

Mar.

158,200

159,900

161,300

162,700

164,200

165,300

166,500

167,600

168,900

171,200

173,500

175,300

176,900

178,700

180,300

182,100

184,100

186,100

188,300

190,300

192,600

195,000

197,900

199,200

200,400

201,300

202,100

202,900

204,000

204,600

205,300

Apr.

205,300

205,300

205,300

205., 100

204,900

204,400

203,800

203,400

202,700

202 , 300

201,900

201,900

202,300

203,600

205,500

207,900

211,000

213,900

216,800

220,500

223,700

225,100

226,000

226,700

226,900

226,900

226,900

226,900

226,900

227,400

-

Hay

230,600

234,300

241,500

247,500

253,000

258,800

263,800

267,700

270,300

271,300

272,600

272,900

273,400

274,200

275,000

276,500

278,600

280,800

282,600

284,000

284,300

284,000

283,700

283,500

283,500

283,500

283,200

282,900

282,400

281,800

282,100

June

282,100

281,600

280,800

280,000

278,300

277,300

276,000

275,700

275,200

274,700

273,900

272,900

271,600

270,300

269,000

267,400

266,100

264,300

262,500

260,800

259,500

257,200

254,800

252,500

249,800

247,300

244,600

241,800

238,900

235,800

July

232,900

230,200

227,200

223,900

221,000

213,000

214,800

211,900

208,800

205,700

202,500

199,400

196,200

192,900

189,500

186,300

182 , 900

179,700

176,500

173,100

169,900

166,100

163,500

160,200

156,800

153,600

150,200

147,200

143,900

140,900

137,800

Aug.

134,800

131,900

129,100

126,200

123,100

120,000

117,000

114,400

111,400

108,400

105,400

102,500

99,600

96,600

93,700

91,000

88,100

85,300

82,100

79,200

76,100

73,100

69,900

66,800

63,800

60,900

57,700

54,900

52,100

49,300

46,800

Sept.

44,200

41,400

38,700

35,800

33,000

30,100

27,200

24,400

21,400

18,400

15,500

12,600

9,930

7,400

6,160

4,360

_

_

_

-

_

_

_

_

-

_

_

_

_

a4,440

-

a No elevation; contents estimated by Merced Irrigation District.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946. . . .

Sept. 30... ..............

Water year 1946-47. . . .

Elevation 

(feet)

529 1

-

651.2

-

Contents 

(acre-feet)

-

4,400

-

Change In contents 

during month 

(acre-feet)

-98,000

-42,400

-10,700
24S MERCED RIVER BASIN

Merced River at Exchequer, Calif.

Location.- Long distance water-stage transmitter, lat. 37°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. 

Records available.- October 1922 to September 1947. November 1915 to October 1922 at site

1 mile upstream. 

Average discharge.- 31 years (1916-47), 1,243 second-feet; affected by storage in Lake

McClure since Apr. 20, 1926.

Extremes.- Maximum discharge during year, 3,280 second-feet (regulated) May 21 (gage 

 height, 5.96 feet); minimum, 19 second-feet (regulated) Oct. 31.

1915-47: 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 (regulated) Jan. 5, 1935. 

Remarks.- Records excellent. No large diversions above station. Flow regulated by Exchequer power plant and Lake McClure (see preceding pagej. 

Cooperation.- Assistance in collecting gage-height record furnished by Merced Irrigation

District.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

0.05 30 1.1 217 4.0 1,610

.1 35 1.5 32

,Z 46 2.0 49

.3 60 2.5 71

.5 93 3.0 97

7 4.5 1,990

3 5.O 2,400

j 5.5 2,850

5 6.0 3,320

.8 148 3.5 1,270

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.

1,260

1,260

716

140

51

38

37

37

37

37

38

39

39

57

42

38

38

37

37

37

37

37

37

38

37

37

37

37

38

39

37

Nov.

37

91

266

228

239

109

51

56

56

56

56

54

54

54

54

56

56

56

57

59

59

59

54

44

46

44

44

44

44

44

-

Dec.

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

44

46

47

51

47

46

46

46

Jan.

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

47

46

46

46

Feb.

46

47

47

47

47

47

47

47

47

47

47

49

49

49

49

49

49

49

49

49

49

44

42

42

42

42

42

46

_

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July............. ..........................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

42

42

42

42

42

42

42

43

43

43

43

43

43

43

43

43

43

44

43

67

121

96

43

534

555

642

745

779

779

835

958

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,

1,

1,

Seoondfoot-days

4,426

2,227

1,385

486,636

1,427

1,306

6,965

40,820

58,880

48,400

54,320

45,280

21,331

286,767

080

110

160

120

080

080

080

080

080

060

050

080

130

190

270

340

470

570

590

590

620

640

660

670

660

670

680

670

670

670

-

May

1,670

1,660

1,660

1,660

1,660

1,640

1,640

1,650

1,640

1,560

1,500

1,540

1,550

1,550

1,570

1,600

1,630

1,650

1,700

2,280

3,000

3,050

2,940

3,150

2,350

2,190

2,100

1,990

1,790

1,650

1,660

Maximum

1,260

266

51

6,020

47

49

958

1,680

3,150

1,840

1,820

1,550

1,410

3,150

June

1,680

1,600

1,540

1,550

1,550

1,540

1,550

1,530

1,480

1,450

1,420

1,460

1,490

1,540

1,600

1,620

1,620

1,630

1,640

1,640

1,640

1,660

1,670

1,670

1,690

1,720

1,770

1,810

1,840

1,800

-

Minimum

37

37

44

37

46

42

42

1,050

1,500

1,420

1,530

1,260

34

34

July

1,790

1,800

1,780

1,750

1,770

1,740

1,730

1,730

1,740

1,770

1,800

1,790

1,790

1,790

1,790

1,810

1,820

1,810

1,770

1,760

1,750

1,740

1,770

1,790

1,790

1,790

1,740

1,690

1,620

1,580

1,530

Aug.

1,550

1,530

1,520

1,510

1,500

1,530

1,490

1,470

1,470

1,470

1,480

1,480

1,470

1,440

1,400

1,390

1,410

1,450

1,500

1,50O

1,500

1,500

1,480

1,470

1,470

1,460

1,450

1,420

1,390

1,320

1,260

Mean

143

74.2

44.7

1,333

46.0

46.6

225

1,361

1,899

1,613

1,752

1,461

711

786

Sept.

1,260

1,290

1,340

1,390

1,410

1,390

1,360

1,350

1,350

1,350

1,350

1,350

1,340

1,270

745

830

490

46

36

a36

35

34

34

35

35

35

35

35

35

35

-

Runoff in 

ao re- feet

8,780

4,420

2,750

965,200

2,830

2,590

13,810

80,970

116,800

96,000

107,700

89 , 810

42,310

568,800

a No gage-height record; discharge Interpolated.
MERCED RIVER BASIN 249

Merced River near Stevinson, Calif.

Location.- Water-stage recorder, lat. 37°22', long. 1200 56', in sec. 36, T. 6 S., R. 9 

b 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 1947.

Extremes.- Maximum discharge during year, 1,200 second-feet May 25 (gage height, 6.39 

feetj; minimum, 112' second-feet (regulated) Apr. 18.

1944-47: Maximum discharge, 4,960 second-feet May 10, 1945 (gage height, 13.15 

feet); minimum, that of Apr. 18, 1947.

Remarks.- Records good. Practically entire flow is diverted above station during 

irrigation season; some return flow enters above. Plow regulated by Lake McClure 

(see p. 247).

Cooperation.- Twelve discharge measurements furnished by Bureau of Reclamation.

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.

337

362

391

377

311

274

255

248

223

208

196

189

175

178

188

202

194

179

179

179

178

177

176

174

172

169

167

166

IS 4

101

161

Nov.

159

158

157

156

156

160

16O

161

161

164

162

164

166

170

172

172

172

172

178

183

196

199

203

206

205

2O3

203

196

185

182

-

Dec.

179

176

175

173

174

175

175

176

201

216

205

196

190

187

184

182

182

182

183

182

182

179

181

183

188

198

306

545

516

353

302

Jan.

274

253

242

232

226

220

216

212

212

210

2O8

203

199

201

198

196

192

192

189

187

185

184

185

185

185

184

184

184

185

187

185

Feb.

184

187

187

185

185

185

184

183

185

185

185

184

188

188

202

202

197

193

189

188

184

183

182

181

177

176

175

174

_

_

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

170

169

170

174

174

172

170

169

168

170

175

175

175

174

173

170

167

166

165

160

162

160

159

158

159

159

158

163

182

173

210

Apr.

201

183

188

189

194

203

197

178

168

179

176

165

157

159

145

133

127

122

127

150

146

131

124

129

137

140

156

165

168

167

-

Secondfoot-days

5,281

6,826

269,820

5,249

4,834

73,963

May

155

143

127

131

146

150

145

136

146

172

203

2O2

184

182

177

166

152

160

174

163

154

508

1,060

1,140

1,140

975

747

685

640

558

446

Maximum

206

545

4,010

210

387

212

1,140

June

334

387

346

313

289

272

256

248

230

216

199

205

199

196

185

183

176

162

151

153

166

175

181

185

172

174

172

183

194

203

Minimum

156

173

156

158

151

128

122

July

181'

173

159

170

187

196

197

183

157

174

178

193

201

193

201

183

184

192

188

193

181

177

174

190

187

189

213

223

181

169

160

Aug.

145

140

156

156

154

147

128

133

159

192

189

160

156

170

166

177

176

182

164

155

170

164

181

168

167

175

178

173

193

202

223

Mean

216

176

220

739

186

169

364

218

161

203

Sept.

208

184

173

165

.163

172

188

212

177

172

159

154

170

177

199

183

157

150

157

157

148

142

143

135

133

134

128

129

134

131

Runoff in 

acre-feet

10,470

13,540

535,200

10,410

22,370

13,000

9,590

146,700
250 MERCED RIVER BASIN

Tenaya Creek near Yosemite, Calif.

Location.- Water-stage recorder, lat. 37°44 I 33", long. 119°33'25", in Yosemite National 

ParTc7~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 1947.

Average discharge.- 34 years (1913-47), 104 second-feet.

Extremes.- Maximum discharge during year, 945 second-feet May 2 (gage height, 4.34 feet); 

minimum daily, 1.0 second-foot Aug. 6-9.

1904-9, 1912-47: 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, Dec. 2, 6-15, 1940.

Remarks.- Records good except those for July 17 to Aug. 12, which are fair. No storage or 

diversion.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

6

11

16

19

21

24

25

26

Oct.

57

13

10

10

8.4

7.1

5.8

5.8

5.2

4.2

3.6

3.0

2.6

2.3

2.0

3.9

5.2

3.9

3.6

3.3

3.0

3.0

3.0

3.0

3.0

3.3

3.3

3.3

3.3

3.6

3.3

Nov.

3.3

3.3

3.3

3.3

3.0

2.3

2.3

3.0

2.6

2.3

2.6

3.0

3.3

3.3

3.3

3.3

3.6

3.6

9.0

20

10

13

277

131

86

69

61

71

69

66

-

Dec.

58

50

42

38

76

76

66

56

48

46

41

40

38

40

38

35

32

28

29

29

28

27

27

32

68

73

69

60

53

48

44

Jan.

44

40

36

35

35

34

34

34

34

35

35

34

31

29

25

25

25

25

24

24

22

22

24

25

25

25

25

22

21

21

22

Feb.

27

29

31

32

32

35

41

42

41

40

35

53

56

55

53

50

47

44

41

41

38

38

40

48

55

60

55

46

_

-

Month

December. ..................................

Calendar year 194$ ......................

March. .....................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

48

60

55

52

46

42

40

40

34

48

48

50

56

66

78

92

102

114

118

127

134

146

171

127

118

134

151

134

116

129

109

Apr.

102

90

93

85

80

73

64

64

68

71

107

142

194

259

294

349

394

342

430

448

380

291

265

267

229

212

212

196

227

335

Seoondfoot-days

1,435

38,893.2

41.4

27,780.7

May

520

660

712

668

636

608

540

484

360

294

253

235

248

259

282

322

338

342

356

363

342

338

313

291

262

224

248

210

186

240

232

Maximum

76

760

1.4

712

June

194

163

140

123

116

104

153

132

114

102

93

81

76

69

64

60

55

48

47

42

38

32

29

28

24

22

22

22

21

20

-

Minimum

2 ^

27

1.4

1.3

1.0

July

18

17

17

15

13

12

10

10

9.0

8.4

7.1

6.4

6.4

5.8

5.8

5.8

5.2

4.5

4.5

4.5

4.5

3.9

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

Aug.

2.6

2.3

1.7

1.3

1.2

1.0

1.0

1.0

1.0

1.2

1.4

1.4

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

Mean

46.3

107

7 21

1.38

76.1

Sept.

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.4

1.4

1.4

1.4

1.4 '

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

-

Runoff in 

acre- feet

2,850

77,160

22 540

82

55,100
MERCED RIVER BASIN 251

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 E., at bridge 500 feet downstream from head of slough between Merced and San Joaquin

Rivers and 4.5 miles northeast of Newman. Datum of gage is 56.44 feet above mean sea

level (levels by Bureau of Reclamation). 

Records available.- October 1941 to September 1947. 

Extremes.- Maximum discharge during year, 46 second-feet May 25 (gage height, 1.13 feet);

no now for several months.

1944-47: Maximum discharge, 990 second-feet May 10, 12, 1945 (gage height, 7.50

feet); no flow for several months each year. 

Remarks.- Records fair. Slough flows from Merced River to San Joaquin River, bypassing

gaging station on San Joaquin River near Newman.

Discharge, in second-feet, water year October 1946 to September 1947

Day1

1

2

3

4

5

6

7

8

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 1946 ......................

January ....................................

February ...................................

March ......................................

April ......................................

May........................................

June. ......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

o

0

0

17,609.8

O

O

O

0

123.9

0

O

0

0

123.9

May

0

0

o

0

0

0

0

o

0

0

0

0

0

u

0

0

o

0

0

0

0

20

37

40

22

3.4

1.0

.5

0

0

Maximum

0

0

o

667

0

0

O

0

40

0

O

0

0

4O

June

Minimum

0

o

0

0

o

0

o

0

0

0

0

0

0

0

July Aug.

Mean

0

o

o

48.2

0

0

0

O

4.00

0

O

O

O

.34

Sept.

Runoff in 

acre-feet

O

0

0

34,930

O

0

O

O

246

0

0

0

O

246

ORESTIMBA CREEK BASIN

Orestimba Creek near Newman, Calif.

Location.- Water-stage recorder, lat. 37°19'09", long. 121°07'14", in Nltf£ sec. 20, T. 7 

S., K. 8 E., at highway bridge, 3 miles downstream from Oso Creek and 5 miles west of 

Newman. Datum of gage is 191.86 feet above mean sea level (unadjusted).

Drainage area.- 129 square miles.

Records available.- January 1932 to September 1947.

Average discharge?- 15 years, 18.7 second-feet.

Extremes.- wo now during year.

T332-47: Maximum discharge, 4,900 second-feet Jan. 21, 1943 (gage height, 5.95 

feet), from rating curve extended above 1,200 second-feet on basis of slope-area computations at gage heights 4.26 and 5.24 feet and logarithmic plotting; no flow during 

several months each year.

Remarks.- No flow during year. No storage or large diversion.
252 TUOLUMNE RIVER BASIN 

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°57', long. 119°47', in 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 1947 (1923-30, gage heights only).

Extremes.- Maximum contents during year, 337,700 acre-feet June 21-24 (elevation, 3,794.4 

reet); minimum, 61,900 acre-feet Mar. 16, 17 (elevation, 3,604.7 feet).

1923-47: 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 

 37725.5 feet in 1923 and raised to 3,812.0 feet in 1937; storage began Apr. 6, 1923. 

Total usable capacity, 340,400 acre-feet between elevations, 3,512.0 feet (somewhat" 

above bottom outlet) and 3,795.8 feet (spillway crest elevation) above mean sea level. 

Water flows down Tuolumne River 15 miles to Early intake, where part is diverted 

through Hetch Hetchy aqueduct to Moccasin Creek power plant. At Moccasin Creek diversion dam, water 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 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.

202, 50C

201,600

200, 60C

199,50C

198,400

197,000

195,900

194,600

193,400

192,100

191,000

189,600

188,400

187,200

185,800

184,700

183,500

182,300

181,100

179,700

178,300

177,100

175,800

174,600

173,200

172,000

170,600

169,400

167,900

166,700

165,200

Nov.

163,900

162,400

161,100

159,800

158,400

157,000

155,700

154,300

153,100

151,800

150,400

149,300

148,200

146,900

145,500

144,400

143,200

142,000

141,900

141,600

140,500

139,900

143,200

143,400

143,100

142,600

142,000

141,600

141,100

140,500

-

Dec.

140,000

139,400

139,000

138,800

138,800

138,600

138,500

138,100

137,400

136 , 800

136,100

135,300

134,600

133,800

133,000

132,200

131,400

130,400

129,400

128,500

127,500

126,300

125,400

124,400

124,100

123,700

123,500

122,700

122,100

121,200

120,400

Jem.

119,700

118,800

118,000

117,110

116,300

115,200

114,400

113,500

112,500

111,600

110,700

109,800

108,900

108,000

107,100

106,000

105,100

104,100

102,900

101,800

100,800

99,700

98,600

97,400

96,300

95,200

94,300

93,200

92,200

91,100

90,200

Feb.

89,100

88,100

87,100

86,200

85,300

84,400

83,600

82,800

82,100

81,000

80,200

80,100

80,000

79,600

79,000

78,300

77,700

76,800

76,000

75,300

74,500

73,700

.72,900

72,200

71,500

70,900

70,300

69,600

_

_

-

liar.

68,900

68,800

68,400

67,800

67,100

66 , 300

65,600

64,900

64,100

64,000

63,700

63,200

62,700

62,300

62,100

61,900

61,900

62,000

62,100

62,300

62,700

63,300

64,200

64,500

64,7OO

65,000

65,600

66,100

66,500

67,200

67,600

Apr.

67,900

68,100

68,200

68,400

68,400

68,400

68,300

g68,200

68,100

68.0OO

68,100

68,600

69,700

71,700

74,300

77,500

81,500

85,400

89,800

94,700

98,900

101,600

104,400

105,400

107,000

108,400

110,200

111,600

113,600

117,200

-

May

123,900

133,500

144,400

154,900

164,800

174,700

183,400

190,500

195,100

198,100

200,500

202,700

205,200

207,900

212,100

217,300

223,000

229,500

236,900

244,900

252,600

260,500

267 , 800

274,800

281,300

286,700

290, 600

293,300

295,700

299,600

302,900

June

5305,300

£307,400

5308,900

310,200

311,300

312,200

315,600

318,800

320, 700

322,800

324,500

325,900

327,200

328,700

330,400

332,200

333,500

334,700

335,800

337,200

337,700

337,700

337,700

337,700

337,500

337,500

337,400

335,200

331,800

328,300

July

324,900

321,300

317,900

314,100

310,600

307,000

303,100

299,200

295,700

291,800

287 , 800

284,, 000

280,000

276,200

£272,500

g268,400

#64,500

g>60,600

5256,800

£53,000

£49,500

246,800

245,900

245,000

244,000

243,200

242,100

241,100

240,300

239,100

238,100

Aug.

236,900

235,700

234,500

233,300

232,000

230, 700

229,500

228,300

227 , 200

225,800

224,700

223,400

222,200

220, 900

219,700

218,600

217,300

216,500

215,300

214,000

212,300

210,800

209,700

208,400

207,100

205,700

204,400

203,300

201,900

200, 600

199,400

Sept.

198,100

196,800

195,400

194,300

192,900

191,600

190,200

189,100

187,800

186,600

185,200

183,800

182,400

181,200

179,900

178,500

177,100

175,600

174,400

173,100

171,700

170,400

168,900

167,500

166,100

164,800

163,500

162,000

160,500

159,100

-

g Computed from graph based on gage readings.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946.....

Sept. 30..................

Water year 1946-47.....

Elevation 

(feet)

-

3,689.2

-

Contents 

(acre-feet)

-

159,100

-

Change in contents 

during month 

(acre-feet)

-112,400

-40,300

-44,100
TUOLUMNE RIVER BASIN 253

Tuolumne River near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°56', long. 119°48', in SE£ sec. 17, T. IN., R. 

zu E., 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 1947.

Average discharge.- 32 years (1915-47), 983 second-feet.

Extremes - Maximum discharge during year, 2,290 second-feet (regulated) July 13 (gage 

height', 8.83 feet); minimum, 10 second-feet (regulated) Feb. 20.

1915-47: 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, 1.2 second-feet (regulated) Jan. 18, 1931.

Remarks.- Records excellent. Flow regulated by Hetch Hetchy Reservoir (see preceding 

page); no diversion above station.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

5.3 

5.5 

6.0

540

590

730

6.5 

7.0 

7.5

895

1,090

1,330

8.0 

8.5 

9.0

1,640

2,010

2,440

Discharge, in second-feet, water year October 1946 to September 1947

Daw

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

760

757

754

760

766

763

760

754

751

748

760

766

763

760

757

754

748

745

757

763

760

754

748

745

766

775

772

766

760

757

748

Nov.

745

766

778

772

766

760

754

748

745

739

733

730

724

718

712

706

718

724

730

727

718

715

" 739

730

730

733

739

670

638

600

-

Dec.

568

565

562

560

682

736

712

709

706

700

697

691

688

685

679

700

730

727

736

751

754

748

742

736

730

730

730

724

718

712

706

Jan.

697

700

712

718

715

715

712

709

706

706

703

700

700

700

694

715

730

736

748

745

742

739

751

769

772

769

766

760

760

757

754

Feb.

751

748

745

742

739

739

748

754

754

751

748

754

761

754

751

748

752

765

769

763

733

730

736

742

739

736

736

733

_

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

Bay. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Hater year 1946-47 ......................

liar.

733

733

730

730

727

724

721

718

730

745

742

742

739

736

733

733

733

733

733

733

736

739

742

742

664

585

588

588

590

590

590

Apr.

592

575

568

568

568

568

568

568

568

565

565

568

570

572

580

588

590

598

605

618

588

572

575

580

582

585

588

590

592

595

Secondfoot-days

23 497

2l] 807

21,614

436,325

£2,600

2l)s02

17,409

19, 308

26,735

53,018

21,466

21,570

291,747

May

605

615

608

630

608

590

585

582

585

582

575

590

600

605

610

618

628

638

649

625

612

622

635

643

625

602

605

610

709

757

760

Haximus

775

778

754

6,090

772

769

745

618

760

2,210

2 *709 £70

745

2,270

June

763

766

769

772

775

775

775

781

784

784

787

769

757

760

763

763

766

766

766

769

769

769

754

730

730

730

733

1,710

2,190

2,210

Minimum

745

600

560

294

694

730

585

565

575

730

572

682

676

560

July

2,220

2,220

2,220

2,210

2,220

2,220

2,240

2,240

2,240

2,250

2,260

2,240

2,260

2,270

2,240

2,220

2,200

2,180

2,150

2,140

2,110

1,210

572

572

580

585

585

582

580

582

620

Aug.

685

709

706

703

700

697

694

697

697

694

691

691

688

685

691

694

691

688

685

688

697

694

691

688

685

682

691

697

694

688

685

Mean

758

727

697

1,195

729

747

703

580

623

891

1,710

692

719

799

Sept.

682

679

676

679

700

697

694

709

715

712

709

718

724

721

718

727

730

733

736

733

745

745

742

736

730

727

745

742

736

730

Runoff in 

acre-feet

46,610

43, 250

42,870

865,400

44,830

41,500

43,240

34,530

38,300

53,030

105,200

42,580 

42,780

578,700
254 TUOLUMNE RIVER BASIN

Don Pedro Reservoir near La Grange, Calif.

Location.- Water-stage recorder, lat. 37°42'48", long. 1SO°24'14", in SWi sec. 35, T. 2 

S., K. 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 1947 (1924-30, gage heights only).

Extremes.- Maximum contents during year, 247,800 acre-feet Apr. 21 (elevation, 591.8 

feeTJT minimum, 44,100 acre-feet Sept. 30 (elevation, 492.3 feet).

1924-47: Maximum contents, 292,100 acre-feet June 13, 1937 (elevation, 606.1 feet); 

minimum, 29,200 acre-feet Sept. 1-3, 5, 1934; minimum elevation, 475.0 feet Sept. 1, 

2, 1934.

Remarks.- Reservoir is formed by concrete gravity-type dam, completed about Jan. 1, 1923; 

storage began Nov. 14, 1922. Total usable capacity, 260,000 acre-feet between elevations 476 feet (mutually agreed-upon minimum) and 605.55 feet (top of drum-type 

spillway gates) above mean sea level. Water passes through power plant at dam and 

down Tuolumne River to La Grange Dam, 4 miles downstream, where it is diverted into 

Turlock and Modesto Canals for irrigation. This reservoir is operated Jointly by 

Turlock and Modesto Irrigation Districts. Records show total contents at 12 p.m., of 

which 30,000 acre-feet (mutually agreed-upon minimum) is not available for release.

Cooperation.- Water-stage recorder .graph furnished by Turlock and Modesto Irrigation 

Districts.

Contents, in aere-feet, water year October 1946 to September 1947

Day1

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.

104,200

103,800

102,200

100,700

99,200

98,100

96,600

95,600

94,500

93,300

92,100

90,700

89,500

88,200

87,200

86 , 500

86,100

85,400

84,700

84,200

83,200

82,600

81,900

81,100

80,400

79,600

79,000

78,100

77 , 400

76 , 500

75,700

Nov.

74,7OO

73,900

73,400

72,400

71,400

70,400

69,300

68,400

67,400

66,400

65,300

64,200

62,900

61,700

60,600

59,500

58,600

57,200

56,700

63,100

63,300

62,900

71,100

74,400

75,200

75,500

75,500

75,700

75,100

74,600

-

Dec.

74,300

73,200

72,400

71,400

70,600

'73,500

75,500

76,400

76,500

76,500

76,200

76,100

75,700

75,200

74,800

74,300

73,800

73,200

72,700

72,000

71,500

71,000

70,400

70,000

71,800

73,900

77,100

78,700

79,300

79,500

79,600

Jim.

80,500

81,100

81,700

82,000

82,600

83,100

83,400

83,900

84,200

84,500

84,900

84,900

85,400

85,800

86,400

86,700

87,400

88,000

88,500

89,200

89,700

90,400

90,900

91,500

92,400

93,300

94,000

94 , 800

95,700

96,600

97,600

Feb.

98,300

99,200

100,100

101,100

101,800

103,000

103,800

104,900

106,100

107,700

109,100

114,100

122,100

125,700

128,600

131,400

133,700

136,000

137,700

139,800

141,900

143,800

145,500

147,200

149,100

151,100

153,000

155,000

-

-

-

Mar.

156,500

159,400

161,900

164,100

166,200

168,200

170,000

if 2, 000

174,100

180,100

185,100

188,900

191,900

194,900

197,900

200,700

203,500

206,600

209,400

212,200

215,100

218,500

221,700

224,600

226,900

228,900

231,000

233,300

235,600

239,200

242 , 200

Apr.

243,300

243,900

244,800

244,800

244,200

243,300

242,400

241,300

240,100

238,900

238,000

237,400

237,100

237,700

238,900

240,700

242,700

244,800

246,600

247,500

247,800

246,900

245,100

243,300

241 , 300

239,200

237,100

235,400

233,600

232,100

-

May

232,400

234,200

235,900

237,700

238,600

240,400

241 , 600

241,600

240,400

238,600

235,600

233,000

230,400

228,300

226,300

224,800

223,700

222,500

222,200

223,100

223,400

223,700

224,000

223,700

223,700

222,800

222,800

223,100

222,500

222,500

224,300

June

224,800

224,800

224,300

223,700

223,100

222,000

221,400

222,500

222,500

222,200

221,400

220,500

219,100

217,600

216,200

214,200

212,200

210,200

208,000

205,700

203,500

200,700

197,900

195,200

192,400

189,700

187,000

184,300

184,800

185,400

-

July

186,200

186,700

187,300

188,100

188,300

188,600

189,200

190,000

190,500

191,300

191,900

192,700

193,000

193,800

194,600

195,400

196,000

196,500

196,800

197,100

197,100

197,400

194,900

191,600

188,300

184,800

181,400

177,700

174,300

171,000

167,400

Aug.

164,100

160,700

156,700

153,300

150,300

147,000

143,800

140,700

137,400

133,900

130,400

127,300

123,900

120,800

117,500

114,300

111,000

107,500

104,500

101,700

59,200

96,600

94,100

91,500

88,800

86,400

83,900

81,400

78,900

76,700

74,300

Sept.

73,100

71,400

70,000

68,500

67,100

65,800

64,700

63,300

62,100

60,700

59,400

57,900

56,500

55,800

54,400

53,200

52,200

51,100

50,000

48,800

48,100

46,400

45,800

45,600

45,200

44,800

44,600

44,700

44,200

44,100

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946....

Au£ 31

Sept. 30..... ............

Water year 1946-47....

Elevation 

(feet)

-

531 9

492.3

-

Contents 

(acre-feet)

'

-

97 600

232 100

224 30O

44,100

-

Change in contents 

during month 

(acre-feet)

-123,600

-30,200

-61,400
TUOLUMNE RIVER BASIN 255

Tuolumne River above La Grange Dam, near La Grange, Calif.

Location.- Water-stage recorder, lat. 37 0 42'35", long. 120°24'45", in NE^ sec. 3, T. 3 

5., K. 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.

Hecoras available.- March 1915 to September 1947. August 1895 to September 1917 at La 

lirange uam, a.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.- 52 years (1895-1947), 2.575 second-feet, using 1895-1916 records of 

combined now of river and canals, and including Hetch Hetchy diversion to San Francisco.

Extremes.- Maximum daily discharge during year, 3,130 second-feet (regulated) May 5; minimum daily, 426 second-feet (regulated) Mar. 16.

1895-1947: 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 (regulated) 

on many days in October and November 1931.

Remarks.- Records excellent. A small amount of water is diverted above station for irrigation. Diversion through Hetch Hetchy aqueduct to San Francisco began Oct. 19, 1934; 

for present year it amounted to an average of 96 second-feet. Plow regulated by Don 

Pedro power plant, Don Pedro Reservoir (see preceding page), Hetch Hetchy Reservoir 

(see p. 252), and Lake Eleanor (see p. 259).

Rating table, vater year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

6.1 422 7.0 840

6.3 496 7.5 1.16O

6.5 580 8.0 1,510

6.8 730 8.5 1,910

9.O 2,340

9.5 2,780

1O.O 3,23O

Discharge, in second- feet, water year October 1946 to September 1947

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,560

1,540

1,610

1,560

1,520

1,220

1,360

1,330

1,330

1,300

1,320

1,310

1,180

1,310

1,320

1,190

1,130

1,140

1,120

1,000

1,160

1,180

1,180

1,150

1,160

1,140

1,040

1,200

1,160

1,200

1,230

Nov.

1,230

1,200

1,090

1,240

1,270

1,280

1,270

1,270

1,240

1,140

1,180

1,320

1,420

1,380

1,380

1,370

1,230

1,450

1,450

1,400

1,390

1,410

1,300

1,140

1,280

1,300

1,340

1,140

1,280

1.E80

-

Dec.

1,140

1,360

1,380

1,370

1,400

1,420

1,240

1,130

1,340

1,320

1,340

1,370

1,380

1,330

1,200

1,360

1,380

1,380

1,420

1,440

1,380

1,240

1,390

1,400

1,140

1,320

1,290

1,270

1,190

 1,340

1,320

Jan.

770

884

933

961

850

1,020

984

965

976

946

916

916

914

899

848

838

848

792

680

833

836

807

824

796

730

592

806

802

79O

782

807

Feb.

756

628

770

813

792

778

797

728

622

724

734

733

714

714

674

555

690

664

666

650

566

488

460

603

571

533

533

534

_

_

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April.. ....................................

May. .......................................

June. ......................................

July.... ...................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

634

568

733

728

724

652

672

556

506

612

576

548

532

531

478

426

501

526

546

566

538

479

448

568

566

451

549

647

847

744

922

Apr.

1

1

1

2

2

2

2

Z

2

2

2

2

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

3

3

3

Secondfoot-days

39,150

38,670

40,980

921,830

26,345

18,490

18,374

73,740

82,750

59,640

69,540

63,630

34,057

565,366

,640

,580

,850

,180

,180

,170

,170

,180

,180

,200

,190

,2OO

,190

,190

,190

,180

,160

,170

,180

,760

,070

,100

,O90

O9O

,090

,12O

,100

100

120

120

-

May

3,120

3,120

3,120

3,100

3,130

3,100

3,110

3,120

3,120

3,110

3,090

3,O90

3,080

3.O7O

3,O9O

3,100

3,120

3,110

2,530

2,280

2,280

2,280

2,27O

2,270

2,270

2,26O

1,920

1,610

1,680

1,600

1,600

Maximum

1,610

1,450

1,440

9,910

1,020

813

922

3,120

3,130

2,230

2,340.

2,350

1,440

3,130

June

1,700

1,810

1,840

1,830

1,820

1,820

1,790

1,750

1,790

1,840

1,800

1,840

1,850

1,860

1,800

2,040

2,120

2,130

2,150

2,130

2,140

2,150

2,160

2,190

2,190 .

2,230

2,220

2,220

2,220

2,210

-

Minimum

1,000

1,090

1,130

1,000

592

460

426

1,580

1,6OO

1,700

2,060

1,630

475

426

July

2,230

2,230

2,250

2,230

2,230

2,210

2,210

2,220

2,210

2,230

2,230

2,23O

2,210

2,240

2,O6O

2,250

2,260

2,250

2,260

2,230

2,210

2,250

2,220

2,260

2,280

2,270

2,290

2,300

2.33O

2,320

2,340

.Aug.

2,350

2,:

2,.

2,;

540

540

>10

2,200

2,210

2,]

2,3

2,]

L8O

L70

150

2,060

2,140

2,]

2,]

2,]

L50

L50

L3O

2,130

2,100

2,C

2,]

2,C

)60

L20

60

2,010

1,840

l»£

l.f

l»£

OO

S60

00

1,9OO

1,920

l,£

i,£

1,S

l,£

90

90

00

40

1,630

Mean

1,263

1,289

1,322

2,526

850

66O

593

2,458

2,669

1,988

2,243

2,O53

1,135

1,549

Sept.

1,140

1,440

1,440

1,440

1,430

1,270

1,030

1,350

1,240

1,290

1,360

1,370

1,340

898

1,230

1,220

1,130

1,230

1,230

1,210

980

1,360

955

847

874

868

794

475

857

759

-

Runoff in 

acre feet

77,650

76,700

81,280

1,828,000

52,250

36,670

36,440

146,300

164,100

118,300

137,9OO

126,200

67,550

1,1£1,000

Note.- Discharge for period Mar. 29 to Aug. 31 is sum of flow in Turlock and Modesto Canals.
256 TUOLUMNE RIVER BASIN

Tuolumne River at Modesto, Calif.

Location.- Water-stage recorder, lat. 37°37'40", long. 120°59'20", in Sw£ sec. 33, T. 3 

S., R. 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). Prior 

to July 11, 1947, at highway bridge 0.2 mile downstream, at same datum.

Records available.- 1878-84, 1891-97 (gage heights only), October 1943 to September 1947. 

Marcn 194U to December 1946 in reports of Division of Water Resources, Department of 

Public Works, State of California.

Extremes.- Maximum discharge during year, 2,220 second-feet Nov. 23 (gage height, 42.13 

reet); minimum daily, 189 second-feet July 5.

1943-47: Maximum discharge, 8,070 second-feet Feb. 5, 1945 (gage height, 51.32 

feet); minimum observed, that of July 5, 1947.

Remarks.- Records fair except those for periods of no gage-height record and those based 

on wire-weight gage readings, which are poor. Plow regulated by reservoirs and power 

plants above station. 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. Twelve discharge measurements furnished by Bureau of Reclamation.

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.

270

270

276

291

324

330

330

318

357

737

801

840

827

827

922

1,070

905

876

853

905

856

948

965

975

968

952

938

866

971

1,180

1,320

Nov.

1,350

1,340

1,320

1,240

1,390

1,410

1,42O

1,420

1,420

1,390

1,290

1,330

1,460

1,550

1,550

1,510

1.52O

1,46O

1,740

1,820

1,710

1,710

1,82O

1,640

1,490

1,64O

1,650

1,650

1,480

1,620

-

Dec.

1,630

1,470

1,660

1,680

1,68O

1,750

1,780

1,580

1,460

1,640

1,640

1,640

1,65O

1,700

1,610

1,3OO

1,620

1,690

1,670

1,630

1,450

1,150

978

952

948

932

942

995

1,050

988

9O5

Jan.

886

869

859

849

843

840

846

836

846

849

849

849

849

853

849

853

856

859

859

862

866

866

872

876

876

872

866

1,020

889

859

846

Feb.

856

843

836

836

840

830

817

817

814

808

801

817

811

808

849

827

8O4

795

795

792

795

792

788

753

760

798

808

808

_

_

-

Month

October. ...................................

November . ........................ .........

December. ....................... ..........

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April .....................................

May.......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

804

804

808

840

849

853

856

824

753

772

766

772

808

785

779

753

715

731

731

731

728

731

731

721

721

728

718

731

595

378

370

Apr.

370

370

38O

38O

403

38O

370

360

370

340

330

324

350

330

32O

310

310

330

321

330

340

340

330

330

321

291

290

300

290

280

-

Secondfoot days

23, 268

45,340

43,970

550,561

26 j769

22 > 698

22 » 886

1OP 09O

Qt 739

7 f 679

6 f 900 

7 618

19^063

245,020

May

267

290

294

290

290

280

27U

261

26O

267

28 O

285

282

280

280

291

303

29O

273

28O

28O

258

280

3O3

300

294

285

280

29O

280

276

Maximum

1,320

1,820

1,780

~

' »"""

1,020

856

856

403

303

315 

£51

282

872

1,820

June

290

300

290

290

290

300

309

310

312

315

300

282

273

260

250

240

230

220

210

2OO

198

210

220

225

246

24O

230

219

210

21O

-

Minimum

270

1,240

905

246

836

753

37O

280

258

198

189

216

253

189

July

200

200

190

190

189

200

210

225

230

231

230

232

230

228

224

226

234

228

220

226

226

220

216

216

224

228

244

249

236

251

247

Aug.

234

240

257

249

266

242

273

251

218

251

282

27O

247

266

249

242

242

' 244

236

216

247

251

242

232

238

232

228

234

236

244

259

Mean

751

1,511

1,418

1,508

864

Sll

738

336

282

256

223

246 

635

671

Sept.

253

277

390

405

405

462

628

440

419

414

419

416

432

443

745

816

826

833

840

85O

844

844

872

864

850

840

840

816

805

775

-

Runoff in 

acre feet

46,150

87^210

1,092,000

53,100

45,020 

45,390

20,010

17,330

15,230

13*690

15,110 

37,810

486.000

Note.- No gage-height record Mar. 31 to July 10;' discharge computed on basis of 7 discharge measurements, once- to twice-weekly wire-weight gagereadlngs, and unpublished records for stations at

Tuolumne City and at Hiekman Bridge and Dry Creek near Modesto.
TUOLUMNE RIVER BASIN 257

Falls Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°58", long. 119°46', in NE£ sec. 3, T. 1 N., R.

20 E.; in Yosemite National Park, 0.2 mile upstream from Wampana Falls, 1 mile upstrean

from mouth, and 2 miles northeast of Hetch Hetchy. Altitude of gage, about 6,600 feet

(from topographic map). 

Drainage area.- 45.2 square miles, 

necoras available.- November 1915 to September 1947. 

Average discharge"- 31 years (1916-47), i40 second-feet. 

Extremes - Maximum discharge during year, 1,010 second-feet May 4 (gage height, 5.67

TeeTTT no flow Sept. 2-30.

1915-47: Maximum discharge, 6,300 second-feet Dec. 11, 1937 (gage height, 8.90

feet), from rating curve extended above 1,250 second-feet on basis of velocity-area

studies; no flow at times during several summers. 

Remarks.- Records good. No storage or diversion.

Rating table, water year 1946-47, except period of ioe effect 

(gage height, in feet, and discharge, in second-feet)

1.35 0 1.8 0.80 3.3 88

1.40 .08 2.0 2.1 3.6 148

1.45 .13 2.2 4.6 3.9 220

1.50 .18 2.4 9.5 4.2 307

1.55 .24 2.6 17 4.5 409

1.60 .30 2.8 28 5.0 605

1.7 .48 3.0 45 5.5 885

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.

16

30

25

26

23

17

15

13

13

12

11

9.2

8.1

7.3

6.4

10

9.8

9.8

9.2

8.4

7.8

7.3

7.0

7.3

8.1

8.1

7.5

7.0

6.7

6.4

6.0

Nov.

5.6

5.6

4.1

3.6

3.8

3.6

3.5

3.9

3.8

3.6

4.1

4.4

4.6

5.6

5.6

5.4

5.4

5.4

77

58

26

53

433

187

109

105

94

76

66

59

-

Dec.

55

52

48

43

16$

133

85

65

54

49

*47

45

43

43

41

38

36

33

32

34

32

31

30

41

96

83

80

65

54

47

44

Jan.

41

b37

b34

b32

32

33

30

30

31

32

33

31

b30

b29

*b28

b27

b26

b26

26

26

26

26

27

29

30

'30

33

40

45

44

b40

Feb.

bio

42

43

45

43

47

49

49

53

60

53

172

129

88

*74

68

59

55

50

49

46

45

52

58

65

73

73

62

_

_

-

Month

October. ...................................

November ...................................

December ....................................

Calendar year 1945 ......................

January .....................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June. ......................................

July... ....................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

75

133

90

71

60

53

50

55

54

113

83

85

92

96

103

113

123

138

148

159

161

172

228

161

123

115

138

150

138

172

131

Apr.

113

94

109

99

92

81

71

70

71

68

92

129

175

242

317

373

445

453

445

513

456

304

220

220

207

204

242

228

247

356

-

May

557

754

885

852

732

760

705

557

384

282

234

204

253

301

359

453

498

506

549

596

561

529

529

483

472

427

333

264

210

273

333

Second- Maximum foot-days "axi 1"1

358.4 30

1,424.6 433 

1,748 169

50,513.5 820

984 45

1,742 172

3,533 228

6,736 513 

14,835 885

4,457 398 

464.0 34

25.5 2 4

!i !i

36,357.6 885

June

242

225

207

175

159

146

241

398

273

220

202

168

148

155

159

163

148

135

129

140

117

80

62

56

56

64

56

49

45

39

Minimum

6*0

3.5

30

.3

26

40

50

68

204

39

2.7

.1

0

0

July

34

33

30

29

27

26

24

23

22

20

18

17

16

15

14

14

12

12

10

9.5

8.9

8.1

7.3

6.4

5.6

5.0

4.3

3.8

3.4

3.0

2.7

Aug.

2.4

2.2

2.1

2.0

1.9

1.6

1.5

1.3

1.2

1.1

1.0

.8

.8

.7

.6

.5

.5

.4

.4

.4

.3

.3

.3

.2

.2

.2

.2

.1

.1

.1

.1

Sept.

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

-

.._. Runoff in Mean acre-feet

11.6 711

47 5 2 830

56 !4 3^470

138 100,200

31*7 1 950

62.2 3,460

116 7,110

225 13,360

149 8 ) 840

15*0 920

 82 51

.003 .2

99.6 72.120

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
258 TUOLUMNE RIVER BASIN

Cherry Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 38°00', long. 119°54', in SW£ sec. 28, T. 2 N., R. 

iy E. , 2.5 miles northwest of Lake Eleanor Dam, 4 miles upstream from Eleanor Creek, 

and 7.5 miles northwest of Hetch Hetchy. Altitude of gage, about 4,500 feet (from 

topographic map).

Drainage area.- Ill square miles.

Records available.- April 1910 to September 1947.

Average discharge.- 37 years, 367 second-feet.

Extremes.- Maximum discharge during year, 3,170 second-feet Nov. 23 (gage height, 8.02 

reetj; minimum, 0.8 second-foot Sept. 9-13, 30.

1910-47: 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 small reservoirs increases normal summer flow.

Rating table, vater year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

0.8 0.7 1.4 18 2.0 76 3.4 610

.9 1.5 1.5 24 2.1 96 4.0 850

1.0 2.8 1.7 39 2.2 124 5.0 1,320

1.1 5.3 1.8 48 2.4 194 . 6.2 2,000

1.2 9.4 1.9 60 2.7 343

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.

541

137

105

96

52

40

32

30

26

21

17

15

14

13

12

52

60

36

29

24

22

20

22

27

23

21

19

18

18

17

16

Nov.

15

14

12

12

11

10

9.1

10

12

11

12

11

11

16

18

18

18

16

576

339

158

207

1,910

528

298

298

244

198

172

162

-

Dec.

162

148

131

118

746

405

249

194

158

148

144

144

138

138

131

113

107

90

96

116

96

96

88

217

429

254

238

162

141

118

110

Jan.

118

99

88

88

92

92

82

84

82

88

86

84

80

76

65

63

60

60

60

65

66

74

78

84

86

90

.92

84

99

104

96

Feb.

99

107

110

121

96

121

124

131

158

180

148

738

385

254

207

183

158

148

141

148

134

141

158

187

194

216

194

151

_

_

-

Month

October. ............................ .

November. ........................ .........

December . ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June ............................... . .....

July.. .....................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

224

418

207

190

162

144

134

162

141

288

212

207

238

288

313

351

397

433

473

465

461

495

578

347

293

338

385

529

389

575

347

Apr.

298

229

293

234

203

180

165

187

190

198

389

473

638

842

948

1,060

1,120

1,060

1,120

1,160

944.

690

572

600

510

575

706

578

730

1,060

-

May

1,580

1,850

1,960

1,830

1,750

1,760

1,450

1,120

738

614

550

522

650

770

886

1,080

1,160

1,090

1,170

1,220

1,130 '

1,120

1,030

948

926

826

690

465

385

908

794

forays MaXiBUffi

1,575 541

5,326.1 1,910

5,625 746

130,888.7 2,000

2,565 118

10^184 578

17,952 1,160

32,972 1,960

8,734 965

502.6 49

50 .4 2.3

31.0 1.4

90,649.1 1,960

June

564

518

461

372

333

298

965

816

507

409

368

276

249

271

271

271

229

207

194

194

169

104

83

80

80

141

99

80

66

56

-

Minimum

12

88*9 1

1.9

60

96

134

165

56

3.0

1.1

.8

.8

July

49

44

38

35

33

30

27

24

22

19

18

17

16

14

14

12

11

10

9.5

8.3

7.9

6.7

6.0

5.3

4.6

4.3

3.8

3.6

3.4

3.2

3.0

Aug.

2.8

2.8

2.5

2.5

2.2

2.2

2.1

1.9

1.8

1.7

1.6

1.6

1.5

1.5

1.5

1.4 1.'4

1.4

1.4

1.3

1.2

1.1

1.1

1.1

1.1

1.2

1.3

1.3

1.3

1.3

1.3

Sept.

1.4

1.3

1.3

1.2

1.1

1.1

1.0

1.0

.9

.8

.8

.8

.8

.9

.9

.9

1.0

.9

.9

1.1

1.2

1.3

1.3

1.2

1.1

1.1

1.0

.9

.9

.9

u o« Runoff in 

Me^ acre-feet

50.8 3,120

178 10,560

181 11,160

359 259,600

82.7 5,090

183 10,180

598 35^610

1,064 65,400

291 17 320

16.2 '997

1.63 100

1.03 61

248 179,800
TUOLUMNE RIVER BASIN 259

Lake Eleanor near Hetch Hetchy, -Calif.

Location.- Water-stage recorder, lat. 37°58', long. 1190 53', in NW£ sec. 3, T. 1 N., R. 

19 E., at dam on Eleanor Creek, 1.7 miles upstream from Miguel Creek and 5.5 miles 

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 1947 (1919-30, gage heights only).

Extremes.- Maximum contents during year, 27,200 acre-feet May 5, June 19 (elevation, 

4,b6i.l feet); minimum, 1,090 acre-feet Sept. 29, 30 (elevation, 4,627.2 feet).

1919-47: 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. Usable capacity, 26,100 acre-feet between elevations 4,620.9 feet . 

(natural outlet of old lake) and 4,660.0 feet (top of 5-foot flashboards) above mean 

sea level. 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. except for a-few days when daily 7 a.m. readings were used.

Contents, in acre-feet, water year October 1946 to September 1947

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.

h6,aso

h6, 920

h6, 920

h6, 990

h6,990

h6,990

h6,990

6,990

6,920

6,920

6,920

6,850

6,780

6,710

6,580

6,580

6,510

6,510

6,510

6,510

6,440

6,370

6,370

6,370

6,370

6,300

6,230

6,230

6,160

6,160

6,090

Nov.

6,090

6,090

6,020

5,960

5,960

5,890

5,820

5,750

5,680

5,680

5,610

5,540

5,540

5,410

5,270

5,160

5,040

4,930

5,890

6,780

6,850

8,290

10,500

11,300

11,800

12,200

12,500

12,900

13,100

13,400

-

Dec.

13,500

13,700

13,800

14,000

15,300

16,000

16,300

16,500

16,600

16,800

17,000

17,100

17,200

17,300

17,300

17,400

17,400

17 , 300

17,300

17,300

17,200

17,100

17,100

17,200

17,500

17,800

18,100

h!8,200

h!8,200

h!8,200

h!8,300

Jan.

h!8,200

h!8,200

h!8,200

17,900

17,800

17,700

17,600

17,400

17,300

17,300

17,200

17,100

16,900

16,800

16,600

16,600

16,400

16,300

16,100

16,000

15,900

15,700

15,400

15,300

15,100

15,000

14,900

14,700

14,700

14,600

14,400

Feb.

14,300

14,200

14,200

14,100

14,000

13,900

13,900

13,800

13,800

13,800

13,800

14,900

15,500

15,800

16,000

16,000

16,000

16,100

16,100

16,100

16,000

16,000

16,000

16,000

16,000

16,000

16,000

16,000

-

-

-

Mar.

16,300

16,600

16,800

16,900

17,000

17 , 000

17,000

17,000

17,000

17 , 300

17,400

17 , 600

17,700

17 , 900

18,200

18,300

18,600

19,000

19,300

19,800

20,100

20,600

21,200

21,600

21,800

22,000

22,200

23,000

23,600

24,100

24,200

Apr.

24,000

23,900

23,900

h24,000

h23,900

h23,900

h23,800

23,800

23,800

23,800

24,000

24,100

24,200

24,400

24,600

24,600

24,600

24,600

24,600

24,600

24,500

24,300

24,200

24,100

24,100

24,100

24,100

24,100

24,200

24,300

-

Hay

24,700

25,200

26,000

26,700

27,200

27,100

27,000

27,000

h27,100

h27,100

27 , 000

27,100

27,100

27,100

27,100

27,100

27,100

27 , 100

27,100

27,100

27,100

27,100

27,100

27 , 100

h27,100

h27,100

h27,100

h27,100

h27,000

h27,000

h27,100

June

h27,100

h27,100

27,100

27,100

27,000

27,000

27,100

27,100

27,100

27,100

27,100

27,100

27 , 100

27,100

27,100

27,100

27,100

27,100

27,200

27,100

27,100

27,100

27,100

27,100

27,000

26,900

26,700

26,100

25,400

24,600

-

July

23,700

23,000

22,300

21,800

21,200

20,600

19,900

19,100

18,400

17,600

16,800

16,100

15,400

14,600

13,800

13,100

12,400

11,700

11,100

10,500

9,660

9,180

8,870

8,500

8,230

7,950

7,680

7,330

6,990

6,710

6,370

Aug.

6,300

6,160

6,020

5,890

5,820

5,680

5,540

5,410

5,270

5,160

5,040

4,930

4,760

4,590

4,480

4,370

4,250

4,140

4,030

3,920

3,550

3,630

3,520

3,350

3,240

3,130

2,960

2,790

2,680

2,620

2,510

Sept.

2,350

2,210

2,110

2,010

1,960

1,870

1,770

1,720

1,720

. 1,670

1,670

1,620

1,580

1,580

1,530

1,480

1,430

1,430

1,380

1,380

1,330

1,330

1,290

1,290

1,240

1,190

1,190

1,140

1,090

1,090

h Computed from 7 a.m. staff-gage readings.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946...

Sept. 30... .............

Water year 1946-47-. . .

Elevation 

(feet)

4,637.3 

4,636.2 

4,645.8 

4,651.5

-

4,647.0 

,648.9 

,657.9 ' 

,658.0 

,661.0 

,658.3 

,636.6 

,630.1 

,627.2

-

Contents 

(acre-feet)

6,850 

6,090 

13,400 

18,300

-

14,400 

16,000 

24,200 

24,300 

27,100 

24,600 

6,370 

2,510 

1,090

-

Change in contents 

during month 

(acre-feet)

-760 

+7,310 

+4,900

-5,900

-3,900 

+1,600 

+8,200 

 1-100 

+2,800 

-2,500 

-18,230 

-3,860 

-1,420

-5,760
260 TUOLUMNE RIVER BASIN

Eleanor Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°58>, long. 119°53', in 

SWfsec. 3, T. IN., R. 19 E., in Yosemite National Park, 0.6 mile downstream from 

Lake-Eleanor Dam, 1.1 miles upstream from Miguel Creek, and 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 1947. June to October 1901 and November 

laua to November 1915 at site 1 mile upstream.

Average discharge.- 37 years (1910-47), 220 second-feet.

Extremes.- Maximum discharge during year, 775 second-feet (regulated) May 6 (gage height, 

4. 70 reet); minimum, 9.2 second-feet (regulated) Sept. 8.

1909-47: 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 excellent except those for period of no gage-height record, which are 

good. No diversion. Flow regulated by Lake Eleanor (see preceding page).

Rating table, vater year 1946-47 (gage height, In feet, 

and discharge, in second-feet)

1.5 7.2 2.2 40 3.5 242

1.6 9.7 2.4 57 3.8 333

1.7 13 2.6 79 4.1 450

1.9 21 2.9 119 4.4 585

2.0 26 3.2 173 4.7 735

Discharge, in second- feet, water year October 1946 to September 1947

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.

30

a9.4

a9.4

a9.4

a9.4

a9.4

a9.4

17

22

22

22

28

32

32

32

32

17

17

21

20

20

20

20

20

20

20

19

19

20

20

20

NOT.

20

20

24

26

26

26

27

27

27

27

27

27

27

49

70

69

68

68

36

17

27

27

22

11

11

11

11

12

12

16

-

Dec.

31

34

46

57

59

59

59

59

59

59

58

58

58

57

57

69

78

90

99

99

98

98

98

99

100

101

103

103

103

104

114

Jan.

128

129

129

129

128

126

126

126

126

126

124

122

121

119

119

119

121

121

121 i2j8

136

134

134

134

131

131

129

129

128

128

129

Feb.

131

129

131

131

133

133

133

134

136

134

134

138

138

138

138

138

138

136

136

136

136

136

136

136

136

134

134

134

..

_

-

Month

October. ...................................

November . ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April...... ................................

May........................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

134

134

134

136

138

140

140

141

141

145

143

143

138

136

136

136

136

136

136

138

138

138

140

140

141

141

58

24

52

267

363

Apr.

320

276

270

248

224

201

181

171

173

173

199

240

300

402

504

572

620

600

572

605

558

450

366

323

297

285

330

359

344

363

-

May

477

416

382

362

354

710

655

490

406

315

167

194

240

262

332

326

326

330

352

370

363

352

348

330

313

267

248

245

196

210

398

fKays » * 

618.4 32

868 70

2,366 114

78,459.4 1,090

3,931 136

3,777 138

4,363 363

10,526 620

10,736 710

4,740 468

9,676 454

1,736 58

672 . 56

54,009.4 710

.June

291

206

167

160

147

131

160

288

232

186

169

136

128

116

113

110

69

55

69

89

58

52

52

63

77

84

84

326

468

454

-

Minimum

9.4

11

31

9.4

119

129

24

171

167

52

134

52

14

9.4

July

454

378

348

326

320

320

378

426

418

418

414

410

406

402

398

394

386

363

355

352

348

244

160

156

160

162

162

160

162

162

134

AU6 .

5Z

52

53

53

55

57

56

58

57

57

57

57

57

58

58

57

57

57

56

55

55

56

56

56

57

56

56

57

56

56

56

Sept.

56

55

55

44

37

36

37

24

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

14

14

15

-

u<.»n Runoff in Hean acre-feet

19.9 1,230

28.9 1,720

76.3 4,690

215 155,600

127 7,800

135 7,490

141 8,650

351 20,880

346 21,290

158 9,400

312 19,190

56.0 3,440

22.4 1,330

148 107,100

a No gage-height record} discharge computed on basis of records of release from Lake Eleanor.
TUOLUMNE RIVER BASIN 861

South Pork Tuolumne River near Oakland Recreation Camp, Calif.

Location.- Water-stage recorder, lat. 37°49', long. 180°00', in, SE£ sec. 89, T. IS., R. 

18 IS., at Cliff House, 75 feet downstream from highway bridge on Big Oak Plat road, 

0,5 mile southwest of Oakland Recreation Camp, and 0.6 mile upstream from Middle 

Tuolumne River. Altitude of gage, about 8,800 feet (from topographic map).

Drainage area.- 87.6 square miles.

Records available.- March 1983 to September 1947.

Average discharge.- 84 years, 92.4 second-feet.

Extremes.- Maximum discharge during year, 1,750 second-feet Nov. 23 (gage height, 6.00 

reet); minimum, 6.0 second-feet Sept. 16, 17.

1983-47: 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. 83, 1934.

Remarks.- Records good. No storage or diversion.

Rating tables, water year 1946-47 (gage height, in feet, 

and discharge, In second-feet)

Oct. 1 to Nov. 23 Nov. 24 to Sept. 30

1.3 13 1.9 35 3.4 222 0.9 6.2 1.5 19 2.2 60 

1.4 16 2.0 42 3,7 300 1.0 7.5 1.6 23 2.5 91 

1.5 IS 2.2 57 4.O 40O 1.1 9.0 1.7 27 2.8 12S 

1.6 22 2.5 87 4.4 575 1.2 11 1.8 31 3.1 173 

1.7 25 2.8 123 4.8 80O 1.3 13 1.9 36 3.4 223 

1.8 30 3.1 167 1.4 16 2.O 42 3.7 300

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.

25 

22 

18 

18 

17

16 

16 

16 

16 

16

15 

15 

15 

15 

15

24 

20 

18 

17 

16

. 16 

16 

16 

16 

16

16 

16 

16 

16 

16 

16

Nov.

17 

17 

16 

16 

16

17 

17 

17 

17 

17

18 

18 

18 

19 

18

18 

18 

18 

249 

348

73 

46 

712 

159 

89

72 

62 

54 

49 

45

Dec.

42 

41 

40 

39 

124

178 

111 

84 

71 

64

61 

58 

53 

51 

49

47 

44 

42 

42 

41

40 

40 

40 

58 

139

99 

129 

93 

76 

66 

60

Jan.

63 

52 

48 

49 

52

50 

46 

45 

44 

44

43 

42 

42 

38 

34

b34

b35 

b35 

b36 

b36

b37 

1)37 

b37 

38 

38

39 

40 

39 

40 

40 

38

Feb.

40 

40 

41 

42 

42

43 

45 

46 

73 

83

64 

286 

229 

136 

109

104 

98 

91 

83 

79

75 

71 

69 

70 

71

72 

71 

67

Month

Ooto 

Move 

Deoe

Ca

Janu 

Febr 

tte.ro 

Apri

«ay.

June 

July 

Augu 

Sept

Da

mber... .................................

lender year J.946 

arv

1................ ......................

ember. .................................

ter year 1946-47 ......................

Mar.

68 

141 

98 

92 

87

81 

77 

82 

80 

161

134

110 

103 

99 

98

98 

98 

102 

98 

103

103 

110 

128 

105 

95

95 

104 

123 

119 

188 

135

Apr.

118 

114 

127 

119 

115

109 

103 

101 

103 

97

98 

105 

119 

141 

156

170 

179 

171 

178 

183

160 

139 

122 

127 

115

114 

128 

127 

119 

142

May

186 

202 

199 

186 

175

170 

150 

141 

125 

103

99 

91 

92 

91 

85

91 

92 

85 

80 

80

74 

68 

62 

57 

53

48 

62 

64 

58 

56 

87

Second- , foot-days "«iwiM

526 25 

2,270 712 

2,122 178

36,130 712

1,291 63 

2,340 286 

3,315 188 

3,899 183 

3,212 202 

1,035 70 

436 20 

257.0 9.8 

208.9 8.0

20,911.9 712

June

70 

58 

51 

47 

45

44 

50 

52 

44 

41

38

35 

33 

32 

30

29 

28 

27 

27 

25

25

- 24 

23 

23 

23

24 

24 

22 

21 

20

Minimum

15 

16 

39

12

34 

40 

68 

97 

48 

20 

10 

7.5 

6.2

6.2

July

20 

19 

18 

18 

18

17 

17 

17 

16 

16

16 

3,5 

15 

15 

14

14 

14 

13 

13 

12

12 

11 

11 

11 

11

11 

11 

11 

10- 

10 

10

Aug.

9.8 

9.8 

9.6 

9.5 

9.2

9.0 

8.4 

8.3 

8.1 

8.3

8.4 

8.3 

8.1 

8.3

8:1

8.0 

7.7 

7.6 

7.5 

7.5

7.5 

8.0 

8.1 

8.1 

7.7

7.6 

7.7 

8.0 

8.3 

8.4 

8.1

Sept.

7.6 

7.3 

7.1 

6.8 

6.8

6.7 

6.7 

7.1 

7.1 

7.3

7.3 

7.0 

6.6 

6.4 

6.4

6.2 

6.7 

aS.O 

a7.7 

a7.6

a7.5 

a7.4 

7.1 

6.8 

6.8

6.7 

6.7 

6.5 

6.5 

6.5

u ._ Runoff in 

Mean aore-feet

17.0 1,040 

75.7 4,500 

68.5 4,210

99.0 71,660

41.6 2,560 

83.6 4,640 

107 6,580 

130 7,730 

104 6,370 

34.5 2,050 

14.1 865 

8.29 510 

6.96 414

57.3 41,470

Peak discharge.- Nov. 2O (1 a.m.) 1.15O sec. -ft. i Nov. 23 (6 a.m.) 1,750 see. -ft.; Dec. 6

/izt3& a.m.) 25 . ... . . .

(4 a.m.) 238 sec.-ft.

a No gage-height record; discharge computed on badls of recorded range in stage and weather 

records.

b Stage-discharge relation affected by ice.

854211 O - 49 - 18
262 TUOLUMNE RIVER BASIN

Middle Tuolumne River at Oakland Recreation Camp, Calif.

Location.- Water-stage recorder, lat. 37°50', long. 120°00', in NW£ sec. 28, T. IS., R. 

ia E . 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). e> e> i ,

Drainage area.- 71.0 square miles.

Records available.- November 1916 to September 1947.

Average discharge.- 30 years (1917-47), 72.5 second-feet.

Extremes.- Maximum discharge during year, 478 second-feet Nov. 23 (gage height 4 63 

reet); minimum, 0.7 second-foot Aug. 22, 23.

1917-47:. Maximum discharge, 2,910 second-feet Dec. 11, 1937 (gage height, 10.4 

leet, irom 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,

Remarks.- Records good. Small diversion above station for irrigation.

Rating tables, water year 1946-47, except periods of Ice effect 

 (gage height, In feet, and discharge, In second-feet)

Oct. 1 to May 3 May 4 to Sept. 30

0.9 3.O 2.2 46 0.6

1.0 3.9 2.5 70 .7

1.2 6.6 2.8 104 .8

1.4 10 3.1 149 .9

0.5 1.0 4.6 1.4 12

1.2 1.1 6.2 1.5 15

2.1 1.2 7.8 1.7 22

3.2 1.3 9.8 1.9 30

1-f i6. |.5 223 Note.- Same as preceding table above 

1.9 30 3.9 307 1.9 feet.

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.

5.2

10

7.3

5.8

5.1

4.9

4.6

4.4

4.3

4.1

5.5

4.0

3.8

3.8

3.7

6.0

5.2

5.1

5.0

4.7

4.5

4.4

4.4

4.4

4.4

4.3

4.1

4*1

4.1

4.4

4.4

Nov.

4.4

4.5

4.5

4.1

4.1

4.6

4.9

5.0

5.1

4.6

5.2

5.7

5.8

6.2

6.0

5.6

5.8

6.2

75

132

26

21

270

78

41

35

29

26

23

20

-

Dec.

20

17

18

18

46

104

55

39

32

30

28

26

24

23

21

21

19

18

18 '19

19

18

18

23

57

47

76

42

34

30

28

Jan.

30

24

21

22

26

25

22

21

21

21

21

20

19

17

15

b!5

b!6

b!6

b!7

b!7

b!7

b!7

18

18

18

19

19

19

18

20

19

Feb.

20

21

22

22

23

25

26

26

33

38

32

135

131

71

55

50

48

42

38

38

36

36

34

34

36

37

37

35

_

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July.... ...................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

36

64

51

45

41

38

39

41

38

93

77

60

55

52

53

54

55

59

59

60

62

67

81

72

65

64

69

80

81

101

86

Apr.

Seoondfoot-days

150.0

868 . 3

988

31,882.5

608

1 181

1 ,898

3,424

5 281

l)l71

216 6

41.2

32.2

15,859.3

77

76

83

72

72

67

64

63

65

64

67

75

86

108

127

143

163

166

168

190

175

149

133

138

127

126

138

138

138

166

May

239

289

307

289

283

292

260

235

197

168

163

146

152

151

144

168

175

163

154

152

146

135

120

104

94

81

88

96

79

78

133

Maximum

10

270

104

552

30

135

101

190

307

99

15

2.1

2.6

307

June

99

77

66

60

56

55

68

7O

55

47

42

39

36

34

32

30

28

27

26

24

22

21

20

19

18

26

22

19

17

16

Minimum

3 7

4!l

17

2.6

15

20

36

63

7Q'O

16

2.0

 8

.8

.8

July

15

15

13

12

12

12

11

10

9.6

9.0-

8.6

8.2

7.8

7.5

7.1

6.2

5.9

5.4

4.9

4.3

3.9

3.5

3.2

3.2

3.O

2.8

2.7

2.8

2.8

2.0

2.2

Aug.

2.1

2.1

1.9

1.9

1.8

1.7

1.6

1.5

1.4

1.4

1.4

1.5

1.3

1.3

1.3

1.3

1.3

1.2

1.1

.9

1.4

.8

.9

1.0

1.0

l.O

.9

1.0

1.0

1.1

1.1

Sept.

2.6

1.3

1.0

1.0

.9

.8

.8

.9

.9

1.0

1.0

1.0

1.0

.9

.9

.9

.9

1.1

1.3

1.6

1.7

1.9

.9

.9

.9

.9

.8

.8

.8

.8

-

Mean Runof£ in 

acre-feet

4

28 9 1 720

3i!g 1)960

87.3 63,240

19.6 1,210

42.2 2,340

61.2 3,760

114 6,790

170 10,470

39.0 2,320

6.99 430

1 . 33 82

1.07 64

43.4 31,440

b Stage-discharge relation affected by Ice.
TOOLDMNE RIVER BASIN 263

Woods Creek near Jacksonville, Calif.

Location.- Water-stage recorder, lat. 37°51', long. 120°24', In SWij sec, 12, T. IS., R. 

14 E., 1.5 miles upstream from mouth and 1.5 miles northwest of Jacksonville. Altitude of gage, about 645 feet (from topographic map).

Drainage area.- 98.4 square miles.

Records available.- October 1925 to September 1947.

Average discharge.- 22 years, 61.7 second-feet.

Extremes.- Maximum discharge during year, 2,040 second-feet Mar. 10 (gage height, 6.40 

feet); no flow July 25 to Sept. 29.

1925-47: 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.

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

At times small amounts of water from Stanislaus River Basin are spilled into Woods 

Creek above station.

Rating table, water year 1946-47 (gage height, In feet,

and discharge. In second-feet) 

(Shifting-control method used Sept. 30)

-0 7 0.03 -0.2 5.8 0.7 56 2.5 330 

- 6 .2 -.1 8.6 1.0 86 3.0 450 

- 5 .8 .0 12 1.3 124 3.5 594 

- 4 1.8 .2 21 1.7 164 4.0 775 

- 3 3.6 .4 33 2.1 252 4.5 980

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.

3.6 

5.8 

6.1 

6.1 

6.4

6.4 

7.5 

7.2 

7.2 

6.7

6.4 

5.8 

6.1 

9.5 

13

29 

25 

20 

19 

19

18 

18 

18 

19 

20

21 

21 

22 

24 

23 

25

Nov.

23 

21 

20 

2C 

20

23 

23 

24 

23 

25

24 

26 

32 

38 

51

37 

28 

40 

227 

392

111 

53 

433 

100 

55

46 

40 

38 

36 

34

Dec.

32 

33 

32 

32 

43

173 

186 

76 

54 

48

46 

42 

40 

39 

37

36 

37 

36 

34 

34

34 

34 

33 

50 

248

263 

336 

130 

77 

65 

56

Jan.

52 

49 

46 

44 

44

43 

42 

40 

40 

39

39 

41 

44 

39 

35

28 

27 

27 

26 

24

22 

20 

18 

17 

15

14 

14 

35 

49 

41 

38

Feb.

35 

34 

32 

29 

27

25 

22 

20 

20 

40

50 

450 

300 

200 

150

110 

90 

75 

65 

55

45 

35 

30 

25 

22

20 

20 

20

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

Bber. ..................................

lendar year 1946 ......................

ary

h.. ....................................

1..... .................................

ember. .................................

ter year 1946-47 ......................

Mar.

20 

52 

42 

172 

77

46 

39 

44 

49 

937

242 

115 

73 

62 

52

46 

42 

38 

35 

40

48 

42 

39 

60 

50

45 

50 

60 

65 

150 

80

Apr.

50 

40 

35 

32 

30

30 

29 

28 

26 

25

24 

22 

20 

20 

20

19 

19 

18 

15 

15

14 

16 

17 

19 

17

14 

12 

12 

14 

13

May

12 

11 

10 

12 

10

11 

13

20 

19 

18

18 

20 

20 

16 

15

13 

8.9 

6.4 

5.6 

5.1

4.6 

4.6 

4.4 

3.4 

2.4

2.1 

4.7 

14 

12 

11 

11

June

12 

12 

12 

12 

9.5

10 

14 

12 

13 

12

10 

8.6 

7.5 

5.8 

3.0

1.6 

.8 

.9 

.9 

.4

.4 

.4 

.4 

.4 

.2

.4 

.4

.6 

1.3 

1.4

fcot^days Maximum Minimum

444.8 29 3.6 

2,113 483 20 

2,416 336 32

16,476 835 .3

1,052 52 14 

2,046 450 20 

2 , 917 937 20 

665 50 12 

338.2 20 2.1 

163.9 14 .2 

7.1 

000 

1.4 0 

.1 .1 0

12,163.1 937 0

July

1.4 

.7 

.4 

.2 

.5

.6 

.6 

.4 

.2 

.1

.1 

.1 

.1 a

.2

.1 

.2 

.2 

.2 

.1

.2 

.2

a 

a

0

0 

0 

0 

0 

0 

0

Aug. Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

a

 ___ Runoff in 

Mean acre-feet

14.3 882 

70.4 4,190 

77.9 4,790

45.1 32,680

33.9 2,090 

73.1 4,060 

94.1 5,790 

22.2 1,320 

10.9 671 

5.46 325 

.23 14 

0 0 

.003 .2

33.3 24,130

Peak discharge.- Nov. 20 4 a.m.) 795 sec. -ft. f Nov. 23 (7:SO a.m. 1,OOO sec.-ft.; Dec. 25

(9 p.m.) 815 sec.-ft.j Dec.'27 (9:30 a.mO ~588 sec.-ft.; Peb^ 12, l,666'seo.-ft^;"Mar. 16" (8:30 a.m.) 

2,040 sec.-ft.

Note.- Ho gage-height record Jan. 19-23, Jan. 31 to Feb. 24, Mar. 24 to Apr. 18j discharge computed on basis of recorded range In stage, weather records, and records for nearby streams.
264 TUOLUMNE RIVER BASIN

Modesto Canal near La Orange, Calif.

Location.- Water-stage recorder, lat. 37°40'04", long. 120°27'26", in SW£ sec. 17, T. 3 

b., K. 14 E., 0.5 mile northeast of La Orange and 1 mile downstream from intake at 

La Orange Dam. Datum of gage is 272.4 feet above mean sea level (levels by Modesto 

Irrigation District).

Records available.- April 1903 to September 1947. 

Average discharge.- 44 years, 368 second-feet.

Extremes.- Maximum daily discharge during year, 1,260 second-feet Apr. 21, 22; minimum 

daily, about 0.5 second-foot for several months.

1903-47: Maximum daily discharge, 1,820 second-feet July 1, 1935; no flow at times.

Remarks.- Records excellent except those for periods of low flow October to March, which 

are rair. Canal diverts from right bank of Tuolumne River at La Grange Dam for irrigation in Modesto and Waterford irrigation districts.

Cooperation.- Gage-height record furnished by Modesto Irrigation District, 

charge measurements furnished by Waterford Irrigation District.

Three disDischarge. 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.

429

423

428

424

424

421

426

424

432

421

431

434

434

429

423

307

406

511

399

390

397

402

399

396

402

399

392

400

120

a. 5

a. 5

Nov.

. aO.5

-

Dec.

 aO.5

Jan.

> aO.5

213

236

218

251

Feb.

208

98

226

238

229

219

238

168

95

177

182

188

176

195

147

36

160

136

134

119

31

19

13

19

22

20

17

17

_

_

-

Month

October ....................................

November . ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April.. ....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

18

25

25

14

a. 5

a. 5

10

20

24

23

22

22

21

21

19

15

16

18

21

22

22

18

18

17

22

23

22

163

228

226

228

Apr.

696

812

863

868

858

858

853

853

853

860

860

863

863

824

769

774

772

772

772

1,100

1,260

1,260

1,230

1,230

1,230

1,230

1,220

1,220

1,230

1,240

-

Secondfoot-days

11,724.0

15.0

15.5

207,841.5

.931.5

3,527

1,344.0

29 093

30 1 725

23,263

26,107

21,045

1,734

149,524.0

May

1,240

1,240

1,240

1,240

1,250

1,200

1,170

1,160

1,160

1,160

1,150

1,150

1,160

1,170

1,160

1,160

1,170

1,160

907

719

713

708

704

702

708

706

699

704

710

706

699

Maximum

511

-

1,420

236

238

228

1,260

1,250

856

870

841

62

1,260

June

702

706

706

706

708

708

706

699

706

708

704

706

710

710

706

820

851

851

856

848

848

848

846

846

844

841

844

844

844

841

-

Minimum

0.5

-

-

13

.5

696

699

699

834

277

42

-

July

844

848

851

846

846

844

841

844

844

844

841

841

839

836

870

841

839

836

836

836

836

836

834

839

839

839

841

844

844

844

844

Aug.

841

841

839

839

829

798

800

800

798

796

796

798

781

750

752

752

752

741

677

631

592

592

548

529

525

486

471

473

476

465

277

Mean

378

.5

.5

569

30.0

126

43.4

970

991

775

842

679

57 

' 8

410

Sept.

59

51

48

42

50

57

58

59

58

59

60

60

58

60

60

59

59

59

60

62

61

60

60

59

60

59

58

57

60

62

Runoff in 

acre-feet

23,250

30

31

412,200

1,850

7,000

2,670

57,710

60,940

46,140

51,780

41,740

3,440

296,600

a No gage-height record; discharge computed on basis of field estimates.
TUOLUMNE RIVER BASIN 265

Turlock Canal near La Grange, Calif.

Location.- Water-stage recorder and concrete control, lat. 37 0,40'00", long. 120°26'2S", 

near north line of NWij sec. 31, 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 1947. 

Average discharge.- 49 years, 517 second-feet.

Extremes.- Maximum daily discharge during year, 1,960 second-feet May 8, 9; minimum 

daily, 6.6 second-feet Feb. 23.

1898-1947: 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 except those for periods of no gage-height record, which are 

good. Canal diverts from left bank of Tuolumne River at La Grange Dam for irrigation 

in Turlock Irrigation District and to supply town of La Grange. During fall and 

winter some unmeasured flow is diverted from canal at tunnel 0.3 mile above gage, 

passed through La Grange power plant and returned to river.

Cooperation.- Gage-height record furnished by Turlock Irrigation District.

Discharge, in second-feet, water year October 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.

1,060

1.11O

1,130

1,090

1,O6O

790

938

711

354

365

390

359

234

354

381

324

173

32

42

35

42

40

39

39

37

33

25

37

38

47

50

Nov.

50

50

45

44

43

49

51

50

48

48

50

56

59

58

59

59

32

19

18

18

18

18

14

14

13

13

13

13

13

12

-

Dec.

12

12

12

11

11

13

12

12

11

12

12

12

11

12

13

12

12

11

78

323

622

655

853

827

616

775

762

733

541

814

775

Jan.

221

368

380

400

330

440

428

436

432

399

374

370

376

358

306

296

314

254

174

277

273

274

266

252

210

86

29

16

15

15

14

Feb.

14

13

13

13

13

13

13

13

12

11

11

11

11

12

11

11

11

11

11

11

49

14

6.6

19

22

12

9.4

8.8

-

-

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

May

September ..................................

Water year 1946-47 ......................

Mar.

15

38

144

157

155

112

151

55

49

172

76

71

58

52

15

9.4

8.8

22

50

83

91

24

16

40

72

84

72

307

619

518

694

Apr.

949

772

a990

al,310

1,32O

1,310

1,320

1,330

1,330

1,340

1,330

1,340

1,330

1,370

1,420

1,410

1,390

1,400

1,410

1,660

1,810

1,84O

1,860

1,860

1,860

1,89O

1,880

1,880

1,890

1,880

-

Secondfoot-day's

8,587

299,796.6

379.8

43,440

20,206.0

273,052.0

May

1,880

1,880

1,880

1.86O

1,880

1,9OO

1,940

1,960

1.96O

1,950

1,940

1,940

1,920

1,900

1,930

1,940

al , 95O

al,950

al,620

al,560

al,570

1,570

1,570

1,570

1.56O

1,550

1,220

908

973

a8 90

898

Maximum

853

1,880

49

1,280

1,960

June

1,000

1,100

1,130

1,120

1,11O

1.11O

1.O8O

1,050

1,O80

1,130

1.1OO

1,130

1,140

1,150

1,090

1,220

1,270

al,280

al,290

al,28O

1,290

1,300

1,310

1,340

1,350

1,390

1,380

1,380

1.38O

1,370

-

Minimum

11

6.6

14

6.6

772

1,190

7.0

6.6

July

1,390

1,380

1,4OO

1,380

1,380

1.37O

1,370

1,380

1,370

1.39O

1,390

1,390

1,370

1,400

1,190

al,410

1,420

1,410

1,420

1,390

1,370

1,410

1,390

1,42O

1,440

1,430

1,450

1,460

1,490

1,480

1,500

Aug.

1,510

1,500

1.5OO

1,370

1,370

1,410

1,380

1,370

1,350

1,260

1,340

1,350

1,370

1,380

1,380

1,350

1,310

1,380

1,380

1,380

1,250

1,310

1,310

1,270

1,370

1,430

1,420

1,420

1,420

1,380

1,350

Mean

34 9

277

821

270

13.6

130

1,489

1,678

1,401

1,373

674

748

Sept.

945

1,240

1,220

1,280

1,080

886

854

1,060

1,000

1,020

1,100

1,130

1,040

298

595

600

501

589

572

558

341

705

329

228

246

230

188

7.0

209

155

-

Runoff in 

acre-feet

22,530

17,030

594,600

16,630

753

7,990

88 , 620

1O3.2OO

86.16O

84,44O

40.O8O

541 , 6OO

a No gage-height record; discharge computed on basis of recorded range in stage and Information 

furnished by Turlook Irrigation District.
266 STANISLAUS RIVER BASIN

Middle Pork Stanislaus River at Kennedy Meadows, Calif.

Location.- Water-stage recorder, lat. 380 l-8', long. 119°45', 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 September 1947.

Extremes.- Maximum discharge during year, 644 second-feet (regulated) June 7 (gage height, 

b.U4 reet); minimum, 7.2 second-feet Nov. 3.

1938-47: Maximum discharge, 1,160 second-feet June 1, 1943 (gage height, 6.17 

feet); minimum, 5.5 second-feet in March 1944.

Remarks.- Records good except those for period of no gage-height record, which are fair, 

tfiow regulated by Relief Reservoir (capacity, 15,800 acre-feet). No diversion.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co.; obtainea in connection with a Federal Power Commission project.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

1.2 12 2.3 60

1.4 18 2.6 83

5.6 26 2.9 114

1.8 34 3.2 154

2.O 43 3.5 2O2

3.8 260

4.1 332

4.4 416

4.7 516

Discharge, in second- feet, water year October 1946 tc September 1947

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.

251

148

116

45

42

41

40

40

38

37

37

37

37

36

36

38

37

32

18

18

18

18

20

18

44

51

27

36

41

48

51

Nov.

16

15

13

17

16

16

16

16

b!6

b!6

b!6

b!6

b29

69

67

67

67

68

73

69

72

74

104

83

80

79

77

75

74

73

-

Dec.

73

72

72

71

81

77

73

71

70

69

69

69

68

69

68

67

67

66

66

66

66

66

65

66

67

66

66

64

64

63

63

Jan.

63

56

63

64

61

61

60

60

59

59

59

59

59

58

57

57

57

56

56

56

55

55

55

55

55

55

55

52

57

55

53

Feb.

53

53

53

53

53

53

54

54

53

53

52

61

59

56

55

54

53

52

51

51

50

41

23

24

26

27

27

26

,

_

-

Honth

October. .............................. ....

November . ..................................

December. ...................................

Calendar year ......................

January. ...................................

February. ..................................

Harch ......................................

April ......................................

May. .......................................

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1946-4,7 ......................

Mar.

26

28

25

24

23

22

21

21

20

22

21

21

22

24

27

31

35

39

44

48

51

55

54

46

42

43

45

47

44

46

42

Apr.

Seccndfcot-days

1,496

1,489

2,120

-

1,782

1,320

1,059

2,045

9,411

6,070

2,905

3,138

1,470

34,305

39

37

36

35

33

32

30

30

30

32

36

42

55

76

95

112

121

118

122

130

114'

91

79

74

68

67

69

66

76

100

-

May

156

209

234

224

216

224

204

202

240

230

207

204

248

273

322

353

253

271

429

462

3470

a500

a490

a470

a450

a410

a 350

a28O

a250

a 300

a280

Maximum

251

104

81

-

64

61

55

130

500

437

218

141

52

50O

June

a260

a250

a200

183

170

157

437

378

260

244

196

156

192

228

254

250

220

230

267

258

175

129

121

132

14O .

129

129

119

1O7

99

-

Minimum

18

13

63

-

52

23

2O

30

156

99

46

52

46

13

July

98

95

83

81

81

80

77

73

70

66

61

58

56

55

54

52

50

50

48

46

49

138

218

215

162

103

112

146

144

143

141

Aug.

122

88

97

141

140

137

136

120

83

104

133

132

130

130

129

127

126

125

124

124

122

93

54

53

53

53

53

53

52

52

52

Sept.

52

51

51

51

50

50

50

50

50

50

49

50

5O

49

49

49

49

50

49

49

49

49

48

48

47

47

46

46

46

46

-

UM_ Runoff in 

"ean acre-feet

48.3 2,970

49.6 2,950

6S.4 4,200

-

57.5 3,530

47.1 2,620

34.2 2,100

68.2 4,060

304 18,670

202- 12,040

93.7 5,760

101 6,220

49.0 2,920

94.0 68,O40

a No gage-height record; discharge computed on basis of records of release from Relief Reservoir 

and records for station at Sand Bar Plat, near Avery. 

b Stage-discharge relation affected by ice.
STANISLAUS RIVER BASIN 267

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. 4 N., R. 17 E.,

I mile upstream from diversion dam of Pacific Gas & Electric Co. at Sand Bar Flat, and

II miles southeast of Avery. Altitude of gage, about 2,650 feet (from topographic.map).

Drainage area.- 318 square miles.

Records available.- September 1905 to September 1947.

Average dlscharieT- 41 years (1905-8, 1909-47), 693 second-feet.

Extremes.- Maximum discharge during year, 2,980 second-feet May 2 (gage height, 9.15 feet); 

minimum, 59 second-feet Nov. 10.

1905-47: 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 excellent except those for period of no gage-height record, which are 

good. Flow regulated by Relief Reservoir (capacity, 15,800 acre-feet). Water diverted 

by Philadelphia Canal (see p. 274) from South Fork Stanislaus River through Spring Gap 

jpowerhouse 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.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

2.9 71 4.4 308 6.5 1,08O 

3.0 81 4.8 412 7.0 1,34O 

3.3 116 5.2 540 7.5 1.65O 

3.6 157 5.6 68O B.O 2.0OO 

4.0 223 6.0 84O 8.5 2,400

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.

514 

354 

285 

237 

169

162 

156 

154 

153 

149

149 

111 

106 

104 

105

112 

115 

112 

108 

96

104 

128 

136 

137 

133

154 

162 

142 

147 

151 

156

Nov.

160 

130 

120 

92 

80

76 

77 

78 

75 

71

75 

74 

77 

82 

120

121 

124 

122 

254 

422

183 

180 

911 

455 

303

265 

257 

235 

223 

216

Dec.

210 

207 

205 

200 

342

490 

353 

301 

276 

265

259 

253 

247 

243 

237

237 

229 

216 

219 

218

212 

212 

210 

223 

303

332 

330 

274 

259 

253 

227

Jan.

233 

209 

185 

2O7 

210

2O7 

196 

195 

195 

198

198 

195 

195 

219 

190

2O9 

203 

203 

203 

202

196 

186 

183 

186 

186

193

203 

223 

214 

221 

214

Feb.

216 

219 

214 

2O3 

203

210 

219 

229 

241 

272

259 

579 

709 

496 

424

401 

371 

345 

322 

318

303 

301 

292 

299 

313

332 

337 

310

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare

&

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1946 ......................

ary

h. .....................................

1. .....................................

St. ....................................

ember. .................................

ter year 1946-47 ......................

Mar.

306 

484 

404 

366 

332

315 

308 

310 

303 

464

458 

412 

412 

430 

461

509 

558 

614 

620 

666

676 

708 

792 

656 

606

a600 

3.670 

a750 

a740 

aSOO 

a720

Apr.

a6 80 

638 

631 

578 

558

550 

554 

558 

540 

530

610 

680 

816 

1,020 

1,200

1,310 

1,440 

1,380 

1,390 

1,520

1,390 

1,170 

1,000 

1,000 

912

916 

960 

890 

945 

1,170

Secondfoot-daya

4,991 

5,658 

8,042

256,095

6,257 

8,937 

16,450 

27,536 

46,262 

2O, 748 

7,315 

6,036 

3,849

162,081

May

1,560 

2.O60 

2,300 

2,240 

2,140

2,180 

1,970 

1,620 

1,35O 

1,250

1,120 

1,040 

1,070 

1,130 

1,200

1,390 

1,400 

1,320 

1,50O 

1,660

1,650 

1,76O 

1,680 

1,620 

1,560

1,440 

1,200 

975 

862 

1,020 

995

Maximum

514 

911 

490

3,210

233 

7O9 

800 

1,520 

2,300 

1,230 

342 

251 

142

2.3OO

Peak discharge.- Nov. 23 (10 a.m.) 1,450 sec. -ft. s Hay 2 (12 p.m.

June

844 

854 

820 

748 

712

' 659 

1,120 

1,230 

965 

890

844 

680 

712 

768 

796

816 

720 

720 

720 

78O

600 

49O 

436 

433

430

452 

427 

376 

348 

358

Minimum

9

7 

20(

7

18 

20 

30 

53 

86 

34 

13 

11 

8

r

July

342 

33O 

306 

255 

247

243 

274 

263 

253 

245

235 

185 

177 

185 

209

203 

198 

183 

142 

135

168 

178 

290 

337

335

212 

177 

237 

259 

257 

255

Aug.

251 

183 

151 

209 

245

241 

239 

235 

168 

143

216 

229 

227 

227 

225

223 

221 

219 

218 

218

216 

216 

178 

116

150

147 

146 

146 

146 

144 

143

Mean

5 161 

I 189 

3 259

I 702

5 202 

5 319 

5 531 

D 918 

I 1,492 

3 692 

5 236 

5 195 

3 128

L 444

) 2,980 sec. -ft.; June

Sept.

142 

140 

137 

136 

136

135 

135 

136 

137 

136

135 

133 

133 

132 

132

130 

130 

132 

128 

93

98 

133 

133 

136 

132

129 

89 

93 

129 

129

Runoff in 

acre-feet

9,900 

11,220 

15,950

508,000

12,410 

17,730 

32,630 

54,620 

91,760 

41,150 

14,510 

11,970 

7,630

321,500

7 (4 p.m.)

1,630 sec.-ft.

a Ho gage-height record; discharge computed on basis of records for North Pork Stanislaus River 

near Avery.
268 STANISLAUS RIVER BASIN

Melones Reservoir at Melones Dam, Calif.

Location.- Staff gage and reference point, lat. 37°57'15", long. 120°30'45", nea~r center 

or 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 1937 .to September 1947.

Extremes.- Maximum contents observed during year, 112,600 acre-feet on many days March 

to June (elevation, 735.0 feet); minimum observed, 6,300 acre-feet Oct. 18 (elevation, 

637.4 feet).

1927-47: 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 638.0 feet (minimum operating level) and 735.0 feet (top 

of drum-type spillway gates) above mean sea level; usable capacity for irrigation, 

110,000 acre-feet between elevations 610.0 feet (floor of outlet tunnel) and 735.0 feet 

above mean sea level. Figures given herein represent total contents at 5 p.m., of 

which 2,630 acre-feet is not available for release. Released water flows down Stanis-- 

laus River to Goodwin Dam, where it is diverted into Oakdale and South San Joaquin 

Canals for irrigation.

Cooperation.- Record of contents, furnished by. Pacific Gas & Electric Co., obtained in 

connection with a Federal Power Commission project.

Contents, in acre-feet, water year October 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.

a6,620

6,620

7,230

7,330

7,130

6,920

6,950

7,010

7,010

6,920

6,920

7,010

6,950

6,770

6,620

6,620

6,500

6,300

6,470

6,590

6,680

6,680

a6,800

6,950

7,100

7,290

7,490

7,650

a7 , 850

a8, 080

8,290

Nor.

8,500

8,680

S.970

9,070

9,220

9,300

9,380

9,490

9,570

9,530

9,490

9,450

9,410

9,410

9,380

9,530

9,570

9,600

9,690

12,300

14,200

14,400

14,700

21,000

22,900

23,300

23,400

23,500

24,200

24,000

-

Dec.

23,900

23,800

23,600

23,200

23,000

22,900

24,600

25,000

25,400

24,900

24,300

23,600

22,700

21,900

a21,100

20,300

19,600

18,500

17 , 600

16,600

15,600

15,400

15,300

15,200

15,300

15,600

16,900

18,200

19 , 300

19,400

19,800

Jan.

20,100

20,400

20,500

20,600

20,700

20,800

20,900

21,000

21,000

21,000

20,900

21,000

21,100

21 , 100

21,200

21,100

21,100

21,100

21,200

21,100

21,100

21,100

21,000

21,000

21,000

21,200

21,900

22,600

23,400

24,100

25,000

Feb.

25,800

26,500

27,300

28,000

28,700

29,500

30,200

31,000

32,000

33,000

34,200

35,300

40,200

44,200

47,000

49,200

51,200

53,000

54,400

55,700

57,200

58,700

59,900

61,100

62,300

63,500

64,900

66,400

_

_

-

Mar.

67,800

69,300

71,600

74,200

76,200

78,000

79,500

81,100

82,400

84,800

89,400

91,700

92,300

92,700

93,000

93,300

94,000

94,600

95,500

96,300

98,000

99,400

101,400

104,400

105,800

106,400

106,700

107 , 100

108,400

111,300

112,600

Apr.

112,600

112,600

112,600

112,600

112,600

112,400

111,900

111,300

110,800

110,000

109,500

109,300

109,800

110,800

112,200

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

-

Hay

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

111,900

111,900

June

112,200

112,200

112,200

112,200

111,900

111,300

110,800

112,600

112,600

112,400

112,200

111,700

111,100

110,800

110,400

110,000

110,000

109 , 500

108,900

108,400

107 , 800

107,100

106,000

104,900

103,600

102,600'

101,600

100,600

99,400

98,000

July

97,000

96,200

95,300

94,300

93,100

92,000

90,900

89,700

88,700

87,700

86,500

85,400

84,200

83,200

82,000

80,800

79,600

78,400

77,300

76,100

74,600

73,300

72,100

70,900

70,000

69,000

67,900

66 , 600

65,500

64,500

63,200

Aug.

62,200

 61,200

60,100

58,700

57,400

56,200

55,100

53,900

52,700

51,300

49,800

48,500

47 , 200

45,900

44,800

43,600

42,400

41,200

40,100

38,900

37,800

36,700

35,500

34,200

32,800

31,600

30,300

29,000

27,700

26,500

25,200

Sept.

24,100

22,900

21,700

20,500

19,200

17,900

16,500

14,800

13,100

11,300

9,760

8,500

7,780

7,450

7,360

7,290

7,290

7,260

7,200

7,100

7,010

6,980

7,070

7,100

7,040

7,100

7,170

7,200

7,010

7,070

a Mo gage-height record; contents computed on basis of weather records and outflow.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946...

Sept. 30.. ..............

Water year 1946-47 . . .

Elevation 

(feet)

-

630.0

-

Contents 

(acre-feet)

-

7,070

-

Change in contents 

during month 

(acre-feet).

+1,670

-70,900

0

-34,800

-18,100

+450
STANISLAUS RIVER BASIN 269

Stanislaus River below Melones powerhouse, Calif.

Location.- Water-stage recorder, lat. 37°56'50", long. 120C 31'45", near line between

sees. 10 and 15, T. 1 N., R. 13 E., 300 feet downstream from powerhouse, 0.5 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. 

Kecoras available.- January 1931 to September 1947. 

Average discharge.- 16 years, 1,524 second-feet. 

Extremes : - Maximum discharge during year, 4,940 second-feet May 4 (gage height, 8.99

reetj^ minimum, 8.5 second-feet (regulated) Out. 6, 7, 8, 9, 10.

1931-47: Maximum discharge, 22,800 second-feet Mdr. 31, 1940 (gage height, 17.6

feet); minimum, 0.4 second-foot (regulated) Jan. 19, 20, 1943. 

Remarks.- Records excellent above 300 second-feet, good below. Flow regulated by

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 Co.,

ootained in connection with a Federal Power Commission project.

Rating table, water year 1946-47 (gage height. In feet, 

and discharge, in second-feet)

Oct. 1 to May 3 May 4 to Sept. 30

3.6 14 4.6 340 7.0 2,470

3.7 24 5.0 574 8.O 3,630

3.9 60 5.4 866 9.0 4,950

4.1 116 5.8 1,220

4.3 193 6.4 1,820

4.1 129 5.5 945

4.3 201 6.0 1,390

4.5 287 7.0 2,450

4.8 449 8.0 3,630

5.1 645 9.0 4,950

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.

368

373

384

450

390

243

230

229

222

216

212

227

214

219

211

208

216

168

130

130

130

130

127

127

127

127

13O

123

128

138

140

Nov.

140

138

142

136

146

138

144

142

128

132

136

140

141

145

138

148

138

140

150

346

394

444

89

132

458

462

459

119

457

406

-

Dec.

415

450

457

456

461

456

529

414

841

836

833

840

842

848

746

812

816

822

800

803

444

388

392

386

383

394

385

356

350

351

348

Jan.

350

376

350

346

356

355

358

362

354

369

362

364

358

356

364

356

360

353

350

350

350

375

344

360

168

15

80

49

39

38

38

Feb.

38

18

49

41

70

41

43

43

21

43

43

44

44

43

42

22

60

52

90

75

41

41

22

42

41

42

42

43

-

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

Hay

Jnne .......................................

July.... ...................................

August .....................................

September. .................................

Water year 1946-47 . ......................

Mar.

43

27

86

94

85

46

130

86

30

146

583

1,020

1,000

1,010

1,030

1,040

1,020

1,030

1,030

614

879

524

288

662

972

1,050

1,120

1,060

326

948

1,800

Apr.

1,770

1

1

1

1

,710

,720

,730

,660

1,660

1

1

1

1

1

1

1

1

1

2

2

2

2

2

2

2

2

1

1

1

1

1

1

p

Secondfoot-days

6,467

6,428

17,654

556,568.9

9,005

1,236

19,779

59,020

83,720

36,?50

26,818

27, 106

13,815

307,298

,660

,660

,660

,660

,570

,460

,430

,560

,700

,480

,870

,810

,700

,780

,910

,520

,050

,990

,900

,700

,930

,890

,860

OJO

-

May

2,900

3,850

4,430

4,660

4,350

4,430

4,440

3,140

2,400

2,660

2,240

2,050

1,910

1,900

1,990

2,210

2,470

2,450

2,460

2,650

2,730

2,790

2,740

2,560

2,450

2,300

2,110

1,860

1,690

1,510

1,390

Maximum

450

462

848

7,380

376

90

1,800

2,910

4,660

1,610

881

929

1,000

4,660

Jnne

1,340

1,340

1,340

1,340

1,340

1,270

1,270

1,210

'1,610

1,460

1,320

1,240

1,210

1,160

1,160

1,160

1,160

1,160

1,160

1,160

1,150

1,150

1,120

1,070

al,070

al,070

al,070

al,070

al,070

al,000

-

Minimum

123

89

348

5.4

15

18

27

1,430

1,390

1,000

850

820

129

15

July

873

873

873

873

873

873

865

865

865

865

865

858

858

858

850

850

850

858

858

858

850

858

865

865

873

873

873

873

881

873

873

Aug.

873

889

897

897

889

897

913

913

921

929

929

921

397

373

873

865

365

365

358

858

858

(

I

365

J58

J58

850

842

(

f

(

(

342

J35

128

328

820

Mean

209

214

569

t, 1,525

290

44.1

638

1,9(57

2,701

1,208

865

874

460

842

Sept.

820

805

805

850

881

873

970

1,000

988

970

905

556

359

222

222

216

211

211

202

196

170

169

171

172

157

153

151

149

132

129

-

Runoff in 

acre-feet

12,830

12,750

35,020

1,104,000

17,860

2,450

39,230

117,100

166,100

71,900

53,190

53,760

27,400

609,600

a No gage-height record; 

records.

discharge computed on basis of recorded range In stage and powerhouse
270 STANISLAUS RIVER BASIN

Stanislaus River at Ripon, Calif.

Location.- Water-stage recorder, lat. 37°43'50" long. 1210 06'35", in SEi sec. 29, T. 2 

S., 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 1947 in reports of Geological Survey. 

April lyiu to December 194? in reports of Division of Water Resources, Department of 

Public Works, State of California.

Extremes.- Maximum discharge during year, 2,760 second-feet May 5 (gage height, 48.08 

reet); minimum, 132 second-feet Aug. 13.

1940-47: Maximum discharge, 19,700 second-feet Mar. 11, 1943 (gage height, 59.83 

feet); minimum, that of Aug. 13, 1947.

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. 

Many diversions above station for irrigation.

Cooperation.- Records collected and prepared in cooperation with Division of Water 

Kesources, Department of Public Works, State of California, and others. Thirteen 

discharge measurements furnished by Bureau of -Reclamation.

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

Oot.

180

186

202

198

204

194

192

198

200

198

172

170

172

166

176

200

202

188

176

172

176

166

172

196

196

176

184

190

210

264

286

Nov.

272

274

276

282

278

280

280

278

278

278

274

H80

292

296

296

290

288

388

296

316

482

511

547

625

419

427

570

588

503

425

-

Dec.

549

543

558

579

588

592

599

619

585

752

865

867

879

882

882

839

867

889

891

879

877

704

488

402

346

342

334

346

338

260

230

Jan.

214

208

202

202

196

190

190

190

184

182

178

178

202

190

178

186

184

306

226

182

170

164

160

160

162

156

152

154

168

212

200

Feb.

196

194

18B

178

178

190

206

188

188

190

182

180

214

328

268

232

214

198

196

200

220

218

200

184

176

168

174

176

_

-

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

April ......................................

Hay................... ......................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

176

178

194

280

234

184

160

154

156

156

208

334

612

696

718

789

796

768

877

1,060

937

915

754

638

729

1,030

1,090

1,200

1,240

768

906

Apr.

1,490

1,460

1,360

1,280

1,120

906

802

687

634

610

581

516

415

344

326

423

805

1,320

1,370

1,300

1,350

1,460

1,260

865

754

691

551

649

612

577

-

Secondfoot-days

19,372

416,922

4,834

156,821

May

597

1,090

1,840

2,450

2,680

2,600

2,600

2,670

1,890

1,280

1,240

1,050

898

780

715

756

858

1,080

1,150

1,150

1,280

1,370

1,450

1,450

1,330

1,200

1,090

966

812

685

601

Maximum

891

5,950

186

2,680

June

511

469

368

362

334

302

290

288

266

264

503

384

262

224

220

188

180

172

174

178

176

170

174

192

180

194

178

174

170

190

-

Minimum

23C

16

59

13(

13

July

164

156

158

174

166

166

180

162

162

150

152

164

162

162

146

140

136

152

158

148

172

158

156

160

150

154

166

164

154

150

148

Aug.

142

154

144

160

156

146

140

136

136

140

142

142

142

152

148

156

158

150

148

148

150

160

158

162

170

162

162

154

150

176

182

Mean

3 192

3 625

3 1,142

3 201

3 161

> 430

Sept.

174

154

160

164

160

156

160

168

172

186

174

180

168

168

162

166

162

164

162

160

156

152

156

154

152

152

154

150

138

150

-

Runoff in 

acre-feet

11,830

38,420

827,000

11,150

9,700

9,590

311,100
STANISLAUS RIVER BASIN 271

North Fork Stanislaus River near Avery, Calif.

Location.- Water-stage recorder, lat. 38° 14', long. 120°17', in sec. 35, T. 5 N., R. 15 

E., 700 feet upstream from intake of Utica 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 1947.

Average discharge.- 26 years (1914-22, 1929-47), 417 second-feet.

Extremes.- Maximum discharge during year, 2,320 second-feet May 3 (gage height, 6.20 

feet); minimum, 18 second-feet (regulated) Nov. 18.

1914-22, 1928-47: Maximum discharge, 17,700 second-feet Dec. 11, 1937 (gage 

height, 14.1 feet, from floodmarks), from rating curve extended above 3,400 secondfeet on basis of A >/d~ studies; minimum, 5.5 second-feet Dec. 6, 7, 1929.

Remarks.- Records good. Flow regulated by three reservoirs. 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.

Rating tables, water year 1946-47, except periods of ice effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Feb. 12 Feb. 12 to Sept. 3O

0.5 IS 2.4 ISO 0.9 36

.8 29 2.6 216 1.2 55

1.1 45 3.0 3O6 1.5 78

1.5 74 3.5 450 1.8 107

1.8 102 4.O 640 2.2 160

2.1 137 4.5 885

2 5

2 9

3 3

3 7

4 1

211 4.5 915

298 5.0 1,240

412 5.5 1,620

546 6.0 2,100

713

.

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

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

81

72

62

61

59

5S

57

57

56

56

55

54

54

54

53

63

60

56

54

53

51

46

41

30

58

58

57

57

58

58

58

Ncv.

58

57

56

56

51

39

38

38

3S

38

39

40

40

41

32

23

20

19

173

249

70

56

732

194

124

110

104

94

88

81

-

Dec.

78

72

70

67

344

303

154

123

105

' 95

90

86

83

80

77

77

72

65

70

67

68

68

67

77

192

195

190

158

140

127

111

Jan.

120

104

93

100

97

95

90

88

89

90

89

90

92

90

73

b88

b81

b80

b80

81

81

80

83

87

88

96

105

bl08

b!05

100

96

Feb.

100

104

110

118

120

126

137

147

159

178

160

793

682

428

349

319

284

254

239

235

221

215

225

256

279

301

311

270

-

_

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

Hay. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

261

521

391

327

284

265

256

256

252

. 418

376

344

358

385

438

49O

546

600

535

613

609

651

751

542

479

490

580

682

664

800

642

Apr.

1

596

507

503

447

450

438

425

441

457

454

588

700

 655

.030

1,110

1.170

1

1

1

1

,210

,090

,090

,210

1.130

1

Secondf cot-days

1,747

2,798

3,571

148,882

2,839

7,120

14,806

23,578

25,882

5,806

1,891

1,873

1,549

93,460

939

800

825

732

775

835

810

871

,090

May

1,460

1,81

1,92

1,77

0

0

0

1,650

1,560

1,40

1,13

86

0

0

0

741

659

60

60

60

0

9

9

651

704

72

69

65

7

5

5

677

655

53

57

52

4

6

1

490

444

38

34

30

30

8

4

1

1

341

Maximum

81

732

344

2,620

120

793

800

1,210

1,920

470

73

84

59

1,920

June

376

370

324

274

244

227

390

470

367

293

248

206

176

168

158

150

137

129

120

115

117

101

81

76

75

106

98

78

69

63

-

Minimum

3C

1=

6,

1=

7:

lot

25Z

42E

30]

6

4C

43-

1=

July

57

52

48

52

56

54

54

53

62

73

68

54

6*

64

62

61

61

60

59

58

57

56

64

72

71

69

68

68

64

60

59

Aug.

Mean

) 56.4

93.3

i 115

i 408

S 91.6

) 254

! 478

> 786

L 835

5 194

> 61.0

1 60.4

r 51.6

) 256

58

58

56

55

54

52

50

49

47

53

58

53

61

73

64

61

78

84

83

76

67

64

60

59

58

58

58

58

57

56

55

Sept.

54

54

56

59

59

59

58

59

59

56

56

56

55

55

54

54

54

55

55

56

57

56

48

37

38

38

38

38

38

38

Runoff in 

acre-feet

3,470

5,550

7,080

295,300

5,630

14,120

29,370

46,770

51,340

11,520

3,750

3,720

3,070

185,400

b Stage-discharge relation affected by Ice.
272 STANISLAUS RIVER BASIN

South Pork Stanislaus River at Strawberry, Calif.

Location.- Water-stage recorder, lat. 38°12 I , long. 120°01', in SW£ sec. 16, T. 4 N., R. 

IB E., 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).

Drainage area.- 45.5 square miles.

Records available - August 1938 to September 1947. October 1911 to January 1917 at site 

i mile downstream.

Extremes.- Maximum discharge during year, 858 second-feet May 5 {gage height, 4.85 feet); 

minimum, 1.3 second-feet (regulated) Nov. 22, 23.

1911-17, 1938-47: 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, that of Nov. 22, 23, 1946.

Remarks.- Records excellent. Flow regulated by Strawberry Reservoir (capacity, 17,900

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1946-47 (gage height. In feet, 

and discharge, la second-feet)

. 1.1 0.8 1.6 17 2.6 126 3.6 34S

1.2 1.8 1.8 32 2.8 160 3.8 410

1.3 4.0 2.0 51 3.0 200 4.0 478

1.4 7.0 2.2 74 3.2 244 4.4 634

1.5 11 2.4 99 3.4 294 4.8 830

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.

180

215

229

145

66

63

62

62

100

140

102

- 10

10

10

11

11

11

11

11

10

98

149

146

140

137

139

140

147

155

166

168

Nov.

158

146

109

11

5.5

4.3

3.3

3.1

3.1

3.1

2.9

2.9

2.9

2.7

2.7

2.5

2.9

3.8

13

5.5

1.8

1.3

1.4

3.3

8.2

7.8

7.4

7.0

7.0

6.4

-

Dec.

6.4

6.1

5.8

5.8

9.8

21

32

31

31

31

30

30

30

31

31

31

30

26

23

23

22

22

23

24

28

27

26

25

25

25

15

Jan.

4.9.

4.0

3.8

4.6

4.3

4.3

4.0

3.8

5.2

9.0

9.0

10

38

32

29

30

29

28

28

28

23

14

11

11

11

12

24

38

37

36

37

Feb.

37

37

22

12

12

12

13

13

22

37

37

34

25

21

20

19

18

14

10

11

10

10

11

13

14

15

15

13

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1946 .......................

January. .., ................................

February ...................................

March. .....................................

April ......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

13

16

14

13

12

12

12

12

11

14

13

13

16

19

23

26

30

41

51

51

51

46

50

45

48

53

63

54

35

39

51

Apr.

51

48

47

39

25

32

51

39

23

25

36

48

68

92

108

123

132

129

137

137

115

96

90

87

80

84

84

75

89

139

-

May

201

244

302

318

603

740

572

437

281

266

268

235

235

266

331

434

461

434

464

478

471

461

407

369

345

302

242

182

129

218

220

Second- Maximum 

foot-days ^^

3,044 229

726I9 32

48,143.7 836

562.9 38

527 37

947 63

2 329 139

10 ',916 740

2 905 446

1 334.8 59

2*025*2 94

l!963! 2 95

27,820.8 ' 740

June

188

188

168

132

119

96

446

220

149

129

115

89

85

82

76

69

59

54

49

45

36

30

27

26

30

53

44

19

27

55

-

Minimum

105 ' s'.i

i.:

3.1

10

11

23

129

19

9.C

9.4

9.4

1.2

July

55

54

35

15

15

40

58

58

58

55

41

13

12

36

59

59

59

36

9.0

13

59

59

59

58

53

9.8

21

59

59

59

59

Aug.

53

9.8

14

59

59

59

59

47

9.4

35

94

34

92

}2

91

91

Jl

Jl

Jl

91

91

i

91

50

9

62

62

f

(

(

(

>2

)2

52

1

61

Mean

98* 2

5 18.0

i 23.4

132

1 TQ g

18 8

30 '.5

77 6

352

96 8

43.1

: 65 *3

65.4

76.2

Sept.

61

61

61

61

61

79

95

95

95

95

95

95

94

94

94

85

56

56

37

9.8

31

61

61

61

60

44

9.4

32

62

62

-

Runoff in 

acre-feet

6,040

1,070

1,440

95,490

1,120

1,050

1,880

4,620

21,650

5,760

2,650

4,020

3,890

55,190
STANISLAUS RIVER BASIN 273

South Pork Stanislaus River near Long Barn, Calif.

Location.- Water-stage recorder and masonry control, lat. 38°05', long. 120°11', In sec. 

25, T. 3 N., R. 16 E., 600 feet downstream from Lyons Dam, 2 miles west of Long Barn, 

and.14 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 1947.

Extremes.- Maximum discharge during year, 1,400 second-feet (regulated) May 5 (gage 

height, 5.90 feet); minimum, 1.4 second-feet (regulated) Jan. 18-26.

1937-47: 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 fair. Storage and diversions above station for power and domestic 

use, Including Lyons Reservoir (capacity, 5,500 acre-feet) and Strawberry Reservoir 

(capacity, 17,900 acre-feet). Tuolumne Canal (see p. 275) 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., obtalned in connection with a Federal Power Commission project.

Rating tables, water year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Jan. 14-24)

Oct. 1 to May 5 Hay 6 to Sept. 30

0.1 1.0 1.2 58 2.9 298 O.O6 2.5 0.5 14

.2 3.0 1.4 77 3.2 354 .1 3.O .7 24

.4 9.0 1.7 109 3.5 414 .2 4.8 l.O 43

.6 18 2.0 148 4.0 540 .3 7.3

1*0 H \'l ru *' 5 7" Hote.- Same as preced1>0 *3 z ' 6 zt* Ing table above l.o foot.

