Surface Water Supply 

of the United States 

1950

Part 11. Pacific Slope Basins in California

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

GEOLOGICAL SURVEY WATER SUPPLY PAPER 1181

Prepared in cooperation with the States 

of California and Oregon and other 

agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1952
UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

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

Washington 25, D. C. - Price $1.00 (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)

B. C. Briggs______________________San Francisco, Calif. 

K. N. Philips__________________________Portland, Oreg.

in

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.............. 12

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

Division of work..................................................................... 15

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

Tia Juana River Basin.............................................................. 16

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

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

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

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

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

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

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

San Diego River Basin.............................................................. 22

San Diego River near Santee, Calif............................................... 22

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

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

Santa Ysabel Creek near Ramona, Calif............................................ 24

Santa Ysabel Creek near San Pasqual, Calif....................................... 25

San Dieguito River near San Pasqual, Calif....................................... 25

Guejito Creek near San Pasqual, Calif............................................ 26

Guejito Creek at San Pasqual, Calif.............................................. 27

Santa Maria Creek near Ramona, Calif............................................. 28

San Luis Rey River Basin........................................................... 29

San Luis Rey River below Pala diversion dam, near Pala, Calif.................... 29

San Luis Rey River at Monserate Narrows, near Pala, Calif........................ 30

San Luis Rey River near Bonsall, Calif........................................... 30

Sari Luis Rey River at Oceanside, Calif........................................... 31

Santa Margarita River Basin........................................................ 31

Temecula Creek at Nigger Canyon, near Temucula, Calif............................ 31

Temecula Creek at Railroad Canyon, near Temecula, Calif.......................... 32

Santa Margarita River near Fall Brook, Calif..................................... 33

Santa Margarita River at Ysidora, Calif.......................................... 34

Murrieta Creek at Temecula, Calif................................................ 34

O'Neill ditch near Ysidora, Calif................................................ 35

San Juan Creek Basin............................................................... 36

San Juan Creek near San Juan Capistrano, Calif................................... 36

Aliso Creek Basin.................................................................. 38

Aliso Creek at El Toro, Calif.................................................... 38

Peters Canyon Wash Basin........................................................... 39

San Diego Creek near Irvine, Calif............................................... 39

Santa Ana River Basin.............................................................. 40

Santa Ana River near Mentone, Calif.............................................. 40

Santa Ana River at E Street Bridge, near San Bernardino, Calif.................... 42

Santa Ana River at Riverside Narrows, near Arlington, Calif...................... 43

Santa Ana River at Hamner Avenue, near Corona, Calif............................. 44

Santa Ana River at Auburndale Bridge, near Corona, Calif......................... 45

Santa Ana River below Prado Dam, near Prado, Calif............................... 46

Santa Ana River near Prado, Calif................................................ 47

Santa Ana River at Santa Ana, Calif.............................................. 48

Greenspot pipe line near Mentone, Calif.......................................... 49

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

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

San Timoteo Creek near Redlands, Calif........................................... 54

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

Warm Creek near Colton, Calif..................................................... 56

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

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

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

Devil Canyon Creek near San Bernardino, Calif.................................... 62

Lytle. Creek near Fontana, Calif.................................................. 63

Lytle Creek (east channel) at San Bernardino, Calif.............................. 65

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

Lone Pine Creek near Keenbrook, Calif............................................ 67

Meeks & Daley Canal near Colton, Calif........................................... 68

Day Creek near Etiwanda, Calif................................................... 69

Cucamonga Creek near Upland, Calif............................................... 70

San Jacinto River near San Jacinto, Calif........................................ 71

San Jacinto River near Elsinore, Calif........................................... 73

Elsinore Lake at Elsinore, Calif................................................. 73
VI CONTENTS

Gaging-station records Continued.

Santa Ana River Basin Continued. Page

Temescal Creek near Corona, Calif............................................... 74

Bautista Creek near Hemet, Calif................................................ 74

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

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

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

Santiago Creek near Villa Park, Calif........................................... 79

Santiago Creek at Santa Ana, Calif.............................................. 80

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

East Pork San Gabriel River near Camp Bonita, Calif............................. 81

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

San Gabriel River below Santa Fe Dam, near Baldwin Park, Calif.................. 82

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

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

West Pork San Gabriel River at Camp Rincon, Calif,.............................. 84

Rogers Creek near Azusa, Calif.................................................. 85

Pish Creek near Duarte, Calif................................................... 86

San Dlmas Creek near San Dimas, Calif........................................... 87

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

Little Dalton Creek near Glendora, Calif........................................ 89

San Jose Creek near Whittier, Calif............................................. 90

Coyote Creek near Artesia, Calif................................................ 91

Brea Creek below Brea Dam, near Pullerton, Calif................................ 92

Brea Creek at Pullerton, Calif.................................................. 93

Pullerton Creek below Pullerton Dam, near Brea, Calif........................... 94

Pullerton Creek at Pullerton, Calif............................................. 95

Carbon Creek near Yorba Linda, Calif............................................ 95

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

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

Los Angeles River at Los Angeles, Calif......................................... 97

Los Angeles River near Downey, Calif............................................ 98

Los Angeles River at Long Beach, Calif.......................................... 99

Pacoima Creek near San Fernando, Calif.......................................... 100

Tujunga Creek near Colby Ranch, Calif........................................... 101

Tujunga Creek near Sunland, Calif............................................... 102

Tujunga Creek below Hansen Dam, Calif........................................... 103

Little Tujunga Creek near San Fernando, Calif................................... 104

Haines Creek near Tujunga, Calif................................................ 105

Arroyo Seco near Pasadena, Calif................................................ 106

Rio Hondo near Montebello, Calif................................................ 107

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

Sawpit Creek near Monrovia, Calif............................................... 109

Santa Anita Creek near Sierra Madre, Calif...................................... 110

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

Eaton Creek near Pasadena, Calif................................................ 112

Mission Creek near Montebello, Calif.........'................................... 113

Ballona Creek Basin............................................................... 114

Ballona Creek near Culver City, Calif........................................... 114

Topanga Creek Basin............................................................... 115

Topanga Creek near Topanga Beach, Calif......................................... 115

Malibu Creek Basin................................................................ 116

Malibu Creek at Crater Camp, near Calabasas, Calif.............................. 116

Santa Clara River Basin........................................................... 117

Santa Clara River near Saugus, Calif............................................. 117

Piru Creek near Piru, Calif..................................................... 118

Hopper Creek near Piru, Calif................................................... 119

Sespe Creek near Wheeler Springs, Calif......................................... 120

Sespe Creek near Pillmore, Calif................................................ 121

Fillmore Irrigation Co.'s canal near Fillmore, Calif............................ 122

Santa Paula Creek near Santa Paula, Calif....................................... 123

Ventura River Basin............................................................... 124

Matilija Creek above reservoir near Matilija, Calif............................. 124

Matilija Reservoir at Matilija, Calif........................................... 125

Matilija Creek at Matilija, Calif............................................... 126

Ventura River near Ventura, Calif............................................... 127

North Pork Matilija Creek at Matilija, Calif.................................... 128

Coyote Creek near Ventura, Calif................................................ 129

Carpinteria Creek Basin...........................................................' 130

Carpinteria Creek near Carpinteria, Calif....................................... 130

Atascadero Creek Basin............................................................ 131

Atascadero Creek near Goleta, Calif............................................. 131

San Jose Creek Basin.............................................................. 132

San Jose Creek near Goleta, Calif............................................... 132

Santa Ynez River Basin............................................................ 133

Santa Ynez River below Los Laureles Canyon, near Santa Ynez, Calif.............. 133

Santa Ynez River near Santa Ynez, Calif......................................... 134

Santa Ynez River at Solvang, Calif.............................................. 135

Sajita Ynez River near Buellton, Calif........................................... 136

Santa Ynez River at narrows, near Lompoc, Calif................................. 137

Santa Ynez River near Lompoc, Calif............................................. 138

Santa Ynez River at H Street, near Lompoc, Calif................................ 139

Santa Ynez River at barrier, near Surf, Calif................................... 140

Santa Cruz Creek above Stuke Canyon, near Santa Ynez, Calif..................... 141

Santa Cruz Creek near Santa Ynez, Calif......................................... 142

Santa Agueda Creek near Santa Ynez, -Calif....................................... 143
CONTENTS VII

Gaging-station records Continued.

Santa Ynez River Basin Continued. Page

La Zaca Creek at Buellton, Calif................................................ 144

Salsipuedes Creek near Lompoc, Calif............................................ 145

San Antonio Creek Basin........................................................... 146

San Antonio Creek at Harris, Calif.............................................. 146

Santa Maria River Basin.....................................................-.-..... 147

Cuyama River near Ventucopa, Calif.............................................. 147

Cuyama River near Santa Maria, Calif............................................ 148

Santa Maria River at GHiadalupe, Calif........................................... 149

Alamo Creek near Santa Maria, Calif............................................. 150

Huasna River near Santa Maria, Calif............................................ 151

Sisquoc River near Sisquoo, Calif........,................................./.... 152

Sisquoc River near Garey, Calif................................................. 153

La Brea Creek near Sisquoc, Calif............................................... 154

Tepusquet Creek near Sisquoc, Calif............................................. 155

Arroyo Grande Basin................................................................ 156

Arroyo Grande at Arroyo Grande, Calif........................................... 156

Salinas River Basin............................................................... 157

Salinas River near Pozo, Calif.................................................. 157

Salinas Reservoir near Pozo, Calif.............................................. 158

Salinas River above Pilitas Creek, near Santa Margarita, Calif.................. 159

Salinas River at Paso Robles, Calif............................................. 160

Salinas River near Bradley, Calif............................................... 161

Salinas River near Spreckels, Calif............................................. 162

Toro Creek near Pozo, Calif...................................................... 163

Jack Creek near Templeton, Calif................................................ 164

Nacimiento River near San Miguel. Calif......................................... 165

San Antonio River at Pleyto, Calif.............................................. 166

Arroyo Seco near Soledad, Calif................................................. 167

Pajaro River Basin................................................................ 168

Pajaro River near Chittenden, Calif............................................. 168

Pacheco Creek near Dunneville, Calif............................................ 169

Ovas Creek near Morgan Hill, Calif.............................................. 170

San Benito River near Willow Creek School, Calif................................ 171

San Benito River near Hollister, Calif.......................................... 172

Tres Pinos Creek near Tres Pinos, Calif......................................... 173

San Lorenzo River Basin........................................................... 174

San Lorenzo River at Big Trees, Calif........................................... 174

Stevens Creek Basin............................................................... 175

Stevens Creek near Cupertlno, Calif............................................. 175

Guadalupe River Basin............................................................. 176

Alamitos Creek near Edenvale, Calif............................................. 176

Suadalupe River at San Jose, Calif.............................................. 177

Los Capitancillos Creek at Guadalupe, Calif..................................... 178

Los Gatos Creek below Los Gatos, Calif.......................................... 179

Campbell Creek at Saratoga, Calif............................................... 180

Coyote Creek Basin......................................,.....................'.... 181

Coyote Creek near Madrone, Calif................................................ 181

Coyote Creek near Edenvale, Calif............................................... 182

Alameda Creek Basin.................................................:............. 183

Alameda Creek near Niles, Calif................................................. 183

San Lorenzo Creek Basin........................................................... 184

San Lorenzo Creek at Hayward, Calif............................................. 184

Kern River Basin.................................................................. 185

Kern River near Kernville, Calif................................................ 185

Kern River below Isabella dam site, Calif....................................... 187

Kern River near Bakersfield, Calif.............................................. 188

Kern River Ho. 3 Canal near Kernville, Calif.................................... 189

Borel Canal at Tilley Creek, Calif.............................................. 190

South Pork Kern River near Onyx, Calif.......................................... 191

South Pork Kern River at Isabella, Calif........................................ 192

Tulare Lake Basin.................................................................. 193

Tulare Lake in Kings County, Calif.............................................. 193

White River near Ducor, Calif................................................... 193

North Pork of Middle Pork Tule River near Springville, Calif.................... 194

Tule River near Porterville, Calif.............................................. 195

Pacific Oas & Electric Co. conduit near Springville, Calif...................... 196

South Pork Tule River near Success, Calif....................................... 197

Kaweah River near Three Rivers, Calif........................................... 198

North Pork Kaweah River at Kaweah, Calif........................................ 199

Sand Creek near Orange Cove, Calif.............................................. 200

Kings River above North Pork, Calif............................................. 201

Kings River at Piedra, Calif.................................................... 202

North Fork Kings River near Cliff Camp, Calif................................... 203

North Fork Kings River below Rancheria Creek, Calif............................. 204.

Los Gatos Creek above Nunez Canyon, near Coalinga, Calif........................ 205

San Joaquin River Basin........................................................... 206

San Joaquin River main stem..................................................... 206

San Joaquin River above Big Creek, Calif...................................... 206

San Joaquin River below Kerckhoff powerhouse, Calif........................... 207

Millerton Lake at Priant, Calif............................................... 208

San Joaquin River below Priant, Calif.............'............................ 209

San Joaquin River near Mendota, Calif......................................... 210

San Joaquin River-near Dos Palos, Calif....................................... 211

San Joaquin River at Premont Ford Bridge, Calif............................... 212
VIII CONTENTS

Gaging-station records Continued. 

San Joaquin River Basin Continued.

San Joaquin River main stem Continued. Page

San Joaquin River near Newman, Calif.........................."................. 213

San Joaquin River near Vernalis, Calif......................................... 214

San Joaquin River tributaries above Presno River................................. 215

Florence Lake near Big Creek, Calif............................................ 215

South Pork San Joaquin River near Florence Lake, Calif......................... 216

Ward tunnel at intake, Calif................................................... 217

Ward tunnel at outlet, Calif................................................... 218

Bear Creek near Vermilion Valley, Calif........................................ 219

Mono Creek near Vermilion Valley, Calif........................................ 220

Huntington Lake near Big Creek, Calif.......................................... 221

Big Creek below Huntington Lake, Calif......................................... 222

Pitman Creek below Tamarack Creek, Calif....................................... 223

Shaver Lake near Big Creek, Calif.............................................. 224

Huntington-Shaver conduit at outlet, Calif..................................... 225

North Pork Willow Creek below Crane Valley Reservoir, Calif.................... 226

Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif.... 227

Big Sandy Creek near Auberry, Calif............................................ 228

Fine Gold Creek near Priant, Calif............................................. 229

Friant-Kern Canal at Friant, Calif............................................. 230

Madera Canal near Priant, Calif................................................ 231

Cottonwood Creek near Priant, Calif............................................ 232

Little Dry Creek near Priant, Calif............................................ 233

James bypass near San Joaquin, Calif........................................... 234

Panoche Creek below Silver Creek, near Panoche, Calif.......................... 235

San Luis Creek near Los Banos, Calif........................................... 236

Presno River Basin. .............................................................. 236

Presno River near Knowles, Calif............................................... 236

Presno River near Daulton, Calif................................................ 237

Tributaries and diversions between Presno River and Merced River................. 238

Chowchilla River at Buchanan dam site, Calif................................... 238

Salt Slough near Los Banos, Calif.............................................. 239

Merced River Basin............................................................... 240

Merced River at Happy Isles Bridge, near Yosemite, Calif....................... 240

Merced River at Pohono Bridge, near Yosemite, Calif............................ 241

Merced River at Bagby, Calif. ................................................... 243

Lake McClure at Exchequer, Calif............................................... 243

Merced River at Exchequer, Calif............................................... 244

Msroed River near Stevinson, Calif............................................. 245

Tenaya Creek near Yosemite, Calif.............................................. 246

Merced River Slough near Newman, Calif......................................... 247

Orestimba Creek Basin............................................................ 248

Orestimba Creek near Newman, Calif............................................. 248

Tuolumne River Basin............................................................. 249

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.................................. 249

Tuolumne Ri-ver near Hetch Hetchy, Calif........................................ 250

Don Pedro Reservoir near La Grange, Calif...................................... 251

Tuolumne River above La Grange Dam, near La Grange, Calif...................... 252

Tuolumne River at Modesto, Calif............................................... 253

Falls Creek near Hetch Hetchy, Calif........................................... 254

Cherry Creek near Hetch Hetchy, Calif.......................................... 255

Lake Eleanor near Hetch Hetchy, Calif.......................................... 256

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

South Pork Tuolumne River near Oakland Recreation Camp, Calif.................. 258

Middle Tuolumne River at Oakland Recreation Camp, Calif........................ 259

Woods Creek near Jacksonville, Calif........................................... 260

Modesto Canal near La Grange, Calif............................................ 261

Turlock Canal near La Grange, Calif............................................ 262

Stanislaus River Basin........................................................... 263

Middle Fork Stanislaus River at Kennedy Meadows, Calif......................... 263

Middle Fork Stanislaus River at Sand Bar Plat, near Avery, Calif............... 264

Melones Reservoir at Melones Dam, Calif........................................ 265

Stanislaus River below Melones powerhouse, Calif............................... 266

Stanislaus River at Ripon, Calif............................................... 267

North Pork Stanislaus River near Avery, Calif.................................. 268

South Fork Stanislaus River at Strawberry, Calif......................'......... 269

South Fork Stanislaus River near Long Barn, Calif.............................. 270

Philadelphia Canal near Strawberry, Calif...................................... 271

Tuolumne Canal near Long Barn, Calif........................................... 272

South San Joaquin Canal near Knights Perry, Calif.............................. 273

Oakdale Canal near Knights Ferry, Calif........................................ 274

Calaveras River Basin............................................................ 275

Calaveras River at Jenny Lind, Calif........................................... 275

Cosgrove Creek near Valley Springs, Calif...................................... 276

Stockton diverting canal at Stockton, Calif.................................... 277

Bear Creek Basin................................................................. 278

Bear Creek near Lockeford, Calif............................................... 278

Mokelumne River Basin............................................................ 279

Salt Springs Reservoir near West Point, Calif.................................. 279

North Fork Mokelumne River below Salt Springs Dam, Calif....................... 280

Mokelumne River near Mokelumne Hill, Calif..................................... 281

Mokelumne River at Lancha Plana, Calif..'....................................... 282

Mokelumne River near Clements, Calif........................................... 283

Mokelumne River at Woodbridge, Calif.......................................:... 284
CONTENTS IX

Gaging-station records Continued. 

San Joaquin River Basin Continued.

Mokelumne River Basin Continued. Page

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif.................. 285

Cold Creek near Mokelumne Peak, Calif......................................... 286

Bear River at Pardoe Camp, Calif.............................................. 287

Middle Pork Mokelumne River at West Point, Calif............................... 288

South Pork Mokelumne River near West Point, Calif............................. 289

Woodbridge Canal at Woodbridge, Calif......................................... 290

Dry Creek near Qalt, Calif.................................................... 291

North Pork Cosumnes River at Cosumnes Mine, Calif............................. 292

North Fork Cosumnes River near El Dorado, Calif............................... 293

Cosumnes River at Michigan Bar, Calif......................................... 294

Cosumnes River at McConnell, Calif............................................ 295

Camp Creek near Camino, Calif................................................. 296

Sly Park Creek near Pollack Pines, Calif...................................... 297

Goose Lake Basin................................................................. 298

Drew Creek near Lakeview, Oreg................................................ 298

Cottonwood Creek near Lakeview, Oreg.......................................... 299

Sacramento River Basin............................................................ 300

Sacramento River main stem...................................................... 300

Sacramento River at Delta, Calif.............................................. 300

Shasta Lake near Redding, Calif............................................... 301

Sacramento River at Keswick, Calif............................................ 302

Sacramento River near Red Bluff, Calif........................................ 303

Sacramento River at Butte City, Calif......................................... 304

Sacramento River at Colusa, Calif............................................. 305

Sacramento River below Wilkins Slough, Calif.................................. 306

Sacramento River at Knights Landing, Calif.................................... 307

Sacramento River at Verona, Calif.............................................. 308

Pit River Basin................................................................. 309

Pit River near Canby, Calif................................................... 309

Pit River at Pall River Mills, Calif........................................... 310

Pit River below Pit No. 4 Dam, Calif.......................................... 311

Pit River at Big Bend, Calif.................................................. 312

Pit River near Montgomery Creek, Calif........................................ 313

South Pork Pit River near Likely, Calif....................................... 314

Hat Creek near Hat Creek, Calif............................................... 315

Squaw Creek above Shasta Lake, Calif.......................................... 316

McCloud River near McCloud, Calif.. ........................... ............... 317

McCloud River above Shasta Lake, Calif........................................ 318

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

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

Cow Creek Basin................................................................. 320

Cow Creek near Millville, Calif............................................... 320

Cottonwood Creek Basin.......................................................... 321

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

Battle Creek Basin.............................................................. 322

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

Paynes Creek Basin.............................................................. 323

Paynes Creek near Red Bluff, Calif............................................ 323

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

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

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

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

Elder Creek Basin............................................................... 326

Elder Creek near Paskenta, Calif.....................................:........ 326

Elder Creek at Gerber, Calif.................................................. 327

Thomes Creek Basin.............................................................. 328

Thomes Creek at Paskenta, Calif............................................... 328

Deer Creek Basin.............................................. ................. 329

Deer Creek near Vina, Calif................................................... 329

Chico Creek Basin............................................................... 330

Chico Creek near Chico, Calif................'................................. 330

Stony Creek Basin............................................................... 331

Stony Creek near Hamilton City, Calif......................................... 331

Butte Creek Basin............................................................... 332

Butte Creek near Chico, Calif.................................................. 332

Feather River Basin............................................................. 333

Lake Almanor near Prattviile, Calif................'....................,...... 333

North Pork Feather River hear Prattville, Calif............................... 334

North Pork Feather River at Big Bar, Calif.................................... 335

Feather River near Oroville, Calif............................................ 336

Feather River at Nicolaus, Calif.............................................. 337

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif............ 338

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif............ 339

Indian Creek near Crescent Mills, Calif....................................... 340

Spanish Creek at Keddie, Calif................................................ 341

Bucks Creek Reservoir near Bucks Ranch, Calif................................. 342

West Branch Feather River near Yankee Hill, Calif............................. 343

Concow Creek near Yankee Hill, Calif.......................................... 344

Spring Valley ditch near Yankee Hill, Calif................................... 345

Middle Fork Feather River near Clio, Calif..................................... 346

Middle Fork Feather River below Sloat, Calif.................................. 347

Middle Pork Feather River at Bidwell Bar, Calif............................... 348

South Fork Feather River at Enterprise, Calif................................. 349

Lost Creek near Clipper Mills, Calif.......................................... 350
X CONTENTS

Gaging-station records Continued. 

Sacramento River Basin Continued.

Feather River Basin Continued. Page

Palermo Canal at Enterprise, Calif............................................. 351

Middle Yuba River at Milton, Calif............................................. 352

Middle Yuba River above Oregon Cre&k, Calif.................................... 353

Yuba River at Narrows Dam, Calif............................................... 354

Yuba River at Marysville, Calif................................................ 355

Milton-Bowman tunnel at outlet, Calif.......................................... 356

Oregon Creek near North San Juan, Calif........................................ 357

North Yuba River below Goodyears Bar, Calif ............*........................ 358

North Yuba River at Colgate diversion dam, Calif............................... 359

South Yuba River near Cisco, Calif............................................. 360

South Yuba River near Washington, Calif........................................ 361

Bowman Lake near Graniteville, Calif........................................... 362

Canyon Creek below Bowman Lake, Calif.......................................... 363

Bowman-Spaulding Canal at intake, Calif........................................ 364

Deer Creek near Smartville, Calif.............................................. 365

Dry Creek near Brownsville, Calif.............................................. 366

Dry Creek at Virginia Ranch, Calif............................................. 367

Bear River near Colfax, Calif.................................................. 368

Bear River near Auburn, Calif.................................................. 369

Bear River near Wheatland, Calif.................................. ............ 370

Bear River Canal near Colfax, Calif............................................ 371

American River Basin............................................................. 372

North Pork American River at North Fork Dam, Calif.............................. 372

North Pork American River at Rattlesnake Bridge, Calif......................... 373

American.River at Pair Oaks, Calif............................................. 374

American River at Sacramento, Calif............................................ 375

Middle Fork American River near Auburn, Calif.................................. 376

Rubicon River near Georgetown, Calif........................................... 377

Georgetown ditch above Pilot Creek, near Georgetown, Calif..................... 378

Pilot Creek near Georgetown, Calif............................................. 379

Georgetown ditch near Georgetown, Calif........................................ 380

South Pork American River near Kyburz, Calif................................... 381

South Fork American River near Camino, Calif................................... 382

Echo Lake conduit near Vade, Calif............................................. 383

Medley Lakes Outlet near Vade, Calif........................................... 384

Silver Lake Outlet near Kirkwood, Calif........................................ 385

Twin Lakes Outlet near Kirkwood, Calif......................................... 386

El Dorado Canal near Kyburz, Calif............................................. 387

Alder Creek near Whitehall, Calif.............................................. 388

Silver Creek at Union Valley, Calif............................................ 389

Silver Creek near Placerville, Calif........................................... 390

South Fork Silver Creek near Ice House, Calif.................................. 391

American River flume near Camino, Calif........................................ 392

Webber Creek near Salmon Falls, Calif.......................................... 393

Colusa and Yolo Basins........................................................... 394

Yolo bypass near Woodland, Calif............................................... 394

Clear Lake at Lakeport, Calif................................................... 395

Cache Creek near Lower Lake, Calif............................................. 396

Cache Creek near Capay, Calif.................................................. 397

Cache Creek at Yolo, Calif..................................................... 398

Kelsey Creek near Kelseyville, Calif........................................... 399

North Fork Cache Creek near Lower Lake, Calif.................................. 400

Putah Creek near Guenoe, Calif................................................. 401

Putah Creek near Winters, Calif................................................ 402

Putah Creek near Davis, Calif.................................................. 403

Napa River Basin.................................................................... 404

Napa River near St. Helena, Calif ................................................ 404

Conn Creek near St. Helena, Calif................................................ 405

Novato Creek Basin................................................................. 406

Novato Creek near Novato, Calif.................................................. 406

Petaluma Creek Basin............................................................... 407

Petaluraa Creek near Petaluma, Calif.............................................. 407

Russian River Basin................................................................. 408

Russian River near Hopland, Calif................................................ 408

Russian River near Healdsburg, Calif............................................. 409

Russian River at Guerneville, Calif.............................................. 410

East Fork Russian River near Calpella, Calif..................................... 411

Dry Creek near Cloverdale, Calif................................................. 412

Laguna de Santa Rosa near Graton, Calif.......................................... 413

Eel River Basin.................................................................... 414

Lake Plllsbury at Hullville, Calif............................................... 414

Eel River at Hullville, Calif..................................................... 415

Eel River at Van Arsdale Dam, near Potter Valley, Calif.......................... 416

Eel River at Scotia.Calif....................................................... 417

Potter Valley powerhouse tailrace near Potter Valley, Calif...................... 418

South Fork Eel River near Branscomb, Calif....................................... 419

South Fork Eel River near Miranda, Calif......................................... 420

 Van Duzen River at Bridgeville, Calif............................................ 421

KLamath River Basin................................................................ 422

Williamson River below Sprague River, near Chiloquin, Oreg....................... 422

Upper KLamath Lake near KLamath Palls, Oreg...................................... 423

Link River at KLamath Palls, Oreg................................................ 424

KLamath River at Keno, Oreg................................................... - 425
CONTENTS XI

Gaging-station records Continued.

Klamath River Basin Continued. Page

Klamath River below Pall Creek, near Copco, Calif................................ 426

Klamath River at Somesbar, Calif................................................. 427

Smaller reservoirs in Klamath River Basin........................................ 428

Sprague River near Chiloquin, Oreg............................................... 429

Cascade Canal near Fish Lake, Oreg............................................... 430

"A" Canal at Klamath Falls, Oreg................................................. 431

Keno Canal at Klamath Falls, Oreg................................................ 432

Lost River diversion canal near Olene, Oreg...............v...................... 433

Diversion from Klamath River to Lost River near Olene, Calif..................... 434

Fall Creek at Copco, Calif....................................................... 435

Beaver Creek near Lilyglen, Oreg................................................. 436

Keene Creek at Hyatt Prairie, near Ashland, Oreg................................. 437

Shasta River near Yreka, Calif................................................... 438

Scott River near Fort Jones, Calif............................................... 439

Salmon River at Somesbar, Calif.................................................. 440

Trinity River at Lewiston, Calif................................................. 441

Trinity River near Douglas City, Calif........................................... 442

Trinity River near Hoopa, Calif........................................'.......... 443

Smith River Basin.................................................................. 444

Smith River near Crescent City, Calif............................................ 444

Miscellaneous discharge measurements................................................. 445

Index................................................................................ 449

ILLUSTRATION

Figure 1. Gaging-station structures: A, Fish Creek near Duarte, Calif.; B, Sacramento River at Delta, Calif.; C, North Fork Cache Creek near Cower Lake, 

Calif.........................7.........................................

SURFACE WATER SUPPLY OP PACIFIC SLOPE BASINS IN CALIFORNIA, 1950

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, 1950. 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 12,060 gaging stations 

in the 48 States and also at many in the Territories of Alaska and Hawaii. On September 

30, 1950, 6,540 gaging stations, including those in Hawaii and Alaska 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 acknowedged in connection with the description of each station affected; cooperation of the second kind is acknowledged, under the heading "Cooperation," in the introductory matter that precedes the gaging-station records in each volume. In the present 

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

DEFINITION OF TERMS

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

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 IB used 

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

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

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

with storage for irrigation.

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

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

represents a runoff of 0.0372 inch from 1 square mile.

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

and discharge."

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

a reach of the channel, or an artificial structure.

Contents" Is a term applied to the volume of water in a reservoir. Unless otherwise 

 indicated, it is computed on the" basis of a level pool and does not include bank storage

1
SURFACE WATER SUPPLY, 1950, PART 11

"Drainage area" of a stream at a specified location is that area, measured in a horizontal plane, which is enclosed by a topographic divide such that direct surface runoff from 

precipitation normally would drain by gravity into the river basin above the specified 

point. Figures of drainage area given herein include all closed basins or non-contributing 

areas within the area unless otherwise noted.

EXPLANATION OF DATA

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

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

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

direct readings on a 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 from the base gage. At some stations 

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

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

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

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

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

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

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

stations at which the stage-discharge relation J^s 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.

B. SACRAMENTO RIVER AT DELTA, CALIF.

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

FIGURE 1. GAGING-STATION STRUCTURES.
4 SURFACE WATER SUPPLY, 1950, PART 11

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

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

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

or other special methods.

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

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

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

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

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

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

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

crest stage, obtained by use of a water-stage recorder, a crest-stage indicator, or a nonrecording gage read at the time of the crest. Information pertaining to the accuracy of 

the records and conditions which affect the natural flow at the gaging station is given 

under "Remarks."

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

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

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

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

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

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

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

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

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

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

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

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

minimum was revised; and (P) that only peak discharges were revised. If the drainage arsa 

has been revised, the report in which the revised figure was first publi&hed is given. It 

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

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

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

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

published in the annual series of reports.

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

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

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

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

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

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
ACCURACY OF FIELD DATA AND COMPUTED RESULTS 5

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

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

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

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

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

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

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

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

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

feet per second during the month.

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

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

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

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

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

by man.

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

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

but is omitted from succeeding reports.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

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

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

records.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

207481 O - 52 - 2
6 SURFACE WATER SUPPLY, 1950, PART 11

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

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

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

the station must first be satisfied.

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

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

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

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

subject to revision in succeeding water-supply papers.

PUBLICATIONS

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

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

below:

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

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

	River).

3. Ohio River Basin.

4. St. Lawrence River Basin.

5. Hudson Bay and upper Mississippi River Basins.

6. Missouri River Basin.

7. Lower Mississippi River Basin.

8. Western Gulf of Mexico basins.

9. Colorado River Basin.

10. The Great Basin.

11. Pacific slope basins in California.

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

13. Snake River Basin.

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

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

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

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

prices.

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

the United States.

3. Sets are available for consultation in the offices of the water resources 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., 644 Peachtree Seventh.

Augusta, Maine, 420 Statehouse.

Baton Rouge, La., 850 North 5th Street.

Boston, Mass., 939 Post Office Building.

Champaign, 111., 605 South Neil Street.

Charleston, W. Va., 408 Union Building.

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

Chattanooga, Term., 442 Post Office Building.

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

Columbia, S. C., 207 Creason Building.

Columbus, Ohio, .1509 Hess Street.

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 311 West Washington Street.

Jackson, Miss., Rt>om 1, Fidelity Building.

Knoxville, Term., 337 Post Office Building.

Lansing, Mien., 611 Capitol Saving & Loan Building.

Louisville, Ky., 531 Federal Building.

Madison, Wis., 666 State Office Building.

Montgomery,.Ala., 507 Post Office Building.

New Philadelphia, Ohio, Muskingum Watershed Conservancy District Building.

Ocala, Pla., Building 211, Camp Roosevelt.

Pittsburgh, Pa~., 515 Plaza Building.

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

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

Trenton, N. J., 228 Federal Building.

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

West of the Mississippi River:

Austin, Tex., 302 West Fifteenth Street.

Bismarck, M. Dak., 7 Eltinge Building.

Boise, Idaho, 429 Federal Building.

Denver, Colo., Federal Center.

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.

Juneau, Alaska, Sub Port.

Lincoln, Mebr., 510 Rudge-Guenzel Building.

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

Oklahoma City, Okla., 405 Post Office Building.

Pierre, S. Dak., 207 Federal Building.

Portland, Oreg., 606 Post Office Building.

Rolla, Mo., 211 Rarasey Building.

St'. Louis, Mo., 1004 Mew Federal Building.

Salt Lake City, Utah,'303 Federal Building.

San Francisco, Calif., 541 Federal Office Building.

Santa Fe, M. Mex., 228 United States Courthouse.

Tacoma, Wash., 207 Federal Building.

Topeka, Kans., 305 Federal Building.

Tucson, Ariz., 210 Post Office Building.

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

Geological Survey, Washington, D. C.

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

may usually be obtained from the district offices listed above.

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

listed below. In many of these reports records for years earlier than thoae Indicated 

have been included for some' streams.

Stream-flow data for the yeare 1884-1901, In reports of the Geological Survey 

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

Report

10th A, pt. 2

16th A, pt. 2

18th A, pt. 4 

V 15

W l A

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, 68.....

W 75.........

Character of data

DeseriptiTe Information only.

Descriptive Information only.

monthly discharge.

Descriptions, measurements, ratings, and monthly discharge...

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

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

Descriptions, measurements, ratings, and monthly discharge.

the Mississippi River, and Missouri River and tributaries.

the Mississippi River, except Missouri River and tributaries .

'Year

1 AQ£

1895-96. *

1897

1 AQ*7

1897.

1S9S

1 AQA

1898

1 AGQ

1 AQQ

1 OAA

1901.

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

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

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

station was maintained. For example, the data for 1910 to 1920 for any station in the 

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

453, 473, and 503, which contain records for the Ohio River Basin for those years.
-Numbers of water-supply papers cont

Year

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

1900 g. .................

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

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

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

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

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

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

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

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

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

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

-I QOQ

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

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

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

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

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

i94i..... :..............

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

1946. ...................

.1950. ...................

1

35

47, h48 

65, 75 

82 

97

0165, p!86, q!67 

0201, p202, q203 

241 

261

281 

301 

321 

351 

381

401 

431 

451 

471 

501

521

541 

561 

581 

601

621 

641 

661 

681 

696

711 

726 

741 

756 

781

801 

821

Si1

871 

891 '921

951 

971 

1001 

1031-

1051 

1081 

1111 

1141

1171

1)35, 36

48 

65, 75 

b82, 83 

b97, 98

q!67, 168 

q203, 204 

242 

262

282 

302 

322 

352 

382

432 

452 

472 

502

522 

542 

562 

583 

602

622 

642 

662 

682 

697

712 

727 

742 

757 

782

822 

852 

872 

892

1 9S2 

952 

972 

1002 

1032

1052 

1082 

1112 

1142

1172

3

3B 

48, 149 

65, 75 

83 

98

169 

205 

243 

263

283 

303 

323 

353 

383

463 

433 

453 

473 

503

523

543 

563 

583 

603

623 

643 

663 

683 

698

713 

728 

743 

758

isi 803 

823 

853 

873 

893

923 

953 

973 

1003 

1033

1O53 

1083 

1113 

1143

1173

4 3s"

49 

65, 75 

m82, 83 

97

170 

206 

244 

264

284 

304 

324 

354 

384

4O4

434 

454 

474 

504

524 

544 

5.64 

584 

604

624 

644 

664 

684 

699

714 

729 

- 744 

759 

784

8O4 

824 

854 

874 

894 ., ggr

954 

974 

1004' 

1034

1O54 

1084 1114" 

1144

1174

jiinlng results of stream measurements, .1

5 se

49 

k65, 66, 75 

k83, 85 

k98, 99, nlOO

171 

207 

245 

265

265 

305 

325 

355 

385

4O5 

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 

1115 

1145

1175

6

e36, 37 

49, J50 

66, 75 

84 

99

172 

208 

246 

266

286 

306 

326 

356 

386

406 

436 

456 

476 

506

526 

546 

566 

586 

606

626 

646 

666 

686 

701

716 

731 

746 

761 

786

806 

826 

856 

876 

896

926 

956 

976 

1006 

1036

1056 

1086 

1116 

1146

1176

71 "-sr

50 

k65, 66, 75 

k83, 84 

k98, 99

k!69, 173 

k205, 209 

247 

267

287 

307 

327 

357 

387

407 

437 

457 

477 

507

527 

547 

567 

587 

607

627 

647 

667 

687 

702

717 

732 

747 

762 

787

807 

827 

857 

877 

897 _....,... . ..g??

957 

977 

1007 

1037

1057 

1087 

1117 

1147

1177

a Rating tables and index to WSP 35-39

contained In WSP 39. Monthly discharge f 

for 1899 In.21st Annual Report, part 4. g

b James River only.

c Gallaljln River.

d Green and Gunnison Rivers and Colorado h 

Rivef above Gunnison River. 1

Mojave River only.

Kings and Kern Rivers and south Pacific si

Rating tables and index to WSP 47-52 

contained in WSP 52. Monthly discharge 

for 1900 in 22d Annual Report, part 4.

Schuylkill River to James River,

Scioto River.

J Loup, Platte, and El

tributaries below P

k Tributaries of Missi

m Lake Ontario and tri

Lawrence River prop

n Hudson Bay only.

o New England rivers o
PUBLICATIONS

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

years. Miscellaneous measurements at many points other than regular gaging stations have 

been made each year and are published under "Miscellaneous discharge measurements" at the 

end of each report, the streams and points of measurement listed appearing in the same 

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

the records obtained prior to 1904 has been published in Water-Supply Paper 119.

Each of -the reports on surface water supply for the 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.

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

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

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

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

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

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

Report 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- 1337-1912

mento River Basin. 

California, Water resources of, part Z, stream measurements In San 1873-1912

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 watar supply of Sacramento River Basin....... ........ 1S95-1927

California, surface water supply of San Joaquln River Basin...... ........ 1895-1927

California, southern. Surface water aupply 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 .............................................. 1395-1905

Massachusetts, Surface waters of......................................... 1846-1915

Massachusetts, Hydrology of, Part 1, Sumnary of stream-flow and precipi- 1863-1945

tatlon records. 

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

Oregon, Surface water supply of .......................................... 1873-1910

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

Vermont, Surface waters of............................. ................... 1875-1918

Washington, Summary of hydrometrlc 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 BASIH

Colorado River (Arlz., Colo., H. Mex., Utah, Wyo.) and Its utilisation... 1868-1914 

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., Hev., H. 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........ .............. 1894-1928

Kennebec River Basin (Maine), Water resources of ......................... 1890-1906

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

Missouri and St. Mary River Basins (Mont.), Surface waters of ............ 1831-1938

Hew-Kanawha River Basin (H. C., Ta., W. Va.), Surface water eupply of.... 1895-1920

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

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

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

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

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

River Baa in. 

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

Susquehanna River Basin (Pa., Md.) Hydrography of ........................ 1890-19O4

107

293

300

447

597-E

S36-D

636-E

637-A

74

197

415

1105

230 

370 

350 

424 

492 

870 

15S 

469

395

617

918

916

517

618

198

917

536

279

192

358

491

920

109

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

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

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

these reports.
10 SURFACE WATER SUPPLY, 1950, PART 11 

State reports containing compilations of records of discharge

State

Do.........

Colorado. .....

Connecticut...

Do.........

Louisiana.....

Minnesota..... 

Mississippi. .

Nebraska......

Hew Hampshire. 

Hew Jersey....

Hew Mexico. . . . 

North Carolina

Horth Dakota.. 

Do.........

Do.........

Period

1904-47

1857-1928

903-46

1891-1935 

1881-1938

1900-1927

1912-33 

1898-1946 

1895-1906 

1907-19 

1908-11 

1900-1934 

1923-27 

1927-30 

1873-1932 

1873-1940

1941-42 

1895-1919

1924-28 

1928-35 

1935-39 

1910-20 

1903-38

1887-1920 

1929-37

1892-1943

1931-48 

1909-12

1900-1948 

1857-1926

1927-39

1889-1911 

1861-1936

1894-1914

1914-28 

1889-1922 

1892-1928

1928-34 

1934-40

1888-1925 

1889-1923

1889-1936

1866-1945 

1820-1945

1866-1945 

1872-1945 

1857-1945 

1919-21

1882-1938 

1882-1944

1898-1921

1898-1944 

1902-39

1898-1939 

1878-1914 

1914-24 

1924-30

Report

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

Water resources of Colorado, Appendix 2, 

Data on stream-gaging stations of 

Colorado.! 

Water resources of Colorado, Appendix 3, 

vols. 1 and 2, Stream-flow data of 

Colorado. 

Bull. 44, Water resources of Connecticut...

Water-Supply Bull. 1, Summaries of yearly 

and flood flow relating to < Iowa streams.. 

Water-Supply Bull. 2, Surface water 

resources of Iowa.

fteport of Division of Water Resources ......

Oeol. Bull. 16, Surface water supply of 

Louisiana.

Flow data and draft storage curves (or 

major streams In Maryland. 

Bull. 1, Summary of records of surface 

waters of Maryland and the Potomac 

River Basin. 

Bull. 5, Anne Arundel County Water Resources 

Water-resources' Investigation of Minnesota. 

Bull. 68, Surface Waters of Mississippi.... 

Vol. 20, 2d series, Water resources of 

Missouri. 

Vol. 26, 2d series, Surface waters of 

Missouri.

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

1st hydrographle report .""". " "

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

Bull. 33, Surface water supply of Hew 

 Jersey . 

Special Rept. 5, Surface water supply of 

Hew Jersey. 

Special Rept. 9, Surface water supply of 

Hew Jersey.

Bull. 34, Discharge records of Horth 

Carolina streams.. 

Bull. 39, Discharge records of Horth 

Carolina streams. ' 

Hydrologic Data on the Reuse River Basin. 

Hydrologic Data on the Cape Fear River 

Basin. Hydrologie Data on the Yadkin-Pee Dee River 

Basin. Hydrologic Data on the Catawba and Broad 

River Basins. 

Hydraulic Data on The French Broad River 

Basin. 

Report to Governor of North Dakota on 

flood control.

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

Bull. 200, Compilation of stream-flow 

records of Ohio.

Bull. Ill, Ohio stream-drainage areas and 

flow-duration tables. 

Bull. 4, Water resources of the State of 

Oregon. 

Bull. 7, Water resources of the State of 

Oregon. Bull. 8, Water resources of the State of 

Oregon.

Issued by

Geological Survey of Alabama. 

Do

irkansaa Geological Surrey. 

Arkansas Resources and Development Commission; 

University of Arkansas, 

Institute of Science and 

Technology. . 

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. 

livers and Lakes Commission. 

)1 vis ion of Waterways. 

Department of Conservation. 

Do. 

State Planning Board, 

[owa Geological Survey.

Do.

Kansas Water Commission. 

Do. 

State Board of Agriculture. 

Do. 

Do. 

Kentucky Geological Survey. 

Department of Conservation.

Maine Water Power Commission. 

State Planning Commission and 

Water Resources Commission. 

Department of Geology, Mines, 

and Water Resources.

Do. 

State Drainage Commission.

Misslseippl Geological Survey. 

Missouri Bureau of Geology 

and Mines. 

Missouri Geological Survey 

and Water Resources. 

Office of the State Engineer. 

Montana Agricultural Experiment Station. 

Bureau of Water Power, Irrigation, and Drainage. 

Do. 

Public Service commission. 

Department of Conservation 

and Development. 

State Water Policy Connlflslon.

Do.

Office of the State Engineer. 

Department of Conservation 

and Development.

Do. 

Do. 

Do.

Do. 

Do. 

Do. 

State chief engineer.

State Planning Board. 

State Water Conservation 

Commission. Engineering Experiment Station, 

Ohio State university. 

Do. 

Department of Agriculture, 

Division of Conservation 

and Natural Resources. 

Engineering Experfnant Station, 

Ohio State ttolwrslty. 

Office of the State Engineer.

Do. 

Do.

1 Contains records of yearly discharge only.

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

discharge.
PUBLICATIONS 

State -reports containing compilations of records of discharges-Continued

11

State

Oregon. . ......

Pennsylvania. .

South Carolina

Do......... 

Utah..........

Do.........

Virginia......

Washington ....

Period

1930-36

1890-1911

1684-1946

1920-30 

1889-1905

1911-16 

1895-1927

1878-1933

Report

Ball. 9, Water resources of the State of 

Oregon.

Oregon. 

Report of the Water Supply Commission of 

Pennsylvania .

Bull. 17, Summary of records of surface 

water supply of South Carolina.

Bull. 31, Water resources of Virginia......

(Potomac, Rappahannook, and York River 

Basins).

(James River Basin).

(Roanoke and Chowan River Basins).

(Hew, Tennessee, and Big Sandy River 

Basins). 

Bull. 5, Monthly and yearly summaries of 

hydrometrlc data. 

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

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

Issued by

Office of the State Engineer.

Water Supply Commission of 

Pennsylvania. 

Department of Forests and

Waters.

South Carolina Research, 

Planning and Development 

Board. 

Department of Education.

Do. 

Office of the State Engineer. 

Do.

Do. 

Virginia Geological Survey. 

Virginia Conservation Commission. 

Do.

Do.

Do.

Department of Conservation 

and Development. 

Railroad Commission of Wisconsin. 

Do.

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

Hote.- 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, Hebraska, Jerada,Mew 

Mexico, Hew York (also Hew York City Board of Water Supply and city of Rochester), Hortai Daicota, 

Oregon, Pennsylvania, Rhode Island, South Dakota, Washington, and Wyoming. ,__

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

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

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

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

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

Water-Supply Tltle 

Paper

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.

520-0 Some floods in the Rosky Mountain region.

636-C The New England flood of November 1927.

771 Floods in the United States, magnitude and frequency.

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

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

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

796-G Major Texas floods of 1935.

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

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

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

816 Major Texas floods of 1936. 836-A Stages and flood discharges of the Connecticut River at Hartford, Conn.

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

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

843 Floods of December 1937 in northern California.

844 Floods of March 1938 in southern California.

847 Maximum discharges at stream-measurement stations through September 19JB.

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 August 1940 in the southeastern States.

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

1134-A Floods of August 4-5, 1943 in Central West Virginia.

1134-B Floods of July 18, 1942 in North Central Pennsylvania.

1137-A Missouri River Basin Floods of April-May 1950 in North and South Dakota.
12 SURFACE WATER SUPPLY, 1950, PART 11

RECORDS OP 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 yeai- October 1949 to September 

1950 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 Duarte tunnel 

diversion.

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

Batavia storm drain. .... 

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

Beryl Ave. storm drain..

Calabasas Creek. ........

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

V

Chino Creek. ............ 

City Creek, old channel.

Clear Lake Reservoir 

(elevation and discharge) .

Colton southwest storm 

drain. 

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

Cucamonga Creek. ........ 

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

Del Rosa Creek. .........

Domlnguez Channel ....... 

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

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

Dry Creek Reservoir 

(Big Dry Outlet)

Location

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

Short St., Wilmar, calif .............

Nordhoff St., near Northridge, Calif.

Calif.

Mouth of San Gabriel Canyon near 

Azusa, Calif.

Calif. 

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

Calif.

Calif. 

Parker St., north of Santiago Creek, 

near Orange, Calif. 

SE-J- sec. 7, T. 38 S., R. 20 E., just 

downstream from Cox Creek, near 

Lakeview, Oreg. 

19th St. and Beryl Ave., near Alta 

Loma, Calif.

Calif.

Ventura Blvd., near West Los Angeles, 

Calif. 

Ramona Ave., near Chino, Calif.......

Calif.

Springs, Calif.

Riverside Drive, near Chino, Calif...

Church Ave., near East Highlands, 

Calif. 

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

Colton Ave., south of Colton, Calif.. 

Greenleaf St. , Compton, Calif. .......

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

Merrill Ave., south of Ontario, 

Calif. 

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

Calif.

Mira Loma, Calif. 

Pacific Ave., near San Bernardino, 

Calif.

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

Ftosecrans Ave., near Gardena, Calif..

SWi'sec. 16, T. 41 S., R. 18 E., 18 

miles southwest of Lakeview, Oreg. . 

4 miles northeast of clovis, Calif...

Period

1937-50 

1929-50 

1939-50

1918-50

1943-50

19 4O 5O

1935-50 

1945-50

1947-50

1940-50 

1942-50 

1945 50

1942-50 

1947-50 

1919-50t

1942-50 

1928-5O

1947-50 

1947-50

1947-50

1938-50

1942-50 

1946 50

1945-5O 

1949-50

Collected by

grange County Flood 

Control District. 

Los Angeles County Flood 

Control District. 

Do.

Do.

Do.

Orange County Flood control District. 

Oregon State engineer.

San Bernadlno County 

Flood Control District.

Control District.

Flood Control District.

Los Angeles County Flood 

Control District. 

San Bernardino County 

Flood Control District.

Control District.

gations, Corps of Engineers and U. S. weather 

Bureau. 

San Bernardino County 

Flood Control District. 

Do.

Bureau of Reclamation..

San Bernardino County 

Flood Control District. 

Los Angeles County Flood 

Control District.

San Bernardino County 

Flood Control District. 

Do.

Control District.

Flood Control District. 

Do.

Los Angeles County Flood 

Control District. 

Do.

Oregon State engineer. 

Fresno Irrigation District

t Monthly discharge 1919-24; daily discharge 1924-50.

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

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

Records of discharge collected by agencies other than the Geological Surveys-Continued

Stream

(Little Dry Outlet) . 

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

East Etiwanda Creek. .... 

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

Pullerton relief channel

Gerber Reservoir (elevation and discharge) . 

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

Laguna Dominguez. .......

La Veta Ave. storm drain 

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

Little Sand Creek. ...... 

Little Santa Anita Creek 

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

Los Angeles River. ...... 

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

Los Cerritos Channel....

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

Macey debris basin. ..... 

Mariposa Reservoir. .....

Mission ditch......'.....

Monrovia storm drain....

Paeoima Wash.. .......... 

Peters Canyon Wash. .....

Potato Creek. '...........

Reche Canyon Creek. .....

Rialto Baseline storm 

drain.

San Antonio Creek. ...... 

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

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

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

San Jacinto River. ......

Location

At bridge on Roosevelt Highway, Calif.

Pacific Electric Railroad bridge near 

Etiwanda, Calif. 

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

Pasadena, Calif. 

Brighton Way west of Magnolia Ave., 

Pullerton, Calif. 

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

Lorella, Oreg. 

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

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

Harbor Blvd. , near Torrance, Calif. . .

Roscoe, calif. 

La Veta Ave., east of Santiago Creek, 

southeast of Orange, Calif.

Calif. 

Hear Del Rosa, Calif. ................

270 feet below Sierra Madre Dam at 

Sierra Madre, Calif. 

Woodlawn Ave., near Sierra Madre, 

Calif.

La Verne, Calif. 

Below Sepulveda Dam, Calif. .......... 

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

Above Araheim St. near Long Beach, 

Calif.

R. lli E., 4 miles southwest of 

Bonanza, Oreg.

Dam), SEiSWi see. 29, T. 39 S. , R. 

10 E.

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

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

Merrill, Oreg. 

Cojon Blvd., near San Bernardino, 

Calif. 

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

Tippecanoe Ave., near Loma Linda, 

Calif.

near Monrovia, Calif. 

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

Parthenia St., near Van Nuys, Calif.. 

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

Calif. 

Bryant St., near Yueaipa, Calif...... 

mas, Calif. 

Pigeon Pass Road, near Loma Linda, 

Calif. 

Baseline Ave., near San Bernardino, 

Calif.

El Monte, Calif.

Mouth of canyon, near Claremont, 

Calif.

Springs, Calif.

near San Dimas, Calif.

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

Florence St., near Santa Pe Springs, 

Calif. 

Bridge Street near Lakeview, Calif...

Calif.

Pontana, Calif.

Period

1930-50 

1947-50 

1930-50

1941-50 

1926-50 

1947-50 

1923 50

1942-50

1936-50

1947-50 

1929-50 

1938-50

1929-50* 

1938-50 

1942-50

1947-50

1948-50tt 

1948-50

1942-50

1932-50

1928-50 

1930-50

1947-50

1947-50 

1942-50 

1932 50

1928 50

1931-50

1949 SO

1937-50 

1934-50

1949-50 

1949-50

1947-5O

Collected by

trict. 

Los Angeles County Flood 

Control District. 

San Bernardino County 

Flood Control District. 

Loa Angeles County Flood 

Control District.

Orange County Flood 

Control District. 

Bureau of Reclamation.

San Bernardino County 

Flood Control District.

Los Angeles County Flood 

Control District.

Orange County Flood Control District.

Control District. 

San Bernardino County 

Flood Control District. 

Los Angeles County 

Flood Control District. 

Do.

Do. 

Do.

Do.

San Bernardino County 

Flood Control District. 

Corps of Engineers. -

San Bernardino County 

Flood Control District.

Control District. 

Do.

Los Angeles County Flood 

Control District. 

Orange County Flood Control District.

Control District. 

San Bernardino County 

Flood Control District.

Control District. 

San Bernardino County 

Flood Control District. 

Do.

Control District.

Do.

Flood Control District.

Survey.

Control District.

Do. 

Do.

Riverside County Flood 

Control District.

Flood Control District.

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

tt Records of outflow.
14 SURFACE WATER SUPPLY, 1949, PART 11

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

Stream

Sycamore Canyon channel 

.(formerly upper storm 

drain) .

(formerly lower storm 

drain) .

Thompson Creek spreading 

ground intake . 

Timber Creek. ...........

Towne Creek. ............

branch.

Villa park storm drain. . 

Walnut Ave. storm drain. 

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

Warm Creek. .............

West Anahelm storm drain

West Pork San Gabriel 

River.

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

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

Location

Calif.

Arcadia, Calif.

county line, near Piru, Calif.

Montalvo, Calif.

Calif.

Above Solway St., Glendale, Calif....

NWt sec. ZZ, T. 38 S., R. 19 E., Just 

upstream from Barnes 'spring, 8 

miles northwest of Lakevlew, Oreg.

mont, Calif. 

Thompson Creek Dam near Claremont, 

Calif. 

Waterman Ave., near San Bernardino, 

Calif. . 

Mountain view Ave., near San Bernardino, Calif.

Sunland, Calif.

Calif.

Center Dr. at Lincoln St., near Villa 

Park, Calif. 

Walnut Ave., at Prospect Ave., east 

of Orange, Calif. 

Govina Blvd., at Baldwin Park, Calif.

Sterling Ave., near San Bernardino, 

Calif.

Manchester Blvd., west of Anaheim, 

Calif. 

Half a mile below San Gabriel dam 2, 

Calif.

Old Highway 99, near Yucaipa, Calif. .

Period

1938-50

1949-50

1937-50

1945-50

1940-50 

1945-50 

1943-50

1936-50 

1928-50 

1926-50 

1946-50

1936-50 

1934-50

1947-50 

1942 50

1947-50

Collected by

trol District.

Control District. 

IX)

Survey.

Control District.

Control District. 

Do.

Oregon State engineer.

Control District. 

IX>.

San Bernardino County 

Flood Control District. 

Do.

Control District.

Flood Control District.

Control District. 

Orange County Flood Control District. 

IX).

Los Angeles County Flood 

Control District. 

San Bernardino County 

Flood Control District.

Orange County Flood Control District. 

Los Angeles County Flood 

Control District.

San Bernardino County 

Flood Control District.

Do.

COOPERATION

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

of Public Works, C. H. Purcell, director, and Edward Hyatt, State engineer; San Bernardino 

County; Calaveras County Water District; Orange County Flood Control District; San Luis 

Obispo County Flood Control and Water Conservation District; and City of Santa Barbara and 

Santa Barbara County Water Agency. In Oregon the work was done under cooperative agreement with the State of Oregon, C. E. Stricklin, State engineer.

Financial assistance was furnished by the Corps of Engineers for the operation of 38 

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

Interior for the maintenance of 60 gaging stations, and by the Bureau of Indian Affairs, 

United States Department of the Interior for the operation of one gaging station. The 

entire expense of the investigation of stream flow in the Tuolumne River Basin made for 

the'iHetch Hetchy project and of the flow of Alameda Creek near Niles was borne by the 

city and County of San Francisco.
DIVISION OF WORK. 15

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

California, by The California Oregon Power Co., Southern California Edison Co., Pacific 

Gas & Electric Co., and Merced, Modesto, Table Mountain, Thermalito, Turlock, Oakdale, 

South San Joaquin and Woodbridge 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 

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), R. C. Briggs; in Oregon and for Fall Creek 

and Klamath River near Copco, Calif., K. N. Phillips. The work in Oregon was done in 

collaboration with C. E. Strieklin, State engineer.

The records were reviewed and the manuscript prepared for publication under the direction of B. J. Peterson, chief, annual reports section.
16 GAGING-STATION RECORDS

TIA JUANA RIVER BASIN 

Cottonwood Creek above Teoate Creek, near Dulzura, Calif.

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

RT~2~E., 0.5 mile upstream from confluence with Tecate Creek and 5.5 miles south of 

Dulzura. Datum of gage is 569.40 feet above mean sea level (levels by International 

Boundary and Water Commission).

Drainage area.--316 square miles.

Records available.--October 1936 to September 1950.

Average discharge.--14 years, 14.5 second-feet.

Extremes. Maximum discharge during year, 3.5 second-feet Mar. 25 (gage height, 1.56 feet); 

no now during most of year.

1936-50: 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. 19).

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

30

31 

32 

23 

34 

35

26 

27 

38 

39 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.5 

1.0 

.4

Feb.

0.3 

.2 

.2 

.2 

.2

.2 

1.1 

.6 

.5 

.6

1.3 

1.3 

1.1 

.9 

.7

.5 

.5 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.2

.2 

.3 

.3

Month

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

Ma v

June 

July 

Augu 

Sept

Wa

lendar year 194S 

at*y

.......................

ter year 1949-50 ..................'.....

Mar.

0.2 

.3 

,3 

.3 

.2

.2 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

0

.1

.1 

.1 

0 

0

0 

0 

0 

0 

2.1

1.6 

1.1 

.8 

.5 

.2 

.1

Apr.

0.1 

0 

0 

0 

0

0 

0 

0 

.2 

.3

.1 

0 

0 

0 

0

0 

0 

0 

0 

0

o0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

0 

0 

0

504.4

1.9 

13.7 

9.1 

.7 

0 

0 

0 

0 

0

25.4

May

Maximum

0 

0 

0

50

1.0 

1.3 

3.1 

.3 

0 

0 

0 

0 

0

2.1

June July

Minimum

0 

0 

0

0

0 

.2 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

1.38

.06 

.49 

.39 

.03 

0 

0 

0 

0 

0

; .07

Sept.

Runoff In 

acre-feet

0 

0 

0

1,000

3.8 

37 

18 

1.4 

0 

0 

0

0

50
TIA JUANA RIVER BASIN 17

Tia Juana River near Dulzura, Calif.

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

TTE,, 0.5 mile downstream from confluence of Cottonwood and Tecate Creeks and 5.5 miles 

south of Dulzura. Datum of gage is 542.42 feet above mean sea level (levels by International Boundary and Water Commission).

Drainage area.--478 square miles, of which 62 square miles are in Mexico. 

Records available.--October 1936 to September 1950. 

Average discharge.--14 years, 23.5 second-feet.

Extremes.--Maximum discharge during year, 1.7 second-feet Mar. 25 (gage height, 2.52 feet); 

no flow during several periods.

1936-50: Maximum discharge, 4,700 second-feet Feb. 7, 1937 (gage height, 8.50 feet, 

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

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

creek.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

o

0 

0

0 

0

 e.02

f e.05 

.1

e.07 

, e.02

Jan.

eO.03

.1 

f e.08

.1

^ e.08

e.05

.4 

.3

.2

Feb.

O.2 

a. 2 

.2 

.2 

.1

.2 

.3

.2 

.1 

.2

.6 

.7 

.7 

.6 

.4

.4 

.4 

.4 

.3 

.3

.3 

.3 

.3

.2 

.2

.2 

.2 

.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

h. ......................................

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

ter year 1949-5O .......................

Mar,

O.2 

.2 

.3 

.2 

.2

.2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

y e.08 

.6

1.2 

.7 

.4 

.2 

.2 

.1

Apr.

0.1 

e.08

.1 

.2

e.08 

e.02

e.Ol

0 

0 

0 

0

Secondfoot-days

O

0 

.80

807.14

2.33 

8.6

6.44 

1.52 

.44 

.20 

0 

0 

0

20.33

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o

0 

. e.Ol

, e.02 

e.05 

e.02

Maximum

0 

0 

.1

46

.4 

.7 

1.2 

.2

0 

0 

0

1.2

June

o 

o'oooooooi

o>

July

Minimum

0 

0 

0

0

.1

0 

0 

0 

.0 

0 

0

0

Aug.

Mean

O 

0 

.026

2.21

.075 

.31 

.208 

.051 

.014 

.007 

0 

0 

0

.056

Sept.

Hunoff In 

acre-feet

0 

O 

1.6

1,600

4.6 

17 

13 

3.0 

.9 

.4 

0 

O 

0

40

a No gage-height record; discharge computed on basis of recorded range In stage, 

e Dally,discharge less 'than o.l see.-ft.
18 TIA JUANA RIVER BASIN

Tia Juana River near Nestor, Calif.

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

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 are in Mexico. 

Records available.--October 1914 to September 1915, October 1936 to September 1950. 

Average discharge.--15 years (1914-15, 1936-50), 71.9 second-feet.

Extremes. Maximum daily discharge during year, 11 second-feet Feb. 7; no flow most of year. 

 1936-50: Maximum discharge, 17,700 second-feet Feb. 7, 19§7 (gage height, 8.20 feet),

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

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

Remarks. Records fair. Flow regulated by Morena and Barrett Reservoirs, operated by city 

or San Diego, and by Rodriguez Reservoir, operated by Government of Mexico.

Day

1 

Z

3

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Discharge, in second-feet, water year October 1949 to September 1950

Oct. Nov. Dee. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

.1

2.0

.5

Feb.

0 

0 

0 

2.1 

4.1

4.1 

11 

7.7 

4.4 

3.5

6.0 

3.5 

a3.4 

33.3 

33.0

2.4

1.7 

1.4 

1.7 

1.8

1.6 

1.4 

1.0 

.6 

.4

.4

.9 

.6

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Apri 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

0.5 

.7 

.6 

.3 

.3

.1 

O 

O 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0

Apr.

Secondfoot-days

0 

0 

0

2,662.8

2.6 

71.9 

2.5 

0 

0 

0 

0 

0 

0

77.0

May

Maximum

0 

0

O

1,140

2.0 

11 

.7 

0 

0 

0 

0 

0 

0

11

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

7.30

.08 

2.57 

.08 

0 

0 

0 

0 

0 

0

.21

Sept.

Runoff in 

acre-feet

0 

0 

0

5,260

5.2 

143 

5.0 

0 

0 

0 

0 

0 

0

153

a No gage-height record; discharge interpolated.
TIA JUANA RIVER BASIN 19

Dulzura conduit near Dulzura, Calif.

Location. Water-stage recorder and Cippoletti weir, lat. 32°37'05", long. 116 0 45'50", in 

SWt sec. 10, T. 18 S., R. 2 E., 0.1 mile south of State Highway 94 and 2.3 miles east 

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

Records available.--January 1909 to September 1915, May 1940 to September 1950. 

Average discharge. 16 years (1909-15, 1940-50), 16.9 second-feet.

Extremes.--Maximum daily discharge during year, 31 second-feet Feb. 11, 12; no flow during 

most of year.

1909-15, 1940-50: Maximum daily discharge, 65 second-feet Feb. 4, 1911; no flow for 

periods each year.

Remarks. - -Records good. Conduit diverts from Cottonwood Creek at Barrett Dam in NVf£ sec. 

si a, T. 17 S., R. 3 E.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov. Dec. Jan.

0 

O 

0 

0 

0

0

o

0

.1

0 

0

.1

0 

0 

0

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

6.7 

8.8 

29 

29 

29

31 

31 

28 

26 

25

24 

23 

20 

15 

12

9.0 

7.6 

6.3 

5.3 

4.4

4.0 

3.8 

3.6

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

Mnv

June 

July 

Augu 

Sept

Ma

lendar year 1949

ter year 1949-50 .......................

Har.

3.4 

3.4 

3.0 

2.8 

2.8

2.6 

2.2 

2.1 

2.1 

1.9

1.9 

1.7 

1.4 

1.7 

1.7

1.6 

.4 

.6 

0 

.3

2.2 

2.4 

5.3 

8.7 

4.3

.3 

1.6 

17 

19 

15 

12

Apr.

9.8 

8.1 

6.6 

6.1 

4.9

4.4 

3.8 

3.2 

3.6 

3.6

3.6 

3.4 

3.0 

.3 

0

0 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

0 

0 

0

1,893.1

.2 

381.5 

125.4 

64.4 

0 

0 

0 

.8 

0

57Z.3

May

Maximum

0 

0 

0

42

.1 

31 

19 

9.8 

0 

0 

0 

.8 

0

31

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 - b

0

0

Aug.

O 

0 

0 

O 

0

0 

0 

0 

0 

.8

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0 

0 

0

5.19

.01 

13.6 

4.05 

2.15 

0 

0 

0 

.03 

0

1.57

Sept.

Runoff in 

acre-feet

0 

0

0

3,750

.4 

757 

249 

129 

0 

0 

0 

1.6 

0

1,140
20 TIA JUANA RIVER BASIN

Campo Creek near Campo, Calif.

Location. Water-stage recorder and broad-crested weir, lat. 32°35'20", long. 116°31'35", 

 in sec. 24, T. 18 S., R. 4 E., just downstream from bridge on State Highway 94, about 

3.5 miles southwest of Campo. Altitude of gage, about 2,180 feet.

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

Records available. October 1936 to September 1950. 

Average discharge.--14 years, 4.40 second-feet.

Extremes.--Maximum discharge during year, 1.5 second-feet Mar. 25 (gage height, 0.44 foot); 

no now during most of year.

1936-50: 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 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

O 

O 

O 

O

o

o 

o 

o 

o

0

o 

o

0

o 

o

0

o 

o

.01

o

o 

o 

o 

o 

o

o 

o 

o 

o 

o 

o

Nov.

O 

O 

O 

O

o

o 

o 

o 

o 

.02

o 

o 

o 

o 

o

o 

o 

o

0

o

o 

o 

o

o 

o

o 

o 

o

0

o

Dec.

o 

o

0

o

0

0 

0 

.02 

0

o

o 

o 

o 

o

0

o

0 

0 

.01

o

o 

o 

o 

o 

o

o 

o 

o 

o 

o 

o

Jan.

o 

o 

o

e.O3 

.2

.1 

.1

.4 

.2 

.3 

.3

.2 

.2 

.2 

.2 

.1

.1

.1

.1 

.1 

.1

.1 

.1 

.1 

.4 

.2 

.2

Feb.

O.2 

.2 

.2 

.2 

.2

.3 

.4 

.2 

.2 

.2

.3 

.2 

.2 

.2 

.2

.2 

.2

.1 

.1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-5O .......................

Mar.

0.1

.1 

.1 

.1 

.1

.1

!i .1

.1.1 .1 .1 .1

.1 .1.1 

a

.1

\ e.09

.1 

.4

.2 

.2 

.2 

.1 

.1 

.1

Apr.

0.1 

.1 

.1

L .09

!i

.2 

.1

e.09 

e.06

Secondfoot -days

O.O1 

.02 

.03

71.26

4.25 

4.9 

3.67 

2.46 

1.14 

.08 

O 

O 

O

16.56

May

^ eO.O6 

^ e.09

e.03

e.O5 

» e.02

Maximum

o.ol 

.02 

.02

4.6

.4 

.4 

.4 

.2

O

0

o

.4

June

0

OOOOOI OOOOO OO

July Aug. '

Minimum Mean

O O.O003 

O .OO1 

O .OO1

0 .195

O .137 

.1 .18 

.118 

,082 

.037 

0 .003 

O O 

0 0 

O O

0 .045

Sept.

Runoff in 

acre-feet

O.O2 

.04 

.06

141

8.4 

9.7 

7.3 

4.9 

2.3 

.2 

0 

0 

O

33

Peak discharge (base, 2O, sec. -ft. J. No peak above base.

e Dally discharge less than O.I sec. -ft.
OTAY RIVER BASIN 

Jamul Creek near Jamul, Calif.

21

Location.--Water-stage recorder and broad-crested weir with 5-foot venturi flufte 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.--Apr11 1940 to September 1950.

Extremes.--Maximum discharge during year, 30 second-feet Feb. 11 (gage height, 1.16 feet); 

no now during several periods.

1940-50: Maximum discharge, about 4,000 second-feet Dec. 1, 1947 (gage height, 5.42 

feet); no flow July 16 to Sept. 30, 1949.

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

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. 19).

Discharge, in second-feet, water year October 1949 to September 195O

Gay

1 

Z 

3 

4 

5

6 

7

a

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

£0

21 

£2 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

O 

0 

O

0 

O 

0 

0 

.06

.1 

.1 

.03

, a. 01 

. a. 02

Dec.

,a0.02

.4 

.4

.2 

.2 

.1

.1 

.1

a.l 

a.l 

.1 

.2 

.2 

.2

Jan.

0.2 

.2 

.3 

.2 

.2

.2 

.2 

.4 

.9 

.3

.3 

1.2 

.9 

.6 

1.0

.6 

.5 

> .4 

.4 

.4

.3 

.3 

.3 

.4 

.3

.3 

.3 

.3 

2.1 

1.1 

.6

Feb.

0.5. 

.5 

.4

.3 

.3

.7 

3.9 

15 

24 

25

28 

29 

26 

24 

23

22 

21 

20 

16 

12

10 

7.8 

6.2 

5.4 

4.7

4.3

4.1 

3.7

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

tier. ....................................

lendar year 1949

ter year 1949-50 .......................

Mar.

3.7 

3.7 

3.4 

3.2 

3.0

2.8 

2.6 

2.3 

2.1 

2.0

2.0 

1.7 

1.7 

1.5 

1.5

1.5 

1.5 

1.2 

.9 

.7

.6 

.5

1.4 

5.0 

10

2.8

1.8 

6.8 

18 

15

13

Apr.

11 

9.2 

7.6 

6.4 

5.6

4.9 

4.5 

4.1 

3.9 

3.5

3.5 

3.4 

3.4 

2.8

1.7

1.1 

.9 

.7 

.6 

.6

.6 

.5 

.5 

.4

;l;>s

Secondfoot-days

0 

.52 

2.76

2,805.48

15.7 

337.8 

117.9 

84.1 

6.2 

.54 

0 

0 

0

565.52

May

0.3 

.3 

.4 

.4

.2

.2 

.2 

.2 

.2 

.2

.2 

.2

a. 2 

a.l

Maximum

0 

.1 

.4

81

2.1 

29 

18 

11 

.4

0 

0 

0

29

June

, aO.03

0 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

July

Minimum

0 

0

0

.2 

.3

:!

0 

0 

0 

0

0

Aug.

Mean

0 

.017 

.089

7.69

.51 

12.1 

3.80 

2.80 

.20 

.018 

0 

0 

0

1.55

Sept.

Runoff in 

acre-feet

O 

1.0 

5.5

5,560

31 

670 

234 

167 

12 

1.1 

0 

0 

0

1,120

a No gage-height record; discharge computed on basis of 4 discharge measurements t 1 observation of 

no flow, and interpolation.

207481 O- 52 - 3
22 SAN DIEGO RIVER BASIN

San Diego River near Santee, Calif.

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

117°03'25", in the Ex Mission San Diego Grant, in Mission Gorge, 6 miles west of Santee, 

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

Drainage area.--380 square miles.

Records available.--May 1912 to September 1950 (incomplete prior to 1920).

Average discharge.--35 years (1912-15, 1917-19, 1920-50), 33.3 second-feet.

Extremes.--Maximum discharge during year, 18 second-feet Feb. 7 (gage height, 0.53 foot); 

practically no flow during several months.

1912-50: Maximum discharge, 70,200 second-feet Jan. 27, 1916 (gage height, ZS.l 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

 Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0

k e.Ol

0 

0

0 

0

0 

0 

0 

0

Nov.

0 

0 

0 

0 

0

0 

0

. e.Ol

Dec.

. eo.01

Jan.

eo.01

.1 

a.l 

a.l

Feb.

ao.l 

a.l 

a.l 

a.l 

a. 2

.3 

9.1 

4.5 

1.0 

.5

1.0 

.5 

.4 

.4 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

Lendar year 1949

h. ......................................

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

ter year 1949-50 .......................

Mar.

0.2 

.4 

.2 

.2 

.2

.2 

.3 

.2 

.1

.1

.2

.1 

.2 

.2

.1

.1 

.1 

.1 

.1 

.2

.2

.1 

.1 

.1 

2.4

1.0 

1.0 

.4 

.2

.1 

.1

Apr.

0.1

.1 

.1 

.1

.1

I e.04

!i

.1 .1

e.02

Secondroot-days

0.06 

.23

.31

805.22

.58 21.1' 

9.2 

1.38 

.31 

.07 

0 

0 

.01

33.25

May

eO.Ol

Maximum

: 93

.1 

9.1 

2.4 

.1

0 

0 

XH

9.1

June

 eo.01

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 0 ' 

0 

0 

0

July

Minimum

0 

0

0

.1 

.1

0 

0 

0 

0

0

Aug.

Mean

0.002 

.008 

.010

2.21

.019 

.75 

.30

.01 

.002 

0 

0 

.0003

.091

Sept.

0 

0 

.01 

O 

O

0 

O 

0 

O 

O

0 

0 

0 

0 

0

0 

6 

O 

O 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

Runoff in 

acre-feet

0.1 

.5 

.6

1,600

1.2 

42 

18 

2.7 

.6 

.1 

0 

0 

.02

66

a No gage-height record; discharge computed on basis of 1 discharge measurement and recorded range 

in stage.

e Daily discharge less than 0.1 sec.-ft.
SAN DIEGUITO RIVER BASIN 

Santa Ysabel Creek near Mesa Grande, Calif.

23

 Location.--Water-stage recorder and broad-crested weir, lat. 33°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 the unfinished Sutherland Dam, and 4 miles southwest of-Mesa Grande. Altitude of gage, about 1,700 feet.

Drainage area.--58 square miles.

Records available .'--October 1936 to September 1950. December 1912 to September 1928 at site 

1 mile upstream.

Average discharge.--29 years (1913-28, 1936-50), 27.9 second-feet.

Extremes. Maximum discharge during year, 91 second-feet Feb. 7 (gage height, 1.74 feet); 

no now during several months.

1912-24, 1936-50: Maximum discharge, 21,000 second-feet Jan. 27, 1916, by slope-area 

method; no flow at times.

Remarks.--Records good. Small diversions above station.

Discharge, In second-feet, water year October 1949 to September 1350

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

O 

0 

O 

0 

0

0 

0 

0 

0 

O

0 

0 

0 

0 

0

O 

1.3 

1.3 

5.0 

6.9

2.7 

1.9 

1.6 

1.5 

1.4

1.3 

1.3 

1.2 

1.2 

1.3 

1.3

Jan.

1.3 

1.3 

2.1 

1.9 

1.6

1.3 

1.4 

1.7 

6.5 

4.2

3.0 

11 

8.5 

6.9 

12

7.4 

5.1 

4.5 

4.2 

3.8

3.6 

3.5 

5.3 

3.5 

3.6

3.2 

2.9 

3.0 

25 

21 

9.2

Feb.

6.4 

5.1 

4.5 

4.0 

3.8

14 

53 

20 

13 

11

23 

15 

11 

10 

9.2

8.5 

7.9 

7.4 

6.9 

6.4

6.4 

5.9 

5.5 

5.1 

4.8

4.5 

4.8 

4.8

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ai*y

at............ ..........................

ter year 1949-50 .......................

Mar.

5.1 

8.5 

5.9 

4.8 

4.0

4.0 

3.3 

3.1 

3.0 

3.1

3.6 

3.3 

3.5 

3.2 

3.3

3.2 

3.1 

3.O 

3.0 

3.3

2.8 

2.5 

2.4 

2.9 

19

18 

14 

11 

7.9 

6.4 

5.1

Apr.

4.8 

4.0 

3.5 

3.3 

2.5

2.2

1.9 

2.1 

11 

8.0

3.8 

3.6 

3.1 

3.5

3.1

2.9 

3.0 

2.8 

2.2 

2.1

2.5 

2.2 

2.9 

3.0 

2.9

2.9 

2.5 

3.3 

4.2 

3.3

Secondfoot -days

0 

0 

31.2.

2,245.3

171.5 

281.9 

169.3 

103.1 

72.5 

3.7 

0 

O 

0

833.2

Bay

4.0 

3.0 

4.9 

8.5 

4.8

3.5 

3.1 

3.1 

2.3 

2.1

2.2 

2.1 

2.2 

1.9 

2.2

1.7 

1.7 

2.0 

1.8q 

1.6

1.3

1.5 

1.7 

1.7 

1.6

1.6 

1.3 

1.1

:?.5

Maximum

0 

0 

6.9

46

25 

53 

19 

11 

8.5 

.7 

0 

0 

0

53

June

0.5 

.7 

.5 

.3 

.2

.2 

.3 

.3 

.2

.1

.1 

.1 

.1 

.1

0

JO 

Q 

Q 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

O 

0

O

1.3 

3.8 

2.4 

1.9 

.5 

0 

O 

0 

0

0

Aug. Sept.

M Runoff in Mean acre-feet

 

0 0 

0 0 

1.01 62

6.15 4,450

5.53 340 

10.1 559 

5.46 336 

3.44 204 

2.34 144 

.12 7.3 

0 0 

0 . 0 

0 0

2.28 1,650

Peak discharge (base, 110 see.-ft.). Ho peak above base.
24 SAN DIEGUITO RIVER BASIN

Santa Ysabel Creek near Ramona, Calif.

Location Water-stage recorder, lat. 33°06'20", long. 116°51'30", in NE^ see. 27, T. 12 S. 

R. IE., 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 1950.

Average discharge.--17 years (1912-22, 1943-50), 34.6 second-feet.

Extremes. Maximum discharge during year, 174 second-feet Feb. 7 (gage height, 2.30 feet); 

no flow during several months.

1912-23, 1943-50: Maximum discharge, 28,400 second-feet Jan. 27, 1916 (gage height, 

14.0 feet); no flow during several months 1921, 1946-50.

Remarks.--Records fair. Small diversions above station.

]»V-tiarge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

o 

0 

o 

o 

o

0

o

o

0 

0

0

o

0

o 

.1

.7 

.7 

.8 

2.2 

8.1

3.0 

1.3 

.8 

.8 

.8

.7 

.8 

.8 

1.0 

1.0 

1.0

Jan.

1.1 

1.3

3.3 

2.2

1.7 

1.1 

2.0 

7.7 

6.9

3.7 

12 

13 

8.3 

15

12 

7.3 

5.7 

5.7 

5.3

5.3 

4.9 

4.5 

4.5 

4.9

4.5 

4.5 

4.1 

38 

38 

17

Feb.

12 

9.6

6.5 

6.1

17 

110 

34 

20 

18

32 

25 

18 

16

14

13 

12 

10 

9.6 

9.O

9.0 

8.3 

7.7 

7.3 

7.3

7.3 

7.3 

7.3

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

Hflv

June 

July 

Augu 

Sept

Wa

lendar year 1949

h. ......................................

ter year 1949-5O .......................

Mar.

7.3 

9.0

6.9

6.1

6.1 

5.3 

5.3 

5.3 

4.9

5.3 

4.9 

4.9 

4.9 

4.9

4.5 

4.1 

4.1 

4.1 

4.5

4.1 

4.1 

4.1

4.1 

20

23 

18 

13 

9.6 

7.7 

6.9

Apr.

6.5 

6.5

6.1 

4.9

4.1 

3.7 

3.7 

13 

12

7.3 

5.7 

5.3 

5.3 

4.9

4.1 

4.1 

3.7 

3.0 

2.7

3.0 

3.3 

3.7 

4.9 

4.9

4.5 

4.1 

4.1 

6.1 

5.3

Secondfoot -days

O 

0 

24.6

3,047.0

247.9 

461.0 

224.7 

156.6 

91.4 

3.0 

0 

0 

0

1,209.2

May

5.3 

4.1

9.6 

7.7

5.3 

4.1 

3.7 

3.0 

2.2

2.4 

2.4

2.2 

2.4 

2.7

2.7 

2.7 

2.7 

3.O 

2.4

1.9 

1.7 

1.9 

1.9 

1.9

1.7 

1.3 

1.1 

1.0 

.8 

.7

Maximum

0 

O 

8.1

96

38 

110 

23 

13 

9.6 

.5 

O 

0 

O

110

June

0.5 

.5 

.4 

.4 

.4

.4 

.4

O 

O 

O

o 

o 

o

0 

0

0 

0

o

0 

0

o

0 

0 

0

o

0 

0 

0 

0

o

July

Hinlmura

0 

0 

0

O

1.1

6.1 

4'.1 

2.7 

.7 

0 

0 

0 

0

0

Aug.

Mean

0 

O 

.79

8.35

8.00 

16.5 

7.25 

5.22 

2.95 

.10 

0 

0 

0

3.31

Sept.

Runoff in 

acre-feet

0 

0 

49

6,040

492 

914 

446 

311 

181 

6.0 

0 

0 

0

2,400

Peak discharge (base. IIP Bee.-ft) . Jan. 29 (8:10 p.m.) 110 sec.-ft.} Feb. 7 (8 a.m.) 174 sec.-ft.
SAN DIEOUITO RIVER BASIN 25

Santa Ysabel Creek neat1 San Pasqual, Calif.

Location. Water-stage recorder and concrete control, lat. 33°05'00", long. 116°55'00", in 

5ElT"s~ec. 31, T. 12 S., R. IE., 1.5 miles downstream from Roden Canyon and 2 miles east 

of San Pasqual. Altitude of gage, about 500 feet (from topographic map).

Drainage area.--128 square miles.

Records available.--April 1947 to September 1950 (irrigation seasons only). December 1905 

to September 1912 at site 0.25 mile downstream, published as Santa Ysabel Creek near 

Escondido.

Remarks. Records good. Small diversions above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

EO

El

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

Dec. Jan. Feb.

Month

Octo 

Hove 

Deoe

Ca

janu 

Pebr 

Marc 

Aprl 

Ifav

June 

July 

Augu 

Sept

Wa

lendar year

1 17-30. ................................

Mar. Apr.

f3.5 

3.3 

2.9 

2.5

2.4 

2.6 

2.6 

3.6 

3.8

3.3 

3.5 

3.7 

3.8 

3.9

Secondfoot-days

0 

.1

-

45.4 

86.9 

2.0 

0 

0 

0

-

May

4.1 

3.9 

4.1 

7.1 

7.6

5.8 

4.4 

3.8 

3.5 

2.6

2.3 

2.5 

2.5 

2.7 

2.7

2.9 

2.8 

2.7 

2.5 

2.2

1.9 

1.6 

1.6 

1.7 

1.5

1.3 

1.3 

1.1 

.9 

.7 

.6

Maximum

0 

.1

-

3.9 

7.6 

.4 

0 

0 

0

-

June

0.4 

.4 

.3 

.2 

.2

.2 

.2 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

O 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

July

0 

0

-

2.4 

.6

0 

0 

0 

0

-

Aug.

Mean

0 

.003

-

3.24 

2.80 

.07 

0 

0 

0

-

Sept.

Runoff in 

acre-feat

0 

.2

1

90 

172 

4.0 

0 

0 

0

-

puted on basis of partly estimated gagp-height record.

San Dieguito River near San Pasqual, Calif.

Location.--Water-stage recorder, lat. 33°04'00", long. 117 0 02'05H , 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 325 feet (from topographip map).

Drainage area.--250 square miles.

Records available.--April 1947 to September 1950 (irrigation seasons only).

Remarks. So flow Oct. 1 to Nov. 30, 1949, Apr. 17 to Sept. 30, 1950. No records collects 

NovT 1, 1949, to Apr. 16, 1950. Diversions for irrigation and pumping from wells along 

river in 13an Pasqual Valley. There is an undetermined amount of underflow at this 

station.
26 SAN DIEOUITO RIVER BASIN

Guejito Creek near San Pasqual, Calif.

Location.--Water-stage recorder and concrete control, lat. 33°06'55", long. 116°57'10", in 

'hfit sec. 23 (unsurveyed), T. 12 S., R. 1 W., and 2 miles north of San Pasqual. Altitude 

of gage, about 700 feet (from topographic map).

Drainage area.--24 square miles.

Records available.--December 1946 to September 1950.

Extremes.--Maximum discharge during year, 34 second-feet Feb. 7 (gage height, 2.38 feet); 

minimum, less than 0.01 second-foot several months.

1946-50: Maximum discharge, that of Feb. 7, 1950; no flow during several periods of 

most years.

Remarks. Records good. Diversion about a quarter of a mile above station for irrigation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

. eo.Ol

Nov.

 eo.Ol

2.2

.8 

.1

e.03 

y e.07

Dec.

0.1 

.1 

.1 

.1 

.1

.1 

.2 

.4 

.4 

.4

.3 

.3!

.2 

.2

.3

.9 

.6 

.6 

2.2 

1.3

.8 

.6 

.5 

.5 

.4

.4 

.4 

.3 

.3 

.3 

.3

Jan.

0.3 

.4 

.6 .'5 

.4

.3 

.3 

.5 

2.0 

.8

.6 

2.2 

1.5 

1.1 

1.2

.9 

.7 

.7 

.6 

.6

.6 

.6

:i.6

.5 

.5. 

.7 

8.0 

2.1 

1.1

Feb.

0.9 

.8 

.7 

.6 

.6

2.9 

12 

3.0 

1.4 

1.3

1.7 

1.5 

1.0 

.9 

.8

.7 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.5

.5 

.5 

.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Via

lendar year 194S

ter year 1949-50 .......................

Mar.

0.5 

.6 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4

.4 

.4 

.4

.4 

.4 

.4 

.4 

3.0

1.3 

.9 

.7 

.6 

.5 

.4

Apr.

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.5 

1.2 

.7

.5 

.4 

.4 

.4

.3

.3 

.3 

.3 

.3 

.3

.3

.4 

.5 

.6 

.6 

.5

Secondfoot-days

0.31 

3.93 

13.7

268.56

32.1 

37.7 

17.5 

13.2 

7.70 

1.16 

.31 

J.72 

.090

127.872

May

0.5 

.4 

.6 

.6 

.5

.4 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.2 

.2

.1 

.2 

.3 

.2 

.2

.1 

I e.08

Maximum

2.2 

2.2

14

8.0 

12 

3.0 

1.2 

.6

12

June

> eO.07 

. e.03

. e.02 

-

Minimum

0.]

-

-

*41 -

July

. eO.Ol

Aug.

eO.Ol 

e.004

Mean

0.010 

.131 

.44

.736

1.04 

) 1.35 

I .56 

i .44 

.248 

.039 

.010 

.006 

.003

.350

Sept.

,eO.OO3

Runoff in 

acre-feet

0.6 

7.8 

27

534

64 

75 

35 

26 

15 

2.3 

.6 

.3 

.2

254

e Daily discharge less than 0.1 sec.-ft.
SAN DIEGUITO RIVER BASIN 27

Guejito Creek at San Pasqual, Calif.

Location.--Water-stage recorder, lat. 33°05'35", long. 116°57'45", in NW^- sec. 35, T. 12 

b., K. 1 W., at mouth, at highway bridge 1 mile west of San Pasqual. Altitude of gage, 

about 410 feet (from topographic map).

Drainage area.--28 square miles.

Records available. February to September 1915, October 1916 to September 1917, and October 

1945" to September 1950.

Extremes.--Maximum discharge during year, 32 second-feet Feb. 7 (gage height, 3.07 feet);, 

no flow during most of year.

1915, 1916-17, 1946-50: Maximum daily discharge, 118 second-feet Feb. 10, 1915, 

estimated; no flow during several months of each year.

Remarks.--Records fair. Diversion about 2 miles above station for irrigation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

Zl 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

"J

OOOP OOOOO I O

Month

Ooto 

Nove

Dece

Ca

Janu 

Pebr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

wa

lendar year 1949

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

ter year 1949-50 ...............

Mar.

0 

0 

0

a. 01

e.04 

e.06

Apr.

. eO.05 

I e.05 

1 e.04

e.06

:i

e.08

- 1

Secondfoot-days

0 

0 

0

88.4

0 

.5 

.95

1.82 

1.21 

.05 

0 

0 

0

4.53

Hay

eO.OS

e.03

> e.04 

> e.06 

e.02

Maximum

0 

0 

0

4.4

0 

.5

.1

0 

0 

0

.5

June

rH O 

OOOOOI OOOOO 

o

July Aug.

Minimum Mean

0 

0

0

0

0 

0 

0

o

0 

0 

0

0

o

0 

0

.24

0 

.02 

.031 

.061 

.039 

.002 

0 

0 

0

.012

Sept.

Runoff in 

acre-feet

0 

0 

0

176

0 

1.0 

1.9 

3.6 

2.4 

.1 

0 

0 

0

9.0

a No gage-height record; discharge computed on basis of weather records and interpolation, 

e Daily discharge less than O.-l sec.-ft.
28 SAN DIEGUITO RIVER BASIN

Santa Maria Creek near Raraona, Calif.

Location.--Water-stage recorder and concrete control, lat. 330 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 Raraona. 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 1950.

Average _discharge.--11 years (1913-20, 1946-50), 7.61? second-feet.

Extremes.--Maximum discharge during year, 0.7 second-foot Mar. 25 (gage height, 1.04 feet); 

no now during most of year.

1912-20, 1946-50: Maximum discharge, 7,140 second-feet Jan. 27, 1916 (gage height, 

15.9 feet, datum then in use), by slope-area method; 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 1949 to September 1950

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

dot. Nov. Dee. Jan. Feb.

0 

0 

0 

0 

0

0

.1 .1

0 

0

.1

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

.1

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0 

0 

0

45.8

0 

.3 

.3

0 

0 

0 

0 

0 

0

.6

May

Maximum

0 

0 

0

6.5

0 

.1 

.2 

0 

0 

0 

0 

0 

0

.2

June July Aug.

Minlraun Mean

0

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

0 

0 

0

.13

0 

.01 

.01 

0 

0 

0 

0 

0 

0

.002

Sept.

Runoff in 

acre-feet

0 

0 

0

91

0 

.6 

.6 

0 

0 

0 

0 

0 

0

1.2

Peak discharge (base, 1.0 see.-ft.). No peak above base.
SAN LUIS KEY RIVER BASIN 29

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

Location. Water-stage recorder, lat. 33°21'30", long. 117°02 I 50", in SVf£ sec. 25, T. 9

 S., H. 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 September 1950 (irrigation seasons only).

Remarks. Records good. Plow regulated by Lake Henshaw. Diversions above station, mainly

 5y~TTscondido Mutual Water Co. U. S. Indian Irrigation Service diverted 175 acre-feet 

during period Oct. 1 to Nov. 30, and 425 acre-feet during period May 1 to Sept. 30 at 

Pala diversion dam.

Cooperation . One

and Pauoa Kanc

DISC

Bay

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

'

Mov.

0 

0 

0 

0 

0

0 

0 

0 

0 

.7

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

discharge measurement furnished by Santa Margarita Ranch (U. S. Navy) 

h.

harge, in second-feet, water year October 1949 to September 1950

Dec.

0 

0

Jan. Feb.

Month

Oeto 

Hove 

Deoe

Ca

Janu 

Fet>r 

Marc 

Aprl

Mte-v

June 

July 

Augu 

Sept

Ha

ber. ....................................

nber. ...........------- ------------

lendar year 

ary

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

St......................................

Mar.

.7 

.6 

.6 

.4 

.3

Apr.

0.3 

.3 

.3 

.3 

.3

.2 

.3 

.3 

.9 

.4

.2 

.2 

.2 

.2 

.2

.2 

.1 

.1 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

May

0.6 

.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

Second- Italian foot -days """nun

0 0 

.7 .7

-

2.6 .7 

5.1 .9 

.8 .6 

.4 .4 

0 0 

0 0 

0 0

-

June

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

.4 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

0

-

.3

0 

0 

0 

0 

0 

0

-

Aug. Sept.

 ___ Runoff in 

wean acre -feet

0 0 

.02 1.4

-

.52 5.8 

.17 10 

.03 1.6 

.01 .8 

0 0 

0 0 

0 0

-
30 SAN LUIS REY RIVER BASIN

Sar, Luis Rey River at Monserate Narrows, near Pala, Calif.

Location.--Water-stage recorder, lat. 33°20'15", long. 117°08'10", in NE^ sec. 6, T. 10 S., 

R. 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.

Hecoras available.--December 1935 to November 1941 (fragmentary), October 1946 to September 

1950.

Extremes.--Maximum discharge during year, 7.3 second-feet Feb. 12 (gage height, 1.36 feet); 

no now Oct. 1 to Nov. 24, July 30 to Sept. 30.

1935-41, 1946-50: Maximum gage height, 8.7 feet Feb. 7, 1937, datum then in use (discharge not determined); no flow at times during 1948-50.

Remarks.--Records good. Regulation at Lake Henshaw; several diversions above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0 

0 

0

.1

.5 

.8 

1.0

1.1 

1.2

Dec.

1.4 

1.5 

1.6 

1.7 

1.8

1.9 

2.0 

2.2 

2.2 

1.8

1.2 

1.4 

1.7 

2.0 

2.2

2.4 

2.4 

2.7 

2.8 

2.8

2.8 

3.0 

3.8 

4.2 

3.8

3.7 

3.7 

3.7 

3.5 

3.3 

3.3

Jan.

3.3 

3.3 

3.3 

3.5 

3.7

3.8 

3.8 

4.2 

4.4 

4.2

4.2 

4.4 

4.4 

4.6 

4.6

4.4 

4.4 

4.4 

4.2 

4.2

4.2 

4.2 

4.2 

4.2 

4.0

3.8 

3.8 

3.7 

4.2 

4.0 

3.8

Feb.

3.7 

3.7 

3.7 

3.7 

3.8

4.6 

5.0 

6.6 

6.6 

6.0

6.0 

7.0 

6.8 

6.0 

6.0

5.8 

5.6 

5.4 

5.4 

5.2

5.2 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194

ter year 1949-50 .......................

Mar.

5.0 

5.0 

5.0 

5.0 

5.0

4.6 

4.0 

4.2 

4.0 

4.0

4.0 

4.0 

4.0 

4.0 

4.0

4.0 

4.4 

4.6 

4.6

4.4 

4.0 

4.0 

3.8 

5.2

3. " 

3.7 

3.7 

3.5 

3.3 

3.3

Apr.

3.5 

3.5 

3.8 

3.7 

3.5

3.3 

3.1 

3.1 

3.3 

3.0

2.7 

2.7 

2.8 

2.2 

1.8

1.8 

1.8 

1.8

1.8

1.7 

2.0 

2.8 

2.7 

2.7

2.4 

2.4 

3.0 

3.0 

3.0

Secondfoot-days

0 

4.7 

78.5

1,390.7

125.4 

147.0 

130.7 

80.6 

64.7 

31.3 

10.6 

0 

0

673.5

May

3.0 

3.1 

3.3 

3.1 

2.8

2.8 

2.8 

2.7 

2.6 

2.4

2.4 

2.3 

2.3 

2.3 

2.3

2.3 

2.3

1.9 

1.7

1.5 

1.7 

1.8 

1.6 

1.4

1.3 

1.0 

.9 

1.1 

1.1 

1.3

Maximum

0 

1.2 

4.2

21

4.6 

7.0 

5.2 

3.8 

3.3 

1.5 

.6 

0 

0

7.0

June

1.4 

1.4 

.4 

.4 

.4

.5 

.5 

.2 

.2 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

.9 

1.0

.9 

.9 

.8 

.9 

.9

1 .8 

.8 

.7 

.7 

.6

July

0.6 

.6 

.6 

.6 

.6

.5 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.3 

.3

.2 

.3 

.2 

,2

.1

.1 

.1 

.1 

.1 

0 

0

Aug.

Minimum j Mean

0 0 

0 .16 

1.2 2.53

0 3.81

3.3 4.05 

3.7 5.25 

3.3 , 4.22 

1.7 2.69 

.9 2.09 

.6 1.04 

0 .34 

0 0 

0 0

0 1.85

Sept.

Runoff in 

acre-feet

0 

9.3 

156

2,760

249 

292 

259 

160 

128 

62 

21 

0 

0

1,340

San Luis Rey River near Bonsall, Calif.

Location.--Water-stage recorder, lat. 33°15'OS", long. 117°14'55", in NE^ sec 1 T 11 

i?;',Jh 4 ,W., °- 8 mile downstream from bridge on Fall Brook-Escondido road and's miles 

southwest of Bonsall. Datum of gage is 108.10 feet above mean sea level, datum of

Drainage area.--514 square miles.

Recoras available.--October 1929 to September 1950. July 1916 to September 1918 (gage

~neignts ana discharge measurements only) at site 0.8 mile upstream

Average discharge.--21 years (1929-50), 32.6 second-feet

extremes. NO flow during year.

ZIF2 H"t° : Maxim discharge, 18,100 second-fe.et Mar. 3, 1938 (gage height, 12.60 

art'of ah " ' m in£ curve extended above 2,400 second-feet; no flow

Remarks. No flow since Apr. 19, 1949. Regulation at Lake Henshaw; several diversions 

aFove station; Figures for calendar year 1949 are as follows: Total second-foot-days 

secL^oofTrteoff gTa^feet4 SeCOnd-feet; mlnlmura **lly, no flow; mean, 0.13

Revisions (wdper $earsj.--W 881: 1938.
SAN LUIS REY RIVER BASIN 31 

San Luls Rey Rlver_at jDceanside, Calif_._

Location. Water-stage recorder, lat. 33 0 12'40", long. 117<>22'40", in NW$ sec. 23, T. 11

 S., H. 5 W., 0.5 mile upstream from State highway bridge, 0.7 mile above mouth, and

1 mile north of Oceanslde. Altitude of gage, about 20 feet. 

Drainage area.--557 square miles. 

Records avaTTable. April 1912 to September 1914, January 1916, October 1929 to January

 iy4ii, October 1946 to September 1950.

Average discharge. 18 years (1912-14, 1929-41, 1946-50), 29.3 second-feet.

Extremes.--no now during year. T912-14, 1916, 1929-42, 1946-50: Maximum discharge, 95,600 second-feet Jan. 14,

1916; no flow for several months of each year. 

Remarks.--No flow since reestablishment of station Oct. 1, 1946. 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, about 700 feet downstream from Vail Dam, 0.2 mile downstream from Arroyo Seco, and 10 miles east of Temecula, Riverside County. Altitude 

of gage, about 1,350 feet.

Drainage area. 319 square miles.

Records available. January 1923 to September 1950.

Average discharge. 27 years, 13.5 second-feet.

Extremes. Maximum discharge during year, 15 second-feet Feb. 27; no flow during most of

1923-50: Maximum discharge, 17,100 second-feet Feb. 16, 1927 (gage height, 19.5 

feet), by slope-area method; no flow during most of 1949 and 1950.

Remarks. Records fair. No diversion above station. Plow regulated by Vail Reservoir

 EeHflhning in November 1948 (capacity, 50,000 acre-feet).

Cooperation. Gage-height record and nine discharge measurements furnished by Santa Marganta Kanch (U. S. Navy) and Pauba Ranch,

Discharge," In second-feet, water year October 1949 to September 195O

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.

O 

0

o 

o 

o

o 

o 

o 

o

0

0 

0

o 

o 

o

0

o 

o" o 

o

o

0

o

0

o 

o

0 

0 

1.4 

2.8 

3.0

Nov.

6.1 

6.7

0 

0 

0

o

0 

0 

0

o

o 

o

0 

0 

0

o 

o 

o

0 

0

0 

0 

0 

0 

0

0 

0

0

o 

o

Dec. Jan. Feb.

o

0 

0 

0 

0

0

o

0

o 

o

o

0 

0

o

0

0 

0 

0 

0 

0

o

0

o 

o 

o

0

.1 

 o

Month

Goto 

Nove 

Bece

ca

Janu 

Febr 

Marc 

Aprl

Kav

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 1949 

ary

ember

Mar. Apr.

Secondfoot -days

7.2 

12.8 

0

88.5

O 

.1 

0 

0 

O 

0 

0 

118.4 

0

138.5

May

Maximum

3.0 

6.7

0

6.7

0 

.1 

0 

0 

0 

0 

O 

10

o

10

June

Minimum

July

O 

O 

0

0

o 

o

0

o 

o 

o 

o 

o 

o

o

Aug.

O 

O

0

o 

o

o 

o 

o 

o 

o

o 

o

0 

0

o

0

o

5.4 

8.1 

10

10 

9.7 

10 

10 

10

10 

10 

10 

10 

5.2 

0

Mean

0.23 

.43 

0

.24

O 

'0.OD4 

0 

0

o 

o

3.82 

O

.38

Sept.

Runoff In 

acre-feet

14 

25 

0

175

0 

.2

0 

0

o

0

o

235 

O

274
32 SANTA MARQARITA RIVER BASIN

Temeoula Creek at Railroad Canyon, near Temecula, Calif.

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

upper end of Temecula or Railroad Canyon, 0.1 mile downstream from Murrieta Creek and 

1.5 miles south of Temecula, Riverside County. Altitude of gage, about 950 feet.

Drainage area. 592 square miles.

Records available. January 1923 to September 1950.

Average discharge.--27 years, 26.6 second-feet.

Extremes. Maximum discharge during year, 28 second-feet Nov. 10 (gage height, 1.82 feet): 

 minimum daily, 2.9 second-feet Aug. 15, 18, 24, 29.

1923-50: Maximum discharge, 25,000 second-feet Feb. 16, 1927 (gage height, 14.6 

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

Remarks. Records fair. Pumping diversions affect flow during irrigation season. Plow 

partly regulated by Vail Reservoir beginning in November 1948 (capacity, 50,000 acrefeet).

Cooperation. Gage-height record and 297 discharge measurements furnished by Santa 

mrgarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

 4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.4 

4.8 

4.8 

4.8 

5.0

4.8 

5.4 

5.6 

6.0 

5.8

5.4 

5.2 

5.4 

5.0 

5.6

5.6 

5.8 

6.0 

6.6 

6.0

5.8 

5.2 

5.0 

5.2 

5.0

4.8 

5.2 

5.8 

5.2 

5.6 

6.0

Nov.

5.6 

5.4 

5.6 

5.8 

6.0

6.0 

6.4 

6.4 

6.2 

11

8.2 

6.8 

6.6 

7.6 

6.4

6.4 

5.8 

6.0 

6.0 

6.0

6.2 

6.4 

6.6 

6.6 

6.8

6.4 

7-.0 

7.0 

6.8 

6.8

Dec.

6.8 

6.8 

6.8 

7.0 

7.0

6.8 

6.8 

7.6 

7.3 

7.0

7.3 

7.3 

7.0 

7.6 

8.5

9.1 

8.5 

9.4 

11 

9.4

8.5 

7.9 

8.2 

8.5 

8.5

8.2 

8.2 

8.5 

8.5 

8.2 

7.9

Jan.

7.9 

8.2 

8.5 

8.2 

7.9

7.9 

8.5 

8.8 

10 

8.5

10 

12 

9.4 

8.8 

8.8

7.9 

7.9 

7.9 

7.9 

8.2

7.6 

7.9 

7.9 

7.9 

7.6

7.6 

7.3 

7,6 

9.7 

9.1 

7.S

Feb.

7.6 

7.9 

7.6 

7.6 

7.3

9.5 

11 

9.7 

8.5 

9.7

9.1 

7.9 

7.6 

7.6 

7.6

6.8 

7.0 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.3 

7.3

7.3 

7.3 

7.0

Month

Octo 

Hove

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

liber. ...........----..-----..-----..-...

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

7.3 

7.3 

6.8 

7.0 

6.8

6.6 

6.4 

7.0 

6.8 

7.0

7.0 

7.6 

7.3 

7.0 

6.8

6.6 

6.4 

6.6 

6.6 

6.6

5.8 

5.8 

6.0 

6.8 

9.7

9.7 

7.3 

7.3 

6.6 

6.8 

6.2

Apr.

6.2 

6.0 

5.8 

5.6 

6.2

6.0 

6.0 

6.4 

7.3 

6.8

6.4 6.4- 

6.6 

5.8 

6.2

5.6 

5.6 

5.4 

5.0 

5.2

5.2 

5.4 

5.4 

5.2 

5.2

5.2 

5.6- 

5.6 

5.2 

5.2

Secondfoot-days

166.8 

196.8 

246.1

2,653.2

261'. 3 

221.8 

215.5 

173.7 

152.6 

135.8 

118.4 

99.5 

111.2

2,099.5

May

5.6 

5.4 

5.8 

6.0 

5.4

5.4 

5.2 

5.2 

4.8 

4.4

4.8 

4.6 

4.4 

4.8 

5.0

5.0 

5.0 

5.2 

5.0 

4.8

4.8 

4.8 

5.2 

5.2 

4.6

4.4 

4,4 

4.4 

4.2 

4.2 

4.6

Maximum

6.6 

11 

11

29

12 

11 

9.7 

7.3 

6.0 

5.2 

4.4 

3.8 

4.2

12

June

4.2 

4.8 

5.0 

4.6 

4.2

4.6 

4.6 

4.8 

4.8 

4.6

4.4 

4.4 

4.8 

4.4 

4.6

4.2 

4.6 

4.6 

4.4 

4.6

4.8 

5.2 

4.6 

4.6 

4.6

4.4 

4.4 

4.0 

4.0 

4.0

July

Hlnlnum

4.4 

5.4 

6.8

3.6

7.3 

6.6 

5.8 

5.0 

4.2 

4.0 

3.2 

2.9 

3.2

2.9

4.0 

4.2 

4.0 

3.8 

4.2

4.0 

4.0 

4.2 

4.2 

4.4

3.8 

3.8 

4.4 

3.6 

3.8

3.8 

3.8 

3.4 

3.8

3.6

3.8 

3.6 

3.6 

3.4

4.0

3.6 

3.2 

3.6

3.6 

3.6 

3.6

Aug.

3.4 

3.2 

3.8 

3.6 

3.6

3.4 

3.4 

3.1 

3.2 

3.2

3.1 

3.1 

3.2 

3.4 

2.9

3.2 

3.1 

2.9 

3.1 

3.2

3.2 

3.2 

3.4 

2.9 

3.2

3.1 

3.1

3.1 

- 2.9 

3.1 

3.2

Ween

5.38 

6.56 

7.94

7.27

8.43 

7.92 

6.95 

5.79 

4.92 

4.53 

3.82 

3.21 

3.71

5.75'

Sept.

3.4 

3.2 

3.4 

3.8 

4.0

3.8 

3.8 

3.6 

3.4 

3.4

3.4 

3.6 

3.6 

3.6 

3.8

4.0 

4.0 

3.8 

3.8 

3.4

3.6 

3.6 

3.8 

3.8 

3.8

3.8 

3.8 

4.0 

4.2 

4.0

Runoff in 

acre -feet

331 

390 

488

5,260

518 

440 

427 

345 

303 

26-9 

235 

197 

221

4,160

Peak discharge (base, 70 sec.-ft.). Ho peak above base.
SANTA MARGARITA RIVER BASIN 

Santa Margarita River near Fall Brook, Calif.

33

Location.--Water-stage recorder, lat. 33°24'35", long. IIV'WSO", in NE£ sec. 12, T. 9 

3., H. 4 W., 2 miles north of Pall Brook. Altitude of gage, about 290 feet. Auxiliary water-stage recorder on opposite bank about 2,000 feet downstream.

Drainage area. 645 square miles.

Records available. November 1924 to September 1950.

Average discharge. 25 years (1925-50), 34.3 second-feet.

Extremes. Maximum discharge during year, 30 second-feet Nov. 10 (gage height, 0.72 foot); 

minimum daily, 0.6 second-foot Aug. 10, 11.

1924-50: 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 1939.

Remarks. Records good. Flow partly regulated by Vail Reservoir on Temecula Creek. Severai diversions for irrigation above station.

Cooperation. Gage-height record and 297 discharge measurements furnished by Santa Margarita Hanch (U. S. Navy) and Pauba Ranch.

Discharge, In second-feet, water year October 1949 to September 1950

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.

4.3 

4.3

4.3

4.9

5.1 

4.0 

4.5 

4.5 

4.2

3.9 

3.7 

4.3

3.6 

3.6

3.7 

5.1 

5.9 

6.1 

5.7

4.7 

4.2 

4.3 

3.6 

3.4

3.6 

3.4 

3.6 

3.4 

3.4 

3.4

Nov.

3.4

3.6 

3.6

3.6

3.6 

3.9 

4.3 

4.7 

12

12 

8.1 

6.7 

5.5 

5.7

6.1 

5.5 

5.1 

4.7 

4.5

4.7 

. 5.1 

5.5 

5.9 

5.9

6.1 

6.5 

6.7 

6.7 

6.7

Dec.

6.3 

6.5 

6.3

5.9

6.1 

6.7 

7.3 

7.3 

8.1

7.8 

7.5 

7.5 

7.3 

7.8

9.0 

8.7 

12 

13 

11

10 

9.0 

9.3 

9.0 

9.0

9.0 

9.0 

8.7 

9.0 

9.0 

8.7

Jan.

9.0 

9.3 

9.6 

9.3 

9.0

8.7 

9.0 

9.0 

11 

11

9.9 

13 

13 

11 

10

9.6 

9.3 

9.3 

9.3 

9.3

8.7 

8.7 

8.7 

9.0 

8.7

8.4 

8.7 

8.7 

13 

11 

10

Feb.

9.6 

9.3 

9.3 

9.0 

8.7

13 

15 

13 

11 

11

12 

11 

9.9 

9.3 

9.0

9.0 

8.7 

8.7 

8.7 

8.7

8.7 

8.7 

8.7 

8.7 

8.7

8.7 

8.7 

8.4

Month

Goto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay.

June 

July 

Augu 

Sept

va

mber ...................................

lendar year 1949 

az*y

h. .......................................

ter year 1949-50 .......................

Mar.

8.4 

8.4 

8.1 

7.8

7.3 

7.5 

7.3 

7.5 

7.8

7.5 

7.5 

7.8

7.3

7.8 

7.8 

7.5 

7.5 

7.5

7.3

7.3 

7.0 

7.3

15

11 

9.6 

9.0 

8.1 

8.1 

7.5

Apr.

7.5 

7.0 

7.0 

6.7

7.0 

7.3 

6.7 

9.0 

8.7

8.1 

7.8 

7.5

6.7

6.3 

5.5 

3.9 

4.7

4.5

3.9

5.1 

6.5 

5.9 

4.9

5.7 

5.9 

6.1 

5.9 

6.1

Secondfoot -days

131.4 

169.8 

257.9

2,858.6

302.2 

273.2 

252.0 

193.0 

153.8 

85.9 

52.9 

37.0 

60.6

1,969.7

May

5.5 

6.5 

6.5 

5.9

5.7 

6.1 

5.3 

4.9 

4.3

3.9 

4.0 

3.9

5.1

5.5 

5.7 

5.7 

4.9 

4.5

4.5 

4.7 

5.7 

5.5 

4.3

4.2 

4.0 

4.0 

4.2 

4.2 

4.2

Maxima

6.1 

12 

13

41

13 

15 

15 

9.0 

6.5 

4.5 

2.5 

2.4 

2.9

15

June

3.9 

3.6 

4.3

4.0

4.2 

4.2 

3.7 

3.0 

2.8

3.0 

2.9 

2.9

3.0

2.5 

2.5 

2.8 

2.8 

2.2

2.2 

2.2 

1.9 

2.4 

2.7

2.4 

1.7 

1.7 

1.6 

1.4

July

1.3 

1.8 

1.3 

1.6

1.7 

1.5 

1.6 

1.8 

2.3

2.2 

2.0 

1.9

1.8

1.9 

2.5 

2.3

2.0

1.7

1.5 

1.5 

1.6 

1.9 

1.8

1.4 

1.3 

1.3 

1.2 

1.3 

1.7

Minimum

3.4 

3.4

5.9

2.3

8.4 

8.4 

7.0 

3.9 

3.9 

1.4 

1.2 

.6 

1.3

.6

Aug.

2.4 

1.3

1.0 

1.0

.9

1.1 

1.0 

.7 

.6

.6

1.0 

1.1

1.2

-1.0 

1.2 

1.0 ".9 

.8

1.6 

1.3

1.4 

1.2 i.s 

i.s

1.3 

1.6 

1.2 

1.3 

1.2

Mean

4.24 

5.66 

8.32

7.83

9.75 

9.76 

8.13 

6.43 

4.96 

2.86 

1.71 

1.19 

2.02

5.40

Sept.

1.7 

2.0 

Z.7

2.4

2.9

2.9 

2.9 

2.2 

1.7

2.0 

1.9 

1.6

1.9

2.0 

1.8 

1.8 

1.7 

1.7

1.5 

1.3 

1.4 

1.6 

2.0

2.0 

2.3 

2.2 

2.3

2.8

Runoff in 

acre-feet

261 

337 

512

5,670

599 

542 

500 

383 

305 

170 

105 

73 

ISO

3,910

PeaK discharge (base. £10 sec.-ft.). Ho peak above base.
34 SANTA MARGARITA RIVER BASIN

Santa Margarita River at Ysidora, Calif.

Location.--Water-stage recorder, lat. 33°14'40", long. 117°22'50", in Santa Margarita y 

Las J?'iores Grant, 1 mile downstream from Ysidora, San Diego County, and about 2 miles 

upstream from mouth. Altitude of gage, about IS feet.

Drainage area. 740 square miles.

Kecoras available. February 1923 to September 1929, October 1930 to September 1950.

Average aiscnarge. 22 years (1927-29, 1930-50), 40.6 second-feet.

.Extremes. no riow during year.

 T523-29, 1930-50: Maximum discharge, 33,600 second-feet Feb. 16, 1927, by slopearea method; no flow during part of most years.

Remarks.--No flow since Mar. 19, 1949. Figures for calendar year 1949 are as follows: 

total second-foot-days, 241.5; maximum daily discharge, 28 second-feet; minimum daily, 

no flow; mean, 0.66 second-foot; runoff, 479 acre-feet. Diversions above station for 

irrigation on Santa Margarita Ranch and Pauba Ranch. (See p. for records of O'Neill 

ditch near Ysidora.) Flow partly regulated by Vail Reservoir on Temecula Creek beginning in 1948.

Cooperation. Gage-height record furnished by Santa Margarita Ranch (U. S. Navy) and Pauba 

Kancn.

Murrieta Creek at Temecula, Calif.

Location.--Water-stage recorder, lat. 33°29'00", long. 117°08'50", in Temecula Grant, 0.6

mile upstream from Temecula Creek and 0.5 mile south of Temecula, Riverside County.

Altitude of gage, about 1,050 feet. 

Drainage area. 220 square miles. 

Kecoras available.--October 1930 to September 1950. 

Average aiscnarge. 20 years, 11,7 second-feet. 

Extremes. maximum discharge during year, 3.6 second-feet Mar.

minimum daily, 0.3 second-foot on many days.

1930-50: Maximum discharge, 17,500 second-feet Jan. 23, ____

feet); minimum daily, 0.2 second-foot Aug. 26, Sept. 6-11, 1949. 

Remarks. Records good. No appreciable diversion above station, 

uooperation. Gage-height record and 297 discharge measurements furnished by Santa Margarita Kancn {U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1949 to September 1950

26 (gage height, 0.58 foot); 

1943 (gage height, 13.82

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 

.4 

.4

.4

.4 

.5 

.4 

.5 

.5

.5 

.5 

.4 

.4 

.4

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.4 

.4

NOV.

0.4 

.5 

.5

.4

.4 

.5 

.5 

.5 

1.6

1.4 

.9 

.7 

.7 

.7

.7 

.6 

.7 

.6 

.6

.6 

.8 

.7 

.7 

.6

.6 

.7 

.6 

.6

.6

Dec.

0.6 

.6 

.7

.6

.7 

.7 

.7 

.7 

1.2

1.0 

.8 

1.2 

1.4 

1.4

1.6 

1.7 

1.8 

2.9 

2.0

2.0 

1.8 

1.8 

1.8 

1.8

1.7 

1.7 

1.7 

1.8 

1.7 

1.8

Jan.

1.8 

1.8 

.8

.7

.7 

.6 

1.8 

2.8 

1.8

1.6 

2.9 

2.3 

1.7 

1.8

1.5 

1.2 

1.2 

1.2 

1.2

1.1 

1.2 

1.2 

1.2

1.1

1.1 

1.2 

1.1 

1.8 

2.0 

1.5

Feb.

1.2 

1.2 

1.2 

1.1 

1.0

1.5 

2.5

2.1 

1.7 

1.7

1.7 

1.5 

1.3 

1.2 

1.0

1.0 

1.1

1.0 

1.1 

1.2

1.0

1.1

1.2 

1.2

1.0

1.1 

1.0 

1.0

Month

Octo 

Move

Dace

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

lender year 1949 

ary

ter year 1949-50 .......................

Peak discharge (base, 55 sec. -ft.

Mar.

0.9 

1.0 

.9 

.9 

.9

.9 

.8 

.9 

.8 

.8

.8 

1.1 

1.0 

.9 

.8

.8 

.8 

.7 

.7 

.7

.7 

.7 

.6 

.6 

2.2

2.8

1.8 

1.0 

1.0 

1.1 

1.0

Apr.

0.8 

.7 

.7 

.7 

.7

.7 

.7

.7 

1.3 

1.5

1.4 

1.2

1.2 

1.0 

.8

.7 

.7 

.5 

.6 

.5

.5 

.6 

.6 

.7 

.6

.6 

.6 

.7 

.6 

.6

Secondfoot-days

14.2 

19.8 

42.6

353". 3

49.6 

35.9 

30.6 

23.2 

18.8 

13.1 

11.6 

9.6 

11.5

280.5

May

0.7 

.7 

.7 

.8 

.8

.7 

.7 

.7 

.8 

.6

.6 

.5 

.5 

.5 

.5

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.5 

.5 

.5

Maximum

0.5 

1.6 

2.9

9.0

2.9 

2.5 

2.8 

1.5 

.8 

.5 

.5 

.4 

.5

2.9

June

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.4 

.4

.4 

.4 

.5 

.4 

.4

.4 

.4

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.5 

.4 

.3 

.4 

.3

July

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.4 

.5 

/ .5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.4 

.4

Aug.

0.4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3.8- 

.3 

.3

Sept.

0.4 

.3 

.3 

.3 

.4

.3 

.3 

h.4 

h.4 

a. 4

h.4 

h.4 

h.4 

h.4 

h.4

h.4 

a. 4 

h.4 

h.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.5 

.4

* «« ^e-fee?

0.3 0.46 28 

.4 .66 39 

.6 1.37 84

.2 .97 700

1.1 1.60 98 

1.0 1.28 71 

.6 .99 61 

.5 .77 46 

.5 .61 37 

.3 .44 26 

.3 .37 23 

.3 .31 19 

.3 .38 23

.3 .77 555

. Ho peak above base.

a No gage-height record; discharge interpolated, 

h Computed from staff -gage readings.
SANTA MARGARITA RIVER BASIN 

O'Neill ditch near Ysidora, Calif.

35

Location. Water-stage recorder, lat. 33 019'40", long. 117°19'45", 100 feet upstream from 

point of discharge into O'Neill Reservoir, and 6 miles northeast of Ysidora, San Diego 

County.

Records available. October 1930 to September 1950. 

Average discharge. 20 years, 3.52 second-feet.

Extremes. Maximum daily discharge during year, 14 second-feet Mar. 25; no flow during 

 several periods.

1930-50: Maximum daily discharge, 35 second-feet May 24, 1937; no flow during parts 

of each year.

Remarks. Records good. Ditch diverts water from left side of Santa Margarita River about 

b miles above station on Santa Margarita River at Ysidora.

Cooperation. Gage-height record and 201 discharge measurements furnished by Santa 

Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

Z 

5

4 

5

6 

7 

8 

9 

10

11

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

25 

27 

28 

29 

30 

31

Oct.

O

o

o

0 

.2

.8 

.5 

1.3 

1.0 

.8

.6 

.4 

.3 

.4

.8

.8 

.8 

1.7 

2.5 

2.9

2.7 

2.3 

1.7 

1.0 

.9

.5 

.4

.3

.4 

.3 

.2

Nov.

O 

0 

0 

0

.1

.1 

.1

.4

1.3

9.8 

10 

8.7 

6.3 

5.1

4.2

3.8 

3.7 

3.6 

3.2

3.0 

3.0 

3.2 

3.6 

3.7

4.4 

4.6 

4.5 

4.5 

4.7

Dec.

4.9 

5.3 

5.0 

4.8

4.6

4.8 

4.5 

5.4

6.0

6.1 

6.3 

6.5 

6.4 

6.4

8.4

8.8 

11 

9.7

7.7 

2.0 

2.8 

2.9 

2.6

2.6 

2.7 

2.8 

2.9 

2.9 

3.0

Jan.

2.9 

2.7 

2.7 

3.0 

3.0

3.0 

3.1 

3.4 

6.8

5.9 

11

11 

11 

11

10

0 

0

o 

o

0 

0 

0 

0

0 

0 

0

.1 

o

0

Feb.

O 

0 

0

o 

o

1.4 

3.0 

2.6 

2.5

2.5 

2.3 

2.0 

2.0 

1.8

1.8

1.9 

1.9 

5.3

6.2 

6.2 

6.1 

5.8 

6.3

5.8 

5.5 

5.7

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Ha

rnber. ...................................

lendar year 1949

uapv

ter yaar 1949-50 .......................

Mar.

5.4 

5.7 

6.1 

5.8 

5.5

5.4 

5.5 

5.6 

5.4

5.6 

5.4 

5.3 

5.0 

5.3

5.0

8.8 

7.4 

6.6

5.6 

6.2 

6.1 

5.8 

14

13 

11 

9.8 

9.7 

8.4 

8.1

Apr.

7.0 

6.5 

6.3 

6.2 

5.9

5.6 

5.5 

6.3 

12 

11

8.3 

7.8 

7.3 

6.8 

6.1

5.6

. 3.8 

3.1 

2.7

3.3 

3.5 

3.9 

4.8

4.7

4.4 

4.1 

4.3 

4.9 

4.6

Secondfoot-days

26.5 

105.0 

164.6

1,949.4

101.8 

82.9 

215.1 

171.1 

82.2 

15.3 

0 

0 

0

964.5

May

4.6 

3.7 

4.1 

4.6 

4.9

4.1 

3.6 

3.0 

2.3 

1.6

1.3 

1.3 

2.0 

2.2

1.8

2.3 

2.8 

2.9 

3.1 

2.7

2.6 

3.0 

3.0 

3.5 

2.6

1.4

1.6 

1.8 

1.3 

1.4 

1.1

Maximum

2.9

10 

11

18

11 

6.3 

14 

12 

4.9 

1.4 

0 

0 

0

14

June

1.0 

.9 

1.4 

1.3 

1.1

1.4

1.0 

.7 

.7 

.7

.8 

.5 

.4 

.4 

.3

.3

.6 

.6 

.3 

.2

.2 

.1 

.1 

.2 

.1

0 

0 

0 

0 

0

July

Minimum

0 

0 

2.0

0

0 

0 

5.0 

2.7 

1.1 

0 

0 

0 

0

0

Aug.

Mean

0,85 

3.50 

5.31

5.34

3.28 

2.96 

6.94 

5.70 

2.65 

.51 

0 

0 

0

2.64

Sept.

Runoff In 

acre-feet

53 

208 

326

3,870

202 

164 

427 

339 

163 

30 

0 

O 

0

1,910
36 SAN JUAN CREEK BASIN

San Juan Creek near San Juan Capistrano, Calif.

Location. Water-stage recorder, lat. 33°30 I 50", long. 117°37'40", in Mission Viejo Grant,

 at Urtega 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 1950.

Average discharge. 82 years, 14.4 second-feet.

Extremes. Maximum discharge during year, 3.6 second-feet Jan. 11 (gage height, 2.02 feet); 

no now during several periods.

1929-50: Maximum discharge, 13,000 second-feet Mar. 2, 1938, by slope-area method, 

determined by Corps of Engineers; no flow at times during most summers.

Remarks. Records fair. San Juan Mutual Water Co. diverted about 530 acre-feet from point 

50tT~feet above station during water year 1950.

Cooperation. Forty-four discharge measurements furnished by Orange County Flood Control

 District, through J. A. Bradley, flood-control engineer, and six discharge measurements 

furnished by Santa Margarlta Ranch (U. S."Navy) and Pauba Ranch.

Discharge, In second- feet, water year October 1949 to September 195O

Bey

1 

Z

3

4 

5

6 

7 

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. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

.3

.2 

.2 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 

.2 

.2 

.2

Dec.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.5 

.4

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Jan.

0.2 

.2 

.2 

.2 

.4

.5 

.2 

.9 

2.5 

2.2

2.4 

2.4 

2.1 

2.1 

2.2

2.0 

1.9 

2.0 

2.1 

2.0

2.0 

2.1 

2.1 

2.0 

2.1

2.1 

2.1 

2.1 

2.5 

2.4 

2.1

Feb.

2.1 

2.1 

2.0 

2.0 

1.9

2.6 

2.6 

2.6 

2.4 

2.4

2.5 

2.1 

1.9 

1.8 

1.7

1.6 

1.6 

1.5 

1.2 

.5

.4 

.4 

.4 

.9 

1.2

1.4 

1.4 

1.4

Month

Octo 

Hove

Dece

Ca

Jami 

Pebr 

Marc 

Apri

Itetf

June 

July 

Augu 

Sept

Wa

 ber. ...........-.-------.-----------.--

lendar year 194S 

sz*y

uary. ...................................

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

Bt......................................

ter year 1949-50 .......................

Mar.

1.4 

1.4 

1.4 

1.4 

1.5

1.1 

.5 

.5 

.4 

.4

.4

.3 

.3 

.3 

.3

. c 

.2 

.2 

.2

.2

.2 

.2 

.3 

.9

.5 

.4

.4

.3 

.3 

.3

Apr.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.4

.3

.3 

.2 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.2 

.2

Secondfoot -days

0 

3.1 

6.9

166.7

52.. 3 

46.6 

16.7 

7.6 

5.2 

3.0 

2.8 

2.2 

1.8

148.2

May

0.2 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2

.1 

.1 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1 

.1

Maxlaum

0 

.3 

.5

2.9

2.5 

2.6 

1.5 

.4 

.3 

.1 

.1 

.1 

.1

2.6

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

July

0.1 

.1 

.1 

.1 

.1

.1 

0 

0 

0

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 .1 

.1 .1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Hlnlaum

0 

0

.2

0

.2 

.4 

.2 

.2 

.1 

.1 

0 

0 

0

0

Aug.

0.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

0 

0

0 

0 

0 

0 

0

0

0

.1 

.1 

.1 

.1

Mean

0 

.10 

.22

.46

1.69 

1.66 

.54 

.25 

.17 

.10 

.09 

.07 

.06

.41

Sept.

0.1

.1

.1 

.1

.1

.1 

.1 .1 

.1

0 

0 

0

0 

0 

0

.1 .1

.1 

.1

0 

0 

0

0

.1 .1

0 

0

Runoff In 

acre-feet

0 

6.1 

14

331

104 

92 

33 

15 

10 

6.0 

5.6 

4.4 

3.6

294

Peak discharge (bage.. 20 see.-ft.) . Ho peak above base
SAN JUAN CREEK BASIN 37

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 S., 

K. 8 iff., on State highway bridge, 1.5 miles north of San Juan Capistrano.

Drainage area.--36.5 square miles.

Records available.--October 1930 to September 1950.

Average discharge.--20 years, 6.04 second-feet.

Extremes.--Maximum discharge during year, 3.8 second-feet Jan. 11 (gage height, 1.96 feet); 

no flow during most of year.

1930-50: Maximum discharge, 9,240 second-feet Feb. 6, 1937; no flow during part of 

each year.

Cooperation. Records furnished by Orange County Flood Control District, through J. A. 

Bradley, flood-control engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

.2

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

.1 .1 .1 .1

0

0 

0 

0 

0 

0

0 

0 

0

.1

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.4.1

0

.1

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

.2 

0 

0 

0

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

Lendar year 1949

ter year 1949-50 .......................

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0

.1 .1

0

Secondfoot-days

0 

.2 

.5

1.3

.6 

.3 

0 

.2 

.3 

0 

0 

0 

0

2.1

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

.1 

.1 .1

0 

0 

0 

0 

0 

0

Maximum

0 

.2 

.1

.4

.4 

2

0 

 1 

.1 

0 

0 

0 

0

.4

June July Aug. Sept.

Mini, " Mean fef*.*

 , \ 

00 0 

0 .01 .4 

0 .02 1.0

0 .004 2.6

0 .02 1.2 

0 .01 .6 

0,0 0 

0 .01 .4 

0 .01 .6 

00 0 

00 0 

00 0 

00 0

0 .01 4.2

207481 O - 52 - 4
38 ALISO CREEK BASIN

Aliso Creek at El Toro, Calif.

Location.--Water-stage recorder, lat. 33°37'15", long. 117 0 41 I 20", In Canada de los Allsos 

 (Jrant, on Second Street Bridge, at El Toro, Orange County. (Altitude of gage,-about 440 feet.

Drainage area.--8.5 square miles.

Records available. October 1930 to September 1950.

Average discharge.--20 years, 0.85 second-foot.

Extremes.--Maximum discharge during year, 85 second-feet Feb. 6 (gage height, 6.59 feet); 

no now during most of year.

1930-50: Maximum discharge, 1,950 second-feet Feb. 6, 1937; no flow most of each 

year.

Cooperation. Records furnished by Orange County Flood Control District, through J. A. 

Bradley, flood-control engineer.

Revisions (water years). W 961: 1941(M).

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0

o

0

o 

o 

o 

o 

.1

o 

o 

o 

o

0

o 

o 

o 

o 

o

0 

0. 

0 

0 

0

0

o

0 

0 

0

Dec.

o 

o 

o

0

o

o 

o 

o

0

o 

o

0 

0 

0

o

o 

o

0

.1

0 

0

o 

o 

o 

o

0 

0

o 

o 

o 

o

Jan.

0

o

0 

0

o 

o

0 

.03

o

.02

.02 

0

o

0 

0

0

o

0

o

0

o

0

o 

o

0

o 

o 

o

0 

0 

0

Feb.

0

o 

o 

o 

o

4.6

.1 

oO' 

.4

0 

0

o

0 

0

0

o 

o 

o 

o

0 

0 

0 

0

o 

o

0

o

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

ter year 1949-5O .......................

Mar.

o 

o 

o 

o

0

o 

o

0 

0

o 

o

0

o 

o

0 

0

o

0 

0

o

o 

o 

o 

.1 

o

0 

0

o 

o 

o 

o

Apr.

O 

O 

O 

O 

O

O 

O 

.1 

O 

O

O 

0 

O

o 

o

o

0

o 

o 

o

0

o 

o 

o

0

o 

o 

o 

o 

o

Secondfoot-days

0

.1 

.1

.38

.07 

5.1 

.1 

.1 

0 

0 

0 

0 

0

5.57

May

Maximum

0

.1 

.1

.1

.03 

4.6

.1 

O 

O 

0 

O 

0

4.6

June July

Minimum

°0 

0

0

o 

o 

o

0

o 

o

0 

0

0

o

Aug. Sept.

Mean Runoff in 

Hean i acre-feet

O O 

.003 .2 

.003 .2

.001 .7

.002 .1 

.18 10 

.003 .2 

. O03 . 2 

0 0 

0 0 

0 0 

0 0 

0 0

.015 11
PETERS CANYON WASH BASIN 39

San Diego Creek near Irvine, Calif.

Location. Water-stage recorder and concrete control, lat. 33°40'20", long. 117 0 47'10", 

 in San Joaquin Grant, 200 feet downstream from bridge on U.-S. Highway 101 and 1.5

miles west of Irvine, Orange County. Datum of gage is 102.86 feet above mean sea level.

Records available.--October 1949 to September 1950.

Extremes. Maximum discharge during year, 244 second-feet Feb. 6 (gage height, 2.38 feet), 

rrom rating curve extended above 110 second-feet on basis of logarithmic plotting; no 

flow during most of year.

Remarks . Records fair.

Cooperation. Five discharge measurements furnished by Orange County Flood Control Distrier, tnrough J. A. Bradley, flood-control engineer'.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

6.4 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

6.3 

.2 

0

1.7 

4.3 

0 

0 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.4

0 

0

Feb.

0 

0 

0 

0 

0

18 

.4 

0 

0

1.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

o

0 

0

0 

0 

0

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

lendar year 

ary

ter year 1949-50 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

1.1

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0 

0 

6.4

-

13.0 

19.5 

1.1 

0 

0 

0 

0 

0 

0

40.0

May

Maximum

0 

0 

6.4

-

6.3 

18 

1.1 

0 

0 

0 

0 

0 

0

18

June July

Minimum

0 

0 

0

-

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.21

-

.42 

.70 

.04 

0 

0 

0 

0 

0 

0

.11

Sept.

Runoff In 

acre-feet

0 

0 

13

-

26 

39 

2.2 

0 

0 

0 

0 

0 

0

80
40 SANTA ANA RIVER BASIN

Santa Ana River near Mentone, Calif.

Location. Water-stage recorder, lat. 34°06'40", long. l^OG'OO", in SW£ sec. 4, T. 1 S., 

K. a rf., near mouth of canyon, 0.4 mile upstream from Southern California Edison Co.'s 

Santa Ana River No. 3 power plant, 2 miles upstream from Mill Creek, and 3.5 miles 

northeast of Mentone. Datum of gage is 1,984.28 feet above mean sea level, datum of 

1929. Auxiliary water-stage recorder at Greenspot Bridge, 1 mile downstream.

Drainage area. 202 square miles, including area tributary to Baldwin Lake at head of Bear 

vaney.

Records available.--October 1914 to September 1950. 

i.b miles upstream, above Warm Spring Canyon.

July 1896 to September 1914- at site

Average discharge. 36 years (1914-50), 36.8 second-feet. Average combined discharge of 

santa Ana Kiver and canal, 36 years (1914-50), 94.0 second-feet.

Extremes (river only). Maximum discharge during year, 350 second-feet Feb. 7 (gage height 

not determined), includes 25 second-feet (estimated) in secondary channel; no flow 

during several months.

1896-1950: Maximum discharge, 52,300 second-feet Mar. 2, 1938, by slope-area method 

height, 14.3 feet); no flow at times in seme years.

Remarks. Records good. Storage at Bear Valley Reservoir (capacity, 72,000 acre-feet) and 

3Tve"rsions above station. Sum of discharge of river at this station and of canal bypassing this station is given in table on following page.

Revisions (water years). W 931: 1940.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

15 

14 

IS

16 

17 

18 

19 

20

21 

22

25 

24 

25

26 

27 

28 

29 

50 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

24

4.0 

0 

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0

o 

o

0 

0

0 

0 

0 

0 

0

o

0 

0 

0 

0

0 

0 

15 

134 

22

1.8 

.1 

0 

0 

0

0 

0 

0 

0 

0 

0

An.

0

o

0 

0 

0

0 

0 

1.0 

5.9 

.7

2.0 

7.3 

3.7 

1.3 

.4

3.2 

12 

25 

d21 

d.5

.2 

.1 

.1 

.1 

.1

.2 

.2 

.2 

1.9 

1.8 

.5

Feb.

0.3 

.4 

.3 

.2 

.2

97 

6207 

d46 

26 

19

16 

13 

12 

9.0 

6.7

5.4 

4.2

4.0 

4.0 

3.8

3.8 

3.8 

3.8 

3.5 

3.5

3.1 

2.8 

2.8

Month

Octo 

Hove

Deee

Ca

Janu 

Febr 

Mare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

 her. ...........---.---....-.-..-...----

lendar year 1949 

ary

h. ......................................

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

ter year 1949-50 .......................

Mar.

3.1 

2.6 

2.6 

d2.5 

2.6

3.1 

2.8 

2.6 

2.6 

2.8

2.8 

2.6 

2.8 

2.6 

2.8

2.5

2.0 

1.1 

1.1 

1.0

.9 

1.2

1.0 

1.1 

14

6.1 

4.2 

2.5 

2.6 

2.6 

2.6

Apr.

2.5 

l.S 

1.8 

2.0 

2.1

2.1 

2.1 

2.1 

4.9 

1.4

1.2 

1.2 

1.2 

1.4 

1.7

1.5 

1.1 

1.1 

1.1

1.1

1.1 

1.2 

1.2 

1.4

1.4

1.4 

1.4 

1.4 

1.1 

1.1

Secondfoot -days

0 

28.0 

172.9

1,154.9

89.4 

501.6 

87.4 

48.1 

14.7 

3.7 

0 

0 

0

945.8

Hay

0.9 

.9 

1.0 

.9 

.8

.7

.7 

.6 

.6 

.6

.6 

.6 

.6 

.4 

.4

.4 

.4 

.4 

.3 

.3

.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2 

.2

Maxima

0 

24 

134

134

25 

207 

14 

4.9 

1.0 

.3 

0 

0 

0

20?

June

0.2 

.2 

.2 

.2 

.1

.3 

.2 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

 July

Minima

O 

0 

0

0

0 

.2 

.9 

1.1 

.2 

.1 

0 

O 

0

0

tog.

Mean

0 

.93 

5.58

5.16

2.88 

17.9 

2.88 

1.60 

.47 

.12 

0 

0 

O

2.59

Sept.

Runoff in 

acre-feet

0 

5& 

343

2,290

177 

995 

173 

95 

29 

7.3 

0 

0 

0

1,380

Peak discharge (base. 150 aee.-ft.). Dee. 19 (7:45 a.m.) 170 sec.-ft.; Feb. 7 (5 a.m.) 35O aec.- 

ft.

d Doubtful gage-height record; discharge computed on basis of partly estimated gage height, 

e Includes estimated flow in secondary channel.
SANTA ANA RIVER BASIN 41

Combined discharge, In second-feet, of Santa Ana River and canal near Mentone, Calif. 

water year October 1949 to September 1950

Day

1 

Z 

3 

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

45 

44 

43 

43 

43

43 

43 

43 

42 

37

36 

35 

35 

34 

35

36 

37 

35 

36 

35

34 

34 

33 

32 

32

32 

33 

34 

32 

31 

31

Nov.

30 

30 

30 

30 

32

33

36 

40 

42 

67

43 

31 

27 

26 

25

24 

24 

24 

24 

24

24 

24 

24 

23 

22

23 

24 

23 

54 

31

Dec.

32 

34 

33 

30 

29

29 

27 

28 

26 

26

23 

20 

22 

22 

24

26 

25 

51 

157 

67

38 

35 

34 

33 

31

51 

30 

30 

29 

26 

27

Jan.

26 

26 

26 

24 

24

22 

23 

26 

31 

25

26 

32 

28 

25 

25

26 

21 

27 

38 

34

32 

32 

32 

53

30

28 

£9 

29 

41 

37 

32

Feb.

31 

32 

31 

31 

32

122 

229 

99 

79 

79

74 

61 

55 

52 

48

46 

46 

46 

46 

46

45 

44 

43 

43 

42

41 

41

4O

Month

Octo 

Novei 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

Bber . ........ ....---.--------------.-.

lender year 1949

ter year 1949-50 .......................

Mar.

41 

40 

40 

39 

39

39 

38 

38 

38 

38

39 

38 

37 

37 

37

36 

33 

36 

36 

37

37 

3T 

40 

33 

5T

40 

43 

45 

46 

45 

43

Apr.

44

45 

46 

45 

45

45 

44 

51 

60 

50

50 

47 

49 

49 

48

45 

43 

41 

40 

39

33 

39 

40 

38 

37

3,7 

3S 

38 

3T 

37

Secandfeot-dajra

1,138 

914 

1,077

17,160

830 

1,624 

1,229 

1,306 

1.072 

i;C68 

1,291 

1,245 

1,097

13,950

Hay

36 

36 

38 

38 

37

36 

36 

36 

35 

33

32 

32 

32 

42 

42

42 

40 

36 

33 

30

29 

23 

2S 

28 

28

55 

35 

35 

34 

34 

34

IfcXlBWB

45 

6T 

1ST

1ST

41 

223 

57 

6X1 

42 

41 

47 

47 

43

229

June

34 

34 

34 

32 

33

38 

39 

36 

3E 

35

36 

35 

34 

37 

37

37 

37 

36 

32 

31

30 

32 

33 

53 

56

36

4Q 

*1 

41 

33

July

42 

43 

44 

44 

46

47 

44 

41 

40 

40

44 

44 

44 

42 

42

42 

43 

42 

42 

41

41 

40 

41 

33 

S3

38 

38 

59 

39

40 

41

malwea51 

22 

2O

12:

21 

31 

33 

3T 

28 

3O 

38 

33 

31

20

Aug.

39 

37 

36 

33 

33

34 

34 

34 

34 

38

42 

42 

43 

44 

44

4-6 

43 

45 

47 

47

46 

«« 

49 

43 

43

43. 

S9 

38 

38 

5T 

38

Mean

36.7 

SO.,5 

34.7

47.0

2S.7 

58.Q 

33.6 

43.5 

34.6 

35.6 

41.6 

40.2 

36.6

38.2

Sept.

39 

40 

41 

41 

42

39 

36 

32 

31 

32

52 

31 

36 

37 

41

42 

36 

34 

32 

31

31 

31

35 

35 

3?

37 

39

42 

42 

43

BttuKff ta 

acr«-f*e*

2»2«& 

1,810 

2,1*0

34,040

1,770 

3,220 

2,440 

! 2,590 

2,130 

2,12O 

2.56O 

2,470 

2, ISO

27,690
42 SANTA ANA RIVER BASIN

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

Location. Water-stage recorder, lat. 34°04'00", long. 117°17'45", in San Bernardino

urant, 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 1950. 

Average discharge.--11 years, 14.1 second-feet.

Extremes. Maximum discharge during year, 300 second-feet Feb. 7; no flow during June, 

July, August, and part of September.

1939-50: Maximum gage height recorded, 6.50 feet Jan. 23, 1943; maximum discharge 

uncertain; no flow for many days each year.

Remarks.--Records good to Feb. 6, poor remainder of year. Storage at Bear Valley ReservoTr (capacity, 72,000 acre-feet). Many diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.4 

.8 

.8 

1.2 

1.2

.9 

.7 

.8 

2.0 

1.4

1.1 

1.7 

1.4 

1.9

1.2

.5 

1.0 

1.0 

1.8 

1.4

1.4 

1.4 

1.6 

1.7 

1.0

.4 

.7 

.9 

.5 

.5 

.2

Nov.

0.3 

.1 

.2 

.3 

1.3

1.9 

2.8 

4.4 

5.2 

46

4.8 

1.3 

.7 

2.4

1.9

1.9 

1.9 

1.7 

1.5 

1.6

1.6 

1.6 

1.7

1.5 

1.4

1.2 

1.2 

1.2 

1.1 

1.1

Dec.

2.3 

2.3 

2.3

1.9 

1.4

1.4 

1.5 

4.4 

2.6 

4.2

2.2 

2.3 

2.7 

1.9 

2.0

2.3 

2.2 

3.0 

36 

18

17 

7.7 

5.1 

4.0 

3.2

3.4 

3.4 

3.2 

4.8 

4.0 

4.4

Jan.

3.4 

3.6 

5.6 

4.4 

4.O

5,1 

5.4 

9.8 

13 

16

12 

10 

5.4 

5.3 

5.0

5.0 

4.2 

3.2 

3.4 

3.4

3.4 

3.6 

3.8 

5.2 

3.6

3.4 

4.2 

4.0 

7.4 

5.3 

4.6

Feb.

5.5 

5.5 

7.2 

6.2 

5.5

60 

150 

16 

6.7 

6.7

6.7 

8.2 

9.1 

9.1 

9.1

9.0 

9.0 

9.0 

9.0 

9.1

8.1 

7.4 

7.1 

7.1 

7.1*

7.O 

7.9 

8.5

Month

Octo 

Hove 

Decs

Ca

Janu 

Pebr 

Marc 

Aprl 

Mnv

June 

July 

Augu 

Sept

Wa

nber

lendar year 1949 

ary

i. ......................................

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

ter year 1949-50 .......................

Mar.

8.4

10 

10 

10 

10

8.3 

8.2 

5.8 

4.7 

4.0

4.0 

4.0 

3.6 

3.6 

2.9

2.7 

2.3 

2.3 

2.2

2.1

2.1 

2.1 

2.2 

2.5 

3.6

2.8 

2.7 

2.7 

3.0 

3.4 

5.6

Apr.

8.4 

6.2 

4.8 

4.0 

2.9

1.7 

.9 

2.1 

8.0 

6.6

6.3 

6.1 

4.7 

2.7 

2.3

1.6 

.8 

.7 

.6 

.5

.5 

.4 

.4 

.4 

.5

.6 

.6 

.6 

.6 

.6

Secondfoot-clays

34.5 

95.8 

157.1

1,083.4

175.7 

416.8 

141.8 

77.1 

30.7 

0 

0 

0 

1.0

1,130.5

May

0.6 

.6 

.6 

.7 

.8

.7 

.7

.9 

1.0 

.9

1.1

1.3 

1.0 

1.0 

1.2

1.6 

1.6 

1.8 

1.8 

1.2

1.7

1.7 

1.5 

1.1 

1.0

.8 

.6 

.5 

.3 

.2 

.2

Maximum

2.0 

46 

36

46

16 

150 

10 

8.4 

1.8 

0 

0 

0 

.8

150

June July

Minimum

0.2

.1 

1.5

0

3.2 

5.5 

2.1 

.4 

.2 

0 

0 

0 

0

0

Aug.

Mean

1.11 

3.19 

5.07

2.97

5.67 

14.9 

4.57 

2.57 

.99 

0 

O 

O 

.03

3.10

Sept.

0 

0 

0

o

0

.2 

.8 

0 

0 

0

0 

0 

O 

O 

0

0 

0 

0 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff In 

acre -feet

68 

190 

312

2,150

348 

827 

281 

153 

61 

0 

O 

O 

2.0

2,240 .

Peak discharge (base, IQO sec.-ft.). Nov. 10 (6:20 p.m.) 151 sec.-ft.; Feb. 7 (time unknown) 300 

sec.-ft.!

Note. After Feb. 6, most of flow In ungaged channel; discharge computed on basis of flow for 

gaged channel, frequent discharge measurements, weather records, and records for nearby stations.
SANTA ANA RIVER BASIN 43

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

Location. Water-stage recorder, lat. 33°57'55", long. 117°27'55", in Jurupa (Stearns) 

urant, at Pedley Road Bridge, 3.3 miles northwest of Arlington, Riverside County. Datum of gage, 669.87 feet above mean sea level (levels by Riverside County engineer).

Records available.--January 1929 to September 1950.

Extremes. Maximum discharge during year, 306 second-feet Feb. 6 (gage height, 3.34 feet); 

minimum daily, 39 second-feet Apr. 5.

1929-50: Maximum discharge, 100,000 second-feet Mar. 2, 1938, by slope-area method; 

minimum daily, 20 second-feet on several days during August, September 1947.

Remarks. Records fair except those for periods of doubtful gage-height record, which are 

poor. Considerable diurnal fluctuation occurs throughout season of low flow. Storage 

in Bear Valley Reservoir (capacity, 72,000 acre-feet). Many diversions for irrigation 

in basin above station. The Metropolitan Water District of Southern California discharged 25,268 acre-feet of Colorado River water into Santa Ana River above station 

during October to December and April to September.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

68 

66 

65 

63 

63

63 

65 

65 

65 

65

70 

65 

70 

68 

72

77 

73 

77 

79 

73

77 

70 

73 

70 

72

70 

75 

77 

77 

79 

79

Nov.

81 

75 

81 

83 

85

87 

85 

91 

87 

122

81 

73 

70 

70 

72

72 

72 

73 

73 

73

73 

75 

73 

77 

72

73 

70 

75 

73 

72

Dec.

77 

73 

81 

77 

79

81 

79 

89 

79 

77

75 

75 

73 

73 

75

75 

75 

77 

119 

91

87 

89 

87 

95 

87

91 

93 

91 

89 

91 

87

Jan.

69 

57 

d56 

d56 

d56

d57 

57 

72 

71 

d57

d60 

d58 

d50 

d48 

344

43 

43 

43 

40 

41

42 

42 

42 

42 

42

42 

42 

42 

52 

42 

41

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Hay 

June 

July 

Augu 

Sept

ffa

 bar....... ..................

lendar year 1949 

&ry .

e»ber ........................

ter year 1949-50 ............

Feb.

41 

44 

43 

42 

42

127 

148 

47 

46 

52

49 

44

44 

44

44 

43 

44 

43 

46

43 

45 

51 

57 

55

49 

50 

49

Seoondfoot-days

2,19] 

2,33< 

2,58

20,35(

1,54 

1,47

1,53:

2,212 

3,24 

3,10 

2,42 

2,24 

1,61

26,51

Peak disoharge (base, 500 sec. -ft.). No pe

t Discharge from Metropolitan Water Distric

Mar.

51 

51 

53 

55 

50

53

51 

51 

49 

53

53 

50 

50 

49 

49

47 

46 

44 

42 

43

67 

42 

41 

42 

74

50 

49 

49 

45 

42 

42

Apr.

44 

42 

42 

42 

39

41 

42 

41 

52 

42

41 

41 

40 

58 

110

106 

103 

103 

97 

95

97 

97 

97 

99 

95

97 

101 

99 

99 

110

Maximum

79 

) 122 

119

5 127

3 72 

3 148

5 74 

110 

3 116

3 114

3 89 

3 81 

3 72

= 148

May

106 

114 

114 

114 

106

106 

103 

99 

93 

93

93 

91 

101 

97 

103

106 

103 

108 

106 

108

108 

110 

116 

106 

108

103 

103 

108 

101 

110 

103

Minimum

63 

70 

73

22

40 

41 

41 

39 

91 

91 

66 

65 

46

39

June

101 

103 

110 

112 

110

110 

114 

108 

103 

97

97 

91 

97 

91 

93

99 

101 

101 

97 

103

106 

114 

110 

114 

108

110 

108 

101 

101 

95

Mean

70.7 

78. C 

83. E

55.6

50. C 

52. £ 

49. E 

73.7 

105 

104 

78.2 

72.3 

53.7

72.6

July

89 

83 

79 

75 

81

89 

83 

89 

89 

89

83 

79 

77 

77 

77

83 

79 

75 

85 

72

72 

70 

66 

73 

73

72 

72 

72 

73 

75 

77

Aug.

77 

79 

81 

77 

77

75 

75 

77 

77 

77

81 

77 

65 

66 

65

65 

65 

66 

66 

66

66 

66 

66 

70 

72

73 

75 

77 

75 

73 

73

Runoff 

in 

acre -feet

4,350 

4,640 

5,130

40,380

3,070 

2,930 

3,040 

4,390 

6,430 

6,160 

4,820 

4,440 

3,190

52,590

Sept.

72 

70 

72 

68 

68

68 

55 

46 

48 

47

48 

48 

47 

49 

50

51 

53 

54 

51 

50

50 

49 

49 

50 

50

49 

49 

49 

50 

50

Inflow 

in 

acre -feet t

2,460 

2,380 

2,492

12,001

0 

0 

0 

2,268 

4,304 

4,154 

3,074 

2,691 

1,445

25,268

ak above baae. 

t of Southern California aqueduct, included in figures

given in preceding columns. Records furnished by that agency.

d Doubtful gage-height record; discharge computed on basis of weather records and records for station below Prado Dam, near Prado.
44 SANTA ANA RIVER BASIN

Santa Ana River at Haraner Avenue, near Corona, Calif.

Location.--Water-stage recorder, lat. 33°56'50", long. 117°33'30", in Jurupa Grant, at 

namner Avenue Bridge, 5 miles north of Corona, Riverside County. Altitude of gage, 

about 570 feet (from topographic map).

Records available.--May 1930 to December 1950 (irrigation seasons only).

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

Storage in Bear Valley Reservoir. Many diversions for irrigation in basin above station. Plow past station includes water imported from Colorado River (see Santa Ana 

River at Riverside Narrows, near Arlington).

Cooperation. Twenty-five discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, January to December 1950

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

26

29

30

31

Jan.

_

_

_

_

-

tei

.

_

-

_

.

«

_

-

_

_

_

_

-

.

_

.

-

-

_

t57

-

-

-

Feb.

.

_

_

_

-

.

_

_

-

_

_

_

_

-

_

-

-

.

-

_

_

t49

t78

-

_

-

.

-

-

-

Mar.

t47

Apr.

_

_

_

.

-

_

_

_

_

-

_

_

_

t52

-

_

-

-

tl!7

-

_

-

_

-

tl!5

_

.

113

117

115

-

May

117

123

125

121

119

115

1O9

106

102

10O

98

100

102

106

104

108

109

113

113

117

119

113

111

109

106

106

1O4

106

106

104

104

Month

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

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

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

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

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

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

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

December 1-5. ..............................

The period. ..............................

June

104

102

1O2

1O6

106

104

104

104

104

104

102

102

104

106

104

108

109

108

106

104

104

108

108

108

106

104

1029i-.

96

96

-

July

79

83

83

79

83

85

85

85

85

88

85

85

83

83

83

81

85

77

79

79

79

79

79

83

83

79

77

77

77

81

83

Aug.

81

83

79

77

77

74

74

72

72

72

74

74

68

68

66

66

a66

a 66

a65

a65

a65

65

65

68

72

74

72

74

74

70

74

Second- maximum foot -days "axm 

3,395 125

3 121 3.09

2^532 88

2,212 83

1,737 77

1 295 59

1^347' 72

240 53

-

Sept.

74

72

77

76

76

72

64

47

49

51

53

54

54

54

58

58

58

56

53

49

53

53

51

47

56

54

53

53

56

56

~

Oct.

58

58

58

54

58

58

58

59

45

35

37

35

34

35

35

35

35

34

31

52

37

37

37

38

38

37

38

38

38

38

35

Nov.

34

32

32

34

35

35

35

37

38

31

32

38

44

7£

46

41

43

49

59

70

61

58

54

53

47

44

44

47

49

53

-

Dec.

47

47

46

47

53

t48

-

-

-

-

.

-

-

-

-

.

-

-

-

-

.

-

-

-

-

.

-

-

t42

-

**

«*« *an »£«£

98 110 6,730

96 104 6,190

77 81.7 5,0£O

65 71.4 4,390

47 57.9 3,450

31 41.8 2,570

31 44.9 2,670

46 48.0 476

31,500

t Result of discharge measurement.

a No gage-height record; discharge computed on basis of recorded range in -stage and records for 

other stations on same stream.
SANTA ANA RIVER BASIN 45-

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

Location.--Water-stage recorder, lat. 33°55 I 30", long. 117°35'40", in Jurupa Grant, at

Auourndale Bridge, 2 miles upstream from Temescal Creek and 4 miles northeast of Corona, 

Riverside County.

Records available. May 1930 to December 1950 (irrigation seasons only).

Remarks. Records fair. Storage in Bear Valley Reservoir. Many diversions for irrigation 

IfTFasin above station. Plow past station includes water imported from Colorado River 

(see Santa Ana River at Riverside Narrows, near Arlington). Water diverted into Durkse 

ditch, a quarter of a mile above station, bypasses station; measurements of ditch from 

October 1949 to December 1950 are as follows:

Date

Oct. 4

25

Nov. 7

14

21

Dec. 1

Apr. 25

May 4

Secondfeet

8.2

5.1

7.6

8.2

7.6

8.7

12.1

9.7

Date

May 15

23

29

June 5

13

20

27

July 5

Secondfeet

5.8

10.8

11.1

10.3

10.2

9.0

9.0

6.7

Date

July 12

19

25

Aug. 2

8

15

22

29

Secondfeet

7.2

7.4

9.5

7.0

1.43

1.20

1.29

1.33

Date

Sept. 5

13

18

25

Oct. 1

17

Dec. 5

Secondfeet

1.28

1.38

1.35

1.32

1.23

1.22

1.20

Cooperation. Twenty-four discharge measurements furnished by Orange County Flood Control 

District, through J ft. Bradley, flood-control engineer.

Discharge, in second-feet, January to December 1950

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

EO

21

22

23

24

25

26

27

26

29

30

31

Jan.

.

_

_

_

-

t88

_

-

_

-

^

.

_

_

-

_

_

_

.

-

_

_

_

,

-

_

T67

.

_

_

-

Feb.

T85

Mar.

t62

Apr.

_

_

_

_

-

_

_

_

.

-

_

_

t59

-

_

_

_

T140

-

_

_

,

t!03

_

_

T99

108

107

-

May

110

119

116

121

124

121

121

116

113

110

108

107

104

104

104

104

112

110

118

118

118

119

113

110

107

104

100

101

107

107

107

Month

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

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

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

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

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

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

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

December 1-5. ..............................

The period. ..............................

June

108

110

101

104

108

110

112

104

104

101

97

95

100

100

101

108

106

104

102

104

100

104

102

102

100

97

98

91

92

92

-

July

Secondfoot-days

3,453

3,057

2,541

2,458

1,950

1,560

1,816

325

-

83

88

88

83

87

88

88

92

87

90

88

83

85

87

80

78

81

74

79

74

75

75

76

78

81

d80

79

78

d79

79

78

Aug.

79

80

d81

83

85

88

81

78

83

75

75

81

80

83

84

83

81

78

81

79

78 74

76

74

75

75

79

78

76

74

81

Maximum

124

112

92

88

76

64

79

69

-

Sept.

72

74

76

72

74

76

71

61

61

59

60

67

60

61

61

61

66

64

59

59

61

62

66

65

66

67

62

64

61

62

-

Oct.

62

61

64

60

59

58

58

61

56

48

50

50

45

48

48

45

44

45

44

45

48

48

46

46

43

48

45

46

45

45

49

Nov.

49

49

45

45

46

46

50

50

50

48

50

52

61

70

60

60

59

64

67

76

74

79

72

72

72

70

71

71

69

69

-

Dec.

64

69

64.

64

64

t66

-

-

-

-

_

-

-

-

-

.

-

-

-

-

_

-

-

_

-

.

-

-

t56

-

-

Mini *an £*.£

100 111 6,850

191 1O2 6,060

74 82.0 5,040

74 79.3 4,880

59 65.0 3,870

43 50.3 3,090

45 60.5 3,600

64 65.0 645

34,040

t Result of discharge measurement.

d Doubtful gage-height record; discharge Interpolated.
46 SANTA ANA RIVER BASIN

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

Location. Water-stage recorder, lat. 33°53'00", long. 117°38'30", in La Sierra Grant, 

i.Ybu 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 1950, January 1919 to November 1940, and for

 irrigation seasons, May to November 1941. 1942, 1945-50 at site 3 miles downstream, 

published as Santa Ana River near Prado (see following page).

Average discharge. 31 years (1919-50), 142 second-feet.

Extremes. Maximum discharge during year, 455 second-feet Feb. 6 (gage height, 3.54 feet); 

minimum daily, 59 second-feet Sept. 22.

1940-50: Maximum discharge, .2,260 second-feet Dec. 24, 1940 (gage height, 3.20 

feet); minimum daily, 35 second-feet Aug. 18, Sept. 1, 1948.

Remarks. Records fair. Storage in Bear Valley Reservoir. Many diversions for irrigation

 IrTTTasin above station. Plow past station includes water imported from Colorado River 

(see Santa Ana River at Riverside Narrows, near Arlington). Discharge regulated by 

Prado flood-control dam.

Cooperation. Eight discharge measurements furnished by Corps of Engineers; forty by Orange 

bounty Flood Control District-, through J. A. Bradley, flood-control engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

80 

82 

81 

78 

82

84 

86 

86 

84 

86

84 

84 

84 

86 

86

90 

94 

94 

94 

96

98 

98 

98 

96 

96

94 

94 

94 

94 

98 

94

Nov.

98 

96 

98 

98 

96

94 

96 

96 

100 

121

136 

110 

102 

96 

98

94 

90 

92 

98 

98

100 

104 

104 

102 

104

100 

100 

102 

102 

100

Dec.

102 

100 

102 

106 

102

102 

104 

116 

123

116

110 

108 

110 

112 

114

116 

116 

123 

191 

170

118 

129 

131 

131 

134

129 

131 

143 

150 

157 

150

Jan.

150 

116 

110 

108 

114

114 

108 

112 

176 

116

108 

154 

123 

104 

106

102 

98 

96 

96 

94

94 

94 

94 

94 

92

100 

108 

104 

138 

112 

106

Feb.

110 

108 

108 

112 

112

270 

341 

177 

114 

123

136 

116 

108 

108 

104

102 

98 

98 

100 

104

102 

104 

106 

110 

110

106 

100 

96

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

mber. ...........------ ......--.---.-.

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

96 

96 

102 

110 

110

100 

96 

92 

92 

92

90 

88 

86 

88 

86

86 

86 

86 

86 

84

84 

91 

80 

85 

136

101 

92 

92 

82 

84 

86

Apr.

77 

75 

75 

77 

75

75 

72 

80 

102 

94

84 

78 

77 

77 

114

123 

121 

131 

136 

131

134 

136 

136 

131 

131

129 

125 

125 

123 

123

Secondfoot-days

2,775 

3,025 

3,846

31,968

3,440 

3,483 

2,865 

3,167 

4,081 

3,519 

2,702 

2,545 

2,152

37,600

May

127 

127 

136 

140 

145

143 

143 

136 

134 

136

134 

123 

116 

118 

125

127 

131 

134 

134 

131

134 

131 

131 

136 

134

136 

131 

125 

129 

127 

127

Maximum

98 

136 

191

201

176 

341 

136 

136 

145 

129 

100 

94 

94

341

June

129 

121 

121 

121 

121

118 

118 

118 

118 

121

114 

114 

116 

116 

116

114 

118 

118 

123 

121

121 

121 

121 

121 

121

118 

114 

106 

100 

100

July

100 

90 

86 

86 

90

88 

84 

84 

88 

88

90 

90 

90 

92 

94

92 

96 

90 

90 

86

88 

84 

82 

82 

82

82 

80 

78 

80 

84 

86

Minimum

78 

90 

100

37

92 

96 

80 

72 

116 

100 

78 

72 

59

59

Aug.

86 

86 

88 

86 

86

84 

82 

78 

78 

77

80 

80 

78 

80 

82

82 

77 

78 

78 

84

78 

78 

72 

75 

78

84 

90 

90 

88 

88 

94

Mean

89.5 

101 

124

87.6

111 

124 

92.4 

106 

132 

117 

87.2 

82.1 

71.7

103

Sept.

94 

94 

94 

88 

86

82 

78 

67 

64 

72

72 

72 

72 

68 

68

72 

68 

67 

65 

64

60 

59 

60 

64 

68

70 

67 

67 

65 

65

Runoff In 

acre-feet

5,500 

6,000 

7,630

63,400

6,820 

6,910 

5,680 

6,280 

8,090 

6,980 

5,360 

5,050 

4,270

74,570
SANTA ANA RIVER BASIN 47

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 1942, May 1945 to December 1950 (Irrigation 

seasons oniy since October 1940).

Extremes. 1919-50: Maximum discharge, 100,000 second-feet (estimated) Mar. 3. 1938 (gage 

neignt, 17.3 feet, site and datum then In use, from floodmarks In gage well}; minimum, 

25 second-feet Aug. 18, 1929, Aug. 24, 1936.

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

Storage In Bear Valley Reservoir, diversions for Irrigation, and regulation by Prado 

flood-control dam above station. Plow past station Includes water Imported from Colorado River (see Santa Ana River at Riverside Narrows, near Arlington).

Cooperation.--Forty-two discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Revisions (water years). W 881: 1938.

Discharge, in second-feet, January to December 1950

Day

1

Z

3

4

5

6

7

8

9

10

1112

13

14

15

16

17

18

19

20

81

ZZ

83

84

85

26

87

28

89

30

31

Jan.

_

.

-

-

-

tlOl

-

.

_

-

_

_

_

_

-

_

_

_

_

-

.

-

-

.

-

_

tee

.

.

_

-

Feb.

till

_

_

-

Mar.

.

-

-

-

-

_

.

_

_

-

_

_

_

.

-

.

_

.

_

-

_

_

.

_

-

_

_

_

_

91

90

Apr.

92

92

90

87

87

88

84

89

115

107

98

94

91

90

128

144

143

146

146

149

148

148

152

144

143

142

138

140

137

137

Hay

138

137

142

140

140

137

140

140

136

131

125

126

131

132

134

138

138

138

137

137

143

144

144

143

140

140

140

143

143

142

148

Month

Apr! 1. ......................................

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

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

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

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

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

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

June

138

131

130

128

128

126

125

128

130

128

128

126

126

125

124

124

124

124

121

117

118

121

122

122

122

119

118

112

107

104

July

Secondfoot-days

3,589

4,281

3,696

2,758

2,635

2,307

1,889

2 t 1 J.ey ftQ

497

-

97

96

97

96

97

97

94

99

99

101

102

98

91

85

86

81

85

80

80

82

80

81

82

84

87

87

80

76

82

86

90

Aug.

91

92

91

92

91

91

92

88

82

76

71

74

80

87

90

87

86

82

86

87

86

86

81

81

81

80

84

86

85

84

85

Maximum

152

144

138

102

92

96

75

104

A7 O /

-

Sept.

86

88

93

96

91

91

94

80

74

78

76

78

78

a78

a78

a75

a72

71

70

68

65

64

64

68

71

73

70

71

72

74

-

Oct.

75

74

74

71

67

65

67

68

62

53

59

59

58

56

54

52

50

50

50

51

55

57

57

57

60

62

68

65

65

67

67

Nov.

61

54

49

52

55

55

58

60

62

57

58

62

78

104

85

71

67

72

79

92

90

88

86

85

85

84

85

85

85

85

-

Dec,

80

78

a82

85

87

85

_

_

-

_

teo

_

_

7

_

_

_

t79

_

_

-

.

-

t79

-

.

t73

_

-

Minimum Mean *£%£

84 180 7,120

125 138 8,490

104 123 7,330

76 89.0 5,470

71 85.0 5,830

64 76.9 4,580

50 60.9 3,750

49 73.0 4,340

78 82*6 986

47,300

t Result of discharge measurement. 

a. No gage-height record; discharge computed on basis of records for station below Prado Dam, near 

Prado.
48 SANTA ANA RIVER BASIN

Santa Ana River at Santa Ana, Calif.

Location. Water-stage recorder, lat. 33"45'00", long. 117°54'20", in Las Bolsas Grant 

aTTTfth Street Bridge in Santa Ana, Orange County, and 2 miles downstream from Santiago Creek. Altitude of gage, about 80 feet.

Records available. January 1923 to September 1950. 

Average discharge. 27 years, 23.8 second-feet.

Extremes. Maximum discharge during year, 666 second-feet Feb. 6 (gage height, 4.55 feet), 

rrora rating curve extended above 170 second-feet by logarithmic plotting; no flow 

during most of year.

1923-50: Maximum discharge, 46,300 second-feet Mar. 3, 1938 (gage height, 10.20 

feet, former site and datum), by slope-area method; no flow for several months each 

year.

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

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. Seven discharge measurements furnished by Orange County Flood Control District, tnrough J. A. Bradley, flood-control engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct. Nov.

O 

0 

0 

0 

0 

o 

o

0

o

0

1.7 

O 

O 

0 

O

O

o

0

o

0

0 

0

o 

o 

o

o

0

o 

o 

o

Dec.

o 

o

0

o

0

o

0 

0 

0 

0

ao 

ao 

aO 

aO 

ao

aO 

aD

3.2

69 

.2

.3 

5.8 

8.4 

7.7 

5.4

.3

O 

0 

0 

0 

0

Jan.

o

0 

0

o

0

0 

0 

1.5 

41 

2.5

2.6 

17 

2.9 

.3

0

0 

0 

0 

0

o 

o

0 

aO 

aO 

aO

O 

0

0

.1

0

o

Feb.

0 

0

o

0 

0

101 

9.7 

5.9 

.2

l.o

.1 

0 

0 

0

o

0

o

0 

0 

0

0

o 

o 

o

0

o

0 

0

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

ber. ........ ...........................

 ber. ...................................

 ber. ....,......--.-.---...----- -------

lendar year 1949 

&x*y

h. ......................................

ter year 1949-50 .......................

Mar.

o 

o

0

o

0

o

0 

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0

o

0 

0 

0 

.3 

2.7

0 

0

o

0

o

0

Apr.

O 

0

o 

o 

o

o

0 

8.3 

18 

.4

.1

0 

0 

0

.1

.5 

.1

.5 O"

0

0 

0 

0

o

0

0 

0 

0 

0

o

Secondfoot-days

0

1.7 

99.1

101.3

67.9 

117.9 

3.0 

28.0 

1.4 

O 

.4 

1.2 

.8

321.4

May

0 

0 

0

o

.1

0

o

0

o

0 

0

o 

o

0 

0

0 

.2 

0 

0

o 

o

0

.1

.2 

0

.3

0 

.2 

.3

0 

0

Haxlnma

O 

1.7 

69

69

41 

101 

2.7 

18 

.3 

0 

.2 

.2 

.2

101

June July

Minima

o

0

0

0

o

0

o 

o 

o 

o

0

0

o

o

0 

O 

0 

0 

0

0

o 

o

0 

0

0 

0 

0 

.2

.1

0

o

0 

0 

0

o 

o 

.1

0

o

0 

0 

0 

0 

0 

0

Aug.

0 

0 

0 

0 

.2

.1 

O

0

.1

0

o 

o

0 

0 

0

.1 .1

0 

0 

0

o

0 

0

.1

0 

0

.1 

.1 

o

.2

.1

Mean

o

.06 

3.20

.£8

2.19 

4.21 

.10 

.93 

.05 

0 

.01 

.04 

.03

.88

Sept.

0.1 

.2 

0 

0 

0

0 

0 

0 

0 

O

O 

0 

0

o

0

.1

0 

0

.1

0

.1

0

o

.1

0

0 

0 

0

.1 

o

Runoff In 

acre-feet

0 

3.4

197

201

135 

234 

6.0 

56 

2.8 

0 

.8 

2.2 

1.6

639

(base, ISO see.-ft.).--Dee. 19 (about 7 a.m.) 364 sec.-ft.; Jan. 9 (1 a.m.) 297 

(12 q.) 666 sec.-ft.; Apr. 8 (11 p.m.) 218 sec.-ft..

Peak discharge 

sec.-ft.; Feb.

a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for Santiago Creek at Santa Ana.
SANTA ANA RIVER BASIN 49

Oreenspot pipe line near Mentone, Calif.

Location.--Staff gage and sharp-crested weir, lat. 34°06'20", long. 117°05'55", in SW^ sec. 

37"T. 1 S., R. 2 W., at point of diversion from forebay. of Southern California Edison 

Co.fe Santa Ana River No. 3 power plant, 3 miles northeast of Mentone.

Records available. September 1911 to September 1950. August 1897 to December 1901, April 

isoa to December 1904 (fragmentary), about 1 mile upstream near former point of diversion from Santa Ana River; records not entirely comparable.

Average discharge.--39 years (1911-50), 6.07 second-feet.

Extremes.--Maximum daily discharge during year, 9.0 second-feet Oct. 1-28, Mar. 23-27, May 

 T5To Sept. 30; no flow Jan. 25 to Feb. 7.

1911-50: 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 aecond-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

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 

8.3 

7.6 

7.6

Nov.

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.6 

7.6

Dec.

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

4.8 

7.6

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.6 

7.6 

7.6

Jan.

.6 

.6 

.6 

.6 

.6

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

7.6 

7.6 

7.6

5.5 

2.4 ' 0 

1.6 

7.6

7.6 

7.6 

7.6 

2.8 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

0 

0 

3.8 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

6.0 

6.0 

6.0

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

6.0 

6.0 

6.0 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

6.0 

7.4 

9.0 

9.0 

9.0

9.0 

9.0 

2.9 

4.1 

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 

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

Secondfoot-days

275.5 

228.0 

232.8

2,513.4

156.7 

123.8 

199.4 

210.0 

263.2 

270.0 

279.0 

279.0 

270.0

2,787.4

May

7.0 

7.0 

7.0 

7.0 

7.8

8.3 

8.3 

8.3 

8.3 

8.3

8.3 

8.3 

8.3 

8.3 

8.7

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 

7.6 

7.6

9.0

7.6 

6.0 

9.0 

7.0 

9.0 

9.0 

9.0 

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

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

Minimum

7.6 

7.6 

4.8

0

0 

0 

2.9 

7.0 

7.0 

9.0 

9.0 

9.0 

9.0

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

3.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0 

9.0

Mean

8.89 

7.60

7.51

6.89

5.05 

4.42 

6.43 

7.00 

8.49 

9.00 

9.00 

9.00 

9.00

7.64

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

546 

452 

462

4,980

311 

246 

396 

417 

522 

536 

553 

553 

536

5,530
50 SANTA ANA RIVER BASIN

Mill Creek near Craftonville, Calif.

Location. Water-stage recorder, lat. 34°05'20", long. 117°02'25", in NE^NE-Jr sec. 13, T.

 1 S., R. 2 W., at State highway bridge, 0.2 mile northeast of Southern California Edison 

Co.>s Mill Creek Nos. 2 and 3 powerhouse, 5 miles upstream from mouth, and 5 miles northeast of Craftonville. Datum of gage is 2,915 feet above mean sea level (Southern 

California Edison Co. datum).

Drainage area. 39.9 square miles.

Records available. January 1919 to September 1938, October 1947 to September 1950.

Average discharge. 22 years (1919-38, 1947-50), 14.1 second-feet. Average combined dis-

 cnarge, river and canals, 22 years (1919-38, 1947-50), 36.5 second-feet.

Extremes. Maximum discharge during year, about 700 second-feet Feb. 6; minimum daily, 

u.i second-foot on many days.

1919-38, 1947-50: Maximum discharge, 18,100 second-feet Mar. 2, 1938; all water 

diverted into Mill Creek power canal No. 1 at various times.

Remarks. Records poor. Mill Creek power canals Nos. 1,2, and 3 divert from points 100 

reet above, 3 miles above, and 6 miles above station, respectively. Combined flow of 

Mill Creek, Mill Creek power canal 1, and Mill Creek power canals 2 and 3, near Craftonville , is given in table on following page.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6

e

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 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.1 

.1 

.1

Nov.

0.1

.1 

.1 

.1 

.1

.1

.1 

.1

8.6

2.2 

.3 

.3

.2

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.2

.2 

.2 

.1 

.1 

.1

Dec.

0.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

6.4 

40 

.8

.6 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.1 

.1 

.2

Jan.

0.2 

.2 

.2 

.2 

.2

.2

.3

.5

.1

.3

.3

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1

.1 

.1 

.1

.1

Feb.

0.1 

.1

.1 

.1 

.1

d50 

d20 

d!5 

d8.4 

7.2

5.8 

5.2 

4.0 

4.8 

2.6

.9 

.4

.1 

.1 

.2

.2 

.2 

.2 

.2 

.2

.2 

.4 

.7

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

ber. ....................................

mber. ...................................

lendar year 194 

ary

3 .......................

ter year 1949-50 .......................

Mar.

0.7 

.8 

.5

.1 

.1

.1 

.1 

.1 

.5 

.1

.1 

.1 

a.l

a.l 

a.l

a.l 

a.l 

a.l 

a.l 

a. 2

a. 2 

a. 2 

a. 2 

1.3 

3.3

.2 

.2 

.2 

d.2 

.3 

.4

Apr.

0.3 

.3

.3 

d.3 

d.3

.3 

d.3 

2.0 

0.5.0 

d.2

d.2 

d.2 

.2 

.2 

.2

.2 

.4 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Secondfoot -day s

4.0 

14.4 

51.3

212.8

4.7 

127.5 

10.9 

11.5 

6.8 

5.1 

10.6 

4.8 

7.2

258.8

May

0.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.3 

.3

Maximum

0.2 

8.6 

40

4O

.5 

50 

3.3 

3.0 

.3 

.2 

3.0 

.4 

2.6

50

June

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.2 

.2

July

Minimum

0.1.1.1

.1

.1 .-1 

.1

.2 

.2 

.1 

.1

.1 

.1

.1

0.2 

.1 

.2 

.2 

.2

.1 

a.l 

a.l 

a.l 

a.l

.1 

.1 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

1.2 

d2.2 

d3.0

.1 

a.l 

a.l 

a.l 

a.l 

a.l

Aug.

aO.l 

a.l 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.4

.4 

d.2 

d.2 

d.2 

d.2

d.2 

d.2 

.2 

.2 

.2

.2 

.2 

.1 

.1

.1 

.1

Mean

0.13 

.48

1.65

.58

.15 

4.55 

.35 

.38 

.22 

.17 

,34 

.15 

.24

.71

Sept.

0.1 

.1 

.1 

.1 

.4

2.6 

.3 

.2 

.2 

.2

.2 

d.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Runoff in 

acre-feet

7.9 

29 

102

423

9.3 

253 

22 

23 

13 

10 

21 

9.5 

14

514

Peak discharge (base, 10 sec. -ft.). Nov. 10 (1 a.m.) 49 sec. -ft.; Dec. 19 (2:30 a.m.) 350 sec. -ft.

Feb. 6 ttlme unknown} afcout TOO sec.-ft.; Sept. 6 (4:30 p.m.) 44 sec.-ft.

a Mo gage-height record; discharge computed on basis of weather records and records for Mill Creek 

near Mentone and Santa Ana River near Mentone.

d Doubtful gage-height record; discharge computed as explained in footnote a.
SANTA ANA RIVER BASIN 51

Combined discharge, In second-feet, of Mill Creek and canals near Craftonvllle, 

water year October 1949 to September 1950

Day

1

2

Z

4

5

6

7

8

9

1U

11

12

13

14

15

16

17

18

19

20

21

22

23

24

26

27

28

30

31

Oct.

14

13

14

14

14

14

14

14

15

14

13

13

13

13

13

14

15

14

15

14

14

14

14

14

14

14

14

14

13

13

13

Nov.

13

13

13

13

13

13

13

13

14

30

21

19

18

17

16

16

14

13

13

13

13

14

15

15

15

14

15

14

14

14

Dec.

14

14

14

14

14

13

10

12

15

14

14

15

15

15

15

15

15

24

60

17

18

17

17

16

16

16

16

16

15

16

16

Jan.

15

14

9.8

13

15

15

15

15

13

15

15

16

15

15 ' 15

15

16

16

16

16

16

16

16

16

16

15

15

15

18

16

16

Feb.

15

15

15

15

16

72

42

27

19

21

20

18

18

18

17

17

16

17

16

16

16

16

16

16

16

16

16

16

_

-

Month

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

Calendar year 1949 ......................

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

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

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

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

Mar.

14

14

14

14

14

13

13

13

12

12

13

13

12

12

13

13

12

13

13

15

16

16

16

19

22

19

20

20

19

19

20

Apr.

20

20

20

20

21

21

21

25

24

24

23

23

24

23

23

21

22

22

22

23

23

23

23

23

22

22

22

22

22

22

Seoondfoot-days

518

6,167.9

525

450

381

6,035.8

May

21

21

22

22

22

20

21

21

21

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

19

19

17

18

Maxiaram

60

60

22

16

15

72

June

18

18

17

17

17

18

18

18

17

17

17

17

17

17

17

17

17

17

16

16

16

16

16

16

16

15

15

15

15

14

July

14

14

14

14

13

20

22

20

20

19

18

18

18

17

17

17

17

16

16

16

16

16

19

20

17

17

16

16

16

16

16

Minimua

10

2.7

12

13

13

12

9.8

Aug.

16

16

15

15

15

16

15

15

15

15

15

15

15

14

15

15

14

14

14

14

14

14

14

14

14

14

.14

14

14

13

13

Mean

16.7

16.9

16.9

14.5

12.7

16.5

Sept.

13

13

12

13

13

15

14

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

12

12

12

12

12

12

12

12

Runoff in 

acre-feet

1,330

12,240

1,040'

693

756

11,980
52 SANTA ANA RIVEF BASIN

Mill Creek near Mentone, Calif.

Location. Water-stage recorder and concrete broad-crested weir, lat. 34°05'10", long. 

ilV"U6'55", in SEtNWtr sec. 17, T. IS., R. 2 W., at Bear Valley pipe-line crossing, 0.2 

mile upstream from Santa Ana River, 1.5 miles northeast of Mentone, and 5 miles southeast of East Highlands. Altitude of gage, about 1,780 feet.

Records available.--February 1939 to September 1950. 

Average discharge.--11 years, 3.50 second-feet.

Extremes.--Maximum discharge during year, 27 second-feet Feb. 7 (gage height, 3.50 feet); 

no now during much of year.

1939-50: Maximum discharge, 1,500 second-feet Dec. 23, 1945 (gage height, 6.5 feet), 

by slope-area method; no flow during several periods each year.

Remarks.--Records fair. The Zanja diverts above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

O 

0 

0 

0 

0

0 

0 

0 

0 

.2

.2 

.1 

.1 

O 

O

O 

O 

0 

O

0

0 

0 

0 

O 

0

O

0

o 

o

0

Dec.

ooooo ro oooo

I-1!Mrororow (OCn 1 

Jan.

0.1 

0

0 

0 

0

0 

0 

0 

.2 

.1

.1 

.1

.1 

.1 

O

0 

O

o

0

o

0 

0 

0 

0 

0

o

0

o 

o 

o 

o

Feb.

0

o 

o 

o 

o

6.2 

10 

.7 

.3 

.3

.3

0 

O 

0

o

o 

o 

o

0

o 

o

0

o

0 

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

pebr 

Marc 

Apr! 

WAV

June 

July 

Augu 

Sept

Va

lendar year 194S

ter year 1949-50 .......................

Peak discharge (base, 10 sec. -ft.}. Dec.

Mar. Apr.

Secondfoot-days

0 

.6 

5.0

5.6

.8 

17.8 

0 

0 

0 

0 

0

8

24.2

May

Maximum

O 

.2 

2.5

2.5

.Z

10 

0 

0 

0 

0 

0 

0 

0

10

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

19 (9:30 a.m.) 11 sec. -ft.; .Feb. 7

Aug. Sept.

 _. Runoff in Mean acre-feet

0 0 

.02 1.2 

.16 9.9

.02 11

.03 1.6 

.64 35 

0 0 

0 0 

0 0 

0 0 

0 0 

0 0 

0 0

.07 48

(7:30 a.m.) 27 sec.-
SANTA ANA RIVER BASIN £3

Plunge Creek near East Highlands, Calif.

Location.--Water-stage recorder and broad-crested weir, lat. 34°07'10", long. 117°08'30", 

in MK^NE^ sec. 1, T. IS., R. 3 W., at mouth of canyon at crossing of North Fork ditch 

siphon, 2 miles northeast of East Highlands. Altitude of gage, about 1,625 feet.

Drainage area.--16.9 square miles.

Records available.--January 1919 to September 1950.

Average discharge. 31 years, 6.29 second-feet.

Extremes.--Maximum discharge during year, 223 second-feet Dec. 19 (gage height, 1.62 feet); 

no now during several months.

1919-50: Maximum discharge, 5,340 second-feet Mar. 2, 1938, by slope-area method; 

no flow for long periods eactvyear.

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

TaTr. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0

11

72 

dl.O 

d.8 

d.6 

d.5

d.5 

d.4 

d.3 

d.l 

d.l

d.O5 

d.05

e.Ol

Dec.

eO.Ol

e.02

26 

97 

18

6.2 

4.1 

3.0 

2.3

1.9

1.7 

1.4 

1.3 

1.3 

1.3 

1.4

Jan.

1.4 

1.6 

1.7 

1.6 

1.4

1.4 

1.3 

2.6 

6.8 

2.3

4.2 

9.4 

4.9 

3.9 

3.7

3.4 

3.4 

3.4 

2.8 

2.6

2.6 

2.5 

2.6 

2.6 

2.6

2.2 

2.1

1.9 

5.6 

3.9 

3.0

Feb.

2.5 

2.2 

2.1 

2.1 

1.9

72 

100 

32 

d24 

d20

19 

17 

15 

12 

8.6

9.7 

9.3 

7.9 

7.5 

6.8

6.5 

6.2 

5.8 

5.5 

5.5

5.2 

5.2

5.2

Month

Octo 

Hove 

Decei

Ca

Janu 

Febr 

Hare 

Aprl

Ma v

June 

July 

Augu 

Sept

Ma

lendar year 1949

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

ter year 1949-50 ...............

Mar.

5.2 

5.8 

4.7 

4.3 

3.9

4.3 

3.2 

2.2 

2.3 

2.5

2.5 

2.5 

2.6 

2.6 

2.6

dl.3 

de.Ol

1.2 

13

7.9 

4.8 

2.6 

1.2 

.01 

.01

Apr.

eO.Ol

3.1 

10 

4.9

2.3

1.9 

1.2 

.06 

.01

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

O

Secondfoot-days

0 

87.48 

167.15

1,016.22

95.4 

416.7 

83.29 

23.54 

0 

0 

0 

0 

1.8

875.36

Hay

Maximum

0 

72 

97

97

9.4 

100 

13 

10 

0 

0 

0 

0 

1.2

100

June July

Minimum

0 

0

0

1.3 

1.9

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

2.92 

5.39

2.78

3.08 

14.9 

2.69- 

.785 

0 

0 

0 

0 

.06

2.4C

Sept.

0 

0 

0

o

0

1.2 

.6 

O 

0 

0

0 

0 

0 

O 

0

0 

0 

O 

0 

0

0 

0 

0

o 

o

0 

0 

0 

0 

0

Runoff In 

acre-feet

0 

174 

332

2,020

189 

827 

165 

47 

0" 0 

0 

0 

3.6

1,740

Peak discharge (base. 150 sec.-ft.). Dec. 19 (4:50 a.m.) 223 sec.-ft.; Feb. 7 (6 a.m.) 131 secjft. 

d Doubtful gage-height record; discharge Interpolated or computed on basis of records for nearby 

stations.

e Dally discharge less than 0.1 sec.-ft.

207481 O - 52 . S
54 SANTA ANA RIVER BASIN

San Timoteo Creek near Redlands, Calif.

Location. Water-stage recorder and concrete control, lat. 34 t> 01'55", long. 117 c> 12'30 n , in 

 HW$NWi sec. 4, T. 2 S., R. 3 W., 2 miles southwest of Hedlands. Altitude of gage, 

about 1,260 feet.

Drainage area. 123 square miles.

Records available.--October 1926 to September 1950.

Average discharge. 24 years, 1.71 second-feet.

Extremes. Maximum discharge during year, 114 second-feet Feb. 6 (gage height, 1.55 feet); 

no flow during most of year.

1926-50: 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

d.l 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0

.3 

5.4 

0

0 

5.6 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

16 

4.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

BavJune 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949 

ary

at . . ...

ter year 1949-50. ......................

Mar.

0.3 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

' 0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot -days

0 

0

.1

20.1

11.3 

20.1 

.3 

0 

0 

0 

.2 

0 

.1

32.1

May

Maximum

0 

0

.1

13

5.6 

16 

.3 

0 

0 

0 

.1 

0 

.1

16

June July

0 

0 

0 

0 

0

d.l 

d.l 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

r

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Minimum

0 

0 

0

0

0 

0 

0 

0^ 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.003

.06

.36 

.72 

.01 

0 

0 

0 

.01 

0 

.003

.09

Sept.

0 

0 

0 

0 

0

d.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

Runoff ±n 

acre-feet

0 

0 

.2

40

22 

40 

.6 

0 

0 

0 

.4

b

.2

63

Peak discharge (base, 50 sec. -ft.). Jan. 12 f2:40 a.m.) 87 sec. -ft.; Feb. 6 (2:25 p.m.) 114 aec.-

d Doubtful gage-height record; discharge computed on basis of weather records.
SANTA AHA RIVER BASH 55

Little San Gorgonio Creek near Beaumont, Calif.

Location. Water-stage recorder, lat. 34°01'30", long. 116"57"00", in .Nl£ sec. 2, T. 2 S., 

R. 1 tf., at Beaumont Avenue bridge, 7 miles north of Beaumont. Altitude of gage, about 

4,300 feet (from topographic map).

Drainage area. 2.61 square miles.

Records available. October 1948 to September 1950.

Extremes. Maximum discharge during year, about 20 second-feet Feb. 6; no flow for several 

montns.

1948-50: Maximum discharge, that of Feb. 6, 1950; no flow for several months of eaclr 

year.

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

rair. Several small diversions above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22- 

25 

24 

25

26 

27 

2B 

29 

30 

31

Oct. Mov.

o

0

o

0 

0

0 

0

o

0 

2.1

.3

.02 

.01 

O 

0

0 

O 

0

o

0

o

0

0

o

0 

0

o 

o

0 

0

Dec.

0 

0

o

0 

0

0 

0 

0 

0 

0

0

o

0

0 

0

.03 

.03 

d2.7 

d6.0

.1

.05 

O 

O 

0 

0

0 

0

o

0

0

o

Jan.

, e.O2

O

0

e.Ol

0

0 

O 

O 

O 

O

.03 

.03 

.01 

.2 .1" 

.1

Feb.

[ e.06

dS.l 

3.4 

.4 

.2 

.8

.5 

.3 

.2 

.2

.1

.1 

.1

e.OS

Month

Octo 

Hove 

Dec*

Ca

Janu 

Febr 

Marc 

Aprl

HAJT

June 

July 

Augu 

Sept

Ha

nber. ... ....,». -----------------------

lendar year 1949

t«r year 1949-5O. ......................

Mar.

0.2 

.2

.1 

.1 

.1

,1 

.1 

.1 

.1 

.1

.1 

e.08

e.06

.2 

.2

.2 

.3 

.2 

.2 

.2 

.1

Apr.

0.1 

.1

e.OS

.2 

.2 

.2

.2 

.2 

.2 

.2

.1

.1 

.1

e.O7

.1

.1 

.1 

.1

Secondfoot -days

o 

2.43 

8.91

75.21

.72 

13.58 

3.78 

3.33 

1.94 

0 

0 

0 

O

34.69

Hay

0.1

.1

.2

.2

.1

.1 

.1

e.07

e.OS

O

0 

0 

0

Maximum

0 

2.1 

6.0

6.0

.2 

6.1 

.3 

.2 

.2 

0 

0 

0 

0

6.1

June July

Minimus

0 

0 

0

0

o

0

o

0'0

0

o

Aug.

Mean

0 

.081 

.287

.206

.023 

.485 

.122 

.111 

.062 

0 

O 

O 

0

.095

Sept.

Runoff in 

acre-feet

0 

4.8 

18

150

1.4 

27 

7.5 

6.6 

3.8 

O 

O 

0 

O

69

d Doubtful gage-height record; discharge determined from evidence of flow in channel,weather 

records, and records for nearby stations, 

e Discharge less than O,1 second-foot.
56 SANTA ANA RIVER BASIN

Warm Creek near Colton, Calif.

Location.--Water-stage recorder, lat. 34 0 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 1950.

Average discharge.--30 years, 52.7 second-feet. Average combined discharge of Warm Creek 

ana Meeics & uaiey Canal, 30 years, 63.9 second-feet.

Extremes.--Maximum discharge during year, 401 second-feet Nov. 10 (gage height, 4.44

 feet); minimum daily, 14 second-feet July 28-30.

1920-50: 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. 68 for records of Meeks & Daley Canal near Colton, which

 diverts above station, and p. 57 for records of combined flow of canal and Warm Creek. 

City of San Bernardino sewage disposal plant discharged'8,220 acre-feet into Warm 

Creek above station during year. In seasons of high water table, there is flow in a 

depression p-i-alleling Warm Creek about 500 feet east of station; based on discharge 

measurement- («ee p. 446), the amount of runoff during year is estimated to have been 

420 acre-feec. During greater part of year, low stage flow of Warm Creek passing this 

station is diverted into Riverside Water Co.'s canal (capacity, 100 second-feet) 0.3 

mile downstream. Lytle Creek flood channel (capacity, 30,000 second-feet),completed 

in fall of 1945, enters Warm Creek above station and includes any flow which formerly 

might have been recorded at station on Lytle Creek (west channel].

Revisions (water years). W 1061: 1944, 1945.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct-.

16 

15 

18 

18 

19

20 

20 

19 

IS 

20

19 

19 

18 

18 

18

18 

20 

21 

20 

20

20 

20 

24 

25 

22

22 

22 

22 

21 

20 

22

Nov.

23 

23 

23 

23

22

22 

24 

24 

38 

158

54 

38 

36 

38 

35

36 

36 

36 

37 

34

33 

32 

32 

31 

31

31 

31 

31 

30 

26

Dec.

26 

26 

26 

26 

27

31 

32 

35 

32 

30

26 

27 

28 

28 

28

27 

26 

54 

165 

60

51 

47 

46 

46 

45

45 

47 

47 

46 

45 

45

Jan.

44 

44 

44 

44 

44

43 

43 

80 

53 

44

61 

64 

52 

52 

49

49 

51 

52 

51 

48

47 

48 

49 

50 

50

51 

51 

51 

68 

52 

51

Feb.

51 

49 

50 

50 

50

195 

151 

78 

66 

71

68 

60 

58 

56 

55

55 

55 

54 

53 

55

56 

55 

56 

56 

53

52 

52 

52

llonth Seoondfoot-days

Ooto 

Hove 

Deoe.

Ca

Janu 

Febr 

Haro 

Apri 

toy.

June 

July 

Augu 

Sept

Wa

ber. .........................

mber ......................

lendar year 1949 

ary .... ...

614 

1,068 

1,270

............ 13,850

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

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

1,580 

1,812 

1,376 

1,048 

771 

634 

542 

543 

533

tor year 1949-50 ............ 11,791

Peak discharge (base, 290 sec. -ft.). Nov.

sec. -ft. 

t Discharge from sewage plant of city of Sa 

ceding columns. Records furnished by that oi

liar.

55 

53 

51 

50 

48

48 

47 

46 

45 

48

49 

38 

35 

37 

34

36 

37 

38 

38 

38

37 

38 

36 

50

75

52 

49 

42 

42 

42 

42

Apr.

41 

34 

34 

34 

34

33 

31 

44 

52 

40

46 

43 

42 

40 

41

35 

32 

34 

33 

31

30 

30 

30 

31 

30

30 

28 

27 

29 

29

Haxivum

25 

158 

165

169

80 

195 

75 

52 

30 

22 

20 

20 

19

195

10 (11:15 a.

n Bernardino 

ty.

Hay

30 

30 

30 

30 

30

28 

27 

27 

26 

26

25 

25 

24 

24 

25,

25 

24 

25 

24 

23

22 

23 

23 

23 

2$

23 

22 

20 

22 

20 

22

tUniBum

15 

22 

26

12

43 

49 

34 

27 

20 

20 

14 

15 

15

14

June

21 

20 

20 

20 

21

22 

22 

22 

21 

20

20 

20 

20 

20 

21

22' 

. 22 

22 

22 

22

22 

22 

22 

2-2 

20

21 

20 

22 

21 

E2

Mean

19.8 

. 35.6 

41.0

37-. 9

51.0 

64.7 

44.4 

34.9 

24.9 

21.1 

17.5 

17.5 

17.8

32.3

July

20 

20 

20 

19 

19

18 

17 

18 

18 

18

18 

18 

18 

18 

18

18 

19 

18 

18 

18

18 

17 

16 

 16 

18

17 

15 

14 

14 

14 

15

Aug.

15 

15 

15 

15 

17

17 

18 

18 

17 

17

18 

19 

18 

20 

18

15 

18

18 

18 

16

19 

19 

18 

19 

19

18 

16 

18 

19 

18 

18

Runoff in 

acre-feet

1,220 

2,120 

2,520

27,480

3,130 

3,590 

2,730 

2,080 

1,530 

1,260 

1,080 

1,080 

1,060

23,400

m.) 401 sec. -ft. j Feb. 6 (7:30 p 

j included in runoff figures giv

Sept.

19 

18 

16 

16 

18

18 

18 

18 

18 

16

19 

19 

19 

18 

18

18 

18 

19 

18 

18

18 

17 

16 

15 

18

IS 

18 

18 

18 

18

Inflow in 

acre-feett

704 

726 

684

7,930

704 

657 

701 

689 

694 

698 

691 

664 

613

8,220

.m. ) 342 

en in pre-
SANTA ANNA RIVER BASIN 57

Combined discharge, in second-feet, of Warm Creek and Meeks & Daley Canal near Colton, Calif., 

water year October 1949 to September 1950

Day

1 

2

3

 1 

5

£

7

e

9 

10

11

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

35 

35 

38 

37 

38

39 

59 

38 

37 

39

38 

58 

37 

37 

37

37 

39 

40 

39 

39

39 

38 

39 

40 

36

36 

36 

36 

35 

34 

36

Nov.

37 

37 

37 

37 

36

36 

38 

38 

52 

167

56 

40 

39 

41 

39

40

40 

39 

41 

41

41 

40 

40 

39 

39

39 

39 

40 

40 

40

Dec.

42 

42 

42 

42 

43

48 

49 

52 

48

46

41 

42

43 

43 

43

42

41 

68 

166 

60

51 

47 

46 

46 

45

45 

47 

 47 

46 

45 

45

Jan.

44 

44 

44 

44 

44

43 

43 

80 

53 

44

61 

64 

52 

52 

49

49 

51 

52 

51 

48

47 

48 

49 

50 

50

51 

51 

51 

68 

52 

51

Feb.

51

49 

50 

50 

50

196 

152 

78 

66 

71

68 

60 

58 

56 

55

55 

55 

54 

53 

55

56 

55 

56 

56 

53

52 

53 

53

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

55 

53 

54 

54 

51

52 

51 

50 

49 

51

52 

51 

53 

55 

52

55 

56 

57 

57 

56

56 

56 

54 

68 

83

55 

52 

46 

46 

46 

46

Apr.

44 

47 

53 

53 

53

52 

50 

63 

70 

59

54 

46 

45 

44 

44

49 

52 

53 

52 

48

45 

45 

45 

46 

45

45 

46 

46 

48 

48

Secondfoot -days

1,161 

1,328 

1,553

18,728

1,580 

1,816 

1,672 

1,490 

1,361 

1,207 

1,138 

1,142 

1,117

16,565

May

49 

49 

49 

49 

49

48 

46 

46 

45

45

44 

44 

43

43 

44

44 

43 

44 

43 

42

41 

42 

42 

42

42

42 

41 

39 

41 

39 

41

Maximum

40 

167 

166

172

80 

196 

83 

70 

49 

42 

40 

39 

39

196

June

40 

39 

39 

39 

40

42 

41 

41 

40 

39

39 

39 

39 

39 

40

41 

41 

41 

41 

41

41 

41 

41 

41 

39

41 

40 

41 

40 

41

July

40 

40 

39 

38 

38

37 

36 

37 

37 

37

37 

37 

37 

37 

37

37 

38 

37 

37 

37

37

36 

35 

36 

37

36 

34 

34 

34 

34 

35

Minimum

34 

36

41

29

43 

49 

46 

44 

39 

39 

34 

34 

34

34

Aug.

35 

34 

34 

34 

36

36 

37 

37 

36 

36

- 38 

38 

37 

39 

37

35 

38 

37 

37 

35

38 

38 

38 

38 

39

38 

36 

38 

39

37 

37

Mean

37.5 

44.3 

50.1

51.3

51.0 

64.9 

53.9 

49.7 

43.9 

40.2 

36.7 

36.8 

37.2

45.4

Sept.

38 

37 

36 

36 

38

38 

38 

38 

37 

35

39 

38 

38 

38 

38

38 

38 

38 

37 

37

37 

36 

35 

34 

38

38 

37 

37 

37 

38

Runoff in 

acre-feet

2,300 

2,630 

3,080

37,140

3,130 

3,600 

3,320 

2,960 

2,700 

2,390 

2,260 

2,270 

2,220

32,860
58 SANTA ANA RIVER BASIN

Strawberry Creek near Arrowhead Springs, Calif.

Location. Water-stage recorder and broad-crested weir, lat. 34"10'45", long. 117°15'55", 

In SE£ sec. 11, T. 1N.,R. 4 W., upstream from Del Rosa Water Co.'s lower diversion 

dam, 0.5 mile south of Arrowhead Springs. Altitude of gage, about 1,650 feet.

Drainage area. 8.6 square miles.

Records available. December 1919 to September 1950.

Average discharge . 30 years (1920-50), 4.82 second-feet.

Extremes. Maximum discharge during year, 181 second-feet Feb. 7 (gage height, 3.23 feet); 

minimum daily discharge, 0.3 second-foot on several days in August and September.

1919-50: Maximum discharge, 3,360 second-feet Mar. 2, 1938, by rainfall-runoff 

studies; practically no flow at times during 1929, 1931-35.

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

Fair. One small diversion above station for domestic supply.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

. 23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.5 

.6 

.6 

.6

.8 

.8 

.7 

.7 

.8

.8 

.7 

.7 

.8 

.9

.8 

.9 

.8 

1.0 

1.0

1.0 

.9 

1.0 

.8 

1.0

1.0 

.8 

.8 

1.0 

.6 

.8

Nov.

0.8 

.9 

.9 

.6 

.6

.8 

.8 

1.1 

1.5 

21

4.8 

2.8 

2.0 

1.6 

1.4

1.3 

1.4 

1.4 

1.4 

l.S

1.4 

1.4 

1.5 

1.5

1.5

1.4 

1.7 

1.7 

1.4 

1.5

Dec.

1.5 

1.4 

1.3 

1.5 

1.5

1.4 

1.6 

1.8 

1.7 

1.9

1.7 

1.7 

1.7 

1.7 

1.6

1.7 

1.8 

23 

48 

10

5.4 

4.0 

4.0 

3.9 

3.5

2.8 

2.1 

2.2 

2.2 

1.9 

l.S

Jan.

2.0 

2.2 

2.4 

2.5 

2.2

2.0 

2.1 

4.1 

4.4 

3.4

7.3 

9.2 

5.7 

4.7 

3.6

4.0 

3.9 

3.5 

3.4 

3.2

2.S 

2.6 

2.6 

3.1 

2.8

2.8 

2.8 

2.6 

6.5 

4.8 

4.3

Feb.

3.5 

3.4 

3.4 

3.2 

3.4

52 

57 

18 

13

12

12 

10 

8.6 

8.0 

6.8

5.7 

5.5 

5.2 

4.3 

4.2

4.0 

3.9 

3.9 

3.9 

3.6

3.8 

3.4 

3.8

Month

Octo 

Hove

Decs

Ca

Janu 

Febr 

Marc 

Aprl 

Mn v

June 

July 

Augu 

Sept

Wa

lendar year 194< 

ary

ter year 1949-50 .......................

Peak discharge {base. 40 sec. -ft.) .--HOT.

Mar.

4.0 

3.9 

3.6 

3.5 

3.5

3.4 

2.9

3.0 

3.1 

3.1

3.2 

3.1 

2.9 

3.0 

3.1

3.0 

3.0 

3.0 

2.8 

2.5

2.4 

2.5 

2.8 

4.3 

7.8

4.2 

3.6 

3.4 

3.1 

3.O 

3.1

Apr.

3.0 

2.9 

2.8 2.6- 

2.3

2.3 

2.3 

3.7 

4.8 

3.4

3.0 

2.S 

2.8 

E.6 

2.6

2.6 

2.2 

2.2 

2.2 

2.3

E.5 

2.9 

2.9 

2.3 

2.1

2.2 

2.4 

2.5 

2.4 

2.4

Secondfoot-days

24.8 

63.4 

142.3

1,040.2

113. 5' 

269.5 

103.8 

80. 0 

66.4 

41.0 

19.4 

13.2 

17.9

955.2

10 (10:45 a.

May

2.4 

2.5 

3.2 

2.6 

2.5

2.2 

2.1 

2.2 

2.0 

1.8

1.7 

1.8 

2.2 

2.3 

2.0

2.2 

2.5 

2.4 

2.3 

2.1

2.1 

2.0 

2.4 

2.3 

2.1

1.9 

1.9 

1.9 

1.7 

1.5 

1.6

Maximum

1.0 

21 

48

___.__,

9.2 

57 

7.8 

4.8 

3.2 

2.1 

.7 

.6 

1.2

57

June

1.8 

1.7 

1.7 

1.5 

1.3

E.O 

2.1 

1.9 

1.5 

1.2

1.6 

1.4 

1.4 

1.6 

1.5

1.5 

1.6 

1.3 

1.2 

1.2

1.2 

1.2 

1.1 

1.2 

1.4

1.0 

.8 

.8 

.7 

d.6

July

dO. 6 

d.6 

d.6 

d.6 

d.6

d.6 

d.6 

d.6 

.6 

.7

.7 

.7 

.6 

.6 

.6

d.6 

d.6 

.6 

.6 

d.6

d.6 

,6 

.7 

.7 

d.7

d.7 

.7 

d.6 

d.6 

.6 

.6

Minimum

0.4 

.6 

1.3

.4

2.0 

3.2 

2.4 

2.1 

1.5 

.6 

.6 

.3 

.3

.3

n.) 68 sec. -ft.; Dec.

Aug.

dO. 6 

d.6 

d.6 

d.6 

d.5

d.5 

d.4 

d.4 

d.4 

d.4

d.4 

d.4 

d.4 

d.4 

d.4

d.4 

d.4 

d.4 

d.4 

d.4

d.4 

d.4 

d.4 

.4 

.4

.4 

.5 

.4 

.3 

.3 

.3

Mean

0.80 

2.11 

4.59

2.85

3.66

9.62 

3.35 ' 

2.67 

2.14 

1.37 

.63 

.43 

.60

2.62

Sept.

0.3 

.3 

.3 

.3 

.4

1.2 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.8 

.8 

.8 

.6 

.6

.6 

.6 

.6 

.6

.7

.5 

.6 

.6 

.6 

.6

Runoff In 

acre-feet

49

126 

282

2,060

225 

535 

206 

18(9 

132 

81 

38 

"2lS, 

36

1,900

19 (3:30 a.m.) 123 sec.

181 sec.-ft.

d Doubtful gage-height record; discharge computed on basis of fragmentary gage-height record and 

records for nearby stations.
SANTA ANA RIVER BASIN 59

Waterman-Canyon Creek near Arrowhead Springs, Calif.

Location. Water-stage recorder and broad-crested weir, lat. 34°11'35", long. I17°16'3S", 

IrTSW^SW^ sec. 2, T. 1 H., R. 4 W., 1 mile northwest of Arrowhead Springs. Altitude 

of gage, about 2,125 feet.

Drainage area. 4.55 square miles.

Records available.--November 1911 to October 1914, December 1919 to September 1950.

Average discharge.--32 years (1912-14, 1920-50), 2.91 second-feet.

Extremes. Maximum discharge during year, 105 second-feet Dec. 19 {gage height, 3.02 feet); 

minimum daily discharge, less than 0.1 second-foot during several periods.

1920-50: Maximum discharge, 2,350 second-feet Mar. 2, 1938, based on rainfall-runoff 

studies; no flow at times during summers of 1924-26, 1928, 1929, 1931, 1934, 1948.

Remarks.--Records good except those for Dec. 23-27 and Sept. 12-15, which are fair. One 

small diversion for domestic use above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

50 

31

Oct.

0.2 

.2 

.2 

.2 

.3

.5 

.5 

.4 

.4 

.4

.3 

.2 

.2 

.3 

.3

.3 

.6 

.6 

.6 

.5

.5 

.3 

.4

.3 

.3

.4

.4 

.3 

.3 

.3 

.3

Nov.

0.3 

.3 

.2 

.2 

.2

.2 

.3 

.5 

1.1 

10

1.9 

1.4 

1.0 

.9 

.8

.8 

.8 

.7 

.7 

.6

.7 

.7 

.6 

.6 

.6

.7 

.7 

.7 

.7 

.6

Dec.

0.5 

.5 

.5 

.5 

.5

.5 

.6 

.8 

.8 

.9

.8 

.8 

.9 

.8 

.9

1.2 

1.2 

16 

24 

7.3

4.7 

3.4

d3.0 

, d2.6 

d2.4

d2.2 

dl.9 

1.8 

1.8 

1.7 

1.7

Jan.

1.6

1.7 

1.6 

l.S 

1.5

1.5 

1.6 

3.3 

2.9 

2.5

6.1 

4.7 

3.3

3.1 

2.8

2.6 

2.5 

2.5 

2.4 

2.3

2.1 

2.2 

2.3 

2.3 

2.3

2.1 

2.1 

2.1 

3.8 

3.1 

2.8

Feb.

2.6 

2.5 

2.5 

2.2 

2.1

23 

21 

11 

8.5 

7.6

6.5 

5.9 

5.3 

5.0 

4.5

4.2 

4.1 

3.9 

3.8 

3.7

3.6 

3.5 

3.4 

3.4 

3.2

3.2

3.1 

3.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

liAV

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

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

ter year 1949-50 .......................

Mar.

3.2 

3.0 

2.8 

2.7 

2.6

2.6 

2.5 

2.5 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

2.4 

2.2 

2.2 

2.1 

2.1

2.1 

2.1 

2.1 

4.7 

5.4

3.2 

2.9 

2.6 

2.3 

2.2 

2.1

Apr.

2.0 

1.9 

1.8 

1.7 

1.7

1.7 

1.7 

3.1 

2.9 

2.1

2.0 

1.9 

1.9 

1.7 

1.7

1.6 

1.5 

1.4 

1.4 

1.4

1.6 

1.7 

1.8 

1.7

1.7

1.7 

1.8 

1.8 

1.7 

1.7

Secondfoot-days

11.0 

29.5 

87.2

635.8

79.2 

156.3 

82.1 

54.3 

42.2 

23.4 

9.5 

2.40 

6.15

583.25

May

1.7 

1.7 

2.2 

1.8 

1.6

1.5 

1.4

1.4 

1.2 

1.2

1.2 

1.3 

1.4 

1.4 

1.4

1.4 

1.6 

1.6 

1.4 

1.3

1.2 

1.2 

1.4 

1.4 

1.3

1.2 

1.1 

1.0 

.9 

.9 

.9

Maximum

0.6 

10 

24

24

6.1 

23 

5.4 

3.1 

2.2 

1.2 

.5 

.2 

.4

24

June

0.9 

1.0 

1.0

.8 

.8

1.2 

1.1 

.8 

.8 

.7

.7

.8 

.8 

.8 

.8

.8 

.8 

.6 

.6 

.6

.6 

.7 

.9 

1.0 

.9

.8 

.6 

.6 

.5 

.4

July

0.4 

.4 

.4 

.3 

.3

.4 

.4 

.4 

.5 

.5

.4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.3

Aug.

0.2 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

^ e.04 

.1

.1

e.03

.1 

.1

.1

.1 

.1 

.1

V e.04 

.1

Minimum Mean

0.2 0.35 

.2 .98 

.5 2.81

.1 1.74

1.5 2.55 

2.1 5.58 

2.1 2.65 

1.4 1.81 

.9 1.36 

.4 .78 

.2 .31 

.077 

.205

1.60

Peak discharge (base. 35 sec. -ft.). Nov. 10 (9:45 a.m.) 42 sec. -ft. j Dec. 19 (2:50 a.m

Sept.

>e0.03

.1 

.2 

.2 

.2 

.3

.3 

a. 3 

a. 3 

a. 4 

a. 4

.4 

.4

,3 

.3 

.2

.2 

.2 

.1 

.2 

.2

.2 

.1 

.1 

.2 

.2

Runoff In 

acre-feet

22 

59 

173

1,26Q

157 

310 

163 

108 

84 

46 

19 

4.8 

12

1,160

.) 105 sec.-

a Ho gage-height reeordj discharge interpolated.

d Doubtful gage-height record; discharge computed on basis of records for nearby stations.

e Daily discharge less than 0.1 see.-ft.
60 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. 

 1 N., R.3W., 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 1950.

Average discharge.--31 years, 8.66 second-feet. Average combined discharge of City Creek 

ana Uity Creek Water Co.'s canal, 26 years (1924-50), 10.4 second-feet.

Extremes. Maximum discharge during year, 198 second-feet Dec. 19 (gage height, 2.86 feet); 

no flow for several days.

1919-50: Maximum discharge, 6,900 second-feet Mar. 2, 1938, by slope-area method; no 

flow-for several months in many years.

1924-50: Minimum combined daily discharge of City Creek and canal, less than 0.05 

second-foot Sept. 1-11, 1948.

Remarks.--Records good. For records of combined discharge of City Creek and City Creek 

water Co.'s canal, which diverts above station, see following page.

Discharge, In second-feet, water year October 1949 to September 1950

Day Oct.

! 

I5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

L eO.Ol

I e.02

.1 

.2 

.4

.3 

. e.04

e.08

.6 

.5

. e.Ol

Nov.

eO.Ol

30

8.5 

3.7 

2.7 

2.2 

2.2

1.7 

.5 

.5 

.5

.5

.5 

.5 

.5 

.5

.6

.3 

.1 

.1 

,1 

.1

Dec.

0.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.2 

.2

.2 

.2 

.2

.1 

.1

.2 

.2 

28 

92 

25

11 

7.3 

6.1 

5.7 

5.1

4.8 

4.5 

3.5 

2.0 

1.9 

1.5

Jan.

1.5 

1.9 

3.9 

3.4 

3.2

3.2 

3.2 

8.7 

11 

5.7

11 

17 

8.5 

6.9 

6.5

6.1 

6.1 

6.5 

6.5 

6.5

6.1 

5.7 

5.4 

5.4 

5.1

5.1 

4.8 

4.5 

9.7 

8.5 

7.7

Feb.

6.5 

6.1 

 4.8 

4.5 

4.5

63 

82 

34 

22

21

20 

19 

14 

11 

10

9.8 

8.5 

8.1 

8.1 

7.7

7.2 

6.5 

6.5 

6.1 

4.5

3.9 

3.9 

3.8

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febri 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lender year 1949

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

ter year 1949-50 .......................

Mar.

4.3 

6.1 

4.5 

3.7 

3.4

3.4 

3.2 

3.2 

2.9 

2.9

3.0 

2.7 

2.7 

2.5 

2.2

2.0 

1.9 

3.4 

3.5 

dl.2

d.l 

.1 

.1 

4.9 

23

5.4 

2.9 

2.5

2.0 

1.5 

1.4

Apr.

1.2 

.8 

.5 

.4

> e.02

3.7 

8.3 

3.4

2.9 

2.4 

1.7 

1.4 

1.4

1.2 

1.0 

.8 

.5

> e.02

.2 

.7 

.3 

.2

.1 

.1 

.2 

.2 

.2

Secondfoot -days

2.95 

56.39 

200.8

1,414.79

195.3 

407.0 

106.6 

33.90 

5.84 

1.13 

1.38 

.15 

1.08

1,012.52

May

0.2 

.2 

1.5 

.9 

.2

.2 

.4 

.4

, e.oe

Maximum

0.6 

30 

92

92

17 

82 

23 

8.3 

1.5

.4 

.5

92

June

,e0.05 

e.03

}...«

Minimum

0.

-

1. 

3.

0

0

July

.eO.ol

.1 

.4 

.3

.1 

.1

e.04

Aug.

> eO.Ol

0

0 

0 

0 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

e.J)l

Mean

0.095 

1.88 

1 6.48

3.88

5 6.30 

8 14.5 

1 3.44 

1.13 

.188 

.038 

.045 

.005 

.036

2.77

Sept.

.eO.Ol

d.3 

d.5

e.Ol

Runoff In 

acre-feet

5.9 

112 

398

2,810

387 

807 

211 

67 

12 

2.2 

2.7 

.3 

2.1

2,010

Peak discharge (base, 150 sec.-ft.).--Dec. 19 (4 a.m.) 198 sec.-ft. 

d Doubtful gage-height record; discharge computed on basis of weather'records and records for nearby stations.

e Daily discharge less than 0.1 sec.-ft.
SANTA ANA RIVER BASIN 61

Combined discharge, In seoond-feet, of City Creek and canal near Highland, Calif., 

water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.1 

.1 

.2

.2 

.2 

.4 

1.0 

1.3

1.1 

.5 

.5 

.6 

.6

.8 

1.3 

2.0 

1.6 

1.6

1.5 

1.3 

1.6 

1.5

1.0

1.0 

1.0 

.9 

.9 

.8 

.8

Nov.

0.8 

.8 

.8 

.8 

.8

.8 

1.0 

1.4 

1.9 

32

8.5 

3.7 

2.7 

2.2 

2.2

2.1 

2.1 

2.1 

2.1 

2.2

2;3 

2.2 

2.2 

2.2 

2.3

2.4 

2.3 

2.3 

2.3 

2.2

Dec.

2.2 

2.2 

2.2 

2.2 

2.2

2.3 

2.5 

3.1 

3.2 

3.2

3.2 

3.1 

3.0 

2.9 

2.9

3.1 

3.3 

30 

92 

25

11 

7.3 

6.1 

5.7 

5.1

4.8 

4.5 

3.5 

2.2 

2.6 

2.3

Jan.

2.4 

2.8

3.9 

3.7

3.7 

3.7 

9.2 

12 

6.2

12 

18 

9.0 

7.4 

6.9

6.6 

6.6 

7.1 

7.1 

7.0

6.6 

6.2 

5.8 

5.8 

5.5

5.5 

5.2 

4.9

10 

8.8 

7.7

Feb.

6.5 

6,1

5.4 

5.4

63 

82 

34 

22 

22

20 

19 

15 

12 

11

11 

9.7 

9.3 

9.3 

8.9

8.4 

7.7 

7.7 

7.3 

6.2

6.1 

6.2 

6.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

6.1 

7.1

5.3 

5.6

5.7 

5.5 

5.6 

5.3 

5.3

5.4 

5.1 

5.0 

4.8 

4.7

4.7 

4.5 

5.2 

5.1 

4.7

4.1 

4.0 

4.1 

9.5 

28

11 

8.5 

8.1 

7.3 

6.5 

6.4

Apr.

'5.9 

5.3

4.8 

4.8

4.8 

4.9 

9.8 

15 

9.7

8.5 

7.8 

6.9 

6.3 

6.0

5.6 

5.2 

4.8 

4.7 

4.2

4.2 

4.3 

4.9 

4.4 

4.2

4.6 

5.0 

5.1 

4.8

5.0

Secondfoot-days

26.8 

93.7 

248.9

2,044-. 6

211.7 

432.6 

203.6 

176.4 

128.4 

54.1 

7.2 

3.5 

9.1

1,596.0

May

5.0 

5.4

6.5 

5.4

5.1 

5.3 

5.0 

4.5 

4.8

3.7 

4.2 

5.2 

3.9 

3.6

3.6 

4.0 

4.2 

3.7 

3.1

3.0 

3.0 

3.7 

3.9 

3.7

3.5 

3.0 

2.8 

2.8 

2.7 

2.7

Maximum

2.0 

32 

92

92

18 

82 

28 

15 

7.4 

3.4 

.5 

.2 

.6

' . 92

June

2.6 

2.6

2.2 

2.2

3.0 

3.4 

2.6 

2.0 

1.8

1.8 

2.0 

2.0 

2.0 

2.1

2.1 

2.1

1.9 

1.6 

1.5

1.3 

1.3 

1.3 

1.5 

1.4

1.1

.8 

.7 

.5 

.3

July

0.2 

.2 

.2 

.1 

.2

.2 

.2 

.2

.4 

.5

.5 

.4 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.1

.1 

.1 

.2 

.5 

.4

.2 

.2 

.1 

.1 

.2 

.2

Minimum

0.1 

.8 

2.2

.1

2.4 

5.4 

4.0 

4.2 

2.7 

.3 

.1 

.1 

.1

.1

Aug.

0.2 

.2 

.1 

.1 

.1

.1 

.1 

.1:i .1

.1 .1 -.1 

.1 .1

.1 .1 .1 .1 .1

.1 .1 .1 .1 

a

.2 

.2 

.1 

.1 

.1 

.1

Mean

0.86 

3.12 

8.03

5.60

6.83 

15.4 

6.57 

5.88 

4.14 

1.80 

.23 

.11 

.30

4.37

Sept.

0.1

.1 

.1

.1 

.1

.4 

.6 

.5 

.3 

.3

.3 

.3 

.3 

.3 

.4

.4

.5 

.5 

.5

.4

.3 

.3 

.3 

.3

.2

.2

.2 

.2 

.3 

.3

Runoff in 

acre-feet

53 

186 

494

4,050

420 

858 

404 

350 

255 

107 

14 

6.9 

18

3,170
62 SANTA ANA RIVER BASIN

Devil Canyon Creek near San Bernardino, Calif.

Location. Water-stage recorder and broad-created weir, lat. 34"12'05", long. 117«20«10H , 

 i'h 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 1919 to September 1950.

Average discharge. 31 years (1913-14, 1920-50), 1.92 second-feet.

Extremes. Maximum discharge during year, 72 second-feet Dec. 19 (gage height, 2.60 feet): 

no now for several months.

1913-14, 1919-50: Maximum discharge, 3,320 second-feet Mar. 2, 1938, by rainfallrunoff studiea; no flow for periods in most years.

Remarks. Records good. City of San Bernardino diverted 1,220 acre-feet above station 

aurlng year for municipal supply.

Discharge, in second-feet, water year October 1949- to September 1950

Day

1 

2

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0

1.1

.1

0 

0 

0 

0

0 

0 

0 

0

o 

o

0 

0 

0 

0

0

o

0 

0

o

Dec.

o

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

9.2 

24 

4.5

2.1 

d.5 

d.l 

0 

0

0 

0 

0 

0 

O 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.6 

1.5 

.4 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Month

Ooto 

NOVA 

Decs

Ca

Janu 

f»br 

Maro 

Apri 

«av

June 

July 

Augu 

Sept

Wa

 her .........................

 ber .........................

lendar year 1949 ............

&ry . . .

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

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

ter year 1949-50 ............

Feb.

0 

0 

0 

0 

0

8.5 

13 

6.5 

3.8 

2.2

1.9 

d2.5 

d3.2 

dl.O 

d.2

.2 

.2 

,2 

.2 

.2

.2 

.2 

.1 

.1 

.2

.2 

.2 :2

Secondfoot-days

0 

1.2 

40.4

103.7

2.5 

45.2 

3.5 

.8 

.!( 

0 

0 

0 

0

93.8"

Peak discharge (base, 25 sec. -ft.)

T Diversion by city of San Bernard

Mar.

0.2 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.6

.1 

.1

6JD3

Apr.

eO.02 

e.05

, e.04 

, e.02

Maximum

0 

1.1 

24

L 24

1.5 

13 

2 .6 

3 

5 

0 

0 

0 

0

24

May

 eO.Ol

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Minimum

0 

0 

0

0

0 

0

0 

0 

0 

0 

0

0

June

Mean

0 

.0< 

1.3C

.28

.oe

1.63 

J.1 

.03 

£0 

0 

0 

0 

0

.25

July Aug.

Runoff In 

acre-ffeet

0 

I 2.4 

80

4 205

5.0 

90 

4 7.0 

0 1.8 

5 .3 

0 

0 

0 

0

7 186

Sept.

Diversion 

acre-feett

57 

70 

104

1,230

155 

181 

162 

135 

120 

90 

59 

45 

47

1,220

. Dec. 19 (4:15 a.m.) 72 sec. -ft. 

Inc. Record furnished by that city.

d Doubtful gage-height record} discharge computed on basis of records for nearby stations or 

Interpolated.

e.Discharge less than O.I sec.-ft.
SANTA ANA RIVER BASIN 63

Lytle Creek near Fontana, Calif.

Location. At intake of Fontana pipe line, lat. 34°12'05", long. 117 0 27'05", in NW£ sec. 

b, T. 1 N., R. 5 W., unsurveyed, Just downstream from Lytle Creek power plant of 

Southern California Edison Co. and 8 miles north of Fontana. Water-stage recorder 

located about 1 mile upstream from intake of Fontana pipe line. Altitude of gage, about 

2,200 feet.

Drainage area. 47.9 square miles.

Records available. October 1918 to September 1921, October 1922 to September 1950.

Average discharge. 31 years, 8.98 second-feet. Average combined discharge of Lytle Creek, 

ai years, 39.5 second-feet.

Extremes. Maximum discharge during year, 207 second-feet Dec. 19; no flow during most of 

year.

1918-21, 1922-50: Maximum discharge, 25,200 second-feet Mar. 2, 1938, by slope-area 

method; no flow during most of each year.

Remarks. Records fair. Table on following page shows combined flow of Lytle Creek, 

Montana Union Water Co.'s infiltration line, and Southern California Edison Co.'s 

conduit, which is total flow of Lytle Creek.

Cooperation. Records of flow through infiltration line furnished by Fontana Union Water 

Co., ana those of flow through conduit famished by Southern California Edison Co.

Revisions (water years). V 1011: 1943.

Discharge, in second-feet, Mater year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct. Nov.

0 

0 

0 

0

0

0 

0 

0 

0 

13

0 

0 

0 

0 

0

0 

0 o

0 

0

0 

0

0 

0 

0

0 

0 

0 

0 

0

Dee.

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

34 

58 

d.2

0 

0 

0 

0 

0

0 

0

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.4 

.3

0 

.2 

O

0 

O 

O 

0 

0

0 

0

o

0 

0

.1

.4 

.4 

1.2 

1.2 

.7

Feb.

0 

0

o

0 

0

16 

10 

7.4 

3.2 

2.3

1.7 

1.3 

.9 

.8 

.6

.6 

.4 

.2 

.2 

.1

.1 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mflv

June 

July 

Augu 

Sept

Ha

mber. ............------------.....-.....

lendar year 1949

ter year 1949-50 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.2 1.1

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0

0 

.8 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

o 

o 

o

0 

0 

0 

0 

0

Secondfoot-days

0 

13 

92.2

139.96

4.9 

45.8 

1.3 

.9 

0 

0 

0 

0 

0

153. 1

Bay

Maximum

0 

13 

58

58

1.2 

16 

1.1 

.8 

0 

O 

0 

0 

0

58

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

°.43 

2.97

.38

.16 

1.64 

.04 

.03 

0 

0 

0 

0 

0

.43

Sept.

Runoff In 

acre-feet

0 

26 

183

273

9,7 

91 

2.6 

1.8 

0 

0 

0 

0 

0

314

d Doubtful gage-height record; discharge interpolated.
64 SANTA ANA RIVER BASIN

Combined discharge, In second-feet, of Lytle Creek, Southern California Edison Co. conduit,

and Pontana Union Water.Co. Infiltration line near Pontana, Calif.,

water year October 1949 to September ""=" 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Oct.

12

12

12

12

12

13

13

13

13

13

13

13

12

13

13

13

13

13.

13

14

13

13

13

13

13

13

13

13

13

13

13

Nov.

14

14

14

14

13

13

13

13

11

32

12

10

11

10

9.8

9.6

9.3

9.3

9.1

9.3

9.3

9.1

9.1

9.1

9.1

9.3

9.3

9.4

9.4

9.4

-

Dec.

9.4

9.7

9.8

9.8

10

10

10

11

12

12

12

11

11

11

12

12

12

50

73

23

21

20

18

18

17

17

16

15

15

15

14

Jan.

14

14

14

14

14

14

14

16

19

16

18

19

18

18

18

17

17

16

16

16

16

16

17

17

16

16

16

16

18

17

17

Feb.

16

15

15

15

15

40

34

36

33

31

29

29

26

26

24

23

22

22

21

21

21

20

20

20

18

19

18

19

_

-

Month

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

Calendar year 1949 .......................

February . .

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

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

Water year 1943-50 .......................

Mar.

18

18

17

16

17

17

17

17

16

16

16

16

16

16

16

15

16

16

16

15

15

15

15

16

15

16

16

16

16

15

15

Apr.

15

15

15

15

15

15

15

19

20

19

18

18

18

18

17

17

16

16

16

16

16

16

16

15

18

20

20

20

20

20

-

Seoondfoot-days

516.. 7

' 5,929.6

369

317

320

5,479.6

May

20

20

20

20

19

19

19

21

21

20

20

20

20

20

20

19

19

18

18

18

18

18

18

18

18

18

17

17

17

17

17

Maximum

32

73

73

11

73

June

17

17

17

16

16

17

17

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

14

14

14

13

13

13

-

July

13

13

12

12

12

13

13

12

13

13

13

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

.Minimum

9

-1

9.4

9.1

11

10

10

9.1

Aug.

11

11

11

11

11

11ia

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

Mean

16.7

16/2

18.8

11.9

10.2

10.7

15.0

Sept.

10

10

10

10

10

10

11111111

11

11111111

1111111111

101111

10

11

11

1111

10

10

-

Runoff in 

acre- feet

1;020

11,770

1,020

932

732

629

635

10,860
SANTA ANA RIVER BASIN 65

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

Location. Water-stage recorder, lat. 34 0 05'45", long. 117°19'50", in San Bernardino 

urant, at Mount Vernon Avenue Bridge in San Bernardino, San Bernardino County. Altitude of gage, about 1,050 feet.

Records available. January 1929 to September 1950.

Extremes. Maximum discharge during year, 36 second-feet Nov. 10; maximum gage height, 

I.YU feet Jan. 8; no flow on Oct. 22.

1929-50: Maximum discharge, 21,500 second-feet Mar. 2, 1938, by computation of flow 

through contracted opening; no flow during parts of many years.

Maximum total discharge of Lytle Creek (east and west channels combined), 29,400 

second-feet Mar. 2, 1938.

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

HaTer diverted from Lytle Creek above station by Pontana 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 flood-control 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 1949 to September 1950

Day

1 

2 

3 

4

5

6 

- 7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.6 

1.7 

1.5 

1.5

.6 

.4 

.3 

.4 

.4

.5 

.5 

.3 

.5 

.6

.4 

1.3 

.2 

.2

.7

.9 

0 

.1 

.5 

.4

.1 

.1 

.7 

.4 

.5 

.2

Nov.

0.5 

.4 

.7 

1.3 

.2

.4 

1.4 

.3 

.9 

9.2

.8 

.6 

.8 

1.6 

.8

2.4 

.7 

.6 

.5 

1.3

1.6 

.6 

.6 

.6 

.5

.4 

.4 

.5 

.6 

.4

Dec.

0.4 

.4 

.4 

.7 

1.2

1.7 

1.3 

1.6 

1.2 

1.0

.6 

.6 

.5 

.8 

.9

.8 

.8 

3.5 

3.5 

.8

.8 

.5 

.5 

.6 

.8

.6 

.4 

.3 

.4 

.8 

1.1

Jan.

1.5 

1.7 

1.6 

1.0 

.9

1.3 

1.0 

5.9 

1.3 

.6

2.3 

1.4 

.6 

1.2 

1.2

.7 

.6 

.6 

.6 

.6

1.0 

.9 

1.1 

1.3 

1.1

.7 

.6 

1.5 

2.7 

.8 

.7

Feb.

0.6 

.7 

.6 

.5 

.6

8.0 

2.0 

.8 

.8 

1.4

.9 

.9 

1.2 

1.0 

1.2

1.2 

1.0 

1.6 

2.2 

2.1

3.4 

1.7 

1.2 

1.1 

1.0

.8 

.8 

.6

Month

Octo 

Hove 

Dece

Ca

janu 

Pebr 

Marc 

Apri 

Hay.

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50

Mar.

0.5 

.5 

.5 

.6 

.6

.5 

.5 

.5 

.5 

.5

.5 

.5 

.4 

.4 

.7

.4 

.4 

.5 

.6 

.5

.5 

.6 

.7 

2.8 

2.2

1.0 

1.2 

1.2 

1.2 

1.2 

1.2

Apr.

0.7 

.7 

.5 

.5 

.4

.4 

.4 

2.4 

1.4 

.8

.6 

.4 

.4 

.4 

.2

.9 

.7 

.6 

.9 

.8

.8 

.5 

.5 

.6 

.3

.6 

.4 

.4 

.4 

.6

Secondfoot-days

16.7 

31.6 

29.5

243.8

39.0 

39.9 

23.9 

19.2 

21.5 

26.0 

12.1 

15.7 

16.3

291.4

May

0,5 

.4 

.6 

.5 

.5

.4 

.6 

.5 

.4 

.9

.7 

.7 

.8 

1.2 

1.0

.4 

.3 

.6 

.4 

.2

.2 

.3 

.9 

.7 

.6

.7 

.9 

1.6 

.9 

1.4 

1.7

Maximum

1.7 

9.2 

3.5

9.2

5.9 

8.0 

2.8 

2.4 

1.7 

2.4 

.8 

1.3 

1.4

9.2

June

2.4 

2.1 

.4 

.3 

.3

.6

1.4 

2.0 

1.4 

al.O

a. 8 

a. 6 

.4 

.3 

.5

a. 5 

a. 5 

a. 4 

.4 

.4

.4 

.5 

.8 

1.1 

1.1

1.5 

1.3 

1.2 

.8 

.6

July

0.2 

.2 

.5 

.5 

a. 4

a. 4 

.4 

.4 

.4 

.3

.4 

.3 

.3 

.3 

.2

.2 

.3 

.6 

.8 

.8

.5 

.4 

.2 

.7 

.2

.2 

.5 

.4

.3 

.3 

.5

Minimum

0 

.2 

.3

0

.6 

.5 

.4 

.2 

.2 

.3 

.2 

.2 

.1

0

Aug.

1.3 

.5 

.5 

.4 

.5

.4

.8 

.6 

.6 

.5

a. 5 

a. 5 

a. 4 

a. 4 

a. 4

.3 

.3 

.2 

.2 

.2

.5 

.5 

.6 

.7 

.9

.2 

.4

.8 

.6 

.5 

.5

Mean

0.54 

1.05 

.95

.67

1.26 

1.42 

.77 

.64 

.69 

.87 

.39 

.51 

.54

.80

Sept.

0.3 

.4 

.3 

.2 

.3

.8 

.7 

.5 

.3 

.3

.3 

.3 

.4 

.3 

.3

.3 

.5 

1.2 

1.4

.8

.3 

.3 

.1 

.3 

.9

1.3 

1.1 

.9 

.9 

.3

See?

33 

63 

59

485

77 

79 

47 

38 

43 

52 

24 

31 

32

,578

Peak discharge (base, 12 sec. -ft.) .--Nov. 10 (9:20 a.m.) 36 sec. -ft. 5 Jan. 8 (7:40 p.m.) 31 sec.-

ft.; Feb. 6~{4:5O a.m.) 18 sec.-ft.

a No gage-height record; discharge Interpolated.
66 SANTA AHA RIVER BASIN

Cajon Creek near Keenbrook, Calif.

Location. Water-stage recorder, lat. 34°16 I 00 11 , long. 117°27'35", in S¥&SE£ sec. 12, T.. 

2TT7 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 1950.

Average discharge. 30 years (1920-50), 9.79 second-feet.

Extremes. Maximum discharge during year, 40 second-feet Jan. 8 (gage height, 4.66 feet); 

minimum daily, 1.4 second-feet Aug. 31, Sept. 2,3.

1919-50: 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.

Remarks. Records good. No diversion or regulation above station. 

Revisions (water years). W 1091: 1946.

Discharge, in second-feet, water year October 1949 to September 1950 _

Day

1 

2 

3 

4 

5

6 

7 

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.

2.2 

2.2 

2.2 

2.2 

2.4

2.6 

2.6 

2.6 

2.8 

2.8

2.6 

2.4 

2.4 

2.4 

2.4

2.4 

2.6 

2.8 

2.8 

2.6

2.6 

2.6 

2.6 

2.4 

2.4

2.2 

2.6 

2.6 

2.6 

2.4 

2.4

Hov.

2.4 

2.4 

2.4 

2.4 

2.6

2.6 

2.6 

2.8 

3.0 

5.5

3.9 

3.4 

3.2 

3.0 

2.8

2.8 

2.6 

2.6 

2.6 

2.6

2.8 

2.8 

2.8 

2.8 

2.8

2.8 

2.8 

2.8 

3.0 

3.0

Dec.

2.8 

2.8 

2.8 

2.8 

3.0

3.0 

3.0 

3.2 

3.2

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.2 

3.2 

9.1 

14 

7.4

5.3 

4.5 

4.2 

3.8 

3.8

3.8 

3.4 

3.4 

3.4 

3.4 

3.4

Jan.

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.1 

8.7 

7.7 

5.3

7.4 

7.0 

5.3 

5.3 

4.9

4.9 

4.9 

4.9 

4.5 

4.5

4.2 

4.5 

4.5 

4.9 

4.9

4.5 

4.5 

4.5 

4,9 

4.5 

4.2

Feb.

3.8 

3.8 

3.8 

3.4 

3.8

17 

8.5 

7.0 

6.6 

6.1

6.1 

5.7 

5.3 

5.3 

5.3

5.3 

4.9 

4.9 

4.5 

4.5

4.5 

4.5 

4.5 

4.5 

4.5

4.5 

4.5 

4.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mflv

June 

July 

Augu 

Sept

Wa

her. ....................................

rnber. ...................................

lendar year 1949

St......................................

ter year 1949-50 .......................

Mar.

5.2 

4.9 

4.5 

4.5 

4.5

4.5 

4.2 

4.2 

4.2 

4.2

4.2 

4.2 

4.2 

4.2 

4.2

3.8 

4.2 

4.2 

4.2 

4.2

3.8 

3.8 

4.2 

5.3 

5.7

4.5 

4.2 

3.8 

3,8 

3.4 

3,4

Apr.

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

1 3.8 

4.9 

6.1 

5.3

4.5 

4.2 

3.8 

3.8 

4.2

4.2 

3.8 

3.8 

3.4 

3.4

3.4 

3.8 

3.4 

3.1 

3.1

3.4

3.4 

3.4 

3,1 

3.1

Secondfoot-days

77.4 

86.6 

123. 9

1,800.9

148.9 

151.6 

132.4 

112.8 

104.5 

78,8 

75.3 

66.9 

59.6

1,218.7

May

3.4 

3.8 

3.8 

3.4 

3.4

3.1 

3.1 

3.1 

3.1 

2.7

2.7 

3.1 

3.1

3.8 

4.2 

3.8 

3.8 

3.8

3.4 

3.4 

3.4 

3.4 

3.4

3.4

3.4 

3.4 

3.1 

3.1 

3.1

Maximum

2.8 

5.5 

14

72

8.7 

17 

5.7 

6.1 

4.2 

3.1 

3.1 

2.7 

2.4

17

June

3.1 

3.1 

3.1 

2.7 

2.7

3.1 

3.1 

2.7 

2.7 

2.4

2.4 

2,4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.7 

3.1 

3.1 

3.1

2.7 

2.4 

2.4 

2.1 

2.1

July

2.4 

2.4 

2.4 

2.4 

2.7

2.7 

2.7 

2.7 

3.1 

2.7

2.7 

2,4 

2.4

2.1 

2.1 

1.7 

1.7 

2.1

2.4 

2,4 

2.4 

2.4 

2.4

2.4 

2.4

2.4 

2.7 

2,7 

3.1

Minimum

2.2 

2.4 

2,8

2.0

3.1 

3.4 

3.4 

3.1 

2.7 

2.1 

1.7 

1.4 

1.4

1.4

Aug..

2.7 

2.7 

2.7 

2.7 

2.7

2.4 

2.4 

2.4 

2.1 

2.1

2.1 

2.1 

2,1

2.1 

2.1 

2.1 

1.7

2.1

1.7 

2.4 

2.4 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

1.7 

1.4

Mean

2.50 

2.89 

4.00

4.93

4.80 

5.41 

4.27 

3.76 

3.37 

2.63 

2.43 

2.16 

1.99

3,34

Sept.

1.7 

1.4 

1.4 

1.7 

1.7

1.7 

1.7 

2.1 

1.7 

2.1

2.1 

2.1 

1.7

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1

2.1

2.4 

2.1 

2.4 

2.4 

2.4

Runoff in 

acre-feet

154 

172 

246

3,570

295 

301 

263 

224 

207 

156 

149 

133 

118

2,420

Peak discharge (base, 140 see.-ft.). Ho peak above base.
SANTA MA RIVER BASIN 67

Lone Pine Creek near Keenbrook, Calif.

Location. Water-stage recorder, lat. 34°15'55", long, 117°27'1 55", In SE^ sec. 12, T. 2 N., 

Itnnr., 50 feet upstream from Atchlson, Topeka & Santa Fe Railway Bridge, 120 feet upstream from Cajon Creek, 0.7 mile northeast of Keenbrook, and 16 miles northwest of 

San Bernardlno. Datum of gage, 2,605.92 feet above mean sea level, datum of 1929, supplementary adjustment of 1946.

Drainage area. 15.0 square miles.

Records available. December 1919 to September 1938, June 1949 to September 1950.

Average discharge. 19 years (1920-38, 1949-50), 1.56 second-feet.

Extremes. Maximum discharge during year, about 10 second-feet Jan. 8 (gage height, 2.07 

reet), from rating curve extended above 0.5 second-foot by logarithmic plotting; minimum, 

0.3 second-foot on many days.

1919-38, 1949-50: Maximum discharge, 6,180 second-feet Mar. 2, 1938, by slope-area 

method; minimum, 0.1 second-foot at times during period 1926-32.

Remarks. Records good. No diversion or regulation above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

£ 

3

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

IB 

19 

20

21 

22 

23 

24

25

26 

Z7 

ZB 

29

30 

31

Oct.

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4

.5

.4 

.5 

.5 

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4

.4 

.4 

.4 

.4

Mov.

0.4 

.4 

.4 

.4 

.4

.4

.4 

.5 

.5 

.6

.4 

.4

.4

.4 

.4

.4

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

Dec.

0.4 

.4 

.4 

.4 

.4

.5 

.5 

.5 

.4 

.4

.4 

.4

.4 

.4

.4

.5 

.5 

.7 

.7 

.6

.6 

.6 

.5 

.5 

.5

.5 

.4 

.4 

.4 

.4 

.4

Jan.

0.4

.4 

.4 

.4 

.4

.4

.4 

.8 

.5 

.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

1.2 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4

.4 

.4

.5

.4 

.5 

.5 

.5 

.5

.5 

.5 

.4

Month

Octo 

More 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

 lav

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year

ai*y

ter year 1949-5O .......................

Mar.

0.4 

.4 

 .4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4

.4

.4 

.4

.4 

.4 

.4

.4

.4 

.4 

.4 

.5 

.4

.4 

.4

.4 

.4 

.3 

.3

Apr.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.5 

.5

.4

.4 

.4 

.4 

.4

.4

.4

.4 

.4

.4

.4

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4

.5

Secondfoot-days

13.9 

12.4 

14.5

-

12.9 

13.1 

12.3 

11.9 

12.6 

10.0 

11.3 

9.3 

9.4

145.6

May

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.4 

.4 

.4

.4 

.4

.4 

.4 

.4

.4 

.4 

.4

.4

.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3 

.3

Maxima

0.5 

.6 

.7

-

.8 

1.2 

.5 

.5 

.5 

.4 

.4 

.3 

.4

1.2

June

0.3 

.3 

.3 

.3 

.3

.3

.4 

.4 

.4 

.4

.4

.4 

.4 

.4 

.4

.4 

.3

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

July

0.3 

.3 

.3 

.3 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4

.4 

.4

.4 

.4 

.4

.4 

.4

.4

.4 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.3 

.3

Minimum

0.4 

.4

.4

-

.4 

.4 

.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 

.3

Mean

0.45 

.41 

.47

-

.42 

.47 

.40 

.40 

.41 

.33 

.36 

.30 

.31

.39

Sept.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.4

.4

.4

.4 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

Runoff In 

acre-feet

28 

25 

29

-

26 

26 

24 

24 

25 

20 

22 

18 

19

286
68 SANTA AHA RIVER BASIN

Meeks & Daley Canal near Colton, Calif.

Location. Water-stage recorder and sharp-forested weir, lat*. 34°04'45", long. 117°18 I 00",

 in San Bernardlno Grant, at point of diversion from Warm Creek and 1.6 miles northeast 

of Colton, San Bernardino County. Altitude of gage, 965 feet (from topographic map).

Records available. September 1920 to September 1950. 

Average discharge. 30 years, 11.2 second-feet.

Extremes. --Maximum daily discharge during year, 19.9 second-feet July 30, Sept. 5, 6, 15, 

16; no flow during several periods in December and January.

1920-50: Maximum daily discharge, 25 second-feet Mar. 2, 1938; no flow at times.

Remarks . Records good. Canal diverts water from right bank of Warm Creek 1.6 miles

 norEheast of Colton for irrigation in vicinity of Colton, Riverside, and Corona.

Revisions (water years ).- .W 1061: 1944, 1945.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

19.4 

19.6 

19.7 

19.1 

19.5

19.4 

19.4 

19.2 

19.1 

19.2

19.2 

19.2 

19.2 

19.2 

19.1

19.2 

19.3 

19.4 

19.2 

19.1

19.1 

17.6 

14.7 

15.2 

14.5

14.0 

14.0 

14.0 

14.0 

14.0 

13.9

Nov.

13.8 

13.9 

13.8 

13.8 

13.7

13.6 

13.7 

13.7 

13.9 

9.2

2.3 

2.5 

2.6 

3.0 

3.9

3.7 

3.6 

3.4 

3.7 

6.7

8.3 

8.3 

8.2 

8.2 

8.1

8.4 

8.5 

8.6 

9.6 

13.6

Dec.

15.8 

16.1 

15.9 

15.5 

15.8

17.1 

17.0 

16.8 

16.5 

15.7

15.2

15.3 

15.4 

15.3 

15.4

15.5 

15.3 

13.8 

1.3 

0

0 

0 

0 

0 

0

0 

0

.1 

.1

.1

.1

Jan.

6.1 

.1 

.1 

.2 

.3

.3 

.2 

.2

.1 

.1

.1 

0 

0 

0 

0

0 

0

.1 .1 

.1

.1

0

.1 .1

0

0 

0

.1

.2 

.1

.1

Feb.

0.1 

.1 

.1 

.1 

.1

1.3 

.9 

.3 

.2 

.3

.3

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.6 

.8

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

0.1 

.1 

2.5 

3.6 

3.4

3.7 

4.1 

3.9 

3.7 

3,4

3.0 

13.3 

18.2 

17.9 

17.8

18.8 

18.8 

18.8 

18.6 

18.4

18.5 

18.5 

18.2 is. 2

7.8

3.4 

3.2 

3.5 

3.5

3.6 

3.7

Apr.

3.5 

12.7 

18. T 

19.0 

19.2

19.3 

19.4 

19.2 

17.7 

18.7

7.7 

3.4 

3.1 

3.6 

3.3

13.9 

19.5 

19.0 

18.6 

16.6

15.0 

14.8 

14.9 

15.2 

15.0

14.9 

17.5 

19.3 

19.4 

19.4

Secondfoot-days

550.7 

258.3 

285.1

4,900.3

2.9 

6.7 

294.2 

441.5 

591,7 

574.6 

598.4 

600.3 

585.3

4,789.7

May

19.3 

19.4 

19.0 

18.7 

19.0

19.6 

19.0 

18.9 

18.9 

18.6

19.0 

19.2 

19.1 

19.2 

19.0

18.9 

19.4 

19.4 

19.2 

18.9

19.0 

19.0 

19.4 

19.4 

19.1

19.1 

18.9 

19.0 

19.1 

18.9 

19.1

Maximum

19.7 

13.9 

17.1

20

.3 

1.3 

18.8 

19.5 

19.6 

19.6 

19.9 

19.8 

19.9

19.9

June

19.3 

19.2 

19.0 

19.1 

19.4

19.5 

19.0 

18.9 

19.0 

19.0

19.2 

19.2 

19.3 

19.4 

19.0

19-.0 

18.9 

18.9 

19.3 

19.1

18.9 

18.8 

19.1 

19.2 

19.1

19.6 

19.5 

19.3 

19.1 

19.3

July

19.6 

19.5 

19.1 

19.0 

19.0

19.3 

19.1 

19.4 

19.0 

19.1

19.3 

19.1 

19.1 

19.1 

19.1

19.1 

19.4 

19.4 

19.4 

19.3

19.0 

19.2 

19.3 

19.6 

19.4

19.4- 

19.4 

19.5 

19.6 

19.9 

19.7

Aug.

19.6 

19.3 

19.0 

19.1

19.1

19.3 

19.3 

19.1 

19.0 

19.1

19.8 

19.1 

19.2 

19.0 

19.3

19.7 

19.6 

19.1 

19.4 

19.4

19.5 

19.4 

19.5 

19.5 

19.6

19.5 

19.6 

19.8 

19.6 

19.4 

19.4

Minimum Mean

13.9 . 17.8 

2.3 8.61 

0 '9.20

0 13.4

0 .09 

.1 .24 

.1 9.49 

3.1 14.7 

18.6 19.1 

18.8 19.2 

19.0 19.3 

19.0 19.4 

19.2 19.5

0 13.1

Sept.

19.4 

19.4 

19.6 

19.7 

19.9

19.9 

19.6 

19.6 

19.4 

19.4

19.6 

19.2 

19.4 

19.6 

19.9

19.9 

19.6 

19.4 

19.3 

19.2

19.2 

19.4 

19.3 

19.4 

19.6

19.6 

19.4 

19.4 

19.4 

19.6

Runoff in 

acre-feet

1,090 

512 

565

9,720

5.£ 

13 

584 

876 

1,170 

1,140 

1,190 

1,190 

1,160

9,500
SANTA ANA RIVER BASIN 69

Day Creek near Etiwanda, Calif.

Location. --Water-stage recorder and broad-crested weir, lat. 34°11'00", long. 117°32'25", 

in swt 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 1950.

Average discharge. --21 years, 4.62 second-feet.

Extremes . --Maximum discharge during year, 580 second-feet Sept. 6, by slope-area method; 

minimum daily, 0.1 second-foot during several months.

1929-50: Maximum discharge, 4,200 second-feet Mar. 2, 1938, by rainfall-runoff 

studies; minimum, 0.1 second-foot Dec. 19, 20, 1933, and several months in 1950.

Remarks . --Records good. "Etiwanda Water Co. diverted 1,270 acre-feet above station during 

year, measurements of diversion October 1949 to September 1950 are as follows:

Date

Oct. 4

17

31

Nov. 14

28

Dec. 27

Jan. 16

23

30

Discharge 

(sec. -ft.)

1.29

1.30

.98

0

2.00

0

1.96

2.99

3.62

Date

Feb. 20

27

Mar. 6

13

20

Apr. 4

JO

18

24

Discharge 

(sec. -ft. )

3.67

2.90

2.85

2.49

2.16

2.28

4.10

2.98

3.02

Date

May 2

9

15

29

June 7

15

26

July 7

12

Discharge 

(sec. -ft.)

3.51

2.83

2.16

1.90

1.99

1.93

2.09

1.92

1.75

Date

July 24

Aug. 2

7

15

31

Sept. 12

20

Discharge' 

(sec. -ft. )

1.58

1.01

1.37

1.23

1.26

1.70

1.54

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.2

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

,3

Nov.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.4 

10

3.9 

3.2 

2.8 

2.6 

1.4

.4 

.4 

.4 

.3 

.3

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Dec.

0.2 

.2 

.2 

.2 

.2

.2

-.2

'.2 

1.1

1.1 

1.2 

1.2 

1.2 

.8

.4 

.3 

11 

25 

8.4

7.3 

5.6 

4.6 

4.0 

3.6

3.5 

3.5 

3.3 

3.1 

3.0 

2.9

Jan.

2.8 

2.7 

2.6 

2.5 

2.4

2.3 

2.3 

3.7 

3.3 

2.7

3.5 

3.2 

1.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1 

.1

Peb.

0.1 

.1 

.1 

.1 

.1

11

8.7 

7.2 

5.7 

5.4

5.0 

4.9 

4.3 

3.9 

3.5

1.9 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

a.l

a.l 

.1 

.1

Month

Octo 

Kove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay.

June 

July 

Augu 

Sept

wa

lendar year 1949 

ary

ter year 1949-50 .......................

Peak discharge (base, 25 sec. -ft.). Nov.

Mar.

0.1 

.1 

.1 

.2 

.2

.1

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

1.5 

3.3

2.3 

1.9 

1.8 

1.6 

1.5 

1.5

Apr.

1.2 

.2 

.2 

.2 

.2

.2 

.2

.2 

.2

.2 

.1 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Secondfoot -days

9.1 

30.7 

97.9

367.1

38.6 

63.6 

17.9 

7.1 

3.4 

3.0 

3.1 

3.1 

32.5

310.0

May

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 

.1

Maximum

0.3 

10 

25

25

3.7 

11 

3.3 

1.2 

.2 

.1 

.1 

.1 

27

27

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

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

Minimum

0.2 

.2 

.2

.2

.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

Mean

0.29 

1.02 

3.16

1.01

1.25 

2.27 

.58 

.24 

.11 

.10 

.10 

.10 

1.08

.85

Sept.

0.1 

.1 

.1

d27

a.l 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Runoff In 

acre-feet

18 

61 

194

728

77 

126 

36 

14 

6.7 

6.0 

6.1 

6.1 

64

615

10 (8:40 a.m.) 48 sec. -ft. j Dec. 19 (1:30 p.m.) 81 seo.-

. .

a No gage-height" record; discharge Interpolated or computed on basis of weather records.

d Doubtful gage-height record; discharge computed on basis of rainfall-runoff studies.

207481 O- 52 - 6
70 SANTA ANA RIVER BASIN

Cucamonga Creek near Upland, Calif.

Location. Water-stage recorder and broad-erested weir, lat. 34°10 I 15" long 117°37<5S" 

J2S50 pSet' 1?> T> 1 N " R ' ? W " 6 mlleS n°rth °f Upland - Altitude of gage, about '

Drainage area.--10.1 square miles.

Records available. December 1928 to September 1950.

Average discharge.--21 years (1929-50), 8.57 second-feet.

Extremes.--Maximum discharge during year, 140 second-feet Dec. 19 (gage height, 3.10 

FeetT; minimum daily, 1.0 second-foot several days in August.

1928-50: Maximum discharge, 10,300 second-feet Mar. 2, 1938, from rainfall-runoff 

study; minimum, 0.7 second-foot Aug. 20-24, 1949.

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

NO diversion or regulation above station.

Revisions (water years). W 1041: 1944.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

i al.l

1.1 

1.1

1.4 

1.6 

1.8 

1.6

1.6

1.5 

1.3 

1.2

1.2 

1.2

1.2 

1.4 

1.5 

1.6 

1.6

1.6 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.3

1.2 

1.2 

1.2

Nov.

1.3 

1.3

1.3 

1.3 

1.4

1.4 

1.4 

1.5 

1.9 

23

7.0 

3.9 

3.0 

3.0

3.1

2.7 

2.5 

2.3 

2.3 

2.1

2.2 

2.1 

2.0 

1.8 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

Dec.

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.7 

2.6 

2.3 

2.2

a2.1 

2.0 

2.1 

2.1 

2.1

2.1 

2.2 

21 

40 

12

8.6 

7.9 

7.2 

5.1 

3.9

3.7 

3.7 

3.6 

3.4 

3.1 

2.9

Jan.

2.8 

2.8 

2.8 

2.7 

2.7

2.7 

2.6 

4.5 

5.1 

3.4

5.2 

5.1 

4.3 

.3

.1

.0 

.0 

.0 

.0 

4.0

4.0 

4.0 

3.9 

3.9 

3.7

3.7 

3.5 

3.6 

4.4 

3.6 

3.5

Feb.

3.6 

3.5 

3.6 

3.7 

4.0

20 

12 

11 

10 

10

9.4 

8.3 

7.9 

7.2 

6.6

5.7 

5.3 

4.8 

4.5 

4.3

4.1 

4.0 

4.O 

4.0 

4.0

4.0

4.0 

4.0

Month

Octo 

Hove 

Deee

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1949 

ary

ter year 1949-50 .......................

Peak discharge (base, 80 sec. -ft.)

a No gage-height record; discharge

Mar.

4.0 

4.O 

4.0 

3.9 

3.9

3.9 

3.8 

3.8 

3.8 

3.9

3.9 

3.9 

- 3.6 

3.4 

3.2

3.4 

3.4 

3.5 

3.5 

3.5

3.5 

3.5 

3.5 

4.9 

6.2

4.7 

4.3 

4.0 

3.8 

3.8 

3.8

Apr.

3.8 

3.7 

3.6 

3.4 

3.4

3.4 

3.4 

5.5 

7.0 

5.8

5.1 

4.7

4.5 

4.4 

4.3

3.9 

3.7 

3.6 

3.5 

3.4

3.5 

3.6 

3.7 

3.6 

3.6

3.6 

3.6 

3.7 

3.6 

3.6

Secondfoot-days

42.1 

85.4 

159.2

1,031.0

116.9 

177.5 

120.3 

120.2 

83.9 

57.3 

45.7 

35.1 

57.1

1,1O0.7

.--Dec. 19 (2:45 a.ra 

Interpolated.