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.

20

26

31

36

30

26

26

20

14

15

11

5.0

4.5

3.5

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.2

2.6

2.2

NCT.

1.8

1.8

28

45

46

89

23

3.0

2.6

2.4

2.4

2.2

2.2

2.2

2.2

2.2

2.0

2.0

2.2

1.8

2.0

2.2

3.P

2.4

2.0

2.0

2.0

2.0

2.0

2.0

-

Dec.

2.0

2.0

2.0

2.0

2.0

2.0

2.2

2.2

2.2

2.2

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.2

2.2

2.0

2.0

1.8

1.8

1.8

i.e

Jan.

1.8

1.8

1.8

1.8

1.8

1.8

2.0

2.0

2.2

2.2

2.0

2.0

2.0

2.0

1.6

1.6

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.6

1.8

2.2

2.4

2.4

2.4

Feb.

2.4

2.4

2.4

2.4

2.2

2.2

2.0

2.2

2.2

2.2

2.4

3.0

2.8

2.6

2.6

2.6

2.6

2.2

2.0

2.0

2.2

2.2

2.2

2.2

2.2

2.2

2.4

2.4

_

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July....... ................................

August. ....................................

September. .................................

Water year 1946-47 ......................

Mar.

2.4

2.4

2.2

2.4

2.8

2.6

2.4

2.4

2.4

2.8

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.6

2.2

2.2

2.2

Apr.

1.8

2.6

3.0

3.2

3.8

3.8

3.2

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.2

58

45

2.0

2.4

2.6

2.2

1.8

. 1.8

1.8

3.0

2.8

-

May

2.8

11

251

204

428

664

478

444

148

171

208

131

166

168

226

334

362

336

348

384

382

376

336

298

229

246

180

106

53

101

178

Second- u=»i«,,«i foot-days lte*lBUffl

303. O 36

285.6 89

62.4 2.2

30,262.5 760

56.0 2.4

65.4 3.0

69*4 2*8

181.0 58

7;949»8 664

1 225 8 321

119 2 44

logii. s'.i

101.2 3.5

10,527.9 6S4

June

110

109

96

42

38

24

321

220

97

33

35

18

6.3

6.8

6.8

5.0

4.2

4.1

4.8

3.9

3.5

3.1

4.2

3.9

4.2

.6

.4

.4

.4

.4

-

Minimum

2.<

1.

1.

1.

1.

2.

2.

1.

2.

3.

2.

3..'

1.

July

4.2

4.1

3.9

3.3

3.1

3.1

3.9

3.9

4.2

3.9

4.1

2.8

2.S

3.9

4.2

4.2

4.2

4.4

4.4

3.3

4.2

3.9

4.1

4.1

4.1

3.9

3.9

3.9.

3.9

3.9

3.7

Aug.

3.7.

5.7

5.7

5.5

3.5

3.5

5.5

5.5

5.5

3.5

3.5

5.5

S.5

5.5

3.5

3.5

S.5

S.5

S.5

3.5

3.5

5.5

5.5

5.5

3.5

a3.5

a:

a:

a

a.

5.5

5.5

5.5

5.5

a3.5

Mean

3 9.77

3 9.52

3 2.01

) 82.9

I T A ftl OJ.

3 2.34

3 2.24

3 6.03

3 256

L 40.9

5

-T flC JtO-J

3 3.52

L 3.37

1 28.8

Sept.

a3.5

3.3

3.5

3.5

3.5

3.3

3.3

3.3

3.3

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.3

3.3

3.3

3.3

3.1

3.1

3.3

3.3

3.3

3.3

3.3

3.3

5.3

Runoff in 

acre-feet

601

566

124

60,030

111

130

138

359

15,770

2,430

,236

216

201

20,880

a No gage-height record} discharge Interpolated.
274 STANISLAUS RIVER BASIN

Philadelphia Canal near Strawberry, Calif.

Location - Water-stage recorder and concrete control, lat. 38°11', long. 120°03', in 

sec. aO, 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).

Records available.- October 1939 to September 1947.

Extremes.- Maximum daily discharge during year, 61 second-feet May 5; minimum daily, 

i.b second-feet Nov. 9-22.

1939-47: 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 

River 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, furnished by Pacific Gas and Electric Co., 

obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1946 tc 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.

24

39

49

48

48

49

50

50

50

50

49

7.5

6.5

6.5

8.0

5.9

8.4

11

11

11

30

53

55

55

57

58

58

58

58

58

58

Nov.

58

58

57

17

4.2

Z.9

2.9

2.1

1.5

1.5

1.5

1.5

al.5

al.5

al.5

al.5

al.5

al.5

al.5

al.5

al.5

al.5

10

11

9.3

8.8

8.5

8.0

7.7

6.7

-

Dec.

6.7

6.5

6.5

6.2

9.9

19

35

34

33

33

33

33

33

33

33

32

32

29

25

24

24

24

24

27

33

32

32

29

29

28

23

Jan.

7.2

b6

b6

b6

5.8

5.6

5.8

5.3

5.3

10

10

11

38

37

b32

3<!

32

31

31

31

27

18

13

14

13

14

24

41

40

40

40

Feb.

40

40

28

15

16

16

16

17

24

42

42

47

33

27

25

24

23

19

14

14

14

13

14

16

17

 19

19

17

_

-

-

Month

October . ...................................

November . ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

Ifav

June .......................................

July...... .................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

17

22

19

17

17

16

16

16

16

26

22

21

23

26

29

S3

36

45

55

55

54

50

55

50

52

57

60

57

42

46

57

Apr.

56

55

53

47

31

36

58

49

29

29

41

51

59

60

60

60

59

59

59

59

58

57

58

59

58

59

59

58

59

60

-

Seccndf cot-days

1,179.8

293.1

801.8

17,212.7

632.0

651

1,107

1,595

1,809

1,516

1,326.8

1,589.1

1,586.4

14,087.0

May

60

60

58

5£

61

58

57

55

56

59

59

58

58

58

59

60

58

58

59

59

58

58

58

59

59

59

59

58

56

58

59

Maximum

58

58

35

61

41

47

60

60

61

60

59

59

60

61

June

58

59

59

57

58

58

60

54

58

58

59

57

58

58

58

58

58

56

52

58

38

33

29

26

30

55

50

20

27

57

-

Minimum

5.E

l.E

.6.E

l.E

13"5.2

16

29

55

20

9.3

9.1

8.2

1.5

July

57

56

42

14

14

23

58

57

57

57

48

13

12

37

59

59

58

41

9.6

9.3

58

58

58

58

57

9.9

15

58

58

58

58

Aug.

57

10

10

59

59

59

59

52

9.1

22

59

59

59

59

59

59

59

59

59

59

59

59

48

24

. 59

59

59

59

5S

59

59

Mean

38.1

9.77

25.9

47.2

HO. 4

23.2

35.7

53.2

58.4

50.5

42.8

51.3

52.9

38.6

Sept.

59

59

59

59

59

60

60

60

60

60

60

60

60

60

60

60

57

57

42

8.2

23

60

60

60

60

51

8.?

25

60

60

-

Runoff in 

acre-feet

2,340

581

1,590

34,140

1,250

1,290

2,200

3,160

3,590

3,010

2,630

3,150

3,150

27,940

a No gage-height record; discharge computed on basis of observer's notes, 

b Stage-discharge relation affected by ice.
STANISLAUS RIVER BASIN 275

Tuolumne Canal near Long Barn, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°05', long. 1200 11', In sec. 

2t>, T. 3 N. , R. 16 E., 200 feet downstream, from Intake, 250 feet downstream from Lyons 

Reservoir on South 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 1947. 

Average discharge.- 10 years, 21.8 second-feet.

Extremes.- Maximum daily discharge during year, 39 second-feet June 8; minimum daily, 5.4 

second-feet Feb. 18.

1937-47: Maximum daily discharge, 54 second-feet June 26, 27, July 1, 1938; no 

flow at times.

Remarks.- Records excellent. Canal diverts from left oank of South Fork Stanislaus 

Kiver for power and domestic supply in vicinity of Sonora.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtainea in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1946 tc 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

2829

30

31

Oct.

37

37

37

36

37

37

37

37

37

36

37

37

37

37

36

36

35

35

35

35

34

35

37

37

37

37

37

37

37

37

35

Nov.

34

33

35

36

36

37

35

36

36

36

36

36

36

35

35

35

34

34

34

34

34

33

33

34

34

34

34

34

34

33

Dec.

33

33

33

32

32

32

32

32

32

33

33

33

33

33

33

34

34

33

33

33

33

33

32

32

32

32

32

32

32

32

32

Jan.

32

32

33

33

33

33

32

33

33

33

33

33

32

27

20

20

21

21

21

20

20

14

10

10

10

10

17

26

26

25

25

Feb.

25

25

14

10

10

10

10

10

16

15

10

10

10

10

10

10

10

5.4

6.9

9.9

9.9

9.4

9.4

9.4

9.4

9.4

9.4

9.4

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

May. .......................................

August

September. .................................

Water year 1946-47 ......................

Mar.

9.4

9.4

18

13

11

11

11

18

22

14

11

11

11

11

11

11

11

11

22

30

24

15

20

30

30

29

29

24

15

19

28

Apr.

29

29

29

25

16

19

3D

21

15

15

15

15

15

15

15

15

15

15

15

16

25

31

31

30

25

16

21

25

16

15

Secondfcct-days

1,009

11,488

312 9

956

814

9,970.7

May

16

16

20

28

36

38

35

35

35

35

36

36

36

36

36

36

37

37

37

36

36

36

35

35

36

36

36

36

36

36

37

Maximum

34

53

 xa

 xa

29

39

June

37

36

36

36

36

35

37

39

37

37

37

35

24

22

22

21

20

20

21

22

23

23

24

24

24

24

24

24

24

24

-

Minimum

32

17

10

20

22

5.

July

24

24

26

27

27

27

28

29

30

30

30

31

32

32

32

32

32

32

32

32

33

34

34

- 34

34

34

34

33

33

33

33

Aug.

33

33

33

31

30

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

27

Mean

32.5

31.5

24.8

27.1

I 27.3

Sept.

27

27

27

27

27

27

27

27

27

28

29

29

29

29

29

29

29

29

29

28

28

28

28

26

26

26

25

23

22

22

-

Runoff in 

acre-feet

2,060

2,000

22,800

1,520

621

1,070

1,680

1,610

19,770
276 STANISLAUS RIVER BASIN

South San Joaquin Canal near Knights Ferry, Calif.

Location.- Water-stage recorder, lat. 37°51'20", long. 120°38'15", in sec. 15, T. 1 S., 

K. 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 1947.

Average discharge.- 28 years (1914-30, 1931-32, 1936-47), 368 second-feet.

Extremes.- Maximum dally discharge during year, 959 second-feet May 17; practically no 

now at various times.

1914-47: Maximum daily discharge, 1,070 second-feet July 1-3, 1921; no flow at 

times.

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

Canal 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 1946 to September 1947

Da^y

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

226

226

234

312

299

203

128

112

104

106

108

108

108

109

104

139

175

180

134

114

108

111

112

86

55

77

58

2.3

2.3

1.8

1.6

Nov.

1.2

1.0

.8

.8

1.2

2.3

2.3

3.2

4.1

2.6

3.2

3.8

1.2

2.6

3.8

3.2

3.2

2.6

2.6

2.0

1.2

2.0

2.9

2.6

2.6

2.0

} '

2.9

-

Dec.

2.6

2.3

2.0

1.8

1.8

1.8

1.8

1.6

1.6

2.0

> .5

38

208

304

331

345

357

386

383

374

370

358

Jan.

356

358

356

356

353

356

354

352

353

360

322

347

370

336

357

f261

f371

f358

f364

f361

f358

f362

f364

f358

342

3.5

3.5

2.0

1.8

1.8

1.8

Feb.

3.5

3.5

3.5

2.0

2.0

2.0

2.0

1.8

1.8

1.8

1.8

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.8

1.8

3.8

7.7

2.3

2.3

2.3

4.7

4.4

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March.. ....................................

April ......................................

Uav ay ........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

2.3

2.3

60

205

205

128

88

139

74

226

328

361

412

399

308

356

392

181

> .5

140

Apr.

242

241

336

469

654

762

783

812

812

864

924

926

928

941

934

929

917

918

929

941

942

938

941

938

942

893

935

936

941

941

Secondfoot-days

3,844.0

65.4

3,478.3

150,154.4

8,799.4

72.8

4,012.6

24,609

29,368

23,921

18,213

18,348

8,858

143,589.5

May

944

942

940

946

950

953

953

942

947

947

941

938

948

952

950

953

959

958

953

950

950

958

953

950

950

950

956

946

930

938

921

Maximum

312

4.1

386

966

371

7.7

412

942

959

948

606

633

755

959

June

892

846

878

900

893

851

856

823

906

948

868

814

804

774

770

770

770

770

770

770

769

767

749

717

710

713

713

711

711

688

-

Minimum

i.e

-

0

I.E

I.E

_

241

921

688

576

556

60

-

July

590

588

591

594

595

595

594

591

590

587

585

585

584

583

580

576

576

580

581

580

578

580

588

592

591

590

591

592

606

590

590

Aug.

591

592

601

608

604

608

618

625

630

633

633

633

620

597

588

587

583

581

578

576

576

577

578

576

571

571

570

569

559

556

559

Mean

124

2.18

112

411

384

2.60

129

820

947

797

588

592

295

393

Sept.

556

552

560

591

634

629

694

755

744

735

671

413

164

93

72

67

66

66

71

73

69

61

60

69

69

68

66

65

64

61

-

Runoff in 

acre-feet

7,620

130

6,900

297,800

17,450

144

7,960

48,810

58,250

47,450

36,120

36,390

17,570

284,800

Note.- No gage-height record Nov. 27-29, Dec. 11-20, Mar. 19-30; discharge estimated, 

f Computed on basis of partly estimated gage heights.
STANISLAUS RIVER BASIN 277

Oakdale Canal near Knights Perry, Calif.

Location.- Water-stage recarder, lat. 37°51'30", long. 120°38'00", in SE£ sec. 10, T. 1 

S., R. 12 E., 1,800 feet dovmstream from head gate at Goodwin Dam and 4 miles upstream from Knights Perry. Altitude of gage, about 350 fe^t (from topographic map).

Records available.- May 1914 to September 1947.

Average discharge.- 29 years (1914-32, 1936-47), 115 second-feet.

Extremes.- Maximum daily discharge during year, 410 second-feet May 26; no flow during 

most of period Oct. 17 to Mar. 29, although unmeasured flow up to 6 second-feet may 

have occurred occasionally.

1914-47: Maximum daily discharge, that of May 26, 1947; no flow during periods 

in each year.

Remarks.- Records good. Canal diverts water from left bank of Stanislaus River at 

~ i Goodwin Dam for irrigation in Oakdale irrigation district.

Cooperation.- Gage-height record and 14 discharge measurements furnished by Oakdale 

Irrigation District.

Discharge, in second-feet, water year October 1946 to September 1947

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.

125

126

131

140

113

107

76

88

99

98

92

92

94

90

89

45

0

0

0

o

0

0

0

0

0

0

o

0

0

0

o

Nov. Dec. Jan. Feb.

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

September ..................................

Water year 1946-47 ......................

Mar.

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

0

0

24

110

Apr.

164

25S

263

273

313

320

366

381

389

395

395

396

396

396

398

399

400

403

401

403

403

403

403

407

407

382

404

406

407

409

-

Secondfoot-days

1,605

0

0

62,234

O

0

134

11,140

12,614

10,399

7,396

7,925

4,611

55,824

May

407

406

404

407

406

407

407

406

404

407

407

406

406

406

406

409

408

407

408

407

406

407

407

406

409

410

409

407

408

407

407

Maximum

140

0

0

403

0

0

110

409

410

409

248

269

235

410

June

407

409

40S

407

403

383

385

369

372

20

393

396

379

359

361

360

360

359

359

354

347

339

328

308

307

308

308

308

307

298

-

Minimum

0

0

o

o

0

0

0

164

404

20

235

236

64

0

July

233

238

237

238

239

238

238

238

238

23S

238

238

237

236

235

236

236

237

236

236

235

236

341

241

240

241

242

243

248

241

243

Aug.

244

246

250

250

249

250

256

259

259

265

269

269

268

265

263

236

262

263

262

261

262

262

262

261

254

247

245

244

240

239

236

Mean

51.8

0

0

171

0

0

4.32

371

407

347

239

256

154

153

Sept.

235

231

218

213

224

219

221

224

222

218

220

222

220

147

127

127 .

121

123

123

120

114

102

95

83

82

78

74

72

72

64

Runoff in 

ao re-feet

3,180

0

0

123,400

0

0

266

22,100

25,020

20,630

14,670

15,720

9,150

110,700

854211 O- 49 - 19
278 CALAVERAS RIVER BASIN

Calaveras River at Jenny Lind, Calif.

Location.- Water-stage recorder, lat. 38°05', long. 120°52', in SWi sec. 22, T. 3 N., R.

10 E., at bridge on Milton road, 0.2 mile south of Jenny L3j^d 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 1947. 

Average discharge.- 38 years (1908-23, 1924-47), 251 second-feet, 

Extremes.- Maximum discharge during year, 1,950 second-feet Mar. 10-11 (gage height,

6.36 feet); no flow during several months.

1907-47: Maximum gage height observed, 21.0 feet (present datum) Jan. 31, 1911,

discharge uncertain; no flow during late summer of most years. 

Remarks.- Records good. Plow regulated by Hogan Reservoir at Stockton flood-control

dam, by small reservoir on North Pork Calaveras River, by diversion from North Pork

into Mokelume River Basin, and by diversion from North Pork Stanislaus River into

Calaveras River above station.

Rating tables, waterVear 1946-47 (gage height, in feet,

and discharge, In second-feet) 

(Backwater corrections applied May 4 to June 19)

Oct.11 to Nov. 23 Nov. 24 to Sept. 30

1.75 0 2.2 25 2.9 142 1.6 0 2.4 49 4.0 545 

1.8 1.0 2.3 34 3.1 204 1.7 1.0 2.5 64 4.5 760 

1.9 4.6 2.4 45 3.4 310 1.8 4.0 2.6 82 5.0 1,010 

2.0 10 2.6 72 3.7 425 1.9 8.0 2.8 126 5.5 1,300 

2.1 17 2.7 90 4.0 545 2.0 14 3.1 213 6.0 1,660 

2.2 28 3.4 312 

2.3 37 3.7 425

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.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

3.1

11

12

12 

11 

10 

9.5 

8.9

7.8 

7.8 

7.3 

7.3 

7.8 

7.8

Nov.

8.9 

8.9 

9.5 

' 10 

11

11 

12 

13 

14 

15

15 

15 

16 

16 

16

16 

17 

17 

25 

302

367 

157 

499 

718 

248

126 

86 

68 

56 

50

Dec.

47 

43 

43 

43 

44

52 

195 

216 

143 

98

78 

69 

62 

58 

54

49 

48 

45 

43 

43

43 

41

43 

47 

68

146 

229 

378 

242 

163 

126

Jan.

102 

86 

78 

73 

64

61 

60 

58 

54 

52

49 

49 

48 

49 

49

48 

44 

42 

42 

41

41 

41 

41 

41 

39

41 

41 

49 

77 

94 

82

Feb.

82 

90 

88 

82 

77

73 

69 

64 

64 

73

119 

526 

1,190 

556 

316

232 

189 

166 

143 

124

109 

100 

96 

94 

84

78 

75 

73

Month

Octo 

Hove 

Dece

Ca

Jann 

Febr 

Maro 

Apr! 

May

June 

July 

Augu 

Sept

Ha

her. ...................................

Bber. ..................................

Bber. ...................................

lendar year 1946 ......................

ary . . .

h. .....................................

1. .....................................

ember. .................................

ter year 1946-47 ......................

Mar.

68 

71 

102 

297 

465

292 

204 

168 

160 

994

1,580 

709 

409 

302 

242

201 

174 

151 

1.57 

124

116 

107 

104 

102 

98

90 

84 

88 

124 

137 

189

Apr.

171 

134 

129 

213 

213

177 

154 

134 

121 

119

112 

102 

92 

84 

78

71 

68 

62 

60 

60

55 

52 

52 

52 

49

48 

48 

47 

45 

45

Secondfoot-days

123.3 

2,943.3 

2,999

40,216.0

1,736 

5,032 

8,089 

2,847 

661.6 

309.5 

0 

0 

0

24,740.7

May

44 

41 

37 

35 

35

34 

32 

31 

29 

27

24 

24 

22 

22 

21

20 

19 

18 

15 

15

13 

12 

10 

10 

8.6

7.6 

7.2 

7.2 

11 

14 

16

Maximum

12 

718 

378

1,990

102 

1,190 

1,580 

213 

44 

23 

0 

0 

0

1,580

June

17 

18 

18 

19 

19

19 

21 

21 

22 

23

23 

20 

18 

15 

12

9.2 

7.6 

5.2 

2.5 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

0 

8.9 

41

0

39 

64 

68 

45 

7.2 

0 

0 

0 

0

0

July Aug. Sept.

 . Runoff in 

gean acre-feet

3.98 245 

98.1 5,840 

96.7 5,950

110 79,770

56.0 3,440 

180 9,980 

261 16,040 

94.9 5,650 

21.3 1,310 

10.3 614 

0 0 

0 0 

0 0

67.8 49,070

Peak discharge.- Nov. 20 (7 p.m.) 593 sec. -ft.; Nov. 23 (10 p.m.) 1,200 sec. -ft.; Dec. 28 (7 a.m.)

421 sec

1,950 sec.-ft.
CALAVERAS RIVER BASIN 279

Cosgrove Creek near Valley Springs, Calif.

Location.- Water-stage recorder, lat. 38°09', long. 120°50', in SE£ sec. 35, T. 4 N., 

R. 10 E., 0.4 mile upstream from mouth and 2.5 miles south of Valley Springs. Altitude of gage, about 580 feet (from topographic map).

Drainage area.- 20.6 square miles.

Records available.- October 1929 to September 1947.

Average discharge.- 18 years, 7.66 second-feet.

Extremes.- Maximum discharge during year, 567 second-feet Feb. 12 (gage height, 4.76 

feet); no flow for several months.

1929-47: Maximum discharge, 3,180 second-feet Dec. 21, 194fa (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 except those for period of no gage-height record, which are poor. 

No storage or diversion above station.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

1.93

2.0

E.I

2.2

2.3

.2

.8

1.9

3.6

2.4

2.5

2.6

2.7

2.8

6.3

10

16

22

30

3.0 

3.2 

3.4 

3.6

52

82

118

162

Discharge, in seccnd-fset. water year October 1946 tc September 1947

Day

2

3

4

5

6

7

8

10

11

12

13

14

16

17

18

19

20

21

22

23

24

25

26

28

29

31

Oct. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

al

a5

al

a2

alO

a2

al

0

0

0

0

0

-

Dec.

0

0

0

0

.2

.2

.2

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

8.3

4.7

22

6.3

3.4

2.6

2.0

Jan.

l.l

.9

.a

.8

.8

.7

.6

.5

.4

.4

.4

.5

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

-2

.2

.2

.2

1.8

5.9

2.6

1.9

Feb.

l.E

l.C

..£

.9

.8

.8

.8

.£

1.9

1.9

150

36

12

7.8

5.6

4.2

3.6

3.0

2.6

2.3

2.2

1.9

1.8

1.6

1.5

1.4

1.2

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

May................/........................

September. .................................

Water year 1946-47 ......................

Mar.

1.6

1.9

4.5

3.0

2.0

1.9

2.0

2.2

154

30

11

6.6

4.7

3.6

2.8

2.6

2.5

2.2

2.0

1.9

1.9

1.9

1.8

1.5

1.4

1.2

1.9

3.2

2.6

2.6

Apr.

1.5

1.5

1.6

1.4

1.1

.9

.9

.8

.8

.7

.6

.4

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

,Z

.2

.2

.2

.1

Seccndfoct-daye

0

22

52.4

854.7

25.4

264.2

17.7

.2

0

0

633.1

Hay

.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

Maximum

0

10

22

129

5.9

154

1.9

.1

0

0

0

154

June

Minimum

0

0

0

0

.2

.8

1.2

.1

0

0

0

0

0

0

July Aug.

Mean

0

.7

1.69

2.34

.82

8.97

8.52

.59

.01

0

0

0

0

1.73

Sept.

Runoff in 

acre-feet

0

44

104

1,700

50

498

524

35

.4

0

0

0

0

1,260

Peak discharge.- Feb. 12 (4 p.m.) 567 sec.-ft.5 Mar. 10 (12:30 p.m.) 327 sec.-ft. 

a No gage-height records discharge computed on basis of weather records and records for Calaveras 

River at Jenny Llnd.
280 CALAVERAS RIVER BASIN

Stockton diverting canal at Stockton, Calif.

Location.- Water-stage recorder, lat. 37°59', long. 121°17', in Campo de Los Franceses 

Brant, 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 1947.

Extremes.- Maximum discharge during year, 1,610 second-feet Mar. 11 (gage height, 3.84 

reet); no flow for several months.

1944-47: Maximum discharge, 7,820 second-feet Feb. 3, 1945 (gage height, 9.9 feet, 

from floodmarks); no flow for several months each year.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Uanal carries practically entire flow of Calaveras River (see p. 278 ), diverting from 

Mormon Slough at lat. 37°57'36", long. 121°12'06", and discharging into Calaveras 

River 0.2 mile below station. Mormon Slough diverts from Calaveras River at Bellota.

Cooperation.- Ten discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

-0.5 o

-.4 .5

-.3 1.0

-.2 3.0

-.1 7.0

.2 29

.3 41

.4 55

0.5 71

.6 90

.7 112

.9 165

1.1 228

1.5 380

2.0 6O5

3.0 1,120

4.0 1,720

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

10

11

13

IS

16

17

18

19

20

21

22

23

24

26

27

28

29

30

Oct. Nov.

0

0

0

o

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

 a 300

a!50

a 500

a800

368

157

86

57

40

29

-

Dec.

22

18

15

14

16

19

29

183

154

101

71

54

44

36

31

27

24

22

20

19

18

18

16

19

27

68

202

343

296

180

132

Jan.

103

82

68

60

55

47

41

37

35

31

28

27

25

24

25

25

24

22

19

18

17

17

18

17

16

15

16

20

24

48

65

Feb.

58

60

63

60

55

51

47

42

41

41

51

240

1,290

800

409

256

228

162

132

110

97

82

77

71

68

60

52

47

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April.. ....................................

May. .......................................

September . .................................

Water year 1946-47 ......................

Mar.

47

45

49

92

407

339

215

154

132

265

1,480

930

502

327

246

195

159

134

114

103

92

86

80

75

75

68

61

57

68

94

108

Apr.

148

117

99

108

180

159

130

117

97

86

82

77

68

60

51

44

37

34

28

24

28

18

13

13

17

16

14

14

11

8.2

Secondfcct-days

2,238

35,469.2

O

19,268.0

May

8.2

8.6

5.4

3.0

2.6

1.0

0

0

O

0

0

0

0

O

. 0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

Maximum

343

1,930

8

0

0

1,480

June

Minimum

14

0

0

0

July Aug.

Mean

72.2

97.2

219

0

52.8

Sept.

Runoff in 

acre feet

4,440

70,350

0

38,220

a No gage-height record; discharge computed on basis of recorded range In stage and records for 

Calaveras River at Jenny Llnd.
BEAR CREEK BASIN 281

Bear Creek near Lockeford, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°09'15", long. 121°08'15", 

in Nw£SE£ 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 1947. 

October 1926 to November 1930 at site 3 miles downstream.

Extremes.- Maximum discharge during year, 144 second-feet Feb. 12 (gage height, 4.40 

reetj; no flow for several months.

1930-33. 1943-47: 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 June, which are fair. No storage or diversion 

aDove station.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

2.3

2.4

2.5

2.6

2.7

.4 

1.5 

3.4 

6.3

2.8

2.9 

3.1

3.3

3.4

15

28

44

52

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. Nov.

O

0

0

o

0

o

0

o

0

0

0

0

0

o

o

o

0

0

.8

.4

0

.4

1.3

.1

O

0

O

o

o

o

-

Dec. Jan. Feb.

o

o

0

0

0

o

o

o

0

0.

0

38

39

7.0

3.0

1.6

.9

.6

.4

.2

.1

.1

.1

0

O

O

O

0

-

_

-

Month

October. ...................................

November ....................................

December ...................................

Calendar year 1946 ......................

January. ...'................................

February- ..................................

March. .....................................

April... ...................................

May. ........................................

June .......................................

July.......... .............................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

0

0

0

1.3

.6

.6

.4

.2

.2

46

29

7.7

3.4

2.0

1.3

.6

.4

.3

.2

.1

.1

.1

.1

O

0

O

O

0

O

.4

.4

Apr.

0.3

.2

.1

,1

.1

.1

.1

O

0

0

O

0

0

0

0

O

0

0

o

0

o

0

o

o

o

o

0

0

0

0

-

Seoondfoot-days

0

3.0

0

507.3

0

91. 0

95.4

l.O

0

3.0

3.5

0

O

196.9

May

Maximum

o

1.3

0

86

0

39

46

.3

0

.6

O

0

46

June

.

> ao.l

-

Minimum

0

O

o

0

o

o

0

o

0

o

o

o

0

0

July

0

0

0.1

.4

.4

.6

.1

0

0

0

0

0

0

o

.4

.3

.2

.3

.2

.1

.1

.1

.1

.1

O

0

O

O

0

0

0

Aug.

Mean

0

.10

0

1.39

0

3.25

3.08

.03

0

.1

.11

O

O

.54

Sept.

Runoff in 

acre-feet

0

6.O

0

1,010

O

180

189

2.0

0

6.0

6.9

0

0

390

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

July.
282 MOKELUMNE RIVER BASIN

Salt Springs Reservoir near West Point, Calif.

Location.- Staff gage, lat. 38°30', long. 120°12', in SE£ sec. 33, T. 8 N., R. 16 E., at 

Salt Springs Dam on North Fork 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 1947.

Extremes.- Maximum contents observed during year, 139,400 acre-feet June 7 (elevation, 

3,957.4 feet); minimum observed, 4,140 acre-feet Feb. 26 (elevation, 3,734.1 feet).

1931-47: Maximum contents observed, that of June 7, 1947; 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, increased in 1947 to 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 gates) 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. 288). 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.1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

05

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

60,700

59,800

59 , 100

58,200

57,300

56,400

55,600

54,700

53,800

52,600

51,500

51,000

49,700

48,600

47,500

47,000

46,200

45,500

44,900

44,400

43,900

43,300

42,500

41,400

40,900

40,600

40,700

40,000

39,200

38,400

37,500

Mov.

36,500

35,700

34,700

33,800

32,900

32,400

32,100

31,800

31,600

31,500

31,400

31,200

30,800

30,700

30,500

30,300

30,200

30,100

30,100

30,800

30,300

30,000

31,900

32,100

31,600

31,200

30,800

29,900

29,800

28,800

-

Dec.

28,100

27,500

26,800

26,100

25,600

25,700

25,200

24,900

24,400

23,900

23,400

22,700

21,900

21,200

20,400

19 , 600

18,800

18,000

17,100

16,300

16,200

16 , 100

15,500

15,400

15,400

15,800

16,000

16,000

16,000

15,600

15,400

Jan.

15,300

14,900

14,400

14,400

14,500

14,100

13,500

13,000

13,200

12,600

12,200

12,000

11,700

11,300

10,700

10,300

9 , 760

9,230

9,030

8,830

8,600

7,950

7,140

6,710

6,710

6,810

6,610

6,120

5,860

5,350

5,080

Feb.

5,020

5,060

5,020

4,970

4,840

4,730

4,730

4,820

4,970

5,060

5,060

5,600

6,660

7,190

7,580

8,000

8,110

7,760

7,O80

6,510

5,960

5,420

4,910

4,320

4,180

4,140

4,500

4,540

_

_

-

liar.

4,670

5,240

5,470

5,350

5 ,.540

5,510

5,380

5,240

5,470

5,960

5,960

6,560

6,730

7,060

7,550

8,220

8,830

9,460

10,000

10,600

11,200

12,200

13,500

14,200

14,900

15,100

15,700

16,500

17,500

18,400

19,000

Apr.

19,600

20,300

20,700

21,200

21,800

22,400

22,900

23,300

23,700

24,300

24,800

25,700

26,900

28,300

30,500

32,000

35,200

37,700

40,000

42,900

45,600

47,900

49,400

51,000

52,800

54,100

55,800

57,400

59,300

61,300

-

Hay

64,900

69,600

74,700

80,100

85,100

90,300

95,000

98,200

99,400

100,400

100,900

101,600

103,400

105,300

107,400

110,200

112,900

115,500

118,300

121,300

124,100

126,400

128,400

130,200

131,800

133,600

134,600

135,700

136,400

137,500

137,800

June

130,000

138,800

138,800

138,900

139,000

139,000

139,400

139,000

139,000

139,000

139,000

138,700

138,700

138,700

138,900

139,000

138,700

138,600

138,500

138,400

138,500

138,600

138,500

138,300

138,000

137,300

136,800

136,300

135, 7pO

135,000

-

July

134,200

133,500

132,200

131,600

130,900

130,400

130,200

129,200

128,300

127,900

127,700

127,800

128,200

128,400

128,300

128,200

128,100

128,000

127,900

127,800

127,600

127,300

126,300

125,700

124,300

123,600

122,800

122,300

121,000

120,200

118,700

Aug.

117,600

116,500

115,600

115,000

113,800

112,600

111,700

110,900

110,300

109,600

109,000

108,300

107,500

106,400

105,400

104,400

103,200

102,200

101,100

1OO, 100

98,900

97,800

96,800

96,100

95,300

94,200

93,200

92,100

90,900

89,900

89,300

Sept.

88,60O

87,700

86,600

85,500

84,500

83,400

83,000

81,900

80,800

79,700

78,600

,77,60O

76,500

05,400

74,500

73,300

72,200

71,700

71,100

70,500

70,100

69,600

68,800

68,000

67,100

66,400

65,600

64,900

64,300

63,500

-

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31.... ............

Calendar year 1946...

Sept. 30................

Water year 1946-47...

Elevation 

(feet)

3,862.8

3,773.7

_

3,738.5

3,900.5

3,865.9

-

Contents 

(acre-feet)

61,300

37,500

28,800

15,400

1

5,080

4,540

19,000

61,300

137,800

135,000

118,700

89,300

63,500

-

Change in contents 

during month 

(acre-feet)

_

-23,800

-8,700

-13,400

-1,200

-10,300

-540

+ 14,500

+42 , 300

+76,500

-2,800

-16,300

-29,400

-25.800

+2,200
MOKELUMNE RIVER BASIN 283

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.

it. E. , 0.3 mile downstream from Salt Springs Dam and 1.7 miles upstream from Cold

Creek. Altitude of gage, about 3,600 feet (from topographic map) 

Drainage area.- 160 square miles.

Kecoras available.- September 1926 to September 1947. 

average aiscnargeT- 20 years (1927-47), 436 second-feet (combined flow of North Pork

MOJceiumne Kiver and Tiger Creek powerhouse conduit). 

Extreme, s -- Maximum discharge during year, 900 second-feet (regulated) June 7 (gage height,

57?6reet); minimum, 1.3 second-feet (regulated) Oct. 30, Dec. 2.

1926-47: Maximum discharge, 8,740 second-feet Mar. 25, 1928 (gage height, 15.62

feet, present datum), from rating curve extended above 4,000 second-feet; minimum,

0.2 second-foot (regulated) Mar. 31, 1931. 

Remarks.- Records good except those below 20 second-feet, which are fair. Plow regulated

fy Salt Springs Reservoir (see preceding page). Diversion above station through Tiger

Creek powerhouse conduit (see p. 288). 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co.,

oDtainea in connection with a Federal Power Commission project.

Rating tables, water year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Mar. 10 to May 5)

Oct. 1 to May 7 May 8 to Sept. 30

1.2 1.0 1.8 12 3.3 170 1.7 5.3

1.3 1.6 2.0 19 3.7 260 1.8 9.8

1.4 2.5 2.3 36 4.1 374 2.0 19

1.5 3.8 2.6 61 4.5 506

1.6 5.8 2.9 98 Note.- Same as preceding table above 2.0

feet.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.2

3.2

3.2

3.2

2.9

2.4

2.3

2.1

2.0

2.0

2.0

2.0

1.9

1.9

1.8

1.7

1.7

1.6

1.6

1.6

1.7

1.8

1.7

1.7

1.7

1.6

1.6

11

27

2.7

1.5

Nov.

1.5

2.0

2.6

2.5

2.4

2.2

2.0

2.2

2.4

2.5

2.5

2.4

2.5

2.2

2.2

2.2

2.2

2.9

7.6

4.7

2.4

3.4

10

3.5

2.6

2.3

2.1

2.1

2.0

1.8

-

Dec.

1.7

1.5

1.6

2.0

3.2

3.8

3.5

3.2

2.9

2.6

2.5

2.5

3.4

5.4

5.6

5.8

6.6

6.8

7.1

7.6

7.6

8.4

9.3

10

10

10

11

9,3

5.6

2.8

2.6

Jan.

2.5

2.6

2.4

2.4

2.6

3.2

3.0

2.9

2.9

2.8

2.8

2.6

2.9

2.8

2.8

2.9

2.8

2.8

2.5

2.8

2.9

2.9

2.9

2.8

2.6

2.6

2.8

2.9

2.8

2.9

3.0

Feb.

3.0

3.0

3.0

3.0

3.0

3.0

3.0

2.9

3.0

3.3

3.4

6.3

5.6

4.8

3.3

2.5

4.0

4.0

3.8

3.8

3.5

3.4

3.4

3.4

3.0

2.9

2.8

2.5

_

_

-

Month

October ....................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July... ....................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

2.8

3.7

4.2

4.6

4.2

3.8

3.5

3.5

3.5

7.6

6.1

4.8

3.8

3.4

3.3

2.9

2.8

2.8

2.5

2.5

2.4

2.5

2.8

2.5

2.3

2.. 3

2.4

2.9

3.0

4.8

4.0

Apr.

3.7

3.4

3,8

3.4

2.6

2.2

2.9

3.3

3.0

2.8

2.8

2.9

2.9

3.3

3.4

3.5

3.4

3.5

3.7

4.0

4.2

4.4

4.6

4.6

4.0

3.7

3.7

4.0

4.4

6.1

-

May

8.1

8.4

10

11

12

18

16

221

327

197

197

75

8.8

8.8

8.8

8.8

9.1

9.4

10

10

34

92

19

11

12

13

14

13

13

14

58

ffoHays -a 

98.3 27

85.9 10

165.9 11

86,247.4 2,900

86.1 3.2

96.6 6.3

108.2 7.6

108.2 6.1

1,467.2 327

2,057 496

553.9 69

488.0 47

278.5 10

5,593.8 496

June

296

113

164

16

16

17

496

419

158

72

18

16

14

14

14

14

14

14

14

14

14

14

14

20

14

13

14

14

13

14

-

Minimum

1.5

1.5

1.5

1.3

2.4

2.5

2.3

2.2

8.1

13

9.1

7.0

8.4

1.5

July

14

13

12

12

12

12

12

12

12

12

12

11

11

11

11

11

69

15

11

11

11

23

10

28

23

9.4

9.1

36

56

43

9.4

Aug.

45

9

£

9

.1

.8

.1

38

47

40

e

7

.0

.0

7.0

13

44

7

8

.7

.4

8.4

8.0

e

36

35

.0

8.4

8.0

8

7

7

.0

.7

.4

8.8

9

9

8

8

8

8

Mean

3.17

2.86

5.35

236

2.78

3.45

3.49

3.61

47.3

68.6

17.9

15.7

9.28

15.3

.1

.1

.8

.4

.4

.4

Sept.

8.4

8.8

9.1

9.1

9.1

9.4

9.8

10

10

9.8

9.8

9.8

9.8

9.4

9.4

9.4

9.1

8.8

9.1

8.8

9.1

9.4

9.4

9.1

9.1

8.8

8.8

9.1

9.4

9.4

-

Runoff in 

acre-feet

195

170

329

171,100

171

192

215

215

2,910

4,080

1,100

968

552

11,100
284 MOKELUMNE RIVER BASIN

Mokelumne River near Mokelumne Hill, Calif.

Location^- Water-stage recorder, lat. 38°18'40", long. 120°43'10", in sec. 1, T. 5 IS., 

K. 11 ~E., at highway bridge, 1.2 miles northwest of Mokelumne Hill and 8 miles downstream from confluence of North and South Forks. Altitude of gage, about 650 feet 

(from topographic map).

Drainage area.- 538 square miles.

Hecordg available.- November 1927 to September 1947.

Average discharge?- 19 years (1928-47), 880 second-feet.

Extremes.- Maximum discharge during year, 1,960 second-feet (regulated) Nov. 23 (gage 

height, 5.06 feet); minimum, 39 second-feet (regulated) Nov. 14.

1927-47: Maximum discharge, 23,300 second-feet Mar. 25, 1928 (gage height, 16.10 

feet), from rating curve 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 (see p.282), 

several smaller reservoirs, and three power plants. Diversions above station for 

irrigation and domestic use.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

1.7 73 2.4 255

1.8 92 2.6 326

1.9 114 2.8 408

2.0 138 3.1 550

2.2 191 3.4 705

3.8 945

4.2 1,220

4.5 1,460

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.

570

500

495

540

471

462

476

490

505

545

550

545

448

545

550

615

580

555

555

404

434

580

580

585

595

439

150

357

605

625

661

Nov.

550

530

515

570

550

395

301

183

99

96

128

126

166

177

153

105

77

146

458

1,230

535

356

1,400

868

727

738

710

620

650

615

-

Dec.

560

600

560

555

560

850

722

570

466

575

560

570

625

605

555

635

630

640

615

656

394

107

274

224

310

506

448

481

387

457

585

Jan.

349

303

439

276

96

348

466

421

452

408

439

221

307

408

362

358

395

477

188

326

426

466

476

417

268

150

212

354

471

400

426

Feb.

332

203

221

253

278

334

276

262

212

283

366

766

1,310

575

457

395

515

700

754

738

732

678

678

694

565

293

457

452

_

-

Month

October . ...................................

November . ........................ ........

December. ..................................

Calendar year 1946 ......................

January .................................. .

February .......................; j ..........

March. .....................................

April ......................................

May. .......................................

June .......................................

July

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

334

379

462

700

590

545

560

610

297

1,200

1,150

958

784

754

672

605

640

666

661

620

620

510

560

466

434

421

535

625

625

778

790

Apr.

1

Secondfoot-days

16,012

13,774

16,282

332,437

11,105

13,769

19,551

20,969

23,068

15,273

15,286

14,903

14,455

194,447

727

766

772

732

727

530

600

688

705

650

615

615

595

650

796

796

850

838

844

040

850

615

683

605

600

443

678

656

620

683

-

May

1,020

1,280

1,240

1,210

1,180

1,140

1,040

766

1,120

1,250

1,130

1,070

600

510

550

570

610

486

444

550

476

565

694

555

408

434

417

430

379

374

570

Maximum

661

1,400

850

4,180

477

1,310

1,200

1,040

1,280

1,250

645

53.5

570

1,400

June

744

862

661

784

490

550

840

1,250

964

656

595

565

452

379

209

255

462

358

338

308

290

183

182

285

462

443

374

408

448

476

Minimum

150

77

107

77

96

203

297

443

374

182

326

272

297

77

July

500

600

570

426

358

334

326

585

515

565

560

545

370

457

515

590

575

580

412

404

417

550

540

555

535

412

342

383

520

645

600

Aug.

545 i

i

;

70

>05

58

510

585

4

2

80

14

38

272

312

2

4

c

01

12

35

535

555

4

E

E

34

65

80

595

555

E

5

3

55

05

15

462

486

5

5

5

5

45

60

40

25

354

Mean

517

459

525

911

358

492

631

699

744

509

493

481

482

533

Sept.

297

520

500

530

515

505

391

332

540

565

570

565

560

486

486

505

540

466

471

370

426

404

471

525

495

490

500

457

443

530

Runoff in 

acre-feet

31,760

27,320

32,290

659,400

22,030

27,310

38,780

41,590

45 750

30*290

30,320

29 560

28*670

385,700
MOKELUMNE RIVER BASIN 285

Mokelumne River at Lancha Plana, Calif.

Location.- Water-stage recorder, lat. 38°13'25", long. 120°53'20", in SWir sec. 4, T. 4 N.,

K - 10 E., 1 mile east of Lancha Plana, 3 miles downstream from Pardee Dam, and 5 miles'

upstream from Camanche Creek. Datum of gage is 158.95 feet above mean sea level

(levels by East Bay Municipal Utility District). 

Drainage area.- 584 square miles. 

Kecoras available.- June 1926 to September 1947. 

Average discharge?- 18 years (1929-47), since start of Eaat Bay aqueduct diversion, 827

second-reet. 

Extremes - Maximum discharge during year, 735 second-feet (regulated) Oct. 12 (gage

height, 3.40 feet); minimum, 45 second-feet (regulated) Mar. 9.

1926-47: Maximum discharge, 27,300 second-feet Mar. 25% 1928 (gage height, 19.65

feet), from rating- curve extended above 15,500 second-feet on basis of velocity-area

studies; minimum, 5.5 second-feet Nov. 21, 1929. 

Remarks - Records excellent. Flow regulated by Pardee Reservoir (capacity, 209,600 acreFeeTT, Salt Springs Reservoir (see p.282), several smaller reservoirs and four power

plants of several diversions above station, East Bay Municipal Utility District aque -

duct is largest not'returned to river.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

1.1 44 1.6 113

1.2 55 1.7 130

1.3 67 1.8 149

1.4 81 1.9 170

1.5 96 2.1 218

2.3 274

2.5 338

2.7 410

3.0 534

3.4 735

Discharge, in second- feet, water year October 1946 to September 1947

Day

1

2

3

4

3

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

499

518

502

506

357

226

480

457

416

420

444

406

200

472

483

437

458

434

352

360

485

472

465

442

452

428

312

412

470

452

400

Nov.

500

492

272

480

480

452

472

480

405

255

368

485

495

488

498

508

270

465

472

452

462

465

505

410

515

510 500'

288

4*8

390

-

Dec.

440

550

595

545

585

528

218

535

660

660

640

650

660

340

510

550

655

640

655

655

518

202

515

660

465

512

602

665

665

478

448

Jan.

405

550

655

660

595

590

675

643

602

560

534

266

523

565

610

686

686

617

357

523

686

686

686

577

380

356

536

527

615

686

564

Feb.

420

262

514

562

539

539

675

665

336

504

518

512

521

521

533

334

517

519

536

576

675

516

293

491

515

502

486

495

-

_

-

Month

October. ...................................

November ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May. .......................................

June. ......................................

July...... .................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

79

53

55

59

55

51

55

48

52

130

54

52

47

52

52

52

53

146

62

56

172

119

51

215

317

263

361

299 351'

427

422

Apr.

Secondfoot-days

13,247

13 t 282

17,001

288,446

17,601

14,076

4,260

13,553

13,254

8,938

13,263

13,308

13,404

155,187

65

52

52

72

106

104

104

106

434

665

665

665

670

670

670

670

670

670

670

670

670

670

670

539

504

423

231

508

458

430

-

May

489

502

476

184

428

460

469

455

416

448

189

472

482

451

478

491

335

265

493

468

439

458

453

442

354

474

524

490

467

313

389

Maximum

518

515

665

3,900

686

675

427

670

524

416

660

528

561

686

June

191

331

343

361

314

275

155

155

260

320

292

416

409

162

29Z

383

388

339

380

378

153

207

375

404

321

3Z2

320

194

162

338

-

Minimum

200

255

202

149

266

262

47

52

184

153

157

155

238

47

July

629

660

655

180

235

157

424

445

416

309

436

456

338

451

483

470

485

476

356

223

471

503

460

463

467

495

311

468

476

416

449

Aug.

528 i

2

4

18

71

87

467

467

4

4

c

71

92

13

190

487

4

4

i

72

49

82

444

337

]

4

4

55

66

74

471

514

E

4

3

18

21

08

488

484

4

4

4

4

57

20

28

27

302

Mean

427

443

548

790

568

503

137

452

428

298

428

429

447

425

Sept.

251

505

529

529

526

441

332

482

491

470

471

455

353

238

458

465

463

398

377

503

546

561

510

464

451

456

465

272

474

468

-

Runoff in 

acre-feet

26,280

26 340

33^720

572,100

34,910

27,920

8,450

26,880

26,290

17,730

26,310

26,400

26,590

307,800
286 MOKELUMNE RIVER BASIN

Mokelumne River near Clements, Calif.

Location.- Water-stage recorder, lat. 38°12'25", long. 121 0 05'20", in NW£ sec. 16, T.

4 N.. R. 8 E., 700 feet upstream from highway bridge, 1 mile north of Clements, and

3 miles downstream from Murphy Creek. Datum of gage is 67.16 feet above mean sea

level (levels by East Bay Municipal Utility District). 

Drainage area.- 630 square miles. 

Hecoras available.- October 1904 to September 1947. 

Average giscnarge.- 24 years (1904-28), 1,110 second-feet; 18 years (1929-47), 833

second-reet. ("Storage and diversion by East Bay Municipal Utility District began

Extremes - Maximum discharge during year, 851 second-feet (regulated) Feb. 12 (gage

height, 4.44 feet); minimum, 29 second-feet (regulated) Dec. 7.

1904-47: Maximum discharge, 25,600 second-feet Mar. 25, 1928 (gage height, 22.46

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 excellent March to September, good October to February. Concerning

regulation and diversions, see "Remarks" for Mokelumne River near Lancha Plana.

Rating tables, water year 1946-47 (gage height, in feet,

and discharge in second-feet) 

(Shifting-control method used Oct. 6 to Mar. 1)

Oct. 1 to Mar. 1 Mar. 2 to Sept. 30

2.5 252 3.3 495 1.4

2.7 306 3.6 602 1.6

3.0 396 3.9 712 1.8

2.0

50 2.3 175 3.6 524

72 2.6 238 3.9 622

97 3.0 343 4.1 692

125 3.3 430

Discharge, in second-feet, water year Ootober 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.

475

519

502

490

426

272

369

480

420

413

446

420

284

331

496

484

454

449

362

316

466

477

469

448

451

426

348

408

443

432

402

Nov.

470

481

335

407

480

432

436

426

434

258

314

449

468

482

472

495

324

421

518

425

428

480

472

410

483

498

480

320

382

392

-

Dec.

385

528

572

538

560

518

305

378

642

664

653

631

642

449

380

540

634

604

645

645

502

349

341

649

526

466

600

660

656

508

426

Jan.

410

500

645

656

593

564

653

627

588

536

575

261

473

549

594

664

664

631

368

457

660

664

668

560

438

305

499

524

599

671

558

Feb.

476

260

448

576

562

552

664

660

433

408

537

618

548

538

543

403

484

537

542

585

690

542

370

t55

542

534

522

545

_

_

-

Month

Ootober ....................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

Ua-a may ........................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

310

74

69

80

69

66

60

64

59

157

143

70

60

60

57

58

59

89

121

66

132

106

117

102

304

292

305

334

307

400

398

Apr.

Seoondfoot-days

13,178

12, 872

16,596

283,113

17 154

14^574

4,588

13,377

13,151

9,024

12 951

1 J.G, ^ 9*^9 £3£

13,090

153,807

268

71

65

60

97

110

108

111

238

639

646

646

653

653

653

653

653

656

656

656

656

660

667

532

510

461

258

418

491

432

-

May

434

492

459

331

315

426

465

461

438

416

285

360

497

438

451

490

410

306

379

482

440

440

462

444

372

431

524

488

461

422

332

Maximum

519

518

664

3,950

671

690

400

667

524

410

649

518

558

690

June

290

297

318

328

355

292

191

160

240

299

271

370

410

262

274

331

383

380

368

366

221

204

322

396

386

336

324

212

176

262

-

Minimum

272

258

305

250

261

260

57

60

285

160

196

234

254

57

July

570

642

649

346

196

206

284

435

432

404

338

443

393

398

448

462

462

458

399

274

346

496

462

447

434

474

397

362

453

427

414

Aug.

486

E

2

4

,02

64

01

446

469

4

4

E

59

79

10

320

352

4

4

4

92

56

42

405

410

2

3

5

34

14

O2

450

518

5

4

3

07

84

86

370

456

4

4

4

4

68

34

10

18

308

Mean

425

429

535

776

553

520

 tAO J.4O

446

424

 Z(\1 OUJ.

418

427

436

421

Sept.

340

354

502

512

514

502

392

366

504

449

461

460

391

254

387

457

458

446

410

380

558

531

503

464

442

437

460

284

432

440

Runoff in 

acre-feet

26,140

25 530 32)920

561,600

34,020

28 910

9)lOO

26,530

26 t 080

17,900

25,690

26, 280

25,960

305,100
MOKELUMNE RIVER BASIN 287

Mokelumne River at Woodbridge, Calif.

Location.- Water-stage recorder, lat. 38°09'30", long. 121°18''10", in NE£ sec. 34, T. 4 

N., R. 6 E., at Woodbridge, 0.4 mile downstream from dam and canal-intake of Woodbridge 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 1947 (for 1924 and 1925, low water records only]. 

Average discharge.- 18 years (1929-47), since start of diversion through East Bay Municipal utility District aqueduct, 671 second-feet.

Extremes - Maximum discharge during year, 1,520 second-feet (regulated) Nov. 25 (gage 

neignt, 12.32 feet); minimum, 9.9 second-feet (regulated) May 12, 13.

1924-47: 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 

second-foot (regulated) 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. 293).

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

!>

3

4

5

6

7

8

9

10

ai

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

165

218

278

285

272

169

72

207

250

207

200

218

207

81

172

252

232

230

226

167

153

250

269

250

236

238

223

142

209

254

264

Nov.

222

285

298

167

277

322

332

328

337

300

177

217

296

306

315

330

327

201

334

457

369

355

429

447

791

631

533

517

323

427

-

Dec.

405

449

539

573

555

561

537

238

509

631

637

621

627

623

355

465

563

599

605

627

593

507

241

509

597

451

527

603

631

589

479

Jan.

461

373

559

625

635

547

593

623

597

565

555

495

291

501

545

599

639

643

551

358

529

629

637

585

535

374

342

497

521

595

593

Feb.

534

417

295

500

526

536

574

633

609

350

472

518

578

514

524

494

355

502

490

512

572

581

496

305

452

470

464

462

_

-

-

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

May........................................

July

September ..................................

Water year 1946-47 ......................

Mar.

472

178

112

98

88

63

67

65

65

71

145

98

66

58

55

52

51

34

30

74

51

93

90

67

22

111

191

260

129

144

290

Apr.

261

87

34

20

18

IB

15

13

13

142

382

384

355

252

205

183

197

215

258

234

247

274

206

175

122

76

47

20

11

11

-

Secondfoot-days

6,596

10,650

16,446

212,839

16,592

13,735

3,390

4,475

754

394

663

1,744

4,146

79,585

May

10

12

37

114

20

10

10

10

11

14

30

11

10

12

12

13

24

16

13

14

14

15

15

16

18

18

45

94

64

32

20

Maximum

285

791

637

3,880

643

633

472

384

114

17

49

239

252

791

June

17

15

13

13

13

13

13

12

12

12

11

11

12

14

13

13

13

13

13

13

13

13

14

13

14

14

14

14

13

13

-

Minimum

72

167

238

24

291

295

22

11

10

11

13

23

34

10

July

13

19

28

49

21

18

16

14

16

16

16

15

16

17

17

19

22

24

26

22

21

21

24

26

24

23

26

25

23

23

23

Aug.

23

.24

34

29

26

28

28

30

34

131

31

26

28

29

30

30

30

26

26

28

29

138

239

99

62

37

97

107

81

81

103

Mean

213

355

531

583

535

491

109

149

24.3

13.1

21.4

56.3

138

218

Sept.

54

34

48

109

208

204

174

83

103

146

142

138

142

109

87

97

121

138

133

119

180

252

223

198

161

150

158

197

89

J.49

-

Runoff in 

acre-feet

13,080

21,120

32,620

422,200

32,910

27,240

6,720

1,500

781

1,320

3,460

8,220

157,900
283 MOKELUMNE RIVER BASIN

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°30', long. 120°13', in SW^- 

sec. 33, T. 8 N., R. 16 E., 1,000 feet downstream from Salt Springs Dam and powerhouse. 

Altitude of gage, about 3,700 feet (from topographic map).

Records available.- June 1931 to September 1947. 

Average discharge.- 16 years, 252 second-feet.

Extremes.- Maximum daily discharge during year, 554 second-feet Aug. 1; no flow at times. 

IU3~l-47: Maximum daily discharge, 577 second-feet June 22, 1945; no flow at times 

in each year.

Remarks.- Re'cords excellent except those for periods of no gage-height record, which are 

fair. Conduit conveys water of Nort.h Pork Mokelumne River from tailrace of Salt 

Springs powerhouse to forebay of Tiger Creek powerhouse, picking up water en route 

from Bear River and several small creeks.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtainea in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1946 to September 1947

Day

]

f,

7,

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

457

486

481

480

481

398

496

504

511

526

523

511

481

482

476

367

37 Z

368

365

223

382

398

398

398

332

.1

143

434

442

466

463

Nov.

458

452

446

442

391

242

173

145

48

50

50

157

171

113

136

50

50

144

181

214

251

207

230

333

430

433

433

428

424

4ZO

-

Dec.

416

410

403

402

381

365

392

292

388

385

384

45Z

486

486

478

481

476

487

493

394

70

208

245

73

53

103

105

148

180

311

266

Jan.

54

271

259

51

51

271

314

337

305

313

321

50

336

311

317

311

315

323

49

318

341

354

3Z8

265

48

49

275

284

300

294

275

Feb.

106

49

136

136

183

123

137

48

43

146

141

97

53

41

0

15

360

448

450

450

448

444

439

375

201

163

148

206

-

_

-

Month

December . ..................................

Calendar year 1946 ......................

March. .................................. .

April. .....................................

May

September. ..............................

Water year 1946-47 ......................

Mar.

2.5

8.7

210

202

2Z2

242

284

176

21

136

157

141

1Z4

117

4.0

4.2

166

140

152

137

140

0

0

110

78

98

 93

74

.1

.7

130

Apr.

130

92

81

80

0

0

94

88

74

70

68

0

0

63

78

41

.8

0

0

0

0

O

19

0

0

o

0

ao

all

al

Secondfoot-days

10,213

83,643.8

3 594 5

13,387

104,964.8

Hay

0.9

.9

.9

.9

a. 9

a3 3.0

58

324

450

448

196

59

47

11

1.5

2.1

2.3

2.3

2.8

42

145

180

198

139

19Z

149

1Z2

200

250

363

Maximum

493

529

354

450

284

450

476

553

554

553

554

June

295

325

398

371

446

422

398

372

368

427

468

400

296

264

100

327

317

261

252

253

114

.2

328

381

422

357

 352

394

429

476

Minimum

53

O

g

282

285

0

July

524

524

523

297

311

282

465

526

526

526

526

480

417

468

526

526

528

.445

420

386

471

526

526

526

495

422

339

457

548

553

553

Aug.

554

553

378

467

552

553

450

335

347

323

263

367

510

548

552

548

548

548

550

548

548

547

507

404

479

540

541

541

536

478

317

Mean

329

229

334

482

446

288

Sept.

412

485

548

548

548

458

311

547

552

553

553

552

552

493

521

548

425

333

318

285

291

327

420

420

421

432

388

304

391

451

-

Runoff in 

acre-feet

20,260

165,900

15 250

7 130

26,550

208,200

a No gage-height record; 

records.

discharge computed on basis of recorded range in stage and powerhouse
MOKELUMNE RIVER BASIN 289

Cold Creek near Mokeluunne Peak, Calif.

Location.- Water-stage recorder, lat. 38°31', long. 120°13', in sec. 28, T. 8 N., R. 16 

E., a.4 miles upstream from mouth and 6 miles southwest of Mokeluunne Peak. Altitude 

of gage, about 6,000 feet (from topographic map).

Drainage area.- 23 square miles.

Records available.- July 1927 to November 1942, October 1943 to September 1947.

Average discharge.- 19 years (1927-42, 1943-47), 58.0 second-feet.

Extremes.- Maximum discharge during year, 805 second-feet May 2 (gage height, 4.73 feet); 

minimum, 0.1 second-foot on many days in October, August, and September.

1927-47: 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/cTstudies; practically no flow Aug. 17 to Oct. 7, 1931.

Remarks.- Records good except those for Nov. 19 to Feb. 1, which are poor, 

or diversion above station.

No storage

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamed in connection with a Federal Power Comm^sion project.

Rating table, water year 1946-47, except periods of loe effect 

(gage height, In feet, and discharge, In second-feet)

.8

1.2 

3.0

l.O 

1.2 

1.4 

1.6

6.2

12

20

29

1.8 

2.0 

2.3 

2.6

41

56

85

122

2.9 177

3.2 242

3.6 344

4.0 476

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

'6

4

5

6

7

8

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2b

26

27

28

29

30

31

Oct.

0.9

.4

.4

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.3

.3

.3

.2

.2

.2

.2

.3

1.9

1.2

.8

.7

.5

.4

.4

.4

Nov.

0.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

20

18

13

15

80

30

15

13

12

12

15

18

-

Dec.

17

17

15

14

20

30

25

15

18

17

17

16

16

15

16

15

13

12

13

14

 15

14

13

20

50

40

35

25

20

17

17

Jan.

18

16

15

16

16

16

b!5

b!5

b!6

blS

bl7

b!5

13

12

11

11

11

11

12

13

13

 14

b!4

b!5

bl7

b!6

b!7

b20

b35

b32

b30

Feb.

b25

33

35

42

28

37

39

34

21

2O

18

b94

63

44

35

30

25

22

23

25

23

24

28

38

40

44

39

28

_

-

Month

December . ..................................

Calendar year 1946 ......................

March. .....................................

April ......................................

May. .......................................

July. ......................................

September . .................................

Water year 1946-47 ......................

Mar.

28

47

33

28

27

28

24

21

£0

32

41

33

34

46

61

80

93

97

90

98

96

109

115

65

57

67

85

81

66

62

60

Apr.

60

48

46

42

38

40

42

44

48

55

94

121

171

228

235

277

235

212

252

242

188

137

132

134

111

139

150

134

184

265

-

Secondfoot-days

601

23,186.0

24.3

4.3

14,579.7

May

393

436

412

380

37 O

349

241

190

152

132

125

129

138

150

178

193

176

170

173

163

155

132

107

90

74

58

59

48

46

50

60

Maximum

50

508

2.3

.2

436

June

93

54

42

33

33

34

110

66

45

34

27

23

20

19

16

14

12

11

9.5

8.4

6.4

5.4

4.7

4.4

4.4

4.0

3.7

3.3

2.9

2.6

Minimum

12

.1

18

2.6

.2

.1

.1

July

2.3

2.0

1.7

1.5

1.3

1.2

1.1

1.0

.9

.8

.8

..8

.8

.8

.7

.7

.7

.6

.5

.5

.4

.4

.4

.4

.4

.4

.3

.3

.2

.2

.2

Aug.

0.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Mean

19.4

63.5

16. S

34.2

58.8

137

178

24.9

.78

.12

.14

39.9

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

-.2

-

Runoff in 

acre feet

1,190

45,990

1,010

1,900

3,620

8,140

10,970

1,480

48

7.3

8.5

28,920

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Nov. 16 to Jan. 6, Jan. 13-22; discharge computed on basis of records 

for stations on nearby streams.
290 MOKELUMNE RIVER BASIN

Bear River at Pardoe Camp, Calif.

Location - Water-stage recorder, lat. 38°32', long. 120°15', in sec. 18, T. 8 N., R. 16 

K., at Pardoe 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 1947.

Average discharge.- 20 years, 99.2 second-feet.

Extremes.- Maximum discharge during year, 1,170 second-feet May 2 (gage height, 5.44 

rest); minimum, 1.1 second-feet Nov. 17, 18.

1927-47: 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, 1988, result of regulation.

Remarks.- Records good except those for period of ice effect, which are poor. About 

b.uou 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., obtamed in connection with a Federal Bower Commission project.

Rating table, water year 1946-47>except period of ice effect 

(gage height, In feet, and discharge, In second-feet)

O,5 O.9 1.2 17

.6 1.6 1.4 26

.7 2.6 1.6 38

.8 4.1 1.9 63

.9 6.2 2.2 1OO

1.0 9.1 2.6 163

3.0 244

3.4 344

3.8 46O

4.2 588

4.6 738

Discharge, in seoond-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

Oot.

8.4

6.5

6.7

6.5

6.5

6.7

6.7

6.7

6.7

6.7

6.5

6.5

6.5

6.2

15

130

128

125

124

120

120

117

111

108

107

103

100

96

92

88

84

NOV.

79

74

70

64

58

51

44

33

12

4.3

2.7

2.0

1.7

1.5

1.4

1.3

1.1

1.4

70

62

47

43

152

75

70

65

62

59

56

51

-

Deo.

48

44

40

34

65

65

53

47

42j

34

30

25

23

22

22

19

17

16

16

18

18

17

17

23

51

57

56

47

42

36

31

Jan.

27

24

22

21

22

21

5.5

4.3

3.9

3.9

3.9

3.8

b3.8

b3.5

b3.3

b3.2

b3.2

b3.2

b3.2

b3.1

b3.1

«b3.1

b3.1

b3.1

b3.2

b4.0

bS.O

b4.5

b4.5

b4.3

D4.3

Feb.

b4.5

b5

b5.5

b6

6.5

7.2

8.4

8.4

10

12

11

1O8

43

27

24

23

21

20

20

19

19

19

20

21

22

23

25

24

_

_

-

Month

October ....................................

November . ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March.. ....................................

April ......................................

May. .......................................

June ........................................

July .......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

32

52

37

33

31

31

30

30

31

65

47

43

42

44

46

49

52

58

63

68

71

79

92

110

172

167

163

190

180

206

172

Apr.

Seoondfoot-days

1,861.8

1,314.4

1,075

40,738.6

231.0

562.5

2,486

6,293

8,763

1,492

506

360

1,584.7

26,529.4

160

153

149

143

140

138

135

132

132

128

128

124

127

130

136

141

350

313

369

406

321

218

212

231

174

246

287

258

300

412

-

May

591

680

654

610

58O

560

434

347

273

216

22O

226

226

224

254

278

266

246

244

235

224

198

165

143

120

103

104

92

77

78

95

Maximum

130

152

65

731

27

108

206

412

680

186

19

13

128

680

June

186

108

78

59

54

57

178

136

95

59

44

35

30

27

25

24

23

23

23

23

23

22

21

21

20

20

20

20

19

19

-

Hinimun

6.2

1.1

16

1.]

3.]

4.E

30

124

77

19

13

10

9.4

1.1

July

19

19

19

18

18

18

17

17

17

18

18

18

18

17

16

16

17

16

15

16

16

16

15

15

14

14

14

14

14

14

13

Aug.

13

13

13

13

13

13

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

10

Sept.

11

10

10

10

10

10

10

10

9.7

9.7

9.4

9.4

9.4

9.4

10

' 9.7

39

128

127

122

119

116

111

108

104

99

95

91

86

82

-

 i-.-. Runoff in 116311 acre-feet

60.1 3,690

43.8 2,610

34.7 2,130

112 80,800

7.45 '458

20.1 1,120

80.2 4,930

21O 12,480

283 17,380

49.7 2,960

16.3 1,000

11.6 714

52.8 3,140

72.7 52,610

* Winter discharge measurement made on this day 

b Stage-discharge relation affected by ice.
MOKELUMNE RIVER BASIN 291

Middle Fork Mokelumne River at West Point, Calif.

Location.- Water-stage recorder, lat. 38°23'15", long. 120 0 31'40", in sec. 10, T. 6 N., R.

 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.

ttecoras available.- October 1926 to September 1947. October 1911 to October 1926 at site 

aoout 1,200 reet upstream.

Average discharge.- 35 years (1912-47), 55.0 second-feet.

Extremes.- Maximum discharge during year, 370 second-feet Nov. 23 (gage height, 3.17 

reet); minimum, 0.7 second-foot (regulated) Sept. 1.

1911-47: 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. Several small diversions above station. Storage in Calaveras

 Reservoir (capacity, 1,740 acre-feet), 6 miles above station, began in January 1940.

Hating tables, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Mar. 10

0.9

1.0

1.1

1.2

1.3

1.6 

1.9 

2.2 

2.5

136

198

Mar. 11 to Sept.30

0.7

.9

1.4 

2.9 

5.0 

1.0 8.4

1.1 13

Note.- Same as preceding table above 

1.1 feet.

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.

9.8

8.5

7.6

7.3

7.0

7.0

7.0

7.0

6.6

6.3

6.6

6.6

21

47

46

49

45

43

43

42

42

42

42

41

39

38

38

37

36

36

35

Nov.

33

32

31

27

25

17

10

1O

9.4

10

9.4

7.9

7.6

7.9

7.9

7.. 6

7.9

9.0

134

10O

44

46

188

67

51

46

39

36

34

32

-

Dec.

30

27

25

19

31

56

45

37

33

30

27

22

20

19

18

18

17

16

16

16

18

15

15

22

36

37

90

53

44

39

35

Jan.

33

31

27

24

22

22

20

2O

18

18

17

17

17

17

14

16

17

17

16

16

16

16

16

16

15

17

18

18

18

22

24

Feb.

23

23

23

24

24

24

24

24

28

41

36

152

114

75

65

61

58

55

51

5O

48

46

45

43

42

42

40

40

_

-

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April..... .................................

May. .......................................

June .......................................

July....... ................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

4,0

53

52

63

59

52

49

55

55

179

119

93

82

75

64

45

4,2

41

40

39

36

35

40

34

32

31

29

42

38

75

53

Apr.

45

46

69

59

73

76

73

71

74

68

62

58

55

52

49

48

47

45

43

42

41

39

36

36

36

34

32

31

3O

28

-

Secondfoot-days

849.3

1,086.6

926

20,050.0

595

1 321

1J742

1,498

582

284.6

146.4

83.1

92 " 4

9,206.4

May

27

27

27

27

25

24

24

24

24

22

20

20

18

16

17

16

16

IS

16

15

15

14

14

14

13

14

17

17

16

14

14

Maximum

49

188

9O

301

33

152

179

76

27

15

5.9 z'.e

5.3

188

June

15

14

13

12

12

13

16

15

14

12

11

9.6

9.2

8.4

8.4

8.4

7.9

7.5

7.5

7.5

7.1

6.8

6.5

6.2

6.2

6.2

6.2

6.2

6.2

5.6

-

Minimum

6.3

7.6

15

3.9

14

23

29

28

13

5.6

3.0

1.5

2.4

1.5

July

5.6

5.6

5.6

5.6

5.3

5.6

5.3

5.0

5.6

5.9

5.9

5.0

5.6

5.0

4.2

3.6

3.2

4.2

5.0

5.3

5.9

4.0

4.2

3.2

3.0

3.4

3.8

5.O

5.O

3.8

3.0

Aug.

2.9

3.0

3.2

3.6

2.9

2.9

2.9

2.7

2.4

2.5

2.2

2.2

2.7

2.7

2.7

3.0

3.2

2.9

2.5

2.0

2.5

2.0

2.0

1.5

2.5

2.7

2.7

2.7

2.4

3.4

3.6

Mean

27.4

36.2

29.9

54.9

19.2

47.2

56.2

49.9

18.8

9.49

4.72

2.68

3.08

25.2

Sept.

2.5

2.4

2.9

2.9

3.0

5.0

5.3

3.2

2.9

2.7

2.5

2.5

2.4

2.9

2.9

2.4

2.9

3.2

3.6

3.8

3.6

3.8

4.0

2.9

2.5

2.5

2.7

2.9

2.7

2.9

-

Runoff in 

acre-feet

1,68O

2,160

1,840

39,77O

1,180

2,620

3,460

2,970

1,150

564

290

165

183

18,260

Peak discharge.- Nov. 19 (7:30 p.m.) 296 sec.-ft.; Nov. 23 (6 a.m.) 370 sec.-ft.; Dec. 27 (10 a.m.) 

140 sec.-ft. ; Feb. 12 (6 p.m.) 350 sec.-ft.; Mar. 10 (l p.m.) 232 sec.-ft.; Mar. 3O (7 a.m.) 1O3 

sec.-ft.
292 MOKELUMNE RIVER BASIN

South Fork Mokelumne River near West Point, Calif.

Location.- Water-stage recorder, lat. 38°22', long. 120°33', in SW£ sec. 16 T. 6 N., R. 

13 fi., 600 feet downstream from Sawyer Bridge, 2 miles upstream from Middle Fork, 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 1947.

Average discharge.- 14 years, 82.4 second-feet.

Extremes.- Maximum discharge during year, 500 second-feet Nov. 23 (gage height, 6.18 

reet); minimum, 2.7 second-feet Sept. 7.

1933-47: 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 Aug. 6, 7 Aug. 

12 to Sept. 26, 1934.

Remarks.- Records good. Small diversions above station.

Rating table, water year 1946-47 (gage height, in feet, and discharge,

in second-feet) 

(Backwater corrections applied June 16 to Sept. 30)

3.4 3.0 3.9 21 4.8 116 

3.5 5.2 4.0 27 5.1 161 

3.6 8.3 4.1 34 5.4 226 

3.7 12 4.3 53 5.7 310 

3.8 16 4.5 76 5.8 34O

Discharge, in second- fast, water year Ootober 1946 to September 1947

Day

1 

Z 

S 

4

5

6 

7 

8 

9 

10

 11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oot.

16 

20 

17 

16 

15

14 

14 

14 

13 

13

12 

12 

12 

11 

12

22 

18 

16 

16 

15

15 

15 

16 

16 

15

15 

15 

15 

15 

15 

15

Nov.

15 

15 

15 

15 

15

14 

14 

13 

13 

14

14 

18 

18 

18 

18

18 

18 

20 

188

167

56 

54 

296 

95 

61

48 

41 

38 

34 

32

Dec.

31 

28 

27 

25 

46

88 

64 

50 

43 

38

38 

35 

33 

32 

31

31 

30 

29 

27 

27

27 

26 

26 

34 

64

58 

100 

71 

58 

51 

46

Jan.

44 

40 

37 

36 

36

33 

34 

33 

31 

30

30 

29 

31 

29 

25

27 

28 

28 

27 

27

27 

27 

25 

25 

25

27 

29 

33 

32 

34 

36

Feb.

34 

34 

34 

34 

36

36 

37 

37 

44 

65

56 

217 

186 

119 

97

85 

77 

71 

74 

62

56 

55 

52 

51 

48

47 

46 

46

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Bay.

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 19*6 

ary

h. .....................................

1. .....................................

ember ..................................

ter year 1946-47 ......................

Mar.

48 

84 

79 

102 

89

79 

74 

79 

81 

320

250 

172 

145 

130 

117

110 

103 

97 

93 

89

81 

76 

82 

71 

69

66 

61 

88 

85 

147 120-

Apr.

99 

102 

126 

113 

108

103 

101 

99 

102 

96

90 

84 

79 

75 

71

68 

63 

61 

58 

56

55 

53 

51 

49 

47

45 

44 

43 

41 

39

Seoondfoot-days

465 

1,395 

1,314

23,223.1

955 

1,636 

3,287 

2,221 

844 

588 

295.4 

227.2 

155.2

13,582.8

May

37 

36 

32 

32 

31

30 

30 

33 

32 

30

31 

29 

28 

27 

28

25 

25 

25 

23 

23

22 

22 

23 

23 

20

20 

25 

28 

26 

24 

24

Maximum

22 

296 

100

337

44 

217

320 

126 

37 

28 

12 

9.1 

6.4

320

June

25 

25 

25 

25 

23

24 

28 

28 

26 

24

22 

22 

20 

20 

18

16 

18 

16 

16 

15

16 

18 

16 

16 

15

15 

15 

15 

14 

12

Minimum

11 

13 

25

8.3

25 

34 

48 

39 

20 

12 

5.2 

6.4 

3.7

3.7

July

12 

12 

12 

11 

12

12 

12 

12 

11 

10

10 

10 

9.8 

9.1 

10

10 

10 

8.8 

8.8 

8.3

7.3 

9.1 

9.1 

8.6 

8.6

8.6 

8.0 

6.4 

5.2 

6.7 

7.0

Aue.

7.3 

8.0 

8.6 

8.3 

8.6

8.8 

9.1 

8.6 

6.4 

6.4

6.7 

6.4 

6.4 

6.7 

7.0

7.0 

7.6 

8.0 

7.0 

7.6

6.7 

6.7 

6.7 

7.3 

7.0

7.3 

7.3 

7.3 

7.3 

6.7 

6.4

Sept.

6.4 

6.1 

5.8 

5.8 

5.5

4.1 

3.7 

5.5 

6.1 

5.5

5.2 

4.6 

4.6 

4.8 

4.8

4.8 

5.5 

6.4 

6.4 

5.8

5.8 

5.2 

4.8 

4.6 

4.6

4.6 

4.6 

4.4 

4.6 

4.6

Moan Runoff in ean aore-feet

15.0 922 

46.5 2,770 

42.4 2,610

63.6 46,070

30.8 1,890 

65.6 3,640 

106 6,520 

74.0 4,410 

27.2 1,670 

19.6 1,170 

9.53 586 

7.33 451 

5.17 . 308

37.2 26,950

Peak discharge.- Nov. 19 (9:30 p.B.) 395 seo.-ft.; Nov. 23 (6s30 a.m.) 500 sec. -ft.; Feb. 12

(4:30 p.m.) 428 sec.-ft.; Mar. 10 (l2 BL) 391 Bee. -ft. ; Mar. 30 (7 a.m.) 170 sec.-ft
MOKELUMNE RIVER BASIN 293

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 1947.

Average discharge.- 21 years, 118 second-feet.

Extremes.- Maximum daily discharge during year, 454 second-feet July 4; no flow Nov. 26

1926-47: Maximum daily discharge, that of July 4, 1947; no flow during part of 

each year.

Remarks.- Records good except those for Oct. 1 to Nov. 7, Apr. 1-8, Apr. 15 to June 30, 

wKTch are fair. Discharge computed from records of gate openings and effective head 

as shown by recorders. Canal diverts from Woodbridge Reservoir on Mokelumne River in 

sec. 34, T. 4 N., R. 6 E., for irrigation of lands south and west of Woodbridge.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

b

6

7

8

9

10

11

12

13

 Ib

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

220

217

210

186

184

182

173

174

174

178

178

174

163

163

186

186 .

186

184

173

163

164

168

173

178

174

174

173

176

173

159

155

Nov.

159

154

148

127

144

135

118

114

105

98

100

120

149

155

154

146

134

123

121

88

84

73

36

27

9.0

0

0

0

o

0

-

Dec. Jan. Feb.

Month

December ....................................

Calendar year 1946 ......................

January

Bay

September. .................................

Water year 1946-47 ......................

Mar. Apr.

a31

a44

a44

a44

a44

a44

a44

a44

44

82

126

159

199

289

348

371

366

350

336

315

322

306

328

350

336

332

330

266

330

370

-

Secondfoot-days

0

64,818.8

9 530

7,780

59,571.0

May

362

376

354

286

301

306

348

372

355

343

328

289

315

373

369

384

358

328

301

323

362

380

364

358

337

324

337

343

360

359

310

Maximum

1 ^Q

0

425

372

321

454

June

290

260

246

253

265

265

245

196

178

168

182

184

225

265

210

207

257

272

265

255

265

214

198

206

250

260

250

240

220

182

-

Minimum

0

0

178

245

208

0

July

178

334

428

454

326

227

209

218

274

296

274

268

305,

283

259

299

325

355

348

294

239

275

341

350

354

348

332

336

325

341

335

Aug.

328

336

316

332

357

365

372

363

364

331

289

325

346

?44

318

309

295

245

272

316

326

319

266

260

264

309

311

318

300

280

271

Mean

0

17S

342

tf\-T

259

163

Sept.

271

264

289

321

304

294

261

261

274

266

268

272

254

225

208

246

266

260

242

229

224

237

264

270

274

273

247

235

219

262

Runoff in 

acre-feet

0

128,600

15,450

118,200

a No gage-height record; discharge computed on basis of furnished record of gate operations and 

staff-gage readings.

854211 O - 49 - 20
294 MOKELUMNE RIVER BASIN

Dry Creek near Gait, Calif.

Location.- Water-stage recorder, lat. 38°15', long. 121°13', in NEi sec. 32, T. 5 N., R. 

7 E ., 2 miles downstream from Coyote Creek and 4 miles east of Gait.

Drainage area.- 325 square miles.

Records available.- October 1944 to September 1947. December 1926 to September 1933 at 

site 4 miles downstream.

Extremes.- Maximum discharge during year, 1,040 second-feet Mar. 11 (gage height, 11.91 

feet); no flow at'times.

1926-33, 1944-47: 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.- Sixteen discharge measurements furnished by Bureau of Reclamation.

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. Nov.

0

o

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

11

.9

4.8

79

17

5.5

.7

0

0

0

~

Dec.

0

o

o

0

0

0

0

29

14

5.7

2.7

f.2

f.2

0

0

0

0

0

0

0

0

0

0

0

2.7

61

56

92

86

58

35

Jan.

27

19

16

16

7.7

6.3

4.7

3.8

6.6

4.3

4.3

3.9

3.9

2.4

2.7

3.3

4.1

3.1

1.8

1.1

1.0

1.0

3.0

3.8

2.0

1.1

1.7

2.8

34

45

25

Feb.

24

19

15

14

13

10

a. 9

7.5

7.0

7.7

14

161

468

192

120

78

65

52

48

40

34

27

24

22

21

20

18

16

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March.. ....................................

April ...................................

May. .......................................

July. ......................................

September. .................................

Wster year 1946-47 ......................

Mar.

13

19

59

188

137

90

65

59

61

356

726

313

198

136

106

84

71

56

45

38

34

32

30

40

35

29

24

22

67

75

94

Apr.

64

58

115

234

140

100

80

69

68

65

49

46

37

30

25

22

19

18

16

15

14

12

10

8.4

6.8

6.3

3.8

2.4

3.0

3.3

-

Secondfoot-days

442.5

20,119.1

3. 340 0

.3

7,059.5

May

1.7

.6

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

.1

0

0

o

0

0

0

0

0

0

0

Maximum

92

1,070

45

234

.3

726

June

Minimum

0

0

0

0

July

0

o

0

0

0

0

.2

0

0

0

.2

0

0

0

0

0

0

0

0

o

0

0

1.6

1.1

1.4

1.2

,9

0

.2

1.1

1.5

Aug.

1.6

1.5

1.4

1.0

.3

1.6

2.4

2.5

2.5

1.8

0

0

0

0

0

..3

1.7

3.1

2.4

1.0

2.0

1.4

.9

.5

.9

2.4

.8

.1

.3

.5

.3

Mean

14.3

55.1

55 2

30

.01

19.3

Sept.

0.3

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Runoff in 

acre feet

878

39,900

.6

14,010

Peak discharge.- Nov. 24 (3 to 4 a.m.) 135 sec.-ft.; Feb. 13 (6 a.m.) 540 sec.-ft.; Mar. 4 (4:30

m. ) 233 sec.-ft.; Mar. 11 (2 to 3 a.m.) 1,040 sec.-ft.; Apr. 4 (9 to 10 a.m.) 283 sec.-ft.

f Fragmentary gage-height record; discharge computed on basis of partly estimated gage heights.
MOKELUMNE RIVER BASIN 295

Cosumnes River at Michigan Bar, Calif.

Location.- Water-stage recorder, lat. 38°30 I 00", long. 121°OS'45", in SEi sec. 36, T. 8 

w., 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 1947.

Average discharge.- 40 years, 472 second-feet.

Extremes.- Maximum discharge during year, 3,930 second-feet Mar. 10 (gage height, 6.06 

reet); no flow on many days in August and September.

1907-47: 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 1946-47 (gage height, In feet, 

and discharge, in second-feet)

1.3 0 1.8 10 2.7 127 4.1 860 

1.4 .6 2.0 22 2.9 177 4.5 1,280 

1.5 1.5 2.2 43 3.2 275 5.0 1,940 

1.6 3.5 2.3 56 3.5 400 5.5 2,740 

1.7 6.4 2.4 70 3.8 6OO

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.

4.5 

4.5 

14 

41 

29

29 

25 

22 

22 

22

22 

22 

20 

20 

20

25 

47 

48 

38 

31

26 

28 

29 

30 

35

33 

30 

29 

28 

27 

28

Nov.

28 

28 

30 

33 

33

35 

31 

30 

32 

37

31 

31 

35 

36 

37

39 

41 

43 

132 

1,100

394 

220 

839 

698 

326

237 

189 

166 

148 

136

Dec.

125 

116 

110 

119 

198

376 

509 

326 

264 

227

201 

186 

172 

158 

150

143 

136 

132 

123 

119

116 

112 

110 

123 

198

227 

254 

346 

268 

240 

210

Jan.

192 

186 

164 

143 

145

153 

145 

136 

134 

129

127 

123 

121 

125 

123

98 

93 

106 

106 

110

108 

104 

102 

100 

100

102 

116 

166 

183 

161 

174

Feb.

174 

155 

153 

150 

150

153 

158 

166 

174 

216

237 

1,300 

1,860 

990 

734

600 

544 

467 

412 

380

346 

326 

303 

286 

275

268 

254 

258

Month

Ootc 

Neve 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Da

mber. ..................................

mber. ...................................

lendar year 1946 

ary

uary

h. .....................................

1.. ....................................

ember. .................................

ter year 1946-47 ......................

Mar.

250 

383 

516 

752 

579

474 

418 

454 

481 

2,610

1,980 

1,340 

1,030 

860 

752

664 

593 

558 

516 

488

448 

418 

460 

430 

385

360 

338 

617 

733 

1,060 

833

Apr.

664 

624 

1,340 

1,270 

880

761 

698 

648 

716 

672

608 

579 

537 

509 

488

460 

448 

430 

406 

390

375 

360 

334 

318 

306

289 

286 

278 

275 

268

May

268 

282 

289 

296 

292

286 

282 

268 

244 

220

204 

189 

180 

172 

166

155 

153 

145 

129 

132

127 

119 

110 

102 

96

85 

85 

93 

93 

80 

84

Second- MMI-, foot-days " a*"" 

829.0 48 

5,195 1,100 

6,094 509

145,709.1 3,640

4,075 192 

11,489 1,860 

21,780 2,610 

16,217 1,340 

5,426 296 

1,678 119 

194.8 15 

35.1 2.0 

5.8 1.3

73,018.7 2,610

June

93 

112 

102 

91 

85

80 

87 

112 

119 

104

84 

70 

59 

53 -51

46 

43 

32 

30 

28

27 

23 

22 

21 

20

18 

18 

17 

16 

15

Minimum

4.

28 

110

2.

93 

150 

250 

268 

80 

15 

1.

o"

0

July

15 

14 

13 

12 

11

10 

9.4 

9.0 

7.8 

7.8

7.5 

6.8 

6.1 

5.4 

5.4

5.4 

5.0 

5.0 

4.2 

4.2

4.0 

3.5 

3.8 

3.0 

3.5

3.0 

2.6 

2.2 

1.4 

1.8 

2.0

Aug.

1.8 

1.6 

2.0 

2.0 

2.0

1.8 

1.3 

1.4 

1.4 

1.6

1.1 

1.6 

1.2 

1.6 

1.6

.9 

1.3 

1.2 

1.1 

1.0

.5 

.8 

.3 

.7 

.7

.4 

.7 

.6 

.6 

.2 

.1

Sept.

0.3 

.1 

0 

0

0

0 

0 

0 

0 

0

.3 

.5 

.2 

.2 

.2

.2 

.4

.1 

0 

.2

.2 

.1 

0 

0 

0

0 

0 

.3 

1.2 

1.3

 <> . Runoff in M8an acre-feet

5 26.7 1,640 

173 10,300 

197 12,090

J 399 289,000

131 8,080 

410 22,790 

703 43,200 

541 32,170 

175 10,760 

55.9 3,330 

1 6.28 386 

I 1.13 70 

.19 12

200 144,800

Peak discharge.- Nov. 20 (7 a.m.) 1,520 sec, -ft.; Nov. 23 (7 p.m.) 1,570 sec. -ft.; Feb. 12

(10 p.m.) 3,240 sec.-ft.; Mar. 10 (3 p.m.) 3,930 sec.-ft.j Mar. 30 (3 p.m.) 1,250 sec.-ft.; Apr. 

3 (8 p.m.) 2,050 sec.-ft.
296 MOKELUMNE RIVER BASIN

Cosumnes River at McConnell, Calif.

Location.- Water-stage recorder, lat 38°22', long. 121°21', in Omochunmes Grant at bridge 

on U. S. highway 99, 0.2 mile south of McConnell, 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 1947 in reports of Geological Survey. 1942- 

4Y in reports of Division of Water Resources, Department of Public Works, State of 

California.

Extremes.- Maximum discharge during year, 4,220 second-feet Mar. 11 (gage height, 38.24 

 feet); no flow Oct. 1-7, June 28 to Sept. 30.

1943-47: Maximum discharge, 15,800 second-feet Feb. 3, 1945 (gage height, 43.20 

feet); no flow during parts of each year.

Remarks- Records good except those for periods of doubtful or no gage-height record, 

which are fair. Diversions above station for irrigation.

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.

0

0

0

0

0

0

0

a8

a!5

11

10

10

8.2

9.1

10

11

10

7.6

22

24

21

15

13

14

14

19

18

20

21

20

19

Nov.

20

20

21

23

24

24

24

23

18

21

28

24

21

24

24

28

28

34

47

645

745

284

327

1,030

494

304

226

187

164

146

-

Dec.

132

120

115

111

134

216

523

431

306

246

211

189

178

164

151

144

136

126

120

113

110

104

100

98

13?

218

220

315

312

256

230

Jan.

203

194

182

159

144

155

155

144

134

130

124

122

115

119

117

110

84

89

90

98

100

95

93

90

89

90

92

118

175

162

153

Feb.

178

159

148

144

142

144

146

148

157

171

220

390

3,130

2,O9O

961

698

594

517

456

411

375

351

323

303

286

272

261

252

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March ......................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

248

252

450

992

834

576

463

417

460

1,310

3,740

1,900

1,260

966

811

694

631

590

548

524

501

460

435

472

417

389

362

410

722

894

1,060

Apr.

749

d630

816

1,660

1,090

838

732

670

d640

682

d620

d600

d570

d530

d510

d485

d470

d450

d430

d410

d400

d380

d365

d340

d325

d300

d280

d270

266

257

-

Secondfoot-days

349. 9

5,028*

5,961

150,908.9

3,924

13,427

23,788

16,765

4,605

1,004.4

0

0

0

74,852.3

May

248

248

261

263

275

266

237

248

241

219

200

184

166

149

147

138

129

d!20

dllO

dllO

d90

d77

d70

71

49

50

44

44

45

53

53

Maximum

24

1,030

523

3,800

203

3,130

3,740

1,660

275

91

0

0

0

3,740

June

51

63

91

d60

d54

d50

55

64

86

90

80

57

47

35

33

31

27

21

3.6

al.5

al.2

al.O

a. 8

a. 6

a. 4

a. 2

a.l

0

0

0

-

Minimum

1

9

8

14

24

25

4

July Aug.

Mean

3 11.3

8 168

8 192

3 413

4 127

2 480

3 767

7 559

4 149

3 33.5

3 0

3 0

3 0

3 205

Sept.

Runoff in 

acre-feet

694

9,970

11,820

299,300

7,780

26,630

47,180

33,250

9,130

1,990

0

0

0

148,400

Peak discharge.- Nov. 20 (8:30 p.m.) 1,400 sec.-ft.; Feb. 13 (8:30 p.m.) 4,040 sec.-ft.; Mar. 4 

(7 p.m.) 1,500 sec.-ft.; Mar. 11 (12 m.) 4,220 see.-ft.; Apr. 4 (7 a.m.) 1,940 sec.-ft.

a No gage-height record; discharge computed on basis of 1 field estimate and records for station 

at Michigan Bar.

d Doubtful gage-height record; discharge computed en basis of 6 discharge measurements and records 

for station at Michigan Bar.
GOOSE LAKE BASIN 297 

Drew Creek near Lakeview, Oreg.

Location.- Water-stage recorder, lat. 42°07', long. 120°35', in NW^ sec. 10 or S¥£ sec. 3, 

'!'. 40 S., R. 18 E., at highway bridge, l| 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 1947 in 

reports or 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, 87 second-feet Feb. 12 (gage height, 2.07 feet); 

minimum, 0.4 second-foot sometime during period of no gage-height record Sept. 11-30- 

(gage height, 0.56 foot).

1909-47: Maximum discharge, 3,000 second-feet Mar. 1, 2, 1910, from rating curve 

extended above 1,200 second-feet; no flow at times.

Remarks.- Records good April to September and fair October to March, except those for

periods of 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 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

T 

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.

1.6 

1.4 

1.4 

1.2 

1.2

1.0 

1.2 

1.2 

1.0 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.3

1.4 

1.4

Nov.

1.4 

1.4

1.4 

1.4 

1.4

1.4 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.7 

1.9

1.7 

1.9 

2.3 

3.0 

2.8

2.5 

3.8 

4.8 

2.8 

2.5

2.5 

2.5 

2.3 

2.3 

2.3

Month

Dot 

Hov 

Dec

Ca

y

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

Wa 

1

lendar 

ear 1946......

ter year 

946-47..

Dec.

2.3 

2.1

> 2.4

2.1 

2.1 

2.3 

1.9 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.3 

2.3 

2.3 

2.1 

b2.3 

b2.3

Jan.

. b3.5

3.0 

3.8 

4.0

\ b4.0

;

5.3 

4.0 

6.8

> b7.0

3.0 

2.5 

2.5 

2.5 

2.5

Secondfoot, 

days

39.2 

63.2 

70.2

29,717.3

123.4 

126.2 

233.2 

268.1 

1,522 

666.6 

1,487 

965 

145.1

5,709.2

Feb.

2.5 

3.0 

2.5 

2.5 

2.8

3.0 

2.8 

2.5 

3.0 

2.8

2.3 

29 

7.4 

5.0 

4.2

4.5 

4.2 

4.0 

4.0 

3.8

3.8 

3.8 

3.8 

3.8 

4.0

4.0 

4.0 

3.2

Maximum

1.6 

4.8

674

29 

19 

38 

55

51 

16

55

Mar.

3.0 

3.2 

3.2 

3.2 

3.0

3.0 

3.0 

3.0 

4.0 

19

14 

10 

12 

12 

9.6

, 8.0

Minimum

1.0

1.4 

1.9

1.0

2.3

3.0

38

44 

16

-

Apr.

8.0

7.7 

7.1

7.1 

7.1 

7.1

» 7.0

25 

38

Mean

1.26 

2.11 

2.26

81.4

3.98 

4.51 

7.52 

8.94 

49.1 

22.2 

48.0 

31.1 

4.84

15.6

May

38 

38 

38 

40 

49

53 

55 

55 

53 

53

53 

53 

53 

53 

53

52 

46 

46 

46 

45

44 

44 

49 

49

52

June

> 21

9.6 

20 

28

27 

27 

27 

32 

34

Runoff 

in 

acre -feet

78 

125 

139

58,960

245 

250 

463 

532 

3,020 

1,320 

2,950 

1,910 

288

11,320

July

44 

44 

44

> 45

46 

47

49 

50 

50 

50 

49

50 

51 

51

> 49

Drew Creek 

Reservoir 

(contents in 

acre-feet )t

e23,400 

e24,100 

e24,800

-

24,800 

27,400 

35,270 

39,740 

e34,200 

631,700 

e24,400 

e!7,500 

e!6,000

-

Aug.

t "

44 

39 

39 

39 

38

38 

39 

38 

3S 

37

33 

26 

26 

26 

26

26 

24 

20 

20 

20

19 

16 

16 

16 

16 

16

Sept.

16 

16 

16 

16 

16

16 

16 

12 

2.5 

2.3

2.3 

2.1 

2.1 

2.1

1.7

> .4

North Drew 

Canal 

(diversion in 

acre-feet)

0 

0 

0

-

0 

0 

0 

123 

3,470 

2,820 

3,910 

3,250 

353

13,930

t Contents at end of month.

b Stage-discharge relation affected by ice.

e Reservoir gage not read at end of month; contents interpolated.

Note.- Ho record of creek gage height Oct. 12 to Hov. 4, Dec. 3-15, Mar. 16 to Apr. 8, Apr. 14 to 

May Z, May 19-21, May 25 to June 22, July 4-8, July 19 to Aug. 5, Sept. 1-4, 12-30j discharge interpolated, or computed on basis of weather records, recorded range in stage, and records of reservoir gate changes.
298 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 E., 200 yards downstream from Cottonwood Reservoir and 10 miles northwest of

Lakeview.

Drainage area.- 30 square miles. 

Kecords avaiiaDle.- November 1908 to September 1919 and October 1925 to September 1947

in reports of Geological Survey. November 1908 to September 1919 and October 1924 to

September 1936 in reports of State engineer.

Average discharge.- 26 years (1909-19, 1924-35, 1938-42, 1946-47), 19.5 second-feet. 

.Extremes.- Maximum discharge during year, 67 second-feet Apr. 3 (gage height, 2.92 feet);

minimum, 0.2 second-foot Feb. 2 (gage height, 1.21 feet).

1908-19, 1924-47: Maximum discharge, between 500 and 1,000 second-feet during

period Apr. 26 to May 1, 1927, when natural flow, estimated as 170 second-feet, was

augmented by water escaping from reservoir through break in outlet conduit above control gate; no flow at times. 

Remarks.- Records good except those for 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 table, water year 1946-47, except periods of Ice effect 

(gage height, In feet, and discharge. In second-feet)

1.2

1.3

1.4

1.5

1.6

1.5 

2.6

4.0

1.7

1.8

1.9

2.0

2.1

5.6

7.5

9.6

12

14

2.2

2.3 

2.5 

2.7 

2.9

Discharge, in aeccnd-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.

1.9

1.9

2.0

2.2

1.9

1.9

2.0

2.0

1.9

1.9

1.9

1.8

1.8

1.8

1.7

1.8

2.0

2.0

2.0

2.0

2.6

3.4

3.0

2.5

2.3

2.2

1.9

bl.9

1.9

al.9

al.9

Nov.

al.9

al.9

al.9

1.9

2.2

1.9

1.9

2.2

2.3

1.7

b2.0

b2.0

b2.0

b2.0

*b2.5

b2.0

2.2

5.6

13

5.4

6.9

7.1

14

7.7

5.6

5.4

5.4

7.1

8.6

6.6

-

Dec.

5.8

5.1

4.0

12

10

8.1

bS.O

5.6

5.1

6.0

6.7

8.6

21

25

15

8.3

b7.0

*b4.5

b3.5

b4.0

b4.5

b4.5

b4.5

b4.5

4.5

5.1

5.1

a3.5

Jan.

]1

I

V a3.5

/

*3.6

2.9

2.7

3.2

2.7

2.6

2.5

2.3

2.4

 b3.0

*3.9

11

11

b9.o

5.6

4.0

3.6

2.5

3.2

Feb.

3.4

1.7

.4

.6

.6

.6

.6

.6

.6

.6

.8

al.O

al.l

al.2

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.2

1.0

1.0

1.0

_

_

-

Month

October. ...................................

November ......................... .........

December . ..................................

Calendar year ......................

January. ........................ .....

February. ..................................

March ......................................

April....... ...............................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.3

Apr.

1.9

2.0

39

59

11

a2.4

a2.4

a2.4

aZ.4

Z.4

2.4

2.4

2.4

2.3

2.3

4.0

9.9

16

21

23

23

24

24

24

24

24

24

24

24

24

-

Secondfoot-days

63.9

132.9

217.0

121.2

31.8

34. 1

449^6

1,011

145.2

1,094

231 5

sisio

4,045.2

Hay

24

24

24

26

27

28

30

34

37

37

37

37

37

30

23

24

27

30

31

37

40

43

44

44

44

44

40

34

34

27

13

Maximum

3.4

14

25

11

3.4

1.3

59

44

18

55

15

30

59

June

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.2

2.2

1.6

1.1

1.1

1.1

4.0

7.9

13

18

18

18

18

-

Minimum

1.7

1.7

.4

1.0

1.9

13

1.1

18

1.7

.9

.4

July

19

24

24

24

27

37

44

44

44

50

55

55

54

54

53

53

50

48

46

45

34

28

24

18

19

21

20

20

20

20

20

Aug.

15

12

12

12

11

5.3

1.7

2.9

6.6

9.8

9.8

9.8

9.8

6.9

5.1

5.1

5.1

5.1

5.0

7.7

9.8

6.9

4.3

4.3

4.2

4.2

4.2

4.2

7.7

12

12

Mean

2.06

4.43

7.00

3.91

1.14

1.10

15.0

32.6

4.84

35.3

7.47

17.1

11.1

Sept.

12

14

16

16

16

16

16

16

16

16

16

16

15

15

15

15

15

14

21

30

29

28

27

26

25

23

20

7.1

1.0

.9

-

Runoff in 

acre-feet

127

264

430

240

63

68

892

2,010

288

2,170

459

1,020

8,030

* Winter discharge measurement made on this day.

a No gage-height record; discharge Interpolated, or computed on basis of weather records and records dsfor Drew Creek near Lakeview. Lakeview.

b Stage-discharge relation affected by ice
SACRAMENTO RIVER BASIN 299

SACRAMENTO RIVER MAIN STEM

Sacramento River at Delta, Calif.

Location (revised) - Water-stage recorder, lat. 40°56'20", long. 122°24'56", in NW£ sec. 

3b, T. 3b N., H. 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-are&r- 427 square miles.

Records available.- December 1944 to September 1947.

Extremes.- Maximum discharge during year, 8,300 second-feet Nov. 22 (gage height, 10.34 

reet); minimum, 155 second-feet Sept. 26-30.

1944-47: Maximum discharge, 14,200 second-feet Dec. 27, 1945 (gage height, 12.46 

feet); 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 table, vater year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

3.7 151 4.8 535 7.0 2,300 

3.8 171 5.2 755 7.5 2,920 

4.0 225 5.6 1,020 8.O 3,620 

4.2 290 6.0 1,310 9.0 5,340 

4.5 401 6.5 1,750 10.0 7,470

Discharge, in second-feet, water year October 1946 tc 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.

184 

196 

208 

199 

196

196 

196 

196 

196 

191

188 

188 

188 

188 

188

191 

196 

199 

199 

199

210 

267 

257 

222 

210

205 

205 

210 

213 

213 

216

Nov.

213 

210 

208 

208 

205

208 

208 

205 

205 

205

205 

205 

205 

208 

208

210 

210 

418 

1,310 

521

401 

3,040 

2,880 

957 

634

512 

448 

414 

414 

393

Dec.

382 

378 

499 

814 

788

1,570 

1,030 

807 

673 

590

565 

535 

502 

479 

468

443 

418 

397 

389 

385

382 

370 

362 

358 

374

389 

389 

370 

362 

347 

332

Jan.

336 

325 

322 

304 

308

311 

300 

297 

294 

294

294 

297 

294 

290 

277

270 

274 

274 

277 

274

274 

274 

274 

277 

283

308 

297 

332 

304 

318 

300

Feb.

304 

325 

332 

344 

358

374 

397 

414 

514 

794

1,220 

6,610 

3,250 

1,890 

1,420

1,500 

1,270 

1,120 

1,010 

904

840 

781 

737 

713 

701

701 

749 

678

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apri

May

June 

July 

Augu 

Sept

Ra

ber. ...................................

mber. ..................................

lendar year 1946 

ary

h. .....................................

ember. .................................

ter year 1946-47 ......................

Mar.

678 

1,330 

3,280 

2,480 

1,680

1,340 

1,180 

1,080 

1,530 

3,310

2,270 

1,730 

1,470 

1,390 

1,370

1,340 

1,370 

1,400 

1,400 

1,320

1,220 

1,190 

1,150 

1,000 

918

872 

866 

1,020 

3,020 

3,650 

2,860

Apr.

2 

1

1 

1 

1

1 

1 

1 

1 

1

1 

1, 

1

1 

1, 

1, 

1, 

1,

1,

Secondfoot-days

6,310 

15,868 

16,147

304,626

9,153 

30,250 

50,714 

35,179 

17,298 

31,130 

8,662 

5,894 

4,945

231,550

160 

900 

730 

520 

410

290 

210 

140 

080 

020

992 

985 

020 

150 

310

410 

410 

230 

150 

110

030 

937 

892 

885 

872

866 

872 

866 

866 

866

May

878 

1,010 

992 

885 

794

737 

713 

774 

725 

634

580 

550 

530 

526 

468

466 

456 

439 

426 

414

397 

374 

362 

355 

347

340 

362 

378 

362 

389 

615

June

1,790 

1,510 

911 

737 

1,020

1,180 

2,400 

4,200 

2,670 

1,790

1,370 

1,150 

985 

872 

788

749 

725 

651 

602 

560

535 

507 

479 

461 

443

435 

422 

409 

397 

382

Maximum Minimum

267 184 

3,040 205 

1,570 332

4,190 176

336 270 

6,610 304 

3,650 678 

2,160 866 

1,010 340 

4, 200 382 

370 219 

231 169 

184 155

6,610 155

July

370 

358 

351 

340 

336

325 

318 

308 

297 

290

290 

290 

287 

a278 

a268

260 

254 

251 

244 

238

228 

225 

219 

219 

219

222 

270 

355 

267 

247 

238

Aug.

231 

225 

216 

213 

210

205 

199 

196 

194 

191

191 

186 

184 

184 

181

178 

176 

174 

174 

174

186 

194 

186 

181 

174

169 

169 

171 

186 

205 

191

Mean

204 

529 

521

835

295 

1,080 

1,636 

1,173 

558 

1,038 

279 

190 

165

634

Sept.

184 

176 

171 

171 

171

169 

169 

171 

171 

169

165 

165 

161 

159 

161

161 

161 

165 

a!70 

a!70

a!70 

a!60 

a!60 

alSO 

a!60

a!55 

a!55 

a!55 

a!55 

al55

Runoff in 

acre-feet

12,520 

31,470 

32,030

604,200

18,150 

60,000 

100,600 

69,780 

34,310 

61,750 

17,180 

11,690 

9,810

459,300

Peak discharge.- Nov. 22 (9:15 p.m.) 8,300 see. -ft.; Feb. 12 (9:20 a.m.) 8,180 sec. -ft. j Mar. 29

a Nc gage-height record; discharge computed on basis of recorded range in stage and records for 

Squaw Creek above Shasta Reservoir.
300 SACRAMENTO RIVER MAIN STEM

Shasta Reservoir near Redding, Calif.

Location.- Water-stage recorder, lat. 40°43', long. 122°25', in S^ sec. 15, T. 33 N., R. 

b 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 1947.

Extremes.- Maximum contents during year, 3,097,000 acre-feet Apr. 23-25 (elevation,

J-.Uil.97 feet Apr. 25); minimum, 2,102,000 acre-feet Jan. 31 (elevation, 963.16 feet). 

1942-47: Maximum contents, 3,469,000 acre-feet May 13, 14, 1946 (elevation,

1,027.44 feet).

Remarks.- Reservoir is formed by concrete gravity-type dam not yet completed; regulation 

or discharge from reservoir began Dec. 30, 1943. Temporary usable capacity, 3,683,000 

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 acrefeet is not available for release. All water passes down Sacramento River, some first 

passjng through power plant at dam. Records show total contents at 12 p.m.

Cooperation.- Record of contents furnished by Bureau of Reclamation.

Contents, In thousands of acre-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.

2,447

2,442

2,438

2,433

2,428

2,422

2,417

2,412

2,408

2,403

2,398

2,393

2,388

2,384

2,380

2,375

2,370

2,367

2,362

2,356

2,352

2,349

2,346

2,342

2,337

2,332

2,327

2,323

2,318

2,313

- 2,309

Nov.

2,304

2,299

2,293

2,289

2,284

2,280

2,274

2,270

2,264

2,259

2,254

2,250

2,245

2,241

2,237

2,232

2,227

2,227

2,234

2,232

2,231

2,253

2,269

2,271

2,270

2,269

2,267

2,264

2,261

2,258

-

Dec.

2,255

2,252

2,252

2,253

2,255

2,265

2,269

2,272

2,273

2,272

2,272

2,271

2,269

2,266

2,262

2,260

2,256

2,254

2,251

2,248

2,244

2,240

2,237

. 2,234

2,230

2,226

2,224

2,221

2,218

2,214

2,211

Jan.

2,206

2,203

2,199

2,195

2,190

2,186

2,182

2,178

2,174

2,170

2,165

2,159

2,155

2,151

2,147

2,143

2,139

2,135

2,129

2,125

2,121

2,117

2,113

2,110

2,107

2,104

2,103

2,103

2,103

2,103

2,102

Feb.

2,104

2,104

2,104

2,106

2,108

2,109

2,111

2,112

2,113

2,118

2,131

2,191

2,222

2,243

2,260

2,274

2,287

2,297

2,307

2,313

2,320

2,326

2,330

2,333

2,338

2,343

2,348

2,352

_

-

Mar.

2,360

2,378

2,434

2,465

2,485

2,500

2,513

2,527

2,550

2,598

2,627

2,648

2,666

2,681

2,693

2,708

2,719

2,731

2,741

2,750

2,760

2,769

2,776

2,785

2,793

2,800

2,808

2,817

2,831

2,860

2,884

Apr.

2,902

2,920

2,938

2,953

2,967

2,979

2,990

3,000

3,011

3,021

3,029

3,037

3,045

3,053

3,061

3,069

3,077

3,084

3,089

3,092

3,094

3,096

3,097

3,097

3,097

3,096

3,095

3,095

3,093

3,091

Hay

3,088

3,086

3,082

3,077

3,073

3,069

3,065

3,061

3,057

3,052

3,046

3,042

3,037

3,033

3,028

3,023

3,019

3,013

3,008

3,003

2,998

2,992

2,987

2,981

2,973

2,968

2,963

2,960

2,954

2,950

2,948

June

2,952

2,954

2,952

2,952

2,955

2,960

2,969

2,987

3,000

3,008

3,021

3,014

3,015

3,013

3,009

3,007

3,005

3,002

2,999

2,994

2,989

2,983

2,979

2,973

2,969

2,962

2,956

2,948

2,939

2,933

-

July

2,926

2,919

2,912

2,903

2,895

2,885

2,879

2,871

2,864

2,856

2,849

2,840

2,830

2,822

2,816

2,803

2,800

2,792

2,782

2,771

2,763

2,756

2,747

2,740

2,732

2,721

2,711

2,704

2,696

2,689

2,680

Aug.

2,673

2,662

2,652

2,643

2,635

2,628

2,620

2,612

2,600

2,590

2,581

2,574

2,566

2,558

2,550

2,541

2,531

2,524

2,516

2,509

2,502

2,494

2,485

2,476

2,469

2,461

2,455

2,449

2,445

2,437

2,429

Sept.

2,422

2,416

2,411

2,406

2,401

2,394

2,387

2,383

2,377

2,370

2,365

2,360

2,355

2,348

2,347

2,343

2,340

2,336

2,333

2,329

2,323

2,320

2,317

2,315

2,312

2,309

2,303

2,297

2,294

2,292

-

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946....

Aug 31

Water year 1946-47....

Elevation 

(feet)

-

973 51

-

Contents 

(acre-feet)

-

2 933 OOO

-

Change In contents 

during month 

(acre-feet)

51 000

-1,039,000

251 OOO

-158,000
SACRAMENTO RIVER MAIN STEM 301

Sacramento River at Keswick, Calif.

Location (revised).- Water-stage recorder, lat. 40°36', long. 122°27', in W| sec. 28, T. 