May

3.5 

3.4 

3.2 

3.2 

3.1

3.1 

3.1

3.1 

3.0 

2.8

2.7 

2.7 

2.7 

2.7 

2.7

2.7 

2.8 

2.7 

2.7 

2.5

2.3 

2.5 

2.6 

2.7 

2.6

2.4 

2.2 

2.3 

2.1 

2.0 

1.8

Maximum

1.8 

23 

40

40

5.2 

2O 

6.2 

7.0 

3.5 

2.3 

1.7 

1.3 

3.2

40

June

2.3 

2.2 

2.3

2.1 

2.1

2.3 

2.3 

2.2

2.0

2.0 

2.0 

2.1 

2.0 

2.0

2.0 

2.0 

1.9 

1.8 

1.8

1.8 

1.7 

1.7 

1.7 

1.6

1.6 

1.5 

1.4 

1.4 

1.4

July

1.4

1.4 

1.4 

1.4 

1.5

1.6 

1.7 

1.6

1.7

1.7 

1.6 

1.6 

1.5 

1.4

1.4

I al.4

1.4 

1.4 

1.4 

1.4 

1.4

1.5 

1.5 

1.6 

1.4 

1.2 

1.3

Aug.

1.2 

1.3

1.3 

1.2 

1.2

1.1 

1.1

1.0

1.1

1.1

1.0 

1.1 

1.2 

1.2

1.2 

1.0 

1.0 

1.0 

1.0

1.1 

1.1 

1.1 

1.2 

1.1

1.2 

1.2 

1.2 

1.2 

1.2 

1.1

Minimum Mean

1.36 

1.3 2.85 

1.6 5.14

.7 2 . 82

2.6 3.77 

3.5 6.34 

3.2 3.88 

3.4 4.01 

1.8 2.71 

1.4 1.91 

1.2 1.47 

1.0 1.13 

1.1 1.90

1.0 3.02

.) 140 sec. -ft.

Sept.

1.1 

1.1 

1.1 

1.1 

1.1

2.8 

2.5 

1.7

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.7 

1.7 

1.7

1.6

1.9 

2.4 

2.5 

2.5 

2.5

2.5 

2.4 

2.4 

2.8 

3.2

Runoff In 

acre-feet

84 

169 

316

2,040

232 

352 

239 

238 

166 

114 

91 

70 

113

2,180
SANTA AM RIVER BASIN 

San Jacinto River near San Jacinto, Calif.

71

Location. Water-stage recorder, lat. 33°44'05", long. 116°49M5", In SE£ sec. 13, T. 5 S., 

RTT~E., at highway bridge 1 mile downstream from North Pork and 8.2 miles southeast of 

San Jacinto. Altitude of gage, about 1,980 feet.

Drainage area. 140 square miles. 

'Records available. October 1920 to September 1950. 

Average discharge. 27 years (1921-25, 1927-50), 21.6 second-feet.

Extremes. Maximum discharge during year, 299 second-feet Feb. 7 (gage height, 4.81 feet, 

 from floodmarks); no flow during most of year.

1920-50: Maximum discharge, 45,000 second-feet Feb. 16, 1947, by slope-area method; 

no flow during several months of most years.

Remarks. Records good except those for period Feb. 7-9, which are fair. For records of 

comBlned discharge of San Jacinto River and diversions see following page. Lake Hemet 

Water Co.'s upper canal and lower canal divert water above station for irrigation. 

Fairview Land & Water Co.'s pipe line diverts water above station for domestic use. 

Flow partly regulated by Lake Hemet Reservoir. No usable water In storage on Sept. 30, 

1950, and no water withdrawn from storage during the year.

Revisions (water years). W 881: 1938.

Discharge, In second-feet, mater year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0

0

0 

0 

0 

0 

1.8

9.7 

3.1 

2.0 

1.4 

1.1

.9 

.6 

.3 

.1 

.1

.1

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

0 

0

.1

.2

.2 

.2

0 

0 

0

0 

0 

0 

10 

10

4.8 

3.8 

2.5 

1.7 

1.3

1.1 

.8 

.6 

.7 

.6 

.5

Jan.

0.6 

.9 

1.5 

1.0 

.1

.1 

.2 

.4 

2.5 

1.1

.9 

2.9 

1.8 

1.7 

1.4

1.3 

1.2 

1.8 

2.5 

2.9

3.8 

4.6 

5.5 

6.6 

5.8

4.3 

3.8 

3.3 

58 

55 

28

Feb. .

15 

2.6 

0 

0 

0

80 

a210 

a80 

a20 

16

91 

39 

22 

8.5 

3.6

1.1 

.2 

.2 

.1 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Deee

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 1949 

ary

h. ......................................

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

ter year 1949-50

PfflK 131H'? haT'Ke (base, 100 sec. -ft.). Jan.

sec. -ft.; Feb. 11 (6:50 a.m.) 128 sec. -ft.

Mar. Apr.

Secondfoot -days

0 

21.2 

39.1

1,613.0

205.5 

589.3 

0 

0 

0 

0 

2.6 

0 

0

857.7

»y

Maxlnum

0 

9.7 

10

44

58 

210 

0 

0 

0 

0 

2.4 

0 

0

210

June July

0 

0 

0 

0 

0

2.4 

.2

0 

0 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0 

0 

0

MlnlBun

0 

0

0

0

.1

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

.71 

1.26

4.42

6.63 

21.0 

0 

0 

0 

0 

.08 

0 

0

2.35

Sept.

Runoff in 

acre-feet

0 

42 

78

3,190

408 

1,170 

0 

0 

0 

0 

5.2 

0 

0

1,700

29 (6:15 p.m.) 125 sec. -ft. j Feb. 7 (time unknown) 299

a No gage-height record; discharge computed on basis of high-water marks and records from spreading 

grounds below station.
72 SANTA ANA RIVER BASIN

Combined discharge, in second-feet, of San Jacinto River and diversions near San Jaointo, Calif., 

water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 1.1

1.0 

1.8

1.8 

1.8 

1.6 

1.6 

1.6

1.6 

1.8 

1.8 

1.8 

1.8

1.6 

1.1 

1.0 

.7 

.7

.6 

.5 

.6 

.6 

.6 

.6

Nov.

0.6 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.6 

2.8

9.9 

3.3 

2.2 

1.6 

1.3

1.1 

1.2 

1.1 

1.1 

1.1

1.1 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

Dec.

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0

1.1

1.2

1.2 

1.4 

1.3 

1.3 

1.3

1.4 

1.6 

2.0 

11 

11

6.3 

5.5 

4.5 

4.0 

3.6

3.4 

3.0 

2.8 

2.9 

2.8 

2.7

Jan.

2.8 

3.1 

3.6 

3.5 

3.3

2.9 

3.0 

3.2 

5.3 

3.9

3.4 

5.1 

4.0 

3.9 

3.6

3.5 

3.4 

3.6 

4.6 

4.7

5.8 

6.6 

7.6 

8.7 

8.0

6.5 

6.3 

5.5 

59 

56 

29

Feb.

19 

14 

11 

11 

10

93 

224 

99 

42 

39

114 

56 

38 

31 

26

24 

21 

20 

18 

17

16 

15 

14 

13 

13

12 

12 

12

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apri 

Hay.

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

13 

16 

13 

12 

11

11 

10 

10 

9.5 

9.5

10 

10 

9.3 

8.8 

8.6

8.5 

8.3 

8.0 

7.8 

7.7

7.4 

7.3 

7.4 

7.4 

16

12 

13 

14 

15 

13 

12

Apr.

11 

11 

10 

10 

9.9

9.6 

9.4 

9.8 

17

14

15 

15 

14 

13 

14

16 

16 

17 

19 

19

20 

21 

18 

18 

18

17 

17 

18 

15 

14

Secondfoot -days

36.7 

41.5 

85.3

5,241.2

273.4 

1,034 

326.5 

445.7 

438 

£36.7 

66.4 

44.0 43."

3,072.1

May

14 

14 

18 

19 

17

16 

15 

15 

14 

13

12 

12 

12 

12 

12

12 

12 

14 

16 

16

14 

14 

16 

16 

16

14 

14 

13 

12 

12 

12

Maximum

1.8 

9.9 

11

68

59 

224 

16 

21 

19 

14 

5.9 

1.8 

2.4

224

June

13 

14 

14 

14 

14

14 

14 

13 

13 

13

13 

13 

13 

12 

9.8

4.3 

3.9 

3.5 

3.0 

2.7

2.6 

2.5 

2.5 

2.4 

2.3

2.1 

1.8 

1.9 

2.2 

2.2

July

2.1 

2.1 

2.1 

2.1 

2.2

5.9 

2.5 

1.4 

2.2 

2.0

2.0 

2.4 

2.5 

2.1 

2.0

2.0 

1.9 

1.8 

1.8 

1.8

1.8 

1.8 

2.2 

2.5 

2.1

1.9 

1.9 

1.8 

1.8 

1.9 

1.8

Aug.

1.8 

1.6 

1.4 

1.4 

1.6

1.6 

1.5 

1.5 

1.3 

1.2

1.2 

1.1 

1.2 

1.1 

1.2

1.1 

1.1 

1.1 

.9 

1.2

1.5 

1.7 

1.7 

1.7 

1.7

1.8 

1.8 

1.7 

1.6 

1.5 

1.2

Minimum Mean

0.5 1.18 

.5 1.38 

1.0 2.75

.3 14.4

2.8 8.82 

10 36.9 

7.3 10.5 

9.4 14.9 

12 14.1 

1.8 7.89 

1.4 2.14 

.9 1.42 

.8 1.46

.5 8.42

Sept.

1.4 

1.2 

1.2 

1.4 

1.5

1.8 

2.4 

2.0 

1.9 

1.9

1.9 

1.7 

1.7 

1.6 

1.6

1.6 

1.6 

1.6 

1.7 

1.5

1.4 

1.3 

1.2 

1.1 '1.0

1.0 

.8 

1.2 

.8 

.9

Runoff in 

acre-feet

73 

82 

169

10,400

542 

2,050 

648 

884 

869 

469 

132 

87 

87

6,090

Note. Combined discharge of San Jacinto River and diversions is the combined discharge of San 

Jaelnta River near San Jacinto, Lake Hemet Water Co. 'a upper canal near San Jacinto, Lake Hemet 

Water Co. "s lower canal near San Jacinto and Falrview Land * Water Co.'s pipeline near San Jacinto.
SANTA ANA RIVER BASI-N 73

San Jaclnto River near'Elsinore, Calif.

Location.--Water-stage recorder, lat. 33°39'45", long. 117°17 I 45", near east line of sec.

9, T. 6 S., R. 4 W , 2 miles east of Elsinore and 2.2 miles upstream from Elsinore

Lake (low-water stage). Altitude of gage, about 1,270 feet. 

Drainage area. 717 square miles. 

Kecoras available.--January 1916 to September 1950. 

Average discharge. 34 years, 16.3 second-feet. 

Extremes.--Maximum discharge during year, 18 second-feet Dec. 7 (gage height, 3.39 feet);

no now for several months.

1916-50: Maximum discharge, 16,000 second-feet Feb. 17, 1927 (gage height, 11.8

feet), by slope-area method; no flow for several months in most years. 

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

rair. Storage and diversions above station for irrigation. Regulation since 1928 by

Railroad Canyon Dam (reservoir capacity, 12,000 acre-feet) 2 miles above station.

This runoff includes 520 acre-feet drawn from hold-over storage in Railroad Canyon

reservoir, leaving no usable storage at the end of the year.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

 4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15

Nov.

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

Dec.

16 

17 

17 

16 

15 

16 

16 

4.8 

d.8 . 

d.l 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

Month

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

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

Day

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31

Secondfoot-days

0 

142.3

118.7

267.24

.3 

0 

0 

0 

0 

0 

0 

0 

0

261.3

Nov.

0 

0 

0 

0 

0 

2.3 

14 

15 

15 

16 

16 

16 

16 

16 

16

Maximum

0 

16 

17

17

.2 

0 

0 

0 

0 

0 

0 

0 

0

17

Dec.

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

Jan.

0.1 

.2 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Mean

0 

4.74 

3.83

.73

.01 

0 

0 

0 

0 

0 

0 

0 

0

.72

Runoff in 

acre-feet

0 

282 

235

529

.6 

0 

0 

0 

0 

0 

0 

0 

0

518

d Doubtful gage-height record; discharge interpolated.

Elsinore Lake at Elsinore, Calif.

Location.--Staff gage, lat. 33°40'35" long. 117°21'30", on northeast shore, in La 

Laguna Grant, 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 1950.

Extremes.--Maximum elevation observed during year 1,230.3 feet Oct. 4; minimum observed, 

1,226.7 feet Sept. 27.

1915-50; 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 the lake prior to 1916 is published in Water-Supply Paper 441. A 

summary of high stages that have occurred from 1916 to 1942 is contained in'WaterSupply Paper 961.

Elevation, In feet, 1949-50

Oct. 4

17

26

31

Nov. 14

30

1,230.3

1,230.2

*1, 230.1

1,230.1

1,230.0

1,230.0

Dec.

Jan.

Feb.

13

SJO

5

19

3

16

1,229.9

1,229.9

1,229.9

1,230.0

1,230.0

1,230.0

Mar.

Apr.

May

2

16

30

13

27

11

'1,229.9

1,229.8

1,228.3

1,229.6

1,229.4

1,229.2

May 25

June 9

12

30

July 13

Aug. 3

1,229.0

1,228.7

1,228.6

1,228.3

1,228.0

1,227.6

Aug. 17

25

Sept.ie

27

1,227.3

1,227.1

1,226.8

1,226.7

Gage reading furnished by Santa Margarlta Ranch (a. S. Navy) and Paujba Ranch.
74 SANTA ANA RIVER BASIN

Temeseal Creek near Corona, Calif.

Location. Water-stage recorder, lat. 33°50 I 30" > long. 11?°30'45", in El Sobrante de San 

Jaeinto Grant, 0.5 mile upstream from Blue Diamond Quarry and 4 miles southeast of 

Corona, Riverside County. Altitude of gage, about 730 feet.

Records available. January 1929 to September 1950. 

Average discharge. 21 years, 4.92 second-feet.

Extremes. Maximum discharge during year, 12 second-feet Feb. 6 (gage height, 4.37 feet}; 

no now during most of year.

1929-50: Maximum discharge, 14,900 second-feet Mar. 2, 1938, by slope-area method; 

no flow during parts of some years.

Remarks. Records poor. Many diversions and several storage reservoirs in basin above 

 EFiTs' station, principally above Elsinore Lake. No water wasted from Lake Jfethews 

during year.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3

4 

5

6 

7

a

9 

10

11 

12 

13 

14 

15

16 

17 

IB 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. HOT. Dee. Jan.

o 

0 

0 

0 

0

0 

0 

0 

0 

0

.1

0 

0

o 

o

0

o 

0 

0 

0

o

0 

0 

0 

0

0 

0

o

0 

0 

0

Feb.

0 

0

o

0 

0

.7 

0

o

0 

0

o

0 

0 

0

o

o 

o 

0 

o

0 

0

o 

o 

o

0 

0

o

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

wa

nber .

idler. ............------.-------- -------

lendar year 194S 

ftry

ter year 1949-50 .......................

Mar. Apr.

Secondfoot-days

0 

0

o

.49

.1 

.7 

0 

0 

0 

0 

0 

0 

0

.8

May

Maximum

0 

0 

0

.1

.1

.7 

0 

0 

0 

0

o

0 

0

.7

June July

Minimum

0 

0 

0

0

O 

0 

0

o

0 

0 

0 

0 

0

0

Aug.

Mean

0 

O

0

.001

.003 

.02 

0 

0 

0 

0 

0 

0 

0

.002

Sept.

Runoff In 

aere-feet

0 

0 

0

1.0

.2 

1.4 

0 

0 

0 

0 

0 

0 

0

1.6

Bautista Creek near Hemet, Calif.

Location. Water-stage recorder, lat. 33°41'40", long. 116 0 51'00", in NE&3w£ sec. 35, T. 

b a., R. 1 E., 6 miles above mouth and 8 miles southeast of Hemet. Altitude of gage, 

about 2,250 feet (from topographic map).

Drainage area. 39.4 square miles. 

Records available. October 1947 to September 1950.

Extremes. No flow during year.

1347-50: Maximum discharge, 10 second-feet (estimated) Dec. 5, 1947, Peb. 5, 1948 

(gage height, 2.82 feet).

Remarks.--No flow since Mar. 25, 1948. One diversion above station for irrigation; no 

water diverted during 1950 water year.
SANTA ANA RIVER BASIN 

San Antonio Creek near Claremont, Calif.

75

Location, Water-stage recorder and broad-crested weir, lat. 34 0 12'50 1', long. IIVMO'OO", 

in HWtSEt sec. 36, T. 2 N., R. 8 W., 0.5 mile upstream from Southern California Edison 

Co.'s Sierra power plant and 8 miles northeast of Claremont. Altitude of gage, about 

3,400 feet.

Drainage area. 16.9 square miles.

Records available. March 1901 to September 1950.

Average discharge. 33 years (1917-50), 10.5 second-feet. Average combined discharge of 

creeK ana conault, 33 years (1917-50), 23.3 second-feet.

Extremes. Maximum discharge during year, 10 second-feet Dec. 18 (gage height, 1.34 feet); 

minimum daily, 0.1 second-foot Oct. 1 to 5.

1917-50: Maximum discharge, 21,400 second-feet Mar. 2, 1938, by slope-area and 

rainfall-runoff studies; minimum discharge, less than 0.1 second-foot for several days 

In October 1934.

Remarks. Records good. Southern California Edison Co.'s conduit diverts water above 

station (see p. 77).

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

£9 

30 

31

Oct.

0.1.1 .1 .1 .1

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.3

.4

.4 

.3 

.3 

.3 

.3

.-3 

.2 

.2 

.2 

.2 

.2

Nov.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

1.0

.6 

.9 

.7 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.5

Dec.

0.4 

.4 

.4 

.3 

.4

.4

.3 

.5 

.4 

.5

.5 

.5 

.5 

.4 

.4

.4 

.4 

3.0 

3.1 

3.7

2.0 

1.1 

.8 

.9 

.8

.7 

.7 

.7 

.7 

.7 

.7

Jan.

0.6 

.6 

.6 

.6 

.6

.6 

.5 

.8 

.7 

.7

.8 

.8 

.8 

,S 

.8

.7

.7 

.7 

.7 

.8

.7 

.7 

.8 

.8 

.8

.8 

.7 

.7 

.7 

.7 

.7

Feb.

0.6 

.6 

.6 

.6 

.6

1.6 

2.3 

3.2 

1.8 

1.7

1.6 

1.6 

1.3 

1.2 

1.1

1.0 

1.0 

1.0 

.9 

.9

1.0 

1.0 

.9 

.8 

.8

.8 

.8 

.8

Month

Octo 

Hove 

Deca

Ca

Janu 

ftebr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wa

Dber. ...........--------.------------.--

lendar year 1949 

apy

h. ......................................

ter year 1949-50 .......................

Mar.

0.8 

.8 

.7 

.7 

.6

.6 

.7 

.7 

.6 

.6

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.6 

.8 

1.2 

1.1

1.1 

1.1 

1.0 

.9 

.9 

.8

Apr.

0.8 

.7 

.6 

.5 

.5

.6 

.6 

1.1 

1.1 

1.2

1.2 

1.1 

1.1 

1.0 

1.0

1.0 

.9 

.8 

.8 

.7

.7 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

Secondfoot -days

6.9 

15.2 

26.7

207.7

22.0 

32.1 

21. S 

23.4 

17.0 

12.0 

6.6 

6.2 

7.8

197.7

May

0.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.5 

.5 

.5 

.5 

.4

.5 

.6 

.6 

.6 

.6

.5 

.5

.6 

.6 

.6

.6 

.6 

.5 

.4 

.4 

.4

Maximum

0.4 

1.0 

3.7

3.7

.S 

3.2 

1.2 

1.2 

.6 

.5 

.3 

.2 

.3

3.7

June

0.4 

.4 

.4 

.4 

.4

.4 

.5 

.5 

.4 

.4

.t 

.4 

.5 

.5 

.5

.5 

.5

.3 

.3 

.3

.2 

.2

July

O.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

.3 

.3

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Minimum

0.1 

.2 

.3

.1

.5

.6 

.5 

.5 

.4 

.2 

.2 

.2 

.2

.1

Aug.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.2

.2

.2 

.2 

.2

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Mean

0.2E 

.51 

.86

.57

.71 

1.15 

.70 

.78 

.55 

.40 

.21 

.20 

.26

.54

Sept.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3

.3

.3 

.5 

.3

.3 

.3 

.3

.2 

.2

Runoff In 

acre-feet

14 

30 

53

412

44 

64 

43 

46 

34 

24 

13 

12 

15

392

Peak discharge (base, 10 sec.-ft.). Ho peak above base.
76 SAHTA ANA RIVER BASIN

Combined discharge, in second-feet, of San Antonio Creek and Southern California Edison Co.'s 

conduit near Claremont, Calif., water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

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.

5.1 

5.1 

5.1 

5.1 

5.1

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.3 

5.3 

5.3 

5.4

5.4 

5.3 

5.3 

5.3 

5.3

5.3 

5.2 

5.2 

5.2 

5.2 

5.2

Hov.

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.3 

9.0

6.1 

6.4 

6.2 

6.0 

6.0

6.0 

5.8 

5.8 

5.8 

5.8

5.8 

5.8 

5.8 

5.8 

5.8

5.8 

5.8 

5.8 

5.8 

5.7

Dec.

5.6 

5.6 

5.6 

5.3 

5.4

5.4 

5.3 

6.1 

5.7 

5.8

5.8 

5.5 

5.5 

5.4 

5.4

5.4 

5.4 

12 

11 

11

8.5 

7.2 

7.0 

7.0 

7.0

6.9 

6.7 

6.7 

6.7 

6.7 

6.7

Jan.

6.6 

6.6 

6.6 

6.6 

6.5

6.5 

6.4 

7.2 

7.1 

7.2

7.3 

7.2 

7.2 

7.0 

7.0

6.9 

6.9 

6.9 

6.9 

7.0

6.9 

6.9 

7.0 

7.0 

7.0

7.0 

6.9 

6.9 

6.9 

6.9 

6.9

Feb.

6.8 

6.8 

6.8 

6.8 

6.8

10 

11 

13 

13 

13

13

13 

12 

12 

13

13 

14 

14 

14 

15

16 

16 

16 

16 

16

16 

16 

16

Month

Octo 

Hove 

Decs

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

fcer year 1949-50 .......................

Mar.

16 

16 

15 

15 

15

15 

15 

15 

14 

14

14 

14 

14 

14 

14

12 

12 

12 

12 

12

12 

13 

13 

13 

13

13 

13 

12 

12 

12 

12

Apr.

11 

11 

11 

10 

10

11 11

12 

12 

12

11 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

Secondfoot-days

161.9 

173.7 

205.3

T 2,851.8

213.9 

355.0 

418 

350 

352.5 

256.4 

216.5 

183.4 

159.3

3,045.9

May

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

11

12

12 

12 

12 

12

10 

10 

12 

12

11

10 

10 

10 

9.7 

9.4 

9.4

Maximum

5.4 

9.0

12

fg

7.3 

16 

16 

12 

12 

9.4 

7.5 

6.4 

5.4

16

June

9.4 

9.4 

9.2 

9.2 

8.9

8.9 

9.0 

9.0 

8.9 

8.9

8.9 

8.9 

8.7 

8.7 

8.7

8.7 

8.5 

8.4 

8.1 

8.1

8.1 

8.1 

8.1 

8.1 

8.1

8.0 

8.0 

8.0 

7.7 

7.7

July

7.5 

7.5 

7.5 

7.2 

7.2

7.2 

7.2 

7.2 

7.3 

7.1

7.1 

7.1 

7.2 

6.9 

6.9

6.9 

6.9 

6.9 

6.9 

6.9

6.9 

6.7 

6.7 

6.7 

6.7

6.7 

6.7 

6.7 

6.7 

6.7 

6.7

Minimum

5.1 

5.2 

5.3

5.1

6.4 

6.8 

12 

10 

9.4 

7.7 

6.7 

5.3 

5.2

5.1

Aug.

6.4 

6.4 

6.4 

6.4 

6.4

6.4 

6.4 

6.4 

6.4 

6.4

6.4 

6.4 

6.4 

6.2 

6.2

5.7 

5.7 

5.7 

5.7 

5.7

5.7 

5.5 

5.5 

5.5 

5.3

5.3 

5.3 

5.3 

5.3 

5.3 

5.3

Mean

5.22 

5.79 

6.62

7.82

6.90 

12.7 

13.5 

11.7 

11.4 

8.55 

6.99 

5.92 

5.31

8.34

Sept.

5.3 

5.3 

5.2 

5.2 

5.3

5.3 

5.3 

5.3 

5.3 

5.3

5.4 

5.4 

5.4 

5.4 

5.4

5.4" 

5.4 

5.3 

5.3 

5.3

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

5.3 

5.3 

5.2 

5.2

Runoff in 

acre-feet

521

345 

407

5,660

424

704 

629 

69'4 

699 

509 

429 

364 

316

6,040
SANTA ANA RIVER BASIN 77

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

Locatiom. At Southern California Edison Co.'s Sierra power plant, lat. 34°12'45", long, 

"3U'15", in NW^SE^ 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 1950. 

Average discharge. 33 years, 12.8 second-feet.

Remarks.--Conduit diverts water from San Antonio Creek in SE^ sec. 25, T. 2 N., R. 8 W., 

T~mTle 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 by Southern California Edison Co.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0 

5.0

Nov.

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

8.0

5.5 

5.5 

5.5 

5.4 

5.4

5.4 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

Dec.

5.2 

5.2 

5.2 

5.0 

5.0

5.0 

5.0 

5.6 

5.3 

5.3

5.3 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

8.5 

S.O

7.0

6.5 

6.1 

6.2 

6.1 

6.2

6.2 

6.0 

6.0 

6.0 

6.0 

6.0

Jan.

6.0 

6.0 

6.0 

6.0 

5.9

5.9 

5.9 

6.4 

6.4 

6.5

6.5 

6.4 

6.4 

6.2 

6.2

6.2 

6.2 

6.2 

R.2 

6.2

6.2 

6.2 

6.2 

6.2 

6.2

6.2 

6.2 

6.2 

6.2 

6.2 

6.2

Feb.

6.2 

6.2 

6.2 

6.2 

6.2

8.4 

9.0

10 

11 

11

11 

11 

11 

11 

12

12 

13 

13 

13

14

15 

15 

15 

15 

15

15 

15 

15

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

ter year 1949-50 .......................

Mar.

15

15 

14 

14 

14

14 

14 

14 

13 

13

13 

13 

13 

13 

13

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

11 

11 

11 

11

Apr.

10 

10 

10 

10 

10

10 

1011 11 11

1011 1111 11

11 11 11 11 11

11 11 11 11 11

11 11 11 11 11

Secondfoot-days

155.0 

158.5 

177.9

2,641.9

191.9 

321.4 

393 

322 

328.1 

244.4 

209.9 

177.2 

151.5

2,830.8

May

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

10 

1011 11

10

9.6 

9.6 

9,6 

9.3 

9.0 

9.0

Maximum

5.0 

8.0 

8.5

18

6.5 

15 

15 

11 

11 

9.0 

7.3 

6.2 

5.1

15

June

9.0 

9.0 

8.8 

8.8 

8.5

8.5 

8.5 

8.5 

8.5 

8.5

8.5 

8.5 

8.2 

8.2 

8.2

8.2 

8.0 

8.0 

7.7 

7.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7- 

.5 

7.5

July

7.3 

7.3 

7.3 

7.0 

7.0

7.0 

7.0 

7.0 

7.0 

6.8

.6.8 

6.8 

7.0 

6.7 

6.7

6.7 

6.7 

6.7 

6.7 

6.7

6.7 

6.5 

6.5 

6.5 

6.5

6.5 

6.5 

6.5 

6.5 

6.5 

6.5

Aug.

6.2 

6.2 

6.2 

6.2 

6.2

6.2 

6.2 

6.2 

6.2 

6.2

6.2 

6.2 

6.2 

6.0 

6.0

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.3 

5.3 

5.3

5.1

5.1 

5.1 

5.1 

5.1 

5.1 

5.1

Minimum j Mean

5.0 5.00 

5.0 5.28 

5.0 5.74

5.0 7.24

5.9 6.19 

6.2., 11.5 

11 12.7 

10 10.7 

9.0 10.6 

7.5 8.15 

6.5 6.77 

5.1 5.72 

.5.0 5.05

5.0 7.76

Sept.

5.1 

5.1 

5.0 

5.0 

5.1

5.1 

5.1 

5.1 

5.1

5.1

5.1 

5.1 

5.1 

5.1 

5.1

5.1 

5.1 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

Runoff in 

acre-feet

307 

314 

353

5,240

381 

637 

730 

639 

651 

485 

416 

351 

300

5,610
78 SANTA ANA RIVER BASIN

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

Location. Staff gage, lat. 33 G47'10 n , long. 117°43'35n , in Lomas de Santiago Grant, at 

Santiago Dam, 1.5 miles east of Irvine Park and 5 miles east of Villa Park, Orange 

County. Datum of gage is mean sea level.

Drainage area. 63 square miles.

Records available. October 1931 to September 1950.

Average runoff. 19 years,-14"',410 acre-feet per year (19.9 second-feet).

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

rainfall on the reservoir, computed on the basis of records of storage, draft, spill, 

waste, leakage, and evaporation. This earth-fill dam was completed in December 1931. 

Capacity and area ratings for the reservoir are dated December 1930. Capacity of 

reservoir at spillway level (gage height, 790.0 feet), 25,000 acre-feet. Dead storage 

below lowest outlet Included in these records. Gage read about 5 p.m. on last day of 

each month and on occasional other days. Water released to conduits as required for 

irrigation is called draft; water released back to the creek is called waste. Evaporation is computed from records from a standard U. S. Weather Bureau station at the 

crest of the dam. Spill, waste, and leakage, combined, represent all water passing 

down Santiago Creek from Santiago Dam. Slight regulation and minor diversions in basin 

above this reservoir.

Cooperation. Records of reservoir operation and draft furnished by Serrano and Carpenter 

irrigation Districts and Irvine Ranch.

Revisions (water years). W 1121: 1932-36, 1938 (flood data).

Monthly runoff, water year October 1949 to September 1950

Month

Calendar year .1949......

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

Water year 1949-50......

Santiago Reservoir

Gage 

height 

(feet)t

723.9 

722.3 

721.8 

723.5

-

727.1 

732.7 

734.2 

735.2 

733.5 

732.8 

728.3 

726.6 

725.3

-

Contents 

(acrefeet)

2,070 

1,880 

1,820 

2,020

-

2,480 

3,310 

3,560 

3,740 

3,440 

3,330 

2,650 

2,410 

2,240

-

Change

contents 

(acre- 

 feet)

-190 

-60 

+200

-1,860

+460 

+830 

+250 

+180 

-300 

-110 

-680 

-240 

-170

+170

Draft 

acrefeet)

302

181 

94

4,637

9 

12 

15 

114 

624 

382 

928 

383 259'

3,303

Evaporation 

(acrefeet)

59 

49 

47

838

20 

40 

51 

61 

70 

87 

94 

84 

59

721

Spill, 

waste and 

leakage 

(acrefeet)

0 

0 

O

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Runoff 

(acrefeet)

171 

170

341

3,615

489 

882 

316 

355 

394 

359 

342 

227 

148

4,194

t Gage height at 5 p.m. on last day of month.
SABTA AHA RIVER BASIN 79

Santiago Creek near Villa Park, Calif.

Location. Water-stage recorder and concrete control, lat. 33°49'10", long. H7e 46'3QH , in 

sw£ sec. 13, T. 4 S., R. 9 W., 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.

Rtecords available. June 1920 to September 1950.

Average discharge. 30 years, 8.38 second-feet.

Extremes. Maximum discharge during year, 804 second-feet Feb. 6 (gage height, 4.29 feet); 

no now during several months.

1920-50: 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 fair except those for period of no gage-height record, which are poor. 

 Diversions above station by Irylne Co. and Serrano and Carpenter Irrigation Districts. 

Flow completely regulated by Santiago Reservoir.

Cooperation. Seven discharge measurements furnished by Orange County Flood Control Dlstrict, through J. A. Bradley, flood-control engineer.

Discharge, In second-feet, Mater year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov.

0 

0 

0 

0 

0

0 

0 

0 

0 

105

.1 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

0 

0

o

0 

0 

0 

0 

0

Dec.

0 

0 

0

o

0

0 

0 

0 

0 

0

o

0 

0 

0 

0

0 

0 

4.3 

55

.1

.1 

.1 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0

o

0 

0 

ao

ao 

aO 

aSO 

a2 

.3

2.0 

3.6 

.8 

.5 

.3

.2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.3 

.2 

.1

Feb.

0.1 

.1 

.1 

.1

.1

116 

3.1 

.7 

.4

.2

.1 

O 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o

0 

0

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

»y.

June 

July 

Augu 

Sept

H«

riber. ...........------------.-- --------

lendar year 194! 

ary

Bt. .....................................

ter year 1949-50 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

13 

2.6

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

37 

1.2 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

o 

0

b

0 

0

Seoondfoot-daya

0 

105.1 

59.6

236.4

61.6 

121.0 

15.6 

36.2 

3.6 

.5 

0 

0 

0

405.2

Hay

0 

0 

0 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.7 

2.5

.4

0

o

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

105 

55

105

50 

116 

13 

37 

2.5 

.2 

0 

0 

0

116

June

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

o

0

0

0 

.2.1

.2

0

July

M1n1imi»

0 

0 

0

0

0 

0

o

0 

0 

0

o

0

o

0

Aug.

Mean

o

3.50 

1.92

.65

1.99

4.32 

.50 

1.27 

.12 

.02 

0 

0 

0

1.11

Sept.

Runoff IB 

acre-feet

0 

2O8 

118

~ «i

122 

240 

31 

78 

7.1 

1.0 

0 

0 

0

803

a Ho gage-height record; discharge computed on basis of recorded range la stage, weather records, 

and records for Santiago Creek at Santa Ana and Santa Ana River at Santa Ana.
80 SANTA ANA RIVER BASIN

Santiago Creek at Santa Ana, Calif.

Location. Water-stage recorder, lat. 33°46'10", long. 117°52'55", in Santiago de Santa Ana 

 Grant, at end of Baker Street, Santa Ana, Orange County, 2,000 feet upstream from mouth. 

Altitude of gage, about 120 feet.

Records available. January 1929 to September 1950. 

Average discharge.--21 years, 6.49 second-feet.

Extremes. Maximum discharge during year, 1,040 second-feet Feb. 6 (gage height,,6.00 feet); 

no now during most of year.

1929-50: Maximum discharge, 4,400 second-feet Mar. 2, 1938 (gage height, 8.36 feet, 

present datum), from rating curve extended above 1,200 second-feet by logarithmic 

plotting; no flow during most of each year.

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

Regulation by Santiago Reservoir. Diversions above station by Irvine Co. and Serrano 

and Carpenter Irrigation Districts. During each winter season, some water originally 

diverted from Santa Ana River by Santa Ana Valley Irrigation Co.'s canal is occasionally 

wasted into Santiago Creek 3 miles above station.

Cooperation. Nine discharge measurements furnished by Orange County Flood Control District, 

through J. A. Bradley, flood-control engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

i

2

3

4 

5

6 

7

a

9

10

11

12 

13 

14 

15

16 

17is

19 

20

21 

22 

23 

24

25

26 

27 

26 

29 

30 

31

Oct. Nov.

0 

0 

0 

O 

0

0 

0 

0 

0 

9.3

.2 

0 

O 

0 

0

O 

0 

0 

0 

0

O 

0 

O 

0 

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

0 

O

o

0

0 

0 

0 

0 

0

0 

0 

6.7 

76 

.3

1.3 

9.7 

10 

9.6 

7.8

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

ao

aO 

aO 

a5 

45 

.4

3.3

16 

1.5 

.2 

O

O 

O 

0 

0 

O

O 

O 

O 

O 

0

O 

0 

0 

.5 

0 

0

Feb.

0 

0 

0

o

0

140 

1.2 

O 

0 

1.4

O 

0 

0 

0 

0

0 

O 

0 

0 

0

0 

0 

0 

0 

aO

aO 

aO 

aO,

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Ha

ber. ....................................

 ber. ...................................

lendar year 1949 

ary

h. ......................................

Bt. ... ^. ................................

ter year 1949-50 .......................

Mar.

aO 

aO 

aO 

aO 

aO

aO 

aO 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

O 

2.4 

1.9

0 

0 

0 

0 

0 

0

Apr.

0

0 

0 

O 

0

o

0 

24 

14 

1.7

O 

O 

0 

0 

0

0 

0 

O 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Seoondfoot-days

0 

9.5 

121.4

161.6

71.9 

142.6 

4.3 

39.7 

0 

0 

0 

0 

0

389.4

May

Maximum

0 

9.3 

76

76

45

140 

2,4 

24 

0 

0 

0 

0 

0

140

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 0 ' 

'0 

0

0

Aug.

Mean

0 

.32 

3.92

.44

2.32 

5.09

.14 

1.32 

0 

0 

0 

0 

0

1.07

Sept.

Runoff In 

acre-feet

0 

19 

241

321

143 

283 

8.5 

79 

0 

0 

0 

0 

0

774

Peak discharge (base. 120 sec.-ft,). Dec. 19 (5 a.m.) 570 sec.-ft.j Jan. 8 or 9 (time unknown) 

455 seo.-rt.j Feb. 6 (11:30 a.m.) 1,040 sec.-ft.j Apr. 8 (9s30 p.m.) 554 sec.-ft..

a HO gage-height record; discharge computed on basis of recorded range In stage, weather records, 

and records tor Santiago Creek: near Villa Park and Santa Ana River at Santa Ana.
SAN GABRIEL RIVER BASIN 81

East Pork San Gabriel River near Camp Bonita, Calif.

Location. Water-stage recorder, lat. 34°14'12", long. 117°48'30", in SEj 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 Pork, and 2.5 miles west of Camp Bonita. Datum of gage is 1,567.04 

feet above mean sea level (levels by Los Angeles County Flood Control District).

Drainage area. 88.2 square miles.

Records available. December 1932 to September 1950.

Average discharge. 17 years (1933-50), 81.1 second-feet.

Extremes^ Maximum discharge during year, 248 second*-feet Feb. 6 (gage height, 7.8.9 feet); 

minimum discharge, 5.1 second-feet Sept. 1.

1932-50: 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.

Remarks.--Records good. No diversion or regulation above station.

Cooperation. Records furnished by Los Angeles County Flood,Control District, through H. E. 

liedger, chief engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.9 

7.9 

7.9 

7.9 

8.2

8.6 

9.0 

9.0 

9.0 

9.0

8.6 

8.2 

8.2 

8.2 

8.2

9.3 

8.6 

8.6 

8.6 

8.6

9.0 

9.3 

9.3 

9.3 

9.0

9.3 

9.6 

9.3 

9.0 

8.8 

8.5

Nov.

8.2 

8.5 

8.8 

8.8 

8.8

8.5 

8.5 

8.8 

9.3 

73

37 

25 

19 

17 

16

16 

15 

15 

14 

14

14 

13 

14 

14 

14

13 

13 

13 

12 

12

Dec.

11 

11 

12 

12 

12

12 

13 

14 

14 

13

12 

12 

12 

12 

12

12 

12 

47 

129 

60

43 

36 

32 

29 

28

27 

26 

24 

24 

24 

24

Jan.

23 

23 

22 

22 

22

22 

21 

30 

38 

29

33 

33 

29 

28 

27

26 

26 

26 

28 

29

30 

32 

34 

34 

35

34 

32 

32 

34 

31 

30

Feb.

28 

28 

27 

26 

27

168 

149 

35 

28 

78

75 

70 

65 

61 

59

56 

54 

51 

49 

47

47 

46 

46 

44 

42

41 

40 

39

Month

Octo 

Move 

Deee

Ca

Janu 

Febr 

Hare 

Aprl 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 194E

ter year 1949-50 .......................

Har.

38 

38 

36 

35 

34

34 

34 

34 

33 

32

32 

32 

32 

31 

31

30 

29 

29 

29 

29

29 

28 

28 

36 

47

36 

33 

31 

30 

29 

28

Apr.

28 

28 

29 

29 

30

30 

29 

42 

52 

44

40 

38 

38 

38 

38

37 

35 

35 

34 

34

35 

36 

36 

35 

34

32 

32 

32 

31 

30

Secondfoot-days

269.9 

471.2 

761

7,936.5

895 

1,526 

1,007 

1,041 

723 

432 

296.2 

210.8 

199.3

7,832.4

May

31 

31 

29 

28 

28

28 

27 

26 

26 

25

24 

24 

23 

23 

23

23 

23 

23 

23 

22

21 

21 

21 

21 

21

20 

19 

18 

17 

17 

17

Maximum

9.6 

73 

129

129

38 

168 

47. 

52 

31 

17 

11 

8.1 

8.1

168

June

17 

17 

17 

16 

15

17 

16 

15 

14 

14

15 

15 

15 

15 

15

15 

15 

14 ' 14

14

13 

13 

14 

14 

14

13 

12 

12 

11 

11

July

11 

11 

10 

11 

11

11

11 

11 

11 

11

10 

9.8 

9.3 

9.3

9.6

9.6 

9.6 

9.6 

9.3 

9.3

9.0 

9.0 

8.7 

8.7 

8.4

8.1 

8.1 

7.9 

7.9 

7.9 

8.1

Minimum

7.9 

8.2 

11

6.3

21 

26 

28 

28 

17 

11 

7.9 

5.8 

5.4

5.4

Aug.

8.1 

8.1 

7.9 

7.6 

7.6

7.6 

7.4 

7.4 

7.2 

7.2

7.2 

7.2 

7.2 

7.2 

7.2

7.0 

6.7 

6.5 

6.3 

6.3

6.3 

6.0 

6.0 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

5.8 

5.8

Mean

8.71 

15.7 

24.5

21.7

28.9 

54.5 

32.5 

34.7 

23.3 

14.4 

9.55 

6.80 

6.64

21.5

Sept.

5.6 

5.4 

5. "4 

5.6 

5.8

6.9 

8.1 

7.4 

7.2 

7.2

7.2 

7.2 

7.0 

7.0 

7,0

7.2 

7.2 

7.2 

7.0 

6.7

6.7 

6.5 

6.5 

6.8 

6.5

6.5 

6.0 

6.0 

6.0 

6.5

Runoff In 

acre -feet

535 

935 

1,510

15,750

1,780 

3,030 

2,000 

2,060 

1,430 

857 

588 

418 

395

15,540
82 SAN GABRIEL RIVER BASIH

San Gabriel River near Azusa, Calif.

Location. Water-stage recorder, lat. 34°10ilO", long. 117"53'16", in Sw£ sec. 13, T. 1 

 N., 'R, 10 W., 1 mile downstream from Morris Dam and 3 miles northeast of Azusa. Datum

of gage la 867.59 feet above mean sea level (from Los Angeles County Flood Control

District bench mark). Prior to May 9, 1950, at datum 4.35 feet higher. 

Drainage area. 211 square miles. 

Kecoras available. 1894 to September 1950. 

Average discharge. 54 years U896-1950), 111 second-feet. Average combined discharge of

river ana diversions, adjusted for storage and evaporation in Morris Reservoir and

San Gabriel River flood-control reservoirs Nos. 1 and 2, 55 years (1895-1950), 160

second-feet. 

Extremes. Mazlmum discharge during year, 8.2 second-feet July 31, Aug. 1 (gage height,

5,17 feet); no flow during most of year.

1894-1950: Maximum discharge, 65,700 second-feet Mar. 2, 1938, by computation of

flow over spillway at Morris Dam; no flow for several months in each year 1894-1936,

1940, 1941, 1947-50. 

Remarks. Records fair. Flow regulated by San Gabriel flood-control reservoirs 1 and 2,

anZTby Morris Reservoir of Metropolitan Water District of Southern California. Azusa

Canal (formerly power canal of Southern California Edison Co.) diverts above high water

level of Morris Reservoir at point about 3 miles above station. 

Comerytion. Two discharge measurements furnished by Los Angeles County Flood Control

Jistrrict, through H, E, Hedger, chief engineer, 

(water years). W 961: 1941.

 Discharge, In second-feet, water year October 1949 

to September 1950

Day

1 

2 

3 

4 

5 

6 

7 

8 

9 

10

July

0 

O

0 

0 

0 

0 

0 

0 

0 

0

Month

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

Jsnvt&Ty

February

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

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

5*e ..........................

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

Wat«r year 1949-50 ..........

Aug.

7.2 

1.7 

.4 

0 

0 

0 

0 

0 

0 

0

Day

11 

12 

13 

14 

15 

16 

17 

18. 19 N 

20

Secondfoot-days

0 

0

o

1,412.2

0 

0 

O 

0 

0 

0 

16.4 

9.3 

0

25.7

July

O

0 

0 

0 

0 

0 

0 

0 

0 

0

Maximum

0

o

0

42

0 

0 

0 

0 

O 

0 

7.9 

7.2 

O

7.9

Aug.

0 

0 

0 

0 

0

o

0 

0 

0 

0

Day

21 

22 

23 

24 

25 

26 

2? 

28 

29 

30 

31

Minimum

0 

0 

0

o

o 

o

0 

0

o 

o 

o

0 

0

0

July

O

0 

0 

0 

0 

0 

0 

0 

1.3 

7.2 

7.9

Mean

0 

0 

0

3.87

0 

0 

0 

0 

0 

0 

.53 

.30 

0

.07

Aug.

0 

0 

0 

0 

0 

0 

0

o

0 

0 

0

Runoff In acre-feef

Ban Gabriel 

River

0 

0 

0

2,300

0 

0 

0 

0 

0 

O 

33 

18 

0

51

San Gabriel River 

and Azusa Canal t

811 

1,670 

3,390

27, 350

3,730 

6,O10 

3,360 

3,590 

2,340 

1,310 

801 

6ft7 

603

£6,220

t Combined runoff of river and Azusa Canal, adjusted for storage and evaporation in Morris Beservoir and San Gabriel River flood-control reservoirs 1 and 2, using record furnished by Metropolitan 

Water District of Southern California. These figures of runoff are equivalent to combined records 

of San Gabriel River and Southern California Edison Co.'s canal as published from 1894 to 1933.

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

Location. Water-stage recorder, lat. 34°06>40", long. 117°58'20", 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.

Kecoras available. October 1942 to September 1950.

Extremes. tip now during year.

1942-50; Maximum discharge, 6,700 second-feet Jan. 24, 1943; no flow during several 

months of each year.

Remarks. Ho flow since June 8, 1948. Flow regulated by San Gabriel flood-control reservoirs 1 and 2, by Morris Reservoir of Metropolitan Water District of Southern California, and during high discharge by Santa Fe .flood-control basin. Canal diversions 

upstream. During current year there was no diversion to the Rio Hondo.

Cooperation. Gage-height record and several observations of no flow furnished by Corps 

or Engineers.
SAM GABRIEL RIVER BASIN 

San Gabriel River at Pico, Calif.

83

Location. Water-stage recorder, lat. 34 C 00'20", long. 118 0 04 t 05R , in Paso De Bartolo 

Crrant; at Severly Boulevard Bridge, 0.5 mile east of Pico, Los Angeles County. 

Altitude of gage, about 180 feet.

Drainage area. 206 square miles (excluding area above Santa Pe Damj. 

Records available. October 1928 to September 1950. 

Average discharge.--22 years,51.3 second feet.

Extremes.--Maximum discharge during year , 845 second-feet Feb. 6 (gage height, 9.84 feet); 

no now during most of year.

1928-50: Maximum discharge, 22,700 second-feet Mar. 2, 1938; no flow for periods 

each year.

Remarks. Records good below 20 second-feet, fair 20 to 200 second-feet, and poor above. 

Flow? regulated by San Gabriel flood control reservoirs 1 and 2, by Jtorris Reservoir of 

Metropolitan Water District of Southern California, during high discharge by Santa Pe 

flood-control basin, Big Daton flood-control dam, Puddingstone diversion dam, 

Puddingstone flood-control dam, Live Oak flood-control dam, and Thompson Creek floodcontrol dam. Diversions above station for irrigation, power development, and groundwater replenishment.

Cooperation. Records furnished by Los Angeles County Flood Control District, through H. E-. 

Heager, chief engineer.

Revisions (water years).--W 881: 1937.

Discharge, in second-feet, water year October 1949 to September 1350

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

 13 

14

15

16 

17 

18 

19 

20

21 

22 

23

*4 

25

26 

27 

28 

29 

30 

31

Oct. HOT. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0

0 

0 

31 

SO

17 

18 

16 

15 

15

14 

13 

13 

13 

12 

. 12

Jan.

14 

14 

15 

16 

16

18 

16 

IS 

39 

17

29 

59 

26 

24 

22

22 

21 

SO 

21 

22

23 

23 

22

21 

20

21 

22 

23

35 

27 

24

Feb.

22 

20 

19 

21 

22

272 

33 

22 

22 

27

28 

22

20 

19 

18

18 

18 

19 

19 

18

20 

23 

23 

22

21

20 

18 

17

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

MAw

June 

July 

Augu 

Sept

Wa

b«r. ....................................

 bear. ...................................

lendar year 1949 

ary *

............

ter year 1949-50 .......................

Mar.

16 

17 

18 

19 

18

19 

13 

20 

20 

21

20 

18 

19 

18 

18

17 

S.I 

0 

0 

0

0 

0 

0 

.7 

6.4

.4

0 

0 

0 

0 

0

Apr.

0 

, 0 

0 

0 

O

0 

0 

0 

0 

2.8

1.8 

2.1 

.9 , 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

0 

0 

207

3,191.7

707 

843 

312.6 

7.6 

5.4 

0 

0 

0 

Q

2,082.6

Way

0 

.5 

1.4 

2.4 

1.1

0 

0 

O 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

31

77

58 

272 

21 

2.8 

2.4 

0 

0 

0 

0

272

June July

Minimum

0 

0 

0

0

14 

17 

0 

0 

0 

0 

0 

0 

O

0

Aug.

Mean

0 

0

6.7

8.74

22.8 

30.1 

10.1 

.25 

.17 

0 

0 

0 

0

s.n

Sept.

Runoff In 

acre-feet

0 

0 

411

6,330

1,400 

1,670 

620 

15 

11 

0 

0 

0 

0

4,130
84 SAN GABRIEL RIVER BASIN

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

Location. Water-stage recorder, lat. 33°48'40 n , long. 118°05 I 30", in Los Alamitos Grant, 

at spring Street Bridge, 1.5 miles west of Los Alamitos, Orange County. Datum of gage 

is 16.69 feet above mean sea level (levels by Los Angeles County Flood Control District)

Drainage area.--216 square miles (excluding area above Santa Fe Dam).

Hecoras available. October 1936 to September 1950 in reports of Geological Survey.

 iaaY-36 in files of Los Angeles County Flood Control District.

Average discharge. 23 years (1927-50), 30.7 second-feet.

Jsxtremes.--Mo rlow during year.

1936-50: Maximum discharge, 27,300 second-feet (estimated) Mar. 2, 1938; no flow 

during several months of each year.

Remarks. No flow since Mar. 25, 1947. Flow regulated by many reservoirs above station. 

Rany diversions above station for domestic use and irrigation.

Cooperation. Records furnished by Los Angeles County Flood .Control District, through H. E. 

neager, chief, engineer.

West Fork San Gabriel River at Camp Rincon, Calif.

Location. Water-stage recorder, lat. 34°14'30", long. 117°51 l 50lt , near center of sec. 19, 

T7~2~N,, R. 9 W., 0.2 mile upstream from Camp Rincon, '0.5 mile downstream from Nlorth 

Pork San Gabriel River, and 6 miles downstream from San Gabriel dam No. 2. Datum of 

gage is 1,474.94 feet above mean sea level (levels by Los Angeles County Flood Control 

District).

Drainage area. 102 pquare miles.

Records available.--October 1927 to September 1950.

Average discharge.--23 years, 72.2 second-feet.

Extr&mes. Maximum discharge during-year, 280 second-feet Dec. 18 (gage height, 8.77 feet); 

minimum daily discharge, 2.2 second-feet Oct. 12-16.

1927-50: Maximum discharge, 34,000 second-feet (estimated) Mar. 2, 1938; no flow 

at times in 1928, 1929.

Remarks. Records good. Plow partly regulated by San Sabriel dam No. 2, 6 miles above 

station. No diversions.

Cooperation. Records furnished by Los Angeles County Flood Control District, through 

a. a., uedger, chief engineer.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.3 

2.3 

2.3 

2.3 

2.3

2.3 

2.4 

2.4 

2.4 

2.4

2.3 

2.2 

2.2 

2.2 

2.2

2.2. 

2.4 

2.6 

2.8 

2.9

2.9 

2.9 

2.9 

2.9 

2.9

2.9 

2.9 

2.9 

2.8 

2.8 

2.8

Nov.

2.8 

2.8 

2.9 

2.9 

2.9

2.9 

3.0 

3.0 

3.7 

55

23 

12 

8.9 

8.6 

8.2

7.3 

7.0 

6.3 

6.0 

6.0

6.0 

6.0 

5.8 

5.8 

5.8

5.8 

6.0 

6.0 

6.0 

6.0

Dec.

6.0 

5.S 

5.S 

5.8 

6.0

6.3 

6.3 

9.5 

9.7 

7.9

7.3 

7.3 

7.3 

7.3 

7.3

7.3 

7.3 

84 

122 

46

28 

26 

22 

19 

17

16 

16 

15 

15 

15 

14

Jan.

14 

14 

14 

14 

14

13 

13 

32 

42 

22

30 

32 

24 

23 

22

21 

20 

22 

23 

23

23 

22 

22 

22 

21

20 

19 

20 

24 

20 

19

Feb.

19 

17 

17 

16 

16

111 

79 

56 

45 

45

44 

36 

33 

30 

29

28 

27 

26 

24 

23

22 

24 

29 

28 

27

26 

27 

26

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc

Apr!

June 

July 

Augu 

Sept

Ha

lendar year 1949

uax*y .... ... . ..

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

ter year 1949-50 .......................

Mar.

26 

26 

26 

26 

26

24 

17 

16 

15 

15

15 

15 

15 

15 

14

14 

13 

13 

13 

13

12 

12 

12 

17 

27

17 

16 

15 

14 "13 

13

Apr.

12 

12 

12 

12 

13

14 

14 

44 

41 

26

22 

20 

19 

20 

19

17 

17 

16 

15 

17

22 

23 

24 

23 

23

23 

23 

24 

23 

21

Secondfoot-days

79.0 

234.4 

575.2

5,580.8

664 ' 

930 

52S 

611 

539 

493 

398 

355.1 

273.1

5,676.8

May

23 

22 

19 

IS 

22

19 

17 

17 

19 

18

17 

17 

17 

17 

16

13 

19 

19is

17

16 

15

IS 

IS 

16

17 

16 

15 

15 

14 

15

Maximum

2.9 

55 

122

122

42 

111 

27 

44

23

19 

14 

15

12

122

June

15 

19 

19 

19 

18

19 

19

18 

17 

17

17 

17 

17 

17 

16

17 

17 

16 

15 

15

15

15 

15 

IS 

15

15 

15 

15 

14 

15

July

14 

14 

14 

14 

14

14 

14 

14 

14 

13

13 

13 

12 

14 

14

14 

14 

14 

13 

13

13 

12 

12 

11 

11

11 

11 

11 

11 

11 

11

Minimum

2.2 

2-. 8 

5.S

2.2

13 

16 

12 

12 

14 

14 

11 

6.6 8.6-

2.2

Aug.

10 

9.7 

9.6 

12

12

11 

11 

11 

11 

12

15 

14 

14 

14 

14

13 

12 

13 

14 

14

14 

14 

14 

15

s.e

8.2 

7.9 

7.9 

7.6 

6.6 

7.0

Mean

2.S5

7.81 

18.6

15.2

21.4 

33.2 

16.9 

20.4 

17.4 . 

16.4 

12. 8 

11.4 

9.10

15.8

Sept.

9.7 

9.2 

9.2 

8.9 

9.2

10 

9.7 

9.2 

9,2 

9.7

9.7 

9.7 

9.2 

9.6 

12

12 

12 

12 

11 

10

7.6 

7.0 

7.0- 

7.3 

7.0

7.0 

6.6

em

7.9 

7.9

Hunoff in 

acre-feet157 

465 

1,140

11,030

1,520

1,840 

1,040 

1,210 

1.070 

97* ^nw

704 

542

11,260
SAN GABRIEL RIVER BASIN 85

Rogers Creek near Azusa, Calif.

Location. Water-stage recorder, lat. 34°03 I 55" ) long. 117°54 I 20", in NW^NW^ sec. 23, T. 

IS., R. 10 W., 0.5 mile upstream from mouth and 2.5 miles north of Azusa. Altitude 

of gage, about 800 feet.

Drainage area. 6.4 square miles.

Records available.--May 1916 to September 1917 (discharge measurements only), October 1917 

to September 1950.

Average discharge.--33 years (1917-50), 3.15 second-feet.

Extremes. Maximum discharge during year, 132 second-feet Dec. 18 (gage height, 4.36 feet); 

no now during several months.

1917-50: Maximum discharge, about 2,600 second-feet Apr. 7, 1926; no flow during 

parts of each year.

Remarks.--Records good. One small diversion above station for Irrigation.

Cooperation. Seven discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

ze

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

4.4

1.0 

.3 

.2 

.1 

.1

.1 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

0

.1 .1 .1

.1 

.1 

.1 

.1 

.1

.1 

.1

26 

23 

9.5

4.6 

2.9 

2.2 

1.5 

1.3

1.0 

.7 

.7 

.7 

.7 

.7

Jan.

0.7 

.6 

.7 

a. 7 

a. 7

a. 7 

a. 7 

a3.4 

4.0 

Z.Z

4.5 

7.0 

4.2 

2.9 

2.5

3.0 

1.7 

1.7 

1.5 

1.5

1.4 

1.4 

1.4 

1.3 

1.2

1.2 

1.2 

1.1 

2.7 

1.1 

1.0

Feb.

0.9 

.S 

.7 

.7 

.7

14 

8.2 

5.8 

3.9 

4.8

4.2 

3.4 

3.1 

2.9 

2.9

2.7 

2.5 

2.3 

2.3 

2.3

2.2 

2.0 

1.8 

1.7 

1.4

1.5 

1.4 

1.2

Month

Ooto 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Mav

June 

July 

Augu 

Sept

Va

her. ....................................

lendar year 1949 

ary

h.......................................

ter year 1949-50 .......................

Mar.

1.2 

1.2 

1.2 

1.1 

1.1

1.0 

1.0 

.8 

.8 

.8

.8

.7 

.7 

.6 

.6

.6 

.7 

.7 

.7 

.7

.7 

.6 

.6 

3.5 

7.1

2.7 

2.2 

1.8

1.4 

1.3 

1.1

Apr.

0.9 

.7 

.7 

.6 

.6

.7 

.7 

2.8 

4.7 

2.3

1.8 

1.5 

1.4 

1.3 

1.3

1.1 

1.0 

1.0 

.8 

.7

.7 

.7 

.9 

.9 

.9

.6 

.8 

.9 

.7 

.7

Secondfoot-clays

0 

6.2 

76.5

235.08

58.9 

82.3 

40.0 

34.6 

13.8 

2.2 

0 

0 

0

314.5

May

0.7 

.7 

.7 

.6 

.5

.5 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.4

.4

.5 

.5 

.4 

.4

.4 

.4 

.4 

.4

.5

.4 

.4

.3 

.3 

.5 

,Z

Maximum

0 

4.4

26

26

7.0 

14 

7.1 

4.7 

.7 

.5 

0 

0 

0

26

June

0.2 

.3 

.3 

.3 

.3

.3 

.2 

.1 

.1 

0

0 

0 

0 

0 

0

0

.1

0 

0 

0

0o 

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

0 

0

0

.6 

.7 

.6 

.6 

.2 

0 

0 

0 

0

0

Aug.

Mean

0 

.21

2.47

.644

1.90 

2.94 

1.89 

1.15 

.45 

.07 

0 

0 

0

.86

Sept.

Runoff in 

acre-feet

0 

12 

152

466

117 

16S 

79 

60 

27 

4.4 

0 

0 

0

625

Peak discharge (base, 35 see.-ft.). Dee. 18 (8:40 p.m.) 152 see.-ft.

a Bo gage-height record} discharge computed on basis of records for Fish Creek near Duarte.

207481 O- 52- 7
86 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£SWi sec. 15, T. IN., R. 10 W., 0.8 mile upstream from mouth of canyon and 3 miles 

northeast of Duarte. Altitude of gage, about 1,000 feet (from topographic map).

Drainage area. 6.5 square miles.

Records available.--July 1916 to September 1950.

Average discharge. 33 years (1917-50), 4.24 second-feet.

Extremes. Maximum discharge during year, 157 second-feet Dec. 18 (gage height, 2.33 feet);

 no flow Aug. 13-28.

1916-50: Maximum discharge, about 2,180 second-feet Apr. 4, 1925; no flow during 

short periods in occasional years.

Remarks. Records good. No diversion or regulation above station.

Cooperation. Nine discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

Revisions (water years).--W 706: 1926.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

?

!10

11

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

I eO.02 

e.08

e.02 

. e.04

 e.Ol

Nov.

. eO.02

.2 

17

2.4 

.8 

.5 

.5 

.5

.5 

.5 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4

.3

Dec.

0.3

.3 

.3 

.2

.2 

.3 

.8 

.7 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

37 

26 

6.3

4.4 

3.0 

2.2 

2.0

1.5

1.4 

1.2 

1.2 

1.1 

1.1 

1.1

Jan.

l.l

1.0 

.8

.7 

.7 

3.2 

3.7 

1.7

6.6 

6.7 

5.3 

4.2 

3.6

3.0 

2.7 

2.5 

2.2 

1.8

1.6 

1.6 

1.5 

1.5 

1.4

1.2 

1.2 

1.5 

3.7 

2.2 

1.7

Feb.

1.5

1.1 

1.1

24 

13 

7.0 

5.9 

5.9

5.7 

4.7 

4.1 

3.6 

3.2

2.9 

2.6 

2.3 

2.2 

2.1

2.0 

2.O 

1.7 

1.7 

1.7

1.6 

1.6 

1.5

Month

Octo 

Nove 

Dece

Ca

Janui 

Febn 

Hare 

Aprl 

MAV

June 

July 

Augu

Sept

Ha

nber. ...................................

lendar year 194' 

sry

3 ........................

ter year 1949-5O .......................

Peak discharge (base, 60 sec. -ft.)

Har.

1.5

1.3 

1.3

1.2 

1.0 

1.0 

.9 

.9

.9 

.9 

.9 

.9 

1.0

l.O 

l.O 

1.0 

.8 

.9

1.0 

1.1 

1.2 

6.3 

9.9

3.2 

2.3 

1.8 

1,6 

1.5 

1.5

Apr.

1.4

1.2 

1.1 

1.0

1.1 

1.0 

5.7 

6.7 

3.2

2.2 

1.7 

1.7 

1.7 

1.7

1.5 

1.4 

1.4 

1.2 

1.2

1.2 

1.4 

1.5 

1.3 

1.3

1.3 

1.3

1.3 

1.2 

1.2

May

1.2 

1.2 

1.2 

1.0

1.0 

1.1 

1.0 

.8 

.7

.6 

.7 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.6

.6 

.6 

.7 

.8 

.8

.7 

.6 

.5 

.6 

.6 

.6

£££. ««1

0.83 

28.16 17 

97.0 37

403. 3§ 37

72.4 6.7 

108.9 24 

52.4 9,9 

52.1 6.7 

24.8 1.2 

10.32 .6 

.37 

.15 

.60

448.03 37

June

0.5 | 

.5

.5 , 

.5 

.4

.5 

.6 

,5 

.4 

.4

.3 

.3 

.3 

.4 

.4

.4 

.4 

.4 

.3 

.3

.3 

.2 

.2 

.3 

.4

.2 

.2 

.1

\ fe.06

Minimum

0.2

-

.7 

1.1 

.8 

1.0 

.5

0

O

July

> 6O.O3 

 e.Ol

Aug.

 eo.Ol

O 

O 

O

O 

0 

O 

0 

0

0 

0 

0 

0o'

0 

0 

0

> e.Ol

Sept.

eO.C

-.,_ Runoff In *ean acre-feet

0.027 1.6 

.939 56 

3.13 192

1.11 798

2.34 144 

3.89 216 

1.69 104 

1.74 103 

.80 49 

.344 20 

.012 .7 

.005 .3 

.020 1.2

1.23 888

. Nov. 10 (8 a.m.) 66 sec. -ft. J Dec. 18 (8:15 p.m.) 157 sec. -ft

e Daily discharge less than 0.1 sec. -ft.
SAN GABRIEL RIVER BASIN 87

San Dimas Creek near San Dimas, Calif.

Location, Water-stage recorder and broad-crested weir, lat. 34°08 r 45", long. 117°46'35.", 

in SEfNEi sec. 25, T. 1 N., R. 9 W., at mouth of San Dimas Canyon, 0.7 mile downstream 

from San Dimas Dam and 3 miles northeast of San Dimas. Altitude of gage, about 1,245 

feet.

Drainage area. 18.3 square miles.

Records available. April to September 1916 (discharge measurements-only), December 1916 

to September 1950.

Average discharge. 33 years (1917-50), 4.72 second-feet.

Extremes.^-Maximum discharge during year, 7.1 second-feet May 17 (gage heigfct, 0.53 foot); 

maximum gage height, 0.62 foot 1 June 6; no flow during parts of October, November, 

December.

1916-50: Maximum discharge, 5,030 second-feet Mar. 2, 1938, from records of release 

at San Dimas Dam and computed inflow between dam and gaging station; no flow during 

parts of many years.

Remarks. Records; good. Flow regulated by San Dimas flood-control dam. San Dimas Water 

Co7"diverts water Just below this station for irrigation.

Cooperation. Forty-six discharge measurements furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer.

Revisions (water years). W 1061: 1938(M).

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1

.1 

o 

o 

o

0

o 

o 

o 

o

0

o 

o

0 

0

0 

0

o 

o 

o

0 

0

o 

o 

o

o

0 

0 

0

o 

o

Nov.

0 

0 

0 

0 

0

o 

o

0 

0 

.2

.1 

0 

0 

0

o

0 

0 

0 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

o 

o 

o 

o 

o

0 

0 

0 

0 

ao

ao 

ao 

ao 

aO 

ao

0 

.2 

a. 3 

.3 

.2

.2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Jan.

0.1

.1 

.1 

.1

.2

.3

.5 

1.2 

1.3 

1.4

2.0 

2.2 

2.0 

2.3 

2.5

2.8 

5.2 

3.1 

3.0 

2.8

2.7 

2.7 

2.8 

2.8 

2.7

2.4 

2.4 

2.4 

2.5 

2.4 

2.4

Feb.

2.4 

2.4 

2.3 

2.4 

2.4

2.8 

2.3 

2.3 

2.2 

2.3

2.2 

2.2 

2.2 

2.2!

2.0

1.9 

2.0 

2.0 

2.0 

2.0

2.2 

2.2 

2.5 

2.3 

2.0

2.0 

1.6 

.7

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

nber

lendar year 1949 

ary

ter year 1949-60 .......................

Mar.

0.6 

.6 

.5 

.4 

.3

.3 

.3 

.5 

.5 

.5

.3 

.3 

.3 

.3 

.3

.3 

.3 

.5 

.3 

.3

.5 

.2 

.1 

.2 

.4

.3 

.3 

.3 

.2 

.2 

.2

Apr.

0.2 

.2 

.3 

.2 

.2

.1 

.1 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.1

.1 

1.8 

3.6 

3.6 

3.7

3.8 

3.8 

3.7 

5.6 

5.7

Secondfoot -days

0.2 

.5 

2.2

584.87

59.4 

59.8 

9.6 

55.2 

175.5 

82.6 

4.0 

4,9 

4.5

438.2

May

3.7 

4.2. 

4.6 

4.6 

4.6

4.6 

4.8 

5.0 

5.4 

6.0

6-. 4 

6.7 

6.7 

6.8 

6.8

7.0 

7.0 

6.8 

6.5 

6.4

6.1 

5.B 

5.5 

5.5 

5.5

5.5 

5.S 

5.4 

5.4 

5.4 

5.3

Maximum

0.1 

.2 

.5

5.5

5.2 

2.8 

.6 

5.8 

7.0 

5.7 

.2 

.3 

. 3

7.0

June

5.3 

5.3 

5.3 

5.5 

5.5

5.? 

5.'4 

4.7 

4.5 

4.5

4.5 

4.5 

4.5 

4.5

4.3

4.2 

2.3 

.4 

.3 

.2

.3

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.1

July

0.1 

.1 

.1 . 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1

.1

.1 

.1 

.1 

.1 

.2 

.2

Minimum

O 

O 

O

0

.1 

.7 

.1 

.1 

3.7 

.1 

.1 

.1 

.1

0

Aug.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.1 

.1

.1 

.2 

.3 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.2 

.2

.2 

.2

.1 

.1 

.1 

.1

Mean

0.01 

.01 

.07,

1.05

1.92 

2.14 

.51 

1.17 

5.66 

2.75 

.15 

.16 

.15

1.20

Sept.

0.1 

.1 

.1

.1 

.1

.2 

.1 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2

.1 

.1

.2 

.2

.2 

.1 

.2

.2 

.2 

.1 

.2 

.5

Runoff in 

acre-feet

0.4 

' .6 

4.4

763

118 

119 

19 70 

548 

 164 

7.9 

9.7 

8.9

870

a No gage-height record; discharge computed on baals of field observations and weather records.
88 SAN GABRIEL RIVER BASIN

Dalton Creek near Qlendora, Calif.

Location. Water-stage recorder and broad-crested weir, lat. 34009'3011 , long. 11?°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 1950.

Average dis&harge. 30 years (1930-50), 1.15 second-f eet .

Extremes . Maximum discharge during year, 23 second-feet Jan. 23 (gage height, 1.12 feet); 

no now during several months.

1919-50: 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 fair. Flow regulated by Big Dalton flood-control dain. Glendora Irrigating Co. diverted no water during this year at diversion dam 1.5 miles above station.

Cooperation. '"hirty-'two discharge measurements furnished by Los Angeles County Flood 

control District, through H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1949 to September 19SO

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov.

0 

O 

0

0

o

a 

o

0

o

.5 

V e.06

0 

0 

0

0 

O 

0 

0 

0

o 

o

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

O 

O 

0 

0

0

o

0 

0

0

0

o 

o

0 

0

0 

0 

.7 

.8 

.3

.2 

 e.05

Jan.

eO.02

.2

.2 

.1

.2

.2 

.2

.2 

.1

.1

.1

> e.06

3.0 

7.7 

6.2 

1.4 

.8

.3 

a. 2 

a. 2 

a. 2

8.1 

8.1

Feb.

L eO.03

1.7 

.8 

.6 

.4 

.5

.4

.3 

.3 

.4

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.1 

.1

.1 

.1 

.1

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1949 

ary

ter year 1949-5O .......................

Mar.

0.1

.1 

.1

.1

.1

.1 

.1 

.1

e.o6 

e.04

i;

L e.07

Apr.

eO.05

.3 

.4

.2

.2

. e.07

L e.05

Secondfoot-days

0 

.62 

2.50

62.65

2'2.12

7.95 

2.81 

2.62

.78 

.02 

0 

0 

26.41

65.83

Hay

 eO.P4 

. e.02

Maxiaua

0 

.5 

.3

7.4

*~ 7.7 

1.7 

.4 

.4

0

0 

3.6

7.7

June

0 . 

o 

0

0 

0 

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0

0

0 

0

, 0 

0 

0

0 

0 

0 

0 

0

July

MlnlBua

P 

0 

0

0

o

0 

0 

0

0

Aug.

Man

0 

.021 

.081

.172

.714 

.284 

.091 

.087 

.025 

.001 

0 

0 

.880

.ISO

Sept.

O

o 

o

0

o

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

e.Ol 

1.3

r.s

1.9

Z.B 

2.7 

2.8

3.3 

3.6 

2.7 

.3 

.3

Runoff in 

acre-feet

0 

1.2

5.0

125

44

16 

5.6 

5.2 

1.5 

.04 

0 

0 

52

131

a No gage-height record; discharge Interpolated, 

e Dally discharge less than 0.1 sec. -ft.
SAN GABRIEL RIVER BASIN 89

Little Dalfon Creek near Glendora, Calif.

Location. Water-stage recorder, lat. 34°10'05", long 117°50'15", in SE^- sec. 17, T. J. N., 

K. 9 W., 0.8 mile upstream from mouth of canyon and 2.5 miles northeast of Glendora. 

Datum of gage is 1,334.38 feet above mean sea level (levels by Los Angeles County Flood 

Control District).

Drainage area.--2.7 square miles.

Records available.--December 1938 to September 1950. January 1929 to November 1938 at 

site O.B mile downstream (drainage area, 3.3 square miles).

Average discharge. 12 years (1938-50), 0.84 second-foot.

Extremes. Maximum discharge during year, 8.1 second-feet Dec. 18 (gage height, 0.69 foot); 

no now during most of year.

1929-50: Maximum discharge, 960 second-feet (estimated) Mar. 2, 1938; no flow for 

several periods in each year.

Remarks. Records fair. No regulation or diversion above station.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through H. E. 

Hedger, chief engineer.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

IZ

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

.1

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0 

0

Dec.

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

1.2 

2.8 

.7

.5 

.3 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Jan.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.3 

.4 

.3

.8

1.0 

.6 

.5 

.5

.4

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3

.3 

.3 

.3 

.4 

.2 

.1

Feb.

0.1 

.1 

.1 

.1 

.1

3.3

1.7 

1.2 

.7

1.4

1.2 

1.2 

1.4 

1.2 

1.0

.6 

.5 

»5 

.5 

.4

.4

.3 

.3 

.2 

.2

.2

.3 

.3

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Bar.

0.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

.7 

.9

.6 

.4 

.3 

.2

.1 

.1

Apr.

0.1 

.1

.1 

.1 

.1

.1 

.1 

.2 

.6 

.2

.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Secondfoot-days

0 

.1 

6.5

35.87

9.8 

19.5 

6.8 

4.2 

.8 

0 

0 

0 

0

47.7

May

0.1 

.1 

.1 

.1 

.1

.1 

.1 

0 

0

0

0 

0 

0

.1

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

.1 

2.8

2.8

1.0 

3.3 

.9 

.6 

.1 

0 

0 

0 

0

3.3

June July

Minimum

0 

0

0

0

.1 .1.1 .1

0 

0 

0

0 

0

0 .

Aug.

Mean

0 

.003 

.21

.098

.32

.70 

.22 

.14 

.03 

0 

0 

0 

0

.13

Sept.

Runoff in 

acre -feet

0

.2 

13

71

19 

39 

13 

8.3

1.6 

0 

0 

0 

0

94
90 SAN GABRIEL RIVER BASIN 

San Jose Creek near Whittier, Calif.

Location. Water-stage recorder, lat. 34°01 I 25", long. 118°02'05", in Paso de Bartolo Grant, 

 at Workman-Mill Road Bridge, 3 miles north of Whittier. Datum of gage is 214.85 feet 

above mean sea level (levels by Los Angeles County Flood Control District).

Drainage area. 85.2 square miles.

Records available.--January 1929 to September 1950.

Average discharge.--21 years, 8.73 second-feet.

Extremes.--Maximum discharge during year, 747 second-feet Feb. 6 (gage height, 3.39 feet); 

minimum daily, 0.2 second-foot on many days.

1929-50: Maximum discharge, 13,100 second-feet Jan. 1, 1934; no flow at times.

Remarks.--Flow partly regulated by Thompson Creek Pam. One small diversion above station 

i'or ground-water recharge.

Cooperation. Records furnished by Los Angeles County Flood Control District, through H. E. 

Meager, chief engineer.

Discharge, in second-feet, water year October 1949 to September 19J50

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.0 

.8

.6 

.6 

1.0

.6 

.4

2.4 

.8 

.2

.2 

.4 

.4 

.6 

1.0

1.4 

2.2 

1.4 

1.0 

.8

.8 

.8 

.8 

.8 

.8

.6 

.8 

1.4 

2.0 

1.4 

1.0

Nov.

O.S 

.8 

.8 

.8

.6

.6 

.6 

.4 

.4 

7.9

7.8 

4.2 

3.8 

3.3

1.8

1.0 

.4 

.4 

.4 

.4

.4

.8 

.6 

.6 

.6

.6 

.6 

.8 

.8

.6

Dec.

0.4 

.4 

.2 

.2 

.2

.2 

.2 

.2 

.6 

2.5

1.0 

.6 

.2 

.4 

.2

.2 

.2 

39 

147 

4.6

2.4 

1.0 

.8 

.6 

.4

.4 

.6 

.8 

1.0 

.8 

.8

Jan.

0.6 

.6 

.6 

.6 

.6

.4 

.4

39 

35 

5.5

60 

57 

6.5 

4.7 

4.O

3.1 

2.4

1.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

4.0 

1.2 

1.2

Feb.

1.0 

.8 

.8 

.8 

.8

180 

4.6 

3.3 

2.9 

' 3.1

3.1 

1.2 

1.0 

.6 

.6

.6 

1.2 

.8 

.6 

.6

.8 

.8 

.8 

1.0 

1.0

.6 

.6 

.6

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

ter year 1949-50 .......................

Mar.

0.8 

2.0 

2.4 

2.2 

2.0

1.8 

2.0 

2.0

1.8 

1.8

2.0 

2.0 

2.0 

2.2 

2.0

2.0 

2.7 

2.9 

2.9 

2.9

2.7 

2.4 

2.2 

2.4 

6.2

2.9 

1.8 

1.4 

1.4 

1.4 

1.4

Apr.

1.8 

1.6 

1.4 

1.4 

1.4

1.8 

2.0 

1.8 

2.8 

2.9

2.4 

2.2 

2.2 

2.0 

2.2

2.2 

2.4 

2.4 

2.4 

2.4

2.. 2 

2.2 

2.2 

2.7 

2.9

3.1 

3.1 

2.9 

2.9 

2,4

Seeondfoot-days

29.0 

43.6 

208.1

768.2

237.2 

214.6 

68.6 

68.3 

38.1 

14.8 

13.4 

13.2 

15.2

964.1

May

2.9 

2.7 

2.4 

2.0 

2.4

2.7 

2.0 

1.8 

2.0 

2.0

1.8 

1.4 

1.0 

.8 

.6

.4 

.4

.6 

.8 

.8

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6 

.6

Maximum

2.4 

7.9 

147

147

60 

180 

6.2 

3.1 

2.9 

.8 

.8 

.8 

1.0

180

June

0.6 

.6 

.8 

.8 

.8

.S 

.8 

.8 

.8 

.8

.8 

.6 

.6 

.4 

.4

.4

.4 

.6

'.2

.2 

.2 

.4

.2 

.2

.2 

.2 

.4

.2 

.2

July

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.4 

.6 

.6 

.6 

.8

.8 

.3 

.4 

.6 

.4

.4 

.4 

.4

.4 

.8

.8 

.6 

.4 

.4 

.4 

.4

Minimum

0.2 

.4 

.2

.2

.4 

.6 

.8 

1;4 

.4 

.2 

.2 

.2 

.2

.2

Aug.

0.4 

.4 

.4 

.4 

.4

.2 

.4 

.4 

.4

.4

.6 

.8 

.6 

.6 

.6

.4 

.2 

.2 

.2 

.4

.6 

.2 

.6 

.8 

.8

.6 

.4

.2 

.2 

.2 

.2

Mean

0.94 

1.45 

6.71

2.10

7.65 

7.66 

2.21 

2.28 

1.23 

.49 

.43 

.43 

.51

2.64

Sept.

0.4 

.8 

.8 

.8 

.4

.4

.2 

.4 

.2 

.4

.8 

.4 

.4 

.4

.2

.4

.6 

.6 

.6 

.6

.6 

.6 

.6 

.5 

.5

.4

.4 

.4 

.4 

1.0

Runoff in 

acre-feet

58 

86 

415

1,520

470 

426 

136 

135 

76 

29 

27 

26 

30

1,910
SAN GABRIEL RIVER BASIN 91

Coyote Creek near Artesia, Calif.

Location.--Water-stage recorder, lat. 35°50'45", long. 118°03'30", In Los Coyotes Grant, 

orTTJel Amo Street Bridge, 1.8 miles southeast of Artesia, Los Angeles County. Datum 

of gage is 28.38 feet above mean sea level (levels by Los Angeles County Flood Control District).

Drainage area. 110 square miles.

Records available. October 1939 to September 1950 in reports of Geological Survey; Decemoer isae to September 1939 (weekly discharge measurements only prior to January 

1930) in files of Los Angeles County Flood Control District.

Average discharge.--20 years (1930-50), 8.15 second-feet.

Extremes.--Maximum discharge during year, 240 second-feet Feb. 6 (gage height, 6.15 feet); 

no now for many days.

1930-50: Maximum discharge, 4,190 second-feet Feb. 6, 1937 (gage height, 10.1 

feet); no flow at times.

Remarks. Records fair. No regulation or diversion above station.

Cooperation. Records furnished by Los Angeles County Flood Control District, through 

H. E r Hedger, chief engineer.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

a

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

.2 

.3 

.3

0 

0 

0 

0 

.9

.4 

O 

0 

0 

0

0 

.3 

.4

.6 

1.1

1.1 

.8 

1.0 

1.8 

1.3

1.6 

2.0 

2.0 

2.0 

2.0

Dec.

1.9 

2.0 

2.0 

1.9 

1.7

1.8 

1.9 

2.0 

2.0 

1.9

2.1 

2.7 

2.8 

2.9 

2.8

2.9 

3.0 

3.2 

6.7 

6.1

3.2 

2.8 

2.7 

2.7 

2.8

2.8 

2.9 

3.0 

3.3 

2.9 

2.7

Jan.

2.5 

2.2 

1.9 

2.0 

1.6

1.7 

1.7 

1.8 

3.9 

2.4

2.8 

31 

13 

6.5 

5.9

5.5 

6.3 

6.3 

5.9 

6.3

6.3 

5.9 

5.5 

5.9 

6.3

6.3 

6.6 

6.8 

8.3 

7.0 

7.2

Feb.

7.2 

6.8 

9.3 

9.5 

9.5

89 

53 

12 

5.5 

6.6

14 

7.2

4.9 

5.1

5.5 

5.2 

4.9 

4.6 

4.6

4.7 

4.6 

4.3 

2.8 

2.1

2.1 

2.3 

2.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 1949 

ary

ter year 1949-SO .......................

Mar.

3.4 

3.3 

3.7 

3.7 

2.5

2.2 

2.2 

2.2 

2.1 

2.2

2.1 

2.0

1.8 

1.5

1.0 

1.1 

.9 

1.4 

1.1

1.0 

1.0 

.8 

.8 

1.5

5.1 

3.3 

2.7 

3.0 

2.5 

2.7

Apr.

1.6 

2.1 

1.8 

2.0 

2.0

1.4 

1.4 

1.4 

3.1 

6.1

3.1 

1.9

3.1 

3.1

3.1 

2.7 

1.8 

1.6 

2.1

3.1 

2.4 

1.1 

.9 

.8

1.7 

2.7 

1.5 

1.3 

.6

Secondfoot-days

0 

20.1 

86.1

466.9

18S.S 1 

295.2 

67.0 

63. 9 

14.7 

26.6 

39.9 

41.3 

68.6

906.7

Hay

0.6 

.6 

1.1 

.8 

.4

.2 

0 

0 

0 

.4

.4 

.5

.3 

0

0 

0 

.2 

1.0 

1.0

.9 

.2

0 

.8 

1.3

1.3 

.8 

.5 

.3 

.4 

.3

Maximum

0 

2.0 

6.7 ,

9.2

SI 

89 

S.I 

6.1 

1.3 

2.2 

4.4 

2.7 

S.6

89

June

0.4 

2.1 

2.2 

1.4 

.4

.6 

1.6 

1.0 

1.6 

1.6

.8 

.6

1.5 

1.2

.7 

.5 

.4 

.3 

.2

.5 

1.4 

.6 

.6 

.9

.5 

.4 

.4 

.5 

.6

July

4.4 

3.0 

1.2 

.7 

.6

.4 

.4 

1.5 

1.3 

.8

.6 

.4

3.2 

1.8

1.7 

1.1 

1.0 

1.5 

2.0

2.0 

1.9 

1.5 

.8 

.8

.8 

.9 

.6 

.5 

.5 

.6

Aug.

C 

2 

1

] 

] 

]

] 

]

]

]

3 

]

] 

I 

2: ]

]

: ]

:

2 

2

Minimum Mean

0 0 

0 .67 

1.7 2.78

0 1.28

1.6 5.91 

2.1 10.5 

.8 2.16 

.6 2.13 

0 .47 

.2 .89 

.4 1.29 

.4 1.33 

.8 2.29

0 2.48

.4

.0 

.1 

.9 

.8

.8 

.7 

.2 

.1 

.2

.3 

.8 

.9 

.0 

.8

.8 

.1 

.7 

.4 

.7

.4 

.4 

.1 

.4 

.1

.3 

.6 

.2 

.2 

.7 

.2

Sept.

1.8 

2.2 

3.2 

2.4 

1.5

, 1.0 

.8 

1.1 

2.0 

2.2

3.0 

3.0 

3.3 

3.4 

2.5

2. .4 

2.3 

1.9 

1.3 

2.4

3.0 

3.3

3.6 

3.5 

2.2

1.3 

" .8 

2.6 

2.9 

1.7

Runoff In 

acre-feet

0 

40 

171

926

364 

586 

133 

127 

29 

53 

79 

82 

136

1,800
92 SAN GABRIEL RIVER BASIN

Brea Creek below Brea Dam, near Pullerton, Calif.

Location. Water-stage recorder, lat. 33°53'15", long. 117°55'30", 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 1950.

Extremes. Maximum discharge during year, 83 second-feet Feb. 6 (gage height, 2.21 feet); 

no flow during most of year.

1942-50: Maximum discharge, 655 second-feet Feb. 29, 1944 (gage height, 5.10 feet); 

no flow during parts of most years. .

Remarks. Records good. Plow regulated by Brea Dam.

Cooperation.--Gage-height record and 4 discharge measurements furnished by Corps of 

Engineers.

Revisions (water years).--W 1041: 1944(M>.

Discharge, In Becond-feet, water year October 1949 to Septeaber 1950

Day

1 

2

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.2

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0

0 

0 

0

0 

0 

.3

0 

0

.5 

.3 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0

.1

0 o

Feb.

0 

0 

0 

0 

0

4.1 

.3 

0 

0 

2.3

.5 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Mare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ma

riser. ...........-----------

lendar year 194S

ttttbftX* * 

ter year 1949-50 .......................

War.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

.2 

0

0

0 

0 

0 

0 

0

Apr.

Secondfoot-daye

0 

0 

.2

T 10.23

1.2 

7.2 

.2 

0 

0 

 0 

0 

0 

0

8.6

Bay

Maxima

0 

0 

.2

 8

.5 

4.1 

.2 

0 

0 

0 

0 

0 

0

4.1

June July

MinlBum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.01

.028

.04 

.26 

.01 

0 

0 

0 

0 

0 

0

.02

Sept.

Runoff In 

acre-feet

0 

0 

.4

20

2.4 

14 

.4 

0 

0 

0 

0 

0 

0

17
SAN GABRIEL RIVER BASIN 93

Brea Creek at Fullerton, Calif.

Location. Water-stage recorder, lat. 33°52'25" ) long. 117°55'30", in San Juan Cajon de 

Santa Ana Grant, between Maiden Avenue and U. S. Highway 101 at Fullerton, Orange County. 

Altitude of gage, about 250 feet.

Drainage area.--26.2 square miles.

Records available.--October 1930 to September 1950.

Average discharge.--19 years (1930-38, 1939-50), 1.31 second-feet.

Extremes. Maximum discharge during year, 70 second-feet j?eb. 6 (gage height, 0.46 foot); 

no now during most of year.

Cooperation.--Records furnished by Orange County Flood Control District, through J. A. 

Bradley, flood-control engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

87 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

.1 

.4

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

Dec.

0 

0 0' 

0 

0

0 

0

.1 

0 

0

0 

0 

0 

0 

0

.1

0 

1.6 

.9 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

2.2 

.2

0

1.4 

.8

0

.1 

0

.2 

.2 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.1 

.2 

0 

0

Feb.

0 

0 

0 

0 

0

13 

.4 

0 

0 

.6

.3

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194£ 1

h. ......................................

ter year 1949-50 .......................

Mar.

 o

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.4

.1

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

.3

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

0 

.5 

2.7

11.5

5.4 n 

14.3 

.5 

.4 

.1 

0 

0 

0 

0

23.9

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

.4

1.6

3.0

2.2

13 

.4 

.3 

.1 

0 

0 

0 

0

13

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

o.

Aug.

Mean

0 

.02 

.09

.03

.17 

.51 

.02 

.01 

.003 

0 

0 

0 

0

.07

Sept.

Runoff In 

acre-feet

0 

1.0 

5.4

23

11 

28 

1.0 

.8 

.2 

0 

0 

0 

0

47
94 SAN GABRIEL RIVER BASIN

Fullerton Creek below Fullerton Dam, near Brea, Calif.

Location. Water-stage recorder, lat. 33°53'40", long. 117 0 53'05", on outlet channel of 

 FuTIe~rton 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 1950.

Extremes. Maximum discharge during year, 75 second-feet Feb. 8 (gage height, 3.22 feet); 

ho flow most of year.

1941-50: 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 record and one discharge measurement furnished by Corps of 

Engineers.

Discharge, In second-feet, Mater year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27

23 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0

.1

0 

0

.1

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

0

.1

.5

.2 

0

.2 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr!

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

ter year 1949-50 .......................

Mar. Apr.

Secondfoot-days

0 

0 

0

0

.2 

1.0 

0 

0 

0 

0 

0 

0 

0

1.2

Hay

Maximum

0 

0 

0

0

.1

.5 

0 

0 

0 

0 

0 

0 

0

.5

June July

Mlninun

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

-

Mean

0 

0 

0

0

.01 

.04 

0 

0 

0 

0 

0 

0 

0

.003

Sept.

Runoff in 

acre-feet

0 

0 

0

0

.4

2.0 

0 

0 

0 

0 

0 

0 

0

£.4
SAN GABRIEL RIVER BASIN 

Pullerton Creek at Fullerton, Calif.

95

Location.--Water-stage recorder, lat. 33°52'20", long. 117°54'20", in San Juan Cajon de 

santa Ana Grant, on Raymond Avenue Bridge, at Pullerton, Orange County. Altitude of 

gage, about 170 feet.

Drainage area.--6.2 aquare miles.

Records available.--October 1939 to September 1950 in reports of Geological Survey. Octooer i93l to September 1935 at aite at Cypress Avenue (drainage area, 4.3 square 

miles) and October 1935 to September 1939 in files of Orange County Flood Control 

District.

Average diacharge.--15 years (1935-50), 0.74 second-foot.

Extremes . Maximum discharge during year, 17 second-feet Sept. 7 (gage height, 0.53 foot); 

no now moat of year.

1935-50: Maximum discharge, 1,600 second-feet Mar. 14, 1941 (gage height, 10.05 

feet); no flow for several months each year.

Remarks.--Local irrigation company occasionally wastes water to creek during summer 

months.

Cooperation. Records furnished by Orange County Flood Control District, through J 

Bradley; flood-control engineer.

Discharge, In second-feet, water year October 1949 to September 1950

A,

Day

1 

2

3 

4 

-5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22

23 

24 

25

26 

27 

23 

29 

30 

31

Oct.

1.1 

1.2

.3 

.5 

.3

.4 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.2

.4 

0

0 

0 

0 

0 

.5

.4 

0 

.3 

1.2 

1.2 

0

Hov.

0 

0 

0 

.3 

.7

.5 

0 

.5 

.7 

.7

0 

0 

0 

.5 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.3

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

0 

.3 

0 

0

0 

.1 

.3 

.4 

.4

.1 

0 

2.8 

1.6 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

.1

0 

.6 

1.4 

.3 

0

1.5 

.9 

0 

.3 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.6 

.5 

.9 

0 

0

Feb.

0 

0 

0 

0 

0

3.3 

.3 

0 

0 

1.6

.5 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

MRV

June 

July 

Augu 

Sept

Wa

lender year 194S

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.8 

.3

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

.6 

.6 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot -days

S.5 

4.2 

6.0

47.4

7.1 

6.2 

1.1 

1.2 

3.0 

10.9 

10.1 

6.2 

25.9

90.4

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.1 .1

0 

0 

0

0 

.2 

.2 

.4 

.4

.4 

.2 

.2 

.1 

.1

.2 

.1 

0 

.1 

.1 

.1

Maximum

1.2 

.7 

2.8

2.8

1.5 

3.3 

.8 

.6 

.4 

.6 

1.0 

.3 

2.4

3.3

June

0.3

0 

.1 

.2

.5

.4 

.1 

.4 

.5 

.6

.6 

.6 

.4 

.4 

.6

.7 

.8 

.2 

.3 

.4

.4 

.4 

.4 

.2 

0

.1 

.4 

.5 

.2 

.2

July

0.2 

.3 

.4 

.2 

.2

.2 

.2 

.2 

.2 

0

.2 

.2 

.4

.3

.7

.1 

.6 

.1 

0 

0

.5 

. 1.0 

.6 

.9 

.6

.7 

.5 

.4 

.2 

0 

0

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

.2

0

Aug.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.1 

.4 

.4

.2 

.6 

.2 

.8 

.4

.3 

0 

.6 

.8 

.8 

.6

Mean

0.27 

.14 

.19

.13

.23 

.22 

.04 

.04 

.10 

.36 

.33 

.20 

.36

.25

Sept.

0,7 

.4 

.2 

.4 

.4

.9 

1.7 

1.7 

1.7 

1.2

1.8 

2.4 

.8 

.4 

.5

1.3 

.6 

.9 

1.2 

1.0

1.0 

1.0 

. .6 

.5 

.2

.3 

.8 

.5 

.2 

.4

Runoff In 

acre-feet

17 

8^3 

12

93

14 

12 

2.2 

2.4 

6.0 

22 

20 

12 

51

179

Carbon Creek near Yorba Linda, Calif.

Location . Water-stage recorder, lat. 33°53<20", long. 117°50'40", in San Juan Cajon De 

Santa Ana Grant, at bridge on Yorba Linda Boulevard, 1.8 miles west of Yorba Linda, 

Orange County. Datum of gage is 288.60 feet above mean sea level, unadjusted.

Drainage area. 20.4 square miles.

Kecoras available. October 1949 to September 1950.

Jsxtremes. Maximum discharge during year, 1.0 second-foot Feb. 6 (gage height, 2.78 feet); 

no now during most of year.

Remarks. Records fair. .The only flow during the 1950 water year occurred on Feb. 6. The 

mean discharge for that day is 0.2 second-foot. The mean discharge for the month of 

February is 0.01 second-foot and that for the water year is 0.001 second-foot. Runoff 

for the month of February and for the water year is 0.4 acre-foot. No known diversion 

or regulation abovs station.
96 LOS AHGELES RIVER BASIN

Los Angeles River at Sepulveda Dam, Calif.

Location. Water-stage recorder, lat. 340 09'50", long. 118°28 T 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. 2 miles southwest of Van Nuys, Los Angeles County. 

Altitude of gage, about 675 Test (from topographic map).

Drainage area. 155 square miles.

Records available. May 1943 to September 1950.

Extremes. Maximum discharge during year, about 400 second-feet Feb. 6; minimum-daily, 2.4 

second-feet Sept. 29, 30,

1943-50: Maximum discharge, 4,800 second-feet Feb. 22, 1944 (gage height, 7.90 

feet); minimum daily, that of Sept. 29, 30, 1950.

Remarks. Records good. Storage of imported water in San Fernando Reservoir, and divensTons above station. Flow regulated by Sepulveda flood-control dam.

Cooperation. Gage-height record and 11 discharge measurements furnished by Corps of 

Engineers.

Discharge, in second-feet, water year October 1949 to September 1950

Bay

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

ze

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.5 

3.5

3.8 

3.5 

3.8

3.8 

3.6 

3.1 

3.3 

3.3

3.2 

3.1 

3.2 

3.6 

4.1

3.9 

3.6 

3.5 

3.7 

3.3

3.3 

3.3 

3.2 

3.3 

3.3

3.4 

3.4 

3.3 

3.3

3.3 

3.3

Nov.

3.6 

3.4 

3.9 

3.5 

3.3

3.5 

3.3 

4.2 

4.0 

6.3

5.7 

3.7 

3.5 

3.5 

3.8

3.5 

3.4 

3.7 

3.5 

3.4

3.4 

3.4 

3.5 

3.6 

3.5

3.4 

3.4 

3.4 

3.4 

3.4

Dec.

4.1 

3.2 

3.4 

3.3 

3.4

3.6 

3.6 

21 

13 

4.4

3.5 

3.4 

4.0 

3.5 

3.7

3.8 

45 

92 

63 

54

55

57 

57 

57 

57

57 

57 

56 

46 

14 

9.8

Jan.

5.2 

4.8 

4.4 

4.3 

4.4

4.4 

4.9

53 

36 

5.9

30 

32 

13 

7.0 

8.2

5.5 

5.4 

5'. 2 

5.0 

4.9

4.8 

4.5

4.3 

4.2 

4.5

4.2

4.0 

5.5 

10 

5.7 

4.9

Feb.

4.8 

4.8 

4.7 

4.7 

5.2

a!25 

all 

5.7 

5.1

13

12 

4.8 

4.3 

4.3 

4.4

4.5

4.5

4.4 

4.4 

4.4

4.5 

4.4 

4.4 

4.4 

4.4

4.5 

4.5 

5.4

Month

Goto 

Wove: 

Deew

Ca.

Jami 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

ber

 ber. ...........--------- - - ----- - -

lendar year 194S 

Etry

ter year 1949-50 .......................

Mar.

4.7 

4.8 

4.9 

4.8 

4.9

4.9 

4.S 

4.8 

4.8 

4.7

4.5 

4.4 

4.2 

4.1 

4.2

.2 

.4 

.5

.7 

.8

.7 

.4 

.5 

5.1 

9.3

6.2 

5.1 

5.1 

5.1 

4.9 

5.1

Apr.

5.2 

4.7 

3.S 

4.0 

4.2

4.4

4.3 

8.8 

12 

8.2

5.1 

4.7 

4.2 

3.6 

3.6

3.5 

3.7 

3.8 

3.9 

3.9

4.0 

3.9 

3.9 

3.8

3.8

3.9 

4.1 

4.2 

4.1 

4.0

Secondfoot-daya

106.8 

111.1 

863.7

2,606.5

300.1 

272.5 

151.6 

139.3 

126.8 

107.1 

109.5 

165.2 

133.0

2,588.7

Hay

4.0 

4.1 

3.9 

3.8 

4.3

4.5 

4.8 

4.2 

4.3 

4.3

4.1 

4.2

4.0 

3.7 

3.7

4.1 

4.5 

5.0 

4.9 

4.3

4.2 

4.3 

'4,0 

4.2

4.3

4.2 

3.9 

4.1 

3.7 

3.8 

3.4

Maximum

4.1 

6.3

92

92

53

125 

9.3 

12 

5.0 

4.4 

4.3 

8.1 

7.7

125

June

3.5 

4.4 

3.9 

3.5

3.3

3.7 

3.5 

3.6 

3.6 

3.2

3.3 

3.2 

3.5 

3.7 

4.0

4.1 

4.1

3.5 

3.3 

3.2

3.1 

3.1 

3.2 

3.5 

3.3

3.3 

3.4 

4.0 

3.9 

4.2

July

3.8 

3.6 

3.3 

3.8 

4.0

3.7 

4.0 

4.2 

4.3 

4.3

3.8 

3.3 

3.3 

3.9 

3.7

3.2

3.2 

3.3 

3.7 

3.3

3.3

3.2 

3.2

2.8 

2.7

4.0 

3.9 

3.0 

3.0 

3.3 

3.4

mnimun

3.1 

3.3 

3.2

3.0

4.0 

4.3 

4.1 

3.5 

3.4 

3.1 

2.7 

3.1 

2.4

2.4

Aug.

3.4

3.3 

3.5 

3.5 

6.1

8.1 

6.8 

3.2 

3.5 

6.4

6.7 

7.2 

6.8 

7.2 

7.5

3.6 

3.5 

4.4 

3.S 

3.2

3.1 

3.9

6.6 

6.8 

7.3

7.5 

7.5 

7.3 

8.7 

3.5 

3.1

Mean

3.45 

3.70 

27,9

7.15

9.68 

9.73 

4.89 

4.64 

4.15 

3.57 

3.53 

5.33 

4.43

7.09

Sept.

3.3 

3.7 

3.4 

3.0 

3.0

3.2 

3.6 

5.4 

5.6 

5.9

6.0 

6.0 

6.4 

6.4 

6.8

6.5 

7.7 

4.8

7.2 

6.4

3.2 

3.1

3.1 

3.3 

2.9

3.0 

2.8 

8.5 

2.4

2.4

Runoff in 

acre -feet

212 

220 

1,710

5,170

59S 

540 

301 

276 

Z55 

212 

217 

328 

264

5,130

a Ko gage-height record; discharge co^wted on basis of records for Los Angeles County Ktood Control District station ebout 0.4 mile downstream.
LOS ANGELES RIVER BASIS 97

Los Angeles River at Los Angeles, Calif.

Location. Water-stage recorder, lat. 34°04 1 50", long. 118°13'35H , near "Figueroa Street, 

iiOS Angeles, 0.1 mile upstream from Arroyo Seco. Datum of gage Is 298.58 feet above 

mean sea level (levels by Los Angeles County Flood Control District).

Drainage area. 510 square miles.

Records available. October 1929 to September 1950.

Average discharge. 81 years, 60.5 second-feet.

Extremes. Maximum discharge during year, 2,840 aecond-feet Feb. 6 (gage height, 2.33 

TeeTT; minimum daily, 0.3 second-foot Aug. 24, Sept. 21, 22.

1929-50: Maximum discharge, 67,000 second-feet Mar. 2, 1938; no flow for several 

periods in earlier years.

Remarks. Records fair. Plow regulated by several flood-control reservoirs above station. 

Many diversions above station for domestic use and irrigation.

Cooperation. Records furnished by Los Angeles County Flood Control District, through 

n. E. nedger, chief engineer.

Discharge, In second-feet, water year October 1949 to Septenber 1950

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

28 

27

28 

29 

30 

31

Oct.

5.9 

9.0 

11 

6.3 

6.3

5.9 

5.9 

5.5 

4.7 

4.3

5.1 

5.1 

5.1 

5.1 

5.1

3.9 

4.3 

4.7 

4.3

4.3

4.3 

4.3 

3.5 

4.3 

5.1

4.7 

4.7 

5.1 

5.1 

4.3 

4.3

Nov.

4.7 

5.1 

5.1 

5.1 

5.1

4.3

4.3 

4.7 

30 

236

17 

6.7 

3.5 

3.9 

5.1

5.9 

5.9 

3.9 

2.5 

2.5

1.9 

1.7 

1.7 

1.7 

1.7

1.7 

1.7 

1.9 

2.1 

1.9

Dec.

2.1 

2-3

2.5 

2.5 

2.7

2.7

4.8 

126 

22 

11

2.9 

£.5 

2.5 

2.7 

3.1

4.7 

12 

724 

147 

63

41 

52 

54 

54 

54

54

56 

56 

20 

7.5 

5.1

Jan.

3.9 

3.9 

3.9 

3.9 

3.9

6.8 

9.8 

339

141 

18

213

149 

38 

21 

17

12 

5.9 

3.9 

3.1

3.3

3.3 

3.3

3.5 

4.3 

4.7

4.3 

3.9 

25 

56 

14 

5.5

Feb.

4.7 

4.3 

4.3 

4.3 

4.7

804 

34 

11 

3.9 

107

34 

11 

3.9 

3.9 

3.9

3.9 

3.5 

3.5 

3.3 

3.1

3.1 

3.3 

3.5 

3.1 

2.7

2.7 

2.9 

£.7

Month

Oeto 

Rove

Dece

Ca

Janu 

Fefcr 

Bare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wet

nber. ...........--.......-.-.--. .......

lenetar year 1949 

ftx*y

ter year 1949-5O .......................

Mar.

2.5 

2.5 

2.6 

2.7 

2.8

2.8 

2.9 

3.0 

3.1 

3.1

3.1

3.1 

3.1 

3.1 

3.1

3.1 

3.1 

3.1 

3.2

3.2

3.3 

3.3 

3.4 

212 

129

13 

3.5 

3.5 

3.5

3.5 

3.5

Apr.

3.3 

3.3 

3.1 

3.1 

3.1

3.1 

3.9 

99 

70 

9.0

3.3 

3.5 

3.9 

3.3 

3.3

3.3 

3.3 

3.3 

3.3 

3.1

2.9 

3.3 

3.5 

3.3

3.3

3.1

2.9 

2.9 

2.9 

3.0

Secondfoot -daja

161.5 

379.3 

1,596.6

9,256.9

1.128.-1 

1,080.2 

445.7 

265.6 

114.4 

100.0 

62.7 

32.2 

59.2

5,425. 5

Hay

3.1 

3.2 

3.3 

3.3

3.3

3.9 

3.S 

3.5 

3.5

3.5

3.5 

3.5 

3.5 

3.5

3.5

3.5 

3.5

3.9 

3,9 

3.5

3.5

3.5 

3.9 

3.9

3.9

3.9 

4.3 

4.3 

4.3 

4.3 

4.3

Maxima

11 

£36 

724

724

339 

804 

212 

93 

4.3 

4.7 

3.1 

1.4 

34

804

June

4.3 

4.3

3.9 

3.9

3.9

4.3 

4.3

4.7 

4.7 

3.9

3.5 

3.3 

£.9 

2.7 

2.7

2.7 

2.7 

2.9 

2.9 

3.1

2.9 

2.7 

2.5 

2.7

2.9

2.9 

2.9 

2.9 

2.9 

3.1

Minima

July

3.1 

3.1 

2.9 

2.7 

2.7

2.7 

2.7 

2.5 

2.5 

2.3

2.1 

t.9 

1.7 

1*7 

1.7

1.7 

1.9 

1.9 

1.9 

1.9

1.9 

1..7 

1.7 

1.5

1.5

1.5 

1.5 

1.5 

1.5 

1.4 

1.4

3.5 

1.7 

2.1

1.7

3.1 

2.7 

2.5 

2.9 

3.1 

2.5 

1.4 

.3 

.2

.3

Aug.

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.4 

1.4 

1.4 

1.4

1.2

1.2 

1.2 

1.0 

1-0

1.0 

1.0 

.5 

.3 

.5

.7 

.8 

.7 

.7

.e

.8

Mean

5.21 

12.6 

51.5

25.4

36.4 

38.6 

14.4 

8.85 

3.69 

3.33 

2.02 

1.04 

1.97

14.9

Sept.

0.8 

.8 

.8 

1.0 

1.0

1.0 

1.0 

1.0 

1.2 

1.4

1.2 

1.2 

.8 

.8 

.8

.8 

34 

1.0 

>5 

.4

.3 

.3 

.5 

.8 

.8

1.0 

1.0 

1.0 

1.0 

1.0

Runoff In

acre -feet

380 

752 

3,170

18,380

2,240 

2,140 

864 

527 

227 198' 

124 

64 

117

10,760
98 LOS ANGELES RIVER BASIN

Los Angeles River near Dovmey, Calif.

Location. Water-stage recorder, lat. 33°57'05", long. 118°10'25", in San Antonio Grant, 

at'Kl'restone Boulevard Bridge, 1 mile upstream from Rio Hondo and 2.5 miles west of 

Dovmey, Los Angeles County. Datum of gage is 95.16 feet above mean sea level (levels' 

by Los Angeles County Flood Control District).

Drainage area. 614 square miles.

Records available.--March 1928 to September 1950.

Average discharge.--22 years, 97.4 second-feet.

Extremes. Maximum discharge during year, 8,480 second-feet Feb. 6 (gage height, 2.67 

feet); minimum daily, 8.5 second-feet Oct. 9.

1928-50: Maximum discharge, 79,700 second-feet Mar. 2, 1938; no flow during parts 

of some years.

Remarks.--Records fair. Flow regulated above station by many dams. Many diversions above 

station for domestic use and irrigation.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H7~ET~He~dger, chief engineer.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

88 

29 

30 

31

Oct.

17 

16 

20 

20 

20

20 

16 

11 

8.5 

11

19 

21 

22 

21 

17

14 

19 

23 

21 

19

18 

17 

14 

16 

20

21 

19 

2O 

19 

13 

14

Nov.

19 

21 

19 

19 

19

19 

19 

19 

165 

1,770

58 

22 

22 

21 

21

21 

21 

20 

19 

17

16 

15 

14 

14 

14

14

14 

15 

15 

15

Dec.

15 

15 

IS 

15 

15

15 

15 

230 

190 

13

13 

13 

13 

13 

13

13 

13 

1,730 

458 

146

64 

60 

56 

52 

48

44 

40 

36 

32 

30 

28

Jan.

26 

24 

22 

20 

18

25 

30 

689 

280 

112

510 

304 

62 

20

14

17 

15 

14 

13 

18

17 

14 

14

19 

17

18 

19 

37 

101 

32 

20

Feb.

19 

17 

18 

16

14

1,430 

101 

43 

23 

232

112 

54 

34 

29 

22

18 

19 

17 

13

14

18 

16 

15 

16 

14

13 

14 

16

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194S 

ary

h. ......................................

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

ter year 1949-50 .......................

Mar.

17 16' 

15 

14 

12

14 

17 

16 

19 

17

15 

13 

15 

17 

18

16 

18 

15 

14 

18

19 

20 

18 

347 

273

58 

23 

19 

19 

18 

18

Apr.

15 

14 

15 

19 

IS

17 

17 

198 

214 

29

20 

19 

17 

18

14

12 

14 

17

18 

19

16 

14 

12 

14 

17

16 

15 

18 

17 

17

Secondfoot-days

546.5 

2,477 

3,453

19,764.5

2,741 

2,367 

1,148 

880 

506.5 

480 

463 

411.0 

538.0

16,011.0

May

14 

14 

14 

14 

16

17 

15 

17 

19 20-

17 

14 

14 

10 

14

17 

18 

22 

17 

13

9.5 

23 

25 

22 

18

18 

17 

14 

15 

14 

15

Maximum

23 

1,770 

1,730

1,770

889 

1,430 

347 

214 

25 

19 

19 

18 

108

1,770

June

15 

15 

14 

12 

14

16 

16 

17 

16 

16

14 

14 

18 

17 

18

19 

17 

12 

14 

18

18 

16 

18 

18 

14

15 

19 

17 

16 

17

July

14 

12 

12 

10 

14

16 

17 

14 

13 

13

14 

14 

14 

16 

14

12 

14 

18 

17 

18

19 

17 

14 

15 

18

17 

17 

17 

15 

14 

14

Minimum

8.5 

14 

13

8.5

13 

13 

12 

12 

9.5 

12 

10 

9.0 

9.0

8.5

Aug.

15 

15 

18 

17 

14

11 

12 

13 

13 

12

12 

13 

9.0 

12 

13

14 

13 

14 

14 

12

12 

14 

12 

12 

14

13 

12 

14 

14 

14 

14

Mean

17.6 

82.6 

111

54.1

88.4 

84.5 

37.0 

29.3 

16.3 

16.0 

14.9 

13.3 

17.9

43.9

Sept.

14 

14 

10 

9.0 

11

13 

14 

14 

13 

11

14 

14 

14 

14 

14

14 

108 

26 

22 

17

18 

18 

16 

14 

15

16 

17 

15 

15 

14

Runoff in 

acre-feet

1,080 

4,910 

6,850

39,190

5,440 

4,690 

2,280 

1,750 

1,000 

952 

918 

815 

1,070

31,760
LOS ANGELES RIVER BASIN 99

Los Angeles River at Long Beach, Calif.

Location.--Water-stage recorder, lat. 33°47'25", long. 118°12'20", at State Street Bridge 

a/6 Long Beach 1.8 miles upstream from Pacific Ocean, Los Angeles County. Datum of 

gage is 0.90 foot above mean sea level (levels by Los Angeles Flood Control District).

Records available.--December 1928 to September 1950. 

Average discharge.--21 years (1929-50), 149 second-feet.

Extremes. Maximum discharge during year, 9,090 second-feet Feb. 6 (gage height, 6.80 

reet); minimum discharge, 3.8 second-feet Sept. 5.

1928-50: Maximum discharge, 99,000 second-feet Mar. 2, 1938; no flow at times in 

1929, 1930, 1934.

Remarks.--Records fair. Flow regulated by many reservoirs in Los Angeles River Basin and 

in Ban Gabriel River Basin above Santa Fe Dam. Many diversions above station for 

domestic use and irrigation.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

17 

16 

15 

15

15 

15 

16 

16 

16

16 

16 

16 

16 

15

15 

14 

13 

12 

J3

14 

14 

15 

16 

17

17 

17 

17 

18 

19 

20

Nov.

21 

22 

22 

22 

22

22 

22 

22 

22 

1,370

329 

48 

32 

24 

18

14 

15 

13 

14 

13

13 

11 

10 

11 

11

10 

8.8 

6.3 

6.3 

7.5

Dec.

9.4 

9.4 

9.4 

16 

14

9.4 

11 

293 

249 

66

42 

27 

17 

11 

8.2

18 

20 

2,060 

880 

132

55 

53 

60 

62 

60

55 

53 

58 

55 

46 

37

Jan.

35 

19 

17 

26 

24

16 

20 

937 

892 

183

694 

755 

291 

73 

73

51 

34 

22 

15 

15

16 

16 

15 

15 

15

15 

17 

20 

263 

76 

49

Feb.

35 

27 

24 

26 

24

2,360 

247 

64 

27 

296

288 

104 

55 

32 

23

17 

17 

18 

18 

14

18 

20 

12 

19 

IB

15 

13 

18

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MA v

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

17 

17 

20 

16 

15

15 

18 

19 

19 

24

27 

20 

16 

17 

17

18 

20 

19 

17 

17

19 

14 

19 

63 

777

171 

84 

51 

34 

28 

30

Apr.

28 

26 

23 

27 

30

31 

30 

150 

620 

166

46 

20 

19 

19 

19

16 

14 

15 

16 

16

18 

20 

18 

13 

17

18 

19 

18 

18 

18

Secondfoot-days

489 

2,181.9 

4,495.8

23,511.7

4,709 

3,849 - 

1,658 

1,508 

485.6 

439 

467 

433.6 

551.6

21,267.5

May

18 

20 

24 

20 

15

15 

18 

16 

17 

18

20 

12 

20 

15 

17

19 

17 

22 

19 

19

12 

8.2 '12 

11 

14

15 

14 

12 

8.2 

9.4 

8.8

Maximum

20 

1,370 

2,060

2,060

937 

2,360 

777 

620 

24 

20 

19 

19 

100

2,360

June

11 

10 

12 

11 

10

15 

16 

16 

11 

14

12 

13 

16 

13 

18

17 

19 

13 

12 

13

17 

17 

17 

20 

17

13 

17 

17 

16 

16

July

18 

16 

12 

13 

12

16 

17 

18 

15 

11

10 

12 

11 

15 

15

11 

11 

14 

16 

17

16 

19 

19 

15 

17

17 

17 

17 

18 

17 

15

Minimum

12 

6.3 

8.2

6.3

15 

12 

14 

13 

8.2 

10 

10 

8.2 

9.4

6.3

Aug.

19 

18 

19 

18 

17

16 

15 

13 

16 

17

19 

18 

15 

12 

13

12 

15 

15 

14 

13

10 

12 

12 

13 

11

13 

10 

9.4 

8.2 

11 

10

Mean

15.8 

72.7 

145

64.4

152 

137 

53.5 

50.3 

15.7 

14.6 

15.1 

14.0 

18.4

58.3

Sept.

9.4 

13 

9.4 

10 

9.4

11 

15 

18 

18 

13

9.4 

17 

16 

13 

16

15 

15 

100 

27 

20

17 

18 

19 

18 

15

18 

22 

15 

19 

16

Runoff In 

acre -feet

970 

4,330 

8,920

46,640

9,340 

-7,630 

3,290 

2,990 

963 

871 

926 

860 

1,090

42,180
100 LOS ANGELES RIVER BASIN

Pacoima Creek near San Fernando, Calif.

Location.--Water-stage recorder and broad-crested weir, lat. 34°20'02", long. 118°23'55", 

IrTSE^NEi sec. 24, T. 3 N., R. 15 W., 500 feet downstream from Pacoima Dam, 600 feet 

upstream from mouth of canyon, and 4 miles northeast of San Fernando. Altitude of 

gage, about 1,650 feet.

Drainage area. 28.2 square miles.

Records available. March 1916 to September 1950.

Average discharge.--33 years (1917-50), 8.43 second-feet.

Extremes. Maximum discharge during year, 314 second-feet Apr. 4 (gage height, 2.87 feet); 

no now for several months.

1916-50: Maximum discharge, 2,440 second-feet Mar. 3, 1938; no flow for several 

months in most years.

Remarks. Records good. Flow regulated by Pacoima flood-control dam.

Cooperation. Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Revisions (water years).--W 881: 1938(M). W 1041: 1944(M).

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

Z

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.4 

0 

.5 

0

.4 

0 

.4 

0 

0

.5 

.4 

.3 

0 

.4

0 

.5 

.3 

0 

.4

.2 

.2 

0 

.3 

.1

.3 

0 

.4 

.4 

0 

.4

Nov.

0.4 

0 

.4 

0

.5

O 

.4

0 

0 

.1

.5 

0 

.4 

0 

O

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0

Dec. Jan. Feb.

Month

Octo 

Hove 

Decs

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

ter year 1949-50 .......................

Mar. - Apr.

0 

O 

0 

0 

0

O 

0 

0 

O 

0

65 

98 

29 

.1 

.1

.1 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

7.2 

2.7 

0

3.71 . 9

0 

0 

0 

192.3 

1.5 

150.1 

156.9 

3.9 

0

514.6

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

1.5

Maximum

0.5 

.5 

0

7.9

0 

0 

0 

98 

1.5 

5.5 

5.5 

3.5 

0

98

June

4.7 

4.4 

4.7 

4.6 

4.5

4.6 

4.8 

5.0 

5.0 

5.0

5.0 

5.1 

5.0 

5.0 

5.0

4.9 

4.9 

4.9 

4.9

4.8

4.8 

5.2 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5.4 

5.5

July

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.0 

5.0 

5.0

5.0 

5.0 

4.9 

4.9 

4.9

4.9 

4.9 

4.3 

5.0 

5.1

5.1 

5.1 

5.1 

5.0 

5.0

4.9 

4.9 

4.8 

4.8 

4.7 

4.6

Minimum

0 

O

a

0

o

0 

0 

0 

0 

4.4 

4.6 

O 

0

0

Aug.

3.5 

.3 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0.23 

.09 

0

1.02

0 

0 

0 

6.41 

.05 

5.00 

5.06 

.13 

0

1.41

Sept.

Runoff in 

acre-feet

14 

5.4 

0

737

0 

0 

0 

381 

3.0 

298 

311 

7.7 

0

1,020
LOS ANGELES RIVER BASIN 101

Tujunga Creek near Colby Ranch, Calif

Location.--Water-stage recorder, lat. 34°18'10", long. 118°09'35", just downstream from 

 Lucas Creek, 4dO feet upstream from crossing of.Edison Road, 3.5 miles west of Colby

Ranch, Los Angeles County, and 4 miles upstream from Big Tujunga Dam. Altitude of gage,

about 2,410 feet.

Drainage area.--66.9 square miles.

Records available. October 1930 to May 1950 (discontinued).

Average discharge. 19 years (1930-49), 20.3 second-feet.

Extremes. Maximum discharge during period October 1949 to May 1950, 40 second-feet Feb. 6 

(gage height, 6.82 feet); minimum daily, 0.1 second-foot Oct. 1-5.

1930-50: Maximum discharge not determined, probably occurred Mar. 2, 1938/ A discharge of 14,800 second-feet occurred Jan. 23, 1943 (gage height, 15.40 feet); no flow 

parts of some years.

Remarks. No diversion or regulation above station.

Coot sration. Records furnished by Los Angeles County Flood Control District, through 

. K. Hedger, chief engineer.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.4

.5 

.6

.6 

.5 

.5 

.4 

.5

.5 

.5 

.5 

.6 

.5 

.5

Nov.

0.5 

.5 

.5 

.5 

.5

.5 

.6 

.6 

.9 

10

2.7 

1.9 

1.6 

1.4 

1.2

1.1 

1.1 

1.2 

1.2 

1.2

1.4 

1.5 

1.5 

1.5 

1.5

1.5 

1.5 

1.6 

1.6 

1.8

Dec.

1.8 

1.8 

1.8 

l.S 

1.9

1.9 

2.1

2.4 

2.0

2.0 

2.0 

2.0 

2.0 

2.0

2.1 

2.1 

11 

12 

5.1

3.6 

2.9 

2.7 

2.4 

2.3

2.1 

2.1 

2.1 

2.1 

2.1 

2.1

Jan.

2.1 

2.1 

2.0 

2.0 

2.0

2.0 

2.0

11 

5.1

7.2 

7.0

4.8 

4.6

4.4

4.1 

4.4 

4.6 

4.4

4.4 

4.4 

4.4

4.1 

3.9

3.8 

3.6 

4.4 

5.6 

4.6 

3.9

Feb.

3.8 

3.8 

3.6 

3.6 

3.8

23 

14

5.6 

5.8

6.1 

5.1

4.1 

3.9

3.9 

3.8 

3.7 

3.4 

3.4

3.4 

3.4 

3.2 

3.2 

3.2

3.2 

3.2 

3.2

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hayl 

June 

July 

Augu 

Sept

Th

lendar year 1949 

ary

h. ......................................

-17........ ............................

e period. ..............................

Mar.

3.2 

3.2 

3.2 

3.2 

3.2

3.2 

3.2

3.1 

3.1

3.1 

2.9

2.7 

2.7

2.7 

2.7 

2.7 

2.S 

2.6

2.6 

2.6 

2.6 

5.2 

8.0

4.1 

3.6 

3.2 

3.1 

2.9 

2.9

Apr.

2.7 

2.6 

2.6 

2.4 

2.4

2.4 

2.6 

11 

14 

6.4

5.4 

4.6

3.9 

3.6

3-2 

3.2 

3.1 

2.9 

2.7

2.7 

2.7 

2.9 

2.9 

2.7

2.7 

2.9 

2.9 

2.7 

2.7

Secondfoot-days

10.0 

45.2 

89.4

799.2

134.1 

142.1 

99.9 

113.6 

36.7

-

Hay

2.7 

2.7 

2.7 

2.7 

2.4

2.3 

2.3 

2.1 

2.1 

2.0

1.9 

1.8

1-.8 

1.8

l.S 

1.8

Maximum

0.6 

10 

12

12

11 

23 

8.0 

14 

2.7

-

June July

Minimum

0.1 

.5 

1.8

0

2.0 

3.2 

2.6 

2.4 

1.8

-

Aug.

Mean

0.33 

1.51 

2.8S

2.19

4.33 

5.08 

3.22 

3.79 

2.16

-

Sept.

Runoff In 

acre-feet

20 

90 

177

1,580

266 

282 

198 

225 

73

1,330

207481 O - 52 - 8
102 LOS ANGELES RIVER BASIN

Tujunga Creek near Sunland, Calif.

Location.--Water-stage recorder, lat. 34°17'55", long. 118°16i10", 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. 

Datum of gage is 1,571.80 feet above mean sea level (levels by Los Angeles County Flood 

Control District).

Drainage area.--106 square miles.

Records available.--October 1916 to September 1950.

Average discharge.--33 years (1917-50), 30.4 second-feet.

Extremes.--Maximum discharge during year, 73 second-feet Nov. 10 (gage height, 6.83 feet); 

minimum dally, 1.7 second-feet May 11-16.

1916-50: Maximum discharge, 50,000 second-feet Mar. 2, 1938; minimum, 0.1 secondfoot at times during summers of 1919, 1924, 1928-31.

Remarks.--Records good. Flow regulated by Big Tujunga flood-control dam, 7 miles above 

station. Two or three small diversions above station for irrigation.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. £. Hedger, chief engineer.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

eo

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.5 

3.5 

3.5 

3.5 

3.5

3.7 

3.7 

3.7 

3.7 

3.5

3.5 

3.2 

3.3 

3.2 

3.0

2.8 

3.6 

3.0 

3.3 

3.3

3.2 

3.0 

3.0 

3.2 

3.0

2.8 

2.8 

2.8 

2.8 

2.8 

2.8

Nov.

2.8 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.6 

30

9.2 

6.1 

5.0 

4.5 

4.5

4.2 

4.2 

4.2 

4.8 

4.8

4.5 

4.0 

3.5 

3.5 

3.2

3.2 

3.2 

3.0 

3.0 

2.8

Dec.

2.6 

3.6 

3.6 

2.6 

2.6

2.6 

3.0 

5.0 

.2 

.0

.0 

.0 

.0 

.0

.0

3.7 

3.7 

19 

20 

10

6.8 

6.8 

5.5 

4.5 

4.0

3.5 

3.2 

3.0 

2.8 

2.6 

2.4

Jan.

2.2 

2.2 

2.1 

1.9 

1.9

1.9 

1.9 

5.0 

9.4 

4.8

8.0 

12 

7.8 

6.5 

6.1

5.5 

4.8 

4.5 

4.5 

4.3

4.0 

3.7 

3.7 

3.5 

3.3

3.2 

3.3 

3.5 

4.3 

3.7 

3.5

Feb.

3.0 

3.0 

3.0 

3.0 

3.3

20 

12 

7.8 

7.2 

7.2

6.8 

6.5 

6.1 

5.8 

7.5

8.2 

7.8 

8.2 

8.2 

7.8

7.8 

7.8 

7.5 

7.5 

7.5

7.8 

7.8 

7.8

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949 

ary

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

ter year 1949-50 .......................

Mar.

7.8 

7.5 

7.5 

7.2 

5.5

4.3 

4.0 

3.5 

3.2 

3.0

3.0 

3.2 

3.0 

2.8 

2.8

2.8 

2.8 

2.6 

2.6 

2.4

2.4 

2.4 

2.2 

4.6 

13

6.5 

5.0 

4.2 

3.7 

3.2 

3.0

Apr.

2.8 

2.6 

2.4 

2.4 

2.2

2.2 

3.2 

6.9 

12 

7.5

5.5 

4.8 

4.2 

4.0 

3.5

3.2 

3.8 

3.8 

3.4 

2.2

2.4 

2.6 

2.8 

3.6 

3.6

2.6 

2.6 

3.6 

2.4 

2.2

Secondfoot-days

98.9 

142.8 

153.3

1,521.9

136.6 

203.8 

131.6 

104.0 

76.6 

93.4 

135.6 

106.0 

118.2

1,490.8

May

2.3 

2.4 

3.4 

2.3 

2.1

2.1 

3.2 

3.2 

3.1 

1.9

1.7 

1.7 

1.7 

1.7 

1.7

1.7 

2.3 

2.8 

3.0 

3.0

3.0 

3.0 

3.5 

3.5 

3.5

3.2 

3.8 

2.4 

2.2 

2.2 

4.3

Maximum

3.7 

30 

20

30

13 

30 

13 

12 

4.3 

4.0 

5.0 

4.3 

4.8

30

June

2.6 

2.4 

2.3 

2.1 

3.3

2.2 

2.4 

2.4 

2.2 

3.3

3.4 

3.2 

3.5 

3.7 

3.5

3.7 

4.0 

3.7 

3.7 

Z.I

3.7 

3.7 

3.7 

4.0 

3.7

3.7 

3.5 

3.2 

3.2 

3.0

July

3.0 

3.2 

4.0 

3.7 

3.7

3.7 

4.2 

4.5 

5.0 

4.8

4.5 

4.3 

4.2 

4.2 

4.0

4.0 

4.3 

4.2 

4.2 

4.3

4.0 

4.0 

3.7 

4.0 

4.0

4.0 

4.0 

4.0 

4.0 

4.0 

4.3

Minimum

2.6 

2.8 

3.4

2.0

1.9 

3.0 

3.3 

2.3 

1.7 

3.1 

3.0 

3.0 

3.0

1.7

Aug.

4.3 

4.0 

3.5 

3.7 

3.7

3.5 

3.5 

3.3 

3.0 

3.2

3.3 

3.5 

3.5 

3.5 

3.3

3.2 

3.3 

3.3 

3.0 

3.3

3.5 

3.5 

3.5 

3.5 

3.5

3.7 

3.5 

3.5 

3.2 

3.3 

3.2

Mean

3.19 

4.76 

4.95

4.17

4.41 

7.38 

4.35 

3.47 

2.47 

3.11 

4.05 

3.43 

3.94

4.08

Sept.

3.2 

3.0 

3.2 

3.2 

3.2

3.5 

3.5 

3.7 

3.7 

4.0

4.0 

4.2 

4.2 

4.2 

4.3

4.4 

4.5 

4.6 

4.7 

4.8

4.8 

4.5 

4.2 

4.0 

4.0

4.0 

3.7 

3.7 

3.5 

3.7

Runoff in 

acre-feet

196 

283 

304

3,030

271 

404 

261 

306 

152 

185 

349 

210 

234

2,960
LOS ANGELES RIVER BASIN 103

Tujunga Creek below Hansen Dam, Calif.

Location.--Water-stage recorder and sharp-crested weir, lat. 34°15'3l",'long. 118°23'll", 

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 1950 in reports of Geological Survey. April 

JLsaz to sepcemoer .1940 (fragmentary) and October 1940 to September 1950 in Annual Reports of Los Angeles County Flood Control District.

Average discharge. 10 years (1940-50), 31.6 second-feet.

Extremes. Maximum discharge during year, 1.6 second-feet Mar. 1 (gage height, 0.43 foot); 

no now for many days.

1940-50: 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 

FIo"od-control dam.

Cooperation. Gage-height record furnished by Corps of Engineers.

Discharge, In second-feet, water year October 1949 to September 1950

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. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.04 

.08 

.03 

.04

.05 

.01 

.01 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

.03 

.03 

.02 

.02 

.08

.04 

.02 

.02 

.02 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01

Month

Octo 

Move

Deoe

Ca

janu 

Febr 

Marc 

Aprl 

Way.

June 

July 

Augu 

Sept

Wa

ber. . I ..................................

lendar year 1949 

.ary

h. ......................................

ter year 1949-50 .......................

Mar.

0.1 

.02 

.02 

.02 

.02

.02 

.01 

.01 

.01 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-daye

0 

0 

0

1.25

.26 

.42 

.23 

0 

0 

0 

0 

0 

0

.91

May

-

Maximum

0 

0 

0

.08

.08 

.08 

.1 

0 

0 

0 

0 

0 

0

.1

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

, 0 

0 

0

0

Aug.

Hean

0 

0 

0

.005

.008 

.015 

.007 

0 

0 

0 

0 

0 

0

.002

Sept.

Runoff In 

acre-feet

0 

0 

0

2.5

.5

.8 

.5 

0 

0 

0 

0 

0 

0

1.8
104 LOS ANGELES RIVER BASIN

Little Tujunga Creek near San Fernando, Calif.

Location.--Water-stage recorder, lat. 34°16 I 30", long. 118°22'20", in Tujungst Grant, on 

 Foothill Boulevard Bridge, 4 miles east of San Fernando, Los Angeles County. Datum of

gage is 1,067.89 feet above mean sea level (levels by Los Angeles County Flood Control

District).

Drainage area.--21.0 square miles.

Records available.--December 1928 to September 1950.

Average discharge. 23 years, 2.86 second-feet.

Extremes. Maximum discharge during year, 9.8 second-feet Dec. 18 (gage height, 3.22 feet); 

no 1'iow for many months.

1928-50: Maximum discharge, 8,500 second-feet Mar. 2, 1938; no flow for several 

months each year.

Remarks.--Records fair. No known diversion or regulation.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

fi. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

O 

0 

0 

0

0 

0 

0

0 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

0 

0

0 

0

. 0 

0 

0 

0 

0

0

0

1.5

.1

0

0

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.3 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

3.1 

1.0 

.4 

0

.5

.4 

.3 

.2

.1 

0

0 

0 

0

0 

0

0 

0 

0 

0

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febn 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

h...................................... .

ter year 1949-50 .......................

Mar.

O 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.7 

1.6

.2 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

o

0 

1.0 

2.2 

.S

.1 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondroot-days

0 

.1 

1.6

1.8

.3

6.0 

2.5 

4.1 

0 

0 

0 

0 

0

14.6

Way

Maximum

0 

.1

1.5

1.5

.3 

3.1 

1.6 

2.2 

0 

0 

0 

0 

0

3.1

June

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

.OK 

.05

JKK

.01 

.21 

.08 

.14 

0 

0 

0 

0 

0

.04

Sept.

Runoff In 

acre-feet

0 

.2 

3.2

3~. 6

.6

12 

5.0 

8.1 

0 

0 

0 

0 

0

29
LOS ANGELES RIVER BASIN 105

Haines Creek near Tujunga, Calif.

Location, Water-stage recorder and broad-crested weir, lat. 34 e15'50lf , long. 118 e16'15lf , 

in NWtNW^ sec. 17, T.- 2 N., R. 13 W., 0.5 mile upstream from mouth of canyon and 1.5 

miles northeast of Tujunga. Altitude of gage, about 2,430 feet (from topographic map).

Drainage area. 1.2 square miles.

Records available. Creek: February 1917 to September 1934, October 1935 to September

195U.

Diversions: January 1931 to September 1950; some incomplete figures prior to 1931 

in files of Southern California Water Co.

Average discharge.--32 years (1917-34, 1935-50), 0.159 second-foot. Average combined 

 aiscnarge or creek and diversion, 18 years (1931-34, 1935-50), 0.480 second-foot.

Extremes. Maximum discharge during year, about 0.10 second-foot Jan. 8 (.gage height, 1.15 

reet); no flow at times.

1917-34, 1935-50: Maximum discharge, 265 second-feet Mar. 2, 1938 (gage height, 4.6 

feet); maximum gage height, about 11 feet Jan. 1, 1934 (caused by debris wave commonly 

called a mud flow); no flow at tiroes during many years.

Remarks. Records fair. Southern California Water Co. diverts most of flow to two infilT;ration galleries upstream from this station.

Discharge, in second-feet, water year October 1949 to Septsaber 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

0.01

.01

.01

.01

.01

.01

.01

.02

.01

.01

.02

.02

.02

.02

,02

.01

.01

.01

0

O

O

0

0

0

0

0

0

0

.02

.01

.01

Month

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

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

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

Calendar year 1949 .........

January

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

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

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

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

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

July

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

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

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

Feb.

0.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

0

0

0

0

0

o

0

0

0

_

-

Secondfoot-days

O

0

0

-

.28

.19

.11

.01

.16

0

O

O

O

.75

Mar.

O

0

0

0

0

0

.01

.01

.01

.01

.01

.01

.01

.01

.01

0

0

0

.01

.01

0

0

aO

aO

0

0

0

0

0

0

0

Maximum

0

0

0

.02

.01

.01

.01

.01

0

0

0

0

.02

Apr.

0

0

0

0

0

0

0

.01

o

0

0

0

o

0

0

0

0

0

0

0

o

0

0

0

0

0

0

o

0

0

May

o^-

0

0

0

0

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01 .01

.01

o

0

0

0

o

0

0

o

o

0

Hinimum

0

0

0

-

0

0

0

0

0

0

0

0

0

o

June

tMean

0

0

0

-

.009

.007

.004

.0003

.005

0

Q

0

0

.002

July Aug. Sept.

Runoff in acre.-f eet

Creek Diveralont

0 4.4

0 4.4

0 6.5

2.3 85

.6 7.7

 4 8 E

2 75

*02 3 ,3

3 79 o' T'.-Z

0 5.9

0 4.7

0 4.3

1.5 77

Total

4.4

4.4

6.5

87

6 O

T 

8

c.0

7.7

8.3

8 £

7.2

5 9

4.7

4.3

78

t Diversion by Southern California Water Co. Records furnished by that company, 

a No gage-height record; discharge Interpolated.
106 LOS ANGELES RIVER BASIN

Arroyo Seco near Pasadena, Calif.

Location. Water-stage recorder and broad-crested weir control, lat. 34°13'20", long, 

lib"10'40", near north line of sec. 31, T. 2 N., R. 12 W., 1.5 miles upstream from 

Millard Canyon and 5.5 miles northwest of Pasadena. Datum of gage is 1,397.88 feet 

above mean sea level, datum of 1929.

Drainage area.--16.4 square miles.

Records available.--December 1910 to September 1950.

Average discharge.--36 years (1913-15, 1916-50), 10.0 second-feet.

Extremes. Maximum discharge during year, 150 second-feet Nov. 10 (gage height, 2.76 

reet); minimum daily, 0.1 second-foot on several days.

1910-50: Maximum discharge, 8,620 second-feet Mar. 2, 1938, by slope-area method; 

practically no flow for several months in some years.

Remarks.--Records good. No diversion above station. Minor regulation at debris dam 1.5 

miles upstream.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.3 

.4 

.3 

.3

.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Nov.

0.2 

.1 

.1 

.1 

.1

.1 

.2 

.2 

.3 

24

2.2 

1.3 

1.3 

1.2 

1.2

1.1 

1.1 

1.1 

1.0 

1.0

1.0 

.9 

.8 

.7 

.7

.7 

.7 

.8 

.8 

.8

Dec.

0.7 

" .7 

.7 

.7 

.7

.7 

.7 

.8 

.8 

.8

.9 

.9 

1.0 

1.0 

1.0

1.1 

1.1 

19 

35 

8.4

3.6 

3.0 

2.8 

2.8 

2.8

2.6 

2.3 

2.3 

2.3 

2.3 

2.2

Jan.

2.2 

2.2

1.9 

1.9 

1.8

1.8 

1.7 

3.9 

8.6 

3.5

8.9 

14 

6.9 

5.3 

5.3

.9 

.7 

.9 

.9 £ " 9

4.9 

4.9 

4.9 

4.7 

4.5

.3 

.3 

.3 

.5 

.1 

.0

,Peb.

3.3 

3.0 

3.0 

3.0 

3.0

30 

20 

12 

8.7 

9.9

9.7 

7.2 

6.5 

5.8 

5.1

4.7 

4.3 

4.3 

4.1 

4.1

3.7 

3.7 

3.5 

3.5 

3.5

3.1 

3.0 

3.0

Month

Goto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

raber. ...................................

lendar year 1949 

ary

h. ......................................

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

ter year 1949-50 .......................

Peak discharge (base, 150 sec. -ft.). Nov.

Mar.

3.0 

33.0

a2.8 

2.8 

2.6

2.6 

2.3 

2.3 

2.3 

2.3

2.3 

2.3 

2.3 

2.3 

2.3

2.3 

2.3 

2.2 

1.9 

1.9

1.8 

1.7 

1.7 

6.0 

21

3.9 

3.1 

2.8 

2.5 

2.5 

2.3

Apr.

2.3 

2.2 

2.1 

2.0

1.7

1.6 

1.6 

3.9 

12 

4.7

3.7 

3.3 

3.1 

3.0 

2.8

2.6 

2.5 

2.3 

2.2 

2.1

2.2 

2.3 

2.6 

2.3 

2.2

2.2 

2.3 

2.2 

2.1 

1.9

Secondfoot-days

7.0 

45.8 

105.7

743,4

143.6 

178.7 

97.4 

84.0 

53.4 

27.8 

12.2 

6.8 

6.1

768.5

10 (11:20 a

May

2.1 

1.9 

1.8 

1.8 

1.8

1.7 

1.7 

1.7 

1.7 

1.7

1.6 

1.6 

1.6 

1.7 

1.7

1.9 

1.9 

1.9 

1.8 

1.7

1.7 

1.8 

1.9 

1.8 

1.7

1.6 

1.6 

1.6 

1.6 

1.4 

1.4

Maximum

0.4 

24 

35

35

14 

30 

21 

12 

2.1 

1.6 

.6 

.3 

.4

35

June

1.6

1.4 

1.4 

1.3 

1.2

1.3 

1.2 

1.2 

1.0 

1.0

1.0 

1.0 

1.0 

.9 

.9

.8 

.7 

.7 

.7 

.6

.6 

.7 

.9 

.9

.7

.7 

.6 

.6

.6 

.6

July

0.6 

.5 

.6

.5 

.5

.5 

.5 

.4

.5 

.5

.5

.4 

.4 

.4 

.4

.4 

.3 

.4 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Minimum

0.1 

.1 

.7

.1

1.7 

3.0 

1.7 

1.6 

1.4 

.6 

.3 

.1 

.1

.1

Aug.

0.3 

.2 

.2 

.2 

.2

.2

.1 

.1 

.1 

.1

.2 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.1 

.1

.2 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.2 

.2

Mean

0.23

1.53 

3.41

2.04

4.63 

6.38 

3.14 

2.80 

1.72 

.93 

.39 

.22 

.20

2.11

Sept.

0.2 

.2 

.2

.1 

.1

.2 

.2 

.2 

.2

.1

'.2 

.2 

.2 

.2 

.2

.2 

.4

.3 

.3 

.2

.2 

.Z 

.1 

.1 

.2

.2 

.2 

.2 

.3

Runoff in 

acre-feet

14 

91 

210

1,480

285 

354 

193 

167 

106 

55 

24 

13 

12

1,520

.m.) 150 sec. -ft.

a No gage-height record; discharge computed on basis of recorded range In stage and Interpolation.
LOS ANGELES RIVER BASIN 107

Rio Hondo near Montebello, Calif.

Location. Water-stage recorder, lat. 34°01'55", long. 118"04'15", in Potrero Grande 

urant, at Montebello oil field, about 1,000 feet upstream from Mission Bridge and 

2 miles northeast of Montebello, Los Angeles County. Datum of gage is 194.63 feet 

above mean sea level (levels by Los Angeles County Flood Control District).

Drainage area.--115 square miles (excluding area above Santa Fe Dam). 

Records available.--October 1928 to September 1950. 

Average discharge.--22 years, 59.9 second-feet.

Extremes.--Maximum discharge during year, 2,340 second-feet Feb. 6 (gage height, 6.14 

feet); minimum daily, 4.6 second-feet Aug. 19, 20, 22, 30.

1928-50: Maximum discharge, 28,000 second-feet Mar. 2,-1938; minimum, 0.3 secondfoot Dec. 1, 1933.

Remarks. Records good. Flow regulated by Sierra Madre, Big Santa Anita, Sawpit, Eaton, 

and Santa Fe flood-control dams and Las Flores and Rubio debris basins. Many diversions for domestic use and irrigation above station. At times flow is diverted from 

San Gabriel River belpw Santa Fe Dam to Rio Hondo.

Cooperation. Records furnished by Los Angeles County Flood Control District, through 

M. E. nedger, chief engineer.

Discharge, In Beeond-feet, water year October 1949 to September 1950

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.

6.6 

5.8 

7.0 

7.4 

8.6

8.2 

7.8 

6.6 

5.8 

6.2

6.6 

6.6 

7.0 

7.8 

7.4

7.8 

9.0 

8.6 

7.0 

6.2

6.6 

6.6 

6.6 

5.8 

5.4

5.4 

6.2 

6.2 

6.2 

5.8 

5.8

Nov.

6.2 

6.2 

6.2 

5.8 

6.2

6.2 

7.4 

7.8 

82 

558

11 

7.8 

7.4 

8.2 

8.2

8.6 

9.0 

9.0 

9.0 

9.9

12 

11 

9.9 

9.0 

9.0

9.0 

8.6 

8.6 

8.6 

8.2

Dec.

7.8 

7.8 

7.8 

7.8 

7.8

7.8 

7.8 

114 

12 

11

9.9 

11 

9.9 

 9.9 

9.0

9.0 

9.0 

808 

139 

16

13 

13 

13 

12 

11

11 

9.0 

9.9 

9.9 

9.0 

9.0

Jan.

9.0 

9.0 

9.9 

9.9 

11

11 

11 

24 

17 

12

223 

66 

13 

21 

13

13 

13 

13 

13 

13

13 

12 

12 

11

11

9.9 

9.0 

42 

41 

9.0 

8.6

Feb.

8.2 

7.8 

7.8 

7.8 

8.6

555 

20 

13 

13 

98

22 

14 

13 

13 

13

13 

12 

12 

12 

12

9.9 

13 

11 

9.0 

9.0

9.0 

9.0 

9.0

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 194£ 

ary

.......................

h. ......................................

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

ter year 1949-50 .......................

Mar.

9.9 

9.9 

11 

11 

11

11 

11 

11 

12 

11

11 

12 

11 

11 

11

9.9 

11 

11 

9.9 

11

9.9 

11 

11 

234 

74

8.2 

9.0 

9.9 

9.9 

9.0 

9.0

Apr.

9.9 

3.6 

8.6 

9.0 

9.0

9.0 

9.0 

160 

80 

8.6

8.6 

9.0 

9.9 

9.9 

8.6

7.8 

8.2 

7.8 

8.2 

8.2

7.8 

8.6 

8.2 

8.6 

8.6

8.6 

8.6 

8.6 

8.6 

8.6

Secondfoot -day B

210.6 

874.0 

1,342.1

6,498.0

703.3 

954.1 

612.5 

482.7 

231.4 

198.1 

188.9 

157.3 

243.5

6,198.5

May

8.2 

9.0 

11 

7.8 

7.0

7.4 

6.6 

7.0 

6.6 

6.6

.0 

.0 

.4 

.4 

.4

.8 

.8 

7.4 

7.8 

7.4

7.0 

7.0 

7.8 

7.4 

7.0

6.6 

7.8 

7.8 

7.0 

7.8 

6.6

Maximum

9.0 

558 

808

808

223 

555 

234 

160 

11 

9.7 

13 

7.0 

83

808

June

6.2 

6.6 

7.0 

6.2 

5.8

9.7 

7.8 

7.4 

7.0 

6.6

6.2 

6.6 

6.2 

6.2 

6.2

6.6 

6.6 

6.6 

6.6 

6.6

6.6 

6.6 

6.6 

- 6.6 

6.2

6.2 

6.2 

6.2 

6.2 

6.0

July

5.8 

5.6 

5.4 

5.2 

4.9

5.0 

5.0 

5.0 

13 

6.2

6.2 

6.2

6.2 

5.4 

5.8

5.8 

5.8 

5.0 

5.4 

5.4

5.8 

6.2 

6.2 

5.8 

6.2

6.2 

7.0 

6.6 

6.6 

7.4 

6.6

Minimum

5.4 

5.8 

7.8

4.8

8.6 

7.8 

8.2 

7.8 

6.6 

5.8 

4.9 

4.6 

4.8

4.6*

Aug.

7.0 

6.2 

6.6 

5.8 

6.6

5.0 

5.0 

4.8 

4.8 

4.7

4.8 

4.9 

.9 

.8 

.8

.9 

.8 

.4

.6 

.6

.7 

.6 

.8 

.8 

.9

.8 

.8 

.8 

4.7 

4.6 

4.8

Mean

6.79 

29.1 

43.3

17.8

22.7 

34.1 

19.8 

16.1 

7.46 

6.60 

6.09 

5.07 

8.12

f 17.0

Sept.

4.J 

5.0 

5.0 

6.2 

5.4

7.0 

7.4 

7.8 

5.0 

4.9

6.2 

5.0 

4.9 

4.8 

4.8

4.9 

83 

7.4 

6.2 

5.0

5.0 

4.9 

5.8 

5.0 

5.8

5.4 

5.4 

5.4 

5.0 

5.0

Runoff in 

acre-feet

418 

1,730 

2,660

12,880

1,390 

1,890 

1,210 

957 

459 

393 

375 

312 

483

12,280
108 LOS ANGLES RIVER BASIN

Rio Hondo near Downey, Calif.

Location. Water-stage recorder, lat. 33°56'40", long. 118 0 09'50", in San Antonio Grant 

on Stewart and Gray Road Bridge, 0.5 mile upstream from mouth and 1.5 miles west of 

Downey, Los Angeles County. Datum of gage is 89.91 (corrected) feet above mean sea 

level (levels by Los Angeles County Flood Control District).

Drainage area. 140 square miles (excluding the area above Santa Fe Dam). 

Records available. March 1928 to September 1950. 

Average discharge.--82 years, 30.4 second-feet.

Extremes.--Maximum discharge during year, 1,790 second-feet Jan. 8 (gage height, 6.50 

feet); no flow during several days.

1928-50: Maximum discharge, 24,400 second-feet Mar. 3, 1938,(gage height, 13.5 

feet); no flow during part of each year.

Remarks.--Records good. Plow regulated by Sierra Madre, Big Santa Anita, Sawpit, Eaton, 

and Sante Pe flood-control dams and las Plores and Rubio debris basins. Many diversions above station for domestic use and irrigation. At times flow is diverted from 

San Gabriel River below Santa Pe Dam to Rio Hondo. ;

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

0 

0 

.5 

.8 

.8

1.9 

3.3

1.9 

1.3 

1.5

1.5 

.6

.4 

1.6

1.6

0 

.4 

.9 

.4 

.6

.4 

1.2 

.8 

.8 

.5

.3 

1.0 

0 

0 

0 

0

Nov.

0.8 

0 

.3 

0 

0

0 

0 

0

.8 

199

2.7 

.5 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

0 

.4 

0 

0

0 

0 

0 

0 

0

0 

0 

402 

92 

6.1

1.0 

.2 

.3 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

180 

1.7 

.1

63 

20 

1.2 

0 

0

0 

0 

0 

0 

0

0 

0 , 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

298 

1.2 

0 

0 

2.0

1.3 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Deee

Ca

janu 

Febr 

Marc 

Apr!

Mnv

June 

July 

Augu 

Sept

Wa

nber. ...........------ ...-.--...-..-.-.

lendar year 1949

ter year 1949-jj^. ......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

42 

46

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

1.9 

15 

0

0 

0 

0 

0 

.3

0 

0 

0 

0 

.8

1.0 

1.0 

0 

.5

.3

o"

.4

.9 

1.5

Secondfoot-days

25.5 

204.1 

502.0

1,237.7

266.0 

302.5 

88 

24.5 

12.4 

6.1 

.8 

0 

0

1,431.9

May

1.6 

1.5 

.7 

.1 

.8

.6 

1.2 

.9

.2 

.3

0 

0

.4 

0 

.1

0 

0

.1

0

.2

0 

.3

.4 

.4 

.5

.6

.2 

.1 

.4

.4 

.4

Maximum

3.3 

199 

402

402

180 

298 

46 

15 

1.6 

.9 

.4 

0 

0

402

June

0.4 

.4 

.4 

.1 

.9

.9 

.4 

0 

0 

.2

.1 

.4 

.8 

.7 

0

.4 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

0.1 

0 

0

.3

0 

0 

0 

0 

0

0 

0

0 

0

.4

0 

0 

0 

0 

0

0 

0

a

0 

0

0 

0 

0 

0 

0 

0

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

-

Mean

0.82 

6.80

16.2

3.39

8.58 

10.8 

2.84 

.82 

.40 

.20 

.03 

0 

0

3.92

Sept.

Runoff in 

acre-feet

51 

405 

996

2,460

528 

600 

175 

49 

25 

12 

1.6 

0 

0

2,840
LOS ANGELES RIVER BASIN 109

Sawpit Creek near Monrovia, Calif.

Location. Water-stage recorder and broad-crested weir, lat. 34°10'25", long. 117 0 59'20", 

in MKtSWt sec. 13, T. IN., 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 1950.

Average discharge. 33 years (1917-50), 1.21'second-feet; including diversion by Monrovia 

pipe line, 33 years, 2.69 second-feet.

Extremes.--Maximum discharge during year, 13 second-feet Nov. 10 (gage height, 0.77 foot); 

no now during several periods.

1916-50: 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. Plow regulated by Sawpit Dam on Sawpit Creek. Diversion by city 

dTTTonrovia from Monrovia Creek.

Cooperation. One discharge measurement furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer. Record of diversion to Monrovia pipe 

line furnished by city of Monrovia.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

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

o

0

o

o

o

.1

1.9

.1

O

0

0

0

0

0

0

0

0

o

o

o

o

o

0

0

0

0

0

-

Dec.

0

0

0

o

o

0

0

0

0

0

0

0

0

0

o

o

0

2.2

1.5

.5

0

0

0

0

o

0

0

o

0

o

o

Jan.

o

0

0

0

0

0

0

0

0

o

.2

.1

0

0

0

0

0

0

0

0

o

o

o

0

0

o

o

.1

.1

0

o

Month

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

TIiniOBlirii .........................

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

Calendar year 1949 ............

Jam 

Pebr

aiy ..........................

uanr . ........................

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

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

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

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

august ...........................

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

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

Feb.

0

0

o

o

0

1,7

1.2

.4

.1

0

0

0

o

o

o

0

0

0

o

0

0

0

0

0

0

o

0

o

_

, -

Seoondfoot-days

0

2.1

4.2

14.4

.5 

3.4

.7 1.1

0

.1

0

0

12.9

Mar.

o

o

o

0

o

o

o

0

0

o

0

0

0

o

0

'0

0

0

0

0

0

0

0

.4

.3

0

o

0

0

0

o

Apr.

0

0

0

o

o

o

0

.6

.5

O

O

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

Maximal

0

1.9

2.2

7.1

.2

1.7

.4

.6

0

.10

0 

0

2.2

May

«un«

0

0

0

0

0 

0

0

0

0

0

0

0 

0

0

June

o

0

0

0

0

0

0

0

0

o

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

_

0

.07

.14

.04

.02 

.12

.02

.04

0

.003

.03

0 

0

.04

July

0.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

at*.

Runoff in 

acre-feet

0

4.2

8.3

28

1.0 

6.7

1.4 

2.2

0

.2

1.6

0

0

2S

s«*»t.

Diversions 

in 

acre-feett

45

47

69

772

89

109

86

T8

69

53

40

36

36

757

t Diversion to Monrovia pipe line.
110 LOS ANGELES RIVER BASIN

Santa Anita Creek near Sierra Madre, Calif.

Location. Water-stage recorder, lat. 34°li'30", long. 118°01'00", in SW^NE^ sec. 10, T. 

IN., R. 11 W., at head of Hermits Falls, 1 mile upstream from Big Santa Anita Dam 

and 4 miles northeast of Sierra Madre. Datum of gage is 1,475 feet above mean sea 

level.

Drainage area.--10.5 square miles.

Records available.--July 1916 to September 1950.

Average discharge.--34 years, 6.03 second-feet.

Extremes. Maximum discharge during year, 125 second-feet Dec. 18 (gage height, 2.54 feet); 

minimum daily, 0.1 second-foot Sept. 2-5.

1916-50: 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.

peratlon.--One discharge measurement furnish 

brict, through H. E. Hedger, chief engineer.

Cooperation.--One discharge measurement furnished by Los Angeles County Flood Control Distr

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3 

.3

Nov.

0.2 

.2 

.2 

.2 

.2

.3 

.3 

.4 

.7 

28

3.8 

2.0 

1.5 

1.2 

1.0

.9 

.8 

.7 

.7 

.7

.7 

 .7 

.7 

.7 

.6

.6 

.6 

.6 

.7 

.6

Dec.

0.6 

.6 

.7 

.7 

.7

.7 

.8 

1.6 

1.4 

1.0

.9 

.9 

.9 

.8 

.8

.8 

.8 

31 

22 

9.1

5.7 

4.3 

3.6 

2.9 

2.7

2.6 

2.2 

2.1 

2.1 

2.0 

1.9

Jan.

1.8 

1.8 

1.7 

1.7 

1.7

1.6 

1.6 

4.7 

4.6 

2.7

7.7 

8.2 

5.5 

4.6 

4.3

3.7 

3.4 

3.2 

3.1 

3.1

2.S 

2.7 

2.7 

2.6 

2.4

2.4 

2.3 

2.7 

4.8 

3.1 

2.8

Feb.

2.7 

2.4 

2.3 

2.2 

2.2

24 

11 

7.9 

6.2 

7.5

6.6 

5.5 

4.8 4.3- 

4.1

3.9 

3.7 

3.6 

3.6 

3.4

3.4 

3.2 

3.1 

2.9 

2.8

2.7 

2.7 

2.6

Month

Goto 

NoVe 

Dece

Ca

Janu 

Febr 

.Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194£ 

ary

.......................

ter year 1949-5C ......... ...... ...

Mar.

2.7 

2.7 

2.7 

2.6 

2.4

2.4 

2.4 

2.3 

2.3 

2.3

2.3 

2.3 

2.2 

2.2 

2.1

2.1 

2.1 

2.0 

2.0 

2.0

1.9 

1.9 

1.9 

8.8 

9.7

4.1 

3.4 

3.1 

2.7 

2.4 

2.3

Apr.

2.2 

2.1 

2.0 

2.0 

2.0

1.9 

1.9 

15 

12 

7.6

5.9 

5.2 

4.6 

4.3 

3.9

3.6 

3.2 

3.1 

2.9 

2.8

2.S 

2.9 

2.9 

2.8 

2.7

2.6 

2.4 

2.4 

2.4 

2.4

Secondfoot -days

3.4 

50.5 

108.9

671.6

102.0 

135.3 

88.3 

114.5 

63.7 

31.6 

14.9 

8.5 

10.2

736.8

May

2.4 

2.3 

2.4 

2.4 

2.3

2.3 

2.3 

2.3 

2.2 

2.1

2.0 

1.9 

2.0 

2.1 

2.1

2.2 

2.3 

2.2 

2.1 

2.0

1.9 

2.0 

2.1 

2.1 

1.9

1.8 

1.7 

1.7 

1.6 

1.5 

1.5

Maximum

0.4 

28 

31

31

8.2 

24 

9.7 

15 

2.4 

1.5 

.6 

.4 

.7

31

June

1.5 

1.4 

1.4 

1.3 

1.2

1.4 

1.4 

1.3 

1.0 

1.0

1.0 

1.0 

1.1 

1.2 

1.2

1.1 

1.1 

1.0 

.9 

.9

.9 

.9 

.9 

1.0 

1.0

.8 

.8 

.7 

.6 

.6

July

0.5 

.4 

.4 

.4 

.4

.4 

.4 

.5 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Aug.

0.4 

.3 

.3

.4 

.4

.3

.3 

.3 

.2 

.2

.3 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2.

.2 

.3 

.3 

.3 

.3

.3 

.3 

.3

.2 

.2 

 2

Minimum Mean

0.2 0.27 

.2 1.68 

.6 3.51

.1 1.84

1.6 3.29 

2.2 4.83 

1.9 2.85 

1.9 3.82 

1.5 2.05 

.6 1.05 

.4 .48 

.2 .27 

.1 .34

.1 2.02

Sept.

0.2

.1 

.1 

.1 

.1

.2 

.3 

.3 

.4 

.3

.4 

.4 

.4 

.4 

.4

.4 

.7 

.7 

.5 

.5

.4 

.4 

.3 

.3 

.3

.4 

.3 

.3 

.3 

.3

Runoff In 

acre-feet

17 

100 

216

1,330

202 

269 

175 

227 

.126 

63 

30 

17 

20

1,460

Peak discharge (base, 40 sec. -ft.). Nov. 10 (6:20 a.m.) 115 sec. -ft.; Dec. 18 (7:30 p.m.) 125
LOS ANGELES RIVER BASIN 111

Little Santa Anita Creek near Sierra Madre, Calif.

Location.--Water-stage recorder and concrete control, lat. 34°11'15", long. 118°02'35", 

near center of NWj 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 2,300 feet (from 

topographic map).

Drainage area.--1.9 square miles.

Records available.--April 1916 to September 1950.

Average discharge.--33 years (1916-25, 1926-50), 0.93 second-foot.

Extremes.--Maximum discharge during year, 26 second-feet Nov. 10 (gage height, 1.62 feet); 

minimum daily discharge, 0.02 second-foot on many days.

1916-50: Maximum discharge, 536 second-feet Mar. 2, 1938, computed on basis of inflow to Sierra Madre flood-control reservoir; no flow during periods in 1919, 1924, 

1925.

Remarks.--Records good. No diversion above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.02 

.02 

.03 

.03 

.04

.04 

.04 

.05 

.05 

.05

.05 

.05 

.05 

.05 

.04

.04 

.05 

.04 

.04 

.04

.04 

.04 

.04 

.03 

.02

.03 

.03 

.02 

.02 

.02 

a. 02

Nov.

0.02 

.02 

.02 

.02 

.02

.02 

.02 

.02

.04 

3.9

.5 

.3 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Dec.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

4.0 

2.8 

1.4

.9 

.7 

.6 

.7

.6

.5 

.4 

.3 

.3 

.3 

.3

Jan.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.5 

.4 

.4

.8 

.7 

.6 

.6 

.5

.5 

.5 

.4

.4 

.4

.4 

.4 

.4 

, .* 

.3

.3 

.3 

.4 

.5

.4 

.3

Feb.

0.3 

.3 

.3 

.3 

.3

2.0 

1.4 

1.1 

.9 

1.2

1.1 

.9 

.9 

.8 

.8

.8 

.7 

.6 

.6 

.6

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 194S .

ter year 1949-50 .......................

Peak discharge (base, 7.0 sec. -ft.) .--Nov.

Mar.

0.4 

.4 

.4 

.3 

.3

.4 

.4 

.3 

.3 

.3

.4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

2.0 

1.5

.9 

.8 

.7 

.7 

.6 

.6

Apr.

0.6 

.6 

.5 

.5 

.5

.5 

.5 

3.0 

1.8 

1.2

1.0 

.9 

.9 

.8 

.8

.7 

.7 

.6 

.5 

.5

.5 

.5 

.5 

.5

.4

.4 

.4 

.4 

.4 

.4

Secondfoot-days

1.13 

7.20 

16.6

97.31

12.9 

19.6 

15.4 

21.5 

8.6 

4.6 

1.92 

.97 

.92

111.34

May

0.4

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Maximum

0.05 

3.9

4.0

4.0

.8 

2.0 

2.0 

3.0 

.4 

.2 

-.08 

.07 

.08

4.0

June

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.1 

.2 

.2 

.2

'.2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.1

.1 

.1 

.1 

.1 

.1

Minimum

July

0.08 

.08 

.07 

.06 

.06

.06 

.06 

.05 

.07 

.07

.07 

.07 

.06 

.06 

.05

.05 

.05 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06 

.07

Aug.

0.07 

.06 

.05 

.05 

.05

.06 

.04 

.04 

.04 

.03

.03 

.03 

.03 

.03 

.03

.03 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02- 

.02

.02 

.02 

.02 

.02 

.02 

.02

Mean

0.02 0.036 

.02 .240 

.1 .54

.267

.3 .42 

.3 .70 

.3 .50 

.4 .72 

.2 .28 

.1 .15 

.05 .062 

.02 .031 

.02 .031

.02 .305

Sept.

0.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02

.02 

.03 

.02 

.02 

.02

.02 

.08 

.04 

.04 

.04

.03 

.03 

.04 

.04 

.04

.04 

.04 

.04 

.04 

.05

Runoff In 

acre-feet

2.2 

14 

33

192

26 

39 

31 

43 

17 

9.1 

3.8 

1.9 

1.8

228

10 (7:05 a.m.) 26 sec. -ft.; Dec. 18 (8:30 p.m.) 22 sec.

ft.; Feb. 6 (4:2O a.

a No gage-height record; discharge Interpolated
112 LOS ANGELES RIVER BASIN

Eaton Creek near Pasadena, Calif.

Location. Water-stage recorder and broad-crested weir, lat. 34°11'40", long. 118°06'15"> 

in SE£ sec. 2, T. 1 N., R. 12 W., at mouth of canyon, Just upstream from bridge on old 

Mount Wilson toll road and 4 miles northeast of Pasadena. Altitude of gage, about 

1,230 feet (from topographic map).

Drainage area. 6.5 square miles.

Records available. March 1918 to September 1950.

Average discharge. 32 years, 2.52 second-feet. Average combined discharge of creek and 

upstream <uversions above this station, 32 years, 3.82 second-feet.

Extremes . Maximum discharge during year, 75 second-feet Nov. 10 (gage height, 1.44 

reet } ; no flow during most of year.

1918-50: Maximum discharge, 2,400 second-feet Mar. 2, 1938, from record of Inflow 

to Eaton flood-control reservoir; no flow for some periods in each year.

Remarks. Records fair. 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 was Included. In the current year it amounted to 10.8 

percent of the upstream diversions.

Discharge, in seocad-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. NOT.

0

0

o

o

o

o

0

o

0

15

1.7

.2

O

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

-

Dec.

o

o

o

0

o

o

o

0

o

0

0

0

0

0

0

0

0

14

11

2.1

0

0

0

0

o

0

0

0

o

0

o

Jan.

0

0

0

0

o

0

0

1.1

.3

0

1.5

0

0

0

0

0

0

0

0

0

0

0

0

 0

0

.1

0

0

0

0

0

Month

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

Hoveaber .........................

Decenber .........................

Calendar year 1919 ............

January

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

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

April ......................:.....

tv............. .................

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

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

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

Septeater ........................

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

Feb.

0

0

0

o

0

IS

4.9

.2

0

.3

0

O

0

0

0

O

0

0

O

0

0

0

0

o

0

0

0

0

_

-

Secondfoot-days

0

16.9

27.1

61.5

3.0

21.4

6.5

2.7

O

0

0

O

0

77.6

Har.

0

o

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.4

3.1

0

0

0

0

0

0

Apr.

o

o

o

0

0

0

0

1.7

1.0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

Maxima

0

15

14

15

1.5

16

3.4

1.7

0

0

o

o

0

16

May

Minima

0

0

0

o

0

0

0

0

o

0

0

0

0

0

June

Mean

0

.56

.87

.17

.10

.76

.21

.09

0

0

0

0

o

.21

July Aug.

Runoff in 

aor«-feet

0

34

54

123

6.0

42

13

5.4

0

0

O

0

0

154

Sept.

Diversions 

in 

acre-feet t

12

32

78

708

105

159

80

65

50

31

17

11

10

670

Peak discharge (base,-55 aec.-ft.). Nov. 10 (8:20 a.m.) 75 sec.-ft. 

t Diversion By city of- Pasadena. Records furnished by that city. 
LOS ANGriES RIVER BASIN 

Mission Creek near Montebello, Calif.

113

Location. Water-stage recorder, lat. 34°01<45", long. 118°04'07", in ( Paso de Bartolo 

urani;, at San Gabriel Boulevard Bridge, 2 miles northeast of Montebello, Los Angeles 

County. Altitude of gage, about 193 feet.

Records available. October 1932 to September 1950 in reports of Geological Survey. July 

13B8 to September 1932 (weekly discharge measurements only prior to September 1929) in 

files of Los Angelea County Flood Control District.

Average discharge.--20 years (1929-37, 1938-50), 18.8 second-feet.

 Extremes. Maximum discharge during year, 26 second-feet Jan. 8 (gage height, 6.62 feet); 

minimum daily, 7.5 second-feet Aug. 9.

1929-50: Maximum discharge not determined, occurred Mar. 2, 1938; minimum discharge, 

4.8 second-feet Oct. 4, 1935. A discharge of 336 second-feet occurred Feb. 22, 1944 

(gage height. 10.75 feet).

Remarks. Records good. Flow is almost entirely from ground-water seepage.

Cooperation. Records furnished by Los Angeles County Flood Control District, through 

M. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30

31

Oct.

12

12 

12 

11 

11

11 

11

11 

12 

12

12 

12 

12 

12 

12

13 

13 

13 

13 

13

13 

13 

13 

13 

12

12 

13 

13 

13 

13 

13

Mov.

13 

13 

13 

13

13

13 

13 

13 

13 

15

14 

14 

13

13 

13

13 

13 

13 

13 

13

13

IS 

13 

13 

13

13 

13 

13 

12 

12

Dec.

12 

12 

12 

13 

13

13 

13 

13 

13 

13

14

14 

14 

14 

14

14 

14 

15 

16

IS

14 

14 

14

14 

14

14 

14 

14 

15 

15 

15

 Jan.

15

15 

15 

15 

15

15

15 

17 

17 

15

16 

16 

15 

15 

15

15 

14 

14 

14 

14

14 

14 

15 

14 

15

15 

IS 

15 

15 

15 

15

Feb.

15 

15 

15 

15 

15

19

16 

16 

16 

16

16 

15 

15

15 

15

14 

14 

14 

14 

14

14 

14

14 

14

14

14

14 

14

Month

Goto 

Hove 

Dace

Ca

Janu 

Pebr 

Marc 

Aprl

 HIT

June 

July 

Augu

Sept

Wa

iiber ... . . . . - - - .

lendar year 1949

ter year 1949-50 .......................

Mar.

54 

14

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14

14

14

14 

14 

13 

14 

14

14 

14 

14 

14 

14 

14

Apr.

14 

14 

14 

14 

13

13 

13 

13 

14

14

14 

14 

14 

14 

14

13 

13 

13 

13

13

14 

13

14 

14 

14

14 

14 

14 

14

14

Secondfoot -days

381 

392 

428

5,143

464 

416 

433 

410 

373 

313.3 

288.8 

260.8 

266.5

4,426.4

May

14 

14 

14 

14 

14

14 

13 

13 

13 

13

13 

13 

12 

12

11

11 

11 

11 

11 

11

11 

11 

11

11 

11

11 

11 

11 

11 

11 

11

Maximum

13

15 

16

24

17 

19 

14 

14 

14 

11 

9.7 

9.2 

9.5

19

June

11 

11 

11

11 

11

11

11 

11 

11 

11

11 

11 

11 

10 

10

10 

10 

10

11

10

10 

10 

10 

10 

10

10 

9.9 

9.8 

9.8 

9.8

July

9.7 

9.6 

9.4 

9.3 

9.2

9.2 

9.3 

9.4 

9.4 

9.4

9.5 

9.5 

9.6 

9.6 

9.6

9.6 

9.7 

9.7 

9.7 

9.6

9.5 

9.3- 

9.2 

9.0 

8.8

8.8 

8.8 

8.8 

8.8 

8.9 

8.9

Aug.

8.9 

8.9 

S.8 

8.8 

S.5

8.2 

8.0 

7.8 

7.5

7.7

8.0 

8.0 

8.0 

8.0 

S.2

8.3 

8.3 

8.3 

8.3 

8.4

8.3 

8.3 

8.3 

8.5 

8.6

8.7 

. 8.8 

9.0 

9.1 

9.2 

9.1

Mlnlnura Mean

11 12.3 

12 13.1 

12 13.8

10 14.1

14 15.0 

14 14.9 

13 14.0 

13 13.7 

11 12.0 

9.8 10.4 

S.8 9.32 

7.5 8.41 

8.3 8.8S

7.5 12.1

Sept.

S.9 

S.8 

8.8 

8.7 

8.4

8.3 

S.4 

3.6 

S.8 

S.9

9.0 

9.2 

9.3 

9.4 

9.5

9.4 

9.5 

9.4 

9.0 

9.0

S.9 

8.8 

8.8 

8.8 

8.8

 8.7 

8.6 

8.6 

8.6

8.6

Runoff In 

acre-feet

756 

778 

849

10,200

920 

825 

859 

813 

740 

621 

573 

517 

529

8,780
114 BALLONA CREEK BASIN

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. Datum of 

gage is 11.26 feet above mean sea level (levels by Cos Angeles-County Flood Control 

District).

Drainage area.--Ill square miles.

Records available.--February 1928 to September 1950..

Average discharge. 22 years, 35.2 second-feet.

Extremes. Maximum discharge during year, 7,670 second-feet Feb. 6 (gage height, 12.19 

feet ) . minimum daily, 1.4 second-feet July 23.

1928-50: Maximum discharge, 19,000 second-feet Mar. 2, 1938; no flow during parts 

of some years.

Remarks.--Records fair. Flow regulated at Stone Canyon Reservoir, upper and lower FranKLin 

Canyon Reservoirs, Hollywood Reservoir, and Silver Lake Reservoir. The above reservoirs 

impound water imported from Owens River Basin. Some small pumping diversions above 

station for irrigation.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

Pi. K. Hedger, chief engineer.

Revisions (water year).--W 881: 1938.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.4 

4.0 

3.6 

6.4 

5.7

7.3 

6.8 

6.8 

6.6 

6.6

6.4 

6.-2 

6.8 

6.2 

7.5

6.4

7 

7 

7.3 

6.8

6.8

7 

6.8 

6.4 

6

5.5 

5.1 

5.4 

5.8 

6.1 

6.5

Nov.

6.8 

7.2 

7.5 

8.4 

9.3

10 

11 

12 

317 

833

13 

7.0 

4.2 

7.8 

8.5

10 

8.5 

9.2 

8.5 

5.6

7.0 

9.2 

7.0 

7.0 

3.5

6.3 

4.9 

7.0 

13 

9.2

Dec.

7.8 

7.0 

8.5 

7.0 

7.0

5.6 

93 

467 

12 

5.6

5.6 

4.9 

6.3 

7.0 

39

10 

7.0 

1,620 

247 

11

8.5 

7.8 

9.2 

7.0 

3.5

3.5 

3.5 

6.3 

12 

9.2 

8.5

Jan.

7.0 

12 

12 

7.8 

6.3

4.2 

4.9 

1,040 

32 

4.2

857 

280 

11 

82 

10

9.2 

12 

7.0 

7.8 

6.3

6.3 

6.3 

5.6 

6.3 

6.3

5.6 

6.3 

147 

96 

8.5 

5.6

Feb.

4.2 

5.6 

6.3 

6.3 

22

1,330 

23 

9.2 

6.3 

287

21 

10 

11 

10 

9.2

6.3 

7.8 

7 8 

4.9 

6.3

7.8 

7.0 

7.0 

9.2 

7.0

7.8 

8.5 

24

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1949 

ary

St..... .................................

ter year 1949-50 .......................

Mar.

38 

22 

4.2 

4.2 

3.5

3.5 

5.6 

6.3 

7.8 

3.5

8.5 

3.5 

6.3 

9.2 

5.6

7.0 

10 

11 

6.3

11

8.5 

7.8 

7.0 

570 

128

12 

10 

7.8 

7.0 

7.0 

5.6

Apr.

7.0 

4.9 

8.5 

8.5 

9.2

7.0

10 

178 

257 

11

11 

5.6 

6.3 

7.0 

4.9

4.9 

7.8 

7.8 

8.5 

, 8.5

8.5 

7.0 

6.3 

.0 

.O

.0 

.0 

.0 

9.2 

4.9

Secondfoot -days

195.2 

1,378.6 

2,657.3

10,159.0

2,712.5 

1,872.5 

947.7 

644.3 

229.5 

233.7 

254.5 

219.6 

375.5

11,720.9

May

7.8 

7.0 

7.0 

6.3 

8.5

8.5 

5.6 

9.2 

11 

12

9.2 

8.5 

5.6 

4.9 

9.2

13 

8.5 

6.3

7.0 

7.8

5.6 

6.3 

4.2 

4.9

7.8

5.6 

14 

3.5 

4.9 

3.5 

6.3

.Maximum

7.5 

833 

1,620

1,620

1,040 

1,330 

570 

257 

14 

13 

18 

15 

194

1,620

June

6.3 

8.5 

7.0 

4.9 

7.8

7.8 

9.2 

9.2 

9.2 

9.2

7.0 

7.8 

9.2 

7.0 

5.6

7.8 

5.6 

2.8 

4.9 

8.5

8.5 

12 

5.6 

6.3 

2.8

10 

i 10 

9.2 

11 

13

July

12 

9.2

11 

7.0

18

11 

9.2 

7.0 

5.6 

8.5

7.0 

6.3 

5.6 

5.6 

4.2

3.5 

7.8 

' 7.0 

7.8 

10

12 

12 

1.4 

7.8 

10

12 

8.5 

7.8 

8.5 

4.9 

6.3

Aug.

9.2 10' 

13 

15 

12

7.0 

8.5 

13 

9.2

11

12 

8.5 

6.3 

9.2 

8.5

10 

4.1

4.1 

4.1 

4.0

4.0 

3.9 

3.8 

3.8 

3.8

3.7 

3.7 

3.6 

3.6 

3.5 

3.5

Sept.

3.5 

3.5 

45 

7.4 

7.4

7.4 

7.4 

6.^5 

6.3 

5.9

5.4 

5.0 

4.6 

4.1 

4.1

4.1 

194 

4.2 

4.2 

4.3

4.3 

4.3 

4.2 

4.2 

4.1

4.1 

4.0 

3.9 

3.3 

3.9

Mining i «ean \%g*£

3.6 ; 6.30 ' 387 

3.5 ! 46.0 2,730 

3.5 85.7 5,270

2~.8 27.8 I 20,140

4.2 87.5 5,380 

4.2 1 66.9 3,710 

3.5 30.6 1,880 

4.9 21.5 1,280 

3.5 7.40 455 

2.8 7.79 ' 464 

1.4 8.21 505 

3.5 7.08 436 

3.5 12.5 ' 745

1.4 32.1 23,240
TOPANGA CREEK BASIN 115

Topanga Creek near Topanga Beach, Calif.

Location. Water-stage recorder, lat. 34°03'50", long. 118°35 1 10", in Boca de Santa Monica 

urant, at highway bridge, 2 miles north of Topanga Beach, Los Angeles County. Datura of 

gage is 265.60 feet above mean sea level (levels by Los Angeles County Flood Control 

District).

Drainage area.--17.9 square miles.

Records available.--January 1930 to September 1938, October 1939 to September 1950.

Average discharge.--19 years (1930-38, 1939-50), 5.62 second-feet.

Extremes. Maximum discharge during year, 275 second-feet Dec. 18 (gage height, 4.02 feet); 

minimum daily, 0.01 second-foot Aug. 8-11.

1930-38, 1939-50: Maximum discharge, 7,960 second-feet Mar. 2, 1938; no flow at 

times.

Remarks.--Records good. No diversion or regulation above station.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. IS. Hedger, chief engineer.

Discharge, In second-feet, water year October 1949,to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.03 

.03 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.03

.03

.03 

'.03 

.03 

.03

.03 

.04 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.03 

.03

Hov.

0.03 

.03 

.03 

.03 

.03

.03 

.03 

.03

.1 

.3

.07 

.04 

.04 

.04 

.04

.Oi

.04 

.04 

.05 

.05

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

Dec.

0.06 

.06 

.06 

.06 

.05

.05 

.1 

1.0 

.4 

-2

.2 

.1 

.1 

.1 

.1

.1 

.1 

35 

4.2 

.9

.3

.2 

.2 

.2 

.2

.1 

.1 

.1

.1 

.1 

.1

Jan.

0.1

.1 

.1 

.1 

.1

.1 

.1 

20 

3.1

.6

13 

8.4 

3.0 

2.6 

2.2

1.4 

1.1 

.9 

.7 

.5

.4 

.4

.4 

.4 

.4

.4 

.3 

.4 

.8 

.5 

.3

Feb.

0.2 

.2 

.2 

.2 

.2

35 

3.5 

2.0 

1.5 

2.4

2.-1 

1.3 

1.0 

.9

.8

.7 

.7 

.6 

.5 

.5

.4 

.4 

.4 

.3 

.3

.3 

.3 

.3

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194S

ter year 1949-50 .......................

Mar.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.4 

1.3

.8 

.5 

.4 

.3 

.3 

.2

Apr.

0.2 

.2

.1 

.1

.1

.1 

.1 

.1 

.2 

.3

.2 

.2 

.2 

.2 

.2

.2

.2 

.3 

.3

.3 

.2

f 2

.2 

.2

.2 

.2 

.2 

.2 

.2

May

0.2

.1

.1

.1

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

:i .1

. i

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

£E3£. ««! 

0.94 0.04 

1.69 .3 

44.64 35

78.89 35

|_

62.9 20 

57.2 35 

9.8 1.3 

5.8 .3 

3.3 .2 

2.12 .1 

.94 .04 

.93 .05 

1.22 .07

191.48 35

June

0.1 

.1

.1 

.1 

.1

.1 

.1 

.05 

.05 

.05

 I 

.1 

.1 

.1

.1

.1 

.1 

.05 

.05 

.05

.04 

.04 

.04 

.04 

.04

.04 

.05 

.05 

.04 

.04

July

0.04 

.04 

.04 

.04 

.04

.04 

.04 

.04 

.04 

.04

.04 

.04 

.04 

.04 

.03

.03 

.03 

.03 

.02 

.02

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02 

.02

Minimum

0.03 

.03 

.05

.01

.1 

.2 

.2

.1 

.1 

.04 

.02 

.01 

.02

.01

Aug.

0.02 

.02 

.02 

.02 

.02

.02 

.02 

.01 

.01 

.01

.01 

.02 

.02 

.02 

.02

.03 

.03 

.03 

.03 

.03

.03

.04

.05 

.05

.05

.05 

.05 

.05 

.05 

.05 

.05

Mean

0.030 

.056 

1.44

.216

2.03 

2.04 

.32 

.19 

.11 

.071 

.030 

.030 

.041

.525

Sept.

0.05 

.05 

.05 

.05 

.05

.05 

.05 

.05 

.05 

.05

.04 

.04 

.04 

.04 

.04

.04 

.07 

.04 

.04 

.03

.03 

.03 

.03 

.03 

.02

.03 

.03 

.04 

.03 

.03

Runoff In 

acre-feet

1.9 

3.4 

89

157

125 

113 

19 

12 

6.5 

4.2 

1.9 

1.8 

2.4

380
116 MALIBU CREEK BASIN

Malibu Creek at Crater Camp, near Calabasas, Calif.

Location.--Water-stage recorder, lat. 34°04 1 30", long. 118°42'10", in SWi sec. 18, T. 1 

a., K. 17 W., 0.2 mile downstream from Crater Camp and 16 miles southwest of Calabasas. 

Datum of gage is 430.51 feet above mean sea level (levels by Los Angeles County Flood 

Control District).

Drainage area.--103 square miles.

Records available.--January 1931 to September 1950.

Average discharge. 19 years, 20.3 second-feet.

Extremes.--Maximum discharge during year, 674 second-feet Feb. 6 (gage height, 7.80 feet); 

 ho flow Oct. 12-15, Oct. 29 to Nov. 8.

1931-50: Maximum discharge, 12,200 second-feet Jan. 22, 1943 (gage height, 18.31 

feet); no flow for periods In some years.

Remarks.--Flow regulated by many small recreational dams.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1949 to September 1950

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.

0.01 

.01 

.01 

.01 

.02

.02 

.02 

.01 

.01 

.01

.01 

0 

0 

0 

0

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

0 

0 

0

Nov.

0 

0 

0 

0 

0

0 

0 

0

.1

.6

.03 

.02 

.02 

.02 

.02

.02 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.02 

.02 

.02 

.02

.02

Dec.

0.02 

.02 

.02 

.02 

.02

.02 

.02 

1.0 

.3 

.2

.05 

.05 

.04 

.04 

.03

.03 

.03 

1.0 

.3 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Jan.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

1.5 

.2 

.2

.8 

1.0 

1.0 

.9 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6

.7 

.7 

.7

.8 

.8 

1.2 

1.3 

i:0 

.8

Feb.

0.8 

.8 

.8 

.8 

1.0

64

3.5 

2.4 

2.0 

2.0

2.0 

1.8 

1.8 

1.8 

1.8

1.8 

1.6 

1.5 

1.5 

1.4

1.4 

1.3 

1.2 

1.2 

1.2

1.2 

1.2 

1.2

Month

Oo to 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ftry

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

ter year 1949-50 .......................

Mar.

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.0 

1.0 

1.0 

1.0

.9 

.9 

.9 

.6 

.8

.6

.e

.8 

.8 

.8

.9 

.9

1.0 

2.2 

1.6

1.3 

1.0 

.9 

.9 

.8 

.8

Apr.

0.

1.3 

2.7 

1.6

1.3 

1.0 

1.0 

1.0 

1.0

.9 

.9 

.9 

1.0

1.2

1.2 

1.2 

1.2 

1.0

.9

.9 

.9 

.9 

.9 

.9

Secondfoot-days

0.27 

1.02 

4.41

44.93

19.1 

150.0 

31.8 

30.7 

22.9 

10.7 

7.5 

3.10 

4.4

240.9

May

0.9 

.9 

1.0

1.2 

1.3

1.3 

1.2 

.9

.8 

.8

.7 

.7 

.6 

.6 

.7

.8 

.8 

.6 

.7 

.7

.6 

.6 

.6 

.6 

.5

.5 

.4 

.5 

.6

.4 

.4

Maximum

0.02 

.6 

1.0

1.0

1.5 

64 

2.2 

2.7 

1.3 

.6 

.5 

.2 

.3

64

June

0.5 

.5 

.4

.4 

.4

.4 

.4 

.5 

.6 

.6

.6 

.5 

.5 

.4 

.4

.4

.3 

.2 

.2 

.2

.3 

..3 

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

July

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.3

.4 

.4

.4

.5 

.4 

.4 

.4

.3 

.2 

.2 

.2

.2

.2 

.2 

.1 

.1 

.1 

.1

Aug.

0.1

.04 

.04 

.06 

.04

.04 

.04 

.03 

.02 

.03

.03 

.03 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.2 

.2

.2 

.2 

.2

:l.1

Sept.

0.2 

.2 

.2 

.1 

.2

.2 

.3 

.2 

.2 

.2

.2 

.2 

.1, 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2

.2 

.1 

-1 

.1

.1 

.1 

.1 

.1

.1

Mini- I «"« aSee?

0 0.009 0.5 

0 .034 2.0 

.02 .142 8.7

0 .123 89

.1 .62 38 

.8 3.75 208 

.8 1.03 63 

.7 1.02 61 

.4 .74 45 

.2 .36 21 

.1 .24 15 

.02 .100 6.1 

.1 '.15 8.7

0 .66 477^
SANTA CLARA RIVER BASIN 117

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. Datum of 

gage is 1,038.24 feet above mean sea level (levels by Los Angeles County Flood Control 

District).

Drainage area.--355 square miles.

Records available.--October 1929 to September 1950.

Average discharge.--21 years, 16.4 second-feet.

Extremes. Maximum discharge during year, 8.5 second-feet Feb. 6 (gage height, 6.22 feet); 

minimum daily 0.1 second-foot May 1, Aug. 26, 27, Sept. 3, 8, 21, 22, 24-27.

1929-50: Maximum discharge, 24,000 second-feet Mar. 2, 1938; no flow at times in 

each year 1933, 1935-38.

Remarks.--Flow regulated by Bouquet Canyon and Dry Canyon reservoirs. Some flow diverted 

above station for irrigation near Lang. At times water is released to river above 

station from Los Angeles City Aqueduct blowoff at river crossing.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.1 

2.8 

4.3 

3.4 

.9

.9 

.5 

.5 

.5 

.5

.5 

.4 

.5 

.9 

2.1

2.2

1.4 

.4 

.4 

.3

.3 

.4 

.4 

.4 

1.1

2.7 

1.6 

.5 

.5 

.5 

.7

Nov.

0.7 

.7 

.7 

.5 

1.1

.9 

1.2 

.3 

.4 

1.0

.5 

.5

.7 

.5 

.7

.8 

.8 

1.4 

1.4

1.5

1.4 

1.5

2.0 

1.2 

1-2

.5 

.7 

.8 

.9 

.8

Dec.

0.8 

.8 

.7 

.5 

.5

.7 

1.2 

1.6 

.5 

.7

.7 

.8 

.8 

.9 

.9

1.2 

1.1 

2.8 

3.4 

1.2

1.2 

1.2 

1.2 

1.4 

1.2

1.5 

1.4 

1.4 

1.2 

1.4 

1.2

Jan.

1.4 

1.2 

1.2 

1.2 

1.4

2.1 

2.1 

2.3 

1.1 

1.1

2.6 

3.6 

2.8 

2.2 

2.2

2.1 

2.0 

2.1 

2.0 

2.2

2.1 

2.0 

2.0 

1.8 

1.8

1.8 

2.0 

2.1 

2.1 

2.1 

2.1

Feb.

2.0 

2.0 

2.0 

2.0 

2.6

5.2 

3.0 

2.0 

2.0 

2.0

2.0 

2.0 

2.0 

1.4 

1.2

2.1 

2.3 

2.3 

2.1 

2.1

2.O 

2.0 

2.0 

2.1 

2.4

2.4 

2.1 

2.1

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-5O .......................

Mar.

2.4 

2.4 

2.4 

2.4

3.4 

4.0 

2.8 

2.2 

3.0

3.2 

3.2 

3.4 

3.0 

2.7

2.2 

2.2 

2.1 

2.1 

2.O

2.0 . 

1.9 

1.8 

1.8 

2.2

2.1 

2.0 

1.8 

2.0 

1.8 

1.8

Apr.

1.8 

2.0 

1.2 

1.2

1.1 

2.3 

3.0 

2.8

1.1

1.1 

1.2 

1.1 

.5 

1.5

1.8 

1.4 

.5 

.5 

l.b

1.5 

1.8 

1.8 

1.8 

1.6

2.0 

1.2 

.8

Secondfoot-days

33.6 

27.3 

34.1

602.8

6O.8 

61.4 

74.7 

43.4 

37.8 

31.7 

14.9 

11.4 

15.6

446.7

May

1.2 

1.6 

.7 

.7

1.6 

1.6 

1.4 

.9 

.8

.7 

.7 

.8 

.8 

.8

2.2 

2.1 

1.8 

1.8 

1.8

1.7 

1.6 

1.6 

1.5 

1.4

1.4

1.5 

1.1 

.3 

.1 

.5

Maximum

4.3 

2.0 

2.8

4.9

_ ___ . 

3.6 

5.2 

4.O 

3.0 

2.2 

2.1 

2.1 

2.4 

2.0

5.2

June

0.7 

1.1 

.5 

.7

1.8 

1.4 

1.3 

1.2 

1.1

1.0 

1.0 

.9 

.8 

.8

1.1 

1.1 

1.5 

.8 

1.1

1.5 

1.8 

1.1 

.9 

.4

' .7 

.5 

.5 

2.1

19

July

1.4 

.5 

1.4 

2.1 

.8

.4 

.4 

.4 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.2 

.2

Aug.

0.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.4 

.9

.5 

.4 

.3 

.3 

.1

.1 

.1 

.3 

.4 

2.4 

1.6

Sept.

0.3 

.3 

.1 

.3 

2.0

1.6 

.4 

.1 

.2 

.4

.4 

.4 

.4 

.4 

.4

.5 

.8 

.8 

.9 

1.4

.1 

.1 

.3 

.1 

.1

.1 

.1 

.3 

1.1 

1.2

; 1

0.3 1.08 67 

.3 .91 54 

.5 1.10 68

.3 1.65 1,200

1.1 1.96 121 

1.2 2.19 122 

1.8 . 2.41 148 

.5 '' 1.45 86 

.1 1.22 75 

.4 1.O6 63 

.2 .48 30 

.1 .37 23 

.1 .52 31

.1 1.22 888

307481 O - 52 - 9
118 SANTA CLARA RIVER BASIN

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, Venture 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 1950. October 192'/ to September 1934 at site 1.5 miles downstream at Piru.

Average discharge.--23 years (1927-50), 61.3 second-feet.

Extremes.--Maximum discharge during year, 472 second-feet Feb. 6 (gage height, 2.92 feet); 

minimum daily, 0.5 second-foot Oct. 1.

1911-13, 1927-50: Maximum discharge, 35,600 second-feet Mar. 2, 1938, by slope-area 

method; no flow during parts of some years.

Remarks.--Records good. Doheny ditch diverts water for irrigation above station, and Piru 

Water Co.'a ditch diverts below.

Cooperation.--Ventura County Water Survey furnished three discharge measurements.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7

e

9

10 

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.5 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7

1.0

1.0 

1.0 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1,2 

1.2 

1.2 

1.2

Nov.

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

2.2 

5.5

5.0 

3.4 

3.0 

2.6 

2.6

1.9 

2.2 

2.6 

2.6 

2.6

2.6 

2.2 

2.2 

2.2 

2.2

2.6 

2.6 

2.6 

2.6 

2.2

Dec.

1.9 

1.9 

2.2 

2.2 

2.6

2.6 

4.2 

80 

60 

27

13 

8.5 

6.0 

5.5 

44.6

4.2

4.2 

62 

38 

14

13 

13 

12 

11 

10

10 

10 

9.5 

9.5 

9.5 

9.5

Jan.

9.5 

9.0 

9.5 

10 

9.0

9.0 

9.0 

25 

73 

27

54 

52 

25 

20 

19

17 

15 

14 

18 

23

21 

20 

24

29

25

22 

18 

19 

22 

20 

18

Feb.

17 

17 

17 

17

19

181 

235 

83 

48 

44

42 

41 

38 

36 

32

29

28 

26 

25 

25

24 

23 

22 

19 

16

15 

14 

14

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

h. ......................................

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

ter year 1949-50 .......................

Mar.

 14 

16 

16 

16 

17

17 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

14 

13 

13

13 

12 

12 

30

40

28 

23 

19 

17 

16 

14

Apr.

14 

13 

11 

10 

10

9.5 

9.5 

17 

68 

32

25 

20 

16 

16 

15

12 

12 

10 

9.3 

9.0

5.3 

8.0 

11 

9.5 

9.5

10 

13 

10 

7.8 

9.0

Secondfoot-days

29.4 

69.8 

461.6

3,115.9

685.0 

1,147 

536 

431.4 

182.7 

32.0 

29.2 

28.8 

30.8

3,663;7

Hay

9.5 

10 

9.5 

11 

9.5

9.5

8.0 

5.8 

5.0 

5.0

5.5 

5.5 

6.0 

6.0 

5.7

5.0 

5.0 

5.0 

5.0 

5.0

4.6 

4.2 

4.2 

4.2 

4.2

4.2 

4.2 

4.2 

4.2 

3.8 

4.2

Maximum

1.2 

5.5 

80

111

73 

235 

40 

68 

11 

2.2 

1.2 

1.2 

1.9

235

June

2.2 

1.9 

1.5 

1.0

2.2

1.2 

1.5 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.2

1.0 

.7 

.7 

.7 

.7

i .7 

.7 

.7 

.7 

.7

July

1.0 

1.0 

1.0 

1.2 

1.0

.0 

.0 

.7 

.0 

.2

.0 

.0 

1.0 

1.0 

1.0

.7 

.7 

1.0 

l.-O 

.7

.7 .7- 

.7 

.7 

1.0

1.0 

1.2 

1.0 

1.0 

1.0 

1.0

Aug.

1.0 

1.0 

.7 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

.7 

.7

1.0 

1.0 

1.0

.7 

.7 

.7 

.7 

.7

.0 

.0 

.0 

.0 

.0

.0 

.0 

.2 

1.0 

1.0 

1.0

Minimum Mean

0.5 0.95 

1.2 2.33 

1.9 14.9

.5 8.54

9.0 22.1 

14 41.0 

12 17.3 

5.3 14.4 

3.8 5.89 

.7 1.07 

.7 .94 

.7 .93 

.7 1.03

.5 10.0

Sept.

1.2 

1.2 

1.0 

1.0 

1.0

1.0 

1.2 

1.9 

.2 

.2

.2 

.5 

.2 

1.0 

1.0

1.0 

1.0 

.7 

.7 

.7

.7 

.7 

.7 

.7 

1.0

1.0 

.7 

1.0 

1.2 

1.2

Runoff in 

acre-feet

58 

138 

916

6,180

1,360 

2,280 

1,060 

856 

362 

63 

58 

57 

61

7,270

Peak discharge (base, 850 sec.-ft.). No peak above base.
SANTA CLARA RIVER BASIN 119

Hopper Creek near Piru, Calif.

Location.--Water-stage recorder, lat. 34°23 1 55", long. 118°49'40", on south line of NWij sec. 

25, T. 4 N., R. 19 ¥., at highway bridge 2 miles southwest of Piru.

Drainage area. 23.0 square miles.

Records available.--October 1930 to September 1932, October 1933 to September 1936, October 

1937 to September 1950.

Average discharge.--18 years, 5.55 second-feet.

Extremes. --Maximum discharge during year, 1,000 second-feet Feb. 6; no flow for several 

months of year.

1930-32, 1933-36, 1937-50: 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 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

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

o

0 

0

0 

0 

0 

0 

27

1.4 

.4 

O 

O 

O

0 

0 

0 

0 

0

0

o 

o 

o 

o

0

o 

o

0

o

Dec.

0 

0 

0

o

0

0 

.2 

57 

9 

1.7

1.1 

.9 

.7 

.6 

.3

.3 

.4 

48 

10 

2.7

1.6 

1.3 

1.2 

1.2 

1.0

.9 

.8 

.7 

.7 

.7 

.7

Jan.

0.

37* 

17 

3.0

24 

12 

4.4 

2.8 

2.8

2.2

2.1 

3.6 

2.4 

2.0

1.8 

1.6 

1.4 

1.2 

1.2

1.0 

1.0 

1.2 

1.2 

1.0 

1.0

Feb.

O.9 

.9 

.9 

.9 

1.0

1O1 

8.4 

5.1 

4.0 

4.8

4.2 

3.0 

2.4 

2.2 

2.0

2.O 

1.8 

1.6 

1.4 

1.2

1.2 

1.0 

1.0 

1.0 

.9

.9 

1.0 

.9

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 194£

amber

ter year 1949-50 .......................

Mar.

0.9 

.9 

.8 

.7 

.8

.8 

.8 

.9 

.9 

.9

.9 

.7 

.6- 

.6 

.7

.7 

.6 

.4 

.1 

.1

.1 

.1 

.1 

6.1 

5.9

1.8 

1.2 

1.2 

.8 

.8 

.7

Apr.

O.6 

.4 

.4 

.3 

.4

.4 

.2 

3.1 

6.3 

1.2

.7 

.8 

.6 

.5 

.3

.2

.2 

.2 

.1 

0

0 

.2 

.3 

.1 

.1

.2 

.2 

.2 

.1 

.1

Secondfoot-days

0 

28.8 

143.7

338.0

133.8 

157.6 

32.6 

18.4 

1.2 

O 

0 

0

o

516.1

May

0.1 

.1 

.1 

.1 

.1

0 

0 

0

0 

0

0

.1

.2

.2 

.1

.1

0 

0

o 

o

0

o 

o

0 

0

Q

0 

0 

0

o

0

Maximum

0 

27 

57

57

37 

1O1 

6.1 

6.3 

.2 

O 

O 

O 

O

101

June July

Minimum

0 

0

o

o

.7 

.9 

.1 

0 

0 

0

o

0

o

0

Aug.

Mean

0 

.96 

4.64

.93

4.32 

5.63 

1.05 

.61 

.04 

0 

0 

0 

0

1.41

Sept.

Runoff in 

acre-feet

0 

57 

285

670

265

313 

65 

36 

2.4 

0 

0 

0 

. O

1,020
120 SANTA CLARA RIVER BASIN

Sespe Creek near Wheeler Springs, Calif.

Location. Water-stage recorder, lat. 34 C 34'40", long. 119°15'25", in SW^SWir sec. 30, T. 

b N., R. 22 W., at Sespe Gorge, 1.6 miles upstream from Tule Creek, 5 miles upstream 

from Cold Springs dam site, and 5 miles north northeast of Wheeler Springs. Datum of 

gage is 3,500.65 feet above mean sea level (Ventura County Survey).

Drainage area.--50 square miles.

Records available. January to July 1948 (discharge measurements only), July 1948 to Septemoer I95U.

Extremes. Maximum discharge during year, 53 second-feet Feb. 6 (gage height, 3.56 feet); 

minimum daily, 0.01 second-foot Aug. 27 to Sept. 5.

1948-50: Maximum discharge, that of Feb. 6, 1950; minimum daily, that of Aug. 27 

to Sept. 5, 1950.

Remarks. Records good. No diversion or regulation above station.

Cooperation.--Gage-height record and 32 discharge measurements furnished by Ventura County 

Water Survey.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8

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.07 

.07 

.07 

.07 

.07

.08 

.08 

.09 

.09 

.09

.07 

.08 

.08 

.08

.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 

.2 

.2 

.2 

fl.6

.5 

.4 

.4 

.4 

.4

.4 

.4 

.3

.3 

.3

.3 

.3 

. .3 

.3 

.3

.3 

.3 

.3 

.3 

.3

Dec.

0.3 

.3 

.3 

.3 

.3

.3 

1.0 

16 

3.4

1.4

1.1 

1.0 

1.0

1.1 

1.0

1.0

1.0 

1.5 

1.2 

.9

1.0 

1.1 

1.2 

1.1 

1.1

1.0 

1.0 

1.0 

.9 

.9 

.9

Jan.

0.9 

.8 

.8 

.8 

.8

.8 

.9 

1.7 

1.5 

1.1

1.6 

1.4 

1.3 

1.4 

1.3

1.5

2.8 

2.0 

1.8

1.8 

1.8 

1.6 

1.6 

1.6

1.5 

1.4 

1.6 

1.5 

1.4 

1.3

Feb.

1.4 

1.4 

1.4 

1.4 

1.9

31 

8.6 

4.5 

3.2

3.9

3.6 

2.8 

2.5 

£.3 

2.3

2.1

2.0 

2.0 

2.0

1.8 

1.8 

2.0 

2.0 

2.0

1.8 

1.8 

1.8

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

Lendar year 1949 

ary

ter year 1949-50 .......................

Peak discharge (base, 15 sec. -ft.). Dec.

Mar.

1.7 

1.6 

1.4 

1.6 

1.7

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.7 

1.7 

1.7 

1.6

1.4

1.4 

1.4 

1.4

1.6 

1.6 

1.7 

3.2 

3.O

2.5 

2.1 

1.8 

1.7 

1.6 

1.6

Apr.

1.4 

1.4 

1.4 

1,4- 

1.4

1.3 

1.4 

4.9 

3.4 

3.0

2.8 

2.1 

2.1 

2.0 

2.0

1.8

1.7

1.6 

1.6

1.6 

1.4 

1.4 

1.4 

1.3

1.3 

1.3

1.3 

1.3 

1.2

Secondfoot-days

2.79 

9.6 

45.6

282.46

46.3 

97.4 

54.9 

53.9 

 28.8 

13.3 

3.46 

.73 

1.48

358.26

. May

1.2

1.3 

1.4

1.4 

1.3

1.2

1.3 

1.2

1.1 

1.0

1.0 1.1 1.1

1.0 

1.0

1.0

.9 

.8 

.7

.6 

.6 

.7 

.8 

.6

.6

'.6 

.6 

.6 

.5

Maximum

0.1 

1.6 

16 

16

4.O 

31 

3.2 

4.9 

1.4 

.6 

.3 

.05 

.1

31

8 (9 a.m.) 39 sec. -ft. j

June

O.4 

.4 

.4 

.4 

.4

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.5 

.4 

.4

.3 

.3 

.4 

.4

.3

.3

: .2 

.2 

.2 

.2

July

0.2 

.1 

.2 

.1

.1

.1 

.1 

.2 

.2

.3

.2 

.2

.1 

.1 

.1

.08 

.08 

.08 

.1 

.1

.1 

.08 

.08 

.07 

.07

.07 

.05 

.05 

.05 

.05 

.05

Aug.

O.OS 

.04 

.04 

.03 

.03

.04 

.04 

.04 

.04 

.03

.02 

.03 

.03 

.02 

.02

.02 

.02 

.02 

.02

.01

.Ol 

.01 

.01 

.02 

.02

.02 

.01 

.01 

.01 

.01 

.01

Minimum Mean

O.07 0.090 

.1 .32 

.3 1.47

.04 .774

.8 1.49 

1.4 3.48 

1.4 1.77 

 1.2 1.80 

.5 .93 

.2 .44 

.05 .112 

.01 .024 

. Ol . 049

.01 .982

Sept.

O.OI 

.01 

.01 

.01 

.01

.02 

.05 

.05 

.05 

.05

.04 

.04 

.03 

.03 

.03

.07 

.1 

.1 

.1 

.08

.08 

.08 

.08 

.08 

.07

.05 

.04 

.04 

.03 

.04

Runoff in 

acre -feet

5.5 

19 

90

561

92 

193 

109 

107 

57 

26 

6.9 

1.4 

2.9

710

Feb. 6 (6 a.m.) 53 see. -ft.

f CTcmputed on basis or partly estimated gage-height- record.
SANTA CLARA RIVER BASIN 121

Sespe Creek near Pillmore, Calif.

Location. Water-stage recorder, lat. 34°26'55", long. 118°55'35", in NEij sec. 12, T. 4 N., 

K. 20 W., 0.1 mile downstream from Little Sespe Creek and 3.5 miles north of Pillmore. 

Altitude of gage, about 590 feet.

Drainage area.--254 square miles.

Records available. November 1934 to September 1950. September 1911 to September 1913 and 

October 1927 to November 1934 at site at Sespe, 3 miles downstream.

Average-discharge.--23 years (1927-50), 99.6 second-feet.

Extremes.--Maximum discharge during year, 3,000 second-feet Feb. 6, computed on basis of 

records for Santa Paula Creek near Santa Paula; minimum daily, 0.05 second-foot Oct. 1, 

2, 13.

1927-50: Maximum discharge, 56,000 second-feet Mar. 2, 1938, by slope-area method; 

no flow except slight return seepage from Flllmore Canal during the lowest part of the 

irrigation season in most years.

Remarks.--Records good except those for Feb. 6, which is fair. Fillmore Irrigation Co.'s 

canal diverts water from Sespe Creek 1 mile above this station (see following page).

Revisions (water years).--W 901: 1938-39.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1

3

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

0.05 

.05 

.07 

.07 

.07

.07 

.07 

.07 

.07 

.07

.07 

.07 

.05 

.07 

.07

.07 

.07 

.07 

.07 

.07

.07 

.07 

.07 

.07 

.07

.07 

.07 

.07 

.07 

.07 

.07

Nov.

0.07 

.07 

.07 

.07 

.07

.07 

.08 

.08 

.3 

105

7.7 

3.4 

2.4 

2.1 

1.9

1.9 

1.8 

1.4 

1.0 

1.0

.9 

1.0 

.6 

.5 

.4

.4 

.4 

.4 

.3 

.3

Dec.

0.2 

.2 

.2 

.2 

.2

.1

2.0 

341 

54 

14

11 

10 

8.3 

7.3 

7.3.

6.8 

7.8 

144 

56 

28

21 

17 

16 

14 

13

13 

12 

11 

11 

11 

11

Jan.

11 

11 

11 

11 

10

10 

9.4 

130 

94 

44

205 

146 

92 

63 

54

49 

43 

43 

65 

59

54 

58 

71 

58 

43

31 

26 

25 

26 

25 

21

Feb.

19 

18 

17 

16 

34

f 1,230 

326

153 

101 

104

114 

94 

74 

65 

61

58 

52 

49 

47 

46

43 

40 

37 

31 

30

30 

30 

30

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

WAV

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

ter year 1949-50 .......................

Mar.

30 

30 

30 

28 

27

27 

23 

22 

22 

22

22 

22

21 

21 

20

20 

20 

19 

17 

16

17 

15 

13 

28 

42

33 

26 

23 

21

19 

19

Apr.

18 

18 

13 

11 

10

10 

11 

81 

74 

50

34 

34 

38 

36 

31

23

19 

17 

16 

15

13 

13

13 

13 

13

11 

11 

10 

9.4 

11

Secondfoot-days

2.11 

135.68 

848.6

3,925.71

1,598.4 

2,949 

715 

676.4 

69.0 

10.9 

6.7 

5.7 

4.4

7,021.39

May

8.8 

7.3 

6.8 

6.8 

6.3

5.1 

5.1 

3.4 

1.9 

1.4

1.2 

1.0 

1.0 

1.0 

.9

1.0 

1.0 

.9 

" .7.7

.7

, '

*

.6 

.6 

.6 

.6 

.5 

.5

Maximum

0.07 

105 

341

376

205 

1,230 

42 

81 

8.8 

.6 

.4 

.2 

.3

1,230

June

0.6 

.6 

.6 

.6

.5

.5 

.4 

.4 

.4 

.3

.3

.3 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.3 

.2

July

0.2 

.2 

.2 

.2 

.2

.3 

.3 

.2 

.3

.4

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 .2' 

.2

Minimum

0.05 

.07

.1

.01

9.4 

16 

13 

9.4 

.5 

.2 

.2 

.1 

.1

.05

Aug.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

.1 

.2 

.2 

.2

.2 

.2 

.2 

,1

.1

.1

Mean

0.068 

4.52 

27.4

10.8

51.6 

105 

23.1 

22.5 

2.23 

.36 

.22 

.18 

.15

19.2

Sept.

0.1

.1 

.1 

.1 

.1

.1

.2

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2

.2 

.3 

.2 

.1 

.1

.1 

.1 

.1 

.2 

.2

.2 

.2 

.2 

.2 

.2

Runoff in 

acre -feet

4.2 

269 

1,680

7,780

3,170 

5,850 

1,420 

1,340 

137 

22 

13 

11 

8.7

13,920

Peak discharge (base, 1,300 sec. -ft.). Feb. .6 (about 5 a.m.) 3,000 sec. -ft.

f Fragmentary gage-height record.
122 SANTA CLARA RIVER BASIN

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

Location. Water-stage recorder and Parshall flume, lat. 34 0 27'15", long. 118°55'35", in 

 SE^: sec. 1, T. 4 N., R. 20 W., 4 miles north of Fillmore. Altitude of gage, about 660 

feet.

Records available.--October 1927 to September 1932 (monthly discharge); October 1935 to 

September 1939 (yearly discharge); October 1939 to March 1940 (monthly discharge); 

April 1940 to September 1950.

Average discharge.--20 years (1927-32, 1935-50), 5.75 second-feet.

Extremes. Maximum daily discharge during year, 12 second-feet May 8-20; minimum daily, 

1.3 second-feet Jan. 8.

1940-50: Maximum daily discharge, 15 second-feet for several days in occa'sional 

years; no flow at times during 1941-43.

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

Canal diverts water from Sespe Creek in SE^ sec. 1, T. 4 N., R. 20 W., 1 mile above 

station on Sespe Creek near Fillmore (see preceding page).

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.4 

2.4 

2.5 

2.6 

2.7

2.8 

2.9 

2.9 

2.8 

2.8

2.8 

2.8 

2.7 

2.9 

2.9

3.0 

3.1 

3.2 

3.2 

3.2

3.2 

3.2 

3.1 

3.0 

3.0

2.9 

2.9 

2.8 

2.7 

2.7 

2.8

Nov.

2.6 

2.5 

2.4 

2.4 

2.5

2.5 

2.7 

2.9 

3.8 

3.1

2.3 

2.0 

2.0 

2.0 

1..8

1.6 

1.6 

2.3 

2.8 

2.9

2.9 

3.0 

3.5 

3.7 

3.7

3.8 

3.8 

3.8 

3.8 

3.8

Dec.

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

4.4 

3.6 

2.4 

1.9

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.9 

1.4 

1.6 

2.1

2.0 

1.8 

1.7 

1.8 

1.8

1.6 

1.6 

1.8 

1.8 

1.8 

1.8

Jan.

1.8 

1.7 

1.5 

1.6 

1.6

1.5 

1.6 

1.3 

4.0 

3.5

3.0 

2.8 

2.8 

2.8 

2.8

2.7 

2.7 

2.7 

2.8 

2.8

2.7 

2.7 

2.7 

2.8 

2.7

3.5 

3.9 

3.1 

2.6 

2.5 

2.5

Feb.

2.6 

2.5 

2.4 

2.4 

2.5

1.6 

1.6 

1.9 

1.8 

1.8

1.9 

1.8 

1.8 

1.9 

2.0

1.9 

1.8 

1.7 

1.7 

2.0

2.1 

2.0 

1.9 

1.8 

1.7

1.9

1.9 

1.9

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

wa

ber. ....................................

lendar year 194S

ter year 1949-50 .......................

Mar.

1.9 

1.8 

1.8 

1.8 

1.7

2.7 

4.1 

4.0 

3.9 

3.5

3.3 

3.0 

3.0 

3.4 

3.6

3.0 

3.1 

4.6 

7.5 

5.4

3.8 

8.0 

, 9.2 

8.5 

2.9

3.3 

3.5 

3.9 

4.3 

4.6 

4.8

Apr.

4.9 

4.3 

7.9 

9.7 

9.7

9.7 

8.9 

7.2 

3.6 

4.4

5.4 

5.5 

5.7 

5.7 

5.5

7.7 

9.0 

8.7 

8.5 

8.8

8.9 

8.9 

8.9 

8.8 

8.7

9.4 

9.7 

9.7 

9.4 

8.2

Secondfoot -days

88.9 

84.5 

72.4

1,392.7

79.7 

54.8 

123.9 

231.4 

331.0 

160.9 

36.0 

78.3 

93.2

1,495.0

May

9.1 

10 

10 

10 

9.8

9.5 

9.3 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

11 

11 

10 

11 

10

9.9 

9.8 

9.4 

8.9 

8.4 

7.9

Maximum

3.2 

3.8 

4.4

14

4.0 

2.6 

9.2 

9.7 

12 

7.7 

3.8 

3.2 

4.7

12

June

7.7 

7.6 

7.2 

6.9 

6.7

6.9 

6.9 

6.4 

5.9 

5.7

5.6 

5.6 

5.5 

5.5 

5.4

5.4 

5.3 

5.1 

4.8 

4.6

4.5 

4.3 

4.3 

4.5 

4.4

4.2 

3.9 

3.5 

3.4 

3.2

July

3.2 

3.2 

3.2 

3.2 

3.2

3.7 

3.6 

3.4 

3.4 

3.8

3.8 

3.5 

3.2 

3.2 

3.1

2.9 

2.9 

3.0 2.9- 

2.8

2.8 

2.8 

2.7 

2.7 

2.7

2.8 

2.8 

2.8 

2.8 

2.9 

3.0

Minimum

2.4 

1.6 

1.4

1.1

1.3 

1.6 

1.7 

3.6 

7.9 

3* 

2.7 

2.2 

2.2

1.3

Aug.

3.2 

3.0 

3.0 

3.0 

2.9

2.6 

2.5 

2.5 

2.4 

2.3

2.3 

2.3 

2.4 

2.5 2.4

2.3 

2.3 

2.3 

2.2 

2.3

2.4 

2.4 

2.5 

2.5 

2.5

2.6 

2.6 

2.6 

 2.5 

2.5 

2.5

Mean

2.87 

2.82 

2.34

3.82

2.57 

1.96 

4.00 

7.71 

10.7 

5.36 

3.10 

2.53 

3.11

4.10

Sept.

2.5 

2.5 

2.4 

2.2 

2.4

2.7 

3.2 

3.0 

2.9 

2.9

3.0 

3.1 

3.2 

3.2 

3.2

3.4 

4.7 

4.5 

a4.1 

a3.8

a3.5 

a3.2 

a2.9 

a2.8 

a2.9

a3.0 

a3.0 

a3.0 

a3.0 

a3.0

Runoff In 

acre-feet

176 

168 

144

2,760

158 

109 

246 

459

657 

319 

190 

155 

185

2,970

a No gage-height record; discharge computed on basis of recorded range In stage and dally comparison with discharge of Sespe Creek near Plllmore.
SANTA CLARA RIVER BASIN 

Santa Paula Creek near Santa Paula, Calif.

123

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 and 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 1950. April 1912 to September 1913 at site 

a.5 miles upstream. October 1927 to February 1931 at site 500 feet downstream, below 

diversion of Santa Paula Water Works.

Average discharge.--23 years (1927-50), 19.7 second-feet.

Extremes.--Maximum discharge during year, 660 second-feet Feb. 6 (gage height, 3.70 feet,); 

no 1'low Nov. 4, 5.

1927-50: Maximum discharge, 13,500 second-feet Mar. 2, 1938 (gage height, 10.56 

feet); by slope-area method; no flow Sept. 11, Nov. 4, 5, 1949.

Remarks. Records fair. Diversions for irrigation above station and for municipal use 

below station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

.8 

1.0 

1.0 

1.1

1.3 

1.4 

.5 

.3 

.2

.1 

.4 

.2 

.3 

1.0

1.0 

1.1 

1.1 

1.0 

1.0

1.1 

1.0 

1.0 

1.0 

1.0

.8 

.8 

.8 

.7 

.7 

.3

Nov.

0.2 

.2 

.3 

0 

0

.1 

.1 

.1 

1.2 

23

6.3 

4.0 

2.7 

2.2 

2.2

2.5 

2.2 

2.2 

2.2 

2.2

2.2 

2.0 

2.0 

2.0 

2.2

2.0 

1.6 

2.0 

2.0 

2.0

Dec.

1.8 

1.8 

1.4 

1.4 

1.6

1.6 

2.5 

37 

15 

8.2

5.9 

2.2 

.6 

.5 

.4

.3 

.2 

10 

8.6 

5.5

3.4 

1.8 

1.8 

2.0 

2.0

2.2 

2.2 

2.7 

2.7 

3.0 

3.2

Jan.

3.2 

3.2 

3.2 

3.4 

3.4

3.2 

3.2 

9.4 

6.3 

3.7

20

17 

13 

12 

11

6.9 

4.6 

5.9 

6.5 

6.8

7.2 

8.2 

8.2 

8.2 

7.6

6.8 

6.8 

7.6 

7.2 

7.2 

7.2

Feb.

6.8 

7.2 

7.2 

6.8 

8.7

206 

57 

37 

31 

36

34 

30

21 

16 

15

14 

13 

12 

11 

11

10 

10 

8.6 

7.6 

7.2

6.8 

7.2 

7.6

Month

Octo 

Move

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Hav

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

ter year 1949-50. ......................

Mar.

7.6 

7.9 

7.9 

7.9 

8.2

7.9 

6.8 

6.5 

5.9 

5.2

4.9 

5.2 

4.9 

4.6 

4.6

4.3 

4.3 

4.3 

4.0 

4.0

4.3 

4.9 

4.6 

12 

9.9

8.2 

8.2 

7.6 

7.6 

6.8 

6.2

Apr.

6.2 

6.2 

5.2 

5.2 

5.2

4.9 

5.2 

13 

9.6 

7.6

6.5 

6.5 

6.2 

6.2 

 5.2

5.2 

5.5 

5.9 

5.9 

5.9

5.9 

6.5 

6.5 

6.2 

5.9

5.9 

5.9 

5.9 

5.9 

5.5

Secondfoot -days

24.8 

73.9 

133.5

1,092.2

228.1 

645.7 

197.2 

187.4 

101.6 

73.6 

39.6 

26.5 

29.1

1,761.0

May

5.2 

4.9 

4.3 

4.0 

4.0

4.0 

4.0 

3.7 

3.2 

3.0

3.0 

3.2 

3.2 

3.2 

3.2

3.7 

3.7 

3.4 

3.4 

3.2

3.2 

2.7 

2.7 

3.0 

3.0

2.7 

1.8 

1.8 

1.8 

2.7 

2.7

Maximum

1.4 

23 

37

52

20 

206 

12 

13 

5.2 

4.0 

1.8 

1.1 

2.0

206

June

3.2 

3.2 

4.0 

3.0 

2.2

2.5 

2.0 

1.8 

1.6 

1.6

1.8 

2.7

3.0 

2.7

3.0 

3.0 

2.7 

3.0 

2.5

2.0 

2.2 

2.7 

2.7 

3.0

2.2 

2.0

1.8 

1.4 

1.4

July

1.6 

1.8 

1.8 

1.8 

1.6

1.8 

1.8 

1.4 

1.8 

1.3

1.6 

1.3

1.4 

1.6

1.6 

1.6 

1.6 

1.6 

1.4

1.4 

1.3 

1.4 

.8 

.6

.6 

.5 

.1 

.2 

.4 

.5

Minimum

0.1 

0 

.2

0

3.2 

6.8 

4.0 

4.9 

1.8 

1.4 

.1 

.2 

.2

0

Aug.

0.4 

.4 

.4 

.2 

.2

.2 

.4

.7 

.8 

.7

.8 

1.0

1.1 

1.1

1.0 

1.1 

1.0 

1.0

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.0 

1.0 

1.0

Mean

0.80 

2.46 

4.31

2.99

7.36 

23.1 

6.36 

6.25 

3.28 

2.45 

1.28 

.85 

.97

4.82

Sept.

0.8 

.7 

.7 

.6 

.7

.8 

1.1 

1.1 

1.1 

1.1

1.1 

1.1

1.0

1.1

1.3 

2.0 

.6 

.2 

.4

1.1 

1.4 

1.4 

1.6 

.8

1.4 

.4 

.5 

1.0 

.9

Runoff in 

acre- feet

49 

147 

265

2,170

452 

1,280 

391 

372 

202 

146 

79 

53 

58

3,490

Peak discharge (base, 200 sec.-ft.).--Feb. 6 (3:10 a.m.), 660 sec.-ft.
124 VENTURA RIVER BASIN

Matilija Creek above reservoir, near Matilija, Calif.

Location.--Water-stage recorder, lat. 34°29 I 40", long. 119°19 I 45", in SE^SW^ sec. 19, T. 

b d., R. 23 W., 2 miles upstream from Matilija Dam and 1.7 miles west northwest of 

Matilija. Datum of gage is 1,160.20 feet above mean sea level (Ventura County Survey).

Drainage area.--51 square miles.

Records available.--May 1948 to September 1950.

Extremes.--Maximum discharge during year, 155 second-feet Feb. 6 (gage height, 3.94 feet); 

minimum daily, 0.7 second-foot Nov. 5, 6, Aug. 31 to Sept. 3.

1948-50: Maximum discharge, that of Feb. 6, 1950; minimum daily, 0.6 second-foot 

Sept. 4, 10-14, 1948.

Remarks.--Records good. No diversion or regulation above station.

Cooperation.--Gage-height record and 68 discharge measurements furnished by Ventura County 

water survey.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

.8 

.8 

.8 

.8

.8 

1.0 

.9 

.9 

.9

.9 

.9

.8 

.8 

.8

.9

.9 

.9 

1.0 

1.0

.9 

.9 

.9 

.8 

.8

.8 

.8 

.8 

.8 

.8 

.8

Nov.

0.8 

.8 

.8 

.8 

.7

.7 

.8 

.9 

1.1 

2.9

1.6 

1.6 

1.5 

1.4 

1.3

1.3 

1.2 

1.2 

1.1 

1.0

1.0 

1.0 

1.1 

1.1 

1.1

1.1 

1.1 

1.2 

1.2 

1.2

Dec.

1.2 

1.2 

1.2 

1.1 

1.1

1.2 

1.9 

13 

7.4 

3.4

2.7 

2.6 

2.6 

2.6 

2.6

2.7 

2.9 

4.5 

3.8 

3.6

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.6 

3.6 

3.6 

3.6

Jan.

3.6 

3.6 

3.8 

4.0 

4.0

4.0 

4.0 

6.4 

5.8 

5.1

15 

14 

11 

11 

11

10 

9.5 

9.1 

9.1 

9.1

8.8 

8.5 

8.2 

7.6 

7.3

7.0 

7.3 

7.9 

7.6 

7.6 

. 7.3

Feb.

7.3 

7.3 

7.6 

7.9 

10

89 

38 

25 

19 

26

22 

20 

19 

17 

16

15 

15 

14 

14 

14

14 

13 

12 

12 

12

12 

12 

12

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

St..... .................................

ter year 1949-50 .......................

Mar.

11 

11

10 

10 

9.5

8.8 

8.5 

9.1 

9.8 

9.8

9.1 

8.8 

8.5 

8.2 

7.9

7.6 

7.3 

6.7 

6.4 

6.4

5.8 

5.8 

6.4 

9.0 

10

8.2 

7.6 

7.3 

7.0 

7.0 

7.0

Apr.

6.7 

5.6 

5.4 

5.4 

5.8

5.6 

5.4 

8.1 

7.9 

6.7

6.1 

5.8 

5.8 

5.6 

5.1

4.9 

4.7 

4.5 

4.5 

4.5

4.7 

4.9 

4.9 

4.7 

4.9

5.1 

5.1 

5.1 

4.9 

4.9

Secondfoot-days

26.5 

34.6 

101.5

1,218.5

238.2 

502.1 

255.5 

163.3 

126.7 

81.3 

46.1 

26.2 

26.4

1,628.4

May

4.9 

4.9 

4.9 

4.9 

4.5

4.2 

4.2 

4.2 

4.2 

4.0

4.0 

4.2 

4.2 

4.0 

3.8

4.0 

4.2 

4.0 

4.0 

4.0

3.8 

4.0 

4.0 

4.2 

4.0

4.0 

3.8 

3.6 

3.4 

3.3 

3.3

Maximum

1.0 

2.9 

13

40

15 

89 

11 

8.1 

4.9 

3.4 

1.8 

1.1 

1.0

89

June

3.4 

3.3 

3.1 

2.9 

2.7

2.7 

2.9 

2.9 

2.9 

2.7

2.7 

2.9 

3.1 

2.9 

2.9

2.7 

2.6 

2.6 

2.6 

2.4

2.5 

2.5 

2.6 

2.6 

2.5

2.5 

2.5 

2.4 

2.3 

2.0

July

1.8 

1.7 

1.8 

1.7 

1.6

1.7 

1.5 

1.6 

1.7 

1.7

1.7 

1.6 

1.7 

1.6 

1.6

1.6 

1.7 

1.5 

1.5 

1.5

1.4 

1.4 

1.4 

1.4 

1.3

1.2 

1.1 

1.1 

1.0 

1.0 

1.0

Minimum

0.8 

.7 

1.1

.7

3.6 

7.3 

5.8 

4.5 

3.3 

2.0 

1.0 

.7 

.7

.7

Aug.

1.1 

1.1 

1.0 

1.0 

1.0

.9 

.9

.9 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8

:?

Mean

0.85 

1.15 

3.27

3.34

7.68 

17.9 

8.24 

5.44 

4.09 

2.71 

1.49 

.85 

.88

4.46

Sept.

0.7 

.7 

.7 

.8 

.8

.8 

.8 

.9 

.9 

.9

.9 

1.0 

.9 

.9 

.9

.9 

1.0 

1.0 

1.0 

1.0

1.0 

.9 

.9 

.9 

.9

.9 

.8 

.8 

.9 

.9

Runoff in 

acre-feet

53 

69 

201

2,420

472 

996 

507 

324 

251 

161 

91 

52 

52

3,230

Peak discharge (base, 100 aee.-ft.). Feb. 6 (5 a.m.) 155 sec.--ft.
VENTURA RIVER BASIN 125

Matilija Reservoir at Matilija, Calif.

Location. Water-stage recorder, lat. 34°29'00", long. 119 0 18'30", in SE$ sec. 29, T. 5 N., 

R. 23 W., at Matilija Dam, 0.2 mile northwest of Matilija. Datum of gage is 1,000.0 

feet above mean sea level (Ventura County survey). Gage height of spillway crast, 

125.0 feet.

Drainage area. 54.6 square miles.

Records available. March 1948 to September 1950.

Extremes. Maximum contents during year, 1.890 acre-feet May 7 (gage height, 66.70 feet); 

minimum, 55 acre-feet (sluice gate open) most of the time Nov. 4 to Jan, 11.

1948-50: Maximum, that of May 7, 1950; minimum since first season of storage, that 

of Nov. 4, 1949, to Jan. 11, 1950.

Remarks. Reservoir is formed by concrete dam. Storage began Mar. 14, 1948. Capacity 

and area ratings for reservoir are based on surveys made in 1948. Dead storage below 

sluice gate (gage height, 0.0 foot), 54 acre-feet. Capacity below outlet gate (gage 

height, 25.0 feet), 250 acre-feet; below spillway level (gage height, 125.0 feet), 

7,018 acre-feet. Water released from reservoir passes down natural channel of Matilija 

Creek for diversion downstream for irrigation.' Records show daily contents at 12 p.m.

Cooperation. Reservoir ratings and gage-height records furnished by Ventura County Water 

survey.

Contents at 12 p.m., In acre-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

. 27

28

29

30

31

Oct.

h!03

h!02

hlOl

hlOO

h99

h98

h97

h96

h95

h95

h95

h95

h95

h94

h93

h92

h92

h90

h88

h88

h87

h86

h86

h86

h86

h85

h84

h84

h84

h83

h83

Nov.

h83

h84

h64

h55

-

.

_

_

_

h57

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

_

.

_

_

e55

Dec.

e55

Jan.

_

_

_

_

-

_

_

_

_

-

_

_

_

171

195

216

235

254

269

274

276

276

276

276

276

275

275

276

276

275

275

Feb.

274

274

274

273

279

454

532

585

628

684

735

779

818

859

896

930

961

992

1,021

1,053

1,082

1,110

1,136

1,162

1,186

1,210

1,233

1,255

_

_

-

liar.

1,280

1,302

1,326

1,347

1,367

1,386

1,405

1,419

1,430

1,440

1,448

1,456

1,462

1,468

1,474

1,479

1,482

1,484

1,484

1,486

1,487

1,488

1,490

1,505

1,526

1,544

1,560

1,574

1,588

1,600

1,614

Apr.

1,626

1,638

1,648

1,657

1,664

1,668

1,675

1,690

1,705

1,718

1,730

1,740

1,752

1,762

1,772

1,781

1,791

1,800

1,808

1,818

1,828

1,834

1,839

1,843

1,848

1,852

1,856

1,861

1,865

1,869

May

1,873 '

1,877

1,882

1,885

1,886

1,886

1,886

1,885

1,885

1,884

1,879

1,860

1,842

1,823

1,806

1,791

1,775

1,759

1,742

1,726

1,709

1,692

1,675

1,659

1,648

1,648

1,646

1,646

1,643

1,641

1,640

June

1,639

1,638

1,637

1,636

1,635

1,633

1,632

1,630

1,630

1,629

1,629

1,629

1,628

1,628

1,628

1,627

1,626

1,626

1,626

1,625

1,624

1,624

1,623

1,622

1,622

1,620

1,619

1,617

1,616

1,614

-

July

1,612

1,609

1,608

1,607

1,606

1,605

1,604

1,603

1,602

1,602

1,602

1,602

1,601

1,600

1,600

1,599

1,597

1,596

1,595

1,594

1,592

1,592

1,586

1,565

1,536

1,508

1,480

1,454

1,426

1,400

1,374

Aug.

1,348

1,320

1,294

1,279

1,272

1,263

1,261

1,261

1,261

1,260

1,259

1,258

1,258

1,258

1,257

1,256

1,256

1,256

1,255

1,252

1,245

1,238

l;232

1,225

1,219

1,212

1,206

1,199

1,193

1,186

1,180

Sept.

1,174

1,166

1,16O

1,154

1,120

1,080

1,040

992

943

894

866

865

865

866

866

866

868

870

870

871

872

672

S71

870

870

844

789

738

686

635

-

e Estimated.

h Gage reading earlier than 12 p.m.

Month

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

Calendar year 1949 .......

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

Gage height 

(feet)t

-

_

_

Contents 

(acre-feet)t

e55

-

_

Change In contents 

 during month 

(acre-feet)

0

-203

+532

t At 12 p.m. on last day of month.

h Single gage reading or determination of gage height earlier than 12 p.m.

e Estimated.
126 VENTURA RIVER BASIN

Matilija Creek at Matilija, Calif.

Location. Water-stage recorder, lat. 34°28'50", long. 119°18'06", in Swi sec. 28, T. 5 N., 

K. 23 W., 0.1 mile southeast of Matilija and 0.2 mile upstream from North Pork. Altitude of gage, about 950 feet.

Drainage area.--55 square miles.

Records available.--October 192? to September 1950.

Extremes .--Maximum discharge during year, 85 second-feet Nov. 3 (gage height, 3.'?2 feet); 

0.1 second-foot Apr. 2-4.

1927-50: Maximum discharge, 15,900 second-feet Mar. 2, 1938, by slope-area method; 

minimum daily, 0.1 second-foot on several days in each year of regulated flow.

Remarks. Records good. Wo diversion above station. Plow regulated by Matilija Reservoir 

U.4 mile above station since Mar. 14, 1948 (see preceding page).

Cooperation. Thirty-six discharge measurements furnished by Ventura County Water Survey. 

Revisions (water years). W 931: 1939, 1940.

Discharge, in second-feet, water year October 1949 to September 195O

Day

2 

3

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 

3O 

31

Oct.

1.8 

1.8

1.1 

1.0 

1.0 

1.0

1.0 

.9 

.6 

1.6 

1.0

1.1

1.4 

1.9 

1.6 

1.2

1.3 

1.2

1.2 

1.2

1.2

1.2 

1.1 

.9 

1.2 

1.3 

.6

Nov.

.8 

15

1.0 

1.1 

1.4 

5.4

2.6 

- 2.4 

2.3 

2.1 

1.9

1.9 

1.8 

1.8 

1.6 

1.5

1.5 

1.5 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

Dec.

1.4 

1.4

2.7 

13

12 

6.5

5.3 

4.1 

3.9 

3.7 

3.4

3.4 

3.7 

5.6 

5.9 

5.6

5.3 

5.0 

4.7 

4.7 

4.4

4.4 

4.4 

4.4 

4.4 

4.4 

4.1

Jan.

4.4 

4.7

4.4 

6.7 

7.2 

6.2

4.5 

.3 

.3 

3.8 

.2

.2 

.2 

..2 

2.3 

6.2

8.8 

8.8 

8.8 

8.8 

8.4

8.0 

7.6 

7.6 

8.0 

8.0 

8.0

Feb.

8.0 

7.6 

7.2

.4 

.3 

.3 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

ber................. ....................

lendar year 1949 

ary

h. ......................................

St.... ..................................

ter year 1949-50 .......................

Mar.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

1.8 

3.4 

4.1

5.0 

5.3 

5.0 

5.0 

4.7

5.2 

5.9 

5.9 

5.9 

5.6

6.4 

7.2 

7.2 

5.4 

.3

.2

.2 

.2 

.2 

.2 

.2

Apr.

0.2 

.1 

.1 

.1 

1.7

2.5 

1.2 

1.3 

.9 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

1.2 

1.8 

1.9 

2.8

3.1 

2.9 

2.9 

2.6 

2.5

Secondfoot-days

37.5 

63.1 

137.6

1,484.1

160.2 

53.0 

91.9 

32. 0 

257.7 

92.5 

165.7 

132.6 

340.3

1,564.1

May

2.4 

2.3 

2.3 

3.2

4.1

3.9 

3.9 

3.9 

3.9 

3.9

7.4 

14

14 

14

14

14 

14 

14 

14 

14

14 

14 

14 

14 

9.9

4.1 

4.1 

4.1 

4.1 

4.1 

4.1

Maximum

1.9 

15 

13

49

8.8 

8.4 

7.2 

3.1 

14 

3.9 

16 

16 

34

34

June

3.7 

3.9 

3.9 

3.9 

3.9

3.9 

3.9 

3.4 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

2.5

2.7 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.6 

2.8 

2.8

July

2.8 

2.8 

2.3

1.5 

1.5

2.0

1.9 

1.6 

1.6 

1.5

1.5 

1.5 

1.5 

1.5 

1.4

1.5 

1.5 

1.6 

1.6 

1.8

1.6 

1.8 

3.4 

12 

16

16 

16 

16 

16 

16 

16

Minimum

0.6 

.7

1.4

.1

.2 

.2 

.2 

.1 

2.3 

2.5 

1.4 

.6 

.3

.1

Aug.

16 

15 

16 

9.6 

5.9

5.6 

2.3 

.6 

.7 

.7

.8 

.8 

.8 

.8 

.8

.8 

.8 

.S 

.7 

2.0

4.4 

4.7 

4.4 

4.7 

4.7

4.7 

4.7 

4.7 

4.7 

4.7 

4.7

Mean

1.21 

2.10 

4.44

4.07

5.17 

1.89 

2.96 

1.07 

8.31 

3.08 

5.35 

4.28 

11.3

4.29

Sept.

4.7 

4.7 

4.7 

4.7 

16

27 

26 

31 

34 

33

20 

1.3 

.9 

.8 

.7

.5 

.6 

.7 

.5 

.4

.3 

.6 

1.2 

1.0 

1.0

12 

29 

29 

28 

26

Runoff in 

acre-feet

74 

125 

273

2,940

318 

105 

182 

63 

511 

183 

329 

263 

675

3,100
VENTUHA RIVER BASIN 127

Ventura River near Ventura, Calif.

Location (revised).--Water-stage recorder, lat. 34°21'00", long. 119°18'20", in southeast 

corner or Santa Ana Grant, 500 feet downstream from highway bridge at Foster Memorial 

Park, 0.2 mile below Coyote Creek and 5 miles north of Ventura, Ventura County. Altitude of gage, about 200 feet. Station was moved downstream 370 feet Nov. 2, 1949, 

with no change in datum of gage.

Drainage area.--187 square miles.

Records available.--September 1911 to January 1914, October 1929 to September 1950.

Average discharge.--23 years (1911-13, 1929-50), 65.0 second-feet.

Extremes.--Maximum discharge during year, 2,000 second-feet Feb. 6 (gage height, 8.36 

reet); no flow during several months.

1911-13, 1929-50: Maximum discharge, 39,200 second-feet Mar. 2, 1938 (gage height, 

19.2 feet), computed by slope-area and contracted-opening methods; no flow at times in 

many years.

Remarks.--Records fair. Water diverted from Ventura River and tributaries for irrigation 

and municipal supply. Relocation of this station a few hundred feet downstream did 

not appreciably affect either drainage area or comparability of the records.

Cooperation.--Twenty-four discharge measurements furnished by Ventura County Water Survey.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Mov.

0 

0 

0 

0 

0

0 

0 

0 

0 

.01

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.01 

.03 

.04 

.04

Dec.

0.04 

.03 

.03 

.04 

.06

.1 

.4 

1.2 

12 

.6

.3 

.2 

.2 

.2 

.3

.3 

.3 

1.9 

.8 

.5

.3

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Jan.

0.1 

.1 

.2 

.2 

.2

.2 

.2 

.6 

.3 

.2

14 

19 

6.0 

4.2

3.5

1.2 

1.0 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.8

.6 

.8 

1.7 

2.0 

1.8 

1.8

Feb.

2.0 

2.0 

2.1 

2.1 

3.0

600 

83 

42 

28 

48

38 

24 

19 

16 

14

12 

11 

10 

9.3 

10

8.9 

6.5 

5.4, 

4.8 

5.1

5.1 

5.6 

5.3

Month

Octo 

Hove 

Dece

Ca

janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

...... ...... .....

h. ......................................

ter year 1949-50 .......................

Mar.

4.3 

3.9 

3.4 

3.4 

3.6

3.6 

3.8 

4.3 

4.3 

4.3

4.3 

4.1 

3.8 

3.6 

3.2

3.2 

3.0 

2.8 

2.8 

3.0

3.2 

3.0 

3.2 

11 

20

11 

9.3 

7.1 

6.5 

3.9 

1.6

Apr.

1.2 

1.6 

1.8 

2.0 

2.1

2.9 

2.7 

4.3 

6.2 

3.3

1.4 

1.4 

1.5 

1.7 

1.5

1.8 

2.2 

2.0 

1.8 

1.7

1.7 

1.5 

1.5 

1.5 

1.5

1.5 

1.5 

1.5 

1.7 

1.8

Secondfoot-clays

0 

.13 

20.80

101.13

67.0 

1,022.2 

152.5 

. 60.8 

18.10 

0 

0 

0 

0

1,341.53

May

2.2 

2.4 

2.0 

1.7 

1.0

.9 

.8 

.7 

.6 

.6

.6 

.7 

.5 

.5 

.7

.4 

.6 

.4 

.2 

.1

.05 

0

Maximum

0 

.04 

12

35

19 

600 

20 

6.2 

2.4 

0 

0 

0 

0

600

June July

Minimum

0 

0 

.03

0

.1 

2.0 

1.6 

1.2 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

.004 

.671

.277

2.16 

36.5 

4.92 

2.03 

.584 

0 

0 

0 

0

3.68

Sept.

Runoff in 

acre-feet

0 

.3 

41

200

133 

2,030 

302 

121 

36 

0 

0 

0 

0

2,660

Peak discharge (base. 500 sec.-ft.). Feb. 6 (4:50 a.m.) 2,000 sec.-ft.
128 VENTURA RIVER BASIN

North Pork Matilija Creek at Matilija, Calif.

Location. Water-stage recorder, lat. 34°29 I 15", long. 119°18'20", in NE£ sec. 29, T. 5 N., 

K. 'd'd 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 1950.

Average discharge. 21 years, 9.33 second-feet.

Extremes. Maximum discharge during year, 157 second-feet Feb. 6; minimum daily, 0.3 secondroot Aug. 21, Sept. 2-4.

1928-32, 1933-50: 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 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

 13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

0.6 

.6 

.6 

.6 

.7

.8 

.8 

.8 

.8 

.7

.7 

.7 

.7 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.7

.7 

.7

.7 

.7 

.7

Nov.

0.8 

.8 

.8 

.8 

.8

.8 

.9 

1.0 

1.6 

5.9

1.8 

1.5 

1.4 

1.2 

1.0

1.0 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

Dec.

0.9 

.9 

.9 

.9 

.9

1.0 

2.6 

26 

6.6 

3.7

.3.2 

2.9 

2.5 

2.1 

2.0

2.0 

2.2 

4.2 

3.4 

2.8

2.5 

2.3 

2.3 

2.2 

2.2

Z.2 

2.1 

2.1 

2.1 

2.1 

Z.O

Jan.

2.0 

2.0 

2.1 

2.0 

2.0

2.0 

2.0 

5.4 

3.8 

2.9

17 

11 

6.6 

6.2 

5.3

4.7 

4.3 

4.2 

4.O 

3.9

3.9 

5.7 

3.5 

3.4 

3.4

3.2 

3.2 

3.5 

3.2 

3.2 

3.1

Feb.

2.9 

2.9 

2.9 

2.8 

3.8

58 

15 

11 

9.1 

10

8.7 

7.6 

7.0 

6.7 

6.4

5.8 

5.8 

5.3 

5.0 

5.0

4.8 

4.5 

4.5 

4.3 

4.1

4.1 

4.1 

4.1

Month

Octo 

Hove 

Decs

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary 

ter year 1949-50 .......................

Mar.

3.9 

3.9 

3.9 

3.6 

3.6

3.6 

3.4 

3.4 

3.2 

3.2

3.2 

3.2

3.1 

3.1 

3.1

3.1 

3.1 

3.1 

3.1 

2.9

2.9 

2.7 

2.7 

4.7 

3.6

3.1 

2.9 

2.9 

Z.9 

Z.7 

2.7

Apr.

2.7 

2.5 

2.3 

2.3 

2.5

2.5 

2.5 

6.2 

3.8 

2.9

2.7 

2.5 

2.5 

2.3

2.1

2.0 

2.0 

2.0 

2.0 

2.1

2.3- 

2.5 

2.7 

2.3 

2.3

2.3 

2.5 

2.5 

2.3 

2.5

Secondfoot-days

22.9 

34.7 

95.8

636.0

130.7 

216.2 

100.5 

76.6 

57.2 

32.7 

20.2 

13.5 

20.0

821.0

Hay

2.3 

2.3 

2.5 

2.5 

2.3

2.1 

2.1 

2.0 

2.0 

1.6

2.0 

2.1 

2.0

2.0 

2.1 

2.0 

1.8 

1.5

1.5 

1.8 

2.0 

2.0 

1.8

1.6 

1.4 

1.4

1.1 

1.1 

1.1

Maximum

0.8 

5.9 

26

26

17 

58 

4.7 

6.2 

2.5 

1.4 

.8 

.6 

1.0

58

June

1.1 

1.1 

1.1 

1.1 

1.0

1.2 

1.2

1.1 

1.1 

1.1

1.1 

1.1 

1.1

1.4 

1.2 

1.1 

1.0 

1.0

1.1 

1.1 

1.4 

1.4 

1.1

1.0 

.9 

.8 

.8 

.8

July

0.7 

.7

.7 

.7 

.7

.8 

.5 

.5 

.7 

.7

.6 

.6 

.6

.7 

.8 

.8 

.8

.7

.6 

.6 

.6 

.6 

.6

.6 

.6 

.5 

.5 

.6 

.7

Minimum

0.6 

.8 

.9

.4

2.0 

2.8 

2.7 

2.0 

1.1 

.8 

.5 

.3 

.3

.3

Aug.

0.6 

.5 

.4 

.4 

. .4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4

.5 

.5 

.4 

.4 

.4

.3 

.5 

.5 

.6 

.5

.5 

.5 

.4 

.4 

.4 

.4

Mean

0.74 

1.16 

3.09

1.74

4.22 

7.72 

3.24 

2.55 

1.85 

1.09 

.65 

.44 

.67

2.25

Sept.

0.4 

.3 

.3

,3 

.4

.4 

.6 

.6 

.6 

.6

.8

.7 

.8 

.8

.8 

1.0 

.8 

.8 

.7

.7

.7 

.7 

.8

.7

.7 

.7 

.8 

.9 

.9

Runoff In 

acre-feet

45 

69 

190

1,260

259 

429 

199 

152 

113 

65 

40 

27 

40

1,630
VENTURA RIVER BASIN 129

Coyote Creek near Ventura, Calif.

Location.--Water-stage recorder, lat. 34°21i20", long. 119°18'50", near southeast corner of 

Santa Ana Grant, 200 feet downstream from highway bridge, 0.2 mile 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 1950.

Average discharge.--22 years, 13.1 second-feet.

Extremes. Maximum discharge during year, 1,000 second-feet Feb. 6 (gage height, 3.54 

reetJ; minimum daily, 0.01 second-foot Nov. 1-8.

1927-32, 1933-50: Maximum discharge, 11,500 second-feet Mar. 2, 1938, by slope-area 

method; no flow at times in each year 1929, 1948, 1949.

Remarks. Records good.

Cooperation.--Thirty-seven discharge measurements furnished by Ventura County Water Survey.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

O.O2 

.02 

.02 

.02 

.02

.04" 

.03 

.04 

.04 

.04

.04 

.03 

.03 

.03 

.04

.04 

.04 

.03 

a. 03 

.03

.03 

.03 

.03 

.03 

,03

.03 

.04 

.03 

.03 

.03 

.03

Nov.

0.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.1 

.7

.07 

.05 

.05 

.05 

.04

.04 

.04 

.04 

.04 

.04

.04 

.05 

.05 

.07 

.07

.07 

.07 

.07 

.07 

.07

Dec.

O.O7 

.05 

.04 

.04 

.05

.05 

.5 

.7 

.2 

.2

.2 

.2 

d.2 

d.2 

.2

.2 

.2 

.5 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Jan.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.4 

.3 

.3

.7 

1.3 

.4 

.6 

.5

.4 

.4

a. 5

1.0 

1.1 

1.3 

1.4 

al.3 

al.2

Feb.

al.O

f300 

f40 

f2O 

14 

26

20 

13 

10 

8.7 

8.0

6.2 

5.7 

5.2 

a4.7

a4.2 

a3.9 

a3.7 

a3.6 

a3.5

a3.4 

a3.3 

a3.2

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1949

ter year 1949-50 .......................

Mar.

a3.0 

a2.9 

a2.7 

a2.6 

a2.5

aZ.4 

2.3 

2.3 

2.3 

2.3

2.3 

2.3 

2.1 

2.1 

2.2

2.1 

2.1 

2.0 

2.2

2.2 

2.1 

2.0 

5.6 

8.7

3.5 

2.8 

2.3 

2.2 

2.2 

2.0

Apr.

1.9 

1.9 

1.6 

1.6 

1.9

2.1 

d2.O 

dl.9 

dl.9 

dl.8

dl.8 

dl.7 

1.6 

1.6 

1.7

1.6 

1.2 

1.3 

1.5

1.6 

1.7 

1.6 

1.5 

1.5

1.6 

1.6 

al.5 

al.4 

al.2

May

al.l 

1.0 

1.1 

1.0 

1.2

1.1 

1.0 

1.0 

1.0 

1.0

.9 

1.0 

1.2 

1.3 

1.4

.8 

.9 

1.0 

.9

.8 

.8 

.8

o 

o

.8 

.8 

.9 

.9 

.8 

.8

Second- ,.-_. _ _ foot-days "axiaium

O.97 0.04 

1.97 .7 

6.40 .7

76.78 1.1

17.9 1.4 

522.0 300 

82.4 8.7 

49.6 2.1 

29.9 1.4 

14.7 .8 

6.8 .3 

4.3 .2 

3.0 .1

739.94 300

June

0.8 

.8 

.7 

.7 

.6

.6 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.5 

.5

a. 5 

a. 5 

a. 4 

a. 4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3

July

0.3 

 .3 

.3 

.3 

.3

.3 

.3 

.2 

.3 

.3

a. 3 

a. 3 

a. 3 

a. 2 

a. 2

a. 2 

a. 2 

.2 

.2 

.2

.2 

.2 

.2 

.2 '.2

.1 

.1 

.1 

.1 

.1 

.1

Aug.

0

Minimum Mean

0.02 0.031 

.01 .066 

.04 .206

0 .210

.58 

18.6 

2.0 2.66 

1.2 1.65 

.8 .96 

.3 .49 

.1 .22 

.1 .14 

.1 .10

2.03

Peak discharge (base, 450 sec. -ft. j. Feb. 6 (about 4 a.m..) 1,000 sec. -ft.

.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

 1

Sept.

0.1

.1 

.1.1 

.1

.1 

.1 .1 

.1 

.1

.1 

.1 

.1 

.1.1

.J .1 

.1 

.1 

.1

.1 

.1 

.1 .1 

.1

.1 

.1 

.1 

.1

.1

Runoff In 

acre-feet

1.9 

3.9 

13

153

36 

1,040 

163 

98 

59 

29 

13 

8.5 

6.0

1,470

a Ho gage-height record; discharge computed on basis of discharge measurements, waather records, 

interpolation or extrapolation.

d Oage-helght record doubtful; discharge Interpolated.

f Fragmentary gage-height record; discharge computed on basis of recorded maximum,atage, frajjjoentarv 

gage-height record, and records for other stations' In Ventura River Basin below Matlllja Reservoir.
130 CARPINTERIA CREEK BASIN

Carpinteria Creek near Carpinteria, Calif

Location.--Water-stage recorder, lat. 34°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 1950.

Extremes. Maximum discharge during year, 215 second-feet Feb. 6 (gage height, 3.70 feet); 

no now during most of year.

1941-50: 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 fair. Small lake above station catches storm runoff from 0.74 square 

mTT^, which is drained past station by pumping; probably no flow from this lake this 

year.

Revisions (water years).--W 1061: 1943.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

ZO

21 

ZZ 

23 

Z4 

Z5

Z6 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

.4

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

3.6 

8.8 

0 

0

0 

.8 

0 

0 

0

0 

.4 

1.4 

.5 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

1.4 

0 

0

5.3 

1.2 

.2 

.2 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

1.2 

.6 

0 

0

Feb.

0 

0 

0 

0 

1.7

41 

3.5 

.6

.1 

1.5

.3

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Nove 

Dece

Ca

Janu 

»ebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

ter year 1949-50 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

1.3 

. .3

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0 

.4 

15.5

18.40

10.1 

48.8 

1.6 

0 

0 

0 

0 

0 

0

76.4

May

Maximum

0 

.4 

8.8

8.8

5.3 

41 

1.3 

0 

0 

0 

0 

0 

0

41

June July

Minimum .

0 

0 

0

"o

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

.01 

.50

.050

.33

1.74 

.05 

0 

0 

0 

0 

0 

0

.21

Sept.

Runoff In 

acre-feet

0 

.8 

31

37

20 

97 

3.2 

0 

0 

0 

0 0' 

0

152

Peak discharge (base, 25 see.-ft.). Dec. 8 (12 m.) 28 sec.-ft. ; Jan. 11 (1 p.m.) 35 sec.-ft.; 

Feb. 6 (3 a.m.) Z15 sec.-ft. 
ATASCADERO CREEK BASIN 131

Atascadero Creek near Goleta, Calif.

Location.--Water-stage recorder, lat. 34°25'25", long. 119°48'40", in La Goleta Grant, at 

highway bridge just downstream from Maria Ygnacio Creek, 1 mile upstream from mouth 

and 1.3 miles southeast of Goleta, Santa Barbara County. Altitude of gage, about 40 

feet (from topographic map).

Drainage area.--18.3 square miles.

Records available.--October 1941 to September 1950.

Extremes.--Maximum discharge during year, 180 second-feet Feb. 6 (gage height, 7.23 feet); 

no now for many days,

1941-50: 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; occasional waste 

water from local irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

.1 

.2

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec.

0 

0 

0 

0 

0

0 

0 

6.8 

3.5 

.8

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

- 0 

0 

0 

0

0 

0

.1

0

.1

6.6 

3.6 

1.2 

.5 

.7

.2

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.3 

.2 

.2 

.3 

.2 

.1

Feb.

0.1

.1 

.1 

.1

.1

41 

6.3 

3.1 

.6

1.8

2.1 

.4 

.2 

.1 

.09

.09 

.1 

.1 

.08 

.06

.05 

.05 

.05 

.05

.05

.05 

.04 

.03

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber.......... ...........................

lendar year 194£

ter year 1949-50 ........................

Mar.

0.02 

.02 

.01 

.01 

.01

.02 

.02 

.04 

.2 

.3

.3 

.6 

.3

1.4 

1.3

.6 

.1 

.2 

.08 

.04

.04 

.02 

.02

.1 

.1

.05 

.03 

.02 

.06 

.08 

.03

Apr.

0.02 

.01 

.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

Secondfoot-days

0

0 

11.1

100.49

15.2 

56.99 

6.12 

.04 

0 

.73 

.02 

.05 

1.93

92.48

May

Maximum

0.2 

0 

6.8

27

6.6 

41 

1.4 

.02 

0 

.4 

.01 

.04 

.4

41

June

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

.05 

.02 

0

0 

.4 

.1 

.01

.1

.04 

.01 

0 

0 

0

0 

0 

0 

0 

0

July

0 

0 

0 

0 

0

0 

0 

0 

.01 

0

0 

0 

0 

0 

0

0 

0 

0 

.01 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug.

0 

0 

0 

0 

0

.04 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

.01

Minimum Mean

0 0.01 

0 0 

0 .36

0 .275

0 .49 

.03 2 . 04 

.01 .197 

0 .001 

0 0 

0 .024 

0 .001 

0 .002 

0 .064

0 .253

Sept.

0 

0 

0 

0 

.04

.1 

.2 

.2 

.1 

.2

.2 

.2 

.2 

.4

.07

.01 

.01 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff in 

aore-feet

0.6 

0 

22

199

30 

113 

12 

.1 

0 

1.4 

.04 

.1 

3.8

183

Peak discharge (base. 60 see.-ft. >. Feb. 6 (3 a.m.) 180 sec.-ft.
132 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 

FaTUerson 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 1950.

Extremes.--Maximum discharge during year, 230 second-feet Feb. 6 (gage height, 3.63 feet); 

no now for several months.

1941-50: Maximum discharge, 1,960 second-feet Apr. 4, 1941, from rating curve extended above 850 second-feet by logarithmic plotting; maximum gage height, 7.24 feet Jan. 

21, 1943; no flow at times during each year.

Remarks.--Records good. Many small diversions above station for irrigation.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

30

21 

22 

33 

24 

25

26 

27 

28 

29 

30 

31

Oct.

O 

0 

0 

0 

0

O 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

o

0

o

0 

0

o 

o 

o

o

0 

.01 

.02

o

.01

Nov.

0 

0 

0 

.01 

0

0 

0 

0 

0 

5.6

.1 

0 

O 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

Dec.

O 

0 

0

o

0

o

1.2 

13 

1.6 

.1

.3 

.2 

.2 

.2 

.3

.2 

.1 

.9 

1.0 

.1

.3 

.2

.2 

.2 

.2

.1 

.2 

.3 

.3 

.2 

.3

Jan.

0.2 

.2 

.2 

.2 

.2

.2

.2 

.8 

2.0 

.2

14 

2.6 

.6 

.6 

.9

.2 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.4 

.4

.4 

.4 

.3 

.5 

.5 

.4

Feb.

0.4 

.4 

.4 

.4 

.9

42 

3.4 

1.7 

1.0 

1.6

1.5 

.6 

.4 

.3 

.3

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2

.5 

.4 

.4

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

O.4 

.4 

.4 

.4 

.3

.3 

.3 

.4 

.4 

.4

.4 

.4

.3 

.3 

.3

.2 

.2 

.2 

1.6 

1.3

.1 

.2 

.4 

.4 

.4 

.4

Apr.

0.4 

.4 

.3 

.3 

.3

.3 

.4 

.4 

.6 

.5

.3 

.3 

.5 

.4 

.3

.3

.2 

.2 

.1 

.1

.2 

.2 

.1 

.2 

.3

.2 

.1 

.1 

.1 

.3

Seeondfoot-days

O.04 

5.71 

31.5

161.33

37.4 

57.7 

13.6 

8.3 

1.89 

.75 

.21 

O 

0

136.00

May

0.2 

.1 

.1 

.1 

.3

.1 

. e.05

, e.04

Maximum

0.02 

5.6 

13

33

14 

43 

1.6 

.6 

.3

0 

0

43

June

 eO.O3

1

. e.03

Minimum

July

.60.01

0 

0 

0 

0

0 

0 

0

o

0

o

O

0

o

0

.1 

.1 

.1 

.1

o

0 

0

0

Aug.

Mean

0.001 

.190 

.69

.442

.88 

3.O6 

.41 

.37 

.061 

.035 

.007 

O 

O

.373

Sept.

Runoff In 

acre-feet

0.08 

11 

43

319

54 

114 

25 

16 

3.7 

1.5 

.4 

0 

0

369

Peak discharge (base. 100 see.-ft.).--Feb.>6 (1:30 a.m.) 230 sec.-ft.

e Plow continuously low and on many days Intermittent; dally mean discharge less than 0.1 sec.-ft.
SANTA YNEZ RIVER BASIN 133

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

Location.--Water-stage recorder, lat. 34°32'35", long. 119°51 I 45", in San Marcos Grant, 

0.1 mile downstream from Los Laureles Canyon Creek and 13 miles east of Santa Ynez, 

Santa Barbara County. Datum of gage is 794.52 feet above mean sea level, datum of 

1929 (Bureau of Reclamation bench mark).

Records available. April 1947 to September 1950.

Extremes.--Maximum discharge during year, 161 second-feet Feb. 6 (gage height, 4.62 feet); 

no now during several months.

1947-50: Maximum discharge, 191 second-feet Mar. 10, 1949 (gage height, 4.77 feet); 

no flow for several months each year.