32 B., K. b W., 0.6 mile downstream from Keswick Dam, 0.6 mile upstream from Middle 

Creek, 1.5 miles downstream from Keswick, and 10 miles downstream from Shasta Dam. 

Datum of gage is 479.81 feet above mean sea level, datum of 1929.

Drainage area.- 6,710 square miles, excluding Goose Lake Basin.

Records available.- October 1942 to September 1947. October 1938 to April 1942 at site 

i.b miles upstream.

Extremes.- Maximum discharge during year, 7,650 second-feet (regulated) May 31 (gage

Height, 11.90 feet); minimum, 1,530 second-feet (regulated) Mar. 16 (gage height, 5.01 

feet).

1938-47: 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, 

580 second-feet (regulated) Mar. 17, 18, 1944 (gage height, 3.4 feet).

Remarks.- Records excellent except those for periods of backwater, which are good. Storage and many diversions above station; flow regulated at Shasta Reservoir (see preceding page).

Discharge, in seccnd-feet, water year October 1946 to September 1947

Day

1

?,

3

4

5

fi

7

8

9

10

11

IP!

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

?fl

29

sn

31

Oct.

5.6OO

5,610

5,630

5,600

5,630

5,620

5,630

5,620

5,460

5,560

5,710

5,790

5,500

5,790

5,810

5,840

5,850

5,850

5,850

5,550

5,850

5,870

5,860

5,850

5,870

5,850

5,870

5,880

5,880

5,900

5,900

Nov.

5,900

5,900

5,920

5,920

5,920

5,920

5,920

5,920

5,910

5,900

5,900

5,900

5,940

5,940

5,930

5,880

5,950

6,020

6,440

5,980

5,970

6,480

6,260

5,950

5,940

5,920

5,920

5,920

5,920

5,920

-

Dec.

5,920

5,920

6,020

6,020

6,030

6,630

6,000

5,960

5,940

5,920

5,930

5,930

5,930

5,910

5,900

5,900

5,900

5,910

5,910

5,910

5,910

5,910

5,910

5,930

5,930

5,930

5,930

5,940

5,930

5,930

5,940

Jan.

5,940

5,940

5,970

5,980

5,660

5,960

5,980

5,980

5,980

5,980

5,970

5,970

6,010

6,000

5,980

6,010

6,010

6,010

5,640

5,970

6,030

6,040

6,040

5,520

4,690

4,650

4,690

4,720

4,690

4,680

4,670

Feb.

3,800

3,340

3,400

3,370

3,490

3,400

3,400

3,350

3,400

3,350

3,960

5,010

3,790

3,510

3,450

3,430

3,400

3,400

3,360

3,330

3,280

3,320

3,080

3,430

3,330

3,160

3,340

3,140

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April ......................................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

3,080

3,340

5,210

4,050

3,330

3,190

3,140

3,070

3,540

3,910

3,350

3,160

3,080

3,080

3,170

2,790

3,310

3,050

2,960

2,870

3,070

3,000

2,800

3,000

2,930

2,950

3,070

2,850

3,050

3,480

3,200

Apr.

3,080

3,190

3,110

3,050

3,030

2,980

2,970

2,970

2,950

2,890

2,990

2,880

2,910

2,890

2,920

2,850

3,090

3,500

4,110

4,280

4,740

4,780

4,850

4,960

5,090

5,440

5,450

5,460

5,810

6,490

-

Secondfoot-days

179 210

184,680

2,821,330

193 100

157,160

2,032,280

May

6,490

6,480

6,480

6,480

6,490

6,490

6,490

6,490

6,490

6,480

6,490

6,510

6,510

6,510

6,490

6,440

6,440

6,450

6,450

6,470

6,480

6,510

6,480

6,490

6,490

6,450

6,440

6,480

6,440

6,560

6,780

Maximum

6,630

28,300

6,420

7,510

June

6,710

6,580

6,560

6,530

6,520

5,770

5,450

5,500

5,380

5,320

5,490

5,970

5,950

6,230

6,510

6,530

6,520

6,490

6,470

6,480

6,480

6,490

6,690

7,000

7,000

7,000

7,140

7,430

7,440

7,470

Minimum

5,900

5,210

2 790

4,670

2,790

July

7,460

7,420

7,460

7,470

7,470

7,470

7,470

7,490

7,490

7.4&0

7,490

7,480

7,470

7,480

7,480

7,490

7,490

7,510

7,480

7,470

7,490

7,510

7,480

7,470

7,490

7,490

7,480

7,490

7,490

7,480

7,490

Aug.

7,490

7,480

7,490

7,430

7,510

7,510

7,470

7,430

7,420

7,400

7,400

7,360

7,380

7,170

6,840

6,870

6,860

6,870

6,900

6,900

6,900

6,900

6,900

6,880

6,910

6,910

6,700

6,380

6,390

6,340

6,380

Mean

5 745

5 974

5,957

7,730

7 480

5,239

5,568

Sept.

5,950

5,880

5,930

5,930

5,650

5,570

5,590

5,620

5,860

6,400

6,420

6,060

4,700

4,670

4,720

4,710

4,730

4,810

4,810

4,790

4,820

4,820

4,830

4,840

4,850

4,830

4,850

4,810

4,850

4,860

Runoff in 

ao re-feet

353 200

366,300

5,596,000

192 400

399 100

311,700

4,031,000

Note.- Stage-discharge relation affected by backwater from diversion dam 3.5 miles below station 

Oct. 1 to Nov. 6, Apr. 18 to Sept. 30.
302 SACRAMENTO RIVER MAIN STEM

Sacramento River near Red Bluff, Calif.

Location.- Water-stage recorder, lat. 40°13'55", long. 122°10i50", in SE^-sec. 34, T. 

2B N. , R. 3 W., at lower end of Iron Canyon, 0.5 mile downstream from Sevenmile 

Creek and 4 miles northeast of Red Bluff. Datum of gage is 252.6 feet above mean 

sea level (from river-profile survey).

Drainage area.- 9,300 square miles, excluding Goose Lake Basin.

Records available.-January 1902 to September 1947. April 1895 to June 1902 at site at 

Jellys ferry,"12 miles upstream from Red Bluff.

Average discharge.- 52 years, 11,190 second-feet.

Extremes.- Maximum discharge during year, 41,400 second-feet Feb. 12 (gage height, 11 13 

reet); minimum, 3,390 second-feet (regulated) Feb. 8 (gage height, 0.50 foot).

1895-1947: 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 (regulated) Mar. 29, 1944 (gage height, -0.45 foot).

Remarks - Records excellent. Storage and many diversions above station; flow regulated by Shasta Reservoir (see p. 300).

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

0.8 3,900 2.5 7,780

1.2 4,660 3.0 9,150

1.6 5,520 4.0 12,100

2.0 6,470 5.0 15,300

6.0 18,700

7.0 22,400

8.0 26,500

9.1 31,500

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.

5,640

5,730

5,800

5,800

5,770

5,770

5,770

5,800

5,640

5,730

5,730

5,730

5,640

5,540

5,800

5,820

5,800

5,820

5,820

5,770

5,680

5,980

6,030

6,000

5,980

5,980

5,960

5,960

5,980

5,980

6,030

Nov.

6,150

6,220

6,170

6,240

6,320

6,320

6,270

6,200

6,200

6,200

6,200

6,220

6,220

6,240

6,240

6,200

6,240

6,400

7,620

7,590

6,770

7,290

11,800

8,180

7,140

6,800

6,640

6,570

6,520

6,500

-

Dec.

6,470

6,440

7,190

13,000

11,200

13,700

10,200

9,230

8,400

7,620

7,290

7,080

7,010

6,900

6,850

6,750

6,720

6,640

6,620

6,600

6,570

6,520

6,500

6,500

6,520

6,540

6,570

6,600

6,540

6,520

6,520

Jan.

6,500

6,470

6,470

6,440

6,370

6,220

6,470

6,470

6,470

6,500

6,500

6,520

6,520

6,520

6,470

6,440

6,440

6,420

6,340

6,150

6,400

6,400

6,370

6,120

5,190

5,120

5,120

5,300

5,210

5,210

5,190

Feb.

5,040

3,970

3,950

3,970

4,100

4,010

4,060

3,990

4,180

5,150

6,020

31,200

22,800

9,550

7,240

6,900

6,400

5,660

5,300

5,060

4,760

4,680

4,480

4,380

4,330

4,250

4,310

4,250

_

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March .................................... .

April ......................................

May. .......................................

June .......................................

July. ......................................

August ................................. ...

September. .................................

Water year 1946-47 ......................

Mar.

4,080

5,280

13,900

22,100

10,200

7,290

6,220

5,820

6,750

18,700

12,700

8,930

7,350

6,520

6,120

6,370

5,300

5,430

5,280

5,080

4,870

4,760

4,890

4,660

4,600

4,460

4,460

4,520

4,950

6,270

9,040

Apr.

6,600

12

16

8

,100

,300

,480

6,820

6,750

5

5

5

5

,930

,610

,590

,280

5,000

4

4

4

4

,810

,740

,620

,540

4.360

4

4

4

5

5

5

5

5

5

6

6

6

6

6

Seoondfoot-days

180,480

201,670

233,810

3,368,860

190,330

183,990

226,900

186,570

210,430

217,580

231,760

219,590

158,660

2,441,770

,400

,580

,830

,320

,570

,700

,680

,770

,770

,050

,120

,120

,150

,980

-

May

7,110

7,060

7,060

7,060

7,030

7,010

6,980

6,980

6,980

6,930

6,880

6,880

6,880

6,800

6,720

6,640

6,620

6,620

6,620

6,570

6,570

6,570

6,540

6,540

6,540

6,620

6,600

6,700

6,670

6,670

6,980

Maximum

6,030

11,800

13,700

53,900

6,520

31,200

22,100

16,300

7,110

9,260

7,540

7,480

6,400

31,200

June

7,670

7,750

7,270

7,110

7,270

9,260

7,240

8,180

8,240

7,010

6,520

6,850

6,800

6,700

7,080

7,080

7,080

7,030

6,900

6,850

6,800

6,800

6,800

7,140

7,190

7,160

7,140

7,480

7,590

7,590

-

Minimum

5,54

6,15

6,44

5,54

5,12

3,95

4,08

4,36

6,54

6,52

7,43

6,42(

4,74

3,95<

July

7,540

7,460

7,480

7,480

7,460

7,460

7,460

7,480

7,510

7,510

7,510

7,480

7,480

7,480

7,480

7,480

7,480

7,480

7,480

7,460

7,460

7,460

7,460

7,430

7,460

7,460

7,480

7,480

7,480

7,460

7,480

Aug.

7,

7,

7,

7,

480

480

480

400

7,460

7,

7,

7,

7,

460

330

430

430

7,460

7,460

7,

7,

7,

400

400

400

6,980

6,880

6,

6,

6,

880

850

850

6,880

6,900

6,

6,

6,

330

330

300

6,880

6,880

6,

6,

6,

6,

380

140

120

170

6,470

Mean

3 5,822

3 6,722

D 7,542

D 9,230

3 6,140

3 6,571

3 7,319

3 6,219

3 6,788

3 7,253

3 7,476

3 7,084

3 5,289

3 6,690

Sept.

6,300

5,910

5,890

5,890

5,860

5,660

5,680

5,680

5,700

6,240

6,400

6,400

5,280

4,810

4,810

4,810

4,810

4,790

4,790

4,810

4,740

4,760

4,790

4,830

4,830

4,830

4,830

4,830

4,830

4,870

-

Runoff in 

acre- feet

358,000

400,000

463,800

6,682,000

377,500

364, 900

450,000

370,100

417,400

431,600

459,700

435,600

314,700

4,843,000
SACRAMENTO RIVER MAIN STEM 303

Sacramento River at Butte City, Calif.

Location.- Water-stage recorder, lat. 39°27'35", long. 121°59'35", in NE£ 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 

aeptemoer 194Y in reports of Geological Survey. 1939-47 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 49,300 second-feet Feb. 13 (gage height, 83.56 

reet); minimum, 4,050 second-feet Sept. 17 (gage height, 69.66 feet).

1940-47: Maximum discharge, 170,000 second-feet Feb. 7, 1942 (gage height, 96.87 

feet), from rating curve extended above 100,000 second-feet.

1921-47: Minimum discharge recorded, 1,050 second-feet July 15, 25, 26, 1931 

(gage height, 67.49 feet). -

Remarks.- Records good. Flow regulated by reservoirs above station and bypass-ing for 

riood 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. Twenty-four discharge 

measurements furnished by Bureau of Reclamation.

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.

5,220

5,310

5,350

5,360

5,350

5,330

5,350

5,360

5,400

5,270

5,310

5,330

5,330

5,290

5,180

5,360

5,400

5,380

5,470

5,490

5,470

5,450

5,800

6,100

6,100

6,060

6,060

6,060

6,080

6,130

6,020

Nov.

6,150

6,280

6,720

6,740

6,790

6,930

6,460

6,280

6,280

6,280

6,150

6,170

6,170

6,210

6,300

6,300

6,460

6,500

6,770

8,460

8,O70

7,500

12,000

14,200

9,850

8,410

7,880

7,640

7,410

7,360

-

Dec.

7,300

7,230

7,36O

11,600

17,300

20,000

20,200

13,900

12,000

10,500

9,490

8,890

8,530

8,290

8,070

7,930

7,830

7,710

7,690

7,590

7,550

7,480

7,460

7,430

7,430

7,460

7,480

7,570

7,550

7,410

7,410

Jan.

7,390

7,300

7,230

7,180

7,180

7,130

6,970

7,160

7,180

7,160

7, ISO

7,180

7,160

7,180

7,180

7,160

7,160

7,130

7,130

7,090

6,950

7,130

7,160

7,160

6,950

6,320

6,130

6,17O

6,240

6,170

6,080

Feb.

6,O6O

5,930

5,110

4,970

4,910

4,890

4,810

4,790

4,850

5,500

6.9OO

17,800

47,200

28,300

15,100

11,800

10,600

9,660

8,550

7,830

7,320

6,900

6/630

6,260

6,080

5,970

5,820

5,760

_

_

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 194S ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July........ ...............................

August .....................................

September ..................................

(later year 1946-47 ......................

Mar.

5,760

5,670

6,950

21,2OO

22.6OO

13,700

10,500

9,100

8,550

10,600

22,000

16,6OO

12,800

10,800

9,800

9,150

9,100

8,140

8,100

7,740

7,390

7,110

6,880

6,970

6,630

6,350

6,130

6,170

6,350

6,840

8,790

Apr.

10,400

9.1OO

15,500

19,600

12,400

1O.400

10,000

8,910

8,460

8,220

7,270

6,950

6,570

6,150

5,630

5,290

5,050

4,770

4,640

4,700

4,950

5,030

4,970

4,890

4,850

4,850

4,990

5,090

5,090

5,050

Seoondfoot-days

172,170

220,720

291,640

3,576,850

215,890

266,300

304,470

219,770

165,550

171 950

172^790

165,080

134,720

2,501,050

May

5,690

5,800

5,780

5,780

5,780

5,670

5,610

5,590

6,170

5,480

5,460

5,380

5,420

5,290

5,170

5,070

4,970

4,890

4,990

4,950

5,050

5,050

5,010

5,030

5,050

5,070

5,150

5,150

5,290

5,320

5,440

Maximum

6,130

14,200

20,200

76,300

7,390

47,200

22,600

19,600

6,170

7,520

5,690

5,630

5,250

47,200

June

5,670

6,300

6,46O

6,130

5,990

6,100

7,520

6,570

7,230

7,250

6,130

5,590

5,550

5,440

5,320

5,480

5,480

5,380

5,320

5,210

5,010

4,950

5,030

4,950

5,170

5,210

5,250

5,210

5,480

5,570

Minimum

5,180

6,150

7,230

5,170

6,080

4,790

5,670

4,640

4,890

4,950

5,460

4 930

4jl60

4,160

July

5,630

5,650

5,520

5,550

5,650

5,690

5,590

5,460

5,500

5,550

5,570

5,550'

5,550

5,630

5,630

5,550

5,570

5,550

5,550

5,550

5,550

5,550

5,590

5,670

5,570

5,550

5,570

5,590

5,590

5,570

5,500

Aug.

5.52O

5,630

5,630

5,610

5,500

5,480

5,520

5,500

5,550

5,570

5,610

5,520

5,480

5,520

5,500

5,230

5,130

5,070

5,110

5,050

5,130

5,170

5,230

5,270

5,250

5,130

5,150

5,170

4,950

4,930

4,970

Mean

5,554

7,357

9,408

9,800

6,964

9,511

9,822

7,326

5,340

5 732

5' 574

5 325 4)491

6,852

Sept.

4,950

4,890

4,560

4,490

4,470

4,490

4,360

4,390

4,510

4,600

4,970

5,23O

5,250

4,640

4,250

4,270

4,250

4,300

4,250

4,210

4,200

4,200

4,160

4,200

4,300

4,360

4,470

4,510

a4,500

a4,490

-

Runoff in 

acre-feet

341,500

437,800

578,500

7,094,000

428,200

528,200

603,900

435,900

328,400

341,100

342,700

327 400 257)200

4,961,000

a No gage-height rebord; discharge computed on basis of records for station at Colusa.
304 SACRAMENTO RIVER MAIN STEM

Sacramento River at Colusa, Calif.

Location.- Water-stage recorder, lat. 39°12'50", long. 121°59'55", at north end of Jimeno 

Grant, just downstream from highway bridge at Colusa, Colusa County. Zero of gage is 

set to datum of Corps of Engineers.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 1947 in reports of Geological Survey. 1939-47 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 32,300 second-feet Feb. 14 (gage height, 62.22 

reet); minimum, 4,050 second-feet Sept. 17 (gage height, 38.72 feet).

1940-47: Maximum discharge, 49,000 aecond-feet Feb. 8, 1942 (gage height, 69.20 

feet).

1921-47: Minimum discharge recorded, 820 second-feet July 25, 26, 1931 (gage 

height, 34.79 feet).

Remarks.- Records good. Flow regulated by reservoirs above station and bypassing forflood 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 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

11

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

 5,290

5,320

5,430

5,450

5,440

5,380

5,370

5,400

5,380

5,370

5,280

5,290

5,310

5,330

5,200

5,290

5,370

5,390

5,420

5,450

5,490

5,400

5,580

5,040

6,060

6,050

6,040

6,010

6,000

6,020

6,000

Nov.

6,000

6,070

6,420

6,520

6,540

6,640

6,590

6,250

6,200

6,200

6,140

6,070

6,080

6,110

6,130

6,240

6,260

6,340

6,420

7,310

8,170

7,420

8,610

13,700

11,600

9,020

8,130

7,770

7,570

7,440

-

Dec.

7,380

7,290

7,280

8,300

14,900

17,200

19,900

17,200

13,200

11,500

10,300

9,510

8,980

8,670

8,420

8,250

8,050

7,890

7,790

7,710

,670

,630

,580

,540

,560

,540

,550

,570

' ,600

,550

,470

Jan.

,430

,400

,370

,320

,290

,280

,140

' ,180

,230

,230

,23O

,230

,220

,210

,210

,190

,180

,170

,170

,180

,010

' ,090

,180

,180

,180

6,890

6,470

6,340

6,370

6,330

6,250

Feb.

6,240

6,240

5,660

5,370

5,290

5,250

5,230

5,190

5,210

5,39O

6,690

9,150

27,500

30,5OO

21,8OO

15,700

12,700

11,200

9,860

8,850

8,150

7,630

7,220

6,940

6,590

6,510

6,330

6,150

_

_

-

Month

December. .................................

Calendar year 1946 ......................

March ......................................

April ......................................

May........................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

6,130

6,020

6,460

12,800

22,900

18,700

12 , 900

10,100

9,050

9,000

17,000

19,300

15,300

12,300

10,700

9,780

9,470

8,800

8,510

8,210

,890

,520

,360

,280

,090

6,850

6,580

6 ;500

6,620

6,790

8,760

Apr.

10.2OO

9,64O

11,1OO

19,500

16,600

12,400

11,000

9,960

8,910

8,440

7,700

7,090

6,8OO

6,4OO

5,970

5,520

5,200

4,890

4,640

4,540

4,640

4,620

4,690

4,600

4,520

4,520

4,560

4,720

4,730

4,700

-

Secondfoot-days

215 960

292,980

3,344,700

132,210

2,468,350

May

4,870

5,260

5,340

5,370

5,410

5,350

5,280

5,240

5,550

5,440

5,180

5,110

5,060

5,040

4,920

4,900

4,790

4,750

4,810

4,760

4,800

4,820

4,770

4,720

4,790

4,750

4,790

4,840

4,880

4,950

4,920

Maximum

19,900

35,300

5,110

30,500

June

5.O80

5,430

5,810

5,630

5,440

5,340

6,460

6,O6O

6,140

6,570

5,840

5,230

5,070

5.11O

5,020

5,100

5,150

5,160

5,090

5,020

4,890

4,780

4,770

4,710

4,760

4,900

4,960

4,930

5,070

5,250

-

Minimum

7,280

5,160

6 250

4,120

4,120

July

5,310

5,400

5,300

5,220

5,380

5,420

5,440

5,360

5,290

5,320

5,310

5,270

5,320

5,270

5,260

5,190

5,170

5,170

5,170

5,200

5,160

5,180

5,200

5,260

5,270

5,320

5,370

5,420

5,460

5,480

5,430

Aug.

5,430

5,450

5,460

5,440

5,400

5,310

5,290

5,270

5,240

5,260

5,260

5,220

5,130

5,130

5,130

4,980

4,820

4,800

4,800

4,760

4,790

4,880

4,930

5,040

5,000

4,940

4,920

4,950

4,920

4,750

4,820

Mean

5 547

7 199

9,451

9,164

9 448

5 301

4,407

6,763

Sept.

4,780

4,780

4,510

4.34O

4,270

4,270

4,180

4,150

4,270

4,440

4,620

4,980

5,110

4,890

4,260

4,120

4,150

4,210

4,280

4,230

4,240

4,200

4,180 '

4,180

4,310

4,330

4,450

4,510

4,480

4,490

-

Runoff in 

acre-feet

581,100

6,634,000

314 900

312 400

262,200

4,896,000
SACRAMENTO RIVER MAIN STEM 305

Sacramento River below Wilkins Slough, Calif.

Location.- Water-stage recorder, lat. 39°00'35", long. 121°49'25", in Jimeno Grant, 1,500 

reet downstream from Wilkins Slough, Colusa County, and 6 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 

septemoer lysv in reports of Geological Survey. 1939-47 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.-.Maximum discharge during year, 22,400 second-feet Feb. 14 (gage height, 47.05 

reet); minimum, 3,390 second-feet Apr. 27 (gage height, 23.78 feet).

1940-47: Maximum discharge, 26,600 second-feet Feb. 8, 1942 (gage height, 52.29 

feet).

1931-47: Minimum discharge recorded, 100 second-feet Aug. 1, 1931 (gage height, 

14.20 feet).

Remarks.- Records good. Flow regulated.by reservoirs above station and bypassing for 

riooa 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. Twenty discharge measurements furnished by Bureau of Reclamation.

Rating tables, water year 1946-47 (gage height, In feet, and discharge) In second-feet) 

(Shifting-control method used Mar. 13 to June 26)

Oct. 1 to Feb. 13 Feb. 14 to Sept. 30

26 4,900 32 9,30O 39 14,600

28 6,330 34 10,800 42 17,000

30 7,800 36 12,300 45 19,400

24 3,62O 32 9,500 42 17,700

26 4,970 34 11,100

28 6,450 36 12,70O

30 7,950 39 15,200

45 20,300

47 22,300

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.

5,710

5,710

5,780

5,840

5,860

5,830

5,760

5,750

5,740

5,720

5,61O

5,570

5,470

5,470

5,390

5,370

5,470

5,480

5,490

5,54O

5,570

5,510

5,60O

5,770

5,840

5,830

5,810

5,77O

5,750

5,76O

5,770

Nov.

5,750

5,860

6,030

6.32O

6,370

6,440

6,470

6., 170

6,030

6,O30

5,990

5,910

5,910

5,940

5,960

6,060

6,110

6,190

6,320

6,68O

7,970

7,950

7,790

11,400

12,30O

10,100

8,810

8,150

7,820

7,630

-

Dec.

7,490

7,360

7,300

7,530

11,500

15,000

17,300

a!7,30O

a!4,400

12,500

11,5OO

10,600

9,980

9,54O

9,220

8,980

8,740

8,500

8,310

8,170

8,110

8,020

7,940

7,870

7,850

7,820

7,800

7,820

7,820

7,820

7,720

Jan.

7,670

7,650

7,580

7,510

7,50O

7,500

7,39O

7,360

7,39O

7,390

7,370

7,380

7,360

7,350

7,360

7,340

7,290

7,270

7,280

7,280

7,150

7,130

7,220

7,250

7,240

7,O50

6,610

6.42O

6,400

6,430

6,390

Feb.

6.37O

6,370

6,140

5,620

5,430

5,350

5,350

5,300

5,360

5,430

6,20O

7,450

17,000

22,300

21,000

18,000

15,100

13,200

11,700

10,600

9,680

8,990

8,410

7,950

7,510

7,250

6,980

6,740

-

-

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

llaroh. .....................................

April ......................................

Hay........................................

June .......................................

Jnly. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

6,650

6,590

6,650

9,060

18,200

19,300

15,400

12,200

10,500

9,720

12,900

18 , 6OO

16,900

13,800

12,000

10,700

9,960

9,480

8,930

8,640

8,300

7,930

7,630

7,420

7,340

7,080

6,800

6,580

6,610

6,850

7,520

Apr.

9

10

10

14

16

13

11

10

9

9

8

8

7

7

6

5

5

5

4

4

4

3

3

3

3

3

3

3

3

3

Secondfoot-days

175,540

212 ,460

297,810

3,074,650

223 510

262 ,78O

316,240

214 430

118 , 650

142,290

128,600

126,680

135,740

2,354,730

,390

,20O

,100

,8OO

,400

,20O

,300

,300

,51O

,010

,650

,01O

,590

,180

,610

,960

,5OO

,050

,600

,210

,040

,98O

,950

,780

,610

,470

,42O

,550

,560

,500

-

May

3,430

3,820

3,980

4,020

4,020

3,980

3,940

3,870

4,010

4,770

4,290

4,130

3,850

3,760

3,720

3,570

3,520

3,480

3,490

3,500

3,530

3,490

3,510

3,450

3,570

3,680

3,750

3,880

4,050

4,210

4,380

Maximum

5,86O

12 300

17)300

21,800

7,670

22 300

19 300 16)400

4 38O 5)740

4 330

4 330 5)300

22,300

June

4,660

4,930

5,420

5,500

5,330

5,210

5,760

6,490

6,180

6,740

6,610

5,800

5,170

4,950

4,77O

4,470

4,470

4,320

4,200

4,150

4,010

3,780

3,650

3,530

3,500

3,590

3,70O

3,680

3,760

3,960

-

Minimum

5,370

5,750

7,300

4,910

6,39O

5,300

6,580

3,420

3 43O

3)500

3,880

3,840

3,770

3,420

July

3,950

4,020

4,000

3,880

3,980

4,120

4, ISO

4,140

4,070

4,060

4,11O

4,150

4,270

4,330

4,320

4,220

4,150

4,140

4,130

4,240

4,180

4,170

4,120

4,100

4,150

4,170

4,200

4,200

4,230

4,290

4,330

Aug.

4,220 4,'

4, 4,'

>60

50O

'80

4,330

4,220

4,],"

,]

90

9O

50

,2OO

,240

,]

,]

4,1

90

30

00

4,120

4,090

3,!

3,£

3,E

80

50

40

3,840

3.84O

3,£

*,C

4,C

5O

OO

7O

4,080

4,010

3,£

3,£

4,C

3,£

6O

SO

70

80

4,020

Mean

5, 663

7 ,082

9,607

8,424

7,210

9 385 10)200

7 148

3,827

4,743

4,148

4,086

4,525

6,452

Sept.

4,090

4,17O

4,090

3,830

3,77O

3,820

3,870

3,830

3,890

4,130

4,420

4,830

5,170

5,30O

4,850

4,450

4,480

4,560

4,750

4,750

4,760

4,770

4,770

4,720

4,820

4,880

4,960

5,030

5,O2O

4,960

-

Runoff in 

acre-feet

348 200

42l)400

590,700

6,099,000

443,300

521,200

627 , 300

425,300

2 35 3OO

282)200

255,100

251,300

269,200

4,670,OOO

a Ho gage-height record 

1 mile upstream.

discharge computed on basis of unpublished record at Tisdale Weir about
306 SACRAMENTO RIVER MAIN STEM

Sacramento River at Knights Landing, Calif.

Location.- Water-stage recorder, lat. 38°48<10", long. 121°42'55", in KE^ sec. 14, T. 11 

N., 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 Premont Weir.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 194Y in reports of Geological Survey. 1939-47 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 21,100 second-feet Feb. 14; maximum gage height. 

S4.V5 feet Feb. 15; minimum discharge, 3,300 second-feet June 26 (gage height, 13.29 

feet).

1940-47: Maximum discharge, 27,900 second-feet Feb. 9, 1942; maximum gage height, 

41.83 feet Feb. 8, 1942.

1921-47: Minimum discharge recorded, 250 second-feet July 23, 1931 (gage height, 

7.80 feet).

Remarks.- Records good. Flow regulated by reservoirs above station and bypassing for 

flood control. Many diversions above station for irrigation; considerable return 

water. 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. Eighteen discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?,

3

4

- 5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

?4

25

26

XT

28

29

30

31

Oct.

6,320

6,320

6,360

6,290

6,370

6,290

6,230

6,300

6,380

6,340

6,240

6,130

5,950

5,850

5,880

5,820

5,920

5,900

5,910

5,980

6,000

6,040

6,000

6,190

6,270

6,310

6,220

6,200

6,070

6,160

6,090

Nov.

6,120

6,290

6,460

6,820

6,880

6,880

6,970

6,690

6,500

6,450

6,440

6,380

6,370

6,410

6,490

6,570

6,570

6,690

6,850

6,580

7,850

8,670

8,270

8,890

12,500

11,400

10,100

9,070

8,490

8,200

-

Dec.

7,980

7,660

7,620

7,750

9,980

13,900

16,600

18,100

15,500

13,900

12,900

11,700

10,900

10,500

9,970

9,670

9,300

9,120

8,770

8,640

8,590

8,380

8,240

8,290

8,110

8,180

8,190

8,210

8,080

8,200

8,070

Jan.

8,110

8,060

7,970

7,890

-7,910

7,880

7,810

7,790

7,760

7,770

7,720

7,840

7,770

7,730

7,780

7,740

7,720

7,670

7,750

7,660

7,580

7,460

7,560

7,570

7,580

7,540

7,060

6,770

6,680

6,700

6,790

Feb.

6,690

6,820

6,640

6,050

5,760

5,690

5,700

5,640

5,830

5,770

6,320

7,720

15,200

21,000

19,300

15,900

13,900

12,800

11,700

10,800

10,100

9,470

8,910

8,380

7,870

7,530

7,280

6,980

_

_

-

Month

December ....................................

Calendar year 1946 ......................

March. .....................................

April ......................................

May........................................

September ..................................

Water year 1946-47 ......................

Mar.

6,940

6,990

6,720

7,090

15,900

20,100

16,700

13,200

11,300

9,420

9,260

16,500

17,200

14,600

12,900

11,800

10,900

10,500

9,860

9,560

9,170

8,920

8,810

8,140

8,140

8,170

7,900

7,630

7,020

6,810

6,620

Apr.

8,460

10,500

9,920

13,100

16,600

14,200

12,500

11,300

10,400

9,640

9,260

8,590

8,090

7,550

6,960

6,320

5,780

5,240

4,610

4,400

4,040

3,860

3,810

3,670

3,440

3,310

3,320

3,380

3,340

3,410

-

Seoondfoot-daye

224 850

311,000

3,309,420

162,340

2,478,400

May

3,330

3,480

3,630

3,770

3,910

4,010

3,920

3,800

3,910

4,660

4,730

4,420

4,160

4,OOO

4,010

3,850

3,770

3,810

3,740

3,840

3,940

3,890

3,910

3,820

3,920

3,980

4,050

4,330

4,910

5,330

5,250

Maximum

18,100

22,500

5 330

6,200

21,000

June

5,530

5,810

6,080

6,280

5,940

5,720

5,900

7,030

6,790

7,230

7,410

6,550

5,860

5,400

5,240

4,870

4,700

4,620

4,400

4,290

4,210

3,860

3,650

3,540

3,420

3,310

3,490

3^590

3,620

3,740

 -

Minimum

7,620

5,310

4,620

3,310

July

3,790

3,830

3,960

3,810

3,890

4,030

4,180

4,250

4,180

4,130

4,280

4,340

4,380

4,490

4,520

4,520

4,400

4,350

4,270

4,360

4,310

4,280

4,270

4,150

4,260

4,330

4,360

4,360

4,400

4,450

4,420

Aug.

4,440

4,410

4,490

4,460

4,420

4,470

4,440

4,430

4,400

4,480

4,470

4,540

4,440

4,440

4,470

4,500

4,560

4,290

4,290

4,340

4,360

4,390

4,470

4,540

4,670

4,610

4,500

4,630

4,700

4,670

4,710

Mean

10,030

9,067

10 480

4 485

5,411

6,790

Sept.

4,790

4,890

4,890

4,720

4,620

4,650

4,780

4,820

4,870

5,120

5,470

5,820

6,060

6,2OO

5,990

5,730

5,670

5,650

5,800

5,760

5,700

5,620

5,570

5,490

5,550

5,580

5,660

5,710

5,610

5,550

-

Runoff in 

ao re-feet

377 500

616,900

6,564,000

467 300

434 400

275 800

322,000

4,916,000
SACRAMENTO RIVER MAIN STEM 307

Sacramento River at Verona, Calif.

Location.- Water-stage recorder, lat. 38°46'50", long. 121°36'15", in SE£ sec. 23, T. 11 

II. , 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 1947 (1926-29, low-water periods only). 

Average discharge.- 18 years (1929-47), 16,620 second-feet.

Extremes.- Maximum discharge during year, 47,000 second-feet Feb. 15 (gage height, 31.05 

reet ); minimum discharge, 3,910 second-feet June 26 (gage height, 9.89 feet).

1926-47: 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).

1934-47: 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 

now. When discharge is larger than about 55,000 second-feet, flow begins over Fremont 

weir (just upstream) into Yolo Bypass (see p. 388). Elevation of crest of Fremont weir 

is 33.5 feet (datum of Corps of Engineers).

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.

8,300

8,320

8,510

8,630

8,590

8,640

8,560

8,370

8,390

8,460

8,290

8,070

7,890

7,780

7,780

7,640

7,700

7,920

7,990

7,880

7,840

7,760

7,800

7,920

8,040

8,020

7,840

7,730

7,700

7,800

7,960

Nov.

8,120

7,990

7,990

8,290

8,320

8,360

8,390

8,220

7,960

7,840

7,760

7,680

7,680

7,890

8,040

8,120

8,240

8,300

8,510

12,200

16,400

14,200

13,300

20,400

22,400

18,800

15,600

13,600

12,400

11,600

-

Dec.

11,200

11,000

10,800

11,000

14,500

23,500

30,400

31,400

27,500

23,700

20,800

18,600

16,900

15,600

14,600

13,900

13, 300

12,800

12,400

12,000

11,900

11,700

11,500

11,400

11,500

11,700

11,700

11,900

12,000

11,600

11,300

Jan.

11,200

10,900

10,700

10,700

10,700

10,500

10,400

10,400

10,400

10,400

10,400

10,500

10,500

10,400

10,300

10,300

10,300

10,200

10,200

10,200

10,100

9,980

10,100

10,200

10,100

10,100

9,910

9,490

9,580

9,770

9,660

Feb.

9.660

9,630

9,240

8,760

8,640

8,750

8,780

8,900

8,S30

8,760

9,560

12,000

30,800

43,800

46,800

45,100

38,600

32,000

27,800

24,700

21,300

18,600

16", 600

15,000

14,000

13,200

12,600

12,300

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

llaroh. .....................................

Bay. .......................................

September . .................................

Water year 1946-47 ......................

Mar.

12,100

12,200

14,400

21,200

28,300

31,600

29,100

24,600

22,000

22,800

33,900

40,600

40,900

36,400

31,600

30,400

25,200

23,500

22,500

21,900

20,900

19,700

18,900

19,600

19,100

18,200

17,300

16,500

18,200

21,300

25,700

Apr.

28 , 000

28,100

26,900

28,900

31,900

30,300

27,300

25,200

23,500

22,400

21 , 000

19,600

18,500

17,300

16,300

15,700

15,200

14,900

13,8OO

12,800

11,800

11,300

10,900

10,000

9,360

8,800

8,360

7,860

7,620

7,700

-

Secondfoot-days

474,100

6,018,300

205,550

4,097,790

May

7,400

7,270

7,880

8,810

8,950

8,680

8,470

8,300

7,750

7,720

8,070

7,080

6,200

5,600

5,600

5,440

5,260

5,320

5,250

5,290

5,460

5,470

5,490

5.37O

5,300

5,440

5,470

5,720

6,230

6,700

6,900

Maximum

31,400

60.9OO

5 930

7,780

46,800

June

7,120

7,800

8,830

8,900

8,270

7,700

7,760

9,540

11,700

12,500

11,700

10,100

8,560

7,480

7,160

6,480

5,960

5,700

5,430

5,400

5,070

4,790

4,480

4,340

4,190

4,000

4,020

4,040

4,010

4,080

-

Minimum

7,640

10,800

6,110

9,490

8,640

12,100

7,620

5,250

5,500

4,000

July

4,320

4,300

4,430

4,410

4,350

4,600

4,660

4,740

4,770

4,630

4,830

4,770

4,950

4,900

5,090

5,000

5,050

4,900

4,980

4,980

5,190

5,000

4,880

4,830

4,940

5,140

5,080

5,190

5,070

5,140

5,160

Aug.

5,260

5,210

5,440

5,360

5,390

5,290

5,300

5,220

5,330

5,220

5,320

5,290

5,360

5,350

5,400

5,460

5,490

5,430

5,190

5,320

5,400

5,290

5,390

5,390

5,53O

5,400

5,330

5,460

5,5£0

5,630

5,930

Mean

8,068

15,290

16,490

10,280

18,740

23,890

17,710

6,577

6,904

4,848

6,852

11,230

Sept.

5.87O

5,750

5,710

5,640

5,5OO

5,60O

5,780

5,780

5,92O

3,020

6,400

6,860

7,270

7,720

7,760

7,680

7,750

7,780

7,730

7,720

7,560

7,350

7,170

7,140

7,380

7,540

7,410

7.4OO

7,320

7,040

-

Runoff in 

ao re-feet

496,100

643,800

940,400

11,940,000

631,900

1,041,000

1,469,000

1,054,000

404,400

410,800

298,100

331,100

407,700

8,128,000
308 PIT RIVER BASIN

Pit River near Canby, Calif.

Location.- Water-stage recorder, lat. 41°24', long. 120°55', in SW£ sec. 10, T. 41 N., R. 

9 S., 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 Goose Lake Basin.

Records available.- January 1904 to December 1905, May 1929 to September 1947 (1929-31 

incomplete).

Average discharge.- 16 years (1931-47), 199 second-feet.

Extremes.- Maximum discharge during year, 896 second-feet Feb. 14 (gage height, 4.26 

reet); minimum, 1.4 second-feet (regulated) May 1.

1904-5, 1929-47: 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, which are poor. Plow 

regulated by many small reservoirs. Diversions above station for irrigation.

Ratine table, water year 1946-47, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

2.0 2.0 2.5 47 3.2 3OO

2.1 4.6 2.6 6£

2.2 9.5 2.7 9E

2.3 17 2.8 12E

3.4 400

3.8 62O

4.2 860

2.4 3O 3.0 205

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.

7.2

6.7

5.8

5.4

5.O

5.4

9.9

67

85

67

62

35

21

31

74

49

49

67

62

49

51

54

54

67

72

82

77

77

58

58

62

Nov.

60

58

58

65

65

62

65

67

67

67

65

65

67

69

69

72

72

77

HO

119

144

166

580

290

158

158

119

158

104

92

-

Dec.

90

9O

87

136

171

265

275

241

184

151

132

116

110

110

104

98

92

b63

b68

b74

69

79

87

87

92

101

104

»b95

b95

b85

b70

Jan.

b60

b52

b44

b44

b46

47

49

51

56

58

62

62

b62

b54

b42

b42

b44

b46

b50

b56

58

 60

67

b87

blOO

b!40

b!50

b!50

b!30

b88

b95

Feb.

87

98

116

144

155

155

158

147

142

155

196

609

746

86O

752

482

255

184

158

136

116

98

101

92

90

79

79

77

_

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

74

85

140

232

175

192

184

162

171

285

290

325

196

129

101

90

87

85

77

77

72

60

65

62

56

44

35

38

40

40

45

Apr.

51

51

62

69

72

77

74

74

82

101

1

1

98

01

04

98

92

110 1 10

82

69

33

65

Secondfoot-days

1,475.4

3j 188

3,621

63,487.5

2 152

6,467

3,714

1,764.6

1,035.2

2,431.8

1,011.0

842.4

714.5

28,416.9

4O

11

5.8

6.7

6.7

5.8

5.0

4.6

4.0

-

May

2.8

2.4

7.2

11

11

24

33

53

37

45

72

69

30

16

26

40

14

9.5

8.9

8.9

9.5

10

25

73

85

87

74

51

37

33

30

Maximum

85

38O

275

968

150

860

325

110

87

147

69

82

860

June

3O

37

28

91

133

157

129

147

140

132

158

151

144

136

129

125

119

113

110

65

35

27

18

15

13

12

1O

9.5

8.3

1O

-

Minimum

5.0

58

63

2.9

42

77

35

4.0

2 « 4

8

-z * O

5 4

8 9

5.8

2.4

July

49

125

136

147

74

45

44

38

32

30

27

22

17

15

17

14

15

18

19

19

17

13

11

10

8.9

6.2

5.4

6.7

8.3

9.5

12

Aug.

21

18

18

18

17

16

24

45

69

62

67

67

51

51

44

32

26

23

21

18

16

14

14

14

13

13

11

11

10

9.5

8.9

Mean

47.6

106

117

174

69.4

231

120

58 »8

33.4

81 1

27 .2

Zs'.B

77.9

Sept.

8.3

7.2

6.2

5.8

11

42

82

77

77

49

38

30

26

23

21

19

18

17

16

15

14

14

14

13

13

12

11

11

12

12

-

Runoff in 

acre feet

930

6 , 320

7,180

125,900

4,270

12 j830

7,370

3>5OO

2,050

4,820

2.O10

1,670

1,420

56 , 370

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
PIT JVfVER BASIN 309

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.

5 E., 0.8 mile downstream from Fall River and town of Fall River Mills. Altitude 01'

gage, about 3.235 feet (from topographic map). 

Drainage area.- 4,150 square miles, excluding Goose Lake Basin. 

Recorgs available.- December 1922 to September 1947. March 192'l to December 1922 at

site 0.7 mile upstream.

Average discharge.- 24 years (1923-47), 455 second-feet (excluding flow of Fdll River). 

Extremes.- Maximum discharge during year, 3,210 second-feet Feb. 14 (gage height, 4.23

feet); minimum, 52 second-feet May 22,

1921-47: 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 Avd studies; minimum, 12 second-feet Aug. 5, 1926, Oct. 23, 1936. 

Remarks.- Records good except those for periods of ice-effect or no gage-height record,

which are fair. Fall River is diverted through Pit No. 1 powerhouse and returned to

Pit River below station. Many small reservoirs and diversions above station for

irrigation. River receives return flow from McArthur, Knoch, and other diversions

above station. 

Cooperation.- Water-stage recorder graph furnished by Pacific Gas & Electric Co.

Rating table, water year 1946-47, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

0.4 53 1.4 298

.5 66 1.7 435

.7 98 2.0 604

.9 139 2.4 885

1.1 192 2.8 1,230

3.2 1,670

3.6 2,200

4.0 2,820

4.3 3,330

Discharge, in second-feet, water year October 1946 tc Septenber 1947

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.

130

128

139

139

135

130

130

128

130

132

132

124

189

192

167

164

135

124

135

126

139

149

142

135

132

132

132

137

144

156

156

Nov.

146

139

137

137

137

137

139

139

139

139

139

137

144

146

139

156

159

159

195

228

242

252

327

430

592

451

340

271

323

290

-

Dec.

259

228

228

425

562

810

677

677

598

505

415

349

315

298

278

267

248

205

192

186

192

a200

a210

a220

a220

a240

263

267

242

a210

a!70

Jan.

also

a!30

b!20

allO

allO

a!20

a!20

a!30

a!30

144

154

a!60

a!60

al50

a!40

a!30

b!30

b!30

a!40

a!40

a!50

alSO

alSO

h!59

a!90

a250

a3SO

a 350

a350

a330

h290

Feb.

256

238

259

a280

a320

a330

h340

a350

a350

a380

aSOO

a2,000

a2,700

3,090

2,120

1,620

1,310

949

650

527

456

401

363

332

315

294

275

267

_

_

-

Month

October. ...................................

Ncvenber. ..................................

December. ...................................

Calendar year 1946 ......................

January

February. ..................................

March. .....................................

April.......... ............................

May. .......................................

June .......................................

July. ......................................

August .....................................

Septenber. .................................

Water year 1946-47 ......................

Mar.

259

259

298

432

747

733

611

562

538

533

803

1,160

999

803

604

505

430

372

336

323

298

739

1,440

1,460

1,550

1,460

1,420

1,400

1,370

1,360

1,530

Apr.

1

Secondf cot-days

4,363

6,509

10,156

159,185

5,397

21,272

25 334

10^389

2,734

3,982

2, ,6 32

2,480

2,511

97,759

,530

984

415

435

440

440

440

410

386

391

396

622

562

340

327

271

248

208

152

149

162

156

154

135

137

128

124

91

78

78

-

May

78

83

242

133

96

83

68

78

80

86

80

76

68

65

79

96

81

80

80

78

62

65

68

81

91

75

81

91

106

98

106

Maximum

192

592

810

2,790

350

3,090

1,550

1,530

242

276

126

106

103

3,090

June

115

117

115

111

100

106

106

106

108

111

142

245

195

146

121

119

124

130

146

121

106

276

237

162

142

117

95

72

91

100

-

Minimum

124

137

170

69

110

238

259

78

62

72

62

66

69

62

July

91

95

84

78

80

72

75

111

126

126

117

95

.109

98

78

74

74

65

62

65

68

80

66

84

90

80

78

75

69

83

84

Aug.

Mean

141

217

328

436

174

760

817

546

88.2

133

84.9

80.0

83.7

268

75

90

98

84

69

70

69

88

70

66

68

78

78

83

81

69

78

81

93

78

74

81

106

96

83

76

80

72

88

80

78

Sept.

JS

90

90

86

81

81

78

69

103

93

80

75

74

74

72

75

83

80

81

83

95

83

91

93

88

84

84

83

83

83

Runoff in 

acre-feet

8,650

12,910

20,140

315,700

10,700

42,190

50,250

20,610

5,420

7,900

5,220

4,920

4,980

193,900

a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for station near Canby.

b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading.

854211 O - 49 - 21
310 PIT RIVER BASIN

Pit River below Pit No. 4 Dam, Calif.

Location.- Water-stage recorder, lat. 40°59", long. 121°47', in SW£ sec. 17, T. 36 N., 

Fmn?., 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 riverprofile map).

Drainage area.- 4,860 square miles, excluding Goose Lake Basin. 

Records available.- July 1927 to September 1947.

Average discharge.- 36 years (1911-47), 2,594 second-feet. Period 1911-27 extrapolated 

on oasis or records for Pit River at Big Bend.

Extremes.- Maximum discharge during year, 6,540 second-feet (regulated) Feb. 13 (gage 

 height, 10.28 feet); minimum, 476 second-feet (regulated) Jan. 19.

1927-47: 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 (regulated) Apr. 15, 1945.

Remarks.- Records excellent. Flow regulated by reservoirs and power plants above station. 

Many diversions 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 1946-47 (gage helenc, In feet, 

and discharge, In second-feet)

6.1 630 7.3 1,680

6.4 850 7.6 2,000

6.7 1,100 8.0 2,490

7-0 1,380 8.5 3,180

9.0 4,020

9.5 4,970

10. 0 5,950

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

Z

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,960

1,950

2,010

1,930

1,730

1,360

1,950

1,950

2,050

2,040

2,110

1,900

1,390

2,180

2,330

2,020

2,090

2,040

1,910

1,430

2,060

2,140

2,150

2,230

2,070

2,070

1,530

2,220

2,070

2,180

2,160

Nov.

1,930

1,780

1,720

2,060

1,970

2,040

2,070

2,040

1,760

2,040

1,950

2,250

2,220

2,020

2,200

1,940

1,460

2,160

2,360

2,350

2,760

2,500

2,280

2,190

2,490

2,670

2,660

2,080

2,520

2,400

-

Dec.

1,850

2,270

2,400

2,500

2,620

2,720

2,790

2,760

2,690

2,700

2,690

2,360

2,270

1,970

1,650

2,110

2,210

2,390

2,350

2,300

2,120

1,690

2,300

2,280

1,520

2,360

2,480

2,470

2,050

2,170

2,340

Jan.

1,970

2,370

2,270

2,230

1,420

2,200

2,400

2,230

2,270

2,130

1,740

1,460

2,030

2,120

2,210

2,460

2,580

2,100

1,020

2,250

2,280

2,310

2,340

2,220

1,790

1,550

2,190

2,400

2,630

2,500

2,540

Feb.

Z , 510

1,520

2,300

2,2~r

2,260

2,250

2,140

1,800

1,540

2,260

2,390

2,790

3,990

5,310

4,950

3,840

3,980

3,570

3,350

2,850

2,610

2,570

1,870

2,220

2,380

2,300

2,410

2,530

_

_

-

Month

October. ...................................

November . ........................ .........

December. ..................................

Calendar year 1946 ......................

January .................................. .

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ...... ...............

Mar.

2,500

1,910

2,880

3,030

2,460

2,860

2,890

3,000

2,310

2,860

2,860

3,080

3,310

3,490

3,530

2,790

2,420

2,880

2,590

2,620

2,680

1,960

1,750

2,670

2,690

2,750

2,820

2,760

2,220

2,450

2,830

Apr.

2

2

3

3

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

1

2

2

2

2

1

1

2

2

2

Second 

foot-days

61,210

64,870

71,380

914,330

66,210

76,780

83,850

57^210

58,320

57 , 542

55,157

54,527

780,206

,670

,800

,110

,200

,920

,580

,480

,540

,590

,610

,610

,480

,250

,620

,630

,570

,660

,560

,560

,470

,990

,020

,040

,080

,200

,840

,650

,110

,160

,150

-

May

2,210

2,100

1,520

1,040

1,800

1,890

1,900

1,810

1,930

1,810

1,350

1,920

1,960

2,020

2,050

2,190

1,900

1,680

2,010

2,090

2,020

1,890

2,020

1,390

1,340

2,010

2,000

2,140

2,080

1,550

1,590

Maximum

2,330

2,760

2,790

6,300

2,630

5,310

3,530

3,200

2 210

2|260

2 , 290

2, '300

5,310

June

1,860

2,010

2,030

2,180

2,160

2,O6O

1,820

1,300

2,170

2,230

2,160

2,180

2,240

1,810

1,340

2,200

2,260

2,180

2,110

2,000

1,280

1,270

2,050

2,230

2,140

2,010

2,080

1,540

1,220

2,200

-

Minimum

1,360

1,460

1,520

1,190

1,020

1,520

1,750

1,650

1,040

1,220

858

665

679

665

July

2,240

2,060

2,020

1,190

1,450

1,410

2,140

2,150

2,240

1,980

2,150

1,260

1,080

2,110

2,180

2,200

2,240

2,260

970

858

2,100

2,280

2,260

2,200

1,910

1,150

874

2,130

2,290

2,020

2,140

Aug.

2,220

1,3

1

2,C

90

29

10

2,240

2,280

2,3

2,Ci

70

70

06

665

2,100

2,2

2,2

2,1

90

10

30

2,130

1

£

2,C

2,1

98

79

90

30

2,070

1,990

l,£

1,£

1,1

20

50

30

2,100

2,220 2,;

2,2

2,1

1,2

AO

50

60

10

1,280

Mean

1,975

2,162

2,303

2,505

2,136

2,742

2,705

2,438

1,845

1,944

1,856

1,779

1,818

2,138

Sept.

1,270

2,240

2,210

2,170

2,220

1,100

679

1,970

2,100

2,160

2,270

2,260

1,110

935

2,040

2,080

2,140

2,100

2,040

1,300

1,100

2,120

2,300

2,290

2,190

2,000

798

785

2,290

2,260

-

Runoff in 

acre-feet

121,400

128,700

141,600

1,814,000

131,300

152,300

166,300

145,100

113,500

115,700

114,100

109,400

108,200

1,548,000
PIT RIVER BASIN 311

Pit River at Big Bend, Calif.

Location.- Water-stage recorder, lat. 41°01', long. 121°5fa', In sec. 31, T. 37 N., R. 

IE., at settlement of Big Bend, 0.5 mile 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. 

Records available.- September 1910 to September 1947.

Extremes.- Maximum discharge during year, 3,800 second-feet (regulated) Feb. 13 (gage 

neignt, 9.19 feet); minimum, 54 second-feet (regulated) Nov. 5, 6, 9, 17, Feb. 4 

height, 4.22 feet).

1910-47: 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 cf velocity-area 

studies; minimum, 51 second-feet Aug. 24, 27, 1944 (after diversion-to Pit No. 5 

powerhouse).

Remarks.- Records good. Flow regulated by reservoirs and power plants above station. 

Many diversions above station; diversion to Pit No. 5 powerhouse began May 1, 1944. 

For record closely comparable with previous record of total flow at Big Bend see Pit 

River below Pit No. 4 Dam on preceding page.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

4.2 52 5.0 166 6.2

4.4 74 5.3 228 6.5

4.6 101 5.6 303 6.8

4.8 131 5.9 400 7.1

535 7.4 1,380

700 7.8 1,770

900 8.2 2,260

1,140 8.6 2,840

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.

67

66

68

66

66

66

66

66

64

64

66

64

64

66

66

66

69

66

63

64

64

78

67

66

66

64

64

66

66

66

66

Ncv.

63

63

64

63

62

61

62

63

62

62

63

63

63

62

61

61

62

93

147

88

79

200

176

100

87

82

79

75

74

73

Dec.

70

68

83

104

102

112

101

97

90

86

84

80

77

74

72

72

69

72

69

69

67

67

67

70

69

69

74

72

70

69

68

Jan.

66

67

67

68

67

66

64

64

64

64

63

64

64

64

64

66

66

64

250

79

70

69

70

68

69

70

69

74

70

73

72

Feb.

69

66

68

60

61

63

62

63

67

79

101

314

1,380

2,300

1,870

1,210

947

552

342

187

88

82

78

75

74

74

104

93

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

Hay. .......................................

June .......................................

July..... ..................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

95

201

303

338

181

157

145

143

205

329

262

221

200

329

480

1,260

177

159

150

143

138

145

141

133

126

123

120

120

129

220

202

Apr.

1

Secondfoot-days

2,046

2,413

2,413

198,419

2,275

10,529

7,075

6 668

4 686

4^836

4 193 4)070

3,935

55,341

181

191

189

286

,380

997

320

159

153

145

141

138

134

133

131

128

126

125

121

117

115

112

111

108

112

141

162

170

174

168

-

May

166

166

164

168

166

162

162

166

166

161

161

164

157

157

157

157

157

153

155

150

152

148

153

153

150

152

155

155

148

148

159

Maximum

78

200

112

5,330

250

2,300

1,260

1 360

166

210

141

140

136

2,300

June

172

164

159

153

172

179

198

210

196

179

172

172

162

162

161

161

162

152

152

152

148

150

146

145

145

145

143

143

141

140

-

Minimum

63

61

67

61

63

60

95

106

148

140

128

123

126

60

July

138

138

134

138

134

131

140

138

133

141

141

140

136

140

136

134

138

136

134

136

140

138

129

131

128

128

131

134

134

134

128

Aug.

131

131

134

131

129

 129

131

131

134

133 -

134

136

133

129

128

128

134

136

129

131

131

128

128

123

131

129

129

131

140

134

134

Sept.

131

134

131

134

134

128

128

133

128

129

128

131

136

134

136

133

131

129

129

128

126

128

129

133

133

131

 133

131

133

133

-

 ,, _, Runoff in 

Mean acre-feet

66.0 4,060

80.4 4,790

77.8 4,790

544 393,500

73.4 4,510

376 20,860

228 14,030

222 13 230

158 9^700

161 9,590

1 35 8 r 320

131 8,070

131 7,800

152 109,800
312 PIT RIVER BASIN

Pit River near Montgomery Creek, Calif.

Location.- Water-stage recorder, lat. 40°51', long. 121°59', in NE^ sec. 32, T. 35 N., 

R. i w., i mile upstream from Cow Canyon Creek and 3.5 miles west of town of Montgomery Creek. Datum of gage is 1,075.00 feet above mean sea level (levels by Bureau 

of Reclamation.)

Drainage area.- 5,170 square miles, excluding Goose Lake Basin. 

Records available.- December 1944 to September 1947.

Extremes.- Maximum discharge during year, 8,660 second-feet (regulated) Feb. 13 (gage 

height, 6.83 feet); minimum, 640 second-feet (regulated) Jan. 19.

1944-47: Maximum discharge, 18,600 second-feet (regulated) Dec. 28, 1945 (gage 

height, 10.14 feet'); minimum 570 second-feet (regulated) Oct. 21, 1945.

Remarks.- Records excellent. Plow regulated by reservoirs and power plants above station. 

Many diversions above station for irrigation. When Shasta Reservoir is full, this 

station will be Just upstream from it.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

2.3 780 4.5

2.6 1,020 5.0

3.0 1,410 5.5

3.5 1,980 6.0

4.0 2,640 6.5

3,430

4,320

5,390

6,560

7,800

Discharge, in second-feet, water year October 1946 tc 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.

2,190

2,190

2,280

2,200

1,860

1,540

2,24O

2,180

2,260

2,260

2,340

2,080

1,540

2,360

2,560

2,240

. 2,280

2,280

2,160

1,630

2,260

2,460

2,370

2,420

2,360

2,290

1,740

2,350

. 2,350

2,420

2,360

Ncv.

2,260

1,920

1,910

2,330

2,200

2,220

2,280

.2,300

1,880

2,240

2,220

2,370

2,480

2,280

2,360

2,240

1,600

2,420

3,260

2,760

3,040

3,840

3,940

2,680

2,880

3,080

3,000

2,360

2,770

2,740

-

Dec.

2,270

2,440

2,830

3,160

3,240

3,580

3,420

3,390

3,250

3,100

3,120

2,760

2,600

2,310

1,960

2,520

2,470

2,740

2,630

2,630

2,500

1,910

2,550

2,560

1.S30

2,520

2,810

2,780

2,340

2,560

2,450

Jan.

2,150

2,550

2,550

2,450

1,610

2,400

2,610

2,380

2,490

2,390

1,900

1,740

2,260

2,360

2,440

2,65O

2,710

2,370

1,210

2,570

2,490

2,520

2,521

2,340

1,910

1,790

2,380

2,530

2,760

2,660

2,740

Feb.

2,690

1,720

2,570

2,530

2,530

2,470

2,500

2,170

1,880

2,840

3,340

6,610

6,840

7,000

6,270

4,980

5,070

4,500

4,160

3,670

3,370

3,150

2,370

2,700

2,860

2,790

3,020

3,150

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February

March. .....................................

April... ...................................

MBIT aay. .......................................

June .......................................

July. ......................................

August ...... ................................

September. .................................

Water year 1946-47 ......................

Mar.

3,140

3,480

7,140

5,950

4,300

4,240

4,300

4,260

4,350

7,580

5,980

5,480

5,330

5,120

5,180

4,210

3,840

4,200

3,780

3,590

3,670

3,020

2,650

3,740

3,500

3,600

3,580

3,560

3,060

4,440

5,070

Apr.

4

4

4

4

4

3

4

3

3

3

3

3

3

3

3

3

3

3

3

3

2

2

2

2

2

2

2

2

2

2

Seccndfoot-days

68,050

75,860

83,230

1,199,670

72,420

99,750

135,340

102,110

71,260

75,400

64,810

61,116

60,736

970,082

,270

,650

,94O

,78o

,120

,850

,OOO

,720

,770

,700

,570

,350

,130

,390

,460

,430

,400

,430

,340

,260

,640

,*20

,710

,770

,720

,400

250

730

810

740

May

2,730

2,740

2,030

1,550

2,330

2,500

2,320

2,240

2,430

2,310

1,700

2,450

2,500

2,430

2,470

2,560

2,550

1,900

2,530

2,580

2,470

2,270

2,290

1,820

1,650

2,420

2,430

2,620

2,48O

1,950

2,010

Maximum

2,560

3,940

3,580

11,200

2,760

7,000

7,580

4,940

2,740

3,610

2,600

2,510

2,560

7,580

June

2,400

2,520

2,550

2,560

2,820

2,930

2,720

2,470

3,610

3,140

2,930

2,860

2,960

2,330

1,850

2,670

2,810

2,660

2,530

2,480

1,590

1,600

2,540

2,640

2,520

2,400

2,400

1,820

1,390

2,700

Minimum

1,54C

1.60C

1.83C

1,37C

1.21C

1,72C

2.65C

2, ESC

1,55C

1,39C

1.04C

792

914

792

July

2,600

2,360

2,240

1,430

1,770

1,580

2,340

2,560

2,500

2,160

2,400

1,460

1,300

2,390

2,430

2,440

2,560

2,440

1,120

1,040

2,310

2,540

2,400

2,390

2,330

1,150

1,080

2,250

2,530

2,400

2,310

Aug.

2,380

1,

2,

240

J84

520

2,440

2,510

2,'

2,.

M

120

510

)60

850

2,300

2,4

2,4

2,-

180

170

560

2,260

1,020

2,4

2,1

r92

100

S80

2,280

2,180

2,3 i,;

1,Z

50

S30

40

2,390

2,380

2,4

2,E

2,4

1,1

90

10

00

40

1,380

Mean

2,195

2,529

2,685

3,287

2,336

3,562

4,366

3,404

2,299

2,513

2,091

1,971

2,025

2,658

Sept.

1,470

2,380

2,400

2,430

2,400

1,260

914

2,220

2,320

2,310

2,500

2,500

1,180

998

2,400

2,270

2,400

2,380

2,250

1,490

1,380

2,430

2,560

2,560

2,380

2,050

964

1,000

2,430

2,510

Runoff in 

acre-feet

135,000

150,500

165,100

2,380,000

143,600

197,900

268,400

202,500

141,300

149,600

J.28,500

121, 200

120,500

1,924,000
PIT RIVER BSSIN 

South Pork Pit River near Likely, Cfalif.

313

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 S.5 miles east of Likely. Altitude of gage, about 4,580 feet (from topographic map), j

Drainage area.- 248 square miles.

Records available.- October 1928 to September 1947.

Extremes.- Maximum discharge during year, 156 second-feet [Tune 9 (gage height, 2.-9S feet); 

minimum, 6.2 second-feet (regulated) Sept. 11. i

1928-47: Maximum discharge, 1,060 second-feet Apr. E7, 1932 (gage height, 5.55 

feet), from rating curve extended above 600 second-feet; minimum, 0.2 second-foot 

(regulated) Feb. 3, 1941.

Remarks.- Records excellent except those for pf:;'iods of ic^ effect, which are fair. F 

regulated by West Valley Creek Reservoir. Diversions apove station for irrigation.

Rating table, water year 1946-47, except periods of ice effect 

(gage heigh*, in feet, and discharge, in second-feet)

Flow

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.6 

2.8 

3.0

91

122

160

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 a

3

4

8

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26a?

!!8

29

30

31

Oct.

39

44

58

55

54

43

28

27

25

26

25

25

23

2O

22

23

28

30

30

29

31

35

39

34

31

3O

28

27

25

26

26

Nov.

31

27

25

25

25

28

28

27

27

27

28

27

27

28

36

31

30

30

38

32

33

39

39

34

31

30

28

27

29

30

-

Dec.

29

27

27

33

40

42

35

34

32

27

29

31

30

30

30

26

b25

b24

b30

b33

34

b32

b30

b28

26

25

 24

b23

b22

b22

b21

Jan.

b21

b2O

b!9

b!9

b20

b21

21

22

24

27

27

b27

bZ6

.25

b!9

b!8

b!9

b2O

b22

b25

*27

27

26

28

29

33

b33

b30

b26

b26

b27

Feb.

27

28

30

34

35

38

40

36

37

40

35

56

53

42

38

36

34

32

30

3O

27

28

28

28

28

27

30

28

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

April ......................................

May. .......................................

July

September. .................................

Water year 1946-47 ......................

Mar.

26

27

28

31

27

25

30

30

29

29

31

27

28

29

30

33

36

39

4O

41

40

41

44

4O

37

34

37

35

35

33

31

Apr.

27

27

30

29

56

81

82

97

1O4

87

68

66

57

41

46

57

77

117

119

117

111

98

96

92

87

84

87

82

84

87

-

Secondfoot-days

901

27,367

693

17,461

J±-l91

94

103

102

92

86

83

78

104

92

83

72

67

60

59

66

66

63

66

71

83

loo

102

102

103

103

120

127

73

86

127

Maximum

58

42

398

119

127

14.4.

152

54

152

June

98

76

65

59

82

111

98

96

144

114

91

79

63

6O

56

63

78

58

47

40

39

36

44

59

58

56

53

55

54

38

Minimum

2C

2£

2]

1C

IE

Zl

2E2'

5J

36

1C

4£

1C

1C

July

21

17

19

22

20

19

17

11

12

10

12

13

14

14

13

11

14

36

58

76

81

81

81

74

71

73

74

72

71

104

102

Aug.

88

87

83

83

88

1OO

126

124

124

124

131

152

152

142

133

131

129

127

105

47

46

51

54

53

53

53

53

54

56

57

56

Mean

) 31.8

29.1

75.0

24.3

34.1

76.4

87.9

69. 0

) 42.4

92.3

) 22.8

47.8

Sept.

54

54

46

31

30

30

32

32

33

26

10

16

16

16

16

16

17

17

19

19

19

18

17

16

17

17

12

12

12

12

-

Runoff in 

acre-feet

1,960

1,780

1,790

54,3OO

1,500

1,890

2,030 '

4.55O

5,400

4,110

2,6OO

5,680

1,350

34,640

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
314 PIT RIVER BASIN

Hat Creek near Hat Creek, Calif.

Location.- Water-stage recorder, lat. 40°41', long. 121°26', in SE£ sec. 28, T. 33 N., R. 

5 ji. , 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 1947. July 1926 to April 1928 at site 0.5 

mile upstream.

Average discharge.- 20 years (1926-29, 1930-47), 119 second-feet.

Extremes.- Maximum discharge during year, 226 second-feet June 8 (gage height, 2. 86 feet); 

minimum, 100 second-feet July 29, 30.

1926-47: Maximum discharge, 2,500 second-feet Dec. 11, 1937 (gage height, 7.76 

feet, in gage well, affected by draw-down), by slope-area method; minimum, 67 secondfeet Sept. 7, 1934.

Remarks.- Records excellent. Small diversions above station for irrigation.

Rating table, water year 1946-47 (gage height. In feet, 

and discharge, In seoond-feet)

2.2 92 2

2.3 106 2

2.4 122 2

2.5 141

6 163

7 187

8 213

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.

120

122

122

122

122

122

122

122

122

122

122

122

124

124

124

124

124

124

124

124

124

130

128

126

124

122

119

119

119

120

120

Nov.

120

122

124

126

126

128

126

126

124

124

122

122

124

126

122

124

124

128

159

133

128

145

182

143

137

135

133

132

132

130

-

Dec.

128

128

132

137

133

132

130

132

128

128

130

128

128

128

128

128

126

124

126

130

132

132

' 128

128

128

126

124

117

119

117

116

Jan.

119

117

116

116

116

117

117

117

119

119

119

119

117

117

116

116

116

117

117

119

119

119

119

119

119

134

119

117

116

117

119

Feb.

119

119

119

119

119

119

119

119

119

119

122

177

150

137

130

128

126

126

124

124

122

122

122

122

122

120

120

120

_

_

-

Month

October. ...................................

November. ........................ .........

December . ..................................

Calendar year 1948 ......................

January. ................................. .

February ........................ ..........

March. .....................................

April. .....................................

May. .......................................

June .......................................

July.. ............ ........................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

120

122

119

120

120

120

122

122

120

126

124

122

122

122

122

122

122

122

124

124

126

128

132

126

126

122

122

124

128

130

126

Apr.

Secondfoot-days

3,805

3,927

3,951

49,565

3,653

3,504

3,827

4,024

4,707

4,037

3,428

3,439

3,377

45,679

126

128

126

122

124

124

124

124

122

122

122

124

126

130

135

141

143

141

143

143

143

139

141

141

141

143

143

143

148

152

-

May

159

175

180

173

168

170

168

163

156

152

150

150

148

148

148

150

148

148

148

148

152

150

141

141

139

139

141

137

137

137

143

Maximum

130

182

137

218

124

177

132

152

180

195

119

116

114

195

June

154

159

141

137

145

145

163

195

168

148

141

139

135

133

124

122

126

120

119

119

122

122

120

120

120

119

120

122

120

119

-

Minimum

119

120

116

115

116

119

119

122

137

119

102

103

108

102

July

119

119

114

108

106

105

105

105

105

111

114

114

112

114

114

114

114

114

114

111

112

112

109

109

109

109

108

106

102

108

112

Aug.

114

112

112

112

112

116

116

114

112

111

106

106

106

105

103

103

105

108

112

112

114

114

114

112

112

112

112

112

114

114

112

Sept.

Ill

111

111

112

111

108

109

114

114

114

114

112

112

112

112

112

112

114

114

114

114

114

112

112

112

114

114

114

114

114

-

Mean Runoff in *ean aore-feet

123 7,550

131 7,790

127 7,840

136 98,310

118 7,250

125 6,950

123 7,590

134 7,980

152 9,340

135 8,010

111 6,800

111 6,820

113 6,700

125 90,620
PIT RIVER BASIN 315

Squaw Creek above Shasta Reservoir, Calif.

Location.- Water-stage recorder, lat. 40°51', long. 122°07|', in SW£ sec. 29, T. 35 N., R. 

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 1947.

Extremes.- Maximum discharge during year, 3,470 second-fe^t Mar. 3 (gage height, 13.48 

reel;); minimum, 12 second-feet Oct. 1, 12-15.

1944-47: Maximum discharge, 6,150 second-feet Dec. 27, 1945 (gage height, 16.00 

feet); minimum, 12 second-feet Sept. 22 to Oct. 1, Oct 4 12-15, 1946.

Remarks.- Records excellent. No diversions.

Rating -table, vater year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

5.8 10 6.6 48 8.3 290 1O.5 1,210 

5.9 13 6.9 70 8.7 396 11.0 1,510 

6.0 16 7.2 100 9.1 545 12.0 2,220 

6.1 20 7.5 138 9.5 720 13.0 3,040 

6.3 30 7.9 206 10.0 950

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.

13 

14 

15 

15 

14

14 

13 

14 

13 

13

13 

12 

12 

12 

12

13 

14 

15 

14 

14

15 

31 

23 

16 

15

15 

14 

14 

14 

15 

15

Nov.

15 

14 

14 

14 

14

14 

15 

14 

14 

14

14 

14 

14 

14 

14

15 

15 

41 

323 

89

52 

591 

683 

168 

97

73 

61 

54 

48 

44

Dec.

41 

40 

47 

111 

102

2OO 

188 

159 

132 

108

93 

81 

72 

66 

61

56 

53 

49 

47 

46

44 

42 

40 

40 

40

39 

38 

36 

35 

34 

33

Jan.

32 

31 

30 

30 

29

28 

28 

28 

28 

27

26 

27 

28 

28 

25

25 

26 

25 

24 

24

24 

24 

24 

24 

24

26 

24 

33 

30 

32 

32

Feb.

31 

31 

32 

37 

41

43 

45 

38 

47 

77

125 

2,070 

1,020 

473 

317

302 

272 

232 

199 

183

152 

135 

122 

112 

105

100 

177 

160

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Da

ber. ...................................

niber.. .................................

lender year 1946 

ary . 

1.. ....................................

ember ..................................

ter year 1946-47 ......................

Mar.

160 

705 

2,930 

1,560 

864

590 

448 

378 

683 

2,400

1,300 

846 

657 

505 

420

361 

324 

292 

264 

240

222 

218 

195 

179 

167

157 

149 

152 

160 

505 

652

Apr.

462 

430 

473 

448 

406

358 

322 

297 

275 

250

230 

214 

201 

190 

177

167 

159 

149 

141 

132

127 

122 

117 

112 

107

104 

99 

98 

96 

92

Secondf cot-days

456 

2,566 

2,173

47,019

846 

6,678 

18,683 

6,555 

1,931 

3,740 

1,091 

638 

457

45,814

Mfy

89 

85 

83 

80 

77

75 

74 

73 

74 

68

67 

65 

64 

62 

60

58 

56 

54 

51 

52

50 

48 

47 

46 

45

44 

48 

53 

46 

55 

82

Uaximua

31

683 

200

2,05^

3, 

2.07C 

2.93C 

47! 

8< 

45 

4< 

2' 

11

2,93<

Peak discharge.- Feb. 12 (1:30 p.m.) 2.950 sec. -ft.: Mar. 3 (

)

June

111 

88 

66 

58 

123

151 

214 

457 

413 

264

201 

162 

138 

122 

111

107 

99 

90 

84 

78

73 

69 

66 

63 

61

58 

56 

54 

53 

50

Minimum

12 

14 

33

12

24 

31 

149 

92 

44 

50 

26 

17 

14

12

July

49 

47 

46 

46 

44

43 

42 

40 

40 

38

38 

38 

37 

36 

35

34 

33 

34 

32 

31

30 

29 

29 

28 

28

27 

29 

29 

27 

26 

26

Aug.

24 

24 

24 

24 

24

24 

23 

24 

24 

23

22 

22 

21 

20 

20

19 

19 

18 

18 

18

19 

20 

19 

18 

17

17 

17 

18 

19 

20 

19

Sept.

18 

17 

16 

16 

16

16 

18 

18 

18 

16

16 

15 

15 

15 

14

14 

14 

15 

15 

15

14 

14 

14 

14 

14

14 

14 

14 

14 

14

,. Runoff in "ean acre-feet

14.7 904 

85.5 5,090 

70.1 4,310

129 93,250

27.3 1,680 

238 13,250 

603 37,060 

218 13,000 

62.3 3,830 

125 7,420 

35.2 2,160 

20.6 1,270 

15.2 906

126 90,880

5:30 a.m.) 3,470 sec. -ft.; Mar1. 10
316 PIT RIVER BASIN

MoCloud River near McCloud, Calif.

Location.- Water-stage recorder, lat. 41°11', long. 122°04', in NE£ sec. 34, T. 39 N., 

K. 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 (revised). 

Records available.- April 1931 to September 1947. 

Average discharge.- 16 years, 836 second-feet.

Extremes.- Maximum discharge during year, 1,370 second-feet June 8 (gage height, 2.21 

reet); minimum, 698 second-feet Aug. 31 and on several days in September.

1931-47: 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 velocity-area 

and Ax/T studies; minimum, 524 second-feet Nov. 23, 24, 1932.

Remarks.- Records excellent. Two small diversions above station for irrigation.

Rating tables, water year 1946-47 (gage height. In feet, 

and discharge, In second-feet)

Oct. 1 to Nov. ZZ

1.1 695

" 1.3 790-

1.5 895

Nov. 23 to Sept. 30

1.0 

1.2 

1.4

670

754

853

1.6 965

1.8 1,085

2.1 1,290

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.

755

755

755

750

750

750

750

750

750

745

745

745

745

745

745

745

750

745

745

745

745

755

740

740

740

740

740

736

736

736

736

Nov.

736

736

736

736

736

736

736

736

736

736

736

736

736

736

736

736

736

765

805

760

755

884

1,190

896

817

792

778

773

768

764

-

Dec.

764

764

768

773

788

797

788

778

768

764

764

759

759

759

754

750

750

745

750

750

750

745

745

745

750

750

750

745

745

741

741

Jan.

741

736

732

736

736

736

736

736

732

736

732

732

732

732

728

728

732

728

728

728

728

728

728

728

728

728

732

736

732

728

723

Feb.

723

723

723

723

723

723

728

723

732

736

745

965

1,030

925

875

875

853

828

812

802

792

783

783

778

773

773

773

778

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

Maroh. .....................................

April....... ...............................

May. .......................................

June. ......................................

July. ......................................

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

778

822

864

853

828

812

802

792

812

930

983

919

885

875

875

875

880

885

891

891

885

885

913

891

875

869

858

864

913

1,090

1,110

Apr.

1,040

1,010

989

953

924

907

891

880

869

858

848

843

848

858

869

880

896

885

880

880

864

853

848

843

838

838

843

843

843

843

Secondfoot-days

23 109

23)259

23,499

318j £33

22,676

22,200

27 405

26, 464

24,607

26,112

22, 888

29 971

21,' 104

285,294

May

843

853

853

848

838

828

822

817

817

807

797

792

788

788

783

783

783

778

778

773

773

773

768

768

764

759

759

759

759

773

783

Maximum

755

1,190

797

1,300

741

1,030

1,110

1,040

853

1,260

759

719

710

1,260

June

864

942

848

817

869

989

1,010

1,260

1,220

1,040

959

913

880

853

838

838

833

812

802

797

788

783

778

778

773

773

768

764

764

759

Minimum

73

73

74

73

72* 72'

771

83'

75E

755

71£

691

S9£

698

July

759

754

754

754

754

754

750

750

745

745

745

745

741

736

732

732

732

732

732

732

732

732

728

728

728

728

732

732

728

723

719

Aug.

719

714

714

714

714

714

714

714

710

710

710

710

710

710

710

706

706

706

706

706

706

706

706

706

706

706

706

706

706

702

698

Mean

3 745

> 775

L 758

1 872

5 731

793

884

882

794

870

738

709

703

782

Sept.

698

698

698

702

702

702

702

698

698

698

698

a698

a698

a702

a702

a706

706

706

706

706

706

706

706

706

710

710

710

710

710

706

-

Runoff in 

acre-feet

'45,840

46,130

46,610

631,200

44,980

44,030

54,360

52 490

48)810

51,790

45,400

43,580

41,860

565,900

a No gage-height record; discharge interpolated.
PIT RIVER BASIN 317

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 1947.

Extremes.- 1945-46: Maximum discharge during water year, 13,200 second-feet Dec. 27

(gage height, 19.84 feet), from rating curve extended above 3,700 second-feet by logarithmic plotting; minimum, 875 second-feet Oct. 23.

1946-47: Maximum discharge during water year, 7,700 second-feet Feb. 12 (gage 

height, 16.94 feet), from rating curve extended above 3,700 second-feet by logarithmic 

plotting; minimum, 850 second-feet Sept. 14, 15, 21-30.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

rair. Some very small diversions above station for domestic use.

Rating table, water years 1945-47 (gage height, 

in feet, and discharge, in second-feet)

10.8

11.0

11.4

12.0

830

935

1,190

1,660

13.0

14.0

15.0

16.0

2,540

3,600

4,850

6,250

17.0

18.0

19.0

20.0

7,800

9,500

11,400

13,500

Discharge, in second-feet, 1945-47 

1945-46

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

886

886

880

880

880

880

880

880

891

913

913

902

896

891

886

896

896

891

891

891

886

886

880

880

880

880

886

990

1,320

2,900

3,240

Nov.

1,840

1,380

1,200

1,130

1,080

1,050

1,030

1,010

1,010

1,050

1,030

1,120

1,140

1,090

1,320

1,680

1,980

1,860

2,950

2,340

1,860

1,600

1,500

1,820

2,870

3,270

2,980

2,790

2,830

2,390

Dec.

2,050

1,830

1,760

2,700

3,570

3,300

3,490

2,790

2,310

2,020

1,820

1,710

1,600

1,520

1,480

1,430

1,380

1,340

1,310

1,300

1,810

5,550

6,480

5,850

5,170

5,180

11,900

11,500

10,600

6,580

4,760

Jan.

3,860

3,770

4,290

4,250

4,230

3,720

3,300

2,920'

2,660

2,500

2,380

2,240

2,150

2,060

1,980

1,920

1,860

1,800

1,770

1,730

1,700

1,660

1,640

1,660

1,680

1,640

1,600

1,580

1,550

1,520

1,480

Feb.

1,480

1,510

1,470

1,440

1,420

1,460

1,400

1,390

1,380

1,370

1.360

1,340

1,320

1,320

1,320

1,320

1,310

1,310

1,400

1,600

1,800

2,000

1,950

1,900

1,900

1-,900

1,950

1,950

_

.

-

Mar.

1,950

1,900

1,900

1,900

1,900

1,850

1,850

1,800

1,800

1,750

1,750

1,800

1,900

1,900

l',90o

1,850

1,800

1,800

1,850

1,850

1,900

1,900

1,950

1,950

1,900

1,850

1,900

1,990

2,340

2,300

3,220

Apr.

2,140

2,070

2,040

1,980

1,960

1,940

1,950

2,150

2,130

2,060

2,020

2,020

2,030

2,050

2,080

2,140

2,210

2,280

2,290

2,230

2,150

2,080

2,070

2,120

2,200

2,240

2,170

2,120

2,100

2,030

-

May

1,960

1,940

1,960

1,980

1,'970

1,960

1,950

1,930

1,880

1,360

1,840

1,800

1,800

- 1,780

1,750

1,730

1,740

1,750

1,750

1,730

1,730

1,710

1,680

1,630

1,580

1,740

1,760

1,640

1,570

1,530

1,520

June

1,500

1,500

1,490

1,470

1,440

1,410

1,390

1,360

1,340

1,330

1,310

1,300

1,290

1,280

1,270

1,260

1,250

1,240

1,230

1,220

1,220

1,220

1,220

1,210

1,210

1,200

1,190

1,180

1,180

1,170

-

July

1,160

1,160

1,150

1,150

1,140

1,140

1,130

1,130

1,120

1,120

1,110

1,110

1,100

1,090

1,080

1,080

1,080

1,070

1,070

1,070

1,070

1,060

1,060

1,050

1,050

1,110

1,080

1,060

1,040

1,050

1,040

Aug.

1,040

1,030

1,030

1,030

1,030

1,020

1,010

1,010

1,000

1,000

1,000

996

996

996

990

990

990

984

984

979

979

979

979

979

974

974

974

974

974

970

970

Sept.

970

970

970

970

970

960

960

960

960

960

960

960

950

950

950

950

950

950

950

946

946

946

940

946

946

946

940

940

940

940

-

Peak discharge.- Oct. 31 (4 a.m.) 4.0OO sec.-ft.; Dec. 23 (1 a.m.) 7,480 sec.-ft.; Dec. 27 (12:20 

p.m.) 13,200 sec.-ft.; Dec. 28 (11:30 p.m.) 12,700 sec.-ft.

Note.- No gage-height record Feb. 13 to Mar. 27, June 12-19, June 24 to July 25, Aug. 30 to Sept. 

19; discharge computed on basis of recorded range in stage, weather records, and records for 

McCloud River near McCloud and Squaw Creek above Shasta Reservoir.
318 PIT RIVER BASIN

Discharge, in second-feet, of MoCloud River above Shasta Reservoir, Calif., 1945-47--Continued

1946-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

946

957

968

952

952

946

946

946

946

940

935

935

935

935

935

935

952

940

940

940

946

1,000

962

946

940

940

935

935

935

935

935

Her.

935

930

924

924

924

924

924

918

918

918

918

918

918

918

918

918

924

1,080

1,590

1,110

1,040

2,470

3,200

1,700

1,340

1,200

1,130

1,080

1,060

1,040

-

Dec.

1,030

1,030

1,100

1,260

1,320

1,790

1,620

1,440

1,320

1,230

1,190

1,160

1,130

1,110

1,090

1,070

1,050

1,030

1,030

1,020

1,020

1,010

1,000

1,000

1,010

1,010

1,010

996

990 '979

968

Jan.

974

962

952

957

957

957

952

952

952

952

946

952

946

946

930

930

930

930

930

924

924

924

924

924

924

935

930

968

935

940

924

Feb.

924

924

930

935

935

940

952

962

1,000

1,120

1,310

5,620

3,720

2,460

2,010

1,960

1,800

1,680

1,560

1,480

1,400

1,350

1,290

1,250

1,230

1,220

1,310

1,250

_

-

Mar.

1,270

2,140

4,560

3,410

2,550

2,150

1,940

1,800

2,210

4,150

3,310

2,640

2,300

2,110

1,990

1,910

1,890

1,810

1,770

1,720

1,670

1,650

1,640

1,600

1,530

1,490

1,460

1,490

1,680

2,740

2,880

Apr.

2,480

2,300

2,200

2,040

1,940

1,840

1,760

1,710

1,640

1,590

1,540

1,500

1,470

1,470

1,470

1,480

1,480

1,460

1,440

1,410

1,380

1,360

1,330

1,310

1,280

1,270

1,270

1,270

1,260

1,250

-

May

1,230

1,230

1,230

1,210

1,190

1,170

1,160

1,170

1,160

1,130

1,110

1,090

1,080

1,070

1,060

1,040

1,040

1,030

1,030

1,010

1,000

996

996

990

990

990

1,000

1,000

996

1,070

1,180

June

1-.880

2,270

1,610

1,400

1,750

2,140

2,310

4,260

3,730

2,720

2,240

1,960

1,770

1,650

1,560

1,520

1,480

1,400

1,360

1,300

1,260

1,230

1,210

1,190

1,180

1,160

1,150

1,130

1,120

1,100

-

July

1,080

1,070

1,060

1,050

1,040

1,040

1,030

1,020

1,010

1,010

1,000

1,000

996

990

984

979

974

968

962

962

957

952

946

946

940

946

968

984

957

946

930

Aug.

924

918

918

913

913

908

902

902

902

902

902

902

902

902

902

902

896

891

891

891

891

891

886

880

880

875

875

880

886

891

875

sept.

870

865

865

865

865

865

870

865

860

855

855

855

855

850

850

855

855

855

855

855

850

850

850

850

850

850

850

850

850

850

-

Peak discharge.- Nov. 22 (10:30 p.m.) 5,520 sec.-ft. ; Feb. 12 (1 p.m.) 7,700 sec.-ft.; Mar. 

(8 a.m.) 4,850 sec.-ft.; Mar. 10 (7 a.m.) 4,500 sec.-ft.; June 8 (6:30 p.m.) 4,620 sec.-ft.

Monthly discharge, In second-feet, 1945-47

Month

Calendar year .......................

March'... .....................................

Mav

July. .......................................

September. ........................ .........

Water year 1945-46 .......................

October 1946 ...............................

December. ......................... .........

Calendar year 1946 .............. .......

March.......................................

April .............................. ........

May.........................................

July........................................

September. ..................................

Water year 1946-47 .......................

Seccndfoct-days

_

28,596

626,734

290

, 35,013

525,021

43 522

27 793

25,685

456,242

Maximum

_

970

11,900

1,790

4,290

924

870

5,620

Minimum

880

.

940

880

935

968

918

850

850

Mean

_

995

953

1,717

945

i 1,129

1,438

856

1,250

Runoff in 

acre-feet

.

56,720

1,243,000

69,450

1,041,000

50,950

904,900
CLEAR CREEK BASIN 319

Clear Creek near Igo, Calif.

Location.- Water-stage recorder, lat. 40°31 I , long. 122°31', in NE^NE^ sec. 27, T. 31 

w., K. 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 1947.

Extremes.- Maximum discharge during year, 3,700 second-feet Feb. 12 (gage height, 6.71 

reet); minimum, 16 second-feet Sept. 30.

1940-47: Maximum discharge, 19,200 second-feet Mar. 1, 1941 (gage height, 12.2 

feet), from rating curve extended above 12,000 second-feet on basis of velocityarea rtudies; 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 table, water year 1946-47 (gage height, In feet, 

and discharge, in second-feet)

Z.I 

Z.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

86

109

134

162

3.2 

3.5 

3.8 

4.2 

4.6

228

350

515

780

1,060

5.0 1,400

5.5 1,930

5.9 2,430

6.1 2,710

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.

17

20

28

29

28

25

26

26

25

25

24

24

24

23

23

26 '28

30

30

31

32

37

46

39

36

34

33

34

34

35

36

Nov.

37

37

37

37

37

37

37

37

37

38

38

38

38

38

38

38

38

54

366

132

80

542

763

243

154

119

102

84

78

Dec.

76

73

126

306

282

794

380

286

221

188

162

145

134

126

119

112

107

100

95

91

88

86

82

80

84

84

80

78

80

78

75

Jan.

75

73

69

67

69

69

67

67

65

65

64

64

64

64

61

59

62

62

61

61

59

59

59

57

57

67

64

75

73

75

78

Feb.

71

71

76

78

78

82

84

86

122

197

692

2,640

1,080

620

438

380

315

278

243

218

201

184

165

156

148

142

145

137

_

-

Month

December ....................................

Calendar year 1946 ......................

March.. .....................................

April ......................................

Bay. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

148

377

2,000

1,440

1,180

582

46 >

400

1,030

1,380

976

745

588

497

433

385

350

324

302

274

255

255

236

218

208

197

197

243

422

780

668

Apr.

551

545

527

455

416

380

341

328

306

286

266

247

228

214

208

201

194

184

178

172

165

162

156

148

142

134

134

140

137

122

-

Secondfoot-days

908

4,818

78,535

647

56,727

May

124

119

114

109

104

100

104

129

119

95

91

88

88

84

78

75

73

71

67

62

61

59

59

56

56

54

65

73

71

80

188

Maximum

794

2,130

78

749

34

2,640

June

408

292

165

132

271

218

344

749

433

306

239

201

172

154

137

132

132

116

100

98

91

88

84

80

76

71

71

69

67

64

-

Minimum

 ^

3

7,

16

ie

le

July

61

57

54

57

54

54

50

48

46

46

47

47

 46

43

41

41

38

38

35

34

33

33

31

31

30

30

34

47

42

37

35

Aug.

33

32

3]

3C

29

27

26

26

26

26

26

26

25

24

24

25

25

24

24

24

28

31

31

31

30

27

28

28

36

41

37

Mean

1 29 3

5 155

> 215

> 256

28 4

21.6

155

Sept.

34

31

28

26

24

24

22

24

24

25

24

21

20

19

18

17

17

19

24

24

24

20

18

18

18

17

17

17

17

16

-

Runoff in 

acre-feet

9,560

155,800

1,280

112,500
320 COTTONWOOD CREEK BASIN

Cottonwood Creek near Cottonwood, Calif.

Location.- Water-stage recorder, lat. 40°24', Iqng. 122°13', in NE£ sec. 7, T. 29 N., R. 

3 w., a miles east of Cottonwood and 2 miles upstream from mouth. Altitude of gage, 

about 370 feet (from river-profile1 map).

Drainage area.- 945 square miles.

Records available.- October 1940 to September 1947.

Extremes.- Maximum discharge during year, 15,900 second-feet Feb. 12 (gage height, 9.84 

reetj, from rating curve extended above 5,000 second-feet; minimum, 28 second-feet 

Aug. 19-21.

1940-47: 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. Small diversions above station.

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.

57

66

66

70

66

54

55

59

63

55

55

55

57

57

55

55

57

63

68

78

83

78

86

80

83

88

88

88

88

94

86

Nov.

101

70

52

48

46

44

44

43

41

43

43

41

41

41

40

40

40

40

141

264

154

140

1,200

543

295

205

169

144

130

127

-

Dec.

117

110

127

1,790

1,040

1,070

786

582

476

393

335

301

278

256

238

224

212

2OO

192

184

176

168

164

160

160

168

164

152

152

148

140

Jan.

136

133

126

119

122

122

122

116

116

112

112

112

112

112

105

102

98

100

100

1OO

1OO

100

98

98

98

98

102

119

119

116

112

Feb.

112

108

105

108

116

116

116

119

136

212

325

11,900

4,790

2,070

1,320

1,080

942

788

676

598

535

489

451

420

397

379

362

352

_

_

-

Month

December ....................................

Calendar year 19*6 ......................

March. .....................................

April ......................................

May. .......................................

July. ......................................

Water year 1946-47 ......................

Mar.

352

544

5,910

5,240

1,850

1,250

977

848

1,100

4,450

2,720

1,750

1,360

1,190

1.13O

1,080

986

924

865

780

692

636

613

570

522

482

457

470

5O2

652

748

Apr.

684

684

788

668

598

577

535

515

515

476

445

432

408

397

391

368

368

362

362

341

305

296

282

269

260

256

247

247

251

239

-

Seoondfoot-days

2,153

4,370

1O,663

158,376

3,437

29,122

12,566

5,196

1,517

1,130

1,312

119,629

Peak discharge.- Feb. 12 (5:45 a.m.) 15.900 sec. -ft.;

May

235

226

226

226

222

214

211

214

207

195

184

174

170

170

166

163

152

149

152

133

133

133

130

111

111

111

117

133

143

136

149

Maximum

94

1,200

1,790

10,800

136

11,900

5,910

788

235

541

76

60

55

11,900

Mar. 3 (12

June

269

336

264

226

, 222

357

357

541

451

374

310

278

247

211

188

184

174

17O

166

146

133.

133

133

123

111

96

82

76

76

79

-

Minimum

54

40

110

37

98

105

352

239

111

76

30

28

36

28

July

76

74

68

60

55

55

50

5O

48

48

48

48

48

48

48

48

50

50

50

53

53

48

41

43

41

36

36

41

41

32

30

Aug.

30

34

38

41

38

34

32

34

38

41

43

36

32

34

34

30

32

36

30

28

28

a36

a4O

a36

32

32

34

SB

46

53

60

Mean

69.5

146

344

434

111

1,040

1,344

419

168

217

48.9

36.5

43.7

328

Sept.

55

53

53

50

46

43

41

41

43

48

50

48

48

46

38

41

43

43

41

41

38

36

36

36

36

38

43

43

46

48

Runoff in 

acre-feet

4,270

8,670

21,150

314,200

6,820

57,760

82,610

24,920

10,310

12,920

3,010

. 2,240

2,600

237,300

p.m.) 14,200 sec. -ft. ,- Mar. 10

(1 p.m.) 5,010 sec.-ft.

a No gage-height record} discharge computed on basis of recorded range in stage and records for 

Clear Creek near Igo.
BATTLE CREEK BASIN 321

Battle Creek near Cottoawood, Calif.

Location- Water-stage recorder, lat. 40°24', long. 122°08', in NW£ sec. 6, T. 29 N., 

H. 2 W., 3 miles upstream from mouth and 9 miles east of Cottonwood. Datum of gage 

is 421.47 feet above datum of Bureau of Reclamation (levels by Bureau of Reclamation)

Drainage area.- 362 square miles.

Records available.- October 1940 to September 1947.

Extremes.- Maximum discharge during year, 6,950 second-feet Apr. 1 (gage height, 8.44 

reet); minimum, 90 second-feet (regulated) Oct. 6, 11.

1940-47: 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 

(regulated) Aug. 11, 1946.

Maximum stage knovm, 15.8 feet, from floodmarks, Dec. 11, 1937 (discharge, 36,000 

second-feet, by slope-area method).

Remarks.- Records good. Flow regulated by four small powar plants and several small 

reservoirs above station. About 10 second-feet diverted above station for irrigation.

Rating table, water year 1946-47 (gage height, in feet,

and discharge in second-feet) 

(Shifting-control method used June 9 to Sept^ 30)

2.2 135

2.4 175

2.6 224

2.8 280

3.0 344

3.4 497

3.8 685

4.2 915

4.6 1,200

5.0 1,590

5.5 2,220

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.

187

199

199

199

192

194

192

197

197

202

189

185

180

185

187

185

182

185

187

189

187

202

222

202

197

194

199

197

199

194

202

Nov.

197

192

185

197

199

197

199

199

204

187

199

187

189

194

206

189

197

222

474

364

257

480

881

358

271

254

232

229

227

227

-

Dec.

219

229

541

937

979

8M

484

423

337

292

274

260

254

248

246

240

238

227

224

229

229

222

229

227

229

248

274

268

263

260

238

Jan.

254

240

222

224

219

229

224

222

222

219

222

216

222

216

212

209

212

212

209

219

214

209

212

209

212

214

227

224

219

222

224

Feb.

227

209

222

214

z\e

214

212

199

298

408

542

2,080

834

506

423

423

358

321

302

289

274

274

257

257

254

251

248

254

_

-

Month

October ....................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March.. ....................................

April... ...................................

May. .......................................

June .......................................

July.......... .............................

August .....................................

September ..................................

Water year 1945-47 ......................

Mar.

251

337

523

655

419

337

314

341

347

472

506

408

375

354

344

334

344

337

334

324

318

318

389

361

324

318

314

361

396

489

463

Apr.

800

2,170

1,640

675

567

771

562

510

536

459

423

415

396

415

408

411

415

400

385

378

378

361

344

324

337

321

314

328

318

318

Secondf cot-days

6,007

7 793

10)406

124,723

6,810

10,562

11,707

16,079

8 ,562

7, 798

5,040

4, 651

4,578

99,993

May

305

318

334

328

321

311

311

305

296

280

280

274

274

266

257

254

248

254

251

251

263

263

257

251

248

246

257

268

263

251

277

Maximum

222

881

979

1,240

254

2,080

655

2,170

334

450

177

155

162

2,170

June

292

305

299

283

274

302

314

450

431

341

299

263

260

251

248

235

246

246

229

222

219

214

206

204

202

194

194

194

192

189

-

Minimum

i Aotfif

18J

21£

18C

20S

19! 25'

314

24£

18'

15

14£

14E

14£

July

177

175

175

171

173

173

171

175

168

171

168

164

164

162

162

160

160

160

155

155

155

153

155

155

155

155

155

155

155

155

153

Aug.

153

151

149

 151

149

14£

148

151

148

149

148

149

149

149

148

149

149

149

149

148

155

155

151

151

148

149

149

153

151

155

149

Mean

194

260

336

) 342

220

377

378

536

276

260

163

150

153

274

Sept.

149

149

149

149

148

148

149

151

149

149

148

148

149

148

148

149

153

151

162

155

151

153

157

160

155

162

160

160

157

162

Runcff in 

acre-feet

11,910

15,460

20,640

247,400

13,510

20,950

23,220

31,890

16,980

15,470

10,000

9 230

9^080

198,300

Peak discharge.- Feb. 12 (4 

(6:30 p.m.) 3,360 sec.-ft.; API

.m.) 2,820 sec.-ft.; Apr. 1 (ll:3O p.m.) 6,950 sec.-ft.; Apr. 2 

3 (7 a.m.) 2,960 sec.-ft.
322 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., 

K. aw., 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 1947.

Extremes.- Maximum-discharge during year, 2,190 secund-feet Feb. 12 (gage height, 6.56 

reet) ; minimum, 28 second-feet Aug. 25, 26, Sept. 3-6, 14-17.

1940-47: Maximum discharge, 10,400 second-feet Feb. 6, 1942 (gage height, 13.9 

feet); minimum, 14 second-feet (regulated) Oct. 1, 1940.

Flood of December 1937 reached a 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 table, water year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Dec. 8-2O, Aug. 21 to Sept. 30)

1.4

1.5

1.6

1.7

1.8

1.9

28

32

37

42

50

2.0 60

2.1 74

2.2 91

2.3 111

2.5 155

3.0 276

3.5 440

4.0 345

4.5 880

5.0 1,140

5.7 1,550

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

2b

-26

27

28

29

30

31

Oct.

34

37

37

36

36

36

35

37

37

37

36

36

36

36

37

37

37

37

37

37

38

37

39

39

38

37

37

37

38

38

38

Nov.

38

38

38

38

38

38

38

38

38

39

39

39

39

39

39

39

39

41

101

82

48

458

416

82

55

48

45

42

42

41

-

Dec.

41

41

1O1

632

638

682

246

183

124

97

81

70

K

59

54

52

49

48

46

45

43

42

42

42

42

46

54

51

48

47

46

Jan.

46

45

42

42

42

42

42

42

42

42

42

42

42

42

41

40

41

41

41

41

41

41

41

41

41

41

42

45

43

42

42

Feb.

42

42

42

42

42

42

42

42

50

122

356

1,520

500

231

162

144

118

97

86

77

68

63

60

58

56

55

54

54

_

-

Month

December ...................................

Calendar year 1946 ......................

September. .................................

Water year 1946-47 ......................

Mar.

54

67

464

348

212

146

118

133

133

241

226

166

133

111

101

91

83

84

82

79

74

73

84

77

71

67

66

84

99

178

144

Apr.

129

307

846

345

228

241

188

173

188

151

133

118

105

107

99

93

91

88

82

79

77

74

68

66

63

61

60

60

60

59

-

Seoondfoot-days

3,855

32,951

952

874

26,788

May

57

56

55

55

53

52

52

51

50

50

48

48

47

46

46

45

43

42

41

41

40

39

39

38

38

37

38

39

39

39

39

Maximum

R82

682

32

30

1,520

June

46

46

f43

f41

42

46

53

63

73

54

46

42

41

40

40

39

40

40

39

38

38

37

37

37

37

37

37

36

36

36

-

Minimum

41

34

54

28

28

July

35

35

35

35

34

34

33

33

33

33

33

33

33

34

34

34

34

33

32

32

32

32

32

32

32

32

32

32

32

32

32

Aug.

32

32

32

32

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

32

32

30

29

28

28

29

29

30

31

30

Mean

71.9

124

90.3

152

45 3

29.1

73.4

Sept.

30

29

28

28

28

28

29

30

30

30

29

29

29

28

28

28

28

30

30

30

29

29

29

29

29

30

30

30

30

30

-

Runoff in 

acre- feet

2,270

4,280

7,650

65,360

8,800

1,730

53,130

f Computed on basis of fragmentary gage-height record.
MILL CREEK, BASIN 

Mill Creek near Los Molinos, null!'.

323

Location.- Water-stage recorder, lat. 40°03 I 20", long. 122°01'15", In N? sec. 6, T. 25 

N., R. 1 W., 5 miles upstream from mouth and 5 miles'northeast of Los Molinos. Altitude of gage, about 420 feet (from topographic map).

Drainage area.- 134 square miles.

Records available.- October 1928 to September 1947. September 1909 to September 1913 

[fragmentary) at site 0.3 mile downstream.

Average discharge.- 19 years (1928-47), 272 second-feet.

Extremes.- Maximum discharge during year, 4,070 second-feet Feb. 12 (gage height, 7.65 

I'eet) ; minimum, 81 second-feet Sept. 6, 30.

1928-47: 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 excellent. No storage or large diversion above station.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, In second-feet)

1.3 73 2.4 367 5.O 1,600 

1.4 86 3.O 605 6.0 2,300 

1.5 10Z 3.5 825 6.9 3,200 

1.7 144 4.0 1,060 

2.0 230 4.5 1,310

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.

99 

104 

106 

104 

100

99 

99 

100 

99 

97

96 

96 

96 

96 

96

97 

99 

100 

99 

99

99 

104 

133 

106 

104

102 

102 

102 

102 

102 

104

Nov.

102 

102 

100 

100 

100

100 

102 

103 

100 

100

102 

102 

102 

102 

102

102 

102 

126 

538 

246

152 

671 

925 

279 

191

160 

144 

135 

131 

129

Dec.

122 

120 

217 

720 

1,150

838 

394

306 

236 

197

176 

160 

149 

144 

140

135 

129 

124 

122 

124

122 

122 

120 

120 

126

135 

160 

140 

135 

129 

122

Jan.

124 

120 

116 

116 

116

116 

116 

114 

114 

114

114 

114 

114 

112 

110

110 

110 

110 

110 

110

110 

110 

110 

110 

112

122 

124 

129 

122 

120 

120

Feb.

116 

116 

118 

118 

118

118 

118 

118 

144 

233

564 

2,590 

987 

513 

375

330 

279 

246 

221 

. 203

185 

176 

165 

162 

160

160 

162 

157

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

Jnly 

Augu 

Sept

Wa

mber.. .................................

lendar year 1946 ......................

ary

h. .....................................

ember. .................................

ter year 1946-47 ......... ,-, ...........

Mar.

160 

215 

482 

421 

310

252 

230 

249 

243 

710

569 

417 

345 

313 

299

299 

306 

303 

293 

282

269 

259 

330 

269 

243

233 

230 

272 

327 

493 

469

Apr.

394 

394 

738 

481 

382

390 

345 

337 

367 

323

306 

296 

296 

313 

330

341 

356 

3l3 

313 

306

306 

279 

272 

276 

276

279 

286 

289 

303 

306

Secondfoot-days

3,141 

5,549 

7,134

87,877

3,569 

8,952 

10,092 

10,193 

7,437 

5,621 

3,038 

2,761 

2,518

70,005

Peak discharges.- Nov. 23 (8:20 p.m.) 2,020 sec. -ft.;

May

320 

363 

375 

356 

327

330 

320 

293 

269 

243

236 

230 

221 

212 

212

212 

215 

209 

209 

215

212 

209 

200 

194 

182

182 

176 

179 

170 

173 

203

Maxisum

133 

925 

1,150

1,150

129 

2,590 

710 

738 

375 

405 

114 

94 

89

2,590

June

230 

24O 

197 

176 

194

206 

256 

405 

371 

2S5

227 

203 

191 

179 

173

165 

188 

165 

154 

152

144 

140 

135 

131 

126

124 

124 

122 

120 

118

Minimum

96 

10C 

12C

96

11C 

116 

16C 

27Z 

17C 

11£ 

91 

86 

81

81

July

114 

110 

110 

108 

106

104 

104 

102 

102 

100

100 

100 

100 

99 

96

97 

96 

96 

94 

92

91 

91 

91 

92 

94

92 

92 

92 

91 

91 

91

Ang.

91 

91 

91 

92 

91

89 

89 

89 

89 

89

89 

89 

89 

88 

88

88 

88 

96 

86 

86

92 

94 

91 

88 

86

86 

86 

86 

89 

94 

91

Sept.

88 

85 

83 

83 

82

81 

83 

88 

85 

85

83 

85 

83 

83 

83

83 

83, 

85 

89 

86

85 

85 

85 

83 

83

83 

83 

82 

82 

81

 Runoff in Mean acre-feet

101 6,230 

185 11,010 

230 14,150

241 174,300

115 7,080 

320 17,760 

326 20,020 

340 20,220 

240 14,750 

187 11,150 

98.0 6,030 

89.1 r.,400 

83.9 4,990

192 138,900

Dec. 4 (2 a.m.) 1,770 sec. -ft.; Dec. 5

(3 p.m.) 1,830 sec.-ft.; Dec. 6 (7 a.m.) 1,480 sec.-ft.; Feb. 12 (12:30 p.m.) 4,O70 sec.-ft.; 

Mar. 10 (9 a.m.) 1,100 sec.-ft.
334 THOMAS CREEK BASIN

Thomas Creek at Paskenta, Calif.

Loc gt,3j on -- Water-stage recorder, lat. 39°52', long. 122°33', in NW£ sec. 4, T. 23 N., R 

b w., 0.5 mile upstream from Paskenta and 4.5 miles downstream from Mill Creek.

Drainage area.- 188 square miles.

Average discharge.- 26 years (1921-47), 242 second-feet.

^TlUffnff^AS?C 2o7LSS1??9rai:3o: 210 secon(J-feet Peb ' 12 (S^ height, 7.20 

1921-47: Maximum discharge, 18,600 second-feet Jan. 21, 1943 (gage height 10 92

are fair.

1

Rating tables, water year 1946-47 (gage height, in feet, and discharge, in second-feet)

«

Oct. 1 to Nov. 21

2.9 16

3.0 29

3.1 43 1:1

Nov. 22 to Sept. 3O

2.75 8.9

2.8 12

2.9 21

185

5 - 8

6.3

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.

1.2

1.3

1.5

1.5

1.5

1.7

1.9

2.1

2.1

2.1

1.9

1.9

1.9

2.1

2.4

2.4

2.6

2.6

2.9

3.2

3.2

3.5

3.5

4.3

S.5

6.5

6

6.5

6.5

7

7.5

Nov.

8

8

8

8

8

8

8

8

8

10

10

10

10

10

10

10

10

30

300

120

60

400

800

250

150

110

90

80

70

60

-

Dec.

55

50

80

250

230

500

300

200

150

128

125

125

115

107

96

88

84

75

70

66

64

61

59

53

60

60

58

56

58

54

50

Jan.

48

46

43

40

41

42

40

40

39

38

38

38

38

36

32

31

33

32

33

32

32

31

29

31

31

36

44

40

36

39

36

Feb.

34

36

44

50

57

61

70

77

125

166

715

3,200

1,070

608

437

373

296

247

208

177

162

144

134

141

118

115

110

102

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April....... ...............................

May. .......................................

July. ......................................

September . .................................

Water year 1946-47 ......................

Mar.

107

194

570

379

247

199

177

170

299

1,640

843

600

540

578

631

631

631

608

562

498

424

398

404

313

268

242

226

247

313

444

457

Apr.

385

367

319

284

263

247

226

217

203

190

199

199

208

242

263

263

252

213

194

194

170

151

137

131

128

125

125

125

121

121

Secondfoot-days

3,532

66,816.8

1.9

40,389.3

May

128

144

137

121

110

107

99

93

86

77

70

66

64

62

59

55

53

52

50

48

46

45

42

38

36

34

40

42

36

36

38

Maximum

500

2,220

.8

3,200

June

45

84

55

46

48

61

79

166

131

91

70

53

52

44

39

36

38

36

31

28

26

23

21

20

19

18

16

16

16

15

Minimum

50

.7

0

0

July

14

12

11

11

11

10

9.4

8.9

8.4

7.8

7.4

6.9

6.9

6.9

6.0

5.6

5.2

4.5

4.1

3.5

3.2

2.9

2.6

2.4

2.1

1.9

2.4

2.4

2.4

2.6

2.6

Aug.

2.4

2.1

2.1

2.1

1.7

1.3

1.3

1.3

.9

.9

.8

.8

.6

.6

.4

.4

.3

.2

.1

O

.2

.4

.3

.1

.2

.9

.9

.8

.8

.9

.8

Mean

114

183

.06

111

Sept.

0.8

.4

.2

.1

.1

.1

O

0

.1

.1

0

o

0

0

o

0

0

o

0

0

0

0

0

0

0

o

0

o

0

o

0

Runoff in 

acre-feet

7,010

132,500

3.8

80.100

Peak discharge.- Peb. 12 (12:15 a.m.) 5,210 sec.-ft.; Mar. 1O (5 a.m.) 2,4OO sec.-ft. 

Note.- Mo gage-height record Oct. 27 to Dec. 9, Dec. 24 to Jan. 5; discharge computed on basis of 

weather records and records for Clear Creek near Igo and Cottonwood Creek near Cottonwood.
DEER CREEK BASIN 325

Deer Creek near Vina, Calif.

Location.- Water-stage recorder, lat. 40°01', long. 121°56', in NE£ sec. 23, T. 25 N., 

K. 1 w., 0.8 mile upstream from concrete diversion dam and 9 miles northeast of Vina. 

Altitude of gage, about 480 feet (from topographic map).

Drainage area.- 200 square miles.

Records available.- October 1911 to December 1915, March 1920 to December 1937, January 

1939 to septemoer 1947.

Average discharge.- 28 years (1912-15, 1920-37, 1939-47), 288 second-feet.

Extremes.- Maximum discharge during year, 4,700 second-feet Feb. 12 (gage height, 7.88 

feet); minimum, 74 second-feet Sept. 5, 6. ,

1911-15, 1920-37, 1939-47: 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 excellent except those for period of no gage-height record, which are 

good. No storage or large diversion above station.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

2.2 7O 3.3 338 5.1 1.35O 

2.3 84 3.6 458 5.5 1,66O 

2.4 101 3.9 606 6.0 2,150 

2.5 12O 4.2 770 6.5 2.75O 

2.7 162 4.5 95O 7.0 3,43O 

3.0 240 4.8 1,14O

Discharge, in second- feet, water year October 1946 tc 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.

96 

107 

101 

99 

96

94 

94 

96 

96 

94

92 

92 

92 

9? 

94

96 

96 

98 

96 

96

96 

101 

116 

101 

96

96 

96 

96 

96 

96 

98

Nov.

96 

96 

92 

94 

94

94 

96 

96 

94 

94

94 

94 

94 

96 

96

96 

96 

114 

532 

27O

147 

667 

98 O 

276 

179

153 

136 

126 

124 

120

Dec.

116 

114 

207 

628 

1,150

a840 

a40O 

a310 

a240 

a210

184 

172 

160 

151 

144

140 

134 

128 

126 

126

126 

124 

124 

124 

128

134 

174 

155 

138 

132 

124

Jan.

124 

122 

116 

114 

116

116 

114 

112 

112 

110

112 

112 

112 

110 

107

105 

105 

103 

103 

105

105 

105 

105 

1O5 

107

112 

122 

128 

114 

114 

114

Feb.

HO 

109 

110 

110 

110

112 

112 

114 

293 

259

523 

3,05O 

1.30O 

664 

458

387 

327 

276 

252 

232

212 

202 

189 

184 

179

174 

174 

176

Month

Octo 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Apri

UAV

June 

July 

Augu 

Sept

ffa

ber. ...................................

 bar. ......................... .........

mber. ...................................

lendar year 1946 

ary

uary

h.. ....................................

1. .....................................

ember. .................................

ter year 1946-47 ......................

Mar.

181 

234 

572 

467 

356

' 296 

267 

286 

289

826

742 

544 

436 

383 

349

331 

316 

302 

292 

273

258 

249 

338 

28O 

249

237 

226 

255 

320 

539 

514

Apr.

424 

436 

782 

59O 

504

580 

458 

463 

524 

445

403 

368 

338 

324 

3O9

296 

283 

267 

255 

243

234 

220 

207 

199 

191

184 

181 

179 

174 

174

Secondfoot-days

3,005 

5,436 

7,163

SO, 496

3,461 

10,398 

11,207 

10,235 

3,898 

3.4OO 

2,658 

2,443 

2,290

65,594

May

167 

162 

160 

158 

151

149 

147 

142 

140

134

132 

128 

126 

124 

122

118 

116 

114 

112 

110

107 

1O5 

105 

103 

103

103 

107 

110 

110 

109 

124

Maximum

116 

98 O 

1,150

1,150

128 

3,050 

826 

782 

167 

176 

92 

86 

81

3,O5O

June

136 

130 

120 

112 

114

124 

140 

176 

176 

144

122 

114 

113 

109 

105

105 

110 

109 

101 

98

96 

96 

96 

94 

94

94 

94 

94 

92 

92

Minimum

92 

92 

114

91

103 

109 

181 

174 

103 

92 

80 

76 

74

74

July

92 

91 

91 

91 

91

91 

89 

89 

88

38

89 

89 

88 

88 

86

86 

84 

84 

83 

83

83 

83 

83 

83 

81

81 

81 

81 

81 

8O 

80

Aug.

8O 

80 

8O 

8O 

78

78 

77 

77 

77 

77

77 

77 

77 

77 

77

77 

76 

76 

76 

77

81 

86 

81 

8O 

80

78 

80 

80 

81 

84 

81

Sept.

78 

77 

76 

76 

74

74 

76 

77 

77 

77

76 

76 

76 

76 

76

76 

76 

77 

81 

78

76 

76 

76 

76 

76

76 

76 

76 

76 

76

 .,. Runoff in "ean acre-feet

96.9 5,960 

181 10,780 

231 14,210

221 159,700

112 6.86O 

371 20,620 

362 22,23O 

341 20.3OO 

126 7,730 

113 6,740 

85.7 5,270 

78.8 4,85O 

76.3 4,54O

180 130,100

Peak discharge.- Nov. 22 (9:30 c.m.) Z. ISO sec. -ft.: Dec. 5 (3:15 p.m.) 1,730 see. -ft.: Feb. IE

(11 a.m.) 4,700 see.-ft.

a No gage-height record; discharge computed on basis of recorded range In stage and records for 

Mill Creek near Los Mollnos.

8S4211 O - 49 - 22
326 CHICO CREEK BASIN 

Chico Creek near Chico, Calif.

Location.- Water-stage recorder, lat. 39°46', long. 121°46', in Arroyo Chico Grant, 1 

mile upstream from golf clubhouse in Municipal 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 1947.

Average discharge.- '17 years, 134 second-feet.

Extremes.- Maximum discharge during year, 3,010 second-feet Feb. 12 (gage height, 10.63 

reet); minimum, 10 second-feet (regulated) Sept. 18.

1930-47: Maximum discharge, 8,260 second-feet Dec. 10, 1937 (gage height, 18.7 

feet, present datum), from rating curve extended above 5,000 second-feet on basis of 

rating at cable gage, velocity-area studies, and logarithmic plotting; minimum. 10 

second-feet (regulated) Dec. 11, 1932, Aug. 15, 1939, Sept. 18, 1947.

Remarks.- Records excellent. No storage or large diversion above station.

Rating tables, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Feb. 12 Feb. 12 to Sept. 30

2.6 22 3.4 130 6.0 845 2.2 14 3.0 82 4.5 432 

2.7 28 3.7 191 7.0 1,230 2.3 18 3.2 116 5.0 576 

2.8 37 4.0 260 8.0 1,630 2.4 23 3.4 155 5.7 806 

2.9 48 4.5 386 9.0 2,130 2.6 36 3.7 221 

3.0 61 5.0 523 2.8 54 4.0 296 

3.2 93 5.5 677

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.

26 

28 

27 

27 

26

25 

25 

26 

26 

24

24 

24 

24 

24 

24

26 

26 

26 

26 

26

26 

27 

30 

26 

26

26 

25 

25 

25 

25 

25

Nov.

25 

25 

24 

24

24

24 

25 

25 

25 

26

26 

26 

26 

26 

26

26 

26 

35 

202 

95

49 

169 

550 

136 

83

60 

49 

44 

40 

37

Dec.

35 

34 

40 

234 

429

404 

243 

174 

130 

102

84 

73 

66 

57 

53

49 

46 

44 

42 

40

39 

39 

37 

37 

38

40 

45 

45 

40 

39 

37

Jan.

36 

35 

34 

33 

33

33 

33 

33 

32 

31

31 

31 

31 

30 

29

28 

28 

28 

28 

28

28 

28 

28 

28 

28

29 

29 

36 

33 

33 

34

Feb.

33 

32 

33 

34 

34

35 

37 

38 

61 

225

230 

2,010 

776 

345 

226

170 

135 

109 

93 

79

70 

63 

57

53 

50

49 

49 

48

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

her. ...................................

mber. ...................................

lendar year 1946 

ary

ember. .................................

ter year 1946-47 ......................

Mar.

49 

84 

302 

379 

265

198 

159 

147 

165 

678

510 

338 

250 

198 

163

139 

122 

107 

96 

87

78 

73 

73 

66

60

57 

55 

72 

87 

205 

228

Apr.

187 

187 

405 

362 

310

426 

356 

304 

273 

228

194 

163 

143 

127 

116

105 

96 

90 

82 

78

72 

68 

63

60 

57

54 

52 

51

50 

49

Second 

foot-days

796 

1,978 

2,815

26,648

959 

5,174 

5,490 

4,808 

1,089 

843 

651 

667 

597

25,867

May

47 

45 

43 

42 

41

41 

40 

40 

38 

38

37 

37 

37 

36 

35

35 

34 

33 

32 

32

31 

31 

31 

30 

29

27 

29 

28 

27 

28 

35

Maximum

30 

550 

429

550

36 

2,010 

678 

426 

47 

54 

22 

22 

23

2,010

June

35 

32 

30 

28 

33

35 

39 

54 

42 

35

31 

28 

27 

26 

25

25 

26 

24 

24 

24

23 

23 

22 

22 

22

22 

22 

22 

21 

21

Minimum

24 

24 

34

19

28 

32 

49 

49 

27 

21 

20 

20 

17

17

July

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

21

21 

22 

22 

22 

22

22 

22 

22 

22 

22

22 

22 

22 

22 

22 

21

Aug.

22 

22 

22 

22 

21

21 

21 

22 

22 

22

22 

22 

22 

22 

22

22 

21 

21 

20 

20

21 

22 

22

21 

21

21 

21 

21 

22 

22 

22

Sept.

22 

21

21 

£1 

21

21 

21 

22 

22 

22

22 

20 

20 

23

20

20 

21 

19 

18 

18

17 

17 

17 

17 

18

19 

19 

19 

19 

23

 _ _ Runoff in Mean acre-feet

25.7 1,580 

65.9 3,920 

90.8 5,580

73.0 52,860

30.9 1,900 

185 10,260 

177 10,890 

160 9,540 

35.1 2,160 

28.1 1,670 

21.0 1,290 

21.5 1,320 

19.9 1,180

70.9 51,290

Peak discharge.- Nov. 19 (2 p.m.) 488 sec. -ft.; Nov. 23 (12:45 a.m.) 1,300 sec. -ft.; Bee. 5 (7 p.m

671 sec. -ft.,- J?eb. 12 (1:20 p.m.) 3,010 sec. -ft.; Mar. 3 (10:30 p. 

910 sec. -ft.

) 477 sec. -ft.; Mar. 10 (11 a.m.)
STONY CREEK BASIN 327

Stony Creek near Hamilton City, Cali'f.

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 1947; January 1941 to January 1946, at site 

a miles upstream; records comparable except for extremely low flows.

Extremes.- Maximum discharge during year, 3,170 second-feet Feb. 12 (gage height, 9.65 

feet); no flow for several months.

1941-47: 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 (capacity, 51,000 acrefeet), Stony Gorge Reservoir (capacity, 50,200 acre-feet). Many diversions above 

station for irrigation of Orland project. Bureau of Reclamation.

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. Nov. Dec. Jan. Feb.

0

o

o

o

0

0

0

o

o

o

o

1,480

1,06O

528

348

266

230

190

160

138

121

108

97

87

82

76

70

63

-

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July.... ...................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

63

74

561

1,050

524

359

28O

236

208

619

1,'050

651

485

408

362

326

294

269

249

227

205

187

174

165

125

101

76

74

72

80

148

Apr.

155

141

158

148

134

127

118

116

108

93

65

39

0'0

0

O

O

O

O

0

0

O

0

O

0

O

O

o

o

o

-

Secondfoot-days

0

O

O

51,051.4

O

5 1O4

9J7O2

1,402

0

0

O

0

0

16,208

May

Maximum

0

0

0

3,500

O

1.48O

1,050

158

O

0

0

o

0

1,480

June

Minimum

0

0

0

o

o

o

63

O

0

0

0

o

o

0

July Aug.

Mean

0

0

0

140

O

182

313

46.7

0

O

0

0

O

44.4

Sept.

Runoff in 

acre- feet

0

0

0

101,300

o

10,120

19,240

2.7SO

0

0

0

O

O

32,140
328 BUTTE CREEK BASIN 

Butte Creek near Chioo, Calif.

Location.- Water-stage recorder, lat. 39°44', long. 121°42', in NW£ sec. 36, T. 22 N., R.

 2~~E77~0.8 mile downstream from Little Butte Creek and 7.5 miles east of Chico. Altitude of gage, about 350 feet (from topographic map). ,

Drainage area.- 148 square miles.

Kecoras available.- November 1930 to September 1947.

Average discharge.- 16 years (1931-47), 385 second-feet.

Extremes.- Maximum discharge during year, 4,800 second-feet Feb. 12 (gage height, 7.00 

reet); minimum, 60 second-feet (regulated) Aug. 18, Sept. 1, 5.

1930-47: 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 (regulated) Aug. 19, 1939.

Remarks.- Records good. Butte Creek receives considerable water above station from West 

Branch Feather River by way of De Sabla and Centerville power plants. Pacific Gas & 

Electric Co. has furnished the following record of this flow for 1946-47.

Month

September. .............

Mean discharge 

(second- feet)

47.8

34.6

31.3

45.7

Runoff 

(acre-feet)

1,580

2,980

2,940

3,700

2,980

2,520

2,130

1,860

33,110

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.

97

102

110

104

94

100

97

97

92

97

92

94

87

97

97

102

102

102

97

87

104

110

120

107

104

110

104

104

102

104

107

Nov.

107

107

107

104

112

107

107

112

107

107

107

112

118

110

100

92

90

157

671

252

167

383

1,080

311

222

199

176

173

146

155

-

Dec.

149

146

155

428

807

675

425

311

260

199

244

229

199

199

189

183

183

180

180

176

J.80

173

173

161

170

176

212

196

176

170

173

Jan.

164

161

170

161

155

158

155

158

161

161

155

146

155

164

146

143

152

152

149

146

146

152

140

140

134

137

152

170

173

149

152

Feb.

140

161

155

152

155

155

152

164

197

461

451

3,160

1,410

734

571

485

381

550

311

294

272

264

236

248

240

233

240

236

_

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ................................. .

February ...................................

March. ............................ ........

April........ ..............................

May. .......................................

June .......................................

July.......... .............................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

236

360

694

642

485

408

355

350

437

1,470

992

740

616

571

479

473

420

414

420

386

365

355

365

340

335

316

316

398

485

910

817

Apr.

610

604

796

694

630

845

734

688

649

578

558

509

479

503

473

431

437

414

414

392

392

381

355

340

325

325

320

325

311

307

Seoondfoot-days

3 123

5 898

7*477

94, 346

4,757

12,008

15,950 

14 819

6J840

5 9 448

3) 818

2)344

85,971

May

289

285

298

256

252

256

276

256

252

240

233

226

226

222

219

212

209

209

199

192

186

186

183

192

158

186

186

189

189

176

202

Maximum

120

1,080

1,210

173

3,160

1,470

845

298

340

149

118 

120

3,160

June

212

216

202

186

176

186

226

340

264

226

199

205

183

170

176

180

189

173

155

152

170

126

137

149

143

149

149

140

120

149

Minimum

87

90

146

76

134

140

236

307

158

120

94 

66

68

66

July

143

132

129

118

146

112

149

126

120

120

134

134

129

132

129

120

123

118

120

97

137

118

110

112

118

123

94

129

126

120

100

Aug.

110

112

97

118

112

94

104

110

107

79

118

118

104

97

97

92

72

97

97

66

74

94

92

90

92

85

100

87

85

92

97

Mean

101

197

241

258

153

429

515

494

221

182

123

96. 4 

94.8

236

Sept.

90

92

87

83

85

76

79

94

107

90

92

83

68

83

94

104

79

76

104

104

118

94

107

112

100

107

112

100

120

104

Runoff in 

acre-feet

6, 190

11,700

14,830

187,100

9,440

23, 820

31 , 640

29 390 13)570

10,810

7,570

5 930 

5) 640

170,500

Peak discharge.- Nov. 19 (10:30 a.m.) 1,240 sec.-ft.; Nov. 23 (1:30 a.m.) 2,040 sec.-ft.; I 

6 p.m.) 1,080 sec.-ft.j Feb. 12 (1:15 p.m.) 4,800 sec.-ft.; Mar. 10 (11 a.m.) 1,810 sec.-ft.
FEATHER RIVER BASIN 329

Lake Almanor near Prattvllle, Calif.

Location - Staff gage, lat. 40°10 I 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 1947. 

In water-Supply Paper 881.

1913 to 1939, summary records only,

Extremes.- Maximum contents observed during year, 606,400 acre-feet May 8 (elevation,

4,471.99 feet); minimum observed, 368,900 acre-feet Nov. 17 (elevation, 4,459.69 feet).

1913-47: Maximum contents, 798,900 acre-feet June 9, 1928 (elevation, 4,480.5 feet); 

minimum, 5,230 acre-feet Feb. 5, 1918 (elevation, 4 416.1 feet).

Remarks.- Lake is formed by earth-fill dam; storage began in July 1913; dam raised to elevation 4,455 feet above mean sea level in 1917 and to 4,515 feet above mean sea level 

in 1927. Usable capacity, 649,800 acre-feet between elevations 4,400 feet (bottom of 

outlet to river) and 4,474 feet (present upper storage limit). Water is diverted by 

tunnel to Butt Valley Reservoir for use in Caribou power plant and some is released 

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. under general 

supervision of Geological Survey, obtained in connection with a Federal Power Commission 

project.

Contents, In thousands of acre-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.

382.9

382.4

381.7

380.8

380.0

379.3

378.4

377.4

376.1

374.9

373.9

373.2

372.3

371.3

370.5

370.5

371.3

372.2

373.2

373.9

374.9

376.7

377.7

378.6

379.8

380.8

382.0

382.9

383.4

384.0

384.7

Nor.

383.1

381.9

381.0

380.3

379.6

378.9

378.2

377.5

376.7

376.0

375.3

374.4

373.2

372.0

371.0

369.8

368.9

370.8

375.3

377.9

380.0

382.7

385.4

386.6

388.0

389.0

389.9

391.3

392.4

393.4

-

Dec.

394.3

395.5

397.7

401.0

404.0

405.8

406.9

408.0

409.0

410.3

411.7

412.6

413.7

415.3

416.8

418.2

419.3"

420.2

420.9

421.5

422.4

423.6

424.9

426.2

427.3

428.4

429.1

429.8

430.5

431.4

432.4

Jan.

434.4

435.3

436.2

437.3

438.0

439.0

440.2

441.5

442.3

443.2

444.3

445.2

446.0

446.9

448.0

448.9

449.7

450.6

451.5

452.6

453.6

454.5

455.4

456.3

457.5

458.8

459.9

461.6

463.3

464.0

465.1

Feb.

465.7

466.7

467.4

468.3

469.5

470.6

471.8

472.9

474.4

476.1

479.7

485.3

486.8

488.0

489.7

491.8

493.6

495.3

496.3

497.0

497.8

499.0

500.1

501.5

503.3

504.8

505.8

507.0

-

-

-

Mar.

508.7

511.3

513.9

516.2

517.4

518.4

519.4

521.0

523.0

525.5

527.3

528.7

529.3

528.9

528.1

528.1

528.3

527.9

527.1

526.5

526.1

525.5

525.7

526.9

528.7

529.9

531.3

533.9

536.9

540.2

542.8

Apr.

544.8

547.2

549.5

550.9

552.7

555.2

557.0

559.3

561.3

563.2

565.0

566.2

567.9

569.5

570.6

572.0

573.9

576.6

578.4

580.3

581.8

583.2

584.9

586.4

587.8

589.1

590.5

592.6

594.3

595.6

-

Hay

597.7

598.5

6OO.7

602.8

604.5

605.3

605.7

606.4

605.7

604.9

603.8

603.2

602.6

602.1

601.5

600.9

600.2

599.6

599.0

598.1

597.5

596.9

596.2

595.6

594.5

593.1

592.4

591.6

590.8

589.7

589.1

June

588.2

587.2

586.2

585.1

584.4

584.4

584.7

585.3

586.8

588.5

589.3

590.1

591.2

592.2

592.9

593.1

592.9

592.4

591.4

590.5

589.5

587.8

586.2

584.9

583.4

581.8

579.9

578.2

576.6

574.9

July

573.1

570.6

568.7

566.7

564.4

562.1

560.1

557.8

556.0

554.0

552:1

549.9

547.8

546.0

544.2

542.2

539.8

537.1

535.1

532.7

530.1

527.1

524.1

520.8

517.4

514.2

511.1

508.5

505.4

502.5

499.8

Aug.

497.8

495.5

492.8

489.9

487.4

485.3

482.6

479.5

477.1

475.0

472.7

470.2

468.0

465.5

462.9

460.6

458.0

455.4

452.6

450.2

448.0

445.6

443.6

441.2

438.8

436.9

434.6

432.2

429.8

427.8

.425.8

Sept.

423.8

422.2

420.0

417.7

415.5

413.8

411.9

410.3

408.5

407.1

405.7

403.9

402.1

400.3

397.8

394.8

394.1

393.8

392.9

391.8

390. g

388.9

386.9

385.7

384.7

383.6

382.6

381.3

379.6

377.7

Monthly elevation and contents, water year October 1946 to September 1947

Date

Nov. 30.................

Calendar year 1946....

July 31.................

Sept. 30. ................

Water year 1946-47 ....

Elevation 

(feet)

-

4,460.10

-

Contents 

(acre-feet)

383 400

384 700

-

507 000

542 8OO

595 600

377,700

-

Change In contents 

during month 

(acre-feet)

+39 00 O *

-34,100

+32 700

-1^4^ 900

+52 BOO

-48,100

-5,700
330 FEATHER RIVER BASIN

North Fork Feather River near Prattville, Calif.

Location.- Water-stage recorder and compound rectangular concrete weir, lat. 40"10', long.

iai°Ub', in SW£ 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 available.- March 1914 to September 1947 (tables of daily discharge for July 1921

to September iy36 include water- diverted through Almanor-Butt Creek tunnel). June 1905

to March 1914 at site near that of Almanor Dam. 

Average discharge.- 41 years (1905-10, 1911-47), 883 second-feet, including diversion

through Almanor-Butt Creek tunnel. 

Extremes.- Maximum discharge during year, 982 second-feet (regulated) July 24 (gage height,

4.yy reet); minimum, 3.8 second-feet (regulated) Feb. 1-11, 15-24, Mar. 2, 3. Extremes

do not include diversions through Almanor-Butt Creek tunnel.

1905-47: Maximum discharge, 10,000 second-feet Mar. 19, 1907, before construction

of dam (gage height, 16.2 feet, at former site), from rating curve extended above 3,700

second-feet; no flow (result of regulation) Apr. 15, 16. 1914, at times during January

to April 1919, and on Apr. 21, 1923. 

Remarks.- Records good. Flow regulated by Lake Almanor (see preceding p'age). Figures of

daily discharge show release from Lake Almanor down North Fork Feather River. Figures

of monthly discharge show total runoff also. Water is diverted for power from Lake

Almanor through Almanor-Butt Creek tunnel to Butt Creek. 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project.

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.

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

15

16 

16 

16 

217 

159 

19

Nov.

19 

19 

18 

18 

18

18 

a!8 

a!8 

a!8 

a!8

a!8 

a!8 

a!8 

a!8 

a!8

a!9 

a!8 

a!8 

a!8 

a!8

a!8 

alS 

a!8 

a!8 

a!8

 a!8 

18 

18 

18 

18

Dec.

19 

19 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19 

19

19 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20 

20

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febn 

Marc 

Apri 

May

June 

July 

Augu 

Sept

Wa

liber. ..............

.endar year 1946 . .

I.. ..........

St..... ............

ter year 1946-47 . .

Jan.

20 

a20 

a20 

a20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

a20

a20 

20 

20

20 

20

20 

20 

20 

20 

20 

20

Secondfoot days

842 

542 

604

96,831

620 

122.6 

272.5 

360 

700 

2,285 

18,438 

13,657 

7,155.3

50,598.4

Feb.

15 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

5.4 

5.4 

4.4 

3.8

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.8 

4.1

4.1 

4.1 

4.1

Mar.

4 

3 

4 

6 

7

7 

10 

9

9 

9

9 

9 

9 

9 

9

9 

9 

9 

9 

a9

a9 

9 

9 

9 

9

8 

8 

8 

9 

12 

12

Observed

Maximum

217 

19 

20

1,930

20 

15 

12 

12 

111 

348 

976 

813 

584

976

Minimum

15 

18 

19

13

20 

3.8 

3.8 

12 

12 

12 

362 

39B 

5.0

3.8

.1 

.8 

.4 

.2 

.8

.8

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

. 5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.0 

.0

.6

.2

.6 

.0

Apr.

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

May

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

42 

111 

101 

68 

66

 _ Runoff in Mean acre-feet

27.2 1,670 

18.1 1,080 

19.5 1,200

265 192,100

20.0 1,230 

4.38 243 

8.79 540 

12.0 714 

22.6 1,390 

76.2 4,530 

595 36,570 

602 37,010 

239 14,190

139 100,400

June

33 

a!2 

a!2 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12

37 

185 

286

286 

286 

286 

286 

348

July

388 

388 

444 

540 

540

493 

413 

398 

373 

373

373 

421 

476 

362 

388

g503 

g601 

631 

495 

658

687 

824 

761 

976 

948

904 

898 

898 

876 

g716 

g692

Diversion

acre-feett

29,670 

33,480 

1,790

436,800

1,410 

1,080 

20,730 

1,310 

46,100 

40,890 

56,320 

55,380 

54,150

342,300

Aug.

644 

701 

813 

626 

621

635 

658 

653 

566 

535

603 

603 

668 

701 

701

696 

696 

696 

692 

640

i580 

a462 

a398 

a455 

594

531 

501 

497 

497 

497 

497

Sept.

a497 

a480 

a413 

a413 

a413

413 

366 

316 

221 

152

129 

263 

584 

472 

395

326 

126 

32 

9.5 

9.0

9.0 

53 

246 

110 

5.4

5.4 

5.0 

86 

359 

247

Adjusted for 

diversion

Mean

510 

581 

48.6

869

43.0 

23.8 

346 

33.9 

772 

763 

1,511 

1,502 

1,149

611

Runoff in 

acre-feet

31 , 340 

34,560 

2,990

628,800

2,640 

1,320 

21,270 

2,020 

47,490 

45,420 

92,890 

92,390 

68,340

442,700

t Diversion through Almanor-Butt Creek tunnel, computed as difference in flow between the two 

stations on Butt Creek. There is some unmeasured inflow between the two stations.

a No gage-height.record; discharge computed on basis of recorded range in stage and records of 

release from Lake Almanor.

g Computed from graph based on recorded range in stage and powerhouse records.
FEATHER RIVER BASIN 331

North Fork Feather River at Big Bar, Calif.

Location.- Water-stage recorder, lat. 39°48', long. 121°27', in NE£ sec. 6, T. 22 N., R.

b E., 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. 

Kecpras available.- October 1939 to September 1947. February 1911 to August 1930 and

uctooer iaai to September 1937 at site 0.8 mile upstream. 

Average discharge.- 30. years (1911-12, 1913-20, 1921-30, 1931-37, 1939-47), 2,687 seccnd- feet. 

Extremes.- Maximum discharge during year, 17,500 second-feet Feb. 12 (gage height, 14.70

feet); minimum, 534 second-feet (regulated) Jan. 19.

1911-37, 1939-47: Maximum discharge, 66,900 second-feet Dec. 11, 1937 (gage height

29.7 feet at present site, from floodmarks), from rating curve extended above 34,000

second-feet by logarithmic plotting; minimum daily, 235 second-feet (regulated) Oct.

31, 1932. 

Remarks.- Records excellent except those for periods of no gage-height record which are

rair. Flow regulated by Lake Almanor (see p. 329), Bucks Creek Reservoir (see p. 338),

Butt Valley Reservoir, power plants, and diversions. 

Cooperation^- Water-s'tage recorder record furnished by Pacific Gas & Electric Co.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

1.8 590 4.0 1,650 7.0 4,330 

2.1 696 4.5 2,000 7.5 4,930 

2.4 808 5.0 2,380 8.5 6,280 

2.7 930 5.5 2,790 9.5 7,800 

3.0 1,060 6.0 3,260 11. O lO,3OO 

3.5 1,330 6.5 3,780 12.0 12,lOO

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.

1,380 

1,520 

1,520 

1,560 

1,620

1,230 

1,470 

1,450 

1,380 

1,350

1,350 

1,330 

1,250 

1,330 

1,400

1,390 

1,370 

1,350 

1,360 

1,310

1,280 

1,370 

1,310 

1,110 

1,080

995 

940 

1,030 

1,350 

1,740 

1,430

Nov.

1,220 

1,260 

1,080 

1,140 

1,140

1,240 

1,240 

1,070 

962 

820

934 

1,130 

1,130 

1,090 

1,050

844 

725 

1,450 

4,720 

2,480

1,470 

2,700 

6,370 

2,700 

2,080

1,530 

1,250 

1,000 

901 

852

Dec.

808 

770 

793 

2,040 

3,800

3,930 

2,700 

2,120 

1,610 

1,350

1,240 

1,220 

1,160 

988 

930

917 

905 

812 

793 

836

848 

800 

755 

848 

804

922 

1,040 

988 

856 

836 

789

Jan.

728 

759 

736 

631 

597

804 

793 

774 

732 

743

707 

631 

660 

732 

774

789 

703 

671 

624 

759

755 

747 

674 

707 

671

617 

743 

934

1,060 

1,020 

892

Feb.

696 

646 

812 

1,220 

1,230

1,390 

1,360 

923 

1,010 

1,350

1,460 

11,900 

9,470 

6,340 

4,160

3,200 

2,740 

2,280 

2,320 

2,020

1,760 

1,450 

1,320 

1,490 

1,350

1,530 

1,650 

1,570

Month

Octo 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ...................................

lendar year 1946 ......................

ary

h. .....................................

1. .....................................

ter year 1946-47 ...............

Mar.

1,430 

2,420 

3,310 

3,200 

2,770

2,380 

2,440 

2,040 

2,180 

6,080

5 ',190 

4,130 

3,560 

3,280 

2,970

2,870 

3,140 

3,410 

3,360 

3,060

3,060 

2,980 

2,840 

2,920 

2,880

2,600 

2,640 

3,260 

3,680 

5,050 

4,560

Apr.

4 

3 

3 

3 

2

2 

2 

3 

3 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2

1

1 

1 

1 

2

1

Secondfoot-days

41,555 

47,578 

39,208

937,151

23,167 

68,647 

99,690 

76,800 

54,650 

48,330 

61,460 

62,670 

46,490

670,245

Peak discharge.- Nov. 23 (1:30 a.m.) 10.400 sec. -ft.:

,000 

,350 

,460 

,190 

,880

,970 

,920 

,020 

,000 

,810

,800 

,550 

,320 

,650 

,680

,800 

,840 

,510 

,230 

,080

,240 

,210 

,130 

,040 

,960

,710 

,610 

,890 

,030 

,920

May

2,180 

2,380 

2,120 

1,870 

2,130

2,120 

2,070 

1,960 

1,900 

1,400

1,250 

1,490 

1,600 

1,610 

1,640

1,680 

1,540 

1,480 

1,760 

1,710

1,650 

1,630 

1,630 

1,740 

1,710

1,760 

1,740 

1,770 

1,710 

1,570 

1,850

Maximum

1,740 

6,370 

3,930

8,100

1,060 

11,900 

6,080 

4,000 

2,380 

2,100 

2,320 

2,210 

1,950

11,900

June

1,620 

1,640 

1,380 

1,460 

1,460

1,460 

1,680 

2,100 

1,630 

1,380

1,140 

1,350 

1,470 

1,280 

1,350

1,480 

1,530 

1,620 

1,720 

1,630

1,650 

1,600 

1,620 

1,760 

2,060

1,940 

1,910 

1,820 

1,720 

1,870

Minimum

940 

725 

755

725

597 

646 

1,430 

1,610 

1,250 

1,140 

1,760 

1,710 

1,060

597

July

2,000 

1,940 

1,910 

1,870 

1,880

1,890 

1,890 

1,850 

1,780 

1,780

1,780 

1,790 

1,760 

1,820 

1,770

1,910 

1,950 

2,160 

1,870 

1,910

2,080 

2,270 

2,270 

2,160 

2,200

2,130 

1,980 

2,080 

2,180 

2,320 

2,280

Aug.

2,170 

2,150 

1,970 

2,080 

2,100

2,100 

2,120 

2,120 

2,110 

1,890

1,990 

2,100 

2,110 

2,180 

2,210

2,180 

2,160 

2,150 

2,190 

2,160

2,060 

1,900 

1,730 

1,710 

1,940

1,960 

1,870 

1,850 

1,920 

1,770 

1,720

Mean

1,340 

1,586 

1,265

2,568

747 

2,452 

3,216 

2,560 

1,763 

1,611 

1,983 

2,022 

1,550

1,836

Sept.

1,730 

1,920 

1,850 

1,830 

1,820

1,820 

1,710 

1,590 

1,510 

1,510

1,480 

1,460 

1,950 

1,940 

1,740

1,750 

1,450 

1,240 

1,220 

1,160

1,120 

1,310 

1,530 

1,590 

1,320

1,330 

1,360 

1,060 

1,510 

1,680

Runoff in 

acre- feet

82,420 

94,370 

77,770

1,859,000

45,950 

136,200 

197,700 

152,300 

108,400 

95,860 

121,900 

124,300 

92,210

1,329,000

Feb. 12 (3:30 p.m.) 17,500 aec.-ft.

Mote.- No gage-height record Oct. 1 to Nov. 5, Apr. 2-4,- discharge computed on basis of unpublished 

records at Big Bend powerhouse.
332 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.

Kecorgs available.- October 1934 to September 1947. January 1902 to September 1934 at 

site at Oroville, 5 miles downstream.

Average discharge^- 45 years, 5,812 second-feet.

.Extremes. - Maximum discharge during year, 45,600 second-feet Feb. 12 (gage height, 41.9 

reet); minimum, 907 second-feet (regulated) Sept. 28 (gage height, 5.02 f.eet).

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, regulated), Nov. 9, 1931 (gage 

height, -1.7 feet.

1934-47 near Oroville: Maximum discharge, 185,000 second-feet Dec. 11, 1937 (gage 

height, 73.6 feet, from floodmarks), from rating curve extended above 62,000 secondfeet on basis of velocity-area studies and verified by slope-area computation; minimum, 462 second-feet Dec. 10, 1934 (gage height, 3.55 feet).

Remarks.- Records excellent. Flow regulated by power plants and Lake Almanor (see p.329), 

Bucks (see p. 338), Butt Valley, and smaller reservoirs.

Rating tables, water year 1946-47 

Oct. 1 to Feb. 12

ge height, in feet, and discharge, in second-feet) 

Feb. 13 to Sept. 30

5 -l 985 7.1 1,880 18.0 9,300 5.8 1,200 6.8 1,650 

5.5 1,130 8.0 3,380 20.0 11,200 6.2 1,380 7.1 1,790 

5.8 1,250 9.0 2,940 23.0 14,300 6.5 1,520 8.0 3,250 

6.1 1,380 11.0 4,140 36.0 17,700 ,,.,., 

6.3 1,470 13.0 5,370 30.0 33 900 Note.- Same as preceding table 

6.8 1,720 16.0 7,620 35.0 30,600 13.0 feet.

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

Oot.

1,580 

1,800 

1,780 

1,840 

1,730

1,680 

1,640 

1,700 

1,620 

1,540

1,560 

1,560 

1,500 

1,490 

1,640

1,590 

1,620 

1,570 

1,630 

1,530

1,530 

1,610 

1,730 

1,470 

1,370

1,290 

1,200 

1,280 

1,550 

1,960 

1,660

Nov.

1,510 

1,500 

1,420 

1,410 

1,410

1,460 

1,540 

1,360 

1,250 

1,200

1,200 

1,370 

1,310 

1,360 

1,360

1,190 

1,010 

1,660 

8,950 

6,140

3,000 

3,790 

15,400 

6,090 

4,090

3,170 

2,640 

3,140 

1,810 

1,660

Dec.

» 1,560 

1,420 

1,490 

4,310 

8,330

8,460 

5,790 

4,410 

3,750 

3,060

2,660 

2,470 

3,360 

3,080 

1,910

1,810 

1,790 

1,680 

1,580 

1,570

1,570 

1,570 

1,440 

1,470 

1,570

1,730 

3,060 

1,980 

1,800 

1,660 

1,540

Jan.

1,430 

1,480 

1,530 

1,340 

1,330

1,400 

1,460 

1,430 

1,380 

1,360

1,320 

1,350 

1,240 

1,330 

1,330

1,330 

1,240 

1-.220 

1,210 

1,120

1,340 

1,260 

1,370 

1,190 

1,350

1,160 

1,370 

1,630 

1,650 

1,610 

1,550

Feb.

1,310 

1,200 

1,400 

1,720 

1,800

2,030 

2,080 

1,670 

1,780 

3,380

2,640 

39,300 

32,700 

13,900 

9,940

7,540 

6,040 

5,230 

4,580 

4,380

3,860 

3,370 

3,080 

3,130 

3,930

3,030 

3,240 

3,130

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

WAV

June 

July 

Augu 

Sept

Wa

ber.. .......................... .......

mber. ..................................

mber. ...................................

lendar year 1946 

ary

uary. ..................................

1........ ..............................

ember. .................................

ter year 1946-47 ......................

Mar.

2,860 

5,040 

7,180 

6,740 

5,680

4,980 

4,630 

5,000 

5,000 

15,300

13,200 

9,640 

8,140 

7,350 

6,780

6,460 

6,480 

6,780 

6,930 

6,380

6,080 

5,870 

7,140 

6,100 

5,850

5,540 

5,230 

6,390 

8,100 

13,100 

11,500

Apr.

9,520 

8,400 

9,070 

7,900 

6,980

7,160 

6,740 

6,450 

6,630 

6,150

5,990 

5,870 

5,510 

5,530 

5,890

5,960 

6,100 

5,610 

5,190 

4,860

4,700 

4,680 

4,380 

4,360 

4,030

3,870 

3,610 

3,700 

3,840 

3,790

Secondfoot-days

49,320 

82,300 

80,880

1,633,690

41,850 

150,190 

231,340 

173,360 

89,450 

73,430 

68,460 

66,730 

50,780

1,145,970

May

3,810 

4,330 

4,370 

3,920 

3,710

3,930 

3,860 

3,630 

3,410 

3,860

2,490 

3,580 

3,760 

3,680 

3,600

2,650 

2,450 

3,400 

2,480 

2,520

3,480 

2,410 

3,380 

2,400 

3,370

2,340 

3,350 

3,370 

3,320 

2,250 

2,360

Maximum

1,960 

15,400 

8,460

17,200

1,650 

29,300 

15,300 

9,530 

4,370 

5,020 

3,480 

2,400 

3,060

39,300

June

2,930 

2,670 

3,350 

2,170 

3,140

3,400 

2,800 

5,020 

3,700 

2,890

3,280 

3,280 

3,390 

3,060 

2,080

3,120 

2,300 

3,350 

3,180 

3,130

2,070 

3,040 

2,080 

2,150 

2,280

2,370 

3,250 

3,140 

3,090 

2,130

Minimum

1,300 

1,010 

1,430

1,010

1,120 

1,300 

2,860 

3,610 

2,250 

2,040 

2,060 

1,860 

1,200

1,010

July

2,250 

2,180 

2,170 

2,170 

3,160

2,150 

2,130 

2,130 

2,070 

3,060

3,060 

3,060 

3,060 

3,060 

3,080

3,100 

2,280 

2,330 

3,170 

3,090

2,280 

2,390 

3,480 

2,360 

3,360

2,320 

3,060 

2,350 

3,340 

3,340 

2,420

9.0 2,820 

11.0 4,060 

13.0 5,370

above

Aug.

2,400 

3,300 

2,020 

2,330 

2,290

3,360 

2,350 

2,370 

2,340 

3,000

2,170 

3,340 

3,230 

2,280 

3,340

2,340 

2,330 

2,380 

2,390 

3,280

3,040 

2,040 

1,880 

1,870 

2,030

3,100 

1,980 

1,980 

3,000 

1,930 

1,860

Mean

1,588 

2,743 

3,609

4,476

1,350 

5,364 

7,140 

5,745 

2,885 

3,414 

3,208 

2,153 

1,693

3,140

Sept.

1,860 

2,050 

2,030 

1,880 

1,900

1,900 

1,860 

1,740 

1,700 

1,700

1,650 

1,650 

1,960 

3,060 

1,860

1,930 

1,640 

1,450 

1,480 

1,390

1,340 

1,520 

1,700 

1,720 

1,480

1,460 

1,520 

1,300 

1,570 

1,790

Runoff in 

acre-feet

97,630 

163,200 

160,400 '

3,340,000

83,010 

397,900 

439,000 

341,900 

177,400 

143,600 

135,800 

132,300 

100,700

3,273,000

Peak discharge.- Nov. 19 (3 D.ro.) 16,200 sec. -ft.; Nov. 23 (6 a.m.) 23.500 see. -ft.: Dec. 5

(6 p.m.) 12,000 sec.-ft.; Feb. 12 (5 p.m.) 45,600 sec.-ft.; Mar. 10 (7 p.m.) 18,300 sec.-ft.; 

Mar. 30 (3 to 4 a.m.) 14,200 sec.-ft.
FEATHER RIVER BASIN 333

Feather River at Nicolaus, Calif.

Location.- Water-stage recorder, lat. 38°54'00", long. 121°35'05", at Nicolaue, Sutter 

County, 0.4 mile downstream from highway bridge1 . 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 1947 in reports of Geological Survey. 1939-47 in reports of Division 

of Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 34,400 second-feet Feb. 14 (gage height, 39.29 

feet); minimum, 123 second-feet July 23 (gage height, 20.08 feet).

1943-47: Maximum discharge, 94,000 second-feet Dec. 30, 1945 (gage height, 45.23 

feet).

1921-47: 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 regulated by reservoirs and power plants above sta-tion. 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.

Rating tables, water year 1946-47, except period of backwater effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Apr. 24 Apr. 25 to Sept. 30

21.5 93O 28.0 9,300 2O.O 95 21.9 1,260

22.1 1,440 32.0 16,300 20.2 17O 22.8 2,070

22.8 2,07O 36.0 24,500 20.4 265 24.0 3,450

£3.5 2,800 38.0 29,700 2O.7 435 25.7 5,650

24.1 3,490 29.3 34,500 21.3 810

26. O 6,1OO

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.

1,180

1,390

1,560

1,630

1,630

1,600

1,550

1,450

1,490

1,49O

1,440

1,390

1,380

1,370

1,320

1,440

1,560

1,580

1,590

1,480

1,420

1,410

1,460

1,480

1,380

1,240

1,150

1,150

1,110

1,290

1,580

Nov.

1,660

1,470

1,350

1,330

1,230

1,320

1,270

1,290

1,230

1,150

1,020

954

1,030

1,240

1,290

1,330

1,400

1,290

1,480

7,400

7,410

4,350

5,130

12,200

8,340

5,440

4,390

3,780

3,310

2,960

-

Dec.

3,050

3,O7

3,010

3,370

6,180

12,400

15,000

11,300

8,210

6,850

5,640

4,930

4,390

4,140

3,870

3,550

3,360

3,250

3,110

3,020

3,000

2,910

2,890

2,720

3,100

3,240

3,310

3,600

3,470

3,260

3,090

Jan.

2,910

2,720

2,660

2,600

2,550

2,410

2,390

2,500

2,490

2,410

2,410

2,390

2,340

2,390

2,320

2,310

2,310

2,250

2,240

2,160

2,010

2,190

2,210

2,190

2,110

2,170

2,120

2,240

2,570

2,680

2,620

Feb.

2,670

2,450

2,170

2,3OO

2,660

2, BOO

2,990

3,040

2,860

2,840

3,900

6,420

26,3OO

33,100

o25,OOO

017,500

013,600

11,400

9,610

8,420

7,700

6,900

6,070

5,500

5,310

4,940

4,830

5,030

.

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

4,960

5,4OO

8,880

15,700

14,000

11,300

9,610

8,710

8,950

14,300

25,900

24,900

19,600

15,700

13,500

12,200

11,600

11,300

11,300

11,200

alO,700

alO,300

alO,800

all , 800

all, 000

a\0,300

a9,800

a9,800

a!2,700

a!6,100

a!9,300

Apr.

a!7,500

a!5,60O

15,60O

a!5,80O

a!4,100

a!3,100

a!2,500

a!2,200

a!2,000

all, 700

all, 200

aio,3oo

a8,980

a8,900

a8, 980

a9,140

9,400

9,640

8,980

8,100

7,480

7,120

6,790

6,OOO

5,590

5,150

4,690

4,280

4,160

4,070

-

May

3,690

3,610

4,030

4,690

a4,520

a3,980

a3,760

a3,620

a3, 390

2,810

2,310

1,850

1,620

1,490

1,430

1,310

1,210

1,080

1,120

1,070

1,020

950

922

894

852

831

810

824

880

908

943

forays "a*1"""1

44,190 1,630

89,054 12,200

146,300 15,000

2,381,311 49,000

73,870 2,910

228,310 33,100

391,610 25,900

289,050 17,500

62,524 4,690

37,473 4,490

8,460 405

X2 423 543

2o) 581 1,220

1,403,845 33,100

June

936

1,440

1,680

1,500

1,200

1,040

1,120

1,900

4,490

4,030

3,050

2,180

1,670

1,430

1,250

1,010

873

752

686

693

654

628

585

519

435

393

364

353

320

292

-

Minimum

1.11C

95'

2,72C

35

2, OK

2,17C

4,96(

4,07(

81C

29

15

22

24!

15i

July

260

270

282

276

336

314

287

314

304

292

, 292

250

230

188

170

174

188

197

230

292

250

158

158

287

405

381

399

381

287

260

348

Aug.

387

447

459

435

381

364

417

441

417

411

405

331

304

423

447

501

519

501

117

519

537

543

435

593

298

230

225

526

292

509

309

Mean

) 1,425

t 2,968

) 4,719

3 6,524

) 2,383

> 8,154

) 12,630

) 9,635

) 2,017

3 1,249

1 273

5 401

> 686

3 3,846

Sept.

304

260

245

314

375

342

326

331

326

309

353

417

501

561

859

950

1,030

1,080

936

838

866

790

752

971

1,200

1,220

1,080

1,060

1,070

915

Runoff in 

acre- feet

87,650

176,600

290,200

4,723,000

146,500

452,800

776,700

573, 300

124,000

74,330

16,780

24,640

40,820

2,784,000

a No gage-height record; discharge 

Bend.

o Backwater from Sacramento River; 

at' Shanghai Bend.

computed on basis of unpublished records for station 

discharge computed on basis of unpublished records for station
334 FEATHER RIVER BASIN

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif.

Location.- Water-stage recorder, lat. 40°12', long. 121°12', In NWv sec. 16, T. 27 N., 

K. 7 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 1947.

Average discharge.- 10 years (1936-37, 1938-47), 65.7 second-feet.

Extremes.- Maximum discharge during year, 429 second-feet Feb. 12 (gage height, 4.34 

reet); minimum, 12 second-feet July 23.

1936-37, 1938-47: 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. No storage above station. Wallack ditch, above station, occasionally diverts several second-feet into Yellow Creek Basin.

Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by 

Facil'ic Uas & Electric Co., obtained in connection with a Federal Power Commission 

project.

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.

24

25

25

24

 4

24

24

25

24

24

24

25

26

26

25

26

26

26

26

26

25

30

27

25

25

25

25

26

26

26

26

Nov.

26

26

25

25

25

25

25

25

25

25

25

25

26

26

26

26

27

57

158

55

46

97

174

59

48

44

43

41

40

39

-

Dec.

38

38

40

56

82

60

51

49

47

43

42

39

39

37

37

36

33

28

36

35

33

34

33

35

39

41

43

32

36

30

30

Jan.

38

31

26

27

30

31

29

28

28

27

27

30

31

30

25

27

27

27

31

31

30

30

30

32

32

36

3431-

32

33

32

Feb.

32

31

32:-n

31

31

31

32

34

36

45

290

156

87

70

65

57

55

54

53

52

51

52

53

52

53

53

so

_

«

-

Month

December ....................................

Calendar year 194G ......................

April ......................................

May............/...........................

July. ......................................

September. .................................

Water year 1946-47 ......................

Mar.

52

77

54

60

54

51

49

49

54

136

99

82

78

81

84

86

90

92

90

90

87

93

115

88

81

77

77

102

120

149

119

Apr.

106

102

104

94

92

94

86

88

88

81

82

84

87

92

96

101

101

93

90

88

84

77

71

70

68

67

68

71

67

66

-

Secondfoot-days

785

1 334

1,252

20,327

933

448

14,587

Hay

67

67

66

62

59

57

56

53

52

49

47

46

44

42

37

34

30

30

29

28

27

27

27

27

26

26

28

28

27

26

32

Maximum

30

82

200

38

2 9O

17

290

June

34

32

27

27

28

30

38

41

40

30

27

26

25

24

23

23

25

23

22

22

21

21

21

21

20-

20

21

21

20

20

-

Minimum

25

28

17

25

49

14

13

July

19

18

18

18

18

18

18

18

17

17

la

18

17

17

17

15

15

15

14

14

14

14

13

14

13

14

14

14

14

14

14

Aug.

14

14

15

15

15

15

14

15

15

16

16

14

15

15

15

16

16

16

16

16

16

16

16

15

15

15

15

15

16

16

15

Mean

40.4

55.7

3O 1

14.9

40.0

Sept.

15

15

14

14

14

14

15

15

15

15

15

14

15

14

15

15

15

17

17

16

15

15

14

15

15

15

15

15

15

15

Runoff in 

acre-feet

2,480

40,320

1 530

938

889

28,930

Peak discharge.- Nov. 19 (1 p.m.) 258 sec.-ft.; Nov. 23 (4 a.m.) 314 sec. ft. 

429 sec.-ft.5 Mar. 29 (11:SO p.m.) 2O7 sec.-ft.

Feb. I? ( ,:30 p.m.)
FEATHER RIVER BASIN 335 

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif.

Location.- Water-stage recorder and concrete control, lat. 40°10', long. 121°11', in 

NWf~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 1947.

Extremes.- Maximum discharge during year, 1,080 second-feet (regulated) Nov. 19 (gage 

neignt, 3.06 feet); minimum, 39 second-feet Jan. 31.

1938-47: Maximum discharge, 2,170 second-feet Mar t 30, 1940 (gage height, 4.37 feet); 

minimum, 36 second-feet June 13, Dec. 3, 1940.

Remarks.- Records excellent. Difference in flow at this station and at station above 

tunnel (see preceding page) shows amount of diversion from Lake Almanor to Butt Creek 

and Butt Valley Reservoir, -plus natural local inflow from 3 square miles of intervening 

drainage area.

Cooperation.- Water-stage recorder graph, furnished by Pacific das & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

0.5 38 1.1 144

.6 50 1.4 228

.7 64 1.7 335

.9 10O 2.0 464

2.4 665

2.8 905

3.0 1,040

Discharge, in second-feet, water year October 1946 to September 1947

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.

938

938

938

938

931

931

938

938

938

938

931

931

924

924

918

532

63

61

60

58

60

66

57

46

46

46

46

46

46

48

471

Nov.

918

924

924

924

924

918

918

918

918

919

918

918

912

912

912

912

918

938

722

83

69

106

192

85

72

71

67

67

67

67

-

Dec.

66

66

67

85

113

90

79

76

76

71

71

69

67

66

64

64

63

57

66

64

64

64

64

66

69

72

74

61

66

58

57

Jan.

66

57

53

56

60

61

58

58

58

57

57

57

56

54

49

51

51

51

53

53

48

45

45

48

46

51

49

46

50

51

5O

Feb.

49

50

51

49

49

49

49

50

53

54

59

296

193

113

94

89

81

76

76

72

71

69

69

71

71

69

72

67

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ............_.........

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July... ....................................

August .....................................

September. .................................

Water year 1946 47 ......................

Mar.

69

98

78

81

72

67

66

66

71

152

12}

102

548

991

991

991

998

998

998

991

991

991

1,020

642

108

100

96

123

139

170

139

Apr.

Secondfoot-days

15,746

18 , 212

2 155

24O, 7O8

1,645

2,211

13 f 068

3 1 216

24,498

28 , 885

27 749

187,166

128

123

123

113

110

115

108

110

113

106

106

106

108

113

119

123

126

117

113

110

104

98

92

90

89

89

90

94

90

90

-

Hay

92

94

94

92

89

558

938

944

944

944

944

944

950

95O

944

944

944

938

938

931

938

931

931

931

931

931

938

938

938

931 .

944

Maximum

938

113

1,050

66

296

1,020

128

950

957

938

___ yoo

1.O20

June

944

944

944

938

944

950

957

591

83

69

64

64

57

49

49

574

950

950

944

944

938

938

938

938

938

938

938

938

938

938

Minimum

46

67

57

46

45

49

66

89

49

918

912

912

45

July

938

938

938

931

931

938

931

931

938

938

931

931

931

931

938

938

938

938

938

938

938

938

931

924

918

924

924

924

924

918

918

Aug.

918

918

918

918

918

918

912

918

918

912

912

912

912

912

912

918

918

918

918

918

918

918

918

918

918

918

918

912

912

912

912

Sept.

918

924

924

924

924

924

924

931

931

938

938

938

938

938

938

931

931

924

924

931

924

924

918

918

912

912

912

912

912

912

-

Mean Runoff in Mean acre-feet

508 31 230

607 36^120

69 .5 4, 270

659 477,400

53.1 3,260

79.0 4,390

422 25 920

107 elsso

79O 48,590

713 42,420

932 57,290

916 56,310

925 55,040

513 371,200
336 FEATHER RIVER BASIN

Indian Creek near Crescent Mills, Calif.

Location.- Water-stage recorder, lat. 40°05', long. 120°56', in Sw£ sec. 25, T. 26 N., R. 

9 K., 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 1947. January 1906 to December 1909 and 

September 1911 to March 1918 at site 800 feet upstream.

Average discharge.- 26 years (1906-9, 1911-17, 1930-47), 521 second-feet.

Extremes.- Maximum discharge during year, 4,510 second-feet Feb. 13 (gage height, 9.67 

reet); minimum, 3.2 second-feet Aug. 15.

1906-9; 1911-18; 1930-47: Maximum discharge, 14,000 second-feet Feb. 28, 1.940 

(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. Diversions above station for irrigation in Indian and Genesee 

valleys.

Rating table, water-year 1946-47, except period of Ice effect 

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Aug. 17 to Sept. 30)

1.2 3.8 2.0 41 3.5 246 6.0 1,300 

1.3 5.7 2.2 58 4.0 374 6.5 1,640 

1.4 8.6 2.4 80 4.4 505 7.0 2,020 

1.5 12 2.6 104 4.8 670 8.0 2,880 

1.7 20 2.8 130 5.2 855 9.1 3,930 

1.8 26 3.1 173 5.6 1,065

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.

21 

51 

51 

38 

36

37 

38 

38 

37 

46

43 

43 

43 

44 

44

48 

47 

47 

44 

46

47 

51 

54 

52 

35

35 

42 

50 

59 

52 

52

Nov.

53 

55 

56 

56 

57

59 

60 

65 

61 

67

69 

69 

70 

76 

77

74 

73 

92 

514 

715

407 

300 

955 

1,110 

751

443 

315 

250 

222 

198

Dec.

184 

173 

173 

460 

666

830 

733 

549 

420 

338

287 

255 

238 

224 

213

198 

178 

154 

148 

158

160 

161 

162 

162 

175

184 

205 

186 

160 

155 

127

Jan.

143 

130 

108 

103 

108

bios 

b!05 

b!05 

blOS 

bios

blOS 

blOS 

b!06 

blOS 

104

91 

99 

91 

97 

99

102 

105 

107 

112 

114

129 

138 

133 

126 

127 

125

Feb.

118 

124 

133 

134 

141

141 

148 

157 

167 

194

238 

1,240 

3,880 

2,680 

1,600

1,160 

900 

715 

601 

505

446 

395 

366 

340 

326

318 

313 

302

Month

Octo 

Nove

Dece

Ca

janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

nber. ...................................

lendar year 1946 

&ry

h.. ....................................

St. ....................................

ember ..................................

ter year 1946-47 ......................

Mar.

292 

446 

656 

679 

585

509 

463 

453 

467 

751

1,090 

1,190 

1,040 

900 

815

769 

760 

756 

738 

697

656 

621 

697 

769 

697

621 

569 

569 

617 

760 

835

Apr.

787 

746 

764 

724 

656

661 

638 

617 

625 

613

573 

533 

505 

505 

533

553 

577 

577 

549 

525

509 

480 

439 

404 

383

371 

371 

366 

354 

349

Secondfoot-days

1,371 

7,369 

8,416

155,711.1

3,443 

17,782 

21,467 

16,287 

4,577 

2,584 

354.2 

202.5 

185.9

84,038.6

Peak discharge.- Nov. 24 (7 a.m.) i r l7o see. -ft. Pe>h.

May

332 

324 

315 

297 

275

244 

224 

203 

176 

161

157 

152 

130 

125 

121

117 

116 

107 

102 

88

79 

78 

84 

71 

70

69 

70 

88 

69 

66 

67

Maximum

59 

1,110 

830

2,500

143 

3,880 

1,190 

787 

332 

222 

20 

9.2 

8,3

3,880

June

97

130 

126 

104 

93

100 

130 

213 

222 

187

158 

131 

116 

104 

80

57 

57 

52 

49 

48

48 

49 

43 

40 

37

28 

26 

23 

18 

18

Minimum

21 

53 

127

9.3

91 

118 

292 

349 

66 

18 

7.0 

3.8 

5.1

3.8

July

18 

19 

18 

19 

20

18 

14 

13 

14 

13

12 

11 

8.9 

9.2 

8.6

8.3 

7.6 

8.3 

9.9 

8.9

8.0 

7.0 

7.0 

8.0 

7.4

8.9 

8.3 

8.3 

12 

13 

7.6

Aug.

6.7 

6.7 

7.0 

7.4 

7.6

8.0 

7.4 

6.0 

5.7 

6.7

7.4 

7.4 

7.4 

5.5 

3.8

4.6 

7.4 

7.6 

7.4 

6.4

6.4 

6.7 

6.0 

5.7 

5.7

6.0 

5.5 

5.3 

5.5 

6.4 

9.2

Sept.

7.6 

8.3 

6.7 

5.5 

5.7

5.7 

5.7

6.0 

6.0 

6.0

6.7 

6.7 

6.4 

6.0 

5.3

5.1 

5.7 

5.5 

6.4 

6.2

6.4 

5.3 

5.1 

5.1 

5.7

6.2 

6.7 

7.6 

7.0 

7.6

! -.., Runoff in Mean acre-feet

44.2 2,720 

246 14,620 

271 16,690

427 308,800

111 6,830 

635 35,270 

692 42,580 

543 32,300 

148 9,080 

86.1 5,130 

11.4 703 

6.53 402 

6.20 369

230 166 . 700

13 (1:30 p.m.) 4,510 see. -ft.: Mar. 12

b Stage-discharge relation affected by Ice.
FEATHER RIVER BASIN 337

Spanish Creek at Keddle, 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 Keddle. " 

Altitude of gage, about 3,250 feet (from topographic map).

Drainage area.- 184 square miles.

Records available.- October 1933 to September 1947. October 1911 to September 1933 at site 

1.2 miles downstream.

Average discharge.- 14 years (1933-47), 249 second-feet.

Extremes.- Maximum discharge during year, 3,790 second-feet Feb. 12 (gage height, 6.94 feet); 

minimum, 12 second-feet Aug. 9-11.

1911-47: 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.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

0.9 11 1.5 34 2.4 132 3.9 780 

1.0 14 1.7 46 2.6 179 4.5 1,250 

1.1 17 1.9 61 2.8 238 5.0 1,7OQ 

1.2 20 2.1 83 3.1 348 5.9 2,600 

1.3 24 2.2 97 3.5 535

Discharge, In second-fee t, 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.

30 

36 

39 

39 

36

35 

37 

41 

41 

41

39 

38 

38 

39 

39

42

41 

41 

41 

40

39 

42 

52 

45 

42

42 

42 

42 

44 

44 

44

Nov.

44 

44 

43 

44 

44

45 

46 

46 

45 

45

46 

47 

46 

49 

48

47 

48 

64 

673 

334

152 

186 

1,110 

285 

174

139 

119 

108 

99 

93

Dec.

89 

84 

82 

432

714

608 

332 

229 

179 

159

141 

128 

121 

115 

108

alOS

aioo 

a95 

a90 

a90

a90 

a90 

a9o 

89 

99

108 

162 

130 

117 

105 

a!02

Jan.

99 

91 

76 

81 

83

86 

78 

77 

75 

76

73 

75 

72 

73 

58

64 

68 

66 

70 

68

67 

66 

68 

70 

69

76 

77 

75 

73 

75 

72

Feb.

70 

73 

79 

86 

83

90 

97 

99 

102 

164

156 

2,510 

1,500 

SOS 

408

321 

265 

229 

199 

179

166 

152 

143 

136 

130

128 

136 

130

Month

Octo 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

her. ...................................

mber. ...................................

lendar year 1946 ......................

1. .....................................

St............. ........................

ember ..................................

ter year 1946-47 ......................

Mar.

132 

377 

505 

390 

305

255 

229 

222 

245 

1,220

770 

505 

408 

361 

340

336 

332 

321 

317 

283

258 

262 

365 

279 

241

222 

210 

313 

404 

801 

668

Apr.

505 

465 

500 

412 

365

386 

356 

340 

328 

298

279 

265 

258 

265 

265

269 

269 

245 

229 

219

213 

193 

179 

174 

166

164 

166 

162 

152 

152

Seccndf cot-days

1,251 

4,313 

5,183

67,008

2,297 

8,439 

11,876 

8,239 

2,740 

1,930 

631 

477 

553

47,929

Peak discharge.- Nov. 19 (3 p.m.) 1,160 sen. -ft-.. Nnv

Bay

ISO 

159 

159 

150 

139

130 

128 

121 

119 

110

102 

97 

93 

81 

78

75 

74 

72 

69 

62

54 

41 

40 

42 

42

44

56 

72 

63 

58 

60

Maximum

52

1,110 

714

1,110

99 

2,510 

1,220 

505 

159 

182 

30 

20 

23

2,510

June

91 

84 

78 

69 

67.

78 

96 

182 

145 

110

91 

79 

71 

65 

55

51 

56 

49 

44 

41

37 

37 

36 

34 

30

30 

30 

31 

32 

31

Minimum

3C 

43 

82

16

58 

7C 

132 

152 

4C 

30 

14 

12 

13

12

July

30 

24 

26 

26 

24

25 

25 

24 

22 

20

20 

20 

20 

20 

20

2O 

20 

20 

18 

18

18 

18 

19 

19 

20

19 

15 

16 

16 

15 

14

Aug.

13 

13 

14 

14 

14

13 

13 

13 

13 

12

12 

13 

13 

13 

14

14 

14 

16 

16 

18

18 

18 

19 

19 

18

18 

18 

17 

18 

20 

19

Sept.

19 

17 

16 

17 

15

18 

18 

18 

19 

19

18 

18 

18 

17 

17

17 

13 

14 

16 

17

22 

21 

20 

20 

20

20 

22 

22 

23 

22

 _ Runoff in Mean acre-feet

40.4 2,480 

144 8,550 

167 10,280

184 132,900

74.1 4,560 

301 16,740 

383 23,560 

275 16,340 

88.4 5,430 

64.3 3,830 

20.4 1,250 

15.4 946 

18.4 1,100

131 95.07O

23 (6 a.m.) 1,870 sec. -ft.; Dec. 5

a No gage-height record; diaoharge computed on basia of recorded range in stage and reeorda for 

Indian Creek near Crescent Mills and Middle Fork Feather River below Sloat.
338 FEATHER RIVER BASIN

Bucks Creek Reservoir near Bucks Ranch, Calif.

Location^- Water-stage recorder, lat. 39°54', long. 121°12', in NW£ sec. 33, T. 24 N., 

R. 7 E., at dam on Bucks Creek, 2 miles northwest of former Bucks Ranch and 15 miles 

west of Quincy. Datum of gage is 5,000 feet above mean sea level; gage readings have 

been reduced to elevations above mean sea level (levels by Feather River Power Co.).

Drainage area.- 28 square miles.

Records available.- October 1928 to September 1947.

Extremes.- Maximum contents during year, 102,200 acre-feet June 14 (elevation, 5,155.2 

feet)7 minimum, 61,200 acre-feet Nov. 16 (elevation, 5,130.8 feet).

1928-47: Maximum contents, 105,800 acre-feet June 23, 1938 (elevation, 5,167.1 

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 1927. Capacity, 101,400 acre-feet between elevations 5,064.75 feet (sill 

of outlet gate) and 5,154.85 feet (spillway crest) above mean sea level. Released 

water flows down BUCKS Creek to diversion dam, where it enters tunnel that discharges 

into Grizzly Creek, 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.

In thousands of acre-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.

74.6

74.3

74.4

74.3

74.3

74.1

73.6

73.2

72.8

72.3

71.9

71.5

71.0

70.7

70.4

70.0

69.7

69.4

69.1

68.8

68.6

68.4

68.3

68.0

67.9

67.6

67.3

66.8

66.4

65.9

65.4

Ncv.

65.0

64.6

64.1

63.7

63.2

62.9

62.5

62.1

61.7

61.5

61.4

61.4

61.4

61.3

61.3

61.2

61.9

63.1

64.2

65.4

66.6

67.8

69.0

69.6

69.7

69.8

69.9

70.0

70.0

70.1

-

Dec.

70.3

70.4

70.4

70.4

70.6

70.8

71.0

71.0

71.0

71.0

71.1

71.2

71.2

71.2

71.2

71.2

71.2

71.3

71.3

71.3

71.3

71.4

71.5

71.5

71.5

71.6

71.6

71.6

a71.6

a71.6

a71.7

Jan.

71.7

71.7

71.8

71.8

71.8

71.8

71.8

71.8

71.8

71.9

71.9

71.9

72.0

72.0

72.0

72.0

72.0

72.1

72.1

72.1

72.1

72.1

72.1

72.1

72.2

a72.2

a72.3

a72.3

a72.5

a72.6

a72.7

Feb.

72.9

72.9

72.9

72.9

72.9

73.0

73.0

72.8

72.6

72.6

72.6

74.7

75.6

75.8

76.1

76.3

76.5

76.6

76.8

76.9

77.1

77.2

77.2

77.4

77.5

77.6

77.9

78.0

_

_

-

Mar.

78.4

78.9

79.2

79.5

79.6

79.6

79.8

80.0

80.1

80.5

80.7

81.0

81.1

81.2

81.3

82.4

82.6

82.9

83.1

83.8

84.1

84.4

84.4

84.7

85.0

85.1

85.5

85.9

86.8

87.2

88.1

Apr.

88.6

88.9

89.3

89.4

89.7

89.9

90.1

90.3

90.8

90.9

91.2

91.5

91.6

91.9

92.2

92.6

93.1

93.5

93.8

94.2

94.5

94.7

95.1

95.3

95.6

96.0

96.3

96.6

97.0

97.2

-

May

97.7

98.0

98.4

98.8

99.1

99.4

99.7

99.9

100.1

100.3

100.6

100.7

100.9

101.0

101.3

101.5

101.6

101.7

101.7

101.8

101.9

101.7

101.7

101.3

100.7

100.5

100.1

99.7

99.6

99.2

99.3

June

99.5

99.6

99.8

100.0

100.2

100.4

100.9

101.6

101.7

102.0

102.1

102.1

102.1

102.2

102.1

102.1

102.1

102.1

102.1

102.1

102.1

102.1

101.9

101.4

100.8

100.4

99.8

99.4

98.9

98.7

-

July

98.4

98.1

97.8

97.6

97.4

97.2

97.2

97.2

97.2

97.2

97.3

97.3

97.2

96.9

96.5

96.2

96.0

95.6

95.3

95.0

94.4

93.8

93.3

92.7

92.2

91.6

91.2

91.1

90.7

90.2

89.7

Aug.

89.0

88.5

88.2

87.6

87.1

86.6

86.0

85.5

85.0

84.4

83.9

83.3

82.8

82.2

81.7

81.1

80.8

80.5

80.1

79.7

79.4

79.0

78.7

78.5

78.5

78.5

78.5

78.5

78.5

78.5

78.4

Sept.

78.2

78.0

77.9

77.7

77.5

77.3

77.0

76.5

76.0

75.5

75.1

74.6

74.1

73.8

73.4

73.2

72.9

72.6

72.4

72.1

71.9

71.8

71.8

71.6

71.6

71.6

71.5

71.4

71.2

70.7

a Ho gage-height record! contents obtained from powerhouse records.

Monthly elevation and contents, water year October 1946 to September' 1947

Date

Dec. 31..................

Calendar year 1946 .....

Sept. 30..................

Water year 1946-47 .....

Elevation 

(feet)

5,136.4

5,137.4

-

5,136.8

-

Contents 

(acre-feet)

71,700 ,

-

70,700

-

Change in contents 

during month 

(acre-feet)

-9,300

+4,700

+1,600

-14,500

+1,000

+10,100

+2,100

-600

-7,700

-4,000
FEATHER RIVER BASIN 339

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 £., 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 1947.

Average discharge.- 17 years, 330 second-feet.

Extremes.- Maximum discharge during year, 7,870 second-feet Feb. 12 (gage height, 16.86 

reet); minimum, 3.5 second-feet Aug. 7.

1930-47: Maximum discharge, 21,400 second-feet Dec. 11, 1937 (gage height, 30.3 

feet), from rating curve extended above 15,000 second-feet; minimum, 0.3 second-foot 

Jan. 8, 1937 (gage height, 1.69 feet).

Remarks.- Records good. Spring Valley ditch (see p. 341J diverts water from Concow Creek 

below Lake Wilenor (capacity, 8,000 acre-feet) for power development and irrigation. 

Dewey, Miners, and Hendricks Canals divert from headwaters of West Branch Feather 

River into Butte Creek Basin (see p.328) for power development in De Sabla and Ceriterville 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 table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

2.3 3.4 3.3 61 7.0 930 

2.4 5.4 3.6 89 8.0 1,360 

2.5 9.O 4.0 135 9.O 1,830 

2.6 14 4.5 216 10. O 2,390 

2.7 19 5.0 321 11. O 3.00O 

2.8 25 5.5 439 13.0 4,540 

3.O 38 6.0 576 13.6 5,020

Discharge, in second-feet, water year October 194,6 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.

6.3 

15 

10 

8.1

6.6

5.4 

5.1 

6.0 

6.0 

5.7

5.7 

5.7 

5.4 

5.7 

5.7

6.0 

6.3 

6.6 

6.3 

6.3

5.7 

7.7 

13 

12 

10

6.3 

5.7 

6.0 

6.3 

6.9 

6.9

Nov.

6.6 

8.1 

6.9 

6.3 

6.6

6.9 

10 

31 

24 

8.1

7.3 

6.9 

6.9 

7.3 

7.3

7.3 

7.7 

30 

1,250 

269

82 

704 

2,090 

354 

172

125 

97 

78 

65 

59

Dec.

50 

42 

48 

44,6 

1,100

682 

424 

335 

264 

220

154 

114 

99 

89 

80

73 

65 

54 

49 

49

49 

45 

44 

44 

61

73 

106 

82 

61 

74 

91

Jan.

91 

85 

81 

80 

79

81 

83 

95 

94 

80

73 

73 

73 

74 

66

74 

71 

70 

70 

68

66 

66 

66 

66 

66

68 

72 

80 

74 

77 

77

Feb.

74 

74 

76 

78 

80

80 

81 

82 

102 

367

330 

5,010 

1,760 

874 

600

501 

414 

351 

286 

233

199 

201 

216 

185

152

145 

152 

143

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

liber. ..................................

lendar year 1946 ......................

ary

enber ..................................

ter year 1946-47 ......................

Mar.

154 

487 

953 

579 

395

301

256 

266 

457 

2,020

1,090 

698 

570 

532 

561

534 

509 

495 

487 

446

412 

374 

477 

360 

312

290 

286 

569 

1,060 

1,460 

1,110

Apr.

870 

789 

962 

736 

609

740 

628 

588 

576 

537

534 

540 

532 

532 

472

439 

414 

351 

326 

303

295 

262 

237 

218 

212

208 

201 

197 

192 

183

Seccndf cot-days

220.4 

5,540.2 

5,167

76,366.0

2,339 

12,846 

18,500 

13,683 

2,744 

2 , 327 . 5 

131.5 

131.0 

137.8

63,767.4

Peak discharge.- Nov. 19 (11:30 a.m.) 2,930 sec.-ft.j

May

178 

188 

192 

220 

175

152 

158 

145 

130 

110

96 

89 

85 

SO 

74

68 

64 

58 

53 

47

43 

37 

33 

29 

27

24 

27 

39 

34 

29 

60

Maximum

15 

2,090 

1,100

2,090

95 

5,010 

2,02O 

962 

220 

574 

5.1 

5.4 

5.4

5,010

June

158 

111 

75 

53 

56

97 

172 

574 . 

297 

144

99 

76 

60 

52 

40

34 

45 

39 

28 

23

17 

14 

11 

9.5 

8.5

8.5 

7.7 

6.6 

6.3 

5.4

Minimum

5.1 

6.3

42

4.8

66 

74 

154 

183 

24 

5.4 

3.8 

3.5 

4.0

3.5

July '

5.1 

4.8 

.8 

.6 

.6

.4 

.4 

.4 

.4 

.4

.4 

.4 

.6 

.4 

.2

.2 

.2 

.0 

.0 

.8

.8 

.0 

.0 

.2 

.2

.2 

.8 

.8 

.8 

3.8 

3.8

Aug.

3.8 

4.O 

4.0 

4.0 

3.8

3.7 

3.7 

3.7 

3.7 

3.8

3.8 

3.8 

4.0 

4.2 

4.2

4.2 

4.0 

3.8 

3.8 

4.0

4.6 

5.4 

5.4 

5.1 

4.6

4.4 

4.4 

4.6 

4.8 

4.8 

5.1

Sept.

4.8 

4.2 

4.0 

4.0 

4.2

4.4 

5.1 

5.1 

5.4 

5.1

4.6 

4.2 

4.0 

4.2 

4.2.

4.4 

4.6 

4.8 

5.4 

5.1

4.6 

4.2 

4.2 

4.4 

4.4

4.8 

5.4 

5.1 

4.8 

4.6

.. Runoff in 

Mean acre-feet

7.11 437 

185 10,990 

167 10,250

209 151,500

75.4 4,640 

459 25,480 

597 36,690 

456 27,140 

88.5 5,440 

77.6 4,620 

4.24 261 

4.23 260 

4.59 273

175 126,500

Nov. 23 (1 a.m.) 4,820 sec. -ft.; Dec. 5

(4 p.m.) 1,710 sec.-ft.; Feb. 12 (Z p.m.) 7,870 sec.-ft.; Mar. 10 (9 a.m.) 2,720 sec.-ft.; Mar. 

(10 p.m.) 2,510 sec.-ft.
340 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 Hill post office. Altitude of gage, about 

1,850 feet (from topographic map).

Drainage area.- 14.7 square miles.

Records available.- October 1927 to September 1947.

Average dlschargeT- 20 years, 27.1 second-feet, combined flow of Concow Creek and Spring 

Valley ditchT

Extremes.- Maximum discharge during year not determined, probably occurred on Nov. 23; 

no flow most of year.

1927-47: Maximum discharge, 2,060 second-feet Jan. 21, 1943 (gage height, 5.35 

feet, from floodraark in well), from rating curve extended above 80 second-feet by 

computations of flow over dam; no flow for many montns in each year.

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

On Sept. 30, 1946, storage in Lake Wilenor (capacity, 8,200 acre-feet, revised), was 

2,540 acre-feet, and on Sept. 30, 1947, it was 3,340 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 project.

Rating table, water year 1946-47 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Apr. 21-23)

0.0 

.1 

.2

0

.8 

4.4

0.3 

.4 

.5

12

24

40

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

10

11

13

15

16

18

19

21

22

24

25

26

27

28

29

30

31

Oct. Nov.

0

0

0

 0

0

0

o

> a50

alO

alO

a5

a2

-

Dec. Jan. Feb.

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

Bay. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

0

0

a. 6

h.5

.4

.7

.8

.8

Apr.

0.8

1.0

3.4

4.9

4.9

4.9

6.8

17

35

37

32

28

27

17

1,5

12

a 10

8.4

6.8

10

13

13

7.6

7.6

10

10

10

11

12

11

Seoondfoot-days

0

417

0

2,993.5

0

0

17.6

387.1

88.9

38

0

0

0

948.6

Hay

10

9.2

9.2

9.2

9.2

9.2

9.2

8.4

8.4

3.9

2.1

.9

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

Maximum

0

0

-

0

0

37

10

23

0

0

0

-

June

0

0

0

0

0

0

a7

a23

a8

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 o

0

0

0

0

0

Minimum

0

0

0

0

0

0

0

.

0

0

0

0

0

0

July Aug.

Mean

0

13.9

0

8.20

0

0

.57

3 12.9

2.87

1.3

0

0

0

2.60

Sept.

Runoff in 

acre-feet

0

827

0

5,940

0

0

35

768

176

75

0

0

0

1,880

a Ho gage-height records discharge computed on basis of-observer's records, 1 estimate of flow, and 

records for West Branch Feather River near Yankee Hill, 

h Computed from staff-gage reading.
FEATHER RIVER BASIN 341

Spring Valley ditch near Yankee Hill, Calif.

Location.- Water-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 1947. 

Average discharge.- 20 years, 10.5 second-feet.

Extremes.- Maximum daily discharge during year, 38 second-feet Oct. 1; no flow Nov. 10 

 to Dec. 28.

1927-47: Maximum daily discharge, 49 second-feet Oct. 25-27, 1928; no flow at 

times during most years.

Remarks.- Records excellent except those for periods of no gage-height record, which ape 

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 1946 to September 1947

Day

I

Z

S

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

38

28

23

27

27

30

35

36

36

36

36

36

36

36

35

35

35

35

33

32

32

30

26

24

24

29

33

35

36

36

36

Nov.

35

35

34

31

33

32

11

.5

.2

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

-

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

h6.2

h9.1

h9.0

Jan.

9.7

hll

ha. 3

hlO

12

12

11

11

11

11

10

9.6

9.6

9.6

9.6

9.6

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

Feb.

9.5

9.5

9.5

9.5

9.5

9.5

9.3

9.3

9.5

6.0

3.9

1.8

.2

-

_

-

Month

October. ...................................

November. ...................................

December. ...................................

Calendar year 1946 ......................

January. ....................................

February. ..................................

March.......... .......................... r .

April ......................................

May. .......................................

June .......................................

July..................... ..................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

, 0.2

Apr.

' 0.2

-

Secondfoot-days

1.O06

211.7

24.3

5,227.1

307 5

100.0

6*2

6.0

41.2

116 3

477.3

QE1 O3J.

365

4,012.5

May

 0.2

1'

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Maximum

38

35

9.1

42

12

9

C

. 3

2

9

27

31

32

38

June

2

2

2

2

6

8

9

9

8

7

h6.9

5.8

4.0

3.3

3.2

3.2

3.2

3.1

3.2

3.2

3.2

3.3

2.4

1.9

1.9

1.9

1.9

1.9

1.9

1.9

Minimum

0*cO

0

0

0

8 " 3

1.9

1.9

r>« £3

25

0

July

1.9

1.9

6.4

7.4

6.8

6.7

7.6

8.1

7.6

7.2

9.7

14

14

14

14

14

16

20

22

25

27

27

27

23

21

21

21

21

21

21

23

Aug.

25

25

24

23

24

24

24

25

26

27

28

28

28

28

28

28

28

29

31

31

31

31

29

27

27

27

27

29

30

30

29

Mean

32.5

7.06

.78

14.3

9 92 sis?

.2

.2

1.3

isU27 5

28 !e

11.0

Sept.

29

29

30

31

32

32

32

32

31

29

28

30

32

32

31

29

27

27

26

25

25

26

27

29

29

29

28

26

26

26

Runoff in 

ao re-feet

2,000

420

48

10,370

610

198

12

12

82

231

947

1 j690

1,720

7,970

h Computed from staff-gage readings.

Note.- No recorder record Nov. 10 to Jan. 4', Feb. 13 to June 11; discharge computed on basis of 

observer's notes and 2 estimates of flow.

854211 O - 49 - 23
342 FEATHER RIVER BASIN

Middle Fork Feather River near Clio, Calif.

Location.- Water-stage recorder, lat. 39°45' , long. 120° 36', in E| sec. 23, T. 22 N., R. 

 12 E., 0.3 mile upstream from Frazier Creek and 1.5 miles northwest of Clio. Altitude 

of gage, about 4,350 feet (from topographic map).

Drainage area.- 699 square miles.

Records available.- October 1925 to September 1947.

Average discharge.- 22 years, 253 second-feet.

Extremes.- Maximum discharge during year, 2,680 second-feet Feb. 12 (gage height, 8.26 

reet); minimum, 8.0 second-feet July 30.

1925-47: Maximum discharge, 11 000 second-feet Mar. 26, 1928 (gage height, 12.0 

feet), from rating curve extended above 7,000 second-feet; minimum, 4.3 second-feet 

Sept. 5, 1934.

Remarks.- Records good. Many small diversions above station for irrigation.

Rating tables, water year 1946-47

Oct. 1 to Nov. 23

ge height, in feet, and discharge, in second-feet) 

Nov. 24 to Sept. 30

2.2

2.3

2.4

2.5 

2.7

2.9 

3.1 

3.3 

3.5 

3.8

97

129

167

209

283

2.2

2.4

2.5

2.6

2.7 

2.9

36

46

58

3.1 

3.4 

3.7 

4.1 

4.5

139

197

260

365

491

5.0 

5.6 

6.3 

7.0 

7.3

670

920

1,260

1,670

1,880

Note.- Same as following 

table above 4.0 feet.

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.

24

24

24

24

23

23

23

23

23

23

23

23

23

22

22

23

24

23

23

23

30

31

30

30

29

26

24

26

35

40

40

Nov.

41

40

39

39

39

39

40

41

40

40

41

43

46

52

51

48

48

86

434

283

127

220

822

484

474

r>22

351

247

191

152

-

Dec.

132

118

109

251

331

332

277

313

294

249

203

175

152

130

123

121

109

86

76

84

69

84

92

107

121

125

157

128

119

97

86

Jan.

101

72

66

66

62

6£

59

61

65

69

71

72

71

72

58

61

57

51

52

54

56

59

66

74

78

92

107

102

101

90

71

Feb.

71

74

75

75

89

106

137

169

183

191

213

1,810

1,170

1,860

1,340

843

585

464

401

354

307

270

240

213

177

181

179

169

_

_

-

Month

October ............................ . . .

November ...................................

December . ..................................

Calendar year 1946 ......................

January ....................................

February ............................

March. .....................................

April. ............................. . . . May. .......................................

June. ......................................

July.. .....................................

August .....................................

September. .................................

Water year 1946-47 ............... ....

Peak discharge.- Nov. 23 (1:30 a.m.) 1.01O

Mar.

176

282

282

305

398

398

383

374

378

902

754

834

766

582

511

454

413

368

329

302

274

294

481

365

332

326

302

318

377

467

484

Apr.

398

401

404

359

313

302

274

256

256

232

155

148

143

141

155

153

152

139

130

121

123

1E8

125

123

118

101

87

82

84

80

Seoondfoot-days

804

5,120

4,850

90,076

2

11 *94R

131211

5,683

1 , 617

320 9

303 2

ooo . o

47,180.9

May

86

92

94

92

90

86

82

78

72

64

57

54

50

48

45

42

41

40

39

39

36

34

31

28

26

26

29

29

28

27

32

Maximum

40

332

1,380

107

1,860

404

94

59

14

11

14

1,860

June

44

34

31

27

32

35

46

59

44

38

34

30

26

24

22

22

23

21

19

17

17

16

16

15

15

17

17

17

16

15

Minimum

22

39

69

10

51

71

176

26

15

9 2

8*9

9.8

8.9

July

14

13

11

12

11

11

11

10

10

10

9.8

10

10

11

11

11

10

9.5

9.2

9.3

11

9.3

9.3

9.5

9.3

9.8

9.3

9.5

9.2

9.2

9.2

Aug.

9.5

9.8

9.8

9.8

10

10

8.9

8.9

8.9

9.2

9.5

9.5

9.5

9.5

10

9.8

9.8

9.2

9.5

10

10

10

11

10

10

10

9.8

9.5

9.8

11

11

Wean

25 . 9

171 "

156

2147

70,9

4:27

4:26

J-OJ7 1 flQ

52 * 2

26 . 3

10.4

ills

129

Sept.

11

10

10

11

10

10

9.8

10

11

11

10

10

10

1011

1111

12

14

14

13

13

12

12

12

12

12

12

12

12

Runoff in 

acre feet

1,590

10,160

9,620

178,700

4,360

23,690

26,200

11,270

3,210

1,560

636

601

672

93,570

sec. -ft.; Feb. 12 (3 p.m.) 2,680 sec. -ft.; Feb. 14

(11 a.m.) 1,960 sec.-ft.; Mar. lo (11 a.m.) 1,040 sec'-ft.
FEATHER RIVER BASIN 

Middle Pork Feather River below Sloat, Calif.

343

Location.- Water-stage recorder, lat. 390 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.

Records available.- December 1940 to September 1947. Records published for period Novemoer j.yiu to Feoruary 1928 for Middle Fork Feather River at Sloat (at site 2.0 miles 

upstream) are not comparable.

Extremes.- Maximum discharge during year, 4,550 second-feet Feb. 12 (gage height, 7.25 

feet); minimum, 35 second-feet Sept. 7.

1940-47: Maximum discharge, 12,400 second-feet Jan. 21, 1943 (gage height, 12.65 

feet); minimum, that of 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. Flow slightly regulated by mill pond at Sloat. 

versions above station for irrigation. Many small diRatlng tattles, water year 1946-47, except periods of ice effect (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Pet. 12 Feb. 12 to Sept. 30

O.5 53 1.6 24O 4.0 1.42O 0.2 30 1.3 185 3.5 

 6 62 2.0 355 5.0 2,190 .4 47 1.6 261 4.0 

.8 84 2.5 550 5.7 2,800 .6 69 2.O 400 5.O 

1.0 114 3.O 790 .8 96 2.5 615 5.6 

1.3 17O 3.5 1,080 l.O 127 3.0 870

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

ii

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

60 

66 

66 

65 

63

62 

63 

64 

63 

62

62 

62 

62 

62 

61

64 

65 

64 

65 

65

66 

73 

7S 

72 

71

69 

69 

66 

71 

78 

78

Nov.

79 

78 

78 

77 

79

80 

S2 

82 

78 

82

82 

83 

88 

91 

91

91 

91 

124 

1,010 

559

268 

414 

1,650 

775 

590

626 

477 

362 

289 

245

Dec.

213 

197 

188 

429 

634

636 

469 

457 

422 

369

319 

277 

250 

220 

21O

201 

192 

166 

156 

158

146 

152 

160 

172 

194

201 

248 

210 

201 

174 

158.

Jan.

177 

152 

134 

137 

139

134 

134 

130 

128 

130

132 

134 

132 

132 

119

b!30 

bl20 

bllS 

b!20 

b!2O

125 

128 

128 

128 

132

141 

160 

160 

154 

150 

134

Feb.

128 

132 

136 

136 

143

162 

188 

225 

242 

268

267 

2,750 

2,090 

2,030 

1,680

1,880 

886 

725 

635 

566

494 

444 

412 

372 

328

328 

324 

304

Month

Octc 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

Bber.... ...............................

Bber............ ........................

lendar year 1946 

ary

1. .....................................

ember ..................................

ter year 1946-47 ......................

Mar.

304 

566 

552 

548 

620

6O6 

584 

570 

574 

1,450

1,230 

1,140 

1,060 

876 

795

740 

705 

665 

625 

588

556 

570 

947 

735 

640

615 

584 

650 

730 

930 

864

Apr.

785 

750 

755 

690 

620

6O6 

574 

548 

538 

498

432 

400 

436 

452 

512

548 

584 

552 

520 

534

516 

460 

424 

412 

404

392 

392 

384 

388 

412

Seoondfcot-days

2,057 

8,801 

8,179

160,693

4,189 

18,275 

22,619 

15,518 

8,985 

5,220 

1,644 

1,292 

1,157

97,936

Peak discharge.- Nov. 23 (4 a.m.) 2.420 see. -ft.: Feb.

May

452 

543 

584 

556 

516

484 

456 

412 

364 

321

301 

285 

264 

244 

233

233 

230 

228 

220 

216

203 

199 

190 

174 

165

155 

155 

154 

144 

141 

163

Maximum

78 

1,650 

636

1,840

177 

2,750 

1,450 

785 

584 

530 

70 

45 

42

2,75O

June

291 

258 

213 

178 

185

226 

294 

530 

424 

288

230 

194 

170 

152 

139

130 

130 

122 

111 

105

99 

95 

93 

88 

82

82 

81 

79 

77 

74

Minimum

6O 

77 

146

52

115 

128 

304 

384 

141 

74 

45 

39 

36

36

July

7O 

68 

65 

64 

63

61 

59 

57 

56 

55

54

54 

53 

53 

52

52 

51 

49 

47 

47

47 

49 

48 

47 

47

47 

47 

46 

46 

45 

45

1,160 

1,490 

2,250 

2,780

Aug.

44 

45 

45 

45 

44

43 

42 

42 

42 

42

43 

42 

42 

42 

42

42 

42 

41 

39 

40

41 

41 

42 

41 

40

40 

39 

39 

39 

41 

40

Mean

66.4 

293 

264

44O

135 

653 

730 

517 

290 

174 

53.0 

41.7 

38.6

268

12 (5 p.m.) 4,550 see.-ft.j Mar.

Sept.

38 

38 

38 

38 

37

36 

36 

36 

38 

37

36 

36 

36 

36 

36

36 

39 

42 

42 

42

41 

42 

40 

40 

38

40 

40 

41 

41 

41

Runoff in 

acre-feet

4,080 

17,460 

16,220

318,700

8,310 

36,250 

44,860 

30,780 

17,820 

10,350 

3,260 

2,560 

2,29O

194,200

10 (2 p.m.)

1,710 see.-ft.

b Stage-discharge relation affected by ice.
344 FEATHER RIVER BASIN

Middle Fork Feather River at Bidwell Bar, Calif.

Location.- Water-stage recorder, lat. 39°33', long. 121°26', in NW£ sec. 32, T. 20 N , 

R. BE., 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). v

Drainage area.- 1,353 square miles.

Records available.- October 1911 to September 1947.

Average discharge.- 36 years, 1,788 second-feet.

Extremes.- Maximum discharge during year, 17,800 second-feet Feb. 12 (gage neight, 13.00 

feet); minimum, 134 second-feet Sept. 15, 16.

1911-47: Maximum discharge, 93,000 second-feet Dec. 11, 1937 (gage height, 24.0 

feet, from floodmarks), from rating curve extended above 25,000 second-feet on basis 

of velocity-area and AVd studies; 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 tables, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Nov. 23 Nov. 24 to Sept. 30

2.1

2.2 

2.4 

2.6 

2.8 

3.0

152

176

230

290

354

420

3.4 

3.8 

4.2 

4.5 

5.0 

5.5

570

755

960

1,150

1,540

1,980

6.0 

6.5 

7.0 

7.5 

8.0 

8.5

2,460

3,040

3,680

4,380

5,100

5,850

9.0 6,650

10.0 8,500

11.0 10,900

12.0 14,000

1.9 

2.1 

2.3 

2.6 

2.9 

3.2

130

166

208

282

366

465

3.5 

3.8 

4.2 

4.6 

5.0 

5.7

583

720

935

1,200

1,510

2,160

Note.- Same as preceding 

table above 5.7 feet.

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.

171 

227 

251 

251 

222

208 

202 

210 

213 

213

205 

199 

194 

194 

192

202 

213 

213 

210 

210

208 

208 

281 

287 

251

230 

227 

222 

219 

224 

233

Nov.

236 

236 

230 

227 

227

227 

230 

230 

230 

227

227 

227 

230 

245 

254

254 

248 

357 

3,470 

2,570

1,030 

1,030 

6,180 

2,440 

1,450

1,260 

1,120 

923 

785 

696

Dec.

631 

579 

583 

1,960 

3,390

3,310 

2,050 

1,610 

1,380 

1,200

1,070 

965 

881 

820 

760

720 

686 

640 

596 

592

579 

563 

559 

563 

604

677 

820 

815 

710 

663 

596

Jan.

587 

583 

515 

492 

507

519 

503 

484 

476 

473

480 

476 

476 

484 

448

418 

428 

418 

421

441

431 

421 

421 

431 

441

435 

492 

559 

515 

519 

511

Feb.

476 

462 

473 

476 

480

495 

527 

571 

648 

1,200

1,020 

12,000 

9,520 

5,570 

4,750

3,620 

2,790 

2,320 

2,010 

1,820

1,640 

1,490 

1,380 

1,300 

1,220

1,160 

1,220 

1,170

Month

Octc 

Neve 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

Ha

mber...... .............................

lendar year 1946 ......................

ary

h. .....................................

St. ....................................

ember. .................................

ter year 1946-47 ......................

Peak discharge.- Nc

(6 p.m.) 4,740 sec.-f 

(10 a.m.) 6,090 sec.-

Mar.

1,170 

2,240 

2,670 

2,420 

2,130

1,960 

1,840 

1,870 

2,130 

6,780

5,610 

4,510 

3,750 

3,300 

3,050

2,930 

2,920 

2,900 

2,880

2,730

2,550 

2,450 

. 3,460 

2,990 

2,570

2,390 

2,270

2,810 

3,840 

5,800 

5,180

Apr.

4,390 

3,970 

4,030 

3,540 

3,160

3,170 

2,960 

2,800 

2,750 

2,580

2,470 

2,350 

2,400 

2,460 

2,530

2,580 

2,610 

2,460 

2,290 

2,190

2,130 

1,930 

1,790 

1,700 

1,640

1,640 

1,600 

1,560 

1,520 

1,530

Second 

foot-days

6,790 

27,296 

31,572

566,610

14,838 

61,808 

96,100 

74,730 

29,955 

20,993 

7,442 

5,035 

4,331

380,890

May

1,530 

1,640 

1,720 

1,660 

1,530

1,450 

1,390 

1,330 

1,200 

1,110

1,030 

983 

947 

899 

853

826 

805 

785 

760 

730

706 

677 

654 

622 

600

571 

583 

604 

583 

555 

622

Maximum

287 

6,180 

3,390

6,800

587 

12,000 

6,780 

4,390 

1,720 

2,080 

318 

185 

159

12,000

June

941 

905 

820 

696 

654

780 

1,030

2,080 

1,650

1,200

959 

815 

730 

663 

609

567 

579 

551 

499 

469

438 

421 

408 

398 

379

336 

358 

352 

344 

332

Minimum

173 

22 

55C

16(

41S 

462 

1.17C 

1,52C 

555 

33! 

18< 

155 

134

134

July

318 

310 

302 

293 

290

285 

279 

269 

264 

256

254 

251 

251 

244 

239

237 

230 

227 

220 

210

206 

202 

202 

208 

213

202 

200 

200 

198 

193 

189

Aug.

185 

183 

183 

181 

179

174 

170 

166 

162 

161

161 

162 

162 

161 

161

159 

157 

155 

153 

152

153 

159 

161 

159 

155

153 

152 

152 

152 

155 

157

Mean

L 219 

' 910 

1,018

1,552

i 479 

'. 2,207 

> 3,100 

) 2,491 

5 966 

700 

) 240 

' 162 

I 144

I 1,044

v. 19 (3:30 p.m.) 6.140 sec. -ft. ; Nov. 23 (5:30 a.m.) 8,400 sec. -ft. 

t.s Feb. 12 (8 p.m.) 17,800 sec. -ft.; Mar. 10 (l p.m.) 8,000 sec. -ft 

ft.

Sept.

155 

150 

144 

143 

143

141 

141 

141 

143 

144

143 

139 

137 

137 

135

134 

137 

157 

159 

159

153 

148 

146 

146 

144

141 

141 

143 

144 

143

Runoff in 

acre-feet

13,470 

54,140

62,620

1,124,000

29,430 

122,600 

190,600 

148,200 

59,410 

41,640 

14,760 

9,990 

8,590

755,400

Dec. 5 

; Mar. 30
FEATHER RIVER BASIN 345

South Fork Feather River at Enterprise, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 121°21', in SW^ see. 5, T. 19 N., R. 

6 K. , 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 1947. October 1911 to September 1930 at 

site hair a mile downstream.

Average discharge.- 36 years, 300 second-feet.

Extremes.- Maximum discharge during year, 4,210 second-feet Feb. 12 (gage height, 11.10 

reet) ; minimum, 3.4 second-feet Aug. 7-9.

1911-47: 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. 

following page for records for Palermo Canal . )

(See

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, In second-feet)

1.3 3.3 1.8 10 3.1 97 6.0 790 

1.4 4.0 1.9 14 3.5 145 7.0 1,190 

1.5 5.1 2.1 22 4.0 234 8.0 1,720 

1.6 6.7 2.4 38 4.5 340 9.0 2,380 

1.7 8.5 2.7 60 5.0 470 9.1 2,450

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

Oot.

7.4 

9.9 

18 

14 

10

9.3 

13 

19 

20 

20

19 

15 

13 

12 

10

14 

15 

15 

14 

14

14 

18- 

22 

19

16

15 

14 

14 

14 

15 

13

Nov.

12 

12 

13 

12 

11

11 

11 

11 

11 

11

9.1 

8.0 

8.1 

9.1 

9.3

8.7 

8.7 

19 

520 

242

87 

125 

862 

234 

134

106 

90 

80 

71 

65

Dec.

62 

58 

63 

287 

532

521 

296 

210 

165 

141

127 

117 

107 

99 

93

86 

81 

75 

72 

72

68 

67 

66 

66 

71

77 

100 

95 

82 

75 

69

Jan.

71 

65 

59 

63 

63

62 

60 

58 

57 

57

55 

54 

51 

54 

46

43 

47 

44 

44 

44

43 

42 

42 

41 

41

44 

48 

S7 

48 

51 

52

Feb.

48 

45 

46 

48 

49

50 

52 

54 

66 

173

128 

2,440 

2,010 

995 

695

572 

467 

391 

338 

303

264 

236 

£14 

198 

187

180 

194 

185

Month

Ooto 

Neve 

Dece

Ca

Janu 

Febr 

Ua.ro 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

her. ...................................

mber. ...................................

lendar year 1946 

ary

h. .....................................

1. .....................................

st... ..................................

ember. .................................

ter year 1946-47 ......................

Peak discharge.- N

953 sec. -ft. j Feb. 1

Mar.

194 

476 

578 

506 

404

333 

296 

296 

373 

1,720

1,100 

783 

661 

596

560

536 

542 

539 

542 

512

473 

459 

668 

530 

470

431 

398 

569 

797 

1,340 

1,160

Apr.

915 

824 

820 

715 

634

617 

563 

530 

515 

473

456 

439 

439 

448 

448

448 

445 

411 

354 

309

285 

252 

230 

218 

210

234 

222 

205 

194 

191

May

176 

180 

176 

160 

145

137 

126 

118 

109 

99

91 

85 

81 

77 

72

69 

64 

61 

56 

52

48 

46 

43 

39 

37

34 

36 

40 

38 

35 

41

June

88 

80 

77 

59 

54

69 

110 

252 

189 

134

105 

88 

74 

65 

58

52 

50 

47 

39 

34

30 

27 

24 

23 

21

19 

17 

16 

15 

12

ffo^Says "axifflun MlniBMB

455.6 22 7.4 

2,811.0 862 8.0 

4,100 532 58

83,110.9 1,260 4.0

1,606 71 41 

10,628 2,440 45 

18,842 1,720 194 

13,044 915 191 

2,571 180 34 

1,928 252 12 

177.7 21 3.8 

113.8 3.9 3.4 

170.5 10 3.8

56,447.6 2,440 3.4

July

8.3 

8.1 

8.1 

8.0 

7.6

6.2 

5.6 

5.4 

5.3 

5.1

4.8 

4.7 

4.8 

4.7 

4.7

4.9 

4.8 

4.7 

4.6 

4.4

4.4 

4.6 

4.7 

21 

4.8

3.9 

4.0 

3.9 

3.9 

3.9 

3.8

Aug.

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3 

3

Mean

14.7 

93.7 

132

228

51.8 

380 

608 

435 

82.9 

64.3 

5.73 

3.67 

5.68

155

3V. 19 (3 p.m.) 972 seo.-ft;j Nov. 23 (6:30 a.m. 1,560 sec. -ft.; Dec 

2 (7:30 p.m.) 4,210 sec. -ft.; Mar. 10 (ll a.m.) 2,240 sec. -ft.

.8 

.8 

.9 

.9 

.9

.7 

.6 

.4 

.5 

.5

.5 

.5 

.5

.6 

.6

.6 

.6 

.6

.6

.6

.6 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.8 

.9 

.9

Sept.

3.9 

3.9 

3.8 

3.8 

3.8

3.8 

3.9 

3.9 

4.0 

4.0

4.1 

4.2

4.3 

4.3 

4.6

5.3 

6.4 

9.5 

10 

8.9

8.1 

7.6 

7.4 

6.9 

6.9

7.1 

7.1 

7.4 

6.2 

5.4

Runoff in 

acre-feet

904 

5,580 

8,130

164,800

3,190 

21,080 

37,370 

25,870 

5,100 

3,820 

352 

226 

338

112,000

. 5 (7 p.m.)
346 FEATHER RIVER BASIN 

Palermo Canal at Enterprise, Calif.

Location.- Water-stage recorder and Parshall flume, lat. 39°32', long. 121°21', in SW£ 

sec. e>, T. 19 N., R. 6 E., 400 feet downstream from intake at diversion dam on South 

Pork 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 1947. 

Average discharge.- 36 years, 18.9 second-feet.

Extremes.- Maximum daily discharge during year, 30 second-feet Oct. 2, July 1-7, 10-13, 

Sept. 17; minimum daily, 8.4 second-feet Apr. 3-5.

1911-47: Maximum discharge recorded, 43 second-feet July 25, 1927; no flow for 

periods in each year except 1939, 1941, 1942, 1944-47.

Remarks.- Records excellent. Canal diverts from left bank of South Pork Feather River 

1 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 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.

29

30

27

28

28

28

22

17

16

16

16

15

16

16

22

23

23

23

23

23

23

21

22

23

23

22

22

22

22

22

22

Nov.

22

22

20

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

19

17

16

16

18

17

16

16

16

16

16

15

-

Dec.

14

13

13

15

15

15

15

14

14

14

14

14

14

14

14

14

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

Jan.

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

a!3

ai.3

a!3

hi 3

a!3

al3

h!3

a!3

a!3

Feb.

a!3

13

13

13

13

13

13

13

13

14

14

15

15

14

a!4

13

13

13

13

13

12

12

h!2

11

11

12

12

12

_

-

Month

October ....................................

November . ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

12

13

13

13

13

12

12

12

12

14

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

10

8.8

9.1

9.6

9.8

9.8

Apr.

9.6

8.6

8.4

8.4

8.4

11

14

14

14

14

14

14

14

14

14

14

14

14

13

13

14

13

13

13

13

13

21

26

26

28

Seccndfcot-days

685

532 

421

7,942.2

435

362

378 , 1

426.4

816

807

868 

817

7,342.5

May

26

26

26

26

26

28

28

26

26

26

26

26

28

26

26

26

26

27

27

27

27

26

26

26

26

27

27

27

27

27

27

Maximum

3O

22

15

35

13

15

14

26

27

29

30

30

30

June

29

28

28

28

28

27

28

28

28

27

26

26

27

28

27

26

26

26

26

26

26

26

27

26

27.

27

26

26

26

27

Minimum

15

15 

13

3 2

13

11

8.8

8 .4

26

26

21

26

25

8.4

July

30

30

30

30

30

30

30

28

28

3O

30

30

30

27

26

28

28

27

27

26

26

26

28

12

29

29

29

29

29

28

28

Aug.

28

28

23

28

28

26

26

26

26

26

26

26

26

26

27

27

26

26

26

26

26

27

27

27

26

26

26

27

27

28

28

Mean

22.1

17.7

13.6

21 .8

13.0

12 .9

12!2

14.2

26 .3

26 . 9

28 .O

26 . 7

27.2

20.1

Sept.

27

27

26

26

26

26

26

h27

h28

28

28

29

29

29

29

29

30

29

27

27

28

27

27

26

26

28

26

28

26

28

-

Runoff in 

acre- feet

1,36O

1,060 

835

15,760

799

718

75O

846

1,620

1,600

1,720

1,640

1,620

14,570

a Ho gage-height record; discharge Interpolated, 

h Computed from staff-gage readings.
FEATHER RIVER BASIN

Middle Fork Yuba River at Milton, Calif.

Location.- Water-stage recorder and concrete spillway control, lat. 39°31'22", long.

lau-ati'Ol", 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 fSet (from topographic map).

Drainage area.- 41 square miles.

Records available.- October 1928 to September 1934, October 1935 to September 1947. 

uecemoer 1925 to September 1928 at site 0.2 mile downstream.

Average discharge.- 17 years (1926-30, 1931-34, 1935-40, 1941-42, 1943-47), 102 secondreet (based on combined flow of Middle Fork at this station and Milton-Bowman tunnel 

at outlet).

Extremes.- Maximum discharge during year, 323 second-feet Feb. 12 (gage height, 0.66 

root); no flow over dam for long periods.

1925-34, 1935-47: 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. Milton-Bowman tunnel (see p. 35.1) diverts above station to Bowman 

Lake (see p. 358).

Cooperation.- Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

o.o o

.1 9

.2 42

.3 88

.4 143

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. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

41

0

0

0

0

0

0

oDec. Jan. Feb.

0

0

0

0

o

0

o

o

0

0

0

a!33

a!3

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

_-

Month

October ....................................

November. ..................................

December . ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

nay. Mnv .......................................

June. ......................................

July. ......................................

August .....................................

September. ..................................

Water year 1946-47 .:....................

Mar. Apr.

Secondfoot-days

0

41

0

6,735.1

0

146

0

0

229. 3

0

0

0

0

41R.3

May

2.8

78

80

39

20

8.7

.8

O

0

0

0

0

o

0

0

0

0

0

0

o

0

0

o

0

0

0

0

0

0

0

0

Maximum

o

41

0

364

0

133

0

0

80

0

0

0

0

133

June

Minimum

0

o

o

o

0

0

0

0

0

0

o

0

0

0

July Aug.

Mean

0

1.37

O

18.5

0

5.21

0

0

7.40

0

0

0

o

1.14

Sept.

Runoff in 

acre-feet

0

81

O

13,360

0

290

O

0

455

0

0

0

o

826

a No gage-height record; discharge estimated:
348 FEATHER RIVER BASIN

Middle Pork Yuba River above Oregon Creek, Calif.

Location - Water-stage recorder, lat. 39°23', long. 121°05', in SE^ sec. 28, T. 18 N., 

K. a E. , 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.

Records available.- March 1941 to September 1947. 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, 4,020 second-i'eet Feb. 12 (gage height, 8.24 

reetj; minimum, 20 second-feet Sept. 24, 25.

1941-47: 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, that of Sept. 24, 25, 1947.

Remarks.- Records good. Milton-Bowman tunnel (see p.351), above station, has diverted 

to Bowman Lake since 1928; also small diversions above station.

Rating tables, water year 1946-47, except period of Ice effect

(gage height, In feet, and discharge, In second-feet)

(Backwater corrections applied Oct. 23 to Nov. 18)

Oct. 1 to Nov. 19 Nov. 20 to Sept. 30

1.9 

2.1 

2.3 

2.6 

3.0

27 3.4

46 3.8

67 4.2

111 4.6

191 5.0

290 5.5

415 6.0

570 7.0

750

950

1,230

1,600

2,500

1.7

1.9

2.0 

2.3

2.5 

2.7 

2.9 

3.1

92

124

163

206

3.3 

3.6 

3.9

255

340

450

Note.- Same as preceding table above 

3.9 feet.

Discharge, in second-feet, water year October 1945 to September 1947

Day

1

4

5

6

11

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

37

43

42

41

37

36

34

34

34

33

33

33

33

33

34

39

38

37

37

36

35

38

44

37

33

32

32

32

32

32

32

Nov.

32

32

32

32

32

32

32

32

32

32

32

33

33

36

37

34

33

75

825

410

139

151

1.18C

356

191

143

119

102

95

88

-

Dec.

82

77

89

250

560

505

278

208

171

147

132

121

112

104

98

92

88

84

79

78

75

74

72

74

78

86

151

122

106

96

89

Jan.

88

84

77

78

77

73

70

69

66

65

64

64

64

65

58

b56

*b55

b55

b56

b56

b56

b58

58

58

58

64

68

78

77

79

81

Feb.

78

82

89

95

101

104

107 lie

119

180

153

2,310

1.65C

788

522

406

337

286

252

228

206

191

180

16S

165

159

167

163

_

-

Month

December. ...................................

Calendar year 1946 ......................

April. .....................................

May. .......................................

July.................. .....................

September. .................................

Water year 1946-47 ...'...................

Mar.

169

337

464

414

337

289

268

295

367

1,660

1,100

732

588

518

474

442

422

403

382

354

328

325

506

378

328

298

278

445

514

825

678

Apr.

579

550

579

522

474

466

430

410

403

372

350

337

334

340

354

354

368

344

322

319

316

278

252

238

230

225

220

223

216

213

-

Secondfoot-days

4 432

4,378

102,045

9 399

725

57,707

May

220

26

36

34

2

?

?,

275

258

23

2:

19

?.

1

1

176

165

15

14

14

7

7

1

134

130

12

12i:

6

?

9

114

110

K

10

!

7

?.n

94

91

9

!

9

8

6

8

i

8

101

Maximum

44

560

1,220

579

45

2,310

Peak discharge.- Nov. 19 15 D.m.) I f 480 sec. -ft.; Nov. 23 (7 a.m.

June

159

130

112

98

96

112

151

286

245

182

147

128

116

104

96

89

88

82

77

73

68

66

63

62

60

57

56

55

54

52

-

Minimum

32

32

72

32

213

29

21

21

July

50

49

47

46

45

45

43

41

40

40

39

39

38

36

36

36

35

35

34

33

32

32

32

32

31

31

31

30

30

29

29

Aug.

28

28

28

27

27

26

26

26

25

26

26

25

25

25

25

26

24

24

24

24

25

25

25

25

26

25

24

24

24

26

25

Mean

141

280

336

25 5

24.2

158

Sept.

23

23

22

22

22

21

21

41

45

34

27

27

27

26

23

22

22

22

23

22

21

21

21

21

21

21

21

21

21

21

-

Runoff in 

acre-feet

8,680

202,400

1,440

114,500

) 2,060 sec. -ft.; Feb. 12

(4:30 p.m.) 4,620 sec.-ft.j"Mar. 10 (io a.m.) 2,110 sec.-ft.' 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
FEATHER RIVER BASIN 349

Yuba River at Narrows Dam, Calif.

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£ (revised) 

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 1947. June 1903 to September 1941 (including 

now or i)eer ureek) at site 2 miles downstream, published as Yuba River at Smartville.

Extremes.- Maximum discharge during year, 27,200 second-feet Feb. 12, including flow 

through powerhouse; minimum daily, 155 second-feet (regulated) Nov. 17.

1941-47: 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. Flow regulated by Lake Spaulding (capacity, 70,500 acrefeet), Narrows Reservoir (capacity, 70,000 acre-feet), Bowman Lake (see p.358), Fordyce 

Lake (capacity, 42,000 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 1946 to September 1947

Day

1

2

3

4

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

29

30

31

Oct.

405

410

415

410

275

205

345

410

410

41O

415

38O

38O

405

4OO

405

405

405

365

355

380

385

390

390

395

370

365

400

400

380

380

NOV.

365

285

280

300

325

270

265

215

20O

200

195

205

245

205

220

160

155

33O

525

565

555

635

665

68O

700

710

715

715

715

720

-

Dec.

720

720

720

720

665

3,72O

2,830

2.O20

1,60O

1,370

1,210

1,130

1,090

1.O50

1,030

1,OOO

992

965

955

98O

956

94O

897

925

945

955

1,040

1,080

1,O20

937

935

Jan.