Remarks. Records fair. Flow regulated by Jameson Lake and Gibraltar Reservoir. Water 

diverted out of basin from tttese reservoirs to cities of Montecito and Santa Barbara. 

Flow also affected by intermittent local pumping for irrigation.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

.2 

.4

14 

3.9 

2.6 

2.2 

1.9

1.6 

1.6 

1.6 

1.5 

1.4

1.4 

1.4 

1.3 

1.2 

1.1

1.0 

.9 

1.0 

1.0 

1.0 

1.0

Feb.

1.1 

1.3 

1.4 

1.5 

1.6

36 

5,5 

3.6 

2.9 

2.7

2.6 

2.1 

1.8 

1.5 

1.3

1.2 

1.1 

1.0 

1.0 

.8

.8 

.8 

.7 

.5 

.6

.6 

.5 

.5

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

0.5 

.6 

.5 

.4 

.6

.6

.6 

.6 

.6 

.6

.5 

.3 

.4 

.4 

.5

.5 

.5 

.2 

.2 

.4

.5 

.6 

.4 

.5 

.9

.a

.8 

.9 

.9 

1.0 

1.0

Apr.

1.0 

1.0 

.8 

1.0 

.8

.6 

.7 

1.0 

1.3 

1.0

.9 

.6 

.1 

.6 

.3

.6 

.7 

.5 

.7 

.5

.6 

.4 

.5 

.6 

.6

.4 

.5 

' .6 

.5 

.6

Secondfoot-days

0 

0 

0

194.1

45.2 

77.0 

17.8 

20.0 

9.5 

1.3 

. 0 

0 

O

170.8

May

0.6 

.6 

.7 

.7 

.6

.3 

.1 

.2 

.2 

.2

.3 

.2 

.2 

.1 

.1

.2 

.3 

.3 

.3 

.2

.3 

.3 

.2 

.1 

.3

.4 

.3 

.6 

.4 

.1 

.1

Maximum

0 

0 

0

46

14 

36 

1.0 

1.3 

.7 

.4 

0 

0 

0

36

June

0.2 

.3 

.4 

.2 

O

0 

.1 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

O 

O 

0

O 

O 

O 

0 

0

O 

0 

0 

0 

0

July

Minimum

0 

0 

O

0

0 

.5 

.2 

.1 

.1 

0 

O 

O 

O

O

Aug.

Mean

0 

0 

0

.53

1.46 

2.75 

.57 

.67 

.31 

.04 

0 

0 

0

.47

Sept.

'

Runoff In 

acre-feet

0 

0 

0

3S5

90 

153 

35 

40 

19 

2.6 

O 

0 

0

340

207481 O - 52 - 10
134 SANTA YNEZ RIVER BASIN

Santa Ynez River near Santa Ynez, Calif.

Location.--Water-stage recorder, lat. 34°35<20", long. 120°01'25", in Canada de los Pinos 

Cirant, at San Lucas Bridge, 500 feet upstream from Santa Agueda Creek and 4 miles southeast of Santa Ynez, Santa Barbara County. Datum of gage is 497.02 feet above mean sea 

level, datum of 1929 (Bureau of Reclamation bench mark).

Drainage area. 435 square miles.

Records available. December 1928 to September 1931, October 1932 to September 1950.

Average discharge. 20 years (1939-31, 1932-50), 99 second-feet.

Extremes . Maximum discharge during year, 700 second-feet Feb. 6 (gage height, 5.05 feet); 

no flow for several months.

1929-31. 1932-50: Maximum discharge, 43,700 second-feet Mar. 2, 1938 (gage height, 

17.90 feet), from rating curve extended above float measurement of 34,100 second-feet; 

no flow August 1947 to March 1949 and at times in other years.

Remarks. Records fair. Flow regulated by Jameson Lake and Gibraltar Reservoir. Water 

inverted out of basin from these reservoirs to cities of Montecito and Santa Barbara. 

Some water for irrigation pumped from wells along banks of river in valley upstream.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30

JLi

Oct. Nov. Dec. Jan. Feb.

O

0 

0 

0 

0

222 

64 

9.8 

1.6 

31

113 

38 

17 

9.9 

6.2

5.4 

5.0 

4.3 

3.7 

3.4

3.4 

2.9 

2.9 

2.3 

1.9

1.7 

1.7 

1.9

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

her........ .............................

lendar year 194£

ter year 1949-50 .......................

Mar.

1.6 

2.1 

2.1 

2.3 

2.7

2.7 

2.3 

1.7 

1.6 

1.4

1.3 

.9 

.9 

1.0 

.8

.9 

.8 

.7 

.7 

.7

.6 

.6 

.6 

.7 

.7

.9 

1.6 

2.3 

2.9 

3.1 

2.5

Apr.

2.5 

1.6 

1.9 

1.3 

1.2

.8 

.7 

.8 

26 

28

19 

14 

10 

9.5 

7.0

5.4 

4.0 

2.9 

2.3 

2.1

1.6 

1.6 

1.9 

1.6 

1.3

1.4 

1.3 

1.3 

1.4 

1.6

Secondfoot-days

0 

0 

0

212.2

0 

553.0 

45.7 

156.0 

23.2 

1.5 

0 

0 

0

'779.4

May

1.6 

1.4 

1.3 

1.2 

1.0

1.0 

.9 

.9 

.9 

.9

.8 

.8 

.8 

.8 

.7

.7 

.7 

.8 

.7 

.6

.6 

.6 

.5 

.4 

.4

.4 

.4 

.4 

.4 

.3 

.3

Maximum

O

0 

0

8.0

0 

222 

3.1 

28 

1.6 

.3 

0 

0 

0

222

June

0.3 

.3 

.3 

.2 

.2

.1 

.1 

0 

0 

0

0 

0 

0 

0 

.0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

i 0 

i 0 

0 

0 

0

July

Minimum

0 

0 

0

0

0 

0

:?.3 

O 

0 

O 

O

0

Aug. Sept.

Mean Runoff in Mean acre-feet

O 0 

0 0 

0 0

. 58 420

0 0 

19.8 1,100 

1.47 91 

5. 2O 309 

.75 46 

.05 3.0 

0 0 

0 0 

0 0

2.14 1,550

Peak discharge (base, 150 sec 

ft.

,-ft.). Feb. 6 (11:30 a.m.) 700 sec. -ft. ; Feb. 1O (11 p.m.) 200 sec.-
SANTA INEZ RIVER BASIN 135

Santa Ynez River at Solvang, Calif.

Location.--Water-stage recorder, lat. 34°35'10", long. 120°08'40", in San Carlos de Jonata 

(Jrant at Mission Bridge, 25 feet downstream from Alisal Creek and 0.9 mile south of 

Solvang, Santa Barbara County.

Drainage area.--S8S square miles.

Records available.--October 1928 £o November 1936, June 1937 to November 1940 (irrigation 

seasons only). October 1946 to September 1950. 1937 to 1946, many miscellaneous discharge measurements.

Average discharge.--12 years (1928-36, 1946-50), 32.8 second-feet.

Extremes.--Maximum discharge during year, 750 second-feet Dec. 7 

No now Oct. 1-21, Aug. 10 to Sept. 30.

1946-50: Maximum discharge, 1,250 second-feet Nov. 20, 1946 

feet); no flow for several months during period 1948-50.

height, 6.32 feet), 

;age height, 6.15

Remarks.--Records fair for discharge up to 100 second-feet, poor above. Flow regulated at 

Jameson Lake and Gibraltar Reservoir. Water diverted out of basin from these reservoirs to cities of Montecito and Santa Barbara. Some water for irrigation pumped from 

wells along banks of river in valley upstream.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

3O 

31

Oct.

O 

O 

O 

O 

O

O 

O 

O 

O 

O

O 

O 

0 

O 

0

O 

O 

0 

O 

0

O

.1

.2 

.5 

1.0

1.2 

1.2 

1.1 

1.0 

.8 

.8

Nov.

0.8 

.8 

.8 

.9 

1.4

2.0 

2.4 

3.2 

3.6 

4.8

4.3 

4.0 

3.8 

3.6 

3.8

4.3 

4.3 

4.5 

4.5 

4.5

4.3 

4.O 

4.O 

3.8 

3.8

4.0 

4.3 

4.0 

4.0 

4.3

Dec.

4.4 

4.3 

4.0 

4.O 

4.O

4.3 

20 

88 

10 

7.3

5.6 

5.3 

5.1 

5.6 

5.6

5.6 

5.3 

5.6 

5.8 

5.9

5.9 

5.9 

5.9 

5.6 

5.3

5.3 

5.1 

5.1 

5.1 

5.3 

5.3

Jan.

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

5.3 

6.8 

6.6 

5.9

30 

11 

7.6 

7.3 

7.3

6.9 

6.9 

6.6 

6.6 

6.6

6.6 

6.6 

6.6 

6.6 

6.6

6.6 

6.6 

6.9 

6.8 

6.6 

6.2

Feb.

6.2 

6.2 

6.2 

6.2 

6.6

160 

1OO 

30 

17 

15

36 

26 

16 

13 

11

10 

9.6 

9.2 

8.8 

8.4

8.4 

8.0 

7.6 

7.3 

7.3

7.3 

7.3 

7.3

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

7.3 

.3 

.3 

.3

'.5

.8 

.5

.8

.1 

4.3 

3.8

4.0 

3.8 

3.8 

3.8 

4.3

4.5 

4.3 

3.8 

4.3 

4.5

5.1 

5.1 

4.8 

4.3 

3.8 

4.3

Apr.

4.8 

4.5 

4.5 

4.3 

3.8

3.6 

3.6 

3.8 

4.8 

4.8

4.5

5.1 

5.1 

5.3

5.3 

5.6 

5.2 

4.8 

5.3

5.6 

5.9 

5.6 

5.9 

5.3

4.8 

4.3 

4.O 

3.6 

3.6

Secondfoot -days

7.9 

102.8 

265.5

1,509.9

225.9 

561.9 

153.4 

142.4 

75.1 

44.5 

4O.9 

4.6 

0

1,624.9

May

3.8 

3.6 

3.2 

2.8 

2.6

2.6 

2.6 

2.6 

2.6 

2.2

2.2

2.1 

2.4 

2.4

2.6 

2.2 

2.1 

2.0 

2.0

2.0 

2.0 

2.1 

2.1

2.1

2.1 

2.2 

2.6 

2.6 

2.4 

2.2

Maximum

1.2 

4.8 

88

90

30 

160 

7.3 

5.9 

3.8 

2.2 

3.0 

.8 

O

160

June

2.2 

2.2 

2.1 

2.0 

1.8

2.0 

1.8 

1.7 

1.7 

1.6

1.6

1.6 

1.4 

1.4

1.4 

1.3 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.1 

1.1 

1.1 

1.0

July

1.0 

.9 

.9 

.9 

.9

.9 

.8 

.8 

.8 

.8

1.0

2.4 

3.0 

2.6

2.2 

2.2 

2.1 

1.8 

1.6

1.4

1.2 

1.1 

1.1 

1.1

1.0 

1.0 

1.0 

1.0 

.9 

.8

Aug.

0.8 

.8 

.7 

.5 

.5

.4 

.4 

.3 

.2 

O

O 

O 

O 

O 

O

O 

O 

O 

0 

O

O 

0 

O 

O 

0

0 

0 

O 

0 

0 

O

Sept.

mni-num Mean ££«.£

0 0.25 16 

.8 3.43 204 

4.O 8.56 527

0 4.14 3,000

5.3 7.29 448 

6.2 20.1 1,110 

3.8 4 . 95 304 

3.6 4.75 282 

2.0 2.42 149 

1.0 1.48 88 

.8 1.32 81 

0 .15 9.1 

00 0

0 4.45 3,220

Peak discharge (base, 150 sec.-f t.) . Dec. 7 (11:45 p.m.) 750 sec. -ft.; Feb. 6 (2 a.m.) 350 sec.-
136 SANTA YNEZ RIVER BASIN

Santa Ynez River near Buellton, Calif.

Location. Water-stage recorder, lat. 34°36'50 n , long. 120°14'30", in Nojoqui Grant, 

a miles west of Buellton, Santa Barbara County.

Records available. June 1948 to September 1950 (irrigation seasons only).

Remarks. Records fair. Plow regulated at Jameson Lake and Gibraltar Reservoir. Water 

diverted out of basin from these reservoirs to cities of Montecito and Santa Barbara. 

Some water for irrigation pumped from wells along banks of river in valley upstream.

Discharge, In second-feet, water year October 1949 to September 195O

nay

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 

SO 

31

Oct. Nov.

O

o 

o 

o

0 

O

o 

o 

o 

o

o 

.1

.2 

.2 

.2

.2 

.2

.1 

.1 

.1

.2 

.1 

.1 

.2

.1

O 

O 

O 

0 

.2

Dec.

to. 3

Jan. Feb.

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

nber. ............-_-_..-_..............-

lendar year

ary

uary. ...

1 25-30. ................................

St......................................

Mar. Apr.

0.8

.7 

.6 

.5 

.5 

.4

Secondfoot-days

0 

2.3

-

3.5 

6.6 

1.3

0 

0 

O

-

Hay

0.5 

.5 

.4 

.5

.4

.4 

.4

.4 

.4 

.3

.3 

.2 

.1 

.1

0

O

.1

.2 

.2

.1

.1 

.3 

.2 

.2 

.2

.1

0 

O 

0 

0 

0

Maximum

O 

.2

-

.8 

.5 

.1

0 

0 

O

-

June

0 

0 

0

o

0

0 

0 

0

.1 

.1

.1 .1 

.1

.1 

.1

.1 

.1 

.1 

.1 .1

.1

0 

0 

0

o

o 

o 

o 

o 

o

July

Minimum

o 

o

-

.4

o

0 

0

o

0

-

Aug.

Mean

0 

.08

-

.58 

.21 

.04 

0 

O 

0

-

Sept.

Runoff In 

acre-feet

o

4.6

-

6.9 

13 

2.6

0 

O

o

-

t Result of discharge measurement.
SANTA YNEZ- RIVER BASIN 137

Santa Ynez River at narrows, near Lompoc, Calif.

Location.--Water-stage recorder, lat. 34°38'10 n , long. 120°25'30", in Canada de Salsipuedes 

orant, 0.5 mile upstream from Robinson Bridge, 2.0 miles downstream from Salsipuedes 

Creek, and 2 miles east of Lompoc, Santa Barbara County.

Records available.--April 1947 to September 1950 (fragmentary).

Remarks.--Records fair. Plow regulated at Jameson Lake and Gibraltar Reservoir. Water 

aTWrted out of basin from these reservoirs to cities of Kontecito and Santa Barbara. 

Plow also affected by local pumping from ground water.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

MA IT

June 

July 

Augu 

Sept

Wa

mber. ...................................

Lendar year 

ary

1 24-30..................................

ter year .......................

Mar. Apr.

0.1 

.3

.5 

.4 

.3 

.3 

.3

Secondfoot-days

0 

0

-

2.2

4.00 

0 

0 

0 

0

-

May

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.1 

.1 

.2 

.2 

.01

.01 

.07 

.07 

.07 

.07

.07 

.03 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0

'

.5 

.3 

0 

0 

0 

0

-

June

Minimum

July

0 

0

-

0.1 

0 

0 

0 

0 

0

-

Aug.

Mean

0 

0

-

0.31 

.129 

0 

0 

0 

0

-

Sept.

Runoff in 

acre-feet

0 

0

-

4.4 

7.9 

0 

0 

0 

0

-
138 SANTA YNEZ RIVER BASIN

Santa Ynez River near Lompoc, Calif.

Location. Water-stage recorder, lat. 34°38'30", long. 120°25 I 50", near boundary of La 

Mission Vieja de la Pur.islma Grant, at Robinson Bridge, 1.5 miles east of Lompoc, Santa 

Barbara County, and 2.5 miles downstream from Salsipuedes Creek. Datum of gage is 

79.28 feet above mean sea level, datum of 1929.

Drainage area. 790 square miles.

Records available. November 1906 to September 1918 (1909, gage heights only), April 1925 

to septemoer i960.

Average discharge»-~34 years (1907-8, 1910-18, 1925-50), 1981 second-feet.

Extremes. Maximum discharge during year, 850 second-feet Feb. 6 (.gage height, 5.38 feet); 

no now during most of year.

1908-18, 1925-50r Maximum discharge, 45,000 second-feet Mar. 3, 1938 (gage height, 

29.3 feet, site and datum then In use], from rating curve extended above float measurement of 38,000 second-feet. No flow at times in some years.

Maximum daily discharge, roughly estimated as 62,000 second-feet occurred Jan. 9, 

1907.

Remarks. Records fair. Plow regulated by Jameson Lake and Gibraltar Reservoir. Water 

adverted out of basin from these, reservoirs to cities of Montecito and Santa Barbara. 

Some water for Irrigation pumped from wells along banks of river.

Revisions (water years). W 931: 1914-40(M) . W 981: 1938(M).

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22

23 

24 

25

26 

27 

26 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

.8 

32 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 - 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

alO 

a.l

14 

5.8 

4.2 

13

11

4.6 

2.9 

dl.O 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.4 

.6 

.4

Feb.

0.3 

.4 

.4 

.4 

1.4

e235 

a30 

a40 

19 

19

16', 

li] 

19 

14 

11

9.8 

9.4 

9.0 

8.5 

8.5

8.5 

8.5 

8.5 

8.5 

8.1

8.1 

8.1 

S.I

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949

uary ... . '

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

ter year 1949-50 .......................

Mar.

8.1 

7.7 

7.3 

6.5 

6.2

5.8 

5.8 

5.5 

4.9 

4.3

3.6 

2.9 

2.5 

2.3 

1.9

1.8 

1.6 

1.6 

1.2 

1.0

.6 

.3 

.1 

1.2 

9.5

2.5 

1.2 

.9 

.6 

.6 

.4

Apr.

0.4 

.4 

.3 

.3 

.2

.1 

.1 

.2 

.6 

.5

.2 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot -days

0 

0 

32.8

990.9

68.0 

531.5 

100.4 

3.4 

0 

0 

0 

0 

0

736.1

May

Maximum

0 

0 

32

250

14 

235 

9.5 

.6 

0 

0 

0 

0 

0

235

June July

Minimum

0 

0 

0

0

0 

.3

.1 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

1.06

2.71

2.19 

19.0 

3.24 

.11 

 0 

0 

0 

0 

0

2.02

Sept.

Runoff In 

acre-feet

0 

0 

65

1,960

135 

1,050 

199 

6.7 

0 

0 

0 

0 

0

1,460

S50 sec.-ft.

lormal recession of flow and records for

Peak discharge (base, 500 see.-ft.). Feb. 6 (4:30 a.m.)

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

station at H Street, near Lompoc.

d Doubtful gage-height recordj discharge computed as explained In footnote a.

e Stage-discharge relation uncertain. Discharge computed on basis of[discharge measurements, 

weather records, normal recession of [floi»t and records for station at H Street, near Lompoc.
SANTA YNEZ RIVER BASIN 139

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

Location. Water-stage recorder, lat. 34°40'10", long. 120°27'20", in Lompoe Grant, at H 

Street Bridge/ on State Highway 1, 2 miles north of Lompoc, Santa Barbara County.

Records available. April 1947 to September 1950.

Remarks. Records good. Flow regulated by Jameson Lake and Gibraltar Reservoir. Water 

diverted out of basin from these'reservoirs to cities of Montecito and Santa Barbara. 

Some water for irrigation pumped from wells along banks of river and in Lompoc Valley.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

8.3 

.7 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

3.7

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

220 

20 

27 

12 

9.1

9.4 

3.4 

6.3 

2.9 

1.0

.4

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

mber. ............ i ......................

lendar year 1949 

ary

Mar. Apr.

Secondfoot-days

0 

0 

9.0

710.7

3.7 

311.6 

0 

0 

0 

0 

0 

0 

0

324.3

May

Maximum

0 

0 

8.3

215

3.7 

220 

0 

0 

0 

0 

0 

0 

0

220

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.29

1.95

.12 

11.1 

0 

0 

0 

0 

0 

0 

0

.89

Sept.

Runoff In 

acre-feet

0 

0 

18

1,410

7.3 

618 

0 

0 

0 

0 

0 

0 

0

643
140 SANTA YNEZ RIVER BASIN 

Santa Ynez River at barrier, near Surf, Calif.

Location.--Water-stage recorder and compound broad-crested weir, lat. 34°41'25", long. 

120°35'30", 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 1947 to September 1950.

Extremes. Maximum discharge during year, 250 second-feet Feb. 6 (gage height, 2.05 feet), 

rrom rating curve based on weir table; no flow Aug. 1-28, Sept. 3-30.

1947-50: Maximum discharge, 670 second-feet Mar. 11, 1949 (gage height, 2.58 feet), 

from rating curve based on weir table ; no flow during several months of each year.

Remarks. Records poor. Flow at this station represents waste to the ocean. Flow regurated by Jameson Lake and Gibraltar Reservoir. Water diverted out of basin from these 

reservoirs to cities of Montedto and Santa Barbara. Some water for irrigation pumped 

from wells along river banks.

 1950

Day

1 

2

3

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24

25

26 

27 

26 

29

30 

31

Oct.

O.OI 

.02 

.02 

.03 

.03

.03 

.02 

.02 

.02 

.02

.03 

.03 

.03 

.03 

.05

.07 

.07 

.07 

.07 

.07

.05 

.05 

.05 

.05 

.07

.07 

.07 

.07 

.07 

.07 

.07

Hov.

0.07 

.07 

.07 

.07 

.07

.07 

.07 

.07

.1

, .1

Dec.

0.2

Jan.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3 

.2

.3 

.3 

.2 

.3 

.3

.2 

.4 

.4 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.4 

.5 

.7 

.8 

.6

Feb.

0.5 

.4 

.3 

.3 

.6

60 

80 

10 

11 

7.4

3.8 

4.1 

2.6 

1.7 

1.8

1.1 

.8 

.7 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAv

June 

July 

Augu 

Sept

Ha

Bber. ...........,........_......._....__

lendar year 1949 

apy

i. ......................................

ter year 1949-50 .......................

Mar.

0.5 

.5 

.6 

.5 

.4

.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.2

.2 

.3 

.5 

.9 

.9

.6 

.8

1.0 

1.3 

1.1

1.5 

1.1 

.9 

.6 

.5 

.5

Apr.

0.5 

> .5

.5 

 4

.3

.3 

.3 

.3 

.3 

.3

May

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1 

.1

Second- Maximum 

foot -days ^^

1.43 0.07 

2.76 

6.2

849.98 260

9.4 .8 

192.1 80 

18.7 1.5 

12.5 

5.9 .3 

1.55 .07 

1.10 .07 

.03 .01 

.02 .01

251 . 69 80

June

0.07 

.07 

.07 

.07 

.07

.07 

.07 

.07 

.07 

.07

.07 

.07 

.07 

.07 

.07

.07 

.05 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.02

July

0.02 

.'02 

.02 

.02 

.02

.02 

.02

.01 

.01 

.07

.07 

.07 

.05 

.05 

.05

.05 

.07 

.07 

.05 

.05

.05 

.05 

.03 

.03 

.03

.03 

.02 

.02 

.01

.01 

.01

Aug.

0 

0 

0

o

0

o

0

o

0

0

0 

0

o

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0 

0

Minimum Mean

0.01 0.046 

.092 

.200

2.33

.2 .30 

.3 6.86 

.2 .60 

.42 

.1 .19 

.02 .052 

.01 .035 

0 .001 

0 .001

0 .690

01 

01 

01

Sept.

0.01 

.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 

0

ac^e-fee?

2.8 

5.5 

12

1,690

19 

381 

37 

25 

12 

3.1 

2.2 

.06 

.04

500

Mote . Stage-discharge relation affected by backwater Nov. 10 to Dec. 31, Apr. 2-28, May 4-7j 

discharge computed on basis of frequent discharge measurements, weather records, field notes, and 

records for station at H Street, near Lompoc.
SANTA YNEZ RIVER BASIN 141

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

Location. Water-stage recorder, lat. 34°37'40", long. 119°51'40", in San Marcoa Grant, 

J..5 miles upatream from Stuke Canyon Creek and 13 miles eaat of Santa Ynez, Santa 

Barbara County.

Records available.--May 1947 to September 1950 (irrigation seasons only prior to October 

1949).

Extremes. Maximum discharge during year, 500 second-feet Feb. 6 (gage height, 7.53 feet); 

rrom rating curve extended above 17 second-feet by logarithmic plotting, no flow Oct. 

12, 13, 26, 29, Aug. 15-22, Sept. 3, 4.

Remarks. Records good below 20 second-feet and poor above. No regulation or diversion 

above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1 

0 

0

.1 

.1

.1

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

0

.1 

.1 

0

.1 

.1

Nov.

0.1

.1 

.1 

.1 

.1

.1 

.2 

.3 

.5 

1.4

.5 

.4 

.3 

.2 

.2

.2 

.1 

.1 

.1 

.2

.2 

.2 

.2

.1 

.1

.2 

.2 

.2 

.2 

.2

Dec.

0.2 

.2 

.2 

.2 

.2

.2 

.7 

1.6 

2.3 

.8

.5 

.5 

.5 

.5 

.6

.8 

.9 

2.6 

7.0 

3.6

2.5 

2.3 

1.9 

1.8 

1.5

1.4 

1.4 

1.4 

1.4 

1.4 

1.4

Jan.

1.4 

1.4 

1.5 

1.5

1.5

1.5 

1.5 

3.3 

7.7 

4.4

9.4 

11 

6.8 

7.5 

17

9.4 

7.9 

16 

10 

7.5

6.2 

6.2 

6.6 

5.2 

4.2

3.4 

3.4 

6.8 

10 

8.2 

7.2

Feb.

6.S 

6.8 

6.4 

6.6 

29

160 

39 

24 

18 

56

38 

24 

18 

14 

12

11 

10 

9.0 

8.5 

7.5

7.5 

7.2 

7.0 

6.8 

6.6

6.4 

6.4 

6.4

Month

Octo 

Rove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

Bber. ...........-.-.--------------.---.-

lendar year 

ary

ter year 1949-50 ........................

Mar.

6.4 

6.4 

6.2 

6.2 

6.0

5.8 

5.6 

5.6 

5.4 

5.4

5.4 

5.4 

5.4 

5.2 

5.2

5.2 

5.2 

5.2 

5.0 

4.8

4.6 

4.6 

4.4 

7.1 

16

8.8 

9.4 

7.5 

6.4 

6.2 

5.6

Apr.

5.4 

5.0 

4.6 

4.6 

4.6

4.6 

5.2 

18 

31 

23

19 

17 

15 

13 

11

9.0 

7.7 

6.8 

6.2 

5.6

5.2 

5.2 

5.4 

5.4 

5.4

5.2 

5.2 

5.2 

5.0 

4.8

Secondfoot -days

3.1 

7.1 

42.5

-

195.6 

558.9 

191.6 

268.3 

113.1 

32.3 

6.8 

2.6 

5.6

1,427.5

May

4.6 

4.6 

.8 

.8 

.8

.6 

.4 

.4 

.2 

3.9

3.9 

3.9 

4.0 

3.9 

4.0

4.0 

4.0 

4.2 

4.0 

3.5

3.1 

2.9 

3.1 

3.2 

3.2

2.8 

2.5 

2.3 

2.0 

1.9 

1.6

Maximum

0.2 

1.4 

7.0

-

17 

160 

16 

31 

4.8 

1.6 

.4 

.2 

.4

160

June

1.6 

1.6 

1.6 

1.5 

1.5

1.4 

1.4 

1.4 

1.4 

1.3

1.2 

1.1 

1.0 

1.1 

1.1

1.0 

1.0 

1.0 

1.0 

1.0

1.0

.s

.7 

.9 

.9

.9 

.6 

.5 

.5 

.3

July

0.2 

.2 

.2 

.2 

.2

.3 

.3 

.3 

.3 

.4

.4 

.3 

.3 

.3 

.2

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.2 

.1

Minimum

0 

.1 

.2

-

1.4 

6.4 

4.4 

4.6 

1.6 

.3 

.1 

0 

0

0

Aug.

0.2 

.2 

.2

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

0

0 

0 

0 

0 

0

0 

0

.1 

.1

.1

.1 

.1 

.1 

.1 

.1 

.1

Mean

0.10 

.24 

.1.37

-

6.31 

20.0 

6.18 

8.94 

3.65 

1.08 

.22 

.08 

.19

3.91

Sept.

0.1

.1

0 

0

.1 

.1

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.4 

,3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

a. 2 

a. 2 

a. 2 

a.2

Runoff In 

acre-feet

6.1 

14 

84

-

388 

1,110 

380 

532 

224 

64 . 

13 

5.2 

11

2,830

a No gage-height record} discharge Interpolated.
142 SANTA YNEZ RIWR BASIN

Santa Cruz Creek near Santa Ynez, Calif.

Location. Water-stage recorder, lat. 34°34'40", long. lig'SS'SO", in Tequepis Grant, 0.5 

mile upstream from mouth and 10 miles southeast of Santa Ynez, Santa Barbara County. 

Altitude of gage, about 700 feet (from topographic map).

Drainage area. 77.2 square miles.

Records available.--October 1941 to September 1950.

Extremes. Maximum discharge during year, 1,160 second-feet Feb. 6 (gage height, 4.40 

feet); minimum daily, 0.2 second-foot on many days November to January.

1941-50: Maximum discharge not determined, occurred Jan. 22, 1943; minimum daily, 

0.1 second-foot on many days during period January to March 1948.

Remarks. Records good. No diversion above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22is

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.4 .'4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4

.4

.4 

.4 

.4

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Nov.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.4

.4 

.4

.3 

.3 

.3

.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Dec.

0.2 

.3 

.3 

.3 

.3

.3 

.3 

.7 

.4 

.3

.4 

.3

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Jan.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.6 

.2 

.2 

7.0

2.0 

.6 

8.6 

3.4 

.7

.5 

.5 

.5 

.6 

.5

.5 

.5 

.8 

3.2 

2.9 

1.7

Feb.

1.1 

.7

.6 

17

340 

55 

21 

13 

67

60 

24 

16 

12

11

9.3 

8.8 

8.0 

7.3 

6.9

6.5 

6.2 

5.6 

5.6 

5.3

5.3 

5.3 

5.3

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

Mflv

June 

July 

Augu 

Sept

Wa

Lendar year 194S

ter year 1949-50 .......................

Mar.

5.0 

5.0

4.4 

4.4

4.1 

4.1 

4.1 

4.1 

4.1

4.1 

4.1 

4.1 

4.1

3.9 

3.9 

3.6 

3.6 

3.6

3.6 

3.6 

3.6 

5.9

14

8.0 

7.7 

5.9 

5.0 

4.1 

3.9

Apr.

3.6

2.8 

2.8

2.8 

3.0 

14 

45 

28

19 

15 

14 

12

7.3 

5.9 

4.7 

4.1 

3.6

3.4

3.4 

3.9 

4.1 

4.4

4.4 

4.4 

4.4

4.7 

4.1

Secondfoot-days

11.6 

8.2 

8.1

809.6

37.7 

724.5 

148.4 

243.6 

80.8 

40.5 

24.2 

17.5 

12.7

1,357.8

Peak discharge (base. 100 sec.-ffc.J. Feb. 6 (5sOO a.n

187 Beo.-ft.j Apr. 8 111 p.m.) 10B sec. -ft.

May

4.1

 4.1 

4.1

3.4

3.0 

3.0 

2.8 

2.6

£.4 

2.1 

2.1 

2.2

2.6 

2.6 

2.8 

2.8 

2.8

2.4 

2.2

2.1 

2.1 

2.2

2.1 

1.8 

1.5 

1.5 

1.4 

1.4

Maximum

0.4 

.4

.7

70

8.6 

340 

14 

45 

4.1 

1.5 

1.2 

.7 

.5

340

June

1.4

1.4 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

. 1.3

1.4 

1.4 

1.4 

1.4.

1.5

1.5 

. 1.5 

1.5 

1.4 

1.3

1.3 

1.3 

1.2 

1.2 

1.2

July

1.2

1.0 

1.0

1.0 

1.0 

.9 

.9 

.9

.8 

.8 

.8

.7

.7 

.7 

.7 

,7 

.6

.6 

.6 

.6 

.6 

.6

.6 

.7 

.7 

.7 

.7 

.7

Aug.

0.7 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.5

.5 

.5 

.6 

.6 

.6

'.5 

.5 

.5 

.4 

.4 

.4

Sept.

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.5 

.5 

.4 

.4

.4 

.4 

.4

.5 '.5

.5 

.4 

.4

.5 

.5

Mini-nun, Mean %£*£

0.3 0.37 23 

.2 . .27 16 

.2 .26 16

.2 2.22 1,610

.2 1.22 75 

.6 25.9 1,440 

3.6 4.79 2194 

2.8 8.12 483 

1.4 2.61 160 

1.2 1.35 80 

.6 .78 48 

.4 .56 35 

.4 .42 25

.2 3.72 2,700

.) 1,160 sec. -ft. j Feb. 10 (3:30 p.m.)|
SNATA YNEZ RIVER BASIN 143

Santa Agueda Creek near Santa Ynez, Calif.

Location.--Water-stage recorder, lat. 34°35'40", long. 120°01'30", in Canada de los Pinos 

urant, at highway bridge 0.8 mile upstream from mouth, and 3.5 miles southeast of Santa 

Ynez, Santa Barbara County. Altitude of gage, about 520 feet.

Drainage area.--56.4 square miles.

Records available.--January 1941 to September 1950.

Extremes.--Maximum discharge during year, 225 second-feet Feb. 6 (gage height, 1.94 feet); 

no flow during part of each day Aug. 24 to Sept. 30.

1941-50: Maximum discharge, 1,580 second-feet Mar. 3, 1941 (gage height, 4.60 feet); 

no flow July 30 to Aug. 18, 1949, and during part of each day Aug. 24 to Sept. 30, 1950.

Remarks. Records fair. Small diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

>e0.05 

. e.06

Nov.

 eO.06

. .1'

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Dec.

0.1 

.1 

.2 

.1 

.2

.2 

.2 

.3

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.3 

.3

Jan.

0.3 

.3 

.3 

 5 

.3

.3 

.3 

.3 

.3 

.3

.4 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Feb.

0.2 

.2

.1 

.1 

.1

30 

.5 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.3 

.3

.2 

.2 

.3

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebn 

Marc 

Apr! 

Mflv

June 

July 

Augu 

Sept

Wa

nber. ...................................

lendar year 1949 

iry

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

ter year 1949-50 .......................

Peak discharge (base, 50 sec. -ft.) . Feb.

Mar.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.3

Apr.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

.2 

.2 

.2 

.2

::.2 

.3 

.3 

.3

.2 

.2 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

Secondfoot-days

1.71 

2.36 

5.4

54.60

8.3 

36.4 

6.3 

6.9 

3.45 

3.25 

4.4 

2.46 

.30

81.23

6 (8:30 a.m.

May

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.1

.1 

.1 

.1 

.1 

.1

e.05

.1

.1

> e.05

Maximum

0.1 

.3

.4

.4 

30 

.3 

.3 

.2 

.2 

.3 

.1

30

June

^eo.05

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 

.1 

.2 

.2

.2 

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

July

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1 

.1

Minimum

0.1

0

.2

.1 

1 .2 

.2

.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

e.02

Mean

0.055 

.079 

.17

.150

.27 

1.30 

.20 

.23 

.111 

.108 

.14 

.079 

.010

.223

Sept.

 eO.Ol

Runoff in 

acre-feet

3.4 

4.7 

11

108

16 

72 

12 

14 

6.8 

6.4 

8.7 

4.9 

.6

160

224 sec. -ft.

e Dally discharge less than (5.1 sec. -ft.
144 SANTA YNEZ RIVER BASIN

La Zaca Creek at Buellton, Calif.

Location. Water-stage recorder, lat. 34°36'35", long. 120 0 11'15", in San Carlos de Jonata 

urant, at culvert on State Highway 150 in Buellton, Santa Barbara County. Altitude of 

gage, about 340 feet.

Drainage area. 38.7 square miles.

Records available.--January 1941 to September 1950.

Extremes. Maximum discharge during year, 88 second-feet Dec. 8 (gage height, 3.34 feet); 

no now during most of year.

1941-50: 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. Record fair. Waste water from cafe nearby not included in these records when 

there is no natural flow.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

O 

0 

0 

.08

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

O 

0 

0 

0 

0

0 

2.9 

7.1 

0 

0

0 

0 

0 

0 

.01

0 

.02 

0 

.02 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

o 

0 

0 

0

0 

0 

.06 

0 

O

.2 

.02 

O 

.3 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.03 

0 

0 

0

Feb.

0 

0 

0 

0 

.2

.6 

0 

0 

0 

.06

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

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

ter year 1949-50 .......................

Mar.

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.06 

0

0 

0 

0 

0 

0 

0

Apr.

0 

0 

O 

0 

0

0 

0 

.05 

.03 

0

O 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Seeondfoot-days

0 

.08 

10.05

30.56

.61 

.86 

.06 

.08 

0 

0 

0 

0 

0

11.74

May

Maximum

0 

.08 

7.1

12

.3 

.6 

.06 

.05 

0 

0 

0 

0 

0

7.1

June July Aug. Sept.

Mini,.,. Mean % %£

00 0 

0 .003 .2 

0 . .324 20

0 .084 ! 61

0 | .020 1.2 

0 .031 1.7 

0 .002 .1 

0 ' .003 .2 

00 0 

00 0 

00 0 

00 0 

00 0

0 .032 23

Peak discharge (base. 10 sec.-ft.). Dec. 8 (3 a.m.) 88 sec.-ft.
SANTA YNEZ RIVER BASIN 145

Salsipuedes Creek near Lompoc, Calif.

Location.--Water-stage recorder, lat. 34°34'55", long. 120°24'3S", near northern edge of 

san Julian Grant, at highway bridge on Jalama road, Just downstream from El Jaro Creek 

and 5 miles southeast of Lompoc, Santa Barbara County. Altitude of gage, about 230 

feet (from topographic map).

Drainage area. 46.6 square miles.

Records available. January 1941 to September 1950.

Extremes.--Maximum discharge during year, 513 second-feet Feb. 6 (gage height, 5.76 feet); 

minimum daily, 0.04 second-foot Aug. 1-3, Sept. 24-30.

1941-50: Maximum discharge, 7,190 second-feet Mar. 3, 1941 (gage height, 19.95 

feet), from rating curve extended above 3,800 second-feet by logarithmic plotting; 

minimum daily, less than 0.1 second-foot on many days in some years.

Remarks. Records fair. Small diversions for irrigation above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

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.

eO.08 

e.09

Nov.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

1.6

.4 

.2 

.2 

.1

.1

.1 

.1 

.1 

.1 

.1

.2 

.2

.2 

.2

.1

.2 

.2 

.2

.2 

.2

Dec.

0.2 

.2 

.2 

.3 

.3

.3 

16 

44 

2.8 

al.5

a. 8 

a. 6 

a. 5 

.4 

2.5

1.5 

.9 

1.6 

3.0 

1.4

.6 

.5 

.5 

.5 

.5

.4 

.5 

.5 

.6 

.6 

.6

Jan.

0.7 

.7 

.7 

.8 

.8

.8 

.8 

15 

5.4 

2.0

26 

9.3 

4.5 

32 

10

3.9 

3.1 

2.6 

2.2

1.7

1.6 

1.5 

1.5 

1.5

1.3

1.1 

1.1 

2.6 

2.9

1.6 

1.4

Feb.

1.4 

1.2 

1.1 

1.1 

6.2

180

21 

9.6 

6.6 

13

8.6 

5.2 

4.3 

3.9 

3.5

3.3 

3.3 

3.0 

2.8 

2.6

2.6 

2.5 

2.5 

2..S 

2.2

2.1 

2.1 

2.1

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 ...

ter year 1949-50 .......................

Mar.

2.5 

2.8 

2.8 

2.8 

2.6

2.3 

2.2 

2.1 

2.1 

2.0

1.8

1.7 

1.6 

1.6 

1.6

1.5 

1.5 

1.5 

1.5 

1.5

1.4

1.4 

1.4 

7.1 

5.5

2.3 

1.8

1.5

1.4 

1.4 

1.3

Apr.

1.3 

1.3 

1.0 

1.0 

.8

.8 

.9

1.3 

1.7 

1.0

.S 

.8

.7 

.6 

.6

.6 

.5 

.5 

.5 

.5

.6 

.S 

.6 

.6 

.6

.7

!e

.6 

.6

May

0.6 

.6 

.6 

.5 

.6

.5 

.4 

.4

.4 

.4

.3 

.4 

.4 

.4 

.5

.6 

.6 

.5 

,4

.3 

.4 

.4 

.4 

.3

.3 

.3 

.2 

.2*2 

.2

Second- Maxinm, 

foot -days

2.64' 

5.9 1.6 

84.8 44

859.70 270

141.1 32 

300.1 180 

66.5 7.1 

23.6 1.7 

12.7 .6 

3. 28 .2 

1.95 .1 

1.73 .06 

1.56 .07

645. S6 180

June

0.2 

.2 

.2 

.2 

.2

.1 

.1

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

il 

.1

.07 

.06 

.05 

.05 

.05

July

0.05 

.05 

.05 

.05 

.05

.05 

.05 

.05

.1 

.1

.1 

.07 

.07 

.07 

.07

.07 

.07 

.07 

.07 

.07

.07 

.06 

.06 

.06 

.06

.05 

.05 

.05 

.06 

.05 

.05

Aug.

0.04 

.04 

.04 

.05 

.05

.05 

.05 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.05 

.05 

.05

Minimum Mean

0.085 

0.1 .20 

.2 2.74

Sept.

0.05 

.05 

.05 

.05 

.05

.06 

.06 

.07 

.06 

.06

.05 

.05 

.05 

.06 

.06

.06 

.05 

.06 

.06 

.06

.06 

.05 

.05 

.04 

.04

.04 

.04 

.04 

.04 

.04

Runoff in 

acre-feet

5.2 

12 

168

2.36 j 1,700

.7 4.55 

1.1 10.7 

1.3 2.15 

.5 .79 

.2 .41 

.05 .109 

.05 .063 

.04 .056 

.04 .052

1.77

Peak discharge (base, 100 sec.-ft.J . Dec. 7 (11:30 p.m.) 240 sec. -ft.: Jan. 11 (10 a.m

280 

595 

132 

47 

25 

6.5 

3.9 

3.4 

3.1

1,280

.) 141 aec.

ft.j Jan. 14 (4:15 p.m.J 124 sec.-ft.j Feb. 6 (4 a.m.) 513 sec.-ft.

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

e Daily discharge less than 0.1 sec.-ft.
146 SAN ANTONIO CREEK BASIN

San Antonio Creek at Harris, Calif.

Location. Water-stage recorder, lat. 34°45'45", long 120°25'40", in Los Alamos Grant, 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 1950.

Extremes.--Maximum discharge during year, 5.0 second-feet Feb. 6 (gage height, 3.18 feet); 

no now during most of year.

1941-50: Maximum discharge, 1,880 second-feet Mar. 3, 1941 (gage height, 10.1 feet 

at site and datum then in use), from rating curve extended above 480 second-feet by 

"logarithmic plotting; no flow during a large part of each year.

Remarks.--Records fair. Water was pumped from wells above station for irrigation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

O 

0 

0

o

0 

0 

0

o

0 

0

o

.2

O

0 

0 

0 

0 

0

0 

0

o

0 

0

0 

0

o

0 

0 

0

Feb.

0 

0 

0 

0 

0

1.6 

.2

O 

0

o 

o

0

o 

o

0 

0

o 

o 

o

0 

0

o

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

o

0

.1

0

0 

0 

0 

0 

0

Apr.

Secondfoot -days

0

0 

0

48.2

.2 

1.8 

.1 

0 

0 

0 

0 

0 

0

2.1

May

Maximum

0 

0 

0

19

.2 

1.6

o'

0 

0 

0 

0 

0

1.6

June July Aug. Sept.

Minlr i* Mean Runoff in MinlE-m Mean , aore _ feet

O 

0 

0

0

0 

0

g0 

0 

0 

0 

0

0

0 0 

0 0 

0 0

.13 96

.01 .4 

.06 3.6 

0 .2 

0 0 

0 0 

0 0 

0 0 

0 ' 0 

0 0

.01 4.2.

Peak discharge (base. 5 sec.-ft.). Feb. 6 (12:15 a.m.) 5.0 sec.-ft.
SANTA MARIA RIVER BASIN 147

Cuyama River near Ventacopa, Calif.

Location.--Water-stage recorder, lat. 34°41'10", long. 119°21'30", in NE^SW^ sec. 19, T. 

7 N., R. 23 W., at Ozena Bridge on U. S. Highway 399, 4.5 miles downstream from confluence of Dry Canyon arid Alamo Creek and 12 miles southeast of Ventucopa, Santa Barbara County. Altitude of gage, about 3,500 feet.

Drainage area. 90 square miles.

Records available.--November 1944 to September 1950. 

June 1943 to September 1944.

Miscellaneous discharge measurements

Extremes.--Maximum discharge during year, about 300 second-feet Dec. 8 (gage height, 4.97 

feet7; minimum daily, 0.1 second-foot on many days during July to September.

1944-50: Maximum discharge probably occurred Mar. 30, 1946 (data inadequate for 

accurate determination of magnitude); maximum stage uncertain; minimum daily discharge, 

0.1 second-foot on many days during 1949, 1950.

Remarks.--Records poor. No regulation; only minor diversions above station for irrigation. 

Revisions (water years).--W 1151: 1946(M).

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.2 

.4 

.4 

.4 

.4

.4. 

.4 

.4 

.4 

.8

a. 8

a. 8 

a. 8 

a. 8 

.8

.8

.3 

.8 

.8 

.8

.8 

.8 

.6 

.6 

.6 

.6

Nov.

0.6 

.6 

.8 

.8 

.8

.8 

.8 

.8 

.8 

3.7

al.5 

a. 8 

a. 8 

a. 8 

a. 8

a. 8 

a. 8 

.8 

.8 

.9'

.9

.8 

.8 

.8 

.9

.8 

a. 8 

a. 8 

a. 8 

a. 8

Dec.

80 8 

a 8 

a 8 

a 8 

8

.8

11 

ISO 

alO 

a2

a2

a2 

a2 

a2 

a2

al.5 

a2 

a3 

a4 

1.6

1.4 

1.2 

1.2 

1.2 

1.4

1.4 

1.4 

1.6 

1.6 

1.6 

2.1

Jan.

2.1 

2.4 

2.4 

1.4 

1.2

1.2 

1.2 

21 

alO

1.8

d3 

d2 

d2 

(J2.5 

d3

d4.5 

72 

24 

a5 

a2

a2

al 

al 

al 

al

al 

1.0 

11 

7.5 

al 

al

Feb.

al 

al 

al 

al

1.8

119 

a5 

a4 

3.7 

22

28 

a5 

a4 

33 

a3

a2.5 

a2.5 

a2.5 

a2.5 

a2.5

a2.5 

a2.4 

2.4 

3.0 

3.0

3.0 

2.7 

a2.7

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194 3 . .... ..... ........

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

ter year 1949-50 .......................

Mar.

a2.7 

a2.7 

a2.7 

2.7 

2.7

2.4 

2.4 

2.7 

a2.7 

a2.5

a2.5 

a2.5 

a2.5 

a2 ' a2

a2 

a2 

a2 

al.6 

1.6

1.6 

1.8 

1.8 

d8.5 

d20

d20 

a4.0 

a2.5 

al.5 

al.5 

al.3

Apr.

al.3 

al.2 

al.2 

al.2 

1.2

1.2 

al.2 

8.9 

2.8 

a2.1

2.1 

2.1 

1.8 

1.6 

1.8

1.6 

1.6 

1.6 

1.6 

1.6

1.6

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

Secondfoot-days

17.2 

27.5 

186. 0

639.6

193.2 

236.7 

111.4 

55.7 

25.2 

13.0 

3.9 

4.0 

8.9

882.7

May

1.3 

.9 

.9 

.9 

.9

r.o

1.0 

1.0 

1.2 

1.2

1.0 

.9 

.8 

,8 

.8

.6 

.6 

.8 

.9 

.9

.8 

.6 

a. 6 

a. 6

a. 6

a. 6 

a. 6 

a. 6 

a. 6 

a. 6 

a. 6

Maximum

0.8 

3.7 

120

120

72 

119 

20 

8.9 

1.3 

.6 

.2 

.2 

.4

120

June

ao.6 

a. 6 

a. 6

a. 6 

a. 6

.6 

.6 

.5 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.2 

.2

July

0.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.2 

.2

.2 

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

Minimum

0.2 

.6 

.8

.1

1.0 

1 

1.3 

1.2 

.6 

.2 

.1 

.1 

.1

.1

Aug.

0.1 

.2 

.2 

.2 

.2

.2 

.2

.2 

.2 

.2

.1 

.1 

,1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Mean

0.55 

.92 

6.00

1.75

6.23 

8.45 

3.59 

1.86 

.81 

.43 

.13 

.13 

.30

2.42

Sept.

0.1 

.1

.1 

a.l 

a.l

a. 2 

a. 2 

a. 2 

a. 3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.4 

.4 

.4 

.4

.4 

.4

.4 

.4 

.4

.4 

.3 

.3 

.4 

.4

Runoff in 

acre-feet

34 

55 

369

1,270

383 

469 

221 

110 

50 

26 

7.7 

7.9 

18

1,750

Peak discharge (base. SO sec.-ft.). Dec, 8 (5s 

121 sec.-ft^j Feb. 6 (3:20 a.m.) 256 sec.-ft.

30 a.m.) about 300 sec.-ft.j Jan. 17 (4:30 p.m.)

a No gage-height record] discharge Interpolated or computed on basis of recorded range In stage, 

wearher. records, and normal receaalon curve.

d Gage-height doubtful] discharge computed on basis of weather records and probable recession curve.
148 SANTA MARIA RIVER BASIN

Cuyama River near Santa Maria, Calif.

Location. Water-stage recorder, lat. 35°00'50", long. 120°16'45", in Suey Grant, at highway tridge 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 installation 150 feet downstream at different datum 

has been used since Feb. 3, 1945.

Drainage area. 912 square miles.

Records available. December 1929 to September 1950.

Average discharge. 20 years (1930-50), 22.3 second-feet.

Extremes.--Maximum discharge during year, 150 second-feet Feb. 6 (gage height, 3.24 feet); 

no now Oct. 1 to Dec. 7, Dec. 9, 10.

1929-50: Maximum discharge, 17,300 second-feet Mar. 3, 1938 (gage height, 16.6 

feet), by slope-area method; no flow for long periods in some years.

Remarks.--Records good. Some water for irrigation pumped from wells in valley above staDlscnarge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

2& 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

.2 

0 

0

1.0 

3.2 

.5 

.1 

.1

.1 

.1 

.1 

.2 

.6

.4 

.4 

.4 

.4 

.4

.4 

.4

.4

.4 

.7 

.8

Jan.

1.1 

1.6 

1.7 

1.6

2.0 

1.9 

3.4 

6.3 

4.7

6.6 

7.1 

9.6

13 

14

6.4 

6.8 

5.8 

5.6 

5.3

7.9 

5.6 

5.3 

5.6 

6.4

6.4 

6.1 

10 

11 

9.4 

8.6

Feb.

7.1 

6.8 

6.5 

6.3 

11

78 

35 

38 

28 

22

19 

15 

16 

14 

12

9.8 

9.8 

9.4 

9.0 

9.0

8.6 

7.8 

7.8 

7.5 

7.5

7.5 

7.5 

6.4

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

 tav

June 

July 

Augu 

Sept

Wa

her. ....................................

Itfndar year 194J

St. .....................................

ter year 1949-50 .......................

Mar.

7.5 

6.1 

5.3 

6.1 

6.1

4.8 

4.8 

4.8 

5.0 

4.8

4.5 

4.2 

5.0 

4.8 

4.0

4.5 

4.8 

4.2 

3.6 

4.0

3.2 

3.2 

3.4 

14 

21

13 

13 

6.6 

5.6 

5.0 

4.8

Apr.

4.8 

3.8 

3.8 

3.0 

2.8

2.3 

2.4 

10 

26

19

14

10 

9.4 

6.1 

5.0

4.5 

4.2 

3.6 

3.2

2.8

2.4 

2.0 

1.7

1.7 

1.7

1.7 

1.7 

1.5 

1.5 

1.4

Secondfoot-days

0 

0 

11.3

1,037.~20

187.8 

422.3 

191.7 

158.0 

31.3 

11.5 

6.2 

2.37 

.70

1,023.17

way

1.4 

1.5 

1.7 

1.6 

1.4

1.3 

1.3 

1.4 

1.6 

1.3

1.2 

1.3 

1.2 

.9 

.8

.9 

.8 

.8 

.8 

.7

.8 

.9 

1.0 

.8 

.7

.6 

.6 

.6 

.6 

.4 

.4

Maximum

0 

0 

3.2

24

14 

78 

21 

26 

1.7 

.6 

.2 

.2

78

June

0.5 

.5 

.5 

.5 

.5

.6 

.6 

.4 

.4

.4

.4 

.4 

.3 

.3 

.3

.4 

.4 

.3 

.3 

.3

.3 

.4 

.4 

.5 

.4

.3 

.3 

.2 

.2 

.2

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

Minimum

0

0 

0

0

1.0 

6.3 

3.2 

1.4 

.4 

.2 

.2

0

Aug.

o.a

.2 

.2

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

 e.05 

. e.04

Mean

0 

0 

.36

2.84

6.06 

15.1 

6.18 

5.27 

1.01 

.38 

.20 

.076 

.023

2.80'

Sept.

> eO.04 

, e.02

. e.Ol

Runoff In 

acre-feet

0 

0 

22

2,060

372 

838 

380 

313 

62 

23 

12 

4.7 

1.4

2,030

Peak discharge (base, 200 see.-ft.J. Ho peak above base.

e Dally discharge less than" "OYT Bee. -ft.
SANTA MARIA RIVER BASIN 149

Santa Maria River at Guadalupe, Calif.

Location. Water-stage recorder, lat. 34°58'25", long. 120°34'15", In Quadalupe 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 1950.

Extremes. Maximum discharge during year, 3,600 second-feet Feb. 7 (gage height, 5.10 feet); 

no now except on Feb. 6-8.

1941-50: Maximum discharge, 14,700 second-feet Mar. 5, 1941 (gage height, 8.00 

feet); no flow Jan. 19, 1947, to Feb. B, 1950, and during several months each of the 

other years.

Remarks. Records poor. Several small surface diversions and extensive pumping from ground 

water for irrigation in basin above station and considerable losses of surface flow by 

Infiltration to ground-water. During wet years when water table is high, returns from 

ground water in lower part of basin cause surface flow.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12

13 

14

15

16 

17 

18 

19

20

21 

22

23 

24 

25

26 

27 

28 

29

30 

31

Oct. Nov. Dec. Jan. Feb.

0 

0

o 

o 

o

90 

1,150 

2 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0

o

Month

Octo 

Hove 

Dece

ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

mber. ...................................

lendar year 194 

ary

h. ......................................

St......................................

ter year 1949-50 .......................

Mar. Apr.

Secondfoot-days

0

o 

o

0

0 

1,242 

0 

0 

0 

0 

0 

0 

0

1,243

May

Maximum

0 

O 

Q

0

0 

1,150 

0 

0 

O 

0 

0 

O 

0

1,150

June July

Minimum

O 

0 

0

0

0 

0 

0 

0 

0 

0 

0 . 

0 

0

0

Aug.

Mean

0 

0 

0

0

o

44.4 

0 

0 

0 

0 

0 

0 

0

3.4

Sept.

Runoff In 

acre-feet

0 

0 

0

0

0 

2,460 

0 

0 

0 

0 

0 

0 

0

2,460

Peak discharge (base. 100 sec.-ft.). Peb. 7 (5:30 a.m.) 3,600 sec.-ft. 

--S07481 O - 52 - 11 '
150 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 high- 

 way Dridge 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 1950.

Extremes. Maximum discharge during year, 614 second-feet Feb. 6 (gage height, 4.16 feet); 

minimum daily, less than 0.1 second-foot during several months.

1943-50: Maximum discharge, 700 second-feet Feb. 2, 1945 (gage height, 4.34 feet); 

minimum daily, less than 0.1 second-foot on many days in 1949, 1950.

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

fair. No diversion above station

Discharge, in second-feet, water year October 1949 to September 1950

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.

o.ol 

> e.os

> 6.05 

e.07

Nov.

 eO.07

.2

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

 e.08

.1

.1

.09 

.1 

.1 

.08

Dec.

eO.09

.1 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Jan.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.3 

.2 

.5 

.4

.4 

.4 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.4 

.4 

.3 

.3

Feb.

0.3 

.3 

.3 

.3 

10

271 

20 

1.2 

.9 

.9

.9 

.9 

.8 

.8

.6

.6 

.5 

.5 

.5 

.4

.4 

.3 

.3 

.3 

.3

.3 

.2 

.2

1 

Month

Octo 

Hove 

Dece

Ca

Janiii 

Pebr 

Marc 

Apr!

June 

July 

Augui 

Sept

Va

Lendar year 1949 

w*y

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

ber year 1949-50 .......................

Peak discharge (base. 5 sec. -ft. L Feb. 6

Mar.

0.3 

.2 

.2 

.2 

.2

a. 2

a. 2 

a. 2 

a. 2

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.1

.1 

.1 

.1 

17 

1.5

.6 

.4 

.4 

.4 

.4 

.4

Apr.

0.4 

.3 

.3 

.3 

.3

.3 

.4 

35 

34

14

2.6 

1.0 

.4 

.4 

.4

.3 

.2

.2 

.2 

.2

.2 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.3 

.2

Secondfoot-days

1.49 

2.68 

5.85

81^17

8.3 

314.0 

25.4 

93.7 

6.7 

5.28 

2.85 

2.68 

4.68

473.70

May

0.2 

.3 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Maximum

0.2 

.3

1.4

.5 

271 

17 

35 

- .3 

.2 

.1 

.1 

.2

271

June

6.2 ' 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 .2 '

.2 

.2 

.2 

.2 

.2

.2 ' 

.2 

.2 

.2 

.2

.1. 

.1 

.2 

.2 

.2

.1

.1 

.1 

.09 

.09

July

> eO.09

.1 

.1 

.1 

.1 

.1

.1 

.09 

.1 

.1 

.09

.1

.1 

.1 

.1 

.1

.1 

.1

e.08

Minimum

0.01

-

.2 

.2 

.1 

.2 

.2 

.1

-

Aug.

eO.08

.1

.1 

.1 

' .1 

.1 

.1

.1 

.1 

.1

.1

e.08

Mean

0.048 

.089 

.189

.222

.27 

11.2 

.82 

3.12 

.22 

.18 

.092 

.086 

.156

1.30

Sept.

eO.08

.1 

.2 

.1 

.1

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

.2 

.2 

.2 

.2

.2 

.1 

.1 

.2 

.2

Runoff in 

acre-feet

3.0 

5.3 

12

161

16 

623 

50 

186 

13 

10 

5.7 

5.3 

9.3

939

(f a.m. 614 sec.-ft.j Mar. 24 (4s20 p.ra.7" 312 aeo.^-ft.j

Apr* 8 (4 p.m.y 56T sec.-TET"

d Doubtful gage-height record; discharge interpolated, 

e Daily discharge less than 0.1 sec.-ft.
SANTA MARIA RIVER BASIN 151

Huasna River near Santa Maria, Calif.

Location. Water-stage recorder, lat. 35°01'20", long. 120°19'20", in Suey Grant, 0.5 mile

 upstream from mouth and 8 miles northeast of Santa Maria, Santa Barbara County. Altitude of gage, about 600 feet. Temporary gages at different datum about 400 feet downstream used continuously since Mar. 23, 1944.

Drainage area. 119 square miles.

Records available.--December 1929 to September 1950.

Average discharge. 20 years (1930-50), 20.4 second-feet.

Extremes.--Maximum discharge during year, about 900 second-feet Feb. 6 (gage height, 4.72

 feet at temporary gage currently in use, from rating curve extended above 70 secondfeet by logarithmic plotting; no flow during several months.

1929-50: Maximum discharger, 11,400 second-feet Feb. 11, 1938 (gage height, 11.26 

feet), by slope area method; no flow during parts of several years.

Remarks. Records good. No diversion above station.

Discharge, in second-feet, water year October 1949 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 

26 

29 

30 

31

Oct. Nov. Dee.

0 

O 

O 

0 

O

O 

O 

0 

O 

O

O 

0 

0 

O 

0

0 

0 

0 

0 

.3

.5 

.5 

.5 

.5 

.4

.4 

.5 

.5 

.5 

.5 

.5

Jan.

O.6 

.7 

.8 

.8 

.8

.9 

1.0 

1.6 

1.4 

1.3

2.2 

2.1 

1.7 

4.3 

3.9

2.3 

2.3 

1.8 

1.7 

1.6

1.6 

1.6 

1.4 

1.3 

1.3

1.2 

1.2 

2.7 

2.3 

1.8 

1.7

Feb.

1.6 

1.4 

1.3 

1.7 

2.9

381 

144 

5O 

29 

24

29 

24 

22 

15 

13

11 

9.2 

8.1 

7.1 

5.9

4.8 

4.3 

3.8 

3.4 

3.0

3.0 

2.6 

2.6

Month

Octo 

Hove 

Dece

Ca

Janu 

PebP 

Hare 

Aprl 

Hay

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

ter year 1949-5O .......................

Mar.

a2.5 

a2.4 

a2.4 

a2.3 

a2.3

a2.3 

a2.3 

a2.2 

a2.2 

a2.1

a2.1 

a2.1 

2.1 

2.1 

2.1

2.0 

2.0 

1.8 

1.8 

1.8

1.7 

1.7 

1.7 

6.1 

16

12 

9.5 

8.1 

7.4 

6.8 

6.5

Apr.

6.2 

5.6 

5.4 

5.1 

4.5

3.2

4.3 

6.7

19 

20

16 

14 

9.0 

8.5 

8.1

7.1 

6.2 

5.6 

4.8 

4.3

4.0 

4.6 

3.9 

3.2 

2.8

2.6 

2.6 

2.4 

2.4 

2.3

Secondfoot -days

0 

0 

5.6

190". 1

51.9 

808.7 

120.4 

194.4 

53.0 

29.5 

3.4 

O 

0

1,266.9

May

2.3 

2.3 

2.1 

2.1 

2.0

2.0 

1.8 

1.7 

1.7 

1.6

1.6 

1.6 

1.5 

1.7 

1.7

1.8 

1.8- 

1.7 

1.6 

1.7

1.6 

1.7 

1.8 

1.7 

1.6

1.6 

1.4 

1.4 

1.3 

1.3 

1.3

Maximum

O 

,O 

.5

5.9

4.3 

381 

16 

20 

2.3 

1.4 

.5 

0 

O

381

June

1.3 

1.4 

1.4 

1.3 

1.3

1.3 

1.3 

1.2 

1.1 

1.0

.9 

.9 

.9 

.8 

.8

.8 

.8 

.8 

.8 

.8

.7 

.8 

1.0 

1.1 

1.1

1.0 

.9 

.8 

.6 

.6

July

0.5 

.2 

.3 

.2 

.2

.1 

.1 

O 

O 

.2

.2 

.2 

.2

.1 

.1

0 

.1 

.1 

.2 

.2

.1 

.1 

O 

O 

0

o

0

0

o

0

o

Minimum

o 

0 

0

o

.6 

1.3 

1.7 

2.3 

1.3 

.6 

O 

O 

0

0

Aug.

Mean

0 

0 

.18

.52

1.67 

28.9 

3.88 

6.48 

1.71 

.98 

.11 

O 

0

3.47

Sept.

Runoff In 

acre-feet

0 

0

11

377

103 

1,600 

239 

386 

105 

59 

6.7 

0 

0

2,510

Peak discharge (base. 10 sec.-ft.). Feb. 6 (11 a.m.) about 900 see.-ft.; Mar. 25 (12 m.) 20 sec.- 

ft.; .;Apr.9 (1:20 p.m.) 139 see.-ft.j Apr. 22 (11:20 p.m.) 38 see.-ft.

a Ho gage-height record; discharge interpolated
152 SANTA MARIA RIVER BASIN

Sisquoc River near Sisquoc, Calif.

Location.--Water-stage recorder, lat. 34°50'15", long. 120°10'10", in SEi sec. 20, T. 9 

M., R. 31 W., 2 miles upstream from La Brea Creek and 7 miles east of Sisquoc, Santa 

Barbara County. Datum of gage is 620.60 feet above mean sea level, datum of 1929 

% (Corps of Engineers bench mark). A temporary gage at different datum, about 1,000 feet 

upstream, was used throughout the year except for period Feb. 6 to Mar. 10, when the 

permanent gage was used.

Drainage area. 290 square miles.

Records available. October 1943 to September 1950. December 1929 to September 1933 at 

site of permanent gage, but below diversions; records comparable for high discharge 

only.

Extremes. Maximum discharge during year, 1,210 second-feet Feb. 6 (gage height, 3.14 feet), 

from rating curve extended above 340 second-feet by logarithmic plotting; minimum daily, 

0.7 second-foot Nov. 3-5, 18-23.

1930-33, 1943-50: Maximum discharge, 6,250 second-feet (including diversions) Feb. 

8, 1932 (gage hsight, 6.17 feet); minimum not determined (previously published minima 

did not inclu le diversions); minimum daily since 1943, 0.4 second-foot Sept. 14, 19, 

21, 1947.

Maximum discharge known, 11,000 second-feet Mar. 2, 1938 (gage height, 8.1 feet, 

from high-water mark in permanent gage well), from rating curve extended above 2,800 

second-feet.

Remarks. Records good. Records show discharge of Sisquoc River above all diversions, and 

above area of percolation losses.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

3 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

0.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

.9 

.9

.9 

.9 

.9 

.8 

.8 

.8

Nov.

0.8 

.8 

.7 

.7 

.7

.8 

.9 

1.0 

1.0 

1.8

1.2 

1.0 

1.0 

.9

.8

.8 

.8 

.7 

.7 

.7

.7 

.7 

.7 

.8 

.8

.9 

1.0 

1.0 

1.0 

1.0

Dec.

1.0 

1.0 

1.2 

1.2 

1.3

1.6 

1.6 

2.6 

2.0 

1.6

1.4 

1.4 

1.4 

1.4

1.4

1.6 

1.6 

1.6 

l.S

1.8

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6 

1.6

Jan.

1.6 

1.6 

2.0 

2.2 

Z.Z

2.2 

2.2 

2.2 

2.4 

2.4

2.6 

2.4 

2.4 

2.6 

2.4

2.4 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.0 

2.0 

2.0

1.6 

1.6 

1.8 

1.8 

1.8 

1.8

Feb.

1.8 

1.8 

1.6 

1.6 

1.8

525 

323 

125 

63 

52

136 

82 

52 

40 

32

27 

25 

23 

21 

18

17 

16 

16 

14 

13

13 

13 

12

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

nber. ...................................

lendar year 194S 

ary.

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

Bt. .....................................

ter year 1949-50 .......................

Mar.

12 

12 

11

10 

10

10 

9.5 

9.0 

9.0 

9.0

10 

11 

11 

11 

10

10 

9.3 

8.7 

8.7 

8.7

8.7 

7.5 

7.5 

10 

23

23 

17 

17 

16 

15 

13

Apr.

12 

11 

11 

10 

10

10 

10 

16 

115 

72

52 

50 

46 

45 

36

30 

28 

25 

23 

22

20 

19 

18 

16

16

16 

16 

15 

14 

14

Secondfoot -days

29.0 

26.4 

48.1

1,888.8

65.4 

1,666.6 

357.6 

798 

229.5 

101.7 

63.2 

50.0 

34.8

3,470.3

May

13 

13 

13- 

13 

12

11 

8.7 

8.7 

8.7 

8.1

7.5 

7.0 

6.6 

6.6 

6.1

6.1 

6.1 

6.6 

6.1 

5.6

5.6 

5.6 

5.6 

5.6 

5.0

4.8 

4.5 

4.1 

4.8 

5.2 

5.2

Maximum

1.0 

l.S 

2.6

93

2.6 

525 

23 

115 

13 

4.8 

2.2 

2.2 

1.3

525

June

4.8 

4.5 

4.5

4.1 

4.1

3.8 

3.8 

3.8 

3,8 

3.8

3.5 

3.5 

3.5 

3.5 

3.2

3.2 

3.2 

3.2 

3.2 

3.2

3.2 

3.2 

2.9 

2.9 

2.9

2.6 

2.6 

2.6 

2.4 

2.2

July

2.2 

2.2 

2.0 

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.2

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

1.8 

1.8 

1.8

2.0 

2.0 

2.0 

2.0 

2.0

2.2 

2.2 

2.2 

2.2 

2.2 

2.2

Minimum

0.8 

.7 

1.0

.7

1.6 

1.6 

7.5 

10 

4.1 

2.2 

1.8 

1.2 

1.0

.7

Aug.

2.2 

2.0 

. 2.0 

2.0 

2.0

2.0

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.4 

1.3 

1.3 

1.3 

1.2

1.2 

1.3 

1.3 

1.3 

1.3 

1.3

Mean

0.94 

.88 

1.55

5.17

2.11 

59.5 

11.5 

26.6 

7.40 

3.39 

2.04 

1.61 

1.16

9.51

Sept.

1.3 

1.3 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.0

1.0 

1.0 

1.0 

1.0 

1.2

1.2 

1.3 

1.3 

. 1.3 

1.3

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.0 

1.0 

1.0 

1.0

Runoff in 

acre-feet

58 

52 

95

3,750

130 

3,310 

709 

1,580 

455 

202 

125 

99 

69

6,880

Peak discharge (base. 50 sec. -ft.}. Feb. 6 (3:15 a.m.) 1,210 sec. -ft.; Feb. 11 (5 a.m.) 178 sec.-
SANTA MARIA £IVER BASIN 153

Sisquoc River near Garey, Calif.

Location.-Water-stage recorder, lat. 34°51'40", long. 120° 15'45", in NE£ sec. 17, T. 9 N...

 R. 3H W., 0.5 mile downstream from Tepusquet Creek and 3.5 miles southeast of Garey. 

Altitude of gage, about 450 feet.

Drainage area. 442 square miles.

Records available. February 1941 to September 1950.

Extremes. Maximum discharge during year, 900 second-feet Feb. 6 (gage height,-4.56 feet);

 no now during most of year. , , , . . . .

1941-50; 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 fair. Some water is diverted above station for irrigation. 

Revisions (water years). W 1011: 1941, 1943.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

0 

0 

0 

0 

0

250 

180 

35 

13 

1.7

23 

9.8 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mfiv

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

0 

27 

26

14 

10 

7.1 

4.6 

1.2

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

0 

0 

0

44.64

0 

512.6 

0 

89.9 

0 

0 

0 

0 

0

602.5

May

Maximum

0 

0 

0

29

0 

250 

0 

27 

0 

0 

0 

0 

0

250

 June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.122

0 

18.3 

0 

3.00 

-0 

0 

0 

0 

0

1.65

Sept.

Runoff In 

acre-feet

0 

0 

0

89

1,020 

0 

178 

0 

0 

0 

0 

0

1,200
154 SANTA MARIA RIVER BASIN

La Brea Creek near Slsquoc, Calif.

Location. Water-stage recorder, lat. 34°51'00", long. 120°12'00", in SE£ sec. 13, T. 9 N.,

 3y W',1 , 2,100 feet upstream from mouth and 5.5 miles east of Slsqupc, Santa Barbara County. 

Altitude of gage, about 550 feet.

.Drainage area 86.7 square miles.

Records available.--October 1943 to September 1950.

Extremes--Maximum discharge during year, 12 second-feet Apr. 9 (gage height, 2.6 /eet); no 

now auring most of year.

1943-50: Maximum discharge, 1,600 second-feet Feb. 22, 1944 (gage height, 5,22 feet), 

from rating curve extended above 114 second-feet by logarithmic plotting; no flow during 

most of each year.

Remarks.--A.t a point about 1.1 miles above station, ten miscellaneous discharge measurements

 were made of the perennial low flow from the basin. The flow sinks beneath the stream 

bed before reaching this station. No diversion.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3

4r

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24r

85

26 

87 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

ttonth

Goto 

Move

Deeei

Ca

Janu 

Pebr 

Hare 

Aprl

nay.

June 

July 

Augu 

Sept

Ha

Feb.

 toer. ...........---..-.-..--------------

lendar year 194

ary

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

ter year 1949-50 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

Q 

4.1

2.0 

.7 

.1 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

aO 

alO 

6.6

5.S 

4.4 

3.2 

2.9 

2.2

2.2 

1.7 

1.4 

1.0 

.9

.6 

.5 

.4 

.4 

.2

.2

.1 

.1 

0 

0

Seoondfoot-daye

0 

0 

0

0

0 

0 

6.9 

4,6.8 

0 

0 

0 

0 

0

53.7

»y

Maximum

0 

0 

0

0

0 

0 

4,.! 

10 

0 

0 

0 

0 

0

10

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

0

0 

0 

.22 

1.56 

0 

0 

0 

0 

0

.15

Sept.

Runoff la 

acre-feet

0 

0 

0

0

0 

0 

14 

93 

0 

0 

0 

0 

0

107

a No gage-height record) discharge computed on basis of high-water mark, weather records, 

records for stations in Slsquoc River Basin.
SANTA MARIA RIVER BASIN 155

Tepusquet Creek near Sisquoc, Calif.

Location.--Water-stage recorder, lat. 34°52'05", long. 120°14'40", in NE£ sec. 9, T. 9 N., 

K. 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 1950.

Extremes.--Maximum discharge during year, 3.1 second-feet Mar. 24 (gage height, 2.05 feet); 

minimum daily, 0.1 second-foot on many days.

1943-50: Maximum discharge, 200 second-feet Feb. 21, 1944 (gage height, 3.86 feet), 

from rating curve extended above 22 second-feet by logarithmic plotting; no flow Sept. 

8, 1949.

Remarks.--Records fair. No diversion.

Discharge, In second-feet,'water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

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 

.2 

.5

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Dec.

0.1 

.1 

.1 

.1- 

.2

.2 

.5 

.7 

.2 

.2

.2 

.2 

.2 

.2 

.3

.2 

.2 

.2 

.3

.2

.2 

.2 

.2 

.2

.2

.2 

.2 

.2

.2 

.2 

.2

Jan.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.2 

.2

.4 

.2

.2 

.3 

.2

.2

.2 

.2

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.4 

.2 

.2 

.2

Feb.

0.2 

.2 

.2 

.2 

.3

.6 

.3 

.3 

.2 

.3

.3 

.2 

.2

.2 

.2

.2 

.2 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

Month

Octo 

Hove 

Dece:

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

0.3 

.3 

.3 

.3 

.4

.4 

.4 

.4

.5 

.5

.5 

.5 

.5 

.5 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.7 

1.0 

.7

.6 

.5 

.5 

.5 

.5 

.6

Apr.

0.6 

.6 

.6 

.5

.6

.6 

.7 

.7 

.7 

.7

.6 

.6 

.6 

.6 

.6

.6 

.6

.6 

.6 

.6

.6 

.6 

.6 

.5 

.4

.5 

.5 

.4 

.4

.5

Secondfoot-days

3.1 

3.5 

6.8

113.8

6.8 

6.8 

16.2 

17.3 

19.8 

18.9 

13.6 

6.6 

4.7

124.1

May

0.5 

.6

.e

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.7 

.7 

.7

.7 

.6 

.6 

.6 

.6

.6 

.6 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7 

.7

Maximum

0.1 

.5 

.7

1.0

.4

.6 

1.0 

.7 

.7 

.7 

.6 

.3 

.3

1.0

June

0.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.6

.7 

.6

.e

.6 

.6

.6 

.6 

.7 

.6 

.6

.5 

.5 

.5 

.4 

.4

July

0.4 

.4 

.4 

.4 

.4

.5 

.4 

.4

.5

.6

.6 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4

.3 

.3 

.4 

.3

Minimum

0.1 

.1

.1

0

.2

.2 

.3 

.4 

.5 

.4 

.3 

.1 

.1-

.1

Aug.

0.3 

.3 

.3 

.3 

.3

.3 

.2 

.2 

.3

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.2

.2 

.2

.1 

.1 

.1

.2 

.2 

.2

:I.2

Mean

0.10 

.12 

.22

.31

.22

.24

.52 

.58 

.64 

.63 

.44 

.21 

.16

.34

Sept.

0.2 

.2 

.2

.2 

.2

.2 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

:l

Runoff -In 

acre-feet

«.l 

6.9 

13

225

13 

13 

32 

54 

39 

37 

27 

13 

9.3

243

Peak discharge (base. 10 sec.-ft.) . Ko peak above bsse.
156 ARROYO GRANDE BASIN

Arroyo Grande at Arroyo Grande, Calif.

Location. Water-stage recorder and broad-created weir, lat. 35°07'25", long. 120°34'20", 

 in Piamo Grant at Arroyo Grande, San Luia 1 Obiapo County, 0.25 mile upstream from

Pacific Coaat Railway bridge. Datum of gage la 97.8 feet above mean aea level, datum

of 1929, supplementary adjustment of 1934.

Drainage area. 106 square miles.

Recorda available. December 1939 to September 1950.

Average diacharge. 10 years (1940-50), 24.7 aecond-feet.

Extremes. Maximum diacharge during year, 582 aecond-feet Feb. 6 (gage height, 5.10 feet); 

minimum daily, 0.1 second-foot Oct. 15, Dec. 2.

1939-50: Maximum diacharge, 3,100 second-feet Mar. 4, 1941 (gage height, 8.80 feet, 

datum then in uae); minimum daily, leaa than 0.1 aecond-foot during aeveral perioda in 

Auguat and September 1949.

Remarks. Records good. Many small and intermittent diversions by pumping from stream 

for irrigation above station.

Reviaions (water yeara). W 931; 1940. W 1011: 1941, 1942(M).

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.3 

.5 

.4 

.4

.4 

.4 

.7 

.8 

.5

.2 

.2 

.2 

.2 

.1

.5 

.6 

.9 

1.7 

1.3

1.4 

2.2 

2.2 

2.0 

1.5

2.4 

2.0 

1.7 

1.4 

.9 

.8

Nov.

0.7 

.8 

1.2 

.9 

.8

.9 

1.1 

1.4 

1.8 

3.2

2.6 

2.8 

2.6 

2.4 

2.7

2.4 

2.3 

2.2 

.9 

.8

.8 

.8 

.6 

.8 

.7

.6 

.6 

.5 

.4 

.2

Dec.

0.2 

.1 

.3 

.3

.2

.7 

2.5 

9.5 

5.3 

4.5

4.5 

4.5 

4.3 

4.3 

4.9

4.9 

5.3 

4.9 

4.9 

4.7

4.7 

4.7 

4.7 

4.5 

4.5

4.5 

4.5 

4.5 

4.5 

4.7 

4.7

Jan.

4.5 

4.5 

4.5 

4.3 

2.9

2.9 

2.9 

3.2 

4.1 

4.3

4.9 

4.9 

4.7 

6.4 

5.7

5.3 

5.3 

5.1 

5.1 

4.7

5.1 

5.3 

5.3 

5.5 

5.5

5.3

5.3 

7.3 

7.3 

7.0 

7.0

Feb.

7.0 

7.3 

7.3 

8.0 

11

306 

83 

29 

14 

14

19 

18 

18 

18 

18

18 

19 

18 

18 

18

18 

19 

20 

17 

16

16 

15 

15

Month

Octo 

Novel 

Deee

Ca

Janu 

Febr 

Hare 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

Bber * « .

nber. ...........-.-..---...-.-.- .......

lendar year 1949

ter year 1949-50 .......................

Mar.

15 

15 

15 

12 

12

11 

12 

10 

9.4 

11

11 

11 

10 

10 

10

9.9 

9.4 

10 

11 

11

9.6 

9.5 

8.4 

19 

22

18 

17 

15 

15 

15 

15

Apr.

15 

14 

12 

12 

10

11 

14 

18 

24 

21

18 

16 

16 

15 

12

12 

9.9 

6.8 

6.1 

6.0

6.8 

8.7 

9.6 

8.9 

8.7

8.3 

9.2 

8.2 

8.2 

9.4

Secondfoot -day s

29.0 

40.3 

121.3

1,35

156.1 

804.6 

389.2 

354.8 

259.5 

171.1 

103.6 

23.2 

45.6

2^498.3

Hay

8.4 

9.3 

12 

8.9 

10

10 

8.9 

6.4 

5.7 

5.5

5.9 

6.8 

6.6 

8.0 

6.6

6.8 

5.9 

7.7 

8.4 

9.4

3.9 

9.6 

8.0 

7.1 

7.7

10 

12 

9.4 

9.9 

8.7 

11

Maximum

2.4 

3.2 

9.5

21

7.3 

306 

22 

24 

12 

10 

14 

2.2 

2.3

306

June

9.9 

10 

10 

10 

9.4

7.3 

5.9 

6.4 

5.7 

3.9

5.7 

5.7 

5.1 

5.9 

5.5

6.1 

5.1 

6.1 

5.6 

5.0

4.7 

4.1 

3.5 

4.3 

4.6

4.6

d4.2 

d3.0 

dl.9 

dl.9

July

d2.8 

4.1 

3.6 

4.9 

3.4

2.8 

3.4 

2.8 

4.7 

14

9.6 

4.5 

4.5 

2.4 

2.0

2.9 

2.4 

3.5 

2.5 

2.1

2.1 

2.7 

2.3 

2.4 

2.6

3.3

1.6 

1.5 

1.1 

.5 

.6

Minimum

0.1 

.2

.1

-

2.9 

7.0 

8.4 

6.0 

5.5 

1.9 

.5 

.2 

.6

.1

Aug.

0.9 

.5 

.7 

.5 

.6

1.3 

1.0 

1.0 

.8 

.8

.4 

.5 

.8 

.8 

.8

.8 

.6 

.8 

.6 

.5

.4 

.4 

.2 

.2 

.2

.4

.8 

.8 

.9 

2.0 

2.2

Mean

0.94 

1.34 

3.91

3.70

5.04 

28.7 

12.6 

11.8 

8.37 

5.70 

3.34 

.75 

1.52

6.84

Sept.

2.3 

1.7 

1.3 

1.9 

1.5

1.8 

1.4 

1.2 

2.0 

2.3

2.3 

1.3 

.6 

1.1 

1.2

1.6 

1.8 

1.2 

.8 

.8

.6 

1.0 

2.0 

2.3 

1.8

1.6 

1.3 

1.4 

1.6 

1.9

Runoff in 

acre-feet

58 

80 

241

2,680

310 

1,600 

772 

704 

515 

339 

205 

46 

90

4,960

Peak discharge (base, 40 see.,-ft0^ yeb. 6 (9:30 a.m.) 582 sec.-ft.

d. Doubtful gage-height record) discharge computed on basis of partial gage-height record and normal 

daily fluctuations.
SALINAS RIVER BASIN 157

Salinas River near Pozo, Calif.

Location. Water-stage recorder, lat. 35°18', long. 120°24', in SE^ sec. 18, T. 30 S., R. 

ib E., 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 1950.

Extremes.--Maximum discharge during year, 2,000 second-feet Feb. 6 (gage height, 9.60 

feetj; minimum dally, 0.2 second-foot Oct. l-8i

1942-50: 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, less'than 0.1 second-foot 

at various times August and September 1948.

Remarks. Records fair. No storage or diversion above station, 

saunas Reservoir below station.

Water is stored In

Discharge, In second-feet, water year October 1949 to September 1950

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.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.3 

.3

.3 

.3 

.3 

-.3

.3

.3

.3 

.4 

.5 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6 

.5

Nov.

0.5 

.6 

.6 

.6 

.7

.6 

1.0 

1.1 

1.1 

4.2

1.4 

1.1 

1.0 

1.0 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

1.0 

1.0 

1.0

Dec.

 1.0 

1.0 

1.0 

1.0 

1.0

1.0 

3.9 

7.1 

2.1 

1.4

1.2 

1.2 

1.1 

1.0 

1.7

1.2 

1.2 

1.2 

1.9 

1.3

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.1 

1.1

Jan.

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

2.1 

1.4 

1.3

7.0 

3.2 

2.3 

30 

9.4

5.0 

3.8 

3.2 

2.5 

 2.1

1.9 

1.9 

1.7 

1.7 

1.7

1.7 

1.7 

1.9 

2.3 

2.1 

1.9

Feb.

1.9 

1.7 

1.7 

3.8 

64

812 

37 

72 

42 

42

45 

29 

22 

18 

16

13 

11 

9.4 

8.2 

7.6

7.0 

6.4 

5.8 

5.2 

4.9

4.7 

4.5 

4.2

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

lendar year 194; 

ary

ember . . * 

ter year 1949-50 .......................

Mar.

4.0 

3.7 

3.5 

3.5 

3.2

3.0 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.5 

2.5 

2.5

2.3 

2.3 

2.1 

30 

28

16 

11 

8.6 

7.3 

6.7 

5.5

Apr.

4.9 

4.7 

4.2 

4.0 

3.7

3.5 

3.7 

76 

117 

55

32 

21 

16 

13 

11

9.0 

7.9 

7.0 

6.1 

5.5

5.2 

4.7 

4.5 

, 4.0 

3.7

3.7 

3.5 

3.5 

3.2 

3.2

Secondfoot -day s

12.3 

30.4 

46.5

1,579.7

101.5 

1,300.0 

177.9 

444.4 

78.7 

40.1 

20.5 

13.9 

11.2

2,277.4

May

3.2 

3.5 

3.5 

3.2 

3.2

3.2 

3.0 

3.0 

3.0 

3.0

2.7 

2.5 

2.5 

2.5 

2.5

2.5 

2.5 

2.3 

2.3 

2.3

2.1 

2.3 

2.3

2.3 

2.3

2.1 

1.9 

1.9 

1.7 

1.7 

1.7

Maximum

0.6 

4.2 

7.1

257

30 

812 

30 

117 

3.5 

1.5 

1.4 

.6 

.4

812

June

1.5 

1.5 

1.5 

1.4 

1.4

1.4 

1.5 

1.5 

1.4

1.4 

1.4 

1.4 

1.2 

1.2

1.4 

1.4 

1.4 

1.2 

1.2

1.4 

1.4 

1.4 

1.4 

1.4

1.2 

1.2 

1.2 

1.0 

.8

Minimum

July

0.8 

.8 

.7 

.6 

.6

.6 

.6 

.6 

.8

1.2 

1.1 

.8 

.7 

.6

.6 

.6 

.6 

.6 

.6

.6 

.B 

.6 

.5 

.4

.4 

.4

.5 

.5 

.5 

.6

0.2 

.5 

1.0

.1

1.1 

1.7 

2.1 

3.2 

1.7 

.8 

.4 

.3 

.3

.2

Aug.

0.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.5

.4 

.4 

.4

.4 

.4

.4 

.4

.4 

.4 

.4

.4 

.4 

.4

.4 

.4

.4

.4 

.4 

.4 

.3 

.3

Mean

0.40 

1.01 

1.50

4.33

3.27 

46.4 

5.74 

14.8 

2.54 

1.34 

.66 

.45 

.37

6.24

Peak discharge (base, 100 sec. -ft.). Feb. 6 (4:30 a.m.) 2,000 sec. -ft. j Apr. 6 (9 p.m.

Sept.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

./

.4

.4 

.4

.4 

.4

.4 

.4

.4 

.4

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

Runoff in 

acre-feet

24 

60 

92

3,130

201 

2,580 

353 

881 

158 

80 

41 

28 

22

4,520

) 208 sec.-
158 SAUNAS RIVER BASIN

Sallnas Reservoir near Pozo, Calif.

Location. Water-stage recorder, lat. 35'20i, long. 120°30>, in sec. 5, T. 30 S., R. 14

 E.1 , at dam on'Salinas River, 2 miles upstream from Pilltas Creek arid 7.5 miles northwest of Pozo. Datum of gage is at mean sea level'(levels by Corps of Engineers). 

Drainage area.--Ill square miles. 

Hecoras available. December 1941 to September 1950. Extremes. Maximum contents during year, 12,000 acre-feet Apr. 18-25; maximum elevation,

 1,278.03 feet Apr. 20; minimum, 5,630 acre-feet Dec. 6.

1941-50: Maximum contents, 24,120 acre-feet Mar. 19, 1945 (elevation, 1,298.45 

feet)'; minimum, 1,730 acre-feet Nov. 6-10, 1943. 

Remark's . Reservoir is formed by concrete-arch dam; outlet closed 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 Luls Oblspo 

and city of San Luis Oblspo for water supply; water is also released down natural 

channel of river. Records show usable contents at 12 p.m. The county of San- Luls 

Obispo has furnished the following record of diversions for 1949-50:

Month

October 

November 

December 

January 

February 

March

Water yet

Diversion in 

acre-feet

223 

192 

157 

139 

121 

170

ir 1949-50. ......

Month

April 

May 

June 

July 

August 

September

Diversion In 

acre-feet

174 

226 

253 

314 

309 

267

2,545

Contents, in acre-feet, water year October 1949 to September.1950

r*s

i

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

' 6,170

6,160

6,150

6,140

6,130

6,110

6,100

6,090

6,060

6,060

6,050

6,040

6,030

6,020

6,010

6,OOO

5,980

5,970

5.960

5,960

5,940

5,930

5,920

5,910

5,900

5,690

5,680

5,370

5,870

5,850

5,340

Hoy.

5,650

5,820

5,310

5,800

5,790

5,780

5,770

5,760

5,810

5,830

5,820

5,810

5,810

5,300

5,800

5,790

5,780

5,780

5,770

5,760

5,750

5,740

5,730

5,730

5,710

5,710

5,710

5,700

5,690

5,680

-

Dec.

5,630

5,670

5,660

5,650

5,640

5,630

5,700

5,840

5,850

5,850

5,840

5,840

5,340

5,840

5,850

5,860

5,860

5,830

5,920

5,920

5,920

5,320

5,920

5,920

5,920

5,920

5,920

5,920

5,920

5,920

5,920

Jan.

5,910

5,910

5,910

5,910

5,900

5,900

5,900

5,940

5,940

5,950

6,030

6,060

6,070

6,310

6,370

6,390

6,410

6,420

6,440

6,440

6,440

6,450

6,460

6,460

6,460

6,460

6,470

6,490

6,500

6,510

6,510

Feb.

6,510

6,520

6,530

6,560"

6,970

9,430

9,830

10,000

10,100

10,200

10,300

10,400

10,400

10,500

10,500

10,500

10,600

10,600

10,600

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

_

_

-

Mar.

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,70,0

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,900

10,900

11,000

11,000

11,000

11,000

11*000,

11,000

Apr.

11,000

11,000

11,000

11,100

11,000

11,000

11,100

11,300

11,600

11,700

11,800

11,800

11,900

11,900

11,900

11,900

11,900

12,000

12,000

12,000

12,OOO

12,000-

12,OOO

12,000

12,000

11,900

11,900

11,900

11,900

11,960

Hay

11,900

11,900

11,900

11,900

11,900

11,900

11,900

11,900

11,900

11,800

11,800

.11,800

11,800

11,800

11,800

11,800

11,800

11,800

11,800

11,300

11,700

11,700

11,700

11,700

11,700

11,700

11,700

11,700

11,700

11,600

11,600"

June

11,600

11,600

11,600

11,600

11,600

11,500

11,500

11,500

11,500

11,500

11,500

11,400

11,400

11,400

11,400

11,400

11,400

11,400

11,400

11,30.0

11,300

11,300

11,300

11,300

11,200

11,200

11,200

11,200

11,200

11,200

-

July

11,100

11,100

11,100

11,100

11,000

11,000

11,000

11,000

11,000

11,000

11,000

11,000

10,900

10,900

10,900

10,900

10,900

10,900

10,800

10,800

10,800

10,800

10,800

10,800

10,700

10,700

10,700

10,700

10,700

10,600

10,600

Aug.

10,600

10,600

10,600

10,500

10,500

10,500

10,500

10,500

10,500

10,400

10,400

10,400

10,400

10,400

10,300

10,3.00

10,300

10,300

-10,300

10,200

10,200

10,200

10,200

10,200

10,100

10,100

10,100

10,000

9,950

9,860

9,830"

Sept.

9,820

9,790

9,770

9,750

9,730

' 9,710

9,700

9,680

9,660

9,640

9,620

9,610

9,590

9,570

9,550

9,540

9,520

9,500

9,480

9,470

9,450

9,430

9,410

9,390

9,380

9,360

9,340

9,320

9,300

9,280

-

Monthly elevation and contents, water year October 1949 to September 1950

Date

Sept. 30:................

Oct. 31. ................

Nov. 30. ................

Dec. 31.................

Calendar year 1949....

Jan. 31. ................

Feb. 28. ................

Mar. 31.................

May 31, ................

July 31. ................

Aug. 31.................

Sept. 30.................

Water year 1949-50. . . .

Elevation 

(feet)t

-

1

O7P QC

l'j-271.58

-

Contents 

(acre-feet)

-

9,230

-

Change in contents 

during month 

(aore-feet)

+740

 f 900

-550

+3,100

t Elevation at 12 p.
SALINAS RIVER BASIN 159

Salinas River above Pilitas Creek, near Santa Hargarita, Calif.

Location.. --Water-stage recorder and concrete control, lat. 35°21», long. 120 0 31',

sec. 6, T. 30 S., R. 14 E., immediately upstream from Pilitas Creek, 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 1950.

Extremes.--Maximum discharge during year, 130 second-feet Aug. 30 

no now for several months.

1942-50: Maximum discharge, 562 second-feet Jan. 28, 1943 

no flow at times during 1944, 1947-50.

height, 1.64 (feet); 

height, 2.49 feet);

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

rair. Plow regulated by Salinas Reservoir beginning in 1941 {see preceding page). 

Samll amount of water diverted to Camp San Luis Obiapo and city of San Luis Obiapo.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

13 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

.1 

.3 

.2

.1 

.1 

.1 

.1 

.2

.3 

d.5 

d.5 

h.4 

d.3

d.3 

d.2 

d.2 

d.l 

d.l

d.l 

. d.l 

d.l 

d.l 

d.l 

d.l

Jan.

do.l 

d.l

d.l 

d.l

d.l 

d.l 

d.5 

.2 

.1

.7 

.3 

.2 

1.6 

.5

.3 

.2 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.2 

.1 

.1

Feb.

0.1 

.1

.2 

1.9

12 

1.6 

.9 

.6 

.6

.3 

.3 

.2 

.2 

.2

.2

.1 

.1 

.1 

.1

.1 

- .1 

.1 

.1 

.1

.1 

.1 

.1

Month

OctO 

Hove: 

Deoe

ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

wa

bar. ....................................

Bber. ... . .... ..............

lender year 1949 

ary

ter year 1949-50 .......................

Mar.

0.1

.1

.1 

.1

.1 

.1 

.1 

.1

.1

.1 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

2.8 

1.8

1.1

.9

.e

.8 

.7 

.7

Apr.

0.7 

.7

.6 

.6

.6 

.8 

5.8 

d4.0 

d3.0

d2.0 

dl.5 

dl.O 

d.6 

d.4

d.3 

d.2 

d.2 

d.l 

d.l

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

May

0.1.1

.1 .1

.1

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Second- MOT! MM* foot-toys *»fw>»

0 0 

0 0 

4.7 .5

46.9 3.0

7.0 1.6 

20.7 12 

10.8 2.8 

24.9 5.8 

.6 .1 

0 0' 

0 0 

99.1 46 

45.6 2.0

213.4 46

June July Aug.

0 

0 

0 

0 

O

0 

0 

0 

O

o

0 

0 

0 

0

.1

.2 

0 

.2 

.4 

.4

.9 

1.0 

1.0 

' 1.0 1.1

5.6 

17 

2.4

20 

46 

1.8

Sept.

1.6 

1.4 

1.4 

1.6 

1.4

,1-6 

1.6 

1.6 

1.8 

1.6

2.0 

1.6 

1.6 

Iv6 

 1.6

1.6 

1.6 

1.6 

1.6 

1.4

a. 4

1.4 

1.4 

1.4 

1.3

1.4 

1.3 

1.4 

1.4 

1.4

m«i ,~ Minima. n.h Mean n Runoff In aore.feet

00 0 

00 0 

0 .15 9.3

o .13 as

.1 .23 ' 14 

.1 .74 41 

0 .35 21 

.1 .83 49 

0 .02 '. 1,8 

0 0 ' '. -0

o o : ; '0* 

o 3.20 "-lir '

1.3 1.52 90. j0 -*8 . - M..'

d Doubtful gage-height record; discharge computed on baals of weather records _aBdTtrenilJ of- 6*<ehelght recrd. . , , - -.' 

h Computed from wire-weight gage reading. ' . £ ;., 
160 SAUNAS RIVER BASIN

Salinas River at Paso Robles, Calif.

Location.--Wire-weight gage, lat. 35°37'40", long. 120°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 1950.

Average discharge.--11 years, 112 second-feet.

Extremes. Maximum discharge observed during year, 4,260 second-feet Feb. 6 (gage height, 

11.03 feet); no flow during several months.

1939-50: 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. Gage read twice daily. Small diversions above station, 

regulated by Salinas Reservoir-'beginning in 1941 (see p. 158).

Plow

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

O 

0

o 

o

0 

0 

74 

70

53 

38 

30 

19 

12

7.8 

5.9 

4.2 

2.4 

1.8

6.8 

6.8 

10 

35 

30 

18

Feb.

14 

11 

9.8 

19 

844

3,260 

953 

402 

285 

255

264 

217

169 

154 

135

128 

122

111 

100 

90

83 

74 

67 

61 

53

53 

48 

47

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1949

ter year 1949-50 .......................

Mar.

43 

39 

36 

34 

33

32 

31 

30 

28 

26

25 

23 

22 

22 

20

17

17 

17 

16 

15

15 

14 

12 

41 

519

334 

258 

231 

217 

192 

169

Apr.

U9 

139 

135 

124

113

102 

96 

109 

214 

169

130 

113 

102 

83 

72

61 

53 

46 

39 

34

28 

27 

25 

23 

21

20 

19 

18

16

14

Secondfoot-days

0 

0 

0

7,676.2

424.7 

8,028.8 

2,528 

2,294 

136.7 

5.0 

0 

O 

0

13,417.2

May

14 

13 

14

12 

11

10 

9.2 

8.7 

7.8 

5.9

5.0 

3.6 

2.4 

2.4 

2.1

2.1 

2.4

1.5 

1.3 

1.1

1.1 

1.1 

.8 

.8 

.8

.8 

.7 

.6 

.3 

.2 

O

Maximum

0 

0 

0

1,300

74 

3,260 

519

214 

14 

1.1 

0 

0 

0

3,260

June

0.5 

1.0 

1.0 

1.0

1.1

.2 

0 

.2 

0 

O

o 

0 

0 

0 

0

0 

0

o 

o

0

o

0 

0 

0

o

0

0

o 

o

0

July

Minimum

0 

0 

O

O

o

9.8 

12 

14 

O 

0 

0 

O 

0

0

Aug.

Mean

0 

0 

0

21.0

13.7 

287 

81.5 

76.5 

4.41 

.17 

O 

0 

0

36.8

Sept.

Runoff in 

acre-feet

0 

0 

0

15,220

842 

15,920 

5,010 

4,550 

271 

9.9 

0 

0 

0

26,600
SALINAS RIVER BASIH 161

Salinas River near Bradley, Calif.

Location. Water-stage recorder, lat. 35°55<40", long. 120°52'00", in NE£ sec. 15, T. 23

 S., R. 10 E., 6 miles northwest of town of Bradley and 7 miles downstream from San 

Antonio River. Altitude of gage, about 450 feet (from topographic map).

Drainage area. 2,522 square miles.

Records available.--December 1948 to September 1950.

Extremes. Maximum discharge during year, 15,500 second-feet Feb. 6 (gage height, 10.66

 feet); minimum, 1.1 second-feet Aug. 17-20, 28, 29, Sept. 2-4.

1949-50: Maximum discharge, that of Feb. 6, 1950; minimum, 0.9 second-foot Sept. 

21-24, 1949.

Remarks.--Records good.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.3 

2.5 

2.5 

2.5 

2.5

2.5 

2.8 

2.8 

2.8 

3.1

3.4 

3.1 

3.1 

3.1 

3.1

3.4 

3.8 

3.8 

4.2 

5.0

5.0 

5.4 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5.4 

5.4 

5.4

Nov.

5.4 

5.4 

5.4 

5.4 

5.4

5.4 

5.9 

6.9 

7.9 

11

9.7 

8.5 

7.9 

7.4 

6.9

6.9 

6.9 

6.9 

6.9 

6.9

6.9 

6.9 

6.9 

6.9 

6.9

7.4 

7.4 

7.4 

7.4 

7.4

Dec.

7.4 

7.4 

7.4 

7.4 

7.4

7.9 

13 

17 

13 

10

9.7 

10 

9.7 

9.1 

13

11 

11 

10 

64 

178

136 

97 

78 

68 

68

68 

68 

68 

68 

68 

68

Jan.

68 

68 

68 

68 

68

68 

68 

68 

174 

241

411 

958 

608 

1,140 

2,260

882 

645 

884 

682 

538

423 

358 

315 

280 

263

246 

241 

246 

400 

475 

378

Feb.

309 

268 

252 

258 

6,470

9,770 

5,760 

2,640 

1,690 

1,380

1,850 

1,360 

1,120 

952 

842

738 

652 

580 

517 

468

436 

390 

364 

339

315

297 

280 

263

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

ter year 1949-50 .......................

Mar.

252 

241 

230 

225 

220

206 

196 

192 

187 

174

170 

166 

158 

142 

132

116 

105 

94 

89 

89

89 

92 

87 

120 

1,500

1,070 

770 

615 

524 

449 

384

Apr.

345 

327 

327 

2B5 

246

230 

225 

241 

491 

738

652 

552 

482 

423 

390

358 

327 

297 

263 

241

220 

196 

178 

162

154

150 

139 

132 

123 

120

Secondfoot-days

121.3 

210.5 

1,278.4

76,255.5

13,592 

40,560 

9,084 

9,O14 

1,787 

236.2 

56.9 

36.8 

63.1

76,040.2

May

110 

105 

100 

100 

97

89 

82 

80 

72 

70

66 

62 

60 

59

53

50 

48 

46 

46 

43

41 

41 

40 

38 

36

33 

29 

26 

24 

22 

19

Maximum

5.4

11.0 

178

8,660

2,260 

9,770 

1,500 

738 

110 

18.0 

5.4 

1.4 

3.4

9,'770

June

18 

16 

15 

13 

11

10 

9.7 

9.1 

9.1 

8.5

7.9 

7.4 

7.4 

7.4 

7.4

7.4 

6.9 6.4' 

5,9 

5.9

5,9 

5,9 

5,9 

5,9 

5.4

4.6 

4.2 

3.4 

3.1 

2.5

July

2.3 

2.0 

2.0 

2.0 

2.0

2.0 

2.3 

2.3

2.5 

5.4

3.8 

2.3 

1.8 

1.8 

1.6

1.6 

1.6 

1.6 

1.6 

1.2

1.2 

1.2 

1.2 

.1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2 

1.2

Minimum

2.3

5.4

7.4

.9

68 

252 

87 

120 

19 

E.5 

1.2 

1.1 

I.I

1.1

Aug.

1.2 

1.2 

1.2 

1.2 

1.4

1.2 

1.2 

1.2

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.1 

1.1 

1.1 

1.1

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.1 

1.1 

1.2 

1.2

Mean

3.91 

7.02 

41.2

209

438 

1,449 

293 

300 

§7.6 

7.87 

1.84 

1.19 

2.10

208

Sept.

1.2 

1.1 

1.1 

1.1 

1.2

1.2 

1.4 

1.8 

2.0 

2.3

2.3 

2.3 

2.0 

2.0 

2.0

2.3 

2.8 

3.1 

3.4

3.4

2.8 

2.3 

2.3 

2.3 

2.5

2.5 

2.3 

1.8 

2.0 

2.3

Runoff In 

acre-feet

241 

418 

2,540

151,200

26,960 

80,450 

18,020 

17,880 

3,540 

438 

.113 

73 

125

150,800

Peak discharge (base, 4,000 sec. -ft.). --Jan. 14 (12 p.m.) 4,440 sec. -ft. s Feb. 6 (12 m.) 15,500
162 SALINAS RIVER BASIN

Salinas River near Spreekels, Calif.

Location.--Water-stage recorder and wire-weight gage lat. 36°37'50", long. 121°40'40", in 

Si"Toro Grant, at bridge on Salinas-Monterey highway, 0.5 mile upstream from Toro Creek, 

2 miles west of Spreekels, Montery 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 1950.

Average discharge. 20 years (1930-50), 539 second-feet.

Extremes.--Maximum discharge during year, 5,270 second-feet Feb. 7 (gage height, 17.71 

feet); minimum observed, 0.7 second-foot Sept. 28.

1929-50: 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 good except those below 10 second-feet, which are poor. Wire-weight 

gage read once daily. Many small diversions above station for irrigation. Low flow 

represents waste water from Spreekels sugar refinery.

. Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11

ie

13

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

 e2.5

Nov.

 e7.5

Dec.

e6.0

Jan.

' 63.0

Feb.

63 

63 

63 

63 

63

64

3,230 

3,580 

1,960 

1,200

767 

554 

753 

526 

380

277 

202 

140 

92 

58

36 

22 

14 

11 

9.3

8.1 

7.9 

7.6

Month

Octo 

Hove 

Dece

Ca

Janw 

Pebn 

Marc 

Apr! 

May.

June 

July 

Augu

Sept

Ha

 her ......*...---------

lendar year 1949 

fitry

tiapv

ter year 1949-50 .......................

Mar.

6.6 

5.S 

6.8 

6.8 

5.0

5.0 

4.6 

4.3 

4.3 

4.1

3.2 

2.4 

2.4 

2.3 

2.1

' 1.9 

1.9 

2.1 

1.8 

1.6

2.1 

2.8 

2.4 

5.2 

2.8

3.0 

2.8 

3.0 

3.2 

3.0 

2.8

Apr.

. 62.0

Seoondfoot-days

77.5 

225 

186

25,492.4

93 

13,653.9 

108.3 

60.0 

46.5 

54.0 

46.5 

46.5 

45.0

14,842.2

May

. el. 5

Maxinua

.

4,O90

3,580 

6.8

3,580

June

. el. 8

Minima

.

-

3 

1.

-

July

el. 5

Aug.

el. 5

Mean

2.5 

7.5 

6.0

69.S

3.0 

495 

6 3.49 

2.0 

1.5 

1.8 

1.5 

1.5 

1.5

40.7

Sept.

el. 5

Runoff in 

acre-feet

154 

446 

369

50,560

184 

27,480 

215 

119 

92 

107 

92 

92 

89

29,440

Peak discharge (base. 270 sec.-ft.). Peb. 7 (5 P.O.) 5,270 sec.-ft. 

e uage-neignt not representative or average for day] discharge computed on basis of measurements.
SALJNAS RIVER BASIN 

Toro Creek near Pozo, Calif.

163

Location. Water-stage recorder and 90° V-notch weir, lat. 35°20', long. 120°2S', 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 November 1950 (low-water records only/. 

Extremes. Minimum discharge during period May to November 1950, 0.02 second-foot Aug. 21, 

1942-50: Minimum discharge, 0.02 second-foot Sept. 10, 11, 1948, Aug. 81, Sept. 27,

Remarks. Records good. Plow partly regulated at swimming pool above station.-

Discharge, in second-feet, May to November 1950

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

13

19

80

21

22

23

24

25

26

27

28

29

30

31

Hay

_

_

-

_

-

_

_

_

-

-

_

_

-

.

-

_

_

_

_

-

_

.

_

_

-

_

_

_

_

0.05

.05

June

0.05

.06

.07

.08

.05

.05

.05

.05

.05

.05

.06

.06

.07

.06

.05

.07

.07

.07

.05

.05

.05

.05

.06

.05

.04

.04

.04

.04

.04

.05

-

July

0.05

.04

.04

.04

.04

.04

.04

.04

'.06 .05

.05

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

Month

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

Aug.

0.04

.04

.03

,03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.04

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

Sept.

0.04

.04

.04

.04

.04

.05

.05

.05

.05

.04

.04

.04

.03

.03

.03

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.03

.03

.03

.03

.03

-

Oct.

0.04

.04

.04

.04

.05

.04

.03

.03

.03

.04

.04

.03

.03

.03

.03

.03

.04

.04

.04

.04

.04

.04

.04

.04

.04

.24

.24

.06

.06

.05

.06

Second- ifc»« .., foot-days ""Hw

1.63 0.08

1.29 .06

.96 .04

1.16 .05

1.64 .24

.29 .05

Nov.

0.05

.04

.05

.05

.05

..05

_

.

_

-

_

_

-

_

-

_

_

_

_

-

_

_

_

_

-

_

_

_

_

_

-

Minimum

0.04

.04

.03

.03

.03

.04

Mean

0.054

.042

.031

.039

.053

.048

Runoff In 

acre -feet

3.23

2.56

1.90

2.30

3.25

.58
164 SALINAS RIVER BASIN

Jack Creek near Templeton, Calif.

Location. Water-stage recorder, lat. 35°34', long. 120°48', in Paso de Robles Grant, 1.

 miles upstream from mouth, 1.8 miles northwest of Oakdale School, and 5.6 miles west 

of Templeton, San Luis Obispo County. Altitude of gage, about 980 feet (from topographic map).

Drainage area.--25.4 square miles.

Records available. October 1949 to September I960.

Extremes.--Maximum discharge during year, 1,500 second-feet Feb. 6 (gage height, 6.30

 reef), from rating curve extended above 500 second-feet by logarithmic plotting; no 

flow for several months.

Remarks.--Records good. No regulation. Small diversions above station for irrigation.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.34

1.4

1.5

1.7

1.8

1.3 

2.1

1.9

2.0

2.1

2.3

2.4

3.2

4.8

7.0

14

18

2.5

2.6 

2.8 

3.0 

3.3

23

30

47

70

114

3.6 

4.0 

4.3 

4.6

172

274

364

468

Discharge, In second-feet, water year October 1949 to September 1950

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. Dec. Jan.

0 

0 

0 . 

0 

0

0 

0 

5.5 

5.2 

2.2

36 

19 

13 

257 

38

18 

21 

14 

9.6 

7.5

5.8 

4.8 

4.1 

4.2 

4.1

3.2 

3.0 

26 

19 

12 

8.1

Feb.

6.8 

5.5 

4.8 

86 

188

448 

74 

38 

26 

62

41 

27 

21 

17 

15

13 

12 

10 

8.4 

7.8

7.0 

6.5 

6.0 

5.3

4.9

4.6 

4.2

4.1

Month

Ooto 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Apr!

Uav

June 

July 

Augu 

Sept

Ha

lendar year 

ary

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

ter year 1949-50 .......................

Peak discharge (base, 500 sec. -ft.). Jan.

sec. -ft. ; Mar. 24 (2 p.m.) 707 sec. -ft.

Mar.

3.9 

3.6 

3.5 

3.4 

3.1

3.0 

3.0 

2.9 

2.7 

2.6

2.5 

2.4 

2.3 

2.3 

2.2

2.1 

2.0 

1.9 

1.8 

1.8

1.8 

1.7 

1.6 

162 

58

26 

17 

13 

11 

9.6 

8.1

.Apr.

7.5 

6.8 

6.2 

5.5 

5.1

4.8 

5.8 

9.6 

12 

7.8

6.2 

5.5

4.9 

4.4 

4.1

3.8 

3.6 

3.4 

3.1 

2.9

2.7- 

2.6 

2.5 

2.5 

2.4

2.5 

2.4 

2.3 

2.1 

2.0

Secondfoot-days

0 

0 

0

-

550.3 

1,153.9 

362.8 

137.0 

40.7 

17.2 

4.7 

.3 

0

2,266.9

May

2.0 

2.0 

2.1 

2.0 

1.8

1.8 

1.7 

1.6 

1.5 

1.5

1.4 

1.4 

1.3 

1.4 

1.4

1.4 

1.2 

1.2 

1.1 

1.0

.9 

1.2 

1.2 

1.1 

1.0

.9 

.9 

.7 

.6 

.6 

.8

Maximum

0 

0 

0

-

267 

448 

162 

12 

2.1 

.9 

.4 

.1 

0

448

June

0.8 

.8 

.9 

.8 

.7

.7 

.7 

.8 

.7

.7

.6 

.6 

.7 

.6 

.5

.6 

.6 

.6 

.4 

.3

.4 

.4 

.5 

.5 

.5

.4 

.4 

.4 

.3 

.3

July

0.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.4

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.1 

.1

0 

0

.1 

.1 

.1

.1 

.1 

0 

0 

0 

0

Minimum

0 

0 

0

-

0 

4.1 

1.6 

2.0 

.6 

.3 

0 

0 

0

0

Aug.

0.1 

.1 

.1 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0 

0 

0

-

17.8 

41.2 

11.7 

4.57 

1.31 

.57 

.15 

.01 

O

6.21

Sept.

Runoff In 

acre-feet

0 

0 

0

-

1,090 

2,290 

720 

272 

81 

34 

9.3 

.6 

0

4,500

14 (8:30 a.m.) 1,280 sec. -ft.; Feb. 6 (1 a.m.) 1,500
SALINAS RIVER BASIN 165

Nacimiento River near San Miguel, Calif.

Location.--Water-stage recorder and concrete control, lat. 35°47'00", long. 120°47'24",

in SEt sec. 4, T. 25 S., R. 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 1950. 

Average discharge.--11 years, 280 second-feet. 

Extremes.--Maximum discharge during year, 19,000 second-feet Feb. 6 (gage height, 7.39

feet), from rating curve extended above 4,300 second-feet on basis of slope-area

determination! no flow Oct. 1 to Dec. 17, June 24 to Sept. 30.

1939-50: 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.

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method, used Jan. 21 to Feb. 4)

Oct. 1 to Jan. 16 Jan. 16 to Sept. 30

0.4 1.7 1.2 152 3.0 1,57O 0.2 0 0.9 58 3.0 1,910 

.6 9.7 1.4 232 3.3 1,840 .3 .4 1.1 137 3.5 2,580 

.7 20 1.6 330 3.6 2,170 .4 1.3 1.3 248 4.0 3,400 

.8 36 1.8 490 4.0 2,720 .5 3.0 1.5 370 4.5 4,510 

.9 57 2.0 670 .6 8.1 1.7 510 5.0 -5,930 

1.0 84 2.5 1,120 .7 18 1.9 680 5.5 7,850 

.8 32 2.3 1,090 5.9 9,850

Discharge, in second-feet, water year October 1949 to September 1950

^Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 30 ' 

31

Oct. Nov. Dec.

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

124 

196 

188

100 

65 

49 

42 

36

31 

30 

25 

23 

20 

19

Jan.

19 

18 

18 

18 

18

18 

19 

77 

438 

198

930 

643 

365 

2,590 

1,330

563 

665 

635 

410 

307

231 

178 

147 

127 

122

106 

90 

114 

542 

326 

236

Feb.

190 

152 

127 

1,220 

7,300

9,660 

2,120 

1,070 

700 

89O

1,110 

710 

542 

444 

383

320 

283 

248 

219 

196

178 

157 

142 

132 

122

110 

102 

94

Month

Octo 

Nove 

Deee

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

" Wa

lendar year 1949-

h. ......................................

ter year 1949-50i .......................

Mar.

90 

82 

74 

70 

67

61 

58 

55 

55 

52

49 

46 

46

44 

44

41 

41 

41 

39 

39

39 

37 

34 

596 

1,480

546 

364 

278 

225 

196 

167

Apr.

147 

132 

118 

106 

98

86 

90 

302 

761 

407

295 

248 

2O7 

178 

157

142 

127 

122 

110 

102

94 

86 

78 

74 

70

67 

61 

61 

58 

55

May

52 

49 

52 

55 

52

46 

44 

41 

39 

37

34 

32 

31 

29 

27

26 

24 

24 

23 

21

20 

19 

19 

18 

16

16 

15 

15 

14 

13 

12

foTt^ys *** 

0 0 

0 0 

948 196

57,834.5 13,300

r 11,498 2,590 

28,921 9,660 

5,056 1,480 

4,639 761 

915 55 

80.1 10 

0 0 

0 0 

0 0

52,057.1 9,660

June

10 

9.6 

8.8 

7.4 

6.7

5.4 

4.4 

4.0 

3.3 

3.0

2.8 

2.4

2.0 

1.8 

1.7

1.5 

1.3 

1.2 

1.0 

.8

.5 

.4 

.1 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

0 

0

0

18 

94 

 34 

55 

12 

0 

0 

0 

0

0

Aug. Sept.

.. Runoff in lfean acre-feet

0 0 

0 0 

30.6 1,880

158 114,700

371 22,810 

1,033 57,360 

163 10,030 

155 9,200 

29.5 1,810 

2.67 159 

0 0 

0 0 

0 0

143 103,200

Peak discharge (base, 9,600 sec.-ft.J. Feb. 5 (1 a.m.) 14.300 sec. -ft.! Feb. 6 (7 a.m.) 19.00O

207481 0-52-12
166 SAUNAS RIVER BASIN

San Antonio River at Pleyto, Calif.

Location. Water-stage recorder, lat. 35°51'55", long. ISO'SS'SO^, in Pleyto Grant, at 

nignway bridge at old. town site of Pleyto, Monterey County, 1.1 miles downstream from 

Copperhead Creek and 15 miles west of Bradley. Altitude of gage, about 720 feet (from 

topographic map).

Drainage area. 282 square miles.

Records available. April to September 1922, December 1929 to September 1950.

Average discharge. 20 years (1930-50), 89.0 second-feet.

Extremes. Maximum discharge during year, 4,010 second-feet Feb. 5 (gage height, 4.56 

reef); no flow Oct. 1 to Dec. 31, July 1 to Sept. 30.

1929-50: 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 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

63

206

106

141

137

106

73.

50

39

27

00

18

12

10

15

85

6B

56

Feb.

48

44

41

179

1,870

1,530

823

504

S76

388

368

288

236

207

185

163

143

133

119

106

103

96

93

86

83

73

70

68

_

_

-

Month

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

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

December. . . . . r .............................

Calendar year 1949 ......................

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

February

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

April. ..................................... Kf___ May........................................

Juno. ... . * . .

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

August. . . . . .

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

tater year 1949-50 ......................

Mar.

63

61

56

54

48

46

44

44

41

39

39

37

36

34

30

28

27

26

26

25

25

24

23

S3

150

122

86

65

50

J41

36

Apr.

31

2622 ' 

19

18

17

19

105

271

202

137

109

83

91

83

78

63

81

54

46

41

36

34

23

87

25

2323 

23

23

-

Seoondfoot-days

0

0

0

9,650.6

1,231.3

8 450

1#459 

1*625

417.9

25 2

0

0

0

13,388.4

May

23

24

24

24

22

21

20

20

20

18

16

16

14

14

13

13

13

12

11

11

9.5

6,9

8.3

7.8

7.4

6.S

5.3

4.6

3.9

a3.6

aS.l . Maxima

0

0

0.

967

206

1,870

150

271

24

2.7

0

0

0

1,870

June

a2.7

a£.4 

a2.o

al.6

al.2

a. 9

.9

.9

.8

.9

1.0

1.0

.S

.8

.8

.8

.8

.7

.6

.5

.5

.5

.5

.4

.4

.3

.2

.1

.1

.1

-

Minimus

d

0

0

0

.1

41

23

17

3.1

.1

0

0

0 .

0

July AUK.

Mean

0

0

0

26.4

39 7

301

47.1

60.8

13.5

.84

0

0

0

36.7

Sept.

Runoff in 

aore-feet

0

0

0 . 19,110

2***44Av 

16, 720

2

OfM

yWVW

3,620

829

Cft 3V

0

0

0

 26fpf°,

discharge (baae, 470 »ec.-it.). Feb. 5 (2:30 a.m.) 4,010 »ec.-ft.
SALIHAS RIVER BASIN 167

Arroyo Seco near Soledad, Calif.

Location. Water-stage recorder, lat. 36°16'50", long. 121'IS* 20", In sec. 16, T. 19 S.,

 Fmr~E., 1.5 miles downstream from Vaquero Creek and 10 miles south of Soledad. Datum 

of gage is 344.20 feet above mean sea level (Corps of Engineers bench nark).

Drainage area. 241 square miles.

Records available.--November 1901 to September I960.

Average discharge. 48 years (1902-50), 170 second-feet.

Extremes. Maximum discharge during year, 8,460 second-feet Feb. 4 (gage height, 9.63

 reel); no flow Oct. 1 to Nov. 10, Aug. 3 to Sept. 30.

1901-50: 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 flqw at times during several years.

Remarks. Records good. No storage or large diversion above station.

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet). 

(Shifting-control method used Nov. 10 to Feb. 4)

Oct. 1 to Feb. 4 Feb. 5 to Sept. 30

0.9 0 1.5 11 2.5 106 0.95 0 1.8 31 3.4 286 

1,0 .2 1.6 16 2.8 154 1.0 .2 1.9 40 3.8 384 

1.1 .8 1.7 22 3.1 211 1.1 .8 2.0 51 4.2 498 

1.2 2.0 1.9 38 3.4 278 1.2 2.1 2.1 63 4.6 635 

1.3 4.1 2.1 56 3.7 355 1.3 4.1 2.2 75 5.0 790 

1.4 7.1 2.3 79 4.0 438 1.4 7.2 2.3 88 5.5 1,040 

1.5 11 2.5 118 6.0 1,420 

Hote. --Same as following table above 1.6 17 2.7 150 6.5 1,920 

4.0Teet. 1.7 24 3.0 202 6.8 2,270

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

O 

0 

0 

0 

0

0 

0 

0 

0 

39

48 

23

16 

12 

10

8.6 

7.8 

7.4 

7.1 

6.8

6.5 

6.5 

6.5 

6.8 

6.8

6.5 

6.5 

6.5 

6.5 

6.2

Dec.

5.9 

5.9

5.9 

5.9 

5.9

5.9

7.4 

31 

29 

18

14 

13 

12 

12 

13

27 

22 

41 

51 

54

37 

31 

 26 

21 

20

19 

18 

17 

16 

15 

15

Jan.

15 

14 

14 

16 

15

14 

14 

49 

108 

58

374 

176 

110 

702 

334

211 

422

288 

197 

151

121 

103 

91 

88 

80

71 

65 

254 

239 

168 

139

Feb.

118 

106 

93 

2,150 

1,600

2,220 

888 

566 

407 

438

376 

312 

271 

236 

210

188 

172 

158 

145 

136

126 

118 

109 

103 

97

92 

88 

84

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Mapc 

Aft 

Mav

June 

July 

Vugu 

.ept

Wa

lendar year 1949

I.......................................

tep year 1949-50 .......................

Mar.

80 

78 

74 

71 

69

67 

65 

63 

61 

52

57 

56 

53 

52 

51

49 

48 

47 

44

46

46 

44 

44

299

358

202 

157 

134 

116 

106 

96

Apr.

as

79 

75 

71 

68

65 

67 

390 

438 

224

188 

165 

147 

136 

124

115 

106 

98 

90

84

80 

76 

74 

70 

66

67 

63 

59 

58 

56

Secondfoot-days

0 

251.0 

614.8

25,821.2

4,701 

11,607 

2,785 

3,486 

1,159 

366.2 

56.8 

.3 

0

25,027.1

May

53 

59 

62 

59 

55

51 

49 

48 

46 

44

42 

40 

40 

38 

38

36 

34 

33 

33 

30

29 

27 

26 

27 

27

26 

25 

22 

21 

20 

19

Maximum

0 

48 

54

2,390 s

702 

2,220 

358 

438 

62 

18 

4.7 o'*

2,22O

June

18 

17 

16 

16 

15

14 

13 

15 

15 

14

14' 

15 

15 

15 

14

13 

13 

13 

12 

11

10 

9.6

8.8 

8.4 

8.0.

7.6 

7.2 

6.8 

6.2 

5.6

July

4.7 

4.1 

3.5 

3.1 

2.9

2.8 

2.6 

2.3 

1.8 

1.8

1.8 

2.4 

3.5 

3.3 

2.8

2.1 

1.7 

1.5 

1.2 

1.1

.9

.8 

.7 

.6 

.5

.5 

.5 

.4 

.4 

.3 

.2

Minimum

0 

0 

5.9

0

14 

84 

44

56 

19 

5.6 

.2 

0 

0

0

Aug.

0.2 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 . 

0 

0

Mean

0 

8.57

19.8

70.7

152 

415 

89.6 

116 

37.4 

12.2 

1.83 

.01 

0

68.6

Sept.

Runoff In 

acre-feet

0 

498 

1,220 .

51,210

9,320 

23,020 

5,520 

6,910 e,3oo sr.8 

0

49,630

PMfc discharge (baae. 1.580 see.-ft.). Jan. 14 (12 ».) 3,030 «ec 

ec.-rt.j Feb. 6 (5 aj».J 4,420 sec.-n.

.-ft.; Feb. 4 (8t30 p.a.) 8,460
168 PAJARO RIVER BASIN

Pajaro River near Chittenden, Calif.

Location.--Water-stage recorder, lat. 36°54'00", long. 121°35'50", at State highway bridge 

O.b mile dovmstream from Pescadero Creek, 1 mile southeast of Chittenden, and 2.5 miles 

downstream from San Benito River. Datum of gage is 82.06 feet above mean sea level 

(levels by Corps of Engineers).

Drainage area. 1,188 square miles.

Records available.--December 1939 to September 1950.

Average discharge.--10 years, 146 second-feet.

Extremes.--Maximum discharge during year, 1,430 second-feet Feb. 5 (gage height, 11.73 

reetj, minimum, less than 0.1 second-foot Sept. 21.

1939-50: Maximum discharge, 11,100 second-feet Apr. 4 or 5, 1941 (gage height, 26.2 

feet, from floodmarks); no flow at times during July and August 1948. 

,^Plood in February 1938 reached a stage of 31.3 feet, from floodmarks.

Remarks.--Records fair. Small amount of storage and many diversions above station for 

irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24

26 

27 

28 

29 

30 

31

Oct.

1.0 

1.0 

1.0 

1.0 

1.0

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.8 

.8 

.8 

.8 

.8

.8 

.8 

.7 

.7 

.8

.8 

.8 

.9 

.9 

.9 

.9

Nov.

0.9 

.8 

.9 

.9 

.8

.8 

1.2 

1.2 

1.8 

3.9

4.8 

4.2 

3.3 

2.6 

2.4

2.0 

2.0 

2.0 

2.0 

2.2

2.2 

2.0 

2.2 

2.4 

2.4

2.4 

2.2 

2.2 

2.4 

2.4

Dec.

2.4 

2.4 

2.2 

2.2 

2.4

2.2 

2.6 

2.8 

2.8 

2.8

2.8 

2.8 

2.8 

3.0 

3.3

3.3 

3.9 

4.2 

4.2 

3.9

3.6 

3.6 

3.3 

3.3 

3.0

3.0 

3.0 

3.0 

3.0 

3.0 

' 3.3

Jan.

3.3 

3.0 

3.3 

3.3 

3.0

3.6 

3.6 

4.8 

5.1 

5.1

6.2 

6.9 

6.5 

154

117

32 

92 

164 

68 

36

21 

15 

13 

11 

10

9.5 

9.0 

92 

172 

84 

60

Feb.

45 

35 

29 

236 

1,020

875 

539 

289 

207 

177

152 

126 

105 

88 

78

67 

58 

52 

44 

40

36 

33 

30 

24 

23

22

21 

19

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Via

lendar year 1949 

ary

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

ter year 1949-50 .......................

Peak discharge (base, 400 sec. -ft. ) . Jan.

Mar.

18 

17 

17 

18 

18

17 

16 

15 

15 

15

16 

16 

16 

17 

16

16 

15 

14 

14 

13

13 

12 

11 

46 

81

62 

40 

29 

24 

20 

18

Apr.

16 

15 

14 

13

13

12 

13 

16 

85 

66

43 

30 

24

21 

18

16 

14 

13 

12 

11

10 

10 

9.5 

9.0 

8.5

8.0 

7.5

7.5

7.0 

6.5

Secondfoot-days

27.0 

63.5 

94.1

12,046.1

1,217.2 

4,470 

675 

548.5 

136.5 

40.5 

20.0 

13.3 

12.2

7,317.8

May

6.5 

6.5 

7.0 

7.5 

6.5

6.0 

6.0 

5.5 

5.5 

5.0

5.0 

5.0 

4.5 

4.5 

4.5

4.5 

4.0 

4.0 

3.5 

3.5

3.5 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

2.5 

2.5 

2.5 

2.5

Maximum

1.0 

4.8 

4.2

1,690

172 

1,020 

81 

85 

7.5 

2.4 

1.0 

.6 

.6

1,020

14 (6:30 p.m.) 465 sec.

June

2.4 

2.3 

2.2 

2.0 

1.9

1.8 

1.7 

1.6 

1.5 

1.5

1.4 

1.4 

1.3 

1.2 

1.1

1.2 

1.2 

1.2 

1.1 

1.1

1.2 

1.1 

1.2 

1.0 

.9

.8 

.8 

.8 

.8 

.8

July

0.7 

.7 

.9 

.8 

1.0

.8 

.8 

.8 

.8 

.8

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.5 

.4 

.4 

.5 

.5

Aug.

0.5 

.4 

.6 

.6 

.5

.4 

.4 

.4 

.6 

.6

.6 

.6 

.6 

.5 

.4

.4 

.3 

.3 

.3 

.3

.4 

.4 

.4 

.3 

.3

.3 

.4 

.4 

.4 

.3 

.4

Minimum Mean

0.7 0.87 

.8 2.12 

2.2 3.04

.4 33.0

3.0 39.3 

19 160 

11 21.8 

6.5 18.3 

2.5 4.40 

.8 1.35 

.4 .65 

.3 .43 

.2 .41

.2 20.0

Sept.

0.3 

.3 

.2 

.2 

.3

.4 

.4 

.4 

.3 

.4

.6 

.6 

.5 

.5 

.4

.5 

.6 

.5 

.4 

.4

.3 

.3 

.4 

.4

.5

.4 

.4 

.4 

.5 

.4

Runoff in 

acre-feet

54 

126 

187

23,890

2,410 

8,870 

1,340 

1,090 

271 

80 

40 

26 

24

14,520

-ft.i Feb. 5 (4:30 a.m.) 1,430

sec.

Mote. No gage-height record Oct. 1-18, Jan. 23-27, Apr. 3-7, May 5 to June 13; discharge computed 

on basis of discharge measurements and record for tJvas Creek near Morgan Hill. Doubtful gage-height 

record Mar. 30 to Apr. 2, Apr. 21 to May 4; discharge computed as explained for no gage-height 

record.
PAJARO RIVER BASIN 169

Pacheco Creek near Dunneville, Calif.

Location.--Staff gage, lat. 36°58'50", long. 121°22'50", in Ausaymas Y San Felipe urant, 

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 1950.

Average discharge.--10 years, 30.5 second-feet.

Extremes. Maximum discharge during year, 710 second-feet tfeb. 5 (gage height, 3.90 feet); 

no now for several months.

1940-50: Maximum discharge, 7,200 second-feet Feb. 2, 1945 (gage height, 15.8 feet, 

from floodsaarks), by slope-area method; no flow at times in 1940, 1943-50.

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.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, in second-feet)

0.8 

.9

1.0

1.1

1.2

0

.6 

2.1 

4.5 

8.0

1.3

1.4

1.6

1.7

1.8

13

19

.34

44

55

2.0 

2.2 

2.4 

2.6 

3.0

84

117

161

218

355

Discharge, in second-feet, water year October 1949 tc September 1950

Day

1

4

b

6

7

8

9

10

11

13

14

15

16

17

18

19

20

21

22

23

24

2b

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

0

0

0

0

0

0

0

0

0

0

0

111

100

40

SI

Feb.

26

25

25

68

332

307

115

56

38

53

50

42

25

18

15

12

10

8.0

6.2

5.6

7.6

3.5

8.0

7.3

6.6

6.6

5.9

5.6

_

_

-

Month

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

Calendar year 1949 ......................

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

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

Hater year 1949-50 ......................

Mar.

5.2

5.2

5.2

5.2

4.5

4.5

4.5

4.5

4.5

4.3

4.0

4.0

4.5

4.5

4.0

4.0

4.0

4.0

3.5

3.8

4.3

7.0

7.3

15

23

15

5.9

5.2

6.2

9.0

9.0

Apr.

9.0

9.0

9.0

9.0

9.0

9.0

9.0

10

11

10

7.3

7.6

9.0

10

10

9.0

9.0

10

10

10

12

15

12

12

14

18

18

18

17

17

-

Seoondfcct-days

0

1,459.9

1 292 9

333 9

1<Z 'I

0

2,556.5

May

18

18

17

17

17

16

14

14

14

14

15

15

15

15

14

10

6.6

3.3

6.2

7.3

10

13

14

14

14

14

13

1212'

11

11

JfayiimllB

0

237

332

23

0

332

June

11

9.0

4.3

3.5

. 3.3

2.1

2.6

2.3

1.6

.5

.5

.4

.9

.9

.3

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Minimum

0

0

0

0

July Aug.

Mean

0-,

4.00

6

OQ

1 44

0

7.00

Sept.

Runoff in 

acre-feet

0

2,890

cW

0

5,060
170 PAJARO RIVER BASIN

Uvas Creek near Morgan Rill, Calif.

Location.--Water-stage recorder, lat. 37°04'00", long. 121°41 1 30", in Las Uvas Grant, 500 

i'eet; 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 1950;

Average discharge. 19 years, 33.4 second-feet.

Extremes.--Maximum discharge during year, 2,710 second-feet Jan. 14 (gage height, 8.87 

reetJ; practically no flow during parts of September..

1930-50: 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. 

Ovas" Dam for municipal supply of Gilroy.

Water diverted at

Rating table, water.year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

2.0 0.04 2.6 13 3.4 108 

2.1 .4 2.7 19 3.7 172 

2.2 1.3 2.8 26 4.0 244 

2.3 2.8 2.9 34 4.4 358 

2.4 5.2 3.0 45 4.8 486 

2.5 8.6 3.2 74 5.2 624

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.Z 

,2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.3 

.3 

.3

Nov.

0.4 

.4. 

.4 

.4 

.4

.4

.5 

.5 

15 

31

6.8 

3.2 

Z.I 

1.8 

1.5

1.4 

1.3 

1.3 

1.2 

1.2

1.2 

1.3 

1.3 

1.3 

1.3

1.2 

1.1 

1.1 

1.2 

1.2

Dec.

1.2 

1.1 

1.3 

1.3 

1.3

1.4 

2.0 

3.6 

2.2 

1.7

1.7 

1.7 

1.7 

1.8 

2.8

3.0 

3.0 

23 

39 

13

a8 

a7 

a6 

a5 

a4

a4

a3 

a3 

2.6 

2.6 

2.4

Jan.

2.4 

2.4 

2.6 

2.2 

2.2

2.2 

2.2 

11 

8.6 

52

62 

24

15 

598 

64

45 

182 

84 

49 

35

27 

23 

21 

20 

18

15 

15 

102 

48 

35 

29

Feb.

26 

23 

21 

369 

303

482 

1S8 

122 

92 

84

66 

55 

48 

42 

38

34 

32

29 

27 

26

24 

22 

21 

21 

20

19 

18 

a!7

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAir

June 

July 

Augu

Sept

Ha

lendar year 1949 

ary

h. ......................................

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

ter year 1949-50 .......................

Mar.

a!6 

a!5 

a!5 

a!4 

a!4

a!3 

13 

12 

12

12

12 

11 

10 

10 

10

10 

10 

10 

10 

10

9.8 

9.8 

9.8

36 

27

20 

17 

14 

13 

12 

11

Apr.

10 

9.8 

9.0 

8.6 

8.6

9.8 

14 

137 

62 

36

30 

26 

24 

22 

20

19 

18 

16 

15 

14

14 

13 

12 

12 

11

9.8 

9.8 

9.8 

9.4 

9.0

Secondfoot-days

6.7 

83.4 

155.4

7,030.1

1,598.8 

2,269 

418.4 

618.6 

203.6 

66.5 

13.7 

7.0 

3.0

5,444.1

May

11 

12 

15 

12 

10

9.0 

8.6 

7.8 

7.2 

7.2

7.2 

 6.1 

6.1 

6.8 

6.4

6.1 

5.8 

5.8 

5.2 

4.9

4.6 

4.4

4.6 

4.6 

4.4

3.8 

3.6 

3.6 

3.4 

3.2 3.2

Maximum

0.3 

31 

39

694

598 

482 

36 

137 

IS 

3.0 

.6 

.3

598

June

3.0 

2.8 

3.0 

2.6 

2.6

2.4

3.0 

2.8 

3.0 

2.8

2.8 

3.0 

2.6 

2.4 

2.6

2.4

3.0 

2.6 

2.2 

2.0

2.0 

2.1 

1.7 

1.5 

1.4

1.2 

1.0 

.8 

.6 

.6

July

0.6 

.6 

.5 

.5 

.6

.6 

.6 

.6 

.5 

.5

a. 5 

a. 5 

a. 5 

a. 5 

.5

' .5 

.5 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.4

.3 

.3

Aug.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2

.2

.3 

.2 

.2 

.3 

.3

.3 

.3 

.2

.2

.2

.2

.1

* .1;i

Sept.

0.1 

.1 

.1 

.1

. ' a.l

Mlnl«u» Mean *£«£

0.2 0.22 13 

.4 2.78 165 

1.1 5.01 303

.2 19.3 13,940

2.2 51.6 3,170 

17 81.0 4,500' 

9.8 13.5 630 

8.6 20.6 1,250 

3.2 6.57 404 , 

.6 2.22 I3Z 

.3 .44 ' 27 " 

.1 .23 : 1* 

.10 6.0

.1 14.9 10.800.

Peafe discharge (baae. 740 «eo.-ft.). Jan. 14 (4»30 a.m.) 2,710 Beo.-ft.j Feb. 6 (2 a.m.> 1,060 

see.-rt.

a Ho gage-h«?tght record; discharge eoaputad on basis of recorded range In stage and noraal r«o*e~ sion curve.
PAJARO RIVER BASIN 171

San Benito River near Willow Creek School, Calif.

Location.--Water-stage recorder, lat. 36°36'30", long. 121°12'00", in NEi sec. 28, T. 15 

S., K. 7 E., 0.9 mile downstream from Willow Creek, 0.9 mile northwest of Willow Creek 

School, and 10 miles northwest of San Benito. Altitude of gage, about 970 feet (from 

topographic map).

Drainage area.--250 square miles.

Records available.--December 1939 to September 1950.

Average discharge.--10 years, 25.6 second-feet.

Extremes.--Maximum discharge during year, 214 second-feet Feb. 6 (gage height,'4.16 feet); 

minimum daily 0.1 second-foot Aug. 18-21, 25, 28, Aug. 30 to Sept. 5.

1939-50: Maximum discharge, 6,200 second-feet Apr. 4, 1941 (gage height, 7.8 feet, 

former site and datum), from rating curve extended above 1,600 second-feet: no flow 

Sept. 19 to Oct. 24, 1947.

Maximum stage known, about 9.0 feet (former site and datum) from floodmarks left by 

high water of 1937-38.

Remarks.--Records fair except those above 100 second-feet, which are poor, 

sions above station for irrigation.

Small diverDischarge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

16 

19 

20

21

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

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

Nov.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2

.2 

.2 

.2

Dec.

0.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3

.2 

.2 

.2

.2 

.3 

.3 

.3 

.3 

.3

Jan.

0.3 

.3

.5

.5

.5 

.6 

1.7 

.6 

.6

4.6 

3.5 

3.6 

10 

4.9

3.4 

5.0 

3.2 

2.7 

2.0

1.7 

1.5 

1.5 

1.5 

1.9

1.5 

1.5 

2.7 

3.2 

2.7 

2.7

Feb.

2.4 

1.9

1.2 

1.5

67 

68 

22 

12 

9.5

30 

22 

12 

8.1 

5.4

3.5 

2.4

2.0 

1.9

1.7

1.5 

1.5 

1.4 

1.2 

1.2

1.4 

1.4 

1.4

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

Hay

June 

July 

Augu 

Sept

Wa

lender year 1949

ter year 1949-50 .......................

Mar.

1.4 

1.4

1.4 

1.2

1.2 

1 4 

1.4 

1.4 

1.2

1.2 

1.2 

1.2

1.1 

1.1

1.1 

.9 

1.1 

1.4 

1.4

1.4 

1.1 

1.1 

11 

27

46 

27 

17 

12 

6.6 

6.1

Apr.

4.1 

2.4

1.5 

1.1

1.0 

1.3 

5.4 

107 

61

36 

27 

22 

16 

13

10 

7.7 

5.4 

3.8 

2.4

1.9 

1.7 

1.5 

1.4 

1.2

1.1 

1.1 

.9 

.6 

.6

£££.

6.2 

6.4 

8.0

3,556.2

71.5 

266.9 

163.4 

344.0 

21.3 

9.3 

7.3 

5.8 

6.2

956.3

Bay

0.6 

1.0 

1.4 

1.5 

1.1

1.0 

1.0 

.9 

.7 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.5 

.5

.5 

.6 

.6 

.6 

.6

.6

'.5 

.4

.4 

.4

Maximura

0.2 

.3 

.3

626

10 

68 

46 

107 

1.5 

.4 

.3 

.3 

.3

107

June

0.3 

.3 

.3 

.4

.3

.3 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

! .3

.3

.5 

.2 

.2

July

0.2 

.2

.2 

.2 

.2

.2

.2 

.2 

.3 

.3

.3 

.3 

.2

.2 

.2

.2

.2 

.3 

.3 

.3

.2 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2 

.2

Aug.

0.3 

.2 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2

.1 

.1 

.1

.1 

.2 

.2 

.2 

.1

.2 

.2 

.1 

.2 

.1 

.1

Sept.

0.1 

.1 

.1 

.1 

,1

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

.3 

.3 

.3 

.3 

.3

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

Minimain Kean acre-feet

0.2 0.20 12 

.2 .21 IS 

.2 .26 16

.2 9.74 7,050

.3 2.31 142 

1.2 10.2 569 

.9 5.92 364 

.6 11.5 682 

.4 .69 42 

.2 .31 18 

.2 .24 14 

.1 .19 12 

.1 .21 12

.1 2.62 '1,900

Peak discharge (base, 150 8ec. -ft.}. --Feb. 6 (4:30 D.m.) 214 sec. -ft. s Apr. 9 (8t30 a.m.} 158
172 PAJARO RIVER BASIN

San Benlto River near Hollister, Calif.

Location. Water-stage recorder, lat. 36°47 I , long. 121°22', in sec, 24, T. 13 S., R. 5 

E., 1,500 feet downstream from Bird Creek, 0.9 mile downstream from Tres Pinos Creek, 

2.7 miles west of Tres Pinos, and 4.8 miles southeast of Hollister. Altitude of gage, 

about 370 feet (from topographic map).

Drainage area. 586 square miles.

Records available. October 1949 to September 1950.

Extremes. Maximum discharge during year, 108 second-feet, Jan. 28 (gage height, 3.19 

reet); no flow for several months.

Remarks. Records fair. Several small diversions above station for irrigation.

Discharge, in aeccnd-feet, rater year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

0

0

0

0

0

0

0

0

0

0

o

.1

0

.1

12

1.2

23

27

4.3

.1

0

0

0

0

0

0

0

23

42

12

24

Feb.

1.0

.8

.S

2.3

3.1

6.8

30

11

3.5

2.5

2.7

2.1

1.6

1.5

1.3

1.2

1.2

1.2

1.1

1.0

.1.0

.8

.8

.7

.6

.6

.6

.6

_

-

Month

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

Calendar year ......................

Febru&ry

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

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

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

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

Mar.

0.6

.6

.6

.6

.6

.7

.7

.7

.8

.8

.8

.9

.8

.9

.9

.9

1.0

.9

1.0

.9

.8

.9

.8

3.0

5.2

3.0

2.1

1.9

1.3

1.2

1.2

Apr.

1.1

1.1

1.2

1.2

1.2

2.2

1.2

3.0

3.7

3.1

3.0

2.7

2.S

2.5

2.5

2.4

2.3

2.0

1.8

1.5

1.5

1.4

2.1

2.3

1.4

1.2

1.2

.6

.6

.7

Secondfcot-days

0

_

QO t

-Tf !

8 a

o

357. S

Hay

0.8

1.0

1.2

1.0

.8

.7

.7

.6

.4

.3

.3

.2

.2

0

O

0

0

0

0

o

o

0

0

0

.1

o

0

0

.1

0

.2

Maximum

0

_

0

42

June

0.2

,4

.4

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.3

.2

.2

.2

.2

.1

.2

.2

.2

.1

.1

O

0

0

O

0

Minimum

O

_

g

o

0

July Aug.

Mean

0

_

1 85

no

1 ffl

0

.98

Sept.

Runoff in 

acre-feet

o

_

335

0

710

Peak discharge (base. 60Q sec.-ft). Ho peak above base.
PAJARO RIVER BASIN 173

Tres Pinos Creek near Tres Plnos, Calif.

Location.--Water-stage recorder, lat. 36°45'20", long. 121°17'00", in Santa Ana y Qulen Sabe

 Grant, 3.5 miles southeast of Tres Plnos, San Benlto 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 1950. December 1922 to May 1923 and Decemoer 1939 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 I.

Extremes. Maximum discharge during year, 218 second-feet Jan. 14 (gage height, 2.09 feet);

 minimum, 0.1 second-foot June 30 to July 5, July 6, Sept. 18, 19-22, 23, 24.

1922-23, 1939-50: 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, 0.1 second-foot 

May 17, 1948, June 30 to July 5, July 6, Sept. 18, 19-22, 23, 24, 1950.

Flood in February 1938 reached a stage of about 9.0 feet, from floodmarks, present 

site and datum.

Remarks.--Records good. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day] Oct.

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

.9

1.0 

1.0 

1.0 

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

Nov.

1.0

1.0

1.0 

1.0

1.1 

1.1

1.3 

1.2

1.2 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

Dec.

1.2

1.2

1.2 

1.3 

1.3 

1.3 

1.3

1.3 

1.4 

1.4 

1.4 

1.4

1.4 

1.5 

1.4 

1.5

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.3 

1.4

Jan.

1.4 

1.5

1.4

1.4 

1.4 

1.6 

1.5 

1.6

1.6 

1.7 

1.4 

11 

21

4.5 

54 

36 

10 

3.6

1.7 

1.6 

1.6 

2.7 

6.7

4.0 

2.2 

31 

48 

15 

7.0

Feb.

4.5 

2.6

2.4

9.4 

9.5 

5.5 

4.0 

5.5

13 

7.8 

5 

3.4 

2.3

1.7 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.5 

1.5 

1.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

1.5 

1.5

1.5

1.5 ' 

1.5 

1.5 

1.5 

1.5

1.5

1.5 

1.5 

1.6 

1.0

1.0 

1.4 

1.0 

.3 

.3

.3 

.4 

.4 

.7 

2.7

7.0 

4.0 

1.7 

.3 

.2 

.2

Apr.

0.2 

.2 

.3 

.3 

.3

.3 

-.3 

.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 

1.2 

1.2

1.2

1.2 

1.2 

1.2 

1.2

Secondfoot-days

21.2 

33.8 

41.8

1,238.1

280.9 

98.7 

44.0 

30.2 

11.5 

6.2 

22.3 

10.9 

12.4

613.9

May

1.2

1.2 

1.2 

1.2 

1.0

.4 

.2 

.3 

.3 

.2

.2 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Maximum

1.1 

1.3 

1.5

191

54 

13 

7.0 

1.3 

1.2 

.3 

.9 

.9 

.7

54

June

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.3 

.2 

.2 

. .2

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.1

July

0.1 

.1 

.1 

.1 

.1

.2 

.8 

.8 

.9 

.9

.8 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9

.8

.3 

.8 

.8 

.8 

.3 

.9

Minimum

0.3 

1.0 

1.2

.3

1.4 

1.5 

.2 

.2 

.2 

.1 

.1 

.3 

.1

.1

Aug.

0.9 

.3 

.8 

.8 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Mean

0.68 

1.13 

1.35

3.39

9.O6 

3.52 

1.42 

1.01 

.37 

.21 

.72 

.35 

.41

1.68

Sept.

0.4 

.6 

.5 

.5 

.5

.6 

.7 

.7 

.7 

.7

.7 

.7 

.6 

.6 

.5

.5 

.6 

.3 

.1 

.1

.1 

.1 

.2 

.2 

.2

.2

.2 

.2 

.2

Runoff in 

acre-feet

42 

67 

83

2,460

557 

196 

87 

60 

23 

12 

44 

22 

25

1,22O

Peak discharge (base, 450 see.-ft.). No peak above base.
174 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 

 Grant, 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 1950.

Average discharge. 13 years, 138 second-feet.

Extremes. Maximum discharge during year, 6,190 second-feet Feb. 6 (gage height, 11.58 

FeeTT; minimum, 11 second-feet July 10.

1937-50: 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-areastudies and logarithmic plotting; minimum, 0.8 second-foot June 25, 1939.

Remarks. Records good. Many small diversions above station for domestic supply.

Rating tables, water year 1949-50 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 19 to Dec. 17, Aug. 26 to Sept. 30)

Oct. 1 to Feb. 5 Feb. 6 to Sept. 30

0.8 14 2.0 85 4.5 718 0.9 12 2.0 72 

.9 16 2.2 111 6.0 1,300 1.0 15 2.3 114 

1.0 18 2.5 159 6.8 1,730 1.3 26 2.7 192 

1.2 25 2.8 216 7.8 2,380 1.6 40 3.1 286 

1.4 35 3.1 286 8.1 2,610 Note. --Same as preced1.7 55 3.5 394 ing table above 3.1 feet.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

a 15 

alS 

alS 

a 15 

a 15

a!5 

al6 

a!7 

a!6 

a!6

a20 

a!7 

a 15 

a 15 

a 15

a!4 

a!4 

a!4 

14 

14

14 

15 

14 

14 

14

16 

14 

14 

14 

14 

14

Nov.

14 

14 

14 

14 

14

14 

15 

16 

120 

84

34 

26 

21 

20 

20

19 

18 

18 

17 

17

17 

17 

17 

17 

19

17 

17 

17 

17 

17

Dec.

17 

17 

17 

17 

17

18 

24 

30 

22 

20

19 

19 

18 

19 

33

26 

76 

153 

95 

47

36 

31 

29 

28 

26

25 

24 

24 

24 

23 

23

Jan.

23 

24 

24 

23 

23

22 

22 

86 

50 

185

304

106 

71 

846 

187

255 

1,370 

405 

218 

156

126 

108 

107 

101 

94

84 

112 

649 

264 

179 

145

Feb.

124 

112 

104 

2,180 

1,830

2,570 

785 

492 

377 

352

289 

249 

223 

203 

186

173 

161 

149 

140 

130

123 

116 

108 

101 

97

95 

94 

90

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mnir

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

87 

83 

80 

78 

78

74 

72 

70 

68 

66

69 

65 

62 

61 

60

58 

61 

59 

66 

64

57 

58 

57 

236 

165

118 

98 

88 

82 

74 

71

Apr.

67 

65 

62 

60 

58

65 

79 

142 

112 

88

80

74 

72 

70 

67

66 

65 

61 

59 

57

56 

52 

52 

52

51

50 

49 

47 

45 

43

Secondfoot-days

464 

701 

997

30,351

6,370 

11,653 

2,485 

1,966 

1,276 

839 

565 

448 

,423

28,187

Peafc discharge (Base, 1,400 sec. -ft.}. Jan. 14 (6 a.m

May

59 

61 

67 

59 

50

47 

45 

44 

43 

42

40 

40 

39 

39 

40

40 

38 

37 

37 

36

33 

34 

37 

38 

35

35 

34 

32 

- 31 

31 

33

Maximum

20 

120 

153

2,350

1,370 

2,570 

236 

142 

67 

32 

20 

17 

22

2,570

June

29 

30 

32 

32 

31

30 

30 

30 

30 

30

31 

32 

30 

30 

31

31 

30 

29 

27 

27

25 

26 

24 

24 

24

24 

24 

24 

22 

20

July

2O 

19 

20 

19 

18

19 

20 

18 

17 

18

17 

19 

17 

18 

18

18 

19 

19 

18 

18

18 

18 

18 

18

17

17 

19 

18 

18 

17 

18

Aug.

17 

16 

16 

16 

17

16 

16 

16 

15 

15

15 

15 

17 

15 

14

14 

14 

13 

13 

13

13 

13 

12 

13 

13

14 

14 

13 

14 

13 

13

Minimum Mean

14 15.0 

14 23.4 

17 32.2

14 83.2

22 205 

90 416 

57 SO. 2 

43 65.5 

31 41.2 

20 28.0 

17 18.2 

12 14.4 

13 14.1

12 77.2

.) 2,180 see. -ft.; Jan. 17 (5:30

Sept.

13 

13 

13 

13 

13

14 

14 

14 

14 

14

14 

13 

13 

13 

13

13 

16 

22 

15 

14

14 

14 

15 

14 

15

14 

14 

14 

14 

14

Hunoff In 

acre-feet

920 

1,390 

1-.980

60,210

12,630 

23,110 

4,930 

3,900 

2,530 

1,660 

1,120 

8S9 

639

55,90O

a.m.) 2,090

sec.-ft.j Feb. 6 (1 a.m.) 6,190 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range In stage and weather' 

records.
STEVENS CREEK BASIN 175

Stevens Creek near Cupertlno, Calif.

Location.--Water-stage recorder and concrete control, lat. 37 0 18'20B , long. 122°04'25", in 

BVff sec. 22, T. 7 S., R. 2 W., at county highway bridge, 0.2 mil© downstream from ' 

Stevens Creek Dam and 2.5 miles southwest of Cupertlno. Altitude of gage, about 385 

feet (from topographic map).

Drainage area. 18.1 square miles.

Records available. January 1930 to September 1950.

Average discharge. 20 years, 11.4 second-feet.

Extremes. Maximum discharge during year, 27 second-feet July 24 (gage height, 1.93 feet); 

no flow Oct. 1 to Nov. 5, Aug. 31 to Sept. 13.

1930-50: 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, 1947-50.

Remarks.--Records good. Plow regulated by Stevens Creek Reservoir beginning In 1936 (usaacie capacity, 4,000 acre-feet); water released during summer.

Discharge, In second-feet, water year October 1949 to September 1950

Bay

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

.1

.2 

.2 

.4

.5

.5 

.6 

.6 

.6 

.6

,6 

.6 

.6 

.6 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.8 

.9 

.9

Dec.

0.9 

.9 

.9 

.9 

.9

1.0 

1.0 

1.1 

1.1 

1.1

1.2 

1.2 

1.4 

1.4

1.5

1.6 

2.0 

3.0 

4.1 

4.6

5.1 

4.0 

2.S 

2.3 

2.3

2.3 

2.5 

2.5 

2.5 

2.2 

2.0

Jan.

2.0 

1.8 

1.3 

1.1 

1.2

1.4 

1.4 

2.1 

2.8 

3.3

4.4 

5.7 

5.7 

7.1 

7.9

9.2 

12 

12 

12

14

15 

15 

15 

15

15

17 

18 

19 

18 

18 

21

Feb.

23 

19 

14 

12 gis

g!2 

S.S 

10 

13 

13.

13 

13 

13 

12 

12

12 

13 

13 

13 

11

10 

10 

10 

10 

10

11 

8.4 

7.1

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

ber, ....................................

 ber. ................................... ber. ...........-------- - .......

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

7.1 

7.1 

6.7 

6.4 

6.4

6.4 

6.4 

6.4 

8.4 

6.4

5.4 

4.8 

4.8 

4.8 

4.8

5.1 

5.1 

5.1 

5.1 

5.4

5.7 

7.1 

7.9 

7.9 

13

16 

13 

11 

11 

11 

11

Apr.

11 

11 

11 

11 

6.2

4.1 

4.8 

7.0 

11 

10

8.8 

8.8 

8.4 

7.5 

6.0

5.1 

5.1 

5.1 

5.4 

5.4

5.4 

5.1 

5.1 

5.1 

5.1

4.6 

4.4 

4.4 

4.4 

4.4

Secondfoot-days

0 

14.9 

62.3

2,713.3

294.4 

341.3 

229.7 

200.7 

321.1 

151.1 

231.5 

47.2 

7.0

1,901.2'

Hay

4.4 

3.9 

4.S 

5.4 

4.S

4.6 

4.6 

3.7 

3.1 

3.1

3.1 

2.6 

2.3 

2.3 

2.3

2.5 

2.6 

2.6 

2.S 

9.S

20 

23 

23 

23 

23

23 

23 

23 

23 

21 

21

Maxima

0 

.9

5.1

25

21 

23 

15 

11 

23 

21 

26 

21 

.8

26

June

21 

21 

21 

21 

21

15 

2.1 

2.0 

1.5 

1.3

1.3 

1.4 

1.4 

1.4 

1.4

1.4 

1.5 

1.5 

1.5 

1.2

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

g-9 

g.5

July

gO. 5 

g.5 

g.5 

g.5 

g.5

g.5 

g.7

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.2 

7.5

12 

12 

12 

22 

26

21 

19 

18 

22 

22 

g21

MlniouB

0 

0 

.9

0

1.1 

7.1 

4.8 

4.1 

2.3 

.5 

.5 

0 

0

0

Aug.

g21 

g9.9 

g2.6 

gl.8 

gl.6

gl.2 

gl.2 

1.2

1.1 

1.1

.9 

.5 

.4 

.4 

.3

.3 

.2 

.2

.7

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

0

Mean

0 

.50 

2.01

7.43

9.50 

12.2 

7.41 

6.69 

10.4 

5.04 

7.47 

1.52 

.23

5.21

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

.1

.5

.7 

.S 

.8 

.7 

.7

.7 

.7 

.4 

.1 

.1

.1. 

.1 

.1 

.2 

.2

Runoff in 

ao re-feet

O 

30 

124

5,380

584 

677 

456 

398 

637 

300 

459 

94 

14

3,770

g Computed from graph based on gage readings furnished by Santa Clara valley Water Conservation District.
176 GITADALUPE 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. IE., 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 1950.

Average discharge. 20 years, 17.0 second-feet.

Extremes.--Maximum discharge during year, 83 second-feet Feb. 6 (gage height, 3.26 feet); 

no now Oct. 1 to Jan. 13, May 12 to Sept. 30.

1930-50: Maximum discharge, 2,670 second-feet Dec. 27, 1931 (gage height, 6.60 

feet), from rating curve extended above 1,800 second-feet; no flow for several months 

each year except 1942, 1943.

Remarks. Records good. Plow regulated by Calero Reservoir beginning 1935 (capacity,

9,ai3 acre-feet) and Almaden Reservoir (capacity, 2,500 acre-feet); water released during summer. Small diversions above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Get. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

6.8 

18

24 

26 

30 

25 

16

15 

9.0 

3.2

1.5 

1.2

1.4 

2.3 

4.5 

5.6 

5.6 

6.4

Feb.

7.6 

7.6 

7.6 

19 

21

47 

14 

19 

19 

16

14 

13 

13 

13 

13

13 

14 

15 

14 

12

9.0 

9.0 

9.0 

9.0 

9.0

9.5 

9.5 

9.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

&i*y

Mar.

9.0 

8.5 

8.5 

8.5 

5.6

4.8 

4.8 

4.8 

4.5 

3.8

4.5 

4.5 

4.5 

3.8 

2.5

1.4 

1.1 

.8 

2.5 

3.2

1.5 

13 

38 

41 

26

28 

29 

32 

32 

31 

29

Apr.

29 

29 

26 

16 

6.8

4.1 

4.1 

9.0 

10 

8.1

5.6 

5.6 

4.5 

4.1 

3.0

4.1 

7.4 

16 

10 

7.6

6.4 

3.8 

4.1 

3.5 

2.7

2.7 

3.5 

3.2 

2.5 

2.5

Secondfoot -days

0 

0

0

3,741.6

201.5 

385.3 

392.1 

244.9 

86.8 

0 

0 

0 

0

1,310.6

May

3.2 

5.6 

11 

17 

20

16 

7.2 

3.8 

1.9

1.0

.1 

0 

0 

0 

0

0 

0 

0 

0 

0

'0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

0

157

30 

47 

41 

29 

20 

0 

0 

0 

0

47

June July

Minimum

0 

0

0

0

0 

7.6 

.8 

2.5 

0 

0 

0 

0 

0

0

Aug.

Mean

0

0 

0

10.3

6.50 

13.8 

12.6 

8.16 

2.80 

0 

0 

0 

0

3.59

Sept.

Runoff in 

acre-feet

0 

0

0

7,420

400 

764 

778 

486 

172 

0 

0 

0 

0

2,600
GUADALUPE RIVER BASIN 177

Guadalupe River at San Jose, Calif.

Location. Water-stage recorder and concrete control, lat. 37°20'00n , long. 121°54'00", 

at san Jose, Santa Clara County, 100 feet downstream from Los Qatos Creek. Altitude of 

gage, about 80 feet (from topographic map).

Drainage area. 131 square miles.

Records available. January 1930 to September 1950.

Average discharge . 20 years, 33.7 second-feet (affected by storage and spreading since

Extremes . Maximum discharge during year, 1,340 second-feet Feb. 6 (gage height, 6.65 

reet) ; no flow during most of year.

1930-50: Maximum discharge, 8,680 second-feet Feb. 27, 1940 (gage height, 11.88 

feet), from rating curve extended above 3,200 second-feet by logarithmic plotting; no 

flow during parts of each year.

Remarks . Records fair. 

station.

Flow regulated by several reservoirs. Small diversions above

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

O

o 

o 

o

0

0

o

0 

4.6

1.1 

.5 

0 

135 

0

0 

62 

67 

0 

0

0 

O 

0 

0. 

- 0

0 

0 

4.8 

O 

0 

O

Feb.

0 

O 

0 

141 

208

671 

123 

14 

3.0 

14

27

12 

0 

0 

1.2

0 

O 

0 

O 

O

0 

O 

O

o

0

0 

0 

0

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

 a

her. ....................................

nber. ...........-------------..-----.-.-

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

o

o ,

O ' o

0

O ! 0 ' 

O 

0 

0

0 

0

0 

0 

0

0 

00 ' o '

.3

O 

0 

0 

5.0 

0

0 

0 

O 

O

o 

o

Apr.

o 

o 

o 

o

0 

0

o

5.0 

0 

0

0 

0

o

0

o

o 

o

0 

0 

0

0 

0 

0 

0

o

0

o

0 

0

o

Secondfoot-days

0 

0 

0

5,823.0

275.0 

1,202.4 

5.3 

5.C 

25,4 

0 

O 

0 

0

1,513.1

May

O 

O 

0 

0 

O

0 

0 

0 

.5 

0

0 

.1 

O 

0 

.5

1.2 

1.0 

1.0 

1.4 

2.2

3.2 

1.7 

0 

.6 

2.2

2.4 

2.6 

2.6 

2.2 

0 

O

Maximum

0 

0 

0

1,360

135 

671 

5.0 

5.0 

3.2 

0 

0 

0 

0

671

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

O 

0

o

16.0

8.87 

42.9 

.17 

.17 

.82 

0 

0 

0 

0

4.15

Sept.

Runoff In 

acre-feet

o 

0 

0

11,550

545 

2,380 

11 

9.9 

50 

0 

0 

0 

0

3,000
178 GUADALUPE RIVER BASIN

Los Capltanelllos Creek at Guadalupe, Calif.

Location. Water-stage recorder and concrete control, lat. 37°13'05", long. 121°54'35", In 

' 8W£ sec. 19, T. 8 S,, R. 1 E., 0.5 mile northwest of Guadalupe and 3.5 miles upstream 

from confluence with Alamltos Creek. Altitude of gage, about 325 feet (from topographic map).

Drainage area. 12.6 square miles.

Records available. January 1930 to September 1950.

Average.discharge. 20 years, 10.1 second-feet.

Extremes. Maximum discharge during year, 102 second-feet Jan. 14 (gage height, 1.65

 feet}; no flow Oct. 1-2, July 3 to Sept. 30.

1930-50: Maximum discharge, 1,160 second-feet Dee. 28, 1931 (gage height, 4.05 

feet), from rating curve extended above 840 second-feet; no flow part of each year except 1937, 1938, 1941-45.

Remarks. Records good. Flow regulated by Guadalupe Reservoir beginning in 1936 (capacity, 

3,500 acre-feet); water released during summer. Small diversions above station.

Rating table, water year 1949-50 (gage height, In feet,

and discharge. In second-feet) 

(Backwater corrections applied Nov. 22 to Jan. 10)

0.22 0 0.6 3.4 1.0 22 

.3 .1 .7 6.2 1.1 30 

.4 .6 .8 10 1.2 41 

.5 1.6 .9 15

Discharge, in aecond-feet, Mater year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

S 

9 

10

11 

12 

13 

14

15

16 

17ie

19 

20

21 

22 

23

24

25

26 

27 

26 

29 

30 

31

Oct.

0 

0 

.1 

.1 

.1

.1

.1 

.1 

.1

.2 

.3 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.2

.2 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.3 

.2 

.2

Nov.

0.2 

.2 

.2 

.2 

.2

.2

.6 

4.0 

3.6

1.6 

1.1 

1.0 

1.0 

1.0

.9 

.8 

.8 

.8 

.8

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.8 

.8

Dec.

o:s

.8 

.8 

.8 

.8

.9

1.2 

1.0 

1.0

.8 

.8 

.8 

.9 

1.4

1.2

1.2 

5.'4 

6.6 

2.4

1.5 

1.3 

1.3 

1.0 

1.1

1.1 

1.1 

1.1 

1.1 

1.0 

1.0

Jan.

1.0

l.l 

l.l

1.0 

1.0

1.0

5.3 

3.0 

13

12 

8.9 

7.8 

34 

12

11 

13 

14 

15 

15

14 

14 

14 

13 

13

10 

8.9 

11 

9.8 

9.8 

9.8

Feb.

9.8 

9.8 

9.3 

22 

28

37 

17 

13 

11 

9.8

8.5 

8.1 

7.7 

7.3 

7.3

7.0 

6.6 

7.3 

7.3 

7.3

7.3 

7.3 

7.3 

7.0 

7.0

7.0 

7.0 

7.0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Nay

June 

July 

Augu 

Sept

Ma

mber. ........... - -------- -_._..--__..

lendar year 194S

 tttb$F

ter year 1949-50 .......................

Mar.

7.0 

7.0 

7.0 

7.0 

7.0

6.6 

6.6 

6.6 

6.6 

6.6

6.2 

6.2 

6.2 

6.2 

6.2

6.2 

6.2 

6.6 

7.3 

7.3

7.3 

7.3 

7.3 

8.5 

7.7

7.3 

8.5 

8.9 

8.9 

8.9 

6.9

Apr.

8.9 

8.9 

8.9 

8.9 

8.9

9.8 

13 

17 

14 

16

17 

16 

12 

7.3 

5.9

5.9 

5.9 

5.6 

5.3 

5.3

5.3 

5.3 

5.3 

5.3 

5.0

5.0 

5.0 

5.0 

5.0 

4.4

Secondfoot -days

5.0 

26.4 

43.2

2,790.0

298.5 

298.0 

222.1 

251.1 

136.7 

30.6 

.2 

0 

0

1,313.6

May

5.3 

7.0 

7.3 

7.0 

8.5

9.3 

9.3 

11 

11 

12

12 

2.6 

2.4 

2.4 

2.2

2.2 

2.1 

2.1 

1.9 

1.8

1.6 

1.6 

1.8 

1.8 

1.8

1.6 

1.6 

1.5 

1.3 

1.2 

1.3

Maxima

0.3 

4.0 

6.6

130

~ 34 

37 

8.9 

17 

12 

1.4 

.1 

0 

0

37

June

1.4 

1.3 

1.3 

1.3 

1.3

1.2 

1.2 

1.3 

1.2 

1.2

1.3 

1.2 

1.2 

1.2 

1.2

1.3 

1.3 

1.2 

1.1 

1.0

1.0 

.9 

.9 

.8 

.6

.4

.4 

.4

.3 

.2

July

0.1 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

b

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug. Sept.

m MlnlBun !». . Mean »»» Mre-feet Runoff In 

0 0.16 9.9 

.2 .95 56 

.8 1.39 86

0 7.64 5,540

1.0 9.63 592 

6.6 10.6 591 

6.2 7.16 441 

4.4 8.37 498 

1.2 4.41 271 

.2 1.02 61 

0 

000 

.01 .4 

000

0 3.60 2,610
GUADALUPE RIVER BASIH 179

Los Gates Creek below Los Oatos, Calif.

Location.--Water-stage recorder, lat. 37°14', long. 121°S8', in Rinconada de Los Gatos 

urant, 0,9 mile northeast of railroad station in Los Gatos, Santa Clara County. Altitude of gage, about 310 feet (from topographic map).

Drainage area. 43.6 square miles.

Records uatos. available. June 1944 to September. 1950. January 1930 to May 1944 at site at Los 

Extremes. Maximum discharge during year, 2,230 second-feet Feb. 6 (gage height, 7.25 

reet), from rating curve extended above 260 second-feet on basis of previous high-water 

rating; no flow during several months.

1930-50: Maximum discharge, 7,110 second-feet Feb. 27, 1940 (gage height, 14.71 

feet, former site and datum), from rating curve extended above 2,300 second-feet by 

logarithmic plotting; no flow during parts of most years.

Remarks. Records good except those above 300 second-feet, which are fair. Plow regulated 

BjTseveral small reservoirs above station. Several diversions above station for Irrigation. Vasona percolation reservoir is Just below station.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Dec. 19 to Jan. 7, 

Jan. 10, 11, 14-20, 27-30, Feb. 4-14, 

Apr. 9 to May 9, May 15 to July l)

2.9 0 3.5 14 4.3 119 

3.0 .2 3.6 21 4.6 195 

3.1 .7 3.8 40 5.0 340 

3.2 1.8 3.9 50 5.3 480 

3.3 4.0 4.0 64 5.6 660 

3.4 7.5 4.1 80 5.9 S80

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov.

0 

0 

0 

0 

0

0 

0 

0 

16 

20

4.4 

2.1 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.3

.4 

.4 

.4 

.4 

.4

.4 

.4

.6 

.6 

.6

Dec.

0.6 

.6 

.6 

.6 

.7

.7 

.8 

2.4 

.8 

.8

.9 

.9 

.9 

1.1 

1.4

1.5 

4.1 

47- 

30 

7.9

1.1 

.9 

.9 

2.5 

1.1

1.1 

1.1 

1.1 

1.1 

1.1 

1.1

Jan.

1.2 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

25 

8.1 

93

84 

30 

1G 

295 

61

54 

196 

86 

47 

24

12 

8.7 

7.2 

7.2 

9.9

1.6 

7.7 

100 

48 

SO 

15

Feb.

9.9 

6.4 

4.7 

277 

407

852 

224 

130 

99 

86

69 

60 

53 

44

31

27 

26 

24 

26 

19

19 

22 

16 

20 

16

10 

9.3 

8.7

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

tfe

lendar year 1949 

ary

Bt..... .................................

Mar.

6.1 

5.8 

5.0 

4.7 

4.4

4.0 

3.6 

3.1 

3.6 

16

16 

11 

3.6 

2.9 

12

13 

9.6 

7.2 

10 

8.7

10 

7.4 

6.2 

37 

26

16 

8.2 

7.3 

6.6 

5.0 

5.4

Apr.

2.7 

7.5 

2.7 

4.7 

6.1

10 

22 

57 

44 

42

27 

26 

23 

21 

21

14 

9.3 

12 

15 

13

14 

15 

14 

9.7 

9.5

9.0 

10 

9.7 

9.1 

5.3

Secondfoot -days

0 

49.7 

117.4

10,134.9

1,279.6 

2,596.0 

285.4 

465.3 

167.5 

26.4 

2.8 

0 

0

5,010.1

Peak dischargee (base, 600 aec.-ft.) . Jan. 14 (5 a.m.)

May

12 

18 

22 

17

14

12 

12 

8.0 

2.9 

4.1

4.2 

4.9 

8.1 

5.2 

1.7

1.6 

1.5 

1.4 

1.4 

1.1

1.1 

1.1 

1.6 

1.7 

1.4

1.4 

1.2 

1.2 

1.1 

1.2 

1.4

Maximum

0 

20 

47

1,500

295 

852 

37 

57 

22 

1.2 

.7 

0 

0

852

June

1.2 

1.2 

1.1 

1.1 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

.9 

.9 

.9 

.8 

.8

.8 

.7 

.7 

.8 

.8

.8 

.7 

.7 

.8 

.8

.8 

.8 

.7 

.7 

.9

July

0.7 

.6 

.5 

.4 

.3

.2 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

-0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug. Sept.

*^»- *- ££!Le?

00 0 

0 1.66 99 

,6 3.79 233

0 27.8 20,100

1.2 41.3 2,540 

4.7 92.7 5,150 

2.9 9.21 566 

2.7 16.2 963 

1.1 5.40 332 

.7 . .88 52 

0 .09 5.6 

00 0 

00 0

0 13.7 9,940

872 sec. -ft.; Feb. 8 (12:40 a.m.) 8,830
180 GUADALUPE RIVER BASIN

Campbell Creek at Saratoga, Calif.

Location. Water-stage recorder and concrete control, lat. 37°15'15", long. 122 0 02'2511 , 

 in Quito Otrant, 0.5 mile southwest of Saratoga, Santa Clara County. Altitude of gage, 

about 500 feet (from topographic map).

Drainage area. 8.8 square miles.

Records available.--October 1933 to September 1950.

Average discharge. 17 years, 8.77 second-feet.

Extremes.--Maximum discharge during year, 222 second-feet Feb. 5 (gage height, 2.95 feet); 

no now during several months.

1933-50: Maximum discharge, 1,650 second-feet Jan. 21, 1943, from rating curve extended above 300 second-feet by logarithmic plotting; maximum gage height, 5.90 feet 

Mar. 1, 1940; no flow during part of each water year, except possibly 1941, 1943, 1945.

Remarks. Records good.. Diversion and regulation above station by San Jose Water Works. 

Revisions.--W 1151: 1940 (maximum gage height).

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet 

(Shifting-control method used NOV. 10, 24-28; May 15-21)

0.62 

.7 

.8 

.9

1.0

1.1

1.4 

2.4

1.2

1.3

1.4

1.5

1.6

1.7

3.8

5.5

7.8

11

15

20

1.8

1.9

2.0 

2.2 

2.4

26

33

41

62

90

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Hov.

O

0 

0 

0 

0

O 

.3 

1.0 

8.9 

3.2

1.2 

1.2 

1.2 

.8 

.3

.3

.3 

.6 

.6 

.5

.5 

.5 

.5 

.6 

.6

.5 

.5 

.5 

.6 

.6

Dec.

O.6 

.6 

.6 

.6 

.6

.6 

1.0 

1.0 

.8 

.6

.7 

.7 

.7 

.8 

1.4

1.0 

2.0 

4.3 

3.8 

1.8

1.0 

.8 

.9 

.9 

1.0

.9 

.9 

.8 

.7 

.7 

.7

Jan.

0.8 

.9 

.8 

.8 

.8

.7 

.7 

6.0 

2.3 

16

11 

5.1 

4.1 

33 

8.4

8.3 

36 

13 

7.8 

5.3

4.4 

3.8 

3.8 

4.1 

3.6

2.8 

3.5 

17 

9.5 

6.5 

5.3

Feb.

4.7 

4.4 

3.6 

50 

53

82 

31 

20 

15 

13

11 

8.9 

7.8 

7.0 

6.5

5.9 

5.5 

5.1 

4.9 

4.5

4.4 

4.2 

4.1 

3.6 

3.4

3.3 

3.3 

3.2

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu

Sept

Wa

lendar year 1949

ter year i949-5d .......................

Mar.

3.2 

2.9 

2.9 

2.8 

2.9

2.6 

2.3 

2.3 

2.4 

2.3

2.6 

2.4 

2.1 

2.1 

1.8

1.8 

2.0 

2.1 

2.3 

2.0

1.8 

2.2 

2.1 

8.9 

5.9

4.1 

3.6 

3.4 

3.0 

2.8 

2.2

Apr.

1.8 

1.8 

1.8 

1.7 

1.8

2.0 

4.2 

7.5 

5.3 

3.8

3.6 

3.3 

3.2 

2.9 

2.5

2.3 

2.0 

1.7 

2.0 

1.5

1.5 

1.2 

1.0 

.9 

.9

1.7 

1.4 

1.1 

.5 

.6

Secondfoot -day s

O 

25.8 

33.5

1,887.7

226.1 

373.3 

87.8 

67.5 

19.8 

O 

O 

0 

O

833.8

May

2.1 

2.4 

2.9 

2.0 

1.8

1.5 

1.2 

.9 

.7 

.6

.4 

.4 

.4 

.7 

.7

.4 

.3 

.2

.1 

.1

0 

0 

.0 

0 

0

0 

0 

0 

0

o

0

Maximum

0 

8.9 

4.3

204

36 

82 

8.9 

7.5 

2.9 

O 

O 

0 

O

82

June July

Minimum

0 

0

.6

0

.7 

3.2 

1.8 

.5 

0 

0 

O 

O

o

0

Aug.

Mean

O * 

.86 

1.08

5.17

7.29 

13.3 

2.83 

2.25 

.64 

O 

0 

0 

0

2.28

Sept.

Runoff in 

acre -feet

O 

51 

66

3,740

448 

740 

174 

134 

39 

0 

0 

0 

0

1,650
COYOTE CREEK BASIN 181

Coyote Creek near Madrone, Calif.

Location. Water-stage recorder, lat. 37°10'06", long. 121°38'55", near southeast corner

 oi' Laguna Seca, 1.2 miles downstream from Anderson Dam at mouth of Canyon, and 1.8 miles 

northeast of Madrone, Santa Clara County. Altitude of gage, about 375 feet (from topographic map). Prior to Mar. 1, 1950, water-stage recorder at site 1.4 miles upstream.

Drainage area.--194 square miles.

Records available.--October 1902 to September 1912, December 1916 to September 1950.

Average discharge. 44 years, 72.3 second-feet.

Extremes. Maximum discharge during year, 365 second-feet Jan. 28 (gage height, 5.60 feet);

 no flow Mar. 22-27, Apr. 13-15.

1902-12, 1916-50: Maximum discharge, 25.000 second-feet probably on Mar. 7, 1911 

(record furnished by Duryea, Haehl & Oilman); no flow at times.

Remarks. .Records good October to February;, fair for remainder of year. Regulation by

 Coyote Reservoir beginning In 1936 (capacity, 24,560 acre feet) and by Anderson Reservoir beginning in 1950 (capacity, 75,000 acre-feet); water released during summer. No 

large diversion.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.1 

2.1 

1.9

1.3

1.2 

1.4 

1.2 

1.0 

1.2

1.3 

1.0 

.9 

.9 

1.0

1.4 

1.4 

1.6 

2.0 

1.9

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

1.9 

2.0 

2.0 

2.0

Nov.

2.0 

2.0 

2.0

1.7 

2.3 

2.0 

4.4 

4.4

2.3 

2.0 

2.0 

1.9 

1.9

1.7 

1.9 

1.9 

1.9 

1.8

1.6 

1.5 

1.6 

1.5 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

Dec.

1.4 

. 1.4 

1.3

1.3

1.4 

1.7 

2.0 

1.6 

1.4

1.4 

1.4 

1.4 

1.4 

1.6

1.5 

1.5 

2.1 

2.7 

1.8

1.6 

1.6 

1.5 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4 

1.4

Jan.

1.4 

1.6 

1.6

. 1.6

1.6 

1.6 

3.0 

2.0 

2.6

4.0 

3.0 

2.0 

8.8 

3.4

4.1

6s

122 

178 

163

40 

55 

52 

69 

113

152 

148 

164 

38 

49 

102

Feb.

87 

55 

54 

59 

44

88 

50 

80 

72 

48

44 

69 

69 

68 

67

67 

67 

67 

67 

59

53 

53 

51 

43 

41

41 

37 

34

Month

Ooto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

8,4 

8.4 

5.9 

aS. 7 

aS. 5

5.3 

5.9 

7.0 

7.0 

7.0

7.0 

6.2 

5.3 

5.3 

4.4

5.0 

5.0 

4.2 

4.4 

4.1

4.3 

eO 

eO 

eO 

eO

eO 

eO 

13 

12 

9.8 

9.7

Apr.

6.6 

5.9 

5.2 

6.5 

4.0

7.1 

8.7 

12 

25 

16

9.7 

1.1 

eO 

eO 

eO

3.1 

6.9 

7.4 

6.7 

7.0

6.4 

7.8 

8.8 

8.1 

5.4

5.7 

6.2 

5.2 

8.4 

9.2

Secondfoot-days

50.2 

58.3 

47.5

9,271.3

1,556.9 

1,634 

165.8 

210.1 

522.0 

898 

266\0 

93.3 

86.0

5,588.1

May

11 

11 

12 

9.3 

8.3

8.9 

8.5 

8.0 

4.8 

7.9

9.3 

12 

15 

17 

17

18 

17 

18 

20 

22

24 

25 

24 

26 

28

25 

22 

22 

20 

25 

26

Maximum

2.1 

4.4 

2.7

388

178 

88 

13 

25 

28 

34 

34 

9.3 

11

178

June

28 

29 

29 

29 

28

28 

28 

26 

26 

29

29 

29 

31 

31 

32

32 

32 

34 

31 

31

31 

31 

31 

31 

31

31 

30 

30 

30 

30

July

32 

32 

29 

34 

26

e6 

el 

e3 

e6 

e4

e3 

e4 

e6 

5.6 

1.8

1.4 

2.1 

2.9 

5.6 

5.4

9.3 

8.4 

5.5 

7.4 

6.4

4.0 

3.4 

2.4 

2.9 

3.4 

?.l

Minimum

0.9 

1.4 

1.3

.9

1.4 

34 

0 

0 

4.8 

26 

1 

.2 

.6

0

Aug.

1.8 

2.2 

.8 

1.2 

2.5

2.6 

1.4 

.9 

1.0 

1.7

1.2 

.2 

.8 

.6 

.7

214 

3.1 

5.5 

4.6 

4.0

4.0 

2.1 

2.3 

1.8 

1.1

2.0 

8.2 

. 8.3 

8.0 

7.0 

9.3

Mean'

1.62 

1.94 

1.53

25.4

50.2 

58.4 

5.35 

7.00 

16.8 

29.9 

8.58 

3.01 

2.87

15.3

Sept.

11 

8.1 

3.5 

4.9 

3.2

4.4 

4.3 

3.1 

2.9 

3.4

2.6 

3.0 

3.0 

2.6 

2.1

1.7 

2.3 

1.8 

1.9 

2.1

1.9 

. .9 

1.6 

3.2 

1.8

1.2 

.7 

.6 

.7 

1.5

Runoff in 

acre-feet

100 

116 

94

18,380

5,090 

3,240 

329 

417 

1,040 

1,780 

528 

185 

171

11,090

a Ho gage-height record; discharge interpolated.

e Stage-discharge relation indefinite; discharge computed on basis of Information about construction work at dam upstream and pumpage at plant downstream.

207481 0-52-13
182 COYOTE CREEK BASIN

Coyote Creek near Edenvale, Calif.

Location. Water-stage recorder and concrete control, lat. SV'ie'lS", long. 121°47 I 55M , 

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 1950.

Average discharge. 34 years, 37.2 second-feet; affected by storage and spreading since 

iyab.

Extremes.--Maximum discharge during year, 143 second-feet Jan. 28 {gage height, 3.29 feet); 

no now most of year.

1916-50: Maximum discharge, 10,000 second-feet Feb. 10, 1922 (gage height, 12.8 

feet, from floodmarks), from rating curve extended above 4,900 second-feet parallel to 

1917 curve defined by current-meter measurements to 8,400 second-feet; no flow at times 

during each year.

Remarks.--Records fair. Water pumped from wells along creek above station for irrigation. 

Plow regulated by Coyote Reservoir beginning in 1936 (capacity, 24,560 acre-feet), by 

Anderson Reservoir beginning in 1950 (capacity, 75,000 acre-feet) and by detention in 

percolating reservoir 6 miles above station; water released during summer.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

2.16

2.2

2.3

2.4

2.5

2.6

2.2

5.5

12

2.7

2.8

2.9

20

31

45

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

Jan.

0 

0 

0 

0 

0

0

o

0

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

0

o

0 

0

o

41

17 

0

o

Feb.

20 

10 

.3 

0 

0

.2 

4.2 

0 

14 

5.7

'o .2

0 

1.3 

£.7

1.8 

1.0 

.5 

.7 

.6

0 

0 

0 

0 

0

0 

0 

O

mber. ...........------------- .......

lendar year 1949

ter year 1949-50 .......................

Mar. Apr.

Secondfoot -days

0 

0 

0

450.2

58 

63 2 

O 

0 

0 

0 

0 

0 

0

121.2

May

Maximum

0 

0 

0

193

41 

20 

0 

0 

0 

0 

O 

0 

0

41

June July

Minimum

0 

O 

0

0

0 

0 

0 

0

o

0 

0 

0 

0

0

Aug.

Mean

0

o 

o

1.23

1.87 

2.26 

0 

O 

0 

0 

0

o 

o

,33

Sept.

Runoff In 

acre -feet

0

o

0

893

115

125 

0. 

0 

0 

0 

0 

0 

0

240
ALAMEDA CREEK BASIN 183

Alameda Creek near Nlles, Calif.

Location. Water-stage recorder and concrete control, lat. 37°35'15", long. 121°57'35", in 

Arroyo de la Alameda Grant, 0.2 mile downstream from railroad bridge and 1.2 miles northeast of Miles, Alameda County. Altitude of gage, about 100 feet (from topographic map).

Drainage area. 633 square miles.

Records available. October 1916 to September 1950.

Average discharge, 33 years (1916-19, 1920-50), 76.0 second-feet.

Extremes . Maximum discharge during year, 1,380 second-feet Jan. 17 (gage height, 5.55 

reet); no flow for several months.

1916-50:. Maximum discharge, 13,900 second-feet Feb. 10, 1922 (gage height, 12.44 

feet, site and datum then in use), from rating curve extended above 7,600 second-feet; 

no flow at times.

Remarks. Records good. Flow regulated by Calaveras Reservoir beginning in 1925 (usable 

capacity, 96,900 acre-feet). Diversions for San Francisco water supply and other uses 

above station.

Cooperation. Gage-height record collected in cooperation with city of San Francisco.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

1.6 0 2.2 7.4 2.8 29 3.7 183 

1.7 .4 2.3 9.9 2.9 35 3.9 252 

1.8 1.1 2.4 13 3.0 42 4.0 295 

1.9 2.2 2.5 16 3.1 53 4.3 445 

2.0 3.6 2.6 20 3.3 85 4.7 710 

2.1 5.4 2.7 24 3.5 129

Discharge, in second- feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

IS 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.8 

3.3 

114 

40

13 

690 

287 

102 

38

18 

10 

9.9 

9.4 

7.2

6.0 

8.2 

475 

342 

134 

60

Feb.

36 

24 

16 

42 

145

308 

248 

127 

76 

60

52 

45 

34 

26 

19

14 

11 

9.2 

8.2 

7.2

6.8 

6.4 

6.2 

5.8 

5.6

5.2 

5.0 

4.8

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Hare 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

4.3 

4.1 

3.9 

3.9 

3.9

3.9 

3.8 

3.4 

3.4 

3.4

3.9 

3.9 

3.4 

3.3 

3.0

3.0 

3.2 

3.3 

3.6 

3.8

3.3 

3.9 

3.8 

39 

52

36 

22 

16 

13 

11 

9.4

Apr.

8.4 

7.9 

7.0 

6.4 

5.8

5.8 

11 

17 

18 

18

13 

10 

9.4 

8.2 

7.2

6.6 

6.0 

5.2 

4.8 

4.3

4.3 

3.9 

3.6 

3.4 

3.3

3.0 

2.9 

2.7 

2.7 

2.9

Secondfoot -days

0 

0 

0

2,829.9

2,367.8 

1,353.4 

281.8 

212.7 

77.1 

56.4 

24.5 

5.1 

0

4,378.8

May

3.6 

4.3 

5.2 

4.3 

3.6

3.3 

3.3 

3.0 

3.0 

2.7

2.4 

2.3 

2.3 

2.4 

2.0

2.0 

2.0 

2.0 

2.0 

2.0

1.8 

2.0 

2.0 

1.8 

1.8

1.8 

1.8 

1.7 

1.6 

1.5 

1.6

Maximum

0 

0

0

605

690 

308 

52 

18 

5.2 

3.2 

1.0 

 .6 

0

690

June

1.5 

1.6 

1.8 

2.0 

2.0

2.2 

2.0 

2.0 

1.8 

1.8

1.7 

1.7 

1.8 

2.0 

2.0

2.0 

2.3 

2,9 

3.2 

2.7

2.0 

1.8 

1.6 

1.5 

1.5

1.4 

1.5 

1.5 

1.4 

1.2

July

0.9 

.9 

.8 

.9 

.8

.8 

.8 

.7 

.9 

.9

.8 

.7 

.7 

.8 

.8

.9 

1.0 

1.0 

.9

.7

.7 

.6 

.6 

.6 

.8

< .9 

i .8 

.7 

.8 

.7 

.6

Aug.

0.5 

.4 

.3 

.4 

.6

.5

.4 

.3 

.3 

.3

.2 

.2 

.2 

.2 

.2

.1 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sept.

Minimum Mean «^"ee?

00 

00 0 

0 

00 0

0 7.75 5,610

0 76.-4 4,700 

4.8 48.3 2,680 

3.0 9.09 559 

2.7 7.09 422 

1.5 2.49 153 

1.2 1.8S 112 

.6 .79 49 

0 ..16 10 

00 0

0 12.0 8,680
184 SAN LORENZO CREEK BASIN

San Lorenzo Creek at Haywai>d, Calif.

Location. Water-stage recorder, lat. 37°41',long. 122°Q4', in San Lorenzo Grant, at highway bridge on B Street, Just outside city limits of Hayward, Alameda County, 0.5 mile 

downstream from Palomares Creek. Datum of gage is 133.16 feet above mean sea level, 

(datum of 1929).

Drainage area. 38.0 square miles.

Records available. January to September 1940", October 1946 to September 1950.

Extremes. Maximum discharge during year, 921 second-feet Jan. 17 (gage height, 7.64 feet); 

no now during several months.

1940, 1946-50: Maximum discharge observed, 3,440 second-feet Feb. 27, 1940 (gage 

height, 13.13 feet), by slope-area method; no flow during part of each year.

Flood of Jan. 24, 1942, reached a stage of 15.7 feet, from floodmarks.

Remarks. Records good. A few very small diversions above station.

Rating table, water year 1949-5O (gage height, in feet, 

and discharge, In second-feet)

2.03 0 2.6 12 3.4 71 

2.1 .2 2.7 15 3.8 115 

2.2 1.3 2.8 20 4.2 17O 

2.3 3.1 2.9 27 4.8 268 

2.4 5.5 3.0 35 5.6 416 

2.5 8.2 3.2 53 6.5 614

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17

18 

19 

20

21 

22

23 

24 

25

26

27 

28 

29 

30 

31

Oct. Nov.

0 

O 

0 

0 

0

0 

O 

0 

1.0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

O 

O 

0 

O

0

.1

0 

0 

0

0 

0 

0 

.3 

0

0 

.6 

2.7 

2.7 

.9

.4 

.3 

.4 

.4

.4

.4 

.3 

.2 

.3 

.3 

.3

Jan.

0.3 

.6 

.6 

.5 

.4

.3

.3 

4.3 

2.0 

7.6

6.0 

5.0 

1.6 

25 

2.9

43 

610 

111 

40 

21

15 

13 

16 

14 

11

9.7 

22 

170 

53 

33 

24

Feb.

20 

17 

16 

149 

75

147 

66 

48 

42 

49

34 

28 

25 

23 

21

19 

18 

17 

16 

15

14 

13 

13 

13 

12

12 

11 

11

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

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

lendar year 194S r. ....................

h. ......................................

ter year 1949-50 .......................

Mar.

11 

10 

10 

10 

10

9.4 

9.1 

8.8 

8.5 

8.2

9.4 

7.9 

7.9 

7.9 

7.6

7.6 

8.5 

7.9 

11 

8.8

7.9 

9.4 

14 

131 

46

27 

20 

18 

15 

14 

12

Apr.

11 

10 

10 

9.4 

8.8

11 

32 

56 

28 

18

16 

15 

14 

13f 

12,

11 

10 

9.7 

9.1 

8.5

8.2 

7.9 

7.6 

7.3 

7.1

7.1 

6.8 

6.5 

6.2 

6.0

Secondf ox) t -days

0 

1.0 

11.0

1,909,8

1,263.1 

944 

493.8 

383.2 

143.6 

. 54.7 

.5 

0 

0

3,294.9

Peak discharge (base, 350 sec. -ft.). Jan. 17 (7:30: a.

Hay

9.1 

8.5 

8.8 

6.5 

6.2

6.0 

5.7 

5.5 

5.2 

5.0

4.7 

4.7 

5.2 

5.2 

5.2

5.0 

4.7 

4.5 

3.8 

3.8

3.3

3.3 

3.1 

3.1 

3.1

3.1 

2.9 

2.7 

2.5 

1.6 

1.6

Maximum

0 

1.0 

2.7

232

610 

149 

131 

56 

9.1 

2.9 

.1 

O 

0

610

June

2.1 

2.1 

2.0 

2.0 

2.1

2.1 

2.1 

2.0 

2.3 

2.5

2.7 

2.5 

2.3 

2.7 

2.9

2.7 

2.5 

2.3 

2.0 

1.4

1.3 

1.6 

1.3 

1.2 

1.0

.9

.8 

.6 

.4 

.3

July

0.1 

.1 

.1 

.1 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug. Sept.

«**"«» 5SS£

O O 0 

0 .03 2.0 

0 .35 22

0 5.23 3,790

.3 40.7 2,510 

11 53.7 1,870 

7.6 15.9 979 

6.0 12.8 760 

1.6 4.63 285 

.3 1.82 106 

00 

0 .02 1.0 

0 

00 0

0 9.03 6,540

m.) 921 sec. -ft. j Jan. 28 (4 a.m.) 376 eec.-
KERN RIVER BASIN 

Kern River near Kernville, Calif.

185

Location. Water-stage recorder, lat. 35°56', long. 118°29', in UE& sec. 14, T. 23 S., R. 

32~E7, 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 1950.

Average discharge. 38 years, 703 second-feet, combined flow of Kern River near Kernville 

ana Kern Kiver No. 3 Canal.

Extremes. Maximum discharge during year, 2,420 second-feet June, 1 (gage height, 8.78 

reet); minimum, 0.2 second-foot Mar. 12.

1912-50: Maximum discharge, 9,690 second-feet (unregulated) Jan. 17, 1916 {gage 

height, 8.8 feet, datum then in use), from rating curve extended above 4,100 secondfeet; no flow at times during period July 31, 1924, to Feb. 7, 1925.

Extremes do not include flow in Kern River No. 3 Canal.

Remarks. Records good except those for period of ice effect, which are poor. Kern River 

no. a Canal (see p. 189) diverts 1 mile above station.

Cooperation. Water-stage recorder graph and 12 discharge measurements, furnished by

soutnern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

- 22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.4 

.2.4 

2.4 

2.4 

2.4

2.4 

2.2 

2.2 

2.5 

2.4

2.4 

2.2 

2.1 

2.1 

2.1

2.1 

2.1 

2.2 

2.1 

2.1

2.1 

2.1 

2.0 

2.0 

2.1

56 

99 

4.8 

' 3.6 

3.1 

3.0

Nov.

3.0 

2.8 

2.S 

2.8 

2.8

3.0 

3.0 

3.0 

3.1 

6.3

3.1 

3.1 

3.0 

3.0 

2.8

2.S 

2.8 

2.8 

3.0 

3.0

2.8 

2.8 

3.0 

3.0 

3.0

3.1 

91 

209 

195 

195

Dec.

187 

64 

*.6 

1.8

1.7

1.8 

1.8 

2.2 

1.8 

2.0

2.0 

1.8 

2.4 

2.4 

2.2

2.2 

2.4 

2.5 

2.4 

2.1

1.5 

bl.5 

bl.5 

bl.5 

bl.5

bl.5 

bl.5 

bl.5 

bl.5 

bl.5 

bl.5

Jan.

bl.5 

bl.5 

bl.5 

bl.5 

bl.5

bl.5 

*bl.5 

bl.5 

bl.5 

bl.5

bl.5 

bl.5 

bl.5 

bl.5 

bl.5

b2.0 

b2.5 

*b2.5 

2.5 

2.5

2.5 

2.6 

2.6 

3.0 

2.6

1.8 

2.1 

2.5 

12 

2.0 

1.8

Feb.

1.6 

1.7 

1.6 

Z.Z 

87

M,040 

211 

8.6 

6.6 

6.0

6.0 

5.3 

4.9 

4.4 

4.2

4.2 

4.0 

4.0 

4.0 

53

4.0 

3.6 

3.6 

3.6 

3.6

3.6 

3.4 

3.4

Month ^

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

3.4 

3.4 

3.4 

3.4 

3.4

19 

5.3 

2.4 

1.5 

1.0

.7 

.4 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.0 

1.8 

3.2 

13 

3.0

2.0 

1.8 

1.8 

2.1 

2.1 

1.6

Apr.

2.9 

75 

146 

213 

267

£77 

220 

220 

167 

113

108 

118 

123 

79 

60

85 

176 

277 

409 

596

825 

1,010 

1,070 

1,040 

1,120

1,200 

1,310 

1,230 

1,070 

1,000

Secondfoot -days

225,0 

769.7 

303.6

40,427.4

70.0 

1,489.1 

98.5 

14,606.9 

27,762 

23,932 

1,839.3 

65.0 

71.7

71,232.8

May

978 

795 

702 

571 

487

400 

319 

257 

233 

233

275 

242 

245 

296 

454

694 

880 

1,030 

1,060 

1,240

1,390 

1,340 

1,290 

1,140 

1,170

1,360 

1,390 

1,580 

1,700 

1,930 

2,090

Maximum

99 

209 

187

1,240

12 

1,040 

19 

1,310 

2,090 

2,120 

243 

2.3 

2.8

2,120

June

2,120 

1,850 

1,810 

1,600 

1,500

1,500 

1,160 

858 

730 

726

685 

583 

550 

558 

575

592 

605 

579 

600 

680

770 

703 

600 

506 

340

247 

217 

220 

235 

233

July

207 

180 

170 

144 

120

99 

64 

94 

176 

243

132 

85 

36 

S.6 

2.8

2.3 

1.9 

1.6 

1.6 

1.5

1.4 

1.4 

1.4 

1.6 

1.6

1.7 

1.9 

2.0 

2.0 

2.0 

2.0

Minimum

2.0 

2.8 

.6

.6

1.5 

1.6 

.4 

2.9 

233 

217 

1.4 

2.0 

1.9

.4

Aug.

2.1 

2.1 

2.1 

2.3 

2.3

2.3 

2.3 

2.3 

2.1 

2.1

2.1 

2.1 

2.0 

2.0 

2.1

2.0 

2.0 

2.0 

2.0 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.0 

2.0 

2.0 

2.0 

2.1 

2.0

Mean

7.26 

25.7 

9.79

111

2.26 

53.2 

3.18 

487 

896 

79S 

59.3 

2.10 

2.39

195

Sept.

1.9 

2.0 

2.1 

2.1 

2.3

2.3 

2.3 

2.3 

2.0 

2.0

2.0 

2.0 

2.1 

2'.1 

2.4

2.5 

2.7 

2.7 

2.5 

2.5

2.5 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.7 

2.3

Runoff in 

acre-feet

446 

1,530 

602

80,190

139 

2,950 

195 

28,970 

55,070 

47,470 

3,650 

129 

142

141,300

* Winter discharge measurement made on this day. 

b Stage-diacharge relation affected by 'ice.
186 KBRN RIVER BASIN

Combined discharge, in second-feet, of Kern River and Kern River No. 3 Canal near Kernville, Calif, 

water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16. 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

Ill 

111 

1O9 

108 

108

111 

112 

115 

122 

126

129 

127 

124 

122 

123

126 

128 

126 

128 

126

129 

131 

129 

128 

127

118 

116 

128 

126 

125 

124

Nov.

123

122 

121 

121 

121

123 

123 

125 

129 

290

183 

163 

178 

187 

183

183 

181 

178 

179 

179

179 

176 

175 

175 

177

182 

183 

214 

195 

195

Dec.

187 

157 

158 

166 

158

155 

156 

177 

173 

169

138 

114 

142 

172 

175

169 

169 

180 

194 

171

154 

180 

186 

182 

174

172 

174 

172 

'170 

166 

162

Jan.

170 

166 

132 

136 

142

140 

152 

178 

168 

148

174 

178 

162 

178 

156

174 

244 

274 

262 

258

260 

265 

278 

345 

251

194 

220 

258 

222 

203 

199

Feb.

187 

206 

205 

261 

674

1,640 

808 

486 

409 

400

441 

367 

347 

338 

342

370 

356 

354 

380 

442

401 

385 

394 

408 

435

459 

476 

466

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apri 

MAV

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

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

St......................................

ter year 1949-50 .......................

Mar.

499 

500 

500 

493

517

555 

503 

490 

462 

438

417 

394 

388 

379 

366

365 

372 

373 

376 

399

411 

435 

427 

494 

480

461 

469 

472 

488 

508 

531

Apr.

573 

663 

749 

825 

881

890 

834 

833 

779 

725

720 

724 

730 

689 

671

695 

786 

888 

1,020 

1,210

1,440 

1,620 

1,680 

1,650 

1,730

1,&20 

1,930 

1,850 

1,690 

1,620

Secondfoot-days

3,773 

5,043 

5,172

138,770

6,287 

12,457 

13,962 

32,915 

46,940 

42,194 

16,946 

6,380 

5,138

197;, 207

May

1,600 

1,510 

1,320 

1,190 

1,100

1,020 

933 

872 

849 

848

890 

859 

865 

914 

1,070

1,310 

1,500 

1,640 

1,680 

1,860

2,010 

1,960 

1,900 

1,750 

1,780

1,970 

2,000 

2,190 

2,310 

2,540 

2,700

Maximum

131 

290 

194

1,860

345 

1,640 

555 

1,930. 

2,700 

2,730 

836 

325 

248

2,730

June

2,730 

2,460 

2,420 

2,210 

2,110

2,110 

1,770 

1,470 

1,340 

1,340

l',290 

1,190 

1,160 

1,170 

1,180

1,200 

1,220 

1,190 

1,210 

1,290

1,380 

1,310 

1,210 

1,110 

946

852 

822 

824 

843 

837

July

810 

783 

773 

744 

719

696 

662 

690 

771 

836

776 

679 

630 

600 

557

512 

475 

455 

433 

410

388 

372 

362 

357 

352

390 

395 

363 

337 

318 

! 301

Minimum '

108 

121 

114

107

132

187 

365 

573 

848 

822 

301 

150 

142

108

Aug.

310 

325 

309 

284 

268

255 

240 

230 

323 '216

210 

206 

200 

198 

196

188 

182 

178 

177 

178

181 

175 

174 

169 

165

165 

162 

157 

155 

154 

150

Mean

122 

168 

167

380

203 

445 

450 

1,097 

1,514 

1,406 

547 

206 

171

540

Sept.

150 

147 

149 

156 

160

176 

209 

248 

234 

212

200 

190 

181 

176 

170

168 

171 

181 

178 

174

166 

161 

156 

152 

151

148 

147 

143 

142 

142

Runoff in 

acre-feet

7,480 

10,000 

10,260

275,200

12,470 

24,710 

27,690 

65,290 

93,100 

83,690 

33,610 

12,650 

10,190

391,100
KERN RIVER BASIN 187

Kern River below Isabella dam site, Calif.

Location. Water-stage recorder, lat. 35°39', long. 118°29', in sec. 19, T. 26 S., R. 33 

E., immediately downstream from dam site, 1.2 miles southwest of Isabella and 1.3 miles 

downstream from South Fork. Altitude of gage, about 2,400 feet {from topographic map).

Drainage area. 2,080 square miles.

Records available. April 1945 to September 1950.

Extremes. Maximum discharge during year, 3,990 second-feet Feb. 6 (gage height, 10.28 

reet); minimum, 9.2 second-feet Aug. 29, 30, 31, Sept. 1, 2.

.1945-50: Maximum discharge, that of Feb. 6, 1950; minimum, 6.8 second-feet Sept. 25 

1949. *

Remarks. Records fair. Borel Canal (see p. 190) diverts 5 miles above station; many 

aiversions above station for irrigation.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Oct. 1 to Feb. 5, July 13 to Aug. 26)

3.5 7.0 4.6 92 6.5 740 

3.6 12 4.8 129 7.O 990 

3.8 22 5.0 173 7.6 1,310 

4.0 33 5.3 254 8.2 1,680 

4.2 48 5.6 350 9.0 2,390 

4.4 66 6.0 510

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

88 

29 

30 

31

Oot.

61 

105 

105 

103 

105

106 

108 

108 

116 

121

127 

129 

129 

127 

121

123 

129 

127

133 

131

135 

137 

142 

137 

137

112 

84 

161 

140 

135 

137

Mov.

135 

133 

129 

129 

125

129 

127 

127 

131 

259

254

171 

176 

188 

133

185 

183 

178 

176 

178

176 

176 

173 

108 

34

31 

30 

- 29 

28 

28

Dec.

29 

29 

28 

25 

24

23 -23 

23 

22 

22

22 

20 

19 

19 

19

19 

19 

21 

22 

20

19 

19 

19 

18 

18

18 

18 

18 

18 

18 

13

Jan. '

18 

13 

18 

17 

17

17 

17 

19 

20 

18

19. 

19 

18 

22 

20

19 

23 

28 

25 

24

24 

26 

28 

38 

28

23 

23 

37 

38 

28 

23

Feb.

22 

21 

20 

22 

202

2,260 

1,290 

405 

131 

106

183 

96 

79 

70 

83

178 

159 

57 

54 

51

53 

51 

50 

47 

50

54

58 

60

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

»y.

June 

July 

Augu 

Sept

Va

Bber nber. ...........--..---.----------------

lendar year 194'» .......................

enber. .......... ...» .... 

ter year 1949-50 .......................

Mar.

61 

60 

61 

59 

65

96 

72 

54 

42 

55

30 

26 

25 

25 

23

25 

24 

23 

22 

22

22 

22 

22 

32 

75

32 

31 

30 

29 

32 

43

Apr.

1 

1

I1

1

1 

1 

1 

1 

1

Secondfoot -days

3,771 

4,092 

649

57,126.8

704 

5,912 

1,220 

19,777 

31,518 

.25,937 

2,237 

455.4 

444.7

96,717.1

68 

108 

223 

326 

401

461 

441 

385 

385 

316

263 

263 

260 

234 

19O

188 

248

368 

564 

795

080 

280 

370 

350 

350

380 

500 

470 

310 

200

May

1,170 

1,040 

915 

800 

690

600 

492 

405 

343 

323

357

360 

330 

350 

488

740 

995 

1,140 

1,170 

1,320

1,490 

1,470 

1,390 

1,280 

1,260

1,430 

1,490 

1,630 

1,780 

2,030 

2,240

Maximum

161 

259 

29

1,390

37 

2,260 

96 

1,500 

2,240 

2,350 

220 

18 

16

2,350

June

2,350 

2,030 

1,930 

1,710 

1,570

1,570 

1,320 

1,000 

310 

795

770 

668 

591 

604 

609

636 

650 

645 

' 834 

705

810 

780 

654 

568

397

260 

223 

201 

220 

229

July

220 

173 

173 

148 

125

114 

32 

62 

122 

168

209 

131 

82

53 

40

29 

27 

26 

23 

23

22 

20 

20 

19 

19

18 

18 

18 

18 

18 

13

Aug.

18 

18 

18 

17 

17

17 

17 

17 

17 

16

16

16 

16 

16 

16

16 

18 

16 

15

15

15 

' 15 

13 

11 

11

11 

10 

10 

10 

9.7 

9.7

MlnlBun Mean '

61 122 

28 136 

18 20.9

8.6 157

17 ' 22.7 

20 211 

22 39.4 

68 659 

323 1,017 

201 865 

18 72.2 

9.7 14.7 

9.7 14.8

9.7 265

Sept.

9.7 

10 

15 

16 

15

15 

16 

15 

14 

15

15 

15 

15 

15 

15

15 

16 

16 

16 

16

15 

15 

IS 

15 

15

15 

15 

15 

15 

15

Runoff In 

acre-feet

7,480 

8,120 

1,290

113,300

1,400 

11,730 

2,420 

39,230 

62,580 

51,450 

4,440 

905 

882

191,900
188 KERN RIVER BASIN

Kern River near Bakersfield, Calif.

Location.--Water-stage recorder and wooden control, lat. 35°25'54", long. 118°56'43", in 

 S¥t~~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 1950.

Average discharge.--55 years (1893-1906, 1908-50), 950 second-feet.

Extremes. Maximum discharge during year, 4,592 second-feet Feb. 7 (gage height, 4.85 feet); 

minimum data not available. 

1896-1950: Maximum discharge, 21,701 second-feet Mar. 9, 1943 (gage height, 10.87 

feet); minimum, 46 second-feet Sept. 20, 1948.

Remarks. Four power plants and many diversions for irrigation above station.

Cooperation. Complete record, except runoff in acre-feet and annual figures, furnished by 

kern county Land Co.

Revisions (water years). W 861: Drainage area. W 1151: 1916.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

113 

99 

101 

108 

112

101 

102 

108 

116 

117

122 

125 

126 

125 

132

133 

126 

133 

131 

138

135 

141 

143 

140 

143

144 

128 

103 

153 

147 

139

Hov.

140 

141 

136 

132 

138

132 

142 

141 

132 

147

292 

255 

204 

209 

170

152 

222 

220 

219 

220

223 

218 

220 

204 

202

209 

208 

194 

173 

217

Dec.

204 

203 

219 

230 

198

191 

190 

189 

209 

214

209 

200 

160 

157 

202

212 

213 

214 

235 

255

239 

196 

214 

209 

227

215 

213 

208 

210 

214 

200

Jan.

193 

209 

210 

173 

168

177 

177 

188 

238 

229

214 

238 

241 

227 

254

213 

227 

324 

382 

364

357 

357 

365 

391 

' 445

381 

305 

312 

395 

357 

320

Feb.

289 

269 

300 

323 

389

1,469 

2,879 

1,381 

889 

762

780 

812 

684 

621 

576

551 

566 

571 

553 

568

575 

581 

569 

580 

592

618 

648 

651

Month

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ai*y

ter year 1949-50 .......................

Mar.

672 

721 

716 

713 

712

717 

741 

711 

682 

626

595 

552 

484 

523 

494

475 

463 

479 

482 

508

517 

518 

529 

530 

651

703 

627 

631 

626 

638 

662

Apr.

677 

695 

779 

899 

1,010

1,098 

1,129 

1,092 

1,083 

1,034

977 

940 

929 

915 

878

842 

843 

962 

1,106 

1,292

1,558 

1,833 

1,989 

2,028 

1,996

1,972 

1,995 

2,076 

1,955 

1,813

Secondfoot-days

3,884 

5,612 

6,449

152,697

8,631 

20,046 

18,698 

38,395 

49,652 

45,560 

17,596 

6,140 

5,240

225,903

May

1,733 

1,692 

1,561 

1,478 

1,378

1,320 

1,226 

1,120 

1,045 

1,002

999 

1,022 

1,002 

998 

1,014

1,088 

1,408 

1,618 

1,687 

1,755

2,011 

2,122 

2,048 

1,984 

1,846

1,921 

2,080 

2,113 

2,294 

2,412 

2,675

Maximum

185 

368 

261

2,128

470 

4,592 

790 

2,131 

2,878 

3,082 

884 

383 

252

4,592

June

2,790 

2,723 

2,495 

2,404 

2,213

2,113 

2,120 

1,779 

1,542 

1,452

1,434 

1,382 

1,264 

1,203 

1,218

1,235 

1,255 

1,293 

1,259 

1,268

1,331 

1,423 

1,377 

1,274 

1,198

1,030 

901 

868 

847 

869

July

850 

830 

799 

788 

745

728 

766 

718 

696 

763

801 

796 

730 

680 

635

592 

533 

488 

443 

419

393 

374 

359 

346 

331

324 

359 

356 

332 

322 

300

Minimum

127 

135

69

155 

253 

383 

653 

969 

797 

285 

131 

135

-

Aug.

282 

306 

303 

296 

271

257 

252 

232 

217 

212

198 

201 

19O 

193 

191

193 

180 

173 

167 

166

166 

163 

157 

153 

145

150 

147 

150 

148 

141 

140

Mean

125 

187 

208

418

278 

716 

603 

1,280 

1,602 

1,519 

568 

198 

175

619

Sept.

141 

138 

138 

149 

149

153 

166 

193 

239 

237

217 

200 

191 

182 

175

179 

196 

193 

199 

193

179 

177 

170 

163 

160

160 

160 

152 

144 

147

Runoff in

acre-feet

7,700 

11,130 

12,790

302,900

17,120 

39,760 

37,090 

76,160 

98,480 

90,370 

34,900 

12,180 

10,390

448,100

Note. Figures of maximum and minimum discharge as shown for each month are Instantaneous values.
KERN RIVER BASIN 189

Kern River No. 3 Canal near Kernville, Calif.

Location. Water-stage recorder, lat. 35°54', long. 118°28 I , In NE£ sec. 25, T. 23 S., 

RTTJE E., 4 miles downstream from intake and 12 miles north of Kernvllle. Altitude 

of gage, about 3,590 feet (from topographic map).

Records available. March 1921 to September 1950. 

Average discharge. 29 years, 363 second-feet.

Extremes.--Maximum dally discharge during year, 620 second-feet May 13; no flow Nov. 29 

1921-50; Maximum dally 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. 

2TTJ., R. 32 E. Water Is used for power and returned to river 8 miles below station.

Cooperation.--Water-stage recorder graph and 14 discharge measurements, furnished by 

soumern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Discharge, In second-feet, water year October 1949 to September 1950

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.

109 

109 

107 

106 

106

109 

110 

113 

120 

124

127 

125 

122 

120 

121

124 

126 

124 

126 

124

127 

129 

127 

126 

125

62 

17 

123 

122 

122 

121

Nov.

120

119 

118 

118

118

120 

120 

122 

126 

284

180 

160 

175 

184 

180

180 

178 

175 

176 

176

176 

173 

172 

172

174

179 

92 

4.5 

0 

0

Dec.

0 

93 

157 

164 

156

153 

154 

175 

171 

167

136 

112 

140 

170 

173

167 

167 

178 

192 

169

152 

178 

184 

180 

172

171 

172 

170 

169 

165 

161

Jan.

168 

165 

130 

134 

140

139 

150 

177 

166 

147

172 

176 

161 

176 

154

172 

241 

272 

259 

256

258 

262 

275 

342 

248

192 

218 

255 

210 

' 201 

197

Feb.

185 

204 

203 

259 

587

602 

597 

477 

402 

394

435 

362 

342 

334 

338

366 

352 

350 

376 

389

397 

381 

390 

404 

431

455 

473 

483

Month

Oo to 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

496 

497 

497 

490 

514

536 

498 

488 

460 

437

416 

394 

386 

377 

364

363 

370 

371 

374 

397

409 

433 

424 

481 

477

459 

467 

470 

486 

506 

529

Apr.

570 

588 

603 

612 

614

613 

614 

613 

612 

612

612 606' 

607 

610 

611

610 

610 

611 

611 

612

613 

613 

612 

613 

613

615 

616 

617 

616 

616

Secondfoot-days

3,553 

4,271.5 

4,868

98,369.5

6,213 

10,968 

13,866 

18,295 

19,075 

18,276 

15,105 

6,318 

5,064

125,872.5

May

617 

617 

617 

617 

617

618 

614 

615 

616 

615

615 

617 

620 

618 

618

617 

616 

616 

617 

615

615 

616 

613 

610 

614

614 

613 

611 

613 

612 

612

Maximum

129 

284 

192

641

342 

602 

536 

617 

620 

613 

603 

323 

246

620

June

612 

612 

613 

612 

612

612 

611 

610 

610 

611

609 

609 

609 

609 

610

608 

611 

610 

610 

610

609 

609 

609 

607 

606

605 

605 

604 

608 

604

July

603 

603 

603 

600 

599

597 

598 

596 

595 

593

594 

594 

594 

591 

554

510 

473 

453 

431 

408

387 

371 

361 

355 

350

388 

393 

361 

335 

316 

299

Aug.

308 

323 

307 

282 

266

253 

238 

228 

221 

214

208 

204 

198 

196 

194

186 

180 

176 

175 

176

179 

173 

172 

167 

163

 163 

160 

155 

153 

152 

148

Minimum Mean

17 115 

0 142 

0 157

0 270

130 200 

185 392 

363 447 

570 610 

610 615 

604 609 

299 487 

148 204 

139 169

0 345

Sept.

148 

145 

147 

154 

158

174 

207 

246 

232 

210

198 

188 

179 

174 

168

165 

168 

178 

175 

171

164 

158 

153 

149 

148

145 

144 

140 

139 

139

Runoff in 

acre-feet

7,050 

8,470 

9,660

195,100

12,320 

21,750 

27,500 

36,290 

37,830 

36,250 

29,960 

12,530 

10,040

249,600
190 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~E7, at point where canal crosses Tilley Creek, 0.8 mile south of Kernville. Altitude 

of gage, about 2,570 feet (from topographic map).

Becords available. January 1910 to September 1914, October 1925 to September 1950. 

Average discharge. 25 years (1925-50), 356 second-feet.

Extremes. Maximum daily discharge during year, 600 second-feet July 2-10; no flpw Oct. 18 

to MOV. 23.

1925-50: Maximum daily discharge, 605 second-feet June 3-5, 1927, May 22, 1936; no 

flow at times.

Remarks. Records excellent. Canal diverts from Kern River, 0.5 mile below Kernville, to 

supply Borel power plant of Southern California Edison Co., 10 miles below station, at 

which point water is returned to Kern River.

Cooperation. Water-stage recorder graph and 16 discharge measurements, furnished by 

Houtnern.California Edison Co., obtained in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

6

10

11

13

15

16

17

18

20

21

26

28

29

30

Oct.

27

1.5

1.4

1.3

1.1

1.1

1.0

.9

.9

.8

.7

.6

.5

.4

.3

.2

.1

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

0

0

0

0

0

88

172

180

129

158

170

172

-

Dec.

168

189

186

169

159

154

153

173

178

173

147

114

133

169

178

171

169

189

208

187

159

181

193

194

162

177

179

ISO

178

171

167

Jan.

177

176

144

138

147

146

153

190

183

158

183

194

174

200

177

181

260

330

309

299

303

313

326

415

318

233

246

299

275

258

237

Feb.

217

236

236

257

534

577

583

589

555

514

586

504

455

428

382

302

341

424

452

459

479

453

459

473

500

535

551

566

_

_

-

Month

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

Calendar year 1949 ......................

Fsbruary

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

Uay..... ...................................

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

ffatsr year 1949-50 ......................

Mar.

580

578

578

583

589

594

585

557

530

508

478

427

445

426

405

402

413

420

428

453

470

482

478

513

565

542

560

560

568

587

590

Apr.

590

589

594

597

597

597

597

597

597

596

597

597

597

597

597

597

597

597

597

597

597

596

594

593

593

593

592

592 .

592

594

-

Seoondf cot-days

5,328

92,510.8

15 394

18 289

T i onn

15 099

4,329

122,196.8

May

593

590

590

590

590

589

589

5S9

589

587

587

587

587

587

589

589

590

593

596

593

592

592

590 590'

590

590

590

590

590

587

594

Maximum

208

593

589

CQJ

CQT

599

317

232

600

June

593

596

597

599

597

597

596

596

596

596

596

596

596

596

596

594

594

596

596

597

597

597

599

599

597

597

597

599

599

599

-

Minimi

114

0

154

0

July

599

600

600

600

600

600

600

600

600

600

596

590

589

583

563

521.

478

453

432

409

389

369

,356

346

341

380

391

359

339

319

297

Aug.

306

317

310

283

263

250

247

226

218

210

203

197

192

. H7

185/v

177

17»

167

164

163

165

162

162

157

154

151

150

145

145

142

141

Mean

172

253

230

161

336

Sept.

137

135

136

138

156

156

166

252

232

208

192

180

'*!?«

163

158

159

161

170

170

165

159

154

147

147

145

142

142

136

155

154

.-

Runoff in 

'acre-feet

10,570

189,500

14,150

9,580

242,400
KERN RIVER BASIN 191

South Fork Kern River near Onyx, Calif.

Location. Water-stage recorder and broad-crested weir, lat. 35 0 44', long. 118°10', In SVf 

 Sec. 24, T. 25 S., R. 35 E., three-quarters of a mile north of State Highway 178,

1.4 miles upstream from Canebrake Creek, and 5 miles northeast of Onyx. Altitude of

gage, about 2,900 feet (from topographic map).

Drainage area. 531 square miles.

Records available. September 1911 to August 1914, January 1919 to September 1942, August 

194Y ro beptemoer 1950.

Average discharge. 24 years (1911-13, 1919-25, 1929-42, 1947-50), 103 second-feet.

Extremes. Maximum discharge during year, 595 second-feet Feb. 6 (gage height, 3.91 feet); 

minimum, 2.7 second-feet Aug. 31, Sept. 1.

1911-14, 1919-42, 1947-50:' Maximum discharge, 3,450 second-feet Mar. 2, 1938 (gage 

height, 6.69 feet), from rating curve extended above 1,900 second-feet; maximum gage 

height, 7.1 feet Jan. 25, 1914, former site, same datum; no flow for several days in 

July, August 1929, and September 1934.

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

Lowell and Thomas irrigation ditches divert above station; combined capacity, about 

5 second-feet.

Revisions (water years). W 1151: 1948(M).

Discharge, In second- feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

6.8 

6.8 

6.8 

6.0 

5.6

5.3

4.9 

6.0 

7.5 

7.9

8.2 

8.2 

8.2 

8.2 

7.9

7.5 

7.9 

7.9 

9.5 

10

9.9 

9.9 

9.9 

10 

10

10 

10 

11 

14 

16 

16

Nov.

16 

16 

16 

16 

16

16 

16 

16 

18 

28

31 

22 

19 

19 

19

19 

21 

22 

24 

24

24 

24 

24 

24 

22

24

24 

24 

24 

24

Dec.

24 

22 

23 

21 

20

19 

19 

31 

35 

25

18 

10 

14 

18 

23

19 

22 

29 

27 

18

14 

19 

22 

22 

22

22 

23 

23 

23 

22 

22

Jan.

23 

22 

15 

11 

17

19 

19 

21 

22 

18

19 

24 

21 

22 

21

23 

31 

49 

46 

42

42 

44 

43. 

48 

35

27 

31 

38 

36 

32 

30

Feb.

27 

33 

34 

38 

93

417 

220 

115 

86 

77

77 

67 

60 

58 

58

59 

59 

60 

60 

62

63 

62 

62 

63 

65

67 

68 

69

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

uary . . ...*

ter year 1949-5O .......................

Mar.

70 

84 

80 

80 

83

83 

80 

82 

80 

76

72 

67 

72 

377 

383

a88 

a94 

a99 

a!04 

allO

115 

121 

128 

159 

134

78 

110 

130 

132 

130 

134

Apr.

149 

187 

250 

292 

292

292 

260 

224 

184 

181

179 

174 

174 

174 

166

176 

212 

253 

288 

317

332 

325 

306 

278 

260

247 

240 

224 

206 

192

Secondfoot-days

273.8 

632 

671

12,735.4

891 

2,279 

3,035 

7,034 

3,684 

1,374 

348.8 

259.0 

271.4

20,753.0

Peak discharge (base, 180 sec. -ft.). Feb. 6 (1 p.m.)

May

184 

171 

161 

164 

152

141 

132 

126 

124 

119

117 

113 

113 

113 

112

113 

115 

112 

110 

105

103 

102 

102 

105 

106

106 

102 

98 

92 

88 

83

Maximum

16 

31 

35

350

49 

417 

159 

332 

184 

88 

23 

17 

16

417

June

82 

88 

84 

80 

73

68 

64 

62 

59 

57

54 

52 

47 

46 

45

43 

40 

38 

36 

34

32 

31 

29 

24 

20

19 

18 

17 

16 

16

July

14 

11 

10 

9.9 

9.5

11 

11 

12 

16 

23

23 

22 

19 

15 

12

11 

11 

11 

10 

10

9.9 

7.9 

6.4 

4.9 

3.1

3.8 

5.6 

8.6 

10 

9.0 

8.2

Aug.

7 

 12 

17 

15 

13

12 

11 

10 

10 

10

9 

9 

9 

9 

8

8 

8 

8 

7 

7

7 

7 

7 

6 

4

3 

4 

3 

3 

3 

2

Minimum Mean

4.9 8.83 

16 21.1 

10 21.6

3.6 34.9

11 28.7 

27 81.4 

67 97.9 

149 234 

83 119 

16 45.8 

3.1 11.3 

2.7 8.35 

2.7 9.05

2.7 56.9

.9

.0 

.5 

.9 

.9 

.6

.6

.6 

.6 

.9 

.5

.5 

.1 

.1 

.8 

.0

.8 

.0 

.8 

.1 

.1 

.7

Sept.

2.7 

3.4 

3.8 

4.2 

5.3

8.2 

12 

14 

16 

16

15 

14 

14 

13 

12

10 

10 

11 

12 

9.9

7.9 

7.1 

6.4 

5.6 

6.0

6.0 

6.0 

6.0 

6.4 

7.5

Runoff In 

acre-feet

543 

1,250 

1,330

25,240

1,770 

4,520 

6,020 

13,950 

7,310 

2,730 

692 

514 

538

41.170

595 sec.-ft.j Mar. 24 (9 p.m.) 200 seo.-ft.;

Apr

a No gage-height record; discharge Interpolated
192 KERN RIVER BASIN

South Fork Kern River at Isabella, Calif.

Location.--Water-stage recorder, lat. 35°40', long. 118°28 t , in NWi 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 1950.

Average discharge. 21 years (1929-50), 102 second-feet.

Extremes.--Maximum discharge during year, 677 second-feet Feb. 7 (gage height, 4.48 feet); 

minimum, 5.1 second-feet Oct. 16, Sept. 2.

1929-50: 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

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

T 

8 

9 

1O

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.2 

9.2 

9.2 

9.2

9.4

9.8 

11 

9.8 

9.4 

9.4

10 

9.2 

10 

11 

7.6

7.0 

8.3 

6.6 

8.9 

8.1

6.2 

6.6 

9.6 

9.2 

9.2

9.2 

8.5 

6.2 

6.2 

7.6 

11

Nov.

11 

11 

11 

11 

11

11 

11 

11 

11 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

13

Dec.

13 

13 

13 

13 

12

12 

13 

13 

13

13

12 

13 

13 

13 

13

13 

13 

13 

13 

13

12 

12 

12 

12 

12

12 

13 

13 

13 

13 

13

Jan.

13 

13 

13 

13 

13

12 

13 

14 

14 

13

13 

13 

13 

14

14

13 

13 

13

13 

13

13 

13 

13 

13 

13

13 

13

14 

14 

14 

14

Feb.

14 

14 

14

15 

16

18 

523 

322

174 

132

113 

90 

77 

72 

60

57 

57 

53

48 

44

45 

46 

45 

42 

45

54 

61 

65

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Ma v

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

h. .......................................

ter year 1949-5O .......................

Peak discharge (base, 130 sec. -ft .) .--Feb.

Mar.

65 

63 

65 

65 

70

84 

81 

58 

40 

31

23

18 

16 

17 

15

16 

16 

15 

13 

12

12 

12 

12 

13 

13

14 

14 

13 

13 

13 

14

Apr.

13 

13 

15 

35 

60

88 

107 

90 

90 

57

41 

45 

28 

26 

.24

24 

23 

40 

88 

124

197 

204 

197 

194 

135

79 

93 

88 

90 

75

Secondfoot-days

271.8 

352 

394

5,262.6

410 

2,316 

926 

2,383 

1,5OO 

549 

435 

302.7 

275.3

10,114.8

May

84 

77 

60 

53 

50

53 

46 

46 

39 

35

48 

48 

42 

38 

43

43 

45 

50 

46 

46

65 

63 

53

47 

41

42 

40 

43 

45 

36 

33

Maximum

11 

13 

13

100

14 

523 

84 

204 

84 

31 

17 

12 

10

523

7 (10:3O a.m.) 677 sec.

June

31 

29 

26 

26

24

23

24 

24 

20 

15

14 

14 

17 

17 

14

14 

16 

20 

20 

19

17 

17 

17 

15 

12

12 

12 

11 

14 

15

July

15 

17 

17 

16 

16

16 

16 

15 

15 

15

15 

14 

15 

14 

14

14 

14 

14 

13 

13

13 

13 

13 

13 

13

12 

12 

12 

12 

12 

12

Minimum

6.2 

11 

12

4.1

12 

14 

12 

13 

33 

11 

12 

5.6 

5.4

5.4

-ft.; Apr.

, Aug.

12 

12 

12 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

- 11 

11

11 

11 

11 

11 

11

11 

11 

8.3 

6.4 

6.4

6.2 

6.4 

6.2 

6.4 

5.8 

5.6

Mean

8.77 

11.7 

12.7

14.4

13.2 

82.7 

29.9 

79.4 

48.4 

18.3 

 14.0 

9.76 

9.18

27.7

21 (4 p.m.

Sept.

5.4 

6.6 

9.8 

10 

9.6

9.6 

9.6 

9.2 

8.5 

9.2

9.2 

9.2 

8.9 

8.9 

9.2

9.4 

9.6 

9.8 

9.8 

9.8

9.6 

9.6 

9.6 

9.6 

9.4

9.2 

9.2 

9.4 

9.2 

9.2

Runoff in 

acre-feet

539 

698 

781

1O,45O

8-13 

4,590 

1,840 

4,730 

2,980 

1,O9O 

863 

600 

546

20,070

) 230 sec.-
TULARE LAKE BASIN 193

Tulare Lake in Kings County, Calif.

Location.--Water-stage recorder, lat. 36°05', long. 119°49 I , at northeast corner sec. 29, 

T. 2i 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 1950. March 1906 to September 1920 (incomplete) at several other sites, at different datum.

Extremes. 1906-50: Maximum elevation, 196.8 feet June 27, 28, 1941; lake dry or practicaliy so during parts of 1906, 1914, 1915-16, 1919, 1937, 1946, 1950; lake dry during 

entire years 1920-22, 1924-36, 1947-49.

Lake elevation of June 27, 28, 1941, was highest known since about 1890.

Remarks.--Lake was dry entire water year 1949-50. 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.

Cooperation.--Record furnished by Tulare Lake Basin Water Storage District.

White River near Ducor, Calif.

Location.--Water-stage recorder, lat. 35°49', long. 118°56', in NE£ sec. 27, T. 24 S., R. 

2TTE7, 500 feet downstream from bridge at Gilliam Ranch, 3 miles downstream from Coko 

Creek, and 8 miles southeast of Ducor. Altitude of gage, about 695 feet (from topographic map).

Records available.--October 1944 to September 1950.

Extremes.--Maximum discharge during year, 58 second-feet Feb. 11 (gage height, 1.85 feet); 

no now for several months.

1944-50: Maximum discharge, 1,300 second-feet Feb. 2, 1945 (gage height, 6.35 feet, 

site and datum then in use), by slope-area method; no flow during several months each 

year.

Flood of Mar. 9, 1943, estimated at 2,300 second-feet by Bureau of Reclamation.

Remarks Records fair. Small diversion above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.3

.3

.3 

1.1 

6.4 

4.6 

3.2

Feb.

2.5 

1.9 

2.1 

2.1 

5.5

24 

24 

9.8 

7.5 

6.1

- 34 

20 

9.8 

7.5 

6.4

5.6 

5.4 

5.1 

5.1 

4.8

4.8 

4.& 

4.3 

4.1 

3.8

3.8 

4.1 

4.1

Month

Octo 

Hove

Deee

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lender year 1949 

ax*y

ter year 1949-50 .......................

Mar.

4.1 

4.1 

4.1 

4.1 

4.1

3.8 

3.8 

3.8

3.6 

3.4

3.4 

3.4 

3.2 

2.8 

2.7

2.7 

2.8 

2.8 

2.5 

2.3

2.3

2.3 

2.5 

3.4 

10

6.8 

5.9 

5.1 

5.1 

5.1 

4.8

Apr.

4.6 

4.6 

4.8 

5.1 

4.8

4.3 

4.3 

4.8 

9.4 

7.5

6.4 

6.1 

5.9 

5.9 

5.1

4.8 

4.6 

4.8 

4.8 

4.8

5.1 

4.8 

4.8 

4.6 

4.3

3.8 

3.6 

3.6 

3.4 

3.2

Secondfoot-days

0 

0 

0

633.6

16.2 

222.8 

120.8 

148.6 

57.6 

0 

0 

0 

0

566.0

May

3.0 

3.2 

3.4 

3.8 

3.4

3.6 

3.8 

3.6

4.1 

3.6

3.2 

2.8 

2.5 

2.1 

1.9

1.7 

1.6 

1.6 

1.1 

.8

.5 

.1 

0 

.5 

.9

.7 

.1 

0 

0 

0 

0

Maximum

0 

0 

0

16

6.4 

34 

10 

9.4 

4.1 

0 

0 

0 

0

34

June July

Minimum

0 

0 

0

0

0 

1.9 

2.3 

3.2 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

1.74

.52 

7.96 

3.90 

4.95 

1.86 

0 

0 

0 

0

1.55

Sept.

Runoff In 

acre-feet

0 

0 

0

1,260

32 

442

240 

295 

114 

0 

0 

0 

0

1,120
194 T01ARE LAKE BASIN

North Pork of Middle Pork Tule River near Springville, Calif.

Location. Water-stage recorder, lat. 36°11', long. 118°42' , in sec. 23, T. 20 S., R. 30 

E., 1 mile upstream from mouth and 7.8 miles northeast of Springville. Altitude of 

gage, about 2.850 feet (from topographic map).

Drainage area. 39.5 square miles.

ttecoras available. November 1939 to September 1950. January 1909 to December 1912 at 

site ~& miles upstream.

Average discharge. 10 years (1940-50), 24.2 second-feet.

extremes. Maximum discharge during year, 440 second-feet Feb. 6 (gage height, 5.05 feet); 

minimum, 0.4 second-foot Oct. 1-5.

1939-50: 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, 0.1 second-foot Sept. 2, 3, 1949.

Remarks. Records good except those for Nov. 3-10, which are fair. Pacific Gas & Electric 

CoT~conduit near Springville diverts 2.5 miles upstream (see p. 196).

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamea in connection with a Federal Power Commission project.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, in second-feet)

(shifting-control method used Oct. 1 to Dec. 23,

Aug. 1 to Sept. 30)

1.8 0.1 2.4 6.4 3.9 98 

1.9 .5 2.6 11 4.1 128 

2.0 1.2 2.8 18 4.3 168 

2.1 2.1 3.0 28 4.4 196 

2.2 3.2 3.5 44 4.6 264 

2.3 4.6 3.6 66

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.4 

.4 

.4 

1.8

1.1 

.8 

.8 

.8 

.7

.7 

.6 

.6 

.6 

.6

.6 

.6 

.8 

.8 

.9

.9 

.8 

.8 

.8 

.7

.7 

.6 

.6 

.6 

.6 

.6

Nov.

0.6 

.5 

.5 

.5 

.5

.5 

.6 

.6 

1.0 

16

3.5 

2.8 

1.6 

1.6

1.6 

1.7 

1.7 

1.7 

1.7

1.6 

1.5 

.8 

.6 

.5

.5

.5 

.6 

3.4 

7.7

Dec.

7.7 

5.2 

1.1 

.6 

.6

' .5 

.6 

.8 

.6 

.9

.9 

.9 

1.0 

3.6

.8 

1.5 

1.9 

3.9 

1.8

1.4 

1.3 

1.2 

1.2 

1.1

1.1 

1.0 

1.0 

1.0 

.9 

.9

Jan.

0.8 

1.0 

1.0 

.9 

1.1

1.4 

1.4 

1.6 

1.6 

1.3

1.5 

1.6 

1.4 

1.6

2.7 

6.2 

7.1 

6.0 

6.0

4.8 

3.6 

3.9 

4.8 

3.0

2.3 

2.2 

6.9 

5.0 

3.8 

3.0

Feb.

2.4 

2.3

2.2 

6.5 

42

242 

50 

13 

5.9 

8.6

12 

7.5 

6.0 

5.0

3.6 

3.5 

3.2 

3.0 

2.9

2.6 

2.5 

2.4 

2.3 

2.3

2.5 

2.6 

2.6

Month

Octo 

Hove 

Dece

Ca

Januj 

Pebn 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

nber. ...........-------- - - - -

lendar year 1949 

iry

uary ^

ter year 1949-50 .......................

Mar.

3.0 

2.5 

2.3 

2.3 

2.8

2.3 

2.1 

2.0 

1.9 

1.9

2.0 

1.8 

1.7 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.9 

1.8 

14 

9.6

4.8 

3.8 

3.8 

4..S 

1.2 

4.6

Apr.

7.1 

11 

17 

27 

31

28 

22 

24 

19 

16

18 

22 

24 

15 

13

18 

28 

36 

50 

64

80 

86 

79 

77 

76

77 

74 

67 

57 

52

Secondfoot -days

22.1 

58.5 

48.4

2,467.3

91.0 

445.6 

94.4 

1,215.1 

612.8 

63.5 

20.4 

20.0 

22.8

2,714.6

May

46 

37 

36 

24 

19

16 

12 

8.6 

7.7 

7.5

7.9 

4.7 

2.8 

2.6 

7.0

19 

28 

32 

32 

34

34 

32 

26 

17 

17

19 

16 

19 

17 

16 

16

Maximum

1.8 

16 

7.7

86

7.1 

242 

14 

86 

46 

13 

1.8 

1.3 

1.1

242

June

13 

13 

9.2 

3.5 

1.7

1.3 

1.2 

1.2 

1.1 

1.1

1.0 

1.0 

1.1 

1.1 

1.1

1.0 

1.1 

1.0 

1.0 

.9

.8 

.8 

.8 

.8 

.8

.6 

.6 

.6 

.6 

.5

July

0.6 

.6 

.5 

.5 

.5

.5 

.6 

.6 

.6 

.7

.8 

.7 

.6 

.6 

.5

.5 

.5 

.5 

.6 

.5

.5 

.5 

.5 

.5 

.7

.8 

.8 

.8 

.9 

1.1 

1.8

Aug.

1.3 

1.0 

.8 

.8

.7

.7 

.6 

.6 

.5 

.5

.6 

.6 

.6 

.6 

.6

.6 

.6 

.5 

.5 

.6

.6 

.6 

.6 

.6 

.6

.6 

.7 

.6 

.6 

.6 

.6

Sept.

0.6 

.6 

.6 

.7 

.7

.8 

.8 

.8 

.8 

.8

.7

.7 

.7 

.7 

.7

.8 

1.1 

1.0 . 9 

.8

.8

.7 

.7 

.7 

.7

.8 

.8 

.8 

.8 

.7

Minimum Mean ^.^

0.4 0.71 44 

.5 1.95 116 

.5 1.56 96

.1 6.76 4,900

.8 2.94 180 

2.2 15.9 884 

1.6 3.05 187 

7'.1 40.5 2,410 

2.6 19.8 1,220 

.5 2.12 186 

.5 .66 40 

.5 .65 40 

.6 .76 45

.4 7.44 5,390
TULARE LAKE BASIN 195

Tule River near Porterville, Calif.

Location. Water-stage recorder, lat. 36°05', long. 118°S5', in NW£ sec. 25, T. 21 S., 

H. JJH E., at highway bridge 1 mile upstream from South Pork 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 1950.

Average discharge. 49 years, 141 second-feet.

Extremes.--Maximum discharge during year, 2,160 second-feet Feb. 6 (gage height, 7.45 

reet); no flow Sept. 21-26.

1901-50: 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, 1950.

Remarks. Records good. Several small diversions above station for irrigation, 

is developed on Middle Pork and tributaries.

Power

Discharge, In second- feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

- 8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.2 

.3

.3 

.5 

.7 

.8 

1.0

.8 

.9 

1.0 

1.2 

1.5 

1.6

Nov.

1.8 

2.1 

2.1 

1.6 

1.8

1.9 

1.9 

2.1 

6.7 

116

63 

33 

28 

25 

24

24 

22 

22 

21 

20

20 

19 

20 

IS 

18

20 

22 

23 

20 

19

Dec.

23 

22 

23 

22 

21

22 

22 

26 

27 

28

26 

27 

27 

26 

26

28 

29 

41 

72 

50

37 

33 

33 

33 

32

32 

32 

32 

31 

30 

30

Jan.

30 

31 

31 

30 

28

30 

30 

32 

47 

37

47 

70 

51 

56 

59

50 

89 

106 

89 

82

86 

90 

90 

144 

99

76 

70 

118 

117 

96 

80

Feb.

72 

70 

66 

69 

347

1,190 

566 

285 

208 

185

258 

195 

169 

153 

145

144 

144 

138 

140 

135

130 

126 

125 

125 

126

130 

126 

126

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1949

ter year 1949-50 .......................

Mar.

128 

122 

118 

118 

118

111 

105 

99 

92 

86

83 

78 

75 

73 

64

62 

62 

63 

63 

76

82 

85 

86 

154 

236

145 

125 

118 

132 

142 

154

Apr.

166 

173 

181 

193 

197

'191 

175 

208 

256 

199

199 

199 

216 

189 

173

171 

183 

191 

199 

212

229 

240 

229 

220 

216

212 

212 

201 

185 

173

Secondfoot-days

12.7 

619 

943

19,865.6

2,091 

5,693 

3,255 

5,988 

3,878 

1,258.9 

47.8 

6.4 

2.4

23,795.2

May

16S 

156 

171 

154 

140

145 

133 

123 

117 

111

106 

100 

104 

104 

104

116 

123 

135 

135 

135

135 

133 

130 

122 

116

117 

111 

112 

112 

106 

104

Maximum

1.6 

116 

72

320

144 

1,190 

236 

256 

171 

98 

5.9 

.5 

.1

1,190

June

98 

93 

89 

80 

72

65 

62 

59 

53 

51

47 

44 

42 

39 

38

35 

34 

32 

30 

26

25 

22 

20 

21 

20

17 

14 

12 

11 

7.9

July

5.9 

4.5 

3.9 

2.7 

2.1

1.9 

1.5 

1.8 

1.4 

1.6

1.8 

1.8 

2.1 

1.9 

1.8

1.3 

1.2 

.8 

.8 

.8

.8

.6 

.6 

.6 

.6

.5 

.5 

.5 

.5 

.5 

.5

Minimum

0.1 

1.6 

21

.1

2S 

66 

62 

166 

100 

7.9 

.5 

.1 

0

0

Aug.

0.5 

.5 

.5 

.5 

.5

.5 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Mean

0.41 

20.6 

30.4

54.4

67.5 

203 

105 

200 

125 

42.0 

1.54 

.21 

.08

65.2

Sept.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

0 

0 

0 

0 

0

0 

.1 

.1 

.1 

.1

Runoff In 

acre-feet

25 

1,230 

1,870

39,400

4,150 

11,290 

6,460 

11,880 

7,690 

2,500 

95 

13 

4.8

47,200

Peak discharge (base. 600 sec.-ft.). Feb. 6 (1 p.m.) 2,160 sec.-ft.
196 TULARE LAKE BASIN

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

Location. Water-stage recorder, lat. 36°12', long. 118 0 39', in NW£ sec. 18, T. 20 S., R. 

31 E., 0.5 mile downstream from intake and 10 miles northeast of Springville. Altitude 

of gage, about 4,000 feet (from topographic map).

Records available. October 1939 to September 1950. 

Average discharge. 11 years, 30.5 second-feet.

Extremes. Maximum daily discharge during year, 70 second-feet May 15-26, 28, 29; no flow 

Dec. 1.

1939-50: Maximum daily discharge, 70 second-feet Apr. 16, 1948, May 15-26, 28, 29, 

1950; no flow Jan. 10, 1945.. Dec. 1, 1949.

Remarks.--Records good. Conduit diverts from left bank of North Fork of Middle Fork Tule 

River in sec. 18, T. 20 S., R. 31 E. Water is used for power development at Tule River 

powerhouse of Pacific Gas & Electric Co., 3.5 miles downstream and is then returned to 

river.

Cooperatiorx--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 1949 to Septenber 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

J.2 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23

24 

25

26 

27 

26 

29 

30 

31

Oct.

11 

11 

11 

11 

8.7

11 

11 

12 

12

11

11 

11 

11 

11 

11

11 

11 

11 

12 

12

12 

12 

12

11 

11

11 

11 

11 

11 

11 

11

Nov.

11 

11 

11 

11 

11

11 

11 

12 

14 

40

16 

16 

17 

16 

15

14 

14 

13 

13 

13

12 

13 

13 

13 

13

14 

14 

13 

5.5 

.9

Dec.

0 

7.1 

12 

12 

12

12 

12 

13 

12 

13

12 

12 

12 

7.0 

12

12 

13 

15 

15 

14

14 

14 

15 

14 

14

14 

15 

15 

15 

14 

14

Jan.

14 

14 

13 

13 

13

12 

13 

14 

14 

14

14 

14 

14 

13 

15

16 

28 

28 

25 

27

29 

29 

35 

38 

26

22 

21 

22 

20 

19 

18

Feb.

18 

18 

19 

37 

69

65 

67 

f59 

46 

50

55 

44 

41 

40 

43

46 

47 

49 

50 

48

46 

49 

51 

53 

56

59 

59 

59

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Nay

June 

July 

Augu 

Sept

Wa

iiber. ...........-----------. - - - -------

lendar year 1949 

ary

Mar.

59 

56 

56 

57 

59

60 

54 

51 

60 

48

41 

38 

37 

32 

38

33 

35 

33 

34 

36

38 

42 

39 

47 

32

42 

40 

45 

36 

55 

61

Apr.

65 

67 

68 

66 

67

66 

68 

67 

66 

65

66 

67 

67 

66 

63

65 

66 

66 

67 

67

67 

66 

66 

66 

66

66 

66 

66 

66 

66

Secondfoot-days

345.7 

401.4 

387.1

6,665.6

607 

1,343 

1,394 

1,986 

2,079 

1,210 

557 

397 

370

11,079.2

Hay

65 

65 

65 

65 

65

65 

63 

61 

61 

61

61 

63 

65 

67 

70

70 

70 

70 

70 

70

70 

70 

70 

70 

70

70 

69 

70 

70 

69 

69

Maximum

12 

40 

15

68

38 

69 

61 

66 

70 

69 

22 

16 

14

70

June

69 

69 

69 

65 

60

56 

52 

49 

46 

44

42 

41 

39 

38 

37

36 

35 

33 

32 

31

30 

29 

29 

29 

28

26 

25 

25 

23 

23

July

22 

22 

21 

21 

20

21 

21 

20 

20 

20

20 

19 

19 

18 

16

16 

17 

17 

17 

17

16 

16 

16 

16 

16

16 

15 

15 

15 

15 

13

Minimum

6.7 

.9 

0

0

12 

16 

32

63 

61 

23 

13 

12 

11

0

Aug.

16 

15 

14 

14 

14

14 

13 

13 

13 

13

13 

13 

13 

13 

13

13 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12 

12

Mean

11.2 

13.4 

12.5

23.7

19.6 

46.0 

45.0 

66.3 

67.1 

40.3 

18.0 

12.8 

12.3

30.4

Sept.

11 

11 

11 

12 

12

12 

13 

13 

13 

13

12 

12 

13 

13 

13

12 

14 

14 

13 

13

12 

12 

12 

12 

12

12 

12 

12 

12 

12

Runoff in 

acre-feet

666 

796 

768

17,190

1,200 

2,680 

2,760 

3,940 

4,120 

2,400 

1,100 

787 

734

21,950

f Discharge computed from partly estimated gage-height.

Note/-No gage-height record Feb. 22 to Apr. 14; discharge computed on basis of unpublished records 

of output for Pacific Qas & Electric Co.'s Tule River : powerhouse.
TDLARE LAKE BASIN 197

South Fork Tule River near Success, Calif.

Location.--Water-stage recorder, lat. 36°03", long. 118°51', In NW£ sec. 4, T. 22 S., R. 

2TTE7, 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 1950.

Average discharge.--20 years, 41.4 second-feet.

Extremes . Maximum discharge during year, 635 second-feet Feb. 6 (gage height, 3.74 feet); 

no now for several months.

1930-50: Maximum discharge, 6,210 second-feet Mar. 9, 1943 (gage height, 8.24 

feet), from rating curve extended above 1,600 second-feet on basis of velocity-area 

studies and logarithmic plotting; no flow at times during each year except 1938, 1943,

-Ly45.

Remarks.--Records good except those for May 20 to June 30, which are fair. Several diversions above station for irrigation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

.1 

.1 

.1 

.2 

27

IS 

8.8 

6.0 

5.2 

5.0

4.5 

3.8 

3.4 

3.2 

3.2

3.2 

3.2 

3.2 

3.1 

3.1

3.1 

3.1 

2.9 

2.9 

2.9

Dec.

2.9 

2.9 

2.6 

2.6 

2.6

2.6 

2.8 

3.2 

4.2 

4.7

5.2 

3.8 

3.2 

3.6 

3.8

4.5 

5.2 

11 

16 

11

6.4 

6.4 

6.4 

6.4 

6.0

6.0 

6.0 

6.0 

6.0 

6.4 

5.6

Jan.

5.6 

5.6 

5.6 

5.0 

4.7

5.2 

5.2 

6.0 

11 

6.4

11 

15 

12 

13 

13

12 

22 

33 

25 

24

29 

26 

25 

50 

28

19 

19 

28 

30 

23 

19

Feb.

16 

17 

16 

17 

83

318 

128 

71 

52 

49

109 

65 

52 

45 

43

. 42 

40 

39 

40 

39

38 

36 

35 

34 

35

37 

37 

37

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

her. ....................................

lendar year 194£

ter year 1949-50 .......................

Mar.

36 

36 

35 

34 

34

33 

30 

29 

27 

26

28 

23 

22 

21 

20

19 

19 

19 

20 

22

22 

22 

22 

45 

66

42 

38 

38 

42 

44 

42

Apr.

43 

43 

43 

43 

41

40 

38 

47 

58 

46

51 

49 

50 

45 

42

41 

40 

40 

38 

38

38 

39 

39 

38 

35

34 

33 

32 

30 

29

Secondfoot-days

0 

119.3 

166.0

5,336.7

536.3 

1,575 

956 

1,223 

573.2 

131.6 

0 

0 

0

5,280.4

May

26 

26 

32 

30 

27

30 

26 

23 -22 

21

20 

18 

17 

17 

18

17 

16 

18 

16 

16

15 

13 

13 

14 

14

14 

13 

12 

12 

10 

9.2

Maximum

0 

27 

16

84

50 

318 

66 

58 

32 

8.8 

0 

0 

0

318

June

S.8 

7.8 

8.3 

7.8 

6.8

6.4 

6.4 

7.3 

6.8 

6.4

5.2 

5.0 

4.5 

4.2 

4.2

4.0 

3.8 

4.0 

3.8 

3.2

2.8 

2.2 

2.1 

2.0 

2.0

2.0 

1.8 

1.5 

.4

.1

July

Minimum

0 

0 

2.6

0

4.7 

16 

19 

29 

9.2 

.1 

0 

0 

0

0

Aug.

Mean

0 

3.98 

5.35

14.6

17.3 

56.2 

30.8 

40.8 

18.5 

4.39 

0 

0 

0

14.5

Sept.

Runoff in 

acre-feet

0 

237 

329

10,590

1,060 

3,120 

1,,900 "fc'JB

261 

0 

0 

0

10,480

Peak discharge (base, 200 sec.-ft.) . Feb. 6 (11:30 a.m.) 635 sec.-ft. 

207481 0-52-14
198 TULARE LAKE BASIN

Kaweah River near Tnree Rivers; Calif.

Location. Water-stage recorder, lat. 36°24', long. 118°57', in SWi sec. 33, T. 17 S., 

K, 28 E., 2.5 miles downstream from South Fork and 3 miles southwest of Three Rivers 

post office. Altitude of gage, about 620 feet (from topographic map).

Drainage area. 520 square miles.

Records available. February 1936 to September 1950. April 1903 to January 1936 at site 

2 miles upstream.

Average discharge. 47 years, 560 second-feet.

Extremes. Maximum discharge during year, 3,860 second-feet Feb. 6 (gage height, 6.93 

t'eet); minimum, 18 second-feet Oct. 5 (gage height, 0.88 foot).

1903-50: 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 niddle and East Forks.

Revisions (water years). W 1121: 1918-21.

Discharge, In second-feet, water year October 1949 to September 1950

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.

21 

19 

19 

19 

19

20 

21 

22 

24 

25

25 

24 

23 

22 

21

21* 

21 

22 

23 

24

23 

26 

25 

24 

24

24 

24 

24 

24 

24 

24

Nov.

-23 

23 

23 

23 

23

22 

23 

24 

30 

434

162 

100 

S5 

87 

S4

S5 

S2 

S4 

S4 

82

BO 

78 

75 

72 

77

S5 

BO 

77 

75 

74

Dec.

71 

65 

59 

59 

56

54 

52 

67 

67 

67

60 

54 

 57 

61 

62

62 

67 

92 

154 

113

96 

96 

94 

94 

89

87 

S5 

90 

94 

89 

S5

Jan.

85 

B5 

67 

68 

72

72 

75 

B5 

105 

S5

103 

109 

94 

115 

109

109 

204 

308 

266 

263

266 

270 

257 

318 

222

176 

176 

239 

260 

213 

174

Feb.

154 

159 

152 

1S6 

1,1SO

2,410 

1,140 

654 

499 

454

5SS 

430 

379 

353 

353

371 

379 

379 

390 

390

375 

375 

379 

398 

434

470 

470 

450

Month

Octo 

Nov« 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

Hair

June 

July 

Augu 

Sept

Ha

lendar year 194S .......................

ter year 1949-50 .......................

Mar.

466 

43 8 

434 

450 

495

454 

430 

414 

364 

339

332 

305 

299 

289 

270

266 

292 

295 

282 

299

305 

353 

350 

673 

739

512 

458 

438 

520 

549 

623

Apr.

695 

735 

355 

934 

1,000

939 

855 

917 

994 

855

355 

S85 

928 

785 

740

345 

1,000 

1,140 

1,300 

1,530

1,790 

1,390 

1,830 

1,850 

1,890

1,960 

1,970 

1,770 

1,620 

1,610

Secondfoob-days

2, 

2,

701 

356 

398

112,097

5,050 

14,351 

12,733 

37,017 

43,691 

25,725 

5,321 

1,340 

1,049

151,737

May

1,550 

1,220 

1,200 

1,020 

939

922 

825 

755 

765 

340

912 

840 

375 

9SS 

1,240

1,600 

1,690 

1,730 

1,840 

1,960

1,990 

1,860 

1,690 

1,490 

1,650

1,750 

1,690 

1,870 

1,910 

2,02O 

2,060

Maximum

26 

434 

154

1,860

316 

2,410 

739 

1,970 

2,060 

1,990 

339 

72 

47

2,410

June

1,990 

1,840 

1,650 

1,440 

1,440

1,340 

1,000 

350 

912 

S80

330 

770 

770 

632 

695

690 

690 

715 

710 

720

735 

650 

61O 

571 

482

446 

422 

410 

406 

379

July

Minimum

19 

22 

52

IS

67 

152 

266 

695 

755 

379 

65 

29 

28

19

339 

339 

318 

295 

270

242 

233 

227 

219 

251

245 

222 

199 

176 

162

148 

137 

129 

125 

115

107 

100 

94 

90 

S5

85 

82 

77 

74 

71 

65

Aug.

65 

72 

60 

65 

58

56 

53 

50 

49 

47

46 

45 

44 

44 

43

41 

3S 

37 

36 

34

33 

33 

36 

36 

35

34 

32 

30 

29 

29 

30

Mean

22.6 

78.5 

77.4

307

163 

513 

411 

1,234 

1,409 

853 

172 

43.2 

35.0

416

Sept.

30 

26 

2S 

28 

29

30 

33 

45 

45 

43

41 

39 

3S 

37 

36

36 

39 

47 

45 

42

39 

35 

31 

31 

30

30 

29 

29 

28 

28

Runoff in 

acre-feet

1,390 

4,670 

4,760

223,300

10,020 

28,460 

25,270 

73,420 

36,660 

51,020 

10,550 

2,660 

2,080

301,000

Peak discharge (base, 2.200 eec.-ft.). Feb. 6 (12:30 p.m.) 3,360 seo.-ft.; Apr. 22 (1 a.m.) 2,250

sec.-ft.5 Apr. 27 (1 a.m.) 2,370 

2,660 sec.-ft.
TULARE LAKE BASIN 199

North Fork Kaweah River at Kaweah, Calif.

Location. Water-stage recorder, lat. 36°29', long. 1180 55', in SE^ sec. 34, T. 16 S., R. 

2TT~E7, 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 1950. October 1910 to October 1933 at site 

j, mile downstream.

Average discharge. 39 years (1911-50), 97.5 second-feet.

Extremes.--Maximum discharge during year, 1,670 second-feet Feb. 6 (gage height, 5.69 

reet); minimum, 1.4 second-feet Sept. 3.

1910-50: 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 1949-50 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Oct. 1 to Nov. lo)

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

1.1 2.5 2.2 36 4.0 460 1.0 1.6 1.8 16 

1.3 3.9 2.5 68 4.4 665 1.2 3.2 2.1 32 

1.5 6.2 2.8 107 4.3 915 1.4 5.7 2.4 59 

1.7 10 3.2 ISO 1.6 9.6 2.8 107 

1.9 16 3.6 298 Note. Same as precedIng table above 2.8 feet. 