875

783

739

730

730

730

730

730

730

730

730

730

730

730

730

730

730

730

730

7OO

700

700

705

720

720

720

715

710

710

710

705

Feb.

705

545

710

710

710

710

710

710

710

710

710

7,480

13,600

5,520

3,850

3,OOO

2,640

2,260

1,990

1,8OO

1,620

1,5OO

1,370

1.3OO

1,250

J, 210

1,230

1,260

_

-

Month

December. ...................................

Calendar year 1946 ......................

February. ..................................

March. .....................................

April ......................................

May. .......................................

July. ......................................

September. .................................

Water year 1946-47 ......................

Mar.

1,230

2,280

3,86O

3,710

2,860

2,370

2,120

2,200

2,400

1O.9OO

8,630

5,540

4,220

3.64O

3,380

3.24O

3,240

3,180

3,11O

2,920

2,74O

2,64O

3.8OO

3,430

2,900

2,64O

2,450

3,180

4,4OO

6,84O

6,160

Apr.

5,040

4,500

4,880

4,260

3,720

3,620

3,460

3,280

3,3OO

3,040

2,910

2,830

2,830

2,930

3,04O

3.O6O

3,140

2,980

2,800

2,800

2,750

2,480

2,24O

2,130

2,070

2,02O

2.O2O

1,980

1,960

1.96O

Secondfoot-days

12 32O

36,167

766,376

22 592

11,835

465,947

May

2,040

2,240

3,150

2,92O

2,690

2,670

2.46O

2,120

1,8OO

1,61O

1,490

1,450

1,380

1,320

1,270

1,250

1,230

1,210

1,180

1,160

1,130

1,110

1.O9O

1,020

965

935

935

955

895

910

872

Maximum

3,720

8,740

2 340

475

13,600

June

1,050

1,320

1,210

1,O6O

965

l.OOO

1,230

2,300

2,34O

1,850

1,41O

1.26O

1,090

980

920

864

783

741

685

645

650

655

65O

535

490

505

500

445

445

520

Minimum

665

155

70O

445

270

155

July

58O

520

540

545

45O

450

545

545

535

505

480

350

345

450

460

460

480

475

330

310

455

450

455

455

460

340

350

465

46O

455

465

Aug.

50O

485

485

565

510

465

4SO

470

355

355

475

470

465

465

480

350

350

520

465

470

465

465

35O

350

445

443

405

450

435

360

36O

Mean

1,167

2,100

729

3 749

97 O

394

1.277

Sept.

360

460

460

460

465

350

35O

440

430

430

430

445

330

330

425

425

420

425

425

275

27O

380

390

405

410

34O

280

280

475

470

Runoff in 

acre-feet

71,740

1,520,000

230 5OO

23,470

924. 2OO
350 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 1947 (1940-43, 1945, low-water periods only) 

in reports of geological Survey. 1939-47 (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, 17,000 second-feet Feb. 13 (gage height, 59.95 

reet); minimum, 87 second-feet July 21 (gage height, 44.93 feet).

1943-44, 1945-47: Maximum daily discharge, 26,000 second-feet Dec. 29, 1945 (gage 

height, 65.78 feet).

1940-47: Minimum discharge recorded, 64 second-feet Nov. 28, 29, 1941.

Remarks.- Records good except those for Feb. 12 to Mar. 15, which are fair. Flow regulated 

t>y several reservoirs above station. Many diversions above station for power and 

irrigation.

Cooperation.- Records collected and prepared in cooperation with Division of Water 

Kecources, Department of Public Works, State of California.

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.

333

333

356

333

282

253

262

279 >79

276

276

272

262

276

295

309

326

348

326

285

302

330

316

309

309

299

289

306

344

344

341

Nov.

337

279

249

246

240

249

221

218

199

164

164

154

167

193

167

156

132

132

678

1,250

816

743

1,950

1,460

838

793

771

771

771

760

~

Dec.

743

738

727

1,370

1,950

4,920

4,380

2,680

2,O3O

1,720

1,520

1,400

1,310

1,260

1,220

1,190

1,170

1,140

1,120

1,120

1,100

1,080

1,050

1,060

1,090

1,090

1,120

1,230

1,170

1,130

1,080

Jan.

1,020

949

908

891

891

850

828

816

810

805

805

822

822

816

810

799

799

799

799

799

793

793

793

788

782

788

788

816

810

316

822

Feb.

822

711

722

788

788

793

799

788

793

816

873

4,610

016,000

ell, 000

o6,5OO

4,510

3,530

2,910

2,510

2,270

2,OSO

1,900

1,770

1,650

1,580

1,520

1,510

1,550

_

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March ......................................

April. .....................................

May. .......................................

June .......................................

July....... ................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

1,540

2,120

4,350

5,670

3,870

3.O1O

2,560

2,550

2,550

9,430

11,300

7,870

5,760

4,640

4,080

3,820

3,640

3,580

3,510

3,350

3,130

2,970

3,630

3,880

3,2.90

2,960

2,730

3,130

4,650

7,030

7,540

Apr.

6,280

5,250

5,840

5,370

4,480

4,150

3,99O

3,720

3,750

3,440

3,180

3,040

2,970

2,980

3,040

3,050

3,070

3,000

2,820

2,660

2,fi70

2,490

2,180

1,970

1,890

1,810

1,780

1,760

1,730

1,720

-

Seccnd 

foot-days

9,450

15, 268

45,908

835 1 902

25, 627

76,073

134,140

96,080

39, 191

22,001

5, 816

5,555

4,923

480,032

May

1,760

1,850

2,380

2,470

2,410

2,310

2,180

1,940

1,720

1,500

1,370

1,280

1,210

1,150

1,070

1,010

983

952

928

898

862

828

312

746

712

670

655

660

630

635

610

Maximum

356

1,950

4,920

11,000

1,020

16,000

11,300

6, 280

2,470

2,020

288

248

208

16,000

June

650

996

952

844

751

718

886

1,550

2,020

1,700

1,350

1,110

952

828

729

655

580

532

500

.452

436

413

413

391

318

307

266

250

232

220

-

Minimum

253

132

727

"13?

782

711

1,540

1,720

61O

220

103

136

118

103

July

235

288

250

277

274

218

215

261

261

266

232

215

159

131

163

182

196

19S

196

134

105

103

127

140

147

156

131

114

122

161

161

Aug.

173

203

203

210

248

205

196

191

193

159

143

156

182

186

191

196

156

136

173

196

196

193

193

166

145

138

161

 147

180

184

156

Mean

305

509

1,481

827

2,717

4,327

3,203

1, 264

733

188

179

164

1,315

Sept.

138

122

140

161 iea

189

152

129

143

175

201

203

198

152

140

182

208

201

201

189

140

122

118

161

191

196

159

136

122

186

-

Runoff in 

acre-feet

18,740

30, 28O

91,060

1,658,000

5O,83O

266, 1OO

190, 60O

77,730

43,640

11,540

11,020 .

9,760

952,200

o Backwater from Feather River; discharge computed on basis of normal recession curves 

unpublished records for Feather River at Yuba City.
FEATHER RIVER BASIN 

Milton-Bowman tunnel at outlet, Calif.

351

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 1947. 

Average discharge.- 18 vears (1928-30, 1931-47), 72.0 second-feet.

Extremes.- Maximum daily discharge during year, 450 second-feet May 2-6; minimum daily, 

 U.ti second-foot Oct. 21.

1928-30, 1931-47: 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 Feb. 13, 14, 

wnich 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.- Wat

Nevada irrigat 

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.

2.0 

1.6 

2.6 

2.4 

2.1

2.0 

1.8 

1.7 

1.6 

1.7

2.0 

2.0 

1.6 

1.6 

1.4

1.2 

.9 

.8 

.7. 

.8

.6 

1.0 

2.2 

2.7 

2. 2

1.8 

2.1 

2.6 

2.6 

2.2 

2.2

Nov.

2.2 

2.1 

2.0 

2.0 

1.8

1.4 

1.4 

1.4 

1.4 

1.4

1.8 

2.4 

2.1 

1.8 

1.7

1.7 

1.7 

4.5 

61 

70

35 

32 

126 

121 

83

55 

40 

32 

27 

24

3r-stage recorder graph and two discharge measurements furnished by 

Ion District.

barge, in second-feat, water year October 1946 to September 1947

Dec.

23 

21 

20 

26 

48

64 

51 

40 

34 

30

28 

26 

24 

24 

22

21 

20 

18 

19 

19

19 

18 

18 

18 

20

24 

25 

20 

21 

19 

18

Jan.

19 

17 

16 

16 

16

16 

16 

16 

16 

16

14 

14 

14 

15 

14

14 

14 

14 

14 

14

14 

13 

14 

14 

13

14 

15 

14 

14 

16 

15

Feb.

14 

14 

14 

14 

14

14 

16 

16 

16 

18

18 

106 

175 

270 

125

98 

82 

72 

67 

64

60 

58 

58 

62 

64

66 

64 

58

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

ffa

ber. ...................................

nber. ...................................

lendar year 1946 

ary

1. .....................................

St................ .....................

ter year 1946-47 ...............

Mar.

58 

88 

62 

67 

62

55 

55 

52 

50 

80

87 

74 

72 

76 

83

97 

116 

132 

128 

144

148 

163 

215 

157 

142

138 

138 

154 

179 

172 

150

Apr.

142 

125 

114 

102 

96

93 

90 

89 

89 

90

108 

134 

181 

252 

330

375 

425 

400 

390 

400

390 

269 

233 

245 

258

265 

272 

282 

325 

390

May

425 

450 

450 

450 

4SO

450 

430 

350 

289 

239

226 

215 

198 

193 

195

209 

209 

198 

193 

188

184 

172 

154 

136 

121

106 

98 

94 

88 

82 

93

Second- u«»i n, foot-days "«i»»»

54.7 2.7 

740.8 126 

798 64

32,828.0 440

461 19 

1,717 270 

3,394 215 

6,954 425 

7,335 450 

1 , 948 . 3 184 

307.4 16 

137.5 7.0 

58.7 3.3

23,906.4 450

June

184 

140 

104 

84 

85

100 

138 

165 

154 

109

89 

76 

68 

60 

54

48 

48 

43 

39 

. 35

19 

8.9 

9.2 

9.2 

11

11 

12 

13 

16 

16

Minimum

0.6 

1.4 

18

0.6

13 

14 

50 

89 

82 

8.9 

7.0 

2.4 

1.4

0.6

July

16 

15 

14 

13 

13

12 

12 

11 

11 

11

9.9 

9.9 

9.6 

9.6 

9.2

9.2 

8.9 

8.9 

8.9 

8.9

8.6 

8.6 

8.6 

8.0 

8.0

.6 

.6 

.6 

.4 

.4 

7.0

Aug.

7.0 

6.8 

6.4 

6.4 

6.2

6.2 

6.2 

6.2 

6.2 

6.0

6.0 

5.2 

4.3 

4.1 

3.9

3.7 

3.7 

3.5 

3.5 

3.5

3.5 

3.5 

3.5 

3.5 

3.1

2.4 

2.6 

2.6 

2.6 

2.6 

2.6

Sept.

2.6 

2.6 

2.6 

2.6 

2.6

2.4 

2.6 

3.3 

2.7 

2.1

1.8 

1.8 

1.8 

1.8 

1.7

1.7 

1.7 

1.6 

1.6 

1.6

1.6 

1.6 

1.4 

1.4 

1.4

1.4 

1.6 

2.0 

1.7 

1.4

Ifean Runoff in

*ean acre-feet

1.76 108 

24.7 1,470 

25.7 1,580

89.9 65,100

14.9 914 

61.3 3,410 

109 6,730 

232 13,790 

237 14,550 

64.9 3,860 

9.92 610 

4.44 273 

1.96 116

65. 5 47,410

Note.- Stage-discharge relation indefinite Feb. 13, 14, Apr. 15-21, Apr. 29 to May 8; discharge 

computed on basis of records for Middle Fork Yuba River at Milton and above Oregon Creek, and South 

Fork Yuba River near Cisco.
352 FEATHER RIVER BASIN

Oregon Creek near North San Juan, Calif.

Location.- Water-stage recorder, lat. 39°24', long. 121°05', in SWi sec. 22, T. 18 N., 

K. o E., 1 mile upstream from mouth and 3 miles northeast of North San Juan. Altitude 

of gage, about 1,500 feet (from topographic map).

Drainage area.- 35.1 square miles.

Records available.- October 1933 to September 1947. October 19^.0 to September 1933 at 

site o.y mile downstream.

Average discharge.- 36 years (1911-47), 74.1 second-feet.

Extremes.- Maximum discharge during year, 1,270 second-feet Feb. 12 (gage height, 7.09 

reet); minimum, 1.7 second-feet Sept. 22, 23 (gage height, 1.51 feet).

1910-47: 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 several days in July, August 1931, September 

1934.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. Small diversions above station for irrigation and mining.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, In second-feet)

1.5 1.6 2.0 16 3.O 67 4.8 342 

1.6 3.2 2.2 24 3.3 94 5.4 511 

1.7 5.5 2.4 32 3.6 128 5.8 650 

1.8 8.5 2.6 41 4.0 185 6.2 815 

1.9 12 2.8 52 4.4 254 6.8 1,110

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 

16

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.0 

5.2 

6.0 

6.0 

5.2

5.0 

4.8 

4.8 

4.5 

4.5

4.3 

4.3 

4.0 

4.O 

4.8

5.8 

5.5 

5.0 

5.0 

4.8

4.8 

5.5 

7.2 

6.0 

5.0

4.8 

4.8 

4.5 

4.5 

4.8 

4.8

Nov.

.8 

.8 

.5 

.3 

.5

.5 

.5 

.5 

.3 

.5

.3 

.3 

.5 

5.0 

5.2

4.8 

4.8 

16 

194 

92

28 

47 

264 

61 

36

27 

22 

18 

16 

14

Dec.

13 

12 

17 

127 

237

166 

95 

67 

50 

42

36 

31 

28 

25 

24

22 

21 

20 

18 

17

16 

16 

15 

15 

16

16 

25 

24 

21 

20 

18

Jan.

18 

17 

15 

16 

16

15 

14 

13 

13 

13

13 

12 

12 

13 

11

11 

13 

12 

12 

12

12 

11 

10 

10 

10

11 

12 

13 

14 

17 

18

Feb.

16 

15 

16 

16 

18

20 

22 

24 

29 

65

54 

722 

406 

209 

144

113 

91 

75 

64 

56

47 

42 

39 

36 

33

32 

35 

33

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

MAV

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

mber. ..................................

lendar year 1946 

ary

1. .....................................

St. ....................................

ember ..................................

ter year 1946-47 ......................

Mar.

40 

84 

133 

123 

103

85 

77 

91 

164 

880

446 

276 

207 

176 

152

134 

123 

110 

100 

87

78 

78 

105 

83 

75

69 

61 

130 

176 

305 

252

Apr.

203 

188 

201 

alSO 

a!60

a!50 

a!40 

alSO 

a!20 

allO

alOO 

a90 

a90 

a90 

a95

a95 

a95 

a90 

a90 

a85

a85 

a75 

a6O 

a45 

a40

a35 

a33 

a32 

30 

27

May

26 

25 

23 

22 

21

21 

20 

20 

20 

19

19 

18 

18 

16 

16

15 

15 

14 

13 

13

12 

12 

11 

10 

10

11 

12 

13 

12 

11 

a!3

Second- Maxim,,, foot-days "a*!"""1

154.2 7.2 

913.1 264 

1,270 237

19, 436. O 479

409 18 

2,472 722 

5,003 880 

12,964 203 

501 26 

515.9 56 

146.1 7.5 

78.1 3.2 

63.7 2.5

14,490.1 880

June

a30 

a25 

a20 

a!7 

a!5

a!8 

31 

56 

32 

26

22

20 

18 

17 

15

14 

14 

13 

12 

11

10 

10 

10 

9.8 

9.2

8.5 

8.2 

8.2 

8.2 

7.8

Minimum

4.0 

4.3 

12

2.3

10 

15 

40 

27 

10 

7.8 

3.2 

2.0 

1.9

1.9

July

7.5 

7.2 

6.6 

6.3 

6.3

6.0 

5.8 

5.8 

5.5 

5.2

5.2 

5.2 

5.0 

5.0 

4.8

.8 

.5 

.3 

.3

.0

3.8 

3.6 

3.6 

3.4 

3.2

3.2 

3.2 

3.2 

3.2 

3.2 

3.2

Aug.

3.2 

3.2 

3.2 

3.2 

3.0

3.0 

2.8 

2.7 

2.7 

2.7

3.2 

2.7 

2.2 

2.0 

2.0

2.2

2.2 

2.2 

2.0 2.0-

2.2 

2.2 

2.3 

2.3 

2.3

2.3 

2.3 

2.3 

2.3 

2.5 

2.7

Sept.

2.5

2.3 

2.3 

2.3 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.0

2.0 

2.2 

2.2 

2.0 

2.0

2.0 

1.9 

1.9 

1.9 

1.9

1.9 

2.0 

2.0 

2.2 

2.2

Moan Runoff in Mean acre-feet

4.97 306 

30.4 1,810 

41.0 2,520

53.2 38,55&

13.2 811 

88.3 4,900 

161 9,920 

98.8 5,880 

16.2 994 

17.2 1,020 

4.71 290 

2.52 155 

2.12 126

39.7 28,730

Peak discharge.- Feb. 12 (4 D.m.) I f 270 sec. -ft.; Mar. lo (10:3O a.m.) 1,26O see. -ft.; Mar. so

a No gage-height records discharge computed on basis of recorded range In stage and records for 

nearby streams.
FEATHER RIVER BASIN 353

North Pork Yuba River below Goodyears Bar, Calif.

Location.- Water-stage recorder, lat. 39°32", long. 120°56', in SW^ sec. 11, T. 19 N., 

R. 9 K., 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 1947.

Average discharge.- 14 years (1931-37, 1939-47), 712 second-feet.

Extremes.- Maximum discharge during year, 6,580 second-feet Feb. 12 (gage height, 10.48 

reet); minimum, 97 second-feet Sept. 14-17.

1930-47: 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

Rating tables, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Feb. 12 Feb. 12 to Sept. 30

1.7 129 3.5 456 7.0 2,450 1.4 91 2.7 260 5 

1.9 152 4.0 610 8.0 3,450 1.6 107 3.0 320 5 

2.1 177 4.5 808 8.8 4,360 1.8 127 3.5 440 6 

2.4 222 5.0 1,040 2.1 162 4.0 58S 6 

3.0 334 6.0 1,650 2.4 207 4.5 775

Discharge, in seccnd-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.

153 

164 

172 

163 

152

148 

148 

148 

147 

144

140 

140 

141 

141 

144

150 

148 

151 

148 

147

146 

159 

185 

157 

151

148 

146 

145 

144 

145 

146

Nov.

146 

142 

140 

146 

146

14S 

147 

144 

140 

142

142 

144 

144 

152 

147

146 

147 

255 

1,780 

695

347 

603 

2,530 

759 

495

395 

345 

316 

292 

278

Dec.

263 

252 

251 

513 

994

852 

568 

459 

397 

363

338 

322 

306 

292 

282

267 

258 

242 

247 

243

238 

235 

232 

235 

251

278 

352 

278 

274 

251 

243

Jan.

247 

230 

224 

228 

225

224 

217 

214 

211 

209

206 

206 

204 

206 

194

198 

196 

194 

192 

191

190 

188 

188 

190 

191

203 

204 

209 

208 

206 

202

Feb.

197 

202 

206 

216 

222

232 

240 

243 

276 

343

353 

4,260 

2,290 

1,270 

941

795 

692 

619 

566 

526

490 

462 

446 

440 

435

437 

451 

414

Month

Octc 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

nber. ...................................

lendar year 1946 

ary

amber. .................................

ter year 1946-47 ......................

Peak discharge.- N

6,58(5 sec. -ft.; Mar.

Mar.

475 

727 

767 

708 

636

569 

541 

532 

604 

2,190

1,420 

1,060 

92S 

887 

887

905 

946 

965 

923 

905

878 

964 

1,340 

1,010 

918

874 

S38 

1,040 

1,220 

1,520 

1,360

Apr.

1,210 

1,110 

1,060 

980 

928

932 

896 

874 

846 

815

833 

856 

941 

1,060 

1,140

1,220 

1,280 

1,190 

1,150 

1,200

1,140 

955 

905 

900 

896

910 

910 

900 

928 

990

Secondfcct-days

4,661 

11,553 

10,576

248,492

6,395 

18,264 

29,537 

29,955 

23,416 

13,476 

5,231 

3,684 

3,046

159,794

May

1,120 

1,300 

1,340 

1,250 

1,190

1,170 

1,100 

985 

874 

795

771 

731 

692 

673 

658

666 

658 

640 

626 

615

595 

582 

562 

535 

505

474 

485 

468 

435 

419 

502

Maximum

185 

2,530 

994

2,810

247 

4,260 

2,190 

1,280 

1,340 

1,150 

221 

132 

109

4,260

June

735 

608 

523 

457 

488

550 

716 

1,150 

896 

669

572 

511 

462 

427 

396

374 

369 

344 

327 

312

298 

288 

276 

266 

260

253 

246 

242 

235 

226

Minimum

140 

140 

232

137

188 

197 

475 

815 

419 

226 

134 

112 

97

97

July

221 

217 

210 

207 

202

199 

194 

191 

185 

182

180 

179 

175 

170 

168

163 

161 

160 

155 

152.

148 

145 

145 

145 

144

143 

142 

140 

138 

136 

134

.0 1,000 

.5 1,260 

.0 1,570 

.9 2,290

Aug.

132 

131 

130 

129 

126

124 

122 

120 

119 

121

122 

120 

119 

118 

117

117 

115 

114 

113 

114

116 

116 

117 

115 

113

112 

112 

113 

116 

117 

114

Mean

150 

385 

341

681

206 

652 

953 

99S 

755 

449 

169 

119 

102

438

3V. 19 (3 p.m.) 2,860 sec. -ft.; Nov. 23 (4 a.m.) 4,400 sec. -ft.; Feb. 

10 (11 a.m.) 2,850 sec. -ft.; Mar. 29 (11:30 p.m.) 1,740 sec. -ft.

Sept.

109 

106 

104 

103 

102

102 

102 

105 

105 

103

101 

100 

99 

97 

97

98 

98 

105 

107 

103

102 

102 

101 

100 

100

99 

99 

99 

99 

99

Runoff in 

acre-feet

9,240 

22,920 

20,980

492,900

12,680 

36,230 

58,590 

59,410 

46,440 

26,730 

10,380 

7,310 

6,040

317,000

12 (3 p.m.)
354 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 downstream 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 1947.

Extremes - Maximum discharge during year, 18,600 second-feet Feb. 12; minimum daily, 52 

second-feet (regulated) Nov. 10.

1940-47: Maximum discharge, 44.200 second-feet Jan. 21, 1943; minimum daily, 50 

second-feet (regulated) Oct. 8, 1944.

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 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.

240 

252 

254 

262 

277

277 

279 

280 

308 

306

302 

308 

308 

294 

282

299 

306 

290 

225 

223

223 

223 

223 

240 

254

272 

270 

270 

236 

151 

140

Nov.

151 

194 

192 

194 

143

143 

144 

143 

102 

52

120 

143 

158 

194 

220

192 

192 

279 

349 

934

859 

771 

5,370 

1,980 

1,070

798 

672 

648 

648 

648

Dec.

648 

648 

648 

626 

1,340

2,630 

1,570 

1,140 

920 

780

718 

669 

659 

659 

650

650 

650 

650 

650 

642

642 

642 

642 

634 

634

634 

634 

626 

618 

610 

578

Jan.

522 

483 

419 

407 

407

407 

402 

402 

402 

407

407 

404 

377 

351 

342

315 

324 

330 

330 

330

302 

196 

214 

204 

69

75 

204 

208 

208 

239 

355

Feb.

360 

360 

337 

322 

318

318 

334 

266 

318 

334

522 

10,100 

7,560 

3,150 

2,450

1,920 

1,620 

1,370 

1,180 

1,080

993 

919 

847 

812 

790

768 

807 

819

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Ua.ro 

Apr! 

Hay

June 

July 

Augu 

Sept

ffa

ber. ...................................

lendar year 1946 

ary

h. ........................... .........

1: .....................................

St. ....................................

saber ..................................

ter year 1946-47 ......................

Mar.

784 

1,640 

2,050 

1,970 

1,640

1,390 

1,250 

1,220 

1,210 

5,970

4,950 

3,160 

2,510 

2,260 

2,190

2,150 

2,190 

2,200 

2,140 

2,050

1,900 

1,860 

2,870 

2,340 

2,000

1,820 

1,720 

1,890 

2,910 

4,560 

4,170

Apr.

3,420 

2,980 

2,960 

2,650 

2,380

2,370 

2,290 

2,140 

2,120 

1,980

1,970 

1,950 

2,000 

2,140 

2,260

2,290 

2,380 

2,220 

2,100 

2,070

2,070 

1,800 

1,640 

1,580 

1,520

1,500 

1,500 

1,480 

1,460 

1,530

Secondfoot-days

8,074 

17,703 

24,441

456,758

10,042 

40,974 

72,964 

62,750 

34,279 

20,782 

9,697 

6,743 

5,583

314,032

Peak discharge.- Nov. 23 (9 a.m.) 7,900 sec. -ft.; Peb

May

1,600 

1,860 

1,990 

1,920 

1,800

1,7ZO 

1,660 

1,530 

1,370 

1,230

1,150 

1,110 

1,050 

992 

958

948 

936 

924 

887 

865

843 

810 

780 

740 

712

685 

677 

582 

687 

663 

600

Maximum

308 

5,370 

2,630

5,370

522 

10,100 

5,970 

3,420 

1,990 

1,840 

381 

363 

277

10,100

June

936 

996 

878 

742 

679-

771 

962 

1,840 

1,640 

1,210

962 

808 

722 

666 

634

567 

512 

483 

472 

467

467 

425 

400 

405 

360

350 

352 

356 

358 

362

Minimum

140 

52 

578

52

69 

266 

784 

1,460 

582 

350 

220 

65 

61

52

July

36Z 

362 

354 

352 

352

352 

358 

347 

322 

320

328 

297 

284 

314 

314

310 

310 

308 

279 

272

306 

297 

290 

282 

297

220 

220 

306 

381 

331 

270

Aug.

351 

198 

198 

262 

337

349 

292 

337 

194 

192

266 

298 

214 

226 

220

79 

79 

363 

279 

218

225 

225 

66 

65 

214

222 

212 

212 

212 

69 

69

Mean

260 

590 

788

1,251

324 

1,463 

2,354 

2,092 

1,106 

693 

313 

218 

186

860

Sept.

69 

215 

215 

222 

220

63 

72 

222 

220 

220

250 

277 

246 

66 

240

240 

240 

236 

183 

61

61 

225 

220 

228 

223

231 

63 

65 

245 

245

Runoff In 

ao re-feet

16,010 

35,110 

48,480

906,000

19,920 

81,270 

144,700 

124,500 

67 , 990 

41,220 

19,230 

13,370 

11,070

622 , 900

12 (5 p.m.) 18,600 sec. -ft. ; Mar. 10

(4 p.m.) 8,260 see.-ft.
FEATHER RIVER BASIN 355

South Pork Yuba River near Cisco, Calif.

Location.- Water-stage recorder, lat. 39°19', long. 120°33', in sec. 19, T. 17 N., R. 13 

fi., 0.5 mile downstream from Rattlesnake Creek, 1 mile west of Cisco Grove, and 1.2 

miles northwest of Cisco. Altitude of gage, about 5,500 feet (from topographic map).

Drainage area.- 50.2 square miles.

Records available.- April 1942 to September 1947.

Extremes.- Maximum discharge during year, 1,530 second-feet Feb. 12 (gage height, 6.82 

reet); minimum, 2.0 second-feet probably Nov. 16.

1942-47: 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.

Rating tables, water year 1946-47, except periods of loe effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to May 2 Hay 3 to Sept. 30

1.7 1.6 2.4 26 4.5 4S5 2.1 12 2.4 30 3.O 93

1.8 3.4 2.6 41 5.0 670 2.2 16 2.6 47 3.2 126

1.9 5.7 2.9 74 5.6 915 2.3 22 2.8 68 3.5 189

2.0 8.6 3.2 122 6.0 1,100

2.1 12 3.5 189 Note:- Same as preceding table 

2.3 20 4.0 322 above S.5 feet.

Discharge, in second-feet, water year October 1946 to September 1947

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.

23

22

23

21

20

20

20

20

19

19

19

19

19

19

19

19

18

18

18

18

18

20

20

18

18

19

19

19

19

18

18

Nov.

18

17

13

12

16

16

14

11

7.7

5.2

3.4

2.9

2.7

2.9

a3

a2

a3

alO

a250

allO

a50

a45

a500

alSO

a70

a50

42

38

35

32

-

Dec.

29

27

26

42

145

102

60

47

39

37

36

35

34

32

32

28

28

b26

25

26

26

26

26

30

47

52

51

36

b'52 36

23

Jan.

30

b27

b26

24

23

23

22

22

22

23

23

b23

23

21

*b20

19

19

19

19

19

19

19

20

22

23

25

b26

b26

b26

24

23

Feb.

23

25

29

33

35

43

47

44

45

44

52

1,030

512

261

187

147

114

98

93

92

84

86

93

114

122

130

112

89

_

_

-

Month

Ootober. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

llay. .......................................

June .......................................

July..... ..................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

120

177

100

100

82

77

73

68

68

172

122

112

124

158

201

259

307

319

298

304

295

337

325

201

179

187

206

261

259

233

199

Apr.

196

154

137

112

107

111

118

118

126

152

233

307

437

543

576

658

726

636

674

718

568

374

374

437

485

525

514

496

557

686

-

May

902

1,020

983

858

822

782

662

503

414

368

346

328

328

340

343

289

328

331

316

223

251

246

216

187

158

123

90

92

93

98

183

Second- Maximum foot-days "ajtimuii

599 23

1,531.8 500

1,247 145

68,005.8 1,240

700 30

3,784 1,030

5 923 337

Il!s55 726

12 223 1 020

3^787 *441

1,625 103

654 24

525 21

44,453.8 1,030

June

441

233

166

132

158

187

346

424

298

182

137

107

93

73

61

54

51

45

38

34

35

34

30

27

24

22

36

107

107

106

-

Minimum

T -Lofl 

2

25

2

19

23

68

107

90

22

24

16

15

2

July

103

98

93

83

80

78

73

69

66

61

59

59

49

41

38

38

37

36

44

46

45

45

44

44

42

27

27

2S

25

25

24

Aug.

24

24

24

a24

a24

24

24

23

23

23

23

23

23

23

22

22

22

22

22

22

22

22

19

17

16

16

16

16

17

16

16

Sept.

16

16

16

16

16

16

16

16

16

16

15

15

15

15

15

15

15

19

21

21

21

21

20

20

20

20

20

19

19

19

-

 _ Runoff in *ean acre-feet

19*3 1 190

5l!l 3^040

40.2 2,470

186 134,900

22.6 1,390

135 7,510

191 11 750

395 23*510

394 24 240

126 7^510

52.4 3,220

21.1 1,300

17.5 1,040

122 88,170

Peak discharge.- Nov. 23, 1,220 sec.-ft.; Feb. 12 (3 p.m.) 1,530 sec.-ft.; May 2 (7:30 p.m.) 1,480 

sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height reuordj discharge computed on basis of recorded range in stage, weather records, 

and records for Rubicon River near Georgetown.

b Stage-discharge relation affected by ice.
356 FEATHER RIVER BASIN

South Pork Yuba River near Washington, Calif.

Location.- Water-stage recorder, lat. 39°22', long. 120°46', in sec. 8, T. 17 N., R. 11 

E., 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 square miles.

Records available.- March 1942 to September 1947.

Extremes.- Maximum discharge during year, 2,690 second-feet Feb. 12 (gage height, 6.98 

reet); minimum, 17 second-feet Aug. 26, Sept.. 11-17, 23-25.

1942-47: 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, 17 second-feet at various times in 1942, 1945, 1947.

Remarks.- Records good. Plow regulated by Lake Spaulding (capacity, 70,500 acre-feet), 

Bowman Lake (see p.358), and by many smaller reservoirs. Diversion for power and 

irrigation above station.

Rating table, water year 1946-4:7 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Oct. 1 to Feb. 10)

0.5 15 2.0 120

.8 24 2.5 190

1.0 33 3.0 286

1.3 52 3.5 416

1.6 77 4.0 595

4.5 805

5.0 1,060

5.5 1,350

6.0 1,71O

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

Oot.

24

26

27

24

23

22

22

22

22

22

20

20

20

20

20

21

20

19

19

19

19

22

25

20

19

20

19

19

20

39

21

Nov.

20

19

19

18

18

18

IS

19

18

18

18

18

18

37

20

18

18

39

574

219

74

147

682

141

87

69

60

54

49

45

-

Dec.

43

40

39

120

310

236

185

1S7

14O

128

123

118

112

108

107

102

99

97

85

80

82

85

84

85

92

104

141

113

105

96

59

Jan.

54

49

46

46

45

44

41

40

38

37

36

37

37

37

34

36

35

34

34

34

32

32

31

31

32

34

38

39

40

39

41

Feb.

40

43

45

47

50

53

57

58

75

116

91

1,540

625

320

246

206

184

164

152

133

119

90

81

77

68

56

70

69

_

_

-

Month

October ....................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. ................................ ....

April ......................................

May

June .......................................

July. ......................................

August .....................................

September. ................................

Water year 1946-47 ......................

Mar.

92

236

252

262

232

198

133

125

148

890

458

386

284

242

230

220

210

201

196

171

160

196

297

220

176

138

130

184

238

400

260

Apr.

Seoondfoot-days

675

2 572

3^475

118,266

If 183

4,885

7 f 565

4, 338

4,981

1,430

627

596

533

32,860

213

196

196

195

228

236

21O

188

228

217

159

143

141

142

137

129

128

121

114

120

95

98

102

87

85

87

84

83

91

85

May

80

95

806

689

571

589

392

191

84

74

66

80

87

94

112

104

54

66

67

67

60

58

57

58

58

54

62

66

57

42

41

Maximum

39

682

310

2,650

54

1,540

890

236

8O6

129

24

2O

19

1,540

June

72

48

43

41

44

51

90

129

123

109

91

66

54

48

43

42

41

38

26

23

22

24

23

21

20

20

20

20

19

19

Minimum

19

1 JLOQ 

59

18

31

40

9283 *

41

19

19

18

17

17

July

20

19

19

19

2O

20

20

20

20

20

20

21

21

2121'

21

20

20

20

20

20

30

20

20

20

20

20

20

21

24

20

Aug.

20

20

20

20

20

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

20

20

20

20

19

18

18

19

19

19

19

Sept.

19

18

18

18

18

18

18

18

19

18

18

17

17

17

17

17

17

18

' 18

18

18

18

17

17

17

18

18

18

18

18

uo». Runoff in *ean aore-feet

21.8 1,340

85.7 5,10O

112 6,890

324 234,600

38.2 2,35O 

174 9,690

244 15,000

145 8,600

161 9; 88O 47.7 2 840

2o!2 l)240

19 2 1 ISO

17!s l)o60

90.0 65,170
FEATHER RIVER BASIN 

South Pork Yuba River at Jones Bar, Calif.

357

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 1947.

Extremes.- Maximum discharge during year, 5,860 second-feet Peb. 12 (gage height, 11.15 

reet); minimum, 1.1 second-feet Sept. 17.

1940-47: 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 

Pork Yuba River near Washington.

Day

1

2

3

4

5

6

7

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 1946 to September 1947

Oct. Nov.

_

-

-

-

-

_

-

-

-

-

t31

35

35

42

-

41

39

51

-

-

_

-

-

-

-

_

-

-

-

-

-

Dec. Jan.

_

-

-

-

-

_

_

-

-

-

_

_

.

-

-

69

75

75

78

75

74

72

7171"

71

75

81

121

117

117

119

Feb.

119

117

121

127

132

136

144

146

156

262

220

3,410

_

_

-

t4O6

386

343

3O9

288

266

2 2O

192

182

158

136

144

144

_

_

-

Month

October ....................................

November. ..................................

December. ..................................

Calendar year ......................

January. ...................................

February. ..................................

llaroh. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

The period ...............................

Mar.

152

433

628

623

492

419

335

340

388

2,O9O

1,O80

773

616

543

501

468

439

4O5

391

363

337

340

504

391

348

317

302

487

543

888

637

Apr.

528

519

556

5O4

471

462

433

416

453

414

369

348

335

319

304

290

285

280

262

255

246

229

222

213

202

196

200

194

190

194

Secondfoot-days

16,573

9,889

94.5

42.6

-

May

184

178

864

664

566

669

500

_

-

_

_

_

-

_

_

_

-

_

_

_

-

_

_

_

_

-

Maximum

2,090

556

6.O

1.8

-

June

_

_

_

t92

95

110

167

281

214

207

161

124

95

73

64

57

56

52

44

_

_

_

-

_

..

_

_

-

Minimum

152

190

1.7

1.2

-

July

_

_

_

-

_

_

_

-

_

_

_

-

til

11

10

9.8

9.0

7.4

7.8

7.8

8.2

7.8

7.8

7.4

7.4

1O

9.8

Aug.

6.0

6.0

5.7

5.0

4.0

3.6

3.1

2.8

2.8

2.8

2.S

2.6

2.8

2^8

2.6

2.6

2.4

2.2

2.2

2.2

2.8

3.1

3.1

2.8

2.8

2.0

1.7

2.0

2.2

2.2

Mean

535

330

3.05

1.42

-

Sept.

1.8

1.7

1.6

1.4

1.4

1.4

1.2

1.2

1.6

1.6

1.6

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.6

1.7

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

Runoff in 

acre- feet

32,070

19.61O

187

84

-

t Result of discharge measurement. 

Note.- Ho gage-height record Oct. 1 to Nov. 11, Nov. 15, Nov. 19 to Jan. 15, Feb. 13-16, May 8 to 

June 4, June 20 to July 17.

8S4211 O- 49 - 24
358 FEATHER RIVER BASIN

Bowman Lake near Graniteville, Calif.

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.

Drainage area.- 30 square miles.

Records available.- December 1926 to September 1947.

Extremes.- Maximum contents observed during year, 68,800 acre-feet June 27-30 (elevation, 

5,563.8 feet June 29, 30); minimum observed, 6,150 acre-feet Jan. 23 (elevation, 

5,457.5 feet).

1926-47: 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. Usable capacity, 68,200 acre-feet between elevations and 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. 351), and releases it through Bowman-Spaulding 

Canal (see p. 360) which conveys it to reservoirs of Pacific Gas & Electric Co. Water 

is eventually used for irrigation by Nevada Irrigation District. Record of contents, 

computed from gage readings made at odd times, shows total contents, all of which is 

available for release.

Cooperation.- Record of gage heights furnished by Nevada Irrigation District.

Contents, In acre-feet, water year October 1946 to September 1947

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.

35,700

-

-

35,700

-

35,700

35,700

-

-

-

35,400

35,400

-

35,200

-

34, 600

-

33, 700

-

32,900

32,400

-

31,600

.

31,000

_

-

-

29,800

-

29,000

NOV.

28,700

-

-

27,600

-

27,000

_

-

.

-

_

24,600

23,400

23,200

.

22,400

-

22,200

-

.

21,800

22,400

22,400

-

_

22,200

21,800

21,600

21,400

-

Dec.

21,200

21,000

20, 800

20, 300

-

20,400

.

-

19,700

-

19,200

18,900

18,600

18,500

-

_

_

17,200

_

16,500

16,400

_

15,900

_

14,8OO

14,500

14,400

-

_

.

12,800

Jan.

_

12,100

12,000

.

-

_

10,400

10,300

_

9,800

9,480

9,200

9,040

_

8,430

8,370

-

.

.

6,780

_

6,150

_

6,780

_

6,840

-

-

_

6,800

Feb.

_

-

_

_

-

6,780

6,780

6,900

6,930

-

6,600

_

7,950

8,490

8,700

8,760

8,760

8,700

_

8,580

8,460

.

-

8,070

-

7,800

.

7,530

-

.

-

Mar.

.

_

_

.

-

_

_

_

_

-

7,200

7,500

7,860

8,250

_

9,000

_

_

-

11,200

_

_

14,200

14,400

15,000

_

_

16,900

Apr.

17,700

_

19,000

19,400

19,900

20,800

2O.90O

'21,400

_

_

23,200

23,500

25,700

26,500

27,700

30,200

31,200

32,100

32,800

_

-

34,900

_

36,600

37,600

38,400

Hay

_

40,100

42,100

44,200

45,600

46,800

48,000

50,000

_

51,900

_

53,200

54,400

55,600

56,100

-

57,100

_

59,600

_

59,200

59i 400

_

60,000

_

60,400

61,000

June

61,700

62,400

62,800

63,000

63,200

63,700

64,400

65,900

66,500

66,600

_

67,400

67,600

67,600

67,800

68,000

68,100

68,300

_

68,500

68,600

68,600

68,700

_

68,800

68,800

68,800

68,800

July

68,300

68,000

67,200

66,400

66,000

65,600

65,000

64,800

64,400

63,600

63,200

62,800

62,400

61,600

61,200

60,800

60,400

60,000

59,500

-

58,200

57,700

57,200

56,800

56,400

56,000

Aug.

55,600

55,100

54,800

54,200

53,800

53,300

52,400

52,000

51,600

51,200

50,700

50,300

49,600

49,000

48,400

48,200

4T, 700

47,400

46,600

45,700

45,200

45,000

45,000

44,600

44,100

Sept.

43,700

43,400

43,100

42,400

_

41,800

41,300

40,600

_

38,700

38,200

37,800

36,900

36,600

36,000

35,700

35,400

34,900

34,100

33,500

33,300

32,900

32,300

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31................

Calendar year 1946...

May 31................

Sept. 30................

Water year 1946-47...

Elevation 

(feet)

5,476.6

-

_

5 523 7 * "

5,513.8

^

Contents 

(acre-feet)

12,800

-

7 530

32,300

-

Change In contents 

during month 

(acre-feet)

-8,600

-15,600

-11,800

-3,500

e Interpolated.
FEATHER RIVER BASIN 

Canyon Creek below Bowman Lake, Calif.

359

Location.- Water-stage recorder and concrete control, lat. 39°26', long. 120°40', in SE^ 

sec. 7, T. 18 N., R. 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 1947.

Average discharge.- 20 years, 33.2 second-feet.

Extremes - Maximum discharge during year, 58 second-feet (regulated) Feb. 12 (gage height, 

2.27 reet); minimum, O.I second-foot Sept, 2.

1927-47: 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. Storage in Bowman Lake (see p.358) and diversion into BowmanSpauTding Canal (see p.360). Bowman Lake receives water f^om Middle Fork Yuba River 

through Milton-Bowman tunnel (see p. 351).

Cooperation.- Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

1.0 0.05 1.4 3.8 1.8 10 

1.1 .7 1.5 4.9 1.9 17 

1.2 1.7 1.6 6.2 2.0 26 

1.3 2.7 1.7 7.8 2.1 37

Discharge, in second- feet, water year October 1946 to Septeaber 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.

2.7 

2.8 

2.8 

2.7 

2.7

2.7 

2.7 

2.7

2.6 

1.0

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.5 

.4

.4 

.7 

.7 

.5 

.5

.5 

.5 

.5 

.5 

.5 

.5

Nov.

0.5 

.5

.6 

.6 

.7

.7 

.7

.8 

.8

.8 

.7 

.6 

.6 

.6

.7 

.7 

3.3 

19 

2.2

1.8 

9.9 

15 

2.1 

1.5

1.3 

1.1 

.9 

.8 

.7

Dec.

0.7 

.6 

.6 

2.8 

9.4

2.7 

1.8

1.4 

1.2

1.1 

1.0 

.9 

.9 

.8

.8 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.7

1.3 

2.2 

1.3 

1.0 

.8 

.7

Jan.

0.7 

2.6 

.6 

.6 

.6

.5 

.5

.5 

.5

.5 

.5 

.5 

.4 

.4

.4 

.4 

.4

.4 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Feb.

0.4 

.4 

.4 

.5

.5

.6 

.8

1.1 

1.3

2.5 

36 

3.9 

2.3 

1.9

1.7 

1.5 

1.3 

1.2

1.1

1.0 

l.O 

1.0 

.9 

.9

.9

1.0

1.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

aber. ...................................

lendar year 1946 

ary

h.. ....................................

st .....................................

eaber ..................................

ter year 1946-47 ......................

Mar.

3.1 

3.2 

2.0 

1.6 

1.4

1.3 

1.3

2.2 

2O

3.6 

2.9 

2.9 

2.8 

2.8

2.7 

2.5 

2.4 

2.0 

1.6

1.4 

3.7 

3.7 

2.0 

3.4

1.2 

1.1 

2.3 

3.8 

4.4 

2.7

Apr.

£££.

36.9 

70.3 

41.2

15,363.1

16.5 

67.9 

91.3 

34.1 

13.4 

24.6 

10.7 

"8.5 

9.9

425.3

2.0 

1.5 

1.6 

1.7 

1.8

2.3 

2.1

2.1 

1.9

1.7 

1.5 

1.3 

1.2 

1.0

.9

.7 

.7 

.7 

.7

.6 

.6 

.6 

.5 

.4

.4 

.4 

.4 

.4 

.4

May

0.4 

.4 

.7 

.6 

.4

.3 

.3

.3 

.3

.4 

.3 

.2 

.2 

.9

.4 

.4 

.3

1.0*

.5 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.4 

.3 

.6

June

1.4 

.6 

.5 

.3 

.4

1.2 

2.3

1.7 

.9

.7 

.6 

.6 

.5 

.4

.4 

.4 

.6 

.4 

.4

1.9 

.6 

.4 

.4 

.4

.4 

.4

.4

1.1 

1.4

Maxiau* mniau.

2.8 0.4 

19 .5 

9.4 .6

934 .2

2.6 .4 

36 .4 

20 1.1 

2.3 .4 

1.0 .2 

2.9 .3 

-.5 .3 

.3 .2 

.4 .2

36 .2

July

0.5 

.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

Aug.

0.3 

.3 

.3 

.3 

.3

.3 

.3

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.3 

.3 

.2

Sept.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.2 

.3

.4 

.4

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.4

 . Runoff in "ean acre-feet

1.19 73 

2.34 139 

1.33 82

42.1 30,480

.53 33 

2.42 135 

2.95 181 

1.14 68 

.43 27 

.82 49 

.35 21 

.27 17 

.33 20

1.17 845
360 FEATHER CREEK BASIN 

Bowman-Spaulding Canal at intake, Calif.

Location.- Water-stage recorder, lat. 39C 27', long. 1200 39', in sec. 8, T. 18 N., R. 12 E., 

it>u reet 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 1947. 

Average discharge.- 20 years, 145 second-feet.

Extremes.- Maximum daily discharge during year, 244 second-feet Nov. 26; no flow May 2. 

19BY-4Y: Maximum daily discharge, 262 second-feet AUK. 2-9, Sept. 29, Sept. 10-13, 1928; 

no flow at times during each year except 1943, 1944, 1945.

Remarks.- Records good above 50 second-feet and fair below. Canal diverts from left bank 

or 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 

Mevaaa irrigation District.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

3

4

6

7

8

10

11

14

15

16

17

19

21

24

26

28

Oct.

239

240

241

241

241

241

241

241

242

243

243

243

243

242

240

240

241

240

239

238

239

238

238

239

239

238

239

241

241

241

241

Nov.

241

242

242

241

240

24O

239

239

241

239

238

238

238

238

237

237

238

229

162

222

236

218

149

228

240

244

243

243

241

240

-

Dec.

239

239

239

24O

206

239

240

239

239

240

239

240

241

241

239

238

238

238

239

241

240

24O

237

236

236

238

239

238

236

239

240

Jan.

240

235

224

222

221

219

218

218

223

224

224

223

222

3222

222

222

222

221

221

218

170

102

76

76

76

 77

78

78

78

76

65

Feb.

65

65

66

66

67

67

66

66

66

80

94

42

56

153

197

218

206

205

222

233

232

232

231

230

229

228

227

227

_

-

-

Month

December . ........................ .........

Calendar year 1946 ......................

March. .....................................

April.. ....................................

May........................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

199

143

221

226

228

227

226

224

222

140

169

71

4.1

4.2

3.8

3.3

2.5

2.3

.2.0

1.7

1.5

3.5

. 21

1.8

1.3

1.2

1.2

2.6

8.6

41

5.8

Apr.

1.7

3.5

20

8.5

2.0

2.3

2.O

7.3

11

1.4

1.1

.9

.9

.9

l.O

1.0

1.1

1.2

1.4

1.7

2.0

2.0

2.3

2.3

2.3

2.3

2.4

2.5

2.3

2.O

-

Secondfoot-days

6,963

7,373

67,120.4

Q* -1

7 215

7 229

6,997

55,676.4

May

1.4

0

2.1

3.2

3.9

3.4

2.5

6.7

1.5

3.3

4.1

2.5

3.2

.9

2.3

5.6

3.7

2.0

2.8

4.5

4.6

4.5

4.6

4.5

4.6

4.6

4.6

5.0

5.0

4.4

4.6

Maximum

241

246

233

235

235

237

244

June

8.1

4.4

5.9

7.1

6.2

7.0

4.2

7.4

8.0

6.9

5.2

2.5

7.5

5.0

4.9

5.2

5.1

5.1

5.1

5.3

4.2

3.8

3.9

3.7

3.8

2.3

6.1

5.4

a5

a!30

-

Minimum

206

O

yz-i

226

0

July

229

232

232

231

232

232

232

232

232

232

233

234

233

232

232

233

233

233

234

235

235

235

235

234

235

233

232

231

232

232

233

Aug.

233

233

234

235

234

233

233

233

234

235

234

233

234

233

233

233

232

233

233

233

234

233

233

232

233

234

233

233

233

232

231

Mean

238

184

235

233

153

Sept.

232

232

233

232

231

230

232

236

236

234

233

232

234

229

226

228

233

234

234

234

234

234

234

236

234

234

236

237

237

236

-

Runoff in 

acre-feet

14,620

133,100

13,880

110.400

a No gage-height record; discharge computed on basis of trend of recorder graph, 

d Doubtful gage-height record} discharge Interpolated.
FEATHER RIVER BASIN 361

Deer Creek near Smartville, Calif.

Location.- Water-stage recorder, lat. 39°13'20", long. 121°16'00", in sec. 23, T. 16 N., 

R. 6 E., 1 mile upstream from mouth and 2 miles northeast of Smartville. Altitude 

of gage, about 500 feet (from topographic map).

Drainage area.- 83.5 square miles.

Records available.- June 1935 to September 1947

Average discharge.- 12 years, 159 second-feet.

Extremes.- Maximum discharge during year, 5,410 second-feet Feb. 12 (gage height, 9.88 

feet); minimum, 1.0 second-foot Aug. 17.

1&35-47: 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 regulated by Deer Creek Reservoir (capacity, 1,400 acrefeet). Diversions above station for power and irrigation. At times water from South 

Fork Yuba River is diverted into Deer Creek above station.

Rating tables, water year 1946-47 (gage height, In feet, and discharge, 

In second-feet)

Oct. 1 to Feb. 12 Feb. 13 to Sept. 30

1.3 4.6 2.0 46 4.5 580

1.4 7.0 2.4 91 5.0 790

1.5 10 2.8 146 5.5 1,050

1.6 14 3.2 218 6.0 1,380

1.7 20 3.6 310 7.0 2,240

1.8 28 4.0 415

1.2 1.2 1.7 12

1.3 2.0 1.8 18

1.4 3.2 2.0 38

1.5 5.2 2.3 75

1.6 8.0 2.6 117

Note.- Same as precedIng table above 2.6 feet.

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.

5.6

17

19

20

19

19

23

23

20

18

19

24

28

29

31

42

72

72

26

16

71

11

32

28

32

39

39

38

39

42

40

NOV.

42

40

41

26

37

42

42

41

36

45

46

46

50

52

52

53

46

26

701

300

107

207

701

164

112

95

87

84

80

69

-

Dec.

74

73

78

552

966

439

210

152

127

117

110

103

99

94

92

90

91

89

90

94

92

90

89

91

98

94

100

94

94

91

87

Jan.

87

84

80

83

79

35

23

20

19

19

19

20

20

20

19

19

19

19

19

18

24

23

20

19

19

20

21

35

40

46

46

Feb.

38

32

32

29

27

38

32

28

26

54

58

2,180

612

249

156

127

106

93

81

71

66

53

47

32

42

27

33

40

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April.............. ........................

May........................................

June. .......................................

July........... .............................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

48

182

863

403

193

130

113

182

352

1,630

479

288

208

162

134

116

103

89

82

74

66

70

93

96

99

88

86

446

411

497

262

Apr.

Secondfoot-days

953.6

3,470

4,760

38,940.9

1,034

4,409

8,045

3 347

493 7

534! 6

170.5

140.7

60.0

27,418.1

212

331

367

258

20B

191

169

190

210

130

95

83

70

56

54

39

54

62

76

75

67

56

45

37

34

32

35

38

41

34

-

May

30

26

23

19

18

18

18

17

16

16

13

14

14

14

14

13

11

11

10

14

16

6.7

2.0

12

13

12

15

22

22

22

22

Maximum

72

701

966

1,080

87

2,180

1,630

367

30

65

9.8

8.0

3.0

2,180

June

36

30

26

21

21

22

32

65

40

27

22

19

17

15

13

11

9.8

9.0

8.7

8.3

7.7

7.4

5.7

5.0

8,7

7.7

9.4

11

9.8

9.4

Minimum

5.6

26

73

2.1

18

26

48

32

2 ,C

s!c

3.C

1.4

1.4

1.4

July

8.7

8.3

9.0

9.8

8.3

6.8

6.8

6.5

5.9

4.2

4.2

5.2

5.9

6.2

5.0

4.4

4.6

3.4

4.8

4.4

4.0

5.0

6.8

6.5

4.4

3.0

3.0

3.2

3.6

4.2

4.4

Aug.

4.4

1.2

1.8

3.7

5.9

5.4

5.4

5.0

5.2

5.0

5.4

7.1

7.7

3.0

5.7

1.4

'

L.4

1.0

>.4

5.2

(

t

>.2

>.4

5.6

5.0

2.8

2.6

;

2

.6

.9

5.2

.9

3.2

Mean

30.8

116

154

107

33.4

157

260

112

15.9

17.8

5.50

4.54

2.00

75.1

Sept.

3.0

2.9

2.5

2.2

2.0

2.0

1.8

1.8

2.1

2.5

2.4

1.9

1.7

1.5

1.5

1.7

1.7

2.0

2.5

3.0

2.0

1.7

1.9

1.5

1.4

1.6

1.5

1.9

1.9

1.9

Runoff in 

acre-feet

1,890

6,880

9,440

77,240

?,050

8,750

15,960

6,640

979

1,060

338

279

119

54,380

Peak discharge.- Feb. 12 (3 p.m.) 5,410 sec.-ft.; Mar. 10 (8:30 a.m.) 2,680 sec.-ft.
362 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, 3.6 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 1947 in reports of Geological Survey, 

ly^a, lyiib-aa, 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, 3,700 second-feet Mar. 10 (gage height, 9.34 

feet, from peak indicator); minimum, 1.2 second-feet (regulated) June 22, 23.

1940-47: 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 (regulated) July 14, 1946.

Remarks.- Records good October to December and April to September, poor January to March. 

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.

Discharge, in seccnd-feet, water year October 1946 tc 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.

6.5

6.5

6.2

6.0

5.7

5.7

5.7

5.7

5.7

5.4

5.4

5.4

5.4

5.4

5.7

12

14

12

8.7

8.2

7.7

8.2

7.7

6.8

6.8

6.8

6.8

6.5

6.2

6.2

6.2

Nov.

6.2

6.0

5.7

5.7

5.7

5.4

5.4

5.4

5.4

5.4

5.1

5.1

5.1

5.1

5.1

5.1

4.6

5.1

22

17

17

18

29

28

27

27

26

26

26

272

-

Dec.

527

518

488

432

291

326

344

344

314

285

252

154

128

113

90

43

15

20

23

17

15

17

20

230

410

382

290

131

72

55

33

Jan.

16

10

7

6

6

6

6

6

6

6

6

6

87

15

10

6

6

6

6

6

6

6

6

 6

6

6

7

a

9

9

10

Feb.

9

8

8

10

78

679

324

163

226

120

110

100

350

300

120

80

80

80

80

200

200

-

_

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March... ...................................

April ......................................

May........................................

June .......................................

July

August .....................................

Septsmber. .................................

Water year 1946-47 ......................

Mar.

220

250

400

1,200

1,000

850

800

800

900

2,500

1,800

1,250

1,000

850

750

700

660

630

600

550

500

450

460

428

500

468

484

660

675

784

645

Apr.

701

630

701

590

563

428

436

558

581

540

488

442

259

297

428

444

448

412

295

161

191

496

432

440

363

288

138

211

222

4.2

Secondfoct-days

217.2

631 . 6

6,379

106,806.4

308

3,374

23,764

2^274!2

64.3

111.3

83. 1

116.3

49,510.1

May

17

17

39

251

308

264

278

262

259

162

63

51

94

92

39

23

17

3.4

3.4

4.5

3.0

2.9

2.3

2.2

2.2

2.1

2.3

2.3

2.3

2.6

2.7

Maximum

14

272

527

1,880

87

679

2,500 

701

308

3. 3

6.8

4.0

5.7

2,500

June

3.0

2.7

2.6

2.6

2.7

2.9

2.6

2.1

1.5

1.4

1.5

2.0

1.9

2.9

3.2

3.8

2.1

2.0

2.1

2.3

1.7

1.3

1.3

1.5

1.3

1.4

1.7

2.1

2.1

2.1

Minimum

5.4

4.6

15

.6

6

7

220

4.2

2.1

1.3

1.6

1.9

2.2

1.3

July

2.7

3.2

4.5

6.1

6.1

6.4

6.8

6.4

6.8

6.8

6.8

£.7

2.0

2.0

2.2

1.7

1.6

1.6

1.7

1.9

2.0

2.1

2.3

2.7

2.7

2.2

2.9

3.0

3.6

3.8

4.0

Aug.

4.0

3.8

1.9

2.1

2.3

2.7

2.9

3.0

1.9

2.0

2.2

2.3

1.9

2.1

2.3

2.0

2.2

2.3

2.7

2.9

3.0

3.2

3.6

4.0

3.2

2.2

2.6

2.7

2.9

3.0

3.2

Mean

7.01

21.1

206

293

9.94

120

767

406

73.4

2.14

2t 68

3.87

136

Sept.

3.6

3.2

2.7

2.9

2.9

2.9

3.0

3.0

2.2

2.2

3.3

3.8

4.2

4.2

4.2

4.2

4.2

4.0

4.0

4.0

4.0

4.0

4.2

5.7

5.1

5.1

5.1

5.7

5.4

4.2

Runoff in 

acre-feet

431

1,250

12,650

311,800

611

6,690

47,140

24,170

4,510

221

165

230

98 , 200

Note.- No gage-height record Jan. 3-12, Jan. 14 to Feb. 11, Feb. 17 to Mar. 22; discharge computed 

on basis of 2 discharge measurements, recorded range in stage, and records for Oregon Creek near 

North San Juan.
FEATHER RIVER BASIN 

ear River near Wheatland, Calif.

363

Location.- Water-stage recorder, lat. 39°00', long. 121°25', in sec. 3, T. 13 N., R. 5 

JS., 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 1947.

Average discharge.- 18 years (1929-47), 426 second-feet.

Extremes.- Maximum discharge during year, 6,900 second-feet Feb. 12 (gage height, 11.00 

reetj; minimum, 0.2 second-foot (regulated) Sept. 8, 9, 16, 17.

1928-47: 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 contractedopening method and other data; no flow May 8, Sept. 18-25, 1939.

Remarks.- Records good except those for June to September, which are fair. Flow regulated 

Dy reservoirs and power plants above station. River receives inflow from Yuba River 

Basin and there are diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

7,

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

??

23

24

25

26fn

28

?9

30

31

Oct.

53

68

56

49

32

28

26

25

28

28

26

25

20

16

16

35

53

52

48

48

49

48

51

48

47

44

45

47

48

49

48

Nov.

48

48

49

48

48

49

48

51

50

48

48

47

48

51

53

52

52

54

433

579

147

117

458

195

125

104

95

89

87

128

-

Dec.

573

568

568

688

880

808

595

514

457

412

370

293

217

200

181

121

83

81

84

84

76

76

77

128

499

478

437

338

159

138

121

Jan.

95

78

65

57

57

57

60

60

60

64

65

64

90

140

71

57

57

56

57

58

57

56

54

54

54

55

59

68

92

86

106

Feb.

95

84

80

76

73

70

68

66

65

80

77

2,800

1,430

862

536

483

536

541

541

525

499

452

303

242

167

26

26

26

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April.. ....................................

May

September . .................................

Water year 1946-47 ......................

Mar.

144

552

1,100

1,590

1,070

898

832

862

927

4,640

2,550

1,470

1,180

994

908

830

794

778

728

712

662

590

625

540

595

610

570

917

1,240

1,460

956

Apr.

866

800

980

824

728

635

490

610

668

315

565

545

397

290

45

78

413

437

369

240

157

297

445

389

413

361

233

138

314

101

-

Secondfoot-days

3 449

10,304

135,095.6

38.3

76,093.1

May

55

45

25

50

226

270

240

256

236

208

104

55

46

66

55

28

16

11

10

8.3

5.3

6.3

6.3

5.0

3.3

1.2

1.2

1.9

1.7

1.7

2.0

Maximum

68

880

3,220

4.2

4,640

June

3.3

4.2

3.3

2.8

1.9

2.0

4.2

8.6

29

20

15

10

5.4

2.0

2.2

4.4

4.4

4.2

2.8

1.7

2.5

2.0

1.2

1.2

1,2

1.5

2.0

6.8

3.9

1.9

-

Minimum

16

76

1.0

2

.2

July

0.7

2.0

1.5

1.7

1.5

1.5

1.9

2.2

2.0

2.5

2.8

3.6

3.9

3.9

4.4

4.7

5.0

3.6

3.6

3.3

4.2

3.9

3.3

3.3

2.8

2.5

2.8

3.3

4.4

3.9

3.0

Aug.

3.6

3.0

2.8

2.8

2.2

1.9

1.7

1.5

1.4

1.2

1.0

.8

.8

.7

.7

.5

.4

.4

.4

1.4

1.2

1.0

.8

.7

.5

.4

3.0

3.0

1.9

1.9

1.7

Mean

40.5

332

370

3.02

1.28

208

Sept.

1.4

1.9

3.3

2.5

.8

.5

.3

.2

.2

.3

.4

.4

.7

.5

.4

.2

.2

.4

.7

1.2

1.0

.8

.8

1.0

1.2

1.7

3.0

3.9

4.2

4.2

-

Runoff in 

acre feet

2,490

20,440

268,000

4,180

21,480

26,660

186

76

150,900

Peak discharge.- Feb. 12 (5:30 p.m.) 6,900 sec. -ft.; Mar. 3 (10:30 p.m.) 2,260 sec. -ft.; Mar. 10

(12:45 p.m.) 6761O sec.-ft.; Mar. 30 (6 a.m.) 1,700 sec.-ft.
364 FEATHER RIVER BASIN 

Bear River Canal near Coifax, Calif.

Location.- Water-stage recorder, lat. 39°08', long. 120°57', in SE£ sec. 22, T. 15 N., 

K. y 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). Prior to 

Mar. 25, 1946, at site 1.5 miles downstream.

Records available.- January 1912 to September 1947. 

Average discharge.- 33 years (1914-47), 248 second-feet.

Extremes.- Maximum daily discharge during year, 480 second-feet Oct. 16; no flow Mar. 16 

to-Apr. 17.

1912-47: 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. 16 N., R. 9 E. Water 

is rirst used to develop power at Halsey and Wise powerhouses; part of it is then 

distributed for irrigation and part is eventually spilled into North Pork American 

River.

Cooperation.- Records of daily discharge furnished by Pacific Gas & Electric Co.

Discharge, in second-feet, water year October 1946 to Ssptember 1947

Day

1

?.

7,

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.

442

427

434

456

439

465

470

463

464

457

467

472

479

470

480

463

435

390

409

407

427

445

421

377

397

399

392

382

409

405

409

Nov.

429

417

406

417

403

317

320

328

207

202

237

341

336

341

317

189

190

340

331

372

369

369

404

327

379

358

343

230

338

339

-

Dec.

214

341

331

399

409

409

433

365

456

409

409

396

462

453

46O

447

449

468

468

457

449

447

465

449

432

450

458

404

352

392

447

Jan.

420

429

415

412

396

381

419

422

419

416

409

414

398

324

339

323

333

320

288

332

333

318

314

312

239

198

311

331

341

383

350

Feb.

160

150

291

348

369

361

355

342

264

360

375

317

317

420

421

396

399

366

369

345

355

208

192

255

287

345

345

308

_

-

Month

December. ...................................

Calendar year 1946 ......................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

221

295

206

204

210

204

205

202

202

131

2

2

2

2

2

0

0

O

0

O

0

0

0

0

O

0

0

0

0

o

0

Apr.

0

o

0

0

o

0

0

0

0

0

0

o

0

0

o

0

0

64

124

129

128

133

131

132

128

125

125

174

243

303

-

Seoond- 

' foot-days

13,452

9,896

12,980

111,381

11,019

9,020

2,090

1,939

10,311

11,986

12,420

10,052

115,509

May

304

296

306

305

307

304

308

306

304

304

308

309

317

338

341

352

356

351

367

381

387

381

379

360

345

346

384

360

341

293

271

Maximum

480

429

468

489

429

421

295

303

387

458

464

453

480

June

316

350

336

310

326

334

365

276

258

361

323

303

273

265

350

399

421

394

404

365

331

331

369

399

407

380

367

360

335

336

-

Minimum

377

189

214

O

198

150

0

0

271

279

309

212

0

July

390

399

325

279

358

412

375

348

338

362

366

35,4

351

351

381

374

423

409

393

345

409

405

429

449

458

416

363

424

439

427

434

Aug.

439

391

397

437

464

440

435

424

409

339

400

444

426

425

432

461

341

400

425

398

374

364

358

343

357

403

399

404

418

364

309

Mean

434

330

419

305

355

322

67.4

64.6

333

345

387

335

316

Sept.

379

453

413

416

410

343

237

291

376

369

371

437

405

315

389

395

313

323

289

248

212

331

307

337

270

264

299

260

300

300

-

Runoff in 

ao re feet

26,680

19,630

25,750

221,000

21,860

17,890

4,150

3,850

20,450

20,520

23,770

24,630

19,940

229,100
AMERICAN RIVER BASIN 

North Pork American River at North Pork Dam, Calif.

365

Location.- Water-stage recorder above spillway of North Fork Dam, lat. 38°56', long. 

12I"U1', in SE£ sec. 30, T. 13 N., R. 9 E., 2 mil ' ' ------

miles northeast of Auburn. 

by Corps of Engineers).

miles upstream from Middle Fork and 4 

Datum of gage is 715.0 feet above mean sea level (levels

Drainage area.- 343 square miles.

Records available.- October 1941 to September 1947.

Extremes . - Maximum discharge during year, 9,480 second-feet Feb. 12 (gage height, 4.82 

reet ) ; minimum, 24 second-feet Sept. 15-19, 26-30.

1941-47: 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 computed flow 

over spillway of dam by Creager's method; no flow Aug. 27-30, Sept. 2-11, 1944 (result 

of regulation) .

Remarks.- Records excellent. Some storage and a few diversions above station.

Rating table, water year 1946-47 (gage height, in feet,

and discharge, in second-feet) 

(Backwater corrections applied Oct. 1-15, May 16 to Sept. 3)

O.lO 15 0.30 75 0.9 460 2.5 2,280

.15 26 .4 120 1.

.20 40 .5 176 1.

5 840 3.0 3,080

7 1,270 3.4 4,040

.25 56 .7 310 2.1 1,740 3.8 5,28O

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.

46

53

60

60

56

53

50

50

46

46

46

46

46

43

46

67

60

56

53

53

53

56

67

71

60

53

50

50

50

50

50

Nov.

50

50

46

46

46

50

50

46

46

46

46

46

46

50

53

53

53

67

1,120

1,530

388

268

2,720

1,070

505

352

289

254

227

207

-

Dec.

188

176

164

275

641

1,360

770

550

436

366

324

296

275

254

240

227

207

194

182

176

176

176

176

182

207

261

310

359

282

261

220

Jan. 

207

201

182

176

176

170

164

164

153

153

153

153

159

147

141

136

141

136

136

136

141

141

136

136

136

147

170

227

207

207

240

Feb.

227

220

227

233

247

254 275'

275

275

404

380

4,540

4,380

1,930

1,310

1,060

890

750

660

604

559

514

487

478

469

460

452

444

-

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May........................................

June .......................................

July .......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

420

870

1,060

1,240

940

780

700

710

710

3,450

2,640

1,720

1,370

1,240

1,160

1,140

1,140

1,130

1,100

1,040

951

910

1,270

984

820

750

730

890

1,170

1,690

1,380

Apr.

1

1

1

1

1

1

1

1

1

1

1

1

Secondfoot-days

1,646

9,820

9,911

242,061

5,072

23 004

36)l05

30,835

21,009

8 159

1 947

l)o29

816

149,353

,220

060

,130

060

984

962

951

910

940

910

930

940

995

140

260

280

380

200

150

230

230

973

850

840

840

850

910

890

880

940

-

May

1,080

1,370

1,430

1,360

1,230

1,200

1,120

920

770

680

622

604

577

559

559

577

586

568

541

541

523

487

460

412

380

338

317

317

289

282

310

Maximum

71

2,720

1,360

2,720

240

4 540

3 450

1 ' "^fiCt

l)430

640

92

43

29

4,540

June

558

559

396

331

296

338

452

640

631

444

345

296

261

240

220

207

194

194

176

170

153

141

130

120

120

115

115

110

106

101

-

Minimum

43

46

164

43

136

220

420

840

282

lol

43

26

26

26

July

92

88

88

83

79

79

75

75

71

67

67

67

67

63

63

60

60

56

56

53

53

50

50

50

50

50

50

50

46

46

43

Aug.

43

43

43

43

40

40

40

37

37

37

37

37

37

37

32

32

29

29

29

29

29

26

29

26

26

26

26

26

26

29

29

Sept.

29

26

29

29

26

29

29

29

29

29

29

->29

29

26

26

26

26

26

26

29

26

26

26

26

26

26

26

26

26

26

-

Mean Runoff in Maan acre-feet

53.1 3,260

327 19,480

320 19,660

663 480,100

164 10,060

822 45 j 630

1,165 71,610

1,028 61,160

678 41,670

t 272 16,180

33)2 2)040

27.2 1,620

409 296,200

Peak discharge.- Feb. 12 (8 p.m.) 9,480 sec.-ft.; Mar. 10 (3 p.m.) 5,040 sec.-ft.
366 AMERICAN RIVER BASIN

North Fork American River at Rattlesnake Bridge, Calif.

Location.- Water-stage recorder, lat. 38°49', long. 121°06', in SW^ sec. 9, T. 11 N., R.

 BE., 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 (river-proflie survey). 

Drainage area.- 999 square miles.

Hecoras available.- November 1930 to September 1937, December 1938 to September 1947. 

Average qiscnargeT- 14 years (1931-37, 1939-47), 2,338 second-feet. 

.Extremes._- Maximum discharge during year, 20,100 second-feet Feb. 12 (gage height, 10.8

reet); minimum, 20 second-feet (regulated) Sept. 7, 14.

1930-47: Maximum discharge, 95,000 second-feet Jan. 21, 1943 (gage height, 26.5

feet), from rating curve extended above 27,000 second-feet; minimum, 6.6 second-feet

(regulated) Aug. 15, 1931. 

Remarks.- Records good except those for period of no gage-height record, which are fair.

 i'low slightly regulated by small reservoirs above station; low flow greatly affected 

by diversions into North Fork ditch and inflow from Bear and Yuba River Basins through 

South Canal of Pacific Gas & Electric Co.

Rating table, water year 1946-47 (gage height, 

in feet, and discharge, In second-feet)

Oct. 1 to Feb. 12 Feb. 13 to Sept. 30

0.4 215 2.5 1,760 -0.6 16 0. 

.6 290 3.0 2,380 -.5 22 

.9 430 3.5 3,060 -.3 43 1. 

1.2 610 4.2 4,160 -.2 55 1. 

1.5 825 5.0 5,570 -.1 70 1, 

1.8 1,060 6.0 7,460 0.0 88 2. 

2.1 1,340 6.8 9,060 .2 133 2.

Discharge, in second-feet, water year October 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

Dot.

238 

276 

395 

463 

441

339 

415 

415 

415 

410

370 

400 

400 

395 

400

441 

430 

425 

415 

410

415 

425 

420 

436 

467

436

452 

379 

446 

441 

409

Nov.

441 

441 

441 

441 

441

322 

340 

384 

304 

288

253 

303 

390 

349 

388

327 

240 

351 

a2,700 

aS,800

al,600 

al,200 

a8,6OO 

34,500 

32,000

31,400 

31,250 

31,100 

31,000 

3900

Dec.

3850 

3800 

3900

31,100

31,950

34,500 

32,650 

31,980 

1,670 

1,490

1,320 

1,220 

1,160 

1,110 

1,050

1,030 

988 

964 

916 

908

862 

840 

832 

855 

932

1,140 

1,210 

1,340 

1,120 

972 

1,010

Jan.

956 

964 

900 

862 

870

862 

848 

832 

818 

802

795 

795 

825 

729 

715

652 

659 

645 

624 

666

701 

701 

701 

666 

590

590 

694 

940 

980 

'SOO 

1,020

Feb.

780 

673 

832 

956 

1,010

1,060 

.1,050 

1,010 

1,070 

1,340

1,490 

8,970 

13,100 

5,780 

3,940

2,960 

2,500 

2,080 

1,830 

1,690

1,540 

1,400 

1,300 

1,310 

1,340

1,330 

1,330 

1,330

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber.. .................................

lendar year 1946 

ary

1. .....................................

ember . .................................

ter year 1946-47 ......................

Mar.

1,190 

2,360 

2,880 

3,140 

2,460

2,050 

1,840 

1,850 

1,910 

8,140

7,080 

4,480 

3,630 

3,260 

3,100

3,050 

3,160 

3,170 

3,060 

2,910

2,740 

2,620 

3,470 

2,910 

2,360

2,150 

2,090 

2,490 

3,460 

4,650 

4,000

Apr.

3,470 

3,080 

3,350 

3,100 

2,770

2,710 

2,740 

2,680 

2,810 

2,710

2,740 

2,820 

2,950 

3,360 

3,710

3,810 

4,110 

3,580 

3,360 

3,600

3,620 

2,890 

2,420 

2,380 

2,460

2,490 

2,680 

2,680 

2,590 

2,790

Secondfoot-days

12,619 

38,494 

39,669

761,405

24,302 

65,001 

97,660 

90,460 

68,728 

26,175 

4,719 

2,644 

1,721

472,192

Peak discharge.- Nov. 23, 16,400 sec. -ft. j Feb. 12 (11

4 191 3.3 2,580 

7 300 4.0 3,600 

0 440 5.0 5,320 

3 605 6.4 8,160 

7 880 7.5 10,600 

2 1,300 8.6 13,300 

7 1,830

to September 1947

May

3,220 

4,190 

4,530 

4,360 

3,900

3,840 

3,630 

2,910 

2,450 

2,110

1,890 

1,790 

1,730 

1,690 

1,790

1,930 

2,020 

1,960 

1,910 

1,930

1,890 

1,820 

1,710 

1,540 

1,490

1,300 

1,170 

1,120 

948 

940 

1,020

Maximum

467 

8,600 

4,500

8,640

1,020 

13,100 

8,140 

4,110 

4,530 

2,020 

272 

136 

106

13,100

June

1,630 

2,010 

1,380 

1,110 

971

1,040 

1,400 

1,870 

2,020 

1,410

1,120

971 

828 

756 

702

670 

650 

650 

581 

557

545 

480 

425 

405 

390

358 

340 

318 

304 

284

Minimum

238 

240 

800

114

590 

673 

1,190 

2,380 

940 

284 

83 

47 

21

21

July

272 

239 

225 

215 

198

194 

182 

176 

166 

157

152 

149 

141 

136 

128

123 

172 

149 

126 

106

134 

133 

100 

136 

137

86 

83 

119 

149 

121 

115

Aug.

125 

75 

75 

127 

129

136 

121 

113 

68 

55

86 

100 

102 

106 

105

101 

93 

98 

96 

47

47 

48 

49 

70 

60

57 

55 

84 

82 

76 

58

Sept.

56 

87 

74 

66 

82

66 

21 

32 

30 

25

36 

49 

96 

88 

42

106 

86 

28 

47 

34

26 

34 

52 

60 

96

46 

64 

58 

86 

48

Mean Rnnof| i? 3au acre-feet

407 25,030 

1,283 76,350 

1,280 78,680

2,086 1,510,000

784 48,200 

2,321 128,900 

3,150 193,700 

3,015 179,400 

2,217 136,300 

872 51,920 

152 9,360 

85.3 5,240 

57.4 3,410

1,294 936,500

p.m.) 20,100 sec. -ft.; Mar. 10 (5 p.m.)

12,000 sec.-ft7

3 No gsge-helght record; discharge computed on basis of radio gage readings, pesk marks, records 

for North Fork American River at North Fork Dam, Middle Fork American River near Auburn, snd unpublished records of spill into river from South Canal.
AMERICAN RIVER BASIN 367

American River at Pair Oaks, Calif.

Location.- Water-stage recorder, lat. 38°38'15", long. 121°15'55", just upstream from 

nignway bridge at Fair Oaks, Sacramento County, and 10 miles downstream from South 

Fork. Altitude of gage, about 7S feet (from topographic map). 

Drainage area.- 1,921 square miles.

Records available.- November 1904 to September 1947 (at several sites near highway bridge).

Average discharge.- 42 years (1905-47), 3,697 second-feet.

Extremes.- Maximum discharge during year, 27,900 second-feet Feb. 13 (gage height, 12.60 

feet); minimum, 81 second-feet (regulated) Aug. 18.

1904-47; 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, present datum (discharge probably about 

same as that of Mar. 25, 1928); minimum, 3.6 second-feet (regulated) 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.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

Z

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

367

428

675

744

657

470

558

519

530

552

498

519

502

498

485

524

708

675

589

555

558

571

619

545

680

632

575

488

524

530

505

Nov.

549

565

558

549

533

474

430

459

388

355

347

362

412

437

391

416

355

357

1,100

9,730

3,240

1,970

7,860

6,70O

3,210

2,140

1,850

1,570

1,440

1,400

-

Dec.

1,310

1,170

1.19O

1,310

2,060

4,800

4,080.

2,700

2,110

1,930

1,710

1,570

1,490

1,500.

1,350

1,300

1,250

1,200

1,150

1,150

1,150

1,100

1,100

1,100

1,250

1,450

1,700

2,000

1,750

1,500

1,450

Jan.

1,350

1,300

1,250

1,150

1,100

1,180

1,170

1,100

1,050

1,050

1,050

1,050

1,070

1,020

1,020

963

898

925

907

925

963

954

925

916

880

835

916

1,120

1,300

1,090

1,290

Feb.

1,080

972

1,040

1,160

1,220

1,270

1,290

1,280

1,340

1,510

1,870

8,860

20,100

8,270

5,570

4,260

3,560

2,960

2,580

2,360

2,160

1,950

1,830

1,790

1,830

1,830

1,820

1,870

.

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

llaroh. .....................................

April ......................................

May........................................

June .......................................

July....... ................................

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

1,680

2,660

4,100

5,040

3,370

3.O30

2,670

2,640

2,700

12,100

12,400

7,430

5,800

5,080

4,690

,560

,680

,740

,580

,320

,140

,000

,770

,710

3,670

3,310

3,170

3,730

5,250

6,880

6,340

Apr.

5,290

4,710

5,630

5,570

4,600

4,320

4,310

4,140

4,420

4,280

4,180

4,310

4,500

5,210

5,780

5,940

6,300

5,820

5,300

5,660

5,780

4,800

3,940

3,740

3,880

3,900

4,180

4,290

4,180

4,440

-

Secondfoot-days

17,280

50,147

51,780

1,189,620

. 32,717

87,632

148,600

143,400

122,020

43,545

8,440

5,541

4,457

715,560

Peak discharge.- Nov. 20 (5:30 a.m.) 13,900 sec. -ft.;

Bay

5,200

6,880

7,900

7,670

7,180

6,920

6,500

5,340

4,470

3,850

3,490

3,180

3,040

2,930

3,070

3,340

3,550

3,550

3,510

3,480

3,380

3,300

3,110

2,820

2,590

2,330

2,130

1,990

1,830

1,720

1,770

Maximum

744

9,730

4,800

13,300

1,350

20,100

12,400

6,300

7,900

3,480

425

219

203

20,100

Nov. 23 (6

June

2,290

3,480

2,440

2,020

1,750

1,660

1,880

2,960

3,090

2,410

1,920

1,660

1,470

1,320

1,290

1,190

1,160

1,110

1,100

952

934

872

781

650

592

598

537

514

486

430

-

Minimum

36"

34"

1.10C

22£

83E

972

1,680

3.74C

1.72C

43C

196

14]

9£

9£

July

425

398

362

341

321

309

301

282

267

282

274

271

256

256

246

242

239

286

282

246

232

249

249

196

253

249

206

203

229

263

225

Aug.

219

212

184

178

216

212

212

20O

203

172

163

166

190

193

190

169

206

152

212

169

141

146

146

141

166

146

155

160

175

181

166

Mean

557

1,672

1,670

3,259

3,130

4,794

4,780

3,936

1,452

272

179

149

1,960

Sept.

160

146

166

152

152

152

144

121

98

116

107

119

131

196

138

128

181

166

126

144

138

136

126

166

203

200

155

175

155

160

-

Runoff in 

acre- feet

34,270

99,470

102,700

2^60,000

64,890

173,800

294,700

284,400

242,000

86,370

16,740

10,990

8,840

1,419,000

p.m.) 17,700 sec. -ft.; Feb. 13

(2:30 a.m.) 27790O sec.-ft.; Mar. 10 (7:30 p.m.) 16,50o sec.-ft.

Note.- No gage-height record Dec. 17 to Jan. 5; discharge computed on basis of records for station at Sacramento.
368 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

Decemoer 194H (low-water periods only); May 1943 to September 1947.

Extremes.- Maximum discharge during year, 24,600 second-feet Feb. 13 (gage height, 30.1 

 feet, based on partially estimated graph), from rating curve extended above 12,000

second-feet by logarithmic plotting; minimum observed, 74 second-feet (regulated)

Sept. 10 (gage height, 18.14 feet).

1921, 1929-32, 1934-47: Maximum discharge unknown; minimum discharge recorded,

21 second-feet Aug. 14, 1931. 

Remarks.- Records good. Plow regulated by reservoirs and power plants above station.

Many diversions above station for irrigation. Some inflow from Bear and Yuba River

Basins. 

Cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Rating tables, vater year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Oct. 1 to Nov. 19)

Oct. 1 to Mar. 10 Mar. 11 to Sept. 30

18.7 390 20.0 1,770 24.0 8,930

18.9 560 21.0 3,180 25.0 11,100

19.2 830 22.0 4,860 26.0 13,400

19.6 1,270 23.0 6,780

18.2 97 19.3 940 23.0 7,320

18.4 196 20.0 1,800 2

18.6 313 21.0 3,340 2

4.0 9,550

5.0 11,900

18.9 545 22.0 5,240 26.0 14,300

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.

438

414

632

722

740

632

614

641

650

641

614

605

614

605

614

605

713

740

686

659

659

668

677

632

704

695

659

623

596

632

614

Nov.

632

677

S86

668

668

650

533

587

533

479

398

414

497

560

488

524

430

386

677

a8, 470

3,500

1,990

a4,910

a8,160

as, 530

a2,230

al,860

al,600

al,550

al,470

-

Dec.

al,390

al,220

1,260

1,380

2,040

4,400

4,160

2,860

2,310

2,130

1,940

1,770

1,670

1,550

1,510

1,440

1,390

1,350

1,290

1,270

1,250

1,200

1,190

1,170

1,310

1,520

1,720

2,060

1,820

1,550

1,510

Jan.

1,440

1,410

1,350

1,220

1,150

1,260

1,270

1,190

1,120

1,120

1,080

1,110

1,120

1,080

1,040

1,040

930

1,010

1,010

996

1,040

1,070

1,050

1,040

985

910

985

1,260

1,490

1,26*0

1,460

Feb.

1,330

1,140

1,100

1,310

1,380

1,430

1,450

1,460

1,490

1,560

2,000

a4,500

a20,000

310,200

7,280

5,540

3,790

3,020

2,640

2,440

2,260

2,080

1,960

1,900

1,960

1,960

1,950

1,980

_

.

-

Month

October. ...................................

November . ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ...................................

March. .....................................

April ......................................

Bay. .......................................

June .......................................

July........ ...............................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

1,890

2,220

3,920

4,910

3,770

3,060

2,730

2,640

2,700

8,400

13,700

8,250

6,290

5,260

4,720

4,490

4,530

4,640

4,580

4,260

4,110

3,940

4,510

4,900

3,740

3,320

3,120

3,560

5,100

6,540

6,690

Apr.

5

4

5

5

4

4

4

4

4

4

4

4

4

5

5,

6,

6

6,

5,

5

420

860

440

910

720

340

320

160

410

300

160

320

450

120

830

020

440

080

460

640

5,910

5,

4,

3,

120

090

770

3,920

3,920

4,

4,

4,

4,

Secondfoe t-days

19,738

49,737

54,630

1,216,933

35,496

91,110

146,490

145,150

122 150

43^064

8y 661

5 191

4^282

725,699

150

320

160

390

May

5,100

6,710

7,780

7,760

7,280

6,960

6,710

5,600

4,600

3,920

3,450

3,140

3,000

2,900

2,970

3,240

3,430

3,500

3,480

3,430

3,310

3,260

3,140

2,860

2,650

2,440

2,210

2,000

1,860

1,720

1,740

Maximum

740

8,470

4,400

13,600

1,490

20,000

13,700

6,440

7 t 7AT) /WJ

3,340

437

213

224

20,000

June

2,150

3,340

2,520

2,110

1,770

1,620

1,840

2,710

3,050

2,490

1,950

1,600

1,440

1,290

1,240

1,140

1,120

1,070

1,060

952

930

888

814

673

626

626

563

511

494

477

Minimum

414

366

1,170

224

910

1,100

1,890

3,770

1,720

477

180

140

100

100

July

437

429

383

376

348

327

327

320

276

295

307

282

276

276

258

252

246

282

276

246

213

224

246

213

218

235

207

180

207

258

241

Aug.

196

2

1

1

13

70

54

180

196

1

1

1

91

86

86

160

149

1

1

1

49

80

75

175

170

1

1

1

75

75

96

175

al60

al

al

al

40

40

40

a!40

alSO

al

al

al

1

50

50

50

60

160

Mean

637

1* 658

1,762

3,334

1,145

3 254

4 725

4>838

3 940

1^435

279

167

143

1,988

Sept.

144

149

a!40

144

149

149

149

a!40

a!30

alOO

allO

alOO

allo

a!40

175

a!30

a!40

175

a!30

a!30

a!30

a!20

a!20

al30

196

224

160

154

160

154

Runoff in 

acre-feet

39 150

98,650

108,400

2,414,000

70,410

180,700

290 , 600

287,900

242,300

85,420

17,180

10,300

8,490

1,439,000

a No gage-height record,- discharge computed on basis of records for station at Pair oaks.
AMERICAN RIVER BASIN 369

Middle Fork 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 1947. October 1911 to December 1930 at 

site hair a mile downstream.

Average discharge.- 36 years, 1,363 second-feet.

Extremes.- Maximum discharge during year, 11,600 second-feet Feb. 12 (gage height, 14.15 

feet); minimum, 40 second-feet Sept. 15-17, 24, 25.

1911-47: 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.

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.

71

93

157

162

152

129

106

108

103

98

93

91

87

85

83

97

99

92

88

88

90

89

97

108

137

117

104

98

94

92

91

Nov.

91

89

88

86

86

85

85

84

83

83

83

84

84

88

94

94

92

99

1,520

3,270

860

570

4,970

2,200

1,100

760

652

576

508

466

-

Dec.

429

396

371

500

944

2,470

1,410

980

784

680

604

556

514

476

446 '

422

396

364

334

340

328

320

311

320

396

560

604

684

528

483

422

Jan.

400

400

343

317

334

322

311

292

280

272

269

267

289

272

259

220

251

236

236

236

233

228

225

228

230

251

322

436

371

387

416

Feb.

380

364

380

393

419

425

463

494

508

720

700

5,100

7,320

3,170

2,200

1,780

1,510

1,280

1,140

1,040

960

858

814

804

827

327

840

840

_

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April.. ....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

778

1,730

1,870

1,750

1,390

1,180

1,090

1,100

1,120

4,740

3,890

2,670

2,180

2,000

1,960

1.97O

2,040

2,070

1,980

1,890

1,780

1,750

2,320

1,890

1,540

1,380

1,380

1,730

2,230

3,010

2,500

Apr.

2,200

2,010

2,170

1,980

1,SOO

1,780

1,810

1,760

1,840

1,770

1,820

1,900

1,990

2,280

2,510

2,560

2,760

2,390

2,300

2,510

2,490

1,950

1,630

1,650

1,710

1,740

1,890

1,870

1,820

1,980

-

Seccnd 

foct-days

3,199

19,030

18,372

463,716

9,133

36,556

60,908

60,870

49,444

18, 138

3,714

1,807

1,306

282,477

May

2,310

2,960

3,200

3,060

2,780

2,710

2,620

2,080

1,690

1,470

1,320

1,260

1,210

1,200

1,290

1,420

1,490

1,450

1,430

1,450

1,430

1,390

1,290

1,160

1,O60

930

827

796

694

694

773

Maximum

162

4,970

2,470

6,020

436

7,320

4,740

2,760

3,200

1,390

191

75

51

7,320

June

1,320

1,390

960

764

674

710

1,030

1,260

1,360

881

724

634

558

530

503

468

458

426

403

399

386.

' 337

293

270

259

250

237

229

219

207

-

Minimum

71

83

311

68

220

364

778

1,630

694

207

76

50

40

40

July

191

182

174

166

162

158

153

147

142

138

132

129

126

122

116

114

112

108

105

99

96

93

90

88

87

85

83

82

81

77

76

Aug.

75

71

72

71

69

67

64

63

61

61

61

61

60

59

57

56

55

54

53

51

51

52

53

53

53

52

51

50

50

50

51

Mean

103

634

593

1,270

295

1,306

1,965

2,029

1,595

605

120

58.3

43.5

774

Sept.

51

48

46

44

43

42

42

42

42

43

44

44

44

43

41

40

41

42

43

45

45

44

43

41

40

'43

. 44

46

46

44

Runoff in 

acre-feet

6,350

37,750

36,440

919,700

18) 12O

72,510

120,800

12O, 700

98,070

35,980

7,370

3,580

2,590

560, 300

Peak discharge.- Nov. 19 (12 p.m.) 6.O80 sec. -ft.! Nov. 23 (11 a.m.) 9,600 sec. -ft.; Feb. 12

(12 p.m.) 11,600 seo.-ft.j Mar. lo (3 p.m.) 6,620 sec.-ft.
370 AMERICAN RIVER BASIN

Rubicon River near Georgetown, Calif.

Location.- Water-stage recorder, lat. 38°58', long. 120°29', in SE£ sec. 23, T. 13 N., 

RTT3~E., 1 mile downstream from Little South Pork 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 1947. November 1909 to June 1914 (published 

~as KUDlcon Klver near Quintette).

Extremes.- Maximum discharge during year, 4,330 second-feet Nov. 23 (gage height, 9.66 

reet), from rating curve extended above 2,100 second-feet by logarithmic plotting; 

minimum, 6.6 second-feet Sept. 21, 22.

1943-47: Maximum discharge, 9,620 second-feet Feb. 2, 1945 (gage height, 13.25 

feet), 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. Plow 

regulated by Loon Lake (capacity, 11,000 acre-feet) on Gerle Creek, where most of 

stored water is diverted out of watershed in Georgetown ditch (see following page).

Rating table, water-year 1946-47, except period of Ice effect 

(gage height, In feet, and discharge, In seoond-feet)

1.1 5.5 1.9 33

1.2 7.6 2.2 52

1.3 10 2.6 84

1.4 13 3.0 128

1.5 16 3.5 206

1.7 24 4.0 308

4.5 438

5.0 610

6.0 1,080

7.5 2,160

8.5 3,060

Discharge, in second- feet, wster yesr October 1946 tc 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.

39

81

77

75

55

40

34

30

31

29

24

21

19

18

16

19

19

20

24

21

20

20

50

66

. 42

33

28

24

23

22

20

Nov.

19

18

16

15

14

14

14

14

14

14

16

16

16

19

20

20

21

30

1,420

675

258

255

2,630

702

382

299

271

234

211

190

-

Dec.

173

158

148

258

735

680

377

288

244

211

195

183

166

157

148

141

131

117

123

117

116

115

115

126

242

246

286

211

190

157

145

Jan.

152

121

113

121

115

114

107

103

102

102

98

98

98

, 98

b80

b94

b92

b90

b90

b90

b90

b90

b92

b94

blOO

bllO

110

118

131

134

123

Feb.

117

127

140

151

154

173

195

201

211

258

228

2,430

1,600

788

582

510

432

377

349

334

306

295

299

334

351

364

390

332

_

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

365

904

594

471

404

364

351

349

372

1,080

748

556

517

538

622

694

784

798

730

734

718

769

1,080

694

582

541

618

865

930

1,100

840

Apr.

1

1

1

1

1

1

1

1

1

1

1

1,

1,

Secondfoot-days

1,040

7,837

6,699

201,676

3,270

1£;0£8

20,712 

28, 818

32 955

10^901

1, 36 

413.6

240.6

126,280.2

780

666

638

570

556

606

610

606

630

614

739

811

995

220

350

470

500

250

280

480

300

900

802

885

950

010

120

070

090

320

May

1,750

2,160

2,210

2,030

1,910

1,860

1,620

1,220

990

875

798

788

770

793

895

985

l.OOO

975

980

980

970

935

860

775

706

630

527

459

441

481

582

June

1,040

734

559

441

413

444

864

860

682

497

416

334

315

308

295

277

264

256

252

252

211

171

151

145

145

132

124

116

106

97

Maximum Minimum

81 16

2,630 14

735 115

2,960 11

152 80

£ 430 117

1*100 349

3.y500 556

£ 210 441

1^040 97

19 8*6

12 6.6

2,630 6.6

July

89

84

80

78

73

69

66

63

59

56

52

49

46

43

41

38

38

34

32

29

27

26

24

24

23

22

22

21

20

19 "19

Aug.

19

18

18

18

16

16

16

15

14

14

14

14

14

13

13

14

13

13

13

13

13

13

12

11

11

10

9.4

9.2

9.2

9.2

8.6

Sept.

8.6

8.4

7.9

7.6

7.4

7.4

7.2

7.4

7.9

7.9

7.6

7.4

7.4

7.6

7.2

6.8

6.8

7.0

7.0

6.8

6.6

7.9

9.9

9.9

12

11

8.9

8.6

8.4

8.1

 Runoff in Mean acre-fast

33.6 2,060 

261 15,540

216 13,290

553 400,000

105 6,490

430 23 , 860

668 41,080 

961 57,160

1,063 65,370

363 21,620

44 1 2 71O is!s '820

8.02 477

346 250.500

b Stage-discharge relation affected by Ice.
AMERICAN RIVER BASIN 371

Georgetovm ditch above Pilot Creek, near Georgetovm, Calif.

Location.- Staff gage, lat. 38°56', long. 120°29' , in SWij sec. 25, T. 13 N., R. 13 E., 

0.5 mile northeast of Uncle Toms Cabin and 20 miles east of Georgetovm.

Records available.- May to September 1947.

Extremes.- Maximum daily discharge during period May to September, 26 second-feet at 

various times during July to September; no flow May 8-14, Aug. 1.

Remarks.- Records fair. Ditch diverts from Gerle Creek, Rubicon River Basin, into Pilot 

CYeelc. Plow is then diverted from Pilot Creek, about 8 miles downstream, for domestic 

and irrigation purposes in vicinity of Georgetovm (see Georgetown ditch near Georgetown, p. 374).

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

ii

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 ......................................

Uau "ay. .......................................

June .......................................

July.. .....................................

August .....................................

September . .................................

The period ..............................

Mar. Apr.

Secondfoot-days

_

383.0

675

791

749

663

-

May

7.1

11

12

11

alO

8.7

7.2

0

0

0

o

o

o

0

12

16

a!7

18 die

18

17

a!7

18

18

19

20

21

21

a22

22

22

Maximum

_

22

24

26

26

26

-

June

22

22

a22

23

a23

23

21

21

a21

21

a22

23

23

22

a22

a22

22

a22

23

a23

23

a23

23

23

23

a23

23

a23

a24

24

-

Minimum

0

21

24

0

21

-

July

24

24

26

a26

26

a26

26

d26

d26

d26

d26

d26

d26

d26

a26

26

25

a25

25

25

a25

25

25

a25

25

26

26

26

a£6

25

25

Aug.

0

25

25

26

25

25

25

26

26

26

26

26

a26

25

25

26

26

a26

26

a26

26

26

a26

26

26

22

a22

22

22

a22

a22

Mean

_

_

12.4

22.5

25.5

Z4.2

22.1

-

Sept.

22

a21

21

a21

21

21

21

22

a22

a22

22

a22

22

a22

22

a22

21

a21

a21

21

a21

21

a21

21

21

a24

26

26

a26

26

-

Runoff in 

acre-feet

_

_

760

1,340

1,570

1,490

1,320

6,480

a No gage-height record; discharge Interpolated.

b Doubtful gage-height record; discharge interpolated.
372 AMERICAN RIVER BASIN

Pilot Creek near Georgetown, Calif.

Location.- Water-stage recorder, lat. 38°54', long. 120°29', in ffl£ sec. 10, T. 12 N., R. 

12 &.,. 1.8 miles upstream from Mutton 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 1947. 

as filot Creeic near Quintette).

February 1910 to July 1914 (published

Extremes.- 1946: Maximum discharge during period January to September not determined; 

minimum, 0.4 second-foot Aug. 16-20.

1946-47: Maximum discharge during water year, 199 second-feet Mar. 10 (gage height, 

7.62 feet); minimum, 0.5 second-foot July 25-27.

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, p. 371, and Georgetown ditch near Georgetown,

p. 374, which diverts about 1 mile above station).

Rating table, Jan. 1, 1946, to Sept. 30, 1947, except period of Ice effect

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used July 15 to Sept. 16, 1946)

4.9

5.0

5.1

5.2

5.3

0.5 

1.2 

2.1 

3.2 

4.6

5.4

5.5

5.6 

5.8 

6.0

6.5 

9.1

6.3 46

6.6 69

7.0 112

7.4 166

Discharge, In second-feet, 1946-47 

1946

Day

I

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

. a!30

allO

99

106

115

96

90

82

74

68

.63

58

54

51

47

45

42

39

37

35

34

33

32

32

31

30

29

28

27

26

26

Feb.

25

25

28

27

26

25

26

24

24

24

24

24

23

22

22

22

22

22

22

24

34

35

32

33

33

33

42

59

_

-

Mar.

52

52

52

50

47

47

47

47

48

50

50

52

96

74

68

65

63

63

63

62

58

56

54

52

50

52

52

59

67

64

56

Apr.

54

52

51

52

52

55

55

58

59

63

67

73

76

75

78

81

83

83

78

72

67

64

63

61

55

55

50

46

40

35

-

May

32

26

23

23

21

19

17

16

14

13

12

10

9.4

8.6

8.6

7.8

6.1

4.5

5.6

5.4

4.8

7.0

8.8

6.1

5.4

24

20

12

8.6

8.3

7.8

June

6.3

7.0

7.5

7.5

7.3

8.6

8.1

7.8

7.5

8.3

8.3

7.8

7.0

7.0

7.3

7.8

6.5

5.6

5.2

4.2

5.2

5.9

5.7

5.9

6.3

6.1

5.2

4.3

4.2

4.2

-

July

3.8

3.9

3.5

3.3

3.2

2.9

2.9

3.0

2.9

2.8

2.5

2.2

2.1

2.1

2.2

2.5

2.0

1.8

1.8

1.8

1.6

1.6

1.5

1.5

1.6

1.6

1.6

1.6

1.5

1.5

1.2

Aug.

1.3

1.2

1.4

1.4

1.5

1.4

1.6

1.5

1.6

1.6

1.6

1.5

1.4

1.4

1.6

1.3

.5

.5

.5

.5

.5

.5

.6

.6

.6

.7

.8

.8

.8

.8

.9

Sept.

1.1

1.5

1.6

2.0

2.1

2.0

2.O

2.1

1.7

1.8

1.8

2.0

1.6

1.6

1.7

8.4

7.O

3.9

3.6

3.2

3.1

3.2

2.9

2.1

1.4

1.2

1.2

1.3

1.0

1.1

-

a No gage-height record; discharge computed on basis of records for Rubicon Hlver near Georgetown.
AMERICAN RIVER BASIN 373

Discharge, In second-feet, of Pilot Creek near Georgetown, Calif., 1946-47--Contlnued

1946-47

Day

1

2

3

4

5

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

I 

17t

Oct.

7.4

7.3

6.1

4.5

3.1

2.4

2.4

3.6

1.7

2.0

5.2

3.1

2.2

1.2

.7

1.4

1.2

1.0

1.1

.9

.8

1.1

2.2

1.4

1.1

1.0

1.1

1.2

1.5

1.4

.7

Nor.

0.6

1.2

1.9

1.9

1.9

1.9

1.8

1.6

1.6

1.5

1.5

1.5

1.5

1.6

1.6

1.5

1.5

6.0

74

57

18

18

108

33

19

13

9.8

7.3

5.1

4.3

-

eak discharge. -

sec. -ft.; Mar.

Dec.

4.6

4.3

3.8

17

25

 33

21

16

13

11

9.4

8.3

7.0

6.3

5.9

5.6

5.0

4.5

4.3

4.2

4.0

3.9

3.8

5.0

9.8

 8.3

16

13

9.8

8.3

7.3

Jan.

6.8

6.1

5.7

5.9

5.4

5.2

4.8

4.5

4.3

4.2

4.0

b3.8

b3.6

b3.6

b2.5

b3.9

b3.2

b3.0

b2.9

b2.9

bE.9

b2.9

b3.0

b3.0

b3.1

b3.3

b3.2

b3.8

6.3

5.7

4.6

Feb.

3.2

2.6

2.4

2.4

2.3

2.4

2.6

3.0

4.5

8.6

8.1

40

115

65

49

41

35

30

28

26

24

22

20

19

18

16

17

16

-

-

-

Mar.

20

36

34

30

28

26

26

27

31

154

126

93

74

63

55

48

42

36

34

32

29

28

33

27

24

23

22

32

35

66

50

Apr.

44

42

46

41

40

45

44

46

50

48

46

42

36

36

33

32

28

25

24

22

21

20

18

18

16

15

15

8.7

3.1

2.5

-

Hay

1.8

4.7

9.8

11

9.1

5.9

5.0

3.6

2.5

4.5

4.7

4.1

4.1

5.4

5.4

4.6

5.9

6.1

5.9

5.7

4.5

3.0

2.0

1.6

1.4

1.5

6.8

6.1

6.3

6.3

12

June

21

18

16

12

14

12

15

21

21

15

10

8.1

7.0

6.1

5.2

5.0

5.4

5.4

4.6

4.6

4.5

4.2

3.9

4.2

4.3

3.9

3.6

3.8

3.1

3.0

July

3.5

3.6

3.0

2.9

3.5

3.5

3.5

3.5

3.0

2.4

2.6

2.9

3.0

2.8

2.6

2.4

2.2

2.2

2.0

1.9

1.6

1.1

1.1

1.0

.6

.5

.5

.6

.6

.7

.7

Aug.

0.7

.7

.7

.7

.7

.7

.7

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.1

Sept.

1.1

l.l

1.1

1.0

1.0

.9

.9

1.0

1.0

.9

.9

.8

.8

.9

.9

.8

1.0

1.1

1.0

.9

.9

.8

.8

.8

.8

.9

.8

.8

.9

.9

Nov. 19 (11 p.m.) 152 sec. -ft.; Nov. 23 (9 a.m.) 184 sec. -ft.; Feb. 12 (8 p.m.) 

10 (1 p.m.) 199 sec. -ft.

» Winter discharge measurement made on this day.

b Stage -discharge relation affected by Ice.

Monthly discharge, In second-feet, 1946-47

Month

December. ...................................

Calendar year .......................

February .

Uaw

July. .

September. ..................................

The period ................................

December. ...................................

Calendar year 1946 .......................

May........................................

September. .................................

Water year 1946-47 ......................

Seoondfoot-days

700

394.8

71.2

.

298.4

7,706.0

1 388

909 3

27.5

4,363.9

Maximum

3.9

8.4

.

33

130

50

1.1

154

Minimum

26

47

35

4.5

4.2

1.2

1.0

_

3.8

.5

2 5

2 3

g g

.8

.5

Mean

57.1

57.0

61.8

12.7

6.52

2.26

2.37

-

2 32

9.63

21.1

30 3

2 13

.92

12.0

Runoff in 

aore-feet

3,510

1,550

3,510

3,680

783

368

139

141

13,770

592

15,290

254

55

8,650

854211 O - 49 - 25
374 AMERICAN RIVER BASIN

Georgetown ditch near Georgetown, Calif.

Location.- Water-stage recorder, lat. 38°54', long. 120°37', in NE£ sec. 10, T. 12 N., 

K. IB is., 12 miles east of Georgetown.

Records available.- March to September 1947. 

as mot creek ditch near Quintette).

February 1910 to January 1914 (published

Extremes.- Maximum daily discharge during period March to September, 29 second-feet 

July 24-29; minimum daily, 11 second-feet Apr. 4, 5, 13-16.

Remarks.- Records good. Ditch diverts from Pilot Creek, about 1 mile above gaging 

station on Pilot Creek, for domestic and irrigation use in vicinity of Georgetown. 

(See also Georgetown ditch above Pilot Creek, near Georgetown, p. 371).

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

18

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

te.a

Dec.

te.7

. Jan. Feb.

Month

December. ...................................

Calendar year ......................

March. .............................. . .

Apri 

Hay

1. .................................

June ...................................

July 

Augu 

Sept

st .....................................

ember. .................................

The period ........

Mar.

_

_

_

_

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

t3.2

_

-

-

-

-

_

-

-

11

12

12

Apr.

12

12

12

11

11

12

12

12

12

12

12

12

11

11

11

11

12

14

14

13

13

13

13

12

12

12

12

16

20

20

-

Seoondfoot-days

_

-

-

382 

702

745

865 

843 

677

-

May

20

23

21

19

20

20

21

20

20

22

21

20

20

22

22

21

22

22

22

22

23

24

26

26

26

28

26

25

27

27

24

Maximum

.

-

-

20 

28

27

29 

28 

24

-

June

23

21

22

24

24

23

24

22

20

23

25

24

26

26

25

25

26

27

26

26

26

26

26

26

27

27

27

26

26

26

-

Minimum

_

-

-

11 

19

20

26 

24 

21

-

July

27

26

27

28

27

27

27

27

23

28

28

28

28

28

27

28

28

28

28

28

28

28

28

29

29

29

29

29

29

28

28

Aug.

27

28

28

28

28

28

28

28

28

28

28

23

28

28

28

28

28

28

28

28

28

28

28

28

27

25

24

24

24

24

24

Mean

_

-

-

12.7 

22.6

24.8

27.9 

27.2 

22.6

-

Sept.

23

23

22

22

22

22

22

23

24

23

23

22

22

22

21

21

22

22

22

22

21

21

23

24

24

23

24

24

24

24

-

Runoff in 

acre-fsst

_

_

-

758 

1,390

1,480

1,720 

1,670 

1,340

8,360

t Result of discharge measurement.
AMERICAN RIVER BASIN 375

South Fork American River near Kyburz, Calif.

Location.- Water-stage recorder, lat. 38M6', long. 120°19', in S? sec. 29, T. 11 N., R.

 ib E., beside 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 1947. 

Average discharge?- 25 years (1922-47), 372 second-feet, combined flow of South Fork

American Hiver near Kyburz and El Dorado Canal. 

Extremes.- Maximum discharge during year, 2,010 second-feet May 2 (gage height, 5.52 feet);

minimum, 3.3 second-feet (regulated) Sept. 6.

1922-47: 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 for period of doubtful gage-height record, which are

 fair. Flow regulated by storage in four reservoirs, and by diversions above station.

(See records for El Dorado Canal, which diverts 0.5 mile above station.) 

Cooperation.- Water-stage recorder'graph, furnished by the Pacific Gas & Electric Co.,

 obtained in connection with a Federal Power Commission project.

Rating table, water year 1946-47 (gage height, 

In feet, and discharge, in second-feet)

1.3 3.6 2.0 47 3.6 420 

1.4 5.7 2.3 83 4.0 628 

1.5 9.0 2.6 130 4.5 975 

1.6 14 2.9 192 5.0 1,420 

1.8 28 3.2 272 5.5 1,980

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.

75 

31 

14 

7.7 

7.4

8.0 

7.7 

10 

8.3 

7.4

7.7 

7.7 

7.7 

45 

127

164 

147 

134 

132 

132

130 

122 

143 

123 

113

110 

107 

102 

113 

118 

118

Nov.

127 

123 

118 

118 

113

99 

93 

80 

66 

69

58 

54 

40 

37 

34

21 

7.7 

7.0 

139 

87

5.7 

13 

516 

120 

36

18 

11 

5.3 

5.5 

6.4

Dec.

6.0 

6.0 

5.1 

5.7 

68

90 

24 

6.4 

5.3 

4.9

4.2 

4.9 

5.3 

6.4 

6.4

5.7 

6.7 

8.3 

10 

d6

d5.5 

d5.5 

d5.5 

d7 

24

7.7 

14 

12 

14 

5.5 

6.4

Jan.

7.4 

17 

16 

33 

12

6.4 

6.0 

6.0 

6.4 

6.0

7.0 

7.0 

6.4

e.o

5.3

6.7 

5.5 

6.0 

6.0 

6.0

5.3 

6.0 

6.0 

5.7 

5.5

14 

6.7 

5.1 

5.5 

6.7 

6.4

Feb.

7.4 

6.7 

7.0 

8.3 

5.5

6.0 

5.5 

7.0 

8.0 

8.3

5.7 

376 

314 

177 

134

110 

86 

69 

56 

50

41 

36 

37 

49 

51

46 

48 

26

Month

Octc 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

mber. ..................................

 her................................. ..

lendar year 1946 

ary

1. .....................................

ember. .................................

ter year 1946-47 ......................

Mar.

29 

151 

96 

68 

47

36 

34 

32 

29 

125

123 

100 

96 

102 

123

151

183 

202 

179 

194

192 

216 

269 

179 

147

149 

192 

224 

214 

234 

199

Apr.