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

3 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23. 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.8 

2.8 

2.8 

2.8 

2.3

2.3- 

2.3 

3.2 

3.3 

3.4

3.6 

3.7 

3.6 

3.6 

3.4

2.2 

3.4 

3.4 

3.6 

4.0

4.2

4.6 

4.6 

4.6 

4.6

4.4 

4.6 

4.6 

4.6 

4.4 

4.4

Nov.

4.4 

4.4 

4.6 

4.4

4.6

4.4 

4.6 

4.9 

6.6 

175

44 

21 

17 

16 

15

16 

15 

14 

14 

14

14 

13 

12 

12 

12

12 

13 

12 

12 

12

Dec.

11 

11 

10 

10 

9.6

9.6 

9.3 

13 

13 

12

11 

9.3 

10 

10 

11

11 

11 

16 

39 

21

16 

16 

16 

16 

16

15 

15 

15 

16 

16 

15

Jan.

14 

16 

14 

13 

13

13 

13 

15 

20 

16

19 

20 

17 

22 

20

20 

54 

78 

79 

75

74 

75 

74 

84 

57

44 

43 

65 

67 

55 

42

Feb.

36 

36 

35 

75 

369

386 

348 

198 

144 

135

164 

119 

106 

101 

103

103 

110 

108 

112 

110

107 

106 

106 

112 

113

128 

127 

116

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

AUgu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

122 

113 

114 

119 

128

113 

113 

108 

94 

39

88 

81

79 

78 

74

73 

82 

80 

78 

85

87 

103 

96 

216 

217

140 

124 

120 

133 

155 

185

Apr.

201 

217 

230 

226 

226

220 

196 

228 

243 

234

240 

250 

253 

212 

206

234

265 

273 

232 

291

312 

316 

305 

291 

285

282

272 

253 

228 

217

May

206 

185 

196 

171 

164

164 

149 

135 

133 

132

130 

125 

125 

122 

125

133 

138 

133 

138 

138

135 

130 

137 

119 

113

110 

104 

100 

97 

91 

83

Second- iiavimnm foot -days Maximum

114.7 4.6 

527.9 175 

430.3 39

17,296.5 342

1,251 84 

4,313 886 

3,497 Z17 

7,483 316 

4,161 206 

1,279 83 

395.9 20 

148.0 8.4 

119,5 6.2

23,705.8 886

June

83 

79 

73 

68 

62

58 

57 

56 

52 

43

46 

44 

43. 

40 

38

33 

38 

36 

34 

31

30 

29 

37 

28 

27

26 

24 

23 

21 

20

July

19 

Iff 

17 

16 

15

16 

16 

16 

15 

17

20 

IS 

16 

14 

13

12 

12 

11 

11 

10

9.6 

9.1 

8.8 

8.2 

S.O

8.2

8.6 

8.4 

8.4 

3.4 

3.2

Aug.

7.6 

7.4 

8.4 

7.4 

7.0

6.9 

6.9 

6.5 

6.0 

6.0

6.0 

5.7 

4.5 

3.7 

3.7

4.1 3.9 ' 

3.6 

3.5 

3.4

3.2 

3.2 

3.3 

3.3 

3.1

3.0 

3.0 

3.3 

3.6 

3.6 

3.2

Minimum Mean

2.3 3.70 

4.4 17.6 

9.6 13.9

2.4 47.4

13 39.7 

35 154 

73 113 

196 24§ 

66 134 

20 42.6 

8.0 12.3 

3.0 4.77 

2.0 3.98

2.0 64.9

Sept.

2.0 

2.0 

2.0 

2.1 

2.6

2.8 

3.4 

3.7 

4.3 

4.3

2.9 

3.3 

3.3 

3.4 

3.5

3.6 

4.2 

5.2 

6.2 

6.0

5.4 

5.0 

4.7 

4.7 

5.0

4.6 

4.3 

4.6 

4.6 

4.7

Runoff in 

acre-feet

228

1,050 

854

34,320

2,440 

8,560 

6,940 

14,840 

6,250 

2,540 

76S 

294 

237

47,020

Peak discharge (base. 700 sec.-ft.) . Feb. 6 (12 m.) 1,670 Bee.-ft.
200 TULARE LAKE BASIN

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., Tt. 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 1950.

Extremes.--Maximum discharge during year, 48 second-feet Mar. 24 (gage height, 2.02 feet); 

no flow for several months.

1944-50: 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.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

0*0 

.2

.3

.4 

.5 1.4

1.0 

1.2

2.2

4.6

7.7

12

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Jan. Feb.

mber. ...........-----.- ----------------

lendar year 1949 

ary

uapy ... .* .... *

ter year 1949-5O .......................

Bar.

0

0 

0 

O 

0

0

0 

0 

0 

O

0 

0 

0 

0 

0

0 

0 

O 

0 

0

0 

0 

0 

.8 

11

.7 

.2 

.1 

.1 

.1 

0

Apr.

0 

0 

0 

0 

0

0 

0 

.1 

3.9 

.9

.5 

.4 

.3 

.2 

.2

.2 

.2 

.1 

.1 

0

0 

0 

0 

O 

0

O 

0 

0 

0 

0

Secondfoot -days

0 

0 

p

32.9

0 

0 

13.0 

7.1 

0 

0 

0 

0 

0

20.1

May

Maximum

0 

0 

0

3.7

O 

0 

11 

3.9 

0 

0 

0 

O 

O

11

June July

Minimum

0 

0 

O

0

0 

0 

0 

0 

O 

0 

0 

0 

O

0

Aug.

Mean

0 

0 

0

.09

O 

0 

.42 

.24

°0 ' 

0 

0 

0

.06

Sept.

Runoff In 

acre-feet

O 

O 

0

65

0 

0 

26 

14 

0 

0 

0 

0 

0

40

Peak discharge (base. 1O sec.-ft.). Mar. 24 (12 p.m.) 48 sec.-ft.
TULARE LAKE BASIN 201

Kings River above North Fork, Calif.

Location.--Water-stage recorder, lat. 36°52', long. 119°07 ! , in N| sec. 27, T 12-S R 

2F~E7 (unsurveyed), 1 mile upstream from North Fork and 10 miles southeast'of Trimmer 

Altitude of gage, about 1,020 feet (from topographic map).

Drainage area. 956 square miles.

Records available. October 1931 to September 1950. March 1927 to December 1928 at site 

nair a mne downstream.

Average discharge. 20 years (1927-28, 1931-50), 1,401 second-feet.

Extremes.--Maximum discharge during year, 7,940 second-feet May 31 (gage height 6 30 

reeTT; minimum, 95 second-feet Oct. 5, Nov. 6. ' ' 

no 2 2~8 ?? 19, 31 - 5°: Maximum discharge, 42,000 second-feet Dec. 11, 1937 (gage height, 

12.02 reet), 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 period of no gage-height record, which are 

FlatC k E y re£ulated by small reservoirs above station on Ten Mile and Mill

Cooperation. Gage-height record collected in cooperation with Pacific Gas & Electric Co.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

0.4 92 1.0 212 2.0 576 4.0 2,280 

.5 108 1.2 268 2.4 802 4.5 3,O40 

.6 125 1.4 330 2.8 1,080 5.0 4,040 

.7 144 1.6 401 3.2 1,420 5.7 5,900 

.8 164 1.8- 483 3.6 1,810 6.0 6,880

Discharge, In second-feet, water year October 1949 to September 1950

Day

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

105 

102 

100 

98

97

97 

98 

100 

105 

108

111 

111 

108 

105 

115

115 

118 

120

125 

125

120 

118 

118 

115 

113

111 

110 

108 

108

106 

105

Nov.

1O5 

103 

102 

100 

98

98 

100 

103 

118 

485

231 

220 

234 

234 

231

231 

226 

223 

ZZ8 

228

226 

220 

215 

210 

220

242 

245 

236 

231

226

Dec.

220 

207 

194 

190 

180

173 

171 

178 

178 

176

8170 

a!50 

also 

a!60 

171

169 

169 

194 

262 

220

202 

223 

226 

226 

204

200 

202 

202 

204 

194 

190

Jan.

192 

194 

171 

148 

160

156 

171 

202 

202 

192

228 

239

228 

254 

223

256 

542 

566 

483 

466

458 

445 

445 

542 

421

368 

368 

458 

433 

401 

364

Feb.

330 

311 

317 

536 

1,320

1,880 

1,180 

865 

730 

701

736 

623 

576 

557 

552

562 

566 

566 

581 

592

586 

581 

586 

602 

639

690 

719 

713

Month

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

h. ......................................

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

ter year 1949-50 .......................

Mar.

730 

707 

701 

719 

784

754 

713 

684 

634 

592

571 

524 

519 

501 

479

470 

492 

488 

479 

496

496 

557 

552 

836 

784

802 

790 

802 

878 

944 

1,080

Apr.

,200 

,430 

,620 

,800 

,980

1,800 

1,640 

1,710 

1,670 

1,540

1,490 

1,520 

1,590 

1,420 

1,350

1,470 

1,780 

2,070 

2,560 

3,260

3,860 

4,190 

4,220 

4,170 

4,430

4,680 

4,820 

4,530 

4,130 

4,080

Secondfoot -days

3,395 

5,969 

5,955

308,288

9,976 

19,197 

20,558 

78,010 

117,780 

104,760 

35,724 

8,105 

5,628

415,057

Peak discharge (base, 6,300 see. -ft. ) .--May 31 (1 a.m.

May

3,860 

2,960 

2,580 

2,190 

1,990

1,860 

1,690 

1,590 

1,580 

1,690

1,880 

1,830 

1,980 

2,520 

3,170

4,080 

4,430 

4,500 

4,87O 

5,320

5,430 

5,350 

5,100 

4,580 

4,820

5,120 

5,400 

5,900 

6,060 

6,640 

6,810

Maximum

125 

485 

262

5,660

566 

1,880 

1,080 

4,820 

6,810 

6,570 

2,010 

458 

292

6,810

June

6,570 

6,060 

5,720 

5,520 

5,430

5,320 

3,740 

2,960 

3,130 

3,080

2,960 

2,710 

2,870 

2,870 

3,040

3,260 

3,330 

3,300 

3,350 

3,610

3,720. 

3,450 

3,200 

2,900 

2,280

2,100 

2,010 

2,050 

2,090 

2,130

July

1,950 

2,010 

1,940 

1,850 

1,750

1,580 

1,550 

1,530 

1,550 

1,860

1,670 

1,460 

1,350 

1,260 

1,140

1,020 

937 

872 

821 

772

725 

678 

650 

628 

618

639 

678 

634 

576 

538 

488

Aug.

458 

462 

437 

405 

379

354 

337 

317 

304 

289

271 

259 

251 

242 

234

226 

217 

210 

207 

207

204 

202 

200 

194 

190

185 

180 

176 

173 

169 

166

Minimum Mean

97 110 

98 199 

150 192

95 845

148 322 

311 686 

470 663 

1,200 2,600 

1,580 3,799 

2,010 3,492 

488 1,152 

166 261 

152 188

97 1,137

Sept.

164 

162 

160 

160 

166

173 

197 

292 

286 

262

239 

223 

210 

197 

190

186 

180 

190 

192 

1S5

176 

166 

164 

162 

158

162 

162 

158 

154 

152

Runoff In 

acre-feet

6,730 

11,840 

11,810

611,400

19,790 

38,080 

40,780 

154,700 

233,600 

207,800 

70,860 

16,080 

11,160

823,200

) 7,940 sec. -ft.

a No gage-height record; discharge computed on basis of records for station at Pledra
202 TULARE LAKE BASIN

Kings River at Piedra, Calif.

Location. Water-stage recorder, lat. 36°49'02", long. 119°23'08", in NWi sec. 8, T. 13 

s., K. 24 E., 0.5 mile downstream from highway bridge at Piedra, 2 miles downstream 

from Mill Creek, and 12 miles northeast of Sanger. Altitude of gage, about 500 feet 

(from topographic map).

Drainage area. 1,694 square miles.

Records available.--September 1895 to September 1950.

Average discharge.--55 years, 2,286 second-feet.

Extremes.--Maximum discharge during year, 12,900 second-feet May 30 (gage height, 10.05 

feet); minimum, 112 second-feet Oct. 6, 7 (gage height, 0.71 foot).

1895-1950: 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 

MOT Plat Creeks, and by power plant on North Pork.

Cooperation. Three discharge measurements and assistance in collecting gage-height record 

) furnished by Kings River Water Association.

Revisions (water years). W 831: 1932(M), 1933(M), 1935(M), 1936(M),

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

15 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

30 

31

Oct.

124 

121 

117 

117 

115

114 

114 

117 

119 

126

132 

140 

140 

154 

150

158 

138 

142 

146 

152

157 

150 

150 

148 

146

142 

140 

138 

156 

152 

152

Nov.

150 

123 

123 

126 

123

121 

123 

126 

142 

800

591 

295 

508 

505 

302

296 

299 

287 

284 

287

281 

284 

272 

262 

262

287 

317 

296 

284 

278

Dee.

275 

259 

236 

229 

220

213 

2O9 

220 

236 

224

211 

176 

156 

175 

196

211 

204 

244 

419 

376

269 

269 

284 

293 

287

262 

262 

264 

269 

272 

259

Jan.

251 

262 

259 

222 

213

222 

211 

244 

284 

259

287 

317 

352 

529 

368

520 

726 

1,200 

948 

826

804 

804 

771 

1,110 

76O

615 

570 

720 

859 

700 

6OO

Feb.

555 

499 

475 

558 

3,420

4,800 

5,000 

1,750 

1,380 

1,190

1,340 

1,150 

1,010 

966 

948

978 

996 

984 

1,020 

1,100

1,050 

1,050 

1,060 

1,080 

1,160

1,270 

1,550 

1,290

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Ha

nber. ...................................

lendar year 194J .......................

ter year 1949-50 .......................

Mar.

1,520 

1,280 

1,280 

1,520 

1,420

1,400 

1,230 

1,220 

1,210 

1,050

990 

930 

894 

859 

837

815 

870 

936 

876 

984

984 

1,O40 

1,190 

1,390 

2,550

1,490 

1,400 

1,560 

1,500 

1,640 

1,9,50

Apr.

2,160 

2,650 

5,020 

3,540 

3,6SO

3,420 

2,960 

2,960 

3,220 

2,810

2,710 

2,720 

2,980 

2,550 

2,390

2,660 

3,400 

5,900 

4,600 

5,710

7.O40 

7,660 

7,660 

7,570 

7,950

8,400 

8,770 

8,000 

7,150 

6,960

Secondfoot -days

4,147 

8,022 

7,679

r" 491,024

16,595 

57,567 

58,065 

140,940 

196,580 

140,790 

40,100 

9,559 

6,575

645,817

Peak discharge (base, 8.50O see. -ft.). Apr. 27 1* a.m

sec. -ft.; May 30 [s a.m.) 1Z~S&0 sec. -ft. ^

May

6,940 

4,980 

4,340 

3,710 

3,43O

3,350 

2,990 

2,690 

2,750 

3,010

3,520 

5,510 

5,530 

4,520 

5,350

7,190 

7,770 

7,930 

8,260 

9,080

9,370

9,iio

8,500 

7,500 

7,610

8,090 

8,470 

9,390 

9,340 

10,400 

10,500

Maximum

157 

800 

419

9,~240~

1,200 

4,800 

2,550 

8,770 

10,500 

10,200 

2,510 

537 

527

10,500

June

10,200 

9,290 

8,500 

7,98O 

7,680

7,910 

5,430 

4,290 

4,280 

4,210

4,030 

3,750 

5,800 

5,840 

3,900

4,120 

4,180 

4,100 

4,080 

4,210

4,570 

4,150 

5,820 

5,550 

2,890

2,560 

2,410 

2,400 

2,450 

2,450

July

2,510 

2,270 

2,190 

2,100 

1,96O

1,790 

1,710 

1,680 

1,670 

1,940

1,920 

1,650 

1,500 

1,380 

1,260

1,140 

1,050 

989 

940 

879

818 

775 

745 

715 

690

700 

750 

750 

671 

626 

572

Aug.

557 

521 

517 

439 

451

420 

595 

570 

553 

550

315 

305 

291 

279 

267

262 

248 

240 

233 

22S

228 

226 

223 

221 

216

210 

206 

201 

195 

193 

191

Minimum Mean

114 154 

121 267 

156 248

114 1,345

211 529 

475 1,555 

815 1,228 

2,160 4,698 

2,690 6,541 

2,400 4,695 

572 1,294 

191 502 

178 212

114 1,769

.) 10,400 sec. -ft.; May 21 (4 a.m

Sept.

189 

-186 

182 

182 

182

189 

197 

243 

327 

297

276 

254 

238 

228 

216

210 

212 

212 

 226 

221

214 

201 

191 

191 

187

187 

189 

186 

184 

178

Runoff in 

acre-feet

8,230 

15,910 

15,250

974,000

52,520 

74,120 

75,50(5 

279,600 

589,900 

279,500 

79,540 

18,560 

12,640

1,281,000

.) 11,3OO
TULARE LAKE BASIN 203

North Fork Kings River near Cliff Camp, Calif.

Location.--Water-stage recorder, lat. 37°00', long. 118°59', in NW^ sec. 12, T. 11 S., R. 

S7~E7, at Cliff Camp Bridge, 1 mile northwest of Cliff Camp and 2.3 miles downstream 

from Woodchuck Creek. Datum of gage is 6,143.95 feet above mean Sea level, adjustment 

of 1912 (levels by San Joaquin Light & Power Corp.).

Drainage area. 174 square miles.

Hecoras available. November 1922 to September 1950. August 1921 to November 1922 at site 

i mile upstream.

Average discharge.--26 years (1921-32, 1933-35, 1937-50), 343 second-feet.

Extremes.--Maxi5um discharge during year, 3,230 second-feet May 20, 29 (gage height, 10.40

 i'eet); minimum, 2.5 second-feet Dec. 11.

1921-50: 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 velocityarea studies and by logarithmic plotting; minimum, 0.6 second-foot Dec. 30, 1930.

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, furnished by San Joaquin Power Division, Pacific 

&as & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1949-50, except periods of lee effect 

(gage height, in feet, and discharge, in sec«nd-feet)

2.4 3.3 3.4 45 5.4 430- 8.0 1,410 

2.6 -6.* 3.7 78 S.O 618 8.5 1,700 

2.8 9.8 4.0 120 6.5 794 9.0 2,060 

3.0 16 4.4 190 7.0 982 9.5 2,440 

3.2 28 4.9 298 7.5 1,180 -* 

Discharge, in second- feet, water year October 1949 to September 1950

Day

1 

.. 2 

3, ' 4 

5

6 

7 

S

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

4.4 

4.5 

4.3

4.1 

4.1

4.1 

 4.3 

4.S

5.3 

6.5

7.3 

7.1 

6.5 

6.4 

5.7

6.4 

6.9 

9.0 

7.3 

7.6

8.2 

8.8 

8.6 

8.0 

7.6

7.3 

7.1 

6.9 

6.9 

6.7 

6.7

Nov.

6.5 

S.4 

6.0 

6.O 

5.3

5.8 

6.9

9.6 

15 

30

16 

27 

28 

31 

36

36 

35 

35 

37 

35

33 

30 

27 

30 

39

46 

36 

34 

34 

32

Dec.

26 

Zi 

ST.

19 

17

16

IS 

20

14 

13

B.O 

3.6 

10 

12 

12

12 

12 

13 

15 

16

20 

25 

30 

30 

26

26 

27 

27 

27 

24 

23

Jan.

25 

21

Me

b!9

b20 

22 

25

a27 

a27 

a26 

a27 

a27

b40 

94 

105 

87 

76

76 

82 

78 

63 

56

51 

52 

50 

b50 

49 

47

Feb.

45 

46 

4& 

SO

, 74

212-

134 

95 

83 

84

86 

81 

82 

84 

95

108 

111 

118 

131 

138

138 

139 

153 

177 

206

220 

214 

210

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

*ar.

204 

-186

2ZS 

£50

2io

194 

177 

146 

136

123 

112 

110 

111 

106

117 

146 

136 

146 

158

182 

237 

136 

160 

165

164 

164 

190 

245 

315 

366

*AS»r.

^ &T&, 

, 765 '

835 

526 

380 377- 

366

377 

445 

439 

361 

405

608 

798 

922 

1,170 

1,440

1,680 

1,800 

1,760 

1,820 

1,940

2,070 

2,040 

1,760 

1,620 

1,720

Secondfoot-days

200.1 

757.0 

586.6

37,034.4

1,400 

3,358 

5,606 

30, 722 

45,433 

19,911 

1,972 

324.0 

139.2

110,458.9

May

1/380

flea

6«7

675

 653 

574 

546 

602 

751

790 

798 

963 

1,290 

1,670

2,000 

2,080 

2,030 

2,180 

2,300

2,230 

2,080 

1,770 

1,620 

1,780

1,760 

2,030 

2,040 

2,170 

2,140 

2,070

Maximum

9.0 

46 

30

2,080

105 

220 

366 

2,070 

2,300 

1,960 

143 

23 

9.6

2,300

June

'ijiao

1*370

1,140 

798 

704 

729 

673

646 

604 

610 

551 

559

587 

549 

496 

472 

463

436 

385 

338 

291 

234

202 

177 

166 

158 

153

July

143 

130

118 

110 

102

99 

106 

101 

92 

93

95 

95 

79 

56 

58

51 

45 

40 

36 

34

30 

27 

26 

25 

27

32 

28 

27 

24 

20 

18

Aug.

26 

24

19 ' 17

16 

14 

13 

12 

11

11 

10 

10 

9 

9

9 

8 

7 

7 

6

6 

6 

6 

6 

5

5 

5 

5 

5 

4 

4

Minimum Mean

4.1 6.45 

5.8 25.2 

8.0 18.9

3.8 239

19 ' 45.2 

45 120 

106 181 

361 1,024 

546 1,466 

153 664 

18 63.6 

4.3 10.5 

3.8 . 6.31

3.8 303

S 

4

0 

4 

8 

3 

9

9 

9 

5 

2

7

6 

6 

2 

0 

5 

3

..A«$.

.4.0 

3.8 

3,8

3.8

4,1

4.8 

5.6 

8.4 

9.8 

8.4

7.3 

7.4 

7.3 

6.9 

6.5

6.4

6.7 

7.4 

8.2 

8.0

7.4 

7.1 

6.5 

612 

5.8

5.7 

5.6 

5.4 

5.2

5.1

Runoff In 

acre-feet

397 

1,500 

' 1,160

172,700

2,780 

6,660 

11,120 

60,940 

90,120 

39,490 

3,910 

643 

375

219.100

Peak discharge (base. 1.900 see.-ft.). Apr. 26 (8 p.m.) 2,910 

sec.-ft.; Hay 29 (8 p.m.; 3,230 sec.-ft.

sec.-ft.j May 20 (8 p.m.) 3,230

a No gage-height record; discharge computed on basis of records of flow at Balch powerhouse and 

records for station below Ranoherla Creek. 

. b Stage-discharge relation affected "by Ice.
204 TULARE LAKE BASIN

North Pork Kings River below Rancheria Creek, Calif.

Location.--Water-stage recorder, lat. 36°56', long. 119°00', in SE^ sec. 34, T. 11 S., R.

27 E., 1 mile upstream from Balch diversion dam and 1 mile downstream from Rancheria

Creek. Datum of gage is 4,153.20 feet above mean sea level, adjustment of 1912 (levels

by San Joaquin Light & Power Corp.). 

Drainage area. 225 square miles.

Kecoras available. March 1927 to December 1937, January 1939 to September 1950. 

Average discharge.--20 years (1927-36, 1939-50), 386 second-feet, 

extremes.--Maximum discharge during year, 3,420 second-feet May 29 (gage height, 10.35 feet);

minimum, 10 second-feet Sept. 4-6.

1927-50: Maximum discharge, 21,000 second-feet Dec. 11, 1937 (gage height, about 23

feet, from floodmarks), by computations of peak flow over Balch diversion and afterbay

dams, 1 mile and 7 miles, respectively, below station; minimum, 5 second-feet Aug. 29,

1931. 

Remarks. Records good except those for periods of ice effect or doubtful or no gage-height

record, which are fair. No storage or diversion above station. 

Cooperation. Water-stage recorder .graph, furnished by San Joaquin Power Division of Pacific

uas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1949-50, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

0.9 10 2.3 48 4.5 239 7.0 990 

1.1 13 2.7 68 5.0 319 8.0 1,540 

1.3 17 3.1 93 5.5 419 9.0 2,260 

1.5 21 3.5 123 6.0 560 9.5 «,660 

1.9 32 4.0 174 6.5 755

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

11 

11 

11 

11

11 

12 

12 

12 

14

14 

14 

14 

13 

13

13 

13 

14 

15 

15

15 

16 

16 

15 

15

14 

14 

14 

14 

14 

14

Nov.

13 

13 

13 

13 

13

13 

14 

16 

57 

171

42

44 

47 

48 

48

51

50 

47 

48 

48

46 

42 

39 

40 

46

54 

48 

44 

44 

42

Dec.

39 

30 

29 

27 

25

24 

24 

32 

29 

25

18 

17 

20 

21

22

22 

25 

29 

31 

28

30 

35 

40 

42 

38

37 

38 

40 

42 

38 

36

Jan.

36 

35 

30 

32 

30

26 

26 

29 

32 

33

36 

36 

b35 

39 

b35

44 

121 

127 

109 

107

111 

121 

152 

126 

b82

b78i 

80 

81 

b74 

b70 

b66

Feb.

b65 

66 

67 

159 

225

572 

259 

176 

151 

158

154 

133 

132 

132 

138

150 

160 

170 

175 

180

185 

190 

195 

235 

330

290 

260 

255

Month

Octo 

Hove 

Dece

Ca

Janu, 

Febr 

Hare 

Apri

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ftz*y

h. ......................................

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

ter year 1949-50 .......................

Mar.

250 

230 

230 

270 

250

270 

240 

210 

190 

180

175 

150 

150 

150 

150

155 

180 

170 

190 

210

225 

2SO 

250 

240 

228

235 

225 

258 

319 

391 

456

Apr.

1, 

1, 

1,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

1, 

1,

Secondfoot-days

416 

1,254 

933

106,256

2,039 

5,362 

7,107 

37,098 

53,592 

23,804 

2,579 

657 

416

135,257

Peak diacharge (base, 2,200 sec.-ft. J .--Apr'. 26 (9;:30

574 

732 

854 

942 

980

814 

686 

510 

474 

471

491

577 

578 

454 

501

730 

970 

150 

400 

730

000 

140 

100 

140 

260

400 

360 

140 

950 

990

May

1,740 

1,220 

1,050 

900 

854

S58 

746 

674 

745 

930

1,020 

975 

1,150 

1,540 

1,890

2,300 

2,380 

2,400 

2,420 

2,600

2,560 

2,390 

2,200 

1,920 

2,120

2,070 

2,310 

2,360 

2,420 

2,500 

2,350

Maximum

16 

171 

42

2,300

152 

572 

456 

2,400 

2,600 

2,320 

169 

44 

18

2,600

June

2,320 

2,100 

1,790 

1,670 

1,640

1,460 

1,010 

854 

881 

804

760 

694 

698 

65S 

674

676 

630 

550 

519 

501

482 

419 

369 

337 

282

242

215 

201 

190 

178

July

169 

150 

139 

129 

121

119 

121 

117 

109 

111

118 

115 

101 

86 

81

73 

68 

62 

58 

54

50 

47 

45 

43 

43

47 

46 

43 

41 

38 

35

Aug.

33 

36 

44 

36 

32

31 

28 

26 

24 

24

22 

22 

21 

20 

19

18 

18 

17 

16 

15

15 

15 

15 

14 

14

14 

14 

14 

14 

13 

13

Sept.

12 

12 

11 

10 

10

10 

11 

12 

13 

14

15 

14 

14 

14 

14

15 

16 

18 

17 

18

17 

16 

15 

15 

14

14 

14 

14 

14 

13

Mini, Hean »£<*£

11 13.4 825 

13 41.8 2,490 

17 30.1 1,850

11 291 210,800

26 65.8 4,040 

65 192 10,640 

150 229 14,100 

454 1,237 73,530 

674 1,729 106,300 

178 793 47,210 

35 83.2 5,120 

13 21.2 1,300 

10 13.9 825

10 371 268,300

p.m, 3,100 sec. -ft.; May 20 (10 p.m.) 3,410

sec.-ft.; May

b Stage-discharge relation"affected by ice.

Note. Ho gage-height record Jan. 3-5, Feb. 16 to Mar. 24, May 3, 4; doubtful gage-height record 

Aug. 20-26, Sept. 3-lSj discharge computed on basis of records of flow at Balch powerhouse and records for station near Cliff Camp.
TULARE LAKE BASIN 205

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

Location.--Water-stage recorder, lat. 36°12'55", long. 120°28'10", on line between Sw£ and 

SEtfof sec. 5, T. 20 S., R. 14 E., 1.1 miles upstream from Nunez Canyon, 3.0 miles downstream from White Creek, and 8 miles northwest of Coalinga. Altitude of gage, about 

1,100 feet (from topographic map).

Drainage area. 92 square miles (by Bureau of Reclamation). 

Records available. October 1949 to September 1950.

Extremes.--Maximum discharge during year, 35 second-feet Feb. 6 (gage height, 1.96 feet), 

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

Remarks. Records fair. No regulation or diversion above station.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.0 0

1.1 .1

1.2 .5

1.3 1.3

1.4 3.1

1.5 7.0

1.6 12

1.7 18

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

0

o

0 

0 

0

13 

.7 

0 

O 

2.5

.6 

0 

0 

0 

O

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

Mflv

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 

ax*y

ter year 1949-50 .......................

Mar.

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0 

0 

0 

0

0 

0 

0 

.6 

1.0

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

1.7 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot -days

0 

0 

0

-

0 

16.8 

1.6 

1.8 

0 

0 

0 

0 

.2

20.4

May

Maximum

0 

0 

0

-

0 

13 

1.0 

1.7 

0 

0 

0 

0 

.2

13

June July

Minimum

0 

0 

0

-

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

-

0 

.60 

.05 

.06 

0 

0 

0 

0 

.01

.06

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o

0 

0 

0

o

0 

0 

0 

.2 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff In 

acre-feet

0 

0 

0

-

0 

33

3.2 

3.6 

0 

0 

0 

0 

.4

40

Peak discharge (base. 40 see.-ft.). No peak above base.
206 SAN JOAQUIN RIVER BASIN

SAN JOAQUIN RIVER MAIN STEM

San Joaquin River above Big Creek, Calif.

Location. Water-stage recorder, lat. 37°15'00", long. 119°19'10", in NW£ sec. 11, T. 8 S.,

 R. '!J4 E., 3 miles upstream from Big Creek. Altitude of gage, about 2,500 feet (from

topographic map).

Drainage area. 1,042 square miles. 

Records available.--March 1922 to September 1950. 

Average discharge.--25 years (1925-50, period since diversion began through Ward tunnel),

i.aoy second-reet. 

Extremes.--Maximum discharge during year, 5,910 second-feet Apr. 26 (gage height, 13.50

 feetj; minimum, 74 second-fefet Dec. 12, 13.

1922-50: Maximum discharge, 52,500 second-feet Dec. 11, 1937 (gage height, 24.05

feet), from rating curve extended above 14,000 second-feet on basis of velocity-area

studies; minimum, 52 second-feet Sept. 24, 25, 1931. 

Remarks.--Records good. Flow partly regulated by Florence Lake (see p.215) and diversions

through Ward tunnel (see p.218) beginning in 19a5. 

Cooperation. Water-stage recorder graph and twelve discharge measurements, furnished by

 southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

6.2 79 8.0 473 11.0 2,400 

6.5 110 8.5 700 11.5 2,920 

6.7 137 9.0 955 12. O 3,520 

7.0 185 9.5 1,240 12.5 4,210 

7.3 249 10.0 1,570 13.0 5,000 

7.6 333 10.5 1,950 13.5 5,910

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

101 

99 

97 

96 

95

95 

95 

97 

103 

108

115 

122 

119 

113 

108

106

113 

109 

107 

108

111 

108 

108 

119 

114

107 

103 

101 

101 

95 

88

Nov.

85 

83 

82 

81 

80

79 

80 

84 

126 

497

232 

165 

173 

168 

163

157 

155

149 

149 

155

155 

150 

149 

194 

272

235 

225 

204 

196 

193

Dec.

185 

175 

160 

154 

148

144 

127 

130 

127 

122

107 

79 

80 

107 

113

119 

127 

188 

237 

155

140 

162 

168 

168 

160

155 

152 

152 

157 

155 

146

Jan.

144 

149 

131 

122 

135

133 

134 

144

149 

152

163 

173 

170 

180 

167

208 

692 

860 

685 

607

616 

710 

801 

965 

534

396 

392 

410 

403 

365 

327

Feb.

300 

295 

300 

924

1,410

2,770 

1,410 

928 

770 

740

800 

665 

621 

621 

645

690 

715 

710 

755 

780

770 

770 

785 

835 

933

1,020 

1,080 

1,080

Month

Oeto 

Hove

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

Hav

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1949

St......................................

ter year 1949-50 .......................

Mar.

1,040 

994 

994 

1,060 

1,200

1,050 

928 

885 

805 

73O

690 

612 

607 

597 

565

556 

631 

695 

690 

1,010

922 

1,090 

1,140 

1,150 

1,070

1,010 

977 

1,020 

1,180 

1,310 

1,560

Apr.

1, 

' 2, 

2, 

2, 

2,

2,

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

2, 

2, 

3, 

3,

4, 

4, 

4, 

4, 

4,

4,

5, 

4, 

3,

3,

Secondfoot -days

3,261 

4,916 

4,499

347,615

11,217 

24,122 

28,768 

88,520 

114,150 

71,570 

18,537 

4,725 

3,309

377,594

700 

050 

380 

660 

850

280 

930 

890 

750 

640

590 

690 

860 

590 

510

820 

400 

790 

340 

930

500 

650 

510 

400 

690

930 

030 

480 

860 

820

May

3,790 

2,720 

2,260 

1,920 

1,860

1,830 

1,610 

1,490 

1,480 

1,650

2,010 

2,030 

2,520 

3,190 

3,720

4,420 

4,930 

5,000 

4,950 

5,300

5,260 

5,140 

4,420 

3,750 

4,270

4,880 

5,390 

5,570 

5,280 

5,640 

5,870

Maximum

122 

497 

237

6,040

965 

2,770 

1,560 

5,030 

5,870 

5,460 

1,170 

227 

163

5,870

June

5,460 

5,390 

5,140 

4,420 

4,300

4,210 

2,770 

2,060 

1,970 

1,770

1,780 

1,570 

1,560 

1,630 

1,730

1,920 

1,970 

1,950 

1,980 

2,250

2,520 

2,27O 

2,060 

1,800 

1,400

1,170 

1,080 

1,090 

1,150 

1,200

July

1,170 

1,130 

1,050 

988 

900

885 

911 

825 

775 

745

725 

770 

730 

645 

584

530 

477 

435 

410 

385

368 

349 

339 

333 

318

339 

333 

300 

281 

265 

242

Aug.

227 

219 

219 

217 

208

191 

178 

171 

166 

162

155 

150 

150 

144 

140

138 

136 

136 

134 

133

133 

131 

130 

130 

126

123 

119 

116 

116 

114 

113

Minimum Mean

88 105 

79 164 

79 145

79 952

122 362 

295 862 

556 926 

1,510 2,951 

1,480 3,682 

1,080 2,386 

242 598 

113 152 

86 110

79 1,035

Sept.

113 

110 

109 

109 

110

115 

114 

140 

163 

138

127 

122 

115 

111 

107

104 

106 

108 

115 

US

114 

104 

100 

96 

94

92 

92 

91 

89 

86

Runoff In 

acre-feet

6,470 

9,750 

8,920

689,400

22,250 

47,850 

57,060 

175,600 

226,400 

142,000 

36,770 

9,370 

6,560

749,000

Peak discharge (base, 4,600 aec.-ft.). Apr. 26 (1 a.m.) 5,910 sec.-ft.
SAN JOAQUIN RIVER MAIN STEM 207

San Joaquin River below Kerckhoff powerhouse, Calif.

Location.--Water-stage recorder, lat. 37°04'45", long. 119°33'35", in NW£ sec. 10, T. 10 

s., K. 22 E., 1.1 miles downstream, from Kerckhoff powerhouse and 1.4 miles upstream 

from Big Sandy Creek. Datum of gage is 563.4 feet above mean, sea level (levels by 

Bureau of Reclamation).

Drainage area.--1,480 square miles.

Hecords available.--December 1936 to December 1937, December 1942 to September 1950.-

Extremes.--Maximum discharge during year, 6,890 second-feet May 31 (gage height, 19.03 

feet); minimum, 61 second-feet Nov. 4, 7.

1936-37, 1942-50: Maximum discharge, 75,000 second-feet Dec. 11, 1937 (gage height, 

46.5 feet), from rating curve extended above 20,000 second-feet on basis of velocityarea studies, computed flow over Kerckhoff Dam, and peak flow of San Joaquin River near 

Priant; minimum, 7 second-feet Nov. 5, 1944.

Remarks. Records good. Plow regulated by eleven power plants and six reservoirs above 

station with total usable capacity of about 315,000 acre-feet. Earliest storage began 

in 1901 at Crane Valley Reservoir. See records for Florence, Huntington, and Shaver 

Lakes. Contents of Crane Valley Reservoir was 25,100 acre-feet Sept. 30, 1949, and 

23,800 acre-feet Sept. 30, 1950.

Cooperation. Water-stage recorder graph, telemark readings, and 13 discharge measurements, 

rurnisned by Southern California Edison Co., obtained in connection with a Federal 

Power Commission project.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

5.3 

5.6 

6.0 

6.5 

7.0

71

88

118

166

224

8.5 

9.0 

9.5

294 

380 

4S4 

604 

738

10.0

10.5

11.0

12.0

13.0

884

1,050

1,220

1,630

2,120

14.0

15.0

16.0

17.0

18.3

2,720

3,440

4,210

5,010

6,180

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 '5

6 

7 

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.

514 

464 

719 

840 

566

773 

627 

583 

375 

620

500 

657 

603 

734 

416

312 

763 

63S 

741 

745

710 

736 

348 

544 

519

482 

520 

555 

709 

101 

227

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

Hov.

194 

178 

300 

122 

276

261 

71 

93 

413 

868

606 

235 

230 

283 

142

270 

457 

432 

374 

244

454 

661 

737 

126 

751

636 

613 

729 

1,130 

883

Dec.

1,090 

1,150 

860 

500 

1,220

1,020 

1,010 

826 

874 

613

410 

780 

658 

757 

706

646 

656 

422 

869 

794

712 

703 

597 

638 

460

458 

694 

740 

838 

732 

638

Month

Jan.

410 

780 

900 

888 

922

842 

718 

628 

695 

732

778 

802 

490 

638 

332

665 

1,090 

1,560 

1,460 

1,090

832

9S7 

1,190 - 

1,720 

1,660

1,270 

1,400 

1,070 

1,140 

1,170 

1,020

Feb.

877 

1,130 

927 

1,330 

3,480

4,590 

2,920 

2,290 

2,180 

1,980

2,060 

1,760 

1,720 

1,720 

1,790

1/720 

1,420 

1,520 

1,580 

1,420

1,720 

1,640 

1,580 

. 1,710 

1,710

1,810 

1,730 

1,850

lendar year 1949

ter year 1949-50 .......................

Mar.

2,000 

1,880 

1,800 

1,860 

2,120

1,900 

1,860 

1,780 

1,720 

1,600

1,520 

1,400 

1,630 

1,420 

1,400

1,430 

1,420 

1,540 

1,620 

1,480

1,780 

1,710 

1,990 

2,160 

2,190

2,040 

1,820 

1,840 

1,890 

2,230 

2,500

Apr.

2,580 

2,580 

2,820 

3,460 

3,660

3,280 

2,680 

2,910 

2,760 

2,810

2,840 

2,790 

2,850 

2,740 

2,700

2,560 

2,850 

3,360 

3,930 

4,460

5,040 

5,230 

5,030 

4,990 

5,140

5,400 

5,540 

5,370 

4,590 

4,290

Secondfoot -days

17,641 

12,773 

23,071

589,990

29,939 

52,164 

55,530 

111,240 

135,140 

98,450 

47,369 

37,777 

34,196

655,290

May

4,490 

3,680 

3,100 

2,950 

3,120

2,820 

2,670 

2,790 

2,610 

2,790

2,860 

2,900 

3,240 

3,360 

4,250

4,990 

5,710 

5,780 

5,320 

5,730

5,460 

5,710 

5,140 

4,510 

4,550

5,460 

5,620 

6,000 

5,640 

5,730 

8,160

Maximum

840 

1,130 

1,220

6,610

1,720 

4,590 

2,500 

5,540 

6,160 

5,980 

2,170 

1,410 

1,290

6,160

June

5,980 

5,840 

5,670 

4,810 

4,750

4,750 

3,570 

2,990 

3,010 

2,930

2,660 

2,610 

2,660 

2,760 

2,900

2,790 

2,970 

2,910 

2,900 

3,110

3,420 

3,080 

3,000 

2,790 

2,440

2,220 

2,170 

2,180 

2,260 

2,320

July

2,170 

1,960 

2,040 

1,940 

2,000

2,050 

1,740 

2,000 

1,930 

2,090

1,760 

1,850 

1,720 

1,600 

1,380

1,280 

1,280 

1,380 

1,300 

1,420

1,260 

1,110 

850 

1,210 

1,200

1,320 

1,290 

1,240 

1,130 

749 

1,120

Minimum

101 

71 

410

71

332

877 

1,400 

2,560 

2,610 

2,170 

749 

688 

770

71

Aug.

1,410 

1,140 

1,290 

1,360 

1,400

688 

1,160 

1,360 

1,270 

1,310

1,280 

1,320 

981 

1,180 

1,270

1,350 

1,320 

1,270 

1,160 

749

1,190 

1,330 

1,200 

1,330 

1,330

1,270 

969 

1,150 

1,220 

1,270 

1,250

Mean

569 

426 

744

1,616

966 

1,863 

1,791 

3,708 

4,359 

3,282 

1,528 

1,219 

1,140

1,795

Sept.

1,220 

1,250 

770 

947 

1,230

1,200 

1,280 

1,230 

1,290 

846

1,220 

1,230 

1,250 

1,250 

1,290

888 

1,030 1,190 * 

1,250 

1,240

1,200 

1,050 

1,060 

805 

^120

1,290 

1,140 

1,240 

1,130 

1,060

Runoff in 

acre-feet

34,990 

25,330 

45,760

1,170,000

59,380 

103,500 

110,100 

220,600 

268,000 

195,300 

93,960 

74,930 

67,830

1,300,000
208 SAN JOAQOIN RIVER MAIN STEM 

Millerton Lake at Friant, Calif.

Location. Water-stage recorder, lat. 37°00' , long. 119°42 I , in SW£ sec. 5, T. 11 S., R. 

21 K., at Friant Dam on San Joaquin River and immediately upstream from Cottonwood 

Creek. Datum of gage is at mean sea level (levels by Bureau of Reclamation).

Drainage area. 1,633 square miles.

Records available. October 1941 to September 1950.

Extremes. Maximum contents during year, 436,400 acre-feet June 7 (elevation, 559.98 

reet); minimum, 42,700 acre-feet Nov. 8 (elevation, 406.6 feet).

1941-50: Maximum contents, 473,300 acre-feet June 29, 30, 1948 (elevation. 568.1 

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, compieted in December 1942. Control valves installed in February 1944, and spillway gates 

installed in November 1947. Usable capacity, 503,200 acre-feet between elevations 

375.4 feet (invert of river outlet) and 578.0 feet (top of drum-type spillway gates) 

above mean sea level. Millerton Lake is one of the storage units in Central Valley 

project. Records including extremes, show usable contents at 12 p.m.

Cooperation. Gage-height record furnished by Bureau of Reclamation.

Contents, In acre-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

73,500

71,300

70,000

69,100

67,900

66,900

65,800

64,500

63,100

61,900

60,700

59,500

58,400

57,500

56,200

54,700

53,600

52,900

52 , 600

52 , 600

52,500

52,200

51,500

50,800

50,300

49,500

49,200

49,100

49,000

48,400

47,500

Nov.

46,70O

46,000

45 , 500

44,900

44,300

43 , 900

43,300

42,700

42,800

43,400

44,000

44,100

43,900

43,700

43,500

43,300

43,500

43,600

43,600

43,400

45,300

43,600

44,000

44, 100

44,400

44,900

45,400

46,300

47,600

49,000

~ .

Dec.

50,400

51,900

52 , 900

53,400

54,500

55,500

56,500

57,400

58,100

58,400

58,400

58,800

59,000

59,000

59,000

59,100

59,100

59,000

58,900

59,100

59,100

59,200

59,700

60,400

60,300

61,400

62,500

63,200

64,400

65,500

66,500

Jan.

67,500

68,400

69,600

71,200

72.7QO

74,100

75,200

76,300

77,400

78,600

80,000

81,300

82,300

83,300

84,100

85,300

87,800

90,400

93,000

95,100

96,500

98,200

100,600

105,700

106,800

109,100

111,600

115,900

115,800

118,100

119,900

Feb.

121,300

123,400

125,100

128,100

136,000

146,200

152,200

156,700

161,000

164,700

168,600

172,000

175,100

178,100

180,600

182,800

184,300

186,000

187,800

189,400

191,600

193,600

195,400

197,200

198,600

200,200

201,500

203,300

-

-

-

Mar.

205,200

206,800

208,300

209,600

211,300

212,100

212,300

212,300

212,100

211,600

210,700

209,600

209,000

208,000

206,500

204,700

203,000

201,800

200,900

199,600

198,800

197,700

197,300

198,100

199,700

201,100

202.00Q,

202,400

202,400

203,300

205,000

Apr.

206,800

208,500

210,300

212,300

214,300

215,400

215,500

216,900

219,200

222,100

225,100

227,300

228,900

230,500

232,100

233,500

235,200

237,400

240,400

244,400

249,200

254,100

258,500

262,900

267,400

272,100-

277,200

281,900

285,000

286,900

-

May

289,300

290,700

291,700

292,800

294,300

295,200

295,800

296,500

297,200

298,300

299,600

301,000

303,100

305,300

309,200

314,600

321,400

327,900

333,500

339,900

345,700

352,100

357,500

361,400

365,300

370,900

376,800

383,500

589,400

395,700

403,300

June

410,300

417,100

423,500

428,100

432,100

435,500

436,400

436,200

'435,300

434,100

432,500

430,500

428,400

426,000

423,900

421,400

419,200

416,900

414,600

412,700

411,000

408,700

406,100

403,200

399,600

395,600

391,700

587,800

384,100

380,400

-

July

376,300

371,700

367,300

362,800

358,500

354,400

349,500

345,100

340,600

336,900

333,000

329,500

325,700

321,600

317,000

312,300

307,500

302,700

297,300

292,400

287,500

282,400

276,900

271,900

267,100

262,500

257,900

253,200

248,300

242,,800

23.7,700

Aug.

233,200

228,300

225,600

218,800

214,200

208,200

203,300

198,900

194,600

190,600

186,500

182,400

177,700

173,400

169,000

165,600

162,100

158,600

155,000

150,600

147,000

143,400

140,200

137,600

135,400

133,200

130,400

127,900

125,600

122,900

120,300

Sept.

117,800

115,400

112,200

109,300

106,700

104 , 200

102,000

100,100

98,900

97,100

96,000

95,000

94,200

93,500

92,800

91,100

90,000

89,200

88,800

88,600

88,300

87,400

85,600

83,800

82,500

81,400

80,300

79,500

78,600

77,600

Monthly elevation and contents, water year October 1949 to September 1950

Date

Dec. 31. ...............

Calendar year 1949...

Aug 31

Sept. 30. ............ .. .

Water year 1949-50...

Elevation 

(feet)

412.8

427.8

-

436.0

-

Contents 

(acre-feet)

75,600

47,500

49,000

66,500

-

119,900

203,300

286,900

403,300

380,400

77,60.0

-

Change in contents 

during month 

(acre-feet)

-28,100

+1,500

+17,500

-91,600

+53,400

+83,400

+1,700

+81,900

+116,400

-22,900

-142,700

-117,400

-42,700

+2,000

Note. Gage heights Oct. 1 to Jan. 

8 a.m. staff-gage readings.

15, Sept. 23-30 interpolated from
SAN JOAQUIN RIVER MAIN STEM 209

San Joaquin River below Priant, Calif.

Location.--Water-stage recorder, lat. 36°59'04", long. 119°43'24", in sw£ sec. 7, T. 11

5., R. 21 E., 0.5 mile west of Priant, 1.5 miles downstream from Cottonwood Creek and

2 miles downstream from Priant Dam. Datum of gage is 294.00 feet above mean sea level

(levels by Bureau of Reclamation) 

Drainage area. -1,675 square miles. 

Kecoras available.--October 1938 to September 1950. October 1907 to December 1913 at site

4.5 miles upstream. December 1913 to September 1938 at site 2.5 miles upstream. 

Average discharge.--43 years (1907-50), 2,314 second-feet, including diversions to Madera

canal, 1944-bU, and Friant-Kern Canal, 1949-50. 

Extremes.--Maximum discharge during year, 2,750 second-feet Apr. 29 (gage height, 6.16

reet); minimum, 48 second-feet Jan. 11.

1907-50: Maximum discharge, 77,200 second-feet Dec. 11, '1937 (gage height, 23.8

feet, site and datum then in use); minimum, 5.5 second-feet Oct. 20, 1941. 

Remarks. Records excellent. Plow regulated by Millerton Lake beginning in 1944 (see

preceding page) and by other reservoirs described in "Remarks" for San Joaquin River

below Kerckhoff powerhouse. Diversion for irrigation through Madera and Friant-Kern

Canals above station (see p. 230). 

Cooperation. Twenty-six discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1949-5O (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Sept. 8-22)

1.8 48 3.0 283 5.0 1,540 

2.0 71 3.3 400 5.5 2,020 

'2.2 1O1 3.6 550 6.2 2,800 

2.4 137 4.0 780 

2.7 201 4.5 1,130

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

2&

27 

26 

29 

30 

31

Oct.

1,590 

1,580 

1,390 

1,220 

1,210

1,200 

1,200 

1,190 

1,190 

1,180

1,180 

1,170 

1,160 

1,160 

1,150

1,140 

1,130 

1,020 

806 

806

806 

800 

800 

793 

793

786 

756 

666 

622 

622 

622

Nov.

616 

581 

506 

506 

506

500 

452 

400 

404 

363

304 

304 

304 

304 

300

300 

300 

346 

396 

396

396 

400 

383 

345 

349

349 

349 

304 

247 

247

Dec.

280 

361 

361 

366 

396

460 

460 

460 

465 

465

465 

470 

584 

702 

702

702 

702 

702 

714 

708

708 

593 

324 

241 

241

241 

203 

152 

164 

127 

96

Jan.

96 

96 

96 

96 

96

96 

98 

99 

98 

98

76 

56 

56 

57 

56

56 

57 

56 

56 

56

56 

57 

58 

58 

59

59 

68 

70 

69 

67 

66

Feb.

64 

66 

61 

79 

93

108 

78 

72 

70 

75

72 

69 

67 

183 

534

538 

660 

660 

660 

638

578 

578 

627 

786 

987

994 

994 

994

Month

Octo 

Nove

Dece

Ca

Janu 

Pebp 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

fflber. ............-.-----------.--------.

lendar year 1949

ter year 1949-50 .......................

Mar.

1,000 

1,000 

1,070 

1,150 

1,150

1,440 

1,720 

1,720 

1,720 

1,820

1,930 

1,930 

1,870 

1,710 

1,690

1,800 

1,710 

1,610 

1,610 

1,640

1,720 

1,720 

1,730 

1,560 

1,080

904 

897 

1,100 

1,400 

1,270 

1,050

Apr.

1,070 

1,070 

1,230 

1,700 

1,940

1,940 

1,960 

1,770 

1,200 

897

914 

1,330 

1,590 

1,570 

1,500

1,500 

1,580 

1,900 

2,040 

2,060

2,230 

2,480 

2,480 

2,480 

2,550

2,680 

2,690 

2,720 

2,720 

2,720

Secondfoot-days

31,738 

11,457 

13,615

533,046

2,238 

11,385 

45,721 

56,511 

60,050 

69,540 

77,910 

63,840 

46,900

490,905

May

2,700 

2,530 

2,160 

1,930 

1,950

1,990 

1,990 

1,990 

1,970 

1,900

1,770 

1,780 

1,790 

1,800 

1,810

1,820 

1,820 

1,840 

1,880 

1,950

1,960 

1,900 

1,790 

1,790 

1,800

1,860 

1,900 

1,910 

1,920 

1,920 

1,930

Maximum

1,590 

616 

714

3,540

99 

994 

1,930 

2,720 

2,700 

2,530 

2,700 

2,490 

1,780

2,720

June

1,850 

1,780 

1,790 

1,790 

1,930

2,240 

2,240 

2,240 

2,280 

2,340

2,340 

2,350 

2,370 

2,430 

2,420

2,470 

2,530 

2,520 

2,520 

2,500

2,500 

2,500 

2,500 

2,500 

2,490

2,470 

2,400 

2,400 

2,390 

2,460

July

2,570 

2,560 

2,550 

2,540 

2,540

2,530 

2,520 

2,520 

2,520 

2,500

2,500 

2,490 

2,490 

2,500 

2,550

2,550 

2,570 

2,620 

2,700 

2,620

2,540 

2,530 

2,520 

2,480 

2,440

2,430 

2,420 

2,400 

2,400 

2,390 

2,420

Aug.

2,490 2,490' 

2,480 

2,470 

2,460

2,450 

2,440 

2,370 

2,220 

2,130

2,110 

2,100 

2,090 

2,080 

2,050

2,050 

2,030 

2,030 

2,020 

2,010

2,000 

1,980 

1,930 

1,880 

1,730

1,630 

1,620 

1,620 

1,610 

1,600 

1,670

Minimum Mean

622 1,024 

247 382 

96 439

96 1,460

56 72.2 

61 407 . 

897 1,475 

897 1,884 

1,770 1,937 

1,780 2,318 

2,390 2,513 

1,600 2,059 

1,330 1,563

56 1,345

Sept.

1,780 

1,770 

1,760 

1,740 

1,760

1,680 

1,580 

1,490 

1,360 

1,350

1,350 

1,350 

1,350 

1,340 

1,430

1,590 

1,580 

1,500 

1,330 

1,330

1,330 

1,530 

1,770 

1,760 

1,750

1,750 

1,740 

1,680 

1,580 

1,570

Runoff In 

acre-feet

62,950 

22,720 

27,000

1,057,000

4,440 

22,580 

90,690 

112,100 

119,100 

137,900 

154,500 

126,600 

93,020

973,600
210 SAN JOAQ0IN RIVER MAIN STEM

San Joaquin River near Mendota, Calif.

Location. Water-stage recorder, lat. 36°48'35", long. 120°22'35", in Sj sec. 7, T. 13 S., 

H. 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 1950.

Average discharge.--11 years, 1,325 second-feet.

Extremes. Maximum discharge during year, 402 second-feet June 19 (gage height, 2.66 feet); 

minimum, 5.2 second-feet Feb. 16, 17.

1944-50: Maximum discharge, 6,440 second-feet June 19, 1945; maximum gage height, 

10.12 feet Feb. 8, 1945; minimum discharge, that of Feb. 16, 17, 1950.

Remarks. Records fair. Flow regulated by Mendota Dam and several reservoirs and power 

plants above station. Many diversions above station for irrigation. Concerning regulation and diversion see "Remarks" for stations upstream.

Cooperation. Twelve discharge measurements furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

168 

165 

160 

156 

139

91 

72 

72 

72 

77

83 

85 

91 

91 

89

87 

67 

39 

97 

108

114 

119 

119 

119 

116

116 

105 

91 

93 

93 

81

Nov.

66 

64 

66 

64 

64

62 

56 

57 

55 

42

42 

42 

42 

42 

42

41 

41 

39 

37 

36

34 

34

36 

36 

36

37

37 

37 

39 

39

Dec.

68 

101 

127 

165 

146

116 

62 

36 

75

112

no"

112 

123 

139 

137

139 

141 

139 

141 

132

119 

US 

108 

75 

75

77 

75 

75 

73 

52 

23

Jan.

20 

20 

19 

61

141

141 

139 

134 

128 

137

146 

144 

120 

60 

49

55 

64 

81 

53 

37

27 

19 

17 

16

14

 13 

12 

13 

12 

12 

13

Feb.

13 

13 

13 

13 

14

14 

34 

91 

141 

156

137 

108 

54 

8.8 

6.0

5.2 

7.4 

21 

24 

37

49 

57 

64 

66 

72

75 

85 

95

Month

Octo 

Nova 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

99 

105 

103 

103 

139

163 

135 

188 

178 

175

180 

198 

215 

220 

222

230 

225 

19O 

178 

218

297 

303 

309 

324 

279

25"2 

252 

265 

273 

265 

258

Apr.

250 

245 

265 

255 

252

245 

240 

228 

195 

175

156 

156 

208 

225 

220

218 

215 

212 

213 

225

252 

288 

285 

288 

294

282 

285 

283 

279 

270

Secondfoot -days

3,245

1,567 

3,191

68,801

1,922 

1,475.4 

6,591 

7,214 

7,034 

9,777 

10,401 

9,528 

6,798

68,543.4

May

268 

268 

252 

25S 

262

252 

252 

248 

240 

228

228 

230 

230 

225 

212

192 

182 

195 

202 

200

200 

222 

23O 

228 

218

215 

220 

222 

225 

222 

208

Maximum

166 

66 

165

420

146 

156 

324 

29* 

263 

396 

357 

363 

282

396

June

212 

276 

300 

300 

288

265 

260 

262 

270 

279

285 

294 

306 

318 

339

378 

384 

396 

387 

369

372 

375 

360 

354 

354

360 

360 

360 

360 

354

July

342 

333 

333 

333 

333

330 

327 

330 

333 333"

351 

351 

351 

348 

351

351 

351 

357 

354 

354

342 

330 

 321 

324 

321

318 

313 

321 

318 

321 

321

Minimum

72 

34

23

13 .

12 

5.2 

99 

156 

182 

212 

318 

279 

178

5.2

Aug.

321 

321 

327 

354 

357

360 

363 

357 

336 

306

300 

297 

303 

306 

306

306 

300 

294 

294 

288

288 

282 

279 

282 

288

288 

282 

282 

288 

285 

286

Mean

105 

45.6 

103

186

62.0

52.7 

213 

240 

227 

326 

336 

307 

227

188

Sept.

282 

282 

279 

273 

273

270 

270 

260 

255 

248

252 

248 

248 

242 

235

222 

218 

208 

180 

178

180 

185 

190 

.188 

195

192 

19O 

185 

183 

182

Runoff In 

acre-feet

6,440 

2,710 

6,330

136,500

3,810 

2,930 

13,070 

14,310 

13,950 

19,390 

20,630 

18,900 

13,480

136,000
SAN JOAQUIN RIVER MAIN STEM 211

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 

si, K. 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).

.Drainage area. 5,630 square miles.

Records available. October 1940 to September 1950.

Average discharge. 10 years, 1,039 second-feet.

Extremes. Maximum discharge during year, 151 second-feet Jan. 12 (gage height, 3.19 feet): 

norlow Apr. 30, Aug. 29 to Sept. 3.

1944-50 '.. Maximum discharge, 5,630 second-feet Feb. 9, 1945 (gage height, 11.97 

feet, site then in use); no flow at times in 1945-46, 1948, 1950.

Remarks. Records fair. Some regulation by reservoirs and power plants above station. 

Practically entire flow of river and tributaries diverted during irrigation season. 

Concerning regulation and diversion see "Remarks" for stations upstream

Cooperation. Twenty-two'discharge measurements furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1949 to September 1950

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 

26 

29 

30 

31

Oct.

0.4 

.4 

.4 

.4 

.4

.4 

.3

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

.4 

.4 

.4 

.2 

.2

.2 

.2 

.2 

.2 

.3

.3 

.3 

.4 

.4

.2 

.2

Nov.

0.2 

.2 

.2 

.2 

.2

.3 

.4 

.4 

.5 

.6

.5 

.5 

.4 

.4 

.3

.2 

.2 

.2 

.1

' .1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Dec.

0.1 

.1 

.2 

.6 

1.6

2.3 

3.2 

3.7 

3.0 

2.8

2.3 

2.2 

2.3 

2.2 

2.8

3.0 

3.2 

3.6 

3.7 

3.6

3.4

3.4 

3.0 

3.0 

2.6

2.3 

2.2 

2.1 

1.8 

1.6 

13

Jan.

16 

28 

44 

43 

56

115 

125 

12S 

122 

124

139 

150 

14S 

113 

74

60 

59 

62 

74 

63

52 

44 

37 

32 

29

25 

26 

30 

26 

24 

23

Feb.

24 

23 

22 

24 

24

24 

22 

24 

55 

101

117 

108 

96 

71 

42

33 

27 

24 

29 

32

58 

47 

55 

62 

45

1.6 

.6 

.7

Month "

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

fflber. ..................-...-..---..-...-

lendar year 1949

ter year 1949-50 .......................

Mar.

0.8 

1.0 

1.0 

1.1 

1.4

1.7 

2.0 

2.3 

2.6 

2.S

2.S 

2.6 

2.6 

2.6 

3.4

3.2 

3.4 

3.0 

2.S 

2.6

3uO 

4.1 

4.3 

4.8 

5.0

4.3

4.1 

3.6 

3.7 

3.9 

3.7

Apr.

3.9 

3.6 

3.4 

2.8 

2.0

1.7 

1.8 

l.S 

1.7 

1.4

1.3 

1.2 

1.1 

1.1 

1.2

1.2 

1.2 

1.7 

2.0 

2.2

2.3 

2.S 

3.2 

3.. 6 

3.7

3.9 

3.7 

3.6 

2.0 

0

Secondfoot -days

9.0 

7.1 

S4.9

3,071.8

2,096 

1,171.9 

 90;2 

67.1 

67.1

m.s

142.0 

57.8 

10.7

3,915.3

May

0.6 

3.6 

3.4 

3.1 

2.8

2.6 

2.4 

2.1 

1.7 

1.6

1.4 

1.4 

1.6 

1.7 

2.0

2.0 

2.0 

2.0 

2.2 

2.3

2.6 

2.0 

2.3 

2.6 

2.6

2.3 

2.3 

2.1 

2.0 

2.0 

l.S

Maximum

0.4 

6 

13

260

150 

117 

5.0 

3.9 

3.6 

5.0 

6.0 

5.2 

.6

150

June

l.S 

2.0 

3.0 

3.6 

3.7

3.7 

2.8 

2.8 

2.S 

3.2

3.4

3.6 

3.7 

4.1 

4.5

5.0 

5.0 

2.1 

3.2 

4.3

4.3 

4.6 

4.8 

4.5 

4.1

4.3

4.1 

3.9 

4.1 

4.3

July

4.1 

4.1 

2.6 

3.5 

6.0

5.0 

4.5 

4.3 

4.8 

5.2

5.5 

5.4 

5.3 

5.3 

5.2

5.1 

5.0 

5.0 

4.9 

4.8

4.7 

4.7 

4.6 

4.5 

4.5

4.1 

3.9 

3.9 

3.9 

3.9 

3.9

MlnlnuD

0.2 

.1 

.1

.1

16

.6 

.8 

0 

.6 

1.6 

2.6 

0 

0

0

Aug.

4.1 

4.3 

4.1 

4.3 

4.3

4.5 

5.2 

5.2 

5.0 

4.5

3.1 

1.2 

.7 

.7 

1.0

1.2 

1.2 

1.2 

.6 

.4

.2 

.2

.1 

.1 

.1

.1 

.1 

_J 

0 

0 

0

Mean

0.29 

.24 

2.74

8.42

67.6 

41.9 

2.91 

2.24 

2.16 

3.72 

4.56 

1.86 

.36

10.7

Sept.

0 

0 

0 

.1 

.2

.3 

.3 

.2 

.2 

.2

.3 

.4 

.4 

.3 

.4

.5

.5 

.6 

.5 

.5

.5 

.4 

.4

.5 

.5

.5 

.5 

.5

.5 

.5

Runoff In 

acre-feet

16 

14 

166

e.ibso

4,160 

2,320 

179 

153 

153 

221 

282 

115 

21

7,760
212 "SAN JOAQUIN RIVER MAIN STEM

San Joaquln River at Premont 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 1950. February 1937 to September 1950 in 

reports or Division of Water Resources, Department of Public Works, State of Salifornia.

Extremes. Maximum discharge during year, 1,560 second-feet Feb. 9 (gage height, 63.80 

reetj; minimum, 18 second-feet Oct. 18.

1944-50: Maximum discharge, 4,140 second-feet Feb. 12, 1945 (gage height, 68.60 

feet); minimum, that of Oct. 18, 1949.

Remarks. Records fair. Some regulation by reservoirs and power plants above station. 

see "Remarks" for stations upstream. Practically entire flow of river and tributaries 

diverted during irrigation season; low flows consist mainly of return water. During 

periods of high flow, some water bypasses this station through Mud Slough.

Cooperation.--Fourteen discharge measurements furnished by the State of California.

Discharge, in second-feet, water year October 1949 to September 1950

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.

45 

41- 

38 

36 

35

35 

35 

36 

34

31

a28 

28 

28 

27 

29

29 

27 

21 

21 

21

21 

29 

28 

24 

23

21 

21 

20 

21 

25 

27

Nov.

28 

28 

30 

30 

28

28 

31 

a35 

36 

40

42 

38 

39 

38 40'

56 

53 

54 

58 

56

54 

52 

49 

46 

45

46 

46 

45 

44 . 

44

Dec.

42 

41 

39 

38 

37

37 

42 

44 

46 

50

47 

46 

42 

41 

42

38 

41 

47 

58 

63

62 

60 

61 

62 

60

61 

63 

. 61 

60 

61 

62

Jan.

63 

69 

70 

68 

60

57 

59 

84 

152 

159

170 

183 

207 

212 

211

211 

200 

192 

301 

412

400 

352 

288 

229 

200

175 

158 

160 

171 

309 

417

Feb.

410 

356 

299 

260 

256

391 

834 

1,390 

1,500 

1,130

862 

683 

553 

462 

398

344 

297 

260 

228 

206

189 

175 

165 

158 

158

156 

156 

148

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Ifav

June 

July 

Augu 

Sept

Ha

lender year 194!

ter year 1949-50 .......................

Mar.

135 

125 

120 

113 

108

107 

104 

115 

106 

100

97 

97 

98 

98 

122

121 

129 

129 

128 

147

158 

125 

99 

102 

100

. 158 

216 

275 

296 

249 

 211

Apr.

184 

165 

158 

150 

141

135 

135 

140 

160 

247

385 

529 

634 

632 

532

470 

470 

438 

367 

276

189 

159 

146 

167 

183

170 

150 

127 

120 

113

Seeondfoot-days

8S5 

1,259 

1,554

48,968

5,999 

12,424 

4,288 

7,872 

4,454 

3,663 

1,807 

1,412 

2,87*

48,491 '

May

110 

111 

117 

127 

135

162 

178 

197 

206 

191

175 

164 

156 

147 

159

154 

153 

153 

153 

147

134 

127 

113 

100 

100

94 

90 

98 

120 

186 

197

Maximum

45 

58 

63

559

417 

1,500 

296 

634 

206 

228 

86 

90 

307

1,500

June

197 

221 

228 

228 

179

124 

111 

117 

122 

118

127 

136 

140 

138 

107

88 

88 

83 

84 

103

103"

90 

80 

84 

 98

113 

102 

87 

83 

84

July

Minimum 

20 

28 

37

20

57 

148 

97 

113 

90 

80 

30 

23 25

20

82 

83 

86 

78 

66

69 

68 

50 

47 

50

47 

45 

45 

45 

43

1 44 51 ' 

68 

74 

 7S

72 

78 

83 

68 

55

50 

45 

40 

36 

34 

30

Aug.

28 

28 

26 

24 

24

24 

24 

23 

23 

24

28 

37 

70 

83 

72

66 

86 

90 

76 

63

67 

56 

50 

46 

42

39

37 

36 

40 

40 

40

Mean

28.5 

42.0 

50.1

134

194 

444 

138 

262 

144 

122 

58.3 

45.5 

95.8

133

Sept.

35 

30 

26 

25 

27

27 

28 

41 

46 

50

50 

56 

60 

58 

64

72 

98 

US 

3,46 

178

219 

307 

269 

197 

167

132 

108 

98 

79 

63

Runoff In 

acre-feet

1,760 

2,500 

3,080

97,140

11,9OO 

24,640 

8,510 

15,610 

8,830 

7,27O 

3,580 

2,800 

5,700

96,180

a Mo gage-height record; discharge Interpolated.
SAN JOAQUIN RIVER MAIN STEM 213

San Joaquin River near Newman, Calif.

Location.--Water-stage recorder, lat. 37°21'02", long. 120°58'34", in Sw£ sec. 3, T. VS., 

Fm3~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 1950. Prior to Oct. 1, 1937, and subsequent 

to uct. i, 1943, flow that bypassed station at discharges above about 9,000 second-feet 

not included in records.

Average discharge. 38 years, 2,343 second-feet.

Extremes. Maximum discharge during year, 3,110 second-feet June 3 (gage height, 7.63 feet); 

minimum, 132 second-feet Oct. 29 (gage height, 1.66 feet).

1912-50: Maximum discharge, 33,000 second-feet Mar. 7, 1938 (gage height, 18.50 

feet); minimum, 15 second-feet Aug. 9, 10, 1924.

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

Practically entire flow of river and tributaries diverted during irrigation season; low 

flows consist mainly of return water. See record for Merced River Slough which shows 

flow bypassing station.

Cooperation.--Ten discharge measurements furnished by Division of Water Resources, Departmerit or fublic Works, State of California.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

23 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

193 

196 

184 

184 

177

171 

174 

180 

196 

196

187 

180 

190 

177 

177

200 

184 

150 

141 

141

150 

156 

171 

168 

165

165 

162 

153 

144 

147 

165

Nov.

159 

150 

150 

153 

156

162 

168 

171 

174 

184

187 

184 

184 

187 

184

300 

303 

309 

313 

313

309 

306 

303 

193 

193

193 

193 

193 

187 

184

Dec.

184 

184 

180 

180 

187

187 

196 

300 

200 

203

303 

300 

196 

300 

193

193 

196 

303 

209 

320

236 

336 

220 

220 

230

220 

213 

209 

203 

203 

203

Jan.

30O 

209 

313 

213 

206

200 

203 

330 

387 

301

337 

358 

412 

440 

444

468 

481 

510 

860 

895

843 

779 

694 

615 

565

527 

497 

497 

577 

890 

865

Feb.

748 

684 

615 

573 

569

1,030 

1,380 

1,940 

2,140 

1,970

1,730 

1,560 

1,400 

1,360 

1,160

1,100 

1,040 

985 

955 

930

890 

875 

860 

846 

838

833 

834 

815

Month

Octo 

Novei 

Decei

Ca

Janui 

Pebr 

(tore 

Apr! 

Bay.

June 

July 

Augu 

Sept

Wa

giber. ...........-------------- ---------

lendar year 194

ter year 1949-50. ......................

Mar.

797 

788 

774 

770 

766

766 

756 

707 

707 

577

535 

514 

481 

456 

473

452 

453 

444 

436 

424

434

373 

335 

358 

481

535 

560 

556 

544 

485 

428

Apr.

384 

354 

343 

354 

339

305 

301 

331 

404 

565

774 

990 

1,140 

1,160 

1,090

1,060 

1,040 

960 

838 

707

553 

456 

400 

388 

384

350 

313 

273 

358 

265

Secondfoot -days

5,324 

5,545 

6,277

150,846

14,805 

30,530 

17,153 

17,075 

17,211 

30,882 

6,909 

7,145 

9,266

167,922.

May

383 

301 

313 

313 

308

350 

384 

413 

408 

373

388 

392 

361 

342 

358

331 

308 

333 

323 

320

323

361 

339 

312 

312

387 

262 

416 

2,000 

2,800 

2,910

Maximum

200 

213 

226

2,130

895 

2,140 

797 

1,160 

2,910 

3,100 

276 

295 

538

3,100

June

3,010 

3,070 

3,100 

3,990 

3,510

1,860 

1,980 

1,880 

1,310 

758

678 

650 

578 

563 

482

414 

410 

414 

433 

403

378 

349 

315 

a326 

8338

a349

360 

308 

292 

286

July

276 

376 

273 

338 

239

229 

306 

200 

217 

263

235

336 

197 

186 

186

308 

350 

347 

341 

233

203

200 

330 

250 

332

200 

186 

206 

186 

200 

211

Minimum

141 

150 

180

141

200 

569 

335 

258 

262 

286 

186 

175 

197

141

Aug.

197 

192 

175 

194 

193

300 

336 

311 

311 

217

197 

183 

229 

289 

386

357 

347 

363 

254 

357

295 

379 

270 

354 

326

208 

217 

226 

232 

229 

233

Mean

172 

185 

202

413

478 

1,090 

553 

569 

555 

1,023 

223 

230 

309

460

Sept.

311 

236 

308 

308 

300

197 

208 

211 

311 

236

347 

366 

279 

283 

289

305 

356 

410 

432 

463

486 

538 

510 

441 

396

353 

311 

289 

260 

257

Runoff In 

acre-feet

10,560 

11,000 

12,450

299,200

29,370 

60,560 

34,020 

33,870 

34,140 

60,860 

13,700 

14,170 

18,380

333,100

a Ho gage-height record* dleebarge Interpolated. 

207481 Q - M - 15
214 SAN JOAQUIN RIVER MAIN STEM

San Joaquin River near Vernalis, Calif.

Location.--Water-stage recorder, lat. 37°40'34", long. 121°15'51", in El Pescadero Grant,

 at Durham Ferry highway bridge, 3 miles downstream from Stanislaus River and 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 1950 (1922-23, 1925-29, low-water records only).

Average discharge. 21 years (1929-50), 4,926 second-feet.

Extremes.--Maximum discharge during year, 14,700 second-feet June 5 (gage height, 18.50 

reet); minimum, 460 second-feet July 29.

1922-50: Maximum discharge recorded, 51,200 second-feet Mar. 16, 1938 (gage height, 

26.64 feet), including flow through break in levee; maximum gage height, 27.05 feet 

Feb. 12, 1938, before break in levee; minimum.discharge, 184 second-feet Aug. 14, 1931.

Remarks. Records good except those for periods of doubtful or no gage-height record,

 which are fair. Practically entire flow of river and tributaries diverted during irrigation season; low flows consist mainly of return water.

Cooperation. Eleven discharge measurements furnished by the State of California. 

Revisions (water years).--W 841, W 881: 1936. W 931: 1940.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

e

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

770 

845 

900 

900 

850

915 

935 

1,020 

1,010 

990

1,010 

1,080 

1,180 

1,240 

1,380

1,710 

1,610 

1,320 

1,360 

1,440

1,570 

1,600 

1,570 

1,470 

1,360

1,460 

1,550 

1,600 

1,590 

1,570 

1,480

Nov.

1,370 

1,370 

1,520 

1,570 

1,630

1,650 

1,590 

1,510 

1,660 

1,740

1,820 

1,760 

1,640 

1,620 

1,510

1,590 

1,640 

1,660 

1,680 

1,680

1,590 

1,480 

1,540 

1,580 

1,620

1,480 

1,510 

1,530 

1,400 

1,510

Dec.

1,620 

1,700 

1,780 

1,820 

1,730

1,540 

1,600 

1,580 

1,660 

1,620

1,570 

1,540 

1,490 

1,520 

1,520

1,590 

1,660 

1,630 

1,600 

1,530

1,520 

1,550 

1,540 

1,520 

1,480

1,540 

1,400 

1,350 

1,470 

1,540 

1,490

Jan.

1,470 

1,410 

1,240 

1,210 

1,260

1,290 

1,270 

1,270 

1,230 

1,190

1,270 

1,320 

1,340 

1,380 

1,440

1,460 

1,450 

2,560 

4,080 

3,160

2,750 

2,650 

2,530 

2,380 

2,310

2,260 

2,240 

2,320 

3,180 

3,970 

3,060

Feb.

2,710 

2,570 

2,500 

2,420 

2,500

3,540 

3,510 

3,670 

3,750 

4,100

4,140 

4,310 

4,190 

3,930 

3,850

3,640 

3,550 

5,510 

3,460 

5,370

3,410 

3,830 

3,880 

3,820 

3,820

3,790 

3,760 

3,650

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febn 

Marc 

Aprl

Mfltr

June 

July 

Augu 

Sept

Wa

lender year 1949

ter year 1949-50 .......................

Mar.

3,430 

3,370 

3,390 

3,380 

3,330

3,180 

3,100 

2,890 

2,600 

2,460

2,300 

2,080 

1,840 

1,710 

1,580

1,450 

1,250 

1,150 

1,140 

1,110

1,090 

1,090 

1,060 

1,190 

1,940

2,830 

2,980 

2,500 

2,220 

2,150 

2,580

Apr.

2,790 

3,120 

3,170 

3,330 

4,100

4,060 

4,570 

4,040 

a4,500 

a6,000

h7,140 

h7,360 

a7,200 

h6,900 

a6,200

5,530 

4,940 

4,740 

4,880 

4,710

5,030 

6,080 

6,920 

7,160 

6,800

6,200 

5,780 

5,730 

5,920 

6,100

Secondfoot -days

39,285 

47,450 

48,700

625,319

61,950 

99,180 

68,370 

161,000 

155,380 

150,410 

21,308 

19,241 

28,372

900,646

May

5,740 

5,230 

4,990 

4,500 

3,920

3,260 

3,040 

2,940 

2,680 

2,380

2,310 

2,340 

d2,500 

2,780 

3,200

d4,000 

d4,600 

d5,300 

d6,100 

d6,400

6,500 

6,520 

6,650 

7,070 

7,180

6,840 

6,520 

6,380 

6,440 

7,480 

9,590

Maximum

1,710 

1,820 

1,820

5,080

4,080 

4,310 

3,430 

7,360 

9,590 

14,500 

1,050 

690 

1,370

14,500

June

10,800 

12,300 

13,700 

14,500 

14,500

12,600 

8,530 

6,590 

5,800 

( 4,180

3,360 

3,080 

2,920 

2,720 

d2,350

2,110 

2,020 

d2,000 

dl,900 

2,020

2,170 

2,220 

d2,300 

3,490 

3,950

2,570 

1,860 

1,480 

1,210 

1,180

July

1,030 

993 

986 

937 

828

799 

810 

735 

710 

755

772 

735 

730 

750 

725

670 

705 

642 

582 

586

556 

574 

574 

610 

566

504 

497 

466 

463 

532 

486

Minimum

770 

1,370 

1,350

382

1,190 

2,420 

1,060 

2,790 

2,510 

1,180 

463 

507 

642

463

Aug.

507 

532 

528 

510 

521

549 

606 

610 

614 

594

614 

637 

675 

685 

g675

g665 

g610 

624 

665 

632

690 

650 

680 

685 

665

646 

670 

665 

637 

610 

590

Mean

1,267 

1,582 

1,571

1,713

1,998 

3,542 

2,205 

5,367 

5,012 

5,014 

687 

621 

946

2,468

Sept.

646 

665 

720 

710 

642

650 

650 

655 

642 

685

840 

810 

810 

852 

894

1,000 

1,060 

1,270 

1,570 

1,320

1,310 

1,320 

1,320 

1,540 

1,210

1,080 

1,020 

951 

972 

958

Runoff In 

acre-feet

77,920 

94,120 

96,600

1,240,000

122,900 

196,700 

135,600 

319,500 

508,200 

296,300 

42,260 

58,160 

56,280

1,786,000

a Ho gage-height record; discharge computed on basis of records for stations on nearby streams, 

d Doubtful gage-height record; discharge computed on basis of records for stations on nearby 

streams.

g Computed from graph baaed on gage readings, 

h Computed from staff-gage reading.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 215

Florence Lake near Big Creek, Calif.

Location. Water-stage recorder, lat. 37°17', long. 118°58', in SE£ sec. 36, T. 7 S., R. 

27 E ., in gatehouse of Ward tunnel intake, near dam on South Pork 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 1950.

Extremes. Maximum contents during year, 64,100 acre-feet July 16-18 (elevation, 7,327.21 

reet); minimum, 83 acre-feet Dec. A (elevation, 7,222.31).

1925-50: 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; stortige 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 sates) above mean 

sea level. Additional storage of 168 acre-feet is not available for diversion. Water 

is diverted through Ward tunnel to Huntington Lake and used for power development in 

Big Creek plants. Records, including extremes, show usable contents at 12 p.m.

Cooperation.--Record of contents, furnished by Southern California Edison Co., obtained 

in connection with a Federal Power Commission project.

Contents, In acre-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

37,100

37,100

37,100

37,200

37,200

37,200

37,200

37,300

37,300

37,300

37,300

37,400

37,400

37,400

37,500

37,500

37,500

37,600

37,600

37,600

37,600

37,700

37,700

37,700

37,700

37,800

37,800

37,500

35,700

32,800

29,900

NOV.

27,100

24,400

22,000

19,800

17,800

15,800

13,900

12,000

10,300

8,650

7,080

5,690

4,290

2,930

1,970

1,170

585

307

244

311

404

396

175

105

103

103

97

93

95

95

-

Dec.

87

87

87

83

145

191

210

211

208

196

191

195

201

204

204

203

202

205

207

208

218

226

229

225

219

216

214

214

212

210

207

Jan.

207

207

205

205

204

203

202

203

204

209

211

214

217

215

220

230

250

254

263

260

256

254

250

240

237

233

240

233

242

243

239

Feb.

235

231

230

243

248

261

268

283

290

272

263

258

256

258

263

267

263

274

281

276

275

279

287

301

317

327

319

307

.

_

-

Mar.

298

289

295

321

324

299

289

281

270

263

255

253

249

246

244

246

252

250

254

255

263

275

271

262

292

312

317

334

343

374

395

Apr.

439

505

571

653

641

554

475

420

455

448

462

499

431

430

434

539

637

745

932

1,170

1,330

1,390

1,340

1,360

1,640

2,380

3,400

4,310

5,060

5,410

-

Bay

5,510

5,260

4,940

4,510

4,030

3,520

3,26!0

3,270

3,270

3,390

3,520

3,620

3,84)0

4,460

5,400

6,480

7,9*0

9,500

11,100

13,100

15,100

17,300

19,100

20,400

-22,100

23,800

25,700

27,900

31,700

34,70P

37,000

June

39,300

41,200

43,200

44,900

46,600

43,000

48,300

48,100

43,100

48,000

47,700

47,400

47,200

47,300

48,100

49,100

50,100

51,100

52,300

53,700

54,900

SS',800

56,300

56,700

56,700

56,900

57,200

57,600

58,200

59,200

-

July

60,300

61,200

62,200

63,200

63,700

63,900

64,000

63,900

63,800

63,700

63,700

63,700

63,800

63,900

64,000

64,100

64,100

64,100

64,000

63,900

63,700

63,400

63,200

62,900

62,600

62,500

61,900

61,600

61,200

60,800

60,300

Aug.

59,800

59,300

58,600

57,800

57,000

56,300

55,500

54,700

53,800

53,000

52,200

51,300

50,500

49,700

48,900

43,000

47,100

46,200

45,300

44,500

43,500

42,600

41,500

40,600

39,600

56,800

37,900

37,000

36,200

35,300

34,300

Sept.

33,400

32,400

31,500

30,600

29,600

28,700

28,000

27,400

26,700

26,000

2 5", 300

24,600

23,800

22,900

22,000

21,000

20,000

19,000

13,100

17,100

16,100

15,200

14,200

13,300

12,500

11,700

10,900

10,200

9,440

8,630

-

Monthly elevation and contents, water year October 1949 to September 1950

Date

Calendar year 1949. ....

Jan. 31..................

Feb. 28..................

Mar. 31. .................

May 31..................

Water year 1949-50. ....

Elevation 

(feet)

7 222 49

-

7 323 22

7 293 09

7 * 254 45

-

Contents 

(acre-feet)

95

-

-

Change In contents 

during month 

(aore-feet)

+16

j.*p

-28,420
216 SAN JOAQDIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

South Pork San Joaquin River near Florence Lake, Calif.

Location. Water-stage recorder, Parshall flume and concrete control, lat. 37°16'20", 

long. 118°57'50", in SE£ sec. 36, T. 7 S., R. 27 E., just downstream from spillway of 

Florence Lake Dam, 6 miles upstream from Bear Creek. Altitude of gage, about 7,200 

feet (from topographic map).

Drainage areau 171 square miles.

Records available. December 1921 to September 1950.

Average discharge. 27 years (1922-31, 1932-50), 291 second-feet, combined flow-of South 

Kork san joaquin River and Ward tunnel at intake.

Extremes. Maximum discharge during year, 264 second-feet Nov. 23 (gage height, 10.58 

FeeTT- no flow at times during December, January, February.

1921-50: Maximum discharge, 4,320 second-feet June 6, 1940 (gage height, 15.38 

feet); no flow at times.

Remarks. Records good except those for period of ice effect, which are fair. Flow, 

regulated by Florence lake beginning in 1925 (see preceding'page) and by diversion 

into Ward tunnel (see following page).

Cooperation.--Water-stage recorder graph and three discharge measurements, furnished by 

southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Rating table, water year 1949-50, except periods of Ice effact 

(gage height, In feet, and discharge, In seeond-feet)

7.82 0 8.3 O.S 9.0 3.6 9.6 17 

7.9 .1 8.4 1.1 9.2 4.5 9.7 28 

8.0 .2 8.5 1.5 9.3 5.0 9.S 42 

8.1 .4 8.6 1.8 9.4 6.6 10.0 89 

8.2 .6 8.8 2.6 9.5 10 10.3 174

Discharge, In second- feet, water year October 1949 to September 1950

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.

4.0 

4.0 

4.0 

4.0 

4.0

4.0 

4.1 

4.1 

4.0 

4.0

4.0 

4.0 

4.0 

4.0 

4.2

4.1 

4.0 

4.1 

4.1 

4.0

4.0 

4.0 

4.0 

4.0 

4.0

4.1 

4.1 

4.1 

4.0 

4.0 

3.9

Nov.

3.8 

3.7 

3.6 

3.6 

3.6

3.5 

3.4 

3.4 

3.3 

3.5

3\3

3.2 

3.0 

2.9 

2.8

2.7 

2.5 

2.4 

2.3 

2.2

2.2 

50 

152 

86 

53

53 

46 

41 

41 

42

Dec.

39 

33 

33 

*26 

2.7

1.8 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

..1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

.1 

_,! .1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

' .1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

Month

Goto 

Novel

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Va

lendar year 1949 

Etry

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

.2 

.2 

.3 

.3 

.3

Apr.

0.4 

.3 

.3 

.3 

.2

.2 

.2 

.2

.2 

.3

.3

.3 

.2

.1 

.1

.2

.1 

.1 

.1 

.1

.1 

.1

 » ! 

.1 

.1

1.3 

2.6 

2.7 

2.8 

2.8

Secondfoot-days

124.9 

628.9 

137.8

1,417.1

.8 

2.3

3.9 

16.9 

43.8 

83.4 

110.7 

128.2 

113.6

1,395.4

May

2.9 

2.9 

2.1 

1.4 

1.4

1.4 

1,4

1.4 

1.4 

1.2

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 

1.1 

1.4

1.6 

1.6 

1.6 

1.6 

1.7 

.2.0

Maximum

4.2

152 

39

152

1 

.1 

.3 

2.8 

2.9 

3.3 

4.0 

4.4 

4.2

152

June

2.3 

2.3 

2.4 

2.4 

2.4

2.5 

2.5

2.5 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

2.5 

2.6 

3.1 

3.1 

3.2

3.3 

3.2

3.2 

3.2 

3.2

3.2 

3.2 

3.2 

3.2

3.2

July

3.3 

3.3 

3.3 

3.5 

3.6

3.6 

3.6 

3.6 

3.6 

3.5

-3.5 

3.5 

3.5 

3.5 

3.5

3.5 

3.5 

3.6 

3.6 

3.5

3.5

3.6 

3.7 

3.6 3~.6

3.6 

3.6 

3.6 

3.8 

4.0 

4.0

Aug.

4. 

4.

3. 

3.

3.

3. 

3. 

3. 

3. 

4.

4. 

4.

4. 

4. 

3.

4. 

4. 

4.

4. 

4.

4. 

4. 

4. 

4. 

4.

4. 

4. 

4. 

4. 

4. 

4.

Minimum Mean

3.9 4.03 

2.2 21.0 

0 4.45

0 3.88

0 .03 

0 .08 

.1 .13 

.1 .56 

1.0 1.41 

2.3 2.78 

3.3 3.57 

3.8 4.14 

3.3 3.79

0 3.82

0 

0 

9 

9 

9

8 

8 

8 

9 

2

2

1 

1 

0 

8

1 

4 

4 

4 

4

4 

4 

3 

3 

3

3 

3 

2 

2 

2 

2

Sept.

4.2

4.1 

4.1 

4.1 

4.1

4.1 

4.0 

3.9 

3.9 

3.8

3.8 

3.8

3.8 3.7- 

3.7

3.7 

3.7 

3.6 

3.6 

3.6

3.5 

3.5 

3.5 

3.4 3.4'

3.3

3.7 

4.1 

4.1 

4.0

Runoff In 

acre-feet

248 

1,250 

273

2,810

1.6 

4.6 

7.7 

34 

87 

165 

220 

254 

226

2,770

* Winter dlachargy measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 10 to Har. 27.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 217 

Ward tunnel at Intake, Calif.

Location. Water-stage recorders, concrete control, and venturl meter, lat. 37°17', long. 

11B°58', In SE^ sec. 36, T. 7 S., R. 27 E., In gatehouse at entrance to tunnel. Altitude of gages, about 7,350 feet (from topographic map).

Records available. April 1925 to September 1950.

Average discharge. 24 years (1925-31, 1932-50), 259 second-feet.

Extremes.--Maximum daily discharge during year, 1,460 second-feet Oct. 30; no flow Nov. 21 

to Dec. 5.

1925-50: Maximum dally discharge, 1,990 second-feet Apr. 30, 1926; no flow at times.

Remarks. Records excellent. Ward tunnel diverts from Florence Lake, a reservoir on South 

ForTc San Joaquln 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.0 

1.0 

1.0 

1.0 

1.0

1.0

1.1 1.1 

1.1

1.0

1.0 

1.0 1.1 1.1 1.1

1.1

1.3 

1.4 

1.4 

1.4

1.3 

1.3 

1.3 

1.1 '1.1

1.1 

1.1 

173 

878 

1,460 

1,430

Nov.

1,400 

1,370 

1,230 

1,050 

1,030

f.OOO 

969 

937 

899 

859

812 

759 

706 

640 

564

473 

347 

176 

76 

18

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

4.4

23 

31 

30 

27

19 

19 

24 

27 

29

28 

27 

28 

29 

30

33 

40 

47 

46 

41

38

37 

37 

37 

35 

33

Jan.

32

32 

31 

32 

30

29 

29 

29 

29 

31

35 

37 

39 

40 

39

47 

57 

65 

72 

76

72 

69 

66 

61 

57

54 

57 

57 

56 

61 

59

Feb.

54 

53 

50 

54 

57

71 

76 

83 

95 

90

78 

73 

70 

71 

74

77 

79 

82 

87 

88

85 

86 

90 

96 

107

116 

119 

108

Month

Octo 

Novel

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

106 

98 

97 

107 

126

111 

98 

96 

85 

77

76 

67 

66 

68 

62

62 

68 

68 

69 

71

75 

87 

86 

86 

82

107 

110 

114 

132 

146 

164

Apr.

182 

220 

264 

312 

358

312 

253 

204 

197 

203

203 

221 

246 

206 

186

221 

306 

363 

464 

600

730 

813 

813 

774 

709

546 

466 

466 

463 

597

Secondfoot -day s

3,971.5 

15,315 

799.4

82,713.1

1,482 

2,269 

2,867 

11,898 

15,381.5 

21,199 

11,379 

14,981 

1.4,206

115.748.4

May

609 

604 

593 

579 

564

544 

401 

265 

264 

264

265 

355 

402 

413 

448

502 

471 

471 

482 

495

471 

510 

588 

602 

613

623 

812 

585 

.5

647

939 , Maxima

1,460 

1,400 

47

1,460

76 119* 

164 

813 

939 

897 

655 

544 

540

1,460

June

882 

S97 

872 

880 

8S1

887 

893 

891 

888 

888

888 

886 

885 

712 

518

520 

522 

524 

524 

526

670 

745 

862 

726 

726

568 

491 

493 

354 

200

July

202 

202 

163 

116 

370

491 

556 

655 

636 

595

537 

445 

398 

364 

330

279 

264 

264 

302 

317

320 

323 

326 

355 

366

364 

364 

364 

364 

361 

386

Minima

1.0 

0 

0

0

29 

50 

62 

182 

.5 

200 

116 

405 

394

0

Aug.

405 

405 

458 

486 

484

482 

480 

478 

475 

473

471 

469 

466 

462 

460

484 

497 

493 

493 

489

510 

544 

542 

539 

512

491 

486 

484 

460 

475 

508

Mean

128 

510 

25.8

227

47.8 

81.0 

92.5 

397 

496 

707 

367 

483 

474

317

Sept.

524 

522 

518 

516 

514

512 

449 

421 

418 

416

410 

408 

470 

491 

486

524 

540 

535 

526 

518

510 

502 

495 

489 

462

418 

413 

405 

400 

394

Runoff In 

acre-feet

7,880 

30,380 

1,590

164,100

2,940 

4,500 

5,690 

23,600 

30,510 

42,050 

22,570 

29,710 

28,180

229,600
218 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER

Ward tunnel at outlet, Calif.

Location. Water-stage recorder, lat. 37°16', long. 119°09 I , In SE£ sec. 5, T. 83., R. 

Kti E., just upstream from tunnel outlet at east end of Huntlngton Lake, 6 miles northeast of Big Creek. Altitude of gage, about 7,000 feet (from topographic map).

Records available.--November 1927 to September 1950. 

Average discharge.--22 years (1928-50), 437 second-feet.

Extremes. Maximum daily discharge during year, 1,640 second-feet May 31; pninimum dally, 

 (J.5'second-foot Oct. 1-6, 13, 18.

1927-50: Maximum daily discharge, 2,080 second-feet June 21, 1935; minimum dally, 

0.4 second-foot Dec. 7, 1945.

Remarks. Records good. Tunnel diverts from Florence Lake to Huntlngton Lake, receives 

diversions from Bear and Mono Creeks and at times from several other small! tributaries 

of South Fork San Joaquln River. See record for Ward tunnel at Intake on- preceding 

page.

Cooperation.--Water-stage recorder graph, furnished by Southern California Edison Co., 

obtained in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1949 to September'1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

E7 

£8 

29 

30 

31

Oct.

0.8 

.8 

.8 

.8 

.8

.8 

.9 

.9 

.9 

.9

.9 

1.0 

.8 

1.1 

1.4

1.0 

.9 

.8 

.9 

.9

2.4 

3.2 

3.1 

2.9 

2.9

2.9 

7.2 

150 

826 

3,520 

1,500

Nov.

1,480 

1,420 

1,270 

1,080 

1,050

1,030 

998 

969 

935 

888

848 

827 

772 

703 

624

532 

417 

256 

143 

84

48 

46 

44 

46 

50

52 

48 

46 

46 

44

Dec.

38 

34 

36 

33 

33

31 

57 

72 

66 

57

40 

43 

56 

63 

65

65 

63 

65 

65 

69

79 

95 

106 

104 

93

88 

84 

83 

81 

78 

75

Jan.

74 

73 

71 

72

71

68 

67 

67 

69 

74

78 

83 

88 

91 

90

100 

115 

132 

146 

160

154 

145 

140 

126 

124

120 

123 

121 

121 

130 

127

Feb.

119 

114 

109 

111 

118

142 

152 

169 

178 

170

155 

146 

142 

142 

146

153 

154 

160 

170 

174

170 

174 

180 

192 

203

230 

232 

218

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Itev

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ai*y

ter year 1949-50 .......................

Mar.

215 

200 

199 

220 

254

223 

204 

202 

180

167

164 

145 

146 

150 

138

138 

152 

152 

152 

155

160 

178 

176 

169 

165

221 

223 

226 

252 

273 

315

Apr.

333 

411 

499 

591 

666

569 

472 

387 

384 

381

381 

412 

456 

380 

359

441 

596 

691 

89] 

1,110

1,30O 

1,410 

1,470 

1,360 

1,330

1,180 

1,130 

1,130 

1,100 

1,250

Secondfoot-days

4,038.7 

16,796 

2,017

141,137.4

3,220 

4,523 

5,914 

23,070 

32,633 

39,866 

21,468 

17,062 

15,731

186,338.7

May

1,250 

1,130 

1,040 

971 

928

886 

730 

557 

561 

590

622 

718 

857 

1,000 

1,070

1,180 

1,160 

1,150 

1,170 

1,190

1,170 

1,180 

1,260 

1,270 

1,290

1,300 

1|,470 

1,350 

703 

1,240 

1,640

Maximum

1,520 

1,480 

106

1,520

160 

232 

273 

1,470 

1,640 

1,600 

1,140 

602 

588

1,640

June

1,540 

1,600 

1,530 

1,550 

1,560

1,560 

1,550 

1,540 

1,540 

1,520

1,510 

1,510 

1,490 

1,370 

1,140

1,140 

1,140 

1,150 

1,150 

1,150

1,280 

1,340 

1,420 

1,320 

1,290

1,120 

1,020 

1 050 

971 

815

July

Minimum

0.8 

44 

31

.8

67 

109 

138 

333 

557 

815 

496 

516 

420

.8

779 

791 

743 

668 

802

918 

1,060 

1,140 

1,080 

1,1070

960 

844 

781 

721 

658

579 

539 

518 

526 

531

521 

518 

510 

523 

540

547 

556 

529 

512 

496 

508

Aug.

523 

516 

573 

591 

579

571 

564 

557 

549 

542

537 

534 

531 

526 

521

540 

556 

552 

550 

547

561 

602 

596 

590 

562

537 

532 

528 

523 

520 

552

Mean

130 

560 

65.1

387

104 

162 

191 

769 

1,053 

1,329 

692 

550 

524

511

Sept.

573 

568 

566 

564 

564

559 

549 

537 

504 

488

473 

464 

515 

544 

536

566 

588 

588 

578 

571

556 

545 

536 

528 

504

, 450 

441 

432 

424 

420

Runoff In 

acre-feet

8,010 

33,510 

4,000

£79,900

6,390 

8,970 

11,730 

45,760 

64,730 

79,070 

42,580 

33 ,.840 

31,200

369,600
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESHO RIVER 219

Bear Creek near Vermilion Valley, Calif.

Location. Water-stage recorder, lat. 37°20', long. 118°58', in SW£ sec. 12, T. 7 S., R.

2T~E7, 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.--S3.S square miles.

Records available. November 1921 to September 1950.

Average discharge. 26 years (1922-30, 1932-50), 85.9 second-feet.

Extremes. Maximum discharge during year, 656 second-feet May 29 (gage height, 5.51 feet); 

minimum, 4.0 second-feet Oct. 5, 6, 7, Nov. 5,6.

1921-50: Maximum discharge, 1,530 second-feet July 21, 1936 (gage height, 6.90 

feet); minimum recorded, 1.2 second-feet Sept. 29 to Oct. 5, 1924.

Remarks. Records good except those for periods of ice effect, which are fair. No storage 

or diversion above station.

Cooperation. Water-stage recorder graph and several discharge measurements, furnished by 

soutnern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Revisions (water years). W 611: 1922(M).

Rating table, water year 1949-50, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

3.0 4.0 3.5 35 4.8 302 

3.1 6.7 3.6 48 5.0 390 

3.2 10 3.8 75 5.3 540 

3.3 16 4.0 105 

3.4 25 4.4 176

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.4 

4.4 

4.2 

4.2 

4.0

4.0 

4.0 

4.4 

4.9 

7.4

7.4 

6.7 

6.0 

6.0 

6.4

6.7 

6.4 

6.0 

6.0 

7.8

7.4 

7.0 

7.0 

7.0 

6.7

6.7 

6.4 

6.4 

6.4 

6.0 

6.0

Nov.

5.7 

5.4 

5.4 

5.2 

5.2

5.2 

6.0 

5.2 

6.4 

6.7

13 

26 

23 

20 

17

17 

16 

15 

15 

14

14 

12 

12 

12 

15

16 

14 

12 

12 

11

Dec.

10 

9.7 

b9.4 

D9.0 

bff.7

D8.5 

D8.3 

b8.2 

8.1 

bS.O

1 l>7.0 

> blO 

> b!6

b!3

Jan.

bll 

> blO 

, *b!2 

b20 

b22 

b!9

Feb.

I *b!4 

t b24 

b22

(.

\ b29 

\ b35

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

nber. ...................................

after. ...................................

lendar year 1949 

ary

Peak discharge (base. 440 sec. -ft.

Mar.

b31 

b29 

b31 

b37 

*b40

b30 

b28 

b26 

25 

22

20 

19 

bl8 

18 

17

17 

21 

21 

20 

19

19 

22 

21 

21 

b25

bSO 

b32 

b32 

39 

46 

54

Apr.

58 

80 

93 

110 

108

78 

60 

52 

60 

58

58 

67 

67 

52 

54

82 

108 

123 

166 

209

244 

247 

233 

244 

268

287 

291 

250 

224 

218

Secondfoot -days

184.3 

362.4 

330.9

23,558.7

489 

670 

830 

4,249 

7,982 

8,287 

3,440 

551 

426.0

27,801.6

. May 29 (9 p.m.)

May

186 

135 

111 

105 

92

82 

71 

74 

71 

82

90 

105 

134 

183 

215

 275 

306 

328 

376 

386

395 

381 

319 

319 

386

395 

455 

455 

480 

505 

485

Maximum

7.8 

26

520

54 

291 

505 

475 

212 

38 

40

505

June

445 

46O 

475 

440 

440

368 

250 

195 

198 

188

170 

166 

183 

193 

233

264 

279 

294 

315 

345

350 

324 

319 

261 

181

168 

172 

193 

206 

212

July

190 

195 

188 

178 

162

172 

212 

174 

154 

166

145 

135 

130 

118 

108

96 

88 

81 

75 

71

67 

64 

60 

57 

61

60 

54 

50 

46 

43 

40

Aug.

38 

36 

34 

30 

28

25 

24 

21 

20 

18

17 

17 

17 

16 

16

14 

14 

14 

14 

14

13 

12 

12 

12 

11

11 

11 

10 

10 

10 

12

Sept.

11 

10 

10 

10 

10

10 

28 

40 

30 

25

21 

19 

18 

15 

13

12 

16 

15 

14 

14

11 

10 

9.7 

9.3 

8.9

8.5 

8.1 

7.4 

7.4 

8.7

»**"- **» £rt"e£

4.0 , 5.95 366 

5.2 " 12.1 719 

10. 7 656

4.0 64.5 46,730

15.8 970 

23.9 1,330 

17 26.8 1,650 

52 142 8,430 

71 257 15,830 

166 276 16,440 

40 111 6,820 

10 17.8 1,090 

6.7 14.2 845

4.0 76.2 55,150

656 sec. -ft.

Winter discharge measurement made on this day 

b Stage-discharge relation affected by ice.
220 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Mono Creek near Vermilion Valley, Calif.

Location.--Water-stage recorder, lat. 37°22', long. US'SS 1 , in SW£ sec. 35, T. 6 S., R. 27 

E~;funsurveyed), 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.

Kecords available.--November 1921 to September 1950.

Average discharge. 26 years (1922-30, 1932-50), 145 second-feet.

Extremes.--Maximum discharge during year, 1,100 second-feet May 30 (gage height, 7.61 feet); 

minimum, 8.2 second-feet or less Dee. 9 (during period of ice effect).

1921-50: Maximum discharge, 1,760 second-feet June 2, 1938 (gage height, 8.62 feet); 

minimum, 6.5 second-feet Dec. 22, 1939.

Remarks. Records good except those for period of ice effect, which are fair. Jo storage 

or diversion above station.

Cooperation. Water-stage recorder graph and several discharge measurements, furnished-by 

southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

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

Rating table, water year 1949-50, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

4.8 

5.0 

5.2 

5.4

9.

26

52

89

5.6 

5.8 

6.0 

6.3

133

188

255

380

6.7 

7.1 

7.3

580

800

910

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

13 

13 

13 

13 

13

13 

13 

13 

14 

18

17 

16 

16 

15 

16

16 

15 

14 

13 

17

17 

17 

17 

16 

16

16 

16 

16 

16 

16 

16

Nov.

15 

*14 

14 

13 

13

14 

15 

15 

17 

18

16 

34 

38 

35 

32

30 

33 

35 

32 

30

29 

26 

25 

24 

26

26 

24 

23 

23 

22

Dec.

21 

20 

19 

18 

18

18 

18 

18 

18 

17

[" 

}'

i"

21

Jan. 1 Feb. [ Mar.

1 "

17

1 - 

1"

37 

33

1 "

) 

I 36 

L 41

I"

L 66

Month

Octo 

Hove

Dece

Ca

Janu 

Febr

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194S .......................

ter year 1949-50 .......................

Peak discharge (base, 540 sec. -ft.) .--Apr .

sec. -ft.; June 20 (11:30 p.m.) 674 see. -ft.

1 "

64

52 

50 

49 

48 

46

44

48 

46 

46 

46

48 

51 

48 

41 

45

60 

65 

65 

66 

69 

79

Apr.

87 

106 

128 

151 

159

141 

126 

106 

119 

110

108 

115 

119 

104 

106

128 

159 

188 

238 

303

371 

405 

400 

410 

445

47B 

485 

435 

405 

405

Secondfoot -days

470 

711 

596

39,368

843 

1,178 

1,767 

7,037 

13,843 

14,616 

5,655 

1,284 

952

48,952

May

380 

295 

255 

224

210

198 

179 

168 

171 

182

194 

210 

248 

307 

340

410 

490 

520 

565 

624

657 

652 

550 

505 

580

668 

750 

784 

789 

850 

888

Maximum

18 

38

762

79 

485 

888 

855 

323 

75 

73

888

June

822 

850 

855 

778 

772

679 

510 

425 

415 

390

371 

353 

366 

366

410

440 

455 

460 

490 

545

545 

505 

485 

415 

323

303 

307 

319 

331 

331

July

303 

323 

307 

295 

263

238 

252 

259 

241 

255

224 

220 

210 

201 

182

168 

156 

146 

138 

126

122 

117

no

106 

104

110 

124 

102 

93 

83 

77

Minimum

13 

13

-

41 

87 

168 

303 

77 

30 

19

-

Aug.

75 

71 

73 

64 

57

52 

48 

46 

45 

42

39 

39 

38 

36 

35

35 

35 

36 

36 

36

35 

33 

33 

32 

31

31 

31 

30 

30 

30 

30

Mean

15.2 

23.7 

19.2

108

27.2 

42.1 

57.0 

235 

447 

487 

182 

41.4 

31.7

134

Sept.

29 

28 

28 

30 

32

30 

60 

73 

52 

45

41 

36 

33 

30 

29

26 

28 

31 

31

31

28 

26 

25 

24 

23

22 

22 

20 

20 

19

Runoff in 

acre-feet

932 

1,410 

1,180

78,080

1,670 

2,340 

3,500 

13,960 

27,460- 

28,990 

11,220 

2,550 

1,890

97,100

26 (10 p.m.) 555 sec. -ft.. May 30 (11:30 p.m.) 1,100

Winter discharge measurement made on this day. 

Note. Stages-discharge relation affected by ice Oct. 19, Dec. 2 to Mar. 10, Mar. 12-14, 25-28 (no 

gage-height Record Jan. 3-12, Jan. 16 to Feb. 3; discharge computed on basis of 1 discharge measurement, weather records, and records for stations on nearby streams).
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 221

Huntington Lake near Big Creek, Calif.

Location. Water-stage recorder, lat. 37°14', long. 119°13', in SW£ sec. 14, T. 8 S., R.

 2FTT7, 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 1950. 1913 to 1926 summary records only, 

in water-supply Paper 881.

Extremes. Maximum contents during year, 88,600 acre-feet July 15-17; maximum elevation,

 6,949.61 feet July 16; minimum, 22,100 acre-feet Apr. 1 {elevation, 6,888.98 feet).

1913-50: 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

 191? 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. Additional storage of 600 acre-feet is not available for release. 

Water is used for power development in Big Creek plants. Records, including extremes, 

show usable contents at 12 p.m.

apei in" obtained

connection with a Federal Power Commission project.

Contents, in acre-feet, water year October 1949 to September 1950

Day

I

Z

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

59,100

53,400

57,600

56,300

56,000

55,200

54,500

53,800

53,100

52,400

51,700

50,900

50,100

49,400

48,700

48,200

47,500

46,8OO

46,100

45,400

44,700

43,800

43,600

43,000

42,400

41,800

41,200

40,900

42,200

45,100

47,700

NOT.

50,300

52,300

55,000

56,900

58,300

60,800

62,500

64,300

66,000

67,700

69,100

70,600

72,100

73,200

73,600

74,300

74,700

74,800

74,800

74,800

74,400

73,500

72,700

72,700

72,100

71,600

71,100

70,200

69,300

68,400

Dec.

67,400

66,300

65,400

64,700

63,600

62,800

62,100

61,700

61,400

61,000

60,600

60, ZOO

59,700

59,300

59,000

58,600

58,300

58,200

58,000

57,600

57,100

56,400

55,700

55,200

54,900

54,500

53,700

52,900

52,100

51,300

50,600

Jan.

50,100

49,600

48,800

47,900

47,000

46,200

45,700

45,200

44,700

44,100

43,600

43,100

42,800

42,700

42,600

42,400

42,300

42,100

42,100

42,000

41,900

42,200

42,500

42,200

41,700

41,200

40,800

40,900

40,900

40,800

40,700

Feb.

40,600

40,400

40,300

40,500

40,700

41,100

41,000

40,500

39,300

39,200

38,600

38,200

37,500

36,700

36,300

36,000

35,700

35,500

35,600

35,400

35,100

34,900

34,600

34,300

34,100

34,000

33,800

33,500

_

-

Mar.

33,300

33,000

32,800

32,500

32,400

32,200

31,900

31,500

31,100

30,600

30,100

29,600

29,000

28,500

27,900

27,400

26,900

26,400

25,900

25,5OO

25,000

24,700

24,300

24,200

23,800

23,500

23,200

22,900

22,700

22,500

22,2OO

Apr.

22,100

22,800

23,300

23,300

24,400

24,800

25,100

25,200

25,500

25, 500

25,500

25,400

25,500

25,400

25,200

25,500

26,300

27,300

28,300

29,400

30,800

32,300

34,000

35,600

37,000

38,200

39,300

40,100

40,700

41,700

- .

Hay

42,400

42,600

42/600

42,200

41,700

41,300

40,600

39,600

38,400

37,600

36,800

36,100

35,900

36,300

36,900

37,900

39,000

40,100

41,400

42,700

44,100

45,400

46,600

47,800

49,100

50,500

52,400

54,300

54,700

56,000

58,700

June

61,200

63,800

65,900

68,000

69,900

71,600

73,200

74,700

76,100

77,400

7S,9OO

80,200

81,300

8^,300

82,600

82,600

82,600

'&2,700

32,700

32,700

82,500

82,300

82,400

82,700

82,900

83,100

83,700

84,800

85,700

86,300

-

July

86,800

87,300

87,700

87,900

87,900

87,800

88,000

33,200

33,400

38,400

38,300

88,100

88,100

88,400

38,600

88,600

88,600

88,500

88,500

88,400

88,300

88,200

88,200

88,200

88,100

68,100

88,200

88,200

88,200

88,300

88,200

Aug.

83,200

38,100

88,200

88,200

38,300

88,400

88,400

88,400

88,400

88,400

88,400

88,400

88,400

88,400

88,300

88,300

88,300

88,300

88,300

88,200

83,200

38,300

88,400

88,400

83,400

88,400

88,500

88,400

88,300

88,200

88,200

Sept.

88,200

88,300

88,400

88,400

88,400

83,400

83,400

86,400

83,200

33,100

88,000

87,800

87,700

87,600

87,600

87,600

87,600

87,700

87,700

87,800

87,800

87,800

87,700

87,800

87,900

87,700

87,600

87,400

87,100

86,900

"

Monthly elevation and contents, water year October 1949 to September 1950

DateDec. 31...................

Calendar year 1949......

Sept. 30...................

Water year 1949-50......

Elevation 

(feet)

6,919.83

-

6,948.39

-

Contents 

(acre-feet)

50,600

-

58,700

86,200

86,900

-

Change In contents 

during month 

(acre-feet)

-17,800

-8,700

+17,000

0

-1,300

+27,100
222 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Big Creek below Huntington Lake, Calif.

Location. --Water-stage recorder, Parshall flume, and concrete control, lat. 37°13!'10", 

long. 119°12 I 50", in NW£ sec. 23, T. 8 S., R. 25 E., 800 feet upstream from Grouse 

Creek and 1,000 feet downstream from Huntington Lake. Altitude of gage, about 6,600 

feet (from topographic map).

Drainage area. --80. 0 square miles.

Records available. --June 1925 to September 1950 (records prior to October 1929 only for 

periods or spill from Huntington Lake).

Extremes . --Maximum discharge during year, 4.1 second-feet Apr. 22 (gage height, 2.31 

I'eet j ; minimum, 0.2 second-foot on many days.

1925-50: Maximum discharge, 2,040 second feet June 23, 1925 (gage height, 10.3 

feet, datum then in use), siphon spillways operating at Huntington Lake; minimum, 0.1 

second-foot Sept. 10-13, Oct. 7-18, Dec. 5-16, 1931.

Remarks . Records excellent. Flow regulated by Huntington Lake beginning in 1913 (see 

preceding page). During moat of year "flow is diverted for power development at Big 

Creek powerhouse No. 1.

Cooperation. --Water-stage recorder graph, furnished by Southern California Edison Co., 

obtained in connection with a Federal Power Commiasion project.

Rating table, water year J.949-50, except period of (ice effect 

(gage height, In feet, and discharge, In second-feet)

1.2 O.2 1.8 2.0 

1.4 .7 2.0 2.8 

1.6 1.3 2.2 3.6

Discharge, in second-feet, water year October £949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Nov.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.4 

.6

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

Dec.

0.3 

.3 

.3 

.3 

.2

.2 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2 

 .2

.2 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Jan.

O.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.9 

.8

.7 

.6

.6 

b.6 

b.6 

b.6 

b.6

.6 

.6 

.6 

.5 

.5 

.5

P«b.

0.5 

.5 

.5

1.0

1.3 

1.0 

.8 

.7 

.7

.7 

.7 

.7 

.7 

.7

.8 

.8 

.8 

.9 

.9

.9 

.9 

.9 

1.0

1.1

1.1 

1.2 

1.2

Month

Octo 

Hove 

Dece

ca

Janu 

Pebr 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

wa

ber. ....................................

lender year 1949

ter year 1949-50 .......................

Mar.

1.2 

1.2 

1.2

1.2

1.1 

1.1 

1.0 

.9 

.9

.9 

.8 

.8 

.8 

.8

.8 

.9 

.8

1.1 

1.3

1.3 

1.4 

1.3 

1.2 

1.1

1.0 

1.0 

1.0

1.1

1.4 

1.5

Apr.

1.8 

2.1 

2.2

2.4

2.3 

2.2 

1.9 

1.7 

1.7

1.8 

2.0 

1.9 

1.7 

1.9

2.3 

2.4 

2.8 

3.0 

3.2

3.4 

4.5 

3.4 

3.4 

3.4

3.3 

3.3 

3.1 

3.0 

2.8

Seoondfoot-days

6.2 

9.6 

8.5

265.1

14.1 

23.7 

33.4 

76.3 

60.4 

25.0 

14.4 

9.7 

3.4

239.7

May

2.7 

i.6 

2\4

2.4

2.3 

2.2 

2.1 

2.1 2~.l

2.1 

2.1 

2.1 

2.1

2.1

2.1 

2.1 

2.0 

1.9 

1.8

1.8 

1.7 

1.7 

1.6 

1.6

1.5

1.5 

1.4 

1.4 

1.3 

1.2

Maximum

0.2 

.6 

.3

3.3

.9

1.3 

1.5 

3.5 

2.7 

1.2 

.6 

.4 

.3

3.5

June

1.2

1.1 

1.1

1.0

1.0 

1.0 

1.0 

1.0 

.9

.9 

.9 

.9 

.8 

.8

.8 

.8 

.8 

.8

.7

.7 

,J~

.7 

.7 

.7

.6 

.6 

.6 

.6 

.6

July

0.6 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.5 

.6

.6 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4

.4 

.4 

.4 

.4 

.4

Aug.

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 

.2

Sept.

0.2 

.2 

.2 

.2 

.2

.2

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

.3 

.3

.3 

.3 

.3 

.3

.3

* * "«- See1?

0.2 C.20 12 

.2 32 19 

.2 .27 17

.2 .73 526

.3 .45 28 

.5 .85 47 

.8 1.08 66 

1.7 2.54 151 

1.2 1.95 120 

.6 .83 50 

.4 .46 29 

.2 .31 19 

.2 .28 17

.2 .79 575

b Stage-discharge relation affected by ice,.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 223

Pitman Creek below Tamarack Creek, Calif.

Location.--Water-stage recorder, lat. 37°12 1 , long. 119°12', in NW£ 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. 

Hecords available. December 1927 to September 1950. 

Average discharge. 22 years, 37.5 second-feet. 

extremes. Maximum discharge during year, 354 second-feet May 17 (gage height, 5.68 feet);

minimum, 0.1 second-foot Nov. 3, 4, 5.

1927-50: 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 periods of ice effect, which are fair. No diverslon above station; practically all flow diverted below station to Huntington-Shaver

conduit. 

Cooperation. Water-stage recorder graph and several discharge measurements, furnished by

Southern California Edison Co., obtained in connection with a Federal Power Commission

project. 

Revisions (water years). W 931: 1940.

Rating table, water year 1949-5O, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

1.8 0 2.5 18 4.0 108 

1.9 .8 2.8 30 4.4 146 

2.O 2.7 3.1 44 4.8 192 

2.1 5.1 3.4 61 5.2 256 

2.3 13 3.7 83 5.4 294

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Nov.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.8 

2.7

1.8 

1.5 

.8 

.6 

.6

.9 

.9 

.9 

.9 

.8

.8 

.8 

.8

:§

.9

.8 

.8 

.8

I 8

Dec.

0.8 

.8 

.6 

.6 

.5

.5 

.5

.5 

[ .6

Jan.

0.6

.6 

.7 

.8

1.0 

2.0

2.5 

2.0 

1.7 

1.6 

1.5

1.4 

1.3 

1.3 

1.3 

1.2 

1.2

Feb.

1.2 

1.2 

1.2 

1.3 

1.5

2.0 

3.0 

2.5 

2.2 

2.0

1.9 

1.8 

1.8 

1.8 

1.8

1.9 

2.0 

2.0 

2.1 

2.3

2.5 

3.0 

3.5 

4.0 

5.5

7.0 

9.0 

10

Month

Goto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1949

ter year 1949-50 .......................

Peak discharge (base, 2OO sec. -ft.). Apr.

sec. -ft. 

Note. Stage-discharge relation affected b

Mar.

12 

12 

13 

16 

18

17 

17 

16 

14 

13

12 

11 

11 

11 

11

11 

12 

12 

13 

16

18 

20 

18 

16 

17

16 

14 

14 

17 

20 

27

Apr.

34 

45 

57 

72 

77

66 

50 

43 

40 

35

33 

34 

38 

35 

37

54 

76 

100 

127 

158

189 

203 

200 

206 

222

238 

235 

219 

199 

206

Seeondfoot-days

6.2 

23. 0 

17.1

10,072.0

31.1 

82.0 

465 

3,328 

5,374 

1,512 

124.6 

14.2 

6.9

10,984.1

26 (7:3O p. 

y Ice Dec. 8

May

175 

128 

109 

96 

93

93 

82 

79 

91 

118

124 

121 

140 

166 

206

247 

251 

243 

249 

252

261 

242 

205 

196 

209

217 

217 

198 

198 

189 

179

Maximum

0.2 

2.7

278

2.5 

10 

27 

238 

261 

162 

10 

1.3 

.4

261

June

162 

142 

117 

103 

96

84 

69 

61 

57 

53

50 

46 

44 

42 

40

38 

35 

32 

30 

28

25 

24 

22 

21 

19

17 

16 

14 

13 

12

July

10 

9.2 

8.3 

7.4 

6.8

6.5 

6.2 

5.7 

5.7 

6.2

6.5 

5.7 

4.6 

3.8 

3.6

3.1 

2.9 

2.7 

2.5 

2.2

2.0 

1.8 

1.6 

 1.5 

1.5

1.3 

1.3 

1.1 

1.1 

.9 

.9

Aug.

0.9 

1.3 

1.1 

.9 

.8

.8 

.8 

.6 

.5 

.5

.5 

.5 

.5 

.4 

.4

.4

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Sept.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.4 

.4 

.4

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Minimum Mean £r°«e£

0.2 0.20 12 

.2 .77 46 

.55 34

27.6' 19,980

1.00 62 

1.2 2.93 16! 

12 15.0 922 

33 111 6,600 

79 173 10,660 

12 50.4 3,000 

.9 4.02 247 

.2 .46 28 

.2 .23 14

30.1 21,790

in. ) 332 sec. -ft.; May 17 (6:30 p.m. 354 

to Mar. 4, Mar. 12.
224 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Shaver Lake near Big Creek, Calif.

Location. Water-stage recorder, lat. 37*03* , 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 aval lable. January 1927 to September 1950.

Extremes. Maximum contents during year, 126,700 acre-feet June 26 {elevation, 5,366.02

 feet); minimum, 22,700 acre-feet Apr. 1 (elevation, 5,298.56 feet).

1927-50: 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; completediand 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, including extremes, show usable contents at 12 p.m.

Cooperation. Record of contents, furnished by Southern California Edison Co., obtained in 

connection with a Federal Power Commission project,

Contents, In acre-feet, water year October 1949 to September 1950

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.

64,100

64,100

63,80Q

63,3OO

62,800

62,400

62,10O

62; 100

62,000

61,900

61,800

61,600

61,300

61,100

61,100

60,100

60,900

6O,500

59,800

59,200

59,000

53,600

58,500

56,300

58,200

58,100

58,000

88,000

58,000

58,000

58,000

Ncv.

58,000

58,000

58,000

58,000

58,OOO

58,000

58,000

58,000

58,500

58,800

58,800

58,800

58,800

58,800

58,800

58,800

58,800

58,80C

58,800

. 58,800

58,800

58,70C

58,70C

58,700

58,700

58,700

58,70C

58,50C

57,90C

57,50C

-

Dec.

56,900

56,200

56,000

56,000

55,300

54,600

53,900

53,200

52,500

52,100

51,800

51,000

50,300

49,800

49,200

< 48,900

1 48,~70C

48,700

48,600

48,300

47,900

47,800

47,800

47,800

47,800

47,800

47, 700

47,500

47,400

47,400

47,200

Jan.

47,100

47,100

46,700

46,400

46,100

45,800

45,400

45,400

45,300

45,100

44,900

44, 700

44,700

44,800

44,800

144,900

45,100

45,200

45,300

45,300

45,400

45,100

45,000

44,600

44,100

43,500

42,900

42,500

41,900

41,400

40,80C

Feb.

40,200

39,600

39,000

39,200

39,100

39,800

39,500

38,800

38,000

37,300

36,700

36,300

35,700

35,200

34,700

|34,200

33,700

L 33,200

32,800

32,300

31,800

31,300

30,900

30,600

30,300

30,000

29,700

29,400

_

-

Mar.

29,100

28,800

28,500

28,300

28,OOO

27,600

27,400

27,100

26,900

26,600

26,400

26,100

25,900

25,600

25,300

25,100

24,900

24,600

24,500

24,400

24,200

24,200

24,100

24,200

24,000

23,700

23,500

23,400

23,300

23,100

22,800

Apr.

22,700

22,300

23,100

23,400

23,700

24,100

24,400

24,800

24,700

24,500

24,200

24,100

24,300

24,000

23,600

23,800

24,100

24,600

25,500

27,200

29,100

31,200

33,400

35,700

38,100

40,700

43,000

45,4OO

47,900

50,400

-

Hay

52,900

55,300

57,4OO

58,900

60,500

61,800

62,900

63,900

65,000

66,OOO

67,600

68,800

70,700

72,700

74,600

76,300

78,000

80,000

82,200

84,700

187,300

89,600

91,700

93,700

.95,800

97,900

100,000

102,200

104,400

106,500

108,000

June

109,200

110,000

'111,200

112,300

113,400

114,500

115,600

116,000

116,100

116,300

116,600

116,800

116,900

117,000

117,300

117,800

118,600

119,300

120,000

120,700

122,000

123,600

124,900

125,700

126,500

126, 700

126,100

125,000

123,900

122,800

-

July

122,100

121,500

120,900

120,000

119,400

119,300

119,100

118,900

118,800

118,800

118,800

118,800

118,600

118,100

117,600

117,400

116,800

116,300

115,700

115,300

114,900

114,900

114,900

114,600

114,100

113,700

113,200

112,700

112,300

112,200

111,600

Aug.

111,000

110,300

109,500

108,600

108,100

107,900

107,100

106,300

105,400

104,600

103,700

103,000

102,500

101,600

100,800

100,000

99,100

98,200

97,800

97,600

96,800

95,900

95,000

94,200

93,200

92,400

91,800

91,000

.90,200

 89,400

88,600

Sept.

67,800

37,000

86,700

86,400

85,600

84,600

83,800

83,000

32,600

82,400

81,600

80,900

80,100

79,300

73,600

78,200

78,100

77,300

76,500

75,800

75,300

74,900

74,500

74,200

73,,4OO

72,600

71,900

71,100

70,300

69,700

-

Monthly elevation and contents, water year October 1949 to September 1950

Date

Oct. 31...................

Nov. 30...................

Dec . 31 ...................

Calendar. year 1949 ......

Feb. 28.... ...............

«ar. 31...................

Apr. 30. ..................

Sept. 30.... ...............

Water year 1949-50. .....

Elevation 

(feet)

5,320.29

-

5j355.71_

-

Contents 

(acre-feet)

,64,200

47,200

-

OQ Aty\

108 000

oo cfv\

69,700

-

Change in contents 

during month 

(acre-feet)

-10,300

+7,600

i-l i Of\f\

-18,900

+5,500
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 225

Huntington-Shaver conduit at outlet, Calif.

Location.--Water-stage recorder and concrete control, lat. 37°10 ! , long. 119°14', in SW£ 

sec. 10, T. 9 S., R. 25 E., at tunnel outlet, 4 miles south of town of Big Creek. 

Altitude of gage, about 6,680 feet (from topographic map).

Records available. October 1928 to September 1950. 

Average discharge. 21 years (1929-50), 195 second-feet.

Extremes. Maximum daily discharge during year, 1 290 second-feet May 22; minimum daily, 

1.4 second-feet Oct. 8 to Nov. 26.

1928-50: 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. Discharge above 900 second-feet computed as the sum of unpublished 

records for stations at intake of conduit and Pitman Creek shaft plus 3 second-feet. 

Conduit diverts from Huntington Lake to Shaver Lake, with additions from Pitman Creek 

and seepage en route.

Cooperation. Water-stage recorder graph and three discharge measurements, furnished by 

soutnern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Revisions (water years). W 931: 1940.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

Z 

3 

4 

5

6 

7

S 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

30

21 

32 

33 

34 

25

36 

27 

38 

39 

30 

31

Oct. »

3.1 

3.1 

2.7 

1.6 

1.6

1.6 

1.6 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

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

Hov.

^ 1.4

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.6 

1.6 

1.6 

1.6

Dec.

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.7 

1.7 

1.7 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

2.1 

2.1

Jan.

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.2 

2.7 

3.3 

3.8

4.3 

3.S 

3.6 

3.3 

3.1

2.9 

2.9 

2.9 

2.7 

2.7 

3.7

Feb.

2.7 

2.7 

2.7 

2.9 

2.9

3.6 

4.8 

4.8 

4.5 4.0-

3.8 

3.8 

3.6 

3.6 

3.8

4.0 

4.3 

4.5 

4.8 

5.3

5.3 

5.6 

6.3 

6.9 

8.2

9.3 

10 

12

Month

Octo 

Hove

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July

Augu 

Sept

Ha

her. ....................................

lendar year 1949 

ary

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

ter year 1949-5O .......................

. Mar.

13 

13 

14 

17 

19

IS 

18 

17 

15 

14

13 

12 

12 

12 

12

12 

13 

13 

14 

17

19 

21 

20 

18 

18

17 

15 

15 

18 

21 

26

Apr.

35 

47 

58 

72 

79

68 

53 

45 

41 

36

34 

36 

39 

48 

68

75 

98 

131 

393 

738

878 

947 

1,010 

1,070 

1,140

1,200 

1,240 

1,240 

1,230 

1,260

Secondfoot -days

48.9 

42.8 

54.2

49,016.8

80.5 

140.7 

496 

13,409 

33,710 

18,009 

3,837.6 

75.4 

75.4

69,979.5

May

1,260 

1,130 

1,070 

1,090 

1,080

1,070 

1,050 

1,020 

1,000 

1,000

979 

954 

959 

988 

1,050

1,110 

1,150 

1,170 

1,210 

1,240

1,280 

1,290 

1,130 

1,080 

1,120

1,110 

1,080 

1,090 

1,110 

1,050 

790

Maximum

3.1 

1.6 

2.1

1,480

4.3 

12 

36 

1,260 

1,390 

1,060 

513 

2.7 

2.7

1,390

June

622 

614 

598 

591 

589

584 

571 

568 

569 

569

573 

575 

577 

578 

670

804 

800 

796 

794 

790

913 

1,060 

917 

758 

758

560 

168 

16 

14 

13

July

12 

12 

10 

9.6 

231

441 

441 

470 

512 

512

476 

441 

194 

20 

5.1

4.3 

4.0 

4.0 

3.8 

3.6

3.3 

3.3 

3.1 

3.1 

2.7

2.7 

2.6 

2.6 

2.6 

2.6 

2,6

Minimum

1.4 

1.4 

1.6

1.4

2.1 

2.7 

13 

34 

790 

13 

2.6 

3.4 

3.4

1.4

Aug.

2.6 

2.6 

2.7 

2.7 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

3.4

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4 

2.4

Mean

1.58 

1.43 

1.75

134

2.60 

5.02 

16.0 

447 

1,087 

600 

134 

3.43 

2.51

192

Sept.

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.6 

2.6 

2.7

2.7 

2.7 

2.7 

2.7 

2.7

Runoff In 

acre-feet

97 

85 

108

97,220

160 

279 

984 

36,600 

86,860 

35,730 

7,610 

150 

150

138,800
226 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

North Pork Willow Creek below Crane Valley Reservoir, Calif.

Location. Water-stage recorder, lat. 37°17', long. 119°32', in SE£ sec. 26, T. 7 S., R. 

22~E7, 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 1950.

Average discharge. 10 years, 25.3 second-feet.

Extremes.--Maximum discharge during year, 169 second-feet Jan. 11 (gage height, 3.19 

reet); minimum, 0.2 second-foot Jan. 6-10.

1940-50: Maximum discharge, 847 second-feet Feb. 11, 1941 (gage height, 5.85 feet); 

minimum, 0.1 second-foot Nov. 13-16, 1940.

Remarks. Records fair. Flow regulated by Crane Valley Reservoir (capacity, 45,000 acrereet) and diversion into Pacific Gas & Electric Co. conduit No. 3 near Crane Valley 

Reservoir (see following page). Water is diverted from South Fork Willow Creek into 

reservoir.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

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

Nov.

0.4 

.4 

.4 

.4 

.4

.4 

.5 

.5 

1.0 

1.1

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.6

Dec.

0.5 

.5 

.5 

.5 

.5

.5 

.6 

.6 

.5 

.6

.6 

.6 

.6 

.6 

.6

.6 

.7 

1:5 

1.0 

.6

.5 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.3 

.3

Jan.

O.3 

.3 

.3 

.3 

.3

.3 

.2 

.3 

.3

>. - 2

7.7 

.5 

.5 

.5

.5

.7 

2.2 

1.1 

1.0 

1.0

1.1 

.9 

1.2 

.9 

.7

.6 

.6 

1.4 

.9 

.8 

.7

Feb.

0.6 

.6 

.6 

3.0 

2.5

4.1 

1.5 

1.1 

.9 

1.0

.8 

.8 

.8 

.7 

.7

.6 

.6 

.6 

.6 

.5

-5 

.5 

.5 

.4 

.4

.4 

.4 

.4

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

Unv

June 

July 

Augu

Sept

Na

her. ....................................

mber. ........................--..-.-----

lendar year 1949 

ary .....

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

Mar.

O.4 

.4 

.4 

.4 

.4

.4 

. .4 

.4 

.4 

.4

.4 

.4 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.6 

.5 

1.9 

1.0

.7 

.6 

.6 

.5 

.5 

.5

Apr.'

0.5 

.5 

.5 

.5 

.5

.5 

.7 

1.7 

1.3 

1.0

.9 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

Secondfoot -day s

12.4 

15.6 

17.3

252.5

28.3 

26.1 

16.7 

24.8 

26.5 

36.2 

26.7 

23.3 

15.3

269.2

May

0.9 

1.0 

1.1 

1.0 

.9

.9 

.9 

1.0 

1.0 

.9

.8 

.8 

.8 

.8 

.9

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8 

.8

Maximum

0,4 

1.1 

1.5

3.6

7.7 

4.1 

1.9 

1.7 

1.1 

1.5 

1.5 

.8 

.7

7.7

June

0.8 

.8 

.8 

.8 

.9

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.0 

.8 

1.1 

1.5

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.3 

.9 

1.5

July

1.5 

1.4 

1.4 

1.4 

1.3

.7 

.7 

.7 

.7 

.8

.7 

.7 

.7 

.7 

.7

.8 

.8 

.8 

.8 

.8

.8 

.8 

.7 

.8 

.8

.8 

.8 

.8 

.8 

.7 

.S

Minimum

0.4 

.4 

.3

.3

.2 

.4 

.4 

.5 

.8 

.8 

.7 

.7 

.4

.2*

Aug.

0.8 

Jf .8

/ .8

" .8 

.7

.7 

.8 

.8 

.8 

.8

.8 

.8 

.7 

.7 

.8

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.8 

.8

.7 

.8 

.8 

.8

.7 

.7

Mean

0.40 

.52 

.56

.69

.91 

.93 

.54 

.83 

.85 

1.21 

.86 

.75 

.51

.74

Sept.

0.7 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.4

Runoff In 

acre-feet

25 

31 

34

503

56 

52 

33 

49 

53 

72 

53 

46 

30

534
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 227

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., R. 

2TTE7, 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 1950. 

Average discharge. 10 years, 58.5 second-feet.

Extremes. Maximum daily discharge during year, 156 second-feet Aug. 14; no flow June 6-11, 

15-27, June 30 to July 4.

1940-50: Maximum daily discharge, 164 second-feet Sept. 21, 1944; no flow at times 

during each year except 1945, 1946, 1948.

Remarks Records good. Conduit diverts from Crane Valley Reservoir in sec. 26, T. 73., 

RT"Z2 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 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.6 

6.5 

.6 

.6

.6 

6.5 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

18 

52 

.7

.7 

.7 

6.6 

.6 

.6

6.5 

.6 

.6 

.6 

6.5 

.6,

Nov.

0.5 

.5 

6.4 

.6 

.6

7.2 

.8 

.8 

6.7 

.5

.5 

.5 

.5 

7.4 

.5

.5 

.4 

7.7 

.5 

.5

.5 

6.7 

.4 

.4 

.4

"^ .4

7.8

.4 

.4 

.4

- Dec.

6.8 

.5 

.5 

.5 

6.8

52 

62 

30 

.6 

7.6

.6 

.6 

37 

22 

75

.3 

6.3 

.4 

.4 

2.7

4.0 

3.0 

1.8

.4 

.4

7.6 

.5 

.5 

6.9 

.5 

6.8

Jan.

0.3 

2.4 

24.0 

74 

42

39 

2.9 

3.1 

54 

84

31 

7.4 

26 

48 

85

106 

69 

24 

34 

65

1.7 

1.7 

20 

56 

65

81 

91 

.5 

7.6 

93 

112

Feb.

108 

112 

114 

29 

34

81 

96 

117 

127 

136

94 

40 

147 

147 

147

147 

147 

142 

109 

146

147 

148 

148 

148 

148

57 

147 

147

Month

Octo 

Move 

Deee

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Va

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

147 

147 

147 

147 

147

147 

147 

148 

148 

148

148 

148 

148 

150 

150

150 

150 

150 

145 

148

150 

150 

150 

149 

101

72 

119 

150 

150 

150 

150

Apr.

110 

107 

83 

151 

150

132 

92 

83 

.6 

80

113 

92 

90 

85 

31

1.3 

72 

73 

70 

70

67 

15 

50 

. 72 

76

79 

74 

87 

105 

72

Secondfoot-days

117.3 

61.4 

345.0

22,788.0

1,350.6 

3,310 

4,451 

2,382.9 

1,121.7 

31.3 

1,426.5 

3,988.5 

4,304.3

22,890.5

May

101 

116 

135 

142 

137

58 

.6 

131 

152 

84

.7 

7.7 

.5 

.6 

7.9

.7 

8.2 

.6 

.6 

7.8

.6 

.6 

6.9 

.6 

.6

11 

.6 

.7 

7.0 

.6 

.6

Maximum

52 

7.8 

75

153

112 

148 

150 

151 

152 

11 

146 

156 

154

156

June

11 

.7 

.7 

.7 

.4

0 

0 

0 

0 

0

0 

7.7 

.7 

.3 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

8.9 

.2 

0

. July

O 

0 

0 

0 

6.3

.3

.3 

.3

.3 

9.8

.4 

7.1 

.3 

.3 

6.2

.3 

.4 

6.4 

49 

139

137 

109 

.3 

126 

146

143 

143 

146 

117 

.5 

132

Minimal

0.6 

.4 

.3

.3

.3 

29 

72 

.6 

.5 

0 

0 

.4 

.3

0

Aug.

151 

153 

155 

155 

123

.6 

136 

155 

154 

153

153 

122 

73 

156 

153

149 

149 

151 

121 

.5

136 

151 

151 

151 

151

121 

.4 

115 

151 

149 

149

Mean

3.78 

2.05 

11.1

62.4

43.6 

118 

144 

79.4 

36.2 

1.04 

46.0 

- 129 

143

62.7

Sept.

151 

120 

.3 

142 

150

151 

154 

151 

151 

153

154 

154 

153 

152 

152

151 

121 

142 

147 

147

148 

151 

151

151 

152

151 

151 

151 

151 

151

Runoff In 

acre-feet

233 

122 

684

45,200

2,680 

6,570 

8,830 

4,730 

2,220 

62 

2,830 

7,910 

8,540

45,400
228 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Big Sandy Creek near Auberry, Calif.

Location.--Water-stage recorder, lat. 37°03'10", long. 119°32'30", In HE^NWi sec. 23, T. 10 

 S., K. 22 E., 1.8 miles upstream from mouth, 3 miles west of Prather, and 4 miles southwest of Auberry. Altitude of gage, about 1,240 feet (from topographic map).

Drainage area. 27.8 square miles.

Records available.--October 1946 to September 1950.

Extremes.--Maximum discharge during year, 660 second-feet Feb. 4 (gage height, 3.15 feet); 

no now during several months.

1946-50: Maximum discharge, 1,120 second-feet Apr. 10, 1948 (gage height, 3.49 

feet); no flow during several months each year.

Remarks. Records good except those for period of fragmentary or no gage-height record, 

which are poor. No storage or diversion above station.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Feb. 16 to Mar. 12)

1.1

1.2

1.3

1.4

1.5

.1

.4

1.0

4.2

1.6

1.7 

l.S

1.9

2.0

9.6

19

34

56

82

2.1

2.3

2.4

115

197

245

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

23 

29 

30 

31

Oct. Nov.

0

o 

o

0 

0

0

o 

o

.1

.2

.1 

O 

0

o

0

o 

o

0

o

.1

.1 

.1 .1 

.1 

.1

.1 .1 

.1 

.1 

.1

Dec.

0.1.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1

.1 .1 

.1 

.1 

.1

.1 

.1

.2 

.2

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Jan.

0.1 

.2 

.2

.1

.1

.1 

.1 

.3 

.3 

.2

2.8 

1.2 

.8 

32 

al.5

81.5 

f40 

11 

5.1 

3.3

2.6 

1.6 

2.5 

5.6 

2.2

1.0 

.9 

19 

13 

6.1 

4.2

Feb.

3.3 

2.6 

2.2 

127

131

239 

52 

24 

14 

12

12 

9.6 

8.3 

7.7 

7.2

6.1 

5.6 

5.1 

4.6 

4.6

3.7 

3.7 

3.3 

2.9 

2.9

2.6 

2.2 

2.2

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

ter year 1949-5O .......................

Mar.

2.6 

2.6 

2.9 

2.9 

2.9

2.2 

2.2 

2.6 

2.2

1.9

1.9 

1.9 

1.9 

1.9 

1.6

1.4 

1.6 

1.9 

1.9 

2.2

1.6 

1.6 

1.9 

31 

44

13 

8.9 

7.2 

6.6 

5.6 

4.6

Apr.

4.2 

3.7 

3.3 

3.3 

2.9

2.6 

2.9 

19 

39

15

9.6 

7.7 

6.6 

6.1 

5.6

4.6 

4.2 

3.3 

2.9 

2.2

1.9 

1.6 

1.6 

1.4 

1.0

.9 

.8 

.8 

.7 

.6

Secondfoot -days

0 

1.5 

3.3

988. 0

129.6 

701.4 

169.2 

160.0 

9.9 

0 

0 

0 

O

1,174.9

May

0.6 

.8 

1.9 

1.0 

.7

.6 

.6 

.5 

.4 

.4

.3 

.3 

.2 

.2 

.2

.1

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

O 

O 

0

o

Maximum

0 

.2 

.2

139

40 

239 

44 

39 

1.9 

0 

0 

0 

0

239

June July

Minimum

0 

0 

.1

0

.1 

2.2 

1.4 

.6 

0 

0 

0

6

0

0

Aug.

Mean

0 

.05

.11

2.71

4.18 

25.0 

5.46 

5.33 

.32 

O 

0 

0 

0

3.22

Sept.

Runoff In 

acre-feet

0 

3.0 

6.5

. 1,960

257 

1,390 

336 

317 

£0 

0 

0 

0 

0

2,330

Peak discharge J[base, 5OO sec.-ft.).--Feb. 4 (8:3O p.m.) 660 sec.-ft.

a Mo gage-height record; discharge computed on basis of records for stations on nearby streams.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
229

Pine Gold Creek near Priant, Calif.

Location. Water-stage recorder, lat. 37°04'00", long. 119°38'50", in NWtrNE£ sec. 14, T. 

TITS7, R. 21 E., 1,500 feet downstream from Willow Creek and 5.5 miles northeast of 

Priant. .Altitude of gage, about 620 feet (from topographic map).

Drainage area.--92.8 square miles.

Records available. October 1936 to September 1950.

Average discharge. 14 years, 40.3 second-feet.

Extremes. Maximum discharge during year, 726 second-feet Feb. 5 (gage height, 5.67 feet); 

no now Oct. 1 to Dec. 8, June 3 to Sept. 30.

1936-50: Maximum discharge, 10,300 second-feet Mar. 12, 1938 (gage height, 20.4 

feet, from floodmarks), from rating curve extended above 6,500 second-feet; no flow 

at times during each year.

Remarks.--Records fair. No storage or diversion above station. 

Revisions. W 1091: Drainage area.

Rating tables, water year 1949-50 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Jan. 17 to Feb. 6)

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

1.4

1.5

1.6

1.7 

1.9 

2.1

1.

3.

10

21

2.2 

2.4 

2.6 

2.8 

3.0 

3.2

28

45

65

36

109

133

3.4 163

3.7 218

4.0 283

4.4 377

1.5

1.6

1.7

1.8

1.9 

2.1

0.1

.5

1.8

4.0

6.6

14

2.3

2.4 

2.6 

2.8 

3.0 

3.2

26

34

52

73

96

122

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

33 

24

25

36 

27 

28 

39 

30 

31

Oct. Kov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

1.1 

2.S

2.6 

2.8 

2.8 

3.0 

3.3

3.3 

3.6 

5.5 

12 

7.0

3.8 

2.8 

2.3 

2.0 

1.8

1.6 

1.6 

1.6 

1.6 

1.6 

1.6

Jan.

1.6 

2.0 

2.3 

2.0 

1.6

1.6 

1.6 

4.0 

6.2 

4.3

8.4 

8.8 

6.2 

12 

10

8.8 

119 

72 

32 

25

20 

17 

17 

27 

15

10 

8.8 

45 

49 

26 

17

Feb.

14 

12 

10 

92 

362

358 

120 

66 

50 

48

45 

32 

26 

23 

21

18 

16 

15 

14 

13

13 

12 

11 

10 

9.8

9.4 

8.6 

8.6

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

nbsr. ........ . - - --------------------

lender year 1949

ter year 1949-50 .......................

Mar.

8.6 

8.2 

7.8 

7.5 

7.2

6.9 

6.6 

6.6 

6.3 

6.0

6.0 

6.0 

5.7 

5.5 

5.5

5.5 

5.7 

6.3 

6.0 

6.9

6.3 

5.7 

6.0 

46 

86

37 

24 

18 

15 

13 

11

Apr.

11 

9.8 

9.0 

8.2 

7.5

7.2 

7.5 

39 

100 

54

32 

25 

21 

18 

15

14 

13 

12 

11 

9.4

8.6 

8.2 

7.5 

7.2 

6.9

6.3 

6.0 

5.7 

5.5 

5.0

Secondfoot-days

0 

0 

72.1

2,843.7

581.3 

1,437.4 

398.8 

490.5 

85.0 

.2 

0 

0 

0

3,065.2

May

5.0 

5.5 

6.3 

6.6 

5.5

5.0 

4.7 

4.5 

4.0 

3.5

3.2 

3.2 

2.8 

2.8 

2.6

2.4 

2.2 

2.0 

1.8 

1.8

1.4 

1.2 

1.1 

1.1 

1.1

1.1 

.9 

.6 

.5 

.4 

.8

Maximum

0 

0 

12

495

119 

362 

86 

100 

6.6 

vl 

0 

0 

0

363 -

June

0.1 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

MinlnuB

0 

0 

0

0

1.6 

8.6 

5.5 

5.0 

.2 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

2.33

7.79

18.7 

51.3 

12.9 

16.4 

2.74 

.01 

0 

0 

0

8.40

Sept.

Runoff in 

acre-feet

0 

0 

143

5,640

1,150 

2,850 

791 

973 

169 

.4 

0 

0 

0

6,080

peak discharge Cbaae, 500 sec.-ft. ) . Feb. 5 (2 a.m.) 726 see.-ft. 

207481 O - 52 - 16
230 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Friant-Kern Canal at Friant, Calif.

Location. Water-stage recorder, lat. 36°59'43", long. 119°42'17", In w£ sec. 8, T. 11 

S., R. 21 E., 0.25 mile southwest of Frlant-Dam and 0.5 mile northeast of town of 

Friant. Altitude of gage, about 460 feet (from topographic map).

Records available. March 1949 to September 1950.

Extremes. Maximum dally discharge during year, 1,169 second-feet June 29; no flow during 

several months. <

1949-50: Maximum daily discharge, that of June 29, 1950; no flow during several 

months in each year.

Remarks.--Canal diverts from left bank of San Joaquln River at Friant Dam for irrigation 

in upper San Joaquin Valley.

Cooperation. Records of daily discharge and runoff in acre-feet furnished by Bureau of 

Reclamation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

1O

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

'

Nov. Dec. Jan. Feb.

\

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 

ary

ter year 1949-So .......................

Mar.

O 

0 

0 

0 

O

0 

0 

0 

O 

O

0 

0 

O 

126

411

496 

478 

456 

438 

428

428 

430 

430 

4SO 

432

436 

440 

442 

442 

456 

480

Apr.

484 

488 

483 

451 

440

432 

433 

443 

453 

437

349 

344 

347 

342 

330

332 

335 

337 

34O 

345

341 

316 

320 

325 

329

333 

338 

342 

345 

348

Secondfoot-days

O 

0

O

-

0 

0 

7,679 

11,282 

8,957 

26,659 

22,982 

20,940 

40

98,539

May

349 

351 

273 

133 

121

93 

93 

93

94 

94

94 

119 

151 

152 

153

181 

306 

390 

383 

387

391 

395 

399 

412 

468

472 

476 

481 

485 

489 

479

Maximum

O 

0 

0

-

O 

0 

496 

488 

489 

1,169 

1,112 

904 

40

1,169

June

474 

478 

482 

486 

488

491 

499 

573 

844 

906

929 

941 

938 

947 

958

969 

978 

975 

987

994

1,059 

1,149 

1,145 

1,142

1,137

1,131 

1,124 

1,147 

1,169 

1,119

July

1,112 

1,105 

1,076 

939 

967

984 

976 

969 

955 

778

534 

530 

527 

533 

555

550 

544 

580 

645 

637

642 

642 

634 

661 

697

695 

692 

7OO 

707 

706 

710

Minimum

O 

O 

0

-

0 

0

o 

516 

93 

474 

527 

162 

0

O

Aug.

715 

721 

725 

736 

740

747 

726 

698 

696 

698

711 

739 

734 

726 

723

739 

755 

769 

748 

739

784 

904 

719 

538 

522

534 

568 

614 

644 

366 

162

Mean

0 

0 

O

-

O 

0 

248 

376 

289 

889 

741 

675 

1.3

270

Sept.

40 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

0

o

0 

0 

0 

0 

0

o

0 

0 

0

o

Runoff in 

acre-feet

0 

O 

0

-

0 

O 

15,231 

22,378 

17,766 

52,877 

45,584 

41,534 

79

195,449
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 231 

Madera Canal near Friant, Calif.

Location. Water-stage recorder, lat. 36°59'45", long. 119°47'55", inNW^sec. 9, T. 11 

s., R. 20 E., 8.8 miles downstream from intake and 5 miles west of Friant. Altitude 

of gage, about 415 feet.

Records available. October 1943 to September 1950.

Extremes. Maximum daily discharge during year, 789 second-feet Sept. 7; no flow during 

several months.

1943-50: Maximum daily discharge, that of Sept. 7, 1950; no flow during several 

months in each year.

Remarks.--Canal diverts from right bank of San Joaquin River at Friant Dam. No diversions 

aoove station. It is a part of Central-Valley project and supplies water for irrigation 

between San Joaquin and Fresno Rivers. No diversion above station.

Cooperation. Records of daily discharge and runoff in acre-feet furnished by Bureau of 

Reclamation.

Revisions (water years ). W 1151: 1944-48.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

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

Goto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 194S

h. ......................................

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

ter year 1949-50 .......................

Mar.

0 

0 

O 

O 

0

0 

0 

O 

0 

O

O 

0 

0 

0 

0

0 

0

o 

o 

o

0

o 

o

0

o

0 

0 

0 

0 

16 

80

Apr.

104 

106 

119 

136 

198

243 

233 

173 

78 

2

0 

0 

0 

0 

0

O 

0 

0 

0 

0

0 

0

o 

o

0 

0

o

0

o

138

Secondfoot-days

0 

O 

0

76,385

0 

O 

96 

1,580 

6,196 

12,009 

18,475 

12,759 

8,538

59,653

May

145 

147 

161 

214 

215

216 

215 

215 

186 

200

200 

201 

202 

203 

205

206 

207 

210 

213 

216

219 

210 

176 

177 

187

212 

217 

221 

224 

219 

157

Maximum

0 

O 

O

768

O 

0 

80 

243 

224 

566 

687 

763 

789

789

June

160 

161 

162 

162 

173

191 

235 

236 

236 

237

235 

234 

353 

542 

540

532 

501 

497 

504 

523

562 

562 

559 

558 

552

549 

556 

566 

565 

566

July

566 

578 

612 

648 

647

644 

666 

687 

681 

675

650 

623 

615 

612 

606

603 

594 

626 

654 

634

554 

551 

547 

541 

540

535 

528 

521 

514 

512 

511

Minimum

0 

0 

0

0

0 

0 

0 

O 

145 

160 

511 

233 

O

O

Aug.

523 

534 

527 

537 

548

559 

569 

556 

551 

552

554 

560 

553 

554 

396

245 

233 

234 

234 

235

236 

234 

235 

237 

235

234 

237 

254 

312 

528 

763

Mean

0 

0 

0

209

0 

0 

3.1 

52.7 

200 

400 

596 

412 

SS5

163

Sept .

727 

687 

723 

719 

698

747 

789 

651 

554 

485

399 

340 

287 

244 

207

152 

83 

33 

13 

0

0 

O 

O 

0 

0

0 

0 

0 

0 

0

Runoff in 

acre-feet

0 

0 

0

151,500

0 

0 

190 

3,134 

12,290 

23,820 

36,645 

25,307 

16,935

118,321
232 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESHO RIVER 

Cottonwood Creek near Friant, Calif.

Location. Water-stage recorder, lat. 37°00'05", long. 119°43'10", in SE£ sec. 6, T. 11 

s., it. 21 E., 1 mile upstream from mouth and 1 mile northwest of Priant. Altitude of 

gage, about 355 feet (from topographic map).

Drainage area. 38 square miles.

Records available. October 1941 to September 1950.

Extremes. Maximum discharge during year, 112 second-feet Feb. 4 (gage height, 2.56 feet); 

no now for several months.

1941-50: Maximum discharge, 569 second-feet Jan. 22, 1943 (gage height, 3.89 feet); 

no flow for several months each year.

Remarks. Records good below 100 second-feet, fair above. No diversion above station. 

Creek is tributary to San Joaquln River between Priant Dam and gaging station downstream .

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Feb. 6-10, Apr. 10-24)

.1

.4

1.4

0.9 3.1

1.0 5.5

1.2 12

1.4 IB

1.6 26

1.8 37

1.9 43

Discharge, to second-feet, water year October 1949 to September 1950

Day

i

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. Dee.

0 

0 

0

o 

o

0

o 

o 

o

0

o

0 

0 

0 

0

0

o

.2

.1

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0

o

0

.1

0 

0 

.2

o

0 

.9

.1 

o

0

o

0 

.4

.1

0

0 

0 

2.7 

2.2 

1.6 

1.0

Feb.

0.6 

.4 

.4 

20 

27

3B 

18 

14 

12 

16

11 

7.9 

6.7 

6.1 

5.8

5.2 

4.4 

4.0 

3.5 

3.3

3.1 

2.9 

2.7 

2.0 

2.0

1.7 

1.7 

1.9

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! a*y.

June 

July 

Augu 

Sept

Ha

nber. ...........------------ - - - -

lendar year 1949 

ary.

raber. ............. .^ ...................

ter year 1949-50 .......................

Peak discharge (baae. 5 Bee. -ft.).

ft.; Feb. 10 (5 p.m.J 18 sec. -ft.; H

Mar.

1.9 

1.7 

1.6 

1.3 

1.3

1.1 

1.0 

1.1 

1.1 

.9

.9 

.9 

.7 

.7 

.6

.5

.6 

.8 

.7 

.6

.5 

.4 

.4 

21 

IB

7.9 

4.0 

2.9 

' 2.2 

1.9 

1.4

Apr.

1.2 

1.0

.e

' .6 

.5

.4 

.4 

8.1 

26 

7.9

3.7 

2.2 

1.6 

1.0 

.7

.6 

.4 

.2 

.1 

.1

.1 

.1 

.1 

0 

0

0 

O 

0 

0 

O

Secondfoot -days

0 

0 

.3

15.4

9.3 

222.3 

BO. 6 

57.8 

0 

0 

0 

0 

0

370.3

nay

Maxlttum

O 

0 

.2

3.0

2.7 

38 

21 

26 

0 

0 

0 

0 

0

38

June July

Minima

0 

0 

0

0

0 

.4 

.4 

0 

0 

0' 0 

0 

0

0

Aug.

Mean

0 

0 

.01

.04

.30 

7.94 

2.60 

1.93 

0 

0 

0 

0 

0

1.01

Sept.

Runoff in 

ae re-feet

0 

0 

.6

30

18 

441 

160 

115 

0 

0 

0 

0 

0

735

--Jan. 2S (3:30 p.m.) 5.8 see.-ft.;i?eb. 4 (6:45 p.m.) 112 aec.- 

ar. 24 (S p.m.) 56 sec. -ft.; Apr. 9 (7:30 a.m.) 39 sec. -ft.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESHO RIVER 233

Little Dry Creek near Friant, Calif.

Location. Water-stage recorder, lat. 36°56'25", long. 119°40'55", in SE£ sec. 28, T. 11 

s., K. 21 E., 3.5 miles southeast of Friant and 4 miles upstream from mouth. 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 1950.

Extremes. Maximum discharge during year, 306 second-feet Feb. 4 (gage height, 3 37 feet); 

no now for several months.

 1941-50: Maximum discharge, 1,530 second-feet Feb. 1, 1945 (gage height, 4.58 feet), 

from rating curve extended above 360 second-feet by logarithmic plotting; no flow for 

several months each year.

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

Rating table, water year 1949-5O (gage height, in feet,

and discharge, In second-feet) 

(Shifting-control method used Mar. 4 to Apr. 8)

1.0 o

1.1 .1

1.2 .4

1.3 .9

1.4 1.8

1.5 3.2

1.6 5.2

1.7 9.5

1.9 

2.1 

2.4 

2.6

24

46

93

130

Discharge, in aeoond-feet, water year October 1949 to September 195O

Day

1 

2 

3

4 

5

6 

7 

8 

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.

O 

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

0

o 

o

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o

2.6 

d6.1 

d2.5 

1.4

Month

Octo 

Hove 

Decei

Ca

Janu 

Febr 

Hare 

Apr! 

Mar

June 

July 

Augu 

Sept

Ha

Feb.

1.1 

.8 

.S 

38 

104

114 

40 

22 

15 

13

11 

8.2 

6.1 

5.0 

4.6

4.2 

3.6 

3.4 

3.1 

2.9

2.9 

2.6 

2.4 

2.2

2.2

2.1 

1.9 

1.8

mtM»T>. . , , . . . , . , . ,

 ber. ...........--....-----..--.--......

lendar year 1949

ter year 1949-50 .......................

Mar.

1.8 

1.7 

1.7 

1.5 

1.4

1.4 

1.3 

1.3 

1.3 

1.1

1.0 

.9 

.9 

.8 

.8

.8 

.8 

.8

.9 

.9

.8 

.8 

.8 

8.9 

27

8.6 

4.8 

3.6 

2.9 

2.5 

2.1

Apr.

l.S 

1.6 

1.4 

1.3 

1.2

.9 

.9 

1.8 

5.2 

3.6

2.2 

l.S 

1.6 

1.3 

1.0

.8 

.8 

.7 

.5 

.4

.3 

.2 

.1 

.1 

.1

0 

0 

.1 

.1 

.1

Secondfoot-days

0

0 

O

217.7

12.6 

418.9 

85.9 

31.9 

.4 

0 

0 

0 

0

549.7

Nay

0.1

.1 

.1 

.1

0

0 

0 

0 

0

o

0

o

0 

0 

0

0 

0 

0 

0 

0

0

o 

o

0 

0

0 

0 

0 

0

o 

o

MaxlBum

O 

0 

0

30

6.1 

114 

27 

5.2 

.1 

0 

0 

0 

0

114

June July

Minima

0 

0 

0

0

0

o'

0 

0 

0 

0 

0

3

0

Aug.

Mean

0 

0 

0

.60

.41 

15.0 

2.77 1.06" 

.01 

. 0 

0 

O 

0

1.51

Sept.

Runoff in 

acre -feet

0 

0 

0

433

25 

831 

170 

63 

.8 

0 

0 

0 

0

1,090

Peakdii 

d DOUbt!

laeharge (base. 60 aec.-ft.).--Peb. 4 (11 p.n.) 306 see.-ft. 

nil gage-height record; discharge computed on basis of partly estimated gage heights.
234 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESHO RIVER

James bypass near San Joaquin, Calif.

Location. Water-stage recorder, lat. 36°39', long. 120°11', in Sw£ sec. 1, T. 15 S., R. 

16 E., 3.1 miles north of San Joaquin. Altitude of gage, 165 feet.

Records available. October 1947 to September 1950. April 1929 to September 1948 in 

rues or Rings River Water Association.

Extremes. Maximum discharge during year, 283 second-feet May 23 (gage height, 5.72 feet); 

no now for several months.

Maximum flow since April 1929, 4,780 second-feet May 19, 1938, from records of Kings 

River Water Association. Other flood peak discharges from records of same organization, 3,280 second-feet Feb. 6, 1945, 3,070 second-feet Dec. 15, 1937.

Remarks. Records good. Diversions above station for irrigation. James bypass carries 

overflow from Kings River to San Joaquin River.

Cooperation. Seven discharge measurements furnished by Bureau of Reclamation, and one 

Dy Rings River Water Association.

Discharge, in second-feet, water year October 1949 to September 1950

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. Dec. Jan. Feb.

Month

Ooto 

Hove

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

Mav

June 

July 

Augu 

Sept

wa

her. ....................................

raber. ...................................

lendar year 194E 

ai*y

.......................

ter year 1949-5O .......................

Mar. Apr.

Secondfoot -day 8

0 

0 

0

224.6

0 

0 

0 

0 

932 

S5.3 

0 

[ 0 

0

1,017.3

Hay

C 

C 

c 

C 

C

C 

C

0

c 

c

c 

a 

a

0 

0

0 

0 

0 

0 

0

o

228 

237 

95 

96

41 

49 

75 

46 

52 

13

Maximum

0 

0 

0

92

0 

0 

0 

0 

237 

34 

0 

0 

0

237

June

1.2 

0 

34 

18 

3.6

.2 

7.6 

9.7 

8.9 

2.0

.1 

0 

0 

0 

0

O 

0 

0 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

O 

0 

0

0

0 

0 

O 

0 

O 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.62

0 

0 

0 

0 

30.1 

2.84 

0 

0 

O

2.79

Sept. .

Runoff in 

acre -feet

0 

0 

0

445

0 

0 

0 

0 

1,850 

169 

0 

0 

0

2,020
SAN JOAQUIW RIVER TRIBUTARIES ABOVE PRESMO RIVER 235

Panoche Creek below Silver Creek, near Panoche, Calif.

Location. Water-stage recorder, lat. 36"37' 10", long. 120"40"25", in SW£ sec. 16, T. 15 

s., K. 12 E., 1.1 miles downstream from Silver Creek, 9 miles east of Panqche, and 18 

miles southwest of Mendota. Datum of gage is 558.26 feet above mean sea level, datum 

of 1929.

Records available. October 1949 to September 1950.

Extremes. Maximum discharge during year, 2,510 second-feet Sept. 18 (gage height, 6.25 

TeeT7 from floodmarks), from rating curve extended above 5 second-feet on basis of 

slope-area measurement; no flow for several months.

Remarks. Records good except those for Oct. 1 to Dec. 4, Sept. 18-30, which are poor.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Mar. 24, 25, Apr. S, 9)

0.8 0.04 1.3 4.0 1.8 25 

.9 .3 1.4 5.5 1.9 40 

1.0 .7 1.5 7.3 2.1 SO 

1.1 1.5 1.6 10 2.3 135 

1.2 2.6 1.7 15 2.4 165

Discharge, In second- feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Nov.

. 0.1

Dec.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.1

.1 

.1 

.1

a

.2

.1 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1 

.1

Jan.

0.1

.1 

.1 

.1 

.1

.1 

.1

.2 

.2 

.2

.2 

.3 

.4. 

.5 

.3

.5

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.3 

.3 

.6 

.6 

.6 

.5

Feb.

O.4 

.4 

.5 

.5 

.6

.6 

.6 

.6 

.5 

.S

.7 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.5 

.5

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 194£

ter year 1949-50 .......................

Mar.

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

3.0 

6.8

2.9 

1.2 

.S 

.6 

.6 

.5

Apr.

0.5 

.4 

.3 

.3 

.3

.3 

.3 

2.4 

5.4 

3.7

1.8 

.8 

.6 

.4 

.3

.3 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Secondfoot -days

o

3.0 

4.1

-

10.0 

16.3 

27.9 

19.9 

3.0 

1.3 

0 

0 

176.6

262.1

Hay

CT.l 

.1 

.2 

.2

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

0 

0 

0

Maximum

0 

.2

-

.6 

.8 

6.S 

5.4 

.2 

.1 

0 

0 

160

160

June

o

0 

0 

0 

0

0

.1 

.1 

.1 

.1

.1 

.1 

.1 .1 

.1

.1 

.1 .1 

.1

0

0 

0 

0 

0

0

o

0 

0

o 

o

July

MlnlBUB

0

.1

-

.1

.4 

.5 

.1 

0 

0 

O 

0 

0

o

Aug. Sept.

O 

0

o

0 

0

0 

0 

0

.1 

.1

0 

0

.1 

.1 .1

.1

.2

160 

5 - 3

2

1 

.9 

.8 

.7

.6 

.5 

.5 

.4 

.4

,,___ Runoff In "* acre-feet

0 0 

.10 6.0 

.13 8.1

-

.32 20 

.58 32 

.95 55 

.66 39 

.10 6.0 

.04 2.6 

0 0 

0 0 

5.89 350

.72 519

Note.--Ho gage-height record Oct. 1 to Dec. 4, Sept. 19-30; discharge computed on basis of ralnfall records.
236 LOS BANDS CREEK BASIN 

San Luis Creek near Los Banos, Calif.

Locj* tip"---Water-stage recorder » lat. 37°03'55", long. 121 004'15", in San Luis Gonzaga 

Graw, 300 feet downstream from Cottonwood Creek, and 11.5 miles west of Los Banos 

Altitude of gage, about 231 feet (from topographic map).

Records available. October 1949 to September 1950.

Extremes. no flow during year.

Remarks7 No storage or large diversion.

ERESNO RIVER BASIN

Fresno Rivar near Knowles, Calif.

/ 

Location. Water-stage recorder and concrete control, lat. 37°14', long. 119°46', in NW$ 

 sec. 15, T. 83., 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 1950.

Average discharge. 35 years (1911-12, 1916-50), 78.5 second-feet.

Extremes. Maximum discharge during year, 1,030 second-feet Feb. 6 (gage height, 3.25 

feet); no flow Aug. 18 to Sept. 12.

1911-13, 1915-50r Maximum discharge, 7,630 second-feet Mar 12, 1938 (gage height, 

8.67 feet); no flow at times in 1919, 1924, 1926, 1928-31, 1933-34, 1947, 1948, 1950.

Remarks. Records good. Water diverted into Presno River Basin above station from San 

Joaquin and Merced River Basins. Small diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.3 

2.1 

2.3 

2.1 

2.1

2.1 

2.1 

2.3 

1.9 

2.6

2.8

3.3 

3.6 

3.3 

3.3

3.3 

3.3 

2.8 

3.0 

3.9

4.2 

4.5 

4.2 

3.6 

3.6

3.3 

3.3 

3.0 

3.0 

3.0 

3.0

Nov.

3.0 

2.8 

2.3 

2.8 

2.S

2.6 

2.6 

2.8 

3.9 

47

32 

15 

10 

8.8 

8.0

7.6 

7.2 

6.8 

6.4 

6.4

6.4 

6.0 

5.1 

4.8 

4.5

4.8 

4.2 

4.2 

4.5 

4.5

Dec.

4.5 

4.5 

4.2 

4.5 

4.2

4.2 

4.5 

4.8 

5.7 

5.4

5.1 

4.2 

4.2 

5.4 

5.1

5.4 

5.4 

10 

26 

19

14 

11 

12 

11 

11

9.6 

9.6 

9.6 

9.2 

9.6 

8.8

Jan.

9.6 

10 

6.8 

7.6 

9.2

8.8 

9.6 

14 

17 

14

19 

18 

15 

18 

13

19 

117 

137 

77 

66

61 

58 

53 

99 

53

32 

29 

59 

72 

47 

33

Feb.

27 

25 

26 

137 

495

649 

239 

157 

113 

95

110 

80 

69 

61 

58

53 

51 

49 

49 

47

47 

47 

43 

43 

43

45 

43 

45

Month

Goto 

Hovei 

Dece

Ca

Janui 

Febn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1945 

ary

ter year 1949-50 .......................

Mar.

49 

47 

45 

43 

43

41 

39 

37 

35 

33

33 

35 

32 

30 

32

32 

35 

41 

41 

51

41 

49 

66 

131 

191

110 

87 

80 

84 

84 

87

Apr.

Secondfoot -days

93.2 

230.3 

251.7

15,450.6

1,201.6 

2,996 

1,784 

3,030 

3,674 

1,717 

353.6 

15.1 

22.9

15,369.4

91 

91 

87 

SO 

69

66 

72 

191 

203 

141

137 

133 

133 

125 

110

106 

102 

98 

91 

77

80 

77 

75 

72 

72

77 

77 

66 

110 

121

May

117 

125 

125 

117 

113

113 

113 

110 

91 

98

106 

110 

110 

117 

125

129 

133 

133 

129 

125

125 

125 

133 

125 

117

117 

121 

121 

121 

117 

113

Maximum

4.5 

47 

26

678

137 

649 

191 

203 

133 

113 

25 

2.6 

2.6

649

June

113 

110 

102 

9S 

95

91 

34 

80 

72 

66

61 

64 

58 

53 

49

47 

47 

45 

45 

41

33 

33 

33 

33 

32

29 

27 

26 

25 

25

July

Minimum

1.9 

2.6 

4.2

.5

6.8 

25 

30 

66 

91 

25 

2.8 

0 

0

0

25 

22 

22 

19 

18

18 

17 

16 

14 

13

15 

16 

14 

12 

12

10 

9.2 

9.2 

9.6 

9.2

8.8 

7.6 

6.0 

5.7 

4.8

4.2 

3.9 

3.6 

3.0 

3.0 

2.8

Aug.

2.6 

2.5 

2.3 

1.9 

1.6

.8

.6 

.7 

.6 

.3

.2 

.1 

.1 

.2 

.3

.2 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

3.01 

7. 63 

8.12

42.3

38.8 

107 

57.5 

101 

119 

57. 2 

11.4 

.49 

.76

42.1

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.6 

1.0 

1.2

1.2 

1.2 

1.4 

2.4 

2.6

2.1 

1.7 

1.2 

1.1 

1.0

.8 

.8 

.8 

.8 

1.0

Runoff In 

acre -feet

185 

45.7 

499

30,650

2,380 

5,940 

3,540 

6,010 

7,290 

3,410 

701 

30 

45

30,490

Peak discharge (base. 590 see. -ft.). Feb. 6 (isSO p,m,) 1,030 aeo.-ft.
PRESNO RIVER BASIN 237

Fresno River near Daulton, Calif.

Location. Water-stage recorder, lat. 37°06', long. 119°53', in NW^ sec. 3, T. 10 S., R. 

. is E., 0.5 mile downstream from Willow Greek 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 1950.

Extremes. Maximum discharge during year, 1,180 second-feet Feb. 6 (gage height, 4.82 

reet); no flow Oct. 1-12, Aug. 21 to Sept. 30.

1944-50: Maximum discharge, 8,090 second-feet Feb. 2, 1945 (gage height, 7.10 feet); 

no flow at times in 1945, 1947-50.

Remarks.--Records fair. Water is diverted into Presno River above station from San Joaquln 

ana Merced River Basins. Small diversions above station for irrigation. Some regulation at low flow by mining operations above station.

Cooperation. Thirteen discharge measurements furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1949 to September 1950

Bay

1 

2 

3

4

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

2.0 

2.0 

2.0

1.5 

1.7 

1.7 

1.5 

1.5

1.7 

2.7 

3.3 

3.0 

2.7

. 2.5 

2.5 

2.2 

2.5 

2.2 

2.2

Hov.

2.2 

2.0 

2.0 

1.7 

1.7

1.5 

2.0 

2.0 

2.7 

18

62 

25 

15 

11 

9.0

8.0 

7.6 

6.9 

S.5 

6.2

6.2 

6.2 

4.0 

5.6 

6.5

5.8 

6.2

6.2 

6.2 

6.2

Dec.

6.2 

6.2 

5.S 

5.4 

5.0i

5.0 

5.8 

7.3 

8.0 

10

7.6 

6.9 

5.S 

5.0 

6.9

6.9 

7.6 

12 

32 

32

20 

14 

12 

12 

11

10 

10 

10 

9.5 

9.5 

9.5

Month

Octo 

Hdv* 

Dace

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ma

Jan.

9.5 

10 

11 

6.9 

7.6

9.0 

S.5 

14 

20 

17

20 

28 

24 

32 

32

23 

101 

192 

113 

84

75 

71 

65 

95 

84

48 

35 

62 

118 

80 

59

Feb.

47 

37 

33 

57 

729

807 

518 

237 

170 

154

150 

132 

113 

101 

92

36 

80 

75 

69 

67

62 

57 

52 

51 

50

54

55 

55

 ber. ...................................

lendar year 1949

ter year 1949-50 .......................

Mar.

55 

53 

43 

48 

43

43 

45 

44 

41 

39

37 

38 

34 

33 

32

30 

32 

35 

37 

48

52 

42 

72 

93 

296

184 

136 

109 

98 

98 

97

Apr.

97 

96 

95 

89 

86

75 

77 

130 

290 

210

178 

163 

150 

142 

126

116 

108 

102 

96 

84

79 

77 

75 

74 

73

73 

83 

66 

83 

124

ftooondKot-days

41.4 

252.1 

314.9

17,740".!

1,554.5 

4,190 

2,105 

3,322 

3,565 

1,616 

277.2 

19.5 

0

17,257.6

nay

126 

132 

137 

134 

124

122 

115 

109 

104 

100

101 

102 

104 

105 

109

112 

115 

113 

112 

115

119 

119 

122 

126 

124

116 

116 

113 

109 

106 

104

Maxima

3.3 

62 

32

942

192 

807 

296 

290 

137 

100 

18 

2.7 

0 .

807

June

100 

93 

96 

93

S3

86 

80 

77 

68 

62

57 

55. 

53 

51 

48

45

43 

42 

41 

39

39 

35 

33 

32

30

28

26 

25 

25 

21

Minima

July

14

18 

IS 

17 

15

14 

14

12 

12 

12

12 

12 

11 

9.5 

8.0

7.3 

6.5 

5.4 

6.2 

6.5

6.5 

6.2 

5.8 

5.4 

3.8

3.S 

3.3 

3.3 

3.0 

3.0 

2.7

0 

1.5. 

5.0

0

6.9 

33

30 

66 

100 

21 

2.7 

0 

0

0

Aug.

2.5 

2.7 

2.5 

2.5 

2.2

2.0 

1.5 

1.1 

.7 

.4

.3 

.1 

.1 

.1 

.1

.3 

.1 

.1 

.1 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

1.34 

8.40 

10.2

46.6

50.1 

150 

67.9 

111 

115 

53.9 

8.94 

.63 

0

47.3

Sept.

Runoff In 

acre -feet

82 

500 

625

35,190

3,080 

8,310 

4,180 

6,590 

7,070 

3,210 

550 

39 

0

34,240

Peat discharge (base. 500 sec.-ft.). Feb. 6 (9:30 p.m.) 1,180 sea.-ft.
238 TRIBUTARIES AND DIVERSIONS BETWEEN ERESNO RIVER AND MERCED RIVER

Chowchilla River at Buchanan dam site, Calif.

Location. Water-stage recorder, lat. 37° 13', long 120°00', in SWi sec. 22,T. 8 S., R. 

IB~ET, 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 1950.

Average discharge. 20 years (1930-50), 102 second-feet.

Extremes. Maximum discharge during year, 4,250 second-feet Feb. 4 (gage height, 9.05 

TeeTT; no flow Oct. 1 to Nov. 28, July 15 to Sept. 30.

1921-23, 1930-50: Maximum discharge, 18,900 second-feet Mar. 2, 1938 (gage height, 

14.4 feet, from floodraarks), 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. 

Revisions (water years). W 931: 1932(P), 1936-38(P).

Discharge, in second-feet, water year October 1949 to September 1950

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. Nov.

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 

1.6 

1.3

Dec.

1.7 

1.7 

l.S 

1.7 

l.S

1.8 

2.5 

3.2 

3.4 

4.0

4.2 

3.3 

3.5 

3.3 

3.4

3.S 

4.4 

6.4 

31 

33

19 

12 

9.5 

9.1 

8.3

7.0 

7.2 

6.7 

6.5 

6.2 

6.0

Jan.

6.2 

6.9 

7.6 

7.0 

6.2

5.6 

5.S 

9.3 

16 

16

19 

26 

20 

22 

32

20 

499 

362 

149 

115

95 

91 

77 

103 

72

51 

!9 

82 

16S 

96 

66

Feb.

51 

44 

39 

518 

1,500

1,720 

5SO 

272 

181 

155

158 

115 

97 

S6 

7S

72 

66 

62 

58 

55

52 

46 

47 

45 

44

43 

42 

39

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

Hftv

June 

July 

Augu 

Sept

Wa

tuber . .

lendar year 1949

ter year 1949-50 .......................

Peak discharge (base, 770 eeOj-ft.). Jan.

Mar.

38 

37 

36 

35 

34

33 

33 

32 

31 

29

30 

31 

28 

2S 

27

24 

26 

30 

30 

35

37 

31 

30 

43 

355

158 

102 

7S 

67 

62 

58

Apr.

53 

49 

44 

44 

40

36 

40 

150 

520 

280

168 

133 

111 

110 

92

83 

76 

70 

64 

5S

52 

49 

42 

42 

40

39 

36 

34 

34 

33

SecondfooAiays

0 

2.9 

217.4

11,333. 2

2,290.6 

6,265 

1,648 

2,622 

664.2 

79.6 

1.5 

0 

0

13,791.2

May

32 

35 

45 

53 

42

37 

34 

32 

30 

27

26 

24 

22 

£2 

20

IS 

18 

16 

15 

14

14 

12 

11 

9.6 

5.6

11 

10 

9.9 

8.9 

7.0 

3.2

Maximum

0 

1.6 

33

1,760

499 

1,720 

355 

520 

53 

6.0 

.2 

0 

0

1,720

June

1.2 

3.4 

5.6 

5.0 

4.8

4.7 

3.8 

3.9 

4.2 

3.S

1.3 

4.6 

6.0 

1.5 

1.1

1.5 

3.0 

3.2 

2.6 

2.3

2.6 

1.4 

1.1 

.S 

1.0

3.1 

.8 

.6 

.4

.3

July

0.2

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Minimum

0 

0 

1.7

0

5.6 

39 

24 

33 

3.2 

.3 

0 

0 

0

0

Aug.

Mean

0 

.10 

7.01

31.1

73.9 

224 

53.2 

S7.4 

21.4 

2.65 

.05 

0 

0

37.8

Sept.

Runoff In 

acre-feet

0 

5.8 

431

22,490

4,540 

12,430 

3,270 

5,200 

1,320 

158 

3.0 

0 

0

27,360

17 (4 p.m.) 1,320 sec. -ft. ] Feb. 4 (12 p.m.) 4,250 see.
TRIBUTARIES AND DIVERSIONS BETWEEN FRESNO RIVER AND MERCED RIVER 239

Salt Slough near Los Banos, Calif.

Location.--Water-stage recorder, lat. 37°09'35", long. 120°48 I 45", In Sanjon de Santa Rita 

(irant at San Luls Ranch, 7 miles north of Los Banos, Merced County. Altitude of gage, 

about 80 feet (from topographic map).

Records available. December 1940 to September 1950.

Extremes.--Maximum discharge during year, 418 second-feet Sept. 21 (gage height, 5.66 feet); 

minimum, 8.5 second-feet Sept. 8.

1944-50: Maximum discharge, 1,200 second-feet May 18, 1945 (gage height, 8.32 feet); 

minimum, that of Sept. 8, 1950.

Remarks. Records fair. Flow regulated by irrigation operations above station. Salt 

STough is a continuation of Pick Anderson Slough system.

Cooperation. Twelve discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

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.

24 

23 

21 

23 

25

22 

21 

19 

19 

18

17 

17 

17 

17 

15

15 

15 

17 

17 

17

15 

14 

14 

15 

15

14 

13 

13 

13 

13 

15

Nov.

17 

15 

14 

14 

13

13 

16 

18 

21 

21

21 

22

21

21 

55

41 

37 

36 

33 

31

30 

31 

29 

29

31

31 

29 

27 

27 

. 27

Dec.

33

31 

31 

31 

32

35 

36 

39 

41 

40

35 

33 

36 

36 

32

34 

41 

43 

47 

48

47 

47 

49 

50 

49

48 

48 

48 

47 

47 

48

Jan.

48 

47 

45 

37 

34

38 

39 

38 

42 

46

52 

57

57 

55 

51

49

48 

46 

45 

42

41 

41 

42 

48 

43

41 

41 

43 

44 

44 

43

Feb.

41 

41 

39 

40 

41

41 

41 

40 

38 

40

39

38 

37 

35 

33

32 

30 

31 

29 

29

29 

29 

29 

29 

28

25 

25 

22

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflir

June 

July 

Augu

Sept

wa

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

lendar year 194S

Mar.

20 

25 

23 

28 

33

35 

61 

54 

48

41

44 

45 

42 

40 

39

44 

48 

47 

47 

 43

47 

51 

53 

48 

64

111 

124 

129 

125 

122 

118

Apr.

116 

116 

105 

97 

91

93 

89 

104 

145 

156

132 

119 

105 

91 

79

91 

91 

75 

75 

80

74 

78 

1OO 

95 

73

65 

68 

74 

80 

75

Secondfoot -days

533 

771 

1,262

26,385

1,387 

951 

1,799 

2,832 

2,342 

1,654 

1,380 

1,103 

l,710£

17,724.5

Hay

79 

82 

86 

82 

83

90 

105 

109 

92 

84

84 

84 

81 

80 

84

98 

107 

93 

79 

66

73 

62 

63 

56 

48

49

53 

56 

48 

. 44 

42

Maxiuun

25 

55 

50

231

57 

41 

129 

156 

109 

69 

73 

85 

276

276

June

41 

48 

51 

50 

48

52

56 

57 

51 

56

63 

65 

59 

51 

45

45 

44 

52 

69 

73

65 

52 

61 

68 

60

58 

54 

51 

49 

60

July

68 

71 

73 

59 

67

65 

47 

51 

56 

49

40 

36 

32 

33 

35

37 

36 

37 

38 

43

49 

41 

41 

39 

39

38 

37 

38 

31 

28 

26

Minimum

13 

13 

31

13

34 

22

20 

65 

42 

41 

26 

18 

9.0

9.0

Aug.

25 

23 

25

33 

33

38 

36 

36 

38 

38

47 

45 

33 

37 

53

85 

80 

57 

45 

35

27 

26 

26 

21 

25

21 

18 

22 

27 

25 

23

Mean

17.2 

25.7 

40.7

72.3

44.7 

34.0 

58.0 

94.4 

75.5 

55.1 

44.5 

35.6 

57.0

48.6

Sept.

23 

26 

33 

33 

30

32

20 

9.0 

9.5 

9.0

12 

15 

18

14- 

24

5O 

49 

60 

54 

138

276 

194 

119 

91 

78

66 

66 

58 

53 

53

Runoff in 

acre-feet

1,060 

1,530 

2,500

52,340

2,750 

1.890 

3,570 

5,620 

4,650 

3,280 

2,740 

2,190 

3,390

35,170
240 MERCED RIVER BASIN

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

Location. Water-stage recorder, lat. 37 0 43'54", long. 199 0 33'28", at Happy. Isles Bridge, 

0.4 mile downstream from Illilouette Creek and 2.3 miles southeast of Yosemite Lodge in 

Yosemite National Park, Mariposa County. Datum of gage is 4,016.58 feet above mean sea 

level, datum of 1929.

Drainage area. 181 square miles.

Records available. August 1915 to September 1950.

Average discharge. 35 years, 335 second-feet.

Extremes. Maximum discharge during year, 2,520 second-feet June 1 (gage height, 6.62 

feetJ; minimum, 3.6 second-feet Oct. 4.

1915-50: 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 period of no gage-height record, which are fair, 

small diversion above station for Yosetnite Valley water supply..

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

30 

31

Oct.

.4

.2

.0 

.0 

.2

.2 

.2 

.6 

.8 

.8

.0 

.8 

.8 

.8 

.8

.6 

.6 

.8 

5.0 

5.6

5.3 

5.3 

5.6 

5.9 

6.2

6.2 

5.9 

5.6 

5.6 

5.3 

5.3

Nov.

5.3 

5.3 

5.3

5.0 

5.0

5.0 

5.0 

5.3 

7.7 

18

17 

18 

22 

25 

26

27 

25 

24 

25 

25

25 

24 

22 

22 

26

30 

30 

29 

28 

27

Dec.

25 

22

20ia

18

17 

17 

17 

15 

12

8.0 

8.5 

10 

10 

12

12 

12 

15 

15 

15

17ia

20 

20 

20

19 

19 

19 

19 

18 

17

Jan.

16 

15 

12 

14 

12

12 

13 

14 

13 

14

15 

16 

17 

15 

17

21 

32 

65 

58

65

72 

76 

92 

78 

72

83 

53 

53 

50 

72 

64

Feb.

43

40 

41 

59 

72

97 

85 

76 

74 

76

74 

71 

70 

7* 

83

93 

92 

97

106 

110

106 

111 

121 

131 

150

171 

178 

171

Month

Goto 

Hove 

Dec«

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

her. ....................................

Bfcer. ...........----------.-.-.---------

lendar year 194S

BUTT 

.......................

h. ....... ......... ...... .. ...

 tar ................ .... . . .

ter year 1949-50 .......................

Mar.

169 

156 

156 

178 

203

175 

156 

150 

135 

130

110 

100 

100 

100 

85

90 

110 

110 

130 

150

140 

160 

150 

150 

130

140 

130 

147 

164 

189 

234

Apr.

1,

1, 

1, 

1, 

1,

1,

1, 

1,

l',

1,

Secondfoot -days

154.4 

563.9 

504.5

96,534.3

1,221 

2,672 

4,427 

22,878 

39,763 

28,570 

6,697 

1,016 

444.7

108,911.5

283 

378 

460 

545

581

460 

388 

336 

302 

280

272 

299 

343 

280 

277

385 

554 

725 

970 

180

350 

360 

300 

320 

440

530' 

540 

340 

180 

220

Hay

1,150 

814 

655 

545 

509

468 

410 

374 

374 

436

536 

670 

892 

1,180 

1,420

1,710 

1,820 

1,720 

1,750 

1,960

1,900 

1,820 

1,580 

1,380 

1,510

1,820 

2,060 

2,010 

1,970 

2,140 

2,180

Maximum

6.2 

30 

25

2,130

92 

178 

234 

1,540 

2,180 

2,170 

504 

76 

30

2,180

June

2,170 

2,090 

1,890 

1,740 

1,700

1,630 

1,010 

760 

802 

750

750 

650 

690 

700 

770

844 

814 

808 

832 

962

1,040 

898 

808 

685 

484

413 

410 

440 

488 

522

July

504 

480 

416 

382 

350

357 

315 

277 

269 

277

250 

247 

245 

229

215

196 

178 

162 

145 

135

123 

115 

110 

106 

106

104 

97 

90 

80 

72 

65

Aug.

63 

74 

76 

70 

63

54 

47 

44 

39 

35

32 

31 

SO 

28 

26

24 

22 

22 

22

21

21 

22 

20 

20 

18

17 

17 

15 

15 

14 

14

Sept.

14

13 

14 

14 

15

15 

16 

20 

25 

30

28 

25 

22

19 

17

15 

15

17 

14 

12

12 

11 

10 

9.5 

8.5

7.7 

7.1 

6.5 

6.2 

6.2

Mmi-u. M^u, ££3^

4.0 4.98 306 

5.0 18.8 1,120 

8.0 16.3 1,000

3.0 264 191,500

12 39.4 2,420 

40 95.4 5,300 

85 143 8,780 

272 763 45,380 

374 1,283 78,870 

410 952 56,670 

65 216 13,280 

14 32.8 2,020 

6.2 14.8 882

4.0 298 216,000

sec . ft* 

Bate. Ho gage-height record Mar. 10-27t discharge confuted en basis of recorded range la stage 

and records for nearby stations.
MERCED RIVER BASIN 241

Merced River at Pohono Bridge, near Yosemite, Calif.

Location. Water-stage recorder, lat. 37°43'01", long. 119°39 1 55", 0.4 mile upstream from 

Artist Creek and 4.2 miles southwest of Yosemite Lodge, in Yosemite National Park, 

Mariposa County. Datum of gage is 3,862.66 feet above mean sea level, datum of 1929.

Drainage area. 321 square miles.

Records available. November 1916 to September 1950.

Average discharge. 33 years (1917-50), 580 second-feet.

Extremes. Maximum discharge during year, 4,490 second-feet May 28 (gage height, 7.99 

reet}; minimum, 17 second-feet Oct. 3, 5, 6.

1916-50: 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, water year 1949-50 (gage height. In feet,

and discharge, in second-feet) 

(Shifting-control method used Nov. 10 to Dec. 10)

Oct. 1 to May 28 May 29 to Sept. SO

0.7 17 2.3 267 4.5 1,230 0.7 17 2.3 285 4.5 

.9 31 2.7 377 5.0 1,580 .9 31 2.7 4O5 5.0 

1.2 64 3.1 510 6.0 2,380 1.2 64 3.1 550 6.0 

1.5 106 3.5 675 7.0 3,360 1.5 109 3.5 720 7.0 

1.9 176 4.0 920 8.0 4,500 1.9 189 4.0 970 S.O

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

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.

IS 

18 

18 

18

le

17 

18 

18 

IS 

19

19 

19 

18 

18 

18

18 

18 

18 

19 

20

21 

20 

20 

20 

20

21 

20 

20 

20 

19 

19

Nov.

19 

19 

19 

19 

19

19 

19 

21 

29 

48

37 

34 

35 

36 

41

42 

42 

40 

40 

40

39 

38

37 

37 

40

45 

47 

51 

50 

51

Dec.

48 

44 

41 

39 

38

36 

34 

34 

33

31

27 

25 

25 

25 

26

27 

29 

34

37 

31

31 

34 

36 

38 

37

37 

38 

38 

39 

37 

38

Jan.

36 

36 

31 

34 

31

32 

32 

34

36 

36

38 

39 

39 

40 

39

46 

106 

125 

148

152

172 

178 

209 

190 

144

124 

129

130 

117 

109 

104

Feb.

98 

98 

100 

146 

178

247 

214 

184 

172 

176

176 

165 

163 

165 

176

192 

190 

194 

216 

220

216 

223 

242 

267 

298

340 

354 

334

Month

Octo 

Hovei 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Na

ber

tuber

ober. ............. .--.---........--.-.

lendar year 1949 

ary

CttbGF . * * * ** 

ter year 1949-50 .......................

Mar.

331 

304 

304 

34S 

408

334

298 

290 

254 

232

225 

198 

198 

200 

190

192 

226 

230 

257 

301

280 

328 

306 

306 

277

280 

264 

2S5 

328 

377 

485

Apr.

1, 

1,

1, 

1, 

1, 

2,

2, 

2,

z,

2, 

2,

2, 

2, 

2, 

2, 

2,

Secondfoot -days

585 

1,055 

1,065

168,007

2,716 

5,744 

8,838 

45,2OO 

77,226 

46,771 

9,566 

1,811 

917

201,494

57S 

747 

904 

040 

120

909 

785 

684 

626 

578

570 

634 

716 

606 

618

855 

190 

450 

900 

280

600 

640 

530 

580 

780

930 

960 

630 

350 

410

Hay

2,320 

1,670 

1,350 

1,110 

1,090

1,040 

870 

805 

815 

956

1,150 

1,360 

1,750 

2,240 

2,720

3,270 

3,520 

3,360 

3,450 

3,670

3,680 

3,580

3,100 

2,820 

3,030

3,510 

3,840 

3,810 

3,610 

3,840 

3,890

Maximum

21. 

51 

46

3,670

209

 354 

485 

2,960 

3,890 

3.89O 

711 

111 

45

3,890

June

3,890 

3,650 

3,210 

2,900 

2,770

2,650 

1,820 

1,390 

1,400 

1,310

1,320 

1,140 

1,170 

1,170 

1,230

1,300 

1,270 

1,240 

1,250 

1,380

1,460 

1,290 

1,200 

1,030 

820

711 

670 

684 

711 

735

July

711 

675 

606 

558 

506

500 

454 

4O2 

379 

402

366 

353 

341 

315

293

289 

244 

220 

202 

1S7

176 

168 

160 

154 

152

148 

144 

134 

126 

115 

106

HlnlBura

17 

19 

25

17

31 

98 

190 

570 

80S 

670 

106 

31 

22

17

Peak discharge (base, 2,900 sec. -ft.). tor. 27 (l a.m.) 3,470 sec. -ft.; May

sec. -ft.; Hay 28 (l a.m.; 4,430" sec. -ft.

1,260 

1,590 

2,380 

3,360 

4,500

Aug.

99 

107 

111 

106 

97

SO 

84 

77 

70 

65

62 

59 

57 

54 

52

49 

45 

44 

42 

42

41 

41 

40 

39 

38

36 

35 

34 

33 

31 

31

Mean

1S.9 

35.2 

34.4

460

67.6 

205 

285 

1,507 

2,491 

1,559 

309 

58.4 

30.6

552

21 (12:30

Sept.

30

29 

29 

30 

29.

31 

31 

33

37 

44

45 

43 

39 

36 

33

31 

31 

32

31 

29

28 

27 

26 

25 

25

24 

23 

22 

22 

22

Runoff in 

acre-feet

1,160 

2,090 

2,110

353,200

5,390 

11,590 

17,530 

89,650 

153,200 

92,770 

18,970 

3,590 

1,820

399,700

a.m .) 4,240
242 MERCED RIVER BASIN

Merced River at Bagby, Calif.

Location. Water-stage recorder . lat. 37°36'50", long. 120°08<10", in Rancho Mariposa 

urant, 800 feet upstream from highway bridge at Bagby, Mariposa County. Altitude of 

gage, about 850 feet (from topographic map).

Drainage area. 912 square miles.

Records available. October 1947 to September 1950. November 1922 to November 1928 at 

site 5.2 miles downstream, and November 1928 to September 1947 at site 4.0 miles downstream, published as Merced River at Horseshoe Bend prior to October 1931, and as 

Merced River at Kittridge October 1931 to September 1947.

Average discharge. 24 years (1923-27, 1929-30, 1931-50), 1,211 second-feet.

Extremes . Maximum discharge during year, 8,690 second-feet Feb. 4 (gage height, 7.02 

reet ) ; minimum, 31 second-feet Oct. 6.

1922-50: Maximum discharge, 59,000 second-feet Dec. 11, 1937 (gage height, 31.0 

feet, from floodmarks, site and datum then in use), from rating curve extended above 

11,000 second- feet on basis of velocity-area studies and records of change in contents 

in. Lake McClure; minimum, 13 second-feet Oct. 5, 1925, site then in use.

Remarks . Records good. No storage or large diversion above station.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, in second-feet) 

(Backwater from moss on control Oct. 20 to Jan. 17)

0.8 31 1.3 104 2.4 540 4.5 2,690 

.9 42 1.5 153 2.9 370 5.3 4,090 

1.0 54 l.S 252 3.4 1,280 5.7 4,930 

1.1 68 2.1 375 3.9 1,830 6.1 5,900

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

33 

33 

33 

32 

32

32 

32 

33 

34 

36

38 

40 

40 

40 

36

34 

33 

32 

32 

32

35 

41 

39 

44 

43

41 

41 

42 

42 

42 

42

Nov.

41 

41 

41 

41 

40

40 

40 

42 

57 

302

286 

159 

125 

113 

106

106 

106 

104 

100 

93

98 

98 

96 

94 

94

94 

102 

106 

106 

104

Dec.

102 

93 

96 

89 

83

80 

78 

80 

35 

85

73 

70 

60 

62 

68

70 

73 

113 

233 

159

104 

96 

93 

96 

96

94 

93 

94 

96 

98 

96

Jan.

91 

94 

98 

70 

80

32 

37 

102 

127 

109

168 

150 

140 

165 

159

162 

1,750 

1,230 

835 

779

730 

717 

691 

1,100 

652

474 

420 

807 

793 

570 

464

Feb.

395 

357 

344 

2,350 

3,520

4,370 

2,120 

1,170 

' 835 

765

307 

673 

606 

576 

564

582 

532 

564 

582 

594

588 

576 

588 

613 

665

724 

786 

786

Month

Goto 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Ntav

June 

July 

Augu 

Sept

Wa

lender year 194S 

ary

ter year 1949-50 .......................

Mar.

765 

724 

698 

730 

835

807 

704 

672 

632 

564

540 

510 

480 

464 

458

447 

480 

55S 

540 

821

698 

704 

772 

1,260 

1,630

1,240 

1,040 

952 

945 

975 

1,120

Apr.

' 1, 

1, 

1, 

1, 

2,

1, 

1, 

2, 

2, 

2,

1, 

1, 

1, 

1, 

1,

1, 

2, 

2, 

3, 

3,

4,

4, 

4, 

4, 

4,

4, 

4, 

4, 

3, 

3,

Secondfoot -days

1,139 

2,930 

2,923

311,679

13,946 

.27,737 

23,315 

84,290 

116,910 

62,706 

11,434 

2,438 

1,446

_ 351,369

Peak discharge (base, 6,000 sec. -ft.). Feb. 4 (11 p.m

sec.-rt.; Hay 2s (s:su a.ra.J 6,9'4'0" sec. -ft.

240 

470 

700 

860 

130

820 

630 

500 

460 

040

790 

750 

840 

590 

450

610 

130 

560 

230 

320

400 

520 

310 

230 

580

780 

930 

350 

770 

750

May

3,940 

2,370 

2,320 

1,880 

1,830

1,750 

1,540 

1,400 

1,380 

1,480

1,810 

1,990 

2,440 

3,300 

3,920

4,950 

5,390 

5,160 

5,OOO 

5,520

5,670 

5,490 

4,630 

4,130 

4,330

5,040 

5,490 

5,690 

5,210 

5,690 

5,690

Maximum

44 

302 

238

6,450

1,750 

4,370 

1,630 

4,980 

5,690 

5,690 

828 

. 135 

62

5,690

June

5,690 

5,300 

4,670 

4,150 

3,860

3,820 

2,690 

2,010 

1,910 

1,780

1,760 

1,550 

1,490 

1,520 

1,540

1,610 

1,530 

1,520 

1,500 

1,590

1,710 

1,570 

1,400 

1,260 

1,050

392 

828 

800 

821 

835

July

823 

779 

730 

653 

606

570 

552 

498 

452 

464

458 

415 

405 

380 

352

326 

298 

279 

260 

233

223 

206 

196 

186 

177

177 

171 

165 

153 

145 

137

Aug.

130 

125 

135 

135 

130

122 

118 

109 

100 

94

39 

85 

SO 

76 

73

71 

70 

65 

62 

58

. 55 

54 

54 

53 

53

52 

50 

43 

48 

47 

47

Sept.

44 

42 

42 

41 

40

40 

41 

42 

43 

54

53 

62 

61 

58 

54

5E 

54 

57 

53 

60

58 

52 

47 

47 

43

42 

40 

40 

38 

36

Minimum Mean %55£

32 36.7 2,260 

40 99.3 5,910 

60 94.5 5,810

29 854 618,100

70 450 27,660 

344 991 55,02O 

447 768 47,240 

1,240 2,310 167,200 

1,360 3,771 231,900 

800 2,090 124,400 

137 370 22,780 

47 80.3 4,930 

36 48.2 2,870

32 964 693,000

.) 3,690 sec. -ft.; May 21 (4 a.m.) 6,800
MERCED RIVER BASIN 243

Lake McClure at Exchequer, Calif.

Location. Indicator in powerhouse, lat. 37°35', long. 120*16', in-SW^ sec. 13, T. 4 S., 

H. ii> E., at Exchequer Dam on Merced River, 5 miles northeast of Merced Falls. Datum 

of gage is at mean sea level (levels by Merced Irrigation District).

Drainage area. 1,020 square miles.

Hecoras available. April 1926 to September 1950.

extremes. Maximum contents during year, 286,200 acre-feet May 28 (elevation, 708.8 feet); 

minimum, 11,000 acre-feet Oct. 17-28 (elevation, 512.5 feet).

1926-50: Maximum contents, 289,400 acre-feet June 4/11938 (elevation, 710.0 f«et); 

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 acre-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 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

11,800

11,800

11,700

11,700

11,600

11,500

11,400

11,300

11,300

11,300

11,200

11,200

11,200

11,100

11,100

11,100

11,000

11,000

11,000

11,000

11,000

11,000

11,000

11,000

11,000

11,000

11,000

11,000

11,100

11,100

11,100

Nor.

11,100

11,100

11,100

11,100

11,100

11,100

11,100

11,100

11,100

11,500

12,000

12,200

12,400

12,500

12,600

12,700

12,800

13,000

13,100

13,200

13,300

13,400

13,500

13,600

13,700

13,800

13,900

14,100

14,300

14,200

-

Dec.

14,500

14,600

14,700

14,900

14,900

15,000

15,100

15,200

15,300

15,500

15,300

15,400

15,500

15,600

15,600

15,700

15,800

15,900

1ft, 400

16,800

17,000

17,100

17,200

17,400

17,600

17,800

17,900

18,000

13,200

18,300

18,400

Jan.

18,600

18,800

18,900

19,000

19,100

19,300

19,400

19,500

19,800

20,000

20,400

20,80O

21,100

21,5OO

22,000

22,400

27,700

30,700

35,100

36,800

38,300

39,700

41,200

43,700

45,000

46,100

46,300

49,100

51,100

52,400

55,400

Feb.

54,300

54,500

_

58,000

67,200

76,700

80,700

82,400

83,400

84,100

84,900

85,300

85,800

85,900

86,000

86,500

86,300

86,600

86,700

86,800

87,100

87,200

87,300

87,500

87,700

68,100

88,600

89,300

_

-

-

liar.

89,700

90,200

90,500

91 ,000

91,600

92,200

92,500

92,800

92,900

92,900

92,900

92,900

92,500

92,200

90,800

89,700

88,100

86,600

85,000

84,500

84,000

82,400

S3, 200

86,000

91,000

94,100

93,600

98,900

101,000

103,100

104,500

Apr.

105,700

107,600

111,200

113,300

115,600

117,000

117,800

120,500

123,800

125,900

127,300

128,400

129,700

130,500

131,000

131,900

133,700

136,300

140,200

144,900

150,700

157,000

162,600

166,100

172,000

178,500

185,100

190,600

195,000

199,000

-

May

203,200

205,300

207,100

207,700

208,400

208,800

209,000

208,800

208,400

208,400

208,200

208,800

210,400

211,200

217,500

224,900

231,800

238,400

244,400

251,200

258,500

265,100

270,500

274,400

279,700

284,000

285,900

286,200

285,100

285,100

285,100

June

285,100

284,500

284,000

284,500

284,800

284,500

283,200

282,900

282,900

282,600

282,100

282,100

281,000

280,500

280,000

279,700

279,400

278,900

278,600

278,100

278,100

277,800

277,000

275,700

274,200

272,100

270,300

268,200

266,100

264,300

-

July

262,000

260,000

257,800

255,200

252,800

250,000

247,300

244,400

241', 500

238,400

235,800

232,700

230,600

228,100

224,900

221,900

213,400

215,200

212,100

209,000

205,700

202,300

199,000

194,300

190,800

187,500

184,100

180,500

177,100

173,700

170,500

Aug.

167,200

163,800

160,900

157,900

154,800

151,900

149,000

146,000

142,900

139,800

136,600

133,700

130,800

127,800

124,700

121,600

119,200

118,000

112,800

109,700

107,400

104,300

101,200

98,000

94,800

91,800

88,800

85,500

82,000

78,800

75,800

Sept.

72,800

69,800

66,800

63,700

60,500

57,400

54,500

51,400

48,500

45,800

42,600

39,800

37,'200

34,600

32,000

29,400

26,800

24,200

21,700

19,300

17,600

18,100

16,100

16,100

f 16,100

16,100

16,100 T6,iob

16,100

16,100

-

Monthly elevation and contenta, water year Octooer 1949 to September 1950

Date

Dec. 31......................

Sept. 30. .....................

Elevation 

(feet)t

514.9

529.9

_

576.4

658.4

525.2

Contents 

(acre-feet)

11,900

18,400

_

104,500

170,500

16,100

Change in contents 

during month 

(acre-feet)

_

-800

+3,100

+4,200

-18,300

+35,000

+35,900

+15,200

+94,500

+86,100

-20,800

-93,800

-94,700

-59,700

+4,200

t Elevation at 12 p.m.
244 MERCED RIVER BASIN

Merced River at Exchequer, Calif.

Location.--Long distance water-stage transmitter, lat. 37°35', long. 120°17', on line be-

 tweeh 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 1950. November 1915 to October 1922 at site

i mile upstream. 

Average discharge. 34 years (1916-50), 1,215 second-feet; affected by storage in Lake

Mcuiure since Apr. 20, 1926. 

Extremes.--Maximum discharge during year, 6,200 second-feet May 28 (gage height,- 8.40

reet); minimum, 16 second-feet Jan. 27.

1915-50: Maximum discharge observed, about 22,000 second-rfeet Jan. 17, 1916 (gage

height, 20.0 feet, site and datum then in use), from rating curve extended above 9,000

second-feet; minimum, 5 second-feet Jan. 5, 1935. 

Remarks. Records excellent Feb. 6 to Mar. 24, Bar. 31 to Sept. 22, good for remainder of

 year. No large diversion above station. Flow regulated by Exchequer power plant and

Lake McClure beginning in April 1926 (see preceding page). 

Cooperation. ope: Water-stage recorder graph, furnished by'Merced Irrigation District, ob- ~taIned in connection with a Federal, Power Commission project.

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1 to Feb. 6, Sept. 23-30)

0.05 32 0.8 148 3.O 975 5.5 2,85O 

.1 36 1.1 217 3.5 1,270 6.O 3,320 

.2 47 1.5 327 4.O 1,61O 6.7 4,070 

.3 61 2.O 498 4.5 1,99O 7.4 4,1900 

.5 93 2.5 716 5.0 2,40O 8.2 5,920

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

50 

31

Oct.

62 

62 

62 

62 

62

62 

62 

62 

62 

62

62 

62 

62 

62 

49

38 

38 

38 

37 

37

37 

37 

37 

40 

43

44 

44 

41 

44 

41 

41

Nov.

41 

41 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

38 

38 

38

37 

37 

37 

37 

37

Dec.

37 

38 

38 

38 

37

37 

37 

37 

37 

38

38 

38 

36 

34 

35

37 

38 

38 

38 

38

38 

38 

38 

38 

37

36 

36 

36 

36 

36 

36

Jan.

36 

36 

36 

36 

36

36 

36 

37 

37 

37

36 

35 

34 

36 

36

34 

41 

36 

34 

34

34 

34 

34 

34 

34

34 

33 

42 

41 

40 

37

Feb.

36 

36 

35 

42 

42

394 

615 

638 

533 

532

532 

533 

531 

535 

534

53S 

538 

537 

537 

534

532 

533 

535 

536 

537

539 

540 

538

'Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Via

nber. ........... ....... .....

lendar year 194! .......................

ter year 1949-50 .......................

Mar.

539 

542 

539 

536 

538

544 

546 

546 

546 

652

542 

550 

652 

769 

936

1,110 

1,230 

1,260 

1,260 

1,100

958 

931 

970 

409 

55

55 

44 

38 

38 

52 

405

Apr.

6S4 

684 

684 

89S 

1,130

1,230 

1,280 

1,320 

1,300 

1,290

1,290 

1,310 

1,310 

1,280 

1,310

1,310 

1,300 

1,340 

1,380 

1,410

1,410- 

1,450 

1,460 

1,510 

1,530

1,540 

1,540 

1,570 

1,620 

1,670

Secondfoot-daye

1,554 

1,201 

1,149

326,544

1,116 

12,542 

18,892 

39,040 

73,790 

73,000 

57,520 

48,060 

28,898

356,762

May

1,720 

1,740 

1.71O 

1,690 

1,640

1,600 

1,600 

1,590 

1,610 

1,690

1,780 

1,790 

1,740 

1,740 

1,740

1,750 

1,780 

1,820 

1,S90 

1,890

1,920 

1,930 

1,930 

1,910 

1,880

2,060 

4,810 

5,910 

5,580 

5,610 

5,740

Maximum

62 

41 

38

4,760

42 

633 

1,26C 

1,670 

5,910 

SyTOb 

1,930 

1,760 

1,460

5,910

June

5,700 

5,520 

4,840 

3,520 

3,780

3,990 

3, ISO 

2,090 

2,010 

1,960

1,900 

1,S50 

1,820 

1,810 

1,810

1,810 

1,780 

1,770 

1,770 

1,780

1,820 

1,850 

1,870 

1,870 

1,850

1,800 

1,780 

1,810 

1,830 

1,830

July

1,840 

1,830 

1,850 

1,880 

1,890

1,920 

1,930 

1,920 

1,880 

1,870

1,860 

1,870 

1,890 

1,890 

1,870

1,870 

1,840 

1,820 

1,810 

1,820

1,340 

1,830 

1,830 

1,850 

1,850

1,850 

1,850 

1,850 

1,820 

1,810 

1,790

Aug.

1,760 

1,710 

1,670 

1,660 

1,590

1,550 

1,590 

1,620 

1,610 

1,590

1,560 

1,540 

1^530 

1,510 

1,540

1,550 

1,550 

1,550 

1,550 

1,550

1,550 

1,550 

1,540 

1,520 

1,510

1,460 

1,450 

1,440 

1,430 

1,410 

1,420

MlniBUB Mean

37 50.1 

37 40.0 

34 37.1

34 695

33 36.0 

35 448 

38 609 

684 1,301 

1,590 2,380 

1,770 2,433 

1,790 1,855 

1,410 1»550 

45 963

33 977

Sept.

1,430 

1,450 

1,460 

1,460 

1,460

1,450 

1,440 

1,420 

1,410 

1,390

1,360 

1,330 

1,290 

1,280 

1J270

1,280 

1,250 

1,230 

1,170 

1,120

804 

735 

74 

51 

48

45 

48 

48 

47 

48

Runoff in 

acre-feet

3,080 

2,380 

2,280

647,800

2,210 

24,880 

37,470 

77,430 

146,400 

144,800 

114,100 

95,330 

57,320

707,700
MERCED RIVER BASIN 245

Merced River near Stevinson, Calif.

Location.--Water-stage recorder, lat. 37°22', long. 120°56', in sec. 36, T. 6 S., R. 9 

K., 5 miles upstream from mouth and 6 miles northwest of Stevinson. Datum of gage is 

56.09 feet above mean sea level (levels by Bureau of Reclamation).

Drainage area. 1,274 square miles.

Records available. October 1940 to September 1950.

Average discharge. 10 years, 742 second-feet.

Extremes. Maximum discharge during year, 3,450 second-feet June 3 (gage height, 11,26 

reet); minimum, 100 second-feet Oct. 19.

1944-50: Maximum discharge, 4,960 second-feet May 10, 1945 (gage height, 13.15 

feet); minimum, 68 second-feet Mar. 8, 1948.

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

Practically entire flow is diverted above station during irrigation season; some return flow enters above. Plow regulated by Lake McClure (see p. 243).

Cooperation. Ten discharge measurements furnished by State of California.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

" 21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

144 

149 

139 

147 

140

132 

131 

140 

156 

152

148 

143 

144 

144 

143

157 

132 

107 

102 

112

117 

116 

123 

123 

123

125 

12S 

127 

123 

123 

126

Nov.

122 

117 

121 

123 

125

127 

127 

130 

130 

132

132 

134 

136 

136 

135

135 

135 

139 

139 

139

142 

138 

139 

134 

134

138 

138 

138 

136 

136

Dec.

135 

136 

139 

142 

147

145 

149 

149 

148 

148

148 

147 

149 

148 

149

148 

149 

153 

153 

154

161 

158 

153 

152 

149

148 

145 

144 

142 

140 

139

Jan.

139 

139 

140 

140 

138

139 

139 

142 

144 

147

152 

156 

154 

154 

158

162 

168 

269 

510 

338

272 

238 

217 

206 

199

190 

184 

186 

322 

428 

E65

Feb.

211 

182 

167 

160 

220

703 

703 

732 

686 

673

675 

719 

692 

664 

654

648 

637 

635 

631 

627

627 

633 

631 

631 

629

622 

620 

616

Month

OctO 

Nova

Dece:

Ca

Janu 

Pebr 

Hare 

Aprl

Hay.

June 

July 

Augu 

Sept

Wa

nber. .............--.---...-----........

lendar year 1949

ter year 1949-50 .......................

Mar.

616 

616 

612 

 612 

610

610 

598 

538 

542 

353

358 

346 

310 

292 

295

275 

267 

270 

272 

241

226 

226 

211 

263 

388

8400 

8350 

270 

244 

218 

202

Apr.

184 

172 

174 

222 

198

186 

187 

212 

293 

387

472 

540 

534 

522 

550

552 

532 

472 

417 

355

286 

230 

194 

182 

157

148 

131 

128 

130 

144

Secondfoot -day s

4,116 

3,987 

4,567

97,137

6,335 

16,028 

11,631 

8,889 

14,827 

30,224 

4,908 

5,476 

5,950

116,938

May

162 

1S1 

188 

175 

172

192 

199 

216 

200 

176

206 

218 

198 

196 

a!95

154 

156 

158 

161 

156

190 

218 

187 

132 

194

162 

153 

650 

2,740 

3,260 

3,230

Maximum

157 

142 

161

2,420

510 

732 

616 

552 

3,260 

3,420 

194 

214 

297

3,420

June

3,390 

3,420 

3,420 

3,170 

2,380

1,910 

2,150 

1,850 

1,020 

710

660 

588 

520 

504 

406

375 

368 

362 

364 

315

279 

a250 

a230 

a235 

a240

a246 

239 

218 

206 

199

July

186 

186 

176 

153 

165

149 

131 

158 

188 

194

176 

162 

143 

130 

148

169 

188 

169 

152 

138

125 

128 

149 

178 

158

131 

139 

147 

144 

172 

176

Minimum

102 

117 

135

102

138 

160 

202 

126 

153 

199 

125 

149 

142

102

Aug.

171 

165 

162 

182 

181

192 

210 

184 

194 

188

160 

149 

171 

198 

188

167 

152 

154 

156 

186

214 

200 

199 

198 

172

161 

162 

164 

174 

161 

161

Mean

133 

133 

147

266

204 

572 

375 

296 

473 

1,007 

158 

177 

198

320

Sept.

160 

176 

169 

174 

151

157 

158 

147 

142 

169

136 

194 

198 

205 

211

223 

265 

297 

286 

290

277 

228 

212 

226 

204

194 

172 

158 

153 

166

Runoff in 

acre-feet

8,160 

7,910 

9,060

192,700

12,570 

31,790 

23,070 

17,630 

29,410 

59,950 

9,730 

10,660 

11,800

231,900

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

San Joaquin River at Fremont Ford Bridge and near NeWman.

207481 O - 52 - 17
246 MERCED RIVER BASIN

Tenaya Creek near Yemenite, Calif.

Location. Water-stage recorder, lat. 37°44'33", long. 119°33'25", in Yosemite National 

Fark, at bridge 0.7 mile upstream from mouth and 2.2 miles east of Yosemite Lodge, 

Mariposa County. Altitude of gage, about 4,000 feet (from topographic map).

Drainage area. 47 square miles.

Records available. July 1904 to June 1909, January 1912 to September 1950.

Average discharge. 37 years (1913-50), 103 second-feet.

Extremes. Maximum discharge during year, l,080i second-feet May 27 (gage height, 4.39 

reet); minimum, 0.9 second-foot Nov. 11-26.

1904-9.' 1912-50: Maximum discharge, 5,550 second-feet Dec. 11, 1937 (gage height, 

10.0 feet), from rating curve extended above 2,000 second-feet on basis of velocityarea studies; minimum, 0.6 second-foot Dec. 18-22, 1929, Dec. 2, 6-15, 1940.

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

Fair. No storage or diversion.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2 

1.2

Nov.

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.0 

1.2 

1.4

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

3.6 

6.0 

6.0 

6.7

Dec.

6.0 

5.6 

5.3 

4.9 

4.5

4. -2 

3.8 

3.4 

3.0 

2.7

2.3 

1.9 

1.8 

1.8 

1.8

1.8

1.8 

1.9 

3.0 

2.1

1.9 

2.1 

2.7 

3.0 

3.8

4.2 

4.5 

4.9 

5.6 

5.6 

6.0

Jan.

6.7 

7.4 

6.0 

6.0 

6.0

6.0 

6.0 

7.4 

6.7 

6.7

7.4 

6.7 

7.4 

8.8 

7.4

8.1 

16 

27 

35 

35

38 

40 

50 

44 

35

29 

24 

23 

21 

18 

16

Feb.

14 

12 

12 

23 

32

56 

50 

42 

37 

37

35 

32 

32 

32 

37

38 

37 

38 

42 

42

40 

42 

46 

50 

58

69 

74 

69

Month

Oo to 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Apr* 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Peak discharge (base, 490 sec. -ft.). Apr.

see.-ft.3 May 27 (8s30 p.m.) 1,080 sec. -ft.

Mar.

67 

60 

62 

76 

83

65 

56 

54 

46 

40

38 

34 

34 

32 

29

29 

38 

37 

46 

48

44 

56 

50 

50 

46

46 

48 

52 

60 

72 

93

Apr.

112 

141 

166 

186 

176

157 

144 

132 

132 

126

126 

141 

157 

147 

166

244 

306 

337 

427 

495

527 

532 

510 

523 

553

580 

576 

510 

456 

468

Secondfoot -days

37.2 

48.7 

107.9

28,054.8

561.7 

1,128 

1,591 

9,251 

15,214 

7,701 

995.1 

85.0 

39.0

36,759.6

May

419 

292 

234 

1S9 

186

172 

154 

138 

138 

166

199 

262 

356 

464 

562

668 

701 

663 

691 

725

725 

691 

603 

571 

635

740 

810 

755 

755 

765 

775

Maximum

1.2 

6.7 

6.0

653

50 

74 

93 

580 

810 

750 

78 

8.1 

1.4

810

June

750 

672 

576 

519 '493

423 

325 

262 

244 

234

223 

202 

199 

192 

195

195 

189 

182 

177 

172

169 

160 

157 

147 

135

124 

109 

99 

91 

86

July

78 

76 

74 

67 

62

58 

54 

48 

44 

50

48 

46 

40 

35 

30

27 

23 

21 

18 

15

12

10 

9.5 

8.1 

7.4

6.7 

6.0 

5.6 

5.6 

5.3 

4.9

Minimum

1.2 

.9 

1.8

.9

6.0 

12 

29 

112 

138 

86 

4.9 

1.4 

1.0

.9

Aug.

4.9 

8.1 

5.6 

4.9 

4.5

4.2 

3.8 

3.4 

3.0 

2.7

2.3 

2.3 

2.3 

 2.3

2.1

1.9 

1.9 

1.8 

1.8 

1.9

1.9

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1,8 

1.8 

1.6 

1.4

Mean

1.20 

1.62 

3.48

76.9

18.1 

40.3 

51.3 

308 

491 

257 

32.1 

2.74 

1.30

101

Sept.

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.2 

1,2 

1.2 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

Runoff In 

acre-feet

74 

97 

214

55,650

1,110 

2,240 

.3,160 

18, 350 

30, 180 

15,270 

1,970 

169 

77

72,910

26 (9:30. p.m.) 750 sec. -ft.; May 20 (8:30 p.m.) 965

Note. Doubtful gage-height record Oct. l-19j discharge Interpolated.
MERCED RIVER BASIN 247

Merced River Slough near Newman, Calif.

Location.--Water-stage recorder, lat. 37°22', long. 120°S8', in NE£ sec. 3, T. 7 S., R. 9 

K., u.l mile downstream from bridge, 0.2 mile downstream from head of slough between 

Merced and San Joaquin Rivers, and 4.5 miles northeast of Newman. Datum of gage is 

54.44 feet above mean sea level (levels by Bureau of Reclamation).

Records available. October 1941 to September 1950.

Extremes.--Maximum discharge during year, 434 second-feet June 3 (gage height, 7.07 feet); 

no now for several months.

1944-50: Maximum discharge, 990 second-feet May 10, 12, 1945 (gage height, 7.50 

feet); no flow for several months each year.

Remarks. Records good. Slough flows from Merced River to San Joaquin River, bypassing 

gaging station on San Joaquin River near Newman.

Cooperation. One measurement furnished by Division of Water Resources, Department of 

hiDlic Works, State of California.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7

a

9 

10

11

12 

13 

14

15

16 

17 

IS 

19 

ZQ

21 

ZZ 

23 

24,

25

26 

21 

28 

29 

SO 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

ca

Janu 

Febr 

Marc 

Apr! 

Hay.

June 

July 

Augu 

Sept

Wa

lendar year 194£ 

ary

ter year 1949-5O .......................

Mar. Apr.

Secondfoot-days

O 

0 

0

791.0

0 

0 

0 

O 

1,041.5 

2,371.6 

0 

O 

O

3,413.1

May

0 

0 

0 

0 

0

O 

0 

0 

0 

O

0 

0 

0

o 

o

0 

0

o 

o 

o

0 

0

o

0 

0

o

0 

1.5 

246 

397 

397

Maximum

0

o

0

198

O 

O 

0 

0 

397 

430 

O 

0 

0

430

June

423 

430 

430 

386 

243

128 

176 

131 

24 

.4

.1 

.1 

0 

O 

0

0 

0 

0 

0 

O

O 

O 

O 

0 

O

o 

o 

o

0

o

July

Minimum

0 

0 

0

0

o

0 

0

o

0

o

0 

0

o

o

Aug.

Mean

0 

0

o

2.16

0 

O 

O 

0 

33.6 

79.1 

0 

O 

0

9.35

Sept.

Runoff in 

acre-feet

o

0

o

1,570

O 

0 

0 

0 

V 2,070 

4,700 

0 

0 

O

6,770
248 ORESTIMBA CREEK BASIN

Orestimba Creek near Newman, Calif.

Location. Water-stage recorder, lat. 37°19'09", long. 121°07'14", in NW£ sec. 20, T. 7 

s., H. 8 E., at highway bridge 3 miles downstream from Oso Creek and 5 miles west of 

Nevraian. Datum of gage is 191.86 feet above mean sea level (unadjusted)-.

Drainage area. 129 square miles.

Records available.--January 1932 to September 1950.

Average discharge. 18 years, 15.7 second-feet.

Extremes.--Maximum discharge during year, 175 second-feet Feb. 5 (gage height, 1.80 feet); 

no flow during several months.

1932-50: 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 and logarithmic plotting; no flow during several months each year.

Remarks. Records fair. No -storage or large diversion.

Cooperation. Two discharge measurements furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21. 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

0 

0 

0 

0 

98

85 

50 

20 

10 

12

20 

13 

8.0 

4.8 

3.2

. 1.9 

1.3 

.8 

.3

.2

.1 

0 

0 

0 

0

0 

0 

0

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Hay.

June 

July 

Augu 

Sept

Wa

lendar year 1949

h. ......................................

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

Mar. Apr.

Secondfoot-days

0 Q0

361.1

0 

328.6 

0 

0 

0 

0 

0 

0 

0

328.6

May

Maximum

0 

0 

0

196

0 

98 

0 

0 

0 

0 

0 

0 

0

98

June

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

O 

0 

0

.95

0 

11.7 

0 

0 

0 

0 

0 

0 

0

.90

Sept.

Runoff in 

acre-feet

0 

0 

0

716

0 

652 

0 

0 

0 

0 

0 

0 

0

652

Peak discharge (base, 50 see.-ft.).--Feb. 5 (3 a.m.) 175 sec.-ft.
TUOLUMNE RIVER BASIN 

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.

249

Location.--Water-stage recorder', lat. 37°57', Ions. 119°47', in NW£ sec. 16, T. 1 N., R. 

20 E., at O'Shaughnessy Dam on Tuolumne River at Hetch Hetchy in Yosemite National 

Park, 1.5 miles downstream from Palls 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 1950 (1923-30, gage heights only).

Extremes.--Maximum contents during year, 365,300 acre-feet June 6 (elevation, 3,808.5 

 feet); minimum, 58,100 acre-feet Mar. 29, 30 (elevation, 3,600.7 feet).

1923-50: Maximum contents, that of June 6, 1950; no contents at times in 1929, 1930, 

1931.

Remarks. Reservoir is formed by concrete gravity-type dam, completed to crest elevation 

377^6.5 feet in 1923 and raised to 3,812.0 feet in 1937; storage began Apr. 6, 1923. 

10-foot drum gates were installed on spillway in 1949. Usable capacity, 360,400 acrefeet between elevations 3,512.0 feet (somewhat above bottom outlet) and 3,806.0 feet 

(top of drum-type spillway gates) above mean sea level. Water flows down Tuolumne River 

15 miles to Early intake, where part is diverted through Hetch Hetchy aqueduct to 

Moccasin Creek power plant. At Moccasin Creek diversion dam, water re-enters Hetch 

Hetchy aqueduct and flows into Crystal Springs Reservoir, .which supplies city of San 

Francisco. Surplus water is spilled into Don Pedro Reservoir at Red Mountain Bar. Hetch 

Hetchy Reservoir is main storage unit of Hetch Hetchy water-supply system for San 

Francisco. Records show contents at 12 p.m., all of>which is available for release.

Contents, in acre-fe%t water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

233,800

232,500

231,000

229,500

228,200

226,500

225,000

223,500

222,000

220,700

219,200

217,900

216,600

215,200

213; 600

212,100

210,600

209,400

207,900

206,500

205,100

203,500

202,000

200,600

199,200

197,800

196,400

194,900

193,500

192,100

190,700

Nov.

189,400

187,900

186,600

185,300

1S3,SOO

182,400

181,100

179,700

178,600

177,600

176,400

175,000

173,700

172,300

171,000

169,700

168,300

167,200

165,800

164,500

163,200

161,800

160,500

159,200

158,000

157,000

155,600

154,500

153,200

152,100

-

Dec.

150,800

149,400

148,200

146,800

145,500

144,200

143, OQO

141,700

140,300

138,900

137,600

136,200

135,000

133,600

132,200

130,800

129,600

128,500

127,200

125,800

124,400

123,000

121,700

120,300

119,100

117,800

116,500

115,200

113,900

112,600

111,500

Jan.

110,200

108,900

107,500

106,300

105,100

103,700

102,400

101,100

99,900

98,600

97,300

96,100

94,900

93,700

92,500

91,600

91,800

91,800

91,400

90,900

90,600

90, 400

90,600

90,500

89,800

89,000

88,300

87,700

g86,900

g86,100

g85,200

Feb.

g84,300

83,300

82,300

82,100

82,100

82,200

82,000

81,400

80,600

79,900

79,200

78,400

77,700

76,900

76,300

75,700

75,200

74,600

74,100

73,600

73,000

72,500

72,000

71,500

71,100

70,900

70,800

70,600

.

-

-

Mar.

70,400

70,000

69,600

69,400

69,300

68,900

68,400

68,000

67,300

66,500

65,800

65,000

64, 200

63,500

62,600

61,800

61,100

60,500

60,300

60,300

59,900

59,800

59,600

59,500

59,200

58,800

58,400

58,200

58,100

58,100

58,400

Apr.

59,100

60,200

61,600

63,100

64, 700

65,900

66,900

67,800

68,300

69,000

69,900

70,900

72,000

72,600

73 , 200

74,500

76,400

78,900

82,300

86,700

92,100

97,400

102,500

107,500

113,100

118,800

125,000

130,000

L34, 200

138,800

-

Hay

143,000

145, 80C

147,700

149,100

150,300

151,400

151,800

152,400

152,800

153,500

155, 200

157,700

161,400

167,000

173,800

182,000

191,100

199,500

207,800

217,100

227,000

237,000

245,700

253,300

262,700

274,100

286', 200

298,700

310,400

322,200

335,200

June

347,000

354,900

g363,500

g364,300

#64,900

J364.5OO

g361,500

360,200

359,800

360,200

360,800

360,200

360,400

360,600

360,000

356,000

349,200

344,100

342,600

349,000

355,000

358,200

£62,100

5363,100

5362,700

5362,500

5362,500

5362,500

5362,700

5362,500

-

July

£62,300

£62,300

5362,100

361,200

357,000

352,300

348,600

348,600

348,600

348,800

348,600

348,800

348,600

348,400

348,000

347,400

346,600

346,100

345, 100

344,300

343,400

342,400

341,400

340,400

339,500

338,500

337,400

556,400

335,200

334,100

332,900

Aug.

331,800

330,400

329,300

328,000

326,800

325,500

324,300

323,000

321,700

320,500

319,200

317,900

316,600

315,300

313,800

312,400

311,100

309,800

308 j 500

307,000

305,700

304,400

302,900

301,600

300,100

298,500

297,200

295,900

294,600

293,100

291,800

Sept.

290,600

289,300

288,000

286,700

285,300

284,000

282,500

281,100

279,800

278,600

277,100

275,800

274,400

273,200

271,700

270,300

268,900

267,700

266,200

264,800

263,400

262,000

260,800

259,200

258,000

256,600

255,200

253,800

252,300

250,900

-

g Computed from tcraph based on gage readings.

Monthly elevation and contents, water year October 1949 to September 1950

Date

Sept. 30. ..................

Oct. 31...................

Nov. 30...................

Dec. 31......... ..........

Calendar year 1949. .....

May 31...................

Septj.30. ..................

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

Elevation 

(feet)t '

3,652.8

-

3,747.0

-

Contents 

(acre-feet)

111,500

-

250,900

-

. Change in contents 

during month 

(acre-feet)

-40,600

-22,700

-40,900

+15,500

t Elevation at 12 p.m.
250 TUOLUMNE RIVER BASIN

Tuolumne River near Hetch Hetchy, Calif.

Location.--Water-stage recorder, lat. SVSG', long. 1190 48', in SE£ sec. 17, T. IN., R. 

2TTE7, in Yosemlte 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 1950.

Average discharge. 35 years (1915-50), 971 second-feet.

Extremes. Maximum discharge during year, 10,700 second-feet June 15 (gage height, 13.15 

feet); minimum, 3.6 second-feet May 29.

1915-50: 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 Jan. 18, 1931.

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

goocT. Flow regulated by Hetch Hetchy Reservoir beginning in April 1923 (see preceding 

no diversion above station.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge. In second-feet)

1.0 9.0 3.7 118 5.3 540 7.5 1,330 10. O 3,570 

1.3 18 3.1 163 5.6 615 8.0 1.64O 10.5 4,350 

1.6 31 3.5 316 6.0 730 8.5 3,01O 11.0 5,390 

1.9 48 ~4.0 392 6.5 895 9.0 3,440 11.5 6,350 

3.3 79 4.6 400 7.0 1,090 9.5 2,930 13.0 7,570

Discharge, In second-feet, Mater year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

751 

748 

745 

743 

739

748 

751 

748 

754 

757

754 

751 

748 

745 

742

739 

739 

748 

751 

748

754 

754 

751 

748 

745

742 

748 

748 

745 

748 

751

Nov.

748 

745 

739 

754 

760

757 

751 

748 

745 

742

739 

733 

754 

766 

763

757 

754 

748 

742 

754

760 

754 

751 

745 

743

736 

730 

734 

721 

748

Dec.

757 

754 

745 

739 

733

748 

751 

745 

739 

730

748 

751 

745 

736 

745

760 

754 

754 

751 

748

744 

753 

762 

760 

758

756 

754 

753 

749 

747 

743

Jan.

747 

750 

745 

743 

736

729 

75O 

770 

764 

763

761 

754 

748 

745 

742

745 

763 

745 

745 

743

739 

736 

743 

739 

736

733 

730 

737 

737 

734 

721

Feb.

731 

745 

766 

773 

773

778 

769 

766 

763 

760

760 

757 

754 

751 

748

745 

742 

743 

739 

739

736 

733 

739 

751 

751

748 

748 

748

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 194S 

&x*y

.......................

ter year 1949-50 .......................

Mar.

745 

745 

745 

742 

742

743 

739 

739 

736 

733

730 

737 

724 

734 

721

745 

763 

760 

760 

760

757 

757 

757 

763 

760

757 

754 

754 

751 

754 

754

Apr.

757 

76O 

695 

760 

763

769 

775 

781 

787 

643

585 

605 

628 

628 

630

632 

635 

640 

646 

658

670 

682 

694 

626 

735

748 

769 

781 

787 

797

Secondfoot-days

33,183 

33,410 

33,212

395,500

23,040 

21,043 

33,140 

31,056 

23,362 

87,709 

34,409 

33,615 

21,711

346,889

Hote. Ho gage-height record Dec. 21 to Jan. 12, Aug. 

of unpublished records for station above Early Intake.

May

800 

781 

775 

781 

787

790 

790 

794 

794 

797

800 

781 

784 

804 

828

787 

784 

808 

832 

860

797 

742 

730 

745 

757

775 

781 

10 

470 

790 

808

Maximum

757 

766 

762

4,060

770 

778 

763 

797 

860 

7,310 

3,400 

745 

745

7,310

June

1,300 

2,900 

1,360 

5,310 

5,410

5,710 

3,970 

3,950 

3,6OO 

2,310

3,450 

3,380 

3,350 

3,420 

3,450

5,630 

6,060 

7,310 

3,990 

769

1,020 

1,800 

1,070 

2,110 

3,030

1,840 

1,750 

1,760 

1,850 

1,950

July

1,870 

1,780 

1,610 

1,940 

3,300

3,400 

3,710 

751 

751 

751

751 

748 

748 

748 

748

748 

748 

745 

745 

745

742 

742 

739 

736 

736

733 

730 

730 

730 

727 

727

Aug.

734 

721 

718 

718 

718

715 

713 

713 

730 

739

736 

736 

733 

733 

730

730 

727 

727 

724 

739

745 

743 

743 

739 

736

736 

733 

733 

730 

730 

737

Minimum Mean

739 748 

731 747 

730 749

560 810

731 743 

721 753 

721 746 

585 703 

10 754 

769 3,924 

737 1,110 

712 730 

706 724

10 950

Sept.

724 

724 

721 

721 

718

715 

715 

715 

713 

709

106 

718 

734 

724 

721

718 

718 

718 

721 

730

739 

736 

733 

730 

730

737 

727 

733 

739 

745

Runoff in 

acre-feet

45,980 

44,450 

46,040

586,100

45,700 

41,740 

45,900 

41,760 

46,340 

174,000 

68,350 

44,860 

43,060

688,100

29 to Sept. 30 j discharge computed on basis
TUOLUMNE RIVER BASIN 251

Don Pedro Reservoir near La Orange, Calif.

Location. Water-stage recorder, lat. 37°42'48", long. 120°24 l 14n , in SWi sec. 35, T. 2 S., 

K. J.4 E., at Don Pedro Dam on Tuolumne River, 1 mile downstream from Rogers Creek and 

5.5 miles upstream from La Orange. 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 1950 (1924-30, gage heights only).

Extremes. Maximum contents during year, 289,600 acre-feet July 7 (elevation, 605.3 feet); 

 minimum, 46,100 acre-feet Dec. 31 (elevation, 494.3 feet).

1924-50: 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; 

sT5?age began Nov. 14, 1922. 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 Orange 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 acrefeet (mutually agreed-upon minimum) is not available for release.

Cooperation. Water-stage recorder graph furnished by Turlock and Modesto Irrigation

Contents, In acre-feet, October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

O7E &O

24

25

26

27

28

29

VA

Ov

31

Oct.

69,300

68,300

67,700

66,400

65,400

64,200

 62,900

61,600

60,700

59,900

59,000

58,300

57,300

56,700

56,800

57,000

57,000

57,000

56,600

56,300

56,100

56,100

56,400

56,100

' 56,000

55,800

55,700

55,600

55,700

55,800

55,800

Nov.

55,400

55,200

54,900

54,500

54,400

54,500

54,000

53,800

53,400

54,100

54,900

55,200

55,600

55,600

55,700

55,700

55,700

55,700

56,000

56,300

56,100

56,100

56,100

56,600

56,600

57,000

57,200

57,200

57,100

57,000

-

Dec.

56,500

55,900

55,700

55,700

55,200

54,700

54,300

53,800

53,400

53,200

52,900

52,300

51,600

50,900

50,100

49,600

49,100

49,100

49,000

48,600

48,200

47,800

47,400

47,300

47,700

48,000

47,500

47,300

47,000

46,400

46,100

Jan.

47,300

48,000

48,200

48,400

48,800

49,500

50,200

51,100

51,900

52,500

53,400

54,200

54,900

56,300

57,400

58,300

67,700

72,400

75,700

78,100

80,800

83,700

88,700

91,500

94,000

95,700

97,400

102,200

105,300

107,300

109,100

Feb.

110,300

111,400

112,400

121,400

133,200

146,500

153,300

155,700

157,400

158,400

159,400

160,200

160,700

160,700

160,900

161,100

161,400

161,600

162,400

162,400

162,400

162,600

162,900

163,100

163,900

184,400

165,200

165,900

-

-

-

Mar.

166,200

166,400

166,700

166,900

167,200

167,800

168,400

169,000

169,500

169,700

170,200

170,500

170,700

170,500

170,200

169,200

163,400

168,700

168,200

170,000

170,500

170,200

169,500

173,600

179,000

182,200

184,600

187,000

188,100

188,900

188,900

Apr.

188,100

137,000

186,200

186,400

185,900

185,600

186,700

190,800

191,900

190,200

187,500

184,600

183,500

183,500

185,500

183,500

184,800

187,000

189,700

191,900

192,100

192,700

192,400

192,100

192,700

193,800

194,900

194,600

192,400

190,800

-

May

191,300

191 ,300

190,200

188,600

186,400

185,600

184,300

183,000

181,100

179,300

179,600

181,400

184,300

188,300

192,700

197,100

200,700

203,200

205,200

208,300

211,900

215,100

216,800

218,500

221,100

225,100

229,800

235,100

235,100

234,500

232,100

June

226,300

222,200

211,600

207,400

213,900

226,600

234,500

237,700

239,800

241,000

242,400

243,300

243,900

244,800

246,600

253,800

264,200

274,800

286,700

287,400

288,600

288,900

281,000

278,900

278,900

278,200

278,500

279,500

280,100

281,300

-

July

282,300

282,600

282,600

282,300

284,200

287,400

289,600

288,000

285,800

283-, 300

281,000

278,900

276,300

273,800

271,300

268,600

265,800

263,300

260,800

258,700

256,600

864,500

252,600

250,500

248,400

246,000

243,900

242,200

239,600

237,700

235,400

Aug.

233,300

231,000

228,900

226,600

224,300

222,000

219,400

217,100

214,500

211,900

209,400

207,100

205.200

202,600

200,100

197,600

194,900

192,400

190,200

187,800

185,400

183,000

180,300

177,700

175-100

172,500

170,000

167,200

164,400

181,400

158,700.

Sept.

156,000

153,300

151,300

148,900

146,200

143, SOO

141,200

138,400

136,000

133,700

130,900

128,200

125,500

122,800 120, ibo

117,700

115,800

113,000

110,800

108,700

106,700

104,700

102,800

101,500

98,900

96,800

14,700

92,200

90,000

88,200

Monthly elevation and contents, water year October, 1949 .to September 1950

Date

Dec . 31 .........;...........

Sept. 30.......... ...........

Elevation 

(feet)t

494.3

_

526.5

Contents 

(acre-feet)

46,100

88,200

Change in contents 

during month 

(acre-reet)

-14,600 

-10,900

+8,800

463,000

-70,500

t Elevation at 12 p.m.
252 TUOLUMNE RIVER BASIN

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

Location. Water-stage recorder, lat. 37°42'35", long. 120°24'45", in NE^ sec. 3, T. 3 

S., R. 14 E., 0.5 mile downstream from Don Pedro Dam, 3.5 miles upstream from La Grange 

Dam, and 5 miles upstream from La Grange. Altitude of gage, about 330 feet (from topographic map).

Drainage area. 1,540 square miles.

Records available.--March 1915 to September 1950. August 1895 to September 1917 at La 

urange Dam, a.5 miles downstream; records equivalent if flow of Yosemlte Power Co. , 

canal (abandoned In 1926) and Modesto and Turlock Canals is added to flow at -La Grange 

Dam.

Average discharge. 55 years (1895-1950), 2,535 second-feet, using 1895-1916 records of 

combined now of river and canals, and including Hetch Hetchy diversion to San Francisco.

Extremes. Maximum discharge during year, 9,610 second-feet June 2 (gage height, 15.06 

I'eet); minimum, 29 second-feet Jan. 3.

1895-1950: Maximum discharge, 60,300 second-feet Jan. 31, 1911 (gage height, 16.45 

feet at site at La Grange Dam, from graph constructed on basis of frequent gage readIngs), from rating curve extended above 18,000 second-feet; maximum gage height at 

present site, 29.6 feet Mar. 25, 1928; minimum discharge, 0.5 second-foot on many days 

in October and November 1931.

Remarks. Records excellent. Plow regulated by Don Pedro power plant, Don Pedro Reservoir 

(see preceding page), Hetch Hetchy Reservoir (see p. 249), and Lake Eleanor (see p. 256). 

A small amount of water Is uiverted above station for irrigation. Diversion through 

Heteh Hetchy aqueduct to San Francisco began Oct. 19, 1934; for present year It amounted 

to an average of 97 second-feet.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,360 

l.OOO 

1,460 

1,480 

1,470

'l,46O 

1,530 

1,490 

1,040 

1,250

1,260 

1,210 

1,190 

1,020 

662

532 

687 

764 

894 

856

822 

684 

505 

766 

782

796 

756 

730 

625 

475 

721

Nov.

866 

852 

859 

841 

730

515 

914 

856 

981 

828

731 

674 

512 

847 

854

833 

833 

817 

690 

520

8O5 

808 

813 

493 

752

698 

528 

805 

878 

921

Dec.

1,040 

1,120 

911 

639 

989

972 

1,O5O 

979 

933 

892

638 

1,080 

1.O80 

1,110 

1,130

1,030 

1,050 

657 

1,020 

1,110

1,010 

1,060 

1,000 

907 

536

588 

1,020 

976 

1,040 

1,080 

1,050

Jan.

179 

339 

595 

644 

557

450 

474 

254 

450 

606

493 

580 

634 

399 

242

660 

489 

417 

.471 

457

332 

138 

495 

465 

438

453 

575 

421 

244 

461 

483

Feb.

645 

592 

676 

63O 

336

546 

596 

1,190 

1,220 

1,460

1,500 

1,28O 

1,5OO 

1,580 

1,560

1,560 

1,570 

1,460 

1,280 

1,670

1,720 

1,580 

1,570 

1,560 

1,510

1,500 

1,560 

1,580

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 194E 

ary

.......................

St......................................

ter year 1949-50 .......................

Mar.

1,690 

1,710 

1,730 

1,690 

1,650

1,660 

1,360 

1,340 

1,340 

1,320

1,280 

1,120 

1,350 

1,360 

1,620

1,830 

1,830 

1,570 

1,780 

1,770

1>870 

2,190 

2,510 

2,220 

1,750

1,660 

1,690 

1,77O 

2,170 

2,490 

2,950

Apr.

3,280 

3,240 

3,320 

2,360 

3,310

3,280 

2,950 

3,480 

4,130 

4,4SO

4.52O 

4,530 

4,07O 

3,310 

3,OOO

2,940 

2,990 

3,050 

3,000 

3,810

4,980 

5,140 

5,140 

4,820 

4,570

4,530 

4,510 

4,990 

5,290 

4,780

Secondfoot -days

30,277 

23,054 

29,697

592,961

13,895 

35,431 

54,270 

118, 30O 

112,280 

117,590 

65.09O 

60,640 

53,610

714,134

May

4,040 

3,990 

3,900 

3,760 

3,780

3,310 

2,960 

3,130 

3,240 

3,270

2,830 

2,540 

2,540 

2,510 

2,96O

3,260 

3,750 

4,080 

4,070 

3,860

3,520 

4,070 

4,08O 

3,80O 

3,24O

3,220 

3,220 

2,980 

4,380 

5,360 

6,630

Maximum

1,530 

981 

1,130

4,500

660 

1,720 

2,950 

5,290 

6,630 

9,550 

2,540 

2,1OO 

2,O80

9,550

June

8,290 

9,55O 

9,520 

9,200 

5,360

2.68O 

2,880 

3,210 

3,210 

3,210

3.20O 

3,2OO 

3,200 

3,130 

3,120

2,580 

2,250 

2,260 

2,630 

2,560

2,230 

3,860 

6,570 

4,310 

3,120

3,130 

2,530 

2,200 

2,2OO 

2,200

July

2,200 

2,2OO 

2,200 

2,200 

2,200

2,210 

2,330 

2,540 

2,200 

2,180

2,200 

2,200 

2,200 

2,200 

2,210

2,200 

2,210 

2,080 

2,010 

1,920

1,930 

1,900 

1,840 

1,930 

1,910

1,940 

1,960 

1,960 

1,930 

1,890 

1,960

Minimum

475 

493 

536

168

138 

336 

1,120 

2,860 

2,510 

2,200 

1,840 

1,730 

1,300

138

Aug.

1,970 

1,980 

1,990 

1,960 

1,990

1,910 

- 2.O1O 

2.O20 

2,O1O 

2.O1O

1,950 

1,850 

1,730 

1,910 

1,950

1,960 

1,920 

1,940 

1,870 

1,760

1,860 

1,900 

1,930 

2,010 

2,060

1,980 

1,880 

2,O80 

2,O7O. 

2,080 

2,100

Mean

977 

768 

958

1,625

448 

1,265 

1,751 

3,943 

3,622 

3,92a 

2,100 

1,956 

1,787

1,957

Sept.

2,080 

1,890 

1,630 

1,69O 

1,920

1,890 

1,330 

1,880 

1,8OO 

1,670

1,960 

1,950 

1,960 

1,950 

1,890

1,790 1,690 * 

1,790 

1,870 

1,610

1,660 

1,690 

1,630 

1,300 

1,700

1,800 

1,810 

1,830 

1,760 

1,640

Runoff in 

acre-feet

6O,O50 

45,730 

58,900

1,176,000

27,560 

70,280 

107,600 

234,600 

222,700 

233,200 

129,100 

120,300 

106,300

1,416,000

Note. Discharge for periods Oct. 

in Turloek and Modeato Canals.

1-9, Mar. 15-27, June 14-21, June 25 to Sept. 3O is sum of flow
TUOLUMNE RIVER BASIH 253

Tuolumne River at Modesto, Calif.

Location.--Water-stage recorder, lat. 37°37"40", long. 120°59'20", in SW£ sec. 33, T. 3 

a., K. 9 E., at railroad bridge at Modesto, 0.3 mile downstream from Dry Creek. Datum 

of gage is mean sea level, unadjusted (levels by Modesto Irrigation District).

Records available.--1878-84, 1891-97 (gage heights only); October 1943 to September 1950. 

March I94U to December 1950 in reports of Division of Water Resources, Department of 

Public Works, State of California.

Extremes.--Maximum discharge during year, 6,720 second-feet June 3 (gage height, 50.29 

feet); minimum, 226 second-feet Sept. 6.

1943-50: Maximum discharge, 8,070 second-feet Feb. 5, 1945 (gage height, 51.32 

feet); minimum observed, 189 second-feet July 5, 1947.

Remarks.--Records fair. Flow regulated by reservoirs and power plants above station. 

Many diversions above station for irrigation. See "Remarks" for Tuolumne River above 

La Grange Dam, near La Grange.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

249 

240 

236 

244 

240

242 

339 

270 

257 

257

422 

685 

718 

854 

1,230

1,110 

799 

906 

1,05O 

1,200

1,200 

1,160 

1,020 

850 

1,030

1,110 

1,140 

1,120 

1,080 

962 

872

Nov.

910 

1,130 

1,170 

1,180 

1,170

1,070 

886 

1,130 

1,190 

1,280

1,130 

982. 

930 

826 

974

1,080 

1,O8O 

1,080 

1,070 

950

836 

950 

1,020 

1,060 

861

886 

946 

819 

998 

1,130

Dec.

1,280 

1,300 

1,370 

1,210 

946

1,140 

974 

974 

9OO 

906

889 

868 

862 

938 

978

982 

930 

926 

9O6 

918

942 

934 

918 

889 

994

787 

718 

872 

910 

889 

892

Jan.

864 

601 

543 

658 

67O

667 

661 

6O7 

526 

586

646 

661 

655 

685 

685

583 

787 

2,580 

1,54O 

872

787 

646 

540 

604 

628

625 

631 

760 

2,450 

1,120 

727

Feb.

634 

715 

700 

709 

942

1,350 

1.34O 

1,070 

1,360 

1,450

1,690 

1,960 

1,570 

1,720 

1,290

1,040 

l.OOO 

998 

882 

906

1,660 

1,860 

1,710 

1,720 

1,710

1,650 

1,600 

1,270

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

Mar.

1,210 

1,310 

1,340 

1,330 

1,160

1,040 

1,050 

784 

769 

769

640 

427 

369 

389 

476

4O5 

324 

336 

342 

377

392 

390 

384 

655 

802

812 

655 

575 

589 

1,250 

1,670

Apr.

2,250 

2,520 

2,400 

2,470 

1,650

2,380 

1,890 

1,920 

2,940 

3,280

3,770 

3,79O 

3,640 

3,160 

2,490

2,220 

2,O80 

2,120 

1,760 

1,630

2,540 

3,420 

3,340 

3,120 

2,640

2,010 

1,840 

1,650 

2,120 

2,240

Secondfoot -days

23,092 

30,724 

30,042

240,702

25,595 

36,506 

23,021 

75,280 

30,499 

50,614 

9,273 

8,393 

7,934

350,973

May

1,600 

1,140 

1,020 

990 

854

836 

649 

520 

468 

583

6O4 

534 

408 

395 

374

520 

769 

1,290 

1,520 

1,480

1,400 

1,200 

1,520 

1,440 

1,140

739 

661 

569 

476 

1,840 

2,960

Maximum

1,230 

1,280 

1,370

2,360

2,580 

1,960 

jl.670 

3,790 

2,960 

6,690 

352 

314 

288

6,690

June

4,320 

5,960 

6,690 

6,690 

5,920

2,320 

1,270 

1,110 

1,010 

990

978 

95O 

903 

670 

451

411 

430 

 390 

372 

366

356 

356 

1,400 

3,140 

1,230

501 

411 

356 

339 

324

July

324 

339 

352 

295 

300

314 

293 

291 

298 

295

282 

295 

298 

300 

291

305 

298 

295 

279 

282

291 

288 

310 

314 

298

298 

298 

300 

284 

275 

291

Minimum

236 

819 

718

218

526 

634 

324 

1,630 

374 

324 

275 

236 

240

236

Aug.

295 

295 

286 

295 

298

314 

300 

286 

275 

277

275 

266 

286 

293 

270

259 

257 

262 

262 

268

262 

264 

259 

262 

244

253 

253 

257 

236 

242 

242

Mean

745 

1,024 

969

659

826 

1,304 

743 

2,509 

984 

1,687 

299 

271 

264

962

Sept.

249 

262 

244 

240 

259

249 

249 

251 

255 

262

275 

284 

282 

275 

279

275 

277 

288 

275 

282

284 

273 

275 

266 

251

257 

244 

251 

257 

264

Runoff in 

acre-feet

45i 800 

60,940 

59,590

477,400

50,77O 

72,^10 

45,660 

149,300 

60,490 

100,400 

1B,390 

16,650 

15,740

696,100
254 TUOLUMNE RIVER BASIN

Falls Creek near Hetch Hetchy, Calif.

Location. Water-stage recorder, lat. 37°58', long. 1190 46', in NE£ sec. 3, T. 1 N., R.

 HO1 K., in Yosemite National Park, 0.2 mile upstream from Wampana Falls, 1 mile upstream 

from mouth, and 2 miles northeast of Hetch Hetchy, Altitude of gage, about 5,600 feet 

(from topographic map).

Drainage area. 45.2 square miles.

Kecoras available.--November 1915 to September 1950.

Average di3charge. 34 years (1916-50), 139 second-feet.

Extremes. Maximum discharge during year, 1,300 second-feet June 1 (gage height, 6.05 feet);

 no flow Oct. 1 to Nov. 9.

1915-50: 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 many summers. 

Remarks. Records good. No storage or diversion. 

Revisions (water years).. W 531: 1917(M). W 931: 1938.

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used July 3 to Sept. 30)

1.35 0.0 2.2 4.6 3.9 220 

1.4 .1 2.4 9.5 4.2 307 

1.5 .2 2.6 17 4.5 409 

1.6 .3 2.8 28 5.0 605 

1.7 .5 3.0 45 5.3 760 

1.8 .8 3.3 88 5.6 955 

2.0 2.1 3.6 '14S 5.8 1,10O

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

26 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

3.4

6.0 

6.8 

8.2 

12

15

15 

14 

12 

11 

11

11 

10 

10 

10 

12

16 

16 

15

16 

15

Dec.

14 

12 

10 

9.2 

8.1

7.3 

6.4 

6.0 

5.8 

5.4

4.8 

4.1 

3.8 

3.6 

3.5

3.8 

4.8 

8.2 

14 

8.4

9.2 

15 

18 

17 

16

16 

16 

16 

16 

15 

13

Jan.

12 

12 

12 

12 

11

11 

10 

11 

14 

14

17 

18 

18 

23 

22

29 

318 

179 

98 

83

110 

117 

157 

99 

70

74 

52 

54 

44 

44 

47

Feb.

59 

48 

38 

82 

71

90 

59 

55

49 

54

54 

48 

50 

55 

64

68 

65 

71 

78 

78

73 

76 

83 

92 

103

118 

119 

109

Month

Octo 

Hove 

Decs

Ca

Janu 

Pebr 

Hare 

Aprl

Mau

June 

July 

Augu 

Sept

Wa

 her. ...................................

nber. ............................... - -

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

101 

90 

92 

110 

117

94 

81 

74 

59 

52

50 

49 

44 

43 

42

46 

67 

59 

197 

132

90 

134 

92 

85 

85

71 

73 

81 

97 

127 

152

Apr.

Secondfoot-days

0 

245.4 

310.4

39,899.9

1,792 

2,O09 

2,686 

9,453 

16,750 

14,806 

2,650 

142.6 

16.3

50,860.7

172 

197 

210 

234 

256

256 

220 

166

144 

131

140 

155 

150 

129 

148

189 

236 

285 356'

441

525 

570 

561 

525 

533

557 

570 

525 

438 

434

Hay

445 

326 

231 

1S4 

182

168 

133 

119 

121 

150

220 

317 

438 

587 

680

744 

754 

695 

650 

738

772 

772 

727 

605 

630

859 

878 

913 

808 

934 

970

Maximum

0 

16 

18

950

318 

119 

197 

570 

970 

1,070 

279 

12 

.9

1,O70

June

1,070 

970 

852 

727 

738

802 

445 

267 

301 

329

416 

282 

317 

398 

460

525 

510 

498 

506 

579

650 

583 

502 

405 

292

264 

262 

264 

288 

304

July

279 

256 

223 

194 

166

142 

135 

123 

111 

96

113 

107 

96 

81 

71

59 

50 

43 

38 

33

30 

27 

26 

24 

23

21 

20 

18 

17 

15 

13

Aug.

12 

12 

11 

10 

9.5

8.7 

7.5 

6.4 

5.6 

5.0

4.6 

4.4 

4.1 

3.8 

3.8

'3.5 

3.1 

2.9 

2.7 

2.5

2.4 

2.3 

2.2 

2.0 

1.9

1.9 

1.7 

1.5 

1.4 

1.2 

1.0

Sept.

0.9 

.8 

.7 

.6 

.5

.5 

.4 

.5 

.5 

.4

.4 

.4

.5 

.6 

.7

.7 

.7 

.8 

.8 

.7

.6 

.6 

.5 

.5 

.4

.4

.4 

.3 

.3 

.2

Hini . Hean *£«£

00 0 

0 8.18 487 

3.5 10.0 616

0 109 79,160

10 57.8 3,550 

38 71.8 3,980 

42 86.6 - 5,330 

129 315 18,750 

119 540 33,220 

262 494 29,370 

13 85.5 5,260 

1.0 4.60 283 

.2 .54 32

0 139 100,900

Peak discharge (base. 755 sec.-ft.). June 1 (7 a.m.) l,3oo sec.-ft.j June 21 (10 a.m.) 766 sec.-ft.
TUOLUMNE RIVER BASIN 255

Cherry Creek near Hetch Hetchy, Calif.

Location.--Water-stage recorder, lat. 38°00 l ,long. 119°54', in SWi sec. 28, T. 2 H., R. 

13 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. 111 square miles.

Records available. April 1910 to September 1950.

Average discharge. 40 years, 364 second-feet.

Extremes.--Maximum discharge during year, 3,360 second-feet May 31 (gage height, 8.28 

reetj; minimum, 1.7 second-feet Nov. 6, 7.

1910-50: 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 5 small reservoirs 

(total capacity, 2,990 acre-feet) has increased normal summer flow since 1931.

Rating table, water year 1949|-50 (gage height, In feet,

and discharge, In second-feet) 

(Backwater from moss on control Oct. 14 to Nov. s)

' 0.9 1.5 1.5 24 2.1 96 4.0 850 

1.0 2.8 1.7 39 2.2 124 5.O 1,320 

1.1 5.3 1.8 4S 2.4 194 6.0 1,880 

1.2 9.1 1.9 60 2.7 343 7.0 2,490 

1.4 18 2.0 76i 3.4 610

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

5.3 

5.0 

5.0 

4.6 

4.3

4.3 

4.0 

5.0 

4.6 

5.0

11 

7.5 

5.3 

4.0 

3.6

3.4 

3.0 

2.8 

2.8 

2.8

2.8 

2.8 

2.8 

2.8 

2.8

2.7 

2.5 

2.3 

2.3 2.2' 

2.1

Nov.