179 

155 

155 

130 

125

127 

127 

128 

143 

147

197 

237 

318 

457 

521

605 

634 

554 

605 

678

565 

403 

355 

391 

374

395 

466 

438 

501 

702

Secondfee t-days

2,379.6 

2,227.6 

392.4

121,628.6

253.0 

1,781.4 

4,314 

10,812 

22,874 

4,720.3 

167.9 

161.1 

207.3

50,290.6

Peak discharge.- Nov. 23 (7 a.m.) 848 sec. -ft. s May 2

May

1,040 

1,330 

1,480 

1,450 

1,470

1,470 

1,220 

991 

805 

678

491 

457 

471 

486 

548

652 

716 

756 

756 

690

710 

697 

611 

511 

443

391 

359 

298 

260 

282 

355

Maximum

164 

516 

90

2,210

33 

376 

269 

702 

1,480 

429 

6.4 

7.0 

8.0

1,480

June

429 

363 

308 

226 

197

183 

382 

403 

282 

219

211 

174 

151 

153 

149

141 

123 

116 

107 

111

119 

39 

10 

65 

22

13 

6.7 

5.5 

5.7 

6.4

Minimum

7.4 

5.3 

4.2

4.2

5.1 

/ 5.5 

29 

125 

260 

5.5 

4.6 

4.4 

6.0

4.2

July

6.4 

5.5 

5.3 

5.3 

6.0

6.4 

6.4 

6.4 

5.7 

5.5

5.5 

5.5 

5.3 

5.3 

5.3

5.1

5.3 

4.6 

5.1 

4.9

4.9 

4.9 

5.1 

5.1 

5.5

6.0 

5.3 

4.9 

5.7 

5.1 

4.6

Aug.

5.1 

5.3 

4.4 

4.6 

5.1

5.1 

5.1 

4.6 

5.7 

6.0

5.7 

4.9 

4.9 

5.1 

5.1

4.9 

4.9 

4.9 

5.3 

5.1

4.9 

4.9 

5.3 

5.1 

5.1

5.1 

4.9 

5.3 

5.3 

6.4 

7.0

Sept.

6.7 

6.7 

7.7 

7.0 

8.0

7.9 

6.0 

.0 

.0 

.7

.0 

.4 

.4 

7.0 

6.7.

6.7 

7.7 

6.4 

7.0 

6.4

6.4 

6.0 

7.0 

7.0 

7.0

6.7 

6.7 

6.7 

6.7 

6.7

,. Runoff in 116811 acre-feet

76.8 4,720 

74.3 4,420 

12.7 778

333 241,300

8. 16 502 

63.6 3,530 

139 8,560 

360 21,450 

738 45,370 

157 9,360 

5.42 333 

5.20 320 

6.91 411

138 99,750

(9 p.m.) 2,010 sec. -ft.

d Doubtful gage-height reeordj discharge computed on basis of 2 gage readings and trend of record.
376 AMERICAN RIVER BASIN

South Fork American River near Camino, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°42', in SW£ sec. 25, T. 11 N., R. 

J.1 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.

Kecords available.- October 1922 to September 1947.

Average discharge?- 25 years, 880 second-feet, combined flow of South Pork American River 

near famine ana American River flume.

Extremes.- Maximum discharge during year, 4,500 second-feet May 3 (gage height, 10.20 

feet); minimum, 8.2 second-feet (regulated) Sept. 4.

1922-47: Maximum discharge, 34,400 second-feet Dec. 11, 1937 (gage height, 25.5 

feet, from floodmarks in gage house), from rating curve extended above 14.000 secondfeet on basis of velocity-area studies; minimum, 1.2 second-feet Aug. 24, 1931.

Remarks.- Records good except those below 50 second-feet, which are fair. Plow regulated 

Dy rour reservoirs. Two diversions above station; American River flume (see p. 386) 

and El Dorado Canal (see p. 381).

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating table, water year 1946-47 (gage height, 

in feet, and discharge, in second-feet)

0.8 14 3.0 238 6.0 1,300 

1.0 21 3.5 -333 7.0 1,880 

1.5 50 4.0 466 8.0 8,580 

2.0 93 4.5 632 9.0 3,380 

2.5 156 5.0 828

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

Oot.

81 

195 

120 

108 

83

63 

60 

68 

64 

61

55 

50 

57 

33 

21

36 

36 

55 

49 

47

44

41 

64 

76 

46

32 

26 

22 

22 

26 

28

Nov.

28 

33 

88 

22 

21

21 

19 

18 

17 

16

16 

15 

15 

15 

15

14 

15 

14 

383 

1,160

287 

226 

1,980 

886 

446

322 

270 

235 

205 

177

Dec.

169 

141 

127 

271 

358

874 

505 

360 

302 

257

823 

217 

184 

169 

148

139 

121 

90 

101 

111

118 

105 

116 

108 

210

276 

437 

331 

266 

201 

159

Jan.

195 

116 

83 

105 

 166

166 

100 

107 

102 

109

96 

91 

94 

103 

47

58 

99 

86 

110 

105

102 

84 

80 

84 

83

113 

117 

144 

102 

143 

152

Feb.

136 

146 

150 

159 

155

163 

190 

192 

224 

289

256 

1,480 

1,960 

1,130 

836

714 

695 

698 

646 

610

569 

542 

535 

535 

576

572 

593 

565

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber.. .................................

lendar year 1946 

arv

1. .....................................

ember. .................................

ter year 1946-47 ......................

Peak discharge.- H

(1:30 p.m.) 3,080 se

Mar.

522 

1,110 

1,030 

924 

790

582 

478 

525 

513 

2,350

1,900 

1,430 

1,220 

1,140 

1,060

982 

1,010 

1,060 

938 

942

938 

951 

1,240 

942 

774

714 

820 

978 

1,100 

1,500 

1,200

Apr.

1,050 

951 

1,050 

938 

883

915 

888 

910 

1,010 

956

1,060 

1,140 

1,260 

1,540 

1,740

1,770 

1,960 

1,620 

1,610 

1,860

1,710 

1,240 

1,100 

1,180 

' 1,170

1,160 

1,320 

1,330 

1,300 

1,540

Secondfcot-days

1,857 

7,359 

7,193

326,995

3,347 

15,316 

31,668 

38,166 

45,167 

10,853 

711 

526 

482

162,645

May

2,070 

2,750 

3,110 

2,930 

2,810

2,740 

2,420 

1,860 

1,510 

1,370

1,150 

1,040 

1,050 

1,050 

1,160

1,280 

1,360 

1,400 

1,360 

1,330

1,280 

1,260 

1,150 

987 

366

774 

657 

664 

559 

522 

698

Maximum

195 

1,980 

374

4,640

195 

1,960 

2,350 

1,960 

3,110 

982 

38 

20 

19

3,110

June

982 

353 

691 

535 

428

452

315 

866 

775 

520

416 

398 

313 

289 

280

281 

249 

253 

223 

216

220 

182 

106 

79 

126

80 

73 

63 

38 

51

Minimum

21 

14 

90

14

47 

136 

478 

883 

522 

33 

17 

16 

14

14

July

33 

38 

24 

26 

23

23 

26 

26 

36 

23

23 

22 

24 

24 

21

21 

24 

20 

22 

20

18 

19 

19 

19 

19

19 

19 

24 

21 

17 

18

Aug.

al7 

al7 

17 

17 

17

17 

17 

18 

19 

16

17 

17 

17 

17 

18

17 

17 

20 

16 

' 16

18 

17 

16 

16 

17

17 

17 

16 

16 

16 

16

Sept.

16 

16 

16 

15 

15

16

14 

16 

16 

17

16 

16 

16 

16 

17

15 

14

15 

16 

16

15 

19 

19 

18 

16

17 

16 

16 

16 

16

uo-r. Runoff in 116811 aore-feet

59.9 3,680 

245 14,600 

232 14,270

896 648,600

108 6,640 

547 30,380 

1,022 62,810 

1,272 75,700 

1,457 39,590 

362 21,530 

22.9 1,410 

17.0 1,040 

16.1 956

446 322,600

ov. 23 (10:30 a.m.) 3.230 sec. -ft. j Feb. 12 (11 p.m.) 3,130 sec. -ft. j Mar. 10 

c.-ft.; May 3 (1 a.m.) 4,500 sec. -ft.

a No gage-height record; discharge interpolated,
AMERICAN RIVER BASIN 377

Echo Lake conduit near Vade, Calif.

Location.- Water-stage recorder, lat. 38°50', long. 120°02', in NW^ sec. 6, T. 11 N., R. 

i» K., 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 1947.

Extremes.- Maximum daily discharge during season, 27 second-feet Sept. 9-12; no flow 

during most of year.

1923-47: 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. No flow except during periods for which discharge is published, 

consult diverts from Echo Lake in Truckee River Basin into basin of South Pork 

American River for power and irrigation.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gaa & Electric Co., obtamed in connection with a Federal Power Commission'project.

Discharge, In second-feet, September; to November 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

Month

Sept 

Octo

ember ..................................

November ....................................

The period. . .............................

Seoondfoot-days

566 

262.6

126.6

-

Maximum

27 

12

7.4

-

Minimum

0 

5.5

0

-

Sept.

O

O

O

0

11

26

26

26

27

27

27

27

26

26

26

26

21

25

24

23

22

21

30

19

18

' 17

16

14

13

12

"

Oct.

11

9.8

9.0

8.1

7.5

6.9

6.3

6.1

5.9

7.0

7.2

a6.5

6.2

5.9

5.5

6.4

S.3

11

12

12

11

11

11

11

10

10

8.9

7.8

7.6

7.9

7.6

Nov.

7.4

7.3

7.2

6.9

6.S

6.6

6.7

6.7

6.6

6.4

6.4

6.1

5.8

5.7

5.5

5.3

5.2

5.2

5.2

5.2

2.4

0

0

0

O

O

0

O

0

0

-

« _ Runoff in *ean acre-feet

18.9 1,120 

8.47 521

4.22 251

1,890

a Ho gage-height record; discharge computed on basis of recorded range In stage.
378 AMERICAN RIVER BASIN 

Medley Lakes Outlet near Vade, Calif.

Location.- Water-stage recorder, lat. 38°51 I , long. 1200 08', in SW£ sec. 29, T. 12 N., 

K. JLY K., 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 1947.

Average discharge.- 25 years, 16.9 second-feet.

Extremes.- Maximum discharge during year, 92 second-feet July 28, 29 (gage height, 2.31 

feet); minimum, 0.3 second-foot Sept. 26-30.

1922-47: 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 Dec. 25 to Feb. 23, which are poor. About 200 

acre-feet In Medley Lakes, above station, on Sept. 30, 1946, and practically no available contents on Sept. 30, 1947.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamed in connection with a Federal Power Commission project.

Rating table, water year 1946-47, except periods of Ice effect 

(gage height, In feet, and discharge In second-feet)

0.2 

.3 

.4 

.5

1.1 

1.8 

2.8

1.0 

1.2

4.3

6.3

8.8

12

19

1.4 

1.6 

1.8 

2.0 

2.3

40

53

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.

9.4

7.3

6.5

5.3

4.7

4.3

4.5

4.9

4.7

4.3

4.3

4.1

4.1

6.2

15

17

17

16

16

.16

16

17

17

16

15

15

15

15

14

14

14

Nov.

14

13

12

12

12

11

11

11

10

8.6

6.8

5.1

4.9

4.7

4.7

4.5

4.1

3.3

12

15

12

13

15

14

14

14

14

14

13

12

-

Dec.

12

12

12

11

12

12

11

11

11

10

10

9.4

8.6

6.8

5.5

4.9

4.3

4.1

4.]

3.9

3.9

3.5

3.0

2.9

b3

b3

b3

b3

b3

b3

b3

Jan.

> b2

Feb.

 b3

2.5

1.1

1.0

.8

.8

_

-

Month

October. ...................................

November . ..................................

December . ..................................

-Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May.. ......................................

June .......................................

July............... ........................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

0.9

.8

.9

.8

.8

.7

.7

.7

.7

.8

1.0

.9

.9

.8

.9

1.2

1.5

1.6

1.5

1.6

1.6

1.8

2.1

1.6

1.4

1.4

1.6

1.5

1.4

1.4

1.4

Apr.

1.2

1.2

1.4

1.2

1.2

1.2

1.1

1.1

1.2

1.2

1.6

2.1

2.8

3.8

4.9

5.3

5.1

4.3

5.3

7.5

3.6

2.7

2.4

*3.5

3.9

4.3

b5.1

4.9

5.5

7.O

-

Secondfoot-days

339.6

314.7

209.9

6,389.6

62

75.2

36.9

97.6

366.9

1,127

2,122

564.7

89.9

5,406.4

May

8.8

b!2

b!4

14

14

13

10

7.0

6.1

5.3

5.7

6.1

6.8

7.5

8.8

9.7

1°

Jo

10

11

11

11

9.4

9.4

9.4

7.8

9.1

14

19

32

45

Maximum

17

15

12

58

_

2.1

7.5

45

77

9O

84

6.1

90

June

73

61

44

34

34

36

77

77

57

45

36

31

33

36

38

37

35

36

41

42

29

22

21

21

22

-- 22

20

19

26

22

-

Ilinimun

4.1

3.3

2.9

-

.8

.7

1.1

5.3

19

22

6.3

.3

.3

July

22

31

31

38

42

51

64

65

64

64

64

64

67

73

72

72

71

73

78

78

80

84

83

82

85

87

85

88

90

89

85

Aug.

84

81

78

75

51

11

8.3

8.0

8.0

8.0

8.0

8.0

7.8

7.8

7.8

7.8

7.8

7.8

7.5

7.3

7.3

7.3

7.0

7.O

7.0

6.8

6.8

6.5

6.5

6.3

6.3

Bean

11.0

1O.5

6.77

17.5

2

, 2.69

1.19

3.25

11.8

37.6

68.5

18.2

3.00

14.8

Sept.

6.1

5.9

5.7

5.7

5.7

5.5

5.5

5.1

4.9

4.7

 4.5

4.3

4.1

3.9

3.8

3.3

2.6

1.9

1.4

1.0

.8

.6

.6

.4

.4

.3

.3

.3

.3

.3

-

Runoff in 

ao re-feet

674

624

416

12,670

123

149

73

194

728

2,240

4,210

1,120

178

10,73O

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice (no gage-height record Dec. 30 to Feb. 23).
AMERICAN RIXER BASIN 

Silver Lake Outlet near Kirkwood, Calif.

379

Location.- Water-stage recorder, lat. 38°40', long. 120°08«, in SWi 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.

Records available.- September 1922 to September 1947.

Average discharge.- 25 years, 32.4 second-feet.

Extremes (regulated).- Maximum discharge during year, 283 second-feet May 3 (gage height,

 3.Kb feet); minimum, 0.1 second-foot on many days February to April.

1922-47 : Maximum discharge, 504 second-feet Dee. 11, 1937 (gage height, 5.10 feet), 

from rating curve extended above 190 second-feet; minimum, 0.1 second-foot during 

periods when reservoir gate was closed.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Contents in Silver Lake was 4,800 acre-feet on Sept. 30, 1946, and about 1,250 acrefeet on Sept. 30, 1947. In addition to water released through dam and over spillway 

some escapes from Silver Lake through porous rock formation.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co.,.ob-

 tained in connection with a Federal Power Commission project.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, In second-feet)

O.4 O.O l.O 14

.5 .2 1.2 26

.6 l.O 1.4 41

.7 2.5 1.6 57

.8 5.0 1.8 75

.9 9.O 2.O 93

2.2 111

2.4 131

2.6 151

2.8 173

3.0 196

3.4 248

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

Dot.

73

73

72

72

70

69

68

65

63

62

61

60

58

57

55

54

53

51

51

49

47

47

44

42

40

39

38

37

36

35

35

NOT.

33

30

27

25

25

24

23

22

19

18

6.0

.8

.7

.6

8.1

21

18

16

19

22

20

19

21

19

18

17

16

14

13

12

-

Dec.

12

11

9.9

9.4

1O

11

11

10

9.4

8.1

7.2

8.1

7.7

b7.7

7.2

b6.8'

b6.8

b6.4

6.0

5.7

' a5

Jan.

a5

Feb.

8.1

8.1

7.7

7.2

7.2

7.2

6.8

6.8

7.2

7.2

7.2

9.4

12

13

14

14

14

14

14

14

14

13

13

13

7.2

.2

.2

.1

_

-

Month

October ....................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

0.1

.2

.1

.1

.1

.1

.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

Apr"

0.1

.1

.2

.1

.1

.1

.2

.2

.2

.2

.3

.4

.4

.8

2.1

6.4

15

17

18

13

Seoondfoot-days

1,676

527 .2

226.4 ^ ----- - 

13,635.4

155

259.8

4.7

2 ,986 > 6

353.0

65.5

756.3

1,578

8,734.7

3.8

3.8

4.1

4.1

3.8

3.8

4.1

4.4

9.4

50

May

70

164

248

235

235

230

194

175

154

85

8.1

4.4

4.4

4.1

8.6

41

103

148

137

93

106

120

97

62

51

57

53

29

2O

25

25

Maximum

73

33

12

28O

14

.2

30

OAQ C*O

57

5.3

32

78

248

June

34

53

49

18

6.8

4.4

31

57

26

21

15

5.3

3.3

2.5

1.6

1.5

1.5

1.5

1.4

1.4

1.4

1.1

1.1

1.1

1.4

1.4

1.4

1.5

1.6

3.8

Minimum

35

.6

.2

.1

.1

. .1

4.J

1.1

. 6

.6

27

.1

July

5.3

4.4

3.6

3.1

2.7

2.9

3.3

2.9

2.5

2.0

1.5

1.1 I'.O

1.1

1.2

2.9

2.7

2.7

2.5

2.3

2.0

1.8

1.6

1.5

1.4

1.2

1.1

1.0

.9

.7

.6

Aug.

0 6

6

6

6

7 9

32

32

31

31

31

30

30

30

30

30

30

30

29

29

28

28

28

27

27

27

26

26

26

26

26

26

Sept.

27

27

27

27

50

78

77

75

74

73

71

69

67

65

63

62

60

58

55

54

52

50

47

45

43

40

38

36

35

33

u«pn Runoff in 

Mean aore-feet

54 1 3 32O i7ie i)oso

7.30 449

37.4 27,060

5 307

9.28 515

15 9 3

4.87 29O

96.3 5,92O

11.8 700

2.11 130

24.4 1,50O

52.6 3,130

23.9 17,320

a No gage-height record; discharge computed on basis of weather records, 

b Stage-discharge relation affected by Ice.
380 AMERICAN RIVER BASIN

Twin Lakes Outlet near Kirkwood, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°42', long. 120°03", in 

SWf~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 1947 (October 1934 to September 1947, 

except way ana June 1945, include'flow over Twin Lakes spillway).

Average discharge.- 24 years (1922-44, 1945-47), 33.3 second-feet (including flow over 

Twin uiKes spillway).

Extremes (regulated).- Maximum combined daily discharge during year for outlet and 

spillway, ibY second-feet June 21; minimum, 1.6 second-feet Nov. 11, 12.

1922-47: Maximum combined daily discharge for outlet and spillway, 310 secondfeet June 1, 1943 (possibly exceeded in May 1945); minimum, 0.1 second-foot Mar. 25-31, 

1944.

Remarks.- Records excellent except those for November to March, which are fair, and those 

ror June 9-23, which are poor. No diversion. Contents in Twin Lakes was 11,900 acrefeet on Sept. 30, 1946, and 12,000 acre-feet on Sept. 30, 1947. Plow over Twin Lakes 

spillway occurred June 9-23, and is included in table below.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & 

tainea in connection with a Federal Power Commission project.

Electric Co., obDisoharge, in second-feet, water year October 1946 to September 1947

Day

1

6

11

15

16

21

26

28

30

Oct.

21

5.O

5.3

30

53

53

46

26

20

Nov.

55

54

53

33

13

11

11

11

4.3

2.2

4.1

3.0

2.6

2.6

2.6

7.3

15

21

21

22

22

20

22

22

22

~

Dec.

22

22

22

22

22

22

21

21

21

20

21

20

20

20

20

20

21

21

21

21

21

22

22

22

22

22

21

20

20

20

Jan.

21

20

20

20

20

20

20

20

20

20

20

20

20

20

32

42

42

42

42

29

21

17

10

10

alO

alO

alO

15

20

V>

20

Feb.

20

20 12 **~

9.7

9.7

9.7

10

10

10

10

10

16

15

3.8

4.4

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

a3.8

a3.8

a3.8

a3.8

-

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April ......................................

May. .......................................

July. ......................................

September . .................................

Water year 1946-47 ......................

liar.

a3.8

h3.8

a3.8

a3.8

a3.8

a3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

a3.8

a3.8

a3.8

a3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

4.1

4.1

4.1

4.4

4.1

Apr.

4.1

4.1

4.1

4.1

4.1

4.1

4.1

3.8

3.8

3.8

3.8

3.8

4.1

4.4

4.7

4.4

4.4

4.1

3.5

2.4

2.2

3.0

3.8

3.8

3.8

3.8

3.8

3.8

4.1

4.1

-

Seccndfcot-days

654

17,360.7

1,433

9,271.8

May

4.4

4.1

3.8

4.1

3.8

3.8

3.8

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.4

4.4

4.1

4.1

4.1

3.5

3.5

5.0

6.5

4.6

Maximum

22

189

96

90

167

June'

4.4

4.1

3.5

3.5

3.8

2.6

6.2

5.6

10

12

72

35

43

64

64

64

63

63

63

63.

167

10

94

46

30

30

20

14

22

22

Minimum

2.2

20

2.2

32

13

2.2

July

22

22

22

22

22

22

26

27

26

25

24

23

22

24

24

23

22

22

22

21

20

22

22

22

22

22

22

22

22

22

25

Aug.

33

32

32

38

50

84

84

84

84

84

84

85

88

88

88

88

89

91

90

90

93

96

96

95

95

93

86

86

85

Mean

20.1

21.1

47.6

47.8

25.4

Sept.

86

90

90

60

15

22

22

30

32

51

48

49

50

62

67

Runoff in 

acre-feet

1,200

1,300

34,450

1

TTA

230

2,840

18,390

a No gage-height record; discharge Interpolated, 

h Computed from staff-gage reading.
AMERICAN RIVER BASIN 381

El Dorado Canal near Kyburz, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°19', in SE^ sec. 29, T. 11 N., 

K. 15 E., 400 feet downstream from intake and 2 miles west of Kyburz. Altitude of 

gage, about 4,100 feet (from topographic map).

Records available.- October 1922 to September 1947. 

Average discharge.- -25 years, 102 second-feet.

Extremes.- Maximum daily discharge during year, 159 second-feet June 24; no flow parts 

of October and November.

1922-47: 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 periods of ice effect, 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., obtamed in connection with a Federal Power Conmission project.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

3

4

5

6

7

8

9

10

11

12

13

15

\&

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

153

152

153

146

129

135

140

149

151

147

148

146

143

99

19

0

0

0

o

0

0

o

0

o

0

0

0

0

o

0

o

Nov.

0

o

0

o

0

0

2.2

0

0

0

0

0

0

0

o

23

46

44

117

147

134

132

147

147

154

154

152

146

140

133

-

Dec.

128

123

114

120

139

145

149

149

137

132

125

124

119

113

109

104

98

92

101

96

95

95

95

101

136

146

150

113

b!20

blO6

b!06

Jan.

bllo

b87

b85

b82

89

93

89

87

86

87

' 85

86

82

87

90

bl!5

b!21

bl!9

bl!4

113

91

88

82

8O.

78

84

94

84

92

111

104

Feb.

102

102

101

98

96

104

111

114

116

119

115

123

122

120

120

127

131

134

136

136

136

136

136

136

140

141

141

141

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April ......................................

Hay

September. .................................

Water year 1946-47 ......................

Bar.

138

135

135

135

136

136

136

136

136

130

126

126

130

135

136

137

136

139

141

142

141

142

142

141

142

143

144

137

140

145

145

Apr.

145

145

145

145

145

145

145

145

145

144

142

141

142

142

143

144

144

144

144

142

142

143

144

144

140

145

147

146

146

147

Secondfoot-days

2,010

3,68O

44,960.1

2 895

4 518

3,840

44,261.2

Bay

147

147

147

145

146

146

146

146

146

145

144

147

147

148

148

148

149

149

148

148

147

147

147

147

148

147

147

147

147

147

147

Maximum

153

150

158

140

159

June

147

147

147

147

147

147

148

147

146

147

148

150

150

152

155

156

157

157

158

158

157

157

157

159

157

157

156

136

134

137

Minimum

0

92

0

78

 I Of144

134

114

0

July

150

138

136

133

133

137

147

154

153

148

145

144

143

145

146

146

152

145

146

144

142

144

146

144

142

146

145

143

147

144

141

Aug.

144

145

142

138

14O

145

153

149

145

144

143

143

147

146

146

145

144

142

145

143

142

142

148

148

147

145

145

144

138

136

143

Mean

64.8

119

123

93 4

-i yx

128

121

Sept.

131

130

133

133

135

127

127

130

133

131

128

130

134

133

131

130

138

14O

138

133

130

127

123

116

116

119

117

117

116

114

Runoff in 

ao re-feet

3,990

7,300

89,180

7,620

87,790

b Stage-discharge relation affected by Ice.
382 AMERICAN RIVER BASIN 

Alder Creek near Whitehall, Calif.

Location.- Water-stage recorder, lat. 38°45', long. 120°22', in SW£ sec. 36, T. 11 N.,

 R. 14 K., three-quarters of a mile upstream from mouth and 2 miles southeast of 

Whitehall. Altitude of gage, about 4,000 feet (from topographic map).

Drainage area.- 22.8 square miles.

Records available.- October 1922 to September 1947 (include diversions by pipe line).

Average discharge.- 25 years, 33.6 second-feet.

Extremes^- Maximum discharge during year, 326 second-feet Nov. 23 (gage height, 2.96

 i'eet) no flow Oct. 5-13, Jan. 12-24.

1922-47: 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.

Extremes do not include flow in feeder pipe line.

Remarks.- Records good except those for period of ice effect, which are fair. Records

 (except 8xtr8mes) include computed flow in feeder pipe line that diverted Just above 

station into El Dorado Canal Oct. 2-14, Nov. 14 to June 14.

Cooperation.- Wat

,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.

1.3 

2.1 

1.9 

al.3 

al.O

a.S 

a.S 

a.S 

a.S 

a.S

a. 8 

a.S 

h.S 

h.6 

h.2

1.2 

1.5 

1.2 

.1 

.0

.0 

.1 

.5 

1.5 

1.2

1.1 

1.1 

1.1 

1.1 

1.1 

1.1

Nov.

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 

2.3 

a3.0

a2.9 

a2.9 

aS.l 

96 

63

26 

55 

188 

64 

36

31 

28 

a25 

a22 

ale

3r-stage recorder graph, furnished by Pacific Gas & Electric Co., obsction with a Federal Power Commission project.

barge, in seccnd-fset, water year October 1946 to September 1947

Dec.

al5 

13 

13 

15 

44

63 

46 

37 

32 

28

24 

22 

20 

19 

17

17 

14 

12 

12 

12

11 

alO 

hlO 

11 

19

19 

24 

17 

19 

18 

15

Jan.

16 

13 

all 

a!2 

a!2

12 

11 

11 

11 

10

10 

10 

hlO 

10 

9

9

e

7 

6 

hS

5

5 

5 

5

7

11 

9.4 

9.4 

9.4 

9.4 

9.4

Feb.

9.4 

9.4 

9.9

11 

12

14 

16 

17 

21 

24

27 

158 

153 

107 

69

77 

65 

59 

55 

50

44

41 

39 

37 

36

36 

36 

34

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febr 

Maro 

Apri 

May.

June 

July 

Augu 

Sept

Ha

mber ...................................

lendar year 1946 ......................

ary

uary . . .

h.. ....................................

ember. .................................

ter year 1946-47 ...*...................

Peak discharge.- S

271 sec. -ft.; Mar. 1

Mar.

37 

69 

63 

56 

54

53 

50 

49 

51 

139

130 

114 

107 

101 

95

89 

74 

73 

73

70

68 

68 

76 

66 

64

61 

60 

73 

79 

96 

89

Apr.

84 

79 

77 

72 

70

72 

76 

70 

73 

73

72 

69 

68 

68 

69

69 

68 

68 

64 

64

60 

56 

51 

48 

43

41 

41 

40 

38 

37

Seoondfoot-days

33.7 

680.7 

648

13,370.6

288.0 

1,286.7 

2,347 

1,880 

577.4 

151.8 

37.4 

14.5 

9.5

7,954.7

May

37 

39 

40 

39 

35

33 

31 

28 

26 

23

22 

20 

20 

18 

16

15 

14 

a!4 

h!2 

alO

alO 

a9.2 

a8.2 

aS.l 

a7.1

h6.1 

a6.1 

8.0 

7.5 

7.5 

7.6

June

9.2 

7.9 

a7.2 

a7.0 

a6.8

a6.6 

8.7 

8.0 

7.6 

a6.8

a6.1 

a5.4 

a4.7 

a4.4 

4.5

4.5

4.2

4.2 

3.8

3.5 

3.5 

3.3 

3.3 

3.0

3.0 

2.8 

2.5 

2.5 

2.3

Maximum Minimum

2.1 0.2 

188 1.1 

63 10

196 .2

16 5 

158 9.4 

139 37 

84 37 

40 6.1 

9.2 2.3 

2.3 .6 

.6 .4 

.4 .3

188 .2

July

2.3 

2.1 

1.9 

1.8 

l.S

1.6 

1.8 

1.6 

1.5 

1.3

1.3 

1.3

1.3 

1.2 

1.2

1.1

1.1 

1.0 

.9

hl.O 

a. 9 

a. 9 

a.S 

a.S

a. 7 

. a. 7 

h.6 

a. 6 

a. 6 

a. 6

Aug.

aO.6 

a. 6 

a. 6 

h.6 

a. 6

a. 6 

a. 6 

a.S 

a. 5 

a.S

h.S 

a.S 

a.S 

a.S 

a. 4

a. 4

h 

a 

a

a 

a 

a 

a 

h

a 

a 

a 

a 

a 

a

Mean

1.09 

22.7 

20.9

36.6

9.29 

46.0 

75.7 

62.7 

18.6 

5.06 

1.21 

.47 

.32

21.8

3V. 19 (8 p.m.) 222 sec. -ft.; Nov. 23 (4 a.m.) 326 sec. -ft.; Feb. 12 

3 (4 p.m.) 168 sec. -ft.

.4 

.4 .4 -

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Sept.

hO.4 

a.S 

h.3 

a. 3 

a. 3

a.S 

a. 3 

h.3 

a. 3 

a. 3

a. 3 

e.3 

a. 3 

a. 3 

h.S

a. 3

a. 4 

a. 4 

a. 4

a. 3 

h.3 

a.S 

a.S 

a. 3

a. 3 

a. 3 

a.S 

h.3 

a. 3

Runoff in 

acre-feet

67 

1,350 

1,290

26,520

571 

2,550 

4,660 

3,730 

1,150 

301 

74 

29 

19

15,790

(5 p.m.)

a Ho gage-height record on creek; discharge interpolated on basis of records for nearby strea 

h Computed from staff-gage reading. .

Note.- Stage-discharge relation for creek affected by ice Jan. 8 to Feb. 6 (no gage-height record 

Jan. 8-12, 14, 19, 21-25).
AMERICAN RIVER BASIN 383

Silver Creek at Union Valley, Calif.

Location^- Water-stage recorder, lat. 38°52', long. 120°26', in SE£ sec. 20, T. 12 N., 

RT~re~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 1947.

Average discharge.- 22 years (1924-27, 1928-47),. 198 second-feet.

Extremes.- Maximum discharge during year, 1,450 second-feet May 2 (gage height, 5.76 

reet); minimum, 3.5 second-feet Sept. 5-7, 14-17, 29, 30.

1924-47: Maximum discharge, 8,560 second-feet Dec. 11, 1937 (gage height, 15.28 

feet), from rating curve extended above 2,200 second-feet on basis of velocity-area 

studies; minimum,' 1.9 second-feet Aug. 27, 28, 1931.

Remarks.- Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. No storage or diversion above station.

Rating table, water year 1946-47, except periods of Ice effect 

(gage height, In feet, and disehargexln second-feet)

0.4 2.8 1.4 68 3.2 410

.5 5.1 1.6 91 3.6 534

.6 8.4 1.8 117 4.0 668

.8 18 2.0 144 4.5 856

1.0 31 2.4 216 5.0 1,070

1.2 48 2.8 304

Discharge, in second-fee t, water year October 1946 to September 1947

Day

1

Z

3

4

5

6

7

8

9

lOll

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

22

22

22

23

18

14

12

12

11

10

10

9.7

9.3

9.3

8.8

12

14

14

14

13

12

13

28

25

18

15

14

14

13

13

13

Nov.

12

12

11

11

11

11

11

11

11

11

12

12

12

14

14

13

15

33

378

173

89

105

553

207

125

103

96

89

85

79

-

Dec.

75

70

67

108

209

195

122

104

91

85

81

76

72

70

68

66

64

58

62

64

64

63

63

69

129

120

126

95

89-

78

86

Jan.

78

64

55

b56

b60

b60

b56

b56

b56

b56

b56

b56

b56

b50

b45

b58

b56

b56

b56

b56

b56

*b58

b60

b62

b66

84

83

76

70

74

74

Feb.

72

7O

70

74

76

80

84

88

90

110

100

400

500

300

250

210

180

160

150

140

140 1'30

130

140

150

150

160

150

-

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

Maroh. .....................................

April.......... ............................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

150

300

250

220

190

170

170

170

200

700

500

350

300

280

270

280

300

320

270

280

270

290

380

280

240

230

260

300

310

450

350

Apr.

300

280

280

250

240

250

250

250

280

270

300

320

370

450

500

520

540

430

430

500

450

350

323

365

365

396

434

431

446

556

May

754

878

86O

756

702

666

512

382

326

304

287

287

287

299

336

357

344

336

331

323

306

282

254

222

192

174

167

149

143

150

206

roTSays «* 

458 1 28

2 319 553

2^789 209

78,978.1 1,240

1 f 905 84

4,354 500

9,030 700

11,126 556

11,572 878

3,238 364

392.5 25

150.9 6.4

117.0 4.4

47,451.5 878

June

364

214

160

131

130

141

288

265

198

141

118

99

92

89

84

78

72

69

64

61

53

46

42

40

39

36

34

32

30

28

Minimum

8.8

11

58

5.1

45

70

150

240

143

28

6.4

4.2

3.5

3.5

July

25

24

22

21

20

2O

19

17

16

15

14

14

13

12

11

11

10

9.7

9.3

8.4

8.1

7.7

7.7

7.7

7.7

7.4

7.4

7.1

7.1

6.8

6.4

Aug.

6.4

6.1

6.1

6.1

5.8

5.8

5.4

5.1

4.9

5.1

5.1

4.9

4.9

4.6

4.6

4.6

4.4

4.4

4.2

4.2

4.2

4.4

4.4

4.4

4.2

4.2

4.2

4.4

4.G

4.6

4.6

Sept.

4.4

4.2

4.0

4.0

3.7

3.5

3.5

3.7

4.2

4.2

4.0

4.0

3.7

3.7

3.5

3.5

3.7

4.2

4.4

4.4

4.4

4.2

4.0

3.7

3.7

3.7

3.7

3.7

3.7

3.7

-

u .r. Runoff in 

Mean acre-feet

14.8 909

77.3 4,600

90.0 5,530

216 156,600

61.5 3,780

156 8,640

291 17,910

371 22,070

373 22,950

108 6,420

12.7 779

4.87 299

3.90 232

130 94,120

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.- Ho gage-height record Jan. 29 to Apr. 22; discharge computed on basis of recorded range In 

stage, weather records, and records for nearby streams.
384 AMERICAN RIVER BASIN

Silver Creek near Placerville, Calif.

Location.- Water-stage recorder, lat. 38°47', long. 120°35 ! , in SVf£ sec. 13, T. 11 N., 

 R. IS E., 0.2 mile upstream from mouth and 12 miles northeast of Placerville. Altitude of gage, about 2,250 feet (from topographic map).

Drainage area.- 176 square miles.

Records available.- December 1921 to September 1947.

Average discharge.- S5 years (1922-47), 386 second-feet.

Extremes.- Maximum discharge during year, 2,110 second-feet May 3 (gage height, 6.38 

reet); minimum, 20 second-feet Sept. 16, 17.

1921-47: 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.

Rating tables, Water year 1946-47 (gage height, In feet, and discharge, in second-feet) 

Oct. 1 to May 2 May 3 to Sept. 30

1.7 29

1.9 46

2.2 79

2.5 125

2.9 210

3.4 348

4.0 562

4.5 792

5.0 1,080

5.5 1,410

6.0 1,780

1.4 

1.6 

1.8 

2.0

2.2

2.5 

2.9

80

126

210

Note.- Same as preceding 

table above 2.9 feet.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

11

12

13

14

15

16

17

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

58

77

71

66

60

52

47

45

44

42

42

41

40

39

39

50

51

49

47

46

45

47

56

72

60

52

48

47

46

45

44

Nov.

44

42

40

39

38

39

41

41

40

39

39

44

45

48

48

44

46

57

654 '524

184

173

991

441

276

220

186

168

154

146

-

Dec.

140

129

122

225

319

473

298

239

205

179

168

154

146

144

133

129

116

111

118

122

122

122

116

123

196

220

298

220

203

158

144

Jan.

168

133

111

118

129

134

120

116

118

118

113

116

115

116

82

102

100

99

105

106

102

102

106

111

111

131

144

127

123

140

136

Fab.

129

131

131

140

144

150

166

175

177

213

196

722

964

586

455

400

348

318

298

287

268

262

259

282

293

298

315

290

_

_

-

Month

December. ..............................'.....

Calendar year 1946 ......................

March.... ..................................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

279

587

488

421

367

336

330

336

336

1,310

936

662

566

530

530

554

583

617

522

542

534

558

718

530

462

441

495

583

613

846

653

Apr.

596

546

542

495

477

492

495

503

534

526

579

626

723

895

966

1,000

1,040

824

841

990

873

604

570

635

639

644

732

737

718

830

-

Secondfoot-days

5,592

154,451

3 652

1

"ZCA

674

91,646

May

1,100

1,370

1,420

1,280

1,200

1,150

1,010

728

600

566

530

507

511

503

558

604

600

583

566

570

546

522

477

431

383

358

324

327

293

296

367

Maximum

473

1,940

168

964

30

25

1,420

June

571

438

342

279

254

276

454

455

414

298

249

208

186

182

175

166

158

152

142

140

130

112

98

94

93

88

86

83

79

74

-

Minimum

39

in

28

QO

279

21

21

July

68

65

63

61

58

56

54

54

52

50

48

47

47

44

43

41

40

39

37

36

35

34

33

33

33

33

33

32

32

32

31

Aug.

30

30

30

30

29

28

28

27

27

27

27

27

27

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

Mean

Cf\ c

163

180

423

118

299

654

22.5

251

Sept.

25

24

24

23

23

22

22

23

24

23

22

22

22

22

22

21

22

22

23

23

22

22

22

22

22

22

22

22

22

22

-

Runoff in 

acre-feet

11,090

306,400

34 240

1,340

181,800

Peak discharge.- Nov. 23 (9 a.m.) 1,380 sec. -ft.: Feb. 12 fll:30 D.m.l 1.410 sec. -ft.; Mar. 10

(1:30 p.m.) 1,730 sec.-ft.; May 3 (12:30 a.m.) 2,110 sec.-ft.
AMERICAN RIVER BASIN 385

South Pork Silver Creek near Ice House, Calif.

Location.- Water-stage recorder, lat. 38°49', long. 120°22', in SW£ sec. 1, T. 11 N., 

H. 14 £., 0.5 mile upstream from Peavine Creek, 1.5 miles northeast of Ice House, and 

8 miles northeast of Riverton. Altitude of gage, about 5,300 feet (from topographic 

map).

Drainage area.- 28.4 square miles.

Records available.- October 1924 to September 1947. July to October 1922 at site 1 mile 

upstream"!

Average discharge.- 23 years, 70.5 second-feet.

Extremes.- Maximum discharge during year, 602 second-feet May 2 (gage height, 3.31 feet); 

minimum, 0.4 second-foot Sept. 9-18, 24-30.

1924-47: Maximum discharge, 2,200 second-feet Bee. 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 ice effect or no gage-height record, 

vmich are fair. No storage or diversion above station.

Rating table, water year 1946-47, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet) 

. (Shifting-control method used Aug. 12 to Sept. 30)

0.2 0.2 O.S 24 1.8 152

.3 .5 1.0 39 2.0 198

.4 2.5 1.2 56 2.4 306

.5 6.8 1.4 80 2.9 458

.6 12 1.6 112

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

Dot.

8.7

14

16

13

11

8.7

7.2

7.7

7.2

6.8

6.3

5.8

5.8

5.4

5.4

6.8

7.2

7.2

 7.2

7.2

7.2

8.2

12

11

8.7

7.7

7.2

6.8

6.3

5.8

5.4

Nov.

5

5

4

3

3

3

3

3

3

3

3

3.5

3.5

4

4

3.5

4.0

6.3

34

22

15

14

52

48

38

30

25

23

21

20

-

Deo.

20

18

19

22

30

34

27

23

21

20

19

17

16

16

15

15

15

13

15

15

15

16

16

16

24

25

.25

20

18

16

16

Jan.

16

15

13

14

15

15

14

14

14

14

14

14

14

13

10

13

13

13

13

13

13

13

*13

13

14

17

16

15

14

16

16

Feb.

15

15

15

16

17

18

20

21

22

25

24

40

50

42

35

32

28

26

24

22

21

20

20

21

22

23

24

22

_

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1945 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

22

45

38

32

27

25

25

25

30

70

60

55

50

48

48

56

68

76

68

72

78

86

95

71

64

66

78

78

76

76

67

Apr.

67

61

59

55

52

51

50

52

52

54

67

85

125

181

219

242

256

208

221

256

216

147

141

150

156

170

191

193

201

261

-

May

364

442

448

429

413

391

300

221

181

162

152

147

145

152

172

188

186

179

179

176

172

160

139

123

107

97

91

83

76

83

105

fl^s -" 

250.9 16

408.8 52

597 34

29,958.5 519

434 17

680 50

1,775 95

4/239 261

6,263 448

1,719 150

231.4 16

40.9 2.5

13.6 .7

16,652.6 448

June

150

112

85

67

64

65

123

125

95

74

65

52

51

52

52

51

48

45

45

48

38

29

25

25

25

25

24

22

20

17

-

Minimum

5.4

3

13

1.6

10

15

22

50

76

17

2.5

.7

.4

.4

July

16

15

15

14

13

12

11

11

10

9.8

9.2

8.2

8.2

7.7

7.2

6.3

5.8

5.8

5.4

5.0

4.5

4.0

3.6

3.6

3.2

3.2

2.8

2.8

2.8

2.8

2.5

Aug.

2.5

2.2

2.2

2.2

1.9

1.9

1.9

1.6

1.6

1.6

1.6

1.3

1.3

1.3

1.3

1.1

1.1

1.1

1.1 I'.l

.9

.9

.9

.9

.9

.8

.8

.8

.7

.7

.7

Sept.

.7

.6

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

-

 Runoff in Mean acre-feet

8.09 498

13.6 811

19.3 1,1SO

82.1 59,410

14.0 861

24.3 1,350

57.3 3,520

141 8,410

202 12 420

57.3 3)410

7.46 459

1.32 81

.45 27

45.6 33,030

* Winter discharge measurement made on this day. . 

Note.- Stage-discharge relation affected by ice Nov. 1-16, Dec. 12-21, Dec. 28 to Jan. 24, 28-31.

No gage-height record Jan. 13-22, Jan. 31 to Mar. 14} discharge computed on basis of recorded range

in stage and records for Silver Creek near Placervllle.
386 AMERICAN RIVER BASIN

American River flume near Camino, Calif.

Location.- Water-stage recorder, lat. 38°46", long. 120°42', in SW£ sec. 25, T. 11 N., 

K. 11 is,, 300 feet upstream from Iowa Canyon Creek, 1 mile downstream from diversion 

dam, and 3 miles northwest of Camino. Altitude of gage, abo'ut 1,710 feet (from 

topographic map).

Records available.- November 1922 to September 1947. 

Average discharge.- 25 years, 108 second-feet.

Extremes.- Maximum daily discharge during year, 179 second-feet Apr. 7; no flow Feb. 18 

 to Mar. 4, Mar. 12-14.

1922-47: 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£ sec. 24, 

T. 11 N., R. 11 E., for power development in SW£ sec. 20, T. 11 N., R. 11 E., just 

above Rock Creek, at which point water is returned to South Fork.

Cooperation.- Water-stage recorder graph, furnished by Pacific das & Electric Co., obtalned in connection with a Federal Power Commission project.

Discharge. In second-feet, water year October 19*6to 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.

156

166

162

165

161

154

157

160

165

163

164

159

162

154

137

169

168

169

16S

168

169

168

168

168

169

169

168

162

160

169

169

Nov.

169

168

168

164

165

166

152

146

128

114

116

109

106

96

96

89

86

76

156

160

161

162

160

161

160

159

159

162

160

162

-

Dec.

162

162

162

162

158

161

162

162

156

159

159

159

164

166

166

166

165

164

162

165

165

164

164

162

164

164

164

163

163

163

163

 Jan.

164

163

163

163

163

163

163

164

163

163

164

163

162

164

162

151

164

165

165

165

165

165

166

165

166

166

166

165

165

165

166

Feb.

166

166

166

167

167

167

167

167

167

164

166

165

163

165

165

164

60

0

0

0

0

0

0

0

0

0

0

O

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

May. .......................................

September . .................................

Water year 1946-47 ......................

Mar.

0

0

o

0

8.7

105

164

164

164

164

45

0

0

0

38

142

164

164

164

164

164

164

164

164

164

164

165

165

165

165

166

Apr.

169

171

172

173

176

178

179

171

174

177

176

175

174

173

173

173

172

172

172

173

174

173

174

174

174

174

174

174

172

172

-

Secendfcct-days

5,066

4,236

5,041

52,756.3

5 124

3 452

3,318

52,071.7

May

172

172

172

172

172

172

170

172

173

173

172

172

172

172

172

172

171

171

170

170

169

169

168

167

167

171

172

171

170

170

170

Maximum

169

169

166

178

154

128

132

1T»

June

169

170

172

172

173

174 174

174

174

174

174

174

176

177

176

176

174

175

175

175

174

174

172

164

172

164

164

160

150

152

Minimum

137

76

156

0

79

0

July

148

154

149

149

152

149

150

152

154

139

138

139

136

130

130

129

126

127

126

118

115

116

120

119

118

116

104

132

116

112

116

Aug.

114

114

114

112

110

111

112

118

120

98

128

112

104

114

113

105

109

118

104

116

112

101

108

116

116

114

112

111

112

106

104

Mean

163

141

163

145.

132

in

143

Sept.

106

99

104

94

100

112

79

110

100

112

110

104

104

96

121

106

104

118

122

120

111

110

126

132

120

120

116

>16

. 122

124

Runoff in 

acre-feet

10,050

8,400

10,000

104,600

6,580

103,300
AMERICAN RIVER BASIN 

Webber Creek near Salmon Palls, Calif.

387

Location.- Water-stage recorder, lat. 38°45', long. 121°00', in sec. 32, T. 11 N., R.

y E., 1 mile upstream from mouth and 3.5 miles east of Salmon Palls. Altitude of gage, 

about 675 feet (from topographic map).

Drainage area.- 100 square miles (by Bureau of Reclamation). 

Records available.- March 1943 to September 1947.

Extremes.- Maximum discharge during year, 2,350 second-feet Feb. 12 (gage height, 11.06 

reet); no flow July 16 to Sept. 26.

1943-47: Maximum discharge, 5,000 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. 26, 1947.

Remarks.- Records good except those for periods of no gage-height record, which are poor, 

flow regulated by reservoir (capacity, 1,275 acre-feet) on headwaters from which most 

of flow is diverted during irrigation season. Small amount of water diverted from 

South Pork American River enters watershed during irrigation season.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6

7

e

9 

10

11

12 

13 

14 

15

16

17ie

19 

20

21 

22 

23 

24 

25

28 

29 

30 

31

Oct.

0.2 

.2 

.6 

3.8 

3.9

7.6 

7.6 

7.3 

5.8 

5.5

5.0 

4.0 

2.3 

.8 

.5

4.6 

9.1 

6.0 

4.6 

3.3

2.9 

2.9 

3.3 

3.6 

3.3

3.1 

3.1 

3.1 

3.9 

3.6 

3.6

Nov.

3.8 

3.6 

3.3 

3.3 

3.6

3.6 

3.1 

3.1 

3.3 

3.3

3.8 

3.8 

3.8 

3.9 

4.0

4.0 

4.5 

5.0 

116 

175

46 

26 

260 

66 

36

26 

22 

18 

16 

14

Dec.

13 

12 

12 

28 

46

148 

113 

67 

48 

38

32 

28 

25 

24 

21

20 

18 

18 

17 

14

13 

12 

12 

14 

 36

30 

47 

49 

35 

30 

25

Jan.

22 

20 

18 

16 

16

15 

15 

14 

13 

13

12 

12 

13 

12 

12

12 

12 

12 

12 

11

11 

11 

11 

11 

11

12 

14 

25 

34 

30 

34

Feb.

28 

25 

22 

20 

18

18 

17 

16 

17 

24

21 

956 

654 

196 

120

90 

75 

61 

53 

46

41 

36 

32 

30 

28

26 

25 

24

Month

Octc 

Neve 

Deoe

Ca

Janu 

Febr 

Hare 

Apri 

Hay.

June 

July 

Augu 

Sept

ffa

her. ...................................

liber. ..................................

 bar........... .........................

lendar year 1946 

ary

ember ..................................

ter year 1946-47 ......................

Peak discharge.- P

Note . - Ho gage -he i 

ment made July 2 and

Mar.

26 

71 

139 

252 

125

96 

82 

98 

104 

1,160

437 

219 

140 

113 

93

77 

68 

60 

56 

52

46 

40 

44 

36 

33

30 

28 

112 

160 

380 

159

Apr.

112 

112 

533 

335 

206

156 

122 

107 

115 

92

78 

67 

60 

54 

50

45 

38 

35 

30 

26

26 

26 

23 

24 

24

21 

20 

20 

19 

18

May

16 

13 

11 

11 

10

8.8 

8.2 

8.0 

7.5 

6.8

6.6 

5.8 

6.0 

5.6 

5.0

4.0 

3.6 

2.6 

2.8 

3.0

3.0 

2.9 

2.3 

2.0 

1.8

1.7 

2.1 

3.9 

2.9 

2.6 

3.0

Second- H.UH-.,- foot-days "a*""*

119.1 9.1 

887.8 260 

1,045 148

17,151.0 1,260

486 34 

2,719 956 

4,536 1,160 

2,594 533 

173.5 16 

77.7 7.2 

1.6 .2 

0 0 

1.6 .5

12,641.3 1,160

June

4.2 

4.2 

3.6 

3.9 

4.4

4.0 

5.0 

6.0 

7.2 

6.4

7.0 

3.7 

2.9 

3.0 

1.9

1.5 

1.2 

1.0 

.8 

.8

.7 

.7 

.6 

.6 

.5

.5 

.4 

.4

.3 

.3

Minimum

0.2 

3.2 

12

.2

11 

16 

26 

18 

1.7 

.3 

0 

0 

0

0

July

0.2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

0 

0 

0

o

0

0 

0 

0

o

0

o

0 

0 

0 

0 

0

Aug. Sept.

0 

0

o

0 

0

0 

0

o

0 

0

o

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o

.2 

.4 

.5 

.5

...or. Runoff in "ean acre-feet

3.84 236 

29.6 1,760 

33.7 2,070 .

47.0 34,010

15.7 964 

97.1 5,390 

146 9,000 

86.5 5,150 

5.60 344 

2.59 154 

.05 3.2 

0 0 

.05 3.2

34.6 25,070

eb. 12 (8:45 p.m.) 2,350 sec. -ft.] Mar. 10 (10:45 a.m.) 1,980 sec. -ft. 

ght record June 20 tc Sept. 26; discharge computed on oasis of discharge measurefield observation made on Aug. 14.
388 COLUSA AND TOLO BASINS

Yolo bypass near Woodland, 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 Sacramento bypass, 7 miles downstream from Premont weir, and 7 miles east of Woodland, 

Yolo County. Auxiliary water-stage recorder 6 miles downstream. Zero of both gages 

is set to datum of Corps of Engineers .

Records available.- October 1940 to September 1947 in reports of Geological Survey.

J.yaa-47 in reports of Division of Water Resources, Department of Public Works, State 

of California.

Extremes.- Maximum discharge during year, 1,280 second-feet Feb. 16 (gage height, 16.05 

feet); minimum, 3.6 second-feet Nov. 13.

1940-47: 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 

plus flood water passing over Premont weir; during summer,'flow consists largely of 

return water from irrigation. Discharge for low flows computed on basis of gageheight record for auxiliary gage.

Cooperation.- Records collected and prepared in cooperation with Division of Water 

Kesources, Department of Public Works, State of California.

Discharge, in seccnd-feet, water year October 1946 tc 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.

36

34

36

47

48

47

39

44

66

86

88

63

52

47

62

70

64

53

45

37

31

26

24

21

19

18

17

17

16

16

17

Nov.

18

19

14

12

10

8.4

7.7

8.6

5.7

5.9

4.7

4.7

4.2

4.7

5.7

6.2

6.6

7.3

7.7

1O

1O

10

15

17

19

24

30

29

26

24

-

Dec.

20

17

15

15

15

19

31

83

581

862

543

327

228

160

117

90

72

57

46

36

31

27

23

21

21

21

20

18

17

17

16

 Jan.

16

15

14

13

13

13

13

16

15

14

13

11

11

11

11

10

11

11

11

11

11

11

11

10

10

10

10

10

11

10

10

Feb.

10

13

14

16

15

13

13

12

11

12

14

23

88

308

1,030

1,260

1,190

1,050

927

716

526

415

34O

269

120

81

63

50

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

 arch. .....................................

April ......................................

May........................................

June .......................................

July............. ..........................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

42

37

45

133

1,140

927

748

634

550

476

386

492

581

543

492

462

420

340

269

274

271

261

249

233

166

92

64

77

109

109

105

Apr.

126

192

249

254

259

277

308

290

206

198

209

176

129

99

88

63

48

38

32

29

26

26

23

21

21

20

21

22

22

64

Seccndfoot-days

1.2S6

375.1

3,566

492,497.1

367

9,099

10,727

3,535

1,480

774

1; 592

1,387

1,827

36,015.1

May

57

51

44

31

22

a20

a20

22

26

38

61

6S

62

47

33

25

21

23

26

34

48

60

72

76

83

80

65

62

64

71

68

Maximum

88

30

862

74,600

16

1,260

1,140

308

83

75

68

56

72

1,260

June

74

75

61

45

36

28

25

24

25

25

26

26

25

25

22

820

al8

hlS

al6

ais

ais

al4

h!3

h!2

hll

hll

h!3

15

19

24

Minimum

16

4.!

15

4.J

10

10

37

20

20

11

32

37

34

4.2

July

32

41

48

55

58

63

66

66

68

67

66

61

54

50

49

49

53

56

58

56

. 51

48

45

44

42

41

42

42

41

40

40

Aug.

40

41

42

43

43

41

39

40

41

40

40

39

37

38

38

40

40

40

45

47

46

47

51

52

51

52

53

55

56

56

54

Mean

41.5

12.5

115

1,349

11.8

325

346

118

47.7

25.8

51.4

44.7

60.9

98.7

Sept.

54

54

55

58

61

62

59

58

60

64

68

69

71

72

72

70

72

72

72

71

69

66

63

59

56

54

49

44

39

34

Runoff in 

acre- feet

2,550

744

7,070

976,900

728

18,050

21,280

7,010

2,940

1,540

3,160

2,750

3,620

71,440

a No gage-height record; discharge Interpolated, 

h Computed from staff-gage reading.
COLUSA AND YOLO BASINS 389

Clear Lake at Lakeport, Calif.

Location.- Water-stage recorder, lat. 39°03', long. 122°55', in SE£ sec. 24, T. 14 N.,

 H. 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. Prior to July 8, 1947, 

staff gage at same site and datum'.

Drainage area.- 528 square miles, including water surface of Lake (65 square miles). 

Records available.- 1874-1900 (incomplete) and January 1913 to September 1947.

Extremes.- Maximum gage height observed during year, 3.40 feet Apr. 27-29; minimum

 oDserved, 0.15 foot Nov. 18.

1913-47: 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.- Gage-height record furnished by Clear Lake Water Co.

Gage height at 12 m., In 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

25

27

28

29

30

31

Oct.

0.57

.55

.55

.55

.50

.50

.48

.48

.48

.45

.45

.45

.45

.45

.45

.45

.45

.40

.40

.40

.40

.40

.40

.40

.40

.35

.35

.35

.35

.35

.30

Nov.

0.30

.30

.30

.30

.30

.28

.28

.28

.28

.28

..?8

.28

.25

.25

.20

.18

.18

.15

.22

.22

.40

.40

.40

.45

.48

.48

.48

.48

Dec.

0.48

.48

_

-

_

_

_

_

.58

.58

.58

.58

.58

.58

.58

.60

.60

.60

.60

.60

.60

.60

.60

.60

.60

.60

.60

.60

.60

.65

Jan.

0.65

.65

.65

.65

.65

.65

.65

.65

.65

.65

.70

.70

.70

.70

.72

.72

.72

.72

.75

.75

.75

.75

.75

.75

.75

.75

.75

.77

.77

.77

.77

Feb.

0.77

.77

.77

.77

.77

.77

.80

.80

.80

.80

.82

1.25

1.50

1.60

1.60

1.65

1.70

1.70

1.70

1.70

1.75

1.75

1.75

1.75

1.75

1.80

1.80

1.80

_

_

-

Mar.

1.80

1.80

1.85

2.20

2.20

2.40

2.40

2.40

2.40

2.50

2.65

2.65

2.85

2.85

2.85

2.85

2.90

2.90

2.90

2.90

2.90

2.90

2.90

2.90

2.90

2.90

2.95

2.95

2.95

3.00

3.10

Apr.

3.20

3.20

3.20

3.25

3.25

3.25

3.25

3.30

 3.30

3.30

3.30

3.30

3.30

3.30

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.35

3.40

3.40

3.40

3.38

-

Hay

3.38

3.38

3.38

3.38

3.32

3.28

_

_

3.20

3.20

3.25

3.15

3.05

3.00

3.00

2.95

_

3.00

3.00

2.95

2.95

2.95

2.95

2.90

2.85

2.80

2.75

2.75

2.75

2.70

2.67

June

2.60

2.58

2.58

2.58

2.58

2.58

- -

2.60

2.60

-

2.60

2.60

2.58

2.58

2.58

2.50

2.50

2.45

2.40

-

_

2.30

2.30

2.30

2.25

2.20

2.20

2.10

i.10

2.00

-

July

1.95

1.95

1.95

1.90

1.90

1.90

1.90

1.90

1.80

1.80

1.80

1.75

1.66

1.56

1.58

1.55

1.51

1.48

1.46

1.43

1.40

1.37

1.35

1.32

1.29

1.26

1.24

1.22

1.21

1.19

1.17

Aug.

1.15

1.13

1.11

1.10

1.08

1.06

1.03

1.01

1.00

.99

.97

.96

.94

.92

.91

.89

.87

.85

.83

.7«

.76

.75

.73

.71

.68

.66

.64

.62

.61

.61

.61

Sept.

0.60

.58

.56

.55

.54

.52

.50

.48

.46

.44

.42

.40

.38

.37

.36

.35

.32

.29

.27

.24

.23

.22

.21

.21

.21

.20

.19

.19

.18

.16

~

854211 O - 49 - 26
390 COLOSA AND YOLO BASINS

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., !?oO 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 Clear Lake (65 square miles). 

Records available.- May 1944 to September 1947.

Extremes (regulated).- Maximum daily discharge during year, 262 second-feet July 11 (gage 

neignt, a.ae reet); minimum not determined.

1944-47: 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 secondfoot.

Remarks.- Records good except those for periods of fragmentary, or no gage-height record, 

wnicn are fair. Flow completely controlled by Clear Lake.

Rating table, water-year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

0.5 2.9 1.2 14 2.0 57

.6 3.8 1.4 1

.7 5.0 1.5 2

.8 6.5 1.6 2

.9 8.2 1.7 3

3 2.3 90

5 2.6 133

7 2.9 185

5 3.2 244

1.0 10 1.8 40 3.5 314

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

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

38

36

28

20

19

19

19

17

14

14

14

14

14

13

13

13

13

13

14

13

13

10

5.9

5.8

f4.4

6.0

f4.2

5.8

5.8

f4.2

f4.1

Nov.

f5.0

f4.1

4.9

f4.2

f4.2

f3.9

f3.8

f3.6

f3.4

f3.8

f3.6

f3.6

f3.6

f3.7

f3.7

f3.6

f4.2

f4.0

f4.7

5.2

f2.9 5.0-

4.6

4.2

4.2

4.2

f3.5

f2.9

fS.O

fS.S

-

Dec.

4.O

4.0

4.0

, a4.O

4.0

f3.2

3.9

3.9

3.6

3.6

f2.9

3.6

3.6 '

3.6

3.6

3.6

3.7

3.6

3.6

Jan.

3.4

3.2

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.2

3.4

3.6

3.6

3.4

3.4

3.4

3.4

3.4

3.4

3.6

3.8

3.8

3.8

3.7

3.7

3.7

3.7

3.6

3.6

3.7

3.7

Feb.

3.8

3.8

3.8

3.8

3.8

3.7

3.7

3.7

3.8

3.7

4.3

4.3

3.6

3.6

3.7

3.8

3.6

3.6

3.7

3.7

3.6

3.6

3.6

3.6

3.6

3.8

3.8

3.8

_

_

-

Hontn

October. ...................................

November. ..................................

Decsmber. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

llaroh. .....................................

April ............ .........................

UAW Hay. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

3.8

3.8

4.2

4.2

4.2

4.2

4.3

4.3

4.0

4.0

4.2

4.O

4.3

4.3

4.3

4.3

4.3

4.3

4.3

3.9

3.7

4.4

4.4

4.4

4.4

4.4

4.5

4.5

4.6

4.6

4.6

Apr.

1

12

12

Second1 foot-days

427.2

118.8

118.0

104,962.5

109.0

104.9

131.7

462.5

5,214

4,630

4,512.1

169.2

134.8

15,932.2

.8

.8

.9

.9

.8

.6

.8

.8

.8

.8

.9

.9

.O

.9

.9

5.2

5.3

5.3

5.3

5.3

5.4

5.3

7.1

8.0

7.7

7.2

6.8

re

JQ 0

Hay

135

155

155

162

171

169

169

169

155

145

145

145

145

145

120

160

162

162

162

169

176

187

203

212

235

240

231

192

158

140

140

Maximum

38

5.2

4.0

2,050

3.8

4.3

4.6

120

240

218

262

6.8

4.8

262

June

140

133

122

133

152

152

152

143

130

128

128

135

145

145

147

165

162

135

111

120.

133

150

169

109

218

818

809

190

183

183

-

Minimum

4.1

2.9

2.9

'

3.2

3.6

3.7

4.6

120

111

5.9

4.4

3.2

2.9

July

192

203

216

207

194

198

209

240

255

259

262

255

251

251

244

233

203

155

113

loo

8.5

6.2

6.2

6.0

5.9

6.2

6.4

6.5

6.7

6.7

6.6

Aug.

6.8

6.7

6.7

6.7

6.7

6.5

6.4

6.4

6.2

5.9

5.9

5.8

5.4

5.3

5.3

5.3

5.2

5.2

5.2

4.8

4.4

4.4

4.4

4.5

4.5

4.6

4.8

4.8

4.8

4.8

4.8

Sept.

4.8

4. a

4.8

a4 v8

a4.8

a4.8

a4.8

a4.8

a4.8

4.8

4.8

4.8

4.8

4.8

4.8

4.8

4.6

4.5

4.4

4.4

4.3

4.3

4.3

4.2

4.0

3.9

3.9

4.0

fS.2

4.0

-

..^ Runoff in * " aore-fMt

13.8 847

3.96 236

3.81 254

288 208,200

3.52 216

3.75 208

4.25 261

15.4 917

168 10,340

154 9,180

139 8,550

5.46 336

4.49 267

43.6 31,590

a No gage-helghtr record; discharge computed on basis of recorded range in stage.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
COLOSA AND YOLO BASIHS 391

Cache Creek near Capay, Calif.

Location.- Water-stage recorder, lat. 38°43'40", long. 122°06'15", in SE^ sec. 8, T. 10 

H., 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 1947.

Extremes.- Maximum discharge during year, 5,100 second-feet Feb. 12 (gage height, 8.42 

reet>; minimum, 2.2 second-feet Sept. 11, 12, 16.

1942-47: 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, that of Sept. 16, 1947.

Remarks.- Records good. Plow regulated by Clear Lake (see p. 389). 

station for irrigation. Many diversions above

Rating tables, water year 1946-47 (gage height, In feet, 

and discharge, in second-feet)

Oct. 1 to Mar. 2 Mar. 3 to Sept. 30

1.7 7.0 2.6 14S 1.65

1.8 14 3.0 264 1.7

1.9 23 3.5 436 1.75

2.0 34 4.0 632 1.8

2.1 48 4.5 925 1.85

2.2 64 5.0 1,280 1.9

2.4 102 5.9 2,090 1.95

1.4 2.0 30 3.5 436

2.9 2.1 44 4.0 632

5.7 2.2 61 4.5 870

9.3 2.4 101 5.0 1,180

13 2.6 148 5.5 1,560

IS 2.9 232 6.0 2,000

24 3.2 330

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.

69

59

54

48

42

34

31

27

26

24

22

21

20

19

19

19

19

19

19

18

18

18

IS

18

18

16

15

14

13

13

13

Nov.

13

12

13

13

13

13

12

10

10

10

10

11

11

11

11

12

12

13

18

28

27

27 2is

223

104

. 69

53

44

38

33

-

Dec.

31

30

31

106

404

599

492

248

alSO

al40

a!20

alOO

aS5

a75

68

62

58

54

53

50

47

45

44

42

45

48

48

45

44

41

40

Jan.

38

37

37

35

34

33

34

34

33

32

32

31

32

32

32

31

31

31

31

31

30

30

30

3D

30

28

28

32

38

44

41

Feb.

40

38

38

38

37

38

38

38

44

68

a200

82,000

al,500

a800

371

277

340

251

202

171

153

138

124

115

109

102

98

96

_

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January

February ...................................

March. .....................................

April............. .........................

 fty............................. ...........

June. ......................................

July.......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

98

213

1,920

1,580

698

491

386

323

280

479

720

487

389

327

283

251

226

205

, 188

171

158

148

141

134

124

119

117

143

166

421

368

Apr.

Secondfoe t-days

783

1,092

3,475

147,965

1,022

7,464

11,754

3,967

5,575

4,513

4,373.1

103.1

75.3

44,196.5

274

232

277

258

214

194

177

164

156

146

136

124

115

110

106

101

97

93

88

86

82

80

76

72

70

69

65

63

91

151

May

153

164

177

180

185

191

191

194

194

174

166

169

166

164

164

148

171

169

166

164

169

174

182

196

205

229

238

232

191

161

148

Maximum

69

223

599

3,630

44

2,000

' 1,920

277

0«0 COO

199

251

6.3

2.9

2,000

June

148

148

141

131

141

156

169

180

164

148

138

134

138

143

143

143

156

151

131

106

108

119

131

146

177

196

199

188

174

166

-

Minimum

13

10

30

10

28

37

98

63

148

106

7.0

2.5

2.2

2.2

July

164:

171

191

202

191

180

185

199

229

238

248

251

242

235

235

229

217

188

151

122

99

69

37

19

19

15

12

11

9.3

7.8

7.0

Aug.

6.3

5.7

5.0

4.4

4.4

3.8

3.8

3.3

3.3

3.3

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.5

2.5

2.5

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

Sept.

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.9

2.5

2.2

2.2

2.5

2.5

2.5

2.2

2.5

2.9

2.9

2.5

E.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

u_,_ Runoff in 116811 acre-feet

25 3 X 550

36 ! 4 z', 170

112 6,890

405 293,500

33.0 2,030

237 14,800

579 23,310

132 7,870

1 JLOU Of\ .UjUDU 1 1 AflA 

ISO 8,950

141 8,670

3.33 204

2.51 149

121 87,650

a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for station at Yolo.
392 COLUSA AND YOLO BASINS 

Cache Creek at Yolo, Calif.

Location.- Water-stage recorder, lat. 38°43'3011 , long. 121°48'25", in Rio Jesus Maria 

urant, 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.- 1,150 square miles.

Records available.- January 1903 to September 1947.

Average discharge.- 44 years, 521 second-feet.

Extremes.- Maximum discharge durihg year, 4,160 second-feet Feb. 12 (gage height, 8.45 

reet); no flow for several months.

1903-47: 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 (see p. 389).

Rating tables, vater year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Mar. 3 Mar. 4 to Sept. SO

1.74 

1.6

1.9

2.0

2.1

2.2

0

3.5

16

33

56

84

2.3

2.4

2.6 

2.8 

3.0 

3.4

117

154

235

325

425

630

3.8 

4.2 

4.6

5.0 

5.5

860

1,100

1,360

1,620

1,970

1.3

1.35

1.4

1.45

1.5

1.6

0.1

1.0

2.8

5.4

9.2

19

1.7

1.8 

2.0 

2.2 

2.4 

2.7

33

50

94

151

220

340

3.0 

3.5

4.0 

4.5 

5.0 

5.4

472

715

1,000

1,300

1,650

1,930

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

29

30

31

Oct. Nov. Dec.

0

0

0

0

0

175

417

244

139

87

49

35

24

19

16

12

4.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

 Jan. Feb.

0

0

0

0

0

0

0

0

0

0

0

1,520

1,930

633

330

197

170

143

78

59

40

30

21

14

. 8.8

4.4

2.6

1.9

-

-

-

Month

October ....................................

November ...................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July.................................. .....

August. ....................................

September ..................................

Water year 1946-47 ......................

Peak discharge.- D

(1Z:50 a.m.; 3,090 s

Mar.

2.6

5.4

677

1,900

770

490

357

282

239

224

612

454

344

278

239

206

181

161

145

130

118

102

84

77

63

54

40

62

77

165

290

Apr.

224

171

164

195

168

145

124

110

99

92

87

75

64

50

27

8.0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

May

Sooono u«w4 «M*M foot-days "a*1"""

0 0

0 0

1,221.3 417

51,590.5 3,500

0 0

5,182.7 1,930

8,334.0 1,900

1,803.0 224

0 0

0 0

0 0

0 0

0 0

17,041.0 1,930

June

MininuB

0

0

0

0

0

0

2.6

0

0

0

0

0

0

0

July Aug. Sept.

u Runoff in *ean acre-feat

0 0

0 0

39.4 2,420

141 102,300

0 0

185 10,280

285 17,520

60.1 3,580

0 0

0 0

0 0

0 0

0 0

46.7 33,800

ec. 7 (9:30 a.m.) 495 sec. -ft.; Feb. 12 (8:30 p.m.) 4,160 sec. -ft.; Mar. 4 

eo.-ft.; Mar. 11 (7 tc 8 a.m.) 707 BBC. -ft.
COLUSA AMD YOLO BASMS 393

Kelsey Creek near Kelseyville, Calif.

Location.- Water-stage recorder, lat. 38°55'45", long. 122 0 50'25", in SE£ sec. 34, T. 13 

N., K. 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 1947. Dfecember 1945 to September 1946 in 

unpuoiisnea reports of Bureau of Reclamation.

Extremes.- Maximum discharge during year, 2,320 second-feet Nov. 22 (gage height, 9.38 

reet); minimum, 0.9 second-foot Sept. 20, 21.

Remarks.- Records good except those for periods of doubtful or no gage-height record, 

which are fair. No storage or diversion above station.

Cooperation.- Six discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(ShiftIng-control method used Oct. 1 to Feb. 11)

O.4 

.5 

.6 

.7 

.8

1.0

0.7

2.2

4.5

7.5

11

20

1.2 

1.4 

1.6 

1.8 

2.0 

2.4

32

47

66

92

128

20S

2.8 296

3.5 464

4.3 672

5.3 950

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

17in

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.8

2.2

3.0

3.2

3.2

3.2

3.2

3.5

3.5

3.5

3.5

3.7

3.5

3.5

3.7

4.0

4.0

a4.4

4.8

4.8

4.8

5.1

4.8

4.5

4.5

4.2

4.2

4.5

4.8

4.8

4.8

Nov.

4.8

4.8

4.8

4.8

4.8

5.1

5.1

5.1

5.1

5.4

5.6

5.9

6.5

6.8

6.8

8.2

9.6

9.6

42

26

14

592

425

53

43

38

27

24

23

20

-

Dec.

19

18

48

216

142

255

112

79

55

43

36

32

27

26

24

22

21

19

19

18

17

16

16

16

16

16

15

15

14

13

13

Jan.

12

11

11

11

11

11

10

10

10

10

9.6

9.2

8.9

8.9

8.6

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.6

8.6

8.6

16

14

16

16

Feb.

13

11

11

11

10

10

9.6

9.6

87

68

277

946

249

136

91

106

81

62

52

45

40

36

33

30

29

28

27

26

_

-

-

Month

November. ..................................

December. ...................................

Calendar year ......................

March. .....................................

May........................................

September. .................................

Water year 1946-47 ......................

Mar.

65

164

792

316

188

130

97

79

99

301

154

114

86

72

62

54

49

44

40

37

34

33

32

30

28

27

27

76

264

267

164

Apr.

117

144

146

105

86

72

62

56

52

45

41

37

34

32

30

28

27

26

25

24

23

22

21

2O

19

18

17

17

17

16

-

Secondfoot-days

121.2

1,435.8

1,398

42.1

11,882.4

May

16

15

14

13

13

13

13

14

13

12

12

12

12

11

11

11

9.6

9.6

9.2

8.6

8.2

7.5

7.5

7.2

7.2

7.5

8.9

8.6

7.5

7.5

8.9

Maximum

592

255

_

2.0

946

June

11

11

9.6

9.2

10

12

20

26

16

13

11

9.6

8.9

8.2

7.5

7.2

7.2

6.8

5.9

5.6

5.4

5.1

4.8

4.5

4.2

4.2

4.5

4.5

4.2

4.0

-

Minimum

1.8

4.8

13

_

1.2

1.2

July

4.0

3.7

4.0

3.5

3.5

3.5

3.2

3.0

2.8

2.6

2.8

2.6

2.6

2.8

2.6

2.6

2.4

2.2

2.0

' d2

Aug.

\ dl.8

1.8

1.8

2.0

2.0

2.2

2.2

Mean

3.91

47.9

45.1

_

8.70

1.40

32.6

Sept.

2.0

1.8

1.6

1.5

1.3

1.3

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.3

1.2

1.2

1.3

1.3

1.2

1.2

;.2 1.2

1.3

1.3

1.3

1.3

1.5

1.5

1.3

1.5

-

Runoff in 

acre-feet

240

2,850

2,77O

_

84

23,580

Peak discharge.- Nov. 22 (8 p.m.) 2,320 sec.-ft. ; Feb. 11 (11 p.m.) 1,610 sec.-ft. ; Mar. 3 (7 a.m.) 

1,330 sec.-ft.

a No gage-height record; discharge Interpolated.

d Doubtful gage-height record; discharge computed on basis of records for Futah Creek near Quenoc 

and North Fork Cache Creek near Lover Lake.
394 COLUSA AND YOLO BASINS

North Pork Cache Creek near Lower Lake, Calif.

Location.- Water-stage recorder, lat. 39°01', long. 122°33', in NE£ sec. 31, T. 14 N.,

K. e 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 (revised). 

Kecoras available.- July 1930 to September 1947. 

Average aiscnargeT- 17 years, 173 second-feet. 

Extremes.- Maximum discharge during year, 3,310 second-feet Feb. 12 (gage height, 7.51

reet), minimum, 0.1 second-foot Oct. 1-3, 10-19.

1930-47: Maximum discharge, 20,000 second-feet Feb. 28, 1940 (gage height, 13.9

feet), by slope-area method and logarithmic plotting; no flow at times in each year

1930~36. 

Remarks.- Records good except those above 1,000 second-feet, which are fair. Several

small diversions above station.

Rating tables, water year 1946-47 (gage height, In feet, and 

discharge, In second-feet)

Oct. 1 to Feb. 12 Feb. 13 to Sept. 30

1.3 °-l 2.1 31 3.9 430 1.4 0.1 2.2 32 4.2 508 

1.4 .5 2.3 49 4.5 690 1.5 1.1 2.4 50 4.6 705 

1.5 1.5 2.6 85 5.0 940' 1.6 2.9 2.6 72 5.0 920 

1.6 2.8 2.9 133 5.6 1,310 1.7 5.3 2.8 102 5.4 1,170 

1.7 5.0 3.2 199 6.2 1,790 1.8 8.8 3.0 138 5.9 1,530 

1.9 16 3.5 284 1.9 14 3.4 224 

2.0 19 3.8 346 

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.

0.1

.1 

.1

.2 

.2

.2 

.2 

.2 

.2

.r

.1

.1 .1 .1 .1

.1 .1 .1 

.1

.2

.2 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Nov.

0.4 

.4 

.5 

.5 

.5

.6 

.7 

.9 

1.1 

1.3

1.5 

1.8 

2.0 

2.2 

2.2

2.2 

' 2.2 

2.4 

3.5 

3.0

2.4 

19 

322 

61 

31

21 

16 

14 

12 

12

Deo.

11 

11 

26 

306 

171

430 

183 

110 

78 

62

53 

47 

43 

38 

36

33 

30 

28 

26 

25

25 

23 

22 

22 

26

27 

24 

22 

21 

20 

20

Jan.

19 

17 

17 

16 

17

16 

15 

15 

15 

15

15 

15 

15 

15 

14

14 

13 

13 

13 

14

13 

13 

13 

13 

13

14 

14 

25 

25 

22 

21

Feb.

24 

22 

22 

23 

24

24 

23 

22 

37 

106

135 

1,720 

546 

277 

193

176 

174 

136 

118 

104

91 

82 

75 

70 

67

64 

61 

57

Month

Octo 

Neve 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augui 

Sept

Ha

her. ...................................

Bber......................... ...........

lendar year 1946 ......................

ary

1. .....................................

St. ....................................

amber. .................................

ter year 1946-47 ..............'........

Peak discharge.- Dec. 6 (10 a.m.) 654 sec

Mar.

76 

373 

1,520 

742 

430

302 

240 

205 

204 

797

497 

346 

26.8 

227 

196

172 

152 

136 

124

113

104 

97 

92 

35 

80

76 

76 

94 

127 

283 

212

Apr.

166 

164 

196 

160 

140

131 

116 

109 

106 

93

86 

79 

73 

70 

67

64 

30 

58 

57 

55

53 

50 

48 

46 

44

42 

41 

40 

40 

38

May

36 

33 

32 

30 

30

28 

28 

27 

27 

25

24 

24 

23 

23 

21

20 

18 

16 

16 

15

14 

12 

12 

11 

9.7

10 

11 

12 

11 

12 

12

Second- uovim, foot-days "a*i«n 

5.9 0.3 

540.3 322 

1,999 430

29,755.5 1,270

489 25 

4,473 1,720 

8,446 1,520 

2,495 196 

622.7 36 

302.7 24 

64.0 3.3 

23.7 1.1 

8.8 .3

19,470.1 1,720

June

13 

14 

13 

12 

13

15 

18 

22 

24 

21

16 

14 

12 

12 

9.2

8.2 

7.2 

6.6 

6.2 

5.3

4.7 

4.4 

4.4 

4.2 

4.2

4.0 

4.0 

4.0 

3.8 

3.5

Minimum

0.1 

.4

11

.1

13 

22 

76 

38 

9.7 

3.E 

1.3 

.6 

.1

.]

July

3.3 

3.1 

3.1 

3.1 

3.1

3.1 

2.9 

2.9 

2.7 

2.7

2.7 

2.7 

2.5 

2.3 

S.3

2.3 

1.9 

1.7 

1.5 

1.4

1.2 

1.2 

1.2 

1.2

1.1

1.1 

1.2 

1.2 

1.1 

1.1 

1.1

Aug.

1.1 

1.1 

1.1 

1.1 

.9

.8 

.9 

.9 

.9 

.9

.8 

.8 

.8 

.8 

.7

.7 

.3 

.6

;e

.6

.7 

.8 

.7 

.6 

.6

.6 

.6 

.6 

.3 

.6 

.6

Sept.

0.6 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4

.3

.2 

.2 

.2 

.2 

.2

.2

.2 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

 .,,._ Runoff in *ean acre-feet

0.19 12 

18.0 1,070 

34.5 3,930

81.5 59,000

15.8 970 

160 8,870 

272 16,750 

83.2 4,950 

20.1 1,240 

10.1 600 

2.06 127 

.76 47 

.29 17

53.3 38,610

-ft.j ?eb. 12 (2 a.m.) 3,310 sec. -ft.; Mar. 3 (8:30 a.m.

3,020 sec.-ft.; Mar. 10 (9:30 a.m.) 1,160 aec.-ft.
COLUSA AND YOLO BASINS 395

"Putah Creek near Guenoc, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 122°31', In sec. 22, T. 11 N., R.

 6 W., just upstream from dam site and 3.5 miles downstream from highway bridge at 

Guenoc. Datum of gage Is 913.4 feet above mean sea level (river-profile survey). 

Drainage area.- 112 square miles.

Records avaliaDle.- February 19Q4 to July 1906, July 1930 to September 1947. 

Average aiscnargeT- 17 years (1930-47), 189 second-feet. 

Extremes.- Maximum discharge during year, 7,100 second-feet Feb. 12 (gage height, 11.8

 feet, from floodmarks); minimum, 2.0 second-feet Oct. 9-14.

1904-6, 1930-47: Maximum discharge observed, 24,600 second-feet Mar. 10, 1904

(gage height, 20.1 feet, datum then in use), from rating curve extended above 14,500

second-feet; minimum, 0.6 second-foot Sept. 30, Oct. 4, 1932. 

Remarks.- Records excellent except those for Dec. 9-17, Dec. 26 to Jan. 3, Feb. 17-28,

 Mar. 18-21, which are good, and those for Feb. 11-14, Mar. 1-4, which are fair. Small 

diversions above station.

Rating tables, water year 1946-47 (gage height, In feet, and discharge,

In second-feet) 

(Shifting-control method used Nov. 19-22)

Oct. 1 to Nov. 22 Nov. 23 to Sept. 30

1.1 2.1 1.7 18 3.0 192 1.3 2.2 2.3 61 6.4 1,440 

1.2 3.6 1.8 23 3.5 300 1.4 3.7 2.6 100 7.0 1,870 

1.3 5.6 1.9 30 4.0 428 1.5 6.2 3.0 171 8.0 2,680 

1.4 7.8 2.0 40 4.5 572 1.6 9.5 3.5 276 9.0 3,630 

1.5 10 2.3 77 5.0 750 1.7 13 4.0 404 10.0 4,780 

1.6 14 2.6 122 1.9 24 4.5 566 11.5 6,680 

2.0 31 S.O 750 

2.1 40 5.6 1,010

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.

2.7 

2.8 

3.0 

2.7 

2.6

2.6 

2.6 

2.4 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.6 

2.4 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.4 

2.4

Nov.

2.2 

2.2 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.6 

2.4

2.4 

2.4

2.7 

63 

50

13 

1,150 

L,160 

183 

96

66 

51 

41 

35 

32

Dec.

29 

28 

32 

643 

529

729 

308 

291 

220 

175

140 

115 

100 

90 

80

70 

65 

59 

54 

52

49 

47 

44 

43 

47

45 

43 

40 

38 

36 

34

Jan.

33 

32 

30 

30 

30

29 

28 

28 

27 

27

26 

26 

26 

25 

24

23 

23 

23 

23 

23

22 

22 

22 

22 

20

20 

21 

27 

30 

30 

37

Feb.

33 

30 

29 

2S 

27

26 

25 

25 

68 

147

500 

6,500 

2,500 

800 

320

340 

280 

225 

180 

150

135 

120 

105 

95 

90

85 

80 

80

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Haro 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber..... ...............................

iber. ...................................

lendar year 1946 

ary

1. .....................................

St.................. ...................

ember. .................................

ter year 1946-47 ......................

Mar.

75 

500 

2,700 

1,500 

583

396 

305 

258 

255 

1,000

495 

345 

276 

237 

208

183 

165 

150 

140 

130

120 

108 

102 

96 

92

87 

85 

180 

637 

952 

498

Apr.

330 

338 

365 

267 

231

208 

181 

167 

156 

139

127 

116 

106 

100 

94

90 

85 

82 

77 

72

69 

66 

62 

60 

57

54 

52 

52 

51 

49

May

46 

40 

38 

37 

35

34 

34 

34 

33 

31

30 

29 

29 

27 

25

23 

22 

22 

20 

19

18 

18 

17 

16 

16

16 

17 

16 

16 

16 

16

June

17 

17 

16 

16 

16

18 

60 

144 

71 

48

37 

30 

27 

23 

20

19 

18 

17 

16 

14

13 

12 

12 

11 

10

10 

10 

10 

9.5 

9.5

fooWays "axi"uln *inimat

74.4 3.0 2.2 

2,983.3 1,160 2.2 

4,275 729 28

28,936.3 1,160 2.2

809 37 20 

13,023 6,500 25 

12,858 2,700 75 

3,903 365 49 

790 46 16 

751.0 144 9.5 

218.2 9.2 5.2 

127.7 5.2 3.4 

87.2 3.4 2.6

39,899.8 6,500 2.2

July

9.2 

9.2 

8.8 

8.8 

8.5

8.5 

8.5 

8.2 

7.8 

7.8

7.8 

7.8 

7.8 

7.5 

7.5

7.2 

6.9 

6.5 

6.2 

6.2

5.9 

5.9 

5.9 

5.6 

5.6

5.6 

5.6 

5.6 

5.4 

5.2 

5.2

Aug.

5.2 

5.2 

5.2 

4.9 

4.6

4.6 

4.6 

4.4 

4.4 

4.4

4.4 

4.2 

4.2 

4.2 

3.9

3.9 

3.7 

3.7 

3.7 

3.9

3.9 

3.9 

3.7 

3.7 

3.7

3.7 

3.7 

3.7 

3.5 

3.5 

3.4

Sept.

3.4 

3.4 

3.2 

3.2 

3.0

2.9 

2.9 

2.9 

2.9 

3.0

3.0 

3.0 

2.9 

2.9 

2.9

2.9 

3.0 

3.0 

2.9 

2.9

2.9 

2.9 

2.7 

2.7 

2.7

2.7 

2.6 

2.6 

2.6 

2.6

 Runoff in Mean acre-feet

2.40 148 

99.4 5,920 

138 8,480

79.3 57,390

26.1 1,600 

465 25,830 

415 25,500 

130 7,740 

25.5 1,570 

25.0 1,490 

7.04 433 

4.12 253 

2.91 173

109 79,140

Peak discharge.- Nov. 22 (9:45 p.m.) 4,650 sec. -ft.; Dec. 4 (3:45 a.m.) 1,420 sec. -ft. j Feb. 12

Mar. 29 (8:30 p.m.) 2,290 Bee.-ft.

Note.- No gage-height record Dec. 9-17, Dec. 26 to Jan. 3, Feb. 11-14, Feb. 17 to Mar. 4, Mar. 18- 

21; discharge computed on basis of recorded range In stage, weather records, and records for station 

near Winters.
396 COLUSA AND YOLO BASINS

Putah Creek near Winters, Calif.

Location.- Water-stage recorder, lat. 38°31', long. 122°05< , in NE£ sec. 28, T. 8 N., R.

 aw., 6 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. 

Records available.- June 1930 to September 1947. 1905-31 at site at Winters, 6 miles

 downstream; records equivalent except for very low flows.

Average discharge.- 17 years (1930-47), 474 second-feet.

Extremes.- Maximum discharge during year, 14,800 second-feet Feb. 12 (gage height, i/.du

 1'eet): minimum, 0.8 second-foot Oct. 1. , , ^ nn _ 

1905-47: 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 slopearea 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.

Rating tables, water year 1946-47 (gage height. In feet, and discharge,

In second-feet) 

(Shifting-control method used Oct. 5 to Dec. 3)

Oct. 1 to Feb. 12 Feb. 13 to Sept. SO

3.3

3.4

3.5

3.6 

3.8 

4.0 

4.2 

4.4

0.8

2.1

3.9

6.0

11

19

27

38

4.7 

5.0 

5.4 

5.8 

6.4 

7.0 

7.5 

8.0

59 

87 

134 

194 

308 

450 

6OO 

790

9.0

10.0

11.0

12.0

13.0

14.0

15.3

1,300

1,940

2,750

3,820

5,310

7,110

9,760

3.3

3.4

3.5

3.6

3.7

3.8 

4.0

1.3

2.4

3.9

5.8

8.2

11

18

4.4

4.7 

5.0 

5.4 

5.8 

6.2

38

61

91

141

203

277

366

7.5

8.0

8.5

9.5

1O.O

11.0

12.0

620

800

1,000

1,230

1,800

2,600

3,800

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.

0.9

.9

1.3

2.5

3.2

3.2

3.5

4.7

4.3

3.5

3.5

3.9

4.3

4.5

4.7

5.2

5.4

5.4

5.8

5.4

5.2

5.4

5.4

5.0

4.7

4.3

4.7

5.2

5.6

5.6

6.0

Nov.

5.8

5.4

4.3

4.5

5.0

5.6

5.8

6.5

14

8.4

5.6

5.8

4.7

4.3

5.0

6.3

6.O

6.8

18

18

12

10

1,910

570

228

142

102

84

72

63

-

Dec.

57

50

48

393

981

1,560

875

495

408

288

228

1S8

160

142

126

114

105

96

89

83

79

75

72

70

70

72

72

66

63

61

58

Jan.

57

55

53

50

50

50

49

48

347

347

a46

a45

44

43

42

41

40

4O

39

39

39

39

38

38

37

37

37

44

48

50

52

Feb.

53

56

54

52

50

4S

46

45

50

67

183

9,560

3,770

1,250

776

567

606

457

368

311

271

242

218

200

184

173

165

156

_

_

-

Month

October. ...................................

November . ..................................

December. ...................................

Calendar year 1946 ......................

January

February. ..................................

Maroh. .....................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Peak discharge.- Nc

(5 p.m.; 14,8OO seo.-

Mar.

154

594

3,970

3,110

1,320

864

638

513

454

1,490

1,29O

812

6O2

493

436

385

343

309

281

259

240

224

208

197

185

179

173

224

364

1,410

1,100

Apr.

Secondfoot-days

133.2

3,338.8

7,244

52,964.2

1,384

19,978

22,821

7,882

1,258.2

756.2

187.4

120.6

123.5

65,226.9

708

564

860

634

485

42O

.371

334

307

281

255

231

212

200

189

176

164

154

146

138

130

123

117

110

104

99

95

93

92

90

-

May

86

79

74

68

64

60

58 .

56

55

53

51

48

47

45

44

41

39

37

34

32

30

27

25

23

17

12

12

12

8.0

8.2

13

Maximum

6.0

1,910

1,560

2,070

57

9,560

3,970

860

86

96

7.7

7.2

5.4

9,450

June

17

14

14

14

14

16

21

24

96

94

66

51

42

36

31

27

25

22

18

17

13

11

9.9

9.6

9.4

9.4

9.1

8.8

8.5

8.5

-

Minimum

0.9

4.3

48

.9

37

45

154

90

8.0

8.5

2.8

2.3

3.6

.9

July

7.5

7.0

6.8

6.5

6.5

6.5

7.7

6.8

5.8

5.8

5.8

5.6

5.4

6.8

6.3

5.4

5.2

5.8

6.3

3.9

4.3

6.3

6.8

6.5

6.3

6.3

6.5

6.8

5.8

5.6

2.8

Aug.

2.6

2.6

2.7

3.0

2.8

2.7

2.6

2.6

2.4

2.6

2.6

2.4

2.3

2.3

2.4

2.4

2.4

2.4

2.4

2.8

5.2

7.2

7.2

6.5

5.6

6.0

6.8

6.5

6.3

6.3

6.0

Sept.

5.4

5.4

4.7 4.7-

4.5

4.1

3.9

3.8

4.1

4.5

4.3

3.9

3.9

3.9

3.8

3.8

3.8

4.3

4.7

4.5

4.1

3.8

3. ff

3.8

3.6

3.6

3.6

3.8

3.6

3.8

-

 Runoff in *ean acre-feet

4.30 264

111 6,620

234 14,370

145 105,100

44.6 2,750

714 39,630

736 45,260

263 15,630

40.6 2,50O

25,2 1,500

6.05 372

3.89 239

4.12 245

179 129, 4OO

v. 23 (10:30 a.m.) 4,650 sec. -ft.} Dec. 6 (7 p.m.) 2.01O sec. -ft. i Feb. 12 

ft.; Mar. 3 (6 p.m.) 8,980 sec. -ft.: Mar. 1O (4 p.m.) 2,320 sec. -ft.; Mar. 30

(10 a.m.) 2,230 sec. -ft.

a No gage-height record; discharge computed on basis of recorded range In stage and records for 

station near Quenoc.
HAPA RIVEB BASIN 397

Napa River near St. Helena, Calif.

Location - Water-stage recorder, lat. 38°29'40", long. 122°25 I 50", in SE£ sec 32 T 8 N 

^,J> " 1-' °;2 file upstream from highway bridge, 1.3 miles northeast of Zinfandel,'and '

DrJ^gfg|a!!S83?i sJuarl'Sles/""11'6 °f ^ ^ 2°° feet (fr°m ^°* ^ »P». 

Keeoras available.- November 1929 to September 1932, November 1939 to September 1947 

Extremes.- Maximum discharge during year 2,890 second-feet Feb. 12 (gage height, 6 88 

reet;y no flow Sept. 23-30.

i/. e 9*9 '!?' I93f;47: ^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 August and September, which are fair Small 

diversions above station for irrigation. .

Rating tables, water year 1946-47 (gage height, in .feet, and discharge,

in second-feet) 

(Shifting-control methoB used Aug. 16 to Sept. 3d)

Oct. 1 to Hoy. Hov. 22 to Sept. SO

0.5 0.1 l.Z 27 2.8 377 O.4 O.I l.O 1O 1.7 9O 

.6 .6 1.3 36 3.2 536 .5 .3 1.1 17 1.9 126 

.7- 1.5 1.4 47 4.0 940 .6 .8 1.2 24 2.1 170 

.8 3.3 1.5 60 5.0 1,540 .7 1.5 1.3 34 2.3 224 

.9 7.0 1.7 92 5.3 1,740 .8 3.2 1.4 45 

1.0 12 2.0 153 .9 6.2 1.5 58 

1-1 19 2.4 253 Mote.- Same as preceding table above 

above 2.5 feet. 

Discharge , in eeoond-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.

0.1.1

.3

.5 

.5

.5 

.5 

.5 

.5

.5

.4 

.4 

.4

.5

.5

.6 

.6 

.6 

.6 

.6

.6 

.7 

.7 

.6 

.6

.6 

.6 

.6 

.6 

.7 

.7

Hov.

0.7 

.7 

.7 

.7 

.7

.8 

.8 

.8 

.8 

.9

1.0 

1.0 

1.0 

1.1 

1.1

1.1 

1.1 

1.2 

1.8 

IS

7.6 

52 

2O9 

22 

8.6

5.5 

3.9 

3.7 

3.0 

2.8

Dec.

2.8 

2.8 

4.6 

168 

287

286 

104 

102 

63 

42

30 

23 

18 

16 

16

15 

14 

12 

11 

10

10 

9.9 

9.4 

9.4 

9.4

9.0 

9.0 

8.6 

8.6 

9.0 

8.6

Jan.

8.6 

8.1 

7.7 

7.7 

7.7

8.1 

8.1 

8.1 

7.7 

7.3

7.3 

7.7 

7.7 

7.3 

7.3

7.0 

7.0 

7.O 

7.O 

7.0

7.O 

7.0 

7.0 

6.6 

6.6

7.0 

7.O 

12 

9.4 

8.6 

9.4

Feb.

.7 

.7 

.3 

.3 

.3

7.3 

7.3 

7.3 

9.9 

17

80 

1,720 

428 

210 

105

93 

35 

64 

54 

49

43 

38 

36 

33 

32

30 

27 

26

Month

Ooto 

Hove: 

Deoe:

Ca

Janu 

Febr 

Ifaro 

Apri 

Hay.

June 

July 

Augu 

Sept

ffa

ber. ...................................

nber. ...................................

lendar year 1946 ......................

ary

1. .....................................

St................. .....................

ember. .................................

ter year 1946-47 ......................

Mar.

43

113 

584 

317 

178

104 

85 

76 

127 

737

300 

163 

122 

97 

84

74 

64 

58 

54 

50

46 

44

40 

38 

37

36 

35 

60 

93 

163 

107

Apr.

82 

117 

151 

100 

82

71 

61 

57 

54 

48

42 

37 

34 

32 

29

27 

25 

24 

24 

23

22 

22 

21

20 

18

17 

17 

17 

17 

16

May

15 

14 

14 

15 

15

14 

14 

13 

12 

12

9 

9 

9 

9

9

9 

8 

6 

6 

5

6 

6 

6 

6 

6

6 

6

6 

5 

5

4

Seoond- u=»imi.« foot-days «»*iw»

16.2 0.7 

354.1 209 

1,328.1 287

10,977.9 720

239.0 12 

3,239.1 1,720 

4,134 737 

1,307 151 

288.4 15 

124.0 10 

29.7 1.5 

22.3 1.0 

7.3 .7

11,089.2 1,720

Peak discharge.- Feb. 12 (11 a.m.) 2,89O sec. -ft.; Mar. 3 (1O a.i

9 

9 

9

4 

0

O 

1 

6 

6 

8

2

6 

6 

6 

2

2 

2 

2

8

1 

5

June

6.6 

5.1 

5.8 

4.8 

4.2

5.8 

9.0 

10 

7.O 

5.8

5.8 

5.8 

4.5 

4.2 

4.8

2.8 

3.0 

2.8 

2.6 

2.4

2.1 

2.8 

2.8 

2.4 

2.4

2.2 

2.2 

1.5 

1.5 

1.3

Minimum

0.1 

.7 

2.8

.1

6.6 

7.3 

35 

16 

4.5 

1.3 

.6 

.3 

O

O

July

1.4 

1.0 

1.1 

1.1 

1.5

1.3 

1.3 

1.1 

1.1 

1.0

1.1 

I'.l 

.8 

.8 

.8

-8 

.8 

1.1 

.8 

.8

.9 

.9 

.9 

.8 

.8

.8 

.8 

.7 

.6 

.7 

1.0

Aug.

1.0 

.7 

1.0 

.7 

1.0

1.0 

1.0 

.6 

.5 

1.0

.6 

.6 

.6 

1.0 

.5

.9 

.8 

.6 

.5 

.4

.3 

.4

.8 

.8 

.4

.6 

.8 

.8 

.8 

.8 

.8

Sept.

0.7 

.7 

.6 

.6 

.6

.6 

.5 

.4 

.4

.3

.3 

.2 

.2 

.2 

.2

.2

.1 

.1 

.1 

.1

.1

.1

ao 

ao 

ao

ao 

ao 

aO 

ao 

ao

 Runoff in wan acre-feet

0.52 32 

11.8 702 

42.8 2,630

30.1 2J., 780

7.71 474 

116 6,420 

133 8,200 

43.6 2,590 

9.30 572 

4.13 246 

.96 59 

.72 44 

.24 14

30.4 '21,980

i.) 929 sec. -ft.; Mar. 10 (7 a.m.)

968 sec.-ft.

a Ho gage-height record; discharge computed on basis of trend of recorder graph.
398 NAPA RIVER BASIN

Conn Creek near St. Helena, Calif.

Location.- Water-stage recorder, lat. 38°29', long. 122°24', In NVf£ 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 mag).

Drainage area.- 52.0 square miles.

Records available.- November 1929 to September 1947.

Average discharge.- 15 years (1930-45), prior to construction of Conn Valley Dam, 34.7 

secona-reet.

Extremes.- Maximum discharge during year, 20 second-feet (regulated) Feb. 12 (gage height, 

1.84 reet); no flow for several months.

1930-47: Maximum discharge, 7,700 second-feet Feb. 27, 1940 (gage height, 11.80 

feet), from rating curve extended above 6,000 second-feet; np flow for several months 

each year.

Remarks.- Records good. Flow regulated by storage and small diversions. Storage in 

uonn Valley Reservoir (capacity, 31,000 acre-feet) began in December 1945; contents 

on Sept. 30, 1946, was 15,000 acre-feet and on Sept. 30, 1947, was 17,100 acre-feet.

Rating table, water year 1946-47 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Mar. Z to Apr. 16, Sept. 27-3O)

1.35

1.4

1.45

1.5

1.55

0.1 

.1 

.2

1.6

1.65

1.7

1.75

2.5

4.5

7.3

11

Discharge, in second-feet, water year October 194C to September 1947

Day

1

2

3

4

6

7

8

9

10

11

12

14

15

16

17

18

21

22

23

24

25

26

27

28

29

30

Oct. Nov.

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

o

0

0

0

a. 5

a. 5

al.O

1.5

1.0

.2

0

0

0

0

.1

-

Dec.

0.4

.6

.9

1.2

5.6

10

9.5

9.5

9.5

9.5

9.5

6.9

2.8

2.8

2.8

2.5

2.5

2.5

2.2

1.9

2.2

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.2

.6

Jan.

0.1

O

.7

.9

1.0

1.3

1.3

1.3

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.5

1.0

.2

0

0

1.0

Feb.

1.5

1.5

1.3

1.3

1.3

1.5

1.5

1.5

1.9

3.2

4.3

11

6.7

8.7

8.0

8.7

8.0

8.0

8.0

7.3

6.1

6.1

6.1

6.1

3.4

.2

O

.5

_

-

Month

December. ...................................

Calendar year 1946 ......................

March....... ...............................

May. .......................................

September ..................................

Water year 1946-47 ......................

Mar.

2.8

4.O

S.7

7.3

6.7

6.7

7.3

6.7

7.3

7.3

6.7

6.7

6.7

6.7

6.7

6.7

S.O

8.0

8.0

8.0

7.3

7.3

6.7

4.5

4.5

2.8

.2

.3

0

1.5

5.6

Apr.

5.6

6.1

6.7

6.7

6.1

6.1

6.7

6.7

7.3

7.3

7.3

7.3

6.7

6.1

6.7

6.7

4.4

.6

4.5

5.0

5.6

5.6

5.6

S.O

3.6

1.2

1.0

.2

0

0

-

Secondfoot-days

118.1

772.5

18.5

766.8

May

o

o

0

0

0

0

0

0

0

0

o

0

o

0

o

0

0

o

o

o

0

0

o

0

o

.7

6.7

8.0

7.3

8.0

3.9

Maximum

10

13

8 0

6.1

11

June

0.8

.2

3.6

7.3

8.0

8.0

8.0

6.7

5.6

4.0

4.0

4.0

4.0

4.5

4.0

4.0

4.0

6.1

8.0

8.0

4.1

.1

0

O

0

o

0

o

0

oMinimum

.4

o

0

0

July Aug.

Mean

3.81

2.12

.62

2.10

Sept.

0

O

0

o

0

0

o

0

o

0

o

0

0

0

0

0

5.0

6.1

Runoff in 

acre-feet

234

1,530

37

1.520

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

nearby streams.
NOVATO CREEK BASIN 

Nova to Creek near Nova to, -Calif.

399

Location.- Water-stage recorder, lat. 38°07', long. 122C 36', in Novato Grant, 500 feet 

downstream from county road bridge and 1 mile west of U. S. Highway 101 in Novato, 

Marin County. Altitude of gage, about 45 feet (from topographic map).

Drainage area.- 16.9 square miles.

Records available.- October 1946 to September 1947.

Extremes.- Maximum discharge during year, 239 second-feet Mar. 3 (gage height, 3.20 feet); 

no flow for several months.

Remarks.- Records fair. No storage or diversion.

Discharge, in second-feet, water year October 1946 to September 1947

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.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0.4

.6

0

0

0

0

0

0

0

0

-

Dec.

0

0

.2

2.6

3.9

4.2

1.7

2.8

2.2

1.7

1.6

1.4

1.2

1.1

1.0

1.0

.9

.7

.6

.6

.6

.6

.6

1.2

1.2

.9

.8

.6

.8

.8

.6

Jan.

0.6

.5

.5

.4

.5

.5

.5

.5

.5

.5

.5

.6

.6

.5

.4

.4

.4

.4

.4

.5

.5

.5

.5

.4-

.4

.4

.5

2.0

1.1

.9

1.0

Feb.

0.8

.7

.6

.6

.6

.6

.6

.6

4.8

2.4

21

95

31

15

11

11

8.9

7.1

6.1

5.3

4.6

4.2

3.9

3.6

3.6

3.3

3.3

3.1

_

_

-

Month

December. ..................................

Calendar year ......................

April ......................................

May. .......................................

July. ......................................

September. .................................

Water year 1946-47 ......................

Mar.

5.8

6.1

63

26

16

11

9.9 9.9'

12

46

22

17

14

12

10

8.9

7.9

7.1

6.6

6.1

5.7

5.3

4.9

4.6

4.6

4.2

4.6

24

25

22

14

Apr.

11

21

20

12

11

10

8.9

8.4

8.4

6.6

5.7

4.9

3.9

3.9

3.6

3.3

3.1

3.1

2.8

2.8

2.6

2.6

2.4

2.4

2.4

2.2

2.2

2.0

1.9

1.7

-

Seoondfoot-days

38.1

_

23 3

0

952.8

May

1.4

1.2

1.2

.9

.8

1.1

1.2

1.2

1.1

1.1

1.0

1.0

1.0

.9

.8

.7

.6

.6

.5

.4

.4

.4

.4

.4

.4

.4

.6

.4

.4

.4

.4

Maximum

4.2

_

95

0

95

June

0.3

.4

.3

.3

.4

.6

1.1

1.0

.6

.3

.2

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

-

Minimum

0

_

0

o

July Aug.

Mean

1.23

_

CO

0

2.61

Sept.

Runoff in 

acre-feet

76

_

502

0

1,890
400 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 1947.

Extremes.- Maximum discharge during year, 4,710 second-feet Mar. 3 (gage height, 9.65 

feet); minimum, 32 second-feet (regulated) June 22.

1941-47: 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 (regulated) Dec. 13, 1943.

Remarks.- Records excellent. Diversions above station for irrigation. Plow greatly

 affected by inflow from Eel River through Potter Valley powerhouse (see p. 411).

Rating table, water year 1946-47 (gage height, 

in feet, and discharge, in second-feet)

1.1

1.2

1.3 

1.5

1.7 

2.0 

2.3 

2.6

104

136

178

3.O 

3.5 

4.0 

4.5

258

384

530

700

5.0 

6.0 

7.0 

7.5

905

1,390

2,000

2,400

Discharge, in second-feet, water year Ootober 1946 to September 1947

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

166

170

IBS

182

182

159

169

179

180

178

176

162

116

157

169

171

174

174

1.76

144

168

180

178

178

177

175

138

172

179

215

174

Nov.

173

ISO

138

167

138

137

138

126

134

124

129

135

135

134

133

136

133

148

227

250

224

500

339

234

217

226

223

221

223

219

Dec.

211

221

564

538

384

530

301

277

249

245

236

232

234

232

228

228

226

223

221

219

221

223

219

221

228

223

223

219

223

221

221

Jan.

206

221

221

221

221

221

223

223

223

221

221

223

223

188

184

185

186

182

184

185

186

177

168

167

140

138

152

247

198

297

260

Feb.

202

198

206

179

179

174

168

152

193

249

1.O8O

1,480

483

348

316

401

329

292

260

234

211

159

141

162

175

230

230

232

_

_

-

Month

October. ...................................

December ....................................

Calendar year 1946 ......................

January

September. ..................................

Water year 1946-47 ......................

Mar.

. 268

479

2,210

640

418

345

314

301

1,190

1.89O

570

434

371

337

314

222

299

287

282

275

265

263

258

247

243

243

243

245

265

353

282

Apr.

263

369

366

294

280

263

265

263

260

254

249

247

243

240

240

238

236

236

234

234

228

228

217

217

211

209

215

215

172

156

-

Secondfoot-days

5 3O3

8,241

86,516

6

7 542

2 734

4,656

71,484

May

88

79

76

73

79

79

91

78

80

100

69

71

78

74

76

59

79

69

62

7O

67

69

61

74

64

56

65

48

59

62

72

Maximum

215

500

564

3,380

297

369

13S

192

2,210

June

78

90

107

34

92

117

107

101

111

112

138

93

110

111

91

67

91

64

53

52

45

40

70

93

91

81

84

61

92

78

-

Minimum

211

9O

138

77

40

July

81

75

77

93

68

64

86

115

98

94

91

64

104

84

98

82

81

93

72

64

96

111

97

90

90

70

64

103

105

*15

109

Aug.

1OS

73

1O6

85

94

105

110

137

72

68

90

106

88

99

111

115

76

111

182

175

173

130

80

109

113

119

122

112

116

113

130

Mean

266

237

245

155

196

Sept.

109

104

128

124

123

85

77

125

130

122

173

172

172

145

173

161

156

164

178

178

192

192

187

180

183

191

182

189

183

178

-

Runoff in 

acre-feet

16,350

171,600

9,240

141,800

Peak discharge.-'Mar. 3 (4:30 a.m.) 4,710 see.-ft.; Mar. 1O (2:3O a.m.) 4,260 see.-ft.
RUSSIAN RIVER BASIN 401

Russian River near Hopland, Calif.

Location.- Water-stage recorder, lat. 39°01'35", long. 1230 07'45", In Ranoho 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 1947.

Extremes.- Maximum discharge during year, 10.400 second-feet Mar. 10 (gage height, 15.35 

reet); minimum, 59 second-feet (regulated) June 23, 24.

1939-47: 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 (regulated) Dec. 18, 1943.

Flood of December 1937 reached a stage of about 30.0 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.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

X

4

5

6

7

ft

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

2ft

29

30

31

Oct.

149

15S

172

175

178

189

145

175

175

175

175

165

152

125

152

138

165

168

175

175

149

178

178

178

178

175

175

145

168

196

182

NOT.

175.

17S

17S

142

165

142

142

136

131

134

125

131

134

156

134

136

138

139

200

265

254

1,070

1,560

481

351

307

284

273

261

257

-

Dec.

'246

246

393

1,810

SOS

1,290

700

558

447

381

343

 326

311

299

292

284

278

869

269

265

2S1

261

254

254

257

257

257

250

250

250

' 246

Jan.

246

242

246

246

246

246

246

 246

242

242

242

242

242

221

210

206

206

203

203

203

203

200

192

182

178

152

15S

203

368

624

624

Feb.

411

335

307

276

257

246

232

221

292

452

1,370

6,420

1,330

1,040

744

749

666

538

466

411

372

326

276

261

273

284

299

292

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

April ......................................

May. ........................................

July. ......................................

August

September. .................................

Water year 1946-47 ......................

Mar.

31S

880

5,460

2,540

1,400

98S

814

744

1,760

6,630

2,310

1,470

1,120

92S

790

683

605

585

555

525

500

4S2

468

445

42S

419

406

419

459

784

6S8

Apr.

565

630

946

672

600

550

505

486

472

445

423

406

388

375

366

354

346

338

330

322

319

312

301

294

290

284

280

277

264

237

-

Secondfoot-daye

5 213

12,610

153,954

4,557

118,957

May

211

169

150

143

133

126

124

126

124

122

122

108

104

100

98

96

90

92

92

90

32

32

79

79

36

79

75

77 '70

73

79

Maximum

1,310

8.7SO

187

6,630

June

86

90

102

100

94

106

119

115

111

115

133

115

 106

113

111

94

88

66

73

70

66

64

62

70

80

82

79

82

71

84

-

Minimum

125

246

97

92

62

July

79

77

73

80

84

75

70

82

90

86

86

88

75

92

86

38

82

34

90

79

77

92

98

90

88

90

80

79

102

106

106

Aug.

102

108

88

106

94

100

104

115

126

90

84

96

104

92

100

108

113

86

133

152

155

136

128

90

104

111

117

117

113

115

115

Mean

407

422

152

326

Sept.

128

104

117

124

122

126

94

92

124

128

145

164

164

167

145

164

157

160

167

172

177

IS?

182

179

172

179

177

179

184

177

-

Runoff in 

acre-feet

1 R 1 ftfi

25,010

305,400

38 970

24 550

5 450

9,040

236,000

Peak discharge.- Feb. 12 (5 a.m.) 9,830 sec.-ft.; Mar. 10 (7 a.m.) 10,40O sec.-ft.
402 RUSSIAN RIVER BASIN

Russian River near Healdsburg, Calif.

Location.- Water-stage recorder, lat. 38°36'45", long. 122°50'05", in SE$ sec. 22, T. 9

 N., R. 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 1947.

Extremes.- Maximum discharge during year, 19.300 second-feet Feb. 12 (gage height, 13.81

 reetj; minimum, 46 second-feet (regulated) June 27.

1909-47; 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, that of 

June 27, 1947.

Flood of December 1937 reached a stage of 30.8 feet, from floodmarks.

Remarks.- Records good except those for July 14 to Aug. 25, which are fair. Several small 

diversions above station for irrigation. Flow also affected by diversion into basin, 

see "Remarks" for East Fork Russia River near Calpella.

Rating tables, water year 1946-47 (gage height. In feet,

and discharge. In second-feet) 

(Backwater corrections applied July 14 to Sept. 3o)

Oct. 1 to Pet. 12 Feb. 13 to Sept. 50

1.6 105 3.5 990 9.0 7,7OO 1.2 60 2.3 340 6.0 3,56O

1.8 139 4.0 1.38O 1O.O 9.6OO 1.3 70 2.6 50O 7.O 4.S8O

2.0 184 5.0 2,300 11.0 11.9OO 1.5 98 3.0 74O 8.0 6,390

2.2 244 6.0 3,340 12.5 15.8OO 1.7 136 3.5 1,100 9.1 8,200

2.5 370 7.0 4,620 1.9 184 4.0 1,500

3.0 65O 8.0 6,020 2.1 248 5.0 2,460

Discharge, In second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

e

9

10

11

,12

13

14

15

16

17

16

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

115

115

125

132

137

141

147

141

137

141

141

141

141

139

130

126

134

139

154

147

150

150

150

152

152

156

156

156

152

152

158

Nov.

172

165

165

160

160

154

152

150

147

143

141

137

134

132

132

130

130

128

135

294

316

1,080

5,300

1,550

885

638

519

448

405

370

-

Dec.

356

333

347

2,850

2,140

3,310

2,270

1,680

1,240

962

808

698

626

578

536

480

464

442

426

415

405

390

380

370

370

365

361

347

342

342

338

Jan.

329

324

316

311

295

299

303

303

299

299

299

295

295

290

282

271

274

274

274

274

274

274

271

271

271

271

267

267

271

338

548

Feb.

668

572

475

426

390

356

342

324

361

602

1,660

15,700

7,780

3,440

2,370

2,360

2,210

1,700

1,420

1,240

1,090

985

. 873

789

728

704

698

680

_

-

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

770

1,980

8,080

7,910

3,920

2,670

2,110

1,790

1,760

7,710

6,330

3,520

2,640

2,140

1,81'

1,550

1,360

1,240

1,130

1,060

992

936

894

838

796

761

734

915

1,770

3,200

2,370

Apr.

1,750

1,610

2,080

1,710

1,440

1,330

1,200

1,090

1,040

978

901

845

796

747

716

686

656

632

614

590

572

572

548

524

512

494

484

478

472

456

-

May

423

385

350

d330

d310

d300

d285

d270

H256

d240

d230

d225

d215

3205

193

187

179

171

168

161

151

145

140

136

132

130

124

126

124

112

122

£&£. 

4,407 158 

14,572 5,300

24,971 3,310

256,432 14,500

9 229 548

50^943 15,700

75,686 8,080

26,463 2,020

6,525 423 

5,134 608

2,185 78

2j566 122

3,642 165

226,323 15,700

June

132

147

151

143

154

163

270

608

390

286

248

224

208

187

179

176

161

149

136

122

111

100

95

80

83

86

107

83

76

79

-

Minimum

115

128

333

90

267

324

734

456

112

76

63

68

79

63

July

78

76

73

70

68

69

73

69

65

68

70

70

71

70

74

74

75

74

71

73

73

69

66

69

71

70

70

70

65

63

68

Aug.

74

75

75

74

70

7O

69

69

71

75

79

73

66

70

73

71

74

75

75

75

98

116

122

112

.103

90

90

92

96

96

96

Sept.

94

96

98

89

94

96

98

92

82

79

89

95

109

118

124

124

130

134

134

136

143

145

149

154

154

151

151

165

158

161

-

Mean Runoff in 

*e acre-feet

142 8,740 

486 28^900

80S 49,530

703 508,600

r>QO -I a Vtf) CVO J.t>jOJLU

1,819 101,000

2,441 150,100

882 52,490

210 12,940

171 10,180

70.5 4,330

82*8 5*090

121 7,220

620 448,800

d Doubtful gage-height record} discharge computed on basis of one staff-gage reading and records 

for station near Hopland.

h Computed from staff-gage reading.
RUSSIAN RIVER BASIN 403

Russian River at Guerneville, Calif.

Location.- Wire-weight gage, lat. 38°30'03", long. 1220 59'36", in NW£ sec. 32, T. 8 N., 

RT~IU~V., 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 1947.

Extremes.- Maximum discharge during year, 23,600 second-feet Feb. 12 (gage height, 21.7 

 feet, from floodmarks}; minimum observed, 64 second-feet Aug. 7 (discharge measurement }.

1939-47: Maximum discharge, 88,400 second-feet Feb. 28, 1940 (gage height, 46.87 

feet); minimum observed, that of Aug. 7, 1947.

Remarks.- Records good Jan. 1 to May 15, fair Nov. 23 to Dec. 31, May 16 to Sept. 30, 

poor Oct.»l to Nov. 22. Gage read twice daily with additional readings in periods 

of high water. Many diversions above station for irrigation. Flow also affected 

by diversion into basin, see "Remarks" for East Fork Russian River near Calpella.

Discharge, in second-feat, water year October 1946 tc 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.

> 140

Nov.

. 120

400

600

750

5,160

2,250

1,380

940

715

57O

488

424

-

Dec.

388

357

375

3,140

3.43O

4.71O

4,O50

2,910

2,200

1,660

1,350

1,130

976

864

776

710

645

610

565

535

510

492

483

474

465

460

456

447

442

438

438

Jan.

43S

429

420

411

402

393

393

393

38S

384

384

,380

370

370

366

357

344

334

330

322

322

318

314

306

302

294

282

314

352

447

535

Feb.

770

650

560

510

483

447

424

411

438

693

1,790

18,900

16,7OO

6,590

4,230

3,540

3.76O

2,660

2,330

1,9SO

1,740

1,520

1,350

1,190

1,080

1,000

958

922

.

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 .............'..........

January. ...................................

February ...................................

 arch. .....................................

April ......................................

 *.. ......................................

June .......................................

July...................................... .

August. ....................................

September. .................................

Water year 1946-47 ......................

Har.

940

2,640

8,720

13,400

7,080

4,590

3,540

2,910

£,660

9,330

11,900

6,520

4,590

3,600

2,980

2,530

2,220

1,950

1,770

1,62O

1,490

1,390

1,300

1,200

1,120

1,060

1,020

1.34O

2,520

5,420

4,170

Apr.

3,160

2,710

3,110

2,830

2,400

2,180

1,950

1,760

1,650

1,510

1,380

1,270

1,170

1,100

1,020

964

892

842

803

759

715

69S

671

640

610

580

56O

550

550

535

Seocndf cot-days

4,340

15,957

36,486

365,689

11,394

77,826

117,520

39,569

7,972

6,345

2,170

2,542

3,750

325,871

May

516

442

424

393

357

334

322

314

306

290

270

266

266

262

258

243

229

218

215

200

190

185

180

175

170

164

168

159

161

152

149

Maximum

.

5,160

4,710

19,900

535

IS, 900

13,400

3,160

510

731

_

_

-

18,900

June

161

176

1S3

188

196

212

248

560

731

494

387

317

290

257

220

209

194

173

159

140

122

106

9S

S8

79

75

72

79

69

62

Minimum

_

-

357

-

282

411

940

535

149

62

_

_

-

-

July

. 7O

Aug.

> 82

Mean

140

532

1,177

1,002

36S

2,780

3,791

1,319

257

212

70

82

125

893

Sept.

. 125

*

-

Runoff in 

acre-feet

8,610

31,650

72,370

725,300

22,600

154,400

233,100

78,430

15,810

12,590

4,300

5,040

7,440

646,400

Mete.- Stage-discharge relation Indefinite Oct. 1 to Nov. 22, Hay 20-25, June 13. 26, July 1 to 

Sept..30; discharge computed on basis of 7 discharge measurements and records for station near 

Healdsburg.
404 RUSSIAN RIVER BASIN

Dry Creek near Cloverdale, Calif.

Location.- Water-stage recorder, lat. 38°45', long. 123°05', In sec. 4, T. 10 N., R. 11 

 W. , bOO 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 1947.

Extremes.- 1945-46: Maximum discharge during year, 11,500 second-feet Dec. 27 (gage 

height, 12.15 feet); minimum, 0.3 second-foot Aug. 20.

1946-47: Maximum discharge during year, 3,980 second-feet Feb. 11 (gage height 

7.68 feet); minimum, 0.2 second-foot Sept. 14-30.

1941-47: Maximum discharge, 21,900 second-feet Jan. 21, 1943 (gage height, 16.65 

feet), from rating curve extended above 5,000 second-feet on-basis of velocity-area 

studies and logarithmic plotting; minimum, 0.1 second-foot Sept. 14-24, 3^0, Oct. 1-6, 

1944.

Flood of December 1937 reached a stage of about 18 feet (from floodmarks).

Remarks.- Records fair and at times during high water probably poor, 

version above station.

No storage or diDischarge, In second-feet, 1945-47 

1945-46

Day

1

2

3

4

5

6

7

8

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

.7

.8

.8

.8

.8

1.0

1.3

1.1

1.0

.9

.9

.9

1.0

1.0

1.0

1.0

.9

.8

.8

.8

 .8

.9

.9

2.0

312

559

690

Nov.

146

63

37

25

20

16

16

14

14

20

21

34

36

25

225

441

354

153

146

102

72

56

70

306

332

216

150

860

618

355

Dec.

266

208

439

2,530

1,550

796

510

380

296

245

208

169

142

126

123

113

99

68

80

114

1,820

2,210

1,410

1,500

1,800

1,400

6,740

2,550

1,430

854

582

Jan.

433

438

438

999

874

636

558

438

365

318

279

241

216

200

180

161

146

132

126

116

110

102

99

96

90

88

82

77

75

7O

68

Feb.

68

96

90

75

68

262

212

139

116

107

104

93

88

82

126

116

99

93

146

142

480

292

241

237

208

184

208

180

_

-

-

liar.

161

150

136

129

120

116

110

104

99

93

90

88

113

90

85

82

80

77

77

75

72

68

66

68

65

60

56

68

212

224

165

Apr.

139

123

110

99

96

88

85 80

75

72

70

65

63

60

58

56

54

52

52

50

48

47

45

43

41

37

36

34

34

34

-

May

33

31

29

29

28

26

22

22

22

21

21

21

20

20

18

18

18

18

16

16

16

16

16

18

18

23

20

16

16

16

14

June

14

13

12

12

12

12

12

12

11

10

10

10

10

10

10

9.4

8.8

7.8

7.3

6.5

6.9

7.3

6.5

6.1

5.7

4.3

3.5

3.5

3.5

3.2

-

July

3.0

3.0

3.0

3.2

3.0

3.0

2.8

2.8

3.0

2.8

2.6

2.4

2.3

2.3

2.3

2.0

2.0

2.0

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.4

2.4

2.1

1.8

1.6

1.3

Aug.

1.1

.9

.8

.8

.8

.8

.7

.7

.7

.7

.5

.5

.5

.4

.4

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.4

Sept.

0.4

.5

.6

.5

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.7

.7

.6

.6

.5

.5

.5

.4

.4

.5

.5

.5

.4

.4

.4

-

Peak discharge.- Dec. 4 (9 a.m.) 6,050 sec.-ft.; Dec. 27 (11 a.m.) 11,500 sec.-ft.
RUSSIAN RIVER BASIN 405

Discharge, In second-feet, of Dry Creek near Cloverdale, Calif., 1945-47 Continued

1946-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

0.4

.4

.5

.6

.5

.5

.5

.5

.5

.5

.4

.4

.4

.5

.5

.6

.6

.6

.7

.7

.7

.8

.8

.8

.8

.7

.7

.7

.8

.8

.8

Nov.

0.9

.9

.9

.9

.9

.9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

al.8

1.6

1.4

1.6

1.6

2.8

27

18

8.8

658

287

72

43

31

26

21

18

16

-

Deo.

16

16

285

464

180

354

157

110

82

65

56

48

41

37

34

31

29

26

23

22

21

21

20

20

21

20

18

16

16

16

15

Jan.

15

15

13

13

13

13

12

12

12

12

12

12

12

11

10

10

10

10

10

10

10

10

10

10

10

10

10

31

41

33

34

Feb.

26

22

21

20

18

18

16

16

48

60

1,100

1,800

522

284

192

220

165

123

99

85

72

60

54

45

36

33

28

21

-

-

Mar.

115

380

1,300

607

385

292

228

200

454

1,370

690

499

380

296

241

196

161

129

107

96

88

80

75

65

60

56

58

110

273

365

228

Apr.

169

204

192

146

126

116

102

96

93

82

75

68

65

58

54

-50

47

43

41

39

37

36

33

31

28

25

25

25

25

22

~

May

21

20

18

18

16

16

16

16

16

15

15

15

15

15

14

14

13

13

12

12

11

11

11

11

11

12

13

12

12

11

15

June

16

16

14

12

14

16

43

43

26

18

16

14

12

12

12

10

10

10

8.8

8.3

7.3

7.3

5.3

5.0

5.7

6.1

5.7

4.6

4.6

4.3

~

July

3.5

3.2

2.8

3.0

4.3

3.0

2.6

2.4

2.8

3.2

2.6

2.8

2.8

2.8

2.8

2.8

2.8

2.4

2.4

2.3

1.8

1.7

1.4

1.1

1.1

1.1

1.1

1.1

1.0

.9

.9

Aug.

0.9

.9

.9

.9

.9

.9

.9

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Sept.

0.5

.5

.5

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

""

a No gage-height record; discharge computed oh basis of recorded range in stage and weather 

records.

Monthly discharge, in second-feet, 1945-47

Month

Calendar year 1945 ......................

March. ....................................

April......................................

 ay. .......................................

July. ......................................

Water year 1945-46 ......................

March. . ....................................

May........................................

Seoondfoot-days

4

QJ *

3O +rvf 778t o

65,244.1

4 352

3 203

1 QA.fi

73 8

56,067.7

2,280

20 5

21 859 4 *

Maximum

6,740

139

3

9

6,740

464

Minimum

.3

34

3 2

.4

15

Mean

51 2

QQ* ***°

179

154

73.5

Runoff in 

ao re-feet

3 150

129,400

34

111,200

4,520

854211 O - 49 - 27
406 RUSSIAN RIVER BASIN

Laguna de Santa Rosa near Qraton, Calif.

Location.- Water-stage recorder, lat. 38°27', long. 122°50', in sec. 14, T. 7 N., R. 9

 W. in Molinos land grant, 0.2 mile downstream from Santa Ros'a Creek and 2 miles northeast of Qraton, 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 1947.

Extremes.- Maximum contents during year, 5,720 acre-1'eet Feb. 12 (elevation, fafa.8 feet);

 contents less than 500 acre-feet Oct. 1 to Nov. 22, Nov. 30 to Dec. 2, July 8 to 

Sept. 30.

1940-47: 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.- The laguna is a natural water channel and overflow basin connecting Santa Rosa

 Creelc, 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 laguru acts as a 

natural regulator of floods on lower Russian River. Contents shown are for 12 p.m. of 

date indicated.

Contents, in acre-feet, water year October 1946 to September 1947

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. Nov.

_

_

-

_

-

.

_

_

_

-

_

_

-

-

-

_

_

-

_

-

_

_

1,000

950

850

750

650

600

500

_

-

Dec.

_

_

500

1,180

1,840

2,240

2,000

1,920

1,680

1,420

1,240

1,120

1,000

900

850

800

700

650

600

600

550

550

-

_

-

_

-

_

-

_

-

Jan. Feb.

_

_

_

_

-

.

_

_

_

-

1,420

5,720

4,120

2,800

2,080

2,000

1,760

1,600

1,420

1 , 300

1,180

1,060

1,000

900

900

850

800

750

_

-

Mar.

1,300

1,420

3,400

3,200

2,400

2,000

1,680

1,540

2,000

4,600

3,640

2,700

2,160

1,840

1,600

1,420

1,300

1,240

1,120

1,060

1,000

950

950

900

900

850

850

1,120

1,680

2,080

2,000

Apr.

1,840

2,080

2,080

2,000

1,840

1,600

1,480

1,360

1,300

1,180

1,120

1,000

900

900

850

850

800

800

800

800

800

750

750

750

750

750

750

750

750

750

Hay

750

750

750

750

750

750

750

750

750

700

700

700

700

700

700

700

700

700

700

700

700

700

700

650

650

650

650

650

650

650

700

June

700

700

700

700

700

750

750

750

750

750

750

700

700

700

700

700

700

700

700

.

_

_

_

-

.

_

_

_

_

-

July Aug. Sept.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946...

Sept. 30.... ............

.Water year 1946-47...

Elevation 

(feet)

-

50 5

__

^

-

.

Contents 

(acre-feet)

-

-

-

Change In contents 

during month 

(acre-feet)

-

 1 250

-

-

Mote.- Contents below 500 acre-feet and not computed Oct. 1 to Nov. 22, 

Nov. 30 to Dec. 2, July 8 to Sept. 30; no gage-height record Dec. 23 to 

Feb. 11, June 20 to Sept. 9.
EEL RIVER BASIN 407

Lake Pillsbury at Hullville, Calif.

Location.- Staff gage, lat. 39°24', long. 122°57', on line between sees. 14 and 23, T. 18 

 N., K. 10 W., at Scott Dam on Eel River, at Hullville, 0.3 mile downstream from Rice 

Pork. Datum of gage is at mean sea level.

Drainage area.- 288 square miles.

Records available.- October 1922 to September 1947 (gage heights only prior to October

Remarks.- Reservoir is formed by concrete overflow type dam; storage began in December 

 lyyi. Capacity, 93,700 acre-feet between elevations 1,822.4 feet (sill of outlet gate) 

and 1,910.0 feet (top of spillway gates) above mean*sea level. Water is released down 

Eel River to Van Arsdale Reservoir, from which it is diverted through tunnel to Potter 

Valley powerhouse; part is then used for irrigation and remainder flows into East Pork 

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 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.

51 , 400

51,100

50,600

50,300

50,100

_

49,500

49,000

-

48,300

48,000

47,700

47 , 400

46,900

46,600

46,100

45,800

45,500

_

-

44,500

44,200

43,700

43,400

43,000

_

_

41,900

41,600

41 ,200

40,800

Nov.

40,300

_

-

39 , 400

39,100

38 , 800

38,500

38,200

_

-

37 , 600

37,300

37,000

36,700

36 , 500

_

-

35,400

36,900

37 , 700

37,600

37,800

-

-

48,300

48,300

48,300

48,200

47,900

a47,700

-

Dec.

.

47,400

47,100

52,700

54,400

56,900

_

-

59,300

59,700

59,700

59,900

59,900

_

-

59,500

59,200

59,200

59,200

58,600

.

_

57,900

57,700

57 , 400

57,200

57,000

_

_

56,300

56,000

Jan.

55,600

55,500

55,100

_

-

54,300

53,900

53,600

53,200

52,900

_

_

51,900

51,700

51,600

51 , 300

50,900

_

_

50,300

50,100

49,800

49,600

49,300

49,100

_

_

_

_

_

348,800

Feb.

.

_

48,700

_

48 , 500

.

48,700

_

-

50 , 900

66,600

72,900

73,900

73,700

74,500

75,500

76,100

76,700

77,400

77,800

_

78,800

79,000

79,000

79,000

79,300

_

_

-

Mar.

.

_

91,200

90,700

88,700

89,300

9O.30O

-

_

92,600

92,600

93,500

93,000

93,500

-

_

93,500

93,500

93,700

93,700

93,500

_

93,500

93,700

93,700

94,000

94,200

_

94,700

93,500

Apr.

94,2oo

94,200

94,200

94,OOO

-

93,500

93,700

94,000

94,200

94,000

94,000

_

93,500

93,700

94,000

94,200

94,200

94 , 200

-

93,700

94,000

93,700

93,700

93,700

_

93,500

93,300

93,300

93,300

May

93,500

93,300

93,500

93,500

93,500

93,700

93,700

93,700

-

.

93,700

93,700

-

93,700

_

93,700

 93,500

93,300

-

93,000

93,000

92,800

92,860

92,600

a92,600

June

92,800

92,800

92,800

92,800

92,600

93,000

94,200

94,200

94,200

94,200

94,200

-

94,000

94,000

94,000

93,700

93,700

_

93,300

93,000

92,800

92,600

92,600

_

91,900

July

91,400

91,200

90, 900

-

_

90,300

90,000

89,600

89,300

89,100

_

_

88,400

88,200

88,000

87,500

87 , 300

-

86 , 600

86,400

86,200

85,800

85,500

.

_

84,900

84,600

84,400

84,200

Aug.

83,800

_

_

82,700

82,500

82,200

82,000

81,400

_

-

80,700

80,500

80,100

79,900

79,500

_

_

78,600

78,200

.77,800

77,400

76,900

_

-

76/100

75,700

75,300

75,100

74,900

_

a74,300

Sept.

_

73,300

73,100

72,900

_

_

72,000

71,600

71,200

70,900

70,300

_

-

69,100

68,700

68,100

67,700

67,100

_

65,800

65,400

64,900

64,500

64,100

_

_

62,800

62,200

-

a No gage-height recordj contents Interpolated.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946...

Sept. 30....... .........

Water year 1946-47...

Elevation 

(feet)

-

1 909 2

1,894.9

-

Contents 

(acre-feet)

-

93 500

93 300

91 900

62,200

-

Change in contents 

during month 

(acre-feet)

-10 900

'

-19,100

+14 200

200

700

700

-12,100

+10,500
408 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., R.

 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.

Kecords available.- November 1922 to September 1947. 

Average discharge.- 24 years (1923-47), 465 second-feet, 

extremes.- Maximum discharge during year, 8,650 second-feet (regulated) Mar. 10 (gage

 height, 12.15 feet), from rating curve extended above 1,900 second-feet on basis of

computed flow over Scott Dam at various stages; minimum, 52 second-feet (regulated)

Feb. 23.

1922-47: Maximum discharge, 38,000 second-feet Dec. 11, 1937 (gage height, 22.9

feet, from floodmarks), from rating curve extended above 3,000 second-feet on basis of

computed flow over Scott Dam; practically no flow at times. 

Remarks.- Records excellent below 2,000 second-feet, good above. Plow regulated by Lake

FTTTsbury (see preceding page). No diversion above station. 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project.

Rating table, water year 1946-47 (gage height, 

In feet, and discharge, in second-feet)

2.7 46 4.4 478

2.8 57 4.7 594

3.0 84 5.0 716

3.2 118 5.5 950

3.4 164 6.0 1,250

3.7 246 6.5 1.6OO

4.0 338 7.0 1,980

7.5

8.0

8.5

9.0

9.5

10.0

11.0

Discharge, in second- feet, water year October 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.

180

174

172

124

74

134

201

180

174

172

167

107

159

212

180

174

180

180

177

177

172

164

177

177

172

167

159

162

193

187

172

Nov.

167

156

162

146

114

135

144

126

116

114

131

126

109

114

122

122

126

133

104

167

187

185

154

154

169

190

198

204

207

210

-

Dec.

207

204

ISO

122

120

122

122

126

159

177

177

182

187

193

193

193

198

207

207

210

207

210

210

207

207

207

207

210

210

210

210

Jan.

210

210

210

212

212

215

215

218

218

218

218

218

185

167

169

162

167

167

164

167

167

159

144

135

124

131

131

131

131

131

128

Feb.

128

128

122

114

114

114

105

92

98

90

86

94

416

1,200

744

263

83

98

98

95

85

53

57

97

125

172

172

174

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July .......................................

August. ....................................

September. .................................

Water year 1946-47 ......................

Mar.

172

132

816

3,230

1,720

407

201

201

1,340

5,240

1,660

1,500

1,180

716

855

855

548

435

562

618

562

486

424

261

201

207

221

319

562

1,770

1,160

Apr.

Seccndfcct-days

5,200

4 492

5*781

111,313

5,434

5 217

28*561

10,924

2,462

2,717

3,510

4,380 

5,726

84,404

442

742

769

734

708

566

345

358

464

524

424

417

348

235

240

258

312

352

332

335

270

243

238

218

207

204

204

177

144

114

2,400

2,860

3,370

3,930

4,540

5,200

6,700

to September 1947

May

128

11

6

6

5

4

7

69

69

7

7

7

0

1

4

78

78

7

7

7

8

8

8

78

78

7

7

7

8

8

8

78

80

8

a8

a7

7

4

8

a78

a78

a7

a7

7

8

8

8

8

0

78

Maximum

212

210

210

5,070

218

1 200

5^240

769

128

126

135

232

229

5,240

June

70

62

87

78

90

89

66

65

71

97

102

100

97

92

89

83

94

83

90

97

84

81

98

126

100

100

100

102

104

120

Minimum

74

104

120

74

124

53

132

114

64

Cpt>&

89

84

109

53

July

120

120

111

89

92

95

133

135

124

120

113

113

113

113

118

122

120

113

100

100

111

116

116

114

111

92

92

113

122

126

133

Aug.

124

100

105

124

126

156

144

137

105

105

120

144

137

139

128

84

105

196

232

207

.190

135

116

118

182

172

144

149

152

152

152

Sept.

142

131

152

152

135

109

109

131

146

164

212

210

196

198

224

229

226

226

224

218

218

218

218

218

218

218

218

218

224

224

-

 _ Runoff in Mean acre-feet

168 10,310

150 8,910

1S6 11,470

305 220,800

175 10,780

186 10,350

921 56 650

364 21J670

79.4 4,880

90.6 5,390 

113 6,960

141 8,690 

191 11,360

231 167,400

a No gage-height records discharge computed on basis of needle valve operation at Scott Dam.
EEL RIVER BASIN 409

Eel River at Van Arsdale Dam, near Potter Valley, Calif.

Location.- Water-stage recorder, lat. 39°23', long. 123°07' , in NE£ sec. 30, T. 18 N., 

K. ii 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 1947. November 1909 to September 1922

(conmined 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.- 24 years (1922-26, 1927-47), 527 second-feet, combined flow of Eel 

Kiver at van Arsdale Dam and Potter Valley powerhouse tailrace.

Extremes.- Maximum discharge during year, 9,120 second-feet (regulated) Mar. 10 (gage 

height, 14.88 feet); minimum, 0.3 second-foot (regulated) Aug. 17.

1909-47: 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 

(regulated) Nov. 1, 1945.

Remarks.- Records good. Water is diverted from Van Arsdale Reservoir through tunnel to 

power plant in Potter Valley (see p. 411), after which part is used for irrigation and 

remainder flows into East Fork Russian River. Records given herein show only flow 

passing dam down Eel River.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtainea in connection with a Federal Power Commission project.

Discharge, in seccnd-feet, water year October 1946 tc September 1947

Day

1

3

4

5

6

7

8

9

10

11

13

14

15

16

17in

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

11

11

10

8.4

4.4

3.4

2.4

2.3

3.9

7.4

7.O

7.0

7.0

7.4

8.8

8.8

8.4

8.8

8.8

10

19

9.8

9.1

9.1

9.4

9.1

10

11

9.8

9.4

9.4

Nov.

9.4

9.4

9.8

11

10

9.8

9.8

10

10

11

11

12

13

12

12

12

12

13

50

8.8

6.8

355

260

26

14

12

10

11

11

12

-

Dec.

14

13

124

221

58

199

51

22

13

22

16

14

12

12

12

11

9.8

10

12

13

12

10

10

11

10

12

11

10

10

11

10

Jan.

13

12

10

10

10

9.S

9.1

9.1

9.1

9.8

10

10

9.8

7.2

8.3

6.7

5.3

5.6

6.9

5.8

5.4

5.2

4.8

4.6

4.7

6.8

7.0

6.6

5.4

6.6

6.0

Feb.

6.0

6.8

6.0

7.7

7.7

7.0

7.4

4.7

6.0

6.6

261

1,240

521

1,140

805

288

21

13

9.8

10

10

10

9.4

9.8

9.8

10

10

9.8

-

_

-

Month

December. ...................................

Calendar year 1946 ......................

September ..................................

Water year 1946-47 .......................

Mar.

24

194

1,540

3,420

2,020

520

1S1

151

1,010

6,140

2,150

1,450

1,270

660

855

898

560

330

410

503

443

338

309

128

49

46

56

119

384

1,570

1,330

Apr.

288

74O

770

710

660

572

232

239

298

418

284

255

222

78

75

83

121

179

163

141

92

69

72

31

25

26

19

2O

2.7

4.6

-

Secondfcct-days

975.8

66,137.4

125 1

149.1

43,729.3

May

4.6

16

12

12

12

11

10

9.5

9.5

7.2

5.3

5.8

5.0

5.3

5.8

5.8

5.8

5.8

7.6

7.2

6.2

5.8

7.2

7.6

8.6

9.5

9.1

9.1

9.5

7.7

3.6

Maximum

221

6,000

7.6

6,140

June

3.6

3.6

3.3

7.6

7.6

6.7

7.6

8.6

8.6

9.1

6.2

8.6

8.6

7.6

7.6

8.1

7.2

11

8.5

5.3

6.2

7.2

6.2

5.O

4.3

3.0

2.4

3.3

4.1

2.8

-

Minimum

9.8

2.3

1.0

.3

July

3.8

4.6

5.0

2.8

1.5

2.0

2.7

3.0

4.8

5.8

5.8

7.2

7.6

7.2

6.2

6.7

7.6

7.2

7.2

9.1

9.1

8.1

6.7

6.7

5.3

4.8

6.2

4.8

3.0

1.7

1.8

Aug.

3.0

3.0

2.8

1.2

1.2

.8

2.7

2.2

2.4

5.0

6.7

6.2

7.6

S.I

7.6

3.3

.3

1.2

2.2

2.2

1.3

2.4

2.5

4.3

3.8

8.6

e.i

7.2

6.7

6.2

4.3

Mean

31.5

181

957

23O

4.97

120

Sept.

5.0

7.2

4.8

4.3

4.O

3.3

5.8

5.8

4.0

3.6

2.0

1.7

1.0

1.6

2.8

3.8

5.0

6.2

7.2

7.2

7.6

7.6

6.7

6.7

6.2

5.3

5.8

5.8

5.3

5.8

-

Runcff in 

acre-feet

1,940

131, 20O

329

248

296

86,740
410 EEL RIVER BASIN

Eel .River at Scotia, Calif.

Location.- Water-stage recorder, lat. 40°89', long. 124°06', in see. 7, T. 1 N., R. IE., 

at oridge 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 1947.

Average discharge.- 34 years (1911-14, 1916-47), 6,232 second-feet.

Extremes.- Maximum discharge during year, 86,100 second-feet Feb. 12 (gage height, 29.02 

reet); minimum, 40 second-feet Sept. 30.

1910-15, 1916-47: 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. Diversion above station for power and irrigation near Potter

Rating tables, water year 1946-47 (gage height, In feet, and discharge,

In second-feet) 

(Shifting-control method used Oct. 1 to Feb. 11)

Oct. 1 to Feb. 11 Feb. 12 to Sept. 30

9.4 50 10.6 900 15.0 11,000

9.5 90 11.0 1,370 16.0 14,600

9.6 135 11.5 2,100 18.0 23.0OO

9.7 185 12.0 3.O5O 2O.O 32,50O

9.9 300 13. 0 5,240 21.1 38,600

10.2 520 14.0 7,900

8.9 30 1O.O 59O 14. O 8,700

9.0 64 1O.5 1.10O 16. 0 15,100

9.2 142 11. 0 1,87O 18.0 23,000

9.4 230 11.5 2,900 2O.O 32,500

9.6 325 12. O 3,820 26. O 66,000

9.8 445 13.0 6,100

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.

82

7S

74

74

82

S2

82

78

78

86

94

90

94

94

90

78

74

74

74

74

86

104

130

155

196

175

150

145

145

150

145

Nov.

145

135

13O

122

122

122

117

117

117

112

117

117

117

117

117

112

117

22O

3,680

9,99O

5,290

7,990

38.30O

14,600

6,500

4,030

2,890

2,290

1,960

1,76O

-

Dec.

1,670

1,600

1.69O

19,200

15,100

13,600

12,600

8,2OO

7.O6O

5,550

4,500

3,820

3,29O

2,890

2,59O

2,310

2.O8O

1,900

1,740

1,600

1,510.

1,450

1,360

1,280

1,220

1,170

1.22O

1,190

1,180

1,140

1,100

Jan.

1,03O

944

911

860

8OO

760

730

710

700

682

664

682

740

750

720

682

664

637

61O

61O

592

583

574

565

565

730

977

1,800

3,800

4,83O

S,11O

Feb.

6,640

5,190

5,310

5.38O

4,630

4,080

3.63O

3,310

3,150

3,9OO

6,500

62,500

48, 8OO

21,500

14.5OO

11,5OO

9,750

7.99O

6,720

5,860

5,220

4,620

4,180

3,840

3,530

3,320

3,120

2,920

.

-

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March.. ........'............................

April. ................................:....

May.........................................

June .......................................

July...... ................ ....i......... ...

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

2,880

8,560

54,700

44,500

24.9OO

16,600

11,800

10,100

9,750

49,400

45,200

24,300

17,100

14,000

11,500

10,300

9,390

8,450

7,54O

6,920

6,500

5,960

5,690

5,810

5.O6O

4,470

4.1OO

3,900

4,160

1O.8OO

18., 500

Apr.

13

10

13

11

9

9

8

7

7

7

6

6

5

5

5

4

4

4

3

3

3

3

3

2

2

2

2

2

2

2

Secondfoot-days

3, 213

101,553

126,810

1,431,571

38,012

271,590

462, 84O

172,860

 Z-l CQ1 OJ., OoJ.

31,084

7,875 

4 622

2^192

1,254,332

,100

,4OO

,600

,800

,930

,150

,260

,360

,440

,O80

,480

,O50

,640

,310

,O40

,620

,360

,140

,860

,610

,400

,200

,000

,720

,530

,380

,210

,140

,O5O

,000

-

May

1,940

1,800

1,730

1,680

1,600

1,480

1.42O

1,360

1,310

1,240

1,190

1,130

1.O60

1,000

881

870

830

78O

780

780

751

713

658

641

607

575

560

582

575

568

590

Maximum

196

38,300

19,200

70,OOO

8,110

62,500

54,700

13,600

1,940

3,240

369

19O

102

62,500

June

684

87O

1,000

1.14O

936

881

1,110

1,960

3.24O

3,120

2,27O

1,680

1,340

1,140

980

892

840

780

722

684

632

575

545

515

487

438

419

412

406

386

-

Minimum

74

112

1.10C

50

565

2,920

2,880

2 , O0(

56C

386

18E

91

47

47

July

369

352

347

342

320

310

295

285

285

280

28O

275

27O

257

248

244

239

230

216

216

212

208

203

194

185

185

212

216

212

194

194

Aug.

190

190

190

19O

185

172

176

176

176

172

168

164

164

164

164

159

155

159

151

134

134

130

118

126

118

98

94

98

110

106

91

Sept.

91

83

75

72

75

83

94

102

91

87

87

87

75

91

87

68

64

72

75

68

68

64

61

54

57

57

57

50

50

47

-

u..« Runoff in *ean aore-feet

104 6,370

3,385 201,400

4,091 251,500

3,922 2,840,000

1,226 75,400

9,700 538,700

14,930 918,000

5, 762 342, 90O

1,022 62,840

1,036 61,650

254 15,620 

149 9,170

73.1 4,350

3,437 2,488,000

Peak discharge.- Nov. 23 (12 m.) 52,700 sec.-ft.} Feb. 12 (5 p.m.) 86,100 sec.-ft.; Mar. 3 

(5 to 6 p.m.) 71,200 sec.-ft.} Mar. 1O (7 p.m.) 72,1OO aefr.-ft.
EEL RIVER BASIN 411

Potter Valley powerhouse tailraoe near Potter Valley, Calif.

Location.- Water-stage recorder and electrical output meters, lat. 39°21', long. 123°07', 

in Mwf 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 1947. 

Average discharge.- 25 years, 190 second-feet.

Extremea.- Maximum daily discharge during year, 224 second-feet Mar. 2; minimum daily, 69 

second-feet May 25.

. 1922-47: Maximum daily discharge, 321 second-feet Aug. 26, 1933; no flow at times 

in several years.

Remarks.- Records excellent except those for Nov. 7-11, Apr. 29 to Sept. 19, which are 

goooT 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 Pork Russian River. Water for irrigation diverted from tailrace is included 

in figures of discharge.

Cooperation.- Record of daily discharge Nov. 7-11, Apr. 29 to Sept. 19, computed from 

powerhouse output, furnished by Pacific Oas & Electric Co., obtained in connection 

with a Federal Power Commission project.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

6

6

7

8

9

10

11

12

13

14

16

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Dot.

170

170

175

172

182

127

172

173

169

170

171

157

115

171

184

176

173

174

174

132

173

173

173

174

174

173

123

172

188

211

171

Nov.

179

176

116

164

130

 134

141

141

141

125

141

132

130

131

130

131

120

13S

183

219

220

220

219

216

211

216

216

213

216

214

-

Dec.

209

216

21S

215

213

210

210

210

212

214

213

214

214

214 214-

214

215

215

214

213

216

216

215

218

219

218

219

219

219

218

220

Jan.

202

221

221

221

220

221

221

222

221

221

221

221

214

172

175

172

171

173

172

174

172

163

153

152

112

118

139

154

142

157

172

Feb.

156

159

170

154

155

153

147

121

156

207

165

218

216

216

216

215

215

215

196

175

162

104 '98

134

143

219

213

215

. _

_

-

Month

December. ..................................

Calendar year 1946 ......................

April........... ...........................

May. .......................................

Jnly. ......................................

September. .................................

Water year 1946-47 ......................

Bar.

218

224

222

216

218

220

219

220

209

218

218

218

216

216

216

169

219

215

219

21S

218

216

216

216

215

21S

218

218

219

218

216

Apr.

219

219

21S

219

218

214

221

221

221 22-1

220

222

219

220

221

221

220

219

218

221

213

220

220

221

221

217

216

217

182

175

-

Seoondfoot-days

5 212

6,662

68,206

t 91 3

5,727

61,151

May

los

95

91

71

S3

89

93

93

92

109

S9

89

100

93

93

S8

95

78

72

87

92

89

96

89

69

S7

93

89

93

89

89

Maximum

220

231

219

224

222

144

1 A.A

220

224

June

75

93

114

97

89

99

89

S9

109

121

142

94

119

110

S3

94

132

97

95

95

89

82

122

144

142

137

136

96

142

136

Minimum

11 ft

209

35

QA

175

75

96

69

July

136

136

136

130

110

110

142

145

136

147

142

96

131

136

136

136

136

136

96

96

136

141

140

136

140

96

95

147

147

148

142

Aug.

147

96

141

136

146

154

147

171

96

96

127

156

131

153

159

150

88

14S

219

219

221

157

96

13S

157

157

157

166

157

157

169

Mean

215

187

191

16S

Sept.

120

157

157

158

157

99

96

157

157

155

219

219

219

173

211

216

219

219

219

215

217

219

219

220

219

215

218

218

220

220

Runoff in 

ao re-feet

13,210

135,300

11,360

121,300
412 EEL RIVER BASIN 

South Fork Eel River near Branscomb, Calif.

Location.- Water-stage recorder, lat. 39°43'30", long. 123°38 I 45", 3 miles downstream 

rrom wedwood Creek and 6 miles north of Branscomb.

Records available.- October 1946 to September 1947.

Extremes.- Maximum discharge during year, 2,000 second-feet Mar. 10 (gage height, 5.90 

reetj; minimum, 1.9 second-feet Sept. 19, 25-30.

Remarks.- Records good except those for October arid November, which are fair. No 

regulation or diversion.

Rating table, water year 1946-47 (gage height, in feet,

and discharge, in second-feet) 

(Backwater oorreotiona applied Oct. 1 to Feb. 12)

0.85 1.6 1.4 2S 2.6 282 

.9 2.1 1.5 38 2.9 390 

l.O 3.6 1.6 50 3.3 55O 

1.1 7.0 1.8 79 3.8 780 

1.2 12.4 2.0 116 4.5 1,130 

1.3 20 2.3 191 5.2 1,55O

Discharge. In second- feet, water year October 1946. to September 1947

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.

a2.6 

h2.6 

h2.6 

h2.6 

a2.6

a2.6 

a2.6 

a2.6 

a2.6 

a2.7

a2.7 

a2.7 

a2.7 

a2.7 

h2.7

h2.7 

h2.7 

a2.7 

a2.7 

a2.7

a3.5 

a5.0 

h9.5 

h5.4 

h4.2

3.4 

3.4 

3.4 

3.4 

3.4 

3.4

NOT.

3.6 

3.6 

3.6 

3.6 

3.6

3.4 

3.4 

3.1 

2.9 

2.9

2.9 

2.9 

2.7 

2.7 

2.7

2.7 

3.1 

22 

547 

150

64 

543 

446 

172 

104

74 

60 

47 

41 

36

Dec.

33 

32 

124 

334 

206

289 

208 

186 

142 

116

98 

84 

73 

64 

57

51 

46 

41 

38 

36

32 

30 

28 

26 

25

25 

24 

22 

22 

22 

20

Jan.

20 

19 

18 

17 

17

17 

16 

16 

15 

15

15 

17 

17 

17 

17

17 

16 

16 

15 

14

16 

16 

16 

16 

17

33 

31 

SO 

76 

331 

253

Honth

Octc 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wa

Feb.

164 

132 

128 

112 

100

86 

76 

68 

70 

72

285 

1,330 

707 

426 

299

244 

188 

152 

130 

110

96 

91 

81 

74 

68

63 

60 

54

mber. ...................................

lehdar year

h. .....................................

ember. ..................................

ter year 1946-47 ......................

Mar.

63 

457 

1,420 

860 

530

363 

282 

247 

518 

1,530

865 

550 

390 

299 

235

194 

162 

139 

123 

108

94 

91 

89 

79 

73

68 

63 

63 

90 

340 

289

Apr.

220 

256 

272 

235 

206

180 

156 

139 

132 

114

102 

93 

84 

78 

72

67 

61 

60 

57 

53

51 

49 

46 

43 

41

39 

37 

37 

37 

36

Hay

33 

31 

31 

30 

29

28 

28 

28 

27 

26

25 

24 

24 

24 

23

21 

20 

20 

20 

20

19 

18 

18 

17 

17

17 

17 

18 

17 

17 

18

£3& "* 

101.1 9.5 

2,159.4 543 

2,534 334

1,186 331 

5,466 1,330 

10,674 1,530 

3,053 272 

705 33 

792 67 

271.8 12 

115.2 5.4 

67.7 2.9

27.125.2 1.530

June

34 

34 

24 

21 

23

26 

39 

64 

67 

49

39 

34 

30 

27 

25

24 

24 

22 

20 

19

18 

17 

16 

15 

14

14 

14 

14 

13 

12

Minimum

2.6 

2.7 

20

14 

54 

63 

36 

17 

12 

5.8 

2.7 

1.9

1.9

July

12 

12 

12 

12 

11

11 

11 

11 

10 

10

10 

10 

9(5 

9.0 

8.5

8.5 

8.5 

8.5 

8.0 

7.5

7.0 

7.0 

6.6 

6.6 

6.2

6.2 

6.6 

7.0 

6.6 

6.2 

5.8

Aug.

5.4

5.4 

5.4 

5.4 

5.4

5.1 

4.8 

4.8 

4.8 

. 4.8

4.4 

4.2 

3.8 

3.4 

3.1

2.9 

2.9 

2.9 

2.7 

2.7

2.7 

2.9 

3.1 

3.1 

2.9

2.7 

2.7 

2.7 

2.7 

2.7 

2.7

Sept.

2.7 

2.6 

2.5 

2.4 

2.4

2.4 

2.9 

2.7 

2.7 

2.6

2.5 

2.4 

2.3 

2.2 

2.1

2.1 

2.0 

2.0 

2.2 

2.1

2.1 

2.0 

2.1 

2.0 

2.0

1.9 

1.9 

2.0 

2.0 

1.9

 _ Runoff in 116811 acre-feet

3.26 201 

72.0. 4,280 

81.7 5,030

38.3 2,350 

195 10,840 

344 21,170 

102 6,060 

22.7 1,400 

26.4 1,570 

8.77 539 

3.72 228 

2.26 134

74. S 53.800

Peak discharge.'- Feb-. 12 (1:30 a.m.) 1,640 sec. -ft.; Nar. 3 (5 a.m.) 1,680 sec. -ft.; Mar. 1O

(5:30 a.m.) 2.OOO sec.-ft.

a No gage-height record; discharge interpolated,or computed on basis of records fcr station near 

Niranda.

h Computed from staff-gage readings.
EEL RIVER BASIN 413

South Pork Eel River near Miranda, Calif.

Location.- Water-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.

Records available.- May 1940 to September 1947.

Extremes.- Maximum discharge during year, 23,700 second-feet Mar. 3 (gage height, 15.30 

reet); minimum, 18 second-feet Sept. 30.

1940-47: 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. No diversion; low flow regulated at Benbow Dam and powerhouse.

Rating tables, water year 1946-47 (gage height, In feet, and discharge, In second-feet)

Oct. 1 to Nov. 22 Nov. 23 to Sept. 30

2.0 23 3.0 237 6.0 3,490 2.0 20 2.9 210 5.0 1,980 

2-1 30 3.2 370 7.0 4,870 2.1 31 3.2 325 6.0 3,320 

2.3 50 3.4 525 9.0 8.10O 2.2 46 3.6 555 7.0 4,770 

2-5 76 3.7 80O 11. 0 12,200 2.3 65 4.O 865 S.O 6,340 

2.7 116 4.0 1,110 13.5 18.30O 2.6 131 4.5 1,370 10.0 10,100

' Note.- Same as preceding table above 10.9 

feeTI

Discharge, in second- feet, water year October 1946 tc Septenber 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

Oot.

29

48 

40 

34 

32

39 

32 

60 

54 

50

65 

62 

65 

49 

32

31 

30 

30 

32 

33

38 

50 

98 

91 

70

61 

52 

36 

41 

39 

37

Nov.

36 

36 

36 

36 

36

38 

37 

36 

36 

36

36 

36 

36 

36 

37

37 

38 

141 

3,020 

1,900

930 

3,910 

8,110 

2,030 

993

648 

484 

392 

335 

294

Dec.

280 

280 

1,120 

5,280 

2,450

2,900 

1,920 

1,600 

1,300 

1,000

831 

692 

597 

516 

454

414 

375 

345 

320 

302

294

280 

272 

261 

253

250 

246 

239 

239 

236 

229

Jan.

223 

216 

207 

204 

202

199 

199 

193 

190 

188

188 

18S 

190 

190 

188

185 

179 

177 

174 

172

172 

169 

166 

164 

166

204 

242 

499 

883 

1,850 

2,730

Feb.

1,440 

1,O6O 

946 

S22 

700

597 

522 

466 

466 

583

2,470 

14,200 

7,340 

4,060 

2,800

2,280 

1,930 

1,610 

1,380 

1,220

1,090 

993 

928 

874 

831

780 

732 

678

Month

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hay

June 

July 

Augu 

Sept

ffa

ber..... ...............................

lendar year 1946 

ary

1. .....................................

St....... ..............................

ember. .................................

ter year 1946-47 ......................

Har.

692 

4,070 

18,200 

10,200 

5,800

3,980 

3,080 

2,700 

3,770 

14, 300

8,460 

5,360 

3,880 

3,030 

2,470

2,100 

1,830 

1,610 

1,440 

1,300

1,190 

1,100 

1,090 

1,000 

919

831 

788 

772 

892 

3,330 

3,670

Apr.

2 

2 

2 

2

1

1 

1 

1 

1 

1

1 

1

Secondfoe t-days

1,460 

23,806 

25,775

337,234

11,097 

53,798 

113,854 

31,930 

8,691 

7,100 

2,976 

1,638 

1,091

283,216

,400 

,300 

,510 

,010 

,840

,680 

,470 

,370 

,370 

,230

,110 

,020 

955 

892 

848

797 

756 

724 

692 

648

618 

597 

576 

548 

542

503 

490 

484 

478 

472

Hay

448 

436 

424 

414 

402

392 

3S6 

380 

375 

365

360 

350 

340 

220 

210

207 

207 

223 

223 

220

216 

210 

204 

202 

182

179 

188 

185 

1S2 

179 

182

Maximum

98 

8,110 

5,280

14,200

2,730 

14,200 

18,200 

2,510 

448 

611 

126 

84 

54

18,200

June

226 

320 

269 

216 

204

213 

280 

490 

611 

460

340 

284 

250 

232 

216

207 

210 

202 

193 

188

182 

179 

179 

164 

.124

136 

138 

134 

129 

124

Minimum

29 

36 

229

14

164 

466 

692 

472 

179 

124 

63 

31 

28

28

July

122 

126 

122 

117 

115

101 

110 

113 

110 

106

104 

99 

97 

101 

95

86 

88 

88 

88 

95

84 

82 

80 

63 

82

82 

84 

76 

90 

86 

84

Aug.

84 

82 

80 

50 

80

65 

69 

56 

52 

50

59 

57 

59 

37 

57

57 

56 

34 

54 

34

46 

52 

31 

32 

36

54 

43 

48 

36 

54 

34

Mean

47.1 

794 

831

924

358 

1,921 

3,673 

1,064 

280 

237 

96.0 

52.8 

36.4

776

Sept.

34 

42 

50 

38 

54

37 

37 

36 

54 

32

32

50 

31 

30 

31

48 

31 

42 

31 

30

30 

37 

30 

48 

29

29

31 

30 

29 

28

Runoff in 

acre-feet

2,900 

47,220 

51,120

668,900

22,010 

106,700 

225,800 

63,330 

17,240 

14,080 

5,900 

3,250 

2,160

561,700

Peak discharge.- Feb. 12 (7 a.m.) 17.400 sec. -ft.! Har. 3 (8:30 a.m.) 23.700 see. -ft. i Mar. 10
414 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. IN., 

 K. 9 E., at highway bridge at Bridgeville, 1 mile downstream from Little Larrabee 

Creek. Ddtum 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 1947.

Extremes.- Maximum discharge during year, 12,100 second-feet Feb. 12 (gage height, 19.0 

reet, from floodmarks; minimum observed, 6.8 second-feet Oct.- 1, 2.

1939-47: 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 1946-47 (gage height, In feet, and discharge,

In second-feet) 

(Shifting-control method used Oct. 25 to Nov. 17, Sept. 13-30)

Oct. 1 to Mov. 22 Nov. 23 to Sept. 30

2.8 4.0 5.0 360 11.0 3,840 3.0 8.0 3.8 66

2.9 8.0 5.5 555 12. 0 4,630 3.1 10 .4.1 116

3.1 17 6.0 790 13.0 5,470 3.2 14 4.5 204

3.4 38 6.5 1,040 14. 0 6,380 3.4 25 5.0 338

3.7 67 7.0 1,300 16.0 8,450 3.6 43 5.5 520 1

*;° l°Ga6 £° |;Jgg 16 ' 4 8 ' 890 Mote.- Same as preceding table

4^6 242 loio 3^140 fe^~~

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

16

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.8

7.2

9.6

10

10

10

9.6

9.6

9.6

9.2

8.8

8.8

8.0

7.6

7.6

7.6

8.8

10

10

10

16

69

50

23

16

15

15

15

15

16

16

Nov.

16

16

16

14

13

12

12

12

12

12

12

12

12

12

12

12

13

135

3,400

750

470

5,690

4,420

1,300

721

600

500

520

512

398

-

Dec.

354

354

448

2,320

1,180

1,660

1,010

1,300

1,030

766

580

480

433

398

364

332

280

238

214

190

178

167

145

136

128

128

160

140

156

145

132

Jan.

124

114

102

96

91

90

84

78

75

69

66

74

95

91

78

72

84

98

96

109

105

98

91

126

132

970

520

592

512

830

721

Feb.

640

1,010

1,310

1,130

995

950

945

940

1,010

1,100

2,910

8,890

3,340

1,930

. 1,350

1,130

880

694

584

520

472

448

412

370

332

320

302

291

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

Maroh. .....................................

April............ ..........................

May. .......................................

June. ......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-4-7 ......................

Mar.

294

4,010

6,780

3,000

1,860

1,320

1,080

1,100

1.S80

5,380

2,940

1,960

1,460

1,180

960

S16

730

649

572

512

456

456

576

476

440

405

370

364

730

4,390

2,550

Apr.

1,660

1,680

1,690

1,330

1,200

1,050

850

855

1,030

793

703

632

568

512

448

433

405

377

357

341

323

308

280

257

246

228

214

204

202

190

Hay

180

167

156

145

140

132

128

124

124

118

112

105

98

95

91

84

80

75

69

64

59

56

52

50

47

45

46

50

50

46

50

fKays ««* 

444 8 69

19,636 5,690

15,546 2,320

158,148.6 5,830

6,483 970

35,205 8,890

49,696 6,780

19, 366 1, 690

2,838 180

5,523 752

892 46

364.0 21

277.2 12

156,271.0 8,890

June

145

270

154

112

105

178

422

752

658

419

308

244

202

171

149

136

138

120

105

93

84

78

69

64

61

60

59

59

56

52

Minimum

6.(

12

128

6.C

66

291

294

190

45

52

178 ' S!E

6.£

July

46

43

43

41

40

39

36

35

33

33

31

30

T28

28

27

26

- 25

24

23

21

21

20

19

18

17

17

20

28

30

27

23

6.0 730

7.0 1,240

8.0 1,840

9.0 2,480

0.0 3,140

above 10.0 -

Aug.

21

1

1

1

9

8

7

15

14

1

1

1

3

3

3

12

12

1

1

1

2

2

1

10

10

1 D

3.8

5.5

9.2

9.2

3.2

3.2

3.2

9.0

1C

1

5.0

3.5

3.2

3

I

10

Mean

3 14.3

655

501

) 433

209

1 257 ileos

646

91 «5

184 '

11^7

9.24

428

Sept.

10

9.8

9.5

9.0

8.8

10

12

11

11

10

10

9.5

9.2

9.0

8.8

8.8

8.8

8.8

8.8

8.8

 8.8

8.8

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

Runoff in 

acre-feet

882

38,950

30,840

313,700

12,860

69,830

98,570

38,410

5,630

10,950

1,770

722

550

310,000
KLAMATH RIVER BASIN 415

Williamson River below Sprague River, near Chiloquin, Oreg.

Location.- Water-stage recorder, lat. 42°34", long. 121°52', in sec. 3, T. 35 S., R. 7 E., 

a quarter of a mile downstream from 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 1947.

Average discharge.- 30 years, 860 second-feet.

Extremes.- Maximum discharge during year, 1,550 second-feet Feb. 16 (gage height, 3.47 

reet); minimum, 462 second-feet July 24, 25.

1917-47: Maximum discharge, 7,660 second-feet Apr. 1, 1943 (gage height, 7.29 

feet); minimum, 320 second-feet Oct. 14, 1920.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Diversions above station for irrigation. Manipulation of gates at dam above station 

causes fluctuation at times.

Cooperation.- oper Water-stage recorder inspected by employee of The California Oregon Power

~fro7

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet) ^

2.2 

2.4 

2.6 

2.8

470

570

705

870

3.0 

3.2 

3.4

1.O6O 

1,260 

1;480

Discharge, in second-feet, water year October 1946 tc 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.

a570

h564

a570

a570

a 580

a610

h628

a 640

a 600

h642

a630

a630

a635

h635

a630

a620

h616

a620

a625

a630

h635

a630

a630

h628

a630

a640

a650

h691

a670

a680

h698

Nov.

a650

h635

a635

a635

a635

aS35

h635

a635

a635

a635

h635

a635

a635

h635

a635

a635

a 640

h642

a660

a 680

h705

a760

a730

a710

h705

a740

a750

a740

a730

a730

-

Dec.

a750

h753

a740

721

721

721

745

753

745

721

705

705

698

691

705

705

700

700

680

656

670

677

670

670

670

677

677

663

656

628

609

Jan.

649

622

609

622

616

642

649

649

642

670

656

670

642

602

506

564

622

622

635

642

642

649

656

670

684

721

691

698

691

677

635

Feb.

596

713

691

684

684

691

691

691

691

698

713

853

951

1,040

1,290

1,450

1,380

1,100

988

942

906

897

888

897

888

888

888

870

_

_

-

Month

December. ..................................

Calendar year 1946 ......................

April ......................................

May. .......................................

July

September. .................................

Water year 1946-47 ......................

Mar.

862

870

853

844

844

844

853

836

828

844

862

888

998

1,030

979

933

915

915

906

897

888

879

879

879

888

924

915

879

721

753

879

Apr.

870

870

1,080

1,030

988

979

1,020

960

924

888

870

870

862

810

819

828

836

844

870

879

915

942

960

942

810

888

897

888

870

836

Secondfcot-days

21,582

378,074

19 945

15,150

245,817

May

810

819

663

677

737

819

794

794

836

819

777

785

802

1,040

777

713

677

656

642

602

576

537

532

548

532

526

532

532

537

570

590

Maximum

753

3,080

520

1,450

June

602

609

616

616

635

635

642

649

663

670

677

677

684

684

677

670

635

622

609

609

609

602

590

576

570

564

554

554

542

542

-

Minimum

609

500

506

596

526

542

466

488

466

July

537

526

515

510

510

510

510

506

506

502

502

502

497

497

492

492

488

488

484

488

488

492

548

492

479

488

484

502

502

506

506

Aug.

506

510

506

506

506

506

506

502

502

497

492

492

492

492

492

484

474

484

484

474

466

466

470

479

488

492

497

497

497

492

492

Mean

696

1,036

643

502

505

673

Sept.

497

497

502

497

497

488

502

502

502

502

502

506

506

506

502

502

502

506

506

506

510

510

515

510

510

510

510

510

515

520

-

Runoff in 

acre-feet

42,810

749,900

42 150

36*86O

30 840

30 230

30,050

487,600

a Ho gage-height record; discharge computed on basis of records for Sprague River near Chiloquin. 

h Computed from staff-gage reading.
416 KLAMATH RIVER BASIN

Upper Klamath Lake near Klamath Falls, Oreg.

Location.- Water-stage recorder, lat. 42°15', long. 121°4(8', in SW£ sec. 19, T. 38 S., R. 

9 hi., 1 mile upstream from outlet of Upper Klamath Lake and 2 miles northwest of 

Klamath Falls, Datum of gage is 4,098.22 feet above mean sea level, datum of 1929, or 

4,100.00 feet above datum of Bureau of Reclamation. Gage readings have been reduced to 

elevations above Bureau of Reclamation datum.

Records available.- May 1904 to September 1947.

.Extremes.- Maximum elevation during year, 4,142.32 feet June 20; maximum daily, 4,141.92

 feet June 20; minimum, 4,136.91 feet Nov. 22; minimum daily,'4,137.41 feet Nov. 22. 

1904-47: Maximum elevation, 4,144.98 feet about Apr. 20, 1904, from high-water 

marks; minimum recorded, 4,135.55 feet Oct. 30, 1944.

Remarks.- Reservoir is formed by concrete dam' at outlet of natural lake, completed in 1921, 

replacing a temporary dam built in 1919; storage began Apr. 15, 1919. Capacity, 584,000 

acre-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 

high stages is partly controlled by diking. Lake elevations, particularly extremes, 

are very much affected by wind. Contents given herein represent those above elevation 

4,135 feet.

Cooperation.- Capacity table and water-stage recorder inspections furnished by The 

California Oregon Power Co.

Elevation, In feet, water year October 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.

38.82

38.52

56.72

38.75

38.86

38.72

38.66

38. 6O

38.55

38.65

38.53

38.53

38.53

38.61

38.71

38.58

38.44

38.41

38.33

38.24

38.28

38.48

38.49

38.38

38.56

38.59

38.50

38.51

38.49

38.36

38.28

Nov.

38.67

38.43

38.39

38.38

38.35

38.37

38.57

38.59

38.41

38.59

38.35

38.42

38.34

38.27

38.80

38.21

38.04

37.81

38. 20

38.11

37.79

37.41

38.32

38.37

38.18

38.35

38.43

38.47

38.53

38.62

-

Dec.

38.50

38.53

38.26

38.40

38.45

38.53

38.43

38.47

38.56

38.56

38.56

38.51

38.41

38.39

38.48

38.76

38.79

38.55

38.52

38.53

38.54

38.54

38.54

38.56

38.57

38.68

38.69

38.61

38.63

38.163

38.62

Jan.

38.63

38.61

38.59

38.57

38.57

38.57

38.56

38.55

38.55

38.54

38.52

38.52

38.53

38.56

38.54

38.54

38.54

38.56

38.58

38.61

38.63

38.65

38.66

38.70

38.69

38.77

38.79

38.84

38.88

38.96

38.97

Feb.

39.00

39.04

39.10

39.12

39.14

39.16

39.17

39.20

39.21

39.22

39.05

39.29

39.37

39.51

39.56

39.67

39.97

39.78

39.81

39.84

39.88

39.95

40.00

40.04

40.16

40.26

40.23

40.15

_

-

Mar.

40.07

39.87

40.17

40.42

40.37

40.33

40.34

40.35

40.29

40.47

40.59

40.63

4O.65

40.70

40.73

40.78

40.81

40.88

tO. 96

40.94

40.94

40.98

4O.97

40.93

41.01

41.09

41.07

40.98

40.58

40.91

41.11

Apr.

41.24

41.18

41.52

41.38

41.34

41.35

41.34

41.35

41.41

41.48

41.43

41.44

41.44

41.49

41.50

41.56

41.56

41.54

41.63

41.66

41.67

41.67

41.66

41.63

41.58

41.55

41.54

41.41

41.52

41.50

Hay

41.47

41.47

41.44

41.52

41.50

41.37

41.44

41.66

41.84

41.62

41.51

41.49

41.51

41.50

41.51

41.51

41.54

41.54

41.44

41.44

41.41

41.41

41.36

41.29

41.27

41.04

41.29

41.26

41.24

41.20

41.11

June

40.94

41.16

41.30

41.27

41.31

41.18

41.09

41.42

41.54

41.73

41.57

41.57

41.68

41.66

41.62

41.58

41.66

41.73

41.82

41.92

41.76

41.64

41.66

41.67

41.67

41.65

41.61

41.55

41.45

41.36

-

July

41.34

41.35

41.37

41.31

41.26

41.21

41.16

40. 09

40.07

41.06

40.96

40.90

40.92

40.93

4O.96

40.91

40 .'83

40.82

40.80

40.74

40.67

40.66

40.61

40.54

40.40

40.21

40.21

40.33

40.37

40.38

4O.33

Aug.

40.32

40.24

40.24

4O.25

40.24

40.21

40.12

40.11

40.13

4O.04

40.01

39.94

39.94

39.90

39.88

39.78

39.74

39.70

39.64

39.73

39.57

39.50

39.49

39.46

39.32

39.26

39.34

39.22

39.10

39.11

39.22

Sept.

39.13

39.16

39.03

39.07

39.05

38.96

38.98

38.89

38.99

38.91

38.86

38.82

38.81

38.84

38.72

38.89

38.73

38.64

38.64

38.58

38.54

38.52

38.51

38.41

38.49

38.41

38.47

38.46

38.44

38.36

-

Note.- Add 4,100 feet to obtain elevations above mean sea level, Bureau of Reclamation datum.

Monthly elevation and contents, water year October 1946 to September 1947.

Date

Dec . 31 ....................

Sept .30 ....................

Water year 1946-47.......

Elevation 

(feet)

4,138.62

-

4,138.35

-

Contents 

(acre-feet)

205,400

216,300

-

200,000

-

Change in contents 

during month 

(acre-feet)

-17,600

+8.5OO

-81,300

-80,400

-46,800

-23,000

Note.- To compensate for wind effect, elevation given for end of month is 

mean of elevation for last 3 days of that month and first 3 days of following month.
KLAMATH RIVER BASIN 417

Link River at Klamath Palls, Oreg.

Location - Water-stage recorder, lat. 42°13', long. 121°48', in sec. 32, T. 38 S., R. 9 

E., auO yards upstream from outlet of Keno Canal and three-eighths of a mile upstream 

from bridge on Main Street at Klamath Palls. 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 1947.

Average discharge.- 43 years, 1,536 second-feet (including Keno Canal).

Extremes.- Maximum combined discharge of Link River and Keno Canal during year, 2,990 

second-feet (regulated) Nov. 16; minimum, 131 second-feet Mar. 6, 8, 9.

1904-47: Maximum discharge, 9,400 second-feet May 12, 1904 (gage height at bridge, 

7.30 feet); minimum, 12 second-feet (regulated) Mar. 22, 1945; minimum daily, 17 secondfeet (regulated) Dec. 13, 1937.

Remarks.- Records good. Regulation since April 1919 by Upper Klamath Lake. Water diverted 

aoove station by the 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 Co.

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.

1,640

1,620

1,620

1,640

1,660

1,630

1,640

1,580

1,620

1,620

1,570

1,560

1,560

1,560

1,570

1,570

1,590

1,650

1,720

1,810

1,830

1,520

1,420

1,430

1,440

1,240

1,460

1,700

1,890

1,900

1,980

Nov.

1,940

1,750

1,770

1,910

2,010

2,040

 1,980

1,850

1,560

1,540

1,750

1,880

1,860

1,830

1,820

1,760

2,020

1,940

1,620

1,370

1,360

1,120

1,500

1,680

1,800

1,490

1,470

1,540

1,540

al,680

-

Month

October. ............

November. ...........

December. ...........

Calendar year 1946

January. ............

April...............

May.................

July. ...............

Water year 1946-47

Deo.

1,850

1,980

1,740

1,570

1,480

1,570

1,580

1,570

1,740

1,900

1,970

1,870

1,790

1,910

1,920

1,900

1,560

1,560

1,560

1,550

1,550

1,450

1,310

1,260

1,170

1,210

1,130

1,080

1,040

1,240

1,630

Jan.

1,560

,820

,870

,860

,680

,600

,760

1,760

1,830

1,870

1,750

1,560

1,460

1,410

1,390

1,380

1,270

916

801

865

915

790

823

833

786

658

814

809

589

510

516

Feb.

432

48O

589

624

617

960

996

1,160

951

937

565

399

246

185

175

177

179

175

177

180

245

177

270

160

142

275

280

139

_

-

Mar.

139

137

143

147

139

131

305

131

131

404

137

136

137

135

136

137

143

139

185

141

141

138

140

137

274

284

319

355

221

135

236

Apr.

327

493

510

505

719

644

738

830

820

692

682

662

664

666

681

691

633

594

600

594

594

566

506

500

500

494

494

490

500

389

-

Hiver Including Keno Canal

Maximum

1 , 930

2,040

1,980

3,560

1,870

1,160

404

850

961

958

1,450

1,500

1,430

2,040

Minimum

1,240

1,120

1,040

292

510

131

327

312

147

557

1,360

131

Mean

1, 621

1,713

1,569

1,551

1,240

425

181

593

484

413

1,087

1,291

1,399

1,006

Runoff in 

acre-feet

99 65O

101, 900

96,480

1,123,000

76,270

23 590

11^130

35,260

29,760

24 590

66^840

79 370 33)250

728,100

Hay

313

312

371

327

329

330

433

355

358

417

336

615

595

536

650

359

350

350

424

346

654

760

740

683

736

819

961

573

327

322

324

June

322

219

156

150

154

151

150

149

149

152

147

147

470

321

323

321

323

326

615

694

538

556

603

595

697

687

595

958

869

860

-

"A" Canal

(runoff In 

acre-feet)

4,850

0

0

228,100

0

0

0

15,370

21 | 920

59,460

42,170

25,170

217,900

July

1,030

892

879

695

557

650

921

1,020

1,160

1,430

1,450

1,200

1,020

1,080

1,280

1,390

1,340

1,310

1,400

1,300

1,090

1,210

1,260

1,330

1,440

1,090

737

979

813

1,030

716

Aug.

862

696

923

997

1,060

1,080

1,090

1,100

1,090

1,190

1,170

1,250

1,340

1,500

1,490

1,480

1,480

1,480

1,480

1,490

1,470

1,460

1,470

1,360

1,460

1,370

1,460

1,440

1,420

1,430

1,430

Sept.

1,430

1.36O

1,420

1,420

1,420

1,410

1,410

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,390

1,390

1,390

1,390

1,390

1,390

1,390

1,360

1,400

1,410

1,400

1,400

1,400

-

River Including Keno and 

"A" Canals

Runoff in acre-feet ean

104,500 1,700

101,900 1,712 

96,480 1,569

1,351,000 1,866

76,270 1,240

23 590 425

11^130 181

50,630 851

78,750 1,281 

46,510 782

126,300 2,054

121,540 1,977 

108,420 1,822

946,000 1,307

a No gage-height record; discharge computed on basis of records for East Side power plant.
418 KLAMATH RIVER BASIN

Klamath River at Keno, Oreg.

Location.- Water-stage recorder, lat. 42°08', long. 121°58', in SE£ sec. 3S, T. 39 S., R. 

y J£., 2 miles west of Keno and 5 miles upstream from Spencer Creek.

Drainage area.- 3,920 square miles, not including Lost River or Lower Klamath Lake Basins.

Kecoras available.- June 1904 to December 1913, January 1930 to September 1947.

Average discharge.- 26 years, 1,526 second-feet.

.Extremes (regulated).- Maximum discharge during year, 2,190 second-feet Nov. 18 (gage 

neignt, b.3U reetj; minimum, 151 second-feet Apr. 22 (gage height, 2.30 feet).

1904-13. 1930-47: 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 good except those for period of no gage-height record, which are fair. 

Diversions above station for irrigation. Lost River diversion canal enters or diverts 

from Klamath River above station. (See records for Lost River diversion canal near 

Olene and diversion from Klamath River to Lost River near Olene.) Diversions through 

Midland Canal beginning July 1, 1947, to Klamath Drainage District and through. Klamath 

Strait into Lower Klamath Lake were computed by Bureau of Reclamation from gate openings 

at Midland and Ady. Pumpage into Klamath River at Ady was computed by Bureau of Reclamation from hours of pump operation. Flow regulated by dam at outlet of Upper Klamath 

Lake since 1919 and by low dam on Klamath River at Keno since September 1931.

Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power

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

1415'

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

1,750

1,780

1,780

1,780

1,800

1,810

1,800

1,820

1,870

1,870

1,820

1,810

1,800

1,780

1,800

1,810

1,810

1,87O

1,920

1,98O

1,950

1,680

1,600

1,480

1,360

1,430

1,590

1,780

1,970

2,030

2,050

Nov.

2,O3O

1,940

1,930

1,990

2,080

2,080

1,970

1,840

1,630

1,680

2,010

2,100

2,070

2,050

2,030

1,970

2,010

2,050

1,800

1,550

1,460

1,500

1,760

1,740

1,800

1,630

1,330

1,350

1,360

1,480

-

Deo.

1.66O

1,760

1,640

1,38O

1,170

1,270

1,270

1,26O

1,310

1,480

1,600

1,620

1,700

1,620

1,580

1,650

1,540

1.53O

1.55O

1,630

1,690

1,550

1,460

1,390

1,310

1,310

1,250

1,180

1,260

1,540

1,750

Month

November. .............

December ..............

Calendar year 1946..

March .................

April .................

May . ... .

June ..................

July..................

August ................

September .............

Water year 1946-47..

Jan.

1.70O

1,920

2,060

2.08O

1,850

1,620

1,610

1,620

1,620

1,640

1,550

1,340

1,170

1,040

al,07O

al.lOO

a960

a630

574

574

641

704

695

a.86

659

54O

596

564

512

445

438

Secondfoot-days

55,380

54,220

45,910

631,367

34.2O8

1O,724

12.5O9

8,363

14,673

2O, 972

26 342

39)896

45,880

369,077

Feb.

456

445

448

445

452

635

950

851

668

686

560

451

313

202

2O2

332

389

364

244

2OO

198

193

235

232

186

181

179

227

_

-

Mar.

344

368

448

442

434

434

431

431

424

389

392

392

392

392

392

396

396

389

350

368

375

375

375

375

406

462

434

497

524

372

310

Apr.

337

301

394

444

298

373

524

516

512

384

241

190

293

406

331

208

153

155

153

155

155

153

186

215

212

210

210

210

215

229

-

May

301

396

392

417

448

438

438

438

428

442

445

448

445

448

410

301

304

325

35O

372

498

650

731

718

722

760

912

7OO

406

28O

310

Discharge in second-feet

Maximum

2,050

2,100

1,760

4,390

2,080

950

524

524

912

1,020

1,19O

1,580

1,650

2,100

Minimum Mean

1,360 1,786

1,330 1,8O7

1,170 1,481

361 1,730

438 1,103

179 383

310 4O4

153 279

280 473

347 699

466 850

740 1,287

1,410 1,529

153 1.011

June

347

608

1,020

888

659

659

659

650

650

618

587

560

564

574

610

65C

646

641

664

84C

845

835

84C

830

810

805

726

664

760

763

-

Runoff in 

acre-feet

109,800

107 /5OO

91,060

1,252,000

67,850

21,270

24,810

16,590

29.10O

41.6OO

52,250

79,130

91,000

732,OOO

July

87 O

707

524

47O

466

597

918

1,000

1.08O

1,190

1.03O

890

880

885

835

.972

906

901

906

918

912

896

901

978

1,050

780

67O

825

825

820

74O

Aug.

740

840

956

1,090

1.O6O

1,080

1,070

1.O6O

1.O6O

1,090

1,230

1,330

1,380

1,390

1,370

1,390

1,400

1,400

1,390

1,390

1,400

1,410

1,430

1,510

1,580

1,570

1,540

1,520

1,510

1,380

1,330

Diversion 

in 

aore-feett

2,560

6,430

16,770

65,610

13,54O

16,750

0

589

1,080

365

1,880

3,140

835

63,940

Sept.

1,410

1,530

1,550

1,540

1,560

1,590

1,620

1,650

1,630

1,620

1,610

1,610

1.6OO

1,580

1,540

1,530

1,530

1,510

1,520

1,5OO

1,460

1,460

1,470

1,470

1,460

1,470

1,470

1,470

1,460

1,460

-

Pumpage 

at Ady 

(acre-feet)

4,520

3,720

3,73O

48,750

3,770

7,47O

9.6OO

6,760

5,140

6,010

2,470

4,000

1,350

58,54O

t Includes diversion to Midland canal and diversion at Ady to Klamath Strait. 

a Ho gage-height record) discharge computed on basis of records of operation of power plant 

miles upstream.
KLAMATH RIVER BASIN 419

Klamath River below Pall Creek, near Copco, Calif.

Location.- Water-stage recorder, lat. 41°58', long. 122 0 22', in NE£ sec. 36, T. 48 N., R. 

b W., 500 feet downstream from Pall Creek, half a mile downstream from Copoo No. 2 

plant of The California Oregon Power Co., and 1 mile south of Copco post office. Altitude of gage, 2,310 feet (from river-profile map).

Drainage area.- 4,370 square miles.

Records available.- October 1928 to September 1947. 

site aoove Fan Creek.

October 1923 to September 1928 at

Average discharge.--24 years, 1,492 second-feet (including Pall Creek).

Extremes.- Maximum discharge during year, 3,570 second-feet (regulated) Apr. 14 (gage 

height, 4.76 feet); minimum, 243 second-feet (regulated) Oct. 8, July 3 (gage height, 

1.60 feet); minimum daily, 272 second-feet Feb. 16, Aug. 17.

1923-47: Maximum discharge, 9,660 second-feet Apr. 27, May 3, 1938 (gage height, 

7.39 feet); minimum, about 10 second-feet above Pall Creek several times in 1925, 

1926; minimum daily, 83 second-feet at present site Aug. 2, 1931.

Remarks.- Records good. Diversions and regulation above station.

Cooperation.- opera Water-stage recorder inspected by employee of The California Oregon Power

Co.

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.

2,160

2,160

2,100

2,190

1,970

1,050

2,180

2,140

2,160

2,180

2,160

1,850

987

2,190

2,220

2,250

2,290

2,220

2,230

981

2,000

1,880

1,960

2,030

2,110

2,120

1,210

2,170

2,170

2,130

2,170

Nov.

2,150

2,090

1,360

2,150

2,250

2,200

2,190

2,270

2,220

1,220

2,240

2,300

2,250

2,300

2,380

2,350

1,510

1,920

1,990

2,070

2,090

2,180

1,850

1,140

2,040

1,990

2,050

1,260

1,950

1,870

-

Dec.

950

1,900

1,860

1,530

1,850

1,870

1,640

890

1,920

1,920

1,920

1,970

1,970

1,590

812

1,960

2,140

2,150

2,190

2,100

1,620

882

1,970

1,810

996

1,830

1,840

1,840

984

2,180

2,240

Jan.

1,860

2,280

2,420

2,280

638

1,960

1,970

1,920

1,990

1,940

1,490

802

1,750

1,240

1,640

1,400

1,310

742

392

1,010

1,180

1,200

1,020

1,220

454

350

1,140

1,020

958

971

930

Feb.

441

302

1,220

1,O70

892

1,370

1,170

277

281

817

1,240

962

742

712

340

272

1,090

720

382

446

605

300

290

454

626

694

634

770

.

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March........................... ...........

April ......................................

May. ................:......................

June .......................................

July........... ............................

August ......................................

September. .................................

Hater year 1946-47 ......................

Mar.

590

698

1,020

556

533

782

920

300

300

898

538

920

1,010

991

323

330

919

878

838

790

885

515

290

830

943

554

1,230

625

332

402

429

Apr.

801

1,130

1,160

582

300

290

1,140

794

538

703

540

726

295

682

581

664

392

716

439

296

830

514

604

464

480

310

300

586

550

681

Secondfoot-days

61,618

59 ,830

53,344

721,041

41,477

19,119

21 ,169

18,088

23,413

34^484

44 , 332

50,209

455,296

May

1,010

936

596

325

832

814

854

652

783

496

309

1,080

755

938

582

636

602

304

724

1,030

1,240

1,110

1,070

320

305

1,510

798

755

1,060

305

682

Maximum

2,290

2 380

2^240

4,720

2,420

1,370

1 230

liieo

1,510

1,460

1,680 1 900

2^080

2,420

June

296

1,370

1,450

1,300

1,090

1,460

305

300

914

882

866

1,070

1,210

406

300

1,070

1,260

1,280

1,280

1,230

452

305

1,340

1,280

1,140

1,100

1,190

673

-304

1,090

Minimum

981

1,140

812

343

35O

272

290

290

304

296

290

272

290

272

July

1,130

1,110

1,340

314

918

310

1,680

1,650

1,340

1,520

1,580

484

290

1,610

1,400

1,340

1,260

1,310

924

316

1,360

1,340

1,330

1,450

1,440

398

300

1,110

1,320

1,200

1,410

Aug.

1,510

476

804

1,230

1,310

1,260

1,460

1,590

812

696

1,700

1,760

1,840

1,750

1,800

1,280

272

1,750

1,720

1,770

1,760

1,760

1,690

594

1,870

1,800

1,880

1,900

1,900

1,900

488

Mean

1,988

1,994

1,721

1,975

1,338

683

683

603

755

94o

1,112

1J674

1,247

Sept.

812

1,900

1,950

2,010

2,030

2,080

601

2,040

2,050

1,970

1,890

2,040

1.940

606

1,800

1,810

1,790

1,900

1,870

1,750

290

1,840

1,780

1,830

1,840

2,000

1,820

290

1,840

1,840

-

Runoff in 

ao re-feet

122,200

118 ,700

'

1,430,000

82,270

37,920

41 , 990

35,880

46,440

55,960

68,400

87 930

99^590

903,100
420 KLAMATH RIVER BASIN

Klamath River at Somesbar, Calif.

Location.- Water-stage recorder, lat. 41°23 I , long. 123°29', in NE^ sec. 4, T. 11 N., R. 

b £., 300 feet downstream from Salmon River and 1 mile west of Somesbar post office. 

Altitude of gage, about 450 feet (from topographic map).

Drainage area.- 8,480 square miles.

Records available.- October 1927 to September 1947.

Average discharge.- 19 years (1927-29, 1930-47), 6,563 second-feet.

Extremes.- Maximum discharge during year, 26,700 second-feet Nov. 19 (gage height, 15.82 

reet); minimum, 826 second-feet (regulated) Sept. 30.

1927-47: 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 (regulated) Aug. 26, 1931. 

Flood of Feb. 21, 1927, reached a stage of 50.8 feet.

Remarks.- Records excellent. Flow considerably regulated by reservoirs and power plants 

above station. Large diversions above station for irrigation.

Rating table, water year 1946-47 (gage height. In feet, 

and discharge, in second-feet)

4.5 1.11O 6.5 3,880 10. 0 

4.9 1,530 6.8 4,420 13.0 

5.3 2,040 7.5 5,750 15.0 

5.7 2,600 8.0 6,750 

6.0 3,050 9.0 8,900

Discharge, in second- feet, water year Octcber 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.

2,740 

3,070 

3,260 

3,150 

3,250

3,010 

2,170 

2,940 

3,150 

3,170

3,160 

3,140 

2,790 

2,010 

2,820

3,160 

3,300 

3,350 

3,260 

3,340

2,700 

4,330 

4,150 

3,450 

3,350

3,320 

3,300 

2,420 

3,170 

3,330 

3,340

Nov.

3,440 

3,380 

3,220 

2,570 

3,200

3,320 

3,360 

3,360 

3,400 

3,370

2,430 

3,190 

3,370 

3,310 

3,420

3,520 

3,600 

8,900 

17,900 

8,550

6,150 

9,980 

18,100 

10,400 

7,280

9,190 

9,760 

12,500 

10,400 

8,610

Dec.

7,420 

6,350 

7,190 

9,280 

8,000

7,480 

6,830 

6,430 

5,500 

5,890

5,790 

5,770 

5,850 

6,150 

6,170

6,090 

6,130 

5,930 

5,690 

5,520

5,350 

4,900 

3,920 

4,690 

4,570

3,850 

4,590 

4,530 

4,430 

3,620 

4,350

Jan.

4,720 

4,260 

4,500 

4,610 

4,420

3,O70 

3,800 

4,060 

3,990 

4,010

4,060 

3,610 

2,920 

3,780 

3,130

3,460 

3,210 

3,100 

2,640 

2,430

2,430 

2,900 

3,160 

3,620 

4,280

8,420 

6,250 

6,070 

5,450 

5,330 

4,950

Feb.

4,700 

4,690 

5,460 

6,110 

6,090

5,870 

6,390 

6,530 

5,810 

5,640

7,360 

S3, 700 

17,900 

12,300 

9,880

8,590 

7,590 

7,510 

6,770 

5,990

5,670 

5,290 

5,120 

4,700 

4,570

4,800 

4,690 

4,500

Month

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Ua.ro 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ..................................

mber. ...................................

lendar year 1946 

ary. . .

h..... ............................. ...

1.. ....................................

st .....................................

ember. .................................

ter year 1946-47 ......................

Mar.

4,460 

6,050 

7,630 

7,380 

6,290

5,730 

5,640 

5,640 

6,760 

19,700

15,900 

11,500 

9,910 

9,310 

9,160

8,770 

8,660 

9,360 

9,520 

9,000

8,350 

8,220 

8,330 

7,400 

7,130

6,960 

6,350 

6,610 

6,690 

8,720 

9,550

Apr.

8,420 

8,110 

8.O60 

7,700 

7,000

6,450 

6,150 

6,730 

6,790 

6,350

6,310 

6,370 

6,940 

7,590 

8,330

8,640 

8,570 

7,720 

7,150 

7,060

6,310 

6,110 

5,770 

5,480 

5,410

5,370 

5,330 

5,280 

5,520 

5,640

Seoondf cot-days

97,100 

193,180 

178,310

2,825,100

126,690 

204,220 

260,680 

202,660 

139,060 

106,490 

69,090 

70,430 

68,680

1,716,590

Peak discharge.- Nov. 19 (2:30 a.m.) 26,700 sec. -ft.:

11,400 

19,200 

24,500

tc September 1947

May

5,850 

6,900 

7,170 

6,630 

6,090

5,950 

5,990 

5,670 

5,330 

4,780

4,460 

3,950 

4,260 

4,350 

4,060

4,010 

3,760 

3,710 

3,610 

3,680

4,110 

4,150 

3,950 

3,850 

3,190

2,870 

3,520 

3,640 

3,180 

3,240 

3,150

Maximum

4,330 

18,100 

9,280

31,100

8,420 

23,700 

19,700 

8,640 

7,170 

5,480 

3,020 

2,860 

2,850

23,700

Nov. 23 (1

June

3,570 

4,330 

4,100 

4,380 

4,640

4,950 

4,980 

4,910 

5,480 

4,620

4,250 

3,900 

3,610 

3,520 

3,040

2,720 

3,610 

3,650 

3,480 

3,350

3,210 

2,460 

2,160 

2,500 

2,990

2,670 

2,660 

2,650 

2,100 

2,000

Minimum

2,010 

2,430 

3,620

1,890

2,430 

4,500 

4,460 

5,280 

2,870 

2,000 

1,470 

1,440 

1,160

1,160

July

2,000 

2,370 

2,340 

2,240 

2,220

1,480 

2,000 

1,970 

2,870 

2,610

2,390 

2,, 710 

2,110 

1,470 

1,730

2,520 

2,280 

2,300 

2,280 

1,900

1,560 

1,500 

2,180 

2,110 

2,220

2,670 

3,020 

2,720 

2,350 

2,480 

2,490

Aug.

2,340 

2,470 

2,020 

1,440 

2,090

2,120 

2,210 

2,240 

2,370 

1,980

1,520 

2,070 

2,560 

2,640 

2,620

2,600 

2,230 

1,720 

1,470 

2,410

2,450 

2,540 

2,530 

2,410 

1,860

1,980 

2,540 

2,620 

2,710 

2,860 

2,810

Mean

3,132 

6,439 

5,752

7,740

4,087 

7,294 

8,409 

6,755 

4,486 

3,550 

2,229 

2,272 

2,289

4,703

a.m.) 25,100 sec. -ft.;

Sept.

1,980 

1,160 

2,260 

2,660 

2,720

2,730 

2,850 

1,900 

2,130 

2,770

2,720 

2,550 

2,560 

2,620 

1,840

1,880 

2,420 

2,410 

2,520 

2,600

2,460 

1,640 

1,600 

2,380 

2,400

2,440 

2,530 

2,620 

1,660 

1,670

Runoff in 

acre-feet

192,600 

383,200 

353,700

5,604,000

251,300 

405,100 

517,100 

402,000 

275,800 

211,200 

137,000 

139,700 

136,200

3,405,000

Feb. 12

(10 a.m.) 26,000 sec.-ft.; Mar. 10 (7 a.m.) 21,400 sec.-ft.
KLAMATH RIVER BASIN 421

Smaller reservoirs in Klamath River Basin, Oreg.

Fourmlle Lake Reservoir.- Staff gage, lat. 42°27", long. 122°14', in NW£ sec. 9, T. 36 

S., H.5 E., 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 

1947. Maximum contents observed during year, 9,401 acre-fee^ May 17 (elevation, 

5,995.2 feet); minimum, 1,324 acre-feet Sept. 30. Maximum contents observed during 

periods 1923-30, 1932-47, 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 1923.. Capacity, 13,330 acre-feet between elevations 

5,980 feet (sill of outlet gate) and 6,000 feet (crest of spillway, oh which flashboards are placed to increase contents to 18,100 acre-feet at elevation 6,00b feet). 

Figures given herein represent usable contents. Water is used for irrigation of lands 

near Medford. Gage read one to four times weekly from May 17 to Aug. 12, occasionally 

at other times.

Hyatt Prairie Reservoir.- Staff gage, lat. 42°10', long. 122°28', in sec. 16, T. 39 S., R. 

a K., 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 1947. Maximum contents observed during year, 4,941 acre-feet May 19 (elevation, 5,000.4 feet); minimum observed, 142 acre-feet Aug. 22 (elevation, 4,986.3 

feet). Maximum contents observed during period 1922-47, 17,410 acre-feet May 29, 1938 

(elevation, 5,017.37 feet); no usable contents at times.

Reservoir is formed by rock-faced earth dam, completed by Talent Irrigation District 

in 1923; storage began in December 1922. Capacity, 16,180 acre-feet between elevations 

4,981.7 feet (sill of gate, approximate) and 5,016.0 feet (spillway crest). Dead 

storage negligible. Water used for irrigation near Ashland and Talent. Gage read one 

to six times weekly from June to August, occasionally at other times.

Other reservoirs.- There are six other small reservoirs in Williamson River Basin and 

eignt in Lost River Basin, having a total capacity of 12,300 acre-feet. (See also 

Gerber Reservoir and Clear Lake Reservoir, in "Records obtained by agencies other than 

the Geological Survey," pp. 11-13).

Elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946

Sept. 30.. ...........

Water year 1945-47

Fourmlle Lake Reservoir

Elevation 

(feet)t

1

-

5,993.6 

5,989.0 

5,984.29

5,982.45

-

Contents 

(acre-feet)

3,852 

3,899 

4,215 

4,396

-

4,540 

4,801 

5,296 

6,464 

8,246 

5,196 

2,364 

1,509 

1,324

-

Change In 

contents 

during month 

(acre-feet)

+47 

+316 

+181

-309

+144 

+261 

+495 

+1,168 

+1,782 

-3,050 

-2,832 

-855 

-185

-2,528

Hyatt Prairie Reservoir

Elevation 

(feet)t

:

-

4,998.7 

4,991.3

-

Contents 

(acre -feet)

250 

390 

920 

1,640

-

2,110 

2,760 

3,530 

4,810 

4,780 

4,050 

1,181 

150 

280

-

Change In 

contents 

during month 

(acre-feet)

+140 

+530 

+720

-18

+470 

+650 

+770 

+1,280 

-30 

-730 

-2,869 

-1,031 

+130

+30

t Hour of reading not known.

Note.- Contents interpolated for days on which gage was not read.

854211 O - 49 - 28
422 KLAMATH RIVER BASIN

Sprague River near Chiloquin, Oreg.

Location.- Water-stage recorder, lat. 420 35', long. 121°51', in NE£ sec. 35, T. 34 S., R. 

 / E., It 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 1947. July 1920 to September 1931 at site 

at Mcureaay Kanch, 12 miles upstream; records equivalent except for extremely low

Average discharge,- 26 years (1921-47), 459 second-feet.

Extremes.- Maximum discharge during year, 956 second-feet Feb. 16 (gage height, 2.77 

 feet); minimum, 156 second-feet Aug. 20, 21 (gage height, 1.35 feet).

1920-47: 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.

Rating table, water year 1946-47, except periods of ice effect (gage height, In feet, 

and discharge, in second-feet)

1.3 140 2.3

1.5 207 2.6

1.7 293 2.8

2.0 450

630

830

980

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.

236

232

232

232

236

257

288

293

270

293

270

266

266

266

266

266

266

266

270

275

284

288

284

284

288

293

293

328

293

288

284

Nov.

284

279

279

288

288

284

288

288

293

293

284

284

284

279

279

279

284

288

318

333

353

433

369

343

359

385

385

369

369

374

-

Dec.

379

385

374

*364

359

364

390

406

390

359

353

343

343

338

343

b340

b34O

b330

288

293

313

318

313

318

313

308

308

313

b310

b300

b290

Jan.

b290

b290

b290

b290

b290

b300

b310

b310

b310

b310

308

308

318

3O3

b210

b260

b29O

b300

b300

b310

b310

b310

b310

318

328

369

353

364

369

328

b284

Feb.

248

364

338

*318

318

318

318

323

323

333

338

456

516

594

781

932

830

612

516

462

417

400

385

379

364

359

359

348

_

_

-

Month

October. ...................................

November. ..................................

December. ...................................

Calendar year 1946 ......................

January. ....................................

February. ..................................

March. ................... . . ................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

353

348

343

343

338

343

348

343

336

359

364

385

468

486

439

411

406

406

400

395

390

400

406

411

428

456

439

385

261

308

411

Apr.

Second 

foot-days

8, 453

9 515

10US5

224,811

9,540

12,249

11,911

14,766

10,964

9 239

e',4,76

5 , 881

5,864

115,343

390

417

576

540

516

522

552

498

480

456

456

450

428

406

406

411

428

450

480

510

546

564

582

552

462

552

552

540

534

510

-

May

480

486

328

385

450

504

480

486

480

444

411

a410

a410

a560

a430

a38O

a350

a330

a320

a280

a260

a220

a210

a230

a220

a210

a220

a220

a230

a260

a280

Maximum

328

433

406

2,330

369

932

486

582

560

257

211

211

932

June

a300

h298

a300

a310

a310

313

323

328

348

353

353

359

369

369

353

338

318

303

298

308

303

298

288

279

270

261

257

248

244

240

-

Minimum

23

27

28

19*" 

21C

24f

26

39'

21C

24C

17

15

17£

15<

July

236

236

232

232

227

232

223

215

211

207

203

207

203

207

203

203

203

200

200

200

200

215

257

171

178

175

175

200

207

211

207

Aug.

211

211

211

2O7

200

200

200

196

196

196

200

200

196

196

193

178

171

178

L78

162

159

L62

171

178

189

193

L93

L89

L89

L85

193

Mean

5 273

3 317

3 338

616

) 308

3 437

L 384

) 492'

) 354

) 308

L 209

) 190

) 195

J 316

Sept.

196

196

193

189

185

178

193

189

189

196

196

196

196

196

193

189

196

193

193

196

196

196

200

200

200

200

203

203

207

211

-

Runoff in 

acre-feet

16,770

18,870

20,800

445 , 900

18 920

24^300

23,630

29,290

21,750

18,330

12,840

11,660

11,630

228,800

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Willlamson River below Sprague 

River, near Chiloquin.

b Stage-discharge relation affected by Ice. 

h Computed from staff-gage reading.
KLAMATH RIVER BASIN 423

Cascade Canal near Pish Lake, Oreg.

Location.- Water-stage recorder, lat. 42°24', long. 122°16', in SE£ sec. 30, T. 36 S., R. 

5 K., at divide between Rogue River and Klamath River Basins, 3 miles upstream from 

Pish Lake and 10 miles downstream from point of diversion.

Records available.- June 1924 to September 1947 (irrigation seasons only).

Extremes.- Maximum daily discharge during period May to September, 48 second-feet May 27, 

3u, June 5, 7-10; no flow at times.

1924-47: Maximum discharge recorded, 75 second-feet June 1, 1943 (gage height, 

2.58 feet); no flow at times.

Remarks.- Records good except those for Apr. 30, June 16, 17, Aug. 14 to Sept. 30, which 

are poor. Water stored in Four-mile Lake Reservoir was released to canal during period 

May 16 to Aug. 12. Canal diverts water from Four-mile Creek, in Klamath River Basin, 

and discharges into lava bed lj 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 seocnd-feet. water year October 1946 tc 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. Nov. Dec. Jan. Feb.

Month

December. ..................................

Calendar year ......................

March. .....................................

May. .......................................

September. .................................

The period ..............................

Mar. Apr.

6.2

-

Seccndf cot-days

0

_

May

8.8

11

10

7.8

6.2

5.4

4.5

4.1

5.1

3.3

2.6

£.2

£.0

.9

.7

.6

25

34

37

46

46

46

46

46

45

44

48

47

46

48

47

Maximum

0

_

June

47

47

47

46

48

47

48

48

48

48

46

46

45

45

45

45

a46

46

46

46

46

46

46

46

46

46

46

47

46

46

-

Minimum

0

-

July

46

46

45

45

4£

41

40

37

33

31

29

28

25

£3zi

20

19

16

15

14

11

10

17

45

42

40

37

35

31

31

33

Aug.

29

25

21

19

16

1£

10

8.3

7.8

6.0

4.7

3.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

23 4

5 23

0

_

Sept.

Runoff in 

acre-feet

 } 880

322

0

6,400

a No gage-height record; discharge interpolated.
424 KLAMATH RIVER BASIN

"A" Canal at Klamath Palls, Oreg.

Location.- Water-stage recorder, lat. 42°14i, long. 121°48', in NE£ sec. 30, T. 38 S., R. 

y hi., 300 feet downstream from head gates of canal and 1 mile northwest of Klainath 

Palls Datum of gage is 4,126.22 feet above mean sea level, Bureau of Reclamation 

datum (levels by Bure.au of Reclamation).

Records available.- 'October 1910 to September 1947. 

Average discharge.- 37 years, 196 second-feet.

Extremes.- Maximum daily discharge during year, 1,070 second-feet July 10; no flow Oct. 

11 to Apr. 6.

1910-47: Maximum daily discharge, 1,100 second-feet June 22, 1945; no flow at 

times.

Remarks.- Records good. Canal diverts water from Upper Klainath Lake in NEt sec. 30, T. 

3B~ST, R. 9 E., for irrigation of lands east of Klamp.th 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 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

2b

26

27

28

29

30

31

Oct.

380

328

296

283

260

244

244

196

162

53

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov. Dec. Jan. Feb.

Month

December. ...................................

Calendar year 1946 ......................

March....... ...............................

April ......................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar. Apr.

0

0

0

0

0

0

25

25

25

25

36

73

100

120

165

232

314

383

424

396

383

372

384

418

479

547

596

697

742

789

-

Seccndfcot-days

0

115,009

12,688

109,871

May

813

828

825

815

853

877

870

850

825

755

705

761

779

769

750

742

754

718

744

790

839

916

946

943

923

927

852

744

711

627

448

Maximum

0

1,070

1,010

541

1,070

June

312

268

226

196

137

106

60

32

25

19

27

54

75

130

170

245

222

233

259

310

364

423

565

744

895

976

1,000

986

981

1,010

-

Minimum

0

0

0

0

308

0

July

1,040

1,060

1,04O

961

957

979

1,020

1,040

1,060

1,070

1,030

1,020

992

978

985

990

1,020

1,040

1,020

1,000

1,000

1,000

1,020

1,020

971

908

860

773

717

703

703

Aug.

687

697

684

69£

712

769

785

794

76E

722

705

70C

755

74S

731

700

655

686

715

707

680

675

645

602

612

639

644

634

616

577

517

Mean

0

315

423

301

Sept.

525

541

525

537

527

536

521

489

464

426

394

384

394

398

407

428

425

401

360

340

320

308

328

374

407

401

394

390

381

363

-

Runoff in 

acre-feet

0

228,100

0

25,170

217,900
KLAMATH RIVER BASIN 425

Keno Canal at Klamath Falls, Oreg.

Location.- Watt-hour meter, lat. 42°13', long. 121°48', in SW^ sec. 32, T. 38 S., R. 9 E., 

in west-side plant of The California Oregon Power Co., a quarter of a mile upstream 

from Link River bridge at Klamath Falls, with staff gage in canal 200 feet above penstock.

Records available.- October 1923 to September 1947. 

Average discharge.- 24 years, 212 second-feet.

Extremes.- Maximum daily discharge during year, 301 second-feet May 16; minimum daily, 101 

second-feet Mar. 30.

1923-47: Maximum daily discharge, 339 second-feet Feb. 1, 1940; no flow at times.

Remarks.- Records good e*cept those for Apr. 5 to May 15, 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 tipper 

Klamath Lake at Link River storage dam in SE£ sec. 30. Water is used for developing 

power and returned to Link River in SWi sec. 32. Flow controlled by gates at head of 

canal.

Cooperation.- Gage readings and record of electrical output furnished by The California 

Oregon rower Co.

Discharge, in seoond-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

?1

?.?.

23

24

25

26

27

28

29

30

31

Oct.

273

267

275

274

288

276

274

232

269

280

276

269

268

268

280

267

263

264

263

263

263

269

274

279

288

275

287

266

268

260

255

Nov.

265

270

267

269

253

258

258

283

265

289

254

268

261

246

244

239

223

211

245

241

226

198

245

244

235

249

248

249

252

253

-

Dec.

243

240

227

238

239

241

238

238

239

237

236

196

246

246

249

272

286

259

258

258

259

263

259

264

259

259

267

256

258

258

248

Jan.

251

249

247

254

259

265

255

260

253

250

253

251

269

277

259

255

252

255

254

217

281

282

277

283

280

290

294

288

296

258

223

Feb.

226

220

223

222

223

226

220

226

222

219

211

223

200

147

141

143

143

141

144

147

145

149

149

127

111

108

111

108

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March. .....................................

April.......... ............................

Bay. .......................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

. 108

107

107

111

108

106

107

106

106

106

107

106

106

105

106

107

112

109

109

111

111

107

109

107

108

108

103

105

102

101

106

Apr.

107

109

112

111

185

246

255

252

253

255

253

250

252

254

269

271

268

274

272

274

274

274

274

274

274

274

274

270

274

272

-

Secondfoot-days

8,373

7,508

7,736

96,323

8,137

4,875

3,317

7,256

8,637

6,339

8,349

8,226

7,739

86,492

May

272

271

276

274

274

275

280

288

291

297

281

277

280

280

229

301

292

292

293

293

278

278

280

275

278

275

270

275

274

269

269

Maximum

288

289

286

299

296

226

112

274

301

275

275

272

271

301

June

262

166

113

109

111

108

109

108

108

109

109

109

194

273

275

273

273

273

273

274

274

273

268

273

275

273

273

268

267

266

-

Minimum

255

198

196

64

217

108

101

107

229

108

262

258

220

101

July

273

273

272

272

273

268

268

268

267

264

264

264

271

272

274

272

272

272

272

267

267

262

267

266

273

267

265

269

273

268

275

Aug.

267

268

265

267

267

268

272

267

265

266

267

268

265

264

266

265

263

258

258

266

263

262

266

268

267

266

266

265

258

264

269

Mean

270

250

250

264

262

174

107

242

279

211

269

265

258

237

Sept.

271

266

264

262

265

257

259

256

260

260

260

259

259

259

257

255

257

254

254

254

253

25O

253

254

220

264

271

265

263

258

-

Runoff in 

acre-feet

16,610

14,890

15,340

191,040

16,140

9,670

.6,580

14,390

17,130

12,570

16,560

16,320

15,350

171,550
'426 KLAMATH RIVER BASIN

Lost River diversion canal near Olene, Oreg.

Location.- Staff gages above and below head gates at intake of canal at Lost River Dam,

 lat. 42°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 1947.

Average discharge.- 31 years (1912-15, 1919-47), 130 second-feet.

Extremes.- Maximum daily discharge during year, 452 second-feet June 4; no flow at times.

 TST2-47: Maximum discharge, 1,320 second-feet Apr. 11, 1935; no flow at times.

Remarks.- Records fair. Discharge computed from daily record of openings and head on 

gates. Canal diverts water from Lost River 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 1946 tc September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12131

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

183

166

166

162

152

156

159

201

232

238

235

203

170

147

134

118

249

230

200

177

160

127

148

146

142

144

142

138

136

140

138

Nov.

136

137

135

133

124

128

131

132

133

133

133

127

127

125

122

141

130

121

141

160

168

168

165

177

178

181

186

171

166

160

-

Dec.

163

155

147

154

160

168

178

182

173

167

163

158

160

160

147

147

141

151

150

137

133

131

128

137

146

144

145

146

142

148

150

Jan.

132

128

89

56

41

60

53

55

29

13

19

19

23

29

35

32

9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

31

53

83

114

201

271

250

205

155

127

111

97

93

85

79

69

69

67

50

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

May

September ..................................

Water year 1946-47 ......................

Mar.

57

63

70

67

73

82

83

81

76

74

95

139

175

158

108

65

12

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

-

-

-

-

_

-

.

_

-

_

-

-

_

-

.

-

-

-

-

.

-

-

-

-

_

-

-

_

0

-

Secondfoot-days

5,239

4,369

4,711

91,563

4,806

34,320

May

25

89

51

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

72

160

196

Maximum

249

186

182

1,100

271

196

171

221

452

June

217

349

406

452

421

373

342

336

330

310

305

301

286

252

240

232

233

225

212

208

205

179

134

112

0

0

0

0

0

0

-

Minimum

118

121

128

0

0

0

45

56

0

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

17

Aug.

100

166

170

125

125

93

74

45

57

90

110

122

94

60

50

98

119

69

70

70

62

106

148

170

171

159

122

126

142

139

161

Mean

169

146

152

251

78.9

19.2

222

.5

110

160

94.0

Sept.

197

213

215

221

215

202

206

199 193'

196

201

193

185

190

189

163

155

155

155

153

147

142

133

131

120

97

68

60

56

56

-

Runoff in 

acre-feet

10,390

8,670

9,340

181, 600

1,630

4,380

2,930

0

1,180

13,210

34

6,770

9,530

68,060
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 

SWfsec. 30, T. 39 S., R. 10 E., 5 miles southwest of Olene.

Records available.- April 1931, when diversion began, to September 1947. 

Average discharge.- 17 years, 36.2 second-feet.

Extremes.- Maximum daily discharge during year, 461 second-feet Apr. 24; no flow at times. 

1931-47: 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 last 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 redlverged for irrlgatiion of lands near Tule Lake.

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 tc September 1947

Day

1

2

3

4

5

6

7

8

11

12

13

14

15

16

17

18

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

0

0

31

42

42

42

42

42

42

42

42

42

42

42

42

42

42

Feb.

42

42

42

42

42

42

42

42

42

14

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

May. .......................................

September . .................................

Water year 1946-47 ......................

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

40

59

102

Apr.

129

165

224

280

318

368

417

453

452

451

452

453

455

452

450

449

451

453

459

458

460

459

460

461

386

271

242

218

149

74

Seccndf cot-days

0

3,850

619

201

397

109

0

15,686

May

12

0

0

0

0

0

40

63

25

0

0

33

58

23

0

0

0

0

0

5

58

57

23

0

0

0

0

0

0

0

0

Maximum

0

0

313

42

42

102

461

63

70

216

0

461

June

0

c

c

0

0

0

c

c

0

0

0

0

c

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

39

70

0

Minimum

(

(

(

7

(

(

(

July

11]

106

105

106

44

0

0

28

54

83

122

126

127

128

126

167

214

216

166

151

150

149

148

128

87

65

65

27

0

0

0

Aug.

.

_

_

-

,

_

_

-

_

_

_

-

.

_

,

-

-

_

_

_

-

.

_

_

_

_

-

Mean

:> 0

) 0

3 0

3 10.5

) 20.0

3 14.0

) 6.5

i 366

3 12.8

) 3.6

) 96.7

) 0

> 0

) 43.0

Sept.

.

_

_

_

-

_

_

_

.

-

_

^

_

-

_

_

_

_

-

.

_

_

_

-

_

_

-

_

-

Runoff in 

acre-feet

0

0

0

7,630

1,230

778

399

21,760

787

216

5,950

0

0

31,120
428 KLAMATH RIVER BASIN 

Fall Creek at Copco, Calif.

Location.- Staff gage, lat. 4V58', long. 122°22', in NE£ sec. 36, T. 48 N., R. 5 W., 

J..5UU feet upstream from mouth and 0.8 mile south of Fall Creek power plant and Copco 

post office.

Records available.- July 1928 to September 1947. 

Average discharge.- 19 years, 34.4 second-feet.

Extremes.- Maximum discharge observed during year, 62 second-feet Nov. 19 (gage height, 

l.bs reet, from rating curve extended above 50 second-feet); minimum observed, 31 

second-feet Nov.' 22, Aug. 13-17, 26.

1928-47: Maximum discharge, 241 second-feet Feb. 28, 1940 (gage height, 2.64 feeb, 

observed at peak), from rating curve extended above 80 second-feet; minimum observed, 

12 second-feet (regulated) May 21, 1941 (gage height, 0.76 foot), from rating curve 

extended below 28.second-feet; minimum daily, 24 second-feet on many days during June 

to September 1937.

Remarks.- Records fair. Gage read once daily. No 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.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

Z

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

34

34

34

34

34

34

35

35

34

34

35

35

34

34

34

34

a34

35

34

34

36

37

34

34

34

34

34

33

33

33

33

Nov.

a34

34

33

33

33

33

33

a33

a33

33

a33

33

33

33

33

33

32

34

62

36

35

31

37

33

34

34

35

35

34

34

-

Dec.

34

34

36

a36

37

35

34

35

34

34

37

37

36

36

36

36

35

36

36

35

36

35

35

35

34

a34

34

33

33

33

32

Jan.

33

a34

34

34

33

33

34

34

34

35

36

35

35

a34

34

35

34

34

35

35

35

36

35

36

35

38

37

37

36

37

36

Feb.

36

37

37

37

37

37

37

37

37

37

37

57

46

41

40

41

39

37

37

37

37

37

37

36

36

37

37

37

_

-

Month

December . ..................................

Calendar year 1946 ......................

March. .....................................

April ......................................

Mau

July .......................................

September ..........................:.......

Water year 1946-47 ......................

Mar.

37

37

37

37

36

36

36

37

37

42

40

37

37

37

37

37

37

37

37

37

37

37

37

37

36

36

39

36

36

37

37

Apr.

37

37

37

37

37

37

36

36

38

37

37

37

37

37

37

37

a36

36

37

36

36

36

a36

36

37

36

36

35

35

35

-

Seccndfoot days

1,083

14,328

1 150

990

12,686

May

35

a35

35

35

a35

a35

35

35

35

a35

35

34

a34

34

34

34

34

33

34

a34

34

34

34

34

34

34

34

35

35

a34

34

Maximum

37

198

34

62

June

36

35

35

33

34

35

35

35

35

a34

34

34

34

34

34

36

35

34

34

34

34

34

a34

a33

35

33

33

33

33

33

-

Minimum

32

31

32

31

July

33

33

33

a33

a34

34

33

33

33

33

33

33

33

a33

a33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

Aug.

33

33

33

33

33

33

33

33

33

33

33

a32

31

31

31

31

31

a32

33

32

32

32

32

32

a32

31

a32

32

33

33

33

Mean

34.9

39.3

 ZQ A

32 3

33.0

34.8

Sept.

a33

33

33

33

33

33

33

33

33

33

33

33

a33

33

33

33

33

33

34

34

33

33

33

33

33

a33

a32

32

33

33

-

Runoff in 

acre-feet

2,150

28., 430

1,960

25,150

a No gaga-height record; discharge Interpolated.
KLAMATH RIVER BASIN 429

Little Beaver Creek at Pinehurst, Oreg.

Location.- Water-stage recorder, lat. 42°07', long. 122°22', in NVf£ sec. 4, T. 40 S., 

H. i &., 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 1947 in reports of Geological Survey, 

uctooer 1943 to September 1945 In files of State engineer.

Extremes.- Maximum discharge during year, 120 second-feet Feb. 12 (gage height, 2.53 

feet); minimum, 0.1 second-foot Aug. 17, 18.

1943-47: Maximum discharge, 143 second-feet Dec. 28, 1945 (gage height, 2.69 feet); 

minimum, that of Aug. 17, 18, 1947.