2.1 

1.9 

1.9 

1.9 

1.8

1.7 

1.7 

4.2 

107 

131

90 

94 

96 

94 

82

 84:

73 

73 

71 

63

56 

54 

50 

55 

78

66 

49 

58 

55 

47

Dec.

41 

32 

27 

23 

21

20 

18 

20 

18 

16

13 

11 

12 

13 

13

16 

20 

23 

29 

38

53 

56 

59 

59 

52

56 

60 

71 

70 

55 

45

Jan.

43 

37 

37 

40 

36

34 

36 

35 

41 

54

50 

63 

63 

56 

65

88 

776 

704 

522 

397

445 

441 

531 

254 

172

1S4 

121 

121 

118 

113 

107

Feb.

104 

104 

99 

355 

276

454 

212 

162 

138 

165

169 

144 

151 

172 

207

207 

194 

220 

244 

234

229 

244 

254 

288 

338

377 

385 

351

Month

Octo 

Hove

Beee

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194E .......................

ter year 1949-50 .......................

Peak discharge (base. 2.400 sec . -f t . ) . Ma

sec. -ft. i Hay Z7 {9 p.m.) 3, 230 sec. -ft.; Ms 

2,610 sec. -ft.

Mar.

318 

2S8 

303 

381 

401

288 

244 

229 

187 

165

169 

144 

151 

151 

148

169 

271 

194 

507 

334

244 

440 

260 

238 

225

212 

203 

244 

308 

399 

480

Apr.

550 

658 

718 

806 

798

686 

589 

417 

389 

377

403 

469 

525 

368 

389

591 

762 

912 

1,140 

1,280

1,460 

1,530 

1,350 

1,330 

1,400

1,510 

1,520 

1,320 

1,1*0 

1,170

Secondfoot -days

121.4 

1,643.2 

1,060

108,136.1

5,784 

6,477 

8,295 

26,557 

45,169 

33,900 

4,713 

364.6 

227.9

134,332.1

May

1,160 

790 

561 

464 

467

460 

356 

303 

365 

538

815 

1,100 

1,410 

1,740 

1,800

1,960 

1,960 

1,750 

1,810 

1,990

2,110 

2,050 

1,870 

1,610 

1,770

2,210 

2,450 

2,180 

2,250 

2,590 

2,460

Maximum

11 

131 

71

2,380

776 

454 

507 

1,530 

2,480 

2,460 

550, 

20

_2,480i

June

2,460 

2, ISO 

1,920 

1,780 

1,920

1,680 

896 

592 

789 

935

9S9 

678 

842 

948 

1,200

1,200 

1,160 

1,100 

1,180 

1,360

1,420 

1,220 

1,090 

874 

626

5 552 

540 

544 

600 

614 j

July

550 

495 

429 

377 

313

254 

249 

207 

183 

165

151 

162 

162 

134 

116

99 

84 

73 

65 

58

52 

47 

44 

40 

37

34 

32 

29 

26 

24 

22

Aug.

20 

18 

18 

IS 

16

16 

16 

16 

14 

14

14 

13 

13 

14 

12

12 

12 

11 

11 

10

10 

9.5 

9.1 

9.1 

9.1

8.7 

8.7 

8.7 

8.3 

7.9 

7.5

Minimum Mean

2.1 S.92 

1.7 54.8 

. 11 34.2 '

1.7 296

34 187 

99 231 

144 268 

368 885 

303, 1,457 

540 1,130 

22 152 

7.5 12.4 

6.0 7.60

1.7 368

Sept.

7.1 

6.7 

6.7 

6.4 

6.7

6.4 

6.7 

7.5 

8.3 

7.9

9.5 

8.7 

8.3 

7.9 

7.5

7.5 

7.5 

9.5 

11 

10

8.7 

7.9 

7.5 

7.1 

6.7

6.7 

6.7 

6.4 

6.4 

6.0

Runoff In 

acre-feet

241 

3,260 

2,100

214,500

J.1,470 

12,650 

16,450 

52,680 

89,590 

67,240 

9,350 

763 

452

266,400

y 16 (10 p.m.) 2,640 sec. -ft.} May 21 (9 p.m.) 2,870 

y 31 (10 p.m.) 3,360 sec. -ft.; June 5 (lOtSO p.m.;
256 TUOLUMHE RIVER BASIN

Lake Eleanor near Hetch Hetchy, Calif.

Location. Water-stage recorder, lat. 37°58' , long. 119°53' , in NW£ sec. 3, T. IN., R.

 19 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 1950 (1919-30, gage heights only).

Extremes. Maximum contents during year, 27,100 acre-feet June 21 (elevation, 4,&61.0

 feet); minimum, 26 acre-feet Nov. 30 (elevation, 4,616.7 feet).

1919-50: 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

 Z7TT.918. 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.

Contents, In acre-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3,300

2,960

2,620

2,300

1,960

1,620

1,190

590

250

590

 640

550

460

370

260

210

150

120

110

120

120

120

110

100

100

110

100

100

90

80

80

Nov.

70

70

60

60

50

50

50

50

50

80

180

250

260

280

330

370

420

460

500

550

550

590

550

550

550

460

420

330

70

40

-

Dec.

80

420

460

370

330

280

260

250

210

170

120

150

250

250

250

250

260

280

230

170

120

120

110

110

110

120

150

180

120

100

100

Jan.

120

120

120

120

120

230

180

150

150

170

250

330

42O

500

590

820

1,620

2,350

2,960

3,520

4,080

4,650

5,820

6,440

6,710

6,990

7,260

7,470

7,680

7,810

7,810

Feb.

7,880

7,880

7,950

8,360

8,790

9,74O

9,900

9,900

10,100

10,300

10,500

10,600

10,700

10,900

11,000

11,300

11,500

11,600

11,900

12,200

12,400

12,600

12 , 900

13,200

13,600

14,100

14,500

14,800

_

_

-

Mar.

15,200

15 , 500

15,900

16,200

16,600

17,000

17,200

17,300

17,500

17 , 600

17,700

17,800

17 , 900

17,900

18,000

18,000

18,200

18,400

19,200

19,800

20,100

20,900

21,200

21,200

21,000

20,500

20,000

19,500

19,100

18,800

18,700

Apr.

19,500

20,500

21,600

22,800

23,800

24,200

24,400

24,300

24,200

24,200

24,200

24,200

24,200

24,200

24,200

24,400

24,600

24,800

25,000

25,100

25,100

25,100

25,000

24,900

24,900

25,000

25,000

24,800

24,800

24,800

-

May

24,700

24,600

24,400

24,300

24,300

24,300

24,200

24,100

24,200

24,30O

24,500

2 4', 600

24,600

24,900

25,000

25,000

25,000

24,800

24,800

24,900

25,000

24,900

24,800

24,700

24,600

24,800

24,800

24,800

24,800

24,800

24,800

June

24,800

24,700

24,600

24,500

24,500

24,300

24,100

23,900

24,000

24,300

24,800

25,200

25,600

26,100

26,600

27,000

26,900

26,900

26,900

27,000

27,000

26,900

26,800

26,700

26,600

26,400

26,400

26,400

26,500

26,600

-

July

26,600

26,800

27,000

27,000

27,000

27,000

27,000

26,900

26,800

26,800

26,800

26,800

26,800

26,800

26,800

26,800

26,700

26,600

26,500

26,400

26-,300

26,200

26,100

26,000

25,900

25,700

25,500

25,300

25,100

24,900

24,800

Aug.

24,600

24,400

24,200

24,000

23,800

23,500

23,400

23,200

22 , 900

22,700

22,500

22,200

22,100

21,900

21,600

21,400

21,200

21,000

20,800

20,600

20,300

20,100

19,900

19,600

19,400

19,100

19,000

18,700

18,500

18,200

18,000

Sept.

17,800

17,500

17,300

17,100

16,900

16,700

16,600

16,400

16,200

16,000

15,800

15,600

15,300

15,100

14,800

14,600

14,300

14,100

14,000

13,700

13,500

13,300

13,000

12,800

12,600

12,400

12,100

11,900

11,600

11,300

-

Note. Computed from graph based on gage readings Jan. 2 to Feb. 14, May 1^1-17.

Monthly elevation and contents, water year October 1949 to September 1950

Date

Sept. 30. .. ...............

Oct. 31. ........... .....

Nov. 30. ............. ...

Dee. 31. .................

Calendar year 1949..... 

Jan. 31.. ................

Feb. 28.........". ........

Mar. 31..................

Apr. 30. .............. ..

May 31. .................

July 31..................

Aug. 31..................

Sept. 30. .................

Water year 1949-50. ....

Elevation 

(feet)t

4,632.0 

4,623.6 

4,620.9 

4,624.2

-

4,638.7 

4,647.5 

4,651.9 

4,658.5 

4,658.6 

4,660.5 

4,658.5 

4,651.1 

4,643.3

-

Contents 

(acre-feet)

3,580 

80 

40 

100

-

7,810 

14,800 

18,700 

24,800 ' 

24,800 

26,600 

24,800 

18,000 

11,300

-

Change in contents 

during month 

(acre-feet)

-3,500 

-40

+60

-

+7,710 

+6,990 

+3,900 

+6,100 

0 

+1,800 

-1,800 

-6,800 

-6,700

+7,720

t Elevation at 12 p.m.
TUOLUMNE RIVER BASIN 257

Eleanor Creek near Hetch Hetchy, Calif.

Location. Water-stage recorder and concrete control, lat. 37°58', long. 119°53", in SW£ 

sec. 3, T. 1 N., 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 1950. June to October 1901 and November 

J.9U9 to November 1915 at site 1 mile upstream.

Average discharge.--40 years (1910-50), 217 second-feet.

Extremes.--Maximum discharge during year, 1,090 second-feet May 17 (gage height, 5.36 feet); 

minimum, 1.6 second-feet Nov. 30.

1909-50: Maximum discharge, 10,50t) second-feet Dec. 11, 1937 (gage height, 13.95 

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

studies; no flow at times during 1910, 1930, 1931, 1933.

Remarks. Records excellent. No diversion. Plow regulated by Lake Eleanor beginning in 

19J.B (see preceding

Rating table, water year 1949-So (gage height, in feet, 

and discharge, in second-feet)

1.4 5.0 1.9 21 2.6 81 3.8 333 

1.5 '7.3 2.0 26 2.8 107 4.1 450 

1.6 10 2.1 32 3.0 136 4.5 635 

1.7 13 2.2 40 3.2 173 4.9 835 

1.8 17 2.4 59 3.5 242 5.3 1,060

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

141 

143 

143 

141 

141

141 

141 

141 

117 

69

31 

34 

34 

31 

30

29 

26 

23 

19 

14

14 

14 

12 

12 

9.5

8.6 

8.9 

6.9 

6.9 

8.6 

8.4

Nov.

8.4 

S.I 

7.8 

7.6 

7.1

6.8 

6.6 

6.6 

8.9

11

11 

11 

11 

11 

11

11 

11 

11 

11 

10

10 

10 

20 

25 

25

32 

36 

36 

57 

48

Dec.

22 

11 

11 

16 

23

23 

22 

22 

22 

22

22 

16 

9.7 

9.7 

9.5

9.5 

9.7 

10 

18 

25

25 

24 

24 

24 

24

25 

25 

25 

32 

31 

30

Jan.

30 

30 

30 

30 

30

23 

27 

30 

30 

30

30 

30 

31 

31 

31

32 

35 

3S 

36 

37

38 

38 

40 

36 

36

35 

35 

36 

35 

44 

61

Feb.

70 

77 

79 

83 

81

85 

82 

82 

82 

82

83 

83 

83 

83 

83

85 

85 

83 

83 

83

83 

83 

83 

83 

83

82 

82 

82

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Na

raber. ...................................

lendar year 194E

ter year 1949-50 .......................

Mar.

83 

85 

86 

87 

87

87 

87 

87 

88 

88

88 

87 

87 

87 

87

87 

87 

88 

91 

91

91 

91 

91 

376 

513

486 

472 

477 

468 

468 

439

Apr.

57 

9.7 9.7,1 

12 '. 

64 

344 

522 

540 

438 

352

326 

348 

414 

374 

340

402 

536 

645 

780 

906

989 

1,020 

923 

852 

874

906 

934 

874 

755 

720

Secondf cot-days

1,702'. 5 

486.9 

622.1

58,100.8

1,052 

2,298 

5,717 

16,266.4 

22,642 

10,586 

2,519 

3,453 

3,327

70,874.2

May

755 

685 

544

: 4Sa

f 366

378 

340 

294 

276 

313

422 

562 

725 

874 

956

1,030 

1,040 

962 

901 

962

978 

994 

896 

810 

770

879 

956 

972 

879 

923 

950

Maximum

143 

57 

32

1,340

61 

65 

513 

1,020 

1,040 

962 

179 

119 

153

1,040

June

962 

901 

785 

690 

650

650 

500 

352 

288 

114

29 

32 

38 

41 

45

187 

394 

363 

352 

370

414 

418 

378 

333 

285

229 

200 

193 

193 

202

July

179 

89 

72 

103 

118

108 

100 

93 

85 

79

72 

' 66 

59 

54 

48

44 

40 

49 

57 

62

67 

73 

79 

82 

82

86 

91 

92 

92 

97 

101

Minimum

8.4 

6.6 

9.5

6.6

23 

70 

83 

9.7 

276 

29 

40 

100 

64

6.6

Aug.

101 

103 

101 

100 

100

107 

108 

110 

112 

113

113 

113 

113 

113 

112

112 

112 

110 

110 

110

112 

112 

112 

112 

118

119 

119 

119 

119 

119 

119

Mean

54.9 

16.2 

20.1

159

33.9 

82.1 

184 

542 

737 

353 

61.3 

111 

111

194

Sept.

119 

119 

119 

86 

64

72 

72 

110 

120 

120

82 

72 

110 

153 

130

116 

118 

119 

119 

118

118 

116 

116 

116 

116

114 

114 

114 

127 

138

Runoff in 

acre -feet

3,380 

966 

1,230

115,300

2,090 

4,560 

11,340 

32,260 

45,310 

21,000 

5,000 

6,850 

6,600

140,600
258 TUOLUMNE RIVER BASIN 

South Pork Tuolumne River near Oakland Recreation Camp, Calif.

Location. Water-stage recorder, lat. 37°49', long 120°00', in SE£ sec. 29, T. 1 S., R.

 IH K., 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 2,800 feet (from topographic map).

Drainage area. 87.6 square milss.

Records available. March 1923 to September 1950.

Average discharge. 27 years, 89.0 second-feet.

Extremes. Maximum discharge during year, 713 second-feet Feb. 4 or 6 (gage height, 4.66 

reet); minimum, 4.5 second-feet Dec. 11.

1923-50: Maximum discharge, 6,950 second-feet Dec. 11, 1937 (gage height, 10.00 

feet), from rating curve extended above 1,000 second-feet on basis of velocity-area 

studies; minimum, 0.3 second-foot Aug. 23, 1934.

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

No storage or diversion.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

0.8 

.9

1.0

1.1

1.2 

1.4

5.3

6.6

8.0

9.6

12

16

1.5

1.7

1.8

1.9 

2.1 

2.3

2.5 

2.8 

3.2 

3.6 

4.0

93

132

195

280

400

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.3 

7.2 

7.0 

6.9 

6.9

7.0 

7.6 

8.2 

S.8 

9.3

9.3 

9.0 

8.6 

8.2 

7.9

7.6 

7.6 

7.6 

8.3 

9.3

9.8 

10 

9.8 

9.6 

9.4

9.3 

9.1 

9.0 

8.8 

8.6 

8.6

Nov.

8.5 

8.3 

8.2 

8.2 

8.2

8.2 

8.5 

12 

40 

92

28 

19 

17 

16 

15

15 

14 

14 

13 

13

13 

13 

13 

12 

13

13 

13 

12 

13 

13

Dec.

13 

12 

12 

12 

12

12 '12 

13 

13 

13

7.8

11 

12 

13 

13

13 16 ' 

28 

27 

15

16 

16 

15 

15 

14

14 

14 

14 

14 

14 

15

Jan.

14 

14 

11 

15 

12

14 

14 15' 

14 

14

15 

15 

15 

14 

14

21 

113 

92 

71 

62

70 

' 73 

131 

128 

a45

a33 

a40 

a70 

a50 

a37 

a32

Feb.

a30 

a28 

a30 

a280 

a250

a370 

also 

al30 

95 

89

94 

7S 

70 

69 

a70

a72 

a72 

a72 

a72 

a74

a72 

a72 

a72 

a72 

76

84 

86 

83

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

lendar year 1949

h. ......................................

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

Peak discharge (base, 374 sec. -ft.). Feb.

a Mo gage-height record; discharge computei 

and records for Middle Tuolumne River.

Mar.

79 

74 

74 

76 

84

78 

70 

67 

63 

59

59 

55 

53 

51 

50

49 

59 

60 

69 

92

74 

95 

91 

155 

126

104 

98 

103 

108 

114 

129

Apr.

135 

147 

150 

154 

165

159 

181 

199 

181 

175

186 

204 

223 

192 

181

200 

227 

240 

260 

272

282 

278 

260 

260 

268

272 

265 

242 

 219

" 221

Secondfoot -days

261.6 

494.1 

440.8

21,368.7

1,278 

2,344 

2,518 

6,398 

6,297 

2,279 

581 

297.8 

255.0

23,924.3

May

237 

199 

181 

162 

159

156 

147 

135 

131 

138

156 

156 

168 

199 

225

245 

248 

244 

246 

259

264 

242 

223 

223 

229

236 

229 

220 

218 

216 

206

Maximum

10 

92 

28

348

131 

370 

155 

282 

264 

191 

29 

13 

11

370

June

191 

172 

14S 

136 

129

117 

98 

86 

85 

78

80 

72 

71 

68 

66

64 

61 

58 

56 

54

50 

47 

44 

42 

39

37 

35 

33 

32 

30

July

29 

28 

2,6 

25 

24

23 

22 

22 

21 

22

22 

21 

21 

19 

18

18 

17 

17 

17 

16

16 

15 

15 

15 

14

14 

13 

13 

13 

13 

12

Aug.

12 

13 

13 

12 

12

12 

12 

11 

11 

11

11 

11 

10 

10 

9

9 

9 '8 

8 

8

7 

7 

7 

8 

8

8 

7 

7 

7 

6 

6

Minimum Mean

6.9 8.44 

8.2 16.5 

7.8 14.2

5.7 58.5

11 41.2 

28 102 

49 81.2 

135 213 

131 203 

30 76.0 

12 18.7 

6.6 9.61 

6.1 7.83

6.1 65.5

.8

.4 

.0 

.6 

.3 

.0

.9 

.7 

.9 

.0 

.2

.0 

.9 

.6 

.2 

.7 

.6

Sept.

6.3 

6.3 

6.1 

6.2

6.1

6.1 

6.7 

8.2 

8.0 

8.0

8.2 

8.0 

7.9 

7.7 

7.7

8.0 

9.1 

11 

11 

9.8

9.0 

8.5 

8.0 

7.9 

7.6

7.7 

7.6 

7.6 

7.4 

7.3

Runoff In 

acre-feet

519 

980 

874

42,380

2,530 

5,6*0 

4,990 

12,690 

12,490 

4,520 

1,150 

591 

466

47,440

4 or 6 (time unknown) 713 sec. -ft. 

1 on basis of recorded range In stage, weather records,
TUOLOMNE RIVER BASIN 259

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. 

IB ii., at Oakland Recreation Camp, 0.5 mile upstream from South Fork Tuolumne River and 

4 miles east of Buck Meadows post office. Altitude of gage, about 2,800 feet (from 

topographic map).

Drainage area. 71.0 square miles.

Records available. November 1916 to September 1.950.

Average discharge. 33 years (1917-50), 70.7 second-feet.

Extremes. Maximum discharge during year, 578 second-feet May 27 (gage height, 5.09 feet); 

minimum, 0.4 second-foot Sept. 27.

1917-50: Maximum discharge, 2,910 second-feet Dec. 11, 1937 (gage height, 10.4 feet, 

from floodmarks), from rating curve extended above 1,000 second-feet on basis of velocity-area studies; no flow Sept. 4-14, 1924, Aug. 12 to Oct. 5 1931, Sept. 11-17, 1934.

Remarks. Records good. Small diversion above station for irrigation.

Rating table, water year 1949-50 (gage height, in feet, 

, and discharge in second-feet) 

IShifting-control method used Oct. 7 to Nov. 4, June 2O to Sept. 10, Sept. 23-30)

0.6 0.6 1.2 7.1 2.0 35 3.6 23O 

.7 1.3 1.3 8.8 2.2 46 4.0 315 

.8 2.4 1.4 11 2.5 68 4.3 3B2 

.9 3.4 1.5 14 2.8 95 4.5 43O 

1.0 4.6 1.6 17 3.0 122 

1.1 5.8 1.8 25 3.3 173

Discharge, In second-feet, water year October 1949 to September 1950

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.

1.2 

1.2 1.1 ' 

1.1 

1.0

1.0 

1.0 

1.2 

1.5 

1.4

2.0 

2.0 

2.0 

1.8

1.7

1.5 

1.5 

1.8 

1.9 

1.9

1.9 

2.1 

2.2 

2.4 

2.4

2.4 

2.2 

2.0 

2.0 

1.9 

1.9

Nov.

1.9 

1.8 

1.8 

1.8 

1.4

1.5 

2.4 

3.2 

7.7 

17

7.4 

4.7 

4.4 

4.3 

4.1

3.9 

3.8 

3.7 

3.6 

3.6

3.4 

3.6 

3.4 

3.6 

3.6

3.9 

4.1 

4.0 

4.0 

4.0

Dec.

3.9 

3.8 

3.4 

3.3 

3.1

3.2 

3.2 

3.4 

3.4 

3.3

2.1 

2.0 

2.4 

2.5 

2.8

3.3 

4.1 

7.8 

- 7.3 

3.5

3.9 

4.1 

4.0 

3.9 

3.7

3.7 

3.7 

3.8 

3.8 

3.8 

3.6

Jan.

3.7 

3.9 

3.3 

4.0 

3.8

3.8 

3.9 

4.6 

4.6 

4.7

5.2 

5.3 

4.8 

5.2 

5.1

8.7 

111 

44 

30

31

34- 

32 

50 

50 

24

15 

18 

31 

23 

17 

15

Peb.

13 

13 

14 

174 

112

181 

74 

48

36 

30 

27 

26 

27

28 

28 

28 

28 

29

28 

28 

28 

28 

30

33 

35 

34

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1949 

ai*y

uary . "^

ter year 1949-50 .......................

Mar.

34 

32 

32 

34 

38

35 

33 

32 

30 

2B

28 

23 

26 

26 

24

24 

30 

30 

35 

64

47 

54 

54 

89 

69

61 

54 

55 

57 

58 

62

Apr.

63 

73 

79 

83 

92

97 

108 

138 

108 

101

103 

10B 

119 

99 

92

10O 

116 

138 

168 

200

230 

242 

236 

238 

256

275 

286 

271 

242 

250

Secondfoot -days

53.2 

121.6 

113.8

16,995.0

599.6 

1,230 

1,298 

4,711 

8,700 

3,614 

432.3 

78.7 

40.3

20,992.5

Bay

265 

208 

182 

157 

148

146 

138 

127 

122 

132

152 

 160 

195 

240 

280

330 

355 

348 

348 

382

408 

380 

350 

370 

380

411 

418 

396 

392 

396 

384

Maximum

2.4 

17 

7.8

471

111 

181 

89 

286 

418 

364 

30 

4.4 

2.9

418

June

364 

326 

278 

252 

234

208 

160 

140 

136 

120

119 

105 

103 

108 

100

93 

88 

80 

74 

7O

64 

56 

54 

51 

46

42 

40 

37 

34 

32

July

30 

28 

25 

23 

22

20 

20 

18 

18 

18

20 

19 

17 

15 

13

12 

11 

11 

10 

10

8.8 

8.5 

7.6 

7.4 

7.0

6.6 

6.0 

5.5 

5.3 

4.9 

4.7

Aug.

4.4 

4.3 

4.1 

3.9 

3.8

3.8 

4.0 

3.2 

3.4 

3.2

3.2 

3.0 

2.9 

2.8 

2.7

2.6 

2.6 

2.1 

1.9 

1.9

1.8 

1.6 

1.5 

1.5 

1.2

1.3 

1.7 

1.3 

1.3 

1.0 

.7

Sept.

0.6 

.6 

.6 

.6

1.1

1.2 

.9 

1.0 

1.2 

2.4

1.3 

1.1 

1.1 

1.0 

1.0

1.0 

1.3 

1.8 

2.2 

2.9

2.9

2.1 

1.7 

1.4 

1.4

1.3 

.9 

1.3 

1.3 

1.1

Minimum Mean «-£*.£

1.0 1.72 106 

1.4 4.05 241 

2.0 3.67 226

.7 46.6 33,710

3.3 19.3 1,190 

13 43.9 2,440 

23 41.9 2,570 

63 157 9,340 

122 281 17,260 

32 120 7,170 

4.7 13.9 857 

.7 2.54 156 

.6 1.34 80

.6 57.5 41,640

Peak discharge (base. 570 see.-ft.) . May 27 (11 p.m.) C78 sec.-ft.
260 TUOLUMNE RIVER BASIN

Woods Creek near Jacksonville, Calif.

Location. Water-stage recorder, lat. 37°51', long. 120°24', in Sw£ sec. 12, T. IS., R. 

I4E7, 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 1950.

Average discharge. 25 years, 58.7 aecond-feet.

Extremes.--Maximum discharge during year, 2,780 second-feet Feb. 4 (gage height, 9.80 

TeetT. from rating curve extended above 750 second-feet on basis of velocity-area 

studies; no flow Oct. 1-23, July 22 to Sept. 18.

1925-50: Maximum discharge, 13,500 aecond-feet Feb. 9, 1938, from rating -curve extended above 1,000 second-feet on basis of velocity-area studies; maximum gage height, 

13.5 feet, present datum, Feb. 3, 1945; no flow at times during summers of 1929-36,

Remarks. Records good except those for June 28 to July 5, July 20-23, which are fair. 

At times small amounts of water from Stanislaus River Basin are spilled into Woods 

Creek above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.3 

1.0

1.1

1.3 

1.6 

1.8 

1.5 

1.2

Nov.

1.0 

1.0 

1.0 

1.0 

.9

1.0 

1.1 

1.5 

5.3 

51

18 

11 

10 

10 

9.3

7.3 

6.5 

7.3 

5.7 

5.0

4.7 

4.2 

4.5 

5.4 

5.7

5.2 

5.2 

5.2 

6.0 

6.0

Dec.

6.5 

6.3 

6.3 

6.3 

6.0

5.7 

6.0 

7.9 

7.6 

6.8

6.5 

6.0 

6.3 

6.3 

7.3

8.6 

10 

20 

52 

23

14 

11 

11 

11 

11

11 

10 

11 

11 

11 

11

Jan.

10 

11 

13 

9.9 

9.6

9.9 

13 

29 

36 

21

66 

46 

25 

58 

36

138 

L.460 

341 

182 

126

119 

96 

150 

194 

76

56 

51 

533 

191 

93 

70

Feb.

55 

50 

46 

1,020 

707

1,070 

264 

134 

95 

92

103 

68 

59 

54 

50

46 

42 

41 

39 

36

36 

33 

31 

33 

39

41 

40 

39

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

her. ....................................

mber. ...............-....-.....---....--

lendar year 1949 

ary

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

Peak discharge (base, 900 sec. -ft.). Jan.

Mar.

39 

39 

39 

38 

38

37 

37 

37 

37 

36

40 

40 

36 

24 

17

14 

18 

28 

60 

80

39 

44

51 

815 

576

325 

174 

117 

93 

90 

66

Apr.

58 

60 

54 

44 

41

46 

72 

697 

546 

224

140 102' 

90 

80 

69

71 

66 

48 

31 

27

31 

35 

43 

43 

40

30 

27 

22 

22 

26

Secondfoot-days

9.8 

206.0 

334.4

12,103.7

4,269.4 

4,363 

3,124 

2,885 

654.8 

297.6 

21.1 

0 

23.6

16,188.7

May

31 

46 

57 

46 

34

30 

33 

32 

25 

26

26 

25 

24 

20 

22

21 

18 

16 

15 

14

9.6 

13 

14 

9.3 

8.6

7.6 

6.8 

6.3 

6.3 

6.3 

6.0

Maximum

1.8 

51 

52

1,390

1,460 

1,070 

815 

697 

57 

27 

4.0 

0 

3.4

1,460

June

5.4 

4.5 

3.8 

3.6 

3.4

3.4 

4.2 

5.0 

5.0 

4.7

9.9 

13 

13 

14 

15

27 

17 

12 

12 

12

13 

11 

9.6 

20 

15

11 

10 

a8.6 

a6.5 

85.0

July

a4.o 

a3.4 

a2.6 

a2.0 

al.6

1.2 

.9 

.6 

.6 

.4

.5 

.7 

.6 

.5 

.4

.3 

.2 

.2 

.2

.a.l

a.l

ao 

aO 

0 

0

0 

0

0 

0 

0 

0

Minimum .

0 

.9 

5.7

0

9.6 

31 

14 

22 

6.0 

3.4 

0 

0 

0

0

Aug.

Mean

0.32 

6.87 

10.8

33.2

138 

156 

101 

96.2 

21.1 

9.92 

.68 

0 

.79

44.4

Sept.

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.2 

3.0

3.4 

2.6 

2.2 

2.0 

1.6

1.5 

1.8 

1.9 

1.8 

1.6

Runoff In 

acre-feet

19 

409 

663

24,000

8,470 

8,650 

6,200 

5,720 

1,300 

590 

42 

0 

47

32,110

17 (6 a.m.) 2,180 sec. -ft. j Feb. 4 (8:30 p.m.). 12,780

sec.-ft.; Mar. 24 ( 8:30 p.m.) 1,950 sec.-ft.j Apr. 8 (6i30 p.m.) 1,760 sec.-ft.

a No gage-height record; discharge computed on basis of records for South Fork Tuolumne River near 

Oakland Recreation Camp.
TUOLUMNE RIVER BASIN 261

Modesto Canal near La Grange, Calif.

Location. Water-stage recorder and concrete control, lat. 3?°40'04",^long. 120°27'26" in 

swi sec. 17, T. 3 S., R. 14 E., 0.5 mile northeast of La Grange and I mile downstream 

from intake at La Grange Dam. Datum of gage is 272.4 feet above mean sea level (levels 

by Modesto Irrigation District).

Records available.--April 1903 to September 1950. 

Average discharge. 47 years, 375 second-feet.

Extremes.--Maximum daily discharge during year, 1,410 second-feet June 23; minimum daily 

 U:-8 second-foot Nov. 25, Dec. 20, 21.

1903-50: Maximum daily discharge, 1,820 second-feet July 1, 1935; no flow at times.

Remarks.--Records excellent except those for Oct. 26 to Nov. 21, Apr. 12-24, 26-30, Sept. 

J.5-20, and those for periods of fragmentary gage-height record, which are good. 

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.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

. 17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

354 

354 

351 

353 

351

353 

357 

354 

361 

347

332 

129 

132 

134 

123

65 

4.4 

2.0 

2.0 

2.0

2.0 

1.9 

2.0 

1.7

1.3

1.3 

1.3 

1.3 

1.5 

1.3 

1.1

Hov.

1.3 

1.5 

1.3 

1.7 

1.3

1.3 

1.5 

1.7 

1.5 

1.7

1.5 

1.5 

1.3 

1.1 

1.3

1.5 

1.3 

1.5 

1.5 

1.0

1.1 

1.9 

1.5 

1.0 

.8

1.1 

1.1 

1.5 

1.9 

1.7

Dec.

1.5 

1.9 

1.9 

1.5 

1.7

1.9 

1.7 

1.3 

1.3 

1.1

1.1 

1.3 

1.3 

1.5 

1.7

1.3 

1.0 

1.0 

1.0 

.8

.8 

106 

106 

104 

92

87 

120 

121 

119 

128 

121

Jan.

20 

18 

139 

140 

136

128 

116 

20 

136 

101

101 

140 

129 

17 

16

20 

132 

129 

103 

118

14 

22 

116 

121 

132

150 

140 

24 

21 

126 

148

Feb.

138 

142 

205 

24 

f5.9

f2.0 

3.8 

4.6 

4.9 

4.9

4.9 

4.9 

4.9 

478 

682

630 

675 

667 

437 

119

24 

24 

24 

24 

23

24 

24 

24

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Apr!

liav

June 

July 

Augu 

Sept

Na

ber. ....................................

lendar year 1949

h. ................................ .^ ....

ter year 1949-50 .......................

Mar.

24 

25 

24 

24 

24^

26 

24 

12 

6.2 

206

424 

402 

418 

424 

522

656 

662 

620 

673 

642

702 

836 

f829 

675 

578

562 

578 

560 

544 

547 

f553

Apr.

f529 

524 

520 

542 

568

560 

553 

700 

755 

752

757 

757 

752 

740 

774

776 

764 

757 

764 

764

786 

793 

791 

781 

1,100

1,210 

1,250 

1,340 

1,340 

1,320

Secondfoot-days

4,477.1 

41.9 

1,132.6

169,997.6

2,873 

4,478.8 

12., 802. 2 

24,319 

35,716 

31,278 

23,962 

22,232 

18,324

181,636.6

Bay

1,320 

1,340 

1,330 

1,330 

1,320

1,300 

f 1,230 

f 1,300 

1,320 

f 1,320

1,130 

880 

887 

880 

899

1,010 

1,070 

1,080 

1,080 

1,070

1,060 

1,070 

1,150 

1,170 

1,160

1,150 

1,140 

1,080 

1,180 

1,220 

1,240

Maximum

361 

1.9 

128

1,570

150 

682 

836 

1,340 

1,340 

1,410 

879 

786 

719

1,410

June

1,170 

1,140 

1,120 

1,110 

1,060

1,010 

1,110 

1,120 

1,090 

1,090

1,090 

1,090 

1,080 

1,080 

1,090

954 

863 

856 

956 

913

834 

1,080 

1,410 

1,220 

1,090

1,090 

937 

875 

875 

875

July

875 

875 

875 

872 

872

760 

760 

879 

760 

745

736 

745 

745 

740 

736

726 

726 

728 

711 

715

717 

750 

743 

743 

774

776 

774 

767 

779 

779 

779

Minimum

1.1 

.8 

.8

.4

14 

2.0 

6.2 

520

aao

834 

711 

618 

403

.8

Aug.

786 

781 

779 

784 

786

776 781' 

779 

779 

781

667 

620 

618 

622 

618

620 

622 

653 

664

671

678 

711 

774 

772) 

776

728 

724 

726 

724 

719 

713

Mean

144 

1.40 

36.5

466

92.7 

160 

413 

811 

1,152 

1,043 

773 

717 

611

498

Sept.

719 

713 

713 

717 

713

Til 

704 

708 

711 

708

708 

686 

636 

622 

622

620 

614 

612 

616 

526

515 

517 

504 

496 

504

501 

502 

498 

499 

403

Runoff In 

acre-feet

8,880 

83 

2,250

337,200

5,700 

8,880 

25,390 

48,240 

70,840 

62,040 

47,530 

44,100 

36,350

360,300

f Fragmentary gage-height record) discharge computed from partly estimated gage heights. 

Note. Computed from graph based on gage readings Oct. 26 to Hov. 21, Apr. 12-24, 26-30, 

^.5-20.

207481 O - 52 - 18
262 TUOLUMNE RIVER BASIN

Turlock Canal near La Grange, Calif.

Location. Water-stage recorder and concrete control, lat. 37 0 40'00", long. 120°26'25", 

near north line of NW^- sec. 21, T. 3 S., R. 14 E., 2,400 feet downstream from intake 

at La Grange Dam and 1.2 miles east of La Grange. Altitude of gage, about 265 feet 

(from topographic map).

Records available.--October 1898 to September 1950. 

Average discharge.--52 years, 531 second-feet.

Extremes. Maximum daily discharge during year, 2,050 second-feet June 14, 23; minimum 

daily, 0.8 second-foot Feb. 21.

1898-1950: Maximum daily discharge, 2,280 second-feet June 12, 1949; no diversion 

for irrigation during some periods in each year. Prior to 1939, unmeasured small discharge during winter called zero.

Remarks. Records excellent except those for period of no gage-height record, which are 

goo3. 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.O1O 

648 

1,110 

1,130 

1,120

1,110 

1,170 

1,140 

677 

587

460 

614 

384 

43 

25

20 

25 

31 

33 

33

32 

21 

19 

28 

24

22 

20 

20 

16 

13 

14

Nov.

21 

25 

26 

25 

16

12 

25 

24 

23 

21

16 

14 

9.8 

16 

24

22 

17 

12 

9.8 

8.6

S.6 

9.8 

9.2 

9.2 

9.2

9.2 

8.0 

8.6 

9.8

11

Dec.

10 

10 

8.6 

7.6 

117

304 

357 

330 

280 

261

54 

359 406' 

400 

423

350 

37O 

16 

365 

417

37O 

287 

280 

25 

 . 11

9.8 

267 

223 

3OO 

319 

310

Jan.

16 

14 

103 

129 

69

13 

7.6 

9.2 

6.7 

8136

353 

a71 

85 

8.0 

7.1

133 

12 

6.7 

5.8 

5.8

4.5 

6.7 

4.9 

7.6 

7.6

8.0 

66 

74 

8.0 

7.1 

7.6

Feb.

11 

10 

9.8 

152

13

54 

10 

8.0 

9.8 

11

7.6 

7.1 

7.6 

7.1 

6.2

6.2 

4.9 

4.0 

4.5 

3.6

.8 

1.7 

2.4 

2.2 

2.2

1.9 

428 

520

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

520 

516 

516 

654 

732

732 

741 

752 

75S 

75S

749 

730 

766 

774 

1,100

1,170 

1,170 

954 

1,110 

1,130

1,170 

1,350 

1,680 

1,540 

1,170

. 1,100 

1,110 

820 

730 

727 

719

Apr.

713 

713 

710 

849 

960

960 

963 

874 

776 

612

502 

496 

464 

484 

490

493 

493 

803 

968 

1,120

 1,220 

1,370 

1,630 

1,740 

1,770

1,820 

1,880 

1,920 

1,930 

1,940

Secondfoot -days

11,599 

459.8 

7,247.0

£95,472.7

1,092.9 

1,306.6 

28,448 

31,683 

51,810 

49,440 

41,120 

38,410 

35,309

297,925.3

May

1,930 

1,930 

1,930 

1,910 

1,910

1,900 

1,690 

1,590 

1,560 

1,560

1,570 

1,630 

1,630 

1,620 

1,600

1,560 

1,55O 

1,550 

1,550 

1,530

1,540 

1,610 

1,630 

1,620 

1,620

1,640 

1,820 

1,750 

1,640 

1,600 

1,64O

Maximum

1,170 

26 

423

2,280

136 

520 

1,680 

1,940 

1,930 

2,050 

1,660 

1,390 

1,360

2,050

June

1,S20 

1,930 

1,930 

1,930 

1,600

1,090 

1,120 

1,470 

1,520 

1,520

1,520 

1,530 

1,340 

2,050 

2.O3O

1,630 

1,390 

1,400 

1,670 

1,650

1,400 

1,680 

2,050 

2,020 

2,030

2,040 

1,590 

1,330 

1,330 

1,330

July

1,330 

1,330 

1,330 

1,330 

1,330

1,450 

1,620 

1,660 

1,440 

1,430

1,460 

1,450 

1,450 

1,460 

1,470

1,470 

1,480 

1,350 

1,300 

1,210

1,210 

1,150 

1,100 

1,190 

1,140

1,160 

1,190 

1,190 

1,150 

1,110 

1,180

Minimum

13 

8.0 

7.6

1.1

4.5 

.8 

516 

484 

1,530 

1,090 

1,100 

1,O90 

809

.8

Aug.

1,180 

1,200 

1,210 

1,180 

1,200

1,130 

1,230 

1,240 

1,230 

1,230

1,280 

1,230 

1,110 

1,290 

1,330

1,340 

1,300 

1,290 

1,210 

1,090

1,180 

1,190 

1,160 

1,240 

1,280

1,250 

1,160 

1,350 

1,350 

1,360 

1,390

Mean

374 

15.3 

234

810

35.3 

46.7 

918 

1,056 

1,671 

1,648 

1,326 

1,239 

1,177

816

Sept.

1,360 

1,180 

920 

975 

1,210

1,170 

1,180 

1,170 

1,O9O 

965

1,250 

1,260 

1,320 

1,330 

1,270

1,170 

1,OSO 

1,180 

1,250 

1,080

1,150 

1,170 

1,130 

809 

l',200

1,300 

1,310 

1,330 

1,260 

1,240

Runoff In 

acre-feet

23,010 

912 

14,370

586,200

2,170 

2,590 

56,430 

62,840 

102,800 

98,060 

81,560 

76,190 

70,030

591,000

a No gage-height record; discharge computed on basis of records for Tuolumne River above La Orange 

Dam, La Orange powerhouse, and Modesto Canal.
STANISLAUS RIVER BASIN 263

Middle Pork Stanislaus River at Kennedy Meadows, Calif.

Location. Water-stage recorder, Iat.-t3a°18', long. 119°45', in NE£ sec. 11, T. 5 N., R. 

20~E7, at upper end of Kennedy Meadows, 1 mile upstream from Deadman Creek and 2 miles 

downstream from Relief Reservoir. Altitude of gage, about 6,450 feet (from topographic 

map).

Drainage area. 49.5 square miles.

Records available. October 1938 to October 1945, May 1946 to September 1950.

Average discharge.--11 years (1938-45, 1946-50), 126 second-feet.

Extremes. Maximum discharge during year, 1,090 second-feet May 31 (gage height, 5.84

reet); minimum, 4.8 second-feet Dec. 7, but may have been less during period of no gageheight record.

1938-50: Maximum discharge recorded, 1,160 second-feet June 1, 1943 (gage height, 

6.17 feet); minimum, that of Dec. 7, 1949.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

wnich are poor. Plow regulated since beginning of record by Relief Reservoir (usable 

capacity, 15,550 acre-feet). No diversion.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating table, water year 1949-50, except period of Ice effect 

(gage height, In feet, and discharge, In second-feet)

1.0 7.0 1.6 26 2.6 93 4.2 370 

1.1 9.5 1.8 ,35 3.0 138 4.7 539 

1.2 12 2.0 46 3.4 196 5.2 750 

1.4 18 2.2 59 3.8 270 5.7 1,010

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

. 17 

18 

19 

20

21 

22 

?3 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

12 

12 

12 

11

11 

12 

13 

13 

12

12 

12 

12 

12 

12

11 

10 

11 

11 

11

11 

55 

114 

114 

114

114 

114 

114 

114 

114 

114

Nov.

115 

115 

115 

115 

116

116 

115 

115 

115 

116

116 

115 

115 

114 

114

113 

112 

112 

112 

111

110 

110 

110 

110 

110

108 

108 

107 

107 

106

Dec.

105 

104 

103 

102 

67

10 

10 

10 

9.5 

10

10 

11 

8.0 

12 

10

9.5 

9.2 

9.2 

9.2 

9.2

9.2 

9.5 

9.0 

9.5 

9.2

b9.2 

b9.2 

9.2 

9.5 

9.2 

9.2

Jan.

9.0 

9.8 

8.8 

9.5 

9.8

9.0 

7.5 

11

, 10 

14

Feb.

18

Month

OotO 

Hove

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

nay.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 ...............

Mar.

24

20

32

24 

23 

28 

32

Apr.

39 

50 

58 

71 

80

71 

56 

51 

48 

42

42 

46 

47 

41 

46

61 

80 

101 

125 

148

168 

172 

161 

161 

171

219 

370 

394 

350 

339

Secondfoot-days

1,326 

3,373 

729.7

33,904.7

368.4" 

504 

771 

3,810 

14,751 

14,130 

5,467 

1,471 

1,888

48,589.1

May

321 

256 

211 

178 

161

150 

138 

127 

125 

136

171 

227 

309 

435 

509

578 

. 614 

574 

566 

647

718 

736 

687 

582 

602

760 

860 

820 

780 

845 

928

Maximum

114 

116 

105

664

394 

928 

977 

397 

220 

148

977

June

977 

890 

768 

669 

718

687 

410 

290 

294 

345

382 

215 

195 

279 

382

449 

488 

480 

517 

555

652 

590 

543 

332 

285

311 

321 

334 

370 

410

July

397 

382 

370 

319 

288

283 

272 

240 

222 

201

199 

222 

201 

186 

171

157 

138 

120 

113 

108

107 

105 

103 

83 

71

76 

78 

74 

65 

60 

56

Aug.

54 

53 

50 

48 

41

38 

36 

35 

34 

33

34 

34 

32 

30 

30

28 

28 

28 

26 

28

27 

26 

26 

25 

24

23 

23 

42 

117 

198 

220

Sept.

148 

68 

43 

30 

23

20 

56 

119 

119 

119

119 

118 

115 

114 

11*

114 

114 

114 

66 

15

15 

15

14 

14 

14

14 

14 

14 

13 

13

Mini, Mean «£M

10 42.8 2,630 

106 112 6,690 

8.0 23.5 1,450

28.9 67,240

11.9 731 

18.0 1,000 

24.9 1,53O 

39 127 7,560 

125 476 29,260 

195 471 28,030 

56 176 10,840 

23 47.5 2,920 

13 60.9 3,740

133 96,380

b Stage-discharge relation affected by Ice,

Note. Ho gage-height record Oct. 9, 10, Jan. 9 to Mar. 27; discharge computed on basis of weather 

records and records for station at Sand Bar Flat near Avery. 
264 STANISLAUS RIVER BASIN

Middle Pork Stanislaus River at Sand Bar Plat, near Avery, Calif.

Location. Water-stage recorder, lat. 38°11', long. 120°09', in sec. 19, T. 4 N., R. 17 E., 

1 mile upstream from diversion dam of Pacific Gas & Electric Co. at Sand Bar Flat and 11 

miles southeast of Avery. Altitude of gage, about 2,650 feet (from topographic map).

Drainage area. 318 square miles.

Records available. September 1905 to September 1950.

Average discharge. 44 years (1905-8, 1909-50), 685 second-feet.

Extremes. Maximum discharge during year, 4,700 second-feet May 27 (gage height,'10 .67 

feet); minimum, 54 second-feet Oct. 15-18.

1905-50: Maximum discharge recorded, 26,500 second-feet Dec. 11, 1937 (gage height, 

21.0 feet, from floodmarks), from rating curve extended above 6,000 second-feet on basis 

of logarithmic plotting; minimum discharge, 30 second-feet Aug. 24, 1924.

Remarks. Records good. Plow partly regulated by Relief Reservoir beginning in 1909 

[capacity, 15,550 acre-feet). Water diverted by Philadelphia Canal (see p. 271) from 

South Fork Stanislaus River through Spring Gap powerhouse into Middle Pork above station. 

Stanislaus tunnel diverts 1 mile downstream.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Revisions (water years). W 831: 1935, 1936.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

2.7 52 4.4 308 6.5 1,080 

3.0 81 4.8 412 7.0 1,340 

3.3 116 5.2 540 8.0 2,000 

3.6 157 5.6 680 9.0 2,840 

4.0 223 6.0 840 10.0 3,870

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

98 

98 

96 

94 

96

94 

97 

98 

99 

102

104 

103 

100 

102 

88

55 

55 

75 

105 

106

106 

106 

129 

188 

190

188 

188 

188 

186 

186 

185

Nov.

185 

183 

182 

182 

182

182 

182 

188 

212 

245

196 

198 

200 

200 

196

198 

198 

198 

200 

198

196 

196 

195 

195 

202

203 

196 

198 

196 

195

Dec.

193 

188 

186 

' 185 

186

163 

116 

112 

110 

109

100 

88 

99 

100 

90

90 

89 

93 

92 

76

89 

82 

80 

80 

78

76 

77 

77 

72 

70 

67

Jan.

68 

78 

104 

108 

94

93 

79 

89 

98 

92

86 

78 

92 

77 

75

103 

172 

245 

227 

212

200 

249 

420 

408 

235

191 

190 

185 

168 

160 

151

Feb.

142 

143 

147 

280 

350

506 

381 

296 

261 

251

281 

251 

243 

251 

278

303 

299 

303 

330 

342

340 

358 

376 

395

439

487 

526 

520

Month

Oeto 

Nove 

Dece

Ca

Janu 

Pebr 

Ware 

Aprl

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1949

h. ......................................

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

ter year 1949-50 .......................

Mar.

509 

490 

493 

540 

638

550 

490 

471 

439 

406

398 

358 

361 

350 

340

348 

398 

406 

621 

796

620 

796 

720 

680 

603

550 

520 

530 

568 

638 

788

Apr.

1, 

1, 

1, 

1,

1, 

1, 

1,

1,

1 

1, 

1, 

1 

2,

2 

2, 

2, 

2, 

2,

2 

2, 

2 

2, 

2,

Secondfoot-days

3,705 

5,877 

3,313

170,931

4,827 

9,079 

16,415 

49,840 

80,170 

54,570 

15,869 

5,485 

5,247

254,397

Peak discharge (base. 1.900 sec. -ft.). Apr. 27 (12:30

854 

020 

130 

180 

310

320 

390 

140 

975 

903

903 

960 

100 

975 

940

120 

380 

590 

920 

290

600 

640 

320 

370 

510

670 

860 

690 

390 

390

May

2,370 

1,870 

1,570 

1,370 

1,320

1,280 

1,170 

1,100 

1,080 

1,180

1,320 

1,580 

1,940 

2,470 

2,890

3,220 

3,390 

3,230 

3,170 

3,400

3,630 

3,650 

3,420 

3,280 

3,270

3,530 

3,800 

3,690 

3,520 

3,640 

3,820

Maximum

190 

245 

193

2,930

420 

526 

796 

2,860 

3,820 

3,840 

1,160 

322 

330

3,840

June

3,840 

3,520 

3,030 

2,710 

2,800

2,690 

1,860 

1,440 

1,460 

1,500

1,640 

1,300 

1,180 

1,310 

1,530

1,660 

1,730 

1,680 

1,770 

1,930

2,040 

1,870 

1,760 

1,450 

1,140

1,120 

1,100 

1,110 

1,200 

1,200

July

1,160 

1,130 

1,060 

985 

862

788 

772 

696 

645 

592

564 

582 

550 

500 

461

424 

387 

355 

327 

303

294 

283 

272 

261 

233

229 

245 

241 

233 

221 

214

Aug.

218 

214 

210 

205 

203

196 

190 

185 

182 

178

170 

177 

178 

174 

168

163 

160 

157 

154 

151

150 

147 

146 

146 

144

142 

140 

137 

147 

231 

322

Minimum Mean

55 120 

182 196 

67 107

53 468

68 156 

142 324 

340 530 

854 1,661 

1,080 2,586 

1,100 1,819 

214 512 

137 177 

116 175

55 697

a.m.) 3,310 sec. -ft.; Hay 27 (10

Sept.

330 

216 

170 

153 

142

133 

130 

170 

214 

223

229 

227 

218 

216 

212

210 

214 

223 

221 

177

133 

128 

125 

122 

121

120 

120 

117 

117 

116

Runoff in 

acre-feet

7,350 

11,660 

6,570

339,100

9,570 

18,010 

32,560 

98,860 

159,000 

108,200 

31,480 

10,880 

10,410

504,600

:30 p.m.)
STANISLAUS RIVER BASIN 265

Melones Reservoir at Melones Dam, Calif.

Location. Staff gage and'reference point, lat. 37°57'15", long. 120°30'45", near center 

oTsec. 11, T. 1 N., 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.

Kecords available. June 1927 to September 1950.

jmremes. Maximum contents observed during year, 112,600 acre-feet June 18-27 {elevation; 735.0 feet); minimum observed, 8,860 acre-feet Sept. 19 (elevation, 635.3 feet).

1927-50: Maximum contents observed, 115,200 acre-feet May 25, 26, June 1, 1943 

(elevation, 736.4 feet); minimum, 5,820 acre-feet Oct. 12, 1929 (elevation, 625.7 feet),

Remarks. Reservoir is formed by concrete overflow dam; storage began Aug. 21, 1926; dam 

completed in December 1926. Capacity for power development 1 mile below dam is 106,100 

acre-feet between elevations 628.0 feet (minimum operating level) and 735.0 feet (top 

of drum-type spillway gates) above mean sea level; 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 

Stanislaus River to Goodwin Dam, where it is diverted into Oakdale and South SanJoaquin Canals for irrigation.

Cooperation .'--Record of contents"/ furnished by Pacific Gas & Ele<Tti'lC Co., obtained in 

connection with a Federal Power Commission project.

Contents, In acre-feet, October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

1112.

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

alO.OOO

alO,200

10,400

10,500

10,600

10,600

10,700

alO,900

all.lOO

11,400

11,500

11,600

11,700

11,800

a!2,000

a!2,200

12,400

12,300

12,300

12,400

a!2,500

12,700

12,900

13,200

a!3,400

13,600

13,900

14,200

a!4,600

al5,ooo

15,200

Nov.

15,500

15,800

16,000

16,100

a!6,500

a!7,OOO

17,200

17,300

17,600

18,200

19,100

19,400

20,100

20,500

20,800

21,200

21,400

21,800

a22,300

a22,800

23,100

23,400

23,600

23,900

24-, 100

824,400

a24,800

25,100

25,600

25,800

-

Dec.

26,100

26,400

26,700

27,200

27,600

27,900

27,400

27,200

27,300

27,400

27,700

27,900

28,000

28,000

27,800

27,800

a28,100

a28,500

28,700

29,200

29,000

29,000

28,900

28,700

29,000

29,200

29,200

29,100

29,200

28,500

28,300

Jan.

28,600

29,000

a28,7OO

28,300

28,200

28,000

a28,300

a28,600

28,600

28,606

28,600

28,700

28,700

28,700

29,400

29,700

32,000

34,900

35,700

35,500

35,500

35,000

35,000

36,100

36,800

36,900

36,400

36,500

37,300

37,000

36,40O

Feb.

35,700

*34,90O

33,700

33,200

40,100

44,200

49,800

51,800

52,900

53,100

53,300

53,400

53,300

53,000

53,OOO

52,700

52,700

'52,700

52,700

52,700

52,700

52,300

52,300

52,300

52,300

52,600

53,000

54,200

_

-

-

Mar.

54', 600

55,200

55,600

56,100

56^,900

58,300

59,000

59,600

60,000

60,400

60,40O

59,100

60,400

58,900

58,700

58,000

57,400

56,300

55,800

57,200

58,900

59,900

61,700

63,200

67,000

69,400

72,600

75,200

78,000

80,600

83,6OO

Apr.

86,900

a90,OOO

93,000

93,300

a93,500

93,800

93,800

94,300

94,300

93, BOO

93,500

93,300

93,5OO

93,600

93,300

93,300

93,600

94,200

94,600

95,000

95 ,500

95,800

95,700

95,500

95,500

95,800

96,000

96,000

95,700

95,300

-

May

95,500

95,300

94,600

94,200

94,000

93,800

93,800

93,600

93,500

93,600

94,000

95,000

96,500

97,500

98,700

99,600

100,100

100,100

99,600

99,600

100,100

100,600

100,200

100,200

100,100

100,100

100,100

100,600

1O0.100

99,900

100,100

June

100,400

100,600

99,400

98,400

99,200

99,600

101,400

100,600

101,200

103,000

105,100

106,900

108,000

108,200

108,700

109,800

111,500

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,400

112,200

112,200

-

July

112,200

112,100

111,700

111,100

110,200

109,500

108,700

108,200

107,500

106,600

105,500

104,400

103,500

102,300

101,100

99,900

98,500

97,000

95,500

94,000

92,500

91,000

89,400

87,900

86,500

84,800

83,200

81,700

80,200

-78,600

76,800

Aug.

75,200

73,500

71,800

70,100

68,500

66,700

65,000

63,300

61,600

a59,800

58,200

56,400

54,900

53,300

51,500

49,800

48,300

46,700

45,400

43,900

42,500

41,OOO

39,600

38,000

36,700

35,OOO

33,600

32,200

30,900

29,300

28,000

Sept.

a26,700

25,400

24,700

23,300

21,800

20,500

19,100

17,700

16,200

14,900

13,800

12,600

11,300

10,100

9,410

9,830

9,220

8,970

8,860

8,930

9,570

9,950

10,400

10,700

11,100

10,700

10,600

10,600

10,600

10,500

-

a No gage-height record; contents computed on basis of outflow.

Mu...-nly elevation and contents, water year October 1949 to September 195O

Date

Nov. 30.......................

Dec. 31........................

Jan. 31.......................

Feb . 28 .......................

Mar. 31.......................

Elevation 

(feet)t

669.2

_

734 8

Contents 

(acre-feet)

28,300

_

Change in contents 

during month 

(acre-feet)

+2,500

-1,8OO

+12 100

-17,500

t Elevation at 5 p.m.
266 STANISLAUS RIVER BASIN 

Stanislaus River below Melones powerhouse, Calif.

Location. Water-stage recorder, lat. 37°56'50", long. 120°31'45", near line between sees, 

lu and 15, T. IN., 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.

Records available. January 1931 to September 1950.

Average discharge. 19 years, 1,474 second-feet.

Extremes. Maximum discharge during year, 7,780 second-feet May 22 (gage height, 11.16 

reet); minimum, 2.8 second-feet Nov. 26, 27, 28.

1931-50: Maximum discharge, 22,800 second-feet Mar. 31, 1940 (gage height, 17.6 

feet); minimum, 0.4 second-foot Jan. 19, 20, 1943.

Remarks. Records good except those for Sept. 20-24, which are poor. Plow regulated by 

Melones powerhouse, Melones Reservoir (see preceding page), and several smaller reservoirs above station. Several diversions above station.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

3.3 1.3 3.S 46 4.8 445 8.O 3.54O 

3.4 3.8 3.9 69 5.3 7OO 9.0 4.77O 

3.5 8.8 4.0 97 5.6 1,010 10.0 6,080 

3.6 18 4.2 164 6.0 1,370 11. O 7,530 

3.7 39 4.4 344 7.O 2.4OO

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

' 6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

20

21 

23 

23 

24 

35

86 

27 

28 

29 

30 

31

Oct.

3.4 

3.4 

84 

92 

98

96 

94 

4.6 

4.6 

103

105 

106 

106 

105 

4.6

4.6 

96 

103 

102 

96

96 

5.5 

5.5 

101 

1O2

. 108 

104 

99 

5.0 

5.0 

98

Nov.

93 

99 

136 

128 

5.0

5.0 

120 

130 

127 

124

134 

3.8 

3.8 

100 

1OS

102 

110 

108 

4.6 

4.6

117 

126 

135 

125 

130

3.8 

3.8 

119 

132 

133

Dec.

135 

134 

4.6 

4.6 

130

403 

355 

133 

132 

5.0

4.6 

107 

112 

344 

159

132 

4.3 

4.2 

US 

331

134 

315 

222 

3.4 

3.1

216 

336 

331 

224 

315 

4.3

Jan.

3.8 

314 

231 

331 

229

313 

3.1 

4.2 

233 

230

331 

231 

230 

5.5 

5.0

400 

819 

906 

912 

912

913 

906 

906 

863 

935

931 

873 

933 

932 

932 

925

Feb.

902 

896 

912 

933 

918

960 

979 

979 

979 

954

954 

985 

992 

993 

992

999 

968 

968 

962 

962

962 

955 

955 

961 

961

986 

961 

955

Month

Octo 

Move 

Dece

Ca

Janu 

Febr

'arc 

kpri 

May. 

J.-.ne 

T uly 

vugu 

jept

Wa

mber. ............. - - ... - - - .......

lender year 194S 

ary

.......................

h.......................................

ter year 1949-50 .......................

Mar.

950 

9 8O 

9 SO 

987 

9 SO

980 

956 

956 

987 

993

993 

1,180 

1,160 

1,000 

1,190

1,270 

1,270 

1,270 

1,360 

1,370

1,260 

1,360 

1,330 

1,370 

1,380

475 

357 

353 

355 

347 

358

Apr.

1, 

2, 

2, 

3,

3, 

3, 

3, 

3, 

2,

3, 

3, 

2, 

3, 

2,

3, 

3, 

3, 

4, 

4,

5, 

5, 

5, 

5, 

5,

5, 

6, 

5, 

5, 

4,

Secondfoot -days

2,139.2 

2,618.4 

4,085.9

360,873.5

16,268.6 

36,883 

30,447 

113,926 

159,590 

86,490 

38,520 

31,478 

15,378

536,724.1

476 

110 

370 

77O 

1OO

030 

200 

77O 

590 

930

640 

610 

810 

830 

540

600 

130 

640 

190 

850

450 

930 

450 

240 

340

590 

020 

810 

080 

850

May

4,980 

4,48O 

3,650 

3,050 

2,820

3,740 

3,600 

3,410 

3,340 

3,310

3,440 

3,940 

3,760 

4,610 

5,670

6,440 

6,740 

6,570 

6,260 

6,540

6,950 

7,420 

6.84O 

6,910 

6,810

6.74O 

6,960 

7,300 

6,740 

6,750 

6,920

Maximum

108 

130 

403

8,050

933 

999 

1,38.0 

6,030 

7,430 

7,120 

1,630 

1,110 

922

7,420

June

7,130 

6,810 

6,090 

4,690 

4,670

4,000 

3,790 

3,760 

1,670 

1,670

1,920 

2,030 

2,O30 

2,030 

2.O4O

3,050 

2,O5O 

3,320 

2,630 

3,540

3,120 

3,030 

3,630 

3,420 

3,030

1,77O 

1,690 

1,670 

1,620 

1,630

July

1,630 

1,620 

1,620 

1,620 

1,490

1.4OO 

1,280 

1,310 

1,210 

1,210

1,210 

1,210 

1,200 

1,310 

1,310

1,230 

1,330 

1,330 

1,230 

1,150

1,130 

1,110 

1,110 

1,110 

1,110

1,110 

1,100 

1,100 

1,100 

1,100 

1,100

Aug.

1,100 

1,110 

1,100 

1,100 

1,110

1,110 

1,110 

1,100 

1,100 

1,100

1,100 

1,09O 

1,090 

1,080 

1,070

970 

946 

946 

946 

938

938 

938 

930 

930 

938

938 

938 

93O 

932 

930 

930

Minimum Mean

3.4 69.0 

2.8 87.3 

3.1 133

3.8 989

3.1 525 

896 96O 

347 982 

476 3,764 

2,340 5,148 

1,630 2,883 

1,100 1,243 

922 1,015 

14 509

3.8 1,443

Sept.

932 

932 

914 

914 

9O6

898 

89O 

883 

8S3 

SS2

874 

866 

866 

695 

3OS

325 

380 

390 

383 

14

14 

16 

16 

16 

313

333 

300 

178 

146 

145

Runof f In 

acre-feet

4,340 

5,190 

8,100

715,800

33,370 

53,330 

60,390 

334,000 

316,500 

171,600 

76,400 

62,440 

30,300

1,045,000
STANISLAUS RIVER BASIN 267

Stanislaus River at Ripon, Calif.

Location. Water-stage recorder, lat. 37°43'50", long. 121°06'35", in SE£ 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 Hodesto Irrigation 

District)

Records available. October 1940 to September 1950 in reports of Geological Survey. April 

law to uecemoer 1950 in reports of Division of Water Resources, Department of Public 

Works, State of California.

Average discharge.--10 years, 1,104 second-feet.

Extremes.--Maximum discharge during year, 6,220 second-feet Hay 29 (gage height, 54.36 

feet); minimum, 132 second-feet Nov. 2.

1940-50:, Maximum discharge, 19,700 second-feet Mar. 11, 1943 (gage height", 59.83 

feet); minimum, 122 second-feet Aug. 5, 1949.

Flood of Feb. 12, 1938, reached a stage of 64.4 j!eet, from floodmarks. Flood of 

Apr. 1, 1940, reached a stage of 61.1 feet, from floodmarks.

Remarks. Records fair. Flow regulated *oy reservoirs and power plants above station (see 

Kemarks" for Stanislaus River below Melones powerhouse). Many diversions above station for irrigation.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California, and others.

Discharge, in second-feet, water year October 1949 to September 1950 ,

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

212 

226 

192 

179 

166

, 2OO 

216 

224 

206 

177

156 

157 

195 

203 

208

211 

180 

160 

164 

196

206 

211 

209 

180 

152

158 

196 

204 

209 

211 

174

Nov.

145 

145 

177 

198 

217

211 

216 

179 

188 

238

253 

226 

236 

196 

157

142 

160 

204 

214 

198

166 

154 

150 

192 

219

226 

229 

190 

151 

158

Dec.

206 

231 

234 

238 

195

157 

172 

382 

370 

285

263 

209 

166 

172 

226

342 

346 

306 

243 

187

201 

195 

160

145 

139

142 

140 

d!40 

d260 

221 

185

Jan.

166 

157 

144 

139 

142

146 

145 

142 

142 

136

142 

146 

164 

172 

182

187 

295 

2.04O 

1,200 

939

867 

975 

992 

997 

990

1,000 

1,010 

1,160 

1,960 

1,170 

884

Feb.

750 

689 

667 

658 

1,550

1,430 

1,260 

927 

821

777

823 

775 

731 

709 

821

1,010 

1,050 

1,050 

1,050 

1,060

1,060 

1,060 

1,060 

1,060 

1,060

1,06O 

1,070 

1,070

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

Mav

June 

July

AUgU

Sept 

Wa

lendar year 194S

u&ry ** .... ...........

ter year 1949-50 .......................

Mar.

1,060 

1,060 

1,060 

1,060 

1,060

1,060 

992 

920 

865 

865

821 

773 

713 

786 

556

385 

342 

285 

265 

272

274 

297 

265 

351 

996

1,440 

920 

548 

452 

401 

385

Apr.

348 

317 

480 

1,540 

2,150

2,350 

2,010 

1,850 

2,650 

3,130

2,850 

2,480 

2,290 

2,190 

2,020

1,630 

1,570 

1,840 

2,210 

2,580

3,100 

3,560 

3,960 

4,030 

3,750

3,710 

3,850 

4,200 

4,320 

3,850

Secondfoot-days

5,938 

5,735 

6,858

216,138

18,931 

27,108 

21,529 T'e.ais

118,750 

56,635 

6,736 

5,725 

5,232

355,992

May

3,460 

3,490 

3,330 

2,720 

2,190

1,830 

1,770 

1,700 

1,490 

1,310

1,290 

1,300 

1,570 

2,170 

2,880

3,590 

4,320 

4,930 

5,210 

5,050

5,050 

5,410 

5,830 

5,970 

5,810

5,820 

5,700 

5,730 

6,080 

6,010 

5,740

Maximum

226 

253 

382

5,140

2,040 

1,550 

1,440 

4,320 

6,080 

5,990 

328 

228 

255

6,080

June

5,800 

5,990 

5,970 

5,470 

4,350

3,560 

3,030 

2,650 

2,000 

dl,120

d858 

d768 

766 

745 

696

667 

676 

685 

773 

1,040

1,050 

1,400 

1,500 

1,270 

1,080

819 

579 

454 

474 

395

July

328 

315 

285 

265 

263

240 

211 

209 

226 

229

221 

204 

209 

203 

208

204 

222 

200 

208 

228

196 

200 

188 

208 

192

177 

179 

172 

177 

193 

176

Minimum

152 

142 

139

133

136 

658 

265 

317 

1,290 

395 

172 

146 

140

136

Aug.

221 

226 

196 

187 

187

196 

228 

203 

193 

208

198 

184 

192 

179 

171

195 

195 

174 

158 

148

156 

146 

152 

169 

198

190 

174 

179 

169 

177 

176

Mean

192 

191 

221

592

611 

968 

694 

2,560 

3,831 

1,888 

217 

- 185 

174

975

Sept.

- 164 

164 

168 

168 

156

151 

144 

150 

140 

162

170 

164 

171 

179 

209

196 

208 

255 

229 

208

192 

174 

172 

169 

160

157 

151 

163 

166 

172

Runoff in 

aere-feet

11,780 

11,380 

13,60O

428,700

37,550 

53,770 

42,700 

152,400 

235,500 

112,300 

13,360 

11,360 

10,380

706,100

d Doubtful gage-height record; 

for station at mouth.

discharge interpolated or computed on basis of unpublished records
268 STANISLAUS RIVER BASIN

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., vOO 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 1950.

Average discharge.--29 years (1914-22, 1929-50), 411 second-feet.

Extremes. --Maximum discharge during year, 3,800 second-feet May 15 (gage height, 7.35 feet); 

minimum, 14 second-feet Oct. 22.

1914-22, 1928-50: Maximum discharge, 17,700 second-feet Dec. 11, 1937 (gage height, 

14.1 feet, from floodmarks), from rating curve extended above 3,400 second-feet on basis 

of A\/d studies; minimum, 5.5 second-feet Dec. 6, 7, 1929.

Remarks.--Records good except those for periods of ice effect, which"are poor. Flow partly regulated by four reservoirs (total capacity, 16,200 acre-feet). Diversion from 

Beaver Creek into river, above station.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1949-50, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Nov. 9 to Jan. 17)

0.4 14 1.3 59 4.0 636 

.5 16 1.6 85 4.5 878 

.6 18 2.0 129 5.0 1,190 

.7 22 2.5 200 5.5 1,590 

.8 27 3.0 304 6.0 2.O80 

1.0 38 3.5 446 6.6 2,770

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

48 

46 

45 

44 

44

43 

48 

49 

51 

53

53 

52 

51 

50 

49

47 

44 

42 

39 

34

23

15 

18 

19 

18

18 

18 

18 

17 

17 

17

Nov.

17 

16 

16 

16 

16

16 

17 

22 

53 

85

46 

33 

33 

33 

32

30 

30 

*30 

29 

29

29 

28 

28 

30 

33

34 

35 

33 

34 

34

Dec.

32 

32 

29 

28 

27

25 

25 

26 

24 

24.

i? b!8 

b£0 

22

24 

26 

32 

28 

24

27 

27 

26 

28 

28

29 

30 

32 

33 

33 

32

Jan.

b30 

b28 

b23 

b23 

b23

[ b25-

1

44 

142 

353 

214 

145

133 

194 

396 

288 

170.

142 

133 

128 

116 

110 

107

Feb.

107 

106 

104 

378 

378

533 

299 

224 

197 

197

230 

197 

197 

209 

238

252 

238 

256 

276 

278

271 

278 

294 

307 

343

376 

399 

373

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 194$ 

ary

ter year 1949-50 .......................

Mar.

351 

*335 

396 

502 

611

460 

396 

381 

348 

312

309 

276 

271 

269 

265

278 

343 

335 

600 S 762

516 

756 

598 

531 

440

387 

353 

364 

408 

494 

654

Apr.

1 

1

1 

1 

1 

1

2 

2

1 

1 

2,

2,

2 

2 

1 

1

Secondfoot -days

1,130 

917 

826

F 107,560

3,192 

7,535 

13,301 

38,291 

59,428 

24,694 

2,956 

1,435 

1,467

155,172

Peak discharge (base, 2,000 sec. -ft. ) . Apr. 27 (1:30

726 

878 

936 

010 

090

967 

948 

740 

590 

527

543 

636 

789 

636 

607

878 

160 

280 

530 

810

030 

210 

940 

980 

070

280 

300 

060 

330 

810

May

1,780 

1,210 

973 

840 

856

862 

745 

685 

726 

901

1,170 

1,610 

1,940 

2,310 

2,680

2,770 

2,680 

2,430 

2,39O 

2.64P

2,750 

2,660 

2,450 

2,730 

2,570

2,360 

2,480 

2,370 

2,230 

2,300 

2,330

Maximum

53 

85 

33

3,020

396 

533 

762 

2,300 

2,770 

2,230 

269 

58 

65

2,770

June

2,230 

2,000 

1,640 

1,440 

1,410

1,340 

936 

740 

750 

764

867 

740 

654 

645 

698

750 

717 

667 

671 

717

721 

628 

550 

466 

390

340 

320 

304 

302 

297

July

1 269 

244 

226 

198 

174

155 

143 

132 

121 

115

113 

104 

97 

87 

80

74 

66 

61 

57 

53

49 

46 

43 

39 

36

34 

32 

30 

28 

26 

24

Aug.

23 

3d 

39

42 

48

48 

48 

47 

47 

46

45 

45 

44 

44 

44

43

42 

41 

41 

46

46 

49 

53 

53 

57

58 

56 

52 

51 

50 

49

Sept.

48 

51 

53 

52 

51

51 

53 

53 

49 

48

46 

44 

43 

41 

43

65 

64 

55 

50 

46

44 

44 

44

. 46 

46

46 

46 

47 

49 

49

**». Mean «-«£

15 36.5 2,240 

16 30.6 1,820 

17 ' 26.6 1,640.

15 295 213,400

103 6,330 

104 269 14,950 

265 429 26,380 

527 1,276 75,950 

685 1,917 117,900 

297 823 48,980 

24 95.4 5,860 

23 46.3 2,850 

41 48.9 2,910

15 425 307,800

a.m.) 2,800 sec. -ft.; May 15 (11:30 p.m.)

3,800 sec.-ft

* Winter discharge measurement made on this day. 

t> Stage-discharge relation affected by Ice.
STANISLAUS RIVER BASIN 269

South Pork Stanislaus River at Strawberry, Halif.

Location.--Water-stage recorder, lat. 38°12', long. 120°01', in sw£ sec. 16, T. 4 N , R 

IsTET, 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 1950. 

J. mile downstream.

October 1911 to January 1917 at site

Average discharge.--12 years (1938-50), 120 second-feet.

Extremes.--Maximum discharge during year, 1,150 second-feet May 27 (gage height, 5.34 

reetj; minimum, 9.4 second-feet July 26.

1911-17, 1938-50: Maximum discharge, 1,870 second-feet June 4, 1945 (gage height, 

6.3 feet), from rating curve extended above 1,000 second-feet on basis of logarithmic 

plotting; minimum, 1.3 second-feet Nov. 22, 23, 1946.

Remarks.--Records excellent. Plow r&gulated by Strawberry Reservoir beginning in 1916 

[capacity, 18,300 acre-feet). No diversion.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1949-5O (gage height, In feet, 

and discharge, In second-feet)

1.4 7.0 2.2 74 3.6 34S 

1.5 11 2.4 99 4.0 478 

1.6 17 2.6 126 4.5 680 

1.8 32 2.8 160 5.1 1,OOO 

2.0 51 3.2 244

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3

4 

5

6 

7 

8 

9 

1O

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

72 

72 

72 

72 

72

72 

70 

70 

70 

70

70 

7O 

70 

70 

32

15 

15 

60 

78 

76

75 

74 

74 

74 

74

74 

66 

59 

59 

59 

59

Nov.

59 

59 

59 

58 

58

56 

56 

55 

55 

55

55 

55 

55 

55 

55

55 

55 

55 

55 

56

56 

56 

55 

55 

55

55 

55 

55 

55 

55

Dec.

55 

55 

56 

58 

58

58 

58 

58 

58 

61

61 

60 

59 

42 

32

32 

32 

32 

32 

32

31 

31

31 

31 

30

30 

30 

26 

22 

23 

23

Jan.

. 23 

38 

42 

42 

42

41 

29 

30 

42 

42

42

41 

41 

41 

41

41 

41 

41 

41 

41

36 

36 

33 

28 

30

35 

34 

34 

35 

34 

33

Feb.

33 

32

31 

38

36

36 

35 

34 

33 

33

33 

33 

32 

32 ' 33

33 

35 

35 

36 

36

47 

59 

59 

59 

61

63 

64 

66

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1949

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

ter year 1949-50 .......................

Mar.

66 

67 

67 

69 

74

73 

70 

68 

69 

68

69 

67 

66 

63 

63

63 

64 

66 

70 

73

68 

72 

70 

69 

72

68 

66 

67 

67 

70 

79

Apr.

84 

94

loo

1O8

116

115 

108 

102 

95 

90

89 

91 

98 

92 

92

106 

122 

139 

166 

207

233 

226 

213 

231 

254

268 

263 

233 

220 

229

Secondfoot-days

2,015

1,673 

1,297

32,439.6

1,150 

1,157 

2,123 

4,584 

13,366 

12,239 

1,331 

1,883 

1,846

44,664

May

207 

160 

149 

139 

134

131 

122

116 

116 

126

142 

164 

194 

274 

302

336 

340 

326 

526 

669

765 

63O 

643 

680 

639

773 

942 

887 

842 

938 

954

Maximum

78 

59

61

841

42 

66 

79 

268 

954 

964 

137 

62 

 62

964

June

964 

896 

703 

688 

738

674 

394 

302 

357 

350

400 

294 

317 

345 

407

417 

397 

369 

394 

441

447 

388 

342 

271 

165

122 

151 

168 

172 

166

July

137 

120 

99 

86 

76

68 

66 

51 

44 

41

39 

35 

31 

27 

23

20 

18 

17 

14 

13

13 

12 

11 

10 

10

24 

41 

45 

45 

45 

50

Aug.

55 

55 

59 

60 

60

60 

60 

60 

60 

60

61 

61 

62 

62 

62

62 

62 

61 

61 

61

61 

61 

61 

62 

62

62 

62 

62 

62 

62 

62

Sept.

62 

62 

62 

62 

62

62 ' 

62 

61 

61 

61

62 

62 

62 

62 

62

62 

62 

62 

62 

62

62 

61 

61 

61 

61

61 

61 

61 

60 

60

Minimum Mean *£%£

15 65. O 4,000 

55 55.8 3,320 

22 41.8 2,570

4.3 88.9 64,350

23 37.1 2,280 

31 41.3 2,290 

63 68.5 4,210 

84 153 9,090 

116 431 26,510 

122 408 24,280 

10 42.9 2,640 

55 60.7 3,730 

60 61.5 3,660

10 122 88,580
270 STANISLAUS RIVER BASIN 

South Fork Stanislaus River near Long Barn, Clalif.

Location.--Water-stage recorder and masonry control, lat. 38°05', long. 120°11', in sec. 

 25, T. 3N..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 

f map).

Drainage area. 67.2 square miles. 

Records available.--November 1937 to September 1950. 

Average discharger.--!? years (1938-50), 81.8 second-feet. 

.Extremes.--Maximum discharge during year, 1,090 second-feet June 21 (gage height, 5.21

reet}; minimum daily, 0.4 second-foot Feb. 27.

1937-50: 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 good above 5 second-feet, poor below. Flow regulated by Lyons and StrawBerry Reservoirs since beginning of record (total usable capacity, 23,800 acre-feet).

Tuolumne Canal (see p.272) diverts at Lyons Dam; Philadelphia Canal (see following page)

diverts 12 miles above station into basin of Middle Pork Stanislaus River. 

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project.

Rating table, water year 1949-50, except period of indefinite stage-discharge relation

(gage height, in feet, and discharge, In second-feet) 

(Shifting-control method used June 26, 27, July 3 to Sept. 30)

0.06 0.7 1.0 43 3.0 334 

.1 1.0 1.2 58 3.5 454 

.2 3.0 1.4 77 4.0 605 

.4 9.0 1.7 109 4.5 785 

.6 18 2.0 148 5.0 995 

.8 29 2.5 230

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

. 5

* 6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

.8 

.9 

1.0 

1.0

1.0 

.S 

.8 

.8 

.9

.8 

.9 

.9 

.9 

.9

.9 

1.0 

1.0 

.9 

.9

1.2 

1.0 

1.0 

1.0 

1.0

1.0 

.9 

.8 

1.0 

1.0 

1.0

Nov.

1.0 

1.0 

1.0 

1.2 

1.4

1.6 

1.6 

2.0 

2.0 

1.2

.8 

.8 

.8 

.8 

.8

.8 

.8 

1.0 

1.0 

1.2

1.0 

1.0 

.9 

.9 

.9

.9 

.8 

.8 

.8 

.8

Dec.

0.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8 

.8

Jan.

0.8 

.8 

.8 

.7 

.7

.7 

.7 

.7 

a. 7 

a. 7

a. 8 

a. 8

)...

a. 9 

a. 9 

a. 9 

a. 9 

.9 

.9

Feb.

1.8 

2.8 

2.8 

3.0 

5.0

8.3 

'4.8 

3.0 

3.5 

3.5

3.2 

3.0 

2.6 

2.6 

2.8

1.8 

1.0 

1.2 

1.0 

.9

.9 

1.0 

1.0 

.8 

e.6

e.5 

e.4 

12

Month

Octo 

Move 

Decei

Ca

Janu 

Febr 

Hare 

Apr!

Uav

June 

July 

Augu 

Sept

tfa

mber. ...................................

mber. ...................................

lendar year 1949 

ary

h. ......................................

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

ter year 1949-50 .......................

Mar.

20 

16 

18 

22 

29

31 

29 

23 

20 

18

18 

18 

13 

9.0 

7.2

6.6 

9.4 

14 

62 

62

48 

72 

64 

88 

81

62 

58 

68 

79 

84 

95

Apr.

98 

98 

a98 

a98 

a99

a99 

a99 

alOO 

alOO 

100

121 

138 

182 

151 

135

135 

147 

152 

166 

195

225 

230 

200 

200 

207

225 

236 

212 

181 

189

Secondfoot -day s

28.8 

31.6 

24.8

19,389.0

24.7 

75.8 

1,244.2 

4,616 

12,347 

10,609.4 

182.1 

75.2 

73.4

29,333.15

May

204 

151 

126 

116 

110

102 

87 

82 

76 

77

91 

107 

133 

176 

242

274 

290 

284 

396 

647

664 

717 

591 

714 

672

761 

914 

881 

801 

893 

968

Maxlnun

1.2 

2.0 

.8

747

12 

95 

236 

968 

941 

58 

3.0 

2.6

968

June

941 

914 

731 

664 

696

734 

449 

319 

347 

356

338 

325 

292 

1 316 

305

361 

356 

321 

124 

192

352 

312 

282 

216, 1«-

22 

9.4 

32 

79 

75

July

58 

36 

16 

3.5 

1.6

4.8 

2.6 

2.6 

2.6 

2.6

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4, 

2.6.

2.6 

2.|6 

2.6 

2.6 

2.6 

2.6

Aug.

2.6 

2.6 

2.6 

2.6 

2.4

2.4 

2.6 

2.6 

2.8 

3.0

3.0 

2.8 

2.8 

2.6 

2.4

2.4 

2.2 

2.0 

2.0 

£.0

2.0 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.4 

2.4 

2.4 

2.4

Sept.

2.4 

2.4 

2.6 

2.6 

2.4

2.4 

2.6 

2. .6 

2.6 

2.6

2.6 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4.

2.4 

2.4 

2.4 

2.4 

2.4

m~<_,_ u.on Runoff In Minimum Mean aore.feet

0.8 0.93 57 

.8 1.05 63 

.8 .80 49

.4 53.1 38,470

.80 49 

.4 2.71 150 

6.6 40.1' 2,470 

98 154 9,160 

76 398 24,490 

9.4 354 21,040 

1.6 5.87 361 

2.0 2.43 149 

2.4 2.45 146

.4 80.4 58,180

a Ho gage-height record; discharge Interpolated.

e"Stage-discharge relation indefinite; discharge computed on basis of recorded range In stage.
STANISLAUS RIVER BASIN 271

Philadelphia Canal near Strawberry, Calif.

Location.--Water-stage recorder and concrete control, lat. 38°11', long. 120°03', in sec. 

3u, T. 4 N., R. 18 E., 250 feet downstream from diversion dam on South Pork 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 1950. 

Average discharge. 11 years, 43.7 second-feet.

Extremes.--Maximum daily discharge during year, 58 second-feet on several days in June, 

August, September; no flow May 23-26, June 1-3, 6-9, 13.

1939-50: Maximum daily discharge, 64 second-feet Bee. 11, 1941; no flow at times 

during each year except 1943, 1946, 1947.

Remarks.--Records excellent. Canal diverts from right bank of South Pork Stanislaus River 

ror power development in Spring Gap power plant of Pacific Gas & Electric Co.; tailrace 

empties into Middle Pork Stanislaus River above station at Sand Bar Plat.

Cooperation. Wats

taineO in conne

Disc

Day

i

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

54 

54 

54 

54 

54

54 

54 

54 

54 

54

54 

54 

54 

54 

22

2.2 

2.2 

34 

55 

55

55 

55 

55 

55 

55

55 

55 

55 

55 

55 

55

Nov.

55 

55 

55 

55 

55

55 

55 

55 

54

53

53 

54 

55 

55 

55

55 

54 

54 

54 

54

54 

54 

54 

54 

54

54 

54 

55 

55 

55

sr-?tage recorder record, furnish 

>ction with a Federal Power Commi

harge, In second-feet, water year Oc

Dec.

55 

55 

55 

55 

55

55 

55 

54 

54 

55

55 

54 

54 

42 

30

30 

30 

30 

30 

30

30 

24 

20 

20 

20

20 

20 

18 

9.9 

9.9 

9.9

Jan.

9.9 

21 

32 

31 

30

27 

16 

27 

34 

30

30 

30 

31 

29 

31

30 

30 

30 

30 

30

25 

20 

20 

19 

20

32 

30 

30 

30 

29 

30

Feb.

31 

31 

29 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

38 

49 

52 

54 

54

54 

5'4

Month

Octo 

Nove 

Dece

Ca

janu 

Febr 

Marc

Aprl

June 

July 

Augu 

Sept

Wa

her. ....................................

 ber. ...................................

nber. ...................................

lendar year 194S

ter year 1949-50 .......................

Mar.

54 

54 

54

54 

54

54 

54 

54 

55

55

56 

56 

55 

54 

55

55 

55 

55 

55 

54

53 

53 

53 

53 

52

52 

52 

52 

52 

53 

53

ed by Pacific Gas & Electric Co., obssion project.

tober 1949 to September 1950

Apr.

53 

54 

35 

2.3 

2.3

35 

53 

53 

52 

51

50

52 

52 

52

52 

53 

53 

54 

54

54 

52 

51 

53 

55

54 

52 

52 

52 

52

Secondfoot-days

1,531.4 

1,633 

1,134.7

11,417.7

843.9 

1,010 

1,670 

1,440.6 

1,208.8 

921.5 

1,000.4 

1,778 

1,738

15,910.3

May

52 

51 

52 

51 

50

52 

52 

52 

53 

53

53 

54 

55 

52 

54

53 

53 

54 

54 

53

52 

20 

0 

0 

0

0 

12 

23 

24 

20 

4.8

Maximum

55 

55 

55

58

34 

54 

56 

55 

55 

58 

57 

58 

58

58

June

0 

0 

0 

13 

6.5

ao 

ao 

aO 

aO 

a8. 5

al3 

a!4 

aO 

a4.5 

32

40 

50 

54 

55 

55

57 

58 

58 

57 

56

58 

58 

58 

58 

58

July

57 

57 

57 

57 

57

57 

55 

46 

37 

34

33 

32 

2S 

20 

18

16 

14 

14 

14 

11

10 

10 

10 

9.6 

8.8

20 

41 

43 

43 

43 

48

Aug.

Minimum Mean

2.2 49.4 

53 54.4 

9.9 36.6

0 31.3

9.9 27.2 

29 36.1 

52 53.9 

2.3 48.0 

0 39.0 

0 30.7 

8.8 32.3 

51 57.4 

57 57.9

0 43.6

54 

54 

56 

58 

58

58 

58 

58 

58 

58

51 

58 

58 

58 

58

58 

58 

57 

57 

57

58' 

58 

58 

58 

58

58 

58 

58 

58 

58 

58

Sept.

58 

53 

58 

58 

58

58 

58 

53 

58 

58

58 

5S 

58 

58 

53

58 

58 

58 

58 

58

58 

58 

58 

58 

58

58 

58 

57 

57 

58

Runoff In 

acre-feet

3,040 

3,240 

2,250

22,650

1,670 

2,000 

3,310 

2,860 

2,400 

1,830 

1,980 

3,530 

3,450

31,560

a No gage-height record; discharge computed on basis of powerhouse records.
272 STANISLAUS RIVER BASIN

Tuolumne Canal near Long Barn, Calif.

Location.--Water-stage recorder and concrete control, lat. 38°05', long. 120°11', in sec. 

SFTT. 3 N., R. 16 E., 200 feet dovmstream 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 1950. 

Average discharge.--13 years, 22.0 second-feet.

Extremes.--Maximum daily discharge during year, 41 second-feet June 19, 20; minimum daily, 

Y'.B second-feet Dec. 4.

1937-50; Maximum daily discharge, 54 second-feet June 26, 27, July 1, 1938, June 16- 

20, 22, 25, 1948; no flow at times.

Remarks. Records excellent. Canal diverts from left bank of South Fork Stanislaus River 

lor power and domestic supply in vicinity of Sonora.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

ZO

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

25 

25 

25 

25 

22

21 

21 

21 

21 

19

18

15 

15 

16 

16

16 

16 

16 

15 

14

13 

14 

14 

M

14

10 

14 

14 

14 

14 

14

Nov.

14 

14 

14- 

14 

14

14 

14 

14 

12 

10

9.4 

9.4 

9.4 

9.4 

8.0

8.2 

8.2 

8.0 

8.0 

8.0

8.2 

8.2 

8.2 

8.0 

8.0

7.8 

7.8 

7.8 

7.8 

7.8

Dec.

7.8 

7.8 

7.8 

7.6 

7.8

8.0 

8.2 

8.2 

8.2

a, 2

8.2 

8.2 

14

15 

15

15 

15 

14 

14 

14

14 

14 

12

11 

11

11 

11 

11 

11 

11 

11

Jan.

11 

16 

18 

18 

a!8

al8 

a!8 

al8 

a!8 

al8

al8 

al8 

al8 

a!8 

a!8

al8 

al8 

ale 

18 

18

18

18 

13 

14 

18

18 

al8 

al8 

18 

18 

18

Feb.

18 

18 

18 

18 

18

18 

18 

18 

18 

18

18 

18 

18 

18 

18

18 

18 

18 

18 

18

18 

18 

26 

32 

34

34 

34 

34

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

May.

June 

July 

Avigu 

Sept

Wa

lendar year 194!

ter year 1949-50 .......................

Mar.

34 

34 

34 

34 

34

34 

34 

34 

34 

34

34 

34 

34 

34 

34

33 

33 

34 

34 

35

35 

35 

35 

34 

33

33 

33 

34 

33 

31 

31

Apr.

31 

30 

32 

a32 

a32

332 

a31 

a31 

a31

31

30 

30 

30 

30 

30

30 

30 

30 

31 

32

32 

33 

34 

34 

35

. 32 

29 

29 

29 

29

Secondfoot-days

531 

299.6 

340.0

8,283.0

540 

590 

1,046 

932 

973 

1,167 

885 

1,099 

897

9,1899.6

May

29 

29 

29 

29 

29

30 

31 

32 

32 

32

32 

32 

32 

32 

32

30 

29 

29 

29 

33

32 

34 

34 

34 

33

33 

33 

33 

32 

32 

32

Maximum

25 

14 

15

45

18 

34 

35 

35 

34 

41 

39 

40 

39

41

June

34 

38 

39 

39 

39

39 

38 

37 

38 

38

38 

37 

39 

39 

40

40 

40 

40 

41 

41

40 

40 

40 

40 

39

39 

38 

39 

39 

39

July

Minimum

10 

7.8 

7.6

2.5

11 

18 

31 

29 

29 

34 

24 

33 

22

7.6

39 

38 

36 

28 

25

24 

24 

25 

25 

25

25 

25 

25 

25 

25

25 

24 

25 

25 

25

25 

24 

24 

26 

33

34 

34 

36 

37 

37 

37

Aug.

39 

40 

39 

39 

39

39 

39 

40 

38 

35

34 

34 

33 

34 

34

34 

34 

34 

34 

34

34 

34 

34 

34 

34

34 

33 

34 

34 

34 

34

Mean

17.1 

9.99 

11.0

22.7

17.4 

21.1 

33.7 

31.1 

31.4 

38.9 

28.5 

35.5 

29.9

25.5

Sept.

34 

34 

33 

33 

36

39 

38 

37 

37 

37

38 

38 

38 

30 

28

29 

29 

29 

28 

24

23 

E3 

23 

23 

23

23 

24 

22 

22 

22

Runoff In 

acre-feet

1,050 

594 

674

16,420

1,070 

1,170 

2,070 

1,850 

1,930 

2,310 1,760' 

2,180 

1,780

18,440

a Ho gage-height record; discharge Interpolated.
STANISLAUS RIVER BASIN 273

South San Joaquin Canal near Knights Ferry, Calif.

Location. Water-stage recorder and concrete control, lat, 37°51'20", long. 120°38'15", in 

sec. 15, T. IS., R. 12 E., 0.8 mile downstream from head gate at Goodwin Dam and 

4 miles upstream from Knights Perry. Altitude of gage, about 345 feet (from topographic 

map).

Records available.--May 1914 to September 1950.

Average discharge.--31 years (1914-30, 1931-32, 1936-50), 372 second-feet.

Extremes.--Maximum daily discharge during year, 1,150 second-feet June 14-17, 19-21; no 

 flow Nov. 6-8, Nov. 11 to Dec. 9.

1914-50: Maximum daily discharge, that of June 14-17, 19-21, 1950; no flow at times 

each year.

Remarks. Records good. 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 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.1 

5.1 

3.0 

1.3 

1.3

1.3 

1.1 

2.6 

4.7 

1.0

.8 

.8 

.7 

.7 

.7

.'? 

1.3 

2.1 

2.1 

2.1

2.1 

2.8 

4.2 

2.3 

2.8

3.2 

3.7 

3.5 

3.4 

6.5 

4.6

Nov.

3.4 

2.0 

.8 

2.0 

4.6

0 

O 

O 

.1

.1

O 

0 

O 

O 

O

O 

O 

O 

0 

0

0 

0 

0 

O 

O

0 

O 

0 

O 

O

Dec.

0 

O 

O 

O 

O

O 

0 

0 

0

1.1

2.8 

2.8 

2.8 

2.6 

2.6

2.6 

1.1 

.3 

.1 

35

177 

151 

184 

179 

26

.6 

1.1 

128 

189 

189 

70

Jan.

1.0 

122 

210 

.210 

214

216 

104 

15 

131 

224

242 

236 

234 

266 

120

208 

269 

2O3 

221 

142

.6 

.5 

.5 

.4 

.4

.3 

.2

104 

265 

371 

439

Feb.

444 

438 

443 

399 

408

453 

440 

440 

442 

439

442 

438 

438 

216

3.1

4.8

4.8 

4.8 

3.8 

.4

.4 

2.4 

3.9 

3.9 

3.9

3.2 

.5 

2.0

Month

Octo 

Move

Dace

Ca

Janu. 

Pebr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lender year 194!

ter year 1949-50 .......................

Mar.-

3.7 

3.7 

3.O 

1.5 

.6

124 

218 

217 

269 

316

397 

500 

556 

567 

679

815 

858 

801 

795 

738

767 

826 

872 

652 

3O4

271 

264 

259 

254 

253 

310

Apr.

358 

439 

1.0 

.6 

96

647 

976 

783 

444 

288

3S6 

470 

569 

693 

758

77O 

807 

880 

930 

964

970 

980 

966 

1,000 

1,050

1,090 

1,120 

1,130 

1,130 

1,^30

Secondfoot -day 6

75.6 

13.0 

1,348.5

141,390.6

4,769.9 

5,921.9 

12,894.5 

21,825.6 

31,482 

33,044 

24,965 

19,973 

9,881.7

166,194,7

May

1,130 

1,120 

1,100 

1,080 

1,08O

1,000 

954 

898 

878 

905

964 

1,OOO 

1,000 

959 

924

920 

984 

1,040 

1,040 

1,070

1,090 

1,100 

1,070 

986 

1,010

1,040 

1,040 

1,060 

1,O60 

1,020 

960

Maximum

6.5 

4.6 

189

1,O6O

439 

*5S 

872 

1,130 

1,130 

1,150 

1,090 

711 

580

1,150

June

935 

953 

1,020 

1,080 

1,120

1,060 

1,130 

1,110 

1,070 

1,080

1,120 

1,130 

1,140 

1,150 

1,150

1,150 

1,150 

1,140 

1,150 

1,150

1,150 

1,140 

1,140 

1,140 

1,140

1,130 

1,090 

966 

1,080 

1,080

July

1,080 

1,090 

1,090 

1,090 

1,010

920 

847 

780 

780 

781

780 

779 

777 

779 

783

781 

781 

783 

784 

755

709 

704 

700 

704 

702

700 

697 

702 

699 

699 

699

Minimum

0.7 

O 

0

O

.2 

.4 

.6 

.6 

878 

935 

697 

580 

4.0

0

Aug.

696 

706 

707 

706 

711

710 

709 

707 

704 

704

703 

70O 

697 

695 

693

623 

592 

595 

594 

591

588 

587 

584 

584 

587

587 

584 

581 

580 

584 

584

Mean

2.44 

.43 

43.5

387

154 

211 

416 

728 

1,016 

1,101 

805 

 644 

329

455

Sept.

580 

577 

573 

570 

570

567" 

564 

557 

555 

552

552 

547 

547 

517 

244

212 

268 

3O8 

418 

82

4.0 

10 

11 

9.7 

40

IQP 

101 

91 

81 

74

Runoff In 

acre-feet

150 

26 

2,670

280,400

9,460 

11,750 

25,580 

43,290 

62,440 

63,540 

49,520 

39,620 

19,600

329,600
274 STANISLAUS RIVER BASIN

Oakdale Canal near Knights Perry, Calif.

Location. Water-stage recorder, lat. 37°51'30", long. 120°38'00", in SE£ sec. 10, T. 1 S., 

K. 12 E., 1,800 feet downstream from head gate at Goodwin Dam and 4 miles upstream from 

Knights Perry. Altitude of gage, about 350 feet (from topographic map).

Records available. May 1914 to September 1950.

Average discharge. 32 years (1914-32, 1936-50), 119 second-feet.

Extremes. Maximum daily discharge during year, 484 second-feet June 6, 13; no flow during 

several months.

1914-50: Maximum daily discharge, that of June 6, 13, 1950; no flow during periods 

in each year.

Remarks. Records good except those for Oct. 1 to Mar. 11, which are poor. Canal diverts 

water from left bank of Stanislaus River at Goodwin Dam for irrigation in Oakdale 

irrigation district.

Cooperation. Gage-height record and 12 discharge measurements furnished by Oakdale Irrigation District.

Discharge , In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

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.

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

7.8 

4.6 

4.0 

3.7

Nov.

4.0 

3.7 

3.7 

3.7 

3.7

3.7 

2.0 

2.9 

3.1 

2.3

2.2

3.1 

1.9 

0 

0

0 

O 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec. Jan.

0 

0 

0 

0 

0

o

3.3 

3.1 

.2 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

o

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

7.3 

5.4 

0

0 

0 

0 

0 

0

0 

0 

3.0

Month

Ooto 

Move

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

ter year 1949-50 .......................

Mar.

5.1

0 

0 

0 

0

o

0 

0 

0 

0

0 

47 

124 

239 

251

357 

357 

376 

402 

403

402 

402 

366 

0 

0

0 

0 

0 

0 

0 

0

Apr.

0 

27 

195 

341 

420

429 

432 

62 

2.8 

2.3

2.2 

33 

195 

327 

418

433 

433 

447 

455 

455

464 

467 

472 

475 

476

475 

475 

474 

474 

475

Secondfoot-days

20.1 

40.0 

0

56,485.1

6.6 

15.7 

3,731.1 

9,836.3 

14,553 

14,387 

11,804 

9,982 

4,847.8

69,223.6

May

476 

475 

434 

381 

451

477 

475 

476 

476 

477

478 

479 

475 

478 

478

476 

476 

476 

474 

473

470 

472 

470 

472 

472

471 

472 

474 

471 

472 

476

Maximum

7.8 

4.0 

0

460

3.3 

7.3 

403 

476 

479 

484 

480 

346 

294

484

June

479 

478 

475 

474 

479

484 

476 

476 

478 

478

481 

483 

484 

483 

483

482 

479 

479 

479 

478

482 

479 

479 

482 

481

482 

482 

480 

476 

476

July

479 

480 

480 

480 

450

417 

394 

369 

370 

372

372 

371 

371 

371 

373

372 

372 

373 

374 

363

347 

346 

- 346 

348

347

346 

346 

334 

342 

344 

345

Minimum

0 

0 

0

0

0 

0 

0 

0 

381 

474 

342 

295 

0

0

Aug.

344 

346 

344 

344 

346

346 

346 

346 

344 

342

342 

340 

338 

336 

335

316 

305 

307 

306 

306

305 

305 

304 

300 

300

301 

301 

298 

295 

298 

296

Mean

0.65 

1.33 

0

155

.21 

.56 

120 

328 

469 

480 

381 

322 

162

190

Sept.

294 

292 

290 

289 

287

285 

284 

279 

278 

279

279 

276 

276 

269 

109

80 

68 

0 

0 

1.8

0 

0 

0 

0 

125

177 

115 

92 

69 

54

Runoff In 

acre-feet

40 

79 

0 .

112,000

13 

31 

7,400 

19,510 

28,870 

28,540 

23,410 

19,800 

9,620

137,300
CALAVERAS RIVER BASIN 275

Calaveras River at Jenny Llnd, Calif.

Location. Water-stage recorder, lat. 38°05', long. 120°52', in SW"£ sec. 22, T. 3 N., R. 

lu &., at bridge on Milton road, 0.2 mile south of Jenny Lind and 6.5 miles downstream 

from Cosgrove Creek. Altitude of gage, about 220 feet (from topographic map).

Drainage area. 395 square miles.

Kecoras available. January 1907 to September 1950.

Average aisenar'ge'. 41 years (1908-23, 1924-50), 242 second-feet.

extremes. Maximum discharge during year, 3,740 second-feet Feb. 6 (gage height, 9.32 

reet); no flow during several months.

1907-50: Maximum discharge observed, 50,000 second-feet (revised) Jan. 31, 1911 

(gage height, 21.0 feet, present datum); no flow during late summers of most years.

Revisions. The maximum discharge observed for the water year 1911 has been revised 

to bu.uuo second-feet Jan. 31, 1911, superseding figure published in Water-Supply Paper 

311 and others.

Remarks. Records good. Plow regulated by Hogan Reservoir at Stockton flood-control dam 

Beginning in 1930 (usable capacity, 75,000 acre-feet), by Bingham Reservoir (capacity, 

775 acre-feet) on North Pork Calaveras River, and by some seepage of North Pork Stanislaus River water from diversion canals and reservoirs; normally not over 1.5 secondfeet.

Revisions (water years). if 1011: 1907-10, 1912-28. Revised figures of discharge, in 

second-root, ror nign-water periods in the water year 1911, superseding those published 

in Sfater-Supply Paper 311 and others are given herewith:

Jan. 29........3,060

30.......26,100

31.......31,400

Feb. 1........6.460

Mar. 6........4,150

7.......IS,400

Mar. 8........13,500

9........ 7,040

Month

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

Calendar year 1911 . . .

Maximum

18,400

31,400

Minimum

470

10

Mean

1,370

2,670

749

Runoff In 

acre-feet

234,000

76,100

164,000

542,000

Discharge, in seoond-feet. water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

25

27

28

29

30

31

Oot.

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

0

0

0

0

1£

NOT.

23

25

22

18

24

8.2

.4

O

0

0

0

0

0

0

0

0

0

16

38

9.0

,1

0

16

7.0

4.9

0

O

0

60

6.6

-

Dec.

4.8

62

8.2

0

0

0

0

0

0

0

0

0

0

0

0

11

20

24

36

84

75

52

39

32

28

26

23

22

26

75

64

Jan.

s.s

.2

0

0

0

0

14

80

77

77

147

252

183

255

337

331

2,630

2,810

1,860

637

344

309

330

738

521

302

204

L,500

1,560

653

341

Feb.

243

198

166

1,440

3,480

3,610

3,280

2,700

1,610

623

485

371

298

258

229

213

198

183

168

160

151

146

137

132

126

121

119

116

_

- _

-

Month

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

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

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

Calendar year 1949 ......................

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

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

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

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

 ay. ..................................... ..

June

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

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

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

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

Mar.

114

109

100

73

10

7.6

7.6

7.6

7.6

7.6

7.6

7.6

8.6

8.0

7.6

7.2

7.2

7.6

7.6

6.6

9.2

7.6

7.6

104

78

27

18

12

9.2

7.2

6.0

Apr.

3.7

2.5

1.0

.8

.7

.7

.8

33

195

285

295

386

413

409

409

406

394

378

363

337

316

292

252

232

223

216

210

198

189

183 .

Seoondfoot-days

i.e

278.2

710.0

39,633.7

16,501.0

20,946

807.4

6 , 624 . 2

4,194

3 5X6

3 491

3*415

259.1

60,745.7

May

183

180

180

174

171

166

157

166

163

160

154

148

146

.143

140

134

132

126

121

114

107

98

92

92

100

124

154

54

66

109

140

Maximum

1.8

60

84

1,270

S

pin fOJL\J

3,610

114

413

183

137

163

171

94

3,610

June

134

107

68

92

107

107

104

102

124

112

82

98

102

129

126

124

119

121

129

132

132

137

137

137

132

129

126

124

124

121

Minimum

0

0

0

0

0

T 1 K J.J.O

6.0

.7

54

68

etc CD

64

0

0

July

126

126

134

129

124

121

116

116

116

116

163

163

137

102

102

102

104

116

116

112

112

28

92

104

104

102

102

102

102

102

102

Aug.

100

100

100

114

112

112

109

109

109

107

107

107

92

66

64

69

92

107

132

171

168

166

160

88

84

121

119

116

112

104

98

Mean

0.06

9.27

22.9

109

evo OOc

748

26 .0

*>y\ ££4

135

117

113

110

8.64

166

Sept.

94

90

69

5.6

.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Runoff in 

acre-feet

3.6

552

1,410

78,620

32 730

41^550

1,600

13,140

8,320

6^960

6,920

6,770

514

120,300 .
276 CALAVERAS RIVER BASIH

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 1950.

Average discharge. 21 years, 7.17 second-feet.

Extremes. --Maximum discharge during year, 770 second-feet Feb. 4 (gage height, 5.31 feet); 

no now for several months .

1929-50: Maximum discharge, 3,180 second-feet Dec. 21, 1945 (gage height, 8.38 

feet), from rating curve extended above 1,400 second-feet on basis of velocity-area 

studies and logarithmic plotting; no flow for several months each year.

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

Mo storage or diversion above station.

Rating table, water year 1949-5O (gage height, in feet, 

and discharge, in second-feet)

1.9

2.1

2.2

2.3

0 

.2 

.8

-2.6

2.4

2.5

2.6

2.7

5.2 

8.6

13

20

2.9 

3.1 

3.3 

3.5

39

63

91

126

3.7 

3.9 

4.2

4.4

168

218

304

370

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

2O

21 

22 

23 

24 

25

26 

27 

28 

29 

50 

31

Oct. Nov. Dec. Jan.

0 

0 

O 

O 

O

O 

0 

O 

0 

.1

2.0 

1.6 

.5 

19 

3.0

44 

219 

4O 

16 

7.9

5.6 

12 

41 

25 

9.0

5.2 

9.5 

210 

43 

18 

9.9

Feb.

7.5 

5.6 

5.0 

353 

93

164 

41 

24 

14 

14

17 

9.4 

7.5 

6.8 

5.9

5.2 

4.7 

4.1 

3.5 

3.3

2.8 

2.8 

2.6 

2.3

2.1

1.9 

1.9 

1.8

Month

Octo 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 194S 

ary

.......................

ter year 1949-50 .......................

Mar.

1.6 

1.6 

1.4 

1.4 

1.2

l.O

.9 

.9 

.9

.8

1.2 

1.8 

1.0 

.8 

.7

.5 

.9

1.4 

1.9 

4.4

1.8 

1.9 

2.6 

125 

53

19 

1O 

7.2 

5.2 

4.1 

3.3

Apr.

2.6 

2.1 

1.9 

1.8 

1.6

1.8 

2.3 

48 

a24 

a6

a5 

a4 

a3 

a2 

a2

al.5 

al.5 

al.2 

al.2 

1.0

.8 

.8 

.5- 

.5 

.4

.4 

.4 

.2 

.2 

.2

Secondfoot -days

0 

0 

0

1,413.9

741.3 

806.7 

259.4 

118.9 

4.4 

0 

0 

0 

0

1,930.T

May

0.2 

.4 

.8 

.8 

.5

.3 

.2 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

0 

O

O 

O 

O 

0 

0

0 

0 

0

o

0

o

Maximum

0 

O 

O

333

219 

353 

125 

48 

.8 

O 

O 

O 

O

353

June July

Minimum

O 

0 

O

0

0 

1.8 

.5 '.2 

0 

0 

0 

0 

O

O

Aug.

Mean

o 

o 

o

3.87

23.9 

28.8 

8.37 

3.96 

.14 

O 

0 

0

o

5.29

Sept.

Runoff in 

acre-feet

0 

O 

0

2,8OO

1,470 

1,600 

515 

236 

8.7 

O 

0 

0 

0

3,830

Peak discharge (base. 510 sec.-ft.). Jan. 17 (2 a.m.) 398 sec.-ft.j Jan. 28 (2:30 a.m.) 615 seo.- 

ft.j Fe.b. 4 (5:3O p.m.) 770 sec.-ft. j Mar. 24 (5 p.m.) 398 sec.-ft.

a No gage-height record; discharge computed on basis of weather records and records for Calaveras 

River at Jenny Llnd.
CALAVERAS RIVER BASIN 

Stockton diverting canal at Stockton, Calif.

277

Location. Water-stage recorder, lat. 37°59', long. 121 °17', in Campo de Los "'Franceses 

urant, 200 feet downstream from bridge on Sanguinetti Lane, at north edge of Stockton, 

San Joaquin County. Altitude of gage, about 21 feet (from topographic map).

Records available. January 1944 to September 1950.

Extremes.--Maximum discharge during year, 5,720 second-feet Feb. 5 (gage height, 11.63 

reet); no flow for several months.

1944-50: Maximum discharge, 7,820 second-feet Feb. 3, 1945 (gage height, 12.9 feet, 

present datum, from floodmarks); no flow for several months each year.

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

canal carries practically entire flow of Calaveras River (see p.275), diverting from 

Mormon Slough1 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. Three discharge measurements furnished by State of California.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

2.18

2.2

2.3

2.4

2.5

2.6

2.7

.1

.8

1.9

3.7

6.3

10

2.9 

5.1 

3.3 

3.6 

3.9 

4.2 

4.6

24

48

81

150

240

355

522

5.0

6.0

7.0

8.0

9.0

10.0

11.1

700

1,180

1,730

2,350

3,100

3,970

5,110

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

G 

7 

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. Hov.

'

Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

37 

111 

92 

284

251 

2,210 

3,480 

2,020 

896

371 

251 

227 

412 

539

307 

183 

1,880 

1,970 

840 

395

Feb.

237 

164 

116 

1,230 

5,040

4,320 

3,590 

2,510 

1,720 

755

570 

367 

258 

198 

164

138 

120 

107 

92 

79

72 

63 

57 

51 

47

44 

40 

38

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June

July 

Augu 

Sept

Wa

lendar year 1949

u&ry f ........

ter year 1949-50 .......................

Mar.

36 

33 

26 

19 

12

1.6 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

37

22 

3.6 

3.6 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

69

164 

192 

258 

265 

272

272 

265 

251 

240 

224

204 

192 

164 

135 

116

107 

100 

94 

85 

81

Secondfoot -days

0 

0 

0

30,340.4

16,756 

22,187 

193.8 

3,750 

821.3 

7.9 

53.3 

130 

0

43,899.3

May

77 

79 

74 

70 

65

58 

54 

54 

50 

42

38 

33 

30 

30 

26

15 

14 

8.5 

3.7 .1'

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

0

2,000

3,480 

5,040 

37 

272 

79 

4.1 

18 

40 

0

5,040

June

0 

0 

1.8 

1.0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

4.1 

1.0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

0 

0 

0 

0 

0

0 * 

0 

0 

0 

0

0 

18 5.0" 

18 

1.3

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

11

Minimum

0 

0 

0

0

0 

38 

0 

0 

0 

0 

0 

0 

0

0

Aug.

5 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

20 

40 

30 

20 

10

5 

0 

0 

0 

0 

0

Mean

0 

0

o

83.1

541 

792 

6.25 

125 

26.5 

.26 

1.72 

4.19 

0

120

Sept.

SSSSfcit

0 

0 

0

60,180

33,240 

44,010 

384 

7,440 

1,630 

16 

106 

258 

0

87,080

Note. No gage-height record Aug. 1-31; discharge computed on basis of recorded range in stage and 

unpublished records for Mormon Slough at Bellota.
278 BEAR CREEK BASIN

Bear Creek near Lockeford, Calif.

Location.-j-Water-stage recorder and concrete control, lat. 38°09'15", long. 121°08'15", 

in NwiS"B£ 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 1950. 

uctooer j.y2t> co November 1930 at site 3 miles downstream (records not equivalent).

Extremes. Maximum discharge during year, 1,030 second-feet Feb. 4 (gage height, 10.76 

reet); no flow for several months.

1930-33. 1943-50: 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. No storage or diversion above station.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, In second-feet)

2.3

2.4

2.5

2.6

0

.3 

1.1 

2.8

2.7

2.8

2.9

3.0

5.6

9.4

15

22

3.1 

3.3 

3.7 

4.3

29

46

81

138

5.0 208

5.8 296

6.8 419

7.8 552

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

G 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

*

Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

2.5 

5.6

179 

44 

48 

13 

5.9

3.3 

2.3 

11 

32 

7.8

3,3 

4.4 

346 

49 

20 

10

Feb.

7.0 

5.0 

3,8 

546

311

494 

69 

36 

23 

43

55 

20 

13 

9.4 

7.8

7.0 

5.9 

5.3 

4.4 

3.8

3.3 

3.0 

2.8 

2.6 

2.3

2.3 

2.3

1.8

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr

Hare 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949

uai*y ....... ........... . .*..

\

ter year 1949-50 .......................

Mar.

1.6 

1.5 

1.1 

1.0 

 .9

.8 

.7 

.6 

.6 

.6

.5 

.4 

.2

.1 

.1

.1 

.1 

0 

0 

0

0 

0 

.2 

18 

39

12 

6.6 

4.4 

2.8

2.1 

1.5

Apr.

1.1 

.9 

.6 

.5 

.4

.4 

.7 

.9 

6.8 

5.9

2.8 

1.8 

1.2 

1.1 

.9

.7 

.4 

.4 

.6 

.4

.2

.1 

.3 

.2 

.2

.1 

.1 

0 

0 

0

Secondfoot -days

0 

0 

0

1,840.9

787.1 

1,689.8 

97.5 

29.7 

.2 

' ,8 

,1 

.1 

0

2,605.3

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.1 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0 

0 

0

Maximum

0 

0 

0

655

346 

546 

39 

6.8 

.1 

.4 

,1 

.1 

0

546

June

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

.2 

.4

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

July

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0

0

0 

1.8 

0 

0 

0 

0 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

.1 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0 

0 

0

5.04

25.4 

60.4 

3.15 

.99 

.01 

.03 

.003 

.003 

0

7.14

Sept.

Runoff In 

aore-fe«t

0 

0 

0

3,660

1,560 

3,350 

193 

59 

.4 

1.6 

.2 

.2 

0

5,1-60

Peak discharge (base. 220 

ft.) Feb. 4 (9:30 p.m.) 1,03

seeu-f*.}. Jan. 17 (10 a.m.) 225 sec.-ft.j Jan. 28 (6t3O a, 

u eec.-rt.

o.) 655 sec.-
MOKELUMNE RIVER BASIN 279

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 1950.

Extremes.--Maximum contents observed during year, 140,000 acre-feet June 25 to July 6

 (elevation, 3,958.0); minimum observed, 11,400 acre-feet Jan. 21 (elevation, 3,761.9 

feet).

1931-50: Maximum contents observed, 140,000 acre-feet on several days in July 1948, 

June 1949, June and July 1950 (elevation, 3,958.0 feet); 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

 ETSgah in March 1931. Capacity, 139,000 acre-feet between elevations 3,707.25 feet 

(powerhouse intake) and 3,957.0 feet (upper operating limit, 1 foot below top of 

radial 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. 285). ; 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 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

50

31

Oct.

73,000

72,500

71,800

70,800

69,800

68,700

67,500

66,600

65,800

65,100

64,100

63,100

62,200

61,000

60,100

59,000

58,000

57,100

56,000

54,900

53, BOO

52,800

51,800

50,800

49,800

48,800

47,900

46,800

45,900

45,300

44,500

Nov.

43,600

42,600

41,600

40,600

39,800

38,800

37,900

37,000

36,100

35,500

34,700

33,800

33,000

32,400

31,800

31,100

29,900

29,000

28,200

26,800

26,800

26,000

25,700

25,600

25,500

25,500

25,600

25,500

25,200

24,900

-

Dec.

24,600

24,400

24,400

24,400

24,400

24,100

23,600

23,400

23,400

23,400

23,400

22,200

23,000

22,700

22,400

22,000

21,600

21,500

21,100

20,900

20,300

19,800

19,400

19,200

19,100

19,100

18,800

18,200

17,400

17,100

16,900

Jan.

16,900

16,900

16,800

16,500

16,300

16,200

16,200

16 , 200

16,100

16,000

15,700

15,300

14,600

14,000

13,700

13,200

12,600

12,300

12,000

11,700

11,400

14 ,'300

14,600

17,100

17,300

17,000

16,700

16,500

15,800

15,100

14,400

Feb.

13,700

14,000

13,300

13,600

14,500

15,100

17,000

17,500

17,500

.17,600

17,600

17,900

17,700

17,700

17,300

,17,100

17,100

17,300

17,800

17,800

18,000

18,000

18,000

IS, 100

18,200

18,400

18,800

19,200

-

_

-

Mar.

19,400

19,700

19,900

19,900

20,300

20,600

20,700

20,700

20,600

20,400

20,100

20,OOO

19,700

19,400

19,100

18,800

18,600

18,600

18,600

20,000

20,600

21,200

21,900

22,400

22,800

23,100

23,400

23,800

23,700

23,900

24,500

Apr.

25,400

26,400

27,700

29,300

31,100

32,600

34,300

35,800

37,000

37,900

38,800

39,700

41,100

41,600

43,200

44,900

46,300

48,500

50,800

54,000

57,600

61,500

65,000

68,400

71,400

75,500

79,200

82,900

85,900

88,700

-

May

91,700

93,100

94,500

93,900

94,100

94,400

94,400

94,400

94,20.0

94,300

94,700

95,700

97,400

99,900

103,200

107,200

111,000

114,800

118,000

120,800

125,400

129,700

135,100

135,400

137,100

136,300

136,000

136,200

135,800

136,100

136,500

June

135,800

135,000

134,800

134,700

135,000

136,000

135,300

134,900

136,000

157,600

139,500

139,400

139,400

139,400

139,400

139,400

139,400

139,400

139,400

139,400

139,400

139,400

139,400

139,400

140,000

140,000

140,000

140,000

140,000

140,000

-

July

140,000

140,000

140,000

140,000

140,000

140,000

139,900

139,900

140,000

139,900

139,600

139,100

138,600

138,100

137,500

136,800

136,100

135,800

135,000

134,200

133,400

133,200

133,200

132,900

132,300

132,000

131,900

131,900

131,900

131,900

132,400

Aug.

132,700

133,300

133,400

133,400

133,400

133,900

134,200

134,200

133,800

133,400

133,100

132,500

132,300

131,600

130,800

130,000

129,100

128 ,000

127,000

126,100

125,200

124,300

123,400

122,200

121,300

120,300

119,400

118,500

117,500

116,600

116,400

Sept.

115,700

114,700

113,900

113,100

112,000

111,000

110,600

110,000

109,300

108,700

107,900

107,000

106,200

105,900

105,200

105,100

105,000

104,600

103,700

102,700

101,800

100,800

99,900

99,000

98,100

97,000

95,900

95,100

94,300

93,400

-

Monthly elevation and contents, water year October 1949 to September I960

Date

Dec. 31.. ..............

Calendar year 1949...

Feb. 28............. ...

Mar. 31................

July 31...........:....

Water year 1949-50. . .

Elevation 

(feet)t

3,777.8

-

3,905.6

-

Contents 

(acre-feet)

16,900

-

93,400

-

Change In -contents 

during month 

(acre-feet)

29 5OO

-8,000

-1-1,000

-23,000

+19,400

t Elevation at 5 p.m.
280 MOKELUMNE RIVER BASIN

North Pork Mokelumne River below Salt Springs Dam, Calif.

Location. Water-stage recorder, lat. 38°29", long. 120°13', in SW£ see. 33, T. 8 N., R. 

ib £., 0.3 mile downstream from Salt Springs Dam and 1.7 miles upstream from Cold 

Creek. Altitude of gage, about 3,600 feet (from topographic map).

Drainage area. 160 square miles.

Records available. September 1926 to September 1950.

Average discharge. 23 years (1927-50), 436 second-feet (combined flow of North Pork 

MOKeiumne Kiver and Tiger Creek powerhouse conduit).

Extremes. Maximum discharge during year, 4,200 second-feet June 1 (gage height, 10.35 

reetj; minimum, 1.9 second-feet Dec. 7.

1926-50: Maximum discharge, 8,740 second-feet Mar. 25, 1928 (gage height,. 15.62 

feet, present datum), from rating curve extended above 4,000 second-feet: minimum, 0.2 

second-foot Mar. 31, 1931.

Remarks. Records good. Plow regulated since 1931 by Salt Springs Reservoir (see preceding 

page). Diversion above station through Tiger Creek powerhouse conduit (see p. 285).

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, In second-feet)

(Shifting-control method used Oct. 1-31,

Apr. 7-30, Aug. 1 to Sept. 30)

1.5 2.7 2.4 50 4.0 329 7.0 1,740 

1.6 5.0 2.6 69 4.5 485 8.0 2>400 

1.7 8.0 2.9 108 5.0 675 9.0 3,110 

1.9 16 3.2 155 5.5 915 10.2 4,070 

2.1 27 3.5 211 6.0 1,170

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.0 

8.0 

8.0 

8.0 

8.0

.7 

.4

.4

.7 

.7

7.7 

7.7 

7.7 

7.7 

8.0

8.0 

8.0 

8.0 

8.0 

8.0

8.0 

8.0 

8.0 

8.0 

8.0

8.0 

8.0 

8.0 

8.0 

8.0 

8.0

Nov.

5.6 

5.6 

5.0 

5.0 

4.8

4.8 

5.0 

5.0 

5.6 

5.6

4.8 

4.5 

5.3 

5.3 

5.3

5.0 

5.0 

5.0 

5.0 

4.8

5.3 

5.3 

4.8 

4.5 

5.0

4 8 

5.0 

5.6 

5.3 

5.3

Dec.

5.3 

5.3 

5.6 

5.0 

5.3

5.6 

4.3 

5.6 

5.3 

5.0

5.6 

6.2 

6.2 

5.3 

5.3

5.3 

5.3 

5.6 

5.9 

6.5

5.6 

5.6 

5.6 

4.8 

5.6

5.6 

5.9 

5.9 

5.9 

5.6 

4.8

Jan.

5.3 

5.6 

5.6 

4.8 

4.8

4.8 

4.8 

5.0 

5.0 

5.3

5.0 

5.3 

5.3 

5.3 

4.8

6.8 

11 

11 

9.2 

9.6

9.2 

9.6

13 

7.4 

9.2

7.7 

7.4 

7.1 

6.8 

6.8 

6.8

Feb.

6.5 

6.2 

5.9 

14 

13

16 

7.4 

78 

195 

195

145 

151 

286 

350 

350

284 

222 

56 

99 

224

175 

203 

186 

123 

68

22 

6.5 

5.0

Month

Octo 

Move 

Deee

Ca

Janui 

Febn 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

wa

her .....................................

lendar year 1949

ter year 1949-50 .......................

Mar.

5.0 

5.0 

4.8 

5.0 

6.5

6.8 

6.5 

6.5 

6.2 

6.2

6.2 

6.2 

6.5 

6.5 

6.5

6.2 

6.5 

6.2 

7.4 

5.9

6.8

7.1 

6.8 

7.1 

6.8

5.9 

5.9 

6.2 

5.9 

5.6 

5.0

Apr.

5.0 

6.2 

78 

5.3 

5.0

7.4 

12 

12 

11 

10

10 

9.6 

8.8 

7.4 

6.5

7.1 

6.5 

6.2- 

6.2 

6.5

6.8 

7.1 

7.4 

6.5 

6.8

7.4 

7.1 

7.4 

7.4 

8.4

Secondfoot -days

244.7 

152.9 

170.4

34,461.8

215.3 

3,492.5 

191.7 

299.0 

34,210 

37,007 

' 1,354 

510 

332.6

78,180.1

May

301 

520 

457 

400 

376

391 

364 

342 

339 

339

342 

352 

367 

387 

349

313 

615 

619 

631 

635

671 

680 

1,230 

1,870 

2,650

3,110 

3,050 

3,090 

2,960 

2,1520 

3,540

Maximum

8.0 

5.6 

6.5

1,440

13 350 ' 

7.4 

78 

3,540 

3,980 

429 

18 

13

3,980

June

3,980 

3,580 

2,750 

2,520 

2,420

2,360 

1,220 

591 

201 

159

537 

592 

698 

702 

1,310

1,210 

1,310 

1,070 

1,540 

1,700

1,510 

1,630 

1,030 

461 

279

378 

300 

255 

412 

302

July

226 

429 

56 

67 

30

29 

28 

26 

26 

24

24 

24 

23 

22 

21

20 

20 

20 

20 

19

19 

19 

18 

18 

18

18 

18 

18 

18 

,18 

18

Aug.

17 

17 

17 

18 

18

18 

18 

18 

18 

18

18 

18 

18 

18 

17

17 

16 

16 

16 

16

16 

16 

16 

15

15

15 

14 

14 

14 

14 

14

Sept.

13 

' 13 

13 

12 

12

12 

12 

12 

12

12

12 

12 

11 

11 

11

11 

11 

11 . 

11 

11

10 

10 

10 

10 

10

10 

9.6 

9.2 

9.2 

9.6

Minimum Mean acre-feet

7.4 7.89 485' 

4.5 5.10 303 

4.3 5.50 338

3.4 94.4 68,360

4.8 6.95 427 

5.0 125 6,930 

4.8 6.18 380 

5.0 9.97 593 

SOI 1,104 67,050 

159 1,234 73,400 

18 43.7 2,690 

14 16.5 1,010 

9.2 11.1 660

4.3 214 155,100
MOKELUMNE RIVSR BASIN 

Mokelumne River near Mokelumne Hill, Calif.

281

Location. Water-stage recorder, lat. 38°18'40", long. 120°43'10", in sec. 1, T 5 N , R 

TT~ET, at highway bridge 1.2 miles northwest of Mokelumne Hill and 8 miles downstream 

from confluence of North and South Porks, Altitude of gage, about 650 feet (from 

topographic map).

Drainage area.--538 square miles.

Records available. November 1927 to September 1950.

Average discharge.--22 years (1928-50), 876 second-feet.

Extremes.--Maximum discharge during year, 7,120 seoond-feet June 1 (gage height, 8.90 

reetT; minimum, 20 second-feet Jan. 4.

1927-50: 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 except those for periods of doubtful gage-height record, which 

are good. Plow regulated by Salt Springs Reaervoir beginning in 1931 (see p. 279), 

several smaller reservoirs, and four power plants. Diversions above station for irrigation and domestic use.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

1.5 45 2.6 326 5.0 1,900 

1.6 59 2.9 452 5.6 2,520 

1.7 76 3.2 600 6.4 3,450 

1.9 115 3.5 760 7.2 4,500 

2.1 163 4.0 1,080 S.2 6,000 

2.3 221 4.5 1,460

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

30

21 

22 

23 

34 

25

26 

37 

26 

29 

50 

31

Oct.

470 

116 

520 

536 

502

516 

566 

376 

372 

473

565 

634 

544 

560 

504

499 

576 

536 

534 

474

503 

465 

572 

466 

502

547 

499 

521 

498 

344 

503

Nov.

469 

462 

516 

475 

431

536 

503 

449 

567 

632

610 

550 

360 

527 

416

478 

450 

452 

494 

346

500 

409 

76 

51 

130

51 

70 

177 

209 

293

Dec.

154 

267 

54 

52 

202

310 

261 

62 

110

as

126 

149 

146 

214 

235

380 

553: 

140 

317 

362

214 

289 

232 

90 

66

134' 

360 

416 

435 

393 

52

Jan.

65 

104 

236 

142 

142

134 

125 

185 

234 

155

166 

337 

436 

436 

226

43O 

1,410 

1,340 

938 

641

760 

1,150 

1,160 

1,490 

940

726 

774 

1,110 

674 

662 

775

Feb.

539 

571 

640 

1,830 

2,300

2,450 

1,520 

1,100 

904 

669

660 

743 

733 

809 

894

846 

944 

894 

431 

747

824 

716 

602 

836 8So 

see

667 

636

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

eeo

882

755 

676 

697

902 

945 

969 

965 

915

906 

643 

634 

603 

763

868' 

977 

764 

1,050 

1,280

1,200 

.1,030 

1,330 

1,660 

1,740

1,300 

1,040 

1,030 

1,210 

1,160 

1,160

Apr.

1, 

1, 

1, 

1, 

1,

1, 

1, 

2, 

2, 

1,

1, 

1, 

1, 

1,

1,

1, 

1, 

1, 

1, 

2,

2, 

2, 

2,

1, 

1,

2,

2,

1, 

1, 

1,

Secondfoot-days

15,544 

11,935 

6,640

252,536

16,519 

27,395 

31,765 

50,770 

85,570 

72,260 

16,225 

15,476 

15,083

367,104

240 

240 

160 

350 

230

290 

600 

290 

010 

660

520 

540 

610 

510 

360

390 

420 

710 

900 

140

aoo

460 

170 

930 

720

080 

060 

960 

640 

440

May

1,700 

2,160 

1,620 

1,700 

1,560

1,630 

1,700 

1,420 

1,490 

1,440

1,650 

1,910 

2,020 

3,360 

3,610

2,700 

2,650 

2,460 

2,430 

2,720

2,630 

2,700 

2,970 

3,750 

4,230

d4,600 

d4,9OO 

d4,700 

d4,650 

d4,700 

d5,400

Maximum

634 

633 

553

3,190

1,490 

3,450 

1,740 

2,460 

5,400 

5,970 

1,060 

690 

T54

5,970

June

5,970 

5,540 

4,560 

3,600 

3,560

3,530 

d2,600 

1,790 

1,360 

1,370

1,660 

dl,650 

1,680 

1,960 

d2,500

d2,500 

d2,600 

d2,300 

d3,8OO 

d3,000

d2 , 600 

d2,200 

d2,150 

1,790 

1,120'

1,300 

1,020 

1,200 

1,030 

1,360

July

1,060 

1,060 

830 

808 

553

529 

574 

524 

226 

497

506 

644 

620 

614 

556

504 

484 

451 

636 

560

546 

372 

186 

400 

430

267 

356 

362 

336 

366 

365

Aug.

416 

430 

576 

592 

536

136 

462 

592 

613 

496

567 

690 

331 

533 

493

544 

446 

520 

594 

555

522 

550 

515 

506 

620

512 

538 

420 

583 

415 

365

Minimum Mean

118 495 

51 398 

53 221

51 692

65 597 

431 975 

624 1,025 

1,160 1,693 

1,420 3,760 

1,030 2,409 

186 523 

138 499 

58 503

51 1,006

Sept.

463 

601 

370 

464 

567

511 

552 

560 

734 

450

464 

575 

553 

510 

394

56 

92 

426 

526 

610

555

566 

546 

540 

656

503 

586 

552 

604 

492

Runoff in 

acre-feet

30,430

2S, 670 

13,570

500,900

36,730 

54,140 

63,040 

100,700 

169,700 

143,500 

32,180 

80,700 

29,920

728,100

d Doubtful gage-height record; discharge computed on basis of unpublished record of fl«r 'Into 

Pardee Reservoir and at Tiger Creek powerhouse afterbay.
282 MOKELUMNE RIVER BASIN

Mokelumne River at Lancha Plana, Calif.

Location. Water-stage recorder, lat. 38°13'25", long. 120°53'20", in SW& sec. 4, T. 4 N., 

it. 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.

Records available. June 1926 to September 1950.

Average discharge. 21 years (1929-50), since start of East Bay aqueduct diversion, 805 

secona-reer.

Extremes. Maximum discharge during year, 4,990 second-feet June 1 (gage height, 8.32 

reeTT; minimum, 43 second-feet Jan. 21, 22.

1926-50: Maximum discharge, 27,300 second-feet Mar. 25, 1928 (gage height, 19.65 

feet), from rating curve extended above 16,000 second-feet on basis of velocity-area 

studies; minimum, 5.5 second-feet Nov. 21, 1929.

Remarks. Records excellent. Plow regulated by Pardee Reservoir beginning Mar. 9, 1929 

( total capacity, 210-.000 acre-feet), Salt Springs Reservoir beginning March 1931 (see 

p. 279), several smaller reservoirs, and four power'plants. Of several diversions 

above station, East Bay Municipal Utility District aqueduct is largest not returned to 

river.

Rating table, water year 1949-50 (gage height, in feet,, 

and discharge, in second-feet)

1.1 45 1.6 114 2.3 275 4.0 1,100 

1.2 56 1.7 133 2.5 338 5.0 1,830 

1.3 69 1.8 154 2.7 412 6.0 2,660 

1.4 83 1.9 176 3.0 542 7.8 4,420 

1.5 98 2.1 223 3.4 742

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

416 

310 

449 

481 

466

483 

472 

281 

278 

492

492 

485 

530 

522 

528

281 

476 

522 

514 

542

524 

262 

222 

474 

492

474 

470 

457 

453 

278 

479

Nov.

615 

620 

492 

496 

496

278 

472 

479 

464 

487

510 

483 

284 

492 

505

505 

503 

505 

505 

246

496 

335 

537 

396 

542

550 

296 

505 

487 

522

Dec.

524 

533 

501 

290 

453

496 

492 

501 

522 

524

281 

474 

514 

514 

519

479 

412 

163 

479 

472

487 

505 

561 

449 

556

524 

441 

447 

416 

338 

505

Jan.

107 

50 

166 

92 

159

124 

146 

55 

202 

79

76 

194 

234 

243 

242

251 

235 

226 

218 

208

142 

124 

207 

211 

169

187 

186 

129 

96 

161 

215

Feb.

655 

690 

69O 

780 

580

619 

580 

581 

686 

700

700 

700 

700 

700 

690

685 

599 

604 

443 

562

589 

690 

625 

646 

652

695 

606 

582

Month

Octo 

Move

Deoe

Ca

Janu 

Febr 

Hare 

Apr!

Mflw

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1949

ter year 1949-50 .......................

Mar.

674 

695 

695 

695 

369

700 

700 

700 

700 

700

700 

700 

695 

700 

700

700 

700 

700 

700 

700

700 

700 

700 

726 

571

560 

565 

566 

578 

590 

571

Apr.

554 

541 

524 

964 

990

990 

983 

1,000 

1,000 

1,110

1,760 

1,770 

1,770 

1,760 

1,740

1,740 

1,760 

1,740 

1,750 

1,750

1,750 

1,760 

1,780 

1/960 

2,170

2,170 

2,170 

2,180 

2,190 

2,190

Secondfoot-days

13,605 

14,103 

14,372

205,341

5,134 

18,029 

20,450 

46,516 

70,650 

59,220 

16,965 

13,135 

13,239

305,418

May

1,950 

1,500 

1,500 

1,500 

1,5OO

1,720 

1,970 

1,93O 

1,890 

1,640

1,500 

1,500 

1,510 

1,510 

1,700

2,300 

2,490 

2,490 

2,490 

2,490

2,470 

2,500 

2,500 

2,790 

2,930

3,170 

3,440 

3,460 

3,430 

3,450 

3,430

Maximum

542 

620 

561

2,370

251 

780 

726 

2,190 

3,460 

4,360 

670 

665 

634

4,360

June

4,020 

4,360 

4,350 

3,770 

3,400

3,410 

3,110 

2,290 

1,680 

1,220

1,000 

990 

928 

660 

869

1,460 

1,870 

1,930 

1,930 

2,390

2,870 

2,58O 

1,860 

1,510 

1,320

843 

650 

650 

650 

650

July

471 

510 

631 

644 

571

645 

655 

635 

167 

494

660 

650 

655 

655 

600

243 

585 

572 

575 

571

655 

443 

178 

472 

660

660 

660 

660 

480 

238 

670

Aug.

469 

379 

450 

665 

294

169 

517 

524 

534 

530

516 

481 

306 

486 

475

424 

394 

346 

319 

220

466 

488 

466 

440 

443

376 

265 

408 

432 

429 

424

Minimum Mean

222 439 

246 470 

163 464

42 563

50 166 

443 644 

369 660 

524 l,.55i 

1,500 2,279 

650 1,974 

167 547 

169 424 

202 441

50 837

Sept.

476 

466 

202 

405 

496

526 

634 

402 

458 

202

467 

514 

520 

546 

594

319 

220 

458 

458 

513

469 

470 

391 

269 

439

472 

491 

478 

488 

396

Runoff in 

ao re-feet

26,990 

27,970 

28,510

407,300

10,180 

35,760 

40,560 

92,260 

140,100 

117,500 

33,650 

26,050 

26,260

605,800
MOKELUMNE RIVER BASIN 283

Mokelumne River near Clements, Calif.

Location. Water-stage recorder, lat. 38°12 l 25n , long. 121 "05"20", In NW£ sec. 15, T. 4 

n., K. 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.

Records available. October 1904 to September 1950.

Average discharge. 24 years (1904-28), 1,110 second-feet; 21 years (1929-50), 811 secondreet.(storage and diversion by East Bay Municipal Utility District began March 1929.)

Extremes. Maximum discharge during year, 4,500 second-feet June 1 (gage height, 11.57 

reet); minimum, 58 second-feet Jan. 3, 5.

1904-50: Maximum discharge, 25,600 second-feet Mar. 25, 1928 (gage height, 22.45 

feet, site and datum then In use), from rating curve extended above 4,600 second-feet 

and verified by comparison with records for Mokelumne River at Lancha Plana: no flow 

July 9, Aug. 15, 20-23, 1924.

Remarks. Records good. Concerning regulation and diversions, see "Remarks" for Mokelumne 

Kiver near Lancha Plana.

Revision (water years). W 751: Drainage area.

Rating tables, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to June 2 June 3 to Sept. 50

2.O 55 5.2 269 6.0 1,400 2.6 159 5.8 482 

2.2 78 5.6 587 8.0 2.40O 2.8 200 4.4 692 

2.5 120 4.O 527 1O.O 5,490 5.2 30O 4.8 85O 

2.8 175 5.0 940 11.6 4,520 Note. -Sane as preceding 

ta"EIe~above 4.8 feet.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

15 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

30 

51

Oct.

598 

555 

418 

459 

48O

455 

470 

579 

244 

426

488 

488 

552 

520 

516

576 

388 

524 

640 

548

550 

588 

253 

308 

537

484 

496 

444 

416 

317 

590

Nov.

472 

503 

4S5 

452 

48S

546 

406 

483 

510 

472

517 

498 

546 

455 

502

510 

508 

504 

506 

556

582 

550 

522 

430 

490

545 

554 

485 

456 

529

Dec.

506 

535 

501 

540 

445

437 

494 

4S6 

512 

522

388 

580 

504 

508 

526

483 

464 

270 

325 

460

474 

509 

555 

492 

518

558 

464 

442 

447 

346 

468

Jan.

508 

71 

60 

158 

94

150 

^25 

154 

105 

159

95 

103 

226 

272 

2S2

325 

435 

263 

227 

256

163 

147 

172 

226 

211

176 

187 

458 

154 

157 

205

Feb.

528 

695 

704 

1,220 

784

1,050 

660 

619 

712 

762

/- 755 

752 

724 

720 

716

712 

618 

628 

501 

560

611 

708 

655 

671 

671

699 

622 

845

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Hare 

Apr!

H«TT

June 

July 

Augu 

Sept

Via

lendar year 1949

Mar.

671 

716 

712 

712 

557

555 

708 

716 

716 

716

716 

716 

716 

712 

716

712 

720 

712 

720 

720

716 

716 

716 

785 

621

547 

575 

580 

594 

608 

582

Apr.

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

2,

2, 

2, 

2, 

2 

2

Secondfoot -days

15,661 

15,820 

14,557

207,185

6,026 

19,676 

20,957 

46,277 

69,290 

59,021 

16,856 

15,196 

15,104

306,201

565 

552 

526 

904 

010

020 

010 

030 

040 

020

660 

780 

780 

770 

760

750 

760 

750 

750 

760

760 

780 

780 

880 

150

150 

140 

160 

140 

160

May

2,080 

1,500 

1,490 

1,500 

1,500

1,640 

1,940 

1,900 

1,880 

1,740

1,500 

1,500 

1,520 

1,520 

1,620

2,120 

2,420 

2,420 

2,420 

2,420

2,410 

2,420 

2,420 

2,600 

2,860

2,970 

5,590 

3,420 

5,590 

5,400 

5,580

Maximum

64O 

545 

555

-

458 

1,220 

785 

2,160 

5,420 

4,480 

659 

845 

656

4,480

June

5,760 

4,480 

4,460 

4,060 

5,550

5,550 

5,170 

2,500 

1,750 

1,520

1,030 

1,000 

980 

677 

754

1,500 

1,700 

1,860 

1,860 

2,100

2,720 

2,560 

1,980 

1,450 

1,540

951 

658 

647 

647 

647

July

505 

495 

617 

659 

596

632 

640 

640 

523 

405

636 

636 

636 

636 

593

556 

500 

558 

558 

556

636 

445 

530 

513 

656

640 

6,43 

640 

610 

192 

580

Minimum

244 

554 

270

49

60 

501 

557 

526 

, 1,490 

647 

192 

192 

192

60

Aug.

488 

448 

551 

643 

' 580

249 

572 

519 

521 

520

509 

489 

555 

471 

485

470 

589 

403 

540 

192

404 

481 

471 

451 

429

428 

287 

568 

450 

437 

438

Mean

441 

461 

462

568

194 

705 

676 

1,545 

2,255 

1,967 

543 

426 

437

839

Sept.

417 

484 

294 

512 

468

497 

656 

458 

4O1 

515

372 

446 

504 

535 

58.5

465 

192 

383 

477 

456

508 

466 

582 

345 

561

478 

462 

487 

461 

445

Runoff in 

acre-feet

 27,100 

27,410 

28,440

411,000

11,950 

39,030 

41,570 

91,790 

157, 40O 

117,100 

53,590 

26,170 

25,990

607,300
284 MOKELUMNE RIVER BASH

Ave

Mokelumne River at Woodbrldge, Calif.

Location. Water-stage recorder, lat. 38 0 09'30", long. 121°18'10 11 , in NE£ sec. 34, T. 4 H., 

RTb~E., at Woodbriege, 0.4 mile downstream from dam and canal intake of Woodbrldge 

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 1950 (for 1924 and 1925, low-water records only).

discharge. 21 years (1929-50), since start of diversion through East Bay Municipal 

ity District aqueduct, 640 second-feet.

Extremes. Maximum discharge during year, 3,780 second-feet June 3 (gage height,' 19 28 

reetj; minimum, 20 second-feet Aug. 22.

1924-50: Maximum discharge', about 24,000 second-feet (estimated) Mar 26, 1928 

tgage height, 26.58 feet, datum then in use, about 30.6 feet, present datum): minimum 

discharge, 0.9 second-foot Sept. 3, 1924.

Remarks. Records good. Concerning regulation and diversions see "Remarks" for Mokelumne 

River near Lancha Plana; between Woodbrldge and Lancha Plana are many additional diversions for irrigation, Including Woodbrldge Canal (see p. 290).

Cooperation . Seven discharge measurements furnished by Division of Water Resources Department of Public Works, State of California.

Revisions (water years). W 751: Drainage area.

Discharge, in second-feet, water year October 1949 to September 1950

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.

191 

188 

118 

180 

208

210 

210 

236 

110 

70

204 

245 

263 

309 

308

304 

157 

220 

301 

360

311 

302 

148 

77 

165

220 

217 

225 

230 

234 

128

Nov.

200 

259 

263 

257 

266

271 

139 

209 

324 

355

332 

365 

36O 

233 

318

345 

358 

365 

367 

371

795 

510 

350 

491 

403

497 

493 

313 

459 

452

Dec.

493 

489 

497 

471 

305

419 

453 

47O 

475 

493

511 

301 

430 

475 

479

479 

468 

405 

226 

399

432 

464 

480 

516 

4 SO

504 

471 

430 

421 

416 

329

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu

Sept

Ha

Jan.

462 

202 

95 

124 

123

120 

129 

138 

110 

145

125 

90 

143 

228 

255

243 

352 

350 

252 

228

219 

160 

140 

209 

209

180 

186 

334 

252 

140 

162

*eb.

226 

568 

622 

745 

1,080

890 

751 

602 

615 

678

718 

685 

673 

668 

666

661 

620 

580 

593 

437

538 

587 

622 

611 

615

633 

620 

591

lendar year 194E

ter year 1949-50 .......................

Mar.

562 

639 

650 

653 

655

444 

626 

642 

281 

320

513 

516 

497 

457 

446

430 

434 

450 

468 

450

425 

425 

419 

488 

506

4O7 

369 

376 

380 

383 

387

Apr.

369 

360 

273 

349 

554

593 

642 

706 

742 

853

1,010 

1,470 

1,490 

1,510 

1,520

1,520 

1,460 

1,370 

1,340 

1,330

1.34O 

1.34O 1,350- 

1,370 

1,610

1,680 

1,740 

1,750 

1,750 

1,770

Secondfoot-days

6,649 

10,720 

13,651

125,169

6,105 

17,895 

14,698 

35,161 

53,870 

47,445 

3,078 

853 

3,240

213,365

May

1,780 

1,420 

1,110 

1,080 

1,080

1,140 

1,440 

1,560 

1,520 

1,510

1,160 

1,O8O 

1,070 

1,110 

1,090

1,330 

1,700 

1,810 

1,850 

1,920

1,870 

1,910 

1.92O 

1,910 

2,100

2,300 

2,500 

2,900 

2,900 

2,900 

2,900

Maximum

360 

795 

516

2,020

462 

1,080 

655 

1,770 

2,900 

3,640 

206 

53 

250

3,640

June

2,890 

3,300 

3,640 

3,450 

3,430

3,030 

2,970 

2,750 

1,960 

1,230

815 

628 

598 

499 

348

648 

959 

1,270 

1,390 

1,430

1,660 

2,020 

2,050 

1,450 

1,150

6O9 

365 

244 

236 

226

July

182 

115 

131 

206 

188

128 

130 

142 

126 

45

40 

71 

91 

137 

146

111 

43 

42 

53 

59

61 

100 

44 

33 

32

53 

102 

116 

198 

124 

29

Minimum

70 

139 

226

22

90 

226 

281 

2-73 

1,070 

226 

29 

21 

22

21

Aug.

32 

34 

31 

29 

53

30 

25 

25 

28 

30

35 

41 

40 

28 

28

28 

26 

25 

24 

22

21 

21 

22 

22 

22

22 

22 

21 

21 

22 

23

Mean

214 

357 

440

343

197 

639 

474 

1,172 

1,738 

1,582 

99.3 

27.5 

108

585

Sept.

23 

23 

25 

22 

22

23 

31 

221 

45 

34

27 

28 

225 

188 

216

250 

125 

50 

86 

163

191 

186 

164 

99 

38

111 

152 

148 

150 

174

Runoff in 

acre-feet

13,190 

21,260 

27,080

248,300

12,110' 

35,490 

29,150 

69,740 

106,800 

94,110 

6,110 

1,690 

6,430

423,200
MOKELDMNE RIVER BASIN 285

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 1950. 

Average discharge.--19 years, 256 second-feet.

Extremes. Maximum daily discharge during year, 572 second-feet June 16; no flow at times. 

 1381-50: Maximum daily discharge, 577 second-feet June 22, 1945; no flow at times 

in each year.

Remarks. Records excellent. Conduit conveys water of North Pork Mokelumne River from 

CaTTrace of Salt Springs powerhouse to forebay of Tiger Creek powerhouse, picking up 

water en route from Bear River and several small creeks.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co.,' obtained 

in connection with a Federal Power Commission.

Discharge, in second-feet, water year October 1949 to September 195O

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.

420 

279 

532 

528 

529

529 

514 

435 

322 

468

526 

52S 

530 

536 

536

534 

535 

534 

532 

532

532 

530 

484 

461 

526

523 

514 

510 

475 

307 

474

Nov.

505 

498 

490 

4S3 

475

469 

463 

457 

451 

445

440 

438 

438 

435 

427

423 

420 

414 

409 

405

365 

248 

190 

1.1 

131

.9 

-9

150 

151 

213

Dec.

40 

168 

.9 

.4 

74

210 

223 

74 

2.2 

.4

20 

76 

181 

132 

203

220 

217 

56 

227 

219

299 

203 

181 

76 

24

24 

313 

340 

309 

271 

24

Jan.

25 

40 

94

132 

85

56 

25 

35 

85 

145

126 

284 

336 

310 

203

330 

249 

219 

205 

252

309 

168 

65 

163 

301

361 

372 

343 

339 

391 

398

Feb.

4OO 

402 

402 

24O 

19

0 

0 

2.1 

4.8 

4.5

3.4 

.9 

4.5 

4.0 

3.3

3.0 

2.8 

1.0 

1.4 

2.8

2.8 

12 

81 

129 

183

199 

203 

200

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Marc 

Apri

How

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949 

&ry

ter year 1949-50 .......................

Mar.

201 

248 

268 

304 

238

266 

300 

299 

315 

333

332 

335 

343 

343 

349

365 

322 

305 

154 

70

175 

139 

144 

160 

182

126 

197 

268 

268 

262 

203

Apr.

154 

91 

18 

20 

.2

3.4 

0 

11 

9.2 

72

70 

72 

23 

66 

.1

.5 

.5 

.5 

.4 

.4

.4 

.4 ' 

2.5; 

3.8 

4.0

4.0 ' 

3.8 

3.8 

4.0 

3*6

Secondfoot -days

15,215 

10,435.9 

4,407.9

100,061.7

6,446 

2,511.3 

7,814 

642.7 

3,698.0 

13,166.0 

11,080 

14,396 

13,463

103,255.8

May

3.0 

83 

144 

206 

228

212 

243 

264 

266 

266

264 

254 

245 

239 

287

347 

24 

25 

25 

24

4.8 

4.8 

4.8 

4.8 

4.5

4.5 

4.2 

4.2 

4.2 

4.2 

4.0

Maximum

536 

505 

340

536

398 

402 

365 

154 

347 

572 

515 

526 

535

572

June

4.0 

3.5 

3.5 

3.5 

3.5

26 

476 

478 

513 

562

566 

566 

567 

567 

569

572 

570 

567 

567 

558

553 

551 

550 

551 

551

551 

553 

553 

496 

515

July

Mlnlnun

279 

.9 

.4

0

25 

0 

70 

0 

3.0 

3.5 

148 

67 

70

0

515 

277 

499 

436 

402

374 

364 

224 

449 

328

433 

451 

448 

454 

459

459 

367 

429 

468 

468

382 

148 

148 

314 

276

276 

278 

276 

280 

288 

290

Aug.

384 

435 

510 

510 

473

67 

442 

515 

515 

515

515 

499 

301 

480 

520

517 

521 

526 

526 

526

526 

536 

526 

481 

481

481 

481 

436 

409 

385 

367

Mean

491 

348 

142

274

208 

89.7 

252 

21.4 

119 

439 

357 

464 

449

283

Sept.

452 

476 

430 

476 

525

525 

493 

439 

427 

433

436 

437 

409 

402 

237

78 

70 

470 

530 

530

530 

530 

529 

529 

530

533 

533 

465 

474 

535

Runoff In 

acre-feet

30,180 

20,700 

8,740

198,500

12,790 

4,980 

15,500 

1,270 

7,330 

26,110 

21,940 

28,550 

26,700

204,800
286 MOKELUMNE RIVER BASIN

Cold Creek near Mokelumne Peak, Calif.

Location. Water-stage recorder, lat. 38 0 31', long. 120°13', in sec. 28, T. 8 N., R. 16

&., a.4 miles upstream from mouth and 6 miles southwest of Mokelumne Peak. Altitude of

gage, about 6,000 feet (from topographic map). 

Drainage area. 23 square miles.

Keeoras available. July 1927 to November 1942. October 1943 to September 1950. 

Average aisenarge. 22 years (1927-42, 1943-50), 58.5 second-feet. 

Jixtremes. Maximum discharge during year, 940 second-feet May 31 (gage height, 5.00 feet);

minimum, 0.1 second-foot on many days.

1927-50: 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

A\/d studies; no flow Aug. 17 to Oct. 7, 1931, Sept. 26 to Oct. 12, 1948, Sept. 18-27,

1949. 

Remarks. Records good except those for periods of ice effect or doubtful or no gage-height

record, which are poor. No storage or diversion above station. 

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project.

Rating table, water year 1949-50, except periods of Ice effect or doubtful gage-height record 

(gage height, In feet, and discharge, In second-feet)

0.3 0.1 1.4 20 2.9 181 

.4 .3 1.6 29 3.2 242 

.6 1.2 1.8 41 3.6 344 

.8 3.0 2.0 56 4.0 476 

1.0 6.2 2.3 88 4.3 600 

1.2 12 2.6 130

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

.18 

19 

20

21 

22 

23 

24 

25

28 

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 

.4 

1.7

1.3 

.6 

a.5 

a.4 

a.4

a.3 

a.3 

a.3

.3

.3

1.5 

4.1 

3.3 

4.7 

6.8

8.6 

3.7 

5.6 

5.1 

4.1

Dec.

3.8 

2.9 

2.6 

2.1 

1.3

1.3 

.9 

.8 

.9 

.7

.8 

.4

.5 

.5 

a.5

- a.4

> B2.5

Jan.

. b3

> b2.5

b2.5 

blO 

b60 

bSO 

b50

b40 

b!50 

130 

63 

50

*b34 

b30 

b25 

b25 

D23 

b20

Feb.

b20 

b!7 

28 

37 

69

83 

58 

41 

34 

28

27 

25 

21 

22 

26

35 

28 

28 

38 

39

35 

37 

42 

47 

56

67 

82 

65

Month

Octo 

Hove 

Dece

Ca

janu 

Pebr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

 ber. ...................................

lendar year 1949 

ary

St. ... ^.. ................................

Mar.

60 

49 

51 

74 

91

57 

47 

44 

37 

32

31 

b30 

29 

26 

26

28 

37 

34 

121. 

106

57 

63 

50 

41 

39

34 

31 

a35 

a40 

a60 

a80

Apr.

alOO 

a!20 

a!30 

alSO 

alSO

alio 

a90 

a70 

a60 

a60

a60 

870 

a80 

870 

870

alOO 

also 

8200 

a250 

8300

8350 

8350 

aSOO 

8300 

8300

a350 

a350- 

293 

264 

278

Secondfoot-days

3.1 

55.1 

39.0

17,169.0

835.0 

1,133 

1,540 

5,525 

10,805 

6,383 

368.9 

9.5 

4.1

26,680.7

May

235 

151 

114 

98 

101

105 

87 

83 

102 

140

179 

-260 

320 

449 

484

 485 

458 

432 

431 

478

526 

514 

536 

519 

476

472 

521 

443 

509 

530 

567

Maximum

0.1 

8.6 

3.8

622

150 

83 

121 

350 

567 

511 

52 

.6 

.3

567

June

511 

492 

381 

320 

406

251 

156 

139 

193 

235

208 

156 

170 

188 

227

222

220 

231 

254 

261

223 

181 

148 

112 

96

87 

80 

77 

74 

64

July

52 

44 

39 

31 

26

22 

dl8

dl5 

dl4

d!3

d!3 

dll 

d!2

d9 

d7

d6 

d5.5 

d4.5 

d4 

d3.5

d3.2 

d2.7 

d2.3 

d2.3 

d2.3

dl.8 

dl.5 

41.2 

.8 

.7 

.6

Aug.

0.6 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4

.4

.4 

.4 

.4 

.3

.3

.3 

.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

.3 

.3 

.2 

.2 

.2

.1 

.1 

.2 

.2 

.2

.2

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Minimum *a« ££«£

0.1 0.10 6.1 

.1 1.84 109 

.4 1.26 77

0 47.0 34,050

2.5 26.9 1,660 

17 40.5 2,250 

26 49.7 3,050 

60 184 10,360 

83 349 21,430 

64 212 12,620 

.6 11.9 732 

.1 . .31 19 

.1 .14 8.1

.1 73.1 52,920

Peak discharge (base, 500 sec. -ft.}. Ma? 31 (7 p. mi) 940 Bee. -ft.

* Winter 'discharge measurement made on this day. 

a No gage-height record} discharge interpolated or computed on basis of weather records and unpublished records for Cold Creek feeder canal, 

b Stage-discharge relation affected by ice. 

d Doubtful gage-height record] discharge computed on basis of Cold Creek feeder canal.
MOKELUMNE RIVER BASIN 287

Bear River at Pardoe Camp, Calif.

Location. Water-stage recorder, lat. 38 0 32', long. 120°15', in sec. 18, T. 8 N., R. 16 E.,

aTTardoe Camp, 2 miles downstream from Bear River Reservoir of Pacific Oas & Electric

Co. Altitude of gage, about 5,650 feet (from topographic map). 

Drainage area. 33.0 square miles, 

itecoras available. July 1927 to September 1950. 

Average discharge. 23 years, 100 second-feet. 

Jgtremes. naxfimm discharge during year, 1,410 second-feet May 31 (gage height, 5.83 feet);

minimum, 2.2 second-feet Sept. 30.

1927-50: Maximum discharge, 5,850 second-feet Dec. 11, 1937 (gage height, 12.0 feet,

from floodmarks), from rating curve extended above 1,500 second-feet; no flow Sept. 8-30,

Oct. 1-4, 7-29, 1928. 

Remarks. Records good except those for periods of ice effect or no gage-height record,

which are fair. About 6,000 acre-feet is stored each year at reservoir above station

and usually released during late summer and early winter. No diversion above station. 

Cooperation. Water-stage recorder graph, furnished by Pacific Oas & Electric Co., obtained 

"in connection with a Federal Power Commission project. 

Revisions. W 861: Drainage area.

Rating table, water year 1949-50, except periods of loe effect

(gage height. In feet, and discharge, In second-feet)

(Shifting-control method used Oct. 1 to Hov. 9}

0.6 1.6 1.0 9.1 1.9 63 3.4 344 

.7 2.6 1.2 17 2.2 100 3.8 460 

.S 4.1 1.4 26 2.6 163 4.5 698 

.9 6.2 1.6 38 3.0 244 4.9 875

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

8 

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.

6.5 

6.2 

6.2 

6.0 

7.1

7.1 

7.6 

6.5 

6.5 

6.5

6.5 

6.2 

6.2 

6.2 

a4.4

. a4.4

4.1

4.0 

4.0 

4.0 

4.0 

4.0 

4.0

Nov.

4.0 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

4.5 

7.1 

8.8

6.8 

6.5 

6.0 

6.5 

5.8

5.8 

5.8 

5.6 

5.2 

4.9

4.9 

4.9 

4.9 

5.2

5.2

5.2 

4.9 

17 

40 

39

Dec.

39

39 

39 

39 

38

37 

37 

36 

36 

35

35 

34 

34 

34

33

33 

33 

34 

33 

32

31 

30 

30 

29 

29

28 

28 

27 

26 

26 

25

Jan.

24 

25 

25 

24 

24

24 

24

a20 

a2i 

a20

ais 

a!5 

al3 

11 

9.8

8.5 

b80 

b!20 

b80 

b45

b70 

b!50 

b!60 

blOO 

91

80 

68 

b60 

b55 

a50 

a50

Feb.

a50 

a50 

a50 

alOo 

a!20

also 

a90 

a70 

a50 

a50

a55

a55 

a55 

58 

63 

70

75 

78 

75

Month

Goto 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl

Hnv

June 

July 

Augu

Sept

Ha

 iber. ...................................

lendar year 1949

ter year 1949-50 .......................

Mar.

74 

73 

75 

83 

94

87 

83 

82 

77 

74

75 

b73 

71 

70 

68

70 

78 

78 

177 

127

99

125 

107 

blOO 

b94

87 

83 

65 

46 

51 

60

Apr.

73 

86 

99 

114 

122

136 

136 

136 

117 

116

117 

124 

130 

125 

132

149

287 

366 

466 

561

631 

617 

528 

525 

554

606 

624 

516 

430 

472

Secondfoot-days

163.4 

237.3 

1,019

32,349.3

1,565.3 

1,839 

2,606 

9,099 

17,654 

8,924 

1,265 

649 

851.7

45,872.7

Hay

448 

258 

188 

161 

184

151 

140 

154 

222 

334

463 

522 

679 

a750 

aSOO

aeoo 

a750 

a650 

a65o 

a750

aSOO 

aeso 

aeso 

aeoo 

a750

aeoo 

aSOO 

a700 

a700 

a750 

aeoo

HayTfPVt

7.6 

40 

39

1,060

160

177 

631 

850 

750 

80 

29 

111

850

June

a750 

a700 

a650 

aeoo 

a600

a400 

a230 

a!70 

a230 

a280

a350 

a250 

a250 

a250 

a280

a280 

a280 

a280 

a300 

a3lO

a270 

240 

198 

149 

119

110 

103 

100 

101 

94

July

80 

67 

58 

50 

46

45 

44 

44 

43 

42

41 

41 

40 

39 

39

37 

37 

37 

37 

36

36 

35 

34 

33 

34

34 

33 

52 

32 

50 

29

Aug.

29 

27 

27 

27 

26

26 

25 

25 

24 

24

23 

23 

22 

22 

21

21 

20 

20 

19 

19

18 

18 

18 

17 

17

16 

16 

15 

15 

15 

14

Sept.

14 

13 

13 

13 

13

12 

37 

97 

111 

101

104 

100 

96 

81 

5v2

3.6 

3.4 

3.4 

3.2 

2.9

2.8 

2.6 

2.6 

2.5 

2.5

2.5 

2.4 

2.4 

2.4 

2.3

«._*__._ «» » Runoff In KlnlBUB Mean ^re-feet

4.0 5.27 324 

3.8 7.91 471 

25 .32.9 2,020

3.8 88.6 64,170

8.5 50.5 3.100 

65.7 5,650 

46 84.1 5,170 

73 303 16,050 

140 569 35,020 

94 297 17,700 

29 40.8 2,510 

14 20.9 1,290 

2.3 28.4 1,690

2.3 126 91,000

a lib gage height record; discharge computed on basis of weather records -and unpublished records for 

Bear River at Tiger Creek Canal Junction, 

b Stage-discharge relation affected by Ice.
288 MOKELUMNE RIVE* BASIN 

Middle Pork Mokelumne River at West Point, Calif.

Location. Water-stage recorder, lat. 38°23'15", long. 120°31'40", In sec. 10, T. 6 B., R. 

I3TT7, 200 feet downstream from highway bridge, 1 mile south of West Point, and 3.5 

miles upstream from South Pork. Altitude of gage, about 2,500 feet (from topographic 

map).

Drainage area. 67.2 square miles.

Records available. October 1926 to September 1950. October 1911 to October 1926 at site 

aoout 1,200 reet upstream.

Average discharge. 38 years (1912-50), 54.2 second-feet.

Extremes. Maximum discharge during year, 688 second-feet Feb. 4 (gage height, 4.32 feet); 

minimum, 0.1 second-foot Sept. 3.

1911-50: Maximum discharge observed, 2,550 second-feet Jan. 23, 1914 (gage height, 

10.0 feet, site and datum then In use), from rating curve extended above 490 secondfeet; practically no flow Aug. 23 to Sept. 14, 1931, and no flow during part of day 

Sept. 9, 10, 1934.

Remarks. Records good except those for June 22 to Sept. 30, which are fair. Beginning In 

January 1940, flow slightly regulated by Calaveras Reservoir (capacity, 1,740 acre-feet), 

6 miles above station. Several small diversions above station.

Rating tables, water year 1949-5O, except period of ice effect

(gage height, In feet, and discharge, In second-feet) 

(Backwater corrections applied Oct. 1-4, June 22 to Sept. 30)

Oct. 1-4 Oct. 5 to Sept. 30

0.8 2.9 0.5 0.2 1.1 14 1.9 84 

.9 5.0 .6 .7 1.2 19 2.2 134 

.7 1.3 1.3 25 2.7 232 

.8 2.5 1.5 40 3.5 425 

.9 5.0 1.6 49 3.8 515 

1.0 8.8 1.8 72

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6

7 

8 

9 

10

11 

12- 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

4.2

3.4 

3.2 

3.2 

3.2

3.4 

4.4 

4.4 

4.7 

4.4

5.0 

5.0 

4.4 

4.4

4.2

3.9 

3.2 

3.9 

4.2 

4.4

5.0 

4.7 

5.0 

5.0 

4.7

4.7 

4.4 

4.7 

4.4 

4.4 

4.7

Nov.

4.7 

4.4 

4.2 

4.2 

4.2

4.2 

4.4

6.4 

25 

35

17 

11 

8.8 

8.4 

8.4

8.0 

7.6 

7.2 

7.2 

7.2

7.2 

7.2 

7.2 

6.8 

7.2

6.8 

6.8 

6.8 

6.8 

6.8

Dec.

10 

7.2 

6.4 

6.4 

6.4

 .4 

6.4 

7.2 

6.8 

6.8

5.6 

6.4 

6.8 

6.8 

7.6

8.4

11 

18 

18 

10

9.2 

9.2 

8.8 

8.8 

8.4

8.4 

8.4 

8.4 

8.4 

8.4 

8.4

Jan.

8.4 

8.0 

*6.4 

b7 

7.2

8.4 

S.8 

10 

9.6 

9.2

9.2 

10 

10 

10 

14

24 

186 

120 

62 

62

93 

120 

176 

167 

90

56 

51 

138 

82 

58 

49

Feb.

39 

*36 

36 

372 

360

509 

268 

177 

136 

120

120 

102 

90 

84 

82

79 

78 

77 

77 

78

77 

76 

74 

74 

76

79 

82 

76

Month

Octo 

Rove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

ber. ....................................

 iber. ................................... liber. ...............-....---.-- '. ........

lendar year 1949 

anr

St.... ^.. ...............................

ter year 1949-50 .......................

Mar.

74 

73 

73 

74 

84

87 

77 

74 

71 

68

73 

65 

62 

60 

58

56 

71 

77 

141 

173

134 

152 

152 

270 

230

188 

169 

162 

148 

141 

141

Apr.

141 

139 

147 

150 

152

180 

316 

418 

314 

276

254 

243 

271 

234 

212

2O4 

206 

208 

212 

219

223' 

219 

202 

188 

179

175 

167 

162 

150 

141

Secondfoot-days

132.8 

257.1 

263.4

12,697.9

1,670.2 

3,534 

3,478 

6,302 

3,297 

1,378 

498.8 

138.9 

210.5

21,160.7

«ay

154 

165 

152 

150 

129

121 

114 

109 

104 

101

96 

99 

102 

104 

108

111 

111 

108 

102 

99

99 

99 

98 

96 

93

88 

84 

82 

77 

72 

70

Maximum

5.0 

35 

18

281

186 

509 

270 

418 

165 

66 

31 

11 

16

509

June

66 

62 

59 

54 

56

56 

56 

52 

50 

48

49 

52 

57 

44 

43

42 

43 

43 

40 

40

42 

44

41 

37 

36

35 

34 

34

32 

31

July

31 

28 

28 

26 

26

26 

24 

23 

21 

18

16 

17 

15 

14 

14

10 

12 

12 

10 

12

10 

10 

11 

12 

6.8

10 

12 

8.0 

13 

12 

11

Aug.

11 

10 

9.2 

7.6 

10

11 

8.4 

7.6 

6.0 

5.3

2.0 

2.1 

2.7 

4.2 

2.7

3.2 

2.9 

2.0 

1.0 

1.4

3.6 

3.4 

3.4 

2.1 

1.3

.6 

1.0 

3.9 

3.6 

3.6 

2.1

MlnlBUB Mean

3.2 4.28 

4.2 8.57 

5.6 8.50

3.2 34.8

6.4 53.9 

36' 126 

56 112 

139 210 

70 106 

31 45.9 

6.8 16.1 

.6 4.48 

.8 7.02

.6 58.0

Sept.

1.0 1.4- 

.8 

1.1 

1.4

2.0 

4.2 

5.3 

4.7 

3.6

3.4 

2.5 

2.7 

5.0 

6.4

9.2 

11 

14 

16 

14

13 

12 

11 

11 

11

10 

9.6 

6.8 

7.2 

9.2

Runoff In 

acre-feet

263 

510 

522

25,180'

3,310 

7,010 

6,900 

12,500 

6,540 

2,730 

989 

276 

418

41,970

Peak discharge (base. 200 sec. -ft.,). Jan 17 (time and discharge unknown); Feb. 4 (6 p.m.) 6S8

see.-ft.j Kar. 24 (6:30 p.m.; 425 see.-ft.j Apr. 7 (6130 p.m.) 452 see.-ft. 

6 Winter discharge measurement made en this day. 

b Stage-discharge relation affected by Ice.
MOKELOMNE RIVER BASIN 289

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 £., 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 1950.

Average discharge. 17 years, 78.2 second-feet.

Extremes. Maximum discharge during year, 1,080 second-feet Feb. 4 (gage height, 7.03 

reet); minimum, 4.6 second-feet about Sept. 26.

1933-50: 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 except those for periods of ice effect, no gage-height record, and 

BacEwater, which are fair. Small diversions above station.

Rating table, water year 1949-5O, except periods of Ice effect

(gage height, In feet, and discharge, In second-feet) 

(Backwater corrections applied Oct. 1-3; July 12 to Sept. 30) 

(Shifting-control method used Jan. 23 to Feb. 5, July 1-11)

3.5 6.0 4.2 48 5.6 276 

3.6 8.7 4.4 67 5.3 335 

3.7 12 4.6 90 6.0 410 

3.8 17 4.8 116 6.3 56O 

3.9 23 5.1 160 6.6 765 

4.0 31 5.3 300

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28

29 

30

31

Oct.

10 

9.3 

8.7 

8.7 

3.7

8.4 

8.7 

9.0 

9.3 

10

11 

11 

10 

9.0 

9.3

9.3 

9.7 

9.7 

10 

10

11 

12 

12 

12 

12

12 

11 

11 

11 

10 

10

Mov.

10 

10 

10 

10 

9.3

'9.3 

9.7 

12 

38 

78

37 

23 

19 

17 

16

15 

14 

14 

14 

13

13 

13 

13 

13 

13

13 

13 

13 

12 

12

Dec.

12 

*12 

12 

12 

12

12 

12 

13 

14 

13

13 

13 

13 

12 

b!3

14 

18 

32 

37 

20

17 

16 

15 

15 

14

14 

14 

13 

13 

13 

13

Jan.

13

(») 

blO

 bl5

b25

b50 

b400 

196 

124 

110

122

140 

209 

182 

98

69 

69 

220 

106 

71 

62

Feb.

50 

 46 

46 

575 

499

723 

346 

210 

158 

140

136 

116 

106 

98 

98

100 

98 

95 

98 

98

96 

94 

93 

93 

96

102 

107 

104

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

ber. ....................................

mber . ..... ........ ..... .... . .

 her. ...................................

lendar year 1949 

ary

St......................................

enber ...... ....... ....... .... ..

ter year 1949-5O .......................

Peak discharge (base, 5OO sec. -ft.}. Feb.

sec. -ft*; Apr. 8 (4 p.m.) 667 see. -ft.

Mar.

102 

98 

96 

98 

108

106 

98 

93 

88 

83

93 

78 

75 

72 

69

68 

84 

35 

157 

165

139 

174 

165 

374 

296

226 

187 

167 

157 

15S 

167

Apr.

Secondfoot-days

313.8 

506.3 

466

17,788.1

2,431 

4,621 

4,126 

7,560 

3,427 

1,246 

740 

344.8 

263.4

26,045.3

4 (6 p.m.)

171 

180 

185 

137 

139

217 

325 

549 

414 

338

305 

288 

305 

271 

252

246 

254 

262 

268 

273

273 

262 

239 

222 

210

200 

191 

176 

158 

150

Hay

169 

171 

158 

144 

142

138 

132 

123 

119 

117

120 

120 

119 

117 

122

117 

115 

110 

104 

100

98 

95 

91 

88 

83

78 

74 

70 

67 

65 

61

Maximum

12

78 

37

554

400 

723 

374 

549 

171 

59 

28 

15 

12

723

June

59 

57 

54 

52 

50

50 

52 

51 

49 

47

49 

50 

46 

45 

43

42 

41 

39 

36 

33!

32 

32 

32 

32 

32

31 

29 

28 

27 

26

July

26 

25 

25 

23 

23

23 

22 

22 

22 

23

24 

23 

26 

28 

24

24 

23 

24 

23 

23

22 

25 

23 

25 

25

22 

23 

23 

25 

25 

26

Aug.

16 

14 

14 

15 

15

15 

15 

14 

13 

13

13 

12 

11 

10 

12

10 

12 

12 

10 

8.4

9.0 

8.4 

9.0 

9.0 

9.7

8.4 

9.3 

9.0 

6.2 

6.2 

6.2

Minimum Mean

8.4 10.1 

9.3 16.9 

12 15.0

4.8 48.7

78.4 

46 165 

68 133 

150 .252 

61 111 

26 41.5 

22 23.9 

6.2 11.1 

6 8.78

6 71.4

Sept.

6.6 

6.4 

7.5 

8.1 

9.0

9.0 

10 

12 

12 

12

9.7 

9.7 

9.7 

9.7 

8.7

6.9 

8.7 

11 

11 

39

39 

38 

38 

37

a7

36 

6.2 

7.8 

8.4 

9.3

Runoff in 

acre -feet

622 

1,000 

924

35,230

4,820 

9,170 

3,180 

15,000 

6,800 

2,470 

1,470 

684 

522

51,660

1,080 see. -ft.; Mar. 24 (6:3O p.m.) 592

 Winter discharge measurement made on this day. 

a Mb gage-height record; discharge computed on basis of records for Middle Pork Mokelu 

West Point.

b Stage-diacharge relation affected by ice.
290 MOKELUMNE RIVER BASIN

Woodbridge Canal at Woodbridge, Calif.

Location. Differential water-stage recorder and gate-opening recorder, lat. 38°09'10", 

long. 121°18'00", in SE£ sec. 34, T. 4 K., 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 1950. 

Average discharge.--24 years, 126 second-feet.

Extremes. Maximum daily discharge during year, 450 second-feet July 13, 27; no flow for 

several months.

1926-50: Maximum daily discharge, 454 second-feet July 4, 1947; no flow during part 

of each year.

Remarks. Records good. Discharge computed from records of gate openings and effective 

neaa 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

203 

205 

194 

209 

220

216 

214 

212 

184 

182

199 

199 

193 

184 

173

161 

146 

184 

188 

182

179 

187 

152 

163 

217

224 

222 

219 

205 

206 

188

Nov.

203 

204 

215 

214 

204

202 

184 

189 

159 

124

124 

110

loo

92 

110

121 

119 

104 

105 

106

30 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec. Jan. Feb.

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

Mftv

June 

July 

Augu 

Sept

Wa

lendar year 1949

h. ......................................

St.......................................

ter year 1949-50 .......... .^ ...........

Mar.

0 

0 

0 

0 

0

0 

0 

0 

IS 

75

106 

109 

139 

169

185

199 

195 

187 

178 

195

209 

206 

204 

158 

127

117 

124 

124 

129 

129 

124

Apr.

129 

129 

190 

228 

252

286 

276 

225 

198 

177

173 

172 

177 

177 

175

177 

221 

286 

323 

351

339 

343 

339 

353 

359

376 

361 

347 

358 

345

Secondfoot -days

6,010 

3,019 

0

66,027

0 

0 

3,403 

7,842 

11,659 

12,023 

12,153 

10,142 

8,203

74,454

May

355 

352 

356 

365 

363

342 

323 

332 

327 

328

343 

350 

363 

356 

364

382 

394 

392 

397 

386

384 

385 

381 

397 

422

430 

405 

390 

417 

432 

446

Maximum

224 

215 

0

431

0 

0 

209 

376 

446 

441 

450 

385 

375

450

June

441 

441 

422 

402 

42O

419 

420 

432 

407 

399

362 

386 

397 

390 

404

388 

383 

363 

357 

374

399 

420 

410 

375 

347

392 

422 

421 

420 

410

July

383 

355 

361 

363 

388

423 

430 

428 

411 

325

370 

443 

450 

441 

416

385 

343 

394 

415 

422

427 

418 

372 

301 

339

420 

450 

442 

418 

333 

287

Minimum

146 

0 

0

6

0 

0 

0 

129 

323 

347 

287 

210 

201

0

Aug.

356 

36S 

353 

358 

384

328 

265 

299 

348 

378

385 

377 

363 

321 

335

350 

345 

329 

297 

268

210 

277 

332 

356 

351

343 

324 

269 

276 

294 

303

Mean

194 

101 

0

181

0 

O

261 

376 

401 

392 

327 

273

204

Sept.

323 

345 

348 

290 

287

332 

375 

343 

318 

319

261 

280 

262 

262 

272

262 

210 

201 

232

245

251 

253 

246 

242 

228

236 

241 

257 

250 

232

Runoff In 

acre -feet

11,920 

5,990 

0

131,000

0 

0 

6,750 

15,550 

23,130 

23,850 

24,110 

20,120 

16,270

147,700
MOKELUMNE RIVER BASIN 291

Dry Creek near Gait, Calif.

Location. Water-stage recorder, lat. 38°15', long. 121°13'', in NE£ sec. 32, T. 5 N., R. 

7 £., 2 miles downstream from Coyote Creek, 4 miles east of Gait.

Drainage area. 325 square miles.

Records available.--October 1944 to September 1950. December 1926 to September 1933 at 

site 4 miles downstream.

Extremes. Maximum discharge (faring year, 5,630 second-feet Feb. 5 (gage height, 13.24 

FeeTT; no flow for several months.

1926-33, 1944-50: 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 good below 3,000 second-feet, fair above. Many small diversions above 

station for irrigation. Flow In August was return water from Irrigation Just upstream.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, In second-feet)

Oct. 1 to Mar. 19 Mar. 20 to Sept. 30

5.8 

6.3 

7.1 

8.0 

9.0

84

143

213

'10.0 

10.5 

11.0 

11.5 

12.0

Z86 

330 

400 

515 

860

12.3

12.7

13.0

1,340

2,490

4,000

4.4

4.5

4.6

4.7

4.8

4.9

0.1 

.5 

1.0 

1.8 

3.1 

5.5

5.0 

6.0 

7.0 

8.0 

9.0 

10.0

9.0

56

110

170

235

305

11.0 420

11.5 530

12.0 850

12.3 -J.,340

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

26

79 

802 

944 

400 

205

153 

217 

304 

517 

253

154 

114 

841 

608 

304 

200

Feb.

158 

129 

108 

756 

3,850

3,340 

1,740 

676 

480 

441

475 

276 

206 

179 

170

158 

-145 

134 

122 

113

101 

94 

86 

76 

70

66 

70 

61

Month

OCto 

Hove 

Dece

Ce

Janu 

Pebr 

Marc 

Aprl 

Itev

June 

July 

Augu 

Sept

Wa

lendar year 1949 

apy

ter year 1949-50 .......................

Mar.

54 

49 

45 

42 

40

39- 

39 

37 

35 

33

37 

45 

38 

34 

30

28 

32 

50 

46 

180

138 

108 

137 

377 

1,060

622 

425 

296 

227 

192 

166

Apr.

148 

134 

123 

117 

98

S 91 

112 

284 

828 

601

414 

271 

222 

197 

166

148 

132 

116 

102 

89

81 

74 

68 

63 

58

54 

50 

47 

44 

42

Secondfoot -days

0 

0 

0

26,034.7

6,121 

14,280 

4,681 

4,974 

586.5 

0 

0 

.6 

0

30,643.1

May

40 

54 

66 

67 

57

48 

42 

40 

36 

32

28 

22 

15 

11 

9.4

7.6 

2.8 

1.7 

1.7 

1.6

1.0

1.1 

1.0 

.6 

0

0

.0 

0 

0 

0 

0

Maximum

0- 

0 

0

5,090

944 

3,850 

1,060 

828 

67 

0 

0 

.1 

0

3,850

June July

Minimum

0 

0 

0

0

o

61 

28 

42 

0

0 

0

" 00

0

Aug.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0

o

0

o

0

.1 .1 .1

0

0' .1

0

.1 

.1

0

Mean

0 

0 

0

71.3

197 

510 

151 

168 

18.9 

0 

0 

.02 

0

84.0

Sept.

Runoff In 

acre-feet

0 

0 

0

51,640

12,140 

28,320 

9,260 

9,870 

1,160 

0 

0 

1.2 

0

60,770

Peak discharge (base. 600 see.-ft.). Jan. 17 (11 p.m.) 1,410 sec.-ft.; Jan. 28 (5 p.m.) 1,250 sec. 

ft.j Feb. 5 (8 a.m.J 5,630 see.-ft.; Mar. 25 (12 m.) 1,210 sec.-ft.j Apr. 9 (12 m,) 916 sec.-ft.
292 MOKELUMNE RIVER BASIN

North Pork Cosumnes River at Cosumnes Mine, Calif.

Location.--Water-stage recorder, lat. 38°40', long. 120°32 1 , in SVf£ sec. 34, T. 10 N., R. 

 13 Ji., 0.3 mile downstream from Cosumnes Mine, 2.5 miles north of Grizzly Plat,

4.3 miles upstream from Steeley Pork, and 15 miles southeast of Placerville. Altitude

of gage, about 3,170 feet (from topographic map).

Drainage area. 36.9 square miles.

Records available. October 1948 to September 1950.

Extremes. Maximum discharge during year, 438 second-feet Apr. 21 (gage height, 4.56 feet); 

ilrnum, 2.4 second-feet Dec. 11.

1948-50: Maximum discharge, that of Apr. 21, 1950; minimum, 2.3 second-feet Sept. 

21, 22, 1949.

Remarks . Records good.

Rating table, water year 1949-5O (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Jan. 18 to July 14)

1.5 2.5 2.0 13 2.6 51 4.0 290 

1.6 3.8 2.2 22 2.9 87 4.3 365 

1.7 5.6 2.3 27 3.2 136 4.5 42O 

1.8 7.8 2.4 34 3.5 19O

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.4

3.3 

3.0 

3.0 

2.9

3.0 

3.5 

3.8 

3.8 

3.8

3.8 

3.8 

3.7 

3.5 

3.5

3.5 

3.5 

3.7 

3.4

3.7

3.8 

3.S 

3.8 

3.7 

3.7

3.7 

3.5 

3.4 

3.4 

3.4 

3.4

Nov.

3.4 

3.3 

3.3 

3.2 

3.2

3.2 

3.4 

6.0 

19 

36

14 

11 

9.4 

8.3 

7.6

7.1 

6.7 

6.7 

6.7 

6.7

6.7 

6.3 

6.3 

6.3 

6.5

6.7 

6.5 

6.0 

6.0 

6.0

Dec.

6.3 

6.3 

6.0 

6.0 

6.0

6.3 

6.3 

6.3 

5.8 

5.2

3.8 

5.1 

5.4 

5.4 

5.6

6.0 

6.9 

6.6 

7.8 

5.2

6.9 

6.5 

6.5 

6.5 

6.0

6.0 

5,8 

6.3 

6.5 

6.5 

6.3

Jan.

6.3 

6.0 

5.6 

6.7 

6.7

6.7 

6.9 

7.1 

7.1 

7.8

6.3 

7.8 

7.6 

7.4 

7.4

8.8 

70 

105 

79 

53

60 

173 

200 

169 

97

74 

65 

60 

53 

45 

41

Feb.

33 

34 

36 

178 

224

325 

214 

160 

133 

129

129 

106 

98 

93 

93

95 

93 

93 

98 

100

98 

98 

98 

10O 

106

114 

122 

122

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194!

h. ......................................

ter year 1949-50 .......................

Mar.

119 

117 

116 

117 

138

136 

126 

116 

108 

98

93 

84 

80 

77

73

72 

98 

98 

200 

242

208 

248 

228 

222 

190

164 

151 

146 

141 

146 

157

Apr.

169 

194 

212 

228 

246

288 

330 

292 

252 

230

222 

218 

244 

228 

226

230 

262 

284 

330 

378

405 

396 

352 

328 

318

318 310' 

292 

282 

246

Secondfoot-clays

109.2 

231.5 

190.1

14,632.4

f f,456.2 

3,322 

4,309 

8,290 

6,245 

2,232 

437.5 

173.7 

118.7

27,114.9

May

256 

230 

202 

184 

180

173 

164 

155 

151 

157

167 

180 

202 

216 

234

242 

242 

230 

222 

222

226 

226 

222 

222 

216

204 

198 

188 

180 

179 

175

Maximum

3.8 

36 

8.6

314

200 

325 

248 

405 

256 

167 

27 

7.4 

5.4

405

June

167 

157 

138 

131 

126

116 

97 

83 

84 

79

81 

74 

71 

65 

62

62 

60 

59 

57 

57

56 

53 

49 

46 

40

36 

34 

32 

31 

29

July

27 

24 

23 

21 

20

19 

18 

17 

17 

17

17 

16 

15 

14 

13

13 

12 

12 

12 11

11 

10 

10 

9.6 

9.1

8.6 

8.6 

8.6 

8.3 

8.1 

7.6

Aug.

7.4 

7.4 

7.4 

7.1 

7.4

7.4 

7.1 

6.9 

6.7 

6.7

6.7 

6.5 

6.3 

6.0 

5.8

5.6 

5.4 

5.1 

4.7 

4.3

4.3 

4.3 

4.5 

4.5 

4.5

4.5 

4.3 

4.2 

3.8 

3.5 

3.4

Sept.

3.4

3.3 

3.3 

3.3 . 

3.3

3.3 

3.5 

3.8 

4.2 

4.3

4.2 

4.0 

4.2 

4.2 

4.0

4.0 

4.3 

5.2 

5.4 

4.9

4.5 

4.2 

3.8 

3.7 

3.7

3.7 

3.5 

3.7 

3.8 

4.0

Hini-u. Hean »£%£

2.9 3.52 216 

3.2 7.72 459 

3.8 6.13 377

2.4 40.1 29,020

5.6 47.0 2,890 

33 119 6,590 

72 139 ' 8,550 

169 276 16,440 

151 201 12,390 

29 74.4 4,430 

7.6 14.1 868 

3.4 5.6O 345 

3.3 3.96 235

2.9 74.3 53,790
MOKELUMNE RISER BASIN 293

North Pork Cosumnes River near El Dorado, Calif.

Location. Water-stage recorder, lat. 38°35'20", long. 120°50'35lt , in SW£ see. 35, T. 9 N., 

K. iu E., 0.8 mile north of Nashville, 2.6 miles upstream from mouth, and 6 miles south 

of El Dorado. Altitude of gage, about 840 feet (from topographic map).

Drainage area.--202 square miles.

Records available. October 1933 to December 1941, October 1948 to September 1950. August 

jL»ii to September 1933 at site about 1? miles upstream. '

Average discharge. 32 years (1911-41, 1948-50), 195 second-feet.

Extremes. Maximum discharge during year, 2,670 second-feet Feb. 6 (gage height, 7.38 

reet); minimum, 0.4 second-foot Sept. 5.

1911-41, 1948-50: Maximum discharge, 8,350 second-feet Mar. 31, 1940 (gage-height, 

10.12 feet, site and datum then in use), from rating curve extended above 4,000 secondfeet; no flow during parts of 1924, 1926, 1931, 1933, 1934.

Remarks. Records good. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

8 

7 

8 

9 

10

11 

12 

.13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

3.9 

3.3 

2.8 

2.7 

2.7

3.0 

3.0 

3.0 

3.0 

3.1

4.1 

5.6 

5.2 

5.0 

4.5

4.7 

4.1 

4.1 

6.7 

6.2

7.3 

5.2 

5.0 

5.4 

5.6

5.6 

5.4 

4.9 

4.5 

5.2 

5.0

Nov.

5.0 

4.9 

5.0 

3.8 

4.5

5.4' 5.6 

6.4 

11 

146

89 

37 

28 

23 

21

19 

18 

17 

16 

17

16 

15 

15 

14 

15

16 

15 

17 

a!6 

al3

Dec.

15 

15 

15 

14 

14

14 

15 

15 

15 

15

14 

13 

12 

14 

16

16 

20 

30 

53 

38

23 

22 

21 

20 

19

18 

18 

17 

18 

17 

17

Jan.

16 

18 18' 

12 

16

21 

20 

26 

28 

26

36 

33 

28 

40 

32

71 

983 

747 

418 

261

238 

885 

994 

1,030 

486

319 

263 

562 

409 

275 

220

Feb.

176 

148 

142 

918 

1,480

2,040 

1,290 

775 

576 

497

511 

439 

388 

360 

340

340 

332 

323 

321 

325

321 

313 

309 

305 

309

321 

335 

342

Month

Goto 

Move 

Dace

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194S 

az*y

h. ......................................

ter year 1949-50 .......................

Mar.

328 

317 

307 

301 

332

368 

335 

313 

293 

271

293 

252 

235 

219 

211

202 

270 

325 

575 

830

896 

712 

694 

1,040 

1,010

810 

672 

604 

556 

539 

550

Apr.

1, 

1, 

1,

Secondfoot -days

139.8 

634.6 

563

48,126.2

8,531 

14,276 

14,660 

23,150 

12,637. 

4,012 

593.7 

76.0 

74.5

79,367.6

Peak discharge (base, 1,000 sec. -ft.). Jan. 17 (10 a.

556 

580 

604 

600 

624

716 

060 

540 

230 

971

842 

790 

884 

820 

760

745 

760 

765 

790 

830

860 

848 

750 

694 

649

628 

616 

592 

542 

504

May

525 

550 

504 

442 

415

406 

388 

365 

348 

338

348 

360 

392 

409 

439

460 

463 

448 

430 

424

421 

424 

418 

415 

400

395 

378 

362 

330 

325 

315

Maximum

7.3 

146 

53

1,800

1,030 

2,040 

1,040 

1,540 

550 

309 

45 

5.4 

6.2

2,040

June

309 

291 

260 

232 

217

204 

182 

158 

151 

141

139 

144 

130 

123 

116

112 

108 

104 

100 

96

93 

90 

83 

77 

71

66 

60 

55 

52 

48

July

45 

41 

37 

35 

32

30 

28 

26 

26 

24

24 

24 

23 

20 

18

17 

16 

14 

14 

13

12 

11 

9.9 

9.4 

8.5

7.3 

7.1 

6.4 

5.4 

4.3. 

. 5.4

Aug.

5.4 

5.2 

4.9 

4.5 

4.3

3.1 

2.4 

2.8 

3.8 

4.9

3.1 

3.3 

2.5 

2.5 

2.7

2.5 

2.0 

1.8 

1.7 

1.3

1.1 

1.1 

1.1 

1.1

1.1

1.1 

1.0 

1.0 

1.0 

.9 

.8

Minimum Mean

2.7 4.51 

3.8 21.2 

12 18.8

.7 132

12 275 

142 510 

202 473 

504 772 

315 408 

48 134 

4.3 19.2 

.8 2.45 

.5 2.48

.5 217

Sept.

0.7 

.7 

.6 

.6 

.5

.6 

.6 

.9

1.0 

1.2

1.1 

1.2 

1.6 

1.7 

1.2

.9

1.8 

2.5 

2.7 

3.9

5.6 

6.2 

5.4 

4.7 

4.7

4.1 

3.9 

4.5 

4.5 

4.9

Runoff In

acre-feet

277 

1,260 

1,160

95,460

16,920 

28,320 

29,080 

45,920 

25,070 

7,960 

1,180 

151 

148

157,400

m.) 1,280 sec. -ft. ; Jan. 24 (12:30 a.m.)

1,/bo Bec.-rt.j Feb. 6 (lo a.m.

1,340 sec.-ft.j Apr. 7 (12 p.m.) 1/840 sec.-ft."

a Ho gage-height record; discharge computed on basis of 1 discharge measurement and records for 

Coaumnes River at Michigan Bar.

' 207481 O - 52 - 20
894 MOKELUMNE RIVER BASIN

Cosumnes River at Michigan Bar, Calif.

Location. Water-stage recorder, lat. 38°30'00", long. 121°02'45", In SE£ sec. 36, T. 8 N., 

K. B is., 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 1950.

Average discharge. 43 years, 466 second-feet.

Extremes. Maximum discharge during year, 8,360 second-feet Feb. 4 (gage height, 7.44 

reet); minimum, 2.6 second-feet Aug. 11.

1907-50: Maximum discharge, 26,200 second-feet Mar. 31, 1940 (gage height, 11.66 

feet), from rating curve extneded 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 above 200 second-feet, fair below. Diversions above station for 

 Irrigation.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

5.7 

7.6 

8.4 

7.2

6.8 

6.8 

6.8 

6.S 

7.2

S.4 

10 

10 

11 

12

11 

9.6 

9.6 

9.6 

9.6

13 

13

14 

12 13

la

14 

14 

13 

12 

11

Nov.

12 

13 

12 

13 

13

12 

11 

12 

22 

190

254 

120 

75 

62 

54

48 

43 

42 

40 

38

39 

3S 

38 

36 

34

35 

38 

36 

38 

38

Dec.

35 

35 

36 

35 

33

33 

35 

38 

39 

40

3S 

34

31 

2S 

40

41 

47 

70 

105 

120

75 

54 

54 

52

51

47 

43 

42 

43 

42 

41

Jan.

41 

42 

47 

41 

29

39 

41 

55 

76 

70

107 

105 

86 

154 

126

282 

2,740 

1,940 

1,100 

650

534 

1,610 

2,020 

2,140 

l.OSO

674 

632 

1,650 

1,080 

674 

527

Feb.

419 

350 

330 

3,790 

4,160

5,410 

2,960 

1,840 

1,370 

1.1SO

1,190 

962 

831 

759 

724

716 

699 

674- 

665 

674

658 

642 

628 

62O 

620

642 

674 

682

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

her. ....................................

mber. .............--.-.-..--------------

lendar year 194!

Peak discharge (base, 2,000 sec. -ft.}. Ja

seo.-rt.j Jan. 28 (1Z m. J Z,17O sec. -ft. j Fe 

sec. -ft.j Mar. 24 (12 p.m.) 3,O9O sec. -ft. j

Mar.

665 

635 

612 

6O5 

635

716 

642 

6O5 

569 

527

555 

514 

462 

431 

413

401 

475 

658 

782 

1,690

1,260 

1,280 

1,350 

2,260 

2,330

1,770 

1,420 

1,230 

1,090 

1,030 

1,050

Apr.

1,070 

1,130 

1,170 

1,170 

1,190

1,330 

1,740 

3,O9O 

2,600 

2,040

1,770 

1,630 

1,730 

1,690 

1,560

1,510 

1,550 

1,580 

1,630 

1,670

a, 720 

1,720 

1,550 

1,420 

1,330

1,2SO 

1,250 

1,190 

1,080 

.995

Secondfoot-days

311.6 

1,456 

1,457

1 118,227.2

20,392 

34,889 

28,662 

46,385 

23,914 

7,573 

1,416 

329.3 

279.4

167,064.3

n. 17 (1:30 

b. 4 (8:30 p 

Apr. e (11 p

May

1,010 

1,130 

1,060 

890 

822

7S6 

759 

716 

6S2 

658

658 

682 

724 

742 

813

860 

860 

S31 

795 

777

768 

777 

768 

759 

742

724 

699 

665 

605 

583 

569

Maximum

14 

254 

120

9,010

2,740 

5,410 

2,330 

3,090 

1,130 

548 

96 

19 

18

5,410

June

548 

520 

474 

431 

395

375 

345 

312 

286 

272

265 

276 

252 

238 

222

216 

212 

200 

191 

179

171 

16S 

15S 

148 

140

131 

122 

116 

107 

103

July

96 

86 

78 

73 

67

66 

61 

56 

55 

52

52 

55 

54 

48 

45

42 

39 

38 

35 

34

33 

31 

30 

2S 

2S

25 

24 

23 

22 

21 

19

Aug.

19 

19 

18 

17 

16

16 

15 

14 

13

11

5

11 

12 12' 

13

13 

11 

10 

8 

8

7 

6 

5 

5 

5

6 

6. 

6 

6 

5 

5

Minimum Mean

4.5 10.1 

11 48.5 

28 47.0

3.2 324

29 658 

330 1,246 

401 925 

995. 1,546 

569 771 

103 252 

19 45.7 

5-1 10.6 

3-6 9.3-

3.6 458

p.m.) 3,720 sec. -ft.j Jan. 24 (2 

.m.) 8,360 sec. -ft.j Mar. 20 (4 a 

.m.) 3,490 sec. -ft.

7

8

4

6 

0

7

1 

7

0 

8 

4 

0 

7 

4

Sept.

5.7 

4.5 

4.5 

3.9 

3.9

3.6 

4.2 

6.7 

6.0 

6.4

6.8 

8.0 

8.4 

7.2 

8.S

9.2 

9.6

10 

11 

16

17 

18 

17 

14 

13

12 

12

11 

11

11

Runoff in 

acre-feet

61S 

2,890 

2,890

234,500

40,450 

69,200 

56,850 

92,000 

47,430 

15,020 

2,810 

653 

554

331,400

a.m.) 3,110. 

.m. ) 2,040
MOKELUMNE RIVER BASIN 295

Cosumnes River at McConnell, Calif.

Location. Water-stage recorder, lat. 38°22', long. 121°21', in Omochumnes Grant at bridge 

on a. S. Highway 99, 0.2 mile south of McConnell, 1 mile downstredh from Deer Creek and 

7 miles north of Qalt, Sacramento County. Altitude of gage, about 32 feet (from topographic map).

Drainage area.--730 square miles.

Records available. October 1943 to September 1950 in reports of Geological Survey. 1931- 

^u, j.s4i-4ii {gage heigh tat only during high-water periods) and 1942-50 in reports of 

Division of Water Resources, Department of Public Works, State of California.

Extremes. Maximum discharge during year, 6,410 second-feet Feb. 5 (gage height, 41.66 

reet); no flow during several months.

1943-50: Maximum discharge, 15,800 second-feet Feb. 3, 1945; maximum gage height, 

44.03 feet Mar. 4, 1949; no flow during parts of each year.

1931-40, 1941-42: Maximum stage recorded, 45.94 feet Feb. 23, 24, 1936.

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

are fair. Diversions above station for irrigation.

Cooperation. Eight discharge measurements furnished by Division of Water Resources, Departmem; or public Works, State of California.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

1.7

263 

180 

100 

67 

52

44 

40 

37 

35 

32

31 

30 

29 

28 

26

27 

27 

28 

26 

27

Dec.

27 

26 

25 

26 

26

25 

26 

26 

27 

27

29 

28 

26 

25 

26

30 

33 

40 

60 

. 98

92 

63 

47 

46 

44

43 

40 

37 

36 

36 

35

Jan.

34

34 

34 

37 

32

25 

32 

36 

47 

66

79 

98 

92 

101 

144

129 

1,780 

3,600 

1,790 

8900

8700 

al,100 

a2,500 

82,300 

al,600

a950 

696 

1,770 

2,120 

1,060 

740

Feb.

594 

476 

429 

1,380 

5,500

5,090 

5,580 

2,790 

1,790 

1,450

1,580 

1,2SO 

1,040 

926 

849

812 

796 

760 

736 

732

720 

696 

672 

66O 

640

656 

680 

704

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augv 

Sept

Ha

lendar year 194

Mar.

696 

668 

640 

616 

616

712 

700 

652 

612 

574

549 

591 

497 

473 

446

432 

434 

619 

608, 

1,540

1,410 

1,240 

1,480 

1,770 

3,240

2,220 

1,710 

1,360 

1,180 

1,040 

1,010

Apr.

1,040 

1,080 

1,140 

1,160 

1,16C

1,200 

dl,500 

d2,500 

d3,800 

d2,700

d2,100 

dl,800 

dl,800 

d2,000 di,eoo

dl.600 

dl,600 

' 1,620 

1,650 

1,720

1,780 

1,790 

1,680 

1,510 

1,390

1,320 

1,280 

1,240 

1,160 

1,070

Secondfoot-days

0 

1,132.7 

1,174

136,180.6

24,626 

40,018 

30,335 

49,190 

24,477 

7,325 

721.0 

0 

0

178,998.7

May

1,020 

1,160 

1,140 

995 

S72

528 

800 

751 

702 

670

666 

684 

697 

764 

800

854 

872 

859 

818 

792

764 

778 

782 

764 

760

738 

702 

679 

630 

570 

566

Maximum

0 

263 

98

12,700

3,600 

5,580 

3,240 

3,800 

1,1«0 

543 

83 

0 

0

5,580

June

543 

518 

477 

435 

393

362 

352 

318 

293 

281

253 

251 

258 

234 

218

200 

193 

187 

182 

173

168 

150 

145 

137 

124

111 

99

/ 9*

' 90

86

July

83 

Si 

69 

46 

40

35 

37 

36 

32 

33

32 

30 

30 

29

24

21 

22 

19 

18 

6.0

0 

0 

0 

0 

0

0 

0 

0

0 

0 

0

Minimum

0

0 

25

0

25 

429 

432' 

1,040 

566 

86 

0 

0 0'

0

Aug.

Mean

0 

37.8 

37.9

373

794 

1,429 

979 

1,640 

790 

244 

23.3 

0 

0

490

Sept.

Runoff in 

acre-feet

0 

2,250 

2,330

270,100

46,840 

79,370 

60,170 

97,570 

48,550 

14,530 

1,430 

0 

0

 355,000

Peak discharge (base, 3,600 sec. -ft.). Jan. 18 (7:30 a.B.) 4.120 sec. -ft.: Feb. 5 (6f30 D.B.)

6,410 aeo.-n.

a HQ gage-height record; discharge computed on basis of records for station at Michigan Bar. 

d Doubtful gage-height record} discharge computed on tasi» of records for «tat±«n at Michigan Bar.
296 MOKELUMNE RIVER BASIN

Camp Creek near Camino, Calif.

Location.--Water-stage recorder, lat. 38°41', long. 120°33', in NVf£ sec. 28, T. 10 N., R. 

13 £., 3 miles*upstream from Sly Park Creek and 7.5 miles southeast of Camino. Altitude 

of gage, about 3,200 feet (from topographic map).

Drainage area. 35.5 square miles.

Records available. October 1948 to September 1950.

Extremes. Maximum discharge during year, 451 second-feet Feb. 6 (gage height, 3.94 feet); 

minimum, 1.5 second-feet Dec. 11.

1948-50: Maximum discharge, that of Feb. 6, 1950; minimum, that of Dec. 11, 1949.

Remarks. Records good except those for period of ice effect, which are ,fair.

Rating tables, water year 1949-50, except period of Ice effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Feb. 5 Feb. 6 to Sept. 30

0.8 1.6 1.4 22 0.8 1.6 1.2 14 1.9 87 

.9 2.6 1.6 41 .9 2.8 1.3 2O 2.3 180 

1.0 4.8 1.9 80 1.0 £.6 1.4 27 2.7 332 

1.1 7.5 2.3 148 1.1 S.4 1.6 47 2.8 330 

1.2 11 2.6 245

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.3 

2.1 

2.0 

2.0 

1.9

2.0 

2.5 

2.6 

2.4 

2.5

2.5 

2.5 

2.4 

2.4 

2.3

2.4 

2.4 

2.5 

2.6 

2.8

3.0 

3.0 

3.3 

3.3 

3.0

3.0 

2.8 

2.8 

2.8 

2.8 

2.6

Nov.

2.6 

2.6 

2.6 

2.8 

2.6

2.8 

3.3 

6.2 

21 

36

12 

7.2 

6.4 

5.6 

5.3

4.8 

4.6 

4.6 

4.4 

4.4

4.1 

4.1 

4.1 

4.1

4.1

4.1 

4.1 

4.1 

4.1 

4.1

Dec.

4.1 

3.9 

3.9 

3.7 

3.7

3.7 

3.7 

3.7 

3.7 

3.7

2.2 

3.3 

3.5 

3.5 

3.7

4.6 

5.6 

7.5 

6.7 

*3.7

4.8 

4.4 

4.1 

4.1 

4.1

3.9 

3.9 

4.1 

4.1 

4.4 

4.1

Jan.

4.1 

4.1 

3.9 

4.6 

4.6

4.8 

5.1 

5.3 

5.9 

6.7

6.4 

6.7 

6.7 

7.2 

7.0

10 

b80 

blOO 

*60 

41

48 

166 

193 

153 

91

96 

58 

67 

53 

41 

36

Feb.

26 

26 

29 

121 

209

380 

234 

158/ 

122 

108

108 

96 

86 

83 

83

86 

84 

84 

86 

87

87 

86 

86 

86 

90

96 

102 

101

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

h. ......................................

ter year 1949-5O .......................

Mar.

99 

94 

92 

92 

103

106 

99 

92 

86 

81

80 

73 

67 

66 

63

63 

89 

87 

180 

231

195 

228 

207 

217 

183

158 

139 

131 

129 

136 

149

Apr.

Secondfoot -day s

79.5 

182.8 

128.1

12,554.9

1,376.1 

3,03O 

3,820 

7,117 

4,461 

1,511 

317.5 

119.9 

89.0

22,231.9

Peak discharge (base, 40O sec . -f t * ) . Jan . 23 (5 D.m.)

160 

174 

136 

192 

201

249 

314 

295 

242 

210

204 

204 

242 

220 

217

224 

245 

266 

295 

323

332 

318 

278 

249 

238

234 

228 

214 

189 

174

my

189 

166 

144 

131 

126

126 

117 

111 

1O4 

106

111 

117 

134 

144 

163

174 

174 

166 

158 

158

163 

166 

163 

163 

160

155 

147 

139 

129 

131 

126

^mxlmum

3.3 

36 

7.5

260

193 

380 

231 

332 

189 

122 

18 

5.6 

4.5

380

June

122 

111 

97 

89 

84

79 

69 

59 

55 

52

54 

53 

48 

45 

44

42 

39 

38 

37 

36

34 

32

30 

28 

26

24 

24 

21 

20 

19

July

18 

17 

16 

15 

14

14 

13 

12 

12 

12

12 

12 

11 

10 

9.9

9.4 

9.0 

8.6 

8.6 

8.6

8.3 

8.3 

7.9 

7.5 

7.1

6.7 

6.4 

6.0 

6.0 

5.6 

5.6

Aug.

5.6 

5.6 

5.6 

5.3 

5.3

5.0

s.a

5.0 

5.0 

4.8

4.8 

4.5 

4.5 

3.9 

3.9

3.6 

3.4 

3.4 

3.1 

3.1

2.8 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.6 

2.6 

2.6

Minimum Mean

1.9 2.56 

2.6 6.09 

2.2 4.13

1.7 34.4

3.9 44.4 

26 108 

63 123 

160 237 

104 144 

19 50.4 

5.6 10.2 

2.6 3.87 

2.4 2.97

1.9 60.9

Sept.

2.6 

2.6 

2.4 

2.4 

2.4

2.4 

2.6 

2.7 

2.8 

2.8

2.8 

2.8 

2.3 

2.8 

2.8

2.8 

3.6 

4.5 

3.9 

4.2

3.6 

3.4 

3.4 

3.1 

2.8

2.8 

2.8 

2.8 

2.8 

2.8

Runoff Iti 

acre -feet

158 

363 

254

24,900

2,730 

6,010 

7,580 

14,120. 

8,85O 

3,000 

' 630 

238 

177

44,110

421 sec. -ft.; Feb. 6 (10 a.m.) 451 sec. -ft.

* winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
MOKELTJMNE RIVER BASIN 297

Sly Park Creek near Pollock Pines, Calif.

Location. Water-stage reporder, lat. 38°42', long. 120°33', in SEi sec. 18, T. 10 N., R. 

13 E., 0.5 mile downstream from dam site, 2.5 miles upstream from mouth, 3.6 miles 

south of Pollock Pines, and 12 miles east of Placerville.

Drainage area. 14.4 square miles.

Records available. October 1948 to September 1950. March to June 1906 at site 2 miles 

upstream, puDlished as Sly Park Creek at Park.

Extremes. Maximum discharge during year, 433 second-feet Feb. 6 (gage height, 4.62 feet); 

minimum, 0.3 second-foot Sept. 6, but may have been less during period of no gageheight record in October.

1906, 1948-50: Maximum discharge, that of Feb. 6, 1950; minimum recorded, 0.1 

second-foot Sept. 22, 1949.

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

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.5 

.5 

.5 

.5 

.5

.5 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.7 

.7 

.8 

.8 

.7

.7 

.7 

.7 

.7 

.7 

.6

Nov.

0.6 

.6 

.6 

.6 

.6

.6 

.7 

1.2 

4.6 

22

4.9

3.0 

2.6 

2.1 i.a

1.8 

1.7 

1.6 

1.4 

1.4

1.4 

1.4 

1.4 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

Dec.

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.1

.9 

1.4 

1.5 

1.5 

1.6

2.0 

2.5 

4.0 

3.0 

2.5

2.6 

2.4 

2.3 

2.0 

1.8

1.8 

1.7 

1.6 

1.6 

1.6 

1.6

Jan.

1.4 

1.2 

1.2 

1.1 

1.0

1.0 

1.0 

.9 

1.1 

1.2

1.2 

1.4 

1.4 

1.1 

1.4

16 

114 

110 

49 

28

51 

197 

222 130' 

57

36 

31 

73 

44 

31 

25

Feb.

19 

16 

15 

172 

178

310 

156 

94 

69 

63

59 

49 

44 

40 

39

39 

38 

36 

36 

36

36 

33 

33 

32 

33

34 

35 

34

Month

Octo 

Hove 

Dece

Ca

Janui 

Febn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

her. ....................................

lendar year 1949 

ary

ter year 1949-50 .......................

Peak discharge (base, 300 sec. -ft.). Jan.

Mote. No gage-height record Oct. 1 to Nov 

records for Camp Creek near Camlno.

Mar.

32 

30 

29 

29 

37

35 

33 

32

29 

27

27 

24 

23 

23 

22

20 

37 

36 

96 

94

74 

90 

76 

143 

112

94 

83 

77 

71 

71 

71

Apr.

Secondfoot -days

19.2 

67.1 

53.8

4,941~.0

1,231.6 

1,778 

1,677 

2,427 

609.5 

147.9 

50.5 

24.1 

15.6

8,101.3

69 

68 

60 

56 

54

76 

168 

155 

130 

116

110 

112 

149 

132 

114

105 

98 

91 

82 

73

65 

58 

53 

47 

40

36 

32 

28 

26 

24

May

38 

40 

39 

37 

31

28 

26 

25 

23 

22

22 

21 

22 

19 

19

18 

17 

16 

15 

14

13 

13 

13 

12 

11

10 

10 

9.5 

9.0 

8.5 

8.5

Maximum

0.8 

22 

4.0

88

222 

310 

143 

168 

40 

8.0 

2.6 

1.1 

.8

310

June

8.0 

8.0 

8.0 

7.2 

7.2

7.6 

6.7 

6.0 

5.6 

5.6

6.0 

6.0 

5.6 

4.9 

4.6

4.3

4.3 

4.1 

3.8 

3.6

3.6 

3.4 

3.2 

3.2 

3.2

3.0 

3.0 

2.9 

2.7 

2.6

July

2.6 

2.4 

2.3 

2.3 

2.1

2.0 

1.9 

1.9 

1.9 

1.9

1.9 

1.8 

1.8 

1.7 

1.6

1.6 

1.6 

1.4 

1.4 

1.4

1.4 

1.2 

1.2 

1.2 

1.2

1.1 

1.0 

1.2 

1.2 

1.2 

 1.1

Aug.

1.1 

1.1 

1.1 

.9 

1.0

1.0 

1.0 

1.0 

.9 

.9

.8 

.9 

.8 

.8 

.8

.8 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.6 

.6

.6 

.6 

.6 

.5 

.4 

.4

Mini . Mean

0.5 0.62 

.6 2.24 

.9 1.74

.2 13.5

.9 39.7 

15 63.5 

20 54.1 

24 80.9 

8.5 19.7 

2.6 4.93 

1.0 1.63 

.4 .78 

.4 .52

.4 22.2

Sept.

0.4 

.4 

.4 

.4 

.4

.4

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.7 

.8 

.8 

.7

.6 

.6 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

a££fe£

38 

133 

107

9,800

2,440 

3,530 

3,330 

4,810 

1,210 

293 

100 

48 

31

16,070

23 (1 p.m.) 398 sec. -ft.] Feb. 6 (4 a.m.) 433 sec. -ft. 

. 2, Dec. 12-20, June 7; discharge computed on basis of
298 GOOSE LAKE BASIN

Drew Creek near Lakeview, Oreg.

Location . Water-stage recorder, lat. 42°07', long, 120°35', in NW£ sec. 10 or SW.£ sec. 3, 

 T. 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 1950 in

reports or ueological Survey. January 1909 to-September 1941 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, 204 second-feet Apr. 27 (gage height, 2.98

reet); minimum, 2.1 second-feet Oct. 2.

1909-50: 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 fair except those for periods of ice effect or no gage-height record,

which are poor. Considerable regulation caused by Drew Creek Reservoir, 2vmiles above

station. Since March 1914 North Drew Canal of Lakeview Water Users has diverted water

around station.

Rating table, water year 1949-50, except period of Ice effect 

(gage height, In feet, and discharge, In second-feet)

0.6 0.6 1.1 16 2-.1 91

.7 2.5 1.2 21 2.5 138

.8 5.0 1.4 33 3.0 207

.9 8.0 1.6 47

1.0 12 1.8 63

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.5

2.5

2.5

2.3

2-. 8

2.5

2.8

2.5

2.S

3.0

2.8

2.S

2.8

2.8

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

3.2

3.5

3.5

Nov.

3.5

3.5

3.8

3.8

3.8

3.8

4.0

4.2

5.0

4.5

4.5

4.5

5.0

5.0

5.0

4.8

4.5

4.5

4.5

4.5

4.8

4.8

4.8

4.8

4.8

4.8

5.0

5.0

5.0

4.8

-

Month

October. . . .

November. . .

December. . .

Calendar

year 1949

January. . . .

February. . .

March. .....

April......

Mo»

July.......

August.. ...

September. .

Water year 

1949-50..

Dec.

4.5

4.8

4.5

4.5

4.8

4.5

4.5

4.5

4.5

b4.5

b4.5

b4.0

b3.5

b3.5

b3.0

b3.0

*b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b3.0

b3.0

b3.5

b3.5

b3.5

b4.0

b4.0

b3.5

b3,0

Secondfoot-days

89.6

135.3

113.1

11,983.5

91.0

345.2

946

5,002

3,828

973

2,271

1,179

412.7

15,385.9

Jan.

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b2.5

b3.0

b3.5

b4.0

b5.0.

b4.5

b4.0

b4.o.

b3.5

b3.5

b3.0

b3.0

b2.5

b2.5

b2.5

b2.5

Feb.

b2.5

b2.5

b2.5

b3.0

b5.0

b5.0

b5.0

bS.O

bS.O

bS.5

bS.O

b7.0

8.0

9.2

14

20

19

20

20

15

13

13

15

31

32

24

20

18

_

-

Mar.

18

18

22

20

20

20

IS

19

20

20

18

18

18

20

23

23

39

17

18

19

22

36

19

19

18

18

20

62

99

105

120

Apr.

137

' 147

154

154

155

163

160

167

167

a!65

a!65

a!65

a!65

a!65

a!65

164

160

161

164

167

171

185

191

1S9

194

192

194

171

147

158

-

Drew Creek

Discharge In second-feet

Maximum

3.5

5.0

4.8

202

5.0

32

120

194

198

88

83

67

20

198

Minimum Mean

2.3 2.89

3.5 4.51

2.5 3.65

32.8

2.5 2.94

2.5 12.3

17 30.5

137 167

47 123

16 32*4

44 73.3

15 38.0

7.1 13.8

2.3 42.2

May

160

177

191

195

198

192

188

184

179

177

174

172

170

170

168

132

80

76

60

47

52

49

53

66

68

76

79

79

75

69

72

Runoff In 

acre-feet

178

268

224

23,760

180

685

1,880

9,920

7,590

1 930

4*500

2,340

819

30,510

June

"'S

80

88

88

83

58

22

18

16

17

24

20

17

17

16

18

20

20

20

20.

20

20

20

20

21

21

21

23

31

41

-

July

44

47

48

50

60

74

68

76

77

75

79

83

83

82

82

82

82

82

82

82

82

82

82

82

82

78

73

71

69

66

66

North Drew

Canal 

(diversion In 

acre-feet)

.

-

-

_

.

.

e!29

1,720

2,530

4,860

2,920

1,260

13,420

Aug.

67

65

61

52

40

35

39

46

50

54

55

45

39

38

41

41

41

a40

a40

a35

a35

a30

a30

a25

a25

a25

a20

a20

a!5

a!5

a!5

Sept.

a!5

a!5

al5

a 20

a 20

14

7.1

9.6

8.8

8.8

8.4

12

14

17

al8

a!8

a!9

a20

a20

a20

a20

a!5

alO

alO

alO

alO

alO

alO

a9

a9

Drew Creek

Reservoir 

(contents In 

acre-feet )t

34,400

34,700

35,270

36,300

40,000

54,290

62,960

60,600

57,230

45,750

38,200

36,000

-

* Winter discharge measurement made on this day.

t Contents at end of month Interpolated from oocasloilal staff-gage readings.

a No gage-height record; discharge computed on basis of recorded range In stage and records for 

North Drew Canal near Lakeview. 

b Stage-discharge relation affected by Ice. 

e Apr. 28-30 only, no record Oct. 1 to Apr. 28.

\
GOOSE LAKE BASIN 299

Cottonwood Creek near Lakeview, Oreg.

Location. Water-stage Recorder, lat. 42°14', long. '120°30', in SWi sec. 29, T. 38 S., R. 

is E., 200 yards downstream from Cottonwaod Reservoir and 10 miles northwest of 

Lakeview. x

Drainage area. 30 square miles.

Records available. November 1908 to September 1919 and October 1925 to September 1950 

in reports or Geological Survey. November 1908 to September 1919 and October 1924 to 

September 1941 in reports of State engineer.-

Average discharge. 29 years (1909-19, 1924-35, 1938-42, 1946-50), 19.3 second-feet.

Extremes. Maximum discharge during year, 127 second-feet Apr. 22, 23 (gage height, 3.56 

reet); no flow Oct. 5, 17-19.

1908-19, 1924-50: 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 below control gate; no flow at times.

Remarks. Records fair. Since 1923 considerable regulation caused by Cottonwood Reservoir, 200 yards above station.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

1.1 0.05 1.7 5.5 2.6 34 

1.2 .3 1.8 7.2 2.8 47 

1.3 .9 1.9 9.2 3.0 64 

1.4 1.8 2.0 12 3.3 94 

1.5 2.8 2.2 17 3.6 133 

1.6 4.0 2.4 24

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

' 21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.4 

1.5 

1.5 

1.5 

.4

2.3 

3.6 

2.5 

2.2 

4.8

3.2 

2.4 

1.8 

1.6 

1.5

1.5 

.4 

0 

.5 

1.9

2.3 

2.4 

2.3 

2.2 

2.0

1.7 

1.7 

1.6 

1.4 

1.3 

1.1

Nov.

1.0 

.9 

.9 

.9 

.9

.8 

.8 

.9 

1.1 

1.2

1.4 

1.4 

1.6 

1.7 

l.S

l.S 

1.8 

1.8 

l.S 

1.8

1.8 

1.9 

1.9 

2.0 

2.1

2.2 

2.3 

2.3 

2.4 

2.4

Dec.

2.4 

2.4 

2.3 

2.2 

2.2

2.2 

2.2 

2.2 

2.1 

2.2

2.2 

2.2 

1.3 

.9 

.9

.9 

.9 

.9 

.9 

1.0

1.0 

1.1 

1.0. 

1.0 

1.1

1.1 

1.0 

1.1 

1.1 

1.2 

1.3

Jan.

1.3 

1.3 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4

1.4 

1.5 

1.5 

1.5

1.5 

3.6 

9.7 

9.2 

8.8

S.6 

8.6 

5.2 

1.5. 

1.5

1.5 

1.5 

1.6 

l.S 

l.S 

1.9

&

Oct 

Nov 

Dec

C

Jan 

Peb 

Mar 

Apr 

May 

Jun 

Jul 

Aug 

Sep

W

alendar year 194 9. ......

y............. ........... 1,1

Feb.

1.9 

1.9 

1.9 

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

2.0 

3.6 

6.5

7.6 

5.7 

4.8 

5.2 

5.0

4.4 

3.6 

3.5 

7.6 

8.6

8.6 

8.0 

6.5

ond56.5 

47.6 

46.5

81.5

S9.4 

14.9 

63.6 

64.2 

58 

71 

55 

98 

71.2

ater year 1949-50. ....... 6,535.9

Mar.

4.8 

1.4 

1.0 

1.0 

1.1

1.1 

1.2 

1.2 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

22 

33 

33 

37

Apr.

44 

45 

46 

46 

46

47 

48 

48 

49 

44

32 

26 

13 

13 

11

S.2 

8.0 

14 

33 

36

76 

116 

126 

123 

96

56 

24 

17 

26 

47

May

99 

96 

95 

90 

74

41 

30 

IS 

18 

19

23 

24 

26 

34 

71

82 

78 

68 

69 

58

37 

39 

52 

56 

74

74 

75 

74 

70 

53 

41

June

47 

57 

74 

74 

73

43 

18 

IS 

20 

32

32 

26 

18 

24 

24

24 

21 

12 

12 

12

12 

12 

22 

22 

23

22

20 

23 

24 

30

Cottonwood Creek

Discharge in second-feet .JJUJ}°

Maximum

4.8 

2.4 

2.4

100

9.7 

8.6 

37 

126 

99 

74 

5$ 

23 

22

126

Minimum Mean

July

34 

39 

39 

3S 

53

55 

44 

44 

44 

43

45 

47 

46 

46 

46

45 

44 

36 

29 

30

37 

36 

3S 

35 

35

29 

22 

20 

20 

19 

19

f f in 

-feet

0 1.82 112 

.8 1.59 94 

.9 1.50 92

0 15.6 11,270

1.3 2.88 177 

1.9 4.10 228 

1.0 5.28 324 

8.0 45.5 2,710 

18 56.7 3,490 

12 29.0 1,730 

19 37.3 2,290 

16 19.3 1,1-90 

1.6 9.04 538

0 17.9 12,980

Aug.

19 

19 

21 

22 

20

16 

16 

16 

17 

22

23 

23 

22 

22 

22

21 

21 

20 

20 

20

19

 19 

20 

21 

IS

16 

16 

16 

16 

17 

18

Sept.

21 82 

22 

22 

21

20

IS 

IS 

17 

16

16 

14 

9i2 

2.9 

2.1

2.1 

2.1 

2.2 

2.6 

2.7

2.2 

1.9 

1.8 

l.S 

1.7

1.7 

1.7 

1.6 

2,2 

1.7

Cottonwood 

Creek Reservoir 

(contents in 

acre-feet )t

0

0 

0

-

a420 

aSOO 

3,020 

4,280 

83,920 

a3,6SO 

al,020 

a300 

0

t Contents at end of month.

a Reservoir gage not read at end of month; contents interpolated.
300 SACRAMENTO RIVER MAIN STEM

Sacramento River at Delta, Calif.

Location. Water-stage recorder, lat. 40 0 56<20", long. 122°24'55", in NW£ sec. 35, T. 36 

H"., K. 5 W., 0.2 mile downstream from Dog Creek and 0.6 mile southeast of Delta. Datum 

of gage is 1,075.00 feet above mean sea level (levels by Bureau of Reclamation).

Drainage area. 427 square miles.

Records available. December 1944 to September 1950.

Extremes. Maximum discharge during year, 5,620 second-feet Feb. 6 (gage height, 9.14 feet); 

minimum, 141 second-feet Sept. 3, 4, 5.

1944-50: Maximum discharge, 24,200 second-feet Jan. 7, 1948 (gage height, 15.16 

feet), from rating curve extended above 14,300 second-feet on basis of logarithmic 

plotting; minimum, that of Sept. 3, 4, 5, 1950.

Remarks. Records excellent. Small diversions above station for irrigation.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

3.7 146 4.S 525 6.5 1,800 

3.8 165 5.2 745 7.0 2,350 

4.0 215 5.6 1,020 7.5 2,970 

4.4 350 6.0 1,330 8.1 3,810

Discharge, In second- feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

28 

27 

28 

29 

30 

31

Oct.

176 

174 

172 

172 

176

174 

181 

181 

183 

191

191 

188 

183 

183 

186

183 

1S6 

186 

191 

191

191 

188 

191 

193 

193

193 

193 

193 

193 

191 

188

Hov.

iee

188 

188 

188 

188

186 

191 

215 

526 

382

312 

276 

256 

245 

236

233 

227 

224 

218 

215

210 

210 

210 

212 

215

212 

215 

230 

227 

212

Dec.

210 

210 

204 

204 

221

212 

218 

215 

212 

212

207 

202 

204 

207 

218

239 

332 

318 

308 

252

233 

227 

224 

227 

218

215 

212 

210 

207 

212 

207

Jan.

204 

204 

193 

199 

199

199 

204 

236 

230 

287

266 

239 

242 

236 

252

242 

488 

1,850 

1,650 

1,480

2,890 

2,530 

3,290 

1,990 

1,210

887 

758 

641 

555 

520 

462

Feb.

439 

418 

430 

520 

1,730

3,780 

1,890 

1,340 

1,090 

1,040

978 

915 

887 

908 

1,110

1,720 

2,010 

1,730 

1,650 

1,520

1,360 

1,270 

1,270 

1,340 

1,620

1,810 

1,620 

1,750

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

jajyo 

Sept

Ha

lendar year 194! 

ary

>..................... .

ter year 1949-50 .......................

Mar.

1,680 

1,610 

1,580 

1,640 

2,150

1,860 

1,520 

1,320 

1,210 

1,090

-992 

901 

852, 

797, 

764

752 

1,080 

1,140 

1,730 

1,570

1,480 

2,180 

1,960 

1,970 

1,730

1,560 

1,460 

1,380 

1,280 

1,270 

1,380

Apr.

1 

1 

1 

1 

1

2 

2 

3 

2 

2

2 

2 

2

1 

1

1,

1 

1 

2 

2

2 

2 

2

1 

1

1 

1 

1, 

1, 

1,

Secondfoot -days

5,755 

7,035 

6,997

315,014

24,833 

38,345 

43,908 

59,390 

36,608 

13,916 

6,554 

5,033 

5,106

253,480

530 

670 

650 

510 

510

230 

550 

250 

650 

250

100 

020 

030 

850 

710

740 

860 

980 

040 

280

520 

370 

090 

830 

760

770

870 

740 

560 

470

May

1,560 

1,380 

1,230 

1,100 

1,030

985 

929 

915 

936 

1,030

1,220 

1,410 

1,570 

1,680 

1,690

1,580 

1,580 

1,350 

1,190 

1,150

1,20O 

1,250 

1,220 

1,150 

1,080

999 

950 

943 

797 

771 

733

MaxluuB

193 

526 

332

11,900

3,290 

3,780 

2,180 

3,250 

1,690 

685 

276 

181 

236

3,780

June

685 

636 

586 

545 

515

495 

505 

480 

452 

545

570 

550 

500 

466 

462

530 

555 

460 

439 

414

394

378 

362 

362 

362

346 

374 

326 

308 

294

July

276 

262 

256 

256 

252

245 

239 

233 

233 

233

227 

221 

215 

210 

202

199 

196 

199 

207 

202

193 

188 

183 

181 

176

183 

188 

179 

176 

174 

170

Aug.

170 

172 

174 

174 

179

181 

174 

170 

165 

170

170 

165 

165 

165 

163

159 

159 

157 

156 

156

154 

152 

154 

157 

156

156 

136 

152 

152 

150 

150

Minimal Mean

172 166 

186 234 

202 226

159 863

193 801 

418 1,369 

752 1,416 

1,470 1,980 

733 1,181 

294 464 

170 211 

150 162 

146 170

148 694

Sept.

146 

146 

148 

146 

146

146 

 150 

159 

170 

165

176 

165 

165 

172 

170

172 

193 

236 

202 

188

179 

176 

174 

174 

172

174 

176 

174 

174 

174

Runoff In 

acre-feet

11,410 

13,950 

13,860

624,800

49,260 

76,060 

87,090 

117,800 

72,610 

27,600 

13,000 9,980- 

10,130

502,800

Peak discharge (base, 5.700 sec. -ft.). H6 peak above base.
SACRAMENTO RIVER MAIN STEM 301

Shasta Lake near Redding, Calif. 

(Formerly published as* Shasta Reservoir near Redding)

Location. Water-stage recorder, 1st. 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 1950. Prior to October 1949, published 

as snasta Reservoir near Redding.

Extremes. Maximum contents during year, 3,982,500 acre-feet May 21 (elevation, 1,047.07

 feet); minimum, 2,287,000 acre-feet Jan. 8 (elevation, 973.27 feet).

1942-50: Maximum contents, that of May 21, 1950j minimum, 1,960 acre-feet Dec. 21, 

1942 (elevation, 616.5 feet).

Remarks. Reservoir is formed by concrete gravity-type dam completed in 1949; regulation

 oTTTischarge from reservoir began Dec. 30, 1943. Usable capacity, 4,377,000 acre-feet 

between elevations 737.75 feet (bottom of lowest set of river outlets) and 1,065.0 

feet (top of drum type spillway gates) above mean sea level. 115,700 acre-feet is not 

available for release. All water passes down Sacramento River, some first passing 

through power plant at dam. Records, Including extremes, show total contents at 12 p.m.

Cooperation. Water-stage recorder graph furnished by Bureau of Reclamation.

Contents, In thousands of acre-feet, water year October 1949 to September 1950

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.

2,579.3

3,571.7

2,566.7

2,562.2

2,557.1

2,551.6

2,546.0

2,538.9

2,532.6

2,538.4

2,523.8

2,519.8

2,514.5

3,510.3

2,504.3

2,496.9

2,492.1

2,488.4

3,484.0

2,480.2

2,475.6

2,468.9

2,461.0

2,456.2

2,451.7

2,447.6

2,443.3

2,439.5

2,436.0

2,430.5!

2,426.6'

Nov.

2,422.7

2,418.4

2,414.1

2,409.2

2,405.3

2,397.7

2,393.8

2,391.7

2,396.3

2,396.0

2,395.4

2,392.1

2,386.8

3,384.3

2,381.8

2,379.7

2,377.4

2,374.9

2,371.3

2,566.6

2,364.1

2,362,7

2,361.3

2,357.5

2,355.6

2,353.1

2,348.3

2,347.2

2,345.5

2,344.1

; -

Dec.

2,342.4

3,341.2

3,338.6

2,335.1

2,333.8

3,331.7

2,328.1

3,326.6

2,325.0

2,323.0

2,317.6

2,315.2

3,314.0

2,312.7

2,311.9

2,311.9

2,312.3

2,312.1

2,311.7

2,311.2

2,311.0

2,310.6

2,310.8

3,308.9

3,306.4

2,304.6

2,304.0

2,303.2

2,302.5

2,302.1

2,300.8

Jan.

2,297.6

2,293.8

2,292.5

3,291.4

3,290.2

2,289.5

2,288.5

3,287.0

2,288.3

2,293.2

2,294.2

2,294.2

2,299.3

2,297.9

2,296.1

2,296.6

2,311.2

2,333.4

2,549.3

2,360.8.

2,384.3

2,414.3

2,465.5

2,491.9

2,508.7

2,520.4

2,532.2

2,541.3

2,549.0

2,555.9

2,560.4

Feb.

2,564.8

2,567.1

2,573.2

2,580.1

2,602.6

2,645.3

2,670.0

2,688.9

2,705.7

3,731.8

2,735.8

2,747.7

2,75».3

2,770.8

2,783.7

2,798.0

2,815.7

3,831.6

2,846.6

2,862.6

2,876.9

2,891.0

2,903.6

2,917.1

2,932.2

2,947.6.

2,960.4

2,974.5 '

_ .

-

Mar.

2,988.3

3,001.6

3,015.0

3,024.8

3,039.6.

3,052.4

3,066.7

3,082.1

3,091.8

3,103.3

3,113.6

3,132.3

3,127.6

3,135.3

3,143.2

3,150.2

3,162.9

3,175.1

3,198.5

3,213.0.

3,231.1

3,258.3

3,286.9

3,315.9

3,343.0

5,373.5

5,397.1

3,418.5

5,436.4

3,451.3

3,466.4

Apr.

3,483.4

3,502.5

3,516.3

3',529.2

3,544.1

3,561.9

3,583.0

3,610.1

3,635.6

3,653.4,

3,669.8

3,685.6

3,700.5

3,715.6

3,732.7

3,751.6

3,765,6

3,777.8

3,792.1

3,805.6

3,819.9

3,336.1

3,853.1

3,863.3

3,873.4

5,88^.5

5,890.4.

3,398.4

5,909.2

5,921.6

-

Hay

5,952.3

5,957.6

5,941.1

5,948.2

5,950.6

5,952.8

5,960.7

5,962.5

5,965.6

5,968.6

5,970,8

5,972.4

5,974.5

5,982.0

5,979.8

5,980.5

5,980.9

5,980.5

3,978.7

3,979.5

5,982.5

5,981.7

5,979.5

5,977.9

5,»77 f l

3,975.1

3,974.9-

5,974.6

5,971.9

5,971.9

5,970.0

June

5,967.0

5,962.5

5,959.1

5,955.5

5,950.1

5,944.4

5,938.3

5,95E.5

5,925.4

5,918.7

5,914.1

3,909.0

5,904.4

5,899.0

5,892.3

5,885.6

5,876.2

5,867.0

3,860.4

5,852.6.

5,844.9

5,857.4

5,850.0

3,622.6

5,315.0.

3,8^4.0

5,795.8

5,785.4

5,775.6

5,767.2

-

July

5,757.4

5,745.0

5,735.8

5,725.6

5,714.6

5,705.6

5,692.4

5,678.1

3,664.9

3,655.7

5,643.1

5,633.0

3,625:0

5,612.2

5,598.1

1,584.9

5,574.1

5,562.4

5,551.2

5,559.6

5,527.4

5,515.6

5,498.7

3,487.2

3,475.4

5,464.0

5,452.0|

5,439,6

5,425,0

3,410.4

5,399.1

Aug.

5,587.3

3,376.0

3,365.2

5,555.0

5,558.7

5,525.6

5,512.2.

5,501.4

3,291.0

3,279.2

5,268.9

5,255.9

5,241.8

5,230.8

3,220.1

5,209.4

5,193.0

5,186.2

5,172.8

5,159.5

3,149.1

3,138.5

3,127.8

3,117.1

3,106.4

5,095.0

3,083.3

5,072.7

5,062.1

5,051.8

5,041.5

Sept.

5,051.9

5,021.4'

5,008,4

2,996.2

2,986.9

2,977.0

3,967.6

2,958.1

2,948.5

2,959.8

2,952.7

2,926.4

2,919.7

2,915.1,

2,906.7

2,898.5

2,391.2

3,886.5

2,881.1

2,877.3

2,872.9

£,666.1

2,862.1

Z, 855.1

2,849.4

2,348.0

2,842.0

2,638.1

2,654.6

2,829.2

-

Monthly elevation and contents, water year October 1949 to September 1950

Date

Sept. 50. ................

Oct. 51.................

Nov. 30. ................

Dec. 51.................

Calendar year 1949....

Feb. 28.................

Sept. 50... ..............

Water year 1949-50. . . .

Elevation 

(feet)t

-

1

f\f\e en

1,000.05

-

Contents 

(acre- feet)

2,585,000

-

' 2,829,200

-

Change In contents 

during month ' 

(acre-feet)

+21,800

* J.AOT 900

-212,500

 1-244,200

t Elevation at 12 p.m.
302 SACRAMENTO RIVER MAIN STEM 

Sacramento River at Keswick, Calif.

Location. Water-stage recorder, lat. 40°36', long. 122°27', in wj sec. 28, T. 32 N., R. 

5~¥77 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 1950. October 1938 to April 1942 at site 

i.b miles upstream.

Average discharge. 10 years (1939-41, 1942-50), 7,062 second-feet.

Extremes. Maximum discharge during year, 12,100 second-feet Aug. 2 (gage height, 15.20 

TeeTT; minimum, 1,230 second-feet Nov. 26.

1938-50: 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, 

154 second-feet May 15, 1948 (gage height, 2.00 feet).

Remarks. Records good. Flow regulated by Shasta Lake beginning Dec. 30, 1943 (see preSecTIng page). Many diversions above station for irrigation.

Discharge, In second-feet. Mater year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

2S 

29 

30 

31

Oct.

5,900 

5,800 

5,S1O 

5,820 

5,950

5,940 

5,850 

5,860 

6,O90 

5,870

5,840 

5,800 

5,780 

5,840 

5,780

5,790 

5,780 

5,840 

5,930 

5,810

5,800 

5,84(5 

5,840 

5,790 

5,880

5,780 

5,800 

5,600 

5,550 

5,590 

5,560

Nov.

5,700 

5,550 

5,450 

5,500 

5,510

5,600 

5,500 

5,500 

5,340 

5,270

5,010 

4,900 

4,900 

4,920 

4,880

4,860 

4,930 

4,860 

4,620 

4,640

4,680 

4,530 

4,760 

4,620 

4,650

4,480 

4,530 

4,430 

4,440 

4,470

Dec.

4,420 

4,460 

4,220 

4,210 

4,190

4,700 

5,780 

4,250 

4,090 

4,120

4,110 

4,620 

4,190 

4,440 

4,200

4,150 

4,170 

4,130 

64,100 

e4,200

4,140 

3,940 

3,980 

3,950 

3,920

3,950 

3,990 

3,960 

3,970 

3,950 

3,97C

Jan.

3,970 

3,960 

4,010 

4,570 

4,250

4,120 

4,000 

4,020 

4,600 

5,410

4,030 

3,990 

4,160 

3,590 

3,540

5,260 

4,310 

4,210 

4,000 

3,590

3,840 

3,590 

3,560 

3,370 

3,210

3,2S& 

3,450 

3,280 

3,210 

3,160 

3,170

Feb.

3,150 

3,170 

3,330 

3,640 

4,150

3,910 

3,390 

3,320 

3,180 

3,210

3,180 

3,100 

3,120 

3,100 

3,100

3,150 

3,120 

3,100 

3,120 

£,640

2,580 

2,620 

2,580 

2,560 

2,580

2,580 

2,530 

2,460

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

lendar year 1949

AW

ter year 1949-50 .......................

Mar.

2,500 

2,460 

2,420 

2,480 

2,490

2,480 

2,460 

2,480 

2,420 

2,440

2,460 

2,510 

2,470 

2,400 

2,360

2,450 

2,500 

2,510 

2,500 

2,650

2,610 

2,590 

2,670 

2,940 

2,550

2,520 

2,700 

2,620 

2,730 

2,810 

2,750

Apr.

2,700 

2,670 

2,660 

2,770 

2,750

2,700 

2,660 

2,620 

2,730 

62,700

e2,700 

e2,700 

e2,650 

62,600 

2,600

2,680 

2,800 

2,720 

2,650 

2,630

2,600 

2,540 

2,650 

2,950 

3,160

3,180 

3,420 

3,570 

3,540 

3,610

Secondfoot-days

180,110 

149,030 

130,470

2,131,740

120,710 

85,670 

78,930 

84,910 

171,470 

217,720 

276,110 

266,710 

195,990

1,957,830

May

3,910 

4,100 

4,520 

4,680 

4,670

4,540 

4,550 

4,920 

5,300 

5,260

5,420 

5,760 

5,930 

5,560 

5,750

6,010 

6,210 

6,200 

6,110 

6,150

6,040 

6,040 

" 6,110 

6,250 

5,920

5,880 

5,970 

5,940 

5,900 

5,930 

5,940

Maximum

6,090 

5,700 

5,780

9,780

5,410 

4,150 

2,940 

3,610 

6,250 

8,200 

9,110 

9,110 

8,300

9,110

June

6,300 

6,440 

6,530 

6,600 

6,680

7,440 

7,060 

7,020 

6,980 

7,030

6,970 

7,030 

6,930 

7,260 

7,520'

7,330 

7,100 

6,970 

6,940 

6,960

7,160 

7,520 

7,730 

8,200 

7,960

7,970 

8,000 

8,000 

8,030 

8,060

July

8,140 

8,830 

8,810 

8,910 

8,830

8,760 

8,780 

8,660 

8,640 

8,600

8,590 

8,570 

8,800 

9,110 

9,020

9,050 

9,050 

9,050 

9,080 

9,060

9,O60 

9,050 

9,050 

9,050 

9,090

9,090 

9,060 

9,110 

9,050 

9,080 

9,080

Minimum

5,550 

4,430 

3,920

2,400

3,160 

2,460 

2,360 

2,540 

3,910 

6,300 

8,140 

8,060 

5,140

2,360

Aug.

9,080 

9,O80 

9,060 

9,06O 

9,110

9,090 

9,080 

8,950 

8,600 

8,570

8,570 

8,530 

8,560 

8,560 

8,600

8,590 

8,560 

8,570 

8,590 

8,550

8,630 

8,600 

8,610 

8,610 

8,390

8,070 

8,060 

8,080 

8,080 

8,120 

8,100

Mean

5,810 

4,968 

4,209

5,840

3,894 

3,060 

2,546 

2,830 

5,531 

7,257 

8,907 

8,604 

6,533

5,364

Sept.

8,300 

8,080 

8,110 

8,110 

8,180

8,170 

7,990 

7,430 

7,120 

7,060

7,020 

6,600 

6,630 

6,660 

6,160

6,150 

6,120 

6,140 

6,110 

5,660

5,640 

5,640 

5,640 

5,640 

5,620

5,240 

5,140 

5,230 

5,180 

5,220

Runoff In 

acre-feet

,357,200 

295,600 

258,800

4,228,000

239,400 

169,900 

156,600 

168,400 

340,100 

431,800 

547,700 

529,000 

388,700

3,883,000

e Stage-discharge relation indefinites discharge computed on basis of records foa station near Red 

Bluff.
SACRAMENTO RIVER MAIN STEM 303

Sacramento River near Red Bluff, Calif.

Location. Water-stage recorder, lat. 40°13'55", long. 122°10'50", in SE£ sec. 34, T. 28 

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 1950. April 1895 to June 1902 at site at 

Jenys Ferry, 12 miles upstream from Red BJuff.

Average discharge. 55 years, 11,020 second-feet.

Extremes. Maximum discharge during year, 51,600 second-feet Feb. 6 (gage height, 13.08 

 feet); minimum, 3,010 second-feet Nov. 26 (gage height, 0.26 foot).

1895-1950: Maximum discharge, 291,000 second-feet Feb. 28, 1940 (gage'height, 38.9 

feet), from rating curve extended above 200,000 second-feet by logarithmic plotting and 

on basis of velocity-area studies; minimum, 2,000 second-feet Mar. 29, 1944 (gage 

height, -0.45 foot).

Remarks. Records excellent. Flow regulated by Shasta Lake since Dec. 30, 1943 (see p. 301). 

Hany diversions above station for irrigation.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.0 4,270 3.0 9,150 8.0 26,500 

1.2 4,660 4.0 12,100 9.0 31,000 

1.6 5,520 5.0 15,300 10.0 35,800 

2.0 6,470 6.0 18,700 11.0 40,800 

2.5 7,780 7.0 22,400

.Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

5,450 

5,670 

5,730 

5,690 

5,750

5,530 

5,870 

5,790 

5,890 

6,120

5,920 

5,940 

5.7SO 

5,720 

5,780

5,790 

5,830 

5.S60 

5,390 

5,960

5,910 

5,900 

5,890 

5,940 

5,960

6,000 

5,910 

5,910 

5,690 

5,630 

5,660

Nov.

5,800 

5,900 

5,820 

5,650 

5,660

5,700 

5,790 

5,730 

6,020 

6,090

5,910 

5,440 

5,330 

5,340 

5,280

5,250 

5,230 

5,310 

5,220 

5,020

5,080 

5,070 

5,060 

5,030 

5,000

4,930 

5,010 

4,910 

.4,880 

4,860

Dec.

4,850 

4,910 

4,S20 

4,650 

4,610

4,610 

5,220 

6,100 

4,720 

4,590

4,5SO 

4,550 

4,830 

4,730 

4,920

4,580 

4,560 

4,940 

4,970 

4,770

4,670 

4,550 

4,380 

4,380 

4,350

4,350 

4,390 

4,390 

4,350 

4,360 

4,320

Jan.

4,360 

4,380 

4,380 

4,450 

4,850

4,500 

4,510 

4,710 

4,670 

7,210

7,740 

5,400 

5,170 

6,910 

4,780

4,660 

12,200 

26,900 

14,300 

\ 11,500

13,SOO 

15,100 

14,600 

11,600 

7,580

6,020 

5,530 

6,150 

5,540 

5,320 

5,080

Feb.

4,780 

4,570 

5,140 

28,300 

36,000

38,400 

17,300 

10,700 

8,670 

9,530

9,530 

7,410 

6,660 

6,310 

6,250

6,430 

6,950 

6,490 

6,170 

5,940

5,210 

5,040 

4,910 

4,760 

4,950

5,080 

5,040 

4,950

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Va

lendar year 1949

ter year 1949-50 .......................

Mar.

4,760 

4,700 

4,540 

4,460 

4,600

4,S30 

4,540 

4,330 

4,270 

4,360

4, ISO 

4,010 

3,940 

3,860 

3,760

3,700 

4,080 

5,700 

9,780 

10,400

7,460 

S,130 

7,350 

14,900 

13,400

8,870 

8,130 

7,110 

6,340 

6,080 

5,930

Apr.

5 

5 

5 

5 

5

6 

6 

6 

6 

5

5 

5 

5 

5 

5

4 

4 

4 

4 

4

4 

4 

4 

4 

5

4

5 

5 

5 

5

Secondfoot-days

180,660 

161,320 

145,350

2,727,230

243,900 

271,470 

192,500 

160,050 

212,260 

232,370 

275,280 

267,470 

199,260

2,544,890

800 

,730 

,610 

,410 

430

OSO 

240 

470 

340 

,930

,540 

,370 

610 

390 

020

790 

850 

830 

790 

830

870 

910 

810 

760 

040

980 

020 

260 

170 

170

May

5,370 

6,050 

6,370 

6,400 

6,340

6,150 

5,960 

6,000 

6,420 

6,470

6,440 

6,640 

6,950 

6,950 

6,880

7,240 

7,510 

7,540 

7,400 

7,350

7,290 

7,290 

7,460 

7,700 

7,350

7,270 

7,240 

7,190 

7,030 

7,030 

6,980

Maximum

6,120 

6,090 

6,100

48,000

26,900 

38,400 

14,900 

6,470 

7,700 

8,400 

9,180 

9,150 

8,370

38,400

June

7,O60 

7,320 

7,290 

7,290 

7,210

8,000 

7,700 

7,670 

7,540 

7,560

7,620 

7,750 

7,670 

7,700 

7,970

8,130 

7,700 

7,480 

7,400 

7,330

7,320 

7,730 

7,830 

3,400 

5,400

8,29C\ 

8,240 

8,240 

8,210 

8,270

July

8,210 

8,760 

8,980 

9,070 

9,040

8,950 

8,900 

8,810 

8,790 

8,650

8,620 

8,590 

8,670 

9,070 

9,150

9,120 

9,150 

9,120 

9,180 

9,150

9,180 

9,090 

9,120 

9,120 

9,090

9,150 

9,150 

9,150 

9,120 

9,040 

9,090

Aug.

9,090 

9,070 

9,090 

9,120 

9,150

9,150 

9,150 

9,180 

8,730 

8,590

8,650 

8,590 

8,540 

8,590 

8,560

8,560 

8,540 

8,590 

8,540 

8,510

3,560 

8,630 

8,630 

S, 620 

8,560

8,120 

8,040 

8,050 

8,100 

8,O80 

8,090

Minimum Mean

5,450 5,828 

4,560 5,377 

4,320 4,689

3, 40 7,472

4,360 7,868 

4,570 9,695 

3,700 6,210 

4,760 5,335 

5,370 6,847 

7,060 7,746 

8,210 8,977 

8,040 8,628 

.5,210 6,642

3,700 6,972

Sept.

8,100 

8,370 

8,050 

8,080 

3,080

3,100 

8,130 

7,730 

7,210 

7,110

7,110 

6,900 

6,640 

6,700 

6,470

6,220 

6,220 

6,270 

6,320 

6,030

5,800 

5,770 

5,750 

5,770 

5,770

5,540 

5,300 

5,2101 

5,230 

5,280

Runoff In 

acre-feet

358,300 

320,000 

288,300

5,409,000

483,800 

535,500 

331,800 

317,500 

421,000 

460,900 

552,000 

530,500 

395,200

5,048,000
304 SACRAMENTO RIVER MAIN STEM

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., R. 1 W., 0.5 mile south of Butte City. Zero of gage is set to datum of Corps of 

Engineers.

Records available. April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 1950 in reports of Geological Survey. 1939-50 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Average discharge. 10 years (1940-50), 11,530 second-feet.

Extremes. Maximum discharge during year, 59.400 second-feet Feb. 7 

 "; minimum, 4,330 second-feet Jan. 1 (gage height, 69.70 feet

gage height, 86.76 

1940-50: Maximum discharge, 170,000 second-feet Feb. 7, 1942 gage height, 96.87

feet), from rating curve extended above 100,000 second-feet.

1921-50: Minimum discharge recorded, 1,050 second-feet July 15, 25, 26, ,1931 (gage 

height, 67.49 feet).

Remarks. Records excellent. Flow regulated by reservoirs, many diversions for irrigaETon, and bypassing for flood control. See "Remarks" for Sacramento River at Keswick.

Cooperation. Records collected and prepared in cooperation with Division of Water 

Resources, Department of Public Works, State of California.

Discharge, In second-feet, water year October 1949 to Septenber 1950

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.

5,240 

5,090 

5,180 

5,220 

5,220

5,220 

5,240 

5,240 

5,220 

5,340

5,400 

5,340 

5,280 

5,220 

5,160

5,130 

5,200 

5,200 

5,200

5,220

5,320 

5,320 

5,320 

5,320 

5,320

5,340 

5,380 

5,300 

5,300 

5,130 

5,130

Nov.

5,050 

5,160 

5,220 

5,260 

5,260

5,300 

5,360 

5,460 

5,620 

6,340

6,450 

6,260 

5,600 

5,300 

5,340

5,340 

5,340 

5,230 

5,340 

5,300

5,340 

5,260 

5,260 

5,260 

5,300

5,320 

5,300 

5,260 

5,240 

5,220

Dec.

5,160 

5,220 

5,240 

5,180 

5,010

5,030 

5,110 

5,540 

5,950 

5,160

4,980 

4,990 

5,010 

5,220 

5,130

5,240 

5,110 

5,180 

5,260 

5,260

5,130 

5,070 

4,920 

4,820 

4,770

,750 

,730 

,730 

,730 

,750 

,710

Jan.

4,670 

4,640 

4,320 

4,730 

4,920

5,220 

5,010 

5,130 

5,220 

5,260

7,730 

7,590 

6,060 

6,650 

7,390

5,910 

8,520 

23,100 

26,100 

16,700

14,100 

21,800 

13,700 

19,400 

14,700

10,400 

8,510 

8,080 

8,560 

7,550 

6,960

Feb.

6,5OO 

6,060 

5,830 

15,600 

50,500

57,200 

51,400 

25,700 

16,500 

14,100

17,300 

14,200 

11,700 

10,500 

9,760

9,520 

9,830 

10,100 

9,440 

3,960

8,580 

7,320 

7,520 

7,320 

7,180

7,460 

7,570 

7,550

Month

3cto 

Hove 

Dece

Ca

Janu 

Febr 

Mure 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

 ber. ...................................

rtwr. ...........------------ -----------

lendar year 1949

ter year 1949-50 .......................

Mar.

7,50O 

7,300 

7,090 

6,850 

6,760

6,960 

7,070 

6,670 

6,370 

6,260

6,100 

5,370 

5,640 

5,480 

5,360

5,200 

5,160 

6,500 

8,170 

13,700

13,900 

11,100 

12,300 

11,700 

13,100

16,400 

12,300 

11,600 

10,300 

9,300 

8,300

Apr.

3,460 

8,320 

7,640 

7,760 

7,360

7,270 

7,980 

9,370 

9,400 

8,700

7,870 

7,300 

7,030 

7,410 

6,980

6,430 

6,060 

5,870 

5,760 

5,660

5,660 

5,760 

5,700 

5,480 

5,260

5,300 

5,240 

5,220 

5,3OO 

5,090

Seoondfoot-days

163,790 

162,340 

157,090

2,893,230

304,130 

421,700 

272,310 

202,640 

186,200 

. 187,040 

211,650 

204,230 

171,980

2,644,150

May

4,980 

5,110 

5,560 

5,660 

5,660

5,560 

5,420 

5,160 

5,090 

5,360

5,380 

5,360 

5,600 

5,950 

6,100

6,190 

6,410 

6,630 

6,630 

6,520

6,590 

6,590 

6,630 

6,740 

6,920

6,740 

6,540 

6,370 

6,320 

6,260 

6,170

Maxima

5,400 

6,450 

5,950

30,100

26,100 

57,200 

13,100 

9,400 

6,920 

6,720 

7,050 

7,000 

6,480

57,200

June

6,000 

6,020 

6,080 

6,060 

6,020

5,870 

6,410 

6,300 

6,230 

6,060

6,120 

6,260 

6,410 

6,190 

6,300

6,560 

6,720 

6,340 

6,150 

6,040

5,370 

5,850 

6,020 

6,030 

'6,590

6,630 

6,520 

6,410 

6,520 

6,410

July

6,450 

6,3>20 

6,140 

6,960 

7,030

7, COO 

6,940 

6,780 

6,740 

6,630

6,520 

6,520 

6,520 

6,520 

6,330

6,870 

6,890 

6,920 

6,960 

6,960

6,980 

6,940 

7,000 

7,050 

7,000

6,960 

6,960 

6,960 

6,960 

6,870 

6,870

NlAlBUB

5,090 

5,050 

4,710

4,580

4,640 

5,830 

5,160 

5,220 

4,980 

5,350 

6,320 

6,060 

4,860

4,640

Aug.

6,850 

6,870 

6,850 

6,920 

7,000

6,930 

7,000 

6,960 

7,000 

6,740

6,590 

6,650 

6,560 

6,540 

6,590

6,540 

6,540 

6,520 

6,480 

6,480

6,410 

6,520 

6,590 

6,560 

6,540

6,500 

6,170 

6,080 

6,060 

6,060 

6,080

Mean

5,251 

5,411 

5,067

7,927

9,812 

15,060 

8,784 

6,537 

6,006 

6,235 

6,827 

6,588 

5,733

7,244

Sept.

6,190 

6,150 

6,320 

6,080 

6,120

6,280 

6,370 

6,480 

6,190 

5,910

5,930 

5,890 

5,330 

5,660 

5,680

5,680 

5,500 

5,620 

5,830 

5,850

5,680 

5,460 

5,320 

5,260 

5,560

5,280 

5,160 

4,980 

4,860 

4,860

Runoff In 

acre-feet

322,900 

322,000 

311,600

5,739,000

603,300 

836,400 

540,100 

401,900 

369,300 

371,000 

419,800 

405,100 

341,100

5,244,000
SACRAMENTO RIVER MAIN STEM 305

Sacramento River at Colusa, Calif.

Location. Water-stage recorder, lat. 390 12'50", long. 121°59'55", at north end of Jimeno 

urant, 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 J.95U in reports of Geological Survey. 1939-50 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Average discharge.--10 years (1940-50), 9,613 second-feet.

Extremes. Maximum discharge during year, 34,200 second-feet Feb. 7 (gage height, 63.23 

 reet ); minimum, 4,760 second-feet Sept. 29, 30; minimum gage height, 39.50 feet Jan. 4.

1940-50: Maximum discharge, 49,000 second-feet Feb. 8, 1942 (gage height, 69.20 

feet).

1921-50: 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 for 

flood control. Many diversions above station for irrigation.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5,560 

5,530 

5,490 

5,470 

5,450

5,470 

5,460 

5,470 

5,430 

5,470

5,600 

5,560 

5,500 

5,420 

5,360

5,370 

5,360 

5,330 

5,310 

5,350

5,440 

5,440 

5,470 

5,520 

5,510

5,530 

5,550 

5,580 

5,560 

5,440 

5,390

Nov.

5,340 

5,400 

5,490 

5,520 

5,550

5,580 

5,630 

5,720 

5,780 

6,270

6,720 

6,690 

6,240 

5,830 

5,660

5,730 

5,710 

5,660 

5,650 

5,660

5,670 

5,670 

5,680 

5,650 

5,720

5,680 

5,760 

5,660 

5,660 

5,620

Dec.

5,570 

5,550 

5,540 

5,520 

5,380

5,350 

5,380 

5,630 

6,220 

5,630

5,320 

5,260 

5,260 

5,480 

5,400

5,500 

5,420 

5,390 

5,590 

5,620

5,580 

5,440 

 5,410 

5,240 

5,230

5,230 

5,220 

5,230 

5,230 

5,220 

5,180

Jan.

5,160 

5,1-50 

5,140 

5,110 

5,130

5,480 

5,410 

5,420 

5,550 

5,550

6,430 

8,700 

6,720 

6,440 

7,710

6,630 

6,900 

14,500 

24,300 

21,000

16,300 

17,600 

20,800 

19,300 

13,200

13,600 

10,400 

8,950 

9,150 

8,640 

7,730

Feb.

7,290 

6,910 

6,590 

8,410 

27,700

33,700 

34,000 

29,800 

21,700 

17,300

17,000 

16,700 

14,100 

11,900 

10,600

9,890 

9,490 

. 9,930 

9,800 

9,070

8,680 

8,130 

7,680 

7,440 

7,260

7,270 

7,410 

7,440

Month

Octo 

Novel 

Decs

Ca

Janui 

Pebn 

Hare 

Apr!

MAV

June 

July 

Augui 

Sept

Ha

nber. ...................................

liber. ........... ------ . - - - - -----

lendar year 1949 

ftpy

ter year 1949-50 .......................

Mar.

7,390 

7,250 

7,070 

6,890 

6,730

6,720 

6,S90 

6,800 

6,490 

6,300

6,210 

6,090 

5,870 

5,740 

5,640

5,540 

5,490 

5,810 

7,600 

9,810

13,700 

11,600 

11,200 

11,500 

14,200

17,000 

14,300 

12,300 

11,100 

10,000 

9,360

Apr.

8,920 

8,700 

8,270 

7,950 

7,6SO

7,370 

7,500 

8,570 

9,140 

8,910

8,170 

7.470 

7,040 

7,050 

7,080

6,590 

6,160 

5,950 

5,810 

5,660

5,570 

5,580 

5,640 

5,520 

5,270

5,150 

5,120 

5,090 

5,110 

5,070

Secondfoot-days

169,390 

172,600 

168,220

2,769,510

313,100 

373,190 

268,590 

203,110 

183,030 

174,860 

203,790 

196,320 

165,480

2,591,£BO

May

4,960 

4,980 

5,380 

5,480 

f5,610

f5,590 

5,530 

5,340 

5,150 

5,160

5,370 

5,380 

5,450 

5,790 

6,050

6,170 

6,330 

6,460 

6,620 

6,620

6,490 

6,470 

6,430 

6,410 

6,570

6,680 

6,420 

6,250 

6,100 

5,970 

5,820

Maxlnua

5,600 

6,720 

6,220

34,200

24,300 

34,000 

17,000 

9,140 

6,680 

6,290 

6,770 

6,780 

6,050

34,000

June

5,720 

5,660 

5,690 

5,690 

5,660

5,580 

5,530 

5,96O 

5,820 

5,690

' 5,660 

5,760 

5,830 

5,860 

5,710

5,890 

6,090 

6,060 

5,810 

5,630

5,530 

5,470 

5,550 

5,790 

5,990

6,290 

6,270 

6,210 

6,210 

6,250

July

6,310 

6,270 

6,270 

6,630 

6,720

6,770 

6,720 

6,640 

6,520 

6,470

6,380 

6,280 

6,240 

6,270 

6,370

6,620 

6,630 

6,620 

6,590 

6,610

6,660 

6,680 

 6,700 

6,770 

6,750

6,760 

6,750 

6,710 

6,700 

6,720 

6,660

Minimum

5,310 

5,340 

5,180

4,810

5,110 

6,590 

5,490 

5,070 

4,960 

5,470 

6,240 

5,790 

4,760

4,760

Aug.

6,660 

6,660 

6,680 

6,670 

6,710

6,670 

6,780 

6,750 

6,720 

6,670

6,450 

6,370 

6,360 

6,350 

6,330

6,330 

6,290 

6,250 

6,200 

6,130

6,100 

6,050 

6,160 

6,170 

6,190

'6,190 

6,060 

5,380 

5,890 

5,810 

5,790

Mean

5,464 

5,753 

5,426

7,588

10,100 

13,330 

3,664 

6,770 

5,904 

5,829 

6,574 

6,333 

5,516

7,100

Sept.

5,S30 

5,930 

5,970 

5,820 

5,760

5,860 

5,970 

6,050 

6,050 

5,840

5,700 

5,670 

5,670 

5,540 

5,470

5,520 

5,390 

5,330 

5,470 

5,650

5,600 

5,340 

5,210 

5,120 

5,200

5,150 

5,040 

4,810 

4,760 

4,760

Runoff in 

acre-feet

336,000 

342,300 

333,700

5,493,000

621,000 

740,200 

532,700 

402,900 

' 363,000 

346,800 

404,200 

389,400 

328,200

5,140,000

f Computed on basis of partly estimated gage-height record.
306 SACRAMENTO RIVER MAIN STEM

Sacramento River below Wilkins Slough, Calif.

Location.--Water-stage recorder, lat. 39°00'35", long. 121°49'25", in Jimeno Grant, 1,500 

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 

September 1950 in reports of Geological Survey. 1939-50 in reports of Division of Water 

Resources, Department of Public Works, State of California.

Average discharge. 10 years (1940-50), 8,415 second-feet.

Extremes.--Maximum discharge during year, 22,700 second-feet Feb. 7 (gage height, 47.89 

reet); minimum,'3,840 second-feet May 2 (gage height, 25.35 feet).

1940-50: Maximum discharge, 26,600 second-feet Feb. 8, 1942 (gage height, 52.29 

feet).

1931-50: Minimum discharge recorded, 100 second-feet Aug. 1, 1931 (gage height, 14.20 

feet).

Remarks.--Records excellent. Flow regulated by reservoirs, many diversions for irrigation, 

and bypassing for flood control. See "Remarks" for Sacramento River at Keswiek.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, in second-feet, water -year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5,320 

5,320 

5,230 

5,180 

5,130

5,110 

5,110 

5,160 

5,140 

5,170

5,260 

5,310 

5,260 

5,190 

5,140

5,100 

5,140 

5,1OO 

5,100 

5,080

5,090 

5,140 

5,170 

5,200 

5,250

5,260 

5,290 

5,310 

5,300 

5,260 

5,180

Nov.

5,180 

5,200 

5,300 

5,360 

5,380

5,400 

5,460 

5,540 

5,600 

5,900

6,520 

6,800 

6,630 

6,170 

5,820

5,790 

5,800 

5,760 

5,680 

5,710

5,650 

5,660 

5,640 

5,620 

5,600

5,600 

5,610 

5,560 

5,560 

5,440

Dec.

5,380 

5,360 

5,320 

5,350 

5,310

5,230 

5,250 

5,390 

5,830 

5,860

5,380 

5,220 

5,150 

5,260 

5,330

5,310 

5,280 

5,190 

5,270 

5,430

5,400 

5,270 

5,170 

5,010 

4,920

4,860 

4,840 

4,810 

4,840 

4,810 

4,790

Jan.

4,820 

4,810 

4,810 

4,820 

4,860

5,150 

5,270 

5,280 

5,520 

5,740

5,940 

7,740 

7,410 

6,560 

7,080

7,280 

6,670 

10,000 

18,800 

19,900

16,900 

15,200 

18,300 

18,100 

18,000

15,400 

12,300 

10,300 

9,780 

9,550 

8,730

Feb.

8,110 

7,680 

7,280 

7,350 

17,900

22,400 

22,700 

22,200 

20 , 800 

19,100

18,000 

18,100 

16,20,0 

14,000 

12,500

11,400 

11,000 

10,900 

10,800 

10,400

9,970 

9,500 

8,920 

8,490 

8,280

8,160 

8, 220 

8,230

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Apri

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

8,200 

8,100 

7,980 

7,780 

7,640

7,570 

7,720 

7,760 

7,500 

7,220

7,130 

7,010 

6,840 

6,600 

6,380

6,180 

6,000 

5,980 

7,310 

8,660

12,900 

12,800 

11,700 

12,200 

13,100

16,500 

15,500 

13,500 

12,200 

10,900 

9,820

Apr.

9,260 

8,820 

8,500 

8,100 

7,910

7,540 

7,390 

8,260 

9,280 

9,470

8,930 

8,020 

7,380 

7,150 

7,220

6,960 

6,400 

5,910 

5,640 

5,320

5,100 

5,060 

5,230 

5,200 

4,820

4,470 

4,230 

4,210 

4,230 

4,130

Secondfoot-days

161,000 

170,940 

161,820

2,574,120

301,020 

358,590 

286,680 

200,140 

153,770 

154,190 

165,960 

' 166,900 

169,710

2,450,720

May

3,900 

3,860 

4,190 

4,550 

4,760

4,830 

4,970 

4,780 

4,440 

4,170

4,180 

4,100 

4,080 

4,350 

4,730

4,860 

5,060 

5,380 

5,660 

5,760

5,630 

5,550 

5,520 

5,570 

5,690

5,900 

5,780 

5,610 

5,420 

5,310 

5,180

Maximum

5,320 

6,800 

5,860

23,100

19,900 

22,700 

16,500 

9,470 

5,900 

5,690 

5,670 

5,710 

6,270

22,700

June

5,100 

5,050 

5,040 

5,010 

'4,960

4,870 

4,830 

5,120 

5,170 

5,130

5,130 

5,250 

5,330 

5,440 

5,330

5,380 

5,570 

5,690 

5,480 

5,180

5,010 

4,820 

4,750 

4,900 

5,020

5,220 

5,180 

5,110 

5,010 

5,110

July

5,200 

5,280 

5,190 

5,380 

. 5,490

5,480 

5,410 

5,360 

5,220 

5,180

5,130 

4,990 

4,860 

4,850 

4,930

5,230 

5,320 

5,270 

5,280 

5,370

5,480 

5,540 

5,590 

5,640 

5,670

5,630 

5,560 

5,590 

5,590 

5,620 

5,630

Aug.

5,550 

5,520 

5,520 

5,46O 

5,570

5,710 

5,680 

5,640 

5,620 

5,560

5,320 

5,270 

5,340 

5,310 

5,310

5,320 

5,290 

5,220 

5,240 

5,180

5,220 

5,310 

5,420 

5,490 

5,460

5,500 

5,440 

5,200 

5,160 

5,060 

5,010

Minimum Mean

5,080 5,194 

5,180 5,698 

4,790 5,220

Sept.

5,010 

5,030 

5,070 

5,220 

5,110

5,220 

5; 460 

5,690 

5,840 

5,820

5,780 

5,810 

5,920 

5,970 

5,920

5,970 

6,130 

6,040 

6,060 

6,200

6,270 

6,080 

5,860 

5,740 

5,660

5,730 

5,570 

5,400 

5,150 

4,980

Runoff in 

acre -feet

319,300 

339,100 

321,000

4,600 7, 052~] 5,106,000

- _ _ _L

V 4,810 9,710 

7,280 12,810 

5,980 9,248 

4,130 6,671 

3,860 4,960 

4,750 5,140 

4,850 5,354 

5,010 5,384 

4,980 5,657

3,860 6,714

597,100 

711,300 

568,600 

397,000 

305,000 

305,800 

329,200 

331,000 

336,600

4,861,000
SACRAMENTO RIVER MAIN STEM 307

Sacramento River at Knights Landing, Calif.

Location.--Water-stage recorder, lat. 38°48'10", long. 121°42'55", in NE^ sec. 14, T. 11 

N., R. 2 E., Just upstream from Southern Pacific Railroad bridge at Knights Landing. 

Zero of gage is set to datum of Corps of Engineers. Auxiliary gage is water-stage 

recorder at upstream end of Fremont weir, 6.0 miles downstream.

Records available. April 1921 to October 1939 (low-water periods only) and June 194tTto 

September 195U in reports of Geological Survey. 1939-50 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Average discharge. 10 years (1940-50), 8,836 second-feet.

Extremes.--Maximum discharge during year, 22,500 second-feet Feb. 8 (gage height, 37.55 

TeeTT; minimum discharge, 3,490 second-feet May 1; minimum gage height, 15.62 feet 

July 14.

1940-50; Maximum discharge, 27,900 second-feet Feb. 9, 1942; maximum gage height,., 

41.83 feet Feb. 8, 1942.

1921-50: Maximum discharge recorded, 250 second-feet July 83, 1931 (gage height,

Remarks. Records excellent. Flow regulated by reservoirs, many diversions for irrigatlon, and bypassing for flood control; considerable return water from irrigation. See 

"Remarks" for Sacramento River at Keswick. 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.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

?,

3

4

5

6

7

8

9

10

11

14

16

IV

18

19

20

21

22

24

25

26

27

28

29

30

31

Oct.

6.O9O

6,O3O

5,970

5,860

5,840

5,720

5,720

5,830

5,830

5,930

5,880

5,940

5,950

5,850

5,860

5,790

5,740

5,750

5,660

5,610

5,640

5,690

5,710

5,780

5,770

5,830

5,830

5,840

5,910

5,910

5,780

Nov.

5,780

5,880

5,900

5,930

5,940

6,040

6,100

6,190

6,260

6,590

7,210

7,560

7,380

6,800

6,340

6,220

6,320

6,310

6,260

6,320

6,190

6,160

6,150

6,180

6,150

6,090

6,090

6,030

5,960

5,900

-

Dec.

5,770

5,740

5,680

5,740

5,700

5,560

5,480

5,540

5,820

6,220

5,750

5,490

5,350

5,320

5,530

5,430

5,560

5,400

5,420

5,650

5,670

5,650

5,600

5,490

5,380

5,300

5,330

5,350

5,320

5,320

5,310

Jan..

5,350

5,230

5,260

5,210

5,25O

5,410

5,690

5,710

5,900

6,230

6,220

7,580

8,480

7,370

7,460

8,180

6,980

7,780

17,200

21,200

18,300

14,900

17,400

17,400

17,500

15,600.

12,700

10,700

9,810

10,200

9,670

Feb.

9,000

8,490

7,940

7,660

13,600

20,800

21,900

22,000

20,900

19,100

17,300

17,900

18,600

14,600

12,900

11,800

11,400

11,300

11,500

11,100

10,900

10,300

9,790

9,360

9,050

8,710

8,700

8,630

_

_

-

Month

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

Calendar year 1949 ......................

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

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

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

Mar.

8,640

8,480

8,500

8,240

8,130

7,820

7,900

8,160

8,070

7,730

7,550

7,300

7,140

6,890

6,640

6,490

6,260

5,840

6,840

7,570

11,400

12,900

11,500

11,600

11,500

15,700

15,900

14,200

12,900

11,800

10,900

Apr.

10,200

9,710

9,390

9,050

9,000

8,820

7,830

8,540

9,410-

9,940

9,930

9,350

8,970

8,100

7,830

7,860

7,290

6,400

5,810

5,370

4,930

4,750

4,710

4,750

4,530

4,350

4,170

4,190

-4,010

4,170

-

Secondfoot-days

171,870

2,771,320

175,070

200,060

2,582,120

May

3,900

3,560

3,580

4,340

4,770

4,930

5,320

5,370

5,160

4,410

4,240

4,050

3,840

4,650

5,110

5,140

5,170

5,720

6,240

6,500

6,470

6,060

6,020

5,870

5,940

6,160

6,170

6,100

5,590

5,730

5,320

Maximm

6,220

23,800

5,960

7,580

22,000

June

5,O10

5,030

5,090

5,210

5,190

5,140

4,960

5,240

5,470

5,460

5,560

5,730

5,940

6,110

5,890

5,860

6,200

6,470

6,120

5,7SO

.5,540

5,080

5,000

5,330

5,450

5,320

5,270

5,320

5,250

5,310

-

Minimum

5,300

4;760

5,380

5,470

3,560

July

5,310

5,290

4,980

5,260

5,440

5,520

5,460

5,360

5,260

5,130

5,080

5,020

4,900

4,870

4,870

5,260

5,400

5,370

5,290

5,370

5.43O

5,500

5,640

5,620

5,720

5,660

5,550

5,58O

5,570

5,640

5,500

. Aug.

5,450

5,430

5,450

5,480

5,560

5,960

5,840

5,S30

5,960

5,880

5,750

5,620

5,730

5,590

5,570

5,620

5,650

5,570

5,590

5,600

5,380

5,480

5,620

5,730

5,750

5,720

5,860

5,530

5,630

5,660

5,580

Mean

5,544

7,593

9 371

5,647

6,669

7,074

Sept.

5,550

5,620

5,830

5,940

5,760

6,050

6,650

7,050

7,310

7,560

7,360

7,490

7,580

7,540

7,450

7,360

7,460

7,220

7,170

7,300

7,220

6,920

6,480

6,290

6,840

6,360

6,150

5,980

5,700

5,470

-

Runoff in 

acre-feet

373 300

340,900

5,497,000

396,800

5,122,000
308 SACRAMENTO RIVER MAIN STEM 

Sacramento River at Verona, Calif.

Location. Water-stage recorder, lat. 38°46'50", long. 121°36'15", in SE£ sec. 23, T. 11 

K., 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 1950 (1926-29, low-water periods only) in 

reports or Cieological Survey. 1926-50 (1926-29, gage heights only) in reports of 

Division of Water Resources, Department of Public Works, State of California.

Average dis charge. 21 years (1929-50), 16,380 second-feet.

Extremes. Maximum discharge during year, 59,500 second-feet Feb. 7; maximum gage height, 

35.18 feet Feb. 7; minimum discharge. 5,640 second-feet July 14 (gage height,'11.45 

feet).

1926-50: 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).

1934-50: 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. 394). Elevation of crest of Fremont weir, 

33.5 feet (datum of Corps of Engineers).

Discharge, In second-feet, water year October 1949 to September 1950

-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.

7.OOO 

6,970 

6,780 

6.68O 

6,610

6,560 

6,660 

6,580 

6,620 

6,790

6,810 

6,810 

6,840 

6,680 

6,670

6,580 

6,440 

6,280 

6,130 

6,160

6,360 

6,520 

6,560 

6,540 

6,600

6,620 

6,640 

6,680 

6,620 

6,610 

6,490

Nov.

6,560 

6,720 

6,740 

6,900 

6,970

. B,9ZO 

6,940 

6,970 

7,210 

7,780

10,200 

10,800 

9,980 

9,260 

8,690

8,380 

8,300 

8,280 

8,240 

8,060

7,720 

7,590 

7,830 

7,860 

7,670

7,450 

7,400 

7,320 

7,050 

7,060

Dec.

7,03O 

6,900 

6,950 

6,950 

6,870

6,660 

6,900 

7,220 

7,700 

7,880

7,300 

6,810 

6,490 

6,560 

6,950

7,300 

7,370 

7,480 

7,660 

7,830

7,820 

7,590 

7,300 

6,970 

6,520

6,340 

6,190 

6,160 

6,220 

6,080 

6,130

Jan.

6,200 

6,180 

6,040 

6,180 

a6,9OO

a7,300 

a7,590 

a7,800 

a8,070 

a8,410

9,180 

10,900 

11,600 

10,700 

10,900

11,50O 

13,800 

25,800 

34,800 

36,900

33,300 

31,400 

c36,600 

C39.200 

44,600

40,900 

32,800 

27,200 

25,900 

22,000 

18,500

Feb.

16,500 

15.00O 

13,700 

15,800 

37,500

53,500 

c58,300 

58,600 

56,500 

53,700

51,500 

49,200 

44,600 

38,200 

32,700

28,900 

27,100 

25,800 

24,500 

23 , 100

22,000 

21,400 

20,400 

19,400 

18,600

18,5OO 

18,500 

18,600

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Nav

June 

July 

Augu 

Sept.

Ma

ber. ....................................

lendar year 194S 

ax*y

....... . .

h. ......................................

ter year 1949-50 .......................

Mar.

19,400 

19,400 

19,000 

18,500 

18,300

18,600 

18,900 

18,600 

17,600 

16,800

16,000 

15,500 

14,800 

13,700 

13,600

13,200 

12,600 

14,000 

17,200 

23,400

30,100 

32,100 

32,100 

34,100 

38,600

42,200 

42,000 

38,400 

34,500 

31,100 

28,300

Apr.

26,500 

25,600 

25,400 

25,500 

25,300

25,100 

26,800 

29,900 

33,100 

33,600

31,500 

29,100 

27,100 

27,100 

27,400

26,400 

25,000 

24,200 

24,000 

23,800

24,300 

25,200 

26,100 

26,300 

25,300

23,600 

22,400 

22,000 

21,900 

20,800

Secondfoot-days

204,890 

234,850 

216,130

4,605,530

599,150 

882,100 

722,600 

780,300 

609,400 

354, 780 

201,200 

202,990 

259,520

5,267,910

May

18,800 

18,500 

19,200 

1S,6OO 

17,400

16,900 

17,000 

16,200 

14,800 

13,300

12,900 

13,300 

14,600 

16,800 

18,900

020,300 

c21,300 

23,200 

23,500 

23,500

23,300 

c23,200 

c23,500 

23,800 

24,200

24,200 

23,200 

22,000 

21,300 

20,900 

20,800

Maximum

7,000 

10,800 

7,880

56,100

44,600 

58,600 

42,200 

33,600 

24,200 

21,300 

7,430 

6,760 

10,400

58,600

June

21,300 

20,600 

19,100 

18,100 

16,600

15,100 

14,100 

12, 700 

12,200 

11,300

10,800 

10,700 

11,100 

11,200 

10,900

10,700 

10,800 

11,000 

10,600 

10,200

10,100 

9,730 

9,210 

9,250 

8,870

8,230 

7,690 

7,690 

7,480 

7,430

July

7,430 

7,420 

7,100 

6,970 

7,080

6,920 

6,700 

6,500 

6,440 

6,300

6,160 

6,020 

5,860 

5,720 

5,800

6,140 

6,380 

6,260 

6,040 

6,010

6,220 

6,240 

6,440 

6,540 

6,680

6,730 

6,680 

6,640 

6,500 

6,640 

6,640

HlnlnuB

6,130 

6,560 

6,080

5,800

6,040 

13,700 

12,600 

20,800 

12,900 

7,430 

5,720 

6,320 

6,490

6,040

Aug.

6,480 

6,430 

6,370 

6,360 

6,320

6,640 

6,680 

6,640 

6,760 

6,740

6,600 

6,490 

6,580 

6,540 

6,480

6,520 

6,580 

6,490 

6,480 

6,480

6,430 

6,420 

6,490 

6,610 

6,610

6,640 

6,740 

6,560 

6,540 

6,680 

6,610

Mean

6,609 

7,828 

6,972

12,620

19,330 

31,500 

23,310 

26,010 

19,660 

11,830 

6,490 

6,550 

8,650

14, 430

Sept.

6,520 

6,490 

6,600 

6,760 

6,620

6,760 

7,290 

7,910 

8,400 

8,960

9,280 

9,470 

9,970 

10,300 

10,300

10,300 

10,400 

10,300 

10,100 

10,200

10,100 

9,640 

9,060 

8,840 

8,450

8,410 

8,360 

8,210 

7,880 

7,640

Runoff in 

acre-feet

/ 406,400 

465,800 

428,700

9,135,000

1,188,000 

1,750,000 

1,433,000 

1,548,000 

1,209,000 

703,700 

399,100 

402,600 

514,800

10,450,000

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

c Backwater from American River; discharge computed from channel conveyance.
PIT RIVER BASIN 309

Pit River near Canby, Calif.

Location. Water-stage recorder, lat. 41°24', long. 120°55', in sw£ sec. 10, T. 41 N., R.

STE77 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. 

Kecoras available . January 1904 to December 1905, May 1929 to September 1950 (1929-31

incomplete).

Average discharge. 19 years (1931-50), 199 second-feet, 

jsxtremes. waxflium discharge during year, 956 second-feet Mar. 23 (gage height, 4.36

reet); minimum, 4.3 second-feet Aug. 13, 14.

1904-5, 1929-50: 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 good except those for periods of ice effect or no gage-height record,

wnicn are poor. Plow regulated by many small reservoirs since beginning of record

(total usable capacity now about 100,000 acre-feet). Many diversions above station for

irrigation. 

Revisions. W 861: Drainage area.

Rating table, water year 1949-5O, except periods of loe effect

(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used Aug. 25 to Sept. 8)

2.0

2.1

2.2 

2.5 

2.4

2.0

4.6

9.5

17

30

2.5

2.6

2.7

2.8 

5.0

47

69

95

125

205

5.2 

5.4 

3.S 

4.2 

4.6

500 

40O 

62O 

86O 

1,110

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

15 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

26 

29 

30 

31

Oct.

56 

49 

45 

55 

28

21 

17 

16 

42 

87

87 

79 

74 

74 

67

54 

45 

45 

47 

49

72 

67 

56 

60 

60

58 

45 

44 

49 

62 

65

Nov.

58 

58 

62 

60 

56

51 

51 

60 

67 

90

140 

129 

116 

95 

82

74 

72 

72 

74 

74

72 

72 

69 

74 

69

72 

72 

74 

77 

74

Dec.

77 

72 

69 

69 

69

67 

67 

65 

67 

67

b40 

b40 

»U50 

54 

45

49 

56 

62 

b55 

b40

b40 

b40 

b45 

b45 

b40

b40 

b45 

60 

60 

62 

b50

Jan.

b5O

74 

110 

129

260 

504 

752 

716 

668

'510 

265 

210 

alSO 

a!20 

alOO

Feb.

, a26O

(*)

460 

521 

422 

530 

275

257 

196 

171 

158 

166

171 

175 

158

Month

Octo 

Hove

Decs

Ca

Janu 

Febr 

Marc 

Aprl

Mflir

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 1949

ter year 1949-5O .......................

Mar.

145 

152 

125 

122 

152

155 

188 

205 

209 

237

246 

218 

175 

175 

214

280 

540 

400 

565 

674

746' 

884 

952 

860 

794

650 

554 

485 

590 

515 

275

Apr.

305 

540 

585 

422 

360

540 

365 

375 

560 

515

275 

270 

280 

280 

295

275 

255 

265 

305 

275

28O 

295 

310 

355 

575

550 

530 

295 

270 

260

Secondfoot-days

1,653 

2,266 

1,707

87,518.4

5,418 

7,340 

11,818 

9,462 

7,360 

5,997 

1,520.7 

680.7 

1,508.0

54,550.4

May

246 

255 

280 

550 

375

395 

4OO 

375 

520 

241

192 

196 

158 

162 

156

74 

47 

26 

254 

555

411 

535 

305 

255 

255

260 

228 

188 

.158 

94 

54

Maximum

87 

140 

77

1,860 -

752

952 

422 

411 

56O 

152 

69 

166

932

June

110 

90 

47 

51 

60

 49 

38 

32 

26 

72

560 

530 

227 

145 

104

125 

162 

162 

143 

116

162 

90 

98 

74 

65

125 

241 

275 

256 

184

July

«*»

16

51 

40

4.5

122 

255 

26 

26 

7 .7 

4.5 

9.5

4.3

77 

33

25 

19 

16

14 

26 

101 

132 

58

58 

54 

47 

57 

42

45 

51 

72 

56 

55

21 

27 

40 

72 

57

26 

7J7 

11 

32 

32 

21

Aug.

12 

26 

23 

10 

8.5

7.2 

7.7 

8.9 

8.9 

8.3

6.2 

4.6 

4.5 

4.5 

21

69 

49 

62 

57 

56

42 

24 

24 

44 

.24

14 

14 

14 

14 

16 

17

Mean

53.3 

75.5 

55.1

240

175 

262 

381 

515 

257 

155 

42.6 

22.0 

50.5

149

Sept.

17 

11 

9.5 

9.5 

15

14 

13 

21 

136 

166

92 

69 

65 

60 

54

54 

47 

42 

49 

51

56 

60 

54 

54 

51

54 

51 

51 

42 

42

Runoff In 

acre-feet

5,280 

4,490 

5,390

175,600

10,750 

14,560 

25,440 

18,770 

14,600 

7,950 

2,620 

1,550 

2,990

108,200

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for South Pork Pit River near 

Likely. 

, b Stage-discharge relation affected by ice.

207481 O - 52 - 21
310 PIT RIVER BASIN 

Pit River at Pall River Mills, Calif.

Location. Water-stage recorder, lat. 41°00', long. 121°26', in NE£ sec. 6, T. 36 N., R. 

5~E77 0.8 mile downstream from Pall River and town of Pall River Mills. Altitude of 

gage, about 3,235 feet (from topographic map).

Drainage area. 4,150 square miles, excluding Goose Lake Basin.

Records available. December 1922 to September 1950. March 1921 to December 1922 at site 

u.v mile upstream.

Average discharge. 27 years (1923-50), 459 second-feet (excluding flow of Pall River).

Extremes. Maximum discharge during year, 2,830 second-feet Mar. 27 (gage height, 4.20 

TeeTT; minimum, 56 second-feet July 30.

1921-50: 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 period of no gage-height record, which are fair. 

Flow regulated by many small reservoirs (total usable capacity now about 123,000 acrefeet ). Pall River is diverted through Pit No. 1 powerhouse and returned to Pit River 

below station. Many diversions above station for irrigation. River receives return 

flow from McArthur, Knoch, and other diversions above station.

Cooperation.--Water-stage recorder graph furnished by Pacific Gas & Electric Co.

Rating table, water year 1949-5O (gage height, In feet, 

and discharge, in second-feet)

0.4 57 1.3 268 2.7 1,150 

.5 72 1.5 350 3.O 1,410 

.7 108 1.8 510 3.4 1,790 

.9 ISO 2.1 695 3.8 2,270 

1.1 2O3 2.4 915 4.2 2,83O

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

98 

100 

104 

290 

186

148 

137 

130 

126 

124

122 

118 

114 

126 

160

152 

141 

128 

172 

183

155 

137 

130 

130 

139

148 

170 

135 

141 

170 

137

Nov.

75 

77 

130

141 

175

146 

139 

146 

183 

181

192 

195 

203 

225 

218

209 

200 

186 

178 

175

175 

183 

195 

178 

175

172 

181 

175 

168 

172

Dec.

175 

181 

178 

175 

175

178 

189 

192 

186 

181

158 

146 

158 

155 

168

165 

170 

178 

170 

126

132 

141 

143 

152 

150

141 

139 

132 

114 

110 

130

Jan.

139 

150 

135 

137 

139

128 

130 

141 

139 

148

141 

137 

139 

122 

100

104 

146 

170 

181 

225

298 

728 

1,530 

1,650 

1,540

1,680 

1,380 

990 

630 

488 

332

Feb.

298 

258 

244 

258 

261

925 

1,570 

2,020 

1,870 

1,540

1,280 

1,100 

982 

93O 

1,94O

2,340 

1.670 

1,880 

1,830 

1,580

1,390 

1,15O 

998 

938 

99O

1,070 

1,060 

975

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

855 

751 

669 

612 

594

a660 

a730 

a770 

a820 

a9OO

9OO 

840 

818 

744 

636

606 

716 

1,050 

1,620 

2,270

2,480 

2,020 

2,020 

2,440 

2,640

2,720 

2,780 

2,440 

1,820 

1,540 

1,360

Apr.

1, 

1,

1, 

1, 

1, 

1, 

1,

1,

Secondfoot -days

4,451 

5,148 

4,888

168,053

14,097 

33,347 

41,821 

25,831 

13,723 

5,005 

3,636 

2,364 

3,002

157,363

130 

010 

982 

990 

990

010 

050 

120 

170 

190

050 

922 

855 

9OO 

975

938 

855 

795 

737 

702

709 

676 

656 

650 

643

656 

676 

650 

630 

564

May

534 

552 

618 

662 

688

744 

825 

900 

870 

772

682 

57O 

494 

460 

400

272 

181 

130 

257 

218

160 

116 

120 

137 

252

564 

332 

360 

29S 

287 

268

Maximum

29O 

225

192

2,600

1,680 

2,340 

2,780 

1,190 

900 

416 

468 

89 

139

2,780

June

258 

192 

146 

124 

112

100 

132 

130 

112 

110

108 

108 

108 

98 

84

147 

241 

416 

268 

287

215 

183 

170 

172 

197

175 

165 

155 

146 

146

July

141 

468 

376 

203 

158

135 

106 

1OO 

95 

93

91 

84 

77 

72 

132

128 

116 

104 

86 

79

74 

87 

79 

75 

75

74 

62 

63 

68 

63 

72

Aug.

69 

63 

79 

77 

82

86 

84 

82 

79

75

62 

63 

74 

86 

64

68 

77 

8E 

87 

84

80 

74 

70 

63 

66

72 

77 

77 

89 

87 

86

Sept.

82 

82 

86 

82 

70

84 

86 

10O 

104 

93

91 

91 

93 

91 

89

93 

98 

106 

108 

110

108 

106 

108 

104 

114

139 

130 

120 

118 

116

Minimum Mean *£*£

98 144 8,83O 

75 172 10,210 

11O 158 9,700

460 333,400

100 455 27,960 

244 1,191 66,140 

594 1,349 82,950 

564 863 51,330 

116 443 27,220 

84 167 9,930 

62 117 7,210 

62 76.3 4,690 

70 10O 5>,95O

62 431 312,100

a No gage-height record; discharge interpolated.
PIT RIVER BASIN 311

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

Location. Water-stage recorder, lat. 40 0 59', long. 121°47', in SWir sec. 17, T. 36 N., R.

a JS., 1 mile downstream from Pit No. 4 Dam and 3 miles downstream from Screwdriver Creek

and Pit No. 3 powerhouse. Altitude of gage, about 2,345 feet (from river-profile map). 

Drainage area. 4,860 square miles, excluding Goose Lake Basin. 

Kecoras available.--July 1927 to September 1950. 

Average aiscnarle. 39 years (1911-50), 2,583 second-feet. Period 1911-27 extrapolated on

oasis or records for Pit River at Big Bend. 

Extremes. Maximum discharge during year, 6,220 second-feet Jan. 24 (gage height, 10.13

reet); minimum, 464 second-feet July 23.

1927-50: Maximum discharge, 30,200 second-feet Dec. 12, 1937 (gage height, 17.90

feet), from rating curve extended above 8,000 second-feet on basis of velocity-area

studies; minimum, 144 second-feet Apr. 15, 1945. 

Remarks. Records excellent except those for periods of no gage-height Record, which are

good. Plow regulated by reservoirs and power plants. Many diversions above station for

Irrigation. 

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project. 

Revisions (water years). W 843: 1935(M).

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, in second-feet)

5.7 470 6.7 1,180 8.0 2,560 

5.8 530 7.0 1,450 8.5 3,270 

6.1 720 7.3 1,740 9.0 4,050 

6.4 940 7.6 2,060 9.6 5,150

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,350 

698 

2,130 

2,290 

2,070

1,950 

1,840 

1,280 

1,550 

2,410

2,110 

2,310 

2,390 

2,190 

1,360

887 

2,490 

2,560 

2,640 

2,480

2,480 

997 

565 

2,150 

2,380

.2,170 

2,340 

2,310 

2,350 

1,340 

2,310

Nov.

2,360 

1,970 

2,070 

2,010 

1,930

782 

2,330 

2,330 

2,340 

2,540

2,630 

1,530 

720 

2,240 

2,350

2,320 

2,350 

2,310 

1,470 

939

2,330 

2,500 

2,500 

1,740 

2,270

1,550 

940 

2,340 2,300- 

2,230

Dec.

2,350 

2,410 

1,740 

1,080 

2,110

2,300 

2,330 

2,110 

2,360 

1,290

678 

2,370 

2,320 

2,350 

2,270

2,010 

1,210 

1,440 

2,160 

2,460

2,520 

2,460 

2,420 

1,600 

1,480

1,420 

2,240 

2,250 

2,360 

2,420 

1,890

Jan.

906 

542 

2,470 

a2,500 

32,400

a2,400 

1,290 

1,050 

2,410 

2,350

2,400 

2,430 

2,460 

1,260 

1,120

2,310 

2,400 

2,580 

2,410 

1,980

1,630 

2,210 

3,790 

4,550 

4,070

3,870 

3,830 

3,590 

3,460 

2,980 

2,460

Feb.

2,400 

2,000 

32,200 

al,lOO 

al,900

a3,000 

34,000 

34,400 

4,660 

4,120

3,830 

3,700 

3,600 

3,670 

3,190

3,390 

3,420 

3,630 

3,950 

4,020

3,870 

3,680 

3,570 

3,560 

3,520

3,120 

3,150 

3,270

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

Mar

June 

July 

Augu 

Sept

Wa

her. ....................................

niber. ...................................

lendar year 194S 

ary

. .. ..... ...........

uaiT ."^ .

ter year 1949-50 .......................

Mar.

3,400 

3,450 

3,320 

1,560 

1,720

2,990 

3,560 

3,450 

3,570 

3,360

3,120 

1,820 

2,790 

3,110 

3,210

2,760 

2,980 

3,520 

3,010 

3,140

4,340 

4,480 

4,540 

4,770 

5,130

5,290 

5,210 

5,070 

4,480 

4,050 

3,870

Apr.

3, 

3,

3, 

3, 

3,

3, 

3, 

3, 

3,

3,

3, 

3, 

3, 

3, 

3,

3,

3, 

3, 

3,

3,

3,

z,

2,

2, 

2,

3, 

3, 

3, 

3, 

3,

Secondfoot-days

60,377 

60,241 

62,408

857,070

76,108 

93,920 

111,070 

99,130 

79,270 

58,557 

55,360 

56,161 

55,840

868,442

600 

150 

270 

57Q 

570

620 

460 

380 

520 

390

460 

360 

500 

500 

480

320 

210 

060 

540 

460

400 

810 

500 

700 

910

200 

390 

390 

330 

080

Hay

2,960 

1,700 

2,280 

3,220 

2,310

2,090 

2,930 

2,820 

3,160 

3,120

2,920 

2,710 

2,660 

2,560 

2,500

2,730 

2,460 

2,390 

2,370 

2,460

2,300 

2,430 

2,260 

2,300 

2,200

2,240 

2,780 

2,130 

2,600 

3,230 

2,450

Maximum

2,640 

2,630 

2,520

4,990

4,550 

4,660 

5,290 

3,620 

3,230 

2,890 

2,430 

2,390 

2,430

5,290

June

2,450 

2,390 

2,690 

1,720 

2,440

2,350 

2,310 

1,780 

1,760 

1,320

1,330 

2,150 

2,420 

2,370 

1,650

1,430 

755 

488 

2,030 

2,120

2,330 

2,280 

2,410 

2,320 

854

1,760 

" 2,010 

2,210 

2,220 

2,210

July

2,100 

996 

2,180 

1,860 

2,140

2,390 

1,360 

755 

1,090 

2,000

2,180 

2,310 

2,430 

2,260 

750

1,060 

2,160 

2,180 

2,130 

2,260

2,260 

940 

586 

2,120 

2,060

2,130 

2,160 

2,100 

962 

741 

2,210

Aug.

2,250 

2,390 

2,360 

1,960 

543

590 

2,130 

2,370 

2,270 

2,240

2,120 

1,080 

482 

2,130 

2,270

2,200 

2,040 

1,890 

885 

1,060

2,170 

2,100 

2,280 

2,120 

2,030

1,230 

586 

2,100 

1,980 

2,100 

2,200

Minimum Mean

565 1,948 

720 2,008 

878 2,013

452 2,348

542 2,455 

1,100 3,354 

1,580 3,583 

2,500 3,304 

1,70Q 2,557 

488 1,952 

586 1,788 

482 1,812 

775 1,861

482 2,379

Sept.

2,220 

1,740 

864 

1,050 

2,220

2,380 

2,190 

1,810 

989 

1,650

2,230 

2,240 

2,330 

2,250 

1,730

1,010 

775 

2,120 

2,380 

2,430

2,170 

2,120 

1,290 

932 

2,100

2,360 

2,290 

2,360 

2,350 

1,260

Runoff In 

acre-feet

119,800 

119,500 

123,800

1,700,000

151,000 

186,300 

220,300 

196,600 

157,200 

116,100 

109,800 

111,400 

110,800

1,723,000

a Ho gage-height record; discharge computed on basis of records for stations at Big Bend and near 

Montgomery Creek and unpublished record of diversion through Fit No. 5 powerhouse.
312 PIT RIVER BASIN 

Pit River at Big Bend, Calif.

Location. Water-stage recorder, lat. 41°01', long. 121°55', in sec. 31, T. 37 N,, R. 1 

 E., at settlement of Big Bend, 0.5 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 1950.

Extremes. Maximum discharge during year, 2,690 second-feet Mar. 26 (gage height, 8.80 

reet); minimum, 45 second-feet Dec. 15 (gage height, 4.13 feet).

1910-50: Maximum discharge, 34,200 second-feet Dec. 12, 1937 (gage height, 16.26 

feet), from rating curve extended above 11,000 second-feet on basis of velocity-area 

studies; minimum, 44 second-feet Oct. 30, Nov. 30, 1948 (after diversion to Pit No. 5 

powerhouse).

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

Flow regulated by reservoirs and power plants above station. Many diversions above 

station; diversion to Pit No. 5 powerhouse began May 1, 1944. For record closely comparable with previous record of total flow at Big Bend see Pit River below Pit No. '4 

Dam on preceding page.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

4.1 43 5.0 160 6.6 675 

4.2 51 5.4 242 7.1 990 

4.4 71 5.8 350 7.6 1,3SO 

4.7 111 6.2 495 8.3 2,080

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

126 

122 

128 

131 

129

129 

129 

128 

128 

126

128 

123 

123 

122 

120

123 

122 

123 

124 

123

123 

123 

128 

123 

123

122 

123 

128 

124 

120 

120

Mov.

101 

80 

81 

81 

81

84 

87 

103 

154 

116

110 

94 

84 

88 

87

S3 

87 

85 

85 

87

85 

84 

83 

80 

84

80 

79 

83 

84 

84

Dec.

a60 

a55 

a55 

a55 

53

51 

52 

52 

50 

50

50 

50 

50 

50 

50

56 

71 

76 

63 

54

53 

54 

54 

53 

52

51 

52 

53 

53 

52 

51

Jan.

50 

52 

53 

51

51

52 

53 

62 

55 

62

57 

55 

60 

58 

56

58 

119 

207 

156 

123

236 

344 

786 

al,700 

a900

a700 

a700 

a400 

a250 

a200 

also

Feb.

alOO 

alOO 

alOO 

129 

151

300 

642 

936 

1,120 

639

434 

199 

118 

108 

111

118 

120 

123 

366 

540

417 

309 

194 

137 

147

156 

156 

158

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

mber. .................."................

lendar year 194S 

ary (

..... . ......

h. ......................................

ter year 1949-50 .......................

Mar.

156 

149 

153 

158 

185

179 

170 

164 

175 

166

156 

144 

140 

136 

132

131 

168 

166 

195 

185

829 

1,320 

1,290 

1,520 

2,060

2,050 

1,950 

1,830 

1,210 

759 

545

Apr.

383 

328 

249 

249 

279

369 

287 

282 

917 

632

252 

212 

224 

214 

210

212 

216 

222 

229 

240

247 

247 

258 

229 

216

212 

210 

227 

261 

254

Secondfoot -days

3,864 

2,694 

1,681

71,035

7,856 

8,128 

18,571 

8,567 

6,917 

4,819 

4,264 

3,987 

3,830

75,178

May

289 

279 

266 

259 

256

247 

240 

233 

231 

231

235 

235 

23S 

235 

233

229

224 

220 

216 

214

207 

203 

201 

199 

193

189 

187 

187 

181 

181 

179

Maximum

131 

154 

76

1,850

1,700 

1,120 

2,060 

917 

289 

177 

146 

132 

134

2,060

June

177 

175 

171 

170 

170

171 

170 

168 

168 

160

164 

166

160 

162

162 

162 

164 

158 

158

155 

153 

155 

151

151

149 

142 

149 

146 

146

July

146 

140 

142 

137 

142

139 

140 

142 

144 

144

142 

139 

137 

137 

139

139 

137 

139 

136 

137

134 

134 

139 

134 

129

132 

136 

134 

131 

- 132 

131

Aug.

131 

131 

131 

129 

123

126 

132 

131 

129 

129

128 

128 

132 

129 

126

126 

129 

129 

128 

128

131 

128 

129 

126 

128

126 

128 

128 

129 

128 

131

Minimum Mean

120 125 

79 89.8 

50 54.2

47 195

50 253 

100 290 

131 599 

210 286 

179 223 

146 161 

129 138 

123 129 

124 128

50 206

Sept.

131 

126 

£29 

128 

128

128 

126 

132 

131 

134

129 

126 

126 

126 

124

129 

128 

126 

124 

126

124 

129 

128 

129 

129

126 

'126 

128 

126 

128

Runoff In 

acre-feet

7,660 

5,340 

3,330

140,900

15,580 

> 16,120 

36,840 

16,990 

13,720 

9,560 

8,460 

7,910 

7,600

149,100

a No gage-height record; discharge computed on basis of records for stations below Pit No. 4 Dam 

and near Montgomery Creek and unpublished records of waste and diversion through Pit No. 5 powerhouse.
PIT RIVER BASIN 313

Pit River near Montgomery Creek, Calif.

Location. Water-stage recorder, lat. 40°51', long. 121°59', in NEi sec. 32, T. 35 N., R. 

 1 W., 1 mile upstream from Cow Canyon Creek and 3.5 miles west of town <?f 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 1950.

Extremes. Maximum discharge during year, 11,000 second-feet Jan. 23 (gage height, 7.68 

reet ); minimum, 620 second-feet Oct. 23.

1944-50: Maximum discharge, 18,600 second-feet Dec. 28, 1945 (gage height, 10.14 

feet); minimum, 570 second-feet Oct. 21, 1945.

Remarks. Records excellent. Plow regulated by many small reservoirs and several power 

plants above station since beginning of record.' Many diversions above station for 

irrigation. This station will be Just above pool stage when Shasta Lake is full.

Ratlog table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

2.1 650 4.0 2,700 6.0 6,580

2.5 940 4.5 3,51C

3.0 1,410 5.0 4,40C

6.5 7, BOO

7.0 9,100

3.5 2,010 5.5 5,440

Discharge, in second-feet, water year October 1949 to September 1950

Day

I

Z

3

4

5

6

7

8

9

10

IX

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,510

876

2,270

2,550

2,170

2,100

2,010

1,290

1,710

2,610

2,420

2,490

2,520

2,490

1,440

988

2,620

2,760

2,840

2,670

2,450

1,150

724

2,300

2,420

2,450

2,510

2,490

2,540

1,510

2,580

NOT.

2,520

2,110

2,170

2,170

2,100

892

2,610

2,640

2,990

2,990

3,060

1,760

1,010

2,470

2,540

'2,490

2,510

2,490

1,580

1,040

2,560

2,780

2,700

1,910

2,370

1,810

1,120

2,510

2,600

2,470

-

Dec.

2,550

2,560

1,930

1,210

2,510

2,540

2,560

2,370

2,510

1,390

924

2,400

2,480

2,540

2,480

2,200

1,660

1,840

2,450

2,600

2,760

2,620

2,620

1,840

1,590

1,590

2,540

2,380

2,550

2,550

2,050

Jan.

1,100

759

2,560

2,720

2,560

2,610

1,320

1,170

2,520

2,850

2,610

2,660

2,680

1,390

1,370

2,400

3,140

4,500

4,260

3,030

3,700

5,260

9,100

7,060

5,770

5,030

4,860

4,480

4,270

3,730

3,010

Feb.

2,960

2,510

2,640

1,770

3,150

6,180

5,840

5,840

6,000

5,440

5,090

4,660

4,540

4,520

4,540

4,170

4,620

4,820

5,010

5,370

5,180

5,030

4,860

4,820

4,970

4,580

4,500

4,800

-

_

-

Month

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

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

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

Calendar year 1949 ......................

January

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

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

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

May. ......:.........................,.....,

June ..........:...................,........

July..............................].... ....

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

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

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

Mar.

4,840

4,970

4,740

3,030

3,250

4,480

5,050

4,900

5,070

4,S30

4,410

3,200

3,740

3,980

4,400

3,730

4,260

5,050

5,310

4,950

5,840

8,270

7,350

7,550

7,520

7,880

7,800

7,350

6,580

6,040

5,840

Apr.

5,700

C

c

C

,030

,310

,400

5,460

6,000

c

E

c

,730

,370

,350

5,310

5,220

E

c

c

,070

,400

,220

5,140

4,970 i

4

5

,090

,570

,260

5,290

5,240

4

4

4

4

4

4

4

4

4

Seoondfoot-days

65,458

66,972

63,794

1,037,816

104,479

128,410

. 166,210

151,050

109,120

70,596

63,397

61,610

60,923

1,117,019

,500

,120

,290

,370

,400

,750

;sso

,600

,210

May

4,670

3,020

3,410

4,410

3,470

3,100

4,070

3,960

4,130

4,160

3,9SO

3,640

3,810

3,690

3,560

3,690

3,310

3,480

3,250

3,290

3,170

3,330

2,980

3,030

3,050

2,830

3,480

2,850

3,310

3,880

3,110

Maximum

2,840

3,060

2,760

8,220

9,100

6,180

8,270

6,000

4', 670

3,030

2,770

2,590

2,790

9,100

June

2,990

3,030

3,010

2,320

2,810

2,870

2,820

2,210

2,300

1,630

1,760

2,580

2,540

2,800

2,100

1,800

1,030

986

2,290

2,540

2,650

2,690

2,800

2,600

1,270

2,250

2,240

2,530

2,550

2,600

- .

MiniwiB

724

892

924

662

759

1,770

3,030

4,120

2,830

986

848

710

906

710

July

2,460

1,190

2,520

2,190

2,480

2,560

2,030

938

1,280

2,420

2,43O

2,600

2,770

2,530

1,04O

1,300

2,410

2,510

2,410

2,570

2,510

1,120

848

2,400

2,360

2,280

2,440

2,290

1,210

921

2,380

Aug.

2,

2,

2,

2,

2,

2,

2,

460

590

540

230

850

710

230

420

530

2,430

2,320

1,

2,

240

714

370

2,490

2,320

2,

2,

1,

260

000

000

1,170

2,300

2,

2,

2,

400

500

410

2,170

' 1,450

2,

2,

2,

736

230

170

160

2,410

Mean

2,112

2,232

2,219

2,843

3,370

4,586

5,362

5,035

3,520

2,353

2,045

1,987

2,031

3,060

Sept.

2,410

1,960

957

1,140

2,400

2,480

2,380

1,740

1,330

1,460

2,740

2,420

2,520

2,480

1,930

1,100

906

2,360

2,450

2,790

2,400

2,240

1,480

1,030

2,080

2,650

2,530

2,480

2,510

1,570

-

Runoff in 

acre-feet

129,800

132,800

136,500

2,058,000

207,200

254,700

329,700

299,600

216,400

140,000

125,700

122,200

120,800

2,215,000
314 PIT RIVER BASIN

South Pork Pit River near Likely, Calif.

Location. Water-stage recorder, lat. 41°14' , long. 120°25', in NE& sec. 11, T. 39 N., R.

 13 E., 1.3 miles downstream from West Valley Creek and 3.5 miles east of Likely. Altitude of gage, about 4,580 feet (from topographic map).

Drainage area. 248 square miles.

Records available. October 1928 to September 1950.

Average discharge. 21 years (1929-50), 66.0-second-feet (since storage began in West 

valley ureeK iteservoir).

Extremes. Maximum discharge during year, 405 second-feet Feb. 5 (gage height, 3.92 feet); 

minimum, 17 second-feet during period of no gage-height record, but may have been less 

during period of ice effect.

1928-50: Maximum discharge, 1,060 second-feet Apr. 27, 1932 (gage height, 5.55 feet) 

from rating curve extended above 600 second-feet; minimum, 0.2 second-foot Feb. 3, 1941.

Remarks. Records good except those for periods of ice effect or no gage-height record,

 which are poor. Flow regulated by West Valley Creek Reservoir beginning in May 1937 

(total capacity, 17,700 acre-feet). Diversions above station for irrigation.

Revisions. W 861: Drainage area.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10 

\ 11 ' 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

ZB 

29 

30 

31

Oct.

32 

25

24

Hov.

28 

21

Dec.

(*) 

20

Jan.

20 

35

Feb.

25

40 

56

 55 

43 

44 

47 

42

36 

32 

33 

40 

40

36 

36 

35

Month

Octo 

Nove 

Dece

Ca

Janui 

Pebn 

Marc 

Apri

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949 

Etry

ter year 1949-50 .......................

Mar.

34 

35 

34 

37 

40

40 

39 

41 

39 

36

33 

37 

35 

37 

40

41 

62 

46 

98 

74

54 

73 

58 

52 

54

46 

44 

41 

39 

41 

44

Apr.

52 

60 

62 

56 

55

56 

52 

48 

57 

73

82 

102 

108 

122

119

124 

111 

90 

80 

99

128 

166 

158 

133 

134

124 

140 

121 

110 

113

Secondfoot-days

753 

735 

620

28,319

860 

939 

1,426 

2,925 

4,197 

2,973 

1,045 

2,297 

998

19,768

May

119 

116 

119 

116 

113

98 

83 

75 

71 

82

86 

100 

137 

156 

154

168 

186 

186 

182 

182

182 

186 

184 

176 

158

148 

140 

135 

128 

118 

113

Maximum

_

534

56 

98 

166 

186 

213 

45 

113 

71

213

June

110 

102 

90 

86 

89

104 

133 

122 

106 

90

87 

111 

110 

92 

108

124 

94 

82 

75 

69

77 

102 

106 

213 

150

96 

80 

67 

57 

41

July

Minimum

-

-

33

48 

71 

41 

25 

56 

19

-

34 

35 

38 

38 

36

33 

30 

30 

29 

28

29 

27 

25 

30 

33

29 

28 

30 

30 

34

37 

36 

36 

36 

38

39 

39 

38 

38 

38 

45

Aug.

64 

65 

67 

67 

77

69 

67 

67 

64 

59

56 

57 

58 

57 

62

62 

73 

94 

92 

89

105 

113 

94 

96 

87

75 

73 

73 

72 

71 

72

Mean

24.3 

24.5 

20

77.6

27.7 

33.5 

46.0 

97.5 

135 

99.1 

33.7 

74.1 

33.3

54.2

Sept.

71 

60 

46 

46 

46

47 

48 

55 

40 

33

23 

26 

30 

31 

31

35 

35 

34 

27 

25

23 

22 

23 

22

19

19 

20 

21 

27 

23

Runoff in 

acre-feet

1,490 

1,460 

1,330

56,160

1,710 

1,860 

2,830 

5,800 

8,32O 

S,900 

2,070 

4,560 

1,980

39,210

 Winter discharge measurement made on"this day.

Note. No gage-height record Oct. 3 to Dec. 13; discharge computed on basis of weather records, 

1 discharge measurement, and records for Pit River near Canby. Stage-discharge relation affected by 

ice Dec. 14 to Feb. 13.
PIT RIVER BASIN 315

Hat Creek near Hat Creek, Calif.

Location. Water-stage recorder, lat. 40°41', long. 121°25', in SE£ sec. 28, T. 33 N., R. 

b £., 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 1950. July 1926 to April 1928 at site 0.5 

mile upstream.

Average discharge.--23 years (1926-29, 1930-50), 120 second-feet.

Extremes. Maximum discharge during year, 224 second-feet June 1 (gage height, 2.87 feet); 

minimum, 87 second-feet Dec. 26, 28.

1926-50: Maximum discharge, 2,500 second-feet Dec. 11, 1937 (gage height, 7.75 feet, 

in gage well, affected by draw-down), by slope-area method; minimum, 67 second-feet 

Sept. 7, 1934.

Remarks. Records excellent except those for period of no gage-height record, which are 

good. Small diversions above station for irrigation.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

2.2 90 2.6 159 

2.3 104 2.7 182 

2.4 12O 2. 8 206 

2.5 13S

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

101 

101 

101 

100 

100

100 

100 

100 

100 

100

98 

97 

97 

97 

97

96 

96 

94 

93 

94

96 

98 

98 

98 

98

98 

98 

98 

100 

100 

98

Nov.

97 

97 

97 

97 

10O.

101 

103 

104 

104 

100

101 

104 

104 

104 

104

104 

104 

104 

104 

104

104 

104 

104 

106 

104

104 

106 

109 

107 

106

Dec.

106 

al06 

alOS 

aios 

alOS

a!04 

a!04 

a!03 

a!03 

a!02

a!02 

al02 

alOl 

101 

103

101 

101 

100 

98 

97

96 

94 

96 

96 

96

94 

94 

94 

96 

96 

94

Jan.

94 

94 

93 

93 

93

93 

93 

94 

93 

93

93 

93 

93 

93 

91

94 

98 

98 

100 

101

107 

117 

115 

103 

96

94 

94 

97 

96 

93 

93

Feb.

93 

93 

93 

97 

9S

100 

98 

97 

97 

96

97 

97 

96 

97 

98

100 

100 

100 

100 

100

100 

98 

98 

101 

101

103 

104 

103

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

103 

103 

103 

103 

104

103 

101 

103 

101 

100

98 

98 

100 

100 

100

100 

110 

106 

114 

110

109 

114 

110 

110 

109

109 

107 

107 

107 

107 

109

Apr.

109 

112 

114 

112 

114

118 

115 

114 

114 

112

112 

114 

117 

114 

^112

114 

115 

117 

120 

125

133 

136 

136 

133 

134

136 

140 

140 

136 

134

Secondfoot -day s

3,042 

3,091 

3,095

41,628

2,992 

2,757 

3,258 

3,652 

4,886 

4,992 

3,800 

3,415 

3,267

42,247

May136 

131 

127 

122 

120

120 

118 

117 

117 

117

122 

127 

140 

151 

159

166 

175 

175 

168 

170

177 

189 

194 

189 

192

192 

194 

194 

187 

196 

204

Maximum

101 

109 

106

194

117 

104 

114 

140 

204 

204 

142 

115 

115

204

June

204 

199 

189 

187 

189

189 

168 

161 

164 

159

159 

153 

153 

170 

166

161 

159 

159 

164 

170

175 

166 

166 

164 

153

148 

151 

151 

151 

144

July

142 

140 

140 

13E 

134

133 

129 

127

12^ 

129

129 

127 

125 

125 

124

122 

122 

124 

122 

117

115 

114 

112 

112 

112

110 

109 

107 

107 

112 

114

Aug.

114 

114 

114 

114 

112

112 

115 

115 

109 

107

107 

109 

109 

107 

106

106 

104 

106 

110 

112

112 

112 

112 

112 

113

114 

114 

112 

106 

104 

103

Minimum Mean

93 98.1 

97 103 

94 99.8

93 114

91 96.5 

93 98.5 

98 105 

109 122 

117 158 

144 166 

107 123 

103 110 

101 109

91 116

Peak discharge (base, 170 sec. -ft. ) . May 17 (2 a.m.) 187 sec. -ft.; June 1 (1 a.m.) 224

Sept.

103 

103 

103 

103 

101

101 

107 

114 

112 

112

112 

112 

112 

112 

112

114 

115 

115 

114 

112

109 

104 

103 

107 

107

107 

109 

110 

110 

112

Runoff In 

acre-feet

6,030 

6,130 

6,140

82,580

5,930 

5,470 

6,460 

7,240 

9,690 

9,900 

7,540 

6,770 

6,480

83,780

sec . -f t . ;

June 15 (2 p.m.) 187 sec.-ft.

a No gage-height record; discharge interpolated.
316 PIT RIVER BASIN

Squaw Creek above Shasta Lake, Calif. 

(Formerly published as Squaw Creek above Shasta Reservoir)

Location.--Water-stage recorder, lat. 40°S1', long. 122°07', in SW£ sec. 29, T. 35 N., R. 

 S~¥77 0.5 mile upstream from Salt Creek, about 2 miles upstream from Shasta Lake, 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 1950. Prior to October 1949, published as 

squaw creek above Shasta Reservoir.

Extremes. Maximum discharge during year, 3,690 second-feet Jan. 23 (gage height, 13.72 

reet); minimum, 10 second-feet Jan. 3.

1944-50: Maximum discharge, 6,150 second-feet Dec. 27, 1945 (gage height, 16.00 

feet); minimum, 10 second-feet Sept. 22-25, 1949, Jan. 3, 1950.

Remarks. Records good. No diversion.

Rating tables, water year 1949-50 (gage height, 

and discharge, In second-feet)

In feet,

Oct. 1 to Jan. 23 Jan. 24 to Sept. 3O

5.8

5.9 

6.1 

6.3

7.5 

7.9 

8.3

103

140

206

290

9.5

10.0

10.5

11.0

720

950

1,210

1,510

5.8

5.9

6.0

6.1

6.3 

6.3

34

53

76

103

12.2 2,380 Hote. Same as preceding table above 7.2 feet.

Discharge, In second-feet, water year October 1949 to Septeaber 1950

Day

1 

2 

3 

4

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

12 

12 

11 

11 

12

12 

12 

12 

12 

12

12 

12 

12 

11 

12

12 

12 

12 

12 

13

13 

13 

13 

13 

13

13 

13 

13 

13 

12 

12

Nov.

12 

12 

12 

12 

12

12 

13 

24 

129 

74

49 

34 

26 

22 

21

19 

19 

18 

18 

17

17 

17 

17 16' 

16

16 

16 

17ir

16

Dec.

16 

16 

16 

16 

19

IS 

17 

17 

16 

16

15 

15 

15 

15 

17

28 

77 

87 70' 

42

32 

28 

25 

24 

22

21 

20 

20 

19 

19 

19

Jan.

19 

19 

15 

18 

16

17 

19 

16 

23 

57

68 

44 

33 

29 

33

31 

108 

947 

545 

366

848 

1,040 

2,370 

859 

448

324 

246 

199 

166 

146 

130

Feb.

117 

1O6 

105 

142 

693

1,770 

814 

569 

437 

387

348 

324 

312 

314 

372

4S5 

573 

545 

541 

529

473 

434 

413 

430 

485

497 

465 

430

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wa

raber. ...........---- -------------

lendar year 1949

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

St......................................

ter year 1949-50 .......................

Peak discharge (base, 2.000 sec. -ft.). Ja

sec.-ft»

Mar.

396 

369 

356 

340 

381

361 

307 

279 

275 

259

238 

216 

201 

188 

178

171 

232 

240 

434 

462

413 

1,100 

842 

855 

796

716 

837 

720 

598 

517 

482

Apr.

4 2O 

381 

345 

314 

295

348 

353 

517 

573 

493

437 

396 

363 

330 

302

279 

264 

25O 

236 

224

214 

204 

192 

181 

173

165 

158 

149 

142 

137

Secondf cot-days

379 

720 

797

42,009

9,199 

13,110 

13,739 

8,835 

3,259 

1,471 

725 

453 

419

53,106

May

178 

171 

165 

150 

143

137 

131 

124 

120 

117

113 

110 

106 

104 

102

99 

97 

94 

90 

88

85 

83 

82 

79 

77

74 

72 

70 

68 

66 

64

HaXlHUB

13 

129 

87

1,870

2,370 

1,770 

1,100 

573 

178 

62 

32 

18 

26

2,370

June

62 

59 

58 

57 

56

56 

56 

57 

56 

56

59 

59 

58 

53 

51

50 

50 

47 

45 

44

42 

41 

40 

40 

40

39 

38 

36 

35 

33

July

32 

31 

30 

29 

28

28 

27 

26 

26 

26

26 

26 

£5 

24 

24

22 

22 

22 

22 

22

20 

20 

20 

20 

19

18 

18 

18 

18 

18 

18

Minimum

11 

12 

15

10

15 

105 

171 

137 

64 

33 

18 

12 

12

11

Aug.

17 

17 

17 

17 

18

18 

17 

16 

16 

16

16 

16 

15 

15 

14

14 

14 

14 

14 

13

13 

13 , 

13 

13 

13

13 

13 

12 

12 

12 

12

Mean

12.2 

24.0 

25.7

115

297 

468 

443 

294 

105 

49.0 

23.4 

14.6 

14.0

145

Sept.

12 

12 

12 

12 

12

12 

12 

13 

14 

14

14 

13 

12 

13 12 '

13 

16 

26 

20 

18

15

' L4 

14 

13

14 

14 

13 

13 

13

Runoff in 

acre-feet

752 

1,430 

1,580

83,320

18,250 

26,000 

27,250 

17,520 

6,460 

2,920 

1,440 

899 

831

105,300

n. 23 (6 a.m.) 3,690 sec. -ft.; Feb. 6 (3:30 a.m.) 2,760
PIT RIVER BASIN 317

McCloud River near McCloud, Calif.

Location. Water-stage recorder, lat. 41°11', long. 122°04', in NE^ sec. 34, T. 39 N., R. 

Z~~W77 0.5 mile downstream from Angel Creek and 6 miles southeast of McCloud. Altitude 

of gage, about 2,750 feet (from topographic map).

Drainage area. 382 square miles.

Records available. April 1931 to September 1950.

Average discharge. 19 years, 830 second-feet.

Extremes. Maximum discharge during year, 1,050 second-feet Apr. 22 (gage height, 1.74 

-reet); minimum, 686 second-feet probably Dec. 21, Jan. 23.

1931-50: 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 Av/d 

studies; minimum, 524 second-feet Nov. 23, 24, 1932.

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

good. Two small diversions above station for irrigation.

Revisions. W 1091: Drainage area.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.0 670 

, 1.2 754 

1.4 853 

1.6 965 

1.8 1 , 080

Discharge, in second-feet, water year October 1949 to September 1950

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.

710 

710 

710 

710 

710

710 

710 

710 

710 

710

710 

710 

710 

710 

710

710 

710 

710 

710 

710

710 

710 

710 

710 

710

710 

710 

710 

706 

706 

706

Nov.

706 

706 

706 

706 

706

706 

710 

710 

728 

719

714 

710 

710 

710 

710

710 

706 

706 

706 

706

706 

706 

702 

702 

702

702 

702 

702 

702 

702

Dec.

702 

698 

698 

698 

698

698 

698 

698 

698 

694

694 

694 

694 

698 

698

698 

702 

702 

694 

690

690 

700 

710 

710 

700

700 

700 

700 

700 

700 

700

Jan.

700 

700 

700 

700 

700

700 

700 

700 

710 

710

710 

700 

700 

700 

700

700 

710 

710 

710 

710

710 

710 

850 

820 

800

792 

778 

754 

736 

736 

728

Feb.

719 

723 

719 

719 

750

833 

817 

797 

773 

759

745 

741 

732 

728 

723

732 

736 

736 

736 

732

728 

728 

728 

728 

741

754 

759 

764

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Mace 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

raber. ...................................

lender year 1949

ter year 1949-50 .......................

Mar.

764 

764 

764 

773 

817

838 

807 

792 

783 

768

759 

750 

745 

741 

741

736 

754 

764 

764 

764

773 

919 

948 

896 

858

828 

812 

797 

792 

797 

812

Apr.

1, 

1, 

1,

Secondfoot -days

21,998 

21,219 

21,654

283,675

22,484 

20,880 

24,620 

1^57077 

29,500 

24,311 

22,761 

22,079 

21,052

280,635

Peak discharge (base. 1,000 sec. -ft.). Apr. 22 (4 a.m

838 

864 

875 

869 

875

959 

983 

965 

913 

896

885 

885 

902 

891 

885

896 

913 

936 

953 

983

030 

040 

020 

995 

983

977 

977 

977 

959 

953

Ma?

995 

1,010 

965 

930

919

907 

S91 

885 

875 

880

891 

913 

942 

977 

989

995 

1,010 

995 

977 

965

977 

989 

995 

995 

977

965 

959 

953 

936 

924 

919

Maximum

710 

728 

710

1,150

850 

833 

948 

1,040 

1,010 

913 

759 

723 

710

1,040

June

913 

896 

885 

875 

869

864 

838 

822 

817 

817

817 

812 

807 

802 

797

807 

797 

78S 

788 

783

783 

783 

778 

773 

773

773 

768 

788 

759 

759

July

759 

754 

754 

750 

750

750 

745 

741 

741 

741

736 

736 

736 

732 

732

732 

732 

728 

726 

728

728 

728 

728 

723 

723

723 

723 

723 

719 

719 

719

Aug.

723 

719 

723 

719 

719

714 

714 

714 

714 

714

714 

714 

714 

714 

714

714 

710 

710 

710 

714

710 

710 

710 

708 

706

706 

706 

706 

706 

706 

706

Minimum Mean

706 710 

702 707 

690 699

690 777

700 725 

719 746 

736 794 

838 936 

875 952 

759 810 

719 734 

706 712 

694 702

690 769

.) 1,050 sec. -ft.

Sept.

706 

706 

706 

706 

706

706 

702. 

710 

706 

706

710 

706 

706 

702 

702

702 

702 

702 

698 

698

698 

.698 

698 

698 

698

698 

694 

694 

694 

694.

Runoff In 

acre-feet

43,630 

42,090 

42,950

562,700

44,600 

41,410 

48,830 

55,690 sa>5io

48,220 

45,150 

43,790 

41,760

556,600

Note. Ho gage-height record Dee. 21 to Jan. 25, Sept. 16-20; discharge computed on basis of reeorded range In stage and records for station above Shasta Lake.
318 PIT RIVER BASIN

McCloud River above Shasta Lake, Calif. 

(Formerly published as McCloud River above Shasta Reservoir)

Location.--Water-stage recorder, lat. 40°57', long. 122°13', in NW£ sec. 28, T. 36 N., R. 

 3' W., just upstream from Shasta Lake, 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 (]evels 

by Bureau of Reclamation).

Drainage area. 606 square miles.

Records available.--October 1945 to September 1950. Prior to October 1949, published as 

Mccioud Kiver above Shasta Reservoir.

Extremes. Maximum discharge during year, 4,410 second-feet Feb. 6 (gage height, 14.66 

reet); minimum, 820 second-feet Jan. 3.

1945-50: Maximum discharge, 14,100 second-feet Jan. 7, 1948 (gage height, 20.25 

feet), from rating curve extended above 6,000 second-feet by logarithmic plotting; minimum, that of Jan. 3, 1950.

Remarks. Records excellent. Some very small diversions above station for domestic use.

Rating table, water year 1949-50, (gage height, in feet, 

and discharge, in second-feet)

10.7 780 12.0 1,660 

11.0 935 13.0 2,540 

11.4 1,190 14.1 3,720

Discharge, in second-feet, water year October 1949 to September 1950 (

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 

39 

30 

31

Oct.

860 

855 

855 

855 

860

860 

360 

860 

860 

870

865 

860 

855 

855 

855

855 

855 

855 

855 

855

855 

855 

855 

8S5 

855

850 

850 

850 

850 

845 

845

Nov.

845 

845 

845 

845 

845

845 

850 

675 

1,100 

962

918 

891 

870 

865 

865

860 

860 

860 

860 

855

855 

855 

855 

855 

855

855 

855 

855 

855 

850

Dec.

845 

845 

845 

845 

865

850 

855 

850 

850 

845

840 

840 

840 

845 

855 .

865 

935 

946 

902 

865

855 

850 

850 

850 

845

840 

840 

840 

840 

845 

840

Jan.

840 

840 

' 825 

835 

830

830 

840 

865 

865 

930

875 

850 

870 

850 

845

860 

1,040 

1,860 

1,600 

1,470

2,140 

2,510 

3,670 

2,490 

1,780

1,480 

1,360 

1,230 

1,150 

1,100 

1,050

Feb.

1,020 

1,000 

1,020 

1,080 

1,870

3,670 

2,380 

1,900 

1,660 

1,560

1,450 

1,390 

1,360 

1,410 

1,390

1,650 

1,900 

1,830 

1,780 

1,740

1,650 

1,600 

1,560 

1,600 

1,760

1,900 

1,900 

1,860

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Ma v

June 

July 

Augu 

Sept

Wa

lendar year 1949 

&i*y

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

ter year 1949-50 .......................

Mar.

1,840 

1,800 

1,800 

1,830 

2,060

2,100 

1,880 

1,740 

1,660 

1,580

1,500 

1/430 

1,380 

1,340 

1,320

1,300 

1,530 

1,580 

1,860 

1,890

1,860 

2,910 

2,730 

2,490 

2,290

2,110 

2,040 

1,950 

1,860 

1,810 

1,830

Apr.

1,870 

1,950 

1,930 

1,850 

1,830

3,320 

3,450 

2,840 

2,680 

3,430

3,390 

2,220 

2,300 

2,090 

2,000

1,960 

1,970 

1,980 

1,980 

3,030

3,070 

2,070 

2,000 

1,910 

1,840

1,800 

1,780 

1,760 

1,700 

1,660

Secondfoot -days

26,535 

26,106 

26,523

453,176

39,580 

46,890 

57,290 

61,350 

46,590 

32,238 

27,944 

26,400 

25,160

443,596

May

1,790 

1,790 

1,700 

1,600 

1,560

1,530 

1,490 

1,450 

1,430 

1,420

1,440 

1,480 

1,520 

1,560 

1,570

1,580 

1,590 

1,560 

1,500 

1,480

1,480 

1,500 

1,490 

1,480 

1,450

1,430 

1,400 

1,370 

1,340 

1,320 

1,310

Maximum

870 

1,100 

946

6,960

3,670 

3,670 

3,910 

3,840 

1,790 

1,380 

952 

870 

875

3,670

June

1,280 

1,250 

1,220 

1,200 

1,180

1,180 

1,150 

1,130 

1,110 

1,110

1,110 

1,100 

1,080 

1,080 

1,060

1,080 

1,070 

1,040 

1,020 

1,010

1,000 

996 

990 

990 

984

974 

968 

963 

962 

953

July

952 

946 

940 

935 

935

935 

924 

924 

924 

924

913 

908 

908 

908 

902

896 

896 

891 

886 

886

886 

880 

880 

875 

875

875 

875 

870 

865 

865 

865

Minimum

845 

845 

840

840

825 

1,000 

1,300 

1,660 

1,310 

952 

865 

835 

830

825

Aug.

865 

860 

865 

870 

870

865 

860 

855 

855 

855

855 

855 

855 

855 

850

850 

850 

850 

850 

850

850 

850 

845 

645 

845

840 

840 

840 

835 

835 

835

Mean

856 

870 

856

1,243

1,377 

1,675 

1,848 

2,045 

1,503 

1,075 

901 

853 

839

1,313

Sept.

830 

830 

830 

830 

830

830 

830 

845 

855 

850

845 

840 

835 

835 

830

835 

860 

875 

860 

845

840 

840 

835 

835 

830

835 

835 

830 

830 

830

Runoff in 

acre-feet

53,610 

51,780 

52,610

898,900

78,510 

93,000 

113,600 

131,700 

92,410 

63,940 

55,430 

53,360 

49,900

877,800

Peak discharge: (base. 3.600 see.-ft.). Jan.- 25 (8 a.m.) 4,350 sec.-ft.; Feb. 

ec.-re.; Mar. zz (9 a.m.) 3,020 sec.-rt.; Apr. 8 (10 p.m.) 3,880 sec.-ft.

6 (3:30 a.m.) 4,410
CLEAR CREEK BASIN 319

Clear Creek near Igo, Calif.

Location. Water-stage recorder, lat. 40°30'50", long. 122°31'20", in NE^NE^ sec. 27, T.

 31 N., R. 6 W., at highway bridge on Redding-Igo road, 1.0 mile northeast of Igo, 

8 miles southwest of Redding, and 9 miles upstream from mouth. Altitude of gage, about 

700 feet (from topographic map).

Drainage area.--231 square miles.

Records available. October 1940 to September 1950.

Average discharge. 10 years, 359 second-feet.

Extremes. Maximum discharge during year, 1,810 second-feet Feb. 6 (gage height, 5.39

 feet): minimum, 8.6 second-feet Sept. 4, 6, 7.

1940-50: Maximum discharge, 19,200 second-feet Mar. 1, 1941 (gage height, 12.2 

feet), from rating curve extended above 12,000 second-feet on basis of velocity-area . 

studies; minimum,-that of Sept. 4, 6, 7, 1950. Maximum stage known, about 13 feet in February 1940, from information by local resiRemarks. Records good except those for periods of ice effect, which are fair. Small

 diversions above station.

Rating tables, water year 1949-50, except period of loe effect 

(gage height, in feet, and discharge, In second-feet)

Oct. 1 to Feb. 5. Feb. 6 to Sept. 30

2.2 19 3.2 236 1.95 9.O 2.6 76 

2.3 23 3.5 360 2.0 11 2.8 117 

2.4 40 3.S 515 2.1 16 3.0 172 

2.6 72 4.2 780 2.2 23 3.2 237 

2.3 114 4.6 1,060 2.4 45 3.5 360 

3.0 170 5.1 1,500 note.-same as preceding 

table above 3.5 feet. 

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

24 

22 

20 

19 

19

19 

23 

24 

26 

28

30 

29 

26 

24 

24

24 

23 

23 

26 

28

29 

29 

29 

29 

30

29 

28 

29 

30 

29 

28

Nov.

2S 

28 

28 

23 

23

29 

30 

34 

121 

109

69 

55 

48 

44 

42

40 

40 

39 

39 

39

38 

38 

38 

38 

38

33 

39 

40 

40 

40

Dec.

39 

39 

38 

38 

42

42 

43 

48 

43 

40

40 

40 

40" 

40 

46

50 

91 

70 

60 

.*54

59 

48 

 48 

49 

48

46 

46 

44 

44 

46 

46

Jan.

44 

43 

b43 

*b42 

b43

b44 

43 

54 

62 

240

109 

69 

70 

78 

69

78 

349 

668 

504 

440

931 

794 

948 

696 

410

286 

240 

209 

180 

161 

137

Feb.

127 

127 

132 

333 

923

1,470 

829 

563 

450 

466

430 

335 

370 

380 

435

533 

601 

533 

493 

455

410 

370 

360 

*375 

425

450 

460 

440

Honth

Octo 

Hove 

Dece

ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

wa

nber. ...................................

lender year 1949

t»r year 1949-50 .......................

Mar.

415 

390 

370 

370 

385

370 

324 

290 

270 

252

230 

213 

203 

194 

183

191 

294 

351 

582 

569

488 

539 

653 

738 

614

539 

493 

450 

425 

405 

405

Apr.

Secondfoot -days

800 

1,305 

1,457

109,443

8,088 

13,325 

12,200 

12,590 

4,506 

1,995 

753 

444 

510.2

57,973.2

410 

410 

395 

356 

351

488 

595 

864 

752 

654

601 

563 

551 

493 

445

420 

400 

330 

365 

351

342 

323 

307 

290 

270

263 

252 

241 

230 

223

May

244 

241 

227 

210 

197

133 

181 

178 

169 

166

163 

153 

155 

149 

146

140 

135 

130 

127 

122

117 

113 

IDS 

106 

106

97 

91 

89 

37 

86 

80

Maximum

30 

121 

91

6,150

948 

1,470 

738 

864 

244 

93 

40 

19 

30

1,470

June

76 

73 

69 

63 

63

66 

71 

74 

74 

74

87 

93 

84 

82 

30

80 

82 

74 

66 

59

56 

52 

49 

51 

52

52 

51 

43 

43 

41

July

40 

38 

35 

33 

33

32 

30 

29 

27 

29

29 

27 

26 

24 

23

22

22 

20 

20 

20

20 

20 

19 

20 

17

17 

17 

16 

16 

16 

16

Aug.

Minimum Mean

19 25.8 

28 43.5 

38 47.0

16 300

42 261 

127 476 

188 394 

223 420 

80 145 

41 66.5 

16 24.3 

11 14.3 

9.0 17.0

9.0 159

16 

16 

16 

16 

19

19 

19 

18 

17 

17

16 

16 

15 

14 

14

14 

14 

14 

13 

12

12 

12 

12 

11 

12

12 

12 

12 

12 

11 

11

Sept.

11 

9.3 

9.4 

9.0 

9.0

9.0 

9.0 

11 

14 

15

17 

16 

16 

17 

16

16 

26 

30 

29 

27

22 

22

20 

19 

19

19 

19 

18 

18 

18

Runoff In 

aore-f»et

1,590 

2,590 

2,890

217,100

16,040 

28,430 

24,200 

24,970 

8,940 

3,960 

1,490 

881 

1,010

115,000

Winter discharge measurement made on this day 

b Stage-discharge relation affected by Ice.
320 COW CREEK BASIH

Cow Creek near Millville, Calif.

Location. Water-stage recorder, lat. 40°30', long. 122°14', in M£ sec. 32 T. 31 N.,

 H. a tf., 3 miles downstream from Little Cow Creek and 4.5 miles southwest of Millville. 

Altitude of gage, about 400 feet (from topographic map).

Records available.--October 1949 to September 1950.

Extremes. Maximum discharge during year, 22,500 second-feet Feb. 6 (gage height, 16.48

 reet); minimum, 6.0 second-feet Sept. 5.

Remarks. Records good, numerous small diversions above station for irrigation.-

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Feb. -6 Feb. 7 to Sept. 30

2.6 31 4.0 365 7.8 3,280 2.2 9 3.2 133 

2.7 40 4.4 550 8.6 4,320 2.4 24 3.4 177 

2.9 61 4.8' 750 9.4 5,520 2.6 44 3.6 230 

3.1 87 5.2 970 10.2 6,860 2.8 68 3.8 290 

3.3 120 5.6 1,210 11.0 8,300 3.O 97 4.0 365 

3.5 168 6.2 1,640 12.0 10,300 , _ ore0edinK 3*7 O*Q i n > Ann -\ > R m A/VJ note. oajas as preceuj.iig .7 238 7.0 2,400 12.5 11,40O tabTe~abpve 4.0 feet.

Day

'l 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

36

46 

44 

43 

41

Nov.

42 

46 

45 

48 

47

46 

50 

59 

163 

334

215 

140 

120 

116 

100

99 

94 

94 

88 

88

87 

87 

88 

88 

88

88 

88 

90 

96 

93

Dec.

92 

92 

92 

92 

102

109 

106 

109 

100 

96

94 

90 

90 

94 

98

104 

181 

258 

234 

138

115 

107 

104 

100 

94

93 

93 

93 

93 

94 

94

Jan.

93 

96 

87 

87 

81

84 

100 

94 

115 

715

517 

254 

223 

689 

286

219 

7,260 

5,500 

3,090 

1,940

4,180 

3,130 

4,390 

1,640 

850

595 

515 

491 

482 

468 

414

Feb.

357 

329 

365 

9,250 

10,900

11,300 

2,920 

1,600 

1,170 

1,550

1,280 

904 

810 

740 

766

882 

844 

725 

665 

635

575 

540 

500 

496 

510

500 

,491 

478

Month

Octo 

Hove 

Decs

Ca

Janui 

Febn 

Marc 

Aprl 

Itav

June 

July 

Augu 

Sept

Ha

Lendar year

ber year 1949-50 .......................

Mar.

455 

442 

428 

424 

500

545 

450 

414 

473 

635

482 

396 

361 

345 

318

308 

814 

709 

4,300 

1,580

1,130 

2,300 

1,850 

4,760 

2,750

1,82O 

1,760 

1,190 

982 

860 

778

Apr.

740 

725 

695 

650 

630

1,060 

915 

888 

876 

700

650 

615 

852 

725 

645

615 

600 

600 

615 

635

655 

710 

680 

635 

600

590. 

570 

555 

520 

500

Secondfoot -day 8

1,146 

2/927 

3,451

-

38,685 

52,082 

34,559 

20, 446 

13,888 

5,098 

1,138 

606 

810

174,836

Peak discharge (base, 3,300 sec. -ft.}. Jan. 17 (4:30

May

6OO 

655 

730 

580 

505

46O 

428 

406 

378 

365

365 

378 

396 

437 

468

478 

491 

482 

450 

437

442 

455 

464 

468 

442

406 

392 

361 

333 

325 

311

Maximum

334 

258

-

7,260 

11,300 

4,760 

1,060 

730 

318 

65 

30 

59

11,300

June

297 

272 

263 

248 

227

216 

219 

197 

187 

182

200 

230 

197 

182 

175

318 

168 

150 

135 

122

109 

100 

94 

97 

97

94 

86 

62 

79

75

July

65 

56 

59 

59 

59

50 

50 

45 

45 38 '

36 

41 

41 

35 

33

34 

26 

25 

31 

31

31 

30 

30 

23 

24

24 

25 

25 

26 

22 

19

Aug.

22 

26 

18 

18 

24

30 

30 

22 

19 

21

24 

22 

22 

18 

15

18 

18 

18 

16 

22

24 

18 

16 

16 

14

16 

18 

17 

15 

14 

15

Minimum Mean

37.0 

42 97,6 

90 111

-

81 1,248 

329 1,860 

308 1,115 

500 682 

311 448 

75 170 

19 36.7 

14 19.5 

11 27.0

11 479

Sept.

12 

12 

14 

12 

11

14 

14 

24 

28 

26

29 

27 

25 

21 

15

27 

32 

48 

59 

50

44

37 

40 

37 

35

28 

28 

19 

18 

24

Runoff in 

acre-feet

2,270 

5,810 

6,840

-

76,730 

103,300 

68,550 

40,550 

27,550. 

10,110 

2,260 

1,200 

1,610

346,800

p.m.) 16,600 sec. -ft.; Jan. 23 (12:30 p.m.)

5,900 sec.-ft.7 Feb. 6 (6:5O a.m.; 22,500 »ec.-ft.; Mar. 19 (11:30 a.m.) 7,620 sec.-ft.j Bar. 24 

(3 a.m.) 6,500 sec.-ft.

Note. No gage-height record Oct. 1-27; discharge computed on basis of observed range in stage during construction and records for Clear Creek near Igo.
COTTONWOOD CREEK BASIN 321

Cottonwood Creek near Cottonwood, Calif.

Location.--Water-stage recorder, lat. 40°24', long. 122°13 I , in NE& sec. 7, T. 29 N., R. 3 

W., 2 miles east of Cottonwood and 2 miles upstream from mouth. Altitude of gage, 

about 370 feet (from river-profile map).

Drainage area. 945 square miles.

Records available.--October 1940 to September 1950.

Average discharge.--10 years, 729 second-feet.

Extremes.--Maximum discharge during year, 10,700 second-feet Feb. 6 (gage height, 8.63 

reet), from rating curve extended above 5,000 second-feet; minimum, 28 second-feet 

Dec. 24.

1940-50: Maximum discharge, 52,300 second-feet Mar. 1, 1941 (gage height, 15.4 feet), 

from rating curve extended above 30,000 second-feet; minimum, 15 second-feet on several 

days during September 1945.

Remarks. Records good except those below 300 second-feet, which are fair. Small diversions above stations.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

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.

43 

42 

44 

46 

44

842 

a 40 

a 40 

a 40 

38

42 

44 

41 

54 

51

53 

53 

51 

54 

53

49 

52 

49 

55 65

59 

63 

73 

66 

60 

69

Nov.

78 

60 

57 

46 

41

41 

39 

39 

52 

92

118 

94 

76 

70 

65

62 

62 

59 

57 

55

53 

53 

54 

53 

52

53 

53 

53 

53 

a50

Dec.

> a45

42 

43

43 

43 

43 

a46 

49

51 

54 

59 

83 

87

874 

62 

62 

54 

53

66 

62 

55 

54 

54 

57

Jan.

57 

55 

52 

47 

44

45 

54 

53 

69 

110

194 

139 

115 

127 

118

124 

190 

708 

1,470 

1,450

1,650 

' 2,300 

a2,200 

82,450 

al.500

81,100 

aSOO 

8700 

8600 

8480 

385

Feb.

325 

306 

316 

2,610 

3,470

6,910 

2,780 

1,520 

1,200 

1,530

1,420 

1,010 

884 

828 

844

924 

1,060 

956 

852 

798

730 

678 

663 

678 

798

844 

844 

844

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

mber. ........ ..-------.. ............

lendar year 194£

St......................................

ter year 1949-50 .......................

Mar.

79O 

738 

685 

678 

685

738 

649 

586 

530 

491

453 

423 

395 

385 

364

359 

555 

1,190 

2,060 

2,500

1,610 

1,410 

1,330 

2,280 

1,570

1,220 

1,070 

916 

828 

775 

775

Apr.

Secondfoot-days

1,575 

1,790 

1,656

192,719

19,386 

36,622 

29,038 

17,820 

9,633 

4,584 

1,866 

1,686 

2,151

127,807

805 

82S 

805 

752 

621

738 

730 

708 

656 

607

579 

572 

642 

635 

586

544 

537 

544 

558 

579

628 

621 

565 

510 

453

435 

423 

405 

385 

369

May

369 

395 

400 

390 

359

344 

340 

330 

320

311

297 

297 

297 

306 

320

330 

325 

316 

302 

288

280 

280 

284 

288 

284

284 

284 

275 

258 

244 

236

Maximum

73 

118 

87

15,000

2,450 

6,910 

2,500 

828 

400 

231 

78 

67 

108

6,910

June

231 

227 

214 

210 

194

171 

156 

156 

153 

156

164 

171 

178 

164 

153

156 

164 

167 

164 

149

146 

133 

115 

110 

110

105 

103 

97 

87 

80

July

78 

78 

75 

75 

75

75 

70 

63 

59 

55

~~ 53 

53 

52 

52 

51

52 

55 

52 

58 

55

59 

66 

62 

65 

55

58 

55 

52 

52 

52 

54

Mlnlnun

38 

39 

42

36

44 

306 

359 

369 

236 

80 

51 

43 

52

38

Aug.

Mean

50.8 

59.7 

53.4

528

625 

1,308 

937 

594 

311 153 ' 

60.2 

54.4 

71.7

350

53 

51 

53 

66 

67

59 

58 

65 

57 

57

58 

53 

55 

51 

46

51 

66 

59 

58 

55

53 

49 

44 

43 

48

49 

48 

49 

51 

55 

59

Sept.

66 

63 

54 

53 

52

52 

53 

53 

52 

65

72 

76 

80 

75 

70

65 

62 

69 

82 

78

75 

80 

88 

101 

108

105 

85 

62 

75 

80

Runoff In 

acre-feet

3,120 

3,550 

3,280

382,200

38,450 

72,640 

57,600 

35,350 

19,110 

9,090 

3,700 

3,340 

4,270

253,500

Peak discharge (base, 6,900 sec. -ft.}. Feb. 6 (6 a.m.) 10.700 sec. -ft.

No gage-neigftt ear Creek near Igo.
322 BATTLE CREEK BASIN

Battle Creek near Cottonwood, Calif.

Location.--Water-stage recorder, lat. 40°24', long. 122°08', in NW£ sec. 6, T. 29 N., R. 

 y W., 3"miles upstream from mouth and 9 miles east of Cottonwood. Datum of gage is 

421.47 feet above mean sea level (levels by Bureau of Reclamation).

Drainage area. 36S square miles.

Records available.--October 1940 to September 1950.

Average discharge. 10 years, 456 second-feet.

Extremes. Maximum discharge during year, 8,630 second-feet Feb. 6 (gage height, 9.52 

reet); minimum not determined; minimum gage height, 1.72 feet Sept. 15.

1940-50: Maximum discharge, 12,800 second-feet Feb. 6, 1942 (gage height, 11.85 

feet), from rating curve extended above 10,000 second-feet; minimum not,determined; minimum gage height, 1.20 feet June 25, 1949.

Maximum stage known, 15.8 feet, from floodmarks, Dec. 11, 1937 (discharge, 35,000 

second-feet, by slope-area method).

Remarks. Records good, 

voirs above station.

Plow regulated by four small power plants and several small reserAbout 10 second-feet diverted above station for irrigation.

Rating tables, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

2.2 136 3.0 350 5.0 1,420 2.4 133 3.8 590 

2.3 156 3.4 495 5.5 1,980 2.6 180 4.2 795 

2.4 178 3.8 660 6.0 2,750 2.8 237 4.6 1,040 

2.6 228 4.2 850 7.0 4,350 3.0 298 5.0 1,380 

2.8 286 4.6 1,080 7.8 5,710 3.4 431 5.3 1,710

Discharge, In second- feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

2S 

30 

31

Oct.

165 

154 

183 

165 165'

169 

167 

167 

160 

176

167 

169 

169 

167 

171

163 

180 

178 

183 

190

202 

195 

185 

202 

195

197 

197 

195 

176 

197 

202

Nov.

205 

197 

197 

197 

202

195 

210 

205 

225 

286

236 

202 

239 

236 

218

218 

218 

215 

218 

212

228 

228 

228 

220 

231

228 

218 

234 

220 

220

Dec.

220 

220 

223 

218 

245

234 

231 

234 

231 

228

223 

225 

228 

225 

223

231 

239 

248 

271 

236

228 

231 

228 

228 

228

215 

231 

228 

225 

223 

225

Jan.

228 

220 

234 

228 

234

223 

223 

248 

245 

769

388 

315 

305 

512 

274

271 

1,910 

2,080 

678 

527

990 

746 

765 

591 

441

374 

364 

385 

396 

357 

321

Feb.

292 

286 

528 

5,600 

2,920

2,790 

878 

620 

509 

706

550 

456 

431 

407 

390

417 

417 

414 

407 

404

383 

380 

380 

377 

387

383 

360 

373

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

ber. ....................................

nber . ..'.................................

lendar year 1949

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

.'

ter year 1949-50 .......................

Mar.

366 

366 

360 

370 

387

414 

363 

340 

337 

337

324 

308 

308 

301 

295

298 

346 

435 

794 

695_

529 

605 

554 

1,640 

850

650 

586 

537 

505 

490 

505

Apr.

517 

533 

541 

533 

554

784 

720 

680 

610 

568

541 

545 

685 

600 

563

568 

563 

576 

590 

600

650 

670 

650 

605 

572

568 

572 

563 

533 

501

Secondfoot-days

5,551 

6,586 

7,123

106,701

15,842 

22,445 

15,195 

17,755 

15,657 

10,291 

6,712 

5,316 

5 t183.

133,656

May

537 

554 

517 

478 

467

475 

438 

445 

435 

417

428 

438 

456 

475 

505

513 

537 

537 

509 

509

529 

554 

568 

586 

600

568 

545 

533 

505 

490 

509

Maximum

202 

286 

271

2,080

2,080 

5,600 

1,640 

784 

600 

497 

279 

188 

194

5,600

June

497 

494 

463 

414 

421

407 

397 

373 

350 

340

330 

356 

340 

320 

333

346 

324 

308 

301 

Z92

304 

308 

301 

314 

292

289 

276 

267 

267 

267

July

276 

267 

279 

264 

270

255 

246 

249 

234 

246

225 

220 

217 

220 

225

202 

217 

200 

197 

194

194 

183 

178 

191 

178

180 

180 

186 

183 

170 

186

Aug.

178 

180 

175 

178 

175

172 

183 

170 

180 

175

175 

175 

168 

172 

170

' 170 

170 

168 

153 

178

188 

168 

162 

170 

165

162 

160 

175 

168 

168 

165

Minimum Mean

154 179 

195 220 

215 230

154 292

220 511 

286 802 

295 490 

501 592 

417 505 

267 343 

170 217 

153 171 

153 173

153 366

Sept.

165 

165 

153 

170 

170

162 

168 

168 

170 

162

178 

170 

165 

175 

165

168 

160 

194 

183 

180

180 

175 

172 

170 

186

183 

186 

180 

180 

180

Runoff In 

acre-feet

11,010 . 

13,060 

14,130

211,600

31,420 

44,530

30,; 140

35,220 

31,060 

20,410 

13,310 

10,540 

10,280

265,100

Peak discharge (base. 2.500 sec.-ft.).- 

sec.-ft.j Mar. 24 (8 p.m.) 3,170 sec.-ft.

. Jan. 17 (6 p.m.) 3,870 aeo.-ft.; Feb. 6 {2 a.m.) 8,630
PAYNES CREEK BASIN 323

Paynes Creek near Red Bluff, Calif.

Location.--Water-stage recorder, lat. 40°16', long. 122°11', in NE^ sec. 22, T. 28 N., 

H. a W., 0.8 mile upstream from mouth and 7 miles northeast of Red Bluff. -Altitude 

of gage, about 360 feet (from topographic map).

Records available. October 1949 to September 1950.

Extremes. Maximum discharge during year, 4,590 second-feet Feb. 4 (gage height, 7.93 

reet), from rating curve extended above 420 second-feet by logarithmic plotting; no 

flow Aug.'4 to Sept. 16, and part of Sept. 17.

Remarks. Records good except those above 1,000 second-feet, which are fair, 

versions above station for irrigation. Some dlRatlng table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.66

1.8

1.9

2.0

2.1

2.2

0

.2

.3

.6

1.1

1.8

2.3

2.4

2.5 

2.7 

2.9 

3.1

7.

15

36

64

100

3.3 

3.5 

3.8 

4.1 

4.4 

4.7

144

200

305

440

600

790

5.1 

5.5 

6.0 

6.5 

7.0 

7.4

1,090

1,420

1,900

2,460

3,140

3,740

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

3 

3 

4 

5

6 

7

8 

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

Nov.

0.6 

.6 

.6 

.5 

.5

.5 

.6 

.8 

1.3 

5.0

3.0 

1.8 

1.6 

1.6 

1.6

1.5 

1.4 

1.4 

1.5 

1.5

1.4 

1.4 

1.4 

1.5 

1.5

1.6 

1.6 

1.6 

1.6 

1.6

Dec.

1.6 

1.6 

1.5 

1.5 

1.5

1.7 

4.0 

8.6 

8.0 

8.0

8.0 

8.0 

8.0 

8.6 

8.6

S.6 

15 

16 

12 

12

11 

11 

9.3 

9.3 

9.3

9.3 

9.3 

9.3 

9.3 

10 

9.3

Jan.

9.3 

9.3 

9.3 

9.3 

9.3

9.3 

10 

32 

30 

254

103 

64 

120 

321 

61

52 

L,240 

1,770 

412 

220

644 

392 

283 

157 

94

67 

62 

175 

130 

83 

69

Feb.

56 

48 

290 

3,720 

1,840

1,490 

465 

279 

197 

408

275 

182 

139 

115 

96

90 

89 

72 

67 

61

55 

50 

46 

44 

41

40 

38 

36

Month

Octo 

Move 

Dace

Ca

Janu 

Febn 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

lendar year

ter year 1949-50 .......................

Mar.

34 

34 

33 

32 

32

30 

28 

25 

25 

24

23 

23 

23 

23 

23

22 

25 

27 

116 

132

90 

72 

66 

470 

453

345 

207 

147 

117 

98 

81

Apr.

67 

60 

55 

48 

44

49 

52 

90 

85 

72

64 

58 

64 

60 

56

50 

48 

41 

36 

35

32 

32 

30 

25 

26

26 

25 

21 

10

a. 6

f«ys

18,6 

43.1 

249.2

-

6, 900. d 

10,329 

2,880 

1,369.6 

201.1 

19.5 

7.7 

.4 

3.8

22,022.8

Hay

10 

19 

18 

13 

12

10 

9.3 

7.4 

8.0 

7.4

7.4 

6,8 

6.3 

5.8 

5.4

4.3 

5.0 

5.0 

4.3 

4.0

3.4 

3.2 

3.4 

3.4 

3.4

3.0 

3.2 

3.4 

3.0 

2.5 

.8

Ma*l.u.

5.0 

16

-

1,770 

3,270 

470 

90 

19 

1.1 

.3 

.2 

 *

3,720

June

0.6 

.5 

.5 

.5 

.5

.5 

.7 

.7 

.7 

.7

.9 

1.1 

.9 

.9 

.9

1.0 

1.0 

1.0 

.9 

.7

.5

.5 

.5 

.6 

.5

.4

.4 

.3 

.3 

.3

July

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.2

.2 

.2 

.3 

.3 

.2

.2 

.2 

.1 

.1 

.1

.1 

.2 

.3 

.3 

.3 

.3

Minimum

oTs

1.5

-

9.3 

36 

22 

8.6 

.8 

.3 

.1 

0 

0

0

Aug.

0.2 

.1 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

O

0 

0 

0 

0 

0

Mean

0.60 

1.44 

8.04

-

223

369 

92.9 

45.7 

6.49

?25 

.01 

.13

60.3

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

.4 

.4

.3

.3

.2 

.2 

.2 

.3

.3 

.3 

.3 

.2 

.3

Runoff In 

acre-feet

37 

85 

494

-

13,690 

20,490 

5,710 

2,720 

399 

39 

15 

.8 

7.5

43,690

Peak discharge (base. 1.600 see.-ft.). Jan. 18 (2 a.m.) 3,820 sec.-ft.i Feb. 4 (7 a.m.) 4,590 

sec.-ft.

Mote. No gage-height record Oct. 1-26; discharge computed on basis of records for Antelope Creek 

near Red Bluff.
324 ANTELOPE CREEK BASIN

Antelope Creek near Red Bluff, Calif.

Location. Water-stage recorder, lat. 40°12'. long. 122°07' , in SE^ sec. 7, T. 27 N., R. 

z w.7 6 miles upstream from mouth and 6 miles eas* of Red Bluff. Altitude of gage, 

about 340 feet (from topographic map).

Drainage area. 124 square miles.

Records available. October 1940 to September 1950.

Average discharge. 10 years, 140 second-feet.

Extremes. Maximum discharge during year, 5,260 second-feet Feb. 4 (gage height, 10.30 

reet); minimum, 23 second-feet Nov. 14. «

1940-50: Maximum discharge, 10,400 second-feet Feb. 6, 1942 (gage height, 13.9 

feet); minimum, 14 second-feet Oct. 1, 1940.

Flood of December 1937 reached stage of about 22 feet, from floodmarks.

Remarks. Records fair. Small diversion above station for Red Bluff water supply during 

October to June of each year.

Day

1 

2 

3

4 

5

6 

7

e

9 

10

11

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

32 

32 

32 

31 

31

30 

31 

30 

30 

31

32 

31 

31 

31 

31

30 

30 

30 

30 

31

31 

31 

31 

31 

31

31 

31 

31 

31 

31 

31

Nov.

31 

31 

31 

31 

31

31 

31 

32 

47 

60

42 

38 

36 

32 

34

34 

34 

34 

34 

34

35 

35 

35 

36 

36

36 

36 

36 

36 

36

Dec.

36 

36 

36 

36 

38

39 

38 

38 

38 

37

36 

36 

36 

36 

38

40 

44 

47 

51 

41

38 

39 

39 

38 

38

38 

38 

38 

38 

38 

38

Jan.

37 

38 

36 

36 

36

34 

38 

55 

45 

170

112 

49 

44 

92 

52

58 

1,520 

652 

273 

174

562 

358 

256 

177 

109

68 

66 

147 

114 

77 

62

Feb.

56 

50 

164 

3,610 

1,360

1,600 

455 

267 

189 

314

273 

183 

144 

122 

108

112 

128 

108 

98 

92

87 

80 

76 

73 

73

73 

73 

73

Month

Goto 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

' Va

mber. ............---.-.----.-.--...-----

lendar year 194S .......................

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

ter year 1949-50 .......................

Mar.

73 

72 

72 

72 

78

90 

78 

73 

70 

70

66 

62 

60 

59 

58

56 

70 

90 

189 

223

163 

180 

177 

273 

358

312 

220 

177 

155 

139 

127

Apr.

120 

117 

117 

112 

112

177 

208 

263 

246 

195

169 

157 

183 

174 

155

147 

144 

147 

152 

162

180 

198 

202 

186

177

174 

177 

174 

160. 

152

Secondfoot-days

958 

1,065 

1,197

28,990

5,547 

10,041 

3,962 

5,037 

3,905 

1,692 

1,012 

925 

866

36,207

nay

163 

160 

155 

134 

124

112 

106 

100 

96 

98

98 

106 

112 

120 

139

147 

150 

147 

139 

137

139 

142 

144 

142 

137

127 

117 

110 

104 

102 

98

Maximum

32 

60 

51

1,920

1,520 

3,610 

358 

263 

163 

100 

37 

31 

33

3,610

June

100 

90 

83 

78 

70

69 

67 

65 

62 

60

57 

58 

57 

57 

58

54

52 

50 

48 

45

44 

42 

41 

44 

44

42 

40 

39 

38 

38

July

37 

36 

34 

35 

35

35 

34 

34 

34 

34

34 

34 

33 

33 

33

33 

32 

32 

32 

32

31 

31 

31 

31 

30

30 

30 

30 

31 

31 

30

MlnlBUB

30 

31 

36

28

34 

50 

56 

112 

96 

38 

30 

28 

27

 27

Aug.

30 

30 

31 

31 

31

31 

31 

31 

31 

31

30 

30 

30 

30 

30

30 

30 

30 

29 

29

29 

29 

30 

30 

30

29 

29 

29 

28 

28 

28

Mean

30.9 

35.5 

38'.6

79.4

179 

359 

128 

168 

128 

56.4 

32.6 

29.8 

28.9

99.2

Sept.

28 

28 

27 

28 

27

27 

27 

30 

30 

30

30 

30 

29 

29 

28

28 

28 

31 

33 

31

30 

30 

29 

28 

28

28 

29 

29 

28 

28

Runoff In 

acre-feet

1,900 

2,110 

2,370

57,490

11,000 

19,920 

7,860 

9,990 

7,750 

3,360 

2,010 

1,830. 

1,720

71,820

Peak discharge (base, 2,020 sec. -ft.). Jan. 17 (2 p.m.) 2,750 sec. -ft. i Feb. 4 (3:30 p.m.) 5,260
MILL CREEK BASIN 325

Mill Creek near Los Molinos, Calif.

Location. Water-stage recorder, lat. 40°03'20", long. 122°01'15", In Nj sec. 6, T. 25 N., 

K. 1 W., 5 miles upstream from mouth and 5 miles northeast of Los Molinos. Altitude of 

gage, about 420 feet (from topographic map).

Drainage area. 134 square miles.

Records available.--October 1928 to September 1950. September 1909 to September 1913 

[fragmentary) at site 0.3 mile downstream.

Average discharge.--22 years (1928-50), 270 second-feet.

Extremes. Maximum discharge during year, 4,430 second-feet Feb. 4 (gage height, 7.95 

reet); minimum, 83 second-feet Oct. 31.

1928-50: Maximum discharge, 23,000 second-feet Dec. 11, 1937 (gage height, 23.4 

feet, from floodmarks), from rating curve extended above 3,900 second-feet on basis of 

slope-area studies; minimum, 49. second-feet Dec. 13, 1932.

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

NO storage or large diversion above station.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

1.3 73

1.4 90

1.5 108

1.6 129

Oct. 1 to Jan. 17

1.8 181

2.2 302

2.6 445

3.0 605

Jan. 18 to Sept. 30

3.5 S25

4.O 1,060

4.4 1,260

1.4

1.5

1.6 

1.8

2.1

84

102

123

174

264

2.4 

2.8 

3.2 

3.6 

4.O

367

525

690

870

1,060

4.5 

5.0 

5.5 

6.0 

7.0

1,310

1,600

1,920

2,300

3,310

Discharge, In second-feet, water year October 1949 to September 1950

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 

26 

29 

30 

31

Oct.

87 

87 

87 

87 

87

87 

92 

90 

90 

94

94 

90 

88 

87 

87

87 

87 

87 

88 

88

88 

88 

88 

88 

88

87 

87 

87 

87 

87 

85

NOT.

85 

85 

85 

87 

85

85 

87 

94 

139 

149

118 

106 

101 

99 

99

99 

97 

97 

97 

97

95 

95 

95 

99 

99

97 

97 

104 

108 

103

Dec.

101 

99 

97 

97 

104

101 

101 

101 

99 

97

95 

94 

95 

95 

99

103 

108 

112 

112 

99

97 

99 

99 

101 

99

99 

97 

97 

99 

99 

99

Jan.

97 

99 

90 

94 

97

94 

101 

125 

112 

188

134 

114 

114 

145 

112

164 

1,240 

905 

398 

280

1,180 

698 

661 

444 

283

217 

196 

232 

188 

166 

145

Feb.

137 

128 

256 

3,210 

1,850

2,O20 

684 

421 

323 

476

394 

296 

258 

232 

226

258 

261 

242 

235 

232

220 

208 

205 

205 

226

242 

248 

261

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

ber. ....................................

Bber. ...................................

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

258 

254 

248 

251 

290

280 

248 

229 

217 

211

194 

180 

171 

166 

160

160 

259 

310 

518 

557

413 

543 

505 

477 

477

429 

371 

327 

303 

290 

313

Apr.

337 

378 

397 

371 

375

585 

695 

663 

529 

. 437

405 

397 

509 

461 

417

425 

445 

489 

509 

549

633 

672 

629 

557 

517

529 

553 

533 

465 

433

Secondfoot -day s

2,731 

2,983 

3,094

68,168

9,113 

13,954 

9,609 

14,894 

14,630 

9,306 

5,327 

3,271 

2,869

91,781

May

485 

445 

405 

356 

345

348 

323 

313 

313 

330

363 

417 

461 

517 

565

573 

589 

549 

485 

493

525 

565 

585 

573 

585

545

529 

525 

473 

517 

533

Maximum

94 

149 

112

1,810

1,240 

3,21O 

557 

695 

589 

513 

248 

123 

110

3,210

June

513 

497 

453 

405 

409

409 

345 

299 

286 

283

280 

274 

258 

310 

277

280 

267 

264 

280 

296

306 

299 

283. 

290 

248

238 

235 

232 

242 

248

July

248 

248 

242 

232 

220

208 

205 

196 

191 

185

182 

177 

174 

171 

166

160 

158 

155 

152 

150

147 

145 

142 

140 

137

137 

135 

133 

133 

130 

128

Minlnum

85 

85 

94

82

90 

 128 

160 

337 

313 

232 

128 

91 

89

85

Aug.

123 

123 

121 

123 

119

117 

115 

112 

112 

112

110 

110 

108 

108 

106

102 

100 

1OO 

100 

98

98 

98 

98 

98 

98

' 97 

95 

93 

93 

93 

91

Mean

88.1 

99.4 

99.8

187

294 

498 

310 

496 

472 

310 

172 

106 

95.6

251

Sept.

91 

89 

89 

89 

89

89 

91 

97 

97 

95

97 

95 

98 

a96 

a94

a94 

alOO 

allO 

a!08 

a!04

alOO 

a98 

a98 

a96 

a96

a94 

a94 

a94 

a94 

a93

Runoff In 

acre-feet

5,420 

5,920 

' 6,140

135,200

18,080 

27,680 

19.06O 

29,540 

29,020 

18,460 

10,570 

6,490 

5,690

182,100

Peak discharge (base, 1,50Q sec.-ft.). Jan. 17 (5:30 p.m.) 1,930 sec.-ft.; Jan. 21 (1:30 p.m.) 

2,57O sec.-ft.; Feb. 4 (3 p.m.; 4,430 sec.-ft.

a Ho gage-height record; discharge computed on basis of records for Deer Creek near Vlna.

207481 0-52-22
326 ELDER CREEK BASIN

Elder Creek near Paskenta, Calif.

Location.--Water-stage recorder, lat. 40°01'30", long. 122°30'30", in NWir sec. 14, T. 25 

Ji., K. 6 W., 2.5 miles downstream from South Fork and 11 miles north of Paskenta, 

Tehama County. Altitude of gage, about 720 feet (from topographic map).

Records available. December 1948 to September 1950.

Extremes. Maximum discharge during year, 928 second-feet Feb. 5 (gage height, 6.13 feet), 

rrom rating curve extended above 400 second-feet on basis of logarithmic plotting; no 

flow Aug. 6, Aug. 14 to Sept. 16, and part of Sept. 17.

1948-50: Maximum discharge, 3,690 second-feet Mar. 11, 1949 (gage height, 8.78 

feet), from rating curve extended above 400 second-feet on basis of logarithmic 

plotting; no flow Aug. 6, Aug. 14 to Sept. 16, and part of Sept. 17, 1950.

Remarks. Records good above 50 second-feet, fair below. No large diversion.

Rating tables, water year 1949-50, except period of lee effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Feb. 5 Feb. 6 to Sept. 30

1.9 0.3 2.8 17 4.2 179 1.6 0 2.4 6.7 3.S 110 

2.0 .8 3.0 27 4.6 270 1.7 .1 2.6 12 4.2 179 

2.2 2.6 3.3 51 5.0 395 1.8 .3 2.8 19 4.6 270 

2.4 5.5 3.6 83 5.2 470 2.0 1.4 3.0 28 5.1 430 

2.6 10 3.9 126 2.2 3.5 3.4 60

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24

25

26 

27 

26 

29 

30 

31

Oct.

0.8 

.8 

.7 

.8 

.8

.8 

.8 

.8 

1.0 

1.3

1.8 

1.7 

1.2 

1.1 

1.2

1.2 

1.2 

1.2 

1.4 

. 1.9

2.1 

2.2 

2.2 

2.3 

2.3

2.3 

2.4 

2.4 

2.2 

2.0 

2.0

Nov.

2.0 

2.1 

2.2 

2.2 

2.3

2.3 

2.4 

3.2 

13 

16

10 

7.1 

6.1 

5.5 

5.7

5.7 

5.7 

5.3 

5.2 

5.2

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.2 

5.0

Dec.

5.0 

5.0 

5.0 

4.9 

*5.3

5.5 

6.5 

7.1 

6.3 

5.9

5.7 

5.5 

5.5 

5.9 

8.2

7.1 

8.8 

- 8.0 

7.1 

6.5

5.9 

6.1 

6.1 

6.1 

5.9

5.9 

5.9 

5.9 

5.9 

5.9 

5.9

Jan.

5.5 

5.7 

b5 

b5 

»b5

b6 

b7 

7.1 

8.8 

135

34 

15 

22 

71 

32

26 

69 

223 

248 

162

256 

187 

*271 

126 

73

54 

49 

50 

46 

40 

33

Feb.

29 

26 

38 

287 

462

399 

143 

95 

77 

146

104 

82 

73 

72 

88

99 

97 

81 

75 

71

63 

60 

61 

72 

84

87 

88 

86

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Ha

lendar year 194£

ter year 1949-50 .......................

Mar.

77 

71 

66 

68 

73

66 

56 

51 

49 

45

39 

35 

33 

31 

29

29 

109 

110 

230 

179

129 

126 

166 

164 

121

103 

91 

84 

78 

78 

86

Apr.

96 

104 

99 

88 

86

90 

88 

79 

71 

66

61 

61 

66 

61 

59

60 

64 

71 

73 

84

92 

86 

73 

66 

59

58 

56 

52 

46 

43

May

43 

42 

38 

36 

32

30 

29 

28 

26 

25

24 

25 

26 

26 

27

26 

26 

23 

21 

20

20 

19 

19 

17 

17

15 

14 

13 

12 

11 

9.7

Second- Maximum foot-days «»»«»»

46.9 2.4 

159.4 16 

190.3 8.8

24,890.7 2,000

2,277.1 271 

3,145 462 

2,672 230 

2,158 104 

739.7 43 

' 221.6 12 

24.7 2.5 

1.2 .1 

8.6 2.0

11,644.5 462

June

8.9 

8.2 

8.0 

7.6 

7.4

7.1 

7.8 

8.2 

8.0 

8.2

9.4 

12

10 

11 

10

11

9.2 

8.5 

7.1 

6.3

6-.0 

5.4 

5.3 

5.4 

5.4

5.1 

4.5 

4.1 

3.5 

3.0

July

2.5 

2.2 

1.9 

1.9 

1.8

1.6 

1.5 

1.3 

1.2 

1.2

1.3 

1.1 

.8 

.6 

.6

.5 

.3 

.3 

.3 

.3

.3 

.2 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Aug.

0.1 

.1 

.1 

.1 

.1

0 

.1 

.1 

.1 

.1

.1 

.1 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.5 

2.0 

1.3 

.8

.6 

.5 

.4 

.3 

.4

.5 

.5 

.4 

.2 

.2

Mini Mean . »««£

0.7 1.51 93 

2.0 5.31 316 

4.9. 6.14 377

.4 68.2 49,380

5 73.5 4,520 

26 112 6,240 

29 86.2 5,300 

43 71.9 4,280 

9.7 E3.9 1,470 

3.0 7.39 440 

.1 .80 49 

0 .04 2.4 

0 .29 17

0 31.9 23,100

Peak discharge (base, 1,200 sec. -ft.). No peak above baae.

Winter discharge measurement made on this day 

b Stage-discharge relation affected by Ice.
ELDER CREEK BASIN 

Elder Creek at Berber, Calif.

327

Location. Water-stage recorder, lat. 40°03', long. 122°10', in Saucos Grant, 0.8 mile west 

or uerber and 3.7 miles upstream from mouth. Altitude of gage, about 240 feet (from 

topographic map).

Records available. October 1949 to September 1950.

Extremes. Maximum discharge during year, 1,160 second-feet Feb. 6 (gage height, 5.72 

TeeTT; no flow for several months.

Remarks. Records good. Ho large diversion.

Discharge, In second-feet, Mater year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11

12

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29

30 

31

Oct. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

a20

a80 

a20 

a20 

a60 

a40

a30 

a35 

140 

257 

188

188 

214 

209 

145 

81

57 

49 

46 

46 

40 

35

Feb.

28 

26 

35 

578 

471

606 

191 

110 

88 

153

117 

83 

68 

62 

70

- 81 

86 

74 

64 

60

56 

51 

50 

54 

67

70 

72 

74

Month

Goto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lemJar year 

&ry

St......................................

i 

ter year 1949-50 .......................

Mar.

67 

62 

57 

56 

57

60 

51 

46 

42 

41

36 

32 

30 

29 

27

25 

43 

106 

_ 149 

191

127 

110 

110 

199 

132

106 

92 

84 

77 

74 

77

Apr.

86 

95 

97 

88 

79

84 

86 

83 

72 

65

60 

57 

59 

59 

53

51 

53 

56 

60 

67

77 

79 

68 

59 

54

49

46 

44 

40 

37

Secondfoot-days

0 

0 

0

-

2,000 

3,545 

2,395 

1,963 

418.3 

0 

0 

0 

0

10,321.3

Peak discharge (base, 1,200 see. -ft.). No peak above

May

34 

35 

33 

30 

27

24 

22 

20 

18 

16

14 

14 

14 

15 

16

15 

14 

12 

10 

8.0

6.5 

5.7 

4.8 

3.9 

3.3

2.1 

1.0 

0 

0 

0 

0

Maximum

0 

0 

0

-

257 

606 

199 

97 

35 

0 

0 

0 

0

606

June July

Minimum

0 

0 

0

-

0 

26 

25 

37 

0 

0 

0 

0 

0

0

Aug. Sept.

-.-_ Runoff In "ean acre-feet

0 0 

0 0 

0 ' 0

-

64.5 3,970 

127 7,030 

77.3 4,750 

65.4 3,890 

13.5 830 

0 0 

0 0 

0 0 

0 0

28.3 20,470

base.

a No gage-height record; discharge computed on basis of recorded range In stage, weather records, 

and records for station near Paskenta.
328 THOMES CREEK BASIN

Thomes Creek at Paskenta, Calif.

Location.--Water-stage recorder, lat. 39°52', long. 122°a3', in NVf£ sec. 4, T. 23 N., R. 

t> w., 0.5 mile upstream from Paskenta and 4.5 miles downstream from Mill Creek. »

Drainage area. 188 square miles.

Records available.--October 1920 to September 1950 at various sites close to Paskenta 

(prior to January 1921, gage heights only).

Average discharge.--29 years (1921-50), 237 second-feet.

Extremes. Maximum discharge during year, 3,040 second-feet Mar. 19 ( gage height, 6.20 

reet); no flow Aug. 31 to Sept. 14.

1921-50: Maximum'discharge, 18,600 second-feet Jan. 21, 1943 (gage height, 10.92 

feet), from rating curve extended above 7,000 second-feet by logarithmic plotting; no 

flow at times during many years.

Remarks.--Records good except those for Oct. 1 to Mar. 1 and June 30 to July 7, which are 

Fair. Ifo storage or diversion above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.5 

2.0 

2.5

3.0 

2.8 

2.0 

2.0 

2.0

2.0 

2.0 

2.3 

2.5 

2.5

2.5 

2.5 

3.0 

3.6 

3.6

4.0 

4.0 

4.4 

4.4 

3.3 

3.3

Nov.

3.3 

3.3 

3.6 

4.0 

4.8

4.8 

16 

24 

36 

61

36 

24 

18 

18 

20

620 

620 

e!9 

e!8 

e!8

17 

17 

18 

18 

el 7

e!7 

e!7 

17 

17 

16

Dec.

16 

15 

14 

14 

15

18 

17 

19 

19 

18

17 

15 

15 

15 

17

16 

16 

16 

17 

16

13 

15 

14 

15 

18

15 

15 

15 

15 

16 

16

Jan.

13 

14 

10 

11 

12

12 

15 

20 

50 

200

80 

50 

60 

elOO 

e70

e60 

164 

423 

500 

350

700 

600 

1,500 

800-- 

500

400 

350 

350 

300 

250 

200

Feb.

180 

150 

200 

600 

550

450 

380 

320 

300 

450

380 

320 

300 

300 

350

400 

400 

350 

300 

280

250 

230 

230 

300 

400

600 

650 

600

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949

Bfflt)8I* 

ter year 1949-50 .......................

Mar.

550 

499 

440 

472 

527

426 

344 

305 

271 

232

207 

177 

163 

150 

137

143 

1,280 

980 

2,130 

1,410

1,000 

1,320 

996 

844 

698

600 

548 

513 

492 

527 

645

Apr.

735 

780 

735 

645 

645

698 

615 

541 

478 

452

446 

472 

600 

506 

466

499 

541 

608 

645 

728

765 

712 

585 

520 

478

472 

466 

420 

360 

332

Secondfoot -days

74.7 

542.8 

490

61,719.6

8,164 

10,220 

19,026 

16,945 

7,971 

1,987 

235.3 

49.2 

32.8

65,737.8

May

332 

300 

267 

244 

236

240 

215 

207 

207 

219

236 

257 

291 

332 

360

349 

349 

281 

249 

249

262 

286 

286 

262 

257

236 

223 

196 

188 

181 

174

Maximum

4.4 

61 

19

1,480

1,500 

650 

2,130 

780 

360 

157 

21 

3.1 

3.9

2,130

June

157 

137 

120 

107 

100

93 

88 

78 

72 

69

72 

74 

69 

66 

66

66 

59 

55 

51 

49

47 

43 

40 

38 

36

34 

30 

25 

24 

22

July

Minimum

1.0 

3.3 

13

.2

10 

150 

137 

332 

174 

22 

2.8 

0 

0

0

21 

19 

17 

15 

13

12 

11 

9.8 

9.1 

9.1

8.5 

7.9 

7.3 

6.8 

5.8

5.5 

5.5 

5.5 

5.1 

4.3

4.3 

3.8 

3.8 

3.8 

3.4

3.4 

3.1 

3.1 

2.8 

2.8 

2.8

Aug.

2.8 

2.8 

2.8 

2.8 

3.1

2.6 

2.6 

2.3 

2.3 

2.3

2.2 

2.0 

2.2 

2.3 

2.2

1.8 

1.4 

1.2 

1.1 

.9

.8 

.8 

.8 

.7 

.6

.6 

.5 

.4 

.2 

.1 

0

Mean

2.41 

18.1 

15.8

169

263 

355 

614 

' 565 

257 

66.2 

7.59 

1.59 

1.09

180

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.4

.4 

.6 

2.8 

2.6 

3.7

3.9 

3.9 

3.2 

2.5 

2.1

1.9 

1.6 

1.3 

1.0 

.9

Runoff in 

acre -feet

148 

1,080 

972

122,400

16,190 

20,270 

37,740 

33,610 

15,810 

3,940 

467. 

98 

65

130,400

Peak discharge (base, 1,600 sec. -ft.) .--About Jan. 23 (time unknown) 2,300 see. -ft.; Mar. 17

,_.... . .. . ... __.i Mar. 19 112:30 p.m.) 3,040 sec.-ft.

e Stage-discharge relation Indefinite; discharge computed on basis of recorded,range In stage, 

weather records, and records for Elder Creek near Paskenta.

Note.--Ho gage-height record Jan. 7-13, Jan. 19 to Mar. 1, June 30 to July 7j discharge computed on 

basis of recorded range In stage, weather records, and records for Elder Creek near IPaskenta.
DEER CREEK BASIN 329

Deer Creek near Vina, Calif.

Location.«--Water-stage recorder, lat. 40°01>,, long. 121 0 56' , in NEi sec. 23, T. 25 N., R 

IwTT 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 

I9i>y to septemoer 1950.

Average discharge. 31 years (1912-15, 1920-37, 1939-50), 285 second-feet.

Extremes. Maximum discharge during year, 5,690 second-feet Feb. 4 (gage height, 8'54 

reet;; minimum, 60- second-feet Jan. 4,6.

1911-15, 1920-37, 1939-50: Maximum discharge, 23,800 second-feet Dec. 10, 1937 

(gage height, 19.2 feet, present datum, from floodmarks), from rating curve extended 

above 7,000 second-feet on basis of velocity-area studies; minimum, 43 second-feet 

Dec. 13, 1932.

Remarks.--Records good. No storage or large diversioh above station.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

2.2 70 3.3 338 5.1 1,350 

2.3 84 3.6 458 5.5 1,66O 

2.4 101 3.9 606 6.0 2,150 

2.5 12O 4.2 77O 6.5 2,750 

2.7 162 4.5 950 7.0 3,430 

3.0 240 4.8 1,140 7.5 4.13O

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

El 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

76 

74 

74 

73 

74

74 

77 

77 

77 

78

84 

78

77 

77 

77

77 

77 

77 

77 

80

80 

80 

80 

80 

80

80- 

B0\ 

80- 

80 

78 

78

Nov.

78 

78 

78 

78 

78

78 

80 

84 

138 

164

120 

101 

92 

89 

87

87 

86 

84 

84 

84

83 

83 

83 

84 

84

84 

84 

86 

87 

84

Dec.

83 

81 

81 

81 

89

87 

87 

S7 

84 

83

8O 

77 

80 

81 

84

87 

99 

105 

101 

84

84 

84 

84 

84 

83

83 

81 

81 

83 

83 

81

Jan.

81 

84 

76 

83 

78

80 

87 

103 

96

167

129 

99 

104 

124 

92

183 

867 

806 

442 

331

1.14O 

907 

995 

681 

371

270 

240 

258 

207 

186 

164

Feb.

153 

142 

190 

3,950 

2,64O

3,010 

1,O8O 

628 

458 

580

481 

375 

324 

289 

286

32O 

334 

313 

306 

292

276 

261 

258 

255 

279

299 

309 

316

Month

Oo to 

Move

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-5O .......................

Mar.

313 

3O9 

299 

309 

353

353 

306 

280 

258 

252

234 

209 

204 

194 

186

186 

316 

445 

762 

938

660 

905 

818 

806 

824

693 

585 

514 

467 

441 

458

Apr.

490 

539 

564 

529 

534

905 

1,170 

1,130 

914 

770

688 

660 

794 

715 

649

649 

649 

682 

 693 

726

806 

848 

600 

715 

660

633 

633 

606 

534 

504

Secondfoot-days

2,411 

2,690 

2,632

65,181

9,491 

18,404 

13,877 

21,189 

12,413 

5,344 

3,276 

2,704 

2,569

97,007!

May

534 

514 

467 

424 

415

411 

368 

349 

345 

349

364 

387 

407 

436 

467

472 

476 

449 

419 

407

407 

407 

407 

403 

387

368 

345 

334 

313 

296 

286

Maximum

84 

164 

105

2,380

1,140 

3,950 

938 

1,170 

534 

273 

120 

94 

99

3,950

June

273 

258 

246 

232 

22O

212 

212 

202 

194 

186

181 

184 

181 

204

_ 186

176 

169 

162 

153 

149

144 

140 

136 

153 

147

136 

132 

128 

126 

122

July

120 

118 

118 

118 

116

116 

114 

112 

112 

112

110 

110 

109 

107 

107

105 

105 

105 

103,

103

101 

99 

98 

98 

96

96 

94 

94 

94 

94 

92

Aug.

92 

92 

92 

92 

94

92 

91 

91 

89 

89

89 

89 

89 

89 

87

87 

86 

84 

84 

84

84 

8e 

84 

84 

84

84 

84 

84 

84 

83 

83

Sept.

81 

81 

81 

81 

81

81 

83 

84 

87 

84

87 

86 

87 

86 

84

84 

98 

99 

99 

92

87 

66 

64 

84 

84

84 

. 84 

84 

- 83 

83

Minimum Mean »£*£

73 77.8 4,780 

78 -89.7 5,340 

77 84.9 5,22O

71 179 129,3OO

76 306 18,83O 

142 657 ' ' 36,500 

186 446 27,520 

490 706 42,030 

286 400 24,620 

122 178 10,600 

, 92 106 6,500 

83 87.2 5,360 

,81 85.6 5,100

73^ 266 192,400

Peak discharge (base, 2.500 sec.-ft.) . Feb. 4 (4 p.m.) 5,690 sec.-ft.
330 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 1950.

Average discharge. 20 years, 129 second-feet.

Extremes.--Maximum discharge during year, 3,360 second-feet Feb. 4 (gage height, 11.63 

reet); minimum, 16 second-feet Jan. 6.

1930-50: 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 

Dec. 11, 1932, Aug. 15, 1939, Sept. 18, 1947.

Remarks. Records good. No storage or large diversion above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

21 

21 

21 

21 

21

21 

21 

21 

21 

21

21 

21 

21 

21 

21

21 

21 

21 

21 

21

21 

20 

20 

20 

20

20 

20 

20 

21 

21 

21

Nov.

21 

21 

22 

22 

22

22 

22 

23 

50 

66

38 

29 

25 

25 

24

23 

23 

22 

22 

22

22 

23 

23 

24 

24

23 

23 

23 

23 

23

Dec.

23 

23 

23 

23 

25

29 

28 

28 

26 

25

24 

23 

24 

24 

28

30 

42 

49 

52 

37

31 

30 

28 

28 

28

26 

26 

26 

26 

26 

25

Jan.

25- 

26 

23 

21 

26

23 

28 

41 

33 

54

47 

34 

42 

52 

28

79 

378 

497 

248 

181

601 

513 

415 

295 

156

105 

87 

102 

85 

74 

65

Feb.

56 

54 

57 

1,950 

2,160

2,080 

825 

492 

358 

377

352 

318 

260 

230 

230

266 

297 

272 

248 

230

206 

188 

170 

164 

176

176 

176 

170

Month

Goto 

Move

Deoe

Ca

Janu 

Febn 

Marc 

Aprl

Ibtv

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

156 

143 

132 

125 

158

182 

146 

130 

113 

111

100 

92 

85 

81 

77

74 

, 110 

139 

251 

303

242 

326 

318 

402 

477

384 

360 

327 

280 

248 

225

Apr.

204 

195 

182 

165 

157

252 

464 

724 

546 

423

345 

300 

300 

268 

235

211 

197 

180 

169 

159

155 

147 

138 

125 

118

110 

102 

98 

90 

85

Secondfoot -days

644 

775 

886

26,209

4,384 

12,538 

6,299 

6,844 

2,023 

1,028 

769 

661 

621

37,472

May

99 

116 

113 

105 

98

92 

83 

78 

76 

7O

69 

6S 

66 

64 

61

58 

57 

55 

53 

51

49 

48 

47 

46 

45

44 

48 

43 

42 

40 

39

Maximum

21 

66 

52

1,550

601 

2,160 

477 

724 

116 

40 

28 

24 

25

2,160

June

38 

37 

36 

35 

35

35 

36 

36 

35 

35

36 

39 

37 

39 

40

38 

36 

35 

33 

30

31 

32 

33 

32 

31

31 

30 

30 

29 

28

July

28 

28 

27 

26 

25

25 

26 

26 

26 

26

27 

27 

27 

27 

26

24 

24 

24 

24 

23

23 

23 

24 

24 

23

23 

22 

23 

23 

23 

22

Minimum

20 

21 

23

18

21 

54 

74 

85 

39 

28 

22 

20 

19

19

Aug.

22 

23 

23 

23 

24

24 

24 

22 

22 

21

21 

22 

22 

21 

21

20 

21 

20 

20 

20

20 

21 

21 

21 

20

20 

21 

21 

20 

20 

20

Mean

20.8 

25.8 

28.6

71.8

141 

448 

203 

228 

65.3 

34.3 

24.8 

21.3 

20.7

103

Sept.

21 

21 

21 

20 

20

19 

20 

21 

21 

20

20 

21 

19 

19 

19

19 

20 

25 

24 

22

20 

20 

20 

20 

20

21 

22 

22 

22 

22

Runoff In 

acre -feet

1,280 

1,540 

1,760

51,990

8,700 

24,870 

12,490 

13,570 

4,010 

2,040 

1,530 

1,310 

1,230

74,330

Peak discharge (base, 900 sec. -ft.) . Jan. 21 (6 p.m.) 1,250 sec. -ft.; Feb. 4 (5 p.m.) 3,360
STONY CREEK BASIN 331

Stony Creek near Hamilton City, Calif.

Location.--Water-stage recorder, lat. 39°43'20", long. 122°03'10", In Capay Grant, 2.5 

miles southwest of Hamilton City, 8 miles east of Orland, Slenn County, and 5 miles upstream from mouth. Altitude of gage, about 150 feet (from topographic map).

Drainage area. 764 square miles.

Records available.--February 1946 to September 1950; January 1941 to January 1946 at site 

a raiies upstream; records comparable except for extremely low flows.

Extremes.--Maximum discharge during year, 1,810 second-feet'Feb. 6 (gage height, 8.45 feet); 

no now for several months.

1941-50: 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 second-feet; po 

flow part of each year.

Remarks. Records good except those for Apr. 26 to May 13, which are fair. Flow regulated 

Ey~East Park Reservoir beginning In 1910 (usable capacity, 50,620 acre-feet), Stony 

Gorge I Reservoir beginning In 1928 (usable capacity, 50,100 acre-feet). Many diversions 

above station for Irrigation of Orland project, Bureau of Reclamation.

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Mar. 31 to May 7)

4.9 0

5.0 .8

5.1 2.0

5.2 4,0

5.3

5.4

5.5

5.6

8.0

14

5.7 60

5.9 135

6.2 270

6.5 420

6.8 585

7.2 820

7.6 1,070

8.0 1,380

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

Z

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0

O

0 

0 

0 

0 

0

0 

0 

0 

295 

2O 7

148 

520 

592 

851 

486

300 

230 

194 

166 

140 

119

Feb.

103 

81 

70 

736 

1,020

1,370 

888 

552 

415 

421

524 

395 

330 

300 

295

330 

390 

395 

360 

335

320 

295 

285 

290 

330

355 

355 

360

Month

Octo 

Move 

Dece

ca

Janu 

Febr 

Hare 

Aprl 

Hay

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

345 

325 

305 

290 

285

310 

295 

270 

252 

234

216 

198 

180 

166 ~~ 166

103 

88 

408 

406 

881

646 

546 

602 

618 

607

514 

458 

453 

370 

290 

230

Apr.

Secondfoot-days

0 

0 

0

75,080.6

4,248 

11,900 

11,057 

4,184 

398.6 

0 

0 

0 

0

31,787.6

212 

184 

153 

88 

74

55 

70 

99 

103 

95

111 

127 

234 

295 

252

189 

189 

171 

111 

95

135 

176 

198 

166 

111

92 

95 

119 

107 

78

May

64 

50 

45 

38 

35

34 

28 

31 

20 

16

18 

14 

5.6 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

0

6,840

851 

1,370 

881 

295 

64 

0 

0 

0 

0

1,370

June July

Minimum

0 

0 

0

0

0 

70 

88 

55 

0 

0 

0 

0 

0

0

A«eMean

0 

0 

0

206

137 

425 

357 

139 

12.9 

0 

0 

0 

0

87.1

Sept.

V

Runoff In 

acre-feet

0 

0 

0

148,900

8,430 

23,600 

21,930 

8,300 

791 

0 

0 

0 

0

63,050

Peak discharge (base. 2.000 see.-ft.). Ho peak above base.
332 BUTTE CREEK BASIN 

Butte Creek near Chico, 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 1950.

Average aiscnarge. 19 years (1931-50), 373 second-feet.

Extremes. Maximum discharge during year, 5,920 second-feet Feb. 6 (gage height, 7.86 

reet); minimum, 34 second-feet Oct. 7.

1930-50: Maximum discharge, 17,000 second-feet Dec. 11, 1937 (gage height, 18.9 

feet, site and datum then in use), from rating curve extended above 6,000 second-feet 

by logarithmic plotting; minimum recorded, 22 second-feet Aug. 19, 1939.

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

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 1949-50.

Month

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

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

Mean discharge 

(second-feet)

2i 3

46.4

38.2

Runoff 

(acre-feet)

1 53O

2,770

27,690

Discharge, In second-feet, water year October 1949 to September 195o

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

 17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

100 

94

loo

92 

100

100 

100 

90 

92 

92

97 

94 

97 

87 

9O

87 

87 

92 

108 

97

100 

92 

9O 

10O 

90

92 

92 

94 

94 

87 

92

Nov.

87 

1OO 

87 

87 

97

92 

92 

90 

213 

278

185 

136 

113 

116 

116

116 

113 

110 

116 

113

108 

102 

108 

108 

108

108 

108 

108 

116 

100

Dec.

105 

122 

102 

87 

110

102 

119 

105 

110 

100

102 

100 

92 

97 

113

105 

171 

152 

178 

110

127 

113 

108 

102 

110

97 

110 

100 

102 

100 

100

Jan.

105 

122 

87 

97

loo

92 

102 

122 

119 

155

116 

116 

127 

158 

119

223 

747 

886 

435 

326

859 

827 

828 

578 

349

266 

239 

274 

231 

206 

185

Feb.

158 

155 

175 

2,810 

3,750

3,800 

1,4OO 

872 

668 

710

619 

522 

463 

435 

435

486 

469 

435 

419

424

376 

366 

392 

366 

413

400 

400 

4OO

Month

Ooto 

Move 

Dece

Ca

Janu 

Pebr 

Marc

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

390 

380 

36O 

350

400

45O 

400 

380 

360 

340

320 

310 

310 

3OO 

300

300 

350 

446 

829 

812

626 

943 

805 

858 

858

724 

689 

640 

592 

560 

572

Apr.

566 

579 

566 

522 

540

865 

969 

1,140 

962 

812

752 

745 

858 

752 

717

710 

696 

717 

731 

760.

798 

820 

775 

724 

689

682 

689 

654 

605 

586

Secondfoot-days

2,919 

3,531 

3,451

81,859

9,196 

22,318 

15,954 

21,981 

15,130 

6,956 

3,900 

3,616 

3,472

112,424

May

668 

689 

612 

560 

546

534 

498 

469 

469 

463

446 

469 

480 

504 

522

516 

516 

504 

480 

480

469 

480 

480 

474 

463

435 

413 

403 

376 

361 

351

Maximum

108 

278 

178

2,120

886 

3,800 

943 

1,140 

689 

337 

162 

144 

138

3,800

June

337 

318 

304 

277 

277

269 

269 

256 

252 

236

252 

244 

244 

265 

248

248 

218 

206 

206 

199

192 

189 

189 

189 

189

185 

179 

179 

172 

168

July

162 

156 

159 

156 

 147

147 

141 

135 

122 

153

122 

132 

141 

127 

119

113 

119 

122 

122 

119

124 

106 

89 

124 

94

106 

113 

108 

103 

103 

116

Minimum

1 87 

87 

87

58

87 

155 

300 

522 

351 

168 

89 

98 

98

87

Aug.

Ill 

127 

124 

144 

127

116 

130 

127 

119 

122

119 

124 

103 

130 

119

116 

116 

106 

111 

98

116 

106 

111 

113 

113

113 

113 

113 

1O8 

108 

113

Mean

94.2 

118 

111

224

297 

797 

515 

.733 

488 

232 

126 

117 

116

308

Sept.

Ill 

113 

1O8 

113 

116

108 

113 

116 

116 

98

132 

119 

122 

116 

116

116 

122 

132 

138 

116

111 

108 

116 

113 

119

113 

116 

111 

108 

116

Runoff In 

acre-feet

5,790 

7,000 

6,840-

162,400

18,240 

44,270 

31,640 

43,600 

30,010 

13,800 

7,740 

7,170 

6,890

223,000

Peak discharge (base, 2,700 sec. -ft.). Feb. 6 (3:30 a.m.) 5,920 sec. -ft.

Creek near Chloo.
FEATHER RIVER BASIN 333

Lake Almanor near Prattville, Calif.

Location. Staff gage, lat. 40°10'30", long. 121°05'25", in NW£ sec. 28, T. 27 N., R. 8 E., 

at outlet tower at dam on North Pork 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 Igvel.

Drainage area. 506 square miles.

Records available. October 1913 to September 1950 (yearly summaries only prior to October 

193U.see water-Supply Paper 881).

Extremes. Maximum contents observed during year, 625,200 acre-feet June 29 (elevation, 

 4,4VS.87 feet); minimum observed, 386,100 acre-feet Nov. 7 (elevation, 4,460.58 feet).

1913-50: 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 allowable upper storage limit). Water is diverted by tunnel to Butt Valley Reservoir for use in Caribou power plant and some is 

released down North Pork Feather River (see following page). Records, including extremes, 

show contents at 12 p.m. interpolated from readings made at 5 p.m., all of which is 

available for diversion to Butt Valley Reservoir except 15,700 acre-feet (below elevation 

4,429 feet) that can only be released down river.

Cooperation. Records of contents, furnished by Pacific Gas & Electric Co., obtained in 

connection with.a Federal Power Commission project.

Contents, in acre-feet, water year October 1949 to September 1950

Day

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

ooJ&O

29"Xf\ ou

31

Oct.

403,700

403,000

401,700

400,100

399,300

398,900

399,600

400,100

400,700

401,600

402,300

403,000 

403,500

404,200

404,800

405,800

405,300

404,100

403,000

402,100

401,000

400,000

399,100

398,000

397,100

396,100

394,800

394,100

393,100

392,500

391,700

Nov.

390,800

389,900

388,900

387,800

386,900

386,200

386,100

387,600

390,400

392,500

393,800

394,700 

395,500

396,400

397 ,500

398,200

399,100

400,000

400,900

401,700

402,400

402,800

401,900

401,000

400,000

398,900

398,000

397,700

397,000

395,200

~

Dec.

395,400

396,100

396,600

397,500

398,900

400,300

401,200

401,900

402,600

403,300

403,900

404,600 

404% 800

403,900

403,000

402,300

402,100

402,300

401,900

401,600

401,900

402,400

403,000

403,700

404,600

405,500

406,500

407,400

408,200

408,900

409,600

Jan.

410,300

411,200

412,800

412,500

411,600

410,300

409,600

409,200

408,500

409,400

411 ,000

410,300 

410,100

410,700

412,800

416,900

418,700

419,800

421,100

422,200

424,400

427,100

430,700

431,800

432,200

432,900

433,300

433,500

433,600

433,800

434,200

Feb.

433,500

432,500

432,500

433,800

436,600

438,400

439,000

440,600

442,100

443,400

444,500

446,000 

447,600

448,900

450,000

450,600

450,000

449,500

448,900

448,400

448,500

450,000

451,500

452,800

453,700

454,900

456,300

457,800

Mar.

459,100

460,500

461,800

463,500

465,000

466,100

467,400

468,900

4*70,800

472,700

474,400

475 ,500 

475,700

475,900

475,700

475,900

475,900

476,300

477,400

478,200

478,800

479,900

480,900

482,200

483,000

483,200

483,000

483, "000

482,800

482,600

482,400

Apr.

482,400

483,000

484,700

486,800

490,100

494,700

497,200

500,300

502,300

504,200

506,200

508,500 

511,100

513,100

515,400

518,400

521,600

523,700

526,500

529,300

532,500

536,100

539,800

543,600

547 ,000

550,300

554,000

557,000

560,100

563,200

Hay

566,900

569,500

571,000

572,200

573,300

574,100

574,500

574,700

575,100

575,500

576,600

577,600 

578,400

580,100

582,400

585,900

589,100

592,900

596,000

599,200

602,400

605,100

607,700

609,600

611,500

613,000

614,500

616,000

617,500

618,800

619,900

June

620,900

621,800

622,600

623,100

623,500

623,900

623,500

623,700

623,700

623,500

623,300

623,100 

622,900

623,100.

623,500

623,700

623,900

623,900

624,200

623,700

623,500

623,300

622,900

622,400

622,200

622,200

623,300

624,600

825,200

625,000

July

624,400

623,700

623,100

622,200

621,100

620,300

619,200

617,900

616,800

616,000

615,300

614,300 

613,600

613,000

611,900

610,900

610,000

607,900

607,400

606,400

605,300

604,300

603,000

601,700

600,200

598,800

597,700

596,600

595,400

594,500

593,500

Aug.

592 , 400

591,200

589,700

588,500

586,800

585,100

584,300

583,200

582,000

580,700

579,500

578,700 

577,600

576,800

575,700

574,700

573,700

572,600

571,800

571,400

570,400

569,100

567 ,500

566,200

565,000

563,800

562,800

561,700

560,900

559,900

558,700

Sept.

557,600

556,600

554,800

553,100

551,700

549,900

548,300

547,000

545,600

544,000

542,200

540,600 

539,200

537,500

536,100

534,900

533,700

532,700

531,700

530,500

529,300

527,900

526,500

525,100

523,700

522,600

521,000

519,600

518,000

516,400

Monthly elevation and contents, water year October 1949 to September 1950

Date

Dec. 31......................

Sept. 30.....................

Elevation 

(feet)t

,461.63

,460.91

,461.91

,463.27

,465.85

4,467.60

Contents 

(acre-feet)

404,600

391,700

409,600

434,200

457,800

482,400

563,200

593,500

558,700 J

516,400

Change in contents 

during month 

(acre-feet)

_

-12,900

4-3,500

-t-14,400

-78,600

+24,600

+23,600

+24,600

+80,800

+56,700

+5,100

-34,800

-42,300

+111,800

t Elevation at 12 p.m. interpolated from 5 p.m. readings.
334 FEATHER RIVER BASIN

North Fork Feather River near Prattville, Calif.

Location. Water-stage, recorder and compound rectangular concrete weir, lat. 40"Id 1 , long.

 I2TTT6', in SWf 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.

Records available. March 1914 to September 1950 (tables of daily discharge for July 1921

 to September 1936 include water diverted through Almanor-Butt Creek tunnel). June 1905

to March 1914 at site near that of Almanor Dam. 

Average discharge.--44 years (1905-10, 1911-50)', 870 second-feet, including diversion

tnrougn Aimanor-Butt Creek tunnel. 

Extremes. Maximum discharge during year, 364 second-feet Sept. 7 (gage height, 3.41 feet);

 minimum, 0.6 second-foot Mar. 1. Extremes do not include diversions through AlmanorButt Creek tunnel.

1905-50: 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 Apr. 15, 16, 1914, at times during January to April 1919, and on 

Apr. 21, 1923.

Remarks. Records excellent. Flow regulated by Lake Almanor beginning in 1913 (see preced-

 Ihg~page). Figures of monthly discharge show total runoff also. Water is diverted for 

power from Lake Almanor through Almanor-Butt tunnel to Butt Creek.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

1.3 0.8 1.9 41 2.6 144 

1.4 5.0 2.0 52 2.8 186 

1.5 9.4 2.1 63 3.0 236 

1.6 15 2.2 76 3.3 326 

1.7 22 2.3 91 3.6 434 

1.8 31 2.4 107

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.1 

7.6 

7.6 

7.6 

7.6

7.6 

7.6 

8.1 

S.5 

8.5

8.5 

9.0 

9.0 

9.4 

9.4

9.0 

9.0 

9.0 

8.5 

8.5

8.5 

8.1 

8.1 

8.1 

8.1

9.0 

10 

10 

9.4 

9.4 

9.4

Nov.

9.4 

9.4 

9.4 

9.4 

10

10 

10 

10 

10 

10

10 

10 

10 

10 

10

10 

9. 

9. 

9. 

9.

9. 

9. 

9. 

9. 

9.4

9.4 

9.4 

9.4 

9.4 

9.4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June

July 

Augu 

Sept

Wa

Dec.

9.4 

9.4 

9.4 

9.4 

9.4

9.4 

9.4 

9.4 

9.4 

9.4

9.4 

9.4 

9.4 

9.4 

9.4

9.4 

9.4 

9.4 

9.4 

10

10 

10 

10 

10 

10

10 

10 

10 

10 

10 

10

Jan.

10 

1O 

10 

11

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

12 

12 

12 

12 

12

Feb.

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

11 

11 , 

11

11 

10 

9.4 

9.4 

9.4

9.4 

9.4 

9.4 

9.4 

9.4

9.0 

9.4 

8.5

Mar.

2.1 

5.9 

6.3 

6.8 

7.2

3.3 

3.3 

4.2 

4.2 

4.2

4.2 

3.7 

3.3 

3.7 

3.7

3.3 

3.7 

3.7 

4.2 

4.2

4.2 

5.0 

4.6 

3.7 

3.7

3.7 

3.7 

3.7 

3.7 

3.7 

4.2

Observed

foot-days "«*»« Minimum

mber. .............. 2

mber. ...........--- 2

lender year 1949 

ary

56.2 10 7.6 

39.2 10 9.4 

98. 6 10 9.4

.. 43,555.2 870 .5

*

1 4

ember. ............. 7,6

13 12 10 

30.1 12 8.5 

29.1 7.2 2.1 

L4.1 18 4.6 

35 44 30 

30 38 36 

52 198 34 

55 198 35 

31 360 110

ter year 1949-50 ..15,943.3 360 2.1

Apr.

4.6 

5.4 

7.6 

11 

10

11 

10 

9.4 

9.0 

9.0

9.0 

8.1 

13 

18 

17

17 

17 

17 

17 

17

17 

17 

18 

18 

18

18 

18 

18 

IS 

17

May

30 

44 

44 

44 

43

43 

40 

37 

37 

37

38 

38 

39 

39 

39

39 

38 

38 

38 

38

38 

38 

38 

38 

37

37 

37 

37 

37 

37 

38

Runoff in 

n*an acre-feet

S.59 528 

9.64 574 

9.63 592

119 86,390

11.1 680 

10.7 595 

4.16 256 

13.8 821 

38.6 2,370 

36.7 2, ISO 

59.1 3,630 

67.6 4,160 

256 15,240

43.7 31,630

June

37 

37 

38 

37 

37

37 

37 

36 

36 

36

36 

36 

37 

37 

37

36 

37 

37 

37 

37

36 

36 

37 

37 

37

37 

37 

36 

36 

36

July

36 

36 

36 

37 

37

37 

37 

37 

37 

36

36 

36 

36 

35

35

35 

35 

35 

54 

102

131 

19S 

198 

198 

93

35 

34

35 

35 

35 

35

Diversion

acre-feett

34,980 

26,250 

14,610

| 433,600

23,250 

20,460 

32,000 

6,050 

42,900 

49,780 

i 57,310 

57,510 

I 55,280

420,400

Aug.

35 

61 

198 

19S 

198

90 

37 

36 

36 

36

71 

105 

83 

40 

40

40 

39 

39 

39 

39

39 

38 

80 

101 

68

40 

40 

40 

40 

85 

64

Sept.

110 

200 

200 

215 

304

323 

346 

360 

346 

320

320 

304 

279 

276 

276

276 

276 

233 

210 

210

208 

205 

205 

203 

200

200 

200 

250 

313 

313

Adjusted for 

diversion

Mean

578 

451 

248

711

389 

379 

524 

116 

737 

874 

991 

1,003 

1,185

625

Runoff in 

acre-feet

35,510 

26,820 

15,200

515,000

23,930 

21,060 

32,260 

6,870 

45,270 

51,960 

60,940 

61,670 

70,520

452,000

t Diversion through Almanor-Butt Creek tunnel, computed as difference in flow between the 2 stations on Butt Creek. There is some unmeasured inflow between the 2 stations.
FEATHER RIVER BASIN 335

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.

 5 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.

Records available.--October 1939 to September 1950. February 1911 to August 1930 and Oc-

 tober 1931 to September 1937 at site 0.8 mile upstream.

Average discharge. 34 years (1911-12, 1913-20, 1921-30, 1931-37, 1939-50), 2,656 secondreet. 

Extremes.--Maximum discharge during year, 16,700 second-feet Feb. 6 (gage height, 14.34

 i'eet); minimum, 336 second-feet Nov. 25.

1911-37, 1939-50: 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 Oct. 31, 1932.

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

 Flow regulated by Lake Almanor (see p. 333), Bucks Creek Reservoir (see p. 342), Butt

Valley Reservoir, power plants, and diversions. 

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

 in connection with a Federal Power Commission project. 

Revisions (water years).--W 931: 1940.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.4 470 4.0 1,650 10.0 8,550 

1.7 558 5.0 2,320 12.0 12,100 

2.1 695 6.0 3,160 13.2 14,400 

2.5 855 7.0 4,210 

3.0 1,090 8.0 5,450

Discharge, In second-feet, water year October 1949 to Septenber 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

783 

914 

778 

981 

803

804 

968 

831 

759 

846

731 

786 

847 

695 

847

735 

854 

1,030 

1,230 

1,160

1,030 

960 

1,070 

900 

1,040

860 

955 

833 

900 

945 

936

Mov.

976 

1,230 

1,020 

900 

763

723 

639 

1,190 

1,760 

1,260

807 

890 

882 

843 

831

900 

880 

815 

699 

660

906 

1,040 

870 

777 

764

760 

519 

724 

626 

625

Dec.

771 

687 

565 

500 

984

1,160 

1,150 

1,080 

1,050 

887

721 

1,010 

1,090 

1,320 

1,210

1,020 

705 

764 

878 

1,100

979 

776 

732 

684 

492

700 

850 

581 

739 

961 

787

Jan.

JB87 

811 

1,170 

1,220 

1,220

1,150 

1,150 

863 

894 

1,610

1,180 

1,040 

1,090 

1,070 

938

1,650 

2,440 

3,540 

2,810 

2,160

4,010 

5,870 

7,150 

5,990 

4,380

3,410 

2,830 

2,300 

1,370 

1,960 

2,070

Feb.

1,880 

1,800 

1,770 

4,970 

9,910

14,400 

8,550 

5,790 

4,600 

4,390

4,040 

2,830 

3,330 

2,660 

2,810

3,230 

3,130 

2,810 

a2,700 

a2,570

3,370 

3,020 

2,540 

3,120 

2,630

3,000 

3,200 

3,600

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Knv

June 

July 

Augu 

Sept

Ha

mber. ..... ..---- ----- ------------

lendar year 194S

gnbcx* * 

ter year 1949-50 .......................

Mar.

3,890 

3,350 

3,470 

3,570 

3,840

3,750 

3,680 

3,300 

2,880 

3,100

3,260 

2,080 

2,900 

2,880 

2,080

2,070 

3,700 

3,980 

4,500 

5,900

4,980 

6,320 

6,010 

6,340 

5,830

4,940 

4,630 

4,420 

4,230 

4,160 

3,860

Apr.

3, 

4, 

4, 

4, 

4,

6, 

6, 

6, 

5, 

4,

4, 

4, 

6, 

5, 

5,

4, 

5, 

5, 

6, 

6,

6, 

6, 

6, 

6, 

5,

5, 

5, 

5, 

4, 

4,

Secondfoot-days

27,811 

26,479 

26,933

682,483

70,033 

112,650 

123,900 

163,900 

140,210 

67,750 

50,290 

49,080 

49,920

908,956

990 

560 

890 

660 

630

190 

040 

000 

040 

980

600 

500 

010 

830 

120

790 

350 

870 

020 

370

780 

940 

760 

400 

930

530 

520 

360 

780 

460

May

4,850 

4,930 

4,600 

4,140 

4,040

4,030 

3,920 

3,430 

3,620 

3,880

4,190 

4,490 

4,790 

4,460 

4,750

5,000 

5,220 

5,070 

4,980 

4,600

4,600 

4,550 

5,100 

5,190 

5,050

4,800 

4,610 

4,290 

4,320 

4,400 

4,310

Maximum

1,230 

1,760 

1,320

5,870

7,150 

14,400 ' 

6,340 

6,940 

5,220 

4,230 

1,780 

1,690 

1,960

14,400

June

. 4,230 

3,910 

3,900 

3., 160 

3,350

2,640 

2,720 

2,570 

2,430 

2,430

2,050 

2,200 

2,330 

2,300 

1,910

2,140 

1,540 

1,720 

2,120 

2,000

1,890 

1,730 

1,900 

1,290 

1,280

1,770 

1,480 

1,660 

1,600 

1,500

July

1,440 

1,440 

1,440 

1,460 

1,520

1,580 

1,580 

1,520 

1,590 

1,650

1,610 

1,780 

1,700 

1,630 

1,680

1,610 

1,650 

1,690 

1,660 

1,690

1,700 

1,680 

1,640 

1,610 

1,700

1,640 

1,650 

1,670 

1,660 

1,700 

1,720

Aug.

1,600 

1,570 

1,690 

1,670 

1,630

1,640 

1,640 

1,640 

1,650 

1,630

1,660 

1,620 

1,590 

1,590 

1,560

1,600 

'1,590 

1,590 

1,600 

1,410

1,600 

1,540 

1,540 

1,630 

1,630

1,590 

1,470 

1,520 

1,500 

1,550 

1,340

Minima Mean

695 897 

519 883 

492 869

492 1,870

687 2,259 

1,770 4,023 

2,070 3,997 

3,990 5,463 

3,430 4,523 

1,280 2,258 

1,440 1,622 

1,340 1,583 

1,360 1,664

492 2,490

Sept.

1,500 

1,530 

1,490 

1,460 

1,650

1,360 

1,360 

1,360 

1,360 

1,400

1,820 

1,950 

1,840 

1,950 

1,900

1,960 

1,590 

1,840 

1,960 

1,820

1,610 

1,730 

1,510 

1,650 

1,710

1,780 

1,710 

1,390 

1,810 

1,920

Runoff In 

acre-feet

55,160 

52,520 

53,420

1,554,000

138,900 

223,400 

245,800 

325,100 

278,100 

134,400 

99,750 

97,350 

99,010

"1,803,000

a No gage-height record; discharge computed on basis of unpublished records at Cresta powerhouse.
336 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.

Hecords available. October 1934 to September 1950. January 1902 to September 1934 at 

site at orovule, 5 miles downstream.

Average discharge. 48 years, 5,717 second-feet. ,. -, 

Extremes. Maximum discharge during year, 46,400 secbnd-feet Feb. 6 (gage height, 43. LI

 1'eet); minimum, 422 second-feet Jan. 1 (gage height, 3.31 feet).

1902-34 at Oroville: -Maximum discharge observed, 230,000 second-feet Mar. 19, 1907 

(gage height, 28.2 feet, readings on U. S. Weather Bureau staff gage at bridge, equivalent to 39.3 feet at staff gage at cable 1,000 feet upstream; probably had been higher 

during night); minimum, 300 second-feet (estimated) Nov. 9, 1931 (gage height, -1.7 

feet).

1934-50 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 ty slope-area computation; minimum, 

that of Jan. 1, 1950.

Remarks. Records excellent. Flow partly regulated by power plants and Lake Almanor

 (see p. 333), Bucks (see p. 342), Butt Valley, and smaller reservoirs. 

Revisions (water years). W 881: 1913-28 (published in, summary only).

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

4.0 535 6.2 1,380 11 4.06O 25 16.500 

4.4 705 6.5 1,530 13 5,370 30 22.90O 

4.8 830 6.S 1,650 16 7,62O 35 30.60O 

5.2 970 7.1 1,790 18 9,300 40 40.70O 

5.5 1,080 S.O 2,250 2O 11,200 

5.8 1,200 9.0 3,820 22 13,200

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

927 

1,040 

974 

1,000 

1,040

8S9 

1,040 

1,160 

844 

992

965 

872 

1,030 

933 

915

946 

987 

1,240 

1,290 

1,380

1,130 

1,100 

1,250 

1,040 

1,140

1,060 

1,070 

1,050 

922 

1,130 

1,110

Nov.

1,140 

1,35O 

1,200 

916 

694

850 

996 

1,200 

2,070 

2,540

1,500 

1,200 

1,240 

1,100 

1,160

1,090 

1,140 

1,030 

947 

856

1,150 

1,230 

1,070 

962 

1,030

1,000 

744 

829 

920 

811

Deo.

936 

934 

767 

614 

1,070

1,390 

1,480 

1,280 

1,130 

1,200

958 

1,070 

1,190 

1,510 

1,350

1,550 

1,160 

1,570 

1,590 

1,460

1,150 

1,040 

975 

380 

636

924 

1,010 

746 

902 

1,160 

1,020

Jan.

906 

994 

1,260 

1,420 

1,350

1,370 

1,270 

1,360 

1,180 

2,040

1,830 

1,340 

1,530 

1,510 

1,410

2,800 

7,750 

11,400 

7, ISO 

4,820

8,550 

15,100 

16,300 

14,400 

8,800

6,810 

5,680 

5,390 

3,980 

3,340 

3,610

Feb.

3,470 

3,16O 

2,820 

20,400 

30,200

39,100 

21,300 

14,200 

11,100 

10,200

9.01O 

7,020 

6,770 

6,180 

6,020

6,340 

6,380 

. 5,990 

5,960 

5,78O

6,130 

5,900 

5,670 

5,620 

5,700

6,020 

6,350 

6,990

Month

Ooto 

Novei 

Deoe

Ca

Janu 

Febr 

Haro 

Apri 

Hay.

June 

July 

Augui 

Sept

Wa

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

lendar year 1949 

ary

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

St............. ........................

ter year 1949-50 ...............

liar.

7,230 

6,600 

6,660 

6,850 

7,500

7,480 

6,98O 

6,240 

6,080 

5,560

5,650 

5,000 

4,610 

5,000 

4,450

4,120 

6,240 

7,690 

11,400 

14,300

11,200 

14,300 

13,800 

14,600 

13,700

11,600 

 10,700 

9,810 

9,240 

"8,830 

6,740

Apr.

8,940 

9,780 

10,500 

10,100 

10,000

14,400 

14,400 

14,300 

12,300 

11,700

11,100 

10,600 

13,000 

12,6OO 

11,500

11,000 

11,400 

12,500 

13,100 

13,900

14,9OO 

15,500 

15,400 

14,100 

13,000

12,600 

12,600 

12,300 

11,000 

10,300

Secondfoot-days

32,516 

34,215 

34,152

1,170,107

147,680 

269,830 

262,160 

368,820 

295,510 

124,140 

64,570 

56,170 

57,160

1,746,925

Peak discharge (base, 15,800 sec. -ft.) . Jan. 23 (9 p.

May

10,700 

1O,7OO 

9,970 

8,920 

8,670

8,540 

8,120 

7,320 

7,240 

7,660

3,100 

3,910 

9,660 

1O,1OO 

1O.30O

11,000 

11,000 

11,000 

10,300 

9,750

10,300 

9,920 

10,500 

10,700 

10,500

9,980 

9,510 

10,100 

3,650 

8,810 

8,580

Maximum

1,380 

2,540 

1,510

12,900

16,300 

39,100 

14,600 

15,500 

11,000 

8,280 

2,230 

1,930 

2,180

39,100

June

8,280 

7,840 

 7,240 

.6,380 

5,940

5,650 

5,110 

4,930 

4,360 

4,400

4,000 

4,240 

4,090 

4,O8O 

3,730

3,690 

3,050 

3,200 

3,520 

3,400

3,260 

3,140 

3,200 

2,480 

2,390

2,750 

31,420 

2)560 

2,480 

2,310

Minimm

844 

744 

614

614

906 

2,820 

4,120 

8,940 

7,240 

2,310 

1,960 

1,670 

. 1,660

614

July

2,230 

2,180 

2,160 

2,120 

2,140

2,190 

2,170 

2,120 

2,120 

2,140

2,170 

2,170 

2,180 

2,140 

2,100

2,080 

2,030 

2,090 

2,060 

2,060

2,030 

2,000 

1,980 

1,980 

1,980

1,980 

1,930 

2,000 

1,980 

1,960 

1,930

Aug.

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1, 

1,

Mean

1,049 

1,140 

1,102

3,206

4,764 

9,637 

6,457 

12,290 

9,533 

4,138 

2,083 

1,812 

1,90S

4,786

n.) 21,400 sec. -ft.} Feb. 6 (7 a.

S9O 

390 

930 

920 

9.20

920 

900 

900 

880 

830

890 

860 

850 

840 

S1O

780 

320 

730 

760 

760

720 

730 

700 

780 

800

780 

740 

700 

69O 

670 

680

Sept.

1,710 

1,690 

1,690 

1,660 

1,760

1,630 

1,660 

1,700 

2,070 

1,770

2,000 

2,170 

2,060 

2,160 

2,100

2,170 

1,340 

 2,020 

2,150 

2,, 120

1,780 

2,000 

1,670 

1,760 

1,810

2,020 

1,860 

1,860 

2,040 

2,180

Runoff in 

ao re-feet

64,490 

67,860 

67,740

2,321,000

292,900 

535,200 

i 520,000 

731,500 

586,100 

246,200 

128,100 

111,400 

113,400

3,465,000

B.) 46,400
FEATHER RIVER BASIN 337

Feather River at Nicolaus, Calif. i

Location. Water-stage recorder, lat. 38°54 I 00", long. 121°35'05", at Nicolaus, Sutter 

county, 0.4 mile downstream from highway bridge. Zero of gage is set to datum of 

Corps of Engineers.

Records available. June 1921 to December 1942 (low-water periods only) and April 1943

 to September 1950 in reports of Geological Survey. 1939-50 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes. Maximum discharge during year, 78,300 second-feet Feb. 7 (gage height, 43.82

 feet); minimum, 196 second-feet Sept. 7 (gage height, 20.01 feet).

1943-50: Maximum discharge, 94,000 second-feet Dec. 30, 1945 (gage height, 45.23 

feet).

1921-50: 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, 

wnicn are fair. Flow partly regulated by reservoirs and power plants. Many diversions 

above station for irrigation. See "Remarks" for Feather River near Oroville.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

30

21 

22 

23

24 

25

26 

27

28 

29 

30 

31

Oct.

738 

776 

639 

657 

621

663 

633 

573 

663 

731

597 

639 

621 

519 

555

495 

43S 

436 

395 

603

790 

848 

757 

675 

776

669 

693 

712 

718 

663 

5S5

Nov.

675 

687 

796 

977 

874

705 

609 

573 

639 

1,280

2,930 

2,490 

2,110 

2,050 

1,930

1,960 

1,900 

1,920 

1,800 

1,490

1,270 

1,350 

1,650 

1,570 

1,430

1,330 

1,270 

1,270 

1,050 

1,290

Dec.

1,200 

1,130 

1,290 

1,170 

1,070

1,060 

1,560 

1,820 

1,860 

1,410

1,330 

1,120 

1,100 

1,350 

1,590

1,820 

1,730 

2,000 

2,180 

2,100

1,900 

1,600 

- 1,490 

1,280 

1,050

1,040 

874 

1,030 

928 

848 

998

Jan.

1,090 

1,050 

92S 

1,200 

1,690

1,750 

1,920 

2,100 

2,290 

2,080

2,690 

3,120 

2,540 

2,590 

3,000

2,610 

S,620 

19,700 

21,200 

C14.900

C10.100 

15,500 

22,600 

26,000 

24,200

17,100 

11,900 

all, 600 

a!2,000 

9,010 

7,570

Feb.

6.8OO 

6,180 

5,710 

10,000 

36,700

63,800 

72,400 

048,000 

029,900 

021,000

020,000 

017,300 

Cl3,900 

012,700 

ell, 500

cll.OOO 

011,400 

011,300 

10,800 

10,400

10,200 

10,300 

9,960 

9,520 

9,400

9,520 

9,860 

10,300

Month

Goto 

Hove 

Deee!

Ca

Janu 

Pebr 

Marc

Aprl

VtStv

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 1949

ter year 1949-50 .......................

Mar.

10,900 

11,000 

10,400 

1O,400 

1O,500

11,300 

11,300 

10,600 

9,720 

9,240

8,740 

8,710 

7,880 

7,380 

7,560

7,160 

6,980 

9,830 

11,900 

19,400

20,900 

18,800 

20,500 

23,000 

28,300

26,600 

22,500 

19,600 

17,600 

16,200 

15,400

Apr.

15,300 

15,400 

16,000 

16,700 

16,500

16,300 

20,700 

23,000 

24,300 

21,900

19,500 

17,900 

17,200 

19,400 

19,300

17,800 

16,900 

17,000 

17,600 

13,100

19,000 

20,100 

20,800 

20,800 

19,600

18,200 

17,600 

17,600 

17,100 

15,500

Secondfoot-days

19,S8O 

41,375 

42,908

1,508,046

264,648 

509,850 

430,300 

553,400 

421,560 

164,310 

20,315 

9,391 

34,723

2,513,160

May

14,200 

15,000 

15,000 

13,400 

11,900

11,500 

11,000 

10,300 

. 9,040 

8,500

8,740 

9,380 

10,800 

12,300 

13,500

14,800 

15,900 

16,300 

16,000 

15,500

15,200 

15,800 

16,100 

16,400 

16,700

16,200 

14,900 

13,900 

15,800 

13,500 

14,000

Maximum

348 

2,930 

2,180

25,000

26,000 

72,400 

28,300 

24,300 

16,700 

14,700 

1,570 

429 

1,860

72,400

June

14,700 

13,700 

12,500 

11,600 

9,980

3,790 

7,890 

6,710 

5,840 

4,940

4,600 

4,430 

4,690 

4,280 

4,140

4,010 

3,900 

3,790 

3,560 

3,530

3,690 

3,740 

3,510 

3,260 

2,770

2,280 

1,930 

1,990 

1,770 

1,740

July

1,570 

1,430 

1,340 

1,220 

1,080

973 

875 

827 

775 

723

650 

590 

530 

504 

489

489 

474 

464 

414 

364

564 

359, 

349 

374 

419

449 

449 

444 

439 

434 

434

Minimum

395 

573 

848

129

928 

5,710 

6,980 

15,300 

8,500 

1,740 

549 

233 

200

200

Aug.

429 

409 

409 

359 

339

329 

315 

262 

238 

267

281 

286 

291 

286 

272

272 

 276 

872 

272 

291

276 

262 

252 

233 

252

267 

272 

315 

344 

414 

349

Mean

641 

1,396 

1,384

4,132

8,537 

18,209 

13,881 

18,447 

13,599 

5,477 

655 

303 

1,157

6,835

Sept.

300 

281 

281 

272 

233

200 

200 

262 

454 

730

1,070 

1,080 

1,470 

1,570 

1,750

1,730 

1,860 

1,850 

1,780 

1,800

1,S40 

1,580 

1,630 

1,580 

1,390

1,380 

1,540 

1,480 

1,520 

1,620

Runoff In 

acre-feet

39,430 

83,060 

85,110

2,991,000

524,900 

1,011,000 

853,500 

1, '098, 000 

836,200 

325,900 

40,290 

18,630 

68,870

4,935,000

a No gage-height recordj discharge c.omputed on basis of records for stations on nearby streams, 

e Backwater from Sacramento River; discharge computed by flood-routing methods.
338 FEATHER RIVER BASIN

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

Location. Water-stage recorder, lat. 40-11', long. 121-11', in NW£ sec. 22, T 27 N R 

<i °"d . mllej.upstream from outlet of tunnel from Lake Almanor to Butt Creek and 2.2 

miles southwest of Prattville. Altitude of gage, about 4,400 feet (from .topographic

Drainage area. 67.0 square miles.

Kecoras available. November 1948 to September 1950. October 1936 to September 1937 Octooer iyaa to October 1948 at site 1.5 miles upstream 

Average discharge. 13 years (1936-37, 1938-50), 63.9 second-feet. 

Extremes. Maximum discharge during year, 334 second-feet Mar. 19 (gage height 2 63 feet)-

minimum, 14 second-feet Dec. 11.

«; 7R 9?!l?? 'o^38 " 5S : ^ M**1? discharge, 1,500 second-feet Feb. 28, 1940 (gage height, 

5.75 feet, site and datum then in use); minimum, 3.2 second-feet Dec. 11 1936 

Remarks --Records good. No storage above station. Wallack ditch, above station, occasionaily diverts several second-feet into Yellow Creek Basin.

Cooperation. Water-stage recorder graph, furnished by the Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Aug. 2 to Sept. 30).

0.9 18 1.6 79 

1.0 23 1.8 111 

1.1 29 2.0 151 

1.2 36 2.2 199 

1.4 55 2.5 290

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

23 

23 

22 

22 

22

23 

27 

25 

25 

27

25 

25 

24 

24 

24

24 

24 

24 

24 

25

25 

25 

25 

25 

24

25 

26 

26 

26 

26 

26

Nov.

26 

26 

26 

26 

26

26 

27 

26 

44 

46

35 

31 

30 

29 

28

28 

28 

28 

27 

27

27 

27 

27 

27 

27

27 

27 

30 

28 

27

Dec.

27 

27 

27 

27 

30

29 

29 

28 

27 

25

20 

25 

25 

28 

28

27 

28 

28 

23 

22

27 

28 

29 

28 

25

27 

27 

28 

28 

28 

24

Jan.

27 

30 

27 

29 

30

2S 

28 

28 

28 

32

28 

31 

33 

31 

24

29 

34 

56 

74 

75

75 

138 

156 

112 

62

55 

60 

52 

38 

43 

41

Feb.

40 

40 

40 

40 

42

118 

128 

82 

69 

65

57 

58 

53

51 

51

54 

54 

54 

55 

53

52 

52 

52 

54 

62

66 

72 

74

Month

Goto 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

. Wa

lendar year 194 J.......................

ter year 1949-50 .......................

Peak discharge (base, 220 sec. -ft.). Mar

ft.; Apr. 6 (6 a.m.) 315 sec. -ft. j Apr. 21

Mar.

74 

78 

79 

86 

96

82 

72 

67 

64 

60

57 

52 

53 

52

51

54 

106 

102 

198 

200

143 

223 

169 

143 

119

102 

91 

86 

84 

90 

108

Apr.

134 

167 

176 

165 

176

264 

194 

165 

140 

130

132 

140 

165 

143 

147

167 

186 

213 

219 

245

277 

287 

264 

236 

219

219 

218 

205 

184 

176

Secondfoot-days

761 

866 

829

16,666

1,534 

1,688 

3,041 

5,753 

4,732 

1,827 

922 

790 

809

23,552

May

194 

174 

156 

143 

140

130 

119 

111 

111 

119

128 

138 

160 

179 

186

192 

194 

179 

169 

162

167 

172 

176 

176 

167

153 

145 

136 

124 

119 

113

Maximum

27 

46 

30

224

156 

128 

223 

287 

194 

106 

37 

27 

30

287

June

106 

97 

90 

84 

79

76 

75 

70 

65 

63

62 

62 

60 

74 

63

59 

56 

54 

51 

49

48 

45 

45 

48 

45

43 

41 

40 

39 

38

July

37 

36 

35 

32 

32

32 

32 

31

31 

31

31 

30 

30 

29 

29

2S 

28 

29 

28 

28

28 

28 

28 

28 

28

28 

27 

27 

27 

27 

27

Aug.

27 

27 

27 

27 

27

27 

26 

26 

26 

26

26 

26 

26 

25 

25

25 

25 

25 

25 

25

25 

25 

25 

25 

25

25 

25 

24 

24 

24 

24

Sept.

24 

24 

24 

24 

24

24 

25 

28 

27 

27

26 

26 

27 

26 

26

28 

29 

30 

30 

28

27 

27 

28 

28 

28

29 

29 

29 

28 

29

Minimum Mean ^'^In

22 24.5 1,510 

26 28.9 1,720 

20 26.7 1,640

19 45.7 33,050

24 49.5 3,040 

40 60.3 3,350 

51 98.1 ' 6,030 

130 192 11,410 

111 153 9,390 

38 60.9 3,620 

27 29.7 1,830 

24 25.5 1,570 

24 27.0 1,600

20 /64.5 | 46,710

19 (7 p.m.) 334 sec. -ft; Mar. 22 (10:30 a.m.) 267 sec.- 

10 p.m.) 315 sec. -ft.
FEATHER RIVER BASIN 339

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

Location.--Water-stage recorder and concrete control, lat. 40°11', long. 121°11', in NWi

 Sec. 22, T. 27 N., R. 7 E., 400 feet downstream from outlet of tunnel from Lake Almanor 

to Butt Creek and 2.2 miles southwest of Prattville. Altitude of gage, about 4,400 

feet (from topographic map).

Drainage area. 67.3 square miles.

Records available.--October 1938 to September 1950.

Average discharge.--12 years, 703 second-feet.

Extremes.--Maximum discharge during year, 1,180 second-feet Mar. 19 (gage height, 3.24

 feet); minimum, 45 second-feet Oct. 13-16.

1938-50: Maximum discharge, 2,170 second-feet Mar. 30, 1940 (gage height, 4.37 

feet); minimum, 34 second-feet Mar. 24, 1948.

Remarks.--Records excellent. Difference in flow at this station and at station above

 Eunriel (see preceding page) shows amount of diversion from Lake Almanor to Butt Creek 

and Butt Valley Reservoir plus natural local inflow from 0.3 square mile of intervening 

drainage area.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

 in connection with a Federal Power Commission project.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1-5 Oct. 6 to Sept. 30

2.8 905 0.5 38 1.3 196 

.6 49 1.6 296 

.7 62 2.0 464 

.8 77 2.6 770 

1.0- 118 5.2 1,150

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

U 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

 90S 

905 

905 

905 

905

531 

50 

47 

46 

47

47 

46 

46 

45 

45

45 

485 

888 

888 

888

888 

888 

888 

888 

882

882 

882 

882 

882 

882 

882

Nov.*

882 

882 

882 

882 

882

882 

534 

52 

64 

65

54 

49 

48 

47 

46

47 

47 

46 

46 

46

47 

515 

882 

882 

882

882 

882 

882 

882 

882

Dec.

531 

64 

61 

61 

64

64 

64 

62 

62 

61

57 

61 

526 

876 

882

882 

882 

882 

876 

565

 57 

57 

57 

56 

54

56 

54 

56 

56 

54 

53

Jan.

52 

53 

49 

467 

864

870 

870 

870 

870 

870

864 

870 

474 

54 

52

56 

58 

74 

90 

92

92 

147 

163 

126 

81

74 

500 

894 

882 

888 

888

Feb.

888 

888 

888 

894 

907

963 

677 

107 

90 

85

79 

74 

72 

72 

,72

533 

888 

894 

894 

894

550 

77 

77 

77 

85

88 

94 

96

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

ter year 1949-50 .......................

Mar.

96 

98 

109 

96 

103

90 

83 

79 

74 

74

71 

67 

534 

9OO 

907

913 

963 

956 

1,050 

1,O5O

1,000 

1,070 

1,030 

995 

982

97O 

956 

956 

956 

963 

982

Apr.

1,000 

1,040 

7O2 

193 

205

30O 

221 

188 

168 

160

158 

163 

188 

165 

171

190 

212 

237 

234 

278

311 

330 

304 

271 

253

253 

253 

237 

215 

2O5.

Secondfoot-days

18,395 

14, 101 

8,193

232,737

13,254 

12,003 

19,173 

8,805 

26,359 

26,926 

29,818 

29,783 

28,680

235,490

May

714 

1,070 

1,050 

1,O*O 

1,O3O

1,020 

1,020 

1,010 

1,010 

1,020

1,030 

1,040 

1,060 

1,080 

765

227 

227 

215 

205 

193

2O2 

561 

1,090 

1,090 

1,090

1,O7O 

1,070 

1.O6O 

1,040 

1,030 

1,030

Maximum

905 

882 

882

1,090

894 

963 

1,070 

1,040 

1,090 

1,030 

963 

970 

963

1,090

June

1,030 

1,020 

1,020 

1,010 

l.OOO

996 

996 

989 

989 

989

989 

989 

982 

996 

982

976 

976 

976 

976 

970

970 

970 

970 

970 

970

563 

76 

71 

552 

963

July

963 

963 

963 

963 

963

963 

963 

963 

963 

963

963 

965 

965 

963 

963

963 

963 

963 

963 

963 

963 

965 

965 

963 

963

963 

956 

956 

956 

956 

956

Aug.

956 

956 

956 

956 

956

956 

956 

956 

956 

956

956 

956 

956 

956 

956

956 

956 

963 

963 

963

963 

963 

963 

970 

970

970 

970 

970 

970 

870 

963

Minimum Mean

45 593 

46 470 

53 264

45 638

49 428 

72 429 

67 618 

158 294 

193 850 

71 898 

956 962 

956 961 

950 956

45 645

Sept.

963 

963 

963 

963 

963

963 

956 

956 

956 

956

956 

956 

956 

956 

956

956 

956 

956 

956 

950

950 

950 

950 

950 

950

 950 

956 

956 

956 

956

Runoff in 

acre-feet

36,490 

27,970 

16,250

461,600

26,290 . 

23,810 

38,030 

17,460 

5E.280 

53,410 

59,140 

59,070 

56,890

467,100
340 FEATHER RIVER BASIN

Indian Creek near Crescent Mills, Calif.

Location.--Water-stage recorder, lat. 40°05', long. 120°56', in SWv sec. 25, T. 26 N., R. 

 9 E.., 0.8 mile upstream from Dixie Creek and 1.5 miles south of town of Crescent Mills. 

Altitude of gage, about 3,500 feet (from topographic map).

Drainage area.--746 square miles.

Records available.--October 1930 to September 1950. January 1906 to December 1909 and 

September 1911 to March 1918 at site 800 feet upstream.

Average discharge.--29 years (1906-9, 1911-17, 1930-50), 499 second-feet.

Extremes. Maximum discharge during year, 2,920 second-feet Feb. 6 (gage height, 8.22 

reet); minimum, 3.2 second-feet Aug. 31, Sept. 7, 10.

1906-9, 1911-18. 1930-50: Maximum discharge, 14,000 second-feet Feb. 28, 1940 (gage 

height, 16.07 feet), from rating curve extended above 4,000 second-feet by Idgarithmic 

plotting; minimum, 1.7 second-feet, Aug. 25, 1931.

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

Diversions above station for irrigation in Indian and Genesee valleys.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1 to Jan. 17, June 27 to Aug. 22)

1.2 3.8 2.2 58 4.5 505 

1.3 5.7 2.5 90 5.0 705 

1.4 8.6 2.8 12S 6.0 1,220 

1.6 16 3.2 188 7.0 1,900 

1.8 26 3.6 258 8.0 2,720 

2.0 41 4.0 350

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

15 

14 

12 

13 

14

9.2 

7.0 

7.6 

8.9 

12

11 

13 

12 

13 

12

12

11 

11 

11 

12

15 

15 

18 

20 

21

27 

28 

27 

27 

26 

28

Nov.

27 

27 

26 

26 

25

27 

28 

34 

95 

162

108 

83 

74 

67 

66

66 

65 

61 

60 

59

59 

58 

59 

60 

60

59 

58 

59 

59 

60

Dec.

59 

59 

59 

57 

54

65 

57 

56 

54 

54

49 

42 

45 

50 

54

55 

64 

88 

91 

59

47 

49 

54 

57 

55

50 

49 

50 

53 

56 

54

Jan.

51 

54 

43 

47 

44

44 

44 

48 

47 

51

42 

48 

55 

47 

51

69 

220 

480 

345 

371

712 

1,030 

1,330 

1,330 

971

602 

448 

387 

298 

248 

219

Feb.

188 

172 

172 

522 

1,360

2,610 

2,200 

1,700 

1,300 

1,000

800 

600 

500 

450 

400

400 

450 

450 

450 

450

450 

430 

400 

400 

420

500 

750 

800

Month

Octo 

Hove 

Decei

Ca

Janu 

Febr 

Marc 

Aprl

MAT

June 

July 

Augu 

Sept

Wa

liber. ........... -^ - --....-..--...----.-

lendar year 194S 

Etry

h. ......................................

Mar.

825 

820 

775 

770 

741

815 

785 

700 

615 

530

503 

454 

423 

399 

. 384

372 

460 

607 

845 

1,280

1,440 

1,450 

1,700 

1,750 

1,610

1,360 

1,160 

1,030 

990 

980 

1,010

Apr.

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

2, 

1, 

1,

1, 

1, 

1,

1, 

1,

Secondfoot -day s

482.7 

1,777 

 1,745

76,604.6

9,776 

20,324 

27,588 

46,940 

29,220 

7,180 

775.4 

270.4 

423.2.

146,501.7

Peak discharge (base. 1.100 sec. -ft.). Jan. 23 (2 a.a

130 

290 

470 

540 

450

540 

810 

940 

760 

640

540 

470 

560 

690 

570

450 

470 

560 

590 

640

790 

980 

050 

860 

600

440 

380 

350 

240 

140

Hay

1,130 

1,160 

1,150 

1,110 

1,030

1,020 

965 

885 

820 

805

835 

885 

955 

1,040 

1,120

1,150 

1,160 

1,140 

1,070 

990

950 

850 

925 

905 

895

850 

770 

723 

660 

607 

575

Maximum

28 

162 

91

1,480

1,330 

2,610 

1,750 

2,050 

1,160 

540 

46 

13 

25

2,610

June

540 

502 

438 

402 

364

340 

300 

280 

258 

239

250 

276 

258 

268 

255

237 

225 

212 

196 

175

164 

150 

138 

135 

134

124 

118 

102 

54 

46

July

39 

38 

39 

41 

46

42 

36 

35 

32 

32

33 

32 

30 

.27 

25

25 

24 

21 

19 

19

17 

14 

16 

16 

15

16 

13 

7.6 

6.2 

8.6 

R

Aug.

9.9 

10 

11 

11 

12

13 

13 

11 

9.2 

11

10 

12 

13 

13 

8.9

8.3 

6 

5.7 

5.5 

8.6

11 

5.7 

4.7 

5.7 

6.2

6.2 

3.6 

6.7 

4.6 

4.2 

4.7

Sept.

9.2 

7.6 

8.6 

7.4 

6.2

5.3

4.6 

6.7 

5.1 

5.1

9.2 

9.2 

17 

12 

. 12

13 

13 

16 

17 

19

20 

20 

18 

19 

21

24 

24 

24 

25 

25

U4 n4_.m ibxin RUHOff in Minimum Mean aoretfeet

7.0 15.6 957 

25 59.2 3,520 

 42 56.3 3,460

2.7 210 151,900

42 315 19,390 

172 726 40,310 

372 890 54,720 

1,130 1,565 93,100 

575 943 57,960 

46 239 14,240 

6.2 25.0 1,540 

4.2 8.72 ' ES8 

4.6 14.1 839

4.2 401 290,600

.) 1,440 sec. -ft. 3 Feb. 6 (10 p.m.) 2,920

sec.-ft.; Mar. 24 (6 p.n.) 1,820 sec.-ft.{ Apr. 8 (2 a.m.) 1,970 eec.-ft.j Apr. 14 (12 m.) 1,720 

sec.-ft.} Apr. 23 (I p.n.) 2,080 sec.-ft.) May Z (6:30 p.m.) 1,180 Bee.-ft.} Hay 17 (1 p.n.) 1,170 

sec. -ft. ' . Mote. Ho gage-height record Feb. 7-28j discharge computed on basis of 1 discharge measurement, 

weather records, and records for Spanish Creek at Keddie.
FEATHER RIVER BASIN 341

Spanish Creek at Keddie, Calif.

Location. Water-stage recorder, lat. 40 0 00'05", long. 120 0 57 l 20 n , In NE£ sec. 27, T. 25 

w., K. 9 E., 200 feet upstream from Blackhawk Creek and 0.9 mile southeast of Keddie. 

Altitude of gage, about 3,250 feet (from topographic map).

Drainage area. 184 square miles.

Records available. October 1933 to September 1950. 

site i. a miles downstream.

October 1911 to September 1933 at

Average discharge. 17 years (1933-50), 240 second-feet.

Extremes.--Maximum discharge during year, 3,740 second-feet Feb. 6 (gage height, 6.90 

reet); minimum, 14 second-feet Sept. 7.

1911-50: 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 except those for Dec. 11 to Jan. 15, Jan. 30 to Feb. 3, which are 

rair. Diversion above station for irrigation In American Valley.

Revisions (water years).--W 1041: 1938(M).

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used July 1 to Aug. 26)

1.0 13 1.7 47 2.7 191 4.5 1,180 

1.1 16 1.9 64 2.9 250 5.0 1,680 

1.2 20 2.1 85 3.2 365 5.5 2,180 

1.3 24 2.3 112 3.5 510 6.1 2,820 

1.5 34 2.5 146 4.0 790

Discharge, in eecond-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

. 26 

27 

28 

29 

30 

31

Oct.

25 

24 

27 

24 

24

24 

25 

26 

26 

27

29 

2S 

28 

28 

28

28 

27 

27 

28 

29

30 

30 

30 

30 

30

31 

32 

32 

32 

29 

31

Nov.

32 

32 

32 

33 

34

34 

34 

36 

106 

161

92 

69 

61 

57 

52

50 

49 

47 

46 

45

44

44 

44 

44 

44

44 

43 

43 

43 

43

Dec.

42 

42 

41 

41 

48

49 

46 

45 

44 

44

35 

38 

39 

42 

44

47 

62 

81 

81 

48

47 

47 

52 

59 

51

44 

46 

44 

46 

49 

46

Jan.

43 

49 

33 

43 

40

38 

43 

46 

47 

49

44 

51 

51 

38 

46

65 

120 

446 

305 

194

531 

839 

1,280 

653 

325

244 

184 

163 

142 

130 

126

Feb.

120 

114 

120 

1,710 

2,030

2,730 

919 

540 

392 

370

349 

2S5 

254 

244 

257

325 

345 

333 

341 

349

321 

301 

305 

317 

401

430 

470 

470

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

420 

396 

383 

406 

520

470 

365 

325 

285 

260

237 

213 

199 

191 

184

186 

506 

480 

1,140 

963

626 

1,090 

804 

860 

676

540 

485 

455 

430 

430 

510

Apr.

571 

654 ' 

682 

598 

598

1,070 

1,010 

930 

804 

760

712 

718 

930 

760 

670

682 

742 

772 

772 

818

909 

923 

860 

730 

664

648 

642 

604 

520 

480

Secondfoot-days

869 

1,538 

1,490

50,561

6,408 

15,142 

15,035 

22,233 

13,692 

4,159 

1,295 

724 

750

83,335

Peak discharge (base. 850 sec. -ft.). Jan. 23 (3:30 p.

May

566 

555 

520 

485 

470

460 

401 

378 

383 

410

455 

470 

510 

540 

560

545 

530 

4S5 

440 

430

440 

440 

430 

425 

406

365 

349 

337 

317 

305 

265

Maximum

32 

161 

81

822

 1,280 

2,730 

1,140 

1,070 

566 

271 

67 

30 

33

2,730

June

271 

250 

215 

186 

196

179 

177, 

159 

152 

139

137 

167 

156 

159 

148

139 

128 

126 

122 

112

101 

98 

94 

93 

89i

86 

77 

69 

67 

67

July

67 

65 

61 

57 

56

53 

54 

49 

43 

53

52 

49 

45 

43 

36

34 

37 

32 

32 

35

33 

25 

29 

30 

38

34 

34 

31 

30 

32 

26

Aug.

27 

26 

27 

29 

29

30 

29 

30 

29 

28

28 

27' 

26 

26 

25

24 

24 

24 

22 

23

18 

18 

18 

18 

22

21 

15 

15 

15 

15 

16

Sept.

22 

18 

17 

17 

16

16 

16 

16 

16 

20

25 

28 

29 

23 

27

26 

28 

29 

. 33 

32

32 

32 

30 

30 

29

28 

29 

27 

27 

27

Minimum Mean ^'^in

24 28.0 1,720 

32 51.3 3,050 

35 48.1 2,960

12 139 100,300

3 

11 

18 

48 

28 

6

L 2

1 1

3 207 12,710 

4 541 30,030 

4 485 29,820 

D 741 44,100 

5 442 27,160 

7 139 8,250 

5 41.8 2,570 

5 23.4 1,440 

5 25.0 1,490

15 228 165,300

n.) 1,790 sec. -ft.} Feb. 6 (6 a.m.) 3,740

. . 

(12:30 a.m.) 994 see.-ft.

207481 0-52-23
342 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. 

7HE77 at dam on Bucks Creek, 2 miles northwest of former Bucks Ranch and 15 miles west 

of Quincy. Datum of gage is 5,000 feet above mean sea level (levels by Feather River 

Power Co.); gage readings have been reduced to elevations above mean sea level.

Drainage area.--28 square miles.

Records available. October 1928 to September 1950.

Extremes. Maximum contents during year, 102,800 acre-feet June 14-18 (elevation, 5,155.45 

I'eet); minimum, 58,200 acre-feet Mar. 21 (elevation, 5,128.8 feet).

1928-50: Maximum contents, 105,800 acre-feet June 23, 1938 (elevations, 5,157.1 

feet); minimum, 12,330 acre-feet Feb. 27, 1929 (elevation, 5,090.7 feet).

Remarks. Reservoir is formed by concrete-faefd rock-fill dam completed in 1927; storage 

Eegan 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.

Contents, in acre-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

79,400

79,100

79,000

79,000

73,900

78,800

78,700

78,600

78,500

78,500

78,500

78,500

78,500

78,500

78,500

78,400

78,100

77,900

77,500

77,300

77,100

76,700

76,600

76,500

76,400

76,300

76,200

76,100

76,100

76,000

75,900

Nov.

76,000

75,900

75,900

75,900

75,900

75,900

75,900

75,900

75,900

75,800

75,800

75,800

75,800

75,700

75,700

75,7OO

75,700

75,600

75,600

75,700

75,700

75,700

75,700

75,600

75,400

75,200

74,700

74,700

74,500

74,300

-

Dec.

74,100

73,900

73,800

73,500

73,300

73,100

72,900

72,600

72,500

72,100

72,000

71,600

71,400

71,200

71,000

70,800

70,500

70,400

70,4OO

70,300

70,300

70,300

70,300

70,300

70,3OO

70,200

70,100

70,000

70,000

70,000

69,900

Jftn.

69,300

69,600

69,400

69,100

68,600

68,100

67,600

67,600

67,100

66,800

66,600

66,400

66,100

65,900

65,700

65,700

65,600

65,700

65,900

66,100

66,800

67,200

68,000

68,300

68,500

68,700

68,700

68,400

67,600

67,400

67,900

Feb.

67,200

66,800

66,700

66,900

67,200

67,700

68,100

68,400

68,800

69,200

'69,600

69,900

69,800

69,300

69,100

68,700

68,300

68,000

67,600

67,200

66,800

66,400

66,100

65,700

65,300

65,000

64,600

64,200

_

-

-

Mar.

63,900

63,500

63,200

62,900

62,800

62,400

62,000

61,600

61,300

61,000

60,600

60,300

60,000

59,500

59,100

58,800

58,600

58,400

58,400

58,300

58,200

58,500

58,900

59,400

59,600

59,800

60,000

60,200

60,400

60,500

60,700

Apr.

60,900

61,100

61,400

61,700

62,000

62,700

63,200

63,700

63,900

64,100

64,200

64,600

65,000

65,300

65,600

66,000

66,400

66,800

67,200

67,800

68,400

69,200

69,900

70,400

71,000

71,600

72,400

72,900

73,400

73,900

-

May

74,300

75,500

75,900

76,2OO

76,600

77,000

77,300

77,600

78,000

78,500

79,000

79,500

80,200

81,100

81,900

82,700

83,600

84,400

85,300

86,200

87 ,000

88,100

89,000

90,000

91,100

92,000

93,000

93,900

94,900

95,800

96,700

June

94,500

98,300

98,800

99,400

100,000

100,300

J.00,700

101,100

101,600

101,900

102,400

102,600

102,700

102,800

-02,800

102,800

102,800

102,800

102,700

102,700

102,700

102,700

102,600

102,600

102,600

102,500

102,500

102,500

102,500

102,500

-

July

102,400

102,400

102,300

102,300

102,300

102,300

102,300

102,200

102,200

102,200-

102,100

102,100

102,100

102,100

102,100

102,100"

102,100

101,700

101 ,500

101,200

100,800

100,300

99,700

99,300

99,000

99,000

99,000

99,000

99,000

99,200

98,900

Aug.

98,300

97,800

97,200

96,700

96,100

95,600

95,300

95,100

95,100

95,100

95,100

95,100

95,100

95,100

94,900

94,400

93,800

93,300

92,800

92,400

91,900

91,400

91,200

90,800

90,700

90,300

90,100

89,800

89,100'

88,600

88,100

Sept.

87,700

87,400

87,100

86,900

86,700

86,700

86,500

86,100

85,600

85,100

84,600

84,100

83,600

83,100

82,800

82,500

82,200

ftl.900

81,400

81,200

81,200

81,200

81,200

81,200

81,200

81,000

80,500

80,000

79,500

79,500

Monthly elevation and contents, water year October 1949 to September 1950

'Date

Dot . 31 ....................

Dec . 31 ....................

Peb . 28 ....................

Sept. 30....................

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

Elevation 

(feet)t

5,136.3

5,142.2

Contents 

(acre-feet)

69,900

79,500

Change in contents 

during month 

(acre-feet)

-4,400

-8,600

-200

t Elevation at 12 p.m.
FEATHER RIVER BASIN 343

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 

ET7~at highway bridge, 1.4 miles downstream from Concew Creek and 2 miles west of Yankee 

Hill. Altitude of gage, about 1,100 feet (from topographic map).

Drainage area. 145 square miles.

Kecoras available. September 1930 to September 1950.

Average aiscnarge'. 20 years, 322 second-feet.

Extremes. Maximum discharge during year, 8,040 second-feet Feb. 6 (gage height, 17.05 

reet); minimum, 3.6 second-feet Sept. 7.

1930-50: Maximum discharge, 21,400 second-feet Dec. 11, 1937 (gage height, 30.3 

feet), from rating curve extended above 15,000 second-feet; minimum, 0.3 second-foot 

Jan. 8, 1937 (gage height, 1.69 feet).

Remarks. Records excellent. Spring Valley ditch (see p. 345) 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. 332) for power development in De Sabla and r 

Centerville plants of Pacific Gas & Electric Co. Round Valley Reservoir (capacity, 

1,285 acre-feet) ana-Philbrook Reservoir (capacity, 4,875 acre-feet) provide storage on 

headwaters for these three canals.

Rating tables, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

2.3

2.4

2.5

2.6

1:1 3.0

4.6

7.1

10

14

Oot. 1 to Feb. 4

3.3 

3.6 

4.0 

4.5

61

89

135

216

7.0

8.0

9.0

10.0

930

1,360

1,830

2,390

13.3 4,780%

2.2

2.3 

£.4 

£.6

Feb. 5 to Sept. 30

4.2

6.8

10

19

2.9 

3.2 

3.6 

4.0

36

58

96

148

4.5 225

5.0 322

5.5 439

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.5- 

7.6 

7.4 

7.9 

8.8

8.6 

8.8 

9.1 

9.1 

9.1

9.1" 

8.8 

7.1 

6.8 

7.1

7.9 

7.9 

8.5 

8.8 

9.1

9.4 

9.1 

8.8 

8.2 

7.6

7.6 

7.6 

7.9 

7.4 

7.1 

7.1

Nov.

7.1 

7.1 

6.8 

6.8 

6.8

7.1 

7.4 

8.5 

95 

117

43 

15 

9.4 

8.2 

7.6

7.1 

6.6 

6.3 

6.3 

6.6

6.6 

6.3 

6.6 

6.8 

7.1

7.4 

7.4 

7.1 

7.6 

8.2

Dec.

8.2 

8.8 

7.6 

7.4 

8.5

13 

11 

10 

9.1 

7.9

. 7.9 

7.6 

7.1 

7.1 

8.8

11 

40 

53 

61 

20

10 

9.1 

8.2 

7.6 

7.6

7.1 

6.8 

6.6 

7.1 

7.1 

7.1

Jan.

7.1 

6.8 

7.1 

6.3 

10

12 

11 

19 20 

88

64 

51 

44 

65 

74

200 

1,180 

1,'270 

570 

403

1,340 

1,410 

1,320 

814 

425

284 

235 

331 

229 

188 

155

Feb.

136 

110 

123 

3,780 

4,740

4,700 

1,600 

941 

674 

740

625 

490 

436 

385 

385

419 

402 

376 

376 

360

333 

322 

318 

316 

365

369 

383 

395

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

enber. ..................................

ter year 1949-50 .......................

Peak discharge (base. 1,700 sec. -ft.).-- Js

2,460 sec. -ft.} Feb. 6 (g a.m. J 8.040 see.-ri 

1,950 see. -ft.; Apr. 6 (7:30 a.m.) 2,030 sec

Mar.

383 

390 

378 

397 

474

462 

381 

344 

309 

314

£89 

256 

243 

234 

223

219 

527 

591 

1,390 

1,280

838 

1,350 

1,070 

1,220 

1,090

914 

866 

726 

648 

582 

641

Apr.

684 

733 

744 

677 

747

1,510 

1,330 

1,030 

934 

754

641 

641 

863 

705 

657

708 

747 

810 

882 

990

1,090 

1,160 

1,110 

974 

926

938 

978 

914 

768 

733

Secondfoot -day s

254.0 

456.8 

399.3

64,692.8

10,838.3 

24,599 

19,029 

26,376 

" 20,206 

. 5,423 

421.1 

202.1 

184.4

108,391.0

May

834 

747 

638 

517 

504

495 

459 

426 

414 

459

532 

606 

660 

747 

810

803 

796 

726 

664 

694

758 

775 

789 

782 

772

712 

677 

622 

588 

606 

594

Maximum

9.4 

117 

61

2,160

1,410 

4,740 

1,390 

1,510 

834 

552 

46 

9.3 

20

4,740

June

552 

504 

439 

37S 

356

261 

£17 

190 

184 

174

180 

190 

161 

172 

163

142 

127 

120 

115 

110

102 

89 

78 

72 

63

58 

55 

61 

58 

52

July

46 

37 

26 

23 

21

18 

15 

12 

12 

10

10 

23 

10 

8.7 

8.7

9.0 

8.3 

8.0 

8.0 

7.4

8.0 

7.7 

8.3 

8.7 

8.7

8.3 

9.0 

9.3 

10 

12 

10

Aug.

8.7 

9.3 

7.7 

6.3 

6.6

6.8 

6.3 

5.8 

5.8 

5.8

5.8 

6.0 

8.3 

8.0 

5.5

5.5 

 5.5 

5.8 

6.0 

6.3

6.0 

6.0 

6.0 

6.3 

6.6

7.1 

7.1 

6.6 

6.3 

6.3 

6.0

Sept.

5.8 

5.2 

5.2 

5.2 

5.2

5.0 

5.2 

5.8 

6.0 

6.3

6.0 

6.3 

6.0 

5.S 

5.8

5.5 

5.5 

7.1 

20 

8.7

5.5 

4.8 

4.8 

5.0 

5.2

5.5 

5.8 

5.5 

5.5 

5.2

Minimum Mean ^"^

6.8 8.19 504 

6.3 15.2 906 

6.6 12.9 792

5.1 177 128,300

. 6.3 350 21,500 

110 879 48,790 

219 614 37,740 

641 879 52,320 

414 652 40,060 

52 181 10,760 

7.4 13.6 835 

5.5 6.52 401 

4.8 6.15 368

 4.8 ~ 297 215,000

in. 17 (11:30 p.m.) 2,210 aec. -ft.; Jan. 21 (7 p.m.) , 

t.j Mar. ,19 (4 p.m.) 2,280 sec. -ft. J Bar. 22 (11 a.m.) 

.-ft.
344 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 NEf 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.

Kecorcts available.--October 1927 to September 1950.

Average discharge. 23 years, 26.5 second-feet, combined flow of Concow Creek and Spring 

valley arcch.

Extremes. Maximum discharge during year, 1,050 second-feet Feb. 5 (gage height, 3.24 feet), 

rrom rating curve extended above 160 second-feet by computations of flow over dam; no 

flow most of year.

1927-50: Maximum discharge, 2,060 second-feet Jan. 21, 1943 (gage height, 5.35 feet, 

from floodmark in well), from rating curve extended above 160 second-feet by computations 

of flow over dam; no flow for many months in each year.

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

OfTSept. 30, 1949, storage in Lake Wilenor (capacity, 8,200 acre-feet), was 3,320 acrefeet, and on Sept. 30, 1950, it was 5,450 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.

Revisions (water years). W 931: 1928(M), 1940.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, in second-feet)

0.0 

.1 

.2 

.3 

.4 

.5

.8

4.4

12

24

40

0.6

.7

.8

1.0

1.2

1.4

61

86

113

174

240

310

1.6 

1.8 

2.0 

2.2 

2.5

382

458

536

616

736

Discharge, In second-feet, Mater year October 1949 to September 1950

Day

1 

2 

3

4 

5

6

7e

9 

10

11

12 

13 

14

15

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

O 

0 

0 

alOO 

a700

a650 

174 

136

119 

81

59 

57 

42 

35 

32

35 

33 

27 

25 

23

21 

20 

19 

19 

17

16 

16 

S.4

Month

Oeto 

Move 

Deoe

Ca

Janu 

Pebr 

Hare 

Apr! 

Hay.

June 

July 

Augu 

Sept

Ha

her .

riber. ...........-----.---------- -----

lendar year 194S 

ary

St. ... ^. ................................

ter year 1949-50 .......................

Mar.

2.5 

2.5 

3.9 

3.9 

3.4

2.5 

1.8 

1.8 

1.8 

4.9

9.2 lOt ' 

£.8 

0 

0

0 

0 

25 

al30 

a!3o

59 

68 

74 

a75 

alio

h!30 

hi 19 

h86 

h57 

h!2 

hi 7

Apr.

h!2 

24 

23 

17 

24

106 

134 

164 

100 

84

18 

16 

30 

25 

17

14 

3.4 

2.1 

3.4 

.8

.5 ' 

31 

0 

0 

0

.2 

.2 

.5 

.3

0

Secondfoot -days

0 

0 

0

4,241.8

0 

2,464.4 

1,143.0 

850.4 

7.0 

0 

0 

0 

0

4,464.3

»ay

0 

0 

0 

0 

0

0 

0o 

0 

0

o 

0 

0 

0 

0

0 

0 

.2

1.2

1.8

1.8 

.8 

.1 

0 

0

.3 

 .8 

O 

0 

0 

0

Maximum

0

o 

o

481

O 

700 

130 

164 

1.8 

0 

0 

0 

0

700

June July

Minimum

O 

0 

0

o

. 0 

0

0

o

0 

0 

0 

0

0

0

Aug.

Maan

0

0 

0

11.6

0 

88.0 

36.9 

28.3 

.23 

O 

0 

0

o

12.2

Sept.

Runoff In 

acre-feet

0 

0 

0

8,410

0 

4,890 

2,270 

1,690 

14 

0 

0 

0 

0

S,S60

a No gage-height record; discharge computed on basis of recorded range In stage and weather records . - 

h Computed from staff-gage reading.
FEATHER RIVER BASIN 345 

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 1950. 

Average discharge. 23 years, 10.2 second-feet.

Extremes. Maximum daily discharge during year, 35 second-feet Oct. 17-21; no flow for 

many days.

1927-50: Maximum daily discharge, 49 second-feet Oct. 25-27, 1928; no flow at times 

during most years.

Remarks. Records good except those below 10 second-feet, which are fair.' 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, Hater year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16- 

17 

18 

19 

20

21 

23 

23 

24

25

26 

27 

28 

29

30 

31

Oct.

37 

37 

30 

33 

33

32 

33 

33 

33 

33

28 

26 

28 

31 

33

33 

35 

35 

35 

35

35 

33 

30 

29 

29

29 

39 

29 

29 

29 

29

Mov.

39 

39 

27 

26 

27

38 

29 

27 

7.3 

0

0 

O 

15 

21 

16

io

10 

15 

18 

16

15 

15 

15

16 

16

ISIS 

17 

17 

17

Dec.

16 

16 

16 

18 

18

9.8 

6.3 

6.3 

13 

17

19 

19 

19 

19

11

4.0 

1.3 

O 

0 

0

o

7.1 

9.3 - 10

10

11 

14 

15 

15 

14 

11

Jan.

10 

9.7 

9.7 

14 

18

18 

19 

15 

9.7 

4.2

. - 4

Feb.

0.4 

.2

0

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Hare 

Apr! 

May

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 194 

ary

ter year 1949-50 ............... v ......

Mar.

0

h7.1 

hll 

h9.9

hlO 

h4.0

0

Apr.

O

9.8 

13 

13 

16

17 

14 

13 

18 

21

21 

17 

18 

18 

18

37 

33 

34 

33 

31

Secondfoot -days

958 

508.3 

343.8

4,158.78

135.7 

3.0 

42.0 

383.8 

15S.5 

63.5 

210.1 

422.3 

501.3

3,730.3

May

31 

31 

31 

0 

O

O 

O 

O 

O 

O

0 

O 

0 

0 

0

0 

0 

4 

7 

7

7 

6 

6 

5 

5

5 

5 

5 

5 

4.5 

4

Maximum

35 

29 

19

35

19

11 

34 

31

14 

22 

23

35

June

3.5 

3 

3.5 

Z 

2

2 

2 

2 

Z 

1.5

1

I"

1 ' 2 

2 

Z 

2

2.5 

2.5 

3 

3

» 3

July

) 

 3.5

7.7 

9.5 

8.4 

7.7 

7.3

7.7 

S.O 

S.O

 11 

14

14 

13 

13 

12

9.e

9.0

Minimum

36 

0 

0

O

O 

O 

0 

0

5.4 

3.0

0

Aug.

8.3 

5.4 

6.8 

12 

15

11 

11 

12 

17 

19

19 

18 

15 

15 

21

ZZ 

IS 

17 

14 

12

13 

14 

13 

12 

13

11 

' 9.7 

10 

11 

13 

16

Mean

30.9 

16.9 

11.1

11.4

4.38 

,11 

.1.35 

12.8 

5.11 

2.12 

6.78 

13.6 

16.7

10.3

Sept.

18 

19 

19 

19 

19

19 

19 

16 

13 

11

13 

13 

15 

16 

16

16 

16 

9.6 

3.0 

9.7

12 

19 

21 

32 

23

23 

22

21 

31 

31

Runoff In 

acre-feet

1,900 

. 1,010 

6S2

8,240

269 

6.0 

S3 

7S1 

314 

126 

417 

837 

994

7,400

h Computed from staff-gage reading' and notes of observer.

Note. No gage-height record except occasional staff-gage readings Jan. 11 to Mar. 12, Mar. 18 to 

Apr. 11, May 4 to July 15; discharge computed on basis of 3 observations of no flow, observer's 

notes, and records for Concow Creek near Yankee Hill.
346 FEATHER RIVER BASIN 

Middle Pork Feather River near Clio, Calif.

Location. Water-stage recorder, lat. 39°45', long. 120°36', in E| sec. 23, T. 22 N., R. 12 

 i!., 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 1950.

Average discharge. 25 years, 241 second-feet.

Extremes. Maximum discharge during year, 2,680 second-feet Feb. 6 (gage height, 8.26 feet); 

minimum, 11 second-feet Oct. 4.

1925-50: Maximum discharge, 11,000 second-feet Mar. 26, 1928 (gage height, 12.0 

feet), from rating curve extended above 7,000 second-feet; minimum 4.3 second-feet 

Sept. 5, 1934.

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

1air. Many small diversions above station for irrigation.

Rating tables, water year 1949-5O (gage height. In feet, 

and discharge, In aeeond-feet)

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

1.9 10 3.2 157 5.8 1,010 1.9 14 3.1 139 5.4 757 

2.1 18 3.6 238 6.8 1,550 2.1 20 3.4 197 6.0 995 

2.3 31 4.0 337 8.O 2,43O 2.3 32 3.8 284 6.6 1.28O 

2.6 62 4.5 491 2.5 SO 4.2 39O 7.3 1,750 

2.9 1O6 5.0 670 2.8 9O 4.8 564

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

16 

15 

15 

12 

15

15 

17 

17 

17 

16

16 

16 

16 

16 

16

16 

16 

17 

18 

18

17 

17 

17 

17 

17

17 

17 

17 

17 

17 

17

Nov.

17 

17 

17 

17 

18

18 

18 

20 

71 

57

32 

34 

34 

35 

36

36 

36 

35 

34 

35

35 

35 

34 

34 

34

34 

34 

35 

40 

56

Dec.

40 

38 

37 

37 

39

38 

37 

37 

36 

36

30 

31 

29 

29 

29

30 

33 

35 

37 

31

32 

30 

29 

29 

26

26 

25 

24 

24 

24 

23

Jan.

23 

23 

23 

26 

27

26 

26 

27 

29 

30

34 

37 

37 

42 

47

61 

190 

474 

187 

122

330 

888 

2,170 

1,240 

857

aeob

'dSOO 

d350 

d250 

d225 

d200

Feb.

dlSO 

dlOO

aso

dSOO 

922

2,42O 

1,750 

1,740 

1,200 

892

634 

519 

445 

396 

368

354 

339 

328 

326 

323

313 

300 

300 

307 

336

359 

393 

396

Month

Qcto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

ter year 1949-50 .......................

Peak discharge (base. 850 sec. -ft.). Jan.

ft.; Mar. 20 (4 a.m.; 982 Bee. -ft.; Mar. 22

Mar.

373 

359 

362 

376 

446

346 

341 

354 

326 

294

260 

221 

209 

205 

205

209 

371 

370 

590 

798

703 

1,040 

822 

760 

830

778 

750 

712 

687 

661 

668

Apr.

648 

690 

700 

6O4 

597

771 

757 

736 

906 

1,080

1,090 

1,120 

1,150 

954 

846

652 

800 

760 

722 

709

716 

700 

677 

632 

594

579 

558 

504 

449 

410

Hay

463 

471 

513 

585 

632

645 

537 

471 

429 

401

376 

339 

310 

240 

251

274 

279 

267 

239 

242

240 

240 

238 

238 

245

225 

209 

215 

2O3 

193 

191

Second- Ha-im,,., foot-days H"1"1""

507 18 

988 71 

981 40

43,556.2 1,360

9,101 2,170 

16,790 2,420 

15,426 1,040 

22,111 1,150 

10, 401 645 

3,161 -187 

936 55 

535 21 

661 36

81,598 2,420

June

187 

173 

157 

144 

136

127 

122 

112 

108 

96

1O6 

106 

104 

1O9 

109

109 

104 

101 

100 

101

98 

92 

90 

88 

78

71 

.65 

61 

56

51

July

49 

46 

50 

55 

52

46 

41 

39 

36 

36

33 

35 

33 

31 

28

26 

24 

24 

22 

20

20 

20 

20 

19 

18

19 

20 

19 

18 

18 

19

Aug.

19 

21 

21 

20 

18

17 

16 

17 

17 

17

20 

19 

18 

18 

18

18 

17 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16 

16

Sept.

16 

16 

16 

17 

16

16 

17 

18 

18 

24

22 

22 

22 

22 

20

20 

20 

21 

22 

22

22 

22 

23 

26 

27

29 

29 

29 

31 

36

MlnlHUB *an *£«£

12 16.4 1,010 

17 32.9 1,960 

23 31.6 1,950

8.1 119 86,400

23 294 18,050 

80 600 33,300 

205 498 30, 600 

410 737 43,860 

191 336 20,63O 

51 105 '6,270 

18 30.2 1,860 

16 17.5 1,060 

16 22.0 1,310

12 224 161, 9OO

23 (1 p.m.) 2,510 sec. -ft. j Feb. 6 (5 p.m.) 2,680 eec.- 

[9 a.m.) 1,200 see. -ft.; Apr.. 12 (3:30 a.m.) 1,220 eee._- ft.

d Doubtful gage-height record; discharge computed on basis of records for stations below Sloat and 

at Bidwell Bar.
FEATHER RIVER BASIN 347

Middle Pork Feather River below Sloat, Calif.

Location. Water-stage recorder, lat. 39°52', long. 120°46', 0.5 mile west of Bells Bar, 

J..B 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 1950.

Extremes. Maximum discharge during year, 4,020 second-feet Feb. 6; maximum gage height,

 7.18 feet Jan. 18 (ice Jam); minimum discharge, 35 second-feet Oct. 5.

1940-50: Maximum discharge, 12,400 second-feet Jan. 21, 1943 (gage height, 12.65 

feet); minimum, 32 second-feet Sept. 5,. 6, 1949.

Maximum stage known, 13.2 feet, from floodmarks, probably in February 1940 (discharge, 13,300 second-feet, from rating curve extended above 9,000 second-feet).

Remarks. Records good except those for periods of ice effect or no gage-height record,

 wRIch are fair. Flow slightly regulated by millpond at Sloat. Many small diversions 

above station for irrigation.

Discharge, in second- feet, .Hater year October 1949 to September 195O

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

42 

40 

40 

38 

36

39 

38 

45 

45 

44

44 

44 

43 

42 

43

42 

42 

46 

44 

49

46 

46 

45 

45 

46

46 

47 

48 

47 

48 

47

Nov.

49 

48 

48 

48 

48

51 

52 

57 

116 

170

97 

80 

78 

79 

79

80 

79 

78 

76 

76

78 

76 

75 

75 

75

76 

75 

*79 

80 

92

Dec.

82 

76 

75 

72 

78

76 

72 

71 

69 

68

b65 

b60 

b58 

59 

59

53 

b58 

b65 

b60 

b50

b55 

b55 

b60 

58 

b55

b50 

b48 

b48 

 54 

51 

b48

Jan.

b48 

b48 

b4fa 

b52 

b50

b55 

b50 

b55 

b65 

blOO

b!20 

b!40 

b!30 

b!50 

b!90

275 

406 

1,150 

664 

452

816 

1,570 

3,090 

1,870 

1,070

1,020 

780 

610 

448 

b374 

b350

Feb.

303 

270 

253 

1,690 

1,840

3,570 

2,600 

*2,260 

1,680 

1,280

948 

780 

691 

632 

610

614 

610 

592 

601 

601

583 

560 

560 

570 

624

660 

725 

725

Month

Octo 

Move 

Dace

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ober. ......... .-------. - - - -----------

lendar year 1949

ember . . ... .....

ter year 1949-50 .......................

Peak discharge (base, 1,600 sec . -f t . ) . ~Ja

sec. -ft.; Feu. 6 (9 

-sec. -ft.; Apr. 13 (7 

» Winter discharge 

b Stage -discharge 

Note. No gage -he 1 

BidweTl Bar.

a.m. ) 4,020 sec. 

a.m. ) 2,020 sec 

measurement mad

relation affecte 

ght record June

-ft.; Ma 

.-ft.; A 

e on thi 

d by Toe 

3-22; dl

Mar.

696 

678 

668 

.696 

800

720 

650 

646 

610 

556

516 

452 

422 

406 

406

403 

673 

682 

1,230 

1,430

1,240 

1,840 

1,460 

1,360 

1,330

1,230 

1,190 

1,140 

1,090 

1,070 

1,100

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,

Secondfoot -days

1,357 

2,270 

1,913

89,198

16,243 

27,432 

27,389 

43,570 

30,643 

15,620 

3,996 

1,911 

1,786

174,130

120 

230 

280 

160 

160

580 

540 

430 

490 

7OO

700 

750 

940 

640 

490

460 

470 

490 

480 

530

630 

680 

630 

470 

370

360 

360 

280 

120 

030

May

1,130 

1,070 

1,040 

1,090 

1,120

1,120 

966 

870 

835 

810

830 

845 

895 

918 

978

1,030 

1,050 

1,030 

954 

942

1,OOO 

1,050 

1,060 

1,070 

1,110

1,000 

990 

1,000 

960 

942 

948

Maximum

49

170 

82

1,500

3,090 

3,570 

1,840 

1,940 

1,130 

912 

266 

75 

65

3', 570

June

912 

850 

800 

750 

700

660 

640 

620 

620 

630

610 

590 

560 

550 

530

520 

510 

500 

480 

430

410 

390 

382 

370 

318

284 

263 

256 

349 

246

July

266 

222 

211 

207 

193

18O 

167 

162 

151 

150

145 

139 

134 

126 

119

113 

108 

104 

100 

97

93 

89 

89 

86 

82

80 

82 

78 

76 

75 

72

Aug.

71 

74 

75 

74 

72

70 

69 

66 

65 

66

66 

69 

65 

63 

59

59 

59 

58 

55 

53

52 

53 

54 

56 

54

54 

56 

56 

56 

56 

56

Sept.

57 

58 

58 

59 

59

59 

61 

59 

59 

65

65 

63 

63 

62 

61

59 

59 

61 

62 

61

59 

57 

58 

58 

58

58 

57 

57 

57 

57

Mini . Mean -J-^

36 43.8 2,690 

48 75.7 4,500 

48 61.7 3,790

33 244 176,900

48 524 32,220 

253 980 54,410 

402 884 54,33O 

1,030 1,452 86,420 

810 988 60,780 

246 521 30,980 

72 129 7,930 

52 61.6 3,790 

57 59.5 3,540

36 477 345,400

n. 18 (9 a.m.) 1.64O sec. -ft.; Jan. 23 

r. 20 (2 a.m.) 1,690 sec. -ft.; Mar. 22 

pr. 32 (11 p.m.) 1,750 sec. -ft. 

s_ day_.

B charge computed on basis of records for

3 p.m.) 3,760 

9 a.m.) 2,160

station at
348 FEATHER RIVER BASIN

Middle Pork Feather River at Bidwell Bar, Calif. 

Location. --Water-stage recorder, lat. 39°33', long. 121-26' in NW*

ss

see 32 T 20

Drainage area. 1.353 square miles.

to September 1950. Records available. OctnhmAverage discharge . 39 years, 1,769 second-feet.

Get 1"! ^^ 17 ' 9°° second- feet Feb. 6 (gage height, 13.02 feet);

r"ervoirs """

Rating table, water year 1949-5O (gage height, in feet, 

and discharge, in second-feet)

2.0 148 3.0 398 5.5 1,960 8.5 5,850 

2.1 166 3.4 543 6.0 2,460 9.0 6,650 

2.2 187 3.8 720 6.5 3,040 10.0 8,500 

2.4 232 4.2 935 7.0 3,680 11.0 10,900 

2.6 282 4.5 1,120 7.5 4,380 12.4 15,5OO 

2.8 338 5.0 1,510 8.0 5,100

Discharge, In second- feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

ei

22

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

164 

161 

157 

155

153

152 

153 

161 

164 

172

179 

176 

170 

168 

166

166 

166 

166 

166 

172

176 

176 

174 

173 

170

170 

170 

168 

168 

168 

166

Nov.

166 

166 

164 

164 

162

164 

168 

187 

496

740

528 

349 

293 

274

264

261 

261 

259 

256 

251

249 

246 

244 

244 

249

249 

246 

246 

254 

254

Dec.

256 

256 

242 

237 

259

272 

259 

254 

244 

239

232 

198 

225 

225 

254

282 

398 

455 

455 

304

242 

246 

254 

261 

251

234 

232 

230 

237 

239 

239

Jan.

225 

232 

200 

187 

218

210 

222 

302 

288 

420

379 

310 

324 

360 

288

648 

2,530 

4,740 

3,000 

1,870

3,620 

6,530 

8,230 

6,520 

3,560

2,650 

2,320 

2,260 

1,670 

1,370 

1,200

Feb.

1,050 

953 

965 

8,720 

11,900

15,200 

8,730 

6,110 

5,020 

4,340

3,750 

3,020 

2,680 

2,420 

2,340

2,45O 

2,460 

2,370 

2,370 

2,380

2,290 

2,210 

2,170 

2,160 

2,310

2,440 

2,640 

2,720

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

nber

nber. ...................................

lendar year 1949 

Etry

uary. .... ^

ter year 1949-50 .......................

Mar.

2,640 

2,590 

2,540 

2,600 

2,960

2,900 

2,550 

2,380 

2,260 

2,100

1,980 

1.8OO 

1,700 

1,610 

1,550

1,530 

2,370 

2,700 

5,400 

5,980

4,630 

6,550 

5,980 

6,060 

5,340

4,670 

4,340 

4,060 

3,820 

3,650 

3,890

Apr.

4 

4 

4 

4 

4

6 

6 

6 

5 

5

5 

5 

6 

5 

4

5 

5 

5 

5 

6

6 

6 

6 

6 

5

5 

5 

5 

4 

4

Secondfoot-days

5,165 

8,054 

8,211

394,914

56,883 

108,168 

105,130 

163,460 

127,150 

47,828 

14,022 

7,396 

5,829

657,296

020 

320 

590 

390 

450

440 

330 

060 

310 

180

040 

070 

060 

400 

950

000 

220 

520 

760 

170

620' 

860 

670 

120 

660

580 

660 

490 

920 

600

May

4,840 

4,580 

4,170 

3,780 

3,790

3,710 

3,390 

3,100 

3,000 

3,090

3,330 

3,650 

4,070 

4,550 

4,770

4,840 

4,920 

4,760 

4,460 

4,380

4,550 

4,660 

4,580 

4,550 

4,480

4,210 

4,020 

3,960 

3,710 

3,630 

3,620

Maximum

179 

740 

455

5,850

8,230 

15,200 

6,550 

6,860 

4,920 

3,450 

750 

282 

320

15,200

June

3,450 

3,190 

2,880 

2,570 

2,400

2,280 

2.O9O 

1,85O 

1,700 

1,590

1,590 

1,700 

-1,530 

1,490 

1,430

1,370 

1,320 

1,260 

1,220 

1,210

1,210 

1,170 

1,100 

1,050 

995

923 

864 

826 

795 

775

July

750 

. 715 

686 

658 

626

600 

571 

551 

527 

507

503 

488 

469 

'451 

434

414 

296 

392 

379 

369

358 

349 

341 

335 

330

321 

310 

307 

302 

296 

285

Minimum

152 

162 

198

144

187 

953 

1,530 

4,020 

3,000 

775 

285 

191 

179

152

Aug.

'282 

279 

279 

279 

282

279 

272 

266 

261 

256

251 

254 

259 

254 

246

239 

234 

230 

225 

220

213 

210 

210 

210 

2O8

206 

204 

202 

200 

195 

191

Mean

167 

268 

265

1,082

1,835 

3,863 

3,391 

5,449 

4,102

*452 

23"9 

194

1,801

Sept.

189 

185 

183 

179 

179

179 

179 

185 

191 

195

208 

213 

208 

208 

202

198 

195 

206 

220 

215

206 

198 

191 

189 

189

191 

189 

189 

185 

185

Runoff In 

acre-feet

10,240 

15,970 

16,290

783,400

112,800 

214,500 

208,500 

324,200 

252,200 

94,870 

27,810 

14,670 

11,560

1,304,000

Peak discharge (base, 5,600 sec. -ft .) . Jan. 23 (5 p.m.) 10.800 aec.-ft.; Feb. 6 (7 a.m.) 17,900

sec.-ft.; Apr. 22 (12 p.m.) 7,140 sec.-ft.
FEATHER RIVER BASIN 349

South Fork Feather River at Enterprise, Calif.

Location (revised). Water-stage recorder, lat. 39°32'15", long. 121°20'45", in HW& sec.

b, T. 19 B., K. 6 E., 0.5 mile upstream from McCabe Creek and 1 mile upstream from

highway bridge at Enterprise. Altitude of gage, about 640 feet (from topographic map), 

Drainage area. 134 square miles. 

Kecorgs available. September 1930 to September 1950. October 1911 to September 1930 at

site nair a mile downstream. 

Average discharge. 39 years, 296 second-feet. 

Extremes. Maximum discharge during year, 4,980 second-feet Feb. 6 (gage height, 11.8

reet, from high-water mark in gage well); no flow Aug. 9, 10, Sept. 24-30.

1911-50: 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; no flow Aug. 9, 10, Sept. 24-30, 1950.1 

Remarks. Records good except those for periods of ho gage-height jpecord, which are fair.

storage and diversions above station for irrigation. (See p. 351 for records for

Palermo Canal.)

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.0 0 1.5 3.6 2.4 34 4.0 220 7.0 1,190 

1.1 .2 1.6 5.3 2.6 48 4.5 317 8.0 1,720 

1.2 .6 1.8 9.8 2.9 73 5.0 445 9.0 2,380 

1.3 1.2 2.0 16 3.2 105 5.5 605 10.0 3,180 

1.4 2.2 2.2 24 3.5 144 6.0 780 11.0 4,110

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.4 

.5 

.4 

.4

.4 

.4 

.5 

.4

1.5

5.0 

2.9 

4.5 

7.0 

7.0

6.6 

6.6 

4.3 

3.6 

4.4

4.3 

4.1 

3.8 

2.5 

2.1

1.8 

1.6 

1.4 

1.2 

1.2 

1.1

Nov.

1.0 

.9 

.8 

.7 

.7

.7 

,7 

2.9 

41 

70

36 

22 

17 

15 

13

12 

12 

13 

14 

12

12 

12 

11 

11 

11

12 

12 

12 

12 

13

Dec.

13 

13 

12 

12 

15

17 

15 

14 

14 

13

12 

11 

11 

12 

16

21 

48 

53 

45 

24

21 

18 

17 

16 

16

15 

15 

15 

15 

15 

15

Jan.

14 

15 

11 

13 

16

16 

16 

29 

25 

51

44 

42 

42 

44 

42

73 

320 

810 

300 

233

552 

896 

1,140 

786 

418

284 

244 

251 

209 

176 

154

Feb.

134 

116 

135 

2,180 

g2,760

g3,440 

gl,840 

gl,060 

g780 

g710

g675 

542 

475 

430 

415

451 

448 

427 

421 

421

402 

395 

385 

382 

400

418 

445 

460

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

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

ter year 1949-50 .......................

Mar.

454 

457 

451 

460 

529

499 

451 

410 

388 

360

340 

306 

288 

272 

263

263 

460 

460 

1,170 

1,080

808 

1,240 

al,150 

al,180 

al,000

a86cr 

a770 

a70o 

a 640 

a600 

630

Apr.

650 

696 

734 

717 

780

1,300 

1,260 

1,200 

992 

860

792 

770 

1,040 

876 

804

816 

864 

932 

996 

1,090

1,200 

1,240 

1,200 

1,090 

1,000

980 

984 

952 

848 

773

Secondfoot-days

82.3 

403.4 

569

61,167.8

7,266 

21,147 

18,939 

28,436 

19,614. 

4,752 

394.0 

47.1 

44.3

' 101,694.1

Peak discharge (base, 1,400 sec.-ft. ).--Jan. 18 (8 a.m

May

844 

773 

678 

591 

560

529 

490 

454 

448 

469

511 

580 

658 

752 

759

731 

804 

776 

724 

703

724 

703 

660 

668 

672

633 

605 

574 

523 

517 

493

Maximum

7.0 

70 

53

1,140

1,140 

3,440 

1,240 

1,300 

844 

457 

41 

4.4 

5.3

3,440

June

457 

405 

350 

306 

272

251 

224 

196 

179 

166

166 

174 

151 

141 

131

124 

113 

106 

99 

93

89 

83 

76 

72 

68

61 

56 

51 

48 

44

July

41 

35 

32 

29 

27

24 

22 

21 

19 

18

17 

16 

14 

12 

10

8.1 

6.8 

6.1 

5.1 

3.9

3.3 

2.5 

3.5 

3.6 

3.8

2.9 

2.1 

1.9 

1.7 

1.1 

.6

Aug.

0.7 

.7 

.7 

.5 

.7

.5 

.3 

.1 

0 

0

1.0 

4.3 

4.4 

4.1 

3.6

3.8 

3.0 

2.8 

2.3 

1.5

1.2 

1.6 

1.4 

1.4 

1.3

1.1 

.9 

.8 

.8 

.8 

.8

Sept.

0.8 

.7 

.5 

.8 

.8

1.0 

1.8 

3.3 

4.3 

4.6

4.6 

5.3 

84.5 

83.7 

82.8

al.8 

al.O 

.2 

.7 

.5

.2 

.2 

.2 

0 

0

0 

0 

0 

0 

0

Minimum Mean acre-feet

0.4 2.65 163 

.7 13.4 8OO 

11 18.4 1,130

.4 168 121,300

11 234 14,410 

116 755 41,940 

263 £11 37,560 

650 948 56,400 

448 633 38,900 

44 158 9,430 

.6 12.7 781 

0 1.52 93 

0 1.48 88

0 279 201,700

. J 1,720 sec.-ft.j Jan. 23 5 p.m.) 1,490

aec. -,,, ___. _ _ _-._. _ __ __. . . ._. *_ -* . . * _ ,_. -_. _». _ -.* «.«.. - ,. sec.-ft.3 Apr. 6 (7 a.m.) 1^520 sec.-ft!' ' " '* *" " ' *' ~~° "'' '

a Ho gage-height record; discharge Interpolated or computed on basis of records for Middle Fork

Feather River at Bldwell Bar.

g -Computed from graph based on gage readings.
350 FEATHER RIVER BASIN 

Lost Creek near Clipper Mills, Calif.

Location.--Water-stage recorder, lat. 39"34'25", long. 121°08'20", in SE^ sec. 24, T. 20

 IT K 7 E 1 000 feet downstream from Lost Creek Dam, 0.3 mile downstream from Pinkard Creek,'and 3 miles north of Clipper Mills. Altitude of gage, about 3,160 feet 

(from topographic map).

Drainage area. 30.1 square miles.

Records available. October 1927 to September 1941, October 1948 to September 1950.

Average discharge. 16 years, 62.1 second-feet.

Extremes. Maximum discharge during year, 3,040 second-feet Feb. 4 (gage height, 6.52

 feet) from rating curve extended above 450 second-feet on basis of determination 01 

flow over dam at 6.80 feet; no flow Sept. 20-22 and parts of Sept. 19, 23.

1927-41, 1948-50: Maximum discharge, 3,380 second-feet Dec. 10, 1937 (gage height, 

6.80 feet), computed from peak .flow over Lost Creek Dam; no flow at times in 1940-41, 

1949-50.

Remarks. Records good. Storage in Lost Creek Reservoir (capacity, 5,640 acre-feat) above

station was 1,450 acre-feet Sept. 30, 1949, and 1,350 acre-feet Sept. 30, 1950. Forbestown ditch diverts water a quarter of a mile above station.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

0.5 0 1.0 5.6 2.1 65 3.3 375 

.6 .1 1.2 11 2.4 107 3.6 515 

.7 .5 1.5 21 2.7 173 3.9 680 

.8 1.8 1.8 37 3.0 262 4.1 810

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.0 

5.8 

4.8 

4.8 

5.0

5.0 

5.2 

5.4 

5.6 

8.8

8.3 

7.3 

7.5 

6.8 

6.1

6.1 

3.3 

2.3 

2.5 

2.5

2.5

1.8 

.5 

.5 

.5

.5 

.5 

.5 

.4 

.4 

.4

Nov.

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

 .5

.4 

.4 

.3 

,3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

Dec.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3 

.3

.3 

.4 

.4 

.3 

.3

.3

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Jan.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3

7.3 

5.8 

.3 

.3

.8 

.5 

1.5 

.4 

.3

.3 

.3 

.2 

.1 

.1 

.1

Feb.

0.1 

.1 

.1 

682 

737

778 

307 

200 

153 

153

137 

115 

104 

97 

99

107 

111 

105 

107 

111

107 

104 

104 

105 

111

118 

126 

130

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MHv

Juhe 

July 

Augu 

Sept

Ha

nber . . . . «

lendar year 1942 

ai*y

ter year 1949-50 .......................

Peak discharge (base. 270 sec. -ft.}. Feb.

sec. -ft.j Mar. 22 (9 a.m.; 411 seo.-ft.j Apr

Mar.

130 

130 

130 

135 

153

148 

133 

120 

116 

107

104 

94 

91 

88 

87

87 

168 

150 

364 

304

230 

342 

286 

259 

206

178 

184 

163 

153 

156 

168

Apr.

Secondfoot-days

118.6 

10.3 

9.5

12,849.4

23.1 

5,008.3 

5,164 

7,552 

3,180 

431.0 

99.7 

218.1 

200.6

22,015.2

4 (4i30 p.m 

. 6 (6 a.m.)

184 

203 

218 

212 

236

367 

334 

286 

236 

215

200 

200 

304 

249 

227

230 

252

272 

289 

307

326 

315 

300 

269 

252

240

240 

224 

192 

173

May

200 

186 

156 

141 

141

137 

126 

118 

120 

126

133 

144 

148 

153 

87

52 

126 

120 

111 

97

94 

34 

20 

39 

69

64 

57 

53 

47 

42 

39

Maximum

8.8 

.5 

.4

345

7.3 

778 

364 

367 

200 

34 

6.3 

9.6 

12

778

June

34 

30 

27 

24 

19

19 

20 

19 17 ' 

16

16 

17 

16 

14 

13

12 

11 

10 

9.6 

9.6

9.3 

8.8 

8.5 

8.3 

8.0

7.5 

7.0 

7.0 

6.8 

6.6

July

6.3 

6.1 

5.8 

5.6 

5.2

4.8 

4.6 

4.1 

3.9 

3.7

3.3 

3.2 

2.8 

2.5 

2.0

1.7 

1.3 

1.5 

.6 

.5

.4 

2.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.2 

3.2 

3.2 

3.2

Aug.

3.2 

3.2 

3.0 

3.0 

3.0

2.8 

3.0 

3.2 

3.2 

3.9

8.0 

8.3 

8.3 

8.3 

8.3

8.5 

8.5 

8.5 

8.8 

8.8

9.0 

9.0 

9.3 

9.3 

9.3

9.3 

9.3 

9.3 

9.3 

9.6 

9.6

Minimum Mean

0.4 3.83 

.3 .34 

.3 .31

.2 35.2

.1 .75 

.1 179 

87 167 

173 252 

20 103 

6.6 14.4 

.4 3.22 

2.8 7.04 

0 6.69

0 60.3

Sept.

9.6 

9.6 

9.6 

10 

10

11 

11 

11 

11 

11

12 

12 

9.0 

4.8 

4.8

5.0 

5.0 

5.0 

2.2 

0

0 

0 

2.2 

4.3 

4.3

4.3 

4.6 

4.6 

5.4 

7.3

Runoff in 

acre-feet

235 

20 

19

25,5OO

46 

9,930 

10,240 

14,980 

6,310 

855 

198 

433 

398

43,660

.) 3,040 sec. -ft. j Mar. 19 (2:30 p.m.) 570 

429 sec. -ft.} Apr. 13 (8 a.m.) 323 sec. -ft.;
FEATHER RIVER BASIN 351

Palermo Canal at Enterprise, Calif.

Location (revised).--Water-stage recorder and Parshall flume, lat. 39°32'05", long. 

121"2U'4U", in NW£ sec. 6, T. 19N..R. 6E., 400 feet downstream from intake at diversion dam on South Pork Feather River, 0.6 mile upstream from McCabe Creek and 

1 mile east of highway bridge at Enterprise. Altitude of gage, about 650 feet (from 

topographic map).

Records available. October 1911 to September 1950. 

Average discharge.--39 years, 19.0 second-feet.

Extremes.--Maximum daily discharge during year, 32 second-feet July 17-24, Aug. 11 to 

sept. 13; minimum daily, 1.3 second-feet Mar. 17-19.

1911-50; Maximum discharge recorded, 43 second-feet July 25, 1927; no flow for 

periods in each year except 1939, 1941, 1942, 1944-47, 1949, 1950.

Remarks. Records excellent. Canal diverts from left bank of South Fork Feather River 

T~mTle 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 1949 to September 1950

Day

1 

2 

3 

4 

5

e

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

2S 

29 

30 

31

Oct.

27 

26 

25 

24 

24

24 

25 

25 

25 

26

26 

26 

24 

20 

19

19 

19 

19 

19 

19

18 

IS 

19 

18 

IS

18 

IS 

18 

18 

18 

18

Nov.

18 

18 

17 

17 

17

17 

17 

17 

16 

16

16 

15 

15 

15 

15

15 

13 

12 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

Dac.

11 

11 

11 

11 

11

11 

11 

11

11 

11

11

11 

11 

> 11 

11

11 

11 

11 

11 

10

10 

10 

10 

10

10

10 

10 

10 

10 

10 

10

Jan.

10 

10 

10 

10 

10

11

10 

10 

10 

9.9

9.6 

9.6 

9.6 

9.6 

9.9

9.9 

10 

9.9 

S.S 

8.6

8.8 

9.0 

S.6 

8.4 

8.0

.8 

.8 

.8 

.8 

.8 

.6

Feb.

7.6 

7.6 

7.6 

8.2 

7.0

6.1 

5.7 

5.5 

5.3 

5.3

5.5

6.2 

6.2 

6.2 

6.2

6.2 

6.2 

6.2 

6.4 

6.6

6.6 

6.6 

6.8 

6.8 

7.0

7.0 

7.0 

6.8

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 ........................

Mar.

6.8 

6.8 

6.8 

6.8 

7.0

7.0 

7.0 

7.0 

7.0 

7.O

7.0 

7.0 

7.0 

7.0 

7.0

3.8 

1.3 

1.3 

1.3 

5.1

7.2

7.2 

6.6 

6.6 

6.6

6.6 

6.6 

6.6 

6.6 

6.8 

8.2

Apr.

9.4 

9.6 

9.6 

9.6 

9.6

9.9 

9.9 

9.9 

9.6 

9.6

9.6 

9.4 

9.4 

9.4 

9.4

9.4 

9.4 

9.4 

9.4 

9.6

9.6 

9.6 

9.6 

9.6

13

15 

14 

10 

16 

24

Secondfoot-days

660 

418 

329

7,477.2

285.8 

182.4 

192.6 

321.5, 

892 

927 

959 

9S2 

875

7,024.3

«ay

25 

25 

24 

23 

25

27 

27 

27 

27 

28

28 

28 

29 

29 

29

28 

30 

31 

31 

31

31 

31

31 

31 

31

31 

31 

31 

30 

31 

31

Maximum

27 

18 

11

31

11 

8.2 

8.2 

24 

31 

31 

32 

32 

32

32

June

31 

31 

31 

31 

31

31 

31 

31 

31 

31

30 

31 

31 

31 

31

31 

31 

31 

31 

31

31 

31 

31 

31 

31

31 

31 

31 

30 

30

July

30 

30 

30 

30 

30

30 

30 

30 

30 

30

31 

31 

31 

31 

31

31 

32 

32 

32 

32

32 

32 

32 

32

31

31 

31 

31 

31 

31 

31

Minimum

18 

11 

10

9

7.6 

5.3 

1.3 

9.4 

23 

30 

30 

31 

22

1.3

Aug.

31 

31 

31 

31 

31

31 

31 

31 

31 

31

32 

32 

32 

32 

32

32 

32 

32 

32 

32

, 32 

32 

32 

32 

32

32 

32 

32 

32 

32 

32

Mean

21.3 

13.9 

10.6

20.5

9.22 

6.51 

6.21 

10,7 

28.8 

30.9 

30.9 

31.7 

29.2

19.2

Sept.

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

31 

29

29 

29 

30 

30 

27

25 

23 

22 

24 

26

27 

27 

27 

26

27

Runoff in 

acre-feet

1,310 

829 

653

14,820

567 

362 

382 

638 

1,770 

1,840 

1,900 

1,950 

1,740

13,940
352 FEATHER RIVER BASIN

Middle Yuba River at Milton, Calif. 

(Formerly published as Middle Fork Yuba River at Milton)

Location. Water-stage recorder and concrete spillway control, lat. 39°31'22", long.

 iyou 35'0l", in SWj sec. 12, T. 19 N., R. 12 E., at diversion dam of Nevada Irrigation 

District, at old town site of Milton, 8 miles upstream from South Fork of Middle Fork. 

Altitude of gage, about 5,700 feet (from topographic map).

Drainage area. 41 square miles.

Records available. October 1928 to September 1934, October 1935 to September 1950. Decemoer j.925 to September 1928 at site 0.2 mile downstream. Prior to October 1949, published 

as Middle Fork Yuba River at Milton.

Average discharge. 20 years (19S6-30, 1931-34, 1935-40, 1941-42, 1943-50), 101 -second-feet 

(oasea on combined flow of Middle Fork at this station and Milton-Bowman tunnel at outlet).

Extremes.--Maximum discharge during year, 870 second-feet May 21 (gage height, 1.20 feet); 

no now over dam for long periods.

1925-34, 1935-50: 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.356) diverts above station to Bowman 

ESTce (see p. 362).

Cooperation. Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

0 0.4 . 143

9 .5 2O7

42 .6 277

88 .7 354

0.6 440

.9 535

1.0 640

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

2S 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0 

0 

0 

0

78 

116 

88 

34 

30

26 

24 

0 

0 

0 

0

Feb.

0 

0 

0 

103 

110

26 

.3 

0 

0 

0

0 

0 

0 

0 ' 0

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu. 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 194 5 .......................

Mar.

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

31 

58

42 

99 

58 

42 

19

1.5 

0 

0 

0 

0 

2.6

Apr.

34 

24 

0 

0 

0

0 

0 

0 

O 

0

0 

0 

0 

0 

0

0 

O 

0 

34 

143

2O7. 

221 

181 

138 

149

194 

221 

169 

126 

132

Secondfoot-days

0 

0 

0

13,786

396 

239.3 

353.1 

1,973 

9,037.0 

2,627.8 

0 

0 

0

14,626.2

May

73 

.2 

0 

0 

0

0 

0 

0 

O 

0

0 

2.8 

110 

256 

354

406 

406 

380 

380 

468

556 

566 

566 

577 

598

535 

577 

535 

526 

577 

588

Maximum

0 

0

0

1,060

116 

110 

99 

221 

598 

516 

0 

0 

O

598

June

516 

450 

316 

249 

235

156 

-*6 

0 

0 

0

0 

0

o

47 

121

0 

9.1 

116 

138 

162

88 

8.7 

0 

0 

0

0 

0 

0 

0 

0

July 

Minimum

0 

0 

0

0

0 

 0 

0 

0 

0 

0 

0 

0 

0

°

Aug.

Mean

0 

0 

0

37.8

12.8 

8.55 

11.4 

65.8 

292 

87.6 

0 

0 

0

40.1

Sept.

Runoff in 

acre-feet

0 

0 

0

27,350.-

785 

475 

700 

3,910 

17,920 

5,210 

0 

0 

0

29,000
FEATHER RIVER BASIN 353

Middle Yuba River above Oregon Creek, Calif. 

(Formerly publlsed as Middle Fork Yuba River above Oregon Creek)

Location, Water-stage recorder, lat, 39°23', long. 121°05', In SE£ sec. 28, T. 18 N., R. 

8 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 1950. Prior to October 1949,'published as 

Kiddie ForK xuoa River above Oregon Creek.

Extremes. Maximum discharge during year, 3,780 second-feet Feb. 6 (gage height, 8.07 

reet); minimum, 10 second-feet Jan'. 3.

1941-50; 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 Jan. 3, 1950.

Remarks. Records good except those for periods of Ice effect or doubtful gage-height rec- 

 oriTT which are fair. Milton-Bowman tunnel (see.p. 350, above station, has diverted to 

Bowman Lake since 1928; also small diversions above station.

Rating table, water year 1949-50, except period of Iqe effect 

(gage height, In feet, and discharge, In second-feet)

i' 7 13 2.7 116 4.2 538 6,0 1,530 

1-9 26 3.0 174 4.6 703 6.5 1.980 

2.1 42 3.4 270 5.0 890 7.0 2,490 

2.4 72 3.8 394 5.5 1,180 7.4 2,940

Discharge, In second-feet, water year October 1949 to 3eptenber 1950

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 

2S 

29 

30 

31

Oct.

25 

25 

25 

23 

23

25 

29 

2S 

27 

28

38 

27 

36 

25 

24

24 

24 

25 

25 

25

25 

25 

25 

25 

25

24 

23 

33 

23 

32 

23

Nov.

24 

22 

22 

22 

32

32 

24 

29 

94 

143

61 

46 

40 

38 

35

34 

33 

34 

33 

33

32 

32 

32 

33 

32

32 

32 

32 

32 

32

Dec.

31 

31 

30 

31 

38

38 

34 

32 

32 

31

28 

28 

39 

*31 

34

42 

62 

93 

73 

46

42 

40 

40 

39 

38

36 

38 

38 

38 

36 

34

Jan.

38 

31 

b!5 

b20 

b20

b20 

b20 

b20 

b20 

b22

b25 

b25 

b30 

b40

303 

1,360 

dl,240 

d610 

d478

dl,360 

1,430 

2,230 

dl,020 

d664

d482 

d446 

d590 

d432 

d362 

d321

Feb.

d276 

d252 

d361 

2,050 

2,290

2,820 

*1,270 

d737 

d519 

d546

dSOO 

d435 

d 401 

d378 

d378

d394 

d384 

d368 

d381 

d381

d378 

d365 

d359 

d356 

d368

d384 

d404 

d401

Month

dcto 

Move 

Dece

Ca

Janu 

pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949 » * . *. ... ». .

ter year 1949-50 ............. i .........

Mar.

d3SS 

d381 

36S 

375 

435

401 

346 

321 

300 

270

270 

237 

325 

213 

203

198 

385 

378 

1,050 

1,020

737 

890 

840 

1,030 

855

685 

639 

602 

578 

618 

681

Apr.

1, 

1,

1,

1,

1, 

1,

Secondfoot -days

773 

1,130 

1,213

84,724

13,697 

18,036 

15,919 

26,028 

36,803 

9,893 

2,025 

1,156 

947

117,619

685 

737 

734 

673 

711

989 

070 

070 

880 

764

711 

702 

978 

840 

760

769 

797 

816 

860 

000

140 

180 

100 

962 

865

906 

972 

933 

746 

698

Hay

865 

689 

594 

533 

530

511 

460 

435 

428 

460

511 

546 

606 

733 

973

1,050 

1,090 

1,040 

978 

1,020

1,140 

1,250 

1,230 

1,200 

1,230

1,160 

1,140 

1,140 

1,070 

1,080 

1,100

Maximum

29 

143 

93

1,790

2,230 

2,820 

1,050 

1,180 

1,250 

1,040 

108 

44 

38

2,820

 June

1,040 

928 

783 

643 

590

558 

378 

273 

244 

232

254 

249 

225 

232 

365

220 

206 

243 

297 

327

330 

303 

168 

156 

144

133 

126 

122 

116 

109

July

108 

102 

96 

90

86

S3

79 

77 

74 

76

74 

70 

66 

64 

62

59 

58 

57 

56 

54

54 

52 

50 

49 

50

49 

48 

. 47 

46 

46 

44

Aug.

43 

44 

42 

42 

42

42 

42 

42 

42 

4O

39 

38 39- 

38 

38

37 

36 

36 

35 

34

34 

34 

34 

34 

34

34 

33 

33 

32 32 

31

Sept.

31 

30 

30 

30 

29

38 

30 

30 

31 

31

32 

36 

34 

33 

32

31 

32 

35 

38 

35

33 

32 

31 

30 

30

30 

30 

31 

31 

31

Mini , Mean ££££

32 24.9 1,530 

22 37.7 2,240 

28 39.1 2,410

22 232 168,000

15 442 27,170 

352 644 35,770 

198 514 31,570 

673 868 51,630 

428 865 53,160 

109 330 19,620 

44 65.3 4,020 

31 37.3 2,390 

28 31.6 1,880

15 322 233,300

Peak discharge (base. 1.800 sec.-ft.). Jan. 17 (10 p.m.) 3,040 sec.-ft.; Jan. 33 (6:30 p.m.) 

2,siu sec.-rt.; FEB. 6 (6 a.m.; 3,YBU sec.-ft. *" 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice. 

d Doubtful gage-height recordj discharge computed from graph based on several staff-gage readings.
354 FEATHER RIVER BASIN 

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 SWt sec. 

14, T. 16 N., R. 6 E., 1 mile upstream from Deer Creek and 2.5 miles northeast of 

Smartville. Datum of gage, 526.9S feet above mean sea level (levels by Corps of 

Engineers).

Drainage area.--1,110 square miles.

Records available.--October 1941 to September 1950. June 1903 to September 1941 (includ-

 ing flow of Beer Creek) at site 2 miles downstream, published as Tuba River at 

Smartville.

Extremes. Maximum discharge during year, 25,600 second-feet Feb. 6, including flow through 

powerhouse; minimum daily, 195 second-feet D.ec. 4.

1941-50: 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 of dam; no flow Nov. 8 to Dec. 2, 1941, Jan. 23-27, 1949, 

water being stored at dam.

Remarks. Records good. Diversions for power and irrigation above station. Flow regu-

 laTed by Lake Spaulding beginning in 1912 (capacity, 74,500 acre-feet), Narrows Reservoir beginning in 1941 (capacity, 70,000 acre-feet), Bowman Lake (see p. 362), Fordyce 

Lake beginning in 1926 (capacity, 46,700 acre-feet), and many smaller reservoirs. Records given herein show total flow over Narrows Dam spillway and through and past power 

plant.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

200 

200 

235 

235 

235

235 

240 

210 

265 

235

235 

245 

240 

245 

210

210 

210 

210 

210 

210

250 

295 

295 

295 

295

295 

295 

255 

200 

200 

230

Nov.

230 

225 

200 

200 

200

200 

200 

320 

425 

510

730 

725 

725 

710 

720

720 

720 

550 

200 

200

360 

365 

245 

200 

200

200 

245 

310 

200 

200

Pec.

200 

200 

200 

195 

200

200 

445 

405 

2OO 

200

205 

355 

355 

400 

480

205 

205 

205 

325 

355

445 

450 

205 

205 

330

205 

205 

205 

205 

205 

205

Jan.

205 

205 

550 

670 

710

720 

725 

730 

725 

725

725 

725 

720 

725 

700

725 

912 

6,660 

5,180 

3,070

3,820 

10,600 

11,500 

S,720 

g4,280

g2,S30 

g2,960 

g4,280 

g2,320 

gl,890 

1,680

Feb.

1,450 

1,320 

1,280 

13,000 

18,200

20,200 

9,980 

6,130 

4,530 

4,080

3,980 

3,350 

2,9SO 

2,770 

2,740

2,920 

3,000 

2,900 

2,870 

2,950

2,820 

2,690 

2,620 

2,590 

2,690

2,840 

3,000 

3,080

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

2,980 

2,900 

2,790 

2,820 

3,030

3,240 

2,850 

2,590 

2,430 

2,280

2,230 

2,040 

1,900 

1,790 

1,750

1,710 

2,310 

3,180 

5,550 

7,840

5,220 

6,010 

6,160 

8,250 

6,880

5,180 

4,680 

4,360 

4,180 

4,020 

4,380

Apr.

4,510 

4,340 

5,020 

4,850 

4,310

7,070 

7,330 

7,540 

6,150 

5,300

4,780 

4,580 

6,200 

5,940 

5,160

5,040 

5,440 

5,720 

6,120 

6,660

7,300 

7,620 

7,420 

6,620 

5,940

6,080 

6,800 

6,960 

6,020 

5,300

Secondfoot-days

7,420 

11,235 

8,400

520,563

SO, 987 

132,960 

117,580 

179,170 

194,830 

91,330 

23,451 

13,927 

14,027

875,317

May

5,800 

5,880 

4,780 

3,960 

3,760

3,640 

3,420 

3,170 

3,060 

3,140

3,420 

4,220 

5,300 

5,980 

7,140

8,260 

8,500 

8,140 

7,820 

7,820

3,220 

9,160 

8,980 

8,800 

8,700

7,380 

6,420 

7,040 

7,040 

7,140 

8,740

Maximum

295 

730 

480

6,910

11,500 

20,200 

8,250 

7,620 

9,160 

7,940 

1,260 

740 

740

20,200

June

7,940 

6,880 

6,760 

5,670 

5,02O

4,400 

3,770 

3,060 

2,660 

2,320

2,340 

2,760 

2,440 

2,320 

2,300

2,480 

2,560 

2,400 

2,420 

2,480

2,700 

2,530 

2,340 

1,990 

1,740

1,530 

1,420 

1,370 

1,340 

1,340

July

1,260 

1,160 

1,100 

1,O40 

965

915 

861 

799 

746 

720

690 

' 655 

640 

665

655

470 

390 

560 

490 

430

750 

750 

750 

750 

750

750 

750 

750 

750 

740 

750

Minimum

200 

200

195

0

205 

1,280 

1,750 

4,510 

3,060 

1,340 

390 

300 

207

195

Aug.

615 

480 

456 

453 

300

300 

437 

452 

452 

452

450 

310 

310 

455 

440

450 

450 

460 

470 

300

450 

450 

45ff 

450 

460

360 

575 

740 

595 

 450 

455

Mean

239 

374 

271

1,426

2,612 

4,749 

3,793 

5,972 

6,285 

3,044 

756 

449 

468

2,398

Sept.

462 

300 

300 

300 

447

447 

594 

74O 

740 

725

725 

720 

720 

720 

720

720 

720 

440 

300 

300

300 

300 

300 

300 

. 300

207 

300 

300 

290 

290

Runoff In 

acre-feet

14,720 

22,280 

16,660

1,032,000

160,600 

263,700 

233,200 

355,400 

386,400 

181,200 

46,510 

27,620 

27,820

1,736,000

Peak discharge (base, 7,100 sec. -ft. ) . Jan. 18 (7 a.m.) 7,860 sec. -ft. : Jan. 23 (6 a.m.) 16.300

9,740 sec.-ft.; Apr. 7 (io p.m.) 8,260 seo'-ft.'s Apr. 22 (10:30 a.m') 8,14o'sec.'rft./May 22'{8 a!m.' 

i.0,200 sec.-ft.j May 31 (9 a.m.) 9,920 sec.-ft.

g Computed from graph based on gage readings and recorded range In stage.
FEATHER RIVER BASIN 355

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. Auxiliary gage is water-stage recorder at mouth.

Records available.--October 1940 to September 1950 (1940-43, 1945, low-water periods only)

 in reports of Geological Survey. 1939-50 (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, 31,500 second-feet Feb. 5; maximum gage height,

 64'.06 feet Feb. 6; minimum discharge, 34 second-feet Oct. 17 (gage height, 44.00 feet). 

1943-44, 1945-50: Maximum discharge, 31,500 second-feet Feb. 5, 1950, but may have 

been greater Dec. 29, 1945; maximum gage height, 65.78 feet Dec. 29, 1945. 

1940-50: Minimum discharge recorded, that of Oct. 17, 1949. 

Flood of Jan. 22, 1943, reached a stage of 70.45 feet.

Remarks. Records good except those for periods of backwater or no gage-height record, 

which are fair. Flow regulated by several reservoirs above station. Many diversions 

above station for power and irrigation. Discharge during periods of backwater computed 

by using fall between base and auxiliary gages as a factor.

Cooperation.--Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

56 

53 

49 

50 

49

49 

51 

51 

50 

53

58 

56 

52 

53 

49

40 

36 

35 

36 

37

40 

42 

49 

47 

44

46 

72 

88 

88 

64 

55

Nov.

53 

50 

45 

46 

46

44 

43 

44 

50 

299

520 

603 

611 

607 

619

628 

628 

628 

384 

204

175 

263 

272 

178 

147

141 

135 

131 

147 

224

Dec.