Remarks.- Records good except those for Oct. 1 to Jan. 31, which are poor. One small 

diversion above station. No regulation.

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

IS

16

17

1ft

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.0

1.3

1.5

1.5

1.6

1.5

1.4

1.5

1.3

1.4

1.6

1.4

1.6

1.6

1.8

1.8

2.2

2.1

2.1

2.2

2.2

3.7

2.1

1.7

2.1

2.7

3.3

2.8

3.0

3.7

3.1

Nov.

3.5

2.1

2.1

2.1

2.3

2.3

2.3

2.3

2.3

5.3

3.0

2.8

3.1

3.1

3.7

3.7

4.2

alO

20

4.8

3.7

22

16

6.1

6.4

6.1

6.4

5.8

4.8

4.2

-

Dec.

3.9

3.7

*4.6

4.0

3.9

5.0

4.2

5.3

4.4

4.0

7.8

7.8

7.2

6.4

9.0

7.5

5.0

5.3

4.0

3.7

3.7

3.5

3.1

3.0

3.1

4.4

5.6

bS

b4

b4

b£

Jan.

b4

b4

b4

b4

b4

4.6

4.4

4.2

4.0

b4

b3

b3

b3

b3

b3

*b2.8

b3

b3

5.8

5.6

5.0

4.8

7.8

9.8

10

15

b7

b6

b5

b4

b3

Feb.

6.1

8.2

10

9.8

*9.0

8.6

9.0

8.6

8.2

8.2

33

49

20

14

12

14

11

*9.6

8.8

8.0

7.5

6.8

6.3

6.3

6.3

6.1

5.9

5.5

-

_

-

Month

December. ..................................

Calendar year 1946 ......................

April ......................................

May........................................

September. .................................

Water year 1948-47 ......................

Mar.

5.7

8.6

9.6

8.6

7.0

6.6

7.5

a7.0

a9.5

a25

alS

11

9.6

8.8

8.6

8.6

8.8

9.1

9.3

8.8

8.6

11

12

9.9

8.8

8.3

7.8

7.5

8.6

16

11

Apr.

9.1

9.1

9.1

9.3

9.3

8.3

8.0

10

11

9.3

8.8

8.3

8.3

8.3

8.8

9.1

8.8

8.3

7.5

6.1

5.5

5.0

4.8

4.5

4.2.

3.8

3.7

3.7

3.7

3.2

-

Secondfoct-days

150.1

3,217.3

19.2

1,519.1

Hay

3.0

2.7

2.4

2.1

1.7

1.7

1.8

2.1

2.5

2.1

1.9

1.7

1.5

1.5

1.5

1.2

1.2

1.0

1.0

.8

1.0

.9

.9

1.0

1.0

.5

1.9

1.4

1.3

3.0

3.0

Maximum

9.0

44

49

1.1

49

June

4.6

2.5

1.8

1.6

3.1

2.4

2.8

2.7

2.5

1.9

1.6

1.4

1.2

1.2

1.2

3.2

2.8

1.7

1.2

1.1

1.1

1.0

1.0

.9

1.0

.9

1.0

1.0

1.0

.7

-

Minimum

3.0

.5

.4

.2

July

0.7

.8

.6

.3

.3

.2

.3

.3

.3

.2

.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

.3

.3

.4

.6

.7

1.0

1.3

1.4

1.1

1.0

1.0

Aug.

1.0

1.0

.6

.5

.4

.3

.2

.2

.2

.2

.2

.»

.2

.2

.2

.2

.2

.2

.2

.2

.5

.6

.6

.3

.3

.4

.5

.6

.8

.7

.7

Mean

2.03

4.84

8.81

4.96

.64

4.16

Sept.

0.7

.7

.7

.7

.7

.7

1.0

1.1

1.0

.6

.4

.5

.6

.5

.5

.4

.4

.4

.5

.6

.6

.5

.6

.6

.7

.7

.6

.7

.7

.8

-

Runoff in 

ao re-feet

330

298

6,380

305

430

103

38

3,010

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis ot weather records and records for Keene 

Creek near Lincoln, 

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., 

K. ah)., at bridge on State Highway 66, 1^ miles downstream from Keene Creek diversion dam, and 4f miles northwest of Lincoln. Prior to Oct. 18, 1946, recorder at 

site 200 feet upstream at different datum.

Records available.- October 1945 to September 1947 in reports of Geological Survey, 

uecemoer iy<iu 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, 54 second-feet Feb. 12 (gage height, 1.69 feet); 

no now part of Aug. 28.

1940-47: Maximum discharge, 74 second-feet Dec. 28, 1945 (gage height, 2.62 feet, 

site and datum then in use), from rating curve extended above 18 second-feet; practically no flow at times.

Remarks.- Records fair except those for periods of ice effect or no gage-height record; 

wiiicn 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 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.

0.1 

.3 

.2 

.2 

.1

.1 

.1 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

e.3 

e.3 

e.3

.3 

.5 

.5 

.4 

.3

.4 

.4 

.5 

.5 

.5 

.8

Nov.

0.8 

.8 

1.0 

.6

.7

.6 

.6 

.7 

.9 

.7

.8 

.5 

.4 

.5 

.4

.4 

.5 

1.8 

1.8

1.3

.8 

7.1 

3.5 

2.2 

2.3

2.2 

2.5 

2.7 

2.3 

1.8

Dec.

1.6 

1.5 

*1.5 

1.4 

1.3

1.3 

al.4 

al.8 

al.6 

al.5

a4.0 

a4.5 

a4.0 

a3.7 

a5.2

a4.0 

a2.5 

a2.0 

1.6

1.4

1.5 

1.5 

1.3 

1.2 

1.3

1.7 

bl.3 

bl.2 

bl.l 

bl.O 

bl.O

Jan.

bl.O 

bl.O 

bl.o 

bl.O 

bl.O

1.3 

1.2 

1.0 

1.0 

bl.O

b.9 

b.9 

b.9 

b.9 

bl.l

*1.1 

1.0 

1.0 

1.1 

1.9

2.0 

1.6 

1.7 

3.7 

4.7

b3.5 

b2.7 

b2.4 

b2.2 

b2.0 

b2.0

Feb.

2.0 

2.2 

2.9 

3.4 

*3.5

4.0 

4.9 

4.4 

5.1 

4.9

18 

36 

18 

12 

11

13 

12 

8.0 

6.2 

5.5

5.1 

4.7 

4.4 

4.4 

4.2

3.7 

3.7 

3.5

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Us

mber. ...................................

Lender year 1946 

ary . .....

h. .....................................

1. .....................................

St.. ...................................

smber. .................................

ter year 1946-47 ......................

Mar.

3.4 

3.7 

4.0 

4.2 

4.2

3.5 

4.0 

3.8 

4.4

7.1

6.2 

5.1 

4.7 

4.7

4.7 

4.7 

4.4 

4.4 

4.0

3.8 

6.4 

8.3 

6.2 

6.0

5.1 

4.7 

4.4 

4.7 

6.5 

5.5

Apr.

4.9 

4.7 

5.3 

5.3 

6.2

6.5 

7.1 

10 

12 

13

12 

10 

8.9

6.0 

5.3 

4.9 

4.7 

4.4

4.0 

3.7 

3.5 

3.2 

3.0

2.9 

2.4 

2.4 

2.0 

1.4

Secondfoe t-days

9.1 

43.2 

61.9

1,069.1

49. a 

210.7 

151.5 

173.9 

23.9 

22.9 

17.5 

5.3 

3.0

772.7

May

1.3 

1.2 

1.0 

.9 

.8

.7 

.6 

.7 

1.4 

1.1

1.0 

.9 

.8

.6 

.6 

.6 

.6 

.6

.5 

.5 

.4 

.4 

.4

.4

.5 

.5 

.8 

1.2 

1.5

Maximum

0.8 

7.1 

5.2

21

4.7 

36 

8.3 

13 

1.5 

1.9 

1.1 

.6 

.1

36

June

1.8 

1.5 

1.3 

1.4 

1.9

1.0 

.7 

.9 

.8

.6

.5 

.4 

.3

1.0 

.6 

.4 

.4 

.4

.4

.5 

.5 

.4 

.4

.9 

1.0 

.8 

.7 

.6

Minimum

0.] 

.4 

l.C

.]

.S

2.C 

3. A 

1.4 

.4 

.3 

.4 

.] 

.1

.1

July

0.6 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.4 

.5

.4 

.4 

.4

.4 

.4 

.5 

.6 

.6

.6 

.6 

.5 

.5 

.8

.9 

1.1 

.9 

.7 

.7 

.7

Aug.

0.6 

.6 

.6 

.5 

.2

.2 

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Mean

0.29 

I 1.44 

2.00

2.93

1.61 

7.52 

4.89 

5.80 

.77 

.76 

.56 

.17 

.10

2.12

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 

acre-feet

18 

86 

123

2,120

99 

418 

300 

34S 

47 

43 

33 

11 

6.0

1,530

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for Little 

Beaver Creek at Flnehurst.

b Stage-discharge relation affected by Ice.

e Stage-discharge relation not defined; discharge computed en basis of discharge measurement made 

Oct. 21 and engineer's notes.
KLAMATH RIVER BASIN 431

Keene Creek Canal near Ashland, Oreg.

Location.- Water-stage recorder, lat. 42°09', long. 122°30', in NW£ sec. 29, T. 39 S., R. 

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 1947 (some years incomplete).

Extremes.- Maximum daily discharge during year, 47 second-feet July 27; no flow at times.

 1923-47: Maximum daily discharge, 82 second-feet Aug. 2, 1938, July 23, 1939; no 

flow at times.

Remarks.- Records poor. Water released from Hyatt Prairie Reservoir is diverted by this

 canal from Keene Creek in SE£ 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 May 28 to Aug. 22.

Discharge, in seccnd-feet, water year October 1946 tc September 1947

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

o

0

0

o

0

0

-

-

-

_

-

-

-

-

_

-

_

_

-

_

-

-

_

-

_

-

-

_

_

-

Nov. Dec. Jan. Feb.

tlcnth

October 1-7................................

November . ..................................

December. ..................................

Calendar year ......................

January. ...................................

February. ..................................

March...... ................................

April ......................................

May 23-31 ..................................

June .......................................

July... ..........................'..........

August .....................................

September ..................................

Water year ......................

Mar. Apr.

Seccndf cot-days

0

-

-

82.5

424.1

1,160

245

0

-

May

_

_

_

_

-

.

_

_

_

-

.

_

_

_

-

_

_

.

_

-

_

_

0

0

0

0

0

6.5

17

27

32

Uaximun

0

-

-

32

36

47

42

0

-

June

30

30

30

32

23

1.2

0

0

0

0

o

0

2.0

7.3

7.5

6.7

1.6

0

4.4

5.7

6.7

14

14

14

20

36

35

35

34

34

Minimum

0

-

-

0

0

30

0

0

-

July

34

34

34

34

34

33

32

32

32

31

31

31

30

31

31

32

34

42

42

42

42

42

42

43

46

46

47

46

46

42

42

Aug.

42

40

39

26

6.8

7.3

7.8

8.0

8.0

8.0

7.S

5.9

3.0

2.9

3.6

3.8

4.4

4.9

5.1

4.7

4.4

1.8

0

0

0

O

0

0

0

0

0

Mean

o

-

-

9.17

14.1

37.4

7.91

0

-

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

Runoff in 

acre-feet

0

-

-

_

164

841

2,300

486

0

"
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.,

 H. V 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 1947.

Average discharge.- 10 years (1933-41, 1945-47), 153 second-feet.

Extremes.- Maximum discharge during year, 403 second-feet Feb. 13 (gage height, 3.78 

reet); minimum, 11 second-feet July 3.

1933-41, 1944-47: 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 secondfeet were being diverted around gage.

Remarks.- Records good except those for periods of no gage-height record, which are fair.

 Flow partly regulated by reservoir above station. Many diversions above station for 

irrigation.

Rating table, water year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Sept. 9-30)

1.6 12 2.2 45

1.7 16 2.4 64

1.8 20 2.6 87

2.0 31 2.8 118

3.0 169

3.3 250

3.6 340

3.9 450

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.

94

115

123

150

147

140

142

142

142

14O

135

123

123

125

128

128

130

125

128

137

147

150

160

170

180

ISO

170

160

16O

160

155

Nov.

150

150

150

150

150

155

155

160

160

165

155

150

150

155

155

150

150

170

28O

220

200

218

256

347

302

245

220

212

207

193

-

Dec.

188

185

180

201

193

182

182

182

177

177

180

ISO

180

174

174

177

174

169

169

169

174

174

172

172

ISO

185

193

191

182

182

172

Jan.

164

161

156

153

150

153

160

16O

170

170

180

180

182

182

180

170

170

170

ISO

180

180

180

180

19O

210

220

204

201

204

207

204

Feb.

204

204

199

196

193

. 191

191

185

182

182

191

226

347

278

226

220

226

215

201

191

188

182

172

169

169

169

164

150

_

-

Month

Octqjser. ...... .............................

November. ..................................

December. ... ...:............................

Calendar year 1946 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

140

153

191

191

191

177

185

188

188

193

201

188

180

174

164

166

161

156

153

164

164

156

156

166

135

95

94

111

90

103

108

Apr.

Secondfoot-days

4,409

5,680

5,570

55,498

5,551

5,611

4,882

2 383

931

2,312

696

9O4

1.67O

40,599

103

95

150

150

135

132

116

116

113

110

98

98

94

87

76

66

58

54

55

55

44

39

39

42

45

45

37

38

49

44

May

43

37

31

27

28

32

28

25

32

39

41

49

48

34

24

29

26

25

24

17

2O

18

35

24

16

16

16

20

30

43

54

Maximum

18O

347

201

712

220

347

201

150

54

164

51

7O

111

347

June

71

85

77

88

128

128

140

156

164

161

150

140

103

95

85

80

72

57

43

34

32

30

30

30

25

26

27

20

15

20

Minimum

94

15O

169

19

150

150

90

37

16

15

14

16

31

14

July

16

19

14

23

21

19

16

20

26

27

51

30

17

17

15

22

18

15

15

17

21

22

23

18

15

16

23

29

41

4O

30

Aug.

34

35

37

26

22

17

18

19

17

22

22

20

24

37

24

17

19

18

18

22

16

22

26

27

36

33

50

42

49

7O

65

Sept.

50

40

32

39

40

33

31

34

38

39

43

44

56

58

63

65

62

72

79

76

71

61

48

37

33

66

70

81

98

111

 Runoff in 

Mean aore-feet

142 8 7 50

189 11J270

180 11,050

152 110,100

179 11,O10

200 11,130

1 57 9 680

79.4 4^730

30 O 1 850

77^1 4J590

22.5 1,380

£9.2 1 790

55.'? 3)310

111 80,540

Mote.- .Mo gage-height record Oct. 22 to Nov. 21, Jan. 7-12, 16-26; discharge computed on basis of 

recorded range In stage, weather records, and records for Scott River near Port Jones.
KLAMATH RIVER BASIN 433

Scott River near Port Jones, Calif.

Location.- Water-stage recorder, lat. 41°38i35n , long. 123°00'35", in NW£ sec. 28, T. 44 

n., H. 10 V., 150 feet south of road from Fort Jones to Scotts Bar, 1.8 miles upstream 

from Snow Creek, and 10.5 miles downstream from Port Jones. Datum of gage is 2,625.80 

feet above mean sea level (levels by Corps of Engineers).

Drainage area.- 656 square miles.

Records available.- December 1941 to September 1947.

Extremes.- Maximum discharge during year, 2,740 second-feet Peb. 12 (gage height, 7.10 

reet); minimum, 37 second-feet Sept. 25.

1941-47: 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 Sept. 25, 

1947.

Ploodmarks indicate stages of about 14 feet, dates not known.

Remarks.- Records excellent except those for period of no gage-height record, which are 

rair. Many small diversions for irrigation in Scott Valley during summer.

Rating tables, water year 1946-47 (gage height, In feet, and discharge, In second-feet) 

(shifting-control method used Apr. 13-15)

Sept. 1 to Apr. 15 Apr. 16 to Sept. 30

1.4 54 2.6 198 5.0 1,140 1.3 38 2.0 96 3.5 370 

1-6 73 3.0 268 5.5 1,460 1.4 45 2.3 130 4.0 520 

1.8 94 3.4 364 6.0 1,810 1.6 59 2.6 176 4.5 723 

2.0 117 3.8 495 6.3 2,050 1.8 75 3.0 252 5.2 1,130 

2.2 142 4.2 680 

2.4 169 4.6 900

Discharge, in second-feet, water year October 1946 tc 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.

a60 

a62 

a66 

a66 

a64

a62 

62 

63 

63 

62

61 

61 

60 

60 

60

60 

61 

61 

60 

61

63 

68

76 

95 

96

91 

86 

84 

84 

64 

82

NOT.

79

79 

79 

79 

62

84 

85 

86 

86 

87

82 

79 

61 

81 

61

81 

79 

136 

1,020 

569

324 

326 

1,690

540

441 

405 

660 

856 

605

Dec.

462 

402 

384 

540 

507

427 

376 

340 

312 

289

281

272 

260 

264 

276

296 

278 

256 

245 

240

236 

231 

221 

214 

211

211 

211 

206 

201 

198 

194

Jan.

195 

190 

179 

173 

173

162 

177 

175 

172 

172

176 

176 

173 

170 

162

155 

156 

156 

161 

162

159 

156 

159 

169 

169

399 

408 

340 

300 

289 

276

Feb.

270 

272 

289 

281 

270

264 

264 

264 

266 

276

324 

2,030 

1,780 

1,150 

884

752 

655 

576 

515 

476

444

421 

396 

376 

370

364

367 

356

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Maro 

Apr! 

May.

June 

July 

Augu 

Sept

ffa

her. ...................................

niber. ....................................

lendar year 1946 ......................

ctry

1.. ....................................

ember. .................................

ter year 1946-47 ......................

Mar.

334 

381 

503 

507 

434

396 

370 

361 

405 

884

850 

660 

556 

515 

519

553 

610 

702 

806 

840

796 

762 

840 

735 

650

600 

566 

540 

595 

960 

900

Apr.

1

Seocndfoot-days

2,144 

9,676 

9,043

206,938

6,265 

14,956 

19,132 

19,156 

16,246 

6,203 

2,496 

1,626 

1,226

110,391

Peak discharge.- NOT. 23 (10:30 a.m.) 2.280 sec. -ft.;

768 

691 

680 

630 

580

540 

511 

503 

486 

462

451 

451 

480 

600 

790

971 

,100 

941 

825 

804

716 

630 

567 

556 

549

549 

542

575 

590 

614

May

643 

906 

1,110 

1,000 

686

636 

768 

762 

666 

594

527 

466 

467 

448 

416

407 

410 

404 

393 

396

393 

378 

354 

337

322

308

310 

337 

310 

310 

316

Maximum

96 

1,690 

540

2,770

408 

2,030 

960 

1,100 

1,110 

510 

108 

70 

45

2,030

June

344 

402 

380 

352 

337

370 

386 

457 

510 

454

386 

342 

298 

265 

242

242 

265 

256 

234 

212

198 

183

171 

157 

149

136 

126 

120 

117 

110

Minimum

60 

79 

194

56

155 

264 

334 

451 

306 

110 

59 

44 

39

39

July

108 

105 

102 

102 

99

102 

99 

95 

90 

81

83

8J

si

79 

79

74 

74 

72 

71 

71

70 

69 

69 

68 

68

69 

69 

70 

69 

68 

59

Aug.

57 

61 

61 

60 

64

70 

61 

59 

56 

56

56 

55 

53 

53 

52

51 

48 

46 

46 

45

48 

48 

48

47 

46

46 

44 

44

46 

47 

46

Sept.

45 

44 

44 

44 

43

42 

42 

42 

42 

42

41 

41 

41 

40 

40

39 

39

40 

40 

40

39 

40 

40 

40 

40

40 

40 

40 

39 

39

ua«n Runoff in 

Mean acre-feet

69.2 4,250 

329 19,590 

292 17,940

567 410,500

203 12,470 

534 29,660 

617 37 , 950 

639 38,000 

524 32,220 

273 16,270 

60.5 4,950 

52.5 3,230 

40.9 2,440

302 219,000

Pel*. 12 (6:30 p.m.) 2,740 sec. -ft.

it record; discharge computed on basis of records for Shasta River near Yreka.
434 KIAMATH RIVER BASIN

Salmon River at Somesbar, Calif.

Location.- Water-stage recorder, lat. 41"23 I , 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 1947.

Average discharge.- 21 years (1911-13, 1927-29, 1930-47), 1,532 second-feet.

Extremes.- Maximum discharge during year, 8,120 second-feet Nov. 19 (gage height, 7.69

 reet); minimum, 121 second-feet Sept. 15-17, 25-30.

1927-47: 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.

Rating tables, water year 1946-47 (gage height, In feet, and discharge, In second-feet) 

Oct. 1 to Feb. 12 Feb. 12 to Sept. 30

2.9 142 3.4 390 4.8 1,990 2.8 95 3.3 344 4.4 1,540 

3.0 172 3.6 545 5.4 2,980 2.9 127 3.4 417 4.8 2,200 

3.1 212 3.8 720 6.0 4,260 3.0 170 3.6 585 5.4 3,440 

3.2 262 4.0 930 7.0 6,510 3.1 220 3.8 78O 6.0 4,700 

3.3 322 4.4 1.42O 7.2 6,970 3.2 278 4.0 1.O10 6.9 6,68O

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.

163 

184 

217 

200 

188

184 

180 

180 

180 

176

172 

172 

169 

166 

166

166 

180 

196 

188 

196

292 

672 

596 

336 

268

242 

227 

217 

212 

217 

222

Nov.

227 

217 

2O8 

208 

204

200 

200 

200 

192 

196

196 

192 

192 

188 

188

186 

212 

2,250 

4,910 

1,500

952 

2,120 

4,310 

1,930 

1,330

1,460 

1,450 

3,120 

2,700 

1,810

Dec.

1,480 

1,360 

1,340 

1,920 

1,560

1,370 

1,190 

1,120 

1,020 

952

90S 

875 

853 

930 

1,020

1,160 

963 

875 

820 

800

770 

730 

684 

' 648 

630

639 

684 

613 

604 

570 

554

Jan.

562 

537 

505 

481 

489

505 

473 

465 

450 

450

465 

458 

450 

442 

405

405 

405 

398 

412 

412

398 

383 

420 

570 

718

2,270 

1,490 

1,300 

1,110 

1,090 

1,010

Feb.

952 

1,020 

1,250 

1,280 

1,290

1,330 

1,420 

1,560 

1,570 

1,550

1,910 

6,930 

5,080 

3,690 

2,940

2,540 

2,160 

1,900 

1,690 

1,540

1,460 

1,360 

1,260 

1,220 

1,210

1,180 

1,160 

1,090

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

mber...................................

mber......................... ...........

lendar year 1946 

ary

uary

1.. .....................................

ember. .................................

ter year 1946-47 ......................

Mar.

1,070 

1,460 

2,020 

1,880 

1.60O

1,460 

1,370 

1,300 

2,110 

6,580

4,800 

3,610 

2,940 

2,770 

2,890

2,980 

3,080 

3,340 

3,440 

3,190

2,870 

2,870 

3,080 

2,480 

2,260

2,070 

2,020 

1,950 

2,240 

3,100 

3,150

Apr.

2 

2 

2 

2 

2

1 

1 

1 

1 

1

1 

1 

2 

3 

3

3 

3 

2 

2 

2

2 

2

1 

1 

1

1 

1 

2 

2 

2

Seoondfoot-daye

7,124 

33,250 

29,642

644,196

19,928 

53,542 

81,980 

70,260 

47,287 

27,044 

9,117 

5,334 

3,996

388,504

,770 

,600 

,420 

,200 

,110

,990 

,920 

,920 

,940 

,880

,920 

,990 

,400 

,060 

,570

,780 

,570 

,920 

,640 

,600

,280 

,040 

,920 

,900 

,870

,900 

,950 

,020 

,070

,110

Hay

2,340 

3,150 

3,080 

2,680 

2,380

2,300 

2,160 

2,060 

1,750 

1,530

1,390 

1,360 

1,370 

1,300 

1,270

1,290 

1,290 

1,230 

1,250 

1,340

1,260 

1,170 

1,060 

1,030 

962

938 

950 

914 

824 

802 

857

Maximum

672 

4,910 

1,920

8,810

2,270 

6,930 

6,580 

3,780 

3,150 

1,830 

506 

249 

157

6,930

June

1,340 

1,470 

1,130 

974 

1,160

1,340 

1,390 

1,790 

1,830 

1,260

1,020 

890 

824 

770 

730

813 

1,090 

846 

750 

670

623 

559 

532 

523 

506

489 

465 

441 

417 

402

Minimum

163 

188 

554

160

383 

952 

1,070 

1,870 

802 

402 

205 

136 

121

121

July

380 

373 

359 

344 

344

337 

331 

318 

298 

291

291 

285 

285 

272 

266

261 

249 

243 

232 

226

220 

215 

215 

210 

205

261 

388 

506 

366 

285 

261

Aug.

249 

237 

226 

215 

210

200 

195 

190 

185 

185

180 

175 

170 

166 

161

157 

157 

153 

148 

144

144 

144 

144 

144 

140

140

136 

136 

153 

180 

170

Mean

230 

1,108 

956

1,765

643 

1,912 

2,645 

2,342 

1,525 

901 

294 

172 

133

1,064

Sept.

157 

148 

144 

140 

136

131 

157 

157 

153 

148

140 

136 

131 

124 

121

121 

121 

124 

136 

136

131 

127 

124 

124 

121

121 

124 

121 

121 

121

Runoff in 

acre- feet

14,130 

65,950 

58,790

1,278,000

39,530 

106,200 

162,600 

139,400 

93,790 

53,640 

18,080 

10,580 

7,930

770,800

Peak discharge.- Nov. 19 (3:30 a.m.) 8,120 sec. -ft. j Nov. 22 (12 p.m.) 6,620 sec. -ft. j Feb. 12
KLAMATH RIVER BASIN 435

Trinity River at Lewiston, Calif.

Location.- Water-stage recorder, lat. 40°42', long. 122°48', in NE& sec. 19, T. 33 N., 

K. 8 W. , at highway bridge at Lewiston, 6.8 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 1947.

Average discharge.- 36 years, 1,529 second-feet.

Extremes . - Maximum discharge during year, 8,390 second-feet Nov. 22 (gage height, 12.35 

Feet) ; minimum, 85 second- feet (regulated) Aug. 26.

1911-47: Maximum discharge, 40,300 second-feet Feb. 28, 1940 (gage height, 20.8 

feet), from rating curve extended above 13,000 second-feet; minimum, 23 second-feet 

July 30, 1924.

Remarks.- Records excellent except those for Nov. 3-22, which are good. 

above station for irrigation, power, and placer mining.

Diversions

Rating tables, water year 1946-47 (gage height, In feet, and discharge. In second-feet) 

(Backwater corrections applied Hov. 2-18, Sept. 2-30)

Oct. 1 to Hov. 22 Nov. 23 to Sept. 30

4.3 123 6.5 546 4.5 102 5.5 314 7.2 900 9.5 

4.7 178 7.0 700 4.6 133 5.8 400 7.8 1,180 10.0 

5.1 244 8.0 1,180 4.9 176 6.2 527 8.4 1,640 11.0 

5.5 320 9.0 1,830 5.2 238 6.6 665 9.0 2,300 11.6 

6.0 427 9.5 2,230

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.

133 

144 

162 

168 

165

161 

158 

154 

149 

148

151 

148 

145 

143 

144

144 

149 

154 

159 

162

196 

285 

356 

266 

232

215 

204 

197 

194 

192 

194

Hov.

196 

194 

189 

188 

184

183 

183 

180 

178 

178

178 

176 

178 

178 

178

176 

183 

471 

2,010 

908

564 

2,200 

4,680 

1,650 

1,100

920 

800 

884 

1,000 

872

Dec.

780 

744 

816 

1,220 

1,180

1,310 

1,130 

1,000 

896 

808

768 

756 

728 

716 

704

704 

665 

626 

606 

612

606 

584 

564 

547 

553

623 

634 

598 

584 

544 

508

Jan.

521 

485 

441 

434 

441

447 

431 

422 

412 

406

409 

406 

400 

394 

356

350 

364 

356 

362 

356

353 

348 

348 

362 

382

596 

570 

550 

508 

524 

489

Feb.

463 

469 

489 

508 

524

564 

616 

686 

788 

1,140

1,500 

6,670 

4,450 

2,740 

2,090

2,170 

1,870 

1,660 

1,490 

1,370

1,290 

1,220 

1,160 

1,160 

1,200

1,220 

1,200 

1,140

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Maro 

Apri 

 ay.

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1946 ......................

ary

uarv S?7: .::::::::::::::::::::::::::::::::: i............. .........................

ember. .................................

ter year 1946-47 ......................

Peak discharge.- 1

(6:30 a.m.) 3,740 se

ov. 22 (11:30 p.m.) 8,39 

c.-ft.} Mar. 29 (12 p.m.

Mar.

1,120 

1,510 

2,300 

2,180 

1,790

1,550 

1,410 

1,330 

1,520 

3,380

2,770 

2,180 

1,940 

2,010 

2,290

2,510 

2,780 

3,090 

3,280 

3,120

2,820 

2,600 

2,560 

2,110 

1,860

1,730 

1,740 

1,880 

3,900 

4,640 

3,740

Apr.

3,120 

2,830 

2,630 

2,310 

2,130

1,970 

1,840 

1,750 

1,660 

1,580

1,650 

1,710 

1,980 

2,650 

3,490

3,960 

3,940 

3,190 

2,900 

3,010

2,570 

2,250 

2,110 

2,120 

2,130

2,210 

2,300 

2,420 

2,400 

2,500

Secondf cot-days

5,572 

21,159 

23,114

605,666

13,223 

41,847 

73,640 

73,310 

55,994 

42,739 

9,935 

4,984 

3,693

369,210

0 sec.-ft.j 

5,410 sec

May

2,840 

 3,770 

3,680 

3,230 

2,820

2,610 

2,530 

2,650 

2,240 

1,840

1,640 

1,590 

1,530 

1,510 

1,490

1,500 

1,510 

1,440 

1,440 

1,490

1,440 

1,340 

1,220 

1,180 

1,120

1,060 

1,140 

1,080 

976 

968 

1,120

Maximum

356 

4,680 

1,310

7,950

596 

6,670 

4,640 

3,960 

3,770 

4,300 

517 

240 

164

6,670

June

2,310 

2,430 

1,540 

1,300 

1,680

1,820 

3,120 

4,300 

2,960 

2,150

1,740 

1,500 

1,350 

1,220 

1,140

1,120 

1,230 

1,060 

980 

904

a860 

796 

756 

728 

700

668

640 

609 

581 

547

Minimum

133

176 

506

12S

346 

46! 

1.12C 

1.58C 

96E 

547 

199 

12E 

107

107

July

517 

485 

457 

441 

416

403 

394 

376 

362 

. 345

336 

536 

SZ5 

311 

293

272 

262 

252 

236 

229

215 

209 

207 

205 

201

199 

245 

463 

382 

296 

267

3,010 

3,820 

5,600 

6,820

Aug.

240 

213 

215 

203 

197

189 

184 

173 

166 

164

161 

156 

153 

148 

143

139 

137 

132 

125 

132

137 

149 

149 

149 

140

. 132 

129 

133 

145 

169 

184

Mean

> 180 

705 

746

1 1,659

427 

1,495 

2,375 

2,444 

1,806 

1,425 

320 

161 

123

1,012

Feb. 12 (1 p.m.) 7,590 sec. -ft.] 

.-ft.] June 1 (10 p.m.) 3,96o sec.

Sept.

164 

141 

138 

135 

131

125 

125 

127 

132 

132

127 

125 

120 

119 

117

115 

115 

114 

120 

127

126 

122 

120 

116 

114

112 

110 

111 

108 

107

Runoff in 

acre-feet

11,050 

41,970 

45,850

1,201,000

26,230 

83,000 

146,100 

145,400 

111,100 

84,770 

19,710 

9,890 

7,320

732.400

Mar. 10

-ft.j

June 8 (1 a.m.) 5,430 sec.-ft.

a No gage-height record; discharge computed on basis of records for station near Douglas City.
436 KLAMATH RIVER BASIN

Trinity River near Douglas City, Calif.

Location - Water-stage recorder, lat. 40°40', long. 132°59', in Sw£ sec. 34, T. 33 N., 

HTTTTW., 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 Reclamation).

Drainage area.- 1,017 square miles.

Records available.- April 1944 to September 1947.

Extremes-- Maximum discharge during year, 10,300 second-feet Feb. 12 (gage height, 13.27 

reec j; minimum, 93 second-feet (regulated) Sept. 6.

1944-47: Maximum discharge, 24,900 second-feet Dec. 29, 1945 (gage height, 21.93 

feet), from rating curve extended above 9,100 second-feet by logarithmic plotting: 

minimum, that of Sept. 6, 1947.

Remarks.- Records good. Diversions above station for irrigation, power, and placer mining.

Rating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

0.8 

.9 

1.0 

1.2 

1.4 

1.7

116

132

150

194

238

312

2.0 

2.5 

3.0

394

560

744

940

1,170

1,730

6.0

7.0

8.0

10.0

12.0

14.0

2,460 

3,310 

4.23O 

6,250 

8,600 

11,300

Discharge, in second-feet, water year October 1946 tc September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

20

21

22

23

24

25

26

W

28

29

30

31

Oct.

159

172

190

201

203

198

194

192

187

176

183

183

181

179

179

181

185

190

194

201

214

289

432

351

291

264

248

238

236

234

234

NOV.

236

.234

231

229

227

225

225

223

220

218

218

220

220

220

220

220

225

346

2,140

1,220

733

1,300

6,230

2,070

1,270

984

844

832

1,060

916

-

Dec.

80S

755

867

1,490

1,360

1,560

1,340

1,160

980

876

820

797

778

752

744

733

710

664

632

632

628

610

592

574

567

607

643

628

603

589

535

Jan.

531

531

497

493

490

490

493

480

448

439

436

436

432

429

410

376

388

388

388

391

385

379

379

379

397

515

664

600

571

556

556

Feb.

517

517

531

567

578

600

639

702

782

1,190

1,670

8,870

6,460

3,620

2,640

2,600

2,320

2,020

1,800

1,620

1,500

1,380

1,300

1,280

1,300

1,320

1,320

1,260

_

_

-

Mcnth

December. ...................................

Calendar year 1946 ......................

March. .....................................

April ................................

May

July... ....................................

September ..................................

Water year 1946-47 ......................

Mar.

1,220

1,690

3,080

2,980

1,980

1,950

1,720

1,600

1,970

4,650

3,740

2,860

2,450

2,410

2,630

2,830

3,050

3,380

3,560

3,460

3,110

2,830

2,820

2,400

2,090

1,930

1,890

1,990

3,700

5,540

4,310

Apr.

3,590

3,230

3,050

2,680

2,470

2,280

2,130

2,020

1,920

1,790

1,840

1,890

2,110

2,730

3,580

4,180

4,380

3,520

3,120

3,250

2,810

2,480

2,290

2,270

2,280

2,350

2,440

2,570

2,560

2,650

-

£££.

25,031

686,517

50,903

85,820

80,440

45,224

4,090

410,928

May

2,840

3,790

3,970

3,480

3,000

2,780

2,690

2,770

2,480

2,010

1,740'

1,650

1,600

1,580

1,560

1,560

1,560

1,490

1,470

1,530

1,500

1,410

1,250

1,200

1,140

1,080

1,120

1,190

1,000

964

1,030

Maximum

6,230

1,560

9,440

664

8,870

4,360

3,970

5,080

274

192

8,870

June

1,S80

3,070

1,750

1,410

1,560

1,980

2,610

5,080

3,450

.2,480

1,970

1,650

1,470

1,320

1,210

1,150

1,300

1,130

1,010

920

840

786

752

717

695

664

632

607

582

549

Minimum

15£

21£

53E

15C

376 51'

1,22C

1.79C

964

54£

223

13E

12]

12]

July

517

490

461

445

426

410

404

391

382

370

354

348

343

335

322

312

299

286

276

264

252

240

231

229

225

223

234

367

426

346

299

Aue.

274

252

238

234

223

216

209

203

192

190

190

185

183

179

172

165

161

157

148

141

141

146

163

159

159

150

143

139

148

170

187

Mean

218

792

807

1,881

463

1,818

2,768

2,681

1,885

1,507

339

181

136

1,126

Sept.

192

172

159

154

146

134

137

148

143

145

139

132

130

129

126

122

121

122

126

132

137

136

134

130

127

124

124

124

124

121

Runoff in 

acre- feet

13,410

47,120

49,650

1,362,000

28,460'

aoi.ooo

170,200

'159,600

115,900

 89,700

' 20,840

11,140

8,110

815,100

Peak discharge.- Nov. 23 (3 a.m.) 9,720 sec.-ft.; Feb. 12 (4 p.m.) 10,300 sec, 

(10 a.m.) 5,276 sec.-ft.; Mar. 30 (4:30 a.m.) 6,220 sec.-ft.

-ft.; Mar. 10
KLAMATH RIVER BASIN 437

Trinity River near Hoopa, Calif.

Location.- Water-stage recorder, lat. 41°02 I , long. 123°39', in Sfi£ sec. 31, T. 8 N., R. 

5 E., on Hoopa Indian Reservation, 0.5 mile downstream from Campbell Creek and 2 miles 

southeast of Hoo'pa. Altitude of gage, about 315 feet (from river-profile map).

Drainage area.- 2,840 square miles.

Kecprds available.- October 1931 to September 1947. October 1911 to January 1914 and 

November 1916 to August 1918 at site at Hoopa, 2 miles downstream.

Average discharge.- 18 years (1911-13, 1931-47), 5,222 second-feet.

Extremes.- Maximum discharge during year, 34,000 second-feet Feb. 12 (gage height, 16.70 

reet); minimum, 290 second-feet Sept. 30 (gage height, 2.80 feet).

1911-14, 1916-18, 1931-47: 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 

fair. Small diversions above station for mining and irrigation.

Rating tables, water year 1946-47 (gage height, in feet, &nd discharge, 

in second-feet)

Oct. 1 to Nov. 23 Nov. 24 to Sept. 30

3.0 330 5.0 1,260 7.5 4,040 2.8 290 4.7 1,010 9 

3.2 388 5.5 1,630 8.0 4,950 3.0 340 5.3 1,400 11 

3.6 530 6.0 C,080 9.0 7,050 3.2 39O 6.0 2,000 13 

4.0 700 6.5 2,610 10.0 9,500 3.5 480 6.6 2,620 15 

4.5 955 7.0 3,250 11.5 13,800 3.8 585 7.4 3,740 

4.2 750 8.0 4,800

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.

355 

361 

407 

444 

447

447 

440 

430 

430 

423

417 

401 

401 

394 

388

388 

407 

430 

440 

454

542 

820 

1,090 

1,000 

850

718 

642 

598 

578 

578 

590

Nov.

598 

590 

57S 

570 

558

550 

546 

542 

538 

534

530 

526 

530 

530 

530

550 

600 

2,500 

6.0OO 

5,320

2,800 

3,120 

13,800 

7,580 

4,370

3,470 

2,940 

3,260 

4,000 

3,320

Dec.

2,740 

2,470 

2,380 

6,220 

5,620

5,000 

4,700 

4,500 

4,100 

3,500

3,000 

2,700 

2,600 

2,500 

2,400

2,400 

2,300 

2,200 

2,000 

1,900

1,800 

1,750 

1,700 

1,600 

1,500

1,500 

1,600 

1,500 

1,400 

1,380 

1,370

Jan.*

1,360 

1,350 

1,320 

1,300 

1,280

1,260 

1,230 

1,200 

1,190 

1,160

1,150 

1,170 

1,180 

1,120 

1,100

1,050 

1,000 

1,020 

1,040 

1,050

1,060 

1,030 

1,050 

1,120 

1,250

2,860 

2,900 

2,780 

2,460 

2,540 

2,510

Feb.

2,290 

2,310 

2,790 

3,160 

3,300

3,400 

3,620 

3,960 

4,060 

4,310

5,140 

26,700 

22,300 

12,900 

9,380

7,920 

7,050 

6,170 

5,440 

4,920

4,470 

4,150 

3,870 

3,650 

3,530

3,440 

3,400 

3,260

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

ffa

ber. ...................................

mber... ................................

lendar year 1946 

ary

1.. ...................................

ember. .................................

ter year 1946-47 ......................

Peak discharge.- N

(3 p.m.) 24,000 sec. 

Note.- No gage-hei

corded range

Mar.

3,190 

4,640 

10,900 

11,800 

9,420

7.S20 

6,780 

6,170 

6,900 

19,700

18,200 

13,300 

10,700 

9,680 

9,500

9,380 

9,080 

9,100 

8,950 

8,620

7,900 

7,380 

7,520 6,850- 

6,040

5,510 

5,220 

5,160 

5,840 

11,200 

12,300

Apr.

10 

9 

8 

7 

7

7 

6 

6 

6 

6

5 

5 

5 

6 

7

7 

7 

7 

6

6

6 

5 

5 

4 

4

4 

4 

4 

4

4

Secondfoot-days

16,310 

71,880 

82,330

1,775,804

45,090 

170,890 

274,760 

192,280 

108,260 

82,750 

24,070 

13,232 

10,131

1,091,983

,100 

,000 

,620 

,900 

,420

,050 

,620 

,380 

,400 

,060

,840 

,820 

,930 

,380 

,250

,850 

,950 

,320 

,450

,240

,020 

,400 

,000 

,720 

,700

,640 

,680 

,780 

,880 

,880

May

4,960 

5,750 

6,470 

5,970 

5,360

4,940 

4,720 

4,600 

4,600 

4,000

3,540 

3,280 

3,190 

3,090 

3,020

2,980 

3,020 

2,950 

2,870 

2,900

2,930 

2,820 

2,610 

2,410 

2,320

2,220 

2,180 

2,320 

2,210 

2,000 

2,030

Maximum

1,090 

13,800 

6,220

34,400

2,900 

26,700 

19,700 

10,100 

6,470 

6,790 

1,130 

661 

414

26,700

June

2,500 

4,620 

. 3,770 

2,870 

2,680

3,540 

3,800 

6,790 

6,470 

4,800

3,820 

3,260 

2,840 

2,610 

2,400

2,300 

2,530 

2,500 

2,190 

1,980

1,800 

1,6SO 

1,560 

1,500 

1,450

1,410 

1,360 

1,300 

1,250 

1,190

Minimum

35E 

526 

1.37C

352

l.OOC 

2.29C 

3,19C 

4.64C 

2.00C 

1.19C 

52S 

34C 

292

292

July

1,130 

1,080 

1,040 

999 

972

938 

916 

900 

878 

835

815 

805 

7-86 

759 

736

710 

685 

657 

625 

605

589 

568 

550 

540 

529

557 

609 

714 

955 

856 

732

.0 7,000 

.0 12,300 

.0 18,600 

.1 26,800

Aug.

661 

617 

582 

546 

529

512 

490 

471 

462 

453

447 

435 

420 

411 

405

390 

380 

372 

365 

355

342 

340 

348 

358 

360

358 

352 

342 

355 

375 

399

Mean

526 

2,396 

2,656

4,865

1,455 

6,103 

8,863 

6,409 

3,492 

2,758 

776 

427 

338

2,992

ov. 23 (1 p.m.) 17,700 sec. -ft.; Feb. 12 (12 m.) 34,000 sec. -ft.; Mar 

-ft.; Mar. 30 (12 p.m.) 13,300 sec. -ft. 

zht record Nov. 16-19, Dec. 6 to Jan. 8; discharge computed on basis

Sept.

414 

414 

399 

382 

370

360 

358 

360 

365 

365

362 

358 

345 

338 

322

312 

305 

300 

310 

315

320 

322 

320 

315 

308

305 

302 

298 

295 

292

Runoff in 

acre-feet

32,350 

142,600 

163,300

3,522,000

89,430 

339,000 

545,000 

381,400 

214,700 

164,100 

47,740 

26,250 

20,090

2,166,000

. 10 

of reIn stage and records for Salmon River at Somestiar.

854211 O- 49 - 29
438 SMITH RIVER BASIN

Smith River near Crescent City, Calif.

Location.- Water-stage recorder, lat. 41°47', long. 124°04', in SW-J- sec. 10, T. 16 N., R. 

i E.,"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 1947.

Average discharge.- -15 years (1931-37, 1938-47), 3,318 second-feet.

Extremes.- Maximum discharge during year, 50,000 second-feet Nov. 18 (gage height, 24.00 

reet), from rating curve extended above 24,000 second-feet by logarithmic plotting of 

station and cableway ratings; minimum, 195 second-feet Oct. 14-16 (gage height, 3.41 

feet).

1931-47: 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 except those for period of no gage-height record, which are 

good7 No storage or diversion.

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.

226

238

382

339

248

231

224

224

220

213

206

202

197

195

197

195

258.

345

289

688

1,050

3,700

1,650

920

654

529

455

415

386

411

444

Nov.

491

525

480

431

402

382

367

348

333

322

316

308

305

297

294

292

406

18,500

16,200

6,360

5,440

21,800

20,800

9,620

9,480

17,100

14,400

12,200

8,240

5,830

-

Dec.

4,610

4,100

3,940

5,560

4,720

4,660

4,440

6,780

5,970

4,590

3,800

3,490

3,570

5,770

7,350

7,170

5,010

3,940

3,300

2,890

2,580

2,330

2,120

1,960

1,830

1,800

1,850

1,660

1,680

1,540

1,470

Jan.

1,460

1,380

1,300

1,260

1,210

1,190

1,150

1,100

1,060

1,060

1,090

1,210

1,250

1,190

1,120

1,090

1,090

1,100

1,180

1,420

1,520

1,480

2,020

5,090

5,930

14,900

7,660

6,780

5,660

7,680

6,990

Feb.

5,840

9,550

10,500

7,480

6,070

5,240

4,790

4,460

4,060

3,820

4,730

14,300

9,390

6,520

5,210

4,520

3,880

3,430

3,050

2,780

2,540

2,360

2,190

2,070

1,950

1,850

1,770

1,660

_

_

-

Month

October ....................................

November . ..................................

December. ............................... .

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July... ....................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

1,660

5,940

9,780

6,070

4,540

3,740

3,370

3,290

11,500

31,000

16,900

9,710

7,140

5,810

4,980

4,410

3,940

3,610

3,280

2,940

2,680

2,720

3,100

2,920

2,630

2,430

2,240

2, -130

2,410

10,300

14,000

Apr.

7,860

6,860

6,640

5,670

6,050

5,870

4,920

4,740

6,150

5,590

4,710

4,160

3,920

3,680

3,370

3,020

2,820

2,640

2,380

2,210

2,050

1,930

1,810

1,700

1,610

1,530

1,460

1,440

1,450

1,380

-

Secondfoot-day s

15,931

172,269

116,480

1,157,171

89 , 620

136,010

191,170

109 f 620

25, 872

54,313

37,741

22 157

ll',387

982,570

May

1,290

1,250

1,210

1,150

1,110

1,070

1,040

1,030

1,010

960

920

900

870

855

820

798

780

757

739

717

686

a660

a630

a600

a590

a570

a560

a570

a560

a560

a600

Maximum

3,700

21,800

7,350

23,700

14,900

14,300

31,000

7 1 860

1 290

6 , 800

7, 760

1,510

562

31,000

June

a900

1,050

1,170

945

2,490

3,080

2,350

6,110

6,800

4,380

3,020

2,330

1,940

1,660

1,430

1,460

1,490

1,270

1,150

1,060

990

940

900

850

802

775

802

762

717

690

-

Minimum

195

292

1,470

191

1,060

1,660

1,660

1,380

560 

690

406

466

310

195

July

662

646

634

618

602

591

576

557

545

538

526

523

516

498

494

484

474

470

450

441

428

428

422

412

406

2,070

7,760

7,240

3,540

2,340

1,850

Aug.

1,510

1,330

1,250

1,100

1,020

935

880

835

810

773

739

703

679

652

633

610

588

577

555

544

532

525

525

511

494

480

469

466

476

490

466

Mean

514

5 742

3^757

3,170

2

4J858

6,167

3,654

835

1,810

1,217

715

380

2,692

Sept.

445

433

433

423

411

408

562

522

442

426

404

392

376

367

558

352

349

352

349

346

335

329

327

324

324

327

324

321

316

310

-

Runoff in 

acre- feet

31,600

341,700

231,000

* *

177,800

269 , 800

379,200

217,400

51,320

107,700

74,860

43,950

22,590

1,949,000

Peak discharge.- Nov. 18 (9:30 p.m.) 50,000 sec.-ft.; Nov. 22 (9 p.m.) 42,700 sec.-ft.; Mar. 9 

I2~p7m. J 4T,500~seo.-ft. 

a Ho gage-height record; discharge computed on basis of records for Salmon and Trinity Rivers.
MISCELLANEOUS DISCHARGE MEASUREMENTS 439

Measurements of stream flow in the Pacific slope basins in California made at points 

other than gaging stations are given in the following table:

Miscellaneous discharge measurements In the Pacific slope basins In California during 

water year October 1946 to September 1947

STREAMS SOUTH OP SAN FRANCISCO BAY 

Tla Juana River at Boundary.at San Ysldro, Calif.

Date

Apr. 1 

11 

24

Discharge 

(sec. -ft.)

4.4

4.1 

4.8

Date

May 1

IS 

28

Discharge 

(sec. -ft.)

5.3 

4.6 

4.9

Date

July 3 

Aug. 1 

Sept. 4

Discharge 

(sec. -ft.)

4.1 

2.8 

3.1

Date

Discharge 

(sec. -ft.)

Boulder Creek at Cuyamaca Dam, near Julian Calif.

Apr. 23 27 II Apr. 23 27 || Apr. 23 50 ||

San Dlegulto conduit at Hodges Dam, Calif.

Dec. 18

23

Feb. 11

Mar. 5

8.1

6.9

15

14

Mar. 12

- 19

26

Apr. 4

9.4

19

12

10

Apr. 15

May 12

June 5

July 1

20

19

19

21

July 31

Sept. 2

20

19

San Dlegulto conduit at Station 202, Calif.

Mar. 12, 8.3 second-feet; Apr. 4, 1O second-feet

San Dlegulto conduit at Station 234, Calif.

Mar. 12, 7.4 second-feet

San Dlegulto conduit at mouth, Calif.

Mar. 12, 5.8 second-feet

Arroyo Seco at Nigger Canyon, near Temecula, Calif.

Jan. 7

Feb. 18

0.7

1.0

Mar. 18

Apr. 22

0.6

.4

May 20

June 11

0.2

.2

July 16 0

Las Flores Creek 0.9 mile below confluence of Las Pulgas and Piedra de Lombre Creeks,

near Oceanslde, Calif.

July 2 1.4 || July 19 1.2 || Sept. 4 1-2 II

Note.- Measurements furnished by Santa Margarlta Ranch (U. S. Navy) and Pauba Ranch.

San Mateo Creek near San Clemente, Calif.

Nov. 7

19

Dec. 17

0.08

.08

.1

Jan. 16

Feb. 27

Mar. 27

0.1

.1

.1

Apr. 29

June 3

July 2

0.08

.06

t.Ol

July 29

Sept. 4

0.04

.03

t Estimated.

Note.- Measurements furnished by Santa Margarlta Ranch (U. S. Navy) and Pauba Ranch.

San Juan Mutual Water Co.'s diversion, near San Juan Caplstrano, Calif.

Oct. 10

Nov. 7

19

2.0

2.8

4.4

Jan. 16

Feb. 27

Mar. 27

0.3

3.7

2.7

Apr. 29

June 3

July 2

2.9

1.7

2.1

July 29

Sept. 4

0.8

1.3

Santa Ana River at Yorba Bridge, near Yorba, Calif.

Nov. 12

13

14

15

16

19

20

21

24

27

29

Dec. 2

4

6

9

11

13

106

216

482

410

338

42

59

352

462

125

124

104

120

120

111

104

146

Dec. 16

18

20

23

26

27

30

Jan. 3

6

8

10

13

15

17

20

22

24

163

153

150

164

350

568

265

168

213

193

163

197

149

135

153

156

134

Jan. 27

29

31

Feb. 3

5

7

10

14

 17

19

21

24

26

28

Mar. 3

5

7

180

238

182

179

157

146

166

131

138

135

74

79

65

55

74

110

81

Mar. 10

12

14

17

19

21

24

26

28

31

Apr. 2

4

7

9

72

83

33

25

17

47

77

12

16

36

13

17

4.3

0

Note.- Measurements furnished by Orange County Flood Control District.

Santa Ana River at Jefferson Street Bridge, near Atwood, Calif.

Nov. 12

13

14

27

29 .

Dec. 2

4

6

9

11

13

16

18

0

77

299

11

17

15

21

23

29

21

22

42

31

Dec. 20

23

26

27

30

Jan. 3

6

8

10

13

15

17

20

24

47

205

379

153

57

63

72

57

80

74

46

70

Jan . 22

24

27

29

31

Feb. 3

5

7

10

14

17

21

24

53

60

87

133

96

78

68

50

76

53

62

30

34

Feb. 27

28

Mar. 3

5

7

10

12

14

21

24

28

20

14

6.3

31

18

16

17

0

0

2.3

O

Note.- Measurements furnished by Orange County Flood Control District.
440 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in the Pacific slope basins in California during 

water year October 1946 to September 1947 Continued

STREAMS SOUTH OF SAN FRANCISCO BAY--Continued 

Santa Ana River at bridge on Anaheim-Olive road, near Olive, Calif.

Date

Nov. 14

27

29

Dec. 2

4

6

9

11

13

16

18

Discharge 

(sec. -ft.)

165

1.5

7.2

3.4

10

12

6.6

7.1

5.4

15

5.8

Date

Dec. 20

23

26

27

30

Jan. 3

6

8

10

13

15

Discharge 

(sec. -ft.)

8.7

13

122

220

55

14

14

14

9.6

11

17

Date

Jan. 17

20

22

24

27

29

31

Feb. 3

5

7

10

Discharge 

(sec. -ft.)

5.9

9.3

15

4.8

25

43

10

7.7

13

4.1

13

Date

Feb. 14

17

21

24

27

28

Mar. 3

5

7

12

14

Discharge 

(sec. -ft.)

0.9

2.2

.3

3.3

.2

.3

0

t.5

t.2

t.2

0

t Estimated.

Note.- Measurements furnished by Orange County Flood Control District.

Santa Ana River at Chapman Bridge, near Orange, Calif.

Nov. 14 

27 

29 

Dec. 2 

4 

6 

9 

11 

13 

16 

18

104 

t.3 

2.6 

3.7 

2.4 

t.3 

2.0 

5.8 

.7 

2.1 

2.3

Dec. 20 

23 

26 

27 

30 

Jan. 3

8

10 

13 

15

1.9 

3.2 

44 

115 

11 

2.0 

3.3 

5.4 

.1 

5.9 

3.4

Jan. 17 

20 

22 

24 

27 

29 

31 

Feb. 3 

5 

7 

10

t Estimated. 

Note.- Measurements furnished by Orange County Flood Contr

Rising Water about* 500 feet east of Warm Creek at C

Nov. 25 

Dec. 6 

13 

20 

26

1.4 

2.2 

2.0 

2.4 

8.1

Jan. 3 

10 

17 

24

31

3.2 

3.8 

3.8 

2.0 

2.3

Feb. 14 

20 

25 

Mar. 3 

10

to.i

.8 

.3 

1.3 

2.5 

10 

3.5 

4.1 

2.1 

1.3 

2.4

Feb. 14 

17 

19 

21 

24 

Mar. 3 

5 

7

D! District, 

alton Avenue, near Colton,

1.0 

1.2

t.03 

t.l

Mar. 19 

24 

31 

Apr. 9 

15

t Estimated. 

Day Creek diversion near Etiwanda, Calif.

Oct. 22 

Mar. 13 

28 

Apr. 14 

25

0

6.1 

4.3 

4.5

May 16 

29

June 5 

23 

July 14

4.6 

3.8

4.0 

3.8 

2.6

July 28 

Aug . 4 

12 

18 

25

2.5 

1.8 

2.1 

2.2 

2.2

Sept. 8 

16 

23

0 

1.2 

0 

.2 

0 

0 

.1 

0

Calif.

to. 2 

t.2 

t.03 

t.03 

0

2.0 

2.2 

2.6

Tecolate Creek above diversion 4 miles above U. S. Highway 101, near Goleta, Calif.

Apr. 7 1.4 || May 15 0.06 || June 18 0.02 || July 17 Trace

Eagle Canyon Creek above diversion 3.3 miles above U. S. Highway 101, near Goleta, Calif.

Apr. 7 0.01 || May 5 0.01 ||

Dos Pueblos Canyon Creek above diversion 2.7 ra

May 5

June 18

0.5 

.4

0-,t. 9

Nov. 6

0.1 

.2

July 17 

Aug. 7

0.4 

.2

Santa Ynez River

Dec. 12 

Apr. 9

15 

13

ir r

iles above U. S. Highway 101, near Goleta, Calif.

Sept. 10 0.4

at Buellton, Calif.

May 12 

June 9

0.8 

.2

Santa Ynez River near Buellton, Calif. 

(Formerly published as Santa Ynez River at proposed g 

4.0 miles below Buellton, Calif.

Apr. 14 

21

May e 

12 

19

6.4 

3.1 

.9 

.6 

.7 

.7

Sa

May G 

June 9

0.8 

.4

May 26 

June 5 

12 

19 

26 

July 7

Santa Ynez 

it a Ynez Riv

July 16 

Aug. 8

0.9 

.5 

.3 

.2 

.2 

.5

July 16 

22 

28 

Aug. 8 

13 

18

0 . 2 

.05 

.3 

.00 

.04 

0

July 16 0

age site

Sept. 2 

8 

17 

23

30

0.2 

.2 

.2 

.4 

.4

River at Donovan's, near Santa Rosa, Calif. 

Dec. 12, 20 second-feet

er above Salsipuedes Creek, near Lompoc, Calif.

0.2 

.1

Sept. 8 0.08

Santa Ynez River below Salsipuedes Creek, near Lompoc, Calif. 

Apr. 9, 13 second-feet

Santa Ynez River at Rucker's crossing, near Lompoc, Calif.

Apr. 8 |
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In the Pacific slope basins In California during 

water year October 1946 to September 1947 Continued

STREAMS SOUTH OP SAH PRAHCISCO BAY--Continued 

Hot Springs Canyon Creek at mouth, near Santa Barbara, Calif.

Date

Oct. 1

Discharge 

(sec. -ft.)

0.4

Date

Dec. 11

Discharge 

(sec. -ft.)

0.5

Date Discharge 

(sec. -ft.) Date Discharge 

(sec. -ft.)

Santa Cota Creek at mouth, near Santa Ynez, Calif.

Oct. 9 

Hov. 6 

Dec. 11

1.3 

3.8 

4.9

Jan. 13 

Feb. 12 

Mar. 10

4.8 

6.4 

5.4

Apr. 10 

May 8 

June 3

3.5 

.4 

.6

July 7 

Aug. 5 

Sept. 8

0.4 

.4

1.9

Alamo Pintado Creek 1.1 miles above mouth, near Solvang, Calif.

Oct. 9 0.5 II Hov. 6 0.6 || Dec. 11 0.8

Santa Rosa Creek at Santa Ynez River, near Buellton, Calif.

Feb. 12 

Mar. 10

0.3 

.4

Apr. 8 

May 6

0.2 

.3

June 9 

July 16

0.1 

.07

Aug. 8 

Sept. 8

0.3 

.2

Salsipuedes Creek at Santa Ynez River, near Lompoc, Calif.

Apr. 9 0.8 || May 6 0.06 || June 9 0

Cuyama River below Cottonwood Creek, near Cuyama, Calif.

Oct. 3 

Apr. 16

9.0 

8.7

Apr . 24 

June 2

7.1 

4.6

July 23 

29

tO. 05 

2.2

t Estimated. 

Cuyama River below Gypsum Creek, near Cuyama, Calif.

Oct. 3 7.4 Apr. 16 4.0 June 2 0.8 II July 23 0

Santa Maria River at confluence of Cuyama and Sisquoc Rivers, near Santa Maria, Calif.

Dec. 30 19 || Jan. 15 9.8 || Feb. 25 3.1 || Mar. 25 1.4

Arroyo Grande at county park 9 miles above U. S. Highway 101, near Arroyo Grande, Calif. 

Oct. 7, 0.8 second-feet

Arroyo Grande 5 miles above U. S. Highway 101, near Arroyo Grande, Calif. 

Oct. 7, 0.5 second-feet

L~pez Canyon Creek 4.5 miles above mouth, near Arroyo Grande, Calif. 

Oct. 7, 2.0 second-feet

SALINAS RIVER BASIN 

Salinas River 4 miles upstream from Atascadero, Calif.

Oct. 16 

30

7.7 

6.5

July 2 

17

109 

31.2

July 29 0.05 Aug. 15 0

Salinas River at bridge near Atascadero, Calif.

Oct. 16 

30

5.1 

3.8

July 2 

17

1.6 

17.7

July 31 

Aug. 15

3.2 

1.2

Sept. 11 1.6

Salinas River at Templeton, Calif.

Oct. 9 

23

4.6 

3.6

July 2 

14

0 

1.3

July 31 

Aug. 15

0.6

0

Sept. 3 

17

0 

0

 Salinas River at San Miguel, Calif.

Oct. 9 

23 

June 18

0 

0

0

July 3 

16

0 

0

July 30 

Aug. 6

0 

0

Sept. 3 

17

0 

0

Salinas River above Hacimiento River near San Miguel, Calif.

Oct. 9 

23 

June 18

0 

0

0

July 2 

16

0

0

July 30 

Aug. 8

0

0

Sept. 3

17

0 

0

Salinas River at highway bridge at Bradley, Calif.

Oct. 9 

23 

June 18

3.1 

3.9 

3.3

July 3 

16

2.5 

2.3

July 30 

Aug. 6

1.8 

1.4

Sept. 3 

17

1.5 

2.1

Salinas River at highway bridge at San Ardo, Calif.

Oct. 9 

23

0 

0

June 18 

 July 9

0 || July 21 

0 II Aug. 6

0 || Sept. 3 

0 || 17

0 

0

Salinas River at bridge near San Lucas, Calif.

Oct. 9 

June 18

0 f July 9 

0 || Aug. 6

0 || Sept. 3 

0 ||

0 || Sept. 17 0
Miscellaneous discharge measurements In the Pacific slope basins In California during 

water year October 1946 to September 1947 Continued

SALINAS RIVER BASIN--Continued 

Sallnas River at highway bridge at King City, Calif.

Date

Oct. 9 

24

Discharge 

(sec. -ft.)

0 

0

Date

June 19 

July 9

Discharge 

(sec. -ft.)

0 

0

Date

July 21 

Aug. 7

Discharge 

(sec. -ft.)

0 

0

Date

Sept. 3 

17

Discharge 

(sec. -ft.)

0 

0

Sallnas River at highway bridge near Soledad, Calif.

Oct. 9 

24 

June 19

0 

0 

0

Oct. 9 

23 

June 18

0 

0

0

July 9 

21

0 

0

July 23 

Aug. 7

0 

0

Sept. 4 

18

0 

0

Estrella Creek at mouth, near San Mlguel, Calif.

July 3 

16

0 

0

July 30 

Aug. 6

0 

0

Sept. 3 

17

0 

0

Nacimlento River at mouth, near San Mlguel, Calif.

Oct. 9 

23

0 

0

July 3

16

1.3 II July 30 

.7 || Aug. 8

0.5 || Sept. 3 

0 || 17

0.1 

.2

San Antonio River at mouth, near Bradley, Calif.

Oct. 9 

23

0 

0

June 18 

July 16

0 

0

Aug. 6 

Sept . 3

0

0

Sept. 17 0

PIT RIVER BASIN

Nelson Creek near Big Bend, Calif. 

Sept. 26, 13.7 second-feet

Kosk Creek near Big Bend, Calif. 

Sept. 26, 35.7 second-feet

FEATHER RIVER BASIN

Almanor-Butt Creek tunnel at outlet, near Prattvllle, Calif. 

Feb. 22, 13.7 second-feet

Colgate Canal at intake at Colgate diversion dam, Calif. 

Sept. 20, 65 second-feet

AMERICAN RIVER BASIN

Seepage from Silver Lake at former gaging station near Kirkwood, Calif. 

July 9, 12.7 second-feet

El Dorado Canal above Canal No. 5, near Pollock Pines, Calif. 

Sept. 8, 117 second-feet

El Dorado Canal above forebay tunnel, near Polloc:: Pines, Calif. 

Sept. 5, 117 second-feet

COLUSA AND YOLO BASINS 

Knights Landing Ridge Cut at site of former gaging station near Knights Landing, Calif.

Apr. 14 

May 16

1.7 II June 16 

45.3 || July 17

28.8 

64

Aug. 20 65 || Sept. 24 3.9

KLAMATH RIVER BASIN

Bluff Creek half a mile above mouth, in sec. 30, T. 10 N., R. 5 E., Calif. 

Sept. 14, 42.6 second-feet
INDEX

"A" Canal at Klamath Falls, Oreg....... 424

Accuracy of field data and computed re- 

, suits............................ 5

Acre-foot, definition of............... 1

Agencies other than Geological Survey,

records collected by............. 11-13

Alameda Creek near Niles, Calif........ 191

Alamitos Creek near Edenvale, Calif.... 184

Alamo Creek near Santa Maria, Calif.... 160

Alamo Pintado Creek, Calif., discharge

measurements of.................. 441

Alascadero Creek near Goleta, Calif.... 139

Alder Creek near Whitehall, Calif...... 382

Aliso Creek at El Toro, Calif.......... 50

Almanor-Butt Creek tunnel, Calif., discharge measurement of............ 442

Alpine, Calif., Sweetwater River near.. 24 

American River at Fair Oaks, Calif..... 367

at Sacramento, Calif................. 368

Middle Fork, near Auburn, Calif...... 369

North Fork, at North Fork Dam, Calif. . 365 

at Rattlesnake Bridge, Calif....... 366

South Fork, near Camino, Calif....... 376

near Kyburz, Calif................. 375

American River Basin, Calif., discharge

measurements in.................. 442

gaging-station records in...........365-387

American River f-lume near Camino, Calif. 386 

Antelope Creek near Red Bluff, Calif... 322 

Arlington, Calif., Santa Ana River near 54 

Arrowhead Springs, Calif., Strawberry

Creek near....................... 69

Waterman Canyon Creek near........... 70

Arroyo Grande at Ar'royo Grande, Calif.. 165 

discharge measurements of............. 441

Arroyo Seco (Los Angeles River Basin)

near Pasadena, Calif............. 117

Arroyo Seco (Salinas River Basin) near

Soledad, Calif................... 176

Arroyo Seco (Santa Margarita River

Basin), Calif., discharge measure- * 

ments of......................... 439

Artesia, Calif., Coyote Creek near..... 102

Ashland, Oreg., Keene Creek Canal near. 431 

Auberry, Calif., Big Sandy Creek near.. 235 

Auburn, Calif., Bear River near........ 362

Middle Fork American River near...... 369

Avery, Calif., Middle Fork Stanislaus

River near....................... 267

North Fork Stanislaus River near..... 271

Azusa, Calif., Rogers Creek near....... 96

San Gabriel River near................ 91

Bakersfield, Calif., Kern River near... 196 

Baldwin Park, Calif., San Gabriel River

near............................. 92

Ballona Creek near Culver City, Calif.. 125 

Battle Creek near Cottonwood, Calif.... 321

Bear Creek (tributary to San Joaquin

River) near Lockeford, Calif..... 281 

Bear Creek (tributary to South Pork San

Joaquin River) near Vermilion

Valley, Calif.................... 226

Bear River (Feather River Basin) near

Auburn, Calif.................... 362

near Wheatland, Calif................ 363

Bear River (Mokelumne River Basin) at

Pardoe Camp, Calif............... 290

Bear River Canal near Colfax, Calif.... 364

Bidwell Bar, Calif., Middle Fork

Feather River at................. 344

Big Bar, Calif., North Pork Feather

River at......................... 331

Big Bend, Calif., Pit River at......... 311

Big Creek, Calif., Florence Lake near.. 222 

Huntington Lake near................. 228

San Joaquin River above.............. 212

Shaver Lake near..................... 231

Big Creek below Huntington Lake, Calif. 229 

Big Sandy Creek near Auberry, Calif.... 235

Big Trees, Calif., San Lorenzo River at. 182

Bluff Creek, Calif., discharge

measurement of................... 442

Bonsall, Calif., San Luis Key River

near............................. 41

Borel Canal at Tilley Creek, Calif..... 198 

Boulder Creek at Cuyamaca Reservoir,

near Julian, Calif............... 28

discharge measurements of............ 439

Bowman Lake, Calif., Canyon Creek below 359 

Bowman Lake near Graniteville, Calif... 358 

Bowman-Spaulding Canal at intake, Calif. 360 

Branscomb, Calif., South Pork Eel River

near.......................'...... 412

rea, Calif., Fullerton Creek near..... 105

Brea Creek at Fullerton, Calif......... 104

below Brea Dam, near Fullerton, Calif. 103 

Bridgeville, Calif., Van Duzen River at 414 

Buchanan dam site, Calif., Chowohilla

River at. ........................ 241

Busks Creek Reservoir near Bucks Ranch,

Calif............................ 338

Buellton, Calif., La Zaca Creek at..... 154

Butt Creek above Almanor-Butt Creek

tunnel, near Prattville, Calif... 334 

below Almanor-Butt Creek tunnell,

near Prattville, Calif........... 335

Butte City, Calif., Sacramento River at 303 

Butte Creek near Chico, Calif.......... 328

Cache Creek at Yolo, Calif............. 392

390

394

78

127

278

400

386

376

90

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..............278-280

Calpella, Calif., East Fork Russian

River near......................

Camino, Calif., American River flume

near............................

South Fork American River near......

Camp Bonita, Calif., East Fork San

Gabriel River near..............

Camp Rincon, Calif., West Fork San

Gabriel River at................. 95

Campbell Cr'eek at Saratoga, Calif...... 188

Campo Creek near Campo, Calif.......... 21

Canby, Calif., Pit River near.......... 308

Canyon Creek below Bowman Lake, Calif.. 359 

Capay, Calif., Cache Creek near........ 391

Carpinteria Creek near Carpinteria,

Calif............................ 138

Cascade Canal near Fish Lake, Oreg..... 423

Chamberlain Slough near El Nido, Calif. 242 

Cherry Creek near Hetch Hetchy, Calif.. 258 

Chico, Calif., Butte Creek near........ 328

Chico Creek near..................... 326

Chico Creek near Chico, Calif.......... 326

Chiloquin, Oreg., Sprague River near... 422 

Williamson River near................ 415

hittenden, Calif., Pajaro River near.. 177 

Chowchilla River at Buchanan dam site,

Calif............................ 241

Cisco, Calif., South Fork Yuba River

near............................. 355

City Creek near Highland, Calif........ 71-72

City Creek Water Co.'s canal near Highland, Calif...................... 73

Claremont, Calif., San Antonio Creek

near............................. 85-86

Southern California Edison Co.'s

conduit near..................... 87

Clear Creek near Igo, Calif............ 319

Clear Lake at Lakeport, Calif.......... 389

Clemsnts, Calif., Mokelumne River near. 286 

Cliff Camp, Calif., North Pork Kings

River near....................... 210

Clio, Calif., Middle Fork Feather River

near............................. 342

443
INDEX

Cloverdale, Calif., Dry Creek near....404-405

Colby Ranch, Calif., Tujunga Creek near 112 

Cold Creek near Molcelumne Peak, Calif.. 289 

Colfax, Calif., Bear River Canal near.. 364 

Colgate Canal, Calif., discharge

measurement of................... 442

Colgate diversion dam, Calif., North

Fork Yuba River at............... 354

Colton, Calif., Meeks & Daley Canal

near............................. 79

Warm Creek near...................... 67-68

Colusa, Calif., Sacramento River at.... 304

Colusa and Yolo Basins, Calif., discharge measurements in........... 442

gaging-station records in...........388-396

Computations, accuracy of results of... 5 

Concow Creek near Yankee Hill, Calif... 340 

Conn Creek near St. Helena, Calif...... 398

Contents, definition of................ 2

Control, definition of................. 1

Cooperation, record of................. 13-14

Copco, Calif., Fall Creek at........... 428

Klamath River near................... 419

Corona, Calif., Santa Ana River near... 55,56 

Temsscal Creek near.................. 84

Cosgrove Creek near Valley Springs,

Calif............................ 279

Cosumnes River at McConnell, Calif..... 296

at Michigan Bar, Calif............... 895

Cottonwood, Calif., Battle Creek near.. 321 

Cottonwood Creek near................ 320

Cottonwood Creek (Goose Lake Basin)

near Lakeview, Oreg.............. 298

Cottonwood Creek (Sacramento River

Basin) near Cottonwood, Calif,... 320 

Cottonwood Creek (San Joaquin River

Basin) near Friant, Calif........ 237

Cottonwood Creek (Tia Juana River

Basin) above Tecate Creek, near 

Dulzura, Calif................... 17

at Barrett Dam, near Dulzura, Calif.. 16 

at Morena Dam, Calif................. 15

Coyote Creek (tributary to San Francisco Bay) near Edenvale, Calif..... 190

near Madrone, Calif. .................. 189

Coyote Creek Basin, Calif., gagingstation records in..............189-190

Coyote Creek (tributary to San Gabriel

River) near Artesia, Calif....... 102

Coyote Creek (tributary to Ventura

River) near Ventura, Calif....... 137

Craftonville, Calif., Mill Creek power

canal 1 near..................... 64

Mill Creek power canals 2 and 3 near 63 

Crane Valley Reservoir, Calif., Pacific 

Gas & Electric Co. conduit No. 3 

near............................. 234

North Fork Willow Creek below........ 233

Crescent City, Calif., Smith River near 438 

Crescent Mills, Calif., Indian Creek

near............................. 336

CucaTionga Creek near Upland, Calif..... 81

Culver City, Calif., Ballona Creek near 125 

Cupertino, Calif., Stevens Creek near.. 183 

Cuyama River, Calif., discharge measurements of......................... 441

near Santa Maria, Calif.............. 158

near Ventucopa, Calif................ 157

Dalton Creek near Glendora, Calif...... 99

Data, accuracy of...................... 5

explanation of....................... 2-4

Daulton, Calif., Fresno River near..... 240

Day Creek near Etiwanda, Calif......... 80

Day Creek diversion, Calif., discharge

measurements of.................. 440

Deer Creek (tributary to Sacramento

River) nearVlna, Calif.......... 325

Deer Creek (tributary to Yuba River)

near Smartville, Calif........... 361

Delta, Calif., Sacramento River at..... 299

Devil Canyon Creek near San Bernardino

Calif............................ 74

Don Pedro Reservoir near La Grange,

Calif............................ 254

Dos Palos, Calif., San Joaquin River

near............................. 217

Page

Dos Pueblos Canyon Creek, Calif., discharge measurements of........... 440

Doaglas City, Trinity River near....... 436

Downey, Calif., Los Angeles River near 109 

Rio Hondo near..............."........ 119

Drew Creek near Lakeview, Oreg......... 297

Drew Creek Reservoir, Oreg., contents

of............................... 297

Dry Creek (Mokelumne River Basin) near

Gait, Calif...................... 294

Dry Creek (Russian River Basin) near

Cloverdale, Calif............. .'.404-405

Duarte, Calif., Fish Creek near........ 3, 97

Ducor, Calif., White River near........ 200

Dulzura, Calif., Cottonwood Creek

near...........................15,16,17

Dulzura conduit near................. 20

Tia Juana River near................. 18

Dulzura conduit near Dulzura, Calif.... 20

Dunneville, Calif., Pacheco Creek near. 178

Eagle Canyon Creek, Calif., discharge

measurements of.................. 440

East Highlands, Calif., Plunge Creek

near............................. 65

Eaton Creek near Pasadena, Calif....... 123

Echo Lake conduit near Vade, Calif..... 377

Edenvale, Calif., Alamitos Creek near.. 184 

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............................... 26

El Dorado Canal, Calif., discharge

measurement of................... 442

near Kyburz, Calif................... 381

El Nido, Calif., Chamberlain Slough

near............................. 242

San Joaquin River near............... 218

El Toro, Calif., Aliso Creek at........ 50

Eleanor Creek near Hetch Hetchy, Calif. 260 

Elsinore, Calif., Elsinore Lake at..... 83

San Jacinto River near............... 83

Elsinore Lake at Elsinore, Calif....... 83

Enterprise, Calif., Palermo Canal at... 346 

South Fork Feather River at.......... 345

Estrella Creek, Calif., discharge

measurements of.................. 442

Etiwanda, Calif., Day Creek near.....'.. 80

Exchequer, Calif., Lake McClure at..... 247

Merced River at...................... 248

Fair Oaks, Calif., American River at... 367 

Fall Brook, Calif., Santa Margarita

River near....................... 44

Fall Creek at Copco, Calif............. 428

Fall River Mills, Calif., Pit River at. 309 

Falls Creek near Hetch Hetchy, Calif... 257 

Feather River at Nicolaus, Calif....... 333

Middle Fork, at Bidwell Bar, Calif... 344 

below Sloat, Calif................. 343

near Clio, Calif................... 342

near Oroville, Calif................. 332

North Fork, at Big Bar, Calif........ 331

near Prattville, Calif............. 330

South Fork, at Enterprise, Calif..... 345

West Branch, near Yankee Hill, Calif. 339 

Feather River Basin, Calif., discharge

measurements in.................. 442

gaging-station records In...........329-364

Fillmore, Calif., Flllmore Irrigation

Co.'s canal near................. 132

Sespe Creek near..................... 131

Fillmore Irrigation Co.'s canal near

Fillmore, Calif.................. 132

Fine Gold Creek near Friant, Calif..... 236

Fish Creek near Duarte, Calif.......... 3, 97

Fish Lake, Oreg., Cascade Canal near... 423 

Floods, special reports on.". ........... 11

Florence Lake, Calif., South Fork San

Joaquin River near............... 223
INDEX

Page 

Florence Lake near Big Creek, Calif.... '222

Fontana, Calif., Lytle Creek near...... 73-76

Fontana pipe line. See Lytle Creek

near Fontana.

Fort Jones, Calif., Scott River near... 433 

Foster, Calif., San Vicente Creek at... 

Fourmile Lake Reservoir, Oreg., contents

Ice House, Calif., South Fork Silver

Creek near.......................

29 Igo, Calif., Clear Creek near..........

Indian Creek near Crescent Mills, Calif.

of. 421

Fremont Ford Bridge, Calif., San

Joaquin River at................. 219" Isabella dam site, Calif., Kern River

Fresno River near Daulton, Calif....... 240

near Knowles, Calif.................. 239

Fresno River Basin, Calif., gagingstation records In..............239-240

Friant, Calif., Cottonwood Creek near.. 237 

Fine Gold Creek near...'.............. 236

Little Dry Creek near................ 238

Millerton Lake at.................... 214

San Joaquin River below.............. 215

Fullerton, Calif., Brea Creek at....... 104

Brea Creek near.

Fullerton Creek at...................

Fullerton Creek at Fullerton, Calif.... 

below Fullerton Dam, near Brea, Calif.

103

106

106

105

Gait, Calif., Dry Creek near........ 294

Gary, Calif., Sisquoc River near....... 163

Georgetown, Calif., Georgetown ditch

near............................ 371,374

Pilot Creek near....................372-373

Rubicon River near................... 370

Georgetown ditch above Pilot Creek,

near Georgetown, Calif........... 371

near Georgetown, Calif............... 374

Glendora, Calif., Dalton Creek near.... 99

Little Dalton Creek near............. 100

Goleta, Calif., Alascadero Creek near.. 139 

San Jose Creek near.................. 140

Goodyears Bar, Calif., North Fork Yuba

River below...................... 353

Goose Lake Basin, Oreg., gaging-station

records in......................297-298

Graniteville, Calif., Bowman Lake near. 358 

Graton, Calif., Laguna de Santa Rosa

near............................. 406

Greenspot pipe line near Mentone,"

Calif............................ 61

Guadalupe, Calif., Los Capitancillos

Creek at......................... 186

Santa Maria River at................. 159

Guadalupe River at San Jose, Calif..... 185

Guadalupe River Basin, Calif., gagingstation records in..............184-188

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.......

Hamilton City, Calif., Stony Creek near 

Hansen Dam, Calif., Tujunga Creek below 

Harris, Calif., San Antonio Creek at... 

Hat Creek near Hat Creek, Calif........

Hayward, Calif., San Lorenzo Creek at.. 

Healdsburg, Calif., Russian River near. 

Hetch Hetchy, Calif., Cherry Creek near

Eleanor Creek near...................

Falls Creek near.....................

Hetch Hetchy Reservoir at............

Lake Eleanor near....................

Tuolumne River dear..................

Hetch Hetchy Reservoir at Hetch Hetchy, 

Calif............................

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.......... 130

Hot Spring Canyon Creek, Calif., discharge measurements of........... 441

Huasna River near Santa Maria, Calif... 161 

Hullville, Calif., Eel River at........ 408

Lake Pillsbury at.................... 407

Huntington Lake, Calif., Big Creek

below............................ 229

near Big Creek, Calif................ 228

Huntington-Shaver conduit at outlet,

Calif............................ 232

Hyatt Prairie Reservoir, Oreg., contents of....'...................

Isabella, Calif., South Fork Kern River

at.

below.

Jacksonville, Calif., Woods Creek near. 

Jamul Creek near Jamul, Calif..........

Jenny Lind, Calif., Calaveras River at. 

Jones Bar, Calif., South Fork Yuba 

River at.

Julian, Calif., Boulder Creek near......

Kaweah River near Three Rivers, Calif.. 

North Fork, at Kaweah, Calif.........

Keddie, Calif., Spanish Creek at.......

Keenbrook, Calif., Cajon Creek near....

Keene Creek near Lincoln, Oreg.........

Keene Creek Canal near.Ashland, Oreg... 

Kelsey Creek near Kelseyville, Calif... 

Kelseyville, Calif., Kelsey Creek near. 

Kennedy Meadows, Calif., Middle Fork

Stanislaus River at...........'...

Keno, Oreg., Klamath River at..........

Keno Canal at Klamath Falls, Oreg. 

Kerckhoff powerhouse, Calif., San

421

385

319

336

199

195

263

22

278

357

28

205

206

337

78

430

431

393

393

266

418

425

Joaquin River below. ............ .3, 213

Kern River below Isabella dam site,

Calif............................

near Bakersf ield , Calif ..............

near Kernville, Calif .............. .193

South Fork, at Isabella, Calif.......

Kern River Basin, Calif. , gagingstation records in. ............ .193

Kern River No. 3 Canal near Kernville, 

Calif.

Kernville, Calif., Kern River near....193'

Kern River No. 3 Canal near..........

Keswick, Calif., Sacramento River at... 

Kings River above North Fork, Calif....

at Piedra, Calif.....................

North Fork, below Rancheria Creek, 

Calif.............................

near Cliff Camp, Calif.

Kirkwood, Calif., Silver Lake Outlet

near.............................

Twin Lakes Outlet near...............

Kittridge, Calif., Merced River at.....

Klamath Falls, Oreg., "A" Canal at.....

Keno Canal at........................

Link River at........................

Upper Klamath Lake near..............

Klamath River at Keno, Oreg............

at Somesbar, Calif...................

below Falls Creek, near Copco, Calif.

diversion from, to Lost River near 

Olene, Oreg......................

Klamath River Basin, Calif.-Oreg., discharge measurement in............

gaging-station records in........... 415<

smaller reservoirs in................

Knights Ferry, Calif., Oakdale Canal

Knights Landing, Calif., Sacramento

River at.

Knights Landing Ridge Cut, Calif., discharge measurements of.

Knowles, Calif., Fresno River near..... 

Kosk Creek, Calif., discharge measurement of.

Kyburz, Calif., El Dorado Canal near...

South Fork American River near.

La Grange, Calif., Don Pedro Reservoir 

near.............................

Modesto Canal near...................

Tuolumne River near..................

Tarlock Canal near...................

La Zaca Creek at Buellton, Calif.......

Labrea Creek near Sisquoc, Calif.......

Laguna de Santa Rosa near Graton, Calif.

195

196

-194 

199

-199

197

-194 

197 

301

208

209

211

210

379

380

246

424

425

417

416

418

420

419

427

442

-437 

421

277

276

306

442

239

442

381

375

254

264

255

265

154

163

406
446 INDEX

Lake Almanor near Prattvllle, Calif....

Lake Eleanor near Hetch Hetchy, Calif..

Lake Hodges, Calif., ^an Dieguito River

at...............................

Lake McClure at Exchequer, Calif.......

Lake Pillsbury at Hullville, Calif.....

Lakeport, Calif., Clear Lake at........

Lakeview, Oreg., Oottonwood Creek near. 

Drew Creek near......................

Lancha Plana, Calif., Mokelumne River

Merced River Slough near Newman,

247 Mesa Grande, Calif., San Luis Rey River

407

389

298 Michigan Bar, Calif., Cosumnes River at 

297 Middle Tuolumne River at Oakland Recreation Camp, Calif................. 262

at....!......!!.................. 285 Mill Creek (Sacramento River Basin)

Las Flores Creek, Calif., discharge

measurements of ..I!.............. 439 Mill Creek (Santa Ana River Basin) near

Lewiston, Calif., Trinity River at..... 

Likely, Calif., South Pork 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 Fernando,

Calif............................

Lockeford, Calif., Bear Creek near.....

Lompoc, Calif., Salsipuedes Creek near.

435

313

430 Mill Creek power; canals 2 and 3 near

417

429 Millerton Lake at Friant, Calif........ 214

Milton, Calif., Middle Pork Yuba River

100

238 Milton-Bowman tunnel at outlet, Calif.. 

Miranda, Calif., South Fork Eel River

Mission Creek near Montebello, Calif... 

HSModesto, Calif., Tuolumne River at..... 

281 Modesto Canal near La Grange, Calif....

Mokelumne Peak, Calif., Cold Creek near

Santa Ynez River near...........147,148,149 Mokelumne River at Lanoha Plana, Calif.

Long Barn, Calif., South Fork Stanislaus River near.................. 273

Tuolumne Canal near.................. 275

Long Beach, Calif., Los Angeles River

at. .............................. 110

Lopez Canyon Creek, Calif., discharge

measurements of.................. 441

Los Alamitos, Calif., San Gabriel River

near............................. 94

Los Angeles River at Long Beach, Calif; 110 

at Los Angeles, Calif................ 108

347

351

413 

124 

256 

264 

289 

285 

at Woodbridge, Calif ................. 287

Middle Pork, at West Point, Calif.... 291

near Clements, Calif................. 286

near Mokelumne Hill, Calif........... 284

North Pork, below Salt Springs Dam,

Calif....................:....... 283

South Pork, near West Point, Calif... 292 

Mokelumne River Basin, Calif., gagingstation records in..............282-296

at Sepulveda Dam, Calif.......... 107 Monrovia, Calif., Sawpit Creek near....

near Dcwney, Calif................... - ~ 109-~ Montebello, Calif., Mission Creek near.

Los Angeles River Basin, Calif., gagingstation records in..............107-124

Los Banos, Calif., Salt Slough near.... 243

Los Capitancillos Creek at Guadalupe,

Calif............................ 186

Los Gatos Creek below Los Gatos, Calif. 187 

Los Molinos, Calif., Mill Creek near... 323 

Lost River diversion canal near Olene,

Oreg............................. 426

Lower Lake, Calif., Cache Creek near... 390 

North Fork Cache Creek near..........3, 394

Lytle Creek, east channel of, at San

Bernardino, Calif................ 77

near Fontana, Calif.................. 75-76

MoCloud River above Shasta Reservoir,

Calif...........................317-318

near McCloud, Calif.................. 316

McConnell, Calif., Cosumnes River at... 296 

Madrone, Calif., Coyote Creek near..... 189

Malibu Creek at Crater Camp, near

Calabasas, Calif................. 127

Marysville, Calif., Yuba River at...... 350

Matilija Creek at Matilija, Calif...... 134

North Fork, at Matilija, Calif....... 136

Medley Lakes Outlet near Vade, Calif... 378 

Meeks & Daley Canal near Colton,

Calif............................ 79

Melones powerhouse, Calif., Stanislaus

River below...................... 269

Mslones Reservoir at Melones Dam, Calif. 268 

Mendota, Calif., San Joaquin River near 216 

Mentone, Calif., Greenspot pipe line

near............................. 61

Mill Creek near...................... 62

Santa Ana River near. ................ 51-52

Southern California Edison Co.'s

canal near....................... 60

Merced Ri\'er at Exchequer, Calif....... 248

at Happy Isles Bridge, near Yosemite,

Calif. ........................... 244

at Kittridge, Calif.................. 246

at Pohono Bridge, near Yosemite,

Calif............................ 245

near Stevinson, Calif................ 249

Page

station records in..............244-251

Page

329 Merced River Basin, Calif., gaging259

34 Calif.

near. 

Santa Ysabel Creek near.

251

38

30

295

near Los Molinos, Calif.

Mentone, Calif. 

Mill Creek power canal 1 near Craftonville, Calif.

Craftonville, Calif.

323

62

63

Mono Creek near Vermilion Valley,

Calif.

Rio Hondo near. 

Montecito, Calif., Santa Ynez River

Montgomery Creek, Calif., Pit River

Morena Dam, Calif., Cottonwood Creek at 

Morgan Hill, Calif., Uvas Creek near... 

Murrieta Creek at Temecula, Calif......

Nacimiento River, Calif., discharge 

measurements of...............

near San Miguel, Calif.

227

120

124

118

141

312

15

179

442 

174 

Napa River near St. Helena, Calif...... 397

Napa River Basin, Calif., gagingstation records in..............397-398

Narrows Dam, Calif., Yuba River at..... 349

Nelson Creek, Calif., discharge 

measurement of

Nestor, Calif., Tia Juana River near... 

Newman, Calif., Merced River Slough

near.............................

Orestimba Creek near.................

San Joaquin R iver near...............

Nicolaus, Calif., Feather River at.....

Niles, Calif., Alameda Creek near......

North Drew Canal, Oreg., diversion by.. 

North Fork, Calif., Kings River above.. 

North Fork Dam, Calif., North Fork

American River at.

442

19

251

251

220

333

191

297

208

'365

352

399

North San Juan, Calif., Oregon Creek 

near...........................

Novato Creek near Novato, Calif......

Oakdale Canal near Knights Ferry, Calif. 277 

Oakland Recreation Camp, Calif., Middle 

Tuolumne River at................

South Pork'Tuolumns River near.......

Oceanside, Calif., San Luis River at... 

Olene, Oreg., diversion from Klamath

River to Lost River near.........

Lost River diversion canal near......

O'Neill ditch near Ysidora, Calif......

Orange Cove, Calif., Sand Creek near... 

Oregon Creek, Calif., Middle Fork Yuba

River above.

262

261

42

427

426

47

207

348
INDEX 447

Oregon Creek near North San Juan, Calif. '352 

Orestimba Creek near Newraan, Calif..... 251

Oroville, Calif., Feather River near... 332 

Otay River at Savage Dam, Calif........ 23

Otay River Basin, Calif., gagingstation records in............... 22-23

Pacheco Creek near Dunneville, Calif... 178 

Pacific Gas & Electric Co. conduit near

Springville, Calif............... 203

Pacific Gas & Electric Co. conduit No. 

3 near Crane Valley Reservoir, 

Calif............................ 234

Pacoima Creek near San Fernando, Calif. Ill 

Pajaro River near Chi.ttenden, Calif.... 177

Pajaro River Basin, Calif., gagingstation records in..............177-181

Pala, Calif., San Luis Rey River near.. 39,40 

Palermo Canal at Enterprise, Calif..... 346

Pardoe Camp, Calif., Bear River at..... 290

Pasadena, Calif., Arroyo Seco near..... 117

Eaton Creek near..................... 123

Paskenta, Calif., Thomes Creek at...... 324

Paso Robles, Calif., Salinas River at.. 171 

Philadelphia Canal near Strawberry,

Calif............................ 274

Pico, Calif., San Gabriel River at..... 93

Piedra, Calif., Kings River at......... 209

Pilot Creek near Georgetown, Calif....372-373

Pinehurst, Oreg., Little Beaver Creek

at................................ 429

Piru, Calif., Hopper Creek near........ 130

Piru Creek near...................... 129

Piru Creek near Piru, Calif............ 129

Pit River at Big Bend, Calif........... 311

at Fall River Mills, Calif........... 309

below Pit No. 4 Dam, Calif........... 310

near Canby, Calif.................... 308

near Montgomery Creek, Calif......... 312

South Fork, near Likely, Calif....... 313

Pit River Basin, Calif., discharge

measurements in.................. 442

gaging-station records in...........308-318

Pitman Creek below Tamarack Creek,

Calif............................ 230

Placerville, Calif., Silver Creek near. 384 

Pleyto, Calif., San Antonio River at... 175 

Plunge Creek near East Highlands, Calif. 65 

Porterville, Calif., Tule River near... 202 

Potter Valley, Calif., Eel River near.. 409 

Potter Valley powerhouse tailrace

near............................. 411

Potter Valley powerhouse tailrace near

Potter Valley, Calif............. 411

Pozo, Calif., Salinas Reservoir near... 168 

Salinas River near................... 167

Toro Creek near...................... 173

Prado, Calif., Santa Ana River near.... 57,58

Prattville, Calif., Butt Creek near...334,335 

Lake Almanor near.................... 329

North Fork Feather River near........ 330

Publications on stream flow by Geological Survey.......................5-9,11

by State agencies.................... 9-10

Putah Creek near Guenoc, Calif......... 395

near Winters, Calif.................. 396

Ramona, Calif., Santa Maria Creek near. 37

Santa Ysabel Creek near.............. 31

Rancheria Creek, Calif., North Fork

Kings River below................ 211

Rattlesnake Bridge,' Calif., North Fork

American River at................ 366

Red Bluff, Calif., Antelope Creek near. 322

Sacramento River near................ 302

Redding, Calif., Shasta Reservoir near. 300 

Redlands, Calif., San Timoteo Creek

near............................. 66

Rio Hondo near Downey, Calif........... 119

near Montebello, Calif............... 118

Ripon, Calif., Stanislaus River at..... 270

Rogers Creek near Azusa, Calif......... 96

Rubicon River near Georgetown, Calif... 370 

Runoff in inches, definition of........ 1

Russian River at Guerneville, Calif.... 403

East Fork, nepr Calpella, Calif...... 400

Russian River near Healdsburg, Calif... ' 402 

near Hopland, Calif.................. 401

Russian River Basin, Calif., gagingstation records in..............400-406

Sacramento, Calif., American River at.. 368

Sacramento River at Butte City, Calif.. 303

at Colusa, Calif..................... 304

at Delta, Calif...................... 299

at Keswick, Calif.................... 301

at Knights Landing, Calif............ 306

at Verona, Calif..................... 307

below Wilkins Slough, Calif.......... 305

near Red Bluff, Calif................ 302

Sacramento River Basin, Calif., gagingstation records in..............299-307

St. Helena, Calif., Conn Creek near.... 398

Napa River near...................... 397

Salinas Reservoir near Pozo, Calif..... 168

Salinas River above Pilatas Creek, near

Santa Margarita, Calif........... 169

at Paso Robles, Calif................ 171

near Pozo, Calif..................... 167

near Santa Margarita, Calif.......... 170

near Spreckels, Calif................ 172

Salinas River Basin, Calif., discharge

measurements in.................441-442

gaging-station records in...........167-176

Salmon Falls, Calif., Webber Creek near 387 

Salmon River at Somesbar, Calif........ 434

Salsipuedes Creek, Calif., discharge

measurements of.................. 441

near Lompoc, Calif................... 155

Salt Slough near Los Banos, Calif...... 243

Salt Springs Dam, Calif., North Fork

Mokelumne River below............ 283

Tiger Creek powerhouse conduit below. 288 

Salt Springs Reservoir near West Point,

Calif............................ 282

San Antonio Creek (Santa Ana River

Basin) near Claremont, Calif..... 85-86

San Antonio Creek (tributary to Pacific

Ocean) at Harris, Calif.......... 156

San Antonio River at Pleyto, Calif..... 175

discharge measurements of............ 442

San Benito River near Willow Creek

School, Calif.................... 180

San Bernardino, Calif., Devil Canyon

Creek near....................... 74

Lytle Creek (east channel) at........ 77

Santa Ana River near................. 53

San Diego River at El Capitan Dam,

Calif............................ 26

near Santee, Calif................... 27

San Diego River Basin, Calif., gagingstation records in............... 26-29

San Dieguito conduit, Calif., discharge

measurements of.................. 439

San Dieguito River at.Lake Hodges,

Calif............................ 34

discharge measurements of............ 439

near San Pasqual, Calif.............. 33

San Dieguito River Basin, Calif.,

gaging-station records in........ 30-37

San Dimas Creek near San Dimas, Calif.. 98 

San Fernando, Calif., Little Tujunga

Creek near....................... 115

Pacoima Creek near................... Ill

San Gabriel River at Pico, Calif....... 93'

at Spring Street, near Los Alamitos,

Calif....................../..... 94

below Santa Fe Dam, near Baldwin Park,

Calif............................ 92

East Fork, near Camp Bonita, Calif... 90 

near Azusa, Calif.................... 91

West Fork, at Camp Rincon, Calif..... 95

San Gabriel River Basin, Calif., gagingstation records in...............90-106

San Jacinto River near Elsinore, Calif. 83 

near San Jacinto, Calif.............. 82

San Joaquin River above Big Creek,

Calif............................ 212

at Fremont Ford Bridge, Calif........ 219

below Friant, Calif.................. 215

below Kerckhoff powerhouse, Calif....3, 213

near Dos Palos, Calif................ 217
INDEX

San Joaquln River near El Nido, Calif... 218 

near Mendota, Calif.................. 216

near Newman, Calif................... 220

near Vernalis, Calif................. 221

South Fork, near Florence Lake, Calif. 223 

tributaries above Fresno River,

gaging-station records on.......222-238

San Joaquin River Basin, Calif., gagingstation records in..............212-221

San Jose, Calif., Guadalupe River at... 185 

San Jose Creek (tributary to San Gabriel

River) near Whittier, Calif...... 101

San Jose Creek (directly tributary to

Pacific Ocean) near Goleta, Calif. 140 

San Juan Capistrano, Calif., San Juan

Creek near....................... 48

Trabuco Creek near................... 49

San Juan Creek near San Juan Capistrano,

Calif............................ 48

San Juan Creek Basin, Calif., gagingstation records in............... 48-49

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.. 182 

San Luis Obispo, Calif., Steiner Creek

near............................. 166

San Luis Rey River at Lake Henshaw, near

Mesa Grande, Calif............... 38

at Mouserate Narrows, near Pala,

Calif............................ 40

at Oceanside, Calif.................. 42

below Pala diversion dam, near Pala,

Calif............................ 39

near Bonsall, Calif.................. 41

San Luis Rey River Basin, Calif.,

^aging-station records in ........ 38-42

San Mateo Creek, Calif., discharge

measurements of.................. 439

San Miguel, Calif., Nacimiento River

near............................. 174

San Pasqual, Calif., Guejito Creek at.. 36 

Guejito Creek near................... 35

San Dieguito River near.............. 33

Santa Ysabel Creek near.............. 32

San Timoteo Creek near Redlands, Calif. 66 

San Vicente Creek at San Vicente Dam,

at Foster, Calif................. 89

Sand Creek near Orange Cove, Calif..... 207

Santa Agueda Creek near Santa Ynez,

Calif............................ 153

Santa Ana, Calif., Santa Ana River at.. 59 

Santiago Creek at.................... 89

Santa Ana River at Auburndale Bridge,

near Corona, Calif............... 56

at E Street Bridge, near San

Bernardino, Calif................ 53

at Hamner Avenue, near Corona, Calif. 55 

at Riverside Narrows, at Arlington,

Calif............................ 54

at Santa Ana, Calif.................. 59

below Prado Dam, near Prado, Calif... 57 

discharge measurements of...........439-440

near Mentone, Calif.................. 51-52

near Prado, Calif.................... 58

Santa Ana River Basin, Calif., gagingstation records in............... 51-89

Santa Anita Creek near Sierra Madre,

Calif............................ 121

Santa Barbara, Calif., Santa Ynez River

near............................142,143

Santa Clara River near Saugus, Calif... 128 

Santa Clara River Basin, Calif., gagingstation records in..............128-133

Santa Cota Creek, Calif., discharge

measurements of.................. 441

Santa Cruz Creek above Stuke Canyon,

near Santa Ynez, Calif........... 151

near Santa Ynez, Calif............... 152

Santa Margarita, Calif., Salinas River

near............................169,170

Santa Margarita Creek near........... 173

Tassajero Creek near................. 174

Santa Margarita Creek near Santa

Margarita, Calif................. 173

Santa Margarita River at Ysidora, Calif. 45 

near Fall Brook, 'Calif................ 44

Santa Margarita River Basin, Calif.,

gaging-station records in........ 42-47

Santa Maria, Calif., Alamo Creek near.. 160 

Cuyama River near.................... 158

Huasna River near.................... 161

Santa Maria Creek near Ramona, Calif... 37

Santa Maria River at Guadalupe, Calif.. 159

discharge measurements of............ 441

Santa Maria River Basin, Calif., gagingstation records in..............157-164

Santa Paula Creek near Santa Paula,

Calif............................ 133

Santa Ynez, Calif., Santa Agueda Creek

near...............:............. 153

Santa Cruz Creek near...............151,152

Santa Ynez River near...............144,145

Santa Ynsz River above Gibralter Dam,

near Santa Barbara, Calif........ 142

at barrier, near Surf, Calif.....'.... 150

at H Street, near Lompoc, Calif...... 149

at Jameson Lake, near. Montecito,

Calif...... .....'................. 141

at Narrows, near Lompoc, Calif....... 147

at Solvang, Calif.................... 146

below Gibraltar Dam, near Santa

Barbara, Calif................... 143

discharge measurements of............ 440

near Lompoc, Calif................... 148

near Santa Ynez, Calif............... 145

Santa Ynez River Basin, Calif., gagingstation records in..............141-155

Santa Ysabel Creek near Mesa Grande,

Calif............................ 30

near Ramona, Calif................... 31

near San Pasqual, Calif.............. 32

in tee, Calff., San Diego River near... 27 

Santiago Creek at Santa Ana, Calif..... 89

near Villa Park, Calif............... 88

Saratoga, Calif., Campbell Creek at.... 188

Saugus, Calif., Santa Clara River near. 128 

Savage Dam, Calif., Otay River at...... 23

iwpit Creek near Monrovia, Calif...... 120

Scotia, Calif., Eel River at........... 410

Scott River near Fort Jones, Calif..... 433

Second-feet per square mile, definition

of............................... 1

Second-foot, definition of............. 1

Second-foot-day, definition of......... 1

Sepulveda Dam, Calif., Los Angeles

River at......................... 107

Sespe Creek near Fillmore, Calif....... 131

Shasta Reservoir, Calif., McCloud River

above...........................317-318

near Redding, CalifT ................ 300

Squaw Creek above .................... 315

Shasta River near Yreka, Calif......... 432

Shaver Lake near Big Creek, Calif...... 231

Sierra Madre, Calif., Little Santa

Anita Creek near................. 122

Santa Anita Creek near............... 121

Silver Creek at Union Valley, Calif.... 383

near Placerville, Calif.............. 384

Siuth Fork, near Ice House, Calif.... 385

Silver Lake, Calif., discharge measurement of.......... L................ 442

liver Lake Outlet near Kirkwood, Calif. 379 

Sisquoc, Calif., Labrea Cresk near..... 163

Sisquoc River near................... 162

Tepusequet Creek near................ 164

Sisquoc River near Gary, Calif......... 163

-near Sisquoc, Calif.................. 162

Sloat, Calif., Middle Fork Feather

River below...................... 343

Smartville, Calif., Deer Creek near.... 361

Smith River near Crescent City, Calif.. 438 

Soledad, Calif., Arroyo Seco near...... 176

Solvang, Calif., Santa Ynsz River at... 146 

Somesbar, Calif., Klamath River at..... 420

Salmon Ri-ver at...................... 434

South San Joaquin Canal near Knights

Ferry, Calif..................... 276

Southern California Edison Co.'s canal

near Mentone, Calif.............. 60

Southern California Edison Co.'s conduit near Claremont, Calif....... 87

Spanish Creek at Keddie, Calif......... 337

Sprague River near Chiloquin, Oreg..... 422
INDEX 449

Page

Spreckels, Calif., Salinas River near.. 172 

Spring Valley ditch near Yankee Hill,

Calif............................ 341

Springvllle, Calif., North Fork of

Middle Fork Tule River near...... 201

Pacific Gas & Electric Co. conduit

near............................. 203

Squaw Creek above Shasta Reservoir,

Calif............................ SIS

Stage-discharge relation, definition of 1 

Stanislaus River at Ripon, Calif....... 270

below Melones powerhouse, Calif...... 269

Middle Fork, at Kennedy Meadows,

Calif............................ 266

at San Bar Flat, near Avery, Calif. 267 

North Fork, near Avery, Calif........ 271

South Fork, at Strawberry, Calif..... 272

near Long Barn, Calif.............. 273

Stanislaus River Basin, Calif., gagingstation records in..............266-277

Steiner Creek near San Luis Obispo,

Calif............................ 166

Stevens Creek near Cupertino, Calif.... 183

Stevinson, Calif., Merced River near... 249 

Stockton diverting canal at Stockton,

Calif............................ 280

Stony Creek near Hamilton City, Calif.. 327 

Strawberry, Calif., Philadelphia Canal

near. ............................ 274

South Fork Stanislaus River at....... 272

Strawberry Creek near Arrowhead Springs,

calif............................ 69

Success, Calif., South Fork Tule River

near............................. 204

Sunland, Calif., Tujunga Creek near.... 113

Surf, Calif., Santa Ynez River near.... 150

Sweetwater River at Loveland Dam, near

Alpine, Calif.................... 24

at Sweetwater Dan, Calif............. 25

Sweetwater River Basin, Calif., gagingstation records in............... 24-25

Tamarack Creek, Calif., Pitman Creek

below............................ 230

Tassajera Creek near Santa Margarita,

Calif............................ 174

Tecolate Canyon Creek, Calif., discharge measurements of........... 440

Temeeula, Calif., Murrieta Creek at.... 46

Temesula Creek near.................. 42,43

Temecula Creek at Nigger Canyon, near

Temecula, Calif.................. 42

at Railroad Canyon, near Temecula,

Calif............................ 43

Temescal Creek near Corona, Calif...... 84

Tenaya Creek near Yosemite, Calif...... 250

Tepisquet Creek near Sisquoc, Calif.... 164

Terms, definition of................... 1-2

Page 

Tule River, South Fork, near Success,

Calif............................ 204

Tuolumne Canal near Long Barn, Calif... 275 

Tuolumne River above La Grange Dam,

near La Grange, Calif............ 255

at Modesto, Calif.................... 256

near Hetch Hetchy, Calif............. 253

South Fork, near Oakland Recreation

Camp, Calif...................... 261

Tuolumne River Basin, Calif., gagingstation records in..............252-265

Turlock Canal near La Grange, Calif.... 265

Twin Lakes Outlet near Kirkwood, Calif. 380

Union Valley', Calif., Silver Creek at.. 383 

Upland, Calif., Cucamonga Creek near... 81 

Upper Klamath Lake near Klamath Falls,

Oreg............................. 416

Uvas Creek near Morgan Hill, Calif..... 179

Vade, Calif., Echo Lake conduit near... 377 

Medley Lakes Outlet near............. 378

Valley Springs, Calif., Cosgro/e Creek

near. ............................ 279

Van Duzen River at Bridgeville, Calif.. 414 

Ventucopa, Calif., Cuyama River near... 157 

Ventura, Calif., Coyote Creek near..... 137

Ventura River near................... 135

Ventura River near Ventura, Calif...... 135

Ventura River Basin, Calif., gagingstation records in..............134-137

Vermilion Valley, Calif., Bear Creek

near............................. 226

Mono Creek near...................... 227

Vernalis, Calif., San Joaquin River

near............................. 221

Verona, Calif., Sacramento River at..".. 337 

Villa Park, Calif., Santiago Creek near 83 

Vina, Calif., Deer Creek near.......... 325

Thomes Creek at Paskenta, Calif

Three Rivers, Calif., Kaweah River near 205

Tia Juana River, Calif., discharge

measurements of.................. 439

near Dulzura, Calif.................. 18

near Nestor, Calif................... 19

Tia Juana River Basin, Calif., gagingstation records in............... 15-21

Tiger Creek powerhouse 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 "apistrano, 

Calif............................

Tres Pinos Creek near Tres Pinas, Calif 

Trinity River at Lewiston, calif.......

near Douglas City, Calif............. 435

near Hoopa, Calif.................... 437

Tujonga, Calif., Haines Creek near..... 116

Tujunga Creek below Hansen Dam, Calif.. 114 

near Colby Ranch, Calif.............. 112

near Sunland, Calif.................. 113

Tulare Lake in Kings County, Calif..... 199

Tulare Lake Basin, Calif., gagingstation records in.............. 199-211

Tule Hiver near Porterville, Calif..... 202

North Fork of Middle Fork, near

Springville, Calif............... 201

224

225 

67-68

440

356

70

387

291

282

292

363

200

382

101

305

415

233

180

396

287

293

293

388

263

14

1

340 

Spring Valley ditch near............. 341

West Branch Feather River near....... 339

Yolo, Calif., Cachs Creek at........... 392

Yolo bypass near Woodland, Calif....... 388

Yosemite, Calif., Merced River near...244,245

Tenaya Creek near. .............. .'^ .> 260,

Ysidora, Calif., O'Neill ditch near.... 47

Santa Mirgarita River at............. 45

Yreka, Calif., Shasta River near....... 432

Yuba River at Marysville, Calif........ 350

at Narrows Dam, Calif................ 349

Ward tunnel at intake, Calif...........

at oatlet, Calif.....................

Warm Creek near Colton, Calif..........

rising water east of, discharge

measurements of..................

Washington, Calif., South Fork Yuba

River near.......................

Waterman Canyon Creek near Arrowhead

Springs, Calif....................

Webber Creek near Salmon Falls, Calif.. 

West Point, Calif., Middle Fork

Mokelumne River at...............

Salt Springs Reservoir near..........

South Fork Mokelumne River near......

Wheatland, Calif., Bear River near.....

White River near Ducor, Calif..........

Wh.'tehall, Calif., Alder Creek near....

Whittier, Calif., San Jose Creek near.. 

Wilkins Slough, Calif., Sacramento

River below......................

Williamsor. River below Sprague River

near Cniloquin, Oreg.............

Willow Creek, North Fork, below Crane 

Valley Reservoir, Calif..........

Willow Creek School, Calif., San Benito 

R iver near.......................

Winters, Calif., Putah Creek near......

Woodbridge, Calif., Mokelumne River at. 

Woodbridge Canal at..................

Woodbridge Canal at Woodbridge, Calif.. 

Woodland, Calif., Yolo bypass near.....

Woods Creek near Jacksonville, Calif... 

Work, division of......................

s:ope of.............................

Yankee Hill, Calif., Concow Creek near.
450 INDEX

Yuba River, Middle Fork, above Oregon 

Creek, Calif.....................

at Milton, Calif.....................

North Fork, at Colgate diversion dam, 

Calif............................

Page

348

347

354

Yuba River, North Fork, below Gpodyears

Bar, Calif....................... 353

South Fork, at Jones Bar, Calif...... 357

near Cisco, Calif.................. 355

near Washington, Calif.............. 356

U. S. GOVERNMENT PRINTING OFFICE O 1949