143 

130 

128 

124 

120

115 

122 

371 

255

158

137 

137 

232 

257 

426

361 

199 

224 

238 

287

281 

353 

356 

180 

150

209 

147 

133 

130 

128 

128

Jan.

128 

126 

133 

457 

524

598 

681 

704 

717 

736

865 

815 

785 

850 

820

850 

5,610 

8,990 

7,940 

3,680

3,130 

10,900 

11,000 

13,100 

6,040

3,080 

2,340 

3,600 

2,700 

2,320 

1,980

Feb.

1,880 

1,690 

1,580 

10,300 

25,60O

24, 900 

16,400 

10,400 

6,840 

6,100

5,680 

4,450 

3,830 

3,310 

3,180

3,250 

3,430 

3,240 

3,160 

3,230

3,160 

2,900 

2,840 

2,780 

2,710

2,900 

3 a 020 

3,080

Month

Octo 

Novei 

Dece

Ca

Janu 

Pebr 

(tore 

Aprl 

Mav

June 

July 

Augu 

Sept

Na

mber. ...................................

lendar year 1949 

ary

uary. ... . ..«« «. . . ... ..

h. ......................................

at. .....................................

ter yeer 1949-50 .......................

Mar.

2,980 

2,860 

2,790 

2,740 

2,S80

3,200 

2,890 

2,620 

2,440 

2,330

2,280 

2,160 

2,220 

2,070 

2,070

2,150 

2,290 

3,250 

4,720 

11,000

6,670 

6,440 

7,310 

11,900 

11,200

7,270 

6,080 

5,460 

5,100 

4,550 

4,720

Apr.

4,890 

5,420 

5,730 

5,510 

5,300

7,400 

8,540 

10,500 

8,650 

6,630

5,670 

5,400 

6,760 

7,230 

6,380

5,820 

6,100 

6,370 

6,690 

7,280

8,100 

8,470 

8,310 

7,370 

6,470

6,470 

7,250 

7,770 

7,220 

6,090

Secondfoot -days

1,598 

7,965 

6,359

515,335

96,199 

166,340 

138, 640 

205,790 

200,360 

88,180 

15,093 

5,619 

8,659

938,802

May

6,110 

7,030 

5,910 

4,370 

4,090

3,800 

3,540 

3,300 

3,110 

3,030

3,170 

3,810 

4,970 

6,060 

6,900

8,090 

8,730 

8,500 

8,220 

8,020

8,110 

8,980 

9,070 

9,000 

9,000

8,000 

7,660 

7,660 

7,100 

6,950 

8,070

Maximum

88 

628 

426

7,800

13, 100 

25,600 

11,900 

10,500 

9,070 

7,940 

1,060 

405 

413

25,600

June

7,940 

6,950 

6,600 

5,840 

5,090

4,440 

3,850 

3,160 

2,670 

2,320

2,200 

2,450 

2,360 

2,200 

2,150

2,240 

2,350 

2,240 

2,200 

2,230

^,380 

2,390 

2,200 

1,910 

1,670

1,440 

1,270 

1,200 

1,140 

1,100

July

1,060 

982 

921 

835 

760

710 

670 

643 

597 

545

521 

449 

389 

366 

374

363 

275 

214 

214 

219

203 

236 

363 

393 

393

401 

409 

389 

397 

401 

401

Minimum

35 

43

115

35

126 

1,580 

2,070 

4,890 

3,030 

1,100 

203 

143 

105

35

Aug.

405 

302 

233 

206 

196

186 

170 

161 

163 

168

163 

166 

161 

150 

143

143 

150 

154 

156 

156

156 

147 

145 

150 

159

154 

156 

161 

256 

225 

178

Mean

51.5 

266 

205

1,412

3,103 

5,941 

4,472 

6,860 

6,463 

2,939 

487 

181 

222

2,572

Sept.

168 

163 

. 161

141 

a!35

a!35 

a!40 

a!45 

241 

298

341 

405 

409 

409 

409

401 

413 

409 

256

183

163 

154 

a!40 

a!35 

a!30

a!25 

a!20 

allS 

allO 

alOS

Runoff In

acre-feet

3,170 

15,800 

12,610

1,022,000

190,800 

329,900 

275,000 

408,200 

397,400 

174,900 

29,940 

11,150 

13,210

1,862,000

a No gage-height record; discharge computed on basis of unpublished records for Feather River above 

and below mouth of Yuba River. _

Note. Backwater from Feather River Jtt. 19-31, Feb. 5'to May 1, May 3-13.
356 FEATHER RIVER BASIN

Milton-Bowman tunnel at outlet, Calif.

Location. Water-stage recorder and concrete control, lat. 39°28', long. 120°37', in sec. 

a, 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 1950. 

Average discharge.--21 years (1928-30, 1931-50), 70.9 second-feet.

Extremes.--Maximum daily discharge during year, 356 second-feet Apr. 21, 22; minimum 

daily, 0.8 second-foot Sept. 8-12.

1928-30, 1931-50: Maximum daily discharge, 492 second-feet Feb. 11, 1941; minimum 

daily, 0.4 second-foot Oct. 7, 1944.

Remarks. Records good. Tunnel diverts from Middle Fork Yuba River at Milton, in sec. 12, 

TTT9 N., R. 12 E,, and discharges into Bowman Lake. During low and medium stages 

practically entire flow of Middle Fork Yuba River is diverted.

Cooperation. Water-stage recorder graph and two discharge measurements furnished by 

Nevada irrigation District.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.6 

2.4 

2.4 

2.4 

2.4

2.6 

2.6 

3.3 

3.7 

3.7

3.5 

3.3 

3.1 

2.7 

2.7

2.6 

2.4 

2.4 

2.6 

3.5

3.9 

3.5 

3.5 

3.3 

3.3

3.3 

3.1 

3.3 

3.5 

2.9 

2.7

Nov.

2.7 

2.6 

2.6 

2.6 

2.6

2.7 

2.7 

3.7 

6.2 

7.0

6.8 

6.2 

6.0 

6.0 

6.0

5.7 

5.7 

5.4 

5.4 

5.4

5.4 

5.2 

5.4 

5.7 

5.7

6.0 

6.0 

6.4 

7.4 

7.4

Dec.

7.0 

6.8 

6.4 

6.2 

6.2

6.2 

6.0 

6.0 

5.7 

5.4

5.0 

4.7 

4.7 

4.7 

5.0

5.4 

6.0 

6.2 

6.0

5.4

5.7 

5.4 

5.4 

5.4 

5.2

5.0 

4.7 

4.7 

4.7 

4.7 

4.7

Jan.

4.7 

5.4 

5.4 

5.2 

5.2

5.0 

5.0 

6.2 

5.7 

6.2

6.2 

6.2 

6.0 

7.0 

6.2

6.8 

10 

20 

33 

39

50 84 " 

87 

82 

78

77 

70 

61 

57 

50 

46

Feb.

40 

37 

34 

56 

80

85 

78 

72 

67 

62

58 

52 

48 

46 

45

46 

52 

52 

48 

48

48 

48 

48 

49 

52

58 

64 

67

Month

Octo 

Hove 

Deoe

Ca

janu, 

Febn 

Marc 

Apri 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949

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

ter year 1949-50 .......................

Mar.

68 

70 

70 

77 

85

87 

82 

74 

69 

66

63 

58 

54 

53 

52

52 

57 

60 

77 

97

94 

97 

94 

92 

91

88 

85 

80 

78 

79 

85

Apr.

92

177 

211 

192 

214

261 

232 

187 

150 

130

123 

125 

162

150 

147

189 

238 

298 

310 

352

356 

356 

352 

340 

336

340 

340 

336 

336 

336

Secondfoot-days

93.2

154.6 

170.6

11,891.8

936.4 

1,540 

2,334 

7,368 

9,396 

6,779 

1,154 

224.8 

50.9

30,201.5

May

325 

292 

292 

235 

214

205 

179 

164 

171 

200

256 

306 

329 

344 

348

348 

348 

348 

344 

348

348 

544 

344 

348 

352

348 

344 348' 

344 

344 

, 336

Maximum

3.9 

7.4 

7.0

251

87 

85 

97 

356 

352 

332 

111 

10 

2.9

356

June

332 

329 

325 

325 

325

321 

302 

281 

278 

267

285 

278 

254 

168 

163

281 

193 

132 

132 

132

197 

251 

245 

229 

164

139 

127 

123 

100 

101

July

111 

109 

101 

92 

80

70 

63 

32 

21 

36

40 

40 

37 

33 

29

26 

24 

23 

22 

20

18 

16 

15 

14 

13

12 

12 

12

11 

11 

11

Minimum

2.4 

2.6

4.7

2.1

4.7 

34 

52 

92 

164 

100 

11 

2.2 

.8

.8

Aug.

10 

9.9 

9.6 

9.6 

8.9

8.2 

a8.2 

a8.0 

a8.0 

a8.0

a .8 

a .8 

a .8 

a .6 

.6

.6 

.6 

.6

.0

.0

.0 

.0 

.8 

.8

6.0 

5.2 

5.2 

4.3 

3.7 

2.2

Mean

3.01 

5.15 

5.50

32.6

30.2 

55.0 

75.3 

246 

303 

226 

37.2 

7.25 

1.70

82.7

Sept.

2.1 

2.0 

1.7 

1.6 

1.4

1.2 

1.1 

.8 

.8 

.8

.8 

.8 

.9 

.9

1.0

1.6 

2.1 

2.4 

2.7 

2.9

2.7 

2.6 

2.2 

2.1 

2.1

2.0 

2.0 

2.0 

1.8 

1.8

Runoff in 

acre-feet

185 

307 

338

23,590

1,860 

3,050 

4,630 

14,610 

18,640 

13,450 

2,290 

446 

101

59,910

a No gage-height record; discharge interpolated.
FEATHER RIVER BASIN 357

Oregon Creek near North San Juan, Calif.

Location. Water-stage recorder, lat. 39°24', long. 121°05', in SWf sec. 22, T. 18 N., R.

8~ET7 1 mile upstream from mouth and 3 miles northeast of North San Joan. Altitude of

gage, about 1,500 feet (from topographic map). 

Drainage area.--35.1 square miles. 

Kecorgs available.--October 1933 to September 1950. October 1910 to September 1933 at

site O.Y mile downstream.

Average discharge. 39 years (1911-50), 73.0 second-feet. 

Extremes. Maximum discharge during year, 1,710 second-feet Jan. 18 (gage height, 7.80

reet); minimum, 1.9 second-feet Aug. 28 (gage height, 1.52 feet), but may have been

less during period of ice effect.

1910-50: Maximum discharge observed, about 4,000 second-feet Mar. 25, 1928 (gage

height, 9.5 feet, site and datum then in use), from rating curve extended above 600

second-feet; minimum, 0.7 second-foot on several days in July, August 1931, September

Remarks. Records good except those for period of ice effect, which are fair. Small

diversion above station for irrigation and mining. 

Revisions (water years). W 861: 1927(M), 1928.

Rating table, water year 1949-50, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

1.5 1.6 2.0 16 3.0 66 4.8 308 

1.6 3.2 2.2 24 3.3 90 5.2 412 

1.7 5.5 2.4 32 3.6 117 5.6 540 

1.8 8.5 2.6 41 4.0 169 6.0 705 

1.9 12 2.8 52 4'. 4 231 6.4 900

Discharge, in second- feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16

i^ 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.5 

2.5 

2.5 

2.5 

2.5

2.7 

2.8 

3.0 

3.0 

3.2

3.2 

3.0 

2.8 

2.8 

2.8

3.0 

3.0 

2.8 

3.0 

3.2

3.2 

3.2 

3.2 

3.2 

3.2

3.2 

3.2 

3.2 

3.2 

3.2 

3.0

Nov.

3.0 

2.8 

2.8 

3.0 

2.8

3.0 

3.2 

3.8 

13 

29

17 

9.8 

7.5 

6.3 

5.8

5.5 

5.2 

5.2 

5.0 

5.0

4.8 

4.8 

4.8 

4.8 

4.8

4.8 

4.8 

4.5 

4.5 

4.5

Dec.

4.5 

4.5 

4.3 

4.3 

6.6

6.9 

5.5 

5.2 

5.0 

5.0

4.5 

4.3 

»5.0 

5.0 

5.8

7.5 

15 

20 

22 

10

8.5 

7.5 

6.9 

6.9 

6.0

6.0 

6.0 

6.3 

6.0 

6.0 

5.5

Jan.

b4.5 

b5 

b2 

b2 

b2.7

b4 

b4 

b4 

b4 

b4

b4 

b4.5 

b4.5 

b4.5 

b5

25 

380 

595 

136 

94

287 

378 

768 

320 

166

112 

97 

114 

92 

75 

64

Feb.

53 

46 

49 

638 

770

896 

*374 

241 

182 

169

166 

136 

122 

116 

117

127 

132 

127 

127 

127

122 

117 

114 

113 

119

123 

131 

128

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Itev

June 

July 

Augu 

Sept

Ha

ber. ....................................

mber. ............ .....----.-..-. .

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

122 

118 

115 

116

131

127 

115 

105 

100 

91

80 

BO 

76 

72 

67

65 

162 

141 

496 

340

241 

298 

259 

368 

276

217 

225 

209 

193 

196 

217

Apr.

225 

229 

225 

209 

212

320 

332 

325 

261 

226

209 

210 

308 

255 

225

212 

204 

199 

198 

196

193 

187 

174 

153 

136

127 

124 

118 

108 

99

Secondfoot-days

91.8 

185.8 

222.5

16,406.8

3,761.7 

5,682 

5,428 

6,199 

2,585 

593 

203.8 

103.2 

85.4

25,141.2

Peak discharge [base, 410 sec. -ft.). Jan. 18 (2 a.m.)

May

134 

134 

112 

105 

108

111 

105 

99 

97 

99

103 

104 

105 

104 

101

95 

93 

86 

80 

74

68 

64 

59 

56 

51

47 

44

42 

38 

35 

32

Maximum

3.2 

,29 

22

309

768 

896 

496 

332 

134 

31 

10. 

4.3 

3.6

896

June

31 

30 

28 

26 

24

25 

26 

24 

23 

24

25 

26 

23 

21 

20

20 

19 

18 

17 

16

16 

13 

14 

14 

13

13 

11 

12 

11 

10

July

10 

9.5 

9.5 

9.2 

8.8

7.5 

7.5 

7.5 

7.2 

7.8

8.8 

7.2 

6.9 

7.5 

6.9

6.6 

6.3 

6.0 

5.5 

5.5

5.5 

5.5 

5.2 

5.2 

5.0

4.8 

4.3 

4.3 

4.3 

4.0 

4.0

Aug.

4.0 

3.8 

4.0 

3.8 

4.3

4.3

4.0 

4.0 

3.8 

3.8

3.8 

3; 8 

3.8 

3.6 

3.2

3.2 

3.2 

3.2 

3.2 

3.0

2.7 

2.5 

2.5 

2.8 

2.7

2.8 

3.0 

2.7 

2.5 

2.5 

2.7

Sept.

2.7 

2.7 

2.3 

2.3 

2.3

2.3 

2.5 

2.5 

2.7 

2.8

2.7 

2.8 

3.2 

3.0 

2.8

2;8 

2.8 

3.2 

3.6 

3.4

3.2 

3.2 

3.2 

3.0 

2.8

2.8 

2.8 

3.0 

3.0 

3.0

«*» -ean «£«£

2.5 2.96 182 

2.8 6.19 369 

4.3 7.18 441

2.0 44.9 32,540

2 121 7,460 

46 203 11,270 

65 175 10;770 

99 207 12,300 

32 83.4 5,130 

10 19.8 1,180 

4.0 6.57 404 

2.5 3.33 205 

2.3 2.85 169

2 68.9 49,880

1,710 sec. -ft.; Jan. 23 (9:30 a.m.) 1,380

aec.-ft.; Feb. 6 (5 a.m.) 1,310 sec.-ft.; Mar. 19 (1 p.m.) 970 sec.-f 

ft.

* Winter discharge measurement made on this day. 

( b Stage-discharge relation affected by Ice.

207481 O - 52 - 24

V
358 FEATHER RIVER BASIN

North Yuba River below Goodyears Bar, Calif. 

(Formerly published as North Pork Yuba River below Goodyears Bar)

Location. Water-stage recorder, lat. 39°32', long. 120°56', in SW£ sec. 11, T. 19 N., R. 

a £., 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 1950 (discontinued).Prior to October 1949 published as North Pork Yuba River below Goodyears 

Bar.

Average discharge. 17 years (1931-37, 1939-50), 695 second-feet.

Extremes.--Maximum discharge during year, 4,600 second-feet Feb. 6 (gage height, 9.04 feet); 

minimum, 91 second-feet Jan. 3, but may have been less during period of ice effect.

1930-50: 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 driftvelocity measurement at 18,000 second-feet; minimum, 69 second-feet Aug. 26, 1931.

Remarks. Records good except those for period of ice effect, which are fair, 

small diversions above station' for irrigation and mining.

Revisions (water years). W 1041: 1944.

Rating ta*ble, water year 1949-5O, except period of Ice effect 

(gage height, In feet, and discharge, In second-feet)

Several

1.4 95 3.0 303 6.0 l,60o 

1.5 103 3.5 420 6.5 1.96O 

1.8 132 4.0 585 7.O 2,380 

2.1 166 4.5 780 7.5 2,850 

2.4 2O8 5.O 1.O1O 8.O 3,370 

2.7 255 5.5 1,290 8.5 3.94O

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1O8 

1O8 

108 

106 

106

107 

115 

114 

114 

120

119 

116 

112 

110 

1O9

108 

108 

110 

113 

115

115 

114 

113 

113 

112

112 

111 

111 

110 

108 

108

Nov.

1O8 

108 

108 

108 

108

107 

109 

125 

267 

281

179 

153 

152 

146 

142

142 

140 

136 

135 

134

132 

131 

129 

136 

138

134 

131 

145 

144 

135

Dec.

13O 

127 

124 

122 

139

128 

126 

124 

122 

119

109 

114 

*11S 

118 

125

135 

176 

205 

182 

136

132 

133 

132 

128 

126

124 

123 

124 

127 

126 

122

Jan.

122 

127 

112 

blOO 

bloo

tloo

blOO 

blOO 

blOO 

blOO

blOO 

blOO 

b!05 

bllo 

b!20

172 

796 

1,820 

919 

652

1,670 

2,520 

3,060 

1,76O 

1,030

756 

660 

61O 

522 

469 

423

Feb.

380 

359 

361 

2,260 

2,530

3,460 

*1,690 

1,170 

942 

888

843 

748 

70O 

684 

716

772 

764 

752 

772 

780

752 

732 

724 

736 

789

834 

892 

888

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Wav

June 

July 

Augu 

Sept

wa

ber. ....................................

lendar year 1949 

apy

Mar.

861 

843 

825 

870 

985

897 

807 

760 

716 

676

656 

596 

571 

546 

529

522 

802 

764 

1,690 

1,610

1,240 

1,670 

1,43O 

1,360 

1,500

1,080 

1.O40 

1,010 

98O 

1,O3O 

1,150

Apr.

1, 

1, 

1, 

1, 

1,

2, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1,

1,

1, 

1, 

1, 

2, 

2,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

1, 

1,

Secondfoot-days

3,453 

4,243 

4,076

164,435

19,435 

27,918 

30,016 

56,640 

65,680 

37,501 

11,080 

5,718 

4,441

270,201

250 

390 

46O 

430 

54 O

190 

940 

7 SO 

510 

370

29O 

330 

780 

530 

450

590 

7 SO 

930 

170 

510

690 

79O 

61O 

34O 

210

280 

370 

250 

980 

9OO

May

2,010 

1,690 

1,480 

1,360 

1,320

1,270 

1,170 

1,110 

1,130 

1,240

1,420 

1,580 

1,850 

2,160 

2.43O

2,530 

2,570 

2,470 

2,360 

2,460

2,690 

2,800 

2.8OO 

2,79O 

2,800

2.69O 

2,710 

2,710 

2,650 

2,680 

2,750

Maximum

120 

Z81 

205

2.9OO

3,060 

3.46O 

1,690 

2,790 

2,800 

2,630 

668 

223 

167

3,460

June

2,630 

2.48O 

2,180 

2,010 

1,940

1,780 

1,470 

1,280 

1,220 

1,190

,3OO 

,170 

,O9O 

,080 

,06O

,060 

,04O 

1,020 

1,O40 

1,090

1,100 

1,030 

990 

892 

8O7

756 

720 

700 

696 

680

July

668 

636 

596 

554 

512

476 

447 

423 

404 

407

394 

368 

355 

338 

328

316 

3O6 

290 

290 

281

274 

257 

262 

257 

252

242 

237 

233 

231 

226 

220

Aug.

220 

223 

218 

216 

218

217 

211 

2O5 

202 

199

199 

199 

193 

187 

186

ISO 

178 

174 

171 

166

166 

164 

166 

166 

165

161 

160 

154 

153 

151 

150

Minimum Mean

106 111 

107 141 

109 131

105 451

100 627 

359 997 

522 968 

1,250 1,888 

1,110 2,119 

680 1,25O 

220 357 

ISO 184 

138 148

1OO 740

Sept.

150 

147 

145 

144 

143

142 

145 

145 

144 

164

167 

159 

156 

153 

151

150 

152 

161 

160 

153

147 

145 

142 

142 

139

14O 

140 

138 

138 

139

Runoff In 

acre-feet

6,850 

8,420 

8,080

326,200

38,550 

55,370 

59,540 

112,300 

13O.3OO 

74,380 

21,980 

11,340 

8,810

535,900

Peak discharge (base, 3.20O sec. -ft. ) .--Jan. 23 (1:30 p.m.) 4.O4O sec. -ft.; Feb. 6 (4 a.m.) 4,600

sec.-ft.; May 27 (9:30 p.m.} 3,320 sec.-ft.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by lee.
FEATHER RIVER BASIN 359

North Yuba River at Colgate diversion dam, Calif. 

(Formerly published as North Fork Yuba River at Colgate diversion dam)

Location.--Water-stage recorder, lat. 39°23', long. 121°09', near center of sec. 25, T. 

ia w., R. 7 E., 200 feet upstream from Colgate diversion dam, 1.5 miles upstueam from 

Middle Yuba River, and 1.5 miles downstream from Bollards Bar Dam. Altitude of gage, 

about 1,250 feet (from topographic map).

Drainage area.--484 square miles.

Records available. December 1940 to September 1950. Prior to October 1949, published as

wortn tforK Yusa River at Colgate diversion dam.

Extremes. Maximum discharge during year, 13,300 second-feet Feb. 6, from rating curve extended above 5,800 second-feet; no flow Oct. 22, 23.

1940-50: Maximum discharge, 44,200 second-feet Jan. 21, 1943, from rating curve extended above 23,000 second-feet on basis of velocity-area studies and computation of 

flows over Bullards Bar Dam; no flow Oct. 22, 23, 1950.

Remarks. Records fair. 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 alDove station.

Cooperation. Discharges for Colgate tunnel and through Bullards Bar powerhouse furnished 

oy raciric Gas & Electric Co.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

£5

26 

27 

28

£9 

30

31

Oct.

172 

172 

260 

469 

468

469 

467 

464 

458 

386

450 

421 

332 

328 

322

310 

308 

288 

241 

240

231 

0 

0 

240 

189

238 

238 

238 

228 

202 

174

Nov.

172 

150 

142 

142 

143

143 

143 

140 

140 

185

319 

361 

311 

284 

268

288 

286 

279 

270 

265

257 

257 

255 

251 

247

235 

221 

202 

210 

222

Dec.

222 

2U 

207 

197 

177

192 

198 

188 

181 

168

177 

172 

172 

172 

172

172 

141 

65 

65 

65

65 

98 

216 

220

199

220 

206 

197 

189 

190 

195

Jsn.

199 

202 

194 

154 

169

165 

163 

178 

213 

280

376 

371 

366 

310 

' 321

317 

345 

2,050 

2,640 

1,600

2,310 

6,020 

6,570 

5,060 

2,480

1,690 

1,380 

1,350 

1,180 

1,030 

962

Feb.

852 

786 

753 

5,410 

7,390

10,200 

5,080 

3,260 

2,450 

2,160

2,120 

1,830 

1,660 

1,560 

1,560

1,690 

1,730 

1,690 

1,700 

1,740

1,670 

1,620 

1,600 

1,570 

1,660

1,760 

1,900 

1,970

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

her. ....................................

rnber ............-----.-.-...--.--.--.--

lendar year 1949

ter year 1949-50 .......................

Mar.

1,900 

1,840 

1,800 

1,840 

2,04O

2,090 

 1,830 

1,660 

1,570 

1,460

1,410 

1,300 

1,230 

1,180 

1,140

1,130 

1,500 

1,930 

3,340 

4,680

3,O80 

3,940 

3,800 

3,740 

3,320

2,760 

2,640 

2,480 

2,320 

2,270 

2,560

Apr.

2,730 

2,990 

3,220 

3,120 

3,170

4,990 

4,820 

4,500 

3,680 

3,170

2,900 

2,850 

3,920 

3,580 

3,170

3,260 

3,640 

3,960 

4,290 

4,820

5,250 

5,360 

5,250 

4,610 

4,140

4,170 

4,250 

4,170 

3,600 

3,360

Secondfoot-days

9,003 

6,808 

5,315

305,830

40,645 

69,371 

69,780 

116,940 

103,240 

52,209 

17,766 

9,469 

7,390

507,936

May

3,600 

3,360 

2,990 

2,640 

2,530

2,530 

£,410 

2,220 

2,220 

2,310

2,530 

2,870 

3,030 

3,450 

3,920

4,040 

4,040 

3,880 

3,600 

3,600

3,840 

4,040 

4,040 

4,000 

3,940

3,780 

3,620 

3,700 

3,470 

3,510 

3,530

Maximum

469 

361 

222

4,690

6,570 

10,200 

4,680 

5,360 

4,040 

3,410 

947 

530 

368

10,200

June

3,410 

3,190 

3,100 

£,740 

2,630

2,520 

2,210 

1,8£0 

1,730 

1,660

1,740 

1,730 

1,570 

1,560 

1,480

1,480 

1,480 

1,480 

1,480 

1,480

1,480 

1,480 

1,320 

1,320 

1,190

1,060 

1,010 

953 

953 

953

July947 

891 

842 

793 

759

697 

646 

597 

564 

539

551 

575 

575 

533 

482

389 

430 

452 

413 

387

407 

546 

530 

541 

544

542 

535 

526 

528 

485 

520

Minimum

0 

140 

65

0

154 

753 

1,13O 

2,730 

2,220 

953 

387 

65 

117

0

Aug.

530 

430 

316 

252

115

115 

250 

250 

250 

313

314 

209 

209 

313 

369

365 

369 

372 

168 

65

320 

364 

368 

347 

360

299 

328 

510 

480 

239 

280

Mean

290 

227 

171

838

1,311 

2,478 

2,251 

3,896 

3,330 

1,740 

573 

305 

246

1,392

Sept.

242 

213 

213 

220 

283

283 

270 

282 

161 

178

278 

278 

253 

275 

275

117 

117 

203 

203 

368

356 

329 

283 

262 

226

206 

227 

300 

249 

240

Runoff in 

acre-feet

17,860 

13,500 

10, 540

606,600

80,6£0 

137,600 

138,400 

231,900 

204,800 

103,600 

35,240 

18,760 

14,660

1,008,000

Note. Mo gage-height record Oct. 1 to Nov. 29, Sept. 3-30, diversion to Colgate tunnel Nov. 3O to 

Jan. 18, May 3-12, June 3 to sept. £j discharge is flow at Bullards Bar powerhouse.
360 FEATHER RIVER BASIN

South Yuba River near Cisco, Calif. 

(Formerly published as South Fork Yuba River near Cisco)

Location. Water-stage recorder, lat. 39°19', long. 120°33', in sec. 19, T. 17 N., R. 13 

E., u.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 1950. 

south jrorK Yuoa River near Cisco.

Prior to October 1949, published as

Extremes. Maximum discharge during year, 1,900 second-feet May 24 (gage height, 7.45 

reet}; minimum, 2.3 second-feet Oct. 17, 18.

1942-50: 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 shifting control, 

which are fair. Low flow regulated by Lake Van Norden.

Rating table, water year 1949-50, except periods of ice effect

(gage height, in feet, and discharge, in aeoond-feet)

(Shifting-control method used Feb. 7-26)

1.7 1.8 2.4 27 4.5 485 

1.8 3.4 2.6 43 5.0 670 

1.9 5.6 2.9 76 5.6 915 

2.0 8.5 3.2. 122 6.0 1,100 

2.1 12 3.5 189 6.5 1,360 

2.3 21 4.0 322

Discharge, In second-feet, Mater year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.9 

5.2 

4.1 

3.4 

3.2

3.2 

4.1 

3.6 

3.1 

4.1

4.3 

3.6 

3.2 

3.1 

2.8

2.8 

2.4 

2.6 

3.2 

. 3.4

3.4 

3.2 

3.1 

3.1 

3.1

3.1 

4.7 

5.4 

5.4 

5.2 

5.2

Mov.

5.2 

5.2 

5.2 

5.2 

5.2

4.9 

5.2 

8.5 

13 

10

9.2 

9.6 

9.2 

8.5 

8.2

7.9 

7.6 

7.3 

7.9 

7.6

7.6 

7.6 

7.6 

8.5 

9.2

9.6 

11 

14 

14 

12

Dec.

11 

9.6 

8.5 

7.3 

7.9

7.6 

7.0 

6.5 

5.6 

4.9

4.3 

3.8 

3.4 

3.2 

3.4

3.6 

4.1 

4.9 

5.2 

4.7

4.7 

4.5 

4.5 

4.5 

4.5

4.5 

4.5 

4.9 

5.2 

5.4 

5.4

Jan.

5.2 

5.2 

5.4 

5.4 

5.2

5.2 

4.9 

6.8 

6.2 

5.6

4.7 

6.2 

6.5 

7.3 

6.5

7.6 

253 

604 

316 

525

453 

704 

503 

248 

165

132 

100 

80 

77 

79 

65

Feb.

b60 

b55 

b55 

143 

187

302 

118 

98 

88 

84

82 

74 

72 

74 

84

100 

92 

96 

113 

118

109 

115 

124 

128 

150

189 

203 

189

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

Mav.

June 

July 

Augu 

Sept

Wa

mber. ............-..--..-....---.-

lendar year 194S 

az*y

ter year 1949-50 .......................

Mar.

187 

184 

184 

233 

259

177 

139 

122 

108 

95

89 

80 

79 

76 

79

85 

113 

111 

373 

346

218 

391 

241 

177 

150

118 

106 

101 

118 

156 

236

Apr.

307 

407 

441 

441 

475

560 

319 

230 

189 

b!50

b!50 

203 

286 

b200 

254

420 

557 

646 

765 

884

938 

1,100 

1,080 

897 

888

1,000 

1,030 

870 

715 

765

Secondfoot-days

120.2 

251.7 

169.1

48,279.0

4,397.9 

3,203 

5,131 

17,187 

27,879 

14,832 

2,501 

962 

875

77,488.9

Peak discharge (base, 1,500 sec. -ft.). Hay 16 (9 p.m.

May

730 

468 

352 

284 

284

278 

241 

241 

295 

152

668 

806 

960 

1,120 

1,180

1,210 

1,170 

1,100 

1,090 

1,150

1,290 

1,310 

1,300 

1,310 

1,320

1,240 

1,300 

1,230 

' 1,230 

1,270 

1,300

Maximum

9.9 

14 

11

1,600

704 

203 

391 

1,100 

1,320 

1,180 

206 

66 

41

1,320

June

1,180 

1,180 

960 

902 

879

.690 

454 

365 

407 

465

492 

391 

387 

391 

458

451 

417 

468 

514 

528

482 

444 

358 241' 

223

223 

218 

218 

228 

218

July

206 

167 

137 

115 

90

53 

44 

40 

35 

34

34 

30 

32 

100 

98

95 

92 

90 

89 

88

84 

82 

80 

77 

77

75 

75 

74 

71 

69 

68

Aug.

66 

64 

62 

60 

57

55 

53 

51 

48 

45

42 

39 '38 

32 

17

13 

14 

12 

15 

16

16 

15 

16 

15 

15

15 

15 

14 

14 

14 

14

Sept.

24 

31 

31 

31 

30

30 

30 

28 

25 

32

31 

31 

30 

28 

28

28 

30 

30 

29 

28

28 

41 

27 

27 

27

27 

27 

27 

27 

32

« ~» 553£

2.4 3.68 238 

4.9 8.39 499 

3.2 5.45 335

2.4 132 95,750

4.7 142 8,720 

55 114 6,350 

76 166 10,180 

150 572 34,050 

152 899 55,300 

218 494 29,420 

30 80.7 4,960 

12 31.0 1,910 

24 29.2 1,740

2.4 212 153,700

1,650 sec. -ft.; May 24 (8:30 p.m.) 1,900

sec.-ft.

b Stage-discharge relation affected by Ice.
FEATHER RIVER BASIN 361

South Yuba River near Washington, Calif. 

(Formerly published as South Fork Yuba River near Washington)

Location. Water-stage recorder, lat. 39°22', long. 120°45', in SE£ sec. 5, T. 17 N., R.

 11 E., 0.2 mile downstream from Canyon Creek and 2.3 miles east of Washington. Altitude of gage, about 2,810 feet (from topographic map). 

Drainage area.--197 square miles. 

Records available.--October 1948 to September 1950. March 1942 to September 1948 at site

 0.8'mile downstream. Prior to October 1949, published as South Fork Yuba River near

Extremes. Maximum discharge during year, 4,230 second-feet May 31 (gage height, 11.15

reet); minimum, 13 second-feet Sept. 5, 6.

1942-50: Maximum discharge, 20,300 second-feet Jan. 21, 1943 (gage height, 13.8

feet, site and datum then in use), from rating curve extended above 6,600 second-feet

by logarithmic plotting; minimum, that of Sept. 5, 6, 1950. 

Remarks.--Records good. Flow regulated by Lake Spaulding (capacity, 70,500 acre-feet),

 Bowman Lake (see p. 362), and by many smaller reservoirs. Diversion for power and 

irrigation above station.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, in second-feet)

4.0 9.5 5.4 173 8.0 1,040 

4.1 16 5.8 244 9.0 1,690 

4.4 45 6.3 362 9.6 2,230 

4.7 77 6.8 510 10.2 2,940 

5.0 115 7.4 740 10.8 3,740

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

20 

20 

20 

20 

19

20 

23 

22 

23 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20 

20

Nov.

20 

20 

18 

17 

17

17 

18 

29 

112 

128

56 

41 

41 

49 

36

29 

27 

25 

24 

23

23 

22 

23 

23 

22

21 

21 

20 

19 

42

Dec.

40 

36 

23 

16 

20

19 

21 

24 

26 

18

15 

16 

22 

19 

24

28 

35 

45 

39 

29

26 

28 

30 

28 

23

23 

22 

23 

26 

25 

23

Jan.

23 

24 

19 

23 

20

21 

21 

24 

23 

25

28 

28 

28 

93 

41

59 

720 

737 

277 

206

627 

774 

1,050 

395 

211

160 

135 

142 

115 

99 

90

Feb.

81 

75 

82 

1,140 

819

1,240 

495 

354 

268 

266

259 

217 

201 

194 

210

213 

201 

194 

201 

196

181 

181 

179 

186 

201

210 

215 

204

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hay.

June 

July 

Augu 

Sept

Ha

 ber. ...........-----------------..-----

lendar year 194

ter year 1949-50 .......................

Mar.

194 

189 

186 

196 

234

199 

176 

166 

160 

149

150 

139 

135 

132 

129

129 

245 

203 

556 

349

255 

392 

310 

314 

264

238 

238 

230 

242 

284 

312

Apr.

1 

1 

1

Secondfoot-days

627 

983 

792

35,214

6,238 

8,465 

7,095 

13,956 

54,315 

25,479 

1,353 

530 

474

120,307

310 

310 

293 

275 

284

402 

414 

362 

310 

286

277 

277 

427 

307 

286

307 

319 

336 

344 

362

420 

462 

432 

376 

402

778 

360 

390 

030 

818

Hay

992 

641 

39Q 

324 

322

317 

298 

281 

246 

234

334 

866 

1,490 

1,600 

2,200

2,980 

2,880 

2,790 

2,820 

2,790

3,140 

3,520 

3,340 

3,280 

2,830

1,670 

1,350 

2,060 

2,020 

2,640 

3,670

Maximum

23 

128 

45

900

1,050 

1,240 

556 

1,390 

3,670 

2,780 

168 

21 

21

3,670

June

2,780 

2,290 

2,470 

1,830 

1,440

1,170 

992 

612 

468 

324

490 

652 

514 

495 

474

872 

781 

663 

694 

785

965 

870 

652 

432 

334

281 

284 

290 

298 

277

July

168 

152 

123 

106 

101

85 

58 

30 

25 

31

32 

30 

29 

28 

26

26 

25 

24 

24 

20

20 

20 

20 

20 

20

19 

18 

19 

19 

18 

17

Aug.

17 

18 

18 

18 

20

20 

19 

21 

21 

21

19 

18 

17 

16 

16

16 

16 

17 

16 

16

16 

16 

15 

16 

16

16 

15 

16 

15 

15 

14

MlnlBum Mean

19 20. 2 

17 32.8 

15 25.5

15 96.5

19 201 

75 302 

129 229 

275 465 

234 1,752 

277 849 

17 ' 43,6 

14 17.1 

13 15.8

13 330

Sept.

14 

14 

14 

14 

13

13 

14 

15 

14 

14

19 

17 

16 

15 

15

15 16 

21 

20 

18

16 

16 

16 

16 

16

16 

17 

17 

17 

16

Runoff In 

acre-feet

1,240 

1,950 

1,570

69,850

12,370 

16,790 

14,070 

27,680 

107,700 

50,540 

2,680 

1,050 

940

238,600

Mote. No gage-height .record Oct. 

stage.

10 to Nov. 2] discharge computed on basla of recorded range In
362 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 sea level.

Drainage area.--30 square miles.

Records available. December 1926 to September 1950.

Extremes. Maximum contents observed during year, 70,500 acre-feet May 28 (elevation, 

i>,565.9 feet); no contents Nov. 25 to Dec. 9, 1949, lake completely drained.

1926-50: Maximum contents observed, 70,500 acre-feet June 16, 17, 1937, June 1, 

1943, May 28,.1950 (elevation, 5,565.9 feet); no contents Nov. 25 to Dec. 9, 1949.

Remarks. Lake is formed by one rock-fill and one concrete-arch dam; completed and storage 

Began in November 1926. Capacity, 68,200 acre-feet between elevations 5,400 feet 

(bottom of outlet tunnel) and 5,563 feet (crest of concrete-arch dam) above mean sea 

level. Flashboards are occasionally added, increasing elevation to 5,564.5 feet and 

capacity to 69,400 acre-feet. Lake receives water from Middle Fork Yuba River through 

Milton-Bowman tunnel (see p. 356), and releases it through Bowman-Spatilding Canal (see 

p. 364) which conveys it to reservoirs of Pacific Gas & Electric Co/ Water is eventually'used for irrigation by Nevada Irrigation District. Record of contents, compufed . 

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 194B to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

23,300

22,900

22,400

21,500

21,000

20,600

20,400

20,000

19,400

18,600

18,000

17,600

17,200

16,700

16,200

15,600

15,400

15,000

14,600

14,100

13,600

13,200

12,SOO

12,200

12,000

11,600

11,000

10,600

10,200

Nov.

9,720

9,200

8,790

8,400

8,040

_

_

_

-

5,610

5,190

4,600

4,100

3,700

3,440

3,200

2,980

2,140

1,800

1,450

0

O

0

0

0

0

Dec.

0

0

0

0

0

0

0

O

O

0

2,140

_

3,460

4,350

_

_

-

_

6,510

-

6,900

_

7,200

-

Jan.

7,560

_

_

-

7,500

_

_

-

_

_

_

_

-

_

_

_

_

7,800

.

11,200

_

-

_

_

_

_

_

-

Feb.

.

_

_

_

-

_

_

_

_

-

_

_

_

-

_

_

_

_

-

.

20,400

:

-

_

_

21,400

_

-

Mar.

21,900

Apr.

_

_

_ 

_

-

_

_

_

_

-

_

31,000

_

r

-

33,000

-

_

34,400

35,400

38, 600

_

42,100

-

46,300

45,000

52,200

_

.

-

Hay

_

_

_

-

_

58,700

-

-

60, 400

_

-

64,000

65,800

65,SOO

65,800

65,800

65,800

65,800

65,SOO

65,800

65,800

65,8OO

65,900

67,000

68,500

70,200

70,500

70,100

70,400

70,400

June

_

70,100

70,200

70,400

70,400

70,400

70,300

70,300

70,400

70,400

70,400

-

-

70,400

70,400

70,400

70,400

70, 400

70,400

-

70,400

70,400

70,400

70,400

70,300

70,300

70,400

-

. 70,300

-

-

July

70,400

70,300

70,200

70,100

-

69,200

69,100

68, 800

68,600

-

_

67,700

-

-

-

66,400

-

-

-

64,800

_

-

-

63,100

-

_

-

-

-

-

-

Aug.

_

-

57,800

-

-

_

53,400

- -

-

-

_

-

-

53,800

-

_

53,000

-

51,700

-

_

51,000

-

50,000

-

_

-

48,100

-

-

47,800

Sept.

_

-

56,300

-

-

-

57,206

-

49,800

-

_

-

-

50,000

-

_

-

50,100

-

50,OOO

50,000

-

50,000

-

49,900

_

49,800

-

-

-

-

Monthly elevation and- contents, water year October 1949 to September 1950

Date

Dec. 31. .....................

Sept. 30...... ................

Water year 1949-5O. ........

Elevation 

(feet)

-

-

,_

-

Contents 

(aere-feet)

e7,440

-

e49,400

-

Change In contents 

during month 

(acre -feet)

+7,440

-2,560

+1,600

+25,600

e Computed on basis of Inflow and outflow records or Interpolated.
FEATHER RIVER BASIN 363

Canyon Creek below Bowman Lake, Calif.

Location. Water-stage recorder and concrete control, lat. 39°26', long. 120°40', In SE£ 

sec. v, 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 1950.

Average discharge. 23 .years, 33.5 second-feet.

Extremes. Maximum discharge during year, 1,520 second-feet May 16 (gage height, 5.61 

reet); minimum daily, 0.1 second-foot Oct. 1-6, Dec. 3, 4, 7

1927-50: 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 except those for periods of fragmentary or no gage-height record, 

which are fair. Plow regulated by Bowman Lake beginning in 1926 (see preceding page) 

and diversion into Bowman-Spauldlng Canal (see following page). Bowman Lake receives 

water from Middle Pork Yuba River through Milton-Bowman tunnel (see p. 356).

Cooperation. Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, in second-feet)

1.0 0.1 1.5 4.9

1.2 1.7 1.9 17 

1.3 2.7 2.1 37

Discharge, in second-feet, water yea

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

3O 

31

Oct.

O.I

.1 

.1 

.1 

.1

.1 

;2 

.2 

.2 

.3

.3 

.4 

.6 

.6

.5

.5 

.6 

.5 

.5 

.6

.6 

.6 

.6 

.6 

.5

.5 

.6 

.6 

.6 

.5 

.5

Mov.

O.4 

.4 

.5 

.6 

a.S

a.S 

a.S 

a.S 

a.S 

a.S

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

1.0 

1.0

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

14 23'

Dec.

22 

23 

.1 

.1 

.4

.2 

.1 

.5 

.7 

.7

2.1 

.6 

.5 

.6 

.6

.6 

.6 

.7 

1.2 

1.5

.7 

.6 

.6 

.6 

.7

.6 

.8 

.6 

.6 

.6 

.6

Jan.

0.6 

.6 

.6 

.6

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.&> 

1.1

2.0 

2.7 

4.1 

5.2 

6.2

94 

48 

71 

8.2 

5.9

5.9 

6.2 

7.0 

6.7 

6.4 

6.7

Feb.

6.2 

5.0 

2.9 

40 

28

22 

4.O 

2.7 

4.7 

3.S

3.8 

3.7 

3.7 

3.8 

4.4

4.2 

4.4 

5.0 

5.6 

5.3

5.4 

2.4 

2.5 

3.4 

2.9

2.3 

2.3 

2.4

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Mftv

June 

July 

Augu 

Sept

Ha

lendar year 194$

f

ter year 1949-50 .......................

Mar.

2.6 

2.2 

2.2 

2.7

2.7 

2.4 

1.9 

2.0 

1.7

1.7 

1.6 

1.5 

1.5 

1.5

1.5 

2.3 

3.0 

3.2 

3.1

7.8 

2.8 

2.9 

2.1 

2.0

1.9 

' 1.9 

1.8 

1.8 

1.7 

3.1

2.4 

2.8 

3.2 

3.6

r Oc

76 4.0 484 

146 4.5 70O 

238 5.0 1,000 

34S 5.5 1,410

tober 1949 to September 195O

Apr.

5.0 

6.4 

5.7 

3.8 

5.3

8.0 

3.6 

3.5 

2.7 

2.9

3.0 

2.3 

2.3 

2.8 

3.8

5.0 

5.8 

6.8 

9.6 

14

17 

19 

20 

12 

5.3

4.1 

4.9 

4.6 

5.2 

3.9

foo°t%s

12.8 

60.1 

63.8

461.2

295.9 

186.8 

73.6 

198.3 

13,611.1 

10,454 

189.3 

11.9 

14.2

25,171.8

May

3.9 

3.9 

3.9 

3.6 

2.5

2.1 

1.8 

1.7 

2.4 

t.5

2.7 

3.0 

3.1 

83 

489

1,130 

1,360 

1,250 

958 

810

799 

822 

816 

799 

799

217 

104 

845 

766 

750 

777

Maximum

0.6 

23 

23

23

94 

40 

7.8 

20 

1,360 

. 750 

76 

.5 

.6

1,360

June

750 

675 

540 

414 

473

473 

421 

367 

280 

209

219 

238 

315 

354 

282

421 

4O4 

312 

282 

274

304 

407 

383 

339 

343

202 

204 

216 

221 

132

July

76 

39 

21 

16 

13

f7.0 

f3.8 

1.0 

.9 

- .7

.7 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6

.5 

.5 

.4

.4 

.4 

.4 

.4 

.3 

.2

Aug.

0.3 

.2 

.2 

.4 

.4

.4 

.4 

.4 

.4 

f .4

f.4 

.4 

.4 

.3 

.2

.2 

.4

 .5 

.5 

.5

.4 

.5 

.4 

.5 

.4

.5 

.4 

.4 

.4 

.4 

.3

Sept.

0.3 

.3 

.3 

.3 

.4

.4 

.4 

.4 

.5 

.5

.5 

.6 

.5 

.5 

.5

.5 

.4 

.4 

.5 

.5

.5 

.5 

.5 

.6 

.5

.5 

.6 

.6 

.6 

.6

Minimum Mean acre-feet

0.1 0.41 25 

.4 2.00 119 

A 2.06 127

0 1.26 916

.6 9 . 55 587 

2.3 .6.67 371 

1.5 2.37 146 

2.3 6.61 393 

1.7 439 27,000 

132 348 «0,740 

.2 6.11 375 

.2 .38 24 

.3 .47 28

.1 69.0 49,940

a Ho gage-height record; discharge Interpolated.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
364 FEATHER RIVER BASIN

Bowman-Spaulding Canal at Intake, Calif.

Location. Water-stage recorder, lat. 39°27', long. 120°39', in sec. 8, .T. 18 N., R. 12 

E77T50 feet downstream from intake and 0.2 mile downstream from Bowman Dam. Altitude 

of gage, about 5,400 feet (from topographic map).

Records available .. October 1927 to September 1950. 

Average discharge.--23 years, 144 second-feet.

Extremes.--Maximum daily discharge during year, 236 second-feet Oct. 1, 6, 11, 12, 28, Nov. 

23; no flow at times November to February, April, June.

1927-50: Maximum daily discharge, 262 second-feet Aug. 2-9, 29, Sept. 10-13, 1928; 

no flow at times during each year except 1943-45, 1948.

Remarks. Records good except those below 40 second-feet and those for period of no gageheight record, which are fair. Canal diverts from left bank of Canyon Creek below 

Bowman Lake. Water is delivered to Lake Spaulding and, after passing through several 

powerhouses, is used for irrigation by Nevada Irrigation District.

Cooperation. Water-stage recorder graph and three discharge measurements furnished by 

Nevada Irrigation District.

Discharge, in second-feet, water year October 1949 to September 195O

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.

2i6 

235 

234 

233 

234

236 

235 

234 

234 

235

236 

236 

234 

234 

233

232 

231 

230 

23O 

234

234 

234 

232 

233. 

233

234 

235 

236 

235 

235 

235

Nov.

229 

227 

a225 

a223 

a220

a218 

8216 

3214 

3212 

82O9

8207 

205 

203 

2O5 

204

212 

214 

214 

234 

232

224 

230 

236 

225 

216

203 

123 

8.3 

7.6 

O

Dec.

O 

15 

24 

23 

26

15 

.4 

3.8 

.2 

.3

.5 

.6 

.3 

8.5 

19

48 

74 

101 

131 

131

b!20 

bllO 

bllO 

bllO 

bllO

bllS 

117 

117 

117 

117 

117

Jan.

117 

117 

117 

117 

117

116 

116 

117 

117 

117

117 

117 

117 

54 

O

0 

O 

0 

O 

O

O 

0 

O 

O 

O

O 

O 

0 

O 

O 

0

Feb.

0 

O

o

0 

0

o 

o 

o

0

o

o 

o 

o 

o 

o

o 

o 

o

0 

28

80 

135 

1S9 

2O6 

206

206 

2O6 

2O5

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebn 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

h. ......................................

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

ter year 1949-5O .......................

Mar.

204 

204 

204 

214 

214

205 

204 

204 

*>4 

209

213 

218 

222 

221 

220

220 

220

214 

147 

127

165 

174 

173 

171 

171

179 

185 

200 

2O8 

191 

142

Apr.

0 

O 

2.2 

5.2 

5.0

6.2 

14 

28 

27 

16

1.4 

1.8 

52

103 

136

139 

111 

76 

36 

1.7

0 

O 

O 

4.1 

11

11 

11 

12 

13 

14

Secondfoot-days

7,252 

5,795.9 

1,881.6

39,807.8

1,573 

1,461 

6,047 

837.6 

1,051.9 

1,715.1 

7,172 

6,814 

6,401

48,002.1

May

15 

15 

15 

18 

23

22 

21 

25 

17 

17

31 

74 

79 

34

12

7.9 

22 

31 

31 

31

31 

30 

30 

36 

41

41 

41 

41 

68 

70 

82

Maximum

236 

236 

131

237

117 

2O6 

222 

139 

82 

198 

235 

232 

230

236

June

82 

86 

100 

119 

138

146 

154 

171 

186 

198

195 

94 

.1 

O 

O

O 

0

o 

o 

o

0 

0

o

0 

0

0

o 

o 

o

46

July

213 

230 

234 

230 

230

230 

231 

231 

234 

234

234 

233 

233 

232 

232

232 

232 

235 

' 235 

234

234 

234 

233 

231 

226

226 

229 

234 

233 

232 

231

Minimum

230 

O 

O

O

O 

O 

127 

O 

7.9 

0 

213 

135 

125

0

Aug.

23O 

226 

221 

226 

225

226 

225 

223 

222 

222

224 

199 

184 

225 

227

229 

231 

229 

224 

223

223 

224 

228 

228 

228

230 

230 

229 

135 

232 

186

Mean

234 

193 

60.7

109

50.7 

52.2 

195 

27.9 

33.9 

57.2 

231 

22O 

213

132

Sept.

125 

210 

210 

210 

210

213 

215 

215 

216 

217

144 

224 

225 

224 

226

227 

227 

228 

229 

226

226 

228 

23O 

23O 

230

2 3O 

229 

228 

126 

223

Runoff in 

acre-feet

14,380 

11,50O 

3,730

78,950

3,12O 

2.9OO 

11,990 

1,660 

2,O9O 

3,400 

14,230 

13,520 

12,700

95,220

a No gage-height record; discharge interpolated, 

b Stage-discharge relation sffected by Ice.
FEATHER RIVER BASIN 365

Deer Creek near Smartville, Calif.

Location. Water-stage recorder, lat. 39°13'20", long. 121 "16'00", in sec. 23, T. 16 N., 

RTETE., 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 1950.

Average discharge. 15 years, 143 second-feet.

Extremes. Maximum discharge during year, 5,110 second-feet Feb. 4 (gage height, 9.63 

feet); minimum, 1.5 second-feet Nov. 6.

1935-50: Maximum discharge, 11,300 second-feet Mar. 9, 1943 (gage height, 13.62 

feet), from rating curve extended above 5,200 second-feet by logarithmic plotting; 

minimum, 0.1 second-foot Aug. 4-6, 15, 1940.

Remarks. Records good. Flow partly regulated by Deer Creek Reservoir (capacity, 1,400 

acre-feet). Diversions above station for power and irrigation. At times water from 

South Fork Yuba River is diverted into Deer Creek above station.

Discharge, in second-feet, water year October 1343 to Septenber 1350

Day

1

2

3

4

5

6

7

n

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

1.6

1.8

1.8

1.6

1.6

1.8

2.2

2.2

2.2

1.8

1.8

1.8

1.8

1.8

2.1

2.2

2.1

2.4

2.4

2.3

2.7

2.7

2.6

2.6

2.3

2.1

2.0

2.0

2.2

2.6

Nov.

2.6

2.4

2.3

2.1

1.8

1.6

1.7

2.7

31

73

36

23

17

16

14

16

11

11

10

10

10

3.7

3.7

9.4

3.1

3.1

9.1

9.4

10

8.8

-

Dec.

3.1

3.1

3.4

3.7

12

13

11

11

11

10

10

10

10

12

21

13

58

88

65

36

. 28

21

16

14

3.7

3.4

8.8

8.5

8.5

8.5

8.5

Jan.

8.5

3.1

8.5

9.1

11

14

12

25

24

74

77

51

40

77

42

1,010

5,430

379

239

136

332

412

486

206

184

142

140

586

150

92

73

Fab.

56

48

58

3,470

1,240

1,440

344

222

173

250

170

130

102

31

81

85

77

66

61

56

56

47

44

41

40

33

38

38

_

_

-

Month

Deoeober ....................................

Calendar year 1343 ......................

Maroh. .....................................

April, .....................................

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

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

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

Water year 1343-50 ......................

Mar.

35

32

30

30

36

35

23

27

26

25

30

24

22

30

144

147

214

173

830

460

335

447

404

2,000

735

526

447

413

352

133

85

Apr.

80

210

265

263

265

325

450

773

502

413

373

334

267

248

238

236

244

228

181

143

203

124

36

28

28

126

65

30

19

13

-

Seoondfoot-days

64.9

373.5

575.2

22,897.3

9,079.2

8,571

8,448

6,710

1,775.1

131.7

86.3

94.6

36 ,O12. 8

May

65

177

186

111

88

68

43

37

33

26

34

123

102

72

63

85

37

56

66

40

36

8.4

14

41

49

15

8.1

5.6

5.0

4.6

4.4

Haxinui

2.7

73

88

2,770

3,430

186

5.8

3.5

3.2

5.4

3,470

June

4.0

4.4

3.7

4.6

4.0

4.4

5.6

5.6

4.8

4.8

5.6

5.4

5.2

5.2

5.0

4.8

4.6

5.8

5.6

4.2

4.2

3.9

3.5

3.2

3.0

3.0

3.1

3.7

3.4

3.4

Minimum

1.6

1.6

' 8.5

1.2

8.5

38

22

4.4

2.7

2.2

1.7

1.6

July

3.4

3.2

3.1

3.2

3.0

2.8

3.0

3.2

3.1

3.1

3.1

3.1

3.1

3.1

3.2

3.2

3.1

2.7

3.1

3.2

3.1

3.2

3.4

3.1

3.4

3.5

3.0

3.2

3.1

3.0

2.7

Aug.

2.6

2.7

2.6

2.6

2.8

3.0

3.0

2.8

3.0

3.0

2.7

2.8

2.8

2.8

2.3

2.2

2.5

2.6

2.7

2.7

2.8

3.0

3.0

3.0

2.8

3.0

2.8

3.0

3.0

3.2

3.1

Mean

2.09

12.6

18.6

65.5

293

308

57.3

3.12

3.15

98.7

Sept.

2.7

2.7

2.3

2.1

1.7

1.7

2.0

2:3

2.7

2.7

2.7

2.8

3.1 i.o

3.0

3.4

3.9

4.2

5.4

5.0

4.0

3.9

3.4

2.8

2.6

3.7

4.0

3.6

a3.6

a3.6

-

Runoff in 

ao re-feet

129

753

1,140

47,400

18,010

17,000

13,310

3,520

261

192

172

188

71,440

Peak discharge (base, 3,500 see.-ft.J.. Jan. 17 (6:30 a.m.) 4,830 sec. -ft. J Fab. 4 (6 p.m.) 5,110

 ec.-ft.

a No gage-height record; discharge computed on basis of records for stations on nearby streams.
366 FEATHER RIVER BASIN 

Dry Creek .near Brownsville, Calif.

Location. Water-stage recorder, lat. 39°28'40", long. 121°15'15", in NW£ sec. 25, T. 19

 N., R. 6 E., 0.2 mile downstream from New York Creek and 0.9 mile northeast of 

"Brownsville. Altitude of gage, about 2,220 feet (from topographic map).

Drainage area. 20.5 square miles.

Records available. October 1948 to September 1950.

Extremes. Maximum discharge during year, 822 second-feet Feb. 4 (gage height, 5.39 feet),

 from rating curve extended above 350 second-feet on basis of slope-area determination 

at gage height-5.39 feet for peak of Nov. 20, 1950; minimum, 0.3 second-foot Aug. 24. 

1948-50: Maximum discharge, that of Feb. 4, 1950; minimum, that of Aug. 24, 1950.

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

No large diversion above station.

Rating tables, water year 1949-50 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Sept. 19-30)

Oct. 1 to Feb. 4 Feb. 5 to Sept. 30

1.0

1.1

1.2

1.3

1.4

1.0

2.2

4.0

6.8

11

1.6 

1.8 

2.1 

2.4 

2.8

23

37

65

100

156

3.2 

3.7 

4.4 

4.7

225

325

500

590

1.0

1.1

1.2

1.3

1.3

2.7

4.9

8.0

12

1.5 

1.7 

1.9 

2.1 '2.4

22

33

46

67

100

Note. Same as preceding table above 2.4 feet.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.9 

1.9 

1.9 

2.2 

2.0

2.2 

2.5 

2.6 

2.8 

3.0

3.0 

2.8 

2.8 

2.8 

3.2

3.0 

2.5 

2.8 

3.2 

3.4

3.4 

4.0 

2.5 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.4 

2.4

Hov.

2.4 

2.5 

2.6 

2.5 

3.0

2.6 

2.4 

2.6 

16 

12

8.7 

9.5 

9.9 

9.5 

5.5

4.4 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

2.8 

2.8 

3.0

2.8 

2.6 

2.6 

2.5 

2.5

Dec.

2.5 

2.6 

2.6 

2.5 

4.2

3.6 

2.8 

2.8 

2.6 

2.6

2.4 

2.5 

2.5 

2.8 

5.8

8.7 

36 

27 

16 

7.6

5.5 

4.4 

4.4 

4.0 

3.6

3.4 

3.2 

3.4 

3.4 

3.4 

3.6

Jan.

3.0 

3.2 

3.2 

3.4 

11

31 

3.8 

8.7 

5.5 

25

36 

37 

29 

35 

29

50 

473 

299 

88 

61

178 

139 

187 

74 

33

25 

21 

76 

44 

27 

21

Feb.

18 

16 

29 

590 

377

313 

113 

74 

54 

94

86 

72 

60 

52 

47

49 

47 

43 

39 

36

34 

.32 

30 

29 

28

27 

26 

26

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

nber. .............--....-..--.-- -------

lendar year 1949

ter year 1949-50 .......................

Peak discharge (base. 270 sec.-ft Ti). Jan.

sec. -fti J Feb. 4 (6 p.m.) 822 sec. -ft. I Mar. 

sec. -ft.

Mar.

25 

25 

24 

24 

29

23 

22 

22 

22 

22

28 

22 

19 

19 

18

17 

53 

31 

200 

64

45 

89 

63 

259 

140

94 

77 

67 

63 

52 

46

Apr.

47 

44 

36 

34 

36

93 

123 

164

99 

72

60 

60 

70 

54 

48

46 

45 

42 

40 

39

39- 

40 

35 

36 

35

34 

34 

24 

22 

22

Secondfoot-days

80.4 

135.7 

 182.4

7,611.4

2,059.8 

2,441 

1,704 

1,573 

770 

286.0 

123.4 

69.9 

58.9

9,486.5

17 (10:30 p 

19 (10:30 a

May

41 

66 

71 

47 

35

31

25 

24

22 

22 

21 

21 

20

20 

19 

19 

20 

22

21 

17 

16 

16 

16

15 

15 

14 

14 

13 

12

Maximum

4.0 

16 

36

306

473 

590 

259 

164 

71 

12_ 

5.8 

2.7 

3.1

590

June

12 

12 

12 

12 

11

10

H 11 11

1112 

12 

12 

11

10 

9.6 

9.6 

8.8 

8.4

8.0 

8.0 

7.7 

7.7 

7.4

7.1 

7.1 

6.4 

6.4 

5.8

July

5.5 

5.8 

5.5 

5.5 

5.2

4.9

l:i

4.2 

4.2

4.2 

4.2 

4.0 

4.0 

4.2

4.2 

4.0 

4.0 

3.8 

3.3

3.3 

3.3 

3.3 

3.3 

3.1

3.1 

2.9 

2.9 

2.9 

2.9 

2.7

Aug.

2.7 

2.7 

2.7 

2.7 

2.7

2.7

2.4 

2.6

2.6 

2.4 

2.4 

2.4 

2.1

2.7 

2.1 

1.9 

1.8 

1.8

1.8 

1.9 

2.1 

1.8 

2.2

2.1 

1.9 

1.9 

1.8 

1.8 

1.8

Minimum Mean

1.9 2.59 

2.4 4.52 

2.4 5.88

1.1 20.9

3.0 66.4 

16 87.2 

17 55.0 

22 52.4 

12 24.8 

5.8 9.60 

2.7 3.98 

1.8 2.25 

1.6 1.96

1.6 26

Sept.

1.6 

1.6 

1.6 

1.6 

1.6

1.6

i:f

2.2 

2.1

2.1 

1.9 

1.9 

1.9 

1.9

1.9 

2.7 

3.1 

2.6 

2.2

1.9 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.9 

2.1 

2.1

Runoff In 

acre -feet

159 

269 

362

15,100

4,090 

4,840 

3,380 

3,120 

1,530 

571 

245 

139 

117

18,820

.m. ) 635 sec. -ft.; Jan. 21 (9 p.m.) 358 

.m. ) 536 seo.-rts.j Mar. 24 (l p.m.) 372

Hote. Ho gage-height record Feb. 11 to Mar. 3, June 5-16j discharge computed on basis of records 

for station at Virginia Ranch.
FEATHER RIVER BASIN 367

Dry Creek at Virginia Ranch, Calif.

Location. Water-stage recorder, lat. 39°19'20", long. 121° 18'45", in Nw£ sec. 21, T. 17

 tl., R. 6 E., 0.4 mile south of Virginia Ranch, 2.9 miles southwest of town of Oregon 

House, and 3.0 miles downstream from Willow Glen Creek. Altitude of gage, about 

1,060 feet (from topographic map).

Drainage area. 71.5 square miles.

Records available.--October 1948 to September 1950.

Extremes. Maximum discharge during year, 7,090 second-feet Feb. 4 (gage height, 9.02

 feet), from rating curve extended above 1,700 second-feet on basis of logarithmic 

plotting; minimum, 0.4 second-foot Nov. 6.

1948-50: Maximum discharge, that of Feb. 4, 1950; minimum, that of Nov. 6, 1949.

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

 HMTum and low flows partly regulated by Lake Mildred (capacity, 1,500 acre-feet). 

Several diversions above station for irrigation.

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Apr. 10 to Sept. 30)

0.8 0.1 1.5 14 2.9 165 5.5 1,360 

.9 .7 1.7 23 3.2 232 6.0 1,780 

1.0 1.5 1.9 33 3.6 359 6.5 2,340 

1.1 2.6 2.1 47 4.0 515 7.0 3,040 

1.2 4.4 2.3 68 4.5 740 7.4 3,700 

1.3 7.0 2.6 111 5.0 1,020

Discharge, in second- feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.9 

.8 

.8 

.8 

.8

.8 

.6 

.6 

.5 

.5

.6 

.7 

.6 

.6 

.9

1.1 

1.0 

1.0 

.9 

.9

.9 

.9 

.9 

.9

.e

.7 

.6 

.8 

1.0 

.9 

.6

Nov.

0.6 

.5 

.5 

.5 

.5

.5 

.5 

.6 

1.1 

1.5

1.4 

1.3 

3.5 

4.9 

5.2

5.2 

4.9 

4.9 

4.7 

4.7

4.7 

4.7 

4.7 

4.9 

4.9

4.9 

4.9 

4.9 

4.9 

4.9

Dec.

4.7 

4.7 

4.4 

4.4 

4.7

4.7 

4.9 

4.9 

4.9 

5.0

5.0 

5.0 

5.0 

6.0 

11

35 

180 

140 

90 

20

13 

10 

9.0 

8.0 

7.0

6.5 

6.0 

6.0 

6.0 

6.0 

6.0

Jan.

6.0 

6.0 

7.0 

12 

50

155 

15 

30 

20 

80

140 

180 

100 

130 

24

605 

2,340 

1,900 

514 

183

413 

443 

396 

200 

106

71 

84 

555 

205 

210 

92

Feb.

66 

56 

70 

3,640 

2,180

1,740 

473 

257 

189 

329

257 

171 

141 

123 

111

120 

113 

94 

84 

76

68 

64 

59 

55 

53

52 

51 

48

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949 

tucy

. . . . . ...

uairy . .» » . ..

ter year 1949-50 .......................

Mar.

47 

46 

43 

42 

54

49 

41 

39 

40 

39

47 

45 

37 

34 

32

32 

126 

80 

973 

293

157 

340 

237 

1,700 

798

392 

272 

203 

179 

150 

128

Apr.

120 

110 

98 

74 

30

68 

267 

663 

543 

192

156 

141 

189 

133 

114

63 

15 

13 

11 

10

9.1 

8.2 

7.0 

6.7 

6.5

16 

46 

40 

34 

32

Secondfoot-days

24.2 

95.9 

627.8

21,398.9

9,182.0 

10,740 

6,695 

3,215.5 

1,252 

223.4 

115.5 

50.4 

31.5

32,253.2

May

64 

134 

163 

106 

71

60 

53 

47 

42 

38

36 

34 

32 

30 

27

26 

25 

24 

24 

24

26 

22 

19 

18 

18

18 

17 

16 

14 

13 

11

MaxlBUB

1.1 

5.2 

180

2,020

' 2,340 

3,640 

1,700 

663 

163 

11 

5.2 

2.4 

1.3

3,640

June

11 

10 

9.7 

8.5 

8.2

8.2 

8.8 

9.4 

9.4 

9.1

9.4 10 ' 

10 

9.4 

9.1

9.1 

9.1 

8.5 

8.2 

7.6

7.0 

6.2 

4.2 

3.9 

3.9

3.5 

3.5 

3.3 

2.8 

2.4

July

2.4 

2.5 

5.2 

5.2 

5.2

4.9 

4.9 

4.9 

4.9 

4.9

4.2 

4.0 

3.9 

3.9 

3.9

3.7 

3.5 

3.5 

3.5 

3.5

3.5 

3.7 

3.7 

3.7 

3.1

2.8 

2.8 

2.6 

2.5 

2.3 

2.2

Aug.

2.3 

2.4 

2.4 

2.4 

2.4

2.3 

2.2 

' 2.0 

2.0 

1.9

1.8 

1.6 

1.5 

1.5 

1.4

1.4 

1.4 

1.4 

1.3 

1.3

1.5 

1.6 

1.6 

1.4 

1.4

1.3 

1.0 

.9 

.9 

.9 

1.0

Sept.

1.2 

1.2 

1.2 

1.1 

1.1

1.2 

1.3 

1.3 

1.3 

1.2

1.1 

1.0 

1.0 

1.1 

1.0

1.3 

1.3 

1.3 

1.3 

1.1

.9 

.9 

.9 

.8 

.8

.8 

.8 

.7 

.7 

.6

««. *an £Se«e£

0.5 0.78 48 

.5 3.20 190 

4.4 20.3 1,250

.5 58.6 42,450

6.0 296 18,210 

48 384 21,300 

32 216 13,280 

6.5 .107 6,380 

11 40.4 2,480 

2.4 7.45 443 

2.2 S.-73 229 

.9 1.63 100 

.6 1.05 62

.5 88.4 63,970

rge (base. 1.900 sec.-ft.). Jan. 17 (5 a.m.) 3,300 sec.-ft. j Feb. 4 (7 p.m.) 7,090 

.1-9 (12 m.) ZjllO sec. -ft. ; Mar. 24 tl(l p.m.) 2,47O see..-ft.

Peek diachargi 

sec.-ft.s Bar

hote. No gage-height record Dec. 10 to Jan. 14; discharge computed on basis of records for station 

near Brownsville.
368 FEATHER RIVER BASIN

Bear River near Coifax L Calif.

Location. Water-stage recorder, lat. 39°07'45", long. 120°57'35n , in NWi sec. 27, T. 15 

H. , K. 9 E., 0.2 mile downstream from Colfax-Grass Valley highway bridge, 1.4 miles 

downstream from Greenhorn Creek, and 2 miles north of Colfax. Altitude of gage, about 

1,900 feet (from topographic map).

Records available.--November 1949 to September 1950. November 1911 to June 1917.

Extremes. Maximum discharge during period November 1949 to September 1950, 4,830 secondTeeT~Peb. 6 (gage height, 16.78 feet), from rating curve extended above 3,600 secondfeet on basis of slope-area measurement at gage height 21.40 feet for peak of Nov. 20, 

1950; minimum not determined, but less than 0.2 second-foot.

1911-17, 1949-50: Maximum discharge, 5,200 second-feet Feb. 24, 1917 (gage height, 

14.2 feet, site and datum then in use); no flow at times 1912-13.

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

BeSF River receives considerable water above station from South Yuba River and North 

Fork American River by way of Drum and Alta power plants. Storage and diversions above 

station for irrigation and power. (See records for Bear River Canal, p. 371, which 

diverts 0.5 mile above station.)

Rating tables, Nov. 1, 1949, to Sept. 30, 1950 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used May 15 to June 26)

Nov. 1 to Feb. 6 Feb. 7 to Sept. 30

5.2 O.8 6.4 94 10.0 965 4.2 1.5 5.6 48 8.5 554 

5.3 1.7 6.8 147 11. 0 1,350 4.3 3.1 5.9 70 9.O 700 

5.4 3.4 7.2 205 12. 0 1.78O 4.4 4.9 6.2 100 10.0 1,020 

5.5 7.0 7.6 274 13.0 2,300 4.6 8.8 6.6 154 11. 0 1.38O 

5.6 13 8.0 358 14.3 3,040 4.8 13 7.0 218 12. 0 1.79O 

5.8 28 8.5 484 5.0 19 7.5 312 

6.0 47 9.0 630 5.3 31 8.O 424

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

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.

4.2 

1.0 

3.1 

1.0

4.1

.9 

3.6 

1.2 

134 

30

4.8 

4.2 

1.0 

5.0 

1.1

4.2 

1.1 

4.5 

1.1 

3.4

1.1 

4.0 

1.1 

2.1 

1.0

1.4 

.9 

2.4 

1.1 

2.9

Dec.

1.0 

4.2 

.9 

4.4 

56

136 

117 

120 

1O9 

31

66 

126 

109 

79 

72

12 

1.7 

18 

9.2 

1.2

38 

67 

9.0 

1.2 

1.7

1.0 

1.6 

1.2 

3.8 

1.2 

3.8

Jan.

1.1 

2.7 

1.2 

3.2

1.3

4.6 

1.3 

5.9 

1.3 

28

15 

5.3 

49 

43 

39

196 

2,06O 

1,650 

418 

347

484 

681 

2,110 

853 

356

177 

157 

489 

20O 

163 

150

Feb.

116 

1O6 

137 

2,770 

2,250

3,O10 

1,270 

831 

740 

728

849 

436 

468 

430 

4 O2

431 

442 

404 

388 

346

370 

326 

331 

327 

320

250 

292 

317

Month

Goto 

Nove

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Nay

June 

July 

Augu 

Sept

Th

mber. ...................................

lendar year 

ai*y

uftry . .

e period. ...............................

Mar.

325 

334 

309 

304 

335

312 

303 

321 

299 

242

212 

213 

282 

267 

242

250 

386 

530 

1,370 

1,100

1,110 

955 

1,010 

1,760 

1,340

1,020 

1,020 

976 1,000' 

1.05O 

1,050

Apr.

1,

1,

1, 

1, 

1, 

1,

Secondfoot -days

231.5 

1,203.1

-

10,692.9 

19,087 

20,227 

20,431 

8,456 

3,759.8 

362.1 

2,050 

2,319

-

Peak discharge (base, l,5oo sec. -ft.). Jan. 18 (l:3O

020 

921 

977 

931 

09O

040 

210 

310 

O3O 

964

776 

708 

873 

686 

567

415 

497 

520 

491 

477

504 

461 

350 

336 

392

405 

378 

382 

386 

334

May

456 

4"82 

447 

396 

391

376 

395 

350 

327 

31S

305 

298 

293 

292 

347

278 

267 

205 

224

155

72 

144 

136 

243 

182

222 

223 

150 

145 

147 

190

Maximum

134

136

-

2,110 

3,010 

1,760 

1,310 

482 

202 

54 

110 

181

-

June

143 

157 

150 

188 

116

191 

139 

148 

153 

202

136 

141 

178 

137 

188

126 

115 

143 

125 

176

88

151 

105 

108 

113

98 

23 

12 

4.9 

4.9

July

10 

1.7 

11 

3.3 

3.5

8.6 

6.5 

5.5 

1.7 

5.0

3.0 

3.3 

6.1 

3.5 

5.1

2.3 

4.6 

1.8 

1.7 

4.3

1.8 

4.3 

1.8 

6.4 

2.3

37 

39 

38 

45 

40 

54

Aug.

52 

--.52 

52 

43 

56

50 

49 

52 

43 

54

65 

66 

62 

71 

67

65 

67 

67 

33 

54

88 

103 

94 

J10 

71

76 

72 

79 

79 

79 

79

Sept.

75 

30 

20 

24 

36

76 

47 

2O 

31 

30

53 

85 

92 

140 

165

181 

174 

176 

176 

106

76 

70 

15 

12 

102

66 

68 

72 

74 

27

I***. «ean l «£

0.9 7.72 459 

.9 38.8 2,390

-

1.1 345 21,210 

106 682 37,860 

212 652 40,120 

334 681 40,520 

72 273 16,770 

4.9 125 7,460 

1.7 11.7 718 

33 66.1 4,070 

12 77.3 4,600

176,200

a.m.) 2,660 sec. -ft.; Jan. 23 (11:30 a.m.)

3,630 sec.-ft.; Feb. 6 (6:30 a.m. ) 4,830 sec.-ft.; Mar. 19 (2 p.m.) 2,34O sec.-ft.; Mar. 24 (3:30 

p.m.) 2,410 sec.-ft.; Apr. 7 (7 p.m.) 1,6OO sec.-ft.

Note. No gage-height record Aug. 21 to Sept. 30; discharge furnished by Pacific Qas & Electric Co.
FEATHER RIVER BASIN 369

Bear River near Auburn, Calif.

Location. Water-stage recorder, lat. 39°01', long. 121°05', near south line of sec. 33, 

T. 14 N., R. 8 E., 300 feet upstream from bridge on State Highway 49 , 3.5 miles upstream from Wolf Creek, and 8 miles north of Aubum. Altitude of gage, about 1,300 

feet (from topographic map).

Drainage area. 140 square miles.

HebordS available. December 1940 to September 1950 in reports of Geological Survey. 1922, 

isub-fiB, i»29-i>3, 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, 5,930 second-feet Feb. 4 (gage height, 10.68 

reet); minimum, 0.7 second-foot Nov. 9.

1940-50: Maximum discharge, 20,600 second-feet Jan. 21, 1943 (gage height, 16.45 

feet, present datum), from rating curve extended above 5,000 second-feet by logarithmic plotting and on basis of computed flow over Combie Dam, 3 miles above station; 

minimum, 0.5 second-foot July 14, 1946.

Remarks. Records good. River receives inflow from Yuba River Basin above station. Flow 

regulated by Combie Reservoir (capacity, 9,000 acre-feet) and other reservoirs. Many 

diversions above station for power and irrigation.

Revisions. W 981: Drainage area.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used May 2S to Sept. 30)

3.4 0.6 3.9 18 4.4 72 5.4 268 7.5 1,310 

3.5 1.4 4.0 26 4.5 88 5.8 395 8.0 1,760 

3.6 3.3 4.1 35 4.6 104 6.2 560 8.5 2,350 

3.7 6.5 4.2 46 4.8 140 6.6 755 9.O 3,050 

3.8 11 4.3 58 5.0 178 7.0 980 9.6 3,980

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 27 

28 

29 

30 

31

Oct.

4.7 

4.7 

4.7 

5.0 

5.4

5.0 

4.4 

4.1 

4.1 

4.1

8.2 

6.5 

5.4 

4.7 

4.1

3.1 

4.4 

3.3 

3.8 

2.4

2.2 

2.2 

2.2 

2.2 

2.2

2.2

2.9 

2.9 

2.9 

2.9 

2.9

Nov.

2.9 

2.9 

2.6 

2.6 

2.2

2.4 

2.0 

1.1 

2.9 

6.1

4.7 

7.3 

7.7 

7.3 

3.8

3.6 

3.3 

3.3 

3.6 

3.3

3.6 

2.6 

4.7 

5.9 

5.0

6.9 

9.2 

7.3 

5.7 

4.7

Dec.

3.8 

3.1 

2.9 

5.7 

6.5

2.6 

4.1 

4.4 

4.7 

4.7

5.0 

5.0 

14 

14 

15

47 

286 

378 

346 

206

109 

55 

17 

19 

18

15 

17 

18 

17 

16 

13

Jan.

6.5 

9.2 

9.7 

9.7 

13

18 

17 

16 

18 

49

83 

77 

65 

58 

41

135 

513 

2,830 

893 

471

510 

1,420 

2,160 

1,410 

602

419 

407 

423 

419 

403 

395

Feb.

3S8 

378 

370 

1,760 

3,480

3,960 

1,660 

998 

810 

740

826 

546 

435 

419 

395

388 

388 

367 

353 

395

423 

419 

411 

407 

407

392 

392 

388

Month

Ooto 

Neve 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber

 ber. ................................ ..

lendar year 1949 ......................

ary

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

St. ....................................

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

ter year 1949-50 ......................

Peak discharge (baae. 1,800 *«e.-ft.). Jar

jMO.-rt.J Feb. 4 (10:3O pj».) 6, §30 aeo.-ft.j

Mar.

384 

374 

360 

356 

350

346 

342 

339 

332 

325

316 

29S 

284 

276 

266

249 

251 

276 

356 

403

503 

1,030 

992 

2,100 

1,760

1,160 

1,040 

1,020 

1,020 

950 

9S6

Apr.

1,020 

882 

898 

909 

S92

1,030 

1,140 

1,350 

1,100 

980

810 

675 

782 

730 

592

471 

435 

439 

455 

400

288 

152 

520 

495 

419

342 

384 

360 

319 

282

Seccndfoot-days

119.8 

130.3 

1,672.5

56,715.2

13,900.1 

22,295 

19,044 

19,551 

4,733.2 

1,708.1 

102.8 

1S5.1 

146.4

83,688.3

i. 18 (5 a.m 

Mar. 24 (7

May

284 

185 

129 

246 

511

41S 

261 

107 

1.9 

8.7

70 

155 

191 

191 

149

184 

188 

144 

156 

99

78 

5.6 

67 

149 

122

102 

164 

90 

83 

86 

108

June

65 

72 

75 

101 

49

86 

60 

69 

68 

108

68 

66 

83 

65 

98

61 

45 

58 

56 

83

SO 

50 

36 

26 

39

36 

27 

3.6

2.6 

1.9

Maxima Minimum

8.2 2.2 

9.2 1.1 

378 2.6

1,590 1.1

2,330 6.5 

3,960 353 

2,100 249 

1,350 152 

511 1.9 

108 1.9 

4.4 1.7 

8.2 3.8 

9.2 3.6

3,960 lil

July

1.7 

1.7 

1.7 

1.9 

1.7

2.2 

2.2 

2.2 

2.6 

2.9

2.9 

3.1 

3,3 

3.3 

3.3

3.3

3.6 

3.8 

4.1 

4.1

4.1 

3.8 

4.1 

4.4 

4.4

4.4 

4.4 

4.4 4.4

4.4 

4.4

Aug.

4.4 

4.7 

5.0 

5.0 

5.4

5.8 

4.4 

4.7 

4.7 

4.7

4.7 

5.0 

5.4 

5.4 

5.7

6.5

6.1 

6.1 

6.1 

6.1

6.5 

6.9 

6.9 

6.9 

7.3

7.7 

7.7 

7.7 

7.7 

7.7 

8.2

Mean

3.86 

4.34

54.0

155

448 

796 

614 

652 

153 

56.9 

3.52 

5.97 

4.88

229

Sept.

7.7 

7.7 

7.3 

7.3 

9.2

5.7 

4.7 

3.8 

4.1 

4.1

4.1 

5.4 

5.7 

9.5 

3.8

5.8 

4.1 

4.7 

4.7 

4.4

5.6 

3.6 

5.B 

5.8 

3.8

5.8 

3.8 

3.6 

3.8

4.4

Runoff in 

ao re-feet

238 

258 

3,320

112,500

27,570 

44,220 

37,770 

38,780 

9,390 

3,390 

204 

367 

290

165,800

.) 4,180 Bee. -ft. j Jan. 23 (4 p.m.) 3,670 

p.m.) 3,050 sec. -ft.
370 FEATHER RIVER BASIN 

Bear River near Wheatland, Calif.

Location. Water-stage recorder, lat. 39°00', long. 121-25', in sec. 3, T. 13 N., R. 5 E.,

 ofraownstream 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 1950.

Average discharge. 21 years (1929-50), 408 second-feet.

Extremes. Maximum discharge during year, 11,200 second-feet Feb. 5 (gage height, 14.49 

reet;); minimum, 2.8 second-feet Oct. 7.

1928-50: 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 

5,780 second-feet through levee break 0.5 mile upstream, determined by contracted-opening method and other data; no flow May 8, Sept. 18-25, 1939, and Sept. 5,6, 1949.

Remarks. Records good except those for periods of doubtful or no gage-height record,

 which are fair. Flow regulated by reservoirs and power plants above station. River 

receives inflow from Yuba River Basin and there are diversions above station for irrigation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. '

31

21

15

14

S.3

8.3

5.0

5.8

5.8

5.8

6.1

7.6

9.3

S.6

8.0

7.3

6.1

7.3

9.0

12

12

13

11

13

13

9.3

12

12

13

12

10

Nov.

10

15

15

15

13

11

11

12

32

217

130

7S

58

48

43

39

32

32

36

36

35

34

34

34

32

29

34

37

34

32

-

Dec.

32

31

29

30

33

52

36

33

32

31

34

34

34

49

72

80

237

450

425

334

188

164

80

70

67

66

62

76

70

67

62

Jan.

49

45

50

45

45

48

54

78

100

103

244

230

183

226

178

318

4,450

4,960

1,620

S38

77S

1,7SO

2,130

2,220

994

640

603

1,390

794

615

554

Feb.

520

500

496

5,450

6,210

6,780

2,670

1,630

1,210

1,220

1,240

946

66S

635

590

572

572

554

516

520

554

540

532

520

520

508

504

504

_

-

Month

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

NoveBber. ..................................

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

Calendar year 1949 ......................

January . . .

February. . .

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

Sy

Jane .......................................

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

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

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

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

Mar.

500

496

480

472

468

460

453

442

442

436

439

422

400

390

380

369

397

432

1,160

1,040

850

1,410

1,380

4,340

3,640

2,110

1,580

1,400

1,290

1,170

1,140

Apr.

1,170

1,010

958

982

958

1,110

1,250

1,870

1,500

1,090

922

780

833

844

690

564

496

288

119

35

50

102

256

510

474

395

383

387

358

316

-

Secondfoot-days

331.6

1,21S

3,060

93,879.8

26,362

37,681

30,388

20,700

6,177

1,415

451

359

499.2

128,641.8

Peak discharge (base, 3,100 sec. -ft.). Jan. 18

May

327

369

351

248

465

510

340

294

127

82

78

141

218

222

- 211

200

222

209

174

178

126

97

50

82

176

140

120

150

100

90

80

Maximum

31

217

450

6,750

4,960

6,780

4,340

1,870

510

90

22

13

66

6,760

June

90

60

60

65

80

50

60

60

55

50

70

50

50

55

50

60

50,

45

45

40

35

30

25

25

25

25

25

30

30

20

-

Minimum

5.0

10

29

0

45

496

369

35

50

20

13

10

9.7

5.0

July

IS

16

14

14

. 13

13

14

14

14

14

14

15

IS

22

18

15

15

13

14

14

14

al4

al4

al4

al4

a!4

al3

al3

a!3

al3

al3

Aug.

al3

13

12

11

12

12

12

13

11

11

13

12

11

11

12

10

alo

alo

alo

alo

all

all

11

11

11

12

13

12

13

12

12

Mean

10.7

40.6

98.7

257

850

1,346

980

690

199

47.2

14.5

11.6

16.6

352

Sept.

13

13

13

13

12

14

13

13

13

12

11

10

10

10

9.7

9.7

10

10

9.7

10

9.7

9.7

9.7

10

IS

21

50

66

54

27

Runoff in 

acre-feet

658

2,420

6,070

186,200

52,290

74,740

60,270

41,060

12,250

2,810

895

712

990

255,200

7 a.m.) 7.450 sec. -ft. ; Jan. 23 (9 p.m.) 4,020

6,690 sec.-ft.

a No gage-height record! discharge Interpolated.

Note. Doubtful gage-height record May 26 to July 10;. discharge computed on basis of records for 

station near Auburn.
FEATHER RIVER BASIN 371

Bear River Canal near Coifax, Calif.

Location. Water-stage recorder, lat. 39°08', long. 120°57', in SE^ sec. 22, T. 15 N., R. 

a ji., about 500 feet downstream from diversion datt on Bear River and 2 miles north of 

Colfax. Altitude of gage, about 1,980 feet {from'topographic map).

Records available.--January 1912 to September 1950. 

Average discharge.--36 years (1914-50), 257 second-feet.

Extremes.--Maximum daily discharge'during year, 473 second-feet Jan. 15; no flow Mar. 19 

 fo Apr. 9.

1912-50: Maximum discharge recorded, 498 second-feet May 11, 1945; no flow at times.

Remarks. Canal diverts from left bank of Bear River in sec. 22, T. 15 N., R. 9 E. Water 

Is 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 Fork American 

River.

Cooperation.--Records of daily discharge furinshed by Pacific Gas & Electric Co.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

241 

218 

232 

220 

223

192 

197 

205 

214 

214

219 

235 

229 

234 

181

156 

169 

212 

306 

282

303 

245 

285 

257 

298

212 

218 

208 

202 

169 

222

Nov.

299 

234 

245 

238 

222

202 

255 

360 

377 

433

257 

213 

277 

398 

330

265 

253 

280 

228 

208

289 

303 

370 

230 

276

269 

200 

348 

380 

370

Dec.

357 

307 

273 

308 

410

420 

383 

405 

390 

380

398 

414 

403 

364 

417

405 

271 

361 

395 

380

371 

370 

307 

291

182

172 

329 

266 

272 

333 

249

Jan.

187 

189 

337 

433 

357

371 

348 

314 

" 363 

375

373 

366 

346 

348 

473

470 

329 

265 

373 

395

397 

393 

383 

360 

397

414 

415 

. 396 

398 

427 

427

Feb.

415 

430 

\440 

373 

347

347 

348 

349 

344 

346

196 

449 

449 

446 

446

446 

446 

446 

446 

456

465 

465 

465 

465 

465

445 

462 

463

Month

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Marc

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

462 

462 

463 

463 

463

463 

462 

463 

463 

463

463 

464 

464 

.463 

463

463 

463 

309 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

83

263 

370 

450 

461 

458

453 

435 

450 

452 

453

450 

457 

455 

464 

457

462 

462 

463 

464 

462

Secondfoot -days

6,998 

8,609 

10,583

122,744

11,418 

11,662 

8,179 

8,924 

14,332 

13,758 

11,439 

11,249 

12,678

129,829

May

462 

462 

462 

462 

462

464 

464 

464 

464 

464

464 

468 

464 

464 

464

465 

464 

465 

465 

458

386 

468 

467 

465 

467

468 

468 

468 

468 

468 

468

Maximum

306 

433 

420

474

473 

465 

464 

464 

468 

471 

435 

400 

468

473

June

468 

469 

471 

469 

447

468 

468 

468 

469 

469

469 

469 

468 

468 

469

469 

456 

467 

468 

468

467 

468 

468 

468 

468

468 

441 

380 

390 

403

July

338 

324 

385 

370 

435

397 

346 

324 

316 

388

360 

376 

400 

385 

375

375 

'370 

385 

375 

365

372 

370 

377 

407 

372

336 

321 

365 

385 

355 

390

Minimum

156 

200 

172

0

187 

196 

0 

0 

386 

380 

316 

321 

296

0

Aug.

390 

396 

400 

400 

376

326 

340 

368 

366 

386

375 

342 

329 

324 

376

374 

363 

367 

362 

376

347 

366 

362 

356 

330

347 

321 

350 

372 

378 

384

Mean

226 

287 

341

336

368 

416 

264 

297 

462 

459 

369 

363 

423

356

Sept.

439 

457 

451 

452 

453

452 

453 

456 

454 

456

460 

457 

385 

322 

347

339 

333 

296 

335 

370

458 

464 

461 

468 

460

464 

433 

410 

447 

446

Runoff in 

acre-feet

13,880 

17,080 

20,990

243,500

22,650 

23,130 

16,220 

17,700 

28,430 

27,290 

22,690 

22,310 

25,150

257,500
372 AMERICAN RIVER BASIN

North Fork American River at North Fork Dam, Calif.

Location.--Water-stage recorder above spillway of North Fork Dam, lat. 38°56', long.

 I2TT01', in SEij sec. 30, T. 13\H., R. 9 E., 2 miles upstream from Middle Pork and 4 miles

northeast of Auburn. Datum of gage is 715.0 feet above mean sea level (levels by Corps

of Engineers).

Drainage area. 343 square miles.

Records available.--October 1941 to September 1950.

Extremes. Maximum discharge during year, 8,440 second-feet Feb. 6 (gage height, 4.60 feet); 

minimum daily, 26 seeond-feet Sept. 6.

1941-50: 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; no flow Aug. 27-30, Sept. 2-11, 1944 (result of regulation).

Remarks. Records good except those for Oct.l to Nov. 7, July 20 to Sept. 29, which are 

lair. Some storage and a few diversions above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

33 

30 

28 

28 

28

a28 

a30 

a30 

a32 

a32

a34 

a34 

a36 

36 

. 36

33 

28 

28 

28 

28

30 

33 

33 

33 

33

33 

33 

36 

36 

36 

36

Nov.

33 

33 

33 

33 

33

33 

39 

53 

99 

389

220 

113 

87 

83 

75

71 

67 

67 

67 

63

63 

63 

63 

60 

63

67 

67 

63 

63 

67

Dec.

67 

63 

63 

63 

63

63 

63 

63 

60 

63

63 

56 

60 

56 

63

67 

104 

176 

279 

159

104 

95 

91 

87 

79

75 

71 

71 

71 

75 

71

Jan.

71 

75 

71 

63 

67

67 

75 

108 

108 

108

159

154 

118 

170 

133

260 

3,160 

4,240 

2,030 

1,300

1,620 

4,520 

5,420 

3,590 

1,760

1,200 

1,000 

1,500 

1,250 

945 

785

Feb.

652 

582 

556 

3,750 

5,080

6,550 

3,540 

2,160 

1,610 

1,410

1,400 

1,190 

1,070 

975 

985

1,020 

975 

935 

955 

965

915 

875 

875 

865 

885

945 

1,020 

995

Honth

Goto 

Nove 

Dece

Ca

Janu. 

Febp 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949 . ..... . ... ....

ter year 1949-50 .......................

Mar.

945 

925 

895 

925 

1,050

1,040 

885 

785 

725 

670

661 

599 

582 

531 

522

514 

679 

855 

1,840 

2,660

1,620 

2,010 

1,900 

2,770 

'2,770

1,920 

1,620 

1,440 

1,360 

1,390 

1,560

Apr.

1, 

1, 

1, 

1, 

1,

2, 

2, 

2, 

2, 

1,

1, 

1, 

2, 

1, 

1,

1, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2,

1, 

1,

Secondfoot-days

992 

2,330 

2,604

190,736

36,127 

43,735 

38,648 

64,490 

59,980 

25,897 

4,963 

1,505 

1,041

282,312

Peak discharge (base, 4,300 sec. -ft. ). Jan. 18 (5 a.m.

sec. -ft. ; Feb. 6 (9 a.m.) 8,440 sec. -Ft.; Mar. 19 (9 p.m. 

a Mo gage-height record; discharge Interpolated.

620 

760 

820 

780 

830

280 

270 

500 

160 

860

720 

720 

180 

950

780

990 

220 

250 

420 

720

920 

940 

600 

340 

170

340 

400 

300 

870 

780

May

1,950 

1,740 

1,520 

1,33O 

1,270

1,280 

,1,200 

/1,110 

1,110 

1,220

1,420 

1,720 

1,820 

2,080 

2,430

2j420 

2,470 

2,250 

2,110 

2,130

2,330 

2,530 

2,420 

2,400 

2,470

2,360 

2,220 

2,270 

2,060 

2,130 

2,210

Maximum

36 

389 

279

4,080

5,420 

6,550 

2,770 

2,940 

2,530 

2,100 

384 

71 

53

6,550

June

2,100 

1,950 

1,770 

1,480 

1,410

1,360 

 1,050 

845 

795 

765

815 

785 

715 

706 

688

745 

725 

688 

688 

745

755 

688 

616 

548 

481

424 

392 

376 

392 

400

July

384 

353 

323 

293 

265

230 

212 

200 

188 

182

176 

164 

154 

148 

138

133 

123 

118 

113 

108

104 

99 

91 

91 

87

83 

87 

83 

83

79 

71

Aug.

71 

67 

67 

63 

63

60 

60 

56 

56 

53

53 

53 

50 

50 

46

46 

46 

43 '43 

40

43 

43 

43

40 

40

37 

37 

34 

34 

34 

34

Sept.

32 

32 

29 

29 

29

26 

29 

32 

34 

34

32 

32 

37 

34 

34

34 

40 

53 

55 

46

43 

37 

34 

32 

32

32 

32 

' 32 

32 

34

Mini Mean %£*£

28 32.0 1,970 

33 77.7 4,620 

56 84.0 5,160

28 523 378,300

63 1/165 71,660 

556 1,562 86,750 

514 1,247 76,660 

1,620 2,150 127,900 

1,110 1,935 119,000 

376 863 51,370 

71 160 9,840' 

34 48.5 2,990 

26 34.7 2,060

26 773 560, 008

) 5,140 sec. -ft.; Jan. 23 (5 p.m.) 8,310 

) 4,350 sec. -ft.
AMERICAN RIVER BASIN 373

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. 

B E., 800 feet downstream, from Rattlesnake Bridge, 3 miles downstream from Pilot Creek, 

and 6 miles south.of Auburn. Datum of gage is 343.65 feet above mean sea level (riverprofile survey).

Drainage area. 999 square miles.

Records available. November 1930 to September 1937, December 1938 to September 1950.

Average discharge.--17 years (1931-37, 1939-50), 2,278 second-feet.

Extremes. Maximum discharge during year, 25,100 second-feet Jan. 23 (gage height, 12.18 

reet); minimum, 49 second-feet Oct. 7.

1930-50: Maximum discharge, 95,000 second-feet Jan. 21, 1943 (gage height, 26.5 

feet), from rating curve extended above 27,000 second-feet; minimum, 6.5 second-feet 

Aug. 15, 1931.

Remarks. Records good. Flow slightly regulated by small reservoirs above station; low 

Flow greatly affected by diversions into North Fork ditch and inflow from Bear and Yuba 

River Basins through South Canal of Pacific Gas. & Electric Co.

Rating tables, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Jan. 23 Jan. 24 to Sept. 30

-0.1 52 1.4 595 6.0 7,320 0.0 84 0.6 244 1. 

.1 84 1.9 960 7.0 9,450 .2 126 .9 360 2. 

.3 127 2.5 1,560 8.5 13,000 .4 180 1.2 510 2. 

.5 180 3.4 2,710 9.5 15,800 *. 4. ,.-, .7 245 4.0 3 600 Mote. Same as preceding table 

l!o 370 s!o 5*320 2.5 feet.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7

e

9 

10

11

12 

13

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

76 

79 

67 

62 

54

55 

52 

55 

66

72

74 

90 

113 

130 

140

96 

104 

143 

185 

244

264 

172 

226 

225 

254

282 

138 

124 

151 

157 

122

Nov.

223 

214 

171 

217 

208

119 

265 

211 

433 

1,210

924 

469 

438 

464 

496

397 

354 

395 

327 

302

327 

477 

370 

372 

304

388 

370 

342 

480 

458

Dec.

500 

436 

338 

329 

466

436 

448 

470 

421 

438

431 

435 

422 

419 

457

444 

558 

556 

936 

670

533 

479 

486 

363 

288

298 

325 

387 

425 

363 

401

Jan.

283 

306 

413 

367 

442

443 

456 

534 

530 

552

698 

655 

591 

739 

723

1,020 

6,790 

10,400 

6,030 

3,810

3,890 

14,100 

15,600 

11,300 

5,640

3,850 

3,240 

4,340 

3,580 

2,860 

3,490

Feb.

2,130 

1,910 

1,810 

8,320 

11,600

14,600 

8,860 

5,740 

4,400 

3,810

3,790 

3,470 

3,200 

3,000 

2,930

3,110 

3,050 

2,910 

2,960 

3,050

2,950 

2,860 

2,850 

2,770 

2,880

3,060 

3,320 

3,320

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

MAV

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 194S

ter year 1949-50 .......................

Peak discharge (base, 12,000 sec. -ft.). J

,15,700 sec. -ft.; Feb. 6 I 10:30 a.m.; 18,600

Mar.

3,200 

3,110 

3,050 

3,080 

3,480

3,710 

3,180 

2,880 

2,680 

2,510

2,400 

2,240 

2,160 

2,050 

1,990

1,910 

2,300 

2,960 

4,230 

8,480

5,000 

5,510 

5,620 

7,120 

7,200

5,020 

4,190 

3,820 

3,570 

3,620 

4,090

Apr.

4,310 

4,780 

5,120 

5,140 

5,180

6,390 

6,730 

7,150 

5,990 

5,180

4,980 

5,030 

6,050 

5,870 

5,270

5,810 

6,860 

7,170 

7,760 

8,560

9,360 

9,560 

8,580 

7,820 

7,130

7,700 

7,950 

7,680 

6,150 

5,800

Secondfoot-days

4,072 

11,725 

13,958

578,961

106,672 

118,660 

116,360 

197,060 

188,390 

90,390 

19,066 

4,399 

6,424

877,176

May

6,190 

5,640 

4,740 

4,060 

3,890

3,920 

3,660 

3,410 

3,350 

3,650

4,230 

5,270 

5,910 

6,800 

7,680

7,640 

7,740 

7,170 

6,570 

6,770

7,280 

7,760 

7,740 

7,700 

7,550

7,400 

7,090 

7,260 

6,450 

6,800 

7,070

Maximum

282 

1,210 

936

10,400

15,600 

14,600 

8,480 

9,560 

7,760 

6,900 

1,590 

201 

335

15,600

June

6,900 

6,150 

5,870 

4,780 

4,600

4,620 

3,420 

2,680 

2,530 

2,430

2,740 

2,680 

2,350 

2,490 

2,490

2,740 

2,600 

2,530 

2,560 

2,850

3,110 

2,890 

2,540 

2,270 

1,850

1,600 

1,540 

1,470 

1,480 

1,630

July

1,590 

1,450 

1,340 

1,270 

1,080

956 

900 

825 

755 

736

716 

625 

589 

554 

538

494 

456 

436 

392 

374

347 

322 

303 

288 

280

273 

255 

244 

234 

227 

217

Minimum

52 

119 

288

39

283 

1,810 

1,910 

4,310 

3,350 

1,470 

217 

92 

108

52

5 690 

0 1,060 

5 1,560

above

Aug.

201 

189 

186

177 

172

174 

172 

166 

180 

160

152 

155 

174 

139 

144

142 

?39 

139 

139 

124

115 

113 

113 

113 

122

115 

100 

102 

96 

92 

94

Mean

131 

391 

450

1,586

3,441 

4,238 

3,754 

6,569 

6,077 

3,013 

615 

142 

214

2,403

Sept.

183 

183 

149 

117 

179

169

181 

126 

185 

148

202 

236 

170 

108

126

152 

158 

189 

224 

335

269 

326 

322 

335 

273

294 

255 

276 

273 

281

Runoff In 

acre-feet

8,080 

23,260 

27,690

1,148,000

211,600 

235,400 

230,800

373,700 

179,300 

37,820 

8,730 

12,740

1,740,000

fan. 23 (7 p.m.) 25,100 sec.-f);.; Feb. 4 (9:30 p.n.) 

sec. -ft. j Mar. 19 (12 p.m.) 12,100 aee.-ft.

207481 O - 52 - 25
374 AMERICAN RIVER BASIN

American River at Pair Oaks, Calif.

Location. Water-stage recorder, lat. 38°38'15", long. 121°15'55", Just upstream from 

nignway bridge at Pair Oaks, Sacramento County, and 10 miles downstream from South 

Pork. Datum of gage is 64.79 feet above mean sea level (levels by Topographic Division, Geological Survey).

Drainage area. 1,921 square miles.

Kecoras available. November 1904 to September 1950 (at several sites near highway bridge).

Average aiscnarge. 45 years (1905-50), 3,662 second-feet.

Extremes. Maximum discharge during year, 34,400 second-feet Jan. 23 (gage height,-14,00 

reef); minimum, 128 second-feet Oct. 6.

1904-50: Maximum discharge, 163,000 second-feet (revised) Mar. 25, 1928 (gage 

height, 31.45 feet, present datum), computed on basis of relation of flood stages at 

Stockton and Coover stone stable near Polsom to discharges at Pair Oaks; minimum, 3.6 

second-feet Aug. 16, 1924.

Revisions. The maximum discharge for the water year 1928 has been revised to 

163,uou second-feet Mar. 25, 1928 (gage height, 31.45 feet, present'datum), superseding 

figures published in Water-Supply Papers 671, and 861.

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.

Revisions (water years). W 861: 1928(M).

Bating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Mar. 19 Mar. 20 to Sept. 30

0.3 150 2.1 1,330 7.0 9,250 0.3 150 1.7 970 

.5 215 2.5 1,730 8.0 12,100 .5 220 2.1 1,330 

.7 29O 3.0 2,290 10.0 18,600 .7 310 2.5 1,730 

1.0 450 4.0 3,590 12.0 26,000 l!o 473 3.0 2,300 

1.3 650 5.0 5,070 1.3 665 4.0 3,670 

1.7 970 6.0 (5,880

Discharge, in second- feet, water year October 1949 tc September 1950

Da,

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

198 

198 

194 

184 

177

168 

171 

174 

184 

218

215 

215 

229 

243 

254

250 

204 

212 

243 

323

340 

326 

278 

320 

299

402 

333 

262 

274 

286 

282

Nov.

278 

396 

299 

328 

340

294 

312 

371 

594 

1,400

1,710 

880 

692 

643 

699

580 

517 

573 

531 

474

510 

643 

615 

538 

492

538 

587 

538 

671 

699

Dec.

685 

622 

580 

492 

580

601 

615 

566 

552 

545

517 

552 

517 

545 

643

664 

776 

760 

1,220 

1,060

736 

643 

685 

622 

517

438 

462 

566 

594 

524 

587

Jan.

468 

468 

510 

531 

517

601 

603 

744 

824 

784

1,080 

1,030 

934 

1,110 

1,110

1,150 

11,400 

17,000 

9,570 

5,750

4,940 

19,600 

20,700 

19,900 

8,400

5,530 

4,460 

6,280 

5,680 

4,300 

3,650

Feb.

3,130 

2,740 

2,570 

10,900 

20,400

22,800 

14,500 

8,620 

6,500 

5,540

5,480 

5,100 

4,580 

4,280 

4,130

4,280 

4,310 

4,070 

4,060 

4,220

4,190 

4,040 

3,970 

3,950 

4,000

4,220 

4,520 

4,670

Month

Goto 

Hove 

Dece

Ca

Jann 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

her....................................

riber................................. ..

lendar year 1949 

ary

uarv rT:::::::::::::::::.:::::::::::::::::

eriBer. .................................

ter year 1949-50 ......................

Mar.

4,490 

4,340 

4,250 

4,250 

4,660

5,250 

4,580 

4,120 

3,870 

3,630

3,490 

3,350 

3,120 

3,000 

2,950

2,810 

3,010 

4,340 

f5,390 

f 13, 700

7,920 

7,300 

8,530 

10,700 

13,200

8,320 

6,760 

6,120 

5,670 

5,540 

6,040

Apr.

6,400 

6,820 

7,380 

7,480 

7,830

8,740 

10,000 

11,500 

9,370 

88,400

7,400 

7,440 

8,840 

8,460 

7,62O

8,270 

9,870 

10,300 

11,300 

12,700

14,200 

14,600 

12,800 

11,800 

11,100

11,800 

12,300 

12,000 

9,840 

9,010

Seccndfoot-days

7,656 

17,742 

19,486

929,629

159,629 

175,770 

174,700 

295,570 

296,650 

160,670 

37,015 

8,689 

10,170

1,363,747

Peak discharge (base. 20,000 sec. -ft.). --Jan. 22 (2i3C

34,400 sec. -ft.; Feb. 4 (12 p.m.; £7,OOO sec .-ft.; Feb.

May

9,200 

9,710 

7,720 

6,660 

6,240

6,130 

5,900 

5,530 

5,320 

5,540

6,310 

7,540 

8,650 

10,000 

11,400

12,000 

12,100 

11,500 

10,500 

10,700

11,400 

12,200 

12,200 

12,100 

11,900

11,800 

11,300 

11,800 

10,500 

11,300 

11,500

Maxim*

402 

1,710 

1,220

25,500

20,700 

22,800 

13,700 

14,600 

12,200 

11,600 

3,080 

* 393 

503

22,800

June

11,600 

10,400 

9,760 

8,180 

7,740

7,880 

6,260 

5,020 

4,530 

4,420

4,730 

4,900 

4,260 

4,350 

4,390

4,850 

4,760 

4,660 

4,760 

5,170

5,630 

5,320 

4,760 

4,230 

3,540

3,090 

2,910 

2,770 

2,770 

3,030

Minim*

168 

278 

438

142

468 

2,570 

2,810 

6,400 

5,320 

2,770 

421 

190 

176

168

July

3,080 

2,810 

2,540 

2,340 

2,140

2,230 

1,720 

1,600 

1,470 

'1,340

1,350 

1,230 

1,150 

1,080 

1,020

988 

882 

858 

780 

742

693 

632 

585 

540 

516

491 

461 

461 

438 

427 

421

5.0 5,290 

6.0 7,10O 

7.0 9,320 

8.0 12,100 

9.0 15,200

Aug.

393 

383 

366 

356 

361

351 

351 

310 

315 

320

310 

305 

305 

305 

272

277 

272 

268 

263 

254

233

216 

216 

237 

220

224 

212 

209 

205 

190 

190

Mean

247 

591 

629

2,547

5,149 

6,278 

5,635 

9,852 

9,569 

5,356 

1,194 

280 

339

3,736

Sept.

193 

301 

277 

259 

176

301 

341 

320 

263 

341

277 

330 

356 

272 

233

263 

277 

320 

315 

432

432 

467 

467 

491 

388

503 

356 

421 

383 

415

Runoff in 

ao re-feet

15,190 

35,190 

58,650

1,844,000

316,600 

348,600 

346,500 

586,300 

588,400 

318,700 

73,420 

17,230 

20,170

2,705,000

p.m.) 28.200 sec. -ft.; Jan. '23 (11 p.m.) 

6 (2 p.m.} 28,300 sec. -ft.

a No gage-height record; discharge Interpolated.

f Computed on basis of partly estimated gage-height record.
AMERICAN RIVER BASIN 

American River at Sacramento, Calif.

375

location. Water-stage recorder, lat. 38°34 t 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 

uecemoer 1942 (low-water periods only), May 1943 to September 1950.

Extremes. Maximum discharge during year, 29,700 second-feet Jan. 24; maximum gage height,

 31732" feet (backwater); minimum discharge, 171 second-feet Sept. 5 (gage height, 18.18 

feet).

1921, 1929-32, 1934-50: Maximum discharge not determined; 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.

Discharge, in second-feet, water'year October 1949 to September 195O

Bey

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

204 

204 

210 

194 

186

178 

178 

178 

173 

210

238 

226 

238 

260 

266

296 

249 

232 

260 

320

372 

372 

302 

326 

340

37S 

421 

320- 

278 

314 

314

Mov.

302 

392 

346 

314 

352

359 

302 

421 

457 

978

1,840 

1,000 

692 

629 

683

620 

512 

527 

569 

473

457 

535 

647 

535 

512

480 

535 

519 

812 

683

Dec.

638 

620 

569 

496 

527

603 

603 

57S 

552 

552

535 

569 

535 

527 

620

656 

720 

75S 

1,050 

1,140

796 

647 

656 

683 

560

457 

473 

504 

578 

552 

588

Jan.

544 

457 

465 

552 

488

569 

603 

674 

805 

767

968 

989 

916 

1,010 

1,110

1,040 

8,500 

15,400 

10,700 

6,500

4,980 

15,000 

18,200 

23,100 

11,000

6,940 

4,730 

6,190 

6,320 

4,530 

3,650

Feb.

3,150 

2,610 

2,430 

6,850 

20,600

21,600 

15,900 

8,870 

6,890 

5,410

5,220 

5,050 

4,570 

4,860 

4,340

4,420 

4,480 

4,210 

4,150 

4,300

4,260 

4,130 

4,000 

3,980 

4,020

4,240 

4,540 

4,840

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Mare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

her. ....................................

giber ...

lendar year 194 }.......................

ter year 1949-50 .......................

Mar.

4,600 

4,440 

4,340 

4,260 

4,640

5,540 

4,780 

4,210 

3,940 

3,710

3,510 

3,450 

3,200 

3,070 

3,020

2,880 

3,020 

4,380 

4,150 

12,500

8,520 

7,240 

9,070 

9,760 

14,000

9,720 

7,960 

6,730 

5,940 

5,730 

6,130

Apr.

6,620 

7,080 

7,740 

7,940 

8, ISO

8,870 

10,300 

11,300 

10,700 

8,910

7,960 

7,850 

8,520 

9,440 

8,210

8,380 

9,740 

10,500 

11,100 

12,200

13,600 

14,100 

12,300 

12,800 

11,300

11,700 

12,100 

12,000 

10,400 

9,490

Secondfoot -days

8,239 

17,283 

19,340

927,568

157,697 

173,920 

178,460 

301,330 

300,660 

164,130 

37,359 

8,694 

10,699

1,377,811

May

9,600 

9,830 

8,250 

7,130 

6,530

6,420 

£,210 

5,730 

5,480 

5,670

6,400 

7,880 

9,030 

10,100 

11,400

11,900 

12,100 

11,600 

10,800 

10,900

11,300 

12,000 

12,000 

12,000 

11,900

11,900 

11,400 

11,700 

10,800 

11,200 

11,500

Maxima

421 

1,840 

1,140

19,100

23,100 

21,600 

14,000 

14,100 

12,100 

11,600 

3,100 

378 

505

23,100

June

11,600 

10,700 

10,200 

8,800 

8,230

8,230 

6,800 

5,290 

4,500 

4,420

4,680 

4,940 

4,300 

4,260 

4,380

4,760 

4,760 

4,700 

4,660 

5,140

5,690 

5,480 

4,820

4,300 

3,670

3,150 

2,960 

2,860 

2,800 

3,050

July

3,100 

2,930 

2,640 

2,420 

2,300

2,060 

1,790 

1,650 

1,490 

1,390

1,360 

1,260 

1,140 

1,090 

1,030

990 

880 

836 

781 

720

652 

598 

572 

538 

506

482 

466 

435 

435 

420 

399

NlnlBUB

173 

302 

457

- 152

4571 

2,430 

2,880 

6,620 

5,480 

2,800 

399 

205 

210

173

Aug.

376 

364 

350 

331 

331

350 

331 

325 

300 

325

293 

287 

293 

306 

276

264 

276 

270 

264 

264

247 

236 

230 

236 

241

236 

225 

225 

225 

210 

205

Mean

266 

576 

624

2,541

5,087 

6,211 

5,757 

10,040 

9,699 

5,471 

1,205 

280 

357

3,775

Sept.

210 

300 

306 

276 

215

287 

331 

350 

312 

344

306 

357 

364 

331 

264

253 

287 

306 

331 

392

505 

435 

505 

489 

458

466 

435 

420 

406 

458

Runoff In 

acre-feet

16,340 

34,280 

38,360

1,845,"000

312,800 

345,000 

554,000 

597,700 

596,400 

325,500 

74,100 

17,240 

21,220

2,733,000
376 AMERICAN RIVER BASIN

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. 

STE77 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.

Kecoras available. December 1930 to September 1950. October 1911 to December 1930 at 

site nail a mile downstream.

Average discharge. 39 years, 1,352 second-feet.

extremes. Maximum discharge during year, 14,900 second-feet Jan. 23 (gage height, 15.60 

1'eet); minimum, 48 second-feet Oct. 6.

1911-50: 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 floddmarks); 

minimum, 20 second-feet Sept. 6, 1931, Sept. 19, 1934.

Remarks.--Records good. Small storage and diversions above station.

Kevisldns (water years). W 861: 1928.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Jan. 23 Jan. 23 to Sept. 30

1.7 46 4.0 540 1O.O 4.52O 1.1 57 3.1 4O8 8 

1.9 63 4.5 722 11.0 5,800 1.3 77 3.5 52O 9 

2.1 86 5.0 930 12.0 7,34O 1.6 110 4.0 685 10 

2.4 129 6.0 1,430 13. O 9,180 1.9 150 5.O 1,080 11 

2.7 184 7.0 2,000 13.2 9,580 2.3 222 6.0 1,550 12 

3.0 250 8.0 2,670 2.7 3O8 7.0 2,100 

3.5 382 9.0 3,500

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

55 

53 

52

51 

50

48 

50 

54 

59 

60

59 

61 

60 

59 

58

54 

52 

52 

52 

55

58 

59 

59 

59 

58

56 

55 

54 

54 

53 

52

Nov.

52 

52 

51 

51

51

50 

50 

56 

101 

532

383 

216 

155 

126 

119

118 

116 

115 

115 

115

116 

115 

113 

110 

110

136 

151 

143 

126 

153

Dec.

146

131 

119 

112 

1O9

107 

105 

102 

98 

94

91 

86 

80 

84 

87

92 

136 

236 

348 

220

143 

129 

126 

123 

118

115 

110 

110 

110 

113 

113

Jan.

113 

119 

109 

92 

107

102 

113 

151 

150 

164

212 

190 

174 

238 

199

464 

3,320 

5,320 

3,160 

2,040

2,120 

9,300 

9,400 

6,080 

2,900

1,940 

1,640 

2,170 

1,670 

1,300 

1,090

Feb.

910 

830 

798 

4,06O 

5,570

7,410 

4,470 

2,920 

2,270 

1,970

2,080 

1,800 

1,610 

1,510 

1,520

1,640 

1,580 

1,520 

1,590 

1,620

1,560 

1,520 

1,530 

1,540 

1,600

1,730 

1,910 

1,880

Month

Octo 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay.

June 

July 

Augu 

Sept

Ha

 her. ...................................

lendar year 1949 

ax*y

8t. ... ^. ................................

ter year 1949-50 .......................

Mar.

1,800 

1,750 

1,700 

1,78O 

2,140

2,180 

1,810 

1,620 

1,500 

1,370

1,340 

1,180 

1,030 

1,070 

1,020

1,010 

1,390 

1,820 

3,260 

5,060

3,130 

3,740 

3,510 

4,330 

3,740

2,920 

2,520 

2,320 

2,210 

2,290 

2,660

Apr.

2, 

3, 

3, 

3, 

3,

4,

4, 

4, 

3, 

3,

3, 

3, 

3, 

3, 

3,

3, 

4, 

4, 

5, 

5,

6, 

6, 

5, 

5, 

4,

5, 

5, 

5, 

4, 

3,

Secondfoot-days

1,711 

3,897 

3,893

341,985

56,147 

60,948 

69,200 

128,300 

136,980 

63,740 

15,474 

3,208 

2,137

535,635

820 

170 

420 

420 

570

220 

520 

470 

700 

230

020 

070 

750 

460 

180

560 

350 

590 

060 

680

170 

240 

570 

120 

760

260 

350 

040 

600 

930

May

4,370 

3,570 

3,000 

2,600 

2,520

2,530 

2,310 

2,140 

2,150 

2,410

2,900 

3,590 

4,0.20 

4,68O 

5,220

5,150 

5,140 

4,860 

4,470 

4,650

5,110 

5,360 

5,230 

5,220 

5,100

4,970 

4,800 

4,870 

4,380 

4,680 

4,880

Maximum

61 

532 

348

7,400

9,400 

7,410 

5,060 

6,240 

5,360 

4,740 

1,340 

152 

97

9,400

June

4,740 

4,230 

4,000 

3,310 

3,230

3,300 

2,310 

1,770 

1,670 

1,700

1,860 

1,8EO 

1,580 

1,760 

1,770

1,940 

1,840 

1,800 

1,880 

2,120

2,310 

2,090 

1,860 

1,620 

1,260

1,160 

1,120 

1,120 

1,240 

1,330

July

1,340 

1,200 

1,070 

974

874

766 

724 

664 

622 

598

574 

508 

484 

451 

445

413 

382 

356 

327 

306

286 

Z66 

251 

238 

224

212 

202 

193 

184 

177 

163

0 2.82O 

0 3,720 

0 4, 800 

0 6,100 

0 7,680

Aug.

152 

144

142 

136 

135

132 

130 

123 

118 

115

111 

108 

104 

101 

101

103 

100 

98 

94 

89

85 

82 

81 

89 

91

80 

76 

74 

73 

71 

70

Minimum Mean

48 55.2 

50 130

80 126

47 937

92 1,811 

798 2,177 

1,010 2,232 

2,820 4,277 

2,140 4,096 

1,120 2,125 

163 499 

70 103 

60 71.2

48 1,467

Sept.

67 

65 

64 

63 

62

61 

60 

63 

67 

68

69 

69 

74 

76 

75

74 

78 

84 

97 

91

84 

78 

73 

71 

70

69 

68 

67 

66 

64

Runoff In 

acre-feet

3,390 

7,730 

7,720

678,200

111,400 

120,900 

137,300 

254,500 

251,900 

126,400 

30,690 

6,360 

4,240

1,063,000

Peak discharge (base, 6,500 sec.-ft.). Jan. 23 (6 p.n 

9,030 sec.-ft.; Mar. 19 (9:3O p.m.; 7,860 sec.-ft.; Apr.

.) 14,900 sec.-ft.J Feb. 6 (10:30 a.m.) 

22 (4:30 a.m.) 7,090 sec.-ft.
AMERICAN RIVER BASIN 377

Rubicon River near Georgetown, Calif.

Location.--Water-stage recorder, lat. 38°58", long. 120 C 29', in SE£ sec. 23, T. 13 N., 

R. 13 E., 1 mile dovmstream 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 1950. November 1909 to June 1914, published as 

Rubicon Kiver near Quintette.

Average discharge.--10 years (1910-13, 1943-50), 515 second-feet.

Extremes.--Maximum discharge during year, 5,320 second-feet Jan. 22 (gage height, 10.40 

reet), from rating curve extended above 2,700 second-feet by logarithmic plotting; minimum, 6.6 second-feet Nov. 4-7.

1943-50: 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 periods of doubtful gage-height record, which are 

TaTr. Plow regulated by Loon Lake beginning in 1884 (usable capacity, 8,000 acre-feet) 

on Gerle Creek, where most of stored water is diverted out of the watershed in Georgetown ditch (see following page).

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

9.2 

8.6 

7.6 

7.2 

7.0

7.0 

9.9 

9.2 

8.4 

8.9

10 

10 

9.7 

8.4 

8.9

7.9 

7.4 

7.6 

9.2 

9.4

9.2 

8.9 

8.4 

8.4 

8.4

8.1 

7.9 

7.9 

7.6 

7.4 

7.2

Nov.

7.0 

6.8 

6.8 

6.6 

6.6

6.6 

6.8 

11 

38 

93

43 

29 

27 

32 

36

37 

40 

40 

42 

43

42 

39 

37 

44 

70

68 

58 

65 

79 

65

Dec.

52 

43 

39 

35

31

29 

28 

27 

24 

22

18 

17 

18 

19 

18

19 

22 

27 

27 

26

32 

34 

33 

31 

28

27 

27 

28 

30 

30 

29

Jan.

29 

29 

29 

d25 

d27

d26 

d29 

d40 

d40 

d43

d54 

d49 

d45 

d60 

d51

d!40 

dl,100 

dl,700 

1,050 

714

1,030 

4,080 

3,040 

1,500 

d600

d450 

d400 

dSOO 

377 

337 

306

Feb.

277 

275 

273 

1,070 

1,220

1,360 

757 

552 

468 

462

541 

444 

421 

424 

471

507 

471 

481 

527 

531

503 

500 

520 

541 

586

666 

726 

682

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 194S

ter year 1949-50 .......................

MSr.

654 

630 

626 

714 

960

770 

626 

559 

507 

465

450 

404 

390 

385 

372

385 

592 

594 

1,780 

1,560

985 

1,450 

1,020 

855 

722

630 

594 

582 

626 

739 

900

Apr.

1,000 

1,250 

1,380 

1.38O 

1,450

1,810 

1,780 

1,070 

935 

850

875 

965 

1,250 

1,000 

1,060

1,450 

1,810 

1,990 

2,280 

2,650

2,870 

2,800 

2,520 

2,340 

2,320

2,620 

2,700 

2,410 

1,940 

2,010

Secondfoot-days

260.9 

1,125.2 

870

146,111.1

17,900 

16,256 

22,526 

52,765 

68,550 

41,345 

10,393 

1,192 

546

233,729.1

May

2,080 

1,530 

1,240 

1,060 

1,070

1,070 

950 

880 

940 

1,160

1,580 

2,000 

2,350 

2,680 

2,850

2,810 

2,790 

2,650 

2,560 

2,700

2,950 

3,050 

3,000 

3,000 

2,920

2,870 

2,920 

2,880 

 2,150 

2,880 

3,000

Maximum

10 

93 

52

4,180

4,080 

1,360 

1,780 

2,870 

3,050 

2,830 

955 

68 

22

4,080

June

2,830 

2,650 

2,390 

2,100 

2,150

2,000 

1,240 

950 

1,000 

1,O90

1,250 

1,020 

990 

1,150 

1,270

1,300 

1,240 

1,240 

1,380 

1,590

1,630 

1,450 

1,300 

1,040 

816

784 

784 

811 

925 

975

July

955 

845 

762 

698 

626

548 

524 

471 

456

441

379 

354 

325 

325 

299

273 

246 

217 

195 

176

160 

149 

141 

129 

121

116 

109 

104 

93 

83 

73

Minimum

7.0 

6.6 

17

6.6

29 

273 

372 

850 

880 

784 

73 

19 

14

6.6

Aug.

68 

65 

63 

60 

58

54 

50 

45 

a44 

a43

h42 

a42 

a42 

h42 

h42

a40 

h37 

h32 

a30 

a29

h27 

h34 

h30 

a27 

a25

22 

21 

20 

20 

19 

19

Mean

8.42 

37.5 

28.1

400

577 

581 

727 

1,759 

2,211 

1,378 

335 

38.5' 

18.2

640

Sept.

19 

19

18 

18 

17

17 

17 

17 

17 

17

18 

20 

20 

19 

19

19 

19 

21 

22 

22

20 

20 

19 

18 

17

16 

16 

16 

15 

14

Runoff in 

acre -feet

517 

2,230 

1,730

289,800

35,500 

32,240 

. 44,680 

104,700 

136,000 

82,010 

20,610 

2,360 

1,080

463,700

Peak dlseharne (base, 3,500 sec . -ft . ) . Jan . 22 (8 a.m.) 5.320 sec. -ft.: Bay 21 fll o.m.) 3,690

sec.-rfc.

a No gage-height record; discharge Interpolated.

d Doubtful gage-height record) discharge computed on basis of records for Middle Fork American 

River near Auburn.

h Computed from staff-gage reading.
378 AMERICAN RIVER BASIN

Georgetown ditch above Pilot Creek, near Georgetown, Calif.

Location. Water stage recorder and wooden control, lat. 38°56', long. 120 0 29', in Sw£ 

sec. 25, T. 13 N., R. 13 E., 0.5 mile northeast of Uncle Toms Cabin and 20 miles east 

of Georgetown. Altitude of gage, about 5,070 feet (from topographic map).

Records available. May 1947 to September 1950.

Extremes. Maximum daily discharge during year, 27 second-feet Sept. 30; no flow for 

several months.

1947-50: Maximum daily discharge, 27 second-feet Aug. 15-19, 1949, Sept. 30* 1950; 

no flow for several months each year.

Remarks. Records good. Ditch diverts from Gerle Creek, Rubicon River Basin, into Pilot 

 Ureek and at times from Little South Pork Rubicon River. Plow is then diverted from

Pilot Creek, about 8 miles downstream, for domestic and irrigation purposes in \vicinity

of Gerogetown. (See Georgetown ditch near Georgetown, p. 380).

Discharge, In second-feel;, water year October 1949 to September 1950

Day

1 

Z 

5 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

£2 

23 

£4 

25

2« 

27 

28 

29 

30 

31

Oct.

16 

12 

11 

10 

9.5

9.2 

6.9 

9.7 

9.3 

9.5

6.0 

5.3 

4.7 

5.0 

3.8

2.5 

.8 

.4 

0 

0

0 

0 

O 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

Bber. .............-----------.----------

lendar year 1949 

ary

Amber . .

ter year 1949-50 .......................

Mar. Apr.

Secondfoot-days

131.6 

0 

0

2,196.5

0 

0 

0 

0 

0 

392.3 

689 

713 

689

2,614.9

May

Maximum

16 

0 

0

27

0 

0 

0 

0 

0 

19 

24 

24 

27

27

June

0 

0 

2.0 

8.4 

8.1

10 

13 

9.1 

 9,7 

12

14 

14 

14 

11 

16

15 

15 

15 

15 

15

15 

16, 

17 

18 

19

19 

18 

17 

18 

IS

July

18 

19 

20 

20 

21

21 

21 

22 

23 

22

23 

22 

22 

23 

23

23 

23 

23 

23 

23

23 

23 

23 

23

23

23 

23 

23 

24 

23 

23

Minimum

0 

0 

O

O

0 

0 

O 

O 

0 

0 

IS 

18 

20

0

Aug.

23 ' 

23 

23 

23 

24

24 

23 

24 

24 

23

23 

23 

24 

24 

24

24 

24 

24 

24 

24

21 

18 

18 

23 

22

23 

23 

23 

23 

23 

24

Mean

4.25

0 

0

6.02

0 

0 

0 

0 

0 

13.1 

22.2 

23.0 

23.0

7.16

Sept.

24 

24 

24 

24

24

24 

25 

25 

25 

24

24 

24 

24 

23 

23

23 

23 

22 

2£ 

22

21 

21 

21 

20 

20

20 

20 

£0

26 

27

Runoff In 

ae re-feet

261 

O 

0

4,350

0 

0 

0 

0 

0 

778 

1,370 

1,410 

1,370

5,190
AMERICAN RIVER BASIN 379

Pilot Creek near Georgetown, Calif.

Location.--Water-stage recorder, lat. 38°54', long. 120°29 ! , in NE£ sec. 10, T. 12 N., R.

 iy E., 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 1950. February 1910 to July 1914, published 

as Pilot Creek near Quintette.

Extremes.--Maximum discharge during year, 435 second-feet probably Feb. 6 (gage height,

 8.78 feet); minimum, 0.3 second-foot Oct. 28 to Nov. 7.

1946-50: Maximum discharge, that of Feb. 6, 1950; minimum, that of Oct. 28 to Nov. 

7, 1949.

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

 Some inflow and diversion above station (see records for Georgetown ditch above Pilot 

Creek, near Georgetown, preceding page, and Georgetown ditch near Georgetown, following 

page, which diverts about 1 mile above station).

Discharge, In aecond-feet, water year October 1949 to September 1950

Day

1 

Z 

3 

4 

5

6

7

e

9 

10

11

13 

13 

14 

IS

16 

17 

16 

19 

?P

31 

23 

33 

34 

35

36 

27 

36 

39 

30 

31

Oct.

0.6 

.5 

.5 

.4 

.4

.4 

.6 

.5 

.5 

.5

.5 

.5 

.5 

.5 

' .4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.3 

.3

Nov.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

9.4 

26

10 

6.1 

4.6 

3.6 

2.9

2.6 

2.2 

1.9

1.6 

1.4

1.1 

.9 

.9 

.6 

.6

.7

Dec.

, 0.5

Jan.

1.0

4.0 

50 

60 

36 

24

30 

110 

120 

95 

58

60 

36 

40 

32 

24 

20

Feb.

14 

14 

16 

75 

150

300 

160 

105 

80 

70

70 

62 

54 

52 

52

54 

52 

52 

54 

56

56 

55 

55 

55 

58

61 

64 

64

Month

Goto 

Move 

Dee*

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

 ber. ...........,-------.---------------

lendar year 1949

ter year 1949-50 .......................

Peak discharge (base, 150 sec.-ft. ). Abcn.

(time unknown; 435 sec. -ft.; Mar. 19 (6 p.m. 

Note. Ho gage-height record Nov. 26 to Fe

Mar.

63 

60 

59 

60 

68

68 

63 

59 

54 

52

52 

47 

43 

42 

40

40 

62 

60 

105 

119

101 

123 

110 

112 

93

83 

72 

66 

 6S 

66 

72

Apr.

76 

84 

90 

95 

100

105 

130 

120 

115 

105

105 

104 

110 

106 

108

114 

121 

125 

130 

138

139 

130 

115 

105 

96

88 

87 

77 

69 

64

Secondfoot -days

13.3 

83.8 

15.5

5,918.1

814.0 

2,010 

2,179 

3,151 

1,163.3 

179.2 

55.6 

48.1 

24.5

9,736.3

May

76 

70 

62 

58 

58

57 

55 

52 

51 

57

50 

49 

48 

45 

44

40 

36 

34 

30. 

28

26 

23 

20 

16 

17

15 

13 

11 

8 

7.4 

4.9

Maximum

0.6 

26

171

120 

300 

123 

139 

76 

9.0 

2.6 

2.3 

1.2

300

June

4.3 

3.9 

3.1 

5.4 

6.9

6.7 

8.3 

7.4 

5.8 

6.5

8.0 

9.0 

8.0 

6.3 

6.1

7.4 

6.9 

6.5 

6.3 

6.1

5.4 

4.3 

5.1 

6.0 

6.0

6.0 

5.6 

4.7 

3.9

3.3

July

2.6 

2.1 

2.6 

2.5 

2.3

2.3 

2.2 

2.0 

2.1 

2.1

2.2 

2.0 

1.9 

1.8 

1.7

1.6 

1.5 

1.5 

1.5 

1.4

1.4 

1.3 

1.3 

1.3 

1.3

1.4 

1.3 

1.5 

1.6 

1.6 

1.7

Aug.

1*8 

2.0 

2.1 

2.1 

2.3

2.2 

2.1 

2.0 

2.0 

2.0

1.9 

1.8 

1.7 

1.6 

1.6

1.6 

1.6 

1.5 

1.5 

1.6

1.5 

1.1 

.6 

.8 

1.1

1.1 

1.1 

.9 

.9 

.9 

.9

Sept.

0.8 

.8 

.8 

.7 

.8

.7 

.8 

.8 

.9 

.9

.8 -.9 

.8 

.8 

.7

.7 

.9

1.1 

1.1 

1.0

.9

.8 

.7 

.7 

.7

.7 

.7 

.7 

.6 

1.2

Mlnl«- Mean ^fee?

0.3 0.43 26 

.3 2.76 164 

.50 31

.3 16.2 11,740

26.3 1,610 

14 71.8 3,990 

40 70.3 -4,320 

64 105 6, 250 

4.9 37.5 7,310 

3.1 5.97 355 

1.3 1.79 110 

.8 1.55 95 

.6 .82 49

.3 26.7 19,310

t Jan 23 (time and discharge unknown); about Feb. 6 

) 158 sec. -ft. 

b. 13, Feb. 16 to Mar. 15, Mar. 23 to Apr. 12; discharge

computed on basis of weather records and records for Camp Creek near Camlno and other nearby streams.
380 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., R. 

12 E., 12 miles east of Georgetown.

Records available.--March 1947 to September 1950. February to January 1914 (published as 

Pilot Creek ditch near Quintette).

Extremes. Maximum daily discharge during year, 32 second-feet July 11; minimum daily 

recorded, 2.6 second-feet Mar. 16.

1947-50: Maximum daily discharge, that of July 11, 1950; minimum daily, less than 

0.5 second-foot during period of ice effect in 1949.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor. Ditch diverts from Pilot Creek, about 1 mile above station on Pilot 

Creek, for domestic and irrigation use in vicinity of Georgetown. (See also Georgetown ditch above Pilot Creek, near Georgetown, p, 378).

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

20 

18 

16 

16

 14

14 

14 

14 

15 

15

14 

11 

10 

9.4 

8.7

7.5 

7.3 

6.7 

6.6 

6.6

6.6 

6.6 

6.2 

6.1 

5.9

5.6 

5.6 

5.4 

5.2 

5.1 

5.0

Nov.

.6 

.5

.7 

.7 

.7

.7 

.9 

.8 

11 

9.0

7.5 

7.2 

6.9 

6.7 

6.6

6.6 

6.4 

6.6 

6.6 

6.4

6.3 

6.2 

6.2 

6.2 

6.3

6.2 

6.2 

6.2 

6.2 

6.1

Dec.

6.1 

6.0 

5.8 

5.8 

5.8

5.8 

5.8 

5.8 

5.6 

5.8

. b4.O

Jan.

b4.0 

b4.0

a4.0

Feb.

a4.O

(*)

3.7

3.5 

3.4 

3.3 

3.3 

3.4

3.3 

3.2 

3.2 

3.2 

3.3

3.4 

3.4 

3.4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1949 

ary

ter year 1949-5O .......................

Mar.

3.4 

3.4 

3.4 

3.4 

3.8

3.9

3.8 

3.7 

3.7 

3.4

3.3 

3.1 

3.0 

2.9 

2.8

2.6 

3.5 

3.7 

6.2 

7.5

7.1 

8.5 

7.6 

7.9 

7.2

6.5 

6.0 

5.6 

5.2 

5.1 

5.1

Apr.

5.1 

5.3 

5.6 

5.7 

5.7

6.8 

8.6 

8.5 

7.6 

7.2

6.8 

6.5 

7.1 

6.8 

7.0

7.0 

6.8 

6.6 

6.5 

6.4

6.0 

5.3 

4.9 

4.5 

6.1

9.4 

7.5 

8.6 

9.8 

10

Secondfoot-days

307.1 

190.2 

142.3

4, 679 . 9

. 124.0 

103. 0 

146.3 

205.7 

502 

788 

941 

888 

828

5,165.6

May

12 

12 

11 

11 

11

11 

10 

10 

11 

12

13 

13 

14 

16 

16

18 

19 

18 

19 

19

19 

19 

20 

20 

19

19 

20 

21 

23 

23 

23

Maximum

20 

11

30

8.5 

10 

23 

28 

32 

30 

29

32

June

23 

23 

23 

25 

25

26 

27 

26 

25 

26

27 

27 

27 

25 

26

27 

27 

26 

26 

26

26 

27 

28 

28 

28

28 

27 

27 

28 

28

Minimum

July

28 

29

30 

30 

3O

30 

30 

31 

31 

31

32 

31 

31 

31 

31

31 

31 

31 

31 

31

30 

30 

30 

30 

30

30 

30 

30 

30 

30 

30

5.0 

4.5

.5

2.6 

4.5 

10 

23 

28 

23 

23

-

Aug.

30 

30 

30 

30 

30

30 

30 

30 

30 

3O

29 

29 

29 

29 

29

29 

29 

29

«

28 

24 

23 

27 

28

28 

28 

28 

28 

28 

28

Mean

9.91 

6.34 

4.59

12.8

4.0O 

3.68 

4.72 

6.86 

16.2 

26.3 

30.4 

28.6 

27.6

14.2

Sept.

28 

28 

28 

28 

28

29 

29 

29 

29 

29

30 

30 

29 

29 

28

28 

28 

29 

29 

28

27 

26 

26 

26 

26

26 

25 

25 

25 

23

Runoff In 

acre-feet

609 

377 

282

9,280

246 

204 

290 

4O8 

996 

1,560 

1,870 

1,760 

1,640

10,240

* Winter discharge measurement made on this day. 

a No gage-height record; discharge Interpolated. 

b Stage-discharge relation affected by Ice.
AMERICAN RIVER BASIN 381

South Fork American River near Kyburz, Calif.

Location. Water-stage recorder, lat. 38°46', long. 120°19', in Sj sec. 29, T. 11 N., R. 15

i!., 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.

Kecords available.--August to December 1907, October 1922 to September 1950. 

Average aiscnarge.--28 years (1922-50), 373 second-feet, combined flow of South Fork

American River near Kyburz and El Dorado Canal. 

Extremes. Maximum discharge during year, 3,060 second-feet May 31 (gage height, 6.20

I'eet); minimum, 1.9 second-feet Dec. 11.

1922-50: Maximum discharge, 9,700 second-feet Dec. 11, 1937 (gage height, 8.55

feet), from rating curve extended above 4,000 second-feet on basis of velocity-area

studies; minimum, 0.3 second-foot Nov. 9-11, 1929. 

Remarks.--Records good except those below 50 second-feet, which are fair. Flow partly

regulated by four reservoirs since beginning of record (total usable capacity, 35,500

acre-feet). Diversions above station. (See records for El Dorado Canal, which diverts

0.5 mile above station.) 

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project.

Rating table, water year 1949-50, except periods of Ice effect

(gage height, in feet, and discharge, In second-feet) 

(Shifting-control method used Oct. 1-24, July 19 to Sept. 7)

1.2 1.9 2.0 47 4.0 628 

1.3 3.6 2.3 83 4.5 975 

1.4 5.7 2.6 130 5.0 1,420 

1.5 9.0 2.9 192 5.5 1,980 

1.6 14 3.2 272 5.9 2,550 

1.8 28 3.6 420 

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.7 

5.5 

5.7 

5.5 

6.0

5.3 

6.4 

6.0 

5.5 

6.4

5.3 

5.5 

5.5 

5.1 

4.0

3.6 

3.8 

4.0 

3.8 

3.6

3.8 

3.8 

3.6 

79 

118

115 

122 

120 

120 

120 

118

Nov.

116 

127 

132 

130 

130

127 

127 

134 

162 

130

75 

22 

21 

6.4 

5.7

5.7 

5.1 

5.3 

5.7 

5.5

5.3 

5.3 

5.3 

6.0 

6.4

5.1 

4.9 

5.3 

5.3 

6.7

Dec.

5.7 

5.7 

7.0 

5.7 

5.3

5.3 

5.5 

5.3 

5.3 

4.6

3.3 

b4 

b5 

b5.5 

*5.7

5.5 

5.7 

5.7 

6.0 

5.5

6.0 

5.5 

6.7 

6.7 

6.7

6.0 

6.0 

5.7 

5.5 

5.7 

6.4

Jan.

5.5 

5.1 

5.1 

b7 

b6

b6 

b6 

b6 

b5.5 

b5.5

b5.5 

b5.5 

b5.5 

b5.5 

b5

8.6 

86 

155 

170 

79

78 

703 

448 

211 

105

99 

63 

29

12 

5.7 

7.0

Feb.

5.1 

6.0 

24 

222 

239

270 

140 

89 

63 

56

53 

37 

32 

33 

50

68 

59 

64 

83 

90

86 

89 

102 

108 

130

164 

190 

*172

Month

OctO

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MMV

June 

July 

Augu 

Sept

Wa

lendar year 1949 

apy

ter year 1949-50 .......................

Mar.

155 

144 

147 

197 

269

206 

168 

151 

132 

118

113 

93 

87 

86 

80

80 

134 

132 

384 

425

272 

359 

285 

260 

216

183 

168 

170 

190 

239 

318

Apr.

374 

486 

548 

605 

690

703 

605 

476 

407 

355

359 

420 

511 

429 

457

647 

848 

952 

1,130 

1,350

1,510 

1,450 

1,310 

1,380 

1,490

1,610 

1,660 

1,500 

1,300 

1,330

Secondfoot-days

1,025.4 

1,528.0 

174.2

72,090.6

2,344.0 

2,724.1 ' 

5,961 

26,892 

47,193 

35,924 

4,871.4 

172.9 

285.5

129,095.5

Peak discharge (base, 2,000 sec. -ft.). May 31 (S:30 p

May

1,330 

1,010 

819 

697 

659

 659 

587 

532 

538 

659

833 

1,100 

1,290 

1,600 

1,800

1,920 

1,960 

1,860 

1,820 

1,850

1,880 

1,970 

2,020 

2,100 

2,120

2,140 

2,220 

2,150 

2,220 

2,370 

2,480

Maximum

122 

162 

7.0

2,070-

703 

270 

425 

 1,660 

2,480 

2,360 

710 

7.7 

25

2,480

June

2,360 

2,250 

1,960 

1,840 

1,900

1,650 

1,300 

1,030 

930 

960

1,040 

893 

878 

960 

1,100

1,130 

1,160 

1,180 

1,280 

1,420

1,450 

1,280 

1,090 

870 

749

647 

570 

599 

678 

770

July

710 

587 

516 

452 

382

322 

295 

219 

206 

194

125 

 132 

136 

123 

110

99 

84 

68 

30 

15

8.3 

5.5 

4.6 

6.4 

9.0

6.4 

5.5 

5.3 

5.5 

4.4 

5.5

Aug.

5 

5 

5 

4 

4

4 

4 

4 

4

5

5 

6 

6 

4 

5

5 

5 

5 

5 

5

5 

5 

5 

6 

5

6 

7 

6 

7 

7 

6

Minimum Mean

3.6 33.1 

4.9 50.9 

3.3 5.62

198

75.6 

5.1 97.3 

80 192 

355 896 

532 l',522 

570 1,197 

4.4 157 

4.6 5.58 

5.7 9.52

3.3 354

.m. ) 3,060 sec. -ft.

3

1 

1 

6 

9

6 

6 

9 

9

1

.1 

0 

.4 

9

1

5 

5 

1 

.5

.1

.5 

.1 

.7 

.0 

.5

4 

.0 

.7 

.7 

.3 

.7

Sept.

7.0 

6.0 

5.7 

6.7 

6.7

7.0 

15 

17 

8.0

11

18 

12 

9.0 

6.7 

7.0

9.0 

7.7 

12 

9.0 

7.3

7.7 

7.3 

7.0 

6.7 

7.7

25 

13 

8.3 

7.3 

7.7

Runoff In 

acre-feet

2,030 

3,030 

346

143,000

4,650 

5,400 

11,820 ' 

53,340 

93,610 

71,250 

9,660 

343 

566

256,000

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
382 AMERICAN RIVER BASIN

South Pork American River near Camino, Calif.

Location.--Water-stage recorder, lat. 38°46', long. 120 0 42', in Sw£ sec. 25, T. 11 N., R.

 Hi!., 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 1950.

Average discharge. 28 years, 886 second-feet, combined flow of South Fork American River 

near uanu.no and American River flume.

Extremes. Maximum discharge during year, 6,080 second-feet May 29 (gage height, 11.62 

reet); minimum, 4.6 second-feet Jan. 3, 4.

1922-50: 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. Flow partly

 regulated by four reservoirs since beginning of record (total usable capacity, 35,500 t 

acre-feet). Two diversions above station; American River flume (see p. 392) and 

El Dorado Canal (see p. 387). /

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

 in connection with a Federal Power Commission project. 

Revisions (water years). W 931: 1928, 1938, 1940(M).

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in seeond-feet)

0.5, 4.8 1.8 72 4.5 632 

.6 7.0 2.2 109 5.0 828 

.7 10 2.6 156 6.0 1,30O 

 .9 17 3.0 222 7.2 2,020 

1.2 31 3.5 334 9.O 3,38O 

1.5 50 4.0 466 10.6 4,910

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

S 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

IB 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14 

15 

12 

12 

12

12 

12 

20 

29 

24

30 

28 

19 

17 

16

15 

13 

13 

13 

11

10 

9.7 

8.2 

7.6 

9.7

14 

11 

11 

11 

11 

11

Nov.

10 

10 

10 

10

11 

11

10 

22 

176 

445

104 

17 

10 

8.8 

7.6

6.1 

7.0 

8.2 

8.5 

8.5

9.5 

10 

8.9 

9.8 

10

17 

18 

12 

15 

16

Dec.

11 

9.7 

9.1 

7.3 

6.3

7.3 

6.3 

6.3 

6.3 

6.3

6.3 

6.1 

6.1 

8.8 

27

15 

26 

18 

59 

12

7.0 

27 

29 

15 

10

8.5 

9.4 

8.5 

9.4 

8.8 

7.3

Jan.

7.0 

7.3 

6.3 5.7' 

7.3

8.8 

20 

33 

23 

27

22 

19 

22 

27 

36

121 

1,240 

1,690 

1,170 

849

807 

3,580 

3,880 

2,52O 

1,250

841 

738 

915 

672 

488 

455

Feb.

332 

288 

320 

1,540 

2,310

3,320 

2,010 

1,340 

1,050 

938

1,010 

841 

730 

734 

742

790 

782 

750 

794 

824

828 

794 

820 

824 

870

992 

1,120 

1,080

Month

Goto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Va

mber. ............ .-......--.--...-

lendar year 1949 

ary

h. ......................................

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

ter year 1949-50 .......................

Mar.

1,040 

974 

956 

1,040 

1,300

1,240 

1,050 

956 

870 

786

794 

672 

794 

828 

790

786 

1,030 

1,200 

2,090 

2,920

2,050 

2,210 

2,030 

2,080 

1,880

1,640 

1,470 

1,450 

1,410 

1,510 

1,710

Apr.

1, 

2, 

2, 

2, 

2,

2, 

3, 

2, 

2, 

2,

1, 

2, 

2, 

2, 

2,

2, 

2, 

3, 

3, 

4,

4, 

4, 

3, 

3, 

3,

4, 

4, 

4, 

3, 

3,

Secondfoot -days

451.2 

1,026.9 

40O.1

214,972.0

21,487.4 

28,773 

41,556 

91,030 

1O9.9OO 

65,630 

10,811 

557.4 

564.1

372,187.1

Peak discharge (base, 4,100 sec. -ft.). Jan. 23 (5:30

82O 

1OO 

310 

380 

640

8OO 

090 

820 

370 

O80

970 

O3O 

48O 

220 

1OO

4OO 

910 

120 

520 

O60

520 

530 

920 

840 

9OO

180 

3OO 

030 

3OO 

290

May

3,6OO 

2,900 

2,390 

2,O80 

2,O1O

2,O20 

1,860 

1,720 

1,700 

1,880

2,240 

2,810 

3,290 

3,750 

4,310

4,440 

4,500 

4,250 

4,O10 

4,2OO

4,350 

4,550 

4,520 

4,590 

4,480

4,500 

4,600 

4,400 

4,4OO 

4,690 

4,860

Maximum

30 

445 

59

5,460

3,880 

3,320 

2,920 

4,530 

4,860 

4,590 

1,280 

55 

136

4,860

June

4,590 

4,320 

3,750 

3,360 

3,390

3,340 

2,350 

1,820 

1,780 

1,790

2,030 

1,800 

1,630 

1,760 

1,840

2,OOO 

1,980 

1,910 

2,160 

2,420

2,460 

2,220 

1,940 

1,570 

1,340

1,220 

1,140 

1,130 

1,240 

1,350

July

1,280 

1,100 

1,010 

884 

790

484 

618 

499 

441 

441

379 

320 

323 

285 

2S3

222 

232 

187 

164 

135

113 

101 

84 

70 

64

62 

57 

50 

47 

45 

41

Aug.

40 

31 

30 

55 

36

28 

11 

26 

23 

20

25 

22 

J.6 

12 

18

13 

14 

12 

11 

11

8.2 

9.1 

10 

9.4 

9.1

10 

10 

9.7 

9.1 

9.4 

9.4

Sept.

10 

11 

17 

136 

14

10 

9.4 

10 

24 

22

11 

29 

27 

15 

12

11 

10 

10 

26 

19

16 

12 

11 

14 

22

11 

9.7 

11 

10 

14

K1 Hean J«M

7.6 14.6 895 

6.1 34.2 2,040 

6.1 12.9 794

5.7 589 426,400

5.7 693 42,620 

288 1,028 57,070 

672 1,341 82,430 

1,820 3,034 180,600 

1,700 3,545 218,000 

1,130 2,188 130,200 

41 349 21,440 

8.2 18.0 1,110 

9.4 18.8 1,120

5.7 1,020 738,300

p.m.) 5,320 sec. -ft. j Apr. 22 (3:30 a.m.)

5,270 sec.-ft.) May 29 (12 p.m.) 6,080 sec.-ft.
AMERICAN RIVER BASIN 383

Echo Lake conduit near Vade, Calif.

Location. Water-stage recorder, lat. 38°50', long. 120°02', in Nw£ sec. 6, T. 11 N., 

K. IB E., 0.5 mile downstream from intake and 2 miles northeast of Vade post office. 

Altitude of gage, about 7,500 feet (from topographic map).

Records available. August 1923 to December 1950.

Extremes. Maximum daily discharge during season, 25 second-feet Sept. 6,7, 18-20; no 

tiow during most of year.

1923-50: Maximum daily discharge, 27 second-feet Sept. 13-15, 19, 1938, Sept. 9-12, 

1947; no flow during most of each year.

Remarks. No flow except during periods for which discharge is published. Conduit diverts 

TFoln Echo Lake in Truckee River Basin into basin of South Pork American River for power 

and irrigation.

Cooperation. Records of daily discharge, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, in second-feet, September to December 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Sept.

0

0

0

0

8.3

25

25

21

21

21

21

21

21

21

23

24 

24

25

25

25

24

24

24

24

24

24

24

24

8.1

8.1

-

Month

September . .1. ............................... 

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

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

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

Oct.

8.1

8.1

.8.0

8.0

8.0

6.0

6.0

6.0

5.0

5.0

5.0

5.0

5.Q

2.5

0

0 

0

0

0

0

0

0

O

0

0

O

0

0

0

0

O

Nov.

0

0

0

0

0

0

0

O

0

0

0

0

5

10

15

Dec.

f 10

5

0

0

0

0

o

0

0

o

0

0

0 

0

0

o

0

o

0

0

0

0

0

0

0

o

o

-

Second- MMI M foot-days " ** « 

-'" "'559.5 ' ' W"- 1 

S5.7 8.1 '

240

45

-

Minimum

0

0

0

-

Mean

18.6

Z tfi . ( O

8 *00

1.45

_

Runoff in 

aore-feet

1,110 

170

476

89

1,340

Note. No recorder record thia season; discharge computed on basis of occasional gage readings.
384 AMERICAN RIVER BASIN

Medley Lakes Outlet near Vade, Calif.

Location. Water-stage recorder, lat. 38°51', long. 120°08«, in NWtr sec. 32, T. 12 N., R.

 T7~~E7, 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.--4.2 square miles.

Kecords available. September 1922 to September 1950.

Average discharge.--28 years, 17.0 second-feet.

extremes. Maximum discharge during year, 178 second-feet May 30 (gage height, 3.20 feet); 

minimum, 0.8 second-foot Nov. 7.

1922-50: Maximum discharge, 202 second-feet June 15, 16, 1929 (gage height, 3.42 

feet); no flow at times in some years.

Remarks. Records good above 20 second-feet, poor below. Contents in Medley Lakes, above

 sWElon, 120 acre-feet Sept. 30, 1949, and 200 acre-feet Sept. 30, 1950.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project. 

Revisions.--W 1151: Drainage area.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

0.3 0.6 0.8 6.3 1.6 40 

.4 1.1 .9 8.8 1.8 53 

.5 1.8 1.0 12 2.0 67 

.6 2.8 1.2 19 2.3 91 

.7 4.3 1.4 29 2.6 118

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.0 

3.0 

2.9 

2.9 

3.0

3.0 

3.6 

3.3 

3.2 

3.6

3.2 

2.9 

2.8

2.7 

2.6

2.5 

2.3 

2.2 

2.2 

2.2

2.1 

2.1 

2.0

1.8 

1.7

1.6 

1.6 

1.6 

1.5 

1.4 

1.4

Nov.

1.3 

1.2 

1.2 

1.0 

.9

.9 

.9 

1.1 

2.0 

5.2

2.5 

1.7 

1.6 

1.5 

1.5

1.4 

1.4 

1.4 

1.4 

1.5

1.4 

1.4 

1.5 

1.6 

1.7

2.0 

1.9 

2.4 

2.5 

2.2

Dec.

1.9

1.6 

1.6 

1.5 

1.4

1.5 

1.5 

1.6 

1.7 

1.8

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.8 

1.9 

1.9 

1.9

1.9 

1.9 

1.9

, 1.9

Jan.

. 1.7

Feb.

2

Month

Octo 

Nove 

Dece

Ca

Janu: 

Febn 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

Eti*y

h. ......................................

ter year 1949-50 ...............

Mar.

4

Apr.

9

Secondfoot -days

75.9 

50.2 

55.9

4,584.2

52.7 

56 

124 

270 

841.7 

2,602 

1,341 

1,352 

1,007.8

7,829.2

May

7

5.9

6.8

8 

9

10 

11 

13

15 

16 

15 

14 

15

17 

18 

18 

18 

24

49 

86 

94 

99 

116 

108

Maximum

3.6 

5.2

92

116 

118 

88 

47 

42

118

June

103 

97 

93 

87 

104

118 

93 

78 

81 

82

79 

77 

77 

79 

91

82 

83 

81 

85 

89

87 

84 

85 

83 

84

84 

83 

83 

83 

87

July

88 

87 

87 

88 

86

86 

61 

36 

37 

33

14 

21 

33 

42 

43

44 

38 

34 

29 

26

24 

22 

22 

21 

22

22 

28 

35 

46 

43 

43

Aug.

42 

42 

42 

41 

41

41 

41 

41 

41 

46

46 

47 

47 

46 

46

46 

46 

45 

45 

44

43 

43 

43 

43 

43

43 

43 

44 

44 

' 44 

43

Sept.

42 

42 

42 

42 

41

41 

41 

41 

40 

40

41 

41 

40 

39 

39

39

39 

39 

39 

38

37 

36 

36 

35 

32

9.2 

4.7 

4.1 

3.9 

3.9

Minimum Mean «££*

1.4 2.45 151 

.9 1.67 100 

1.80 111

12.6 9,100

1.7 105 

2 111 

4 246 

9 536 ' 

27.2 1,670 

77 86.7 5,160 

14 43.3 2,660 

41 43.6 2,680 

3.9 33.6 2,000

21.4 15,530

Note. No gage-height record Dec. 24 to May 8, May 11-14; discharge computed on baala of weather 

records.
AMERICAN RIVER BASIN 385

Silver Lake Outlet near Kirkwood, Calif.

Location.--Water-stage recorder, lat. 38°40 1 , long. 120°08', In Sw£ sec. 32, T. 10 N., R.

17 K., 1,000 feet downstream from Sliver 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 1950. 

Average ai3cnarge'.--28 years, 32.3 second-feet. 

Extremes.--Maximum discharge during year, 303 second-feet June 2 (gage height, 3.79 feet);

minimum, 0.1 second-foot on several days in January, but may have been less during period

of ice effect.

1922-50: Maximum discharge, 504 second-feet Dec. 11, 1937 (gage height, 5.10 feet),

from rating curve extended above 190 second-feet; no flow for many days in February and

March 1948. 

Remarks. Records good except those for periods of ice effect and no gage-height record,

which are poor. Contents in Silver Lake, about 2,470 acre-feet Sept. 30, 1949, and

about 3,160 acre-feet on Sept. 30, 1950. In addition to water released through dam and

over spillway some escapes from Silver Lake through porous rock formation. 

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project.

Rating table, water year 1949-50, except period of Ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-22)

0.4 

.5 

.6 

.7

0

.2 

1.0 

2.5 

5.0

0.9 

1.0 

1.2 

1.6 

2.0

9.0

14

26

57

93

2.6 151

3.3 234

3.8 304

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

49 

48 

43 

41 

39

37 

36 

34 

33 

32

31 

30 

30 

28 

26

25 

25 

22 

21 

19

18 

16 

13 

11 

9.9

8.6 

7.7 

6.8 

6 

5 

4.4

Nov.

4.1 

4.1 

3.8 

3.6

3.1

2.9 

2.5 

2.5 

3.6 

6.0

5.3 

4.7 

4.4 

4.1 

3.8

3.6 

3.3 

3.1 

3.1 

2.9

2.7 

2.5 

2.3 

2.1 

2.1

2.1 

2.3 

2.3 

2.3 

2.3

Dec.

2.3 

2.3 

2.1 

2.0 

2.0

.6 

.4 

.2

.1 

.0

bl.O 

bl.O 

1.0 

.8 

.8

.8

).., 

}..,

b.2

Jan.

I bO.2

> "

.1

.1 

.1 

.1 

.1

'\

.1 

.1 

.2 

.1

.1

.2 

.4 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Feb.

0.4 

.5 

.5 

.4 

.4

.4 

.4 

.5 

.6 

.5

.5 

.7 

.8 

.7 

.7

.9 

1.0 

1.2 

1.4 

1.5

. al.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Ma v

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 194S

ter year 1949-50 ...............

Mar.

a5 

a!5

a25

Apr.

25 

25 

26 

27 

28

30 

30 

30 

30 

30

30 

'30 30

30 

30

31 

32 

32

17 

7.2

8.1 

9.4 

37 

122 

150

175 

184 

177 

152 

150

Secondfoot-days

755.4 

97.5 

26.6

10,222.2

5.0 

26.0 

475 

1,714.7 

4,942 

3,266.9 

228.8 

42.3 

1,509.3

13,089.5

May

159 

129 

101 

77 

62

55 

50 

44 

41 

46

62 

98 

144 

196 

247

269 

272 

261 

255 

156

65 

79 

124 

177 

210

227 

247 

259 

265 

276 

289

Maximum

49 

6.0

256

184 

289 

297 

74 

3.1 

70

297

June

296 

297 

287 

270 

244

216 

158 

63 

11 

11

18 

20 

11 

16 

37

76 

111 

117 

146 

166

185 

136 

88 

72 

48

20 

5.3 

8.6 

30 

103

July

74 

36 

25 

14 

7.7

3.1 

3.1 

2.7 

2.9 

3.1

3.6 

3.6 

2.9 

2.5 

2,5

2.5 

2.5 

2.3 

2.3 

2.3

2.3 

2.3 

2.3 

2.1 

2.1

2.5 

3.6 

3.3 

3.3 

3.3 

. 3.1

Minimum

4.4

2.1

-

7.2 

41 

5.3 

2.1 

1.0 

.8

-

Aug.

3.1 

3.1 

2.5 

1.4 

1.4

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.4

1.4 

1.4 

1.4

1.2 

1.2 

1.2 

1.1 

1.4

1.2 

1.1 

1.1 

1.1 

. 1-1

1.1 

1.1 

1.1 

1.0 

1.0 

1.0

Mean

24.4 

3.25 

.86

28.0

.16 

.93 

15.3 

57.2 

159 

109 

7.38 

1.36 

50.3

35.9

Sept.

1.0 

1.0 

.9 

.8 

.8

.8 

40 

64 

62 

63

63 

63 

63 

62 

65

68 

67 

68 

65 

64

68 

70 

69 

66 

42

55 

56 

62 

70 

69

Runoff in 

acre-feet

1,500 

193 

53

20,260

9.9 

52 

942 

3,400 

9,800 

6,480 

454 

84 

2,990

25,960

a No gage-height record; discharge computed on basis of record of gate operations,weather records, 

storage records, and records of Twin Lakes Outlet near Kirkwood. 

b Stage-discharge relation affected by Ice.
386 AMERICAN RIVER BASIN

Twin Lakes Outlet near Kirkwood, Calif.

Location. Water-stage recorder and concrete control, lat. 38°42', long. 120°03', in SW£ 

sec. 18, T. 10 N., R. 18 E., 500 feet downstream from main dam and outlet gate of Twin 

Lakes and 1 mile east of Kirkwood. Altitude of gage, about 7,900 feet (from topographic 

map).

Drainage area. 12.4 square miles.

Records available.--September 1922 to September 1950 (October 1934 to September 1950, 

except nay ana June 1945, include flow over Twin Lakes spillway).

Average discharge. 27 years (1922-44, 1945-50), 33.2 second-feet (including flow over 

Twin Lakes spillway).

Extremes. Maximum combined daily discharge during year for outlet and spillway, 241 

second-feet June 20; minimum daily, 2.6 second-feet Apr. 5, 28.

1922-50: Maximum combined daily discharge for outlet and spillway, 310 second-feet 

June l, 1943 (possibly exceeded in May 1945); minimum daily 0.1 second-foot Mar. 25-31, 

1944.

Remarks. Records excellent except those for June 5 to July 12, which are fair. No diversTon. Flow regulated by Twin Lakes, contents of which was 16,700 acre-feet Sept. 30, 

1949, and 16,800 acre-feet Sept. 30, 1950. Flow over Twin Lakes spillway occurred June 

5 to July 12, and is included in table below.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

22 

30 

30 

30

33

39 

46 

48 

49 

49

49 

49 

49 

49 

49

49 

49 

49 

49 

49

49 

62 

73 

81 

81

85 

89 

90 

90 

90 

90

Nov.

94 

102 

103 

103 

102

102 

102 

103 

89 

41

12 

10 

11 

14 

25

36 

35 

35 

35 

35

35 

35 

35 

35 

35

35 

35 

35 

31 

30

Dec.

36 

21 

11 

11 

11

11 

11 

11 

11 

18

51 

64 

79 

74 

60

50

26 

26 

36 

71

78 

65 

55 

48 

48

49 

49 

49 

48 

48 

48

Jan.

49 

49 

66 

75 

72

72 

72 

72 

73 

73

73 

72 

72 

72 

72

66 

34 

15 

15 

15

16 

16 

16 

16 

16

16 

16 

16 

15 

15 

15

Feb.

18 

33 

31 

31 

20

15 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

12 

3.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 194E

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

ter year 1949-50 .......................

Mar.

3.0 

3.0 

3.0 

3 0 

3.0

3.2 

3.8 

5.0 

7.7 

8.1

7.7 

7.7 

8.1 

8.1 

4.4

3.8 

3.0 

3.0 

3.2 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0 

3.0

Apr.

3.0 

3.0 

3.2 

3.0 

2.6

3.0 

3.0 

2.8 

2.8 

2.8

2.8 

3.0 

3.0 

3.0 

3.2

3.0 

3.0 

3.2 

3.3 

3.2

3.5

3.2 

3.2 

3.0 

3.2

3.0 

3.0 

2.6 

3.0 

3.2

Secondfoot-clays

1,746 

1,530 

1,274

12,932.8

1,352 

463.2 

126.8 

90.7 

381.9 

4,350 

1,410 

1,659 

645.2

15,028.8

May

3.2 

3.0 

3.0 

3.0 

3.0

3.2 

3.2 

3.8 

3.5 

3.8

4.7 

4.7 

5.0 

5.3 

4.7

3.5

3.5 

3.8 

4.1 

4.1

4.7 

4.1 

3.5 

3.0 

3.2

3.5

3.8 

46 

78 

78 

78

Maximum

90 

103 

79

169

75 

33 

8.1 

3.5 

78 

241 

162 

78 

84

241

June

79 

76 

75 

75 

78

168 

169 

122 

68 

117

161 

161 

119 

154 

211

229 

a230

3231 

233 

241

212 

186 

159 

al33 

al02

60 

54 

91 

165 

191

July

a!62 

a!37 

120 

alls 

96

73 

73 

a58 

as3 

51

51 

43 

40 

40 

40

40 

40 

17

11 

11

11 

11 

11 

11 

11

11 

11 

11 

. 11 

17 

23

Minimum

22 

10 

11

1.6

15 

3.2 

2.8 

2.6 

3.0 

54 

11 

31 

3.0

2.6

Aug.

31 

32 

32 

32 

35

38 

43 

43 

43 

43

46 

46 

46 

48 

49

54 

56 

56 

56 

59

64 

64 

67 

69 

69

69 

69 

73 

74 

75 

78

Mean

56.3 

51.0 

41.1

35.4

43.6 

16.5 

4.09 

3.02 

12.3 

145 

45.5 

53.5 

21.5

41.2

Sept.

81 

84 

84 

84 

72

59 

24 

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 

3.2

3.5 

3.5

43 

31 

22

Runoff In 

acre-feet

3,460 

3,030 

2,530

25,650

2,680 

919 

252 

180 

757 

8,630 

2,800 

3,290 

1,280

29,810

a No gage-height record for spillway; discharge computed on basis of records for Silver Lake Outlet.
AMERICAN RIVER BASIN 

El Dorado Canal near Kyburz, Calif.

387

Location.--Water-stage recorder, lat. 38°46', long. 120°19', in SE^ sec. 29, T. 11 N., R. 

ib 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 1950. 

Averse discharge.--28 years, 103 second-feet.

Extremes. Maximum daily discharge during year, 169 second-feet June 27-29; no flow 

Oct. 25 to Nov. 11.

1922-50: Maximum daily discharge, that of June 27-29, 1950; no flow at times.

Remarks. Records good except those for periods of ice effect or indefinite stage-discharge 

relation, which are fair. Canal diverts from left bank of Sputh Fork American River 

just below Silver Pork 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 Commission project.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

106 

108 

111. 

108 

106

111 

119 

120 

119 

125

123 

116 

111 

108 

107

103 

98 

96 

96 

93

91 

87 

101 

29 

O

0 

0 

0 

0 

0 

0

Nov.

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

28 

45 

44 

45

60 

66 

66 

67 

66

64 

63 

63 

65 

72

73 

66 

70 

7£ 

58

Dec.

58 

57 

e36 

e27 

e27

e25 

e25 

e25 

e24 

e20

e36 

74 

97 

»103 

82

75 

58 

45 

49 

62

112 

94 

78 

67 

78

72 

71 

67 

72 

74 

78

Jan.

74 

70 

85 

b!03 

b90

b95 

b96 

blOO 

blOO 

105

105 

b!06 

b!06 

blOO 

b99

b98 

b!04 

bl!3 

bl!2 

bl!3

116 

120 

120 

131 

bl!7

b!09 

b!30 

b!30 

b!30 

134 

131

Feb.

b!31 

bl!6 

b!20 

129 

129

128 

122 

123 

130 

137

137 

137 

142 

143 

144

143 

143 

143 

144 

145

144 

145 

144 

144 

144

145 144 ,' 

»145

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

tfa

lendar year 194S 

ai*y

ter year 1949-50 .......................

Mar.

145 

145 

145 

146 

143

143 

148 

148 

148 

148

148 

150 

ISO 

150 

150

151 

151 

150 

149 

149

150 

151 

150 

150 

149

148 

148 

148 

148 

149 

149

Apr.

146 

145 

144 

144 

144

143 

140 

138 

138 

138

139 

139 

139 

138 

138

140 

140 

140 

140 

143

148 

148 

148 

149 

149

149 

149 

148 

146 

146

Secondfoot-clays

2,492 

1,153 

1,868

37,291

3,342 

3,841 

4,597 

4,296 

4,757 

4,945 

4,843 

4,499 

4,324

44,957

May

147 

147 

147 

147 

151

152 

151 

152 

152 

153

154 

154 

154 

157 

158

156 

155 

154 

155 

155

155 

155 

156 

156 

155

154 

154 

153 

155 

155 

158

Maximum

125 

73

112

163

134 

145 

151 

149 

158 

16? 

167 

155 

156

169

June

161 

161 

161 

159 

160

161 

161 

163 

164 

165

166 

164 

164 

166 

166

166 

166 

166 

167 

167

167 

166 

166 

165 

166

167 

169 

169 

169 

167

July

167 

165 

165 

165 

166

166 

166 

165 

165 

166

164 

161 

160 

160 

16O

16O 

161 

161 

160 

160

158 

152 

148

140 

144

144 

137 

136 

140 

139 

142

Minimum

0 

0 

20

0

70 

116 

143 

138 

147 

159 

136 

140 

99

0

Aug.

142

147 

149 

144 

140

140 

143 

143 

141 

143

145 

148 

1^5 

148 

144

145 

146 

145 

142

141

145 

145 

145 

149 

149

148 

146 

144 

146 

146 

145

Mean

80.4 

38.4 

60.3

102

108 

137 

148 

143 

153 

165 

156 

145 

144

123

Sept.

149 

153 

152 

152 

150

139 

151 

156 

155 

155

156 

156 

155 

152 

147

151 

154 

156 

155 

151

149 

149 

148

147 

113

100 

99 

113 

140 

121

Runoff In 

acre-feet

4,940 

2,290 

3,710

73,970

6,630 

7,62O 

9,120 

8,520 

9,440 

9,810 

9,610 

8,920 

8,580

89,190

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

e Stage-discharge relation ^ndefjlnlte; discharge computed on basis of gage-height record and flow 

through head gates computed from once-daily gage readings.
388 AMERICAN RIVER BASIN

Alder Creek near Whitehall, Calif.

Location. Water-stage recorder, lat. 38 0 45', long. 120°22', in SW^ sec. 36, T. 11 N., R. 

14 K., 0.8 mile upstream from mouth and 2 miles southeast of Whitehall. Altitude of 

gage, about 4,000 feet (from topographic map). 

Drainage area.--22.8 square miles.

Records available.--October 1922 to September 1950 (include diversions by pipe line). 

Average discharge'. 28 years, 34.1 second-feet.

Extremes.--Maximum discharge during year, 358 second-feet Apr. 21 (gage height, 3.05 feet); 

'. no now Dec. 11 to Jan. 15. «.

1922-50: 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 at 

times during several years.

Extremes do not include flow in feeder pipe line.

Remarks.--Records good except those for Oct. 1 to Jan. 18, which are poor. Records (except 

extremes) include computed flow in feeder pipe line that diverted just above station 

into El Dorado Canal Oct. 2 to June 14. 

Cooperation.--Water-stage 'recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project. 

Revisions (water years).--W 861: 1928(M).

Rating table, water year 1949-50, except period of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 1-17)

1.0 0.3 1.5 17 2.2 115 

1.1 .8 1.6 25 2.4 161 

1.2 2.4 1.7 35 2.7 244 

1.3 5.7 1.8 47 3.0 34O 

1.4 10 2.O 77

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14 

15

16 

17 

IB 

19 

2O

21 

22 

23 

24 

25

26 

27 

2B 

29 

30 

31

Oct.

0.5 

.9

1.1 

1.1

1.2

1.3 

1.5 

1.7 

2.0 

1.7

1.1 

1.0 

.9 

.8 

.8

.7 

.7 

.7 

.7 

.8

.9 

.9 

.9 

.9

.6

.6 

.5 

.6 

.6 

.6 

.6

Nov.

0.6 

.6 

.6 

.7 

.7

.7 

.8 

1.5 

5.3 

10

6.0 

4.1 

3.5 

2.6

1.7

1.5 

1.4 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

Dec.

1.3 

1.3 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.1 

1.1 

1.1

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1 

1.1

Jan.

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

b6.1 

b41 

blOl 

62 

34

35 

132 

141 

116 

70

50 

44 

37 

39 

22 

23

Feb.

22 

26 

26 

154 

186

186 

142 

106 

93 

86

88 

91 

70 

53 

55

58 

55 

57 

61 

61

61 

62 

64 

64 

71

82 

82 

*82

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949 

ary

h. ......................................

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

St......................................

ter year 1949-5O .......................

Mar.

81 

79 

79 

82 

97

89 

82 

78 

74 

71

73 

73 

61 

52 

49

49

67 

74 

167 

186

158 

189 

171 

151 

124

106 

97 

93 

93 

102 

112

Apr.

126 

144 

156 

171 

186

242 

234 

197 

168 

146

140 

144 

161 

156 

161

186 

208 

238 

270 

314

338 

321 

288 

266 

258

258 

254 

232 

202 

190

Seeondfoot-days

28.9 

59.2 

35.3

9,902.5

969.6 

2,244 

3,059 

6,355 

4,640 

1,079 

153.3 

43.8 

21.4

18,694.5

Peak discharge fbase, 120 sec. -ft. J. Jan. 23 (6 p.m.)

May

192 

168 

144 

131 

126

126 

118 

112 

110 

112

116 

131 

156 

171 

191

205 

202 

191 

178 

176

176 

176 

171 

166 

158

144 

135 

122 

116 

112 

108

Maximum

2.0 

10 

1.3

239

141 

186 

189 

338 

205 

100 

9.0 

2.2 

.8

338

June

100 

89 

79 

71 

62

57 

54 

52 

44 

40

37 

36 

35 

31 

28

26 

25 

23 

22 

21

19 

19 

18 

16 

14

14 

13 

12 

12 

10

July

9.0 

9.0 

8.5 

8.5 

8.0

7.5 

7.5 

7.0 

6.5 

6.5

6 

5.7 

5.3 

4.9 

4.5

4.5 

4.1 

4.1 

4.1 

4.1

3.8 

3.8 

3.5 

3.5 

3.5

3.2 

2.9 

2.6 

2.6 

2.4 

2.2

Aug.

2.2 

2.2 

2.2 

2.2 

2.0

2.0 

2.0 

2.0 

1.8 

1.8

1.8 

1.8 

1.6 

1.6 

1.4

1.4 

1.2 

1.2 

1.1 

1.1

1.0 

1.0 

1.0 

.8 

.8

.8 

.8 

.8 

.8 

.7 

.7

Sept.

0.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.7

.7 

.7 

.7 

.7 

.T

.7 

.7 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

Minimum Mean *£«£

0.5 .93 57 

.6 1.97 117 

1.1 1.14 70

.5 27.1 19,650

1.1 31.3 1,920 

22 80.1 4,450 

49 98.7 6,070 

126 212 12,600 

108 150 9,200 

10 36.0 2,140 

2.2 5.14 316 

.7 1.41 87 

.6 .71 42

.5 51.2 37,070

227 sec. -ft. j Feb. 6 (^a.m. ) 274 Bee. -ft.}

ij. p.m.; zio sec.-ri;.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
AMERICAN RIVER BASIN 389

Silver Creek at Union Valley, Calif.

Location. Water-stage recorder, lat. 38°52', long. 120°26 t , in SE£ sec. 20, T. 12 N., R. 

11 K., I mile downstream from confluence of North and Middle Porks, 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 1950.

Average discharge. 25 years (1924-27, 1928-50), 200 second^feet.

Extremes. Maximum discharge during year not determined; minimum, 5.1 second-feet Oct. 4,

1924-50: 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 good except those for period of no gage-height record, which are poor, 

wo storage or diversion above station.

Revisions (water years). W861: 1928(M).

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.8 

5.8 

5.4 

5.4 

5.4

5.4 

'7.7 

7.4 

6.4 

7.4

8.1 

7.7 

7.1 

6.4 

6.4

6.1 

6.1 

6.1 

7.1 

7.4

7.7 

7.7 

7.7 

7.4 

9.3

11 

11 

11 

10 

10 

9.7

Nov.

9.7 

9.7 

9.7 

10 

10

10 

11 

22 

59 

66

31 

25 

Z4 

Z4 

Z3

Z3 

22 

23 

27 

28

28 

28 

28 

30 

38

38 

33 

41 

39 

34

Dec.

32 

27 

23 

Z2 

ZZ

20 

ZO 

19 

18 

15

13 

15 

14 

16 

16

17 

18 

19 

18 

20

Z2 

24 

23 

22

Zl

22 

Z2 

25 

26 

Z5 

25

Jan.

25 

25 

25 

25 

24

24 

24 

25 

27 

25

27 

31 

33 

33 

34

42 

220 

68Z 

564 

471

405 

1,000 

1,100 

700 

400

300 

250 

200 

ZOO 

150 

130

Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Hfiv

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary

3...... ...............

h. ......................................

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

ter year 1949-50 .......................

Mar. Apr.

Secondfoot -days

233.1 

804.1 

641

58,600.2

7,221

300.8 

192.9

-

May

Maximum

11 

66 

32

1,800

1,100'

15 

8.4

-

June

Minimum

July

21 

21 

20 

19 

17

* 5.4

9.7 

13

4.9

24

6.4 

5.6

5.4

Aug.

15 

15 

14 

14

13

13 

13 

12 

12

11

10 

10 

9.7 

9.3 

9.3

8.9 

8.4 

8.4 

8.0 

8.0

7.6 

7.6 

7.6 

7.6 

7.6

7.6 

7.2 

6.8 

6.4 

6.4 

6.4

Mean.

7.52 

26.8 

20.7

161

233 

218 

286 

770 

940 

469 

68.3 

9.70 

6.43

254

Sept.

6.1 

6.1 

5.9 

5.9 

5.6

5.9 

6.1 

6.4 

6.4 

6.4

6.8 

7.6 

7.2 

6.4 

6.1

6.1 

6.1 

8.4 

8.4 

8.4

7.2 

6.4 

6.4 

6.1 

5.9

5.9 

5.9 

5.6 

5.6 

5.6

Runoff In 

acre -feet

462 

1,590 

1,270

116,200

14,320 

12,100 

17,600 

45,800 

57,800 

27,900 

4,200 

597 

383

184,000

Note. No gage-height record Jan. Z2 to July 26; monthly discharge for February1 to July and dally 

discharge Jan. 22-31 computed on basis of records for station near Placervllle.

207481 O - 52 - 26
390 AMERICAN RIVER BASIN 

Silver Creek near Placerville, Calif.

Location. Water-stage recorder, lat. 38°47', long. 120°35', in SW£ sec. 13, T. 11 N., R. 

I'd 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 1950.

Average discharge.--28 years (1922-50), 388 second-feet.

Extremes.--Maximum discharge during year, 3,680 second-feet Jan. 22 (gage height, 7.80 

reet); minimum, 20 second-feet Dec. 11.

1921-50: Maximum discharge, 14,600 second-feet Dec. 11, 1937 (gage height, 13.8 

feet), from rating curve extended above 3,800 second-feet on basis of velocity-area 

studies; minimum, 5.5 second-feet Sept. 18, 1934.

Remarks. Records good. No storage or diversion above station.

Revisions (water years) .--W 861: 1928(M).

Rating tables, water year 1949-50 (gage height, In feet, 

and discharge In second-feet)

Oct. 1 to Jan. 22 Jan. 23 to Sept; 30

1.6 22 2.8 186 5.0 1,080 1.7 34 

1.8 57 5.1 262 5.5 1,410 1.9 49 

2.0 56 3.5 380 6.0 1,780 2.2 80 

2.2 79 4.0 562 6.6 2,320 2.5 126 

2.5 125 4.5 792 2.8 186 

Note. Same as precedIrigTable above 2.8 feet.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

25 

25 

24 

24 

24

24 

28 

31 

29 

29

31 

30 

28 

28 

26

26 

26 

26 

27 

28

28 

29 

28 

28 

28

26 

26 

26 

26 

25 

25

Nov.

24 

24 

24 

23 

23

24 

25 

39 

112 

232

87 

62 

53 

51 

50

48 

47 

47 

48 

51

53 

51 

51 

51 

57

67 

67 

62 

69 

67

Dec.

62 

55 

50 

46 

48

46 

48 

42 

42 

38

26 

28 

37 

37 

42

43 

51 

65 

56 

37

42 

47 

52 

50 

45

44

43

43 

44 

45 

44

Jan.

43 

43 

38 

50 

44

47 

46 

46 

45 

49

43 

48 

48 

49 

53

97 

584 

792 

635 

507

514 

2,120 

2,150 

1,380 

728

530 

470 

441 

380 

359 

310

Feb.

270 

244 

257 

626 

978

1,440 

918 

639 

518 

507

534 

470 

431 

417 

417

448 

428 

414 

448 

459

441 

441 

448 

462 

477

534

579 

562

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

aber. ...................................

lendar year 194

ter year 1949-50 .......................

Peak discharge (base, 1,600 sec. -ft.). Ja

ft. 3 Mar. 19 {i:30 p.m.; 2,130 sec. -ft.; Apr

Mar.

554 

542 

538 

558 

704

639 

558 

514 

477 

441

441 

400 

397 

377 

380

374 

514 

542 

1,320 

1,430

1,030 

1,060 

1,030 

889 

792

685 

635 

608 

608 

657 

742

Apr.

1, 

1,

1

1,

1 

1 

1

1

1,

1 

1 

1 

2,

2 

2

1 

1 

1

2 

2

1 

1 

1

Secondfoot-days

834 

1,689 

1,398

109,725

12,669 

14,807 

20,436 

43,210 

50,218 

25,508 

6,075 

1,569 

1,168

179,581

n. 22 (12 m. 

. 22 (1 a.m.

830 

966 

070 

150 

280

390 

460 

230 

070 

942

906 

942 

090 

996 

978

150 

380 

520 

750 

060

270 

200 

930 

840 

900

010 

020 

800 

540 

540

May

1,650 

1,310 

1,070 

954 

954

954 

884 

835 

857 

1,010

1,230 

1,490 

1,680 

1,830 

1,950

2,000 

2,000 

1,880 

1,770 

1,900

2,010 

2,140 

2,040 

1,990 

1,980

1,970 

2,020 

1,840 

1,980 

2,020 

2,020

Maximum

31 

232 

65

2,780

2,150 

1,440 

1,430 

2,270 

2,140 

1,830 

492 

68 

47

2,270

June

1,830 

1,720 

1,470 

1,340 

1,370

1,250 

835 

676 

757 

772

889 

772 

685 

662 

694

732 

713 

716 

803 

936

918 

782 

694 

566 

484

477 

480 

466 

503 

514

July

492 

438 

400 

380 

342

298 

284 

284 

246 

236

236 

203 

200 

186 

175

158 

146 

135 

126 

119

112 

106 

100 

94 

94

88 

86 

80 

80 

78 

73

Aug.

68 

68 

67 

65 

63

62 

60 

58 

58 

56

55 

54 

52 

51 

49

49 

47 

47 

46 

44

43 

42 

42 

42 

42

41 

41 

40 

40 

39 

38

Sept.

38 

38 

37 

36 

35

35 

37 

39 

40 

40

41 

46 

41 

40 

40

39 

40 

41 

47 

44

42 

40 

39 

38 

37

36 

36 

36 

35 

35

Mlnl^ Mean «££«£

24 26.9 1,650 

23 56.3 3,550 

26 45.1 2,770

22 301 217,600

38 409 25,130 

244 529 29,370 

37* 659 40,530 

830 1,440 85,710 

835 1,620 99,610 

466 850 SO, 590 

73 196 12,050 

38 50.6 3,110 

35 38.9 2,320

23 492 356,200

} 3,680 sec. -ft.; Feb. 6 (9 a.m.) 1,740 sec.- 

) 2,650 sec.-ft.; May 16 (12 p.m.) 2,550 sec

ft.; May 29 (10 p.m.) 2,840 sec.-ft.
AMERICAN RIVER BASIN 391

South Fork Silver Creek near Ice House, Calif.

Location. Water-stage recorder, lat. 38°49', long. 120°22', in sw£ sec. 1, T. 11 N., R. 

14 E., 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 1950. July to October 1922 at site 1 mile 

upstream.

Average discharge. 26 years, 71.2 second-feet.

Extremes. Maximum discharge during year not determined; maximum gage height, 4.18 feet 

at)out Jan. 23 (backwater from ice); minimum, 1.3 second-feet Oct. 1-3.

1924-50: Maximum discharge, 2,200 second-feet Dec. 11, 1937 (gage height, 5.80 

feet), from rating curve extended above 540 second-feet on basis of velocity-area studies; minimum, 0.1 second-foot Aug. 21 to Sept. 6, 1931.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

wnich are poor. No storage or diversion above station.

Rating table, water year 1949-50, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

0.3 0.5 1.0 39 2.0 198 

.4 2.5 1.2 56 2.4 306 

.5 6.8 1.4 80 2.8 426 

.6 12 1.6 112 3.2 562 

.8 24 1.8 152 3.4 636

Discharge, In second-feet, water year October 1949 to September 195O

Bay

1 

2

3

4 

5

6

7

a

9 

10

11

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.3 

1.3 

1.3 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.9 

2.2 

2.2

2.2 

2.2 

2.5 

2.2 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

2.8 

3.2 

3.2 

3.2 

3.2 

3.2

Nov.

2.8 

2.8 

2.S 

2.8 

2.8

2.8 

2.5 

3.6 

6.3 

9.8

7.2 

6.8 

7.7 

7.7 

9.S

7.7 

7.7 

7.7 

9.8 

8.7

8.7 

9.8 

9.2 

8.2 

10

14 

15 

14 

17 

17

Dec.

16 13- 

11 

10 

10

8.7 

8.2 

7.7 

7.2 

6.3

b4 

5 

6 

6 

7

7 

8 

10 

9 

7

8 

8 

7 

7 

6

6 

6 

6 

6 

6 

6

Jan.

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

7

10 

43 

58 

47 

38

40 

150 

160 

100 

55

40 

35 

33 

28 

25 

23

Feb.

20 

20 

22 

45 

70

105 

75 

48 

38 

37

36 

36 

35 

35 

35

36 

36 

36 

38 

39

39 

40 

41 

42 

44

46 

50 

48

Month

Octo 

Hove 

Dece

Ca

Janu 

*ebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ma

mber. ...................................

lendar year 194!

ember

ter year 1949-50 .......................

Peak discharge (base, 340 sec. -ft.}. --Jan.

sec.-ftr.j Apr. 27 (3 a.m.) 454 sec. -ft.; Mas

Mar.

47 

46 

47 

50 

55

52 

46 

42 

37 

35

35 

32 

32 

30 

30

30 

40 

40 

100 

105

80 

90 

82 

75 

65

60 

56 

55 

56 

60 

70

Apr.

Secondfoot-days

63.9 

242.7 

239.1

21,340.8

974 

1,197 

1,680 

6,565 

12,037 

8,093 

1,718 

212.6 

114.6

33,136.9

S5 

100 

115 

125 

140

155 

170 

150 

130 

120

115 

125 

140 

130 

130

150 

180 

230 

242 

314

391 

394 

326 

326 

346

382 

400 

370 

292 

292

May

312 

219 

174 

147 

139

137 

125

lie

119 

143

186 

272 

349 

426 

485

499 

495 

482 

475 

509

555 

555 

555 

551 

555

562 

580 

544 

576 

587 

606

Maximum

3.2 

17 

16

678

160 

105 

105 

400 

606 

584 

147 

13 

6.8

606

June

584 

530 

465 

442 

442

379 

253 

206 

227 

250

278 

224 

203 

198 

237

245 

234 

234 

289 

326

309 

256 

216 

170 

143

143 

141 

147 

162 

160

July

147 

131 

123 

114 

100

86 

80 

71 

70 

70

62 

59 

62 

58 

56

47 

42

38 

34 

32

29 

27 

25 

23 

22

22 

21 

19 

18 

16 

14

Aug.

13 

13 

' 12 

IE 

11

10 

9.2 

9.2 

8.7 

8.2

7.7 

7.2 

7.2 

6.8 

6.8

6.3 

, 5.8 

5.8 

5.4 

5.0

4.5 

4.5 

4.5 

' 4.0 

4.0

3.6 

3.6 

3.2 

3.6 

3.6 

3.2

Mlnlnun Mean

1.3 2.06 

2.5 8.09 

4 7.71

1.3 58.5

6 31.4 

20 42.8 

30 54.2 

85 219 

118 388 

141 270 

14 55.4 

3.2 6.86 

2.8 3.82

1.3 90.8

23 (tine and discharge unknown)] Apr. 22 (2 

16 (11 p.m.) 587 sec. -ft. j May 29 $7t30 p.m.

Sept.

3.2 

3.2 

3.2 

2.S 

2.8

2.S 

2.8 

3.6 

3.6 

3.6

3.6 

4.0 

4.0 

4.0 

4.0

3.6 

4.0 

5.4 

6.8 

5.8

4.5 

4.5 

4.0 

3.6 

3.6

3.6 

3.6

3.6 

3.6 

3.2

Runoff In 

acre-feet

127 

481 

474

42,330

1,930 

2,370 

3,330 

13,020 

23,880 

16,050 

3,410 

422 

227

65,720

a.m.) 480 

) 764 sec.-

ft.

b Stage-discharge relation affected by ice.

Note,--No gage-height record Deo. 12 to Feb. 8, Feb. 10 to Apr. 18) discharge computed on basis of 

recorded range In stage, recorded stage on Feb. 9, weather records, and records for'Silver Creek 

near Placervllle.
392 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., R. 

11 E. , 300 feet upstream from Iowa Canyon Creek, 1 mile downstream from diversion dam, 

and 3 miles northwest of Camino. Altitude of gage, about 1,710 feet (from topographic 

map) .

Records available. --November 1922 to September 1950. 

Average discharge. --28 years, 112 second-feet.

Extremes . - -Maximum daily discharge during year, 167 second-feet on many days during June 

and July; no flow Mar. 14 to Apr. 3.

1922-50: Maximum daily discharge, 189 second-feet Aug. 15, 16, 1942, June 28, 1944; 

no flow at times each year.

Remarks . - Records good except those for periods of ice effect, which are fair. Plume diverts from South Fork American River in SWi; sec. 24, T. 11 N. , R. 11 E., for power 

development in SWij sec. 20, T. 11 N., R. 11 E., just above Rock Creek, at which point 

water is returned to South Pork.

operation. --Water-stage recorder graph, furnished by Pacific Gas & 

tained in connection with a Federal Power Commission project.

Electric Co., obDischarge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

149 

149 

147 

152 

152

143 

150 

158 

159 

158

157 

156 

154 

154 

152

144 

118 

126 

130 

130

120 

102 

105 

95 

130

158 

154 

158 

156 

156 

152

Nov.

152 

152 

160 

160 

160

160 

158 

163 

146 

124

162 

158 

140 

126 

116

89 

130 

134 

135 

140

144 

138 

135 

134 

138

151 

152 

145 

150 

151

Dec.

140 

136 

126 

90 

88

102 

86 

96 

86 

89

55 

48 

90 

*149 

166

147 

148 

146 

164 

100

115 

160 

156 

144 

129

118 

140 

132 

141 

135 

129

Jan.

118 

135 

b96 

b81 

blOl

b!24 

145 

150 

153 

154

145 

145 

147 

144 

b!35

155 

151 

154 

158 

160

160 

154 

160 

160 

160

b!43 

161 

161 

161 

162 

162

Feb.

162 

162 

162 

162 ' tee160 

157 

162 

163 

163

163 

163 

163 

160 

161

162 

161 

163 

163 

163

163 

163 

162 

161 

163

163 

*162 

163

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

mber ....................................

lendar year 1949 

ary

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

Bt..................... .................

ter year 1949-50 .......................

Mar.

162 

163 

163 

163 

162

162 

162 

162 

162 

162

162 

162 

49 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

3.2 

37

105 

156 

160 

160 

162

163 

164 

163 

162 

163

163 

163 

162 

162 

162

162 

162 

163 

164 

165

164 

164 

165 

165 

166

Secondfoot -days

4,424 

4,303 

3,751

4|4,147.5

4,495 

4,537 

1,996 

4,050.2 

5,123 

4,993 

5,034 

4,835 

4,542

52,083.2

May

164 

164 

164 

165 

166

166 

166 

166 

165 

164

164 

165 

165 

165 

165

,165 

165 

165 

166 

166

166 

166 

166 

165 

165

165 

166 

166 

166 

166 

165

Maximum

159 

163 

166

178

162 

163 

163 

166 

166 

167 

167 

164 

166

167

June

166 

166 

162 

166 

166

166 

166 

166 

167 

167

167 

167 

167 

166 

167

167 

167 

167 

167 

167

167 

167 

167 

166 

166

166 

166 

167 

167 

167

July

167 

167 

166 

166 

165

161 

166 

166 

166 

166

166 

166 

166 

166 

166

166 

165 

164 

164 

163

162 

160 

156 

154 

155

154 

154 

157 

157 

157 

160

Minimum

95 

89 

48

0

81 

157 

0 

0 

164 

162 

154 

132 

19

0

Aug.

162 

158 

160 

162 

161

160 

141 

160 

158 

158

163 

164 

163 

158 

163

161 

163 

158 

162 

157

132 

147 

160 

149 

145

158 

159 

148 

145 

152 

148

Mean

143 

143 

121

121

145 

162 

64.4 

135 

165 

166 

162 

156 

151

143

Sept.

156 

158 

126 

19 

151

146 

142 

149 

161 

159

152 

163 

163 

160 

156

163 

146 

142 

164 

164

166 

160 

165 

164 

164

148 

150 

162 

157 

166

Runoff In 

acre-feet

8,770 

8,530 

7,440

87,550

8,920 

9,000 

3,960 

8,030 

10,160 

9,900 9,980' 

9,590 

9,010

103,300

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
AMERICAN RIVER BASIN 393

Webber Creek near Salmon Falls, Calif.

Location.--Water-stage recorder, lat. 38°45', long. 121°00', in sec. 32, T. 11 N., R.

y £., I mile' upstream from mouth and 3.5 miles east of Salmon Falls. Altitude of gage, 

about 675 feet {from topographic map).

Drainage area.--100 square miles {by Bureau of Reclamation). 

Records available.--March 1943 to September 1950.

Extremes. Maximum discharge during year, 4,130 second-feet Feb. 4 (gage height, 12.48 

reet); no flow July 31 to Sept. 30.

1943-50: Maximum discharge, 5,390 second-feet Mar. 4, 1949 (gage height, 14.34 

feet), from rating curve extended above 900 second-feet; no flow Aug. 26, 1945,July 16 

to Sept. 26, 1947, July 31 to Sept. 30, 1950.

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 Fork American River enters watershed during irrigation season.

Rating tables, water year 1949-50 (gage height, In feet,

and discharge In second-feet) 

(Shifting-control method used Jan. 17-21)

Oct. 1 to Feb. 3 Feb. 4 to Sept. 30

4.6 0.2 5.6 26 8.0 316 6.2 57 7.5 240 9.0 745 

4.7 .9 5.9 40 8.5 485 6.5 83 8.0 380 10.0 1,290 

4.8 2.2 6.2 57 9.0 720 7.0 143 8.5 545 10.6 1,810 

4.9 3.9 6.5 80 10.0 1,310 ,_ 

5.1 g.g 7.0 135 Note. Same as preceding table below 6.2 

5.3 is' 7^5 210 feet.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.5

Nov.

0.8 

1.2 

1.3 

1.3 

1.3

1.3 

1.6 

1.8 

3.6 

36

25 

13 

8.4 

6.6 

5.7

6.6 

7/4 

7.1 

6.8 

6.8

7.1 

7.4 

7.4 

7.1 

6.6

5.9 

5.4 

5.4 

5.9 

6.6

Dec.

6.4 

5.7 

6.1 

6.1 

6.4

6.8 

7.1 

7.4 

7.6

7.1

6.4 

6.1 

6.1 

6.1 

7.6

9.4 

9.4 

25 

33 

26

16 

13 

 11 

11 

10

9.7 

9.2 

8.9 

9.2 

8.9 

8.6

Jan.

8.4 

8.9 

9.7 

8.1 

6.8

7.6 

7.8 

17 

23 

22

56 

49 

34 

76 

50

214 

1,150 

456 

154 

93

86 

446 

637 

362 

180

118 

101 

440 

243 

155 

118

Feb.

96 

78 

71 

1,810 

1,020

1,450 

526 

296 

201 

173

156 

119 

100 

88 

79

71 

64 

59 

55 

53

50

47 

45 

43 

38

35 

34

33

Month

Octo 

Hove 

Dece

Ca

Janui 

Febn 

Marc 

Aprl

May.

June 

July 

Augu 

Sept

Ha

Lender year 1949 

ipy

fcer year 1949-50 .......................

Mar.

32 

30 

28 

28 

30

31 

29 

29 

28 

28

42 

43 

34 

31 

29

28 

47 

54 

130 

144

86 

88 

77 

653 

458

308 

212 

156 

127 

106 

88

Apr.

76 

68 

62 

56 

53

63 

87 

444 

422 

250

177 

142 

130 

115 

97

86 

78 

70 

63 

56

52 

41 

38 

40 

40

36 

34 

33 

29 

28

Secondfoot-days

15.5 

208.4 

317.3

23,45l".7

5,337.3 

6,890 

3,234 

2,966 

673.0 

133.9 

33.4 

0 

0

19,808.8

Peak discharge (base, 2,400 sec. -ft.) . Feb. 4 (5 p.m.

May

34 

52 

63 

49 

41

37 

36 

32 

30 

28

25 

23 

22 

19 

16

14 

13

14 

13 

13

11 

11 

11 

11 

12

10 

9.7 

7.4 

5.9 

5.2 

4.8

Maximum

36 

33

2,880

1,150 

1,810 

653 

444 

63 

6.4 

2.1 

0 

0

1,810

June

4.3 

4.1 

4.1 

3.9 

3.7

3.9 

 3.9 

4.6 

5.0 

5.0

5.4 

5.9 

6.4 

6.1 

5.4

5.0 

5.0 

5.0 

5.0 

5.0

4.8 

3.9 

3.4 

3.9 

4.6

4.1 

3.7 

3.6 

3.0 

2.2

July

2.1 

2.1 

2.0 

1.9 

1.8

1.8 

1.7 

1.6 

1.6 

1.5

1.4 

1.4 

1.3 

1.2 

1.2

1.1 

1.0 

.9 

.9 

.8

.7 

.7 

.6 

.5 

.4

.4 

.3 

.2 

.2 

.1 

0

Aug. Sept.

Minimum Mean Hunof^ln

0.50 31 

0.8 6.95 413 

5.7 10.2 629

64.3 46,520

6.8 172 10,590 

33 246 13,670 

28 104 6,410 

28 98.9 5,880 

4.8 21.7 1,330 

2.2 4.46 266 

0 l.OS 66 

00 0 

00 0

0 54.3 39,280

) 4,130 sec. -ft.

servations of Sept. 20, 1949, Aug. 1, Sept. 22, Oct. 17, 1950, and recorded data Nov. 1, 1949.
394 COLUSA AND YOLO BASINS

Yolo bypass near Woodland, Calif.

Location. Water-stage recorder on left bank, lat. 38°40 1 40", long. 121°38 l 35n , just upstream from Sacramento and Woodland Railroad bridge,-6 miles upstream from Sacramento 

bypass, 7 miles downstream from Fremont weir, and 7 miles east of Woodland, Yolo County. 

Auxiliary water-stage recorder 6 miles downstream. Zero of both gages is set to datum 

of Corps of Engineers. Second auxiliary gage set to local datum 7 miles downstream.

Records available. October 1940 to September 1950 in reports of Geological Survey. 1939- 

50 in reports of Division of Water Resources, Department of Public Works, State of California.

Average discharge. 10 years, 3,440 second-feet.

Extreme?. Maximum discharge during year, 46,800 second-feet Feb. 7 (gage height, 26.68 

reetj; minimum, 2.9 second-feet Nov. 9.

1940-50: Maximum discharge, 272,000 second-feet Feb.8, 1942 (gage height, 32.00 

feet); minimum, that of Nov. 9, 1949.

Remarks.--Records fair except those for April through July, which are poor. Flow is that 

from Cache Creek and Knights Landing Ridge Cut plus floodwater passing over Fremont 

weir; during summer, flow consists largely of return water from irrigation. Discharge 

for low flows computed on basis of gage-height record for auxiliary gages.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, Stage of California.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

IS 

19 

20

21 

22 

25 

24

25

26 

27 

28 

29 

50 

31

Oct.

39 

34 

31 

29 

27

25 

24 

23 

20 

19

18 

17 

16 

14 

13

13 

13 

13 

11 

9.8

9.4 

9.2 

12 

11 

9.4

8.6 

8.1 

7.9 

8.8 

9.4 

7.9

Nov.

6.8 

6.2 

5.7 

5.2 

4.9

4.4 

4.2 

4.2 

5.0 

5.4

4.8 

4.3 

4.2 

4.2 

4.2

4.8 

5.0 

5.4 

5.5 

5.7

5.4 

5.0 

4.9 

4.9 

4.8

4.4 

4.6 

4.6 

4.2 

4.6

Dec.

4.8 

5.0 

5.5 

5.8 

6.2

6.2 

7.0 

7.3 

7.3 

8.1

7.9 

7.7 

7.9 

8.1 

8.8

9.0 

9.6 

12 

13 

12

10 

9.2 

8.8 

9.8 

9.4

9.2 

9.0 

8.8 

10 

13 

12

Jan.

12 

9.4 

9.2 

8.1 

8.4

8.4 

37 

99 

89 

73

68 

59 

49 

49 

54

50 

60 

66 

85 

158

206 

290 

350 

406 

504

565 

532 

524 

464 

396 

339

Feb.

266 

210 

171 

160 

328

4,360 

39,200 

42,600 

26,300 

11,200

5,340 

3,680 

2,480 

1,670 

1,120

906 

785 

670 

532 

457

378 

338 

307 

276 

241

' 224 

207 

177

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

Mnv

June 

July 

Augu 

Sept

Va

lendar year 194S 

ary

.......................

St......................................

ter year 1949-50 .......................

Mar.

149 

128 

115 

104 

95

90 

83 

80 

79 

76

72 

66 

62 

60 

56

54 

53 

53 

53 

53

54 

68 

82 

99 

115

132 

184 

310 

351 

333 

300

Apr.

271 

246 

220 

187 

175

174 

165 

146 

154 

195

333 

620 

508 

366 

284

237 

164 

108 

81 

65

73 

070 

066 

c58 

59

25 

12 

CIS 

15 

13

Secondfoot-days

510.5 

147.5 

268.4

133,151.7

5,627.5 

144,583 

3,609 

5,108 

1,873 

1,180 

9S1 

1,705 

2,133

167,725.9

Hay

17 

C26 

034 

035 

37

41 

64 

96 

65 

44

47 

34 

34 

38 

37

C36 

035 

042 

59 

108

0144 

c!39 

o!37 

clOO 

090

070 

61 

55 

51 

046 

051

Maximum

39 

6.8 

13

16,000

565 

42,600 

351 

620 

144 

56 

37 

74 

160

42,600

June

052 

C42 

 C42 

043 

C43

045 

47 

41 

41 

46

51 

56 

56 

051 

042

034 

033 

034 

033 

33

33 

33 

32 

31 

31

31 

a31 

a31 

331 

a31

July

h31 

a31 

a31 

a31 

a31

a31 

a30 

a30 

330 

330

329 

329 

a29 

329 

a29

328 

a28 

a28 

28 

31

34 

a34 

334 

335 

335

a35 

a35 

336 

336 

a36 

337

Minimum

7.9 

4.2 

4.8

4.2

8.1 

160. 

53 

12 

17 

31 

28 

37 

24

4.2

Aug.

337 

337 

37 

37 

39

39 

40 

40 

41 

42

44 

48 

52 

55 

55

58 

63 

70 

74 

70

065 

064 

067 

064 

067

068 

068 

C68 

067 

66 

63

Mean

16.5 

4.92 

8.66

365

182 

5,164 

116 

170 

60.4 

39.3 

31.6 

55.0 

71.1

460

Sept.

61 

61 

59 

61 

66

072 

075 

088 

olOO 

0107

0106 

0102 

095 

079 

064

056 

050 

055 

0160 

144

85 

085 

068 

050 

040

035 

32 

28 

25 

24

Runoff In 

acre-feet

1,010 

293 

532

264,100

11,160 

286,800 

7,160 

10,130 

3,720 

2,340 

1,950 

3,380 

4,230

332,700

a No gage-height record; discharge interpolated.

c Affected by tide during a portion of day! discharge computed on basis of flov during nonaffected 

portion of day.

h Computed from staff-gage reading.
COLUSA AND YOLO BASINS 395

Clear Lake at Lakeport, Calif.

Location. Water-stage recorder, lat. 39°03', long. 122°55', in SE& sec. 24, T. 14 N., R.

-lu 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.

Drainage area. 528 square miles, including water surface of lake (65 square miles). 

Records available. 1874-1900 (incomplete) and January 1913 to September 1950.

Extremes. Maximum daily gage height during year, 4.80 feet Apr. 20-25; minimum, 0.18 foot 

 Nov. 1, Sept. 30.

1913-50: 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 

33TT915. Capacity between gage heights 0.00 and 7.56 feet (limits stipulated by court 

decree of 1920), about 319,000 acre-feet. Water is released down natural channel of 

Cache Creek from which it is diverted for irrigation (see Cache Creek near Lower Lake).

Cooperation. Mean daily gage-height record furnished by Clear Lake Water Co.

Gage height, in feet, water year October 1949 to September 1950

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.

0.59

.57

.55

.53

.52

.50

.49

.48

.47

.46

.46

.45

.44

.42

.40

.38

.35

.33

.31

.29

.28

.27

.27

.26

.25

.25

.24

.23

.22

.20

.19

Nov.

0.1S

.19

.20

.20

.20

.20.

.20

.20

.25

.28

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

.30

Dec.

0.30

.30

.30

.30

.30

.30

.33

.33

.30

.24

.24

.24

.24

.23

.23

.23

.24

.25

.26

.26

.27

.28

.28

.27

.26

.26

.26

.25 .'25

.25

.25

Jan.

0.25

.25

.24

.24

.24

.24

.25

.30

.33

.36

.41

.43

.45

.56

.62

.70

.80

.93

1.03

1.06

1.13

1.22

1.25

1.28

1.35

1.38

1.45

1.52

1.55

1.57

1.59

Feb.

1.61

1.64

1.70

1.92

2.19

2.40

2.72

2.85

2.94

3.10

3.15

3.20

3.24

3.28

3.31

3.34

3.35

3.37

3.39

3.40

3.42

3.44

3.46

3.47

3.48

3.49

3.49

3.50

_

-

Mar.

3.51

3.52

3.52

3.53

3.53

3.53

3.56

3.56

3.55

3.55

3.55

3.55

3.55

3.55

3.55

3.55

3.55

3.59

3.62

3.67

3.69

3.73

3.80

3.93

4.02

4-. 15

4.17

4.22

4.28

4.34

4.35

Apr.

4.37

4.39

4.40

4.42

4.43

4.45

4.50

4.56

4.60

4.64

4.66

4.68

4.70

4.71

4.73

4.74

4.75

4.76

4.78

4. SO

4.80

4. SO

4. SO

4. SO

4. SO

4.79

4.78

4.77

4.76

4.75

-

May

4.73

4.72

4.71

4.70

4.69

4.68

4.66

4.65

4.65

4.65

4.61

4.59

4.56

4.54

4.52

4.50

4.48

4.46

4.43

4.40

4.37

4.34

4.31

4.28

4.25

4.22

4.20

4.17

4.14

4.11

4.09

June

4.04

3.99

3.94

3.90

3.S5

3.80

3.75

3.70

3.67

3.64

3.62

3.59

3.56

3.53

3.50

3.47

3.45

3.42

3.39

3.36

3.34

3.31

3.27

3.24

3.20

3.16

3.12

3.09

3.05

3.02

-

July

2.99

2.95

2.92

2.89

2.85

2.82

2.78

2.73

2.69

2.65

2.60

2.56

2.54

2.50

2.46

2.42

2.3S

2.34

2.30

2.26

2.22

2.18

2.14

2.10

2.07

2.03

1.99

1.95

1.90

1.86

1.81

Aug.

1.77

1.72

1.68

1.65

1.63

1.60

1.57

1.55

1.52

1.49

1.46

1.42

1.39

1.35

1.32

1.28

1.25

1.22

1.19

1.16

1.13

1.10

1.07

1.04

.98

.93

.90

.87

.84

.82

.81

Sept.

0.80

.78

.75

.71

.67

.63

.59

.57

.55

.50

.47

.45

.43

.41

.40

.38

.37

.35

.34

.32

.30

.28

.26

.24

.22

.22

.22

.22

.20

.18

-
396 COLUSA AND YOLO BASINS

Cache Creek near Lower Lake, Calif.

Location. Water-stage recorder, lat. 38°55 I , long. 122°34', in sec. 6, T. 12 N., R. 6 W., 

5UO 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 topo- graphic map).

Drainage area. 528 square miles including water surface of Clear Lake (65 square miles). 

Records available. May 1944 to September 1950.

Extremes. Maximum daily discharge during year, 391 second-feet July 19 (gage height, 3.79 

reet); minimum, 0.2 second-foot Mar. 15-23.

1944-50: 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 recorded, that of Mar. 15-23, 1950.

Remarks.--Records good. Flow completely regulated by Clear Lake Dam.

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, in seconti-feet) 

(Shifting-control method used Feb. 7 to Mar. 14, Sept. 25-30)

Oct. 1 to Nov. "16 Nov. 17 to Sept. 30

0.4 2.3 0.9 7.4 -0.2 0.2 0.6 2.6 1.5 26 2.6 13E 

.5 2.9 1.0 9.4 0 .4 .8 5.4 1.8 42 3.0 203 

.6 3.6 1.2 15 .2 .8 1.0 9.4 2.0 58 3.4 290 

.7 4.6 1.4 22 .4 1.4 1.2 15 2.3 91 3.8 394 

.8 5.9 1.6 31

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

61 

68 

77 

69 

54

35 

20

17 

17 

16

22 

27 

26 

26 

26

26 

28 

24 

23 

24

24 

24 

23 

14 

3.8

3.8 

3.8 

3.8 

3.8 

3.8 

3.8

Nov.

2.8 

3.6 

3.8 

3.8 

3.8

4.0 

3.2 

4.0 

3.5 

4.2

4.0 

3.8 

4.0 

4.0 

4.0

76 

4.8 

4.0 

3.8 

3.2

3.2 

2.8 

3.0 

3.3 

3.3

3.3 

3.3 

3.3 

3.2 

3.2

Dec.

3.2 

3.1 

2.7 

2.9 

3.2

3.2 

3.2 

3.2 

3.2 

3.2

3.1 

3.1 

2.9 

3.2 

3.2

3.2 

3.0 

3.2 

3.2

3.1

3.1 

3.1 

2.9 

3.0 

3.0

2.8 

2.8 

2.8 

2.8 

2.8 

2.8

Jan.

2.8 

2.8 

2.8 

2.7 

2.7

2.7 

3.0 

2.8 

2.6

n.o

3.2 

2.8 

2.8 

3.1 

2.7

3.0 

3.0 

3.1 

3.0 

2.7

2.8 

2.6 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.7 

2.8 

2.8

Feb.

2.8 

2.8 

3.3 

3.4 

3.9

3.7 

3.8 

3.6 

3.4 

3.6

3.4 

3.6 

3.3 

3.2 

3.2

3.3 

3.3 

3.3 

3.2 

3.3

3.3 

3.2 

3.2 

3.3 

3.3

2.3 

3.1 

3.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Itou

June 

July 

Augu 

Sept

Ha

lendar year 1949

'

ter year 1949-50 .......................

Mar.

2.0 

2.1 

2.2 

2.8 

2.8

2.8 

2.8 

2.8 

2.8 

2.8

2.8 

2.5 

2.6

1.8

1.8

1.2 

.8 

1.0 

1.0 

.9

.5 

.5 

.7 

1.6 

.6

1.0 

.3 

.3 

.3 

.3 

.3

Apr.

0.6 

1.6 

.3 

.3 

.4

.4 

.5 

1.7 

.8 

.4

.4 

.4 

.4 

.4

.6

1.3 

.6 

.6 

.6 

.6

.6 

10 

34 

104 

201

229 

237 

244 

222 

222

Secondfoot-days

797.6 

180.2 

94.2

58,476.3

87.2 

92.3 

47.7 

8,184' 1,507.5 

9,393 

10,538 

9,257 

2,365.3

42,544.0

May

190 

151 

149 

127 

139

165 

187 

211 

240 

253

268 

292 

302 

295 

268

271 

295 

300 

292 

278

288 

307 

317 

312 

309

319 

340 

322 

317 

335 

345

Maximum

77 

76 

3.2

532

3.2 

3.9 

2.8 

244 

345 

380 

391 

374 

285

391

June

356 

361 

358 

358 

372

380 

348 

324 

304 

295

280 

257 

242

251 

266

266 

262 

264 

283 

307

324 

324 

324 

324 

324

319 

324 

337 

332 

327

July

327 

.332 

337 

335 

332

314 

297 

297 

297 

297

309 

345 

348 

345 

345

345 

350 

377

391 

380

366 

353 

340 

343 

285

309 

363 

372 

372 

366 

369

Aug.

374 

345 

348 

327 

309

290 

290 

290 

307

319

302 

280 

266 

266 

264

268 

264 

271 

278

266

259 

262 

273 

302 

330

330 

330 

322 

314 

314 

297

Minimum Mean

3.8 25.7 

2.8 6.01 

2.7 3.04

2.7 160

2.6 2.81 

2.3 3.30 

.3 1.54 

.3 50.2 

127 264 

242 313 

285 340 

259 299 

2.2 78.8

.3 117

Sept.

285 

283 

283 

283 

255

216 

185 

146 

124 

101

65 

40 

24

15 

8.3

3.8 

3.7 

3.7 

2.9 

3.4

3.4 

2.2 

3.4 

3.4 

3.6

3.6 

3.6 

3.7 

3.8 

3.8

Runoff in 

acre-feet

1,580 

357 

187

116,000

173. 

183 

95 

2,990 

16,230 

18,630 

20,900 

18,360 

4,690

84,380
COLUSA AND YOLO BASINS 397

Cache Creek near Capay, Calif.

Location. Water-stage recorder, lat. 38°43'40", long. 122°06'15", in SE£ sec. 8, T. 10 

N., 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 1950.

Extremes. Maximum discharge during year, 5,310 second-feet Feb. 4 (gage height, 9.47 

1'eet); minimum, 3.5 second-feet Nov. 6.

1942-50: Maximum discharge, 23,000 second-feet Jan. 21, 1943 (gage height, 17.54 

feet), from rating curve extended above 6,300 second-feet on basis of peak flow at 

Yolo; minimum, 2.2 second-feet Sept. 11, 12, 16, 1947.

Remarks.--Records excellent. Flow regulated by Clear Lake beginning in 1915 (see p. 395). 

Many diversions above station for irrigation.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Feb. 4 Feb. 5 to Sept. 30

1.6 1.6 3.0 257 5.5 1,420 1.4 5.0 2.7 194 6.0 1,720 

1.7 5.3 3.4 387 6.0 1,720 1.5 8.0 3.0 279 7.0 2,400 

1.9 20 3.8 544 7.0 2,400 1.7 22 3.5 460 8.0 3,320 

2.1 44 4.2 730 8.0 3,320 1.9 41 4.0 670 8.5 3,920 

2.3 80 4.6 930 2.1 69 4.5 910 

2.6 146 5.0 1,140 2.4 125 5.0 1,160

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 5'

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

51 

51 

52 

61 

61

54 

46 

34 

30 

25

22 

20 

18 

20 

20

20 

20 

20 

22 

24

20 

20 

22 

22 

20

20 

18 

15 

11 

9.3 

8.0

Mov.

7.4 

6.1 

5.5 

4.9 

4.4

3.9 

4.9

6.1 

11 

17

19 

18 

15

13 

11

10 

17 

35 

22 

16

14 

12 

11 

11 

10

10 

10 

10 

10 

9.3

Dec.

9.3 

9.3

10 

11 

13

14 

15 

17 

19 

20

20 

20 

20 

20 

24

26 

27 

29 

31 

38

39 

36 

32

30

28 

27 

26 

25 

24 

24

Jan.

23 

23 

23 

22 

20

20 

20 

24 

35 

56

272 

174 

112 

748 

419

227 

927 

1,270 

800 

458

346 

805 

600 

561 

405

301 

242 

266 

294 

254 

218

Feb.

187 

164 

156- 

3,250 

2,900

3,570 

1,840 

1,080 

765 

826

925 

657 

545 

472 

416

386 

375 

343 

312 

282

254 

240 

226 

212 

202

194 

186 

176

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc

Apr!

Mflv

June 

July 

Augu 

Sept

HA

mber. ...................................

lendar year 194S 

ary

h. ......................................

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

St......................................

ter year 1949-50 .......................

Mar.

169 

162 

153 

146 

140

144 

148 

136 

129 

125

121 

119 

115 

109 

107

103 

101 

119 151' 

238

248 

215 

299 

865 

1,120

710 

549 

448 

375 

329 

292

Apr.

257 

234 

215 

197 

182

176 

204 

356 

456 

371

319 

289 

267 

248 

228

212 

194 

182 

169 

158

148 

140 

138 

155 

202

305 

319 

339 

326 

312

Secondfoot -days

856.3 

354.5 

712.6

115,406.4

9,965 

21,141 

8,185 

7,298 

10,106 

9,758 

9,966 

8,846 

2,759.9

89,948.3

May

319 

299 

286 

276 

242

240 

257 

270 

292 

319

326 

339 

364 

368 

357

326 

329 

346 

350 

336

319 

332 

3,46 

353 

350

346 

371 

378 

353 

353 

364

Maximum

61 

35 

39

6,350

1,270 

3,570 

1,120 

456 

378 

397 

378 

364 

276

3,570

June

375 

382 

382 

375 

375

393 

397 

360 

339 

322

315 

292 

299 

257 

267

282 

282 

276 

276 

289

315 

326 

326 

326 

326

326 

315 

326 

322 

315

July

309 

309 

315 

319 

315

305 

286 

276 

276 

273

273 

296 

322 

322 

326

326 

329 

339 

371 

378

364 

357 

336 

326 

322

264 

305 

350 

364 

360 

353

Aug.

364 

364 

346 

329 

319

296 

279 

276 

276 

296

302 

286 

260 

251 

248

245 

251 

242 

251 

251

245 

242 

242 

257 

289

315 

315 

312 

305 

296 

296

Sept.

276 

264 

264 

260 

264

237 

204 

179 

146 

125

113 

84 

64 

46 

37

31 

27 

26 

20 

16

13 

11 

9.8 

8.0

7.1

6.8 

5.9 

5.3 

5.0 

5.0

Minimum Mean *£«£

8.0 27.6 1,700 

3.9 11.8 703 

9.3 23.0 1,410

3.9 316 228,900

20 121 19,770 

156 155 41,930 

101 264 ' 16,230 

138 243 14,480 

240 326 ' 20,040 

257 325 19,350 

273 321 19,770 

242 285 17,550 

5.0 92.0 5,470

3.9 246 178,400

Peak discharge (base, 3.500 sec.-ft.). Feb. 4 (8 p.m.) 5,310 sec.-ft.
398 COLUSA AND YOLO BASINS 

Cache Creek at Yolo, Calif.

Location. Water-stage recorder, lat. 38°43 I 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. 1,137 square miles.

Records available. January 1903 to September 1950..

Average discharge. 47 years, 494 second-feet.

Extremes. Maximum discharge during year, 4,970 second-feet Feb. 5 (gage height, 9.02 feet); 

no now for several months.

1903-50: 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 except those for period of no gage-height record, which are fair, 

many diversions above station for irrigation. Flow regulated by Clear Lake beginning in 

1915 (see p. 395).

Revisions. W 1121: Drainage area.

Rating table, water year 1949-50 (gage height. In feet, 

and discharge, in second-feet)

0.85 

.9

1.0

1.1 

1.3

0

1.0

9.0

32

82

1.6 

1.8 

2.1 

2.5 

3.0

157

222

345

525

770

3.5 

4.0 

5.0 

6.0 

7.4

1,050 

1,350 

2,O40 

2,740 

3,720

Discharge, in second-feet; water year October 1949 to September 1950

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. Dec. Jan.

O 

0 

0 

0 

0

0 

O 

O 

O 

0

0 

0 

O 

O 

427

376 

129 

924 

730 

426

286 

372 

561 

440 

376

274 

201 

172 

204 

201 

160

Feb.

122 

94 

70 

1,360 

3,670

3,390 

2,310 

1,040 

715 

610

815 

630 

516 

453 

399

354 

328 

306 

278 

242

215 

194 

175 

160 

144

132 

122

112

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mnv

June 

July 

Augu 

Sept

Ha

lendar year 194 

aiTr

h. ......................................

ter year 1949-5(

Peak discharge (base, 2,200 sec. -ft.). F«

a Ho gage-height record; discharge compute

Mar.

112 

100 

87 

77 

70

60 

64 

50 

a49

a 48

a47 

a46 

a44 

42 

37

27 

25 

20 

47 

67

140 

127 

142 

246 

S86

640 

476 

390 

319 

266 

212

Apr.

178 

152 

130 

112 

97

3.80 

alOO 

a2OO 

a3OO 

a300

a250 

3,200 

a!70 

140 

124

a87 

a7O 

aSO 

a32 

a7

O 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot -days

0 

0 

0

 45,617

6,259 

18,956 

4,963 

2,779 

O 

O 

0 

0 

0

32,957

May

Maximum

0 

0 

0

5,740

924 

3,670 

886 

300 

0 

0 

0 

0 

0

3,670

June July

Minimum

O 

O 

O

0

0 

70 

20 

0 

0 

0 

O 0- 

0

0

Aug.

Mean

0 

0 

0

125

202 

677 

160 

92.6 

0 

0 

0 

O 

0

90.3

Sept.

Runoff In 

acre-feet

0 

0 

0

90,490

12,410 

37,600 

9,840 

5,510 

0 

0 

0 

0 

0

65,360

sb. 5 (3 a.m.) 4,970 sec. -ft. 

d on basis of records for station near Capay.
COLOSA AND YOLO BASINS 399

Kelsey Creek near Kelseyvllle, Calif.

Location. Water-stage recorder, lat. 38 055'45n , long. 122°50'25", in SE* sec. 34, T. 13 

HTTR. 9 W., 1.5 miles downstream from Widow Creek, 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 1950. December 1945 to September 1946 in 

unpuoiisnea reports of Bureau of Reclamation.

Extremes. Maximum discharge during year, 2,070 second-feet Jan. 13 (gage height, 8.65 

rSeTT; minimum, 0.5 second-foot Sept. 1, but may have been less during period of doubtful gage-height record in August.

1946-50: Maximum discharge, 2,320 second-feet Nov. 22, 1946 (gage height, 9.38 

feet), from rating curve extended above 1,200 second-feet by logarithmic plotting; minimum, that of Sept. 1, 1950.

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

rair. No storage or diversion above station.

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, In sec end-feet) 

(Shifting-control method used Sept. 1-30)

Oct. 1 to Jan. 13 Jan. 14 to Sept. 30

0.5 1.4 1.2 39 2.4 238 0.4 0.4 1.2 34 2.8 296 

.6 3.9 1.4 58 2.8 327 .5 1.5 1.4 52 3.2 392 

.7 7.5 1.6 82 3.2 420 .6 3.1 1.6 74 4.0 594 

.S 13 1.8 114 3.8 570 .7 5.6 1.8 100 5.0 864 

1.0 25 2.0 154 .8 9.2 2.0 132 6.0 1,160 

1.0 20 2.4 208 6.4 1,280

Discharge, in second-feet, water year October 1949 to September 1950

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.

2.8 

2.6 

2.6 

2.6 

2.6

2.8 

3.1 

3.1 

3.3 

3.3

3.9 

3.6 

3.3 

3.3 

2.8

2.8 

3.3 

3.6 

4.2 

4.2

4.5 

4.5 

4.5 

4.5 

4.5

4.8 

4.5 

4.5 

4.5 

5.1 

4.8

Nov.

4.8 

5.1 

5.1 

5.1 

5.5

9.5 

8.4 

7.5 

29 

25

15 

9.5 

8.0 

7.1 

6.6

7.1 

5.8 

6.2 

5.8 

5.8

5.8 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.8 

5.6

Dec.

5.8 

5.5 

5.8 

6.2 

7.5

7.5 

10 

14 

9.0 

8.0

6.6 

6.6 

6.2 

6.2 

8.4

10 

20 

36 

33 

17

14 

11 

10 

9.0 

8.4

8.4 

8.0 

8.0 

7.5 

7.1 

7.1

Jan.

7.1 

7.1 

7.1 

6.2 

6.6

6.6 

7.5 

169 

44 

556

189 

73 

147 

589 

100

203 

393 

250 

134 

82

148 

148 

110 

84 

62

58

78 

132 

74 

66 

49

Feb.

38 

32 

86 

1,060 

1,280

790 

285 

193 

154 

166

129 

105 

86 

76 

67

68 

60 

52 

49 

44

41 

40 

36 

36 

34

32 

32 

30

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr!

»y.

June 

July 

Augu 

Sept

Ha

nber. ...........-.-------.--'.---........

lender year 194S .......................

uary .. ... . * . . .... .....

ter year 1949-50 .......................

Mar.

30 

29 

27 

27 

30

30 

27 

26 

26 

26

26 

25 

24 

25 

24

23 

30 

29 

78 

60

44 

68 

232 

383 

208

143 

108 

81 

66 

59 

50

Apr.

Secondfoot-days

114.5 

237.8 

327.8

16,137.2

3,986.2 

5,101 

2,066 

1,902 

540.3 

210.1 

80.6 

43.4 

65.6

14,675.3

Peak discharge (base, 1,000 aec.-ft.J. Jan. 13 (12 p.

44 

39 

36 

34 

33

46 

245 

272 

172 

124

99 

85 

73 

62 

54

49 

44 

40 

38 

35

33

32 

29 

29 

28

28 

26 

25 

25 

23

Hay

27 

32 

32 

26 

24

23 

22 

21 

21 

20

19 

19 

18 

18 

16

16 

16 

15 

15 

14

13

13 

13 

13 

13

12 

11 

11 

10 

8.8 

8.5

Maximum

5.1 

29 

36

1,150

589 

1,280 

383 

272 

32 

9.7

4.8

1,280

June

8.5 

8.1 

7.8 

7.4 

7.0

7.0 

8.1 

8.1 

8.5 

S.8

9.7 

9.7 

8.5 

8.1

a. 5

8.1 

8.1 

7.8 

7.0 

6.3

5.6 

5.4 

5.1 

5.4 

5.4

5.1 

4.8 

4.4 

4.4 

3.4

Minimum

2. 

4. 

5.

1.

6. 

30 

23 

23 

8. 

3.

July

. d2.6

Aug.

dl.4

Sept.

0.7 

.8 

1.2 

1.4 

1.4

1.4 

1.8 

1.7 

1.8 

1.7

1.8 

2.1 

2.3 

2.5 

2.5

2.5 

3.1 

4.1 

4.8 

4.4

2.6

2.5 

2.1 

2.1 

2.1

2.1 

2.0 

2.1 

2.0 

2.0

Mean R «>« i» 

"^ acre-feet

6 3.69 227 

8 7.93 472 

5 10.6 650

6 44.2 . 32,010

2, 129 7,910 

182 10,120 

66.6 4,100 

63.4 3,770 

5 17.4 1,070 

4 7 . 00 417 

2.60 160 

1.40 86 

7 2.19 130

7 40.2 29,110

m.) 2,070 sec. -ft.; Feb. 6 (12:30 a.m.)

l,89O sec. -ft. 

d Doubtful gage-height record; discharge computed on basis of 2 discharge measurements and recoqds 

for Putah Creek near Quenoc.
400 COLUSA AND YOLO BASINS

North Fork Cache Creek near Lower Lake, Calif.

Location. Water-stage recorder, lat. 39°01', long. 122°33', in NEv sec. 31, T. 14 N., R.

b 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, 

ttecoras available. July 1930 to September 1950. 

Average aiscnarge'. 20 years, 162 second-feet.

ioaremes. Maximum discharge during year, 4,120 second-feet Feb. 6 (gage height, 8 01 

 feet); no flow Oct. 1-26.

1930-50: Maximum discharge, 20,000 second-feet Feb. 28, 1940 (gage height, 13.9

feet), by slope-area method and logarithmic plotting; no flow at times during each year

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

Talr. Several small diversions above station. 

Revisions (water years). W 831: 1932(M).

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Feb. 5 Feb. 6 to Sept. 30

1.1 0 1.9 21 4.2 550 1.2 0.2 2.2 50 4.5 655 

1.2 .2 2.1 36 4.6 735 1.3 .8 2.4 68 5.0 920 

1.3 .5 2.3 56 5.0 940 1.4 2.2 2.6 89 5.5 1,240 

1.4 1.1 2.5 80 5.5 1,240 1.5 5.5 2.8 117 6.0 1,610 

1.5 2.5 2.8 129 6.0 1,610 1.6 9.5 3.1 168 6.5 2,090 

1.6 5.8 3.1 186 6.2 1,790 1.7 14 3.4 230 6.8 2,420 

1.7 10 3.4 260 1.8 20 3.7 312 

1.8 15 3.8 388 2.0 33 4.0 422

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

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 

.2 

.5 

.8 

.8 

.9

Nov.

1.0 

1.1 

1.2 

1.5 

1.5

1.7 

1.8 

1.8 

3.2 

3.8

2.1 

1.7 

1.7 

1.7 

1.7

1.5 

1.5 

1.5 

1.5 

1.5

1.5 

1.5 

1.5 

1.5 

1.5

1.7 

2.4 

3.5

4^5

Dec.

4.5 

5.1 

5.1 

5.8 

6.2

6.2 

8.7 

9.2 

12 

11

10 

8.7 

8.3 

9.2 

11

12 

14 

33 

37 

33

23 

19 

17 

16 

15

14 

14 

13 

13 

12 

12

Jan.

12 

12 

11 

10 

10

10 

10 

23 

23 

80

151 

70 

52 

502 

138

157 

933 

831 

445 

298

516 

678 

505 

414 

283

204 

182 

232 

216 

174 

149

Feb.

125 

111 

113 

1,730 

1,460

2,410 

959 

595 

430 

553

499 

394 

336 

297 

271

266 

258 

232 

210 

192

178 

164 

150 

143 

142

136 

128 

122

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mnv

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 1949

ter year 1949-50 .......................

Mar.

114 

106 

99 

97 

105

111 

98 

93 

89 

87

86 

80 

78 

76 

73

71 

96 

130 

199 

248

192 

256 

315 

1,210 

680

464 

375 

303 

263 

230 

204

Apr.

184 

168 

154 

140 

131

150 

202 

364 

306 

260

232 

215 

204 

182 

166

154 

140 

130 

120 

112

106 

99 

93 

88 

85

80 

75 

72 

68 

67

foTt'Says

3.2 

58.7 

418.0

39,586.2

7,331 

12,604 

6,628 

4,547 

1,637 

464.5 

54.5 

14.6 

14.2

33,774.7

May

76 

97 

105 

88 

80

76 

71 

68 

65 

63

61 

58 

55 

52 

50

49 

46 

44 

43 

40

39 

37 

36 

35 

35

32 

31 

29 

27 

25 

24

»*»

0.9 

4.5 

37

3,060

933 

2,410 

1,210 

364 

105 

23 

4.5 

.7 

.5

2,410

June

23 

21 

19 

18 

18

17 

17 

19 

19 

20

20 

21 

21 

20 

19

20 

19 

17 

16 

14

12 

12 

10 

9.5 

8.7

8.7 

7.5 

6.7 

5.9 

5.5

July

4.5 

3.8 

3.8 

3.5 

3.2

2.9 

2.5 

2.2 

2.2 

2.1

2.0 

1.8 

1.7 

1.6 

1.5

1.4 

1.2 

1.1 

1.0 

1.0

1.0 

1.0 

.9 

.9 

.9

.9 

.8 

.8 

.8 

.8 

.7

Aug.

0.7 

.7 

.7 

.6 

.6

.6 

.6 

.5 

.5 

.5

.5 

.5 

.4 

-.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Sept.

0.4 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5

!s

.5 

.5 

.5 

.4 

.4

.4 

.4 

.4 

.4 

.4

Minimum Mean acre feet

0 0.10 6.3 

1.0 1.96 116 

4.5 13.5 829

0 108 78,520

10 236 14,540 ' 

110 450 25,000 

71 214 13,150 

67 152 9,020 

24 52. 8 3,250 

5.5 15.5 921 

.7 1.76 108 

.4 .47 29.0 

.4 .47 28.2

0 92.5 67,000

c discharge (base. 2.600 see.-ft.). Feb. 6 (6 a.m.) 4,120 sec.-ft. 

^--Doubtful gage-height record July 10 to Sept. 30; discharge compute

Peak diseharg 

Note. 

measurements and records for Putah Creek near Guenoc.

d on basis of 4 discharge
COLUSA AND YOLO BASINS 401

Putah Creek near Guenoc, Calif.

Location (revised).--Water-stage recorder, lat. 38°46'45", long. 122 0 31'00", in Guenoc 

land grant, just upstream from Coyote Valley dam site, 2.8 miles upstream from Soda 

Creek, and 3.2 miles downstream from highway bridge at Guenoc. Datum of gage is 913.4 

feet above mean sea level (river-profile survey).

Drainage area. 112 square miles.

Records available.--February 1904 to July 1906, July 1930 to September 1950.

Average discharge. 20 years (1930-50), 179 second-feet.

Extremes.--Maximum discharge during year, 6,800 second-feet Feb. 6 (gage height, 12.05 

feet), from rating curve extended above 1,700 second-feet; minimum, 1.1 second-feet 

Sept. 5.

1904-6, 1930-50: Maximum discharge observed, 24,600 second-feet Mar. 19, 1904 (gage 

height, 20.1 feet, datum then in use), from rating curve extended above 14,500 secondfeet; minimum, 0.6 second-foot Sept. 30, Oct. 4, 1932.

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

Small diversions above station.

Rating table, water year 1949-50 (gage height, in feet,

and discharge, In second-feet) 

(Shifting-control method used July 23 to Sept. 17)

1.1 1.3 2.0 34 5.0 724 

1.2 2.1 2.2 53 5.5 925 

1.3 3.1 2.5 90 6.0 1,160 

1.4 4.6 2.9 152 7.O 1.71O 

1.5 6.8 3.5 276 9.0 3,440 

1.6 10 4.O 4O4 1O.O 4,380 

1.8 19 4.5 552 11.0 5,500

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

1.9

1.9 

1.8 

1.8 

1.8 

1.8

1.8 

1.9 

1.9 

1.9 

1.9

1.8 

1.9 

1.9 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

1.9 

1.8

Nov.

1.7 

1.7 

1.7 

1.7 

1.8

1.9 

2.1 

2.1 

3.2 

2.6

2.3 

2.1 

2.1 

2.0 

2.0

2.0 

2.0 

1.9 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

Dec.

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

2.4 

2.1 

2.0 

1.9

1.9 

1.9 

1.9 

2.1 

2.2

2.0 

45 

93 

86 

45

29 

21 

18 

. 16 

14

14 

13 

12 

12 

12 

a!2

Jan.

a!2 

a!2 

a!2 

a!2 

a!2

a!2 

a!2 

a25 

alOO 

a250

a500 

a250 

a!50 

al,800 

427

818 

1,660 

1,110 

525 

340

519 

497 

382 

289 

229

187 

283 

558 

296 

231 

195

Feb.

167 

147 

361 

5,12O 

2,560

3,120 

1,06O 

659 

505 

781

542 

424 

351 

303 

267

252 

227 

202 

181 

169

154 

144 

135 

125 

118

113 

1O6 

101

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

97 

91 

89 

86 

90

87 

82 

77 

75 

72

75 

71 

68 

65 

63

62 

84 

87 

212 

173

127 

152 

440 

1,300 

58 7

379 

325 

252

216 

189 

167

Apr.

149 

135 

125 

133 

113

178 

338 

502 

356 

267

227 

202 

185 

163 

147

135 

127 

119 

110 

103

97 

90 

84 

80 

77

74 

69 

66 

63 

61

Secondfoot-days

60. 0 

59.7 

473.8

46,632.4

11,705 

18,394 

5,940 

4,575 

1,276 

339.9 

179.1 

76.5 

75.4

43,154.4

May

72 

89 

97 

75 

66

53 

58 

55 

53 

50

48 

45 

42 

39 

38

36 

34 

31 

29 

28

27 

25 

23 

25 

24

22 

20 

20 

18 

17 

17

Maximum

2.1 

3.2 

93

3,850

1,800 

5,120 

1,300 

502 

97 

16 

8.1 

3.2 

3.1

5,120

June

16 

15 

14 

14 

12

11 

12 

13 

13 

13

14 

14 

13 

12 

12

12 

12 

11 

11 

10

10 

8.7 

8.7 

8.7 

9.0

8.1 

7.8 

8.4 

8.4 

8.1

July

8.1 

7.8 

7.8 

7.8 

7.4

7.4 

7.4 

7.1 

7.1 

6.8

5.5 

5.5 

5.3 

5.5 

5.9

6.4 

6.4 

6.1 

5.9 

5.5

5.0 

5.0

4.8 

4.6 

4.4

4.3 

4.3 

4.0 

3.1 

3.8 

3.1

Aug.

3 

3 

2 

3 

3

3 

3 

3 

2 

2

2 

2 

2 

2 

2

2 

2

1 

1 

2

1 

1 

1 

1 

2

2 

2 

2 

2 

2 

2

Minimum Mean

1.8 1.94 

1.7 1.99 

1.9 15.3

1.5 128

12 378- 

101 657 

62 192 

61 152 

17 41.2 

7.8 11.3 

3.1 5.78 

1.9 2.47 

1.9 2.51

1.7 118

Peak discharge (base, 5,000 sec. -ft.). Jan. 13, 14 (time unknown) 6,730 sec. -ft.; Feb.

.1 

.1 

.9 

.2 

.2

.2 

.2 

.0 

.8 

.9

.7 

.6 

.6 

.4 

.0

.3 

.1 

.9 

.9 

.2

.9 

.9 

.9 

.9 

.2

.2 

.3 

.3 

.2 

.2 

.2

Sept.

2.2 

2.3 

2.4 

2.3 

1.9

2.0 

2.3 

2.2 

2.1 

2.6

2.2 

2.3 

2.2 

2.6 

2.. 6

2.8 

2.9 

3.1 

3.0 

2.7

2.7 

2.7 

2.7 

2.8 

2.8

2.6 

2.8 

2.8 

2.4 

2.4

Runoff in 

acre-feet

119 

118 

940

92,490

23,220 

36,48X3 

11,780 

9,070 

2,530 

674 

355 

152 

150

85,600

6 (2 a.m.)

6,800 sec.-ft.

a No gage-height record; discharge computed on basis of records for stations at Gamble Ranch (unpublished) and near Winters.
402 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.

H' W., 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. 

K'ecoras available.--June 1930 to September 1950. 1905-31 at site at Winters, 6 miles downstream; records equivalent except for very low flows. 

Average discharge.--20 years (1930-50), 438 second-feet. 

Jixtremes.--Maximum discharge during year, 21,300 second-feet Feb. 4 (gage height, 19.27

reet); no flow Sept. 6-15.

1905-50: Maximum discharge, 70,500 second-feet Feb. 27, 1940 (gage height, 30.5

feet, present datum), from rating curve extended above 28,000 second-feet by slope-area

computations; minimum (at present site), that of Sept. 6-15, 1950. 

Remarks.--Records good except those for period of indefinite stage-discharge relation, and

those below 20 second-feet, which are fair. Several pumps above station divert water

for irrigation. 

Revisions (water years). W 901: 1937(M), 1938(M).

Rating table, water year 1949-50, except period of Indefinite stage-discharge relation

(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used June 16 to Sept. 3o)

2.9 O 4.4 38 7.0 478 11.5 3,200 

3.3 2.O 4.7 60 7.5 638 13.0 5,310 

3.5 3.9 5.0 88 8.0 830 15. 0 9,1OO 

3.6 5.6 5.4 140 8.5 1,050 17.0 13,9OO 

3.8 11 6.0 240 9.5 1,560 

4.1 22 6.5 346 1O.5 2,260

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

2.7 

2.4 

2.1 

2.1 

2.2

2.0 

1.6 

1.4 

1.9 

2.1

2.1 

2.0 

1.9 

1.7 

1.7

1.6 

1.3 

1.2 

1.2 

1.3

2.0 

3 

4

4 

4

4 

4.5 

5 

5 

6 

5

Nov.

5 

5 

5 

5 

5

5 

6 

7 

9

15

10 

8 

7 

6 

6

6 

6 

6 

6 

6

6 

6.0 

6 

6 

6

6 

7 

7 

7 

7

Dec.

8 

8 

8 

9 

10

11 

12 

13 

15 

14

12 

10 

8

7 

7

6.6 

10 

40 

100 

80

60 

50 

40 

35 

30

30 

25 

24 

26 

25 

25

Jan.

26 

27 

27 

27 

27

27 

27 

33 

34 

259

1,850 

5*6 

304 

4,060 

1,180

956 

3,500 

2,830 

1,400 

814

738 

919 

688 

575 

433

344 

298 

984 

786 

506 

396

Feb.

327 

282 

258 

12,800 

7,640

8,560 

2,940 

1,660 

1,200 

1,470

1,550 

1,020 

822 

685 

588

524 

498 

436 

386 

348

318 

294 

276 

260 

242

229 

218 

206

Month

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

197 

187 

177 

172 

167

165 

165 

156 

148 

144

141 

136 

134 

130 

125

120 

120 

132 

159 

301

268 

218 

244 

1,790 

1,540

862 

616 

503 

404 

348 

307

Apr.

274 

250 

227 

211 

197

199 

298 

695 

688 

489

388 

334 

302 

278 

254

235 

218 

204 

189 

175

165 

154 

146 

137 

129

123 

118 

108 

104 

100

Secondfoot -days

83.0 

198.0 

758.6

93,949.5

24,621 

46,037 

10,276 

7,389 

1,946 

281.7 

85.7 

87.8 

57.4

91,821.2

Peak discharge (base, 6^600 sec. -ft.). Jan. 14 (12:30

May

99 

107 

143 

153 

127

110 

101 

94 

88 

84

78 

73 

66 

62 

60

54 

54 

49 

41 

38

33 

30 

29 

27 

25

25 

25 

22 

18 

17 

14

Maximum

6 

15 

100

11,300

4,060 

12,800 

1,790 

695 

153 

14 

6.6 

6.9 

5.6

12,800

, June

14 

12 

11 

10 

10

8.8 

8.2 

9.7 

10 

7.7

7.9 

7.4 

8.5 

8.5 

8.5

9.4

9.1 

10 

12

11

9.4 

9.7 

9.7 

9.4 

9.7

9.1 

8.8 

7.4 

7.7 

7.1

July

5.0 

6.1 

6.6 

6.6 

6.6

5.9 

4.6 

3.8 

3.4 

3.1

2.2 

1.9 

1.6 

1.6 

1.5

1.6 

1.4 

1.6 

1.5 

1.3

1.2 

1.5 

1.6 

1.8 

2.0

2.0 

1.8 

1.4 

1.4 

1.4 

1.7

Aug.

1.8 

1.6 

1.6 

6.4 

6.9

5.2 

4.6 

6.6 

5.0 

3.9

2.9 

2.3 

1.6

1.1 

1.1

.9 

.4 

.2 

.1 

1.2

3.1 

4.0 

4.1 

4.1 

3.3

2.6 

2.3 

2.2 

2.0 

2.3 

2.4

Sept.

1.9 

1.2 

.7 

.3 

.1

0 

0 

0 

O 

O

0 

0 

0

o

.3

1.9 

3.0 

3.3 

3.2 

4.6

5.6 

4.4 

4.2

3.8 

3.4

3.2 

3.0 

2.9 

3.0 

3.4

m«< ,, u.0,. Runoff in Minimum Mean acre.feet

1.2 2.68 165 

5 6.60 393 

6.6 24.5 1,500

257 186,300

26 794 48,840 

206 1,644 91,310 

120 331 20,380 

100 246 14,660 

14 62.8 3,860 

7.1 9.39 559 

1.2 2.76 170 

.1 2.83 174 

0 1.91 114

0 252 182,100

p.m.) 8,200 sec. -ft. j Feb. 4 (5:30 p.m. )

21,30O sec.-ft.

Note. Stage-discharge relation Indefinite Oct. 22 to Dec. 27; discharge computed on basis of unpublished records for station at Gambles Ranch.
COLUSA AND YOLO BASINS 403

Putah Creek near Davis, Calif.

Location.--Water-stage recorder, lat. 38°31'25", long. 121°47'10", in SE^ sec. 19, T. 8 

W., K. 2 E., in Los Putos Grant, 3.3 miles southwest of Davis. Altitude of gage, about 

45 feet (from topographic map).

Drainage area.--658 square miles.

Records available.--May 1948 to September 1950.

Extremes. Maximum discharge during year, 20,000 second-feet Feb. 4 (gage height, 16.48 

feet); no flow for several months.

1948-50: Maximum discharge, 23,600 second-feet Mar. 12, 1949 (gage height, 17.2 

feet), from rating curve extended above 5,300 second-feet by logarithmic plotting and 

velocity-area study; no flow for several months.

Remarks. Records good. Several pumps above station divert water for irrigation.

Rating tables, water year 1949-5O (gage height, in feet, 

and discharge, in second-feet)

4.0 226

4.2 303

4.5 430

4.8 57O

Jan. 11 to Feb. 4

5.2 

5.6 

6.0

810 

1.P90 

1,400

6.5 1,810

7.O

8.0

10.0

2,270

3,340

6,020

12.0 9,550

2.76

2.8

2.9

3.0 

3.2 

3.4

1.0

5.5

14

39

78

Feb. 5 to Sept. 3O

3.7 

4.1 

4.5 

5.0 

6.0

156 

3OO 

490 

785 

1,560

6.5 2,01O

7.0

8.0

10.0

12.0

13.0

2,480 

3,510 

6.O2O 

9,550 

11,500

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

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.

O 

O 

O 

O 

0

O 

O 

0 

0 

O

1,280 

692 

364 

2,790 

1,640

668 

2,640 

2,890 

1,560 

838

540 

620 

650 

516 

426

343 

295 

544 

810 

498 

385

Feb.

327 

283 

252 

7,650 

10,200

7,910 

3,310 

1,950 

1,370 

1,320

1,700 

1,110 

885 

740 

642

572 

528 

485 

42O 

368

336 

296 

276 

256 

238

227 

212 

202

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 194S 

ary

uary. ... * . ..... . .. .

--

ter year 1949-5O .......................

Mar.

192 

178 

172 

166 

156

153 

153 

150 

142 

136

134 

128 

125 

123 

118

110 

110 

110 

131 

178

280 

212 

202 

1,030 

1,700

899 

606 

496 

395 

336 

292

Apr.

256 

234 

2O9 

192 

178

175 

212 

466 

672 

49O

381 

332 

292 

268 

245

223 

209 

195 

178 

166

153 

142 

134 

120 

115

105 

100 

90 

80 

78

Secondfoot -days

O 

O 

0

92,209.5

20,989 

44,065 

9,313 

6,690 

837.7 

O 

O 

0 

0

81,894.7

May

76 

76 

90 

118 

112

90 

78 

68 

61 

53

11 

4.2 

.5 

O 

O

O 

0 

O 

O 

0

0 

0 

O 

O 

O

O 

0 

0 

0 

O 

O

Maximum

0 

0 

O

12,600

2,890 

10, 200 

1,700 

672 

118 

O 

0 

0 

O

10,300

June July

Minimum

O 

O 

0

0

0 

202 

110 

78 

O 

0 

O 

0 

0

O

Aug.

Mean

0 

O 

O

253

677 

1,574 

300 

223 

27.0 

0 

0 

0 

O

224

Sept.

Runoff In 

acre-feet

0 

0 

0

182,900

41,630 

87,400 

18,170 

13,270 

1,660 

O 

0 

0 

0

162,400

Peak discharge (base, 5,000 sec. -ft.) . Jan. 14 (8 p.m.) 6,460 sec. -ft.; Feb. 4 (10:30 p.m.)

20,000 sec. -ft.
404 NAPA RIVER BASIN

River near St. Helena, Calif.

Location. Water-stage recorder, lat. 38°29'40", long. 122°25'50", in SE£ sec. 32, T.

 8 N., K. 5 W., 0.2 mile upstream from highway bridge, 1.3 miles northeast of Zinfandel, 

and 2.5 miles east of St. Helena. Altitude of gage, about 200 feet (from topographic map).

Drainage area. 83.5 square miles.

Records available. November 1929 to September 1932, November 1939 to September 1950.

Average discharge. 12 years (1930-32, 1940-50), 72.2 second-feet.

Extremes. Maximum discharge during year, 4,910 second-feet Feb. 4 (gage height, 9.42 feet);

 no now Oct. 14.

1929-32, 1939-50: Maximum discharge, 11,800 second-feet Feb. 6, 1942 (gage height, 14.6 

feet); no flow at times during 1940, 1944, 1945, 1947-49.

Remarks. Records good. Small diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

,Day

1 

2 

3 

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

16

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

"Oct.

0.6 

.6 

.3 

.1 

.2

.3 

.2 

.3 

.4 

.5

.5 

.4 

.2 

0 

.1

.3 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.5 

.5

.5 

.5 

.5 

.4 

.4 

.4

Nov.

0.3 

.4 

.4 

.4 

.4

.4 

.5 

.5 

.8 

.7

.6 

1.1 

1.2

1.1 

.9

.8 

.7 

.7 

.6 

.5

.5 

.5 

.5 

.5 

.5

.6 

.6 

.7 

.7 

.7

Dec.

0.7 

.8 

.8 

.8 

.8

.8 

1.0 

4.8 

4.8 

3.1

2.0 

1.5 

1.3 

1.3 

1.6

3.1 

6.8 

11 

11 

8.2

5.8 

4.8 

4.2 

3.9 

3.4

3.4 

3.1 

2.8 

2.8 

2.8 

2.8

Jan.

3.1 

3.1 

3.1 

3.1 

3.4

3.4 

3.4 

11 

10 

230

140 

42 

85 

843 

104

343 

1,340 

843 

336 

216

218 

247 

170 

125 

91

72 

148 

360 

165 

114 

93

Feb.

75 

66 

105 

3,470 

1,490

1,780 

582 

352 

257 

301

218 

165 

137 izi

105

103 

93 

84 

76 

68

64 

58 

55 

51 

50

48 

45 

43

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Ha

lendar year 1949

h. ......................................

ter year 1949-50 .......................

Mar.

42 

40 

36 

36 

39

35 

32 

31 

31 

30

31 

28 

26 

25 

24

23

28 

26 

81 

72

50 

66 

146 

782 

303

187 

163 

127 

108 

93 

81

Apr.

72 

67 

62 

56 

52

68 

104 

119 

91 

75

67 

55 

54 

48 

45

42 

40 

36 

33 

32

29 

27 

26 

25 

24

23 

21 

21 

20 

20 

Secondfoot -days

11.5 

16.8 

106.0

17,683.6

6,368.6 

10,062 

2,822 

1,454 

429.4 

133.6 

40.9 

27.0 

15.3

21,489.1

May

22 

25 

26 

24 

20

18

17 

17 

 17 

16

15 

15 

15 

14

14

13

12 

12 

11 

10

12 

10 

3.6 

8.6 

10

8.2 

8.6 

7.8 

7.0 

8.2 

7.4

Maximum

0.6 

1.2 

11

2,580

1,340 

3,470 

782 

119 

26 

8.2 

2.4 

1.6 

1.1

3,470

June

6.6 

8.2 

7.4 

7.8 

7.0

4.1 

4.5 

4.4

6.6 

7.4

7.0 

3.1 

2.3 

4.0 

3.9

2.4 

2.4 

7.0 

5.5 

4.2

3.1 

2.2 

3.2 

1.1 

2.2

4.3 

4.3 

2.6 

3.0 

1.8

July

1.9 

.8 

.4

2.0 

1.6

.5 

.5 

1.4 

2.4 

1.3

.8 

1.3 

1.1 

1.5 

1.3

1.1 

1.3 

2.2 

1.8 

1.8

1.8 

1.1 

1.2 

.9 

.9

1.4 

1.6 

.9 

1.4 

1.1 

1.6

Minimum

0 

.3

.7

0

3.1 

43 

23 

20 

7.0 

1.1 

.4 

.2 

.2

0

Aug.

0.8 

.3 

1.0 

1.2 

1.6

1.2 

1.6 

.7 

.2 

.6

1.2 

.8 

.6 

.9

1.1

1.0 

.7 

.2 

1.0

1.2

1.2 

.7 

.7 

.6 

1.2

1.1

1.2 

1.3 

.7 

.2 

.2

Mean

0.37 

.63 

3.42

48.4

205 

359 

91.0 

48.5 

13.9 

4.45 

1.32 

.87 

.51

58.9

Peak discharge (base, 2,300 sec.-ft.j. Jan. 14 (3 a.m.) 2,550 sec. -ft.; Feb. 4 (2 p.m.

Sept.

0.7 

.5 

.3 

.3 

1.0

1.1 

.4 

.3 

.3 

.9

.9 

.5 

.4 

.2 

.4

.4 

.2 

.5 

1.0 

.5

.5 

.6 

.7 

.7 

.8

.4

.2 

.2 

.2 

.2

Runoff In 

acre-feet

23 

37

210

35,070

12,630 

19,960 

5,600 

2,880 

852 

265 

81 

54 30 '

42,620

i 4,910
NAPA RIVER BASIN 405

Conn Creek near St. Helena, Calif.

Location. Water-stage recorder, lat. 38°29', long. 122°24', in NW£ sec. 3, T. 7 N., R. 

b W., 0.2 mile upstream from highway bridge, 4 miles southeast of St. Helena, and 

6 miles upstream from mouth. Altitude of gage, about 180 feet (from topographic map).

Drainage area. 52.0 square miles.

Records available. November 1929 to September 1950.

Average discharge. 15 years (1930-45), prior to construction of Conn Valley Dam, 34.7 

second-reel;.

Extremes. Maximum discharge during year, 72 second-feet Mar. 24 (gage height, 2.72 feet); 

no now for several months.

1929-50: Maximum discharge, 7,700 second-feet Feb. 27, 1940 (gage height, 11.80 

feet), from rating curve extended above 6,000 second-feet; no flow for several months 

each year.

Remarks. Records fair. Plow completely regulated by storage in Conn Valley Reservoir 

Beginning in December 1945 (capacity, 31,000 acre-feet); contents, 26,300 acre-feet 

Sept. 30, 1949, and 26,700 acre-feet Sept. 30, 1950. Small diversions for water supply 

and irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

3.5

.4

.1 

0 

0 

0 

0 

0

Nov. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0

o 

.z

0

2.7 

5.0 

1.9 

.9 

.5

.4 

.4

.4 

.2 

.4

0 

0 

.6 

.5 

.5 

.3

Feb.

0 

0 

0 

12 

7.2

7.2 

2.5 

1.5 

1.3

1.5

1.7 

1.3 

1.3 

1.2 

1.2

1.0 

1.0 

.9 

.9 

.8

.8 

.6 

.6 

.4 

0

0 

0 

O

Month

Octo 

Move 

Dece

Ca

janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

mber. ...... ... - ....... .......

lendar year 1949

Mar.

0 

0 

0 

0 

0

0 

.4 

1.0 

1.5 

2.8

5.6 

5.0 

4.0 

4.0 

4.0

3.6 

5.6 

5.0 

8.0 

8.0

6.1 

6.7 

7.5 

57 

58

43 

36 

29 

25 

22 

18

Apr.

17

17 

15 

14 

13

14 

18 

33 

36 

25

20 

15 

12 '10 

8.5

9.0 

8.0 

7.3 

7.0 

5.3

4.6 

3.7 

3.9 

1.0 

.2

.1 

0 

0 

0

1.1

Secondfoot -days

125.6 

0 

0

1,083.7

14.9 

46.9 

366.8 

318.7 

27.6 

177.5 

172.9 

14.1 

17.0

1,262.0

May

0.8 

.2 

0 

0 

0

0 

.9 

.3

.1 

0

0 

0 

0 

.4 

.7

.8 

.8 

.8 

.7 

.6

1.3

3.1 

2.3 

1.7 

1.7

1.7 

1.7 

1.8 

1.7 

2.6 

.9

Maximum

5.6

0 

0

1-2

5.0 

12 

58 

36 

3.1 

8.5 

7.0 

2.6 

3.5

56

June

0.3

0 

O 

.1 

1.2

4.4 

4.9 

6.0 

6.3 

6.6

7.0 

7.0 

7.7 

8.0 

7.7

8.0 

8.5 

8.5 

8.5 

7.7

6.6 

6.6 

7.0 

7.7 

7.3

7.3 

7.0 

7.0 

6.6 

6.0

July

6.0 

6.0 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.3 

5.6

4.0 

4.2 

4.4 

4.4 

4.4

4.6 

4.9 

4.9 

5.3 

5.6

6.0 

6.3 

6.3 

6.6 

6.6

7.0 

7.0 

6.6 

6.6 

6.6 

4.1

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

4.0 

0 

0

0

Aug.

0.8 

0 

0 

0 

0

.3 

1.6 

.2

0 

0

0 

0 

0 

1.6 

.2

0 

0 

0 

1.7 

2.6

1.8

.4 

.1 

0 

0

0 

.7 

1.7 

.4 

0 

0

Mean

4.05

0 

0

2.97

.48 

1.68 

11.8 

10.6 

.89 

5.92 

5.58 

.45 

.57

3.51

Sept.

0

.1

2.4 

3.5 

2.5

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.6 

0.

0 

0 

0 

0 

0

0 o

0 

.4 

.6

.5

0 

0 

0 

0

Runoff In 

acre-feet

249 

0 

O

2,150

30 

93 

728 

632 

55 

352 

343 

26 

34

2,540

207481 O - 52 - 27
406 NOVATO CREEK BASIN

Novato Creek near Novato, Calif.

Location. Water-stage recorder, lat. 38°07>, long. 122°36i, In Novato Grant, 500 feet 

 3ownstream from county road bridge and 1 mile west of D. 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 1950.

Extremes. Maximum discharge during year, 978 second-feet Feb. 4 (gage height, 7.15 feet); 

no now for several months.

1946-50: Maximum discharge, that of Feb. 4, 1950; no flow for several months each 

year.

Remarks. Records good. No storage or diversion.

Rating tables, water year 1949-50 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Jan. 11-13)

0.7 0

.8 .1

.9 .4

1.0 1.4

Oct. 1 to Jan. 16

1.1 3.3

1.2 7.1

1.3 12

1.4 18

1.5 26

1.7 45

2.0 79

2.7 168

Jan. 161 to Sept. 30

0.68 0

.7 .1

.S .5

.9 1.6

1.0 3.4

1.1

1.2 

1.4 

1.6 

1.8

6.2

10

21

35

53

2.0 75

2.4 133

5.0 530

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

3i

Oct. Nov. Dec. Jan.

0

0

0

0

0

0

0

0

o

0

3.9

2.8

2.3

45

8.4

157

302

93

41

28

29

30

29

22

18

15

38

89

38

26

21

Feb.

18

15

22

580

2.53

197

91

63

48

53

35

28

24

20

18

17

15

14

12

11

9.9

9.0

8.5

7.3

6.9

6.6

5.9

6.2

_

_

-

Month

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

Calendar year 1949 ......................

May

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

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

Mar.

5.9

5.3

5.0

5.0

5.3

4.4

4.4

4.4

4.4

4.2

4.2

3.7

3.4

3.2

3.2

3,0

3.4

3.2

4.9

3.4

3.0

3.4

3.9

21

8.5

6.6

5.6

4.7

4.4

4.2

3.7

Apr.

3.4

3.2

3.0

3.0

2.8

3.7

4.2

5.3

3.2

3.0

2.8

2.8

2.6

2.4

2.2

2.2

2.2

2.2

2.2

2.1

2.1

2.1

1.9

1.6

1.3

1.3

1.3

1.2

1.2

1.2

Seoondfoct-days

0

3,677.1

152 9

22 9

0

2,888.2

May

1.5

1.6

1.6

1.3

1.3

1.2

.8

.5

.9

.9

.8

.8

.9

.9

.9

.8

.7

.6

.5

.5

.4

.4

.4

.5

.4

.4

. .4

.3

.3

.2

.2

Maximum

0

465

0

580

June

0.3

.3

.4

.3

.4

.3

.2

.2

.3

.3

.3

.3

.2

.2

.3

.2

.3

.3

.2

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

-

Minimum0

0 .

0

0

July Aug.

Mean

0

10.1

2 AC

0

7.91

Sept.

Runcff in 

acre-feet

0

7,290

303

0

5,730

Peak discharge (base, 200 sec.-ft.). Jan. 16 (11 p.m.) 455 sec.-ft.j Jan. 28 (1 a.m.) 258 sec.- 

ft.j Feb. 4 (4 a.m.; 978 Bed.-ft.
PETALUMA CREEK BASIN 407

Petaluma Creek near Petaluma, Calif.

Location. Water-stage recorder and concrete control, lat. 38 0 15'40", long. 122°39 I 35", 

in Roblar De La Miseria Grant, 70 feet downstream from county road bridge, 1.3 miles 

downstream from Lichau Creek and 2.0 miles northwest of Petaluma, Sonoma County. Altitude of gage, about 40 feet (from topographic map).

Drainage area. 29.6 square miles.

Records available. October 1948 to September 1950.

Extremes. Maximum discharge during year, 1,270 second-feet Feb. 4 (gage height, 12.19 

reet); no flow for several months.

1948-50: Maximum discharge, that of Feb. 4, 1950; no flow for several months 

each year.

Remarks. Records good. Ho storage or diversion above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

o 

.1 

.1

0 

0

0 

0 

0

.1 

.1

0

.1 

.1 

.1 

.1

.1 .1 

.1 .1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Jan.

0.1

.1 

.1 .1 

.1

.1 

.1 

.1 

.1

.5

4.7 

2.4 

1.5 

45 

6.0

184 

657 

194 

35 

17

90 

111 

48 

24 

11

6.6 

82 

377 

38 

18 

12

Feb.

8.1 

6.6 

15 

1,O4O 

314

357 

47 

28 

22 

34

24 

14 

11 

9.8 

8.4

11 

11 

8.1 

6.4 

5.4

4.3 

3.6 

3.3 

3.2 

2.9

2.9 

2.6 

2.4

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Bay.

June 

July 

Augu 

Sept

Va

lendar year 1949

ter year 1949-50 .......................

Peak discharge (base, 200 sec. -ft.). Jan.

ft.; Jan. Zl (9 p.m.) 346 sec. -ft.; Jan. 28

Mar.

2.2 

2.1 

1.8 

1.7 

1.7

1.7 

1.5 

1.2 

1.3 

1.3

1.1 

.8 

.7 

.6

.6

.4 

.6 

.9 

2.5 

3.5

1.5 

2.1 

2.8 

96 

36

12 

6.8 

3.3 

2.0 

1.3 

.8

Apr.

0.6 

.4 

.4 

.3 

.2

.4 

6.4 

16 

14 

5.4

3.2 

2.5 

2.4 

2.1 

1.7

1.5 

1.2 

1.0 

.9 

.8

.6 

.4 

.3 

.2 

.2

.2 

.2

.1 

.1 

.1

Secondfoot -days

0 

o 

1.9

2,542.1

1,965.6 

2,006.0 

192.8 

63.8 

5.5 

.6 

0 

0 

0

4,236.2

May

0.1 

.2 

1.0 

.9 

.5

.3

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Maximum

o

0

.1

666

657 

1.O4O 

96 

16 

1.0 

.1 

0 

0 

0

1,040

14. (5:30 a.m.) 202 sec 

(2:3O a.m.) .822 sec. -ft

June

0.1 

.1 

.1 

.1 

.1

.1 

0 

0 

0 

0

0 

0 

0 

0

o

0

o 

o

0 

0

o 

o

0

o

0

o

0 

0 

0 

0

July

Minimum

0 

0 

0

0

.1

2.4 

.4 

.1

.1 

0 

0 

0 

0

o

Aug.

Mean

0 

0 

.06

6.96

63.4 

71.6 

6.22 

2.13 

.18 

.02 

0 

0 

0

11.6

Sept.

'

Runoff In 

acre-feet

0 

0 

3.8

5,050

3,900 

3,980 

382 

127 

11 

1.2 

O 

O 

O

8,400

-ft.; Jan. 17 (6 p.m.) 755 sec.- 

; Feb. 4 (7 a.m.) 1,270 sec. -ft.
408 RUSSIAN RIVER BASIN

Russian River near Hopland, Calif.

Location.--Water-stage recorder, lat. 39°01'35", long. 123 0 07'45", in Rancho de Sanel

Grant, 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 1950.

Average discharge. 10 years (1940-50), 609 second-feet.

Extremes.--Maximum discharge during year, 8,980 second-feet Mar. 24 (gage height, 14.67 

feet); minimum, 26 second-feet June 29.

1939-50: Maximum discharge, 34,100 second-feet Feb. 28, 1940, from rating curve 

extended above 30,000 second-feet; maximum gage height, 26.12 feet Jan. 21, 1943; minimum discharge, 24 second-feet Dec. 18, 1943.

Flood of December 1937 reached a stage of about 30.0 feet, from floodmarks.

Remarks. Records good except those for periods of no gage-height record or periods computed from staff-gage readings, which are fair. Flow considerably affected by diversion 

into basin; see "Remarks" for East Fork Russian River near Calpella. Small diversions 

above station for irrigation.

Revisions. W 1041: Drainage area.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

5

6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17

18 

19 

20

31 

32 

23 

24 

25

26 

27 

2S 

39 

30 

31

Oct.

116 

120 

129 

120 

120

133 

113 

110 

116 

123

135 

129 

, 120 

120 

113

a!40 

a!40 

a!45 

alSO 

146

146 

149 

146 

146 

153

156 

149 

146 

90 

88 

101

Nov.

129 

126 

146 

146 

149

146 

146 

152 

166 

217

321 

191 

191 

191 

213

213

213 

313 

213 

213

217 

217 

213 

313 

213

213 

317 

221 

221 

221

Dec.

231 

217 

217 

217 

221

221 

229 

229 

229 

221

231 

221 

221 

225 

225

325 

341 

250 

254 

241

233 

233 

229 

325 

225

321 

221 

321 

331 

231 

221

Jan.

231 

221 

221 

221 

221

225 

225 

326 

348 

1,530

1,120 

731 

678 

3,870 

992

1,930 

5,280 

3,900 

1,500 

985

2,260 

1,700 

1,640 

1,360 

985

773 

1,190 

2,040 

1,130 

860 

755

Feb.

646 

580 

866 

6,430 

3,110

5,040 

2,200 

1,470 

1,200 

2,020

1,480 

1,160 

971 

834 

737

815 

743 

656 

602 

568

536 

505 

480 

430 

304

373 

354 

333

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wa

lender year 1949

ter year 1949-50 .......................

Mar.

217 

209 

198 

188 

194

290 

241 

217 

305 

221

237 

241 

217 

205 

194

184 

727 

640 

2,520 

1,460

950 

1,300 

2,040 

5,800 

2,480

1,560 

1,300 

929 

773 

656 

563

Apr.

490 

440 

405 

371 

344

371 

410 

785 

662 

510

440 

405 

420 

568 

585

568 

552 

541 

515 

500

490 

475 

470 

460 

455

450 

435 

425 

420 

405

Secondfoot -days

3,997 

5,761 

7,017

177,260

39,428 

35,142 

27,056 

14,367 

10,973 

2,887 

4,110 

3,368 

5,113

159,117

May

460 

510 

541 

475 

450

440 

430 

425 

420 

410

395 

390 

376 

366 

366

362 

353 

344 

344 

348

358 

353 

294 

268 

281

245 

221 

198 

188 

184 

177

Maximum

156 

221 

354

6,070

5,280 

6,430 

5,800 

785 

541 

163 

229 

126 

229

6,430

June

163 

156 

152 

146 

143

146 

146 

138 

153 

149

139 

h!29 

hlOl

hds

h75

h!39 

a90 

a95 

h90

h66

hSO 

h52 

a45 

41 

44

46 

37 

30 

38 

32

July

90 

110 

123 

194 

229

142 

135 

2 OS 

213 

217

156 

129 

126 

130 

116

130 

116 

113 

120 

110

107 

113 

139 

123 

110

104 

110 

104 

104 

132 

90

Minimum

as

126

317

26

221 

233 

184 

344 

177 

38 

90 

82 

99

28

Aug.

, 110 

113 

107 

107 

126

110 

101 

110 

110 

113

113 

133 

110 

99 

107

107 

107

99 

116 

93

82 

96 

101 

101 

101

116 

101 

85 

99 

101 

104

Mean

129 

192 

236

486

1,273 

1,255 

873 

479 

354 

96.2 

133 

105 

170

436

Sept.

101 

110 

99 

107 

107

113 

120 

123 

170 163

180 

177 

177 

177 

177

188 

174 

217 

305 

202

198 

194 

194 

170 

184

317 

217 

309 

313 

329

Runoff In 

acre-feet

7,930 

11,430 

13,920

351,600

78,200 

69,700 

53,660 

28,500 

21,760 

5,730 

8,150 

6,480 

10,140

315,600

Peak discharge (base, 9,600 sec. -ft.) . Mo peak above base.

a Ho gage-height record; discharge computed on basis of records for East Fork Russian River near 

Calpella.

h Computed from staff-gage readings.
RUSSIAN RIVER BASIN 409

Russian River near Healdsburg, Calif.

Location.--Water-stage recorder, lat. 38 0 36'45", long. 122°50'05", in SE£ sec. 22, T. 9 

N., K. 9 W., 2 miles east of Healdsburg and 3.5 miles upstream from Dry Creek. Datum 

of jage is 76.84 feet above mean sea level, datum of 1929 (levels by Corps of Engineers) .

Drainage area. 791 square miles.

Hecoras available. December 1939 to September 1950.

Average aiscnarge. 10 years,, 1,216 second-feet.

Extremes. --maximum discharge during year,. 23,400 second-feet Feb. 4 (gage height, 15.27 

ieet); minimum, 37 second-feet July 1, 2, 3.

1939-50: Maximum discharge, 67,000 second-feet Feb. 28, 1940 (gage height, 30.0 

feet), from rating curve extended above 50,000 second-feet: minimum, 27 second-feet 

June 25, 1949.

Flood of December 1937 reached a stage of 30.8 feet, from floodmarks.

Remarks.--Records good. Several small diversions above station for irrigation. Flow also 

arrected' by diversion into basin; see "Remarks" for East Fork Russian River near 

Calpellal

Revisions. W 1041: Drainage area.

Rating tables, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Jan. 14 Jan. 15 to Sept. 30

1.4 102 2.6 540 6.0 3,730 0.8 33 2.0 284 6.0 3,520 

1.5 120 3.0 810 7.0 5,100 .9 41 2.3 394' 7.0 4,910 

1.7 164 3.6 1,250 8.0 6,650 1.0 50 2.6 555 8.0 6,610 

2.0 24S 4.0 1,580 1.2 72 3.0 S20 9.0 8,420 

2.3 370 5.0 2,570 1.4 10S 3.5 1,170 11.0 12,400 

1.6 160 4.0 1,570 12.6 16.100 

1.8 220 5.0 3,450

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

107 

107 

109 

115 

115

113 

115 

115 

111 

115

120 

124 

126 

124 

124

126 

130 

133 

135 

139

141 

143 

146 

146 

146

148 

148

146 

143 

126 

113

Nov.

109 

116 

122 

130 

137

141 

150 

159 

176 

202

232 

232

216 

208

205J

211 

211 

216 

216 

216

216 

219 

219 

219 

219

216 

219 

222 

222 

222

Dec.

222 

226 

226 

226 

229

232 

242 

255 

255 

248

242 

238 

238 

242 

248

255 

280 

361

414 

356

316 

296 

284 

277 

273

266 

262 

262 

262 

259 

255

Jan.

255 

255 

252 

252 

252

252 

259 

619 

691 

1,760

3,360 

1,540 

1,180 

6,620 

2,660

2,610 

8,050 

8,000 

4,100 

2,400

2,300 

4,380 

2,850 

2,740 

2,080

1,620 

1,590 

3,710 

2,590 

1,390 

1,590

Feb.

1,360 

1,190 

1,180 

16,000 

14,200

14,700 

7,7SO 

4,520 

3,290 

3,290

3,710 

2,700 

2,260 

1,960 

1,750

1,660 

1,670 

1,470 

1,340 

1,230

1,130 

1,070 

1,010 

946 

855

737 

672 

614

Month

Octo 

Nove 

Dece

Ca

janu 

Fetor 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-5O .......................

Mar.

568 

531 

490 

462 

462

507 

525 

468 

446 

446

446 

451 

431 

40S 

390

375 

403 

988 

1,380 

3,010

1,750 

1,820 

2,040 

8,420 

6,130

3,600 

2,780 

2,150 

1,770 

1,530 

1,320

Apr.

1,160 

1,040 

939 

862 

806

925 

1,090 

2,000 

1,920 

1,470

1,230 

1,100 

1,050 

1-,010 

1,060

1,030 

9S1 

946 

911 

869

827 

792 

764 

737 

724

704 

672 

652 

626 

607

Secondfoot-days

3,949 

5,798 

8,247

338,818

72,907 

94,Z& 

"4" 8^37! 

"297504 

15,226 

4,290 

3,369 

3,050 

4,535

291,666

May

614 

711 

792 

744 

672

640 

614 

594 

574 

562

543 

525

513 

501 

484

484 

473 

451 

440 

435

435 

435 

426 

390 

375

364 

334 

306

274 

264 

257

Maximum

148 

232 

414

19,300

8,050 

16,000 8,420' 

2,000 

792 

241 

187 

108 

199

16,000

June

241 

229 

220 

214 

193

196 

193 

184 

187 

190

190 

178 

169 

160 

149

141 

141 

138 

130 

123

110 

98 

86 

78 

67

65 

60 

65 

52 

43

July

39 

38 

41 

67 

83

141 

146 

110 

136 

175

187 

178 

146 

128 

118

110 

113 

116 

US 138'

106 

100 

93 

100 

106

104 

96 

94 

92 

90 

92

Minimum

107 

109 

222

52

252 

614 

375 

607 

257 

43 

38 

88 

77

38

Aug.

96 

92 

98 

100 

100

100' 

104 

106 

104 

104

104 

106 

108 

108 

106

106 

104 

104 

104

as

94 

92 

88 

88 

90

90 

94 

94 

90 

88 

90

Mean

127 

193 

266

928

2y35Z ' 

SISST 

1,500 

983 

491 

143 

109 

98.4 

151

799

Sept.

92 

92 

85 

77 

82

86

96 

106 

108 

118

158 

155 

160 

ISO 

160

163 

172 

175 

187 

193

193

190 

193 

196 

181

187 

193 

199 

199 

199

Runoff In 

acre-feet

7,830 

11,500 

16,360

672,100

144,600 

187,000 

92,290 

58,520 

30,200 

8,510 

6,680 

6,050 

9,000

578,500

Peak discharge (base, 19,000 aee.-ft.). Feb. 4 (5 p.m.) 23,400 sec.-ft.
410 RUSSIAN RIVER BASIN

Russian River at Guerneville, Calif.

Loc atiop. . - -Wire -we ight gage , lat. 38 0 30'03", long. 122°59'36", in NWi sec. 32, T. 8 N., 

k. lO W., at highway bridge in Guerneville, 6.5 miles upstream from Austin Creek. 

Datum of gage is 8.67 feet above mean sea level, datum of 1929. Temporary water-stage 

recorder, at site 4 miles upstream, used Oct. 1 to Dec. 12, Apr. 25 to Sept. 30.

Drainage area. 1,346 square miles.

Records available.- December 1939 to September 1950.

Average discharge. 10 years (1940-50), 1,926 second-feet.

Extremes . Maximum discharge during year, 44,900 second-feet Feb. 5 (gage height, 30.79 

reet) , minimum, 57 second-feet July 6.

1939-50: Maximum discharge, 88,400 second-feet Feb. 28, 1940 (gage height, 46.87 

feet); minimum, that of July 6, 1950.

Remarks . Records good except those for Dec. 13 to Apr. 24, which are fair. Wire-weight 

gage read twice daily with additional readings during 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.

Revisions . W 1041: Drainage area.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26

27 

88 

29 

30 

31

Oct.

106 

108 

110 

114 

115

114 

114 

115 

115 

115

115 

118 

124 

126 

128

125 

125 

125 

128 

, 135

137 

140 

143 

143 

145

147 

146 

148 

145 

145 

143

Nov.

126 

122 

124 

130 

136

141 

150 

156 

181 

233

224 

241 

243 

228 

222

219 

222 

235 

259 

243

239

237 

237 

237 

237

233 

233 

235

235 

237

Dec.

235 

237 

239 

239 

245

249 

264 

288 

295 

288

272 

264 

262 

280 

300

320 

440 

580 

870 

960

770 

630 

560 

490 

440

420 

390 

360 

370 

360 

350

Jan.

340 

320 

310 

320 

320

300 

330 

670 

1,850 

970

4,190 

2,590 

1,760 

7,930 

6,250

3,810 

11,400 

15,100 

9,410 

4,990

3,700 

7,130 

5,370 

4,430 

3,330

2,390 

2,210 

8,260 

6,430 

3,980 

2,780

Feb.

2,050 

1,560 

1,520 

25,300 

38,300

30,500 

17,200 

9,600 

6,740 

5,890

6,280 

4,940 

4,130 

3,540 

3,080

2,750 

2,690 

2,320 

2,040 

1,860

1,670 

1,500 

1,400 

1,280 

1,190

1,030 

950 

878

Month

Goto 

Hove

Decei

Ca

Janu 

Pebr 

Marc 

Aprl

Mair

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

822 

748 

706 

657 

650

664 

699 

638 

614 

626

620 

590 

572 

542 

518

482 

482 

646

1,230 

3,650

2,680 

2,200 

3,000 

9,110 

10,400

' 6,510 

4,860 

3,790 

3,050 

2,510 

2,110

Apr.

1,300 

1,540 

1,360 

1,230 

1,140

1,190 

1,300 

2,460 

2,920 

2,310

1,860 

1,600 

1,480 

1,370 

1,370

1,350 

1,290 

1,230 

1,160 

1,100

1,040 

998 

950 

918 

882

877 

846 

805 

773 

737

Secondfoot-days

3,957 

6,195 

12,267

523,272

123,200 

182,188 

66,576 

39,886 

16,963 

4,693 

3,339 

3,259 

4,697

467,220

May

729 

823 

922 

922 

814

753 

718 

690 

669 

652

627 

606 

582 

568 

572

526 

464 

498

479 

470

461 

434 

397 

392 

379

374 

331 

307 

287 

266 

251

Maximum

148 

259 

960

34,800

15,100 

38,300 

10,400 

2,920 

9B2 

238 

154 

117 

199

38,300!

June

238 

226 

217 

214 

207

196 

192 

190 

182 

183

186 

182 

175 

168 

166

159 

149 

150 

147 

143

137 

127 

118 

111 

102

96 

92 

86 

79 

75

July

70 

67 

64 

61 

67

72 

115 

124 

113 

125

143 

154 

150 

135 

125

120 

115 

114 

116 

113

110 

109 

107 

105 

105

110 

110 

107 

105 

104 

104

Minimum

106 

122 

235

65

300 

878 

482 

737 

251 

75 

61 

95 

94

61

Aug.

104 

105 

103 

105 

108

108 

110 

111 

111 

110

110 

110 

114 

117 

116

112 

108 

104 

106 

106

103 

101 

99 

97 

97

97 

97 

99 

99 

97 

95

Mean

128 

206 

396

1,434

3,974 

6,507 

2,148 

1,330 

547 

156 

108 

105 

157

1,280

Sept.

96 

99 

99 

98 

94

99 

107 

116 

122 

129

138 

152 

165 

163 

166

170 

180 

184 

184 

190

193 

194 

194 

196 

199

192 

193 

193 

196 

196

Runoff in 

acre-feet

7,850 

12,290 

24,330

1,038,000

244,400 

361,400 

132,100 

79,110 

33,650 

9,310 

6,620 

6,460 

9,320

926.800
RUSSIAN RIVER BASIH 411

East Pork Russian River near Calpella, Calif.

Location. Water-stage recorder, lat. 39°15', long. 123°09', in sec. 13, T. 16 H., R. 12 

w., i 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 1950.

Extremes. Maximum discharge during year, 4,190 .second-feet Feb. 4 (gage height, 9.24 

reet); minimum, 16 second-feet June 28.

1941-50: Maximum discharge, 11,200 second-feet Jan. 2J., 1943 (gage height, 13.67 

feet), from rating curve extended above 5,000 second-feet by logarithmic plotting; minimum, 7 second-feet Dec. 13, 1943.

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

Flow greatly affected by diversion from Eel River through Potter Valley powerhouse 

(see p.418). Small diversions above station for irrigation.

Revisions. W 1041: Drainage area.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

0.6 20 1.3 50 3.5 384 

.7 23 1.5 63 4.0 530 

.8 26 1.7 78 4.5 7OO 

.9 30 2.0 104 5.0 905 

1.0 34 2.3 136 5.6 1,190 

1.1 39 2.6 178 6.3 1,570 

1.2 44 3.0 258 7.2 2,160

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

126 

143 

132 

137 

141

128 

127 

134 

141 

159

140 

137 

142 

134 

149

149 

152 

154 

151 

152

152 

146 

144 

151 

148

143 

146 

72 

80 

95 

146

Nov.

126 

151 

148 

148 

151

138 

151 

154 

196 

245

206 

a200 

a£00 

a210 

8218

8218 

217 

217 

215 

215

215 

213 

213 

211 

211

215 

217 

217 

215 

215

Dec.

213 

213 

206 

213 

221

217 

228 

221 

219 

215

217 

217 

219 

219 

219

221 

245 

236 

230 

321

221 

221 

219 

215 

215

219 

219 

219 

219 

219 

217

Jan.

213 

219 

219 

219 

219

219 

221 

292 

260 

876

446 

353 

624 

998 

329

1,260 

1,850 

1,040 

485 

371

1,130 

592 

623 

455 

363

319 

740 

672 

432 

376 

335

Feb.

306 

289 

646 

2,140 

1,030

1,440 

648 

488 

434 

875

524 

434 

387 

358 

337

384 

340 

316 

299 

292

284 

277 

270 

133 

57

52 

46 

44

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Nav

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

42 

40 

38 

38 

53

49 

41 

39 

42 

40

40 

36 

34 

33 

32

32 

283 

154 

866 

275

192 

387 

1,160 

1,380 

545

345 

240 

180 

143 

123 

105

Apr.

94 

85 

78 

72 

71

84 

132 

28O 

146 

107

94 

93 

194 

392 

392

381 

379 

374 

371 

366

366 

361 

356 

358 

355

342 

340 

332 

324 

319

Secondfoot-days

4,251 

5,666 

6,813

86,342

16,750 

13i,130 

7,007 

7,640 

6,629 

2,052 

4,649 

4,085 

5,811

86,663

May

387 

390 

371 

355 

350

350 

348 

345 

342 

352

319 

319 

306 

304 

311

306 

292 

292 

287 

319

322 

267 

194 

,228 

192

157 

126 

127 

142 

126 

122

Maximum

159 

245 

.245

1,570

1,850 

2,140 

1,380 

392 

390 

135 

260 

148 

247

2,140

June

115 

122 

103 

108 

124

116 

91 

135 

114 

62

90 

84 

60 

56 

70

64 

66 

65 

46 

25

27 

26 

25 

24 

30

27 

27 

21 

25 

104

July

MinlBum

72 

126 

206

24

213 

44

32

71 

122 

21 _asj

113 

107

21

Peak discharge (base, 3,300 sec. -ft.) .-- Jan. 13 (11:30 p.n.) 3,710 sec. -ft.]

sec. -ft. j Har. 23 (7 p.«.) 3,"520" sec. -ft.

125 

130 

170 

260 

230

95 

210 

245 

231 

242

131 

134 

134 

122 

123

132 

130 

132 

130 

124

131 

141 

144 

.131 

123

123 

121 

123 

134 

113 

135

Aug.

133 

130 

127 

134 

124

132 

139 

129 

133 

145

148 

127 

136 

147 

136

148 

140 

137 

113 

116

128 

127 

130 

126 

135

122 

122 

127 

128 

133 

133

Mean

137 

196 

220

237

540 

469 

226 

255 

278 

68.4 

150 

132 

194

837

Sept.

134 

107 

134 

129 

161

139 

142 

158 

183 

206

213

192 

196 

189 

196

192 

219 

245 

221 

215

211 

213 

191 

198 

228

243 

234 

2300 

245 

247

Runoff In 

acra-feet

8,430 

11,640 

13,510

171,300

33,220

26,040 

13,9OO 

15,150 

17,120 

4,070 

9,220 

3,100 

11,530

171,900

Feb. 4 (2 a.m.) 4,190

a No gage-height record] discharge computed on basis of recorded range In stage and ,reeobds for 

Russian River near Hopland.
412 RUSSIAN RIVER BASIN

Dry Creek near Clover-dale, Calif.

Location. Water-stage recorder, lat. 38°45', long. 123°05', In sec. 4, T. 10 N., R. 11

w., t>uO 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. 

Kecorgs available. November 1941 to September 1950. 

extremes. Maximum discharge during year, 4,370 second-feet Feb. 3 (gage height, 7.81

reet); minimum, 0.1 second-foot Oct. 1-12.

1941-50: 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, 30, Oct. 1-6,

1944, Sept. 24 to Oct. 12, 1949.

Flood of December 1937 reached a stage of about 18 feet (from floodraarks). 

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

No~storage or diversion above station. 

Revisions.~W 1041: Drainage area.

Rating tables, water year 1949-50 (gage height, In feet,

and discharge, in second-feet)

(Shifting-control method used Oct. 1 to Hov. 9,

Dec. 8-17, Mar. 19-23)

Oct. 1 to 'Jan. 13 Jan. 14 to Sept. 30

1.75 0.1 2.2 27 2.7 150 1.55 0.2 2.2 2S 3.1 300 

l.S .4 2.3 41 3.0 320 1.6 .4 2.3 42 3,6 610 

1.9 2.9 2.4 58 3.4 570 1.7 1.0 2.4 5S 4.5 1,280 

2.0 7.4 2.5 80 1.8 2.1 2.5 77. 5.5 2,100 

2.1 15 2.6 110 1.9 4.3 2.6 100 6.5 3,000 

2.0 8.4 2.7 128 

2.1 16 2.9 203

Discharge, in second-feet, Mater year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.3 

.3 

.3

.6 

.4 

.3 

.3 

.4

.4 

.4 

.4 

.4

.7

.9 

.9 

1.2 

1.2

1.4 

1.4

Nov.

1.7 

1.7 

2.3 

2.9 

2.9

3.2 

4.0 

4.0 

13 

14

9.4 

5.8 

4.0 

3.6 

3.2

2.9 

2.9 

2.6 

2.6 

2.6

2.6 

2.9 

2.9 

3.2 

3.2

3.2 

3.2 

3.2 

3.2 

3.2

Dec.

3.6 

3.6 

3.6 

4.0 

5.3

4.S 

S.4 

10 

6.3 

4.S

4.0 

4.0 

3.6 

4.0 

7.4

6.S 

30 

44

36 

17

13 

10 

8.0 

7.4 

6.S

5.8 

5.S 

5.8 

5.3 

5.3 

5.3

Jan.

5.3 

5.3 

4.8 

4.S 

4.S

4.S 

S.6 

278 

71 

521

242 

122 

400 

83S 

191

519 

S50 

4S6 

258 

171

493 

372 

274

a210 

a!60

al20 

a420 

a330 

a260 

a200 

alSO

Feb.

a!20 

a90 

al,600 

a3,000 

al,600

1,650 

743 

506 

390 

444

330 

264 

216 

187 

163

179 

146 

125 

111 

100

93 

86 

82 

75 

71

6S 

64 

62

Month

Octo 

Hove) 

Decei

Ca 

janu

Pftbtf

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

 her. ...................................

ri»er. ...........----.-----....--------.-

lendar year 1949 

Btrr

ter year 1949-50 .......................

Mar.

5S 

55 

53 

52 

66

62 

53 

52 

56 

53

55 

48 

47 

45 

42

42 

71 

64 

300 

171

122 

195 

504 

757 

450

318 

248 

203 

175 

149 

128

Apr.

Ill 

103 

93 

S6 

S8

93 

135 

195 

13S 

111

98 

95 

88 

82 

75

69

66 

62 

56 

55

52 48' 

47 

45 

44

42 

39 

3S 

36 

35

Secondfoot -days

13.4 

120.1 

289.7

41,569.6

7,974.4 

12,565 

4,694 

2,325 

710.8 

238.8 

59.8 

18.0 

6.4

29,015.4

Peak discharge (base, 3,050 sec. -ft.}. Feb. 3 (about

May

45 

4S 

47 

38 

34

32 

31 

29 

27 

26

£6 

24 

22 

22 

22

21 

20 

20 

18 

17

16 

15 

a!5

a!4

al4

a!3 

a!2 

a!2 

all 

. aio 

a9.8

Maxlmui

1.4 

14 

44

3,050

850 

3,000 

757 

195 

4S 

11 

3.5 

.9 

.3

3,000

June

a9.6 

a9.4 

a9.2 

a9.0 

a8.8

as. 6

S.4 

9.0 

9.0 

10

11 

11 

10 

9.0, 

9.0

9.6 

9.6 

9.0 

8.0 

7.4

6.6 

6.1 

6.1 

5.7 

5.7

5.7 

5.3 

5.0 

4.3 

3.7

July

3.5 

3.2 

3.0 

3.0 

3.0

3.0 

2.8 

2.S 

2.4 

2.0

2.1

2.0, 

2.0 

l.S 

1.7

1.6 

1.8 

1.8 

1.8 

1.7

1.5 

1.4 

1.3 

1.3 

1.2

1.2 

1.1 

1.0 

1.0 

.9 

.9

Aug.

0.9 

.9 

.9 

.S 

.S

.7 

.7 

.7 

.7 

.7

.7 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.5

.5

is

.3 

.3

Sept.

0.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

,.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

 "*- Kean £re-«4?

0.1 0.43 . 27 

1.7 4.00 258 

3.6 9.35 575

.1 114 S2,460

4.8 257 15,820 

62 449 24,920 

42 151 9,310 

35 77.5 4,S10 

9.8 22.9 1,410 

3.7 7.96 474 

.9 1.93 119 

.3 .58 36 

.2 .21 13

.1 79.5 57,550

12 p.m.) 4,370 sec. -ft.; Feb. 5 (11:30 p.m.)

'5,6001 see. -ft. 

sTSo gage-height record; discharge conputed on basis of records for Russian River near Healdsburg.
RUSSIAN RIVER BASIN 413

Laguna de Santa Rosa near Graton, Calif.

Location. Water-stage recorder, lat. 38°27', long. 122°50', in sec. 14, T. 7 N.J R. 9 W., 

in moiinos land grant, 0.2 mile dovmstream from Santa Rosa Creek and 2 miles northeast 

of Graton, Sonoma County. Datum of gage is 40.00 feet above mean sea level (Corps of 

Engineers reference mark); gage readings have been reduced to elevations above mean sea 

level.

'Records available. February 1940 to September 1950.

Extremes. Maximum elevation during year, 63.2 feet Feb. 4.

 1340-50: 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 

Creek, Mark West Creek, and other smaller creeks with Russian River. During floods 

direction of flow may be either to or from Russian River and the laguna acts as a natural regulator of floods on lower Russian River. Records show elevation at 12'p.m.

Gage height, In feet, water year October 1949 to September 195O

Day

1

2

3

4

5

.6

7

8

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.

52.3

52-. 3

52.3

52.3

52.3

52.4

52.9

52.6

52.5

52.5

52.5

52.5

52.5

52.5

52.5

52.5

52.7

52.7

52.7

52.6

52.6

52.6

52.6

52.6

52.6

52.6

52.6

52.6

52.6

52.6

52.6

Jan.

52.6

52.6

52.6

52.6

52.6

52.6

52.7

52.8

52.7

54.1

53.5

53.1

53.4

55.3

54.4

56.7

59.6

58.5

56.4

55.0

55.6

55.9

55.2

54.6

54.0

53.7

56.0

58.0

56.2

54.9

54.1

Feb.

53.8

53.5

54.1

63.2

61.3

59. S

57.4

55.7

54.8

54.8

54.6

54.1

53.8

53.6

53.5

53.5

53.5

53.5

53.4

53.4

53.3

53.3

53.2

53.2

53.2

53.2

53.1

53.1

_

_

-

Mar.

53.1

53. 1'

53.1

53.0

53.0

53.0

53.0

53.0

53.1

53.1

53.0

53.0

53.0

53.0

53.0

53.0

53. Q

53.0

53.5

53.2

53.2

53.4

54.1

56.3

55.6

54.8

54.3

53.8

53.6

53.5

53.4

Apr.

53.3

53.3

53.2

53.2

53.2

53.2

53.6

53.4

53.3

53.3

53.3

53.3

53.2

53.2

53.1

53.1

53.1

53.1

53.0

53. 0

53.0

53.0

53.0

53.0

53.0

52.9

52.9

52.9

52.9

52.9

-

May

52.9

52.9

52.9

52.9

52.9

52.9

52. S

52.8

52.8

52.8

52. S

52.8

52.8

52.8

52.8

52.7

52.7

52.7

52.7

52.7

52.7

52.7

52.7

52.7

52.7

52.7

52.6

52.6

52.6

52.6

52.6

June

52.6

52.6

52.6

52.6

52.6

52.6

52.5

52.5

52.5

52.5

52.5

52.5

52.5

52.5

52.5

52.5

52.5

52.4

52.3

_

_

_

_

-

_

_

_

_

_

-

July ' Aug. Sept.
414 EEL RIVER BASIN

Lake Pillsbury at Hullville, Calif.

Loc^1°S-":^a^er"gta?e recorder, lat. 39°24', long. 122°5?i, on line between sees. 14 and 

23, T. 18 N., R. 10 W.., at Scott Dam on Eel River, at Hullville, 0.3 mile downstream 

from Rice Pork. Datum of gage ±s at mean sea level. Prior to Jan. 26, 1950, staff 

gage at same site and datum.

Drainage area. 288 square miles.

Kec?^ afaTIable. October 1922 to September 1950 (gage heights only prior to October 

I92o/,

Extremes.--Maximum contents during year, 94,200 acre-feet Apr. 29, 30, May 6-8 (elevation 

179X0.2 feet); minimum observed, 30,800 acre-feet Jan. 14 (elevation, 1,874.2 feet)

1922-50: Maximum contents, 95,600 acre-feet May 13, 16, 1925 (elevation, 1 910 8 

feet); minimum, 10 acre-feet Dec. 9, 10, 1931 (elevation, 1,822.5 feet)

Remarks.--Reservoir is formed by concrete overflow type dam; storage began in December 

^F-I n?Sp2c ity> ?3 » 700 acre-feet between elevations 1,822.4 feet (sill of outlet gate) 

and 1,910.0 feet (top of spillway gates) above mean sea level. Water is released down 

Eel River to Van Arsdale Reservoir, from which it is diverted through tunnel to Potter 

valley powerhouse; part is then used for irrigation and remainder flows into' East Fork 

Russian River. Records show contents available for release. Recorder records show 

contents at 12 p.m. when water level is above spillway elevation; staff-gage readings 

made periodically during remainder of year show contents at odd times.

cooperation. Gage-height record, furnished by Pacific Gas & Electric Co., obtained in 

connection with a Federal Power Commission project.

Contents, In aore-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

30

31

Oct.

-

-

61,100

60,800

60,400

60,100

59,900

-

58,600

58,400

58,100

57,700

57,600

-

56,500

56,200

55,800

55,500

55,300

-

-

54,400

54,100

53',SOO

i 53,400

53,200

 

-

52,600

NOT.

52,400

52,100

51,700

51,600

-

_

50,800

50,400

50,300

50,800

50,800

-

-

49,900

49,600

49,300

48,800

48,300

-

-

47,100

46,800

46,300

-

45,500

_

-

44,500

44,000

43,600

-

Dec.

43,100

42,700

-

-

41,600

41,200

40,300

40,600

40,300

-

_

39,100

38,700

38,100

33,100

37,700

-

-

37,000

36,700

36,500

36,100

_

-

-

_

34,100

33,900

33,500

33,100

832,700

Jan.

_

-

31,5OO

-

30,900

_

-

-

-

-

_

-

_

30,800

-

_

34,500

-

-

47,900

_

_

65,800

72,400

-

72,700

72,700

72,700

72,400

72,400

72,200

Feb.

72,000

72,700

73,300

75,500

76,700

76,100

74,700

74,100

73,900

74,700

74,300

73,900

73,700

73,700

73,700

73,700

73,700

73,500

73,500

73,500

73,300

73,300

73,300

73,500

73,500

73,500

73,500

73,500

_

_ .

-

Mar.

73,300

73,300

73,700

73,900

74,300

74,500

75,300

76,100

76,900

77,800

73,400

79,000

79,500

79,900

80,300

31,000

82,000

80,300

81,800

81,000

80,100

80.70O

81,000

82,500

81,600

80,500

80,100

80,700

81,400

81,600

81,800

Apr.

81,800

81,800

82,000

83,100

84,200

85,300

87,300

88,000

88,200

88,200

33,000

87,800

87,800

87.50O

87,300

86,900

86,600

87,3OO

88,000

89,100

90,000

90,700

91,400

92,100

92,600

93,000

93,5OO

94,000

94,200

94,200

May

93,700

93,300

93,500

93,700

94,000

94,200

94,200

94,200

94,000

93,700

93,500

93,700

93,700

94,000

94,000

94,000

94,000

94,000

94,000

94,000

93,700

93,700

93,700

93,700

93,700

93,700

93,700

93,700

93,700

93,700

93,700

June

93,700

93,700

93,700

93,500

93,500

93,500

93,300

93,300

93,300

93,300

93,300

93,500

93,500

93,700

93,700

94,000

94,000

94,000

94,000

94,000

94,000

-94,000

93,700

93,700

93,700

93,700

93,700

93,700

93,500

93,300

July

93,000

92,600

92,300

91,600

91,400

90,900

90,500

90,000

39,300

88,700

88,400

88,200

38,000

87,500

87,100

86,900

86,400

36,000

85,800

85,300

85,100

84,600

84,200

84,000

83,600

83,300

82,900

82,500

82,000

81,800

81,400

Aug.

81,20O

80,70O

80,300

79,900

79,500

79,300

78,800

78^600

78,200

77,800

77,600

77,200

76,700

76,500

76,100

75,700

75,500

_

-

74,300

_

_

-

_

_

_

_

71,100

a70,700

Sept.

_

_

_

68,500

_

67,300

-

65,600

64,500

-

_

65,200

62,200

-

_

_

_

_

-

59,200

57,700

57,200

056,700

a Contents Interpolated.

Monthly elevation and contents, water year October 1949 to September 1950

Date

Dec. '31.....................

Sept. 30.....................

Elevation 

(feet)

-

1 910 2

.

 Contents 

(acre-feet)

32,700

-

70,700

56,700

Change In contents 

during month 

(-acre-feet)

_

-9,000

-10,900

-22,400

-10,700

-14,000

-5,200
EEL RIVER BASIN 415

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.

Records available. November 1922 to September 1950.

Average discharge. 27 years (1923-50), 456 second-feet.

Extremes. Maximum discharge during year, 6,860 second-feet Feb. 6 (gage height, 11.10 

reet), from rating curve extended above 1,900 second-feet on basis of computed flow 

over Scott Dam at various stages; minimum daily, 42 second-feet Jan. 18-23, Mar. 8-16.

1922-50: Maximum discharge, 38,000 second-feet Dec. 11, 1937 (gage height, 22.9 

feet, from floodmarks), from rating curve extended above 3,000 second-feet on basis of 

computed flow over Scott Dam; practically no flow at times.

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

Plow regulated by Lake Pillsbury (see preceding page). No diversion above station.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, vater year 1949-50 (gage height. In feet, 

and discharge, in aeeond-feet)

2.6 42 3.7 242 5.5 950 6.0 2,860 

2.S 65 4.0 322 6.0 1,250 8.5 3,370 

3.0 94 4.4 445 6.5 1,600 9.0 3,930 

3.2 130 4.7 560 7.0 1,980 10.4 5,780 

3.4 171 5.0 690 7.5 2,4OO

DlscMrge, In second- feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

150 

150 

150 

150 

150

150 

150 

150 

150 

150

150 

150 

148 

152 

152

152 

152 

152

14S 

146 

146 

144 

146

142 

al25 

alOS 

alOO 

alOO 

allO

Nov.

140 

144 

144 

142 

140

142 

146 

148 

156 

148

167 

176 

1S5 

208 

216

225 

223 

223 

220 

220

218 

213 

213 

213 

213

216 

216 

216 

216 

213

Dec.

213 

213 

213 

213 

213

211 

201 

208 

208 

208

211 

216 

218 

213 

211

211 

208 

196 

173 

196

206 

208 

211 

211 

211

208

211 

213 

a213 

a213 

a213

Jan.

a2l3 

a213 

213 

211 

213

213 

213 

220 

220 

223

220 

220 

223 

22S 

1S9

154 

109 

a42 

a42 

a42

a42 

a42 

a42

174 

S35

775 

705 

745 

658 

520 

414

Feb.

339 

291 

319 

2,390 

3,700

5,680 

2,860 

1,700 

1,200 

1,790

1,920 

1,380 

1,120 

974 

944

1,040

1,110 

974 

875 

805

720

672 

668 

700 

785

800 

790

780

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ma

mber . ... .. .. ........

lendar year 194J

h................................ ........

ter year 1949-50 .......................

Mar.

715 

600 

434 

43S 

576

4S6 

a!80 

a42 

a42 

a42

a42 

a42 

h42 

a42 

a42

a42 

al,040 

2,150 

2,170 

2,360

1,970 

2,000 

1,990 

2,5201 

2,590

2,130 

1,490 

796 

822 

812 

992

Apr.

998 

1,000 

791 

202 

176

185 

456 

1,000 

1,020 

1,010

1,010 

1,000 

1,000 

99S 

980

968

799 

399 

225

1 232

237 

240 

240 

242 

242

£42

842 

247 

265 

289

Secondfoot-days

4.422 

5,660

6,472

124,112

5,573 

37,326 

29,439 

16,935 

9,516 

2,367 

5,939 

5,272 

6,678

139,149

May

746 

816 

371 

252 

268

294 

311 

322 

445 

420

380 

294 

263 

268 

276

289 

297 

297 

291 

289

286 

273 

268 

245 

220

182 

187 

169 

171 

173 

173

Maxima

152 

225

21S

5,230

835 

5,680 

2,590 

1,020 

816 

206 

297 

176 

255

5,680

June

171 

171 

169 

167 

138

126 

144 

206 

140 

890

a80

365 

a60 

a60 

a80

a60 

a60 

a60 

a60 

a60

a58 

h58 

a54 

a54 

aSO

h46 

a48 

a46 

126 

182

July

180 

180 

250 

297 

1S5

183 

294 

294 

294 

237

158 

158 

165 

176 

176

176 

176 

173 

173 

173

173 

173 

173 

173 

173

171 

171 

171 

171 

171 

171

Aug.

171 

171 

173 

173 

17S

176 

176 

176 

173 

173

173 

173 

171 

171 

171

169

167 

167 

167 

165

167 

169 

169 

167 

167

167 

167 

167 

167 

167 

169

S«pt.

169 

169 

169 

171 

173

173 

176 

208 

250 

250

250

245 

242 

232 

228

232 

235 

245 

235 

230

225 

225 

223 

223

237

225 

252 

252 

252 

252

« *»» ?S5£

100 143 8,770 

140 189 11,230 

173 209 12,840

42 340 246,200

42 277 17,000 

291 1,333 74,040 

42 950 58,390 

US 564 33,590 

167 307 18,870 

46 95.6 5,690 

158 193 11,860 

165 170 10,480 

169 223 13,250

42 381 276,000

a No gage-height record; discharge computed on baala of record of flaw through needle valve, 

h Computed from staff-gage reading.
416 EEL RIVER BASIN

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

Location.--Water-stage recorder, lat. 39°23', long. 123°07', in NE£ sec. 30, T. 18 N., R. 

11 w., 500 feet downstream from Van Arsdale Dam and 5 miles north of town of Potter 

Valley. Altitude of gage, about 1,400 feet (from topographic map).

Drainage area. 347 square miles.

Records available. October 1927 to September 1950. November 1909 to September 1922

(combined monthly discharge only, of Eel River at this station and Snow Mountain Water 

& Power Co.'s tailrace near Potter Valley) and October 1922 to September 1927 from records of spill over dam.

Average discharge.--27 years (1922-26, 1927-50), 519 second-feet, combined flow of Eel 

Kiver at van Arsdale Dam and Politer Valley powerhouse tailrace.

Extremes.--Maximum discharge during year, 7,430 second-feet Feb. 6 (gage height, 13.92 

reet); minimum, 0.1 second-foot Nov. 14.

1909-50: Maximum discharge, about 40,000 second-feet Mar. 26, 1928 (gage height, 

27.0 feet), from rating curve extended above 1,500 second-feet on basis of computed flow 

over Van Arsdale Dam; maximum gage height, 30.9 feet Dec. 11, 1937; no flow Nov. 1, 1945.

Remarks. Records good. Water is diverted from Van Arsdale Reservoir through tunnel to 

totter Valley powerhouse (see p. 418),after which part is used for irrigation and 

remainder flows into East Pork Russian River. Records given herein show only flow 

passing dam down Eel River.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, in seoond-feet, water year October 1949 to September 1950

 Day

2

3

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

26 

29 

30 

31

Oct.

4.8 

3.7 

3.3 

3.0

2.7 

2.7 

2.4 

2.4 

3-0

4.0 

3.7 

3.7 

3.3 

3.3

4.0 

4.0 

3.7 

2.4 

2.4

2.1 

3.0 

3.3 

3.0 

3.7

4.4 

3.7 

5.2 

6.1 

4.8 

2.7

Nov.

1.7 

1.3 

2.1

1.1

1.5 

1.7 

4.9 

15 

12

.9 

.7 

.4

1.2 

1.0

2.1 

5.2 

6.1 

7.4 

7.9

6.3 

3.7

3.0 

3.3 

3.0

2.7 

2.7 

3.7 

4.4 

2.7

Dec.

1.3 

2.8 

2.7 

3.7

4.0 

4.8 

4.0 

3.3 

2.7

1.9 

1.5 

3.3 

3.7 

4.4

4.8 

31 

48 

14 

3.0

2.7 

3.3 

4.0 

4.4 

5.2

5.2 

3.7 

4.0 

4.4 

5.2 

5.2

Jan.

6.6 

4.4 

3.0 

2.1

2.4 

3.0 

7.4 

9.7 

176

75 

29 

41 

259 

45

139 

926 

778 

218 

84

695 

460 

711 

382 

796

730 

622 

690 

591 

418 

281

Feb.

174 

120 

150 

2,100 

3,600

6,010 

2,960 

1,740 

1,220 

1,840

1,940 

1,390 

1,110 

932 

885

1,OOO 

1,050 

914 

805 

715

618 

560 

547 

750 

855

875 

355 

840

Month

Octo 

Hove

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

Itav

June 

July 

Augu 

Sept

Ha

lendar year 194

ter year 1949-50 .......................

Mar.

775 

681 

505 

461 

618

593 

266 

77 

76 

75

71 

63 

59 

57 

55

55 

861 

2,080 

2,330 

2,360

2,030 

2,160 

2,140 

2,990 

2,770

2,290 

1,800 

1,110 

865 

950 

1,130

Apr.

1,110 

1,090 

975 

325 

249

275 

520 

1,230 

1,210 

1,170

1,140 

1,120 

974 

800 

760

740 

614 

237 

30 

32

28' 

26 

23 

20

15

18 

15 

15 

17 

30

Secondfoot -days

109.3 

111.6 

194.1

80,845.3

9,191.6 

36,555 

32,353 

14,808 

1,846.8 

153.0 

172.1 

198.0 

122.4

95,814.9

May

338 

613 

191 

32 

30

38 

44 

45 

124

115

67 

41 

12 

13 

13

14 

20 

13 

5..0 

4.0

3.8 

3.3 

7.5 

8.6 

6.0

8.3 

7.5 

8.9 

7.8 

6.4 

6.7

Maximum

6.1 

15 

48

5,970

926 

6,010 

2,990 

1,230 

613 

7.2 

7.8 

9.2 

7.5

6,010

June

6.7 

5.2 

4.8 

5.2 

5.0

3.6 

2.9 

2.0 

2.9 

2.8

2.8 

3.6 

'4.2 

4.0 

4.0

4.2 

4.6 

5.2 

6.0 

6.7

7.0 

7.0 

7.0 

6.4 

6.4.

6.4 

6.4 

6.4 

6.4 

7.2

July

7.0 

6.4 

6.2 

5.2 

4.2

5.2 

4.8 

3.8 

3.4 

3.1

4.2 

3.1 

2.6 

2.9 

4.8

6.2 

6.4 

6.2 

6.2 

6.2

6.2 

6.7 

6.4 

7.0 

6.7

7.0 

6.4 

7.2 

6.4 

6.2 

7.8

Minimum

2.1 

.4 

1.3

.4

2.1 

120 

55 

15 

3.3 

2.0 

2.6 

3.8 

1.8

.4

Aug.

7.8 

7.5 

7.2 

6.2 

5.2

7.0 

9.2 

8.3 

7.5 

6.4

6.2 

4.8 

6.7 

8.6 

8.3

7.8 

7.0 

6.0 

4.4 

. 5.5

7.2 

6.7 

6.4 

5.7 

5.2

3.8 

5.2 

6.7 

5.5 

4.2 

3.8

Mean

3.53 

3.72 

6.26

221

297 

1,306 

1,044 

494 

59.6 

5.10 

5.55 

6.39 

4.08

263

Sept.

3.6 

1.8 

3.1 

4.4 

3.1

2.6 

4.2 

4.0 

2.8 

4.S

6.0 

6.4 

7.0 

7.5 

5.7

4.0 

4.2 

3.4 

4.2 

4.6

4.6 

4.2 

3.6 

4.0 

3.6

3.1 

3.1 

3.1 

3.1 

2.6

Runoff in 

acre-feet

217 

221 

385

160, 400'

18,230 

72,510 

64,170 

29,370 

3,660 

303 

341 

393 

243

190,000
EEL RIVER BASIN 

Eel River at Scotia, Calif.

417

Location. --Water-stage recorder, lat. 40 0 29', long. 124°06' , in sec. 7, T. 1 N. , R. IE., at

 bridge on U. S. Highway 101, 0.5 mile north of Scotia and 6 miles upstream from Van 

Duzen River. Datum of gage is 36.15 feet above mean sea level, datum of 1929.

Drainage area. 3,070 square miles.

Records available. --December 1910 to February 1915, October 1916 to September 1950.

Average discharge. --37 years (1911-14, 1916-50), 6,198 second-feet.

Extremes . Maximum discharge during year, 117,000 second-feet Jan. 18 (gage height, 32.85

 feet } ; minimum, 38 second-feet Oct. 2-6.

1910-15, 1916-50: Maximum discharge, 345,000 second-feet Dec. 11, 1937 (gage height, 

55.1 feet); maximum stage observed, 55.5 feet Feb. 2, 1915; minimum discharge observed, 

10 second- feet Aug. 12-14, 1924.

Remarks . Records good. Flow slightly regulated by Lake Pillsbury (see p. 414) and by 

diversion through Potter Valley powerhouse (see following page).

Revisions (water years). W 931: 1938.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet) '

Oct. 1 to Jan. 18 Jan. 19 to Sept. 30

9.1

9.5

9.9

10.2

10.5

38

214

411

589

830

10.8 1,160

11.5

12.3

13.7

15.2

17.0

20.0

2,190

3,710

7,020

11,200

17,700

30,900

24.0 52,000

28.0 79,000

31.5 105,000

8.7

8.8 

9.0 

9.2 

9.4

60

85

ISO

235

340

9.7 

10.0 

10.5 

11. O 

11.8

535

790

1,440

2,210

3,610

13.0

14.5

16.0

18.0

20.0

6,100

9,880

14,400

22,000

30,900

Note. Same aa preceding table above 20.0 

feetT"

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

42 

38 

38 

38 

38

38 

42 

46 

51 

106

133 

177 

196 

177 

133

120 

115 

115 

111 

111

111 

111 

111 

111 

111

106 

106 

111 

111 

115 

115

Nov.

115 

115 

115 

115 

115

115 

115 

128 

246 

787

3,510 

2,530 

1,390 

850 

632

508 

450 

406 

374 

358

343 

323 

313 

298 

289

279 

289 

313 

343 

318

Dec.

369 

400 

348 

328 

384

456 

532 

624 

639 

660

583 

508 

456 

422 

514

603 

904 

2,320 

4,990 

3,890

2,290 

1,550 

1,160 

996 

900

821 

749 

668 

617 

617 

617

Jan.

610 

632 

596 

564 

532

496 

566 

1,450 

2,220 

11,100

18,300 

9,620 

6,950 

28,000 

17,600

11,100 

42,600 

105,000 

51,900 

28,700

26,700 

39,800 

43,700 

45,200 

25,100

16,600 

13,800 

18,900 

15,200 

11,900 

10,100

Feb.

8,490 

7,350 

7,820 

43,000 

48,100

52,700 

40,400 

25,900 

18,300 

16,900

23,000 

17,100 

13,600 

11,700 

10,400

11,300 

13,600 

11,600 

10,200 

9,190

8,380 

7,660 

7,180 

6,960 

7,060

7,420 

7,200 

6,990

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Hare 

Apri 

Mav

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 194S 

ary

^ .......................

h. ......................................

ter year 1949-50 .......................

Mar.

6,750 

6,340 

5,970 

5,640 

6,100

8,590 

7,730 

6,460 

5,880 

5,970

5,920 

5,660 

5,180 

4,800 

4,560

4,44O 

16,400 

32,600 

39,300 

45,700

27,200 

27,600 

28,700 

40,500 

38,200

28,600 

23,300 

18,500 

14,900 

12,800 

11,400

Apr.

MM

Secondfoot -days

3,084 

16,082 

30,915

1,740,834

605,536 

459,500 

501,690 

252,480 

102,290 

28,363 

9,353 

4,023 

2,628

2,015,944

Peak discharge (baae, 61,000 sec. -ft.) . Jan. 18 (10 i

62,100 sec. -ft.

900 

200 

710

960 

920

850 

320 

800 

900 

900

300 

940 

500 

500 

740

850 

360 

970 

590 

130

080 

960 

530 

770 

260

940 

740 

600 

320 

940

May

4,040 

5,070 

6,920 

5,900 

4,740

4,280 

4,140 

3,780 

3,590 

3,460

3,520 

3,530 

3,440 

3,440 

3,440

3,440 

3,260 

3,190 

2,850 

2,640

2,540 

2,490 

2,470 

2,420 

2,260

2,130 

2,080 

1,990 

1,840 

1,740 

1,660

Maximum

196 

3,510 

4,990

115,000

105,000 

52,700 

45,700 

14,900 

6,920 

1,600 

514 

178 

109

105,000

June

1,600 

1,530 

1,440 

1,370 

1,260

1,160 

1,100 

1,030 

1,OOO 

965

965 

991 

1,020 

1,060 

1,040

991 

926 

913 

867 

812

752 

724 

695 

661 

636

610 

588 

572 

550 

535

July

514 

486 

465 

439 

420

400 

382 

364 

352 

340

324 

312 

307 

296 

290

285 

280 

270 

260 

250

240 

235 

230 

226 

217

208 

204 

199 

190 

186 

182

Aug.

178 

174 

166 

158 

154

154 

154 

146 

146 

146

146 

143 

143 

146 

143

140 

136 

132 

129 

122

115 

112 

109 

103 

97

94 

91 

88 

88 

85 

85

Minimum Mean

38 99.5 

115 536 

328 997

38 4,769

496 19,530 

6,960 16,410 

4,440 '16,180 

3,940 8,416 

1,660 3,300 

535 945 

182 302 

85 130 

80 87.6

38 5,523

urn.) 117,000 aec. -ft. j Feb. 4 (6

Sept.

85 

82 

82 

82 

80

80 

80 

80 

80 

80

80 

80 

80 

82 

82

82 

82 

82 

82 

85

85 

85 

91 

97 

106

109 

109 

109 

106 

103

Runoff in 

acre-feet

6,120 

31,900 

61,320

3,453,000

1,201,000 

911,400 

995,100 

500,800 

202,900 

56,260 

18,550 

7,980 

5,210

3,999,000

p.m.)
418 EEL RIVER BASIN

Potter Valley powerhouse tailrace near Potter Valley, Calif.

Location.--Water-stage recorder and Parshall flume, lat. 39°21', long. 123°07', in NWt 

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). Prior to Apr. 13, 1950, at site 50 feet upstream.

Records available.--October 1922 to September 1950. 

Average discharge.--28 years, 189 second-feet.

Extremes. Maximum daily discharge during year, 317 second-feet July 8; no flow Feb. 25 

to Apr. 12.

1922-50: Maximum daily discharge, 321 second-feet Aug. 26, 1933; no flow at times 

in several years.

Remarks. Records good. Water is diverted from Eel River above Van Arsdale Dam, after 

passing through powerhouse, part of it is used for irrigation in Potter Valley and 

remainder flows into East Fork Russian River. Water for irrigation diverted from tailrace is included in figures of discharge.

Cooperation.--Records of daily discharge Oct. 1 to Apr. 12 computed from powerhouse output, 

furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power 

Commission project.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

155 

155 

162 

162 

162

162 

162 

155 

155 

162

162 

161 

162 

162 

155

155 

162 

160 

162 

162

162

155 

155 

162 

162

162 

162 

81 

93 

94 

162

Nov.

155 

155

155 

161 

156

143 

160 

155 

187 

155

206 

206 

206 

210 

219

219 

219 

219 

219 

219

219 

219 

219 

219

219

219 

219 

219 

219 

219

Dec.

219

219 

210 

219 

221

220 

221 

220 

219 

219

219 

219 

219 

219

219

219 

219 

219 

219 

219

219 

219 

219 

219

216

219 

221 

221 

221 

221 

222

Jan.

216 

221 

221 

221 

222

222 

222 

222 

218 

219

219 

220 

219 

222 

222

222 

219 

219 

220 

220

222 

220 

219 

219 

219

219 

219 

219 

220 

220 

220

Feb.

220 

219 

218 

216 

208

218 

218

216 

218 

219

216 

218 

219 

218 

218

219 

219 

218 

218 

219

218 

218 

219 

55 

0

0 

0 o

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194E

ter year 1949-50 .......................

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

146 

266 

271

266 

268 

266 

269 

268

269 

269 

268 

269 

269

259 

259 

287 

305 

310

Secondfoot -days

4,745 

5,914 

6,794

66,385

6,822 

5,062 

0 

4,784 

8,234 

2,596 

6,182 

5,447 

6,713

63,293

May

308 

306 

306

305 

305

308 

308 

308 

304 

308

308 

308 

298 

294 

305

308 

308 

306 

306 

302

293 

268 

221 

244 

193

180 

144 

140 

149 

146 

147

Maximum

162 

219 

222

224

222 

220 

0 

310 

308 

180 

317 

201 

267

317

June

145 

148 

126 

124 

140

132 

122 

147 

121 

84

81 

71 

61 

53 

55

55 

55 

48 

57 

56

58 

57 

58 

61 

60

59 

58 

56 

68 

180

July

188 

188 

256 

312 

228

137 

309 

317 

292 

266

174 

182 

178 

185 

182

179 

179 

180 

175 

173

176 

176 

176 

176 

178

176 

165 

168 

197 

133 

181

Minimum

81 

143 

210

54

216 

0 

O 

0 

140 

48 

133 

138 

161

0

Aug.

177 

185 

179 

201 

161

141 

180 

182 

180 

182

201 

161 

141 

178 

183

182 

180 

199 

161 

142

184 

181 

182 

181 

201

159 

138 

186 

180 

179 

180

Mean

153 

197 

219

182

220 

181 

0 

159. 

266 

86.5 

199 

176 

224

174

Sept.

202 

161 

162 

161 

198

186 

184 

227 

217 

220

242 

233 

232 

235

246

221 

220 

241 

230 

229

231 

241 

217 

218 

255

260 

259 

260 

267 

258

Runoff In 

acre -feet

9,410 

11,730 

13,480

131,700

13,530 

10,040 

0 

9,490 

16,330 

5,150 

12,260 

10,800 

13,32,0

125,500
EEL RIVER BASIN 419

South Fork Eel River near Branscomb, Calif.

Location.--Water-stage recorder, lat. 39°43'30", long. 123°38'45", 3 miles downstream from 

Kedwood Creek and 6 miles north of Branscomb.

Records available.--October 1946 to September 1950.

Extremes. Maximum discharge during year, 4,180 second-feet Jan. 17 (gage height, 8.48

reet), from rating curve extended above 1,500 second-feet by logarithmic plotting; minimum, 1.9 second-feet Oct. 4, Sept. 4-6, 28-30.

1946-50: Maximum discharge, 4,200 second-feet Jan. 7, 1948 (gage height, 8.5 feet), 

from rating curve extended above 1,500 second-feet by logarithmic plotting; minimum, 

1.4 second-feet Sept. 24, 1949.

Remarks. Records good except those above 550 second-feet between Jan. 17 and Mar. 26, 

wlilch are fair. No regulation or diversion.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

IS 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28

29 

30

31

Oct.

2.4 

2.4 

2.2 

2.0 

2.2

2.2 

2.6 

3.0 

3.1 

6.5

5.9 

4.1 

3.6 

3.2 

3.1

3.1 

3.0 

2.8 

2.6 

2.8

3.0 

-3.1 

3.1 

3.1 

3.1

3.1 

3.1 

3.1 

3.1 

3.1 

3.1

Nov.

3.0 

2.8 

3.4 

3.0 

3.0

3.0 

3.6 

5.0 

90 

105

63 

28 

18 

14 

12

10 

9.5 

8.5 

8.1 

8.1

7.7 

7.3 

7.3 

7.3 

7.3

7.3 

7.3 

9.0 

9.0

8.1

Dec.

7.3 

6.9 

6.5 

7.3 

27

19 

17 

17 

14 

13

12 

11 

10 

11 

20

26 

87 

142 

121 

67

49 

38 

32 

30 

25

22 

20 

18 

18 

19 

18

Jan.

17 

16 

15 

14 

14

13 

15 

32 

72 

667

352 

194 

662 

992 

394

617 

2,940 

2,410 

1,090 

1,090

1,180 

1,150 

1,460 

972 

607

418 

390 

394 

324 

279 

234

Feb.

200 

175 

240 

801 

748

964 

704 

518 

410 

518

450 

"376 

320 

267 

225

264 

225 

203 

180 

162

146 

135 

1-23 

113 

105

97 

92 

85

Month

Octo 

Hove 

Dace

Ca

Janu 

Pebr 

Mure 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

mber. ...... . . . - - - - -..-..- - - -------

lendar year 1949

h.......................................

ter year 1949-50 .......................

Mar.

eo

75 

70 

67 

111

111 

92 

85 

97 

94

101 

92 

88 

85 

81

102 

986 

660 

1,510 

898

642 

792 

900 

1,360 

964

682 

542 

438 

362 

296 

243

Apr.

211 

180 

156 

139 

135

132 

162 

205 

183 

162

146 

183 

217 

203 

189

169 

154 

139 

126 

109

99 

94

ea

81 

77

72 

67 

63 

60 

57

Secondfoot -days

96.8 

478.6 

931.0

39,231.7

19,024 

8,846 

12,706 

4,058 

1,303 

535 

221.8 

113.2 

66.9

48,380.3

Peak discharge (base, 2,000 seo.-ft,).--Jan. 13 (10 p.

May

81 

94 

87 

70 

64

60 

56 

53 

50 

48

45 

43 

41 

40 

38

36 

34 

33 

32 

30

29 

28 

27 

27 

26

25 

24 

22 

21 

20 

19

Maxlnun

6.5 

105 

142

2,390

2,940 

964 

1,510 

217 

94 

25 

11 

4.7 

2.6

2,940

June

20 

20 

19 

 18 

18

18 

19 

19 

19 

25

25 

25 

21 

20 

18

18 

18 

18 

18 

17

16 

16 

15 

15 

15

14 

13 

13 

13 

12

July

11 

10 

10 

10 

9.0

9.0 

8.5 

8.5 

8.5

8.1

8.1 

7.7 

7.7 

7.3 

7.3

6.5 

6.2 

6.5 

6.5 

6.2

6.2 

5.9 

5.9 

5.6 

5.6

5.3 

5.0 

5.0 

5.0 

5.0 

4.7

Minimum

2.0 

2.8 

6.5

1.4

13 

85 

67 

57 

19 

18 

4.7 

2.5 

1.9

1.9

Aug.

4.7 

4.7 

4.7 

4.7 

4.7

4.4 

4.4 

4.4 

4.4 

4.4

4.4 

4.1 

4.1 

4.1 

3.8

3.6 

3.4 

3.2 

 3.2 

3.1

3.0 

3.0 

3.0 

3.0 

3.0

2.8 

2.8 

2.6 

2.5 

2.5 

2.5

Mean

3.12 

16.0 

30.0

107

614 

316 

410 

135 

42.0 

17.8 

7.15 

3.65 

2.23

133

Sept.

2.3 

2.2 

2.0 

1.9 

1.9

1.9 

2.0 

2.4 

2.4 

2.5

2.5 

2.4 

2.5 

2.5 

2.6

2.6 

2.6 

2.5 

2.5 

2.4

2.4 

Z.Z 

2.0 

2.0 

2.0

2.0 

2.0 

1.9 

1.9 

1.9

Runoff In 

acre-feet

192 

949 

1,850

77,810

37,730 

17,550 

25,200 

8,050 

2,580 

1,060 

440 

225 

133

95,960

m. ) 3,250 sec. -ft. j Jan. 17 (2 p.m. 4,180
420 EEL RIVER BASIN 

South Pork Eel River near Miranda, Calif.

Location.--Water-stage recorder, lat. 40°12', long. 123°46', in NWJt sec. 30, T. 3 S., R. 

 4 E., at Sylvandale camp grounds on U. S. Highway 101, 0.9 mile upstream from 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 1950.

Average discharge. 10 years, 1,560 second-feet.

Extremes. Maximum discharge during year, 38,200 second-feet Jan. 18 (gage height, 19.57 

reet); minimum, 11 second-feet Oct. 3.

1940-50: Maximum discharge, 73,200 second-feet Dec. 27, 1945 (gage height, 27.73 

feet), from rating curve extended above 32,000 second-feet by logarithmic plotting; 

minimum observed, 9 second-feet Oct. 17, 1944.

Remarks.--Records good. Plow slightly regulated by Benbow Dam and powerhouse. No diversion. 

Rating tables, water year 1949-5O (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Nov. 11 to Jan. 7)

Oct. 1 to Mar. 19 Mar. 2O to Sept. 3O

2.46 11 3.3 390 8.6 7,400 2.8 18 3.3 19O 5.O 1,880 

2.5 IS 3.6 600 10.0 1O,10O 2.9 40 3.5 3O5 6.O 3,270 

2.6 44 4.0 920 12. 0 14,40O 3.O 67 3.8 515 7.O 4,770 

2.7 76 4.5 1,390 14.O 19,700 3.1 1O1 4.1 77O 8.O 6,340 

2.8 114 5.0 1,980 16.5 27,5OO 3.2 142 4.4 1,1OO 1O.6 11,300 

2.9 158 6.0 3,320 

3.0 210 7.2 5,070

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2 

3

4 

5

6

7

e

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

61 

28 ]° 

60 

33

14 

48 

33 

18 

158

136 

106 

57 

53 

47

44 

44 

41 

38 

38

38 

38 

38 

38 

38

38 

41 

44 

44 

44 

44

Nov.

44 

44 

41 

41 

41

41 

44 

50 

152 

832

760 

372 

234 

168 

132

114 

98 

87 

83 

80

76 

73 

73 

73 

73

70 

70 

73 

80 

87

Dec.

83 

80 

76 

80 

136

2OO 

200 

184 

189 

163

136 

118 

110 

118 

174

216 

411 

1,250 

1,510 

784

488 

348 

276 

240 

216

194 

174 

158 

149 

149 

145

Jan.

140 

140 

140 

127 

123

118 

132 

384 

791 

5,340

4,510 

1,990 

3,580 

12,000 

4,220

5,030 

19, 200 

27, 500 

11, 700 

6,770

7,040 

7,620 

11,300 

9,440 

5,990

4,180 

3,920 

4,840 

3,590 

2,980 

2,600

Feb.

2,230 

1,970 

2,680 

11,200 

9,940

11,100 

7,800 

5,540 

4,290 

4,660

4,280 

3,490 

2,960 

2,560 

2,240

2,820 

2,760 

2,330 

2,100 

1,950

1,730 

1,580 

1,460 

1,370 

1,280

1,210 

1,140 

1,080

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

1,030 

992 

947 

912

1,090

1,360 

1,140 

1,040 

1,040 

1,130

1,130 

1,100 

1,030 

1,000 

965

1,000 

8,630 

6.61O 

12,200 

9,080

5,890 

6,880 

6,930 

11,200 

8,840

6,520 

5,220 

4,200 

3,510 

3,000 

2,580

Apr.

2

1 

1 

1 

1

1, 

1, 

2j 

2 

2

1,

Z, 

2, 

2, 

2,

2,

1, 

1,i,

i,

i, 

i,

i,

Secondfoot -days

1,514 

4,206 

8,755

437,665

167,435 

99,750 

118,196 

49,561 

15,681 

6,032 

2,776 

1,474 

992

476,372

250 

980 

780 

620 

530

560 

820 

920 

740 

230

970 

110 

650 

510 

250

O5O 

87O 

680 

530 

390

270 

150 

050 

969 

903

840 

790 

761 

716 

672

May

800 

1,O9O 

1,280 

980 

830

743 

689 

646 

612 

579

555 

523 

492 

462 

440

426 

405 

384 

370 

364

357 

344 

318 

218 

196

257 

281 

275 

263 

257 

245

Maximum

158 

832 

1,510

33,200

27,500 

11,200 

12,200 

2,920 

1,280 

263 

130 

77 

38

27,500

June

240 

228 

223 

223 

218

212 

206 

218 

218 

228

257 

263 

240 

228 

212

206 

201 

201 

201 

185

190 

185 

180 

176 

152

152 

152 

152 

147 

138

July

130 

126 

117 

117 

117

113 

1O9 

98 

91 

98

98 

98 

91 

91 

91

91 

87 

84 

77 

87

84 

84 

67 

67 

77

67 

54 

67 

57 

67 

64

Aug.

51 

51 

77 

77 

43

45 

67 

67 

43 

43

67 

62 

48 

51 

51

62 

43 

36 

43 

43

43 

40 

38 

38 

38

36 

36 

36 

33 

33 

33

Sept.

31 

31 

29 

29 

29

29 

27 

29 

31 

31

38 

38 

36 

38 

38

38 

38 

38 

38 

36

36 

36 

33 

31 

31

31 

31 

31 

31 

29

Hini^ Mean ££*£

12 . 48.8 3,000 

41 140 8,340 

76 282 17,370

11 1,199 868,200-

118 5,401 332,100 

1,080 3,562 197,900 

912 3,813 234,400 

672 1,652 98,300 

196 506 31,100 

138 201 11,960 

54 89.5 5,510 

33 47.5 2,920 

27 33.1 1,970

12 1,305 944,900

Peak discharge (baae, 28,000 sec.-ft.). Jan. 18 (12:3O a.m.) 38,200 sec.-ft.
EEL RIVER BASIN 421

Van Duzen River at Bridgeville, Calif.

Location. Wire-weight gage and crest-stage indicator, lat. 40°28'05 n , long. ISS^'SS",

 in mt sec. 13, T. 1 N., R. 3 E., at highway bridge at Bridgeville, 1 mile downstream 

from Little Larrabee Creek. Datum of gage is 590.66 feet above mean sea level, datum 

of 1929.

Drainage area. 200 square miles.

Records available. September 1911 to August 1913, December 1939 to September 1950.

Average discharge. 11 years {1911-12, 1940-50), 696 second-feet.

Extremes. Maximum discharge during year, 14,800 second-feet Jan. 17 (gage height, 21.0

 feet); minimum observed, 5.8 second-feet Sept. 22-24.

1939-50: 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, 5.6 second-feet Sept. 23, 24, 1949.

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 1949-50 (gage height, In feet, 

and discharge, in second-feet)

Oct. 1 to Apr. 11 Apr. 12 to Sept. 30

2.S

2.9

3.0 

3.2 

3.5

3.8 

4.0 

4.4 

4.7 

5.0

99 

125 

1S4 

244 

325

5.5 

6.0 

6.5 

7.2 

8.0

505

720

960

1,320

1,760

2,370

3,760

5,470

7,380

9,240

2.5

2.6

2.7

2.8

2.9

5.0

7.0

10

14

19

3.0 

3.3 

3.6 

4.0

25

47

77

125

Note. sane as preceding table above 4.0 feet.

Discharge, In second-feet, Mater year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

e 9

10

11

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

7.4 

7.4 

7.4 

7.4 

8.3

10 

14 

12 

12 

54

32 

21 

16 

14 

12

11 

11 

11 

11 

11

11 

12 

12 

12 

12

12 

12 

12 

12 

11 

11

Nov.

11 

11 

11 

11 

11

11 

12 

18 

228 

590

413 

218 

143 

107 

89

76 

69 

70 

168 

61

45 

41 

39 

38 

36

36 

45 

138 

126 

84

Dec.

65 

59 

51 

56 

287

171 

174 

226 

158 

136

115 

103 

89 

91 

100

150 

480 

742 

585 

328

" 222 

191 

178 

325 

235

184 

160 

145 

139 

193 

176

Jan.

152 

147 

126 

115 

122

120 

112 

258 

292 

970

688 

461 

573 

1,000 

666

726 

8,570 

9,130 

4,560 

3,020

6,320 

5,490 

7,350 

3,950 

2,230

1,510 

1,380 

1,510 

1,100 

940 

774

Feb.

648 

634 

1,230 

4,020 

5,380

5,590 

2,870 

2,050 

1,560 

2,230

2,OOO 

1,550 

1,300 

1,210 

1,250

2,540 

2,010 

1,530 

1,290 

1,100

955 

830 

783 

1,210 

1,220

920 

1,080 

985

Month

Octo 

Move 

Dece

Ca

Janu 

Febxi 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

 ber. ...................................

 ber. ...........-.-......-..-.----.--.-.

lender year 1949 

ary

i. ......................................

ember . .

ter year 1949-50 .......................

Mar.

890 

810 

810 

890 

1,790

1,610 

1,2OO 

1,070 

965 

900

850 

693 

634 

573 

521

1,230 

7,010 

4,070 

6,880 

3,380

2,470 

3,780 

2,870 

2,790 

2,200

1,950 

2,020 

1,630 

1,410 

1,330 

1,290

Apr.

1,220 

1,120 

970 

835 

792

1,140 

1,450 

1,610 

1,310 

1,260

1,150 

1,780 

1,980 

1,480 

1,220

1,070 

960 

940 

910 

920

865 

765 

630 

537 

489

465 

453 

433 

408 

376

Secondfoot -days

418.9 

2,956 

6,317

174,896.7

64,362 

49,975 

60,516 

29,538 

12,052 

3,186 

865 

283.7 

197.8

230,667.4

May

603 

738 

666 

585 

573

561 

477 

441 

418 

411

425 

418 

422 

418 

404

386 

366 

334 

313 

307

310 

304 

298 

284 

279

258 

237 

222 

208 

198 

188

Maximum

54 

590 

742

11,300

9,130 

5,590 

7,010 

1,980 

738 

173 

48 

13 

8.2

9,130

June

173 

159 

145 

133 

126

124 

125 

122 

117 

150

159 

145 

131 

116 

107

106 

105 

100 

90 

84

80 

79 

75 

70 

68

66 

63 

60 

56 

52

July

48 

46 

45 

44 

41

39 

38 

36 

36 

35

33 

33 

31 

29 

28

26 

24 

23 

23 

21

21 

20 

20 

19 

17

16 

16 

15 

15 

14 

13

Minimum

7.4 

11 

51

5.6

112 

634 

521 

376 

188 

52 

13 

6.4 

5.8

5.8

Aug.

13 

12 

12 

12 

12

12 

11 

11 

11 

11

10 

10 

10 

10 

9.4

8.8 

8.5 

8.2 

7.6 

7.3

7.3 

7.0 

7.0 

7.3 

7.3

7.3 

7.3 

7.0 

6.6 

6.4 

8.4

Mean

13.5 

98.5 

204

479

2,076 

1,785 

1,952 

985 

389 

106 

27.9 

9.15 

6.5»

' 632

Sept.

6.4 

6.2 

6.2 

6.2 

6.2

6.0 

6.0 

6.4 

7.6 

8.2

7.9 

7.0 

7.0 

7'.3 

7.3

7.3 

7.3 

7.3 

7.0 

6.6

6.2 

5.8 

5,8 

5.8 

6.0

6.0 

6.2 

6.2 

6.2 

6.2

Runoff In 

acre-feet

831 

5,860 

12,530

346,900

127,700 

99,120 

120,000 

58,590 

23,900 

6,320 

1,720 

563 

398

457,500

Peak discharge (base, 8,500 sec.-ft.J;. Jan. 17 (tine unknown) 14.800 sec. -ft.: Mar. 17 {time unknown) 11,800 sec.-ft. 

'*7481 0-52-28
422 KLAMATH RIVER BASIN

Williamson River below Sprague River, near Chiloquin, Oreg.

Location.--Water-stage recorder, lat. 42 0 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 1950.

Average discharge. 33 years, 858 second-feet.

Extremes.--Maximum discharge during year, 1,920 second-feet Apr. 10 (gage height, 3.80 

reet); minimum, 440 second-feet Dec. 20.

1917-50: Maximum discharge, 7,660 second-feet Apr. 1, 1943 (gage height, 7.29 feet); 

minimum, 320 second-feet Oct. 14, 1920.

Remarks.--Records good. Diversions above station for irrigation, 

at dam above station causes fluctuation at times.

Manipulation of gates

C ooperat ion.--Water-s tage recorder inspected by employee of The California Oregon Power Co. 

Revisions (water years).--W 981: 1938(M).

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, In second-feet)

2.1 440 3.0 1,110 

2.2 495 3.2 1,290 

2.4 625 3.4 1,480 

2.6 780 3.6 1,690 

2.8 940 3.8 1,920

Discharge, in second- feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

569 

569 

569 

569 

576

583 

590 

597 

604 

604

597 

597 

604 

562 

555

555 

562 

555 

555 

555

562 

597 

597 

611 

640

597 

583 

604 

583 

576 

583

Nov.

583 

583 

590 

597

611

611 

611 

618 

640 

640

648 

648 

640 

640 

640

640 

640 

632 

640 

640

640 

648 

648 

648 

662

655

662 

648 

640 

648

Dec.

670 

685 

640 

632 

632

618 

618 

611 

611 

611

604 

632 

632 

604 

604

625 

625 

632 

590 

501

531 

604 

618 

625 

590

618 

604 

597 

618 

604 

576

Jan.

604 

597 

537 

590 

562

597 

597 

597 

590 

597

525 

519 

519 

519 

583

555 

590 

678 

685 

692

740 

780 

836 

884 

972

996 

932 

892 

780 

796 

678

Feb.

670 

632 

632 

648 

648

670 

692 

748 

828 

860

788 

748 

732 

724 

724

772 

908 

1,120 

1,270 

1,240

1,080 

988 

916 

884 

956

1,050 

1,160 

1,310

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

ttav

June 

July 

Augu 

Sept

Ha

lendar year 194S .......................

ter year 1949-50 .......................

Mar.

1,430 

1,480 

1,460 

1,430 

1,520

1,690 

1,760 

1,800 

1,760 

1,590

1,440 

1,340 

1,300 

1,230 

1,180

1,200 

1,240 

1,270 

1,390 

1,530

1,580 

1,620 

1,610 

1,680 

1,840

1,870 

1,690 

1,530 

1,480

1,410 

1,340

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,

Secondfoot-days

13,060 

18,991 

18,962

294,961

21,019 

24,418 

46,690 

52,660 

48,380 

30,236 

16,366 

15,374 

15,681

326,8371

380 

510 

670 

760 

820

840 

820 

860 

900 

900

870 

780 

690 

610 

620

660 

660 

650 

670 

700

740 

760 

780 

800 

840

870 

900 

900 

860 

840

May

1,820 

1,810 

1,780 

1,760 

1,780

1,810 

1,810 

1,760 

1,640 

1,530

1,430 

1,340 

1,270 

1,220 

1,150

1,220 

1,280 

1,380 

1,460 

1,510

,580 

,680 

,690 

,670 

,570

,570 

,680 

1,610 

1,580 

1,530 

1,460

Maximum

640 

662 

685

2,000

996 

1,310 

1,870 

1,900 

1,820 

1,360 

640 

549 

604

1,900

June

1,360 

1,310 

1,320 

1,320 

1,240

1,160 

1,040 

948 

956 

956

940 

924 

924 

948 

1,040

1,180 

1,230 

I ',160 

1,090 

1,070

1,050 

972 

924 

860 

820

788 

748 

662 

648 

648

July

640 

640 

632 

611 

590

543 

a520 

8510 

8510 

513

519 

525 

525 

531 

525

519 

513 

513 

507 

501

501 

501 

501 

531 

513

495 

495 

490 

484 

484 

484

Aug.

484 

490 

484 

490 

484

473 

549 

525 

513 

513

501 

501 

507 

501 

501

495 

501 

501 

501 

495

501 

507 

507 

507 

473

473 

478 

473 

478 

484 

484

Minimum Mean

555 583 

583 633

501 612

470 808

519 678 

632 872 

1,180 1,506 

1,380 1,755 

1,150 1,561 

648 1,O08 

484 528 

473 496 

473 523

473 895

Sept.

484 

490 

473 

490 

495

490 

484 

490 

495 

495

513 

519 

519 

519 

519

519 

519 

604 

543 

537

537 

537 

543 

543 

555

555 

549 

555 

555 

555

Runoff in 

acre-feet

35,820 

37,670 

37,610

585,000

41,690 

48,430 

92,610 

104,400 

95,960 

59,970 

32,460 

30,496 

31,100

648,200

Peak discharge (base,. 1.400 sec.-ft.). Mar. 8 (2 to 4 p.m.) 1,810 aec.-ft.j Mar. 26 (2 a.m. to 

2 p.m.J 1,9OO sec.-ft.5 Apr. 10 (1 to 5 p.m.) 1,920 sec.-ft.; May p3 (1 a.m. to 6 p.m.) 1,690 sec.-

a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for Sprague River near Chilofluin,
KLAMATH RIVER BASIN

423

Upper Klamath Lake near Klamath Palls, Oreg.

Location.--Water-stage recorder, lat. 42°15', long. 121°48' , in Sw£ sec. 19, T. 38 S., R. 

a is., 1 mile upstream from outlet of Upper Klamath Lake and 2 miles northwest of 

Klamath Palls. 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 1950.

.Extremes. Maximum elevation during year, 4,143.29 feet May 3; minimum, 4,137.44 feet

 JJec. 4. Maximum daily elevation, 4,142.96 feet June 6; minimum daily, 4,138.18 feet 

Jan. 7.

1904-50: 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 

I92T, 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 "An Canal for irrigation of land under Klamath project of Bureau of 

Reclamation, or released to Link River through dam or power plants at Klamath Palls. 

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 CaliToforma Oregon Power Co. 

Revisions (water years). W 1061: 1944.

Elevation, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

39.76

39.77

39.75

39.65

39.81

39.67

39.92

39.84

39.63

39.71

39.66

39.84

39.82

39.71

39.67

39.77

39.80

39.80

39.84

39.63

39.50

39.48

39.46

39.45

39.44

39.43

39.37

39.36

39.38

39.38

39.34

Nov.

39.31

39.29

39.27

39.24

39.24-

39.22

39.17

3S.95

38.98

39.01

3S.93

39.10

39.10

39.08

39.07

39.05

39.04

39.00

39.00

38.97

38'. 94

38.88

38.83

38.85

38.84

38.73

38.75

38.93

38.90

38.84

-

Dec.

38.81

3S.98

38.87

3S.48

3S.71

38.82

38.82

3S.S4

38.97

38.90

38.71

38.66

3S.75

38.64

38.58

38.52

38.46

38.50

38.56

38.52

38.47

38.45

38.43

38.43

38.40

38.38

38.35

38.33

38.32

38.31

38.27

Jan.

38.26

38.26

38.24

38.23

38.22

38. 2O

38. IS

38.22

38.20

38.21

38.24

38.25

38.25

38.31

3S.30

38.32

38.35

38.44

3S.46

38.49

38.52

38.56

38.68

38.75

38.80

38.81

38.87

38.94

38.97

39.04

39.06

Feb.

39.06

h39.09

39.11

39.15

39.17

39.24

39.25

39.27

39.33

39.37

39.44

39.46

39.49

39.52

39.54

39.60

39.66

39.73

39.79

39.85

39.92

39.97

40.02

40.09

40.15

40,26

40.42

40.43

_

_

-

Mar.

40.51

40.52

40.58

40.64

40.79

40.90

40.93

40.96

41.00

41.12

41.29

41.21

41.20

41.28

41.25

41.16

41.34

41.35

41.62

41.60

41.57

41.80

41.56

41.86

41.87

41.84

42.01

41.97

42.03

42,00

42.03

Apr.

42.04

42.16

42.15

42.16

41.96

42.09

41.92

42.26

42.35

42.25

42.27

42.27

42.62

42.48

42.45

42.54

42.59

42.65

42.59

42.65

42.65

42.78

42.73

42.65

42.75

42.66

42.89

42.71

42.65

42.65

-

May

42.63

42.65

42.92

42.75

42.81

42. S9

42.86

42.80

42.77

42.75

42.77

42.79

42.81

42.88

42.83

42.84

42.93

42.82

42.79

42.78

42.83

42.83

42.84

42.93

42.83

42.83

42.93

42.84

42.82

42.84

42.86

June

42.92

42.78

42.71-

42.75

42.80

42.96

42.71

42.59

42.50

42.53

42.64

42.63

42.64

42.64

42.61

42.64

42.65

42.72

42.74

42.83

42.82

42.74

42.80

42.65

42.56

42.56

42.57

42.57

42.58

42.61

-

July

42.57

42.57

42.53

42.48

42.45

42.45

42.36

42.30

42.29

42.27

42.18

42.19

42.15

42.15

42.13

42.07

42.08

42.03

41.95

41.89

41.89

41.83

41.83

41.80

41.75

41.74

41.62

41.74

41.58

41.54

41.47

Aug.

41.45

41.45

41.46

41.42

41.32

41.25

41.21

41.19

41.22

41.21

41.15

41.15

41.13

41.08

41.03

41.03

40.96

40.98

40.95

40.93

40.92

40.90

40.81

40.78

40.77

40.79

40.72

40.73

40.69

40.64

40.60

Sept.

40.55

40.55

40.54

4O. 5S

40.50

40.51

40.44

40.33

40.38

40.38

40.41

40.36

40.29

40.28

40.26

40.26

40.24

40.24

40.28

40.26

40.24

40.24

40.24

40.24

40.23

40.21

40.33

40.43

40.43

40.23

-

h Staff-gage reading.

Note. Add 4,100.00 feet to obtain elevation above mean sea level, Bureau of Reclamation datura. 

Elevations given represent dally mean elevation of lake.

Monthly elevation and contents, water year October 1949 to September 1950

Date

Calendar year 1949. .

Sept. 30. ....... .......

Water year 1949-50. .

Elevation 

(feet)

-

4,140.26

-

Contents 

(acre-feet)

-

474 200

323,400

-

Change in contents 

during month 

(acre-feet)

-97,100

-26,600

+36,100

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.
424 KLAMATH RIVER BASIN

Link River at KLamath Palls, Oreg.

Location. Water-stage recorder, lat. 42°13', long. 121°48', in NW£ sec. 32, T. 38 S., R.

 9TT77 200 yards upstream from outlet of Keno Canal and three-eighths of a mile upstream 

from Main Street Bridge 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 1950.

Average discharge. 46 years, 1,510 second-feet (including Keno Canal).

Extremes. Maximum combined discharge of Link River and Keno Canal during year, 2,340

 second-feet Dec. 16; minimum, 22 second-feet Feb. 22, 23.

1904-50: Maximum discharge, 9,400 second-feet May 12, 1904 (gage height at bridge, 

7.30 feet); minimum, 12 second-feet Mar. 22, 1945; minimum daily, 17 second-feet Dec. 

13, 1937.

Remarks.--Records good. Regulation since April 1919 by Upper Klamath Lake. Water diverted

 aUove station by main or "A" Canal of Klamath project and Keno Canal (see pp. 431,432). 

Other small diversions above lake. Records of discharge include flow of Keno Canal.

Cooperation. Water-stage oper recorder inspected by employee of The California Oregon Power

ToT

Discharge, in second-feet, water year October 1949 to Septenber 1950

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

Oot.

1,370 

1,380 

1,380 

1,3SO 

1,480

1,700 

1,700 

1,700 

1,690 

1,700

1,700 

1,700 

1,700 

1,700 

1,690

1,700 

1,690 

1,690 

1,810 

1,910

1,900 

1,880 

1,910 

1,910 

1,880

1,880 

1,930 

1,950 

1,950 

1,970 

1,950

Nov.

1,970 

2,030 

2,060 

2,060 

2,050

2,060 

2,050 

2,030 

2,020 

2,040

2,040 

2,060 

2,060 

2,080 

2,130

2,130 

2,060 

2,070 

2,110 

2,110

2,080 

2,060 

2,060 

1,900 

1,810

1,940 

1,870 

1,610 

1,660 

1,700

Month

Ooto 

Hove 

Deoe

Cal

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Rat

bar.............

endar year 1949 

ary.............

amber. ..........

ar year 1949-50

Dec.

1,700 

1,840 

2,000 

1,470 

1,740

2,080 

2,060 

2,090 

2,060 

2,010

2,010 

2,170 

2,260 

2,330 

2,310

2,280 

2,290 

2,290 

2,300 

2,300

2,290 

2,190 

2,110 

2,070 

2,050

2,110 

2,230 

2,150 

2,020 

2,030 

2,040

Jan.

1,920 

1,890 

1,920 

1,920 

1,820

1,640 

1,510 

1,630 

1,790 

1,800

1,690 

1,650 

1,470 

1,260 

1,520

1,790 

1,660 

1,470 

1,330 

1,230

1,240 

757 

650 

644 

611

70S 

658 

a794 

8791 

a872 

al,050

Feb.

al,100 

1,260 

1,120 

1,290 

723

866 

560 

473 

579 

367

524 

675 

759 

682 

358

353 

92 

25 

67 

215

236 

180 

298 

266 

268

34 

254 

75

Mar.

158 

245 

167 

200 

167

256 

298 

257 

260 

254

308 

316 

356 

314 

268

290 

66 

137 

692 

1,410

733 

613 

784 

1,110 

1,110

1,110 

1,130 

1,150 

1,300 

1,090 

1,220

River Including Keno Canal

Discharge in 

second-feet

Maximum

1,970 

2,130 

2,330

2,420

1,920 

1,290 

1,410 

1,420 

1,420 

1,160 

1,130 

1,250 

1,130

2,330

Minimum

1,370 

1,610 

1,470

65

611 

25 

66 

791 

545 

384 

652 

883 

630

25

Mean

1,738 

1,997 

2,093

1,237

1,345 

489 

573 

1,237 

963 

812 

907 

1,053 885

1,179

Runoff 

in 

acre-feet

106 , 900 

118,800 

128,700

895,700

82,670 

27,170 

35,240 

73,610 

59,240 

48,330 

55,780 

64,740 

52,640

853,800

Apr.

1,030 

985 

1,040 

1,090 

1,380

1,330 

1,120 

1,150 

791 

1,120

1,060 

1,050 

1,080 

1,070 

917

1,410 

1,410 

1,420 

1,400 

1,400

1,400 

1,410 

1,400 

1,400 

1,370

1,380 

1,380 

1,380 

1,370 

1,370

May

1,390 

1,420 

1,350 

1,310 

1,280

1,210 

1,220 

1,120 

986 

1,110

925 

712 

682 

922 

863

852 

848 

891 

866 

771

753 

545 

559 

670

711

804 

1,020 

975 

1,070 

1,010 

1,020

June

1,150 

737 

704 

805 

933

1,150 

987 

1,160 

945 

799

688 

746 

680 

703 

588

384 

515 

390 

686 

716

755 

852 

781 

765 

820

803 

912 

1,020 

1,150 

1,040

July

802 

858 

722 

741 

820

893 

1,020 

652 

829 

983

953 

1,020 

922 

916 

884

734 

830 

657 

994 

1,100

939 

984 

941 

931 

943

921 

879 

1,010 

1,120 

996 

1,130

Aug.

1,070 

942 

883 

955 

982

977 

1,110 

1,250 

1,050 

1,130

1,010 

993 

953 

951 

1,030

1,180 

1,020 

1,020 

1,200 

1,130

1,170 

1,160 

1,120 

1,030 

997

990 

1,060 

1,100 

1,120 

1,060 

997

Sept.

994 

953 

935 

802 

939

S52 

787 

788 

1,000 

851

1,130 

969 

780 

932 

758

872 

899 

814 

959 

768

1,060 

800 

882 

630 

901

789 

854 

868 

993 

962

Adjusted for diversion

"A" Canal 

(runoff In 

acre-feet)

0 

 0

216,300

0 

0 

0 

5,250 

39,540 

47,600 

59,990 

46,600 

24,180

223,200

Runoff 

in 

acre-feet

106,900 

118,800 

128,700

1,112,000

82,670 

27,170 

35,240 

76,860 

98,780 

95,930 

115,800 

111,300 

76,820

1,077,OCO

Discharge in 

second-feet

Mean

1,738 

1,997 

2,093

1,536

1,345 

489 

573 

1,325 

1,607 

1,612 

1,883 

1,810 

1,291

1,488

Per 

square 

mile

Runoff

inches

a No gage-height record for river station; 

and log of electrical output.

discharge computed on basis of recorded range In stage
KLAMATH RIVER BASIH 425

Klamath River at Keno, Oreg.

Location. Water-stage recorder, lat. 42°08',. long. 121°58', in SE£ sec. 35, T. 39 S., R.

Y hi., 2 miles west of Keno and 5 miles upstream from Spencer Creek.

Drainage area. 3,920 square-miles, not including Lost River or Lower Klamath Lake Basins. 

Records available. June 1904 to December 1913, January 1930 to September 1950. 

Average discharge. 29 years, 1,493 second-feet, 

latremes.--maximum discharge during year, 2,760 second-feet Mar. 17 (gage height, 6.97

reet); minimum, 316 second-feet Mar. 19 (gage height, 2.92 feet).

1904-13. 1930-50: Maximum discharge, 6,830 second-feet May 1-6, 1938 (gage height,

10.10 feet); minimum, 35 second-feet Aug. 4, 1934; minimum daily, 60 second-feet May

19, 1934. 

Remarks. Records excellent. Diversions above station for irrigation. Lost River dlver-

 slon 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 C5T 

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

3.4 480 

4.0 740 

5.0 1,290 

6.0 1,950 

7.0 2,790

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

 21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,310 

1,360 

1,430 

1,460 

1,600

1,750 

1,750 

1,740 

1,820 

1,880

1,890 

1,870 

1,820 

1,810 

1,810

1,860 

1,800 

1,810 

1,890 

2,010

2,130 

2,180 

2,170 

2,160 

2,130

2,120 

2,110 

2,120 

2,120 

2,130 

2,130

Nov.

2,110 

2,100 

2,110 

2,130 

2,140

2,140 

2,130 

2,210 

2,190 

2,100

2,050 

2,050 

2,090 

2,150 

2,200

2,210 

2,220 

2,180 

2,180 

2,130

2,210 

2,220 

2,200 

2,040 

1,920

2,090 

2,030 

1,800 

1,800 

1,780

Dec.

1,750 

1,750 

1,870 

1,870 

1,620

1,960 

2,000 

2,050 

2,060 

2,060

2,080 

2,110 

2,070 

2,100 

2,100

2,100 

2,090 

2,090 

2,080 

2,070

1,990 

1,900 

1,890 

1,790 

1,740

1,810 

1,940 

1,830 

1,660 

1,680 

1,680

Jan.

1,580 

1,470 

1,500 

1,500 

1,430

1,270 

1,090 

1,170 

1,350 

1,510

1,540 

1,520 

1,310 

1,120 

1,310

1,660 

' 1,620 

1,310 

1,120 

1,130

1,130 

1,150 

1,100 

1,030 

1,030

1,040 

1,020 

1,000 

1,020 

1,000 

1,080

 ., SecondMonth foot -days

Oct 

Nov 

Dec

C

Jan 

Feb 

Mar 

Apr 

May 

Jun 

Jul 

Augi 

Sep

W

alendar year 194 

uary. ...........

,110 

,960 

,790

9 476,833

39

e.. .............. is

ater year 1949-5

21 

29 

32

,110 

,492 

,051 

,366 

,051 

,899 

,987 

,586 

,360

D 454,762

Feb.

1,210 

1,240 

1,220 

1,240 

1,050

800 

695 

690 

682 

682

682 

770 

722 

686 

668

592 

726 

1,100 

1,050 

994

1,000 

923 

825 

845 

850

855 

850 

845

Mar.

840 

840 

835 

845 

865

820 

850 

890 

870 

870

880 

880 

880 

875 

875

870 

1,390 

1,820 

790 

636

1,040 

1,060 

1,460 

1,860 

1,840

1,850 

1,840 

1,800 

1,780 

1,640 

1,460

Apr.

1,370 

1,360 

1,360 

1,350 

1,100

906 

820 

825 

805 

795

795 

790 

785 

945 

1,180

1,270 

1,320 

1,350 

1,420 

1,460

1,450 

1,450 

1,500 

1,540 

1,500

1,480 

1,420 

1,360 

1,330 

1,330

Hay

1,340 

1,350 

1,420 

1,500 

1,480

1,490 

1,530 

1,570 

1,530 

1,380

1,280 

1,160 

1,150 

1,160 

1,170

1,160 

1,120 

1,150 

1,150 

956

825 

825 

805 

800 

815

810 

805 

810 

830 

845 

835

Discharge In second-feet Runo

Maximum

2,180 

2,220 

2,110

2,660

1,660 

1,240 

1,860 

1,540 

1,570 

780 

940 

1,030 

1,180

2,220

t Includes diversion to Midland Canal and

Minimum Mean

June

780 

610 

528 

628 

672

623 

618 

623 

632 

618

61S 

614 

618 

618 

628

623 

614 

614 

628 

686

646 

654 

650 

636 

632

623 

614 

61O 

618 

623

ff In 

-feet

1,310 1,875 115,300 

1,780 2,099 124,900 

1,620 1,929 118,600 -

488 1,306 945,900

1,000 1,262 77,570 

592 875 48,580 

636 1,163 71,510 

785 1,212 72,130 

800 1,131 69,520 

528 630 37,490 

592 709 43,610 

800 954 58,680 

1,040 1,079 64,190

528 1,246 902,100

July

623 

623 

610 

600 

596

592 

596 

596 

592 

592

605 

618 

614 

614 

618

682 

722 

708 

704 

704

780 

825 

S3O 

830 

825

815 

805 

860 

940 

940 

928

Aug.

870 

928 

800 

896 

945

945 

945 

945 

945 

962

962 

945 

928 

967 

962

978 

962 

945 

945 

950

940 

945 

950 

956 

950

1,030 

1,010 

1,010 

1,020 

1,020 

1,030

Sept.

1,050 

1,060 

1,040 

 1,040 

1,040

1,040 

1,040 

1,060 

1,070 

1,080

1,080 

"1,100 

1,110 

1,100 

1,100

1,100 

1,100 

1,100 

1,100 

1,090

1,080 

1,030 

1,060 

1,060 

1,060

1,060 

1,070 

1,080 

1,130 

1,130

Diversion Pumpage 

at Ady at Ady 

(acre-feet)t (acre-feet)

650 5,600 

3,700 5,350 

26,730 5,450

86,680 86,130

31,740 6,080 

14,010 12,460 

170 17,720 

* 1,390 8,120 

4,680 11,520 

4,200 3,450 

3,930 2,670 

2,340 2,260 

1,260 14,170

94,800 94,850

diversion at Ady to Klamath Strait.
426 KLAMATH RIVER BASIN

KLamath River below Pall Creek, near Copco, Calif.

Location. Water-stage recorder, lat. 41°58', long. 122°22', in NE£ sec. 36, T. 48 N , R 

5 W., 500 feet downstream from Pall Creek, half a mile downstream from Copco No. 2 plant 

of The California Oregon Power Co., and 1 mile south of Copco post office. Altitude of 

gage, 2,310 feet (from river-profile map).

Drainage area. 4,370 square miles.

Records 'available. October 1928 to September 1950. October 1923 to September 1928 at site 

aoove ran ureek.

Average discharge. 27 years, 1,490 second-feet (including Pall Creek).

Extremes.--Maximum discharge during year, 5,180 second-feet Nov. 27 (gage height, 5.54 

reet '5 minimum, 264 second-feet Aug. 6 (gage height, 1.65 feet); minimum daily, 295 

second-feet June 18, July 16, Aug. 20.

n oi 9 £3 " 5(? : Maxlmum discharge, 9,660 second-feet Apr. 27, May 3, 1938 (gage height, 

7.6Q 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. Water-stage recorder inspected by employee of The California Oregon Power Co.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.7 285 3.0 1,350 

1.9 390 3.5 1,900 

2.1 530 4.3 3,000 

2.5 860

Discharge, In second-feet, water year October 1949 to September 1950

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.

1,550 

438 

1,840 

1,900 

2,070

2,180 

2,220 

1,960 

886 

1,710

2,260 

2,220 

2,380 

2,210 

1,640

1,350 

2,200 

2,220 

2,200 

2,410

2,610 

2,520 

1,170 

2,420 

2,550

2,340 

2,380 

2,480 

2,660 

1,320 

2,420

Nov.

2,620 

2,450 

2,470 

2,490 

2,390

1,000 

2,370 

2,490 

2,630 

2,830

1,930 

2,410 

1,600 

2,430 

2,490

2,550 

2,490 

2,530 

2,290 

1,300

2,590 

2,520 

2,650 

1,740 

2,370

2,420 

1,780 

2,030 

2,150 

2,110

Dec.

2,070 

2,O80 

1,600 

1,120 

2,200

2,060 

2,300 

2,340 

2,450 

2,210

1,280 

2,250 

2,240 

2,180 

2,220

2,240 

2,440 

1,790 

2,110 

2,280

* 2,280 

2,230 

2,170 

2,000 

1,190

1,570 

2,270 

2,240 

2,010 

2,170 

1,620

Jan.

1,120 

1,610 

1,890 

1,510 

1,530

1,760 

1,840 

1,130 

1,830 

1,670

1,490 

1,590 

1,290 

al,340 

al,510

al,870 

al,500 

a2,080 

al,900 

1,750

1,360 

644 

1,720 

1,570 

1,370

1,340 

1,300 

1,220 

519 

1,400 

1,690

Feb.

1,500 

1,480 

1,660 

746 

1,200

1,240 

1,060 

1,170 

927 

1,450

1,210 

686 

1,140 

824 

1,060

1,140 

1,630 

1,850 

402 

1,610

1,510 

1,660 

1,160 

1,280 

1,300

581 

1,490 

1,510

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Mam

sU 

 Pt

Wa

Lendar year 1949

ter year 1949-50 .......................

Mar.

1,630 

1,400 

1,380 

1,100 

652

l;500 

1,510 

1,520 

1,520 

1,540

584 

474 

1,530 

1,530 

1,530

1,520 

1,660 

2,220 

658 

1,430

1,540 

2,010 

2,230 

2,210 

2,200

978 

2,420 

2,560 

2,230 

1,810 

1,850

Apr.

1

1 

1 

1 

1

1 

1 

1

1

1 

1 

1 

2

1

1 

1 

1 

1

2

1

2 

2

2 

2

1, 

1,

Secondfoot-days

62,714 

68,120 

63,210

569,299

46,343 

34,476 

48,926 

47,003 

45,732 

28,486 

28,214 

37,279 

38,O74

548,577

160 

160 

840 

910 

710

380 

260 

280 

835 

360

220 

260 

330 

130 

530

589 

910 

890 

880 

950

030 

830 

964 

230 

240

220 

020 

78O 

790 

315

May

1^810 

1,980 

2,110 

2,170 

1,850

1,610 

630 

2,O6O 

2,010 

2,OOO

1,860 

1,580 

1,330 

614 

1,620

1,660 

1,660 

1,700 

1,820 

766

485 

1,240 

1,380 

1,470 

1,480

1,660 

1,140 

360 

1,980 

517 

1,180

Maximum

2,660 

2,830 

2,450

2,960

2,080 

1,850 

2,560 

2,240 

2,170 

1,240 

1,310 

1,570 

1,610

2,830

June

1,180 

1,070 

840 

354 

923

1,240 

1,080 

959 

1,020 

990

361 

1,050 

1,060 

1,020 

1,030

1,030 

1,080 

295 

1,040 

1,040

1,070 

1,050 

1,060 

830 

498

716 

1,140 

1,140 

1,140 

1,180

July

866 

441 

988 

305 

921

949 

914 

795 

320 

940

953 

978 

1,000 

1,010 

1,110

295 

1,010 

1,090 

1,080 

1,090

1,080 

872 

305 

1,230 

1,210

1,200 

1,190 

1,200 

1,230 

332 

1,310

Aug.

1,320 

1,310 

1,320 

1,330 

1,180

344 

1,120 

1,350 

1,340 

1,370

1,370 

1,080 

396 

1,340 

1^350

1,350 

1,360 

1,360 

1,110 

295

1,330 

1,340 

1,350 

1,340 

1,360

1,140 

384 

1,350 

1,550 

1,570 

1,570

Minimum Mean

438 2,023 

1,000 2,271 

1,120 2,039

292 1,560

519 1,495 

402 1,231 

474 1,578 

315 1,567 

360 1,475 

295 950 

295 91O 

295 1,2O3 

300 1,269

295 1,5O3

Sept.

1,600 

1,200 

305 

300 

1,560

1,580 

1,480 

1,480 

1,270 

524

1,590 

1,580 

1,480 

1,320 

1,340

1,130 

315 

1,550 

1,590 

1,480

1,470 

1,460 

1,230 

310 

1,540

1,590 

1,600 

1,610 

1,320 

1,270

Runoff In 

acre-feet

124,400 

135,100 

125,400

1,129,000

91,920 

68,380 

97,040 

93,230 

90,710 

56,500 

55,960 

73,940 

75,520

1,088,000

a No gage-height record; discharge computed on basis of recorded range In stage, log of electrical 

output for power plant, and records for pall Creek at Copco.
KLAMATB RIVER BASIN 427

Klamath River at Somesbar, Calif.

Location. Water-stage recorder, lat. 41°23", long. 123°29', in NEi? sec. 4, T. 11 N., R. 

b E., 300 feet downstream from Salmon River and 1 mile west of Somesbar post office. 

Altitude of gage, about 450 feet (from topographic map).

Drainage area. 8,480 square miles.

Records available.--October 1927 to September 1950.

Average discharge. 22 years (1927-29, 1930-50), 6,576 second-feet.

Extremes. Maximum discharge during year, 41,900 -second-feet Mar. 17 (gage height, 21.4 

reetj; minimum, 975 second-feet Sept. 5, 6.

1927-50: Maximum discharge, 97,000 second-feet probably Dec. 28, 1945 (gage height, 

40.0 feet, from floodmarks), from rating curve extended above 49,000 second-feet by 

velocity-area studies; minimum, 218 second-feet Aug. 26, 1931.

Flood of Feb. 21, 1927, reached a stage of 50.8 feet.

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

gooa. Flow considerably regulated by reservoirs and power plants above station. Large 

diversions above station for irrigation.

Revisions. W 811: Drainage area.

Bating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

4.3 

4.5 

4.9 

5.3 

5.7

930

1,110

1,530

2,040

2,600

6.0 

6.5 

6.8 

7.5 

8.0

3,050 

3,SSO 

4,420 

5,750 

6,750

9.0

10.0

13.0

16.0

19.2

8,900

11,400

19,200

27,200

35,800

Discharge, In second-feet. Miter year October 1949 to Septenber 1950

Bay

1 

2 

Z 

4

5

6 

7 

8 

9 

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

28 

27 

28 

29 

30 

31

Oct.

2,480 

2,360 

1,660 

1,930 

2,690

2,960 

3,500 

3,190 

3,060 

3,080

2,840 

3,200 

3,300 

3,430 

3,360

2,630 

2,330 

2,940 

3,140 

a3,300

a3,400 

83,500 

a3,000 

al.800 

a2,5OO

«3,600 

a3,400 

a3, 400 

a3,5OO 

3,620 

2,460

Nov.

2,990 

3,520 

3,390 

3,370 

3,400

3,210 

2,170 

2,960 

4,360 

4,700

4,610 

3,920 

3,450 

3,190 

3,540

3,740 

3,970 

3,780 

3,880 

3,760

2,600 

3,560 

3,820 

4,280 

3,400

3,5OO 

5,660 

8,200 

5,390 

4,720

Dec.

4,200 

3,990 

3,800 

3,370 

3,240

3,930 

4,020 

3,880 

3,950 

4,060

3,S80 

2,940 

3,580 

4,040 

3,S10

3,590 

4,080 

4,380 

4,130 

3,710

3,710 

3,850 

3,800 

3,920 

3,5701

3,000 

2,880 

3,510 

3,850 

3,920 

3,730

Jan.

3,490 

2,640 

2,880 

3,160 

3,050

2,920 

3,230 

3,310 

2,S60 

3,890

3,740 

3,290 

3,600 

3,900 

3,OSO

3,290 

5,O9O 

27,000 

20,800 

16,900

24,000 

26,900 

28,700 

23,100 

15,000

11,600 

10,600 

10,100 

8,630 

7,480 

7,360

Feb.

7,130 

6,550 

6,450 

7,110 

S,150

12,000 

11,800 

9,740 

9,020 

S,770

9,190 

8,680 

S,000 

8,330 

8,830

11,800 

13,300 

12,400 

11,700 

9,S80

10,200 

9,620 

9,620 

12,000 

15,400

15,800 

14,500 

14,100

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

liber

lendar year 1945

ter year 1949-50 .......................

Mar.

13,100 

12,700 

13,000 

14,200 

14,900

14,200 

13,000 

11,900 

11,100 

10,400

9,760 

8,370 

7,800 

8,370 

8,150

9,370 

31, 600' 

27,700 

35,800 

27,500

22,100 

25,100 

22,100 

20,500 

18,100

16,000 

13,900 

13,800 

13,200 

12,400 

12,500

Apr.

13,500 

13,700 

13,300 

13,200 

13,500

14,300 

13,OOO 

12,100 

11,200 

10,200

10,200 

11,100 

12,600 

11,700 

11,500

lljlOO 

10,900 

12,800 

13,900 

16,000

16,700 

16,300 

14,500 

12,400 

13,000

12,700 

12,800 

12,400 

11,500 

11,000

Secondfoot -days

91,560 

117,060 

116,320

1,994,468

295,640 

290,070 

492,620 

383,100 

357,290 

197,340 

87,500 

67,460 

64,320

2,580,780

May

10,100 

10,900 

10,200 

9,620 

9,260

8,810 

8,200 

7,300 

8,390 

8,810

10,100 

12,300 

13,900 

15,200 

14,300

14,200 

13,800 

12,400 

11,500 

11,600

11,900 

12,600 

13,500 

13,500 

13,400

13,400 

13,100 

11,400 

10,200 

12,000 

11,400

MUtlBUB

3,620 

8,200 

4,380

24,900

28,700 

15,800 

35,800 

16,700 

15,200 

11,300 

4,380 

2,530 

2,600

35,800

June

11,300 

10,700 

9,500 

8,750 

7,930

7,720 

7,670 

6,860 

6,450 

7,170

7,110 

7,040 

6,920 

6,650 

6,470

6,470 

6,430 

6,230 

5,560 

5,770

5,870 

5,560 

5,350 

5,260 

4,650

4,280 

4,100 

4,530 

4,520 

4,520

July

4,380 

3,920 

3,640 

3,560 

3,350

3,180 

3,310 

3,210 

3,080 

2,680

2,660 

2,980 

2,840 

2,S60 

2,820

2,930 

2,320 

2,190 

2,660 

2,740

2,560 

2,600 

2,380 

2,010 

2,100

2,540 

2,530 

2,530 

2,470 

2,490 

1,980

KlnlrauB

1,680 

2,170 

2,880

818

2,640 

6,450 

7,800 

10,200 

7,300 

4,100 

1,980 

1,570 

1,010

 1,010

Aug.

al,850 

2,500 

2,520 

2,490 

2,530

2,320 1,870;

1,750 

2,430 

2,450

2,490 

2,500 

2,420 

1,580 

1,950

2,360 

2,320 

2,330 

2,250 

2,000

1,640 

1,690 

2,290 

2,230 

2,240

2,320 

2,100 

1,570 

1,650 

2,400 

2,420

Mean

2,954 

3,902 

3,752

5,464

9,537 

10,360 

15,890 

12,770 

11,530 

6,578 

2,823 

2,176 

 2,161

7,016

Sept.

2,380 

2,380 

2,120 

1,580 

1,010

1,680 

2,290 

2,350 

2,210 

2,250

1,650 

1,960 

2,380 

2,32O 

2,350

2,240 

2,220 

1,900 

1,950 

2,600

2,450 

2,400 

2,390 

2,280 

1,730

1,790 

2,570 

2,560 

2,470 

2,380

Runoff In 

acre-feet

181,600 

. 232,200 

230,700

3,956,000

586,400 

575,300 

977,100 

759,900 

708,700 

391,400 

173,600 

133,800 

128,600

5,079,000

Peak discharge (base. 18,000 see.-ft.). Jan. IS (3 p.m.) 35,300 sec.-ft.j Jan. 23 (3 p.m.) 31,400 

sec.-re.; Mar. 17 l12:5O p.m.) 41,SOO sec.-ft.

a No gage-height record; discharge computed on basis of records for station below Fall Creek, near 

Copco.
428 KLAMATH RIVER BASIN

Smaller reservoirs in Klamath River Basin, Oreg.

Pourmile Lake Reservoir.--Staff gage, lat. 42°27', long. 122°14', in NW£ sec. 9, T. 36 S., 

K. 5 Ji., at dam at outlet of Fourmile Lake, 8 miles west of Recreation. Sage 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 1950. 

Maximum contents observed during year, 16,120 acre-feet June 29, 30, July 2 (elevation, 

6,003.0 feet); minimum, 5,520 acre-feet Sept. 30. Maximum contents observed during 

periods 1923-30, 1932-50, 16,220 acre-feet May 18, 1938, June 17, 20, 21, 23, 1944 

(elevation, 6,003.1 feet); no usable contents at times.

Reservoir is formed on natural lake by rock-faced earth dam, completed by Rogue 

River Valley Canal Co. about 1922. Capacity, 13,330 acre-feet between elevatipns 5,980 

feet (sill of outlet gate) and 6,000 feet (crest of spillway, on which flashboards are 

placed to increase contents to 18,100 acre-feet at elevation 6,005 feet). Figures 

given herein represent usable contents. Water is used for irrigation of lands near 

Medford. Sage read one to four times weekly June to September, occasionally at other 

times. No reading made during March or May.

Hyatt Prairie Reservoir. Staff gage, lat. 42°10', long. 122°28', in see. 16, T. 39 S., R. 

a K., at aam or Talent Irrigation District on Keene Creek, 3 miles north of AshlandKlamath Palls highway and 20 miles east of Ashland. Sage readings are elevations above 

mean sea level, datum of Talent Irrigation District. Records available, December 1922 

to September 1950. Maximum contents observed during year, 10,740-acre-feet June 2 

(elevation, 5,009.3 feet); minimum observed, 190 acre-feet Sept. 14 (elevation, 4,985.8 

feet). Maximum contents observed during period 1922-50, 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. Sage read one to 

three times weekly from May to September, 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

Serber Reservoir and Clear Lake Reservoir, in "Records obtained by agencies other than 

the Geological Survey," p. 12 .)

Elevation and contents, water year October 1949 to September 195O

Date

Sept . 30. ....................

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

Fourmile Lake Reservoir

Elevation 

(feet)t

:

-

5,992.2 

6,003.0

_

Contents 

(acrefeet)

6,230 

6,480 

6,530 

6,700

-

6,990 

7,280 

7,74O 

11,020 

13,540 

16,120 

11,740 

7,340 

5,520

Change in 

contents 

during month 

(acre-feet)

+250 

+50 

+170

-190

+290 

+290 

+460 

+3,280 

+2,520 

+2,580 

-4,380 

-4,400 

-1,S20

-710

Hyatt Prairie Reservoir

Elevation 

(feet)t

4,996.0

-

5,000.0 

5,005.6

5,006.3 

5,OO2.0 

4,992.3

.

Contents 

(acrefeet)

2,40O 

2,610 

2,8OO 

3,OOO

-

3,720 

4,120 

4,720 

8,130 

10,700 

8,600 

5,850 

1,470 

350

.

Change in 

contents 

during month 

(acre-feet)

+210 

+190 

+20O

-3,830

+72O 

+400 

+600 

+3,410 

+2,570 

-2, -100 

-2,750 

-4,380 

-1,120

-2,050

t Hour of reading not known.

Note. Contents interpolated for days on which gage was not read.
KLAMATH RIVER BASIN 429

Sprague River near Chlloquin, Oreg.

Location.--Water-stage recorder, lat. 42°35', long, 121°51', In NE£ sec. 35, T. 34 S., R. 

'r fi -« !F miles east of Chiloquln and 4 miles upstream from Modoc Point Canal Intake.

Drainage area. 1,580 square miles.

Records available. August 1931 to September 1950. July 1920 to September 1931 at site at 

Mcureaay rancn, 12 miles upstream; records equivalent except for extremely low,stages.

Average discharge. 29 years (1921-50), 460 second-feet.

Extremes. Maximum discharge during year, 1,320 second-feet May 27 (gage height, 3.22 

reer); minimum not determined, occurred during period of ice effect.

1920-50: Maximum discharge, 6,650 second-feet Apr. 1, 1943 (gage height, 7.47 

feet); minimum daily, 50 second-feet May 26, 27, 1926.

Remarks. Records good except those for period of ice effect, which are poor. Diversions 

aBove station for irrigation; regulation by ponding at Irrigation dams.

Cooperation. Water-stage recorder Inspected by employee of The California Oregon Power Co. 

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

Rating table, water year 1949-50, except period of ice effect

(gage height, in feet, and discharge, in second-feet)

(Backwater from moss June 21 to Sept. 5)

1.3 140

1.5 207

1.7 293

2.0 450

2.3 630

2.6 830

2.9 1,060

3.2 1,300

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

' 24

25

26 

27 

28 

29 

30 

31

Oct.

236

240 

240 

240 

244

244 

252 

262 

266 

266

262 

262 

266 

219 

226

226 

226 

223 

223 

223

223 

262 

257 

275 

298

262 

252 

266 

252 

257 

257

Nov.

257 

257 

257 

257 

257

257 

252 

257 

262 

266

270 

270 

266 

262 

262

257 

257 

257 

257 

257

262 

266 

270 

270 

284

280 

284 

284 

275 

280

Dec.

298 

313 

288 

275 

270

266 

*266 

270 

266 

270

296 

288 

266 

257 

266

273 

275 

275 

230 

140

170 

245 

260 

265 

230

260 

245 

235 

260 

245 

215

Jan.

245 

235 

175 

230 

200

235 

235 

235

230 

235

165 

160 

160 

160 

225

195 

230 

320 

325 

330

380 

420 

475 

525 

610

635 

570 

530 

420 

435 

320

Feb.

310 

270 

270 

290 

290

310 

330 

390 

470 

500

430 

390 

379 

364 

364

*406 

552 

746 

865 

844

704 

616 

540 

522 

582

660 

781 

908

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Hare 

Apr!

»y.

June 

July 

Augu 

Sept

Wa

mber. ...................................

mber. ...................................

lendar year 194: 

ary

ter year 1949-50 .......................

Mar.

1,020 

1,050 

1,040 

1,000 

1,000

1,050 

1,090 

1,120 

1,080 

916

774 

678 

624 

552 

522

526 

552 

582 

672 

795

844 

865 

872 

932 

1,080

1,110 

948 

823 

760 

690 

618

Apr.

1, 

1,

1, 

1,

1, 

1, 

1,

1, 

1,

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1,

1,

Secondfoot-days

7,713 

7,949 

7,982

158,327

9,845 

14,085 

26,187 

31,304 

33,410 

20,220 

7,262 

5,916 

6,400

178,273

666 

602 

956 

020 

060

060 

080 

100 

120 

140

120 

040 

964 

916 

932

972 

980 

964 

972 

000

040 

070 

080 

120 

160

200 

220 

200 

170 

160

May

1,160 

1,160 

1,130 

1,130 

1,160

1,200 

1,210 

1,160 

1,060 

956

886 

830 

781 

732 

672

753 

830 

940 

1,030 

1,110

1,190 

1,280 

1,300 

1,280

1,220

1,200 

1,300 

1,240 

1,210 

1,190 

1,110

Maximum

298 

284

313

1,240

635 

908 

1,120 

1,220 

1,300 

1,010 

343 

240 

275

1,300

June

1,010 

948 

980 

972 

886

823 

704 

624 

636 

642

624 

594 

594 

618 

704

823 

865 

809

746 

732

697 

642 

588 

528 

498

456 

426 

353 

348 

348

July

343 

336 

336 

328 

306

244 

219 

219 

228 

232

228 

232- 

236 

240 

232

232 

223 

219 

219 

215

215 

211 

211 

232, 

211

193 

189 

185 

182 

182 

178

Aug.

162 

185 

182 

175 

168

175 

240 

207 

196 

196

193 

193 

196 

200 

200

200 

203 

200 

193 

196

203 

207 

203 

200

168

171 

178 

175 

175 

178 

178

Minimum Mean

219 249 

252 265 

140 257

146 434

160 318 

270 503 

522 845 

666 1,043 

672 1,078 

348 674 

178 234 

168 191 

178 213

140 488

Sept.

185 

193 

176 

196 

196

a!93 

a!90 

185

189 

196

211 

211 

211 

211 

207

207 

232 

275 

223 

219

215 

219 

219 

223 

232

236 

236 

236 

236

240

Runoff in 

acre-feet

15,300 

15,770 

15,830

314,000

19,530 

27,940 

51,940 

62,090 

66,270 

40,110 

14,400 

11,730 

12,690

353,600

* Winter discharge measurement made on this day. 

ft Ho gape-height record] discharge computed on basis of small recorded range in stage. 

Kate, '.titim-dlscharge relation affected 1*7 lee DM. 19 to Veto. 12 (no gage-height record Jan. 

Jr, 4, V*b. 2-10j discharge confuted on basis of records for Vllllamaon Hirer below Sprague, near
430 KLAMATH RIVER BASIN

Cascade Canal near Pish Lake, Oreg.

Location.--Water-stage recorder, lat. 42°24', long. 122°16', in SE$ sec. 30, T. 36 S., R. 

JTE77 at divide between Rogue River and Klamath River Basins, 3 miles upstream from 

Fish Lake and 10 miles downstream from point of diversion.

Records available. June 1924 to September 1950 (irrigation seasons only).

Extremes. Maximum daily discharge during period June to September, 44 second-feet Sept. 5; 

no now at times.

1924-50: Maximum daily discharge, 54 second-feet June 5-7, July 10, 11, 1934; no 

flow at times.

Remarks. Records good. Water stored in Fourmile Lake Reservoir wks released to canal

during period June 29 to Sept. 14. Canal diverts water from Fourtnlle 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 second-feet, water year October 1949 to September 1950

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 

26 

29 

SO 

31

Oct. Nov. Dec. Jan. Feb.

Month

Goto 

Hove

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Is

nber . .........----- .---....

lendar year

St.. ..-. ------ - -------------- ........ -

ember. 1- 

ejperlok).._V-JLi-'i." 

Mar. Apr.

Secondfoot-days

30 

1,134 

1,283 

SOS

-

Hay

Maximum

40 

43 

44

'-

June

iii «> * i

CM

July

30 

33 

34 

37 

36

36 

38 

38 

37 

36

36 

36 

36 

36 

36

36 

36 

36 

36 

37

37 

37 

37 

37 

37

37 

38 

39 

39 

40 

40

Minimum

30 

40 

12

-

Aug.

40 

40 

40 

41 

41

41 

41 

41 

41 

41

41 

42 

42 

42 

42

42 

42 

42 

42 

42

42 

42 

43, 

43

43

42 

41 

40 

'40 40 

41

Mean

36.6 

41.4 

36.3

-

Sept.

42 

42 

43 

43 

44

43 

43 

43 

43 

40

27 

24 

19 

12

Runoff In 

acre-feet

60 

2,250 

2,540 

1,010

5,360
KLAMMft RIVER BASIN 

"A" panal at Klamath Falls, dreg.

431

Location.--Water-stage recorder, lat. 42°14', long. 121°48', in NEi sec. 30, T. 38 S., R. 

9~E77 300 feet downstream from head gates of canal and 1 mile northwest of Klamath 

Falls. Datum of gage is 4,126.22 feet above mean sea level, Bureau of Reclamation 

datum (levels by Bureau of Reclamation).

Records available.--October 1910 to September 1950. 

Average discharge. 40 years, 202 second-feet.

Extremes.--Maximum daily discharge during year, 1,040 second-feet July 22, 23; no flow 

Oct. 1 to Apr. 17.

1910-50: Maximum daily discharge, 1,100 second-feet June 22, 1945; no flow at times

Remarks. Records good. Canal diverts water from Upper Klamath Lake in NE£ sec. 30, T. 38 

ST7~R. 9 E., for irrigation of lands east of Klamath River on both sides of Lost River. 

Most of water reaches Lost River.

Cooperation. Records furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

ZO

Zl 

22 

23 

24

25

26 

27

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Move

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 1949

ter year 1949-50 .......................

Mar. Apr.

0 

O 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

14 

55 

84

118 

125 

133 

187 

226

252 

309 

374 

389 

381

Secondfoot -days

0 

0 

0

109,036

0 

0 

0 

2,647 

19,933 

23,996 

30,247 

23,495 

12,192

112,510

May

3S8 

358 

335 

308 

297

310 

327 

348 

410 

514

592 

690 

714 

753 

754

808 

836 

824 

835 

825

790 

762 

769 

806 

832

810 

80S 

772 

772 

780 

811

Maximum

0 

0 

0

1,080

0 

0 

0 

369

836 

1,010 

1,040 

1,010 

667

1,040

June

864 

912 

892 

894 

940

971 

947 

922 

919 

901

838 

754 

645 

613 

589

546 

508 

462 

508 

648

718 

817 

887 

888 

822

822 

863 

920 

J976 

1,010

July

1,020 

967 

951 

870 

927

944 

989 

993 

957 

939

905 

884 

899 

929 

943

943 

951 

954 

992 

1,020

1,020 

1,040 

1,040 

1,020 

1,020

1,030 

1,030 

1,030 

1,020 

1,010 

1,010

.Minimum

0 

0 

0

0

0 

0 

0 

0 

297 

462 

870 

624 

176

0

Aug.

1J010 

983 

939 

915 

810

753 

741 

741 

792 

792

761 

703 

675 

703 

722

761 

773 

789 . 

738 

719

752 

783 

746 

726 

707

659 

624 

650 

680 

673 

675

Mean

0 

0 

0

299

0 

0 

0 

88.2 

643 

800 

976 

758 

406

308

Sept.

667 

640 

615 

619 

610

616 

591 

514 

408 

383

375 

382 

377 

389 

375

343

317 

300 

304 

283

279 

278 

300 

299 

294

335 

348 

387 

388 

176

Runoff In 

acre-feet

0 

0 

0

.216,300

0 

0 . 

0 

5,250 

39,540 

47,600 

59,990 

46,600 

24,180

223,200
432 KLAMATH RIVER BASIN

Keno Canal at KLamath Palls, Oreg.

Location. Watt-hour meter, lat. 42°13', long. 121°48', in SVf£ 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 Palls, with staff gage in canal 200 feet above penstock.

Records available. October 1923 to September 1950. 

Average discharge. 27 years, 214 second-feet.

Extremes. Maximum daily discharge during year, 301 second-feet Sept. 24; no flow at times. 

 1923-50: Maximum daily discharge, 339 second-feet Feb. 1/1940; no flow at times.

Remarks. Records good. Watt-hour meter read daily at 12 p.m.; staff gage read once or 

twice daily. Discharge determined by combining flow through power plant, as computed 

from record of electrical output, with flow spilled from canal at wasteway above penstock. Canal diverts water from Upper KLamath Lake at Link River storage dam in SEt 

sec. 30. Water is used for developing power and returned to Link River in SWt sec. 32. 

Plow controlled by gates at head of canal.

Cooperation. Gage readings and record of electrical output furnished by The California 

Oregon rower Co.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

?,

3

4

5

6

7

8

9

10

11

12

13

14

15

Ifi

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

264

266

268

265

270

265

269

267

267

266

266

270

272

270

264

272

272

270

268

266

258

259

267

267

266

266

266

263

270

274

269

NOT.

269

267

266

266

260

265

263

253

256

265

265

870

274

276

276

276

271

271

271

271

265

265

260

263

273

263

262

272

280

276

-

Dec.

274

286

2SO

243

266

264

264

267

262

274

210

258

252

256

263

240

246

246

250

250

249

246

250

254

250

246

237

240

240

243

246

Jan.

249

253

247

249

247

257

258

257

250

249

257

256

258

266

261

263

268

281

283

262

265

269

273

270

271

273

276

282

275

27O

271

Feb.

259

263

263

257

264

266

268

266

269

269

256

268

103

0

0

0

0

0

0

'0

0

0

0

0

0

0

0

0

_

-

Month

October. . .....

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

Calendar year 1949 ......................

iTanuary. ............ ........ ............

February. ................ . . . .;..... .

Haroh ---.-..--.-----".--.-.-......--.......

ft?

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

July. ..............................:.......

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

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

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

16

167

282

258

Apr.

277

255

259

266

251

257

249

251

253

254

259

253

271

266

268

267

267

276

262

263

258

267

25S

260

254

0

0

0

0

0

-

Seoondfoot-days

7,852

98,108

8,166

3,271

6,521 

7,771

5,398

8,486

8,407

80,215

Hay

179

290

283

280

277

272

276

176

126

119

163

271

274

153

273

276

276

277

26S

273

269

273

273

273

273

276

267

267

268

268

272

Maxivun

274

266

303

283

269

2S2

277 

293

264

265

2S8

301

301

June

268

268

265

265

265

266

263

265

267

249

240

283

274

270

280

277

272

279

275

284

281

284

279

264

266

266

93

0

0

195

-

Minima

258

210

12

247

0

0

0 

119

0

0

144

259

0

July

96

0

0

0

0

0

117

281

285

285

279

280

264

280

27S

278

192

0

0

0

109

264

273

273

268

267

267

98

105

272

267

Aug.

266

272

271

276

278

269

27S

273

278

27S

275

275

277

283

284

144

284

279

282

288

286

283

279

276

279

279

278

278

27S

279

279

Mean

267

253

269

263

117

23.3

217 

251

243

174

274

280

220

Sept.

279

276

279

277

279

276

276

272

277

276

278

283

276

276

282

279

284

280

279

284

259

282

28J?

3d!

.262

281

2S6

2S6

291

286

-

Runoff in 

acre-feet

16,430

15,930

15,570

194,600

16,200 

6,490

1,430

12,930 ' 

15,410

14,490

10,710

16,830

16,660

159,100
KLAMATH RIVER BASIN 433

Lost River diversion canal near Olene, Oreg.

Location.--Staff gage above and below head gates at intake of canal at Lost River Dam, lat. 

453 °U9', long. 121°40',' in SWt sec. 29, T. 39 S., R. 10 E., 4 miles southwest of Olene.

Records available!. --May 1912 to September 1950.

Average discharge.--34 years (1912-15, 1919-50), 126 second-feet.

Extremes.--Maximum daily discharge during year, 601 second-feet Feb. 17; no flow at times. 

1912-50: Maximum daily discharge, 1,280 second-feet Jan. 30, 1942; no flow at times.

Remarks.--Records fair. Discharge computed from daily record of openings and head on 

gates. Canal diverts water from Lost River and discharges into Klamath River to aid in 

relamation 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 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

-. 23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

-

Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

65 

175

181 

160 

285 

125 

125

125 

125 

126' 

134 

177

200 

260 

363 

435 

405

376 

335 

284 

231 

185 

172

Feb.

167 

162 

154 

136 

170

195 

245 

284 

276 

266

263 

242 

240 

231 

241

289 

601 

547 

532 

504

466 

384 

294 

298 

305

317 

328 

327

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

MAV

June 

July 

Augu

Sept

Wa

lendar year 1949 

&ry

ter year 1949-50 .......................

Mar.

307 

301 

288 

285 

256

222 

243 

255 

261 

255

254 

244 

237 

226 

196

143 

138 

182 

157 

127

143 

187 

304 

330 

312

297 

282 

242 

116 

75 

64

Apr.

23 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot -days

0 

0 

0

30,528

5,049 

8,464 

6,929 

23 

1,885 

0 

0 

0 

0

22,350

May

0 

0 

36 

10 

62

104 

137 

146 

150 

142

120 

105 

77 

51 

15

8 

20 

65 

88 

SO

83 

77 

110 

115 

70

14 

0 

0 

0 

0 

0

Maximum

0 

0 

0

703

435

601 

330 

23 

150 

0 

0 

0 

0

601

June July

Minimum

0 

0 

0

0

0 

136 

64 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

83.6

163 

302 

224 

.8 

60.8 

0 

0 

0 

0

61.2

Sept.

Runoff In 

acre-feet

0 

0 

0

60,560

10,010 

16,790 

13,740 

46 

3,740 

0 

0 

0 

0

44,330
434 KLAMATH RIVER BASIN

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

Location. Staff gage above rectangular gate at wasteway, lat. 42°09', long. 121°42', in 

SWiTsec. 30, T. 39 S., R. 10 E., 5 miles southwest of Olene.

Records available. April 1931, when diversion began, to September 1950. 

Average discharge. 20 years, 36.1 second-feet.

Extremes. Maximum daily discharge during year, 426-second-feet Apr. 8; no flow at times. 

1931-50: Maximum daily discharge, 564 second-feet Apr. 13, 1933; no flow at times.

Remarks. Records fair. Discharge computed from daily record of gate openings and gage 

readings at wasteway. Canal was built to divert water from Lost River to Klamath River 

and thereby aid in reclamation of bed of Tule Lake. (See record for Lost River diversion canal near Olene.} Beginning in April 1931, water has been diverted at times from 

Klamath River and released into drain which empties into Lost River, from which it is 

rediverted for irrigation of lands near Tule Lake. Beginning in June 1949, records include estimated pumpage by Miller Hill Pumping Plant, which operates at times.

Cooperation. Records furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23

24 

25

28 

27

28 

29 

30

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

10 

30 

30 

30 

30

Jan.

30 

30 

40 

35 

30

30 

30 

30 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

mber .........----------------.----.--

lendar year 1949

Mar. Apr.

0 

66 

145 

208 

245

309 

415 

426 

425 

420

368 

342 

342 

328 

280

238 

196 

222 

262 

299

265 

195 

155 

122 

127

128 

128 

114 

100 

86

Secondfoot -days

0 

0 

130

14,692

255 

0 

0 

6,956 

415 

' 4,641 

1,801 

0 

0

14,198

May

77 

33 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

15 

25 

46 

80 

139

Maximum

0 

0 

30

425

40 

0 

0 

426 

139 

373 

184 

0 

0

426

June

159 

191 

208 

212 

261

304 

332 

373 

338 

241

135 

103 

20 

0 

0

0 

0 

0 

0 

0

37 

95 

164 

198 

185

154 

189 

250 

244 

248

July

179 

168 

111 

96 

95

79 

98 

89 

70- 

70

77 

161 

134 

114 

35

35 

35 

35 

35 

35

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

4.2

40.3

8.2 

0 

0 

232 

15.4 

155 

58.1 

0 

0

38.9

Sept.

Runoff In 

acre-feet

0 

0 

258

29,150

506 

0 

0 

13,800 

823 

9,210 

3,570 

0 

0

28,170
KLAMATH RIVER BASIN 435

Fall Creek at Copco, Calif.

Location.--Water-stage recorder, lat. 41°58', long. 122°22', in NE^ sec. 36, T. 48 N., R.

 b W., 1,500 feet upstream from mouth and 0.8 mile south of Fall Creek power plant and 

Copco post office.

Records available. July 1928 to September 1950. 

Average discharge. 22 years, 34.9 second-feet.

Extremes. Maximum discharge during year, 120 second-feet Mar. 18 (gage height, 2.02 feet),

 from rating curve extended above 65 second-feet on basis of slope-area determination at 

gage height 2.42 feet; minimum,9.0 second-feet July 15; minimum daily, 32 second-feet 

Dec. 11-15, Aug. 8, 18, 19.

1928-50: Maximum discharge observed, 350 second-feet Jan. 7, 1948 (gage height, 3.22 

feet), from rating curve extended above 65 second-feet on bafeis of slope-area, determination at gage height 2.42 feet; minimum, that of July 15, 1950; minimum daily, 24 second-feet on many days during June to September 1937.

Remarks.--Records good. One diversion above station for irrigation. Occasional diurnal 

Fluctuation caused by power plant and fish ponds half a mile above station.

Cooperation. Water-stage recorder inspected by employee of The California Oregon Power Co.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, In second-feet) 

(Backwater from debris Oct. 26 to Mar. 13)

1.2 31 1.5 59 T 

1.3 40 1.7 80 

1.4 49 2.0 117

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

2S 

29 

30 

31

Oct.

34 

34 

35 

36 

35

36 

36 

36 

37 

36

36

36 

36 

35 

36

36 

35 

35 

35 

36

35 

d35 

d35 

d35 

d35

35 

35 

35 

35 

36 

36

Nov.

35 

34 

34 

36 

36

36 

36 

36 

39 

37

35 

35 

35 

35 

35

35 

34 

34 

34 

34

34 

34 

34 

34 

34

34 

34 

34 

34 

35

Dec.

35 

34 

34 

34 

34

34 

34 

33 

33 

33

32 

32 

32 

32 

32

33 

33 

33 

33 

33

33 

34 

34 

34 

34

34 

34 

34 

34 

34 

34

Jan.

34 

34 

33 

34 

34

33 

34 

35 

35 

36

35 

35 

34 

36 

35

36 

37 

43 

41 

43

53 

55 

69 

49 

43

41 

40 

39 

37 

36 

36

Feb.

36 

35 

36 

39 

58

69 

48 

44 

43 

47

45 

44 

44 

47 

53

67 

60 

56 

54 

52

49 

48 

50 

58 

58

58 

55 

53

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Hair

June 

July 

Augu 

Sept

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

Mar.

52 

51 

51 

52 

56

53 

51 

49 

49 

4S

46 

45 

44 

44 

44

44"

5F 

64* 

92' 

65

61 

7I>

It 

61

60 

56 

56 

53 

 53 

54

Apr.

55 

55 

56 

55 

55

57 

56 

57 

54 

52

51 

51 

51 

50 

50

~~ 48 

 47 

47 

46 

45

* s

$2^:42 

41 

40 

40

Secondfoot-days

1,098 

1,046 

1,036

13,149

1,215 

1,406 

1,705 

1,464 

1,137 

1,045 

1,058 

1,038 

1,044

14,292

May

43 

41 

40 

39 

38

38 

38 

38 

37 

36

36 

36 

36 

37 

3S

36 

36 

36 

36 

36

36 

36 

35 

36 

36

36 

36 

35 

34 

34 

34

Maximum

37 

39 

35

108

69 

69 

92 

57 

43 

37 

35 

35 

37

92

June

35 

34 

34 

34 

34

33 

34 

34 

33 

34

36 

36 

36 

36 

36

37 

36 

36 

35 

35

35 

34 

35

35 

35

34 

35 

34

35 

35

July

34 

34 

34

33 

34

34 

34 

34 

34 

34

34 

34 

34 

34 

33

34 

34 

34 

33 

34

34 

34

35 

35 

34

34 

35 

35 

35 

35 

35

Aug.

35 

34 

34 

34 

34

34 

33 

32 

33 

34

34 

34 

34 

34 

34

34 

34 

32 

52 

33

34 

33 

33 

33

33

33 

33 

34 

34 

33 

33

Sept.

34 

34 

34 

34 

33

33 

34 

35 

35 

34

34 

34 

34 

34

34

35 

37 

36 

36 

36

36 

35

35 

36 

35

35 

35 

55 

36 

36

Mlnl^u. Kean *£«£

J4 35.4 2,180 

34 34.9 2,070 

32 33.4 2,050

29 36JL 26,070

33 V39.2 2,410 

35 50.2 2,790 

44 55.0 3,380 

40 48.8 2,900 

34 36.7 2,260 

33 34.8 2,070 

33 34. 1, 2,100 

32 33.5 2,060 

33 34.S 2,070

32 39.2 28,340

d Doubtful gage-height record; discharge Interpolated.
436 KLAMATH RIVER BASIN

Beaver Creek near Lilyglen, Oreg.

Location.--Water-stage 'recorder, lat. 42°13', long. 122°22', in SW-J- sec. 33, T. 38 S., R. 

4 E. , 1 mile downstream from Willow Creek and 7 miles southeast of former postoffice of 

Lilyglen. Datum of gage is 4,406.78 feet above mean sea level, datum of 1929 (levels 

by Bureau of Reclamation).

Drainage area.--30.3 square miles.

Records available. October 1948 to September 1950. April 1916 to June 1919 (fragmentary) 

at site aoout i mile upstream, below Willow Creek, in reports of Geological Survey. 

October 1930 to May 1931 at site about 1 mile upstream published as Beaver Creek near 

Ashland in reports of State engineer.

Extremes. Maximum discharge during year, 197 second-feet Apr. 21; maximum gage height, 

 4.iib' feet Jan. 22 (ice Jam); no flow Aug. 16 to Sept. 17, Sept. 20-25.

1916-19, 1930-31, 1948-50: Maximum discharge, 525 second-feet Mar. 24 or 25, 1919; 

maximum gage height, 4.71 feet Feb. 26, 1949 (ice jam); no flow at times.

Remarks. Records good except those for periods of ice effect, which are poor, 

diversion upstream.

Revisions. W 1151: Drainage area.

Rating table, water year 1949-50, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Aug. 3 to Sept. 30)

No large

1.1 0 1.6 1.2 2.1 15 2.6 72 

1.2 .1 1.7 2.2 2.2 22 2.8 113 

1.3 .2 1.8 3.9 2.3 3O 3.0 168 

1.4 .4 1.9 6.5 2.4 41 3.1 2OO 

1.5 .7 2.0 10 2.5 55

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

0.1 

.1 

.1

.4

.4 

.6 

.6 

.6 

1.8

1.1 

.8 

.6

.4

.4 

.3 

.4 

.3 

.5

.'e

.5 

.4 

.4 

.4

.4

.4 

.4 

.4

.4 

.5

Nov.

0.4 

.4 

.4

.4

..4

.4 

.7 

1.5 

1.7

1.7 

1.9 

1.4

.9

.9 

.8 

.7 

.9 

1.0

.8 

.9 

.8 

-.8 

.6

.8 

1.3 

3.0 

1.6 

1.8

Dec.

1.4 

1.4 

1.5

1.4

1.4 

1.4 

1.7 

1.8 

1.5

1.0 

1.1

1.1

1.3

1.3 

1.1 

1.1 

.9 

b_.8

b.8 

b.9 

bl.O 

1.1 

1.1

1.2 

1.2 

1.3 

1.3 

1.4 

1.3

Jan.

1.2 

1.3 

1.3

1.4

1.4 

1.4 

1.3 

1.3 

1.2

1.1 

1.1 

 bl.l

1.1

1.1 

1.1 

1.1 

1.1 

b!7

b70 

b65 

b50 

b35 

b25

bl8 

bl3 

blO 

b7 

b5 

b4

Feb.

b5 

b6 

b8 

bll 

b!7

b25 

b!8 

b!3 

blO 

b7

b6 

b5 

b5 

b6 

b!3

b35 

b28 

b22 

b!8 

b!5

b!2 

blO 

b!5 

b25 b60'

b65 

»b52 

b47

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lender year 1949

ter year 1949-50 .......................

Mar.

b42 

b41 

b48 

b58 

b50

b46 

b42 

b40 

b37 

34

32 

b3JL 

29 

28 

28

37 

83 

48 

57 

47

54 

85 

51 

51 

42

40 

36 

33 

32 

47 

70

Apr.

87 

83 

78 

87 

111

111 

93 

82 

74 

76

82 

95 

106

%

109 

130 

141 

150 

171

181? 

178 

159 

141 

133

128 

133 

116 

106 

102

May

118 

104 

95^. 

85 

80

74 

64 

54 

51 

52

58 

70 

87

: is9

78 

7O 

62 

52 

49

" 45 

40 

36 

33 

28

24 

21 

19 

17 

18 

14

/Qot%s » -

14.8 1.8 

30.6 3.0 

38.7 1.8

9,557.8 228

342.1 70 

559 65 

1,399 85 

3,437 181 

1,769 118 

186.8 14 

10.3 .8 

2.3 .2 

1.4 .2

7,791.0 . 161

June

11 

9.3 

. 8.2 

7.6 

6.5

6.8 

10 

9.3 

7.9 

9.0

9.3 

14 

10 

7.9 

6.5

6.8 

7.9 

6.0 

4,7 

3.7

3.6 

3.0 

2.7 

3.9 

3.6

2.2 

1.8 

1.5 

1.1 

1.0

July

0.8 

.8 

.7 

.7 

.6

.5 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3

.3

.2 

.2 

.2 

.2 

.2

.2 

.1 

.2 

.2

.2

.2 

.2 

.2

.2 

.2

.2

Aug.

O

0 

0 

0

0 

0 

O 

0 

0

0 

0 

0 

0 

0 

0

Minimum Mean

O.I O.48 

.4 1.02 

.8 1.25

0 26.2

1.1 11.0 

5 20.0 

28 45.1 

74 115 

14 57.1 

1.0 6.23 

.1 .33 

0 .07 

0 .05

0 21.3

Peak discharge (base, 150 sec. -ft.). --Apr. 21 (10 p.m.) 197 sec. -ft.

.2 

.1 

.1 

.2 

.2

.2 

.1 

.1 

.1 

.1

.2 

.2 

.1 

.1 

.1

.1 

.1

Sept.

0 

O 

O 

0 

O

0 

0 

0 

O 

O

O 

0

p0 

O

.1 .1

.2.1.1

.1

0 

0 

0

.1 

.1

.2 

.1 

.1 

.1

Runoff In 

acre-feet

29 

61 

77

18,960

679 

1,110 

2,770 

6,820 

3,510 

371 

20 

4.6 

2.8

15,450

* winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
KIAMATH RIVER BASIN 

Keene Creek at Hyatt Prairie, near Ashland, Oreg.

437

Location.--Water-stage recorder, lat. 42°10', long. 122°29', in SW£ sec. 16, T. 39 S., R. 

3TT77 a quarter of a mile upstream from Burnt Creek, half a mile downstream from Hyatt 

Prairie Reservoir Dam, and 12 miles east of Ashland.

Drainage area.--IS square miles, approximately.

Records available.--November 1948 to September 1950. April 1917 to June 1922 (fragmentary) 

at site hall' a mile upstream; records not equivalent owing to reservoir losses.

Extremes.--Maximum discharge during year, 82 second-feet Sept? 1 (gage height, 3.24 feet); 

minimum, 0.1 second-foot on several days in September.

1917-22, 1948-50: Maximum discharge, 315 second-feet (estimated) Apr. 21, 1922 

(gage, height, 4.72 feet, backwater from ice, site and datum then in use); no flow at 

times.

Remarks. Records good. Regulation since December 1922 by Hyatt Prairie Reservoir (capacity, 16,180 acre-feet). Practically entire flow diverted about 1 mile below station 

by Keene Creek for irrigation near Ashland and Talent in the Rogue River Basin.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.68 0.1 2.2 2.2 2.9 32 

1.8 .3 2.4 5.1 3.0 43 

1.9 .5 2.6 11 3.1 57 

2.0 .8 2.7 16 3.2 74 

2.1 1.4 2.8 23 3.3 95

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.3 

.3 

.3 

.5 

.4

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Nov.

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

Dec.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Jan.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.5 

.4 

.4

.6 

.6 

.6 

.5 

.4

.4 

.4 

.4 

.3 

.3 

.3

Feb.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.3 

.3

.4

.4 

.5 

.5 

.5

.5 

.5 

.5 

.6 

.9

.9 

1.0 

1.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Ha

her. ....................................

mber. ...................................

lendar year 1949

ter year 1949-50 .......................

Mar.

1.0 

1.0 

1.0

1.1 

1.1

1.0 

.9 

.9

.8

.7

.7 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 .6'

.7 

.7 

.7 

.7 

.6

.6 

.6 

.6 

.6 

.7 

.9

Apr.

1.0 

1.1 

1.2 

1.2 

1.3

1.3 

1.2 

1.2 

1.2

1.1

1.1 

1.2 

1.2 

1.2 

1.2

1.3 

1.6 

1.7 

2.0 

2.0

2.0 

2.0 

2.0 

1.9 

1.9

1.8 

1.8 

1.7 

1.7 

1.6

Hay

1.6 

1.5 

1.5 

1.4 

1.4

1.2 

1.2 

1.2 

1.2 

1.2

.2 

.3 

.4 

.4 

.2

.1 

.0 

1.0 

.9 

.8

.8 

.7 

.6 

.6 

.6

.5 

.5 

.4 

.4 

.4 

.4

fSy* »«* 

7.1 0.5 

6.0 .2 

6.2 .2

6,024.5 73

9.6 .6 

12.6 1.0 

23.0 1.1 

44.7 2.0 

30.6 1.6 

1,088 39 

1,161 43 

1,917 78 

353.0 80

4,658.8 80

June

10 

29 

38 

38 

38

38 

38 

38 

38 

38

38 

38 

38 

38 

36

36 

36 

36 

36 

23

39 

39 

39 

39 

39

' 39 

39 

39 

39 

39

July

39 

39 

39 

39 

39

39 

39 

39 

39 

39

38 

38 

38 

38 

38

38 

38 

36 

36 

36

36 

36 

36 

36 

35

35 

35 

35 

35 

35 

43

Aug.

a46 

a26 

36 

53 

60

60 

59 

57 

64. 

67

66 

54 

50 

54 

66

64 

64 

62 

69 

78

78 

74 

72 71'

71

69 

69 

66 

64 

62 

66

Sept.

80 

76 

69 

62 

-39

2.6 

2.4 

3.3 

4.1 

3.9

3.7 

2.0 

2.0 

.7 

.2

.2 

.2 

.2 

.2

.1

.1 

.1 

.1

.1 

.1

.2 

.2

.1 

.1 

.1

Mining Mean *%%£

0.2 0.23 14 

.2 .20 12 

.2 .20 12

.2 16.5 11,960

.2 .31 19 

.2 .45 25 

.6 .74 46 

1.0 1.49 89 

.4 .99 61 

10 36.3 2,160 

35 37.5 2,300 

26 61.8 3,800 

.1 11.8 700

.1 12.8 9,240

a No gage-height record; discharge computed on basis of recorded range In stage and record of gate 

operations at Hyatt. Prairie Reservoir.

207481 O - 52 - 29
438 KLAMATH RIVER BASIN

Shasta River near Yreka, Calif.

Location.--Water-stage recorder, lat. 41 0 49' , long. 122°35',, in NE^ sec. 24, T. 46 N., R. 

 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 1950.

Average discharge.--13 years (1933-41, 1945-50), 149 second-feet.

Extremes.--Maximum discharge during year, 924 second-feet Jan. 19 (gage height, 4.92 

reet); minimum, 7.3 second-feet July ?3.

1933-41, 1944-50: 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. Flow partly regulated by reservoir above station. Many diversions above station for Irrigation.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in seoond-feet)

2.4 4.8 2.8 34 3.3 140 

2.5 9.0 2.9 48 3.6 260 

2.6 15 3.0 65 4.0 430 

2.7 23 3.1 85 4.3 575

Discharge, in second-feet, water year October 194-9 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oot.

131 

144 

134 

152 

160

160 

164 

160 

160 

168

168 

168 

160 

160 

160

156 

152 

148 

148 

144

140 

140 

144 

144 

144

148 

140

144 

148 

148 

148

Nov.

156 

152 

152 

148 

148

148 

148 

152 

168 

172

172 

164 

160 

160 

160

160 

160 

156 

156 

156

156 

160 

160 

160 

160

160 

160 

160 

160 

160

Dec.

160 

160 

16O 

16O 

160

16O 

160 

160 

160 

160

160 

160 

160 

164 

164

164 

164 

164 

16O 

160

156 

152 

152 

152 

156

156 

156 

156 

152 

152 

152

Jan.

152

152 

152 

a!52 

a!52

a!52 

a!52 

a!52 

a!52 

a!52

al52 

a!52 

156 

131 

152

164 

168 

220 

497 

568

480 

439 

555 

430 

280

228 

216 

212 

204 

196 

184

Feb.

160 

148 

148 

180 

344

430 

284 

248 

228 

224

232 

204 

196 

196 

200

224 

256 

236 

224 

224

212 

200 

204 

204 

212

224 

220 

220

Month

Ooto 

Nove

Dace

Ca

Janu 

Febr 

Marc 

Apri

Ifair

June 

July 

Augu 

Sept

Da

mber. ..................................

lendar year 1949 

ary

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

ter year 1949-50 ......................

Mar.

220 

212 

212 

220 

228

232 

228 

212 

196 

196

184 

176 

172 

184 

172

148 

140 

168 

260 

280

252 

276 

288 

280 

26O

240 

224 

204 

172 

152 

148

Apr.

137 

156 

164 

156 

168

148 

168 

208 

240 

212

180 

144 

137 

131 

116

113 

131 

125 

110 

98

113 

105 

90 

85 

83

73 

67 

62 

67 

137

Secondfoot-=-days

4,685 

4,744 

4,912

45,046.2

7,304 

6,282 

6,536 

3,854 

1,462 

1,858 

565.9 

625.0 

2,233.0

45,040.9

May

75 

81 

81 

85 

79

60 

60 

85 

88 

85

69 

48 

38 

40 

44

44 

33 

31 

31 

34

34 

34 

27 

23 

22

31 

21 

22 

17 

19 

21

Maximum

168 

172 

164

435

568 

430 

288 

240 

88 

116 

58 

55 

134

568

June

17 

18 

18 

19 

25

34 

44 

58 

50

51

75 

102 

108 

102 

102

113 

116 

98 

79 

38

56 

56 

58 

45 

62

95 

85 

55 

45 

34

Minimum

131 

148 

152

9.0

131 

148 

140 

62 

17 

17 

7.7 

9.0 

9.0

7.7

July

27 

28 

28 

31 

23

31 

31 

20 

14 

17

17 

19 

24 

38 

21

21 

14 

11 

11

11

12 

9.0 

7.7 

9.6 

10

10 

9.6 

13 

12 

19 

17

Aug.

14 

14 

14 

13 

19

21 

19 

26 

32 

31

47 

55 

34 

25 

32

32 

21 

12 

11 

10

9.0 

13 

14 

11 

17

14 

14 

14 

16 

12 

9.0

Mean

151 

158 

158

123

236 

224 

211 

128 

47.2 

61.3 

18.3 

20.2 

74.4

125

Sept.

a9.0 

alO 

alO 

all

all

a!2 

12 

18 

21 

38

44 

41 

32 

63 

105

110 

119 

134 

125 

119

122 

122 

119 

125 

128

131 

116 

110 

108 

108

Runoff in 

ao re-feet

9,290 

9,410 

9,740

89,340

14,490 

12,460 

12,960 

7,640 

2,900 

3,650 

1,120 

1,240 

4,430

89,530

Peak discharge (base, 300 see. -ft. ). Jan. 19 (11:30 D.m.) 924 see. -ft.: Jan. 23 (7:30 p.m.) 735

sec.-ft.; Pel). 5 (8 p.m. ) 642 sec.-ft.

a No gage-height record; discharge interpolated or computed on basis of recorded range in stage.
KLAMATH RIVER BASIN 439

Scott River near Fort Jones, Calif.

Location. Water-stage recorder, lat. 41°38'35", long. 123 e 00'35", in NW^ sec. 28, T. 44 

N., K. 10 W., 150 feet south of road from Fort Jones to Scotts Bar, 1.8 miles upstream 

from Snow Creek, and 10.5 miles downstream from Fort Jones. Datum of gage is 2,625.80 

feet above mean sea level (levels by Corps of Engineeers).

Drainage area. 656 square miles.

Records available. December 1941 to September 1950.

Extremes. Maximum discharge during year, 2,520 second-feet Mar. 19 (gage height, 7.09 

reet); minimum, 43 second-feet Oct. 3, 5.

1941-50: Maximum discharge, 7,340 second-feet Jan. 22, 1943 (gage height, 11.65 

feet), from rating curve extended above 3,600 second-feet; minimum, 36 second-feet 

Oct. 3, 1947.

Floodmarks indicate stages of about 14 feet, dates not known.

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

Many small diversions for irrigation in Scott Valley during summer.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Mar. 19 Mar. 20 to Sept. 30

1.3 4O 2.2 133 4.0 575 1.4 43 2.6 179 4.4 

1.4 47 2.6 192 4.6 845 1.5 50 3.0 251 5.2 

1.6 64 3.0 270 5.6 1,440 1.8 76 3.3 317 6.3 

1.8 84 3.5 400 6.9 2,370 2.2 121 3.6 410

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

45 

45 

44 

45 

44

44 

56 

53 

50 

50

48 

47 

46 

46 

46

46 

46 

47 

46 

46

46 

46 

46 

47 

46

48 

49 

50 

53 

53 

54

Nov.

53 

53 

53 

53 

53

52 

53 

53 

65 

80

82 

79 

77 

76 

76

75 

75 

76 

75 

74

73 

71 

72 

72 

77

76 

91 

288 

245 

170

Dec.

145 

126 

116 

110 

114

110 

109 

106 

101 

95

91 

88 

86 

86 

86

86 

88 

89 

90 

88

84 

81 

79 

80 

84

85 

84 

84 

84 

86 

85

Jan. '

83 

82 

78 

77 

77

79 

81 

83 

83 

88

89 

88 

91 

77 

94

102 

3250 

al,200 

al,100 

31,000

31,300 

al,600 

a2,000 

1,740 

1,110

830 

700 

599 

493 

465 

409

Fsb.

391 

370 

365 

373 

444

785 

700 

563 

532 

504

496 

465 

440 

444 

504

635 

790 

722 

678 

647

611 

583 

579 

766 

1,070

1,120 

1,120 

1,060

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949 

&i*y

wtoer.. ................................

ter year 1949-50 ......................

Mar.

999 

960 

988 

1,100 

1,130

1,080 

960 

872 

790 

727

678 

619 

591 

567 

535

558 

1,690 

1,920 

2,330 

1,840

1,540 

1,790 

1,680 

1,620 

1,420

1,250 

1,120 

1,000 929^ 

902 

907

Apr.

984 

1,110 

1,150 

1,090 

1,070

1,180 

1,150 

1,070 

951 

885

825 

858 

1,050 

978 

902

896 

951 

1,040 

1,140 

1,400

1,660 

1,660 1,460- 

1,290 

1,200

1,160 

1,210 

1,190 

1,070 

995

Seoondfoot-days

1,478 

2,568 

2,926

136,516

16,148 

17,757 

35,092 

33,575 

35,057 

20,015 

4,502 

2,210 

1,587

172,915

May

1,000 

946 

846 

760 

694

632 

580 

544 

524 

524

596 

841 

1,200 

1,540 

1,660

1,500 

1,520 

1,320 

1,150 

1,090

1,210 

1,390 

1,520 

1,560 

1,540

1,490 

1,530 

1,380 

1,250 

1,320 

1,400

Maximum

56 

288 

145

2,300

2,000 

1,120 

2,330 

1,660 

1,660 

1,360 

271 

94 

60

2,330

June

1,360 

1,270 

1,100 

995 

968

890 

780 

662 

600 

690

698 

716 

685 

649 

649

690 

685 

640 

620 

620

608 

540 

473 

428 

392

360 

339 

317 

300

291

Minimum

44 

52 

79

42

77 

365 

535 

825 

524 

291 

80 

57 

47

44

July

271 

253 

241 

235 

224

209 

199 

190 

176- 

168

157 

147 

138 

133 

128

126 

122 

119 

115 

109

107 

99 

96 

95 

102

99 

95 

93 

93 

83 

80

730 

1,170 

1,900

Aug.

80 

83 

75 

a72 

378

a77 

a75 

a72 

a70 

79

94 

79 

76 

74 

73

72 

71 

71 

70 

70

69 

71 

69 

67 

62

57 

60 

62 

61 

62 

59

Mean

47.7 

85.6 

94.4

374

521 

634 

1,132 

1,119 

1,131 

667 

146 

71.3 

52.9

474

Sept.

58 

52 

52 

59 

60

58 

56 

55 

56 

52

55 

56 

58 

58 

49

47 

49 

52 

51 

49

48 

48 

48 

51

51

52 

52 

51 

52 

52

Runoff In 

acre-feet

2,930 

5,090 

5,800

270,800

32,.03O 

35,320 

69,60O 

66,600 

69,530 

39,700 

8,950 

4,380 

3,150

343,000

Peak discharge (base. 1.600 sec. -ft. ). Jan. 23 {7 p.m.) 2,410 sec. -ft. ; Mar. 19 (10:30 a.m.)

 30 p. 

1^770 sec.-ft.; May 24 (8 a.m.) l,63o'sec.-ft.

a No gsge-height record; discharge computed on basis of records for Trinity River 3t Lewiston.
440 KLAMATH RIVER BASIN

Salmon River at Somesbar, Calif.

Location. Water-stage recorder, lat. 41°23' , long. 123°28 ! , in NW£ sec. 2, T. 11 N., R. 

b a,., 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 1950.

Average discharge.--24 years (1911-13, 1927-29, 1930-50), 1,534 second-feet.

Extremes. Maximum discharge during year, 12,300 second-feet Mar. 17 (gage height, 9.30 

reet); minimum, 142 second-feet Oct. 4.

1927-50: 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 1949-50 (gage height, In feet, 

and discharge, in seoond-feet)

Oct. 1 to May 14 May 15. to Sept. 30

2.7 110 3.8 970 7.0 6,800 2.8 160 4.0 1,260 

2.8 145 4.3 1,580 8.0 9,150 2.9 208 4.5 1,920 

2.9 190 4.9 2,480 8.5 10,400 ' 3.0 265 5.0 2,710 

3.0 245 5.6 3,750 3.2 415 6.2 5,000 

3.3 470 6.4 5,440 3.6 805

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

JO

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

154 

150 

145 

142 

168

176 

245 

201 

190 

459

315 

245 

212 

201 

190

181 

176 

172 

176 

176

176 

172 

172 

168 

168

163 

163 

163 

168 

163 

158

Nov.

158 

158 

158 

154 

154

154 

154 

163 

412 

488

390 

382 

259 

252 

259

273 

280 

266 

245 

234

228 

218 

234 

315 

308

287 

1,020 

2,370 

1,010 

740

Dec.

580 

488 

422 

390 

524

430 

406 

382 

368 

360

330 

301 

315 

301 

301

308 

398 

454 

446 

360

330 

322 

375 

368 

338

330 

322 

315 

338 

390 

352

Jan.

338 

338 

273 

273 

301

273 

308 

322 

330 

414

414 

375 

414 

506 

430

438 

1,130 

9,090 

5,460 

4,850

6,810 

7,060 

7,950 

5,800 

3,750

2,750 

2,400 

2,110 

1,810 

1,690 

1,480

Feb.

1,360 

1,260 

1,280 

1,480 

1,780

2,850 

2,590 

2,160 

1,920 

1,860

1,810 

1,710 

1,660 

1,720 

2,060

2,770 

3,000 

2,620 

2,430 

2,300

2,120 

2,000 

1,990 

3,090 

3,830

3,750 

3,530 

3,260

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

May.

June 

July 

Augu 

Sept

Wa

raber. ...........------------- .......

lendar year 1949

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

ember. . .. 

ter year 1949-50 .......................

Mar.

3,000 

2,890 

3,070 

3,410 

3,570

3,290 

2,870 

2,620 

2,450 

2,200

2,120 

1,960 

1,840 

1,750 

1,680

2,100 

9,330 

7,490 

10,200 

7,650

6,060 

6,870 

5,900 

5,400 

4,750

4,140 

3,670 

3,270 

3,030 

3,000 

3,240

Apr.

3,

3, 

3, 

3, 

3,

3, 

3, 

3, 

2, 

2,

2, 

2, 

3, 

3, 

2,

2, 

3, 

3, 

3, 

4,

5, 

4, 

4, 

3, 

3,

3, 

3,

3, 

3, 

3,

Secondfoot -days

5,908 

11,723 

11,644

437,874

69,887 

64,190 

124,820 

105,330 

111,690 

58,790 

18,277 

7,040 

5,400

594,699

Peak discharge (base, 5,700 sec. -ft.). Jan. 18 (9; 30

sec. -ft.; Mar. 17 (12 m.) 12,300 sec. -ft.

610 

810 

610 

350 

490

910 

510 

160 

870 

670

560 

890 

630 

120 

890

890 

070 

390 

850 

770

070 

770 

140 

670 

590

550 

710 

550 

200 

030

May

3,110 

2,850 

2,540 

2,320 

2,220

2,140 

2,020 

1,990 

2,020 

2,170

2,700 

3,650 

4,430 

5,020 

4,980

4,560 

4,540 

3,800 

3,430 

3,570

4,120 

4,710 

4,830 

4,770 

4,710

4,710 

4,410 

3,680 

3,590 

3,980 

4,120

Maximum

459 

2,370 

580

5,440

9,090 

3,830 

10,200 

5,070 

5,020 

3,900 

1,140 

2S6 

242

10,200

June

3,900 

3,530 

3,050 

2,880 

2,740

2,520 

2,120 

1,890 

1,780 

2,170

2,230 

2,310 

2,020 

1,920 

1,920

1,890 

1,750 

1,710 

1,710 

1,780

1,750 

1,520 

1,420 

1,340 

1,210

1,150 

1,130 

1,140 

1,150 

1,160

July

1,140 

1,080 

1,020 

998 

932

847 

794 

752 

721 

680

650 

600 

581 

552 

534

514 

487 

469 

460 

442

424 

407 

391 

383 

375

359 

351 

343 

335 

335 

321

Aug.

286 

286 

279 

272 

272

272 

265 

259 

254 

248

254 

248 

236 

236 

231

219 

219 

208 

208 

198

198 

194 

198 

198 

198

194 

189 

184 

184 

179 

174

Minimum Mean

142 191 

154 391 

301 376

124 1,200

273 2,254 

1,260 2,292 

1,680 4,026 

2,560 3,511 

1,990 3,603 

1,130 1,960 

321 590 

174 227 

160 180

142 1,629

Sept.

170 

165 

160 

160 

1-60

160 

160 

160 

174 

179

174 

179 

179 

174 

170

170 

203 

242 

219 

203

194 

184 

179 

174 

174

189 

198 

189 

179 

179

Runoff in 

acre -feet

11,720 

23,250 

23,100

868,500

138,600 

127,300 

247,600 

208,900 

221,500 

116,600 

36,250 

13,960 

10,710

1,179,000

a.m.) 11,500 sec. -ft.; Jan. 23 (12 m.) 8,980
KLAMATH RIVER BASIN 441 

Trinity River at Lewiston, Calif.

Location. Water-stage recorder, lat. 40°42', long. 122°48', in NE£ sec. 19, T. 33 N., R.

tf'w., at highway bridge at Lewiston, 0.8 mile downstream from Deadwood Creek. Datum of

gage is 1,794.10 feet above mean sea level, datum of 1929. 

Drainage area. 724 square miles. 

Kecoras available. August 1911 to September 1950. 

Average aiscnarge. 39 years, 1,523 second-feet, 

jsxtremes. Maximum discharge during year, 6,360 second-feet Apr. 21 (gage height, 11.08

Feet); minimum, 93 second-feet Sept. 7.

1911-50: 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. Diversions above station for irrigation, power, and placer 

 SIHIhg. 

Revisions. W 331: 1911 (August to December). Revised figures of discharge, in secondreet, for period of no gage-height record in the water year 1949, superseding those

published in Water-Supply Paper 1151, are given herewith:

May 3.......4,500

4.......4,000

May 5........3,700

6........3,800

Month

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

Secondfoot-days

134,330 

549,724

Maximum

8,520 

14,500

Minimum

2,690 

120

Mean

4,333 

1,506

Runoff in 

acre-feet

266,400 

1,091,000

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Feb. 26-28)

Oct. 1 to Feb. 28 Mar. 1 to Sept. 30

4.4 128 6.1 514 8.0 1,730 4.1 96 5.6 350 8.0 1,760 

4.6 157 6.5 680 8.5 2,230 4.3 117 6.0 445 8.5 2,290 

4.9 208 6.8 835 9.0 2,810 4.5 144 6.5 630 9.0 2,920 

5.2 268 7.0 950 9.5 3,500 4.8 191 7.0 910 10.0 4,380 

5.6 362 7.4 1,220 5.2 267 7.5 1,300 10.8 5,810

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

144 

141 

135 

132 

131

135 

145 

152 

151 

187

206 

187 

170 

162 

157

154 

151 

143 

152 

156

159 

162 

159 

162 

160

157 

156 

154 

154 

152 

151

Nov.

151 

151 

150 

146 

148

146 

148 

160 

278 

384

317 

278 

260 

255 

258

260 

258 

251 

239 

227

218 

214 

210 

249 

260

245 

283 

750 

528 

390

Dec.

331 

298 

270 

255 

264

251 

243 

266 

255 

247

233 

212 

216 

221 

229

237 

270 

278 

285 

258

233 

241 

241 

245 

237

227 

225 

223 

223 

229 

221

Jan.

206 

206 

199 

187 

206

194 

. 206 

218 

235 

241

231 

251 

239 

176 

208

270 

355 

2,050 

1,920 

1,770

2,290 

2,590 

2,970 

2,260 

1,490

1,160 

1,020 

884 

740 

730 

622

Feb.

554 

566 

543 

536 

862

2,080 

1,600 

1,210 

1,030 

998

962 

902 

884 

890 

1,040

1,400 

1,900 

1,750 

1,690 

1,640

1,500 

1,460 

1,490 

1,660 

2,300

2,700 

2,880 

2,910

Month

Octc 

Neve 

Dece

Ca

Janu 

Febt 

Hare 

Apri 

toy.

June 

July 

Augu 

Sept

ffa

ifflber. ..................................

lendar year 1949 ......................

ary

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

ter year' 1949-50 ......................

Mar.

2,880 

2,860 

2,800 

3,090 

3,350

3,210 

2,620 

2,270 

2,070 

1,860

1,680 

1,510 

1,390 

1,300 

1,260

1,360 

2,740 

2,760 

3,090 

2,980

2,620 

3,660 

3,280 

2,860 

2,530

2,210 

2,030 

1,880 

1,800 

1,880 

2,310

Apr.

2,960 

3,600 

3,600 

3,170 

3,170

3,500 

3,240 

3,000 

2,600 

2,370

2,290 

2,470 

2,890 

2,530 

2,370

2,570 

3,050 

3,530 

3,920 

5,030

5,730 

5,410 

4,480 

3,840 

3,760

3,900 

4,350 

3,930 

3,390 

3,220

Seoondfcct-days

4,822 

7,812 

7,664

534,311

26,324 

39,937 

74,140 

103,870 

104,010 

41,032 

11,738 

4,660 

4,368

430,377

Peak discharge (base, 5.400 sec.-ft.) . Aor. 21 (3:30

May

3,220 

2,840 

2,460 

2,160 

1,960

1,920 

1,780 

1,750 

1,830 

2,040

2,690 

3,660 

4,380 

5,000 

5,140

4,790 

4,870 

3,840 

3,310 

3,380

3,800 

4,410 

4,570 

' 4,320 

4,090

3,840 

3,680 

3,100 

2,930 

3,100 

3,150

Maximum

206 

750 

331

14,500

2,970 

2,910 

3,660 

5,730 

5,140 

2,870 

705 

195 

259

5,730

June

2,870 

2,570 

2,210 

1,980 

1,900

1,770 

1,520 

1,330 

1,230 

1,510

1,540 

1,550 

1,380 

1,350 

1,340

1,470 

1,340 

1,220 

1,190 

1,200

1,160 

1,040 

952 

874 

814

772 

742 

742 

736 

730

Minimum

131 

146 

212

120

176 

536 

1,260 

2,290 

1,750 

730 

202 

113 

100

100

July

705 

670 

630 

640 

595

548 

519 

487 

463 

442

428 

412 

388 

363 

346

328 

315 

307 

295 

287

269 

259 

253 

243 

236

232 

232 

220 

215 

209 

202

Aug.

191 

188 

184 

181 

195

193 

186 

179 

174 

169

164 

164 

160 

157 

154

150 

144 

138 

133 

127

124 

122 

120 

118 

129

130 

120 

117 

120 

116 

113

Mean

156 

260 

247

1,464

849 

1,426 

2,392 

3,462 

3,355 

1,368 

379 

150 

146

1,179

a.m.) 6,360 sec. -ft.: May ~l c

Sept.

110 

109 

107 

105 

105

105 

100 

102 

110 

124

138 

133 

130 

137 

160

160 

186 

259 

232 

202

182 

171 

163 

155 

151

151 

151 

148 

144 

138

Runoff in

ao re-feet

9,560 

15,490 

15,200

1,060,000

52,210 

79,210 

147,100 

206,000 

206,300 

81,390 

23,280 

9,240 

8,660

853,600

- N

5,98O sec.-ft. 

207481 0-52-30
442 KLAMATH RIVER BASIN

Trinity River near Douglas City, Calif.

Location. Water-stage recorder, lat. 40°40' , long. 122°59', in SWi sec. 34, T. 33 N.,

 H.'IU W., 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 1950.

Extremes. Maximum discharge during year, 7,080 second-feet Apr. 21 (gage height, 10.8*!

 feet), minimum not determined.

1944-50: Maximum discharge, 41,800 second-feet Jan. 7, 1948 (gage height, 30.00

feet), from rating curve extended above 9,100 second-feet by logarithmic plotting;

minimum, 93 second-feet Sept. 6, 1947. 

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

 Diversions above station for irrigation, power, and placer mining.

Revisions. Revised figures of discharge, in second-feet, for low-water period in Septem-

 ber 1949, superseding those published in Water-Supply Paper 1151, are given herewith:

Sept. 4 157

5 153

6 157

17 158

Sept. 18 

19

157

154

149

21 145

Sept. 22 145

23 145

24 142

25 146

Sept. 26 149 

27 155

Month

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

Secondfoot-days

4,790

647,886

Maximum

174

20 , 2OO

Minimum

142

142 '

Mean

160

1,775

Runoff in 

acre-feet

9,500

1,285,000

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

170 

168 

163 

162 

160

160 

168 

177 

180 

191

236 

218 

203 

192 

188

184 

178 

175 

177 

180

183 

186 

186 

186 

186

184 

183 

183 

181 

181 

181

Nov.

180 

180 

178 

177 

175

175 

177 

180 

261 

467

388 

325 

298 

284 

281

281 

281 

276 

267 

259

250 

246 

242 

246 

279

274 

263 

621 

653 

457

Dec.

370 

327 

303 

284 

288

284 

272 

281 

286 

274

263 

248 

236 

246 

252

256 

286 

305 

308 

296

267 

261 

265 

272 

265

?56 

50 

246 

250 

259 

254

Jan.

242 

236 

230 

3228 

3230

224 

224 

248 

254 

288

274 

270 

263 

244 

244

a300 

3400 

1,820 

2,330 

2,030

2,340 

3,310 

3,550 

3,010 

1,880

1,380 

1,180 

1,040 

870 

805 

3750

Feb.

3650 

3650 

a620 

786 

1,050

2,520 

2,180 

1,560 

1,300 

1,310

1,280 

1,170 

1,130 

1,120 

1,300

1,880 

2,650 

2,410 

2,230 

2,160

2,000 

1,880 

1,880 

2,160 

2,940

3,390 

3,530 

3,500

Konth '

Octo 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1942 

apy

h. ......................................

ter year 1949-50 .......................

Mar.

3,420 

3,350 

3,230 

3,540 

3,790

3,820 

3,070 

2,620 

2,370 

2,140

1,930 

1,720 

1,580 

1,470 

1,410

1,500 

3,410 

3,750 

4,870 

4,270

3,440 

4,410 

4,110 

3,710 

3,270

2,850 

2,570 

2,360 

2,220 

2,230 

2,630

Apr.

3,260 

4,020 

4,110 

3,640 

3,530

3,970 

3,710 

3,480 

3,010 

2,730

2,620 

2,710 

3,260 

2,910 

2,670

2,810 

3,280 

3,840 

4,260 

5,290

6,350 

6,100 

4,950 

,210 

,050

,130 

,580 

,290 

3,700 

3,460

Secondfoot-days

5,060 

8,621 

8,510

628,535

30,694 

51,236 

91,060 

114,930 

109,590 

42,483 

12,218 

4,991 

4,736

484,129

May

3,450 

3,110 

2,670 

2,320 

2,110

2,020 

1,900 

1,850 

1,910 

2,080

2,630 

3,690 

4,490 

5,210 

5,580

5,090 

5,290 

4,180 

3,510 

3,500

3,920 

4,550 

4,820 

4,580 

4,370

4,070 

3,920 

3,260 

3,040 

3,210 

3,260

Maximum

236 

653 

370

20,200

3,550 

3,530 

4,870 

6,350 

5,580 

2,960 

761 

196 

244

6,350

June

2,960 

2,650 

2,260 

2,020 

1,950

1,810 

1,550 

1,360 

1,280 

1,560

1,590 

1,590 

1,410 

1,390 

1,380

1,510 

1,380 

1,260 

1,220 

1,240

1,220 

1,090 

1,000 

938 

878

824 

797 

790 

790 

786

July

761 

725 

678 

678 

656

604 

558 

521 

494 

467

444 

425 

400 

370 

348

330 

315 

303 

293 

288

272 

259 

250 

242 

234

228 

226 

222 

214 

210 

203

Minimum

160 

175 

236

142

224 

620 

1,410 

2,620 

1,850 

786 

2O3 

129 

115

115

Aug.

196 

191 

189 

186 

188

196 

192 

188 

181 

178

174 

171 

170 

165 

184

163 

a!56 

a!53 

a!48 

a!40

3138 

3137 

3135 

3134 

a!40

a!44 

3140 

3136 

a!35 

a!32 

a!29

Mean

163 

287 

275

1,722

990 

1,830 

2,937 

3,831 

3,535 

1,416 

394 

161 

158

1,326

Sept.

a!27 

a!25 

a!22 

a!21 

a!21

al!7 

al!5 

all? 

3123 

a!40

a!49 

a!47 

a!42 

a!55 

a!60

a!77 

196 

242 

244 

218

196 

183 

174 

168 

164

162 

162 

160 

a!57 

a!52

Runoff in 

acre -feet

10,040 

17,100 

16,880

1,247,000

60,880 

101 , 600 

180,600 

2E8,000 

217,400 

84,260 

24,230 

9,900 

9,390

960,300

Peak discharge (base, 6.4OO sec. -f t. ) .--April 21 (6 to 7:30 a.m.) 7,080 sec. -ft.; May 15 (7:30

a.m.) 6,480 sec.-ft.

a No g3ge-height record; discharge computed on basis of records for station at Lewiston.
KLAMATH RIVER BASIN 443

Trinity River near Hoopa, Calif.

Location.--Water-stage recorder, lat. 41°02', long. 123°39', in SE£ sec. 31, T. 8 N., R. 

b E., on Hoopa Indian Reservation, 0.5 mile downstream from Campbell Creek and 2 miles 

southeast of Hoopa. Altitude of gage , about 315 feet (from river-profile map).

Drainage area. 2,840 square miles.

Records available. October 1931 to September 1950. October 1911 to January 1914 and 

Novemoer iyib to August 1918 at site at Hoopa, 2 miles downstream.

Average discharge. 21 years (1911-13, 1931-50), 5,125 second-feet.

Extremes. Maximum discharge during year, 34,000 second-feet Mar. 19 (gage height, 16.70 

TeefT; minimum, 338 second-feet Sept. 6, 7, 8 (gage height, 2.87 feet).

1911-14, 1916-18, 1931-50: 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. Small diversions above station for mining and irrigation.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

2.8 320 6.0 2,000 11.0 12,300 

3.2 425 6.8 2,870 13.5 20,400 

3.8 625 7.6 4,060 16.0 30,800 

4.6 980 8.4 5,620 

5.2 1,330 9.2 7,500

Discharge, in second- feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

404 

410 

404 

395 

404

416 

452 

458 

470 

705

697 

594 

572 

538 

516

492 

482 

464 

455 

455

464 

470 

476 

479 

476

470 

467 

464 

464 

461 

458

Nov.

455 

455 

452 

449 

446

443 

440 

452 

642 

1,270

1,480 

1,150 

955 

844 

794

781 

781 

750 

729 

701

673 

661 

645 

649 

685

701 

794 

1,810 

1,990 

1,420

Dec.

1,120 

965 

862 

808 

945

950 

930 

910 

876 

871

822 

781 

745 

709 

713

745 

900 

1,120 

1,250 

1,080

950 

862 

844 

940 

950

895 

866 

835 

835 

905 

900

Jan.

876 

840 

794 

729 

733

729 

754 

830 

866 

1,090

1,320 

1,120 

1,180 

1,500 

1,120

1,140 

3,220 

15,900 

12,800 

9,980

11,800 

16,500 

21,100 

18,100 

11,000

7,880 

6,450 

5,530 

4,760 

4,290 

3,900

Feb.

3,440 

3,080 

3,140 

3,850 

6,220

12,200 

11,800 

8,820 

7,500 

7,250

7,550 

7,000 

6,520 

6,280 

6,980

9,380 

12,600 

11,300 

9,980 

9,380

8,620 

7,950 

7,700 

9,150 

11,500

12,600 

12,700 

12,200

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

mber

 tor............... ....................

lendar year 1949 

ary

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

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

ter year 1949-50 ...................'...

Mar.

11,500 

10,900 

10,600 

11,200 

12,400

13,000 

10,900 

9,550 

8,800 

8,180

7,580 

6,880 

6,330 

5,990 

5,620

6,450 

19,400 

21,700 

30,700 

27,500

20,300 

21,200 

19,200 

17,600 

15,300

13,700 

12,600 

11,300 

10,400 

10,100 

10,600

Apr.

11,700 

12,800 

12,800 

11,700 

11,100

11,800 

11,600 

11,000 

10,000 

9,200

8,750 

9,000 

10,600 

9,980 

9,120

8,850 

9,250 

9,980 

10,600 

11,900

13,200 

13,000 

11,600 

10,100 

9,520

9,380 

9,620 

9,580 

8,750 

8,080

Secondfoot-clays.

14,932 

24,497 

27,884

1,522,588

168,831 

236,690 

407,480 

314,560 

237,740 

104,940 

35,859 

15,147 

12,731

1,601,291

Peak discharge (base,?2,000 sec. -ft. ) .--Jan. 23 (6 p.

May

8,280 

8,250 

7,500 

6,640 

6,170

5,880 

5,730 

5,490 

5,470 

5,690

6,330 

7,780 

9,020 

9,780 

10,300

9,920 

9,820 

8,850 

7,720 

7,400

7,780 

8,550 

9,080 

8,900 

8,500

8,250 

7,850 

7,200 

6,450 

6,520 

6,640

Maximum

705 

1,990 

1,250

46,800

21,100 

12,700 

30,700 

13,200 

10,300 

6,470 

2,050 

633 

600

30,700

June

6,470 

5,930 

5,320 

4,800 

4,490

4,290 

4,030 

3,600 

3,340 

3,470

4,240 

4,080 

3,770 

3,440 

3,420

3,560 

3,540 

3,280 

3,110 

3,050

3,080 

2,900 

2,660 

2,460 

2,260

2,120 

2,060 

2,040 

2,060 

2,070

Minimum

39 

44( 

70

35(

72< 

3.08C 

5,62C 

8,08C 

5,47C 

2,04C 

651 

37E 

33E

33£

July

2,050 

1,990 

1,900 

1,820 

1,780

1,680 

1,560 

1,470 

1,390 

1,330

1,260 

1,220 

1,170 

1,120 

1,080

1,030 

990 

955 

920 

900

866 

835 

808 

786 

763

741 

713 

697 

697 

681 

657

Aug.

633 

608 

600 

590 

583

580 

583 

576 

562 

552»

538 

527 

513 

502 

496

488 

479 

464 

452 

437

425 

410 

404 

404 

404

401 

395 

398 

388 

380 

375

Mean

5 482 

) 817 

3 899

j 4,171

3 5,446 

) 8,453 

) 13,140 

10,490 

7,669 

3,498 

1,157 

489 

424

4,387

o. ) 24,500 sec. -ft.; Mar. 19 (6 p.

Sept.

368 

360 

355 

345 

340

340 

338 

345 

368 

375

378 

388 

404 

404 

401

395 

449 

527 

580 

600

562 

520 

485 

464 

449

449 

449 

440 

431 

422

Runoff in 

aore-fe«t

29,620 

48,590 

55,310

3,020,000

334,900 

469,500 

808,200 

623,900 

471,600 

208,100 

71,130 

30,040 

25,250

3,176,000

^ -
444 SMITH RIVER BASIN

Smith River near Crescent City, Calif.

Location.--Water-stage recorder, lat. 41°47', long. 124°04', in SW£ see. 10, T. 16 N., R. 

i K., 0.5 mile downstream from South Pork and 9 miles east of Crescent City.

Drainage area. 613 square miles.

Records available. October 1931 to September i960.

Average discharge.--18 years (1931-37, 1938-50), 3,376 second-feet.

Extremes. Maximum discharge during year, 91,400 second-feet Jan. 18 (gage height., 30.-9 

reet), from rating curve extended above 25,000 second-feet on basis of slope-area determination of peak flow; minimum, 214 second-feet Sept. 23, 24 (gage height, 3.55 

feet).

1931-50: Maximum discharge, 123,000 second-feet Dec. 28, 1945 (gage height, 35.6 

feet), from rating curve extended above 25,000 second-feet b 

station and eableway ratings; minimum, 168 second-feet Oct.

logarithmic plotting of 

1, 1931.

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

wo storage or diversion.

3.6 

4.0 

4.4 

4.8 

5.6 

6.5

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Jan. 18 Jan. 19 to Sept. 30

223 

315 

438 

590 

970 

1,54O

7.6

8.8

10.0

12.0

14.0

16.0

2,390

3,600

5,110

8,OOO

11,600

16,300

18.0

20.0

23.0

26.0

28.4

22,800

30,500

45,000

61,500

75,900

3.5 

4.0 

4.5 

5.0 

5.5 

6.1

202

330

485

670

890

1,230

6.8

7.6

8.6

10.0

12.0

14.0

1,720

2,400

3,470

5,300

8,500

12,800

16.0

18.0

20.0

22.0

17,800

23,700

31,000

40,000

Discharge, In second-feet, water year October-1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

241 

227 

223 

238 

321

a450 

a600 

a550 

a550 

a2,200

al.500 

a800 

a400 

283 

276

272 

269 

263 

258 

258

a270 

a260 

a260 

a250 

a250

a250 

a250 

a250 

a260 

a250 

a250

Nov.

a250 

a25O 

a250 

a250 

a240

a240 

a240 

a250 

aSOO 

a3, 500

alO,000 

as, ooo 

a3 , ooo 

a2 , ooo 

al,6oo

al,550 

al,500 

al,450 

al,400 

al,350

al,30o 

al,250 

al,200 

al,200 

al,300

a2,ooo 

a9,ooo 

al5,ooo 

al7,ooo 

alo.500

Dec.

a6,OOO 

a3,000 

a2,300 

al,800 

a2,400

a2,loo 

a2 , ooo 

al , 850 

al,70o 

al,600

al,5oo 

al,40o 

al,2oo 

al,loo 

al.ioo

1,410 

3,570 

8,820 

5,550 

3,440

2,570 

2,180 

2,140 

3,050 

2,610

2,350 

2,150 

1,960 

2,380 

3,100 

2,660

Jan.

2,650 

2,440 

2,100 

1,930 

1,750

1,640 

2,030 

2,490 

3,000 

7,340

5,160 

3,610 

4,680 

6,420 

3,880

3,220 

14,600 

75,900 

30,200 

21,400

38,700 

35,200 

38,200 

20,100 

12,400

9,000 

12,300 

13,200 

8,790 

7,020 

5,600

Feb.

4,810 

4,210 

4,050 

8,590 

17,200

18,400 

11,700 

9,270 

8,950 

9,040

10,300 

7,960 

6,880 

7,690 

7,600

15,000 

10,300 

7,520 

6,350 

5,520

4,880 

4,400 

4,730 

9,860 

11,000

8,230 

6,710 

5,600

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu

sept 

Wa

lendar year 1949 

ary

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

ter year 1949-50 .......................

Mar.

4,950 

4,740 

7,330 

6,710 

11,400

10.4OO 

7,390 

6,120 

5,600 

5,960

5,640 

4,880 

4,420 

4,180 

5,220

8,230 

39,900 

22,60O 

31,300 

16,6OO

13,700 

18,800 

13,600 

13,200 

10,300

9,510 

10,500 

8,390 

6,930 

6,120 

5,750

Apr.

5,640 

5,340 

4,700 

4,240 

4,630

5,160 

4,940 

4,840 

4,400 

3,980

3,660 

5,360 

7,220 

6,240 

5,100

4,560 

4,280 

4,210 

4,300 

4,500

4,110 

3,790 

3,350 

3,020 

2,860

2,750 

2,700 

2,600 

2,450 

2,360

Secondfoot-days

12,979 

94,570 

80,990

933,777

396,950 

236,750 

330,370 

127,290 

83,570 

31,708 

13,549 

8,713 

7,053

1,424,492

May

3,130 

3,980 

3,770 

3,240 

3,110

3,130 

2,830 

2,730 

2,700 

2,750

3,080 

3,420 

3,520 

3,460 

3,160

2,860 

2,700 

2,390 

2,170 

2,160

2,400 

2,500 

2,420 

2,280 

2,180

2,180 

2,060 1,860' 

1,720 

1,840 

1,840

Maximum

2,200 

17,000 

8,820

30,200

75,900 

18,400 

39,900 

7,220 

3,980 

1,760 

592 

320 

322

75,900

June

1,760 

1,640 

1,500 

1,390 

1,290

1,220 

1,190 

1,110 

1,080 

1,430

1,430 

1,460 

1,240 

1,120 

1,060

1,020 

975 

940 

895 

865

815 

778 

754 

754 

722

694 

670 

650 

634 

622

July

592 

570 

555 

544 

530

519 

502 

495 

488 

492

478 

462 

449 

439 

426

414 

411 

404 

398 

398

389 

383 

377 

371 

362

353 

350 

359 

359 

a350 

a330

Minimum

223 

240 

1,100

223

1,640 

4,050 

4,180 

2,360 

1,720 

622 

330 

235 

214

214

Aug.

a320 

a320 

a320 

a320 

a320

a320 

a31o 

asoo 

a300 

a300

a310 

a300 

a290 

a290 

286

283 

272 

265 

259 

259

254 

252 

265 

270 

265

259 

249 

244 

239 

237 

235

Mean

419 

 3,152 

2,613

2,558

12,800 

8,455 

10,660 

4,243 

2,696 

1,057 

437 

281 

235

3,903

Sept.

230 

227 

225 

225 

223

220 

220 

223 

230 

227

225 

227 

230 

237 

242

237 

262 

257 

244 

235

223 

220 

214 

216 

262

322

a275 

a225 

a225 

a225

Runoff in 

acre-feet

25,740 

187,600 

160,600

J, 852, 000

787,300 

469,600 

655,300 

252,500 

165,800 

62,890 

26,870 

17,280 

13,990

2,825,000

charge (base, 56. 

.-ftT; Mar. 17 (7

.000 see. -ft.). Jan. 18 (9:30 a.m.) 91,400 sec. -ft.; Jan. 23 4 a.mT)

45,500 sec.-ftT; Mar. 17 (7 a.m.) 56,400 sec. -ft.

a Ho gage-height record; discharge computed on basis of records for Salmon River at Somesbar, 

Trinity River near Hoopa, and Eel River at Scotia.
MISCELLANEOUS DISCHARGE MEASUREMENTS 445

Measurements of stream flow in the Pacific slope basins in California and Oregon made at 

points other than gaging stations are given in the following table:

Miscellaneous discnarge^measurements in the Pacific slope basins during 

water year October 1949 to September 1950

TIA JUANA RIVER BASIN, CALIF. 

Tia Juana River at Boundary at San Ysidora

Date

Oct. 10 

Nov. 3 

14 

Dec. 5 

21

Discharge 

(sec. -ft.)

2. '73 

3.65 

7.6 

4.03 

8.3

Date

Jan. 13 

Feb. 9 

23 

Mar. 8 

23

Discharge 

(sec. -ft.)

14.7 

9.4 

5.8 

5.0 

2.42

Date

Apr. 6 

19 

May 3 

22 

June 7

Discharge 

(sec. -ft.)

2.89 

1.81 

2.14 

1.91 

1.66

Date

June 22 

July 12 

28 

Aug. 15 

Sept. 13

Discharge 

(sec. -ft.)

1.08 

.91 

.94 

.95 

1.25

SAN DIEQUITO RIVER BASIN, CALIF.

San Diegulto River at Lake Hodges Reservoir 2 miles below Bernardo Bridge 

Oct. 18, 4.49 second-feet

San Dieguito conduit at Station 202 

Oct. 18, 18.2 second-feet

SAN LUIS REY RIVER BASIN, CALIF. 

San Luis Rey River above Pala div*rsion dam, near Pala

Oct.

Nov.

Dec.

Oct.

Nov.

19

18

22

29

2

1.18

1.86

1.76

1.76

1.97

11

29

0.32

.43

I

Dec.

Mar.

Apr.

II Feb.

| Apr.

30

15

27

3

20

2.

2.

3.

3.

2.

LAS FLORES

Las Flores

14

18

0.

48

41

60

51

81

May 5

18

June 9

12

July 10

2.48

2.25

1.30

1.37

1.34

July

Aug.

Sept

CREEK BASIN, CALIF.

Creek near Oceanside

39 I! June 20

37 U Aug. 17

0.02 I! Sept

.29 1

21

25

9

12

0.70

1.31

1.03

1.19

2e 0.31

SAN JUAN CREEK BASIN, CALIF. 

San Juan Mutual Water Co,'s diversion near San Juan Capistrano

Nov. 29

Dec. 28

Feb. 8

14

20

Mar. 6

*1.03

1.45

t.03

*0

1.77

.09

Mar. 20

Apr. 5

14

18

May 4

17

1.51

1.30

1.42

n.oe

.99

1.33

May 31

June 14

20

30

July 18

31

1.11

.83

».53

.54

.41

.35

Aug. 16

17

28

Sept. 11

26

26

0.27

*.25

.40

.35

*.31

.35

* Measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch, 

t Estimated.

SANTA ANA RIVER, BASIN, CALIF. 

Santa Ana River at Yorba Bridge, near Yorb

Nov. 10

11

14

16

21

23

25

28

30

Dec. 2

5

7

9

12

14

16

19

21

23

194

72

8.4

2.55

1.79

6.1

5.9

4.68

4.49

t.10

4.53

2.64

13

13

11

11

97

85

67

Dec. 27

30

Jan. 3

6

9

11

13

16

18

20

23

25

27

30

Feb. 1

3

6

7

89

84

64

44

152

86

115

55

46

77

87

93

79

64

37

37

292

351

Feb. 8

10

14

17

20

24

27

Mar. 1

3

6

8

10

13

16

17

20

22

24

274

74

83

69

64

64

56

51

54

50

45

44

40

6.2

3.34

.97

7.3-.72

Mar. 27

29

31

Apr. 3

5

7

10

121'4

17

19

 24

26

28

May 1

3

5

8

23

7.3

2.72

3.41

1.69

1.65

75

33 .

3.67

33

16

22

10

20

7.1

7.2

5.3

4.93

t Estimated.

Note.-Measurements furnished by Orange County Flood Control District.

Santa Ana River at Jefferson Street Bridge, near Atwood

Nov. 11

Dec. 19

23

30

Feb. 3

27 Jan. 6

46 9

11 11

6.6 13

2.89 Feb. 7

4.2 Jan. 18

81 20

24 27

51 30

243 Feb. 10 j

16

27

21

17

21

Feb. 24

Mar. 3

10

Apr. 12

Feb. 17

7.7

4.8

0

0

15

Note. Measurements furnished by Orange County Flood Control District.

Santa Ana River at bridge on Anaheim-Olive road, near Olive

Nov. 11

Dec. 19

23

30

2.38

0

0

0

Jan. 6

9

11

13

0 Jan. 18

42 20

10 27

18 II 30

2.49

1.99

1.65

5.1

Feb. 3

7

10

17

0

129

13

0

Note. Measurements furnished by Orange County Flood Control District.
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in the Pacific slope basins during 

water year October 1949 to September 1950 Continued

SANTA ANA RIVER BASIN, CALIF. Continued 

Santa Ana River at Chapman Bridge near>Orange

Date

Dec. 19 

Jan. 9

Discharge II 

(sec. -ft.) I Date

0 | Jan. 27 

0 II 30

Discharge 

(sec. -ft.)

0 

0

Date

Feb. 7 

10

Discharge II 

(sec. -ft.) 1 Date

51 Feb. 17 

0 ||

Discharge 

(sec. -ft.)

 - 0

-Measurements furnished by Orange County Flood Control District.

Rising Water about 500 feet east of Warm Creek at Colton Avenue>near Colton

Jan. 13

20

t-C

0 Feb. 2

1.40 6

1.69 ^ 17

2.26

11.8

4.10

Feb. 24

Mar. 3

10

1.79

3.79

1.79

Mar. 17

29

0.27

 o

Diversion from effluent of Riverside Sewage Treatment Plant bypassing gage 

on Santa Ana River at Riverside Harrows

Ocf. 4

10

18

25

31

Hov. 7

21

Dec. 1

6

13

20

27

6.1

9.0

5.3

4.95

5.2

4.50

4.12

2.76

5.1

6.5

2.96

4.75

Jan. 9

16

25

30

Feb. 7

21

28

Mar. 8

16

20

27

Apr. 4

6.0

4.26

5.8

4.90

5.1

4.17

.99

1.92

1.80

1.75

3.98

3.85

Apr. 10

25

May 3

8

15

23

29

June 5

13

20

27

July 5

7.1

6.5

8.6

9.3

7.6

3.22

2.96

3.10

8.3

1.87

3.31

3.35

July 12

19

25

Aug. 2

8

15

22

29

Sept. 5

13

18

25

8.3

3.27

3.40

7.3

3.76

9.0

3.54

8.3

3.72

8.2

3.28

7.8

VENTORA RIVER BASIN, CALIF. 

Matilija Creek, 1.5 miles above gaging station above Reservoir, near Matilija

Oct. 3 

20 

Hov. 3 

21

0.67 

.60 

.53 

.72

Dec. 5 

22 

Jan. 5 

27

0.79 

3.29 

3.54 

8.0

Feb. 23 

Mar. 7 

22 

Apr. 4

9.9 

7.3 

6.4 

4.91

Apr. 18 

May 16 

Sept. 29

4.97 

3.53 

.67

SANTA YNEZ RIVER BASIN, CALIF:

Santa Ynez River at Buellton

Oct. 19 

Hov. 2 

15 

30 

Dec. 13

0 

0 

0 

.32 

1.18

Jan. 12 

Feb. 1 

8 

15

9.9 

3.55 

31

9.7

Mar. 7 

16 

31 

May 1

5.4 

2.14

1.55 

.03

May 19 

June 8 

July 11 

27

1.09 

0 

0 

0

Santa Ynez River at Santa Rosa dam site

Jan. 12 

Feb. 1 

16

0.50 || Mar. 9 

4.77 16 

14 || 31

5.3 

2.58 

2.08

May 1 

19 

June 8

0.21 

0 

.06

July 12 

Aug. 1

0 

0

Cachuma Creek near Gonzales Ranch near Santa Ynez 

Dec. 1, 0 second-foot

Cachuma Creek, 7 miles above mouth near Santa Ynez 

Mar. 23, 0.64 second-foot

Cachuma Creek, 5 .miles above mouth near Santa Ynez 

Mar. 25, 0.42 second-foot

Santa Cota Creek at mouth, near Santa Ynez

Oct. 20 

Hov. 8 

Dec. 16 

Jan. 6

0.49 

3.30 

3.63 

3.30

Feb. 3 

16 

Mar. 7

16

3.43 

3.45 

1.45 

1.16

Mar. 31 

May 1 

19 

June 8

3.21 

.96 

.36 

.36

July 11 

25

3.19 

.42

Alamo Pintado Creek at Santa Ynez River, near Solvang

Oct. 20 

Hov. 8 

Dec. 16 

Jan. 6

0.27 

.35 

.34 

.34

Feb. 3 

16 

Mar. 7 

16

0.34 || Mar. 31 

.30 May 1 

.31 | 19 

.26 June 8

0.28 

.13 

.20 

.13

July 11 

25

0.20 

.17

Alisal Creek at mouth, near Solvang

Oct. 7

14

20

28

Hov. 3

0

0

0

.01

.01

Hov. 5

Dec. 1

14

Jan. 6

Feb. 2

0.02

.01

.07

.03

.10

Feb. 7

15

Mar. 7

14

28

11

2.18

.73

.51

.41

May 1

19

June 8

July 11

24

0.21

.18

.12

.04

.03

La Zaca Creek 5.0 miles above mouth, near Buellton

Oct. 7

14

20

28

Hov. 3

15

0.03

.04

.05

.04

.04

- .08

' Hov. 30

Dec. 12

28

Jan. 9

Feb. 1

14

0.08

.10

.08

.08

.09

.10

Mar. 7

10

31

Apr. 16

May 1

19

0.08

.08

.09

.09

.08

.08

June 8

July 11

27

0.07

.07
MISCELLANEOUS DISCHARGE MEASUREMENTS 447

Miscellaneous discharge measurements in the Pacific slope basins during 

water year October 1949 to September 1950 Continued

SANTA YNEZ RIVER BASIN, CALIF. Continued 

Nojoqul Creek at Santa Ynez River, near Buellton

Date

Oct. 7

14

20

28

Nov. 3

15

Discharge 

(sec. -ft.)

0

0

0

0

0

0

Date

Nov. 30

Dec. 13

28

Jan. 9

12

Feb. 1

Discharge 

(sec. -ft.)

0

0

0

0

0

0

Date

Feb. 8

14

Mar. 7

16

31

May 1

Discharge 

(sec. -ft.)

0.71

0

0

0

0

Date

May 9

June 8

11

July 27

Discharge 

(sec. -ft. )

0

0

0

0

Salsipuedes Creek at Santa Ynez River, near Lompoo

Oct. 19 

Nov. 9 

Dec. 1 

14

0.08 

.13 

.26 

.62

Jan. 10 

25 

Feb. 1 

16

1.90 

1.59 

1.22 

3.62

Mar. 9 

16 

31 

May 1

1.52 

1.64 

1.53 

.71

May 23 

June 8 

July 12 

Aug. 1

0.52 

.20 

.32 

0

SANTA MARIA RIVER BASIN, CALIF. 

Cuyama River below Cottonwood Creek, near Cuyama

Oct. 18 

Nov. 16

1.80 

4.27 I

May 9 

June 5

4.38 

.73 [

July 5 

Aug. 2

0.32 || 

II

Cuyama River below Gypsum Creek, near Santa Maria

Oct. 18 

Nov. 16

0 

° I

May 9 

June 5

2.19 

0

La Brea Creek 1.1 miles above j

Oct. 3 

31 

Dec. 12

0.13 

.17 

.18 I

jan. 11 

Feb. 14 

Mar. 10

0.70

.49 

1.02

July 5 

Aug. 2

0 

0

paging station, near Slsquoc

June 2 

July 3 

Aug. 4

L... 

0.55 

.41 

.29

Sept. 5 0.25

SUR RIVER BASIN, CALIF.

Sur River at Big Sur State Park 

May 24, 33.5 second-feet

PAJARO RIVER BASIN, CALIF.

Dos Picachos Creek near Hollister 

Jan. 6, 1.54 second-feet

SAN JOAQUIN RIVER BASIN, CALIF.

Utica Canal at former gaging station near Avery 

July 14, 72 second-feet

AMERICAN RIVER BASIN, CALIF.

Seepage from Silver Lake at former gaging station near Kirkwood 

June 22, 17.9 second-feet; Aug. 30, 7.9 second-feet

Eldorado Canal at Camp. 5, Calif. 

Aug. 28, 134 second-feet

GOOSE LAKE BASIN, ORES.

Camp Creek, SWfc sec. 2, T. 38 S., R. 19 E., at former gaging station 

9 miles northwest of Lakeview 

Oct. 11, 1.6 second-feet

KLAMATH RIVER BASIN, OREG.

Williamson River, former gaging station above Spring Creek, near

Klamath Agency 

Sept. 14, 20.4 second-feet

Big Spring Creek, below tributary on Lenz Ranch,

sec. 22, T. 30 S., R. 8 E.

Sept. 15, 0 second-foot

Scott and Sand Creek Canals, Just below Junction of feeder canals,

near Fort Klaraath 

Sept. 17, 12.7 second-feet

Shakespeare Creek, sec. 14, T. 34 S., R. 7 E.,

near Chiloquin 

Sept. 14, 8.89 second-feet

Spring Creek, NE£ sec. 9, T. 34 S., R. 7 E., at mouth,

near Chiloquin 

Sept. 14, 279 second-feet

Fivemile Creek., at former gaging station near Beatty 

Sept. 15, 15.7 second-feet
448 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in the Pacific slope basins during 

water year October 1949 to September 1950--Continued

KLAMATH RIVER BASIN, OREG.--Continued

Sycan River, at former gaging station near Beatty 

Sept. 15, 0.7 second-foot

Wood River, sec. 3, T. 33 S., R. 7i E., above Sun Creek 

and below springs near Fort Klamath 

Sept. 17, 226 second-feet

Wood River, at former gaging station near Fort Klamath 

Sept. 16, 236 second-feet

Anna Creek, at former gaging station near Fort Klamath 

Sept. 17, 61.5 second-feet

Fort Creek, see. 26, T. 33 S. , R. ?£ E., at highway crossing below diversion,

near Fort Klamath 

Sept. 16, 82.0 second-feet

Crooked Creek, see. 13, T. 34 S., R. 7i E., below diversion,

at Klamath Agency 

Sept. 16, 82.0 second-feet

Sevenmile Creek, sec. 36, T. 33 S., R. 6 E., at bridge below diversion,

near Fort Klamath 

Sept. 16, 61.7 second-feet

Irrigation canal, sec. 36, T.. 33 S., R. 6 E., at bridge below diversion,

near Fort Klamath 

Sept. 16, 0 second-foot

Spencer Creek, sec. 29, T. 39 S., R. 7 E., at mouth, near Keno 

Sept. 13, 21.2 second-feet
INDEX

"A" Canal at Klamath Palls, Oreg....... 431

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

Acre-foot, definition of............... 1

Agencies other than Geological Survey,

records collected by............. 12-14

Alameda Creek near Nlles, Calif........ 183

Alamltos Creek near Edenvale, Calif.... 176

Alamo Creek near Santa Maria, Calif.... ISOAlamo Pintado Creek, Calif., discharge

measurements of.................. 446

Alder Creek near Whitehall, Calif...... 388

Allsal Creek, Calif., discharge

measurements of.................. 446

Allso Creek at El Toro, Calif.......... 38

American River at Fair Oaks, Calif..... 374

at Sacramento, Calif................. 375

Middle Fork, near Auburn, Calif...... 376

North Fork, at North Fork Dam, Calif. 372 

at Rattlesnake Bridge, Calif....... 373

South Fork, near Camino, Calif....... 382

near Kybur'z, Calif................. 381

American River Basin, Calif., gagingstatlon records in..............372-393

American River flume near Camino, Calif. 392 

Anna Creek, Oreg., discharge measurement of.......................... 448

Antelope Creek near Red Bluff, Calif... 324 

Arlington, Calif., Santa Ana River near 43 

Arrowhead Springs, Calif., Strawberry

Creek near....................... 58

Waterman Canyon Creek near........... 59

Arroyo Grande at Arroyo Grande, Calif.. 156 

Arroyo Seco (Los Angeles River Basin)

near Pasadena, Calif............. 106

Arroyo Seco (Salinas River Basin) near

Soledad, Calif................... 167

Artesla, Calif., Coyote Creek near..... 91

Ashland, Oreg., Keene Creek near....... 437

Atascadero Creek near Goleta, Calif.... 131

Auberry, Calif., Big Sandy Creek near.. 228 

Auburn, Calif., Bear River near........ 369

Middle Fork American River near...... 376

Avery, Calif., Middle Fork Stanislaus

River near....................... 264

North Fork Stanislaus River near..... 268

Azusa, Calif., Rogers Creek near....... 85

San Gabriel River near............... 82

Bagby, Calif., Merced River at......... 242

Bakersfleld, Calif., Kern River near... 188 

Baldwin Park, Calif., San Gabriel River

near............................. 82

Ballona Creek near Culver City, Calif.. 114 

Battle Creek near Cottonwood, Calif.... 322

Bautlsta Creek near Hemet, Calif....... 74

Bear Creek (tributary to San Joaquin

River) near Lockeford, Calif...'.. 278 

Bear Creek (tributary to South Fork San

Joaquin River) near Vermilion

Valley, Calif.................... '219

Bear River (Feather River Basin) near

Auburn, Calif.................... 369

near Colfax, Calif................... 368

near Wheatland, Calif................ 370

Bear River (Mokelumne River Basin) at

Pardoe Camp, Calif............... 287

Bear River Canal near Colfax, Calif.'... 371 

Beaumont, Calif., Little San Gorgonlo

Creek near....................... 55

Beaver Creek near Lilyglen, Oreg....... 436

Bldwell Bar, Calif., Middle Fork

Feather River at................. 348

Big Bar, Calif., North Fork Feather

River at......................... 335

Big Bend, Calif., Pit River at......... 313

Big Creek, Calif., Florence Lake near.. 215 

Huntlngton Lake near................. 221

San Joaquln River above.............. 206

Shaver Lake near..................... 224

Big Creek below Huntington Lake, Calif. 222 

Big Sandy Creek near Auberry, Calif.... 228

Big Spring Creek, Oreg., discharge

measurement of................... 447

Big Trees, Calif., San Lorenzo River at 174 

Bonsall, Calif., San Luls Rey River

near.............................. 30

Borel Canal at Tllley Creek, Calif..... 190

Bowman Lake, Calif., Canyon Creek below 363 

Bowman Lake near Granlteville, Calif... 362 

Bowman-Spauldlng Canal at Intake, Calif. 364 

Bradley, Calif., Salinas River near...'. 161 

Branscomb, Calif., South Fork Eel River

near............................. 419

Brea, Calif., Fullerton Creek near..... 94

Brea Creek at Fullerton, Calif......... 93

below Brea Dam, near Fullerton, Calif. 92 

Brldgeville, Calif., Van Duzen River at 421 

Brownsville, Calif., Dry Creek near.... 366

Buchanan dam site, Calif., Chowchilla

River at......................... 238

Bucks Creek Reservoir near Bucks Ranch,

Calif............................ 342

Buellton, Calif., La Zaca Creek at..... 144

Santa Ynez River near................ 136

Butt Creek above Almanor-Butt Creek

tunnel, near Prattvllle, Calif... 338 

below Almanor-Butt Creek tunnel,

near Prattvllle, Calif........... 339

Butte City, Calif., Sacramento River at 304 

Butte Creek near Chlco, Calif.......... 332

Cache Creek at Yolo, Calif..'........... 398

near Capay, Calif...............:.... 397

near Lower Lake, Calif............... 396

North Fork, near Lower Lake, Calif... 400 

Cachuma Creek, Calif., discharge

measurements of.................. 446

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

Calabasas, Calif., Malibu Creek near... 116 

Calaveras River at Jenny Llnd, Calif... 275 

Calaveras River Basin, Calif., gagingstatlon records in..............275-277

Calpella, Calif., East Fork Russian

River near........................ 411

Camino, Calif., American River flume

near............................. 392

Camp Creek near...................... 296

South Fork American River near........ 382

Camp Bonita, Calif., East Fork San

Gabriel River near............... 81

Camp. Creek (Goose Lake Basin), Calif.,

discharge measurement of......... 447

Camp Creek (Mokelumne River Basin) near

Camino, Calif.................... 296

Camp Rlncon, Calif., West Fork San

- Gabriel River at..........'....... 84

Campbell Creek at Saratoga, Calif...... 180

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

Canby, Calif., Pit River near.......... 309

Canyon Creek below Bowman Lake, Calif.. 363 

Capay, Calif., Cache Creek near........ 397

Carbon Creek near Yorba Linda, Calif... 95 

Carplnteria Creek near Carplnteria,

Calif......:..................... 130

Cascade Canal near Fish Lake, Oreg..... 430

Cherry Creek near Hetch Hetchy, Calif.. 255 

Chlco, Calif., Butte Creek near........ 332

Chico Creek near..................... 330

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

Chiloquln, Oreg., Sprague River near... 429 

Willlamson River near................ 422

Chittenden, Calif., Pajaro River near.. ' 168 

Chowchilla River at Buchanan dam site,

Calif............................ 238

Cisco, Calif., South Yuba River near... 360 

City Creek near Highland, Calif........ 60-61

Claremont, Calif., San Antonio Creek

near.............................. 75-76

Southern California .Edison Co.''s

conduit near..................... 77

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

Clear Lake at Lakeport, Calif.......... 395

Clements, Calif., Mokelumne River near. 283

449
450 INDEX

Cliff Camp, Calif., North Pork Kings

River near..............'........ 203

Clio, Calif., Middle Pork Feather Rivonear,........................... 346

Clipper Mills, Calif., Lost Creek near 350 

Cloverdale, Calif., Dry Creek near.... 412

Coalinga, Calif., Los Gatos Creek near 205 

Colby Ranch, Calif., Tujunga Creek neari 101 

Cold Creek near Mokelumne Peak, Calif. 286 

Colbax, Calif., Bear River near....... 368

Bear River Canal near............... 371

Colgate diversion dam, Calif., North

Yuba River at................... 359

Colton, Calif., Meeka & Daley Canal

near............................ 68

Warm Creek near..................... 56-57

Colusa, Calif., Sacramento River at... 305 

Colusa and Yolo Basins, Calif., 'gagingstation records in»............394-403

Computations, accuracy of results of.. 5-6 

Concow Creek near Yankee Hill, Calif.. 344 

Conn Creek near St. Helena, Calif..... 405

Contents, definition of............... 1

Control, definition of................ 1

Cooperation, record of................ 14

Copco, Calif., Pall Creek at.......... 435

Klamath River near.................. 426

Corona, Calif., Santa Ana River near.. 44,45 

Temescal Creek near................. 74

Cosgrove Creek near Valley Springs,

Calif......'..................... 276

Cosumnes River at McConnell, Calif.... 295

at Michigan Bar, Calif.............. 294

North Pork, at Cosumnes Mine, Calif. 292 

near El Dorado, Calif............. 293

Cottonwood, Calif., Battle Creek near. 322 

Cottonwood Creek near............... 321

Cottonwood Creek (Goose Lake Basin)

near Lakeview, Oreg............. 299

Cottonwood Creek (Sacramento River

Basin) near Cottonwood, Calif... 321 

Cottonwood Creek (San Joaquin River

Basin) near Friant, Calif....... 232

Cottonwood Creek (Tia Juana River

Basin) above Tecate Creek, near 

Dulzura, Calif.................. 16

Cow Creek near Mlllville, Calif....... 320

Coyote Creek (tributary to San Francisco Bay) near Edenvale, Calif.... 182

near Madrone, Calif................. 181

Coyote Creek Basin, Calif., gagingstation records in.............181-182

Coyote Creek (tributary to San Gabriel

River) near Artesia, Calif....... 91

Coyote Creek (tributary to Ventura

River) near Ventura, Calif....... 129

Craftonville, Calif., Mill Creek near..50,51 

Crane Valley Reservoir, Calif., Pacific 

Gas & Electric Co. conduit No. -3 

near.............................. 227

North Pork Willow Creek below........ 226

Crescent City, Calif., Smith River near 444 

Crescent Mills, Calif., Indian Creek

near.............................. 340

Crooked Creek, Oreg., discharge

measurement of................... 448

Cucamonga Creek near Upland, Calif..... 70

Culver City, Calif., Ballona Creek near 114 

Cupertino, Calif., Stevens Creek near.. 175 

Cuyama River, Calif., discharge measurements of......................... 447

near Santa Maria, Calif.............. 148

near Ventucopa, Calif................ 147

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

Data, 'accuracy of...................... 5-6

explanation of........................ 2-5

Daulton, Calif., Fresno River near..... 237

Davis, Calif., Putah Creek near........ 403

Day Creek near Etiwanda, Calif

Deer Creek tributary to Sacramento

River near Vina, Calif.......... 329

Deer Creek tributary to Yuba River)

near Smartville, Calif........... 365

Delta, Calif., Sacramento River at....3, 300

Devil Canyon Creek near San Bernardino,

Calif............................ 62

Don Pedro Reservoir near La Grange,

Calif............................ 251

Dos Palos, Calif., San Joaquin River

near............................. 211

Dos Picachos Creek, Calif., discharge

measurement of................... 447

Douglas City, Trinity River near....... 442

Downey, Calif., Los Angeles River near. 98 

Rio Hondo near....................... 108

Drainage area, definition of........... 2

Drew Creek near Lakeview, Oreg......... 298

Dry Creek (Feather River Basin) at

Virginia Ranch, Calif,........... 367

near Brownsville, Calif.............. 366

Dry Creek (Mokelumne River Basin) near

Gait. Calif...................... 291

Dry Creek (Russian River Basin) near

Cloverdale, Calif................ 412

Duarte, Calif., Pish Creek near........' 3, 86

Ducor, Calif., White River near........ 193

Dulzura, Calif., Cottonwood Creek near. 16 

Dulzura conduit near................. 19

Tia Juana River near................. 17

Dulzura conduit near Dulzura, Calif.... 19

Dunneville, Calif., Pacheco Creek near. 169

East Highlands, Calif., Plunge Creek

near............................. 53

Eaton Creek near Pasadena, Calif....... 112

Echo Lake conduit near Vade, Calif..... 383

Edenvale, Calif., Alaraitos Creek near.. 176

Coyote Creek near.................... 182

Eel River at Hullville, Calif.......... 415

at Scotia, Calif..................... 417

at Van Ardsdale.Dam, near Potter

Valley, Calif;................... 416

South Fork near Branscomb, Calif..... 419

near Miranda, Calif ................. 420

Eel River Basin, Calif., gaging-station

records in......................414-421

Elder Creek at Gerber, Calif........... 327

near Paskenta, Calif................. 326

Elder Creek Basin, Calif., gagingstation records in..............326-327

El Dorado, Calif., North Pork Cosumnes

River near....................... 293

El Dorado Canal, Calif., discharge

measurement of................... 447

near Kyburz, Calif................... 387

El Toro, Calif., Aliso Creek at......... '38

Eleanor Creek near Hetch Hetchy, Calif. 257 

Elsinore, Calif., Elsinore Lake at..... 73

San Jacinto River near............... 73

Elsinore Lake at Elsinore, Calif....... 73

Enterprise, Calif., Palermo Canal at... 351

South Pork Feather River at.......... 349

Etiwanda, Calif., Day Creek near....... 69

Exchequer, Calif., Lake McClure at..... 243

Merced River at...................... 244

Pair Oaks, Calif., American River at... 374 

Fall Brook, Calif., Santa- Margarita

River at......................... 33

Fall Creek at Copco, Calif............. 435

Fall River Mills, Calif., Pit River at. 310 

Palls' Creek near Hetch Hetchy, Calif... 254 

Feather River at Nicolaus, Calif........ 337

Middle Fork, at Bidwell Bar, Calif... . 348

below Sloat, Calif................. 347

near Clio, Calif....'....'........... 346

near Oroville, Calif................. 336

North Pork, at Big Bar, Calif........ 335

near Prattville, Calif............. 334

South Fork, at Enterprise, Calif..... 349

West Branch, .near Yankee Hill, Calif. 343 

Feather River Basin, Calif., gagingstation records in..............333-371

Fillmore, Calif., Fillmore Irrigation

Co.'s canal near................. 122

Sespe Creek near..................... 121

Fillmore Irrigation Co.'s canal near

Fillmore, Calif.................. 122

Pine Gold Cr.eek near Friant, Calif..... 229

Fish Creek near Duarte, Calif.......... 3, 86

Fish Lake, Oreg., Cascade Canal near... 430 

Flvemile Creek, Oreg., discharge

measurement of................... 447

Floods, special reports on............. 11

Florence Lake, Calif., South Fork San

Joaquin River near............... 216

Florence Lake near Big Creek, Calif.... 215
INDEX 451

Fontana, Calif., Lytle Creek near..... .v 63-64

Fontana pipe line. See Lytle Creek 

near Fontana.

Fort Creek, Oreg., discharge measurement of.......................... 448

Fort Jones, Calif., Scott River near... 43.9

Fourmile Lake Reservoir, Oreg., contents

of................................ 428

Fremont Ford Bridge, Calif., San

Joaquin River at................. 212

Fresno River near Daulton, Calif....... 237

near Knowles, Calif.................. 236

Fresno River Basin, Calif., gagingstation records in...............236-237

Friant, Calif., Cottonwood Creek near.. 232 

Fine Gold Creek near.................. 229

Friant-Kern Canal at................. 230

Little Dry Creek near................ 233

Madera Canal near.................... 231

Millerton Lake at.................... 208

San Joaquin River below.............. 209

Friant-Kern Canal at Friant, Calif..... 230

Fullerton, Calif., Brea Creek at....... . 93

Brea Creek near...................... 92

Fullerton Creek at................... 95

Fullerton Creek at Fullerton, Calif.... 95 

below Fullerton Dam, near Brea, Calif. 94

Gait, Calif., Dry Creek near........... 291

Garey, Calif., Sisquoc River near...... 153

Georgetown, Calif., Georgetown ditch

near............................378,380

Pilot Creek near..................... 379

Rubicon River near................... 377

Georgetown ditch above Pilot Creek,

near Georgetown, Calif........... 378

near Georgetown, Calif............... 380

Gerber, Calif., Elder Creek at......... 327

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

Little Dalton Creek near............. 89

Goleta, Calif., Atascadero Creek near.. 131 

San Jose Creek near.................. 132

Goodyears Bar, Calif., North Yuba River

below............................ 358

Goose Lake Basin, Oreg., gaging-station

records in......................298-299

Granitevllle, Calif., Bowman Lake near. 362 

Graton, Calif., Laguna de Santa Rosa

near............................. 413

Greenspot pipe line near Mentone,

Calif.......'.....................

Guadalupe, Calif., Los Capitancillos

Creek at......................... 178

Santa Maria River at...............'.. 149

Guadalupe River at San Jose, Calif..... 177

Guadalupe River Basin, Calif., gagingstation records in..............176-180

Guejito Creek at Pasqual, Calif........ 27

near San Pasqual, Calif.............. 26

Guenoc, Calif., Putah Creek near....... 401

Guerneville, Calif., Russian River at.. 410

Haines Creek near Tujunga, Calif....... 105

Hamilton City, Calif., Stony Creek near 331

Hansen Dam, Calif., Tujunga Creek below 103

Harris, Calif., San Antonio Creek at... 146

Hat Creek near Hat Creek, Calif........ 315

Hayward, Calif., San Lorenzo Creek at.. 184

Healdsburg, Calif., Russian River near. 409

Hemet, Calif., Bautista Creek near..... 74

Hetch Hetchy, -Calif., Cherry Creek near 255

Eleanor Creek near................... 257

. Falls Creek near..................... 254

Hetch Hetchy Reservoir at.............. 249

Lake Eleanor near..........'.......... 256

Tuolumne River near,................. 250

Hetch Hetchy Reservoir at Hetch Hetchy

- Calif............................ 249

Highland, Calif., City Creek near...... 60-61

Hollister, Calif., San Benito River

near............................. 172

Hoopa, Calif., Trinity River near...... 443

Hopland, Calif., Russian River near.... 408

Hopper Creek near Piru, Calif.......... 119

Huasna River near Santa Maria, Calif... 151

Hullville, Calif., Eel River at........ 415

Lake Pillsbury at.................... 414

Huntington Lake near Big Creekj Calif.. 221 

Huntington Lake, Calif., Big Creek

below............................ 222

Page 

225

Huntington-Shaver conduit at outlet, 

Calif...........................

Hyatt Prairie Reservoir, Oreg., contents of......................... 428

Ice House, Calif., South Fork Silver

Creek near....................... 391

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

Indian Creek near Crescent Mills,

Calif............................ 340

Irving, Calif., San Diego Creek near... 39 

Isabella, Calif., South Fork Kern River

at................................ 192

Isabella dam site, Calif., Kern River

below............................ 187

Jack Creek near Templeton, Calif....... 164

Jacksonville, Calif., Woods Creek near. 260

James bypass near San Joaquin, Calif... 234

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

Jenny Lind, Calif., Calaveras River at. 275

Kaweah River near Three Rivers, Calif.. 198 

North Fork, at Kaweah,.Calif......... 199

Keddie, Calif., Spanish Creek at....... 341

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

Lone Pine Creek near................. 67

Keene Creek at Hyatt Prairie, near

Ashland, Oreg.................... 437

Kelsey Creek near Kelseyville, Calif... 399 

Kelseyville, Calif., Kelsey Creek near. 399 

Kennedy Meadows-, Calif., Middle Fork

Stanislaus River at.............. 263

Keno, Oreg., Klamath River at.......... 425

Keno Canal at Klamath Falls, Oreg...... 432

Kerckhoff powerhouse, Calif., San

Joaquin River below.............. 207

Kern River below Isabella dam site,

Calif............................ 187

near Bakersfield, Calif.............. 188

near Kernville, Calif...............185-186

South Fork, at Isabella, Calif......'. 192

near Onyx, Calif................... 191

Kern River Basin, Calif., gagingstation records in..............185-192

Kern River No. 3 Canal near Kernville,

Calif............................ 189

Kernville, Calif., Kern River near....185-186

Kern River No. 3 Canal near.......... 189

Keswick, Calif., Sacramento River at... 302 

Kings County, Calif., Tulare Lake in... 193 

Kings River above North Fork, Calif.... 201

at Piedra, Calif..................... 202

North Fork, below Rancneria Creek,

Calif.............................. 204

near Cliff Camp, Calif............: 203

Kirkwood, Calif., Silver Lake Outlet

near............................. 385

Twin Lakes Outlet-near............... 386

Klamath Falls, Oreg., "A"'Canal at...,. 431 

Keno Canal at........................ 432

Link River at........................ 424

Upper Klamath Lake near.............. 423

Klamath River at Keno, Oreg............. 425.

at Somesbar, Calif................... 427

below Fall Creek, near Copco, Calif.. 426 

diversion from, to Lost River near

Olene, Oreg...................... 434

Klamath River Basin, Calif.-Oreg.,

gaging-station records in.......422-443

smaller reservoirs in................ 428

Knights Ferry, Calif., Oakdale Canal

near............................. 274

South San Joaquin Canal near-......... 273

Knights Landing, Calif., Sacramento

River at......................... 307

Knowles, Calif., Fresno River near..... 236

Kyburz, Calif., El Dorado Canal near... 387 

South Pork American River near....... 381

La Brea Creek, Calif., discharge

measurements of.................. 447

near Sisquoc, Calif..,...,...... ....-. 154

La Grange, Calif., Don Pedro Reservoir -

near............................. 251

Modesto Canal near................... 261

Tuolumne River near........'.......... 252

Turlock Canal near................... 262

La Zaca Creek at Buellton, Calif....... 144

discharge measurements of.........'... 446
452 INDEX

Jjaguna de Santa Rosa near Graton,

Calif...........................

Lake Almanor near Prattville, Calif... 

Lake Eleanor near Hetch Hetchy, Calif. 

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

Lake Pillsbury at Hullville, Calif....

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

Lakeview, Oreg., Cottonwood Creek near

413

333

256

243

414

395

299 Merced River Slough near Newman, Calif. 247

Drew Creek near....................... 298 Mesa Grande, Calif., Santa Ysabel

Lancha Plana, Calif., Mokelumne River

at............................... 282

Las Flores Creek, Calif., discharge

measurements of.................. 445

Lewiston, Calif., Trinity River at..... 441

Likely, Calif., South Fork Pit River

near............................. 314

Lilyglen, Oreg., Beaver Creek near..... 436

Link River at Klamath Falls, Oreg...... 424

Little Dalton Creek near Glendora,

 Calif............................ 89

Little Dry Creek near Friant, Calif.... 233

Little San Gorgonio Creek near Beaumont,

Calif............................ 55

Little Santa Anita Creek near Sierra

Madre, Calif..................... Ill

Little Tujunga Creek near San Fernando,

Calif............................ 104

Lockeford, Calif., Bear Creek near..... 278

Lompoc, Calif., Salsipuedes Creek near. 145 

Santa Ynez River near...........137,138,139

Lone pine Creek nearTCeenbrook, Calif.. 67 

Long Barn, Calif., South Fork Stanislaus River near.................. 270

Tuolumne Canal near.................. 272

Long Beach, Calif., Los Angeles River

at.................;............. 99

Los Alamitos, Calif., San Gabriel River

near............................. 84

Los Angeles River at Long Beach, Calif. 99 

at Los Angeles, Calif................ 97

at Sepulveda Dam, Calif.............. 96

near Downey, Calif................... 98

Los Angeles River Basin, Calif., gagingstation records in...............95-113

Los Banos, Calif., Salt Slough near.... 239

San Luis Creek near.................. 236

Los Capitancillos Creek at Guadalupe,

Calif............................ 178

Los Gatos Creek (Guadalupe River Basin)

below Los Gatos, Calif........... 179

Los Gatos Creek (Tulare Lake Basin)

above Nunez Canyon, near Coalinga,

Calif............................ 205

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

Lost Creek near Clipper Mills, Calif... 350 

LostRiver diversion canal near Olene,

Oreg............................. 433

Lower Lake, Calif., Cache Creek near... 396 

North Fork Cache Creek near..........3, 400

Lytle Creek, east channel of, at San

Bernardino, Calif................ 65

near Fontana, Calif.................. 63-64

McCloud River above Shasta Lake, Calif. 318 

near McCloud, Calif.................. 317

McConnell, Calif., Cosumnes River at... 295 

Madera Canal near Friant, Calif........ 231

Madrone, Calif., Coyote Creek near..... 181

Malibu Creek at Crater Camp, near

Calabasas, Calif................. 116

Marysville, Calif., Yuba River at...... 355

Matilija Creek above reservoir, near

Matilija, Calif...............'... 124

at Matilija, Calif................... 126

discharge measurements of............. 446

North Fork, at Matilija, Calif....... 128

Matilija Reservoir at Matilija, Calif.. 125 

Medley Lakes Outlet near Vade, Calif... 384 

Meeks & Daley Canal near Colton, Calif. 68 

Melones'powerhouse, Calif., Stanislaus

River below...................'... 266

Melones Reservoir at Melones Dam,

Calif............................ 265

Mendota, Calif., San Joaquin River near 210 

Mentohe, Calif., Qreenspot pipe line

near............................. 49

Mill Creek near...................... 52

Santa Ana River near................. 40-41

Merced River at Bagby, Calif, 

at Exchequer, Calif.

242

244

Merced River at Happy Isles Bridge, 

' near Yosemite, Calif..........

at Pohono Bridge, near Yosemite, 

Calif.........................

near Stevinson, Calif.

Page 

240

241

245

Merced River Basin, Calif., gagingstation records in..............240-247

Creek near.

Michigan Bar, Calif., Cosumnes River at 

Middle Tuolumne River at Oakland Recre23

294

ation Camp, Calif............t... 259

Middle Yuba River above Oregon Creek,

Calif 

at a, if Milton I'lJ-j. own t Calif \ja J-J..L * * * 

Mill Creek. (Sacramento River Basin)

353

352

near Los Molinos, Calif. 325 

Mill Creek (Santa Ana River Basin) near

Craftonville, Calif.............. 50-51

near Mentone, Calif.................. ~ - - - 208 52

320 

352 

356

420

113

253

261

286

282

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

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

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

Milton-Bowman tunnel at outlet, Calif.. 

Miranda, Calif., South Fork Eel River 

near.............................

Mission Creek near Montebello, Calif... 

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

Modesto Canal near La Grange, Calif....

Mokelumne Peak, Calif., Cold Creek near 

Mokelumne River at Lancha Plana, Calif.

at Woodbridge, Calif................. 284

Middle Fork, at West Point, Calif.... 288

near Clements, Calif................. 283

near Mokelumne Hill, Calif........... 281

North Fork, below Salt Springs Dam,

Calif............................ 280

South Fork, near West Point, Calif... 289 

Mokelumne River Basin, Calif., gagingstation records in..............279-297

Mono Creek near Vermilion Valley,

Calif

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

Montebello, Calif., Mission Creek near. 

Rio Hondo near.......................

Montgomery Creek, Calif., Pit River

near.............................

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

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

220

109

113

107

313

170

34

Naclmiento River near San Miguel, Calif. 165 

Napa River near St. Helena, Calif..'.... 404

Napa River Basin, Calif., gagingstation records in..............404-405

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

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

Newman, Calif., Merced'River Slough

247

248 

San Joaquln River near............... 213

354

18

near. 

Orestlmba Creek near.

Nicolaus, Calif., Feather River at..... 337

Niles, Calif., Alameda Creek near...... 183

Nojoqui Creek, Calif., discharge

measurements of.

North Drew Canal, Oreg., diversion by., 

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

North Fork Dam, Calif., North Fork

American River at.

447

298

201

372

357

359 

below Goodyears Bar, Calif........... 356

Novato Creek near Novato, Calif........ 406

Oakdale Canal near Knights Ferry, Calif. 274

North San Juan, Calif., Oregon Creek 

near............................

North Yuba River at Colgate diversion 

dam, Calif.

Oakland Recreation Camp, Calif., Middle 

Tuolumne River at................

South Fork Tuolumne River near.......

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

Olene, Oreg., diversion from Klamath

River to Los River near..........

Lost River diversion canal near......

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

Onyx, Calif., South Fork Kern River

near ...........:.................

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

Oregon Creek, Calif.-, Middle Yuba River

above.

259

258

31

434

433

35

191

200

353
INDEX 453

Page 

Oregon Creek near North San Juan,

Calif............................ 357

Orestimba Creek near Newman, Calif..... 248

Oroville, Calif., Feather River near... 336

Pacheco Creek near Dunneville, Calif... 169 

Pacific Gas & Electric Co. conduit near

Springville, Calif................ 196

Pacific Gas & Electric Co. conduit

No. 3 near Crane Valley Reservoir, 

Calif............................ 227

Pacoima Creek near San Fernando, Calif. 100 

Pajaro River near Chitfrenden, Calif.... 168

Pajaro River Basin, Calif., gagingstation records in..............168-173

Pala, Calif., San Luis Rey River near.. 29,30 

Palermo Canal at Enterprise, Calif..... 351

Panoche Creek below Silver Creek, near

Panoche, Calif................... 235

Pardoe Camp, Calif., Bear River at 287 

Pasadena, Calif., Arroyo Seco near...... 106

Eaton Creek near..................... 112

Paskenta, Calif., Elder Creek near..... 326

Thomes Creek at...................... 328

Paso Robles, Calif., Salinas River at.. 160 

Paynes Creek near Red Bluff, Calif..... 323

Petaluma Creek near Petaluma, Calif.... 407

Philadelphia Canal near Strawberry,-

Calif............................. 271

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

Piedra, Calif., Kings River at......... 202

Pilot Creek near Georgetown, Calif..... 379

Piru, Calif., Hopper Creek near........ 119

Piru Creek near...................... 118

Piru Creek near Piru, Calif............ 118

Pit River at Big Bend, Calif........... 312

at Fall River Mills, Calif........... 310

below Pit No. 4 Dam, Calif........... 311

near Canby, Calif.................... 309

near Montgomery Creek, Calif......... 313

South Fork, near Likely, Calif....... 314

Pit River Basin, Calif., gaging-station

records in.'.....................309-318

Pitman Creek below Tamarack Creek,

Calif............................ 223

Placervllle, Calif., Silver Creek near. 390 

Pleyto, Calif., San Antonio River at... 166 

Plunge Creek near East Highlands, Calif. 53 

Pollack Pines, Calif., Sly Park Creek

near............................. 297

Porterville, Calif., Tule River near... 195 

Potter Valley, Calif., Eel River near.. 416 

Potter Valley powerhouse tailrace

near............................. 418

Potter Valley powerhouse tailrace near

Potter Valley, Calif............. 418

Pozo, Calif., Salinas Reservoir near... 158 

Salinas River near................... 157

Toro Creek near...................... 163

Prado, Calif., Santa Ana River-near.... 46,47

Prattville, Calif., Butt Creek near...338,339 

Lake Almanor near.................... 333

North Fork Feather River near........ 334

Publications on stream flow by Geological Survey.......................6-9,11

by State agencies.................... 10-11

Putah Creek near Davis, Calif.......... 403

near Guenoc, Calif................... 401

near Winters, Calif.................. 402

Ramona, Calif., Santa Maria Creek near. 28 

Santa Ysabel Creek near............... 24

Rancheria Creek, Calif., North Fork

Kings River below................ 204

Rattlesnake Bridge, Calif., North Fork

American River at............'.... 373

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

Paynes Creek near.................... 323

Sacramento River near................ 303

Redding, Calif., Shasta Lake near...... 301

Redlands, Calif., San Timoteo Creek

near............................. 54

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

near Montebello, Calif............... 107

Ripon, Calif., Stanislaus River at..... 267

Rising Water, Calif., discharge

measurements of.................. 446

Riverside Sewage Treatment Plant,

Calif., diversion from........... 446

Page 

Rogers Creek near Azusa, Calif......... 85

Rubicon River near Georgetown, Calif... 377 

Runoff in inches, definition of........ 1

Russian River at Guernevill«, Calif.... 410

East Fork, near Calpella, Calif...... 411

near Healdaburg, Calif............... 409

near Hopland, Calif.................. 408

Russian River Basin, Calif., gagingstation records in..............408-413

Sacramento, Calif., American River at.. 375

Sacramento River at Butte City, Calif.. 304

at Colusa, Calif.................. -. 305

at Delta, Calif......................3, 300

at Keswick, Calif.................... 302

at Knights Landing, Calif............ 307

at Verona, Calif..................... 308

below Wilkins Slough, Calif.......... 306

near Red Bluff, Calif................ 303

Sacramento River Basin, Calif., gagingstation records in..............300-308

St. Helena, Calif., Conn Creek near.... 405

Napa River near...................... 404

Salinas Reservoir near Pozo, Calif..... 158

Salinas River above Pilitas Creek, near

Santa Margarita, Calif........... 159

at Paso Robles, Calif................ 160

near Bradley, Calif.................. 161

near Pozo, Calif..................... 157

near Spreckels, Calif................ 162

Salinas River Basin, Calif., gagingstation records in..............157-167

Salmon Falls, Calif., Webber Creek near 393 

Salmon River at Somesbar, Calif........ 440

Salsipuedes Creek, Calif., discharge

measurements of.................. 447

near Lompoc,' Calif................... 145

Salt Slough near Los Banos, Calif...... 239

Salt Springs Dam, Calif., North Fork

Mokelumne River below............ 280

Tiger Creek powerhouse conduit below. 285 

Salt Springs Reservoir near West Point,

Calif............................ 279

San Antonio Creek (Santa Ana River

Basin) near Claremont, Calif..... 75-76

San Antonio Creek (tributary to Pacific

Ocean) at Harris, Calif.......... 146

San Antonio River at Pleyto, Calif..... 166

San Benito River near Hollister, Calif. 172 

near Willow Creek School, Calif...... 171

San Bernardino, Calif., Devil Canyon Creeknear 62 

Lytle~Creek (east channel) at........ 65

Santa Ana River near................. 42

San Diego Creek near Irvine, Calif.,... 39 

San Diego River near Santee, Calif.... . 22

San Dieguito conduit, Calif., discharge

measurement of................... 445

San Dieguito River near San Pasqual,

Calif............................. 25

San Dieguito River .Basin, Calif., gaging-station records in........... 23-28

San Dimas Creek near San Dimas, Calif.. 87 

San Fernando, Calif., Little Tujunga

Creek near....................... 104

Pacoima Creek near................... 100

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

at Spring Street, near Los Alamitos,

Calif............................ 84

below Santa Fe Dam, near Baldwin Park,

Calif............................ 82

East Fork, near Camp Bonita, Calif... 81 

near Azusa, Calif.................... 82

West Fork, at Camp Rincon, Calif..... 84

San Gabriel River Basin, Calif., gagingstation records in............... 81-95

San Jacinto River near Elsinore, Calif. 73 

near San Jacinto, Calif.............. 71-72

San Joaquin, Calif., James bypass near. 234 

San Joaquin River above Big Creek,

Calif............................ 206

at Fremont Ford Bridge, Calif........ 212

below Friant, Calif.................. 209

below Kerckhoff powerhouse, Calif.... 207

near Dos Palos, Calif................ 211

near Mendota, Calif.................. 210

near Newman, Calif................... 213

near Vernalis, .Calif................. 214

South Fork, near Florence Lake, Calif. 216 

tributaries above Fresno River,

gaging-station records on.....215-235
454 INDEX

San Joaquin River Basin, Calif.,

gaging-station records in.......206-214

San Jose, Calif., Guadalupe River at... 177 

San Jose Creek (tributary to San Gabriel

River) near Whittier, Calif...... 90

San Jose Creek (directly tributary to

Pacific Ocean) near Goleta, Calif. 132 

San Juan Capistrano, Calif., San Juan

Creek near....................... 36

Trabuco Creek near................... 37

San Juan Creek near San Juan Capistrano,

Calif............................ 36

San Juan Creek Basin, Calif., gagingstation records in............... 36-37

San Juan Mutual Co.'s diversion, Calif.,

discharge measurements of........ 445

San Lorenzo Creek at Hayward, Calif.... 184

San Lorenzo River at Big Trees, Calif.. 174 

San Luis Creek near Los Banos, Calif... . 236

San Luis Rey River at Monserate Narrows,

near Pala, Calif................. 30

at Oceanside, Calif.................. 31

below Pala diversion dam, near Pala,

Calif............................ 29

discharge measurements of............ 445

near Bonsall, Calif.................. 30

San Luis Rey River Basin, Calif.,

gaging-station records in........ 29-31

San Miguel, Calif., Nacimiento River

near .............................. 165

San Pasqual, Calif., Guejito Creek at.. 27 

Guejito Creek near................... 26

San Dieguito River near.............. 25

Santa Ysabel Creek near.............. 25

San Timoteo Creek near Redlands, Calif. 54 

Sand Creek near Orange Cove 'Calif..... 200

Santa Agueda Creek near Santa Ynez,

Calif............................ 143

Santa Ana, Calif., Santa Ana River at.. 48 

Santiago Creek at.................... 80

Santa Ana River at Auburndale Bridge,

near Corona, Calif............... 45

at E Street Bridge, near San Bernardino, Calif................... 42

at Banner Avenue, near Corona, Calif. 44 

at Riverside Narrows, near Arlington,

Calif............................ 43

at Santa Ana, Calif.................. 48

below Prado Dam, near Prado, Calif... 46 

discharge measurements of...........445-446

near Mentone, Calif........:......... 40-41

near Prado, Calif.................... 47

Santa Ana River Basin, Calif.,'gaglngstation records in............... 40-80

Santa Anita Creek near Sierra Madre,

Calif............................ 110

Santa Clara River near Saugus, Calif... 117 

Santa Clara River Basin, Calif., gagingstation records in..............117-123

Santa Cota Creek, Calif., discharge

measurements of.................. 448

Santa Cruz Creek above Stuke Canyon,

near Santa Ynez, Calif........... 141

near Santa Ynez, Calif............... 142

Santa Margarita, Calif., Salinas River

near............................. 159

Santa Margarita River at Ysidora, Calif. 34 

near Pall Brook, Calif............... 33

Santa Margarita River Basin, Calif.,

gaging-station records in........ 31-35

Santa Maria, Calif., Alamo Creek near.. 150 

Cuyama River near.................... .148

Huasna River near.................... 151

Santa Maria Creek near Ramona, Calif... 28 

Santa Maria River at Guadalupe, Calif.. 149 

Santa Maria River Basin, Calif., gagingstation records in............L.147-155

Santa Paula Creek near Santa Paula,

Calif............................ 123

Santa Ynez, Calif., Santa Agueda Creek

near............................. 143

Santa Cruz Creek near...............141,142

Santa Ynez River near................ 133,134

Santa Ynez River at barrier, near

Surf, Calif...................... 140

at H Street, near Lompoc, Calif...... 139

at narrows, near Lompoc, Calif....... 137

at Solvang, Calif..................... 135

below Los Laureles Canyon, near Santa

Ynez, Calif...................... 133

Santa Ynez River, Calif., discharge

measurements of............;..... 446

near Buellton, Calif................. 136

near Lompoc, Calif ................... 138

near Santa Ynez, Calif.....'.......... 134

Santa Ynez River Basin, Calif., gaging-

 station records in..............133-145

Santa Ysabel Creek near Mesa Grande,

Calif............................ 23

near Ramona, Calif................... 24

near San Pasqual, Calif.............. 25

Santee, Calif-, San Diego River near... 22 

Santiago Creek at Santa Ana, Calif..... 80

at Santiago Dam, near Villa Park,

Calif............................ 78

near Villa Park, Calif............... 79

Saratoga, Calif., Campbell Creek at..... 180

Saugus, Calif., Santa Clara River near. 117 

Sawpit Creek near Monrovia, Calif...... 109

Scotia, Calif., Eel River at........... 417

Scott and Sand Creek Canals, dreg., discharge measurement of............ 447

Scott River near Port Jones, Calif..... 439

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......................... 96

Sespe Creek near Fillmore, Calif....... 121

near Wheeler Springs, Calif.......... 120

Sevenmile Creek, Oreg., discharge

measurement of.................... 448

Shakespeare Canal, Calif., discharge

measurement of................... 447

Shasta Lake near Redding, Calif........ 301

Shasta Lake, Calif., McCloud River

above............................ 318

Squaw Creek above.................... 316

Shasta River near Yreka, Calif......... 438

Shaver Lake near Big Creek, Calif...... 224

Sierra Madre, Calif., Little Santa

Anita Creek near................. Ill

Santa Anita Creek near. '. ............. 110

Silver Creek at Union Valley, Calif.... 389

near Placerville, Calif.............. 390

South Pork, near Ice House, Calif.... 391

Silver Lake, Calif., seepage from...... 447

Silver Lake Outlet near Kirkwood, Calif. 385 

Sisquoc, Calif., La Brea Creek near.... 154

Sisquoc River near................... 152

Tepusquet Creek near.............:... 155

Sisquoc River near Garey, Calif........ 153

near Sisquoc, Calif.................. 152

Sloat, Calif., Middle Pork Feather

River below. ..................... 347

Sly Park Creek near Pollack Pines,

Calif............................ 297

Smartville, Calif., Deer Creek near.... 365

Smith River near Crescent City, Calif.. 444 

Soledad, Calif., Arroyo Seco near...... 167

Solvang, Calif., Santa Ynez River at... 135 

Somesbar, Calif., Klamath River at..... 427

Salmon River at...................... 440

South San Joaquin Canal near Knights

Perry, Calif..................... 273

South Yuba River near Cisco, Calif..... 360

near Washington, Calif........:...... 381

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

Spanish Creek at Keddie, Calif......... 341

Spencer Creek, .Oreg., discharge

measurement of................... 448

Sprague River near Chiloquin, Oreg..... 429

Spreckels, Calif., Salinas River near.. 162 

Spring Creek, Oreg., discharge measurement of.......................... 447

Spring Valley ditch near Yankee Hill,

Calif............................ 345

Springville, Calif., North Fork of

Middle Pork Tule River near...... 194

Pacific Gas & Electric Co. conduit

near............................. 196

Squaw Creek above Shasta Lake, Calif... 316 

Stage-discharge relation, definition of 1 

Stanislaus River at Ripon, Calif....... 267

below Melones powerhouse, Calif...... 266

Middle Pork, at Kennedy Meadows,

Calif............................ 263

at Sand Bar Flat, near Avery, Calif. 264
INDEX 455

Stanislaus River, North Pork, near

Avery, Calif. .................... 268

South Fork, at Strawberry, Calif..... 269

near Long Barn, Calif. ............. 270

Stanislaus River Basin, Calif., gagingstation records in. ............ .263-274

Stevens Creek near Cupertino, Calif.... 175 

Stevinson, Calif., Merced River -near. .. 245 

Stockton diverting canal at Stockton,

Calif.. .........................". 277

Stony Creek near Hamilton City, Calif.. 331 

Strawberry, 'Calif., Philadelphia Canal

near ............................. 271

South Fork Stanislaus River at. ...'... 269,

Strawberry Creek near Arrowhead Springs,

Calif............................ 58

Success, Calif., South Fork Tule Rivernear. ............................ 197

Sunland, Calif., Tujunga Creek near.... 102

Sur River, Calif., discharge measurement of ........................... 447

Surf, Calif., Santa Ynez River near.... 140

Sycan River, Oreg., discharge measurement of .......................... 448

Tamarack Creek, Calif., Pitman Creek

below............................ 223

Temecula, Calif., Murrieta Creek at.... ' 34

Temecula Creek near. ................ 31,32

Temecula Creek 1 at Nigger Canyon, near

Temecula, Calif.................. 31

at Railroad Canyon, near Temecula,

Calif............................ 32

Temescal Creek near Corona, Calif 

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

Tenaya Creek near'Yosemite, Calif.!!!!! 246 Webber Creek near Salmon Falls, Calif.

1-2 

328 

198

445

17

18

Tepusquet Creek near Sisquoc, Calif....

Terms., definition of...................

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

Three Rivers-, Calif., Kaweah River near 

Tia Juana River, Calif., discharge

measurements of..................

near Dulzura, Calif..................

near Nestor, Calif...................

Tia Juana River Basin, Calif., gagingstation reeords in............... 16-20

Tiger Creek powerhouse conduit below

Salt Springs Dam, Calif.......... -285

Tilley Creek, Calif., Borel Canal at... 190 

Topanga Creek near Topanga Beach, Calif. 115 

Toro Creek near Pozo, Calif............ 163

Trabuco Creek near San Juan Capistrano,

Calif............................ 37

Tres Pinos Creek near Tres Pinos, Calif. 173 

Trinity River at Lewiston, Calif......'. 441

near Douglas City, Calif............. 442

near Hoopa, Calif.................... 443

Tujunga, Calif., Haines Creek near..... 105

Tujunga Creek below Hansen Dam, Calif.. 103 

near Colby Ranch, Calif.............. 101

near Sunland, Calif.................. 102

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

Tulare Lake Basin, Calif., gagingUpper Klamath Lake near Klamath Falls, 

Oreg.............................

Utica Canal, Calif., discharge measurement of..........................

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

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

Medley Lakes Outlet near.............

Valley Springs, Calif., Cosgrove Creek

near.

Van Duzen River at Bridgeville, Calif.. 

Ventucopa, Calif., Cuyama River near... 

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

423

447

170

383

384

276

421

147

129

127

127

Ventura River near 

Ventura River near Ventura, Calif. .. 

Ventura River Basin, Calif., gagingstation records in. ............ .124-129

Vermilion Valley, Calif., Bear Creek

near............................. 219

Mono Creek near ...................... 220

Vernalls , Calif . , San Joaquin River near 214 

Verona, Calif., Sacramento River at.... 308

Villa Park, Calif., Santiago Creek

near............................. 78,79

Vina, Calif., Deer Creek near. 

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

329

367

Ward tunnel at intake, Calif........... 217

at outlet, Calif..................... 218

Warm Creek near Colton, Calif.......... 56-57

Washington, Calif., South Yuba River 

near.

[Waterman Canyon Creek near Arrowhead

Springs, Calif

155 West Point, Calif., Middle Fork

Mokelumne River at.

361

59

393

288

Salt Springs Reservoir near.......... 279

South Fork Mokelumne River near......

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

Wheeler Springs, Calif., Sespe Creek

near.............................

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

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

Whittier, Calif., San Jose Creek near..

Wilkins Slough, Calif., Sacramento

289

370

120

193

388

River below.

Williamson River below Sprague River

306

422 

discharge measurement of............. 447

Willow Creek, North Fork, below Crane

near Chiloquin, Oreg.

Valley Reservoir, Calif.

Willow Creek School, Calif., San Beaito

226

171 

Winters, Calif., Putah Creek near...... 402

Wood River, Oreg., discharge measureRiver near.

ments of. 448 

284 

Woodbridge Canal 'at................... 290

Woodfcridge, Calif., Mokelumne River at.

Woodbridge Canal at Woodbridge, Calif. 

193(Woodland, Calif., Yolo bypass near...., 

IWoods Creek near Jacksonville; Calif..,

station records in..............193-205

Tule River near Porterville, Calif....,

North Fork of Middle Fork, near

Springville, Calif................

South Fork, near Success, Calif......

Tuolumne Canal-near Long Barn, Calif.., 

Tuolumne River above La Grange Dam,

near La Grange, Calif............

at Modesto, Calif....................

258

South Fork, near Oakland Recreation 

Camp, Calif .....................

Tuolumne River Basin, Calif., gagingstation records in..............249-262

Turlock Canal near La Grange, Calif.... 262

Twin Lakes Outlet near Kirkwood, Calif. 386

Union Valley, Calif., Silver Creek at.. 389 

Upland, Calif.- Cucamonga Creek nsar.., 70

Work, division of. 

scope of.

290

394

260

15

1

Yankee Hill, Calif., Concow Creek

near.............................. 344

Spring Valley ditch near............. 345

West Branch Feather River near. 

Yolo, Calif., Cache Creek at

343 

398 

Yolo bypass near Woodland, Calif....... 394

Yorka Linda, Calif., Carbon Creek

near............................. 95

Yosemlte, Calif., Merced River near...240,241 

Tenaya Creek near.................... 246

Ysidpra,, Calif.-, O'Neill ditch

35

._ - -... 34 

Yreka, Calif., Shasta River near....... 438

?uba River at Marysville, Calif........ 355

at Narrows Dam, Calif................ 35'4

near. 

Santa Margarita River at.

*U. S. GOVERNMENT PRINTING OFFICE &-